:root {
  --brand: #630ed4;
  --brand-dark: #530ab2;
  --brand-soft: #eaddff;
  --brand-pale: #eff4ff;
  --ink: #121c2a;
  --muted: #4a4455;
  --line: rgba(99, 14, 212, 0.1);
  --footer: #27313f;
  --danger: #ef4444;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #fff;
}

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

button {
  border: 0;
  font: inherit;
}

.icon {
  fill: none;
  flex: 0 0 auto;
  height: 24px;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
  width: 24px;
}

.filled-icon {
  color: currentColor;
}

.small-icon {
  height: 18px;
  width: 18px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid #f2eef8;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(18px);
}

.nav-shell {
  align-items: center;
  display: flex;
  height: 80px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1280px;
  padding: 0 48px;
  width: 100%;
}

.brand,
.footer-logo {
  align-items: center;
  color: var(--brand);
  display: inline-flex;
  font-size: 22px;
  font-weight: 800;
  gap: 8px;
  letter-spacing: -0.01em;
}

.laoliu-mark {
  align-items: center;
  background: var(--brand);
  border-radius: 10px;
  box-shadow: 0 12px 28px rgba(99, 14, 212, 0.18);
  color: #fff;
  display: inline-flex;
  font-size: 17px;
  font-weight: 900;
  height: 38px;
  justify-content: center;
  letter-spacing: -0.03em;
  line-height: 1;
  width: 38px;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a,
.footer-grid a {
  color: #5f6673;
  font-size: 14px;
  font-weight: 600;
  transition: color 0.2s ease;
}

.nav-links a:hover,
.footer-grid a:hover,
.continue-link:hover {
  color: var(--brand);
}

.nav-actions {
  align-items: center;
  display: flex;
  gap: 12px;
}

.language-button {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 999px;
  color: #5f6673;
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
  padding: 6px 12px;
}

.icon-link,
.user-button {
  align-items: center;
  border-radius: 999px;
  color: #5f6673;
  display: grid;
  height: 40px;
  justify-items: center;
  position: relative;
  transition: 0.2s ease;
  width: 40px;
}

.icon-link:hover,
.user-button:hover {
  background: #f8f9ff;
  color: var(--brand);
}

.cart-badge {
  align-items: center;
  background: var(--brand);
  border-radius: 99px;
  color: #fff;
  display: flex;
  font-size: 10px;
  font-weight: 800;
  height: 17px;
  justify-content: center;
  min-width: 17px;
  padding: 0 5px;
  position: absolute;
  right: 0;
  top: 3px;
}

.user-button svg,
.socials svg {
  fill: none;
  height: 18px;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
  width: 18px;
}

.order-button {
  background: var(--brand);
  border-radius: 999px;
  box-shadow: 0 8px 18px rgba(99, 14, 212, 0.18);
  color: #fff;
  font-size: 14px;
  font-weight: 800;
  margin-left: 4px;
  padding: 10px 24px;
  transition: 0.2s ease;
}

.order-button:hover,
.checkout-button:hover {
  background: var(--brand-dark);
}

.cart-page {
  background-color: #f8f9ff;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(99, 14, 212, 0.09) 1px, transparent 0),
    radial-gradient(circle at 12% 40%, rgba(124, 58, 237, 0.07), transparent 27%),
    radial-gradient(circle at 82% 16%, rgba(99, 14, 212, 0.12), transparent 28%);
  background-size: 24px 24px, auto, auto;
  min-height: calc(100vh - 80px);
  overflow: hidden;
  position: relative;
}

.glow-layer {
  background:
    radial-gradient(circle at 80% 10%, rgba(99, 14, 212, 0.16), transparent 30%),
    radial-gradient(circle at 10% 92%, rgba(99, 14, 212, 0.08), transparent 30%);
  inset: 0;
  pointer-events: none;
  position: absolute;
}

.page-shell {
  margin: 0 auto;
  max-width: 1280px;
  padding: 64px 48px 92px;
  position: relative;
  z-index: 1;
}

.page-title {
  margin-bottom: 40px;
}

.page-title p {
  color: var(--brand);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.18em;
  margin: 0 0 12px;
  text-transform: uppercase;
}

.page-title h1 {
  font-size: clamp(40px, 5vw, 48px);
  letter-spacing: -0.035em;
  line-height: 1.05;
  margin: 0;
}

