:root {
  --brand: #f5a623;
  --brand-dark: #d98c0f;
  --brand-light: #ffd479;
  --brand-glow: rgba(245, 166, 35, 0.35);
  --bg: #ffffff;
  --bg-alt: #fafafa;
  --bg-glass: rgba(255, 255, 255, 0.72);
  --text: #1f2328;
  --text-sub: #5b636e;
  --border: #e6e8eb;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.1);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}

body.dark {
  --bg: #16181d;
  --bg-alt: #1e2128;
  --bg-glass: rgba(30, 33, 40, 0.72);
  --text: #e8eaed;
  --text-sub: #a6adb8;
  --border: #2c3038;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.55);
  --brand-glow: rgba(245, 166, 35, 0.25);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 9999;
  background: var(--brand);
  color: #fff;
  padding: 10px 20px;
  border-radius: 0 0 8px 0;
  font-weight: 600;
}

.skip-link:focus {
  left: 0;
}

/* ============ HEADER ============ */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  backdrop-filter: blur(18px) saturate(180%);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), border-color var(--transition);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 20px;
  white-space: nowrap;
  letter-spacing: -0.3px;
  transition: transform var(--transition);
}

.logo:hover {
  transform: scale(1.02);
}

.logo svg {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  box-shadow: 0 4px 14px var(--brand-glow);
  transition: box-shadow var(--transition), transform var(--transition);
}

.logo:hover svg {
  box-shadow: 0 6px 22px var(--brand-glow);
  transform: rotate(-6deg);
}

nav.main-nav {
  display: flex;
  gap: 6px;
  font-size: 15px;
}

nav.main-nav a {
  color: var(--text-sub);
  padding: 8px 14px;
  border-radius: 999px;
  position: relative;
  transition: color var(--transition), background var(--transition);
}

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

nav.main-nav a:hover,
nav.main-nav a.active {
  color: var(--brand-dark);
  background: rgba(245, 166, 35, 0.08);
}

nav.main-nav a:hover::after,
nav.main-nav a.active::after {
  width: 60%;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 10px;
}

.search-box {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 5px 4px 16px;
  background: var(--bg-alt);
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.search-box:focus-within {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(245, 166, 35, 0.12);
  background: var(--bg);
}

.search-box input {
  border: none;
  background: transparent;
  color: var(--text);
  outline: none;
  width: 140px;
  font-size: 14px;
  font-family: inherit;
}

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

.search-box button {
  border: none;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 100%);
  color: #fff;
  border-radius: 999px;
  padding: 6px 14px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  transition: transform var(--transition), box-shadow var(--transition);
}

.search-box button:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--brand-glow);
}

.icon-btn,
.mobile-toggle {
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--text);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  transition: all var(--transition);
}

.icon-btn:hover,
.mobile-toggle:hover {
  border-color: var(--brand);
  color: var(--brand);
  transform: rotate(15deg);
  background: rgba(245, 166, 35, 0.08);
}

.mobile-toggle {
  display: none;
  border-radius: 12px;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  border-top: 1px solid var(--border);
  background: var(--bg);
  padding: 8px 20px 16px;
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mobile-menu a {
  padding: 12px 8px;
  border-bottom: 1px solid var(--border);
  color: var(--text-sub);
  border-radius: 8px;
  transition: color var(--transition), background var(--transition), padding-left var(--transition);
}

.mobile-menu a:hover {
  color: var(--brand-dark);
  background: rgba(245, 166, 35, 0.06);
  padding-left: 16px;
}

.mobile-menu a:last-child {
  border-bottom: none;
}

.mobile-menu.open {
  display: flex;
}

/* ============ BREADCRUMB ============ */
.breadcrumb {
  font-size: 13px;
  color: var(--text-sub);
  padding: 16px 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
}

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

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

.breadcrumb span {
  margin: 0 4px;
  opacity: 0.6;
}

/* ============ HERO ============ */
.hero {
  background: linear-gradient(135deg, #fff7e6 0%, #ffe3b3 45%, #fdf0d5 100%);
  padding: 56px 0 64px;
  position: relative;
  overflow: hidden;
  transition: background var(--transition);
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.55;
  pointer-events: none;
}

