/* ===== 九妖 · 东方玄幻漫画集 完整样式表 ===== */
:root{
  --bg-light:#F5F7FA;
  --bg-dark:#0B1929;
  --card-light:#FFFFFF;
  --card-dark:#152A44;
  --text-primary-light:#1F2937;
  --text-secondary-light:#334155;
  --text-heading-light:#111827;
  --text-link-light:#1D4ED8;
  --border-light:#D1D9E6;
  --bg-footer-light:#E8EDF5;
  --text-primary-dark:#E2E8F0;
  --text-heading-dark:#F8FAFC;
  --text-secondary-dark:#CBD5E1;
  --text-link-dark:#93C5FD;
  --border-dark:#2D3F5E;
  --bg-footer-dark:#0F1C2E;
  --accent:#9B4DCA;
  --accent-light:#B06EDC;
  --primary:#1E3A5F;
  --primary-light:#2E5A88;
  --shadow-sm:0 2px 8px rgba(0,0,0,.06);
  --shadow-md:0 6px 20px rgba(0,0,0,.08);
  --shadow-lg:0 12px 32px rgba(0,0,0,.12);
  --radius-sm:8px;
  --radius-md:16px;
  --radius-lg:24px;
  --transition-fast:.2s ease;
  --transition-normal:.35s ease;
  --font-display:'Noto Serif SC','Songti SC','SimSun',serif;
}

*{
  margin:0;
  padding:0;
  box-sizing:border-box;
  font-family:system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue','Noto Sans',sans-serif;
}

html{
  scroll-behavior:smooth;
  scroll-padding-top:80px;
}

body{
  background:var(--bg-light);
  color:var(--text-primary-light);
  line-height:1.8;
  transition:background .3s ease,color .3s ease;
  overflow-x:hidden;
}

body.dark-mode{
  background:var(--bg-dark);
  color:var(--text-primary-dark);
}

h1,h2,h3,h4,h5,h6{
  color:var(--text-heading-light);
  font-weight:700;
  line-height:1.35;
  letter-spacing:.01em;
}

body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h3,
body.dark-mode h4,
body.dark-mode h5,
body.dark-mode h6{
  color:var(--text-heading-dark);
}

a{
  color:var(--text-link-light);
  text-decoration:none;
  transition:color .25s ease;
}

body.dark-mode a{color:var(--text-link-dark);}

a:hover{
  color:var(--accent);
  text-decoration:underline;
}

img,svg,video{
  max-width:100%;
  height:auto;
  display:block;
}

button{
  font-family:inherit;
  cursor:pointer;
  border:none;
  background:none;
  transition:all var(--transition-fast);
}

input,select,textarea{
  font-family:inherit;
  font-size:1rem;
}

.container{
  max-width:1280px;
  margin:0 auto;
  padding:0 clamp(16px,4vw,32px);
  width:100%;
}

/* ===== 滚动条美化 ===== */
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:transparent;}
::-webkit-scrollbar-thumb{background:var(--primary);border-radius:20px;}
::-webkit-scrollbar-thumb:hover{background:var(--primary-light);}
body.dark-mode ::-webkit-scrollbar-thumb{background:var(--primary-light);}

::selection{
  background:var(--accent);
  color:#fff;
}

/* ===== 导航栏 ===== */
nav{
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(16px) saturate(180%);
  -webkit-backdrop-filter:blur(16px) saturate(180%);
  position:sticky;
  top:0;
  z-index:1000;
  border-bottom:1px solid rgba(209,217,230,.6);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
  box-shadow:0 2px 20px rgba(30,58,95,.04);
}

body.dark-mode nav{
  background:rgba(10,25,45,.88);
  border-bottom:1px solid rgba(45,63,94,.5);
  box-shadow:0 2px 20px rgba(0,0,0,.3);
}

.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:14px 0;
  position:relative;
}

