/* ============================================
   老街网络官网 - 全局样式表
   ============================================ */

/* ---- Reset & Base ---- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html { scroll-behavior: smooth; font-size: 16px; overflow-x: hidden; }
body {
  font-family: "PingFang SC","Microsoft YaHei","Hiragino Sans GB","WenQuanYi Micro Hei",sans-serif;
  background-color: #0A1628;
  color: #B0B8C8;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ---- CSS Variables ---- */
:root {
  --color-primary: #0A1628;
  --color-secondary: #1A2A4A;
  --color-accent: #FF6B35;
  --color-tech: #00D4FF;
  --color-accent-gradient: linear-gradient(135deg, #FF6B35, #FF9A56);
  --color-tech-gradient: linear-gradient(135deg, #00D4FF, #007BFF);
  --color-text: #FFFFFF;
  --color-text-secondary: #B0B8C8;
  --color-text-weak: #6B7280;
  --color-border: rgba(255,255,255,0.08);
  --color-success: #22C55E;
  --color-bg-dark: #060E1A;
  --section-padding: 100px 0;
  --content-max-width: 1200px;
  --card-radius: 16px;
  --btn-radius: 8px;
  --transition-normal: 0.3s ease;
}

/* ---- Grid Overflow Prevention ---- */
.grid-child-safe, .business-grid > *, .stats-grid > *, .companion-grid > *,
.case-grid > *, .promo-grid > *, .recruit-grid > *, .footer-grid > *,
.process-steps > *, .mode-grid > *, .service-flow > * {
  min-width: 0;
}
img, svg { max-width: 100%; }

/* ---- Typography ---- */
h1,h2,h3,h4,h5,h6 { color: var(--color-text); font-weight: 700; line-height: 1.2; }
a { color: var(--color-tech); text-decoration: none; transition: color var(--transition-normal); }
a:hover { color: #33DDFF; }
img { max-width: 100%; height: auto; }

/* ---- Layout ---- */
.container { max-width: var(--content-max-width); margin: 0 auto; padding: 0 20px; width: 100%; box-sizing: border-box; }
.section { padding: var(--section-padding); position: relative; }
.section-alt { background-color: var(--color-secondary); }
.section-header { text-align: center; margin-bottom: 60px; }
.section-title {
  font-size: 2.5rem; margin-bottom: 16px; display: inline-block;
  position: relative;
}
.section-title::after {
  content: ""; display: block; width: 60px; height: 3px;
  background: var(--color-accent-gradient); margin: 16px auto 0;
  border-radius: 2px;
}
.section-subtitle {
  font-size: 1.125rem; color: var(--color-text-secondary);
  max-width: 600px; margin: 0 auto;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 32px; font-size: 1rem; font-weight: 600;
  border-radius: var(--btn-radius); border: none; cursor: pointer;
  transition: all var(--transition-normal); text-decoration: none;
  font-family: inherit; letter-spacing: 0.5px;
}
.btn-primary {
  background: var(--color-accent-gradient); color: #fff;
  box-shadow: 0 4px 15px rgba(255,107,53,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(255,107,53,0.4); color: #fff;
}
.btn-secondary {
  background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,0.3);
}
.btn-secondary:hover {
  background: var(--color-accent-gradient); border-color: transparent;
  transform: translateY(-2px); color: #fff;
}
.btn-outline {
  background: transparent; color: var(--color-tech);
  border: 1.5px solid var(--color-tech);
}
.btn-outline:hover {
  background: var(--color-tech); color: var(--color-primary); transform: translateY(-2px);
}
.btn-link {
  background: none; color: var(--color-text-secondary); padding: 14px 8px;
}
.btn-link:hover { color: var(--color-accent); }
.btn-sm { padding: 10px 20px; font-size: 0.875rem; }

/* ---- Cards ---- */
.card {
  background: var(--color-secondary); border-radius: var(--card-radius);
  padding: 32px; border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 40px rgba(255,107,53,0.15);
  border-color: rgba(255,107,53,0.3);
}

