@import url('https://fonts.googleapis.com/css2?family=Atkinson+Hyperlegible:wght@400;700&family=Crimson+Pro:wght@400;500;600;700&display=swap');

/* ===== 基础变量 ===== */
:root {
  --c-primary: #99ffcc;
  --c-accent: #00ff41;
  --c-ink: #001e3c;
  --c-ink-80: rgba(0,30,60,0.8);
  --c-ink-60: rgba(0,30,60,0.6);
  --c-surface: #002a52;
  --c-surface-2: #003666;
  --c-surface-3: #004080;
  --c-text: #e8f8f0;
  --c-text-muted: #9abfb0;
  --c-border: rgba(153,255,204,0.18);
  --c-glow: rgba(0,255,65,0.22);
  --c-glow-strong: rgba(153,255,204,0.35);
  --radius-card: 10px;
  --radius-sm: 6px;
  --font-serif: 'Crimson Pro', Georgia, 'Times New Roman', serif;
  --font-body: 'Atkinson Hyperlegible', system-ui, -apple-system, sans-serif;
  --bnav-h: 60px;
  --max-content: 780px;
  --max-wide: 1200px;
  --shadow-card: 0 4px 24px rgba(0,255,65,0.10), 0 1px 6px rgba(0,30,60,0.5);
  --shadow-hover: 0 8px 36px rgba(0,255,65,0.22), 0 2px 10px rgba(0,30,60,0.6);
  --transition-base: 0.28s cubic-bezier(0.4,0,0.2,1);
}

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

html {
  font-size: 17px;
  line-height: 1.65;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--c-ink);
  color: var(--c-text);
  min-height: 100vh;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse 80% 60% at 20% 10%, rgba(0,255,65,0.04) 0%, transparent 60%),
    radial-gradient(ellipse 60% 80% at 80% 90%, rgba(153,255,204,0.05) 0%, transparent 60%);
}

/* ===== 有机纹理背景 ===== */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    radial-gradient(circle 320px at 15% 25%, rgba(0,255,65,0.05) 0%, transparent 70%),
    radial-gradient(circle 480px at 85% 75%, rgba(153,255,204,0.04) 0%, transparent 70%),
    radial-gradient(circle 200px at 60% 40%, rgba(0,255,65,0.03) 0%, transparent 60%);
  animation: breathe 8s ease-in-out infinite alternate;
}

@keyframes breathe {
  0%   { opacity: 0.6; transform: scale(1); }
  100% { opacity: 1;   transform: scale(1.04); }
}

@media (prefers-reduced-motion: reduce) {
  body::before { animation: none; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ===== 页面骨架 ===== */
.page-wrapper {
  position: relative;
  z-index: 1;
  padding-bottom: calc(var(--bnav-h) + 16px);
  min-height: 100vh;
}

/* ===== 正文容器结构：main > article.wrap > div > section ===== */
main {
  width: 100%;
}

.wrap {
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== 内容区带侧边栏 ===== */
.content-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding: 40px 0;
}

@media (min-width: 860px) {
  .content-section {
    grid-template-columns: 220px 1fr;
    align-items: start;
  }
  .content-aside {
    order: -1;
  }
  .content-article {
    order: 1;
  }
}

/* ===== 文章区 ===== */
.content-article {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.content-article::before {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 160px; height: 160px;
  border-radius: 50% 30% 60% 40% / 50% 60% 40% 50%;
  background: radial-gradient(circle, rgba(0,255,65,0.06) 0%, transparent 70%);
  pointer-events: none;
  animation: cellFloat 12s ease-in-out infinite alternate;
}

@keyframes cellFloat {
  0%   { transform: translate(0,0) scale(1); border-radius: 50% 30% 60% 40% / 50% 60% 40% 50%; }
  100% { transform: translate(-20px, 15px) scale(1.1); border-radius: 40% 60% 30% 70% / 60% 40% 70% 30%; }
}

/* ===== 文章头部 ===== */
.article-header {
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--c-border);
}

.cat-eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--c-accent);
  text-transform: none;
  font-weight: 700;
  margin-bottom: 8px;
}

