:root {
  --bg: #f4f6fb;
  --bg-elevated: #ffffff;
  --bg-muted: #eef1f8;
  --text: #1a1a2e;
  --text-secondary: #4a4e69;
  --text-muted: #7b7f9e;
  --primary: #e94560;
  --primary-hover: #d63851;
  --primary-soft: rgba(233, 69, 96, 0.12);
  --accent: #0f3460;
  --accent-2: #16213e;
  --border: rgba(26, 26, 46, 0.1);
  --border-strong: rgba(26, 26, 46, 0.18);
  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-border: rgba(255, 255, 255, 0.5);
  --shadow-sm: 0 2px 8px rgba(26, 26, 46, 0.06);
  --shadow-md: 0 8px 24px rgba(26, 26, 46, 0.1);
  --shadow-lg: 0 16px 48px rgba(26, 26, 46, 0.14);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --header-h: 68px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --gradient-hero: linear-gradient(135deg, #1a1a2e 0%, #16213e 45%, #0f3460 100%);
  --gradient-primary: linear-gradient(135deg, #e94560 0%, #ff6b81 100%);
  --gradient-accent: linear-gradient(135deg, #0f3460 0%, #16213e 100%);
  --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.9), rgba(244,246,251,0.7));
}

body.dark {
  --bg: #0d0d1a;
  --bg-elevated: #16162b;
  --bg-muted: #1c1c36;
  --text: #eaeaea;
  --text-secondary: #b8bcd4;
  --text-muted: #8a8fb0;
  --primary: #ff5c77;
  --primary-hover: #ff7389;
  --primary-soft: rgba(255, 92, 119, 0.15);
  --accent: #4a7fb5;
  --accent-2: #2a3f6b;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --glass-bg: rgba(22, 22, 43, 0.72);
  --glass-border: rgba(255, 255, 255, 0.08);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
  --gradient-hero: linear-gradient(135deg, #0d0d1a 0%, #16162b 45%, #1c2a4a 100%);
  --gradient-card: linear-gradient(145deg, rgba(28,28,54,0.9), rgba(22,22,43,0.7));
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

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

h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: clamp(1.15rem, 2.2vw, 1.45rem); }
h4 { font-size: clamp(1rem, 1.8vw, 1.15rem); }

p { margin-bottom: 1rem; color: var(--text-secondary); }

ul, ol { list-style: none; }

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

input, button, textarea, select {
  font: inherit;
}

::selection {
  background: var(--primary);
  color: #fff;
}

.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;
}

/* ============ HEADER ============ */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: var(--glass-bg);
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), box-shadow var(--transition);
}

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

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  height: 100%;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  color: var(--text);
  font-weight: 800;
}

.logo svg {
  transition: transform var(--transition);
}

.logo:hover svg {
  transform: rotate(-8deg) scale(1.08);
}

.logo-text {
  font-size: 1.15rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  white-space: nowrap;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.nav-list a {
  display: block;
  padding: 6px 10px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  position: relative;
  white-space: nowrap;
  transition: color var(--transition), background var(--transition);
}

.nav-list a::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 2px;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

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

.nav-list a:hover::after {
  transform: scaleX(1);
}

.search-form {
  display: flex;
  align-items: center;
  margin-left: auto;
  background: var(--bg-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 3px 3px 16px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.search-form:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}

.search-form input {
  border: none;
  background: transparent;
  outline: none;
  color: var(--text);
  font-size: 0.875rem;
  width: 180px;
  padding: 6px 0;
}

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

.search-form button {
  padding: 7px 18px;
  border-radius: 999px;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  transition: transform var(--transition), box-shadow var(--transition);
}

.search-form button:hover {
  transform: scale(1.04);
  box-shadow: 0 4px 14px rgba(233, 69, 96, 0.4);
}

#menu-toggle,
#dark-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  color: var(--text-secondary);
  background: var(--bg-muted);
  border: 1px solid var(--border);
  transition: all var(--transition);
  flex-shrink: 0;
}

#menu-toggle:hover,
#dark-toggle:hover {
  color: var(--primary);
  border-color: var(--primary);
  transform: translateY(-2px);
}

