/* ===================================================================
   医疗信息门户 - 全局样式
   主题: 医疗蓝 + 生命绿
   视觉: 玻璃拟态 / 磁吸 / 滚动动效 / 明暗双主题
   =================================================================== */

:root {
  /* 主题色 - 医疗蓝主调 */
  --primary-50:  #eaf4ff;
  --primary-100: #d4e7ff;
  --primary-200: #aacfff;
  --primary-300: #79b1ff;
  --primary-400: #4d93fb;
  --primary-500: #2876f0;
  --primary-600: #1c5cd8;
  --primary-700: #1749ad;
  --primary-800: #173d87;
  --primary-900: #163269;

  /* 生命绿 - 强调 */
  --accent-400: #2dd4a7;
  --accent-500: #10b88a;
  --accent-600: #0a966f;

  /* 中性 */
  --ink-50:  #f8fafc;
  --ink-100: #f1f5f9;
  --ink-200: #e2e8f0;
  --ink-300: #cbd5e1;
  --ink-400: #94a3b8;
  --ink-500: #64748b;
  --ink-600: #475569;
  --ink-700: #334155;
  --ink-800: #1e293b;
  --ink-900: #0f172a;
  --ink-950: #020617;

  /* 背景 */
  --bg-base: #f7fafd;
  --bg-card: rgba(255, 255, 255, 0.72);
  --bg-glass: rgba(255, 255, 255, 0.55);
  --border-glass: rgba(255, 255, 255, 0.65);
  --shadow-glass: 0 8px 32px rgba(40, 118, 240, 0.08);

  /* 状态色 */
  --success: #10b981;
  --warning: #f59e0b;
  --danger:  #ef4444;
  --info:    #0ea5e9;

  /* 字号 */
  --fs-hero: clamp(2.2rem, 5vw, 3.8rem);
  --fs-h1:   clamp(1.8rem, 3.6vw, 2.6rem);
  --fs-h2:   clamp(1.4rem, 2.6vw, 1.9rem);
  --fs-h3:   1.2rem;
  --fs-body: 1rem;
  --fs-sm:   0.875rem;
  --fs-xs:   0.75rem;

  /* 圆角 */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 28px;
  --r-2xl: 36px;

  /* 间距 */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-8: 32px;
  --sp-10: 40px;
  --sp-12: 48px;
  --sp-16: 64px;
  --sp-20: 80px;

  /* 缓动 */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.7, 0, 0.3, 1);
  --ease-elastic: cubic-bezier(0.34, 1.56, 0.64, 1);

  /* 字体 */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Consolas, Monaco, monospace;
}

/* ============== 深色主题 ============== */
[data-theme="dark"] {
  --bg-base: #0a0f1c;
  --bg-card: rgba(20, 30, 50, 0.7);
  --bg-glass: rgba(20, 30, 50, 0.55);
  --border-glass: rgba(120, 170, 255, 0.15);
  --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.4);
  --ink-50:  #0f172a;
  --ink-100: #1e293b;
  --ink-200: #334155;
  --ink-300: #475569;
  --ink-400: #94a3b8;
  --ink-500: #cbd5e1;
  --ink-600: #e2e8f0;
  --ink-700: #f1f5f9;
  --ink-800: #f8fafc;
  --ink-900: #ffffff;
}

/* ============== 重置 ============== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--ink-800);
  background: var(--bg-base);
  min-height: 100dvh;
  transition: background-color .35s var(--ease-out), color .35s var(--ease-out);
  overflow-x: hidden;
}
img, video, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; border: none; background: none; }
ul { list-style: none; }

/* ============== 背景渐变 ============== */
.bg-aurora {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background:
    radial-gradient(ellipse 80% 50% at 20% 0%, rgba(40,118,240,.18), transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 30%, rgba(16,184,138,.15), transparent 60%),
    radial-gradient(ellipse 100% 60% at 50% 100%, rgba(40,118,240,.08), transparent 70%);
  filter: blur(40px);
  animation: aurora-float 30s ease-in-out infinite alternate;
}
[data-theme="dark"] .bg-aurora {
  background:
    radial-gradient(ellipse 80% 50% at 20% 0%, rgba(40,118,240,.25), transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 30%, rgba(16,184,138,.18), transparent 60%),
    radial-gradient(ellipse 100% 60% at 50% 100%, rgba(40,118,240,.12), transparent 70%);
}
@keyframes aurora-float {
  0%   { transform: translate(0,0) scale(1); }
  100% { transform: translate(-3%, 2%) scale(1.05); }
}

