:root {
  --sun: #f7a531;
  --sun-deep: #e08a3c;
  --sun-dark: #c96b1f;
  --cream: #fff6e5;
  --cream-2: #fff3dd;
  --bg: #fffaf1;
  --bg-soft: #fff4e0;
  --surface: #ffffff;
  --surface-glass: rgba(255, 255, 255, 0.65);
  --surface-glass-strong: rgba(255, 255, 255, 0.82);
  --text: #2f2417;
  --text-soft: #6b5a45;
  --text-mute: #94826b;
  --border: rgba(201, 107, 31, 0.18);
  --border-strong: rgba(201, 107, 31, 0.32);
  --shadow-sm: 0 2px 8px rgba(201, 107, 31, 0.08);
  --shadow-md: 0 10px 30px rgba(201, 107, 31, 0.12);
  --shadow-lg: 0 22px 60px rgba(201, 107, 31, 0.18);
  --radius-sm: 10px;
  --radius: 18px;
  --radius-lg: 26px;
  --radius-pill: 999px;
  --grad-banner: linear-gradient(135deg, #ffe9c2 0%, #ffd79a 38%, #f7a531 100%);
  --grad-banner-2: linear-gradient(120deg, #fff3dd 0%, #ffdca8 55%, #f2a04a 100%);
  --grad-accent: linear-gradient(135deg, #f7a531 0%, #e08a3c 100%);
  --grad-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.7), rgba(255, 240, 214, 0.35));
  --header-h: 68px;
  --maxw: 1180px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

html[data-theme="dark"] {
  --sun: #ffb84d;
  --sun-deep: #f2a04a;
  --sun-dark: #e08a3c;
  --cream: #2a2118;
  --cream-2: #241c14;
  --bg: #171310;
  --bg-soft: #1e1913;
  --surface: #241d16;
  --surface-glass: rgba(42, 33, 24, 0.62);
  --surface-glass-strong: rgba(46, 37, 27, 0.86);
  --text: #f6ecdd;
  --text-soft: #cbb99f;
  --text-mute: #9c8a72;
  --border: rgba(255, 184, 77, 0.18);
  --border-strong: rgba(255, 184, 77, 0.34);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 22px 60px rgba(0, 0, 0, 0.55);
  --grad-banner: linear-gradient(135deg, #3a2a17 0%, #5c3d1a 40%, #a86a22 100%);
  --grad-banner-2: linear-gradient(120deg, #2c2116 0%, #4a3318 55%, #8a5a1f 100%);
  --grad-accent: linear-gradient(135deg, #ffb84d 0%, #e08a3c 100%);
  --grad-glass: linear-gradient(135deg, rgba(70, 55, 38, 0.55), rgba(40, 31, 22, 0.35));
}

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

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 12% 8%, rgba(247, 165, 49, 0.14), transparent 42%),
    radial-gradient(circle at 88% 0%, rgba(224, 138, 60, 0.12), transparent 40%),
    radial-gradient(circle at 50% 100%, rgba(255, 214, 154, 0.16), transparent 55%);
  background-attachment: fixed;
  transition: background-color 0.4s var(--ease), color 0.4s var(--ease);
  overflow-x: hidden;
}

html[data-theme="dark"] body {
  background-image:
    radial-gradient(circle at 12% 8%, rgba(255, 184, 77, 0.1), transparent 42%),
    radial-gradient(circle at 88% 0%, rgba(224, 138, 60, 0.08), transparent 40%),
    radial-gradient(circle at 50% 100%, rgba(120, 80, 30, 0.18), transparent 55%);
}

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

a {
  color: var(--sun-dark);
  text-decoration: none;
  transition: color 0.25s var(--ease), opacity 0.25s var(--ease);
}

html[data-theme="dark"] a {
  color: var(--sun);
}

a:hover {
  color: var(--sun-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

h1, h2, h3, h4 {
  color: var(--text);
  line-height: 1.35;
  margin: 0 0 0.6em;
  letter-spacing: 0.01em;
  font-weight: 700;
}

h1 { font-size: clamp(1.6rem, 3.6vw, 2.5rem); }
h2 { font-size: clamp(1.35rem, 2.6vw, 1.9rem); }
h3 { font-size: clamp(1.1rem, 1.8vw, 1.3rem); }