.cart-layout {
  align-items: start;
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 2fr) minmax(330px, 1fr);
}

.cart-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.cart-card,
.summary-card {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  box-shadow: 0 8px 32px rgba(99, 14, 212, 0.04);
  backdrop-filter: blur(20px);
}

.cart-card {
  align-items: center;
  border-radius: 12px;
  display: flex;
  gap: 24px;
  justify-content: space-between;
  padding: 24px;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.cart-card:hover {
  box-shadow: 0 12px 40px rgba(99, 14, 212, 0.08);
  transform: translateY(-4px);
}

.product-copy {
  align-items: flex-start;
  display: flex;
  flex: 1;
  gap: 16px;
  min-width: 0;
}

.product-icon {
  align-items: center;
  background: var(--brand-pale);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--brand);
  display: grid;
  flex: 0 0 48px;
  height: 48px;
  justify-content: center;
  width: 48px;
}

.eyebrow {
  color: var(--brand);
  display: block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  margin-bottom: 4px;
  text-transform: uppercase;
}

.product-copy h2 {
  color: var(--ink);
  font-size: 22px;
  line-height: 1.2;
  margin: 0 0 4px;
}

.product-copy p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
}

.product-tools {
  align-items: center;
  display: flex;
  gap: 24px;
}

.quantity {
  align-items: center;
  background: var(--brand-pale);
  border: 1px solid rgba(204, 195, 216, 0.3);
  border-radius: 10px;
  display: flex;
  padding: 4px;
}

.quantity button {
  align-items: center;
  background: transparent;
  border-radius: 8px;
  color: var(--ink);
  cursor: pointer;
  display: grid;
  height: 32px;
  justify-content: center;
  transition: 0.18s ease;
  width: 32px;
}

.quantity button:hover:not(:disabled) {
  background: #fff;
  color: var(--brand);
}

.quantity button:disabled {
  cursor: not-allowed;
  opacity: 0.4;
}

.quantity span:not(.material) {
  color: var(--ink);
  font-size: 18px;
  font-weight: 800;
  min-width: 40px;
  text-align: center;
}

.price {
  min-width: 88px;
  text-align: right;
}

.price strong {
  color: var(--ink);
  display: block;
  font-size: 28px;
  line-height: 1;
}

.price small,
.total-row small {
  color: rgba(74, 68, 85, 0.72);
  display: block;
  font-size: 12px;
  margin-top: 6px;
}

.delete-button {
  align-items: center;
  background: transparent;
  border-radius: 999px;
  color: #7b7487;
  cursor: pointer;
  display: grid;
  height: 40px;
  justify-content: center;
  transition: 0.2s ease;
  width: 40px;
}

.delete-button:hover {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
}

.summary-card {
  border-radius: 12px;
  padding: 24px;
  position: sticky;
  top: 100px;
}

.summary-card h2 {
  font-size: 28px;
  line-height: 1.15;
  margin: 0 0 24px;
}

.summary-lines {
  border-bottom: 1px solid rgba(204, 195, 216, 0.3);
  display: grid;
  gap: 16px;
  margin-bottom: 24px;
  padding-bottom: 24px;
}

.summary-lines div,
.total-row {
  align-items: center;
  display: flex;
  justify-content: space-between;
}

.summary-lines span {
  color: var(--muted);
  font-size: 15px;
}

.summary-lines strong {
  color: var(--ink);
  font-size: 18px;
}

.summary-lines .free {
  color: var(--brand);
}

.total-row {
  align-items: flex-end;
  margin-bottom: 24px;
}

.total-row > span {
  color: var(--ink);
  font-size: 22px;
  font-weight: 750;
}

.total-row div {
  text-align: right;
}

.total-row strong {
  color: var(--brand);
  display: block;
  font-size: 40px;
  line-height: 1;
}

.payment-methods {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.payment-methods label {
  align-items: center;
  background: #fff;
  border: 1px solid rgba(99, 14, 212, 0.12);
  border-radius: 12px;
  color: var(--ink);
  cursor: pointer;
  display: flex;
  font-size: 14px;
  font-weight: 800;
  gap: 10px;
  padding: 12px 14px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.payment-methods label:has(input:checked) {
  border-color: rgba(99, 14, 212, 0.42);
  box-shadow: 0 10px 24px rgba(99, 14, 212, 0.08);
}

