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

:root {
  --primary-color: #4f46e5;
  --primary-hover: #4338ca;
  --accent-color: #06b6d4;
  --text-dark: #1e293b;
  --text-light: #64748b;
  --bg-light: #f8fafc;
  --bg-white: #ffffff;
  --border-color: #e2e8f0;
  --gradient-primary: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
  --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

html { overflow-x: hidden; scroll-behavior: smooth; scroll-padding-top: 64px; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif; line-height: 1.6; color: var(--text-dark); background: var(--bg-white); overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; }
button, input, select, textarea { font: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

.landing-header { position: fixed; inset: 0 0 auto; z-index: 20; padding: 0; background: rgba(255,255,255,.8); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid rgba(255,255,255,.3); box-shadow: 0 4px 20px rgb(31 38 135 / 0.08); transition: all .3s ease; }
.landing-header.is-scrolled { box-shadow: 0 10px 25px rgb(31 38 135 / 0.12); }
.landing-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 9px 20px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--text-dark); }
.logo { width: 32px; height: 32px; }
.brand-name { font-size: 1rem; font-weight: 700; }
.nav-menu { display: flex; gap: 22px; }
.nav-menu a { color: var(--text-light); font-weight: 500; font-size: .96rem; position: relative; }
.nav-menu a:hover { color: var(--primary-color); }
.nav-menu a::after { content: ""; position: absolute; left: 0; bottom: -5px; width: 0; height: 2px; background: var(--primary-color); transition: width .25s ease; }
.nav-menu a:hover::after { width: 100%; }

.hero { 
  padding: 118px 0 94px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #667eea 100%);
  background-size: 200% 200%;
  animation: gradientBG 20s ease infinite;
  color: white;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.floating-shapes { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.floating-shapes .shape { position: absolute; border-radius: 50%; }
.shape-1 { top: -15%; left: -8%; width: 380px; height: 380px; background: rgba(255,255,255,.08); border-radius: 0 0 100% 0; }
.shape-1::before { content: ""; position: absolute; top: 20px; left: 20px; right: -20px; bottom: -20px; border: 2px solid rgba(255,255,255,.12); border-radius: 0 0 100% 0; }
.shape-2 { bottom: -18%; right: -10%; width: 420px; height: 420px; background: rgba(255,255,255,.06); border-radius: 100% 0 0 0; }
.shape-2::before { content: ""; position: absolute; top: -20px; left: -20px; right: 20px; bottom: 20px; border: 2px solid rgba(255,255,255,.1); border-radius: 100% 0 0 0; }
.shape-3 { top: 28%; left: 9%; width: 120px; height: 120px; background: rgba(255,255,255,.08); border-radius: 38px; transform: rotate(12deg); }
.shape-4 { top: 22%; right: 14%; width: 160px; height: 160px; background: rgba(255,255,255,.08); clip-path: polygon(50% 0%, 0% 100%, 100% 100%); transform: rotate(18deg); }
.shape-5 { bottom: 24%; left: 20%; width: 100px; height: 100px; border: 3px solid rgba(255,255,255,.1); background: transparent; }
.shape-6 { top: 18%; right: 28%; width: 16px; height: 16px; background: rgba(255,255,255,.3); box-shadow: -40px 80px rgba(255,255,255,.18), 80px 140px rgba(255,255,255,.16), -120px 200px rgba(255,255,255,.12); }
.shape-7 { bottom: 16%; right: 18%; width: 160px; height: 160px; border: 2px dashed rgba(255,255,255,.12); }
@keyframes gradientBG { 0% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } 100% { background-position: 0% 50%; } }
.hero-content { position: relative; z-index: 1; text-align: center; margin: 0 auto; }
.hero-title { display: block; font-size: 3.25rem; font-weight: 800; line-height: 1.04; margin-bottom: 18px; text-shadow: 0 10px 30px rgba(0,0,0,.2); letter-spacing: -1px; }
.hero-subtitle { font-size: 1.5rem; margin-bottom: 15px; opacity: .95; font-weight: 700; }
