/* ── 效率搭子 · AI工具箱 ── 浅色科技风 ── */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg-body: #f4f6fa;
  --bg-card: #ffffff;
  --bg-elevated: #f8f9fc;
  --border: rgba(0, 0, 0, 0.06);
  --border-hover: rgba(79, 70, 229, 0.15);
  --primary: #4f46e5;
  --primary-light: rgba(79, 70, 229, 0.08);
  --primary-glow: rgba(79, 70, 229, 0.1);
  --secondary: #7c3aed;
  --accent: #0ea5e9;
  --success: #10b981;
  --warm: #f59e0b;
  --text: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #94a3b8;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-card: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.02);
  --shadow-hover: 0 8px 25px rgba(0,0,0,0.06), 0 2px 8px rgba(0,0,0,0.03);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg-body);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── Grid background ── */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(79, 70, 229, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79, 70, 229, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}
.hero-gradient {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 700px;
  z-index: 0;
  background: linear-gradient(180deg,
    rgba(79, 70, 229, 0.04) 0%,
    rgba(124, 58, 237, 0.02) 40%,
    transparent 100%
  );
  pointer-events: none;
}
.blob {
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  z-index: 0;
}
.blob-1 { width: 500px; height: 500px; background: radial-gradient(circle, rgba(79, 70, 229, 0.06), transparent 70%); top: -200px; right: -100px; }
.blob-2 { width: 350px; height: 350px; background: radial-gradient(circle, rgba(14, 165, 233, 0.04), transparent 70%); bottom: 200px; left: -80px; }

/* ── Container ── */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 32px; }
.page-wrap { position: relative; z-index: 1; min-height: calc(100vh - 64px); }

/* ── Nav ── */
nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(244, 246, 250, 0.75);
  border-bottom: 1px solid var(--border);
}
nav .container {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.3px;
}
.logo-icon {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #fff;
  flex-shrink: 0;
}
.nav-links { display: flex; gap: 32px; align-items: center; }
.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}
.nav-links a:hover { color: var(--text); }
.nav-links a.active { color: var(--primary); }
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
}
.nav-cta {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff !important;
  padding: 8px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 13px;
  transition: var(--transition);
}
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--primary-glow);
  color: #fff !important;
}

/* ── Hero ── */
.hero {
  position: relative;
  padding: 80px 0 60px;
  text-align: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 999px;
  background: var(--primary-light);
  border: 1px solid rgba(79, 70, 229, 0.15);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 24px;
}
.hero h1 {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
  color: var(--text);
}
.hero h1 .highlight {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto 36px;
  line-height: 1.7;
}
.hero-search {
  display: inline-flex;
  align-items: center;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 4px 4px 24px;
  max-width: 520px;
  width: 100%;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  transition: var(--transition);
}
.hero-search:focus-within {
  border-color: rgba(79, 70, 229, 0.3);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.08);
}
.hero-search input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 15px;
  padding: 12px 0;
}
.hero-search input::placeholder { color: var(--text-tertiary); }
.hero-search button {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border: none;
  padding: 10px 28px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.hero-search button:hover {
  box-shadow: 0 4px 20px rgba(79, 70, 229, 0.25);
  transform: scale(1.02);
}
.hero-stats { display: flex; justify-content: center; gap: 48px; margin-top: 48px; }
.hero-stat { text-align: center; }
.hero-stat-num { font-size: 28px; font-weight: 800; color: var(--primary); letter-spacing: -0.5px; }
.hero-stat-label { font-size: 13px; color: var(--text-tertiary); margin-top: 2px; }

/* ── Sections ── */
section { padding: 56px 0; }
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 28px;
}
.section-header h2 { font-size: 24px; font-weight: 700; letter-spacing: -0.3px; }
.section-header .sub { color: var(--text-secondary); font-size: 15px; margin-top: 4px; }
.section-link {
  color: var(--primary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}
.section-link:hover { gap: 8px; }

/* ── Category cards ── */
.category-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.cat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  text-decoration: none;
  display: block;
  color: inherit;
}
.cat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  border-radius: 3px 3px 0 0;
  opacity: 0;
  transition: var(--transition);
}
.cat-card:nth-child(1)::before { background: linear-gradient(90deg, #4f46e5, #6366f1); }
.cat-card:nth-child(2)::before { background: linear-gradient(90deg, #7c3aed, #a78bfa); }
.cat-card:nth-child(3)::before { background: linear-gradient(90deg, #0ea5e9, #38bdf8); }
.cat-card:nth-child(4)::before { background: linear-gradient(90deg, #10b981, #34d399); }
.cat-card:nth-child(5)::before { background: linear-gradient(90deg, #f59e0b, #fbbf24); }
.cat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.cat-card:hover::before { opacity: 1; }
.cat-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin: 0 auto 14px;
}
.cat-card:nth-child(1) .cat-icon { background: rgba(79, 70, 229, 0.08); }
.cat-card:nth-child(2) .cat-icon { background: rgba(124, 58, 237, 0.08); }
.cat-card:nth-child(3) .cat-icon { background: rgba(14, 165, 233, 0.08); }
.cat-card:nth-child(4) .cat-icon { background: rgba(16, 185, 129, 0.08); }
.cat-card:nth-child(5) .cat-icon { background: rgba(245, 158, 11, 0.08); }
.cat-card h3 { font-size: 15px; font-weight: 600; margin-bottom: 6px; }
.cat-card p { font-size: 13px; color: var(--text-tertiary); line-height: 1.4; }
.cat-count {
  display: inline-block;
  margin-top: 12px;
  font-size: 12px;
  padding: 2px 12px;
  border-radius: 999px;
  background: var(--bg-elevated);
  color: var(--text-tertiary);
}

