:root {
  --ms-primary: #3b82f6;      
  --ms-secondary: #8b5cf6;    
  --ms-bg: #0b0f19;           
  --ms-card: #151c2c;         
  --ms-card-hover: #1e293b;
  --ms-border: rgba(255, 255, 255, 0.08);
  --ms-border-hover: rgba(59, 130, 246, 0.4);
  --ms-text: #f1f5f9;
  --ms-sub: #94a3b8;
  --ms-good: #10b981;
  --ms-bad: #ef4444;
}

/* 基础 */
.ms-page { background: var(--ms-bg); color: var(--ms-text); overflow-x: hidden; }
.ms-page .container { max-width: 1240px; margin: 0 auto; padding: 0 20px; }

/* 首屏背景 */
.ms-bg-grid {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  background-image: 
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: linear-gradient(to bottom, black 30%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 30%, transparent 100%);
  z-index: 0; pointer-events: none;
}

/* ===== Hero ===== */
.ms-hero {
  position: relative; padding: 90px 0 70px;
  background: radial-gradient(circle at 20% 0%, rgba(59,130,246,0.15) 0%, transparent 50%);
  border-bottom: 1px solid var(--ms-border);
}
.ms-hero-inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 50px; align-items: center; position: relative; z-index: 1; }
.ms-eyebrow {
  display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600;
  color: var(--ms-primary); background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.2);
  padding: 6px 16px; border-radius: 30px; margin-bottom: 24px;
}
.ms-eyebrow::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--ms-good); box-shadow: 0 0 10px var(--ms-good); }
.ms-hero h1 { font-size: 46px; line-height: 1.2; font-weight: 800; margin: 0 0 20px; color: #fff; letter-spacing: -1px; }
.ms-hero h1 em { font-style: normal; background: linear-gradient(90deg, var(--ms-primary), var(--ms-secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.ms-hero-sub { font-size: 16px; color: var(--ms-sub); line-height: 1.8; margin: 0 0 30px; max-width: 540px; }
.ms-hero-sub strong { color: #fff; font-weight: 600; }

.ms-cta-row { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 20px; }
.ms-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 32px; border-radius: 8px; font-size: 15px; font-weight: 600;
  cursor: pointer; border: none; transition: all 0.3s ease; text-decoration: none;
}
.ms-btn-primary { background: linear-gradient(90deg, var(--ms-primary), var(--ms-secondary)); color: #fff; box-shadow: 0 4px 20px rgba(59,130,246,0.3); }
.ms-btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(59,130,246,0.5); }
.ms-btn-ghost { background: rgba(255,255,255,0.05); color: var(--ms-text); border: 1px solid var(--ms-border); }
.ms-btn-ghost:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.2); }

.ms-hero-right { position: relative; display: flex; justify-content: center; align-items: center; }
.ms-shield-visual {
  width: 320px; height: 320px; border-radius: 50%;
  background: radial-gradient(circle, rgba(59,130,246,0.1) 0%, transparent 70%);
  border: 1px solid rgba(59,130,246,0.2); display: flex; flex-direction: column; justify-content: center; align-items: center;
  position: relative; box-shadow: 0 0 60px rgba(59,130,246,0.1) inset;
}
.ms-shield-visual::before, .ms-shield-visual::after {
  content: ""; position: absolute; border-radius: 50%; border: 1px dashed rgba(59,130,246,0.3); animation: spin 20s linear infinite;
}
.ms-shield-visual::before { width: 250px; height: 250px; }
.ms-shield-visual::after { width: 380px; height: 380px; animation-direction: reverse; animation-duration: 30s; }
.ms-shield-visual h3 { font-size: 48px; font-weight: 800; color: #fff; margin: 0; text-shadow: 0 0 20px rgba(59,130,246,0.6); }
.ms-shield-visual p { font-size: 15px; color: var(--ms-primary); margin: 4px 0 0; font-weight: 600; letter-spacing: 1px; }
@keyframes spin { 100% { transform: rotate(360deg); } }

/* ===== 通用区块 ===== */
.ms-section { padding: 70px 0; position: relative; }
.ms-section.alt { background: #0d121f; border-top: 1px solid var(--ms-border); border-bottom: 1px solid var(--ms-border); }
.ms-head { text-align: center; margin-bottom: 45px; }
.ms-head h2 { font-size: 32px; font-weight: 800; color: #fff; margin: 0 0 12px; }
.ms-head h2 span { color: var(--ms-primary); }
.ms-head p { font-size: 15px; color: var(--ms-sub); max-width: 700px; margin: 0 auto; line-height: 1.6; }

/* ===== 机房优势 (图文混合) ===== */
.ms-facility-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.ms-facility-item { display: flex; gap: 20px; background: var(--ms-card); padding: 30px; border-radius: 16px; border: 1px solid var(--ms-border); }
.ms-facility-icon { flex-shrink: 0; width: 56px; height: 56px; border-radius: 12px; background: rgba(59,130,246,0.1); display: flex; align-items: center; justify-content: center; color: var(--ms-primary); }
.ms-facility-text h3 { font-size: 18px; color: #fff; margin: 0 0 10px; }
.ms-facility-text p { font-size: 14px; color: var(--ms-sub); line-height: 1.7; margin: 0; }

