:root {
  --terracotta: #C75A3C;
  --terracotta-ink: #A9472F;
  --gold: #D89A3D;
  --sage: #577A64;
  --ivory: #FFF7ED;
  --cocoa: #3A2A25;
  --white: #FFFFFF;
  --line: rgba(199, 90, 60, 0.18);
  --soft-shadow: 0 18px 52px rgba(58, 42, 37, 0.09);
  --card-shadow: 0 12px 30px rgba(58, 42, 37, 0.08);
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  color: var(--cocoa);
  background: var(--white);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 4px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: var(--cocoa);
  line-height: 1.28;
}

.container {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.section {
  padding: 88px 0;
}

.site-header {
  position: relative;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 5px 22px rgba(58, 42, 37, 0.04);
}

.header-inner {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  flex: 0 1 345px;
}

.brand img {
  width: 345px;
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 15px;
  font-weight: 700;
}

.site-nav > a:not(.nav-cta) {
  position: relative;
}

.site-nav > a:not(.nav-cta)::after {
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 2px;
  content: "";
  background: var(--terracotta);
  transform: scaleX(0);
  transition: transform 180ms ease;
}

.site-nav > a:hover::after {
  transform: scaleX(1);
}

.nav-cta,
.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 0 23px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  line-height: 1.25;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.nav-cta,
.button-primary {
  color: var(--white);
  background: var(--terracotta-ink);
  box-shadow: 0 10px 24px rgba(199, 90, 60, 0.24);
}

.button-secondary {
  border-color: rgba(87, 122, 100, 0.42);
  color: var(--sage);
  background: var(--white);
}

.nav-cta:hover,
.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(58, 42, 37, 0.16);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 74px 0 82px;
  background:
    radial-gradient(circle at 12% 20%, rgba(216, 154, 61, 0.12), transparent 25%),
    linear-gradient(120deg, var(--ivory) 0%, #fffaf4 60%, var(--white) 100%);
}

.hero::before,
.hero::after {
  position: absolute;
  content: "";
  pointer-events: none;
}

.hero::before {
  top: -90px;
  right: -70px;
  width: 310px;
  height: 310px;
  border: 36px solid rgba(199, 90, 60, 0.07);
  border-radius: 44% 56% 62% 38%;
  transform: rotate(18deg);
}

.hero::after {
  bottom: -70px;
  left: 46%;
  width: 280px;
  height: 140px;
  border: 3px solid rgba(87, 122, 100, 0.12);
  border-radius: 50%;
  transform: rotate(-12deg);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.65fr);
  align-items: center;
  gap: 64px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  color: var(--sage);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.eyebrow::before {
  width: 24px;
  height: 2px;
  content: "";
  background: var(--gold);
}

.hero h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: clamp(38px, 5vw, 62px);
  letter-spacing: -0.045em;
}

.hero-lead {
  max-width: 680px;
  margin-bottom: 30px;
  color: rgba(58, 42, 37, 0.82);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 22px;
}

.hero-note {
  margin: 0;
  padding-left: 14px;
  border-left: 3px solid var(--gold);
  color: rgba(58, 42, 37, 0.76);
  font-size: 14px;
}

.hero-gift {
  position: relative;
  padding: 40px 36px 34px;
  overflow: hidden;
  border: 1px solid rgba(199, 90, 60, 0.20);
  border-radius: 28px;
  background: var(--white);
  box-shadow: var(--soft-shadow);
}

.hero-gift::before {
  position: absolute;
  top: -68px;
  right: -54px;
  width: 150px;
  height: 150px;
  border: 22px solid rgba(216, 154, 61, 0.13);
  border-radius: 50%;
  content: "";
}

.gift-kicker {
  display: inline-block;
  margin-bottom: 14px;
  padding: 5px 12px;
  border-radius: 999px;
  color: var(--terracotta-ink);
  background: var(--ivory);
  font-size: 13px;
  font-weight: 800;
}

.hero-gift h2 {
  margin-bottom: 14px;
  font-size: 27px;
}

.hero-gift p {
  color: rgba(58, 42, 37, 0.76);
}

.hero-gift ul {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.hero-gift li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.hero-gift li span {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 12px;
  color: var(--white);
  background: var(--sage);
  font-size: 13px;
}

.section-heading {
  max-width: 690px;
  margin-bottom: 38px;
}

.section-heading h2 {
  margin-bottom: 15px;
  font-size: clamp(30px, 4vw, 44px);
  letter-spacing: -0.035em;
}

.section-heading p {
  margin-bottom: 0;
  color: rgba(58, 42, 37, 0.74);
}

.heading-row {
  max-width: none;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
}

