/* ==========================================================================
   随便云 (SuiBian Cloud - suibiancloud.mom)
   Dark-Luxury Couture Edition | 高奢私享黑金私享版样式
   Palette: Near-black #0b0b0d, Champagne-Gold Gradients, Serif Typography
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;600;700;800;900&family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;0,700;1,400&family=Noto+Serif+SC:wght@300;400;500;600;700;900&display=swap');

:root {
  /* Dark Luxury Base */
  --bg-main: #0b0b0d;
  --bg-surface: #111114;
  --bg-card: rgba(18, 18, 22, 0.75);
  --bg-card-hover: rgba(24, 24, 30, 0.9);

  /* Champagne-Gold Gradient & Accents */
  --gold-gradient: linear-gradient(135deg, #8e6d2f 0%, #f3dd9a 35%, #c9a24b 70%, #f7e7b0 100%);
  --gold-gradient-horizontal: linear-gradient(90deg, #8e6d2f, #f3dd9a, #c9a24b, #f7e7b0);
  --gold-primary: #c9a24b;
  --gold-light: #f3dd9a;
  --gold-bright: #f7e7b0;
  --gold-dark: #8e6d2f;
  --gold-hairline: rgba(201, 162, 75, 0.22);
  --gold-hairline-bright: rgba(243, 221, 154, 0.45);
  --gold-glow: rgba(201, 162, 75, 0.15);

  /* Refined Text Tones */
  --text-platinum: #f5f2eb;
  --text-secondary: #a8a395;
  --text-dim: #6e6a5f;

  /* Typography */
  --font-serif-en: 'Cinzel', 'Cormorant Garamond', serif;
  --font-serif-cn: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --transition-luxury: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  --radius-subtle: 4px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-main);
}

body {
  font-family: var(--font-serif-cn);
  background-color: var(--bg-main);
  color: var(--text-platinum);
  line-height: 1.8;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ================= Dynamic Canvas Background (Subtle Gold Stardust) ================= */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(circle at 50% 15%, #15151b 0%, #0b0b0d 75%);
}

/* ================= Layout Container ================= */
.container {
  width: 100%;
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ================= Gold Hairline Divider ================= */
.hairline-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(201, 162, 75, 0.35) 50%, transparent 100%);
  margin: 0 auto;
}

.hairline-divider-short {
  width: 120px;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, #c9a24b 50%, transparent 100%);
  margin: 18px auto;
}

/* ================= Small Wide-Tracked English Labels ================= */
.luxury-label {
  font-family: var(--font-serif-en);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold-light);
  display: inline-block;
  opacity: 0.9;
}

/* ================= Gold Gradient Text Utility ================= */
.gold-text {
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* ================= Header & Navigation ================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 11, 13, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--gold-hairline);
  transition: var(--transition-luxury);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}

/* Brand Logo (纯粹高奢文字标识，无多余外图) */
.brand-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: var(--transition-luxury);
}

.brand-logo:hover {
  opacity: 0.88;
}

.brand-logo-img,
.footer-logo {
  display: none !important;
}

.brand-text-wrap {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-serif-cn);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}

.brand-tag {
  font-family: var(--font-serif-en);
  font-size: 0.65rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold-dark);
  margin-top: 2px;
}

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 36px;
}

.nav-link {
  font-family: var(--font-serif-cn);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.92rem;
  letter-spacing: 0.08em;
  transition: var(--transition-luxury);
  position: relative;
  padding: 6px 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--gold-light);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 1px;
  background: var(--gold-primary);
  transition: var(--transition-luxury);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

/* Mobile Hamburger */
.mobile-menu-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--gold-hairline);
  cursor: pointer;
  padding: 8px 10px;
  color: var(--gold-light);
  border-radius: var(--radius-subtle);
}

/* ================= Buttons ================= */
/* Black Gold-Outlined Button that fills Gold on hover */
.btn-gold-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: #0b0b0d;
  border: 1px solid #c9a24b;
  color: #f3dd9a;
  padding: 14px 38px;
  font-family: var(--font-serif-cn);
  font-size: 0.96rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-luxury);
  position: relative;
  border-radius: var(--radius-subtle);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
}

