/* =========================================================
 * Dark2 · 暗色付费页样式 · 1:1 还原设计稿视觉
 * @package Dark2
 * ========================================================= */

/* ============ 设计令牌 ============ */
:root{
  --bg:        #0a0a0d;
  --bg-soft:   #0f0f14;
  --card:      #15151b;
  --card-2:    #1b1b22;
  --card-3:    #21212a;
  --line:      rgba(255,255,255,.07);
  --line-2:    rgba(255,255,255,.13);
  --line-3:    rgba(255,255,255,.22);
  --text:      #eef0f4;
  --text-2:    #a8abb3;
  --text-3:    #6d707a;
  --accent:    #3ce2c0;
  --accent-2:  #58b7ff;
  --accent-ink:#06231d;
  --accent-dim:rgba(60,226,192,.13);
  --accent-mid:rgba(60,226,192,.26);
  --amber:     #eab354;
  --amber-2:   #f5cc7a;
  --amber-dim: rgba(234,179,84,.11);
  --rose:      #ff7eb3;
  --violet:    #8a7bff;
  --radius:    14px;
  --radius-l:  18px;
  --shadow:    0 24px 60px rgba(0,0,0,.5);
  --font: "Noto Sans SC","Source Han Sans SC","思源黑体","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono: "SF Mono",ui-monospace,"JetBrains Mono",Menlo,Consolas,monospace;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
::selection{background:rgba(60,226,192,.28);color:#fff}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:1060px;margin:0 auto;padding:0 22px}

/* ============ 全局波形背景 ============ */
.bg-waves{position:fixed;inset:0;pointer-events:none;z-index:0;overflow:hidden}
.bg-waves .wave-track{position:absolute;left:0;top:0;width:200%;height:100%;animation:drift 26s linear infinite}
.bg-waves svg{width:100%;height:100%}
.bg-waves .wave-track.two{animation:drift 44s linear infinite reverse;opacity:.6}
@keyframes drift{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ============ 导航 ============ */
.nav{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  background:rgba(10,10,13,.72);border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{
  display:flex;align-items:center;gap:10px;
  font-weight:700;font-size:15.5px;color:var(--text);letter-spacing:.5px;
}
.logo:hover{text-decoration:none;color:var(--text)}
.logo .mark{
  width:30px;height:30px;border-radius:9px;
  background:linear-gradient(135deg,var(--accent-dim),rgba(88,183,255,.13));
  border:1px solid var(--accent-mid);
  display:grid;place-items:center;color:var(--accent);flex:0 0 auto;
}
.nav-links{display:flex;align-items:center;gap:18px}
.nav-links a{color:var(--text-2);font-size:13.5px;font-weight:500;display:inline-flex;align-items:center;gap:4px}
.nav-links a:hover{color:var(--accent);text-decoration:none}
.nav-sub{color:var(--text-3);font-weight:400;font-size:11.5px}
.nav-divider{width:1px;height:20px;background:var(--line-2);margin:0 4px;flex:0 0 auto}
.nav-auth{display:flex;align-items:center;gap:8px}
.btn-auth{
  display:inline-flex;align-items:center;
  font-family:var(--font);font-size:13px;font-weight:600;
  border-radius:10px;padding:8px 16px;transition:.18s;line-height:1.4;
}
.btn-auth.ghost{color:var(--text-2);border:1px solid var(--line-2);background:transparent}
.btn-auth.ghost:hover{color:var(--accent);border-color:var(--accent);text-decoration:none}
.btn-auth.solid{background:var(--accent);color:var(--accent-ink);border:1px solid var(--accent)}
.btn-auth.solid:hover{text-decoration:none;box-shadow:0 6px 20px rgba(60,226,192,.32);transform:translateY(-1px)}

