/* IPMotion 简体展览站视觉：以深蓝电影感承载完整自助导览，并保持桌机与扫码手机的阅读节奏。 */
:root {
  color-scheme: dark;
  --ink: #f7f8ff;
  --muted: #aeb8d8;
  --muted-soft: #7f8aab;
  --line: rgba(126, 155, 255, 0.22);
  --line-strong: rgba(107, 164, 255, 0.42);
  --surface: rgba(11, 18, 50, 0.72);
  --surface-strong: rgba(14, 24, 68, 0.92);
  --blue: #36b8ff;
  --indigo: #6967ff;
  --violet: #d24cff;
  --page: #05071a;
  --page-soft: #0a1031;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 76% 6%, rgba(59, 92, 255, 0.22), transparent 34rem),
    radial-gradient(circle at 8% 30%, rgba(163, 55, 255, 0.11), transparent 30rem),
    linear-gradient(180deg, #05071a 0%, #070a20 48%, #040617 100%);
  line-height: 1.7;
}

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

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

button,
a { -webkit-tap-highlight-color: transparent; }

.section-shell,
.site-header,
.hero {
  width: min(1180px, calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  min-height: 82px;
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 30px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.brand__mark {
  width: 23px;
  height: 27px;
  display: inline-block;
  background: linear-gradient(145deg, #fff 0 37%, #346cff 38% 68%, #c14cff 69%);
  clip-path: polygon(0 0, 58% 0, 42% 42%, 100% 42%, 100% 100%, 44% 100%, 58% 58%, 0 58%);
}

.site-header nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 22px;
  margin-left: auto;
  color: #c5cbe1;
  font-size: 0.84rem;
}

.site-header nav a,
.text-link { transition: color 150ms ease; }

.site-header nav a:hover,
.site-header nav a:focus-visible,
.text-link:hover,
.text-link:focus-visible { color: #fff; }

.header-cta {
  min-height: 42px;
  padding: 0 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  border: 1px solid rgba(105, 165, 255, 0.6);
  background: rgba(35, 77, 196, 0.2);
  font-weight: 700;
}

.hero {
  min-height: 720px;
  padding: 84px 0 96px;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(520px, 1.08fr);
  align-items: center;
  gap: 58px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(3.2rem, 4.45vw, 4.8rem);
  line-height: 1.02;
  letter-spacing: -0.067em;
}

.hero h1 em {
  display: inline;
  white-space: nowrap;
  color: transparent;
  background: linear-gradient(90deg, #86dcff 0%, #786fff 50%, #ec63ff 100%);
  background-clip: text;
  font-style: normal;
}

.hero__lead {
  max-width: 590px;
  margin: 28px 0 0;
  color: #d5d9ec;
  font-size: 1.09rem;
  line-height: 1.82;
}

.hero__actions,
.self-service__actions,
.contact-form__footer {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero__actions { margin-top: 34px; }

.button {
  min-height: 52px;
  padding: 0 25px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  font-weight: 750;
  text-align: center;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

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

.button--primary {
  background: linear-gradient(100deg, #126cf1, #6650ec 58%, #a42bd5);
  box-shadow: 0 14px 38px rgba(69, 77, 255, 0.3);
}

.button--secondary {
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.04);
}

.hero__note {
  max-width: 590px;
  margin: 23px 0 0;
  color: #8f99bb;
  font-size: 0.88rem;
}

.hero__visual,
.feature-story__visual {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(70, 146, 255, 0.46);
  background: #070b22;
  box-shadow: 0 30px 90px rgba(22, 53, 196, 0.27), 0 0 52px rgba(142, 43, 232, 0.12);
}

.hero__visual { transform: perspective(1200px) rotateY(-2.5deg) rotateX(1deg); }

.hero__visual::after,
.feature-story__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  box-shadow: inset 0 0 40px rgba(37, 104, 255, 0.18);
}

.hero__visual img,
.feature-story__visual img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.hero__visual figcaption {
  position: absolute;
  right: 18px;
  bottom: 16px;
  z-index: 1;
  padding: 7px 10px;
  color: #dfe8ff;
  background: rgba(3, 7, 24, 0.86);
  border-left: 2px solid var(--blue);
  font-size: 0.73rem;
}

