:root {
  --primary: #5B4B8A;
  --primary-dark: #463A6B;
  --primary-light: #7B6BAE;
  --accent: #F2B705;
  --accent-2: #E86A92;
  --accent-3: #4EC5C1;
  --bg: #F7F5FB;
  --bg-alt: #FFFFFF;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-solid: #FFFFFF;
  --text: #241F33;
  --text-muted: #5F5873;
  --border: rgba(91, 75, 138, 0.14);
  --shadow: 0 10px 30px rgba(70, 58, 107, 0.10);
  --shadow-lg: 0 20px 50px rgba(70, 58, 107, 0.16);
  --radius: 20px;
  --radius-sm: 12px;
  --radius-lg: 28px;
  --max-width: 1120px;
  --header-h: 68px;
  --transition: 0.28s cubic-bezier(0.22, 0.61, 0.36, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --primary: #9C8CD6;
    --primary-dark: #7B6BAE;
    --primary-light: #B8ABE8;
    --accent: #F2B705;
    --accent-2: #F07FA6;
    --accent-3: #5FD9D4;
    --bg: #14111F;
    --bg-alt: #1B1729;
    --surface: rgba(30, 25, 45, 0.66);
    --surface-solid: #1E192D;
    --text: #EFEBF7;
    --text-muted: #ABA3C2;
    --border: rgba(156, 140, 214, 0.20);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.40);
    --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.55);
  }
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 12% 8%, rgba(91, 75, 138, 0.10), transparent 42%),
    radial-gradient(circle at 88% 12%, rgba(232, 106, 146, 0.10), transparent 40%),
    radial-gradient(circle at 50% 100%, rgba(78, 197, 193, 0.08), transparent 45%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img,
svg {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition), opacity var(--transition);
}

a:hover,
a:focus-visible {
  color: var(--accent-2);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

h1, h2, h3, h4 {
  line-height: 1.3;
  margin: 0 0 0.6em;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text);
}

h1 {
  font-size: clamp(1.75rem, 4.2vw, 2.75rem);
}

h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  position: relative;
  padding-left: 18px;
}

h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.18em;
  bottom: 0.18em;
  width: 6px;
  border-radius: 6px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2), var(--accent-3));
}

h3 {
  font-size: clamp(1.1rem, 2.2vw, 1.3rem);
  color: var(--primary);
}

p {
  margin: 0 0 1em;
  color: var(--text-muted);
}

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

li {
  margin-bottom: 0.4em;
  color: var(--text-muted);
}

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 24px rgba(70, 58, 107, 0.06);
}

nav[aria-label="主导航"] {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

nav[aria-label="主导航"] > a[aria-label="六派社区首页"] {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--text);
  padding: 8px 0;
  background: linear-gradient(120deg, var(--primary), var(--accent-2), var(--accent-3));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: transform var(--transition);
}

nav[aria-label="主导航"] > a[aria-label="六派社区首页"]:hover {
  transform: scale(1.04);
}

nav[aria-label="主导航"] ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 0;
  padding: 6px 0;
}

nav[aria-label="主导航"] ul li {
  margin: 0;
}

nav[aria-label="主导航"] ul li a {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

nav[aria-label="主导航"] ul li a:hover,
nav[aria-label="主导航"] ul li a:focus-visible {
  color: var(--primary);
  background: rgba(91, 75, 138, 0.10);
  transform: translateY(-2px);
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px 60px;
}

main > section {
  margin-top: 40px;
  padding: 32px clamp(18px, 4vw, 40px);
  background: var(--surface);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  animation: fadeUp 0.7s cubic-bezier(0.22, 0.61, 0.36, 1) both;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

main > section:hover {
  box-shadow: var(--shadow-lg);
  border-color: rgba(91, 75, 138, 0.24);
}

