/* ============================================
   www.海角社区.com - 原创样式表
   品牌色系：活力橙 #FF6B35 / 深夜蓝 #1A1A2E / 玫红 #E94560
   ============================================ */

/* --- 基础重置 --- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:#0F0F23;color:#EAEAEA;line-height:1.7;overflow-x:hidden}
a{color:#FF6B35;text-decoration:none;transition:color .3s}
a:hover{color:#E94560}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3;color:#fff}

/* --- 容器 --- */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:60px 0}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:2rem;background:linear-gradient(135deg,#FF6B35,#E94560);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;display:inline-block;margin-bottom:10px}
.section-title p{color:#a0a0b8;font-size:1rem}

/* --- 头部导航 --- */
.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(15,15,35,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,107,53,.15);transition:all .3s}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;max-width:1200px;margin:0 auto;padding:0 20px}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{height:36px;width:auto}
.logo-wrap span{font-size:1.25rem;font-weight:700;color:#fff}
.main-nav{display:flex;gap:6px}
.main-nav a{padding:8px 14px;border-radius:6px;font-size:.9rem;color:#ccc;transition:all .3s}
.main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(255,107,53,.15)}
.mobile-menu-btn{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}

/* --- 搜索框 --- */
.search-bar{background:rgba(26,26,46,.8);padding:14px 0;border-bottom:1px solid rgba(255,107,53,.1)}
.search-bar .container{display:flex;justify-content:center}
.search-box{display:flex;max-width:560px;width:100%}
.search-box input{flex:1;padding:10px 18px;border:2px solid rgba(255,107,53,.3);border-right:none;border-radius:8px 0 0 8px;background:rgba(15,15,35,.6);color:#eee;font-size:.95rem;outline:none;transition:border-color .3s}
.search-box input:focus{border-color:#FF6B35}
.search-box button{padding:10px 24px;background:linear-gradient(135deg,#FF6B35,#E94560);border:none;border-radius:0 8px 8px 0;color:#fff;font-size:.95rem;cursor:pointer;transition:opacity .3s}
.search-box button:hover{opacity:.85}

/* --- Banner --- */
.hero-banner{position:relative;min-height:520px;display:flex;align-items:center;justify-content:center;overflow:hidden;margin-top:64px}
.hero-banner .bg-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:brightness(.55)}
.hero-content{position:relative;z-index:2;text-align:center;padding:40px 20px;max-width:800px}
.hero-content h1{font-size:2.8rem;margin-bottom:16px;text-shadow:0 2px 20px rgba(0,0,0,.5)}
.hero-content h1 .brand{color:#FF6B35}
.hero-content p{font-size:1.15rem;color:#d0d0e0;margin-bottom:24px;line-height:1.8}
.x6da0{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn-primary{display:inline-block;padding:12px 32px;background:linear-gradient(135deg,#FF6B35,#E94560);color:#fff;border-radius:8px;font-weight:600;transition:transform .3s,box-shadow .3s}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(233,69,96,.35);color:#fff}
.d04oxoe{display:inline-block;padding:12px 32px;border:2px solid #FF6B35;color:#FF6B35;border-radius:8px;font-weight:600;transition:all .3s}
.d04oxoe:hover{background:#FF6B35;color:#fff}

/* --- 视频卡片网格 --- */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.video-card{position:relative;border-radius:12px;overflow:hidden;background:#1A1A2E;transition:transform .3s,box-shadow .3s;cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 35px rgba(233,69,96,.2)}
.video-card .thumb{position:relative;padding-top:56.25%;overflow:hidden}
.video-card .thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-card:hover .thumb img{transform:scale(1.08)}
.video-card .play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:56px;height:56px;background:rgba(255,107,53,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s}
.video-card:hover .play-btn{opacity:1}
.play-btn::after{content:"";display:block;width:0;height:0;border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.video-card .card-body{padding:14px 16px}
.video-card .card-title{font-size:1rem;font-weight:600;color:#fff;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-card .card-meta{display:flex;gap:12px;font-size:.8rem;color:#888}
.video-card .card-meta span{display:flex;align-items:center;gap:4px}
.video-card .tag{position:absolute;top:10px;left:10px;background:rgba(233,69,96,.9);color:#fff;padding:3px 10px;border-radius:4px;font-size:.75rem;z-index:2}
.video-card .duration{position:absolute;bottom:10px;right:10px;background:rgba(0,0,0,.7);color:#fff;padding:2px 8px;border-radius:4px;font-size:.75rem;z-index:2}

