/* ========================================
   有道翻译落地站 - 语言导航站主题
   配色：深绿 #0A4A3A + 翠绿 #1DB954 + 橙金 #F5A623 + 白底
   风格：清新自然 + 科技感，区别于常见蓝色系
   ======================================== */

:root {
  --primary: #0A6647;
  --primary-light: #12a06e;
  --primary-lighter: #e8f7f1;
  --accent: #F5A623;
  --accent-dark: #e0901a;
  --text-main: #1a1a2e;
  --text-sub: #4a5568;
  --text-muted: #718096;
  --bg: #ffffff;
  --bg-soft: #f7faf9;
  --bg-card: #ffffff;
  --border: #e2e8f0;
  --border-light: #f0f4f8;
  --shadow-sm: 0 1px 4px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.14);
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: var(--text-main);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse { 0%,100% { transform: scale(1); } 50% { transform: scale(1.04); } }
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }
@keyframes floatY { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* ---- NAVBAR ---- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 2px solid var(--primary);
  box-shadow: var(--shadow-sm);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  height: 64px;
  gap: 8px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--primary);
  margin-right: auto;
  letter-spacing: -0.5px;
}
.nav-logo-icon {
  width: 36px;
  height: 36px;
  background: var(--primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-sub);
  transition: all 0.2s;
}
.nav-links a:hover { background: var(--primary-lighter); color: var(--primary); }
.nav-links a.active {
  background: var(--primary);
  color: #fff;
}
.nav-dl-btn {
  margin-left: 16px;
  padding: 8px 22px !important;
  background: var(--accent) !important;
  color: #1a1a2e !important;
  border-radius: 50px !important;
  font-weight: 700 !important;
  font-size: 0.88rem !important;
  transition: all 0.2s !important;
}
.nav-dl-btn:hover { background: var(--accent-dark) !important; transform: translateY(-1px); }

/* ---- HERO ---- */
.hero {
  background: linear-gradient(135deg, #0A4A3A 0%, #0d6b52 50%, #0A4A3A 100%);
  color: #fff;
  padding: 80px 24px 90px;
  overflow: hidden;
  position: relative;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(245,166,35,0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(29,185,84,0.1) 0%, transparent 40%);
}
.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245,166,35,0.2);
  border: 1px solid rgba(245,166,35,0.4);
  color: #F5A623;
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.hero h1 {
  font-size: 3.0rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -1px;
}
.hero h1 em {
  font-style: normal;
  color: #F5A623;
}
.hero-desc {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.82);
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: #F5A623;
  color: #1a1a2e;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 800;
  transition: all 0.2s;
  box-shadow: 0 4px 20px rgba(245,166,35,0.4);
  border: none;
}
.btn-primary:hover { background: #e0901a; transform: translateY(-2px); box-shadow: 0 6px 28px rgba(245,166,35,0.5); }
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.35);
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all 0.2s;
}
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.6); }

.hero-stats {
  display: flex;
  gap: 28px;
}
.hero-stat { text-align: center; }
.hero-stat .num { font-size: 1.8rem; font-weight: 900; color: #F5A623; }
.hero-stat .lbl { font-size: 0.78rem; color: rgba(255,255,255,0.65); margin-top: 2px; }

/* Hero right: Translation Demo Panel */
.hero-panel {
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius-xl);
  padding: 28px;
  animation: floatY 4s ease-in-out infinite;
}
.panel-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 20px;
}
.panel-tab {
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 600;
  color: rgba(255,255,255,0.6);
  cursor: default;
  transition: all 0.2s;
}
.panel-tab.on {
  background: var(--accent);
  color: #1a1a2e;
}
.panel-input {
  background: rgba(0,0,0,0.2);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 0.95rem;
  color: rgba(255,255,255,0.9);
  margin-bottom: 12px;
  line-height: 1.6;
  min-height: 72px;
}
.panel-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 8px 0;
  color: rgba(255,255,255,0.5);
  font-size: 0.8rem;
}
.panel-output {
  background: rgba(245,166,35,0.15);
  border: 1px solid rgba(245,166,35,0.3);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 0.95rem;
  color: #F5A623;
  line-height: 1.6;
  min-height: 72px;
}
.panel-langs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 16px;
}
.panel-lang {
  background: rgba(255,255,255,0.1);
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.7);
}

