:root {
  color-scheme: light dark;
  --white: #fff;
  --black: #000;
  --black-soft: rgba(0, 0, 0, 0.64);
  --black-faint: rgba(0, 0, 0, 0.12);
  --black-hairline: rgba(0, 0, 0, 0.08);
  --logo-filter: none;
  --sale: #c40000;
  --radius: 0;
  font-family:
    "Microsoft YaHei",
    "PingFang SC",
    "Helvetica Neue",
    Arial,
    sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--black);
}

@media (prefers-color-scheme: dark) {
  :root {
    --white: #000;
    --black: #fff;
    --black-soft: rgba(255, 255, 255, 0.68);
    --black-faint: rgba(255, 255, 255, 0.18);
    --black-hairline: rgba(255, 255, 255, 0.12);
    --logo-filter: invert(1);
    --sale: #ff4545;
  }
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  border: 0;
}

.site-header,
.shop-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 86px;
  padding: 22px clamp(20px, 4vw, 64px);
  background: var(--white);
  background: color-mix(in srgb, var(--white) 92%, transparent);
  border-bottom: 1px solid var(--black-hairline);
  backdrop-filter: blur(16px);
}

.logo-button {
  display: inline-flex;
  align-items: center;
  width: 116px;
  padding: 0;
  background: transparent;
  cursor: pointer;
}

.logo-button img {
  display: block;
  width: 100%;
  height: auto;
  filter: var(--logo-filter);
}

.header-actions {
  display: flex;
  gap: clamp(14px, 3vw, 28px);
  align-items: center;
}

.text-link,
.remove-btn {
  background: transparent;
  color: var(--black);
  cursor: pointer;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.text-link {
  padding: 10px 0;
  border-bottom: 1px solid currentColor;
}

.remove-btn {
  padding: 0;
  color: var(--black-soft);
  letter-spacing: 0.1em;
}

.home-page,
.login-page,
.shop-page {
  min-height: 100vh;
  background: var(--white);
}

.cloud-error {
  margin: 18px clamp(20px, 4vw, 64px) 0;
  padding: 14px 18px;
  border: 1px solid var(--black);
  background: var(--white);
  color: var(--black);
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: 0.04em;
}

.home-hero {
  display: grid;
  min-height: calc(100vh - 164px);
  align-content: center;
  justify-items: center;
  padding: clamp(52px, 10vw, 132px) clamp(22px, 7vw, 110px);
  text-align: center;
}

.kicker {
  margin: 0;
  color: var(--black-soft);
  font-size: 11px;
  letter-spacing: 0.22em;
  line-height: 1.5;
  text-transform: uppercase;
}

.brand-copy {
  display: grid;
  gap: 22px;
  width: min(920px, 100%);
  margin: 0 auto;
  text-align: left;
}

.brand-copy p {
  margin: 0;
  font-size: clamp(16px, 1.35vw, 21px);
  font-weight: 300;
  line-height: 2;
}

.home-poster {
  display: grid;
  gap: 18px;
  width: min(680px, 92vw);
  margin: clamp(34px, 6vw, 72px) auto;
  -webkit-touch-callout: none;
  user-select: none;
}

.home-poster img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  pointer-events: none;
  -webkit-user-drag: none;
  user-select: none;
}

.home-poster figcaption {
  display: grid;
  gap: 8px;
  color: var(--black-soft);
  font-size: 12px;
  letter-spacing: 0.14em;
  line-height: 1.7;
  text-align: center;
  text-transform: uppercase;
}

.home-poster figcaption strong {
  color: var(--black);
  font-weight: 400;
}

.home-carousel {
  position: relative;
  width: min(1080px, 100%);
  aspect-ratio: 16 / 9;
  margin-top: clamp(42px, 7vw, 86px);
  overflow: hidden;
  background: var(--white);
  -webkit-touch-callout: none;
  user-select: none;
}

.home-carousel-slide {
  position: absolute;
  inset: 0;
  display: grid;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.42s ease;
}

