:root {
  --brand-primary: #E8541E;
  --brand-primary-dark: #C43F10;
  --brand-primary-light: #FF7A45;
  --brand-accent: #FFD34D;
  --brand-brown: #7A3B12;
  --brand-blue: #2F6FED;
  --brand-green: #2FB86B;
  --gradient-hero: linear-gradient(135deg, #E8541E 0%, #FF7A45 45%, #FFB84D 100%);
  --gradient-hero-alt: linear-gradient(135deg, #2F6FED 0%, #7FB0FF 50%, #C9DEFF 100%);
  --gradient-hero-green: linear-gradient(135deg, #2FB86B 0%, #57D08A 50%, #B8EDCC 100%);
  --bg-body: #FFF9F4;
  --bg-surface: #FFFFFF;
  --bg-surface-alt: #FFF3E8;
  --bg-glass: rgba(255, 255, 255, 0.72);
  --bg-glass-border: rgba(255, 255, 255, 0.55);
  --text-primary: #2B1B12;
  --text-secondary: #5C4636;
  --text-muted: #8A7462;
  --text-inverse: #FFFFFF;
  --border-color: rgba(232, 84, 30, 0.16);
  --shadow-sm: 0 2px 8px rgba(122, 59, 18, 0.06);
  --shadow-md: 0 8px 24px rgba(122, 59, 18, 0.10);
  --shadow-lg: 0 16px 48px rgba(122, 59, 18, 0.16);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;
  --header-height: 76px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --content-max: 1180px;
  --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

html[data-theme="dark"] {
  --bg-body: #17110D;
  --bg-surface: #221A14;
  --bg-surface-alt: #2A2018;
  --bg-glass: rgba(34, 26, 20, 0.72);
  --bg-glass-border: rgba(255, 211, 77, 0.14);
  --text-primary: #F7EDE4;
  --text-secondary: #D8C6B6;
  --text-muted: #A08C7B;
  --border-color: rgba(255, 211, 77, 0.16);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.55);
}

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

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

body {
  margin: 0;
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-primary);
  background-color: var(--bg-body);
  background-image:
    radial-gradient(1200px 600px at 85% -10%, rgba(232, 84, 30, 0.10), transparent 60%),
    radial-gradient(900px 500px at -10% 20%, rgba(255, 211, 77, 0.12), transparent 55%);
  background-attachment: fixed;
  transition: background-color var(--transition-base), color var(--transition-base);
  overflow-x: hidden;
}

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

a {
  color: var(--brand-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover,
a:focus-visible {
  color: var(--brand-primary-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

h1, h2, h3, h4 {
  margin: 0 0 0.6em;
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--text-primary);
}

h1 { font-size: clamp(1.7rem, 3.6vw, 2.6rem); }
h2 { font-size: clamp(1.4rem, 2.6vw, 2rem); }
h3 { font-size: clamp(1.1rem, 1.8vw, 1.35rem); }

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

ul, ol {
  margin: 0 0 1em;
  padding-left: 1.4em;
  color: var(--text-secondary);
}

li {
  margin-bottom: 0.45em;
}

blockquote {
  margin: 1.2em 0;
  padding: 1em 1.4em;
  border-left: 4px solid var(--brand-primary);
  background: var(--bg-surface-alt);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-secondary);
  font-style: normal;
}

blockquote p {
  margin: 0;
}

code, pre {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

:focus-visible {
  outline: 3px solid var(--brand-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.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;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 1000;
  padding: 10px 20px;
  background: var(--brand-primary);
  color: #fff;
  border-radius: var(--radius-pill);
  font-weight: 700;
  box-shadow: var(--shadow-md);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 12px;
  color: #fff;
  text-decoration: none;
}

/* ============ Header ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  backdrop-filter: blur(18px) saturate(180%);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

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

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

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  flex-shrink: 0;
}

.brand-logo {
  border-radius: 12px;
  box-shadow: 0 4px 14px rgba(232, 84, 30, 0.35);
  transition: transform var(--transition-base);
}

