:root {
  /* 官網品牌漸層：#FBC600 → #F6AB00 → #ED7100 */
  --brand-yellow: #fbc600;
  --brand-amber: #f6ab00;
  --brand-orange: #ed7100;
  --brand-orange-deep: #a63d00;
  --blue-950: #29170d;
  --blue-900: #963b00;
  --blue-800: #bd4a00;
  --blue-650: #c65300;
  --blue-100: #ffe7c2;
  --blue-050: #fff8ed;
  --gold-500: var(--brand-amber);
  --gold-300: var(--brand-yellow);
  --ink: #222222;
  --muted: #665648;
  --white: #ffffff;
  --line: rgba(145, 58, 0, 0.17);
  --shadow: 0 18px 46px rgba(93, 39, 4, 0.12);
  --radius-lg: 28px;
  --radius-md: 20px;
  --page-padding: clamp(20px, 5vw, 72px);
  --content-width: 1180px;
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
  color: var(--ink);
  background: var(--blue-050);
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: clip;
  background: var(--blue-050);
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 12px 18px;
  transform: translateY(-160%);
  border-radius: 999px;
  background: var(--white);
  color: var(--blue-900);
  font-weight: 800;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 50%;
  display: flex;
  width: min(100%, calc(var(--content-width) + (var(--page-padding) * 2)));
  min-height: 82px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px var(--page-padding);
  transform: translateX(-50%);
  color: var(--white);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  display: flex;
  width: 36px;
  height: 36px;
  align-items: flex-end;
  justify-content: center;
  gap: 3px;
  padding: 8px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 10px;
}

.brand-mark span {
  width: 4px;
  border-radius: 2px 2px 0 0;
  background: var(--gold-300);
}

.brand-mark span:nth-child(1) { height: 7px; }
.brand-mark span:nth-child(2) { height: 13px; }
.brand-mark span:nth-child(3) { height: 19px; }

.brand-copy {
  display: grid;
  gap: 2px;
}

.brand-copy strong {
  font-size: 1rem;
  letter-spacing: 0.12em;
}

.brand-copy small {
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.57rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.header-edition {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  color: rgba(255, 255, 255, 0.7);
  font: 700 0.63rem/1 system-ui, sans-serif;
  letter-spacing: 0.16em;
}

.header-edition b {
  color: var(--gold-300);
  font-size: 1.2rem;
}

.hero {
  position: relative;
  isolation: isolate;
  min-height: 760px;
  overflow: hidden;
  padding: 118px var(--page-padding) 32px;
  background:
    radial-gradient(circle at 92% 3%, rgba(251, 198, 0, 0.38), transparent 33%),
    linear-gradient(145deg, #35190c, var(--brand-orange-deep) 58%, var(--brand-orange));
  color: var(--white);
}

.hero::before {
  position: absolute;
  z-index: -2;
  inset: 0;
  content: "";
  background: linear-gradient(90deg, rgba(35, 15, 7, 0.5), transparent 65%);
}

.hero-grid {
  position: absolute;
  z-index: -1;
  inset: 0;
  opacity: 0.2;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.18) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom right, transparent 8%, black 84%);
}

.hero-trajectory {
  position: absolute;
  z-index: -1;
  right: -180px;
  bottom: 88px;
  width: min(900px, 140vw);
  fill: var(--gold-300);
}

.hero-trajectory path {
  fill: none;
  stroke-linecap: round;
}

.trajectory-base {
  stroke: rgba(255, 255, 255, 0.15);
  stroke-width: 14;
}

.trajectory-glow {
  stroke: var(--gold-300);
  stroke-width: 2.5;
  stroke-dasharray: 8 12;
}

.hero-content,
.hero-ledger {
  width: min(100%, var(--content-width));
  margin-inline: auto;
}

.hero-content {
  display: grid;
  align-items: center;
  gap: 40px;
}

.eyebrow {
  display: flex;
  width: fit-content;
  max-width: 100%;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 24px;
}

.eyebrow span {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  padding: 6px 11px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.69rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.eyebrow span:last-child {
  border-color: rgba(251, 198, 0, 0.55);
  background: rgba(251, 198, 0, 0.14);
  color: var(--gold-300);
}

.hero h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(2.7rem, 13vw, 6.8rem);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -0.07em;
}

.hero h1 em {
  color: var(--gold-300);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.16em;
  font-weight: 400;
  letter-spacing: -0.08em;
}

.hero-subtitle {
  margin: 22px 0 0;
  color: var(--gold-300);
  font-size: clamp(1.15rem, 5vw, 1.65rem);
  font-weight: 800;
  letter-spacing: 0.08em;
}

