/* ===================================================
   17C 品牌官网 - 主样式文件
   www.tl91cp2.cn
   =================================================== */

/* ---- CSS Variables ---- */
:root {
  --primary: #6c3fff;
  --primary-dark: #4b1fe8;
  --secondary: #ff4d9e;
  --accent: #00e5ff;
  --dark: #0a0a1a;
  --dark-2: #12122a;
  --dark-3: #1a1a3a;
  --text: #e8e8f8;
  --text-muted: #9090b0;
  --white: #ffffff;
  --gradient: linear-gradient(135deg, #6c3fff 0%, #ff4d9e 100%);
  --gradient-dark: linear-gradient(135deg, #0a0a1a 0%, #1a1a3a 100%);
  --shadow: 0 8px 32px rgba(108, 63, 255, 0.3);
  --shadow-lg: 0 20px 60px rgba(108, 63, 255, 0.4);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  background: var(--dark);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--secondary); }

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

ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--white);
}

/* ---- Utility Classes ---- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 80px 0; }
.section-sm { padding: 50px 0; }
.text-center { text-align: center; }
.text-gradient {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: var(--gradient);
  color: var(--white);
  box-shadow: var(--shadow);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  color: var(--white);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.3);
}
.btn-outline:hover {
  border-color: var(--primary);
  background: rgba(108,63,255,0.15);
  color: var(--white);
}
.tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  background: rgba(108,63,255,0.2);
  color: var(--accent);
  border: 1px solid rgba(0,229,255,0.3);
}
.section-label {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
  display: block;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 16px;
}
.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 50px;
}

/* ---- Animations ---- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(108,63,255,0.4); }
  50% { box-shadow: 0 0 40px rgba(108,63,255,0.8); }
}
@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.animate-fade-up { animation: fadeInUp 0.8s ease forwards; }
.animate-float { animation: float 4s ease-in-out infinite; }

/* ---- Header / Navigation ---- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(108,63,255,0.2);
  transition: var(--transition);
}
.site-header.scrolled {
  background: rgba(10, 10, 26, 0.97);
  box-shadow: 0 4px 30px rgba(0,0,0,0.5);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  padding: 0 20px;
  max-width: 1200px;
  margin: 0 auto;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 900;
  color: white;
  animation: pulse-glow 3s ease-in-out infinite;
}
.logo-text {
  font-size: 1.4rem;
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  transition: var(--transition);
  white-space: nowrap;
}
.main-nav a:hover, .main-nav a.active {
  background: rgba(108,63,255,0.2);
  color: var(--white);
}
.nav-cta {
  background: var(--gradient) !important;
  color: white !important;
  padding: 8px 20px !important;
  border-radius: 50px !important;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: var(--shadow); }

/* ---- Search Bar ---- */
.search-bar-wrap {
  background: rgba(26, 26, 58, 0.9);
  border-bottom: 1px solid rgba(108,63,255,0.15);
  padding: 10px 0;
}
.search-bar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.search-bar-inner form {
  display: flex;
  align-items: center;
  gap: 0;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(108,63,255,0.3);
  border-radius: 50px;
  overflow: hidden;
  flex: 1;
  max-width: 600px;
}
.search-bar-inner input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 10px 20px;
  color: var(--text);
  font-size: 0.9rem;
}
.search-bar-inner input::placeholder { color: var(--text-muted); }
.search-bar-inner button {
  background: var(--gradient);
  border: none;
  padding: 10px 20px;
  color: white;
  cursor: pointer;
  font-size: 0.9rem;
  transition: var(--transition);
}
.search-bar-inner button:hover { opacity: 0.85; }
.search-hot-tags { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.search-hot-tags span { font-size: 0.8rem; color: var(--text-muted); }
.search-hot-tags a {
  font-size: 0.8rem;
  color: var(--text-muted);
  background: rgba(255,255,255,0.05);
  padding: 3px 10px;
  border-radius: 50px;
  border: 1px solid rgba(255,255,255,0.08);
}
.search-hot-tags a:hover { color: var(--accent); border-color: var(--accent); }

