:root{--bg:#070b14;--ink:#e7ecf5;--muted:#a8b4c8;--paper:#f3efe7;--card:#fbf8f2;--text:#17140f;--secondary:#57534e;--blue:#1d4ed8;--line:rgba(23,20,15,.14)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline;text-underline-offset:5px}button,input,select{font:inherit}a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #60a5fa;outline-offset:4px}img{max-width:100%}.wrap{max-width:1180px;margin:auto;padding:0 28px}.skip{position:absolute;left:20px;top:-100px;background:white;color:black;padding:12px;z-index:100}.skip:focus{top:10px}nav{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px max(28px,calc((100vw - 1124px)/2));border-bottom:1px solid #243044;background:#070b14f2;position:sticky;top:0;z-index:10}.logo{display:flex}.logo img{width:138px;height:40px;object-fit:contain}.nav-links{display:flex;gap:28px;color:#c7d2e4;font-size:14px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:.12em;color:#8bb9ff;margin:0 0 18px}.hero{padding-top:76px;padding-bottom:48px}.hero h1{font-size:clamp(36px,4.4vw,58px);line-height:1.23;letter-spacing:-.035em;margin:0 0 24px;font-weight:650}.hero h1 span{color:#9ebeff}.intro{font-size:18px;color:var(--muted);max-width:680px}.hero-links{display:flex;gap:28px;flex-wrap:wrap;font-size:14px;color:#bdcbe1;margin-top:28px}.hero-links a{color:#b6d0ff}.featured{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;padding-bottom:56px}.feature{display:block;position:relative;min-height:270px;border:1px solid #2d3b58;border-radius:18px;padding:30px;background:linear-gradient(125deg,#13213d,#0b1220 80%)}.feature:hover{border-color:#7eabef;text-decoration:none}.feature h2{font-size:25px;line-height:1.45;margin:16px 0}.feature p{color:#b3bed0;font-size:14px}.read{display:block;margin-top:22px;color:#a4c9ff;font-size:14px}.paper{background:var(--paper);color:var(--text)}.library{padding-top:56px;padding-bottom:72px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:24px}.section-heading h2{font-size:28px;letter-spacing:-.02em;margin:0}.paper .eyebrow{color:var(--blue)}#result-count{white-space:nowrap;font-size:14px;color:var(--secondary)}.filters{display:grid;grid-template-columns:2fr 1fr 1fr;gap:16px;margin:28px 0 32px}.filters label{display:flex;flex-direction:column;gap:8px;font-size:13px;font-weight:600;color:var(--secondary)}.filters input,.filters select{width:100%;min-width:0;border:1px solid #c7c1b8;background:var(--card);color:var(--text);padding:12px 14px;border-radius:9px;font-size:15px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.card{display:flex;flex-direction:column;min-width:0;min-height:280px;padding:25px;background:var(--card);border:1px solid var(--line);border-radius:14px;transition:box-shadow .15s,border-color .15s}.card:hover{text-decoration:none;border-color:#7899d5;box-shadow:0 8px 24px #1d4ed80c}.card .tag{color:var(--blue);font-size:12px;font-weight:600}.card h3{font-size:20px;line-height:1.5;margin:16px 0 12px;overflow-wrap:anywhere}.card p{color:var(--secondary);font-size:14px;line-height:1.7;margin:0 0 24px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.card-bottom{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);font-size:12px;color:var(--secondary);display:flex;justify-content:space-between}.card-bottom span{color:var(--blue);font-size:18px}[hidden]{display:none!important}#empty{padding:48px 0;text-align:center;color:var(--secondary)}.article-head{padding-top:42px;padding-bottom:48px}.back{color:#b8c7dd;font-size:14px;display:inline-block;margin-bottom:30px}.article-head h1{font-size:clamp(30px,3.4vw,46px);line-height:1.32;max-width:930px;letter-spacing:-.02em;margin:0 0 