:root {
  --primary: #1677FF;
  --primary-dark: #0958d9;
  --primary-light: #4096ff;
  --accent: #00D4AA;
  --accent2: #FF6B35;
  --dark: #0a0f1e;
  --dark2: #111827;
  --dark3: #1f2937;
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --border: rgba(255,255,255,0.08);
  --card-bg: rgba(255,255,255,0.04);
  --gradient: linear-gradient(135deg, #1677FF 0%, #00D4AA 100%);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
  background: var(--dark);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.6;
}

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--dark); }
::-webkit-scrollbar-thumb { background: #374151; border-radius: 3px; }

/* ========== NAV ========== */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: 64px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 5%;
  background: rgba(10, 15, 30, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: all .3s;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none;
}
.nav-logo-icon {
  width: 36px; height: 36px; border-radius: 8px;
  background: var(--gradient);
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: 16px; color: white;
}
.nav-logo-text { font-size: 17px; font-weight: 700; color: white; }
.nav-logo-text span { color: var(--accent); }
.nav-links {
  display: flex; align-items: center; gap: 32px;
  list-style: none;
}
.nav-links a {
  color: var(--text-secondary); text-decoration: none;
  font-size: 14px; font-weight: 500;
  transition: color .2s;
}
.nav-links a:hover { color: white; }
.nav-cta {
  display: flex; gap: 10px;
}
.btn-primary {
  padding: 8px 20px; border-radius: 6px;
  background: var(--primary); color: white;
  font-size: 14px; font-weight: 600;
  text-decoration: none; border: none; cursor: pointer;
  transition: all .2s;
  white-space: nowrap;
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn-outline {
  padding: 8px 20px; border-radius: 6px;
  background: transparent; color: white;
  font-size: 14px; font-weight: 600;
  text-decoration: none; border: 1px solid rgba(255,255,255,0.2); cursor: pointer;
  transition: all .2s; white-space: nowrap;
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

/* ========== SECTION COMMONS ========== */
section { padding: 100px 5%; }
.section-tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 14px; border-radius: 20px;
  background: rgba(22,119,255,0.12);
  border: 1px solid rgba(22,119,255,0.25);
  color: var(--primary-light); font-size: 12px; font-weight: 600;
  letter-spacing: 0.05em; text-transform: uppercase;
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800; line-height: 1.2;
  margin-bottom: 16px;
}
.section-title .highlight {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-desc {
  font-size: 16px; color: var(--text-secondary);
  max-width: 640px; line-height: 1.8;
}
.section-header { margin-bottom: 60px; }
.section-header.center { text-align: center; }
.section-header.center .section-desc { margin: 0 auto; }

