/* ===== Reset & Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --navy-900: #0a1628;
  --navy-800: #0f2140;
  --navy-700: #152d50;
  --navy-600: #1a3a66;
  --gold-500: #c9a84c;
  --gold-400: #d4b85e;
  --gold-300: #e0ca7e;
  --gray-50: #f8f9fb;
  --gray-100: #f0f2f5;
  --gray-200: #e2e5ea;
  --gray-400: #9ba3af;
  --gray-600: #5a6270;
  --gray-800: #2d3239;
  --white: #ffffff;
  --font-serif: 'Noto Serif SC', 'Songti SC', 'SimSun', serif;
  --font-sans: 'Noto Sans SC', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(201, 168, 76, 0.15);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--white);
}

.nav-logo {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--gold-500), var(--gold-300));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 18px;
  color: var(--navy-900);
}

.nav-title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  font-size: 15px;
  font-weight: 400;
  transition: color 0.2s;
  letter-spacing: 0.01em;
}

.nav-links a:hover { color: var(--gold-400); }

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  margin: 5px 0;
  transition: 0.3s;
}

.nav-back {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

.nav-back:hover { color: var(--gold-400); }

/* ===== Home Hero ===== */
.hero {
  background: linear-gradient(165deg, var(--navy-900) 0%, var(--navy-800) 40%, var(--navy-700) 100%);
  padding: 10rem 2rem 6rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 200%;
  background: radial-gradient(ellipse, rgba(201, 168, 76, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-500), transparent);
  opacity: 0.3;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  border: 1px solid rgba(201, 168, 76, 0.4);
  border-radius: 100px;
  color: var(--gold-400);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 2rem;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.3;
  margin-bottom: 1.5rem;
  max-width: 700px;
}

.hero h1 .gold { color: var(--gold-400); }

.hero-desc {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.65);
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-stat-num {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold-400);
  line-height: 1;
}

.hero-stat-label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 0.5rem;
}

/* ===== Section Common ===== */
.section {
  padding: 5rem 2rem;
}

.section-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--gold-500);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--navy-900);
  line-height: 1.3;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--gray-600);
  margin-top: 0.75rem;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== About ===== */
.about {
  background: var(--gray-50);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.about-card {
  background: var(--white);
  border-radius: 12px;
  padding: 2.5rem 2rem;
  border: 1px solid var(--gray-200);
  transition: transform 0.2s, box-shadow 0.2s;
}

.about-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(10, 22, 40, 0.08);
}

.about-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--navy-800), var(--navy-700));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 22px;
}

.about-card h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--navy-900);
  margin-bottom: 0.75rem;
}

.about-card p {
  font-size: 0.9375rem;
  color: var(--gray-600);
  line-height: 1.7;
}

/* ===== WeChat Follow ===== */
.wechat-follow {
  background: var(--gray-50);
}

.wechat-qr-wrap {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
}

.wechat-qr {
  max-width: 560px;
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 4px 24px rgba(10, 22, 40, 0.08);
}

/* ===== Articles Grid & Card ===== */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.article-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 1.75rem;
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}

.article-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(10, 22, 40, 0.07);
}

.article-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: rgba(201, 168, 76, 0.1);
  color: var(--gold-500);
  font-size: 12px;
  font-weight: 600;
  border-radius: 100px;
  margin-bottom: 0.75rem;
  letter-spacing: 0.03em;
  width: fit-content;
}

.article-card h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy-900);
  line-height: 1.5;
  margin-bottom: 0.5rem;
}

.article-card p {
  font-size: 0.875rem;
  color: var(--gray-600);
  line-height: 1.7;
  flex: 1;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1.25rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--gray-100);
  font-size: 0.8125rem;
  color: var(--gray-400);
}

/* Home featured grid: larger cards */
.section .articles-grid { gap: 2rem; }
.section .article-card { padding: 2rem; }
.section .article-card h3 { font-size: 1.15rem; margin-bottom: 0.75rem; }
.section .article-card p { font-size: 0.9375rem; }
.section .article-meta { gap: 1rem; margin-top: 1.5rem; padding-top: 1rem; }

.view-all {
  text-align: center;
  margin-top: 2.5rem;
}

.view-all a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--gold-500);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  transition: gap 0.2s;
}

