:root {
  --paper: #f7f7f8;
  --ink: #5e6068;
  --ink-strong: #2f3138;
  --line: #b8bbc2;
  --line-soft: #dfe1e6;
  --mist: rgba(255, 255, 255, 0.74);
  --rose: #c99cac;
  --cyan: #8bb8c1;
  --silver: #eef0f4;
  --shadow: 0 22px 70px rgba(70, 74, 86, 0.12);
  --shadow-lift: 0 32px 90px rgba(55, 59, 70, 0.2);
  --pointer-x: 0;
  --pointer-y: 0;
  --scroll-y: 0;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  position: relative;
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(242, 243, 246, 0.96)),
    var(--paper);
  font-family:
    "PingFang SC",
    "Microsoft YaHei",
    system-ui,
    -apple-system,
    sans-serif;
  letter-spacing: 0;
}

body::before {
  position: fixed;
  z-index: -2;
  inset: 0;
  background:
    radial-gradient(circle at 20% 18%, rgba(201, 156, 172, 0.16), transparent 28%),
    radial-gradient(circle at 88% 44%, rgba(139, 184, 193, 0.13), transparent 30%),
    linear-gradient(115deg, transparent 0 34%, rgba(255, 255, 255, 0.54) 34% 35%, transparent 35% 100%);
  content: "";
}

body::after {
  position: fixed;
  z-index: -1;
  inset: 0;
  opacity: 0.34;
  background-image:
    linear-gradient(rgba(184, 187, 194, 0.24) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184, 187, 194, 0.18) 1px, transparent 1px);
  background-size: 54px 54px;
  content: "";
  mask-image: linear-gradient(180deg, transparent, black 20%, black 78%, transparent);
}

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  display: flex;
  width: 100%;
  height: 68px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(184, 187, 194, 0.38);
  padding: 0 clamp(18px, 5vw, 72px);
  background: rgba(250, 250, 252, calc(0.72 + var(--scroll-y) * 0.18));
  box-shadow: 0 10px 40px rgba(45, 48, 56, calc(var(--scroll-y) * 0.1));
  backdrop-filter: blur(22px) saturate(1.15);
  animation: headerDrop 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.brand,
.nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
  color: var(--ink-strong);
  font-size: 15px;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 2px solid var(--line);
  border-radius: 50%;
  color: var(--rose);
  font-size: 12px;
  line-height: 1;
  box-shadow: inset 0 0 0 4px rgba(255, 255, 255, 0.58), 0 0 28px rgba(201, 156, 172, 0.2);
  animation: softPulse 3.8s ease-in-out infinite;
}

.nav {
  gap: clamp(14px, 3vw, 34px);
  color: #747780;
  font-size: 13px;
  font-weight: 700;
}

.nav a {
  position: relative;
  padding: 8px 0;
}

.nav a::after {
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--rose), var(--cyan), transparent);
  content: "";
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.28s ease;
}

.nav a:hover {
  color: var(--ink-strong);
}

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

.hero {
  position: relative;
  min-height: 92vh;
  overflow: hidden;
  display: grid;
  align-items: center;
  padding: 120px clamp(20px, 7vw, 104px) 80px;
  border-bottom: 1px solid var(--line-soft);
  isolation: isolate;
}

.hero::before {
  position: absolute;
  z-index: 1;
  inset: 10% -10% auto auto;
  width: min(540px, 56vw);
  aspect-ratio: 1;
  border: 1px solid rgba(184, 187, 194, 0.36);
  border-radius: 50%;
  content: "";
  opacity: 0.52;
  transform: translate(calc(var(--pointer-x) * -18px), calc(var(--pointer-y) * -18px));
  transition: transform 0.16s ease-out;
}

.hero::after {
  position: absolute;
  z-index: 1;
  right: clamp(16px, 6vw, 88px);
  bottom: 34px;
  left: clamp(16px, 6vw, 88px);
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(143, 146, 154, 0.86), transparent);
  content: "";
  animation: lineTravel 3.6s ease-in-out infinite;
}

.hero-art {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 42% center;
  filter: saturate(0.7) contrast(0.96);
  transform: scale(1.035) translate(calc(var(--pointer-x) * -10px), calc(var(--pointer-y) * -8px));
  transform-origin: center;
  animation: heroBreathe 12s ease-in-out infinite alternate;
  transition: transform 0.16s ease-out;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.48) 48%, rgba(255, 255, 255, 0.92) 74%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(247, 247, 248, 0.96));
}

