/* ========== Design Tokens ========== */
:root {
  --bg: #F8FAF4;
  --dark-green: #123532;
  --dark-green-bg: #123632;
  --primary-green: #13B68D;
  --accent-green: #23D4AA;
  --badge-green: #169B79;
  --text-gray: #5E7470;
  --text-dark: #123532;
  --light-green: #E2F9F1;
  --card-green: #B7F0E0;
  --icon-bg: #DFF9F0;
  --progress-bg: #E9F2EE;
  --light-on-dark: #B7CCC7;
  --lighter-on-dark: #ADC4BE;
  --white: #FFFFFF;
  --content-w: 1150px;
  --page-w: 1440px;
}

/* ========== Reset ========== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", -apple-system, "Microsoft YaHei", "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text-dark);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { display: block; max-width: 100%; }

/* ========== Container ========== */
.container {
  max-width: var(--content-w);
  margin: 0 auto;
  padding: 0 20px;
}

/* ========== Header ========== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248, 250, 244, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(18, 53, 50, 0.06);
}
.nav {
  max-width: var(--content-w);
  margin: 0 auto;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
}
.nav-left {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-left .logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
}
.logo-text {
  font-size: 21px;
  font-weight: 600;
  color: var(--dark-green);
  letter-spacing: 1px;
}
.nav-center {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-center a {
  font-size: 13px;
  color: var(--text-gray);
  transition: color 0.2s;
}
.nav-center a:hover {
  color: var(--primary-green);
}
.nav-cta {
  background: var(--dark-green);
  color: var(--white) !important;
  font-size: 13px;
  font-weight: 600;
  padding: 10px 24px;
  border-radius: 19px;
  transition: background 0.2s;
}
.nav-cta:hover {
  background: var(--primary-green);
}

/* ========== Hero ========== */
.hero {
  position: relative;
  padding: 78px 0 0;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 500px;
  gap: 40px;
  align-items: start;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--light-green);
  border-radius: 15px;
  padding: 6px 16px;
  margin-bottom: 28px;
}
.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
}
.hero-badge span:last-child {
  font-size: 11px;
  color: #247866;
  letter-spacing: 1px;
}
.hero-title {
  font-size: 57px;
  font-weight: 600;
  line-height: 1.25;
  color: var(--dark-green);
  margin-bottom: 10px;
}
.hero-title-green {
  color: var(--primary-green);
  font-weight: 700;
}
.hero-desc {
  font-size: 15px;
  color: var(--text-gray);
  line-height: 1.6;
}
.hero-pills {
  display: flex;
  gap: 9px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.pill {
  background: var(--white);
  border-radius: 16px;
  padding: 7px 14px;
  font-size: 12px;
  color: var(--dark-green);
  box-shadow: 0 1px 4px rgba(18, 53, 50, 0.06);
}
.hero-buttons {
  display: flex;
  gap: 11px;
  margin-top: 30px;
  align-items: center;
}
.btn-primary {
  background: var(--accent-green);
  color: var(--dark-green);
  font-size: 14px;
  font-weight: 600;
  padding: 13px 28px;
  border-radius: 24px;
  transition: transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 4px 14px rgba(35, 212, 170, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(35, 212, 170, 0.45);
}
.btn-secondary {
  font-size: 14px;
  font-weight: 400;
  color: var(--dark-green);
  padding: 13px 24px;
  border-radius: 24px;
  border: 1px solid rgba(18, 53, 50, 0.12);
  transition: border-color 0.2s;
}
.btn-secondary:hover {
  border-color: var(--primary-green);
  color: var(--primary-green);
}

