:root {
  --bg: #f7f4ee;
  --surface: #ffffff;
  --ink: #15213a;
  --muted: #5f697a;
  --line: #d9deea;
  --blue: #17365d;
  --blue-2: #1f4e79;
  --gold: #d9962f;
  --green: #1f7a4d;
  --red: #a94235;
  --soft-blue: #eaf2fb;
  --soft-gold: #fff2d7;
  --shadow: 0 20px 60px rgba(23, 54, 93, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

img {
  display: block;
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 5vw, 72px);
  background: rgba(247, 244, 238, 0.92);
  border-bottom: 1px solid rgba(23, 54, 93, 0.1);
  backdrop-filter: blur(16px);
}

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

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: #fff;
  background: var(--blue);
  border-radius: 12px;
  font-weight: 900;
}

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

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

.nav {
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}

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

.section {
  padding: clamp(54px, 8vw, 92px) clamp(18px, 5vw, 72px);
}

.compact {
  padding-top: 36px;
}

.alt {
  background: #fff;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(320px, 0.82fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  min-height: min(760px, calc(100svh - 72px));
  background:
    radial-gradient(circle at 88% 8%, rgba(217, 150, 47, 0.24), transparent 32%),
    linear-gradient(135deg, #f8f4ec 0%, #edf5fb 100%);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--gold);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

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

h1 {
  max-width: 780px;
  margin-bottom: 18px;
  font-size: clamp(38px, 6vw, 72px);
  line-height: 1.08;
  letter-spacing: -0.04em;
  overflow-wrap: anywhere;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.18;
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
}

.lead {
  max-width: 720px;
  color: var(--muted);
  font-size: 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 28px 0 24px;
}

.hero-copy {
  min-width: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  border: 1px solid transparent;
}

.btn.primary {
  color: #fff;
  background: var(--blue);
  box-shadow: 0 12px 28px rgba(23, 54, 93, 0.22);
}

.btn.secondary {
  color: var(--blue);
  background: #fff;
  border-color: rgba(23, 54, 93, 0.18);
}

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

.trust-list li,
.pill-list li {
  padding: 8px 12px;
  color: var(--blue);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(23, 54, 93, 0.12);
  border-radius: 999px;
  font-weight: 700;
}

.hero-card {
  position: relative;
  min-width: 0;
  padding: 18px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(23, 54, 93, 0.12);
  border-radius: 26px;
  box-shadow: var(--shadow);
}

.hero-card img {
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
}

.hero-card p {
  margin: 14px 4px 0;
  color: var(--muted);
}

.price-badge {
  position: absolute;
  top: -18px;
  right: 22px;
  padding: 10px 16px;
  color: #fff;
  background: var(--gold);
  border-radius: 999px;
  font-size: 22px;
  font-weight: 900;
  box-shadow: 0 12px 28px rgba(217, 150, 47, 0.35);
}

.section-title {
  max-width: 820px;
  margin: 0 auto 34px;
  text-align: center;
}

.section-title.left {
  margin-inline: 0;
  text-align: left;
}

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

.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.mini-card,
.case-card,
.price-card,
.notice,
.qr-card,
.contact-copy {
  background: var(--surface);
  border: 1px solid rgba(23, 54, 93, 0.1);
  border-radius: 22px;
  box-shadow: 0 12px 36px rgba(23, 54, 93, 0.08);
}

.mini-card {
  padding: 24px;
}

.mini-card p,
.case-card p,
.notice p {
  color: var(--muted);
}

.deliverable-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 24px;
}

.check-list {
  display: grid;
  gap: 12px;
}

.check-list div {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 18px;
  padding: 18px 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
}

.check-list strong {
  color: var(--blue);
}

.check-list span {
  color: var(--muted);
}

.notice {
  padding: 24px;
  background: var(--soft-gold);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.price-card {
  padding: 22px;
}

.price-card span {
  color: var(--muted);
  font-weight: 700;
}

.price-card strong {
  display: block;
  margin: 12px 0;
  color: var(--blue);
  font-size: 30px;
  line-height: 1;
}

.price-card.featured {
  border-color: rgba(217, 150, 47, 0.55);
  background: linear-gradient(180deg, #fff, #fff7e8);
}

