:root {
  /* Aeoleaf "风叶" autumnal palette — warm cream ground, maple accents, pine rest. */
  --bg: #FAF7F0;
  --text: #141414;
  --accent: #8B3A2E;
  --accent-hover: #6F2C22;
  --accent-secondary: #C4906E;
  --accent-tertiary: #3A5F4A;
  --secondary: #5A4A3E;
  --surface: #F1EADB;
  --border: #DDD2BC;
  --text-muted: #4A4A4A;
  --gradient-primary: linear-gradient(135deg, #8B3A2E 0%, #C4906E 100%);
  --gradient-surface: linear-gradient(180deg, rgba(241,234,219,0.7) 0%, rgba(241,234,219,1) 100%);
  --font-sans: 'Inter', 'Noto Sans SC', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-display: 'Fraunces', 'Noto Serif SC', Georgia, 'Songti SC', serif;
  --font-serif: var(--font-display);
  /* Longform / titles: Fraunces + Noto Serif SC (C2 portfolio axis). */
  --font-journal: 'Fraunces', 'Noto Serif SC', Georgia, 'Songti SC', serif;
  --font-mono: 'JetBrains Mono', 'Noto Sans Mono', 'Consolas', monospace;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --container-max: min(98%, 1800px);
  --content-max: min(92%, 1200px);
  --nav-height: 4.5rem;
  --radius: 8px;
  --radius-lg: 16px;
  /* Card surface tokens (home + lists) */
  --card-radius: var(--radius-lg);
  --card-pad: var(--space-8);
  --card-shadow: var(--shadow-md);
  --card-shadow-hover: var(--shadow-lg);
  --card-hover-lift: -6px;
  /* Motion tokens */
  --ease-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-emphasis: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-1: 120ms;
  --dur-2: 240ms;
  --dur-3: 400ms;
  /* Duration + easing pair; use like `transition: opacity var(--transition)` */
  --transition: var(--dur-2) var(--ease-out);
  --shadow-sm: 0 1px 2px rgba(42, 28, 18, 0.06), 0 2px 6px rgba(42, 28, 18, 0.04);
  --shadow-md: 0 4px 10px rgba(42, 28, 18, 0.06), 0 10px 24px rgba(42, 28, 18, 0.08);
  --shadow-lg: 0 12px 28px rgba(42, 28, 18, 0.12), 0 20px 40px rgba(42, 28, 18, 0.08);
  --shadow-xl: 0 24px 60px rgba(42, 28, 18, 0.18);
}

[data-theme="dark"] {
  /* Softened off-black, never pure #000, to avoid OLED sub-pixel shimmer. */
  --bg: #0E0E10;
  --text: #EDE6D5;
  --accent: #D98B6E;
  --accent-hover: #E8A386;
  --accent-secondary: #E0B08E;
  --accent-tertiary: #7FA690;
  --secondary: #A89988;
  --surface: #1E1B16;
  --border: #2F2A22;
  --text-muted: #B8B8B8;
  --gradient-primary: linear-gradient(135deg, #D98B6E 0%, #7FA690 100%);
  --gradient-surface: linear-gradient(180deg, rgba(30,27,22,0.7) 0%, rgba(30,27,22,1) 100%);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4), 0 2px 6px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.4), 0 10px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.5), 0 20px 40px rgba(0, 0, 0, 0.35);
  --shadow-xl: 0 24px 60px rgba(0, 0, 0, 0.55);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition), color var(--transition);
  padding-top: 0;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--dur-2) var(--ease-out);
}

a:hover {
  color: var(--text);
}

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(250, 246, 238, 0.72);
  border-bottom: 1px solid rgba(221, 210, 188, 0.4);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  z-index: 100;
  transition: background-color var(--transition), box-shadow var(--transition), border-color var(--transition);
}

[data-theme="dark"] .site-header {
  background: rgba(20, 17, 13, 0.6);
  border-bottom: 1px solid rgba(47, 42, 34, 0.5);
}

.site-header.scrolled {
  background: rgba(250, 246, 238, 0.96);
  box-shadow: 0 4px 20px -8px rgba(31, 24, 20, 0.18);
  border-bottom: 1px solid var(--border);
}

[data-theme="dark"] .site-header.scrolled {
  background: rgba(20, 17, 13, 0.96);
  box-shadow: 0 4px 20px -8px rgba(0, 0, 0, 0.45);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-4) var(--space-2);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
  transition: color var(--dur-2) var(--ease-out);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-logo-img {
  height: 32px;
  width: auto;
}

.nav-logo:hover {
  color: var(--accent);
}

.nav-logo:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.nav-logo-zh {
  color: var(--secondary);
  margin-left: var(--space-2);
}

.nav-links {
  display: flex;
  gap: var(--space-6);
  list-style: none;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-links a {
  color: var(--text);
  font-size: 0.95rem;
  position: relative;
  padding-bottom: 4px;
  transition: color var(--transition);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--dur-2) var(--ease-emphasis);
}

.nav-links a:hover::after,
.nav-links a:focus::after {
  width: 100%;
}

.nav-links a:hover {
  color: var(--accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text);
}

.nav-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  transition: opacity var(--dur-2) var(--ease-out);
}

.nav-overlay.active {
  display: block;
  opacity: 1;
}

.nav-icon {
  display: block;
  pointer-events: none;
}

.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text);
  padding: var(--space-2);
  display: flex;
  align-items: center;
  border-radius: var(--radius);
  transition: transform var(--dur-1) var(--ease-emphasis), color var(--transition), background-color var(--transition);
}

.theme-toggle:hover {
  transform: rotate(20deg);
  color: var(--accent);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.site-main {
  min-height: 70vh;
  padding: var(--space-8) var(--space-2);
  padding-top: calc(var(--nav-height) + var(--space-12));
}

.site-main--no-pad {
  padding-top: 0 !important;
}

.site-footer {
  position: relative;
  padding: var(--space-12) var(--space-4) var(--space-8);
  color: var(--text-muted);
  font-size: 0.9rem;
  background: linear-gradient(180deg, var(--bg) 0%, var(--surface) 100%);
  margin-top: var(--space-16);
}

.footer-wave {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 48px;
  color: var(--bg);
  transform: translateY(-100%);
  pointer-events: none;
  line-height: 0;
}

.footer-wave svg {
  display: block;
  width: 100%;
  height: 100%;
}

.footer-brand {
  font-family: var(--font-journal);
  font-size: 1.35rem !important;
  font-weight: 500 !important;
  color: var(--text) !important;
  text-transform: none !important;
  letter-spacing: 0 !important;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3) !important;
}

.footer-brand__mark {
  color: var(--accent);
  opacity: 0.9;
}

.footer-brand__zh {
  color: var(--accent);
  font-size: 0.85em;
  margin-left: 0.1em;
}

.footer-heading {
  font-size: 0.78rem !important;
  font-weight: 600 !important;
  color: var(--text) !important;
  text-transform: uppercase;
  letter-spacing: 0.18em !important;
  margin-bottom: var(--space-4) !important;
  opacity: 0.85;
}

