:root{
  --space:#0B1430;      /* 深空蓝 */
  --space-2:#13204a;
  --space-3:#1b2b5e;
  --cyan:#2DD4BF;       /* 灵光青 */
  --cyan-2:#14b8a6;
  --cyan-soft:#5eead4;
  --ink:#1f2937;
  --muted:#64748b;
  --line:#e5e7eb;
  --bg:#f5f8fc;
  --card:#ffffff;
  --warn:#b45309;
  --gold:#E9C46A;      /* 金色（与电路板一致） */
  --radius:16px;
  --shadow:0 6px 24px rgba(11,20,48,.08);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Segoe UI,Roboto,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.7;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px;}

/* ---------- 顶部导航 ---------- */
.nav{
  position:sticky;top:0;z-index:50;background:rgba(11,20,48,.92);
  backdrop-filter:blur(8px);border-bottom:1px solid rgba(45,212,191,.25);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:62px;}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;text-decoration:none;cursor:pointer;transition:.2s;}
.brand:hover{color:var(--cyan-soft);}
.brand .dot{width:12px;height:12px;border-radius:50%;background:var(--cyan);box-shadow:0 0 14px var(--cyan);}
.nav-toggle{display:none;margin-left:auto;background:transparent;border:1px solid rgba(45,212,191,.45);color:#fff;font-size:20px;line-height:1;padding:7px 11px;border-radius:10px;cursor:pointer;}
.nav-toggle:hover{background:rgba(45,212,191,.16);}
.nav-links{display:flex;gap:6px;}
.nav-links a{padding:8px 14px;color:#cbd5e1;border-radius:10px;font-size:14.5px;transition:.2s;}
.nav-links a:hover,.nav-links a.active{background:rgba(45,212,191,.16);color:var(--cyan-soft);}
.nav-cta{padding:8px 16px;border-radius:999px;background:var(--cyan);color:var(--space);font-weight:700;font-size:14px;}
.nav-cta:hover{background:var(--cyan-soft);}

/* ---------- 通用 ---------- */
.btn{display:inline-block;padding:12px 22px;border-radius:999px;font-weight:700;font-size:15px;cursor:pointer;border:none;transition:.2s;}
.btn-primary{background:var(--cyan);color:var(--space);}
.btn-primary:hover{background:var(--cyan-soft);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--cyan);border:1px solid var(--cyan);}
.btn-ghost:hover{background:rgba(45,212,191,.12);}
.section{padding:54px 0;}
.section h2.title{font-size:26px;color:var(--space);margin:0 0 6px;text-align:center;}
.section p.lead{text-align:center;color:var(--muted);margin:0 0 32px;}
.muted{color:var(--muted);}
.pill{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:700;}
.pill.free{background:#ecfdf5;color:#047857;}
.pill.paid{background:#fef2f2;color:#b91c1c;}
.pill.tier{background:#eef2ff;color:#4338ca;}
.pill.cyan{background:rgba(45,212,191,.16);color:var(--cyan-2);}
.grid{display:grid;gap:18px;}
.grid.cols-2{grid-template-columns:repeat(2,1fr);}
.grid.cols-3{grid-template-columns:repeat(3,1fr);}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);}
.card h3{margin:0 0 8px;color:var(--space);font-size:18px;}

/* ---------- 首页 Hero ---------- */
.hero{
  background:linear-gradient(135deg,var(--space) 0%,var(--space-2) 55%,var(--space-3) 100%);
  color:#fff;padding:72px 0 64px;position:relative;overflow:hidden;
}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(45,212,191,.25),transparent 70%);}
.hero h1{font-size:40px;line-height:1.25;margin:14px 0 12px;font-weight:900;}
.hero h1 .hl{color:var(--cyan);}
.hero p.sub{font-size:17px;color:var(--cyan-soft);max-width:640px;}
.hero .actions{margin-top:26px;display:flex;gap:14px;flex-wrap:wrap;}

