/* ============================================================
   hhlsq.com — security.css 网站安全防护页专属样式
   布局指纹：H8 网格动感 Hero ｜ B7 Bento｜B2 错位卡片墙｜B3 步骤时间轴｜B1 统计带｜B11 等级表｜B15 CTA
   签名元素：S4 网格点阵
   ============================================================ */

/* ---------- 1. Hero H8 网格动感 ---------- */
.sec-hero{ background:var(--gray-100); padding:clamp(56px,6vw,88px) 0 clamp(60px,7vw,96px); position:relative; overflow:hidden; }
.sec-hero__inner{ position:relative; }
.sec-hero__grid{
  display:grid; grid-template-columns:1fr 1fr; gap:20px;
  max-width:980px; margin:0 auto;
}
.sec-hero__img{ width:100%; aspect-ratio:16/10; object-fit:cover; border-radius:var(--radius-md); box-shadow:var(--shadow-sm); }
.sec-hero__img--1{ transform:rotate(-1.6deg) translateY(14px); }
.sec-hero__img--2{ transform:rotate(1.4deg) translateY(-8px); }
.sec-hero__img--3{ transform:rotate(1.8deg) translateY(6px); }
.sec-hero__img--4{ transform:rotate(-1.2deg) translateY(-16px); }

.sec-hero__card{
  position:relative; z-index:2; max-width:640px; margin:-120px auto 0;
  background:#fff; border-radius:var(--radius-lg); box-shadow:var(--shadow-lg);
  padding:clamp(28px,4vw,48px); text-align:center;
}
.sec-hero__dots{
  position:absolute; right:18px; top:18px; width:54px; height:54px;
  background-image:radial-gradient(var(--navy-500) 1.6px, transparent 1.6px);
  background-size:18px 18px; opacity:.5;
}
.sec-hero__title{ font-size:clamp(26px,3.6vw,40px); line-height:1.3; margin-bottom:16px; }
.sec-hero__title em{ font-style:normal; color:var(--gold); }
.sec-hero__lead{ color:var(--gray-600); font-size:15.5px; max-width:520px; margin:0 auto 26px; }
.sec-hero__actions{ display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }

/* ---------- 2. B7 Bento ---------- */
.sec-bento__grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.sec-cell{
  background:#fff; border:1px solid var(--gray-200); border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm); padding:26px 24px; transition:all .3s ease;
}
.sec-cell:hover{ transform:translateY(-5px); box-shadow:var(--shadow-md); }
.sec-cell--big{ grid-column:span 2; }
.sec-cell--navy{ background:var(--navy-900); border-color:var(--navy-900); }
.sec-cell--navy h3{ color:#fff; }
.sec-cell--navy p{ color:rgba(232,238,245,.78); }
.sec-cell svg{ width:30px; height:30px; color:var(--navy-600); stroke-width:1.4; margin-bottom:12px; }
.sec-cell--navy svg{ color:var(--gold); }
.sec-cell:hover svg{ color:var(--gold); }
.sec-cell h3{ font-size:17px; margin-bottom:8px; }
.sec-cell p{ font-size:14px; color:var(--gray-600); line-height:1.75; margin:0; }

/* ---------- 3. B2 错位卡片墙 ---------- */
.sec-cardgrid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.sec-card{
  background:#fff; border:1px solid var(--gray-200); border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm); padding:28px 26px; transition:all .3s ease;
}
.sec-card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-md); }
.sec-card:nth-child(even){ transform:translateY(18px); }
.sec-card:nth-child(even):hover{ transform:translateY(12px); }
.sec-card svg{ width:32px; height:32px; color:var(--navy-600); stroke-width:1.4; margin-bottom:14px; }
.sec-card:hover svg{ color:var(--gold); }
.sec-card h3{ font-size:17px; margin-bottom:10px; }
.sec-card p{ font-size:14px; color:var(--gray-600); line-height:1.75; margin:0; }

/* ---------- 4. B3 步骤时间轴 ---------- */
.sec-flow{ background:var(--gray-100); }
.sec-steps__track{ display:grid; grid-template-columns:repeat(4,1fr); gap:22px; position:relative; }
.sec-steps__track::before{
  content:""; position:absolute; left:12px; right:12px; top:26px; height:1px;
  background:linear-gradient(to right, var(--gold), var(--gray-300) 30%, var(--gray-300) 70%, var(--gold));
}
.sec-step{ position:relative; padding-top:54px; }
.sec-step__num{
  position:absolute; top:0; left:0; display:inline-flex; align-items:center; justify-content:center;
  width:52px; height:52px; border-radius:50%; background:#fff;
  border:1.5px solid var(--navy-600); color:var(--navy-700); font-weight:700;
  box-shadow:var(--shadow-sm);
}
.sec-step h3{ font-size:16.5px; margin-bottom:8px; }
.sec-step p{ font-size:14px; color:var(--gray-600); line-height:1.75; }

