:root {
  color-scheme: dark;
  --ink: #120806;
  --wine: #4f0705;
  --wine-2: #7f0c08;
  --gold: #f5d786;
  --gold-bright: #ffd35b;
  --paper: #fff0cf;
  --muted: #d7c09a;
  --green: #13b858;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--paper);
  background:
    radial-gradient(circle at 25% 0%, rgba(189, 32, 17, 0.36), transparent 36rem),
    linear-gradient(180deg, #090504 0%, #190807 42%, #080403 100%);
  font-family: "Noto Serif TC", "Noto Serif SC", "Songti TC", "SimSun", serif;
  line-height: 1.58;
}

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

.flyer {
  width: min(100%, 780px);
  margin: 0 auto;
  overflow: hidden;
  background: #0f0706;
  box-shadow: 0 0 60px rgba(0, 0, 0, 0.55);
}

.hero {
  position: relative;
  min-height: 82svh;
  display: grid;
  align-items: start;
  isolation: isolate;
  background:
    radial-gradient(circle at 50% 62%, rgba(255, 211, 91, 0.22), transparent 19rem),
    linear-gradient(180deg, #1b0806 0%, #090403 100%);
}

.hero-bg,
.hero-shade {
  position: absolute;
  inset: 0;
  height: 100%;
}

.hero-bg {
  width: min(86%, 590px);
  height: auto;
  inset: auto 50% 2.5%;
  transform: translateX(50%);
  object-fit: contain;
  object-position: center bottom;
  z-index: -2;
  filter: drop-shadow(0 28px 34px rgba(0, 0, 0, 0.68));
}

.hero-shade {
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.08) 0%, rgba(20, 6, 4, 0.22) 42%, rgba(13, 4, 3, 0.74) 100%),
    repeating-linear-gradient(90deg, rgba(245, 215, 134, 0.05) 0 1px, transparent 1px 44px);
}

.hero-content {
  padding: 28px 26px 44vh;
  text-align: center;
}

.brand,
.eyebrow {
  margin: 0 0 8px;
  color: var(--gold-bright);
  font-weight: 900;
  letter-spacing: 0;
}

.brand {
  display: inline-flex;
  padding: 4px 15px;
  border: 1px solid rgba(245, 215, 134, 0.72);
  border-radius: 999px;
  background: rgba(54, 7, 4, 0.7);
  font-size: clamp(15px, 3.6vw, 21px);
}

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

h1 {
  margin: 12px 0 10px;
  color: #ffe6a5;
  font-size: clamp(42px, 12vw, 88px);
  line-height: 0.98;
  font-weight: 950;
  text-shadow: 0 3px 0 #64100a, 0 14px 26px rgba(0, 0, 0, 0.72);
}

h2 {
  margin-bottom: 12px;
  color: #ffe2a0;
  font-size: clamp(23px, 5.5vw, 38px);
  line-height: 1.18;
  font-weight: 950;
}

.hero-kicker {
  margin-bottom: 14px;
  color: #fff3cf;
  font-size: clamp(15px, 3.8vw, 21px);
  font-weight: 800;
}

.hero-offer {
  display: grid;
  gap: 6px;
  padding: 12px 15px;
  border: 1px solid rgba(255, 211, 91, 0.75);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(102, 8, 5, 0.9), rgba(27, 8, 5, 0.78));
  box-shadow: inset 0 0 0 1px rgba(255, 244, 209, 0.13), 0 14px 34px rgba(0, 0, 0, 0.4);
}

.hero-offer strong {
  color: var(--gold-bright);
  font-size: clamp(18px, 4.6vw, 26px);
  line-height: 1;
}

.hero-offer span {
  font-size: clamp(14px, 3.5vw, 18px);
  font-weight: 800;
}

.section {
  padding: 34px 24px;
  border-top: 1px solid rgba(245, 215, 134, 0.2);
}

.section p {
  color: var(--muted);
  font-size: clamp(14px, 3.3vw, 17px);
}

.punch {
  background:
    linear-gradient(180deg, rgba(92, 11, 8, 0.76), rgba(18, 8, 6, 0.95)),
    repeating-linear-gradient(45deg, rgba(245, 215, 134, 0.06) 0 1px, transparent 1px 16px);
}

.promise-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 18px;
}

.promise-row span {
  min-height: 44px;
  display: grid;
  place-items: center;
  padding: 7px;
  border: 1px solid rgba(255, 211, 91, 0.72);
  border-radius: 6px;
  color: var(--gold);
  background: rgba(0, 0, 0, 0.22);
  font-weight: 900;
  font-size: clamp(13px, 3.1vw, 16px);
  text-align: center;
}

.image-band {
  padding: 18px;
  background: #050302;
}

.image-band img,
.layout-grid img,
.specs img {
  border: 1px solid rgba(245, 215, 134, 0.72);
  border-radius: 8px;
  box-shadow: 0 16px 38px rgba(0, 0, 0, 0.42);
}

.layout-grid,
.specs {
  display: grid;
  gap: 20px;
}

.service {
  background: linear-gradient(180deg, #1a0906, #3f0705);
}

.service-list,
.case-list {
  display: grid;
  gap: 12px;
}

.service-list article,
.case-list article {
  padding: 15px;
  border: 1px solid rgba(245, 215, 134, 0.46);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.24);
}

.service-list b {
  display: block;
  color: #ffe2a0;
  font-size: clamp(15px, 3.5vw, 19px);
}

.service-list span,
.case-list span {
  color: var(--muted);
  font-size: clamp(13px, 3.1vw, 16px);
}

.proof {
  background:
    radial-gradient(circle at top right, rgba(255, 211, 91, 0.12), transparent 18rem),
    #0f0706;
}

.case-list p {
  margin-bottom: 7px;
  color: #fff1c5;
  font-weight: 800;
}

.specs {
  background: #170807;
}

.cta {
  padding: 36px 24px 94px;
  text-align: center;
  background: linear-gradient(180deg, #580805, #130605);
}

.cta p {
  margin-bottom: 8px;
  color: #fff1c5;
  font-size: clamp(14px, 3.5vw, 18px);
  font-weight: 800;
}

.whatsapp-main,
.sticky-whatsapp {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border-radius: 999px;
  color: white;
  background: linear-gradient(180deg, #18cc63, #0a9d47);
  font-family: "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  font-weight: 950;
  text-decoration: none;
  box-shadow: 0 14px 28px rgba(7, 123, 55, 0.35);
}

.whatsapp-main {
  width: min(100%, 420px);
  margin: 8px auto 18px;
  font-size: 18px;
}

.cta small {
  display: block;
  color: rgba(255, 240, 207, 0.7);
  font-family: "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  font-size: 12px;
  line-height: 1.5;
}

.sticky-whatsapp {
  position: fixed;
  z-index: 20;
  left: 50%;
  bottom: 18px;
  width: min(calc(100% - 32px), 520px);
  transform: translateX(-50%);
  border: 1px solid rgba(255, 255, 255, 0.35);
  font-size: 17px;
}

@media (min-width: 720px) {
  .hero-content {
    padding-inline: 54px;
  }

  .section,
  .cta {
    padding-inline: 46px;
  }

  .layout-grid,
  .specs {
    grid-template-columns: 0.86fr 1.14fr;
    align-items: center;
  }

  .specs {
    grid-template-columns: 1.1fr 0.9fr;
  }

  .case-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 430px) {
  .hero {
    min-height: 80svh;
  }

  .section {
    padding: 30px 18px;
  }

  .promise-row {
    grid-template-columns: repeat(2, 1fr);
  }
}