/* ---- Navigation ---- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 16px 0; transition: all var(--transition-normal);
}
.navbar.scrolled {
  background: rgba(10,22,40,0.85);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  padding: 10px 0; /*border-bottom: 1px solid var(--color-border);*/
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; }
.nav-logo {
  display: flex; align-items: center; gap: 4px;
  font-size: 1.25rem; font-weight: 700; color: #fff; text-decoration: none;
}
.nav-logo:hover { color: var(--color-accent); }
.nav-logo img{width: 32px;height: 32px;}
.nav-logo-icon {
  width: 36px; height: 36px; background: var(--color-accent-gradient);
  border-radius: 8px; display: flex; align-items: center; justify-content: center;
  font-size: 1.125rem; font-weight: 900; color: #fff;
}
.nav-links { display: flex; align-items: center; gap: 8px; list-style: none; }
.nav-links a {
  color: var(--color-text-secondary); padding: 8px 16px; border-radius: 6px;
  font-size: 0.9375rem; font-weight: 500;
  transition: all var(--transition-normal); text-decoration: none;
}
.nav-links a:hover, .nav-links a.active { color: #fff; background: rgba(255,255,255,0.06); }
.nav-login {
  padding: 8px 20px !important;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--btn-radius) !important;
}
.nav-login:hover { border-color: var(--color-accent) !important; background: transparent !important; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: #fff; border-radius: 2px; transition: all var(--transition-normal); }
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ---- Hero ---- */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  justify-content: center; text-align: center; overflow: hidden;
  background: var(--color-primary);
}
.hero-bg {
  position: absolute; inset: 0; z-index: 1;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(0,212,255,0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 50%, rgba(255,107,53,0.04) 0%, transparent 50%),
    linear-gradient(180deg, rgba(10,22,40,0.2) 0%, rgba(10,22,40,0.5) 50%, rgba(10,22,40,0.7) 100%);
}
.hero-content { position: relative; z-index: 5; max-width: 800px; padding: 0 20px; }
.hero-title {
  font-size: 4rem; font-weight: 800; line-height: 1.1; margin-bottom: 8px;
  letter-spacing: 2px; text-shadow: 0 0 30px rgba(255,107,53,0.15);
}
.hero-title-line { display: block; }
.hero-subtitle {
  font-size: 1.125rem; color: var(--color-text-secondary);
  margin: 20px 0 40px; letter-spacing: 1px;
}
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-scroll {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  z-index: 2; display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--color-text-weak); font-size: 0.8125rem; animation: bounceDown 2s infinite;
}
.hero-scroll-arrow {
  width: 20px; height: 20px;
  border-right: 2px solid var(--color-text-weak);
  border-bottom: 2px solid var(--color-text-weak);
  transform: rotate(45deg);
}

/* ---- Business Grid ---- */
.business-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.business-card { text-align: center; padding: 40px 24px; }
.business-icon {
  width: 56px; height: 56px; margin: 0 auto 20px;
  background: rgba(0,212,255,0.1); border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; transition: all var(--transition-normal);
}
.business-card:hover .business-icon {
  background: rgba(0,212,255,0.2); transform: scale(1.1) rotate(-5deg);
}
.business-card h3 { font-size: 1.25rem; margin-bottom: 16px; }
.business-card ul { list-style: none; text-align: center; margin-bottom: 20px; }
.business-card ul li { color: var(--color-text-secondary); font-size: 0.9375rem; padding: 4px 0; }
.business-card ul li::before { content: "·"; color: var(--color-accent); margin-right: 6px; }
.business-link { color: var(--color-tech); font-size: 0.9375rem; font-weight: 500; text-decoration: none; }
.business-link:hover { color: var(--color-accent); }
.business-link::after { content: " →"; }

/* ---- Stats ---- */
.stats-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 32px; text-align: center; }
.stat-item { padding: 32px; }
.stat-number {
  font-family: "Orbitron","Courier New",monospace; font-size: 4rem; font-weight: 700;
  background: var(--color-accent-gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; line-height: 1; margin-bottom: 8px;
}
.stat-label { font-size: 1rem; color: var(--color-text-secondary); }

