/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #7b2ff7;
  --primary-dark: #5a1fbf;
  --secondary: #f107a3;
  --accent: #00d4ff;
  --dark: #0a0a1a;
  --dark2: #0f0f2d;
  --dark3: #1a1a3e;
  --text: #e0e0ff;
  --text-muted: #8888aa;
  --card-bg: rgba(255,255,255,0.04);
  --card-border: rgba(123,47,247,0.25);
  --radius: 16px;
  --shadow: 0 8px 32px rgba(123,47,247,0.18);
  --transition: all 0.3s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; }
body {
  font-family: 'Open Sans', sans-serif;
  background: var(--dark);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
button { cursor: pointer; font-family: inherit; }

/* ===== TYPOGRAPHY ===== */
h1,h2,h3,h4 { font-family: 'Montserrat', sans-serif; line-height: 1.2; }
h1 { font-size: clamp(2.4rem, 6vw, 4.5rem); font-weight: 900; letter-spacing: -1px; }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; }
h3 { font-size: 1.3rem; font-weight: 700; }

.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--primary);
  text-transform: uppercase;
  background: rgba(123,47,247,0.12);
  border: 1px solid rgba(123,47,247,0.3);
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 16px;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-top: 12px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 700;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  box-shadow: 0 4px 20px rgba(123,47,247,0.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(123,47,247,0.6);
}
.btn-outline {
  background: transparent;
  color: var(--text);
  border: 2px solid rgba(255,255,255,0.2);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(123,47,247,0.08);
}
.btn-full { width: 100%; justify-content: center; }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0;
  transition: var(--transition);
  background: rgba(10,10,26,0.0);
  backdrop-filter: blur(0px);
}
.navbar.scrolled {
  background: rgba(10,10,26,0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(123,47,247,0.2);
  box-shadow: 0 4px 30px rgba(0,0,0,0.4);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: 1.4rem;
  letter-spacing: -0.5px;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo-icon { font-size: 1.6rem; filter: drop-shadow(0 0 8px var(--primary)); }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: 0.5px;
  color: rgba(255,255,255,0.8);
  transition: var(--transition);
  position: relative;
}
.nav-links a:not(.btn-admin):hover { color: var(--primary); }
.nav-links a:not(.btn-admin)::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transition: var(--transition);
}
.nav-links a:not(.btn-admin):hover::after { transform: scaleX(1); }
.btn-admin {
  padding: 8px 20px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50px;
  color: #fff !important;
  font-size: 0.85rem;
  font-weight: 700;
}
.btn-admin:hover { opacity: 0.9; transform: translateY(-1px); }

/* Nav CTA Button (Play Now) */
.btn-nav-cta {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 24px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50px;
  color: #fff !important;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-decoration: none;
  box-shadow: 0 4px 15px rgba(123,47,247,0.35);
  transition: var(--transition);
  position: relative;
}
.btn-nav-cta:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 6px 25px rgba(123,47,247,0.5);
}
.btn-nav-cta::after { display: none !important; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== BANNER SLIDER ===== */
.banner-section {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: var(--dark2);
}
.banner-slider {
  display: flex;
  transition: transform 0.6s cubic-bezier(.4,0,.2,1);
  will-change: transform;
}
.banner-slide {
  min-width: 100%;
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.banner-slide-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transition: transform 8s ease;
}
.banner-slide:hover .banner-slide-bg { transform: scale(1.04); }
.banner-slide-overlay {
  position: absolute;
  inset: 0;
  background: transparent;
}
/* 无图片时的默认渐变背景 */
.banner-slide-bg.default-bg {
  background:
    radial-gradient(ellipse 80% 60% at 60% 40%, rgba(123,47,247,0.28) 0%, transparent 70%),
    radial-gradient(ellipse 50% 50% at 10% 80%, rgba(241,7,163,0.18) 0%, transparent 60%),
    linear-gradient(180deg, var(--dark2) 0%, var(--dark) 100%);
}
.banner-slide-bg.default-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle 1px at 1px 1px, rgba(255,255,255,0.06) 1px, transparent 0);
  background-size: 40px 40px;
}
.banner-content {
  position: relative;
  z-index: 2;
  padding: 120px 24px 80px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}
.banner-content-inner { max-width: 760px; }