.view-all a:hover { gap: 0.7rem; }

/* ===== Articles List Page ===== */
.page-hero {
  background: linear-gradient(165deg, var(--navy-900), var(--navy-800));
  padding: 6rem 2rem 3rem;
}

.page-hero-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.page-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.page-hero p {
  color: rgba(255,255,255,0.5);
  font-size: 0.9375rem;
}

.category-section {
  padding: 3rem 2rem 1rem;
}

.category-section:first-of-type {
  padding-top: 2.5rem;
}

.category-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.category-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.category-label h2 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--navy-900);
}

.category-label .count {
  font-size: 0.8125rem;
  color: var(--gray-400);
  font-weight: 400;
}

.category-label .line {
  flex: 1;
  height: 1px;
  background: var(--gray-200);
}

/* ===== Article Page Hero ===== */
.article-hero {
  background: linear-gradient(165deg, var(--navy-900), var(--navy-800));
  padding: 7rem 2rem 3.5rem;
}

.article-hero-inner {
  max-width: 760px;
  margin: 0 auto;
}

.article-hero .article-tag {
  display: inline-block;
  padding: 0.3rem 0.85rem;
  background: rgba(201, 168, 76, 0.15);
  color: var(--gold-400);
  font-size: 12px;
  font-weight: 600;
  border-radius: 100px;
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}

.article-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.4;
  margin-bottom: 1.5rem;
}

.article-hero .article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: rgba(255,255,255,0.45);
  font-size: 0.875rem;
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.article-hero .article-meta .dot {
  width: 3px; height: 3px;
  background: rgba(255,255,255,0.3);
  border-radius: 50%;
}

/* ===== CTA / Thingswork ===== */
.cta-section {
  background: linear-gradient(165deg, var(--navy-900) 0%, var(--navy-800) 100%);
  padding: 5rem 2rem;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-500), transparent);
  opacity: 0.3;
}

.cta-inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-inner .section-label { color: var(--gold-400); }

.cta-inner h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1rem;
}

.cta-inner p {
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.8;
  margin-bottom: 2.5rem;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2.5rem;
  background: linear-gradient(135deg, var(--gold-500), var(--gold-400));
  color: var(--navy-900);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  letter-spacing: 0.02em;
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201, 168, 76, 0.3);
}

.cta-btn svg {
  width: 18px;
  height: 18px;
  transition: transform 0.2s;
}

.cta-btn:hover svg {
  transform: translateX(3px);
}

.cta-features {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  margin-top: 3rem;
}

.cta-feature {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
}

.cta-feature-dot {
  width: 6px;
  height: 6px;
  background: var(--gold-500);
  border-radius: 50%;
}

/* ===== 404 ===== */
.error-hero {
  background: linear-gradient(165deg, var(--navy-900), var(--navy-800));
  padding: 12rem 2rem 8rem;
  text-align: center;
}

.error-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 700;
  color: var(--gold-400);
  margin-bottom: 1rem;
}

.error-hero p {
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 2.5rem;
}

.error-hero .cta-btn {
  padding: 0.85rem 2rem;
}

/* ===== Footer ===== */
.footer {
  background: var(--navy-900);
  padding: 3rem 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer-logo {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--gold-500), var(--gold-300));
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 15px;
  color: var(--navy-900);
}

.footer-name {
  font-family: var(--font-serif);
  font-size: 16px;
  color: rgba(255, 255, 255, 0.7);
}

.footer-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.4);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s;
}

.footer-links a:hover { color: var(--gold-400); }

.footer-copy {
  color: rgba(255, 255, 255, 0.25);
  font-size: 0.8125rem;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-mobile-toggle { display: block; }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--navy-900);
    padding: 1.5rem 2rem;
    gap: 1rem;
    border-bottom: 1px solid rgba(201, 168, 76, 0.15);
  }

  .hero { padding: 8rem 1.5rem 4rem; }
  .hero-stats { gap: 1.5rem; flex-wrap: wrap; }
  .section { padding: 3.5rem 1.5rem; }
  .about-grid { grid-template-columns: 1fr; }
  .articles-grid { grid-template-columns: 1fr; }
  .cta-features { flex-direction: column; gap: 1rem; align-items: center; }
  .footer-inner { flex-direction: column; gap: 1.5rem; text-align: center; }
  .wechat-qr { max-width: 100%; }