24px;overflow-wrap:anywhere}.meta{font-size:13px;color:var(--muted);margin-bottom:24px}.btn{display:inline-flex;background:linear-gradient(100deg,#1d4ed8,#2563eb);color:white;font-size:14px;font-weight:600;padding:12px 23px;border-radius:99px;white-space:nowrap}.btn:hover{background:#1d4ed8}.article-layout{display:grid;grid-template-columns:210px minmax(0,780px);gap:64px;padding-top:52px;padding-bottom:70px;align-items:start}.article-layout aside{position:sticky;top:105px;font-size:13px;max-height:75vh;overflow:auto;padding:2px}.article-layout aside strong{display:block;margin-bottom:14px}.article-layout aside a{display:block;color:var(--secondary);padding:6px 0}.prose{min-width:0;overflow-wrap:anywhere;font-size:17px;line-height:1.95}.prose h2{font-size:26px;line-height:1.4;margin:44px 0 18px;scroll-margin-top:100px}.prose>h2:first-child{margin-top:0}.prose h3{font-size:20px;line-height:1.5;margin-top:30px;scroll-margin-top:100px}.prose p{margin:0 0 20px}.prose a{color:var(--blue);text-decoration:underline;text-underline-offset:4px}.prose li{margin:7px 0}.prose ul,.prose ol{padding-left:24px}.prose blockquote{margin:24px 0;border-left:3px solid #2563eb;padding:15px 20px;background:#e8e6e0;color:#4f4c46}.prose blockquote p:last-child{margin:0}.prose pre{overflow:auto;padding:18px;background:#e6e3dc;border-radius:8px;font-size:13px;line-height:1.65}.prose code{font-size:.88em}.table-scroll{overflow:auto;max-width:100%;margin:24px 0}.prose table{border-collapse:collapse;width:100%;font-size:14px;line-height:1.65}.prose th,.prose td{border:1px solid #cec9c0;padding:12px;min-width:100px;text-align:left;vertical-align:top}.prose th{background:#e5e2da}.prose hr{border:0;border-top:1px solid var(--line);margin:36px 0}.article-note{margin-top:36px;padding:18px 0;border-top:1px solid var(--line);font-size:13px;color:var(--secondary)}.related-card{display:flex;justify-content:space-between;gap:18px;background:var(--card);border:1px solid var(--line);padding:17px 20px;margin-bottom:10px;border-radius:8px;font-size:15px}.cta{padding-top:55px;padding-bottom:55px;display:flex;justify-content:space-between;align-items:center;gap:30px}.cta h2{font-size:27px;line-height:1.4;margin:0}.cta .eyebrow{margin-bottom:12px}footer{border-top:1px solid #253149;padding:40px 0;color:#b5c1d3;font-size:13px}footer strong{color:#e7ecf5;font-size:16px}.footer-links{display:flex;gap:24px;flex-wrap:wrap}footer p{margin:10px 0 24px}@media(max-width:850px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-layout{grid-template-columns:minmax(0,1fr);gap:25px}.article-layout aside{position:static;max-height:none;border-bottom:1px solid var(--line);padding-bottom:20px}.article-layout aside a{display:inline-block;margin-right:16px}.filters{grid-template-columns:2fr 1fr}.filters label:last-child{grid-column:1/-1}.cta{align-items:start;flex-direction:column}}@media(max-width:560px){.wrap{padding-left:20px;padding-right:20px}nav{padding:12px 20px;gap:12px}.logo img{width:116px;height:34px}.nav-links{gap:16px;font-size:13px}.hero{padding-top:48px;padding-bottom:32px}.hero h1{font-size:34px}.intro{font-size:16px}.featured{grid-template-columns:minmax(0,1fr);gap:14px;padding-bottom:36px}.feature{min-height:0;padding:24px}.feature h2{font-size:22px}.grid{grid-template-columns:minmax(0,1fr)}.card{min-height:230px}.section-heading{align-items:start}.section-heading h2{font-size:24px}.filters{grid-template-columns:minmax(0,1fr);gap:12px}.filters label:last-child{grid-column:auto}.article-head{padding-top:28px;padding-bottom:32px}.article-head h1{font-size:30px}.article-layout{padding-top:30px;padding-bottom:40px}.prose{font-size:16px}.prose h2{font-size:23px}.library{padding-top:36px;padding-bottom:40px}.footer-links{gap:14px 20px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

