:root {
  --ink: #18201d;
  --ink-2: #31413b;
  --muted: #718079;
  --paper: #f6f4ee;
  --paper-2: #eeece5;
  --white: #fffefa;
  --line: #d9ddd6;
  --accent: #a23a2c;
  --accent-dark: #7e2b22;
  --jade: #547568;
  --gold: #ad8751;
  --danger: #b54335;
  --shadow: 0 18px 55px rgba(26, 35, 31, .10);
  --sans: "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --serif: "Noto Serif SC", "Songti SC", SimSun, serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); font-size: 15px; line-height: 1.7; -webkit-font-smoothing: antialiased; }
button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }
a { color: inherit; text-decoration: none; }
h1,h2,h3,p { margin-top: 0; }
h1,h2,h3 { font-family: var(--serif); line-height: 1.25; letter-spacing: -.025em; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .55; }
:focus-visible { outline: 3px solid rgba(162,58,44,.28); outline-offset: 3px; }
.skip-link { position: fixed; top: -60px; left: 20px; z-index: 200; background: var(--ink); color: white; padding: 10px 16px; }
.skip-link:focus { top: 12px; }
.content-width { width: min(1180px, calc(100% - 64px)); margin-inline: auto; }
.page-shell { min-height: 70vh; overflow: hidden; }

.site-header { height: 76px; width: 100%; padding: 0 max(32px, calc((100% - 1280px)/2)); display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid rgba(49,65,59,.12); background: rgba(246,244,238,.94); backdrop-filter: blur(12px); position: sticky; top: 0; z-index: 50; }
.brand { display: flex; align-items: center; gap: 11px; }
.brand > span:last-child { display: grid; }
.brand strong { font: 700 19px/1.1 var(--serif); letter-spacing: .12em; }
.brand small { color: var(--muted); font-size: 9px; letter-spacing: .13em; margin-top: 4px; }
.brand-mark { width: 38px; height: 38px; display: grid; place-items: center; color: var(--white); background: var(--accent); font: 700 19px var(--serif); border-radius: 3px 11px 3px 11px; transform: rotate(-2deg); }
.brand-mark.small { width: 28px; height: 28px; font-size: 14px; display: inline-grid; margin-right: 8px; }
.desktop-nav { display: flex; height: 100%; gap: 36px; align-items: center; }
.desktop-nav a { display: grid; place-items: center; height: 100%; font-weight: 500; color: var(--ink-2); position: relative; }
.desktop-nav a.active::after { content: ''; width: 18px; height: 2px; background: var(--accent); position: absolute; bottom: 17px; }
.header-actions { display: flex; align-items: center; gap: 10px; }
.avatar-button { width: 38px; height: 38px; border: 1px solid var(--line); border-radius: 50%; display: grid; place-items: center; background: var(--white); font-weight: 700; }
.ghost-button, .text-button, .line-button, .primary-button, .light-button, .back-button, .info-button { border: 0; background: none; transition: .2s ease; }
.ghost-button { border: 1px solid var(--line); background: rgba(255,255,255,.45); padding: 9px 15px; border-radius: 7px; }
.ghost-button:hover { border-color: var(--ink-2); background: var(--white); }
.text-button { padding: 7px 0; color: var(--accent); font-weight: 600; }
.line-button { padding: 10px 0; border-bottom: 1px solid currentColor; font-weight: 600; display: inline-flex; gap: 18px; align-items: center; }
.primary-button, .light-button { background: var(--ink); color: white; padding: 13px 20px; border-radius: 8px; font-weight: 600; display: inline-flex; align-items: center; justify-content: center; gap: 16px; min-height: 48px; }
.primary-button:hover { background: var(--accent-dark); transform: translateY(-1px); }
.light-button { background: var(--white); color: var(--ink); }
.light-button:hover { background: #f5efe7; }
.wide { width: 100%; }
.icon { display: inline-block; width: 15px; height: 15px; position: relative; flex: 0 0 auto; }
.icon-arrow::before { content: '→'; position: absolute; inset: -5px 0 0; font-size: 19px; }
.icon-lock::before { content: '◇'; }.icon-tune::before { content: '☷'; }.icon-search::before { content: '⌕'; font-size: 20px; position: absolute; top: -8px; }
.icon-plus::before { content: '+'; font: 400 20px var(--sans); }.icon-grid::before { content: '▦'; }.icon-users::before{content:'♙';}.icon-chart::before{content:'⌁';}.icon-rule::before{content:'≣';}.icon-book::before{content:'▤';}.icon-log::before{content:'↶';}
.eyebrow, .kicker { font-size: 12px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--accent); }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; }
.eyebrow i { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px rgba(162,58,44,.1); }
.eyebrow.light, .kicker.light { color: #dcb8a5; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 36px; }
.section-heading h2 { font-size: clamp(28px,3vw,42px); margin: 6px 0 0; }
.section-heading > p { max-width: 410px; margin: 0; color: var(--muted); }

.hero { min-height: 670px; padding: 72px max(32px, calc((100% - 1180px)/2)) 88px; display: grid; grid-template-columns: 1.05fr .95fr; gap: 80px; align-items: center; position: relative; }
.hero::before { content: ''; position: absolute; inset: 0 0 auto 0; height: 100%; background: radial-gradient(circle at 76% 28%, rgba(84,117,104,.10), transparent 29%), linear-gradient(120deg, transparent 60%, rgba(162,58,44,.035)); pointer-events: none; }
.hero-copy { position: relative; z-index: 1; }
.hero h1 { font-size: clamp(52px,6vw,78px); margin: 25px 0 24px; font-weight: 600; }
.hero h1 em, .premium-hero h1 em { color: var(--accent); font-style: normal; }
.hero-lead { max-width: 600px; color: var(--ink-2); font-size: 18px; line-height: 1.9; }
.action-row { display: flex; gap: 25px; align-items: center; margin-top: 34px; }
.trust-row { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 38px; font-size: 12px; color: var(--muted); }
.trust-row span::before { content: '✓'; color: var(--jade); margin-right: 6px; }
.hero-visual { height: 500px; background: var(--ink); color: white; position: relative; overflow: hidden; border-radius: 2px 56px 2px 56px; box-shadow: var(--shadow); }
.hero-visual::before { content: ''; position: absolute; inset: 0; background: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px); background-size: 44px 44px; mask-image: linear-gradient(to bottom,black,transparent 88%); }
.seal-label { position: absolute; top: 28px; left: 28px; border: 1px solid rgba(255,255,255,.25); padding: 6px 9px; font: 500 12px var(--serif); letter-spacing: .12em; }
.orbit-chart { position: absolute; width: 340px; height: 340px; left: 50%; top: 46%; transform: translate(-50%,-50%); }
.orbit { position: absolute; border: 1px solid rgba(255,255,255,.17); border-radius: 50%; }
.orbit-one { inset: 20px; }.orbit-two { inset: 78px; border-style: dashed; }
.orbit-core { position: absolute; inset: 118px; border-radius: 50%; background: var(--white); color: var(--ink); display: grid; place-items: center; align-content: center; box-shadow: 0 0 0 14px rgba(255,255,255,.04); }
.orbit-core strong { font: 700 42px/1 var(--serif); }.orbit-core span { font-size: 10px; color: var(--muted); margin-top: 5px; }
.point { position: absolute; width: 48px; height: 48px; border-radius: 50%; background: #35433e; display: grid; place-items: center; align-content: center; font: 600 18px var(--serif); }
.point small { font: 400 9px var(--sans); opacity: .66; }.p1{left:7px;top:125px}.p2{right:34px;top:24px}.p3{right:0;bottom:70px}.p4{left:53px;bottom:19px}
.hero-note { position: absolute; left: 32px; right: 32px; bottom: 24px; border-top: 1px solid rgba(255,255,255,.17); padding-top: 16px; display: grid; grid-template-columns: auto 1fr; gap: 0 15px; align-items: center; }
.hero-note span { color: #b8c3be; font-size: 11px; }.hero-note strong { font-family: var(--serif); }.hero-note p { grid-column: 2; margin: 2px 0 0; color: #82918a; font-size: 9px; }

