/* ============================================================
   hhlsq.com — sanmenxia-trade.css 三门峡商贸企业建站页专属样式
   布局指纹：H6 卡片瀑布 Hero ｜B4 图文交替｜B2 卡片墙｜B1 统计带｜B11 表格对比｜B13 套餐｜B15 CTA
   签名元素：S1 旋转编号圆环
   ============================================================ */

/* ---------- 1. Hero H6 卡片瀑布 + S1 旋转编号圆环 ---------- */
.sm-hero{
  background:var(--gray-100);
  padding:clamp(48px,6vw,80px) 0 clamp(80px,9vw,120px);
  position:relative; overflow:hidden;
}
.sm-hero__head{ margin-bottom:clamp(36px,5vw,56px); }
.sm-hero__title em{ font-style:normal; color:var(--gold); }

.sm-hero__cards{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  align-items:start;
  position:relative;
}
.sm-hero__card{
  background:#fff; border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md); overflow:hidden;
  transition:transform .35s ease, box-shadow .35s ease;
}
.sm-hero__card:hover{ transform:translateY(-8px) rotate(0deg) !important; box-shadow:var(--shadow-lg); }
/* 瀑布错位：递增 translateY + 交替 rotate */
.sm-hero__card--1{ transform:translateY(0) rotate(-1.2deg); }
.sm-hero__card--2{ transform:translateY(32px) rotate(1.2deg); z-index:2; }
.sm-hero__card--3{ transform:translateY(64px) rotate(-0.6deg); z-index:1; display:flex; flex-direction:column; padding:32px 28px; justify-content:center; min-height:320px; }

.sm-hero__card-media{ aspect-ratio:16/10; overflow:hidden; }
.sm-hero__card-media img{ width:100%; height:100%; object-fit:cover; }
.sm-hero__card-body{ padding:22px 24px 26px; }
.sm-hero__card-body--plain{ padding:0; }
.sm-hero__card-tag{
  display:inline-block; font-size:12px; letter-spacing:.14em;
  color:var(--gold); border:1px solid var(--gold);
  border-radius:var(--radius-pill); padding:3px 12px; margin-bottom:12px;
}
.sm-hero__card-body h3{ font-size:18px; margin-bottom:8px; }
.sm-hero__card-body p{ font-size:14px; color:var(--gray-600); margin:0 0 16px; line-height:1.7; }

/* S1 旋转编号圆环 */
.sm-hero__ring{
  position:relative;
  width:110px; height:110px;
  margin:0 auto 22px;
  display:flex; align-items:center; justify-content:center;
}
.sm-hero__ring::before{
  content:""; position:absolute; inset:0;
  border-radius:50%;
  border:2px dashed var(--gold);
  animation:sm-ring-spin 18s linear infinite;
}
.sm-hero__ring::after{
  content:""; position:absolute; inset:10px;
  border-radius:50%;
  border:1px solid var(--gray-300);
}
.sm-hero__ring-num{
  font-size:30px; font-weight:700; color:var(--navy-700);
  position:relative; z-index:1;
}
.sm-hero__card:hover .sm-hero__ring::before{ animation-duration:4s; }
@keyframes sm-ring-spin{ to{ transform:rotate(360deg); } }

.sm-hero__actions{ display:flex; gap:12px; flex-wrap:wrap; justify-content:center; }

/* ---------- 2. B4 图文交替流 ---------- */
.sm-feature__flow{
  display:flex; flex-direction:column; gap:clamp(40px,6vw,72px);
}
.sm-pair{
  display:grid; grid-template-columns:1fr 1fr;
  gap:44px; align-items:center;
}
.sm-pair--reverse .sm-pair__media{ order:2; }
.sm-pair__media img{
  width:100%; aspect-ratio:16/9; object-fit:cover;
  border-radius:var(--radius-lg); box-shadow:var(--shadow-md);
}
.sm-pair__num{
  font-size:46px; font-weight:700; color:transparent;
  -webkit-text-stroke:1.5px var(--gold);
  line-height:1; display:block; margin-bottom:10px;
}
.sm-pair__body h3{ font-size:22px; margin-bottom:12px; }
.sm-pair__body p{ color:var(--gray-600); font-size:15px; margin-bottom:10px; }
.sm-pair__link a{ font-weight:600; color:var(--navy-700); }
.sm-pair__link a:hover{ color:var(--gold); }

/* ---------- 3. B2 错位卡片墙 ---------- */
.sm-trust__grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:24px;
}
.sm-trust__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;
}
.sm-trust__card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-md); }
.sm-trust__card:nth-child(even){ transform:translateY(14px); }
.sm-trust__card:nth-child(even):hover{ transform:translateY(8px); }
.sm-trust__card svg{
  width:32px; height:32px; color:var(--navy-600);
  stroke-width:1.4; margin-bottom:14px;
}
.sm-trust__card:hover svg{ color:var(--gold); }
.sm-trust__card h3{ font-size:17px; margin-bottom:10px; }
.sm-trust__card p{ font-size:14px; color:var(--gray-600); margin:0; line-height:1.75; }

