:root {
  color-scheme: light;
  --bg: #eef3f8;
  --text: #18212b;
  --text-mid: #5f6c7c;
  --text-soft: #8a96a8;
  --card-wrap: #dbe4ef;
  --card: rgba(250, 252, 255, 0.94);
  --card-border: rgba(255, 255, 255, 0.92);
  --button: #203042;
  --button-hover: #162536;
  --shadow-soft: 0 10px 24px rgba(28, 52, 84, 0.08);
  --shadow-card: 0 10px 36px rgba(28, 52, 84, 0.1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

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

.page-shell {
  position: relative;
  width: min(calc(100% - 48px), 1296px);
  margin: 0 auto;
  padding: 32px 0 30px;
}

.page-shell::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  width: 100vw;
  height: clamp(420px, 58vw, 760px);
  transform: translateX(-50%);
  background-image:
    linear-gradient(180deg, rgba(238, 243, 248, 0.14) 0%, rgba(238, 243, 248, 0.62) 60%, rgba(238, 243, 248, 0.99) 100%),
    repeating-conic-gradient(at 1px 1px,
      rgba(171, 185, 203, 0.52) 0deg 90deg,
      transparent 90deg 180deg,
      rgba(171, 185, 203, 0.52) 180deg 1turn);
  background-size: auto, 48px 48px;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.98) 0%, rgba(0, 0, 0, 0.8) 56%, transparent 100%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.98) 0%, rgba(0, 0, 0, 0.8) 56%, transparent 100%);
  z-index: 0;
}

.page-shell::after {
  content: "";
  position: absolute;
  left: 50%;
  top: -120px;
  width: min(1320px, 100vw);
  height: clamp(280px, 34vw, 460px);
  transform: translateX(-50%);
  border-radius: 999px;
  background:
    radial-gradient(circle at center top, rgba(207, 230, 255, 0.8) 0%, rgba(153, 199, 255, 0.28) 38%, rgba(153, 199, 255, 0) 74%);
  filter: blur(38px);
  pointer-events: none;
  z-index: 0;
}

.hero-glow {
  position: absolute;
  left: 50%;
  top: 320px;
  width: min(1275px, 100vw);
  height: 860px;
  transform: translateX(-50%);
  border-radius: 999px;
  background:
    radial-gradient(circle at center, rgba(82, 145, 255, 0.22), rgba(95, 177, 255, 0.1), rgba(95, 177, 255, 0) 72%);
  filter: blur(52px);
  pointer-events: none;
  z-index: 0;
}

.topbar,
.hero,
.flow-section,
.footer {
  position: relative;
  z-index: 1;
}

.topbar {
  position: sticky;
  top: 12px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.68);
  border-radius: 20px;
  background: rgba(249, 252, 255, 0.82);
  backdrop-filter: blur(15px);
  box-shadow: var(--shadow-soft);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  display: block;
  width: 32px;
  height: 32px;
  margin-top: -2px;
  flex: none;
  object-fit: contain;
}

.brand-copy {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.brand-copy strong {
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
}

.brand-divider {
  width: 1px;
  height: 12px;
  background: #c9d4df;
}

.brand-copy small {
  font-size: 12px;
  color: var(--text-soft);
  line-height: 1;
}

.topbar-actions {
  display: inline-flex;
  align-items: center;
  gap: 20px;
}

.topbar-link {
  font-size: 14px;
  color: #556375;
  margin-right: 8px;
  transition: color 0.18s ease;
}

.topbar-link:hover {
  color: var(--text);
}

.hero {
  position: relative;
  padding-top: 146px;
}

.hero-copy {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero-copy h1 {
  width: min(960px, 100%);
  margin: 0;
  font-family: "Outfit", "Manrope", "PingFang SC", sans-serif;
  font-size: clamp(42px, 5vw, 60px);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: 0.01em;
}

.hero-desc {
  width: min(612px, 100%);
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 22px;
  color: #445265;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 96px;
  border: 0;
  border-radius: 12px;
  padding: 0 24px;
  font-weight: 600;
  cursor: pointer;
}

.button-dark {
  background: var(--button);
  color: #fff;
}

.hero-cta {
  width: 288px;
  min-height: 56px;
  border-radius: 18px;
  padding: 16px 20px;
  font-size: 16px;
  line-height: 1.3;
  text-align: center;
  box-shadow: 0 14px 28px rgba(22, 41, 69, 0.16);
  transition:
    transform 0.14s ease,
    background 0.14s ease,
    opacity 0.14s ease;
}

.hero-cta:hover {
  background: var(--button-hover);
}

.hero-cta:active {
  transform: scale(0.97);
  opacity: 0.92;
}

.workspace-shot {
  position: relative;
  z-index: 1;
  width: min(100%, 1136px);
  margin: 95px auto 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.84);
  border-radius: 28px;
  box-shadow: 0 12px 36px rgba(26, 46, 74, 0.12);
}

