/* ===== 落地页（科技感 + 整齐对齐）===== */
.landing { background: #060a16; color: #e2e8f0; min-height: 100vh; position: relative; overflow-x: hidden; }
.landing::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(800px 500px at 15% 10%, rgba(47,111,237,.25), transparent 60%),
    radial-gradient(700px 500px at 85% 25%, rgba(6,182,212,.20), transparent 60%),
    radial-gradient(900px 600px at 50% 90%, rgba(139,92,246,.18), transparent 65%),
    linear-gradient(transparent 95%, rgba(47,111,237,.06) 95%) 0 0/40px 40px,
    linear-gradient(90deg, transparent 95%, rgba(47,111,237,.06) 95%) 0 0/40px 40px;
}
.landing .container { max-width: 1200px; margin: 0 auto; padding: 0 36px; position: relative; z-index: 2; }

/* 顶部导航 */
.landing .nav {
  position: relative; z-index: 3;
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 36px; border-bottom: 1px solid rgba(148,163,184,.12);
  background: rgba(6,10,22,.6); backdrop-filter: blur(10px);
}
.landing .nav .brand { display: flex; align-items: center; gap: 12px; font-weight: 700; font-size: 16px; }
.landing .nav .brand .logo {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, #2f6fed, #06b6d4);
  box-shadow: 0 0 24px rgba(47,111,237,.5);
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 16px;
}
.landing .nav .links { display: flex; gap: 26px; font-size: 14px; color: #94a3b8; }
.landing .nav .links a { color: #94a3b8; text-decoration: none; transition: color .2s; }
.landing .nav .links a:hover { color: #fff; }
.landing .nav .cta-btn {
  background: linear-gradient(135deg, #2f6fed, #06b6d4); color: #fff; border: 0;
  padding: 10px 20px; border-radius: 10px; font-size: 13px; font-weight: 600; cursor: pointer;
  box-shadow: 0 4px 18px rgba(47,111,237,.35); transition: all .2s;
}
.landing .nav .cta-btn:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(47,111,237,.5); }

/* Hero */
.hero { padding: 90px 0 60px; text-align: center; position: relative; z-index: 2; }
.hero .badge {
  display: inline-block; padding: 6px 16px; border-radius: 999px;
  background: rgba(47,111,237,.12); border: 1px solid rgba(47,111,237,.35);
  color: #93c5fd; font-size: 12px; letter-spacing: 1px; margin-bottom: 22px;
}
.hero h1 {
  font-size: 56px; line-height: 1.12; font-weight: 800; margin: 0 0 22px; letter-spacing: -1px;
  background: linear-gradient(120deg, #fff 0%, #93c5fd 35%, #06b6d4 70%, #8b5cf6 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero h1 .glow {
  background: linear-gradient(120deg, #2f6fed, #06b6d4);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 12px rgba(6,182,212,.5));
}
.hero .sub { font-size: 18px; color: #94a3b8; max-width: 760px; margin: 0 auto 32px; line-height: 1.8; }
.hero .sub b { color: #e2e8f0; font-weight: 600; }
.hero .cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 12px; }
.hero .cta .primary, .hero .cta .ghost {
  padding: 14px 28px; border-radius: 10px; font-size: 15px; font-weight: 600; cursor: pointer; border: 0;
  transition: all .2s;
}
.hero .cta .primary { background: linear-gradient(135deg, #2f6fed, #06b6d4); color: #fff; box-shadow: 0 8px 30px rgba(47,111,237,.4); }
.hero .cta .primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(47,111,237,.55); }
.hero .cta .ghost { background: rgba(255,255,255,.05); color: #e2e8f0; border: 1px solid rgba(148,163,184,.3); }
.hero .cta .ghost:hover { background: rgba(255,255,255,.1); }