.addons {
  margin-top: 18px;
  padding: 18px 22px;
  background: var(--soft-blue);
  border: 1px solid rgba(23, 54, 93, 0.12);
  border-radius: 18px;
}

.addons span {
  color: var(--blue);
  font-weight: 900;
}

.addons p {
  margin: 6px 0 0;
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.pill-list.negative li {
  color: var(--red);
  background: #fff1ee;
}

.pill-list.positive li {
  color: var(--green);
  background: #edf8f1;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.case-card {
  padding: 24px;
}

.case-card span {
  color: var(--gold);
  font-weight: 900;
}

.case-card small {
  display: inline-flex;
  padding: 8px 10px;
  color: var(--blue);
  background: var(--soft-blue);
  border-radius: 999px;
  font-weight: 700;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  padding: 0;
  margin: 0;
  list-style: none;
  counter-reset: step;
}

.steps li {
  position: relative;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
}

.steps li::before {
  counter-increment: step;
  content: counter(step);
  display: grid;
  width: 34px;
  height: 34px;
  margin-bottom: 14px;
  place-items: center;
  color: #fff;
  background: var(--blue);
  border-radius: 50%;
  font-weight: 900;
}

.steps strong,
.steps span {
  display: block;
}

.steps span {
  margin-top: 8px;
  color: var(--muted);
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 24px;
  background: linear-gradient(135deg, var(--blue) 0%, #244d71 100%);
  color: #fff;
}

.contact-copy,
.qr-card {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.22);
  box-shadow: none;
}

.contact-copy {
  padding: 32px;
}

.contact-copy p {
  color: rgba(255, 255, 255, 0.78);
}

.wechat-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 22px;
  padding: 16px;
  color: var(--ink);
  background: #fff;
  border-radius: 18px;
}

.wechat-line span {
  color: var(--muted);
}

.wechat-line strong {
  font-size: 24px;
}

.copy-btn {
  height: 38px;
  padding: 0 14px;
  color: #fff;
  background: var(--green);
  border: 0;
  border-radius: 999px;
  font-weight: 800;
  cursor: pointer;
}

.small {
  margin: 12px 0 0;
  font-size: 13px;
}

.qr-card {
  display: grid;
  place-items: center;
  padding: 26px;
  text-align: center;
}

.qr-card img {
  width: 220px;
  height: 220px;
  margin-bottom: 14px;
  background: #fff;
  border-radius: 20px;
}

.qr-card span {
  color: rgba(255, 255, 255, 0.78);
}

.footer {
  padding: 28px clamp(18px, 5vw, 72px) 92px;
  color: var(--muted);
  background: #fff;
  border-top: 1px solid var(--line);
}

.footer p {
  margin: 0 0 6px;
}

.sticky-cta {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 30;
  display: flex;
  gap: 10px;
}

.sticky-cta a {
  padding: 12px 16px;
  color: #fff;
  background: var(--blue);
  border-radius: 999px;
  font-weight: 900;
  box-shadow: 0 10px 28px rgba(23, 54, 93, 0.24);
}

.sticky-cta a + a {
  background: var(--gold);
}

@media (max-width: 980px) {
  .hero,
  .deliverable-layout,
  .split,
  .contact {
    grid-template-columns: 1fr;
  }

  .grid.four,
  .pricing-grid,
  .case-grid,
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .nav {
    display: none;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding: 12px 16px;
  }

  .section {
    padding: 46px 16px;
    max-width: 100vw;
    overflow-x: hidden;
  }

  .hero {
    grid-template-columns: minmax(0, 1fr);
    min-height: auto;
  }

  h1 {
    max-width: calc(100vw - 32px);
    font-size: clamp(32px, 10vw, 40px);
  }

  .lead {
    max-width: calc(100vw - 32px);
    font-size: 17px;
  }

  .hero-copy,
  .hero-card {
    width: 100%;
    max-width: calc(100vw - 32px);
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .hero-card {
    padding: 12px;
    overflow: hidden;
    width: 100%;
  }

  .price-badge {
    right: 8px;
  }

  .grid.four,
  .pricing-grid,
  .case-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .check-list div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .sticky-cta {
    right: 10px;
    left: 10px;
    justify-content: center;
  }

  .sticky-cta a {
    flex: 1;
    text-align: center;
  }
}