.breadcrumb {
  font-size: 0.85rem;
  color: var(--c-text-muted);
  margin-bottom: 10px;
}

.breadcrumb a {
  color: var(--c-primary);
  text-decoration: none;
}

.breadcrumb a:hover { text-decoration: underline; }

h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--c-primary);
  line-height: 1.25;
  margin-bottom: 10px;
}

.cat-intro {
  color: var(--c-text-muted);
  font-size: 1rem;
  margin-top: 8px;
}

/* ===== 日期 ===== */
.entry-date {
  display: inline-block;
  font-size: 0.82rem;
  color: var(--c-text-muted);
  margin-right: 14px;
  margin-top: 6px;
}

.entry-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

/* ===== 正文 ===== */
.article-body {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--c-text);
}

.article-body h2,
.article-body h3 {
  font-family: var(--font-serif);
  color: var(--c-primary);
  margin: 1.6em 0 0.6em;
}

.article-body h2 { font-size: 1.4rem; }
.article-body h3 { font-size: 1.15rem; }

.article-body p { margin-bottom: 1.1em; }

.article-body a {
  color: var(--c-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-body a:hover { color: var(--c-primary); }

.article-body ul, .article-body ol {
  padding-left: 1.4em;
  margin-bottom: 1em;
}

.article-body li { margin-bottom: 0.35em; }

.article-body img {
  max-width: 100%;
  border-radius: var(--radius-sm);
  display: block;
  margin: 1em 0;
}

/* ===== 侧边栏 ===== */
.content-aside {
  position: sticky;
  top: 20px;
}

.aside-inner {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: 20px;
  box-shadow: var(--shadow-card);
}

.aside-heading {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--c-accent);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--c-border);
  font-weight: 600;
}

.aside-heading span { display: inline; }

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

.aside-links dt,
.aside-links dd {
  margin: 0;
}

.aside-links a {
  display: block;
  padding: 7px 10px;
  color: var(--c-text);
  text-decoration: none;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition-base), color var(--transition-base);
  border-left: 2px solid transparent;
}

.aside-links a:hover {
  background: var(--c-surface-2);
  color: var(--c-primary);
  border-left-color: var(--c-accent);
}

/* ===== 子页列表（ul > li > section > h3/p）===== */
.children-section {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--c-border);
}

.children-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--c-primary);
  margin-bottom: 20px;
}

.children-title span { display: inline; }

.children-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

@media (min-width: 600px) {
  .children-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.child-item {
  list-style: none;
}

.child-card {
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: 18px 16px;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
  position: relative;
  overflow: hidden;
}

.child-card::after {
  content: '';
  position: absolute;
  bottom: -20px; left: -20px;
  width: 80px; height: 80px;
  border-radius: 50% 40% 60% 30%;
  background: radial-gradient(circle, rgba(153,255,204,0.07) 0%, transparent 70%);
  pointer-events: none;
}

.child-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
  border-color: rgba(153,255,204,0.35);
}

.child-card h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.child-card h3 span { display: inline; }

.child-card h3 a {
  color: var(--c-primary);
  text-decoration: none;
}

.child-card h3 a:hover { color: var(--c-accent); }

.child-desc {
  font-size: 0.88rem;
  color: var(--c-text-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.child-card time {
  display: block;
  font-size: 0.78rem;
  color: var(--c-text-muted);
  margin-top: 8px;
}

/* ===== 相关内容 ===== */
.related-section {
  padding: 32px 0 40px;
}

.rel-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

@media (min-width: 640px) {
  .rel-grid { grid-template-columns: repeat(4, 1fr); }
}

.rel-item { list-style: none; }

.rel-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: 14px;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  height: 100%;
}

.rel-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.rel-card h3 {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  margin-bottom: 5px;
}

.rel-card h3 span { display: inline; }

.rel-card h3 a {
  color: var(--c-primary);
  text-decoration: none;
}

.rel-card h3 a:hover { color: var(--c-accent); }

.rel-card p {
  font-size: 0.82rem;
  color: var(--c-text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== 通用区块标题 ===== */
.section-title {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--c-primary);
  margin-bottom: 24px;
  position: relative;
  display: inline-block;
}