.promise {
  padding: 82px 24px 92px;
  text-align: center;
  border-block: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(6, 15, 52, 0.34), rgba(25, 20, 72, 0.55), rgba(6, 15, 52, 0.34));
}

.promise h2 {
  max-width: 1000px;
  margin: 6px auto 24px;
  font-size: clamp(2rem, 4vw, 3.8rem);
  line-height: 1.17;
  letter-spacing: -0.05em;
}

.promise p {
  max-width: 800px;
  margin: 0 auto;
  color: var(--muted);
}

.difference,
.capabilities,
.workflow,
.scenarios,
.faq { padding: 120px 0; }

.section-heading {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 38px;
  align-items: start;
  margin-bottom: 56px;
}

.section-index {
  color: #7588ff;
  font-size: 2.3rem;
  font-weight: 820;
  line-height: 1;
  letter-spacing: -0.04em;
}

.section-heading h2,
.moti h2,
.feature-story h2,
.self-service h2,
.contact h2 {
  margin: 0;
  font-size: clamp(2.15rem, 4.1vw, 4rem);
  line-height: 1.12;
  letter-spacing: -0.055em;
}

.section-heading > div > p,
.moti__copy > p,
.feature-story__copy > p,
.self-service > div > p,
.contact__intro > p {
  max-width: 760px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.01rem;
  line-height: 1.82;
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.comparison-card {
  min-height: 510px;
  padding: 44px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.comparison-card--problem { background: rgba(9, 13, 36, 0.62); }

.comparison-card--answer {
  background: linear-gradient(145deg, rgba(18, 37, 97, 0.82), rgba(31, 18, 73, 0.68));
}

.comparison-card h3 { margin: 0 0 38px; font-size: 1.55rem; }

.comparison-card ul,
.feature-story ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.comparison-card li {
  padding: 20px 0;
  color: var(--muted);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.comparison-card li:first-child { border-top: 0; }

.comparison-card strong { color: #f3f5ff; }

.moti {
  min-height: 680px;
  padding: 90px 76px;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(460px, 1.1fr);
  gap: 70px;
  align-items: center;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background:
    radial-gradient(circle at 90% 10%, rgba(72, 101, 255, 0.25), transparent 26rem),
    linear-gradient(135deg, rgba(13, 26, 76, 0.96), rgba(32, 18, 72, 0.92));
}

.moti__copy .section-index,
.feature-story__copy .section-index,
.self-service .section-index { display: block; margin-bottom: 28px; }

.moti-panel {
  padding: 26px;
  border: 1px solid rgba(112, 166, 255, 0.5);
  background: rgba(5, 9, 29, 0.88);
  box-shadow: 0 24px 70px rgba(15, 25, 99, 0.38);
}

.moti-panel__header {
  display: flex;
  align-items: center;
  gap: 13px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.moti-panel__header div { display: grid; }
.moti-panel__header small { color: var(--muted-soft); }

.moti-orb {
  width: 38px;
  height: 38px;
  display: block;
  border-radius: 50%;
  background: radial-gradient(circle at 34% 28%, #fff 0 7%, #68c8ff 14%, #5962ff 46%, #d143e7 100%);
  box-shadow: 0 0 30px rgba(98, 106, 255, 0.5);
}

.moti-message,
.moti-answer {
  margin-top: 22px;
  padding: 18px 20px;
}

.moti-message {
  margin-right: 42px;
  background: rgba(30, 45, 99, 0.84);
}

.moti-message p { margin: 0 0 5px; font-weight: 750; }
.moti-message span { color: #bac4e2; font-size: 0.88rem; }

.moti-answer {
  margin-left: 42px;
  color: #fff;
  background: linear-gradient(110deg, rgba(44, 97, 213, 0.86), rgba(109, 52, 187, 0.86));
}

.moti-brief {
  margin-top: 22px;
  border-top: 1px solid var(--line);
}

.moti-brief > div {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 20px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.moti-brief span { color: var(--muted-soft); font-size: 0.82rem; }
.moti-brief strong { font-size: 0.91rem; }
.moti-panel__note { margin: 18px 0 0; color: var(--muted-soft); font-size: 0.8rem; }

.capability-map {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.capability-map article {
  min-height: 300px;
  padding: 36px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(145deg, rgba(14, 23, 64, 0.66), rgba(7, 11, 33, 0.4));
}

.capability-map article > span {
  color: #7187ff;
  font-size: 1.12rem;
  font-weight: 800;
}

