/* 基础重置 */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { 
  font-family:system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif; 
  overflow-x:hidden;
  background-color:#FFF9F0;
  color:#2D2A26;
  line-height:1.65;
}
::selection { background:#FFD166; color:#2D2A26; }

/* 核心布局 — 必须居中 */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; position:relative; }
.section:nth-child(even) { background:#F6EFE4; }

/* 导航 — 固定顶部 */
.site-header { 
  position:fixed; top:0; left:0; width:100%; z-index:1000; 
  background:rgba(255,249,240,0.92); 
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:3px solid #FF6B4A;
}
.header-inner { 
  display:flex; align-items:center; justify-content:space-between; 
  height:72px; max-width:1200px; margin:0 auto; padding:0 24px;
}
.logo { 
  display:flex; align-items:center; gap:10px; 
  font-weight:900; font-size:1.3rem; text-decoration:none; 
  color:#2D2A26; letter-spacing:-0.5px;
}
.logo-icon { 
  width:40px; height:40px; border-radius:12px; 
  display:flex; align-items:center; justify-content:center; 
  font-size:1.1rem;
  background:linear-gradient(135deg,#FF6B4A 60%,#FFD166);
  color:#fff;
  box-shadow:3px 3px 0 #2D2A26;
  transform:rotate(-6deg);
  transition:transform 0.3s;
}
.logo:hover .logo-icon { transform:rotate(6deg) scale(1.05); }
.main-nav { display:flex; align-items:center; gap:28px; list-style:none; }
.main-nav a { 
  text-decoration:none; font-size:0.9rem; font-weight:600; 
  transition:0.25s; color:#2D2A26;
  position:relative;
  padding-bottom:4px;
}
.main-nav a::after {
  content:'';
  position:absolute;
  bottom:-2px; left:0;
  width:0; height:3px;
  background:#FF6B4A;
  border-radius:3px;
  transition:width 0.3s ease;
}
.main-nav a:hover { color:#FF6B4A; }
.main-nav a:hover::after { width:100%; }
.nav-cta { 
  padding:10px 24px; 
  color:#fff!important; font-weight:800;
  background:linear-gradient(135deg,#FF6B4A,#FF8E6E);
  border-radius:40px;
  box-shadow:0 4px 0 #E85A3A;
  border:2px solid #2D2A26;
  transition:0.15s;
}
.nav-cta::after { display:none; }
.nav-cta:hover { 
  color:#fff!important; transform:translateY(2px); 
  box-shadow:0 2px 0 #E85A3A;
}
.menu-toggle { 
  display:none; background:none; border:2px solid #2D2A26; 
  border-radius:10px; width:44px; height:44px; cursor:pointer;
  position:relative; font-size:1.4rem; color:#2D2A26;
  align-items:center; justify-content:center;
}

