/* =============================================
   主样式表 — 淡蓝色主题个人日志
   ============================================= */

/* --- CSS 变量 --- */
:root {
  --blue-50:  #f0f7ff;
  --blue-100: #dbeefe;
  --blue-200: #b0d9fd;
  --blue-300: #7cc2fa;
  --blue-400: #48a6f5;
  --blue-500: #2490e8;
  --blue-600: #1672c9;
  --blue-700: #125ca5;
  --blue-800: #154f88;
  --blue-900: #163f6a;

  --accent:   #5bb8ff;
  --accent-2: #a8d8ff;

  --text-primary:   #1a2b3c;
  --text-secondary: #4a6180;
  --text-muted:     #8ea8c0;
  --text-light:     #b8cfe0;

  --surface:        #ffffff;
  --surface-2:      #f5faff;
  --surface-3:      #eaf4fe;
  --border:         #d4e8f7;
  --border-light:   #e8f3fc;

  --shadow-sm:  0 1px 3px rgba(36, 100, 180, .08);
  --shadow-md:  0 4px 16px rgba(36, 100, 180, .12);
  --shadow-lg:  0 12px 40px rgba(36, 100, 180, .15);
  --shadow-xl:  0 24px 64px rgba(36, 100, 180, .18);

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  32px;

  --font-serif: 'Noto Serif SC', 'Songti SC', serif;
  --font-sans:  'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;

  --transition: .3s cubic-bezier(.4, 0, .2, 1);
  --transition-slow: .6s cubic-bezier(.4, 0, .2, 1);
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: var(--surface);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: var(--blue-500); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--blue-700); }

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

/* --- Layout --- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 88px 0;
}

/* =============================================
   HEADER / NAV
   ============================================= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 64px;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: .02em;
}

.logo-icon {
  color: var(--blue-500);
  font-size: 1.2rem;
  animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .7; transform: scale(.9); }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-links a {
  display: block;
  padding: 6px 14px;
  color: var(--text-secondary);
  font-size: .9rem;
  font-weight: 400;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--blue-600);
  background: var(--surface-3);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: 64px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, #f0f8ff 0%, #e6f3ff 40%, #f8fcff 100%);
}

/* 光晕球 */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: .4;
}

.orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, #b8d9f8, transparent 70%);
  top: -200px; right: -100px;
  animation: floatOrb 12s ease-in-out infinite;
}

.orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #7ec8f9, transparent 70%);
  bottom: 0; left: -80px;
  animation: floatOrb 16s ease-in-out infinite reverse;
}

.orb-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, #c5e6ff, transparent 70%);
  top: 40%; left: 40%;
  animation: floatOrb 10s ease-in-out infinite 2s;
}

@keyframes floatOrb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(30px, -30px) scale(1.05); }
  66%       { transform: translate(-20px, 20px) scale(.95); }
}

/* 网格线 */
.grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(180, 215, 245, .3) 1px, transparent 1px),
    linear-gradient(90deg, rgba(180, 215, 245, .3) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 24px;
  max-width: 800px;
  animation: fadeUp .8s ease both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-eyebrow {
  display: inline-block;
  font-size: .8rem;
  font-weight: 500;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--blue-500);
  background: var(--blue-50);
  border: 1px solid var(--blue-200);
  padding: 5px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
  animation: fadeUp .8s ease .1s both;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.25;
  letter-spacing: .02em;
  margin-bottom: 20px;
  animation: fadeUp .8s ease .2s both;
}

.hero-title em {
  font-style: normal;
  color: var(--blue-500);
  position: relative;
}

.hero-title em::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue-300), var(--blue-500));
  border-radius: 2px;
  opacity: .6;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 480px;
  margin: 0 auto 36px;
  animation: fadeUp .8s ease .3s both;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 56px;
  animation: fadeUp .8s ease .4s both;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  animation: fadeUp .8s ease .5s both;
}

.stat {
  text-align: center;
  padding: 0 28px;
}

.stat-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  color: var(--blue-600);
  line-height: 1;
}

.stat-label {
  display: block;
  font-size: .78rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

.hero-scroll-hint {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: .75rem;
  letter-spacing: .08em;
  animation: fadeUp .8s ease .8s both;
}

.scroll-arrow {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--blue-300), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: .3; transform: scaleY(1); }
  50%       { opacity: 1; transform: scaleY(1.2); }
}

/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: .9rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--blue-500);
  color: #fff;
  box-shadow: 0 4px 16px rgba(36, 144, 232, .35);
}

.btn-primary:hover {
  background: var(--blue-600);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(36, 144, 232, .45);
}