.module-section { padding: 105px 0; }
.module-grid { display: grid; grid-template-columns: 1.35fr repeat(3,1fr); border: 1px solid var(--line); }
.module-grid article { min-height: 330px; padding: 28px; border-right: 1px solid var(--line); display: flex; flex-direction: column; }
.module-grid article:last-child { border: 0; }.module-featured { background: var(--ink); color: white; position: relative; overflow: hidden; }
.module-grid article > div:first-child { display: flex; justify-content: space-between; }
.module-index { font-family: var(--serif); color: var(--muted); }.status { padding: 3px 8px; background: var(--paper-2); color: var(--muted); font-size: 10px; border-radius: 2px; }.status.open { background: rgba(255,255,255,.1); color: #d7e0dc; }
.module-grid h3 { font-size: 25px; margin: 50px 0 14px; }.module-grid p { color: var(--muted); flex: 1; }.module-featured p { color: #b9c3be; }.module-featured .line-button { color: white; align-self: flex-start; }.muted-link { color: #9aa49f; font-size: 12px; }
.pillar-preview { position: absolute; right: 18px; bottom: 18px; opacity: .11; display: flex !important; gap: 8px; }.pillar-preview span { font: 600 45px var(--serif); display: grid; }.pillar-preview small { font-size: 28px; }
.report-story { padding: 70px 0 120px; }.story-layout { display: grid; grid-template-columns: 260px 1fr; border-top: 1px solid var(--line); }.story-nav { padding-top: 28px; display: grid; align-content: start; }.story-nav button { background: none; border: 0; text-align: left; padding: 14px 16px; color: var(--muted); border-left: 2px solid transparent; }.story-nav button.active { color: var(--ink); border-color: var(--accent); font-weight: 700; }.story-panel { min-height: 405px; padding: 55px 7vw; background: var(--white); }.story-panel h3 { font-size: clamp(31px,4vw,48px); margin: 18px 0; }.story-panel > p { color: var(--muted); max-width: 680px; }.story-meter { display: grid; gap: 14px; margin-top: 34px; }.story-meter span { position: relative; display: flex; justify-content: space-between; padding-bottom: 9px; font-size: 13px; }.story-meter span::after { content:''; position:absolute; left:0; bottom:0; width:var(--v); height:3px; background:var(--jade); }.story-meter span::before { content:''; position:absolute; left:0; right:0; bottom:0; height:3px; background:var(--paper-2); }.story-meter b { font-weight: 500; color: var(--muted); }
.learning-strip { background: var(--ink); color: white; padding: 92px 0; }.learning-strip h2 { font-size: clamp(34px,4vw,52px); margin: 12px 0 55px; }.learning-steps { display: grid; grid-template-columns: repeat(4,1fr); border-top: 1px solid rgba(255,255,255,.16); }.learning-steps button { color: white; background: none; border: 0; border-right: 1px solid rgba(255,255,255,.16); padding: 26px 22px; text-align:left; min-height: 160px; display:grid; grid-template-columns:auto 1fr auto; gap:14px; align-items:start; }.learning-steps button:hover { background: rgba(255,255,255,.04); }.learning-steps b { color:#dcb8a5; font:500 13px var(--serif); }.learning-steps span { display:grid; }.learning-steps strong { font:600 18px var(--serif); }.learning-steps small { color:#9faaa5; margin-top:10px; line-height:1.6; }
.site-footer { min-height: 190px; padding: 55px max(32px,calc((100% - 1180px)/2)); display:grid; grid-template-columns: 1fr 2fr 1fr; gap:40px; align-items:start; border-top:1px solid var(--line); }.site-footer p { color:var(--muted); font-size:12px; margin:0; }.site-footer a { color:var(--accent); font-weight:600; text-align:right; }.mobile-nav { display:none; }

.narrow-page { width:min(820px,calc(100% - 40px)); margin:0 auto; padding:70px 0 110px; }.page-intro.centered { text-align:center; }.page-intro h1 { font-size:clamp(36px,5vw,54px); margin:12px 0; }.page-intro p { max-width:650px; margin:0 auto; color:var(--muted); }.step-label { color:var(--accent); font-size:12px; font-weight:700; letter-spacing:.08em; }.progress-track { width:75%; margin:50px auto 34px; display:grid; grid-template-columns:repeat(3,1fr); position:relative; text-align:center; color:var(--muted); font-size:11px; }.progress-track::before { content:''; position:absolute; top:-11px; left:16.5%; right:16.5%; height:1px; background:var(--line); }.progress-track i { position:absolute; top:-12px; left:16.5%; width:33%; height:3px; background:var(--accent); z-index:1; }.progress-track span::before { content:''; display:block; width:9px; height:9px; background:var(--white); border:2px solid var(--line); border-radius:50%; margin:-15px auto 8px; position:relative; z-index:2; }.progress-track span:first-of-type::before { border-color:var(--accent); background:var(--accent); }.form-sheet { background:var(--white); border:1px solid var(--line); padding:42px; box-shadow:0 18px 45px rgba(26,35,31,.05); }.field-group { display:grid; gap:9px; margin-bottom:26px; }.field-group > label:first-child,.advanced-grid label > span { font-weight:700; font-size:13px; }.form-row { display:grid; grid-template-columns:1fr 1fr; gap:24px; }.field-group input[type="text"],.field-group input[type="date"],.field-group input[type="time"],.advanced-grid select { width:100%; height:50px; border:1px solid var(--line); border-radius:7px; background:#fbfaf6; padding:0 14px; color:var(--ink); }.field-group input:focus,.advanced-grid select:focus { border-color:var(--jade); outline:3px solid rgba(84,117,104,.1); }.field-group small { color:var(--muted); font-size:10px; }.field-error { display:none; color:var(--danger)!important; }.field-group.invalid .field-error { display:block; }.field-group.invalid input { border-color:var(--danger); }.segmented { display:grid; grid-template-columns:1fr 1fr; padding:3px; border:1px solid var(--line); background:#f3f1eb; border-radius:8px; }.segmented label { cursor:pointer; }.segmented input { position:absolute; opacity:0; pointer-events:none; }.segmented span { height:42px; display:grid; place-items:center; border-radius:5px; font-weight:500; }.segmented input:checked + span { background:var(--white); color:var(--accent); box-shadow:0 2px 8px rgba(26,35,31,.08); }.inline-check { font-size:11px!important; color:var(--muted); display:flex; align-items:center; gap:6px; font-weight:400!important; }.help { width:17px;height:17px;display:inline-grid;place-items:center;border:1px solid var(--line);border-radius:50%;font-size:10px;color:var(--muted); }.advanced-settings { border-top:1px solid var(--line); border-bottom:1px solid var(--line); margin:5px 0 26px; }.advanced-settings summary { padding:20px 0; cursor:pointer; display:flex; justify-content:space-between; list-style:none; }.advanced-settings summary span { display:flex;gap:8px;font-weight:700; }.advanced-settings summary small { color:var(--muted); }.advanced-grid { display:grid; gap:18px; padding:0 0 24px; }.advanced-grid label { display:grid;grid-template-columns:145px 1fr;gap:6px 18px;align-items:center; }.advanced-grid label small { grid-column:2;color:var(--muted); }.privacy-note,.data-control>div { display:flex;gap:13px;align-items:center;background:#f0f4f1;padding:15px 18px;margin-bottom:22px; }.privacy-note span,.data-control span { display:grid; }.privacy-note strong,.data-control strong { font-size:12px; }.privacy-note small,.data-control small { font-size:10px;color:var(--muted); }.legal-note { color:var(--muted);font-size:10px;text-align:center;margin:20px auto 0;max-width:660px; }

