/* ============================================================
   LVCHA VPN mirror — style.css
   ============================================================ */
:root{
  --green:#1faa59; --green-dark:#178347; --green-light:#e9f8f0;
  --red:#e5392f; --ink:#1a1f24; --ink2:#3a4148; --muted:#6b7480;
  --bg:#ffffff; --bg-alt:#f6f8f7; --border:#e6eae8;
  --radius:14px; --radius-lg:22px; --shadow:0 6px 24px rgba(20,40,30,.08);
  --shadow-lg:0 18px 50px rgba(20,40,30,.14); --maxw:1180px;
  --accent-strip:#b7a87e;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html,body{max-width:100%;overflow-x:hidden}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,"Noto Sans SC",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased;font-size:16px}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
.section{padding:72px 0}
.section-alt{background:var(--bg-alt)}
.section-head{text-align:center;max-width:720px;margin:0 auto 44px}
.section-head h2{font-size:clamp(24px,3.4vw,36px);font-weight:800;letter-spacing:-.01em}
.section-head p{color:var(--muted);margin-top:12px;font-size:17px}
.tag-hot{display:inline-flex;align-items:center;gap:6px;color:var(--green);font-weight:700;font-size:14px;margin-bottom:10px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-weight:700;border-radius:999px;padding:14px 28px;cursor:pointer;border:0;
  transition:transform .15s ease,box-shadow .15s ease,background .15s ease;font-size:16px}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--green);color:#fff;box-shadow:0 8px 20px rgba(31,170,89,.3)}
.btn-primary:hover{background:var(--green-dark)}
.btn-dark{background:var(--ink);color:#fff;padding:18px 30px;border-radius:16px;font-size:17px;width:100%;max-width:420px}
.btn-dark small{display:block;font-weight:500;font-size:13px;opacity:.7}
.btn-dark:hover{background:#000}
.btn-outline{background:#fff;color:var(--ink);border:1px solid var(--border)}

/* ---------- top accent strip + header ---------- */
.top-strip{height:6px;background:var(--accent-strip)}
.header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.9);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.nav-logo{display:flex;align-items:center;font-weight:900;font-size:22px;letter-spacing:.5px;color:var(--ink)}
.nav-logo .dot{color:var(--green)}
.nav-right{display:flex;align-items:center;gap:28px}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{font-weight:600;color:var(--ink2);font-size:15px}
.nav-links a:hover,.nav-links a.active{color:var(--green)}
/* language switcher */
.lang{position:relative}
.lang-btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border);
  background:#fff;border-radius:999px;padding:7px 14px;font-size:14px;font-weight:600;cursor:pointer;color:var(--ink2)}
.lang-menu{position:absolute;right:0;top:115%;background:#fff;border:1px solid var(--border);
  border-radius:12px;box-shadow:var(--shadow);min-width:140px;padding:6px;display:none;z-index:1001}
.lang-menu.open{display:block}
.lang-menu a{display:block;padding:9px 14px;border-radius:8px;font-size:14px;font-weight:600;color:var(--ink2)}
.lang-menu a:hover{background:var(--green-light);color:var(--green-dark)}
.lang-menu a.active{color:var(--green);background:var(--green-light)}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;width:42px;height:42px;font-size:26px;color:var(--ink)}

/* ---------- warning banner ---------- */
.warn{background:#23282d;color:#f4c451;font-size:14px}
.warn .container{display:flex;align-items:center;justify-content:center;gap:14px;
  padding-top:12px;padding-bottom:12px;text-align:center}
.warn .x{cursor:pointer;color:#9aa1a8;font-weight:700;flex:none}
.warn.hide{display:none}

