/* ============================================================
   知微智能助手 - 官网样式表
   styles.css
   ============================================================ */

/* -----------------------------------------------
   CSS 变量 (Design Tokens)
----------------------------------------------- */
:root {
  /* Colors */
  --c-primary:        #2563EB;
  --c-primary-dark:   #1E40AF;
  --c-primary-light:  #3B82F6;
  --c-secondary:      #7C3AED;
  --c-accent-gold:    #F59E0B;
  --c-dark:           #0F172A;
  --c-dark-2:         #1E293B;
  --c-muted:          #64748B;
  --c-border:         #E2E8F0;
  --c-bg:             #F8FAFC;
  --c-white:          #FFFFFF;

  /* Gradients */
  --g-hero:    linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
  --g-primary: linear-gradient(135deg, #2563EB 0%, #3B82F6 100%);
  --g-card:    linear-gradient(135deg, rgba(255,255,255,1) 0%, rgba(248,250,252,1) 100%);
  --g-gold:    linear-gradient(135deg, #F59E0B 0%, #F97316 100%);

  /* Shadows */
  --s-sm:      0 1px 3px rgba(0,0,0,.04), 0 1px 2px rgba(0,0,0,.02);
  --s-md:      0 8px 24px rgba(15,23,42,.04), 0 2px 8px rgba(15,23,42,.02);
  --s-lg:      0 24px 48px rgba(15,23,42,.06), 0 12px 24px rgba(15,23,42,.04);
  --s-primary: 0 12px 32px rgba(37,99,235,.20);
  --s-gold:    0 12px 32px rgba(245,158,11,.15);
  --s-phone:   0 32px 80px rgba(15,23,42,.08), 0 16px 40px rgba(15,23,42,.04);

  /* Radii */
  --r-sm:   12px;
  --r-md:   20px;
  --r-lg:   28px;
  --r-xl:   40px;
  --r-full: 9999px;

  /* Spacing */
  --section-pad: 6rem 0;

  /* Transitions */
  --t-fast:   150ms ease;
  --t-base:   260ms ease;
  --t-slow:   420ms ease;
}

/* -----------------------------------------------
   Reset & Base
----------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
  color: var(--c-dark);
  background: var(--c-white);
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; }

/* -----------------------------------------------
   Layout Helpers
----------------------------------------------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* -----------------------------------------------
   Navbar
----------------------------------------------- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  transition: background var(--t-base), box-shadow var(--t-base);
}

.navbar.scrolled {
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: 0 1px 0 rgba(15,23,42,.05);
}

.navbar__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.navbar__logo {
  display: flex;
  align-items: center;
  gap: .6rem;
  flex-shrink: 0;
}
.logo-icon { width: 38px; height: 38px; }
.logo-wordmark {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--c-dark);
  letter-spacing: -.3px;
  transition: color var(--t-fast);
}
.navbar.scrolled .logo-wordmark { color: var(--c-dark); }
.logo-wordmark em {
  font-style: normal;
  color: var(--c-border);
  transition: color var(--t-fast);
}
.navbar.scrolled .logo-wordmark em { color: var(--c-border); }

/* Nav links */
.navbar__links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}
.navbar__links a {
  font-size: .875rem;
  font-weight: 500;
  color: var(--c-muted);
  transition: color var(--t-fast);
}
.navbar__links a:hover { color: var(--c-primary); }
.navbar.scrolled .navbar__links a { color: var(--c-muted); }
.navbar.scrolled .navbar__links a:hover { color: var(--c-primary); }

/* CTA button */
.btn-nav {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .55rem 1.4rem;
  border-radius: var(--r-full);
  font-size: .85rem;
  font-weight: 600;
  background: var(--c-primary);
  color: var(--c-white) !important;
  border: transparent;
  box-shadow: var(--s-sm);
  transition: all var(--t-base);
}
.btn-nav:hover {
  background: var(--c-primary-light);
  transform: translateY(-1px);
  box-shadow: var(--s-md);
}
.navbar.scrolled .btn-nav {
  background: var(--c-primary);
  border-color: transparent;
  box-shadow: var(--s-sm);
  color: var(--c-white) !important;
}
.navbar.scrolled .btn-nav:hover {
  background: var(--c-primary-light);
  box-shadow: var(--s-md);
}