/* 网格背景 */
.bg-grid {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .35;
  background-image:
    linear-gradient(var(--ink-200) 1px, transparent 1px),
    linear-gradient(90deg, var(--ink-200) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
[data-theme="dark"] .bg-grid { opacity: .12; }

/* ============== 容器 ============== */
.container { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 var(--sp-5); }
.container-sm { max-width: 960px; }
@media (min-width: 768px) { .container { padding: 0 var(--sp-8); } }

/* ============== 导航栏 ============== */
.nav {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: var(--bg-glass);
  border-bottom: 1px solid var(--border-glass);
  transition: all .3s var(--ease-out);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px; gap: var(--sp-6);
}
.brand {
  display: flex; align-items: center; gap: var(--sp-3);
  font-weight: 700; font-size: 1.15rem; letter-spacing: -.02em;
}
.brand-mark {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary-500), var(--accent-500));
  display: grid; place-items: center; color: white;
  box-shadow: 0 4px 14px rgba(40,118,240,.35);
}
.brand-mark svg { width: 22px; height: 22px; }
.brand-text strong { display: block; line-height: 1.1; }
.brand-text small { color: var(--ink-500); font-size: 0.72rem; font-weight: 400; }

.nav-links { display: none; gap: var(--sp-2); }
@media (min-width: 900px) { .nav-links { display: flex; } }
.nav-link {
  padding: 8px 14px; border-radius: 10px; font-size: 0.92rem;
  color: var(--ink-700); font-weight: 500;
  transition: all .2s var(--ease-out);
  position: relative;
}
.nav-link:hover { background: var(--primary-50); color: var(--primary-600); }
[data-theme="dark"] .nav-link:hover { background: rgba(40,118,240,.12); }
.nav-link.active { color: var(--primary-600); font-weight: 600; }
.nav-link.active::after {
  content: ''; position: absolute; left: 50%; bottom: -4px;
  transform: translateX(-50%); width: 16px; height: 2px;
  background: var(--primary-500); border-radius: 2px;
}

.nav-tools { display: flex; align-items: center; gap: var(--sp-2); }

.icon-btn {
  width: 40px; height: 40px; border-radius: 10px;
  display: grid; place-items: center;
  color: var(--ink-600);
  transition: all .2s var(--ease-out);
}
.icon-btn:hover { background: var(--ink-100); color: var(--ink-900); }
[data-theme="dark"] .icon-btn:hover { background: rgba(255,255,255,.05); }

/* ============== 按钮 ============== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 20px; border-radius: 12px; font-weight: 600; font-size: 0.92rem;
  transition: all .25s var(--ease-out);
  white-space: nowrap;
  position: relative; overflow: hidden;
}
.btn:active { transform: scale(0.97); }
.btn-primary {
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  color: white;
  box-shadow: 0 4px 16px rgba(40,118,240,.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(40,118,240,.5);
}
.btn-ghost {
  background: transparent; color: var(--ink-700);
  border: 1px solid var(--ink-200);
}
.btn-ghost:hover { background: var(--ink-50); border-color: var(--ink-300); }
[data-theme="dark"] .btn-ghost { border-color: rgba(255,255,255,.1); }
[data-theme="dark"] .btn-ghost:hover { background: rgba(255,255,255,.05); }
.btn-success {
  background: linear-gradient(135deg, var(--accent-500), var(--accent-600));
  color: white;
  box-shadow: 0 4px 16px rgba(16,184,138,.3);
}
.btn-sm { padding: 6px 12px; font-size: 0.82rem; }
.btn-lg { padding: 14px 28px; font-size: 1rem; }

/* 磁吸效果 */
.magnetic { transition: transform .3s var(--ease-out); }

/* ============== 卡片 / 玻璃 ============== */
.glass {
  background: var(--bg-card);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--border-glass);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-glass);
}
.card {
  background: var(--bg-card);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--border-glass);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  transition: all .3s var(--ease-out);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(40,118,240,.12);
  border-color: rgba(40,118,240,.3);
}

/* ============== 标签 ============== */
.tag {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: 999px; font-size: 0.75rem;
  font-weight: 500; background: var(--primary-50); color: var(--primary-700);
}
.tag-success { background: rgba(16,184,138,.12); color: var(--accent-600); }
.tag-warning { background: rgba(245,158,11,.12); color: #b45309; }
.tag-danger  { background: rgba(239,68,68,.12);  color: #b91c1c; }
.tag-info    { background: rgba(14,165,233,.12); color: #0369a1; }
.tag-ghost   { background: var(--ink-100); color: var(--ink-600); }
[data-theme="dark"] .tag-ghost { background: rgba(255,255,255,.06); color: var(--ink-500); }

