/* ============== Blog Page Specific Styles ============== */

  /* Page Hero */
  .blog-hero {
    position: relative;
    background:
      linear-gradient(135deg, rgba(13, 61, 107, 0.86) 0%, rgba(30, 111, 191, 0.72) 100%),
      url("https://cs.beixiangjia.com/images/238e97a4d61aabb9582485e73f343d24ad28b5f836ad1623d0b0636bfeb93a2a.webp") center/cover no-repeat;
    color: #fff;
    padding: 96px 0 88px;
    overflow: hidden;
  }
  .blog-hero::after {
    content: "";
    position: absolute;
    right: -120px;
    top: -80px;
    width: 360px; height: 360px;
    background: radial-gradient(circle, rgba(255,255,255,0.10) 0%, transparent 70%);
    pointer-events: none;
  }
  .blog-hero .container { position: relative; z-index: 2; }
  .blog-hero-eyebrow {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(255,255,255,0.14);
    border: 1px solid rgba(255,255,255,0.22);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 20px;
    backdrop-filter: blur(8px);
  }
  .blog-hero h1 {
    color: #fff;
    max-width: 820px;
    margin-bottom: 18px;
  }
  .blog-hero p.lead {
    color: rgba(255,255,255,0.88);
    font-size: 18px;
    max-width: 720px;
    margin-bottom: 32px;
  }
  .blog-hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 36px;
    padding-top: 28px;
    border-top: 1px solid rgba(255,255,255,0.18);
    max-width: 720px;
  }
  .blog-hero-stats .stat .num {
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    line-height: 1.1;
  }
  .blog-hero-stats .stat .lbl {
    font-size: 13px;
    color: rgba(255,255,255,0.78);
    margin-top: 4px;
  }

  /* Category Filter */
  .cat-filter {
    position: sticky;
    top: 68px;
    z-index: 50;
    background: rgba(255,255,255,0.94);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--border);
  }
  .cat-filter-inner {
    display: flex;
    gap: 8px;
    padding: 16px 0;
    overflow-x: auto;
    scrollbar-width: thin;
    -ms-overflow-style: none;
  }
  .cat-filter-inner::-webkit-scrollbar { height: 4px; }
  .cat-filter-inner::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 2px; }
  .cat-pill {
    flex-shrink: 0;
    padding: 8px 18px;
    border: 1px solid var(--border-strong);
    border-radius: 999px;
    font-size: 14px;
    font-weight: 500;
    color: var(--fg-soft);
    background: #fff;
    transition: all var(--dur) var(--ease);
    white-space: nowrap;
  }
  .cat-pill:hover {
    border-color: var(--accent);
    color: var(--accent);
  }
  .cat-pill[aria-pressed="true"] {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
  }
  .cat-pill .count {
    display: inline-block;
    margin-left: 6px;
    padding: 1px 7px;
    border-radius: 999px;
    background: var(--bg-muted);
    color: var(--fg-muted);
    font-size: 12px;
    font-weight: 600;
  }
  .cat-pill[aria-pressed="true"] .count {
    background: rgba(255,255,255,0.22);
    color: #fff;
  }

  /* Blog Loop */
  .blog-loop { padding: 72px 0 96px; background: var(--bg-soft); }
  .blog-grid {
    display: grid;
    gap: 28px;
    grid-template-columns: 1fr;
  }
  @media (min-width: 640px) { .blog-grid { grid-template-columns: repeat(2, 1fr); } }
  @media (min-width: 960px) { .blog-grid { grid-template-columns: repeat(3, 1fr); } }