/* ========== HERO ========== */
#hero {
  min-height: 100vh;
  display: flex; align-items: center;
  padding-top: 64px;
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 60% 30%, rgba(22,119,255,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 20% 80%, rgba(0,212,170,0.08) 0%, transparent 60%),
    var(--dark);
}
.hero-grid {
  position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(22,119,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22,119,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 60% 40%, black 0%, transparent 80%);
}
.hero-content { position: relative; z-index: 1; max-width: 580px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; border-radius: 20px;
  background: rgba(0,212,170,0.1); border: 1px solid rgba(0,212,170,0.3);
  color: var(--accent); font-size: 13px; font-weight: 600;
  margin-bottom: 28px;
}
.hero-badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(1.3)} }
.hero-title {
  font-size: clamp(36px, 5.5vw, 64px);
  font-weight: 900; line-height: 1.12; margin-bottom: 24px;
  letter-spacing: -0.02em;
}
.hero-title .brand {
  background: var(--gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-subtitle {
  font-size: clamp(15px, 1.8vw, 18px);
  color: var(--text-secondary); line-height: 1.8; margin-bottom: 24px;
  max-width: 580px;
}
.hero-tags {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-bottom: 40px;
}
.hero-tag {
  display: inline-flex; align-items: center;
  padding: 4px 12px;
  background: rgba(99,102,241,0.12);
  border: 1px solid rgba(99,102,241,0.3);
  border-radius: 20px;
  font-size: 13px;
  color: #a5b4fc;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 60px; }
.btn-hero {
  padding: 14px 32px; border-radius: 8px;
  font-size: 16px; font-weight: 700;
  text-decoration: none; cursor: pointer; border: none;
  transition: all .25s;
}
.btn-hero-primary {
  background: var(--gradient);
  color: white;
  box-shadow: 0 8px 32px rgba(22,119,255,0.35);
}
.btn-hero-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(22,119,255,0.45); }
.btn-hero-secondary {
  background: rgba(255,255,255,0.06);
  color: white; border: 1px solid rgba(255,255,255,0.12);
}
.btn-hero-secondary:hover { background: rgba(255,255,255,0.1); transform: translateY(-2px); }
.hero-stats {
  display: flex; gap: 40px; flex-wrap: wrap;
}
.hero-stat { display: flex; flex-direction: column; gap: 2px; }
.hero-stat-num {
  font-size: 28px; font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-stat-label { font-size: 12px; color: var(--text-muted); }
.hero-visual {
  position: absolute; right: -20px; top: 50%; transform: translateY(-50%);
  width: 50%; max-width: 680px; z-index: 1;
  height: min(480px, calc(100vh - 160px));
}
.hero-card-stack {
  position: relative; width: 100%; padding-bottom: 70%;
}
.hero-card {
  position: absolute; border-radius: 16px;
  padding: 20px 24px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  backdrop-filter: blur(20px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.hero-card-main {
  width: 80%; right: 5%; top: 5%;
  background: linear-gradient(135deg, rgba(22,119,255,0.15), rgba(0,212,170,0.1));
}
.hero-card-float1 {
  width: 45%; left: 0; bottom: 15%;
  background: rgba(255,255,255,0.04);
  animation: float1 4s ease-in-out infinite;
}
.hero-card-float2 {
  width: 38%; right: 0; bottom: 5%;
  background: rgba(255,255,255,0.04);
  animation: float2 5s ease-in-out infinite;
}
@keyframes float1 { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }
@keyframes float2 { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-8px)} }
.card-metric { display: flex; flex-direction: column; gap: 4px; }
.card-metric-val { font-size: 26px; font-weight: 800; color: var(--accent); }
.card-metric-lbl { font-size: 12px; color: var(--text-secondary); }
.card-bar { height: 4px; border-radius: 2px; background: rgba(255,255,255,0.1); margin-top: 8px; }
.card-bar-fill { height: 100%; border-radius: 2px; background: var(--gradient); }
.card-row { display: flex; gap: 16px; align-items: center; }
.card-icon { width: 36px; height: 36px; border-radius: 8px; background: var(--gradient); display:flex;align-items:center;justify-content:center; }
.card-icon svg { width: 18px; height: 18px; fill: white; }
.mini-stat { font-size: 20px; font-weight: 800; color: var(--primary-light); }
.mini-label { font-size: 11px; color: var(--text-muted); margin-top: 2px; }