.hero-description { font-size: 1.1rem; margin-bottom: 40px; opacity: .9; max-width: 700px; margin-inline: auto; }
.hero-stats { display: flex; justify-content: center; gap: 60px; flex-wrap: nowrap; }
.stat-item { text-align: center; padding: 0; border-radius: 0; background: none; border: 0; box-shadow: none; min-width: 0; }
.stat-value { font-size: 2rem; font-weight: 700; margin-bottom: 5px; line-height: 1.1; white-space: nowrap; }
.stat-label { font-size: .9rem; opacity: .9; font-weight: 600; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 15px 30px; border-radius: 999px; font-weight: 700; border: none; cursor: pointer; transition: all .3s ease; }
.btn-large { min-width: 220px; }
.btn-primary { background: white; color: var(--primary-color); box-shadow: var(--shadow-lg); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: var(--shadow-xl); }
.btn-secondary { background: rgba(255,255,255,.12); color: white; border: 1px solid rgba(255,255,255,.2); }
.btn-secondary:hover { background: rgba(255,255,255,.2); transform: translateY(-3px); }
.btn-card { width: 100%; min-height: 54px; padding: 0 20px; background: linear-gradient(135deg, #4f66c8 0%, #3953ad 100%); color: white; border: 1px solid rgba(79,102,200,.24); box-shadow: 0 18px 30px rgb(79 102 200 / 0.18); }
.btn-card:hover { transform: translateY(-2px); box-shadow: 0 22px 38px rgb(79 102 200 / 0.22); background: linear-gradient(135deg, #5a72d8 0%, #425dbd 100%); }
.btn-card--soft { background: linear-gradient(135deg, #5c73d6 0%, #4761c1 100%); border-color: rgba(92,115,214,.24); box-shadow: 0 14px 24px rgb(92 115 214 / 0.16); }
.btn-card--soft:hover { background: linear-gradient(135deg, #6780e1 0%, #526dcd 100%); }
.btn-card--dark { background: linear-gradient(135deg, rgba(115, 142, 255, .28) 0%, rgba(85, 111, 222, .24) 100%); border-color: rgba(255,255,255,.18); box-shadow: none; }
.btn-card--dark:hover { background: linear-gradient(135deg, rgba(129, 156, 255, .34) 0%, rgba(96, 123, 235, .3) 100%); }
.btn-card--dark-alt { background: linear-gradient(135deg, rgba(125, 153, 255, .2) 0%, rgba(96, 123, 235, .16) 100%); border-color: rgba(255,255,255,.14); box-shadow: none; color: rgba(255,255,255,.94); }
.btn-card--dark-alt:hover { background: linear-gradient(135deg, rgba(139, 167, 255, .26) 0%, rgba(107, 134, 245, .22) 100%); }
.entry-section { margin-top: -54px; padding-bottom: 80px; position: relative; z-index: 2; }
.entry-grid { display: grid; gap: 26px; }
.entry-grid--primary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.entry-grid--downloads { grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 26px; }
.entry-card { background: linear-gradient(180deg, #eef4ff 0%, #dce8ff 100%); border: 1px solid rgba(99, 102, 241, .2); border-radius: 28px; padding: 30px 28px; box-shadow: var(--shadow-xl); min-height: 248px; display: flex; flex-direction: column; }
.entry-card--router { position: relative; background: linear-gradient(180deg, #e6f1ff 0%, #cfe2ff 100%); }
.entry-card--windows { background: linear-gradient(180deg, #e8f2ff 0%, #d4e5ff 100%); padding-bottom: 16px; }
.entry-card--cyan { background: linear-gradient(135deg, #0f172a 0%, #164e63 100%); color: white; }
.entry-card--muted { background: linear-gradient(180deg, #edf1ff 0%, #dfe6ff 100%); }
.entry-card--mac { background: linear-gradient(180deg, #f0efff 0%, #e0dcff 100%); }
.entry-card--linux { background: linear-gradient(180deg, #ecf4ff 0%, #d9e8ff 100%); }
.entry-card--platforms-group { background: linear-gradient(180deg, #eff2ff 0%, #e0e7ff 100%); padding-inline: 22px; }
.entry-card__head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 22px; }
.entry-card__tag { display: inline-flex; align-items: center; min-height: 34px; padding: 0 14px; border-radius: 999px; background: rgba(79,70,229,.1); color: var(--primary-color); font-weight: 600; }
.entry-card--cyan .entry-card__tag { background: rgba(255,255,255,.14); color: white; }
.entry-card__head img { width: 44px; height: 44px; }
.entry-card__icon { width: 44px; height: 44px; object-fit: contain; }
