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

:root {
  --y2-red: #eb1b23;
  --y2-red-soft: #ffe5e7;
  --y2-red-soft2: #fff1f2;
  --y2-text-main: #151515;
  --y2-text-muted: #666a73;
  --y2-border-subtle: #e4e5eb;
  --y2-radius-lg: 24px;
  --y2-radius-md: 18px;
  --y2-radius-pill: 999px;
  --y2-shadow-soft: 0 18px 60px rgba(15, 18, 32, 0.08);
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, system-ui, -system-ui, sans-serif;
  color: var(--y2-text-main);
  background:
    radial-gradient(circle at 0 0, rgba(235, 27, 35, 0.08) 0, transparent 45%),
    radial-gradient(circle at 100% 0, rgba(235, 27, 35, 0.07) 0, transparent 55%),
    #ffffff;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

.y2-shell {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 18px;
}

.y2-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(228, 229, 235, 0.9);
}

.y2-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 0;
}

.y2-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.y2-brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 16px;
  padding: 4px;
  background: radial-gradient(circle at 15% 0, #ffffff 0, #ffd2d5 30%, #ffb6ba 50%, #eb1b23 100%);
  box-shadow: 0 10px 32px rgba(219, 40, 47, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
}

.y2-brand-mark img {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 12px;
}

.y2-brand-text {
  display: flex;
  flex-direction: column;
}

.y2-brand-name {
  font-weight: 600;
  letter-spacing: 0.02em;
}

.y2-brand-sub {
  font-size: 0.78rem;
  color: var(--y2-text-muted);
}

.y2-nav {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.9rem;
}

.y2-nav a {
  padding: 6px 12px;
  border-radius: var(--y2-radius-pill);
  border: 1px solid transparent;
  color: var(--y2-text-muted);
  transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.y2-nav a:hover {
  color: var(--y2-text-main);
  background: var(--y2-red-soft2);
  border-color: rgba(235, 27, 35, 0.26);
}

main {
  padding: 30px 0 40px;
}

.y2-section {
  padding: 18px 0;
}

.y2-hero {
  padding-top: 28px;
}

.y2-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 32px;
  align-items: center;
}

.y2-chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: var(--y2-radius-pill);
  border: 1px solid var(--y2-border-subtle);
  background: #ffffff;
  font-size: 0.8rem;
  color: var(--y2-text-muted);
  margin: 0 0 10px;
}

.y2-hero h1 {
  margin: 0 0 12px;
  font-size: clamp(2.1rem, 3vw, 2.7rem);
  line-height: 1.16;
}

.y2-lead {
  margin: 0 0 14px;
  font-size: 0.98rem;
  color: var(--y2-text-muted);
  max-width: 36rem;
  line-height: 1.7;
}

.y2-hero-list {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.9rem;
  color: var(--y2-text-muted);
}

.y2-hero-list li + li {
  margin-top: 4px;
}

.y2-hero-panel {
  display: flex;
  justify-content: center;
}

.y2-phone-frame {
  width: 260px;
  border-radius: 34px;
  padding: 10px;
  background: linear-gradient(150deg, #ffffff, #ffe5e7);
  box-shadow: var(--y2-shadow-soft);
  border: 1px solid rgba(228, 229, 235, 0.7);
}

.y2-phone-notch {
  width: 90px;
  height: 14px;
  border-radius: 999px;
  margin: 0 auto 10px;
  background: #f1f1f5;
}

.y2-phone-screen {
  border-radius: 26px;
  padding: 14px 14px 16px;
  background: radial-gradient(circle at 0 0, #fff6f7 0, #ffffff 50%, #f9fafb 100%);
  border: 1px solid var(--y2-border-subtle);
}

.y2-phone-caption {
  margin: 0 0 8px;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--y2-text-muted);
}

.y2-phone-list {
  list-style: none;
  margin: 0 0 8px;
  padding: 0;
}

.y2-phone-list li {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 5px 0;
  font-size: 0.86rem;
}

.y2-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #d4d5dd;
}

.y2-dot-red {
  background: var(--y2-red);
}

.y2-phone-label {
  color: var(--y2-text-main);
}

.y2-phone-tag {
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--y2-red-soft);
  color: #7a1518;
}

.y2-phone-tag--soft {
  background: #f3f4f8;
  color: var(--y2-text-muted);
}

.y2-phone-footnote {
  margin: 4px 0 0;
  font-size: 0.76rem;
  color: var(--y2-text-muted);
}

.y2-section-muted {
  background: linear-gradient(to bottom, #ffffff, #fff8f8);
}