.section-title span { display: inline; }

.section-title::after {
  content: '';
  display: block;
  height: 2px;
  width: 60px;
  background: linear-gradient(90deg, var(--c-accent), transparent);
  margin-top: 6px;
  border-radius: 2px;
}

/* ===== 首页 Hero ===== */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  padding: 80px 0 40px;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 30% 40%, rgba(0,255,65,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 50% 70% at 80% 60%, rgba(153,255,204,0.05) 0%, transparent 60%);
  pointer-events: none;
  animation: heroBreathe 10s ease-in-out infinite alternate;
}

@keyframes heroBreathe {
  0%   { opacity: 0.7; }
  100% { opacity: 1; }
}

.hero-article {
  display: flex;
  flex-direction: column;
  gap: 40px;
  width: 100%;
  position: relative;
  z-index: 1;
}

@media (min-width: 860px) {
  .hero-article {
    flex-direction: row;
    align-items: center;
  }
  .hero-text { flex: 1; }
  .hero-media { flex: 1; }
}

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

.hero-h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 6vw, 3.6rem);
  font-weight: 700;
  color: var(--c-primary);
  line-height: 1.15;
  margin-bottom: 18px;
  text-shadow: 0 0 40px rgba(0,255,65,0.3);
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--c-text-muted);
  max-width: 480px;
  line-height: 1.7;
  margin-bottom: 28px;
}

.hero-cta {
  display: inline-block;
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--c-accent), var(--c-primary));
  color: var(--c-ink);
  font-weight: 700;
  font-size: 1rem;
  border-radius: 100px;
  text-decoration: none;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  box-shadow: 0 4px 20px rgba(0,255,65,0.35);
}

.hero-cta:hover {
  box-shadow: 0 8px 32px rgba(0,255,65,0.55);
  transform: translateY(-2px);
}

.hero-img {
  width: 100%;
  border-radius: 20px 40px 20px 40px;
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-hover);
  animation: imgMorph 14s ease-in-out infinite alternate;
}

@keyframes imgMorph {
  0%   { border-radius: 20px 40px 20px 40px; }
  50%  { border-radius: 40px 20px 50px 10px; }
  100% { border-radius: 10px 50px 20px 40px; }
}

/* ===== 首页内容区 ===== */
.home-wrapper main { padding-top: 0; }

.home-content-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding: 48px 0 32px;
}

@media (min-width: 860px) {
  .home-content-section {
    grid-template-columns: 200px 1fr;
  }
  .home-aside { order: -1; }
  .home-content-article { order: 1; }
}

.home-content-article {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
}

.home-aside {
  position: sticky;
  top: 20px;
}

.page-content-body {
  font-size: 1rem;
  line-height: 1.75;
}

.page-content-body h2,
.page-content-body h3 {
  font-family: var(--font-serif);
  color: var(--c-primary);
  margin: 1.4em 0 0.5em;
}

.page-content-body p { margin-bottom: 1em; }

.page-content-body a {
  color: var(--c-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.quick-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.quick-links li a {
  display: block;
  padding: 8px 10px;
  color: var(--c-text);
  font-size: 0.88rem;
  text-decoration: none;
  border-radius: var(--radius-sm);
  border-left: 2px solid transparent;
  transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
}

.quick-links li a:hover {
  background: var(--c-surface-2);
  color: var(--c-primary);
  border-left-color: var(--c-accent);
}

/* ===== 首页分类卡片区 ===== */
.cats-section {
  padding: 40px 0;
}

.cat-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

@media (min-width: 700px) {
  .cat-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1000px) {
  .cat-grid { grid-template-columns: repeat(5, 1fr); }
}

.cat-item { list-style: none; }

.cat-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: 20px 16px;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: 10px;
  height: 100%;
  position: relative;
  overflow: hidden;
}