/* ============ 登录态下拉菜单 ============ */
.nav-user{position:relative}
.user-btn{
  display:flex;align-items:center;gap:7px;
  background:transparent;border:1px solid rgba(255,255,255,.18);
  border-radius:999px;padding:4px 12px 4px 5px;
  cursor:pointer;color:var(--text);font-family:var(--font);
  transition:.15s;
}
.user-btn:hover{border-color:var(--accent);background:rgba(60,226,192,.06)}
.avatar{
  width:26px;height:26px;border-radius:50%;
  background:var(--accent);color:var(--accent-ink);
  display:grid;place-items:center;font-size:13px;font-weight:700;
  flex:0 0 auto;
}
.uname{font-size:13.5px;font-weight:500}
.user-menu{
  position:absolute;right:0;top:calc(100% + 10px);min-width:200px;
  background:var(--card-2);border:1px solid var(--line-2);border-radius:12px;
  padding:8px;box-shadow:0 18px 46px rgba(0,0,0,.55);
  display:none;z-index:60;
}
.user-menu.open{display:block}
.um-head{
  display:flex;align-items:center;gap:12px;padding:12px 12px 14px;
  border-bottom:1px solid var(--line);margin-bottom:8px;
}
.um-head .avatar{width:42px;height:42px;font-size:16px}
.um-name{font-size:15px;font-weight:700;color:var(--text)}
.um-badge{font-size:12px;color:var(--accent);margin-top:3px;font-weight:600}
.user-menu a{
  display:block;padding:10px 12px;border-radius:8px;
  font-size:14px;color:var(--text-2);font-weight:400;
}
.user-menu a:hover{background:var(--accent-dim);color:var(--accent);text-decoration:none}

/* ============ 通用按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font);font-weight:600;border-radius:11px;
  padding:12px 24px;font-size:14.5px;cursor:pointer;
  border:1px solid transparent;transition:.18s;text-decoration:none;line-height:1.3;
}
.btn-primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.btn-primary:hover{box-shadow:0 8px 26px rgba(60,226,192,.28);transform:translateY(-1px);text-decoration:none}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--line-2)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);text-decoration:none}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:80px 0 56px;
  overflow:hidden;
  isolation:isolate;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(900px 540px at 50% -10%,rgba(60,226,192,.18),transparent 60%),
    radial-gradient(720px 480px at 90% 10%,rgba(138,123,255,.12),transparent 60%);
  pointer-events:none;
}
.hero-waves{position:absolute;inset:0;pointer-events:none;z-index:-1;overflow:hidden;opacity:.85}
.hero-waves .wave-track{position:absolute;left:0;top:0;width:200%;height:100%;animation:drift 26s linear infinite}
.hero-waves .wave-track.two{animation:drift 44s linear infinite reverse;opacity:.6}
.hero-waves svg{width:100%;height:100%}

.hero-inner{position:relative;z-index:1}

.hero-kicker{
  display:inline-flex;align-items:center;gap:9px;
  padding:6px 14px 6px 12px;
  background:var(--accent-dim);border:1px solid var(--accent-mid);
  border-radius:99px;color:var(--accent);font-size:12.5px;font-weight:600;
  letter-spacing:.8px;margin-bottom:22px;
}
.hero-kicker .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 3px rgba(60,226,192,.22);
  animation:pulse 2.2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.35);opacity:.65}}

.hero-title{
  font-size:clamp(2.4rem,6.4vw,4.6rem);
  font-weight:900;line-height:1.05;letter-spacing:-1.5px;
  margin-bottom:18px;
}
.hero-title .hl{
  display:inline-block;
  background:linear-gradient(135deg,var(--accent) 0%,var(--accent-2) 50%,var(--violet) 100%);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
  padding:0 4px;
}

.hero-lead{
  color:var(--text-2);font-size:clamp(1rem,1.6vw,1.18rem);
  max-width:680px;margin-bottom:28px;line-height:1.7;
}

.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.meta-chip{
  display:inline-flex;align-items:center;gap:9px;
  padding:9px 16px;
  background:var(--card);border:1px solid var(--line-2);border-radius:99px;
  color:var(--text);font-size:13.5px;font-weight:500;
}
.meta-chip .ic{color:var(--accent);flex:0 0 auto}
.meta-chip b{color:var(--accent);font-weight:700}

.hero-cta{display:flex;align-items:center;flex-wrap:wrap;gap:18px}

/* 立即购买 · 彩色流动按钮 */
.btn-buy{
  display:inline-flex;align-items:center;
  padding:16px 32px;border-radius:13px;
  background:var(--card-2);border:1px solid var(--line-2);
  position:relative;overflow:hidden;
  transition:.2s;
}
.btn-buy::before{
  content:"";position:absolute;inset:-2px;border-radius:inherit;
  padding:1.5px;
  background:linear-gradient(120deg,#3ce2c0,#58b7ff,#8a7bff,#ff7eb3,#eab354,#3ce2c0);
  background-size:300% 100%;
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  animation:flow 6s linear infinite;
  opacity:.85;
}
.btn-buy:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(60,226,192,.18)}
.btn-buy:hover::before{opacity:1}
.btn-flow{
  display:inline-block; /* 关键：让 background-clip:text 生效 */
  font-weight:800;font-size:17px;letter-spacing:.3px;
  background:linear-gradient(90deg,#3ce2c0,#58b7ff,#8a7bff,#ff7eb3,#eab354,#3ce2c0);
  background-size:300% 100%;
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
  animation:flow 6s linear infinite;
}
@keyframes flow{from{background-position:0% 0}to{background-position:300% 0}}