#menu-toggle {
  display: none;
}

/* ============ MAIN ============ */
main {
  padding-top: var(--header-h);
}

main > section,
main > nav {
  max-width: 1280px;
  margin: 0 auto;
  padding: 56px 20px;
}

main > nav {
  padding-top: 20px;
  padding-bottom: 0;
}

/* ============ HERO ============ */
#hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
  padding-top: 64px;
  padding-bottom: 64px;
  position: relative;
}

#hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
  opacity: 0.04;
  border-radius: var(--radius-xl);
  pointer-events: none;
  z-index: -1;
}

.hero-content {
  animation: fadeUp 0.8s ease both;
}

.hero-content h1 {
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--text) 0%, var(--primary) 120%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  font-size: 1.02rem;
  color: var(--text-secondary);
  margin-bottom: 14px;
}

.hero-lead strong {
  color: var(--primary);
  font-weight: 700;
}

.hero-sub {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 30px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 6px 20px rgba(233, 69, 96, 0.3);
}

.btn-primary:hover {
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(233, 69, 96, 0.45);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border-strong);
}

.btn-secondary:hover {
  color: var(--primary);
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.hero-stats li {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 10px;
  text-align: center;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.hero-stats li:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.stat-num {
  display: block;
  font-size: clamp(1.25rem, 2.4vw, 1.7rem);
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}

.stat-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.hero-banner {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 600 / 340;
  background: var(--gradient-hero);
  animation: fadeUp 0.8s 0.15s ease both;
}

.banner-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.7s ease;
  pointer-events: none;
}

.banner-slide.active {
  opacity: 1;
  pointer-events: auto;
}

.banner-slide svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.banner-dots {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 5;
}

.banner-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.4);
  transition: all var(--transition);
}

.banner-dot.active {
  width: 28px;
  background: var(--primary);
}

.banner-dot:hover {
  background: rgba(255, 255, 255, 0.75);
}

/* ============ BREADCRUMB ============ */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 6px;
}

.breadcrumb li:not(:last-child)::after {
  content: "/";
  color: var(--text-muted);
  opacity: 0.6;
}

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

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

.breadcrumb [aria-current="page"] {
  color: var(--primary);
  font-weight: 600;
}

/* ============ SECTIONS ============ */
section > h2 {
  margin-bottom: 24px;
  position: relative;
  padding-left: 18px;
}

section > h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.15em;
  bottom: 0.15em;
  width: 5px;
  border-radius: 999px;
  background: var(--gradient-primary);
}

section h3 {
  margin: 32px 0 12px;
  color: var(--text);
}

section h4 {
  margin: 20px 0 8px;
  color: var(--text-secondary);
}

section p {
  margin-bottom: 14px;
}

section ul:not([class]) {
  margin: 12px 0 20px;
  padding-left: 0;
}

section ul:not([class]) li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

section ul:not([class]) li::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gradient-primary);
  transform: translateY(-50%);
}

/* ============ PRODUCTS / CARDS ============ */
#products > p {
  max-width: 760px;
}

#products h3 {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  margin: 28px 0 0;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

#products h3:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

#products h4 {
  margin-top: 18px;
  color: var(--primary);
  font-size: 1rem;
}

#products p {
  max-width: 900px;
}

/* ============ SOLUTIONS ============ */
#solutions h3 {
  padding-left: 16px;
  border-left: 4px solid var(--primary);
  border-radius: 2px;
}

#solutions h4 {
  display: inline-block;
  padding: 4px 14px;
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
}

/* ============ CASES ============ */
.testimonials {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.testimonials li {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

.testimonials li::before {
  content: "\201C";
  position: absolute;
  top: -10px;
  right: 14px;
  font-size: 5rem;
  line-height: 1;
  color: var(--primary);
  opacity: 0.12;
  font-family: Georgia, serif;
}

.testimonials li:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.testimonials blockquote {
  font-size: 0.95rem;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.7;
}

.testimonials cite {
  font-style: normal;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ============ NEWS ============ */
.news-item {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 26px;
  margin-bottom: 18px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

.news-item::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--gradient-primary);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition);
}

.news-item:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.news-item:hover::after {
  transform: scaleY(1);
}