/* 首页Hero */
.hero { 
  min-height:80vh; display:flex; align-items:center; 
  justify-content:space-between;
  gap:48px; flex-wrap:wrap;
  padding:110px 24px 70px;
  position:relative;
  background:
    radial-gradient(circle, rgba(255,107,74,0.14) 2px, transparent 2px) 0 0 / 28px 28px,
    radial-gradient(circle, rgba(255,209,102,0.12) 1.5px, transparent 1.5px) 14px 14px / 28px 28px,
    linear-gradient(180deg, #FFF9F0 0%, #FFF0E4 100%);
  overflow:hidden;
}
.hero::before {
  content:'✦';
  position:absolute;
  top:18%; right:6%;
  font-size:4rem;
  color:#FFD166;
  text-shadow:2px 2px 0 #2D2A26;
  animation:heroFloat 4s ease-in-out infinite;
  z-index:1;
}
.hero::after {
  content:'⬢';
  position:absolute;
  bottom:22%; right:28%;
  font-size:2.8rem;
  color:#00A8A8;
  text-shadow:2px 2px 0 #2D2A26;
  animation:heroFloat 5s ease-in-out infinite reverse;
  z-index:1;
}
@keyframes heroFloat {
  0%,100% { transform:translateY(0) rotate(0deg); }
  50% { transform:translateY(-16px) rotate(12deg); }
}
.hero-content { max-width:600px; flex:1 1 420px; position:relative; z-index:2; }
.hero-eyebrow { 
  display:inline-block; font-size:0.82rem; font-weight:800; 
  padding:6px 18px; border-radius:30px; margin-bottom:18px;
  background:#FFD166;
  color:#2D2A26;
  border:2.5px solid #2D2A26;
  box-shadow:4px 4px 0 #2D2A26;
  transform:rotate(-2deg);
  text-transform:uppercase;
  letter-spacing:1.5px;
}
.hero h1 { 
  font-size:3.5rem; line-height:1.12; margin-bottom:20px;
  font-weight:900;
  letter-spacing:-2.5px;
}
.hero h1 .highlight {
  position:relative;
  display:inline-block;
  color:#FF6B4A;
}
.hero h1 .highlight::after {
  content:'';
  position:absolute;
  bottom:4px; left:-3px;
  width:calc(100% + 6px); height:13px;
  background:rgba(255,209,102,0.55);
  border-radius:6px;
  z-index:-1;
  transform:rotate(-1.5deg);
}
.hero p { font-size:1.15rem; opacity:0.75; max-width:520px; margin-bottom:34px; font-weight:400; }
.hero-buttons { display:flex; gap:14px; flex-wrap:wrap; }
.hero-image { 
  border-radius:20px; overflow:hidden;
  border:4px solid #2D2A26;
  box-shadow:10px 10px 0 #FF6B4A;
  max-width:340px;
  flex:1 1 280px;
  transform:rotate(3deg);
  position:relative;
  background:#fff;
  transition:transform 0.3s;
}
.hero-image:hover { transform:rotate(0deg) scale(1.02); }
.hero-image img { width:100%; height:auto; display:block; }
.hero-image::before {
  content:'✨ HOT';
  position:absolute;
  top:14px; right:-14px;
  background:#FF6B4A;
  color:#fff;
  font-weight:900;
  font-size:0.72rem;
  padding:6px 16px;
  border-radius:30px;
  transform:rotate(6deg);
  box-shadow:2px 3px 0 #2D2A26;
  z-index:2;
  letter-spacing:1px;
}
.hero-image::after {
  content:'';
  position:absolute;
  bottom:14px; left:-10px;
  width:60px; height:60px;
  background:#FFD166;
  clip-path:polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
  z-index:2;
  border:2px solid #2D2A26;
}

/* 按钮 */
.btn { 
  display:inline-flex; align-items:center; gap:8px; 
  padding:14px 32px; border-radius:50px; 
  font-weight:800; cursor:pointer; border:none; 
  text-decoration:none; transition:0.18s;
  font-family:inherit;
  font-size:0.95rem;
}
.btn-primary { 
  color:#fff;
  background:linear-gradient(135deg,#FF6B4A,#FF8E6E);
  border-radius:50px;
  box-shadow:0 4px 0 #E85A3A;
  border:2px solid #2D2A26;
}
.btn-primary:hover { 
  transform:translateY(-2px); 
  box-shadow:0 6px 0 #E85A3A;
}
.btn-primary:active { transform:translateY(2px); box-shadow:0 1px 0 #E85A3A; }
.btn-outline { 
  background:transparent; 
  border:2.5px solid #00A8A8;
  color:#00A8A8;
  box-shadow:0 4px 0 rgba(0,168,168,0.3);
}
.btn-outline:hover { background:#00A8A8; color:#fff; transform:translateY(-2px); box-shadow:0 6px 0 rgba(0,168,168,0.4); }

/* 标签/标题 */
.section-label { 
  display:inline-block; font-size:0.78rem; font-weight:800; 
  letter-spacing:3px; margin-bottom:14px;
  color:#FF6B4A;
  text-transform:uppercase;
  position:relative;
  padding-left:32px;
}
.section-label::before {
  content:'✦';
  position:absolute;
  left:0;
  font-size:1.1rem;
  color:#FFD166;
  text-shadow:1px 1px 0 #2D2A26;
}
.section-title { font-size:2.5rem; margin-bottom:14px; font-weight:900; letter-spacing:-1.5px; line-height:1.2; }
.section-desc { max-width:620px; opacity:0.7; margin-bottom:40px; font-size:1.05rem; }