/* ========== PRODUCT VISUAL SCENE ========== */
.pv-scene {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, rgba(22,119,255,0.08) 0%, rgba(0,212,170,0.06) 100%);
  border: 1px solid rgba(22,119,255,0.2);
  border-radius: 28px;
  padding: 22px 20px 18px;
  display: flex; flex-direction: column; gap: 14px;
  backdrop-filter: blur(20px);
  box-shadow: 0 24px 80px rgba(22,119,255,0.18), inset 0 1px 0 rgba(255,255,255,0.08);
  position: relative; overflow: hidden;
}
.pv-scene::before {
  content: ''; position: absolute; top: -60px; right: -60px;
  width: 220px; height: 220px;
  background: radial-gradient(circle, rgba(22,119,255,0.15), transparent 70%);
  pointer-events: none;
}
/* 顶部标签栏 */
.pv-topbar {
  display: flex; align-items: center; gap: 10px;
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px; padding: 9px 16px;
}
.pv-tag-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--gradient); flex-shrink: 0;
}
.pv-topbar-title {
  font-size: 14px; font-weight: 700; color: var(--text-primary); white-space: nowrap;
}
.pv-topbar-sub {
  font-size: 11px; color: var(--text-muted);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
/* 主体布局 */
.pv-body {
  display: flex; gap: 14px; flex: 1; align-items: center;
}
/* 手机区 */
.pv-phone-wrap {
  position: relative; flex-shrink: 0;
}
.pv-phone {
  width: 150px; height: 290px;
  background: linear-gradient(160deg, rgba(30,50,90,0.9), rgba(10,20,50,0.95));
  border: 2px solid rgba(22,119,255,0.35);
  border-radius: 22px;
  box-shadow: 0 8px 32px rgba(22,119,255,0.25), inset 0 1px 0 rgba(255,255,255,0.1);
  overflow: hidden; display: flex; flex-direction: column;
}
.pv-phone-bar {
  height: 26px; background: rgba(0,0,0,0.4);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 12px;
}
.pv-phone-dot { width: 7px; height: 7px; border-radius: 50%; background: rgba(255,255,255,0.15); }
.pv-phone-camera { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.15); }
.pv-phone-screen { flex: 1; display: flex; flex-direction: column; padding: 8px; gap: 6px; }
.pv-shop-nav { display: flex; gap: 4px; justify-content: center; margin-bottom: 2px; }
.pv-nav-dot { width: 5px; height: 5px; border-radius: 50%; background: rgba(255,255,255,0.15); }
.pv-nav-dot.active { background: var(--accent); width: 14px; border-radius: 2px; }
.pv-shop-banner {
  height: 52px; border-radius: 10px;
  background: linear-gradient(135deg, rgba(22,119,255,0.5), rgba(0,212,170,0.4));
  display: flex; flex-direction: column; align-items: center; justify-content: center;
}
.pv-banner-text { font-size: 13px; font-weight: 700; color: white; }
.pv-banner-sub { font-size: 10px; color: rgba(255,255,255,0.7); }
.pv-shop-tabs {
  display: flex; gap: 0; border-bottom: 1px solid rgba(255,255,255,0.08); padding-bottom: 4px;
}
.pv-tab { font-size: 10px; color: rgba(255,255,255,0.35); padding: 0 6px; cursor: default; }
.pv-tab.active { color: var(--accent); border-bottom: 1px solid var(--accent); font-weight: 600; }
.pv-shop-items { display: flex; gap: 5px; flex: 1; }
.pv-item { flex: 1; display: flex; flex-direction: column; gap: 3px; }
.pv-item-img { height: 48px; border-radius: 8px; }
.pv-item-name { font-size: 8px; color: rgba(255,255,255,0.6); text-align: center; }
.pv-item-price { font-size: 9px; color: #ff6b6b; font-weight: 700; text-align: center; }
.pv-shop-bottom {
  display: flex; justify-content: space-around; align-items: center;
  padding-top: 5px; border-top: 1px solid rgba(255,255,255,0.06);
}
.pv-bottom-icon svg { width: 14px; height: 14px; stroke: rgba(255,255,255,0.4); }
/* 浮动徽章 */
.pv-badge {
  position: absolute; display: flex; align-items: center; gap: 5px;
  background: rgba(10,20,50,0.85); border: 1px solid rgba(22,119,255,0.3);
  border-radius: 20px; padding: 5px 10px; white-space: nowrap;
  font-size: 10px; color: var(--text-secondary);
  backdrop-filter: blur(10px);
}
.pv-badge svg { width: 14px; height: 14px; }
.pv-badge1 { bottom: -12px; left: -12px; animation: float1 4s ease-in-out infinite; }
.pv-badge2 { top: -10px; right: -10px; animation: float2 5s ease-in-out infinite; border-color: rgba(0,212,170,0.3); }
/* 右侧图标网格 */
.pv-icons-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 9px; flex: 1;
}
.pv-icon-card {
  background: var(--icb, rgba(22,119,255,0.08));
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 14px; padding: 14px 10px;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  transition: transform .25s, box-shadow .25s;
  cursor: default;
}
.pv-icon-card:hover {
  transform: translateY(-3px) scale(1.04);
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}
.pv-icon-bg {
  width: 42px; height: 42px; border-radius: 12px;
  background: var(--icb, rgba(22,119,255,0.15));
  border: 1px solid rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
}
.pv-icon-bg svg { width: 20px; height: 20px; }
.pv-icon-label { font-size: 11px; color: var(--text-secondary); font-weight: 500; text-align: center; white-space: nowrap; }
/* 底部标签行 */
.pv-footer-tags {
  display: flex; gap: 8px; flex-wrap: nowrap;
}
.pv-ftag {
  flex: 1; min-width: 0;
  display: flex; align-items: center; gap: 5px; justify-content: center;
  padding: 6px 10px; border-radius: 20px;
  background: rgba(22,119,255,0.08); border: 1px solid rgba(22,119,255,0.2);
  font-size: 10px; color: var(--accent); font-weight: 500; white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
}

/* ========== MARQUEE ========== */
.marquee-section {
  padding: 0;
  overflow: hidden;
  background: rgba(22,119,255,0.05);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.marquee-track {
  display: flex; align-items: center;
  padding: 18px 0;
  gap: 0;
}
.marquee-inner {
  display: flex; gap: 0;
  animation: marquee 25s linear infinite;
  white-space: nowrap;
}
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.marquee-item {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 0 32px;
  font-size: 14px; color: var(--text-secondary); font-weight: 500;
  border-right: 1px solid var(--border);
}
.marquee-item .dot { width: 5px; height: 5px; border-radius: 50%; background: var(--primary-light); }

/* ========== STATS BANNER ========== */
#stats {
  padding: 80px 5%;
  background: linear-gradient(135deg, rgba(22,119,255,0.06), rgba(0,212,170,0.04));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px;
  max-width: 1000px; margin: 0 auto;
}
.stat-item {
  padding: 40px 32px; text-align: center;
  border-right: 1px solid var(--border);
  position: relative;
}
.stat-item:last-child { border-right: none; }
.stat-num {
  font-size: 52px; font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  line-height: 1; margin-bottom: 8px;
}
.stat-unit { font-size: 22px; }
.stat-label { font-size: 14px; color: var(--text-secondary); font-weight: 500; }
.stat-sub { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

