/* ===== Reset & Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #0f172a;
  color: #e2e8f0;
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: #818cf8; text-decoration: none; transition: color .2s; }
a:hover { color: #a5b4fc; }
img { max-width: 100%; }
code { background: rgba(139,92,246,.15); padding: 2px 6px; border-radius: 4px; font-size: .9em; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== Navbar ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,.06);
  transition: background .3s, box-shadow .3s;
}
.navbar.scrolled { background: rgba(15,23,42,.95); box-shadow: 0 4px 30px rgba(0,0,0,.3); }
.nav-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; height: 64px; }
.nav-logo { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 18px; color: #fff; }
.logo-icon { font-size: 22px; }
.nav-menu { list-style: none; display: flex; align-items: center; gap: 8px; }
.nav-link { padding: 8px 16px; border-radius: 8px; color: rgba(255,255,255,.7); font-size: 14px; font-weight: 500; transition: all .2s; }
.nav-link:hover { color: #fff; background: rgba(255,255,255,.08); }
.nav-cta { background: linear-gradient(135deg, #6366f1, #8b5cf6) !important; color: #fff !important; }
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 15px rgba(99,102,241,.4); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: #fff; margin: 5px 0; border-radius: 2px; transition: .3s; }

/* ===== Hero ===== */
.hero {
  position: relative; min-height: 100vh; display: flex; flex-direction: column; align-items: center;
  justify-content: center; padding: 100px 24px 60px; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(ellipse at 20% 20%, rgba(99,102,241,.25) 0%, transparent 50%),
              radial-gradient(ellipse at 80% 20%, rgba(139,92,246,.2) 0%, transparent 50%),
              radial-gradient(ellipse at 50% 80%, rgba(59,130,246,.15) 0%, transparent 50%),
              linear-gradient(160deg, #0f172a 0%, #1e293b 100%);
}
.hero-particles { position: absolute; inset: 0; z-index: 1; }
.hero-content { position: relative; z-index: 2; text-align: center; max-width: 800px; }
.hero-badge {
  display: inline-block; padding: 6px 18px; border-radius: 20px; font-size: 13px; font-weight: 600;
  background: rgba(99,102,241,.15); border: 1px solid rgba(99,102,241,.3); color: #a5b4fc; margin-bottom: 24px;
}
.hero-title { font-size: clamp(36px, 6vw, 64px); font-weight: 900; line-height: 1.2; margin-bottom: 20px; letter-spacing: -1px; }
.gradient-text {
  background: linear-gradient(135deg, #818cf8, #c084fc, #f472b6);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle { font-size: 18px; color: rgba(255,255,255,.6); line-height: 1.8; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 48px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; border-radius: 12px;
  font-size: 15px; font-weight: 600; cursor: pointer; transition: all .3s; border: none; text-decoration: none;
}
.btn-primary { background: linear-gradient(135deg, #6366f1, #8b5cf6); color: #fff; box-shadow: 0 4px 20px rgba(99,102,241,.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(99,102,241,.4); color: #fff; }
.btn-outline { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.2); }
.btn-outline:hover { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.4); color: #fff; }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-icon { font-size: 18px; }
.hero-stats { display: flex; gap: 48px; justify-content: center; }
.stat-item { text-align: center; }
.stat-number { display: block; font-size: 36px; font-weight: 900; color: #fff; }
.stat-label { font-size: 13px; color: rgba(255,255,255,.5); }