/* -----------------------------------------------
   Hero Section
----------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  background: radial-gradient(ellipse 70% 80% at 85% 15%, rgba(219,234,254,0.55) 0%, transparent 55%),
              radial-gradient(ellipse 50% 50% at 10% 80%, rgba(196,181,253,0.2) 0%, transparent 50%),
              linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 7rem 0 5rem;
}

/* Ambient glowing blobs */
.hero__blobs {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
}
.blob-1 {
  width: 700px; height: 700px;
  top: -200px; right: -150px;
  background: rgba(59,130,246,.18);
  animation: blobDrift 9s ease-in-out infinite;
}
.blob-2 {
  width: 500px; height: 500px;
  bottom: -150px; left: -100px;
  background: rgba(124,58,237,.15);
  animation: blobDrift 12s ease-in-out infinite reverse;
}
.blob-3 {
  width: 350px; height: 350px;
  top: 35%; left: 38%;
  background: rgba(6,182,212,.08);
  animation: blobDrift 15s ease-in-out infinite 2s;
}
@keyframes blobDrift {
  0%,100% { transform: translate(0, 0) scale(1); }
  33%      { transform: translate(30px, -20px) scale(1.04); }
  66%      { transform: translate(-20px, 25px) scale(.97); }
}

/* Grid layout */
.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 4rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

/* Text side */
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: rgba(255,255,255,.6);
  border: 1px solid rgba(15,23,42,.05);
  padding: .38rem 1rem;
  border-radius: var(--r-full);
  color: var(--c-dark);
  font-size: .8rem;
  font-weight: 600;
  margin-bottom: 1.75rem;
  backdrop-filter: blur(12px);
  box-shadow: var(--s-sm);
}
.badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #10B981;
  animation: pulseDot 2s ease-in-out infinite;
}
@keyframes pulseDot {
  0%,100% { opacity: 1; box-shadow: 0 0 0 0 rgba(16,185,129,.3); }
  50%      { opacity: .7; box-shadow: 0 0 0 6px rgba(16,185,129,0); }
}

.hero__title {
  font-size: 3.8rem;
  font-weight: 800;
  color: var(--c-dark);
  line-height: 1.15;
  letter-spacing: -2px;
  margin-bottom: 1.4rem;
}
.hero__title .highlight {
  display: block;
  background: linear-gradient(118deg, #1D4ED8 0%, #4F46E5 55%, #7C3AED 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__desc {
  font-size: 1.05rem;
  color: var(--c-muted);
  line-height: 1.9;
  margin-bottom: 2.2rem;
  max-width: 520px;
}

/* CTA row */
.hero__cta {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}
.btn-cta-primary {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .85rem 2rem;
  border-radius: var(--r-full);
  background: var(--g-primary);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  box-shadow: var(--s-primary);
  transition: all var(--t-base);
  white-space: nowrap;
}
.btn-cta-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 44px rgba(37,99,235,.28);
}
.btn-cta-ghost {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  color: var(--c-muted);
  font-size: .95rem;
  font-weight: 600;
  transition: color var(--t-fast);
  white-space: nowrap;
}
.btn-cta-ghost:hover { color: var(--c-primary); }

/* Trust bar */
.hero__trust {
  display: flex;
  align-items: center;
  gap: .75rem;
}
.trust-avatars {
  display: flex;
}
.trust-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  border: 2px solid #fff;
  margin-left: -8px;
  display: flex; align-items: center; justify-content: center;
  font-size: .72rem; font-weight: 700; color: #fff;
  box-shadow: 0 2px 6px rgba(0,0,0,.1);
}
.trust-avatar:first-child { margin-left: 0; }
.trust-text {
  font-size: .84rem;
  color: var(--c-muted);
}
.trust-text strong { color: var(--c-dark); font-weight: 700; }

.hero__actions { display: flex; flex-direction: column; gap: 1.1rem; }

.dl-buttons {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
}

/* Download buttons */
.btn-dl {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  padding: .8rem 1.5rem;
  border-radius: var(--r-sm);
  font-size: .88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--t-base);
  border: none;
  flex-shrink: 0;
}
.btn-dl__icon {
  width: 38px; height: 38px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.btn-dl__icon svg { width: 20px; height: 20px; }
.btn-dl__text { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.2; }
.btn-dl__text .sub  { font-size: .68rem; opacity: .7; font-weight: 500; }
.btn-dl__text .main { font-size: .9rem; font-weight: 700; }