.report-header { padding:70px 0 36px;display:flex;justify-content:space-between;gap:30px;align-items:end;border-bottom:1px solid var(--line); }.report-header h1 { font-size:48px;margin:15px 0 7px; }.report-header p { color:var(--muted);margin:0; }.report-actions { display:flex;gap:8px; }.report-layout { display:grid;grid-template-columns:210px 1fr;gap:65px;padding:40px 0 110px; }.report-index { position:sticky;top:110px;height:max-content;display:grid;gap:7px; }.report-index>span { font-size:11px;color:var(--muted);margin-bottom:10px; }.report-index a { padding:8px 12px;border-left:2px solid transparent;color:var(--muted); }.report-index a.active { border-color:var(--accent);color:var(--ink);font-weight:700; }.report-index button { border:0;background:var(--ink);color:white;padding:14px;margin-top:18px;text-align:left;display:flex;justify-content:space-between; }.report-content { min-width:0; }.report-section { padding:50px 0;border-bottom:1px solid var(--line); }.report-section:first-child { padding-top:0; }.report-section-title { display:flex;gap:15px;align-items:start;margin-bottom:30px; }.report-section-title>span { color:var(--accent);font:500 12px var(--serif);margin-top:6px; }.report-section-title div { flex:1; }.report-section-title small { color:var(--muted);font-size:10px; }.report-section-title h2 { font-size:32px;margin:3px 0 0; }.info-button { color:var(--accent);font-size:12px;padding:5px 0;border-bottom:1px solid var(--accent); }.pillars-large { display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line); }.pillars-large>div { padding:24px 10px;text-align:center;border-right:1px solid var(--line);display:grid; }.pillars-large>div:last-child { border:0; }.pillars-large small { color:var(--muted); }.pillars-large strong,.pillars-large b { font:600 34px var(--serif); }.pillars-large b { margin-top:3px; }.pillars-large span { color:var(--accent);font-size:10px;margin-top:10px; }.caption { color:var(--muted);font-size:10px;margin:12px 0 0; }.element-layout { display:grid;grid-template-columns:1.2fr 1fr;gap:45px;align-items:center; }.element-bars { display:grid;gap:14px; }.element-bars>div { display:grid;grid-template-columns:28px 1fr 30px;gap:12px;align-items:center; }.element-bars i { height:6px;background:var(--paper-2);position:relative; }.element-bars b { display:block;height:100%;background:var(--jade); }.element-bars em { font-style:normal;font-size:11px;color:var(--muted); }.insight-box { background:var(--ink);color:white;padding:30px; }.insight-box span { color:#dcb8a5;font-size:10px; }.insight-box h3 { font-size:22px;margin:10px 0; }.insight-box p { color:#abb6b0;font-size:12px;margin:0; }.accordion-list details,.faq details { border-top:1px solid var(--line); }.accordion-list details:last-child,.faq details:last-child { border-bottom:1px solid var(--line); }.accordion-list summary,.faq summary { list-style:none;cursor:pointer;padding:20px 0;display:flex;align-items:center;gap:16px; }.accordion-list summary>span { color:var(--muted);font:500 11px var(--serif); }.accordion-list summary strong { flex:1;font:600 18px var(--serif); }.accordion-list details[open] .icon-plus,.faq details[open] .icon-plus { transform:rotate(45deg); }.accordion-list details>div { padding:0 38px 25px; }.accordion-list details p { color:var(--ink-2); }.accordion-list details small { display:block;color:var(--muted);margin-bottom:8px; }.accordion-list details a { color:var(--accent);font-weight:600;font-size:12px; }.evidence-section { background:#ebe8df;padding:38px!important;margin-top:50px;border:0; }.evidence-section h2 { font-size:28px;margin:9px 0; }.evidence-section p { color:var(--muted); }.premium-teaser { margin-top:50px;background:var(--accent-dark);color:white;padding:42px;display:flex;align-items:center;justify-content:space-between;gap:30px; }.premium-teaser h2 { font-size:29px;margin:10px 0; }.premium-teaser p { color:#e0c7bf;max-width:620px;margin:0; }

.premium-hero { padding:90px 0;display:grid;grid-template-columns:1fr 430px;align-items:center;gap:70px; }.premium-hero h1 { font-size:clamp(44px,5vw,66px);margin:18px 0; }.premium-hero p { color:var(--muted);font-size:17px;max-width:600px; }.premium-orbit { height:390px;border-radius:50%;border:1px solid var(--line);position:relative;display:grid;place-items:center;background:radial-gradient(circle,#fff 0 25%,transparent 26%),conic-gradient(from 40deg,rgba(84,117,104,.13),transparent 20%,rgba(162,58,44,.12),transparent 62%); }.premium-orbit::before { content:'';position:absolute;inset:50px;border:1px dashed #c9cec8;border-radius:50%; }.premium-orbit i { width:120px;height:120px;border-radius:50%;background:var(--ink);color:white;display:grid;place-items:center;text-align:center;font:600 20px var(--serif);z-index:2; }.premium-orbit span { position:absolute;background:var(--white);border:1px solid var(--line);padding:8px 14px;font-size:11px;z-index:3; }.premium-orbit span:nth-child(1){top:20px}.premium-orbit span:nth-child(2){right:5px}.premium-orbit span:nth-child(3){bottom:25px}.premium-orbit span:nth-child(4){left:0}.unlock-preview { padding:65px 0 100px; }.unlock-grid { display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line); }.unlock-grid article { padding:28px;min-height:245px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;grid-template-columns:1fr auto;align-content:start; }.unlock-grid article>span { color:var(--accent);font:500 12px var(--serif); }.unlock-grid article>small { color:var(--muted); }.unlock-grid h3,.unlock-grid p,.unlock-grid button { grid-column:1/-1; }.unlock-grid h3 { font-size:22px;margin:32px 0 9px; }.unlock-grid p { color:var(--muted);font-size:12px; }.unlock-grid button { justify-self:start; }.pricing-section { background:var(--ink);color:white;padding:80px max(32px,calc((100% - 1040px)/2));display:grid;grid-template-columns:1fr 370px;gap:90px;align-items:center; }.pricing-copy h2 { font-size:42px;margin:12px 0 25px; }.pricing-copy ul { list-style:none;padding:0;display:grid;gap:10px; }.pricing-copy li::before { content:'✓';color:#dcb8a5;margin-right:10px; }.pricing-copy p { color:#82918a;font-size:11px;margin-top:25px; }.pricing-card { background:#fffefa;color:var(--ink);padding:28px;position:relative; }.segmented.compact span { height:36px; }.saving { position:absolute;right:28px;top:87px;background:#f0dfd5;color:var(--accent);font-size:10px;padding:3px 7px; }.price { display:grid;margin:30px 0; }.price strong { font:700 48px var(--serif); }.price span { color:var(--muted);font-size:11px; }.pricing-card small { display:block;text-align:center;color:var(--muted);margin-top:12px; }.faq { padding:100px 0;max-width:860px; }.faq h2 { font-size:40px;margin:8px 0 35px; }.faq summary { justify-content:space-between;font:600 17px var(--serif); }.faq p { color:var(--muted);padding:0 0 20px; }

