:root {
  --navy: #06162d;
  --navy-2: #092448;
  --blue: #1476d8;
  --blue-2: #4db3ff;
  --gold: #d6a43a;
  --green: #1dbf73;
  --text: #102033;
  --muted: #5f6f82;
  --light: #f5f8fc;
  --white: #ffffff;
  --line: #d9e4f1;
  --shadow: 0 18px 50px rgba(7, 31, 63, 0.12);
  --radius: 14px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "HarmonyOS Sans SC", "Source Han Sans SC", Arial, sans-serif;
  color: var(--text);
  background: var(--white);
}

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

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

.container {
  width: min(100% - 32px, var(--max));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(16px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(217, 228, 241, 0.9);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 900;
  color: var(--navy);
  white-space: nowrap;
}

.brand-icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  color: #ffc32c;
  background: var(--navy);
  font-weight: 900;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 700;
}

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

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--navy);
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - 68px);
  padding: 76px 0;
  color: var(--white);
  background:
    radial-gradient(circle at 72% 18%, rgba(77, 179, 255, 0.2), transparent 26rem),
    linear-gradient(135deg, #08244a 0%, #0b3f7c 52%, #06162d 100%);
}

.hero-bg-mark {
  position: absolute;
  right: -2vw;
  top: 2vw;
  color: rgba(255, 255, 255, 0.04);
  font-size: clamp(260px, 42vw, 660px);
  font-weight: 900;
  line-height: 0.8;
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  align-items: center;
  gap: 48px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 16px;
  font-weight: 900;
  letter-spacing: 0;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 18px;
  font-size: clamp(52px, 8vw, 94px);
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(34px, 4vw, 50px);
  line-height: 1.14;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 24px;
  line-height: 1.28;
}

p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
}

.hero-subtitle {
  margin-bottom: 18px;
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.35;
}

.hero-desc {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 24px;
  border: 0;
  border-radius: 9px;
  cursor: pointer;
  font-weight: 900;
}

.btn-primary {
  color: #06162d;
  background: linear-gradient(135deg, #e9bc50, #ffd978);
  box-shadow: 0 12px 28px rgba(214, 164, 58, 0.25);
}

.btn-secondary {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.26);
  background: rgba(255, 255, 255, 0.08);
}

.hero-card {
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(16px);
}

.hero-card-title {
  margin-bottom: 18px;
  color: rgba(255, 255, 255, 0.72);
  font-weight: 900;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.hero-metrics.five {
  grid-template-columns: repeat(2, 1fr);
}

.hero-metrics article {
  min-height: 118px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  background: rgba(6, 22, 45, 0.72);
}

.hero-metrics .metric-primary {
  grid-column: 1 / -1;
  min-height: auto;
  background: rgba(214, 164, 58, 0.12);
  border-color: rgba(214, 164, 58, 0.36);
}

.hero-metrics strong {
  display: block;
  color: var(--gold);
  font-size: clamp(30px, 5vw, 46px);
  line-height: 1;
}

.hero-metrics span {
  display: block;
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.75);
  font-weight: 800;
}

.hero-metrics small {
  display: block;
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 13px;
  line-height: 1.5;
}

.section {
  padding: 88px 0;
}

.section-soft {
  background:
    linear-gradient(180deg, #f7faff, #eef5ff);
}

.section-dark {
  color: var(--white);
  background:
    radial-gradient(circle at 20% 12%, rgba(77, 179, 255, 0.16), transparent 26rem),
    linear-gradient(135deg, #06162d, #092448);
}

.section-dark p {
  color: rgba(255, 255, 255, 0.72);
}

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

.section-title.center {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.section-note {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 16px;
}

.two-col {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 44px;
  align-items: start;
}

.text-panel,
.info-card,
.feature-card,
.calc-panel,
.faq-list details,
.contact-form,
.wechat-box {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

.text-panel {
  padding: 30px;
}

.text-panel p:last-child {
  margin-bottom: 0;
}

.card-grid {
  display: grid;
  gap: 18px;
}

.card-grid.four {
  grid-template-columns: repeat(4, 1fr);
}

.card-grid.three {
  grid-template-columns: repeat(3, 1fr);
}

.info-card,
.feature-card {
  min-height: 230px;
  padding: 24px;
}

.compact-card {
  min-height: 210px;
}

.card-number {
  display: inline-block;
  margin-bottom: 20px;
  color: var(--gold);
  font-size: 18px;
  font-weight: 900;
}

.info-card h3,
.feature-card h3 {
  color: var(--navy);
}

.info-card p,
.feature-card p {
  margin-bottom: 0;
  font-size: 17px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 12px;
  color: var(--navy);
  background: linear-gradient(135deg, #e9bc50, #ffd978);
  font-weight: 900;
}

.feature-card strong {
  color: var(--blue);
}

.income-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.income-steps article {
  min-height: 230px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
}

.income-steps span {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--gold);
  font-weight: 900;
}

.income-steps h3 {
  color: var(--white);
  font-size: 30px;
}

.summary-line {
  margin: 34px 0 0;
  color: var(--gold) !important;
  text-align: center;
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 900;
}