/* ========== TESTIMONIALS ========== */
.testimonial-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
  max-width: 1000px; margin: 0 auto;
}
.testimonial-card {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: 16px; padding: 32px;
  position: relative; overflow: hidden;
  transition: transform .3s, box-shadow .3s, border-color .3s;
}
.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(22,119,255,0.12);
  border-color: rgba(22,119,255,0.3);
}
.testimonial-quote {
  font-size: 72px; line-height: 1; font-family: Georgia, serif;
  color: var(--accent); opacity: 0.15;
  position: absolute; top: 12px; left: 24px;
  font-weight: 900;
}
.testimonial-text {
  font-size: 14px; line-height: 1.8; color: var(--text-secondary);
  margin: 24px 0 24px; position: relative; z-index: 1;
}
.testimonial-footer {
  display: flex; align-items: center; gap: 12px;
}
.testimonial-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 700; color: white; flex-shrink: 0;
}
.testimonial-name { font-size: 14px; font-weight: 600; color: var(--text-primary); }
.testimonial-role { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.testimonial-badge {
  margin-left: auto; padding: 4px 10px;
  background: rgba(22,119,255,0.08); color: var(--accent);
  border-radius: 20px; font-size: 11px; font-weight: 600;
  border: 1px solid rgba(22,119,255,0.15); white-space: nowrap;
}
/* 案例标签行 */
.case-tag-row { display: flex; gap: 6px; margin-bottom: 14px; flex-wrap: wrap; }
.case-tag {
  padding: 3px 9px; border-radius: 4px;
  font-size: 11px; font-weight: 600;
}
/* 合作品牌墙 */
.brands-section {
  margin-top: 56px; padding-top: 40px;
  border-top: 1px solid var(--border);
}
.brands-label {
  font-size: 13px; color: var(--text-muted);
  text-align: center; margin-bottom: 24px;
}
.brands-grid {
  display: flex; flex-wrap: wrap; gap: 10px;
  justify-content: center; max-width: 900px; margin: 0 auto;
}
.brand-chip {
  padding: 8px 18px; border-radius: 6px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  font-size: 13px; color: var(--text-secondary);
  transition: border-color .2s, color .2s;
}
.brand-chip:hover {
  border-color: var(--primary);
  color: var(--text-primary);
}

/* ========== ADVANTAGE ========== */
#advantage { background: var(--dark2); }
.advantage-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
  max-width: 1200px; margin: 0 auto;
}
.advantage-card {
  padding: 36px; border-radius: 16px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  transition: all .3s;
  position: relative; overflow: hidden;
}
.advantage-card::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(22,119,255,0.05), transparent);
  opacity: 0; transition: opacity .3s;
}
.advantage-card:hover { border-color: rgba(22,119,255,0.3); transform: translateY(-4px); box-shadow: 0 20px 60px rgba(0,0,0,0.3); }
.advantage-card:hover::before { opacity: 1; }
.adv-icon {
  width: 56px; height: 56px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; font-size: 26px;
}
.adv-icon-1 { background: linear-gradient(135deg, rgba(22,119,255,0.2), rgba(22,119,255,0.05)); }
.adv-icon-2 { background: linear-gradient(135deg, rgba(0,212,170,0.2), rgba(0,212,170,0.05)); }
.adv-icon-3 { background: linear-gradient(135deg, rgba(255,107,53,0.2), rgba(255,107,53,0.05)); }
.adv-icon-4 { background: linear-gradient(135deg, rgba(168,85,247,0.2), rgba(168,85,247,0.05)); }
.adv-title { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.adv-desc { font-size: 15px; color: var(--text-secondary); line-height: 1.7; }
.adv-tag {
  display: inline-block; margin-top: 16px;
  padding: 4px 10px; border-radius: 4px;
  font-size: 12px; font-weight: 600;
  background: rgba(22,119,255,0.1); color: var(--primary-light);
}

/* ========== MALL TYPES ========== */
#mall-types { background: var(--dark); }
.mall-intro {
  font-size: 15px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 16px;
}
.types-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 1300px; margin: 0 auto;
}
.type-card {
  padding: 28px 24px; border-radius: 14px;
  background: var(--card-bg); border: 1px solid var(--border);
  transition: all .3s; cursor: pointer; position: relative; overflow: hidden;
}
.type-card::after {
  content: ''; position: absolute;
  bottom: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient); transform: scaleX(0);
  transition: transform .3s; transform-origin: left;
}
.type-card:hover { border-color: rgba(22,119,255,0.25); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.25); }
.type-card:hover::after { transform: scaleX(1); }
.type-num {
  font-size: 11px; font-weight: 700; color: var(--text-muted);
  letter-spacing: 0.1em; margin-bottom: 12px;
}
.type-emoji { font-size: 28px; margin-bottom: 14px; display: block; }
.type-name { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.type-desc { font-size: 13px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 12px; }
.type-features {
  display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 10px;
}
.type-feat-tag {
  font-size: 11px; padding: 2px 8px; border-radius: 4px;
  background: rgba(22,119,255,0.1); color: var(--primary-light);
}
.type-scene { font-size: 12px; color: var(--text-muted); margin-top: 8px; line-height: 1.5; }

