/* 秒秒云 (miaomiao-yun.cyou) - Swiss Horology & Precision Tourbillon Chronometer Theme */
:root {
  --bg-porcelain: #F8FAFC;
  --bg-dial-card: #FFFFFF;
  --bg-guilloche-alt: #F1F5F9;
  --navy-sapphire: #0F2547;
  --navy-deep: #09172E;
  --ruby-bearing: #BE123C;
  --ruby-hover: #9F1239;
  --copper-rose: #C27838;
  --copper-light: #FDF8F3;
  --slate-text: #1E293B;
  --slate-muted: #475569;
  --border-minute: #CBD5E1;
  --border-fine: #E2E8F0;
  --shadow-chronometer: 0 10px 30px -5px rgba(15, 37, 71, 0.07), 0 4px 12px -2px rgba(15, 37, 71, 0.04);
  --shadow-ruby: 0 6px 20px -3px rgba(190, 18, 60, 0.28);
  --radius-dial: 10px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background-color: var(--bg-porcelain);
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(15, 37, 71, 0.04) 0%, transparent 65%),
    repeating-linear-gradient(90deg, rgba(203, 213, 225, 0.18) 0px, rgba(203, 213, 225, 0.18) 1px, transparent 1px, transparent 48px);
  color: var(--slate-text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

/* Global Hyperlink Consistency - Never browser default blue/purple */
a,
a:visited {
  color: var(--ruby-bearing);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1.5px;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

a:hover,
a:focus {
  color: var(--navy-sapphire);
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Top Minute-Track Accent Bar */
.chronometer-top-strip {
  background: var(--navy-sapphire);
  color: #E2E8F0;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  padding: 6px 0;
  border-bottom: 2px solid var(--copper-rose);
}

.chronometer-top-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.calibre-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  color: #F8FAFC;
}

.ruby-jewel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ruby-bearing);
  box-shadow: 0 0 0 2px rgba(190, 18, 60, 0.35);
  display: inline-block;
}

/* Header & Navigation */
.site-header {
  background: rgba(248, 250, 252, 0.96);
  border-bottom: 1px solid var(--border-minute);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
  gap: 20px;
}

.brand-logo,
.brand-logo:visited {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--navy-sapphire);
}

.brand-logo:hover {
  color: var(--ruby-bearing);
}

.brand-logo svg {
  height: 44px;
  width: auto;
  flex-shrink: 0;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.main-nav a,
.main-nav a:visited {
  text-decoration: none;
  color: var(--navy-sapphire);
  font-weight: 600;
  font-size: 0.94rem;
  padding: 7px 14px;
  border-radius: 6px;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--ruby-bearing);
  background: var(--copper-light);
  border-color: rgba(194, 120, 56, 0.35);
}

.main-nav a.nav-hub-pill,
.main-nav a.nav-hub-pill:visited {
  background: var(--navy-sapphire);
  color: #FFFFFF;
  border: 1px solid var(--copper-rose);
}

.main-nav a.nav-hub-pill:hover {
  background: var(--ruby-bearing);
  border-color: var(--ruby-bearing);
  color: #FFFFFF;
}

/* Hero Section */
.hero-section {
  padding: 64px 0 56px;
  border-bottom: 1px solid var(--border-minute);
  background:
    radial-gradient(circle at 80% 45%, rgba(194, 120, 56, 0.08) 0%, transparent 50%),
    linear-gradient(180deg, #FFFFFF 0%, var(--bg-porcelain) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 44px;
  align-items: center;
}

.horology-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  background: var(--copper-light);
  border: 1px solid var(--copper-rose);
  border-radius: 999px;
  color: var(--navy-sapphire);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 18px;
}

.hero-title {
  font-size: 2.55rem;
  line-height: 1.24;
  color: var(--navy-sapphire);
  font-weight: 800;
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}

.hero-title .ruby-highlight {
  color: var(--ruby-bearing);
  border-bottom: 3px solid var(--copper-rose);
}

.hero-subtitle {
  font-size: 1.08rem;
  color: var(--slate-muted);
  margin-bottom: 26px;
  line-height: 1.8;
}

.hero-specs-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 28px;
  padding: 14px 16px;
  background: var(--bg-dial-card);
  border: 1px solid var(--border-minute);
  border-left: 4px solid var(--navy-sapphire);
  border-radius: var(--radius-dial);
  box-shadow: var(--shadow-chronometer);
}

.spec-item {
  display: flex;
  flex-direction: column;
}

.spec-label {
  font-size: 0.76rem;
  color: var(--slate-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.spec-value {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--navy-sapphire);
  font-family: "SFMono-Regular", Consolas, monospace;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.btn-primary-ruby,
.btn-primary-ruby:visited {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--ruby-bearing);
  color: #FFFFFF;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.02rem;
  padding: 14px 28px;
  border-radius: 8px;
  border: 1px solid var(--ruby-bearing);
  box-shadow: var(--shadow-ruby);
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.btn-primary-ruby:hover {
  background: var(--ruby-hover);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.btn-secondary-chronometer,
.btn-secondary-chronometer:visited {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #FFFFFF;
  color: var(--navy-sapphire);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.02rem;
  padding: 14px 24px;
  border-radius: 8px;
  border: 2px solid var(--navy-sapphire);
  transition: all 0.2s ease;
}