/* ---- Companion ---- */
.companion-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; margin-bottom: 40px; }
.companion-card { text-align: center; padding: 32px 24px; }
.companion-avatar {
  width: 72px; height: 72px; border-radius: 50%; margin: 0 auto 16px;
  background: linear-gradient(135deg,var(--color-secondary),var(--color-accent));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.75rem; color: #fff; position: relative;
}
.companion-status {
  position: absolute; bottom: 2px; right: 2px; width: 14px; height: 14px;
  border-radius: 50%; border: 2px solid var(--color-secondary);
}
.companion-status.online { background: var(--color-success); animation: pulse 2s infinite; }
.companion-status.offline { background: var(--color-text-weak); }
.companion-card h3 { font-size: 1.125rem; margin-bottom: 4px; }
.companion-rank { color: #FFD700; font-size: 0.9375rem; margin-bottom: 8px; }
.companion-info { font-size: 0.9375rem; color: var(--color-text-secondary); margin-bottom: 16px; }
.companion-cta { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ---- Case Grid ---- */
.case-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.case-card { overflow: hidden; padding: 0; }
.case-image {
  height: 200px; background: linear-gradient(135deg,var(--color-secondary),var(--color-primary));
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem; position: relative; overflow: hidden;
}
.case-image::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg,transparent 60%,rgba(10,22,40,0.8) 100%);
}
.case-body { padding: 24px; }
.case-body h3 { font-size: 1.125rem; margin-bottom: 8px; }
.case-meta { font-size: 0.875rem; color: var(--color-text-weak); margin-bottom: 12px; }
.case-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.case-tag {
  padding: 4px 12px; border-radius: 20px; font-size: 0.8125rem;
  background: rgba(255,107,53,0.15); color: var(--color-accent);
}
.case-tag.blue { background: rgba(0,212,255,0.15); color: var(--color-tech); }

/* ---- Platform ---- */
.platform-grid { display: flex; justify-content: center; flex-wrap: wrap; gap: 40px; margin-bottom: 60px; }
.platform-item {
  width: 100px; height: 60px; display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.03); border-radius: 8px;
  border: 1px solid var(--color-border); font-size: 1rem; font-weight: 600;
  color: var(--color-text-weak); transition: all var(--transition-normal); opacity: 0.5;
}
.platform-item:hover { opacity: 1; border-color: rgba(255,255,255,0.2); color: #fff; transform: translateY(-2px); }
.promo-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.promo-card { text-align: center; padding: 32px 20px; }
.promo-card h4 { font-size: 1.125rem; margin-bottom: 12px; display: flex; align-items: center; justify-content: center; gap: 8px; }
.promo-card p { font-size: 0.9375rem; color: var(--color-text-secondary); }

/* ---- Recruit ---- */
.recruit-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.recruit-card { padding: 40px 32px; }
.recruit-card h3 { font-size: 1.25rem; margin-bottom: 20px; display: flex; align-items: center; gap: 12px; }
.recruit-card ul { list-style: none; margin-bottom: 24px; }
.recruit-card ul li { padding: 6px 0; font-size: 0.9375rem; color: var(--color-text-secondary); }
.recruit-card ul li::before { content: "✓"; color: var(--color-success); margin-right: 8px; font-weight: 700; }

/* ---- Footer ---- */
.footer { background: var(--color-bg-dark); padding: 60px 0 0; border-top: 1px solid var(--color-border); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer-brand p { font-size: 0.9375rem; margin-top: 16px; color: var(--color-text-weak); }
.footer-col h4 { font-size: 0.9375rem; color: #fff; margin-bottom: 20px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: var(--color-text-weak); font-size: 0.875rem; text-decoration: none; }
.footer-col ul li a:hover { color: var(--color-accent); }
.footer-social { display: flex; gap: 12px; margin-top: 16px; }
.footer-social a {
  width: 36px; height: 36px; border-radius: 8px; border: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-text-weak); font-size: 0.875rem; transition: all var(--transition-normal);
}
.footer-social a:hover { border-color: var(--color-accent); color: var(--color-accent); background: rgba(255,107,53,0.1); }
.footer-bottom { border-top: 1px solid var(--color-border); padding: 20px 0; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 0.8125rem; color: var(--color-text-weak); width: 100%; }
.footer-bottom .container { flex-wrap: wrap; gap: 8px; }
.footer-bottom-links { flex-wrap: wrap; }
.footer-bottom-links { display: flex; gap: 16px; }
.footer-bottom-links a { color: var(--color-text-weak); text-decoration: none; font-size: 0.8125rem; }
.footer-bottom-links a:hover { color: var(--color-accent); }

