:root {
  color-scheme: light;
  --ink: #14211f;
  --muted: #60706b;
  --line: #dbe5df;
  --paper: #ffffff;
  --soft: #f5f8f2;
  --green: #0d6b57;
  --green-dark: #08483c;
  --gold: #c8963e;
  --blue: #315f8d;
  --shadow: 0 18px 50px rgba(20, 33, 31, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  background: var(--paper);
}

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

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
  padding: 0 clamp(18px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(219, 229, 223, 0.88);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 330px;
}

.brand-logo {
  display: block;
  width: 148px;
  height: auto;
  flex: 0 0 auto;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  line-height: 1.25;
  font-size: 16px;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: #263936;
  font-size: 15px;
}

.main-nav a {
  position: relative;
  padding: 8px 0;
}

.main-nav a::after {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--gold);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

.main-nav a:hover::after {
  transform: scaleX(1);
}

.nav-cta,
.primary-button,
.secondary-button,
.chat-input button {
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 700;
}

.nav-cta,
.primary-button,
.chat-input button {
  color: #fff;
  background: var(--green);
}

.nav-cta {
  padding: 11px 18px;
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: center;
  padding: 120px clamp(20px, 6vw, 80px) 72px;
  overflow: hidden;
}

.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 255, 255, 0.8) 42%, rgba(255, 255, 255, 0.3) 72%, rgba(255, 255, 255, 0.08) 100%),
    linear-gradient(180deg, rgba(245, 248, 242, 0.1), rgba(245, 248, 242, 0.75));
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
}

.eyebrow,
.section-heading p,
.section-kicker {
  margin: 0 0 12px;
  color: var(--green);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
}

.hero h1,
.section h2,
.process-band h2,
.contact-band h2 {
  margin: 0;
  line-height: 1.12;
  color: var(--ink);
}

.hero h1 {
  max-width: 640px;
  font-size: clamp(42px, 5.2vw, 72px);
}

.hero-copy,
.lead {
  max-width: 590px;
  color: #42534f;
  line-height: 1.85;
}

.hero-copy {
  margin: 24px 0 0;
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
}

.secondary-button {
  color: var(--green-dark);
  background: #fff;
  border: 1px solid var(--line);
}

.official-link {
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
}

.partner-link {
  color: var(--green-dark);
  background: #f7dfaa;
  border-color: #f7dfaa;
}

.quick-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 540px;
  margin: 42px 0 0;
}

.quick-stats div {
  padding: 18px;
  border: 1px solid rgba(219, 229, 223, 0.9);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 12px 30px rgba(20, 33, 31, 0.08);
}

.quick-stats dt {
  color: var(--green-dark);
  font-size: 22px;
  font-weight: 800;
}

.quick-stats dd {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.trust-strip {
  display: flex;
  justify-content: center;
  gap: clamp(18px, 5vw, 62px);
  padding: 20px;
  color: #fff;
  background: var(--green-dark);
  font-weight: 700;
}

.section,
.process-band,
.contact-band {
  padding: 82px clamp(20px, 6vw, 80px);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading h2,
.split-section h2,
.contact-band h2 {
  font-size: clamp(28px, 3vw, 42px);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.service-card {
  min-height: 260px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 10px 32px rgba(20, 33, 31, 0.06);
}

.service-icon {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 8px;
  color: var(--green-dark);
  background: #e7f2ed;
  font-weight: 800;
}

.service-card h3,
.timeline h3,
.advantage-list h3 {
  margin: 20px 0 10px;
  font-size: 20px;
}

.service-card p,
.timeline p,
.advantage-list p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.service-card strong {
  display: block;
  margin-top: 22px;
  color: var(--blue);
  font-size: 14px;
}

.partner-card {
  position: relative;
  overflow: hidden;
  grid-column: span 2;
  min-height: 320px;
  color: #fff;
  background:
    linear-gradient(135deg, rgba(8, 72, 60, 0.96), rgba(49, 95, 141, 0.92)),
    var(--green-dark);
  border-color: rgba(255, 255, 255, 0.18);
}

.partner-card .service-icon {
  color: var(--green-dark);
  background: #f7dfaa;
}

.partner-card p {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.84);
}

.partner-card .partner-pay {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin-top: 24px;
}

.partner-card .partner-pay span {
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
}

.partner-card .partner-pay strong {
  margin: 0;
  color: #f7dfaa;
  font-size: 34px;
}

.partner-card a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  margin-top: 24px;
  padding: 0 18px;
  border-radius: 8px;
  color: var(--green-dark);
  background: #fff;
  font-weight: 800;
}

.partner-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.62fr);
  gap: 42px;
  align-items: center;
  padding: 72px clamp(20px, 6vw, 80px);
  color: #fff;
  background:
    linear-gradient(135deg, rgba(8, 72, 60, 0.95), rgba(13, 107, 87, 0.82)),
    var(--green-dark);
}

.partner-feature h2 {
  margin: 0;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.12;
}

.partner-feature p {
  max-width: 780px;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: 18px;
  line-height: 1.85;
}

.partner-feature .section-kicker {
  color: #f7dfaa;
}

.partner-feature-panel {
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
}

.partner-feature-panel span,
.partner-feature-panel small {
  display: block;
  color: rgba(255, 255, 255, 0.76);
}

