:root{
  --bg0:#f5f7fb;
  --bg1:#eef2f8;
  --text:#0b1220;
  --muted:rgba(11,18,32,.62);
  --line:rgba(15,23,42,.10);

  --glass:rgba(255,255,255,.72);
  --glass2:rgba(255,255,255,.55);
  --shadow: 0 18px 55px rgba(15,23,42,.10);

  --brand:#2563eb;
  --brand2:#60a5fa;
  --ok:#22c55e;
  --warn:#f59e0b;
}

@keyframes homeGlow {
  0% { opacity: 1; }
  100% { opacity: 1; }
}

body{
  background: linear-gradient(180deg, var(--bg0), var(--bg1));
  color: var(--text);
}

body:before{
  content:"";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(900px 600px at 20% 0%, rgba(37,99,235,.10), transparent 60%),
    radial-gradient(900px 600px at 85% 10%, rgba(96,165,250,.12), transparent 62%);
}

a{ color: inherit; }

/* 容器外观 */
.home-shell{
  padding: 40px 16px 100px;
  max-width: 1400px;
  margin: 0 auto;
}

.home-hero{
  border: 1px solid rgba(15,23,42,.10);
  background: linear-gradient(180deg, rgba(255,255,255,.85), rgba(255,255,255,.7));
  border-radius: 20px;
  padding: 28px 32px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  position: relative;
  overflow: hidden;
  color: var(--text);
}

.home-hero:before{
  content:"";
  position:absolute;
  inset:-80px;
  background:
    radial-gradient(520px 320px at 18% 10%, rgba(37,99,235,.10), transparent 62%),
    radial-gradient(520px 320px at 82% 20%, rgba(96,165,250,.12), transparent 62%);
  filter: blur(18px);
  pointer-events:none;
  opacity: .9;
}

.home-hero > *{
  position: relative;
  z-index: 1;
}

.home-brand{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.home-brand-left{
  display:flex;
  align-items:center;
  gap: 12px;
}

.home-logo{
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(37,99,235,.18), rgba(96,165,250,.18));
  border: 1px solid rgba(15,23,42,.10);
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight: 800;
  letter-spacing:.5px;
}

.home-title{
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.2;
  color: rgba(11,18,32,.92);
}

.home-subtitle{
  margin: 4px 0 0;
  font-size: 12px;
  color: rgba(11,18,32,.62);
}

.home-cta{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content:flex-end;
}

.home-cta .btn{
  border-radius: 12px;
  padding: 10px 12px;
  font-weight: 700;
  border: 1px solid rgba(15,23,42,.12);
}

.btn-home-primary{
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  color: #ffffff;
  border: 0;
  transition: transform .15s ease, filter .15s ease, box-shadow .15s ease;
  box-shadow: 0 8px 20px rgba(37,99,235,.25);
}

.btn-home-ghost{
  background: #ffffff;
  color: rgba(11,18,32,.8);
  border: 1px solid rgba(15,23,42,.15);
  transition: transform .15s ease, background .15s ease, border-color .15s ease, box-shadow .15s ease;
  box-shadow: 0 2px 8px rgba(15,23,42,.06);
}

.btn-home-primary:hover,
.btn-home-ghost:hover{
  transform: translateY(-1px);
}

.btn-home-primary:active,
.btn-home-ghost:active{
  transform: translateY(0px);
}

.home-grid{
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 24px;
  align-items: stretch;
}

.home-card{
  border: 1px solid rgba(15,23,42,.10);
  background: linear-gradient(180deg, var(--glass), var(--glass2));
  border-radius: 16px;
  padding: 24px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  position: relative;
  overflow: hidden;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
  color: rgba(11,18,32,.88);
  display: flex;
  flex-direction: column;
  will-change: transform;
}

.home-card:hover{
  transform: translateY(-2px);
  border-color: rgba(37,99,235,.22);
  box-shadow: 0 20px 40px rgba(15,23,42,.08);
}