/* 卡片网格 */
.cards-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:28px; }
.category-card { 
  border-radius:16px; padding:30px 26px; 
  border:3px solid #2D2A26;
  background:#fff;
  transition:0.2s;
  box-shadow:7px 7px 0 #FF6B4A;
  position:relative;
}
.category-card::before {
  content:attr(data-index);
  position:absolute;
  top:-8px; right:-8px;
  width:36px; height:36px;
  border-radius:50%;
  background:#FFD166;
  border:2.5px solid #2D2A26;
  display:flex; align-items:center; justify-content:center;
  font-weight:900; font-size:0.9rem;
  transform:rotate(8deg);
  opacity:0;
  transition:opacity 0.2s;
}
.category-card:hover { 
  transform:translate(-3px,-5px); 
  box-shadow:11px 11px 0 #FF6B4A;
}
.category-card:hover::before { opacity:1; }
.card-icon { 
  width:52px; height:52px; border-radius:14px; 
  display:flex; align-items:center; justify-content:center; 
  margin-bottom:18px; font-size:1.4rem;
  background:#FFD166;
  border:2.5px solid #2D2A26;
  transform:rotate(-6deg);
  transition:transform 0.25s;
  box-shadow:3px 3px 0 rgba(0,0,0,0.15);
}
.category-card:hover .card-icon { transform:rotate(-12deg) scale(1.1); }
.card-link { font-weight:800; font-size:0.85rem; text-decoration:none; color:#FF6B4A; position:relative; }
.card-link::after {
  content:'→';
  margin-left:4px;
  transition:transform 0.2s;
  display:inline-block;
}
.card-link:hover::after { transform:translateX(4px); }

/* 特性块 */
.feature-block { display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
.feature-image { 
  border-radius:16px; overflow:hidden;
  border:3.5px solid #2D2A26;
  box-shadow:9px 9px 0 #00A8A8;
  transform:rotate(-2deg);
  transition:0.3s;
  position:relative;
}
.feature-image:hover { transform:rotate(0deg); box-shadow:6px 6px 0 #00A8A8; }
.feature-image img { width:100%; height:auto; display:block; }
.feature-text { position:relative; padding:24px 0 24px 24px; }
.feature-text::before {
  content:'❝';
  position:absolute;
  top:-8px; left:0;
  font-size:3.2rem;
  color:#FFD166;
  font-weight:900;
  line-height:1;
  text-shadow:2px 2px 0 #2D2A26;
}
.feature-list { list-style:none; margin-top:18px; }
.feature-list li { 
  padding:10px 0; display:flex; align-items:center; gap:10px;
  font-weight:600; border-bottom:2px dashed rgba(0,0,0,0.08);
}
.feature-list li::before { 
  content:'✦'; font-weight:900;
  color:#FF6B4A;
  font-size:1.2rem;
  flex-shrink:0;
}

/* 数据条 */
.stats-bar { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center; }
.stat-item { 
  padding:30px 18px; border-radius:16px; 
  border:3px solid #2D2A26;
  background:#fff;
  box-shadow:6px 6px 0 #FFD166;
  transition:0.2s;
  position:relative;
}
.stat-item:hover { transform:translate(-2px,-4px); box-shadow:9px 9px 0 #FFD166; }
.stat-item::after {
  content:'';
  position:absolute;
  top:-6px; left:14px;
  width:24px; height:24px;
  background:#FF6B4A;
  border-radius:4px;
  border:2px solid #2D2A26;
  transform:rotate(12deg);
}
.stat-number { 
  font-size:2.8rem; font-weight:900; 
  color:#FF6B4A; letter-spacing:-2px;
  line-height:1.2;
}
.stat-label { font-size:0.88rem; opacity:0.65; margin-top:8px; font-weight:700; text-transform:uppercase; letter-spacing:1px; }