.news-item h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.news-item time {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--primary);
  background: var(--primary-soft);
  padding: 2px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
  font-weight: 600;
}

.news-item p {
  margin: 0;
  font-size: 0.92rem;
}

/* ============ ARTICLES ============ */
.article-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 26px;
  margin-bottom: 18px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.article-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.article-item h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.article-item time {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.article-item p {
  font-size: 0.92rem;
  margin-bottom: 14px;
}

.article-item a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary);
  transition: gap var(--transition), color var(--transition);
}

.article-item a::after {
  content: "→";
  transition: transform var(--transition);
}

.article-item a:hover {
  gap: 10px;
}

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

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

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

.faq-item summary {
  padding: 18px 24px;
  font-weight: 600;
  font-size: 0.98rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: background var(--transition), color var(--transition);
  position: relative;
}

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

.faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1;
  transition: transform var(--transition), background var(--transition), color var(--transition);
}

.faq-item[open] summary::after {
  content: "−";
  background: var(--gradient-primary);
  color: #fff;
  transform: rotate(180deg);
}

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

.faq-item p {
  padding: 0 24px 20px;
  margin: 0;
  font-size: 0.92rem;
  animation: fadeUp 0.35s ease both;
}

/* ============ HOWTO ============ */
#howto h3 {
  color: var(--primary);
}

#howto h4 {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  background: var(--bg-muted);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--primary);
  font-size: 1rem;
  margin-top: 24px;
}

#howto > ul:not([class]) {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

#howto > ul:not([class]) li {
  padding-left: 28px;
}

#howto > ul:not([class]) li::before {
  content: "✓";
  width: auto;
  height: auto;
  border-radius: 0;
  background: none;
  color: var(--primary);
  font-weight: 700;
  font-size: 0.9rem;
  top: 0;
  transform: none;
  left: 4px;
}

/* ============ CONTACT ============ */
.contact-info {
  font-style: normal;
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px 28px;
  margin: 20px 0;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}

.contact-info h3 {
  margin-top: 0;
}

.contact-info ul {
  display: grid;
  gap: 10px;
}

.contact-info li {
  padding-left: 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.contact-info li::before {
  display: none;
}

.contact-info a {
  font-weight: 600;
  word-break: break-all;
}

#contact > ul:not([class]) {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 20px;
}

#contact > ul:not([class]) li {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 18px 16px 44px;
  margin: 0;
  font-size: 0.9rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

#contact > ul:not([class]) li::before {
  content: "★";
  left: 16px;
  top: 50%;
  width: auto;
  height: auto;
  border-radius: 0;
  background: none;
  color: var(--primary);
  font-size: 0.95rem;
  transform: translateY(-50%);
}

#contact > ul:not([class]) li:hover {
  transform: translateY(-3px);
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

/* ============ SITEMAP ============ */
.sitemap-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.sitemap-list li {
  padding: 0;
}

.sitemap-list li::before {
  display: none;
}

.sitemap-list a {
  display: block;
  padding: 12px 18px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.sitemap-list a:hover {
  color: #fff;
  background: var(--gradient-primary);
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(233, 69, 96, 0.35);
}

/* ============ FRIEND LINKS ============ */
.friend-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.friend-links li {
  padding: 0;
}

.friend-links li::before {
  display: none;
}

.friend-links a {
  display: inline-block;
  padding: 8px 20px;
  background: var(--bg-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.friend-links a:hover {
  color: var(--primary);
  border-color: var(--primary);
  background: var(--primary-soft);
  transform: translateY(-2px);
}

/* ============ FOOTER ============ */
#site-footer {
  background: var(--gradient-hero);
  color: #cfd2e6;
  margin-top: 40px;
  position: relative;
  overflow: hidden;
}

#site-footer::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(233, 69, 96, 0.18), transparent 70%);
  pointer-events: none;
}

#site-footer::after {
  content: "";
  position: absolute;
  bottom: -40%;
  left: -10%;
  width: 460px;
  height: 460px;
  background: radial-gradient(circle, rgba(74, 127, 181, 0.18), transparent 70%);
  pointer-events: none;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 56px 20px 32px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 36px;
  position: relative;
  z-index: 1;
}

