/* ==========================================================================
   赔钱机场 (peiqian-jic.sbs) - 地摊狂甩与原生态实用主义风格 CSS
   Street Vendor & Raw Bargain Neo-Brutalist Theme
   ========================================================================== */

:root {
  --bg-main: #f4f1ea;
  --bg-card: #ffffff;
  --bg-card-alt: #fefefe;
  --text-main: #111111;
  --text-muted: #444444;
  --border-black: #000000;
  
  /* Street Vendor Sticker Colors */
  --neon-green: #00ff66;
  --neon-yellow: #ffe600;
  --neon-red: #ff3355;
  --neon-cyan: #00f0ff;
  --neon-orange: #ff9900;
  
  --shadow-hard: 4px 4px 0px #000000;
  --shadow-hard-lg: 6px 6px 0px #000000;
  --shadow-hard-hover: 8px 8px 0px #000000;

  --font-heading: 'Impact', 'Arial Black', -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
}

/* Reset & Basic Setup */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border-radius: 0 !important; /* Strictly remove all rounded corners */
}

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

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  background-image: 
    radial-gradient(#000000 0.75px, transparent 0.75px);
  background-size: 24px 24px;
  background-color: #f5f3ec;
  padding: 0;
  margin: 0;
  overflow-x: hidden;
}

a {
  color: var(--text-main);
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border: 2px solid var(--border-black);
}

/* Top Notification Banner */
.top-notice-bar {
  background: var(--neon-yellow);
  border-bottom: 2px solid var(--border-black);
  padding: 8px 15px;
  text-align: center;
  font-weight: 900;
  font-size: 0.95rem;
  letter-spacing: 0.5px;
}
.top-notice-bar span {
  background: var(--neon-red);
  color: #fff;
  padding: 2px 8px;
  margin-right: 8px;
  border: 2px solid var(--border-black);
  display: inline-block;
  transform: rotate(-1deg);
}

/* Header & Nav */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-main);
  border-bottom: 3px solid var(--border-black);
  padding: 12px 0;
}

.container {
  width: 92%;
  max-width: 1200px;
  margin: 0 auto;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--text-main);
  text-transform: uppercase;
}

.brand-badge {
  background: var(--neon-green);
  border: 2px solid var(--border-black);
  padding: 3px 8px;
  font-size: 0.8rem;
  box-shadow: 2px 2px 0 var(--border-black);
  transform: rotate(-2deg);
}

.nav-links {
  display: flex;
  gap: 20px;
  align-items: center;
  list-style: none;
}

.nav-links a {
  font-weight: 700;
  font-size: 0.95rem;
  padding: 4px 8px;
  border: 2px solid transparent;
  transition: all 0.15s ease;
}

.nav-links a:hover {
  background: var(--neon-yellow);
  border: 2px solid var(--border-black);
  box-shadow: 2px 2px 0 var(--border-black);
}

/* Hard Neo-Brutalist Buttons */
.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--neon-green);
  color: var(--text-main);
  font-weight: 900;
  font-size: 1.1rem;
  padding: 12px 24px;
  border: 3px solid var(--border-black);
  box-shadow: var(--shadow-hard);
  cursor: pointer;
  transition: all 0.15s ease;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-cta:hover {
  background: #00e65c;
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow-hard-hover);
}

.btn-cta:active {
  transform: translate(0px, 0px);
  box-shadow: 2px 2px 0 var(--border-black);
}

.btn-cta-secondary {
  background: var(--neon-yellow);
}

.btn-cta-secondary:hover {
  background: #ebd400;
}

.btn-cta-danger {
  background: var(--neon-red);
  color: #ffffff;
}

/* Tape Badges & Stickers */
.tape-sticker {
  display: inline-block;
  background: var(--neon-yellow);
  border: 2px solid var(--border-black);
  padding: 4px 12px;
  font-weight: 900;
  font-size: 0.9rem;
  box-shadow: 3px 3px 0 var(--border-black);
  transform: rotate(-1.5deg);
  margin-bottom: 10px;
}