.logo{
  font-size:clamp(22px,3vw,30px);
  font-weight:800;
  color:var(--primary);
  letter-spacing:2px;
  font-family:var(--font-display);
  background:linear-gradient(135deg,var(--primary),var(--accent));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  white-space:nowrap;
  transition:opacity .3s ease;
}

.logo:hover{opacity:.85;}

body.dark-mode .logo{
  background:linear-gradient(135deg,#B7D9F0,#C4B5FD);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}

.nav-links{
  display:flex;
  gap:clamp(16px,2.5vw,32px);
  align-items:center;
}

.nav-links a{
  font-weight:500;
  font-size:1rem;
  color:var(--text-primary-light);
  position:relative;
  padding:4px 0;
}

body.dark-mode .nav-links a{color:var(--text-primary-dark);}

.nav-links a::after{
  content:'';
  position:absolute;
  bottom:-2px;
  left:0;
  width:0;
  height:2px;
  background:var(--accent);
  transition:width .3s ease;
  border-radius:2px;
}

.nav-links a:hover{
  color:var(--accent);
  text-decoration:none;
}

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

.menu-btn{
  display:none;
  font-size:28px;
  color:var(--text-primary-light);
  background:rgba(255,255,255,.6);
  border:1px solid var(--border-light);
  border-radius:50%;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  transition:all .3s ease;
  line-height:1;
}

body.dark-mode .menu-btn{
  color:var(--text-primary-dark);
  background:rgba(255,255,255,.05);
  border-color:var(--border-dark);
}

.menu-btn:hover{
  background:var(--accent);
  color:#fff;
  border-color:var(--accent);
  transform:rotate(90deg);
}

/* ===== 搜索框 ===== */
.search-box{
  display:flex;
  align-items:center;
  background:var(--card-light);
  border-radius:40px;
  padding:4px 4px 4px 16px;
  border:1px solid var(--border-light);
  transition:all .3s ease;
  box-shadow:var(--shadow-sm);
  flex-shrink:0;
}

body.dark-mode .search-box{
  background:var(--card-dark);
  border-color:var(--border-dark);
  box-shadow:0 2px 12px rgba(0,0,0,.2);
}

.search-box:focus-within{
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(155,77,202,.15);
}

.search-box input{
  border:none;
  outline:none;
  background:transparent;
  padding:8px 8px;
  width:clamp(100px,14vw,180px);
  color:var(--text-primary-light);
  font-size:.95rem;
}

body.dark-mode .search-box input{color:var(--text-primary-dark);}

.search-box input::placeholder{color:#94A3B8;}

.search-box button{
  background:var(--primary);
  border:none;
  color:#fff;
  padding:8px 16px;
  border-radius:30px;
  font-weight:600;
  font-size:.9rem;
  transition:all .3s ease;
  white-space:nowrap;
}

body.dark-mode .search-box button{background:var(--primary-light);}

.search-box button:hover{
  background:var(--accent);
  transform:scale(1.03);
}

/* ===== Banner Hero ===== */
.banner{
  background:linear-gradient(135deg,#1e2a5a 0%,#2d4b7a 45%,#4a3f8f 100%);
  border-radius:var(--radius-lg);
  margin:clamp(20px,4vw,36px) 0;
  padding:clamp(30px,6vw,60px) clamp(24px,5vw,48px);
  color:#fff;
  position:relative;
  overflow:hidden;
  box-shadow:0 16px 40px rgba(30,42,90,.3);
  isolation:isolate;
}

.banner::before{
  content:'';
  position:absolute;
  top:-60%;
  right:-20%;
  width:60%;
  height:180%;
  background:radial-gradient(circle at center,rgba(155,77,202,.35),transparent 70%);
  animation:floatGlow 8s ease-in-out infinite alternate;
  z-index:-1;
}

