/* ============================================================
   ewave-style.css — eWave / 162425 模板主样式
   深色渐变主题 + header/nav/section/footer 布局
   ============================================================ */

:root {
  --primary: #667eea;
  --secondary: #764ba2;
  --primary-rgb: 102, 126, 234;
  --bg: #0f0f1a;
  --bg-soft: #1a1a2e;
  --bg-card: rgba(255, 255, 255, 0.06);
  --bg-card-hover: rgba(255, 255, 255, 0.12);
  --text: #f5f5f7;
  --text-muted: #9ca3af;
  --border: rgba(255, 255, 255, 0.12);
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
  --max-width: 1240px;
  --header-h: 64px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  background-image: linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 50%, #16213e 100%);
  background-attachment: fixed;
  color: var(--text);
  line-height: 1.6;
  font-size: 15px;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; transition: color .2s; }
a:hover { color: var(--primary); }

img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 16px;
}

/* ── Header ── */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 15, 26, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 16px;
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 20px;
}
.logo {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: .5px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  white-space: nowrap;
  flex-shrink: 0;
}
.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}
.nav > a {
  padding: 7px 13px;
  border-radius: var(--radius-sm);
  font-size: .92rem;
  color: var(--text-muted);
  transition: all .2s;
}
.nav > a:hover {
  color: var(--text);
  background: var(--bg-card);
}
.search-form {
  display: flex;
  gap: 8px;
  margin-left: auto;
  max-width: 320px;
  width: 100%;
}
.search-form input {
  flex: 1;
  min-width: 0;
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  font-size: .9rem;
  outline: none;
  transition: border-color .2s;
}
.search-form input:focus { border-color: var(--primary); }
.search-form input::placeholder { color: var(--text-muted); }
.search-form button {
  padding: 9px 18px;
  border: 0;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-weight: 600;
  font-size: .9rem;
  cursor: pointer;
  white-space: nowrap;
  transition: transform .15s, box-shadow .2s;
}
.search-form button:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(var(--primary-rgb), .4); }

/* ── Main / Sections ── */
main { min-height: 50vh; padding-bottom: 40px; }

.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 28px 16px 8px;
}
.section .container { padding: 0; }
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.section-head h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
  position: relative;
  padding-left: 14px;
}
.section-head h2::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 4px; height: 20px;
  border-radius: 2px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
}
.more-link {
  font-size: .85rem;
  color: var(--text-muted);
  white-space: nowrap;
}
.more-link:hover { color: var(--primary); }

/* ── News grid ── */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}
.news-grid > article,
.news-grid > .news-card,
.news-grid > a {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .2s, border-color .2s, background .2s;
}
.news-grid > article:hover,
.news-grid > .news-card:hover,
.news-grid > a:hover {
  transform: translateY(-3px);
  border-color: rgba(var(--primary-rgb), .5);
  background: var(--bg-card-hover);
}

/* ── Footer ── */
.footer {
  margin-top: 40px;
  background: rgba(0, 0, 0, 0.35);
  border-top: 1px solid var(--border);
  padding: 28px 16px 20px;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: .82rem;
  color: var(--text-muted);
}
.footer-contact-info,
.footer-legal-links,
.footer-sitemaps,
.footer-friends,
.footer-partners,
.footer-copyright {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  align-items: center;
}
.footer-label { color: var(--text); font-weight: 600; margin-right: 2px; }
.footer-separator { opacity: .4; }
.footer-legal-links a,
.footer-sitemaps a,
.footer-friends a,
.footer-partners a {
  color: var(--text-muted);
  font-size: .8rem;
}
.footer-legal-links a:hover,
.footer-sitemaps a:hover,
.footer-friends a:hover,
.footer-partners a:hover { color: var(--primary); }
.footer-copyright,
.copyright,
.copyright-zh,
.copyright-en {
  color: var(--text-muted);
  font-size: .78rem;
  opacity: .85;
}
.icp-info { color: var(--text-muted); font-size: .78rem; margin: 4px 0; }
.footer-friends a,
.footer-partners a,
.footer-sitemaps a { display: inline-block; }

/* ── Accessibility helpers ── */
.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute;
  left: -9999px; top: 0;
  z-index: 9999;
  padding: 10px 16px;
  background: var(--primary);
  color: #fff;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .header-inner { gap: 10px; height: auto; padding: 10px 16px; flex-wrap: wrap; }
  .logo { font-size: 1.15rem; }
  .nav { order: 3; width: 100%; justify-content: flex-start; overflow-x: auto; padding-bottom: 4px; }
  .nav > a { padding: 6px 10px; font-size: .85rem; white-space: nowrap; }
  .search-form { margin-left: 0; max-width: none; order: 2; }
  .section { padding: 20px 12px 6px; }
  .section-head h2 { font-size: 1.1rem; }
  .news-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
  .footer-inner { gap: 8px; }
}