@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');
:root{
  color-scheme:light;
  --bg:#ffffff;
  --surface:#fbfbfd;
  --surface-2:#f5f5f7;
  --panel:#ffffff;
  --ink:#1d1d1f;
  --muted:#6e6e73;
  --soft:#86868b;
  --line:#e6e6eb;
  --line-2:#d9d9de;
  --accent:#111111;
  --accent-2:#f5f5f7;
  --success:#2f7d57;
  --warning:#9a6a2f;
  --shadow:0 8px 32px rgba(0,0,0,.06);
  --shadow-lg:0 18px 50px rgba(0,0,0,.08);
  --radius:28px;
  --radius-sm:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  background:var(--bg);
  font:16px/1.72 'Inter',-apple-system,BlinkMacSystemFont,'SF Pro Text','SF Pro Display','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
::selection{background:#dce8ff}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #8ab4f8;outline-offset:2px}
.skip{position:absolute;left:-9999px;top:10px;background:#fff;padding:8px;z-index:50}.skip:focus{left:16px}
header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.82);
  border-bottom:1px solid rgba(230,230,235,.72);
  backdrop-filter:saturate(180%) blur(22px);
}
.nav{max-width:1200px;margin:auto;min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:0 24px}
.brand{font-weight:700;letter-spacing:-.03em;font-size:19px;white-space:nowrap}.brand i{display:inline-block;background:linear-gradient(135deg,#111,#5b5b61);height:14px;width:14px;border-radius:4px;margin-right:10px;vertical-align:middle}
.nav-links{display:flex;align-items:center;gap:14px;font-size:13px;font-weight:500;color:var(--muted);flex-wrap:wrap}
.nav-links a:hover,.textlink:hover{color:var(--ink)}
.nav-cta{background:var(--ink);color:#fff!important;padding:9px 15px;border-radius:999px;box-shadow:0 3px 10px rgba(0,0,0,.12)}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.hero{padding:98px 0 72px;position:relative;overflow:hidden;background:linear-gradient(180deg,#fff 0%,#fff 58%,#fafafc 100%)}
.hero:before{content:'';position:absolute;left:50%;top:-180px;transform:translateX(-50%);width:920px;height:520px;background:radial-gradient(circle,rgba(245,245,247,.92) 0%,rgba(245,245,247,0) 72%);pointer-events:none}
.hero .container{position:relative;z-index:1}
.eyebrow{text-transform:uppercase;letter-spacing:.18em;color:#8e8e93;font-size:12px;font-weight:700}
.hero.centered{text-align:center}
.hero h1,.pagehead h1{font-size:clamp(42px,7vw,92px);letter-spacing:-.065em;line-height:1.03;margin:18px auto 18px;font-weight:800;max-width:980px}
.lead{font-size:clamp(19px,2vw,26px);line-height:1.55;color:var(--muted);max-width:760px;margin:0 auto}
.actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:32px}
.hero.centered .actions,.hero.centered .mini-kpis,.hero.centered .hero-note{justify-content:center}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--ink);background:var(--ink);color:#fff;border-radius:999px;padding:13px 24px;font-weight:600;font-size:14px;min-height:46px;transition:transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease}
.btn.alt{color:var(--ink);background:#fff;border-color:var(--line-2)}
.btn.soft{color:var(--ink);background:var(--surface-2);border-color:transparent}
.btn:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(0,0,0,.08)}
.tiny{font-size:12px;color:var(--soft)}
.hero-note{margin-top:18px}
.mini-kpis{display:flex;flex-wrap:wrap;gap:12px;margin-top:42px}
.mini-kpi{min-width:152px;background:rgba(255,255,255,.74);border:1px solid rgba(230,230,235,.9);border-radius:22px;padding:16px 18px;box-shadow:0 6px 22px rgba(0,0,0,.04)}
.mini-kpi strong{display:block;font-size:28px;line-height:1;letter-spacing:-.05em;margin-bottom:6px}
.mini-kpi span{font-size:12px;color:var(--muted)}
.section{padding:88px 0}
.section.alt{background:var(--surface)}
.section h2,.hero-cluster h2{font-size:clamp(32px,4vw,64px);line-height:1.08;letter-spacing:-.055em;margin:8px 0 16px}
.section.centered{text-align:center}
.section p.intro{color:var(--muted);max-width:760px;font-size:18px;margin:0}
.section.centered p.intro{margin:0 auto}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.grid.tight{gap:14px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:28px;padding:28px;box-shadow:var(--shadow);transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}