.capability-map h3 {
  max-width: 450px;
  margin: 52px 0 13px;
  font-size: 1.4rem;
  line-height: 1.3;
}

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

.feature-story {
  min-height: 700px;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  gap: 72px;
  align-items: center;
  padding-block: 86px;
  border-top: 1px solid var(--line);
}

.feature-story--reverse .feature-story__visual { order: 2; }
.feature-story--reverse .feature-story__copy { order: 1; }

.feature-story__copy li {
  position: relative;
  padding: 17px 0 17px 24px;
  color: #c0c7df;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.feature-story__copy li:first-child { margin-top: 30px; }

.feature-story__copy li::before {
  content: "";
  width: 7px;
  height: 7px;
  position: absolute;
  left: 2px;
  top: 27px;
  background: linear-gradient(135deg, var(--blue), var(--violet));
  box-shadow: 0 0 12px rgba(78, 146, 255, 0.7);
}

.workflow { border-top: 1px solid var(--line); }

.workflow-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.workflow-steps li {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 38px;
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
}

.workflow-steps li > span {
  color: #7187ff;
  font-size: 2rem;
  font-weight: 820;
}

.workflow-steps h3 { margin: 0 0 7px; font-size: 1.35rem; }
.workflow-steps p { max-width: 800px; margin: 0; color: var(--muted); }

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.scenario-grid article {
  min-height: 310px;
  padding: 40px;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(145deg, rgba(15, 24, 66, 0.68), rgba(8, 12, 36, 0.38));
}

.scenario-grid h3 { margin: 0 0 36px; font-size: 1.5rem; }
.scenario-grid p { margin: 0; color: var(--muted); }
.scenario-grid strong { margin-top: auto; padding-top: 28px; color: #d8def4; font-size: 0.88rem; }

.self-service {
  min-height: 430px;
  padding: 72px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 58px;
  align-items: end;
  border: 1px solid var(--line-strong);
  background:
    radial-gradient(circle at 100% 0%, rgba(70, 93, 255, 0.22), transparent 24rem),
    linear-gradient(120deg, rgba(9, 27, 76, 0.98), rgba(38, 20, 85, 0.92));
}

.self-service__actions {
  max-width: 320px;
  justify-content: flex-end;
}

.self-service__actions .button { width: 100%; }

.faq { border-top: 1px solid var(--line); }

.faq-list { margin-left: 148px; }

.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }

.faq summary {
  padding: 25px 46px 25px 0;
  cursor: pointer;
  font-size: 1.08rem;
  font-weight: 700;
}

.faq details p {
  max-width: 830px;
  margin: 0 0 30px;
  color: var(--muted);
}

.contact {
  margin-top: 18px;
  padding: 76px;
  display: grid;
  grid-template-columns: minmax(280px, 0.7fr) minmax(460px, 1.3fr);
  gap: 72px;
  align-items: start;
  border: 1px solid rgba(87, 145, 255, 0.42);
  background: linear-gradient(110deg, rgba(6, 23, 71, 0.98), rgba(38, 21, 89, 0.94));
  box-shadow: 0 30px 90px rgba(32, 41, 162, 0.2);
}

.contact__intro .section-index { display: block; margin-bottom: 28px; }

.contact__direct {
  margin-top: 38px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.contact__direct p { margin: 0 0 4px; color: var(--muted-soft); font-size: 0.82rem; }
.contact__direct a { color: #c9d7ff; font-weight: 750; }

.contact-form { display: grid; gap: 22px; }

.contact-form__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.contact-form label { display: grid; gap: 8px; }
.contact-form label > span { color: #cbd3ed; font-size: 0.86rem; font-weight: 700; }

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(140, 169, 255, 0.28);
  border-radius: 0;
  outline: none;
  color: #f5f7ff;
  background: rgba(4, 9, 31, 0.68);
  font: inherit;
  transition: border-color 150ms ease, background 150ms ease;
}

.contact-form input,
.contact-form select { min-height: 50px; padding: 0 15px; }
.contact-form textarea { min-height: 142px; padding: 13px 15px; resize: vertical; }
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: #7782a6; }

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: #63bfff;
  background: rgba(8, 16, 51, 0.92);
}

.contact-form select { color-scheme: dark; }

.contact-form__footer {
  align-items: center;
  justify-content: space-between;
}