.btn-dl--android {
  background: var(--c-primary);
  color: var(--c-white);
  box-shadow: var(--s-md);
}
.btn-dl--android .btn-dl__icon { background: rgba(255,255,255,.2); }
.btn-dl--android:hover { transform: translateY(-2px); box-shadow: var(--s-lg); }

.btn-dl--ios {
  background: rgba(255,255,255,.8);
  color: var(--c-dark);
  border: 1px solid rgba(15,23,42,.05);
  backdrop-filter: blur(12px);
  box-shadow: var(--s-md);
}
.btn-dl--ios .btn-dl__icon { background: rgba(15,23,42,.05); }
.btn-dl--ios .btn-dl__icon svg { fill: var(--c-dark); }
.btn-dl--ios:hover { background: rgba(255,255,255,1); transform: translateY(-2px); box-shadow: var(--s-lg); }

.hero__footnote {
  font-size: .78rem;
  color: var(--c-muted);
  opacity: .8;
}

/* ------ Phone Mockup ------ */
.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.phone-wrapper {
  position: relative;
  animation: phoneFloat 6s ease-in-out infinite;
  filter: drop-shadow(var(--s-phone));
}
@keyframes phoneFloat {
  0%,100% { transform: translateY(0) rotate(0deg); }
  50%      { transform: translateY(-16px) rotate(.8deg); }
}

.phone-frame {
  width: 290px; height: 600px;
  background: #F8FAFC;
  border-radius: 48px;
  padding: 8px;
  border: 2px solid rgba(15,23,42,.07);
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 0 0 2px rgba(255,255,255,1), 0 0 0 1px rgba(15,23,42,.02);
}

/* Dynamic island */
.phone-island {
  position: absolute;
  top: 14px; left: 50%;
  transform: translateX(-50%);
  width: 88px; height: 28px;
  background: #0F172A;
  border-radius: 20px;
  z-index: 10;
  display: flex; align-items: center; justify-content: center;
  gap: 6px;
}
.island-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: #1E293B;
}
.island-dot.small { width: 7px; height: 7px; }

.phone-screen {
  width: 100%; height: 100%;
  background: #F1F5F9;
  border-radius: 38px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
  flex-direction: column;
}

/* App UI elements */
.app-header-bar {
  background: linear-gradient(160deg, #1D3461 0%, #1E40AF 50%, #2563EB 100%);
  padding: 48px 14px 14px;
  flex-shrink: 0;
}
.app-tabs {
  display: flex;
  gap: 3px;
  background: rgba(255,255,255,.18);
  border-radius: 8px;
  padding: 3px;
}
.app-tab {
  flex: 1; text-align: center;
  padding: 4px 0;
  border-radius: 6px;
  font-size: 10px;
  color: rgba(255,255,255,.65);
  font-weight: 500;
  transition: all var(--t-fast);
}
.app-tab.active {
  background: white;
  color: #1E40AF;
  font-weight: 700;
  box-shadow: 0 1px 4px rgba(0,0,0,.12);
}

.app-body {
  flex: 1;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  overflow: hidden;
}

/* Search bar */
.app-search {
  background: white;
  border-radius: 10px;
  padding: 7px 11px;
  display: flex; align-items: center; gap: 6px;
  box-shadow: var(--s-sm);
}
.app-search svg { width: 13px; height: 13px; opacity: .35; flex-shrink: 0; }
.app-search span { font-size: 9.5px; color: #94A3B8; }

/* Cards */
.app-card {
  background: white;
  border-radius: 12px;
  padding: 11px 12px;
  box-shadow: var(--s-sm);
}
.app-card__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 6px;
}
.app-card__title { font-size: 10px; font-weight: 700; color: #0F172A; }
.app-card__sub   { font-size: 8.5px; color: #94A3B8; margin-bottom: 7px; }

.rating-row {
  display: flex; align-items: center; gap: 5px;
  margin-bottom: 3px;
}
.rating-label { font-size: 8.5px; color: #64748B; width: 20px; }
.rating-bar {
  flex: 1; height: 4px;
  background: #E2E8F0;
  border-radius: 2px;
  overflow: hidden;
}
.rating-bar__fill { height: 100%; border-radius: 2px; }
.fill-buy   { background: #2563EB; width: 78%; }
.fill-hold  { background: #F59E0B; width: 15%; }
.fill-sell  { background: #EF4444; width: 7%;  }
.rating-pct { font-size: 8.5px; font-weight: 700; color: #0F172A; width: 22px; text-align: right; }

