:root{
  --primary:#b45309;
  --accent:#ca8a04;
  --bg:#fefce8;
  --text:#451a03;
  --text-soft:#7a4a21;
  --border:#b45309;
  --shadow: 6px 6px 0 var(--primary);
  --shadow-sm: 3px 3px 0 rgba(180,83,9,0.3);
}
*{border-radius:0 !important;}
html{scroll-behavior:smooth}
body{
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-image: radial-gradient(#ca8a04 0.6px, transparent 0.6px);
  background-size: 26px 26px;
}
/* 标题手写/圆体感 */
h1,h2,h3,.font-display{
  font-family: 'Segoe Script', 'Bradley Hand', 'Comic Sans MS', 'Dancing Script', cursive;
  font-weight: 800;
  letter-spacing: 0.03em;
}
/* 布局:左侧固定栏目侧栏 + 右侧瀑布流 */
.app-layout{
  display: flex;
  min-height: 100vh;
}
.side-nav{
  width: 260px;
  flex-shrink: 0;
  position: sticky;
  top:0;
  height:100vh;
  background: rgba(254,252,232,0.9);
  backdrop-filter: blur(2px);
  border-right: 3px solid var(--primary);
  padding: 1.5rem 0.8rem;
  display: flex;
  flex-direction: column;
  box-shadow: 4px 0 0 var(--accent);
  z-index: 999;
}
.main-content{
  flex:1;
  min-width:0;
  padding: 1.2rem 1.8rem 3rem;
}
/* 侧栏导航 */
.brand-side{
  font-size: 2rem;
  font-weight: 900;
  color: var(--primary);
  text-decoration: none;
  padding: 0.2rem 0.5rem;
  border: 3px solid var(--primary);
  box-shadow: 4px 4px 0 var(--accent);
  display: inline-block;
  margin-bottom: 2rem;
  background: #fff;
  letter-spacing: 2px;
}
.side-nav a.nav-link-custom{
  display: block;
  padding: 0.65rem 1rem;
  margin: 0.4rem 0;
  border: 2px solid var(--primary);
  background: #fff;
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.15s;
  box-shadow: 3px 3px 0 rgba(180,83,9,0.2);
  font-size: 1.1rem;
}
.side-nav a.nav-link-custom:hover{
  background: var(--primary);
  color: #fefce8;
  transform: translate(-1px,-1px);
  box-shadow: 5px 5px 0 var(--accent);
}
/* 顶栏(移动端显示) */
.mobile-topbar{
  display: none;
  background: var(--bg);
  border-bottom: 3px solid var(--primary);
  padding: 0.8rem 1rem;
}
.mobile-topbar .brand-inline{
  font-size: 1.8rem;
  font-weight: bold;
  color: var(--primary);
  border:2px solid var(--primary);
  padding: 0.1rem 0.7rem;
  box-shadow: 2px 2px 0 var(--accent);
  text-decoration: none;
}
@media (max-width: 992px) {
  .app-layout{flex-direction: column;}
  .side-nav{display:none;}
  .mobile-topbar{display:flex; justify-content: space-between; align-items:center;}
  .main-content{padding:1rem;}
}
/* hero */
.hero{
  position: relative;
  padding: 4rem 2rem 5rem;
  border: 4px solid var(--primary);
  box-shadow: var(--shadow);
  background: rgba(254,252,232,0.82);
  margin-bottom: 3rem;
  overflow:hidden;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image: 
    linear-gradient(rgba(202,138,4,0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(202,138,4,0.1) 1px, transparent 1px);
  background-size: 30px 30px;
  transform: translateZ(0);
  will-change: transform;
  pointer-events:none;
  z-index:0;
}
.hero-content{
  position: relative;
  z-index: 2;
}
.hero h1{
  font-size: calc(2.6rem + 1vw);
  font-weight: 900;
  color: var(--primary);
  text-shadow: 4px 4px 0 #fde68a;
  border-left: 10px solid var(--accent);
  padding-left: 1.5rem;
}
.hero .subtitle{
  font-size: 1.4rem;
  color: var(--text-soft);
  max-width: 650px;
  font-weight: 400;
}
.hero-btn{
  display:inline-block;
  padding: 0.7rem 2rem;
  border: 3px solid var(--primary);
  background: #fff;
  color: var(--primary);
  font-weight:700;
  text-decoration:none;
  box-shadow: 4px 4px 0 var(--primary);
  margin-right: 1rem;
  transition: 0.2s;
  position:relative;
  overflow:hidden;
}
.hero-btn:hover{
  background: var(--primary);
  color:#fff;
  transform: translate(-2px,-2px);
  box-shadow: 6px 6px 0 var(--accent);
}
.hero-btn::after{
  content:'';
  position:absolute;
  top:0;
  left:-150%;
  width:100%;