.btn-gold-outline:hover {
  background: linear-gradient(135deg, #c9a24b 0%, #f3dd9a 50%, #c9a24b 100%);
  color: #0b0b0d;
  border-color: #f3dd9a;
  font-weight: 600;
  box-shadow: 0 0 30px rgba(201, 162, 75, 0.4);
  transform: translateY(-2px);
}

.btn-gold-outline svg {
  transition: transform 0.3s ease;
}

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

.btn-luxury-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  border: 1px solid var(--gold-hairline);
  color: var(--text-secondary);
  padding: 13px 32px;
  font-family: var(--font-serif-cn);
  font-size: 0.92rem;
  letter-spacing: 0.12em;
  text-decoration: none;
  cursor: pointer;
  border-radius: var(--radius-subtle);
  transition: var(--transition-luxury);
}

.btn-luxury-ghost:hover {
  border-color: var(--gold-primary);
  color: var(--gold-light);
  background: rgba(201, 162, 75, 0.05);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 22px;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
}

.btn-block {
  width: 100%;
}

/* ================= CENTERED HERO ================= */
.hero-section {
  padding: 110px 0 90px;
  text-align: center;
  position: relative;
}

.hero-atelier-tag {
  margin-bottom: 24px;
}

.hero-title {
  font-family: var(--font-serif-cn);
  font-size: 4rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  line-height: 1.25;
  margin-bottom: 26px;
}

.hero-headline-gold {
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  font-weight: 600;
}

.hero-subtitle {
  font-family: var(--font-serif-cn);
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 780px;
  margin: 0 auto 46px;
  line-height: 2;
  letter-spacing: 0.04em;
  font-weight: 300;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  margin-bottom: 70px;
}

/* ================= GOLD METRIC ROW ================= */
.metric-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding: 38px 48px;
  background: rgba(17, 17, 20, 0.6);
  border-top: 1px solid var(--gold-hairline);
  border-bottom: 1px solid var(--gold-hairline);
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
  backdrop-filter: blur(12px);
}

.metric-item {
  text-align: center;
  position: relative;
}

.metric-item:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 15%;
  right: -16px;
  height: 70%;
  width: 1px;
  background: var(--gold-hairline);
}

.metric-value {
  font-family: var(--font-serif-en);
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.1;
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
}

.metric-label-cn {
  font-size: 0.95rem;
  color: var(--text-platinum);
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.metric-label-en {
  font-family: var(--font-serif-en);
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  color: var(--gold-dark);
  text-transform: uppercase;
}

/* ================= Section Header Component ================= */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag-wrap {
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-serif-cn);
  font-size: 2.6rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--text-platinum);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto;
  font-weight: 300;
  letter-spacing: 0.04em;
  line-height: 1.9;
}

/* ================= FEATURES SECTION (Roman Numerals Ⅰ Ⅱ Ⅲ) ================= */
.features-section {
  padding: 100px 0;
  position: relative;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
}

.feature-card-luxury {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.04);
  /* Roman numeral with hairline gold top rule */
  border-top: 1px solid var(--gold-hairline);
  padding: 42px 34px;
  position: relative;
  transition: var(--transition-luxury);
  border-radius: var(--radius-subtle);
  display: flex;
  flex-direction: column;
}

.feature-card-luxury:hover {
  transform: translateY(-4px);
  border-top-color: var(--gold-primary);
  background: var(--bg-card-hover);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
}

.roman-numeral {
  font-family: var(--font-serif-en);
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 18px;
  display: block;
}

.feature-title {
  font-family: var(--font-serif-cn);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-platinum);
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}

.feature-desc {
  font-size: 0.94rem;
  color: var(--text-secondary);
  line-height: 1.85;
  font-weight: 300;
}

/* ================= PRICING SECTION (All Plans Side-by-Side 同排) ================= */
.pricing-section {
  padding: 110px 0;
  background: linear-gradient(180deg, transparent 0%, rgba(17, 17, 20, 0.5) 50%, transparent 100%);
  position: relative;
}

