:root {
  color: #0b1b3a;
  background: #f6faff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  --blue: #2563ff;
  --blue-2: #2f6bff;
  --blue-3: #1f5cff;
  --ink: #0b1b3a;
  --muted: #5d6b85;
  --line: #dde8f7;
  --soft: #eef5ff;
  --card: #ffffff;
  --shadow: 0 18px 45px rgba(37, 99, 255, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
}

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

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

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

.site-shell {
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(238, 245, 255, 0.92) 0%, #ffffff 23%, #f7fbff 100%);
}

.container {
  width: min(1220px, calc(100% - 48px));
  margin: 0 auto;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 0 max(24px, calc((100vw - 1220px) / 2));
  background: rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid rgba(221, 232, 247, 0.75);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--ink);
  white-space: nowrap;
}

.brand-mark {
  display: inline-grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: #fff;
  font-size: 18px;
  font-weight: 900;
  border-radius: 10px;
  background: linear-gradient(135deg, #1f66ff 0%, #6fb1ff 100%);
  box-shadow: 0 10px 24px rgba(37, 99, 255, 0.22);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 38px;
  font-size: 14px;
  color: #213453;
}

.nav-links a {
  transition: color 0.2s ease;
}

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

.nav-actions,
.hero-actions,
.cta-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease,
    background 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-2) 100%);
  box-shadow: 0 12px 28px rgba(37, 99, 255, 0.24);
}

.btn-ghost,
.btn-outline {
  color: var(--blue);
  background: #fff;
  border-color: #c9daf6;
}

.btn-outline:hover,
.btn-ghost:hover {
  border-color: var(--blue);
  box-shadow: 0 12px 28px rgba(37, 99, 255, 0.1);
}

.btn-lg {
  min-height: 48px;
  padding: 0 28px;
}

.btn-white {
  color: var(--blue);
  background: #fff;
}

.btn-translucent {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.42);
  background: rgba(255, 255, 255, 0.12);
}

.section {
  position: relative;
  padding: 88px 0;
}

.section-soft {
  background:
    radial-gradient(circle at 80% 12%, rgba(106, 165, 255, 0.3), transparent 32%),
    linear-gradient(180deg, #f0f7ff 0%, #ffffff 76%);
}

.section-tint {
  background: linear-gradient(180deg, #f4f9ff 0%, #ffffff 100%);
}

.hero {
  min-height: 740px;
  padding-top: 78px;
  padding-bottom: 98px;
}

.hero-bg {
  position: absolute;
  inset: auto -5vw 0;
  height: 210px;
  opacity: 0.82;
  background:
    radial-gradient(80% 78% at 50% 100%, rgba(170, 211, 255, 0.8), transparent 62%),
    linear-gradient(165deg, transparent 0 50%, rgba(177, 218, 255, 0.52) 51% 57%, transparent 58%),
    linear-gradient(10deg, transparent 0 42%, rgba(205, 231, 255, 0.8) 43% 51%, transparent 52%);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  gap: 64px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 800;
}

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

h1 {
  margin-bottom: 24px;
  color: var(--ink);
  font-size: clamp(42px, 5vw, 68px);
  line-height: 1.13;
  font-weight: 900;
}

h1::after {
  content: "更高效";
  display: block;
  margin-top: 4px;
  color: var(--blue);
}

.hero-text {
  max-width: 560px;
  margin-bottom: 26px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.9;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  max-width: 620px;
  margin-bottom: 34px;
}

.hero-tags span {
  padding: 10px 14px;
  color: #244165;
  font-size: 14px;
  border: 1px solid #dbe8fb;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: 0 8px 22px rgba(62, 120, 212, 0.08);
}

.hero-product {
  position: relative;
  min-height: 430px;
}

.product-window,
.card,
.os-card,
.faq-item,
.client-logo {
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.main-window {
  width: min(100%, 670px);
  margin-left: auto;
  padding: 22px;
  border-radius: 16px;
}

.window-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  color: #25405f;
}

.window-top span {
  width: 42px;
  height: 8px;
  border-radius: 99px;
  background: linear-gradient(90deg, #2f6bff, #dbe8ff);
}