/* ---- SECTION SHELL ---- */
.section { padding: 80px 24px; }
.section-alt { background: var(--bg-soft); }
.container { max-width: 1200px; margin: 0 auto; }
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-lighter);
  color: var(--primary);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section-title {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--text-main);
  margin-bottom: 12px;
  letter-spacing: -0.5px;
  line-height: 1.25;
}
.section-sub {
  font-size: 1.02rem;
  color: var(--text-sub);
  max-width: 600px;
  line-height: 1.7;
}
.section-head { margin-bottom: 48px; }
.text-center { text-align: center; }
.text-center .section-sub { margin: 0 auto; }

/* ---- FEATURES GRID ---- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}
.feat-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity 0.3s;
}
.feat-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: var(--primary-light); }
.feat-card:hover::after { opacity: 1; }
.feat-num {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--border-light);
  line-height: 1;
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
  letter-spacing: -2px;
  background: linear-gradient(135deg, #e2e8f0, #f0f4f8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.feat-icon {
  width: 52px;
  height: 52px;
  background: var(--primary-lighter);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--primary);
}
.feat-card h3 { font-size: 1.1rem; font-weight: 800; margin-bottom: 10px; color: var(--text-main); }
.feat-card p { font-size: 0.9rem; color: var(--text-sub); line-height: 1.7; }

/* ---- LANGUAGE STRIP ---- */
.lang-strip {
  background: var(--primary);
  padding: 20px 24px;
  overflow: hidden;
}
.lang-strip-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
}
.lang-strip-label {
  color: rgba(255,255,255,0.7);
  font-size: 0.82rem;
  font-weight: 700;
  white-space: nowrap;
  letter-spacing: 1px;
}
.lang-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.lang-tag {
  background: rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.9);
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 600;
}
.lang-tag.hot { background: var(--accent); color: #1a1a2e; }

/* ---- SCENARIO SECTION ---- */
.scenario-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.scenario-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.scenario-visual {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  padding: 48px 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.scenario-visual::before {
  content: '';
  position: absolute;
  width: 180px; height: 180px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  bottom: -40px; right: -40px;
}
.scenario-icon-wrap {
  width: 72px; height: 72px;
  background: rgba(255,255,255,0.15);
  border-radius: 20px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.scenario-visual h3 { font-size: 1.4rem; font-weight: 800; margin-bottom: 10px; }
.scenario-visual p { font-size: 0.88rem; color: rgba(255,255,255,0.78); line-height: 1.7; }
.scenario-content {
  background: #fff;
  padding: 48px 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.scenario-content:last-child { border-right: none; }
.scenario-tag {
  display: inline-block;
  background: var(--primary-lighter);
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}
.scenario-content h4 { font-size: 1.05rem; font-weight: 800; margin-bottom: 8px; }
.scenario-content p { font-size: 0.88rem; color: var(--text-sub); line-height: 1.7; }
.scenario-points { list-style: none; margin-top: 14px; display: flex; flex-direction: column; gap: 8px; }
.scenario-points li {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.85rem; color: var(--text-sub);
}
.scenario-points li::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--primary-light);
  flex-shrink: 0;
}