.footer-tagline {
  font-family: var(--font-journal);
  font-style: italic;
  font-size: 0.95rem !important;
  line-height: 1.7 !important;
  color: var(--text-muted);
  max-width: 32ch;
}

.footer-contact-list .footer-icon {
  width: 16px;
  height: 16px;
  opacity: 0.65;
  flex-shrink: 0;
  transition: opacity var(--transition), color var(--transition);
}

.footer-contact-list a:hover .footer-icon {
  color: var(--accent);
  opacity: 1;
}

.footer-admin-link {
  opacity: 0 !important;
  font-size: 0 !important;
  user-select: none;
}

.footer-content {
  max-width: var(--content-max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: var(--space-12);
  margin-bottom: var(--space-8);
}

.footer-section {
  flex: 1;
  min-width: 150px;
}

.footer-section h3 {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.footer-section h3 svg {
  width: 16px;
  height: 16px;
  opacity: 0.7;
}

.footer-section p {
  font-size: 0.875rem;
  line-height: 1.6;
}

.footer-section ul {
  list-style: none;
  padding: 0;
}

.footer-section ul li {
  margin-bottom: var(--space-3);
}

.footer-section a {
  color: var(--text-muted);
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.875rem;
}

.footer-section a svg {
  width: 14px;
  height: 14px;
  opacity: 0.6;
  transition: opacity var(--transition);
}

.footer-section a:hover {
  color: var(--accent);
}

.footer-section a:hover svg {
  opacity: 1;
}

.footer-bottom {
  max-width: var(--content-max);
  margin: 0 auto;
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: 0.8rem;
}

.footer-bottom p {
  margin: 0;
  opacity: 0.7;
}

@media (max-width: 768px) {
  .footer-content {
    flex-direction: column;
    gap: var(--space-8);
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ── Hero (enhanced) ──────────────────────────────────── */

.hero {
  padding: var(--space-12) 0;
  padding-top: calc(var(--nav-height) + var(--space-12));
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 0.6s ease-out;
}

.hero--enhanced {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-10);
  align-items: center;
  min-height: calc(82vh - var(--nav-height));
  padding-top: calc(var(--nav-height) + var(--space-12));
  padding-bottom: var(--space-12);
  text-align: left;
}

.featured-works {
  max-width: var(--content-max);
  margin: var(--space-16) auto;
  padding: 0 var(--space-2);
}

.hero__content {
  animation: heroSlideIn 0.7s ease-out;
}

@keyframes heroSlideIn {
  from { opacity: 0; transform: translateX(-30px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-title {
  font-family: var(--font-journal);
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  font-weight: 600;
  margin-bottom: var(--space-3);
  line-height: 1.05;
  letter-spacing: -0.015em;
  color: var(--text);
}

.hero-title__accent {
  /* Only the trailing word is tinted; keep light-end deep enough for cream bg. */
  background: linear-gradient(120deg, #4A1510 0%, #6F2C22 55%, #7A3024 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-style: italic;
}

[data-theme="dark"] .hero-title__accent {
  background: linear-gradient(120deg, #E8A386 0%, #D98B6E 60%, #C47A5C 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  color: var(--secondary);
  font-size: 1.3rem;
  line-height: 1.5;
  margin-bottom: var(--space-2);
}

.hero__tagline {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: var(--space-8);
  letter-spacing: 0.08em;
}

.hero__cta {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.3s both;
}

.btn-outline {
  display: inline-block;
  padding: var(--space-3) var(--space-6);
  border: 2px solid var(--accent);
  color: var(--accent);
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 500;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-outline:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.btn-outline:active {
  transform: translateY(0) scale(0.98);
  box-shadow: var(--shadow-sm);
}

.btn-outline:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.btn-outline:disabled,
.btn-outline[aria-disabled='true'] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-primary:disabled,
.btn-primary[aria-disabled='true'],
button.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.hero__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
  animation: fadeInUp 0.9s ease-out 0.2s both;
}

/* Wrapper receives scroll parallax translate; inner leaf keeps sway animation. */
.hero__leaf-shift {
  will-change: transform;
}

.hero__leaf {
  width: clamp(220px, 32vw, 360px);
  height: auto;
  color: var(--accent);
  filter: drop-shadow(0 18px 24px rgba(139, 58, 46, 0.18));
  transform-origin: 50% 85%;
  animation: leafSway 7s ease-in-out infinite;
  will-change: transform;
}

[data-theme="dark"] .hero__leaf {
  filter: drop-shadow(0 18px 24px rgba(217, 139, 110, 0.2));
}

/* C2 — Hero: recent-work cover carousel + corner logo badge */
.hero-carousel {
  position: relative;
  width: min(100%, 560px);
  margin: 0 auto;
  border-radius: var(--card-radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  background: var(--surface);
}

.hero-carousel__viewport {
  position: relative;
  aspect-ratio: 16 / 10;
  width: 100%;
}

.hero-carousel__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.45s ease;
}

.hero-carousel__slide.is-active {
  opacity: 1;
  pointer-events: auto;
  z-index: 1;
}

.hero-carousel__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-carousel__chrome {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3);
  background: linear-gradient(to top, rgba(20, 20, 20, 0.55), transparent);
}

.hero-carousel__btn {
  flex-shrink: 0;
  border: none;
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  cursor: pointer;
  font-size: 1.25rem;
  line-height: 1;
  transition: background var(--transition), transform var(--dur-1) var(--ease-emphasis);
}

.hero-carousel__btn:hover {
  background: rgba(255, 255, 255, 0.32);
}

.hero-carousel__btn:active {
  transform: scale(0.95);
}

.hero-carousel__dots {
  display: flex;
  gap: 6px;
  align-items: center;
  justify-content: center;
  flex: 1;
}

.hero-carousel__dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  border: none;
  background: rgba(255, 255, 255, 0.45);
  cursor: pointer;
  padding: 0;
  transition: background var(--transition), transform var(--transition);
}

.hero-carousel__dot.is-active {
  background: #fff;
  transform: scale(1.15);
}

.hero-carousel__badge {
  position: absolute;
  bottom: 3.5rem;
  right: var(--space-4);
  z-index: 3;
  line-height: 0;
  filter: drop-shadow(0 4px 14px rgba(0, 0, 0, 0.22));
}

.hero-carousel__badge img {
  display: block;
  border-radius: 10px;
}

.hero-carousel--single .hero-carousel__badge {
  bottom: var(--space-4);
}

@media (max-width: 768px) {
  .hero-carousel {
    width: 100%;
    max-width: 420px;
  }
}

@keyframes leafSway {
  0%, 100% { transform: translateY(0) rotate(-2.5deg); }
  50%      { transform: translateY(-10px) rotate(3deg); }
}

/* Legacy orbs have been replaced by the single swaying leaf; keep the selectors
   present but hidden so any cached markup degrades gracefully. */
.hero__orb { display: none; }