/* Hero Image */
.hero-image-wrap {
  position: relative;
  margin-top: 40px;
}
.hero-image-bg {
  position: absolute;
  top: 13px;
  left: 16px;
  width: 100%;
  height: 468px;
  background: var(--card-green);
  border-radius: 16px;
}
.hero-image-wrap img {
  position: relative;
  width: 100%;
  height: 468px;
  object-fit: cover;
  border-radius: 16px;
}
.hero-stats-card {
  position: absolute;
  bottom: -30px;
  left: -30px;
  background: var(--white);
  border-radius: 14px;
  padding: 13px 18px;
  box-shadow: 0 8px 30px rgba(18, 53, 50, 0.12);
  width: 205px;
}
.stats-label {
  font-size: 13px;
  color: var(--text-gray);
  margin-bottom: 4px;
}
.stats-value {
  font-size: 16px;
  font-weight: 600;
  color: var(--dark-green);
  margin-bottom: 8px;
}
.stats-bar {
  width: 100%;
  height: 5px;
  background: var(--progress-bg);
  border-radius: 3px;
  overflow: hidden;
}
.stats-bar-fill {
  width: 76%;
  height: 100%;
  background: var(--accent-green);
  border-radius: 3px;
}

/* ========== Hero Features Bar ========== */
.hero-features {
  padding: 60px 0 30px;
  border-top: 1px solid rgba(18, 53, 50, 0.08);
  margin-top: 60px;
}
.hero-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.hero-feature h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--dark-green);
  margin-bottom: 4px;
}
.hero-feature p {
  font-size: 13px;
  color: var(--text-gray);
}

/* ========== Section Common ========== */
.section {
  padding: 60px 0;
}
.section-badge {
  display: inline-block;
  font-size: 12px;
  color: var(--badge-green);
  letter-spacing: 1px;
  margin-bottom: 14px;
}
.section-title {
  font-size: 38px;
  font-weight: 600;
  color: var(--dark-green);
  line-height: 1.3;
}
.section-desc {
  font-size: 15px;
  color: var(--text-gray);
  margin-top: 10px;
  line-height: 1.6;
}

/* ========== Section 01: Core Service ========== */
.section-core {
  padding-top: 90px;
}
.cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 65px;
  margin-top: 60px;
}
.card {
  background: var(--white);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 2px 20px rgba(18, 53, 50, 0.06);
  transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 40px rgba(18, 53, 50, 0.12);
}
.card-img {
  width: 100%;
  height: 314px;
  object-fit: cover;
}
.card-body {
  padding: 24px;
}
.card-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--dark-green);
  margin-bottom: 12px;
}
.card-body p {
  font-size: 13px;
  color: var(--text-gray);
  line-height: 1.7;
}
.card-features {
  margin-top: 18px;
}
.card-features li {
  font-size: 13px;
  color: #41635D;
  line-height: 2;
}

/* ========== Section 02: Flexible Sharing ========== */
.section-sharing {
  background: var(--dark-green-bg);
  padding: 70px 0;
  position: relative;
}
.section-badge.light { color: #57E3BF; }
.section-title.light { color: var(--white); }
.section-desc.light { color: var(--light-on-dark); }
.sharing-grid {
  display: grid;
  grid-template-columns: 1fr 430px;
  gap: 80px;
  align-items: start;
}
.sharing-left p.section-desc.light { line-height: 1.7; }
.sharing-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px 40px;
  margin-top: 50px;
}
.sharing-feature h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 6px;
}
.sharing-feature p {
  font-size: 13px;
  color: var(--lighter-on-dark);
  line-height: 1.6;
}
.cost-card {
  background: #F8FBF7;
  border-radius: 16px;
  padding: 30px;
}
.cost-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--dark-green);
  margin-bottom: 32px;
}
.cost-bar {
  display: flex;
  height: 42px;
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 40px;
}
.cost-bar-unit {
  flex: 60;
  background: var(--accent-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--dark-green);
}
.cost-bar-staff {
  flex: 40;
  background: #D7EEE7;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--dark-green);
}
.cost-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid rgba(18, 53, 50, 0.08);
}
.cost-label {
  font-size: 15px;
  color: var(--text-gray);
}
.cost-value {
  font-size: 15px;
  color: var(--dark-green);
}
.cost-note {
  font-size: 12px;
  color: #788B86;
  margin-top: 18px;
}