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

ul, ol {
  margin: 0 0 1em;
  padding-left: 1.25em;
  color: var(--text-soft);
}

li { margin-bottom: 0.35em; }

time {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--text-mute);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 2px 12px;
  margin-bottom: 0.6em;
}

blockquote {
  margin: 1.2em 0;
  padding: 1em 1.3em;
  border-left: 4px solid var(--sun);
  background: var(--grad-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 0 var(--radius) var(--radius) 0;
  box-shadow: var(--shadow-sm);
}

blockquote p {
  margin: 0;
  color: var(--text);
  font-style: italic;
}

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

:focus-visible {
  outline: 3px solid var(--sun);
  outline-offset: 2px;
  border-radius: 6px;
}

::selection {
  background: rgba(247, 165, 49, 0.35);
  color: var(--text);
}

/* ============ Header ============ */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface-glass-strong);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 24px rgba(201, 107, 31, 0.08);
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.header-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
  transition: transform 0.3s var(--ease);
}

.brand:hover {
  transform: translateY(-1px) scale(1.02);
  text-decoration: none;
}

.brand svg {
  width: 38px;
  height: 38px;
  filter: drop-shadow(0 4px 10px rgba(247, 165, 49, 0.45));
  transition: transform 0.6s var(--ease);
}

.brand:hover svg {
  transform: rotate(18deg);
}

.brand-name {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  white-space: nowrap;
}

#main-nav {
  flex: 1 1 auto;
  min-width: 0;
}

#main-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 2px 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

#main-nav li { margin: 0; }

#main-nav a {
  display: inline-block;
  padding: 6px 10px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-soft);
  border-radius: var(--radius-pill);
  white-space: nowrap;
  transition: color 0.25s var(--ease), background 0.25s var(--ease), transform 0.25s var(--ease);
}

#main-nav a:hover {
  color: var(--sun-dark);
  background: rgba(247, 165, 49, 0.14);
  transform: translateY(-1px);
  text-decoration: none;
}

html[data-theme="dark"] #main-nav a:hover {
  color: var(--sun);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.header-actions form {
  display: flex;
  align-items: center;
  gap: 6px;
}

.header-actions input[type="search"] {
  width: 168px;
  padding: 8px 14px;
  font-size: 0.86rem;
  font-family: inherit;
  color: var(--text);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  transition: width 0.35s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease);
}

.header-actions input[type="search"]::placeholder {
  color: var(--text-mute);
}

.header-actions input[type="search"]:focus {
  width: 220px;
  outline: none;
  border-color: var(--sun);
  box-shadow: 0 0 0 4px rgba(247, 165, 49, 0.18);
  background: var(--surface);
}

.header-actions button {
  font-family: inherit;
  font-size: 0.84rem;
  font-weight: 600;
  color: #fff;
  background: var(--grad-accent);
  border: none;
  border-radius: var(--radius-pill);
  padding: 8px 16px;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(247, 165, 49, 0.35);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), filter 0.25s var(--ease);
}

.header-actions button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(247, 165, 49, 0.45);
  filter: brightness(1.05);
}

.header-actions button:active {
  transform: translateY(0);
}

#theme-toggle {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-sm);
}

#theme-toggle:hover {
  background: var(--bg-soft);
  box-shadow: var(--shadow-md);
}

#menu-toggle {
  display: none;
}

/* ============ Main / layout ============ */
main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px 40px;
}

main > section,
main > nav {
  margin-bottom: 34px;
}

main > section {
  background: var(--surface-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(22px, 3.4vw, 42px);
  box-shadow: var(--shadow-md);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease), background 0.4s var(--ease);
}

main > section:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-lg);
}

main > section > h2 {
  position: relative;
  padding-bottom: 0.55em;
  margin-bottom: 1em;
}

main > section > h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 64px;
  height: 4px;
  border-radius: 4px;
  background: var(--grad-accent);
  box-shadow: 0 2px 10px rgba(247, 165, 49, 0.5);
}

main > section > h3 {
  margin-top: 1.6em;
  padding-left: 14px;
  border-left: 4px solid var(--sun);
}