.tape-sticker.green {
  background: var(--neon-green);
}
.tape-sticker.red {
  background: var(--neon-red);
  color: #fff;
}
.tape-sticker.cyan {
  background: var(--neon-cyan);
}

/* Hero Section */
.hero-section {
  padding: 50px 0 40px;
  border-bottom: 3px solid var(--border-black);
  background: #efece4;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 30px;
  align-items: center;
}

.hero-content h1 {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  line-height: 1.15;
  font-weight: 900;
  margin-bottom: 16px;
  background: #ffffff;
  padding: 15px;
  border: 3px solid var(--border-black);
  box-shadow: var(--shadow-hard-lg);
}

.hero-content h1 span.highlight {
  background: var(--neon-yellow);
  padding: 0 6px;
  border: 2px solid var(--border-black);
}

.hero-subtitle {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 25px;
  background: #ffffff;
  padding: 12px 16px;
  border: 2px solid var(--border-black);
  box-shadow: 3px 3px 0 var(--border-black);
}

.hero-actions {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 25px;
}

.hero-tags-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.hero-tag {
  background: #ffffff;
  border: 2px solid var(--border-black);
  padding: 6px 12px;
  font-weight: 800;
  font-size: 0.85rem;
}

.hero-img-box {
  border: 3px solid var(--border-black);
  box-shadow: var(--shadow-hard-lg);
  background: #fff;
  padding: 8px;
}

/* Feature Cards / Core Advantages */
.section {
  padding: 60px 0;
  border-bottom: 3px solid var(--border-black);
}

.section-title-wrap {
  text-align: center;
  margin-bottom: 40px;
}

.section-title {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 2.2rem;
  background: var(--neon-yellow);
  border: 3px solid var(--border-black);
  padding: 10px 24px;
  box-shadow: var(--shadow-hard);
  transform: rotate(-0.8deg);
}

.section-subtitle {
  font-size: 1.05rem;
  font-weight: 700;
  margin-top: 15px;
  color: var(--text-muted);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 25px;
}

.feature-card {
  background: var(--bg-card);
  border: 3px solid var(--border-black);
  padding: 25px;
  box-shadow: var(--shadow-hard);
  transition: all 0.15s ease;
  position: relative;
}

.feature-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow-hard-hover);
}

.feature-icon {
  font-size: 2.2rem;
  margin-bottom: 12px;
  display: inline-block;
  background: var(--neon-green);
  border: 2px solid var(--border-black);
  width: 55px;
  height: 55px;
  line-height: 50px;
  text-align: center;
  box-shadow: 2px 2px 0 var(--border-black);
}

.feature-card h3 {
  font-size: 1.3rem;
  font-weight: 900;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Pricing Grid - Based on Reference Image */
.pricing-section {
  background: #eef2e6;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 20px;
}

@media (max-width: 1024px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 600px) {
  .pricing-grid {
    grid-template-columns: 1fr;
  }
}

.pricing-card {
  background: #ffffff;
  border: 3px solid var(--border-black);
  padding: 28px 20px;
  box-shadow: var(--shadow-hard);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: all 0.15s ease;
}

.pricing-card.featured {
  border: 4px solid var(--border-black);
  background: #ffffff;
  box-shadow: 8px 8px 0 var(--border-black);
  transform: scale(1.03);
}

.pricing-card.featured .popular-tag {
  position: absolute;
  top: -16px;
  right: 15px;
  background: var(--neon-red);
  color: #ffffff;
  font-weight: 900;
  font-size: 0.85rem;
  padding: 4px 10px;
  border: 2px solid var(--border-black);
  box-shadow: 2px 2px 0 var(--border-black);
  transform: rotate(2deg);
}

.pricing-badge {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--text-muted);
  margin-bottom: 6px;
  display: block;
}

