/* ===================================================================
   DUCATI ACCEL | 杜卡迪网络加速器
   Theme: Dust & Rally (尘与拉力) - 越野拉力冒险美学
   Color Palette:
     - Sand Background: #E9DFC8
     - Ink / Deep Ochre Brown: #2E1C0F
     - Rally Orange: #E06A1F
     - Khaki Secondary: #8A7B62
     - Raised Card Background: #F2EAD8
     - Pure colors only, zero gradients.
   =================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Staatliches&family=Work+Sans:wght@400;500;600;700;800&display=swap');

:root {
  --bg-sand: #E9DFC8;
  --ink-ochre: #2E1C0F;
  --rally-orange: #E06A1F;
  --khaki-muted: #8A7B62;
  --card-sand: #F2EAD8;
  --border-dark: #2E1C0F;
  --white-stark: #FAF6ED;
  --font-stamp: 'Staatliches', 'Impact', 'Trebuchet MS', sans-serif;
  --font-body: 'Work Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --shadow-block: 4px 4px 0px #2E1C0F;
  --shadow-block-lg: 6px 6px 0px #2E1C0F;
  --shadow-block-sm: 2px 2px 0px #2E1C0F;
}

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

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

body {
  background-color: var(--bg-sand);
  color: var(--ink-ochre);
  font-family: var(--font-body);
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
  background-image: radial-gradient(var(--khaki-muted) 0.75px, transparent 0.75px);
  background-size: 24px 24px;
}

/* 3% Paper Noise Overlay */
.noise-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Typography Utility */
h1, h2, h3, h4, .stamp-title, .rally-tag {
  font-family: var(--font-stamp);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--ink-ochre);
  line-height: 1.15;
}

p {
  color: var(--ink-ochre);
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.15s ease-in-out;
}

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Stamp & Roadbook Elements */
.badge-stamp {
  display: inline-block;
  font-family: var(--font-stamp);
  font-size: 0.85rem;
  letter-spacing: 2px;
  padding: 4px 10px;
  background-color: var(--rally-orange);
  color: var(--white-stark);
  border: 2px solid var(--ink-ochre);
  box-shadow: var(--shadow-block-sm);
  transform: rotate(-1.5deg);
  text-transform: uppercase;
}

.checkpoint-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-stamp);
  font-size: 0.85rem;
  padding: 3px 10px;
  background: var(--card-sand);
  border: 2px solid var(--ink-ochre);
  color: var(--ink-ochre);
  font-weight: 700;
  box-shadow: var(--shadow-block-sm);
}

.checkpoint-pill .cp-num {
  background: var(--ink-ochre);
  color: var(--bg-sand);
  padding: 1px 6px;
}

/* Navigation */
.header-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--bg-sand);
  border-bottom: 3px solid var(--ink-ochre);
  padding: 12px 0;
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-badge {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 2px solid var(--ink-ochre);
  background-color: var(--rally-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-block-sm);
}

.brand-name-group {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-stamp);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--ink-ochre);
}

.brand-sub {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--khaki-muted);
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 24px;
}

.nav-menu a {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink-ochre);
  padding: 6px 10px;
  border-bottom: 2px solid transparent;
}

.nav-menu a:hover {
  color: var(--rally-orange);
  border-bottom: 2px solid var(--rally-orange);
}

.nav-menu a.nav-highlight {
  background-color: var(--card-sand);
  border: 2px solid var(--ink-ochre);
  box-shadow: var(--shadow-block-sm);
  color: var(--rally-orange);
  font-weight: 800;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Buttons */
.btn-rally {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-stamp);
  font-size: 1.1rem;
  padding: 12px 24px;
  border: 2px solid var(--ink-ochre);
  box-shadow: var(--shadow-block);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
  text-align: center;
}

.btn-rally:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-block-lg);
}

.btn-rally:active {
  transform: translate(2px, 2px);
  box-shadow: var(--shadow-block-sm);
}

.btn-primary {
  background-color: var(--rally-orange);
  color: var(--white-stark);
}

.btn-secondary {
  background-color: var(--card-sand);
  color: var(--ink-ochre);
}

.btn-dofollow {
  background-color: var(--ink-ochre);
  color: var(--bg-sand);
  border-color: var(--ink-ochre);
}