.payment-methods input {
  accent-color: var(--brand);
  height: 16px;
  width: 16px;
}

.checkout-button {
  align-items: center;
  background: var(--brand);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(99, 14, 212, 0.3);
  color: #fff;
  cursor: pointer;
  display: flex;
  font-size: 16px;
  font-weight: 800;
  gap: 8px;
  justify-content: center;
  padding: 16px 24px;
  transition: 0.25s ease;
  width: 100%;
}

.checkout-button:disabled {
  cursor: wait;
  opacity: 0.72;
}

.checkout-button:active {
  transform: scale(0.98);
}

.checkout-button .icon {
  height: 20px;
  width: 20px;
}

.continue-link {
  align-items: center;
  color: var(--muted);
  display: flex;
  font-size: 14px;
  font-weight: 700;
  gap: 8px;
  justify-content: center;
  margin-top: 16px;
  padding: 8px;
  transition: 0.2s ease;
}

.site-footer {
  background: var(--footer);
  color: #fff;
  padding: 80px 0;
}

.footer-shell {
  margin: 0 auto;
  max-width: 1280px;
  padding: 0 48px;
}

.footer-grid {
  display: grid;
  gap: 48px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 64px;
}

.footer-logo {
  color: #cea8ff;
  font-size: 20px;
  font-weight: 900;
}

.footer-brand p {
  color: #a8afba;
  font-size: 14px;
  line-height: 1.7;
  margin: 24px 0 0;
}

.footer-grid h3 {
  font-size: 16px;
  margin: 0 0 24px;
}

.footer-grid a {
  color: #a8afba;
  display: block;
  font-weight: 500;
  margin-top: 16px;
}

.footer-grid a:hover {
  color: #cea8ff;
}

.footer-bottom {
  align-items: center;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  padding-top: 32px;
}

.footer-bottom p {
  color: #78808d;
  font-size: 13px;
  margin: 0;
}

.socials {
  display: flex;
  gap: 24px;
}

.socials a {
  color: #a8afba;
  display: block;
  transition: color 0.2s ease;
}

.socials a:hover {
  color: #fff;
}

.socials svg {
  fill: currentColor;
  height: 20px;
  stroke: none;
  width: 20px;
}

.toast {
  background: rgba(18, 28, 42, 0.94);
  border-radius: 999px;
  bottom: 24px;
  box-shadow: 0 18px 40px rgba(18, 28, 42, 0.18);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  left: 50%;
  opacity: 0;
  padding: 12px 18px;
  pointer-events: none;
  position: fixed;
  transform: translate(-50%, 18px);
  transition: 0.24s ease;
  z-index: 50;
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

.cart-card.removing {
  opacity: 0;
  transform: translateX(16px) scale(0.98);
}

.home-page {
  background: #fff;
}

.home-shell {
  margin: 0 auto;
  max-width: 1280px;
  padding-left: 48px;
  padding-right: 48px;
}

.home-hero {
  background-color: #faf8ff;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(99, 14, 212, 0.055) 1px, transparent 0),
    radial-gradient(circle at 84% 14%, rgba(99, 14, 212, 0.12), transparent 34%);
  background-size: 26px 26px, auto;
  overflow: hidden;
  padding: 112px 0 118px;
}

.hero-grid {
  align-items: center;
  display: grid;
  gap: 72px;
  grid-template-columns: minmax(0, 0.95fr) minmax(380px, 1.05fr);
}

.section-heading p {
  color: var(--brand);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.18em;
  margin: 0 0 14px;
  text-transform: uppercase;
}

.hero-copy h1 {
  color: var(--ink);
  font-size: clamp(42px, 5vw, 58px);
  font-weight: 760;
  letter-spacing: -0.03em;
  line-height: 1.12;
  margin: 0;
  max-width: 620px;
}

.hero-copy h1 span {
  color: var(--brand);
  font-weight: 760;
}

.hero-lead {
  color: var(--muted);
  display: grid;
  gap: 7px;
  font-size: 16px;
  line-height: 1.85;
  margin: 24px 0 0;
  max-width: 520px;
}