/* 内容墙 */
.content-wall { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:26px; }
.content-wall-item { 
  border-radius:16px; overflow:hidden; 
  border:3px solid #2D2A26;
  background:#fff;
  transition:0.2s;
  box-shadow:6px 6px 0 #00A8A8;
  position:relative;
}
.content-wall-item:hover { 
  transform:translate(-2px,-4px); 
  box-shadow:10px 10px 0 #00A8A8;
}
.content-wall-item img { 
  width:100%; height:200px; object-fit:cover; 
  border-bottom:3px solid #2D2A26;
  transition:transform 0.3s;
  display:block;
}
.content-wall-item:hover img { transform:scale(1.04); }
.content-wall-body { padding:22px 22px 24px; }
.content-wall-body h3 { font-size:1.05rem; margin-bottom:8px; font-weight:800; }
.content-wall-body p { font-size:0.88rem; opacity:0.65; line-height:1.6; }

/* FAQ */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { 
  border:2.5px solid #2D2A26; 
  border-radius:14px; margin-bottom:12px; 
  overflow:hidden; cursor:pointer;
  background:#fff;
  box-shadow:5px 5px 0 #F0E6D6;
  transition:0.2s;
}
.faq-item:hover { box-shadow:5px 5px 0 #FFD166; transform:translate(-1px,-2px); }
.faq-item .faq-question { 
  padding:18px 22px; font-weight:800; 
  display:flex; justify-content:space-between; align-items:center;
  font-size:1.02rem;
  gap:12px;
}
.faq-item .faq-question::after {
  content:'+';
  font-size:1.6rem;
  color:#FF6B4A;
  transition:transform 0.3s;
  font-weight:900;
  line-height:1;
  flex-shrink:0;
}
.faq-item.open .faq-question::after {
  content:'−';
  transform:rotate(180deg);
}
.faq-item .faq-answer { padding:0 22px 20px; display:none; opacity:0.75; line-height:1.75; font-size:0.95rem; }
.faq-item.open .faq-answer { display:block; animation:faqFade 0.3s ease;
}
@keyframes faqFade {
  from { opacity:0; transform:translateY(-6px); }
  to { opacity:0.75; transform:translateY(0); }
}

/* CTA横幅 */
.cta-banner { 
  padding:64px 24px; text-align:center; 
  border-radius:24px; 
  color:#2D2A26;
  background:
    radial-gradient(circle, rgba(255,255,255,0.16) 2px, transparent 2px) 0 0 / 18px 18px,
    linear-gradient(135deg,#FFD166 0%,#FF8E6E 55%,#FF6B4A 100%);
  border:3.5px solid #2D2A26;
  box-shadow:12px 12px 0 #2D2A26;
  position:relative;
  max-width:900px;
  margin:0 auto;
}
.cta-banner::before {
  content:'💬';
  position:absolute;
  top:-28px; left:50%;
  transform:translateX(-50%);
  font-size:3rem;
  filter:drop-shadow(3px 3px 0 rgba(45,42,38,0.35));
  z-index:2;
}
.cta-banner h2 { color:#2D2A26; font-weight:900; margin-bottom:10px; font-size:2rem; }
.cta-banner p { margin-bottom:20px; font-weight:500; }
.cta-banner .btn-primary { 
  background:#fff; color:#2D2A26;
  box-shadow:0 5px 0 #2D2A26;
  border-color:#2D2A26;
}
.cta-banner .btn-primary:hover { 
  background:#F0F0F0; transform:translateY(-2px);
  box-shadow:0 7px 0 #2D2A26;
}