/* ===== BANNER SPLIT LAYOUT (Text Left + Image Right) ===== */
.banner-slide-split {
  min-height: 100vh;
  overflow: visible;
}
.banner-slide-split .banner-content-split {
  display: flex;
  align-items: center;
  gap: 40px;
  max-width: 1200px;
  padding-bottom: 40px;
}
.banner-slide-split .banner-content-inner {
  flex: 1;
  min-width: 0;
}
.banner-split-img {
  flex: 0 0 auto;
  width: 45%;
  max-width: 560px;
  position: relative;
  z-index: 2;
  animation: splitFadeIn 0.8s ease 0.3s both;
}
.banner-split-img img {
  width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 16px;
  filter: drop-shadow(0 20px 60px rgba(123,47,247,0.25));
}
@keyframes splitFadeIn {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}
@media (max-width: 900px) {
  .banner-slide-split .banner-content-split {
    flex-direction: column;
    text-align: center;
  }
  .banner-slide-split .hero-sub { max-width: 100%; }
  .banner-slide-split .hero-actions { justify-content: center; }
  .banner-slide-split .hero-stats { justify-content: center; }
  .banner-split-img {
    flex: none;
    max-width: 360px;
    width: 100%;
    order: -1;
    margin-top: 80px;
  }
  .banner-split-img img { max-height: none; }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(123,47,247,0.15);
  border: 1px solid rgba(123,47,247,0.4);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: #c084fc;
  margin-bottom: 24px;
  text-shadow: 0 1px 6px rgba(0,0,0,0.4);
}
.banner-content h1 {
  margin-bottom: 24px;
  text-shadow: 0 2px 12px rgba(0,0,0,0.6), 0 0 40px rgba(0,0,0,0.3);
}
.hero-sub {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 40px;
  max-width: 580px;
  text-shadow: 0 1px 8px rgba(0,0,0,0.5);
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 60px; }
.hero-stats { display: flex; align-items: center; gap: 32px; }
.stat { display: flex; flex-direction: column; }
.stat-num {
  font-family: 'Montserrat', sans-serif;
  font-size: 2rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.stat-label { font-size: 0.8rem; color: rgba(255,255,255,0.7); margin-top: 4px; text-shadow: 0 1px 4px rgba(0,0,0,0.4); }
.stat-divider { width: 1px; height: 40px; background: rgba(255,255,255,0.12); }

/* Banner Controls */
.banner-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 52px; height: 52px;
  background: rgba(123,47,247,0.25);
  border: 1px solid rgba(123,47,247,0.5);
  border-radius: 50%;
  color: #fff;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  backdrop-filter: blur(8px);
}
.banner-arrow:hover { background: var(--primary); border-color: var(--primary); transform: translateY(-50%) scale(1.1); }
.banner-prev { left: 24px; }
.banner-next { right: 24px; }
.banner-dots {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}
.banner-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  padding: 0;
}
.banner-dot.active {
  background: var(--primary);
  width: 28px;
  border-radius: 4px;
  box-shadow: 0 0 8px var(--primary);
}

/* ===== CONTACT IMAGE SIDE ===== */
.contact-img-side {
  display: flex;
  flex-direction: column;
}
.contact-img-wrap {
  width: 100%;
  min-height: 420px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--card-border);
  position: relative;
  background: linear-gradient(135deg, rgba(123,47,247,0.15), rgba(241,7,163,0.12));
}
.contact-img-wrap img {
  width: 100%;
  height: 100%;
  min-height: 420px;
  max-height: 600px;
  object-fit: cover;
  object-position: center;
  display: block;
  border-radius: var(--radius);
  transition: transform .3s;
}
.contact-img-wrap > a {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 420px;
  max-height: 600px;
  border-radius: var(--radius);
}
.contact-img-wrap > a img:hover {
  transform: scale(1.03);
}
.contact-img-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-height: 420px;
  gap: 16px;
  padding: 32px;
}
.contact-info-cards { display: flex; flex-direction: column; gap: 16px; width: 100%; }
.contact-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 20px 24px;
  transition: var(--transition);
}
.contact-card:hover { border-color: var(--primary); }
.contact-card i { font-size: 1.3rem; color: var(--primary); margin-bottom: 8px; display: block; }
.contact-card h4 { font-size: 0.9rem; margin-bottom: 4px; }
.contact-card p { font-size: 0.85rem; color: var(--text-muted); }
.contact-card a { color: var(--primary); }