section[aria-labelledby="hero-title"] {
  margin-top: 28px;
  padding: clamp(28px, 5vw, 56px);
  background:
    linear-gradient(135deg, rgba(91, 75, 138, 0.94) 0%, rgba(123, 107, 174, 0.90) 38%, rgba(232, 106, 146, 0.86) 72%, rgba(78, 197, 193, 0.84) 100%);
  border: none;
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
}

section[aria-labelledby="hero-title"]::before {
  content: "";
  position: absolute;
  inset: -40% -10% auto auto;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.28), transparent 68%);
  pointer-events: none;
  animation: floatBlob 12s ease-in-out infinite;
}

section[aria-labelledby="hero-title"]::after {
  content: "";
  position: absolute;
  inset: auto auto -50% -10%;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242, 183, 5, 0.32), transparent 70%);
  pointer-events: none;
  animation: floatBlob 16s ease-in-out infinite reverse;
}

section[aria-labelledby="hero-title"] h1 {
  color: #FFFFFF;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.18);
  position: relative;
  z-index: 1;
}

section[aria-labelledby="hero-title"] p {
  color: rgba(255, 255, 255, 0.92);
  max-width: 68ch;
  position: relative;
  z-index: 1;
}

section[aria-labelledby="hero-title"] figure {
  margin: 28px 0 0;
  position: relative;
  z-index: 1;
}

section[aria-labelledby="hero-title"] figure svg {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.30);
  border: 1px solid rgba(255, 255, 255, 0.22);
  transition: transform var(--transition), box-shadow var(--transition);
}

section[aria-labelledby="hero-title"] figure svg:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: 0 32px 72px rgba(0, 0, 0, 0.38);
}

figcaption {
  margin-top: 12px;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.82);
  text-align: center;
}

article {
  padding: 20px 22px;
  margin-bottom: 16px;
  background: var(--surface-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 4px 16px rgba(70, 58, 107, 0.05);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

article:last-child {
  margin-bottom: 0;
}

article:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(91, 75, 138, 0.30);
}

article h3 {
  margin-bottom: 0.5em;
}

article p {
  margin-bottom: 0.6em;
  font-size: 0.95rem;
}

article p a {
  display: inline-block;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 999px;
  background: linear-gradient(120deg, var(--primary), var(--accent-2));
  color: #FFFFFF;
  font-size: 0.85rem;
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

article p a:hover,
article p a:focus-visible {
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(232, 106, 146, 0.40);
  filter: brightness(1.06);
}

section[aria-labelledby="faq-title"] h3 {
  padding: 14px 18px;
  margin-bottom: 0;
  background: var(--surface-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  font-size: 1rem;
  color: var(--text);
  position: relative;
  cursor: default;
  transition: background var(--transition), color var(--transition);
}

section[aria-labelledby="faq-title"] h3::after {
  content: "?";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.85rem;
  font-weight: 800;
  color: #FFFFFF;
  background: linear-gradient(135deg, var(--primary), var(--accent-2));
  box-shadow: 0 4px 12px rgba(91, 75, 138, 0.30);
  transition: transform var(--transition);
}

section[aria-labelledby="faq-title"] h3:hover {
  background: rgba(91, 75, 138, 0.06);
  color: var(--primary);
}

section[aria-labelledby="faq-title"] h3:hover::after {
  transform: translateY(-50%) rotate(12deg) scale(1.08);
}

section[aria-labelledby="faq-title"] h3 + p {
  margin: 0 0 14px;
  padding: 14px 18px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-size: 0.95rem;
  transition: background var(--transition);
}

section[aria-labelledby="faq-title"] h3 + p:hover {
  background: rgba(78, 197, 193, 0.06);
}

section[aria-labelledby="sitemap-title"] ul,
section[aria-labelledby="links-title"] ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

section[aria-labelledby="sitemap-title"] ul li,
section[aria-labelledby="links-title"] ul li {
  margin: 0;
}

