/* ====== 全局基础样式 ====== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  color: #0f172a;
  background: radial-gradient(circle at top, #0f172a 0, #020617 45%, #020617 100%);
  min-height: 100vh;
}

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

.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
}

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

/* ====== 布局容器 ====== */
.site-header,
.site-main,
.site-footer {
  color: #e5e7eb;
}

.site-header__inner,
.site-footer__inner,
.blog-section {
  max-width: 1040px;
  margin: 0 auto;
  padding: 1.5rem 1.5rem;
}

@media (min-width: 768px) {
  .site-header__inner,
  .site-footer__inner,
  .blog-section {
    padding: 2.5rem 1.5rem 2rem;
  }
}

/* ====== 顶部 Hero 区 ====== */
.site-header {
  border-bottom: 1px solid rgba(148, 163, 184, 0.35);
  backdrop-filter: blur(12px);
  background: radial-gradient(circle at top, rgba(56, 189, 248, 0.2), transparent 55%);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 3fr);
  gap: 2rem;
}

@media (min-width: 900px) {
  .hero {
    grid-template-columns: minmax(0, 2.2fr) minmax(0, 1.4fr);
    align-items: center;
  }
}

.hero__text {
  padding-right: 0.5rem;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.7);
  background: rgba(15, 23, 42, 0.7);
  color: #e5e7eb;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.hero__title {
  margin: 0 0 0.5rem;
  font-size: clamp(2.1rem, 3vw, 2.6rem);
  font-weight: 700;
  letter-spacing: 0.03em;
}

.hero__subtitle {
  margin: 0 0 0.75rem;
  font-size: 0.98rem;
  line-height: 1.7;
  color: #cbd5f5;
}

.hero__goal {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.7;
  color: #a5b4fc;
}

.hero__section-title {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: #e5e7eb;
}

.hero__contact {
  padding: 1.2rem 1.2rem 1.1rem;
  background: radial-gradient(circle at top left, rgba(59, 130, 246, 0.35), transparent 55%),
    radial-gradient(circle at bottom right, rgba(236, 72, 153, 0.28), transparent 55%);
  border-radius: 1.1rem;
  border: 1px solid rgba(148, 163, 184, 0.55);
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.75);
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 0.4rem 0 0.75rem;
}

.contact-list__item {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  margin-bottom: 0.55rem;
}

.contact-list__label {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #c4d3ff;
}

.contact-list__value {
  font-size: 0.9rem;
  padding: 0.25rem 0.55rem;
  border-radius: 0.55rem;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(148, 163, 184, 0.6);
  color: #e5e7eb;
  word-break: break-all;
}

.hero__note {
  margin: 0.5rem 0 0;
  font-size: 0.85rem;
  color: #e5e7eb;
  line-height: 1.6;
}

/* ====== 博客列表区域 ====== */
.blog-section {
  padding-top: 2.2rem;
  padding-bottom: 3.2rem;
}

.section-title {
  margin: 0 0 0.4rem;
  font-size: 1.5rem;
  font-weight: 600;
}

.section-subtitle {
  margin: 0 0 1.8rem;
  font-size: 0.92rem;
  color: #cbd5f5;
  max-width: 640px;
  line-height: 1.7;
}

.blog-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.1rem;
  margin-bottom: 2.4rem;
}

@media (min-width: 780px) {
  .blog-list {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.2fr);
  }
}

.blog-card {
  position: relative;
  padding: 1rem 1rem 1.05rem;
  border-radius: 1rem;
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.16), transparent 60%),
    radial-gradient(circle at bottom right, rgba(94, 234, 212, 0.14), transparent 60%),
    rgba(15, 23, 42, 0.92);
  border: 1px solid rgba(148, 163, 184, 0.5);
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.8);
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease,
    background 160ms ease;
}

.blog-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 22px 55px rgba(15, 23, 42, 0.9);
  border-color: rgba(191, 219, 254, 0.85);
}

.blog-card__title {
  margin: 0 0 0.4rem;
  font-size: 1.02rem;
  font-weight: 600;
  color: #e5e7eb;
}

.blog-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.5rem;
  font-size: 0.78rem;
  color: #cbd5f5;
}

.blog-card__date {
  padding: 0.1rem 0.4rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(148, 163, 184, 0.7);
}

.blog-card__tag {
  padding: 0.1rem 0.4rem;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.4);
  border: 1px solid rgba(191, 219, 254, 0.8);
}

.blog-card__excerpt {
  margin: 0 0 0.75rem;
  font-size: 0.86rem;
  line-height: 1.7;
  color: #e5e7eb;
}

.blog-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #bfdbfe;
}

.blog-card__cta-icon {
  font-size: 0.9rem;
}

/* ====== 博客详情区域 ====== */
.blog-detail {
  padding: 1.2rem 1.1rem 1.3rem;
  border-radius: 1.2rem;
  border: 1px dashed rgba(148, 163, 184, 0.6);
  background: linear-gradient(
      135deg,
      rgba(15, 23, 42, 0.9),
      rgba(15, 23, 42, 0.97)
    );
  min-height: 160px;
}

.blog-detail__placeholder {
  font-size: 0.9rem;
  color: #9ca3af;
}

.blog-detail__loading {
  font-size: 0.88rem;
  color: #d1fae5;
}

.blog-detail__error {
  font-size: 0.88rem;
  color: #fecaca;
}

/* ====== 博客文章模块统一样式 ====== */
.blog-article {
  color: #e5e7eb;
  max-width: 720px;
}

.blog-article__title {
  margin: 0 0 0.4rem;
  font-size: 1.4rem;
  font-weight: 600;
}

.blog-article__meta {
  margin: 0 0 1rem;
  font-size: 0.8rem;
  color: #cbd5f5;
}

.blog-article__meta span {
  margin-right: 0.6rem;
}

.blog-article__section-title {
  margin: 1.1rem 0 0.35rem;
  font-size: 1rem;
  font-weight: 600;
  color: #e5e7eb;
}

.blog-article__paragraph {
  margin: 0 0 0.6rem;
  font-size: 0.9rem;
  line-height: 1.8;
  color: #e5e7eb;
}

.blog-article__list {
  margin: 0.1rem 0 0.8rem 1.1rem;
  padding: 0;
  font-size: 0.9rem;
  line-height: 1.7;
}

.blog-article__list li {
  margin-bottom: 0.35rem;
}

.blog-article__code {
  margin: 0.5rem 0 0.9rem;
  padding: 0.55rem 0.7rem;
  border-radius: 0.6rem;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid rgba(148, 163, 184, 0.6);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
  font-size: 0.78rem;
  white-space: pre-wrap;
  word-break: break-all;
}

/* ====== 底部区域 ====== */
.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.35);
  background: radial-gradient(circle at bottom, rgba(56, 189, 248, 0.16), transparent 55%);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
  font-size: 0.88rem;
  color: #e5e7eb;
}

@media (min-width: 900px) {
  .site-footer__inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1.1fr);
  }
}

.footer__title {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.footer__subtitle {
  margin: 0 0 0.4rem;
  font-size: 0.92rem;
}

.footer__line {
  margin: 0 0 0.25rem;
}

.footer__label {
  color: #9ca3af;
}

.footer__value {
  color: #e5e7eb;
}

.footer__meta {
  grid-column: 1 / -1;
  font-size: 0.8rem;
  color: #9ca3af;
  margin-top: 0.5rem;
}