.brand:hover .brand-logo {
  transform: rotate(-6deg) scale(1.05);
}

.brand-name {
  font-size: 1.3rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  white-space: nowrap;
}

.brand-slogan {
  font-size: 0.75rem;
  color: var(--text-muted);
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-color);
  white-space: nowrap;
}

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

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

.main-nav li {
  margin: 0;
}

.main-nav a {
  display: inline-block;
  padding: 7px 12px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: var(--radius-pill);
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--brand-primary);
  background: var(--bg-surface-alt);
  transform: translateY(-2px);
  text-decoration: none;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.site-search {
  display: flex;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-pill);
  overflow: hidden;
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.site-search:focus-within {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 4px rgba(232, 84, 30, 0.14);
}

.site-search input[type="search"] {
  border: 0;
  background: transparent;
  padding: 9px 14px;
  font-size: 0.88rem;
  color: var(--text-primary);
  width: 160px;
  font-family: inherit;
  outline: none;
}

.site-search input[type="search"]::placeholder {
  color: var(--text-muted);
}

.site-search button {
  border: 0;
  cursor: pointer;
  padding: 9px 16px;
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  background: var(--gradient-hero);
  font-family: inherit;
  transition: filter var(--transition-fast);
}

.site-search button:hover {
  filter: brightness(1.08);
}

.theme-toggle,
.menu-toggle {
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-primary);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  font-size: 1.05rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  flex-shrink: 0;
}

.theme-toggle:hover,
.menu-toggle:hover {
  transform: translateY(-2px) rotate(8deg);
  box-shadow: var(--shadow-md);
}

.menu-toggle {
  display: none;
}

/* ============ Hero ============ */
.hero {
  padding: 40px 20px 8px;
}

.hero-carousel {
  position: relative;
  max-width: var(--content-max);
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  isolation: isolate;
}

.hero-slide {
  display: none;
  position: relative;
  padding: clamp(28px, 5vw, 64px);
  min-height: 420px;
  background: var(--gradient-hero);
  color: var(--text-inverse);
  overflow: hidden;
}

.hero-slide:nth-child(2) {
  background: var(--gradient-hero-alt);
}

.hero-slide:nth-child(3) {
  background: var(--gradient-hero-green);
}

.hero-slide::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 82% 18%, rgba(255, 255, 255, 0.35), transparent 42%),
    radial-gradient(circle at 12% 92%, rgba(255, 255, 255, 0.22), transparent 45%);
  pointer-events: none;
  z-index: 0;
}

.hero-slide.is-active {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  grid-template-areas:
    "title art"
    "lead art"
    "actions art";
  align-items: center;
  gap: 12px 40px;
  animation: heroFade 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes heroFade {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-slide h1,
.hero-slide h2 {
  grid-area: title;
  color: #fff;
  margin: 0;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.18);
  position: relative;
  z-index: 1;
}

.hero-lead {
  grid-area: lead;
  color: rgba(255, 255, 255, 0.94);
  font-size: clamp(0.95rem, 1.6vw, 1.1rem);
  margin: 0;
  max-width: 62ch;
  position: relative;
  z-index: 1;
}

.hero-actions {
  grid-area: actions;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 12px;
  position: relative;
  z-index: 1;
}

.hero-illustration {
  grid-area: art;
  justify-self: center;
  align-self: center;
  width: 100%;
  max-width: 380px;
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.22);
  background: rgba(255, 255, 255, 0.9);
  padding: 10px;
  position: relative;
  z-index: 1;
  animation: floaty 6s ease-in-out infinite;
}

@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-pill);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary {
  background: #fff;
  color: var(--brand-primary-dark);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.18);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.26);
  color: var(--brand-primary-dark);
  text-decoration: none;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.65);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: rgba(255, 255, 255, 0.28);
  transform: translateY(-3px);
  color: #fff;
  text-decoration: none;
}

