@import url('https://fonts.googleapis.com/css2?family=Fredoka:wght@400;500;600;700&family=Nunito:wght@300;400;500;600;700&display=swap');

/* ===== 基础变量 ===== */
:root {
  --red: #ff0000;
  --pink: #ff1493;
  --dark: #261717;
  --dark2: #1a0e0e;
  --dark3: #3a1f1f;
  --glow-red: rgba(255,0,0,0.35);
  --glow-pink: rgba(255,20,147,0.35);
  --text: #f0e0e0;
  --text-dim: #c8a8a8;
  --text-muted: #8a5a5a;
  --aside-w: 260px;
  --radius: 0px;
  --font-main: 'Fredoka', 'Nunito', system-ui, sans-serif;
  --font-body: 'Nunito', 'Fredoka', system-ui, sans-serif;
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 17px;
}

body {
  font-family: var(--font-body);
  background: var(--dark);
  color: var(--text);
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: var(--pink); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--red); }
a:focus-visible { outline: 2px solid var(--pink); outline-offset: 3px; }

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

h1,h2,h3,h4 {
  font-family: var(--font-main);
  font-weight: 700;
  line-height: 1.25;
  color: #fff;
}

h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h2 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); margin-bottom: 0.5rem; }
h3 { font-size: clamp(1.05rem, 2vw, 1.3rem); }

hr {
  border: none;
  border-top: 2px solid;
  border-image: linear-gradient(90deg, var(--red), var(--pink)) 1;
  margin-bottom: 1.5rem;
  opacity: 0.7;
}

ul { list-style: none; }

/* ===== 极光动效 ===== */
@keyframes aurora-shift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
@keyframes aurora-glow {
  0%,100% { opacity: 0.55; transform: scale(1); }
  50%      { opacity: 0.85; transform: scale(1.04); }
}
@keyframes float-y {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}
@keyframes mesh-move {
  0%   { background-position: 0% 0%, 100% 100%; }
  50%  { background-position: 100% 0%, 0% 100%; }
  100% { background-position: 0% 0%, 100% 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ===== 页面骨架 ===== */
.page-shell {
  display: flex;
  min-height: 100vh;
}

/* ===== 侧边 aside 导航 ===== */
.site-aside {
  width: var(--aside-w);
  min-height: 100vh;
  background: var(--dark2);
  border-right: 1px solid rgba(255,20,147,0.18);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
  flex-shrink: 0;
}

.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 1rem;
  border-bottom: 1px solid rgba(255,20,147,0.15);
  background: linear-gradient(135deg, var(--dark2) 60%, rgba(255,20,147,0.08));
  gap: 0.5rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  text-decoration: none;
}

.brand-mark {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--red), var(--pink));
  color: #fff;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 0 14px var(--glow-pink);
  animation: aurora-glow 8s ease-in-out infinite;
}

.brand-name {
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  line-height: 1.2;
  background: linear-gradient(90deg, #fff 30%, var(--pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.contact-btn {
  font-size: 0.75rem;
  font-family: var(--font-main);
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--red), var(--pink));
  padding: 0.35rem 0.65rem;
  min-height: 40px;
  display: flex;
  align-items: center;
  white-space: nowrap;
  flex-shrink: 0;
  transition: box-shadow var(--transition), transform var(--transition);
}

.contact-btn:hover {
  box-shadow: 0 0 16px var(--glow-pink);
  color: #fff;
  transform: translateY(-1px);
}

/* aside > nav > ul > li > a 结构 */
.site-aside > nav {
  padding: 1rem 0;
  flex: 1;
}

.site-aside > nav > ul {
  padding: 0;
}

.site-aside > nav > ul > li {
  border-bottom: 1px solid rgba(255,20,147,0.07);
}

.site-aside > nav > ul > li > a {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 0.6rem 1.2rem;
  font-family: var(--font-main);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-dim);
  transition: background var(--transition), color var(--transition), padding-left var(--transition);
  position: relative;
}

.site-aside > nav > ul > li > a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 3px;
  background: linear-gradient(var(--red), var(--pink));
  opacity: 0;
  transition: opacity var(--transition);
}

.site-aside > nav > ul > li > a:hover,
.site-aside > nav > ul > li > a.active {
  color: #fff;
  background: rgba(255,20,147,0.1);
  padding-left: 1.6rem;
}

