@import url('https://fonts.googleapis.com/css2?family=Atkinson+Hyperlegible:wght@400;700&display=swap');

/* ====== 变量 ====== */
:root {
  --c-primary: #eb879c;
  --c-accent: #ffb6c1;
  --c-dark: #26171a;
  --c-dark-80: rgba(38,23,26,0.8);
  --c-dark-60: rgba(38,23,26,0.6);
  --c-bg: #fff5f7;
  --c-bg2: #fff0f3;
  --c-text: #26171a;
  --c-text-soft: #5a3540;
  --c-border: rgba(235,135,156,0.25);
  --c-shadow-sm: 0 2px 8px rgba(235,135,156,0.18), 0 1px 3px rgba(38,23,26,0.08);
  --c-shadow-md: 0 4px 20px rgba(235,135,156,0.22), 0 2px 8px rgba(38,23,26,0.10);
  --c-shadow-lg: 0 8px 40px rgba(235,135,156,0.28), 0 4px 16px rgba(38,23,26,0.12);
  --radius: 10px;
  --radius-sm: 6px;
  --font: 'Atkinson Hyperlegible', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
  --trans: 220ms cubic-bezier(.4,0,.2,1);
  --max-w: 860px;
  --nav-h: 56px;
}

/* ====== 重置 ====== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-bg);
  min-height: 100vh;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--c-primary); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--c-dark); }
a:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ====== 全局容器 ====== */
.site-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
.page-body {
  flex: 1;
}

/* ====== 公告条 ====== */
.topbar-notice {
  background: var(--c-dark);
  color: var(--c-accent);
  font-size: 13px;
  text-align: center;
  padding: 6px 16px;
  letter-spacing: 0.04em;
}
.topbar-notice a { color: var(--c-accent); }

/* ====== 导航 header > nav > a×n ====== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(38,23,26,0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 12px rgba(235,135,156,0.15);
  height: var(--nav-h);
}
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
}
.nav-brand {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--c-accent);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.02em;
  min-height: 40px;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: color var(--trans);
}
.nav-brand:hover { color: var(--c-primary); }
.brand-mark { width: 36px; height: 36px; object-fit: contain; border-radius: 50%; }
.brand-text { font-size: 17px; }

.nav-burger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px 8px;
  min-height: 44px;
  min-width: 44px;
  border-radius: var(--radius-sm);
  transition: background var(--trans);
}
.nav-burger:hover { background: rgba(235,135,156,0.12); }
.nav-burger:focus-visible { outline: 2px solid var(--c-primary); outline-offset: 2px; }
.nav-burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-accent);
  border-radius: 2px;
  transition: transform var(--trans), opacity var(--trans);
}
.nav-burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger.is-open span:nth-child(2) { opacity: 0; }
.nav-burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ====== 全屏遮罩菜单 ====== */
.fullscreen-menu {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: var(--c-dark);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--trans);
}
.fullscreen-menu.is-open {
  opacity: 1;
  pointer-events: all;
}
.menu-close {
  position: absolute;
  top: 20px;
  right: 24px;
  background: none;
  border: none;
  color: var(--c-accent);
  font-size: 28px;
  cursor: pointer;
  min-height: 44px;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background var(--trans), color var(--trans);
}
.menu-close:hover { background: rgba(235,135,156,0.15); color: var(--c-primary); }
.menu-close:focus-visible { outline: 2px solid var(--c-primary); }

.menu-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: 100%;
  max-width: 480px;
  padding: 0 24px;
}
.menu-nav .nav-link {
  display: block;
  width: 100%;
  text-align: center;
  color: var(--c-accent);
  text-decoration: none;
  font-size: 18px;
  font-weight: 700;
  padding: 14px 20px;
  border-radius: var(--radius);
  letter-spacing: 0.03em;
  transition: background var(--trans), color var(--trans);
  min-height: 44px;
  border: 1px solid rgba(235,135,156,0.15);
}
.menu-nav .nav-link:hover,
.menu-nav .nav-link.is-active {
  background: rgba(235,135,156,0.12);
  color: var(--c-primary);
  border-color: rgba(235,135,156,0.4);
}
.menu-nav .nav-link:focus-visible { outline: 2px solid var(--c-primary); outline-offset: 2px; }