.home-carousel-slide.active {
  opacity: 1;
  pointer-events: auto;
}

.home-carousel-slide img {
  grid-area: 1 / 1;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  -webkit-user-drag: none;
  user-select: none;
}

.home-carousel-copy {
  grid-area: 1 / 1;
  align-self: end;
  width: min(620px, 84%);
  padding: clamp(22px, 4vw, 56px);
  color: var(--white);
  mix-blend-mode: difference;
  text-align: left;
}

.home-carousel-copy h2 {
  margin: 0;
  font-size: clamp(28px, 5.6vw, 82px);
  font-weight: 300;
  line-height: 0.96;
}

.home-carousel-copy p {
  max-width: 520px;
  margin: 16px 0 0;
  font-size: clamp(13px, 1.25vw, 18px);
  line-height: 1.8;
}

.home-carousel-controls {
  position: absolute;
  right: clamp(12px, 2vw, 22px);
  bottom: clamp(12px, 2vw, 22px);
  display: inline-flex;
  gap: 10px;
  align-items: center;
  padding: 8px;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(12px);
}

.home-carousel-controls button {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--black);
  background: var(--white);
  color: var(--black);
  cursor: pointer;
  line-height: 1;
}

.home-carousel-controls div {
  display: inline-flex;
  gap: 7px;
  align-items: center;
}

.home-carousel-controls div button {
  width: 18px;
  height: 18px;
  border-color: var(--black-faint);
}

.home-carousel-controls div button.active {
  background: var(--black);
}

.home-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 0 clamp(20px, 4vw, 64px) 28px;
  color: var(--black-soft);
  font-size: 11px;
  letter-spacing: 0.18em;
}

.shop-footer {
  padding: 0 clamp(20px, 4vw, 64px) 34px;
  color: var(--black-soft);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-align: center;
}

.login-stage {
  display: grid;
  min-height: calc(100vh - 86px);
  align-content: center;
  justify-items: center;
  gap: 28px;
  place-items: center;
  padding: 48px 20px;
}

.login-panel {
  display: grid;
  width: min(420px, 100%);
  gap: 34px;
  padding: 0;
  background: var(--white);
}

.login-logo {
  width: 230px;
  margin: 0 auto 4px;
  filter: var(--logo-filter);
}

.login-note {
  margin: -20px 0 0;
  color: var(--black-soft);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-align: center;
}

.admin-entry {
  text-align: center;
}

.form-grid {
  display: grid;
  gap: 18px;
}

.field {
  display: grid;
  gap: 10px;
}

.field span,
.quantity-line > span {
  color: var(--black-soft);
  font-size: 12px;
  letter-spacing: 0.16em;
}

.compact-field {
  gap: 8px;
}

.input,
.select,
.textarea {
  width: 100%;
  min-height: 46px;
  padding: 11px 0;
  border: 0;
  border-bottom: 1px solid var(--black);
  border-radius: 0;
  background: var(--white);
  color: var(--black);
  outline: none;
}

.select {
  cursor: pointer;
}

.textarea {
  min-height: 148px;
  padding: 14px;
  border: 1px solid var(--black);
  resize: vertical;
  line-height: 1.7;
}

.input::placeholder,
.textarea::placeholder {
  color: var(--black-soft);
}

.primary-btn,
.secondary-btn,
.icon-btn,
.chip-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 1px solid var(--black);
  border-radius: 0;
  background: var(--white);
  color: var(--black);
  cursor: pointer;
  transition:
    background 0.16s ease,
    color 0.16s ease,
    opacity 0.16s ease;
}

.primary-btn,
.secondary-btn {
  width: 100%;
  padding: 0 18px;
  letter-spacing: 0.12em;
}

.primary-btn {
  background: var(--black);
  color: var(--white);
}

.primary-btn:hover,
.secondary-btn:hover,
.chip-btn.active,
.chip-btn:hover {
  background: var(--black);
  color: var(--white);
}

