:root {
  color-scheme: light;
  --bg: #f7fbff;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-strong: #ffffff;
  --text: #102033;
  --muted: #5d7188;
  --line: rgba(34, 106, 176, 0.16);
  --blue: #1188f2;
  --blue-strong: #0866d8;
  --blue-soft: #dff2ff;
  --shadow: 0 24px 70px rgba(38, 113, 184, 0.16);
  --radius: 26px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 14% 0%, rgba(46, 164, 255, 0.2), transparent 32rem),
    radial-gradient(circle at 92% 8%, rgba(255, 207, 92, 0.18), transparent 26rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

a {
  color: var(--blue-strong);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.page {
  min-height: 100vh;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 18px 24px;
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 760;
}

.brand img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(17, 136, 242, 0.22);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.96rem;
  color: var(--muted);
}

.nav-links a {
  color: var(--muted);
}

.language-control {
  display: inline-flex;
  align-items: center;
}

.language-select {
  height: 36px;
  max-width: 190px;
  padding: 0 34px 0 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  color: var(--text);
  font: inherit;
  font-size: 0.92rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.78fr);
  gap: 56px;
  align-items: center;
  max-width: 1120px;
  margin: 0 auto;
  padding: 74px 24px 56px;
}

.hero h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(3rem, 7vw, 6.25rem);
  line-height: 0.94;
}

.hero p {
  max-width: 650px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.34rem);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 19px;
  border-radius: 999px;
  font-weight: 720;
  border: 1px solid transparent;
}

.button.primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 14px 32px rgba(17, 136, 242, 0.3);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.78);
  border-color: var(--line);
  color: var(--text);
}

.hero-card {
  position: relative;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 34px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(255, 255, 255, 0.58));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: auto -18% -22% -18%;
  height: 48%;
  background: linear-gradient(180deg, rgba(182, 230, 255, 0), rgba(142, 212, 249, 0.38));
  pointer-events: none;
}

.icon-stage {
  display: grid;
  place-items: center;
  min-height: 360px;
}

.icon-stage img {
  width: min(78%, 330px);
  border-radius: 25%;
  filter: drop-shadow(0 26px 34px rgba(17, 104, 184, 0.24));
}

.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 58px 24px;
}

.section h2 {
  margin: 0 0 18px;
  font-size: clamp(2rem, 4vw, 3.15rem);
  line-height: 1.04;
}

.section-lead {
  max-width: 760px;
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 1.12rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 16px 42px rgba(38, 113, 184, 0.09);
}

.card h3 {
  margin: 0 0 10px;
  font-size: 1.16rem;
}

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

.card-accent {
  background:
    linear-gradient(135deg, rgba(17, 136, 242, 0.12), rgba(255, 255, 255, 0.76)),
    var(--surface);
}

.product-gallery {
  padding-top: 38px;
}

.gallery-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.7fr);
  gap: 28px;
  align-items: end;
  margin-bottom: 28px;
}

.device-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(150px, 0.32fr);
  grid-template-areas:
    "mac ios"
    "ipad ios";
  gap: 18px;
  max-width: 1080px;
  margin-inline: auto;
}

.device-shot {
  margin: 0;
  position: relative;
  display: grid;
  place-items: center;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow);
}

.device-shot img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.device-shot figcaption {
  position: absolute;
  left: 16px;
  bottom: 16px;
  padding: 7px 11px;
  border: 1px solid rgba(255, 255, 255, 0.66);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.74);
  color: var(--text);
  font-size: 0.86rem;
  font-weight: 720;
  backdrop-filter: blur(14px);
}

.mac-shot {
  grid-area: mac;
  aspect-ratio: 1.71;
}

.ipad-shot {
  grid-area: ipad;
  aspect-ratio: 1.44;
}

.ios-shot {
  grid-area: ios;
  aspect-ratio: 0.46;
}

.photo-story {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(300px, 0.82fr);
  gap: 42px;
  align-items: center;
}

.photo-copy {
  min-width: 0;
}

.journey-visual {
  display: grid;
  place-items: center;
  min-height: 440px;
}

.phone-frame {
  position: relative;
  width: min(100%, 300px);
  aspect-ratio: 0.62;
  border: 1px solid var(--line);
  border-radius: 44px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(220, 242, 255, 0.86)),
    radial-gradient(circle at 26% 24%, rgba(17, 136, 242, 0.18), transparent 8rem);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.phone-frame::before {
  content: "";
  position: absolute;
  inset: 18px 86px auto;
  height: 5px;
  border-radius: 999px;
  background: rgba(16, 32, 51, 0.16);
}

