:root{
  --cream:#FFF9F0;
  --cream-deep:#FFF2E6;
  --coral:#FF6B57;
  --coral-deep:#F0503C;
  --teal:#2DA89B;
  --teal-deep:#1B7A74;
  --yellow:#FFC857;
  --ink:#2D2D2D;
  --muted:#7A7A7A;
  --white:#FFFFFF;
  --radius:22px;
  --shadow-sm:0 4px 16px rgba(45,45,45,0.06);
  --shadow-md:0 8px 30px rgba(255,107,87,0.14);
  --shadow-lg:0 16px 48px rgba(45,45,45,0.10);
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

body{
  font-family:system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x:hidden;
  background:
    radial-gradient(circle at 92% 8%, rgba(255,200,87,0.10) 0%, transparent 28%),
    radial-gradient(circle at 3% 25%, rgba(255,107,87,0.05) 0%, transparent 22%),
    radial-gradient(circle at 60% 80%, rgba(45,168,155,0.05) 0%, transparent 30%),
    var(--cream);
  color:var(--ink);
  line-height:1.7;
  letter-spacing:0.01em;
}

::selection{ background:var(--yellow); color:var(--ink); }

::-webkit-scrollbar{ width:10px; }
::-webkit-scrollbar-track{ background:var(--cream-deep); }
::-webkit-scrollbar-thumb{ background:var(--coral); border-radius:6px; }
::-webkit-scrollbar-thumb:hover{ background:var(--coral-deep); }

.container{ max-width:1200px; margin:0 auto; padding:0 24px; }

.section{
  padding:80px 0;
  position:relative;
}

.section:nth-child(even){
  background:var(--cream-deep);
}

.section .container{
  position:relative;
  z-index:2;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  z-index:1000;
  background:rgba(255,249,240,0.95);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(45,45,45,0.06);
  box-shadow:0 1px 20px rgba(45,45,45,0.02);
}

.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:68px;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

.logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:900;
  font-size:1.25rem;
  text-decoration:none;
  color:var(--ink);
  letter-spacing:-0.02em;
}

.logo-icon{
  width:38px;
  height:38px;
  border-radius:14px 6px 14px 6px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1rem;
  background:linear-gradient(135deg, var(--yellow), var(--coral));
  color:var(--white);
  box-shadow:0 4px 12px rgba(255,107,87,0.30);
}

.logo span:last-child{
  font-size:0.6rem;
  font-weight:700;
  color:var(--muted);
  letter-spacing:0.08em;
  background:rgba(45,168,155,0.10);
  padding:2px 8px;
  border-radius:20px;
  margin-left:2px;
}

.main-nav{
  display:flex;
  align-items:center;
  gap:28px;
  list-style:none;
}

.main-nav a{
  text-decoration:none;
  font-size:0.9rem;
  font-weight:700;
  color:var(--ink);
  letter-spacing:0.03em;
  transition:color 0.25s, transform 0.25s;
  position:relative;
  padding:4px 0;
}

.main-nav a::after{
  content:'';
  position:absolute;
  left:0;
  bottom:-2px;
  width:0%;
  height:2px;
  border-radius:4px;
  background:linear-gradient(90deg, var(--coral), var(--yellow));
  transition:width 0.3s ease;
}

.main-nav a:hover{
  color:var(--coral);
}

.main-nav a:hover::after{
  width:100%;
}

.nav-cta{
  padding:9px 20px;
  border-radius:12px;
  color:#fff!important;
  font-weight:700!important;
  background:linear-gradient(135deg, var(--coral), var(--coral-deep));
  box-shadow:0 4px 14px rgba(255,107,87,0.32);
  display:inline-block;
  transition:transform 0.25s, box-shadow 0.25s!important;
}

.nav-cta::after{ display:none; }
.nav-cta:hover{
  transform:translateY(-2px);
  box-shadow:0 6px 20px rgba(255,107,87,0.42)!important;
  color:#fff!important;
}

.menu-toggle{
  display:none;
  background:linear-gradient(135deg, var(--coral), var(--yellow));
  color:var(--white);
  border:none;
  width:44px;
  height:44px;
  border-radius:12px;
  align-items:center;
  justify-content:center;
  font-size:1.3rem;
  cursor:pointer;
  box-shadow:0 4px 12px rgba(255,107,87,0.28);
  text-decoration:none;
  line-height:1;
}