/* ── Scroll reveal ────────────────────────────────────── */

.reveal-section {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal-section.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-section .stagger-child {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}
.reveal-section.visible .stagger-child:nth-child(1) { opacity: 1; transform: translateY(0); transition-delay: 0.1s; }
.reveal-section.visible .stagger-child:nth-child(2) { opacity: 1; transform: translateY(0); transition-delay: 0.2s; }
.reveal-section.visible .stagger-child:nth-child(3) { opacity: 1; transform: translateY(0); transition-delay: 0.3s; }
.reveal-section.visible .stagger-child:nth-child(4) { opacity: 1; transform: translateY(0); transition-delay: 0.4s; }
.reveal-section.visible .stagger-child:nth-child(5) { opacity: 1; transform: translateY(0); transition-delay: 0.5s; }
.reveal-section.visible .stagger-child:nth-child(6) { opacity: 1; transform: translateY(0); transition-delay: 0.6s; }

.reveal-section .slide-from-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.reveal-section .slide-from-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.reveal-section.visible .slide-from-left,
.reveal-section.visible .slide-from-right {
  opacity: 1;
  transform: translateX(0);
}

/* ── Section title ────────────────────────────────────── */

.hp-section-title {
  max-width: var(--content-max);
  margin: 0 auto var(--space-6);
  padding: 0 var(--space-2);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* ── Page hero (blog/works/about) ─────────────────────── */

.page-hero {
  padding: calc(var(--nav-height) + var(--space-16)) var(--space-4) var(--space-10);
  text-align: center;
  background: linear-gradient(135deg, var(--bg) 0%, var(--surface) 100%);
  border-bottom: 1px solid var(--border);
}

.page-hero__inner {
  max-width: var(--content-max);
  margin: 0 auto;
}

.page-hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 var(--space-3);
  animation: heroFadeIn 0.6s ease-out;
}

.page-hero__desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  animation: heroFadeIn 0.6s ease-out 0.1s both;
}

@keyframes heroFadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Blog / Works listing: shell + main column (Butterfly / yydnas.cn–style proportions) */
.works-page,
.blog-page {
  --list-shell-max: min(96vw, 1320px);
  --list-content-max: min(92vw, 900px);
}

.works-page .page-hero__inner,
.blog-page .page-hero__inner {
  max-width: var(--list-shell-max);
}

.works-page .content-container,
.blog-page .content-container {
  max-width: var(--list-shell-max);
}

/* ── About preview ────────────────────────────────────── */

.hp-about {
  max-width: var(--content-max);
  margin: var(--space-16) auto;
  padding: 0 var(--space-2);
}

.hp-about__inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-8);
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: all var(--transition);
}

.hp-about__inner:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

.hp-about__avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--accent);
  animation: avatarFloat 4s ease-in-out infinite;
  flex-shrink: 0;
}

.hp-about__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hp-about__avatar--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  color: var(--text-muted);
}

.hp-about__avatar--placeholder svg {
  width: 50px;
  height: 50px;
}

@keyframes avatarFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.hp-about__text h2 {
  font-size: 1.3rem;
  margin-bottom: var(--space-3);
}

.hp-about__text p {
  color: var(--secondary);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}

.hp-about__link {
  color: var(--accent);
  font-weight: 500;
  transition: all var(--transition);
}

.hp-about__link:hover {
  text-decoration: none;
}

.hp-about__link span {
  display: inline-block;
  transition: transform var(--transition);
}

.hp-about__link:hover span {
  transform: translateX(4px);
}

/* ── Featured post card ───────────────────────────────── */

.hp-featured-post {
  max-width: var(--content-max);
  margin: var(--space-16) auto;
  padding: 0 var(--space-2);
}

.hp-featured-post__card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  text-decoration: none;
  color: var(--text);
  transition: all var(--transition);
  position: relative;
}

.hp-featured-post__card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--card-radius);
  border: 2px solid transparent;
  transition: border-color var(--transition);
  pointer-events: none;
}

.hp-featured-post__card:hover {
  transform: translateY(var(--card-hover-lift));
  box-shadow: var(--card-shadow-hover);
  text-decoration: none;
}

.hp-featured-post__card:hover::after {
  border-color: var(--accent);
}

.hp-featured-post__img {
  overflow: hidden;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--surface);
}

.hp-featured-post__img img {
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.hp-featured-post__card:hover .hp-featured-post__img img {
  transform: scale(1.05);
}

.hp-featured-post__body {
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hp-featured-post__date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}

.hp-featured-post__title {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

.hp-featured-post__excerpt {
  color: var(--secondary);
  line-height: 1.6;
  margin-bottom: var(--space-6);
  font-size: 0.95rem;
}

.hp-featured-post__cta {
  color: var(--accent);
  font-weight: 500;
  font-size: 0.95rem;
}

.hp-featured-post__cta span {
  display: inline-block;
  transition: transform var(--transition);
}

.hp-featured-post__card:hover .hp-featured-post__cta span {
  transform: translateX(4px);
}

/* ── Stats ────────────────────────────────────────────── */

.hp-stats {
  max-width: var(--content-max);
  margin: var(--space-16) auto;
  padding: 0 var(--space-2);
}

.hp-stats__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.hp-stats__item {
  background: linear-gradient(135deg, var(--surface) 0%, var(--bg) 100%);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: var(--card-pad);
  box-shadow: var(--card-shadow);
  text-align: center;
  transition: all var(--transition);
}

.hp-stats__item:hover {
  transform: translateY(var(--card-hover-lift));
  box-shadow: var(--card-shadow-hover);
  border-color: var(--accent);
}

.hp-stats__number {
  display: block;
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: var(--space-2);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

[data-theme="dark"] .hp-stats__number {
  background: linear-gradient(135deg, #E8B8C8, #D88498);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hp-stats__label {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
}

/* ── Contact: “名片”两列（左文案 + 右链接列表），与留白主站一致 ─── */

.hp-contact {
  margin: var(--space-16) auto 0;
  padding: var(--space-12) var(--space-4) var(--space-16);
  background: var(--bg);
}

.hp-contact__card {
  max-width: var(--content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: var(--space-10);
  align-items: start;
  padding: var(--card-pad);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  background: var(--surface);
}

.hp-contact__title {
  font-family: var(--font-journal);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--text);
  letter-spacing: -0.02em;
}

.hp-contact__desc {
  color: var(--text-muted);
  line-height: 1.7;
  font-size: 1rem;
  max-width: 36ch;
}

.hp-contact__links {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--border);
}

.hp-contact__links li {
  border-bottom: 1px solid var(--border);
}

.hp-contact__links li:last-child {
  border-bottom: none;
}

.hp-contact__link {
  display: grid;
  grid-template-columns: auto 5.5rem minmax(0, 1fr);
  gap: var(--space-3);
  align-items: center;
  padding: var(--space-4) 0;
  color: var(--text);
  text-decoration: none;
  transition: color var(--transition), background-color var(--transition);
}