.hero-summary {
  max-width: 520px;
  margin: 14px 0 28px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 1rem;
  line-height: 1.8;
}

.button {
  display: inline-flex;
  min-height: 54px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-radius: 14px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.button svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

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

.button:focus-visible,
.brand:focus-visible {
  outline: 3px solid var(--gold-300);
  outline-offset: 4px;
}

.button-gold {
  width: min(100%, 330px);
  padding: 14px 18px 14px 22px;
  background: linear-gradient(145deg, var(--brand-yellow), var(--brand-amber) 50%, var(--brand-orange));
  box-shadow: 0 12px 32px rgba(166, 61, 0, 0.3);
  color: #222222;
}

.anniversary-seal {
  position: relative;
  display: grid;
  width: min(64vw, 250px);
  aspect-ratio: 1;
  place-content: center;
  justify-self: center;
  text-align: center;
}

.anniversary-seal::before,
.anniversary-seal::after,
.seal-ring {
  position: absolute;
  border-radius: 50%;
  content: "";
}

.anniversary-seal::before {
  inset: 0;
  border: 1px solid rgba(241, 210, 139, 0.54);
}

.anniversary-seal::after {
  inset: 10px;
  border: 1px dashed rgba(241, 210, 139, 0.35);
}

.seal-ring {
  inset: 28px;
  background: rgba(60, 24, 6, 0.28);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

.anniversary-seal > *:not(.seal-ring) {
  position: relative;
  z-index: 1;
}

.seal-kicker,
.seal-label {
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.2em;
}

.seal-kicker { color: rgba(255, 255, 255, 0.55); }
.seal-label { color: var(--gold-300); line-height: 1.45; }

.anniversary-seal strong {
  margin: -4px 0 -8px;
  color: var(--white);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(5.5rem, 24vw, 8rem);
  font-weight: 400;
  letter-spacing: -0.08em;
  line-height: 1;
}

.hero-ledger {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  border-left: 1px solid rgba(255, 255, 255, 0.18);
}

.hero-ledger span {
  min-width: 0;
  padding: 13px 12px;
  border-right: 1px solid rgba(255, 255, 255, 0.18);
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(0.73rem, 3.4vw, 0.82rem);
  font-weight: 700;
  line-height: 1.5;
}

.hero-ledger b {
  margin-right: 5px;
  color: var(--gold-300);
  font: 700 0.68rem/1 system-ui, sans-serif;
}

.hero-ledger span:last-child:nth-child(odd) {
  grid-column: 1 / -1;
  text-align: center;
}

.offers-section {
  width: min(100%, calc(var(--content-width) + (var(--page-padding) * 2)));
  margin-inline: auto;
  padding: 80px var(--page-padding);
}

.section-heading {
  display: grid;
  gap: 18px;
  margin-bottom: 34px;
}

.section-kicker {
  margin: 0 0 9px;
  color: var(--blue-650);
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.18em;
}

.section-heading h2,
.reminder h2 {
  margin: 0;
  color: var(--blue-950);
  font-size: clamp(1.8rem, 8vw, 3.2rem);
  line-height: 1.2;
  letter-spacing: -0.04em;
}

.section-heading > p {
  max-width: 430px;
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.8;
}

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

.offer-card {
  position: relative;
  display: flex;
  min-height: 390px;
  flex-direction: column;
  overflow: hidden;
  padding: 24px;
  border: 1px solid rgba(166, 61, 0, 0.14);
  border-radius: var(--radius-lg);
  background: var(--white);
  box-shadow: var(--shadow);
  transition: border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.offer-card::after {
  position: absolute;
  right: -62px;
  bottom: -80px;
  width: 180px;
  height: 180px;
  border: 36px solid var(--blue-100);
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.offer-card:hover {
  border-color: rgba(237, 113, 0, 0.38);
  box-shadow: 0 22px 52px rgba(93, 39, 4, 0.17);
  transform: translateY(-3px);
}

.card-topline {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.card-number {
  color: var(--blue-650);
  font: 700 1rem/1 Georgia, serif;
}

.card-eyebrow {
  overflow: hidden;
  color: #76859a;
  font-size: 0.64rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-align: right;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-icon {
  display: grid;
  width: 52px;
  height: 52px;
  margin: 24px 0 18px;
  place-items: center;
  border-radius: 16px;
  background: var(--blue-100);
  color: var(--blue-800);
}

.card-icon svg {
  width: 27px;
  height: 27px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.offer-card h3 {
  position: relative;
  z-index: 1;
  margin: 0;
  color: var(--blue-950);
  font-size: clamp(1.35rem, 6.5vw, 1.85rem);
  line-height: 1.34;
  letter-spacing: -0.03em;
}