.pricing-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 50px;
}

.pricing-switch-luxury {
  display: inline-flex;
  align-items: center;
  background: #0b0b0d;
  border: 1px solid var(--gold-hairline);
  border-radius: var(--radius-subtle);
  padding: 4px;
}

.switch-btn-luxury {
  background: transparent;
  border: none;
  color: var(--text-dim);
  padding: 8px 24px;
  font-family: var(--font-serif-cn);
  font-size: 0.88rem;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: var(--transition-luxury);
  border-radius: 2px;
}

.switch-btn-luxury.active {
  background: linear-gradient(135deg, #8e6d2f 0%, #c9a24b 100%);
  color: #0b0b0d;
  font-weight: 600;
  box-shadow: 0 2px 10px rgba(201, 162, 75, 0.3);
}

/* 核心要求：所有价格同排展示 (Side-by-Side 响应式横向网格) */
.pricing-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  align-items: stretch;
}

.pricing-card-luxury {
  background: var(--bg-card);
  border: 1px solid var(--gold-hairline);
  border-top: 1px solid var(--gold-hairline-bright);
  padding: 38px 26px;
  border-radius: var(--radius-subtle);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-luxury);
  position: relative;
  backdrop-filter: blur(12px);
}

.pricing-card-luxury:hover {
  transform: translateY(-6px);
  border-color: var(--gold-primary);
  background: var(--bg-card-hover);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
}

.pricing-card-luxury.featured {
  background: linear-gradient(180deg, rgba(22, 22, 28, 0.9) 0%, rgba(17, 17, 20, 0.85) 100%);
  border: 1px solid var(--gold-primary);
  box-shadow: 0 0 35px rgba(201, 162, 75, 0.18);
}

.plan-badge-luxury {
  position: absolute;
  top: -11px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(90deg, #c9a24b, #f3dd9a);
  color: #0b0b0d;
  padding: 3px 14px;
  font-family: var(--font-serif-en);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  font-weight: 700;
  text-transform: uppercase;
  border-radius: 2px;
  box-shadow: 0 2px 10px rgba(201, 162, 75, 0.3);
}

.plan-header {
  margin-bottom: 22px;
}

.plan-name {
  font-family: var(--font-serif-cn);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-platinum);
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.plan-subtitle {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.5;
  font-weight: 300;
}

.plan-price-wrap {
  margin: 20px 0 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--gold-hairline);
}

.plan-currency {
  font-family: var(--font-serif-en);
  font-size: 1.3rem;
  color: var(--gold-light);
  margin-right: 2px;
}

.plan-amount {
  font-family: var(--font-serif-en);
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.plan-period {
  font-size: 0.82rem;
  color: var(--text-dim);
  letter-spacing: 0.06em;
}

.plan-specs {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 32px;
}

.spec-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-weight: 300;
}

.spec-item.highlight {
  color: var(--text-platinum);
  font-weight: 400;
}

.spec-item svg {
  color: var(--gold-primary);
  flex-shrink: 0;
}

.pricing-guarantee-note {
  text-align: center;
  margin-top: 42px;
  font-size: 0.88rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

.pricing-guarantee-note a {
  color: var(--gold-light);
  text-decoration: none;
  border-bottom: 1px dotted var(--gold-primary);
}

/* ================= ARTICLES SHOWCASE (8 SEO Articles) ================= */
.articles-section {
  padding: 100px 0;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.article-card-luxury {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-top: 1px solid var(--gold-hairline);
  padding: 30px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-decoration: none;
  border-radius: var(--radius-subtle);
  transition: var(--transition-luxury);
}

.article-card-luxury:hover {
  transform: translateY(-5px);
  border-top-color: var(--gold-primary);
  background: var(--bg-card-hover);
  box-shadow: 0 16px 35px rgba(0, 0, 0, 0.6);
}

.article-tag {
  font-family: var(--font-serif-en);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  color: var(--gold-dark);
  text-transform: uppercase;
  margin-bottom: 12px;
  display: block;
}