.partner-feature-panel strong {
  display: block;
  margin: 8px 0;
  color: #f7dfaa;
  font-size: 42px;
  line-height: 1;
}

.partner-feature-panel .primary-button {
  margin-top: 24px;
  width: 100%;
  color: var(--green-dark);
  background: #fff;
}

.process-band {
  background: var(--soft);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: item;
}

.timeline li {
  min-height: 220px;
  padding: 26px;
  border-left: 3px solid var(--gold);
  border-radius: 8px;
  background: #fff;
}

.timeline span {
  color: var(--gold);
  font-size: 26px;
  font-weight: 900;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 52px;
  align-items: start;
}

.advantage-list {
  display: grid;
  gap: 14px;
}

.advantage-list div {
  padding: 24px 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.advantage-list h3 {
  margin-top: 0;
}

.contact-band {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(320px, 1fr);
  gap: 44px;
  align-items: start;
  color: #fff;
  background:
    linear-gradient(135deg, rgba(8, 72, 60, 0.96), rgba(49, 95, 141, 0.94)),
    var(--green-dark);
}

.contact-band h2,
.contact-band .section-kicker {
  color: #fff;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: 24px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.24);
}

.contact-form label,
.contact-form span {
  display: grid;
  gap: 8px;
}

.contact-form span {
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 8px;
  padding: 13px 14px;
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
  outline: none;
}

.contact-form option {
  color: var(--ink);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: rgba(255, 255, 255, 0.62);
}

.wide-field,
.contact-form .primary-button,
.form-note {
  grid-column: 1 / -1;
}

.form-note {
  min-height: 24px;
  margin: 0;
  color: #f7dfaa;
}

.chat-widget {
  position: fixed;
  z-index: 40;
  right: 22px;
  bottom: 22px;
}

.chat-fab {
  display: grid;
  place-items: center;
  width: 62px;
  height: 62px;
  margin-left: auto;
  border: 0;
  border-radius: 50%;
  color: #fff;
  background: var(--green);
  box-shadow: var(--shadow);
  cursor: pointer;
}

.chat-fab span {
  font-size: 24px;
  font-weight: 900;
}

.chat-panel {
  position: absolute;
  right: 0;
  bottom: 76px;
  display: none;
  width: min(360px, calc(100vw - 34px));
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.chat-panel.is-open {
  display: block;
}

.chat-panel header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px;
  color: #fff;
  background: var(--green-dark);
}

.chat-panel header strong,
.chat-panel header small {
  display: block;
}

.chat-panel header small {
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.72);
}

.chat-panel header button {
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 8px;
  color: #fff;
  background: rgba(255, 255, 255, 0.14);
  cursor: pointer;
  font-size: 22px;
}

.chat-messages {
  display: grid;
  gap: 10px;
  min-height: 170px;
  max-height: 260px;
  overflow: auto;
  padding: 16px;
  background: #f7faf6;
}

.bot-message,
.user-message {
  width: fit-content;
  max-width: 86%;
  margin: 0;
  padding: 10px 12px;
  border-radius: 8px;
  line-height: 1.6;
}

.bot-message {
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
}

.user-message {
  justify-self: end;
  color: #fff;
  background: var(--green);
}

.quick-replies {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0 16px 14px;
  background: #f7faf6;
}

.quick-replies button {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 10px;
  color: var(--green-dark);
  background: #fff;
  cursor: pointer;
  font-size: 13px;
}

.chat-input {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  padding: 14px;
  border-top: 1px solid var(--line);
}

.chat-input input {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
}

.chat-input button {
  padding: 0 14px;
}

@media (max-width: 980px) {
  .main-nav {
    display: none;
  }

  .hero {
    min-height: 86vh;
  }

  .service-grid,
  .timeline,
  .split-section,
  .contact-band,
  .partner-feature {
    grid-template-columns: 1fr 1fr;
  }

  .split-section,
  .contact-band {
    gap: 30px;
  }
}

@media (max-width: 700px) {
  .site-header {
    height: 66px;
  }

  .brand {
    min-width: 0;
  }

  .brand-logo {
    width: 120px;
  }

  .brand strong {
    max-width: 160px;
    font-size: 14px;
  }

  .nav-cta {
    display: none;
  }

  .hero {
    min-height: 92vh;
    padding-top: 98px;
  }

  .hero-overlay {
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(255, 255, 255, 0.8) 62%, rgba(255, 255, 255, 0.42)),
      rgba(245, 248, 242, 0.58);
  }

  .hero h1 {
    font-size: 38px;
  }

  .quick-stats,
  .service-grid,
  .timeline,
  .split-section,
  .contact-band,
  .contact-form,
  .partner-feature {
    grid-template-columns: 1fr;
  }

  .partner-card {
    grid-column: auto;
  }

  .trust-strip {
    overflow-x: auto;
    justify-content: flex-start;
    white-space: nowrap;
  }

  .section,
  .process-band,
  .contact-band {
    padding: 62px 20px;
  }

  .chat-widget {
    right: 14px;
    bottom: 14px;
  }
}