:root {
  --bg: #f6f8fb;
  --text: #182234;
  --muted: #657086;
  --line: #dce3ee;
  --brand: #0f67ff;
  --brand-dark: #0648bd;
  --green: #18a56b;
  --gold: #f2b84b;
  --card: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

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

.wrap {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--green));
  border-radius: 8px;
  font-weight: 800;
}

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

.brand em {
  font-size: 12px;
  color: var(--muted);
  font-style: normal;
}

nav {
  display: flex;
  gap: 20px;
  color: #344055;
  font-weight: 600;
}

.hero {
  background:
    radial-gradient(circle at 18% 20%, rgba(15, 103, 255, 0.14), transparent 32%),
    radial-gradient(circle at 84% 14%, rgba(24, 165, 107, 0.16), transparent 30%),
    #fff;
  border-bottom: 1px solid var(--line);
}

.ticker {
  background: #10213b;
  color: #fff;
}

.ticker-inner {
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 14px;
}

.ticker strong {
  color: var(--gold);
}

.hero-grid {
  min-height: 560px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 42px;
  align-items: center;
  padding: 64px 0;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--brand);
  font-weight: 800;
}

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

h1 {
  max-width: 760px;
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1.08;
  letter-spacing: 0;
  margin-bottom: 20px;
}

.lead {
  max-width: 720px;
  color: #445169;
  font-size: 19px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 22px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  font-weight: 700;
}

.btn.primary {
  background: var(--brand);
  color: #fff;
  border-color: var(--brand);
}

.trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.trust-list li {
  padding: 6px 10px;
  border-radius: 999px;
  color: #40506a;
  background: #eef4ff;
  font-size: 14px;
}

.hero-panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 26px;
  box-shadow: 0 18px 60px rgba(28, 47, 84, 0.12);
}

.hero-panel h2 {
  font-size: 22px;
  margin-bottom: 18px;
}

.hero-panel article {
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.hero-panel span,
.tag,
.article-card small {
  color: var(--green);
  font-weight: 800;
  font-size: 13px;
}

.notice {
  margin-top: 24px;
  padding: 16px 18px;
  background: #fff8e8;
  border: 1px solid #f3d99a;
  border-radius: 8px;
  color: #5b4821;
}

.notice p {
  margin: 0;
}

.notice p + p {
  margin-top: 8px;
}

.notice-contact {
  color: #13233f;
  font-size: 16px;
}

.section {
  padding: 70px 0;
}

.section.compact {
  padding-top: 20px;
}

.section-head {
  max-width: 760px;
  margin-bottom: 26px;
}

.section-head h2,
.split h2,
.cta h2 {
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.18;
  letter-spacing: 0;
}

.cards,
.article-grid {
  display: grid;
  gap: 18px;
}

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

.card,
.article-card,
.faq details {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.card {
  padding: 24px;
}

.card h3,
.article-card h3 {
  font-size: 22px;
  margin: 8px 0 10px;
}

.card p,
.article-card p,
.split p,
.faq p,
.cta p {
  color: var(--muted);
}

.card a {
  color: var(--brand-dark);
  font-weight: 800;
}

.category-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.category-bar a {
  padding: 10px 14px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: #344055;
  font-weight: 700;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.product {
  padding: 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(28, 47, 84, 0.08);
}

.product-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.product-top strong {
  font-size: 20px;
}

.badge {
  padding: 4px 8px;
  border-radius: 999px;
  background: #eaf2ff;
  color: var(--brand-dark);
  font-size: 12px;
  font-weight: 800;
}

.badge.hot {
  background: #fff1d4;
  color: #9a6400;
}

.product p {
  min-height: 54px;
  color: var(--muted);
}

.price {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.price small {
  color: var(--muted);
}

.price b {
  color: #e13b2f;
  font-size: 30px;
}

.buy {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 40px;
  margin-top: 14px;
  color: #fff;
  background: var(--brand);
  border-radius: 8px;
  font-weight: 800;
}

.band {
  background: #10213b;
  color: #fff;
  padding: 70px 0;
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 36px;
  align-items: start;
}

.split p {
  color: #c6d1e3;
}

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

.feature-list div {
  padding: 18px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
}

.feature-list b,
.feature-list span {
  display: block;
}

.feature-list span {
  color: #c6d1e3;
  margin-top: 6px;
}

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

.article-card {
  display: block;
  padding: 20px;
}

.faq {
  display: grid;
  gap: 12px;
}

.faq details {
  padding: 18px 20px;
}

.faq summary {
  cursor: pointer;
  font-weight: 800;
}

.faq p {
  margin: 12px 0 0;
}

.cta {
  padding: 48px 0;
  background: #eaf2ff;
}

.cta-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}

.site-footer {
  padding: 28px 0;
  color: #7a8495;
  background: #fff;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

.site-footer p {
  margin: 4px 0;
}

.article-hero {
  padding: 64px 0 40px;
  background:
    radial-gradient(circle at 18% 20%, rgba(15, 103, 255, 0.12), transparent 30%),
    #fff;
  border-bottom: 1px solid var(--line);
}

.article-hero h1 {
  max-width: 900px;
  font-size: clamp(34px, 5vw, 54px);
}

.article-page {
  max-width: 920px;
  padding: 34px 0 70px;
}

.article-page h2 {
  margin-top: 34px;
  font-size: 28px;
}

.article-page p,
.article-page li {
  color: #455169;
  font-size: 17px;
}

.article-list {
  padding-left: 22px;
}

.article-tips {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.article-tips section,
.related-box {
  padding: 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.article-tips h3 {
  font-size: 19px;
}

.article-page details {
  padding: 16px 18px;
  margin-bottom: 10px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.article-page summary {
  cursor: pointer;
  font-weight: 800;
}

.related-box a {
  display: block;
  padding: 10px 0;
  color: var(--brand-dark);
  font-weight: 800;
  border-top: 1px solid var(--line);
}

.related-box a:first-of-type {
  border-top: 0;
}

@media (max-width: 860px) {
  .nav,
  .cta-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    width: 100%;
    overflow-x: auto;
  }

  .hero-grid,
  .split,
  .cards.three,
  .article-grid,
  .product-grid,
  .article-tips,
  .feature-list {
    grid-template-columns: 1fr;
  }

  .ticker-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 10px 0;
    gap: 4px;
  }

  .hero-grid {
    min-height: auto;
    padding: 42px 0;
  }
}