/*
Theme Name: fanqie-tech-guonei
Theme URI: https://guoneivpn.com/
Author: 番茄网络团队
Description: guoneivpn.com 重构主题 —— 暗黑科技风设计系统，11 区块首页、统一专题模板、实体标签内链体系。零 JS、单 CSS、移动优先。
Version: 1.0
License: GPL-2.0-or-later
Text Domain: fanqie-tech-guonei
*/

/* ============ 设计令牌（spec 48/49） ============ */
:root{
  --bg:#050816; --bg2:#0b1020; --panel:#0e1428;
  --glass:rgba(255,255,255,.045); --line:rgba(148,163,184,.16); --line2:rgba(99,102,241,.32);
  --txt:#e6eaf2; --txt2:#94a3b8; --txt3:#64748b;
  --acc:#4f46e5; --acc2:#06b6d4; --grad:linear-gradient(90deg,#4f46e5,#06b6d4);
  --ok:#34d399; --warn:#fbbf24;
  --r:14px; --r-s:10px;
  --w:1180px;
  --shadow:0 10px 40px rgba(2,6,23,.5);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:72px}
body{background:var(--bg);color:var(--txt);font:16px/1.75 var(--font);
  -webkit-font-smoothing:antialiased;overflow-x:hidden}
/* 网格 + 辉光背景层（纯CSS，无动画库） */
body::before{content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(900px 480px at 78% -8%,rgba(79,70,229,.16),transparent 62%),
    radial-gradient(700px 420px at 8% 12%,rgba(6,182,212,.10),transparent 60%),
    linear-gradient(rgba(148,163,184,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(148,163,184,.05) 1px,transparent 1px);
  background-size:auto,auto,44px 44px,44px 44px}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
.wrap{max-width:var(--w);margin:0 auto;padding:0 20px}

/* ============ Header（spec 51） ============ */
.hd{position:sticky;top:0;z-index:50;background:rgba(5,8,22,.78);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.hd .wrap{display:flex;align-items:center;gap:26px;height:60px;max-width:var(--w)}
.logo{display:flex;align-items:center;gap:9px;font-weight:800;font-size:19px;letter-spacing:.5px;white-space:nowrap}
.logo i{width:26px;height:26px;border-radius:8px;background:var(--grad);display:inline-block;position:relative;flex:none}
.logo i::after{content:"";position:absolute;inset:7px;border-radius:50%;border:2.5px solid #fff;opacity:.9}
.logo b{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.nav{display:flex;align-items:center;gap:4px;flex:1}
.nav a{padding:7px 13px;border-radius:999px;color:var(--txt2);font-size:15px;white-space:nowrap;transition:color .15s,background .15s}
.nav a:hover{color:var(--txt);background:var(--glass)}
.hd-cta{display:flex;gap:10px;align-items:center;flex:none}
.hd-cta .ghost{padding:7px 15px;border:1px solid var(--line2);border-radius:999px;color:#c7d2fe;font-size:14px}
.hd-cta .solid{padding:8px 18px;border-radius:999px;background:var(--grad);color:#fff;font-size:14px;font-weight:600;
  box-shadow:0 4px 18px rgba(79,70,229,.35);transition:transform .15s,box-shadow .15s}
.hd-cta .solid:hover{transform:translateY(-1px);box-shadow:0 6px 22px rgba(6,182,212,.4)}
#nv,.burger{display:none}
@media(max-width:860px){
  .burger{display:block;order:3;width:38px;height:38px;border:1px solid var(--line);border-radius:10px;cursor:pointer;
    display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;margin-left:auto}
  .burger i{width:18px;height:2px;background:var(--txt);border-radius:2px;transition:transform .2s}
  .nav{position:absolute;top:60px;left:0;right:0;background:var(--bg2);border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;padding:10px 16px 16px;gap:2px;display:none}
  .nav a{padding:11px 12px;font-size:16px;border-radius:10px}
  #nv:checked ~ .nav{display:flex}
  #nv:checked ~ .burger i:nth-child(1){transform:translateY(7px) rotate(45deg)}
  #nv:checked ~ .burger i:nth-child(2){opacity:0}
  #nv:checked ~ .burger i:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .hd .wrap{gap:12px}
  .hd-cta .ghost{display:none}
}