/* 浮动光球 */
.orbs { position: absolute; inset: 0; overflow: hidden; z-index: 0; pointer-events: none; }
.orb { position: absolute; border-radius: 50%; filter: blur(60px); opacity: .5; animation: float 12s ease-in-out infinite; }
.orb.b1 { width: 380px; height: 380px; background: #2f6fed; top: 10%; left: 5%; animation-delay: 0s; }
.orb.b2 { width: 320px; height: 320px; background: #06b6d4; top: 40%; right: 8%; animation-delay: -4s; }
.orb.b3 { width: 300px; height: 300px; background: #8b5cf6; bottom: 8%; left: 40%; animation-delay: -8s; }
@keyframes float { 0%,100%{ transform: translate(0,0); } 50%{ transform: translate(30px,-40px); } }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; margin-top: 60px; }
.stat-card {
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.01));
  border: 1px solid rgba(148,163,184,.18); border-radius: 14px; padding: 22px;
  text-align: center; backdrop-filter: blur(8px);
}
.stat-card .num { font-size: 32px; font-weight: 800; color: #fff; line-height: 1; }
.stat-card .num b { background: linear-gradient(90deg,#2f6fed,#06b6d4); -webkit-background-clip:text; background-clip:text; color: transparent; }
.stat-card .label { color: #94a3b8; font-size: 12px; margin-top: 8px; letter-spacing: .5px; }

/* Section */
.section { padding: 70px 0; position: relative; z-index: 2; }
.section .eyebrow { color: #06b6d4; font-size: 13px; letter-spacing: 3px; text-transform: uppercase; font-weight: 600; }
.section h2 { font-size: 38px; font-weight: 800; margin: 10px 0 14px; color: #fff; letter-spacing: -.5px; }
.section .lead { color: #94a3b8; max-width: 760px; margin: 0 0 40px; line-height: 1.8; font-size: 15px; }

/* Module grid - 等高对齐 */
.modules-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.module-card {
  position: relative; display: flex; flex-direction: column;
  padding: 22px; border-radius: 14px; min-height: 200px;
  background: linear-gradient(180deg, rgba(30,41,59,.7), rgba(15,23,42,.7));
  border: 1px solid rgba(148,163,184,.18); cursor: pointer; overflow: hidden;
  transition: all .25s; text-decoration: none; color: inherit;
}
.module-card::after { content:''; position:absolute; inset:-1px; border-radius:14px; padding:1px;
  background: linear-gradient(135deg, transparent 40%, rgba(47,111,237,.6), transparent 60%); -webkit-mask:linear-gradient(#000,#000) content-box,linear-gradient(#000,#000); -webkit-mask-composite:xor; mask-composite:exclude; opacity:0; transition: opacity .25s;}
.module-card:hover { transform: translateY(-3px); border-color: rgba(47,111,237,.4); }
.module-card:hover::after { opacity:1; }
.module-card .icon { font-size: 28px; line-height: 1; margin-bottom: 12px; }
.module-card .name { font-weight: 700; color: #fff; font-size: 15px; margin-bottom: 8px; line-height: 1.3; }
.module-card .desc { color: #94a3b8; font-size: 13px; line-height: 1.65; flex: 1; }
.module-card .footer { display: flex; justify-content: space-between; align-items: center; margin-top: 14px; padding-top: 12px; border-top: 1px solid rgba(148,163,184,.1); }
.module-card .role-tag {
  display: inline-block; padding: 3px 10px; border-radius: 999px;
  background: rgba(6,182,212,.12); color: #67e8f9; font-size: 11px; border: 1px solid rgba(6,182,212,.3);
}
.module-card .role-tag.enterprise { background: rgba(47,111,237,.12); color: #93c5fd; border-color: rgba(47,111,237,.3); }
.module-card .role-tag.customs { background: rgba(139,92,246,.12); color: #c4b5fd; border-color: rgba(139,92,246,.3); }
.module-card .go { color: #64748b; font-size: 12px; transition: all .25s; font-weight: 500; }
.module-card:hover .go { color: #06b6d4; }

