/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ===== Design Tokens ===== */
:root {
  --mint: #5BBA88;
  --mint-dark: #2E7D5B;
  --mint-light: #E8F5EE;
  --mint-pale: #F3FAF6;
  --paper: #FAF7F0;
  --paper-warm: #F5EFE0;
  --ink: #2B2B2B;
  --ink-soft: #5A5A5A;
  --ink-mute: #8A8A8A;
  --highlighter: #FFE066;
  --highlighter-soft: #FFF3B0;
  --coral: #F28B82;
  --sky: #7EC8E3;
  --radius: 16px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.08);
  --shadow-lg: 0 20px 60px rgba(46,125,91,0.15);
  --max-w: 1200px;
}

.display-font {
  font-family: 'ZCOOL KuaiLe', cursive, sans-serif;
  font-weight: normal;
  letter-spacing: 0.02em;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}

/* ===== Viewfinder Signature ===== */
.viewfinder {
  position: relative;
}
.viewfinder .vf-tl,
.viewfinder .vf-tr,
.viewfinder .vf-bl,
.viewfinder .vf-br {
  content: '';
  position: absolute;
  width: 24px;
  height: 24px;
  border-color: var(--mint);
  border-style: solid;
  border-width: 0;
  z-index: 2;
  pointer-events: none;
}
.vf-tl { top: -6px; left: -6px; border-top-width: 3px; border-left-width: 3px; border-top-left-radius: 8px; }
.vf-tr { top: -6px; right: -6px; border-top-width: 3px; border-right-width: 3px; border-top-right-radius: 8px; }
.vf-bl { bottom: -6px; left: -6px; border-bottom-width: 3px; border-left-width: 3px; border-bottom-left-radius: 8px; }
.vf-br { bottom: -6px; right: -6px; border-bottom-width: 3px; border-right-width: 3px; border-bottom-right-radius: 8px; }

/* ===== Highlight Text ===== */
.highlight {
  background: linear-gradient(180deg, transparent 55%, var(--highlighter) 55%);
  padding: 0 4px;
}

/* ===== Navigation ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 247, 240, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(91, 186, 136, 0.1);
  transition: box-shadow 0.3s ease;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: var(--shadow-sm);
}
.nav-brand-name {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.nav-brand-cn {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
}
.nav-brand-en {
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-soft);
  transition: color 0.2s;
  position: relative;
}
.nav-links a:hover {
  color: var(--mint-dark);
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--mint);
  transition: width 0.25s ease;
  border-radius: 2px;
}
.nav-links a:hover::after {
  width: 100%;
}
.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-login {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-soft);
  padding: 8px 16px;
  transition: color 0.2s;
}
.nav-login:hover { color: var(--mint-dark); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 999px;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--mint);
  color: #fff;
  box-shadow: 0 4px 16px rgba(91, 186, 136, 0.35);
}
.btn-primary:hover {
  background: var(--mint-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(46, 125, 91, 0.4);
}
.btn-outline {
  background: transparent;
  color: var(--mint-dark);
  border: 2px solid var(--mint);
}
.btn-outline:hover {
  background: var(--mint-light);
  transform: translateY(-2px);
}
.btn-lg {
  font-size: 17px;
  padding: 16px 36px;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 80px 0 100px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--mint-light) 0%, transparent 70%);
  z-index: 0;
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--mint-light);
  color: var(--mint-dark);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
}
.hero-eyebrow .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}
.hero-title {
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.15;
  color: var(--ink);
  margin-bottom: 20px;
  font-weight: 900;
}
.hero-title .display-font {
  font-size: 1.15em;
  color: var(--mint-dark);
  display: block;
  margin-top: 4px;
}
.hero-subtitle {
  font-size: 18px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin-bottom: 36px;
  max-width: 520px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.hero-stats {
  display: flex;
  gap: 40px;
  padding-top: 32px;
  border-top: 1px solid rgba(91, 186, 136, 0.15);
}
.stat-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--mint-dark);
  font-family: 'ZCOOL KuaiLe', cursive;
}
.stat-label {
  font-size: 13px;
  color: var(--ink-mute);
  margin-top: 2px;
}

/* Hero Visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 500px;
}
.phone-mockup {
  position: relative;
  width: 300px;
  height: 600px;
  background: #fff;
  border-radius: 44px;
  box-shadow: var(--shadow-lg);
  padding: 12px;
  z-index: 2;
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.phone-screen {
  width: 100%;
  height: 100%;
  border-radius: 32px;
  overflow: hidden;
  background: var(--mint-pale);
  position: relative;
}
.phone-notch {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 28px;
  background: #fff;
  border-bottom-left-radius: 16px;
  border-bottom-right-radius: 16px;
  z-index: 3;
}
.phone-content {
  padding: 44px 16px 16px;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.phone-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 4px;
}
.phone-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--mint-dark);
}
.phone-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--mint-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--mint-dark);
  font-size: 14px;
}