.btn-secondary-chronometer:hover {
  background: var(--navy-sapphire);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.hero-visual-frame {
  background: var(--bg-dial-card);
  border: 2px solid var(--border-minute);
  border-radius: 16px;
  padding: 20px;
  box-shadow: var(--shadow-chronometer);
  position: relative;
}

.hero-visual-frame::before {
  content: "CALIBRE MMY-2026 · COSC CHRONOMETER CERTIFIED";
  display: block;
  text-align: center;
  font-size: 0.72rem;
  font-family: "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.12em;
  color: var(--copper-rose);
  margin-bottom: 10px;
  font-weight: 700;
}

.hero-anim-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
}

/* Section Layout & Headers */
.section-block {
  padding: 72px 0;
  border-bottom: 1px solid var(--border-fine);
}

.section-block.alt-bg {
  background: var(--bg-guilloche-alt);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 48px;
}

.section-index-tag {
  display: inline-block;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.78rem;
  color: var(--copper-rose);
  letter-spacing: 0.14em;
  font-weight: 700;
  margin-bottom: 8px;
}

.section-title {
  font-size: 2rem;
  color: var(--navy-sapphire);
  font-weight: 800;
  margin-bottom: 14px;
}

.section-desc {
  color: var(--slate-muted);
  font-size: 1rem;
}

/* Cards Grid - 3 Columns & 4 Columns */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.dial-card {
  background: var(--bg-dial-card);
  border: 1px solid var(--border-minute);
  border-top: 3px solid var(--navy-sapphire);
  border-radius: var(--radius-dial);
  padding: 28px 24px;
  box-shadow: var(--shadow-chronometer);
  transition: transform 0.2s ease, border-color 0.2s ease;
  position: relative;
}

.dial-card:hover {
  transform: translateY(-4px);
  border-top-color: var(--ruby-bearing);
}

.card-calibre-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.icon-escapement-box {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--copper-light);
  border: 1px solid var(--copper-rose);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--navy-sapphire);
}

.calibre-serial {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.76rem;
  color: var(--copper-rose);
  font-weight: 700;
  padding: 3px 8px;
  background: var(--bg-porcelain);
  border: 1px solid var(--border-fine);
  border-radius: 4px;
}

.dial-card h3 {
  font-size: 1.24rem;
  color: var(--navy-sapphire);
  margin-bottom: 10px;
  font-weight: 700;
}

.dial-card p {
  color: var(--slate-muted);
  font-size: 0.95rem;
  margin-bottom: 14px;
}

.dial-metric-line {
  padding-top: 12px;
  border-top: 1px dashed var(--border-minute);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy-sapphire);
  display: flex;
  justify-content: space-between;
}

/* Pricing Section */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-dial-card);
  border: 1px solid var(--border-minute);
  border-radius: 12px;
  padding: 32px 26px;
  box-shadow: var(--shadow-chronometer);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.pricing-card.featured-tourbillon {
  border: 2px solid var(--ruby-bearing);
  background: linear-gradient(180deg, #FFFFFF 0%, #FFF9FA 100%);
  transform: translateY(-6px);
}

.featured-ribbon {
  position: absolute;
  top: -13px;
  right: 20px;
  background: var(--ruby-bearing);
  color: #FFFFFF;
  font-size: 0.76rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
  letter-spacing: 0.05em;
}

.plan-name {
  font-size: 1.35rem;
  color: var(--navy-sapphire);
  font-weight: 800;
  margin-bottom: 6px;
}

.plan-sub {
  font-size: 0.88rem;
  color: var(--slate-muted);
  margin-bottom: 18px;
}

.plan-price-box {
  padding: 16px 0;
  border-top: 1px solid var(--border-fine);
  border-bottom: 1px solid var(--border-fine);
  margin-bottom: 20px;
}

.price-amount {
  font-size: 2.3rem;
  font-weight: 800;
  color: var(--navy-sapphire);
  font-family: "SFMono-Regular", Consolas, monospace;
}

.price-period {
  font-size: 0.92rem;
  color: var(--slate-muted);
}

.spec-list {
  list-style: none;
  margin-bottom: 26px;
}

.spec-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 0.94rem;
  color: var(--slate-text);
}

.spec-list li svg {
  width: 18px;
  height: 18px;
  color: var(--ruby-bearing);
  flex-shrink: 0;
  margin-top: 4px;
}

/* Precision Comparison Table */
.comparison-table-wrap {
  margin-top: 44px;
  overflow-x: auto;
  background: var(--bg-dial-card);
  border: 1px solid var(--border-minute);
  border-radius: var(--radius-dial);
  box-shadow: var(--shadow-chronometer);
}

