:root {
  --blue: #1764ff;
  --blue-dark: #0f4fd1;
  --ink: #101828;
  --muted: #667085;
  --line: #e6edf7;
  --soft-blue: #eaf2ff;
  --bg: #f5f8fd;
  font-family: "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(20px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--blue);
  font-size: 22px;
  font-weight: 900;
}

.brand span {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, #2f7bff, #1764ff);
  box-shadow: 0 12px 28px rgba(23, 100, 255, 0.18);
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: #344054;
  font-size: 15px;
}

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

.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(520px, 1.05fr);
  gap: 42px;
  align-items: center;
  padding: 64px clamp(20px, 5vw, 72px) 52px;
  background:
    linear-gradient(180deg, rgba(234, 242, 255, 0.72), rgba(245, 248, 253, 0.2)),
    #fff;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 15px;
  font-weight: 900;
}

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(46px, 6vw, 78px);
  line-height: 1;
  letter-spacing: 0;
}

.lead {
  max-width: 620px;
  color: #475467;
  font-size: 20px;
  line-height: 1.8;
}

.slogan {
  margin: -2px 0 18px;
  color: var(--blue);
  font-size: 24px;
  line-height: 1.25;
  font-weight: 900;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 34px 0 30px;
}

.primary-action,
.secondary-action {
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 26px;
  font-weight: 800;
}

.primary-action {
  color: #fff;
  background: var(--blue);
  box-shadow: 0 18px 36px rgba(23, 100, 255, 0.18);
}

.secondary-action {
  color: var(--blue);
  background: #fff;
  border: 1px solid #cfe0fb;
}

.trust-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 620px;
  margin: 0;
}

.trust-list div {
  padding: 16px;
  background: #fff;
  border: 1px solid var(--line);
}

.trust-list dt {
  color: var(--ink);
  font-weight: 900;
}

.trust-list dd {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.product-shot {
  overflow: hidden;
  background: #fff;
  border: 1px solid #d9e6f8;
  box-shadow: 0 28px 80px rgba(16, 24, 40, 0.16);
}

.shot-titlebar {
  height: 62px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 18px;
  color: #fff;
  background: linear-gradient(90deg, #2d72ff, #1764ff);
}

.shot-logo {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  color: var(--blue);
  background: #fff;
  font-weight: 900;
}

.shot-titlebar em {
  color: #dfeaff;
  font-style: normal;
  font-size: 13px;
}

.shot-body {
  display: grid;
  grid-template-columns: 190px 1fr;
  min-height: 430px;
}

.shot-body aside {
  padding: 20px 0;
  background: #f4f8ff;
  border-right: 1px solid #dce8f8;
}

.shot-body aside b,
.shot-body aside span {
  display: block;
  padding: 12px 22px;
}

.shot-body aside b {
  color: var(--blue);
  font-size: 18px;
}

.shot-body aside span {
  color: #567097;
}

.shot-body section {
  padding: 24px;
}

.shot-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
}

.shot-toolbar button {
  height: 38px;
  padding: 0 16px;
  color: #fff;
  background: var(--blue);
  border: 0;
  font: inherit;
  font-weight: 800;
}

.shot-toolbar small {
  margin-left: auto;
  padding: 10px 14px;
  color: #027a48;
  background: #ecfdf3;
  border: 1px solid #abefc6;
  font-weight: 800;
}

.shot-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 18px;
}

.shot-steps span {
  padding: 12px;
  color: var(--blue);
  background: var(--soft-blue);
  font-weight: 800;
}

.product-shot table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.product-shot th,
.product-shot td {
  padding: 14px;
  border: 1px solid #e4edf8;
  text-align: left;
}

.product-shot th {
  background: #f7fbff;
}

.section {
  padding: 72px clamp(20px, 5vw, 72px);
}

.section-head {
  max-width: 760px;
  margin-bottom: 30px;
}

.section h2 {
  margin-bottom: 12px;
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.18;
}

.section-head p:not(.eyebrow),
.info-layout p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.8;
}

.feature-grid,
.pricing-grid,
.legal-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.feature-grid article,
.pricing-grid article,
.legal-grid article {
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 12px 30px rgba(16, 24, 40, 0.04);
}