/* ===== Hero Screenshot Mock ===== */
.hero-screenshot { position: relative; z-index: 2; margin-top: 60px; max-width: 900px; width: 100%; padding: 0 24px; }
.screenshot-frame {
  border-radius: 16px; overflow: hidden;
  box-shadow: 0 25px 80px rgba(0,0,0,.5), 0 0 0 1px rgba(255,255,255,.08);
  transform: perspective(1200px) rotateX(4deg); transition: transform .5s;
}
.screenshot-frame:hover { transform: perspective(1200px) rotateX(0deg); }
.screenshot-titlebar {
  display: flex; align-items: center; gap: 8px; padding: 10px 16px;
  background: rgba(30,41,59,.95); border-bottom: 1px solid rgba(255,255,255,.06);
}
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #22c55e; }
.titlebar-text { margin-left: 12px; font-size: 13px; color: rgba(255,255,255,.5); }
.screenshot-body { display: flex; background: #1e293b; min-height: 320px; }
.mock-sidebar {
  width: 150px; background: rgba(255,255,255,.06); padding: 12px 0;
  border-right: 1px solid rgba(255,255,255,.06); flex-shrink: 0;
}
.mock-sidebar.compact { width: 130px; }
.mock-logo { padding: 8px 14px; font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 8px; border-bottom: 1px solid rgba(255,255,255,.06); }
.mock-menu-item {
  padding: 8px 14px; font-size: 12px; color: rgba(255,255,255,.5); cursor: default;
  border-left: 3px solid transparent; transition: .2s;
}
.mock-menu-item.active { color: #fff; background: rgba(255,255,255,.08); border-left-color: #818cf8; }
.mock-content { flex: 1; padding: 16px; overflow: hidden; }
.mock-content.compact { padding: 12px; }
.mock-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.mock-search { width: 200px; height: 32px; background: rgba(255,255,255,.06); border-radius: 8px; border: 1px solid rgba(255,255,255,.08); }
.mock-search.small { width: 160px; height: 28px; }
.mock-user { font-size: 12px; color: rgba(255,255,255,.5); }
.mock-announcement {
  padding: 8px 14px; background: rgba(99,102,241,.1); border-radius: 8px; font-size: 12px;
  color: rgba(255,255,255,.6); margin-bottom: 12px; border: 1px solid rgba(99,102,241,.15);
}
.mock-toolbar { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.mock-filter-btns { display: flex; gap: 8px; font-size: 11px; }
.mock-filter-btns span { padding: 4px 10px; border-radius: 6px; background: rgba(99,102,241,.2); color: #a5b4fc; }
.mock-filter-btns span.dim { background: rgba(255,255,255,.04); color: rgba(255,255,255,.4); }
.mock-table { border-radius: 8px; overflow: hidden; border: 1px solid rgba(255,255,255,.06); }
.mock-table.compact { font-size: 11px; }
.mock-row { display: grid; grid-template-columns: 2fr 1fr 1fr 0.8fr; padding: 8px 14px; font-size: 12px; color: rgba(255,255,255,.6); border-bottom: 1px solid rgba(255,255,255,.04); }
.mock-row.head { background: rgba(255,255,255,.04); color: rgba(255,255,255,.4); font-weight: 600; font-size: 11px; }
.status-on { color: #22c55e; }
.status-off { color: #ef4444; }
.mock-btn { color: #818cf8; cursor: default; }
.mock-pagination { text-align: center; padding: 10px; font-size: 12px; color: rgba(255,255,255,.4); letter-spacing: 2px; }

/* ===== Section Common ===== */
.section { padding: 100px 0; position: relative; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-badge {
  display: inline-block; padding: 4px 14px; border-radius: 16px; font-size: 13px; font-weight: 600;
  background: rgba(99,102,241,.12); color: #a5b4fc; border: 1px solid rgba(99,102,241,.2); margin-bottom: 16px;
}
.section-title { font-size: clamp(28px, 4vw, 42px); font-weight: 800; margin-bottom: 16px; }
.section-desc { font-size: 16px; color: rgba(255,255,255,.5); max-width: 600px; margin: 0 auto; }