.hero h1{text-wrap:balance}

/* === Winin Blog Topic System === */
/* Deep blue hero + light paper reading area */

.topic-hero {
  background-color: #0a1628;
  color: #f0f2f5;
  padding: 4rem 1.5rem 3.5rem;
  text-align: left;
  max-width: 100%;
}
.topic-hero h1 {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 700;
  line-height: 1.35;
  margin: 0 0 1rem;
  color: #ffffff;
}
.topic-hero p {
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  line-height: 1.7;
  color: #b0bec5;
  max-width: 42em;
  margin: 0;
}

/* Topic grid */
.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  padding: 2.5rem 1.5rem;
  max-width: 72rem;
  margin: 0 auto;
}
@media (max-width: 375px) {
  .topic-grid {
    grid-template-columns: 1fr;
    padding: 1.5rem 1rem;
    gap: 1rem;
  }
}

/* Topic card */
.topic-card {
  background: #fafaf8;
  border: 1px solid #e8e6e1;
  border-radius: 6px;
  padding: 1.75rem 1.5rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.topic-card:hover {
  border-color: #1a56db;
  box-shadow: 0 2px 12px rgba(26, 86, 219, 0.08);
}

.topic-num {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: #1a56db;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.topic-question {
  font-size: 1.05rem;
  font-weight: 600;
  color: #1a1a1a;
  line-height: 1.45;
  margin: 0 0 0.6rem;
}

.topic-link {
  display: inline-block;
  font-size: 0.875rem;
  color: #1a56db;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s;
}
.topic-link:hover {
  border-bottom-color: #1a56db;
}

/* Reading path */
.reading-path {
  background: #f5f5f2;
  padding: 2.5rem 1.5rem;
  max-width: 100%;
}
.reading-path h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #0a1628;
  margin: 0 0 1.5rem;
  max-width: 72rem;
  margin-left: auto;
  margin-right: auto;
}

.path-step {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  max-width: 72rem;
  margin: 0 auto 1.25rem;
  padding: 0;
}
.path-step::before {
  content: attr(data-step);
  flex-shrink: 0;
  width: 1.75rem;
  height: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #1a56db;
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 50%;
  margin-top: 0.1rem;
}
.path-step span {
  font-size: 0.95rem;
  color: #2d2d2d;
  line-height: 1.6;
}

/* Pillar card for deep-dives section */
.pillar-card {
  background: #ffffff;
  border-left: 3px solid #1a56db;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
  max-width: 72rem;
}
.pillar-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: #1a1a1a;
  margin: 0 0 0.4rem;
}
.pillar-card p {
  font-size: 0.875rem;
  color: #555;
  line-height: 1.6;
  margin: 0;
}

/* Responsive 375px adjustments */
@media (max-width: 375px) {
  .topic-hero {
    padding: 2.5rem 1rem 2rem;
  }
  .topic-hero h1 {
    font-size: 1.35rem;
  }
  .topic-card {
    padding: 1.25rem 1rem;
  }
  .path-step {
    gap: 0.75rem;
  }
  .pillar-card {
    padding: 1rem 1rem;
    margin-left: 0.5rem;
    margin-right: 0.5rem;
  }
}
.topic-section{padding-top:54px;padding-bottom:64px}.topic-section>h2{font-size:30px;line-height:1.4;margin:0 0 28px;letter-spacing:-.025em}.topic-grid{padding:0;grid-template-columns:repeat(3,minmax(0,1fr));max-width:none;gap:20px}.topic-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:28px;display:flex;flex-direction:column;min-width:0}.topic-card:hover{text-decoration:none}.topic-card .eyebrow{color:var(--blue);font-size:12px;margin-bottom:20px}.topic-card .topic-question{font-size:23px;line-height:1.45;margin-bottom:15px;letter-spacing:-.02em}.topic-card>p:not(.eyebrow){font-size:15px;color:var(--secondary);margin:0 0 24px}.topic-card .topic-link{margin-top:auto;color:var(--blue)}.reading-path{padding:44px 0;background:#e8e4dc;color:var(--text)}.reading-path h2{font-size:25px;margin-bottom:25px}.path-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}.path-step{margin:0;padding-left:18px;border-left:2px solid #a0b8df}.path-step::before{display:none}.path-step h3{font-size:17px;margin:0 0 12px}.path-step p{font-size:14px;color:#1d4ed8;margin:0}.pillar-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.pillar-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-left:3px solid var(--blue);padding:28px;border-radius:8px;margin:0;min-width:0}.pillar-card:hover{text-decoration:none;border-color:#7b9fdb}.pillar-card .tag{color:var(--blue);font-size:12px}.pillar-card h3{font-size:23px;line-height:1.45;margin:14px 0}.pillar-card p{color:var(--secondary);font-size:15px;line-height:1.8;margin:0 0 20px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.read-link{color:var(--blue);font-size:14px;margin-top:auto}.more-heading{margin-top:48px!important}.topic-section .card .read-link{padding-top:18px}.topic-section .grid .card{min-height:265px}.article-head .back{margin-bottom:24px}@media(max-width:900px){.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.path-grid{grid-template-columns:minmax(0,1fr);gap:22px}}@media(max-width:600px){.topic-grid,.pillar-grid{grid-template-columns:minmax(0,1fr);padding:0}.topic-section{padding-top:36px;padding-bottom:40px}.topic-section>h2{font-size:25px}.topic-card,.pillar-card{padding:23px;margin:0}.topic-card .topic-question,.pillar-card h3{font-size:22px}.reading-path{padding:34px 0}.hero h1{font-size:34px}.topic-section .grid .card{min-height:230px}}