/* ============================================
   黑料正能量 - 全站样式
   CSS/ID前缀: pbm-
   设计风格: 公益/社会活动 (Public Interest)
   ============================================ */

/* === Google Fonts === */
@import url('https://fonts.googleapis.com/css2?family=Roboto+Condensed:wght@400;700&family=Source+Sans+3:wght@300;400;600;700&display=swap');

/* === CSS Variables === */
:root {
  --pbm-primary: #2c3e50;
  --pbm-secondary: #ecf0f1;
  --pbm-accent: #e74c3c;
  --pbm-text: #34495e;
  --pbm-link: #3498db;
  --pbm-bg: #f8f9fa;
  --pbm-card-bg: #ffffff;
  --pbm-border: #dce1e6;
  --pbm-shadow: rgba(44, 62, 80, 0.08);
  --pbm-font-heading: 'Roboto Condensed', sans-serif;
  --pbm-font-body: 'Source Sans 3', 'Source Sans Pro', sans-serif;
}

/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--pbm-font-body);
  color: var(--pbm-text);
  background: var(--pbm-bg);
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--pbm-link); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--pbm-accent); }
ul, ol { list-style: none; }

/* === Jammer Block (hidden) === */
.bright-jammer-block { display: none !important; }

/* === Header === */
#pbm-header {
  background: var(--pbm-secondary);
  border-bottom: 2px solid var(--pbm-primary);
  padding: 0;
}
.pbm-nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1.5rem;
}
.pbm-logo img { height: 42px; width: auto; }
.pbm-nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}
.pbm-nav-links li a {
  font-family: var(--pbm-font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--pbm-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.4rem 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.pbm-nav-links li a:hover,
.pbm-nav-links li a.pbm-active {
  color: var(--pbm-link);
  border-bottom-color: var(--pbm-link);
}

/* Hamburger */
.pbm-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}
.pbm-hamburger span {
  display: block;
  width: 26px;
  height: 3px;
  background: var(--pbm-primary);
  border-radius: 2px;
  transition: 0.3s;
}

/* Mobile Nav */
.pbm-nav-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.4); z-index: 998; }
.pbm-mobile-nav {
  position: fixed;
  top: 0;
  right: -280px;
  width: 280px;
  height: 100vh;
  background: var(--pbm-secondary);
  z-index: 999;
  transition: right 0.3s ease;
  padding: 4rem 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  overflow-y: auto;
}
.pbm-mobile-nav.pbm-open { right: 0; }
.pbm-mobile-nav-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--pbm-primary);
  cursor: pointer;
}
.pbm-mobile-nav a {
  display: block;
  padding: 0.8rem 0;
  font-family: var(--pbm-font-heading);
  font-weight: 700;
  font-size: 1rem;
  color: var(--pbm-primary);
  border-bottom: 1px solid var(--pbm-border);
}
.pbm-mobile-nav a:hover { color: var(--pbm-link); }

/* === Hero Section === */
#pbm-hero {
  position: relative;
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--pbm-primary);
}
.pbm-hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}
.pbm-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(44,62,80,0.7) 0%, rgba(44,62,80,0.9) 100%);
}
.pbm-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 3rem 1.5rem;
  max-width: 800px;
}
.pbm-hero-content h1 {
  font-family: var(--pbm-font-heading);
  font-size: 2.8rem;
  color: #ffffff;
  margin-bottom: 1rem;
  letter-spacing: 1px;
}
.pbm-hero-content p {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 2rem;
  line-height: 1.8;
}
.pbm-btn-primary {
  display: inline-block;
  padding: 0.85rem 2.5rem;
  background: var(--pbm-accent);
  color: #fff;
  font-family: var(--pbm-font-heading);
  font-weight: 700;
  font-size: 1rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  text-decoration: none;
}
.pbm-btn-primary:hover {
  background: #c0392b;
  color: #fff;
  transform: translateY(-1px);
}
.pbm-btn-secondary {
  display: inline-block;
  padding: 0.75rem 2rem;
  background: transparent;
  color: #fff;
  font-family: var(--pbm-font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  border: 2px solid rgba(255,255,255,0.6);
  border-radius: 4px;
  cursor: pointer;
  transition: 0.2s;
  text-decoration: none;
}
.pbm-btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
  color: #fff;
}