/* --- 模块卡片 --- */
.o0a2b{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.orfq9{background:linear-gradient(145deg,#1A1A2E,#16162a);border:1px solid rgba(255,107,53,.1);border-radius:12px;padding:28px 24px;transition:all .3s;text-align:center}
.orfq9:hover{border-color:rgba(255,107,53,.4);box-shadow:0 8px 30px rgba(255,107,53,.1)}
.orfq9 .icon{font-size:2.5rem;margin-bottom:14px}
.orfq9 h3{font-size:1.1rem;margin-bottom:10px;color:#FF6B35}
.orfq9 p{font-size:.9rem;color:#a0a0b8;line-height:1.6}

/* --- 专家展示 --- */
.ru0wp23{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:28px}
.z920x{background:#1A1A2E;border-radius:12px;overflow:hidden;text-align:center;transition:transform .3s}
.z920x:hover{transform:translateY(-4px)}
.z920x .avatar{width:100%;aspect-ratio:1;object-fit:cover}
.z920x .info{padding:20px 16px}
.z920x .name{font-size:1.15rem;font-weight:700;color:#fff;margin-bottom:4px}
.z920x .role{color:#FF6B35;font-size:.9rem;margin-bottom:10px}
.z920x .desc{font-size:.85rem;color:#a0a0b8;line-height:1.6;margin-bottom:14px}
.z920x .btns{display:flex;gap:10px;justify-content:center}
.z920x .btns a{padding:6px 16px;border-radius:6px;font-size:.8rem}

/* --- FAQ --- */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid rgba(255,107,53,.15);border-radius:10px;margin-bottom:12px;overflow:hidden;background:#1A1A2E}
.faq-item .faq-q{padding:16px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;color:#fff;transition:background .3s}
.faq-item .faq-q:hover{background:rgba(255,107,53,.08)}
.faq-item .faq-q .arrow{transition:transform .3s;color:#FF6B35;font-size:1.2rem}
.faq-item.open .faq-q .arrow{transform:rotate(180deg)}
.faq-item .faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .3s;padding:0 20px;color:#a0a0b8;font-size:.95rem;line-height:1.7}
.faq-item.open .faq-a{max-height:500px;padding:0 20px 16px}

/* --- 用户评论 --- */
.z523iqli{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.ne7n5pu{background:#1A1A2E;border-radius:12px;padding:24px;border:1px solid rgba(255,107,53,.1)}
.ne7n5pu .stars{color:#FF6B35;font-size:1rem;margin-bottom:10px;letter-spacing:2px}
.ne7n5pu .text{font-size:.95rem;color:#ccc;line-height:1.7;margin-bottom:14px;font-style:italic}
.ne7n5pu .author{display:flex;align-items:center;gap:10px}
.ne7n5pu .oe5n9n{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#FF6B35,#E94560);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:.9rem}
.ne7n5pu .s90c2 .name{font-size:.9rem;color:#fff;font-weight:600}
.ne7n5pu .s90c2 .date{font-size:.8rem;color:#888}

/* --- 联系我们 --- */
.biv860k{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.pl9ne{background:#1A1A2E;border-radius:12px;padding:24px;text-align:center;border:1px solid rgba(255,107,53,.1)}
.pl9ne h4{color:#FF6B35;margin-bottom:12px;font-size:1rem}
.pl9ne p{color:#a0a0b8;font-size:.9rem;line-height:1.7}
.pl9ne img{max-width:180px;margin:12px auto 0;border-radius:8px}

/* --- 社区模块 --- */
.r0vjf2{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.ovc3yv{position:relative;border-radius:12px;overflow:hidden;transition:transform .3s}
.ovc3yv:hover{transform:translateY(-4px)}
.ovc3yv img{width:100%;aspect-ratio:16/9;object-fit:cover}
.ovc3yv .overlay{position:absolute;bottom:0;left:0;right:0;padding:16px;background:linear-gradient(transparent,rgba(0,0,0,.85))}
.ovc3yv .overlay h3{font-size:1.05rem;color:#fff;margin-bottom:4px}
.ovc3yv .overlay p{font-size:.85rem;color:#ccc}

/* --- 页脚 --- */
.site-footer{background:#0a0a18;border-top:1px solid rgba(255,107,53,.1);padding:40px 0 20px}
.vdmz5{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:30px;margin-bottom:30px}
.lgi021w h4{color:#FF6B35;font-size:1rem;margin-bottom:14px}
.lgi021w p,.lgi021w a{color:#888;font-size:.9rem;line-height:1.8}
.lgi021w a:hover{color:#FF6B35}
.lgi021w .wmum7l{width:140px;border-radius:8px;margin-top:8px}
.d9c3b3e0{text-align:center;padding-top:20px;border-top:1px solid rgba(255,255,255,.05);color:#666;font-size:.85rem}
.d9c3b3e0 a{color:#888}