.hp-contact__link:hover {
  color: var(--accent);
}

.hp-contact__icon {
  color: var(--accent);
  flex-shrink: 0;
}

.hp-contact__k {
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.hp-contact__v {
  font-size: 0.95rem;
  color: var(--text);
  word-break: break-all;
}

@media (max-width: 768px) {
  .hp-contact__card {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .hp-contact__links {
    border-top: none;
    padding-top: 0;
  }

  .hp-contact__links li:first-child {
    border-top: 1px solid var(--border);
  }
}

/* ── Empty state ────────────────────────────────────── */

.empty-state {
  text-align: center;
  padding: var(--space-16) var(--space-4);
  color: var(--text-muted);
}

.empty-state__icon {
  display: block;
  margin: 0 auto var(--space-4);
  width: 80px;
  height: 80px;
  color: var(--border);
}

.empty-state__title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--text);
}

.empty-state__desc {
  font-size: 0.95rem;
  line-height: 1.6;
}

.empty-state-card {
  background: var(--surface);
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-12) var(--space-6);
  text-align: center;
  color: var(--text-muted);
}

.empty-state-card__icon {
  display: block;
  margin: 0 auto var(--space-4);
  width: 64px;
  height: 64px;
  color: var(--border);
}

.empty-state-card__text {
  font-size: 1rem;
  line-height: 1.5;
}

.content-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-2);
}

.content-container > h1:first-child {
  margin-top: 0;
  padding-top: var(--space-4);
  font-size: 2.5rem;
  font-family: var(--font-serif);
  margin-bottom: var(--space-6);
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-6);
  margin: var(--space-8) auto;
  max-width: var(--container-max);
  padding: 0 var(--space-2);
}

.work-card {
  display: block;
  background: var(--surface);
  border-radius: var(--card-radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition);
  box-shadow: var(--card-shadow);
  position: relative;
}

.work-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition);
  z-index: 0;
}

.work-card:hover {
  transform: translateY(var(--card-hover-lift));
  box-shadow: var(--card-shadow-hover);
  border-color: var(--accent);
}

.work-card:hover::before {
  opacity: 0.05;
}

/* 列表/精选封面：比例框 + 顶对齐裁切，避免「扁盒子」里竖图被拦腰截断 */
.work-card__media {
  position: relative;
  z-index: 0;
  width: 100%;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--surface);
}

.work-card__media .work-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  aspect-ratio: unset;
  min-height: 0;
  object-fit: cover;
  object-position: top center;
  display: block;
  background: transparent;
  transform-origin: top center;
  transition: transform 0.35s ease, opacity 0.3s;
}

.work-card:hover .work-card__media .work-image {
  transform: scale(1.03);
}

.work-image {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  object-position: top center;
  background: var(--surface);
  transition: transform 0.3s, opacity 0.3s;
}

.work-card:hover .work-image {
  transform: scale(1.05);
}

img[data-src] {
  opacity: 0;
}

img:not([data-src]) {
  opacity: 1;
}

.work-title {
  margin-top: var(--space-3);
  font-size: 1.1rem;
}

.work-year {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.recent-posts {
  max-width: var(--content-max);
  margin: var(--space-16) auto;
}

.posts-list {
  margin-top: var(--space-6);
}

.post-item {
  padding: var(--space-6) 0;
  border-bottom: 1px solid var(--border);
  transition: all var(--transition);
  position: relative;
}

.post-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 0;
  background: var(--gradient-primary);
  transition: height var(--transition);
  border-radius: 2px;
}

.post-item:hover {
  padding-left: var(--space-4);
}

.post-item:hover::before {
  height: 60%;
}

.post-date {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.post-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
  margin-top: var(--space-2);
  display: block;
  letter-spacing: -0.01em;
  transition: color var(--transition);
}

.post-item:hover .post-title {
  color: var(--accent);
}

.btn-primary {
  display: inline-block;
  padding: var(--space-3) var(--space-6);
  background: var(--gradient-primary);
  color: white;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  transition: all var(--transition);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 100%);
  opacity: 0;
  transition: opacity var(--transition);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-primary:active {
  transform: translateY(0) scale(0.98);
  box-shadow: var(--shadow-sm);
}

.btn-primary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* Toast notifications */
#toast-container {
  position: fixed;
  top: var(--space-4);
  right: var(--space-4);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.toast {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  min-width: 250px;
  opacity: 0;
  transform: translateX(100%);
  transition: all 0.3s ease;
}

.toast.show {
  opacity: 1;
  transform: translateX(0);
}

.toast-success { background: #6B1428; color: white; }
.toast-error { background: #D32F2F; color: white; }
.toast-warning { background: #F57C00; color: white; }
.toast-info { background: var(--accent); color: white; }

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    width: 70%;
    max-width: 300px;
    height: 100vh;
    background: var(--bg);
    border-left: 1px solid var(--border);
    flex-direction: column;
    padding: var(--space-16) var(--space-6);
    gap: var(--space-4);
    transform: translateX(100%);
    visibility: hidden;
    transition: transform var(--dur-2) var(--ease-emphasis), visibility var(--dur-2);
    box-shadow: var(--shadow-xl);
    z-index: 1000;
  }

  .nav-links.active {
    transform: translateX(0);
    visibility: visible;
  }

  .nav-toggle {
    display: flex;
    font-size: 1.5rem;
    z-index: 1001;
  }

  .nav-container { padding: var(--space-3) var(--space-4); }

  .hero { padding: var(--space-8) 0; }
  .hero--enhanced {
    grid-template-columns: 1fr;
    min-height: auto;
    text-align: center;
    padding-top: calc(var(--nav-height) + var(--space-10));
  }
  .hero__content { animation: fadeInUp 0.7s ease-out; }
  .hero__cta { justify-content: center; }
  .hero__visual { min-height: 200px; }
  .hero__leaf { width: 140px; height: 140px; }
  .hero-title { font-size: 2.2rem; }
  .hero-subtitle { font-size: 1rem; }
  .hp-about__inner {
    grid-template-columns: 1fr;
    text-align: center;
    justify-items: center;
  }
  .hp-featured-post__card { grid-template-columns: 1fr; }
  .hp-featured-post__img { aspect-ratio: 16 / 9; }
  .hp-stats__grid { grid-template-columns: 1fr; gap: var(--space-4); }
  .hp-contact__title { font-size: 1.5rem; }

  .page-hero { padding: calc(var(--nav-height) + var(--space-10)) var(--space-4) var(--space-6); }
  .page-hero h1 { font-size: 2rem; }

  .site-main { padding: var(--space-6) 0; padding-top: calc(var(--nav-height) + var(--space-6)); }
  .site-main--no-pad { padding-top: 0 !important; }

  .works-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
    margin: var(--space-6) auto;
  }

  .content-container { padding: 0 var(--space-4); }

  #toast-container { right: var(--space-2); left: var(--space-2); }
  .toast { min-width: auto; }

