/* 有道翻译 — 官方网站 */

:root {
  --primary: #4C5FFF;
  --primary-dark: #3A46E0;
  --primary-light: #EEF0FF;
  --ai-grad: linear-gradient(270deg, #816FF1 0%, #6663F7 55%, #7583FF 100%);
  --gold-grad: linear-gradient(270deg, #FFD8B7 0%, #FFE2C1 100%);
  --hero-grad: linear-gradient(160deg, #EFF1FF 0%, #F7F8FF 45%, #FFFFFF 100%);

  --text-primary: #14152B;
  --text-secondary: #656B85;
  --text-tertiary: #A0A5BD;

  --border: #ECEDF5;
  --bg: #FFFFFF;
  --bg-soft: #F6F7FC;

  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-xl: 28px;
  --radius-pill: 60px;

  --shadow-md: 0 8px 24px rgba(41, 47, 105, 0.08);
  --shadow-lg: 0 20px 48px rgba(41, 47, 105, 0.12);

  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei",
    "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  color: var(--text-primary);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; }
ul { list-style: none; margin: 0; padding: 0; }
img, svg { display: block; }

/* ---------- Top nav ---------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 32px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  flex-shrink: 0;
  min-width: 125px;
}
.brand-mark { width: 30px; height: 30px; }
.brand-word { font-size: 16px; font-weight: 700; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-soft);
  padding: 4px;
  border-radius: var(--radius-pill);
}
.nav-links a {
  font-size: 14px;
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
}
.nav-links a.active {
  background: var(--bg);
  color: var(--text-primary);
  font-weight: 600;
  box-shadow: var(--shadow-md);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}
.icon-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.icon-btn svg { width: 16px; height: 16px; }
.btn-vip {
  background: var(--gold-grad);
  color: #7A4A12;
  font-size: 13px;
  font-weight: 700;
  padding: 9px 18px;
  border-radius: var(--radius-pill);
  border: none;
  display: flex;
  align-items: center;
  gap: 5px;
}

/* ---------- App download hero ---------- */
.app-hero { background: var(--hero-grad); padding: 48px 24px 36px; }
.app-hero-grid { max-width: 780px; margin: 0 auto; text-align: center; }
.app-hero h1 { font-size: 28px; font-weight: 800; margin: 0 0 12px; line-height: 1.35; }
.app-hero-sub { font-size: 14px; color: var(--text-secondary); line-height: 1.75; margin: 0 auto 22px; max-width: 460px; }
.app-badge-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.btn-app {
  display: inline-flex; align-items: center; gap: 8px; background: var(--text-primary); color: #fff;
  padding: 11px 20px; border-radius: var(--radius-pill); font-size: 13px; font-weight: 700;
}
.btn-app svg { width: 16px; height: 16px; }
.btn-app.secondary { background: #fff; color: var(--text-primary); border: 1px solid var(--border); }

/* ---------- Compare table ---------- */
.compare-table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-md); }
.compare-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 560px; }
.compare-table th, .compare-table td { padding: 13px 16px; text-align: left; border-bottom: 1px solid var(--border); }
.compare-table th { background: var(--bg-soft); font-weight: 700; }
.compare-table td { color: var(--text-secondary); }
.compare-table tr:last-child td { border-bottom: none; }
.compare-table .tag { display: inline-block; font-size: 10.5px; font-weight: 700; color: var(--primary); background: var(--primary-light); padding: 2px 7px; border-radius: var(--radius-pill); margin-left: 6px; }

/* ---------- Scenario grid ---------- */
.scenario-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.scenario-card { border: 1px solid var(--border); border-radius: var(--radius-md, 14px); padding: 20px; background: #fff; }
.scenario-card .scenario-tag { font-size: 10.5px; font-weight: 700; color: var(--primary); background: var(--primary-light); padding: 3px 9px; border-radius: var(--radius-pill); display: inline-block; margin-bottom: 10px; }
.scenario-card h3 { font-size: 14px; font-weight: 700; margin: 0 0 6px; }
.scenario-card p { font-size: 12.5px; color: var(--text-secondary); line-height: 1.7; margin: 0; }

/* ---------- Lite translate ---------- */
.lite-translate-wrap { max-width: 1080px; margin: -18px auto 0; padding: 0 24px 8px; }
.lite-translate-label { display: flex; align-items: center; justify-content: space-between; font-size: 12.5px; color: var(--text-tertiary); margin-bottom: 10px; }
.lite-translate-label a { color: var(--primary); font-weight: 700; }
.translate-card.compact .pane { min-height: 120px; padding: 16px 20px; }

/* ---------- Mini reason grid ---------- */
.reason-mini-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.reason-mini-card { border: 1px solid var(--border); border-radius: var(--radius-md); padding: 18px; background: #fff; }
.reason-mini-card h3 { font-size: 14px; font-weight: 700; margin: 0 0 6px; }
.reason-mini-card p { font-size: 12.5px; color: var(--text-secondary); line-height: 1.65; margin: 0; }

/* ---------- Hero (legacy translate-first, kept for other pages) ---------- */
.hero {
  background: var(--hero-grad);
  padding: 56px 24px 84px;
  text-align: center;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
}
.hero-title {
  font-size: 34px;
  font-weight: 800;
  margin: 0 0 10px;
  letter-spacing: -0.5px;
}
.hero-sub {
  font-size: 15px;
  color: var(--text-secondary);
  margin: 0 0 32px;
}