/* ====== Hero — 首页 ====== */
.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--c-dark);
}
.hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}
.hero-bg-text {
  position: absolute;
  right: -0.05em;
  top: 50%;
  transform: translateY(-55%);
  font-size: clamp(100px, 22vw, 260px);
  font-weight: 700;
  color: rgba(235,135,156,0.08);
  letter-spacing: -0.04em;
  line-height: 1;
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
}
.hero-content {
  position: relative;
  z-index: 2;
  margin-left: auto;
  max-width: 560px;
  padding: 60px 40px 120px 24px;
  text-align: right;
}
.hero-content h1 {
  font-size: clamp(28px, 5vw, 52px);
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 18px;
  text-shadow: 0 2px 12px rgba(38,23,26,0.5);
}
.hero-sub {
  color: var(--c-accent);
  font-size: clamp(15px, 2vw, 19px);
  margin-bottom: 28px;
  line-height: 1.6;
}
.hero-skew {
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 80px;
  background: var(--c-bg);
  clip-path: polygon(0 60%, 100% 0%, 100% 100%, 0% 100%);
  z-index: 3;
}

/* ====== 按钮 ====== */
.btn-primary {
  display: inline-block;
  background: var(--c-primary);
  color: var(--c-dark);
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
  padding: 13px 32px;
  border-radius: var(--radius);
  box-shadow: var(--c-shadow-md);
  transition: background var(--trans), box-shadow var(--trans), transform var(--trans);
  min-height: 44px;
  letter-spacing: 0.02em;
}
.btn-primary:hover {
  background: #e06880;
  color: var(--c-dark);
  box-shadow: var(--c-shadow-lg);
  transform: translateY(-2px);
}
.btn-primary:focus-visible { outline: 2px solid var(--c-dark); outline-offset: 3px; }

/* ====== Inner Hero（非首页大区块）====== */
.inner-hero {
  position: relative;
  min-height: 38vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: linear-gradient(135deg, var(--c-dark) 0%, #3d1e26 100%);
  padding-bottom: 80px;
}
.inner-hero .hero-bg-text {
  font-size: clamp(70px, 16vw, 180px);
  color: rgba(235,135,156,0.07);
  top: 50%;
}
.inner-hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 48px 24px 0;
}
.inner-hero-content h1 {
  font-size: clamp(26px, 4.5vw, 44px);
  font-weight: 700;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 12px;
}
.inner-hero-content p {
  color: var(--c-accent);
  font-size: 17px;
  max-width: 600px;
}
.inner-hero .hero-skew {
  background: var(--c-bg);
}

/* Feature hero 右对齐变体 */
.feature-hero {
  position: relative;
  min-height: 44vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: linear-gradient(120deg, var(--c-dark) 0%, #4a1e2a 100%);
  padding-bottom: 80px;
}
.feature-hero .hero-bg-text {
  font-size: clamp(70px, 16vw, 180px);
  top: 50%;
}
.feature-hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 48px 24px 0;
}
.feature-hero-content h1 {
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
  margin: 12px 0;
}
.feature-hero .hero-img {
  opacity: 0.25;
}
.feature-hero .hero-skew {
  background: var(--c-bg);
}

/* ====== 面包屑 ====== */
.breadcrumb {
  font-size: 13px;
  color: rgba(255,182,193,0.7);
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  align-items: center;
}
.breadcrumb a { color: var(--c-accent); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb span[aria-hidden] { color: rgba(255,182,193,0.4); }

/* ====== 正文容器 div > main > article ====== */
.main-content {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}
.article-body { width: 100%; }