.window-top em {
  padding: 5px 10px;
  color: var(--blue);
  font-size: 12px;
  font-style: normal;
  border-radius: 999px;
  background: #edf5ff;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.metrics div {
  min-height: 92px;
  padding: 18px;
  border: 1px solid #e7effb;
  border-radius: 12px;
  background: linear-gradient(180deg, #ffffff, #f8fbff);
}

.metrics b {
  display: block;
  margin-bottom: 8px;
  color: #10213f;
  font-size: 26px;
}

.metrics span,
.candidate-row small {
  color: #6b7890;
  font-size: 13px;
}

.candidate-list {
  display: grid;
  gap: 12px;
}

.candidate-row {
  display: grid;
  grid-template-columns: 42px 1fr auto auto;
  gap: 12px;
  align-items: center;
  padding: 13px;
  border: 1px solid #e8f0fb;
  border-radius: 12px;
  background: #fff;
}

.avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background:
    linear-gradient(135deg, rgba(47, 107, 255, 0.95), rgba(25, 184, 159, 0.75)),
    #eaf2ff;
}

.candidate-row p {
  margin: 0;
}

.candidate-row strong,
.candidate-row small {
  display: block;
}

.candidate-row b {
  color: #132849;
}

.candidate-row em {
  padding: 5px 9px;
  color: #09a96f;
  font-size: 12px;
  font-style: normal;
  font-weight: 800;
  border-radius: 999px;
  background: #eafaf3;
}

.floating-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid #e2ecfa;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 20px 52px rgba(37, 99, 255, 0.16);
}

.floating-top {
  top: 26px;
  right: -12px;
  padding: 16px 18px;
}

.floating-bottom {
  right: 28px;
  bottom: 14px;
  width: 170px;
  min-height: 118px;
  justify-content: center;
  flex-direction: column;
}

.mini-icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: #fff;
  font-weight: 900;
  border-radius: 10px;
  background: linear-gradient(135deg, #2f6bff, #7fb2ff);
}

.floating-card p {
  margin: 0;
}

.floating-card small {
  display: block;
  margin-top: 3px;
  color: #6b7890;
}

.floating-bottom strong {
  color: var(--blue);
  font-size: 36px;
}

.floating-bottom span {
  color: #5d6b85;
  font-size: 13px;
}

.ring {
  position: absolute;
  width: 82px;
  height: 82px;
  border: 8px solid rgba(37, 99, 255, 0.14);
  border-top-color: var(--blue);
  border-radius: 50%;
}

.section-head {
  max-width: 760px;
  margin: 0 auto 40px;
  text-align: center;
}

.section-head.align-left {
  margin-left: 0;
  text-align: left;
}

h2 {
  margin-bottom: 14px;
  color: var(--ink);
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.25;
  font-weight: 900;
}

.section-head p,
.agent-copy > p,
.faq-title p,
.download-copy p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}

.pain-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.card {
  border-radius: 14px;
}

.pain-card,
.capability-card,
.scenario-card {
  padding: 26px;
}

.line-icon,
.step-badge,
.scenario-card span {
  display: inline-grid;
  min-width: 46px;
  height: 46px;
  place-items: center;
  margin-bottom: 18px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  border-radius: 12px;
  background: linear-gradient(180deg, #edf5ff, #ffffff);
  border: 1px solid #dce9fb;
}

.card h3,
.flow-step h3,
.os-card h3 {
  margin-bottom: 10px;
  color: #122545;
  font-size: 18px;
}

.card p,
.flow-step p,
.feature-list p,
.os-card p {
  margin-bottom: 0;
  color: #68768d;
  font-size: 14px;
  line-height: 1.75;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding: 18px;
  border: 1px solid #e5eefb;
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(238, 245, 255, 0.86), rgba(255, 255, 255, 0.82));
}

.flow {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 22px;
}

.flow-step {
  position: relative;
  text-align: center;
}

.flow-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 31px;
  left: calc(50% + 36px);
  width: calc(100% - 48px);
  border-top: 2px dashed #b7cdf1;
}