.site-aside > nav > ul > li > a:hover::before,
.site-aside > nav > ul > li > a.active::before {
  opacity: 1;
}

/* 侧边 widget */
.aside-widget {
  padding: 1rem;
  border-top: 1px solid rgba(255,20,147,0.1);
  margin-top: auto;
}

.widget-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.7rem;
  font-family: var(--font-main);
}

.widget-links {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.widget-links li a {
  font-size: 0.85rem;
  color: var(--text-dim);
  display: block;
  padding: 0.25rem 0;
  transition: color var(--transition);
}

.widget-links li a:hover { color: var(--pink); }

.widget-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

/* ===== 主区域 ===== */
.main-wrapper {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

/* ===== Hero 区块 ===== */
.hero-section {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--dark2);
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 60% 40%, rgba(255,0,0,0.22) 0%, transparent 70%),
    radial-gradient(ellipse 60% 50% at 20% 70%, rgba(255,20,147,0.18) 0%, transparent 65%),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 39px,
      rgba(255,20,147,0.06) 39px,
      rgba(255,20,147,0.06) 40px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 39px,
      rgba(255,0,0,0.05) 39px,
      rgba(255,0,0,0.05) 40px
    );
  background-size: 200% 200%, 200% 200%, 40px 40px, 40px 40px;
  animation: mesh-move 12s ease-in-out infinite;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 2.5rem;
  padding: 3rem 3rem 3rem 2.5rem;
  max-width: 900px;
}

.hero-illus {
  flex-shrink: 0;
  animation: float-y 9s ease-in-out infinite;
  filter: drop-shadow(0 0 24px var(--glow-pink));
}

.hero-copy {
  flex: 1;
  text-align: left;
}

.hero-copy h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  background: linear-gradient(110deg, #fff 30%, var(--pink) 75%, var(--red));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.8rem;
  text-shadow: none;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-dim);
  max-width: 520px;
  margin-bottom: 1.6rem;
  line-height: 1.7;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0.7rem 2rem;
  background: linear-gradient(135deg, var(--red), var(--pink));
  color: #fff;
  font-family: var(--font-main);
  font-size: 1.05rem;
  font-weight: 700;
  transition: box-shadow var(--transition), transform var(--transition);
  box-shadow: 0 4px 24px var(--glow-pink);
}

.hero-cta:hover {
  box-shadow: 0 6px 32px var(--glow-red);
  transform: translateY(-2px);
  color: #fff;
}

/* ===== 栏目 Hero ===== */
.cat-hero, .inner-hero {
  position: relative;
  min-height: 32vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--dark2);
}

.cat-hero-inner, .inner-hero-inner {
  position: relative;
  z-index: 2;
  padding: 2.5rem 3rem;
}

.cat-eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-family: var(--font-main);
  font-weight: 700;
  color: var(--pink);
  letter-spacing: 0.12em;
  border: 1px solid rgba(255,20,147,0.4);
  padding: 0.2rem 0.75rem;
  margin-bottom: 0.8rem;
}

.cat-hero h1, .inner-hero h1 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  margin-bottom: 0.5rem;
}

.cat-hero p, .inner-hero p {
  color: var(--text-dim);
  font-size: 1rem;
  max-width: 600px;
}

/* ===== 主内容区 ===== */
/* main > section.wrap > article > div 四层结构 */
main {
  flex: 1;
  padding: 2.5rem 0;
}

main > section.wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

main > section.wrap > article {
  display: block;
}

main > section.wrap > article > div {
  display: block;
}

.content-section { display: block; }
.entries-section { display: block; }
.feat-section { display: block; }
.tags-section { display: block; }
.about-cta-section { display: block; }

.prose-content {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,20,147,0.1);
  padding: 2rem 2.2rem;
  box-shadow: 0 8px 40px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.04);
  position: relative;
}

.prose-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--red), var(--pink));
  opacity: 0.8;
}

.prose-content p { margin-bottom: 1rem; color: var(--text-dim); }
.prose-content h2 { margin-bottom: 0.5rem; }
.prose-content h3 { margin-bottom: 0.4rem; margin-top: 1.4rem; }
.prose-content ul, .prose-content ol { padding-left: 1.4rem; margin-bottom: 1rem; }
.prose-content li { margin-bottom: 0.35rem; color: var(--text-dim); }
.prose-content a { color: var(--pink); }
.prose-content a:hover { color: var(--red); }
.prose-content strong { color: #fff; font-weight: 600; }