/* ============== 文本 ============== */
.text-hero { font-size: var(--fs-hero); font-weight: 800; letter-spacing: -.03em; line-height: 1.1; }
.text-h1   { font-size: var(--fs-h1);   font-weight: 700; letter-spacing: -.02em; }
.text-h2   { font-size: var(--fs-h2);   font-weight: 700; letter-spacing: -.015em; }
.text-h3   { font-size: var(--fs-h3);   font-weight: 600; }
.text-muted { color: var(--ink-500); }
.text-soft  { color: var(--ink-600); }
.text-grad {
  background: linear-gradient(135deg, var(--primary-600), var(--accent-500));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* ============== Hero ============== */
.hero {
  padding: var(--sp-20) 0 var(--sp-16);
  position: relative;
}
.hero-grid {
  display: grid; gap: var(--sp-12);
  grid-template-columns: 1fr; align-items: center;
}
@media (min-width: 960px) {
  .hero-grid { grid-template-columns: 1.1fr 1fr; gap: var(--sp-16); }
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: 999px;
  background: linear-gradient(135deg, var(--primary-50), rgba(16,184,138,.1));
  color: var(--primary-700); font-size: 0.82rem; font-weight: 600;
  border: 1px solid rgba(40,118,240,.2);
  margin-bottom: var(--sp-5);
}
[data-theme="dark"] .hero-eyebrow { color: var(--primary-300); background: rgba(40,118,240,.1); }
.hero-eyebrow::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-500); box-shadow: 0 0 0 4px rgba(16,184,138,.2);
  animation: pulse-dot 2s var(--ease-in-out) infinite;
}
@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.2); opacity: .7; }
}
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--sp-3); margin-top: var(--sp-8); }
.hero-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-6);
  margin-top: var(--sp-10);
  padding-top: var(--sp-6); border-top: 1px solid var(--ink-200);
}
[data-theme="dark"] .hero-stats { border-color: rgba(255,255,255,.08); }
.stat-num {
  font-size: 1.8rem; font-weight: 800; letter-spacing: -.02em;
  background: linear-gradient(135deg, var(--primary-600), var(--accent-500));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.stat-label { font-size: 0.82rem; color: var(--ink-500); margin-top: 2px; }

/* Hero 右侧卡片堆叠 */
.hero-visual { position: relative; height: 480px; }
@media (max-width: 960px) { .hero-visual { height: 360px; } }
.floating-card {
  position: absolute; padding: var(--sp-5);
  border-radius: var(--r-lg);
  background: var(--bg-card);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--border-glass);
  box-shadow: 0 20px 50px rgba(40,118,240,.15);
  animation: float 6s var(--ease-in-out) infinite;
}
.floating-card.c1 { top: 20px; left: 0; width: 240px; animation-delay: 0s; }
.floating-card.c2 { top: 50%; right: 0; transform: translateY(-50%); width: 260px; animation-delay: -2s; }
.floating-card.c3 { bottom: 20px; left: 30%; width: 220px; animation-delay: -4s; }
@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(1deg); }
}
.floating-card.c2 { animation-name: float-x; }
@keyframes float-x {
  0%, 100% { transform: translateY(-50%) translateX(0); }
  50% { transform: translateY(-50%) translateX(-8px); }
}

/* ============== 网格 / 卡片列表 ============== */
.grid { display: grid; gap: var(--sp-5); }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }
@media (min-width: 640px)  { .grid-2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 768px)  { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px)  { .grid-3 { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 640px)  { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px)  { .grid-4 { grid-template-columns: repeat(4, 1fr); } }

/* ============== 文章卡片 ============== */
.article-card {
  display: flex; flex-direction: column;
  padding: 0; overflow: hidden;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--r-lg);
  transition: all .35s var(--ease-out);
  position: relative;
}
.article-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(40,118,240,.18);
  border-color: rgba(40,118,240,.3);
}
.article-thumb {
  position: relative; aspect-ratio: 16/10;
  background: linear-gradient(135deg, var(--primary-100), var(--accent-400));
  display: grid; place-items: center; color: white;
  overflow: hidden;
}
.article-thumb::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(255,255,255,.4), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255,255,255,.2), transparent 50%);
}
.article-thumb-icon { font-size: 3rem; opacity: .9; }
.article-cat {
  position: absolute; top: 12px; left: 12px;
  padding: 4px 10px; border-radius: 999px;
  background: rgba(255,255,255,.95); color: var(--primary-700);
  font-size: 0.72rem; font-weight: 600;
  backdrop-filter: blur(8px);
}
.article-body { padding: var(--sp-5); display: flex; flex-direction: column; gap: 8px; flex: 1; }
.article-title { font-size: 1.05rem; font-weight: 700; line-height: 1.4; }
.article-meta { display: flex; align-items: center; gap: 12px; font-size: 0.78rem; color: var(--ink-500); margin-top: auto; padding-top: 12px; }
.article-meta-dot { width: 3px; height: 3px; border-radius: 50%; background: var(--ink-400); }