.hero-lead p {
  margin: 0;
}

.product-bottom a {
  align-items: center;
  border-radius: 10px;
  display: inline-flex;
  font-weight: 800;
  justify-content: center;
  transition: 0.2s ease;
}

.hero-features {
  display: grid;
  gap: 14px 24px;
  grid-template-columns: repeat(2, minmax(0, 190px));
  margin-top: 30px;
}

.hero-features div {
  align-items: center;
  color: #5f6673;
  display: flex;
  font-size: 14px;
  font-weight: 650;
  gap: 9px;
}

.hero-features span {
  align-items: center;
  border: 1px solid rgba(99, 14, 212, 0.45);
  border-radius: 999px;
  color: var(--brand);
  display: inline-flex;
  flex: 0 0 auto;
  font-size: 12px;
  font-weight: 900;
  height: 20px;
  justify-content: center;
  width: 20px;
}

.sim-visual {
  align-items: center;
  display: flex;
  justify-content: center;
  min-height: 430px;
}

.sim-image-card {
  align-items: center;
  background: #fff;
  border: 1px solid rgba(99, 14, 212, 0.1);
  border-radius: 28px;
  box-shadow: 0 28px 70px rgba(38, 18, 84, 0.12);
  display: flex;
  aspect-ratio: 1.42;
  justify-content: center;
  overflow: hidden;
  padding: 13px;
  transform: rotate(-1.6deg);
  width: min(540px, 100%);
}

.sim-image-card img {
  display: block;
  border-radius: 20px;
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.home-section {
  padding: 96px 0;
}

.section-heading {
  margin-bottom: 46px;
}

.section-heading h2 {
  color: var(--ink);
  font-size: clamp(32px, 4vw, 42px);
  font-weight: 820;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin: 0;
}

.section-heading.centered {
  margin-left: auto;
  margin-right: auto;
  max-width: 780px;
  text-align: center;
}

.section-heading.centered p {
  color: var(--muted);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.8;
  margin: 16px auto 0;
  max-width: 760px;
  text-transform: none;
}

.section-heading.centered p:first-child {
  color: var(--brand);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.18em;
  margin-bottom: 12px;
  margin-top: 0;
  text-transform: uppercase;
}

.product-grid {
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0 auto;
  max-width: 900px;
}

.product-card {
  background: #fff;
  border: 1px solid #f0edf6;
  border-radius: 24px;
  box-shadow: 0 18px 46px rgba(24, 16, 44, 0.06);
  display: flex;
  flex-direction: column;
  min-height: 420px;
  padding: 34px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.product-card.featured {
  background: #fff;
  border-color: rgba(99, 14, 212, 0.2);
  box-shadow: 0 24px 58px rgba(99, 14, 212, 0.11);
}

.product-card:hover {
  border-color: rgba(99, 14, 212, 0.22);
  box-shadow: 0 26px 62px rgba(24, 16, 44, 0.09);
  transform: translateY(-2px);
}

.product-badge {
  background: transparent;
  border-radius: 0;
  color: var(--brand);
  display: block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.01em;
  line-height: 1.5;
  margin-bottom: 16px;
  padding: 0;
}

.product-card h3 {
  color: var(--ink);
  font-size: 30px;
  font-weight: 820;
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin: 0 0 14px;
}

.product-card p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.72;
  margin: 0;
  min-height: 52px;
}

.product-card ul {
  color: #4a4455;
  display: grid;
  gap: 16px;
  list-style: none;
  margin: 30px 0 34px;
  padding: 0;
}

.product-card li {
  align-items: flex-start;
  display: flex;
  font-size: 15px;
  gap: 12px;
  line-height: 1.45;
}

.product-card li::before {
  color: var(--brand);
  content: "✓";
  flex: 0 0 auto;
  font-weight: 900;
  margin-right: 0;
}

.product-bottom {
  align-items: end;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin-top: auto;
}

.product-bottom strong {
  color: var(--ink);
  display: block;
  font-size: 50px;
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1;
}

.product-bottom small {
  color: rgba(74, 68, 85, 0.72);
  display: block;
  font-size: 12px;
  margin-top: 7px;
}

.product-bottom a {
  background: var(--brand);
  border-radius: 10px;
  box-shadow: 0 10px 22px rgba(99, 14, 212, 0.18);
  color: #fff;
  font-size: 14px;
  padding: 12px 20px;
}