.entry-card__icon--round { border-radius: 12px; }
.entry-card__icon--finder { mix-blend-mode: multiply; border-radius: 12px; }
.entry-card__symbol { font-size: 2rem; font-weight: 800; color: #67e8f9; line-height: 1; }
.entry-card h2 { font-size: 2rem; line-height: 1.01; margin-bottom: 4px; }
.entry-card p { color: var(--text-light); margin-bottom: 24px; max-width: 26ch; }
.entry-card--cyan p { color: rgba(255,255,255,.76); }
.entry-card__single-line { max-width: none !important; white-space: nowrap; }
.entry-card__meta { min-height: 3.2em; }
.entry-card__download-meta { margin-bottom: 14px; color: #5f6f97; font-size: .97rem; line-height: 1; white-space: nowrap; }
.entry-card__inline-meta { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 24px; }
.entry-card__inline-meta p { margin: 0; flex: 1 1 auto; max-width: none; }
.entry-card--router .entry-card__subtle-copy { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; color: #6b7397; font-size: .92rem; white-space: nowrap; }
.entry-card__subtle-copy code { font-family: inherit; }
.mini-copy-button { border: none; background: transparent; color: var(--primary-color); font-weight: 700; cursor: pointer; padding: 0; }
.mini-copy-button:hover { color: var(--primary-hover); }
.btn-disabled { width: 100%; min-height: 54px; background: #d8def3; color: #707b9b; cursor: default; pointer-events: none; }
.entry-card .btn, .entry-card .btn-disabled { margin-top: auto; }
.entry-card__actions { margin-top: auto; display: flex; align-items: center; gap: 14px; flex-wrap: nowrap; }
.entry-card__actions .btn { margin-top: 0; }
.entry-card__actions .entry-card__hint + .entry-card__hint { margin-left: -2px; }
.entry-card__stack { margin-top: auto; display: grid; gap: 12px; }
.entry-card__stack--erp { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.entry-card__stack .btn { margin-top: 0; }
.platform-downloads { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; height: 100%; }
.entry-card--platforms-group .platform-downloads { grid-template-columns: 1fr; }
.platform-download { display: flex; flex-direction: column; justify-content: center; min-height: 84px; padding: 14px 14px; border-radius: 20px; background: rgba(255,255,255,.45); border: 1px solid rgba(99,102,241,.12); }
.platform-download__head { display: flex; align-items: center; gap: 14px; width: 100%; min-height: 44px; }
.platform-download__head--compact { justify-content: flex-start; gap: 8px; min-height: 44px; }
.platform-download:has(.platform-download__head--compact) { min-height: 0; }
.platform-download__label { display: inline-flex; align-items: center; gap: 12px; flex: 1 1 auto; min-width: 0; }
.platform-download__head--compact .entry-card__icon {
  width: 34px;
  height: 34px;
  min-width: 34px;
  flex: 0 0 34px;
}
.platform-download__head--compact .platform-download__label { gap: 4px; }
.platform-download__head--compact .entry-card__tag { min-height: 34px; padding: 0 12px; line-height: 1; }
.platform-download__status { margin-left: auto; color: #7180a6; font-weight: 700; white-space: nowrap; }
.platform-download .btn, .platform-download .btn-disabled { margin-top: auto; }
.platform-download__head--compact .btn, .platform-download__head--compact .btn-disabled { margin-top: 0; }
.platform-download__head--compact .btn,
.platform-download__head--compact .btn-disabled,
.platform-download__head--compact .platform-download__status {
  margin-left: 0;
  margin-top: 0;
  margin-left: auto;
  flex: 0 0 auto;
  align-self: center;
}
.platform-download .btn-disabled { width: auto; min-height: 0; padding: 0; background: transparent; color: #7180a6; }
.platform-download .entry-card__tag { white-space: nowrap; }
.platform-download .btn.btn-card--mini { margin-left: auto; align-self: center; flex: 0 0 auto; min-width: 96px; width: auto; min-height: 34px; padding: 0 16px; box-shadow: none; white-space: nowrap; line-height: 1; }
.ios-download-panel__body { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 34px; align-items: center; }
