/* 糖心vlog 扁平化响应式主题 — 纯 CSS */
:root {
  --rose-50: #fff5f7;
  --rose-100: #ffe4e9;
  --rose-200: #fecdd6;
  --rose-400: #fb7185;
  --rose-500: #f43f5e;
  --rose-600: #e11d48;
  --cream: #fffbf7;
  --ink: #1c1917;
  --ink-muted: #57534e;
  --ink-soft: #78716c;
  --white: #ffffff;
  --card-shadow: 0 4px 24px rgba(244, 63, 94, 0.08);
  --radius: 14px;
  --radius-sm: 10px;
  --max: 1120px;
  --header-h: 64px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: linear-gradient(180deg, var(--rose-50) 0%, var(--cream) 45%, var(--white) 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
  display: block;
}

a {
  color: var(--rose-600);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

/* —— 顶栏 —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 251, 247, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rose-100);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: var(--header-h);
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--ink);
}

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

.brand a:hover {
  color: var(--rose-600);
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--rose-400), var(--rose-600));
  display: grid;
  place-items: center;
  font-size: 1.25rem;
  box-shadow: var(--card-shadow);
}

/* 移动端菜单：checkbox hack */
.nav-toggle {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.nav-toggle-label {
  display: none;
  cursor: pointer;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--rose-100);
  color: var(--rose-600);
  font-weight: 600;
  border: 1px solid var(--rose-200);
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  align-items: center;
}

.site-nav a {
  display: inline-block;
  padding: 8px 10px;
  border-radius: 8px;
  color: var(--ink-muted);
  font-size: 0.95rem;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--rose-100);
  color: var(--rose-600);
}

@media (max-width: 900px) {
  .nav-toggle-label {
    display: block;
    margin-left: auto;
  }

  .site-nav {
    width: 100%;
    order: 3;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }

  .nav-toggle:focus-visible + .nav-toggle-label {
    outline: 2px solid var(--rose-500);
    outline-offset: 2px;
  }

  .nav-toggle:checked ~ .site-nav {
    max-height: 480px;
  }

  .site-nav ul {
    flex-direction: column;
    align-items: stretch;
    padding: 12px 0 8px;
    border-top: 1px solid var(--rose-100);
  }

  .site-nav a {
    padding: 12px 14px;
  }
}

/* —— Hero —— */
.hero {
  padding: 48px 0 40px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}

@media (min-width: 880px) {
  .hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 48px;
  }
}

.hero h1 {
  font-size: clamp(1.65rem, 4vw, 2.25rem);
  line-height: 1.25;
  margin: 0 0 16px;
  color: var(--ink);
}

.lead {
  font-size: 1.05rem;
  color: var(--ink-muted);
  margin: 0 0 20px;
}

.intro-copy {
  font-size: 1rem;
  color: var(--ink-soft);
  line-height: 1.85;
  margin: 0;
}

.intro-copy p {
  margin: 0 0 1em;
}

.intro-copy p:last-child {
  margin-bottom: 0;
}

.hero-visual {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--rose-100);
  background: var(--white);
}

.hero-visual img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--rose-500), var(--rose-600));
  color: var(--white);
  box-shadow: 0 6px 20px rgba(225, 29, 72, 0.35);
}

.btn-ghost {
  background: var(--white);
  color: var(--rose-600);
  border: 2px solid var(--rose-200);
}

/* —— 区块标题 —— */
.section {
  padding: 40px 0;
}

.section-head {
  margin-bottom: 24px;
}

.section-head h2 {
  margin: 0 0 8px;
  font-size: clamp(1.35rem, 3vw, 1.6rem);
}

.section-head p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

/* —— 卡片网格 —— */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 560px) {
  .card-grid.two {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 820px) {
  .card-grid.three {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--rose-100);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  border-color: var(--rose-200);
  box-shadow: 0 8px 32px rgba(244, 63, 94, 0.12);
}

.card-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--rose-50);
}

.card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-body {
  padding: 18px 20px 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-body h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.card-body h3 a {
  color: var(--ink);
  text-decoration: none;
}

.card-body h3 a:hover {
  color: var(--rose-600);
}

.card-meta {
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-bottom: 10px;
}

.card-body p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--ink-muted);
  flex: 1;
}

.card-footer {
  margin-top: 14px;
}

.tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--rose-50);
  color: var(--rose-600);
  font-size: 0.75rem;
  font-weight: 600;
}

/* —— 列表页 —— */
.page-hero {
  padding: 36px 0 28px;
  border-bottom: 1px solid var(--rose-100);
}

.page-hero h1 {
  margin: 0 0 10px;
  font-size: clamp(1.5rem, 3.5vw, 2rem);
}

.page-hero .excerpt {
  margin: 0;
  color: var(--ink-muted);
  max-width: 720px;
}

.list-stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 32px 0 48px;
}

.list-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  background: var(--white);
  border: 1px solid var(--rose-100);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--card-shadow);
}

@media (min-width: 640px) {
  .list-item {
    grid-template-columns: 200px 1fr;
    align-items: start;
  }
}

.list-item-thumb {
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--rose-50);
}

.list-item-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.list-item h2 {
  margin: 0 0 8px;
  font-size: 1.15rem;
}

.list-item h2 a {
  color: var(--ink);
  text-decoration: none;
}

.list-item h2 a:hover {
  color: var(--rose-600);
}

.list-item p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

/* —— 文章页 —— */
.article-wrap {
  padding: 32px 0 56px;
}

.article-header {
  max-width: 720px;
  margin-bottom: 28px;
}

.article-header h1 {
  margin: 0 0 12px;
  font-size: clamp(1.45rem, 3.2vw, 1.85rem);
  line-height: 1.3;
}

.article-meta {
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.article-cover {
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 28px;
  border: 1px solid var(--rose-100);
  box-shadow: var(--card-shadow);
}

.article-cover img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

@media (max-width: 600px) {
  .article-cover img {
    aspect-ratio: 16 / 10;
  }
}

.prose {
  max-width: 720px;
  font-size: 1rem;
  color: var(--ink-muted);
}

.prose h2 {
  margin: 1.6em 0 0.6em;
  font-size: 1.25rem;
  color: var(--ink);
}

.prose p {
  margin: 0 0 1em;
}

.prose ul {
  margin: 0 0 1em;
  padding-left: 1.25em;
}

.prose li {
  margin-bottom: 0.35em;
}

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

.related {
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid var(--rose-100);
}

.related h2 {
  margin: 0 0 16px;
  font-size: 1.2rem;
}

.related ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* —— 页脚 —— */
.site-footer {
  margin-top: auto;
  padding: 40px 0 28px;
  background: var(--ink);
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

@media (min-width: 720px) {
  .footer-grid {
    grid-template-columns: 1.4fr repeat(3, 1fr);
  }
}

.site-footer h3 {
  margin: 0 0 12px;
  font-size: 0.95rem;
  color: var(--white);
}

.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer li {
  margin-bottom: 8px;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--rose-200);
  text-decoration: underline;
}

.footer-bottom {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.85rem;
}

/* —— 面包屑 —— */
.breadcrumb {
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-bottom: 16px;
}

.breadcrumb a {
  color: var(--ink-muted);
}

/* —— 联系区块 —— */
.contact-box {
  background: var(--white);
  border: 1px solid var(--rose-100);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--card-shadow);
  max-width: 560px;
}

.contact-box p {
  margin: 0 0 8px;
  color: var(--ink-muted);
}