.summary-note {
  max-width: 780px;
  margin: 12px auto 0;
  color: rgba(255, 255, 255, 0.68) !important;
  text-align: center;
  font-size: 18px;
}

.calc-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 20px;
  align-items: stretch;
}

.calc-layout.refined {
  grid-template-columns: 0.9fr 1.1fr;
}

.calc-panel {
  padding: 28px;
}

.calc-panel h3 {
  color: var(--navy);
  font-size: 28px;
}

.clean-list {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.clean-list li {
  padding: 14px 16px;
  border-radius: 10px;
  color: var(--navy);
  background: #f3f7fd;
  font-weight: 800;
}

.calc-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.calc-row span {
  color: var(--muted);
}

.calc-row strong {
  color: var(--navy);
  text-align: right;
}

.model-result,
.model-disclaimer {
  box-shadow: none;
}

.model-result {
  display: grid;
  align-content: center;
  gap: 10px;
  border-color: rgba(20, 118, 216, 0.22);
  background: linear-gradient(180deg, #f8fbff, #eef5ff);
}

.model-result span {
  color: var(--muted);
  font-weight: 900;
}

.model-result strong {
  color: var(--blue);
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.2;
}

.model-disclaimer {
  border-color: rgba(214, 164, 58, 0.35);
  background: #fffbf1;
}

.model-disclaimer strong {
  display: block;
  margin-bottom: 8px;
  color: #9b6b09;
  font-size: 20px;
}

.model-disclaimer p {
  margin-bottom: 0;
  color: #74613b;
  font-size: 16px;
}

.fineprint {
  max-width: 980px;
  margin: 24px auto 0;
  color: #758497;
  text-align: center;
  font-size: 14px;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}

.process-list article {
  position: relative;
  min-height: 210px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.process-list strong {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin-bottom: 18px;
  border-radius: 50%;
  color: var(--white);
  background: var(--blue);
}

.process-list p {
  font-size: 16px;
}

.faq-list {
  display: grid;
  gap: 14px;
  max-width: 900px;
  margin: 0 auto;
}

.faq-list details {
  padding: 20px 24px;
}

.faq-list summary {
  cursor: pointer;
  color: var(--navy);
  font-size: 20px;
  font-weight: 900;
}

.faq-list p {
  margin: 14px 0 0;
  font-size: 17px;
}

.contact-section {
  color: var(--white);
  background:
    radial-gradient(circle at 80% 18%, rgba(77, 179, 255, 0.16), transparent 28rem),
    linear-gradient(135deg, #06162d, #092448);
}

.contact-section p {
  color: rgba(255, 255, 255, 0.72);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  align-items: start;
}

.contact-title {
  margin-bottom: 30px;
}

.contact-title p {
  max-width: 820px;
  margin-right: auto;
  margin-left: auto;
}

.contact-card {
  min-height: 100%;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  background: var(--white);
  box-shadow: var(--shadow);
}

.contact-card h3 {
  color: var(--navy);
  font-size: 28px;
}

.contact-card p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}

.contact-card-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 150px;
  gap: 16px;
  align-items: stretch;
  margin-top: 20px;
}

.wechat-info {
  display: grid;
  align-content: center;
  gap: 12px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #f8fbff;
}

.wechat-info span {
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

.wechat-info strong {
  color: var(--navy);
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1.15;
}

.intent-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 22px 0;
}

.intent-list span {
  min-height: 48px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--navy);
  background: #f8fbff;
  font-weight: 900;
}

.contact-small,
.contact-card .contact-small {
  margin: 16px 0 0;
  color: #758497;
  font-size: 14px;
}

.contact-disclaimer {
  max-width: 900px;
  margin: 24px auto 0;
  color: rgba(255, 255, 255, 0.62) !important;
  text-align: center;
  font-size: 14px;
}

.wechat-box {
  padding: 22px;
  color: var(--text);
}

.wechat-box span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
}

.wechat-box strong {
  color: var(--navy);
  font-size: 24px;
}

.wechat-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 154px;
  gap: 14px;
  align-items: stretch;
  margin-top: 18px;
}

.qr-box {
  display: grid;
  gap: 8px;
  justify-items: center;
  align-content: center;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  background: var(--white);
  box-shadow: var(--shadow);
  font-size: 13px;
  font-weight: 800;
}

.qr-box img {
  width: 136px;
  height: 136px;
  display: block;
  object-fit: cover;
  border-radius: 8px;
}

.contact-method {
  margin-top: 26px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
}

.contact-method h3,
.form-head h3 {
  margin-bottom: 10px;
  color: var(--white);
}

.method-label {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--gold);
  font-size: 14px;
  font-weight: 900;
}

.copy-btn {
  margin-top: 14px;
  width: 100%;
}

.copy-tip {
  margin: 12px 0 0;
  min-height: 24px;
  color: var(--gold) !important;
  font-weight: 900;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px 18px;
  padding: 26px;
  color: var(--text);
}

.intention-card {
  display: block;
}

.form-head {
  padding-bottom: 4px;
}

.form-head h3 {
  color: var(--navy);
}

.form-head p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

.intention-link {
  width: 100%;
  margin-top: 24px;
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: var(--navy);
  font-weight: 900;
}

