@font-face {
  font-family: "HarmonyOS Sans SC";
  src: local("HarmonyOS Sans SC"), local("HarmonyOS Sans");
  font-display: swap;
}

:root {
  color-scheme: light;
  --ink: #10131f;
  --ink-soft: #2b3046;
  --ink-muted: #4a4f66;
  --paper: #fbf7f0;
  --mist: #edf2f2;
  --sand: #f2e7d8;
  --coral: #ff7a59;
  --teal: #2f6c6f;
  --gold: #d8ad5a;
  --sky: #a6d7d7;
  --shadow: 0 24px 60px rgba(18, 25, 40, 0.12);
  --shadow-soft: 0 12px 32px rgba(18, 25, 40, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "HarmonyOS Sans SC", "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: linear-gradient(120deg, #f4eee2 0%, #eef2f6 45%, #fff5e7 100%);
  min-height: 100vh;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: auto;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  filter: blur(0px);
  opacity: 0.22;
  z-index: -1;
}

body::before {
  top: -180px;
  right: -160px;
  background: radial-gradient(circle, rgba(255, 122, 89, 0.35) 0%, rgba(255, 122, 89, 0) 70%);
}

body::after {
  bottom: -220px;
  left: -140px;
  background: radial-gradient(circle, rgba(47, 108, 111, 0.28) 0%, rgba(47, 108, 111, 0) 70%);
}

.page {
  position: relative;
  overflow-x: hidden;
}

.container {
  width: min(1120px, 90vw);
  margin: 0 auto;
}

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

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(14px);
  background: rgba(251, 247, 240, 0.8);
  border-bottom: 1px solid rgba(16, 19, 31, 0.08);
  z-index: 10;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  gap: 18px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.brand-mark {
  font-size: 1.6rem;
  letter-spacing: 0.08em;
  font-weight: 700;
}

.brand-tag {
  font-size: 0.85rem;
  color: var(--ink-muted);
}

.site-nav {
  display: flex;
  gap: 18px;
  font-size: 0.95rem;
}

.site-nav a {
  padding: 6px 10px;
  border-radius: 999px;
  transition: all 0.3s ease;
}

.site-nav a:hover,
.site-nav a.active {
  background: rgba(255, 122, 89, 0.18);
  color: var(--ink);
}

.hero {
  padding: 88px 0 70px;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 48px;
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.24em;
  font-size: 0.75rem;
  color: var(--teal);
  margin-bottom: 12px;
}

.hero h1 {
  font-size: clamp(2.4rem, 3vw, 3.6rem);
  line-height: 1.15;
  margin: 0 0 18px;
  font-weight: 700;
}

.hero p.lead {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--ink-soft);
  margin-bottom: 26px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn.btn-large {
  padding: 14px 30px;
  font-size: 1.05rem;
}

.modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(16, 19, 31, 0.45);
  z-index: 30;
}

.modal.is-visible {
  display: flex;
}

.modal-card {
  position: relative;
  width: min(420px, 92vw);
  background: rgba(255, 255, 255, 0.96);
  border-radius: 24px;
  padding: 28px;
  box-shadow: var(--shadow);
  color: var(--ink);
}

.modal-card h3 {
  margin: 0;
  font-size: 1.2rem;
}

.modal-subtitle {
  margin: 8px 0 0;
  color: var(--ink-muted);
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 50%;
  background: rgba(16, 19, 31, 0.08);
  color: var(--ink);
  font-size: 1.2rem;
  cursor: pointer;
}

.btn.primary {
  background: linear-gradient(120deg, #ff7a59, #f5b45b);
  color: #1a1d2b;
  box-shadow: var(--shadow-soft);
}

.btn.ghost {
  border: 1px solid rgba(16, 19, 31, 0.18);
  color: var(--ink);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.hero-card {
  background: rgba(255, 255, 255, 0.72);
  border-radius: 28px;
  padding: 32px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 18px;
}

.hero-card h3 {
  margin: 0 0 8px;
  font-size: 1.2rem;
}

.plan-price {
  margin: 0;
  font-size: 2rem;
  font-weight: 700;
  color: var(--teal);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(47, 108, 111, 0.12);
  color: var(--teal);
  font-size: 0.85rem;
}

.checkout-head {
  margin-bottom: 24px;
}

.checkout-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 24px;
  align-items: stretch;
}

.checkout-card,
.checkout-summary {
  background: rgba(255, 255, 255, 0.92);
  border-radius: 22px;
  padding: 24px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(16, 19, 31, 0.06);
  height: 100%;
}

.checkout-card h3,
.checkout-summary h3 {
  margin: 0 0 16px;
  font-size: 1.1rem;
}

.checkout-card {
  display: flex;
  flex-direction: column;
}

.checkout-item {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.checkout-item strong {
  display: block;
  margin-bottom: 6px;
}