.carousel-controls {
  position: absolute;
  right: 22px;
  bottom: 22px;
  display: flex;
  gap: 10px;
  z-index: 3;
}

.carousel-prev,
.carousel-next {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.22);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: #fff;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.carousel-prev:hover,
.carousel-next:hover {
  background: rgba(255, 255, 255, 0.4);
  transform: scale(1.08);
}

/* ============ Breadcrumb ============ */
.breadcrumb {
  max-width: var(--content-max);
  margin: 22px auto 0;
  padding: 0 20px;
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.breadcrumb li {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--text-muted);
  opacity: 0.6;
}

.breadcrumb a {
  color: var(--text-secondary);
  font-weight: 600;
}

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

/* ============ Stats ============ */
.stats {
  max-width: var(--content-max);
  margin: 32px auto 0;
  padding: 0 20px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.stat-item {
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  backdrop-filter: blur(14px) saturate(160%);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-lg);
  padding: 26px 18px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  position: relative;
  overflow: hidden;
}

.stat-item::after {
  content: "";
  position: absolute;
  inset: auto -30% -60% auto;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232, 84, 30, 0.16), transparent 70%);
  pointer-events: none;
}

.stat-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.stat-number {
  display: block;
  font-size: clamp(1.9rem, 3.4vw, 2.6rem);
  font-weight: 900;
  line-height: 1.1;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  margin-bottom: 6px;
}

.stat-label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* ============ Content Sections ============ */
.content-section {
  max-width: var(--content-max);
  margin: 34px auto 0;
  padding: clamp(24px, 3.4vw, 44px);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.content-section:hover {
  box-shadow: var(--shadow-md);
}

.content-section > h2 {
  position: relative;
  padding-left: 18px;
  margin-bottom: 1em;
}

.content-section > h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.18em;
  bottom: 0.18em;
  width: 6px;
  border-radius: var(--radius-pill);
  background: var(--gradient-hero);
}

.content-section h3 {
  margin-top: 1.6em;
  color: var(--text-primary);
}

.content-section h3::before {
  content: "◆";
  color: var(--brand-primary);
  font-size: 0.7em;
  margin-right: 8px;
  vertical-align: middle;
}

.timeline {
  list-style: none;
  padding-left: 0;
  position: relative;
  margin-left: 8px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--brand-primary), var(--brand-accent));
  border-radius: 2px;
  opacity: 0.5;
}

.timeline li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 0.9em;
}

.timeline li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 3px solid var(--brand-primary);
  box-shadow: 0 0 0 4px rgba(232, 84, 30, 0.12);
}

.timeline strong {
  color: var(--brand-primary);
}

.advantage-list {
  list-style: none;
  padding-left: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
}

.advantage-list li {
  margin: 0;
  padding: 16px 18px 16px 46px;
  position: relative;
  background: var(--bg-surface-alt);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.advantage-list li::before {
  content: "✓";
  position: absolute;
  left: 14px;
  top: 14px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--gradient-hero);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
}

.advantage-list li:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
}

.advantage-list strong {
  color: var(--text-primary);
}

/* ============ News ============ */
.news-list {
  list-style: none;
  padding-left: 0;
  display: grid;
  gap: 16px;
}

.news-list li {
  margin: 0;
  padding: 20px 22px;
  background: var(--bg-surface-alt);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--brand-primary);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.news-list li:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-sm);
  border-left-color: var(--brand-accent);
}

.news-list h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

.news-list h3::before {
  content: none;
}

.news-list h3 a {
  color: var(--text-primary);
  text-decoration: none;
}

.news-list h3 a:hover {
  color: var(--brand-primary);
}

.news-list p {
  margin: 0 0 6px;
  font-size: 0.92rem;
}

.news-list .meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.meta {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ============ Articles ============ */
.article-card {
  position: relative;
  margin-top: 18px;
  padding: 24px 26px;
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
  overflow: hidden;
}