/* ---------- 5. B1 统计带 ---------- */
.sec-metrics{ background:linear-gradient(135deg,var(--navy-900),var(--navy-800)); }
.sec-metrics__grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; text-align:center; }
.sec-metric{ position:relative; padding:8px 0; }
.sec-metric + .sec-metric::before{
  content:""; position:absolute; left:0; top:50%; transform:translateY(-50%);
  width:1px; height:46px; background:rgba(232,238,245,.16);
}
.sec-metric .stat-num{ color:#fff; }
.sec-metric .stat-note{ color:rgba(232,238,245,.66); }

/* ---------- 6. B11 安全等级表 ---------- */
.sec-tablewrap{ overflow-x:auto; border-radius:var(--radius-lg); box-shadow:var(--shadow-sm); }
.sec-table{ width:100%; border-collapse:collapse; background:#fff; min-width:720px; }
.sec-table th{ background:var(--navy-900); color:#fff; text-align:left; padding:16px 20px; font-size:14.5px; font-weight:600; }
.sec-table td{ padding:14px 20px; font-size:14px; color:var(--gray-700); border-bottom:1px solid var(--gray-200); }
.sec-table tbody tr:nth-child(odd){ background:var(--gray-50); }
.sec-table tbody tr:hover{ background:var(--blue-soft); }
.sec-table td strong{ color:var(--navy-800); }

/* ---------- 7. B15 CTA ---------- */
.sec-cta{ padding-bottom:clamp(70px,8vw,110px); }
.sec-ctabanner{
  background:linear-gradient(135deg,var(--navy-800),var(--navy-700) 55%,var(--navy-600));
  border-radius:28px; padding:clamp(44px,5vw,72px) clamp(24px,4vw,56px);
  text-align:center; position:relative; overflow:hidden; box-shadow:var(--shadow-lg);
}
.sec-ctabanner__inner{ position:relative; z-index:1; }
.sec-ctabanner::before{
  content:""; position:absolute; left:30px; bottom:30px; width:70px; height:70px;
  background-image:radial-gradient(rgba(233,222,200,.55) 2px, transparent 2px);
  background-size:22px 22px;
}
.sec-ctabanner::after{
  content:""; position:absolute; right:36px; top:28px; width:70px; height:70px;
  background-image:radial-gradient(rgba(232,238,245,.3) 2px, transparent 2px);
  background-size:22px 22px;
}
.sec-ctabanner__title{ color:#fff; font-size:clamp(22px,3vw,32px); margin-bottom:12px; }
.sec-ctabanner__sub{ color:rgba(232,238,245,.78); font-size:15px; margin-bottom:28px; }
.sec-ctabanner__actions{ display:flex; gap:16px; justify-content:center; flex-wrap:wrap; margin-bottom:30px; }
.sec-ctabanner__more{ display:flex; gap:22px; justify-content:center; flex-wrap:wrap; }
.sec-ctabanner__more a{ color:rgba(232,238,245,.7); font-size:13.5px; border-bottom:1px dashed rgba(232,238,245,.3); padding-bottom:2px; }
.sec-ctabanner__more a:hover{ color:var(--gold); }

/* ---------- 响应式 ---------- */
@media (max-width: 992px){
  .sec-hero__grid{ max-width:640px; }
  .sec-hero__card{ margin-top:-60px; }
  .sec-bento__grid{ grid-template-columns:1fr 1fr; }
  .sec-cell--big{ grid-column:span 2; }
  .sec-cardgrid{ grid-template-columns:repeat(2,1fr); }
  .sec-card:nth-child(even){ transform:none; }
  .sec-steps__track{ grid-template-columns:1fr 1fr; gap:36px 22px; }
  .sec-steps__track::before{ display:none; }
  .sec-metrics__grid{ grid-template-columns:repeat(2,1fr); }
}
@media (max-width: 640px){
  .sec-hero__grid{ grid-template-columns:1fr; gap:14px; }
  .sec-hero__img{ transform:none; }
  .sec-hero__card{ margin-top:24px; }
  .sec-bento__grid{ grid-template-columns:1fr; }
  .sec-cell--big{ grid-column:span 1; }
  .sec-cardgrid{ grid-template-columns:1fr; }
  .sec-steps__track{ grid-template-columns:1fr; }
  .sec-metrics__grid{ grid-template-columns:1fr 1fr; gap:14px; }
  .sec-hero__actions .btn{ width:100%; }
}