.learn-hero { background:var(--ink);color:white;padding:90px 0 100px;position:relative;overflow:hidden; }.learn-hero::after { content:'易';font:700 380px var(--serif);position:absolute;right:4vw;top:-125px;color:rgba(255,255,255,.025); }.learn-hero h1 { font-size:clamp(46px,6vw,70px);margin:18px 0; }.learn-hero p { color:#aab5b0;font-size:17px;margin-bottom:30px; }.learn-library { padding:90px 0; }.search-field { width:310px;height:44px;display:flex;align-items:center;gap:9px;border-bottom:1px solid var(--line); }.search-field input { border:0;background:none;outline:0;width:100%; }.filter-row { display:flex;gap:8px;margin-bottom:32px; }.filter-row button { border:1px solid var(--line);background:transparent;padding:8px 17px;border-radius:30px; }.filter-row button.active { background:var(--ink);color:white;border-color:var(--ink); }.course-grid { display:grid;grid-template-columns:repeat(3,1fr);gap:20px; }.course-grid article { background:var(--white);border:1px solid var(--line); }.course-art { height:175px;position:relative;overflow:hidden;background:#dcded8; }.course-art span { position:absolute;top:18px;left:18px;background:rgba(255,255,255,.86);padding:4px 8px;font-size:10px;z-index:2; }.course-art i,.course-art::before,.course-art::after { content:'';position:absolute;border-radius:50%;border:1px solid rgba(24,32,29,.24); }.course-art i { width:100px;height:100px;top:38px;left:calc(50% - 50px); }.course-art::before { width:160px;height:160px;top:7px;left:calc(50% - 80px); }.course-art::after { width:48px;height:48px;top:64px;left:calc(50% - 24px);background:var(--ink); }.art-2 { background:#eadfd5; }.art-3 { background:#ded5cc; }.art-4 { background:#d5dedb; }.course-body { padding:24px; }.course-body>small { color:var(--muted); }.course-body h3 { font-size:21px;margin:12px 0 8px; }.course-body p { color:var(--muted);font-size:12px;min-height:42px; }.learning-map { padding:30px 0 110px;display:grid;grid-template-columns:1fr 1.2fr;gap:100px; }.learning-map h2 { font-size:38px;margin:10px 0; }.learning-map>div p { color:var(--muted); }.learning-map ol { list-style:none;padding:0;margin:0; }.learning-map li { display:flex;gap:18px;padding:19px 0;border-bottom:1px solid var(--line); }.learning-map li>span { width:28px;height:28px;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;font-size:11px; }.learning-map li div { display:grid; }.learning-map li small { color:var(--muted); }.learning-map li.done>span { background:var(--jade);color:white;border-color:var(--jade); }.learning-map li.current>span { border-color:var(--accent);color:var(--accent); }.learning-map li.current strong { color:var(--accent); }
.course-page { background:var(--white);min-height:100vh; }.course-top { height:70px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 28px; }.back-button { font-weight:600; }.course-top>div { display:flex;align-items:center;gap:12px;font-size:10px;color:var(--muted); }.course-top>div i { width:150px;height:4px;background:var(--paper-2); }.course-top>div b { display:block;height:100%;background:var(--accent); }.bookmark.active { color:var(--accent);border-color:var(--accent); }.course-layout { display:grid;grid-template-columns:330px 1fr;min-height:calc(100vh - 70px); }.lesson-list { background:#f0eee7;padding:45px 25px; }.lesson-list h1 { font-size:25px;margin:12px 0 30px; }.lesson-list nav { display:grid; }.lesson-list button { border:0;background:transparent;text-align:left;padding:12px 10px;display:flex;gap:12px;color:var(--muted);border-left:2px solid transparent; }.lesson-list button span { font:500 10px var(--serif); }.lesson-list button.active { background:var(--white);color:var(--ink);border-color:var(--accent);font-weight:700; }.lesson-list button.done span { color:var(--jade); }.lesson-content { width:min(760px,calc(100% - 70px));margin:0 auto;padding:70px 0; }.lesson-number { color:var(--accent);font-size:11px;font-weight:700; }.lesson-content h2 { font-size:42px;margin:10px 0 20px; }.lesson-content .lead { font-size:18px;color:var(--ink-2); }.lesson-content h3 { font-size:25px;margin:45px 0 14px; }.principle-diagram { margin:40px 0;background:var(--paper);padding:28px;display:flex;align-items:center;justify-content:center;gap:14px; }.principle-diagram>div { min-width:110px;text-align:center;border:1px solid var(--line);background:var(--white);padding:13px;display:grid; }.principle-diagram small { color:var(--muted);font-size:9px; }.principle-diagram .result { background:var(--ink);color:white; }.lesson-content blockquote { margin:30px 0;padding:24px;border-left:3px solid var(--accent);background:#f3eee8;font:600 20px/1.8 var(--serif); }.lesson-content blockquote span,.lesson-content blockquote small { display:block;font:500 10px var(--sans);color:var(--accent); }.lesson-content blockquote small { color:var(--muted); }.case-compare { display:grid;grid-template-columns:1fr 1fr;gap:14px; }.case-compare>div { border:1px solid var(--line);padding:22px; }.case-compare span { color:var(--accent);font-size:10px; }.case-compare strong { display:block;margin:8px 0; }.case-compare p { color:var(--muted);font-size:12px;margin:0; }.lesson-actions { margin-top:55px;padding-top:25px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between; }.lesson-actions>span { color:var(--muted);font-size:10px; }

.account-hero { padding:75px 0 40px;display:flex;align-items:end;justify-content:space-between; }.account-hero h1 { font-size:46px;margin:8px 0; }.account-hero p { color:var(--muted); }.account-stats { display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line); }.account-stats>div { padding:24px;border-right:1px solid var(--line);display:grid; }.account-stats>div:last-child { border:0; }.account-stats span { color:var(--muted);font-size:10px; }.account-stats strong { font:600 28px var(--serif); }.account-stats small { color:var(--muted);font-size:11px; }.account-stats .accent { color:var(--accent);font-size:20px; }.chart-library { padding:70px 0; }.chart-table { border-top:1px solid var(--line); }.chart-head,.chart-row { display:grid;grid-template-columns:1.4fr 1.3fr 1fr .7fr 25px;gap:20px;align-items:center;padding:14px 12px;border-bottom:1px solid var(--line); }.chart-head { color:var(--muted);font-size:10px; }.chart-row { width:100%;border-left:0;border-right:0;border-top:0;background:transparent;text-align:left; }.chart-row:hover { background:var(--white); }.chart-row>span:first-child { display:grid;grid-template-columns:38px 1fr; }.chart-row>span:first-child i { grid-row:1/3;width:34px;height:34px;background:var(--ink);color:white;border-radius:50%;display:grid;place-items:center;font-style:normal; }.chart-row small { color:var(--muted);font-size:9px; }.chart-row em { font-style:normal;background:#e6eee9;color:var(--jade);padding:4px 8px;font-size:10px; }.chart-row em.warn { background:#eee5d7;color:#8c6c38; }.empty-state { text-align:center;padding:50px; }.empty-state p { color:var(--muted); }.data-control { margin-bottom:100px;background:#eef1ed;padding:24px;display:flex;align-items:center;justify-content:space-between; }.data-control>div { margin:0;padding:0;background:none; }