.btn-sm {
  padding: 7px 15px;
  font-size: 0.92rem;
}

/* Hero Section */
.hero-section {
  padding: 60px 0 50px;
  position: relative;
  border-bottom: 3px solid var(--ink-ochre);
  background-color: var(--bg-sand);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}

.roadbook-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.hero-content h1 {
  font-size: 3.4rem;
  line-height: 1.05;
  margin-bottom: 18px;
  color: var(--ink-ochre);
}

.hero-subtitle {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--rally-orange);
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--ink-ochre);
  margin-bottom: 28px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
}

.hero-guarantee {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--khaki-muted);
}

.hero-guarantee span {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Roadbook Visual Box (Hero Right) */
.rally-roadbook-card {
  background-color: var(--card-sand);
  border: 3px solid var(--ink-ochre);
  padding: 24px;
  box-shadow: var(--shadow-block-lg);
  position: relative;
}

.roadbook-stamp-tag {
  position: absolute;
  top: -14px;
  right: 20px;
  background-color: var(--rally-orange);
  color: var(--white-stark);
  font-family: var(--font-stamp);
  font-size: 0.85rem;
  letter-spacing: 1px;
  padding: 3px 12px;
  border: 2px solid var(--ink-ochre);
  transform: rotate(2deg);
}

.roadbook-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 15px;
}

.metric-box {
  background: var(--bg-sand);
  border: 2px solid var(--ink-ochre);
  padding: 12px;
  text-align: center;
}

.metric-value {
  font-family: var(--font-stamp);
  font-size: 2.2rem;
  color: var(--rally-orange);
  line-height: 1;
}

.metric-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--khaki-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.roadbook-route-list {
  margin-top: 18px;
  border-top: 2px dashed var(--khaki-muted);
  padding-top: 14px;
  list-style: none;
}

.roadbook-route-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 0.9rem;
  font-weight: 600;
}

.status-badge-ok {
  background: var(--ink-ochre);
  color: var(--bg-sand);
  font-family: var(--font-stamp);
  font-size: 0.75rem;
  padding: 2px 6px;
}

/* Section Common Styling */
.section-pad {
  padding: 65px 0;
  border-bottom: 3px solid var(--ink-ochre);
}

.section-head {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 40px;
}

.section-head .checkpoint-pill {
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: 2.6rem;
  margin-bottom: 12px;
}

.section-head p {
  color: var(--khaki-muted);
  font-size: 1.05rem;
  font-weight: 500;
}

/* 3 Core Advantages Cards */
.cards-triad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.rally-card {
  background-color: var(--card-sand);
  border: 3px solid var(--ink-ochre);
  padding: 28px 24px;
  box-shadow: var(--shadow-block);
  position: relative;
  display: flex;
  flex-direction: column;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.rally-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-block-lg);
}

.card-checkpoint-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  border-bottom: 2px dashed var(--khaki-muted);
  padding-bottom: 10px;
}

.card-icon-art {
  width: 56px;
  height: 56px;
  border: 2px solid var(--ink-ochre);
  background: var(--bg-sand);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  box-shadow: var(--shadow-block-sm);
}

.rally-card h3 {
  font-size: 1.45rem;
  margin-bottom: 12px;
  line-height: 1.25;
}

.rally-card p {
  font-size: 0.95rem;
  color: var(--ink-ochre);
  line-height: 1.6;
}

/* Streaming & AI Support Cards */
.media-ai-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.media-ai-box {
  background-color: var(--card-sand);
  border: 3px solid var(--ink-ochre);
  padding: 30px;
  box-shadow: var(--shadow-block);
}

.media-ai-box h3 {
  font-size: 1.65rem;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.media-ai-box .sub-p {
  color: var(--khaki-muted);
  font-size: 0.95rem;
  margin-bottom: 20px;
  font-weight: 500;
}

.tags-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.stream-tag {
  background: var(--bg-sand);
  border: 2px solid var(--ink-ochre);
  padding: 6px 14px;
  font-family: var(--font-stamp);
  font-size: 0.9rem;
  letter-spacing: 1px;
  color: var(--ink-ochre);
  display: flex;
  align-items: center;
  gap: 6px;
}

.stream-tag.active {
  background: var(--rally-orange);
  color: var(--white-stark);
}