/* ---------- hero ---------- */
.hero{padding:64px 0 40px}
.hero .container{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:var(--green-light);
  color:var(--green-dark);font-weight:700;font-size:14px;padding:8px 16px;border-radius:999px;margin-bottom:22px}
.hero h1{font-size:clamp(34px,5.4vw,60px);font-weight:900;letter-spacing:-.02em;line-height:1.12}
.hero .lead{margin-top:18px;background:var(--bg-alt);border-radius:999px;padding:12px 22px;
  display:inline-block;color:var(--ink2);font-size:15px}
.trust{display:flex;gap:40px;margin:34px 0 30px}
.trust .item{text-align:center}
.trust .ic{width:52px;height:52px;margin:0 auto 8px}
.trust .t{color:var(--red);font-weight:800;font-size:18px}
.trust .s{color:var(--muted);font-size:14px}
.dl-other{margin-top:18px;color:var(--green);font-weight:700;font-size:15px;display:inline-block}
.dl-mini{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;align-items:center}
.dl-mini a{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--border);
  background:#fff;border-radius:10px;padding:9px 14px;font-size:14px;font-weight:600;color:var(--ink2)}
.dl-mini a:hover{border-color:var(--green);color:var(--green)}
.dl-mini .soon{color:var(--muted);font-size:13px}
/* phone mockup (CSS, no external image) */
.phone-wrap{display:flex;justify-content:center}
.phone{width:280px;height:560px;border-radius:42px;background:linear-gradient(160deg,#2a2f36,#11151a);
  padding:14px;box-shadow:var(--shadow-lg);position:relative}
.phone::before{content:"";position:absolute;top:18px;left:50%;transform:translateX(-50%);
  width:120px;height:24px;background:#0c0f13;border-radius:0 0 16px 16px;z-index:2}
.phone .screen{width:100%;height:100%;border-radius:30px;background:linear-gradient(165deg,#eafaf1,#d4f3e1);
  overflow:hidden;position:relative;display:flex;flex-direction:column;align-items:center;padding:48px 18px 18px}
.phone .pill{width:90%;background:#fff;border-radius:14px;box-shadow:0 4px 14px rgba(0,0,0,.06);padding:14px;margin-bottom:12px}
.phone .pill .bar{height:8px;border-radius:6px;background:#e6eae8;margin:6px 0;width:80%}
.phone .pill .bar.s{width:50%}
.phone .conn{width:120px;height:120px;border-radius:50%;background:var(--green);margin:18px auto;
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:18px;
  box-shadow:0 10px 30px rgba(31,170,89,.4)}

/* ---------- referral / promo ---------- */
.promo{background:linear-gradient(135deg,#10331f,#1faa59);color:#fff}
.promo .grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.promo h2{font-size:clamp(24px,3vw,34px);font-weight:800}
.promo p{opacity:.92;margin-top:14px}
.promo .cards{display:grid;gap:16px}
.promo .card{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius);padding:22px}
.promo .card h3{font-size:17px;margin-bottom:6px}
.promo .card p{font-size:14px;margin-top:4px;opacity:.9}

/* ---------- feature grid ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.feat{background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:24px 16px;text-align:center;transition:transform .15s,box-shadow .15s}
.feat:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.feat .ic{width:46px;height:46px;margin:0 auto 12px}
.feat .t{font-weight:700;font-size:15px}

/* ---------- highlight blocks ---------- */
.hl{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:56px 0;border-bottom:1px solid var(--border)}
.hl:nth-child(even) .hl-media{order:-1}
.hl h3{font-size:clamp(22px,2.6vw,30px);font-weight:800;margin:10px 0 14px}
.hl .sub{color:var(--green);font-weight:700;margin-bottom:8px}
.hl p{color:var(--ink2)}
.hl-media{height:260px;border-radius:var(--radius-lg);background:linear-gradient(150deg,var(--green-light),#cdeeda);
  display:flex;align-items:center;justify-content:center;color:var(--green-dark);font-weight:800;font-size:18px}
.hl-media.alt{background:linear-gradient(150deg,#eef2ff,#dbe4ff);color:#3b4fb0}
.hl-media.v{background:linear-gradient(150deg,#fff1e6,#ffe0c2);color:#b96b1e}
.hl-media.g{background:linear-gradient(150deg,#f3eaff,#e3d2ff);color:#7a44c9}

/* ---------- testimonials ---------- */
.testi{max-width:760px;margin:0 auto;text-align:center}
.testi .quote{font-size:19px;color:var(--ink2);line-height:1.8;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:34px;box-shadow:var(--shadow)}
.testi .avatars{display:flex;justify-content:center;gap:-10px;margin:22px 0 8px}
.testi .avatars span{width:44px;height:44px;border-radius:50%;border:3px solid #fff;margin-left:-10px;
  background:var(--green);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}
.testi .who{font-weight:700}.testi .src{color:var(--muted);font-size:14px}