/* ========== OPERATIONS CENTER ========== */
#operations {
  background: var(--dark2);
}
.ops-layout {
  display: grid; grid-template-columns: 5fr 6fr; gap: 56px;
  align-items: center; max-width: 1200px; margin: 0 auto;
}
.ops-modules { display: flex; flex-direction: column; gap: 16px; }
.ops-module {
  display: flex; gap: 20px; align-items: flex-start;
  padding: 24px; border-radius: 12px;
  background: var(--card-bg); border: 1px solid var(--border);
  transition: all .3s; cursor: pointer;
}
.ops-module:hover { border-color: rgba(22,119,255,0.3); background: rgba(22,119,255,0.05); }
.ops-module-icon {
  width: 44px; height: 44px; border-radius: 10px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
}
.ops-module-content { flex: 1; }
.ops-module-title { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.ops-module-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
.ops-visual {
  position: relative;
}
.ops-dashboard {
  border-radius: 20px; overflow: hidden;
  border: 1px solid var(--border);
  background: var(--dark3);
  box-shadow: 0 30px 80px rgba(0,0,0,0.4);
}
.dash-header {
  padding: 16px 20px;
  background: rgba(22,119,255,0.08);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 8px;
}
.dash-dot { width: 10px; height: 10px; border-radius: 50%; }
.dash-body { padding: 14px 16px; }
/* 漏斗面板布局 */
.funnel-layout {
  display: grid; grid-template-columns: 1fr auto; gap: 12px;
  align-items: start;
}
.funnel-metrics { display: flex; flex-direction: column; gap: 6px; }
.funnel-metric-row {
  display: grid; gap: 6px;
}
.funnel-metric-row.cols-1 { grid-template-columns: 1fr; }
.funnel-metric-row.cols-2 { grid-template-columns: repeat(2, 1fr); }
.funnel-metric-row.cols-4 { grid-template-columns: repeat(4, 1fr); }
.funnel-metric-row.cols-5 { grid-template-columns: repeat(5, 1fr); }
.fm-card {
  padding: 8px 10px; border-radius: 8px;
  background: rgba(255,255,255,0.04); border: 1px solid var(--border);
}
.fm-label { font-size: 10px; color: var(--text-muted); margin-bottom: 2px; }
.fm-val { font-size: 15px; font-weight: 800; color: #e2e8f0; line-height: 1.2; }
.fm-change { font-size: 10px; margin-top: 2px; }
.fm-change.down { color: #00d4aa; }
.fm-change.up   { color: #f87171; }
/* 漏斗图 */
.funnel-chart { display: flex; flex-direction: column; gap: 3px; width: 72px; }
.funnel-step {
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; color: #fff;
  border-radius: 4px; cursor: default;
}
.funnel-step.s1 { height: 36px; width: 72px; background: #4e6ef2; clip-path: polygon(0 0,100% 0,92% 100%,8% 100%); }
.funnel-step.s2 { height: 32px; width: 66px; align-self: center; background: #f97316; clip-path: polygon(0 0,100% 0,92% 100%,8% 100%); }
.funnel-step.s3 { height: 30px; width: 58px; align-self: center; background: #10b981; clip-path: polygon(0 0,100% 0,92% 100%,8% 100%); }
.funnel-step.s4 { height: 26px; width: 50px; align-self: center; background: #eab308; clip-path: polygon(0 0,100% 0,92% 100%,8% 100%); }
.funnel-divider {
  margin: 4px 0; border: none; border-top: 1px solid var(--border);
}

/* ========== MARKETING TOOLS ========== */
#marketing { background: var(--dark); }
.marketing-tabs {
  display: flex; gap: 0; margin-bottom: 40px;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}
.m-tab {
  padding: 12px 24px; cursor: pointer;
  font-size: 14px; font-weight: 600;
  color: var(--text-muted); border-bottom: 2px solid transparent;
  transition: all .2s; white-space: nowrap;
}
.m-tab.active { color: var(--primary-light); border-bottom-color: var(--primary); }
.m-tab:hover:not(.active) { color: var(--text-secondary); }
.m-panel { display: none; }
.m-panel.active { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.m-tool-card {
  padding: 20px; border-radius: 12px;
  background: var(--card-bg); border: 1px solid var(--border);
  transition: all .3s;
}
.m-tool-card:hover { border-color: rgba(22,119,255,0.25); transform: translateY(-2px); }
.m-tool-title { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.m-tool-items { display: flex; flex-wrap: wrap; gap: 6px; }
.m-tag {
  font-size: 12px; padding: 3px 10px; border-radius: 4px;
  background: rgba(255,255,255,0.05); color: var(--text-secondary);
  border: 1px solid var(--border);
}