/* 分层入口卡片 */
.tier-card{position:relative;overflow:hidden;}
.tier-card .ic{width:46px;height:46px;border-radius:12px;background:linear-gradient(135deg,var(--space),var(--space-3));
  color:var(--cyan);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:12px;}
.tier-card p{color:var(--muted);font-size:14px;margin:6px 0 14px;}
.tier-card .arrow{color:var(--cyan-2);font-weight:700;font-size:14px;}

/* 热门免费 */
.free-card .tag{font-size:12px;color:var(--cyan-2);font-weight:700;}
.free-card h3{font-size:17px;}
.free-card p{color:var(--muted);font-size:13.5px;margin:6px 0 0;}

/* 外链成交区 */
.buy{background:linear-gradient(135deg,#0e1b3f,#16264f);color:#fff;border-radius:var(--radius);}
.buy .grid.cols-3 .card{background:rgba(255,255,255,.04);border:1px solid rgba(45,212,191,.22);color:#fff;}
.buy .card h3{color:#fff;}
.buy .qr{width:96px;height:96px;border-radius:12px;background:#fff;margin:0 auto 10px;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:12px;text-align:center;}
.buy .card p{color:#aebfdc;font-size:13px;}
.buy .card .go{display:inline-block;margin-top:10px;color:var(--cyan);font-weight:700;font-size:13.5px;}
/* 购买区：返回首页按钮 + 页脚回主页链接 */
.buy-back{display:flex;justify-content:center;margin-top:26px;position:relative;z-index:2;}
.buy-back a{border:1.5px solid var(--gold);color:var(--gold);background:rgba(233,196,106,.08);padding:11px 26px;border-radius:999px;font-weight:700;font-size:14px;text-decoration:none;transition:.18s;}
.buy-back a:hover{background:rgba(233,196,106,.2);box-shadow:0 0 18px rgba(233,196,106,.35);}
.footer a.brand-foot{color:#cfe0ff;text-decoration:none;}
.footer a.brand-foot:hover{color:var(--cyan);}

/* ---------- 提示词库 ---------- */
.toolbar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:22px;}
.search{flex:1;min-width:220px;display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:10px 16px;}
.search input{border:none;outline:none;font-size:15px;width:100%;background:transparent;color:var(--ink);}
.chips{display:flex;flex-wrap:wrap;gap:8px;}
.chip{padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--muted);font-size:13.5px;cursor:pointer;transition:.2s;}
.chip:hover{border-color:var(--cyan);color:var(--cyan-2);}
.chip.active{background:var(--space);color:#fff;border-color:var(--space);}
.prompt-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:18px;}
.pcard{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;box-shadow:var(--shadow);display:flex;flex-direction:column;}
.pcard .head{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;margin-bottom:10px;}
.pcard .head .name{font-weight:800;color:var(--space);font-size:16px;}
.pcard .meta{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px;}
.pver{background:#f8fafc;border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin-bottom:10px;}
.pver .lab{font-size:12px;font-weight:700;color:var(--cyan-2);display:flex;justify-content:space-between;align-items:center;margin-bottom:4px;}
.pver .txt{font-size:13.5px;color:#334155;line-height:1.6;word-break:break-word;}
.copy{border:1px solid var(--cyan);background:#fff;color:var(--cyan-2);border-radius:8px;padding:3px 10px;font-size:12px;cursor:pointer;font-weight:700;}
.copy:hover{background:var(--cyan);color:#fff;}
.pcard .note{margin-top:auto;font-size:12.5px;color:var(--muted);border-top:1px dashed var(--line);padding-top:10px;}