/* ============== 搜索框 ============== */
.search-box {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px; border-radius: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(12px);
  transition: all .25s var(--ease-out);
}
.search-box:focus-within { border-color: var(--primary-500); box-shadow: 0 0 0 4px rgba(40,118,240,.12); }
.search-box input { flex: 1; border: none; outline: none; background: transparent; font-size: 0.95rem; }
.search-box svg { color: var(--ink-400); width: 18px; height: 18px; flex-shrink: 0; }

/* ============== 表单 ============== */
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 0.85rem; font-weight: 600; color: var(--ink-700); }
.field-hint { font-size: 0.78rem; color: var(--ink-500); }
.input, .textarea, .select {
  width: 100%; padding: 10px 14px; border-radius: 10px;
  background: var(--bg-base);
  border: 1px solid var(--ink-200);
  font-size: 0.95rem;
  transition: all .2s var(--ease-out);
}
[data-theme="dark"] .input, [data-theme="dark"] .textarea, [data-theme="dark"] .select {
  background: rgba(255,255,255,.04); border-color: rgba(255,255,255,.1); color: var(--ink-800);
}
.input:focus, .textarea:focus, .select:focus {
  outline: none; border-color: var(--primary-500);
  box-shadow: 0 0 0 4px rgba(40,118,240,.12);
}
.textarea { resize: vertical; min-height: 120px; font-family: inherit; }
.select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 36px; }

/* ============== Footer ============== */
.footer {
  margin-top: var(--sp-20);
  padding: var(--sp-12) 0 var(--sp-6);
  border-top: 1px solid var(--border-glass);
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
}
.footer-grid {
  display: grid; gap: var(--sp-8);
  grid-template-columns: 1fr;
  margin-bottom: var(--sp-8);
}
@media (min-width: 768px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }
.footer-col h4 { font-size: 0.85rem; font-weight: 700; margin-bottom: 12px; color: var(--ink-700); }
.footer-col a { display: block; padding: 4px 0; font-size: 0.88rem; color: var(--ink-500); transition: color .2s; }
.footer-col a:hover { color: var(--primary-500); }
.footer-bottom {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px;
  padding-top: var(--sp-6); border-top: 1px solid var(--ink-200);
  font-size: 0.8rem; color: var(--ink-500);
}
[data-theme="dark"] .footer-bottom { border-color: rgba(255,255,255,.06); }
.beian {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 6px;
  background: var(--ink-100); font-family: var(--font-mono);
  color: var(--ink-600);
}
[data-theme="dark"] .beian { background: rgba(255,255,255,.04); }

/* ============== Section ============== */
.section { padding: var(--sp-16) 0; }
.section-head {
  display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between;
  gap: var(--sp-4); margin-bottom: var(--sp-10);
}
.section-eyebrow {
  font-size: 0.82rem; font-weight: 600;
  color: var(--primary-600); letter-spacing: .12em; text-transform: uppercase;
  margin-bottom: 8px;
}

/* ============== Tabs ============== */
.tabs {
  display: inline-flex; padding: 4px; border-radius: 12px;
  background: var(--ink-100); gap: 2px;
  flex-wrap: wrap;
}
[data-theme="dark"] .tabs { background: rgba(255,255,255,.05); }
.tab {
  padding: 8px 16px; border-radius: 9px; font-size: 0.88rem; font-weight: 500;
  color: var(--ink-600); transition: all .2s var(--ease-out);
}
.tab:hover { color: var(--ink-900); }
.tab.active {
  background: var(--bg-card);
  color: var(--primary-600);
  box-shadow: 0 2px 8px rgba(40,118,240,.1);
  font-weight: 600;
}

/* ============== 通知条 ============== */
.notice-bar {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 16px; border-radius: 12px;
  background: linear-gradient(135deg, rgba(40,118,240,.08), rgba(16,184,138,.06));
  border: 1px solid rgba(40,118,240,.15);
  font-size: 0.88rem;
  color: var(--ink-700);
}
.notice-bar svg { color: var(--primary-500); flex-shrink: 0; }

/* ============== 滚动条 ============== */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--ink-300); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: var(--ink-400); }
[data-theme="dark"] ::-webkit-scrollbar-thumb { background: var(--ink-700); }