.cat-card::before {
  content: '';
  position: absolute;
  top: -30px; right: -30px;
  width: 100px; height: 100px;
  border-radius: 60% 40% 70% 30% / 50% 60% 40% 50%;
  background: radial-gradient(circle, rgba(0,255,65,0.06) 0%, transparent 70%);
  pointer-events: none;
  transition: transform var(--transition-base);
}

.cat-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: rgba(153,255,204,0.4);
}

.cat-card:hover::before {
  transform: scale(1.3) translate(-10px, 10px);
}

.cat-card h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--c-primary);
  font-weight: 600;
}

.cat-card h3 span { display: inline; }

.cat-desc {
  font-size: 0.82rem;
  color: var(--c-text-muted);
  line-height: 1.5;
  flex: 1;
}

.cat-entries {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.cat-entries li a {
  font-size: 0.8rem;
  color: var(--c-text-muted);
  text-decoration: none;
  transition: color var(--transition-base);
  display: block;
  padding: 2px 0;
}

.cat-entries li a:hover { color: var(--c-accent); }

.cat-link {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--c-accent);
  text-decoration: none;
  font-weight: 700;
  margin-top: auto;
  transition: color var(--transition-base);
}

.cat-link:hover { color: var(--c-primary); }

/* ===== 首页精选指南 ===== */
.featured-section {
  padding: 40px 0 56px;
}

.feat-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

@media (min-width: 700px) {
  .feat-grid { grid-template-columns: repeat(3, 1fr); }
}

.feat-item { list-style: none; }

.feat-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: 18px 14px;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
}

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

.feat-card h3 {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--c-primary);
}

.feat-card h3 span { display: inline; }

.feat-card p {
  font-size: 0.83rem;
  color: var(--c-text-muted);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.feat-link {
  font-size: 0.82rem;
  color: var(--c-accent);
  text-decoration: none;
  font-weight: 700;
  transition: color var(--transition-base);
}

.feat-link:hover { color: var(--c-primary); }

/* ===== 关于页 ===== */
.about-body {
  font-size: 1rem;
  line-height: 1.8;
}

.about-nav-block {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--c-border);
}

.about-nav-block h2 {
  font-family: var(--font-serif);
  color: var(--c-primary);
  font-size: 1.2rem;
  margin-bottom: 16px;
}

.about-nav-block h2 span { display: inline; }

.about-cats {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.about-cats li a {
  display: inline-block;
  padding: 8px 16px;
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: 100px;
  color: var(--c-text);
  font-size: 0.9rem;
  text-decoration: none;
  transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
  min-height: 40px;
  line-height: 1.3;
  display: flex;
  align-items: center;
}

.about-cats li a:hover {
  background: var(--c-surface-3);
  color: var(--c-primary);
  border-color: var(--c-accent);
}

/* ===== 隐私页 ===== */
.privacy-body {
  font-size: 0.97rem;
  line-height: 1.8;
  color: var(--c-text-muted);
}

.privacy-body h2, .privacy-body h3 {
  font-family: var(--font-serif);
  color: var(--c-primary);
  margin: 1.5em 0 0.6em;
}

.privacy-body p { margin-bottom: 1em; }

/* ===== 标签页列表 ===== */
.tag-list {
  grid-template-columns: 1fr;
}

@media (min-width: 600px) {
  .tag-list { grid-template-columns: repeat(2, 1fr); }
}

.tag-card {
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: 16px;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.tag-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.tag-card h3 {
  font-family: var(--font-serif);
  font-size: 1rem;
  margin-bottom: 6px;
}

.tag-card h3 span { display: inline; }

.tag-card h3 a {
  color: var(--c-primary);
  text-decoration: none;
}

.tag-card h3 a:hover { color: var(--c-accent); }

.tag-card p {
  font-size: 0.85rem;
  color: var(--c-text-muted);
}

/* ===== entry 页图片 ===== */
.entry-img-wrap {
  margin-bottom: 24px;
}

.entry-hero-img {
  width: 100%;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