/* ========== APP CENTER ========== */
#app-center { background: var(--dark2); }
.app-tabs {
  display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 40px;
}
.app-tab {
  padding: 8px 18px; border-radius: 6px; cursor: pointer;
  font-size: 14px; font-weight: 600;
  background: rgba(255,255,255,0.04); color: var(--text-secondary);
  border: 1px solid var(--border); transition: all .2s;
}
.app-tab.active {
  background: var(--primary); color: white; border-color: var(--primary);
}
.app-tab:hover:not(.active) { border-color: rgba(22,119,255,0.3); color: var(--text-primary); }
.app-panel { display: none; }
.app-panel.active { display: block; }
.apps-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.app-card {
  padding: 20px 16px; border-radius: 12px;
  background: var(--card-bg); border: 1px solid var(--border);
  text-align: center; transition: all .3s; cursor: pointer;
}
.app-card:hover { border-color: rgba(22,119,255,0.3); transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }
.app-icon { font-size: 28px; margin-bottom: 10px; display: block; }
.app-name { font-size: 13px; font-weight: 700; margin-bottom: 4px; }
.app-brief { font-size: 11px; color: var(--text-muted); line-height: 1.4; }
.marketing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.marketing-card {
  padding: 16px; border-radius: 10px;
  background: var(--card-bg); border: 1px solid var(--border);
  transition: all .3s;
}
.marketing-card:hover { border-color: rgba(22,119,255,0.25); transform: translateY(-2px); }
.mc-category { font-size: 10px; font-weight: 700; color: var(--text-muted); letter-spacing: .08em; text-transform: uppercase; margin-bottom: 8px; }
.mc-title { font-size: 14px; font-weight: 700; margin-bottom: 8px; }
.mc-items { display: flex; flex-wrap: wrap; gap: 4px; }
.mc-item { font-size: 11px; padding: 2px 7px; border-radius: 3px; background: rgba(22,119,255,0.08); color: var(--primary-light); }

/* ========== ABOUT ========== */
#about { background: var(--dark); }
.about-layout {
  display: grid; grid-template-columns: 1fr 1fr; gap: 80px;
  align-items: start; max-width: 1200px; margin: 0 auto;
}
.about-left {}
.about-desc {
  font-size: 16px; color: var(--text-secondary); line-height: 1.9; margin-bottom: 32px;
}
.certs-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 32px; }
.cert-item {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px; border-radius: 10px;
  background: var(--card-bg); border: 1px solid var(--border);
}
.cert-icon { font-size: 20px; }
.cert-text { font-size: 13px; font-weight: 600; color: var(--text-secondary); }
.about-right {}
.products-list { display: flex; flex-direction: column; gap: 12px; }
.product-item {
  display: flex; align-items: center; gap: 14px;
  padding: 16px 20px; border-radius: 10px;
  background: var(--card-bg); border: 1px solid var(--border);
  transition: all .3s;
}
.product-item:hover { border-color: rgba(0,212,170,0.3); }
.product-dot {
  width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
  background: var(--accent);
}
.product-name { font-size: 14px; font-weight: 600; }

/* ========== TRIAL CTA ========== */
#trial {
  padding: 100px 5%;
  background: linear-gradient(135deg, rgba(22,119,255,0.1), rgba(0,212,170,0.06));
  border-top: 1px solid var(--border);
  text-align: center;
}
.trial-title { font-size: clamp(28px, 4vw, 44px); font-weight: 900; margin-bottom: 16px; }
.trial-desc { font-size: 16px; color: var(--text-secondary); margin-bottom: 40px; }
.trial-highlight {
  display: inline-block; padding: 10px 28px; border-radius: 30px;
  background: rgba(0,212,170,0.12); border: 1px solid rgba(0,212,170,0.3);
  color: var(--accent); font-size: 15px; font-weight: 700;
  margin-bottom: 32px;
}
.trial-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 60px; }
.btn-trial {
  padding: 16px 40px; border-radius: 8px;
  font-size: 16px; font-weight: 700;
  text-decoration: none; cursor: pointer; border: none;
  transition: all .25s;
}
.btn-trial-primary {
  background: var(--gradient); color: white;
  box-shadow: 0 8px 32px rgba(22,119,255,0.4);
}
.btn-trial-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(22,119,255,0.5); }
.btn-trial-secondary {
  background: rgba(255,255,255,0.05); color: white;
  border: 1px solid rgba(255,255,255,0.15);
}
.btn-trial-secondary:hover { background: rgba(255,255,255,0.1); }
.qr-area {
  display: flex; gap: 40px; justify-content: center; align-items: flex-start; flex-wrap: wrap;
}
.qr-card {
  display: flex; flex-direction: column; align-items: center; gap: 12px;
}
.qr-box {
  width: 120px; height: 120px; border-radius: 12px;
  background: white; display: flex; align-items: center; justify-content: center;
  border: 2px solid rgba(22,119,255,0.3);
  font-size: 36px;
}
.qr-label { font-size: 13px; color: var(--text-secondary); font-weight: 500; }