section[aria-labelledby="sitemap-title"] ul li a,
section[aria-labelledby="links-title"] ul li a {
  display: inline-block;
  padding: 8px 18px;
  border-radius: 999px;
  background: var(--surface-solid);
  border: 1px solid var(--border);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: all var(--transition);
}

section[aria-labelledby="sitemap-title"] ul li a:hover,
section[aria-labelledby="links-title"] ul li a:hover,
section[aria-labelledby="sitemap-title"] ul li a:focus-visible,
section[aria-labelledby="links-title"] ul li a:focus-visible {
  color: #FFFFFF;
  background: linear-gradient(120deg, var(--primary), var(--accent-3));
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(78, 197, 193, 0.32);
}

section[aria-labelledby="contact-title"] p {
  padding: 10px 16px;
  margin-bottom: 8px;
  background: var(--surface-solid);
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

section[aria-labelledby="contact-title"] p:hover {
  transform: translateX(6px);
  border-left-color: var(--accent-2);
  box-shadow: 0 6px 18px rgba(70, 58, 107, 0.10);
}

section[aria-labelledby="author-title"] p {
  font-size: 0.92rem;
  margin-bottom: 0.5em;
}

footer {
  margin-top: 60px;
  padding: 40px 20px 32px;
  background: linear-gradient(160deg, var(--primary-dark), var(--primary) 55%, #3B3160);
  color: rgba(255, 255, 255, 0.86);
  text-align: center;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  position: relative;
  overflow: hidden;
}

footer::before {
  content: "";
  position: absolute;
  inset: -60% -20% auto auto;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242, 183, 5, 0.16), transparent 68%);
  pointer-events: none;
}

footer p {
  max-width: var(--max-width);
  margin: 0 auto 12px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.88rem;
  position: relative;
  z-index: 1;
}

footer p:first-child {
  color: #FFFFFF;
  font-weight: 600;
}

footer a {
  color: var(--accent);
  font-weight: 500;
}

footer a:hover,
footer a:focus-visible {
  color: #FFFFFF;
  text-decoration: underline;
  text-underline-offset: 4px;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes floatBlob {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(-24px, 24px) scale(1.08);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

@media (max-width: 860px) {
  nav[aria-label="主导航"] {
    flex-direction: column;
    align-items: flex-start;
    padding: 10px 16px;
    gap: 4px;
  }

  nav[aria-label="主导航"] ul {
    width: 100%;
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 4px;
  }

  nav[aria-label="主导航"] ul::-webkit-scrollbar {
    display: none;
  }

  nav[aria-label="主导航"] ul li a {
    white-space: nowrap;
    font-size: 0.86rem;
    padding: 6px 10px;
  }

  main {
    padding: 0 14px 48px;
  }

  main > section {
    margin-top: 28px;
    padding: 24px 18px;
    border-radius: var(--radius);
  }

  section[aria-labelledby="hero-title"] {
    padding: 26px 18px;
  }

  article {
    padding: 16px;
  }

  section[aria-labelledby="faq-title"] h3 {
    padding: 12px 44px 12px 14px;
    font-size: 0.95rem;
  }

  section[aria-labelledby="faq-title"] h3 + p {
    padding: 12px 14px;
    font-size: 0.9rem;
  }

  section[aria-labelledby="contact-title"] p {
    font-size: 0.9rem;
  }

  footer {
    padding: 32px 16px 28px;
    border-radius: var(--radius) var(--radius) 0 0;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 15px;
  }

  h2 {
    padding-left: 14px;
  }

  h2::before {
    width: 5px;
  }

  main > section {
    padding: 20px 14px;
  }

  section[aria-labelledby="sitemap-title"] ul,
  section[aria-labelledby="links-title"] ul {
    gap: 8px;
  }

  section[aria-labelledby="sitemap-title"] ul li a,
  section[aria-labelledby="links-title"] ul li a {
    padding: 6px 12px;
    font-size: 0.84rem;
  }
}