/* ============ Breadcrumb ============ */
.breadcrumb {
  padding: 16px 4px 0;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.86rem;
  color: var(--text-mute);
}

.breadcrumb li {
  margin: 0;
  display: inline-flex;
  align-items: center;
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--text-mute);
  opacity: 0.6;
}

.breadcrumb a {
  color: var(--text-soft);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  transition: background 0.25s var(--ease), color 0.25s var(--ease);
}

.breadcrumb a:hover {
  background: rgba(247, 165, 49, 0.16);
  color: var(--sun-dark);
  text-decoration: none;
}

html[data-theme="dark"] .breadcrumb a:hover { color: var(--sun); }

/* ============ Hero ============ */
#hero {
  position: relative;
  margin-top: 18px;
  padding: clamp(28px, 4.5vw, 56px);
  border-radius: var(--radius-lg);
  background: var(--grad-banner);
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  isolation: isolate;
}

#hero::before {
  content: "";
  position: absolute;
  inset: -40% -10% auto auto;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.6), transparent 65%);
  border-radius: 50%;
  z-index: -1;
  animation: floatGlow 12s ease-in-out infinite;
}

#hero::after {
  content: "";
  position: absolute;
  inset: auto auto -30% -10%;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.4), transparent 65%);
  border-radius: 50%;
  z-index: -1;
  animation: floatGlow 16s ease-in-out infinite reverse;
}

@keyframes floatGlow {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-20px, 18px) scale(1.08); }
}

#hero-title {
  color: #3a2a12;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.4);
}

html[data-theme="dark"] #hero-title { color: #ffe9c2; text-shadow: none; }

.hero-lead {
  max-width: 820px;
  font-size: clamp(0.95rem, 1.4vw, 1.06rem);
  color: #5a4222;
}

html[data-theme="dark"] .hero-lead { color: #e6d3b4; }

/* Hero carousel */
.hero-carousel {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 26px 0;
}

.hero-carousel .slide {
  margin: 0;
  background: var(--surface-glass-strong);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.45s var(--ease), box-shadow 0.45s var(--ease);
}

.hero-carousel .slide:hover {
  transform: translateY(-6px) scale(1.015);
  box-shadow: var(--shadow-lg);
}

.hero-carousel .slide svg {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s var(--ease);
}

.hero-carousel .slide:hover svg {
  transform: scale(1.05);
}

.hero-carousel figcaption {
  padding: 12px 16px 16px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.55;
}

/* Hero stats */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 22px;
}

.hero-stats .stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: 16px 10px;
  text-align: center;
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), background 0.35s var(--ease);
}

html[data-theme="dark"] .hero-stats .stat {
  background: rgba(42, 33, 24, 0.55);
  border-color: rgba(255, 184, 77, 0.25);
}

.hero-stats .stat:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.75);
}

html[data-theme="dark"] .hero-stats .stat:hover {
  background: rgba(52, 41, 29, 0.75);
}

.hero-stats .num {
  font-size: clamp(1.3rem, 2.6vw, 1.85rem);
  font-weight: 800;
  line-height: 1.2;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-variant-numeric: tabular-nums;
}

.hero-stats .stat > span:last-child {
  font-size: 0.8rem;
  color: #6b5228;
  font-weight: 500;
}

html[data-theme="dark"] .hero-stats .stat > span:last-child { color: var(--text-soft); }

/* ============ Anchor nav ============ */
.anchor-nav {
  position: sticky;
  top: calc(var(--header-h) + 8px);
  z-index: 50;
  padding: 10px 12px;
  background: var(--surface-glass-strong);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-sm);
  overflow-x: auto;
  scrollbar-width: none;
}

.anchor-nav::-webkit-scrollbar { display: none; }

.anchor-nav ul {
  display: flex;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
  width: max-content;
  min-width: 100%;
  justify-content: center;
}