.card:hover{transform:translateY(-2px);border-color:#cfcfd6;box-shadow:var(--shadow-lg)}
.card .number{font-size:12px;color:#8e8e93;font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.card h3{font-size:24px;letter-spacing:-.04em;line-height:1.25;margin:12px 0 10px}.card p{color:var(--muted);font-size:15px;margin:0}.card .more{display:block;margin-top:18px;font-size:14px;color:var(--ink);font-weight:600}
.panel{border:1px solid var(--line);background:var(--panel);border-radius:32px;padding:32px;box-shadow:var(--shadow)}
.panel.soft{background:var(--surface);box-shadow:none}
.pagehead{padding:60px 0 30px}.pagehead p{color:var(--muted);max-width:760px;font-size:18px}
.toolbar{display:flex;gap:12px;flex-wrap:wrap;margin:16px 0 28px}
.input,select,textarea{background:#fff;color:var(--ink);border:1px solid var(--line-2);border-radius:14px;padding:12px 14px;max-width:100%;min-height:46px}.input{min-width:280px;flex:1}
.chips{display:flex;gap:9px;flex-wrap:wrap}.chip{padding:7px 13px;background:var(--surface-2);color:#4a4a51;border-radius:999px;font-size:12px;font-weight:600}
.reading{max-width:860px}.reading h2{font-size:28px;letter-spacing:-.04em;margin-top:40px}.reading ol{padding-left:23px}.reading li{padding:6px 0}.reading .answer{background:#f5faf7;border-left:4px solid var(--success);border-radius:0 14px 14px 0;padding:16px 20px}.reading .failure{background:#fbf7f1;border-left:4px solid var(--warning);border-radius:0 14px 14px 0;padding:16px 20px}
.crumbs{font-size:12px;color:var(--muted)}.crumbs a{text-decoration:underline}.lesson-meta{display:flex;gap:10px;margin:22px 0;flex-wrap:wrap}.muted{color:var(--muted)}.row{display:flex;justify-content:space-between;align-items:center;gap:16px}.progressbar{height:9px;background:#ededf0;border-radius:999px;overflow:hidden}.progressbar i{display:block;background:var(--ink);height:100%;width:0;transition:width .25s}.day{display:flex;gap:16px;align-items:start;border-bottom:1px solid var(--line);padding:18px 0}.day input{accent-color:var(--ink);width:20px;height:20px;margin-top:6px}.day strong{font-size:17px}.day p{color:var(--muted);font-size:13px;margin:2px 0}.tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}label.field{display:block;color:#55555c;font-size:13px;font-weight:600;margin-bottom:6px}.formgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.formgrid>div{display:flex;flex-direction:column}.full{grid-column:1/-1}pre{font-size:13px;line-height:1.6;white-space:pre-wrap;word-break:break-word;overflow:auto;padding:22px;border-radius:18px;background:#101113;color:#f5f5f7;max-height:430px}.md-article{font-size:15px;line-height:1.85}.md-article h2{font-size:24px;margin-top:34px}.md-article h3{font-size:19px;margin-top:24px}.md-article code:not(pre code){font-size:.91em;background:#f2f2f5;padding:2px 5px;border-radius:4px}.md-article .item-line{margin:5px 0 5px 7px}.md-article p{overflow-wrap:anywhere}.fileblock{margin:18px 0 28px}.fileblock h3{margin-bottom:8px}.source{display:block;border-bottom:1px solid var(--line);padding:16px 0}.source a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}.source span{display:block;color:var(--muted);font-size:13px}.notice{background:#f5f7fb;border:1px solid #dde3ef;padding:18px 20px;border-radius:18px;margin:22px 0;color:#3e4a5d}.warn{background:#fff8ef;border:1px solid #f0dcc0;padding:15px 20px;border-radius:16px;font-size:14px}footer{border-top:1px solid var(--line);padding:48px 0;margin-top:72px;color:var(--muted);font-size:13px;background:#fff}footer .row{align-items:flex-start}.footerlinks{display:flex;gap:16px;flex-wrap:wrap}.footerlinks a{text-decoration:underline}textarea{width:100%;min-height:88px}.hide{display:none!important}.kpi{font-size:35px;font-weight:750;line-height:1.2;letter-spacing:-.04em}.tablewrap{overflow-x:auto}table{width:100%;border-collapse:collapse;min-width:500px}th,td{padding:12px;border-bottom:1px solid var(--line);text-align:left;font-size:13px}th{color:#515159}.checklist label{display:block;padding:9px 0}input[type=checkbox]{accent-color:var(--ink)}.mobile-cta{display:none}
.hero-shell{margin-top:54px;background:linear-gradient(180deg,#fff 0%,#fafafc 100%);border:1px solid var(--line);border-radius:40px;padding:30px;box-shadow:var(--shadow-lg)}