.banner::after{
  content:'';
  position:absolute;
  bottom:-40%;
  left:-10%;
  width:40%;
  height:120%;
  background:radial-gradient(circle at center,rgba(45,75,122,.5),transparent 70%);
  animation:floatGlow 10s ease-in-out infinite alternate-reverse;
  z-index:-1;
}

@keyframes floatGlow{
  0%{transform:translate(0,0) scale(1);opacity:.8;}
  100%{transform:translate(30px,-20px) scale(1.1);opacity:1;}
}

.banner h2{
  font-size:clamp(1.8rem,4.5vw,2.8rem);
  color:#fff;
  margin-bottom:16px;
  text-shadow:0 3px 12px rgba(0,0,0,.4);
  font-family:var(--font-display);
  position:relative;
  z-index:1;
}

.banner p{
  color:rgba(240,246,255,.92);
  font-size:clamp(1.05rem,2vw,1.3rem);
  max-width:680px;
  text-shadow:0 2px 6px rgba(0,0,0,.35);
  line-height:1.8;
  position:relative;
  z-index:1;
}

.banner .btn-group{
  margin-top:24px;
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  position:relative;
  z-index:1;
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 28px;
  border-radius:40px;
  background:#fff;
  color:var(--primary);
  font-weight:700;
  border:none;
  cursor:pointer;
  font-size:1rem;
  box-shadow:0 4px 14px rgba(0,0,0,.15);
  transition:all .3s ease;
  letter-spacing:.02em;
}

.btn:hover{
  transform:translateY(-2px) scale(1.02);
  box-shadow:0 8px 24px rgba(0,0,0,.2);
  background:var(--accent);
  color:#fff;
}

.btn-outline{
  background:transparent;
  border:2px solid rgba(255,255,255,.85);
  color:#fff;
  box-shadow:none;
  backdrop-filter:blur(4px);
}

.btn-outline:hover{
  background:rgba(255,255,255,.15);
  border-color:#fff;
  color:#fff;
}

/* ===== 区块标题 ===== */
.section-title{
  font-size:clamp(1.8rem,3.5vw,2.4rem);
  margin:clamp(36px,6vw,56px) 0 24px;
  position:relative;
  padding-bottom:14px;
  font-family:var(--font-display);
}

.section-title::after{
  content:'';
  display:block;
  width:80px;
  height:4px;
  background:linear-gradient(90deg,var(--accent),var(--primary));
  border-radius:4px;
  margin-top:12px;
  transition:width .5s ease;
}

.section-title:hover::after{width:120px;}

/* ===== 网格布局 ===== */
.grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:clamp(20px,3vw,28px);
  margin:24px 0;
}

/* ===== 卡片 ===== */
.card{
  background:var(--card-light);
  border-radius:var(--radius-md);
  padding:clamp(20px,3vw,28px);
  box-shadow:var(--shadow-sm);
  border:1px solid var(--border-light);
  transition:all .4s cubic-bezier(.4,0,.2,1);
  position:relative;
  overflow:hidden;
}

.card::before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:3px;
  background:linear-gradient(90deg,var(--accent),var(--primary));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .4s ease;
}

.card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-md);
  border-color:rgba(155,77,202,.3);
}

.card:hover::before{transform:scaleX(1);}

body.dark-mode .card{
  background:var(--card-dark);
  border-color:var(--border-dark);
  box-shadow:0 4px 16px rgba(0,0,0,.2);
}

body.dark-mode .card:hover{
  border-color:rgba(155,77,202,.4);
  box-shadow:0 10px 30px rgba(0,0,0,.3);
}

.card h3{
  font-size:1.35rem;
  margin-bottom:10px;
  font-family:var(--font-display);
}