/* ---- PLATFORM SECTION ---- */
.platform-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 20px;
}
.plat-card {
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  position: relative;
  overflow: hidden;
}
.plat-card.win {
  background: linear-gradient(135deg, #0A4A3A 0%, #0d6b52 100%);
  color: #fff;
  grid-row: span 1;
}
.plat-card.mac { background: #f8f8f8; border: 1px solid var(--border); }
.plat-card.ios { background: linear-gradient(135deg, #f0f4ff, #e8eeff); border: 1px solid #c7d0ff; }
.plat-card.android { background: linear-gradient(135deg, #f0fdf4, #dcfce7); border: 1px solid #a7f3d0; }
.plat-card.mac, .plat-card.ios, .plat-card.android { color: var(--text-main); }
.plat-icon {
  width: 56px; height: 56px;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.plat-card.win .plat-icon { background: rgba(255,255,255,0.15); color: #fff; }
.plat-card.mac .plat-icon { background: #e0e0e0; color: #555; }
.plat-card.ios .plat-icon { background: #4f6ef7; color: #fff; }
.plat-card.android .plat-icon { background: #34a853; color: #fff; }
.plat-card h3 { font-size: 1.15rem; font-weight: 800; margin-bottom: 6px; }
.plat-card.win h3 { color: #fff; }
.plat-card p { font-size: 0.85rem; line-height: 1.6; margin-bottom: 20px; }
.plat-card.win p { color: rgba(255,255,255,0.75); }
.plat-card.mac p, .plat-card.ios p, .plat-card.android p { color: var(--text-sub); }
.plat-meta {
  display: flex; gap: 20px; margin-bottom: 24px;
}
.plat-meta-item { display: block; }
.plat-meta-item .m-val { font-size: 1.1rem; font-weight: 800; color: var(--accent); }
.plat-meta-item .m-lbl { font-size: 0.75rem; color: rgba(255,255,255,0.65); }
.dl-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 0.92rem;
  font-weight: 700;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
}
.dl-btn-win {
  background: var(--accent);
  color: #1a1a2e;
  box-shadow: 0 4px 16px rgba(245,166,35,0.35);
}
.dl-btn-win:hover { background: var(--accent-dark); transform: translateY(-2px); }
.dl-btn-dark {
  background: var(--primary);
  color: #fff;
}
.dl-btn-dark:hover { background: #0d5c3a; transform: translateY(-2px); }
.dl-btn-sm {
  padding: 10px 20px;
  font-size: 0.85rem;
}
.plat-badge {
  position: absolute;
  top: 16px; right: 16px;
  background: var(--accent);
  color: #1a1a2e;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.72rem;
  font-weight: 800;
}

/* ---- REVIEWS ---- */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all 0.3s;
  position: relative;
}
.review-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.review-stars {
  display: flex; gap: 3px;
  color: #f59e0b;
  margin-bottom: 14px;
}
.review-text {
  font-size: 0.92rem;
  color: var(--text-sub);
  line-height: 1.75;
  margin-bottom: 18px;
}
.review-author {
  display: flex; align-items: center; gap: 12px;
}
.review-avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}
.review-info .name { font-size: 0.88rem; font-weight: 700; color: var(--text-main); }
.review-info .role { font-size: 0.78rem; color: var(--text-muted); }
.review-quote {
  position: absolute;
  top: 20px; right: 20px;
  width: 32px; height: 32px;
  opacity: 0.08;
  color: var(--primary);
}

/* ---- FAQ ---- */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow 0.2s;
}
.faq-item.open { box-shadow: var(--shadow-md); border-color: var(--primary-light); }
.faq-q {
  width: 100%;
  text-align: left;
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  background: var(--bg-card);
  cursor: pointer;
  transition: background 0.2s;
}
.faq-q:hover { background: var(--primary-lighter); }
.faq-item.open .faq-q { background: var(--primary-lighter); color: var(--primary); }
.faq-chevron {
  width: 20px; height: 20px;
  flex-shrink: 0;
  color: var(--text-muted);
  transition: transform 0.3s;
}
.faq-item.open .faq-chevron { transform: rotate(180deg); color: var(--primary); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-a-inner {
  padding: 16px 20px 20px;
  font-size: 0.88rem;
  color: var(--text-sub);
  line-height: 1.8;
  border-top: 1px solid var(--border-light);
}

/* ---- COMPARE TABLE ---- */
.compare-wrap { overflow-x: auto; border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  min-width: 700px;
}
.compare-table th {
  background: var(--primary);
  color: #fff;
  padding: 16px 20px;
  font-weight: 700;
  text-align: center;
  white-space: nowrap;
}
.compare-table th:first-child { text-align: left; background: #0d5c3a; border-radius: 0; }
.compare-table th.highlight { background: var(--accent); color: #1a1a2e; }
.compare-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  text-align: center;
  color: var(--text-sub);
}
.compare-table td:first-child { text-align: left; font-weight: 600; color: var(--text-main); }
.compare-table tr:last-child td { border-bottom: none; }
.compare-table tr:hover td { background: var(--bg-soft); }
.compare-table td.highlight { background: rgba(245,166,35,0.06); }
.icon-yes { color: #10b981; }
.icon-no { color: #ef4444; }
.icon-partial { color: #f59e0b; }

