:root {
  --primary: #f05a3c;
  --primary-deep: #c83f2a;
  --tech: #087f8c;
  --tech-deep: #075b67;
  --accent: #ffb547;
  --background: #fff8f3;
  --surface: #ffffff;
  --text: #24333d;
  --muted: #65727c;
  --line: #eadfd7;
  --shadow: 0 18px 48px rgba(127, 69, 48, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: hidden;
  color: var(--text);
  background: var(--surface);
  font: 16px/1.7 "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.container { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }
.skip-link {
  position: fixed;
  top: -80px;
  left: 16px;
  z-index: 100;
  padding: 10px 16px;
  color: #fff;
  background: var(--tech-deep);
  border-radius: 10px;
}
.skip-link:focus { top: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(234, 223, 215, .9);
  background: rgba(255, 252, 249, .94);
  box-shadow: 0 8px 30px rgba(36, 51, 61, .04);
  backdrop-filter: blur(14px);
}
.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.brand { width: 270px; height: 58px; display: flex; align-items: center; overflow: hidden; }
.brand img { width: auto; max-width: 100%; height: auto; max-height: 100%; object-fit: contain; object-position: left center; }
.site-nav { display: flex; align-items: center; gap: 26px; color: #41505a; font-weight: 700; }
.site-nav a { position: relative; padding-block: 10px; }
.site-nav a:not(.nav-action)::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 4px;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: transform .2s ease;
}
.site-nav a:hover, .site-nav a:focus-visible { color: var(--primary-deep); }
.site-nav a:hover::after, .site-nav a:focus-visible::after { transform: scaleX(1); }
.nav-action {
  padding: 10px 19px !important;
  color: #fff !important;
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(240, 90, 60, .2);
}
.menu-toggle { display: none; width: 44px; height: 44px; padding: 10px; border: 0; background: transparent; cursor: pointer; }
.menu-toggle span { display: block; height: 2px; margin: 5px 0; background: var(--tech-deep); }

.hero {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: minmax(300px, .82fr) minmax(0, 1.35fr);
  gap: clamp(40px, 7vw, 86px);
  align-items: center;
  min-height: 620px;
  padding-block: 70px;
}
.hero::before {
  content: "";
  position: absolute;
  z-index: -2;
  top: 0;
  right: calc(50% - 50vw);
  bottom: 0;
  left: calc(50% - 50vw);
  background:
    linear-gradient(rgba(8, 127, 140, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(8, 127, 140, .045) 1px, transparent 1px),
    radial-gradient(circle at 78% 22%, rgba(255, 181, 71, .2), transparent 30%),
    linear-gradient(125deg, #fffaf6 0%, #fff3e9 48%, #eefbfa 100%);
  background-size: 32px 32px, 32px 32px, auto, auto;
}
.hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  right: -56px;
  bottom: 54px;
  width: 210px;
  height: 210px;
  border: 1px solid rgba(8, 127, 140, .18);
  border-radius: 50%;
  box-shadow: 0 0 0 34px rgba(8, 127, 140, .04), 0 0 0 68px rgba(240, 90, 60, .035);
}
.login-entry {
  position: relative;
  overflow: hidden;
  padding: 30px;
  background: rgba(255, 255, 255, .93);
  border: 1px solid #efdbcf;
  border-radius: 22px;
  box-shadow: var(--shadow);
}
.login-entry::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--tech));
}
.login-entry h2 { margin: 8px 0 10px; color: var(--tech-deep); font-size: 25px; line-height: 1.35; }
.login-entry p { margin: 0 0 20px; color: var(--muted); }
.entry-points { margin: 22px 0 0; padding: 18px 0 0; list-style: none; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.entry-points li { position: relative; padding: 5px 0 5px 20px; }
.entry-points li::before { content: "✓"; position: absolute; left: 0; color: var(--tech); font-weight: 900; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--primary-deep);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .1em;
}
.eyebrow::before { content: ""; width: 18px; height: 3px; background: var(--tech); border-radius: 99px; }
.hero-content h1 {
  max-width: 760px;
  margin: 14px 0 20px;
  color: var(--tech-deep);
  font-size: clamp(38px, 5vw, 62px);
  line-height: 1.14;
  letter-spacing: -.035em;
}
.hero-lead { max-width: 680px; margin: 0; color: var(--muted); font-size: 19px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-weight: 800;
  transition: transform .2s, box-shadow .2s;
}
.button:hover { transform: translateY(-2px); box-shadow: 0 11px 25px rgba(240, 90, 60, .2); }
.button:focus-visible, button:focus-visible, a:focus-visible { outline: 3px solid rgba(255, 181, 71, .68); outline-offset: 3px; }
.button-primary { color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-deep)); }
.button-secondary { color: var(--tech-deep); background: #eaf8f7; border-color: #b9e0df; }
.button-outline { color: var(--tech-deep); border-color: #a9d8d6; background: #fff; }
.button-block { width: 100%; margin-top: 10px; }
.hero-note { display: flex; gap: 12px; margin-top: 34px; padding: 16px 18px; color: var(--muted); background: rgba(255,255,255,.7); border-left: 4px solid var(--accent); border-radius: 10px; }
.hero-note strong { flex: 0 0 auto; color: var(--tech-deep); }