.article-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-hero);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.article-card:hover::before {
  transform: scaleX(1);
}

.article-card h3 {
  margin-top: 0;
  margin-bottom: 8px;
}

.article-card h3::before {
  content: none;
}

.article-card .meta {
  margin-bottom: 12px;
}

.article-card p {
  font-size: 0.94rem;
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--brand-primary);
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  background: rgba(232, 84, 30, 0.09);
  transition: background var(--transition-fast), transform var(--transition-fast), gap var(--transition-fast);
}

.read-more::after {
  content: "→";
  transition: transform var(--transition-fast);
}

.read-more:hover {
  background: rgba(232, 84, 30, 0.18);
  gap: 10px;
  text-decoration: none;
}

.read-more:hover::after {
  transform: translateX(3px);
}

/* ============ FAQ ============ */
.faq-item {
  margin-top: 12px;
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.faq-item[open] {
  box-shadow: var(--shadow-sm);
  border-color: rgba(232, 84, 30, 0.35);
}

.faq-item summary {
  cursor: pointer;
  padding: 16px 48px 16px 20px;
  font-weight: 700;
  color: var(--text-primary);
  list-style: none;
  position: relative;
  transition: background var(--transition-fast), color var(--transition-fast);
  user-select: none;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--gradient-hero);
  color: #fff;
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-base);
}

.faq-item[open] summary::after {
  content: "−";
  transform: translateY(-50%) rotate(180deg);
}

.faq-item summary:hover {
  background: rgba(232, 84, 30, 0.06);
  color: var(--brand-primary);
}

.faq-item p {
  margin: 0;
  padding: 0 20px 18px;
  font-size: 0.94rem;
  animation: faqOpen 0.3s ease;
}

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

/* ============ Contact / Sitemap / Links ============ */
.contact-list,
.sitemap-list,
.friend-links {
  list-style: none;
  padding-left: 0;
}

.contact-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
}

.contact-list li {
  margin: 0;
  padding: 14px 18px;
  background: var(--bg-surface-alt);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  font-size: 0.94rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.contact-list li:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.contact-list strong {
  color: var(--text-primary);
}

.sitemap-list,
.friend-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.sitemap-list li,
.friend-links li {
  margin: 0;
}

.sitemap-list a,
.friend-links a {
  display: inline-block;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-color);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast), border-color var(--transition-fast);
}

.sitemap-list a:hover,
.friend-links a:hover {
  background: var(--gradient-hero);
  color: #fff;
  border-color: transparent;
  transform: translateY(-3px);
  text-decoration: none;
}

/* ============ Footer ============ */
.site-footer {
  margin-top: 44px;
  background: linear-gradient(160deg, #2B1B12 0%, #3E281A 60%, #4A2F1D 100%);
  color: #EADFD4;
  padding: clamp(32px, 5vw, 56px) 20px 28px;
  border-top: 4px solid var(--brand-primary);
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: -40% -10% auto auto;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232, 84, 30, 0.28), transparent 65%);
  pointer-events: none;
}

.footer-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr 0.9fr;
  gap: 32px;
  position: relative;
  z-index: 1;
}

.footer-inner h2 {
  color: #fff;
  font-size: 1.4rem;
  margin-bottom: 0.5em;
}

.footer-inner h3 {
  color: var(--brand-accent);
  font-size: 1rem;
  margin-top: 1.4em;
  margin-bottom: 0.4em;
}

.footer-inner h3::before {
  content: none;
}

.footer-inner p {
  color: #C9B8A8;
  font-size: 0.88rem;
  margin-bottom: 0.7em;
}

