/* ============================================================
   趣玩游戏库 GameBox — vip.css
   会员中心页 · 权益/套餐/对比/FAQ · 深色科技风 · 响应式
   ============================================================ */

:root{
  --bg:#0f1115; --bg-2:#0b0d11; --card:#181c24; --card-2:#1d2330;
  --line:rgba(255,255,255,.08); --line-strong:rgba(255,255,255,.14);
  --txt:#e6e9f0; --txt-2:#9aa3b2; --txt-3:#6b7384;
  --blue:#4f8cff; --purple:#a855f7;
  --grad:linear-gradient(135deg,#4f8cff 0%,#7c5cff 50%,#a855f7 100%);
  --grad-vip:linear-gradient(135deg,#a855f7 0%,#ff506e 100%);
  --grad-gold:linear-gradient(135deg,#ffd24a 0%,#ff8a3a 100%);
  --radius:18px; --radius-sm:12px;
  --shadow:0 10px 30px rgba(0,0,0,.45); --shadow-lg:0 24px 60px rgba(0,0,0,.55);
  --blur:saturate(160%) blur(14px); --ease:cubic-bezier(.22,.61,.36,1);
  --maxw:1240px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Microsoft YaHei","PingFang SC","Segoe UI",system-ui,sans-serif;background:var(--bg);color:var(--txt);line-height:1.6;overflow-x:hidden;min-height:100vh}
a{color:inherit;text-decoration:none} ul{list-style:none} img{display:block;max-width:100%}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
table{border-collapse:collapse;width:100%}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 22px;border-radius:30px;font-size:15px;font-weight:600;transition:transform .25s var(--ease),box-shadow .25s;white-space:nowrap;user-select:none}
.btn:active{transform:translateY(1px) scale(.98)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 24px rgba(79,140,255,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(79,140,255,.5)}
.btn-ghost{background:rgba(255,255,255,.06);color:var(--txt);border:1px solid var(--line-strong);backdrop-filter:var(--blur)}
.btn-ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.btn-vip{background:var(--grad-vip);color:#fff;box-shadow:0 8px 24px rgba(168,85,247,.35)}
.btn-vip:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(168,85,247,.5)}
.btn-xl{padding:16px 44px;font-size:17px}
.btn-login{padding:9px 22px;background:rgba(255,255,255,.06);border:1px solid var(--line-strong);color:var(--txt)}
.btn-login:hover{background:var(--grad);border-color:transparent}

/* Navbar */
.navbar{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(15,17,21,.65);backdrop-filter:var(--blur);border-bottom:1px solid transparent;transition:background .3s,border-color .3s,box-shadow .3s}
.navbar.scrolled{background:rgba(11,13,17,.9);border-color:var(--line);box-shadow:0 6px 24px rgba(0,0,0,.4)}
.nav-inner{display:flex;align-items:center;height:68px;gap:24px}
.logo{display:flex;align-items:center;gap:9px;font-size:20px;font-weight:800;flex-shrink:0}
.logo-icon{font-size:22px;filter:drop-shadow(0 0 8px rgba(79,140,255,.6))}
.logo-text{color:#fff}
.logo-accent{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.nav-menu{flex:1;display:flex;justify-content:center}
.nav-menu ul{display:flex;gap:6px}
.nav-link{position:relative;display:block;padding:9px 16px;border-radius:10px;color:var(--txt-2);font-size:15px;font-weight:500;transition:color .25s,background .25s}
.nav-link:hover{color:var(--txt);background:rgba(255,255,255,.05)}
.nav-link.active{color:#fff}
.nav-link.active::after{content:"";position:absolute;left:16px;right:16px;bottom:3px;height:2px;border-radius:2px;background:var(--grad)}
.nav-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.search-box{display:flex;align-items:center;gap:6px;background:rgba(255,255,255,.06);border:1px solid var(--line);border-radius:30px;padding:5px 6px 5px 16px;transition:.25s}
.search-box:focus-within{border-color:var(--blue);background:rgba(79,140,255,.08)}
.search-box input{background:none;border:none;outline:none;color:var(--txt);width:170px;font-size:14px}
.search-box input::placeholder{color:var(--txt-3)}
.search-btn{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;color:var(--txt-2);transition:.2s}
.search-btn:hover{background:var(--grad);color:#fff}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:8px}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--txt);border-radius:2px;transition:.3s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* VIP Hero */
.vip-hero{position:relative;padding:120px 0 60px;overflow:hidden;background:linear-gradient(135deg,#1a0e2e 0%,#0a1430 50%,#0f1115 100%);border-bottom:1px solid var(--line)}
.vip-hero-glow{position:absolute;top:-20%;left:50%;transform:translateX(-50%);width:80%;height:120%;background:radial-gradient(circle,rgba(168,85,247,.35),transparent 60%);pointer-events:none}
.vip-hero-content{position:relative;z-index:1;text-align:center}
.vip-crown{font-size:56px;margin-bottom:16px;filter:drop-shadow(0 0 24px rgba(255,210,74,.6));animation:float 3s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.vip-badge{display:inline-block;padding:6px 20px;border-radius:30px;font-size:13px;font-weight:700;background:var(--grad-gold);color:#1a1230;margin-bottom:20px;letter-spacing:1px}
.vip-hero-title{font-size:clamp(32px,5vw,52px);font-weight:900;letter-spacing:1px;margin-bottom:16px;background:linear-gradient(120deg,#fff 20%,#ffd9a0 60%,#c9a6ff 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.vip-hero-desc{color:var(--txt-2);font-size:16px;margin-bottom:36px;line-height:1.9}
.vip-hero-stats{display:flex;justify-content:center;gap:48px;flex-wrap:wrap}
.vhs{display:flex;flex-direction:column;align-items:center;gap:4px}
.vhs b{font-size:28px;font-weight:900;background:var(--grad-gold);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.vhs span{font-size:13px;color:var(--txt-3)}