/* ============ 通用组件（spec 76） ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 28px;border-radius:999px;
  font-weight:600;font-size:16px;transition:transform .15s,box-shadow .15s,border-color .15s}
.btn-p{background:var(--grad);color:#fff;box-shadow:0 6px 24px rgba(79,70,229,.4)}
.btn-p:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(6,182,212,.45)}
.btn-g{border:1px solid var(--line2);color:#c7d2fe;background:var(--glass)}
.btn-g:hover{border-color:#6366f1;background:rgba(99,102,241,.12)}
.pill{display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:999px;font-size:13px;
  border:1px solid var(--line2);color:#a5b4fc;background:rgba(79,70,229,.12)}
.sec{padding:64px 0}
.sec-hd{text-align:center;margin-bottom:40px}
.sec-hd .kicker{display:inline-block;margin-bottom:14px}
.sec-hd h2{font-size:clamp(24px,3.4vw,34px);line-height:1.3;font-weight:800}
.sec-hd p{color:var(--txt2);margin-top:12px;max-width:640px;margin-left:auto;margin-right:auto;font-size:15.5px}
.grid{display:grid;gap:18px}
.grid > *{min-width:0}
.acard a{display:block}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--glass);border:1px solid var(--line);border-radius:var(--r);padding:26px;
  transition:border-color .2s,transform .2s,background .2s}
.card:hover{border-color:var(--line2);transform:translateY(-3px);background:rgba(99,102,241,.07)}
.card h3{font-size:17.5px;margin-bottom:8px}
.card h3 a:hover{color:#a5b4fc}
.card p{color:var(--txt2);font-size:14.5px}
.ico{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:21px;margin-bottom:14px;background:rgba(79,70,229,.16);border:1px solid var(--line2)}
.more{color:#818cf8;font-size:14px}
.more:hover{color:#a5b4fc}

/* ============ 面包屑（spec 57） ============ */
.crumbs{padding:18px 0 0;font-size:13.5px;color:var(--txt3)}
.crumbs a{color:var(--txt2)}
.crumbs a:hover{color:#a5b4fc}
.crumbs span[aria-current]{color:var(--txt2)}

/* ============ Hero ============ */
.hero{padding:84px 0 72px;position:relative}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(30px,5vw,50px);line-height:1.22;font-weight:900;letter-spacing:.5px}
.hero h1 b{background:linear-gradient(90deg,#818cf8,#22d3ee);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero .sub{margin:20px 0 30px;color:var(--txt2);font-size:17px;max-width:560px}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap}
.hero .trust{margin-top:26px;display:flex;gap:22px;flex-wrap:wrap;color:var(--txt3);font-size:13.5px}
.hero .trust b{color:var(--txt);font-size:17px;display:block;line-height:1.3}
/* 全球节点视觉：纯 CSS 网络 */
.net{position:relative;min-height:340px;border:1px solid var(--line);border-radius:20px;
  background:linear-gradient(180deg,rgba(11,16,32,.9),rgba(5,8,22,.4));padding:28px;overflow:hidden}
.net::after{content:"";position:absolute;inset:0;
  background:radial-gradient(420px 200px at 50% 100%,rgba(6,182,212,.14),transparent 70%);pointer-events:none}
.net .region{position:relative;z-index:1;display:flex;flex-direction:column;gap:14px;width:132px}
.net .rg{padding:8px 0;text-align:center;border:1px solid var(--line);border-radius:999px;font-size:13.5px;color:var(--txt2);
  background:rgba(255,255,255,.03);position:relative}
.net .rg::after{content:"";position:absolute;right:-58px;top:50%;width:58px;height:1.5px;
  background:linear-gradient(90deg,rgba(99,102,241,.7),rgba(6,182,212,.9))}
.net .hub{position:relative;z-index:1;margin:22px 0 0 auto;width:210px;text-align:center;padding:16px 0;
  border:1px solid rgba(6,182,212,.5);border-radius:16px;background:rgba(6,182,212,.08);
  box-shadow:0 0 34px rgba(6,182,212,.18) inset;font-weight:700;font-size:15px}
.net .hub small{display:block;font-weight:400;color:var(--txt2);font-size:12.5px;margin-top:4px}
.net .stat{position:relative;z-index:1;margin-top:20px;display:grid;grid-template-columns:repeat(3,1fr);gap:10px;text-align:center}
.net .stat b{display:block;font-size:16px;color:#67e8f9}
.net .stat span{font-size:12px;color:var(--txt3)}