/* ---- Page Banner ---- */
.page-banner {
  padding: 160px 0 80px; text-align: center;
  background: linear-gradient(180deg,var(--color-primary) 0%,var(--color-secondary) 100%);
  position: relative; overflow: hidden;
}
.page-banner::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 20% 50%,rgba(0,212,255,0.06) 0%,transparent 50%),
              radial-gradient(ellipse at 80% 50%,rgba(255,107,53,0.04) 0%,transparent 50%);
}
.page-banner h1 { font-size: 3rem; margin-bottom: 16px; position: relative; }
.page-banner p { font-size: 1.125rem; color: var(--color-text-secondary); max-width: 600px; margin: 0 auto 24px; position: relative; }

/* ---- Process Steps ---- */
.process-steps { display: grid; grid-template-columns: repeat(5,1fr); gap: 16px; }
.process-step { text-align: center; padding: 24px 12px; position: relative; }
.process-step:not(:last-child)::after {
  content: ""; position: absolute; top: 40px; left: 60%;
  width: 80%; height: 2px;
  background: linear-gradient(90deg,var(--color-accent),var(--color-tech));
  opacity: 0.3;
}
.step-number {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--color-accent-gradient); display: flex; align-items: center;
  justify-content: center; font-weight: 700; font-size: 1.125rem;
  color: #fff; margin: 0 auto 16px;
}
.process-step h4 { font-size: 1rem; margin-bottom: 8px; }
.process-step p { font-size: 0.875rem; color: var(--color-text-weak); }

/* ---- Mode Cards, Filter, Form, Toast ---- */
.mode-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.mode-card { padding: 40px 28px; text-align: center; }
.mode-card h3 { font-size: 1.25rem; margin-bottom: 16px; }
.mode-card p { font-size: 0.9375rem; color: var(--color-text-secondary); margin-bottom: 20px; }
.filter-bar { display: flex; gap: 16px; margin-bottom: 40px; flex-wrap: wrap; justify-content: center; }
.filter-btn {
  padding: 8px 20px; border-radius: 20px; border: 1px solid var(--color-border);
  background: transparent; color: var(--color-text-secondary);
  font-size: 0.9375rem; cursor: pointer; transition: all var(--transition-normal);
  font-family: inherit;
}
.filter-btn:hover, .filter-btn.active { background: var(--color-accent-gradient); border-color: transparent; color: #fff; }
.form-section { max-width: 600px; margin: 0 auto; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.9375rem; color: var(--color-text); margin-bottom: 8px; font-weight: 500; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 12px 16px; border-radius: var(--btn-radius);
  border: 1px solid var(--color-border); background: rgba(255,255,255,0.05);
  color: #fff; font-size: 1rem; font-family: inherit;
  transition: all var(--transition-normal); outline: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--color-accent); box-shadow: 0 0 0 3px rgba(255,107,53,0.1);
}
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--color-text-weak); }
.form-group select {
  -webkit-appearance: none; appearance: none;
  background: #1A2A4A;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='%236B7280'%3E%3Cpath d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 16px center;
}
.form-group select option {
  background: #1A2A4A;
  color: #fff;
}
.form-group textarea { min-height: 120px; resize: vertical; }
.form-submit { width: 100%; padding: 14px; font-size: 1.125rem; margin-top: 8px; }
.toast {
  position: fixed; bottom: 40px; left: 50%; transform: translateX(-50%) translateY(100px);
  background: var(--color-accent-gradient); color: #fff; padding: 16px 32px;
  border-radius: var(--btn-radius); font-weight: 500; z-index: 9999;
  opacity: 0; transition: all 0.4s ease;
  box-shadow: 0 8px 30px rgba(255,107,53,0.3);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---- Animations ---- */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(40px); } to { opacity: 1; transform: translateY(0); } }
@keyframes bounceDown { 0%,100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(8px); } }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(34,197,94,0.4); } 50% { box-shadow: 0 0 0 6px rgba(34,197,94,0); } }