/* Main */
.main-content{padding-top:70px;padding-bottom:60px}

/* Section title */
.section-title{font-size:28px;font-weight:800;position:relative;padding-left:16px;display:inline-block}
.section-title::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:5px;border-radius:3px;background:var(--grad)}
.section-title.center{padding-left:0}
.section-title.center::before{display:none}
.section-sub{color:var(--txt-3);font-size:14px;margin-top:8px}
.section-sub.center{text-align:center;margin-bottom:36px}

/* Plans */
.plans-section{margin-bottom:70px}
.plans-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:30px}
.plan-card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px;overflow:hidden;transition:transform .35s var(--ease),border-color .35s,box-shadow .35s}
.plan-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.plan-hot{border-color:rgba(255,170,60,.4);background:linear-gradient(135deg,#1a1a28 0%,#181c24 100%)}
.plan-hot::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad-gold)}
.plan-ultimate{border-color:rgba(168,85,247,.4);background:linear-gradient(135deg,#1a1230 0%,#181c24 100%)}
.plan-ultimate::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad-vip)}
.plan-flag{position:absolute;top:14px;right:-2px;padding:5px 16px;border-radius:20px 0 0 20px;font-size:12px;font-weight:700;background:var(--grad-gold);color:#1a1230}
.plan-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.plan-name{font-size:20px;font-weight:700}
.plan-tag{font-size:12px;color:var(--txt-3);padding:3px 10px;border-radius:20px;background:rgba(255,255,255,.06)}
.plan-price{display:flex;align-items:flex-start;gap:2px;margin-bottom:6px}
.plan-price .cur{font-size:22px;font-weight:700;color:var(--txt-2);margin-top:6px}
.plan-price .num{font-size:52px;font-weight:900;line-height:1;background:var(--grad-gold);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.plan-price .per{font-size:16px;color:var(--txt-2);margin-top:14px}
.plan-save{font-size:13px;color:#22d3a8;margin-bottom:20px;font-weight:600}
.plan-feats{display:grid;gap:10px;margin-bottom:24px}
.plan-feats li{font-size:14px;color:var(--txt-2);display:flex;align-items:center;gap:8px}
.plan-feats li.yes::before{content:"✓";color:#22d3a8;font-weight:900;flex-shrink:0}
.plan-feats li.no{color:var(--txt-3)}
.plan-feats li.no::before{content:"✕";color:var(--txt-3);flex-shrink:0}
.plan-btn{width:100%}

/* Perks */
.perks-section{margin-bottom:70px}
.perks-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.perk-card{position:relative;padding:28px 24px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .35s var(--ease),border-color .35s,box-shadow .35s;animation:fadeup .5s var(--ease) both}
.perk-card::before{content:"";position:absolute;inset:0;opacity:0;transition:opacity .35s;background:radial-gradient(circle at 0% 0%,rgba(168,85,247,.15),transparent 60%)}
.perk-card:hover{transform:translateY(-6px);border-color:rgba(168,85,247,.4);box-shadow:var(--shadow-lg)}
.perk-card:hover::before{opacity:1}
.perk-ico{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;font-size:26px;margin-bottom:16px;background:var(--grad-vip);position:relative;z-index:1;box-shadow:0 8px 22px rgba(168,85,247,.3)}
.perk-card h3{font-size:18px;font-weight:700;margin-bottom:8px;position:relative;z-index:1}
.perk-card p{color:var(--txt-2);font-size:14px;line-height:1.8;position:relative;z-index:1}