.section { padding-block: 88px; }
.section-soft { background: var(--background); }
.product-showcase {
  position: relative;
  background:
    radial-gradient(circle at 5% 10%, rgba(240, 90, 60, .08), transparent 23%),
    linear-gradient(180deg, #fff 0%, #fffaf6 100%);
  border-top: 1px solid #f5e5da;
  border-bottom: 1px solid #f5e5da;
}
.section-heading { max-width: 720px; margin-bottom: 38px; }
.section-heading h2, .cta-inner h2 { margin: 8px 0 12px; color: var(--tech-deep); font-size: clamp(30px, 4vw, 44px); line-height: 1.25; }
.section-heading p { margin: 0; color: var(--muted); }
.heading-row { max-width: none; display: flex; align-items: end; justify-content: space-between; gap: 30px; }
.text-link { flex: 0 0 auto; color: var(--primary-deep); font-weight: 800; }
.text-link span { color: var(--tech); }
.price-notice { margin: -18px 0 28px; padding: 12px 16px; color: #75471c; background: #fff4dc; border: 1px solid #f1d39b; border-radius: 12px; }

.product-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.product-card {
  position: relative;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 9px 26px rgba(76, 55, 44, .07);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.product-card::before { content: ""; position: absolute; z-index: 2; top: 0; right: 0; left: 0; height: 4px; background: linear-gradient(90deg, var(--primary), var(--accent), var(--tech)); }
.product-card:hover { transform: translateY(-6px); border-color: #e7c4b4; box-shadow: var(--shadow); }
.product-card img { width: 100%; height: auto; aspect-ratio: 1 / 1; object-fit: contain; background: #fff; }
.product-info { padding: 17px; border-top: 1px solid #f2e9e3; }
.product-info h3 { margin: 0; color: var(--tech-deep); font-size: 17px; line-height: 1.4; }
.product-info p { margin: 4px 0 10px; color: var(--muted); font-size: 14px; }
.product-info strong { color: var(--primary-deep); font-size: 17px; }

.feature-grid, .scenario-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.feature-card, .scenario-grid article { padding: 24px; background: #fff; border: 1px solid var(--line); border-radius: 17px; }
.feature-card { box-shadow: 0 9px 24px rgba(36, 51, 61, .045); }
.feature-card > span { width: 44px; height: 44px; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, var(--tech), var(--tech-deep)); border-radius: 13px; font-weight: 900; }
.feature-card:nth-child(even) > span { background: linear-gradient(135deg, var(--primary), var(--primary-deep)); }
.feature-card h3, .scenario-grid h3, .capability-grid h3 { margin: 18px 0 8px; color: var(--tech-deep); font-size: 19px; }
.feature-card p, .scenario-grid p, .capability-grid p { margin: 0; color: var(--muted); }
.scenario-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.scenario-grid article { position: relative; padding-left: 28px; border-left: 4px solid var(--primary); }
.scenario-grid article:nth-child(3n+2) { border-left-color: var(--accent); }
.scenario-grid article:nth-child(3n) { border-left-color: var(--tech); }

.process-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; margin: 0; padding: 0; list-style: none; }
.process-list li { position: relative; padding: 24px; background: #fff; border: 1px solid var(--line); border-radius: 17px; }
.process-list li::after { content: ""; position: absolute; top: 44px; right: -18px; width: 18px; border-top: 1px dashed rgba(8, 127, 140, .5); }
.process-list li:last-child::after { display: none; }
.process-list li > span { width: 44px; height: 44px; display: grid; place-items: center; color: #fff; background: var(--primary); border-radius: 13px; font-weight: 900; }
.process-list h3 { margin: 17px 0 7px; color: var(--tech-deep); }
.process-list p { margin: 0; color: var(--muted); }