.article-card-title {
  font-family: var(--font-serif-cn);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-platinum);
  line-height: 1.55;
  margin-bottom: 12px;
  letter-spacing: 0.04em;
}

.article-card-desc {
  font-size: 0.84rem;
  color: var(--text-dim);
  line-height: 1.7;
  font-weight: 300;
}

.article-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--gold-hairline);
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-top: 20px;
}

.article-link-text {
  color: var(--gold-light);
  letter-spacing: 0.1em;
  font-family: var(--font-serif-en);
  font-size: 0.72rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ================= REVIEWS / TESTIMONIALS (Private Client Endorsements) ================= */
.reviews-section {
  padding: 100px 0;
  background: rgba(17, 17, 20, 0.45);
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.review-card-luxury {
  background: var(--bg-card);
  border: 1px solid var(--gold-hairline);
  padding: 36px 30px;
  border-radius: var(--radius-subtle);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-luxury);
}

.review-card-luxury:hover {
  border-color: var(--gold-primary);
  transform: translateY(-4px);
}

.review-stars {
  color: var(--gold-light);
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  margin-bottom: 18px;
}

.review-quote {
  font-family: 'Cormorant Garamond', var(--font-serif-cn), serif;
  font-size: 1.05rem;
  color: var(--text-platinum);
  line-height: 1.75;
  margin-bottom: 24px;
  font-style: italic;
  font-weight: 300;
}

.review-author-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: 16px;
  border-top: 1px solid var(--gold-hairline);
}

.review-avatar-gold {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--gold-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif-en);
  color: var(--gold-light);
  font-size: 0.95rem;
  background: rgba(201, 162, 75, 0.08);
}

.author-name {
  font-family: var(--font-serif-cn);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-platinum);
}

.author-role {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* ================= FAQ SECTION ================= */
.faq-section {
  padding: 100px 0;
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item-luxury {
  background: var(--bg-card);
  border: 1px solid var(--gold-hairline);
  border-radius: var(--radius-subtle);
  overflow: hidden;
  transition: var(--transition-luxury);
}

.faq-item-luxury:hover {
  border-color: rgba(201, 162, 75, 0.4);
}

.faq-question-luxury {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 24px 28px;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-platinum);
  font-family: var(--font-serif-cn);
  font-size: 1.05rem;
  font-weight: 500;
  text-align: left;
  letter-spacing: 0.04em;
}

.faq-chevron-gold {
  color: var(--gold-primary);
  transition: transform 0.35s ease;
  flex-shrink: 0;
}

.faq-item-luxury.open .faq-chevron-gold {
  transform: rotate(180deg);
}

.faq-answer-luxury {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-answer-inner {
  padding: 0 28px 26px;
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.85;
  border-top: 1px solid var(--gold-hairline);
  padding-top: 18px;
  font-weight: 300;
}

/* ================= OUTBOUND LINKS (外链推荐) ================= */
.external-links-section {
  padding: 70px 0;
  border-top: 1px solid var(--gold-hairline);
  background: #09090b;
}

.links-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}

.link-chip-luxury {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--gold-hairline);
  border-radius: var(--radius-subtle);
  text-decoration: none;
  color: var(--text-dim);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  transition: var(--transition-luxury);
}

.link-chip-luxury:hover {
  border-color: var(--gold-primary);
  color: var(--gold-light);
  background: rgba(201, 162, 75, 0.06);
  transform: translateY(-2px);
}

/* ================= CTA BANNER ================= */
.cta-banner-section {
  padding: 90px 0;
}

.cta-banner-luxury {
  background: radial-gradient(circle at 50% 50%, rgba(201, 162, 75, 0.08) 0%, rgba(17, 17, 20, 0.95) 75%);
  border: 1px solid var(--gold-hairline-bright);
  padding: 64px 40px;
  text-align: center;
  position: relative;
  border-radius: var(--radius-subtle);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8);
}