.contact-form__footer p { max-width: 360px; margin: 0; color: var(--muted-soft); font-size: 0.8rem; }
.contact-form__footer .button { flex: 0 0 auto; cursor: pointer; }
.contact-form__footer .button:disabled { cursor: wait; opacity: 0.62; transform: none; }
.contact-form__status { min-height: 26px; margin: -8px 0 0; color: #8fd4ff; font-size: 0.9rem; }
.contact-form__status[data-state="error"] { color: #ffb2c0; }

.contact-form__honeypot {
  width: 1px;
  height: 1px;
  position: absolute;
  overflow: hidden;
  clip-path: inset(50%);
}

.text-link { color: #aebcff; font-size: 0.9rem; text-align: right; }

footer {
  min-height: 190px;
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 42px;
  color: #8993b3;
  font-size: 0.84rem;
}

footer p { margin: 0; }
footer div { text-align: center; }
footer div a { color: #b6c2e8; }
.brand--footer { color: #fff; }

@media (max-width: 1080px) {
  .site-header nav { display: none; }
  .header-cta { margin-left: auto; }
  .hero { grid-template-columns: 1fr; }
  .hero__copy { max-width: 820px; }
  .hero__visual { transform: none; }
  .moti { grid-template-columns: 1fr; }
  .moti__copy { max-width: 850px; }
  .feature-story { grid-template-columns: 1fr; }
  .feature-story--reverse .feature-story__visual,
  .feature-story--reverse .feature-story__copy { order: initial; }
}

@media (max-width: 760px) {
  .section-shell,
  .site-header,
  .hero { width: min(100% - 28px, 1180px); }

  .site-header { min-height: 70px; }
  .brand { font-size: 1.2rem; }
  .header-cta { min-height: 38px; padding-inline: 13px; font-size: 0.83rem; }
  .hero { min-height: auto; padding: 60px 0 72px; gap: 46px; }
  .hero h1 { font-size: clamp(2.65rem, 11.4vw, 3.45rem); }
  .hero__lead { font-size: 1rem; }
  .hero__actions { flex-direction: column; }
  .hero__actions .button { width: 100%; }
  .hero__visual figcaption { display: none; }
  .promise { padding: 66px 20px 72px; }
  .difference,
  .capabilities,
  .workflow,
  .scenarios,
  .faq { padding: 86px 0; }
  .section-heading { grid-template-columns: 1fr; gap: 23px; margin-bottom: 40px; }
  .section-index { font-size: 1.7rem; }
  .section-heading h2,
  .moti h2,
  .feature-story h2,
  .self-service h2,
  .contact h2 { font-size: 2.35rem; }
  .comparison-grid,
  .capability-map,
  .scenario-grid { grid-template-columns: 1fr; }
  .comparison-card { min-height: auto; padding: 30px 24px; }
  .comparison-card h3 { margin-bottom: 22px; }
  .moti { min-height: auto; padding: 60px 22px 24px; gap: 40px; }
  .moti-panel { padding: 18px; }
  .moti-message { margin-right: 18px; }
  .moti-answer { margin-left: 18px; }
  .moti-brief > div { grid-template-columns: 1fr; gap: 4px; }
  .capability-map article { min-height: 260px; padding: 28px 24px; }
  .capability-map h3 { margin-top: 36px; }
  .feature-story { min-height: auto; gap: 40px; padding: 74px 0; }
  .workflow-steps li { grid-template-columns: 48px 1fr; gap: 18px; padding: 28px 0; }
  .workflow-steps li > span { font-size: 1.5rem; }
  .scenario-grid article { min-height: 270px; padding: 30px 24px; }
  .self-service,
  .contact { min-height: auto; padding: 56px 24px; grid-template-columns: 1fr; gap: 46px; align-items: start; }
  .self-service__actions,
  .contact-form__footer { width: 100%; max-width: none; justify-content: flex-start; }
  .self-service__actions .button,
  .contact-form__footer .button { width: 100%; }
  .contact-form__grid { grid-template-columns: 1fr; }
  .text-link { width: 100%; text-align: center; }
  .faq-list { margin-left: 0; }
  .faq summary { padding-right: 16px; }
  footer { min-height: 240px; grid-template-columns: 1fr; gap: 10px; align-content: center; }
  footer div { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button,
  .site-header nav a,
  .text-link { transition: none; }
}