/* Chat bubbles in phone */
.chat-row { display: flex; gap: 8px; align-items: flex-end; }
.chat-row.user { justify-content: flex-end; }
.chat-bubble {
  max-width: 80%;
  padding: 10px 14px;
  border-radius: 18px;
  font-size: 13px;
  line-height: 1.5;
}
.chat-bubble.user {
  background: var(--mint);
  color: #fff;
  border-bottom-right-radius: 6px;
}
.chat-bubble.ai {
  background: #fff;
  color: var(--ink);
  border-bottom-left-radius: 6px;
  box-shadow: var(--shadow-sm);
}
.chat-math {
  font-family: 'Times New Roman', Georgia, serif;
  font-style: italic;
  font-size: 15px;
  margin-top: 4px;
}
.chat-steps {
  font-size: 12px;
  color: var(--ink-soft);
  margin-top: 6px;
}
.chat-steps ol {
  padding-left: 16px;
  list-style: decimal;
}
.chat-steps li { margin-bottom: 2px; }
.tip-label {
  color: var(--mint-dark);
  font-weight: 600;
}
.chat-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--mint-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--mint-dark);
  flex-shrink: 0;
}

.input-bar {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: #fff;
  border-radius: 24px;
  box-shadow: var(--shadow-sm);
}
.input-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--mint-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--mint-dark);
}
.input-text {
  flex: 1;
  font-size: 13px;
  color: var(--ink-mute);
}
.input-send {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--mint);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}

/* Floating cards around phone */
.float-card {
  position: absolute;
  background: #fff;
  border-radius: 14px;
  padding: 12px 16px;
  box-shadow: var(--shadow-md);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  min-width: 140px;
}
.float-card .icon-badge {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.fc-title {
  color: var(--ink);
  font-weight: 700;
  font-size: 13px;
}
.fc-desc {
  font-size: 11px;
  color: var(--ink-mute);
  font-weight: 400;
}
.float-card-1 {
  top: 60px;
  left: -20px;
  animation: floatCard1 5s ease-in-out infinite;
}
.float-card-1 .icon-badge { background: var(--highlighter-soft); color: #B8860B; }
.float-card-2 {
  bottom: 120px;
  right: -10px;
  animation: floatCard2 4.5s ease-in-out infinite;
}
.float-card-2 .icon-badge { background: var(--mint-light); color: var(--mint-dark); }
.float-card-3 {
  top: 240px;
  right: -30px;
  animation: floatCard1 5.5s ease-in-out infinite 0.5s;
}
.float-card-3 .icon-badge { background: #FDE2E2; color: var(--coral); }
@keyframes floatCard1 {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50% { transform: translateY(-10px) rotate(-2deg); }
}
@keyframes floatCard2 {
  0%, 100% { transform: translateY(0) rotate(2deg); }
  50% { transform: translateY(-8px) rotate(2deg); }
}

/* ===== Section Common ===== */
.section {
  padding: 100px 0;
}
.section-head {
  text-align: center;
  margin-bottom: 60px;
}
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--mint-dark);
  background: var(--mint-light);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.section-title {
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 12px;
  line-height: 1.3;
}
.section-desc {
  font-size: 17px;
  color: var(--ink-soft);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ===== Features ===== */
.features {
  background: #fff;
  position: relative;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-card {
  position: relative;
  background: var(--paper);
  border-radius: var(--radius);
  padding: 40px 32px;
  transition: all 0.35s ease;
  border: 1px solid rgba(91, 186, 136, 0.1);
}
.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--mint);
}
.feature-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  background: var(--mint-light);
  color: var(--mint-dark);
}
.feature-card:nth-child(2) .feature-icon {
  background: #FFF3B0;
  color: #B8860B;
}
.feature-card:nth-child(3) .feature-icon {
  background: #E2F0FA;
  color: #3A7CA5;
}
.feature-card:nth-child(4) .feature-icon {
  background: #FDE8E8;
  color: #C06060;
}
.feature-card:nth-child(5) .feature-icon {
  background: #F0E8FA;
  color: #7B5EA8;
}
.feature-card:nth-child(6) .feature-icon {
  background: #E8F5EE;
  color: var(--mint-dark);
}
.feature-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 12px;
}
.feature-desc {
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.7;
}

/* ===== How it works ===== */
.howitworks {
  background: var(--mint-pale);
}
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}
.step-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}
.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.step-num {
  font-family: 'ZCOOL KuaiLe', cursive;
  font-size: 64px;
  color: var(--mint-light);
  line-height: 1;
  position: absolute;
  top: 16px;
  right: 24px;
}
.step-icon {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  background: var(--mint-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  color: var(--mint-dark);
  position: relative;
  z-index: 1;
}
.step-card:nth-child(2) .step-icon { background: #FFF3B0; color: #B8860B; }
.step-card:nth-child(3) .step-icon { background: #FDE2E2; color: var(--coral); }
.step-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 10px;
}
.step-desc {
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.7;
}