/* HERO ===== (legacy fallback) */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 72px;
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 60% 40%, rgba(123,47,247,0.25) 0%, transparent 70%),
    radial-gradient(ellipse 50% 50% at 10% 80%, rgba(241,7,163,0.15) 0%, transparent 60%),
    linear-gradient(180deg, var(--dark2) 0%, var(--dark) 100%);
}
.hero-content { position: relative; z-index: 2; padding: 80px 24px; max-width: 760px; }
@keyframes scrollBounce {
  0%,100% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(12px); opacity: 0.4; }
}

/* ===== SERVICES ===== */
.services { padding: 100px 0; background: var(--dark2); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  text-align: center;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}
.feature-card:hover { transform: translateY(-6px); border-color: var(--primary); box-shadow: var(--shadow); }
.feature-card:hover::before { transform: scaleX(1); }
.feature-num {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: 2.2rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
  line-height: 1;
}
.feature-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, rgba(123,47,247,0.2), rgba(241,7,163,0.15));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary);
  margin: 0 auto 20px;
  transition: var(--transition);
}
.feature-card:hover .feature-icon { transform: scale(1.1); }
.feature-card h3 { font-size: 1.05rem; margin-bottom: 10px; }
.feature-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; }
.services-cta {
  text-align: center;
  margin-top: 48px;
}
.services-cta .cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 40px;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 50px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  text-decoration: none;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(123,47,247,0.3);
}
.services-cta .cta-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(123,47,247,0.5); }

@media (max-width: 992px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .services-grid { grid-template-columns: 1fr; }
}

/* ===== STARTER ===== */
.starter { padding: 100px 0; background: var(--dark); }
.starter-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.starter-text .section-tag { margin-bottom: 16px; }
.starter-text h2 { margin-bottom: 20px; }
.starter-text > p { color: var(--text-muted); margin-bottom: 32px; }
.starter-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 40px;
}
.starter-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
}
.starter-list li i { color: #7b2ff7; margin-top: 3px; flex-shrink: 0; }

/* Phone mockup */
.starter-visual { display: flex; justify-content: center; }
.phone-mockup {
  width: 260px;
  background: #0d0d2b;
  border-radius: 36px;
  border: 2px solid rgba(123,47,247,0.4);
  box-shadow: 0 30px 80px rgba(123,47,247,0.3), 0 0 0 8px rgba(123,47,247,0.05);
  overflow: hidden;
  padding: 20px 16px 24px;
}
.phone-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}
.phone-dot {
  width: 10px; height: 10px;
  background: var(--primary);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--primary);
}
.phone-title {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 0.85rem;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.phone-games {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 18px;
}
.game-tile {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 16px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--text-muted);
  transition: var(--transition);
  cursor: pointer;
}
.game-tile:hover { background: rgba(123,47,247,0.15); border-color: var(--primary); }
.game-tile i { font-size: 1.2rem; }
.tile-1 i { color: #f107a3; }
.tile-2 i { color: #00d4ff; }
.tile-3 i { color: #ffd700; }
.tile-4 i { color: #7b2ff7; }
.phone-balance {
  background: linear-gradient(135deg, rgba(123,47,247,0.2), rgba(241,7,163,0.1));
  border: 1px solid rgba(123,47,247,0.3);
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
}
.phone-balance span { color: var(--text-muted); }
.phone-balance strong { font-size: 1.1rem; color: #fff; }
.phone-actions { display: flex; gap: 8px; }
.phn-btn {
  flex: 1;
  padding: 10px;
  border-radius: 10px;
  font-size: 0.78rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border: none;
}
.phn-btn-outline {
  background: transparent;
  border: 1px solid rgba(123,47,247,0.4);
  color: var(--text-muted);
}

/* ===== FAQ ===== */
.faq { padding: 100px 0; background: var(--dark2); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid rgba(255,255,255,0.08);
  overflow: hidden;
}
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  gap: 16px;
  transition: var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(123,47,247,0.12);
  border: 1px solid rgba(123,47,247,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.75rem;
  color: var(--primary);
  transition: var(--transition);
}
.faq-item.open .faq-icon { background: var(--primary); color: #fff; transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(.4,0,.2,1);
}
.faq-item.open .faq-answer { max-height: 200px; }
.faq-answer p {
  padding: 0 0 24px 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ===== BLOG ===== */
.blog { padding: 100px 0; background: var(--dark); }
.blog-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 24px;
  margin-bottom: 40px;
}
.blog-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.blog-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--primary); }
.blog-img {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.blog-img-icon { font-size: 3rem; color: rgba(255,255,255,0.15); }
.blog-cat {
  position: absolute;
  top: 16px; left: 16px;
  background: rgba(0,0,0,0.5);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  padding: 4px 12px;
  border-radius: 50px;
  backdrop-filter: blur(4px);
}
.blog-body { padding: 24px; }
.blog-meta {
  display: flex;
  gap: 16px;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.blog-meta span { display: flex; align-items: center; gap: 5px; }
.blog-body h3 { font-size: 1.05rem; margin-bottom: 10px; line-height: 1.4; }
.blog-body p { color: var(--text-muted); font-size: 0.88rem; margin-bottom: 16px; }
.blog-more { text-align: center; }