.card p{
  color:var(--text-secondary-light);
  font-size:.98rem;
  margin-bottom:8px;
}

body.dark-mode .card p{color:var(--text-secondary-dark);}

.card .badge{
  margin-top:12px;
}

/* ===== 标签徽章 ===== */
.badge{
  display:inline-block;
  background:#F1F5F9;
  padding:6px 14px;
  border-radius:30px;
  font-size:.8rem;
  font-weight:600;
  margin:4px 6px 0 0;
  color:var(--text-secondary-light);
  border:1px solid transparent;
  transition:all .3s ease;
  letter-spacing:.02em;
}

.badge:hover{
  background:var(--accent);
  color:#fff;
  border-color:var(--accent);
  transform:translateY(-2px);
}

body.dark-mode .badge{
  background:rgba(45,63,94,.6);
  color:var(--text-secondary-dark);
  border-color:rgba(255,255,255,.05);
}

body.dark-mode .badge:hover{
  background:var(--accent);
  color:#fff;
  border-color:var(--accent);
}

/* ===== FAQ ===== */
.faq-item{
  border-bottom:1px solid var(--border-light);
  padding:18px 0;
  transition:background .3s ease,padding .3s ease;
  border-radius:8px;
}

body.dark-mode .faq-item{border-color:var(--border-dark);}

.faq-item:hover{
  background:rgba(155,77,202,.03);
  padding-left:12px;
  padding-right:12px;
}

body.dark-mode .faq-item:hover{
  background:rgba(155,77,202,.08);
}

.faq-q{
  font-weight:600;
  font-size:clamp(1rem,1.8vw,1.15rem);
  cursor:pointer;
  display:flex;
  justify-content:space-between;
  align-items:center;
  color:var(--text-heading-light);
  transition:color .3s ease;
  user-select:none;
  gap:16px;
}

body.dark-mode .faq-q{color:var(--text-heading-dark);}

.faq-q:hover{color:var(--accent);}

.faq-a{
  margin-top:12px;
  color:var(--text-primary-light);
  padding:12px 16px;
  background:rgba(155,77,202,.04);
  border-radius:8px;
  border-left:3px solid var(--accent);
  line-height:1.8;
  animation:fadeSlideIn .4s ease;
  font-size:.95rem;
}

body.dark-mode .faq-a{
  color:var(--text-primary-dark);
  background:rgba(155,77,202,.08);
}

@keyframes fadeSlideIn{
  from{opacity:0;transform:translateY(-8px);}
  to{opacity:1;transform:translateY(0);}
}

.plus{
  font-size:1.8rem;
  line-height:1;
  font-weight:300;
  color:var(--accent);
  transition:transform .3s ease;
  flex-shrink:0;
}

/* ===== 页脚 ===== */
footer{
  background:var(--bg-footer-light);
  margin-top:clamp(60px,10vw,90px);
  padding:clamp(36px,6vw,56px) 0 24px;
  border-top:1px solid var(--border-light);
  transition:background .3s ease,border-color .3s ease;
}

body.dark-mode footer{
  background:var(--bg-footer-dark);
  border-top:1px solid var(--border-dark);
}

.footer-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:clamp(20px,4vw,36px);
}

.footer-col h4{
  font-size:1.15rem;
  margin-bottom:16px;
  font-family:var(--font-display);
  position:relative;
  padding-bottom:8px;
}

.footer-col h4::after{
  content:'';
  position:absolute;
  bottom:0;
  left:0;
  width:30px;
  height:2px;
  background:var(--accent);
  border-radius:2px;
}

.footer-col p,
.footer-col a{
  color:var(--text-secondary-light);
  font-size:.95rem;
  line-height:2;
  transition:color .3s ease;
}

body.dark-mode .footer-col p,
body.dark-mode .footer-col a{color:var(--text-secondary-dark);}

.footer-col a:hover{
  color:var(--accent);
  text-decoration:none;
}

.footer-bottom{
  text-align:center;
  margin-top:clamp(24px,5vw,40px);
  border-top:1px solid var(--border-light);
  padding-top:20px;
  font-size:.88rem;
  color:var(--text-secondary-light);
  line-height:2;
}

body.dark-mode .footer-bottom{
  color:var(--text-secondary-dark);
  border-color:var(--border-dark);
}