  .prose { font-size: 0.95rem; }
  .prose h1 { font-size: 1.75rem; }
  .prose h2 { font-size: 1.4rem; }
  .prose h3 { font-size: 1.2rem; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 1.5rem; }
  .hero-subtitle { font-size: 0.9rem; }
  .nav-logo { font-size: 1rem; }
  .works-grid { gap: var(--space-3); }
  .hp-about__avatar { width: 90px; height: 90px; }
  .hp-stats__number { font-size: 2.2rem; }
}

.contact-info {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--border);
}

.prose {
  max-width: var(--content-max);
  font-family: var(--font-journal);
  line-height: 1.75;
}

.prose h1, .prose h2, .prose h3, .prose h4 {
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-top: var(--space-8);
  margin-bottom: var(--space-4);
}

.prose h1 { font-size: 2rem; }
.prose h2 { font-size: 1.6rem; }
.prose h3 { font-size: 1.3rem; }
.prose h4 { font-size: 1.1rem; }

.prose p {
  margin-bottom: var(--space-4);
}

.prose a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  transition: all var(--transition);
}

.prose a:hover {
  text-decoration-thickness: 2px;
  color: var(--text);
}

.prose ul, .prose ol {
  margin-bottom: var(--space-4);
  padding-left: var(--space-6);
}

.prose li {
  margin-bottom: var(--space-2);
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--surface);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.prose pre {
  background: var(--surface);
  padding: var(--space-4);
  border-radius: var(--radius);
  overflow-x: auto;
  margin-bottom: var(--space-4);
  border: 1px solid var(--border);
}

.prose pre code {
  background: none;
  padding: 0;
  border: none;
}

.prose blockquote {
  border-left: 3px solid var(--accent);
  padding-left: var(--space-4);
  margin: var(--space-6) 0;
  color: var(--text-muted);
  font-style: italic;
}

.prose img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  margin: var(--space-6) 0;
}

.contact-info h2 {
  font-size: 1.2rem;
  margin-bottom: var(--space-4);
  color: var(--text);
}

.contact-info p {
  margin-bottom: var(--space-3);
  color: var(--text);
}

.contact-info strong {
  color: var(--text-muted);
  font-weight: 500;
  margin-right: var(--space-2);
}

.search-box {
  display: flex;
  gap: var(--space-2);
  margin: var(--space-8) 0;
  max-width: 600px;
}

.search-box input {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-size: 1rem;
  font-family: var(--font-sans);
}

.search-box input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 0;
}

.search-box button {
  padding: var(--space-3) var(--space-6);
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  transition: all var(--transition);
}

.search-box button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Search toggle button */
.search-toggle {
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  padding: var(--space-2);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  transition: all var(--transition);
}

.search-toggle:hover {
  background: var(--surface);
  color: var(--accent);
}

.search-toggle:focus-visible,
.nav-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Skip link */
.skip-link {
  position: fixed;
  top: 0;
  left: 50%;
  z-index: 10002;
  padding: var(--space-3) var(--space-6);
  background: var(--accent);
  color: #fff;
  font-weight: 500;
  font-size: 0.9rem;
  border-radius: 0 0 var(--radius) var(--radius);
  transform: translate(-50%, -120%);
  transition: transform var(--dur-2) var(--ease-emphasis);
}

.skip-link:focus {
  transform: translate(-50%, 0);
  outline: none;
}

.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;
}

/* Inline SVG symbol sheet (sprite) */
.icons-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

/* PJAX top progress */
.pjax-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  max-width: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
  z-index: 10001;
  pointer-events: none;
  transition: width var(--dur-2) var(--ease-out), opacity var(--dur-1) var(--ease-out);
  opacity: 0;
}

body.pjax-loading .pjax-progress {
  opacity: 1;
}

/* Brand wave (footer separator) */
.brand-wave {
  color: var(--surface);
  line-height: 0;
  margin-top: var(--space-12);
}

[data-theme="dark"] .brand-wave {
  color: var(--border);
}

.brand-wave__svg {
  display: block;
  width: 100%;
  height: clamp(28px, 4vw, 48px);
}

.brand-wave__path {
  opacity: 0.85;
}

/* Search modal */
.search-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 10vh var(--space-4) var(--space-4);
  background: rgba(0, 0, 0, 0.45);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--dur-2) var(--ease-out), visibility var(--dur-2) step-end;
}

.search-modal.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: opacity var(--dur-2) var(--ease-out), visibility var(--dur-2) step-start;
}

.search-modal-content {
  background: var(--bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  width: 90%;
  max-width: 600px;
  max-height: 70vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  transform: scale(0.96) translateY(-10px);
  opacity: 0;
  transition: transform var(--dur-2) var(--ease-emphasis), opacity var(--dur-2) var(--ease-out);
}

.search-modal.active .search-modal-content {
  transform: scale(1) translateY(0);
  opacity: 1;
}

.search-modal .search-box {
  padding: var(--space-6);
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: var(--space-3);
}

.search-modal .search-box input {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-size: 1rem;
}

.search-modal .search-box button {
  background: none;
  color: var(--text-muted);
  padding: var(--space-2);
  font-size: 1.5rem;
  line-height: 1;
}

.search-modal .search-box button:hover {
  transform: none;
  box-shadow: none;
  color: var(--text);
}

@media (max-width: 768px) {
  .search-modal {
    -webkit-backdrop-filter: blur(2px);
    backdrop-filter: blur(2px);
  }

  .site-header {
    -webkit-backdrop-filter: blur(10px) saturate(140%);
    backdrop-filter: blur(10px) saturate(140%);
  }
}

#search-results {
  overflow-y: auto;
  padding: var(--space-4);
}

.search-section {
  margin-bottom: var(--space-6);
}

.search-section h3 {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-3);
}

.search-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius);
  transition: all var(--transition);
  color: var(--text);
}

.search-item:hover {
  background: var(--surface);
  color: var(--accent);
}

.search-item-title {
  font-weight: 500;
}

.search-item-date {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.search-results-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-8);
  color: var(--text-muted);
  font-size: 0.95rem;
}

.ui-spinner {
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: uiSpinnerRotate 0.65s linear infinite;
  flex-shrink: 0;
}

@keyframes uiSpinnerRotate {
  to { transform: rotate(360deg); }
}

.search-close-btn {
  border-radius: var(--radius);
  transition: color var(--transition), background-color var(--transition);
}

.search-close-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ── Page transitions ─────────────────────────────────────── */

@view-transition { navigation: auto; }

::view-transition-old(root) {
  animation: vtFadeOut 0.2s ease-in forwards;
}

::view-transition-new(root) {
  animation: vtFadeIn 0.3s ease-out;
}

@keyframes vtFadeOut {
  to { opacity: 0; transform: translateY(-8px); }
}

@keyframes vtFadeIn {
  from { opacity: 0; transform: translateY(8px); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

body {
  animation: fadeIn 0.25s ease-out;
}

body.page-leaving {
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.18s ease-in, transform 0.18s ease-in;
  pointer-events: none;
}