/* === Sections === */
.pbm-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3.5rem 1.5rem;
}
.pbm-section-title {
  font-family: var(--pbm-font-heading);
  font-size: 1.8rem;
  color: var(--pbm-primary);
  margin-bottom: 0.5rem;
  border-left: 4px solid var(--pbm-accent);
  padding-left: 1rem;
}
.pbm-section-subtitle {
  font-size: 1rem;
  color: rgba(52,73,94,0.7);
  margin-bottom: 2rem;
  padding-left: 1.3rem;
}

/* === Card Grid === */
.pbm-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}
.pbm-card {
  background: var(--pbm-card-bg);
  border: 1px solid var(--pbm-border);
  border-radius: 6px;
  overflow: hidden;
  transition: box-shadow 0.2s, transform 0.2s;
}
.pbm-card:hover {
  box-shadow: 0 6px 20px var(--pbm-shadow);
  transform: translateY(-2px);
}
.pbm-card img { width: 100%; height: 200px; object-fit: cover; }
.pbm-card-body { padding: 1.2rem; }
.pbm-card-body h3 {
  font-family: var(--pbm-font-heading);
  font-size: 1.1rem;
  color: var(--pbm-primary);
  margin-bottom: 0.5rem;
  line-height: 1.4;
}
.pbm-card-body p {
  font-size: 0.92rem;
  color: var(--pbm-text);
  line-height: 1.6;
  margin-bottom: 0.8rem;
}
.pbm-card-meta {
  font-size: 0.8rem;
  color: rgba(52,73,94,0.5);
}
.pbm-card-tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 3px;
  margin-right: 0.5rem;
}
.pbm-tag-investigating { background: #ffeaa7; color: #d68910; }
.pbm-tag-confirmed { background: #d5f5e3; color: #1e8449; }
.pbm-tag-follow-up { background: #fadbd8; color: #c0392b; }

/* === Red-Black List === */
.pbm-rb-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
.pbm-rb-column { padding: 1.5rem; border-radius: 6px; }
.pbm-rb-red {
  background: #fef9f9;
  border: 2px solid #e74c3c;
}
.pbm-rb-black {
  background: #f4f6f7;
  border: 2px solid var(--pbm-primary);
}
.pbm-rb-column h3 {
  font-family: var(--pbm-font-heading);
  font-size: 1.3rem;
  margin-bottom: 1rem;
  text-align: center;
}
.pbm-rb-red h3 { color: #e74c3c; }
.pbm-rb-black h3 { color: var(--pbm-primary); }
.pbm-rb-item {
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--pbm-border);
  font-size: 0.92rem;
}
.pbm-rb-item:last-child { border-bottom: none; }
.pbm-rb-item strong { display: block; margin-bottom: 0.3rem; }

/* === Action Section === */
.pbm-action-banner {
  background: var(--pbm-primary);
  color: #fff;
  border-radius: 8px;
  padding: 2.5rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.pbm-action-banner img {
  width: 300px;
  height: 200px;
  object-fit: cover;
  border-radius: 6px;
  flex-shrink: 0;
}
.pbm-action-info h3 {
  font-family: var(--pbm-font-heading);
  font-size: 1.5rem;
  margin-bottom: 0.8rem;
}
.pbm-action-info p { color: rgba(255,255,255,0.8); margin-bottom: 1rem; }
.pbm-action-stats {
  display: flex;
  gap: 2rem;
  margin-bottom: 1.2rem;
}
.pbm-action-stat { text-align: center; }
.pbm-action-stat .pbm-stat-num {
  font-family: var(--pbm-font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--pbm-accent);
}
.pbm-action-stat .pbm-stat-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
}