.hero::before {
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(245, 166, 35, 0.5), transparent 70%);
  top: -140px;
  right: -100px;
  animation: floatBlob 14s ease-in-out infinite;
}

.hero::after {
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(255, 196, 87, 0.55), transparent 70%);
  bottom: -160px;
  left: -80px;
  animation: floatBlob 18s ease-in-out infinite reverse;
}

@keyframes floatBlob {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(30px, 24px) scale(1.08);
  }
}

body.dark .hero {
  background: linear-gradient(135deg, #241f14 0%, #1e2128 55%, #1a1d24 100%);
}

body.dark .hero::before {
  background: radial-gradient(circle, rgba(245, 166, 35, 0.24), transparent 70%);
}

body.dark .hero::after {
  background: radial-gradient(circle, rgba(217, 140, 15, 0.22), transparent 70%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 40px;
  line-height: 1.25;
  margin-bottom: 18px;
  font-weight: 800;
  letter-spacing: -0.8px;
  animation: fadeUp 0.7s ease both;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(120deg, var(--brand) 0%, var(--brand-dark) 60%, #ff8c42 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.hero .lead {
  font-size: 17px;
  color: var(--text-sub);
  margin-bottom: 26px;
  animation: fadeUp 0.7s 0.1s ease both;
}

.hero .cta-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  animation: fadeUp 0.7s 0.2s ease both;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
  cursor: pointer;
  border: none;
  font-family: inherit;
  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: linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 100%);
  color: #fff;
  box-shadow: 0 8px 22px var(--brand-glow);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 30px var(--brand-glow);
}

.btn-primary:active {
  transform: translateY(-1px);
}

.btn-ghost {
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  border-color: var(--brand);
  color: var(--brand-dark);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.hero-stats {
  display: flex;
  gap: 36px;
  margin-top: 34px;
  flex-wrap: wrap;
  animation: fadeUp 0.7s 0.3s ease both;
}

.hero-stats .stat strong {
  display: block;
  font-size: 30px;
  font-weight: 800;
  background: linear-gradient(120deg, var(--brand) 0%, var(--brand-dark) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  line-height: 1.2;
  letter-spacing: -0.5px;
}

.hero-stats .stat span {
  font-size: 13px;
  color: var(--text-sub);
}

/* ============ CAROUSEL ============ */
.carousel {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--bg);
  border: 1px solid var(--border);
  animation: fadeUp 0.8s 0.15s ease both;
}

.slides {
  position: relative;
  height: 310px;
}

.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: scale(1.04);
  transition: opacity 0.7s ease, transform 0.7s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slide.active {
  opacity: 1;
  transform: scale(1);
}

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

.carousel-dots {
  position: absolute;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  padding: 6px 12px;
  background: rgba(0, 0, 0, 0.18);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-radius: 999px;
}

.carousel-dots button {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.55);
  cursor: pointer;
  padding: 0;
  transition: all var(--transition);
}

.carousel-dots button:hover {
  background: rgba(255, 255, 255, 0.85);
}

.carousel-dots button.active {
  background: var(--brand);
  width: 24px;
  border-radius: 5px;
  box-shadow: 0 0 10px var(--brand-glow);
}

/* ============ SECTIONS ============ */
section {
  padding: 64px 0;
  transition: background var(--transition);
}

section.alt {
  background: var(--bg-alt);
}

.section-head {
  text-align: center;
  margin-bottom: 44px;
}

.section-head h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.6px;
  line-height: 1.35;
}

.section-head p {
  color: var(--text-sub);
  font-size: 16px;
  max-width: 760px;
  margin: 0 auto;
}