.admin-frame { min-height:100vh;background:#f1f2ef;display:grid;grid-template-columns:235px 1fr; }.admin-sidebar { background:var(--ink);color:white;padding:24px 18px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh; }.brand.inverse small { color:#86958e; }.admin-sidebar nav { display:grid;gap:5px;margin-top:50px; }.admin-sidebar nav a,.admin-sidebar nav button { color:#aab5b0;background:transparent;border:0;padding:11px 13px;text-align:left;display:flex;align-items:center;gap:12px;border-radius:5px; }.admin-sidebar nav .active { background:rgba(255,255,255,.08);color:white; }.admin-user { margin-top:auto;border-top:1px solid rgba(255,255,255,.12);padding-top:18px;display:flex;gap:11px;align-items:center; }.admin-user .avatar-button { background:#394740;border:0; }.admin-user>span:last-child { display:grid; }.admin-user small { color:#85928c;font-size:9px; }.admin-main { min-width:0;padding:30px 34px 70px; }.admin-header { display:flex;justify-content:space-between;align-items:end;margin-bottom:28px; }.admin-header>div:first-child>span { color:var(--accent);font-size:11px;font-weight:700; }.admin-header h1 { font-size:32px;margin:5px 0 2px; }.admin-header p { color:var(--muted);font-size:10px;margin:0; }.admin-header>div:last-child { display:flex;gap:8px;align-items:center; }.admin-header select { height:40px;border:1px solid var(--line);background:white;padding:0 12px;border-radius:6px; }.admin-metrics { display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:14px; }.admin-metrics article { background:white;border:1px solid #dfe2de;padding:20px;position:relative;overflow:hidden; }.admin-metrics span { color:var(--muted);font-size:10px; }.admin-metrics strong { display:block;font:600 28px var(--serif);margin-top:7px; }.admin-metrics small { color:var(--jade);font-size:10px; }.admin-metrics .danger { color:var(--danger); }.spark { position:absolute;width:75px;height:30px;right:12px;bottom:15px;border-bottom:2px solid var(--jade);transform:skewY(-10deg);opacity:.4; }.s2{transform:skewY(8deg)}.s3{transform:skewY(-4deg)}.s4{border-color:var(--danger);transform:skewY(12deg)}.admin-grid { display:grid;grid-template-columns:1.75fr 1fr;gap:14px;margin-bottom:14px; }.admin-grid.lower { grid-template-columns:1.6fr 1fr; }.admin-panel { background:white;border:1px solid #dfe2de;padding:22px; }.panel-head { display:flex;justify-content:space-between;align-items:start;margin-bottom:20px; }.panel-head>div { display:grid; }.panel-head span { font-weight:700; }.panel-head small { color:var(--muted);font-size:9px; }.legend { display:flex!important;flex-direction:row;gap:13px;font-size:9px;color:var(--muted); }.legend i { width:7px;height:7px;background:var(--jade);display:inline-block;margin-right:4px;border-radius:50%; }.legend span:nth-child(2) i{background:var(--gold)}.legend span:nth-child(3) i{background:var(--danger)}.trend-chart { height:230px;display:grid;grid-template-columns:35px 1fr; }.axis { display:flex;flex-direction:column;justify-content:space-between;color:var(--muted);font-size:8px;padding-bottom:27px; }.bars { display:flex;align-items:end;gap:12px;border-left:1px solid var(--line);border-bottom:1px solid var(--line);padding:0 13px 0;height:205px;background:repeating-linear-gradient(to bottom,#edf0ec 0 1px,transparent 1px 51px); }.bars>div { flex:1;height:100%;display:flex;align-items:end;position:relative; }.bars>div>i { width:100%;display:block;background:#69897d;position:relative; }.bars>div>i b { position:absolute;bottom:0;left:0;right:0;background:#b16b5f; }.bars span { position:absolute;bottom:-24px;width:100%;text-align:center;color:var(--muted);font-size:8px; }.health-panel .panel-head em { color:var(--jade);background:#e8efeb;padding:4px 8px;font-style:normal;font-size:9px; }.health-row { display:grid;grid-template-columns:1fr auto 45px;gap:12px;padding:13px 0;border-bottom:1px solid #edf0ec;font-size:11px; }.health-row span i { width:6px;height:6px;background:var(--jade);border-radius:50%;display:inline-block;margin-right:7px; }.health-row small { color:var(--muted); }.admin-table>div,.admin-table>button { display:grid;grid-template-columns:1.2fr .7fr 1.1fr .8fr .7fr;gap:10px;padding:10px 5px;border:0;border-bottom:1px solid #edf0ec;width:100%;background:transparent;text-align:left;font-size:10px; }.admin-table>div { color:var(--muted);font-size:8px; }.admin-table em { font-style:normal;padding:3px 6px;background:#e8efeb;color:var(--jade); }.admin-table .state-1 { background:#eee8d9;color:#8b6c36; }.admin-table .state-2 { background:#f2dfdc;color:var(--danger); }.alert-panel>.panel-head b { background:var(--accent);color:white;width:25px;height:25px;display:grid;place-items:center;border-radius:50%; }.alert-panel>button { width:100%;border:0;border-top:1px solid #edf0ec;background:transparent;padding:13px 0;display:grid;grid-template-columns:28px 1fr 16px;gap:9px;text-align:left;align-items:center; }.alert-panel>button>i { font-style:normal;font-size:8px;background:#eee8d9;color:#8b6c36;padding:3px;text-align:center; }.alert-panel>button>i.high { background:#f2dfdc;color:var(--danger); }.alert-panel>button span { display:grid; }.alert-panel>button small { color:var(--muted);font-size:8px; }