.feature-grid h3,
.pricing-grid h3,
.legal-grid h3 {
  margin-bottom: 10px;
  font-size: 22px;
}

.feature-grid p,
.pricing-grid p,
.legal-grid p {
  color: var(--muted);
  line-height: 1.75;
}

.pricing-section {
  background: #fff;
}

.pricing-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.pricing-grid strong {
  display: block;
  margin: 16px 0;
  color: var(--blue);
  font-size: 42px;
}

.pricing-grid .highlight {
  background: #eef5ff;
  border-color: var(--blue);
}

.info-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 0.9fr);
  gap: 32px;
  align-items: start;
}

.support-list {
  margin: 0;
  padding: 24px;
  list-style: none;
  background: #fff;
  border: 1px solid var(--line);
}

.support-list li {
  padding: 14px 0;
  color: #475467;
  border-bottom: 1px solid var(--line);
  line-height: 1.7;
}

.support-list li:last-child {
  border-bottom: 0;
}

.legal-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px clamp(20px, 5vw, 72px);
  color: #5d6b82;
  background: #fff;
  border-top: 1px solid var(--line);
}

.site-footer strong,
.site-footer span {
  display: block;
}

.site-footer strong {
  color: var(--ink);
}

.site-footer p {
  margin: 0;
}

.affiliate-hero {
  padding: 72px clamp(20px, 5vw, 72px) 36px;
  background: linear-gradient(180deg, rgba(234, 242, 255, 0.72), rgba(245, 248, 253, 0.2)), #fff;
}

.affiliate-hero h1 {
  max-width: 820px;
  margin-bottom: 20px;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.08;
}

.affiliate-hero p:not(.eyebrow) {
  max-width: 760px;
  color: #475467;
  font-size: 19px;
  line-height: 1.8;
}

.affiliate-panel {
  display: grid;
  grid-template-columns: minmax(320px, 0.75fr) minmax(420px, 1.25fr);
  gap: 22px;
  padding: 28px clamp(20px, 5vw, 72px) 72px;
}

.affiliate-card {
  padding: 28px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 12px 30px rgba(16, 24, 40, 0.04);
}

.affiliate-card h2 {
  margin-bottom: 20px;
  font-size: 28px;
}

.affiliate-card label {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
  color: #475467;
  font-weight: 700;
}

.affiliate-card input {
  height: 46px;
  padding: 0 14px;
  color: var(--ink);
  background: #fff;
  border: 1px solid #d9e6f8;
  font: inherit;
  outline: none;
}

.affiliate-card input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(23, 100, 255, 0.1);
}

.affiliate-card button {
  height: 46px;
  padding: 0 22px;
  color: #fff;
  background: var(--blue);
  border: 0;
  font: inherit;
  font-weight: 900;
}

.affiliate-result {
  min-height: 180px;
  margin-top: 18px;
  padding: 18px;
  color: #344054;
  background: #f8fbff;
  border: 1px solid #d9e6f8;
  line-height: 1.75;
}

.affiliate-result code {
  color: var(--blue);
  word-break: break-all;
}

.affiliate-summary {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}

.affiliate-summary strong,
.affiliate-summary span {
  padding: 12px;
  background: #fff;
  border: 1px solid var(--line);
}

.affiliate-table {
  width: 100%;
  margin-top: 16px;
  border-collapse: collapse;
  background: #fff;
}

.affiliate-table th,
.affiliate-table td {
  padding: 12px;
  border: 1px solid #e4edf8;
  text-align: left;
}

@media (max-width: 980px) {
  .affiliate-panel,
  .affiliate-summary {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 980px) {
  .site-header {
    height: auto;
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
    padding-top: 16px;
    padding-bottom: 16px;
  }

  .site-header nav {
    gap: 16px;
    flex-wrap: wrap;
  }

  .hero,
  .info-layout {
    grid-template-columns: 1fr;
  }

  .product-shot {
    min-width: 0;
  }

  .feature-grid,
  .pricing-grid,
  .legal-grid,
  .trust-list {
    grid-template-columns: 1fr;
  }

  .shot-body {
    grid-template-columns: 1fr;
  }

  .shot-body aside {
    display: none;
  }

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