.btn-ghost {
  background: rgba(255,255,255,.7);
  color: var(--blue-600);
  border: 1.5px solid var(--blue-200);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  background: var(--blue-50);
  border-color: var(--blue-400);
  color: var(--blue-700);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--blue-600);
  border: 1.5px solid var(--blue-300);
}

.btn-outline:hover {
  background: var(--blue-50);
  border-color: var(--blue-500);
  color: var(--blue-700);
}

/* =============================================
   SECTION HEADERS
   ============================================= */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--blue-500);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 10px;
}

.section-sub {
  color: var(--text-muted);
  font-size: .95rem;
}

.section-footer {
  text-align: center;
  margin-top: 48px;
}

/* =============================================
   POSTS SECTION
   ============================================= */
.posts-section {
  background: var(--surface);
}

.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.post-card {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  animation: fadeUp .6s ease both;
}

.post-card[data-delay="0"] { animation-delay: .0s; }
.post-card[data-delay="1"] { animation-delay: .08s; }
.post-card[data-delay="2"] { animation-delay: .16s; }
.post-card[data-delay="3"] { animation-delay: .24s; }
.post-card[data-delay="4"] { animation-delay: .32s; }
.post-card[data-delay="5"] { animation-delay: .40s; }

.post-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--blue-200);
}

.post-card--featured {
  grid-column: span 2;
}

.post-card-inner {
  padding: 28px;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.post-cat {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: .72rem;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 100px;
}

.post-cat--work {
  background: #eff6ff;
  color: #2563eb;
  border: 1px solid #bfdbfe;
}

.post-cat--life {
  background: #f0fdf4;
  color: #16a34a;
  border: 1px solid #bbf7d0;
}

.post-date {
  font-size: .78rem;
  color: var(--text-muted);
}

.post-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--text-primary);
}

.post-title a {
  color: inherit;
}

.post-title a:hover {
  color: var(--blue-600);
}

.post-card--featured .post-title {
  font-size: 1.35rem;
}

.post-excerpt {
  font-size: .88rem;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
}

.read-more {
  font-size: .82rem;
  font-weight: 500;
  color: var(--blue-500);
  display: flex;
  align-items: center;
  gap: 4px;
}

.read-more:hover { color: var(--blue-700); }

.read-more .arrow {
  transition: transform var(--transition);
}

.read-more:hover .arrow { transform: translateX(4px); }

.post-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.tag {
  font-size: .72rem;
  color: var(--text-muted);
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 0;
  color: var(--text-muted);
}

.empty-icon { font-size: 3rem; margin-bottom: 16px; }

/* =============================================
   CATEGORY SECTION
   ============================================= */
.category-section {
  background: var(--surface-2);
}

.category-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.category-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 40px 36px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.category-card--work {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}

.category-card--life {
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.category-icon {
  font-size: 2.8rem;
  flex-shrink: 0;
}

.category-info { flex: 1; }

.category-info h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.category-info p {
  font-size: .88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.category-count {
  display: inline-block;
  margin-top: 10px;
  font-size: .8rem;
  font-weight: 500;
  color: var(--blue-600);
  background: rgba(255,255,255,.7);
  padding: 3px 10px;
  border-radius: 100px;
}

.category-arrow {
  font-size: 1.4rem;
  color: var(--text-muted);
  transition: transform var(--transition);
}

.category-card:hover .category-arrow {
  transform: translateX(6px);
  color: var(--blue-500);
}

.category-bg-shape {
  position: absolute;
  right: -30px;
  bottom: -30px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(255,255,255,.25);
  pointer-events: none;
}

/* =============================================
   FOOTER
   ============================================= */
.site-footer {
  background: var(--blue-900);
  color: rgba(255,255,255,.7);
  padding: 56px 0 32px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.footer-brand .logo-icon { color: var(--blue-300); font-size: 1.3rem; }

.footer-name {
  display: inline-block;
  color: #fff;
  font-size: 1.15rem;
  font-weight: 600;
  margin-left: 8px;
}

.footer-tagline {
  margin-top: 8px;
  font-size: .85rem;
  color: rgba(255,255,255,.45);
}

.footer-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.footer-links a {
  color: rgba(255,255,255,.5);
  font-size: .88rem;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.footer-links a:hover {
  color: #fff;
  background: rgba(255,255,255,.1);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 24px;
  font-size: .8rem;
  color: rgba(255,255,255,.3);
  text-align: center;
}

/* =============================================
   文章详情页
   ============================================= */
.post-hero {
  padding: 120px 0 64px;
  background: linear-gradient(160deg, var(--blue-50), var(--surface-2));
  border-bottom: 1px solid var(--border);
}

.post-hero-inner { max-width: 760px; margin: 0 auto; padding: 0 24px; }

.post-hero-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.post-hero-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.post-hero-info {
  display: flex;
  gap: 20px;
  color: var(--text-muted);
  font-size: .85rem;
  flex-wrap: wrap;
}