.photo-tile {
  position: absolute;
  width: 118px;
  height: 142px;
  border: 6px solid #fff;
  border-radius: 22px;
  box-shadow: 0 18px 34px rgba(17, 104, 184, 0.18);
}

.tile-one {
  left: 26px;
  bottom: 34px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.16), transparent),
    linear-gradient(135deg, #80d5ff, #168bf1 58%, #0f6ed7);
}

.tile-two {
  right: 28px;
  top: 44px;
  background:
    radial-gradient(circle at 72% 22%, #fff6b9 0 10%, transparent 11%),
    linear-gradient(160deg, #8ee6ff, #eefbff 48%, #5ec28c 49%, #19a56f);
}

.tile-three {
  left: 88px;
  top: 170px;
  background:
    linear-gradient(180deg, #eaf8ff 0 36%, #72c9ff 37% 64%, #f7d47a 65%);
}

.route-line {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  fill: none;
  pointer-events: none;
}

.route-line path {
  stroke: var(--blue);
  stroke-width: 8;
  stroke-linecap: round;
  filter: drop-shadow(0 8px 10px rgba(8, 102, 216, 0.2));
}

.route-line circle {
  fill: var(--blue-strong);
  stroke: #fff;
  stroke-width: 6;
}

.showcase {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
  align-items: center;
}

.map-image {
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 32px;
  background: var(--surface-strong);
  box-shadow: var(--shadow);
  max-height: 460px;
}

.map-image img {
  display: block;
  width: 100%;
  height: 100%;
  max-height: 460px;
  object-fit: contain;
}

.list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
}

.list li {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.64);
  color: var(--muted);
}

.policy {
  max-width: 840px;
}

.policy h1 {
  margin: 0 0 18px;
  font-size: clamp(2.4rem, 6vw, 4.7rem);
  line-height: 1;
}

.policy h2 {
  margin-top: 42px;
  font-size: 1.55rem;
}

.policy p,
.policy li {
  color: var(--muted);
}

.policy ul {
  padding-left: 1.25rem;
}

.footer {
  max-width: 1120px;
  margin: 0 auto;
  padding: 42px 24px 70px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 10px;
}

.icp-link {
  display: inline-block;
  color: var(--muted);
  font-size: 0.86rem;
}

.icp-records {
  margin-top: 24px;
  text-align: center;
}

.icp-title {
  display: block;
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.icp-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 22px;
  margin-top: 8px;
}

.icp-item {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}

.icp-app {
  color: var(--muted);
  font-size: 0.86rem;
}

@media (max-width: 820px) {
  .nav {
    align-items: flex-start;
    position: static;
  }

  .nav-links {
    gap: 12px;
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .hero,
  .showcase,
  .photo-story,
  .gallery-heading,
  .device-grid {
    grid-template-columns: 1fr;
  }

  .device-grid {
    grid-template-areas:
      "mac"
      "ipad"
      "ios";
  }

  .ios-shot {
    width: min(100%, 320px);
    justify-self: center;
  }

  .hero {
    padding-top: 46px;
  }

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

  .icon-stage {
    min-height: 260px;
  }
}

@media (max-width: 520px) {
  .nav {
    padding-inline: 18px;
  }

  .brand span {
    display: none;
  }

  .hero,
  .section,
  .footer {
    padding-inline: 18px;
  }

  .hero h1 {
    font-size: 3.1rem;
  }
}

/* ============================================================
   VividMap 合并站：工作室首页 / 云迹页 / 滚动显现 / 微交互
   （沿用 ChronosMap 的浅色蓝调语言，仅在其上扩展）
   ============================================================ */

/* 工作室标记（V 字 + 节点） */
.studio-mark {
  display: inline-flex;
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  overflow: hidden;
  border-radius: 10px;
  box-shadow: 0 7px 18px rgba(17, 136, 242, 0.2);
  transition: transform 180ms ease, box-shadow 180ms ease;
}
.studio-mark img {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 0;
  box-shadow: none;
}
.brand:hover .studio-mark {
  transform: translateY(-1px) scale(1.04);
  box-shadow: 0 10px 24px rgba(17, 136, 242, 0.28);
}

.nav.scrolled {
  background: rgba(247, 251, 255, 0.82);
  box-shadow: 0 1px 0 var(--line);
}