/* ---------- 教程系列页 ---------- */
.series-hero{background:linear-gradient(135deg,var(--space),var(--space-3));color:#fff;padding:48px 0;}
.series-hero h1{font-size:30px;margin:8px 0 6px;}
.series-hero p{color:var(--cyan-soft);max-width:680px;}
.lesson{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;margin-bottom:14px;box-shadow:var(--shadow);}
.lesson .no{flex:0 0 42px;height:42px;border-radius:12px;background:var(--space);color:var(--cyan);display:flex;align-items:center;justify-content:center;font-weight:800;}
.lesson .body{flex:1;}
.lesson .body h3{margin:0 0 4px;font-size:16.5px;color:var(--space);}
.lesson .body p{margin:0;color:var(--muted);font-size:13.5px;}
.lesson .badge{margin-left:auto;}
.video-box{position:relative;background:#0b1430;border-radius:14px;overflow:hidden;aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;color:#7e8db0;text-align:center;margin:8px 0 18px;}
.video-box .play{width:64px;height:64px;border-radius:50%;background:rgba(45,212,191,.18);border:2px solid var(--cyan);display:flex;align-items:center;justify-content:center;color:var(--cyan);font-size:24px;margin-bottom:10px;}
.cta-card{background:linear-gradient(135deg,#0e1b3f,#16264f);color:#fff;border-radius:var(--radius);padding:26px;text-align:center;}
.cta-card h3{color:#fff;margin:0 0 6px;}
.cta-card p{color:#aebfdc;margin:0 0 16px;}
.cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.footer{background:var(--space);color:#9fb0d0;padding:34px 0;font-size:13.5px;}
.footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;}

@media(max-width:820px){
  .grid.cols-2,.grid.cols-3{grid-template-columns:1fr;}
  .hero h1{font-size:30px;}
  .nav-toggle{display:block;}
  .nav-links{display:none;position:absolute;top:62px;left:0;right:0;flex-direction:column;gap:0;background:rgba(11,20,48,.98);border-bottom:1px solid rgba(45,212,191,.25);padding:6px 0;box-shadow:0 12px 30px rgba(0,0,0,.4);}
  .nav-links.open{display:flex;}
  .nav-links a{padding:13px 22px;border-radius:0;}
  .nav-cta{display:none;}
}

/* ===== 艺术装饰层：金色电路板走线 + 镜头光圈（半透明） ===== */
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:url("circuit.svg");background-size:680px;opacity:.04;
}
.wrap{position:relative;z-index:1;}
.nav-inner{position:relative;z-index:1;}

/* 浅色区块：极淡金色电路底纹（若有若无） */
.section{position:relative;overflow:hidden;}
.section::before{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background:url("circuit.svg");background-size:680px;opacity:.05;
}

/* 卡片：右上角镜头光圈角标，统一设计语言 */
.card,.pcard{position:relative;overflow:hidden;}
.card::after,.pcard::after{
  content:"";position:absolute;right:-28px;top:-28px;width:84px;height:84px;
  background:url("lens.svg") center/contain no-repeat;opacity:.09;pointer-events:none;
}
.buy .card::after{opacity:.18;}

/* 首屏 Hero：新 banner 图 + 左侧暗色遮罩 + 若隐若现的金色电路 */
.hero::before{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:url("circuit.svg");background-size:600px;
  opacity:.25;mix-blend-mode:screen;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background:
    linear-gradient(90deg, rgba(11,20,48,.88) 0%, rgba(11,20,48,.45) 45%, rgba(11,20,48,.10) 100%),
    url("hero-banner.png") center/cover no-repeat;
}

/* 首屏文字加阴影，确保在复杂 banner 上可读 */
.hero h1,.hero p.sub,.hero .actions{position:relative;z-index:2;text-shadow:0 2px 10px rgba(11,20,48,.6);}

/* 深色区块（购买区 / 系列头 / 页脚 / 导航）：淡金电路 + 镜头 */
.nav{position:sticky;top:0;z-index:50;}
.nav::before{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background:url("circuit.svg");background-size:560px;opacity:.08;
}
.buy,.series-hero,.footer{position:relative;overflow:hidden;}
.buy::before,.series-hero::before,.footer::before{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background:url("circuit.svg");background-size:640px;opacity:.10;
}

/* ===================== 学习社区 ===================== */
.community{padding-top:40px;}
.comm-top{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap;}
.comm-actions{display:flex;align-items:center;gap:12px;}