/* ===== ABOUT ===== */
.about { padding: 100px 0; background: var(--dark3); }
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-text h2 { margin-bottom: 20px; }
.about-text p { color: var(--text-muted); margin-bottom: 16px; }
.about-values {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 32px;
}
.value-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.88rem;
}
.value-item i {
  color: var(--primary);
  font-size: 1rem;
}
.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.about-stat-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
}
.about-stat-card:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.about-stat-card i { font-size: 1.8rem; color: var(--primary); margin-bottom: 12px; display: block; }
.about-num {
  display: block;
  font-family: 'Montserrat', sans-serif;
  font-size: 2rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
}
.about-stat-card span:last-child { font-size: 0.82rem; color: var(--text-muted); }

/* ===== CONTACT ===== */
.contact { padding: 100px 0; background: var(--dark2); }
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 16px; }
.contact-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 20px 24px;
  transition: var(--transition);
}
.contact-card:hover { border-color: var(--primary); }
.contact-card i { font-size: 1.3rem; color: var(--primary); margin-bottom: 8px; display: block; }
.contact-card h4 { font-size: 0.9rem; margin-bottom: 4px; }
.contact-card p { font-size: 0.85rem; color: var(--text-muted); }
.contact-card a { color: var(--primary); }

.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-size: 0.85rem; font-weight: 600; color: rgba(255,255,255,0.7); }
.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  padding: 14px 16px;
  color: var(--text);
  font-size: 0.92rem;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
  resize: vertical;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  background: rgba(123,47,247,0.06);
  box-shadow: 0 0 0 3px rgba(123,47,247,0.12);
}
.form-group select option { background: var(--dark2); }
.form-success {
  display: none;
  text-align: center;
  padding: 16px;
  background: rgba(0,200,100,0.1);
  border: 1px solid rgba(0,200,100,0.3);
  border-radius: 10px;
  color: #4cff9f;
  font-weight: 600;
  gap: 8px;
}
.form-success.show { display: flex; align-items: center; justify-content: center; }

/* ===== FOOTER ===== */
.footer { background: var(--dark); border-top: 1px solid rgba(255,255,255,0.06); padding: 80px 0 0; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 60px;
}
.footer-brand .logo { margin-bottom: 16px; display: inline-flex; }
.footer-brand p { color: var(--text-muted); font-size: 0.88rem; margin-bottom: 24px; }
.social-links { display: flex; gap: 12px; }
.social-links a {
  width: 40px; height: 40px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: var(--transition);
}
.social-links a:hover { background: var(--primary); border-color: var(--primary); transform: translateY(-2px); }
.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 20px;
  color: rgba(255,255,255,0.9);
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a { font-size: 0.88rem; color: var(--text-muted); transition: var(--transition); }
.footer-col ul a:hover { color: var(--primary); }
.footer-col p { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 16px; }
.newsletter-form {
  display: flex;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 50px;
  overflow: hidden;
  transition: var(--transition);
}
.newsletter-form:focus-within { border-color: var(--primary); }
.newsletter-form input {
  flex: 1;
  background: none;
  border: none;
  padding: 12px 20px;
  color: var(--text);
  font-size: 0.88rem;
  outline: none;
}
.newsletter-form button {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border: none;
  border-radius: 50px;
  color: #fff;
  font-size: 0.85rem;
  margin: 2px;
  transition: var(--transition);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.newsletter-form button:hover { opacity: 0.9; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 24px 0;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.footer-download-col {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 10px;
}
.footer-download-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 50px;
  text-decoration: none;
  transition: transform .3s, box-shadow .3s;
  box-shadow: 0 4px 20px rgba(123,47,247,0.35);
}
.footer-download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(123,47,247,0.5);
}
.footer-download-btn::before {
  content: '\f019';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 0.9rem;
}

