@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;500;600&family=Cormorant+Garamond:ital,wght@0,300;0,500;0,700;1,300;1,500&family=Crimson+Pro:ital,wght@0,300;0,400;0,600;1,300;1,400&display=swap');

/* ===== CSS 自定义属性 ===== */
:root {
  --clr-primary: #eb879c;
  --clr-primary-light: #ffb6c1;
  --clr-dark: #26171a;
  --clr-dark-mid: #3a2229;
  --clr-dark-surface: #301d22;
  --clr-dark-border: rgba(235,135,156,0.18);
  --clr-glass-bg: rgba(48, 29, 34, 0.72);
  --clr-glass-border: rgba(255,182,193,0.22);
  --clr-text: #f5e8eb;
  --clr-text-muted: #c9a4af;
  --clr-text-dim: #8c6672;
  --clr-link: #eb879c;
  --clr-link-hover: #ffb6c1;
  --font-heading: 'Cormorant Garamond', 'Crimson Pro', 'Georgia', serif;
  --font-body: 'Crimson Pro', 'Georgia', 'Times New Roman', serif;
  --font-ui: 'Cinzel', 'Cormorant Garamond', serif;
  --nav-width: 240px;
  --radius-card: 10px;
  --radius-sm: 6px;
  --shadow-soft: 0 2px 8px rgba(38,23,26,0.45), 0 1px 3px rgba(235,135,156,0.12);
  --shadow-card: 0 4px 16px rgba(38,23,26,0.55), 0 2px 6px rgba(235,135,156,0.1);
  --shadow-hover: 0 8px 28px rgba(38,23,26,0.65), 0 3px 10px rgba(235,135,156,0.18);
  --transition-fast: 200ms ease;
  --transition-std: 280ms ease;
}

/* ===== 重置与基础 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 18px;
  background: var(--clr-dark);
  color: var(--clr-text);
}

body {
  font-family: var(--font-body);
  line-height: 1.7;
  min-height: 100vh;
  background: var(--clr-dark);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--clr-link); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--clr-link-hover); }
a:focus-visible {
  outline: 2px solid var(--clr-primary);
  outline-offset: 3px;
  border-radius: 2px;
}
ul, ol { list-style: none; }
button, input, textarea, select { font: inherit; }

/* ===== 布局骨架 ===== */
.site-wrapper {
  display: flex;
  min-height: 100vh;
}

.main-wrap {
  flex: 1;
  margin-left: var(--nav-width);
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* ===== 左侧竖排导航 ===== */
.sidenav {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--nav-width);
  height: 100vh;
  background: var(--clr-dark-surface);
  border-right: 1px solid var(--clr-dark-border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  z-index: 100;
  box-shadow: 2px 0 12px rgba(38,23,26,0.6);
}

.sidenav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 24px 20px 20px;
  border-bottom: 1px solid var(--clr-dark-border);
}

.sidenav__logo {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.sidenav__brand-name {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--clr-primary-light);
  line-height: 1.3;
  word-break: break-all;
}
.sidenav__brand-name:hover { color: #fff; }

.sidenav__list {
  padding: 16px 0 24px;
  flex: 1;
}

.sidenav__group-title {
  font-family: var(--font-ui);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--clr-text-dim);
  padding: 8px 20px 6px;
  text-transform: uppercase;
}

.sidenav__list dd {
  padding: 0;
}

.nav-link {
  display: block;
  padding: 10px 20px;
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: var(--clr-text-muted);
  border-left: 3px solid transparent;
  transition: all var(--transition-fast);
  line-height: 1.4;
  min-height: 40px;
  display: flex;
  align-items: center;
}

.nav-link:hover {
  color: var(--clr-primary-light);
  background: rgba(235,135,156,0.07);
  border-left-color: var(--clr-primary);
}

.nav-link--active {
  color: var(--clr-primary);
  border-left-color: var(--clr-primary);
  background: rgba(235,135,156,0.1);
  font-weight: 600;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 45vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(135deg, var(--clr-dark) 0%, var(--clr-dark-mid) 50%, #4a1e2e 100%);
}

.hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(38,23,26,0.82) 0%, rgba(38,23,26,0.55) 60%, rgba(74,30,46,0.7) 100%);
}

