@import url('https://fonts.googleapis.com/css2?family=Baloo+2:wght@400;500;600;700&family=Comic+Neue:wght@300;400;700&display=swap');

/* ========== 自定义属性 ========== */
:root {
  --c-primary: #56228b;
  --c-secondary: #8b4513;
  --c-ink: #1f1726;
  --c-primary-light: #7a3db5;
  --c-primary-faint: rgba(86,34,139,0.10);
  --c-secondary-faint: rgba(139,69,19,0.12);
  --c-star: #c8a8f0;
  --bg-base: #f5f0fb;
  --bg-card: rgba(255,255,255,0.55);
  --bg-hero: linear-gradient(135deg, #1f1726 0%, #2d1060 50%, #3b1a6b 100%);
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --radius-pill: 999px;
  --shadow-card: 0 8px 32px rgba(31,23,38,0.13), 0 1.5px 4px rgba(86,34,139,0.07);
  --shadow-soft: 0 4px 18px rgba(31,23,38,0.10);
  --font-main: 'Baloo 2', 'Comic Neue', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-comic: 'Comic Neue', 'Baloo 2', cursive, sans-serif;
  --nav-h: 112px;
  --transition: 0.32s cubic-bezier(0.4,0,0.2,1);
}

/* ========== 重置 ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  font-size: 17px;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-main);
  background: var(--bg-base);
  color: var(--c-ink);
  line-height: 1.7;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input { font: inherit; }

/* ========== 无障碍 ========== */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
:focus-visible {
  outline: 3px solid var(--c-primary-light);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ========== section scroll-margin ========== */
section[id] { scroll-margin-top: calc(var(--nav-h) + 16px); }

/* ========== 外层包裹 ========== */
.page-wrapper { display: flex; flex-direction: column; min-height: 100vh; }

/* ===================================
   顶部导航
=================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(31,23,38,0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(86,34,139,0.25);
}

/* 品牌行 */
.header-brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 28px 8px;
  gap: 16px;
}
.brand-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.site-logo-img { height: 40px; width: auto; }
.logo-text {
  font-family: var(--font-main);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--c-star);
  letter-spacing: 0.04em;
  line-height: 1.2;
}

/* 搜索框 */
.search-form {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(200,168,240,0.28);
  border-radius: var(--radius-pill);
  overflow: hidden;
  transition: border-color var(--transition);
}
.search-form:focus-within {
  border-color: var(--c-star);
  background: rgba(255,255,255,0.16);
}
.search-input {
  background: none;
  border: none;
  padding: 8px 14px;
  color: #fff;
  font-size: 0.92rem;
  width: 180px;
  outline: none;
}
.search-input::placeholder { color: rgba(200,168,240,0.60); }
.search-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  color: var(--c-star);
  min-height: 40px;
  transition: color var(--transition);
}
.search-btn:hover { color: #fff; }

/* 菜单行 */
.header-nav-row {
  padding: 0 28px 10px;
}
.nav-aside { display: block; }
.nav-pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.nav-pill-list li a {
  display: inline-flex;
  align-items: center;
  padding: 7px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.88rem;
  font-weight: 600;
  color: rgba(200,168,240,0.90);
  background: rgba(86,34,139,0.18);
  border: 1px solid rgba(86,34,139,0.30);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  white-space: nowrap;
  min-height: 40px;
}
.nav-pill-list li a:hover,
.nav-pill-list li a:focus-visible {
  background: var(--c-primary);
  color: #fff;
  border-color: var(--c-primary-light);
}

/* ===================================
   Hero
=================================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  background: var(--bg-hero);
  display: flex;
  align-items: center;
  overflow: hidden;
}

/* 点阵底纹 */
.hero-dot-grid {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(200,168,240,0.22) 1.5px, transparent 1.5px);
  background-size: 32px 32px;
  pointer-events: none;
}

/* 有机斑块装饰 */
.hero-section::before {
  content: '';
  position: absolute;
  width: 520px;
  height: 480px;
  right: -80px;
  top: 10%;
  background: radial-gradient(ellipse at 60% 40%, rgba(86,34,139,0.45) 0%, transparent 70%);
  border-radius: 62% 38% 55% 45% / 48% 52% 48% 52%;
  pointer-events: none;
}
.hero-section::after {
  content: '';
  position: absolute;
  width: 340px;
  height: 300px;
  left: -60px;
  bottom: 12%;
  background: radial-gradient(ellipse, rgba(139,69,19,0.28) 0%, transparent 70%);
  border-radius: 40% 60% 38% 62% / 52% 48% 60% 40%;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 120px 48px 100px;
}
.hero-text {
  flex: 0 0 55%;
  max-width: 600px;
  text-align: left;
}
.hero-h1 {
  font-size: clamp(2.2rem, 5.5vw, 3.8rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
  letter-spacing: 0.02em;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 1.1rem;
  color: rgba(200,168,240,0.85);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 480px;
}
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  background: var(--c-primary);
  color: #fff;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 1.05rem;
  box-shadow: 0 6px 24px rgba(86,34,139,0.45);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  min-height: 52px;
}
.hero-cta:hover {
  background: var(--c-primary-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(86,34,139,0.55);
}