  .page-hero { padding: 5rem 1.5rem 2rem; }
  .category-section { padding: 2rem 1.5rem 0.5rem; }
  .article-hero { padding: 5.5rem 1.5rem 2.5rem; }
  .article-hero .article-meta { flex-wrap: wrap; gap: 0.5rem; }
}

/* ===== Animations ===== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
/* 由 9 篇文章的内联样式自动合并生成（tools/merge_css.py），请勿手改 */

* { margin: 0; padding: 0; box-sizing: border-box; }
*::after { margin: 0; padding: 0; box-sizing: border-box; }
*::before { margin: 0; padding: 0; box-sizing: border-box; }
.article-body { max-width: 760px;
      margin: 0 auto;
      padding: 3rem 2rem 5rem; }
.article-body .action-list { margin: 1.5rem 0;
      padding-left: 0;
      list-style: none;
      counter-reset: action; }
.article-body .action-list .action-title { font-family: var(--font-serif);
      font-size: 1.1rem;
      font-weight: 600;
      color: var(--navy-900);
      margin-bottom: 0.5rem; }
.article-body .action-list li { counter-increment: action;
      padding: 1.25rem 0 1.25rem 3.5rem;
      position: relative;
      border-bottom: 1px solid var(--gray-100); }
.article-body .action-list li::before { content: counter(action);
      position: absolute;
      left: 0;
      top: 1.15rem;
      width: 32px;
      height: 32px;
      background: var(--navy-900);
      color: var(--gold-400);
      font-family: var(--font-serif);
      font-weight: 700;
      font-size: 1rem;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center; }
.article-body .action-list li:last-child { border-bottom: none; }
.article-body .action-list p { margin-bottom: 0;
      font-size: 1rem; }
.article-body .article-img { width: 100%;
      border-radius: 10px;
      margin: 2rem 0;
      box-shadow: 0 2px 16px rgba(10, 22, 40, 0.06); }
.article-body .boundary-list { margin: 1.5rem 0;
      padding-left: 0;
      list-style: none; }
.article-body .boundary-list .boundary-title { font-weight: 600;
      color: var(--navy-900); }
.article-body .boundary-list li { padding: 0.75rem 0 0.75rem 1.5rem;
      position: relative;
      font-size: 1rem;
      line-height: 1.7;
      border-bottom: 1px solid var(--gray-100); }
.article-body .boundary-list li::before { content: '';
      position: absolute;
      left: 0;
      top: 1.1rem;
      width: 6px;
      height: 6px;
      background: var(--gold-500);
      border-radius: 50%; }
.article-body .boundary-list li:last-child { border-bottom: none; }
.article-body .case-block { background: var(--gray-50);
      border-radius: 12px;
      padding: 1.75rem;
      margin: 2rem 0; }
.article-body .case-block .case-file { font-size: 0.9375rem;
      color: var(--gray-600);
      margin-bottom: 1rem; }
.article-body .case-block .cost { font-size: 0.875rem;
      color: var(--gray-600);
      margin-top: 0.5rem; }
.article-body .case-block .difficulty { display: flex;
      gap: 0.5rem;
      flex-wrap: wrap;
      margin: 0.75rem 0; }
.article-body .case-block .difficulty span { font-size: 0.875rem;
      color: var(--gray-600); }
.article-body .case-block .metric-item { font-size: 0.875rem; }
.article-body .case-block .metric-item strong { color: var(--navy-900); }
.article-body .case-block .metrics { display: flex;
      gap: 1.5rem;
      flex-wrap: wrap;
      margin: 0.75rem 0;
      padding: 0.75rem;
      background: var(--white);
      border-radius: 8px; }
.article-body .case-block .result-list { list-style: none;
      padding: 0;
      margin: 0.75rem 0; }
.article-body .case-block .result-list li { padding: 0.3rem 0;
      font-size: 0.9375rem; }
.article-body .case-block .result-list li::before { content: '✅ '; }
.article-body .case-block h3 { font-family: var(--font-serif);
      font-size: 1.1rem;
      font-weight: 600;
      color: var(--navy-900);
      margin-bottom: 1rem; }
.article-body .case-block img { width: 100%;
      border-radius: 8px;
      margin: 1rem 0; }
.article-body .change-list { margin: 1rem 0;
      padding-left: 0;
      list-style: none; }
.article-body .change-list .arrow { color: var(--gold-500);
      margin: 0 0.5rem; }