.section-head .tag {
  display: inline-block;
  background: linear-gradient(135deg, rgba(245, 166, 35, 0.16), rgba(217, 140, 15, 0.1));
  color: var(--brand-dark);
  font-size: 13px;
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
  font-weight: 700;
  letter-spacing: 0.5px;
  border: 1px solid rgba(245, 166, 35, 0.22);
}

body.dark .section-head .tag {
  color: var(--brand-light);
}

/* ============ GRIDS ============ */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

/* ============ CARDS ============ */
.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--brand-dark));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(245, 166, 35, 0.35);
}

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

.card h3 {
  font-size: 19px;
  margin-bottom: 10px;
  font-weight: 700;
  line-height: 1.4;
}

.card h4 {
  font-size: 15px;
  margin-bottom: 8px;
  margin-top: 16px;
  color: var(--brand-dark);
  font-weight: 700;
}

body.dark .card h4 {
  color: var(--brand-light);
}

.card h4:first-child {
  margin-top: 0;
}

.card p {
  color: var(--text-sub);
  font-size: 15px;
}

.card .icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(245, 166, 35, 0.16), rgba(217, 140, 15, 0.08));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover .icon {
  transform: scale(1.08) rotate(-4deg);
  box-shadow: 0 8px 20px var(--brand-glow);
}

/* ============ PROSE ============ */
.prose p {
  margin-bottom: 16px;
  color: var(--text-sub);
  font-size: 15.5px;
}

.prose h3 {
  font-size: 22px;
  margin: 26px 0 12px;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.prose h3:first-child {
  margin-top: 0;
}

.prose h4 {
  font-size: 17px;
  margin: 18px 0 8px;
  font-weight: 700;
}

.prose strong {
  color: var(--text);
  font-weight: 700;
}

.prose ul {
  margin: 0 0 16px 0;
  padding-left: 4px;
}

.prose li {
  margin-bottom: 10px;
  color: var(--text-sub);
  padding-left: 24px;
  position: relative;
}

.prose li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 11px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.14);
}

.prose a {
  color: var(--brand-dark);
  font-weight: 600;
  border-bottom: 1px dashed rgba(245, 166, 35, 0.5);
  transition: color var(--transition), border-color var(--transition);
}

.prose a:hover {
  color: var(--brand);
  border-color: var(--brand);
}

body.dark .prose a {
  color: var(--brand-light);
}

/* ============ ARTICLE LIST ============ */
.article-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.article {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
}

.article:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(245, 166, 35, 0.35);
}

.article .meta {
  font-size: 12.5px;
  color: var(--text-sub);
  margin-bottom: 10px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.article .meta .cat {
  color: var(--brand-dark);
  font-weight: 700;
  background: rgba(245, 166, 35, 0.1);
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
}

body.dark .article .meta .cat {
  color: var(--brand-light);
}

.article h3 {
  font-size: 18px;
  margin-bottom: 10px;
  font-weight: 700;
  line-height: 1.45;
  transition: color var(--transition);
}

.article:hover h3 {
  color: var(--brand-dark);
}

body.dark .article:hover h3 {
  color: var(--brand-light);
}

.article p {
  color: var(--text-sub);
  font-size: 14.5px;
  flex: 1;
}

.article a.read {
  color: var(--brand-dark);
  font-weight: 700;
  font-size: 14px;
  margin-top: 14px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition), color var(--transition);
}

.article a.read:hover {
  gap: 10px;
  color: var(--brand);
}

body.dark .article a.read {
  color: var(--brand-light);
}

/* ============ FAQ ============ */
.faq-item {
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 12px;
  background: var(--bg);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.faq-item:hover {
  border-color: rgba(245, 166, 35, 0.35);
}

.faq-item.open {
  border-color: var(--brand);
  box-shadow: 0 6px 24px rgba(245, 166, 35, 0.1);
}

.faq-q {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 18px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-family: inherit;
  transition: color var(--transition);
}

.faq-q:hover {
  color: var(--brand-dark);
}

body.dark .faq-q:hover {
  color: var(--brand-light);
}

.faq-q .plus {
  color: var(--brand);
  font-size: 22px;
  transition: transform var(--transition);
  flex-shrink: 0;
  line-height: 1;
  font-weight: 400;
}