/* ---- Mobile Menu ---- */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---- Hero Section ---- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 130px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero-banner.jpg');
  background-size: cover;
  background-position: center;
  filter: brightness(0.35);
  z-index: 0;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,10,26,0.8) 0%, rgba(108,63,255,0.2) 50%, rgba(10,10,26,0.9) 100%);
  z-index: 1;
}
.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 2;
  overflow: hidden;
}
.hero-particles::before, .hero-particles::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}
.hero-particles::before {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(108,63,255,0.15) 0%, transparent 70%);
  top: 10%; right: 10%;
}
.hero-particles::after {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(255,77,158,0.12) 0%, transparent 70%);
  bottom: 20%; left: 5%;
  animation-delay: -3s;
}
.hero-content {
  position: relative;
  z-index: 3;
  max-width: 800px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(108,63,255,0.2);
  border: 1px solid rgba(108,63,255,0.4);
  border-radius: 50px;
  padding: 6px 16px;
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease forwards;
}
.hero-badge::before {
  content: '';
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse-glow 2s infinite;
}
.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease 0.1s both;
}
.hero-desc {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(232,232,248,0.8);
  margin-bottom: 40px;
  max-width: 600px;
  animation: fadeInUp 0.8s ease 0.2s both;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.3s both;
}
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 60px;
  animation: fadeInUp 0.8s ease 0.4s both;
}
.hero-stat-item { text-align: center; }
.hero-stat-num {
  font-size: 2rem;
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-stat-label { font-size: 0.85rem; color: var(--text-muted); }
.hero-scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.8rem;
}
.scroll-dot {
  width: 24px; height: 40px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 12px;
  position: relative;
}
.scroll-dot::after {
  content: '';
  position: absolute;
  top: 6px; left: 50%;
  transform: translateX(-50%);
  width: 4px; height: 8px;
  background: var(--accent);
  border-radius: 2px;
  animation: float 1.5s ease-in-out infinite;
}

/* ---- Video Section ---- */
.video-section { background: var(--dark-2); }
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.video-card {
  background: var(--dark-3);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(108,63,255,0.15);
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-8px);
  border-color: rgba(108,63,255,0.5);
  box-shadow: var(--shadow-lg);
}
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.08); }
.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.4);
  opacity: 0;
  transition: var(--transition);
}
.video-card:hover .video-play-btn { opacity: 1; }
.play-icon {
  width: 60px; height: 60px;
  background: rgba(108,63,255,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0.8);
  transition: var(--transition);
  backdrop-filter: blur(10px);
}
.video-card:hover .play-icon { transform: scale(1); }
.play-icon svg { width: 24px; height: 24px; fill: white; margin-left: 4px; }
.video-duration {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0,0,0,0.75);
  color: white;
  font-size: 0.78rem;
  padding: 2px 8px;
  border-radius: 4px;
}
.video-category {
  position: absolute;
  top: 10px;
  left: 10px;
}
.video-info { padding: 16px; }
.video-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.video-meta span { display: flex; align-items: center; gap: 4px; }
.video-meta svg { width: 14px; height: 14px; fill: currentColor; }

/* ---- Brand Story ---- */
.brand-story { background: var(--dark); }
.story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.story-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.story-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}
.story-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  border: 2px solid rgba(108,63,255,0.3);
  pointer-events: none;
}
.story-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--gradient);
  border-radius: var(--radius);
  padding: 16px 20px;
  text-align: center;
  box-shadow: var(--shadow);
}
.story-badge-num { font-size: 1.8rem; font-weight: 900; color: white; }
.story-badge-text { font-size: 0.8rem; color: rgba(255,255,255,0.8); }
.story-content h2 { margin-bottom: 20px; }
.story-content p { color: var(--text-muted); margin-bottom: 16px; }
.story-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 30px;
}
.story-value-item {
  background: rgba(108,63,255,0.08);
  border: 1px solid rgba(108,63,255,0.2);
  border-radius: var(--radius);
  padding: 16px;
  transition: var(--transition);
}
.story-value-item:hover {
  background: rgba(108,63,255,0.15);
  border-color: rgba(108,63,255,0.4);
  transform: translateY(-3px);
}
.story-value-icon { font-size: 1.5rem; margin-bottom: 8px; }
.story-value-title { font-size: 0.9rem; font-weight: 600; color: var(--white); }
.story-value-desc { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }

/* ---- Explore / Services ---- */
.explore-section { background: var(--dark-2); }
.explore-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 50px;
}
.explore-card {
  background: var(--dark-3);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  border: 1px solid rgba(108,63,255,0.15);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.explore-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient);
  transform: scaleX(0);
  transition: var(--transition);
}
.explore-card:hover::before { transform: scaleX(1); }
.explore-card:hover {
  transform: translateY(-8px);
  border-color: rgba(108,63,255,0.4);
  box-shadow: var(--shadow);
}
.explore-icon {
  width: 56px; height: 56px;
  background: rgba(108,63,255,0.15);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
  transition: var(--transition);
}
.explore-card:hover .explore-icon { background: rgba(108,63,255,0.3); transform: scale(1.1); }
.explore-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.explore-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }
.explore-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
}
.explore-link:hover { gap: 10px; }