.post-body {
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 24px;
}

.post-body p { margin-bottom: 1.4em; font-size: 1.02rem; line-height: 1.9; color: var(--text-secondary); }
.post-body strong { color: var(--text-primary); font-weight: 600; }
.post-body em { color: var(--blue-600); }

.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.post-nav-item {
  padding: 20px;
  border-radius: var(--radius-md);
  background: var(--surface-2);
  border: 1px solid var(--border-light);
  transition: all var(--transition);
}

.post-nav-item:hover {
  border-color: var(--blue-300);
  background: var(--blue-50);
}

.post-nav-item small {
  display: block;
  font-size: .72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: 6px;
}

.post-nav-item span {
  font-size: .9rem;
  font-weight: 500;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-nav-item.next { text-align: right; }

/* =============================================
   列表页（归档/分类）
   ============================================= */
.page-hero {
  padding: 120px 0 56px;
  background: linear-gradient(160deg, var(--blue-50), var(--surface));
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.page-hero-emoji { font-size: 3rem; margin-bottom: 16px; }

.page-hero h1 {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.page-hero p { color: var(--text-secondary); font-size: 1rem; }

.post-list {
  max-width: 800px;
  margin: 0 auto;
  padding: 56px 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.post-list-item {
  display: flex;
  gap: 20px;
  padding: 24px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border-light);
  transition: all var(--transition);
}

.post-list-item:hover {
  transform: translateX(6px);
  border-color: var(--blue-200);
  box-shadow: var(--shadow-sm);
}

.post-list-date {
  flex-shrink: 0;
  text-align: right;
  min-width: 80px;
  font-size: .78rem;
  color: var(--text-muted);
  padding-top: 2px;
}

.post-list-content h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.post-list-content h3 a { color: inherit; }
.post-list-content h3 a:hover { color: var(--blue-600); }

.post-list-content p {
  font-size: .85rem;
  color: var(--text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* =============================================
   WRITE / EDIT FORM
   ============================================= */
.write-form {
  max-width: 800px;
  margin: 0 auto;
  padding: 100px 24px 64px;
}

.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-size: .85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: .95rem;
  color: var(--text-primary);
  background: var(--surface);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  appearance: none;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--blue-400);
  box-shadow: 0 0 0 3px rgba(36, 144, 232, .12);
}

.form-textarea { resize: vertical; min-height: 280px; line-height: 1.8; }

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.form-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* =============================================
   PAGINATION
   ============================================= */
.pagination {
  display: flex;
  gap: 6px;
  justify-content: center;
  padding: 32px 0;
}

.pagination a, .pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  font-size: .88rem;
  border: 1.5px solid var(--border);
  color: var(--text-secondary);
  transition: all var(--transition);
}

.pagination a:hover {
  border-color: var(--blue-400);
  color: var(--blue-600);
  background: var(--blue-50);
}

.pagination .current {
  background: var(--blue-500);
  border-color: var(--blue-500);
  color: #fff;
  font-weight: 600;
}

/* =============================================
   ABOUT PAGE
   ============================================= */
.about-content {
  max-width: 680px;
  margin: 0 auto;
  padding: 64px 24px;
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.9;
}

.about-content h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--text-primary);
  margin: 40px 0 16px;
}

.about-content p { margin-bottom: 1.2em; }

/* =============================================
   RESPONSIVE — 平板
   ============================================= */
@media (max-width: 900px) {
  .posts-grid { grid-template-columns: 1fr 1fr; }
  .post-card--featured { grid-column: span 2; }
  .category-grid { grid-template-columns: 1fr; }
}

/* =============================================
   RESPONSIVE — 手机
   ============================================= */
@media (max-width: 600px) {
  .section { padding: 56px 0; }

  /* Nav */
  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: rgba(255,255,255,.97);
    backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 16px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    transition: all var(--transition);
    pointer-events: none;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links a {
    padding: 12px 16px;
    font-size: 1rem;
  }

  /* Hero */
  .hero-title { font-size: 2rem; }
  .hero-stats { gap: 0; }
  .stat { padding: 0 16px; }
  .stat-num { font-size: 1.5rem; }

  /* Posts */
  .posts-grid { grid-template-columns: 1fr; }
  .post-card--featured { grid-column: span 1; }

  /* Category */
  .category-card { padding: 28px 24px; }
  .category-icon { font-size: 2rem; }

  /* Footer */
  .footer-content { flex-direction: column; gap: 24px; }

  /* Post list */
  .post-list-item { flex-direction: column; gap: 8px; }
  .post-list-date { text-align: left; }

  /* Post nav */
  .post-nav { grid-template-columns: 1fr; }
}