/* 滚动显现（渐进增强：无 JS 时内容默认可见） */
.js .reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease, ease), transform 0.7s var(--ease, ease);
}
.js .reveal.in { opacity: 1; transform: none; }

/* 工作室首页 hero 视觉：双图标漂浮 + 漂浮地名胶囊 */
.studio-hero-visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 380px;
}
.app-icons {
  position: relative;
  display: flex;
  gap: 22px;
  align-items: center;
  padding: 30px 34px;
  border: 1px solid var(--line);
  border-radius: 34px;
  background: linear-gradient(180deg, rgba(255,255,255,0.9), rgba(255,255,255,0.6));
  box-shadow: var(--shadow);
}
.app-icons img {
  width: 116px;
  height: 116px;
  border-radius: 25%;
  filter: drop-shadow(0 18px 24px rgba(17,104,184,0.22));
  transition: transform 0.4s var(--ease, ease);
}
.app-icons img:first-child { transform: rotate(-5deg); }
.app-icons img:last-child { transform: rotate(5deg) translateY(8px); }
.app-icons:hover img:first-child { transform: rotate(-2deg) translateY(-6px); }
.app-icons:hover img:last-child { transform: rotate(2deg) translateY(2px); }
.icon-amp {
  font-family: var(--display, inherit);
  font-size: 2rem;
  font-weight: 700;
  color: var(--muted);
}
.float-chip {
  position: absolute;
  z-index: 3;
  padding: 8px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,0.92);
  box-shadow: 0 12px 26px rgba(38,113,184,0.16);
  font-size: 0.85rem;
  font-weight: 720;
  color: var(--text);
  white-space: nowrap;
  animation: floaty 6s ease-in-out infinite;
}
.float-chip::before {
  content: "";
  display: inline-block;
  width: 9px; height: 9px;
  border-radius: 50%;
  margin-right: 8px;
  vertical-align: middle;
  background: var(--c, var(--blue));
}
.chip-1 { --c: var(--blue); top: 4%; left: -6%; }
.chip-2 { --c: var(--blue-strong); bottom: 8%; right: -8%; animation-delay: 1.4s; }
.chip-3 { --c: #ffcf5c; top: 40%; left: -12%; animation-delay: 2.6s; }
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* 门户卡（首页双 App 入口） */
.portal-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}
.portal-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 16px 42px rgba(38,113,184,0.09);
  transition: transform 0.35s var(--ease, ease), box-shadow 0.35s var(--ease, ease);
}
.portal-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 26px 56px rgba(38,113,184,0.16);
}
.portal-card.accent {
  background: linear-gradient(135deg, rgba(17,136,242,0.12), rgba(255,255,255,0.78)), var(--surface);
}
.portal-head { display: flex; align-items: center; gap: 14px; }
.portal-head img {
  width: 58px; height: 58px;
  border-radius: 16px;
  box-shadow: 0 10px 24px rgba(17,136,242,0.2);
}
.portal-name { font-size: 1.5rem; font-weight: 760; }
.portal-tagline { margin: 0; color: var(--muted); }
.portal-shot {
  margin: 4px 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255,255,255,0.7);
}
.portal-shot img { display: block; width: 100%; aspect-ratio: 1.5; object-fit: cover; object-position: top; }
.portal-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: auto; }

/* 价值卡 */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

/* 云迹功能区的 2 列网格（独立类，窄屏可折叠；不可用内联样式，否则压过媒体查询） */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.value-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 16px 42px rgba(38,113,184,0.09);
}
.value-card .vmark {
  display: inline-grid;
  place-items: center;
  width: 40px; height: 40px;
  margin-bottom: 12px;
  border-radius: 12px;
  background: var(--blue-soft);
  color: var(--blue-strong);
  font-weight: 800;
}
.value-card p { margin: 0; color: var(--muted); }

/* 云迹页设备行（三张 iPhone 截图） */
.device-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  max-width: 760px;
  margin-inline: auto;
}
.device-row .device-shot { aspect-ratio: 0.47; }
.device-row .device-shot img { object-fit: cover; object-position: top; }

/* 云迹 hero 图标舞台复用 chronosmap .icon-stage，仅换图 */

@media (max-width: 820px) {
  .portal-grid, .values-grid, .device-row, .grid-2 { grid-template-columns: 1fr; }
  .device-row { max-width: 320px; }
  .studio-hero-visual { min-height: 300px; }
  .app-icons img { width: 92px; height: 92px; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
  .float-chip { animation: none; }
}