/* ============ 场景入口（Section 3） ============ */
.scene{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.scene a{border:1px solid var(--line);border-radius:var(--r);padding:22px 12px;text-align:center;
  background:var(--glass);transition:border-color .2s,background .2s,transform .2s}
.scene a:hover{border-color:var(--line2);background:rgba(99,102,241,.09);transform:translateY(-3px)}
.scene .em{font-size:26px;display:block;margin-bottom:10px}
.scene b{font-size:15px}
.scene span{display:block;color:var(--txt3);font-size:12.5px;margin-top:4px}

/* ============ 实体卡片（App/游戏/地区） ============ */
.entity{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.entity a{border:1px solid var(--line);border-radius:var(--r-s);padding:16px 8px;text-align:center;
  background:var(--glass);font-size:14.5px;transition:border-color .2s,background .2s}
.entity a:hover{border-color:var(--line2);background:rgba(99,102,241,.09);color:#c7d2fe}
.entity a b{display:block;font-size:15px}
.entity a span{color:var(--txt3);font-size:12px}

/* ============ 原因卡（Section 8） ============ */
.reason p{font-size:14.5px}
.reason .ico{margin-bottom:12px}

/* ============ 产品转化区（Section 9） ============ */
.product{padding:70px 0}
.product .box{border:1px solid var(--line2);border-radius:22px;padding:52px 44px;text-align:center;position:relative;overflow:hidden;
  background:linear-gradient(160deg,rgba(79,70,229,.16),rgba(6,182,212,.07) 55%,transparent)}
.product h2{font-size:clamp(24px,3.4vw,32px);font-weight:900}
.product .feat{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:30px auto;max-width:860px;text-align:left}
.product .feat div{border:1px solid var(--line);border-radius:var(--r-s);padding:14px 16px;background:rgba(5,8,22,.5);font-size:14px;color:var(--txt2)}
.product .feat b{color:var(--txt);display:block;margin-bottom:2px;font-size:14.5px}

/* ============ FAQ（Section 10） ============ */
.faq{max-width:820px;margin:0 auto}
.faq details{border:1px solid var(--line);border-radius:var(--r-s);background:var(--glass);margin-bottom:12px;overflow:hidden}
.faq summary{cursor:pointer;padding:17px 20px;font-weight:600;font-size:15.5px;list-style:none;display:flex;justify-content:space-between;gap:12px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:#818cf8;font-size:20px;flex:none;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .a{padding:0 20px 17px;color:var(--txt2);font-size:14.5px}

/* ============ 文章卡 ============ */
.acard{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--glass);
  display:flex;flex-direction:column;transition:border-color .2s,transform .2s}
.acard:hover{border-color:var(--line2);transform:translateY(-3px)}
.acard .thumb{aspect-ratio:16/9;width:100%;object-fit:cover;border-radius:0}
.acard .bd{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.acard h3{font-size:15.5px;line-height:1.55}
.acard h3 a:hover{color:#a5b4fc}
.acard .meta{margin-top:auto;color:var(--txt3);font-size:12.5px;display:flex;gap:10px;flex-wrap:wrap}
.acard .meta .cat{color:#818cf8}