.workspace-shot img {
  width: 100%;
  height: auto;
}

.flow-section {
  margin-top: 64px;
}

.flow-section h2 {
  margin: 0;
  padding: 0 38px;
  font-family: "Outfit", "Manrope", "PingFang SC", sans-serif;
  text-align: center;
  font-size: 44px;
  line-height: 1.22;
  font-weight: 800;
}

.flow-intro {
  text-align: center;
  margin: 16px 0 0;
  padding: 0 38px;
  font-size: 16px;
  line-height: 22px;
  color: var(--text-mid);
}

.flow-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 24px;
}

.flow-card {
  display: flex;
  flex-direction: column;
  min-height: 403px;
  padding: 6px 6px 28px;
  border-radius: 46px;
  background: var(--card-wrap);
}

.flow-preview {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  min-height: 238px;
  overflow: hidden;
  border-radius: 40px;
  background: var(--card);
  border: 8px solid var(--card-border);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.68);
}

.flow-preview-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.flow-card h3 {
  margin: 28px 21px 0;
  font-size: 16px;
  line-height: 1.25;
  font-weight: 700;
}

.flow-card p {
  max-width: 270px;
  margin: 12px 21px 0;
  font-size: 14px;
  line-height: 22px;
  color: var(--text-mid);
}

.footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  margin: 60px auto 0;
  font-size: 16px;
  color: var(--text-mid);
}

.footer a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (max-width: 1360px) {
  .page-shell {
    width: min(calc(100% - 48px), 1296px);
  }
}

@media (max-width: 1120px) {
  .hero {
    padding-top: 92px;
  }

  .page-shell::before {
    height: clamp(360px, 66vw, 620px);
    background-size: auto, 42px 42px;
  }

  .page-shell::after {
    top: -96px;
    width: min(1180px, 100vw);
    height: clamp(240px, 42vw, 360px);
  }

  .workspace-shot {
    margin-top: 64px;
  }
}

@media (max-width: 740px) {
  .page-shell {
    width: min(calc(100% - 28px), 1296px);
    padding-top: 20px;
  }

  .topbar {
    gap: 12px;
    flex-wrap: wrap;
  }

  .topbar-actions {
    width: 100%;
    justify-content: flex-end;
  }

  .hero {
    padding-top: 76px;
  }

  .page-shell::before {
    height: clamp(300px, 84vw, 460px);
    background-size: auto, 36px 36px;
  }

  .page-shell::after {
    top: -72px;
    width: 100vw;
    height: clamp(200px, 52vw, 280px);
    filter: blur(28px);
  }

  .hero-copy h1 {
    font-size: clamp(36px, 11vw, 46px);
    line-height: 1.08;
  }

  .hero-buttons {
    gap: 12px;
  }

  .hero-cta {
    width: 100%;
  }

  .workspace-shot {
    margin-top: 42px;
    border-radius: 24px;
  }

  .flow-section {
    margin-top: 48px;
  }

  .flow-section h2 {
    padding: 0;
    font-size: 30px;
    line-height: 1.25;
  }

  .flow-intro {
    margin-top: 14px;
    padding: 0;
  }

  .flow-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .flow-card {
    display: grid;
    grid-template-columns: 140px 1fr;
    column-gap: 16px;
    align-items: center;
    min-height: auto;
    padding: 12px;
    border-radius: 30px;
  }

  .flow-preview {
    grid-row: 1 / span 2;
    min-height: 100px;
    height: 100px;
    border-radius: 20px;
  }

  .flow-card h3 {
    margin: 0 0 6px;
  }

  .flow-card p {
    max-width: none;
    margin: 0;
  }

  .footer {
    flex-direction: column;
    gap: 10px;
    font-size: 14px;
  }
}

@media (prefers-reduced-motion: no-preference) {

  .topbar,
  .hero-copy,
  .workspace-shot,
  .flow-card {
    animation: fadeUp 0.72s cubic-bezier(0.2, 1, 0.22, 1) both;
  }

  .workspace-shot {
    animation-delay: 0.08s;
  }

  .flow-card:nth-child(1) {
    animation-delay: 0.12s;
  }

  .flow-card:nth-child(2) {
    animation-delay: 0.18s;
  }

  .flow-card:nth-child(3) {
    animation-delay: 0.24s;
  }

  .flow-card:nth-child(4) {
    animation-delay: 0.3s;
  }

  .flow-card:nth-child(5) {
    animation-delay: 0.36s;
  }

  .flow-card:nth-child(6) {
    animation-delay: 0.42s;
  }

  .flow-card:nth-child(7) {
    animation-delay: 0.48s;
  }

  .flow-card:nth-child(8) {
    animation-delay: 0.54s;
  }

  .flow-card:nth-child(9) {
    animation-delay: 0.6s;
  }
}

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

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