/* ---------- pricing table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);background:#fff}
table.pricing{width:100%;border-collapse:collapse;min-width:480px}
table.pricing th,table.pricing td{padding:14px 18px;text-align:center;border-bottom:1px solid var(--border);font-size:15px}
table.pricing thead th{background:var(--ink);color:#fff;font-weight:700}
table.pricing thead th.hl-col{background:var(--green)}
table.pricing tbody td:first-child{text-align:left;color:var(--ink2);font-weight:600}
table.pricing .chk{color:var(--green);font-weight:800}
.cta-row{text-align:center;margin-top:30px}

/* ---------- social ---------- */
.social{display:flex;justify-content:center;gap:16px;margin:22px 0}
.social a{width:48px;height:48px;border-radius:50%;background:var(--green-light);color:var(--green-dark);
  display:flex;align-items:center;justify-content:center;transition:transform .15s,background .15s}
.social a:hover{transform:translateY(-3px);background:var(--green);color:#fff}
.social svg{width:22px;height:22px}

/* ---------- footer ---------- */
.footer{background:#11151a;color:#c3cad1;padding:56px 0 28px}
.footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;margin-bottom:34px}
.footer h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer a{display:block;color:#9aa3ac;padding:5px 0;font-size:14px}
.footer a:hover{color:var(--green)}
.footer .brand{font-weight:900;font-size:22px;color:#fff;letter-spacing:.5px}
.footer .brand .dot{color:var(--green)}
.footer .tagline{margin-top:12px;font-size:14px;color:#8b949e;max-width:280px}
.footer .bottom{border-top:1px solid #232a31;padding-top:20px;text-align:center;font-size:13px;color:#7b848d}

/* ---------- inner page hero ---------- */
.page-hero{background:linear-gradient(135deg,#10331f,#1faa59);color:#fff;text-align:center;padding:64px 0}
.page-hero h1{font-size:clamp(28px,4vw,42px);font-weight:900}
.page-hero p{opacity:.9;margin-top:10px}
.prose{max-width:820px;margin:0 auto;padding:56px 20px}
.prose h2{font-size:22px;font-weight:800;margin:30px 0 12px}
.prose h3{font-size:18px;font-weight:700;margin:22px 0 8px}
.prose p,.prose li{color:var(--ink2);margin-bottom:10px}
.prose ul{padding-left:20px;list-style:disc}
.prose ul li{margin-bottom:6px}

/* ============================================================
   RESPONSIVE — mobile nav fix + layout collapse
   ============================================================ */
@media (max-width:900px){
  .hero .container{grid-template-columns:1fr;text-align:center}
  .hero-badge{margin-left:auto;margin-right:auto}
  .trust{justify-content:center;gap:30px}
  .dl-mini{justify-content:center}
  .promo .grid,.hl{grid-template-columns:1fr;gap:26px}
  .hl:nth-child(even) .hl-media{order:0}
  .hl-media{height:200px}
  .feat-grid{grid-template-columns:repeat(3,1fr)}
  .footer .cols{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .section{padding:52px 0}
  /* hide desktop inline nav, show hamburger on the RIGHT */
  .nav-right{display:none}
  .nav-toggle{display:block}
  /* full-width slide-down panel (NOT a narrow strip) */
  .mobile-menu{display:none;position:fixed;inset:70px 0 0 0;width:100vw;background:#fff;
    z-index:999;flex-direction:column;align-items:center;gap:6px;padding:26px 20px;overflow-y:auto;
    border-top:1px solid var(--border)}
  .mobile-menu.open{display:flex}
  .mobile-menu a.m-link{width:100%;max-width:420px;text-align:center;padding:16px 0;font-size:18px;
    font-weight:700;color:var(--ink);border-bottom:1px solid var(--border)}
  .mobile-menu a.m-link:hover{color:var(--green)}
  .mobile-menu .m-lang{display:flex;gap:10px;margin-top:22px}
  .mobile-menu .m-lang a{border:1px solid var(--border);border-radius:999px;padding:10px 22px;
    font-weight:700;font-size:15px;color:var(--ink2)}
  .mobile-menu .m-lang a.active{background:var(--green);color:#fff;border-color:var(--green)}
  .mobile-menu .btn{margin-top:22px}
}
@media (max-width:560px){
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .footer .cols{grid-template-columns:1fr}
  .trust{gap:20px}
  .trust .ic{width:44px;height:44px}
  .phone{width:240px;height:480px}
  .hero h1{font-size:34px}
}
/* desktop: ensure mobile menu never shows */
@media (min-width:769px){ .mobile-menu{display:none!important} .nav-toggle{display:none} }