/* ---- CTA BANNER ---- */
.cta-banner {
  background: linear-gradient(135deg, var(--primary) 0%, #0d6b52 50%, #105c3a 100%);
  border-radius: var(--radius-xl);
  padding: 60px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  color: #fff;
  overflow: hidden;
  position: relative;
}
.cta-banner::before {
  content: '';
  position: absolute;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: rgba(245,166,35,0.1);
  right: -60px; bottom: -80px;
}
.cta-banner::after {
  content: '';
  position: absolute;
  width: 160px; height: 160px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
  left: 200px; top: -40px;
}
.cta-text h2 { font-size: 1.9rem; font-weight: 900; margin-bottom: 10px; }
.cta-text p { font-size: 1rem; color: rgba(255,255,255,0.78); line-height: 1.7; }
.cta-actions { display: flex; flex-direction: column; gap: 10px; align-items: flex-end; flex-shrink: 0; position: relative; z-index: 1; }
.cta-note { font-size: 0.78rem; color: rgba(255,255,255,0.6); text-align: center; margin-top: 4px; }

/* ---- FOOTER ---- */
.footer {
  background: #0d1117;
  color: rgba(255,255,255,0.6);
  padding: 40px 24px;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.footer-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 24px;
}
.footer-brand { display: flex; flex-direction: column; gap: 8px; }
.footer-logo-text { font-size: 1.1rem; font-weight: 800; color: #fff; }
.footer-tagline { font-size: 0.82rem; color: rgba(255,255,255,0.5); max-width: 220px; line-height: 1.5; }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 0.85rem; color: rgba(255,255,255,0.55); transition: color 0.2s; }
.footer-links a:hover { color: var(--accent); }
.footer-safe {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: #10b981;
  margin-bottom: 10px;
}
.footer-copy { font-size: 0.78rem; color: rgba(255,255,255,0.4); line-height: 1.6; }

/* ---- DOWNLOAD PAGE ---- */
.dl-hero {
  background: linear-gradient(160deg, #f7faf9 0%, #e8f7f1 100%);
  padding: 64px 24px 72px;
  border-bottom: 1px solid var(--border);
}
.dl-hero-inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}
.dl-hero h1 { font-size: 2.6rem; font-weight: 900; color: var(--text-main); margin-bottom: 14px; letter-spacing: -0.5px; }
.dl-hero p { font-size: 1.05rem; color: var(--text-sub); line-height: 1.7; max-width: 600px; margin: 0 auto 32px; }

.win-card {
  background: linear-gradient(135deg, #0A4A3A, #0d6b52);
  border-radius: var(--radius-xl);
  padding: 40px;
  color: #fff;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
  margin-bottom: 24px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}
.win-card::after {
  content: '';
  position: absolute;
  width: 260px; height: 260px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  right: -60px; bottom: -80px;
}
.win-card-info { min-width: 0; }
.win-card-badge {
  display: inline-block;
  background: var(--accent);
  color: #1a1a2e;
  padding: 5px 16px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 800;
  margin-bottom: 14px;
}
.win-card h2 { font-size: 1.9rem; font-weight: 900; margin-bottom: 8px; }
.win-card p { color: rgba(255,255,255,0.75); font-size: 0.95rem; line-height: 1.7; margin-bottom: 24px; }
.win-card-specs {
  display: flex; gap: 24px; margin-bottom: 28px;
}
.win-spec { display: block; }
.win-spec .sv { font-size: 1rem; font-weight: 700; color: #F5A623; }
.win-spec .sk { font-size: 0.75rem; color: rgba(255,255,255,0.55); margin-top: 2px; }
.win-card-visual {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  position: relative; z-index: 1;
}
.win-os-icon {
  width: 100px; height: 100px;
  background: rgba(255,255,255,0.12);
  border-radius: 28px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 12px;
  color: #fff;
}