/* ============ 区块通用 ============ */
section{position:relative;padding:48px 0}
.sec-head{margin-bottom:24px}
.sec-tag{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12px;font-weight:800;letter-spacing:2.5px;
  color:var(--accent);text-transform:uppercase;margin-bottom:12px;
  padding:5px 12px;background:var(--accent-dim);border-radius:99px;
  border:1px solid var(--accent-mid);
}
.sec-tag::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 8px var(--accent);
}
.sec-title{
  font-size:clamp(1.45rem,3.2vw,2rem);
  font-weight:800;letter-spacing:-.3px;line-height:1.25;color:var(--text);
}
.sec-sub{
  color:var(--text-2);font-size:14.5px;
  margin-top:10px;font-weight:400;max-width:680px;
}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-l)}

/* ============ 声明（琥珀色卡） ============ */
.notice{
  padding:24px 26px;
  background:linear-gradient(180deg,rgba(234,179,84,.10),rgba(234,179,84,.05));
  border:1.5px solid rgba(234,179,84,.30);
  border-radius:var(--radius-l);
  position:relative;overflow:hidden;
}
.notice::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(180deg,var(--amber),var(--amber-2));
}
.notice-h{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.notice-h h3{
  font-size:16px;font-weight:800;color:var(--amber-2);letter-spacing:.3px;
  display:inline;margin:0;
}
.notice p{font-size:14px;color:var(--text);font-weight:400;margin-bottom:10px;line-height:1.78}
.notice p:last-child{margin-bottom:0}
.notice .strong{font-weight:700;color:var(--amber-2)}
.notice .qq{
  color:var(--amber);font-weight:700;font-family:var(--mono);
  background:rgba(234,179,84,.13);padding:2px 8px;border-radius:6px;
  border:1px solid rgba(234,179,84,.25);
}
.notice .big{font-size:18px;font-weight:600;color:var(--text);margin-top:6px}

/* ============ 视频 ============ */
.video-shell{
  position:relative;
  border:1px solid var(--line-2);border-radius:var(--radius-l);overflow:hidden;
  background:#000;box-shadow:var(--shadow);
}
.video-shell iframe{display:block;width:100%;aspect-ratio:16/9;border:0}
.video-caption{
  display:flex;align-items:center;gap:10px;margin-top:14px;
  color:var(--text-2);font-size:14px;
}
.video-caption .eq{display:flex;align-items:flex-end;gap:3px;height:16px}
.video-caption .eq span{
  width:3px;border-radius:2px;background:var(--accent);opacity:.7;
  animation:eq 1.1s ease-in-out infinite;
}
.eq{display:flex;align-items:flex-end;gap:3px;height:18px}
.eq span{width:3px;border-radius:2px;background:var(--accent);opacity:.7;animation:eq 1.1s ease-in-out infinite}
@keyframes eq{0%,100%{height:5px}50%{height:18px}}

/* ============ 简介卡 ============ */
.intro-card{
  padding:24px 28px;
  background:linear-gradient(180deg,var(--card),var(--card-2));
  border:1px solid var(--line-2);
  position:relative;
}
.intro-card::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;
  background:linear-gradient(180deg,var(--accent),var(--accent-2));
  border-radius:0 3px 3px 0;
}
.intro-card p{
  font-size:15px;color:var(--text-2);line-height:1.85;
}

/* ============ 须知（编号卡片） ============ */
.rules{padding:0;overflow:hidden;background:var(--card);border:1px solid var(--line-2)}
.rule{
  display:flex;gap:16px;padding:18px 24px;align-items:flex-start;
  border-top:1px solid var(--line);
}
.rule:first-child{border-top:none}
.rule:last-child{border-bottom:none}
.rule:hover{background:var(--card-2)}
.rule .num{
  flex:0 0 auto;
  width:32px;height:32px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:var(--accent-ink);font-weight:800;font-size:14px;
  display:grid;place-items:center;
  box-shadow:0 4px 12px rgba(60,226,192,.25);
}
.rule .txt{font-size:14.5px;color:var(--text-2);line-height:1.75;flex:1}
.rule .txt b{color:var(--text);font-weight:700}
.rule .txt .qq{
  color:var(--amber);font-weight:700;font-family:var(--mono);
  background:rgba(234,179,84,.13);padding:1px 6px;border-radius:5px;
  border:1px solid rgba(234,179,84,.25);
}