/* ===== Scenarios ===== */
.scenarios {
  background: #fff;
}
.scenario-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.scenario-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  display: flex;
  align-items: flex-end;
  padding: 32px;
  color: #fff;
  transition: transform 0.35s ease;
}
.scenario-card:hover { transform: scale(1.02); }
.scenario-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.7) 100%);
  z-index: 1;
}
.scenario-art {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.scenario-svg {
  width: 100%;
  height: 100%;
}
.scenario-card-1 { background: linear-gradient(135deg, #FAF7F0 0%, #E8F5EE 100%); }
.scenario-card-1 .scenario-title,
.scenario-card-1 .scenario-desc { color: #2B2B2B; }
.scenario-card-1 .scenario-tag { background: rgba(46, 125, 91, 0.12); color: var(--mint-dark); }
.scenario-card-1::before { background: linear-gradient(180deg, transparent 50%, rgba(250, 247, 240, 0.9) 100%); }
.scenario-card-2 { background: linear-gradient(135deg, #2E7D5B 0%, #5BBA88 100%); }
.scenario-card-3 { background: linear-gradient(135deg, #F28B82 0%, #FFB347 100%); }
.scenario-card-4 { background: linear-gradient(135deg, #7EC8E3 0%, #5B8FB9 100%); }

.scenario-content {
  position: relative;
  z-index: 2;
}
.scenario-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 10px;
}
.scenario-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 6px;
  color: #fff;
}
.scenario-desc {
  font-size: 14px;
  opacity: 0.85;
  line-height: 1.6;
  color: #fff;
}

/* ===== Stats Band ===== */
.stats-band {
  background: var(--mint-dark);
  color: #fff;
  padding: 60px 0;
}
.stats-band-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}
.stat-big-num {
  font-size: 48px;
  font-weight: 800;
  font-family: 'ZCOOL KuaiLe', cursive;
  margin-bottom: 6px;
}
.stat-big-label {
  font-size: 15px;
  opacity: 0.8;
}

/* ===== Testimonials ===== */
.testimonials {
  background: var(--paper);
}
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}
.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.testimonial-quote {
  font-size: 48px;
  color: var(--mint-light);
  line-height: 0.8;
  margin-bottom: 12px;
  font-family: Georgia, serif;
  font-weight: bold;
}
.testimonial-text {
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.8;
  margin-bottom: 24px;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--mint-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: var(--mint-dark);
}
.testimonial-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}
.testimonial-role {
  font-size: 12px;
  color: var(--ink-mute);
}

/* ===== CTA Section ===== */
.cta-section {
  padding: 100px 0;
  background: #fff;
}
.cta-card {
  position: relative;
  background: linear-gradient(135deg, var(--mint-dark) 0%, var(--mint) 100%);
  border-radius: 32px;
  padding: 80px 60px;
  text-align: center;
  color: #fff;
  overflow: hidden;
}
.cta-card::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
}
.cta-card::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -80px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
}
.cta-inner {
  position: relative;
  z-index: 1;
}
.cta-title {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.3;
}
.cta-title .display-font {
  color: var(--highlighter);
}
.cta-desc {
  font-size: 17px;
  opacity: 0.9;
  margin-bottom: 36px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}
.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-light {
  background: #fff;
  color: var(--mint-dark);
}
.btn-light:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}
.btn-white-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.5);
}
.btn-white-outline:hover {
  background: rgba(255,255,255,0.15);
  transform: translateY(-2px);
  border-color: #fff;
}

/* ===== Footer ===== */
.footer {
  background: var(--ink);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.footer-logo {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  object-fit: cover;
}
.footer-brand-name {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.footer-brand-cn {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
}
.footer-brand-en {
  font-size: 12px;
  opacity: 0.6;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.footer-about {
  font-size: 14px;
  line-height: 1.7;
  opacity: 0.6;
  max-width: 320px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-col a {
  font-size: 14px;
  opacity: 0.6;
  transition: opacity 0.2s, color 0.2s;
}
.footer-col a:hover {
  opacity: 1;
  color: var(--mint);
}
.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  opacity: 0.5;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom a:hover {
  opacity: 1;
  color: var(--mint);
}
.footer-beian {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { min-height: auto; padding: 20px 0; }
  .feature-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .scenario-grid { grid-template-columns: 1fr; }
  .testimonial-grid { grid-template-columns: 1fr; }
  .stats-band-inner { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .nav-links { display: none; }
  .cta-card { padding: 50px 28px; }
}
@media (max-width: 600px) {
  .container { padding: 0 20px; }
  .section { padding: 64px 0; }
  .hero { padding: 48px 0 64px; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .stat-num { font-size: 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .stats-band-inner { grid-template-columns: repeat(2, 1fr); }
  .stat-big-num { font-size: 36px; }
  .float-card { display: none; }
  .nav-login { display: none; }
}