.lab-backdrop { position:fixed;inset:0;background:rgba(18,24,22,.35);z-index:80; }.state-lab { position:fixed;right:0;top:0;bottom:0;width:min(390px,92vw);background:var(--white);z-index:81;padding:30px;box-shadow:-20px 0 50px rgba(0,0,0,.15);animation:slide-in .25s ease; }.state-lab>div:first-child { display:flex;justify-content:space-between; }.state-lab h2 { font-size:30px;margin:25px 0 7px; }.state-lab>p { color:var(--muted);font-size:12px; }.close-button { border:0;background:none;font-size:25px;line-height:1; }.state-options { display:grid;grid-template-columns:1fr 1fr;gap:7px;margin:25px 0; }.state-options button { border:1px solid var(--line);background:transparent;padding:9px; }.state-options button:hover { border-color:var(--accent);color:var(--accent); }.state-demo { min-height:230px;background:var(--paper);display:grid;place-items:center;align-content:center;text-align:center;padding:25px; }.demo-glyph { width:50px;height:50px;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;color:var(--accent);font-size:22px;margin-bottom:15px; }.state-demo strong { font-family:var(--serif);font-size:20px; }.state-demo p { color:var(--muted);font-size:11px; }.modal-backdrop { position:fixed;inset:0;background:rgba(18,24,22,.62);z-index:90;display:grid;place-items:center;padding:20px; }.modal { width:min(440px,100%);background:var(--white);padding:38px;position:relative;box-shadow:var(--shadow); }.modal>.close-button { position:absolute;right:18px;top:14px; }.modal h2 { font-size:28px;margin:22px 0 10px; }.modal p { color:var(--muted);margin-bottom:25px; }.toast-region { position:fixed;right:24px;bottom:24px;z-index:120;display:grid;gap:8px; }.toast { background:var(--ink);color:white;padding:12px 18px;box-shadow:var(--shadow);transform:translateY(15px);opacity:0;transition:.22s; }.toast.show { transform:none;opacity:1; }.spinner { width:18px;height:18px;border:2px solid rgba(255,255,255,.3);border-top-color:currentColor;border-radius:50%;display:inline-block;animation:spin .8s linear infinite; }

@keyframes spin { to{transform:rotate(360deg)} } @keyframes slide-in { from{transform:translateX(100%)} }

@media (max-width: 980px) {
  .content-width { width:min(100% - 40px,760px); }.hero { grid-template-columns:1fr;gap:50px;padding-top:60px; }.hero-copy { max-width:750px; }.hero-visual { width:min(600px,100%); }.module-grid { grid-template-columns:1fr 1fr; }.module-grid article:nth-child(2){border-right:0}.module-grid article:nth-child(-n+2){border-bottom:1px solid var(--line)}.learning-steps{grid-template-columns:1fr 1fr}.learning-steps button:nth-child(2){border-right:0}.premium-hero{grid-template-columns:1fr 340px;gap:30px}.unlock-grid{grid-template-columns:1fr 1fr}.course-grid{grid-template-columns:1fr 1fr}.admin-frame{grid-template-columns:1fr}.admin-sidebar{position:static;height:auto;flex-direction:row;align-items:center;gap:20px}.admin-sidebar nav{display:flex;margin:0;overflow:auto;flex:1}.admin-sidebar nav button:nth-of-type(n+4){display:none}.admin-user{display:none}.admin-grid,.admin-grid.lower{grid-template-columns:1fr}.admin-metrics{grid-template-columns:1fr 1fr}.report-layout{grid-template-columns:170px 1fr;gap:35px}.course-layout{grid-template-columns:265px 1fr}.principle-diagram{flex-wrap:wrap}.learning-map{gap:45px}
}

@media (max-width: 680px) {
  body { font-size:14px;padding-bottom:66px; }.content-width { width:calc(100% - 32px); }.site-header { height:62px;padding:0 16px; }.site-header .brand small,.desktop-nav,.lab-trigger { display:none; }.brand-mark { width:33px;height:33px;font-size:16px; }.header-actions .ghost-button { display:none; }.avatar-button { width:34px;height:34px; }.mobile-nav { position:fixed;bottom:0;left:0;right:0;height:66px;background:rgba(255,254,250,.97);display:grid;grid-template-columns:repeat(4,1fr);z-index:60;border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom); }.mobile-nav a { display:grid;place-items:center;align-content:center;gap:2px;color:var(--muted);font-size:10px; }.mobile-nav a.active { color:var(--accent); }.mobile-nav .icon::before { content:'◇';font-size:16px; }.mobile-nav a.active .icon::before{content:'◆'}.hero { min-height:auto;padding:50px 16px 70px;gap:40px; }.hero h1 { font-size:48px; }.hero-lead { font-size:15px; }.action-row { align-items:stretch;flex-direction:column;gap:8px; }.action-row .text-button { text-align:center; }.trust-row { gap:8px 14px;margin-top:25px; }.hero-visual { height:410px;border-radius:2px 34px 2px 34px; }.orbit-chart { width:285px;height:285px; }.orbit-core{inset:95px}.p1{left:1px;top:105px}.p2{right:24px;top:18px}.p3{right:0;bottom:55px}.p4{left:42px;bottom:10px}.hero-note{left:20px;right:20px}.module-section { padding:75px 0; }.section-heading { display:block;margin-bottom:25px; }.section-heading h2 { font-size:31px; }.section-heading>p { margin-top:12px; }.module-grid { grid-template-columns:1fr; }.module-grid article{min-height:230px;border-right:0;border-bottom:1px solid var(--line)!important}.module-grid h3{margin-top:35px}.report-story{padding:30px 0 80px}.story-layout{grid-template-columns:1fr}.story-nav{display:flex;overflow:auto;padding:12px 0}.story-nav button{white-space:nowrap;border-left:0;border-bottom:2px solid transparent}.story-nav button.active{border-bottom-color:var(--accent)}.story-panel{padding:35px 24px;min-height:380px}.story-panel h3{font-size:30px}.learning-strip{padding:70px 0}.learning-steps{grid-template-columns:1fr}.learning-steps button{min-height:120px;border-right:0;border-bottom:1px solid rgba(255,255,255,.16)}.site-footer{padding:40px 16px;display:block;min-height:auto}.site-footer p{margin:18px 0}.site-footer a{text-align:left}.narrow-page{width:calc(100% - 24px);padding:45px 0 70px}.page-intro h1{font-size:35px}.progress-track{width:100%;margin-top:42px}.form-sheet{padding:24px 18px}.form-row{grid-template-columns:1fr;gap:0}.advanced-grid label{grid-template-columns:1fr}.advanced-grid label small{grid-column:1}.report-header{padding:45px 0 25px;display:block}.report-header h1{font-size:36px}.report-actions{margin-top:20px}.report-layout{grid-template-columns:1fr;padding-top:0}.report-index{position:static;display:flex;overflow:auto;top:auto;padding:14px 0;border-bottom:1px solid var(--line)}.report-index>span,.report-index button{display:none}.report-index a{white-space:nowrap;border-left:0}.report-index a.active{border-bottom:2px solid var(--accent)}.report-section{padding:38px 0}.pillars-large strong,.pillars-large b{font-size:28px}.element-layout{grid-template-columns:1fr}.premium-teaser{display:block;padding:28px}.premium-teaser .light-button{margin-top:24px}.premium-hero{padding:55px 0;grid-template-columns:1fr}.premium-hero h1{font-size:43px}.premium-orbit{height:330px}.unlock-preview{padding:45px 0 70px}.unlock-grid{grid-template-columns:1fr}.pricing-section{padding:65px 20px;grid-template-columns:1fr;gap:40px}.faq{padding:70px 0}.learn-hero{padding:60px 0 75px}.learn-hero h1{font-size:42px}.learn-library{padding:65px 0}.search-field{width:100%;margin-top:22px}.course-grid{grid-template-columns:1fr}.learning-map{grid-template-columns:1fr;gap:25px;padding-bottom:80px}.course-top{padding:0 14px}.course-top>div span,.course-top>div strong,.bookmark{display:none}.course-layout{grid-template-columns:1fr}.lesson-list{padding:28px 16px 10px}.lesson-list h1{font-size:23px}.lesson-list nav{display:flex;overflow:auto;padding-bottom:10px}.lesson-list button{min-width:180px;border-left:0;border-bottom:2px solid transparent}.lesson-list button.active{border-bottom-color:var(--accent)}.lesson-content{width:calc(100% - 32px);padding:45px 0}.lesson-content h2{font-size:34px}.principle-diagram{display:grid;grid-template-columns:1fr}.principle-diagram>i{text-align:center}.case-compare{grid-template-columns:1fr}.lesson-actions{gap:8px}.lesson-actions>span{display:none}.account-hero{padding:50px 0 30px;display:block}.account-hero h1{font-size:36px}.account-hero .primary-button{margin-top:18px}.account-stats>div{padding:17px 10px}.account-stats strong{font-size:23px}.chart-head{display:none}.chart-row{grid-template-columns:1fr 25px;padding:18px 8px}.chart-row>span:nth-child(2),.chart-row>span:nth-child(3),.chart-row>span:nth-child(4){display:none}.data-control{display:block}.data-control .ghost-button{margin-top:12px;width:100%}.admin-frame{display:block}.admin-sidebar{padding:13px 14px;overflow:auto}.admin-sidebar .brand{display:none}.admin-sidebar nav{width:100%;gap:4px}.admin-sidebar nav a,.admin-sidebar nav button{white-space:nowrap;padding:9px}.admin-sidebar nav button:nth-of-type(n+3){display:none}.admin-main{padding:20px 14px 50px}.admin-header{display:block}.admin-header>div:last-child{margin-top:15px}.admin-header .avatar-button{margin-left:auto}.admin-metrics{grid-template-columns:1fr 1fr;gap:8px}.admin-metrics article{padding:15px}.admin-metrics strong{font-size:23px}.admin-grid{gap:8px}.admin-panel{padding:16px;overflow:auto}.chart-panel{min-width:0}.trend-chart{min-width:480px}.health-row{min-width:350px}.task-panel .admin-table{min-width:570px}.state-lab{padding:24px}.toast-region{right:12px;bottom:80px;left:12px}.toast{text-align:center}.modal{padding:30px 24px}
}

