:root {
  --primary: #155eef;
  --primary-dark: #0f3fa8;
  --secondary: #00a6a6;
  --orange: #ff8a00;
  --bg: #f5f8ff;
  --text: #13213a;
  --muted: #5c6b82;
  --line: #e3eaf5;
  --card: #ffffff;
  --dark: #071428;
  --shadow: 0 18px 48px rgba(19, 42, 87, 0.12);
  --section-pad: 76px;
  --section-pad-mobile: 54px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.75;
}

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

button,
input,
select,
textarea {
  font: inherit;
}

.container {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
}

.topbar {
  background: #061225;
  color: rgba(255,255,255,0.82);
  font-size: 14px;
}

.topbar .container {
  min-height: 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(227,234,245,0.95);
}

.nav-wrap {
  min-height: 74px;
  display: flex;
  align-items: center;
  gap: 22px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  white-space: nowrap;
}

.logo-mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 900;
  box-shadow: 0 12px 26px rgba(21,94,239,0.24);
}

.logo small {
  display: block;
  color: var(--muted);
  font-weight: 500;
  font-size: 12px;
  margin-top: -4px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 24px;
  color: #273853;
  font-size: 15px;
  margin-left: auto;
}

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

.header-call {
  flex: 0 0 auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 800;
  cursor: pointer;
  transition: 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 14px 30px rgba(21,94,239,0.24);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 38px rgba(21,94,239,0.3);
}

.btn-white {
  background: #fff;
  color: var(--primary);
  border-color: #d8e3ff;
}

.btn-white:hover {
  border-color: var(--primary);
}

.btn-line {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border-color: rgba(255,255,255,0.34);
}

.btn-line:hover {
  background: rgba(255,255,255,0.18);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 82px 0 70px;
  background:
    radial-gradient(circle at 10% 18%, rgba(21,94,239,0.15), transparent 32%),
    radial-gradient(circle at 90% 16%, rgba(0,166,166,0.16), transparent 30%),
    linear-gradient(180deg, #f7faff 0%, #fff 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 46px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  border-radius: 999px;
  background: #eaf1ff;
  color: var(--primary-dark);
  font-weight: 800;
  font-size: 14px;
  margin-bottom: 22px;
}

.hero h1 {
  margin: 0;
  color: #071428;
  font-size: clamp(36px, 5vw, 60px);
  line-height: 1.12;
  letter-spacing: -1.4px;
}

.hero-desc {
  margin: 24px 0 28px;
  max-width: 720px;
  color: var(--muted);
  font-size: 18px;
}

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

.hero-note {
  margin-top: 18px;
  color: #40516a;
  font-size: 14px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.hero-tags span {
  background: #fff;
  border: 1px solid var(--line);
  color: #334762;
  border-radius: 999px;
  padding: 7px 13px;
  font-size: 14px;
  font-weight: 600;
}

.hero-panel {
  background: rgba(255,255,255,0.84);
  border: 1px solid rgba(227,234,245,0.96);
  border-radius: 28px;
  padding: 22px;
  box-shadow: var(--shadow);
}

.dashboard {
  background: #071428;
  color: #fff;
  border-radius: 22px;
  padding: 24px;
  overflow: hidden;
}

.dash-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: rgba(255,255,255,0.68);
  font-size: 14px;
  margin-bottom: 22px;
}

.dot-group {
  display: flex;
  gap: 7px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.28);
}

.dash-title {
  margin: 0 0 10px;
  font-size: 26px;
  line-height: 1.3;
}

.dash-text {
  color: rgba(255,255,255,0.7);
  margin: 0 0 22px;
  font-size: 15px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.metric {
  border-radius: 16px;
  padding: 16px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
}

.metric strong {
  display: block;
  font-size: 24px;
  margin-bottom: 2px;
}

.metric span {
  display: block;
  color: rgba(255,255,255,0.64);
  font-size: 13px;
}

.quick-card {
  margin-top: 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 20px;
}

.quick-card h3 {
  margin: 0 0 10px;
  font-size: 20px;
  color: #071428;
}

.quick-card p {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 14px;
}

.section {
  padding: var(--section-pad) 0;
}

.section.alt {
  background: var(--bg);
}

.section-head {
  max-width: 820px;
  margin: 0 auto 42px;
  text-align: center;
}

.section-kicker {
  color: var(--primary);
  font-weight: 900;
  letter-spacing: 0.6px;
  margin-bottom: 8px;
}

.section h2 {
  margin: 0;
  color: #071428;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.25;
  letter-spacing: -0.8px;
}