.footer-bottom p{
  margin-bottom:4px;
}

/* ===== 表格 ===== */
table{
  width:100%;
  border-collapse:collapse;
  margin:20px 0;
  border-radius:8px;
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}

th{
  background:var(--primary);
  color:#fff;
  padding:14px 16px;
  text-align:left;
  font-weight:600;
  font-size:.95rem;
}

body.dark-mode th{background:var(--primary-light);}

td{
  padding:12px 16px;
  border-bottom:1px solid var(--border-light);
  color:var(--text-primary-light);
  font-size:.95rem;
}

body.dark-mode td{
  border-color:var(--border-dark);
  color:var(--text-primary-dark);
}

tr:nth-child(even){
  background:rgba(30,58,95,.03);
}

body.dark-mode tr:nth-child(even){
  background:rgba(255,255,255,.02);
}

tr:hover td{
  background:rgba(155,77,202,.05);
}

/* ===== HowTo 步骤 ===== */
.howto-step{
  background:var(--card-light);
  padding:clamp(20px,3vw,28px);
  border-radius:var(--radius-md);
  margin:16px 0;
  border-left:6px solid var(--accent);
  box-shadow:var(--shadow-sm);
  transition:all .3s ease;
  position:relative;
}

.howto-step:hover{
  box-shadow:var(--shadow-md);
  transform:translateX(4px);
}

body.dark-mode .howto-step{
  background:var(--card-dark);
  box-shadow:0 4px 16px rgba(0,0,0,.2);
}

.howto-step h4{
  margin-bottom:12px;
  font-family:var(--font-display);
}

.howto-step p{
  margin-bottom:8px;
  color:var(--text-primary-light);
  line-height:1.9;
}

body.dark-mode .howto-step p{color:var(--text-primary-dark);}

.howto-step strong{
  color:var(--accent);
}

/* ===== 文章卡片特殊样式 ===== */
article.card{
  display:flex;
  flex-direction:column;
  gap:6px;
}

article.card p{
  font-size:.9rem;
}

article.card a{
  margin-top:auto;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding-top:12px;
}

article.card a::after{
  content:'→';
  transition:transform .3s ease;
}

article.card a:hover::after{
  transform:translateX(4px);
}

/* ===== 联系区块 ===== */
#contact .card{
  max-width:720px;
}

#contact .card p{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:6px 0;
  border-bottom:1px dashed var(--border-light);
}

body.dark-mode #contact .card p{
  border-bottom-color:var(--border-dark);
}

#contact .card p:last-child{
  border-bottom:none;
}

#contact .card strong{
  min-width:100px;
  color:var(--accent);
  font-weight:600;
}

/* ===== 返回顶部按钮 ===== */
.back-top{
  position:fixed;
  bottom:40px;
  right:40px;
  background:var(--primary);
  color:#fff;
  border:none;
  border-radius:50%;
  width:48px;
  height:48px;
  font-size:22px;
  cursor:pointer;
  display:none;
  z-index:999;
  box-shadow:0 6px 20px rgba(30,58,95,.35);
  transition:all .3s ease;
  align-items:center;
  justify-content:center;
  line-height:1;
}

.back-top:hover{
  background:var(--accent);
  transform:translateY(-4px) scale(1.05);
  box-shadow:0 10px 30px rgba(155,77,202,.35);
}

body.dark-mode .back-top{
  background:var(--primary-light);
  box-shadow:0 6px 20px rgba(0,0,0,.4);
}

/* ===== 暗黑模式切换按钮（由JS动态添加） ===== */
button[style*="position: fixed"]{
  box-shadow:0 6px 20px rgba(30,58,95,.3);
  font-size:20px;
  backdrop-filter:blur(4px);
}

button[style*="position: fixed"]:hover{
  transform:rotate(20deg) scale(1.1);
  box-shadow:0 10px 30px rgba(155,77,202,.4);
}