.chronometer-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.93rem;
}

.chronometer-table th {
  background: var(--navy-sapphire);
  color: #FFFFFF;
  padding: 14px 18px;
  font-weight: 700;
}

.chronometer-table td {
  padding: 13px 18px;
  border-bottom: 1px solid var(--border-fine);
  color: var(--slate-text);
}

.chronometer-table tr:nth-child(even) td {
  background: var(--bg-porcelain);
}

/* FAQ Section */
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.faq-card {
  background: var(--bg-dial-card);
  border: 1px solid var(--border-minute);
  border-left: 4px solid var(--copper-rose);
  border-radius: var(--radius-dial);
  padding: 24px;
  box-shadow: var(--shadow-chronometer);
}

.faq-card h3 {
  font-size: 1.1rem;
  color: var(--navy-sapphire);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.faq-card p {
  font-size: 0.94rem;
  color: var(--slate-muted);
}

/* Testimonials */
.testimonial-card {
  background: var(--bg-dial-card);
  border: 1px solid var(--border-minute);
  border-radius: var(--radius-dial);
  padding: 26px;
  box-shadow: var(--shadow-chronometer);
}

.testimonial-quote {
  font-size: 0.96rem;
  color: var(--slate-text);
  margin-bottom: 18px;
  font-style: normal;
}

.testimonial-author {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 12px;
  border-top: 1px solid var(--border-fine);
  font-size: 0.86rem;
}

.author-name {
  font-weight: 700;
  color: var(--navy-sapphire);
}

.author-role {
  color: var(--copper-rose);
  font-family: "SFMono-Regular", Consolas, monospace;
}

/* Hub Page & Article Layout */
.page-hero-banner {
  background: linear-gradient(135deg, var(--navy-sapphire) 0%, var(--navy-deep) 100%);
  color: #FFFFFF;
  padding: 52px 0;
  border-bottom: 3px solid var(--copper-rose);
}

.page-hero-banner h1 {
  font-size: 2.2rem;
  margin-bottom: 12px;
  color: #FFFFFF;
}

.page-hero-banner p {
  color: #CBD5E1;
  max-width: 760px;
  font-size: 1.02rem;
}

.article-layout {
  max-width: 880px;
  margin: 48px auto;
  background: var(--bg-dial-card);
  border: 1px solid var(--border-minute);
  border-top: 4px solid var(--navy-sapphire);
  border-radius: 12px;
  padding: 44px 48px;
  box-shadow: var(--shadow-chronometer);
}

.article-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--slate-muted);
  padding-bottom: 20px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--border-minute);
  font-family: "SFMono-Regular", Consolas, monospace;
}

.article-content h2 {
  font-size: 1.48rem;
  color: var(--navy-sapphire);
  margin: 34px 0 14px;
  padding-left: 12px;
  border-left: 4px solid var(--ruby-bearing);
}

.article-content h3 {
  font-size: 1.18rem;
  color: var(--navy-sapphire);
  margin: 24px 0 10px;
}

.article-content p {
  margin-bottom: 18px;
  font-size: 1.02rem;
  color: var(--slate-text);
  line-height: 1.85;
}

.article-content ul,
.article-content ol {
  margin: 0 0 20px 22px;
  color: var(--slate-text);
}

.article-content li {
  margin-bottom: 8px;
}

.article-callout {
  background: var(--copper-light);
  border: 1px solid var(--copper-rose);
  border-left: 4px solid var(--ruby-bearing);
  border-radius: 8px;
  padding: 20px 24px;
  margin: 26px 0;
}

/* Footer - Strictly 4 Chinese Link Titles */
.site-footer {
  background: var(--navy-deep);
  color: #CBD5E1;
  padding: 40px 0;
  border-top: 3px solid var(--copper-rose);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  text-align: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 28px;
}

.footer-links a,
.footer-links a:visited {
  color: #F8FAFC;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.96rem;
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid rgba(194, 120, 56, 0.4);
  background: rgba(15, 37, 71, 0.7);
}

.footer-links a:hover {
  background: var(--ruby-bearing);
  border-color: var(--ruby-bearing);
  color: #FFFFFF;
}

.footer-copy {
  font-size: 0.84rem;
  color: #94A3B8;
}

/* Responsive Design - Mobile Navigation NEVER disappears (Rule 7) */
@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .grid-3,
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .pricing-card.featured-tourbillon {
    transform: none;
  }
}

@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .main-nav {
    display: flex !important;
    width: 100%;
    flex-wrap: wrap;
    gap: 8px;
  }
  .main-nav a,
  .main-nav a:visited {
    font-size: 0.86rem;
    padding: 8px 12px;
    background: #FFFFFF;
    border: 1px solid var(--border-minute);
    flex: 1 1 auto;
    text-align: center;
  }
  .hero-title {
    font-size: 1.9rem;
  }
  .hero-specs-bar {
    grid-template-columns: 1fr;
  }
  .grid-4,
  .faq-grid {
    grid-template-columns: 1fr;
  }
  .article-layout {
    padding: 26px 20px;
    margin: 24px auto;
  }
}