/* 面包屑 */
.breadcrumb {
  padding: 0.8rem 3rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(255,20,147,0.08);
}

.breadcrumb a { color: var(--text-dim); }
.breadcrumb a:hover { color: var(--pink); }
.breadcrumb span[aria-hidden] { margin: 0 0.4rem; color: var(--text-muted); }

/* ===== Entry 详情页 ===== */
.entry-h1 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin-bottom: 0.75rem;
}

.entry-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.entry-date {
  font-size: 0.82rem;
  color: var(--text-muted);
  background: rgba(255,20,147,0.1);
  padding: 0.25rem 0.65rem;
  font-family: var(--font-main);
}

.entry-date.mod { background: rgba(255,0,0,0.1); }

.entry-hero-img-wrap {
  margin-bottom: 1.5rem;
}

.entry-hero-img {
  width: 100%;
  max-height: 360px;
  object-fit: cover;
}

/* ===== 卡片列表（子页卡片） ===== */
/* ul > li > div > h3/p 结构 */
.feat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.2rem;
}

.feat-grid > li > div.feat-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,20,147,0.15);
  box-shadow: 0 4px 20px rgba(0,0,0,0.35);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  height: 100%;
  position: relative;
  overflow: hidden;
}

.feat-grid > li > div.feat-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--red), var(--pink));
  transform: scaleX(0);
  transition: transform var(--transition);
}

.feat-grid > li > div.feat-card:hover {
  box-shadow: 0 8px 36px rgba(255,20,147,0.25);
  transform: translateY(-3px);
  border-color: rgba(255,20,147,0.4);
}

.feat-grid > li > div.feat-card:hover::after {
  transform: scaleX(1);
}

.feat-card-body {
  padding: 1.4rem 1.3rem;
}

.feat-card-body h3 {
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

.feat-card-body h3 a {
  color: #fff;
  transition: color var(--transition);
}

.feat-card-body h3 a:hover { color: var(--pink); }

.feat-card-body p {
  font-size: 0.86rem;
  color: var(--text-dim);
  margin-bottom: 0.7rem;
  line-height: 1.5;
}

.tag-count {
  font-size: 0.75rem;
  color: var(--pink);
  font-family: var(--font-main);
  font-weight: 600;
}

/* 详情条目列表 */
.entry-list {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.entry-list > li > div.entry-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,20,147,0.12);
  padding: 1.4rem 1.6rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  position: relative;
}

.entry-list > li > div.entry-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 3px;
  background: linear-gradient(var(--red), var(--pink));
  opacity: 0;
  transition: opacity var(--transition);
}

.entry-list > li > div.entry-card:hover {
  box-shadow: 0 6px 28px rgba(255,20,147,0.2);
  transform: translateX(4px);
  border-color: rgba(255,20,147,0.3);
}

.entry-list > li > div.entry-card:hover::before {
  opacity: 1;
}

.entry-card h3 {
  margin-bottom: 0.3rem;
}

.entry-card h3 a {
  color: #fff;
  transition: color var(--transition);
}

.entry-card h3 a:hover { color: var(--pink); }

.card-date {
  display: inline-block;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  font-family: var(--font-main);
}

.entry-card p {
  font-size: 0.9rem;
  color: var(--text-dim);
  margin-bottom: 0.7rem;
  line-height: 1.55;
}

.card-more {
  font-size: 0.82rem;
  color: var(--pink);
  font-family: var(--font-main);
  font-weight: 600;
  transition: color var(--transition), letter-spacing var(--transition);
}

.card-more:hover {
  color: var(--red);
  letter-spacing: 0.03em;
}

/* ===== 标签 ===== */
.tags-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.tag-pill {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0.35rem 1rem;
  background: rgba(255,20,147,0.1);
  border: 1px solid rgba(255,20,147,0.25);
  color: var(--text-dim);
  font-size: 0.85rem;
  font-family: var(--font-main);
  font-weight: 600;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
}

.tag-pill:hover {
  background: rgba(255,20,147,0.22);
  color: #fff;
  box-shadow: 0 2px 12px var(--glow-pink);
}

/* ===== 关于页 CTA ===== */
.about-cta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 1.2rem;
  margin-top: 0.5rem;
}