/* ===== Features Grid ===== */
.features-section { background: linear-gradient(180deg, #0f172a 0%, #1a1f3a 50%, #0f172a 100%); }
.features-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.feature-card {
  position: relative; padding: 32px; border-radius: 16px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.06);
  transition: all .3s; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; inset: 0; border-radius: 16px;
  background: linear-gradient(135deg, rgba(99,102,241,.08), transparent); opacity: 0; transition: .3s;
}
.feature-card:hover { transform: translateY(-4px); border-color: rgba(99,102,241,.2); box-shadow: 0 20px 50px rgba(0,0,0,.3); }
.feature-card:hover::before { opacity: 1; }
.feature-card.featured { border-color: rgba(99,102,241,.2); }
.feature-badge {
  position: absolute; top: 16px; right: 16px; padding: 2px 10px; border-radius: 10px;
  font-size: 11px; font-weight: 600; background: linear-gradient(135deg, #6366f1, #8b5cf6); color: #fff;
}
.feature-icon { width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 26px; margin-bottom: 20px; position: relative; z-index: 1; }
.feature-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; position: relative; z-index: 1; }
.feature-card p { font-size: 14px; color: rgba(255,255,255,.55); margin-bottom: 16px; position: relative; z-index: 1; }
.feature-list { list-style: none; position: relative; z-index: 1; }
.feature-list li { padding: 4px 0; font-size: 13px; color: rgba(255,255,255,.5); }
.feature-list li::before { content: '✓ '; color: #22c55e; font-weight: 700; }

/* ===== Screenshots Section ===== */
.screenshots-section { background: #0f172a; }
.screenshot-tabs { display: flex; justify-content: center; gap: 8px; margin-bottom: 40px; flex-wrap: wrap; }
.tab-btn {
  padding: 10px 22px; border-radius: 10px; border: 1px solid rgba(255,255,255,.1);
  background: rgba(255,255,255,.04); color: rgba(255,255,255,.6); font-size: 14px;
  font-weight: 500; cursor: pointer; transition: all .2s;
}
.tab-btn:hover { background: rgba(255,255,255,.08); color: #fff; }
.tab-btn.active { background: linear-gradient(135deg, #6366f1, #8b5cf6); color: #fff; border-color: transparent; box-shadow: 0 4px 15px rgba(99,102,241,.3); }
.screenshot-panel { display: none; animation: fadeUp .4s ease; }
.screenshot-panel.active { display: block; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.panel-content { display: grid; grid-template-columns: 1fr 1.5fr; gap: 40px; align-items: center; }
.panel-info h3 { font-size: 24px; margin-bottom: 12px; }
.panel-info p { color: rgba(255,255,255,.55); margin-bottom: 16px; font-size: 15px; }
.panel-info ul { list-style: none; }
.panel-info li { padding: 6px 0; font-size: 14px; color: rgba(255,255,255,.6); }
.panel-info li strong { color: #a5b4fc; }
.panel-screenshot { perspective: 1000px; }

/* Mock Windows for screenshots section */
.mock-window {
  border-radius: 12px; overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,.4), 0 0 0 1px rgba(255,255,255,.06);
  background: #1e293b;
}
.mock-window.large .screenshot-body { min-height: 300px; }
.mock-window .mock-titlebar { display: flex; align-items: center; gap: 8px; padding: 10px 14px; background: rgba(15,23,42,.9); border-bottom: 1px solid rgba(255,255,255,.06); font-size: 12px; color: rgba(255,255,255,.4); }
.mock-login-body {
  display: flex; align-items: center; justify-content: center; min-height: 280px; padding: 30px;
  background: linear-gradient(135deg, #2a3447, #3a4457);
}
.mock-login-card {
  background: rgba(255,255,255,.08); backdrop-filter: blur(10px); border-radius: 16px;
  padding: 30px; width: 260px; border: 1px solid rgba(255,255,255,.1);
}
.mock-login-title { text-align: center; font-size: 16px; font-weight: 700; margin-bottom: 20px; color: #fff; }
.mock-input-group { margin-bottom: 14px; }
.mock-input-group label { display: block; font-size: 11px; color: rgba(255,255,255,.5); margin-bottom: 4px; }
.mock-input {
  padding: 8px 12px; border-radius: 8px; font-size: 13px; color: rgba(255,255,255,.7);
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1);
}
.mock-input.captcha { color: #f59e0b; font-weight: 600; }
.mock-login-btn {
  text-align: center; padding: 10px; border-radius: 10px; font-size: 14px; font-weight: 600;
  background: linear-gradient(135deg, #6366f1, #8b5cf6); color: #fff; margin-top: 8px;
}