/* ---------- Floating translate card ---------- */
.translate-card {
  max-width: 960px;
  margin: -56px auto 0;
  background: var(--bg);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  text-align: left;
  border: 1px solid var(--border);
}
.card-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  border-bottom: 1px solid var(--border);
}
.mode-chip {
  font-size: 13px;
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
}
.mode-chip.active {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
}
.translate-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: stretch;
}
.pane {
  padding: 24px 26px;
  min-height: 220px;
  display: flex;
  flex-direction: column;
}
.pane-divider {
  width: 1px;
  background: var(--border);
  position: relative;
}
.swap-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}
.swap-btn svg { width: 16px; height: 16px; }
.pane-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.lang-select {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
}
.lang-select svg { width: 14px; height: 14px; color: var(--text-tertiary); }
.pane-textarea {
  flex: 1;
  border: none;
  outline: none;
  resize: none;
  font-size: 17px;
  line-height: 1.65;
  color: var(--text-primary);
  font-family: inherit;
}
.pane-textarea::placeholder { color: var(--text-tertiary); }
.pane-result {
  flex: 1;
  font-size: 17px;
  line-height: 1.65;
}
.pane-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  margin-top: 14px;
  border-top: 1px solid var(--border);
}
.pane-tools { display: flex; align-items: center; gap: 14px; color: var(--text-tertiary); }
.pane-tools svg { width: 17px; height: 17px; }
.char-count { font-size: 12px; color: var(--text-tertiary); }
.btn-ai-polish {
  background: var(--ai-grad);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  padding: 8px 16px;
  display: flex;
  align-items: center;
  gap: 5px;
}

/* ---------- Quick links under hero ---------- */
.quicklinks {
  max-width: 960px;
  margin: 22px auto 0;
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}
.quicklink-chip {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: var(--text-secondary);
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 9px 16px;
  border-radius: var(--radius-pill);
}
.quicklink-chip svg { width: 15px; height: 15px; color: var(--primary); }
.quicklink-chip:hover { border-color: var(--primary); color: var(--primary); }

/* ---------- Sections ---------- */
.section {
  max-width: 1080px;
  margin: 0 auto;
  padding: 72px 24px;
}
.section-eyebrow {
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
  text-align: center;
}
.section-title {
  font-size: 26px;
  font-weight: 800;
  text-align: center;
  margin: 0 0 40px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.feature-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px 22px;
  transition: box-shadow .18s, transform .18s;
  background: var(--bg);
}
.feature-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.feature-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.feature-icon svg { width: 22px; height: 22px; }
.feature-name { font-size: 15px; font-weight: 700; margin-bottom: 6px; }
.feature-desc { font-size: 13px; color: var(--text-secondary); line-height: 1.55; }

/* ---------- Page hero (secondary pages) ---------- */
.page-hero {
  background: var(--hero-grad);
  padding: 48px 24px 40px;
  text-align: center;
}
.page-hero .hero-title { font-size: 28px; }

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px 72px;
}

/* ---------- Upload card ---------- */
.upload-card {
  max-width: 760px;
  margin: -30px auto 0;
  background: var(--bg);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1.5px dashed var(--primary-light);
  padding: 52px 30px;
  text-align: center;
}
.upload-icon {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.upload-icon svg { width: 28px; height: 28px; }
.upload-title { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.upload-sub { font-size: 13px; color: var(--text-secondary); margin-bottom: 22px; }
.btn-primary {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-pill);
  padding: 12px 28px;
  font-size: 14px;
  font-weight: 700;
}
.filetype-row { display: flex; justify-content: center; gap: 10px; margin-top: 24px; }
.filetype-chip {
  width: 36px; height: 36px; border-radius: 10px;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; color: var(--text-secondary);
}

/* ---------- Plans / downloads ---------- */
.plan-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 12px; }
.plan-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  text-align: center;
  background: var(--bg);
}
.plan-card.featured {
  background: var(--text-primary);
  color: #fff;
  border-color: var(--text-primary);
  position: relative;
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}
.plan-card.featured .plan-name,
.plan-card.featured .plan-desc { color: rgba(255,255,255,0.65); }
.plan-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--gold-grad); color: #7A4A12;
  font-size: 11px; font-weight: 700; padding: 4px 14px; border-radius: var(--radius-pill);
}
.plan-name { font-size: 14px; color: var(--text-secondary); margin-bottom: 10px; }
.plan-price { font-size: 30px; font-weight: 800; margin-bottom: 4px; }
.plan-price span { font-size: 13px; font-weight: 400; opacity: .6; }
.plan-desc { font-size: 12px; color: var(--text-tertiary); margin-bottom: 20px; }
.plan-card.featured .btn-primary { background: #fff; color: var(--text-primary); }

.download-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 20px; margin-top: 12px; }
.download-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  text-align: center;
  background: var(--bg);
}
.download-icon {
  width: 50px; height: 50px; border-radius: 14px;
  background: var(--primary-light); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 14px;
}
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  text-align: center;
  font-size: 12px;
  color: var(--text-tertiary);
}

@media (max-width: 900px) {
  .navbar { padding: 12px 16px; }
  .brand { flex-shrink: 0; min-width: 110px; }
  .nav-links { display: none; }
  .translate-grid { grid-template-columns: 1fr; }
  .pane-divider { display: none; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .plan-grid, .download-grid { grid-template-columns: 1fr; }
  .plan-card.featured { transform: none; }
}

.brand-logo {
  height: 28px;
  width: auto;
  aspect-ratio: 1280 / 285;
  display: block;
  max-width: none;
  object-fit: contain;
}