.footer-inner section h2 {
  font-size: 1rem;
  color: #fff;
  margin-bottom: 14px;
  padding-left: 14px;
  position: relative;
}

.footer-inner section h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.2em;
  bottom: 0.2em;
  width: 4px;
  border-radius: 999px;
  background: var(--gradient-primary);
}

.footer-inner section p {
  font-size: 0.86rem;
  color: #a9adc9;
  line-height: 1.8;
  margin: 0;
}

.footer-inner section ul {
  display: grid;
  gap: 8px;
}

.footer-inner section ul li {
  font-size: 0.86rem;
  color: #a9adc9;
  padding: 0;
}

.footer-inner section ul li::before {
  display: none;
}

.footer-inner section a {
  color: #a9adc9;
  transition: color var(--transition), padding-left var(--transition);
  display: inline-block;
}

.footer-inner section a:hover {
  color: var(--primary);
  padding-left: 5px;
}

.footer-copy {
  text-align: center;
  padding: 20px;
  font-size: 0.8rem;
  color: #8a8fb0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  z-index: 1;
  margin: 0;
}

/* ============ BACK TO TOP ============ */
#back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(233, 69, 96, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all var(--transition);
  z-index: 999;
}

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

#back-to-top:hover {
  transform: translateY(-4px) scale(1.06);
  box-shadow: 0 12px 32px rgba(233, 69, 96, 0.55);
}

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

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

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* ============ RESPONSIVE ============ */
@media (max-width: 1180px) {
  .nav-list a {
    padding: 6px 7px;
    font-size: 0.82rem;
  }
  .search-form input {
    width: 130px;
  }
}

@media (max-width: 1024px) {
  #hero {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .hero-banner {
    max-width: 680px;
    margin: 0 auto;
    width: 100%;
  }
  .nav-list {
    display: none;
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 20px 20px;
    gap: 4px;
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
  }
  .nav-list.open {
    display: flex;
    animation: fadeUp 0.3s ease both;
  }
  .nav-list a {
    padding: 12px 16px;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
  }
  .nav-list a::after {
    display: none;
  }
  #menu-toggle {
    display: inline-flex;
  }
  .search-form {
    order: 5;
    flex: 1;
    min-width: 0;
  }
  .search-form input {
    width: 100%;
    min-width: 0;
  }
}

@media (max-width: 768px) {
  :root {
    --header-h: 62px;
  }
  body {
    font-size: 15px;
  }
  main > section,
  main > nav {
    padding: 40px 16px;
  }
  #hero {
    padding-top: 40px;
    padding-bottom: 40px;
  }
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-actions {
    gap: 10px;
  }
  .btn-primary,
  .btn-secondary {
    flex: 1;
    min-width: 140px;
    padding: 12px 22px;
    font-size: 0.9rem;
  }
  .search-form {
    padding-left: 12px;
  }
  .search-form button {
    padding: 7px 14px;
    font-size: 0.8rem;
  }
  .logo-text {
    font-size: 1rem;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 40px 16px 24px;
  }
  .testimonials {
    grid-template-columns: 1fr;
  }
  .news-item,
  .article-item {
    padding: 20px;
  }
  .faq-item summary {
    padding: 15px 18px;
    font-size: 0.92rem;
  }
  .faq-item p {
    padding: 0 18px 16px;
  }
  #back-to-top {
    right: 16px;
    bottom: 16px;
    width: 44px;
    height: 44px;
  }
}

@media (max-width: 480px) {
  .hero-stats {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  .hero-stats li {
    padding: 12px 6px;
  }
  .stat-label {
    font-size: 0.7rem;
  }
  .header-inner {
    padding: 0 12px;
    gap: 8px;
  }
  .search-form button {
    padding: 7px 12px;
  }
  .banner-dots {
    bottom: 10px;
  }
  #contact > ul:not([class]) {
    grid-template-columns: 1fr;
  }
  .sitemap-list {
    grid-template-columns: 1fr 1fr;
  }
}

@media print {
  #site-header,
  #back-to-top,
  .hero-banner,
  .banner-dots {
    display: none !important;
  }
  main {
    padding-top: 0;
  }
  body {
    background: #fff;
    color: #000;
  }
}
</style>