/* ============ 付款区 ============ */
.pay-grid{max-width:520px;margin:12px auto 0}

/* 自定义付款卡（未购买时显示） */
.pay-box{
  background:linear-gradient(180deg,var(--card),var(--card-2));
  border:1px solid var(--line-2);border-radius:var(--radius-l);
  padding:46px 44px 42px;
  display:flex;flex-direction:column;align-items:center;
  box-shadow:var(--shadow);
}
.pb-title{
  font-size:19px;font-weight:800;color:var(--accent);
  letter-spacing:1.5px;margin-bottom:22px;text-align:center;
}
.pb-price{display:flex;align-items:baseline;gap:5px;line-height:1;margin-bottom:28px}
.pb-cur{font-size:1.7rem;color:var(--accent-2);font-weight:700}
.pb-amt{
  font-size:clamp(3rem,7vw,3.9rem);font-weight:900;
  color:var(--text);letter-spacing:-1px;
}
.pb-unit{font-size:1.2rem;color:var(--text-3);font-weight:500}
.pb-method{
  display:inline-flex;align-items:center;gap:12px;
  background:var(--card-3);border:1px solid var(--line-2);
  border-radius:12px;padding:10px 26px;margin-bottom:28px;
}
.pb-alipay-logo{
  width:30px;height:30px;border-radius:8px;flex:0 0 auto;
  background:#1677ff;color:#fff;
  display:grid;place-items:center;
  font-size:17px;font-weight:700;line-height:1;
}
.pb-method-name{font-size:16px;font-weight:600;color:var(--text)}
.pb-btn{
  width:100%;border:none;cursor:pointer;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:var(--accent-ink);border-radius:12px;
  font-family:var(--font);font-weight:800;font-size:16.5px;
  letter-spacing:2px;padding:16px 0;line-height:1.5;
  transition:.18s;
}
.pb-btn:hover{box-shadow:0 10px 30px rgba(60,226,192,.35);transform:translateY(-1px)}

/* TePass 原始输出：视觉隐藏，仅保留付款功能与二维码弹层 */
.pay-tepass-raw .tepasspost{
  border:none !important;background:transparent !important;
  padding:0 !important;margin:0 !important;min-height:0 !important;
}
.pay-tepass-raw #tepassPost,
.pay-tepass-raw .tips,
.pay-tepass-raw .tepass_top_left,
.pay-tepass-raw .tepass_top_right,
.pay-tepass-raw .cl{display:none !important}
.pay-tepass-raw #qrcode_box{
  position:static !important;margin:24px auto 0 !important;
  background-color:var(--card-2) !important;
  border:1px solid var(--line-2) !important;border-radius:13px !important;
}
#qrcode_box dtt{color:var(--text) !important;font-weight:700 !important}
#qrcode_box img{pointer-events:none}
.qrcode_tips{color:var(--text-2) !important}
.qrcode_money{color:var(--text-2) !important}
.qrcode_money span{color:var(--accent) !important}
.qrcode_text{background-color:var(--card) !important;color:var(--text) !important;border-radius:9px !important}

/* 已购买：下载内容卡片 */
.pay-tepass-owned .tepasspost{
  background:var(--card) !important;
  border:1px solid var(--line-2) !important;
  border-radius:var(--radius-l) !important;
  padding:34px 32px !important;margin:0 !important;
  color:var(--text) !important;min-height:0 !important;
}
.pay-tepass-owned .tepass_top_left,
.pay-tepass-owned .tepass_top_right{display:none !important}
.pay-tepass-owned .tepass_content{
  color:var(--text-2) !important;font-size:14.5px !important;
  line-height:1.9 !important;word-break:break-all;
}
.pay-tepass-owned .tepass_content a{color:var(--accent) !important}
.pay-tepass-owned .tips{color:var(--text-3) !important;font-size:12.5px !important;margin-top:14px}
.pay-tepass-owned .tips a{color:var(--accent) !important;text-decoration:none}