.article-body .change-list .new { color: var(--navy-900);
      font-weight: 600; }
.article-body .change-list .old { color: var(--gray-400);
      text-decoration: line-through; }
.article-body .change-list li { padding: 0.5rem 0;
      font-size: 0.9375rem;
      border-bottom: 1px solid var(--gray-100); }
.article-body .change-list li:last-child { border-bottom: none; }
.article-body .closing-block { background: linear-gradient(135deg, var(--navy-900), var(--navy-800));
      border-radius: 12px;
      padding: 2rem;
      margin: 2.5rem 0;
      text-align: center; }
.article-body .closing-block p { color: rgba(255,255,255,0.85);
      font-family: var(--font-serif);
      font-size: 1.1rem;
      line-height: 1.8;
      margin-bottom: 0; }
.article-body .closing-block strong { color: var(--gold-400); }
.article-body .compare-list { margin: 1.5rem 0;
      padding-left: 0;
      list-style: none; }
.article-body .compare-list li { padding: 0.75rem 0 0.75rem 1.5rem;
      position: relative;
      font-size: 1rem;
      line-height: 1.7;
      border-bottom: 1px solid var(--gray-100); }
.article-body .compare-list li::before { content: '';
      position: absolute;
      left: 0;
      top: 1.1rem;
      width: 6px;
      height: 6px;
      background: var(--gold-500);
      border-radius: 50%; }
.article-body .compare-list li:last-child { border-bottom: none; }
.article-body .comparison-table { width: 100%;
      border-collapse: collapse;
      margin: 1.5rem 0;
      font-size: 0.9375rem; }
.article-body .comparison-table td { padding: 0.75rem 1rem;
      border: 1px solid var(--gray-200);
      text-align: center; }
.article-body .comparison-table th { background: var(--navy-900);
      color: var(--white);
      font-weight: 600;
      font-size: 0.875rem; }
.article-body .comparison-table tr:nth-child(even) { background: var(--gray-50); }
.article-body .data-table { width: 100%;
      border-collapse: collapse;
      margin: 2rem 0;
      font-size: 0.9375rem; }
.article-body .data-table td { padding: 0.75rem 1rem;
      border-bottom: 1px solid var(--gray-200); }
.article-body .data-table th { background: var(--navy-900);
      color: var(--gold-400);
      font-weight: 600;
      padding: 0.85rem 1rem;
      text-align: left;
      font-size: 0.875rem; }
.article-body .data-table tr:nth-child(even) td { background: var(--gray-50); }
.article-body .dialogue-block { background: var(--gray-50);
      border-radius: 12px;
      padding: 1.5rem;
      margin: 1.5rem 0; }
.article-body .dialogue-block .context { font-size: 0.9375rem;
      color: var(--gray-600); }
.article-body .dialogue-block .question { font-size: 1rem;
      color: var(--navy-900);
      font-weight: 600;
      margin-bottom: 0.5rem; }
.article-body .dialogue-block .round { font-size: 0.8125rem;
      font-weight: 600;
      color: var(--gold-500);
      letter-spacing: 0.1em;
      margin-bottom: 0.35rem; }
.article-body .feature-list { margin: 1.5rem 0;
      padding-left: 0;
      list-style: none;
      counter-reset: feature; }
.article-body .feature-list .feature-title { font-family: var(--font-serif);
      font-size: 1.1rem;
      font-weight: 600;
      color: var(--navy-900);
      margin-bottom: 0.5rem; }
.article-body .feature-list li { counter-increment: feature;
      padding: 1.25rem 0 1.25rem 3.5rem;
      position: relative;
      border-bottom: 1px solid var(--gray-100); }
.article-body .feature-list li::before { content: counter(feature);
      position: absolute;
      left: 0;
      top: 1.15rem;
      width: 32px;
      height: 32px;
      background: var(--navy-900);
      color: var(--gold-400);
      font-family: var(--font-serif);
      font-weight: 700;
      font-size: 1rem;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center; }
.article-body .feature-list li:last-child { border-bottom: none; }
.article-body .feature-list p { margin-bottom: 0;
      font-size: 1rem; }
.article-body .fig-caption { text-align: center;
      font-size: 0.875rem;
      color: var(--gray-600);
      margin: 0.75rem 0 2rem;