.animate-on-scroll { opacity: 0; transform: translateY(40px); transition: all 0.6s ease-out; }
.animate-on-scroll.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* ---- Service Flow ---- */
.service-flow { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.service-flow .flow-step { text-align: center; padding: 24px 16px; }
.service-flow .flow-step .icon { font-size: 2rem; margin-bottom: 12px; }
.service-flow .flow-step h4 { margin-bottom: 8px; }
.service-flow .flow-step p { font-size: 0.875rem; color: var(--color-text-weak); }

/* ---- Review ---- */
.review-card { padding: 24px; max-width: 500px; margin: 0 auto; }
.review-stars { color: #FFD700; margin-bottom: 12px; font-size: 1.125rem; }
.review-text { font-style: italic; font-size: 1rem; color: var(--color-text-secondary); margin-bottom: 16px; }
.review-author { font-size: 0.9375rem; color: var(--color-text); font-weight: 500; }

/* ---- Responsive ---- */
@media (max-width: 1199px) {
  .business-grid, .promo-grid { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: repeat(3,1fr); }
  .process-steps { grid-template-columns: repeat(3,1fr); }
  .process-step:not(:last-child)::after { display: none; }
  .service-flow { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 1023px) {
  .nav-links {
    position: fixed; top: 0; right: -100%; width: 152px; height: 100vh;
    background: var(--color-primary); flex-direction: column;
    padding: 80px 24px 40px; transition: right var(--transition-normal);
    border-left: 1px solid var(--color-border); z-index: 999;
  }
  .nav-links.open { right: 0; }
  .nav-toggle { display: flex; z-index: 1001; }
  .nav-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 998; opacity: 0; pointer-events: none; transition: opacity var(--transition-normal); }
  .nav-overlay.show { opacity: 1; pointer-events: auto; }
  .hero-title { font-size: 2.5rem; }
  .section-title { font-size: 2rem; }
  .stats-grid { grid-template-columns: repeat(2,1fr); }
  .stat-number { font-size: 3rem; }
  .companion-grid, .case-grid, .recruit-grid, .mode-grid { grid-template-columns: repeat(2,1fr); }
  .page-banner h1 { font-size: 2.25rem; }
  .process-steps { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 767px) {
  .hero-title { font-size: 1.75rem; letter-spacing: 1px; }
  .trust-logo-item { width: 90px; height: 55px; font-size: 0.75rem; }
  .page-banner { padding: 120px 0 60px; }
  .page-banner h1 { font-size: 1.75rem; }
  .page-banner p { font-size: 1rem; }
  .section { padding: 60px 0; }
  .section-title { font-size: 1.5rem; }
  .section-subtitle { font-size: 1rem; }
  .business-grid, .promo-grid, .companion-grid, .case-grid, .recruit-grid, .mode-grid, .service-flow { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2,1fr); gap: 16px; }
  .stat-number { font-size: 2.5rem; }
  .hero-cta { flex-direction: column; align-items: center; }
  .hero-cta .btn { width: 100%; max-width: 280px; }
  .companion-cta { flex-direction: column; align-items: center; }
  .companion-cta .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .process-steps { grid-template-columns: 1fr; }
  .platform-grid { gap: 20px; }
  .platform-item { width: 80px; height: 50px; font-size: 0.875rem; }
}

/* ---- Star & Check Icons ---- */
.star-icon { color: #FFD700; display: inline; }
.check-icon { color: var(--color-success); font-weight: 700; margin-right: 8px; display: inline; }