/* Mock Tuangou/Takeout */
.mock-tuangou-body { padding: 16px; }
.mock-tabs { display: flex; gap: 6px; margin-bottom: 16px; flex-wrap: wrap; }
.mock-tab {
  padding: 6px 14px; border-radius: 8px; font-size: 12px; color: rgba(255,255,255,.5);
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.06);
}
.mock-tab.active { color: #fff; border-color: transparent; }
.mock-sync-form { padding: 0; }
.mock-form-row { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.mock-form-row label { font-size: 12px; color: rgba(255,255,255,.5); width: 100px; flex-shrink: 0; text-align: right; }
.mock-form-row .mock-input { flex: 1; }
.mock-product-list { margin: 12px 0; }
.mock-product {
  display: flex; gap: 12px; padding: 8px 12px; font-size: 12px; color: rgba(255,255,255,.6);
  border-bottom: 1px solid rgba(255,255,255,.04);
}
.mock-sync-btn {
  display: inline-block; padding: 10px 24px; border-radius: 10px; font-size: 13px; font-weight: 600;
  background: linear-gradient(135deg, #22c55e, #16a34a); color: #fff; margin-top: 8px;
}
.mock-log-area { background: rgba(0,0,0,.2); border-radius: 10px; padding: 14px; margin-top: 12px; }
.log-line { padding: 4px 0; font-size: 12px; font-family: monospace; }
.log-line.success { color: #22c55e; }
.log-line.info { color: #38bdf8; }
.log-line.error { color: #ef4444; }

/* Mock Pangu */
.mock-pangu-body { padding: 20px; }
.mock-pangu-btns { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 16px; }
.mock-pangu-btn {
  padding: 14px; border-radius: 10px; font-size: 13px; font-weight: 600; text-align: center;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.08);
}
.mock-pangu-btn.primary { background: rgba(99,102,241,.15); border-color: rgba(99,102,241,.3); color: #a5b4fc; }
.mock-pangu-btn.orange { background: rgba(249,115,22,.12); border-color: rgba(249,115,22,.25); color: #fb923c; }
.mock-pangu-btn.green { background: rgba(34,197,94,.12); border-color: rgba(34,197,94,.25); color: #4ade80; }
.mock-pangu-btn.purple { background: rgba(139,92,246,.12); border-color: rgba(139,92,246,.25); color: #a78bfa; }
.mock-sync-status { background: rgba(0,0,0,.2); border-radius: 10px; padding: 14px; }
.mock-progress { height: 8px; background: rgba(255,255,255,.06); border-radius: 4px; margin-bottom: 12px; overflow: hidden; }
.mock-progress-bar { height: 100%; background: linear-gradient(90deg, #22c55e, #16a34a); border-radius: 4px; transition: width 1s; }

/* ===== Workflow ===== */
.workflow-section { background: linear-gradient(180deg, #0f172a, #162033); }
.workflow-grid { display: flex; align-items: center; justify-content: center; gap: 12px; flex-wrap: wrap; }
.workflow-step {
  text-align: center; padding: 32px 24px; border-radius: 16px; width: 200px;
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.06); transition: .3s;
}
.workflow-step:hover { transform: translateY(-4px); border-color: rgba(99,102,241,.2); }
.step-number { font-size: 13px; font-weight: 800; color: rgba(99,102,241,.4); margin-bottom: 8px; }
.step-icon { font-size: 36px; margin-bottom: 12px; }
.workflow-step h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.workflow-step p { font-size: 13px; color: rgba(255,255,255,.5); }
.workflow-arrow { font-size: 24px; color: rgba(255,255,255,.15); }

/* ===== FAQ ===== */
.faq-section { background: #0f172a; }
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid rgba(255,255,255,.06); }
.faq-question {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 0; cursor: pointer; font-size: 16px; font-weight: 600; color: #e2e8f0; transition: .2s;
}
.faq-question:hover { color: #a5b4fc; }
.faq-toggle { font-size: 24px; color: rgba(255,255,255,.3); transition: transform .3s; }
.faq-item.open .faq-toggle { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .3s ease, padding .3s; }
.faq-item.open .faq-answer { max-height: 200px; padding-bottom: 20px; }
.faq-answer p { font-size: 14px; color: rgba(255,255,255,.55); line-height: 1.8; }