      line-height: 1.6; }
.article-body .highlight { background: rgba(201, 168, 76, 0.12);
      padding: 0.1em 0.3em;
      border-radius: 3px; }
.article-body .insight-block { background: linear-gradient(135deg, var(--navy-900), var(--navy-800));
      border-radius: 12px;
      padding: 1.75rem;
      margin: 2rem 0;
      color: var(--white); }
.article-body .insight-block p { color: rgba(255,255,255,0.85);
      font-size: 1rem; }
.article-body .insight-block strong { color: var(--gold-400); }
.article-body .issue-list { margin: 1.5rem 0;
      padding-left: 0;
      list-style: none; }
.article-body .issue-list .issue-title { font-weight: 600;
      color: var(--navy-900); }
.article-body .issue-list li { padding: 0.75rem 0 0.75rem 1.5rem;
      position: relative;
      font-size: 1rem;
      line-height: 1.7;
      border-bottom: 1px solid var(--gray-100); }
.article-body .issue-list li::before { content: '';
      position: absolute;
      left: 0;
      top: 1.1rem;
      width: 6px;
      height: 6px;
      background: var(--gold-500);
      border-radius: 50%; }
.article-body .issue-list li:last-child { border-bottom: none; }
.article-body .layer-list { margin: 1.5rem 0;
      padding-left: 0;
      list-style: none;
      counter-reset: layer; }
.article-body .layer-list .layer-title { font-family: var(--font-serif);
      font-size: 1.1rem;
      font-weight: 600;
      color: var(--navy-900);
      margin-bottom: 0.5rem; }
.article-body .layer-list li { counter-increment: layer;
      padding: 1.25rem 0 1.25rem 3.5rem;
      position: relative;
      border-bottom: 1px solid var(--gray-100); }
.article-body .layer-list li::before { content: counter(layer);
      position: absolute;
      left: 0;
      top: 1.15rem;
      width: 32px;
      height: 32px;
      background: var(--navy-900);
      color: var(--gold-400);
      font-family: var(--font-serif);
      font-weight: 700;
      font-size: 1rem;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center; }
.article-body .layer-list li:last-child { border-bottom: none; }
.article-body .layer-list p { margin-bottom: 0;
      font-size: 1rem; }
.article-body .lead-quote { text-align: center;
      font-family: var(--font-serif);
      font-size: 1.125rem;
      color: var(--navy-800);
      line-height: 1.8;
      padding: 2rem 1.5rem;
      margin: 2rem 0;
      background: var(--gray-50);
      border-radius: 12px;
      border: 1px solid var(--gray-200); }
.article-body .principle-list { margin: 1.5rem 0;
      padding-left: 0;
      list-style: none;
      counter-reset: principle; }
.article-body .principle-list .principle-title { font-family: var(--font-serif);
      font-size: 1.1rem;
      font-weight: 600;
      color: var(--navy-900);
      margin-bottom: 0.5rem; }
.article-body .principle-list li { counter-increment: principle;
      padding: 1.25rem 0 1.25rem 3.5rem;
      position: relative;
      border-bottom: 1px solid var(--gray-100); }
.article-body .principle-list li::before { content: counter(principle);
      position: absolute;
      left: 0;
      top: 1.15rem;
      width: 32px;
      height: 32px;
      background: var(--navy-900);
      color: var(--gold-400);
      font-family: var(--font-serif);
      font-weight: 700;
      font-size: 1rem;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center; }
.article-body .principle-list li:last-child { border-bottom: none; }
.article-body .principle-list p { margin-bottom: 0;
      font-size: 1rem; }
.article-body .question-block { background: var(--gray-50);
      border-radius: 12px;
      padding: 1.75rem;
      margin: 2rem 0; }
.article-body .question-block .a-text { font-size: 0.9375rem;
      line-height: 1.8; }
.article-body .question-block .a-text strong { color: var(--navy-900); }
.article-body .question-block .q-source { font-size: 0.875rem;
      color: var(--gray-600);
      margin-bottom: 1rem;
      padding-bottom: 0.75rem;
      border-bottom: 1px solid var(--gray-200); }
.article-body .question-block .q-text { font-size: 0.9375rem;
      color: var(--gray-800);