.faq-item.open .faq-q .plus {
  transform: rotate(45deg);
}

.faq-a {
  padding: 0 22px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.open .faq-a {
  max-height: 500px;
  padding: 0 22px 20px;
}

.faq-a p {
  color: var(--text-sub);
  font-size: 14.5px;
}

/* ============ HOWTO ============ */
.howto-step {
  display: flex;
  gap: 18px;
  margin-bottom: 18px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.howto-step:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow);
  border-color: rgba(245, 166, 35, 0.35);
}

.howto-step .num {
  flex: 0 0 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 17px;
  box-shadow: 0 6px 16px var(--brand-glow);
  transition: transform var(--transition);
}

.howto-step:hover .num {
  transform: scale(1.1) rotate(-8deg);
}

.howto-step h4 {
  margin-bottom: 6px;
  font-size: 17px;
  font-weight: 700;
}

.howto-step p {
  color: var(--text-sub);
  font-size: 14.5px;
}

/* ============ TEAM ============ */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.team-card {
  text-align: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px 18px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.team-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(245, 166, 35, 0.35);
}

.team-card .avatar {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  margin: 0 auto 14px;
  overflow: hidden;
  box-shadow: 0 6px 18px var(--brand-glow);
  transition: transform var(--transition);
}

.team-card:hover .avatar {
  transform: scale(1.06);
}

.team-card h4 {
  font-size: 16px;
  margin-bottom: 4px;
  font-weight: 700;
}

.team-card p {
  font-size: 13px;
  color: var(--text-sub);
}

/* ============ TESTIMONIAL ============ */
.testimonial {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.testimonial::before {
  content: "\201C";
  position: absolute;
  top: 6px;
  right: 22px;
  font-size: 64px;
  line-height: 1;
  color: rgba(245, 166, 35, 0.18);
  font-family: Georgia, serif;
  pointer-events: none;
}

.testimonial:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(245, 166, 35, 0.35);
}

.testimonial p {
  font-size: 15px;
  color: var(--text-sub);
  margin-bottom: 16px;
  font-style: italic;
  position: relative;
  z-index: 1;
}

.testimonial .who {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--brand-dark);
  font-style: normal;
}

body.dark .testimonial .who {
  color: var(--brand-light);
}

/* ============ CONTACT ============ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.contact-info li {
  list-style: none;
  margin-bottom: 14px;
  color: var(--text-sub);
  font-size: 15px;
  padding-left: 18px;
  position: relative;
}

.contact-info li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.14);
}

.contact-info li strong {
  color: var(--text);
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.3px;
  margin-bottom: 2px;
}

.contact-form {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.contact-form:focus-within {
  border-color: rgba(245, 166, 35, 0.4);
  box-shadow: var(--shadow-lg);
}

.contact-form h3 {
  margin-bottom: 16px;
  font-size: 20px;
  font-weight: 700;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-alt);
  color: var(--text);
  margin-bottom: 14px;
  font-size: 14.5px;
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--text-sub);
  opacity: 0.7;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--brand);
  background: var(--bg);
  box-shadow: 0 0 0 4px rgba(245, 166, 35, 0.12);
}

.contact-form textarea {
  min-height: 120px;
  resize: vertical;
}

.contact-form .btn {
  width: 100%;
}

/* ============ NOTICE ============ */
.notice {
  background: linear-gradient(135deg, rgba(245, 166, 35, 0.1), rgba(217, 140, 15, 0.06));
  border-left: 4px solid var(--brand);
  padding: 16px 20px;
  border-radius: 10px;
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 16px;
  transition: background var(--transition);
}

/* ============ ANCHOR NAV ============ */
.anchor-nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin: 28px 0 8px;
}

.anchor-nav a {
  font-size: 13.5px;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  color: var(--text-sub);
  transition: all var(--transition);
}