/* ===== BACK TO TOP ===== */
.back-top {
  position: fixed;
  bottom: 32px; right: 32px;
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border: none;
  border-radius: 14px;
  color: #fff;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(123,47,247,0.4);
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition);
  pointer-events: none;
  z-index: 999;
}
.back-top.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.back-top:hover { transform: translateY(-3px); }

/* ===== ANIMATIONS ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ===== LIVE CHAT WIDGET ===== */
.chat-widget {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 9998;
  font-family: 'Open Sans', sans-serif;
}
.chat-fab {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border: none;
  color: #fff;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 6px 28px rgba(123,47,247,0.5);
  transition: var(--transition);
  position: relative;
}
.chat-fab:hover { transform: scale(1.1); box-shadow: 0 8px 36px rgba(123,47,247,0.7); }
.chat-fab.active { border-radius: 18px; }
.chat-fab.active i { animation: fabPulse .5s ease; }
@keyframes fabPulse { 0%{transform:scale(1)} 50%{transform:rotate(15deg) scale(1.1)} 100%{transform:scale(1)} }
.chat-fab-badge {
  position: absolute;
  top: -4px; right: -4px;
  background: #ef4444;
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  min-width: 20px; height: 20px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
  border: 2px solid var(--dark);
}

/* Chat Window */
.chat-window {
  position: absolute;
  bottom: 76px;
  right: 0;
  width: 380px;
  max-height: 540px;
  background: var(--dark2);
  border: 1px solid rgba(123,47,247,0.3);
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 16px 64px rgba(0,0,0,0.5);
  opacity: 0;
  transform: translateY(20px) scale(0.95);
  pointer-events: none;
  transition: opacity .3s ease, transform .3s ease;
}
.chat-window.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
.chat-header {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}
.chat-header-info { display: flex; align-items: center; gap: 12px; }
.chat-header-avatar {
  width: 42px; height: 42px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; color: #fff;
}
.chat-header-title { color: #fff; font-weight: 700; font-size: .95rem; }
.chat-header-status { display: flex; align-items: center; gap: 6px; font-size: .78rem; color: rgba(255,255,255,0.85); }
.chat-status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 6px #4ade80;
  animation: statusBlink 2s ease-in-out infinite;
}
@keyframes statusBlink { 0%,100%{opacity:1} 50%{opacity:.4} }
.chat-close {
  width: 32px; height: 32px; border-radius: 50%;
  background: rgba(255,255,255,0.15);
  border: none; color: #fff; font-size: .85rem;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: var(--transition);
}
.chat-close:hover { background: rgba(255,255,255,0.3); }

/* Chat Body */
.chat-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 280px;
  max-height: 340px;
  scrollbar-width: thin;
  scrollbar-color: rgba(123,47,247,0.3) transparent;
}
.chat-body::-webkit-scrollbar { width: 4px; }
.chat-body::-webkit-scrollbar-thumb { background: rgba(123,47,247,0.3); border-radius: 2px; }

.chat-msg { display: flex; gap: 10px; max-width: 88%; animation: msgIn .3s ease; }
.chat-msg.bot { align-self: flex-start; }
.chat-msg.user { align-self: flex-end; flex-direction: row-reverse; }
@keyframes msgIn { from{opacity:0;transform:translateY(10px)} to{opacity:1;transform:translateY(0)} }
.chat-msg-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: .8rem; flex-shrink: 0;
}
.chat-msg.bot .chat-msg-avatar { background: rgba(123,47,247,0.2); color: var(--primary); }
.chat-msg.user .chat-msg-avatar { background: rgba(241,7,163,0.2); color: var(--secondary); }
.chat-msg-bubble {
  padding: 12px 16px;
  border-radius: 16px;
  font-size: .88rem;
  line-height: 1.5;
  word-break: break-word;
}
.chat-msg.bot .chat-msg-bubble {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-bottom-left-radius: 4px;
  color: var(--text);
}
.chat-msg.user .chat-msg-bubble {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border-bottom-right-radius: 4px;
}
.chat-msg-time {
  font-size: .68rem;
  color: var(--text-muted);
  margin-top: 4px;
  text-align: right;
}
.chat-msg.bot .chat-msg-time { text-align: left; }