/* ===== 滚动动画（通过IntersectionObserver可添加类名） ===== */
@keyframes fadeInUp{
  from{
    opacity:0;
    transform:translateY(30px);
  }
  to{
    opacity:1;
    transform:translateY(0);
  }
}

@keyframes fadeInLeft{
  from{
    opacity:0;
    transform:translateX(-30px);
  }
  to{
    opacity:1;
    transform:translateX(0);
  }
}

@keyframes fadeInRight{
  from{
    opacity:0;
    transform:translateX(30px);
  }
  to{
    opacity:1;
    transform:translateX(0);
  }
}

@keyframes zoomIn{
  from{
    opacity:0;
    transform:scale(.92);
  }
  to{
    opacity:1;
    transform:scale(1);
  }
}

@keyframes floatY{
  0%,100%{transform:translateY(0);}
  50%{transform:translateY(-8px);}
}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .nav-links{
    gap:20px;
  }
  
  .search-box input{
    width:120px;
  }
}

@media (max-width:900px){
  .menu-btn{
    display:flex;
  }
  
  .nav-links{
    display:none;
    flex-direction:column;
    background:var(--card-light);
    position:absolute;
    top:calc(100% + 8px);
    right:16px;
    border-radius:var(--radius-md);
    padding:20px;
    width:260px;
    box-shadow:var(--shadow-lg);
    gap:8px;
    border:1px solid var(--border-light);
    backdrop-filter:blur(16px);
    background:rgba(255,255,255,.95);
  }
  
  body.dark-mode .nav-links{
    background:rgba(21,42,68,.95);
    border-color:var(--border-dark);
    box-shadow:0 16px 40px rgba(0,0,0,.4);
  }
  
  .nav-links.open{
    display:flex;
    animation:fadeSlideIn .3s ease;
  }
  
  .nav-links a{
    padding:12px 16px;
    border-radius:8px;
    font-size:1rem;
    transition:all .3s ease;
  }
  
  .nav-links a:hover{
    background:rgba(155,77,202,.08);
    color:var(--accent);
  }
  
  .nav-links a::after{
    display:none;
  }
  
  .search-box input{
    width:110px;
  }
  
  .banner{
    padding:32px 24px;
  }
  
  .banner h2{
    font-size:1.8rem;
  }
}

@media (max-width:640px){
  .container{
    padding:0 16px;
  }
  
  .nav-wrap{
    gap:12px;
  }
  
  .search-box{
    order:3;
    width:100%;
    margin-top:8px;
  }
  
  .search-box input{
    flex:1;
    width:auto;
  }
  
  .nav-wrap{
    flex-wrap:wrap;
  }
  
  .logo{
    font-size:24px;
  }
  
  .menu-btn{
    margin-left:auto;
  }
  
  .banner{
    padding:28px 20px;
    border-radius:16px;
  }
  
  .banner h2{
    font-size:1.5rem;
  }
  
  .banner p{
    font-size:1rem;
  }
  
  .btn-group{
    flex-direction:column;
    width:100%;
  }
  
  .btn{
    width:100%;
    justify-content:center;
  }
  
  .grid{
    grid-template-columns:1fr;
    gap:16px;
  }
  
  .section-title{
    font-size:1.6rem;
  }
  
  .footer-grid{
    grid-template-columns:1fr;
    gap:28px;
  }
  
  .footer-bottom{
    font-size:.8rem;
  }
  
  .back-top{
    bottom:24px;
    right:24px;
    width:44px;
    height:44px;
    font-size:20px;
  }
  
  button[style*="position: fixed"]{
    bottom:80px !important;
    right:24px !important;
  }
  
  .card{
    padding:20px;
  }
  
  .faq-q{
    font-size:1rem;
  }
}

@media (max-width:400px){
  .logo{
    font-size:20px;
    letter-spacing:1px;
  }
  