/* 我的兴趣条 */
  .interest-bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:16px;
  padding:10px 14px;background:rgba(45,212,191,.08);border:1px solid rgba(45,212,191,.3);border-radius:12px;}

  /* 单个视频观看讨论 */
  .video-comments{margin:22px 0 8px;padding:18px;background:rgba(45,212,191,.06);border:1px solid rgba(45,212,191,.28);border-radius:16px;}
  .vc-title{margin:0 0 12px;color:var(--space);font-size:18px;}
  .vc-list{display:flex;flex-direction:column;gap:12px;margin-bottom:14px;}
  .vc-form{display:flex;flex-wrap:wrap;gap:10px;align-items:flex-start;}
  .vc-form .field{flex:1;min-width:200px;}
.ib-label{font-size:13px;color:var(--muted);}
.ib-edit{margin-left:auto;background:none;border:none;color:var(--cyan-2);font-weight:700;cursor:pointer;font-size:13px;}

/* 标签页 */
.comm-tabs{display:flex;gap:8px;margin-bottom:18px;border-bottom:1px solid var(--line);}
.comm-tabs .tab{background:none;border:none;padding:10px 14px;font-size:15px;color:var(--muted);cursor:pointer;border-bottom:2px solid transparent;}
.comm-tabs .tab.active{color:var(--space);font-weight:800;border-bottom-color:var(--cyan);}

/* 分类筛选 + 排序 */
.comm-filter{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:18px;}
.filter-tags{display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.ftag{padding:5px 13px;border-radius:999px;font-size:13px;font-weight:700;cursor:pointer;
  background:rgba(255,255,255,.5);color:var(--muted);border:1px solid var(--line);transition:.15s;}
.ftag:hover{color:var(--space);border-color:rgba(45,212,191,.6);}
.ftag.active{background:var(--cyan);color:var(--space);border-color:var(--cyan);}
.sort-switch{display:inline-flex;background:rgba(255,255,255,.5);border:1px solid var(--line);border-radius:999px;padding:3px;}
.sort-btn{border:none;background:none;padding:5px 12px;border-radius:999px;font-size:13px;font-weight:700;color:var(--muted);cursor:pointer;transition:.15s;}
.sort-btn.active{background:var(--space);color:#fff;}

/* 信息流 */
.comm-feed{display:grid;gap:16px;}

/* 话题卡 */
.topic-card{cursor:pointer;transition:.2s;}
.topic-card:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(11,20,48,.12);border-color:rgba(45,212,191,.5);}
.tc-head{display:flex;align-items:center;gap:10px;margin-bottom:10px;}
.tc-meta{display:flex;flex-direction:column;line-height:1.3;}
.tc-meta b{font-size:14px;color:var(--space);}
.tc-meta .muted{font-size:12px;}
.tc-title{margin:0 0 6px;font-size:18px;color:var(--space);}
.tc-body{margin:0 0 12px;color:#334155;font-size:14.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.tc-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px;}
.tc-foot{display:flex;justify-content:space-between;align-items:center;font-size:13px;}
.tc-comments{color:var(--muted);}
.tc-open{color:var(--cyan-2);font-weight:700;}

/* 标签芯片 */
.tagchip{display:inline-block;padding:3px 11px;border-radius:999px;font-size:12.5px;font-weight:700;
  background:rgba(45,212,191,.14);color:var(--cyan-2);border:1px solid transparent;cursor:default;}
.tag-picker .tagchip{cursor:pointer;transition:.15s;}
.tag-picker .tagchip:hover{background:rgba(45,212,191,.24);}
.tag-picker .tagchip.sel{background:var(--cyan);color:var(--space);border-color:var(--cyan);}

/* 头像 */
.avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--space),var(--space-3));
  color:var(--cyan-soft);display:inline-flex;align-items:center;justify-content:center;font-weight:800;}
.avatar.sm{width:34px;height:34px;font-size:14px;}
.avatar.xs{width:28px;height:28px;font-size:12px;flex:none;}

