:root {
  --yellow: #ffc107;
  --orange: #ffb300;
  --red: #e60012;
  --red-deep: #c7000b;
  --ink: #1f1f1f;
  --muted: #666666;
  --gray: #f5f5f5;
  --cream: #fff7e6;
  --cream-2: #fff2cc;
  --line: #eeeeee;
  --white: #ffffff;
  --shadow: 0 18px 44px rgba(31, 31, 31, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "Source Han Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.65;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(circle at 90% 12%, rgba(255, 193, 7, 0.22), transparent 18%),
    radial-gradient(circle at 8% 42%, rgba(230, 0, 18, 0.08), transparent 17%),
    linear-gradient(180deg, #fff 0%, #fffaf0 100%);
}

img {
  display: block;
  width: 100%;
  height: auto;
}

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

.container {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 16px max(20px, calc((100vw - 1180px) / 2));
  background: rgba(255, 255, 255, 0.86);
  border-bottom: 1px solid rgba(238, 238, 238, 0.8);
  backdrop-filter: blur(16px);
  transition: box-shadow 0.2s ease, padding 0.2s ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  box-shadow: 0 12px 30px rgba(31, 31, 31, 0.08);
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.elephant-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 2px solid var(--red);
  border-radius: 18px;
  background: linear-gradient(135deg, #fff 0%, #fff9e5 100%);
  color: var(--red);
  font-weight: 900;
  line-height: 1;
}

.brand-copy strong,
.brand-copy small {
  display: block;
  line-height: 1.18;
}

.brand-copy strong {
  color: var(--red);
  font-size: 20px;
  font-weight: 900;
}

.brand-copy small {
  color: #333;
  font-size: 12px;
  letter-spacing: 2px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  color: #333;
  font-size: 15px;
  font-weight: 700;
}

.site-nav a {
  transition: color 0.18s ease;
}

.site-nav a:hover {
  color: var(--red);
}

.nav-cta,
.btn {
  border-radius: 999px;
}

.nav-cta {
  padding: 10px 18px;
  color: #fff;
  background: var(--red);
}

.nav-cta:hover {
  color: #fff;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 12px;
  background: var(--yellow);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--red);
}

.section {
  padding: 88px 0;
}

.hero {
  position: relative;
  display: grid;
  min-height: 92vh;
  align-items: center;
  overflow: hidden;
  padding-top: 92px;
  background: var(--yellow);
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-media picture,
.hero-media img {
  height: 100%;
}

.hero-media img {
  object-fit: cover;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(255, 193, 7, 0.96) 0%, rgba(255, 193, 7, 0.9) 31%, rgba(255, 193, 7, 0.36) 55%, rgba(230, 0, 18, 0.34) 100%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.2), rgba(255, 247, 230, 0.58));
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding: 70px 0 82px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--red);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 700px;
  margin-bottom: 20px;
  color: #161616;
  font-size: clamp(42px, 6.7vw, 78px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  color: #151515;
  font-size: clamp(30px, 4.2vw, 48px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: 0;
}

h3 {
  font-size: 22px;
  line-height: 1.28;
}

.hero-copy {
  max-width: 640px;
  color: #333333;
  font-size: clamp(18px, 2vw, 23px);
  font-weight: 700;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 24px;
  border: 1px solid transparent;
  font-weight: 900;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #fff;
  background: var(--red);
  box-shadow: 0 14px 32px rgba(230, 0, 18, 0.28);
}

.btn-primary:hover {
  background: var(--red-deep);
}

.btn-secondary {
  color: #1f1f1f;
  background: rgba(255, 255, 255, 0.92);
  border-color: rgba(31, 31, 31, 0.24);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 44px;
}

.hero-tags span {
  min-height: 38px;
  padding: 8px 16px;
  border: 1px solid rgba(230, 0, 18, 0.22);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--red);
  font-weight: 900;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading p:not(.eyebrow) {
  color: var(--muted);
  font-size: 18px;
}

.value-section,
.support-section {
  background: #fff;
}

.value-grid,
.product-grid,
.support-flow {
  display: grid;
  gap: 18px;
}

.value-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.value-card,
.product-card,
.support-step,
.lead-form {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 14px 34px rgba(31, 31, 31, 0.06);
}

.value-card {
  padding: 26px;
}

.value-card span,
.support-step span {
  display: inline-grid;
  place-items: center;
  min-width: 42px;
  height: 34px;
  margin-bottom: 22px;
  padding: 0 10px;
  border-radius: 999px;
  color: #fff;
  background: var(--red);
  font-weight: 900;
}

.value-card strong {
  display: block;
  margin-bottom: 10px;
  color: var(--red);
  font-size: 48px;
  line-height: 1;
}

.value-card h3,
.value-card p {
  margin-bottom: 0;
}

.value-card p,
.product-card p,
.support-step p,
.about-copy,
.contact-copy p,
.store-models p {
  color: var(--muted);
}

.about-section,
.store-section,
.process-section {
  background: var(--cream);
}

.about-panel {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 54px;
  align-items: start;
  padding: 42px;
  border: 1px solid rgba(230, 0, 18, 0.1);
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(255, 193, 7, 0.16), transparent 34%),
    #fff;
  box-shadow: var(--shadow);
}

.about-copy {
  font-size: 18px;
}

.product-section {
  background: #fff;
}

.brand-product-hero {
  position: relative;
  display: grid;
  grid-template-columns: 1.45fr 0.75fr;
  gap: 0;
  overflow: hidden;
  margin-bottom: 20px;
  border-radius: 20px;
  background: var(--yellow);
  box-shadow: var(--shadow);
}

