/*
Theme Name: JCVPN Flagship
Theme URI: https://jichangvpn.top/
Author: Muse
Description: 极简编辑风旗舰主题：首页即旗舰长文，左侧目录，纸白底墨字。零框架，极速。
Version: 1.0.0
License: GNU General Public License v2 or later
Text Domain: jcvpn-flagship
*/

:root{
  --paper:#FDFCFB;
  --card:#FFFFFF;
  --ink:#1C1917;
  --ink-soft:#44403C;
  --muted:#78716C;
  --faint:#A8A29E;
  --line:#E7E5E4;
  --line-soft:#F0EDEA;
  --accent:#0F766E;
  --accent-soft:#EFFDF9;
  --accent-line:#A7E8DC;
  --green:#15803D;
  --green-soft:#F0FDF4;
  --radius:10px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --content-w:740px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{
  font-family:var(--font);
  background:var(--paper);
  color:var(--ink);
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}

/* ---------- 顶栏 ---------- */
.site-nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:60px;
  background:rgba(253,252,251,.88);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-soft);
}
.nav-inner{
  max-width:1120px;height:60px;margin:0 auto;padding:0 20px;
  display:flex;align-items:center;justify-content:space-between;
}
.brand{display:inline-flex;align-items:center;gap:9px;font-size:18px;font-weight:800;color:var(--ink);letter-spacing:.5px}
.brand:hover{text-decoration:none}
.brand-mark{flex:none;display:block}
.brand em{font-style:normal;color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{font-size:14.5px;color:var(--ink-soft);font-weight:500}
.nav-links a:hover{color:var(--accent);text-decoration:none}
.nav-cta{
  background:var(--accent);color:#fff!important;
  padding:8px 18px;border-radius:99px;font-size:14px!important;font-weight:700!important;
}
.nav-cta:hover{background:#0B5B52;text-decoration:none}
@media(max-width:640px){.nav-links a:not(.nav-cta){display:none}}

/* ---------- Hero ---------- */
.hero{
  padding:118px 20px 44px;text-align:center;
  max-width:820px;margin:0 auto;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;font-weight:600;color:var(--green);
  background:var(--green-soft);border:1px solid #BBF7D0;
  padding:5px 14px;border-radius:99px;margin-bottom:20px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--green);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{
  font-size:clamp(28px,4.6vw,42px);
  font-weight:800;line-height:1.35;letter-spacing:-.5px;
  margin-bottom:16px;
}
.hero .sub{font-size:16.5px;color:var(--muted);max-width:620px;margin:0 auto 26px;line-height:1.75}
.hero-meta{
  display:flex;justify-content:center;gap:18px;flex-wrap:wrap;
  font-size:13.5px;color:var(--faint);margin-bottom:28px;
}
.hero-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}
.btn{
  display:inline-block;padding:13px 32px;border-radius:99px;
  font-size:16px;font-weight:700;transition:transform .15s,box-shadow .15s;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#14B8A6 0%,#0F766E 60%,#0C5F54 100%);
  color:#fff;
  box-shadow:0 8px 26px rgba(15,118,110,.38),inset 0 1px 0 rgba(255,255,255,.3),inset 0 -2px 6px rgba(0,0,0,.12);
  animation:ringPulse 2.4s ease-out infinite;
}
/* 流光扫过 */
.btn-primary::before{
  content:"";position:absolute;top:0;bottom:0;left:-70%;width:45%;
  background:linear-gradient(105deg,transparent,rgba(255,255,255,.45),transparent);
  transform:skewX(-20deg);
  animation:btnShine 3.2s ease-in-out infinite;pointer-events:none;
}
@keyframes btnShine{0%{left:-70%}55%,100%{left:130%}}
/* 外圈呼吸光环：shadow 扩散，不占布局不溢出 */
@keyframes ringPulse{
  0%{box-shadow:0 8px 26px rgba(15,118,110,.38),inset 0 1px 0 rgba(255,255,255,.3),0 0 0 0 rgba(20,184,166,.45)}
  70%{box-shadow:0 8px 26px rgba(15,118,110,.38),inset 0 1px 0 rgba(255,255,255,.3),0 0 0 14px rgba(20,184,166,0)}
  100%{box-shadow:0 8px 26px rgba(15,118,110,.38),inset 0 1px 0 rgba(255,255,255,.3),0 0 0 14px rgba(20,184,166,0)}
}
.btn-primary:hover{
  background:linear-gradient(135deg,#0F766E 0%,#0C5F54 100%);color:#fff;
  transform:translateY(-2px);animation-play-state:paused;
  box-shadow:0 14px 34px rgba(15,118,110,.5),inset 0 1px 0 rgba(255,255,255,.3);
}
.btn-ghost{background:var(--card);color:var(--ink);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- 主体：目录 + 正文 ---------- */
.flagship-wrap{
  max-width:1120px;margin:0 auto;padding:10px 20px 80px;
  display:grid;grid-template-columns:230px minmax(0,var(--content-w));gap:48px;
  justify-content:center;align-items:start;
}
/* 目录 */
.toc{
  position:sticky;top:84px;
  max-height:calc(100vh - 110px);overflow:auto;
  font-size:13.5px;padding:4px 0;
}
.toc-title{font-size:12px;font-weight:700;color:var(--faint);letter-spacing:1.5px;margin-bottom:12px}
.toc a{
  display:block;color:var(--muted);padding:6px 0 6px 14px;
  border-left:2px solid var(--line-soft);line-height:1.5;
  transition:border-color .15s,color .15s;
}
.toc a:hover{color:var(--accent);text-decoration:none}
.toc a.active{color:var(--accent);border-left-color:var(--accent);font-weight:600}
@media(max-width:1023px){.flagship-wrap{grid-template-columns:minmax(0,var(--content-w))}.toc{display:none}}