.offer-card > p {
  position: relative;
  z-index: 1;
  margin: 12px 0 24px;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.75;
}

.coupon-note {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 5px;
  margin: -4px 0 20px;
  padding: 14px 16px;
  border: 1px solid rgba(237, 113, 0, 0.2);
  border-radius: 16px;
  background: linear-gradient(135deg, #fff6df, #ffe3ad);
  color: var(--blue-950);
}

.coupon-note span {
  color: var(--blue-650);
  font-size: 0.67rem;
  font-weight: 900;
  letter-spacing: 0.14em;
}

.coupon-note strong {
  font-size: 0.94rem;
  line-height: 1.5;
}

.coupon-code-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.coupon-code-row small {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.coupon-code-row b {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 5px 12px;
  border: 1px dashed rgba(166, 61, 0, 0.45);
  border-radius: 999px;
  background: var(--white);
  color: var(--brand-orange-deep);
  font-size: 1.04rem;
  letter-spacing: 0.06em;
}

.card-actions {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 10px;
  margin-top: auto;
}

.card-cta {
  position: relative;
  z-index: 1;
  min-height: 52px;
  width: 100%;
  margin-top: 0;
  padding: 14px 16px 14px 18px;
  background: linear-gradient(145deg, #7b2e00, var(--brand-orange-deep));
  box-shadow: 0 8px 20px rgba(95, 31, 0, 0.28);
  color: var(--white);
}

.card-cta span {
  min-width: 0;
  line-height: 1.35;
}

.offer-card--featured {
  border-color: rgba(237, 113, 0, 0.28);
  background: linear-gradient(145deg, #ffffff 52%, #fff3dd);
}

.card-cta:hover {
  background: linear-gradient(145deg, #8c3300, #b44300);
  box-shadow: 0 12px 26px rgba(95, 31, 0, 0.34);
}

.reminder {
  display: grid;
  width: min(calc(100% - (var(--page-padding) * 2)), var(--content-width));
  gap: 22px;
  margin: 0 auto 80px;
  padding: 28px;
  border-radius: var(--radius-lg);
  background: var(--blue-100);
}

.reminder-icon {
  display: grid;
  width: 66px;
  height: 66px;
  place-items: center;
  border-radius: 20px;
  background: var(--blue-900);
  color: var(--gold-300);
  font: 400 2.1rem/1 Georgia, serif;
}

.reminder h2 {
  font-size: clamp(1.45rem, 7vw, 2.1rem);
}

.reminder div > p:last-child {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.75;
}

.site-footer {
  display: grid;
  gap: 20px;
  padding: 42px var(--page-padding);
  background: var(--blue-950);
  color: rgba(255, 255, 255, 0.7);
  text-align: center;
}

.footer-brand {
  display: grid;
  gap: 4px;
}

.footer-brand strong {
  color: var(--white);
  letter-spacing: 0.12em;
}

.footer-brand span,
.footer-signoff {
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.site-footer p {
  margin: 0;
  font-size: 0.86rem;
}

.footer-signoff {
  color: var(--gold-300);
}

.noscript-message {
  padding: 24px;
  border-radius: var(--radius-md);
  background: var(--white);
}

@media (min-width: 720px) {
  .hero {
    min-height: 720px;
    padding-top: 150px;
  }

  .hero-content {
    grid-template-columns: minmax(0, 1fr) minmax(240px, 0.6fr);
  }

  .hero-ledger {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    margin-top: 66px;
  }

  .hero-ledger span {
    padding: 16px;
    text-align: center;
  }

  .hero-ledger span:last-child:nth-child(odd) {
    grid-column: auto;
  }

  .anniversary-seal {
    width: min(28vw, 320px);
  }

  .section-heading {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: end;
  }

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

  .offer-card {
    min-height: 410px;
    padding: 30px;
  }

  .card-actions--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .offer-card--featured {
    grid-column: 1 / -1;
    min-height: auto;
  }

  .offer-card--featured .card-actions {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .reminder {
    grid-template-columns: auto 1fr;
    align-items: center;
    padding: 34px 40px;
  }

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

  .site-footer > p:nth-child(2) { text-align: center; }
  .footer-signoff { text-align: right; }
}

@media (min-width: 1080px) {
  .hero h1 {
    font-size: 6.6rem;
  }

  .hero-trajectory {
    right: -40px;
    width: 760px;
  }

  .offers-section {
    padding-top: 112px;
    padding-bottom: 112px;
  }
}

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