.brand-product-hero img {
  height: 100%;
  min-height: 360px;
  object-fit: cover;
}

.brand-product-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 36px;
  color: #191919;
  background:
    radial-gradient(circle at 100% 100%, rgba(230, 0, 18, 0.22), transparent 32%),
    linear-gradient(135deg, #ffc107, #fff2a8);
}

.brand-product-copy span {
  width: fit-content;
  margin-bottom: 16px;
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--red);
  color: #fff;
  font-weight: 900;
}

.brand-product-copy h3 {
  margin-bottom: 12px;
  font-size: clamp(26px, 3vw, 40px);
  font-weight: 900;
}

.brand-product-copy p {
  margin-bottom: 0;
  color: #333;
  font-size: 17px;
  font-weight: 700;
}

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

.product-card {
  overflow: hidden;
  background: #fff;
}

.product-card img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.product-card div {
  padding: 22px 24px 24px;
}

.product-card h3 {
  margin-bottom: 8px;
  font-weight: 900;
}

.store-showcase {
  display: grid;
  grid-template-columns: 1.18fr 0.82fr;
  gap: 20px;
  align-items: stretch;
}

.store-showcase > img {
  height: 100%;
  min-height: 430px;
  border-radius: 20px;
  object-fit: cover;
  box-shadow: var(--shadow);
}

.store-models {
  display: grid;
  gap: 14px;
}

.store-models article {
  padding: 26px;
  border: 1px solid rgba(230, 0, 18, 0.14);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 10px 26px rgba(31, 31, 31, 0.05);
}

.store-models span {
  display: inline-flex;
  margin-bottom: 8px;
  color: var(--red);
  font-weight: 900;
}

.store-models strong {
  display: block;
  margin-bottom: 8px;
  font-size: 26px;
  font-weight: 900;
}

.support-flow {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.support-step {
  min-height: 190px;
  padding: 22px;
}

.support-step strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
}

.process-line {
  display: grid;
  grid-template-columns: repeat(9, minmax(0, 1fr));
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.process-line li {
  display: grid;
  place-items: center;
  min-height: 78px;
  padding: 12px;
  border: 1px solid rgba(230, 0, 18, 0.14);
  border-radius: 14px;
  background: #fff;
  color: #1f1f1f;
  font-weight: 900;
  text-align: center;
}

.contact-section {
  background:
    linear-gradient(135deg, rgba(255, 193, 7, 0.28), transparent 32%),
    #fff;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 42px;
  align-items: start;
}

.contact-methods {
  margin: 26px 0;
}

.contact-methods p {
  margin-bottom: 8px;
}

.qr-card {
  display: grid;
  width: 180px;
  gap: 10px;
  padding: 12px;
  border: 1px solid rgba(230, 0, 18, 0.16);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 10px 24px rgba(31, 31, 31, 0.08);
}

.qr-card img {
  aspect-ratio: 1;
  border-radius: 10px;
  object-fit: cover;
}

.qr-card span {
  color: var(--red);
  font-size: 14px;
  font-weight: 900;
  text-align: center;
}

.lead-form {
  display: grid;
  gap: 16px;
  padding: 30px;
}

.lead-form label {
  display: grid;
  gap: 7px;
  font-weight: 900;
}

.lead-form input,
.lead-form textarea {
  width: 100%;
  border: 1px solid #e6e6e6;
  border-radius: 10px;
  padding: 13px 14px;
  font: inherit;
  resize: vertical;
}

.lead-form input:focus,
.lead-form textarea:focus {
  outline: 2px solid rgba(255, 193, 7, 0.55);
  border-color: var(--yellow);
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.site-footer {
  padding: 36px 0;
  background: #222;
  color: #fff;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

.footer-mark {
  border-color: #fff;
  background: transparent;
  color: #fff;
}

.footer-inner p {
  margin: 4px 0 0;
  color: rgba(255, 255, 255, 0.72);
}

.reveal {
  opacity: 1;
  transform: translateY(0);
}

.js .reveal.is-visible {
  animation: fade-up 0.55s ease both;
}

@keyframes fade-up {
  from {
    opacity: 0.78;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .site-nav {
    position: absolute;
    top: 74px;
    right: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    width: min(320px, calc(100vw - 40px));
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #fff;
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .value-grid,
  .support-flow,
  .process-line,
  .about-panel,
  .brand-product-hero,
  .store-showcase,
  .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (max-width: 760px) {
  .container {
    width: min(100% - 28px, 1180px);
  }

  .section {
    padding: 64px 0;
  }

  .brand-copy strong {
    font-size: 17px;
  }

  .brand-copy small {
    font-size: 10px;
    letter-spacing: 1px;
  }

  .hero {
    min-height: 850px;
    align-items: end;
  }

  .hero-overlay {
    background:
      linear-gradient(180deg, rgba(255, 193, 7, 0.72) 0%, rgba(255, 193, 7, 0.95) 48%, rgba(255, 247, 230, 1) 100%);
  }

  h1 {
    font-size: 43px;
  }

  .hero-actions,
  .hero-actions .btn {
    width: 100%;
  }

  .value-grid,
  .product-grid-large,
  .support-flow,
  .process-line,
  .about-panel,
  .brand-product-hero,
  .store-showcase,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .about-panel,
  .lead-form {
    padding: 24px;
  }

  .brand-product-hero img,
  .store-showcase > img {
    min-height: 280px;
  }

  .brand-product-copy {
    padding: 26px;
  }

  .footer-inner {
    flex-direction: column;
  }
}