.option-group {
  margin: 0;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #f8fbff;
}

.option-group legend {
  padding: 0 6px;
  color: var(--navy);
  font-weight: 900;
}

.option-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.option-grid label {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  color: var(--text);
  background: var(--white);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.25;
}

.option-grid input {
  flex: 0 0 auto;
  width: auto;
  margin: 0;
  accent-color: var(--blue);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 13px 14px;
  color: var(--text);
  background: #f8fbff;
  outline: none;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(20, 118, 216, 0.12);
}

.full-field,
.form-tip {
  grid-column: 1 / -1;
}

.form-tip {
  margin: 0;
  color: var(--green);
  font-weight: 900;
}

.intention-card .form-tip {
  margin-top: 16px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
}

.mobile-sticky-cta {
  display: none;
}

.copy-toast {
  position: fixed;
  left: 50%;
  bottom: 84px;
  z-index: 70;
  max-width: min( calc(100vw - 32px), 360px);
  padding: 12px 16px;
  border-radius: 10px;
  color: var(--white);
  background: rgba(6, 22, 45, 0.94);
  box-shadow: 0 12px 30px rgba(6, 22, 45, 0.24);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 12px);
  transition: opacity 0.18s ease, transform 0.18s ease;
  font-size: 14px;
  font-weight: 900;
  text-align: center;
}

.copy-toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

.site-footer {
  padding: 34px 0;
  color: rgba(255, 255, 255, 0.72);
  background: #041020;
}

.site-footer strong {
  display: block;
  margin-bottom: 10px;
  color: var(--white);
}

.site-footer p {
  margin: 4px 0;
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  line-height: 1.6;
}

@media (max-width: 1040px) {
  .site-nav {
    gap: 14px;
    font-size: 14px;
  }

  .hero-grid,
  .two-col,
  .calc-layout,
  .contact-grid {
    grid-template-columns: 1fr;
  }

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

  .card-grid.four,
  .card-grid.three,
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 820px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    left: 16px;
    right: 16px;
    top: 76px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--white);
    box-shadow: var(--shadow);
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: 13px 12px;
  }

  .income-steps,
  .process-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  body {
    padding-bottom: 74px;
  }

  .site-header {
    height: 62px;
    padding: 0 14px;
  }

  .brand {
    font-size: 16px;
  }

  .brand-icon {
    width: 30px;
    height: 30px;
  }

  .hero {
    min-height: auto;
    padding: 28px 0 38px;
  }

  .hero-grid {
    gap: 20px;
  }

  h1 {
    font-size: 38px;
  }

  h2 {
    font-size: 32px;
  }

  h3 {
    font-size: 22px;
  }

  p,
  .hero-desc {
    font-size: 16px;
  }

  .hero-subtitle {
    font-size: 18px;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 18px;
  }

  .btn {
    min-height: 42px;
    padding: 0 12px;
    font-size: 15px;
  }

  .hero-card {
    padding: 16px;
  }

  .hero-card-title {
    margin-bottom: 12px;
  }

  .hero-metrics article {
    min-height: 74px;
    padding: 12px;
  }

  .hero-metrics strong {
    font-size: 25px;
  }

  .hero-metrics span {
    margin-top: 6px;
  }

  .hero-metrics small {
    margin-top: 6px;
    font-size: 12px;
    line-height: 1.35;
  }

  .hero-metrics,
  .card-grid.four,
  .card-grid.three,
  .feature-grid,
  .option-grid,
  .contact-form {
    grid-template-columns: 1fr;
  }

  .contact-form {
    padding: 20px;
  }

  .option-group {
    padding: 16px;
  }

  .option-grid label {
    min-height: 42px;
    padding: 10px 12px;
    font-size: 14px;
  }

  .hero-metrics.five {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-metrics .metric-primary {
    grid-column: 1 / -1;
  }

  .wechat-contact {
    grid-template-columns: 1fr;
  }

  .qr-box img {
    width: 150px;
    height: 150px;
  }

  .contact-card {
    padding: 22px;
  }

  .contact-card-body,
  .intent-list {
    grid-template-columns: 1fr;
  }

  .mobile-sticky-cta {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 62px;
    padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
    color: var(--white);
    background: rgba(6, 22, 45, 0.96);
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 -10px 30px rgba(6, 22, 45, 0.2);
    backdrop-filter: blur(14px);
  }

  .mobile-sticky-cta span {
    font-size: 16px;
    font-weight: 900;
  }

  .mobile-sticky-cta button {
    min-width: 112px;
    min-height: 40px;
    border: 0;
    border-radius: 8px;
    color: var(--navy);
    background: linear-gradient(135deg, #e9bc50, #ffd978);
    font-size: 15px;
    font-weight: 900;
  }

  .site-footer {
    padding-bottom: 58px;
  }

  .section {
    padding: 66px 0;
  }

  .info-card,
  .feature-card,
  .income-steps article,
  .process-list article {
    min-height: auto;
  }

  .calc-row {
    display: grid;
  }

  .calc-row strong {
    text-align: left;
  }
}