/* ---- Create / Cases ---- */
.create-section { background: var(--dark); }
.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 50px;
}
.case-card {
  background: var(--dark-3);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(108,63,255,0.15);
  transition: var(--transition);
}
.case-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(108,63,255,0.4);
}
.case-img {
  aspect-ratio: 16/9;
  overflow: hidden;
}
.case-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.case-card:hover .case-img img { transform: scale(1.05); }
.case-body { padding: 24px; }
.case-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.case-body h3 { font-size: 1.1rem; margin-bottom: 8px; }
.case-body p { font-size: 0.88rem; color: var(--text-muted); }
.case-stats {
  display: flex;
  gap: 20px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.case-stat { text-align: center; }
.case-stat-num { font-size: 1.2rem; font-weight: 700; color: var(--accent); }
.case-stat-label { font-size: 0.75rem; color: var(--text-muted); }

/* ---- Inspire ---- */
.inspire-section { background: var(--dark-2); }
.inspire-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 50px;
}
.inspire-card {
  background: var(--dark-3);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(108,63,255,0.15);
  transition: var(--transition);
}
.inspire-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: rgba(108,63,255,0.4);
}
.inspire-img {
  aspect-ratio: 3/2;
  overflow: hidden;
}
.inspire-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.inspire-card:hover .inspire-img img { transform: scale(1.05); }
.inspire-body { padding: 20px; }
.inspire-body h3 { font-size: 1rem; margin-bottom: 8px; }
.inspire-body p { font-size: 0.85rem; color: var(--text-muted); }
.inspire-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ---- Reviews ---- */
.reviews-section { background: var(--dark); }
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 50px;
}
.review-card {
  background: var(--dark-3);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid rgba(108,63,255,0.15);
  transition: var(--transition);
  position: relative;
}
.review-card:hover {
  transform: translateY(-5px);
  border-color: rgba(108,63,255,0.4);
  box-shadow: var(--shadow);
}
.review-quote {
  font-size: 3rem;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 12px;
  opacity: 0.5;
}
.review-text {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}
.review-stars { color: #ffd700; font-size: 0.9rem; margin-bottom: 16px; }
.review-author { display: flex; align-items: center; gap: 12px; }
.review-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(108,63,255,0.4);
}
.review-name { font-size: 0.9rem; font-weight: 600; color: var(--white); }
.review-role { font-size: 0.78rem; color: var(--text-muted); }

/* ---- Partners / Trust ---- */
.trust-section { background: var(--dark-2); }
.trust-badges {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
  margin: 40px 0;
}
.trust-badge {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 16px 28px;
  text-align: center;
  transition: var(--transition);
}
.trust-badge:hover {
  background: rgba(108,63,255,0.1);
  border-color: rgba(108,63,255,0.3);
}
.trust-badge-icon { font-size: 1.8rem; margin-bottom: 6px; }
.trust-badge-text { font-size: 0.85rem; color: var(--text-muted); }