/* PJAX content swap transitions */
.site-main,
.admin-main {
  will-change: opacity, transform;
}

.site-main.pjax-out,
.admin-main.pjax-out {
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.18s ease-in, transform 0.18s ease-in;
  pointer-events: none;
}

.site-main.pjax-in,
.admin-main.pjax-in {
  animation: pjaxFadeIn 0.22s ease-out;
}

@keyframes pjaxFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

.slide-up {
  animation: slideUp 0.6s ease-out;
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Breadcrumb navigation */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--text-muted);
  transition: color var(--transition);
}

.breadcrumb a:hover {
  color: var(--accent);
}

.breadcrumb-separator {
  opacity: 0.5;
}

.breadcrumb-current {
  color: var(--text);
  font-weight: 500;
}

/* Back to top button */
#back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition);
  z-index: 90;
}

#back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

#back-to-top:hover {
  background: var(--accent-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

#back-to-top:active {
  transform: translateY(-2px);
}

@media (max-width: 768px) {
  #back-to-top {
    bottom: 1rem;
    right: 1rem;
    width: 44px;
    height: 44px;
    font-size: 1.25rem;
  }
}

/* Lazy load image states */
img[data-src] {
  background: var(--surface);
  min-height: 200px;
}

img.loading {
  opacity: 0.6;
  animation: pulse 1.5s ease-in-out infinite;
}

img.loaded {
  animation: fadeIn 0.4s ease-out;
}

img.error {
  background: var(--surface);
  position: relative;
}

@keyframes pulse {
  0%, 100% {
    opacity: 0.6;
  }
  50% {
    opacity: 0.3;
  }
}

#main {
  scroll-margin-top: 5.5rem;
}

#main:focus {
  outline: none;
}

.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;
}

/* ── About page (full) ─────────────────────────────────── */

.about-page {
  max-width: min(92vw, 720px);
  margin: 0 auto;
  padding-bottom: var(--space-16);
}

.about-hero {
  text-align: center;
  padding: var(--space-10) 0 var(--space-8);
}

.about-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 2.75rem);
  margin: 0 0 var(--space-3);
}

.about-hero__tagline {
  margin: 0;
  font-size: 1.1rem;
  color: var(--secondary);
  line-height: 1.6;
}

.about-section-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  margin: 0 0 var(--space-5);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

.about-profile {
  margin-bottom: var(--space-10);
}

.about-profile__inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-8);
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.about-profile__inner:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}

.about-profile__avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--accent);
  flex-shrink: 0;
  animation: avatarFloat 4s ease-in-out infinite;
}

.about-profile__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-profile__avatar--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  color: var(--text-muted);
  animation: avatarFloat 4s ease-in-out infinite;
}

.about-profile__avatar--placeholder svg {
  width: 48px;
  height: 48px;
}

.about-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
}

.about-stats li {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.about-stats__num {
  font-size: 1.75rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  line-height: 1.1;
}

.about-stats__lbl {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.about-body {
  margin-bottom: var(--space-10);
}

.about-body.prose {
  text-align: left;
}

.about-contact {
  margin-bottom: var(--space-12);
}

.about-contact__grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.about-contact__item {
  margin: 0;
  font-size: 1rem;
}

.about-contact__k {
  display: inline-block;
  min-width: 3.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.about-contact__qq {
  font-variant-numeric: tabular-nums;
}

.about-contact__empty {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.65;
}

.about-social {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.about-social__link {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--accent);
  font-weight: 500;
  text-decoration: none;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.about-social__link:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.about-explore__cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

.about-explore__subtitle {
  margin: 0 0 var(--space-4);
  font-size: 1rem;
  font-weight: 600;
  color: var(--secondary);
}

.about-explore__list {
  list-style: none;
  margin: 0 0 var(--space-4);
  padding: 0;
}

.about-explore__list li {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border);
}

.about-explore__list li:first-child {
  padding-top: 0;
}

.about-explore__list a {
  color: var(--text);
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition);
}

.about-explore__list a:hover {
  color: var(--accent);
}

.about-explore__list time {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.about-explore__desc {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.about-explore__more {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  color: var(--accent);
  font-weight: 500;
  text-decoration: none;
  font-size: 0.95rem;
}

.about-explore__more:hover span {
  transform: translateX(3px);
}

.about-explore__more span {
  display: inline-block;
  transition: transform var(--transition);
}

.about-explore__empty {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.footer-qq {
  color: var(--text-muted);
  font-size: 0.95rem;
}

@media (max-width: 640px) {
  .about-profile__inner {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .about-stats {
    justify-content: center;
  }

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

  .about-social {
    justify-content: center;
  }
}

/* ── List-page intro (Blog / Works / About header band) ───────────── */

.page-intro {
  padding: var(--space-8) 0 var(--space-6);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-10);
}

.page-intro__eyebrow {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 var(--space-3);
}

.page-intro__title {
  font-family: var(--font-journal);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 600;
  margin: 0 0 var(--space-3);
  line-height: 1.1;
}

.page-intro__desc {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin: 0;
  max-width: 52ch;
}

/* ── Dedicated /search page box (distinct from header modal) ──────── */

.search-box--page {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  margin: var(--space-8) 0 var(--space-6);
  padding: var(--space-3) var(--space-4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.search-box--page:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(139, 58, 46, 0.12);
}

.search-box--page input {
  flex: 1;
  background: transparent;
  border: 0;
  outline: 0;
  font: inherit;
  color: var(--text);
  padding: var(--space-2) 0;
}

.search-box--page input::placeholder { color: var(--text-muted); }

.search-box--page .btn-primary {
  flex: 0 0 auto;
  padding: var(--space-2) var(--space-5);
}

#search-page-results {
  margin-top: var(--space-6);
  min-height: 4rem;
}

#search-page-results:empty::after {
  content: "输入关键词开始搜索。";
  display: block;
  color: var(--text-muted);
  font-style: italic;
  padding: var(--space-6) 0;
}

/* ── Post shell + TOC sidebar ─────────────────────────────────────── */

.post-shell {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.post-shell .post-detail {
  width: 100%;
  order: 2;
}

.post-toc {
  order: 1;
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--space-4) var(--space-5);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.92rem;
}

.post-toc__details { margin: 0; }

.post-toc__summary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
  cursor: pointer;
  color: var(--text);
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: var(--space-1) 0;
}

.post-toc__summary::-webkit-details-marker { display: none; }
.post-toc__summary::marker { content: ''; }

.post-toc__icon {
  flex: 0 0 auto;
  color: var(--accent);
}

.post-toc__list {
  list-style: none;
  margin: var(--space-3) 0 0;
  padding: 0;
  counter-reset: none;
}

.post-toc__item {
  line-height: 1.5;
  padding: var(--space-1) 0;
}

.post-toc__item--h3 {
  padding-left: var(--space-4);
}

.post-toc__link {
  display: block;
  color: var(--text-muted);
  text-decoration: none;
  padding: 2px var(--space-2);
  border-left: 2px solid transparent;
  transition: color 140ms ease, border-color 140ms ease, background 140ms ease;
  line-height: 1.45;
}