.pricing-title {
  font-size: 1.6rem;
  font-weight: 900;
  margin-bottom: 4px;
}

.pricing-desc {
  font-size: 0.85rem;
  color: #666;
  margin-bottom: 20px;
  min-height: 38px;
}

.pricing-price {
  font-size: 2.3rem;
  font-family: var(--font-heading);
  font-weight: 900;
  color: #e62e00;
  margin-bottom: 20px;
  border-bottom: 2px dashed #000;
  padding-bottom: 12px;
}

.pricing-price span {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-family: var(--font-body);
}

.pricing-features {
  list-style: none;
  margin-bottom: 25px;
  font-size: 0.9rem;
}

.pricing-features li {
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.pricing-features li::before {
  content: "✓";
  color: #009933;
  font-weight: 900;
  font-size: 1.1rem;
}

.pricing-card .btn-cta {
  width: 100%;
  padding: 10px 15px;
  font-size: 1rem;
}

/* User Personas / Target Audience */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.audience-card {
  background: #ffffff;
  border: 2px solid var(--border-black);
  padding: 20px;
  box-shadow: 3px 3px 0 var(--border-black);
}

.audience-card h4 {
  font-size: 1.15rem;
  font-weight: 900;
  margin-bottom: 8px;
  background: var(--neon-cyan);
  display: inline-block;
  padding: 2px 8px;
  border: 1.5px solid var(--border-black);
}

/* Tutorial Section */
.tutorial-section {
  background: #f7f4ed;
}

.tutorial-tabs-container {
  border: 3px solid var(--border-black);
  background: #ffffff;
  box-shadow: var(--shadow-hard-lg);
  padding: 25px;
}

.tutorial-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

@media (max-width: 768px) {
  .tutorial-grid {
    grid-template-columns: 1fr;
  }
}

.tutorial-step-list {
  list-style: none;
}

.tutorial-step-item {
  display: flex;
  gap: 15px;
  margin-bottom: 20px;
  background: #f9f8f3;
  border: 2px solid var(--border-black);
  padding: 15px;
  box-shadow: 3px 3px 0 var(--border-black);
}

.step-num {
  background: var(--neon-yellow);
  border: 2px solid var(--border-black);
  width: 38px;
  height: 38px;
  line-height: 34px;
  text-align: center;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.step-content h4 {
  font-size: 1.05rem;
  font-weight: 900;
  margin-bottom: 4px;
}

.step-content p {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* Code Snippet Box */
.code-box {
  background: #1e1e1e;
  color: #00ff66;
  font-family: "Courier New", Courier, monospace;
  padding: 12px 15px;
  border: 2px solid var(--border-black);
  margin-top: 8px;
  font-size: 0.85rem;
  word-break: break-all;
}

/* Reviews Grid */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.review-card {
  background: #ffffff;
  border: 2px solid var(--border-black);
  padding: 20px;
  box-shadow: var(--shadow-hard);
  position: relative;
}

.review-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  border-bottom: 2px dashed #ddd;
  padding-bottom: 8px;
}

.review-user {
  font-weight: 900;
  font-size: 0.95rem;
}

.review-rating {
  color: #ff9900;
  font-weight: 900;
}

.review-body {
  font-size: 0.92rem;
  color: #333;
}

/* FAQ Accordion */
.faq-grid {
  display: flex;
  flex-direction: column;
  gap: 15px;
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: #ffffff;
  border: 3px solid var(--border-black);
  box-shadow: 3px 3px 0 var(--border-black);
}

.faq-question {
  padding: 18px 20px;
  font-weight: 900;
  font-size: 1.05rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #ffffff;
  border: none;
  width: 100%;
  text-align: left;
}

.faq-question:hover {
  background: #faf8f0;
}

.faq-icon {
  font-size: 1.2rem;
  font-weight: 900;
}

.faq-answer {
  padding: 0 20px 18px 20px;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  border-top: 2px dashed #000;
  padding-top: 12px;
}