/* ===== 页脚：footer > div×n ===== */
.site-footer {
  background: var(--c-surface);
  border-top: 1px solid var(--c-border);
  padding: 0 0 calc(var(--bnav-h) + 10px);
  position: relative;
  z-index: 1;
}

.footer-brand {
  padding: 32px 20px 20px;
  max-width: var(--max-wide);
  margin: 0 auto;
  border-bottom: 1px solid var(--c-border);
}

.footer-logo-name {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--c-primary);
  font-weight: 700;
  margin-bottom: 6px;
}

.footer-desc {
  font-size: 0.85rem;
  color: var(--c-text-muted);
  max-width: 480px;
  line-height: 1.6;
}

.footer-nav-section {
  padding: 20px;
  max-width: var(--max-wide);
  margin: 0 auto;
  border-bottom: 1px solid var(--c-border);
}

.footer-dl {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  list-style: none;
}

.footer-dl dt,
.footer-dl dd {
  margin: 0;
}

.footer-dl a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  color: var(--c-text-muted);
  font-size: 0.88rem;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color var(--transition-base), background var(--transition-base);
  min-height: 40px;
}

.footer-dl a:hover {
  color: var(--c-primary);
  background: var(--c-surface-2);
}

.nav-icon {
  color: var(--c-accent);
  font-size: 0.7rem;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px 20px;
  max-width: var(--max-wide);
  margin: 0 auto;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--c-text-muted);
}

.footer-links {
  display: flex;
  gap: 14px;
}

.footer-links a {
  font-size: 0.8rem;
  color: var(--c-text-muted);
  text-decoration: none;
  transition: color var(--transition-base);
  min-height: 40px;
  display: inline-flex;
  align-items: center;
}

.footer-links a:hover { color: var(--c-primary); }

/* ===== 底部固定导航条（footer 内 nav > dl > dt/dd > a）===== */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--bnav-h);
  background: rgba(0,30,60,0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  z-index: 100;
  box-shadow: 0 -4px 20px rgba(0,255,65,0.08);
}

.bnav-brand {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--c-primary);
  text-decoration: none;
  white-space: nowrap;
  min-height: 40px;
  display: flex;
  align-items: center;
  padding: 0 6px;
  flex-shrink: 0;
}

.bnav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  justify-content: center;
  overflow: hidden;
}

.bnav-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  min-height: 40px;
  padding: 4px 8px;
  color: var(--c-text-muted);
  text-decoration: none;
  font-size: 0.65rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-base), background var(--transition-base);
  white-space: nowrap;
}

.bnav-link:hover,
.bnav-link.active {
  color: var(--c-primary);
  background: rgba(153,255,204,0.08);
}

.bnav-icon {
  font-size: 0.85rem;
  color: var(--c-accent);
  line-height: 1;
}

.bnav-label {
  font-size: 0.62rem;
}

.bnav-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  background: linear-gradient(135deg, var(--c-accent), var(--c-primary));
  color: var(--c-ink);
  font-size: 0.82rem;
  font-weight: 700;
  border-radius: 100px;
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
  transition: box-shadow var(--transition-base), opacity var(--transition-base);
  box-shadow: 0 2px 10px rgba(0,255,65,0.35);
}

.bnav-cta:hover {
  box-shadow: 0 4px 18px rgba(0,255,65,0.55);
  opacity: 0.92;
}

/* ===== 通用链接 ===== */
a { color: var(--c-primary); }

/* ===== 响应式 ===== */
@media (max-width: 599px) {
  .wrap { padding: 0 14px; }
  .content-article { padding: 20px 16px; }
  .hero-section { padding: 60px 0 32px; min-height: 100svh; }
  .hero-h1 { font-size: 1.9rem; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .feat-grid { grid-template-columns: 1fr; }
  .rel-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  h1 { font-size: 1.5rem; }
  .bnav-brand { font-size: 0.82rem; }
}

@media (min-width: 600px) and (max-width: 859px) {
  .hero-h1 { font-size: 2.4rem; }
}

/* ===== 无障碍焦点 ===== */
:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ===== 选中 ===== */
::selection {
  background: rgba(0,255,65,0.28);
  color: var(--c-text);
}