.primary-btn:disabled {
  cursor: default;
  opacity: 0.28;
}

.icon-btn {
  width: 38px;
  min-height: 38px;
  padding: 0;
  font-size: 18px;
}

.shop-tools {
  display: flex;
  gap: 22px;
  align-items: center;
  color: var(--black-soft);
  font-size: 13px;
}

.shop-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 400px);
  gap: clamp(28px, 5vw, 72px);
  width: min(1600px, 100%);
  margin: 0 auto;
  padding: clamp(32px, 5vw, 72px) clamp(20px, 4vw, 64px) 64px;
}

.catalog {
  min-width: 0;
}

.catalog-intro {
  display: grid;
  gap: 18px;
  margin-bottom: clamp(28px, 5vw, 58px);
}

.catalog-intro h1 {
  margin: 0;
  font-size: clamp(56px, 10vw, 140px);
  font-weight: 300;
  line-height: 0.9;
}

.filter-row {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(160px, 220px);
  gap: 24px;
  margin-bottom: 24px;
}

.category-strip {
  display: flex;
  gap: 10px;
  margin-bottom: 30px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.chip-btn {
  flex: 0 0 auto;
  min-height: 34px;
  padding: 0 14px;
  font-size: 12px;
  letter-spacing: 0.12em;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 2.8vw, 32px);
  width: min(1080px, 100%);
}

.product-card {
  display: grid;
  background: var(--white);
  border-bottom: 1px solid var(--black-hairline);
}

.product-media {
  position: relative;
  display: grid;
  aspect-ratio: 1 / 1;
  place-items: center;
  padding: clamp(12px, 2vw, 22px);
  background: var(--white);
  cursor: default;
  -webkit-touch-callout: none;
  user-select: none;
}

.product-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
  -webkit-user-drag: none;
  user-select: none;
}

.product-body {
  display: grid;
  gap: 12px;
  padding: 14px 0 22px;
}

.product-heading {
  display: grid;
  gap: 10px;
}

.product-heading span {
  color: var(--black-soft);
  font-size: 11px;
  letter-spacing: 0.18em;
}

.product-heading h2 {
  min-height: 44px;
  margin: 0;
  font-size: 17px;
  font-weight: 400;
  line-height: 1.25;
}

.product-price {
  display: flex;
  gap: 10px;
  align-items: center;
  min-height: 28px;
  font-size: 14px;
}

.product-price strong {
  font-weight: 400;
}

.product-price span {
  padding: 3px 7px;
  border: 0;
  border-bottom: 1px solid currentColor;
  font-size: 10px;
  letter-spacing: 0.14em;
}

.product-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.product-badges span {
  padding: 0;
  border: 0;
  border-bottom: 1px solid var(--black);
  font-size: 10px;
  letter-spacing: 0.12em;
}

.sale-price {
  color: var(--sale);
  font-weight: 800;
}

.sale-price strong,
.sale-price b {
  font-weight: 800;
}

.quantity-line {
  display: grid;
  gap: 8px;
}

.qty-row {
  display: grid;
  grid-template-columns: 38px minmax(48px, 1fr) 38px;
  gap: 0;
}

.qty-value {
  display: grid;
  min-height: 38px;
  place-items: center;
  border-top: 1px solid var(--black-hairline);
  border-bottom: 1px solid var(--black-hairline);
  font-weight: 500;
}

.product-card .select {
  border-bottom-color: var(--black-faint);
}

.product-card .icon-btn,
.product-card .secondary-btn {
  border-color: var(--black-faint);
}

.cart-panel {
  position: sticky;
  top: 112px;
  align-self: start;
  max-height: calc(100vh - 136px);
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
  border: 1px solid var(--black);
  background: var(--white);
}

.cart-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 22px;
  border-bottom: 1px solid var(--black);
}