/* ============== 动效 ============== */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.stagger > * { opacity: 0; transform: translateY(20px); }
.stagger.visible > * {
  animation: stagger-in .6s var(--ease-out) forwards;
}
.stagger.visible > *:nth-child(1) { animation-delay: 0.05s; }
.stagger.visible > *:nth-child(2) { animation-delay: 0.1s; }
.stagger.visible > *:nth-child(3) { animation-delay: 0.15s; }
.stagger.visible > *:nth-child(4) { animation-delay: 0.2s; }
.stagger.visible > *:nth-child(5) { animation-delay: 0.25s; }
.stagger.visible > *:nth-child(6) { animation-delay: 0.3s; }
.stagger.visible > *:nth-child(7) { animation-delay: 0.35s; }
.stagger.visible > *:nth-child(8) { animation-delay: 0.4s; }
@keyframes stagger-in {
  to { opacity: 1; transform: translateY(0); }
}
.shimmer { position: relative; overflow: hidden; }
.shimmer::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(110deg, transparent 30%, rgba(255,255,255,.18) 50%, transparent 70%);
  animation: shimmer 3s linear infinite;
}
@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ============== 移动端菜单 ============== */
.mobile-menu {
  position: fixed; top: 0; right: 0; bottom: 0;
  width: min(80vw, 320px);
  background: var(--bg-base);
  box-shadow: -10px 0 40px rgba(0,0,0,.15);
  padding: var(--sp-6);
  z-index: 200;
  transform: translateX(100%);
  transition: transform .3s var(--ease-out);
  display: flex; flex-direction: column; gap: var(--sp-3);
}
.mobile-menu.open { transform: translateX(0); }
.mobile-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.4);
  z-index: 150; opacity: 0; pointer-events: none;
  transition: opacity .3s;
}
.mobile-overlay.open { opacity: 1; pointer-events: auto; }

/* ============== 工具类 ============== */
.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: var(--sp-2); } .gap-3 { gap: var(--sp-3); } .gap-4 { gap: var(--sp-4); } .gap-6 { gap: var(--sp-6); }
.mt-2 { margin-top: var(--sp-2); } .mt-4 { margin-top: var(--sp-4); } .mt-6 { margin-top: var(--sp-6); } .mt-8 { margin-top: var(--sp-8); } .mt-10 { margin-top: var(--sp-10); }
.mb-2 { margin-bottom: var(--sp-2); } .mb-4 { margin-bottom: var(--sp-4); } .mb-6 { margin-bottom: var(--sp-6); } .mb-8 { margin-bottom: var(--sp-8); }
.text-center { text-align: center; }
.text-sm { font-size: var(--fs-sm); } .text-xs { font-size: var(--fs-xs); }
.w-full { width: 100%; }
.hidden { display: none; } .block { display: block; }
@media (min-width: 768px) { .md\:block { display: block; } .md\:flex { display: flex; } }
@media (min-width: 960px) { .lg\:block { display: block; } .lg\:flex { display: flex; } .lg\:grid { display: grid; } }

/* 减少动画 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .stagger > * { opacity: 1; transform: none; }
}

/* ============== 详情页正文样式 ============== */
.prose { color: var(--ink-700); font-size: 1.02rem; line-height: 1.85; max-width: 100%; }
.prose h2 { font-size: 1.5rem; font-weight: 700; margin: 2em 0 .8em; color: var(--ink-900); }
.prose h3 { font-size: 1.2rem; font-weight: 700; margin: 1.6em 0 .6em; color: var(--ink-900); }
.prose p { margin: 1em 0; }
.prose ul, .prose ol { margin: 1em 0; padding-left: 1.6em; }
.prose li { margin: .4em 0; }
.prose ul li { list-style: disc; }
.prose ol li { list-style: decimal; }
.prose blockquote {
  margin: 1.4em 0; padding: var(--sp-4) var(--sp-5);
  border-left: 4px solid var(--primary-500);
  background: var(--primary-50);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  color: var(--ink-700); font-style: italic;
}
[data-theme="dark"] .prose blockquote { background: rgba(40,118,240,.08); }
.prose code {
  font-family: var(--font-mono); font-size: 0.9em;
  padding: 2px 6px; border-radius: 4px;
  background: var(--ink-100); color: var(--primary-700);
}
[data-theme="dark"] .prose code { background: rgba(255,255,255,.08); }
.prose img { border-radius: var(--r-md); margin: 1.5em 0; }