/* 减少移动端毛玻璃效果提升性能 */
@media (max-width: 768px){
  .home-card{
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(255,255,255,.95);
    transition: none;
    will-change: auto;
  }
  .home-card:hover{
    transform: none;
    box-shadow: none;
  }
  .home-hero{
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(255,255,255,.95);
  }
}

.home-card:before,
.home-card:after{
  display: none;
}

.home-card > *{
  position: relative;
  z-index: 1;
}

.home-card h3{
  margin: 0 0 10px;
  font-size: 14px;
  font-weight: 800;
  color: var(--text);
}

.home-card p{
  margin: 0;
  color: var(--muted);
}

.home-notice{
  display:flex;
  gap: 12px;
  align-items:flex-start;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid rgba(245,158,11,.25);
  background: linear-gradient(180deg, rgba(254,252,232,.9), rgba(255,255,255,.7));
  margin-bottom: 16px;
}

.home-notice .badge{
  background: rgba(245,158,11,.15);
  border: 1px solid rgba(245,158,11,.25);
  color: #92400e;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 6px;
}

.home-form .input-group-addon{
  background: rgba(255,255,255,.75);
  color: rgba(11,18,32,.75);
  border-color: rgba(15,23,42,.10);
  border-top-left-radius: 12px;
  border-bottom-left-radius: 12px;
}

.home-form .form-control{
  background: rgba(255,255,255,.78);
  color: rgba(11,18,32,.92);
  border-color: rgba(15,23,42,.10);
  box-shadow: none;
  border-top-right-radius: 12px;
  border-bottom-right-radius: 12px;
}

.home-form .form-control:focus{
  border-color: rgba(37,99,235,.45);
  box-shadow: 0 0 0 3px rgba(37,99,235,.14);
}

.home-form .form-control::placeholder{ color: rgba(11,18,32,.40); }

.home-form .input-group{
  margin-bottom: 12px;
}

.home-form .input-group:last-of-type{
  margin-bottom: 0;
}

.home-tabs .tab-content > .tab-pane-custom{
  display: none;
  height: 100%;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .25s ease, transform .25s ease;
}

.home-tabs .tab-content > .tab-pane-custom.active.in{
  display: flex;
  flex-direction: column;
  flex: 1;
  opacity: 1;
  transform: translateY(0);
  animation: tabFadeIn .3s ease;
}

@keyframes tabFadeIn{
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.home-form blockquote{
  border-left: 0;
  margin: 12px 0 0;
  padding: 0;
}

.home-form #submit{
  width: 100%;
  border-radius: 14px;
  padding: 12px 14px;
  font-weight: 900;
  border: 0;
  background: linear-gradient(135deg, rgba(37,99,235,.96), rgba(96,165,250,.90));
  color: #ffffff;
  transition: transform .15s ease, filter .15s ease, box-shadow .15s ease;
  box-shadow: 0 16px 34px rgba(37,99,235,.18);
}

.home-form #submit:hover{
  filter: brightness(1.03);
  transform: translateY(-1px);
}

.home-form #submit:active{
  transform: translateY(0px);
}

.home-tabs .nav-tabs{
  border-bottom: 2px solid var(--line);
  display: flex;
  gap: 4px;
}

.home-tabs .nav-tabs>li{
  margin-bottom: -2px;
}

.home-tabs .nav-tabs>li>a{
  border: 0;
  color: rgba(11,18,32,.55);
  background: transparent;
  border-radius: 8px 8px 0 0;
  padding: 10px 18px;
  font-weight: 500;
  transition: all .2s ease;
  margin-right: 0;
}

.home-tabs .nav-tabs>li>a:hover{
  color: rgba(11,18,32,.75);
  background: rgba(255,255,255,.5);
}

.home-tabs .nav-tabs>li.active>a,
.home-tabs .nav-tabs>li.active>a:hover,
.home-tabs .nav-tabs>li.active>a:focus{
  color: #2563eb;
  background: rgba(37,99,235,.08);
  border-bottom: 2px solid #2563eb;
  font-weight: 600;
}

.home-footer{
  margin-top: 14px;
  text-align:center;
  color: rgba(11,18,32,.45);
  font-size: 12px;
}

