@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&family=Noto+Sans+SC:wght@400;500;600;700&family=Noto+Serif+SC:wght@500;600&family=Source+Serif+4:opsz,wght@8..60,500;8..60,600&display=swap");

:root {
  --ink: #10201d;
  --ink-strong: #07120f;
  --muted: #5f706a;
  --paper: #fffaf1;
  --paper-strong: #fffdf8;
  --line: rgba(16, 32, 29, 0.12);
  --forest: #0a604f;
  --forest-2: #063d34;
  --copper: #c56b3f;
  --amber: #f3c56e;
  --mint: #7ed7b5;
  --blueprint: #0d2930;
  --shadow: 0 28px 80px rgba(24, 21, 14, 0.16);
  --shadow-soft: 0 14px 38px rgba(24, 21, 14, 0.08);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --content: 1260px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "IBM Plex Sans", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.56;
  background:
    radial-gradient(circle at 4% 4%, rgba(197, 107, 63, 0.2), transparent 28rem),
    radial-gradient(circle at 92% 0%, rgba(10, 96, 79, 0.2), transparent 34rem),
    linear-gradient(180deg, #fbf5ea 0%, #f3ebde 46%, #efe5d5 100%);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  opacity: 0.34;
  background-image:
    linear-gradient(rgba(16, 32, 29, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 32, 29, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, #000, transparent 78%);
}

a {
  color: inherit;
}

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

.shell {
  width: min(calc(100% - 44px), var(--content));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 14px 0 8px;
}

.nav {
  display: flex;
  min-height: 58px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.64);
  border-radius: 999px;
  background: rgba(255, 250, 241, 0.82);
  box-shadow: 0 14px 36px rgba(24, 21, 14, 0.08);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink-strong);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.brand-mark,
.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: 11px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.18), transparent),
    linear-gradient(135deg, var(--forest), var(--copper));
  box-shadow: 0 0 0 5px rgba(10, 96, 79, 0.08);
}

.brand-icon {
  object-fit: cover;
  background: var(--forest);
}

.nav-links,
.language-links {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.nav-links a,
.language-links a {
  padding: 7px 10px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.94rem;
  text-decoration: none;
  transition: color 160ms ease, background 160ms ease;
}

.nav-links a:hover,
.language-links a:hover,
.language-links a[aria-current="page"] {
  color: var(--ink-strong);
  background: rgba(10, 96, 79, 0.09);
}

.hero {
  padding: 22px 0 26px;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(420px, 1.08fr);
  gap: 18px;
  align-items: center;
  min-height: 540px;
  overflow: hidden;
  padding: clamp(24px, 4vw, 46px);
  border: 1px solid rgba(255, 255, 255, 0.68);
  border-radius: 36px;
  background:
    radial-gradient(circle at 76% 18%, rgba(126, 215, 181, 0.22), transparent 22rem),
    radial-gradient(circle at 90% 82%, rgba(243, 197, 110, 0.18), transparent 24rem),
    linear-gradient(135deg, #06231f 0%, #0a4e43 54%, #163f3c 100%);
  box-shadow: var(--shadow);
}

.hero-grid::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(255, 250, 241, 0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 250, 241, 0.14) 1px, transparent 1px);
  background-size: 44px 44px;
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 590px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--mint);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--ink-strong);
  line-height: 1.04;
}

.hero-copy h1,
.hero-copy h2 {
  color: #fffaf1;
}

h1 {
  max-width: 14ch;
  font-family: "Source Serif 4", "Noto Serif SC", Georgia, serif;
  font-size: clamp(3rem, 5vw, 4.7rem);
  font-weight: 600;
  letter-spacing: -0.065em;
}

h2 {
  font-family: "Source Serif 4", "Noto Serif SC", Georgia, serif;
  font-size: clamp(2rem, 3.7vw, 3.7rem);
  font-weight: 600;
  letter-spacing: -0.045em;
}

h3 {
  font-size: 1.12rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.lede {
  max-width: 62ch;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: clamp(1.02rem, 1.35vw, 1.16rem);
}

.hero-copy .lede {
  color: rgba(255, 250, 241, 0.78);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

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

.button-primary {
  color: #08221d;
  background: linear-gradient(135deg, var(--amber), #ffe4a9);
  box-shadow: 0 18px 36px rgba(243, 197, 110, 0.22);
}

.button-secondary {
  color: #fffaf1;
  border-color: rgba(255, 250, 241, 0.22);
  background: rgba(255, 250, 241, 0.1);
}

.card .button-secondary,
.page-panel .button-secondary {
  color: var(--ink);
  border-color: var(--line);
  background: rgba(255, 252, 246, 0.78);
}