/* ============ 评论区 ============ */
.comments-wall{column-count:3;column-gap:14px}
.cmt{
  break-inside:avoid;margin-bottom:12px;padding:14px 16px;
  background:var(--card);border:1px solid var(--line);border-radius:12px;
  transition:.15s;
}
.cmt:hover{border-color:var(--line-3);transform:translateY(-1px)}
.c-name{font-weight:700;font-size:13.5px;color:var(--accent)}
.c-time{font-size:11px;color:var(--text-3);margin-left:8px}
.c-body{font-size:13.5px;color:var(--text-2);margin-top:4px;line-height:1.65;word-break:break-word}
.c-body p{margin:0}
.page-nav{margin-top:18px;font-size:13.5px}
.page-nav ol,.page-nav ul{list-style:none;display:flex;gap:8px;flex-wrap:wrap;padding:0;margin:0}
.page-nav li a,.page-nav li span{display:inline-block;padding:6px 13px;border:1px solid var(--line-2);border-radius:8px;color:var(--text-2)}
.page-nav li.current a,.page-nav li.current span{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}

/* ============ 评论表单 ============ */
.respond{
  margin-top:32px;padding:24px;
  background:var(--card);border:1px solid var(--line-2);border-radius:var(--radius-l);
}
.respond-title{font-size:17px;font-weight:800;color:var(--text);margin-bottom:14px}
.respond textarea{
  font-family:var(--font);font-size:14px;color:var(--text);
  background:var(--card-2);border:1px solid var(--line-2);border-radius:10px;
  padding:11px 14px;width:100%;outline:none;transition:.15s;
}
.respond textarea:focus{border-color:var(--accent)}
.respond textarea{min-height:120px;resize:vertical}
.respond .submit{
  margin-top:12px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:var(--accent-ink);border:none;border-radius:10px;
  font-family:var(--font);font-size:14px;font-weight:700;
  padding:12px 26px;cursor:pointer;transition:.18s;
}
.respond .submit:hover{box-shadow:0 8px 26px rgba(60,226,192,.28);transform:translateY(-1px)}

/* ============ 文章页 fallback ============ */
.post{padding:40px 0;max-width:780px;margin:0 auto}
.post-title{font-size:clamp(1.6rem,3.6vw,2.2rem);font-weight:800;line-height:1.3;margin-bottom:14px}
.post-meta{font-size:13px;color:var(--text-3);margin-bottom:24px}
.post-content{font-size:15.5px;line-height:1.85;color:var(--text-2)}
.post-content h2{font-size:1.5rem;font-weight:800;color:var(--text);margin:30px 0 14px}
.post-content h3{font-size:1.2rem;font-weight:700;color:var(--text);margin:24px 0 10px}
.post-content p{margin-bottom:14px}
.post-content img{border-radius:11px;margin:14px 0}
.post-content blockquote{
  border-left:3px solid var(--accent);padding:8px 16px;
  background:var(--card);border-radius:0 10px 10px 0;
  color:var(--text-2);margin:16px 0;
}
.post-content code{font-family:var(--mono);background:var(--card-2);padding:2px 6px;border-radius:5px;font-size:13px;color:var(--accent)}
.post-content pre{background:var(--card);padding:16px;border-radius:11px;overflow:auto;margin:16px 0}
.post-content pre code{background:transparent;padding:0;color:var(--text)}
.post-content table{width:100%;border-collapse:collapse;margin:16px 0}
.post-content th,.post-content td{border:1px solid var(--line-2);padding:9px 12px;text-align:left;font-size:14px}
.post-content th{background:var(--card-2);color:var(--text);font-weight:700}
.post-content ul,.post-content ol{padding-left:24px;margin-bottom:14px}
.post-content li{margin-bottom:6px}

/* ============ footer ============ */
.footer{
  position:relative;z-index:1;
  border-top:1px solid var(--line);
  padding:30px 0 36px;
  color:var(--text-3);font-size:13px;text-align:center;
}
.footer a{color:var(--text-2);margin:0 8px}
.footer a:hover{color:var(--accent)}

/* ============ 响应式 ============ */
@media(max-width:880px){
  .pay-grid{grid-template-columns:1fr}
  .comments-wall{column-count:2}
  .hero{padding:60px 0 44px}
}
@media(max-width:560px){
  .comments-wall{column-count:1}
  .nav-links{gap:12px}
  .nav-sub{display:none}
  .uname{display:none}
  .btn-auth{padding:7px 12px;font-size:12.5px}
  .hero{padding:46px 0 38px}
  .hero-meta{gap:8px}
  .meta-chip{padding:7px 12px;font-size:12.5px}
  .notice{padding:20px 18px}
  .intro-card{padding:20px 18px}
  .rule{padding:14px 16px;gap:12px}
  .pay-box{padding:30px 22px 28px}
  section{padding:36px 0}
}