.cart-header h2 {
  margin: 8px 0 0;
  font-size: 28px;
  font-weight: 300;
}

.cart-summary {
  padding: 14px 22px;
  border-bottom: 1px solid var(--black);
  color: var(--black-soft);
  font-size: 12px;
  letter-spacing: 0.16em;
}

.cart-address {
  padding: 16px 22px 18px;
  border-bottom: 1px solid var(--black-hairline);
}

.cart-list {
  display: grid;
  max-height: none;
  overflow: visible;
}

.cart-empty {
  padding: 34px 22px;
  color: var(--black-soft);
  text-align: center;
}

.cart-item {
  display: grid;
  gap: 12px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--black-hairline);
}

.cart-item-title {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  justify-content: space-between;
}

.cart-item-title strong {
  font-weight: 400;
  line-height: 1.4;
}

.cart-item-spec {
  color: var(--black-soft);
  font-size: 13px;
}

.cart-item-actions {
  display: grid;
  grid-template-columns: 38px minmax(60px, 96px) 38px;
}

.cart-footer {
  display: grid;
  gap: 14px;
  padding: 22px;
  border-top: 1px solid var(--black);
}

.cart-footer .primary-btn {
  font-size: 13px;
  letter-spacing: 0.04em;
}

.order-preview {
  width: 100%;
}

.note-textarea {
  min-height: 88px;
}

.copy-state {
  min-height: 20px;
  color: var(--black-soft);
  font-size: 13px;
}

.cart-float {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 25;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--black);
  background: var(--white);
  color: var(--black);
  cursor: pointer;
  font-size: 12px;
  letter-spacing: 0.12em;
}

.notice {
  padding: 24px;
  background: var(--white);
}

.news-page {
  min-height: 100vh;
  background: var(--white);
}

.news-layout {
  display: grid;
  gap: clamp(34px, 5vw, 72px);
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: clamp(48px, 8vw, 110px) clamp(20px, 4vw, 64px) 72px;
}

.news-intro {
  display: grid;
  gap: 18px;
}

.news-intro h1 {
  margin: 0;
  font-size: clamp(48px, 8vw, 112px);
  font-weight: 300;
  line-height: 0.95;
}

.news-list {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

.news-card {
  display: grid;
  grid-template-columns: minmax(260px, 42%) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
  padding-top: clamp(24px, 3vw, 42px);
  border-top: 1px solid var(--black-hairline);
}

.news-image {
  background: var(--white);
}

.news-image img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.news-copy {
  display: grid;
  gap: 16px;
}

.news-copy time {
  color: var(--black-soft);
  font-size: 12px;
  letter-spacing: 0.18em;
}

.news-copy h2 {
  margin: 0;
  font-size: clamp(24px, 3vw, 42px);
  font-weight: 300;
  line-height: 1.18;
}

.news-copy p,
.news-copy div {
  margin: 0;
  color: var(--black-soft);
  font-size: 15px;
  line-height: 1.9;
}

@media (max-width: 1040px) {
  .shop-layout {
    grid-template-columns: 1fr;
  }

  .cart-panel {
    position: static;
    max-height: none;
  }
}

@media (max-width: 680px) {
  .site-header,
  .shop-header {
    min-height: 72px;
    padding: 18px 20px;
  }

  .logo-button {
    width: 92px;
  }

  .home-hero {
    min-height: calc(100vh - 148px);
    padding: 42px 20px;
  }

  .header-actions {
    gap: 14px;
  }

  .brand-copy p {
    font-size: 15px;
    line-height: 1.9;
  }

  .home-footer {
    display: grid;
    padding: 0 20px 22px;
  }

  .shop-tools {
    gap: 14px;
  }

  .filter-row {
    grid-template-columns: 1fr;
    gap: 14px;
  }

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

  .news-card {
    grid-template-columns: 1fr;
  }

  .product-body {
    gap: 12px;
    padding: 12px;
  }

  .product-heading h2 {
    min-height: 42px;
    font-size: 15px;
  }
}