/* 保留原来的悬浮按钮，但把视觉变成磨砂 */
.float-contact-box .float-btn{
  background: rgba(255,255,255,.85);
  border: 1px solid rgba(15,23,42,.12);
  color: rgba(11,18,32,.85);
  font-weight: 700;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform .15s ease, filter .15s ease, border-color .15s ease;
  box-shadow: 0 4px 12px rgba(15,23,42,.15);
}

.float-contact-box .float-btn:hover{
  transform: translateY(-2px);
  filter: brightness(1.05);
  border-color: rgba(37,99,235,.20);
}

.float-contact-box .float-btn.qq{
  background: rgba(37,99,235,.15);
  border-color: rgba(37,99,235,.25);
  color: #1d4ed8;
}

.float-contact-box .float-btn.kf{
  background: rgba(139,92,246,.15);
  border-color: rgba(139,92,246,.25);
  color: #7c3aed;
}

@media (max-width: 992px){
  .home-grid{ grid-template-columns: 1fr; }
  .home-cta{ justify-content:flex-start; }
  .home-shell { padding: 20px 12px 80px; }
  .home-brand{ flex-direction: column; align-items: flex-start; gap: 16px; }
  .home-cta{ width: 100%; justify-content: stretch; }
  .home-cta .btn{ flex: 1; text-align: center; }
}

@media (max-width: 768px){
  .home-shell{ padding: 12px 10px 86px; }
  .home-hero{ padding: 16px; border-radius: 14px; }
  .home-card{ padding: 16px; border-radius: 14px; }
  
  /* 移动端品牌区域优化 */
  .home-brand{ flex-direction: column; gap: 14px; }
  .home-brand-left{ width: 100%; }
  .home-logo{ width: 36px; height: 36px; font-size: 16px; margin-right: 10px; }
  .home-title{ font-size: 15px; line-height: 1.4; }
  .home-subtitle{ font-size: 11px; display: none; } /* 移动端隐藏副标题节省空间 */
  
  /* 移动端按钮布局 */
  .home-cta{ 
    width: 100%; 
    display: grid; 
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .home-cta .btn{ 
    padding: 10px 8px; 
    font-size: 13px; 
    border-radius: 10px;
    white-space: nowrap;
  }
  .home-cta .btn-home-primary{
    grid-column: 1 / -1; /* 蓝色按钮占满整行 */
  }
  
  /* 移动端输入框重新设计 */
  .home-form .input-group{ 
    display: block; 
    margin-bottom: 14px; 
    width: 100%;
  }
  .home-form .input-group-addon{
    display: block;
    width: 100%;
    border: none;
    background: transparent;
    padding: 0 0 6px 2px;
    font-size: 13px;
    font-weight: 500;
    color: rgba(11,18,32,.7);
    text-align: left;
  }
  .home-form .input-group-addon .glyphicon{
    margin-right: 4px;
    color: #2563eb;
    font-size: 12px;
  }
  .home-form .form-control{
    display: block;
    width: 100%;
    border: 1px solid rgba(15,23,42,.12);
    border-radius: 10px;
    padding: 11px 12px;
    font-size: 14px;
    height: auto;
    background: rgba(255,255,255,.85);
  }
  .home-form .form-control:focus{
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37,99,235,.1);
    background: #fff;
  }
  
  /* 移动端标签页 */
  .home-tabs .nav-tabs{ gap: 2px; }
  .home-tabs .nav-tabs>li>a{ padding: 10px 16px; font-size: 14px; }
  
  /* 移动端通知栏 */
  .home-notice{ padding: 12px; gap: 8px; flex-direction: column; }
  .home-notice .badge{ padding: 3px 8px; font-size: 11px; align-self: flex-start; }
  
  /* 移动端提交按钮 */
  .home-form #submit{ padding: 14px; font-size: 15px; }
  
  /* 移动端FAQ */
  .home-card h3{ font-size: 14px; margin-bottom: 12px; }
  
  /* 移动端悬浮按钮 */
  .float-contact-box{ right: 8px; bottom: 65px; }
  .float-contact-box .float-btn{ width: 40px; height: 40px; line-height: 40px; font-size: 10px; }
}