.ios-download-panel__qr { width: 280px; height: 280px; border-radius: 24px; background: white; padding: 16px; box-shadow: var(--shadow-md); }
.ios-download-panel__copy h2 { font-size: 2rem; margin-bottom: 16px; color: white; }
.ios-download-panel__copy p { max-width: 30ch; margin-bottom: 24px; color: rgba(255,255,255,.86); line-height: 1.7; }
.entry-card__hint { flex-shrink: 0; color: var(--primary-color); font-weight: 700; text-decoration: none; white-space: nowrap; }
.entry-card__hint:hover { color: var(--primary-hover); }
.entry-card__hint--inline { white-space: nowrap; }
.entry-card p.entry-card__fallback-note {
  margin: 10px 0 0;
  color: #64748b;
  font-size: .82rem;
  line-height: 1.5;
  max-width: none !important;
  white-space: nowrap;
}

.more-services { padding-bottom: 80px; text-align: center; }
.more-services-content {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 60px 40px;
  border-radius: 24px;
  color: white;
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
}
.more-services-content::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.more-services-content h3, .more-services-content p, .more-services-content .btn { position: relative; z-index: 1; }
.more-services-content h3 { font-size: 2rem; margin-bottom: 15px; }
.more-services-content p { font-size: 1.2rem; margin-bottom: 30px; opacity: .9; }
.icon-arrow { width: 20px; height: 20px; }

.section-title { font-size: 2.6rem; text-align: center; margin-bottom: 12px; color: var(--text-dark); }
.section-subtitle { text-align: center; color: var(--text-light); font-size: 1.1rem; margin-bottom: 48px; }

.wechat-mini { padding: 80px 0; background: white; position: relative; overflow: hidden; }
.wechat-mini::before { content: ""; position: absolute; top: -50px; right: -50px; width: 200px; height: 200px; border: 2px solid rgba(79,70,229,.1); border-radius: 50%; }
.wechat-mini::after { content: ""; position: absolute; bottom: -30px; left: 10%; width: 120px; height: 120px; background: radial-gradient(circle, rgba(6,182,212,.12), transparent 70%); border-radius: 50%; }
.wechat-content { display: grid; grid-template-columns: 1.5fr 1fr; gap: 60px; align-items: center; }
.wechat-features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.wechat-feature { text-align: center; }
.feature-icon-wrapper { width: 80px; height: 80px; margin: 0 auto 20px; background: linear-gradient(135deg, #00bfff 0%, #1e90ff 100%); border-radius: 20px; display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-md); position: relative; overflow: hidden; }
.feature-svg-icon { width: 40px; height: 40px; stroke: white; }
.wechat-feature h3 { font-size: 1.2rem; margin-bottom: 10px; }
.wechat-feature p { color: var(--text-light); }
.wechat-qr { display: flex; justify-content: center; align-items: center; }
.qr-placeholder { width: 280px; height: 280px; background: linear-gradient(135deg, #00bfff 0%, #1e90ff 100%); border-radius: 20px; display: flex; flex-direction: column; justify-content: center; align-items: center; color: white; box-shadow: var(--shadow-xl); }
.qr-placeholder.qr-tall { height: 360px; }
.qr-svg-icon { width: 120px; height: 120px; margin-bottom: 20px; object-fit: contain; }
.qr-placeholder p { font-size: 1.25rem; font-weight: 600; margin: 5px 0; }
.qr-subtitle { font-size: 1rem !important; opacity: .92; }

.partner { padding: 80px 0; background: var(--bg-light); position: relative; overflow: hidden; }
.partner::before { content: ""; position: absolute; top: 20%; right: -100px; width: 250px; height: 250px; background: radial-gradient(circle, rgba(118,75,162,.06) 0%, transparent 70%); border-radius: 50%; }
.partner::after { content: ""; position: absolute; bottom: 10%; left: -80px; width: 180px; height: 180px; border: 3px solid rgba(79,70,229,.08); border-radius: 50%; }
.business-value { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; margin-bottom: 60px; }
.value-card { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 40px 30px; border-radius: 16px; text-align: center; box-shadow: var(--shadow-md); }