  .post-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all var(--dur) var(--ease);
  }
  .post-card:hover {
    border-color: var(--border-strong);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
  }
  .post-cover {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--bg-muted);
  }
  .post-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 400ms var(--ease);
  }
  .post-card:hover .post-cover img { transform: scale(1.04); }
  .post-cat {
    position: absolute;
    top: 14px;
    left: 14px;
    padding: 5px 12px;
    background: rgba(255,255,255,0.95);
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
    backdrop-filter: blur(6px);
  }
  .post-body { padding: 22px 22px 20px; flex: 1; display: flex; flex-direction: column; }
  .post-meta {
    display: flex;
    gap: 14px;
    font-size: 12px;
    color: var(--fg-muted);
    margin-bottom: 12px;
  }
  .post-meta .dot { color: var(--border-strong); }
  .post-title {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.35;
    color: var(--fg);
    margin-bottom: 10px;
  }
  .post-title a { color: inherit; }
  .post-title a:hover { color: var(--accent); }
  .post-excerpt {
    font-size: 14px;
    color: var(--fg-soft);
    line-height: 1.6;
    margin-bottom: 18px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .post-foot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 14px;
    border-top: 1px solid var(--border);
  }
  .read-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
  }
  .read-more svg { transition: transform var(--dur) var(--ease); }
  .post-card:hover .read-more svg { transform: translateX(3px); }
  .read-time { font-size: 12px; color: var(--fg-muted); }

  /* Featured post (first card spans 2 cols on desktop) */
  .post-card.featured { grid-column: span 1; }
  @media (min-width: 960px) {
    .post-card.featured { grid-column: span 2; grid-row: span 1; }
    .post-card.featured .post-cover { aspect-ratio: 21 / 9; }
    .post-card.featured .post-title { font-size: 24px; }
    .post-card.featured .post-excerpt { -webkit-line-clamp: 2; }
  }

  /* Pagination */
  .blog-pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 56px;
  }
  .pg-btn {
    min-width: 40px;
    height: 40px;
    padding: 0 14px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    background: #fff;
    font-size: 14px;
    font-weight: 500;
    color: var(--fg-soft);
    transition: all var(--dur) var(--ease);
  }
  .pg-btn:hover { border-color: var(--accent); color: var(--accent); }
  .pg-btn[aria-current="page"] {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
  }
  .pg-btn.disabled { opacity: 0.4; cursor: not-allowed; }

  /* Newsletter */
  .newsletter {
    background:
      radial-gradient(circle at 20% 20%, rgba(30, 111, 191, 0.08) 0%, transparent 50%),
      radial-gradient(circle at 80% 80%, rgba(13, 61, 107, 0.10) 0%, transparent 50%),
      linear-gradient(135deg, #0d3d6b 0%, #1e6fbf 100%);
    color: #fff;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
  }
  .newsletter::before {
    content: "";
    position: absolute;
    top: 40px; right: 60px;
    width: 200px; height: 200px;
    border-radius: 50%;
    background: rgba(255,255,255,0.04);
    pointer-events: none;
  }
  .newsletter-inner {
    display: grid;
    gap: 48px;
    grid-template-columns: 1fr;
    align-items: center;
    position: relative;
    z-index: 2;
  }
  @media (min-width: 900px) {
    .newsletter-inner { grid-template-columns: 1.2fr 1fr; }
  }
  .newsletter h2 { color: #fff; margin-bottom: 14px; }
  .newsletter p { color: rgba(255,255,255,0.86); font-size: 16px; max-width: 520px; }
  .newsletter-features {
    display: flex;
    flex-wrap: wrap;
    gap: 18px 28px;
    margin-top: 22px;
  }
  .newsletter-features .feat {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255,255,255,0.86);
  }
  .newsletter-features .feat svg { color: #7ec8ff; }
  .newsletter-form {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.14);
    border-radius: var(--radius-lg);
    padding: 28px;
    backdrop-filter: blur(10px);
  }
  .newsletter-form h3 {
    color: #fff;
    font-size: 18px;
    margin-bottom: 6px;
  }
  .newsletter-form p {
    color: rgba(255,255,255,0.78);
    font-size: 13px;
    margin-bottom: 18px;
  }
  .newsletter-form .form-row {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
  }
  .newsletter-form .form-row input {
    flex: 1;
    padding: 12px 14px;
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.22);
    background: rgba(255,255,255,0.08);
    color: #fff;
    font-size: 14px;
  }
  .newsletter-form .form-row input::placeholder { color: rgba(255,255,255,0.6); }
  .newsletter-form .form-row input:focus {
    outline: none;
    background: rgba(255,255,255,0.14);
    border-color: rgba(255,255,255,0.4);
  }
  .newsletter-form .form-row .btn {
    padding: 12px 22px;
    background: #fff;
    color: var(--accent);
  }
  .newsletter-form .form-row .btn:hover { background: var(--accent-soft); }
  .newsletter-form .form-check {
    display: flex;
    gap: 8px;
    align-items: flex-start;
    font-size: 12px;
    color: rgba(255,255,255,0.78);
  }
  .newsletter-form .form-check input { margin-top: 2px; }