/* ---- WeChat Modal ---- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.7);
  z-index: 9998; display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity 0.4s ease;
  backdrop-filter: blur(4px);
}
.modal-overlay.show { opacity: 1; pointer-events: auto; }
.modal-box {
  background: var(--color-secondary); border-radius: var(--card-radius);
  padding: 48px 40px 40px; max-width: 400px; width: 90%;
  text-align: center; border: 1px solid var(--color-border);
  position: relative; transform: scale(0.9); transition: transform 0.4s ease;
}
.modal-overlay.show .modal-box { transform: scale(1); }
.modal-close {
  position: absolute; top: 16px; right: 16px; background: none;
  border: none; color: var(--color-text-weak); font-size: 1.5rem;
  cursor: pointer; width: 32px; height: 32px; display: flex;
  align-items: center; justify-content: center; border-radius: 50%;
  transition: all var(--transition-normal);
}
.modal-close:hover { background: rgba(255,255,255,0.1); color: #fff; }
.modal-box h3 { font-size: 1.25rem; margin-bottom: 8px; }
.modal-box p { font-size: 0.9375rem; color: var(--color-text-secondary); margin-bottom: 24px; }
.modal-qr {
  width: 200px; max-width: 100%; height: 200px; margin: 0 auto 20px;
  background: #fff; border-radius: 12px; padding: 12px;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.modal-qr img { width: 100%; height: 100%; object-fit: contain; }
.modal-wechat-id {
  font-size: 1.125rem; font-weight: 700; color: var(--color-accent);
  margin-bottom: 4px; letter-spacing: 1px;
}
.modal-wechat-label { font-size: 0.8125rem; color: var(--color-text-weak); }

/* ---- Social Media Icons (Footer) ---- */
.social-icon {
  width: 36px; height: 36px; border-radius: 8px; border: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; font-weight: 600; color: var(--color-text-weak);
  transition: all var(--transition-normal); text-decoration: none;
}
.social-icon:hover { border-color: var(--color-accent); color: var(--color-accent); background: rgba(255,107,53,0.1); }

/* ---- Solid Icon Box (replaces emoji in cards) ---- */
.icon-box {
  width: 48px; height: 48px; border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 16px; flex-shrink: 0;
}
.icon-box.orange { background: rgba(255,107,53,0.15); }
.icon-box.blue { background: rgba(0,212,255,0.15); }
.icon-box.gold { background: rgba(255,215,0,0.15); }
.icon-box.green { background: rgba(34,197,94,0.15); }
.icon-box svg { width: 24px; height: 24px; }

/* ============================================
   高档特效增强 - Premium Effects
   ============================================ */

/* ---- Hero Starfield ---- */
.hero-starfield {
  position: absolute; inset: 0;
  overflow: hidden;
  z-index: 3;
}
.hero-star {
  position: absolute;
  border-radius: 50%;
  background: #fff;
}
.hero-star.twinkle {
  animation: twinkle var(--duration) ease-in-out infinite;
  animation-delay: var(--delay);
}

@keyframes twinkle {
  0%, 100% { opacity: 0.5; transform: scale(0.8); box-shadow: 0 0 8px rgba(255,255,255,0.3); }
  50% { opacity: 1; transform: scale(1.3); box-shadow: 0 0 16px rgba(255,255,255,0.7); }
}
.hero-star.shooting {
  width: 2px !important; height: 2px !important;
  background: linear-gradient(to right, rgba(255,255,255,0), #fff, rgba(255,255,255,0.9));
  box-shadow: 0 0 12px rgba(255,255,255,0.6);
  animation: shoot var(--duration) linear infinite;
  animation-delay: var(--delay);
}

@keyframes shoot {
  0% { transform: translate(0, 0); opacity: 0; }
  5% { opacity: 1; box-shadow: 0 0 20px rgba(255,255,255,0.6); }
  25% { opacity: 0.9; }
  100% { transform: translate(-800px, 800px); opacity: 0; }
}

/* ---- Glowing Orbs ---- */
.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 2;
  animation: orbFloat 8s ease-in-out infinite;
}
.glow-orb:nth-child(1) {
  width: 400px; height: 400px;
  background: rgba(255,107,53,0.12);
  top: -100px; left: -100px;
  animation-delay: 0s;
}
.glow-orb:nth-child(2) {
  width: 350px; height: 350px;
  background: rgba(0,212,255,0.08);
  bottom: -80px; right: -80px;
  animation-delay: -3s;
}
.glow-orb:nth-child(3) {
  width: 250px; height: 250px;
  background: rgba(255,107,53,0.06);
  bottom: 30%; right: 20%;
  animation-delay: -6s;
}
@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.1); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* ---- Scan line overlay ---- */
.scan-lines {
  position: absolute; inset: 0; pointer-events: none;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 2px, rgba(255,255,255,0.02) 2px, rgba(255,255,255,0.02) 4px
  );
  z-index: 4;
}