.value-icon { width: 64px; height: 64px; margin-bottom: 20px; display: inline-block; stroke: white; stroke-width: 1.5; fill: none; }
.value-card h3 { font-size: 1.5rem; margin-bottom: 15px; }
.value-card p { opacity: .95; }
.partner-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 40px; margin-bottom: 60px; }
.partner-card { background: white; padding: 40px; border-radius: 16px; box-shadow: var(--shadow-md); position: relative; }
.partner-number { position: absolute; top: -20px; left: 40px; width: 60px; height: 60px; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; font-weight: 700; box-shadow: var(--shadow-md); }
.partner-card h3 { font-size: 1.5rem; margin: 20px 0; }
.partner-card ul { list-style: none; }
.partner-card ul li { padding: 10px 0 10px 25px; color: var(--text-light); position: relative; line-height: 1.6; }
.partner-card ul li::before { content: "▸"; position: absolute; left: 0; color: var(--primary-color); font-weight: bold; }

.enhanced-cta { background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%) !important; color: white !important; padding: 55px 30px !important; text-align: center; position: relative; overflow: hidden; border-radius: 20px; box-shadow: var(--shadow-xl); }
.enhanced-cta::before { content: ""; position: absolute; inset: 0; background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E"); }
.cta-content { position: relative; z-index: 1; max-width: 720px; margin: 0 auto; }
.cta-title { font-size: 2rem; margin-bottom: 12px; }
.cta-desc { font-size: 1.05rem; opacity: .9; margin-bottom: 28px; }
.contact-row { display: inline-flex; align-items: stretch; gap: 15px; margin-bottom: 10px; }
.contact-highlight { background: rgba(255,255,255,.1); backdrop-filter: blur(10px); border: 1px solid rgba(255,255,255,.2); border-radius: 16px; padding: 20px 30px; display: inline-flex; align-items: center; gap: 20px; min-height: 100px; }
.contact-icon-box { width: 60px; height: 60px; background: white; border-radius: 12px; display: flex; align-items: center; justify-content: center; color: var(--primary-color); flex-shrink: 0; }
.icon-phone-large { width: 32px; height: 32px; }
.contact-details { text-align: left; }
.contact-label { display: block; font-size: .9rem; opacity: .8; margin-bottom: 4px; }
.contact-number { color: white; font-size: 1.8rem; font-weight: 700; }
.btn-online-msg { display: inline-flex; align-items: center; justify-content: center; min-width: 150px; min-height: 100px; padding: 0 24px; border-radius: 16px; border: 1px solid rgba(255,255,255,.2); background: rgba(255,255,255,.12); color: white; font-weight: 700; }
.btn-online-msg svg { width: 22px; height: 22px; }
.btn-online-msg:hover { background: rgba(255,255,255,.2); border-color: rgba(255,255,255,.4); color: white; transform: translateY(-3px); }
.company-badge { display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px; background: rgba(0,0,0,.2); border-radius: 20px; font-size: .85rem; opacity: .8; }
.company-location { display: inline-flex; align-items: center; gap: 8px; color: rgba(255,255,255,.9); transition: all .3s ease; }
.company-location:hover { color: white; transform: translateY(-2px); }
.icon-location { width: 16px; height: 16px; flex-shrink: 0; }
.map-hint { opacity: .7; transition: transform .3s ease, opacity .3s ease; }
.company-location:hover .map-hint { opacity: 1; transform: translateX(4px); }

.guide-shell { width: min(920px, calc(100% - 32px)); margin: 0 auto; padding: 96px 0 60px; }
.guide-hero { padding: 30px; border-radius: 24px; background: linear-gradient(135deg, #5861b8 0%, #6f84dc 52%, #7da1e8 100%); color: white; box-shadow: var(--shadow-xl); }
.guide-hero--soft { background: linear-gradient(135deg, #2a2f70 0%, #5b58b6 55%, #6f87dd 100%); }
.guide-hero h1 { font-size: 2.8rem; line-height: 1.05; margin: 12px 0; }
.guide-lead { opacity: .9; }
.eyebrow { display: inline-flex; align-items: center; min-height: 36px; padding: 0 12px; border-radius: 999px; background: rgba(255,255,255,.1); color: rgba(255,255,255,.86); font-size: .92rem; }