/* ============== 付费阅读 ============== */
/* 价格标签 */
.price-tag {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 10px; border-radius: 999px;
  font-size: 0.75rem; font-weight: 700;
  letter-spacing: 0.02em;
  transition: transform 0.2s ease;
}
.price-tag-free {
  background: rgba(16,184,138,.12);
  color: var(--accent-600, #0d8a64);
  border: 1px solid rgba(16,184,138,.25);
}
.price-tag-paid {
  background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  color: #fff;
  box-shadow: 0 4px 12px rgba(245,158,11,.25);
}
.price-tag-owned {
  background: rgba(40,118,240,.12);
  color: var(--primary-600, #1d5fcc);
  border: 1px solid rgba(40,118,240,.25);
}
[data-theme="dark"] .price-tag-free { background: rgba(16,184,138,.18); color: #34d399; }
[data-theme="dark"] .price-tag-owned { background: rgba(40,118,240,.18); color: #60a5fa; }

/* 卡片上的付费标记 */
.article-paid-mark {
  position: absolute; top: 12px; right: 12px;
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  color: #fff;
  padding: 4px 10px; border-radius: 999px;
  font-size: 0.72rem; font-weight: 700;
  box-shadow: 0 4px 12px rgba(245,158,11,.35);
  z-index: 2;
}
.article-card.is-paid { position: relative; }
.article-card.is-paid::after {
  content: ''; position: absolute; inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(245,158,11,.04), rgba(239,68,68,.04));
  pointer-events: none;
}

/* 投稿页：价格模式选择 */
.price-mode {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px; border-radius: 12px;
  border: 1.5px solid var(--ink-200);
  background: var(--bg-base);
  cursor: pointer; user-select: none;
  font-size: 0.9rem; font-weight: 600;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.price-mode input { display: none; }
.price-mode-icon { font-size: 1.1rem; }
.price-mode:hover {
  border-color: var(--primary-400);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(40,118,240,.1);
}
.price-mode.active {
  border-color: var(--primary-500);
  background: linear-gradient(135deg, rgba(40,118,240,.08), rgba(16,184,138,.08));
  color: var(--primary-600);
  box-shadow: 0 4px 16px rgba(40,118,240,.15);
}
[data-theme="dark"] .price-mode.active {
  background: linear-gradient(135deg, rgba(40,118,240,.18), rgba(16,184,138,.18));
  color: #60a5fa;
}

/* 价格输入框 */
.price-input-wrap { animation: slideDown 0.3s ease; }
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}
.price-input-box {
  display: flex; align-items: center;
  background: var(--bg-base);
  border: 1.5px solid var(--ink-200);
  border-radius: 12px;
  padding: 0 16px; height: 48px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.price-input-box:focus-within {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(40,118,240,.1);
}
.price-prefix, .price-suffix { color: var(--ink-400); font-weight: 600; font-size: 1rem; }
.price-input {
  flex: 1; border: none; background: transparent;
  font-size: 1.25rem; font-weight: 700;
  color: var(--ink-900); outline: none;
  padding: 0 8px;
  font-family: var(--font-mono);
}
.price-presets {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-top: 12px;
}
.price-preset {
  padding: 6px 14px; border-radius: 999px;
  border: 1px solid var(--ink-200);
  background: var(--bg-base);
  color: var(--ink-600);
  font-size: 0.82rem; font-weight: 600;
  cursor: pointer; transition: all 0.2s;
}
.price-preset:hover { border-color: var(--primary-400); color: var(--primary-600); }
.price-preset.active {
  background: var(--primary-500); color: #fff;
  border-color: var(--primary-500);
  box-shadow: 0 4px 12px rgba(40,118,240,.25);
}

.price-preview-card {
  padding: 14px 16px;
  background: linear-gradient(135deg, rgba(245,158,11,.06), rgba(239,68,68,.06));
  border: 1.5px dashed rgba(245,158,11,.4);
  border-radius: 12px;
}
.price-preview-label {
  font-size: 0.75rem; color: var(--ink-500);
  margin-bottom: 8px; font-weight: 600;
}
.price-preview-body {
  display: flex; align-items: baseline; gap: 4px;
}
.price-preview-tag {
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  color: #fff; padding: 3px 10px; border-radius: 999px;
  font-size: 0.72rem; font-weight: 700;
  margin-right: 8px;
}
.price-preview-amount {
  font-size: 1.5rem; font-weight: 800;
  color: #ef4444; font-family: var(--font-mono);
}
.price-preview-unit { color: var(--ink-500); font-size: 0.85rem; }