.y2-section-head {
  margin-bottom: 16px;
}

.y2-section-head h2 {
  margin: 0 0 8px;
  font-size: 1.45rem;
}

.y2-section-head p {
  margin: 0;
  font-size: 0.96rem;
  color: var(--y2-text-muted);
  max-width: 40rem;
}

.y2-section-head--center {
  text-align: center;
  max-width: 520px;
  margin: 0 auto 16px;
}

.y2-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.y2-feature-card {
  background: #ffffff;
  border-radius: var(--y2-radius-md);
  padding: 16px 16px 18px;
  border: 1px solid var(--y2-border-subtle);
  box-shadow: var(--y2-shadow-soft);
}

.y2-feature-card h3 {
  margin: 0 0 6px;
  font-size: 1.02rem;
}

.y2-feature-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--y2-text-muted);
}

.y2-policy {
  padding-top: 26px;
}

.y2-policy-card {
  background: #ffffff;
  border-radius: var(--y2-radius-lg);
  padding: 22px 22px 24px;
  border: 1px solid var(--y2-border-subtle);
  box-shadow: 0 24px 70px rgba(15, 18, 32, 0.12);
}

.y2-policy-card h3 {
  margin-top: 14px;
  margin-bottom: 6px;
  font-size: 1.02rem;
}

.y2-policy-card h3:first-child {
  margin-top: 0;
}

.y2-policy-card p {
  margin: 0 0 10px;
  font-size: 0.94rem;
  color: #3a3e4a;
}

.y2-policy-card ul {
  margin: 0 0 10px 18px;
  padding: 0;
  font-size: 0.94rem;
  color: #3a3e4a;
}

.y2-policy-card li + li {
  margin-top: 4px;
}

.y2-policy-card a {
  color: var(--y2-red);
}

.y2-contact {
  padding-top: 26px;
}

.y2-contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.9fr);
  gap: 18px;
  align-items: flex-start;
}

.y2-form {
  background: #ffffff;
  border-radius: var(--y2-radius-lg);
  padding: 18px 18px 20px;
  border: 1px solid var(--y2-border-subtle);
  box-shadow: 0 24px 70px rgba(15, 18, 32, 0.12);
}

.y2-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
  font-size: 0.9rem;
}

.y2-field span {
  color: var(--y2-text-muted);
}

textarea,
input[type="text"],
input[type="email"] {
  font: inherit;
  padding: 9px 11px;
  border-radius: 12px;
  border: 1px solid var(--y2-border-subtle);
  background: #ffffff;
  color: var(--y2-text-main);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

textarea:focus,
input[type="text"]:focus,
input[type="email"]:focus {
  border-color: rgba(235, 27, 35, 0.6);
  box-shadow: 0 0 0 1px rgba(235, 27, 35, 0.18);
  background: #fffefe;
}

textarea {
  resize: vertical;
  min-height: 110px;
}

.y2-field-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.y2-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 22px;
  border-radius: var(--y2-radius-pill);
  border: none;
  background: linear-gradient(135deg, #ff626b, #eb1b23);
  color: #ffffff;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 18px 40px rgba(235, 27, 35, 0.35);
  transition: transform 0.1s ease, box-shadow 0.1s ease, filter 0.1s ease;
}

.y2-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 22px 46px rgba(235, 27, 35, 0.4);
  filter: brightness(1.03);
}

.y2-btn:active {
  transform: translateY(0);
  box-shadow: 0 14px 34px rgba(235, 27, 35, 0.35);
}

.y2-contact-side {
  font-size: 0.92rem;
  color: var(--y2-text-muted);
}

.y2-contact-side p {
  margin: 0 0 6px;
}

.y2-footer {
  border-top: 1px solid var(--y2-border-subtle);
  background: #fdfdfd;
  padding: 16px 0 20px;
}

.y2-footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  font-size: 0.86rem;
  color: var(--y2-text-muted);
}

.y2-footer-inner a {
  color: var(--y2-red);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Responsive */

@media (max-width: 900px) {
  .y2-hero-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .y2-hero-panel {
    order: -1;
  }
}

@media (max-width: 768px) {
  .y2-nav {
    display: none;
  }
  .y2-shell {
    padding-inline: 16px;
  }
  .y2-feature-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .y2-contact-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .y2-field-row {
    grid-template-columns: minmax(0, 1fr);
  }
  .y2-policy-card {
    padding-inline: 18px;
  }
}

@media (max-width: 480px) {
  .y2-brand-sub {
    display: none;
  }
  .y2-brand-mark {
    width: 34px;
    height: 34px;
  }
}