.hero-media { flex: 0 0 38%; display: flex; align-items: center; justify-content: center; }
.hero-img {
  width: 100%;
  max-width: 420px;
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 64px rgba(31,23,38,0.55);
  object-fit: cover;
}
.hero-media-placeholder {
  width: 340px;
  height: 340px;
  position: relative;
}
.hero-orb {
  width: 100%;
  height: 100%;
  border-radius: 58% 42% 62% 38% / 44% 56% 44% 56%;
  background: radial-gradient(ellipse at 40% 35%, rgba(122,61,181,0.75) 0%, rgba(86,34,139,0.30) 55%, transparent 80%);
  box-shadow: 0 0 80px rgba(86,34,139,0.35);
  animation: orbFloat 7s ease-in-out infinite alternate;
}
@keyframes orbFloat {
  from { transform: translateY(0) scale(1); }
  to   { transform: translateY(-18px) scale(1.04); }
}

/* 圆弧底边 */
.hero-arc {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  z-index: 3;
  line-height: 0;
}
.hero-arc svg { width: 100%; height: 80px; display: block; }

/* ===================================
   主内容 + 侧边栏布局
=================================== */
.site-main {
  flex: 1;
  padding: 56px 0 40px;
}
.site-main > .wrap {
  display: grid;
  grid-template-columns: 1fr 300px;
  grid-template-areas: "content aside";
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  align-items: start;
}
.content-section {
  grid-area: content;
  min-width: 0;
}
.content-article { width: 100%; }

/* 正文内容：page.content 样式 */
.prose-content { line-height: 1.85; }
.prose-content h2 {
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  font-weight: 700;
  color: var(--c-primary);
  margin: 2.4em 0 0.5em;
  line-height: 1.3;
}
.prose-content h2 + hr,
.prose-content h3 + hr {
  border: none;
  border-top: 2px solid var(--c-primary-faint);
  margin: 0 0 1.2em;
}
.prose-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--c-secondary);
  margin: 1.8em 0 0.4em;
}
.prose-content p {
  margin-bottom: 1.2em;
  font-size: 1rem;
  color: #2a1e35;
}
.prose-content ul, .prose-content ol {
  margin: 0.8em 0 1.2em 1.4em;
}
.prose-content ul { list-style: disc; }
.prose-content ol { list-style: decimal; }
.prose-content li { margin-bottom: 0.45em; line-height: 1.75; }
.prose-content a {
  color: var(--c-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.prose-content a:hover { color: var(--c-primary-light); }
.prose-content strong { font-weight: 700; color: var(--c-ink); }
.prose-content blockquote {
  border-left: 4px solid var(--c-primary);
  background: var(--c-primary-faint);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 14px 20px;
  margin: 1.4em 0;
  color: #3a2550;
  font-style: italic;
}

/* page.content 内的 section：有机圆弧卡片风 */
.prose-content > section,
.prose-content section {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(86,34,139,0.13);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  margin-bottom: 32px;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}
.prose-content > section::before,
.prose-content section::before {
  content: '';
  position: absolute;
  top: -30px;
  right: -30px;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, var(--c-primary-faint) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

/* hr 全局 */
hr {
  border: none;
  border-top: 2px solid var(--c-primary-faint);
  margin: 1em 0 1.2em;
}

/* ===================================
   侧边栏
=================================== */
.content-aside {
  grid-area: aside;
  position: sticky;
  top: calc(var(--nav-h) + 24px);
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.aside-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(86,34,139,0.15);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-soft);
}
.aside-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-primary);
  margin-bottom: 10px;
}
.aside-card hr {
  margin: 0 0 14px;
}
.aside-nav-list li {
  border-bottom: 1px solid rgba(86,34,139,0.08);
}
.aside-nav-list li:last-child { border-bottom: none; }
.aside-nav-list li a {
  display: block;
  padding: 9px 4px;
  font-size: 0.91rem;
  color: #3a2550;
  font-weight: 500;
  transition: color var(--transition), padding-left var(--transition);
  min-height: 40px;
  line-height: 1.3;
  display: flex;
  align-items: center;
}
.aside-nav-list li a:hover {
  color: var(--c-primary);
  padding-left: 8px;
}
.aside-tip-card {
  background: linear-gradient(135deg, rgba(86,34,139,0.10) 0%, rgba(139,69,19,0.08) 100%);
  border-color: rgba(86,34,139,0.20);
  text-align: center;
}
.aside-tip-icon {
  font-size: 1.6rem;
  color: var(--c-primary);
  margin-bottom: 8px;
}
.aside-tip-text {
  font-size: 0.88rem;
  color: #4a3060;
  line-height: 1.6;
}

/* ===================================
   页脚
=================================== */
.site-footer {
  background: var(--c-ink);
  color: rgba(255,255,255,0.80);
  position: relative;
  overflow: hidden;
}
.site-footer::before {
  content: '';
  position: absolute;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 200px;
  background: radial-gradient(ellipse, rgba(86,34,139,0.22) 0%, transparent 70%);
  pointer-events: none;
}