/* ========================================
   Base CSS - Health Pharma B2B
   Design: Medical Blue + Pure White
   ======================================== */

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; scroll-behavior: smooth; }
body { line-height: 1.6; }
img, picture, video, canvas, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { font-weight: 600; line-height: 1.25; }
p { line-height: 1.6; }

/* ---------- Design Tokens ---------- */
:root {
  /* Brand Colors */
  --bg: #ffffff;
  --bg-soft: #f6f9fc;
  --bg-muted: #eef3f8;
  --surface: #ffffff;
  --fg: #0f1d2e;
  --fg-soft: #3d4f63;
  --fg-muted: #6b7c91;
  --border: #e2eaf2;
  --border-strong: #c9d6e3;

  /* Accent - Medical Blue */
  --accent: #1e6fbf;
  --accent-hover: #16599a;
  --accent-soft: #e8f1fa;
  --accent-deep: #0d3d6b;

  /* Status */
  --success: #1f8a5c;
  --warning: #c98512;
  --danger: #c0392b;

  /* Typography */
  --font-display: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

  /* Radius */
  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Shadow */
  --shadow-xs: 0 1px 2px rgba(15, 29, 46, 0.04);
  --shadow-sm: 0 2px 8px rgba(15, 29, 46, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 29, 46, 0.08);
  --shadow-lg: 0 16px 48px rgba(15, 29, 46, 0.12);

  /* Container */
  --container-max: 1240px;
  --container-px: 20px;

  /* Motion */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --dur: 200ms;
}

/* ---------- Base Typography ---------- */
body {
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--fg);
  background: var(--bg);
  min-height: 100vh;
}
h1 { font-size: clamp(32px, 5vw, 56px); letter-spacing: -0.02em; }
h2 { font-size: clamp(26px, 3.5vw, 40px); letter-spacing: -0.015em; }
h3 { font-size: clamp(20px, 2.4vw, 26px); }
h4 { font-size: 18px; }
h5 { font-size: 16px; }
h6 { font-size: 14px; }
p { color: var(--fg-soft); }
a { transition: color var(--dur) var(--ease); }
a:hover { color: var(--accent); }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-px);
  padding-right: var(--container-px);
}
.section {
  padding: var(--space-8) 0;
}
.section-sm { padding: var(--space-7) 0; }
.section-lg { padding: var(--space-9) 0; }
@media (min-width: 768px) {
  .section { padding: var(--space-9) 0; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 12px 22px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  border: 1px solid transparent;
  transition: all var(--dur) var(--ease);
  cursor: pointer;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-secondary {
  background: #fff;
  color: var(--fg);
  border-color: var(--border-strong);
}
.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.btn-ghost {
  background: transparent;
  color: var(--accent);
}
.btn-ghost:hover {
  background: var(--accent-soft);
}
.btn-lg { padding: 16px 28px; font-size: 16px; }
.btn-sm { padding: 8px 14px; font-size: 13px; }

/* ---------- Cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: all var(--dur) var(--ease);
}
.card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* ---------- Eyebrow / Section Heading ---------- */
.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-3);
}
.section-title {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-7);
}
.section-title h2 { margin-bottom: var(--space-3); }
.section-title p { color: var(--fg-muted); font-size: 17px; }