.heading-row > div {
  max-width: 720px;
}

.centered {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.centered .eyebrow {
  justify-content: center;
}

.text-link,
.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--terracotta-ink);
  font-weight: 800;
  white-space: nowrap;
}

.products-section {
  position: relative;
  background: var(--white);
}

.products-section::before {
  position: absolute;
  top: 30px;
  left: 0;
  width: 90px;
  height: 180px;
  border: solid rgba(87, 122, 100, 0.09);
  border-width: 2px 2px 2px 0;
  border-radius: 0 90px 90px 0;
  content: "";
  pointer-events: none;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}

.product-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid rgba(199, 90, 60, 0.16);
  border-radius: 22px;
  background: var(--white);
  box-shadow: var(--card-shadow);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.product-card:hover {
  border-color: rgba(199, 90, 60, 0.42);
  box-shadow: 0 18px 42px rgba(58, 42, 37, 0.13);
  transform: translateY(-5px);
}

.product-image {
  display: grid;
  aspect-ratio: 4 / 3;
  place-items: center;
  padding: 14px;
  overflow: hidden;
  border-bottom: 1px solid rgba(199, 90, 60, 0.12);
  background: linear-gradient(145deg, var(--ivory), var(--white));
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.product-info {
  display: flex;
  min-width: 0;
  flex: 1;
  flex-direction: column;
  align-items: flex-start;
  padding: 18px;
}

.product-info small {
  color: var(--cocoa);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.product-name {
  width: 100%;
  margin: 7px 0 13px;
  overflow-wrap: anywhere;
  color: var(--cocoa);
  font-size: 16px;
  line-height: 1.45;
}

.product-price {
  margin-top: auto;
  color: var(--cocoa);
  font-size: 15px;
  font-weight: 900;
}

.product-price::before {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--terracotta);
  content: "";
  vertical-align: 2px;
}

.price-note {
  margin: 28px 0 0;
  padding: 15px 18px;
  border: 1px dashed rgba(87, 122, 100, 0.38);
  border-radius: 14px;
  color: rgba(58, 42, 37, 0.82);
  background: rgba(255, 247, 237, 0.65);
  font-size: 14px;
}

.positioning-section,
.faq-section {
  background: var(--ivory);
}

.split-layout {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  align-items: start;
  gap: 72px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.feature-grid article {
  min-width: 0;
  padding: 26px;
  border: 1px solid rgba(87, 122, 100, 0.16);
  border-radius: 20px;
  background: var(--white);
  box-shadow: var(--card-shadow);
}

.feature-grid article > span {
  display: grid;
  width: 44px;
  height: 44px;
  margin-bottom: 18px;
  place-items: center;
  border-radius: 15px;
  color: var(--white);
  background: var(--sage);
  font-weight: 900;
}

.feature-grid h3,
.scenario-grid h3 {
  margin-bottom: 8px;
  font-size: 20px;
}

.feature-grid p,
.scenario-grid p {
  margin-bottom: 0;
  color: rgba(58, 42, 37, 0.72);
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.scenario-grid article {
  position: relative;
  min-width: 0;
  padding: 30px 24px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--white);
}

.scenario-grid article::after {
  position: absolute;
  right: -24px;
  bottom: -30px;
  width: 92px;
  height: 92px;
  border: 15px solid rgba(216, 154, 61, 0.10);
  border-radius: 50%;
  content: "";
}

.scenario-grid article > span {
  display: inline-flex;
  margin-bottom: 28px;
  padding: 5px 11px;
  border-radius: 999px;
  color: var(--terracotta-ink);
  background: var(--ivory);
  font-size: 13px;
  font-weight: 800;
}

.process-section {
  background: linear-gradient(135deg, var(--cocoa), #4c3831);
}

.process-section h2,
.process-section h3,
.process-section .section-heading p {
  color: var(--white);
}

.process-section .eyebrow {
  color: #f5d8a6;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 22px;
  list-style: none;
  background: rgba(255, 255, 255, 0.15);
}

.process-list li {
  min-width: 0;
  padding: 28px 24px;
  background: rgba(255, 255, 255, 0.06);
}

.process-list li > span {
  display: grid;
  width: 39px;
  height: 39px;
  margin-bottom: 22px;
  place-items: center;
  border-radius: 50%;
  color: var(--cocoa);
  background: var(--gold);
  font-weight: 900;
}

.process-list h3 {
  margin-bottom: 8px;
  font-size: 19px;
}

.process-list p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 14px;
}

.notice-section {
  background: var(--white);
}

.notice-card {
  display: grid;
  grid-template-columns: 1fr 1.2fr auto;
  align-items: center;
  gap: 42px;
  padding: 46px;
  border: 1px solid rgba(199, 90, 60, 0.18);
  border-radius: 28px;
  background: var(--ivory);
  box-shadow: var(--soft-shadow);
}