.flow-step span {
  position: relative;
  z-index: 1;
  display: inline-grid;
  width: 64px;
  height: 64px;
  place-items: center;
  margin-bottom: 16px;
  color: #fff;
  font-size: 18px;
  font-weight: 900;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), #7fb2ff);
  box-shadow: 0 14px 26px rgba(37, 99, 255, 0.2);
}

.agent-section {
  background:
    radial-gradient(circle at 82% 20%, rgba(210, 232, 255, 0.78), transparent 32%),
    #ffffff;
}

.agent-wrap {
  display: grid;
  grid-template-columns: 0.36fr 0.64fr;
  gap: 34px;
  align-items: center;
}

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

.agent-copy h2 {
  margin-bottom: 18px;
}

.feature-list {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.feature-list div {
  position: relative;
  padding: 18px 18px 18px 52px;
  border: 1px solid #e1ebf8;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.88);
}

.feature-list span {
  position: absolute;
  left: 18px;
  top: 21px;
  width: 18px;
  height: 18px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--blue), #19b89f);
}

.feature-list strong {
  display: block;
  margin-bottom: 5px;
  color: #122545;
}

.agent-image-frame,
.desktop-preview {
  overflow: hidden;
  border: 1px solid #dce8f8;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 24px 55px rgba(37, 99, 255, 0.16);
}

.agent-image-frame img {
  width: 100%;
  height: auto;
}

.download-grid {
  display: grid;
  grid-template-columns: 0.47fr 0.53fr;
  gap: 42px;
  align-items: center;
}

.check-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 0 0 26px;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  color: #253d60;
  line-height: 1.6;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: inset 0 0 0 4px #dfeaff;
}

.os-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.os-card {
  padding: 22px;
  border-radius: 14px;
}

.os-card.active {
  border-color: rgba(37, 99, 255, 0.38);
}

.os-icon {
  display: inline-grid;
  width: 52px;
  height: 52px;
  place-items: center;
  margin-bottom: 14px;
  color: #fff;
  font-size: 13px;
  font-weight: 900;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--blue), #79adff);
}

.os-card p {
  min-height: 48px;
  margin-bottom: 18px;
}

.desktop-preview img {
  width: 100%;
  height: 450px;
  object-fit: cover;
  object-position: 19% 0;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.clients-section {
  padding-top: 40px;
}

.client-note {
  max-width: 720px;
  margin: -18px auto 28px;
  color: #5d6b85;
  text-align: center;
  line-height: 1.8;
}

.client-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.client-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 82px;
  border-radius: 12px;
  filter: grayscale(0.7);
  opacity: 0.82;
  transition:
    filter 0.2s ease,
    opacity 0.2s ease,
    transform 0.2s ease;
}

.client-logo:hover {
  filter: grayscale(0);
  opacity: 1;
  transform: translateY(-2px);
}

.client-logo span {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  color: var(--blue);
  font-weight: 900;
  border-radius: 10px;
  background: #eef5ff;
}

.client-logo strong {
  color: #31445f;
}

.faq-grid {
  display: grid;
  grid-template-columns: 0.34fr 0.66fr;
  gap: 46px;
  align-items: start;
}

.faq-title {
  position: sticky;
  top: 104px;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  overflow: hidden;
  border-radius: 12px;
}

.faq-item button {
  display: flex;
  width: 100%;
  min-height: 64px;
  align-items: center;
  justify-content: space-between;
  padding: 0 22px;
  color: #122545;
  font: inherit;
  font-weight: 800;
  text-align: left;
  background: #fff;
  border: 0;
  cursor: pointer;
}

.faq-item b {
  flex: 0 0 auto;
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  color: var(--blue);
  border-radius: 8px;
  background: #eef5ff;
}

.faq-item p {
  margin: 0;
  padding: 0 22px 22px;
  color: #5d6b85;
  line-height: 1.8;
}

.final-cta {
  padding-top: 78px;
}

.cta-panel {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 30px;
  align-items: center;
  min-height: 230px;
  padding: 42px 58px;
  color: #fff;
  border-radius: 14px;
  background:
    radial-gradient(circle at 83% 20%, rgba(255, 255, 255, 0.32), transparent 25%),
    linear-gradient(135deg, #1f5cff 0%, #3b82ff 100%);
  box-shadow: 0 25px 55px rgba(37, 99, 255, 0.22);
}