.hero-shell-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px;align-items:stretch}
.hero-stack{display:grid;gap:16px}
.hero-card{background:#fff;border:1px solid var(--line);border-radius:26px;padding:24px;box-shadow:var(--shadow)}
.hero-card .label{font-size:11px;text-transform:uppercase;letter-spacing:.16em;color:#8e8e93;font-weight:700;margin-bottom:10px;display:block}
.hero-card .big{font-size:48px;line-height:1;letter-spacing:-.06em;font-weight:800;margin:0 0 10px}
.hero-card p{margin:0;color:var(--muted);font-size:15px}
.feature-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-top:28px}
.feature-pill{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:var(--shadow)}
.feature-pill h3{font-size:16px;letter-spacing:-.02em;margin:10px 0 6px}.feature-pill p{margin:0;color:var(--muted);font-size:13px}
.center-copy{max-width:840px;margin:0 auto;text-align:center}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:22px;align-items:center}
.quote-panel{padding:42px;border-radius:34px;background:linear-gradient(180deg,#fff 0%,#fafafc 100%);border:1px solid var(--line);box-shadow:var(--shadow)}
.quote-panel .mega{font-size:clamp(28px,3.5vw,48px);line-height:1.12;letter-spacing:-.05em;margin:0 0 14px;font-weight:700}
.quote-panel p{margin:0;color:var(--muted);font-size:18px}
.list-clean{display:grid;gap:14px}.list-clean .item{padding:18px 0;border-bottom:1px solid var(--line)}.list-clean .item:last-child{border-bottom:0}.list-clean strong{display:block;font-size:18px;letter-spacing:-.03em;margin-bottom:4px}.list-clean span{display:block;color:var(--muted);font-size:14px}
.cta-band{padding:48px;border-radius:36px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-lg);text-align:center}
.cta-band h2{margin-top:6px}
.badge-row{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:18px}
.badge{background:var(--surface-2);border:1px solid var(--line);border-radius:999px;padding:8px 12px;color:#4b4b50;font-size:12px;font-weight:600}
@media(max-width:980px){.feature-grid{grid-template-columns:repeat(2,1fr)}.hero-shell-grid,.split{grid-template-columns:1fr}.nav-links a:nth-child(n+7):not(:last-child){display:none}.grid{grid-template-columns:repeat(2,1fr)}.tool-grid{grid-template-columns:1fr}}
@media(max-width:640px){.container{padding:0 20px}.nav{padding:0 16px;min-height:58px}.brand{font-size:17px}.nav-links{gap:10px;font-size:12px}.nav-links a:not(:nth-child(1)):not(:nth-child(2)):not(:last-child){display:none}.hero{padding:76px 0 56px}.hero h1,.pagehead h1{font-size:42px}.section{padding:58px 0}.grid,.feature-grid{grid-template-columns:1fr}.card,.panel,.hero-card,.quote-panel,.cta-band{padding:24px}.hero-shell{padding:18px;border-radius:28px;margin-top:36px}.mini-kpis{gap:10px}.mini-kpi{min-width:calc(50% - 5px)}.formgrid{grid-template-columns:1fr}.row{align-items:flex-start}.pagehead{padding-top:38px}.mobile-cta{display:block;position:fixed;bottom:12px;left:12px;right:12px;z-index:19;background:var(--ink);color:#fff;border-radius:16px;text-align:center;padding:12px;font-size:13px;box-shadow:var(--shadow-lg)}footer{padding-bottom:96px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

/* Compatibility with existing V2 generated pages: keep the white visual system consistent. */
:root{--green:#1d1d1f;--paper:#ffffff;--white:#ffffff;--cream:#f5f5f7;--accent:#e6e6eb}
.dark{background:#f5f5f7;color:#1d1d1f;border:1px solid var(--line);border-radius:30px;padding:40px}
.dark h2{font-size:clamp(28px,4vw,44px);line-height:1.17;letter-spacing:-.04em}
.dark p{color:#6e6e73}
.dark .eyebrow{color:#77777d!important}
.dark a.btn.alt{color:#1d1d1f!important;border-color:#d2d2d7!important;background:#fff!important}
.dark a.btn:not(.alt){background:#1d1d1f!important;color:#fff!important;border-color:#1d1d1f!important}
.statbar{display:flex;gap:36px;flex-wrap:wrap;margin-top:40px;padding:24px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat strong{display:block;font-size:29px;line-height:1.2;letter-spacing:-.04em}.stat span{color:var(--muted);font-size:13px}
@media(max-width:640px){.statbar{gap:20px}.dark{padding:24px}.hero-card .big{font-size:clamp(26px,7vw,40px)}.hero.centered .lead{line-height:1.55}}