@media (prefers-reduced-motion: reduce) {
  *,*::before,*::after { animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.01ms!important; }
}

/* Mobile-first comprehensive tool home. Only verified modules receive an open state. */
.home-app-shell { padding: 46px 0 90px; }
.home-title-row { display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:24px; }
.home-title-row h1 { font-size:48px;margin:3px 0 0;letter-spacing:.08em; }
.home-title-row p { color:var(--muted);margin:0 0 8px; }
.today-overview { min-height:260px;background:var(--white);border:1px solid var(--line);border-radius:24px;box-shadow:0 14px 38px rgba(26,35,31,.07);padding:32px 38px;display:grid;grid-template-columns:1.05fr 1fr;align-items:center;gap:35px;position:relative;overflow:hidden; }
.today-overview::before { content:'';position:absolute;inset:auto -5% -50% 30%;height:95%;background:radial-gradient(ellipse at center,rgba(84,117,104,.14),transparent 67%);pointer-events:none; }
.today-date { display:grid;gap:13px;position:relative;z-index:1; }
.today-date>span { color:var(--jade);font-weight:800;font-size:20px; }
.today-date>div { display:flex;align-items:center;gap:18px; }
.today-date>div>strong { font:600 92px/.85 var(--serif);letter-spacing:-.08em; }
.today-date p { display:grid;margin:0;gap:1px; }
.today-date b { font-size:20px; }
.today-date small { color:var(--ink-2);font-size:13px; }
.today-pillars { display:grid;grid-template-columns:repeat(4,1fr);gap:14px;position:relative;z-index:1; }
.today-pillars>div { display:grid;place-items:center; }
.today-pillars strong,.today-pillars b { font:700 33px/1.18 var(--serif); }
.today-pillars>div:nth-child(1) strong,.today-pillars>div:nth-child(1) b { color:var(--accent); }
.today-pillars>div:nth-child(2) strong,.today-pillars>div:nth-child(2) b { color:#8a6130; }
.today-pillars>div:nth-child(3) strong,.today-pillars>div:nth-child(3) b { color:#315e89; }
.today-pillars>div:nth-child(4) strong,.today-pillars>div:nth-child(4) b { color:var(--jade); }
.today-pillars small { color:var(--muted);margin-top:8px; }
.today-source { position:absolute;right:38px;bottom:15px;color:var(--muted);font-size:9px;margin:0; }
.today-loading,.today-feedback { display:grid;place-items:center;text-align:center;gap:7px;position:relative;z-index:1; }
.today-loading .spinner { border-color:rgba(84,117,104,.2);border-top-color:var(--jade); }
.today-loading small,.today-feedback small { color:var(--muted); }
.today-feedback .line-button { margin-top:5px; }
.home-notice { margin:18px 0 26px;padding:16px 20px;background:linear-gradient(110deg,var(--accent-dark),var(--accent));color:white;border-radius:13px;display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;box-shadow:0 9px 25px rgba(126,43,34,.18); }
.home-notice>span { color:#efd5cc;font-size:11px;border-right:1px solid rgba(255,255,255,.25);padding-right:14px; }
.home-notice button { border:0;background:#fff5e8;color:var(--accent-dark);border-radius:30px;padding:8px 15px;font-weight:700; }
.tool-hub { background:var(--white);border:1px solid var(--line);border-radius:24px;padding:30px; }
.tool-hub-heading { display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:25px; }
.tool-hub-heading h2 { font-size:30px;margin:5px 0 0; }
.tool-hub-heading p { color:var(--muted);font-size:11px;margin:0 0 6px; }
.tool-hub-heading p i { width:7px;height:7px;display:inline-block;background:var(--jade);border-radius:50%;margin-right:4px; }
.tool-grid { display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px; }
.tool-card { min-width:0;min-height:135px;border:1px solid #e5e8e3;background:#f4f7f4;border-radius:18px;padding:18px 8px 13px;display:grid;place-items:center;align-content:center;gap:8px;position:relative;transition:.2s ease; }
.tool-card:hover { transform:translateY(-2px);border-color:#c8d0ca;box-shadow:0 10px 22px rgba(26,35,31,.07); }
.tool-card.is-open { background:#edf4f0;border-color:#b9cdc3; }
.tool-card.is-open::after { content:'可用';position:absolute;right:8px;top:8px;background:var(--accent);color:white;border-radius:20px;padding:1px 6px;font-size:8px; }
.tool-glyph { width:54px;height:54px;border:1px solid rgba(84,117,104,.35);border-radius:50%;display:grid;place-items:center;color:var(--jade);font:700 25px var(--serif);background:rgba(255,255,255,.68); }
.is-open .tool-glyph { color:white;background:var(--jade);border-color:var(--jade); }
.tool-card strong { font-size:15px;white-space:nowrap; }
.tool-card small { color:var(--muted);font-size:9px; }
.home-learning-card { margin-top:26px;background:var(--ink);color:white;border-radius:24px;padding:35px 38px;display:flex;justify-content:space-between;align-items:end;gap:35px; }
.home-learning-card h2 { font-size:31px;margin:8px 0; }
.home-learning-card p { color:#aab5b0;margin:0; }
.developing-page { min-height:65vh;padding:110px 0;text-align:center;display:grid;place-items:center;align-content:center; }
.developing-seal { width:70px;height:70px;border-radius:5px 22px 5px 22px;background:var(--accent);color:white;display:grid;place-items:center;font:700 34px var(--serif);margin-bottom:24px; }
.developing-page h1 { font-size:48px;margin:12px 0; }
.developing-page p { color:var(--muted);max-width:560px;margin:0 auto 28px; }