.cta-banner-title {
  font-family: var(--font-serif-cn);
  font-size: 2.5rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.cta-banner-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin: 0 auto 36px;
  font-weight: 300;
  line-height: 1.85;
}

/* ================= FOOTER ================= */
.site-footer {
  background: #070709;
  border-top: 1px solid var(--gold-hairline);
  padding: 70px 0 35px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer-desc {
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.8;
  max-width: 320px;
  font-weight: 300;
}

.footer-col-title {
  font-family: var(--font-serif-en);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 22px;
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links-list a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.86rem;
  transition: var(--transition-luxury);
  letter-spacing: 0.04em;
}

.footer-links-list a:hover {
  color: var(--gold-light);
  padding-left: 4px;
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--gold-hairline);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 0.8rem;
  color: var(--text-dim);
  font-weight: 300;
}

/* ================= SUB PAGES (Articles, Sitemap, Privacy, Terms) ================= */
.page-sub {
  background-color: var(--bg-main);
}

.page-content {
  padding: 60px 0 100px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-bottom: 32px;
}

.breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-luxury);
}

.breadcrumb a:hover {
  color: var(--gold-light);
}

.article-container {
  max-width: 900px;
}

.legal-container {
  max-width: 860px;
}

.article-header {
  margin-bottom: 40px;
  border-bottom: 1px solid var(--gold-hairline);
  padding-bottom: 32px;
}

.article-badge-wrap {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}

.badge-gold {
  border: 1px solid var(--gold-hairline-bright);
  background: rgba(201, 162, 75, 0.08);
  color: var(--gold-light);
  padding: 3px 12px;
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  border-radius: 2px;
}

.article-title {
  font-family: var(--font-serif-cn);
  font-size: 2.3rem;
  font-weight: 500;
  line-height: 1.35;
  color: var(--text-platinum);
  margin: 16px 0;
  letter-spacing: 0.04em;
}

.article-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.82rem;
  color: var(--text-dim);
}

.article-lead {
  font-size: 1.1rem;
  line-height: 1.95;
  color: var(--text-platinum);
  background: rgba(17, 17, 20, 0.65);
  border-left: 2px solid var(--gold-primary);
  padding: 22px 28px;
  border-radius: 0 var(--radius-subtle) var(--radius-subtle) 0;
  margin-bottom: 40px;
  font-weight: 300;
}

.article-body h2 {
  font-family: var(--font-serif-cn);
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--gold-bright);
  margin: 44px 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--gold-hairline);
  letter-spacing: 0.06em;
}

.article-body h3 {
  font-family: var(--font-serif-cn);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--gold-light);
  margin: 32px 0 14px;
}

.article-body p {
  font-size: 1rem;
  color: #d1cbbb;
  line-height: 1.95;
  margin-bottom: 20px;
  font-weight: 300;
}

.article-body ul,
.article-body ol {
  margin: 0 0 26px 26px;
  color: #d1cbbb;
  line-height: 1.9;
  font-weight: 300;
}

.article-body li {
  margin-bottom: 10px;
}

.article-body strong {
  color: var(--text-platinum);
  font-weight: 600;
}

.article-body a {
  color: var(--gold-light);
  text-decoration: none;
  border-bottom: 1px dotted var(--gold-primary);
  transition: var(--transition-luxury);
}

.article-body a:hover {
  color: #ffffff;
  border-bottom-style: solid;
}

.article-body code {
  background: #111114;
  border: 1px solid var(--gold-hairline);
  padding: 2px 7px;
  border-radius: 2px;
  color: var(--gold-light);
  font-size: 0.88em;
  font-family: monospace;
}

.article-body blockquote {
  background: rgba(17, 17, 20, 0.7);
  border-left: 2px solid var(--gold-primary);
  padding: 18px 24px;
  margin: 26px 0;
  font-style: italic;
  color: var(--text-secondary);
}

/* Data Table */
.table-responsive {
  overflow-x: auto;
  margin: 28px 0;
  border: 1px solid var(--gold-hairline);
  border-radius: var(--radius-subtle);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
  background: var(--bg-card);
}