.hero-glow {
  position: absolute;
  z-index: 0;
  inset: 0;
  background:
    linear-gradient(115deg, transparent 0 22%, rgba(255, 255, 255, 0.52) 33%, transparent 45%),
    radial-gradient(circle at calc(74% + var(--pointer-x) * 6%) calc(42% + var(--pointer-y) * 6%), rgba(201, 156, 172, 0.2), transparent 30%),
    radial-gradient(circle at 62% 72%, rgba(139, 184, 193, 0.16), transparent 34%);
  mix-blend-mode: screen;
  pointer-events: none;
  animation: sheenSweep 6s ease-in-out infinite;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(560px, 100%);
  margin-left: auto;
  color: var(--ink-strong);
  text-align: right;
}

.eyebrow,
.tag {
  margin: 0 0 18px;
  color: #8d9098;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 22px;
  color: transparent;
  -webkit-text-stroke: 2px #9fa2a9;
  filter: drop-shadow(0 16px 24px rgba(61, 64, 73, 0.14));
  font-size: clamp(54px, 9vw, 118px);
  line-height: 0.92;
  font-weight: 950;
  animation: titleFloat 5.8s ease-in-out infinite;
}

.hero-subtitle {
  margin-bottom: 34px;
  color: #666a73;
  font-size: clamp(16px, 2vw, 22px);
  font-weight: 800;
}

.hero-actions {
  display: flex;
  justify-content: flex-end;
  gap: 14px;
  flex-wrap: wrap;
}

.button {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--line);
  border-radius: 999px;
  padding: 0 22px;
  font-size: 14px;
  font-weight: 900;
  transition:
    transform 0.24s ease,
    border-color 0.24s ease,
    background 0.24s ease,
    box-shadow 0.24s ease;
}

.button::after {
  position: absolute;
  inset: -60% auto -60% -38%;
  width: 36%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.72), transparent);
  content: "";
  transform: skewX(-18deg) translateX(-120%);
  transition: transform 0.62s ease;
}

.button:hover {
  box-shadow: 0 14px 34px rgba(47, 49, 56, 0.16);
  transform: translateY(-3px);
}

.button:hover::after {
  transform: skewX(-18deg) translateX(520%);
}

.button.primary {
  border-color: #8d9098;
  background: var(--ink-strong);
  color: white;
}

.button.ghost {
  background: rgba(255, 255, 255, 0.45);
}

.intro {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.intro-item {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 8px;
  min-height: 112px;
  align-content: center;
  padding: 26px clamp(20px, 4vw, 54px);
  background: rgba(255, 255, 255, 0.68);
}

.intro-item::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.55), transparent 42%);
  content: "";
  opacity: 0;
  transition: opacity 0.28s ease;
}

.intro-item:hover::after {
  opacity: 1;
}

.intro-item strong {
  color: var(--ink-strong);
  font-size: 18px;
}

.intro-item span {
  color: #7d8088;
  font-size: 14px;
  font-weight: 700;
}

.section {
  position: relative;
  padding: 88px clamp(20px, 6vw, 88px);
}

.section.soft {
  background:
    linear-gradient(120deg, rgba(139, 184, 193, 0.12), transparent 38%),
    rgba(255, 255, 255, 0.44);
  border-block: 1px solid var(--line-soft);
}

.section-heading {
  max-width: 980px;
  margin: 0 auto 34px;
  text-align: center;
}

.section-heading .tag {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  border: 2px solid var(--line);
  border-radius: 999px;
  padding: 0 28px;
  background: rgba(255, 255, 255, 0.72);
}

h2 {
  margin-bottom: 0;
  color: var(--ink-strong);
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.12;
}

.price-grid {
  display: grid;
  max-width: 1160px;
  margin: 0 auto;
  gap: 28px;
}

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

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

.price-card {
  position: relative;
  overflow: hidden;
  min-width: 0;
  border: 3px solid var(--line);
  padding: clamp(22px, 3vw, 34px);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(246, 247, 250, 0.68)),
    rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
  transition:
    border-color 0.28s ease,
    box-shadow 0.28s ease,
    transform 0.28s ease;
}

.price-card::before {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.78);
  content: "";
  pointer-events: none;
}

.price-card::after {
  position: absolute;
  inset: -30% -70%;
  background: linear-gradient(115deg, transparent 38%, rgba(255, 255, 255, 0.72) 48%, transparent 58%);
  content: "";
  opacity: 0;
  transform: translateX(-18%);
  transition:
    opacity 0.28s ease,
    transform 0.7s ease;
  pointer-events: none;
}

.price-card:hover {
  border-color: #9ea9b0;
  box-shadow: var(--shadow-lift);
  transform: translateY(-8px);
}