/* 付费墙 */
.paywall {
  position: relative;
  margin-top: 24px;
}
.paywall-overlay {
  position: absolute;
  top: -160px; left: 0; right: 0;
  height: 160px;
  background: linear-gradient(180deg, transparent 0%, var(--bg-base) 80%);
  pointer-events: none;
  z-index: 1;
}
.paywall-card {
  position: relative; z-index: 2;
  margin: 0 auto;
  max-width: 480px;
  padding: 36px 32px;
  text-align: center;
  background: var(--bg-base);
  border: 1.5px solid var(--ink-200);
  border-radius: 20px;
  box-shadow: 0 20px 60px -20px rgba(40,118,240,.25), 0 8px 24px -8px rgba(0,0,0,.08);
  animation: paywallIn 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes paywallIn {
  from { opacity: 0; transform: translateY(20px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.paywall-icon {
  width: 72px; height: 72px;
  margin: 0 auto 16px;
  display: grid; place-items: center;
  font-size: 2rem;
  background: linear-gradient(135deg, rgba(245,158,11,.15), rgba(239,68,68,.15));
  border-radius: 50%;
  border: 2px solid rgba(245,158,11,.3);
}
.paywall-title {
  font-size: 1.35rem; font-weight: 700;
  color: var(--ink-900); margin: 0 0 8px;
}
.paywall-sub {
  color: var(--ink-500);
  font-size: 0.9rem; margin: 0 0 24px;
}
.paywall-price {
  display: flex; align-items: baseline; justify-content: center;
  gap: 4px; margin-bottom: 24px;
  color: #ef4444;
}
.paywall-currency { font-size: 1.2rem; font-weight: 700; }
.paywall-amount { font-size: 2.5rem; font-weight: 800; font-family: var(--font-mono); }
.paywall-unit { color: var(--ink-500); font-size: 0.9rem; }
.paywall-bullets {
  list-style: none; padding: 0; margin: 0 0 24px;
  display: flex; flex-direction: column; gap: 8px;
  text-align: left;
  background: var(--ink-50);
  border-radius: 12px;
  padding: 16px 20px;
}
[data-theme="dark"] .paywall-bullets { background: rgba(255,255,255,.04); }
.paywall-bullets li {
  font-size: 0.88rem; color: var(--ink-700);
  font-weight: 500;
}
.paywall-methods {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 10px; margin-bottom: 16px;
}
.pay-method {
  display: flex; align-items: center; justify-content: center;
  gap: 8px; padding: 12px;
  background: var(--bg-base);
  border: 1.5px solid var(--ink-200);
  border-radius: 12px;
  cursor: pointer; font-size: 0.88rem; font-weight: 600;
  color: var(--ink-700);
  transition: all 0.2s;
}
.pay-method:hover { border-color: var(--primary-400); transform: translateY(-1px); }
.pay-method.active {
  border-color: var(--primary-500);
  background: linear-gradient(135deg, rgba(40,118,240,.06), rgba(16,184,138,.06));
  color: var(--primary-600);
}
.pay-method-icon { font-size: 1.15rem; }
.paywall-btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px 24px;
  background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  color: #fff;
  border: none; border-radius: 12px;
  font-size: 1rem; font-weight: 700;
  cursor: pointer;
  box-shadow: 0 8px 24px -4px rgba(245,158,11,.4);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.paywall-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px -4px rgba(245,158,11,.5);
}
.paywall-btn:disabled { opacity: 0.7; cursor: wait; }
.paywall-btn svg { transition: transform 0.2s; }
.paywall-btn:hover:not(:disabled) svg { transform: translateX(4px); }
.paywall-btn-alipay {
  background: linear-gradient(135deg, #1677ff 0%, #0958d9 100%);
  box-shadow: 0 8px 24px -4px rgba(22,119,255,.4);
}
.paywall-btn-alipay:hover:not(:disabled) {
  box-shadow: 0 12px 32px -4px rgba(22,119,255,.5);
}
.paywall-btn-icon { font-size: 1.2rem; }
.paywall-tip {
  margin: 14px 0 0; font-size: 0.75rem;
  color: var(--ink-400);
}