.proof-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 20px;
  color: rgba(255, 250, 241, 0.8);
  font-size: 0.92rem;
}

.proof-row span {
  padding: 8px 11px;
  border: 1px solid rgba(255, 250, 241, 0.16);
  border-radius: 999px;
  background: rgba(255, 250, 241, 0.08);
}

.hero-proof-grid {
  display: none;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 18px;
  max-width: 640px;
}

.hero-proof-grid div {
  padding: 12px;
  border: 1px solid rgba(255, 250, 241, 0.16);
  border-radius: 18px;
  background: rgba(255, 250, 241, 0.08);
}

.hero-proof-grid strong {
  display: block;
  color: #fffaf1;
  font-size: 1.08rem;
  font-weight: 650;
  line-height: 1.1;
}

.hero-proof-grid span {
  display: block;
  margin-top: 6px;
  color: rgba(255, 250, 241, 0.66);
  font-size: 0.8rem;
}

.showcase {
  position: relative;
  z-index: 2;
  min-height: 500px;
}

.showcase::before {
  position: absolute;
  inset: 38px 0 30px 72px;
  z-index: 0;
  content: "";
  border: 1px solid rgba(255, 250, 241, 0.14);
  border-radius: 34px;
  background:
    radial-gradient(circle at 34% 30%, rgba(255, 250, 241, 0.12), transparent 18rem),
    rgba(255, 250, 241, 0.06);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.phone-stack {
  position: relative;
  display: grid;
  min-height: 500px;
  place-items: center;
}

.phone {
  position: absolute;
  width: min(35vw, 282px);
  overflow: hidden;
  border: 9px solid #0d1715;
  border-radius: 36px;
  background: #111c19;
  box-shadow: 0 28px 76px rgba(3, 16, 14, 0.32);
}

.phone img {
  width: 100%;
  border-radius: 27px;
}

.phone-main {
  z-index: 3;
  transform: translateX(-74px) translateY(6px) rotate(-2.5deg);
}

.phone-side {
  z-index: 2;
  opacity: 0.92;
  transform: translate(102px, 42px) rotate(5deg) scale(0.86);
}

.floating-card {
  position: absolute;
  z-index: 4;
  right: 6px;
  bottom: 42px;
  max-width: 278px;
  padding: 18px 19px;
  border: 1px solid rgba(6, 61, 52, 0.14);
  border-radius: 22px;
  background: rgba(255, 250, 241, 0.9);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
}

.floating-card strong {
  display: block;
  color: var(--forest-2);
}

.floating-card span {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 0.92rem;
}

.section {
  padding: 30px 0;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.84fr) minmax(280px, 0.6fr);
  gap: 24px;
  align-items: end;
  margin-bottom: 18px;
}

.section-heading p {
  margin: 0;
  color: var(--muted);
}

.grid-3,
.grid-2,
.feature-grid {
  display: grid;
  gap: 16px;
}

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

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

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

.card,
.panel,
.answer-card,
.page-panel {
  border: 1px solid rgba(255, 255, 255, 0.64);
  border-radius: var(--radius-lg);
  background: rgba(255, 250, 241, 0.82);
  box-shadow: var(--shadow-soft);
}

.card,
.answer-card,
.page-panel {
  padding: 22px;
}

.card p,
.answer-card p,
.page-panel p,
.muted {
  color: var(--muted);
}

.card p,
.answer-card p {
  margin: 10px 0 0;
}

.answer-card {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(300px, 0.52fr);
  gap: 22px;
  border-color: rgba(10, 96, 79, 0.16);
  background:
    linear-gradient(135deg, rgba(10, 96, 79, 0.11), transparent 48%),
    rgba(255, 250, 241, 0.84);
}

.answer-list,
.list {
  margin: 14px 0 0;
  padding-left: 19px;
  color: var(--muted);
}

.answer-list li + li,
.list li + li {
  margin-top: 7px;
}

.feature-tile {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 253, 247, 0.72);
}

.feature-tile span {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  border-radius: 12px;
  color: #fff8ed;
  font-weight: 700;
  background: linear-gradient(135deg, var(--forest), var(--copper));
}

.screen-gallery {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.screen-card {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.68);
  border-radius: 24px;
  background: rgba(255, 250, 241, 0.7);
  box-shadow: var(--shadow-soft);
}

.screen-card img {
  aspect-ratio: 642 / 1389;
  object-fit: cover;
  object-position: top;
}

.screen-card figcaption {
  padding: 12px 13px 14px;
  color: var(--muted);
  font-size: 0.88rem;
}