.notice-card h2 {
  margin-bottom: 12px;
  font-size: 30px;
}

.notice-card p {
  margin-bottom: 0;
  color: rgba(58, 42, 37, 0.74);
}

.notice-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.notice-list li {
  min-width: 0;
  padding: 14px;
  border-radius: 14px;
  background: var(--white);
}

.notice-list strong,
.notice-list span {
  display: block;
}

.notice-list strong {
  color: var(--terracotta-ink);
}

.notice-list span {
  color: rgba(58, 42, 37, 0.72);
  font-size: 13px;
}

.faq-layout {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  align-items: start;
  gap: 74px;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-list details {
  border: 1px solid rgba(199, 90, 60, 0.16);
  border-radius: 18px;
  background: var(--white);
  box-shadow: 0 8px 24px rgba(58, 42, 37, 0.05);
}

.faq-list summary {
  position: relative;
  padding: 20px 54px 20px 22px;
  cursor: pointer;
  font-weight: 800;
  list-style: none;
}

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

.faq-list summary::after {
  position: absolute;
  top: 50%;
  right: 20px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  color: var(--terracotta);
  background: var(--ivory);
  content: "+";
  line-height: 28px;
  text-align: center;
  transform: translateY(-50%);
}

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

.faq-list details p {
  margin: 0;
  padding: 0 22px 22px;
  color: rgba(58, 42, 37, 0.74);
}

.site-footer {
  padding: 46px 0;
  border-top: 1px solid rgba(199, 90, 60, 0.16);
  background: var(--white);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) 1.4fr auto;
  align-items: center;
  gap: 38px;
}

.footer-brand img {
  width: min(310px, 100%);
  height: auto;
}

.footer-grid p {
  margin: 0;
  color: rgba(58, 42, 37, 0.72);
}

@media (max-width: 1024px) {
  .site-nav > a:not(.nav-cta) {
    display: none;
  }

  .hero-grid {
    grid-template-columns: 1fr 0.72fr;
    gap: 38px;
  }

  .product-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .notice-card {
    grid-template-columns: 1fr 1.3fr;
  }

  .notice-card > .button {
    grid-column: 1 / -1;
    justify-self: start;
  }
}

@media (max-width: 760px) {
  .section {
    padding: 68px 0;
  }

  .hero-grid,
  .split-layout,
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 38px;
  }

  .hero-copy {
    text-align: center;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-note {
    display: inline-block;
    text-align: left;
  }

  .heading-row {
    display: block;
  }

  .heading-row .text-link,
  .heading-row .button {
    margin-top: 18px;
  }

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

  .notice-card {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 34px;
  }

  .notice-card > .button {
    grid-column: auto;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-brand img {
    margin-inline: auto;
  }

  .footer-link {
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 24px, 1180px);
  }

  .header-inner {
    min-height: 70px;
  }

  .brand {
    flex-basis: 226px;
  }

  .brand img {
    width: 226px;
  }

  .nav-cta {
    min-height: 40px;
    padding: 0 15px;
    font-size: 13px;
  }

  .hero {
    padding: 56px 0 62px;
  }

  .hero h1 {
    font-size: 35px;
  }

  .hero-lead {
    font-size: 16px;
  }

  .hero-gift {
    padding: 30px 24px;
  }

  .section {
    padding: 58px 0;
  }

  .section-heading h2 {
    font-size: 30px;
  }

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

  .product-card {
    border-radius: 16px;
  }

  .product-image {
    padding: 8px;
  }

  .product-info {
    padding: 13px 11px 14px;
  }

  .product-name {
    min-height: 42px;
    margin: 5px 0 10px;
    font-size: 14px;
  }

  .product-price {
    font-size: 13px;
  }

  .feature-grid,
  .scenario-grid,
  .notice-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .feature-grid article,
  .scenario-grid article {
    padding: 20px 16px;
  }

  .scenario-grid article > span {
    margin-bottom: 18px;
  }

  .process-list {
    grid-template-columns: 1fr;
  }

  .notice-card {
    padding: 26px 20px;
    border-radius: 22px;
  }
}

@media (max-width: 430px) {
  .brand {
    flex-basis: 194px;
  }

  .brand img {
    width: 194px;
  }

  .nav-cta {
    padding: 0 12px;
    font-size: 12px;
  }

  .hero h1 {
    font-size: 31px;
  }

  .feature-grid,
  .scenario-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}