.price-card:hover::after {
  opacity: 1;
  transform: translateX(18%);
}

.price-card.featured {
  border-color: #aeb7bd;
  background:
    linear-gradient(140deg, rgba(201, 156, 172, 0.14), rgba(139, 184, 193, 0.1) 44%, rgba(255, 255, 255, 0.78)),
    white;
}

h3 {
  margin-bottom: 24px;
  color: var(--ink-strong);
  font-size: 17px;
  font-weight: 950;
  text-align: center;
}

h3::before,
h3::after,
h4::before,
h4::after {
  color: #8f929a;
  content: "【";
}

h3::after,
h4::after {
  content: "】";
}

h4 {
  margin: 30px 0 18px;
  color: var(--ink-strong);
  font-size: 15px;
  font-weight: 950;
  text-align: center;
}

ul {
  display: grid;
  gap: 13px;
  margin: 0;
  padding: 0;
  list-style: none;
}

li {
  position: relative;
  display: flex;
  min-height: 24px;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-left: 16px;
  color: #696c74;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.45;
}

li::before {
  position: absolute;
  top: 0.66em;
  left: 0;
  width: 5px;
  height: 5px;
  background: var(--rose);
  content: "";
  transform: rotate(45deg);
  transition:
    background 0.22s ease,
    transform 0.22s ease;
}

li:hover::before {
  background: var(--cyan);
  transform: rotate(45deg) scale(1.35);
}

li b {
  flex: 0 0 auto;
  color: #52555e;
  font-weight: 950;
}

.note {
  margin: 22px 0 0;
  color: #787b84;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.8;
}

.idv-table {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1.2fr 1fr 1.2fr 1.2fr;
  max-width: 1160px;
  margin: 0 auto 28px;
  border: 3px solid var(--line);
  background: rgba(255, 255, 255, 0.74);
  box-shadow: var(--shadow);
  transition:
    box-shadow 0.28s ease,
    transform 0.28s ease;
}

.idv-table::after {
  position: absolute;
  inset: -40% -80%;
  background: linear-gradient(105deg, transparent 42%, rgba(255, 255, 255, 0.65) 50%, transparent 58%);
  content: "";
  opacity: 0.5;
  animation: tableShine 8s ease-in-out infinite;
  pointer-events: none;
}

.idv-table:hover {
  box-shadow: var(--shadow-lift);
  transform: translateY(-5px);
}

.table-col {
  display: grid;
  align-content: start;
  gap: 13px;
  min-width: 0;
  padding: 28px 20px;
  text-align: center;
}

.table-col + .table-col {
  border-left: 1px solid var(--line-soft);
}

.table-col h3 {
  margin-bottom: 0;
}

.table-col p {
  margin: 0;
  color: #686b73;
  font-size: 14px;
  font-weight: 850;
  line-height: 1.35;
}

.table-col.center {
  background: rgba(238, 240, 244, 0.44);
}

.table-col.numbers {
  padding-top: 77px;
}

.idv-extra {
  margin-top: 28px;
}

.contact {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 34px;
  align-items: center;
  padding: 88px clamp(20px, 6vw, 88px);
  background:
    linear-gradient(90deg, rgba(47, 49, 56, 0.92), rgba(80, 84, 94, 0.72)),
    var(--ink-strong);
  color: white;
}

.contact::before {
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(circle at 22% 42%, rgba(201, 156, 172, 0.26), transparent 28%),
    radial-gradient(circle at 80% 28%, rgba(139, 184, 193, 0.22), transparent 32%),
    linear-gradient(110deg, transparent 20%, rgba(255, 255, 255, 0.08) 48%, transparent 76%);
  content: "";
  animation: contactDrift 10s ease-in-out infinite alternate;
}

.contact > * {
  position: relative;
  z-index: 1;
}

.contact-copy {
  max-width: 760px;
}

.contact .tag {
  color: #d8c3cb;
}

.contact h2 {
  margin-bottom: 22px;
  color: white;
}

.contact-copy p:not(.tag) {
  color: rgba(255, 255, 255, 0.72);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.9;
}

.rules {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 12px;
  border: 2px solid rgba(255, 255, 255, 0.34);
  padding: 24px;
  background: rgba(255, 255, 255, 0.07);
}

.rules::before {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.15), transparent 42%);
  content: "";
  pointer-events: none;
}

.rules p {
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
  font-weight: 800;
  line-height: 1.65;
}

.contact-button {
  grid-column: 2;
  width: max-content;
  justify-self: start;
  border-color: rgba(255, 255, 255, 0.68);
  background: white;
  color: var(--ink-strong);
}