/* ── Featured scroll ── */
.featured-scroll {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 8px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.featured-scroll::-webkit-scrollbar { height: 4px; }
.featured-scroll::-webkit-scrollbar-track { background: transparent; }
.featured-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }
.featured-card {
  min-width: 280px;
  flex-shrink: 0;
  scroll-snap-align: start;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
  text-decoration: none;
  color: inherit;
  display: block;
}
.featured-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(79, 70, 229, 0.12);
}
.featured-label { font-size: 11px; text-transform: uppercase; letter-spacing: 1px; font-weight: 600; margin-bottom: 10px; }
.featured-label.star { color: var(--warm); }
.featured-label.fire { color: #ef4444; }
.featured-card h3 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.featured-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.5; margin-bottom: 12px; }

/* ── Tool cards grid ── */
.tool-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
  text-decoration: none;
  color: inherit;
  display: block;
}
.tool-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(79, 70, 229, 0.12);
}
.tool-card-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 14px; }
.tool-card-icon {
  width: 42px; height: 42px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  background: rgba(79, 70, 229, 0.06);
}
.tool-tag {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.3px;
  display: inline-block;
}
.tag-indigo { background: rgba(79, 70, 229, 0.08); color: #4f46e5; }
.tag-purple { background: rgba(124, 58, 237, 0.08); color: #7c3aed; }
.tag-blue { background: rgba(14, 165, 233, 0.08); color: #0ea5e9; }
.tag-green { background: rgba(16, 185, 129, 0.08); color: #10b981; }
.tag-amber { background: rgba(245, 158, 11, 0.08); color: #d97706; }
.tag-pink { background: rgba(236, 72, 153, 0.08); color: #db2777; }
.tool-card h3 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.tool-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.tool-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.tool-visit {
  font-size: 13px;
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}
.tool-visit:hover { gap: 8px; }
.tool-meta { font-size: 12px; color: var(--text-tertiary); display: flex; gap: 12px; }

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  background: #fff;
  padding: 48px 0 32px;
  margin-top: 24px;
}
footer .footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
}
footer h4 { font-size: 14px; font-weight: 600; margin-bottom: 16px; color: var(--text); }
footer p, footer a {
  font-size: 13px;
  color: var(--text-tertiary);
  line-height: 1.8;
  text-decoration: none;
  display: block;
  transition: var(--transition);
}
footer a:hover { color: var(--text-secondary); }
footer .footer-bottom {
  padding-top: 20px;
  margin-top: 32px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-tertiary);
}

/* ── Page header (non-home) ── */
.page-header {
  padding: 48px 0 32px;
  text-align: center;
}
.page-header h1 { font-size: 36px; font-weight: 800; letter-spacing: -0.8px; }
.page-header .breadcrumb {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-top: 8px;
}
.page-header .breadcrumb a { color: var(--text-tertiary); text-decoration: none; }
.page-header .breadcrumb a:hover { color: var(--primary); }
.page-header .breadcrumb span { margin: 0 6px; }

/* ── Filter bar ── */
.filter-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.filter-btn {
  padding: 6px 18px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
}
.filter-btn:hover { border-color: rgba(79, 70, 229, 0.2); color: var(--text); }
.filter-btn.active {
  background: var(--primary-light);
  border-color: rgba(79, 70, 229, 0.2);
  color: var(--primary);
}

/* ── Tool detail ── */
.tool-detail {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow-card);
  margin-bottom: 32px;
}
.tool-detail .detail-header {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  margin-bottom: 24px;
}
.tool-detail .detail-icon {
  width: 72px; height: 72px;
  border-radius: 16px;
  background: rgba(79, 70, 229, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  flex-shrink: 0;
}
.tool-detail .detail-info h2 { font-size: 28px; font-weight: 700; margin-bottom: 4px; }
.tool-detail .detail-info .detail-meta { font-size: 13px; color: var(--text-tertiary); display: flex; gap: 16px; margin-top: 6px; }
.tool-detail .detail-body { font-size: 15px; color: var(--text-secondary); line-height: 1.8; }
.tool-detail .detail-body h3 { font-size: 18px; font-weight: 600; margin: 28px 0 12px; color: var(--text); }
.tool-detail .detail-body ul { padding-left: 20px; }
.tool-detail .detail-body li { margin-bottom: 8px; }
.tool-detail .detail-actions { display: flex; gap: 12px; margin-top: 28px; }
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border: none;
  padding: 12px 32px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn-primary:hover {
  box-shadow: 0 4px 20px rgba(79, 70, 229, 0.25);
  transform: translateY(-1px);
}
.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 12px 32px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn-secondary:hover { border-color: rgba(79, 70, 229, 0.2); color: var(--text); }