/* ========== Section 03: Why Gaole ========== */
.section-why {
  padding: 90px 0;
}
.why-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-top: 60px;
}
.why-card {
  background: var(--white);
  border-radius: 16px;
  padding: 20px;
  transition: transform 0.2s, box-shadow 0.2s;
}
.why-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(18, 53, 50, 0.1);
}
.why-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--icon-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--dark-green);
  margin-bottom: 20px;
}
.why-card h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--dark-green);
  margin-bottom: 8px;
}
.why-card p {
  font-size: 13px;
  color: var(--text-gray);
  line-height: 1.6;
}

/* ========== Section 04: How It Works ========== */
.section-how {
  padding-bottom: 90px;
}
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 50px;
  padding-top: 30px;
  border-top: 1px solid rgba(18, 53, 50, 0.08);
}
.step {
  text-align: center;
}
.step-num {
  font-size: 12px;
  color: var(--badge-green);
  letter-spacing: 2px;
  margin-bottom: 8px;
}
.step-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--dark-green);
  margin-bottom: 6px;
}
.step-desc {
  font-size: 13px;
  color: var(--text-gray);
}

/* ========== CTA Section ========== */
.cta-section {
  padding: 0 20px 60px;
  max-width: var(--content-w);
  margin: 0 auto;
}
.cta-card {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  height: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.cta-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.cta-card .cta-overlay {
  position: absolute;
  inset: 0;
  background: rgba(248, 250, 244, 0.7);
  backdrop-filter: blur(2px);
}
.cta-card h2 {
  position: relative;
  font-size: 34px;
  font-weight: 600;
  color: var(--dark-green);
  margin-bottom: 10px;
}
.cta-card p {
  position: relative;
  font-size: 15px;
  color: var(--dark-green);
  margin-bottom: 22px;
}
.btn-cta {
  position: relative;
  background: var(--dark-green);
  color: var(--white);
  font-size: 14px;
  font-weight: 600;
  padding: 11px 32px;
  border-radius: 21px;
  transition: transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 4px 14px rgba(18, 54, 50, 0.3);
}
.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(18, 54, 50, 0.4);
}

/* ========== Footer ========== */
.footer {
  text-align: center;
  padding: 30px 20px;
  font-size: 13px;
  color: var(--text-gray);
  border-top: 1px solid rgba(18, 53, 50, 0.06);
}

/* ========== Responsive ========== */
@media (max-width: 1100px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-image-wrap { max-width: 500px; margin-top: 40px; }
  .cards { grid-template-columns: 1fr; gap: 30px; }
  .sharing-grid { grid-template-columns: 1fr; gap: 40px; }
  .why-cards { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; gap: 30px; }
  .nav-center { display: none; }
}
@media (max-width: 640px) {
  .hero-title { font-size: 36px; }
  .section-title { font-size: 28px; }
  .why-cards { grid-template-columns: 1fr; }
  .sharing-features { grid-template-columns: 1fr; }
  .hero-pills { flex-direction: column; gap: 8px; }
  .hero-buttons { flex-direction: column; align-items: stretch; }
  .btn-primary, .btn-secondary { text-align: center; }
  .cta-card h2 { font-size: 24px; }
  .cta-card { height: 180px; }
  .logo-text { font-size: 18px; }
}

/* ========== Animations ========== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-badge { animation: fadeUp 0.6s ease-out; }
.hero-title { animation: fadeUp 0.7s ease-out 0.1s both; }
.hero-desc { animation: fadeUp 0.7s ease-out 0.2s both; }
.hero-pills { animation: fadeUp 0.7s ease-out 0.3s both; }
.hero-buttons { animation: fadeUp 0.7s ease-out 0.4s both; }
.hero-image-wrap { animation: fadeUp 0.8s ease-out 0.3s both; }