.hero__slash {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 72px;
  background: var(--clr-dark);
  clip-path: polygon(0 60%, 100% 0%, 100% 100%, 0% 100%);
  z-index: 2;
}

.hero__content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 48px 24px 80px;
  max-width: 720px;
}

.hero__eyebrow {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--clr-primary);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.25;
  color: #fff;
  margin-bottom: 14px;
  text-shadow: 0 2px 12px rgba(38,23,26,0.8);
}

.hero__subtitle {
  font-size: 1rem;
  color: var(--clr-text-muted);
  margin-bottom: 24px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.article-date {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--clr-primary-light);
  letter-spacing: 0.06em;
  margin-top: 8px;
  opacity: 0.85;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  cursor: pointer;
  border: none;
  transition: all var(--transition-std);
  min-height: 44px;
  text-decoration: none;
  user-select: none;
}

.btn--primary {
  background: linear-gradient(135deg, var(--clr-primary), #d4607a);
  color: #fff;
  box-shadow: 0 3px 10px rgba(235,135,156,0.35);
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--clr-primary-light), var(--clr-primary));
  color: #fff;
  box-shadow: 0 6px 18px rgba(235,135,156,0.45);
  transform: translateY(-1px);
}

.btn--outline {
  background: transparent;
  color: var(--clr-primary);
  border: 1.5px solid var(--clr-primary);
}

.btn--outline:hover {
  background: rgba(235,135,156,0.12);
  color: var(--clr-primary-light);
  border-color: var(--clr-primary-light);
  transform: translateY(-1px);
}

/* ===== 玻璃拟态卡片 ===== */
.glass-card {
  background: var(--clr-glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--clr-glass-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition-std), transform var(--transition-std);
}

.glass-card:hover {
  box-shadow: var(--shadow-hover);
}

/* ===== 页面主体布局 ===== */
.page-main {
  flex: 1;
  padding: 32px 32px 48px;
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
}

.content-section {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 32px;
  align-items: start;
  margin-bottom: 48px;
}

.content-body {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.content-sidebar {
  position: sticky;
  top: 24px;
}

/* figure/aside 是 article 直接子元素结构 */
.content-section > figure,
.content-section > aside {
  /* 当直接放在 article 里时的样式 */
  margin: 0;
}

.content-section--home {
  grid-template-columns: 1fr 300px;
}

/* ===== prose ===== */
.prose {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--clr-text);
}

.prose h2, .prose h3 {
  font-family: var(--font-heading);
  color: var(--clr-primary-light);
  margin: 1.6em 0 0.6em;
  line-height: 1.3;
}

.prose h2 { font-size: 1.45rem; font-weight: 700; }
.prose h3 { font-size: 1.2rem; font-weight: 500; }

.prose p { margin-bottom: 1em; }

.prose a, .prose-link {
  color: var(--clr-primary);
  border-bottom: 1px solid rgba(235,135,156,0.35);
  transition: all var(--transition-fast);
}

.prose a:hover, .prose-link:hover {
  color: var(--clr-primary-light);
  border-bottom-color: var(--clr-primary-light);
}

.prose ul, .prose ol {
  margin: 0.8em 0 1em 1.4em;
}

.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose li { margin-bottom: 0.4em; line-height: 1.7; }

.prose blockquote {
  border-left: 3px solid var(--clr-primary);
  padding: 10px 18px;
  margin: 1.2em 0;
  background: rgba(235,135,156,0.07);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--clr-text-muted);
}

.prose strong { color: var(--clr-primary-light); font-weight: 600; }
.prose em { font-style: italic; color: var(--clr-text-muted); }

/* ===== 内容 figure/figcaption ===== */
.content-figure, .faq-intro, .about-intro, .contact-intro, .privacy-intro,
.cases-intro, .service-cta, .page-intro, .contact-form-wrap {
  padding: 20px 24px;
}

.content-meta {
  font-family: var(--font-body);
  font-size: 1.02rem;
  color: var(--clr-text-muted);
  font-style: italic;
  line-height: 1.65;
}

/* ===== inline-aside（article 直接子元素的 aside） ===== */
.inline-aside {
  padding: 18px 22px;
}

.inline-aside p {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--clr-text-muted);
  margin: 6px 0 0;
}

/* ===== aside 侧边栏通用 ===== */
.aside-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--clr-primary);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--clr-dark-border);
}

