/* 基础变量 */
:root {
  --primary: #165dff;
  --accent: #36cfc9;
  --text: #1d2129;
  --muted: #4e5969;
  --background: #f7f8fa;
  --shadow: 0 16px 40px rgba(25, 36, 64, 0.08);
  --shadow-hover: 0 22px 48px rgba(22, 93, 255, 0.16);
  --danger: #f53f3f;
  --radius: 14px;
  --container: 1180px;
}

/* 全局基础 */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(54, 207, 201, 0.12), transparent 24%),
    linear-gradient(180deg, #fbfcff 0%, var(--background) 55%, #f4f8ff 100%);
}

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

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

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

/* 头部导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
  background: rgba(247, 248, 250, 0.86);
  border-bottom: 1px solid rgba(22, 93, 255, 0.08);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand strong {
  display: block;
  font-size: 1rem;
}

.brand-mark {
  width: 44px;
  aspect-ratio: 1;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #5b8cff);
  box-shadow: 0 10px 24px rgba(22, 93, 255, 0.24);
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.top-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 0.95rem;
  color: var(--muted);
  transition: color 0.2s ease, background-color 0.2s ease;
}

.top-nav a:hover,
.top-nav a.is-active,
.top-nav a[aria-current="page"] {
  color: var(--primary);
  background: rgba(22, 93, 255, 0.08);
}

/* 首屏与通用标题 */
.hero-section,
.page-hero {
  padding: 48px 0 24px;
}

.hero-grid,
.page-hero-inner,
.order-layout {
  display: grid;
  gap: 24px;
}

.hero-grid {
  grid-template-columns: minmax(0, 1fr) 320px;
  align-items: stretch;
}

.hero-copy,
.page-hero-inner,
.order-card,
.category-card,
.resource-card,
.entry-card,
.panel-card {
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 36px;
  border-radius: 26px;
  overflow: hidden;
  position: relative;
}

.hero-copy::after,
.page-hero-inner::after {
  content: "";
  position: absolute;
  inset: auto -50px -70px auto;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(22, 93, 255, 0.18), rgba(22, 93, 255, 0));
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--primary);
  background: rgba(22, 93, 255, 0.08);
  font-size: 0.86rem;
  font-weight: 700;
}

h1,
h2,
h3,
p,
ul,
ol {
  margin: 0;
}

h1 {
  margin-top: 18px;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.08;
}

h2 {
  font-size: clamp(1.5rem, 2vw, 2.2rem);
  line-height: 1.18;
}

h3 {
  font-size: 1.12rem;
  line-height: 1.35;
}

p,
li,
span,
small {
  line-height: 1.65;
}

.hero-subtitle,
.section-heading p,
.page-hero-inner p,
.resource-meta,
.muted-copy,
.contact-copy,
.entry-card span,
.category-card p,
.resource-features li,
.panel-card p,
.panel-card li {
  color: var(--muted);
}

.hero-subtitle {
  margin-top: 16px;
  max-width: 58ch;
  font-size: 1.05rem;
}

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

/* 按钮 */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #4581ff);
  box-shadow: 0 14px 26px rgba(22, 93, 255, 0.24);
}

.button-secondary {
  color: var(--primary);
  background: rgba(22, 93, 255, 0.08);
}

.full-width {
  width: 100%;
}

.text-link {
  color: var(--primary);
  font-weight: 700;
}

/* 卡片与网格 */
.panel-card,
.page-hero-inner,
.order-card {
  border-radius: 22px;
  padding: 22px;
  position: relative;
  overflow: hidden;
}

.panel-price strong,
.resource-price strong {
  display: block;
  font-size: 1.25rem;
  color: var(--text);
}

.hero-panel {
  display: grid;
  gap: 18px;
}

.panel-price strong {
  margin-top: 14px;
}

.resource-features,
.order-list {
  padding-left: 18px;
}

.panel-price {
  background: linear-gradient(180deg, rgba(22, 93, 255, 0.08), rgba(255, 255, 255, 0.92));
}

.section-block {
  padding: 28px 0 56px;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 22px;
}

.section-heading > div {
  min-width: 0;
}

.section-heading h2 {
  margin-top: 12px;
}

.section-heading p {
  max-width: 56ch;
}

.category-grid,
.resource-grid,
.entry-grid {
  display: grid;
  gap: 18px;
}

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

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

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

.category-card,
.resource-card,
.entry-card {
  border-radius: var(--radius);
  padding: 22px;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.category-card:hover,
.resource-card:hover,
.entry-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(22, 93, 255, 0.2);
}

.category-icon,
.resource-cover {
  display: grid;
  place-items: center;
  border-radius: 14px;
}