      line-height: 1.8;
      margin-bottom: 1rem; }
.article-body .question-block h3 { font-family: var(--font-serif);
      font-size: 1.1rem;
      font-weight: 600;
      color: var(--navy-900);
      margin-bottom: 1rem; }
.article-body .quote-block { border-left: 3px solid var(--gold-500);
      padding: 1rem 1.5rem;
      margin: 2rem 0;
      background: var(--gray-50);
      border-radius: 0 8px 8px 0; }
.article-body .quote-block p { margin-bottom: 0.5rem;
      font-size: 1rem; }
.article-body .quote-block p:last-child { margin-bottom: 0; }
.article-body .section-label { text-align: center;
      font-size: 0.8125rem;
      font-weight: 600;
      color: var(--gold-500);
      letter-spacing: 0.15em;
      margin: 3rem 0 1rem; }
.article-body .signal-list { margin: 1.5rem 0;
      padding-left: 0;
      list-style: none; }
.article-body .signal-list li { padding: 0.75rem 0 0.75rem 2rem;
      position: relative;
      font-size: 1rem;
      line-height: 1.7;
      border-bottom: 1px solid var(--gray-100); }
.article-body .signal-list li::before { content: '⚠';
      position: absolute;
      left: 0;
      top: 0.75rem;
      font-size: 1rem; }
.article-body .signal-list li:last-child { border-bottom: none; }
.article-body .stat-item { text-align: center; }
.article-body .stat-label { font-size: 0.8125rem;
      color: var(--gray-600);
      margin-top: 0.35rem; }
.article-body .stat-num { font-family: var(--font-serif);
      font-size: 1.75rem;
      font-weight: 700;
      color: var(--navy-900);
      line-height: 1; }
.article-body .stats-row { display: flex;
      justify-content: center;
      gap: 2rem;
      flex-wrap: wrap;
      margin: 2.5rem 0;
      padding: 2rem;
      background: var(--gray-50);
      border-radius: 12px; }
.article-body .step-list { margin: 1.5rem 0;
      padding-left: 0;
      list-style: none; }
.article-body .step-list .step-title { font-weight: 600;
      color: var(--navy-900); }
.article-body .step-list li { padding: 1rem 0 1rem 2rem;
      position: relative;
      border-bottom: 1px solid var(--gray-100); }
.article-body .step-list li::before { content: '';
      position: absolute;
      left: 0;
      top: 1.35rem;
      width: 8px;
      height: 8px;
      background: var(--gold-500);
      border-radius: 50%; }
.article-body .step-list li:last-child { border-bottom: none; }
.article-body .steps-list { margin: 1.5rem 0;
      padding-left: 0;
      list-style: none;
      counter-reset: step; }
.article-body .steps-list li { counter-increment: step;
      padding: 1rem 0 1rem 3.5rem;
      position: relative;
      border-bottom: 1px solid var(--gray-100);
      font-size: 1rem; }
.article-body .steps-list li::before { content: 'Step ' counter(step);
      position: absolute;
      left: 0;
      top: 1rem;
      padding: 0.2rem 0.6rem;
      background: var(--navy-900);
      color: var(--gold-400);
      font-family: var(--font-serif);
      font-weight: 700;
      font-size: 0.75rem;
      border-radius: 4px; }
.article-body .steps-list li:last-child { border-bottom: none; }
.article-body .sub-section-label { font-family: var(--font-serif);
      font-size: 1.1rem;
      font-weight: 600;
      color: var(--navy-900);
      margin: 2rem 0 1rem; }
.article-body .subtitle { font-family: var(--font-serif);
      font-size: 1.25rem;
      font-weight: 600;
      color: var(--navy-900);
      text-align: center;
      margin: 2.5rem 0 1.5rem;
      line-height: 1.5; }
.article-body .user-list { margin: 1.5rem 0;
      padding-left: 0;
      list-style: none; }
.article-body .user-list .user-title { font-weight: 600;
      color: var(--navy-900); }
.article-body .user-list li { padding: 0.75rem 0 0.75rem 1.5rem;
      position: relative;
      font-size: 1rem;
      line-height: 1.7;
      border-bottom: 1px solid var(--gray-100); }
.article-body .user-list li::before { content: '';
      position: absolute;
      left: 0;
      top: 1.1rem;
      width: 6px;
      height: 6px;
      background: var(--gold-500);
      border-radius: 50%; }