.feature-check-list {
  list-style: none;
  border-top: 2px dashed var(--khaki-muted);
  padding-top: 15px;
}

.feature-check-list li {
  padding: 5px 0;
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.feature-check-list li::before {
  content: "■";
  color: var(--rally-orange);
  font-size: 0.8rem;
}

/* Pricing Section */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
  align-items: stretch;
}

.price-card {
  background-color: var(--card-sand);
  border: 3px solid var(--ink-ochre);
  padding: 32px 24px;
  box-shadow: var(--shadow-block);
  display: flex;
  flex-direction: column;
  position: relative;
  text-align: center;
}

.price-card.featured {
  border: 4px solid var(--rally-orange);
  transform: translateY(-8px);
  box-shadow: var(--shadow-block-lg);
}

.featured-stamp {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%) rotate(-2deg);
  background: var(--rally-orange);
  color: var(--white-stark);
  font-family: var(--font-stamp);
  font-size: 0.9rem;
  padding: 4px 16px;
  border: 2px solid var(--ink-ochre);
  letter-spacing: 1.5px;
  box-shadow: var(--shadow-block-sm);
  white-space: nowrap;
}

.price-header h3 {
  font-size: 1.6rem;
  margin-bottom: 6px;
}

.price-header .tier-desc {
  font-size: 0.88rem;
  color: var(--khaki-muted);
  font-weight: 600;
  margin-bottom: 18px;
}

.price-amount {
  margin: 10px 0 20px;
  padding: 12px 0;
  border-top: 2px dashed var(--khaki-muted);
  border-bottom: 2px dashed var(--khaki-muted);
}

.currency {
  font-size: 1.4rem;
  font-weight: 700;
  vertical-align: top;
  color: var(--rally-orange);
}

.num {
  font-family: var(--font-stamp);
  font-size: 3.5rem;
  line-height: 1;
  color: var(--ink-ochre);
}

.period {
  font-size: 0.9rem;
  color: var(--khaki-muted);
  font-weight: 600;
}

.price-features {
  list-style: none;
  text-align: left;
  margin-bottom: 28px;
  flex-grow: 1;
}

.price-features li {
  padding: 8px 0;
  font-size: 0.93rem;
  border-bottom: 1px solid rgba(46, 28, 15, 0.12);
  display: flex;
  align-items: center;
  gap: 8px;
}

.price-features li strong {
  color: var(--rally-orange);
}

/* FAQ Section */
.faq-accordion {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--card-sand);
  border: 3px solid var(--ink-ochre);
  box-shadow: var(--shadow-block-sm);
}

.faq-item summary {
  padding: 18px 22px;
  font-family: var(--font-stamp);
  font-size: 1.2rem;
  letter-spacing: 1px;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 1.5rem;
  color: var(--rally-orange);
  font-weight: 800;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-content {
  padding: 0 22px 20px;
  font-size: 0.95rem;
  color: var(--ink-ochre);
  line-height: 1.7;
  border-top: 2px dashed var(--khaki-muted);
}

/* Testimonials / User Reviews */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.review-card {
  background: var(--card-sand);
  border: 3px solid var(--ink-ochre);
  padding: 24px;
  box-shadow: var(--shadow-block);
  position: relative;
}

.review-stamp {
  position: absolute;
  top: 14px;
  right: 14px;
  font-family: var(--font-stamp);
  font-size: 0.75rem;
  padding: 2px 8px;
  background: var(--bg-sand);
  border: 1px solid var(--ink-ochre);
  color: var(--khaki-muted);
  transform: rotate(3deg);
}

.stars-rating {
  color: var(--rally-orange);
  letter-spacing: 2px;
  margin-bottom: 12px;
  font-size: 1.1rem;
}

.review-quote {
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 16px;
  font-style: normal;
}

.reviewer-meta {
  border-top: 2px dashed var(--khaki-muted);
  padding-top: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.reviewer-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--ink-ochre);
  background: var(--bg-sand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-stamp);
  font-weight: 700;
  color: var(--rally-orange);
}

.reviewer-name {
  font-weight: 700;
  font-size: 0.95rem;
}

.reviewer-tag {
  font-size: 0.78rem;
  color: var(--khaki-muted);
}

/* Footer Specification: Exactly 4 Titles Opening in New Windows */
.site-footer {
  background-color: var(--ink-ochre);
  color: var(--bg-sand);
  border-top: 4px solid var(--rally-orange);
  padding: 50px 0 35px;
}