/* Chat Footer */
.chat-footer { padding: 14px 16px; border-top: 1px solid rgba(255,255,255,0.06); flex-shrink: 0; }
.chat-input-wrap {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 50px;
  padding: 4px 4px 4px 18px;
  transition: var(--transition);
}
.chat-input-wrap:focus-within { border-color: var(--primary); background: rgba(123,47,247,0.06); }
.chat-input {
  flex: 1;
  background: none;
  border: none;
  color: var(--text);
  font-size: .88rem;
  outline: none;
  font-family: inherit;
}
.chat-input::placeholder { color: var(--text-muted); }
.chat-send {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border: none;
  color: #fff;
  font-size: .85rem;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}
.chat-send:hover { transform: scale(1.1); }
.chat-leave-msg {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 10px;
  font-size: .78rem;
  color: var(--text-muted);
}
.chat-leave-btn {
  background: none;
  border: none;
  color: var(--primary);
  font-weight: 700;
  cursor: pointer;
  font-size: .78rem;
  font-family: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.chat-leave-btn:hover { color: var(--secondary); }

/* Leave Message Form */
.chat-leave-form {
  padding: 20px 16px;
  flex-shrink: 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.chat-leave-form-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 700;
  font-size: .92rem;
  margin-bottom: 4px;
}
.chat-leave-input, .chat-leave-textarea {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--text);
  font-size: .85rem;
  font-family: inherit;
  outline: none;
  transition: var(--transition);
  resize: none;
}
.chat-leave-input:focus, .chat-leave-textarea:focus {
  border-color: var(--primary);
  background: rgba(123,47,247,0.06);
}
.chat-leave-textarea { min-height: 80px; }
.chat-leave-submit {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border: none;
  color: #fff;
  padding: 12px;
  border-radius: 50px;
  font-weight: 700;
  font-size: .88rem;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}
.chat-leave-submit:hover { opacity: .9; transform: translateY(-1px); }
.chat-leave-cancel {
  background: none;
  border: 1px solid rgba(255,255,255,0.15);
  color: var(--text-muted);
  padding: 10px;
  border-radius: 50px;
  font-weight: 600;
  font-size: .85rem;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}
.chat-leave-cancel:hover { border-color: var(--primary); color: var(--primary); }

/* Typing indicator */
.chat-typing { display: flex; gap: 4px; padding: 8px 0; }
.chat-typing-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--text-muted);
  animation: typingBounce 1.2s ease-in-out infinite;
}
.chat-typing-dot:nth-child(2) { animation-delay: .2s; }
.chat-typing-dot:nth-child(3) { animation-delay: .4s; }
@keyframes typingBounce { 0%,60%,100%{transform:translateY(0);opacity:.4} 30%{transform:translateY(-6px);opacity:1} }

/* Chat responsive */
@media (max-width: 480px) {
  .chat-window { width: calc(100vw - 32px); right: -8px; bottom: 72px; max-height: 70vh; }
  .chat-widget { bottom: 16px; right: 16px; }
  .chat-fab { width: 52px; height: 52px; font-size: 1.3rem; }
}

/* ===== LOGO IMAGE ===== */
.logo { gap: 10px; align-items: center; }
.logo img { border-radius: 8px; flex-shrink: 0; }
.logo .logo-text { display: inline; white-space: nowrap; }
/* 图片+文字同时显示时，文字略小一点更协调 */
.logo img + .logo-text { font-size: 1.15rem; }
@media (max-width: 1024px) {
  .blog-grid { grid-template-columns: 1fr 1fr; }
  .blog-grid .featured-post { grid-column: span 2; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .hamburger { display: flex; }
  .nav-links {
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: rgba(10,10,26,0.98);
    flex-direction: column;
    padding: 32px 24px;
    gap: 0;
    border-bottom: 1px solid rgba(123,47,247,0.2);
    transform: translateY(-100%);
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
  }
  .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-links a {
    padding: 16px 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    font-size: 1rem;
  }
  .btn-nav-cta {
    width: 100%;
    justify-content: center;
    margin-top: 16px;
    padding: 14px 24px;
    font-size: 0.95rem;
  }
  .starter-inner { grid-template-columns: 1fr; }
  .starter-visual { order: -1; }
  .about-inner { grid-template-columns: 1fr; }
  .contact-inner { grid-template-columns: 1fr; }
  .contact-img-wrap { min-height: 260px; }
  .contact-img-wrap img { min-height: 260px; max-height: 400px; }
  .contact-img-placeholder { min-height: 280px; }
  .form-row { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .blog-grid .featured-post { grid-column: span 1; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-stats { gap: 20px; }
  .stat-num { font-size: 1.5rem; }
}
@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .about-stats { grid-template-columns: 1fr 1fr; }
}