:root {
  --text: #1a2431;
  --muted: #556478;
  --line: #d5dce6;
  --bg: #f4f7fb;
  --dark: #0d1520;
  --primary: #12665a;
  --primary-strong: #0d534a;
  --accent: #e9eff6;
  --gold: #b99552;
  --gold-soft: #efe3c9;
  --white: #ffffff;
  --shadow-soft: 0 14px 36px rgba(11, 20, 34, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 60;
  background: linear-gradient(90deg, #e9c27c 0%, #49a48e 45%, #1e5f8a 100%);
  transform-origin: left center;
  transform: scaleX(0);
  box-shadow: 0 0 18px rgba(73, 164, 142, 0.55);
}

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

.container {
  width: min(1140px, 92%);
  margin: 0 auto;
}

.notice {
  background: #09111c;
  color: #d9e4f3;
  font-size: 13px;
}

.notice-inner {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.notice p {
  margin: 0;
}

.notice a {
  color: #f6d8a5;
  font-weight: 600;
}

.topbar {
  position: fixed;
  top: 42px;
  width: 100%;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid var(--line);
  transition: background 0.25s ease, box-shadow 0.25s ease;
}

.topbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 10px 24px rgba(16, 28, 45, 0.08);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 68px;
}

.brand {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0;
}

.nav {
  display: flex;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 8px;
  border: 1px solid var(--primary);
  background: var(--primary);
  color: var(--white);
  font-size: 15px;
  font-weight: 600;
  transition: 0.2s ease;
}

.btn:hover {
  background: var(--primary-strong);
  border-color: var(--primary-strong);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.9);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.14);
}

.btn-small {
  min-height: 36px;
  padding: 0 14px;
  font-size: 14px;
}

.hero {
  position: relative;
  min-height: 84vh;
  margin-top: 110px;
  display: grid;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.03);
  animation: heroZoom 14s ease-out both;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(105deg, rgba(8, 14, 24, 0.82) 20%, rgba(8, 14, 24, 0.4) 62%),
    linear-gradient(180deg, rgba(8, 14, 24, 0.2) 0%, rgba(8, 14, 24, 0.6) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  color: #ffffff;
  padding: 32px 0;
}

.hero-kicker {
  margin: 0 0 12px;
  font-size: 14px;
  color: #f4deb4;
  font-weight: 600;
}

.hero h1 {
  margin: 0;
  max-width: 860px;
  font-size: clamp(34px, 5.4vw, 58px);
  line-height: 1.14;
  letter-spacing: 0;
}

.hero-text {
  margin: 20px 0 0;
  max-width: 760px;
  font-size: clamp(17px, 2.1vw, 21px);
  color: #dce4f2;
}

.hero-actions {
  margin-top: 30px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-metrics {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  max-width: 900px;
}

.hero-metrics p {
  margin: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.34);
  padding-top: 14px;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.hero-metrics p:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.62);
}

.hero-metrics strong {
  display: block;
  font-size: 19px;
  line-height: 1.2;
}

.hero-metrics span {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  color: #d5deed;
}

.section {
  padding: 88px 0;
}

.section h2 {
  margin: 0 0 12px;
  font-size: clamp(30px, 4vw, 40px);
  line-height: 1.2;
  letter-spacing: 0;
}

.section-lead {
  margin: 0 0 34px;
  color: var(--muted);
  font-size: 18px;
}

.section-light {
  background: var(--white);
}

.section-dark {
  background: var(--dark);
  color: #f0f4fb;
}

.section-accent {
  background: var(--accent);
}

.section-solutions {
  background: linear-gradient(180deg, #f7f9fc 0%, #eef3f9 100%);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.service-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  background: linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
  box-shadow: var(--shadow-soft);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.service-item h3 {
  margin: 0 0 12px;
  font-size: 20px;
  line-height: 1.25;
}

.service-item p {
  margin: 0;
  color: #374559;
}

.service-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 34px rgba(11, 20, 34, 0.12);
  border-color: #bfc9d9;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.solution-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.solution-item img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.solution-item div {
  padding: 18px;
}

.solution-item h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.solution-item p {
  margin: 0;
  color: #405068;
}

.solution-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 34px rgba(11, 20, 34, 0.14);
  border-color: #bdc8d8;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 26px;
}

.process-step {
  border: 1px solid rgba(214, 221, 230, 0.28);
  border-radius: 8px;
  padding: 22px 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.02) 100%);
  font-weight: 600;
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.process-step span {
  display: block;
  margin-bottom: 10px;
  color: #9fd0c2;
  font-size: 13px;
  font-weight: 700;
}

.process-step:hover {
  transform: translateY(-4px);
  border-color: rgba(214, 221, 230, 0.56);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.11) 0%, rgba(255, 255, 255, 0.04) 100%);
}

.section-about {
  background: #fbfcfe;
}

.about-wrap {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 32px;
  align-items: center;
}

.about-wrap p {
  margin: 0;
  color: #374559;
  font-size: 18px;
}

.about-wrap img {
  width: 100%;
  max-height: 380px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow-soft);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.about-wrap img:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 36px rgba(11, 20, 34, 0.15);
}

.contact-wrap p {
  margin: 0 0 14px;
  color: #3f4e64;
  font-size: 17px;
}

.contact-list {
  margin-top: 20px;
  display: grid;
  gap: 10px;
  font-size: 18px;
}

.contact-list a {
  color: #0f4d43;
  font-weight: 700;
}

.contact-btn {
  margin-top: 16px;
}

.footer {
  background: #0b131d;
  color: #d1d8e3;
  padding: 22px 0;
}

.footer p {
  margin: 0;
  font-size: 14px;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.hero-kicker.reveal {
  transition-delay: 0.1s;
}

.hero h1.reveal {
  transition-delay: 0.18s;
}

.hero-text.reveal {
  transition-delay: 0.26s;
}

.hero-actions.reveal {
  transition-delay: 0.34s;
}

.hero-metrics p.reveal:nth-child(1) {
  transition-delay: 0.42s;
}

.hero-metrics p.reveal:nth-child(2) {
  transition-delay: 0.5s;
}

.hero-metrics p.reveal:nth-child(3) {
  transition-delay: 0.58s;
}

@keyframes heroZoom {
  from {
    transform: scale(1.08);
  }
  to {
    transform: scale(1.03);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition-duration: 0ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 980px) {
  .notice-inner {
    min-height: 38px;
    font-size: 12px;
  }

  .nav {
    display: none;
  }

  .topbar {
    top: 38px;
  }

  .hero {
    margin-top: 106px;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
    max-width: 560px;
  }

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

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

  .process-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 640px) {
  .notice-inner {
    align-items: center;
    min-height: 36px;
  }

  .notice-inner p {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .notice-inner a {
    font-size: 12px;
  }

  .topbar-inner {
    min-height: 58px;
  }

  .brand {
    font-size: 14px;
  }

  .btn-small {
    min-height: 34px;
    font-size: 12px;
  }

  .topbar {
    top: 36px;
  }

  .hero {
    margin-top: 94px;
    min-height: 84vh;
  }

  .hero h1 {
    font-size: clamp(30px, 9vw, 40px);
  }

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

  .hero-metrics strong {
    font-size: 17px;
  }

  .section h2 {
    font-size: 28px;
  }

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

  .contact-list {
    font-size: 16px;
  }
}