/* 用户芯片 */
.user-chip{display:flex;align-items:center;gap:8px;background:rgba(45,212,191,.12);border:1px solid rgba(45,212,191,.3);
  color:#fff;padding:6px 12px;border-radius:999px;cursor:pointer;font-size:14px;}
.user-chip .avatar{width:28px;height:28px;font-size:12px;}

/* 弹窗 */
.modal{position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;
  background:rgba(11,20,48,.6);backdrop-filter:blur(3px);padding:20px;}
.modal.show{display:flex;}
.modal-box{position:relative;background:var(--card);border-radius:18px;padding:26px;width:100%;max-width:520px;
  max-height:88vh;overflow:auto;box-shadow:0 20px 60px rgba(0,0,0,.3);animation:pop .2s ease;}
@keyframes pop{from{transform:scale(.96);opacity:0;}to{transform:scale(1);opacity:1;}}
.modal-close{position:absolute;top:12px;right:14px;background:none;border:none;font-size:24px;line-height:1;color:var(--muted);cursor:pointer;}
.modal h3{font-size:20px;}

/* 表单 */
.field{width:100%;margin-top:10px;padding:11px 13px;border:1px solid var(--line);border-radius:12px;
  font-size:14.5px;font-family:inherit;color:var(--ink);}
.field:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(45,212,191,.18);}
textarea.field{resize:vertical;}
.field-label{margin-top:14px;font-size:13px;color:var(--muted);font-weight:700;}
.tag-picker{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px;}

/* 二维码模拟 */
.qr-sim{display:flex;justify-content:center;margin:6px 0;}
.qr-grid{display:grid;grid-template-columns:repeat(21,1fr);width:180px;height:180px;background:#fff;padding:8px;border-radius:10px;}
.qr-grid i{background:#fff;}
.qr-grid i.on{background:#0B1430;border-radius:1px;}

/* 详情 / 评论 */
.sep{border:none;border-top:1px solid var(--line);margin:14px 0;}
.comment-list{display:flex;flex-direction:column;gap:12px;}
.comment{display:flex;gap:10px;align-items:flex-start;}
.comment b{font-size:14px;color:var(--space);}
.comment .muted{font-size:12px;margin-left:6px;}
.comment p{font-size:14px;color:#334155;margin:2px 0 0;}
.comment-form{margin-top:14px;}

.empty-hint{text-align:center;color:var(--muted);padding:40px 0;}

/* 响应式 */
@media(max-width:680px){
  .grid.cols-2,.grid.cols-3{grid-template-columns:1fr;}
  .comm-top{flex-direction:column;align-items:stretch;}
  .comm-actions{justify-content:space-between;}
  .hero h1{font-size:30px;}
}

/* ===================== AI 漫剧资讯 ===================== */
.news-head{max-width:920px;}
.news-title{font-size:34px;color:var(--space);margin:6px 0 8px;letter-spacing:.5px;}
.news-updated{display:inline-block;margin-top:10px;font-size:13px;color:var(--muted);
  background:rgba(45,212,191,.1);border:1px solid rgba(45,212,191,.28);padding:5px 12px;border-radius:999px;}
.news-updated b{color:var(--cyan-2);}
.news-wrap{max-width:920px;display:grid;gap:16px;}
.news-card{display:block;text-decoration:none;padding:20px 22px;transition:.2s;}
.news-card:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(11,20,48,.12);border-color:rgba(45,212,191,.5);}
.nc-top{display:flex;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap;}
.nc-meta{font-size:12.5px;color:var(--muted);}
.nc-title{margin:0 0 8px;font-size:18px;color:var(--space);line-height:1.4;}
.news-card:hover .nc-title{color:var(--cyan-2);}
.nc-sum{margin:0;color:#334155;font-size:14.5px;line-height:1.65;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.nc-link{display:inline-block;margin-top:12px;color:var(--cyan-2);font-weight:700;font-size:14px;}

@media(max-width:680px){
  .news-title{font-size:26px;}
}