/* Feature pillars */
.pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.pillar {
  padding: 26px; border-radius: 14px;
  background: linear-gradient(180deg, rgba(30,41,59,.6), rgba(15,23,42,.4));
  border: 1px solid rgba(148,163,184,.16);
  transition: all .25s;
}
.pillar:hover { border-color: rgba(47,111,237,.35); transform: translateY(-2px); }
.pillar .pi {
  width: 48px; height: 48px; border-radius: 10px; display: grid; place-items: center; margin-bottom: 16px;
  background: linear-gradient(135deg, rgba(47,111,237,.25), rgba(6,182,212,.25));
  border: 1px solid rgba(47,111,237,.35); color: #93c5fd; font-size: 22px;
}
.pillar h3 { color: #fff; font-size: 17px; margin-bottom: 8px; }
.pillar p { color: #94a3b8; font-size: 13px; line-height: 1.75; }

/* Audience */
.audience { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.aud-card {
  padding: 30px; border-radius: 14px; border: 1px solid rgba(148,163,184,.18);
  background: linear-gradient(180deg, rgba(30,41,59,.6), rgba(15,23,42,.6));
}
.aud-card.ent { border-color: rgba(47,111,237,.35); }
.aud-card.cus { border-color: rgba(139,92,246,.35); }
.aud-card h3 { color: #fff; font-size: 20px; margin-bottom: 14px; }
.aud-card ul { color: #94a3b8; font-size: 14px; line-height: 2; padding-left: 20px; }
.aud-card ul li::marker { color: #06b6d4; }

/* Pricing */
.pricing { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.price-card {
  padding: 24px 16px; border-radius: 12px; border: 1px solid rgba(148,163,184,.18);
  background: linear-gradient(180deg, rgba(30,41,59,.5), rgba(15,23,42,.5)); text-align: center;
  transition: all .25s;
}
.price-card:hover { transform: translateY(-2px); border-color: rgba(47,111,237,.4); }
.price-card.feat { border-color: rgba(6,182,212,.5); box-shadow: 0 0 30px rgba(6,182,212,.15); }
.price-card .tier { color: #06b6d4; font-size: 13px; font-weight: 600; }
.price-card .amt { font-size: 30px; color: #fff; font-weight: 800; margin: 8px 0 4px; line-height: 1; }
.price-card .amt small { font-size: 13px; color: #94a3b8; font-weight: 500; }
.price-card .pos { color: #94a3b8; font-size: 12px; margin-top: 10px; line-height: 1.5; min-height: 36px; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; position: relative; }
.step { text-align: center; padding: 24px 18px; position: relative; }
.step .n { width: 48px; height: 48px; border-radius: 50%; margin: 0 auto 14px;
  background: linear-gradient(135deg, #2f6fed, #06b6d4); color: #fff; font-weight: 700; font-size: 18px;
  display: grid; place-items: center; box-shadow: 0 0 24px rgba(47,111,237,.4); }
.step h4 { color: #fff; font-size: 16px; margin-bottom: 6px; }
.step p { color: #94a3b8; font-size: 13px; line-height: 1.7; }

/* Footer */
.foot { padding: 36px 0; border-top: 1px solid rgba(148,163,184,.12);
  color: #64748b; font-size: 13px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  position: relative; z-index: 2;
}

/* Responsive */
@media (max-width: 1024px) {
  .modules-grid, .pillars { grid-template-columns: repeat(3, 1fr); }
  .pricing { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .hero h1 { font-size: 36px; }
  .hero { padding: 60px 0 30px; }
  .stats { grid-template-columns: repeat(2,1fr); }
  .modules-grid { grid-template-columns: repeat(2,1fr); }
  .pillars { grid-template-columns: 1fr; }
  .audience { grid-template-columns: 1fr; }
  .pricing { grid-template-columns: repeat(2,1fr); }
  .section h2 { font-size: 26px; }
  .section { padding: 50px 0; }
  .landing .nav { padding: 14px 18px; flex-wrap: wrap; gap: 10px; }
  .landing .nav .links { gap: 14px; font-size: 13px; }
  .landing .container { padding: 0 18px; }
}

/* 进入工作台后顶栏的"首页"链接 */
.topbar .home-link { color: var(--accent); text-decoration: none; font-size: 13px; padding: 5px 12px; border-radius: 6px; border: 1px solid #dbeafe; transition: all .2s; }
.topbar .home-link:hover { background: #eff6ff; }