.icon-home::before { content:'⌂';font-size:18px;position:absolute;top:-6px; }
.icon-learn::before { content:'▷';font-size:18px;position:absolute;top:-6px; }
.icon-library::before { content:'▤';font-size:17px;position:absolute;top:-5px; }
.icon-shop::before { content:'▱';font-size:18px;position:absolute;top:-6px; }
.icon-charts::before { content:'○';font-size:18px;position:absolute;top:-6px; }

@media (max-width:680px) {
  .mobile-nav { grid-template-columns:repeat(5,1fr); }
  .mobile-nav .icon-home::before,.mobile-nav a.active .icon-home::before { content:'⌂'; }
  .mobile-nav .icon-learn::before,.mobile-nav a.active .icon-learn::before { content:'▷'; }
  .mobile-nav .icon-library::before,.mobile-nav a.active .icon-library::before { content:'▤'; }
  .mobile-nav .icon-shop::before,.mobile-nav a.active .icon-shop::before { content:'▱'; }
  .mobile-nav .icon-charts::before,.mobile-nav a.active .icon-charts::before { content:'○'; }
  .home-app-shell { width:100%;padding:24px 12px 28px; }
  .home-title-row { align-items:center;margin:0 6px 16px; }
  .home-title-row h1 { font-size:31px; }
  .home-title-row p { max-width:170px;text-align:right;font-size:10px;margin:0; }
  .today-overview { min-height:212px;border-radius:20px;padding:22px 18px;grid-template-columns:1.08fr .92fr;gap:8px; }
  .today-date>span { font-size:17px; }
  .today-date>div { gap:10px; }
  .today-date>div>strong { font-size:67px; }
  .today-date b { font-size:15px; }
  .today-date small { font-size:10px; }
  .today-pillars { gap:4px; }
  .today-pillars strong,.today-pillars b { font-size:23px; }
  .today-pillars small { font-size:9px;margin-top:5px; }
  .today-source { right:18px;left:18px;bottom:9px;text-align:right;font-size:7px; }
  .today-loading,.today-feedback { font-size:11px; }
  .today-loading small,.today-feedback small { font-size:8px; }
  .home-notice { margin:12px 0 16px;padding:12px 13px;grid-template-columns:1fr auto;gap:2px 8px;border-radius:11px; }
  .home-notice>span { grid-column:1;border:0;padding:0;font-size:8px; }
  .home-notice strong { grid-column:1;font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis; }
  .home-notice button { grid-column:2;grid-row:1/3;padding:7px 11px;font-size:10px; }
  .tool-hub { padding:20px 10px 14px;border-radius:20px; }
  .tool-hub-heading { margin:0 6px 16px;align-items:start; }
  .tool-hub-heading h2 { font-size:23px; }
  .tool-hub-heading p { max-width:105px;text-align:right;font-size:8px;margin-top:8px; }
  .tool-grid { grid-template-columns:repeat(4,minmax(0,1fr));gap:8px; }
  .tool-card { min-height:104px;border-radius:14px;padding:13px 3px 8px;gap:5px; }
  .tool-card:hover { transform:none;box-shadow:none; }
  .tool-card.is-open::after { right:4px;top:4px;font-size:7px;padding:0 4px; }
  .tool-glyph { width:42px;height:42px;font-size:20px; }
  .tool-card strong { font-size:12px; }
  .tool-card small { font-size:7px; }
  .home-learning-card { margin-top:16px;border-radius:20px;padding:25px 20px;display:grid; }
  .home-learning-card h2 { font-size:24px; }
  .home-learning-card p { font-size:11px; }
  .home-learning-card .light-button { width:100%; }
  .page-home + .site-footer { display:none; }
  .developing-page { width:calc(100% - 32px);padding:70px 0; }
  .developing-page h1 { font-size:37px; }
}

/* Prevent the horizontal lesson rail from increasing the mobile grid's min-content width. */
.course-page,.course-layout,.lesson-list,.lesson-content { min-width:0;max-width:100%; }
.course-page { overflow:hidden; }
.course-layout { grid-template-columns:330px minmax(0,1fr); }
@media (max-width:680px) {
  .course-layout { grid-template-columns:minmax(0,1fr); }
  .lesson-list { max-width:100vw; }
  .lesson-list nav { max-width:100%;overflow-x:auto; }
  .principle-diagram { grid-template-columns:minmax(0,1fr); }
  .principle-diagram>div { min-width:0; }
}

/* Real calculation states and traceability panels. */
.field-group select { width:100%;height:50px;border:1px solid var(--line);border-radius:7px;background:#fbfaf6;padding:0 14px;color:var(--ink); }
.field-group select:focus { border-color:var(--jade);outline:3px solid rgba(84,117,104,.1); }
.field-group.invalid select { border-color:var(--danger); }
.request-feedback { margin:0 0 18px;padding:18px 20px;border:1px solid #d9b2ab;background:#fff3f1; }
.request-feedback strong { display:block;color:var(--danger); }
.request-feedback p { margin:6px 0 12px;color:var(--muted); }
.report-empty { min-height:62vh;padding:120px 0; }
.report-empty h1 { font-size:48px;margin:18px 0 10px; }
.report-empty p { color:var(--muted);margin-bottom:28px; }
.trace-grid { display:grid;grid-template-columns:repeat(3,1fr);gap:12px; }
.trace-grid article { border:1px solid var(--line);padding:20px;display:grid;gap:7px; }
.trace-grid span,.trace-grid small { color:var(--muted);font-size:10px; }
.trace-grid strong { font:600 18px var(--serif); }
.assumption-list { margin:25px 0 0;padding-left:20px;color:var(--muted); }
.assumption-list li { margin:8px 0; }
.scenario-grid { display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:24px; }
.scenario-grid article { border:1px solid var(--line);padding:16px;display:grid;gap:6px; }
.scenario-grid article.boundary { border-color:var(--accent);background:#f8efeb; }
.scenario-grid span,.scenario-grid small { color:var(--muted);font-size:10px; }
.scenario-grid strong { font:600 15px var(--serif);letter-spacing:.06em; }
.admin-loading,.admin-error { min-height:260px;display:grid;place-items:center;align-content:center;gap:16px;text-align:center; }
.admin-error p { color:var(--muted); }
.admin-table .admin-task-row { display:grid;grid-template-columns:1.2fr .7fr 1.1fr .8fr .7fr;gap:10px;padding:10px 5px;border-bottom:1px solid #edf0ec;font-size:10px; }
.admin-empty { grid-column:1/-1!important;display:grid!important;grid-template-columns:1fr!important;gap:6px!important;place-items:center;padding:48px 12px!important;text-align:center!important; }
.admin-empty small { color:var(--muted); }
@media (max-width:680px) {
  .trace-grid,.scenario-grid { grid-template-columns:1fr; }
  .report-empty { padding:80px 0; }
  .report-empty h1 { font-size:36px; }
}