.band {
  padding: clamp(24px, 4vw, 40px);
  overflow: hidden;
  border-radius: var(--radius-xl);
  color: #fdf6ea;
  background:
    radial-gradient(circle at 86% 20%, rgba(243, 197, 110, 0.28), transparent 28rem),
    linear-gradient(135deg, var(--blueprint), var(--forest-2));
  box-shadow: var(--shadow);
}

.band h2,
.band h3 {
  color: #fffaf1;
}

.band p,
.band .list {
  color: rgba(255, 250, 241, 0.76);
}

.band-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.7fr);
  gap: 24px;
  align-items: center;
}

.pricing-card {
  padding: 24px;
  border: 1px solid rgba(255, 250, 241, 0.18);
  border-radius: 24px;
  background: rgba(255, 250, 241, 0.1);
}

.price {
  display: block;
  margin: 12px 0;
  color: var(--amber);
  font-family: "Source Serif 4", "Noto Serif SC", Georgia, serif;
  font-size: clamp(2.4rem, 4vw, 4.2rem);
  line-height: 1;
}

.page-hero {
  padding: 46px 0 18px;
}

.page-hero h1 {
  max-width: 14ch;
}

.page-wrap {
  display: grid;
  gap: 18px;
  padding-bottom: 34px;
}

.page-panel h2 {
  margin-bottom: 14px;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.page-panel h3 {
  margin-top: 22px;
}

.page-panel p {
  margin: 10px 0 0;
}

.page-panel ul,
.page-panel ol {
  margin: 12px 0 0;
  padding-left: 20px;
  color: var(--muted);
}

.language-panel {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.language-panel a {
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
  background: rgba(255, 252, 246, 0.66);
}

.note {
  margin-top: 16px;
  padding: 16px 18px;
  border-left: 4px solid var(--copper);
  border-radius: 16px;
  color: var(--ink);
  background: rgba(197, 107, 63, 0.1);
}

.footer {
  padding: 32px 0 48px;
  color: var(--muted);
  font-size: 0.94rem;
}

.footer-line {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.footer a {
  text-decoration-color: rgba(88, 106, 100, 0.42);
}

:lang(zh-Hans) h1 {
  max-width: 9.5em;
  font-family: "Noto Serif SC", "Source Serif 4", serif;
  font-size: clamp(3.1rem, 5.1vw, 4.55rem);
  font-weight: 600;
  letter-spacing: -0.08em;
}

:lang(zh-Hans) h2 {
  font-family: "Noto Serif SC", "Source Serif 4", serif;
  font-weight: 600;
  letter-spacing: -0.06em;
}

:lang(zh-Hans) .hero-copy .lede {
  max-width: 34em;
}

@media (prefers-reduced-motion: no-preference) {
  .hero-grid,
  .phone,
  .floating-card,
  .card,
  .screen-card {
    animation: rise 640ms ease both;
  }

  .phone-side {
    animation-delay: 90ms;
  }

  .floating-card {
    animation-delay: 170ms;
  }

  @keyframes rise {
    from {
      opacity: 0;
      transform: translateY(18px);
    }
  }
}

@media (max-width: 980px) {
  .hero-grid,
  .section-heading,
  .answer-card,
  .band-grid,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    min-height: auto;
    background:
      radial-gradient(circle at 74% 52%, rgba(126, 215, 181, 0.16), transparent 22rem),
      linear-gradient(160deg, rgba(8, 43, 38, 0.98), rgba(10, 96, 79, 0.9));
  }

  .grid-3,
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .showcase,
  .phone-stack {
    min-height: 460px;
  }

  .phone {
    width: min(45vw, 270px);
  }

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

@media (max-width: 680px) {
  .shell {
    width: min(calc(100% - 24px), var(--content));
  }

  .nav,
  .footer-line {
    align-items: flex-start;
    border-radius: 24px;
    flex-direction: column;
  }

  .hero {
    padding-top: 14px;
  }

  .hero-grid {
    padding: 22px;
    border-radius: 28px;
  }

  h1 {
    max-width: none;
    font-size: clamp(2.55rem, 12vw, 3.75rem);
  }

  :lang(zh-Hans) h1 {
    font-size: clamp(2.55rem, 11.2vw, 3.55rem);
  }

  .hero-grid,
  .grid-3,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .hero-proof-grid {
    display: none;
  }

  .showcase,
  .phone-stack {
    min-height: 330px;
  }

  .phone {
    width: min(53vw, 198px);
    border-width: 8px;
  }

  .phone-main {
    transform: translateX(-36px) rotate(-2deg);
  }

  .phone-side {
    transform: translate(56px, 38px) rotate(5deg) scale(0.82);
  }

  .floating-card {
    display: none;
  }

  .screen-gallery {
    grid-template-columns: 1fr 1fr;
  }
}