/* 页脚品牌区 */
.footer-brand-section {
  text-align: center;
  padding: 64px 32px 32px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  position: relative;
  z-index: 1;
}
.footer-mega-brand {
  font-size: clamp(3rem, 10vw, 7rem);
  font-weight: 700;
  color: rgba(200,168,240,0.18);
  letter-spacing: 0.12em;
  line-height: 1;
  margin-bottom: 16px;
  font-family: var(--font-main);
  user-select: none;
}
.footer-brand-desc {
  font-size: 1rem;
  color: rgba(255,255,255,0.55);
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.7;
}

/* 四栏网格 */
.footer-columns-section {
  padding: 48px 32px 32px;
  position: relative;
  z-index: 1;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  max-width: 1100px;
  margin: 0 auto;
}
.footer-col-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--c-star);
  letter-spacing: 0.06em;
  margin-bottom: 16px;
  text-transform: none;
}
.footer-link-list li { margin-bottom: 10px; }
.footer-link-list a {
  font-size: 0.89rem;
  color: rgba(255,255,255,0.60);
  transition: color var(--transition);
  display: inline-flex;
  align-items: center;
  min-height: 32px;
}
.footer-link-list a:hover { color: var(--c-star); }
.footer-col-text {
  font-size: 0.89rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.7;
}
.footer-col-text a {
  color: var(--c-star);
}
.footer-col-text a:hover { text-decoration: underline; }

/* 底栏 */
.footer-bottom-section {
  text-align: center;
  padding: 24px 32px;
  position: relative;
  z-index: 1;
}
.footer-copyright {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.45);
  margin-bottom: 6px;
}
.footer-icp {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.30);
}

/* ===================================
   Scroll Reveal 动效
=================================== */
@media (prefers-reduced-motion: no-preference) {
  .prose-content > section,
  .prose-content section,
  .aside-card {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.58s cubic-bezier(0.4,0,0.2,1), transform 0.58s cubic-bezier(0.4,0,0.2,1);
  }
  .prose-content > section.is-visible,
  .prose-content section.is-visible,
  .aside-card.is-visible {
    opacity: 1;
    transform: translateY(0);
  }
  /* Stagger */
  .prose-content > section:nth-child(2),
  .prose-content section:nth-child(2) { transition-delay: 0.07s; }
  .prose-content > section:nth-child(3),
  .prose-content section:nth-child(3) { transition-delay: 0.14s; }
  .prose-content > section:nth-child(4),
  .prose-content section:nth-child(4) { transition-delay: 0.21s; }
  .prose-content > section:nth-child(5),
  .prose-content section:nth-child(5) { transition-delay: 0.28s; }
  .prose-content > section:nth-child(6),
  .prose-content section:nth-child(6) { transition-delay: 0.35s; }
  .prose-content > section:nth-child(7),
  .prose-content section:nth-child(7) { transition-delay: 0.42s; }
  .aside-card:nth-child(2) { transition-delay: 0.10s; }

  .footer-grid .footer-col {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s cubic-bezier(0.4,0,0.2,1), transform 0.5s cubic-bezier(0.4,0,0.2,1);
  }
  .footer-grid .footer-col.is-visible { opacity: 1; transform: translateY(0); }
  .footer-grid .footer-col:nth-child(2) { transition-delay: 0.08s; }
  .footer-grid .footer-col:nth-child(3) { transition-delay: 0.16s; }
  .footer-grid .footer-col:nth-child(4) { transition-delay: 0.24s; }
}

/* ===================================
   响应式
=================================== */
@media (max-width: 1024px) {
  .site-main > .wrap {
    grid-template-columns: 1fr;
    grid-template-areas: "content" "aside";
  }
  .content-aside {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .aside-card { flex: 1 1 260px; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { padding: 100px 32px 80px; }
}

@media (max-width: 768px) {
  :root { --nav-h: 130px; }
  .header-brand-row { padding: 10px 16px 6px; }
  .header-nav-row { padding: 0 10px 8px; }
  .nav-pill-list { gap: 5px; }
  .nav-pill-list li a { padding: 6px 12px; font-size: 0.82rem; }
  .hero-inner {
    flex-direction: column;
    padding: 80px 20px 60px;
    text-align: left;
  }
  .hero-text { flex: none; max-width: 100%; }
  .hero-media { flex: none; width: 100%; max-width: 320px; }
  .hero-media-placeholder { width: 240px; height: 240px; }
  .site-main > .wrap { padding: 0 16px; }
  .prose-content > section,
  .prose-content section { padding: 24px 20px; }
  .footer-brand-section { padding: 40px 20px 24px; }
  .footer-columns-section { padding: 32px 20px 20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
}

@media (max-width: 480px) {
  .search-input { width: 120px; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-h1 { font-size: 1.9rem; }
  .logo-text { font-size: 1.2rem; }
  .content-aside { flex-direction: column; }
}

button[aria-expanded]{min-width:44px;min-height:44px}