.section-intro {
  color: var(--muted);
  margin: 16px auto 0;
  font-size: 17px;
  max-width: 780px;
}

.pain-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.pain-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 26px;
  box-shadow: 0 12px 30px rgba(19,42,87,0.05);
}

.pain-card b {
  display: inline-flex;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  color: #fff;
  background: linear-gradient(135deg, var(--orange), #ff5c35);
  margin-bottom: 16px;
}

.pain-card h3 {
  margin: 0 0 10px;
  font-size: 21px;
}

.pain-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15.5px;
}

.solution-flow {
  margin-top: 28px;
  background: #071428;
  color: #fff;
  border-radius: 24px;
  padding: 28px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}

.flow-step {
  border-radius: 16px;
  padding: 18px 14px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  text-align: center;
}

.flow-step strong {
  display: block;
  margin-bottom: 5px;
  color: #fff;
}

.flow-step span {
  display: block;
  color: rgba(255,255,255,0.64);
  font-size: 13px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.feature-block {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 28px;
  box-shadow: 0 12px 30px rgba(19,42,87,0.05);
  transition: 0.2s ease;
}

.feature-block:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.feature-top {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.feature-number {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(21,94,239,0.12), rgba(0,166,166,0.12));
  color: var(--primary);
  font-weight: 900;
  flex: 0 0 auto;
}

.feature-block h3 {
  margin: 0;
  font-size: 22px;
  color: #071428;
  line-height: 1.35;
}

.feature-block p {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 15.5px;
}

.feature-meta {
  background: #f6f9ff;
  border: 1px solid #e4ecff;
  border-radius: 14px;
  padding: 13px 15px;
  color: #334762;
  font-size: 14.5px;
  margin-bottom: 16px;
}

.feature-meta strong {
  color: #071428;
}

.feature-points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 9px 16px;
}

.feature-points li {
  position: relative;
  padding-left: 18px;
  color: #334762;
  font-size: 14.5px;
}

.feature-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--secondary);
}

.feature-cta-card {
  margin-top: 28px;
  background:
    radial-gradient(circle at 16% 18%, rgba(0,166,166,0.22), transparent 32%),
    linear-gradient(135deg, #071428, #0d3ea5);
  color: #fff;
  border-radius: 24px;
  padding: 32px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
}

.feature-cta-card h3 {
  margin: 0 0 8px;
  color: #fff;
  font-size: 24px;
  line-height: 1.35;
}

.feature-cta-card p {
  margin: 0;
  color: rgba(255,255,255,0.72);
  max-width: 760px;
}

.scenario-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.scenario-card {
  border-radius: 22px;
  padding: 30px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 12px 30px rgba(19,42,87,0.05);
}

.scenario-card h3 {
  margin: 0 0 12px;
  font-size: 24px;
}

.scenario-card p {
  margin: 0 0 18px;
  color: var(--muted);
}

.list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.list li {
  position: relative;
  padding-left: 20px;
  color: #334762;
  font-size: 15px;
}

.list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--secondary);
}

.industry-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.industry-tags span {
  background: #fff;
  border: 1px solid var(--line);
  color: #32465f;
  border-radius: 999px;
  padding: 10px 16px;
  font-weight: 800;
  font-size: 15px;
}

.process {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
  counter-reset: step;
}

.process-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 12px 30px rgba(19,42,87,0.05);
}

.process-item::before {
  counter-increment: step;
  content: "0" counter(step);
  display: inline-flex;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: #eaf1ff;
  color: var(--primary);
  font-weight: 900;
  margin-bottom: 16px;
}

.process-item h3 {
  margin: 0 0 8px;
  font-size: 19px;
}

.process-item p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.value-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 26px;
  box-shadow: 0 12px 30px rgba(19,42,87,0.05);
  transition: 0.2s ease;
}

.value-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(21,94,239,0.12), rgba(0,166,166,0.12));
  color: var(--primary);
  font-weight: 900;
  margin-bottom: 16px;
}

.value-card h3 {
  margin: 0 0 10px;
  font-size: 20px;
}

.value-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.cta {
  background:
    radial-gradient(circle at 18% 16%, rgba(0,166,166,0.28), transparent 34%),
    linear-gradient(135deg, #071428, #0d3ea5);
  color: #fff;
  border-radius: 28px;
  padding: 44px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
  overflow: hidden;
}

.cta h2 {
  color: #fff;
  margin: 0 0 12px;
}

.cta p {
  margin: 0;
  max-width: 760px;
  color: rgba(255,255,255,0.72);
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 24px;
  align-items: start;
}