.other-platforms {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}
.op-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  background: var(--bg-card);
  transition: all 0.3s;
}
.op-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.op-icon {
  width: 56px; height: 56px;
  border-radius: 18px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 14px;
}
.op-card h3 { font-size: 1rem; font-weight: 800; margin-bottom: 6px; }
.op-card p { font-size: 0.82rem; color: var(--text-sub); margin-bottom: 18px; line-height: 1.6; }

.req-tabs {
  display: flex; gap: 4px;
  margin-bottom: 20px;
}
.req-tab {
  padding: 8px 20px;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-sub);
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid var(--border);
  background: var(--bg-card);
}
.req-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.req-panel { display: none; }
.req-panel.active { display: block; }
.req-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.req-table td { padding: 12px 16px; border-bottom: 1px solid var(--border); color: var(--text-sub); }
.req-table td:first-child { font-weight: 600; color: var(--text-main); width: 38%; }
.req-table tr:last-child td { border-bottom: none; }

.install-steps {
  display: flex; gap: 0;
  position: relative;
  margin-top: 32px;
}
.install-steps::before {
  content: '';
  position: absolute;
  top: 36px; left: 36px; right: 36px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  z-index: 0;
}
.install-step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  z-index: 1;
}
.step-circle {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: var(--bg);
  border: 3px solid var(--primary);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
  color: var(--primary);
  font-weight: 900;
  font-size: 1.2rem;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 6px var(--bg);
}
.install-step h4 { font-size: 0.9rem; font-weight: 700; margin-bottom: 6px; color: var(--text-main); }
.install-step p { font-size: 0.8rem; color: var(--text-sub); line-height: 1.5; max-width: 120px; }

/* ---- SEO PAGE ---- */
.article-hero {
  background: linear-gradient(160deg, #f7faf9, #e8f7f1);
  padding: 60px 24px;
  border-bottom: 1px solid var(--border);
}
.article-hero-inner {
  max-width: 860px;
  margin: 0 auto;
}
.article-meta {
  display: flex; align-items: center; gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.article-meta-tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--primary-lighter);
  color: var(--primary);
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 700;
}
.article-meta-date { font-size: 0.82rem; color: var(--text-muted); }
.article-hero h1 { font-size: 2.4rem; font-weight: 900; margin-bottom: 16px; letter-spacing: -0.5px; line-height: 1.25; }
.article-hero .desc { font-size: 1.02rem; color: var(--text-sub); line-height: 1.75; }

.article-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}
.article-body { min-width: 0; }
.article-body h2 {
  font-size: 1.55rem; font-weight: 800;
  color: var(--text-main);
  margin: 40px 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--primary-lighter);
}
.article-body h2:first-child { margin-top: 0; }
.article-body h3 {
  font-size: 1.15rem; font-weight: 700;
  color: var(--primary);
  margin: 28px 0 10px;
}
.article-body p {
  font-size: 0.95rem;
  color: var(--text-sub);
  line-height: 1.85;
  margin-bottom: 16px;
}
.article-body ul { padding-left: 0; list-style: none; margin-bottom: 16px; }
.article-body ul li {
  display: flex; gap: 10px; align-items: baseline;
  font-size: 0.92rem; color: var(--text-sub); line-height: 1.7;
  padding: 6px 0;
  border-bottom: 1px solid var(--border-light);
}
.article-body ul li::before {
  content: '';
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--primary-light);
  flex-shrink: 0; margin-top: 8px;
}
.article-highlight {
  background: var(--primary-lighter);
  border-left: 4px solid var(--primary);
  border-radius: 0 12px 12px 0;
  padding: 20px 24px;
  margin: 24px 0;
}
.article-highlight p { margin: 0; font-size: 0.92rem; color: var(--primary); font-weight: 600; }
.kw-cloud { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0; }
.kw-tag {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.82rem;
  color: var(--text-sub);
  transition: all 0.2s;
}
.kw-tag:hover { background: var(--primary-lighter); color: var(--primary); border-color: var(--primary-light); }
.kw-tag.big { font-size: 0.9rem; background: var(--primary-lighter); color: var(--primary); border-color: var(--primary-light); }