.install-card { margin-top: 22px; padding: 18px; border-radius: 18px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); }
.install-card__label { margin-bottom: 10px; color: rgba(255,255,255,.76); }
.install-copy { display: flex; gap: 10px; align-items: center; }
.install-copy code { flex: 1; display: block; padding: 14px 16px; border-radius: 14px; background: rgba(255,255,255,.18); border: 1px solid rgba(255,255,255,.28); color: white; backdrop-filter: blur(10px); font-size: 1rem; line-height: 1.35; }
.copy-button { min-width: 84px; min-height: 48px; padding: 0 16px; border-radius: 14px; border: none; background: white; color: var(--primary-color); font-weight: 700; font-size: .96rem; cursor: pointer; }
.tutorial-section { margin-top: 18px; padding: 22px; border-radius: 20px; background: linear-gradient(180deg, #365270 0%, #2a425c 100%); color: white; box-shadow: var(--shadow-lg); }
.tutorial-section--light { background: linear-gradient(180deg, #27485f 0%, #2f6d8b 100%); }
.tutorial-head { display: grid; grid-template-columns: 44px minmax(0,1fr); gap: 14px; align-items: start; margin-bottom: 14px; }
.step-index { width: 36px; height: 36px; display: inline-flex; align-items: center; justify-content: center; border-radius: 999px; background: rgba(255,255,255,.12); font-size: .88rem; font-weight: 700; }
.tutorial-head h2 { font-size: 1.4rem; margin-bottom: 6px; }
.tutorial-head p { color: rgba(255,255,255,.74); }
.tutorial-shot { display: block; width: 100%; border-radius: 14px; box-shadow: var(--shadow-md); }
.smartscreen-shot { border-radius: 20px; padding: 22px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14); }
.smartscreen-shot__window { position: relative; min-height: 420px; padding: 26px 26px 34px; border-radius: 18px; background: #1f7485; color: white; box-shadow: inset 0 0 0 1px rgba(255,255,255,.18); }
.smartscreen-shot__window h3 { font-size: 2rem; margin-bottom: 18px; }
.smartscreen-shot__window p { max-width: 480px; line-height: 1.65; font-size: 1.08rem; }
.smartscreen-shot__link { display: inline-block; margin-top: 14px; color: white; text-decoration: underline; font-weight: 700; }
.smartscreen-shot__meta { margin-top: 20px; display: grid; gap: 10px; font-size: 1.05rem; }
.smartscreen-shot__actions { position: absolute; right: 28px; bottom: 26px; display: flex; gap: 18px; }
.smartscreen-shot__actions--double { gap: 14px; }
.smartscreen-shot__ghost,
.smartscreen-shot__run { min-width: 108px; min-height: 40px; border: none; background: white; color: #0f172a; font-weight: 700; }
.smartscreen-shot__run { min-width: 120px; }
.smartscreen-shot__close { position: absolute; top: 0; right: 0; width: 44px; height: 34px; border: none; background: white; color: #111827; font-size: 1.5rem; line-height: 1; }
.inline-code { padding: .08rem .4rem; border-radius: 8px; background: rgba(255,255,255,.1); }

.footer { background: var(--text-dark); color: white; padding: 60px 0 30px; position: relative; overflow: hidden; }
.footer::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, #4f46e5, #7c3aed, #06b6d4, #4f46e5); background-size: 200% 100%; animation: gradientLine 3s linear infinite; }
.footer::after { content: ""; position: absolute; top: -150px; right: -100px; width: 300px; height: 300px; background: radial-gradient(circle, rgba(79,70,229,.08) 0%, transparent 70%); border-radius: 50%; }
@keyframes gradientLine { 0% { background-position: 0% 0; } 100% { background-position: 200% 0; } }
.footer-content { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 40px; margin-bottom: 40px; }
.footer-section h4 { font-size: 1.2rem; margin-bottom: 20px; }
.footer-section p, .footer-section li, .footer-section a { color: rgba(255,255,255,.7); }
.footer-section ul { list-style: none; }
.footer-section ul li { margin-bottom: 10px; }
.footer-section a:hover { color: white; }
.footer-bottom { text-align: center; padding-top: 30px; border-top: 1px solid rgba(255,255,255,.1); color: rgba(255,255,255,.5); }
