:root {
  --primary: #c2185b;
  --primary-dark: #8e0e40;
  --primary-light: #f8bbd0;
  --secondary: #7b1fa2;
  --secondary-light: #e1bee7;
  --accent: #ff6f91;
  --bg: #fffafc;
  --bg-alt: #fdf3f7;
  --surface: #ffffff;
  --surface-glass: rgba(255, 255, 255, 0.72);
  --text: #2b2230;
  --text-muted: #6b5f70;
  --border: rgba(194, 24, 91, 0.14);
  --shadow-sm: 0 2px 8px rgba(123, 31, 162, 0.08);
  --shadow-md: 0 8px 28px rgba(123, 31, 162, 0.12);
  --shadow-lg: 0 18px 48px rgba(123, 31, 162, 0.18);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;
  --gradient-hero: linear-gradient(135deg, #c2185b 0%, #7b1fa2 55%, #4a148c 100%);
  --gradient-soft: linear-gradient(135deg, rgba(194, 24, 91, 0.08), rgba(123, 31, 162, 0.08));
  --gradient-btn: linear-gradient(135deg, #c2185b, #7b1fa2);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-serif: "Songti SC", "SimSun", Georgia, "Noto Serif SC", serif;
  --header-h: 72px;
  --transition: 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --primary: #f06292;
    --primary-dark: #c2185b;
    --primary-light: #4a1a30;
    --secondary: #ba68c8;
    --secondary-light: #3a1f45;
    --accent: #ff8fab;
    --bg: #140d18;
    --bg-alt: #1b1122;
    --surface: #221629;
    --surface-glass: rgba(34, 22, 41, 0.72);
    --text: #f3e9f5;
    --text-muted: #b39fbc;
    --border: rgba(240, 98, 146, 0.22);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 18px 48px rgba(0, 0, 0, 0.6);
    --gradient-hero: linear-gradient(135deg, #7b1fa2 0%, #c2185b 55%, #4a148c 100%);
    --gradient-soft: linear-gradient(135deg, rgba(240, 98, 146, 0.12), rgba(186, 104, 200, 0.12));
    --gradient-btn: linear-gradient(135deg, #f06292, #ba68c8);
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 60px);
  -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(194, 24, 91, 0.07), transparent 42%),
    radial-gradient(circle at 88% 22%, rgba(123, 31, 162, 0.07), transparent 46%),
    radial-gradient(circle at 50% 92%, rgba(255, 111, 145, 0.06), transparent 50%);
  background-attachment: fixed;
  overflow-x: hidden;
  transition: background-color var(--transition), color var(--transition);
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition), opacity var(--transition);
}

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

h1, h2, h3, h4 {
  line-height: 1.3;
  margin: 0 0 0.6em;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(1.75rem, 4.2vw, 2.75rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.35rem); }

p {
  margin: 0 0 1em;
}

ul, ol {
  margin: 0 0 1em;
  padding-left: 1.3em;
}

li {
  margin-bottom: 0.4em;
}

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.skip:focus {
  position: fixed;
  top: 12px;
  left: 12px;
  width: auto;
  height: auto;
  clip: auto;
  padding: 10px 18px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-sm);
  z-index: 999;
  font-weight: 600;
}

/* ============ Header ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface-glass);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition), background var(--transition);
}

.site-header:hover {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: var(--header-h);
  flex-wrap: wrap;
}

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

.logo {
  border-radius: 12px;
  box-shadow: 0 4px 14px rgba(194, 24, 91, 0.35);
  transition: transform var(--transition);
}

.brand:hover .logo {
  transform: rotate(-6deg) scale(1.06);
}

.brand-name {
  font-size: 1.3rem;
  font-weight: 800;
  background: var(--gradient-btn);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  letter-spacing: 0.02em;
}

.main-nav {
  flex: 1 1 auto;
}

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

.main-nav a {
  display: inline-block;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  position: relative;
  transition: color var(--transition), background var(--transition), transform var(--transition);
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 4px;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--gradient-btn);
  transform: translateX(-50%);
  transition: width var(--transition);
}

.main-nav a:hover {
  color: var(--primary);
  background: var(--gradient-soft);
  transform: translateY(-1px);
}

.main-nav a:hover::after {
  width: 40%;
}

.site-search {
  display: flex;
  align-items: center;
  gap: 0;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface);
  transition: box-shadow var(--transition), border-color var(--transition);
}

.site-search:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(194, 24, 91, 0.12);
}

.site-search input {
  border: 0;
  outline: 0;
  padding: 9px 16px;
  font-size: 0.9rem;
  width: 190px;
  background: transparent;
  color: var(--text);
  font-family: inherit;
}

.site-search input::placeholder {
  color: var(--text-muted);
  opacity: 0.7;
}

.site-search button {
  border: 0;
  cursor: pointer;
  padding: 9px 18px;
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
  background: var(--gradient-btn);
  font-family: inherit;
  transition: filter var(--transition), transform var(--transition);
}

.site-search button:hover {
  filter: brightness(1.1);
}

.site-search button:active {
  transform: scale(0.97);
}

/* ============ Hero ============ */
.hero {
  position: relative;
  padding: 72px 0 88px;
  background: var(--gradient-hero);
  color: #fff;
  overflow: hidden;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.5;
  pointer-events: none;
}