.menu-toggle::before{ content:'☰'; }

/* ---------- Hero ---------- */
.hero{
  min-height:70vh;
  display:flex;
  align-items:center;
  gap:56px;
  padding-top:90px;
  position:relative;
  overflow:hidden;
}

.hero::before{
  content:'';
  position:absolute;
  top:12%;
  right:6%;
  width:220px;
  height:220px;
  background-image:radial-gradient(circle, rgba(255,200,87,0.35) 2px, transparent 2px);
  background-size:18px 18px;
  border-radius:50%;
  z-index:1;
  pointer-events:none;
}

.hero::after{
  content:'';
  position:absolute;
  bottom:-60px;
  left:-60px;
  width:260px;
  height:260px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(45,168,155,0.12) 0%, transparent 70%);
  z-index:1;
  pointer-events:none;
}

.hero-content{
  max-width:720px;
  position:relative;
  z-index:2;
  flex:1;
}

.hero-eyebrow{
  display:inline-block;
  font-size:0.85rem;
  font-weight:800;
  padding:5px 16px;
  border-radius:24px;
  margin-bottom:18px;
  background:var(--teal);
  color:var(--white);
  letter-spacing:0.06em;
  box-shadow:0 4px 12px rgba(45,168,155,0.25);
}

.hero h1{
  font-size:3rem;
  line-height:1.22;
  margin-bottom:20px;
  font-weight:900;
  letter-spacing:-0.02em;
  color:var(--ink);
  text-shadow:4px 4px 0 rgba(255,200,87,0.22);
}

.hero p{
  font-size:1.1rem;
  color:var(--muted);
  max-width:560px;
  margin-bottom:32px;
  line-height:1.8;
}

.hero-buttons{
  display:flex;
  gap:14px;
}

.hero-image{
  flex:0 0 420px;
  height:420px;
  border-radius:50%;
  overflow:visible;
  position:relative;
  z-index:2;
  background:
    radial-gradient(circle at 33% 28%, rgba(255,255,255,0.35) 0%, transparent 18%),
    linear-gradient(140deg, var(--yellow) 0%, var(--coral) 55%, var(--coral-deep) 100%);
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:24px 24px 80px rgba(255,107,87,0.24);
}

.hero-image::before{
  content:'';
  position:absolute;
  inset:-16px;
  border-radius:50%;
  border:2px dashed rgba(255,200,87,0.55);
  animation:spin 30s linear infinite;
}

@keyframes spin{
  from{ transform:rotate(0deg); }
  to{ transform:rotate(360deg); }
}

.hero-image::after{
  content:'';
  width:0;
  height:0;
  border-top:44px solid transparent;
  border-bottom:44px solid transparent;
  border-left:68px solid var(--white);
  border-radius:4px;
  filter:drop-shadow(0 4px 8px rgba(0,0,0,0.12));
  margin-left:12px;
}

.hero-image img{
  display:none;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:14px 30px;
  border-radius:14px;
  font-weight:800;
  cursor:pointer;
  border:none;
  text-decoration:none;
  transition:transform 0.25s, box-shadow 0.25s, background 0.25s;
  font-size:0.95rem;
  letter-spacing:0.04em;
}

.btn-primary{
  background:linear-gradient(135deg, var(--coral) 0%, var(--coral-deep) 100%);
  color:var(--white);
  box-shadow:0 6px 20px rgba(255,107,87,0.36);
}

.btn-primary:hover{
  transform:translateY(-3px);
  box-shadow:0 10px 28px rgba(255,107,87,0.44);
}

.btn-outline{
  background:transparent;
  border:2px solid var(--teal);
  color:var(--teal);
  box-shadow:inset 0 0 0 0 var(--teal);
}

.btn-outline:hover{
  background:var(--teal);
  color:var(--white);
  transform:translateY(-3px);
  box-shadow:0 8px 20px rgba(45,168,155,0.30);
}

/* ---------- 标签 / 标题 ---------- */
.section-label{
  display:inline-block;
  font-size:0.78rem;
  font-weight:900;
  letter-spacing:3px;
  margin-bottom:14px;
  color:var(--coral);
  text-transform:uppercase;
  background:rgba(255,107,87,0.08);
  padding:5px 14px;
  border-radius:20px;
}

.section-title{
  font-size:2rem;
  margin-bottom:16px;
  font-weight:900;
  letter-spacing:-0.02em;
  color:var(--ink);
  position:relative;
  display:inline-block;
}