.chip {
  display: inline-flex; align-items: center; gap: 2px;
  padding: 2px 7px;
  border-radius: 5px;
  font-size: 8px;
  font-weight: 700;
  margin-top: 5px;
}
.chip-green { background: #DCFCE7; color: #16A34A; }
.chip-blue  { background: #DBEAFE; color: #2563EB; }
.chip-gold  { background: #FEF3C7; color: #D97706; }
.chip-red   { background: #FFE4E6; color: #E11D48; }

/* Mini pulse chart */
.app-chart {
  height: 36px;
  display: flex;
  align-items: flex-end;
  gap: 2px;
  padding: 4px 0 0;
}
.chart-bar {
  flex: 1;
  border-radius: 2px 2px 0 0;
  background: linear-gradient(180deg, #60A5FA, #3B82F6);
  opacity: .8;
  transition: all .3s;
}

/* Bottom nav */
.app-nav {
  height: 54px;
  background: white;
  border-top: 1px solid #F0F2F5;
  display: flex; align-items: center;
  flex-shrink: 0;
}
.app-nav__item {
  flex: 1; display: flex;
  flex-direction: column;
  align-items: center; gap: 2px;
}
.app-nav__icon {
  width: 20px; height: 20px;
  border-radius: 6px;
  background: #E2E8F0;
  transition: background var(--t-fast);
}
.app-nav__item.active .app-nav__icon {
  background: linear-gradient(135deg, #2563EB, #3B82F6);
  box-shadow: 0 2px 8px rgba(37,99,235,.3);
}
.app-nav__label { font-size: 8px; color: #94A3B8; }
.app-nav__item.active .app-nav__label { color: #2563EB; font-weight: 700; }

/* Floating info chips */
.float-chip {
  position: absolute;
  background: white;
  border-radius: var(--r-md);
  padding: 10px 14px;
  box-shadow: var(--s-lg);
  display: flex; align-items: center; gap: 10px;
  white-space: nowrap;
  animation: chipDrift 5s ease-in-out infinite;
}
.float-chip-1 { top: 8%; left: -130px; animation-delay: 0s; }
.float-chip-2 { bottom: 14%; right: -110px; animation-delay: -2.5s; }
@keyframes chipDrift {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-9px); }
}

.chip-icon-wrap {
  width: 32px; height: 32px;
  border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.chip-icon-wrap svg { width: 16px; height: 16px; }
.chip-label { font-size: .68rem; color: var(--c-muted); line-height: 1.2; }
.chip-value { font-size: .88rem; font-weight: 700; line-height: 1.2; }

/* -----------------------------------------------
   Stats Bar
----------------------------------------------- */
.stats-bar {
  background: var(--c-white);
  border-bottom: 1px solid var(--c-border);
  padding: 1.75rem 0;
}
.stats-bar__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}
.stat-item {
  display: flex; flex-direction: column;
  align-items: center; text-align: center;
  position: relative;
}
.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0; top: 10%; height: 80%;
  width: 1px;
  background: var(--c-border);
}
.stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--c-dark);
  line-height: 1;
  letter-spacing: -1px;
}
.stat-num .unit { font-size: 1.15rem; color: var(--c-primary); font-weight: 700; }
.stat-lbl {
  font-size: .8rem;
  color: var(--c-muted);
  margin-top: .3rem;
}

/* -----------------------------------------------
   Section Header
----------------------------------------------- */
.sec-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4rem;
}
.sec-tag {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: rgba(37,99,235,.08);
  color: var(--c-primary);
  font-size: .78rem;
  font-weight: 600;
  padding: .35rem 1rem;
  border-radius: var(--r-full);
  margin-bottom: .9rem;
  letter-spacing: .2px;
}
.sec-tag svg { flex-shrink: 0; }
.sec-title {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--c-dark);
  line-height: 1.25;
  letter-spacing: -.5px;
  margin-bottom: 1rem;
}
.sec-desc {
  font-size: 1rem;
  color: var(--c-muted);
  line-height: 1.75;
}