.post-toc__link:hover {
  color: var(--accent);
  background: rgba(139, 58, 46, 0.06);
}

.post-toc__link.is-active {
  color: var(--accent);
  border-left-color: var(--accent);
  font-weight: 500;
}

@media (min-width: 1200px) {
  .post-shell--has-toc {
    flex-direction: row;
    justify-content: center;
    align-items: flex-start;
    gap: var(--space-8);
  }

  .post-shell--has-toc .post-detail {
    order: 0;
    max-width: var(--content-max);
    flex: 1 1 auto;
    min-width: 0;
  }

  .post-shell--has-toc .post-toc {
    order: 1;
    flex: 0 0 240px;
    width: 240px;
    max-width: 240px;
    margin: 0;
    padding: var(--space-5) var(--space-4);
    position: sticky;
    top: calc(var(--nav-height) + 1.5rem);
    max-height: calc(100vh - var(--nav-height) - 3rem);
    overflow-y: auto;
  }
}

/* ── Prose aesthetics: h2 leaf marker + first-paragraph drop cap ──── */

.prose h2 {
  position: relative;
}

.prose h2::before {
  content: '';
  position: absolute;
  left: -1.25rem;
  top: 0.55em;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50% 0 50% 0;
  background: var(--accent);
  opacity: 0.7;
  transform: rotate(-18deg);
}

@media (max-width: 720px) {
  .prose h2::before { display: none; }
}

.prose > p:first-of-type::first-letter {
  font-family: var(--font-journal);
  font-size: 3.2em;
  font-weight: 600;
  line-height: 0.95;
  float: left;
  margin: 0.1em 0.12em 0 0;
  color: var(--accent);
  padding: 0.05em 0.08em 0 0;
}

/* Drop cap looks weird on very narrow screens or when the first paragraph
   starts with a quotation mark / emoji — opt out on small viewports. */
@media (max-width: 520px) {
  .prose > p:first-of-type::first-letter {
    font-size: 2.4em;
  }
}

/* ── Reading progress bar (post detail) ───────────────────────────── */

.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 1100;                     /* above site-header (typically 100) */
  background: transparent;
  pointer-events: none;
}

.reading-progress__bar {
  display: block;
  width: 0;
  height: 100%;
  background: var(--gradient-primary, linear-gradient(90deg, var(--accent), var(--accent-secondary)));
  box-shadow: 0 0 6px rgba(139, 58, 46, 0.35);
  transition: width 80ms linear;
  will-change: width;
}

.post-reading-time {
  font-variant-numeric: tabular-nums;
}

@media (prefers-reduced-motion: reduce) {
  .reading-progress__bar {
    transition: none;
  }
}

/* ── Pagination "current page" indicator ──────────────────────────── */

.pagination__current {
  display: inline-flex;
  align-items: center;
  padding: 0 var(--space-3);
  color: var(--text-muted);
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.9rem;
}

@media (prefers-reduced-motion: reduce) {
  /* Safety net: collapse every animation/transition to near-instant.
     Specific overrides below still win where stronger behaviour is needed. */
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-delay: 0ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    transition-delay: 0ms !important;
    scroll-behavior: auto !important;
  }

  /* Cancel hover/focus transform pops that feel jittery without motion. */
  .btn-primary:hover,
  .btn-outline:hover,
  .work-card:hover,
  .blog-item:hover,
  .hp-post-card:hover,
  .footer-contact-list a:hover,
  #back-to-top:hover {
    transform: none !important;
  }

  .hero__leaf,
  .hero__orb {
    animation: none !important;
  }

  .hero,
  .hero__content,
  .hero__cta,
  .hero__visual {
    animation: none !important;
  }

  .reveal-section,
  .reveal-section .stagger-child,
  .reveal-section .slide-from-left,
  .reveal-section .slide-from-right {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .animate-on-scroll {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  body {
    animation: none !important;
  }

  body.page-leaving,
  .site-main.pjax-out,
  .site-main.pjax-in,
  .admin-main.pjax-out,
  .admin-main.pjax-in {
    transition: none !important;
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }

  .theme-toggle:hover {
    transform: none;
  }

  .search-modal,
  .search-modal-content {
    transition: opacity var(--dur-1) var(--ease-out), visibility var(--dur-1) !important;
  }

  .search-modal-content {
    transform: none !important;
  }

  .ui-spinner {
    animation: none;
    border-color: var(--accent);
    opacity: 0.7;
  }

  img.loading {
    animation: none;
  }

  ::view-transition-old(root),
  ::view-transition-new(root) {
    animation-duration: 0.01ms !important;
  }

  .pjax-progress {
    transition: none;
  }

  .about-profile__avatar,
  .about-profile__avatar--placeholder {
    animation: none !important;
  }
}

/* ────────────────────────────────────────────────────────────
 * Batch 3 — hero EN tagline, hp-about stat strip, card leaf
 * watermark on hover, full-page error shell (404 / 500).
 * ──────────────────────────────────────────────────────────── */

/* C3 — English tagline sitting under the Chinese one.
   Serif + italic + muted to keep it quiet but international. */
.hero__tagline-en {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  margin: calc(var(--space-3) * -1) 0 var(--space-8);
  animation: fadeInUp 0.8s ease-out 0.25s both;
}

/* C1 — hp-about mini data strip. Inline description-list so it reads
   "文章 12 篇 · 作品 8 件" without shouting. */
.hp-about__stats {
  display: inline-flex;
  align-items: baseline;
  gap: var(--space-4);
  margin: var(--space-2) 0 var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.9rem;
}

.hp-about__stat {
  display: inline-flex;
  align-items: baseline;
  gap: var(--space-2);
}

.hp-about__stat dt {
  color: var(--text-muted);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hp-about__stat dd {
  margin: 0;
  color: var(--text);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.hp-about__stat-num {
  color: var(--accent);
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  margin-right: 2px;
}

.hp-about__stat-sep {
  width: 1px;
  height: 1rem;
  background: var(--border);
}

@media (max-width: 768px) {
  .hp-about__stats {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
  }
}

/* D2 — Leaf watermark on card hover.
   Uses a data-uri SVG (leaf outline) as background in ::after,
   positioned top-right, fades in on hover. Doesn't trigger layout
   reflow; respects prefers-reduced-motion via universal override. */
/* Leaf watermark: not on .hp-featured-post__card — it already uses ::after for focus ring. */
.work-card,
.blog-item {
  position: relative;
}