/* ---- Hero entrance animation ---- */
.hero-content.premium-entrance .hero-title-line {
  opacity: 0;
  transform: translateY(60px);
  animation: premiumReveal 1s ease-out forwards;
}
.hero-content.premium-entrance .hero-title-line:nth-child(1) { animation-delay: 0.3s; }
.hero-content.premium-entrance .hero-title-line:nth-child(2) { animation-delay: 0.6s; }
.hero-content.premium-entrance .hero-subtitle {
  opacity: 0;
  animation: fadeUp 0.8s ease-out 0.9s forwards;
}
.hero-content.premium-entrance .hero-cta {
  opacity: 0;
  animation: fadeUp 0.8s ease-out 1.2s forwards;
}
@keyframes premiumReveal {
  0% { opacity: 0; transform: translateY(60px); }
  100% { opacity: 1; transform: translateY(0); }
}
@keyframes fadeUp {
  0% { opacity: 0; transform: translateY(30px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* ---- Glowing text shadow ---- */
.hero-title .hero-title-line {
  text-shadow:
    0 0 40px rgba(255,107,53,0.2),
    0 0 80px rgba(255,107,53,0.1),
    0 0 120px rgba(0,212,255,0.05);
}

/* ---- Section divider ---- */
.section-divider {
  position: relative;
  height: 80px;
  margin-top: -80px;
  z-index: 2;
  pointer-events: none;
}
.section-divider svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* ---- 3D Card Tilt ---- */
.tilt-card {
  will-change: transform;
  transition: transform 0.1s ease-out;
}
.tilt-card:hover {
  transform: translateY(-8px);
}

/* ---- Premium scroll reveal variants ---- */
.animate-fade-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: all 0.8s ease-out;
}
.animate-fade-left.visible {
  opacity: 1;
  transform: translateX(0);
}
.animate-fade-right {
  opacity: 0;
  transform: translateX(60px);
  transition: all 0.8s ease-out;
}
.animate-fade-right.visible {
  opacity: 1;
  transform: translateX(0);
}
.animate-scale {
  opacity: 0;
  transform: scale(0.85);
  transition: all 0.8s ease-out;
}
.animate-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* ---- Gradient border cards ---- */
.card.gradient-border {
  border: 1px solid transparent;
  background-clip: padding-box;
  position: relative;
}
.card.gradient-border::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(255,107,53,0.3), rgba(0,212,255,0.1), rgba(255,107,53,0.05));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  transition: opacity var(--transition-normal);
  opacity: 0;
}
.card.gradient-border:hover::before {
  opacity: 1;
}

/* ---- Divider line animation ---- */
.section-title.premium::after {
  width: 0;
  animation: lineExpand 1.5s ease-out forwards;
}
.section-title.premium.visible::after {
  width: 60px;
}
@keyframes lineExpand {
  from { width: 0; }
  to { width: 60px; }
}

/* ---- Stats with glow ---- */
.stat-item.glow-stat {
  position: relative;
}
.stat-item.glow-stat::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 120%;
  height: 120%;
  transform: translate(-50%, -50%);
  background: radial-gradient(ellipse, rgba(255,107,53,0.06), transparent 70%);
  pointer-events: none;
}

/* ---- Hero subtitle glow ---- */
.hero-subtitle-glow {
  display: inline-block;
  background: linear-gradient(90deg, var(--color-text-secondary), var(--color-tech), var(--color-text-secondary));
  background-size: 200% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 3s ease-in-out infinite;
}
@keyframes shimmer {
  0%, 100% { background-position: 200% 0; }
  50% { background-position: 0 0; }
}

/* ---- Responsive tweaks for premium ---- */
@media (max-width: 767px) {
  .glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 2;
  animation: orbFloat 8s ease-in-out infinite;
}
  .section-divider { height: 40px; margin-top: -40px; }
}