  height:100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,0.5), transparent);
  transition: left 0.4s;
}
.hero-btn:hover::after{
  left:150%;
}
/* 通用区块 */
.section-block{
  margin-bottom: 4rem;
  background: rgba(255,255,240,0.7);
  padding: 1.8rem 1.8rem;
  border: 3px solid var(--primary);
  box-shadow: var(--shadow);
}
.section-title{
  font-size: 2rem;
  border-bottom: 4px solid var(--accent);
  padding-bottom: 0.5rem;
  margin-bottom: 2rem;
  display: inline-block;
  font-weight:700;
}
/* 对比表格 */
.table-compare{
  width:100%;
  border-collapse: collapse;
  background: #fff;
  border: 3px solid var(--primary);
}
.table-compare th,.table-compare td{
  border: 2px solid var(--primary);
  padding: 1rem;
  font-size: 1.1rem;
}
.table-compare th{
  background: var(--primary);
  color: #fefce8;
  font-size:1.2rem;
}
.table-compare .fa-check{color: #166534; font-size:1.3rem;}
.table-compare .fa-xmark{color: #b91c1c;}
/* 特色图标列表 */
.feature-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px,1fr));
  gap: 2rem;
}
.feature-item{
  border:3px solid var(--primary);
  background: #fff;
  padding: 1.8rem 1.2rem;
  box-shadow: 4px 4px 0 var(--accent);
  transition: 0.2s;
}
.feature-item:hover{
  transform: translate(-3px,-3px);
  box-shadow: 7px 7px 0 var(--primary);
}
.feature-item i{
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: 1rem;
}
/* 手风琴 */
.accordion-custom .accordion-item{
  border:2px solid var(--primary);
  margin-bottom: 0.8rem;
  background: #fff;
}
.accordion-custom .accordion-button{
  background: #fefce8;
  color: var(--text);
  font-weight: 600;
  border: none;
  box-shadow: none;
  padding: 1rem 1.5rem;
  font-size: 1.15rem;
}
.accordion-custom .accordion-button:not(.collapsed){
  background: #fdf0d3;
  color: var(--primary);
  border-bottom: 2px solid var(--primary);
}
.accordion-custom .accordion-body{
  background: #fffef5;
  padding: 1.2rem 1.5rem;
  border-top: 2px dashed var(--accent);
}
/* CTA */
.cta-box{
  text-align:center;
  background: var(--primary);
  color: #fefce8;
  padding: 3rem 1.5rem;
  border: 4px solid var(--accent);
  box-shadow: 8px 8px 0 #ca8a04;
}
.cta-box h2{
  font-size: 2.5rem;
  color: #fff;
}
.cta-box .btn-cta{
  background: #fefce8;
  border:3px solid #451a03;
  color: var(--text);
  padding: 0.8rem 2.5rem;
  font-weight: 700;
  box-shadow: 5px 5px 0 #451a03;
  text-decoration: none;
}
.cta-box .btn-cta:hover{
  background: var(--accent);
  color:#fff;
}
/* 友链 */
.friend-links{
  border-top: 3px dashed var(--primary);
  padding-top: 1.5rem;
  margin-top: 3rem;
}
.friend-links h5{
  font-weight:600;
}
/* 页脚 */
footer{
  border-top: 4px solid var(--primary);
  margin-top: 3rem;
  padding: 1.5rem 0;
  text-align:center;
  color: var(--text-soft);
}
/* 动效:滚动淡入 */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-up.visible{
  opacity:1;
  transform: translateY(0);
}
/* 瀑布流卡片区域 (非通用, 但用于内部列表) */
.waterfall-grid{
  column-count: 3;
  column-gap: 1.5rem;
}
.waterfall-item{
  break-inside: avoid;
  margin-bottom: 1.5rem;
  border: 3px solid var(--primary);
  background: #fff;
  box-shadow: 4px 4px 0 var(--accent);
  padding: 0.8rem;
}
@media (max-width: 768px){
  .waterfall-grid{column-count:2;}
}
@media (max-width: 480px){
  .waterfall-grid{column-count:1;}
}

/* --- 子页面追加 --- */
/* 关于我们页专属样式 */
        .about-hero {
            background: linear-gradient(135deg, var(--bg) 0%, #fef3c7 100%);
            padding: 60px 0;
            border-bottom: 3px solid var(--border);
        }
.about-section {
            padding: 50px 0;
        }
.about-section:nth-child(even) {
            background: rgba(180, 83, 9, 0.03);
        }
.about-card {
            background: var(--bg);
            border: 2px solid var(--border);
            border-radius: 12px;
            padding: 28px;
            height: 100%;