.category-icon {
  width: 72px;
  aspect-ratio: 1;
  margin-bottom: 18px;
  color: var(--primary);
  font-size: 1rem;
  font-weight: 800;
  background: linear-gradient(135deg, rgba(22, 93, 255, 0.1), rgba(54, 207, 201, 0.18));
}

.entry-card {
  display: grid;
  gap: 8px;
}

.entry-card strong {
  font-size: 1.02rem;
}

.page-hero-inner,
.order-layout {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
}

.resource-card {
  display: grid;
  gap: 16px;
}

.resource-cover {
  min-height: 132px;
  padding: 20px;
  align-items: end;
  background: linear-gradient(135deg, rgba(22, 93, 255, 0.1), rgba(54, 207, 201, 0.12));
  border: 1px solid rgba(22, 93, 255, 0.08);
}

.resource-cover span {
  display: inline-flex;
  width: fit-content;
  padding: 7px 10px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary);
  background: rgba(255, 255, 255, 0.78);
}

.resource-body {
  display: grid;
  gap: 14px;
}

.resource-meta {
  font-size: 0.95rem;
}

.resource-price {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.resource-price del {
  color: #86909c;
}

.resource-price strong {
  color: var(--danger);
  font-size: 1.34rem;
}

.resource-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.resource-tag {
  display: inline-flex;
  width: fit-content;
  padding: 6px 10px;
  border-radius: 999px;
  color: #0f8d88;
  background: rgba(54, 207, 201, 0.14);
  font-size: 0.82rem;
  font-weight: 700;
}

/* 页脚与下单区 */
.site-footer {
  padding: 26px 0 34px;
  border-top: 1px solid rgba(22, 93, 255, 0.08);
  background: rgba(255, 255, 255, 0.72);
}

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

.footer-grid h3 {
  margin-bottom: 8px;
}

.order-card {
  min-height: 100%;
}

.qr-card {
  min-width: min(100%, 360px);
}

.qr-frame {
  margin: 18px 0 16px;
  width: min(100%, 280px);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(22, 93, 255, 0.1);
  background: #fff;
  margin-inline: auto;
  box-shadow: 0 10px 24px rgba(25, 36, 64, 0.08);
}

.qr-image {
  width: 100%;
  height: auto;
  display: block;
}

/* 响应式 */
@media (max-width: 1024px) {
  .hero-grid,
  .resource-grid,
  .entry-grid,
  .footer-grid,
  .page-hero-inner,
  .order-layout {
    grid-template-columns: 1fr;
  }

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

  .section-heading {
    align-items: start;
    flex-direction: column;
  }
}

@media (max-width: 720px) {
  .nav-shell {
    min-height: auto;
    align-items: start;
    padding: 12px 0;
    flex-direction: column;
    gap: 12px;
  }

  .top-nav {
    width: 100%;
    justify-content: flex-start;
    gap: 8px;
  }

  .top-nav a {
    padding: 8px 12px;
    font-size: 0.9rem;
  }

  .hero-copy,
  .page-hero-inner,
  .order-card,
  .panel-card,
  .category-card,
  .resource-card,
  .entry-card {
    padding: 18px;
  }

  .hero-section,
  .page-hero {
    padding: 24px 0 14px;
  }

  .section-block {
    padding: 20px 0 36px;
  }

  .hero-copy {
    padding: 22px 18px;
    border-radius: 20px;
  }

  .page-hero-inner,
  .order-card,
  .panel-card {
    border-radius: 18px;
  }

  .hero-copy::after,
  .page-hero-inner::after {
    width: 160px;
    height: 160px;
    inset: auto -40px -50px auto;
  }

  .hero-subtitle {
    margin-top: 12px;
    font-size: 0.96rem;
  }

  .hero-actions {
    margin-top: 20px;
    gap: 10px;
  }

  .section-heading {
    margin-bottom: 16px;
    gap: 10px;
  }

  .section-heading h2 {
    margin-top: 8px;
  }

  .category-grid,
  .resource-grid,
  .entry-grid {
    grid-template-columns: 1fr;
  }

  .category-card,
  .entry-card,
  .resource-card {
    gap: 10px;
  }

  .category-icon {
    width: 64px;
    margin-bottom: 14px;
    font-size: 0.92rem;
  }

  .resource-cover {
    min-height: 104px;
    padding: 16px;
  }

  .resource-body {
    gap: 12px;
  }

  .resource-price strong {
    font-size: 1.24rem;
  }

  .order-layout {
    gap: 18px;
  }

  .qr-card {
    min-width: 100%;
  }

  .qr-frame {
    width: min(100%, 240px);
    margin: 14px auto 12px;
  }

  .button,
  .resource-actions .button {
    width: 100%;
    min-height: 46px;
  }

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

  .container {
    width: min(var(--container), calc(100% - 20px));
  }

  h1 {
    font-size: 2.1rem;
  }

  h2 {
    font-size: 1.4rem;
  }
}