/* 模拟支付宝支付弹窗 */
.alipay-modal {
  position: fixed; inset: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
  animation: alipayModalIn 0.3s var(--ease-out);
}
.alipay-modal-exit { animation: alipayModalOut 0.25s var(--ease-out) forwards; }
@keyframes alipayModalIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes alipayModalOut {
  from { opacity: 1; }
  to { opacity: 0; }
}
.alipay-modal-backdrop {
  position: absolute; inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
}
.alipay-modal-card {
  position: relative; z-index: 1;
  width: 100%; max-width: 420px;
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 24px 60px -12px rgba(0,0,0,.35);
  overflow: hidden;
  animation: alipayCardIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
[data-theme="dark"] .alipay-modal-card { background: #1e293b; }
@keyframes alipayCardIn {
  from { opacity: 0; transform: translateY(30px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.alipay-modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px;
  background: linear-gradient(135deg, #1677ff 0%, #0958d9 100%);
  color: #fff;
}
.alipay-logo { display: flex; align-items: center; gap: 10px; }
.alipay-logo-icon {
  width: 28px; height: 28px; border-radius: 6px;
  background: #fff; color: #1677ff;
  display: grid; place-items: center; font-weight: 800; font-size: 0.95rem;
}
.alipay-logo-text { font-weight: 700; font-size: 1.1rem; letter-spacing: 0.02em; }
.alipay-close {
  width: 32px; height: 32px; border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(255,255,255,.18); color: #fff;
  font-size: 1rem; transition: background 0.2s;
}
.alipay-close:hover { background: rgba(255,255,255,.3); }
.alipay-modal-body { padding: 28px 24px 20px; text-align: center; }
.alipay-merchant {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  margin-bottom: 8px; font-size: 0.85rem; color: #64748b;
}
[data-theme="dark"] .alipay-merchant { color: #94a3b8; }
.alipay-merchant-name { font-weight: 600; color: #334155; }
[data-theme="dark"] .alipay-merchant-name { color: #e2e8f0; }
.alipay-order-id { font-family: var(--font-mono); font-size: 0.75rem; }
.alipay-amount {
  font-size: 2.8rem; font-weight: 800; color: #111827;
  font-family: var(--font-mono); line-height: 1;
  margin-bottom: 24px; letter-spacing: -0.02em;
}
[data-theme="dark"] .alipay-amount { color: #f8fafc; }
.alipay-qr-wrap {
  display: flex; flex-direction: column; align-items: center;
  gap: 12px; margin-bottom: 20px;
}
.alipay-qr-frame {
  padding: 14px; border-radius: 14px;
  background: #fff;
  border: 1px solid #e2e8f0;
  box-shadow: 0 4px 16px rgba(0,0,0,.06);
}
.alipay-qr { display: block; }
.alipay-qr-tip {
  font-size: 0.8rem; color: #64748b; font-weight: 500;
}
[data-theme="dark"] .alipay-qr-tip { color: #94a3b8; }
.alipay-countdown {
  font-size: 0.85rem; color: #ef4444; font-weight: 600;
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 999px;
  background: rgba(239,68,68,.08);
}
.alipay-modal-footer {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
  padding: 0 24px 24px;
}
.alipay-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 12px 16px; border-radius: 10px; font-weight: 600; font-size: 0.92rem;
  transition: all 0.2s;
}
.alipay-btn:disabled { opacity: 0.6; cursor: not-allowed; }
.alipay-btn-cancel {
  background: #f1f5f9; color: #475569; border: 1px solid #e2e8f0;
}
.alipay-btn-cancel:hover:not(:disabled) { background: #e2e8f0; }
[data-theme="dark"] .alipay-btn-cancel { background: #334155; color: #e2e8f0; border-color: #475569; }
[data-theme="dark"] .alipay-btn-cancel:hover:not(:disabled) { background: #475569; }
.alipay-btn-success {
  background: linear-gradient(135deg, #1677ff 0%, #0958d9 100%);
  color: #fff; border: none;
  box-shadow: 0 4px 14px rgba(22,119,255,.35);
}
.alipay-btn-success:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(22,119,255,.45);
}
.alipay-btn-link {
  background: linear-gradient(135deg, #1677ff 0%, #0958d9 100%);
  color: #fff; border: none;
  box-shadow: 0 4px 14px rgba(22,119,255,.35);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.alipay-btn-link:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(22,119,255,.45);
  color: #fff;
}
.alipay-qr-loading {
  background: var(--ink-50);
  border-radius: 12px;
}
[data-theme="dark"] .alipay-qr-loading {
  background: rgba(255,255,255,.04);
  color: #64748b !important;
}
@keyframes alipayPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.3); }
}
@keyframes alipaySpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@media (max-width: 640px) {
  .paywall-card { padding: 28px 20px; }
  .paywall-amount { font-size: 2rem; }
  .paywall-methods { grid-template-columns: 1fr; }
  .alipay-modal-card { max-width: 360px; }
  .alipay-amount { font-size: 2.4rem; }
}
.drug-usage { background: var(--ink-50); border-radius: 10px; padding: 12px 14px; margin-top: auto; }
[data-theme="dark"] .drug-usage { background: rgba(255,255,255,.04); }