.footer-bottom p { margin: 8px 0; }
.footer--guide { margin-top: 64px; }
.footer__inner { width: min(1200px, calc(100% - 40px)); margin: 0 auto; }
.footer__content { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; margin-bottom: 36px; }
.footer__section h4 { font-size: 1.2rem; margin-bottom: 18px; }
.footer__section p, .footer__section li, .footer__section a { color: rgba(255,255,255,.72); }
.footer__section ul { list-style: none; }
.footer__section li { margin-bottom: 10px; line-height: 1.7; }
.footer__section a:hover { color: #fff; }
.footer__bottom { text-align: center; padding-top: 28px; border-top: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.54); }
.footer__bottom p { margin: 8px 0; }
.landing-page .footer--guide { margin-top: 0; }
.back-to-top {
  position: fixed;
  right: 30px;
  bottom: 30px;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 50%;
  background: linear-gradient(135deg, #5a49f0 0%, #4d44e8 100%);
  color: #fff;
  box-shadow: 0 14px 30px rgb(77 68 232 / 0.3);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .3s ease, visibility .3s ease, transform .3s ease, background .3s ease;
  z-index: 999;
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: linear-gradient(135deg, #6657f4 0%, #584ff0 100%);
  transform: translateY(-4px);
}
.back-to-top svg {
  width: 22px;
  height: 22px;
}
.phone-link, .icp-link, .admin-link { color: inherit; transition: color .3s ease; }
.phone-link:hover, .icp-link:hover, .admin-link:hover { color: #fff; }
.record-text { color: inherit; }
.footer-record-sep, .admin-link-separator { margin: 0 8px; opacity: .42; }
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.6); backdrop-filter: blur(5px); z-index: 2000; display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transition: all .3s ease; }
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal-content { background: white; border-radius: 24px; padding: 30px; max-width: 450px; width: 90%; max-height: 85vh; overflow-y: auto; transform: scale(.9) translateY(20px); transition: all .4s cubic-bezier(.175,.885,.32,1.275); box-shadow: 0 25px 50px rgba(0,0,0,.25); }
.modal-overlay.active .modal-content { transform: scale(1) translateY(0); }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.modal-title { font-size: 1.25rem; font-weight: 700; color: var(--text-dark); }
.modal-close { width: 36px; height: 36px; border: none; background: var(--bg-light); border-radius: 50%; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all .3s ease; }
.modal-close:hover { background: var(--primary-color); color: white; transform: rotate(90deg); }
.modal-close svg { width: 18px; height: 18px; }
.form-group { margin-bottom: 14px; }
.form-label { display: block; margin-bottom: 6px; font-weight: 600; color: var(--text-dark); font-size: .9rem; }
.form-label .required { color: #ef4444; }
.form-input,
.form-select,
.form-textarea { width: 100%; padding: 10px 14px; border: 2px solid var(--border-color); border-radius: 10px; font-size: .95rem; transition: all .3s ease; background: white; }
.form-input:focus,
.form-select:focus,
.form-textarea:focus { outline: none; border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(79,70,229,.1); }
.form-textarea { min-height: 80px; resize: vertical; }
.form-select { cursor: pointer; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; background-size: 20px; }
.form-submit { width: 100%; padding: 12px; background: var(--gradient-primary); color: white; border: none; border-radius: 10px; font-size: 1rem; font-weight: 600; cursor: pointer; transition: all .3s ease; margin-top: 6px; }
.form-submit:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.form-submit:disabled { opacity: .7; cursor: not-allowed; transform: none; }
.form-submit .loading-spinner { display: inline-block; width: 20px; height: 20px; border: 2px solid rgba(255,255,255,.3); border-top-color: white; border-radius: 50%; animation: spin .8s linear infinite; margin-right: 10px; vertical-align: middle; }