/* === Tip Submission === */
.pbm-tip-section {
  background: var(--pbm-primary);
  padding: 3rem 1.5rem;
}
.pbm-tip-container {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}
.pbm-tip-container h2 {
  font-family: var(--pbm-font-heading);
  font-size: 1.8rem;
  color: #fff;
  margin-bottom: 0.5rem;
}
.pbm-tip-container > p {
  color: rgba(255,255,255,0.7);
  margin-bottom: 2rem;
}
.pbm-tip-form {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 8px;
  padding: 2rem;
}
.pbm-input-group {
  margin-bottom: 1rem;
}
.pbm-input-group input,
.pbm-input-group textarea,
.pbm-input-group select {
  width: 100%;
  padding: 0.85rem 1rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 4px;
  color: #fff;
  font-family: var(--pbm-font-body);
  font-size: 0.95rem;
  transition: border-color 0.2s;
}
.pbm-input-group input::placeholder,
.pbm-input-group textarea::placeholder {
  color: rgba(255,255,255,0.4);
}
.pbm-input-group input:focus,
.pbm-input-group textarea:focus {
  outline: none;
  border-color: var(--pbm-link);
}
.pbm-input-group textarea { min-height: 120px; resize: vertical; }
.pbm-encrypt-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  margin-top: 0.8rem;
}

/* === Membership === */
.pbm-membership-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.pbm-membership-card {
  background: var(--pbm-card-bg);
  border: 2px solid var(--pbm-border);
  border-radius: 8px;
  padding: 2rem;
  text-align: center;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.pbm-membership-card.pbm-featured {
  border-color: var(--pbm-accent);
  box-shadow: 0 4px 20px rgba(231,76,60,0.15);
}
.pbm-membership-badge {
  display: inline-block;
  padding: 0.3rem 1rem;
  font-family: var(--pbm-font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  border-radius: 20px;
  margin-bottom: 1rem;
}
.pbm-badge-supporter { background: #d5f5e3; color: #1e8449; }
.pbm-badge-guardian { background: #fdebd0; color: #d68910; }
.pbm-badge-pioneer { background: #fadbd8; color: #c0392b; }
.pbm-membership-price {
  font-family: var(--pbm-font-heading);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--pbm-primary);
  margin-bottom: 1rem;
}
.pbm-membership-price span {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--pbm-text);
}
.pbm-membership-features {
  text-align: left;
  margin-bottom: 1.5rem;
}
.pbm-membership-features li {
  padding: 0.4rem 0;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--pbm-border);
  padding-left: 1.2rem;
  position: relative;
}
.pbm-membership-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #27ae60;
  font-weight: 700;
}

/* === Volunteer Section === */
.pbm-volunteer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.5rem;
}
.pbm-volunteer-card {
  background: var(--pbm-card-bg);
  border: 1px solid var(--pbm-border);
  border-radius: 6px;
  padding: 1.5rem;
  text-align: center;
}
.pbm-volunteer-card h3 {
  font-family: var(--pbm-font-heading);
  font-size: 1.1rem;
  color: var(--pbm-primary);
  margin-bottom: 0.5rem;
}
.pbm-volunteer-card p {
  font-size: 0.88rem;
  color: var(--pbm-text);
  margin-bottom: 1rem;
}

/* === Media Partners === */
.pbm-media-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
  align-items: center;
  padding: 1rem 0;
}
.pbm-media-logos span {
  font-family: var(--pbm-font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: rgba(44,62,80,0.4);
  padding: 1rem 2rem;
  border: 1px solid var(--pbm-border);
  border-radius: 6px;
}