/* ===== Download ===== */
.download-section { padding: 80px 0 100px; }
.download-card {
  text-align: center; padding: 60px 40px; border-radius: 24px;
  background: linear-gradient(135deg, rgba(99,102,241,.12), rgba(139,92,246,.08));
  border: 1px solid rgba(99,102,241,.15);
}
.download-card h2 { font-size: 32px; margin-bottom: 12px; }
.download-card > p { color: rgba(255,255,255,.5); margin-bottom: 28px; font-size: 16px; }
.download-info { display: flex; justify-content: center; gap: 28px; margin-bottom: 32px; flex-wrap: wrap; }
.download-info span { font-size: 14px; color: rgba(255,255,255,.55); }
.download-btn { font-size: 18px !important; padding: 16px 40px !important; }
.download-note { margin-top: 16px; font-size: 13px; color: rgba(255,255,255,.35); }

/* ===== Footer ===== */
.footer { padding: 60px 0 30px; background: #0a0f1e; border-top: 1px solid rgba(255,255,255,.04); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand p { color: rgba(255,255,255,.4); font-size: 14px; margin-top: 12px; line-height: 1.7; }
.footer-logo { display: flex; align-items: center; gap: 8px; font-size: 18px; font-weight: 700; color: #fff; }
.footer-links h4 { font-size: 14px; font-weight: 600; color: rgba(255,255,255,.7); margin-bottom: 16px; }
.footer-links ul { list-style: none; }
.footer-links li { padding: 4px 0; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,.4); }
.footer-links a:hover { color: #a5b4fc; }
.footer-version { margin-top: 16px; padding: 6px 12px; border-radius: 8px; background: rgba(255,255,255,.04); font-size: 12px; color: rgba(255,255,255,.4); display: inline-block; }
.footer-bottom { text-align: center; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.04); }
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,.3); }

/* ===== Back to Top ===== */
.back-to-top {
  position: fixed; bottom: 30px; right: 30px; width: 44px; height: 44px; border-radius: 12px;
  background: rgba(99,102,241,.9); color: #fff; border: none; font-size: 20px;
  cursor: pointer; opacity: 0; visibility: hidden; transition: all .3s; z-index: 999;
  box-shadow: 0 4px 15px rgba(99,102,241,.3);
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { transform: translateY(-3px); }