@keyframes spin { to { transform: rotate(360deg); } }
.success-message { text-align: center; padding: 40px 20px; }
.success-icon { width: 80px; height: 80px; margin: 0 auto 20px; background: var(--gradient-success); border-radius: 50%; display: flex; align-items: center; justify-content: center; animation: successPop .5s cubic-bezier(.175,.885,.32,1.275); }
@keyframes successPop { 0% { transform: scale(0); } 50% { transform: scale(1.2); } 100% { transform: scale(1); } }
.success-icon svg { width: 40px; height: 40px; stroke: white; stroke-width: 3; }
.success-title { font-size: 1.5rem; font-weight: 700; color: var(--text-dark); margin-bottom: 10px; }
.success-desc { color: var(--text-light); margin-bottom: 30px; }
.reveal { opacity: 0; transform: translateY(50px); transition: all .8s cubic-bezier(.175,.885,.32,1.275); }
.reveal.revealed { opacity: 1; transform: translateY(0); }

@media (max-width: 960px) {
  .hero-title { font-size: 2.55rem; }
  .hero-stats { gap: 28px; flex-wrap: wrap; }
  .contact-row { flex-direction: column; align-items: center; }
  .entry-grid--primary { grid-template-columns: 1fr; }
  .entry-grid--downloads { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .platform-downloads { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .wechat-content, .wechat-features { grid-template-columns: 1fr; }
  .footer__content { grid-template-columns: 1fr; gap: 28px; }
  .contact-row { flex-direction: column; align-items: center; margin-bottom: 35px; }
  .contact-highlight { min-height: auto; padding: 18px 25px; }
  .btn-online-msg { min-height: auto; padding: 15px 35px; flex-direction: row; gap: 10px; }
}

@media (max-width: 680px) {
  html { scroll-padding-top: 58px; }
  .hero { padding: 108px 0 78px; }
  .hero-title { font-size: 2.15rem; }
  .hero-subtitle { font-size: 1.18rem; }
  .hero-stats { flex-direction: column; gap: 24px; }
  .stat-value { font-size: 2rem; white-space: normal; }
  .landing-header__inner { gap: 10px; padding: 8px 16px; }
  .brand { gap: 10px; }
  .brand-name { font-size: 1rem; }
  .logo { width: 28px; height: 28px; }
  .back-to-top {
    right: 20px;
    bottom: 20px;
    width: 46px;
    height: 46px;
  }
  .nav-menu { gap: 12px; flex-wrap: wrap; justify-content: flex-end; }
  .nav-menu a { font-size: .96rem; }
  .entry-grid--primary, .entry-grid--downloads { grid-template-columns: 1fr; }
  .entry-card__single-line { white-space: normal; }
  .entry-card__actions { align-items: stretch; flex-wrap: wrap; }
  .entry-card__inline-meta { flex-direction: column; align-items: flex-start; gap: 10px; }
  .entry-card--router .entry-card__subtle-copy { align-self: flex-start; }
  .platform-downloads { grid-template-columns: 1fr; }
  .platform-download__head--compact { gap: 8px; min-height: 0; }
  .platform-download__status { margin-left: 0; }
  .entry-card--platforms-group { padding-inline: 16px; }
  .platform-download { padding: 12px 12px; }
  .platform-download__head--compact .platform-download__label { gap: 6px; }
  .entry-card__stack--erp { grid-template-columns: 1fr; }
  .install-copy { flex-direction: column; align-items: stretch; }
  .copy-button, .btn, .btn-online-msg { width: 100%; }
  .ios-download-panel__body { grid-template-columns: 1fr; }
  .ios-download-panel__qr { width: min(280px, 100%); height: auto; }
  .tutorial-head { grid-template-columns: 1fr; }
  .smartscreen-shot__window { min-height: 360px; padding: 20px 20px 92px; }
  .smartscreen-shot__window h3 { font-size: 1.7rem; }
  .smartscreen-shot__actions { left: 20px; right: 20px; bottom: 20px; justify-content: flex-end; flex-wrap: wrap; }
  .footer__inner { width: calc(100% - 24px); }
  .contact-highlight { padding: 15px 20px; gap: 15px; }
  .contact-icon-box { width: 50px; height: 50px; }
  .icon-phone-large { width: 26px; height: 26px; }
  .contact-number { font-size: 1.4rem; }
  .contact-label { font-size: .8rem; }
  .modal-content { padding: 30px 20px; margin: 20px; }
  .modal-title { font-size: 1.1rem; }
}