/* 正文排版 */
.flagship-body{min-width:0}
.flagship-body > *:first-child{margin-top:0}
.flagship-body p{margin:0 0 1.35em;color:var(--ink-soft)}
.flagship-body h2{
  font-size:25px;font-weight:800;letter-spacing:-.3px;line-height:1.4;
  margin:2.2em 0 .8em;padding-top:.4em;
  scroll-margin-top:84px;
}
.flagship-body h2:not(:first-child){border-top:1px solid var(--line-soft);padding-top:1.4em}
.flagship-body h3{font-size:19px;font-weight:700;margin:1.8em 0 .7em;scroll-margin-top:84px}
.flagship-body h4{font-size:17px;font-weight:700;margin:1.5em 0 .6em}
.flagship-body ul,.flagship-body ol{margin:0 0 1.35em 1.4em;color:var(--ink-soft)}
.flagship-body li{margin-bottom:.5em}
.flagship-body li::marker{color:var(--accent);font-weight:700}
.flagship-body blockquote{
  margin:0 0 1.5em;padding:14px 20px;
  border-left:3px solid var(--accent);background:var(--accent-soft);
  border-radius:0 var(--radius) var(--radius) 0;color:var(--ink-soft);
}
.flagship-body blockquote p{margin:0}
.flagship-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.88em;
  background:#F5F4F2;padding:2px 7px;border-radius:5px;color:var(--accent);
}
.flagship-body pre{
  background:#1C1917;color:#E7E5E4;padding:18px 20px;border-radius:var(--radius);
  overflow:auto;margin:0 0 1.5em;font-size:14px;line-height:1.65;
}
.flagship-body pre code{background:none;color:inherit;padding:0}
.flagship-body table{width:100%;border-collapse:collapse;margin:0 0 1.6em;font-size:15px}
.flagship-body th,.flagship-body td{padding:11px 14px;border:1px solid var(--line);text-align:left}
.flagship-body th{background:#F8F6F4;font-weight:700;white-space:nowrap}
.flagship-body tr:nth-child(even) td{background:#FDFCFA}
.flagship-body img{border-radius:var(--radius);margin:1.4em auto}
.flagship-body strong{color:var(--ink)}
.flagship-body hr{border:none;border-top:1px solid var(--line-soft);margin:2.5em 0}

/* 结论框 */
.verdict{
  background:var(--card);border:1.5px solid var(--accent-line);border-radius:14px;
  padding:26px 28px;margin:2em 0;
}
.verdict-title{font-size:15px;font-weight:800;color:var(--accent);letter-spacing:1px;margin-bottom:10px}
.verdict p:last-child{margin-bottom:0}

/* 推荐卡：干净列表风 */
.rec-list{margin:1.6em 0;display:flex;flex-direction:column;gap:14px}
.rec{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:22px 24px;display:flex;gap:18px;align-items:flex-start;
  transition:border-color .2s,box-shadow .2s;
}
.rec:hover{border-color:var(--accent-line);box-shadow:0 8px 28px rgba(15,118,110,.08)}
.rec-rank{
  flex:none;width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:800;color:#fff;background:var(--accent);
}
.rec:nth-child(2) .rec-rank{background:#14B8A6}
.rec:nth-child(3) .rec-rank{background:#78716C}
.rec-body{flex:1;min-width:0}
.rec-name{font-size:18px;font-weight:800;margin-bottom:4px}
.rec-name a{color:var(--ink)}
.rec-name a:hover{color:var(--accent)}
.rec-tag{
  display:inline-block;font-size:12px;font-weight:700;color:var(--accent);
  background:var(--accent-soft);padding:2px 10px;border-radius:99px;margin-left:8px;vertical-align:2px;
}
.rec-desc{font-size:14.5px;color:var(--muted);margin:6px 0 12px;line-height:1.7}
.rec-go{
  display:inline-block;font-size:14px;font-weight:700;color:#fff;background:var(--ink);
  padding:9px 22px;border-radius:99px;
}
.rec-go:hover{background:var(--accent);color:#fff;text-decoration:none}
@media(max-width:560px){.rec{padding:18px}.rec-rank{width:38px;height:38px;font-size:16px}}