.enhanced .reveal {
  opacity: 0;
  translate: 0 26px;
  transition:
    opacity 0.72s ease var(--reveal-delay, 0ms),
    translate 0.72s cubic-bezier(0.2, 0.8, 0.2, 1) var(--reveal-delay, 0ms);
}

.enhanced .reveal.is-visible {
  opacity: 1;
  translate: 0 0;
}

.enhanced .price-card.reveal {
  transition:
    opacity 0.72s ease var(--reveal-delay, 0ms),
    translate 0.72s cubic-bezier(0.2, 0.8, 0.2, 1) var(--reveal-delay, 0ms),
    border-color 0.28s ease,
    box-shadow 0.28s ease,
    transform 0.28s ease;
}

.enhanced .idv-table.reveal {
  transition:
    opacity 0.72s ease var(--reveal-delay, 0ms),
    translate 0.72s cubic-bezier(0.2, 0.8, 0.2, 1) var(--reveal-delay, 0ms),
    box-shadow 0.28s ease,
    transform 0.28s ease;
}

.enhanced .contact-button.reveal {
  transition:
    opacity 0.72s ease var(--reveal-delay, 0ms),
    translate 0.72s cubic-bezier(0.2, 0.8, 0.2, 1) var(--reveal-delay, 0ms),
    transform 0.24s ease,
    border-color 0.24s ease,
    background 0.24s ease,
    box-shadow 0.24s ease;
}

@keyframes headerDrop {
  from {
    opacity: 0;
    transform: translateY(-18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes heroBreathe {
  from {
    filter: saturate(0.68) contrast(0.95) brightness(1.02);
  }
  to {
    filter: saturate(0.82) contrast(1.02) brightness(1.08);
  }
}

@keyframes titleFloat {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-7px);
  }
}

@keyframes sheenSweep {
  0%,
  100% {
    opacity: 0.38;
    transform: translateX(-10%);
  }
  50% {
    opacity: 0.78;
    transform: translateX(8%);
  }
}

@keyframes lineTravel {
  0%,
  100% {
    opacity: 0.35;
    transform: scaleX(0.35);
  }
  50% {
    opacity: 0.82;
    transform: scaleX(1);
  }
}

@keyframes softPulse {
  0%,
  100% {
    box-shadow: inset 0 0 0 4px rgba(255, 255, 255, 0.58), 0 0 22px rgba(201, 156, 172, 0.18);
  }
  50% {
    box-shadow: inset 0 0 0 4px rgba(255, 255, 255, 0.78), 0 0 34px rgba(139, 184, 193, 0.3);
  }
}

@keyframes tableShine {
  0%,
  45% {
    transform: translateX(-28%);
  }
  75%,
  100% {
    transform: translateX(28%);
  }
}

@keyframes contactDrift {
  from {
    transform: translate3d(-2%, -1%, 0) scale(1);
  }
  to {
    transform: translate3d(2%, 1%, 0) scale(1.04);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }

  .enhanced .reveal {
    opacity: 1;
    translate: 0 0;
  }
}

@media (max-width: 920px) {
  .site-header {
    height: auto;
    min-height: 66px;
    gap: 10px;
    flex-wrap: wrap;
    padding-block: 12px;
  }

  .nav {
    width: 100%;
    justify-content: space-between;
  }

  .hero {
    min-height: 820px;
    align-items: end;
  }

  .hero-art {
    object-position: 34% center;
  }

  .hero-shade {
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.92) 68%, rgba(247, 247, 248, 0.98)),
      linear-gradient(90deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.7));
  }

  .hero-content {
    margin-left: 0;
    text-align: left;
  }

  .hero-actions {
    justify-content: flex-start;
  }

  .intro,
  .price-grid.three,
  .price-grid.two,
  .contact {
    grid-template-columns: 1fr;
  }

  .idv-table {
    grid-template-columns: 1fr;
  }

  .table-col + .table-col {
    border-top: 1px solid var(--line-soft);
    border-left: 0;
  }

  .table-col.numbers {
    padding-top: 28px;
  }

  .contact-button {
    grid-column: auto;
  }
}

@media (max-width: 560px) {
  .brand {
    font-size: 14px;
  }

  .nav {
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 2px;
    font-size: 12px;
  }

  .hero {
    min-height: 760px;
    padding: 148px 18px 54px;
  }

  h1 {
    -webkit-text-stroke-width: 1.3px;
  }

  .hero-subtitle {
    max-width: 300px;
  }

  .button {
    width: 100%;
  }

  .section,
  .contact {
    padding: 64px 16px;
  }

  .price-card {
    border-width: 2px;
  }

  li {
    display: grid;
    gap: 4px;
  }

  li b {
    justify-self: start;
  }
}