.anchor-nav a:hover {
  border-color: var(--brand);
  color: var(--brand-dark);
  background: rgba(245, 166, 35, 0.08);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(245, 166, 35, 0.15);
}

body.dark .anchor-nav a:hover {
  color: var(--brand-light);
}

/* ============ REVEAL ANIMATION ============ */
.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.visible {
  opacity: 1;
  transform: none;
}

/* ============ FOOTER ============ */
footer.site-footer {
  background: linear-gradient(180deg, #1b1e24 0%, #14161b 100%);
  color: #c4c9d1;
  padding: 56px 0 26px;
  font-size: 14px;
  position: relative;
}

footer.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--brand), var(--brand-dark), transparent);
  opacity: 0.7;
}

footer.site-footer a {
  color: #c4c9d1;
  transition: color var(--transition), padding-left var(--transition);
}

footer.site-footer a:hover {
  color: var(--brand);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 36px;
  margin-bottom: 40px;
}

.footer-grid h4 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 16px;
  font-weight: 700;
  position: relative;
  padding-bottom: 10px;
}

.footer-grid h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: linear-gradient(90deg, var(--brand), var(--brand-dark));
  border-radius: 2px;
}

.footer-grid ul {
  list-style: none;
}

.footer-grid li {
  margin-bottom: 9px;
}

.footer-grid p {
  color: #a0a6b0;
  line-height: 1.7;
}

.footer-grid li a:hover {
  color: var(--brand);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid #2c3038;
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: #8b919b;
}

/* ============ BACK TOP ============ */
.back-top {
  position: fixed;
  right: 24px;
  bottom: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 100%);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 20px;
  box-shadow: 0 8px 24px var(--brand-glow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px) scale(0.9);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition), box-shadow var(--transition);
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.back-top:hover {
  transform: translateY(-4px) scale(1.06);
  box-shadow: 0 14px 32px var(--brand-glow);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .hero h1 {
    font-size: 34px;
  }

  .hero-grid {
    gap: 32px;
  }

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

@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .grid-3,
  .grid-2,
  .article-list,
  .team-grid,
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }

  nav.main-nav {
    display: none;
  }

  .search-box {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }

  .hero h1 {
    font-size: 30px;
  }

  .hero-stats {
    gap: 28px;
  }

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

@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }

  .grid-3,
  .grid-2,
  .article-list,
  .footer-grid,
  .team-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 40px 0 48px;
  }

  .hero h1 {
    font-size: 26px;
    letter-spacing: -0.4px;
  }

  .hero .lead {
    font-size: 15.5px;
  }

  .hero-stats {
    gap: 20px;
  }

  .hero-stats .stat strong {
    font-size: 24px;
  }

  .slides {
    height: 230px;
  }

  .section-head h2 {
    font-size: 24px;
  }

  .section-head p {
    font-size: 15px;
  }

  section {
    padding: 48px 0;
  }

  .card,
  .article,
  .contact-form {
    padding: 22px;
  }

  .howto-step {
    padding: 18px;
    gap: 14px;
  }

  .howto-step .num {
    flex: 0 0 36px;
    height: 36px;
    font-size: 15px;
  }

  .btn {
    padding: 11px 22px;
    font-size: 14.5px;
  }

  .back-top {
    right: 16px;
    bottom: 18px;
    width: 44px;
    height: 44px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }

  .faq-q {
    padding: 16px 18px;
    font-size: 15px;
  }

  .faq-a {
    padding: 0 18px;
  }

  .faq-item.open .faq-a {
    padding: 0 18px 18px;
  }
}

@media (max-width: 400px) {
  .hero h1 {
    font-size: 23px;
  }

  .logo span {
    font-size: 17px;
  }

  .logo svg {
    width: 32px;
    height: 32px;
  }
}

/* ============ ACCESSIBILITY & MOTION ============ */
@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;
  }
}

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

::selection {
  background: rgba(245, 166, 35, 0.3);
  color: var(--text);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-alt);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--brand), var(--brand-dark));
  border-radius: 10px;
  border: 2px solid var(--bg-alt);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--brand-dark);
}