.section-title::after{
  content:'';
  position:absolute;
  bottom:-8px;
  left:0;
  width:52px;
  height:4px;
  border-radius:3px;
  background:linear-gradient(90deg, var(--coral), var(--yellow));
}

.section-desc{
  max-width:600px;
  color:var(--muted);
  margin-bottom:44px;
  font-size:1rem;
  line-height:1.7;
}

.seo-description{
  max-width:600px;
  margin:0 auto 48px;
  color:var(--muted);
  line-height:1.8;
  font-size:0.95rem;
}

/* ---------- 卡片网格 ---------- */
.cards-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  gap:26px;
}

.category-card{
  border-radius:var(--radius);
  padding:32px 28px;
  border:1.5px solid rgba(45,45,45,0.05);
  background:var(--white);
  position:relative;
  overflow:hidden;
  transition:transform 0.3s ease, box-shadow 0.3s ease;
}

.category-card::before{
  content:'';
  position:absolute;
  top:0;
  right:0;
  width:90px;
  height:90px;
  border-radius:0 0 0 50%;
  background:radial-gradient(circle, rgba(255,200,87,0.10) 1px, transparent 1px);
  background-size:10px 10px;
  pointer-events:none;
}

.category-card:hover{
  transform:translateY(-6px) rotate(-0.5deg);
  box-shadow:var(--shadow-md);
}

.card-icon{
  width:56px;
  height:56px;
  border-radius:16px 8px 16px 8px;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:18px;
  font-size:1.4rem;
  color:var(--white);
  background:linear-gradient(135deg, var(--teal), var(--teal-deep));
  box-shadow:0 6px 16px rgba(45,168,155,0.25);
}

.category-card:nth-child(2) .card-icon{
  background:linear-gradient(135deg, var(--coral), var(--coral-deep));
  box-shadow:0 6px 16px rgba(255,107,87,0.25);
}

.category-card:nth-child(3) .card-icon{
  background:linear-gradient(135deg, var(--yellow), #F5A623);
  box-shadow:0 6px 16px rgba(255,200,87,0.35);
}

.category-card:nth-child(4) .card-icon{
  background:linear-gradient(135deg, #5B7FFF, #3D5AFE);
  box-shadow:0 6px 16px rgba(93,127,255,0.25);
}

.category-card h3{
  font-size:1.1rem;
  margin-bottom:10px;
  font-weight:800;
}

.category-card p{
  font-size:0.88rem;
  color:var(--muted);
  margin-bottom:18px;
  line-height:1.65;
}

.card-link{
  font-weight:700;
  font-size:0.85rem;
  text-decoration:none;
  color:var(--coral);
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:gap 0.25s;
}

.card-link:hover{
  gap:10px;
}

/* ---------- 特性区块 ---------- */
.feature-block{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px;
  align-items:center;
}

.feature-image{
  border-radius:28px 12px 28px 12px;
  overflow:hidden;
  position:relative;
  background:linear-gradient(135deg, var(--teal) 0%, var(--teal-deep) 100%);
  min-height:320px;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:20px 20px 60px rgba(45,168,155,0.18);
}

.feature-image::before{
  content:'';
  position:absolute;
  width:160px;
  height:160px;
  border-radius:50%;
  background:rgba(255,255,255,0.18);
  top:50%;
  left:50%;
  transform:translate(-50%,-50%);
  box-shadow:
    0 0 0 30px rgba(255,255,255,0.08),
    0 0 0 60px rgba(255,255,255,0.04);
}

.feature-image::after{
  content:'';
  position:absolute;
  bottom:-30px;
  right:-30px;
  width:120px;
  height:120px;
  border-radius:50%;
  background:rgba(255,200,87,0.25);
}

.feature-image img{
  width:100%;
  height:100%;
  object-fit:cover;
  position:relative;
  z-index:2;
}

.feature-text{
  padding:10px 0;
  position:relative;
  z-index:2;
}

.feature-text h3{
  font-size:1.5rem;
  font-weight:900;
  margin-bottom:14px;
  letter-spacing:-0.01em;
}

.feature-text p{
  color:var(--muted);
  margin-bottom:22px;
  font-size:0.95rem;
}

.feature-list{
  list-style:none;
}

.feature-list li{
  padding:8px 0;
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:600;
  font-size:0.92rem;
  color:var(--ink);
}