/* --- 分享按钮 --- */
.tol74x4{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:20px}
.a10q3pp{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border-radius:6px;font-size:.85rem;color:#fff;transition:opacity .3s}
.a10q3pp:hover{opacity:.8;color:#fff}
.a10q3pp.wechat{background:#07C160}
.a10q3pp.weibo{background:#E6162D}
.a10q3pp.douyin{background:#161823}
.a10q3pp.bilibili{background:#00A1D6}

/* --- 面包屑 --- */
.breadcrumb{padding:12px 0;font-size:.85rem;color:#888}
.breadcrumb a{color:#FF6B35}
.breadcrumb span{margin:0 6px;color:#555}

/* --- 内页通用 --- */
.jgktav0h{position:relative;min-height:280px;display:flex;align-items:center;justify-content:center;margin-top:64px;background:linear-gradient(135deg,#1A1A2E 0%,#0F0F23 100%);overflow:hidden}
.jgktav0h::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 30% 50%,rgba(255,107,53,.15),transparent 60%)}
.jgktav0h h1{font-size:2.2rem;text-align:center;position:relative;z-index:2}
.ildf23kj{padding:40px 0 60px}
.ildf23kj p{margin-bottom:16px;line-height:1.8;color:#c0c0d0}
.ildf23kj h2{font-size:1.6rem;color:#FF6B35;margin:30px 0 16px}
.ildf23kj h3{font-size:1.3rem;color:#fff;margin:24px 0 12px}

/* --- How-To 指南 --- */
.hhzeyo{counter-reset:step}
.egmgxx7n{counter-increment:step;position:relative;padding:20px 20px 20px 70px;background:#1A1A2E;border-radius:10px;margin-bottom:16px;border:1px solid rgba(255,107,53,.1)}
.egmgxx7n::before{content:counter(step);position:absolute;left:20px;top:20px;width:36px;height:36px;background:linear-gradient(135deg,#FF6B35,#E94560);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1rem}
.egmgxx7n h4{color:#fff;margin-bottom:6px}
.egmgxx7n p{color:#a0a0b8;font-size:.9rem}

/* --- 响应式 --- */
@media(max-width:768px){
  .main-nav{display:none;position:absolute;top:64px;left:0;right:0;background:#0F0F23;flex-direction:column;padding:16px;border-bottom:1px solid rgba(255,107,53,.15)}
  .main-nav.show{display:flex}
  .mobile-menu-btn{display:block}
  .hero-content h1{font-size:1.8rem}
  .hero-banner{min-height:380px}
  .section{padding:40px 0}
  .video-grid,.o0a2b,.ru0wp23,.z523iqli,.biv860k,.r0vjf2{grid-template-columns:1fr}
  .vdmz5{grid-template-columns:1fr 1fr}
  .header-inner{padding:0 16px}
}
@media(max-width:480px){
  .vdmz5{grid-template-columns:1fr}
  .hero-content h1{font-size:1.5rem}
  .search-box{flex-direction:column}
  .search-box input{border-right:2px solid rgba(255,107,53,.3);border-radius:8px 8px 0 0}
  .search-box button{border-radius:0 0 8px 8px}
}

/* --- 时效性标签栏 --- */
.gsbis6sf{background:linear-gradient(90deg,#FF6B35,#E94560);padding:10px 0;overflow:hidden}
.gsbis6sf .container{display:flex;align-items:center;gap:12px}
.jeg3tlru{background:#fff;color:#E94560;padding:3px 12px;border-radius:4px;font-size:.8rem;font-weight:700;white-space:nowrap}
.vow6qf2{color:#fff;font-size:.85rem;white-space:nowrap;animation:scrollText 30s linear infinite}
@keyframes scrollText{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* --- 视频卡片video标签 --- */
.video-card .thumb video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-card:hover .thumb video{transform:scale(1.08)}
.video-card .c9kf74c3{font-size:.85rem;color:#a0a0b8;line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-card .ukzdm{font-size:.78rem;color:#666;margin-top:6px;border-top:1px solid rgba(255,255,255,.05);padding-top:6px}

/* --- AI赋能网格 --- */
.r8xf96a{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}
@media(max-width:768px){.r8xf96a{grid-template-columns:1fr}}

/* --- 内容声明 --- */
.pgk5y{background:#1A1A2E;border:1px solid rgba(255,107,53,.1);border-radius:10px;padding:20px 24px}
.pgk5y h6{color:#FF6B35;font-size:.9rem;margin-bottom:8px}
.pgk5y p{color:#888;font-size:.82rem;line-height:1.7}

/* --- 交替背景 --- */
.h78r3{background:linear-gradient(180deg,#12122a 0%,#0F0F23 100%)}

/* --- 懒加载占位 --- */
.lazy{opacity:0;transition:opacity .5s}
.lazy.loaded{opacity:1}

/* --- 动画 --- */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.animate-in{animation:fadeInUp .6s ease forwards}