/* ============ 文章页（spec 23） ============ */
.article{max-width:780px;margin:0 auto;padding:26px 20px 40px}
.article .hd-b{margin-bottom:26px}
.article h1{font-size:clamp(24px,3.6vw,34px);line-height:1.35;font-weight:800;margin:14px 0 12px}
.ameta{display:flex;gap:14px;flex-wrap:wrap;color:var(--txt3);font-size:13px;align-items:center}
.ameta .av{width:26px;height:26px;border-radius:50%;background:var(--grad);display:inline-flex;align-items:center;justify-content:center;font-size:12px;color:#fff;flex:none}
.qa{border:1px solid rgba(6,182,212,.35);border-left:3px solid var(--acc2);border-radius:var(--r-s);
  background:rgba(6,182,212,.06);padding:16px 18px;margin:22px 0}
.qa b{display:block;color:#67e8f9;font-size:13.5px;margin-bottom:6px;letter-spacing:1px}
.qa p{color:var(--txt);font-size:15px}
.toc{border:1px solid var(--line);border-radius:var(--r);background:var(--glass);padding:18px 22px;margin:24px 0}
.toc b{font-size:14px;color:var(--txt2);letter-spacing:2px}
.toc ol{margin-top:10px;counter-reset:toc}
.toc li{margin:6px 0;counter-increment:toc;font-size:14.5px}
.toc li::before{content:counter(toc) ". ";color:#818cf8;font-weight:600}
.toc li.l3{padding-left:20px;font-size:13.5px}
.toc a{color:var(--txt2)}
.toc a:hover{color:#a5b4fc}
.entry{font-size:16px;color:#d3d9e6}
.entry h2{font-size:22px;margin:38px 0 14px;padding-left:12px;border-left:3px solid var(--acc);font-weight:700;line-height:1.4}
.entry h3{font-size:17.5px;margin:26px 0 10px;color:#c7d2fe;font-weight:700}
.entry p{margin:12px 0}
.entry a{color:#7dd3fc;border-bottom:1px solid rgba(125,211,252,.3)}
.entry a:hover{color:#bae6fd}
.entry ul,.entry ol{margin:12px 0 12px 4px}
.entry ul li{padding-left:20px;position:relative;margin:7px 0;list-style:none}
.entry ul li::before{content:"";position:absolute;left:4px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--acc2)}
.entry ol{padding-left:24px}
.entry ol li{margin:7px 0;list-style:decimal}
.entry ol li::marker{color:#818cf8}
.entry img{border-radius:var(--r-s);margin:16px auto}
.entry blockquote{border-left:3px solid var(--line2);background:var(--glass);border-radius:0 var(--r-s) var(--r-s) 0;padding:12px 18px;color:var(--txt2);margin:16px 0}
.entry table{width:100%;border-collapse:collapse;margin:16px 0;font-size:14px}
.entry th,.entry td{border:1px solid var(--line);padding:9px 12px;text-align:left}
.entry th{background:rgba(99,102,241,.12);color:#c7d2fe}
.entry strong{color:#e2e8f0}
.ptags{display:flex;gap:10px;flex-wrap:wrap;margin:34px 0 0}
.ptags a{padding:5px 14px;border:1px solid var(--line);border-radius:999px;font-size:13px;color:var(--txt2);transition:border-color .15s,color .15s}
.ptags a:hover{border-color:var(--line2);color:#c7d2fe}
.pnav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:30px 0}
.pnav a{border:1px solid var(--line);border-radius:var(--r-s);padding:14px 16px;color:var(--txt2);font-size:14px}
.pnav a:hover{border-color:var(--line2)}
.pnav .nx{text-align:right}
.pnav small{display:block;color:var(--txt3);font-size:12px;margin-bottom:4px}
.related{margin-top:46px}
.related h2{font-size:20px;margin-bottom:18px;font-weight:800}
.dlbox{margin-top:38px;border:1px solid var(--line2);border-radius:var(--r);padding:24px 26px;display:flex;gap:18px;align-items:center;justify-content:space-between;flex-wrap:wrap;
  background:linear-gradient(120deg,rgba(79,70,229,.14),rgba(6,182,212,.06))}
.dlbox h3{font-size:17px}
.dlbox p{color:var(--txt2);font-size:13.5px;margin-top:4px}