.feature-list li::before{
  content:'✓';
  font-weight:900;
  width:26px;
  height:26px;
  border-radius:50%;
  background:rgba(45,168,155,0.12);
  color:var(--teal);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:0.75rem;
  flex-shrink:0;
}

/* ---------- 统计条 ---------- */
.stats-bar{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  text-align:center;
}

.stat-item{
  padding:36px 24px;
  border-radius:var(--radius);
  border:1.5px solid rgba(45,45,45,0.05);
  background:var(--white);
  position:relative;
  overflow:hidden;
  transition:transform 0.3s, box-shadow 0.3s;
  box-shadow:var(--shadow-sm);
}

.stat-item:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
}

.stat-item::before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:5px;
  background:linear-gradient(90deg, var(--coral), var(--yellow));
}

.stat-number{
  font-size:2.4rem;
  font-weight:900;
  color:var(--coral);
  line-height:1.2;
  letter-spacing:-0.02em;
}

.stat-label{
  font-size:0.88rem;
  color:var(--muted);
  margin-top:8px;
  font-weight:600;
}

/* ---------- 内容墙 ---------- */
.content-wall{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:26px;
}

.content-wall-item{
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid rgba(45,45,45,0.05);
  background:var(--white);
  transition:transform 0.3s, box-shadow 0.3s;
  box-shadow:var(--shadow-sm);
}

.content-wall-item:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
}

.content-wall-item img{
  width:100%;
  height:200px;
  object-fit:cover;
  background:linear-gradient(135deg, var(--coral), var(--yellow));
  display:block;
}

.content-wall-body{
  padding:22px;
}

.content-wall-body h4{
  font-size:1.05rem;
  margin-bottom:8px;
  font-weight:800;
}

.content-wall-body p{
  font-size:0.85rem;
  color:var(--muted);
  line-height:1.6;
}

.content-wall-body .tag{
  display:inline-block;
  font-size:0.7rem;
  font-weight:800;
  padding:3px 10px;
  border-radius:14px;
  color:var(--teal);
  background:rgba(45,168,155,0.10);
  margin-top:10px;
  letter-spacing:0.05em;
}

/* ---------- FAQ ---------- */
.faq-list{
  max-width:800px;
  margin:0 auto;
}

.faq-item{
  border:1.5px solid rgba(45,45,45,0.06);
  border-radius:16px;
  margin-bottom:10px;
  overflow:hidden;
  cursor:pointer;
  background:var(--white);
  transition:border-color 0.3s, box-shadow 0.3s;
}

.faq-item:hover{
  border-color:rgba(255,107,87,0.20);
}

.faq-item .faq-question{
  padding:18px 24px;
  font-weight:700;
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:0.95rem;
  background:var(--white);
}

.faq-item .faq-question::after{
  content:'+';
  font-size:1.4rem;
  font-weight:400;
  color:var(--coral);
  transition:transform 0.3s, color 0.3s;
}

.faq-item.open .faq-question::after{
  transform:rotate(45deg);
  color:var(--teal);
}

.faq-item .faq-answer{
  padding:0 24px 18px;
  display:none;
  color:var(--muted);
  font-size:0.92rem;
  line-height:1.7;
}

.faq-item.open .faq-answer{
  display:block;
}

/* ---------- CTA 横幅 ---------- */
.cta-banner{
  padding:60px 48px;
  text-align:center;
  border-radius:28px 10px 28px 10px;
  background:
    radial-gradient(circle at 20% 20%, rgba(255,255,255,0.25) 0%, transparent 30%),
    radial-gradient(circle at 80% 80%, rgba(255,200,87,0.30) 0%, transparent 28%),
    linear-gradient(135deg, var(--coral) 0%, var(--coral-deep) 100%);
  color:var(--white);
  position:relative;
  overflow:hidden;
  box-shadow:0 20px 60px rgba(255,107,87,0.30);
}

.cta-banner::before{
  content:'';
  position:absolute;
  top:-40px;
  right:-40px;
  width:160px;
  height:160px;
  border-radius:50%;
  background-image:radial-gradient(circle, rgba(255,255,255,0.35) 2px, transparent 2px);
  background-size:12px 12px;
  pointer-events:none;
}

.cta-banner h2{
  color:var(--white);
  font-size:2rem;
  font-weight:900;
  margin-bottom:12px;
  letter-spacing:-0.01em;
}

.cta-banner p{
  color:rgba(255,255,255,0.85);
  max-width:520px;
  margin:0 auto 28px;
  font-size:1rem;
}