.article-sidebar { position: sticky; top: 84px; }
.sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 20px;
}
.sidebar-card h4 { font-size: 0.88rem; font-weight: 800; color: var(--text-main); margin-bottom: 16px; text-transform: uppercase; letter-spacing: 0.5px; }
.toc-list { list-style: none; display: flex; flex-direction: column; gap: 4px; }
.toc-list li a {
  display: block;
  padding: 7px 12px;
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--text-sub);
  transition: all 0.2s;
}
.toc-list li a:hover { background: var(--primary-lighter); color: var(--primary); }
.toc-list li.active a { background: var(--primary); color: #fff; }
.dl-sidebar-btn {
  width: 100%;
  padding: 14px 20px;
  background: var(--primary);
  color: #fff;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 800;
  text-align: center;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  transition: all 0.2s;
}
.dl-sidebar-btn:hover { background: #0d5c3a; transform: translateY(-2px); }

.cta-article-box {
  background: linear-gradient(135deg, #0A4A3A, #0d6b52);
  border-radius: var(--radius-xl);
  padding: 48px 40px;
  text-align: center;
  color: #fff;
  margin: 48px 0;
}
.cta-article-box h2 { font-size: 1.8rem; font-weight: 900; margin-bottom: 12px; }
.cta-article-box p { font-size: 0.95rem; color: rgba(255,255,255,0.78); margin-bottom: 28px; line-height: 1.7; }
.cta-article-link {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 40px;
  background: var(--accent);
  color: #1a1a2e;
  border-radius: 50px;
  font-size: 1.05rem;
  font-weight: 800;
  transition: all 0.2s;
}
.cta-article-link:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 6px 24px rgba(245,166,35,0.4); }

.version-log { display: flex; flex-direction: column; gap: 0; }
.version-row {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}
.version-row:last-child { border-bottom: none; }
.ver-num { font-size: 0.85rem; font-weight: 800; color: var(--primary); padding-top: 2px; }
.ver-date { font-size: 0.75rem; color: var(--text-muted); margin-top: 2px; }
.ver-changes { display: flex; flex-direction: column; gap: 6px; }
.ver-change-item {
  display: flex; align-items: baseline; gap: 8px;
  font-size: 0.88rem; color: var(--text-sub);
}
.ver-change-item::before {
  content: '+';
  color: var(--primary-light);
  font-weight: 700;
  flex-shrink: 0;
}

.tips-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 20px;
}
.tip-card {
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 20px;
  display: flex; gap: 14px;
}
.tip-num {
  width: 32px; height: 32px;
  background: var(--primary);
  color: #fff;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem;
  font-weight: 800;
  flex-shrink: 0;
}
.tip-card h5 { font-size: 0.9rem; font-weight: 700; margin-bottom: 4px; color: var(--text-main); }
.tip-card p { font-size: 0.82rem; color: var(--text-sub); line-height: 1.6; }

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .platform-grid { grid-template-columns: 1fr 1fr; }
  .plat-card.win { grid-column: span 2; }
  .scenario-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-panel { display: none; }
  .hero h1 { font-size: 2.2rem; }
  .features-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; }
  .platform-grid { grid-template-columns: 1fr; }
  .plat-card.win { grid-column: span 1; }
  .other-platforms { grid-template-columns: 1fr; }
  .install-steps { flex-direction: column; gap: 24px; }
  .install-steps::before { display: none; }
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
  .cta-banner { flex-direction: column; text-align: center; }
  .cta-actions { align-items: center; }
  .win-card { grid-template-columns: 1fr; }
  .nav-inner { gap: 4px; }
  .nav-links a { padding: 7px 10px; font-size: 0.82rem; }
  .nav-dl-btn { display: none !important; }
  .tips-grid { grid-template-columns: 1fr; }
  .footer-top { flex-direction: column; }
  .footer-links { flex-wrap: wrap; gap: 12px; }
  .section-title { font-size: 1.7rem; }
}
@media (max-width: 480px) {
  .hero { padding: 56px 20px 64px; }
  .hero h1 { font-size: 1.85rem; }
  .section { padding: 56px 20px; }
  .hero-stats { gap: 16px; }
}