.hero::before {
  width: 420px;
  height: 420px;
  background: rgba(255, 111, 145, 0.55);
  top: -140px;
  right: -80px;
  animation: float 14s ease-in-out infinite;
}

.hero::after {
  width: 360px;
  height: 360px;
  background: rgba(123, 31, 162, 0.6);
  bottom: -160px;
  left: -100px;
  animation: float 18s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -30px) scale(1.08); }
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-text h1 {
  color: #fff;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.18);
}

.eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.16);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: #fff;
  margin-bottom: 18px;
}

.hero-lead {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.92);
  max-width: 640px;
}

.hero-answer {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.9);
  padding: 16px 20px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.12);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.22);
  max-width: 660px;
}

.hero-answer strong {
  color: #fff;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 26px 0 30px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 30px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.98rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255, 255, 255, 0.35) 50%, transparent 70%);
  transform: translateX(-120%);
  transition: transform 0.6s ease;
}

.btn:hover::after {
  transform: translateX(120%);
}

.btn.primary {
  background: #fff;
  color: var(--primary-dark);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
}

.btn.primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.26);
  color: var(--primary-dark);
}

.btn.ghost {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.btn.ghost:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-3px);
  color: #fff;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.hero-stats li {
  padding: 16px 12px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  text-align: center;
  margin: 0;
  transition: transform var(--transition), background var(--transition);
}

.hero-stats li:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.18);
}

.hero-stats .num {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  font-variant-numeric: tabular-nums;
}

.hero-stats small {
  display: block;
  font-size: 0.74rem;
  color: rgba(255, 255, 255, 0.82);
  margin-top: 4px;
}

.hero-media {
  display: flex;
  justify-content: center;
  animation: heroIn 1s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.hero-media svg {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.hero-media svg:hover {
  transform: translateY(-8px) rotate(-1deg);
}

@keyframes heroIn {
  from { opacity: 0; transform: translateY(30px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* ============ Anchor Nav ============ */
.anchor-nav {
  position: sticky;
  top: var(--header-h);
  z-index: 90;
  background: var(--surface-glass);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  backdrop-filter: blur(16px) saturate(150%);
  border-bottom: 1px solid var(--border);
}

.anchor-nav ul {
  display: flex;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 10px 0;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.anchor-nav a {
  display: inline-block;
  white-space: nowrap;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  transition: color var(--transition), background var(--transition);
}

.anchor-nav a:hover {
  color: var(--primary);
  background: var(--gradient-soft);
}

/* ============ Sections ============ */
.section {
  padding: 72px 0;
  position: relative;
}

.section.alt {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section > .container > h2 {
  position: relative;
  padding-bottom: 16px;
  margin-bottom: 28px;
}

.section > .container > h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 64px;
  height: 4px;
  border-radius: 4px;
  background: var(--gradient-btn);
}

.section > .container > p {
  max-width: 860px;
  color: var(--text-muted);
}

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

.section.alt h3 {
  color: var(--secondary);
}

/* ============ Reviews ============ */
.review-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
  margin-top: 12px;
}

.review-list blockquote {
  position: relative;
  margin: 0;
  padding: 30px 26px 24px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.review-list blockquote::before {
  content: "\201C";
  position: absolute;
  top: 6px;
  left: 18px;
  font-family: var(--font-serif);
  font-size: 3.4rem;
  line-height: 1;
  color: var(--primary);
  opacity: 0.22;
}

.review-list blockquote:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.review-list blockquote p {
  color: var(--text);
  font-size: 0.98rem;
  margin-bottom: 16px;
}

.review-list blockquote footer {
  font-size: 0.86rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* ============ News ============ */
.news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.news-list li {
  position: relative;
  margin: 0;
  padding: 24px 26px 24px 30px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-left-color var(--transition);
}

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

.news-list time {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--gradient-soft);
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 10px;
}

.news-list h3 {
  margin: 0 0 8px;
  color: var(--text);
  font-size: 1.1rem;
}

.news-list p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.94rem;
}

/* ============ Articles ============ */
.article-card {
  position: relative;
  padding: 28px 30px;
  margin-bottom: 22px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.article-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-soft);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

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

.article-card:hover::before {
  opacity: 1;
}

.article-card > * {
  position: relative;
  z-index: 1;
}

.article-card h3 {
  margin-top: 0;
  color: var(--text);
  font-size: 1.18rem;
}

.article-card:hover h3 {
  color: var(--primary);
}

.article-card .meta {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.article-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.article-card > a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  background: var(--gradient-soft);
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.article-card > a::after {
  content: "\2192";
  transition: transform var(--transition);
}

.article-card > a:hover {
  background: var(--gradient-btn);
  color: #fff;
  transform: translateX(3px);
}

.article-card > a:hover::after {
  transform: translateX(4px);
}

/* ============ HowTo ============ */
#howto ol {
  counter-reset: step;
  list-style: none;
  padding-left: 0;
  display: grid;
  gap: 12px;
}