/* ===== Guide Page ===== */
.guide-hero {
  padding: 120px 0 50px; text-align: center;
  background: linear-gradient(180deg, #1a1f3a, #0f172a);
}
.guide-hero h1 { font-size: 40px; font-weight: 800; margin-bottom: 12px; }
.guide-hero p { color: rgba(255,255,255,.5); font-size: 16px; }
.guide-section { padding: 40px 0 80px; }
.guide-layout { display: grid; grid-template-columns: 220px 1fr; gap: 40px; align-items: start; }
.guide-sidebar { position: sticky; top: 84px; }
.guide-toc { background: rgba(255,255,255,.04); border-radius: 14px; padding: 20px; border: 1px solid rgba(255,255,255,.06); }
.guide-toc h4 { font-size: 14px; font-weight: 600; color: rgba(255,255,255,.6); margin-bottom: 14px; padding-bottom: 10px; border-bottom: 1px solid rgba(255,255,255,.06); }
.guide-toc ul { list-style: none; }
.guide-toc li { padding: 0; }
.toc-link {
  display: block; padding: 7px 12px; border-radius: 8px; font-size: 13px;
  color: rgba(255,255,255,.5); transition: all .2s; border-left: 2px solid transparent;
}
.toc-link:hover { color: #fff; background: rgba(255,255,255,.04); }
.toc-link.active { color: #a5b4fc; background: rgba(99,102,241,.1); border-left-color: #818cf8; }
.guide-content { min-width: 0; }
.guide-article { margin-bottom: 48px; scroll-margin-top: 84px; }
.guide-article h2 { font-size: 28px; font-weight: 800; margin-bottom: 20px; padding-bottom: 12px; border-bottom: 1px solid rgba(255,255,255,.06); }
.guide-card {
  background: rgba(255,255,255,.03); border-radius: 16px; padding: 28px;
  border: 1px solid rgba(255,255,255,.06);
}
.guide-card h3 { font-size: 18px; font-weight: 700; margin: 20px 0 14px; color: #c4b5fd; }
.guide-card h3:first-child { margin-top: 0; }
.guide-card p { font-size: 14px; color: rgba(255,255,255,.6); margin-bottom: 12px; }
.guide-table { width: 100%; border-collapse: collapse; margin: 12px 0; }
.guide-table th, .guide-table td {
  padding: 10px 14px; text-align: left; font-size: 13px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.guide-table th { color: rgba(255,255,255,.5); font-weight: 600; background: rgba(255,255,255,.02); }
.guide-table td { color: rgba(255,255,255,.7); }
.permission-table td:nth-child(n+2) { text-align: center; }
.permission-table th:nth-child(n+2) { text-align: center; }
.guide-steps { display: flex; flex-direction: column; gap: 12px; margin: 12px 0; }
.guide-step { display: flex; align-items: flex-start; gap: 14px; }
.step-num {
  flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%;
  background: linear-gradient(135deg, #6366f1, #8b5cf6); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700;
}
.guide-step div { flex: 1; }
.guide-step strong { display: block; font-size: 14px; color: #e2e8f0; }
.guide-step p { font-size: 13px; color: rgba(255,255,255,.5); margin: 4px 0 0; }
.guide-tip {
  margin-top: 16px; padding: 14px 18px; border-radius: 10px;
  background: rgba(99,102,241,.08); border-left: 4px solid #818cf8; font-size: 13px; color: rgba(255,255,255,.6);
}
.guide-tip.warning { background: rgba(249,115,22,.08); border-left-color: #f97316; }
.feature-desc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 12px 0; }
.feature-desc-item {
  padding: 16px; border-radius: 10px; background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.04);
}
.feature-desc-item h4 { font-size: 14px; font-weight: 600; margin-bottom: 6px; color: #e2e8f0; }
.feature-desc-item p { font-size: 13px; color: rgba(255,255,255,.5); margin: 0; }

/* Guide Tabs */
.guide-tabs { display: flex; gap: 6px; margin: 16px 0 12px; flex-wrap: wrap; }
.guide-tab-btn {
  padding: 8px 18px; border-radius: 8px; border: 1px solid rgba(255,255,255,.1);
  background: rgba(255,255,255,.04); color: rgba(255,255,255,.5); font-size: 13px;
  cursor: pointer; transition: .2s;
}
.guide-tab-btn:hover { background: rgba(255,255,255,.08); color: #fff; }
.guide-tab-btn.active { background: rgba(99,102,241,.15); color: #a5b4fc; border-color: rgba(99,102,241,.3); }
.guide-tab-panel { display: none; margin-top: 16px; }
.guide-tab-panel.active { display: block; }
.guide-tab-panel h4 { font-size: 16px; font-weight: 700; margin-bottom: 8px; color: #e2e8f0; }
.guide-tab-panel p { font-size: 14px; color: rgba(255,255,255,.55); margin-bottom: 12px; }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .panel-content { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .guide-layout { grid-template-columns: 1fr; }
  .guide-sidebar { position: static; }
  .feature-desc-grid { grid-template-columns: 1fr; }
  .workflow-arrow { display: none; }
  .workflow-grid { flex-direction: column; }
  .workflow-step { width: 100%; max-width: 300px; }
}
@media (max-width: 768px) {
  .nav-menu { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; background: rgba(15,23,42,.98); padding: 16px; gap: 4px; border-top: 1px solid rgba(255,255,255,.06); }
  .nav-menu.open { display: flex; }
  .nav-toggle { display: block; }
  .hero-stats { gap: 24px; }
  .hero-screenshot { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .download-info { flex-direction: column; gap: 8px; }
  .mock-pangu-btns { grid-template-columns: 1fr; }
}