.product-bottom a:hover {
  background: var(--brand-dark);
}

.process-section {
  background: #faf8ff;
}

.process-grid {
  display: grid;
  gap: 28px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0 auto;
  max-width: 1040px;
  position: relative;
}

.process-grid::before {
  background: rgba(99, 14, 212, 0.12);
  content: "";
  height: 1px;
  left: 10%;
  position: absolute;
  right: 10%;
  top: 30px;
}

.faq-list details {
  background: #fff;
  border: 1px solid rgba(99, 14, 212, 0.1);
  border-radius: 18px;
  box-shadow: 0 14px 36px rgba(99, 14, 212, 0.035);
  padding: 24px;
}

.process-grid div {
  position: relative;
  text-align: center;
  z-index: 1;
}

.process-grid span {
  align-items: center;
  background: #fff;
  border: 1px solid rgba(99, 14, 212, 0.12);
  border-radius: 18px;
  box-shadow: 0 12px 30px rgba(99, 14, 212, 0.08);
  color: var(--brand);
  display: inline-flex;
  font-size: 15px;
  font-weight: 900;
  height: 62px;
  justify-content: center;
  margin-bottom: 22px;
  width: 62px;
}

.process-grid h3 {
  font-size: 18px;
  margin: 0 0 8px;
}

.process-grid p,
.faq-list p {
  color: var(--muted);
  line-height: 1.75;
  margin: 0;
}

.faq-section {
  background: #eff4ff;
  border-top: 1px solid #edf0fb;
  border-radius: 0 0 48px 48px;
}

.faq-list {
  display: grid;
  gap: 16px;
  margin: 0 auto;
  max-width: 840px;
}

.faq-list summary {
  color: var(--ink);
  cursor: pointer;
  font-size: 19px;
  font-weight: 760;
  list-style: none;
  position: relative;
  padding-right: 42px;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  color: var(--brand);
  content: "+";
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
  position: absolute;
  right: 0;
  top: 0;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list p {
  font-size: 15px;
  margin-top: 18px;
}

.policy-page {
  background: #faf8ff;
  min-height: calc(100vh - 80px);
  padding: 72px 24px;
}

.policy-shell {
  background: #fff;
  border: 1px solid #eee8f8;
  border-radius: 24px;
  box-shadow: 0 20px 50px rgba(24, 16, 44, 0.06);
  margin: 0 auto;
  max-width: 820px;
  padding: 42px;
}

.policy-kicker {
  color: var(--brand);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.16em;
  margin: 0 0 12px;
  text-transform: uppercase;
}

.policy-shell h1 {
  color: var(--ink);
  font-size: clamp(34px, 5vw, 46px);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 0 0 24px;
}

.policy-shell p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
  margin: 0 0 16px;
}

.policy-shell a {
  color: var(--brand);
  display: inline-flex;
  font-weight: 800;
  margin-top: 14px;
}

@media (max-width: 960px) {
  .nav-links {
    display: none;
  }

  .hero-grid,
  .product-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }

  .sim-visual {
    min-height: 360px;
  }

  .sim-image-card {
    width: min(500px, 100%);
  }

  .process-grid::before {
    display: none;
  }

  .cart-layout {
    grid-template-columns: 1fr;
  }

  .summary-card {
    position: static;
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .nav-shell,
  .page-shell,
  .footer-shell,
  .home-shell {
    padding-left: 20px;
    padding-right: 20px;
  }

  .nav-shell {
    height: 72px;
  }

  .brand {
    font-size: 21px;
  }

  .order-button {
    display: none;
  }

  .user-button {
    display: none;
  }

  .page-shell {
    padding-top: 48px;
  }

  .home-hero {
    padding: 56px 0;
  }

  .home-section {
    padding: 60px 0;
  }

  .cart-card {
    align-items: stretch;
    flex-direction: column;
  }

  .product-tools {
    justify-content: space-between;
    width: 100%;
  }

  .footer-grid,
  .footer-bottom {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    gap: 24px;
  }
}

@media (max-width: 430px) {
  .language-button {
    display: none;
  }

  .product-tools {
    gap: 12px;
  }

  .price {
    min-width: 72px;
  }

  .price strong {
    font-size: 24px;
  }
}