.about-cta-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.4rem;
  padding: 1.4rem 1.3rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,20,147,0.15);
  color: var(--text-dim);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

.about-cta-card:hover {
  box-shadow: 0 6px 28px var(--glow-pink);
  transform: translateY(-3px);
  border-color: rgba(255,20,147,0.4);
  color: #fff;
}

.cta-icon {
  font-size: 1.8rem;
  line-height: 1;
}

.about-cta-card strong {
  font-family: var(--font-main);
  font-size: 1rem;
  color: #fff;
  display: block;
}

.about-cta-card span {
  font-size: 0.83rem;
  line-height: 1.4;
}

/* ===== 页脚 ===== */
.site-footer {
  position: relative;
  background: var(--dark2);
  border-top: 1px solid rgba(255,20,147,0.15);
  overflow: hidden;
  margin-top: auto;
}

.footer-aurora {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 20% 50%, rgba(255,0,0,0.1) 0%, transparent 70%),
    radial-gradient(ellipse 50% 50% at 80% 50%, rgba(255,20,147,0.1) 0%, transparent 70%);
  animation: aurora-glow 10s ease-in-out infinite;
  pointer-events: none;
}

.footer-inner {
  position: relative;
  z-index: 2;
  padding: 1.5rem 2.5rem 1.2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 2rem;
}

/* footer address + ul 结构 */
.footer-brand-super {
  font-family: var(--font-main);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  background: linear-gradient(110deg, var(--red), var(--pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  flex-shrink: 0;
}

.footer-address {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
  font-style: normal;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-address a {
  color: var(--text-dim);
  min-height: 40px;
  display: inline-flex;
  align-items: center;
}

.footer-address a:hover { color: var(--pink); }

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 0.5rem;
  align-items: center;
}

.footer-links > li > a {
  font-size: 0.82rem;
  color: var(--text-muted);
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 0 0.4rem;
  transition: color var(--transition);
}

.footer-links > li > a:hover { color: var(--pink); }

.footer-copy {
  width: 100%;
  font-size: 0.78rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(255,20,147,0.08);
  padding-top: 0.8rem;
  margin-top: 0.3rem;
}

/* ===== 滚动视差 ===== */
.hero-grid-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 60% 40%, rgba(255,0,0,0.22) 0%, transparent 70%),
    radial-gradient(ellipse 60% 50% at 20% 70%, rgba(255,20,147,0.18) 0%, transparent 65%),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 39px,
      rgba(255,20,147,0.06) 39px,
      rgba(255,20,147,0.06) 40px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 39px,
      rgba(255,0,0,0.05) 39px,
      rgba(255,0,0,0.05) 40px
    );
  background-size: 200% 200%, 200% 200%, 40px 40px, 40px 40px;
  animation: mesh-move 12s ease-in-out infinite;
}

/* ===== 移动端响应式 ===== */
@media (max-width: 768px) {
  :root { --aside-w: 0px; }

  .page-shell {
    flex-direction: column;
  }

  .site-aside {
    width: 100%;
    height: auto;
    min-height: auto;
    position: static;
    border-right: none;
    border-bottom: 1px solid rgba(255,20,147,0.18);
  }

  .site-aside > nav > ul > li > a {
    min-height: 48px;
  }

  .brand-row {
    padding: 1rem;
  }

  .hero-inner {
    flex-direction: column;
    gap: 1.5rem;
    padding: 2rem 1.2rem;
    text-align: left;
  }

  .hero-section { min-height: 55vh; }

  .hero-copy { text-align: left; }

  main > section.wrap { padding: 0 1rem; }

  .cat-hero-inner, .inner-hero-inner { padding: 1.8rem 1.2rem; }

  .breadcrumb { padding: 0.7rem 1rem; }

  .footer-inner { padding: 1.2rem 1rem; }

  .footer-brand-super { font-size: 2rem; }

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

  .about-cta-grid { grid-template-columns: 1fr 1fr; }

  .prose-content { padding: 1.3rem 1.1rem; }
}

@media (max-width: 480px) {
  .feat-grid { grid-template-columns: 1fr; }
  .about-cta-grid { grid-template-columns: 1fr; }
  h1 { font-size: 1.7rem; }
  .hero-copy h1 { font-size: 1.8rem; }
}

/* ===== 工具 ===== */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}