            transition: transform 0.3s, box-shadow 0.3s;
            box-shadow: var(--shadow-sm);
        }
.about-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }
.about-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 16px;
            display: inline-block;
        }
.about-timeline {
            position: relative;
            padding-left: 30px;
            border-left: 3px solid var(--primary);
        }
.about-timeline-item {
            position: relative;
            margin-bottom: 30px;
            padding: 20px;
            background: rgba(180, 83, 9, 0.05);
            border-radius: 10px;
        }
.about-timeline-item::before {
            content: '';
            position: absolute;
            left: -36px;
            top: 25px;
            width: 12px;
            height: 12px;
            background: var(--primary);
            border-radius: 50%;
            border: 2px solid var(--bg);
        }
.about-quote {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            color: #fff;
            padding: 40px;
            border-radius: 16px;
            box-shadow: var(--shadow);
            margin: 40px 0;
        }
.about-stats {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 20px;
            text-align: center;
            margin: 40px 0;
        }
.stat-item {
            padding: 20px 30px;
            background: var(--bg);
            border: 2px solid var(--border);
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            min-width: 150px;
        }
.stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
        }
.stat-label {
            color: var(--text-soft);
            font-size: 0.9rem;
            margin-top: 4px;
        }
.nav-link-custom.active {
            background: var(--primary);
            color: #fff !important;
        }

/* --- 子页面追加 --- */
/* 本页专属微调（不影响全局样式） */
    .disclaimer-section { background: rgba(254, 252, 232, 0.65); border: 1px solid rgba(180, 83, 9, 0.25); border-radius: 12px; padding: 2rem 2rem; margin-bottom: 2rem; transition: box-shadow 0.3s ease, transform 0.3s ease; }
.disclaimer-section:hover { box-shadow: 0 4px 20px rgba(180, 83, 9, 0.12); transform: translateY(-2px); }
.disclaimer-section h2 { color: var(--primary); font-weight: 800; font-size: 1.6rem; margin-bottom: 1rem; border-left: 4px solid var(--accent); padding-left: 1rem; }
.disclaimer-section h3 { color: var(--text); font-weight: 700; font-size: 1.25rem; margin-top: 1.5rem; margin-bottom: 0.75rem; }
.disclaimer-section p, .disclaimer-section li { color: var(--text-soft); line-height: 1.9; font-size: 0.98rem; }
.disclaimer-section ul, .disclaimer-section ol { padding-left: 1.5rem; }
.disclaimer-section li { margin-bottom: 0.5rem; }
.disclaimer-section .highlight-box { background: rgba(202, 138, 4, 0.08); border: 1px dashed var(--accent); border-radius: 8px; padding: 1rem 1.25rem; margin: 1.25rem 0; }
.disclaimer-section .highlight-box p { margin-bottom: 0.25rem; }
.last-updated { display: inline-block; background: var(--primary); color: var(--bg); font-size: 0.85rem; font-weight: 600; padding: 0.35rem 1rem; border-radius: 50px; margin-bottom: 2rem; }
.page-hero { background: linear-gradient(135deg, rgba(180,83,9,0.08) 0%, rgba(202,138,4,0.05) 100%); border: 1px solid rgba(180,83,9,0.15); border-radius: 16px; padding: 3rem 2rem; margin-bottom: 3rem; position: relative; overflow: hidden; }
.page-hero::before { content: "©"; position: absolute; right: 2rem; top: 50%; transform: translateY(-50%); font-size: 10rem; font-weight: 900; color: rgba(180,83,9,0.06); pointer-events: none; }
.disclaimer-section { padding: 1.5rem 1.25rem; }
.page-hero { padding: 2rem 1.25rem; }

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.accordion-header { background:transparent !important; }