.cta-banner .btn-primary{
  background:var(--white);
  color:var(--coral);
  box-shadow:0 6px 20px rgba(0,0,0,0.12);
}

.cta-banner .btn-primary:hover{
  transform:translateY(-3px) scale(1.03);
  box-shadow:0 10px 30px rgba(0,0,0,0.16);
}

/* ---------- 页脚 ---------- */
.site-footer{
  padding:70px 0 30px;
  background:var(--cream);
  border-top:1px solid rgba(45,45,45,0.04);
}

.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:40px;
}

.footer-brand{
  padding-right:30px;
}

.footer-brand .logo{
  margin-bottom:14px;
}

.footer-brand p{
  color:var(--muted);
  font-size:0.9rem;
  line-height:1.7;
  margin-top:6px;
}

.footer-col h4{
  font-size:1rem;
  font-weight:800;
  margin-bottom:16px;
  color:var(--ink);
  position:relative;
  padding-bottom:10px;
}

.footer-col h4::after{
  content:'';
  position:absolute;
  bottom:0;
  left:0;
  width:26px;
  height:3px;
  border-radius:2px;
  background:var(--coral);
}

.footer-col a{
  display:block;
  color:var(--muted);
  text-decoration:none;
  padding:5px 0;
  font-size:0.88rem;
  transition:color 0.2s, padding-left 0.2s;
}

.footer-col a:hover{
  color:var(--coral);
  padding-left:6px;
}

.footer-bottom{
  border-top:1px solid rgba(45,45,45,0.08);
  margin-top:45px;
  padding-top:22px;
  text-align:center;
  font-size:0.85rem;
  color:var(--muted);
}

.footer-bottom span{
  color:var(--coral);
  font-weight:700;
}

/* ---------- 工具类 ---------- */
.text-accent{
  color:var(--coral);
}

.text-center{
  text-align:center;
}

.mt-0{ margin-top:0; }
.mb-0{ margin-bottom:0; }

/* ---------- 响应式 ---------- */
@media (max-width: 992px){
  .hero{
    gap:36px;
  }
  .hero-image{
    flex:0 0 320px;
    height:320px;
  }
  .footer-grid{
    grid-template-columns:1fr 1fr 1fr;
  }
}

@media (max-width: 768px){
  .feature-block{
    grid-template-columns:1fr;
    gap:40px;
  }
  .stats-bar{
    grid-template-columns:repeat(2,1fr);
    gap:18px;
  }
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:32px;
  }
  .main-nav{
    display:none;
  }
  .menu-toggle{
    display:flex;
  }
  .main-nav.open{
    display:flex;
    flex-direction:column;
    position:absolute;
    top:68px;
    left:0;
    width:100%;
    background:var(--cream);
    padding:20px 24px;
    gap:14px;
    box-shadow:0 20px 40px rgba(45,45,45,0.10);
    border-bottom:1px solid rgba(45,45,45,0.05);
    list-style:none;
  }
  .main-nav.open li a{
    display:block;
    padding:10px 0;
    font-size:1rem;
  }
  .main-nav.open .nav-cta{
    text-align:center;
    margin-top:4px;
  }
  .hero{
    flex-direction:column;
    padding-top:100px;
    text-align:center;
  }
  .hero-content{
    max-width:100%;
  }
  .hero p{
    margin-left:auto;
    margin-right:auto;
  }
  .hero-buttons{
    justify-content:center;
  }
  .hero-image{
    flex:0 0 auto;
    width:240px;
    height:240px;
    margin-top:10px;
  }
  .hero-image::before{
    inset:-12px;
  }
  .hero-image::after{
    border-top-width:30px;
    border-bottom-width:30px;
    border-left-width:46px;
  }
  .hero h1{
    font-size:2.4rem;
  }
  .section{
    padding:60px 0;
  }
  .cta-banner{
    padding:48px 28px;
  }
}

@media (max-width: 480px){
  .cards-grid,
  .content-wall,
  .stats-bar{
    grid-template-columns:1fr;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:28px;
  }
  .hero-buttons{
    flex-direction:column;
    gap:12px;
    align-items:center;
  }
  .hero-buttons .btn{
    width:100%;
    justify-content:center;
  }
  .hero h1{
    font-size:1.9rem;
  }
  .section-title{
    font-size:1.6rem;
  }
  .stat-number{
    font-size:1.9rem;
  }
  .cta-banner h2{
    font-size:1.5rem;
  }
}