/* Fade-in animation */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .65s ease, transform .65s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* -----------------------------------------------
   Features Section
----------------------------------------------- */
.features {
  padding: var(--section-pad);
  background: var(--c-bg);
}
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.feature-card {
  background: var(--c-white);
  border-radius: var(--r-xl);
  padding: 2rem;
  border: 1.5px solid var(--c-border);
  transition: all var(--t-base);
  position: relative;
  overflow: hidden;
}
.feature-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--g-card);
  opacity: 0;
  transition: opacity var(--t-base);
  pointer-events: none;
}
.feature-card:hover {
  border-color: rgba(37,99,235,.3);
  transform: translateY(-5px);
  box-shadow: var(--s-lg);
}
.feature-card:hover::after { opacity: 1; }

.feat-icon {
  width: 58px; height: 58px;
  border-radius: var(--r-md);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.25rem;
  position: relative; z-index: 1;
}
.feat-icon svg { width: 28px; height: 28px; }

.ic-blue   { background: linear-gradient(135deg, #DBEAFE, #BFDBFE); }
.ic-purple { background: linear-gradient(135deg, #EDE9FE, #DDD6FE); }
.ic-green  { background: linear-gradient(135deg, #DCFCE7, #BBF7D0); }
.ic-orange { background: linear-gradient(135deg, #FEF3C7, #FDE68A); }
.ic-cyan   { background: linear-gradient(135deg, #CFFAFE, #A5F3FC); }
.ic-rose   { background: linear-gradient(135deg, #FFE4E6, #FECDD3); }

.feat-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-dark);
  margin-bottom: .5rem;
  position: relative; z-index: 1;
}
.feat-desc {
  font-size: .88rem;
  color: var(--c-muted);
  line-height: 1.72;
  position: relative; z-index: 1;
}

/* -----------------------------------------------
   Analysis Section
----------------------------------------------- */
.analysis {
  padding: var(--section-pad);
  background: var(--c-white);
}
.analysis__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}
.analysis-tabs { display: flex; flex-direction: column; gap: .75rem; }
.analysis-tab {
  display: flex; align-items: center; gap: 1rem;
  padding: 1rem 1.25rem;
  border-radius: var(--r-lg);
  border: 1.5px solid var(--c-border);
  cursor: pointer;
  transition: all var(--t-base);
  background: var(--c-white);
}
.analysis-tab:hover,
.analysis-tab.active {
  border-color: var(--c-primary);
  background: linear-gradient(135deg, rgba(37,99,235,.04), rgba(124,58,237,.03));
  box-shadow: var(--s-primary);
}
.tab-icon {
  width: 46px; height: 46px;
  border-radius: 13px;
  background: var(--c-bg);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: all var(--t-base);
}
.tab-icon svg { width: 22px; height: 22px; transition: color var(--t-base); }
.analysis-tab:hover .tab-icon,
.analysis-tab.active .tab-icon {
  background: var(--g-primary);
}
.analysis-tab:hover .tab-icon svg,
.analysis-tab.active .tab-icon svg {
  color: white !important;
  stroke: white !important;
}
.tab-body h4 {
  font-size: .95rem;
  font-weight: 700;
  color: var(--c-dark);
  margin-bottom: .2rem;
}
.tab-body p {
  font-size: .83rem;
  color: var(--c-muted);
  line-height: 1.5;
}

/* Analysis phone mockup - slightly smaller */
.analysis-phone {
  display: flex; justify-content: center;
  position: sticky; top: 6rem;
}
.analysis-phone .phone-frame {
  width: 260px; height: 540px;
  border-radius: 44px;
}
.analysis-phone .phone-screen { border-radius: 36px; }
.analysis-phone .app-header-bar { padding-top: 30px; }

/* -----------------------------------------------
   VIP Section
----------------------------------------------- */
.vip {
  padding: var(--section-pad);
  background: var(--c-bg); /* Use light background instead of blending into white without contrast */
  position: relative;
  overflow: hidden;
}
.vip__deco { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.vip-deco-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .5;
}
.vip-deco-blob-1 { width: 600px; height: 600px; top: -150px; right: -100px; background: rgba(37,99,235,.08); }
.vip-deco-blob-2 { width: 500px; height: 500px; bottom: -200px; left: 10%; background: rgba(124,58,237,.06); }

.vip__inner { position: relative; z-index: 1; }

.vip .sec-tag {
  background: rgba(245,158,11,.14);
  color: #D97706;
  border: 1px solid rgba(245,158,11,.28);
}
.vip .sec-title { color: var(--c-dark); }
.vip .sec-desc  { color: var(--c-muted); }