.contact-card,
.form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 30px;
  box-shadow: 0 12px 30px rgba(19,42,87,0.05);
}

.contact-card h3,
.form-card h3 {
  margin: 0 0 16px;
  font-size: 25px;
  color: #071428;
}

.contact-summary {
  color: var(--muted);
  margin: 0 0 18px;
  font-size: 15px;
}

.phone-card {
  display: block;
  padding: 18px;
  border-radius: 18px;
  background: linear-gradient(135deg, #155eef, #0f3fa8);
  color: #fff;
  margin-bottom: 16px;
}

.phone-card span {
  display: block;
  color: rgba(255,255,255,0.72);
  font-size: 14px;
  margin-bottom: 4px;
}

.phone-card strong {
  display: block;
  font-size: 26px;
  line-height: 1.2;
}

.contact-row {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  color: #334762;
}

.contact-row:last-child {
  border-bottom: 0;
}

.contact-row strong {
  display: block;
  color: #071428;
  margin-bottom: 2px;
}

.form {
  display: grid;
  gap: 14px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.form input,
.form select,
.form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 15px;
  outline: none;
  background: #fff;
  color: var(--text);
}

.form textarea {
  min-height: 138px;
  resize: vertical;
}

.form input:focus,
.form select:focus,
.form textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(21,94,239,0.08);
}

.form-tip {
  color: var(--muted);
  font-size: 13px;
  margin-top: 10px;
  text-align: center;
}

.form-tip a {
  color: var(--primary);
  font-weight: 800;
}

.result {
  border-radius: 14px;
  padding: 13px 15px;
  font-size: 14px;
  line-height: 1.6;
}

.result.ok {
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #047857;
}

.result.err {
  background: #fff1f2;
  border: 1px solid #fecdd3;
  color: #be123c;
}

.footer {
  background: var(--dark);
  color: rgba(255,255,255,0.72);
  padding: 46px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr 0.8fr;
  gap: 30px;
  margin-bottom: 30px;
}

.footer h3,
.footer h4 {
  color: #fff;
  margin: 0 0 14px;
}

.footer p {
  margin: 0;
}

.footer a {
  display: block;
  margin: 8px 0;
  color: rgba(255,255,255,0.72);
  font-size: 14px;
}

.footer a:hover {
  color: #fff;
}

.footer .footer-text {
  display: block;
  margin: 8px 0;
  color: rgba(255,255,255,0.72);
  font-size: 14px;
}

.copyright {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  display: flex;
  justify-content: center;
  text-align: center;
  font-size: 14px;
}

.fixed-call {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 60;
  background: linear-gradient(135deg, var(--orange), #ff5c35);
  color: #fff;
  min-height: 52px;
  padding: 0 20px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  box-shadow: 0 16px 34px rgba(255,92,53,0.28);
}

@media (max-width: 1080px) {
  .nav {
    gap: 18px;
    font-size: 14px;
  }

  .hero-grid,
  .contact-grid,
  .cta,
  .feature-cta-card {
    grid-template-columns: 1fr;
  }

  .process,
  .solution-flow {
    grid-template-columns: repeat(2, 1fr);
  }

  .pain-grid,
  .footer-grid,
  .feature-grid,
  .scenario-grid,
  .value-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 760px) {
  .topbar,
  .nav {
    display: none;
  }

  .nav-wrap {
    min-height: 64px;
    justify-content: space-between;
    gap: 12px;
  }

  .logo {
    display: flex;
    min-width: 0;
  }

  .logo-mark {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    font-size: 14px;
  }

  .logo small {
    display: none;
  }

  .header-call {
    flex: 0 0 auto;
  }

  .header-call.btn {
    min-height: 40px;
    padding: 0 14px;
    font-size: 14px;
  }
}

@media (max-width: 680px) {
  .container {
    width: min(100% - 28px, 1200px);
  }

  .hero {
    padding: 54px 0;
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero-desc {
    font-size: 16px;
  }

  .section {
    padding: var(--section-pad-mobile) 0;
  }

  .section-head {
    margin-bottom: 32px;
  }

  .pain-grid,
  .solution-flow,
  .feature-grid,
  .feature-points,
  .scenario-grid,
  .process,
  .value-grid,
  .footer-grid,
  .metric-grid,
  .form-row {
    grid-template-columns: 1fr;
  }

  .hero-panel,
  .cta,
  .contact-card,
  .form-card,
  .feature-block,
  .pain-card,
  .scenario-card {
    padding: 22px;
  }

  .fixed-call {
    left: 16px;
    right: 16px;
    bottom: 14px;
  }

  body {
    padding-bottom: 72px;
  }
}