.aside-title span {
  display: inline;
}

.service-aside {
  padding: 20px;
}

.aside-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.aside-links li {
  padding: 2px 0;
}

.aside-link {
  display: block;
  padding: 8px 10px;
  font-size: 0.88rem;
  color: var(--clr-text-muted);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  line-height: 1.45;
  min-height: 36px;
  display: flex;
  align-items: center;
}

.aside-link:hover {
  background: rgba(235,135,156,0.1);
  color: var(--clr-primary-light);
  transform: translateX(3px);
}

.aside-link--cta {
  margin-top: 10px;
  background: rgba(235,135,156,0.1);
  color: var(--clr-primary);
  font-weight: 600;
}

.aside-divider {
  border: none;
  border-top: 1px solid var(--clr-dark-border);
  margin: 12px 0;
}

/* ===== home-aside ===== */
.home-aside {
  padding: 20px;
}

/* ===== article titles ===== */
.section-title {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--clr-primary-light);
  margin-bottom: 24px;
  padding-left: 14px;
  border-left: 3px solid var(--clr-primary);
  line-height: 1.3;
}

.section-title span {
  display: inline;
}

/* ===== 服务卡片网格 ===== */
.home-services, .cases-grid-section {
  margin-bottom: 40px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
  list-style: none;
}

.service-card {
  padding: 0;
  transition: transform var(--transition-std), box-shadow var(--transition-std);
}

.service-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.service-card__link {
  display: flex;
  flex-direction: column;
  padding: 22px 20px;
  height: 100%;
  color: inherit;
  gap: 8px;
}

.service-card__label {
  font-family: var(--font-ui);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: var(--clr-primary);
  text-transform: uppercase;
}

.service-card__title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--clr-text);
  line-height: 1.3;
  flex: 1;
}

.service-card__title span {
  display: inline;
}

.service-card__desc {
  font-size: 0.87rem;
  color: var(--clr-text-muted);
  line-height: 1.55;
}

.service-card__more {
  font-size: 0.8rem;
  color: var(--clr-primary);
  margin-top: 4px;
  font-family: var(--font-ui);
  letter-spacing: 0.04em;
}

/* ===== CTA 区块 ===== */
.home-cta-section, .service-cta-section, .faq-cta-section, .about-values-section,
.cases-grid-section, .contact-form-section {
  margin-bottom: 48px;
}

.home-cta, .service-cta, .faq-cta {
  padding: 36px 40px;
  text-align: center;
}

.cta-title {
  font-family: var(--font-heading);
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--clr-primary-light);
  margin-bottom: 12px;
}

.cta-title span {
  display: inline;
}

.cta-desc { color: var(--clr-text-muted); margin-bottom: 20px; }

.cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 18px;
}

/* ===== about values ===== */
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

.value-card {
  padding: 26px 22px;
  transition: transform var(--transition-std);
}

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

.value-card__title {
  font-family: var(--font-heading);
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--clr-primary);
  margin-bottom: 8px;
}

.value-card__title span { display: inline; }

.value-card p {
  font-size: 0.92rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
}

/* ===== cases list ===== */
.cases-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 8px;
}

.cases-list__item {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 8px 0;
  border-bottom: 1px solid var(--clr-dark-border);
}

.cases-list__link {
  font-size: 0.95rem;
  color: var(--clr-primary);
  line-height: 1.4;
  transition: color var(--transition-fast);
}

.cases-list__link:hover { color: var(--clr-primary-light); }

.cases-list__desc {
  font-size: 0.82rem;
  color: var(--clr-text-dim);
  line-height: 1.45;
}

/* ===== 联系表单 ===== */
.contact-form-wrap {
  padding: 28px 32px;
}

.contact-form-intro {
  font-size: 0.95rem;
  color: var(--clr-text-muted);
  margin-bottom: 22px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--clr-text-muted);
  text-transform: uppercase;
}

.form-input, .form-textarea {
  background: rgba(38,23,26,0.6);
  border: 1px solid var(--clr-dark-border);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  color: var(--clr-text);
  font-size: 1rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 44px;
}

.form-input:focus, .form-textarea:focus {
  outline: 2px solid var(--clr-primary);
  outline-offset: 1px;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(235,135,156,0.15);
}