.cta-panel h2 {
  color: #fff;
}

.cta-panel p {
  max-width: 700px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.8;
}

.cta-visual {
  justify-self: end;
  display: grid;
  width: 180px;
  height: 180px;
  place-items: center;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 32px;
  background: rgba(255, 255, 255, 0.13);
  transform: rotate(-8deg);
}

.cta-visual span {
  width: 56px;
  height: 72px;
  border-radius: 14px;
  background: linear-gradient(180deg, #fff, rgba(255, 255, 255, 0.58));
}

.cta-visual strong,
.cta-visual p {
  margin: 0;
}

.footer {
  background: #fff;
  border-top: 1px solid #e6eef8;
}

.footer-grid {
  display: grid;
  grid-template-columns: 0.34fr 0.66fr;
  gap: 54px;
  padding: 48px 0 30px;
}

.footer-brand p {
  max-width: 320px;
  margin: 18px 0 0;
  color: #5d6b85;
  font-size: 14px;
  line-height: 1.8;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.footer-links h3 {
  margin-bottom: 14px;
  color: #10213f;
  font-size: 15px;
}

.footer-links a {
  display: block;
  margin-bottom: 10px;
  color: #6b7890;
  font-size: 14px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0 28px;
  color: #7a879b;
  font-size: 13px;
  border-top: 1px solid #edf2fa;
}

@media (max-width: 1080px) {
  .nav-links {
    display: none;
  }

  .hero-grid,
  .agent-wrap,
  .download-grid,
  .faq-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-product {
    min-height: 360px;
  }

  .main-window {
    margin: 0;
  }

  .pain-grid,
  .capability-grid,
  .client-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .flow {
    grid-template-columns: repeat(3, 1fr);
    row-gap: 36px;
  }

  .flow-step:nth-child(3)::after {
    display: none;
  }

  .faq-title {
    position: static;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(100% - 28px, 1220px);
  }

  .nav {
    min-height: 64px;
    padding: 0 14px;
  }

  .brand {
    font-size: 19px;
  }

  .nav-actions .btn-ghost {
    display: none;
  }

  .nav-actions .btn-primary {
    min-height: 36px;
    padding: 0 12px;
    font-size: 12px;
  }

  .section {
    padding: 62px 0;
  }

  .hero {
    min-height: auto;
    padding-top: 52px;
  }

  h1 {
    font-size: 40px;
  }

  .hero-text,
  .section-head p,
  .agent-copy > p,
  .faq-title p {
    font-size: 15px;
  }

  .hero-actions,
  .cta-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-actions .btn,
  .cta-actions .btn {
    width: 100%;
  }

  .hero-product {
    min-height: 0;
  }

  .main-window {
    padding: 14px;
    border-radius: 14px;
  }

  .metrics,
  .pain-grid,
  .capability-grid,
  .scenario-grid,
  .client-grid,
  .os-grid,
  .footer-links {
    grid-template-columns: 1fr;
  }

  .candidate-row {
    grid-template-columns: 34px 1fr auto;
  }

  .candidate-row em {
    display: none;
  }

  .floating-card {
    display: none;
  }

  .capability-grid {
    padding: 12px;
  }

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

  .flow-step {
    display: grid;
    grid-template-columns: 64px 1fr;
    column-gap: 16px;
    text-align: left;
  }

  .flow-step span {
    grid-row: span 2;
  }

  .flow-step:not(:last-child)::after {
    top: 70px;
    left: 31px;
    width: 0;
    height: calc(100% - 24px);
    border-top: 0;
    border-left: 2px dashed #b7cdf1;
  }

  .agent-image-frame img {
    max-width: none;
    width: 920px;
  }

  .agent-image-frame {
    overflow-x: auto;
  }

  .desktop-preview img {
    height: auto;
    object-fit: contain;
  }

  .cta-panel {
    grid-template-columns: 1fr;
    padding: 34px 24px;
  }

  .cta-visual {
    display: none;
  }

  .footer-bottom {
    flex-direction: column;
  }
}