.checkout-item p {
  margin: 0;
  color: var(--ink-soft);
}

.checkout-price {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--teal);
}

.checkout-meta {
  margin-top: 14px;
  display: grid;
  gap: 6px;
  color: var(--ink-muted);
}

.checkout-meta p {
  margin: 0;
}

.checkout-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.checkout-note {
  margin: 14px 0 0;
  color: var(--ink-muted);
  font-size: 0.85rem;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
  color: var(--ink-soft);
}

.summary-row.total {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed rgba(16, 19, 31, 0.12);
  font-weight: 700;
  color: var(--ink);
}

.checkout-promo {
  margin: 6px 0 0;
  color: var(--coral);
  font-size: 0.85rem;
}

.payment-title {
  margin: 16px 0 8px;
  font-size: 0.9rem;
  color: var(--ink-muted);
}

.payment-methods {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.payment-option {
  position: relative;
}

.payment-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.payment-option label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid rgba(47, 108, 111, 0.3);
  background: rgba(47, 108, 111, 0.08);
  color: var(--teal);
  font-size: 0.85rem;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.payment-option label::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid rgba(47, 108, 111, 0.4);
  display: inline-block;
}

.payment-option input:checked + label {
  background: rgba(47, 108, 111, 0.18);
  border-color: rgba(47, 108, 111, 0.5);
  transform: translateY(-1px);
}

.payment-option input:checked + label::before {
  background: var(--teal);
  border-color: var(--teal);
}

.payment-option input:focus-visible + label {
  outline: 2px solid rgba(47, 108, 111, 0.35);
  outline-offset: 2px;
}

.section {
  padding: 64px 0;
}

.section-title {
  font-size: clamp(1.8rem, 2vw, 2.4rem);
  margin-bottom: 18px;
  font-weight: 700;
}

.section-subtitle {
  color: var(--ink-muted);
  font-size: 1rem;
  margin-bottom: 32px;
  line-height: 1.7;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.card {
  background: rgba(255, 255, 255, 0.82);
  border-radius: 22px;
  padding: 24px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(16, 19, 31, 0.06);
  min-height: 180px;
}

.card h4 {
  margin: 0 0 12px;
  font-size: 1.1rem;
}

.card p {
  margin: 0;
  line-height: 1.65;
  color: var(--ink-soft);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 18px;
}

.metric {
  background: rgba(16, 19, 31, 0.92);
  color: #fff;
  border-radius: 20px;
  padding: 22px;
}

.metric strong {
  font-size: 1.8rem;
  display: block;
  margin-bottom: 6px;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.solution {
  padding: 24px;
  border-radius: 24px;
  background: linear-gradient(130deg, rgba(255, 255, 255, 0.9), rgba(246, 238, 223, 0.9));
  border: 1px solid rgba(16, 19, 31, 0.08);
}

.solution h4 {
  margin: 0 0 10px;
}

.timeline {
  display: grid;
  gap: 16px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 18px;
  align-items: start;
}

.timeline-item span {
  font-weight: 700;
  color: var(--coral);
}

.testimonial {
  background: rgba(255, 255, 255, 0.8);
  border-radius: 26px;
  padding: 24px;
  display: grid;
  gap: 12px;
}

.cta {
  background: linear-gradient(120deg, rgba(255, 122, 89, 0.2), rgba(47, 108, 111, 0.2));
  border-radius: 28px;
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cta h3 {
  margin: 0 0 10px;
  font-size: 1.6rem;
}

.site-footer {
  padding: 40px 0 0;
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.beian-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: inherit;
  text-decoration: none;
}

.footer-beian .beian-link,
.footer-beian .beian-police {
  display: none;
}

.beian-link img {
  width: 16px;
  height: 16px;
}

.footer-bottom {
  margin-top: 24px;
  padding: 14px 0 18px;
  background: var(--mist);
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 0.85rem;
}

.footer-beian {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-copyright {
  text-align: right;
}

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

.form input,
.form textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(16, 19, 31, 0.12);
  background: rgba(255, 255, 255, 0.85);
  font-family: inherit;
  font-size: 0.95rem;
}

.form textarea {
  min-height: 140px;
  resize: vertical;
}

.form-success {
  display: none;
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(47, 108, 111, 0.12);
  color: var(--teal);
  font-weight: 600;
}

.form-success.show {
  display: block;
}

.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: all 0.8s ease;
  transition-delay: var(--delay, 0ms);
}

.fade-in {
  opacity: 0;
  transform: scale(0.98);
  transition: all 0.8s ease;
  transition-delay: var(--delay, 0ms);
}

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

.stagger > * {
  transition-delay: var(--delay, 0ms);
}

@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

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

  .site-nav {
    flex-wrap: wrap;
    justify-content: flex-end;
  }
}

@media (max-width: 720px) {
  .nav-wrap {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero {
    padding-top: 64px;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }

  .cta {
    padding: 28px;
  }

  .footer-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-copyright {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}