/* ========== CONTACT ========== */
#contact {
  padding: 80px 5%;
  background: var(--dark2);
  border-top: 1px solid var(--border);
}
.contact-layout {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
  max-width: 1000px; margin: 0 auto;
}
.contact-info { display: flex; flex-direction: column; gap: 20px; }
.contact-item { display: flex; gap: 14px; align-items: flex-start; }
.contact-icon {
  width: 40px; height: 40px; border-radius: 10px; flex-shrink: 0;
  background: rgba(22,119,255,0.1); border: 1px solid rgba(22,119,255,0.2);
  display: flex; align-items: center; justify-content: center; font-size: 16px;
}
.contact-text-label { font-size: 12px; color: var(--text-muted); margin-bottom: 2px; }
.contact-text-val { font-size: 15px; font-weight: 600; }
.service-hours {
  padding: 20px; border-radius: 12px;
  background: rgba(0,212,170,0.05); border: 1px solid rgba(0,212,170,0.15);
}
.service-hours-title { font-size: 13px; font-weight: 700; color: var(--accent); margin-bottom: 8px; }
.service-hours-val { font-size: 15px; font-weight: 600; }

/* ========== FOOTER ========== */
footer {
  padding: 40px 5%;
  background: var(--dark);
  border-top: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px;
}
.footer-logo { font-size: 15px; font-weight: 700; }
.footer-logo span { color: var(--accent); }
.footer-copy { font-size: 13px; color: var(--text-muted); }
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 13px; color: var(--text-muted); text-decoration: none; transition: color .2s; }
.footer-links a:hover { color: var(--text-secondary); }

/* ========== RESPONSIVE ========== */

/* 汉堡菜单按钮（默认隐藏） */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  border: none;
  background: transparent;
  z-index: 1001;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: white;
  border-radius: 2px;
  transition: all .3s;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 移动端抽屉菜单 */
nav.nav-drawer {
  display: none;
  position: fixed;
  top: 64px; left: 0; right: 0;
  height: auto;
  background: rgba(10,14,26,0.98);
  backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  z-index: 999;
  padding: 20px 5% 24px;
  flex-direction: column;
  gap: 4px;
  transform: translateY(-8px);
  opacity: 0;
  transition: opacity .25s, transform .25s;
  border-top: none;
}
nav.nav-drawer.open {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}
.nav-drawer a {
  display: block;
  padding: 12px 16px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  border-radius: 8px;
  transition: all .2s;
}
.nav-drawer a:hover { color: white; background: rgba(255,255,255,0.06); }
.nav-drawer-divider {
  height: 1px;
  background: var(--border);
  margin: 10px 0;
}
.nav-drawer-cta {
  display: flex;
  gap: 10px;
  padding: 4px 0 0;
}
.nav-drawer-cta .btn-primary,
.nav-drawer-cta .btn-outline {
  flex: 1;
  text-align: center;
  padding: 10px 16px;
  font-size: 14px;
}

@media (max-width: 1100px) {
  .types-grid { grid-template-columns: repeat(3, 1fr); }
  .apps-grid { grid-template-columns: repeat(4, 1fr); }
  .marketing-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  /* 导航 */
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-hamburger { display: flex; }

  /* Hero */
  #hero {
    min-height: auto;
    padding: 100px 5% 60px;
    flex-direction: column;
    align-items: flex-start;
  }
  .hero-content { max-width: 100%; }
  .hero-visual {
    position: relative;
    right: auto; top: auto; transform: none;
    width: 100%; max-width: 100%;
    height: auto;
    margin-top: 40px;
  }
  .hero-card-stack { padding-bottom: 60%; }
  .hero-card-main { width: 88%; left: 6%; top: 2%; }
  .hero-card-float1 { width: 55%; right: 2%; bottom: 16%; }
  .hero-card-float2 { width: 48%; left: 4%; bottom: 2%; }

  /* Stats */
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item { border-right: none; border-bottom: 1px solid var(--border); }
  .stat-item:nth-child(odd) { border-right: 1px solid var(--border); }