.anchor-nav li { margin: 0; }

.anchor-nav a {
  display: inline-block;
  padding: 6px 14px;
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--text-soft);
  border-radius: var(--radius-pill);
  white-space: nowrap;
  transition: color 0.25s var(--ease), background 0.25s var(--ease), transform 0.25s var(--ease);
}

.anchor-nav a:hover {
  color: #fff;
  background: var(--grad-accent);
  transform: translateY(-1px);
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(247, 165, 49, 0.35);
}

/* ============ Articles / news ============ */
#news article,
#articles article {
  position: relative;
  margin-bottom: 16px;
  padding: 20px 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s var(--ease);
  overflow: hidden;
}

#news article::before,
#articles article::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--grad-accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.4s var(--ease);
}

#news article:hover,
#articles article:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

#news article:hover::before,
#articles article:hover::before {
  transform: scaleY(1);
}

#news article h3,
#articles article h3 {
  margin-top: 0;
  margin-bottom: 0.4em;
  font-size: 1.08rem;
}

#articles article a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 0.88rem;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  background: rgba(247, 165, 49, 0.14);
  color: var(--sun-dark);
  transition: background 0.25s var(--ease), color 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

html[data-theme="dark"] #articles article a { color: var(--sun); }

#articles article a::after {
  content: "→";
  transition: transform 0.25s var(--ease);
}

#articles article a:hover {
  background: var(--grad-accent);
  color: #fff;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(247, 165, 49, 0.4);
}

#articles article a:hover::after {
  transform: translateX(3px);
}

/* ============ FAQ ============ */
#faq details {
  margin-bottom: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.3s var(--ease), border-color 0.3s var(--ease), transform 0.3s var(--ease);
  overflow: hidden;
}

#faq details:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

#faq details[open] {
  border-color: var(--sun);
  box-shadow: var(--shadow-md);
}

#faq summary {
  position: relative;
  padding: 16px 52px 16px 20px;
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
  user-select: none;
}

#faq summary::-webkit-details-marker { display: none; }

#faq summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  background: var(--grad-accent);
  border-radius: 50%;
  transition: transform 0.35s var(--ease), background 0.35s var(--ease);
}

#faq details[open] summary::after {
  transform: translateY(-50%) rotate(135deg);
}

#faq summary:hover {
  background: rgba(247, 165, 49, 0.08);
  color: var(--sun-dark);
}

html[data-theme="dark"] #faq summary:hover { color: var(--sun); }

#faq details > p {
  padding: 0 20px 18px;
  margin: 0;
  animation: fadeSlide 0.4s var(--ease);
}

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

/* ============ Contact / sitemap / links ============ */
#contact p {
  line-height: 2;
}

#sitemap ul,
#links ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 0;
}

#sitemap li,
#links li {
  margin: 0;
}

#sitemap a,
#links a {
  display: inline-block;
  padding: 8px 18px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-soft);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), color 0.25s var(--ease), box-shadow 0.25s var(--ease), border-color 0.25s var(--ease);
}

#sitemap a:hover,
#links a:hover {
  color: #fff;
  background: var(--grad-accent);
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(247, 165, 49, 0.4);
  text-decoration: none;
}

/* ============ Footer ============ */
footer {
  margin-top: 20px;
  padding: 44px 20px 32px;
  background: linear-gradient(180deg, transparent 0%, rgba(247, 165, 49, 0.08) 100%);
  border-top: 1px solid var(--border);
}

html[data-theme="dark"] footer {
  background: linear-gradient(180deg, transparent 0%, rgba(255, 184, 77, 0.05) 100%);
}

.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  text-align: center;
}

.footer-inner p {
  margin: 0 0 10px;
  font-size: 0.86rem;
  color: var(--text-mute);
}

.footer-inner p:first-child {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-soft);
  letter-spacing: 0.02em;
}

.footer-inner a {
  color: var(--text-soft);
  padding: 2px 6px;
  border-radius: 6px;
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}