.data-table th,
.data-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--gold-hairline);
}

.data-table th {
  background: #111114;
  color: var(--gold-light);
  font-weight: 500;
  font-family: var(--font-serif-cn);
  letter-spacing: 0.05em;
}

.data-table tr:hover {
  background: rgba(201, 162, 75, 0.03);
}

/* Article CTA Box */
.article-cta-box {
  background: radial-gradient(circle at 50% 50%, rgba(201, 162, 75, 0.06) 0%, rgba(17, 17, 20, 0.9) 80%);
  border: 1px solid var(--gold-hairline-bright);
  border-radius: var(--radius-subtle);
  padding: 38px 32px;
  text-align: center;
  margin: 48px 0;
}

.article-cta-box h3 {
  font-family: var(--font-serif-cn);
  color: var(--text-platinum);
  font-size: 1.4rem;
  margin-top: 0;
  margin-bottom: 12px;
  letter-spacing: 0.06em;
}

.article-cta-box p {
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 26px;
  font-weight: 300;
}

/* Related Links */
.article-related-links {
  background: var(--bg-card);
  border: 1px solid var(--gold-hairline);
  border-radius: var(--radius-subtle);
  padding: 28px 32px;
  margin-top: 52px;
}

.article-related-links h3 {
  font-family: var(--font-serif-cn);
  color: var(--text-platinum);
  font-size: 1.15rem;
  margin-top: 0;
  margin-bottom: 16px;
  letter-spacing: 0.06em;
}

.article-related-links ul {
  margin: 0 0 0 20px;
}

.article-related-links li {
  margin-bottom: 10px;
}

/* Sitemap Grid */
.sitemap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 40px;
}

.sitemap-card-luxury {
  background: var(--bg-card);
  border: 1px solid var(--gold-hairline);
  padding: 32px 28px;
  border-radius: var(--radius-subtle);
}

.sitemap-card-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif-cn);
  font-size: 1.15rem;
  color: var(--text-platinum);
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--gold-hairline);
  letter-spacing: 0.06em;
}

.sitemap-card-title svg {
  color: var(--gold-primary);
}

.sitemap-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.sitemap-list a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  line-height: 1.6;
  transition: var(--transition-luxury);
  font-weight: 300;
}

.sitemap-list a:hover {
  color: var(--gold-light);
  padding-left: 4px;
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 300px;
  height: 100vh;
  background: #0f0f13;
  border-left: 1px solid var(--gold-hairline);
  z-index: 1000;
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: -15px 0 40px rgba(0, 0, 0, 0.8);
}

.mobile-drawer.open {
  right: 0;
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 36px;
}

.drawer-close {
  background: transparent;
  border: none;
  color: var(--gold-light);
  cursor: pointer;
  padding: 4px;
}

.drawer-links {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 36px;
}

.drawer-link {
  font-family: var(--font-serif-cn);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 1rem;
  letter-spacing: 0.1em;
  transition: var(--transition-luxury);
}

.drawer-link:hover {
  color: var(--gold-light);
}

.drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

.drawer-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

/* ================= RESPONSIVE ADAPTATIONS ================= */
@media (max-width: 1100px) {
  .metric-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .metric-item:nth-child(2)::after {
    display: none;
  }
  .pricing-row {
    grid-template-columns: repeat(2, 1fr);
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .links-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
  .sitemap-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.6rem;
  }
  .hero-subtitle {
    font-size: 1rem;
  }
  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }
  .hero-cta-group .btn-gold-outline,
  .hero-cta-group .btn-luxury-ghost {
    width: 100%;
  }
  .metric-row {
    grid-template-columns: 1fr;
    padding: 24px;
  }
  .metric-item::after {
    display: none !important;
  }
  .nav-menu {
    display: none;
  }
  .mobile-menu-btn {
    display: block;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .pricing-row {
    grid-template-columns: 1fr;
  }
  .articles-grid {
    grid-template-columns: 1fr;
  }
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  .links-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .article-title {
    font-size: 1.8rem;
  }
}