  /* Testimonial */
  .testimonial-grid { grid-template-columns: 1fr; }

  /* Advantage */
  .advantage-grid { grid-template-columns: 1fr; }

  /* Mall types */
  .types-grid { grid-template-columns: repeat(2, 1fr); }

  /* Operations */
  .ops-layout { grid-template-columns: 1fr; gap: 40px; }
  .ops-visual { order: -1; }
  /* 看板内部适配：漏斗布局转单列，隐藏漏斗图 */
  .funnel-layout { grid-template-columns: 1fr; }
  .funnel-chart { display: none; }
  .funnel-metric-row.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .funnel-metric-row.cols-5 { grid-template-columns: repeat(2, 1fr); }
  .fm-val { font-size: 13px; }
  .fm-label { font-size: 9px; }
  .ops-dashboard { font-size: 12px; }

  /* About */
  .about-layout { grid-template-columns: 1fr; gap: 40px; }

  /* Contact */
  .contact-layout { grid-template-columns: 1fr; gap: 40px; }

  /* App center */
  .apps-grid { grid-template-columns: repeat(3, 1fr); }
  .marketing-grid { grid-template-columns: repeat(2, 1fr); }

  /* Footer */
  footer { flex-direction: column; text-align: center; gap: 20px; }
  .footer-links { justify-content: center; flex-wrap: wrap; gap: 16px; }
}

@media (max-width: 600px) {
  /* 全局间距 */
  section { padding: 60px 4%; }

  /* Hero */
  #hero { padding: 80px 4% 50px; }
  .hero-title { font-size: clamp(28px, 8vw, 42px); }
  .hero-subtitle { font-size: 14px; }
  .hero-actions { flex-direction: column; gap: 10px; }
  .btn-hero { width: 100%; text-align: center; padding: 13px 24px; font-size: 15px; }
  .hero-stats { gap: 20px; flex-wrap: wrap; }
  .hero-stat-num { font-size: 22px; }
  .hero-badge { font-size: 11px; }
  .hero-card { font-size: 12px; padding: 14px 16px; }
  .hero-card-stack { padding-bottom: 68%; }
  .hero-visual { margin-top: 28px; }

  /* Stats */
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item { padding: 20px 16px; }
  .stat-num { font-size: 32px; }

  /* Section headers */
  .section-title { font-size: clamp(22px, 6vw, 32px); }
  .section-header { margin-bottom: 36px; }

  /* Advantage */
  .advantage-card { padding: 24px 20px; }

  /* Mall types */
  .types-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .type-card { padding: 18px 14px; }
  .type-name { font-size: 14px; }
  .type-desc { font-size: 12px; }
  .type-feat-tag { font-size: 10px; }

  /* Operations */
  .ops-module { padding: 18px; }
  .ops-module-title { font-size: 14px; }
  .ops-module-desc { font-size: 13px; }
  .dash-body { padding: 10px 10px; }
  .dash-row { grid-template-columns: 1fr 1fr; }
  .fm-card { padding: 6px 8px; }
  .funnel-metric-row.cols-4 { grid-template-columns: repeat(2, 1fr); gap: 4px; }
  .funnel-metric-row.cols-5 { grid-template-columns: repeat(2, 1fr); gap: 4px; }

  /* Marketing */
  .marketing-tabs { gap: 0; }
  .m-tab { padding: 10px 14px; font-size: 13px; }
  .m-panel.active { grid-template-columns: 1fr 1fr; gap: 10px; }
  .m-tool-card { padding: 14px; }

  /* App center */
  .app-tabs { gap: 6px; }
  .app-tab { padding: 6px 12px; font-size: 12px; }
  .apps-grid { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .app-card { padding: 14px 10px; }
  .app-icon { font-size: 22px; margin-bottom: 6px; }
  .app-name { font-size: 11px; }
  .app-brief { display: none; }
  .marketing-grid { grid-template-columns: 1fr 1fr; gap: 8px; }

  /* About */
  .certs-grid { grid-template-columns: 1fr; }
  .about-desc { font-size: 14px; }

  /* Trial */
  #trial { padding: 60px 4%; }
  .trial-title { font-size: clamp(22px, 6vw, 32px); }
  .trial-actions { flex-direction: column; align-items: center; gap: 10px; }
  .btn-trial { width: 100%; max-width: 320px; text-align: center; padding: 14px 24px; font-size: 15px; }
  .qr-area { gap: 24px; }
  .trial-highlight { font-size: 13px; padding: 8px 18px; }

  /* Contact */
  #contact { padding: 50px 4%; }

  /* Footer */
  footer { padding: 28px 4%; gap: 16px; }
  .footer-links { gap: 12px; }
  .footer-links a { font-size: 12px; }
  .footer-copy { font-size: 11px; }
}

@media (max-width: 400px) {
  .types-grid { grid-template-columns: 1fr; }
  .apps-grid { grid-template-columns: repeat(2, 1fr); }
  .marketing-grid { grid-template-columns: 1fr; }
  .m-panel.active { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .stat-item { border-right: none !important; }
}