/* Articles Directory Grid */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 25px;
}

.article-card {
  background: #ffffff;
  border: 3px solid var(--border-black);
  box-shadow: var(--shadow-hard);
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.15s ease;
}

.article-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow-hard-hover);
}

.article-card-tag {
  background: var(--neon-yellow);
  border: 1.5px solid var(--border-black);
  padding: 2px 8px;
  font-size: 0.75rem;
  font-weight: 900;
  align-self: flex-start;
  margin-bottom: 10px;
}

.article-card h3 {
  font-size: 1.15rem;
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 10px;
}

.article-card h3 a:hover {
  color: #008037;
  text-decoration: underline;
}

.article-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 15px;
}

.article-card-meta {
  font-size: 0.8rem;
  color: #777;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid #eee;
  padding-top: 10px;
}

/* Article Detail Page Layout */
.article-page-header {
  background: #efece4;
  padding: 40px 0;
  border-bottom: 3px solid var(--border-black);
}

.breadcrumb {
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 15px;
}

.breadcrumb a {
  text-decoration: underline;
}

.article-title-main {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  line-height: 1.25;
  font-weight: 900;
  background: #ffffff;
  border: 3px solid var(--border-black);
  padding: 15px 20px;
  box-shadow: var(--shadow-hard-lg);
  margin-bottom: 15px;
}

.article-body-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 35px;
  padding: 40px 0;
}

@media (max-width: 900px) {
  .article-body-layout {
    grid-template-columns: 1fr;
  }
}

.article-content {
  background: #ffffff;
  border: 3px solid var(--border-black);
  padding: 35px;
  box-shadow: var(--shadow-hard);
  font-size: 1.05rem;
  line-height: 1.8;
}

.article-content h2 {
  font-size: 1.5rem;
  font-weight: 900;
  margin: 30px 0 15px;
  background: var(--neon-yellow);
  border: 2px solid var(--border-black);
  padding: 6px 14px;
  display: inline-block;
  box-shadow: 3px 3px 0 var(--border-black);
}

.article-content h3 {
  font-size: 1.2rem;
  font-weight: 900;
  margin: 22px 0 10px;
  border-left: 4px solid var(--border-black);
  padding-left: 10px;
}

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

.article-content ul, .article-content ol {
  margin: 0 0 20px 25px;
}

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

.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.sidebar-widget {
  background: #ffffff;
  border: 3px solid var(--border-black);
  padding: 20px;
  box-shadow: var(--shadow-hard);
}

.sidebar-widget h4 {
  font-size: 1.1rem;
  font-weight: 900;
  background: var(--neon-green);
  border: 2px solid var(--border-black);
  padding: 5px 10px;
  margin-bottom: 15px;
}

/* Legal & Standard Footer */
.footer {
  background: #111111;
  color: #ffffff;
  border-top: 4px solid var(--border-black);
  padding: 50px 0 30px;
}

.footer a {
  color: var(--neon-yellow);
}

.footer a:hover {
  text-decoration: underline;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 30px;
  margin-bottom: 40px;
}

@media (max-width: 800px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 500px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-col h5 {
  font-size: 1.1rem;
  font-weight: 900;
  margin-bottom: 15px;
  color: var(--neon-green);
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 8px;
  font-size: 0.9rem;
}

.footer-bottom {
  text-align: center;
  border-top: 1px solid #333;
  padding-top: 20px;
  font-size: 0.85rem;
  color: #aaa;
}

/* Floating Bottom Sticky CTA for Mobile */
.mobile-sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  background: #ffffff;
  border-top: 3px solid var(--border-black);
  padding: 10px 15px;
  box-shadow: 0 -4px 10px rgba(0,0,0,0.15);
}

@media (max-width: 768px) {
  .mobile-sticky-cta {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-content h1 {
    font-size: 2.1rem;
  }
}