.form-textarea { resize: vertical; min-height: 120px; line-height: 1.6; }

.form-submit { align-self: flex-start; }

/* ===== FAQ prose 样式 ===== */
.faq-prose h2, .faq-prose h3 {
  font-family: var(--font-heading);
  color: var(--clr-primary-light);
  border-left: 3px solid var(--clr-primary);
  padding-left: 12px;
  margin: 1.8em 0 0.6em;
}

/* ===== privacy prose ===== */
.privacy-prose h2, .privacy-prose h3 {
  margin-top: 1.6em;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--clr-dark-surface);
  border-top: 1px solid var(--clr-dark-border);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 0;
  margin-top: auto;
}

.site-footer > article {
  padding: 36px 28px;
  border-right: 1px solid var(--clr-dark-border);
}

.site-footer > article:last-child {
  border-right: none;
}

.footer-cta {
  background: linear-gradient(135deg, rgba(235,135,156,0.12) 0%, rgba(48,29,34,0) 100%);
}

.footer-cta__title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--clr-primary-light);
  margin-bottom: 10px;
}

.footer-cta__title span { display: inline; }

.footer-cta__desc {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  margin-bottom: 18px;
  line-height: 1.6;
}

.footer-nav__group {
  font-family: var(--font-ui);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--clr-text-dim);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.footer-nav__list dd {
  margin: 0;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  padding: 5px 0;
  font-size: 0.88rem;
  color: var(--clr-text-muted);
  min-height: 32px;
  transition: color var(--transition-fast);
  line-height: 1.4;
}

.footer-link:hover { color: var(--clr-primary-light); }

.footer-info__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-primary);
  margin-bottom: 10px;
}

.footer-info__title span { display: inline; }

.footer-info__text {
  font-size: 0.87rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
  margin-bottom: 10px;
}

.footer-copyright {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--clr-text-dim);
  letter-spacing: 0.04em;
  margin-bottom: 10px;
}

.footer-legal__links {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* ===== scroll reveal ===== */
.reveal-section {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 300ms ease, transform 300ms ease;
}

.reveal-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== prefers-reduced-motion ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal-section {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ===== 移动端响应式 ===== */
@media (max-width: 900px) {
  :root { --nav-width: 0px; }

  .sidenav {
    position: fixed;
    top: 0;
    left: -260px;
    width: 260px;
    transition: left var(--transition-std);
    z-index: 200;
  }

  .sidenav.is-open { left: 0; }

  .main-wrap { margin-left: 0; }

  .mobile-nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    top: 14px;
    left: 14px;
    z-index: 210;
    width: 44px;
    height: 44px;
    background: var(--clr-dark-surface);
    border: 1px solid var(--clr-dark-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    box-shadow: var(--shadow-soft);
  }

  .mobile-nav-toggle .bar {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--clr-primary);
    position: relative;
    transition: all var(--transition-fast);
  }

  .mobile-nav-toggle .bar::before,
  .mobile-nav-toggle .bar::after {
    content: '';
    display: block;
    width: 20px;
    height: 2px;
    background: var(--clr-primary);
    position: absolute;
    transition: all var(--transition-fast);
  }

  .mobile-nav-toggle .bar::before { top: -6px; }
  .mobile-nav-toggle .bar::after { top: 6px; }

  .site-footer {
    grid-template-columns: 1fr 1fr;
  }

  .footer-cta {
    grid-column: 1 / -1;
  }

  .content-section {
    grid-template-columns: 1fr;
  }

  .content-sidebar {
    position: static;
  }

  .page-main { padding: 24px 16px 40px; }

  .hero { min-height: 45vh; }
  .hero__content { padding: 56px 20px 80px; }
  .hero__title { font-size: clamp(1.5rem, 6vw, 2.4rem); }
}

@media (max-width: 600px) {
  html { font-size: 17px; }

  .site-footer {
    grid-template-columns: 1fr;
  }

  .site-footer > article {
    border-right: none;
    border-bottom: 1px solid var(--clr-dark-border);
    padding: 24px 20px;
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

  .values-grid {
    grid-template-columns: 1fr;
  }

  .hero { min-height: 50vh; }

  .page-main { padding: 20px 14px 36px; }

  .contact-form-wrap { padding: 20px 18px; }

  .home-cta, .service-cta, .faq-cta { padding: 24px 20px; }
}