/* ====== prose zone ====== */
.prose-zone {
  padding: 48px 0 40px;
}
.prose-zone h2,
.prose-zone h3,
.prose-zone h4 {
  color: var(--c-dark);
  line-height: 1.35;
  margin: 1.8em 0 0.6em;
}
.prose-zone h2 { font-size: clamp(20px, 3vw, 28px); }
.prose-zone h3 { font-size: clamp(18px, 2.5vw, 22px); }
.prose-zone p { margin-bottom: 1.1em; }
.prose-zone ul,
.prose-zone ol {
  padding-left: 1.4em;
  margin-bottom: 1.1em;
}
.prose-zone li { margin-bottom: 0.4em; }
.prose-zone blockquote {
  border-left: 3px solid var(--c-primary);
  padding: 12px 20px;
  margin: 1.5em 0;
  background: rgba(235,135,156,0.07);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--c-text-soft);
}
.prose-zone a {
  color: var(--c-primary);
  font-weight: 700;
}
.prose-zone table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.4em 0;
  font-size: 15px;
}
.prose-zone th,
.prose-zone td {
  border: 1px solid var(--c-border);
  padding: 10px 14px;
  text-align: left;
}
.prose-zone th {
  background: rgba(235,135,156,0.12);
  font-weight: 700;
}
.prose-zone code {
  background: rgba(38,23,26,0.07);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}
.prose-zone pre {
  background: var(--c-dark);
  color: var(--c-accent);
  padding: 18px 20px;
  border-radius: var(--radius);
  overflow-x: auto;
  margin: 1.4em 0;
  font-size: 14px;
}

/* 发布日期 */
.pub-date {
  display: inline-block;
  font-size: 13px;
  color: var(--c-accent);
  letter-spacing: 0.03em;
}

/* ====== 眉题 small ====== */
.eyebrow {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--c-primary);
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* ====== 内容带 ====== */
.content-band {
  padding: 40px 0;
  border-top: 1px solid var(--c-border);
}
.content-band h2 {
  font-size: clamp(20px, 3vw, 28px);
  color: var(--c-dark);
  margin-bottom: 24px;
  line-height: 1.3;
}
.content-band p { margin-bottom: 1em; color: var(--c-text-soft); }

/* ====== 卡片列表 ul > li > article > h3/p ====== */
.card-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
  padding: 0;
}
.card-grid li { list-style: none; }
.card {
  background: #fff;
  border-radius: 0;
  box-shadow: var(--c-shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--trans), transform var(--trans);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.card:hover {
  box-shadow: var(--c-shadow-md);
  transform: translateY(-3px);
}
.card-thumb {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}
.card h3 {
  font-size: 16px;
  font-weight: 700;
  margin: 14px 16px 6px;
  line-height: 1.4;
}
.card h3 a {
  color: var(--c-dark);
  text-decoration: none;
}
.card h3 a:hover { color: var(--c-primary); }
.card p {
  font-size: 14px;
  color: var(--c-text-soft);
  margin: 0 16px 14px;
  flex: 1;
  line-height: 1.55;
}
.card-date {
  display: block;
  font-size: 12px;
  color: var(--c-primary);
  margin: 0 16px 14px;
}

/* ====== Link list ====== */
.link-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.link-list li { list-style: none; }
.link-list a {
  display: inline-block;
  background: rgba(235,135,156,0.1);
  color: var(--c-dark);
  text-decoration: none;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 15px;
  box-shadow: var(--c-shadow-sm);
  min-height: 44px;
  line-height: 1.4;
  transition: background var(--trans), box-shadow var(--trans);
}
.link-list a:hover {
  background: var(--c-primary);
  color: #fff;
  box-shadow: var(--c-shadow-md);
}

/* ====== Contact form ====== */
.contact-form-block {
  padding: 40px 0;
  border-top: 1px solid var(--c-border);
}
.contact-form-block h2 {
  font-size: clamp(20px, 3vw, 26px);
  color: var(--c-dark);
  margin-bottom: 24px;
}
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 520px;
}
.contact-form label {
  font-size: 14px;
  font-weight: 700;
  color: var(--c-text-soft);
  margin-bottom: -8px;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  font-family: var(--font);
  font-size: 16px;
  color: var(--c-text);
  background: #fff;
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  width: 100%;
  transition: border-color var(--trans), box-shadow var(--trans);
  box-shadow: var(--c-shadow-sm);
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: 2px solid var(--c-primary);
  outline-offset: 1px;
  border-color: var(--c-primary);
}
.contact-form textarea { resize: vertical; min-height: 110px; }