/* ── About page ── */
.about-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow-card);
  max-width: 720px;
  margin: 0 auto;
}
.about-section h3 { font-size: 20px; font-weight: 600; margin: 28px 0 12px; }
.about-section h3:first-child { margin-top: 0; }
.about-section p { font-size: 15px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 12px; }
.about-section ul { padding-left: 20px; margin-bottom: 12px; }
.about-section li { font-size: 15px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 6px; }

/* ── Download page ── */
.download-page { max-width: 960px; margin: 0 auto; padding: 40px 0; }
.download-intro { text-align: center; margin-bottom: 48px; }
.download-intro h1 { font-size: 36px; font-weight: 700; margin-bottom: 12px; }
.download-intro h1 span { background: linear-gradient(135deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.download-intro p { color: var(--text-secondary); font-size: 16px; max-width: 560px; margin: 0 auto; line-height: 1.7; }
.dl-category { margin-bottom: 40px; }
.dl-category h2 { font-size: 22px; font-weight: 600; margin-bottom: 16px; display: flex; align-items: center; gap: 10px; }
.dl-category h2 .cat-emoji { font-size: 24px; }
.dl-list { display: flex; flex-direction: column; gap: 1px; background: var(--border); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); }
.dl-item { display: grid; grid-template-columns: 40px 1fr auto auto; gap: 14px; align-items: center; background: var(--bg-card); padding: 14px 20px; transition: var(--transition); }
.dl-item:hover { background: var(--bg-elevated); }
.dl-item .dl-icon { font-size: 20px; text-align: center; }
.dl-item .dl-name { font-weight: 500; font-size: 15px; color: var(--text); }
.dl-item .dl-desc { font-size: 13px; color: var(--text-tertiary); }
.dl-item .dl-badge { font-size: 11px; font-weight: 500; padding: 3px 10px; border-radius: 999px; white-space: nowrap; }
.dl-badge-free { background: #dcfce7; color: #166534; }
.dl-badge-trial { background: #fef3c7; color: #92400e; }
.dl-badge-paid { background: #e0e7ff; color: #3730a3; }
.dl-item .dl-link { display: inline-flex; align-items: center; gap: 4px; font-size: 13px; font-weight: 500; color: var(--primary); text-decoration: none; padding: 6px 14px; border: 1px solid rgba(79, 70, 229, 0.15); border-radius: 999px; transition: var(--transition); white-space: nowrap; }
.dl-item .dl-link:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ── Animations ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero { animation: fadeUp 0.6s ease-out; }
section { animation: fadeUp 0.5s ease-out; }

/* ── Detail page data grid ── */
.data-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 16px 0 24px; }
.data-item { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px 14px; font-size: 14px; color: var(--text-secondary); line-height: 1.5; }
.data-item strong { display: block; font-size: 12px; color: var(--text-tertiary); font-weight: 500; margin-bottom: 2px; }
@media (max-width: 700px) { .data-grid { grid-template-columns: repeat(2, 1fr); } }

/* ── Responsive ── */
@media (max-width: 900px) {
  .category-grid { grid-template-columns: repeat(3, 1fr); }
  .tool-grid { grid-template-columns: repeat(2, 1fr); }
  footer .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 38px; }
}
@media (max-width: 640px) {
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .tool-grid { grid-template-columns: 1fr; }
  .nav-links a:not(.nav-cta) { display: none; }
  .hero-stats { gap: 24px; }
  .hero h1 { font-size: 28px; }
  footer .footer-grid { grid-template-columns: 1fr; }
  .tool-detail { padding: 24px; }
  .tool-detail .detail-header { flex-direction: column; }
}

/* ── Submit page ── */
.submit-wrap { max-width: 640px; margin: 0 auto; padding: 0 0 40px; }
.submit-intro { text-align: center; margin-bottom: 36px; }
.submit-intro p { color: var(--text-secondary); font-size: 15px; line-height: 1.7; }
.submit-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow-card);
}
.form-group { margin-bottom: 22px; }
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.form-group label .required { color: #ef4444; margin-left: 2px; }
.form-group .hint { font-size: 12px; color: var(--text-tertiary); margin-top: 4px; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text);
  background: var(--bg-body);
  transition: var(--transition);
  font-family: inherit;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: rgba(79, 70, 229, 0.3);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.08);
}
.form-group textarea { resize: vertical; min-height: 90px; }
.form-submit { text-align: center; margin-top: 8px; }
.submit-success {
  text-align: center;
  padding: 60px 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}
.submit-success h2 { font-size: 24px; margin-bottom: 12px; }
.submit-success p { color: var(--text-secondary); font-size: 15px; line-height: 1.7; }