.footer-nav-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.footer-block {
  background: #23150B;
  border: 2px solid var(--khaki-muted);
  padding: 20px 18px;
  box-shadow: 3px 3px 0px #000;
}

.footer-block h4 {
  font-family: var(--font-stamp);
  font-size: 1.3rem;
  letter-spacing: 1.2px;
  margin-bottom: 10px;
}

.footer-block h4 a {
  color: var(--bg-sand);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-block h4 a:hover {
  color: var(--rally-orange);
}

.footer-block p {
  color: var(--khaki-muted);
  font-size: 0.85rem;
  line-height: 1.5;
}

.footer-bottom {
  border-top: 1px dashed var(--khaki-muted);
  padding-top: 25px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--khaki-muted);
}

.footer-bottom p {
  color: var(--khaki-muted);
}

/* SEO Articles & Reading Template Styles */
.articles-index-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  margin-top: 30px;
}

.article-card {
  background: var(--card-sand);
  border: 3px solid var(--ink-ochre);
  padding: 26px;
  box-shadow: var(--shadow-block);
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-block-lg);
}

.article-card .badge-stamp {
  align-self: flex-start;
  margin-bottom: 12px;
}

.article-card h2, .article-card h3 {
  font-size: 1.45rem;
  margin-bottom: 10px;
  line-height: 1.3;
}

.article-card p {
  font-size: 0.95rem;
  color: var(--ink-ochre);
  margin-bottom: 18px;
  flex-grow: 1;
}

.article-card .read-more {
  font-family: var(--font-stamp);
  font-size: 1rem;
  color: var(--rally-orange);
  letter-spacing: 1px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-detail-wrap {
  max-width: 860px;
  margin: 40px auto;
  background: var(--card-sand);
  border: 3px solid var(--ink-ochre);
  padding: 40px 36px;
  box-shadow: var(--shadow-block-lg);
}

.article-detail-wrap h1 {
  font-size: 2.5rem;
  margin: 15px 0 20px;
}

.article-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  border-bottom: 2px dashed var(--khaki-muted);
  padding-bottom: 16px;
  margin-bottom: 25px;
  font-size: 0.88rem;
  color: var(--khaki-muted);
}

.article-body {
  font-size: 1.05rem;
  line-height: 1.85;
}

.article-body h2 {
  font-size: 1.8rem;
  margin: 32px 0 14px;
  border-left: 4px solid var(--rally-orange);
  padding-left: 12px;
}

.article-body h3 {
  font-size: 1.35rem;
  margin: 22px 0 10px;
}

.article-body p {
  margin-bottom: 18px;
}

.article-body ul, .article-body ol {
  margin: 0 0 20px 24px;
}

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

.article-body a {
  color: var(--rally-orange);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-body a:hover {
  background-color: var(--rally-orange);
  color: var(--white-stark);
  text-decoration: none;
}

.callout-box {
  background: var(--bg-sand);
  border: 2px solid var(--ink-ochre);
  padding: 18px 22px;
  margin: 24px 0;
  box-shadow: var(--shadow-block-sm);
}

/* Mobile Responsive */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 35px;
  }
  .cards-triad, .pricing-grid, .reviews-grid {
    grid-template-columns: 1fr;
  }
  .price-card.featured {
    transform: none;
  }
  .footer-nav-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-wrapper {
    flex-direction: column;
    align-items: flex-start;
  }
  .nav-menu {
    flex-wrap: wrap;
    gap: 10px;
    width: 100%;
  }
  .nav-actions {
    width: 100%;
    margin-top: 8px;
  }
  .nav-actions .btn-rally {
    width: 100%;
  }
  .hero-content h1 {
    font-size: 2.5rem;
  }
  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }
  .hero-buttons .btn-rally {
    width: 100%;
    min-height: 48px;
  }
  .media-ai-grid {
    grid-template-columns: 1fr;
  }
  .footer-nav-grid {
    grid-template-columns: 1fr;
  }
  .articles-index-grid {
    grid-template-columns: 1fr;
  }
  .article-detail-wrap {
    padding: 24px 18px;
  }
  .article-detail-wrap h1 {
    font-size: 1.85rem;
  }
}