.section-dark { color: rgba(255,255,255,.82); background: linear-gradient(135deg, #075b67 0%, #073d49 60%, #482e2a 100%); }
.eyebrow-light { color: #ffd183; }
.eyebrow-light::before { background: #ffb547; }
.section-dark h2 { margin: 8px 0 16px; color: #fff; font-size: clamp(30px, 4vw, 44px); line-height: 1.25; }
.button-light { color: var(--tech-deep); background: #fff; }
.capability-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 70px; align-items: center; }
.capability-layout > div > p { margin-bottom: 26px; }
.capability-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.capability-grid article { padding: 22px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16); border-radius: 15px; }
.capability-grid article:nth-child(2), .capability-grid article:nth-child(3) { border-color: rgba(255, 181, 71, .35); }
.capability-grid h3 { margin-top: 0; color: #fff; }
.capability-grid p { color: rgba(255,255,255,.74); }

.notes-layout, .faq-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; align-items: start; }
.check-list { margin: 0; padding: 0; list-style: none; }
.check-list li { padding: 18px 20px; border-bottom: 1px solid var(--line); }
.check-list li:nth-child(odd) { background: #fffbf8; }
.check-list strong { color: var(--tech-deep); }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item button { width: 100%; min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 16px 4px; color: var(--tech-deep); background: transparent; border: 0; text-align: left; font-weight: 800; cursor: pointer; }
.faq-item button span { color: var(--primary); font-size: 24px; }
.faq-item > div { padding: 0 4px 18px; color: var(--muted); }
.faq-item p { margin: 0; }

.cta-section { padding-block: 58px; color: #fff; background: linear-gradient(110deg, var(--primary-deep), var(--primary) 52%, #e98b43); }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.cta-inner h2 { color: #fff; }
.cta-inner p { margin: 0; color: rgba(255,255,255,.86); }
.site-footer { padding-top: 58px; color: rgba(255,255,255,.72); background: #13353d; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .7fr 1fr; gap: 60px; padding-bottom: 38px; }
.footer-grid h2 { margin: 0 0 12px; color: #fff; font-size: 18px; }
.footer-grid p { margin: 0; }
.footer-grid a { display: block; width: fit-content; padding: 4px 0; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-block: 18px; border-top: 1px solid rgba(255,255,255,.12); font-size: 14px; }
.back-to-top { position: fixed; right: 22px; bottom: 22px; z-index: 40; width: 48px; height: 48px; color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-deep)); border: 0; border-radius: 15px; box-shadow: var(--shadow); cursor: pointer; }

@media (max-width: 960px) {
  .site-nav { gap: 14px; font-size: 14px; }
  .hero { grid-template-columns: .82fr 1.18fr; gap: 36px; }
  .feature-grid, .product-grid, .process-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .capability-layout, .notes-layout, .faq-layout { gap: 38px; }
  .process-list li::after { display: none; }
}

@media (max-width: 720px) {
  .container { width: min(100% - 28px, 1160px); }
  .header-inner { min-height: 68px; }
  .brand { width: 218px; height: 50px; }
  .menu-toggle { display: block; }
  .site-nav { position: absolute; top: 68px; left: 14px; right: 14px; display: none; padding: 14px; background: #fff; border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); }
  .site-nav.is-open { display: grid; }
  .site-nav a { min-height: 44px; display: flex; align-items: center; padding: 8px 12px; }
  .hero { min-height: auto; grid-template-columns: 1fr; gap: 26px; padding-block: 42px 56px; }
  .hero-content { order: 1; }
  .login-entry { order: 2; }
  .hero-content h1 { font-size: clamp(35px, 10vw, 48px); }
  .hero::after { right: 0; bottom: 180px; }
  .section { padding-block: 66px; }
  .heading-row, .cta-inner { align-items: flex-start; flex-direction: column; }
  .scenario-grid, .capability-layout, .notes-layout, .faq-layout, .footer-grid { grid-template-columns: 1fr; }
  .footer-grid { gap: 28px; }
}

@media (max-width: 640px) {
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .product-info { padding: 12px; }
  .product-info h3 { font-size: 15px; }
  .product-info p { font-size: 13px; }
  .product-info strong { font-size: 15px; }
  .feature-grid, .process-list, .capability-grid { grid-template-columns: 1fr; }
  .hero-actions { display: grid; }
  .hero-note { align-items: flex-start; flex-direction: column; }
  .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}