#howto ol li {
  position: relative;
  counter-increment: step;
  padding: 16px 20px 16px 62px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

#howto ol li::before {
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.9rem;
  color: #fff;
  background: var(--gradient-btn);
  box-shadow: 0 4px 12px rgba(194, 24, 91, 0.3);
}

#howto ol li:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}

/* ============ FAQ ============ */
.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.faq-list details[open] {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.faq-list summary {
  position: relative;
  cursor: pointer;
  padding: 18px 56px 18px 22px;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
  list-style: none;
  transition: color var(--transition), background var(--transition);
}

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

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--primary);
  background: var(--gradient-soft);
  transition: transform var(--transition), background var(--transition), color var(--transition);
}

.faq-list details[open] summary::after {
  content: "\2212";
  transform: translateY(-50%) rotate(180deg);
  background: var(--gradient-btn);
  color: #fff;
}

.faq-list summary:hover {
  color: var(--primary);
  background: var(--gradient-soft);
}

.faq-list details p {
  margin: 0;
  padding: 0 22px 20px;
  color: var(--text-muted);
  font-size: 0.94rem;
  animation: fadeDown 0.35s ease both;
}

@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============ Contact ============ */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
  margin-top: 12px;
}

.contact-grid > div {
  padding: 28px 26px;
  border-radius: var(--radius-lg);
  background: var(--surface-glass);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.contact-grid > div:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.contact-grid h3 {
  margin-top: 0;
  color: var(--primary);
}

.contact-grid p {
  margin: 0 0 8px;
  font-size: 0.93rem;
  color: var(--text-muted);
}

/* ============ Sitemap & Links ============ */
.sitemap-list,
.friend-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.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);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition);
}

.sitemap-list a:hover,
.friend-links a:hover {
  color: #fff;
  background: var(--gradient-btn);
  border-color: transparent;
  transform: translateY(-2px);
}

/* ============ Footer ============ */
.site-footer {
  position: relative;
  padding: 64px 0 40px;
  background: linear-gradient(160deg, #2b0d22 0%, #1a0a1f 60%, #12060f 100%);
  color: rgba(255, 255, 255, 0.78);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(194, 24, 91, 0.4), transparent 70%);
  filter: blur(40px);
  pointer-events: none;
}

.footer-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
}

.site-footer h2 {
  color: #fff;
  font-size: 1.4rem;
  margin-bottom: 14px;
}

.site-footer h3 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 14px;
}

.site-footer p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.66);
  margin-bottom: 10px;
}

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

.site-footer li {
  margin-bottom: 8px;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.88rem;
  position: relative;
  transition: color var(--transition), padding-left var(--transition);
}

.site-footer a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 0;
  height: 2px;
  background: var(--accent);
  transform: translateY(-50%);
  transition: width var(--transition);
}

.site-footer a:hover {
  color: #fff;
  padding-left: 14px;
}

.site-footer a:hover::before {
  width: 8px;
}

/* ============ Back to top ============ */
.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 26px;
  z-index: 120;
  padding: 12px 20px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  background: var(--gradient-btn);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}

.back-to-top:hover {
  color: #fff;
  transform: translateY(-4px) scale(1.04);
  box-shadow: var(--shadow-lg);
}

/* ============ Scroll animations ============ */
@supports (animation-timeline: view()) {
  .section > .container > h2,
  .review-list blockquote,
  .news-list li,
  .article-card,
  .contact-grid > div,
  #howto ol li {
    animation: revealUp linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 40%;
  }
}

@keyframes revealUp {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: translateY(0); }
}

@supports not (animation-timeline: view()) {
  .section > .container > h2,
  .review-list blockquote,
  .news-list li,
  .article-card,
  .contact-grid > div,
  #howto ol li {
    animation: revealUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .hero-media {
    order: -1;
    max-width: 460px;
    margin: 0 auto;
  }

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

  .footer-inner > div:first-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 860px) {
  .header-inner {
    gap: 12px;
  }

  .main-nav {
    order: 3;
    flex-basis: 100%;
  }

  .main-nav ul {
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 4px;
    scrollbar-width: none;
  }

  .main-nav ul::-webkit-scrollbar {
    display: none;
  }

  .site-search {
    margin-left: auto;
  }

  .site-search input {
    width: 140px;
  }

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

  .anchor-nav {
    top: 0;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 18px;
  }

  .hero {
    padding: 48px 0 60px;
  }

  .section {
    padding: 52px 0;
  }

  .site-search input {
    width: 110px;
    padding: 8px 12px;
  }

  .site-search button {
    padding: 8px 14px;
  }

  .brand-name {
    font-size: 1.15rem;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .hero-stats .num {
    font-size: 1.25rem;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.92rem;
  }

  .article-card,
  .news-list li,
  .contact-grid > div,
  .review-list blockquote {
    padding: 22px 20px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .back-to-top {
    right: 14px;
    bottom: 16px;
    padding: 10px 16px;
    font-size: 0.8rem;
  }

  .faq-list summary {
    padding: 16px 52px 16px 18px;
    font-size: 0.95rem;
  }
}

@media (max-width: 380px) {
  .site-search input {
    width: 90px;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }
}