/* === APP Section === */
.pbm-app-section {
  background: var(--pbm-secondary);
  padding: 3rem 1.5rem;
  text-align: center;
}
.pbm-app-section img {
  max-width: 500px;
  margin: 0 auto 2rem;
  border-radius: 8px;
}
.pbm-app-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.pbm-app-btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  background: var(--pbm-primary);
  color: #fff;
  font-family: var(--pbm-font-heading);
  font-weight: 700;
  border-radius: 4px;
  transition: background 0.2s;
}
.pbm-app-btn:hover { background: #1a252f; color: #fff; }

/* === About Section === */
.pbm-about-brief {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}
.pbm-about-brief p {
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}

/* === Page Content (inner pages) === */
.pbm-page-header {
  background: var(--pbm-primary);
  padding: 3rem 1.5rem;
  text-align: center;
}
.pbm-page-header h1 {
  font-family: var(--pbm-font-heading);
  font-size: 2.2rem;
  color: #fff;
}
.pbm-page-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
}
.pbm-page-content h2 {
  font-family: var(--pbm-font-heading);
  font-size: 1.5rem;
  color: var(--pbm-primary);
  margin: 2rem 0 1rem;
  border-left: 3px solid var(--pbm-accent);
  padding-left: 0.8rem;
}
.pbm-page-content p {
  margin-bottom: 1.2rem;
  line-height: 1.8;
}
.pbm-page-content img {
  width: 100%;
  border-radius: 6px;
  margin: 1.5rem 0;
}
.pbm-page-content ul,
.pbm-page-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1.2rem;
}
.pbm-page-content li {
  margin-bottom: 0.5rem;
  list-style: disc;
}

/* === Ad Banner === */
.pbm-ad-banner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem;
  text-align: center;
}
.pbm-ad-banner img { margin: 0 auto; border-radius: 6px; }
.pbm-ad-banner p { font-size: 0.8rem; color: rgba(52,73,94,0.4); margin-top: 0.5rem; }

/* === Footer === */
#pbm-footer {
  background: var(--pbm-primary);
  color: rgba(255,255,255,0.7);
  padding: 3rem 1.5rem 1.5rem;
  margin-top: 2rem;
}
.pbm-footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.pbm-footer-col h4 {
  font-family: var(--pbm-font-heading);
  font-size: 1rem;
  color: #fff;
  margin-bottom: 1rem;
}
.pbm-footer-col ul li { margin-bottom: 0.5rem; }
.pbm-footer-col ul li a {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  transition: color 0.2s;
}
.pbm-footer-col ul li a:hover { color: #fff; }
.pbm-social-links { display: flex; gap: 0.8rem; margin-bottom: 0.8rem; }
.pbm-social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  color: rgba(255,255,255,0.7);
  font-size: 0.85rem;
  font-weight: 700;
  transition: 0.2s;
}
.pbm-social-links a:hover {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}
.pbm-footer-bottom {
  max-width: 1200px;
  margin: 1.5rem auto 0;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
}
.pbm-footer-bottom p { margin-bottom: 0.3rem; }
.pbm-cert-badge {
  display: inline-block;
  padding: 0.2rem 0.8rem;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 3px;
  font-size: 0.75rem;
  margin-bottom: 0.5rem;
}

/* === Responsive === */
@media (max-width: 1024px) {
  .pbm-rb-container { grid-template-columns: 1fr; }
  .pbm-action-banner { flex-direction: column; text-align: center; }
  .pbm-action-banner img { width: 100%; max-width: 400px; }
  .pbm-action-stats { justify-content: center; }
}

@media (max-width: 768px) {
  .pbm-nav-links { display: none; }
  .pbm-hamburger { display: flex; }
  .pbm-hero-content h1 { font-size: 2rem; }
  .pbm-hero-content p { font-size: 1rem; }
  .pbm-section-title { font-size: 1.4rem; }
  .pbm-footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .pbm-card-grid { grid-template-columns: 1fr; }
  .pbm-membership-grid { grid-template-columns: 1fr; }
}

@media (max-width: 360px) {
  html { font-size: 14px; }
  .pbm-hero-content h1 { font-size: 1.6rem; }
  .pbm-section { padding: 2rem 1rem; }
}