/* ====== FAQ zone ====== */
.faq-zone details {
  border-bottom: 1px solid var(--c-border);
  padding: 16px 0;
}
.faq-zone summary {
  font-weight: 700;
  font-size: 17px;
  cursor: pointer;
  list-style: none;
  padding-right: 28px;
  position: relative;
  color: var(--c-dark);
  min-height: 44px;
  display: flex;
  align-items: center;
}
.faq-zone summary::-webkit-details-marker { display: none; }
.faq-zone summary::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  color: var(--c-primary);
  font-size: 22px;
  font-weight: 400;
  transition: transform var(--trans);
}
.faq-zone details[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
}
.faq-zone details > *:not(summary) {
  padding: 12px 4px 4px;
  color: var(--c-text-soft);
  line-height: 1.75;
}

/* Privacy prose adjustments */
.privacy-prose { font-size: 16px; }
.privacy-prose h2 { margin-top: 2em; }

/* ====== 页脚 footer 三列 dl ====== */
.site-footer {
  background: var(--c-dark);
  color: var(--c-accent);
  margin-top: 60px;
}
.footer-form-block {
  background: linear-gradient(90deg, #3a1820 0%, var(--c-dark) 100%);
  text-align: center;
  padding: 24px 20px;
  border-bottom: 1px solid rgba(235,135,156,0.12);
  font-size: 15px;
}
.footer-form-block a {
  color: var(--c-primary);
  font-weight: 700;
}
.footer-cols {
  display: flex;
  gap: 0;
  max-width: 860px;
  margin: 0 auto;
  padding: 36px 24px 28px;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}
.footer-dl {
  flex: 1;
  min-width: 140px;
}
.footer-dl dt {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-primary);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.footer-dl dd {
  margin: 0 0 8px 0;
  font-size: 14px;
}
.footer-dl a {
  color: rgba(255,182,193,0.8);
  text-decoration: none;
  transition: color var(--trans);
  display: inline-block;
  min-height: 28px;
  line-height: 1.6;
}
.footer-dl a:hover { color: var(--c-primary); }
.footer-copy {
  text-align: center;
  padding: 16px 20px 20px;
  border-top: 1px solid rgba(235,135,156,0.1);
  font-size: 13px;
  color: rgba(255,182,193,0.5);
}

/* ====== Scroll Reveal ====== */
@media (prefers-reduced-motion: no-preference) {
  .reveal-block {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 420ms ease, transform 420ms ease;
  }
  .reveal-block.is-visible {
    opacity: 1;
    transform: none;
  }
  .reveal-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 340ms ease, transform 340ms ease;
  }
  .card-grid .reveal-item.is-visible {
    opacity: 1;
    transform: none;
  }
}

/* ====== 响应式 ====== */
@media (max-width: 640px) {
  .hero-content {
    max-width: 100%;
    padding: 40px 20px 100px;
    text-align: right;
  }
  .hero-bg-text { font-size: 22vw; }
  .inner-hero-content,
  .feature-hero-content { padding: 36px 16px 0; }
  .main-content { padding: 0 16px; }
  .card-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
  .footer-cols { flex-direction: column; gap: 20px; padding: 28px 20px; }
  .prose-zone { padding: 32px 0 28px; }
  .content-band { padding: 28px 0; }
  .contact-form-block { padding: 28px 0; }
}

@media (max-width: 420px) {
  .card-grid { grid-template-columns: 1fr; }
  .hero-content h1 { font-size: 26px; }
  .link-list a { font-size: 14px; padding: 10px 14px; }
}

@media (min-width: 860px) {
  .main-content { padding: 0 32px; }
  .hero-content { padding: 80px 60px 140px 24px; }
}