/* ---- Connect / CTA ---- */
.connect-section {
  background: var(--dark-3);
  position: relative;
  overflow: hidden;
}
.connect-section::before {
  content: '';
  position: absolute;
  top: -50%; left: -20%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(108,63,255,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.connect-inner {
  text-align: center;
  position: relative;
  z-index: 1;
}
.connect-inner h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); margin-bottom: 16px; }
.connect-inner p { color: var(--text-muted); max-width: 500px; margin: 0 auto 40px; }
.connect-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---- FAQ ---- */
.faq-section { background: var(--dark); }
.faq-list { max-width: 800px; margin: 50px auto 0; }
.faq-item {
  border: 1px solid rgba(108,63,255,0.2);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(108,63,255,0.4); }
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  cursor: pointer;
  background: var(--dark-3);
  transition: var(--transition);
  user-select: none;
}
.faq-question:hover { background: rgba(108,63,255,0.1); }
.faq-question h4 { font-size: 0.95rem; font-weight: 600; color: var(--white); }
.faq-icon {
  width: 24px; height: 24px;
  background: rgba(108,63,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
  color: var(--accent);
  font-size: 1rem;
  line-height: 1;
}
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--primary); color: white; }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  background: rgba(108,63,255,0.05);
}
.faq-item.open .faq-answer { max-height: 300px; }
.faq-answer p {
  padding: 16px 24px;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ---- Contact ---- */
.contact-section { background: var(--dark-2); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-top: 50px;
}
.contact-info h3 { font-size: 1.3rem; margin-bottom: 20px; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}
.contact-icon {
  width: 44px; height: 44px;
  background: rgba(108,63,255,0.15);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.contact-detail h4 { font-size: 0.9rem; color: var(--white); margin-bottom: 4px; }
.contact-detail p { font-size: 0.85rem; color: var(--text-muted); }
.map-placeholder {
  background: var(--dark-3);
  border-radius: var(--radius-lg);
  height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(108,63,255,0.2);
  margin-top: 20px;
  position: relative;
  overflow: hidden;
}
.map-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(108,63,255,0.1) 0%, rgba(255,77,158,0.05) 100%);
}
.map-placeholder span { color: var(--text-muted); font-size: 0.9rem; position: relative; z-index: 1; }
.contact-form { background: var(--dark-3); border-radius: var(--radius-lg); padding: 32px; border: 1px solid rgba(108,63,255,0.15); }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.85rem; color: var(--text-muted); margin-bottom: 8px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(108,63,255,0.2);
  border-radius: var(--radius);
  padding: 12px 16px;
  color: var(--text);
  font-size: 0.9rem;
  transition: var(--transition);
  outline: none;
  font-family: inherit;
}
.form-group input:focus, .form-group textarea:focus {
  border-color: var(--primary);
  background: rgba(108,63,255,0.08);
}
.form-group textarea { resize: vertical; min-height: 100px; }

/* ---- Footer ---- */
.site-footer {
  background: var(--dark);
  border-top: 1px solid rgba(108,63,255,0.2);
  padding: 60px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.7; }
.footer-social { display: flex; gap: 10px; margin-top: 20px; }
.social-link {
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.06);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--text-muted);
  transition: var(--transition);
  border: 1px solid rgba(255,255,255,0.08);
}
.social-link:hover { background: var(--primary); color: white; border-color: var(--primary); }
.footer-col h4 { font-size: 0.95rem; color: var(--white); margin-bottom: 16px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 0.85rem; color: var(--text-muted); transition: var(--transition); }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-qr { display: flex; gap: 16px; margin-top: 20px; }
.qr-item { text-align: center; }
.qr-box {
  width: 80px; height: 80px;
  background: white;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  color: #333;
  margin-bottom: 6px;
  position: relative;
  overflow: hidden;
}
.qr-box::before {
  content: '▪▪▪\A▪ ▪\A▪▪▪';
  white-space: pre;
  font-size: 1.2rem;
  color: #333;
  line-height: 1.5;
  text-align: center;
}
.qr-label { font-size: 0.72rem; color: var(--text-muted); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { font-size: 0.82rem; color: var(--text-muted); }
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--accent); }
.update-time { font-size: 0.8rem; color: var(--text-muted); }

/* ---- Inner Page Styles ---- */
.page-hero {
  padding: 140px 0 80px;
  background: var(--dark-2);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at center, rgba(108,63,255,0.15) 0%, transparent 70%);
}
.page-hero h1 { font-size: clamp(2rem, 5vw, 3.5rem); position: relative; z-index: 1; }
.page-hero p { color: var(--text-muted); max-width: 600px; margin: 16px auto 0; position: relative; z-index: 1; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  justify-content: center;
  position: relative;
  z-index: 1;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: var(--accent); }

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .explore-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .main-nav { display: none; }
  .menu-toggle { display: flex; }
  .main-nav.mobile-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 70px; left: 0; right: 0;
    background: rgba(10,10,26,0.98);
    padding: 20px;
    border-bottom: 1px solid rgba(108,63,255,0.2);
    backdrop-filter: blur(20px);
    z-index: 999;
  }
  .hero h1 { font-size: 2.2rem; }
  .hero-stats { gap: 20px; }
  .story-grid { grid-template-columns: 1fr; }
  .story-image { order: -1; }
  .video-grid { grid-template-columns: 1fr; }
  .explore-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .inspire-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .search-hot-tags { display: none; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-stats { flex-wrap: wrap; justify-content: center; }
  .story-values { grid-template-columns: 1fr; }
}