.work-card::after,
.blog-item::after {
  content: '';
  position: absolute;
  top: 12px;
  right: 14px;
  width: 42px;
  height: 42px;
  pointer-events: none;
  opacity: 0;
  transform: translateY(-4px) rotate(-12deg);
  transition: opacity 0.45s ease, transform 0.45s ease;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 40 40' fill='none' stroke='%238B3A2E' stroke-width='1.4'><path d='M20 4 C12 10, 8 18, 10 26 C12 32, 16 36, 20 36 C24 36, 28 32, 30 26 C32 18, 28 10, 20 4 Z' opacity='0.7'/><path d='M20 6 C20 14, 20 28, 20 36' stroke-width='1' opacity='0.5'/></svg>");
  background-repeat: no-repeat;
  background-size: contain;
  z-index: 3;
}

.work-card:hover::after,
.blog-item:hover::after {
  opacity: 0.55;
  transform: translateY(0) rotate(0deg);
}

/* Dark theme swaps leaf stroke to the warmer secondary accent so it
   doesn't disappear into the deep surface. */
[data-theme="dark"] .work-card::after,
[data-theme="dark"] .blog-item::after {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 40 40' fill='none' stroke='%23C4906E' stroke-width='1.4'><path d='M20 4 C12 10, 8 18, 10 26 C12 32, 16 36, 20 36 C24 36, 28 32, 30 26 C32 18, 28 10, 20 4 Z' opacity='0.7'/><path d='M20 6 C20 14, 20 28, 20 36' stroke-width='1' opacity='0.5'/></svg>");
}

/* E1 — Error shell (404 / 500). Two-column visual+body layout on desktop,
   stacks vertically on mobile. Giant leaf + error code overlay on the left,
   eyebrow + title + copy + actions on the right. */
.error-body {
  min-height: 100vh;
}

.error-shell {
  max-width: min(96%, 1080px);
  margin: calc(var(--nav-height) + var(--space-10)) auto var(--space-16);
  padding: var(--space-8) var(--space-4);
  display: grid;
  grid-template-columns: minmax(0, 360px) minmax(0, 1fr);
  gap: var(--space-12);
  align-items: center;
}

.error-shell__visual {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 3 / 4;
  max-width: 360px;
  width: 100%;
  color: var(--accent);
}

.error-shell__leaf {
  width: 100%;
  height: auto;
  animation: errorLeafDrift 8s ease-in-out infinite;
}

@keyframes errorLeafDrift {
  0%, 100% { transform: rotate(-2deg) translateY(0); }
  50% { transform: rotate(2deg) translateY(-6px); }
}

.error-shell__code {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-serif);
  font-size: clamp(5rem, 12vw, 8rem);
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.04em;
  text-shadow: 0 2px 12px rgba(139, 58, 46, 0.15);
  mix-blend-mode: multiply;
}

[data-theme="dark"] .error-shell__code {
  mix-blend-mode: screen;
  color: var(--accent-secondary);
  text-shadow: 0 2px 16px rgba(196, 144, 110, 0.25);
}

.error-shell__body {
  max-width: 52ch;
}

.error-shell__eyebrow {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  margin-bottom: var(--space-3);
}

.error-shell__title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  font-weight: 600;
  line-height: 1.25;
  margin-bottom: var(--space-4);
  color: var(--text);
}

.error-shell__copy {
  color: var(--text-muted);
  font-size: 1.02rem;
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

.error-shell__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.error-shell__hints {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px dashed var(--border);
  list-style: none;
  margin: 0;
  font-size: 0.92rem;
}

.error-shell__hints a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}

.error-shell__hints a:hover {
  color: var(--accent);
}

@media (max-width: 768px) {
  .error-shell {
    grid-template-columns: 1fr;
    gap: var(--space-6);
    text-align: center;
  }
  .error-shell__visual {
    max-width: 240px;
    margin: 0 auto;
  }
  .error-shell__body {
    margin: 0 auto;
  }
  .error-shell__actions,
  .error-shell__hints {
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .error-shell__leaf {
    animation: none !important;
  }
  .work-card::after,
  .blog-item::after {
    transition: opacity 0.001ms !important;
    transform: none !important;
  }
  .work-card:hover::after,
  .blog-item:hover::after {
    transform: none !important;
  }
}

/* ────────────────────────────────────────────────────────────
 * Batch 4 — clickable leaf tag chips (E3), tag filter banner,
 * works filter count badges (B2), visited-link dim (F3),
 * homepage hero parallax safeguards (D3).
 * ──────────────────────────────────────────────────────────── */

/* E3 — Leaf-shaped tag chips used on post detail and blog list.
   Asymmetric border-radius (pointed TL+BR, rounded TR+BL) nods at a
   leaf silhouette without resorting to background SVG. */
.tag--chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  background: color-mix(in srgb, var(--accent) 7%, var(--bg));
  border: 1px solid color-mix(in srgb, var(--accent) 28%, var(--border));
  border-radius: 2px 14px 2px 14px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 500;
  line-height: 1.3;
  text-decoration: none;
  transition: background var(--transition), border-color var(--transition), transform var(--transition), color var(--transition);
}

.tag--chip:hover,
.tag--chip:focus-visible {
  background: color-mix(in srgb, var(--accent) 16%, var(--bg));
  border-color: var(--accent);
  transform: translateY(-1px);
  text-decoration: none;
  color: var(--accent);
}

.tag--active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

.tag--active:hover,
.tag--active:focus-visible {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--bg);
}

/* E3 — Active tag banner on blog list page. Pill on the top-left of
   the list tells the visitor they're in a filtered view with a clear
   escape link. */
.blog-filter-banner {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-4);
  margin-bottom: var(--space-6);
  background: color-mix(in srgb, var(--accent) 8%, var(--bg));
  border: 1px solid color-mix(in srgb, var(--accent) 22%, var(--border));
  border-radius: 999px;
  font-size: 0.88rem;
  color: var(--text);
}

.blog-filter-banner__label {
  color: var(--text-muted);
}

.blog-filter-banner__chip {
  color: var(--accent);
  font-weight: 600;
}

.blog-filter-banner__clear {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}

.blog-filter-banner__clear:hover,
.blog-filter-banner__clear:focus-visible {
  color: var(--accent);
  text-decoration: none;
}

/* B2 — Tag filter count badges on /works. A small rounded pill attached
   to each button shows how many works carry that tag. */
.tag-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.tag-btn__count {
  display: inline-flex;
  justify-content: center;
  min-width: 1.6em;
  padding: 0 6px;
  background: color-mix(in srgb, currentColor 14%, transparent);
  color: inherit;
  border-radius: 999px;
  font-size: 0.72em;
  font-variant-numeric: tabular-nums;
  line-height: 1.5;
}

.tag-btn.active .tag-btn__count {
  background: color-mix(in srgb, var(--bg) 28%, transparent);
  color: var(--bg);
}

/* F3 — Already-visited entry links on list surfaces dim slightly.
   Browsers sandbox :visited heavily — only the color family is free to
   change — and that subtle muting is all we want anyway. */
.blog-list .blog-item h2 a:visited,
.posts-list .post-item .post-title:visited,
.recent-posts .post-item a:visited,
.hp-featured-post__card:visited .hp-featured-post__title,
.work-card:visited .work-title {
  color: var(--text-muted);
}