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

/* ---------- 5. B11 表格对比 ---------- */
.sm-compare__table-wrap{
  overflow-x:auto;
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);
  background:#fff;
}
.sm-compare__table{
  width:100%; border-collapse:collapse;
  min-width:640px; font-size:14.5px;
}
.sm-compare__table thead{
  background:var(--navy-900); color:#fff;
}
.sm-compare__table th{
  padding:16px 20px; text-align:left;
  font-weight:600; font-size:14.5px;
}
.sm-compare__table td{
  padding:14px 20px;
  border-bottom:1px solid var(--gray-200);
  color:var(--gray-700);
}
.sm-compare__table tbody tr:nth-child(even){ background:var(--gray-50); }
.sm-compare__table tbody tr:hover{ background:var(--blue-soft); }
.sm-compare__table td:first-child{
  font-weight:600; color:var(--navy-900);
}
.sm-compare__cell--gold{
  background:var(--gold-soft) !important;
  color:var(--navy-900); font-weight:600; text-align:center;
}

/* ---------- 6. B13 套餐卡片 ---------- */
.sm-plan__grid{
  display:grid; grid-template-columns:repeat(3,1fr);
  gap:24px; align-items:start;
}
.sm-plan__card{
  background:#fff; border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm); padding:32px 26px;
  position:relative; text-align:center; transition:all .3s ease;
}
.sm-plan__card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-md); }
.sm-plan__card--hot{
  background:var(--navy-900); color:#E8EEF5;
  transform:translateY(-18px); box-shadow:var(--shadow-lg);
}
.sm-plan__card--hot:hover{ transform:translateY(-22px); }
.sm-plan__card--hot h3{ color:#fff; }
.sm-plan__tag{
  display:inline-block; font-size:12px; letter-spacing:.14em;
  color:var(--gold); border:1px solid var(--gold);
  border-radius:var(--radius-pill); padding:4px 14px; margin-bottom:16px;
}
.sm-plan__card--hot .sm-plan__tag{ background:var(--gold); color:#fff; }
.sm-plan__name{ font-size:19px; margin-bottom:10px; }
.sm-plan__price{
  font-size:32px; font-weight:700; color:var(--navy-700); margin-bottom:20px;
}
.sm-plan__price em{ font-style:normal; font-size:18px; }
.sm-plan__price small{ font-size:13px; font-weight:400; color:var(--gray-500); margin-left:2px; }
.sm-plan__card--hot .sm-plan__price{ color:#fff; }
.sm-plan__list{ text-align:left; margin-bottom:22px; }
.sm-plan__list li{
  position:relative; padding:7px 0 7px 22px;
  font-size:14px; color:var(--gray-600);
}
.sm-plan__card--hot .sm-plan__list li{ color:rgba(232,238,245,.82); }
.sm-plan__list li::before{ content:"✓"; position:absolute; left:0; color:var(--gold); font-weight:700; }
.sm-plan__card .btn{ width:100%; }

/* ---------- 7. B15 CTA ---------- */
.sm-cta{ padding-bottom:clamp(70px,8vw,110px); }
.sm-cta__banner{
  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);
}
.sm-cta__banner::before{
  content:""; position:absolute; right:-90px; top:-90px;
  width:280px; height:280px; border-radius:50%;
  border:1px dashed rgba(255,255,255,.22);
}
.sm-cta__banner::after{
  content:""; position:absolute; left:-60px; bottom:-120px;
  width:220px; height:220px; border-radius:50%;
  border:1px dashed rgba(176,141,74,.4);
}
.sm-cta__inner{ position:relative; z-index:1; }
.sm-cta__title{ color:#fff; font-size:clamp(22px,3vw,32px); margin-bottom:12px; }
.sm-cta__sub{ color:rgba(232,238,245,.78); font-size:15px; margin-bottom:28px; }
.sm-cta__actions{ display:flex; gap:16px; justify-content:center; flex-wrap:wrap; }
.sm-cta__ghost{ border-color:rgba(255,255,255,.5); color:#fff; }
.sm-cta__ghost:hover{ background:#fff; color:var(--navy-700); }

/* ---------- 响应式 ---------- */
@media (max-width: 992px){
  .sm-hero__cards{ grid-template-columns:1fr; max-width:480px; margin:0 auto; }
  .sm-hero__card--1,.sm-hero__card--2,.sm-hero__card--3{ transform:none; }
  .sm-pair{ grid-template-columns:1fr; }
  .sm-pair--reverse .sm-pair__media{ order:0; }
  .sm-trust__grid{ grid-template-columns:repeat(2,1fr); }
  .sm-stats__grid{ grid-template-columns:repeat(2,1fr); }
  .sm-plan__grid{ grid-template-columns:1fr; max-width:480px; margin:0 auto; }
  .sm-plan__card--hot{ transform:none; }
  .sm-plan__card--hot:hover{ transform:translateY(-6px); }
}
@media (max-width: 640px){
  .sm-trust__grid{ grid-template-columns:1fr; }
  .sm-trust__card:nth-child(even){ transform:none; }
  .sm-trust__card:nth-child(even):hover{ transform:translateY(-6px); }
  .sm-stats__grid{ grid-template-columns:1fr 1fr; gap:14px; }
  .sm-compare__table th,.sm-compare__table td{ padding:12px 14px; font-size:13.5px; }
}