/* ============ 专题 Hub 页 / 归档页 ============ */
.hub{max-width:var(--w);margin:0 auto;padding:10px 20px 56px}
.hub .hero-b{padding:30px 0 8px;max-width:820px}
.hub h1{font-size:clamp(26px,4vw,38px);font-weight:900;margin:10px 0 12px;line-height:1.3}
.hub .lede{color:var(--txt2);font-size:15.5px}
.hub-sec{margin-top:44px}
.hub-sec > h2{font-size:21px;font-weight:800;margin-bottom:18px;padding-left:12px;border-left:3px solid var(--acc)}
.hub .entry{max-width:none;padding:0}
.tagbar{display:flex;gap:10px;flex-wrap:wrap}
.tagbar a{padding:8px 16px;border:1px solid var(--line);border-radius:999px;font-size:14px;color:var(--txt2);background:var(--glass);transition:border-color .15s,color .15s}
.tagbar a:hover{border-color:var(--line2);color:#c7d2fe}

/* ============ 侧栏（文章页） ============ */
.with-side{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:34px;max-width:var(--w);margin:0 auto;padding:26px 20px 50px}
.with-side .article{max-width:none;padding:0}
.side{display:flex;flex-direction:column;gap:18px}
.side .box{border:1px solid var(--line);border-radius:var(--r);background:var(--glass);padding:20px}
.side h3{font-size:15px;margin-bottom:12px;color:#c7d2fe}
.side ul li{margin:9px 0;font-size:14px}
.side ul li a{color:var(--txt2);line-height:1.6}
.side ul li a:hover{color:#a5b4fc}
.side .tagbar a{padding:5px 12px;font-size:13px}
.dl-mini{border:1px solid var(--line2);border-radius:var(--r);padding:20px;background:linear-gradient(150deg,rgba(79,70,229,.18),rgba(6,182,212,.07))}
.dl-mini b{font-size:16px}
.dl-mini p{color:var(--txt2);font-size:13.5px;margin:8px 0 14px}
.dl-mini a{display:block;text-align:center;padding:10px;border-radius:999px;background:var(--grad);color:#fff;font-weight:600;font-size:14px}

/* ============ 分页 ============ */
.pagi{display:flex;gap:8px;justify-content:center;margin:40px 0 10px;flex-wrap:wrap}
.pagi .page-numbers{padding:9px 16px;border:1px solid var(--line);border-radius:10px;font-size:14px;color:var(--txt2)}
.pagi .page-numbers.current{background:var(--grad);color:#fff;border-color:transparent}
.pagi .page-numbers:hover:not(.current){border-color:var(--line2)}

/* ============ Footer（spec 52） ============ */
.ft{border-top:1px solid var(--line);margin-top:60px;background:rgba(5,8,22,.6)}
.ft .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding:48px 0 40px}
.ft .brand p{color:var(--txt2);font-size:13.5px;margin-top:12px;max-width:300px}
.ft h4{font-size:14.5px;margin-bottom:14px;color:#c7d2fe}
.ft ul li{margin:8px 0}
.ft ul a{color:var(--txt2);font-size:13.5px}
.ft ul a:hover{color:#a5b4fc}
.ft .bar{border-top:1px solid var(--line);padding:18px 0;color:var(--txt3);font-size:13px;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}

/* ============ 404 ============ */
.p404{text-align:center;padding:110px 20px 90px}
.p404 .code{font-size:clamp(64px,12vw,120px);font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1.1}
.p404 h1{font-size:22px;margin:14px 0 10px}
.p404 p{color:var(--txt2);margin-bottom:28px}
.p404 .cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ============ 响应式（spec 77） ============ */
@media(max-width:1020px){
  .g4{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
  .entity{grid-template-columns:repeat(4,1fr)}
  .scene{grid-template-columns:repeat(3,1fr)}
  .with-side{grid-template-columns:1fr}
  .side{order:2}
  .ft .cols{grid-template-columns:1fr 1fr}
  .hero .wrap{grid-template-columns:1fr;gap:40px}
  .net{min-height:300px}
}
@media(max-width:600px){
  .g2,.g3,.g4{grid-template-columns:1fr}
  .entity{grid-template-columns:repeat(3,1fr)}
  .scene{grid-template-columns:repeat(2,1fr)}
  .hero{padding:56px 0 50px}
  .sec{padding:48px 0}
  .product .box{padding:36px 22px}
  .product .feat{grid-template-columns:1fr}
  .pnav{grid-template-columns:1fr}
  .pnav .nx{text-align:left}
  .ft .cols{grid-template-columns:1fr;gap:26px}
  .hero h1{font-size:30px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto}
}