.footer-inner a {
  color: var(--brand-accent);
}

.footer-inner a:hover {
  color: #fff;
}

.footer-about p:first-of-type {
  color: #D8C9BB;
}

/* ============ Back to top ============ */
#back-to-top {
  position: fixed;
  right: 22px;
  bottom: 26px;
  z-index: 200;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: 0;
  cursor: pointer;
  background: var(--gradient-hero);
  color: #fff;
  font-size: 1.3rem;
  font-weight: 900;
  box-shadow: 0 10px 26px rgba(232, 84, 30, 0.45);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.9);
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
}

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

#back-to-top:hover {
  transform: translateY(-4px) scale(1.06);
  box-shadow: 0 16px 34px rgba(232, 84, 30, 0.55);
}

/* ============ Scroll reveal ============ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
}

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .hero-illustration { animation: none; }
}

/* ============ Responsive ============ */
@media (max-width: 1080px) {
  .main-nav a {
    padding: 6px 9px;
    font-size: 0.85rem;
  }
  .site-search input[type="search"] {
    width: 120px;
  }
  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }
  .footer-author {
    grid-column: 1 / -1;
  }
}

@media (max-width: 900px) {
  :root {
    --header-height: 64px;
  }

  .header-inner {
    gap: 12px;
  }

  .brand-slogan {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .main-nav {
    order: 5;
    flex-basis: 100%;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
  }

  .main-nav.is-open {
    max-height: 620px;
  }

  .main-nav ul {
    flex-direction: column;
    padding: 8px 0 14px;
    gap: 2px;
  }

  .main-nav a {
    display: block;
    padding: 11px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
  }

  .site-search {
    display: none;
  }

  .hero-slide.is-active {
    grid-template-columns: 1fr;
    grid-template-areas:
      "art"
      "title"
      "lead"
      "actions";
    text-align: center;
    min-height: auto;
    gap: 10px;
  }

  .hero-illustration {
    max-width: 300px;
    margin-bottom: 8px;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-lead {
    margin: 0 auto;
  }

  .stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-author {
    grid-column: auto;
  }
}

@media (max-width: 560px) {
  body {
    font-size: 15px;
  }

  .hero {
    padding: 20px 12px 4px;
  }

  .hero-slide {
    padding: 26px 20px 30px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
    padding: 12px 20px;
  }

  .carousel-controls {
    right: 14px;
    bottom: 14px;
  }

  .carousel-prev,
  .carousel-next {
    width: 38px;
    height: 38px;
    font-size: 1.25rem;
  }

  .breadcrumb {
    padding: 0 14px;
  }

  .stats {
    padding: 0 14px;
    gap: 12px;
    margin-top: 22px;
  }

  .stat-item {
    padding: 18px 12px;
    border-radius: var(--radius-md);
  }

  .content-section {
    margin: 20px 12px 0;
    padding: 22px 18px;
    border-radius: var(--radius-md);
  }

  .advantage-list,
  .contact-list {
    grid-template-columns: 1fr;
  }

  .article-card {
    padding: 18px 18px;
  }

  .faq-item summary {
    padding: 14px 44px 14px 16px;
    font-size: 0.94rem;
  }

  .faq-item p {
    padding: 0 16px 16px;
  }

  #back-to-top {
    right: 14px;
    bottom: 16px;
    width: 44px;
    height: 44px;
  }

  .site-footer {
    padding: 30px 16px 22px;
  }
}

@media (max-width: 380px) {
  .brand-name {
    font-size: 1.1rem;
  }
  .brand-logo {
    width: 38px;
    height: 38px;
  }
  .theme-toggle,
  .menu-toggle {
    width: 38px;
    height: 38px;
  }
}

/* ============ Print ============ */
@media print {
  .site-header,
  .hero-carousel,
  .carousel-controls,
  #back-to-top,
  .site-search,
  .theme-toggle,
  .menu-toggle {
    display: none !important;
  }
  body {
    background: #fff;
    color: #000;
  }
  .content-section {
    box-shadow: none;
    border: 1px solid #ccc;
    page-break-inside: avoid;
  }
  a {
    color: #000;
    text-decoration: underline;
  }
}