/* 页脚 */
.site-footer { 
  padding:56px 0 28px; 
  background:#F6EFE4; 
  border-top:3px solid #2D2A26;
  position:relative;
}
.site-footer::before {
  content:'';
  position:absolute;
  top:-30px; left:50%;
  transform:translateX(-50%) rotate(4deg);
  width:180px; height:60px;
  background:#FFD166;
  clip-path:polygon(50% 0%, 55% 25%, 78% 20%, 70% 40%, 95% 52%, 65% 55%, 68% 78%, 50% 65%, 32% 78%, 35% 55%, 5% 52%, 30% 40%, 22% 20%, 45% 25%);
  z-index:1;
  border:2px solid #2D2A26;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:900;
  font-size:0.75rem;
  color:#2D2A26;
}
.site-footer .container { position:relative; z-index:2; }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; }
.footer-brand p { opacity:0.7; font-size:0.92rem; max-width:260px; margin-top:8px; }
.footer-col h3 { 
  margin-bottom:14px; font-size:0.95rem; 
  font-weight:800; text-transform:uppercase; 
  letter-spacing:1.5px;
  color:#FF6B4A;
}
.footer-col a { 
  display:block; padding:5px 0; 
  color:#555; text-decoration:none; font-size:0.9rem; 
  transition:0.15s;
  position:relative;
  padding-left:14px;
}
.footer-col a::before {
  content:'›';
  position:absolute;
  left:0;
  color:#FF6B4A;
  font-weight:900;
  transition:left 0.2s;
}
.footer-col a:hover { color:#FF6B4A; }
.footer-col a:hover::before { left:4px; }
.footer-bottom { 
  border-top:2px dashed rgba(45,42,38,0.2); 
  margin-top:40px; padding-top:22px; 
  text-align:center; font-size:0.85rem; 
  opacity:0.7;
}

/* 工具类 */
.text-accent { color:#FF6B4A; font-weight:700; }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; opacity:0.7; font-size:0.98rem; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* 装饰性分隔线 */
.section-hr { 
  width:80px; height:6px; 
  background:#FF6B4A;
  border:none;
  border-radius:6px;
  margin:0 auto 8px;
  box-shadow:3px 3px 0 #2D2A26;
}

/* 链接通用 */
a { color:inherit; }
button { font-family:inherit; }

/* 焦点样式 */
a:focus-visible, button:focus-visible {
  outline:3px solid #00A8A8;
  outline-offset:2px;
  border-radius:6px;
}

/* 滚动条 */
::-webkit-scrollbar { width:10px; }
::-webkit-scrollbar-track { background:#FFF9F0; }
::-webkit-scrollbar-thumb { 
  background:#FF6B4A; 
  border-radius:10px; 
  border:2px solid #FFF9F0;
}
::-webkit-scrollbar-thumb:hover { background:#E85A3A; }

/* ⚠️ 响应式 */
@media (max-width: 768px) {
  .feature-block { grid-template-columns:1fr; gap:40px; }
  .stats-bar { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1fr 1fr; }
  .main-nav { 
    display:none; 
    position:absolute; top:72px; left:0; width:100%; 
    background:#FFF9F0; 
    padding:24px;
    flex-direction:column;
    align-items:stretch;
    gap:16px;
    border-bottom:3px solid #FF6B4A;
    box-shadow:0 16px 24px rgba(0,0,0,0.08);
  }
  .main-nav.open { display:flex; }
  .main-nav a { padding:10px 0; font-size:1rem; border-bottom:2px dashed rgba(0,0,0,0.08); }
  .main-nav a::after { display:none; }
  .nav-cta { text-align:center; margin-top:8px; }
  .menu-toggle { display:flex; }
  .hero { padding-top:100px; justify-content:center; }
  .hero-content { text-align:center; max-width:100%; }
  .hero h1 { font-size:2.6rem; }
  .hero p { margin-left:auto; margin-right:auto; }
  .hero-buttons { justify-content:center; }
  .hero-image { margin:0 auto; max-width:300px; }
  .section-title { font-size:2rem; }
  .cta-banner { padding:48px 20px; }
}
@media (max-width: 480px) {
  .cards-grid, .content-wall, .stats-bar { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; }
  .hero-buttons { flex-direction:column; align-items:stretch; }
  .btn { justify-content:center; width:100%; }
  .hero h1 { font-size:2.2rem; }
  .section { padding:56px 0; }
  .section-title { font-size:1.7rem; }
  .stat-number { font-size:2.2rem; }
}