.footer-inner a:hover {
  color: var(--sun-dark);
  background: rgba(247, 165, 49, 0.14);
  text-decoration: none;
}

html[data-theme="dark"] .footer-inner a:hover { color: var(--sun); }

/* ============ Back to top ============ */
#back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 90;
  padding: 12px 18px;
  font-family: inherit;
  font-size: 0.84rem;
  font-weight: 600;
  color: #fff;
  background: var(--grad-accent);
  border: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.9);
  box-shadow: 0 10px 26px rgba(247, 165, 49, 0.45);
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease), visibility 0.35s var(--ease), filter 0.25s var(--ease);
}

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

#back-to-top:hover {
  filter: brightness(1.08);
  transform: translateY(-3px) scale(1.04);
}

#back-to-top:active {
  transform: translateY(0) scale(0.98);
}

/* ============ Scroll reveal ============ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  will-change: opacity, transform;
}

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

.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ============ Responsive ============ */
@media (max-width: 1080px) {
  #main-nav ul { gap: 0 2px; }
  #main-nav a { padding: 6px 8px; font-size: 0.85rem; }
  .header-actions input[type="search"] { width: 140px; }
  .header-actions input[type="search"]:focus { width: 170px; }
}

@media (max-width: 920px) {
  :root { --header-h: 62px; }

  .header-inner {
    flex-wrap: wrap;
    height: auto;
    padding: 10px 16px;
    gap: 10px;
  }

  .brand { flex: 1 1 auto; }

  #menu-toggle {
    display: inline-block;
    order: 2;
  }

  .header-actions {
    order: 3;
    flex-wrap: wrap;
    gap: 8px;
  }

  .header-actions form {
    order: 1;
    flex: 1 1 100%;
  }

  .header-actions input[type="search"],
  .header-actions input[type="search"]:focus {
    width: 100%;
  }

  #main-nav {
    order: 4;
    flex: 1 1 100%;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.45s var(--ease), opacity 0.35s var(--ease), margin 0.35s var(--ease);
  }

  #main-nav.is-open {
    max-height: 480px;
    opacity: 1;
    margin-top: 4px;
  }

  #main-nav ul {
    flex-direction: column;
    gap: 2px;
    padding-bottom: 8px;
  }

  #main-nav a {
    display: block;
    padding: 10px 14px;
    font-size: 0.92rem;
    border-radius: var(--radius-sm);
  }

  .hero-carousel { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .anchor-nav ul { justify-content: flex-start; }
}

@media (max-width: 640px) {
  body { font-size: 15px; }

  main { padding: 0 14px 30px; }

  main > section {
    padding: 20px 16px;
    border-radius: var(--radius);
    margin-bottom: 24px;
  }

  #hero {
    padding: 24px 18px;
    border-radius: var(--radius);
  }

  .hero-stats {
    gap: 10px;
  }

  .hero-stats .stat { padding: 12px 8px; }

  #news article,
  #articles article { padding: 16px; }

  #faq summary {
    padding: 14px 46px 14px 16px;
    font-size: 0.92rem;
  }

  #faq details > p { padding: 0 16px 16px; }

  #sitemap a,
  #links a { padding: 7px 14px; font-size: 0.82rem; }

  #back-to-top {
    right: 14px;
    bottom: 14px;
    padding: 10px 15px;
    font-size: 0.8rem;
  }

  .header-actions button { padding: 7px 13px; font-size: 0.8rem; }
}

@media (max-width: 380px) {
  .hero-stats { grid-template-columns: 1fr; }
  .brand-name { font-size: 1.05rem; }
}

/* ============ Print ============ */
@media print {
  #site-header,
  .anchor-nav,
  #back-to-top,
  .header-actions,
  #menu-toggle { display: none !important; }

  body {
    background: #fff;
    color: #000;
    font-size: 12pt;
  }

  main > section {
    box-shadow: none;
    border: 1px solid #ccc;
    break-inside: avoid;
  }

  a { color: #000; text-decoration: underline; }
  .reveal { opacity: 1; transform: none; }
}