  .search-box button{
    padding:6px 12px;
    font-size:.85rem;
  }
  
  .banner h2{
    font-size:1.3rem;
  }
  
  .banner p{
    font-size:.92rem;
  }
  
  .section-title{
    font-size:1.4rem;
  }
}

/* ===== 暗色模式下的额外优化 ===== */
body.dark-mode .banner{
  box-shadow:0 16px 40px rgba(0,0,0,.5);
}

body.dark-mode .banner h2{
  color:#fff;
}

body.dark-mode .banner p{
  color:#E7EFF8;
}

body.dark-mode .btn{
  background:#fff;
  color:var(--primary);
}

body.dark-mode .btn:hover{
  background:var(--accent);
  color:#fff;
}

body.dark-mode .btn-outline{
  border-color:rgba(255,255,255,.8);
  color:#fff;
  background:transparent;
}

body.dark-mode .btn-outline:hover{
  background:rgba(255,255,255,.15);
  border-color:#fff;
}

/* ===== 打印样式 ===== */
@media print{
  nav,
  .menu-btn,
  .search-box,
  .back-top,
  button[style*="position: fixed"]{
    display:none !important;
  }
  
  body{
    background:#fff;
    color:#000;
  }
  
  .banner{
    background:#f0f0f0 !important;
    color:#000 !important;
    box-shadow:none;
  }
  
  .banner h2,.banner p{
    color:#000 !important;
    text-shadow:none;
  }
  
  .card{
    box-shadow:none;
    border:1px solid #ddd;
    break-inside:avoid;
  }
}

/* ===== 辅助类 ===== */
.text-center{text-align:center;}
.mt-1{margin-top:.5rem;}
.mt-2{margin-top:1rem;}
.mt-3{margin-top:1.5rem;}
.mt-4{margin-top:2rem;}
.mb-1{margin-bottom:.5rem;}
.mb-2{margin-bottom:1rem;}
.mb-3{margin-bottom:1.5rem;}
.mb-4{margin-bottom:2rem;}

/* 卡片内图片占位 */
.card-img{
  border-radius:8px;
  margin-bottom:12px;
  background:linear-gradient(135deg,#f0f0f5,#e0e0ea);
  min-height:120px;
}

body.dark-mode .card-img{
  background:linear-gradient(135deg,#1a2a45,#0f1c2e);
}

/* 链接列表 */
.link-list{
  list-style:none;
}

.link-list li{
  padding:8px 0;
  border-bottom:1px dashed var(--border-light);
}

body.dark-mode .link-list li{
  border-bottom-color:var(--border-dark);
}

.link-list a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  transition:all .3s ease;
}

.link-list a:hover{
  padding-left:8px;
  color:var(--accent);
}

/* 标签组 */
.tag-group{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin:12px 0;
}

/* 分隔线 */
.divider{
  height:1px;
  background:linear-gradient(90deg,transparent,var(--border-light),transparent);
  margin:32px 0;
  border:none;
}

body.dark-mode .divider{
  background:linear-gradient(90deg,transparent,var(--border-dark),transparent);
}

/* 引用块 */
blockquote{
  border-left:4px solid var(--accent);
  padding:16px 20px;
  margin:16px 0;
  background:rgba(155,77,202,.04);
  border-radius:0 8px 8px 0;
  font-style:italic;
  color:var(--text-secondary-light);
}

body.dark-mode blockquote{
  background:rgba(155,77,202,.08);
  color:var(--text-secondary-dark);
}

/* 代码块 */
code{
  background:rgba(30,58,95,.06);
  padding:2px 8px;
  border-radius:4px;
  font-family:'Fira Code','Courier New',monospace;
  font-size:.9em;
  color:var(--accent);
}

body.dark-mode code{
  background:rgba(255,255,255,.08);
}