/* ===== 详细配置矩阵 (大表格) ===== */
.ms-matrix-wrap { background: var(--ms-card); border: 1px solid var(--ms-border); border-radius: 16px; overflow: hidden; }
.ms-matrix-table { width: 100%; border-collapse: collapse; text-align: center; }
.ms-matrix-table th { background: rgba(255,255,255,0.03); padding: 20px 15px; font-size: 14px; font-weight: 600; color: var(--ms-sub); border-bottom: 1px solid var(--ms-border); }
.ms-matrix-table td { padding: 20px 15px; font-size: 14px; color: var(--ms-text); border-bottom: 1px solid var(--ms-border); }
.ms-matrix-table tr:last-child td { border-bottom: none; }
.ms-matrix-table tr:hover td { background: rgba(59,130,246,0.05); }
.ms-matrix-table .td-title { font-weight: 700; color: #fff; font-size: 16px; text-align: left; padding-left: 30px; }
.ms-matrix-table .td-price { font-size: 20px; font-weight: 800; color: var(--ms-primary); }
.ms-matrix-table .td-price small { font-size: 12px; color: var(--ms-sub); font-weight: 400; }
.ms-matrix-table .tag { display: inline-block; background: rgba(245,158,11,0.15); color: #f59e0b; padding: 2px 8px; border-radius: 4px; font-size: 12px; font-weight: 600; margin-left: 8px; vertical-align: middle; }

/* ===== 防护体系 ===== */
.ms-defense-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.ms-defense-card { background: var(--ms-card); border: 1px solid var(--ms-border); border-radius: 16px; padding: 30px; transition: border-color 0.3s; }
.ms-defense-card:hover { border-color: var(--ms-border-hover); }
.ms-defense-card h3 { font-size: 18px; color: #fff; margin: 0 0 12px; display: flex; align-items: center; gap: 10px; }
.ms-defense-card h3 svg { color: var(--ms-primary); }
.ms-defense-card p { font-size: 14px; color: var(--ms-sub); line-height: 1.7; margin: 0; }

/* ===== 接入流程 ===== */
.ms-process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; position: relative; }
.ms-process-grid::before { content: ""; position: absolute; top: 30px; left: 10%; right: 10%; height: 2px; background: dashed var(--ms-border); z-index: 0; }
.ms-process-step { text-align: center; position: relative; z-index: 1; }
.ms-process-num { width: 60px; height: 60px; border-radius: 50%; background: var(--ms-bg); border: 2px solid var(--ms-primary); color: var(--ms-primary); font-size: 22px; font-weight: 800; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; box-shadow: 0 0 20px rgba(59,130,246,0.2); }
.ms-process-step h3 { font-size: 16px; color: #fff; margin: 0 0 8px; }
.ms-process-step p { font-size: 13px; color: var(--ms-sub); }

/* ===== FAQ ===== */
.ms-faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.ms-faq-item { background: var(--ms-card); border: 1px solid var(--ms-border); border-radius: 12px; padding: 24px; }
.ms-faq-item h3 { font-size: 16px; color: #fff; margin: 0 0 10px; display: flex; gap: 10px; }
.ms-faq-item h3::before { content: "Q"; color: var(--ms-primary); font-weight: 800; }
.ms-faq-item p { font-size: 14px; color: var(--ms-sub); line-height: 1.7; margin: 0; padding-left: 26px; }

/* ===== 底部 CTA ===== */
.ms-final-cta { padding: 80px 0; text-align: center; background: radial-gradient(ellipse at 50% 100%, rgba(59,130,246,0.15) 0%, transparent 70%); border-top: 1px solid var(--ms-border); }
.ms-final-cta h2 { font-size: 36px; color: #fff; margin: 0 0 16px; }
.ms-final-cta p { color: var(--ms-sub); font-size: 16px; max-width: 600px; margin: 0 auto 32px; }
.ms-final-cta .ms-cta-row { justify-content: center; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .ms-hero-inner { grid-template-columns: 1fr; text-align: center; }
  .ms-hero-left { display: flex; flex-direction: column; align-items: center; }
  .ms-hero-sub { margin-left: auto; margin-right: auto; }
  .ms-facility-grid { grid-template-columns: 1fr; }
  .ms-process-grid { grid-template-columns: repeat(2, 1fr); gap: 40px 20px; }
  .ms-process-grid::before { display: none; }
  .ms-faq-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .ms-hero h1 { font-size: 32px; }
  .ms-shield-visual { width: 260px; height: 260px; margin-top: 30px; }
  .ms-defense-grid { grid-template-columns: 1fr; }
  .ms-matrix-wrap { overflow-x: auto; }
  .ms-matrix-table { min-width: 800px; }
  .ms-btn { width: 100%; }
}