.vip-type-tabs {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 4rem;
}
.vip-type-tab {
  padding: .6rem 1.6rem;
  border-radius: var(--r-full);
  font-size: .95rem;
  font-weight: 600;
  background: rgba(15,23,42,.03);
  color: var(--c-muted);
  border: 1px solid rgba(15,23,42,.05);
  cursor: pointer;
  transition: all var(--t-base);
}
.vip-type-tab.active {
  background: var(--c-white);
  color: var(--c-primary);
  box-shadow: var(--s-sm);
  border-color: transparent;
}

.vip-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: center;
}

.vip-card {
  background: var(--c-white);
  border: 1px solid rgba(15,23,42,.04);
  border-radius: var(--r-xl);
  padding: 3rem 2rem;
  box-shadow: var(--s-sm);
  position: relative;
  overflow: hidden;
  transition: transform var(--t-base), box-shadow var(--t-base);
}
.vip-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--s-lg);
}
.vip-card.featured {
  background: var(--g-card);
  border: 2px solid var(--c-accent-gold);
  transform: scale(1.04);
  padding: 3.5rem 2.5rem;
  box-shadow: var(--s-gold);
}
.vip-card.featured:hover { transform: scale(1.04) translateY(-8px); }

.vip-card__badge {
  position: absolute;
  top: 0; left: 50%;
  transform: translate(-50%, -50%);
  background: var(--g-gold);
  color: white;
  padding: .4rem 1.2rem;
  border-radius: var(--r-full);
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: 1px;
  box-shadow: 0 4px 12px rgba(245,158,11,.3);
}

.vip-card__icon {
  width: 50px; height: 50px;
  border-radius: var(--r-md);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.1rem;
}
.vip-card__icon svg { width: 26px; height: 26px; }

.vip-card__name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--c-dark);
  margin-bottom: .5rem;
}
.vip-card.featured .vip-card__name { color: var(--c-accent-gold); }

.vip-card__desc {
  font-size: .9rem;
  color: var(--c-muted);
  margin-bottom: 2rem;
  min-height: 2.7rem;
}

.vip-period-tabs {
  display: inline-flex;
  background: rgba(15,23,42,.03);
  padding: 4px;
  border-radius: var(--r-md);
  margin-bottom: 2rem;
}
.vip-period-tab {
  padding: .4rem 1rem;
  font-size: .8rem;
  font-weight: 600;
  color: var(--c-muted);
  border-radius: 10px;
  cursor: pointer;
  transition: all var(--t-fast);
}
.vip-period-tab.active {
  background: var(--c-white);
  color: var(--c-dark);
  box-shadow: var(--s-sm);
}

.vip-price {
  display: flex;
  align-items: baseline;
  gap: .3rem;
  margin-bottom: 2.5rem;
}
.vip-price__main {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--c-dark);
  letter-spacing: -1px;
  line-height: 1;
}
.vip-price__main .cur {
  font-size: 1.2rem;
  font-weight: 600;
  vertical-align: top;
  margin-top: 5px;
  display: inline-block;
  color: var(--c-muted);
}
.vip-price__period {
  font-size: .78rem;
  color: var(--c-muted);
  margin-top: .3rem;
}

.vip-features { display: flex; flex-direction: column; gap: .55rem; margin-bottom: 1.5rem; }
.vip-feature {
  display: flex; align-items: center; gap: .6rem;
  font-size: .84rem;
  color: var(--c-dark-2);
}
.check-icon { width: 16px; height: 16px; flex-shrink: 0; color: #10B981; }
.dim { color: var(--c-muted); }
.dim .check-icon { color: rgba(15,23,42,.2); }

.btn-vip {
  display: block;
  width: 100%; text-align: center;
  padding: .85rem;
  border-radius: var(--r-md);
  font-size: .88rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid rgba(15,23,42,.1);
  background: rgba(15,23,42,.04);
  color: var(--c-dark);
  transition: all var(--t-base);
}
.btn-vip:hover { background: rgba(15,23,42,.08); }
.vip-card.featured .btn-vip {
  background: var(--g-gold);
  border-color: transparent;
  box-shadow: var(--s-gold);
}
.vip-card.featured .btn-vip:hover { filter: brightness(1.08); transform: translateY(-1px); }