/* ---------- Nav ---------- */
.nav {
  position: relative;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--fg);
}
.nav-logo .logo-mark {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 700;
}
.nav-links {
  display: none;
  gap: var(--space-5);
  align-items: center;
}
.nav-links a {
  color: var(--fg-soft);
  font-size: 15px;
  font-weight: 500;
  padding: 6px 2px;
  position: relative;
}
.nav-links a:hover { color: var(--accent); }
.nav-links a[aria-current="page"] { color: var(--accent); }
.nav-links a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.nav-cta { display: none; }
.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  color: var(--fg);
}
.nav-toggle:hover { background: var(--bg-soft); }
@media (min-width: 900px) {
  .nav-links { display: flex; }
  .nav-cta { display: inline-flex; }
  .nav-toggle { display: none; }
}

/* ---------- Grid utilities ---------- */
.grid { display: grid; gap: var(--space-5); }
.grid-2 { grid-template-columns: repeat(1, 1fr); }
.grid-3 { grid-template-columns: repeat(1, 1fr); }
.grid-4 { grid-template-columns: repeat(2, 1fr); }
.grid-6 { grid-template-columns: repeat(2, 1fr); }
@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-6 { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 900px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
  .grid-6 { grid-template-columns: repeat(6, 1fr); }
}

/* ---------- Tag / Badge ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: var(--accent-soft);
  color: var(--accent);
}
.badge-outline {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--fg-soft);
}

/* ---------- Footer ---------- */
.footer {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  color: var(--fg-soft);
}
.footer a { color: var(--fg-soft); }
.footer a:hover { color: var(--accent); }
.footer-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
  padding: var(--space-8) 0;
}
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: space-between;
  align-items: center;
  padding: var(--space-5) 0;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--fg-muted);
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: var(--space-3);
}
.footer-col ul li { margin-bottom: 8px; font-size: 14px; }

/* ---------- Forms ---------- */
.input, .select, .textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: #fff;
  font-size: 15px;
  color: var(--fg);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--fg-soft);
  margin-bottom: 6px;
}
.field { margin-bottom: var(--space-4); }

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 8px 12px;
  z-index: 999;
}
.skip-link:focus { left: 8px; top: 8px; }

/* === Entrance animations === */
@keyframes w-fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes w-fade-up { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
@keyframes w-fade-down { from { opacity: 0; transform: translateY(-24px); } to { opacity: 1; transform: translateY(0); } }
@keyframes w-fade-left { from { opacity: 0; transform: translateX(24px); } to { opacity: 1; transform: translateX(0); } }
@keyframes w-fade-right { from { opacity: 0; transform: translateX(-24px); } to { opacity: 1; transform: translateX(0); } }
@keyframes w-zoom-in { from { opacity: 0; transform: scale(0.85); } to { opacity: 1; transform: scale(1); } }
@keyframes w-zoom-out { from { opacity: 0; transform: scale(1.15); } to { opacity: 1; transform: scale(1); } }
@keyframes w-flip-x { from { opacity: 0; transform: perspective(400px) rotateX(90deg); } to { opacity: 1; transform: perspective(400px) rotateX(0); } }
@keyframes w-flip-y { from { opacity: 0; transform: perspective(400px) rotateY(90deg); } to { opacity: 1; transform: perspective(400px) rotateY(0); } }
@keyframes w-bounce { 0% { opacity: 0; transform: translateY(-40px); } 60% { opacity: 1; transform: translateY(8px); } 80% { transform: translateY(-4px); } 100% { transform: translateY(0); } }
@keyframes w-rotate { from { opacity: 0; transform: rotate(-180deg); } to { opacity: 1; transform: rotate(0); } }
@keyframes w-swing { 20% { transform: rotate(15deg); } 40% { transform: rotate(-10deg); } 60% { transform: rotate(5deg); } 80% { transform: rotate(-5deg); } 100% { transform: rotate(0); } }
@keyframes w-slide-up { from { transform: translateY(100%); } to { transform: translateY(0); } }

/* === Responsive hide === */
@media (max-width: 1024px) { [data-w-hide-tablet="1"] { display: none !important; } }
@media (max-width: 640px) { [data-w-hide-mobile="1"] { display: none !important; } }
@media (min-width: 1025px) { [data-w-hide-desktop="1"] { display: none !important; } }

/* === Scroll effects === */
[data-w-scroll-effect] { will-change: transform, opacity, filter; }