/* 传送门行 */
.portal{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  background:var(--ink);color:#fff;border-radius:14px;padding:20px 24px;margin:2em 0;
}
.portal span{font-size:15.5px;font-weight:600}
.portal a{
  background:var(--accent);color:#fff;font-weight:700;font-size:15px;
  padding:11px 28px;border-radius:99px;white-space:nowrap;
}
.portal a:hover{background:#0B5B52;text-decoration:none}

/* FAQ */
.faq{margin:1.6em 0;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;text-align:left;background:none;border:none;cursor:pointer;
  font-family:var(--font);font-size:16.5px;font-weight:700;color:var(--ink);
  padding:18px 40px 18px 0;position:relative;
}
.faq-q::after{
  content:"+";position:absolute;right:4px;top:16px;
  font-size:22px;font-weight:400;color:var(--accent);transition:transform .2s;
}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 0 20px;color:var(--ink-soft);font-size:15.5px}
.faq-a-inner p{margin-bottom:.8em}

/* 文末 */
.article-end{margin-top:3em;padding-top:2em;border-top:1px solid var(--line-soft)}
.share-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap;font-size:14px;color:var(--muted)}
.back-top{
  position:fixed;right:22px;bottom:26px;z-index:90;
  width:46px;height:46px;border-radius:50%;border:1px solid var(--line);
  background:rgba(255,255,255,.92);color:var(--ink);font-size:19px;cursor:pointer;
  display:none;align-items:center;justify-content:center;
  box-shadow:0 4px 16px rgba(0,0,0,.08);
}
.back-top.show{display:flex}
.back-top:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line-soft);padding:38px 20px 46px;text-align:center}
.footer-inner{max-width:720px;margin:0 auto}
.footer-brand{font-size:16px;font-weight:800;margin-bottom:8px}
.footer-brand em{font-style:normal;color:var(--accent)}
.footer-desc{font-size:13.5px;color:var(--muted);margin-bottom:14px;line-height:1.7}
.footer-links{display:flex;justify-content:center;gap:22px;flex-wrap:wrap;margin-bottom:16px}
.footer-links a{font-size:13.5px;color:var(--muted)}
.footer-links a:hover{color:var(--accent)}
.copyright{font-size:12.5px;color:var(--faint)}

/* ---------- 内页（周更文章） ---------- */
.single-wrap{max-width:var(--content-w);margin:0 auto;padding:104px 20px 80px}
.single-hero{text-align:center;margin-bottom:38px}
.single-hero h1{font-size:clamp(24px,4vw,34px);font-weight:800;line-height:1.4;letter-spacing:-.3px;margin-bottom:14px}
.single-meta{font-size:13.5px;color:var(--faint);display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.single-body{font-size:17px;line-height:1.85;color:var(--ink-soft)}
.single-body p{margin-bottom:1.35em}
.single-body h2{font-size:23px;font-weight:800;margin:2em 0 .8em;color:var(--ink);scroll-margin-top:84px}
.single-body h3{font-size:18px;font-weight:700;margin:1.6em 0 .7em;color:var(--ink)}
.single-body ul,.single-body ol{margin:0 0 1.35em 1.4em}
.single-body li{margin-bottom:.45em}
.single-body img{border-radius:var(--radius);margin:1.4em auto}
.single-body blockquote{margin:0 0 1.5em;padding:14px 20px;border-left:3px solid var(--accent);background:var(--accent-soft);border-radius:0 var(--radius) var(--radius) 0}
.guide-link{
  display:block;text-align:center;margin:2.5em 0;padding:22px;
  background:var(--accent-soft);border:1.5px dashed var(--accent-line);border-radius:14px;
  font-size:16px;font-weight:700;color:var(--accent);
}
.guide-link:hover{text-decoration:none;background:#FFEEDF}
.post-nav{display:flex;justify-content:space-between;gap:16px;margin-top:3em;padding-top:1.6em;border-top:1px solid var(--line-soft);font-size:14.5px}
.post-nav a{color:var(--muted);max-width:45%}
.post-nav a:hover{color:var(--accent)}

/* 列表页兜底 */
.list-wrap{max-width:var(--content-w);margin:0 auto;padding:104px 20px 80px}
.post-item{padding:26px 0;border-bottom:1px solid var(--line-soft)}
.post-item h2{font-size:21px;font-weight:800;margin-bottom:8px;line-height:1.45}
.post-item h2 a{color:var(--ink)}
.post-item h2 a:hover{color:var(--accent);text-decoration:none}
.post-item .excerpt{font-size:15px;color:var(--muted);margin-bottom:8px}
.post-item .meta{font-size:13px;color:var(--faint)}

/* 打印 */
@media print{.site-nav,.toc,.back-top,.portal{display:none}.flagship-wrap{display:block}}