/* -----------------------------------------------
   Download Section
----------------------------------------------- */
.download {
  padding: var(--section-pad);
  background: var(--c-white);
}
.download__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
}

.dl-stores { display: flex; flex-direction: column; gap: 1rem; margin-top: 2.25rem; }
.store-btn {
  display: flex; align-items: center; gap: 1rem;
  padding: .9rem 1.4rem;
  background: var(--c-bg);
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-lg);
  cursor: pointer;
  transition: all var(--t-base);
}
.store-btn:hover {
  border-color: var(--c-primary);
  background: var(--c-white);
  box-shadow: var(--s-primary);
  transform: translateY(-2px);
}
.store-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.store-icon svg { width: 24px; height: 24px; }
.store-text { flex: 1; }
.store-text .sub  { display: block; font-size: .7rem; color: var(--c-muted); }
.store-text .name { display: block; font-size: .95rem; font-weight: 700; color: var(--c-dark); }
.store-arrow { color: var(--c-border); flex-shrink: 0; }

/* QR side */
.qr-side {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}
.qr-frame {
  width: 226px; height: 226px;
  background: var(--c-white);
  border-radius: var(--r-xl);
  box-shadow: var(--s-lg);
  border: 1px solid var(--c-border);
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
}
.qr-frame svg { width: 100%; height: 100%; }
.qr-note {
  text-align: center;
  font-size: .82rem;
  color: var(--c-muted);
  line-height: 1.6;
}
.qr-note strong {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-dark);
  margin-bottom: .25rem;
}

/* -----------------------------------------------
   Footer
----------------------------------------------- */
.footer {
  background: var(--c-dark);
  padding: 4.5rem 0 2rem;
}
.footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}
.footer-brand__logo {
  display: flex; align-items: center; gap: .6rem;
  margin-bottom: .9rem;
}
.footer-brand__name { font-size: 1.2rem; font-weight: 700; color: white; }
.footer-brand__desc {
  font-size: .83rem;
  color: rgba(255,255,255,.42);
  line-height: 1.7;
  max-width: 270px;
}
.footer-col__title {
  font-size: .88rem;
  font-weight: 600;
  color: white;
  margin-bottom: 1rem;
}
.footer-links {
  display: flex; flex-direction: column; gap: .55rem;
}
.footer-links a {
  font-size: .83rem;
  color: rgba(255,255,255,.45);
  transition: color var(--t-fast);
}
.footer-links a:hover { color: white; }

.footer__divider {
  height: 1px;
  background: rgba(255,255,255,.07);
  margin-bottom: 2rem;
}
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .8rem;
  color: rgba(255,255,255,.35);
}
.footer__bottom-links { display: flex; gap: 1.5rem; }
.footer__bottom-links a {
  color: rgba(255,255,255,.35);
  transition: color var(--t-fast);
}
.footer__bottom-links a:hover { color: rgba(255,255,255,.75); }

/* -----------------------------------------------
   Scrollbar
----------------------------------------------- */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--c-bg); }
::-webkit-scrollbar-thumb { background: var(--c-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--c-muted); }

/* -----------------------------------------------
   Responsive
----------------------------------------------- */
@media (max-width: 1080px) {
  .hero__title  { font-size: 3rem; }
  .features__grid { grid-template-columns: repeat(2, 1fr); }
  .analysis__grid { grid-template-columns: 1fr; }
  .analysis-phone { display: none; }
  .footer__top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .navbar__links { display: none; }
  .hero__inner { grid-template-columns: 1fr; text-align: center; }
  .hero__visual { display: none; }
  .hero__title  { font-size: 2.4rem; }
  .hero__desc   { margin: 0 auto 2rem; }
  .hero__actions { align-items: center; }
  .dl-buttons   { justify-content: center; }
  .stats-bar__inner { grid-template-columns: repeat(2, 1fr); }
  .features__grid { grid-template-columns: 1fr; }
  .sec-title { font-size: 2rem; }
  .vip-cards { grid-template-columns: 1fr; }
  .vip-card.featured { transform: none; }
  .download__grid { grid-template-columns: 1fr; text-align: center; }
  .footer__top { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; gap: .9rem; text-align: center; }
}

@media (max-width: 480px) {
  .hero__title { font-size: 2rem; letter-spacing: -.5px; }
  .dl-buttons  { flex-direction: column; }
  .stat-num    { font-size: 1.65rem; }
  .sec-title   { font-size: 1.75rem; }
}