.article-body .user-list li:last-child { border-bottom: none; }
.article-body h2 { font-family: var(--font-serif);
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--navy-900);
      margin: 2.5rem 0 1.25rem;
      padding-left: 0.75rem;
      border-left: 3px solid var(--gold-500); }
.article-body h3 { font-family: var(--font-serif);
      font-size: 1.15rem;
      font-weight: 600;
      color: var(--navy-900);
      margin: 2rem 0 1rem; }
.article-body p { margin-bottom: 1.5rem;
      font-size: 1.0625rem;
      line-height: 1.9;
      color: var(--gray-800); }
.article-body strong { color: var(--navy-900);
      font-weight: 600; }
.article-cta { max-width: 760px;
      margin: 0 auto 4rem;
      padding: 0 2rem; }
.article-cta-btn { display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      padding: 0.85rem 2rem;
      background: linear-gradient(135deg, var(--gold-500), var(--gold-400));
      color: var(--navy-900);
      font-size: 0.9375rem;
      font-weight: 600;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      text-decoration: none;
      transition: transform 0.2s, box-shadow 0.2s; }
.article-cta-btn:hover { transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(201, 168, 76, 0.3); }
.article-cta-inner { background: linear-gradient(135deg, var(--navy-900), var(--navy-800));
      border-radius: 12px;
      padding: 2.5rem;
      text-align: center; }
.article-cta-inner p { color: rgba(255,255,255,0.6);
      font-size: 0.9375rem;
      margin-bottom: 1.5rem; }
.article-disclaimer { max-width: 760px;
      margin: 0 auto;
      padding: 0 2rem 4rem; }
.article-disclaimer p { font-size: 0.8125rem;
      color: var(--gray-400);
      line-height: 1.7; }
.article-hero { background: linear-gradient(165deg, var(--navy-900), var(--navy-800));
      padding: 7rem 2rem 3.5rem; }
.article-hero .article-meta { display: flex;
      align-items: center;
      gap: 1rem;
      color: rgba(255,255,255,0.45);
      font-size: 0.875rem; }
.article-hero .article-meta .dot { width: 3px; height: 3px;
      background: rgba(255,255,255,0.3);
      border-radius: 50%; }
.article-hero .article-tag { display: inline-block;
      padding: 0.3rem 0.85rem;
      background: rgba(201, 168, 76, 0.15);
      color: var(--gold-400);
      font-size: 12px;
      font-weight: 600;
      border-radius: 100px;
      margin-bottom: 1.5rem;
      letter-spacing: 0.05em; }
.article-hero h1 { font-family: var(--font-serif);
      font-size: clamp(1.6rem, 3.5vw, 2.2rem);
      font-weight: 700;
      color: var(--white);
      line-height: 1.4;
      margin-bottom: 1.5rem; }
.article-hero-inner { max-width: 760px;
      margin: 0 auto; }
:root { --navy-900: #0a1628;
      --navy-800: #0f2140;
      --navy-700: #152d50;
      --gold-500: #c9a84c;
      --gold-400: #d4b85e;
      --gray-50: #f8f9fb;
      --gray-100: #f0f2f5;
      --gray-200: #e2e5ea;
      --gray-400: #9ba3af;
      --gray-600: #5a6270;
      --gray-800: #2d3239;
      --white: #ffffff;
      --font-serif: 'Noto Serif SC', 'Songti SC', 'SimSun', serif;
      --font-sans: 'Noto Sans SC', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif; }
body { font-family: var(--font-sans);
      color: var(--gray-800);
      background: var(--white);
      line-height: 1.8;
      font-size: 16px;
      -webkit-font-smoothing: antialiased; }
html { scroll-behavior: smooth; }
@media (max-width: 768px) {
  .article-body { padding: 2rem 1.5rem 3rem; }
  .article-body .case-block { padding: 1.25rem; }
  .article-body .comparison-table { font-size: 0.8125rem; }
  .article-body .comparison-table td { padding: 0.5rem; }
  .article-body .comparison-table th { padding: 0.5rem; }
  .article-body .data-table { font-size: 0.8125rem; }
  .article-body .data-table td { padding: 0.6rem 0.75rem; }
  .article-body .data-table th { padding: 0.6rem 0.75rem; }
  .article-body .lead-quote { padding: 1.5rem 1rem; }
  .article-body .question-block { padding: 1.25rem; }
  .article-body .stats-row { gap: 1rem; padding: 1.5rem; }
  .article-hero { padding: 5.5rem 1.5rem 2.5rem; }
}