/* Compare table */
.compare-section{margin-bottom:70px}
.compare-table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);background:var(--card)}
.compare-table th,.compare-table td{padding:16px 20px;text-align:center;border-bottom:1px solid var(--line)}
.compare-table th{font-size:14px;font-weight:700;color:var(--txt-3);background:var(--card-2);text-transform:uppercase;letter-spacing:.5px}
.compare-table td{font-size:14px}
.compare-table tr:last-child td{border-bottom:none}
.ct-feat{text-align:left!important;color:var(--txt);font-weight:600}
.ct-free{color:var(--txt-3)}
.ct-vip{color:#ffd66b}
.compare-table tbody tr:hover{background:rgba(255,255,255,.03)}
.ct-yes{color:#22d3a8;font-weight:700;font-size:16px}
.ct-no{color:var(--txt-3);font-size:16px}
.ct-vip-val{color:var(--blue);font-weight:600}

/* FAQ */
.faq-section{margin-bottom:70px}
.faq-list{max-width:760px;margin:0 auto;display:grid;gap:14px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:border-color .25s}
.faq-item.open{border-color:rgba(79,140,255,.4)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 24px;cursor:pointer;font-size:16px;font-weight:600;transition:.25s}
.faq-q:hover{color:var(--blue)}
.faq-arrow{font-size:14px;color:var(--txt-3);transition:transform .3s;flex-shrink:0}
.faq-item.open .faq-arrow{transform:rotate(180deg);color:var(--blue)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s var(--ease)}
.faq-a-inner{padding:0 24px 18px;color:var(--txt-2);font-size:14px;line-height:1.8}

/* CTA */
.vip-cta{position:relative;text-align:center;padding:50px 30px;border-radius:24px;overflow:hidden;background:linear-gradient(135deg,#1a0e2e 0%,#101a3a 60%,#0f1722 100%);border:1px solid rgba(168,85,247,.3);margin-bottom:20px}
.cta-glow{position:absolute;top:-40%;left:50%;transform:translateX(-50%);width:70%;height:140%;background:radial-gradient(circle,rgba(168,85,247,.35),transparent 60%);pointer-events:none}
.vip-cta h2{font-size:28px;font-weight:800;margin-bottom:10px;position:relative;z-index:1}
.vip-cta p{color:var(--txt-2);font-size:15px;margin-bottom:24px;position:relative;z-index:1}
.vip-cta .btn{position:relative;z-index:1}

/* Pay modal */
.modal{position:fixed;inset:0;z-index:300;display:none;align-items:center;justify-content:center;padding:24px}
.modal.open{display:flex}
.modal-backdrop{position:absolute;inset:0;background:rgba(5,7,11,.78);backdrop-filter:blur(8px);animation:fade .3s}
.modal-box{position:relative;width:100%;max-width:420px;border-radius:22px;background:var(--card);border:1px solid var(--line-strong);box-shadow:var(--shadow-lg);animation:modalin .4s var(--ease);overflow:hidden}
@keyframes modalin{from{opacity:0;transform:translateY(30px) scale(.97)}to{opacity:1;transform:none}}
@keyframes fade{from{opacity:0}to{opacity:1}}
.modal-close{position:absolute;top:14px;right:14px;z-index:5;width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.08);color:#fff;font-size:16px;transition:.2s}
.modal-close:hover{background:rgba(255,80,110,.9);transform:rotate(90deg)}
.pay-head{text-align:center;padding:30px 24px 20px;background:linear-gradient(135deg,#1a1230 0%,#181c24 100%)}
.pay-crown{font-size:40px;margin-bottom:10px}
.pay-head h3{font-size:22px;font-weight:700;margin-bottom:4px}
.pay-head p{font-size:14px;color:var(--txt-3)}
.pay-body{padding:24px}
.pay-row{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid var(--line);font-size:15px}
.pay-row span{color:var(--txt-3)} .pay-row b{color:var(--txt);font-weight:700}
.pay-note{font-size:13px;color:#f59e0b;margin:16px 0;padding:10px;background:rgba(245,158,11,.1);border-radius:10px;text-align:center}
.pay-body .btn{margin-top:8px}

/* Footer */
.footer{background:var(--bg-2);border-top:1px solid var(--line);padding-top:54px}
.footer-inner{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:36px}
.footer-brand .logo{margin-bottom:14px}
.footer-desc{color:var(--txt-3);font-size:13px;max-width:280px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:#fff}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:var(--txt-3);font-size:13px;transition:.2s} .footer-col a:hover{color:var(--blue)}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0;text-align:center}
.footer-bottom p{font-size:12px;color:var(--txt-3)}

/* Toast */
.toast{position:fixed;left:50%;bottom:34px;transform:translateX(-50%) translateY(20px);padding:12px 26px;border-radius:30px;font-size:14px;font-weight:600;color:#fff;background:rgba(24,28,36,.95);border:1px solid var(--line-strong);box-shadow:var(--shadow);backdrop-filter:blur(10px);opacity:0;pointer-events:none;transition:.35s var(--ease);z-index:400}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* Back top */
.back-top{position:fixed;right:26px;bottom:26px;width:46px;height:46px;border-radius:50%;background:var(--grad);color:#fff;font-size:20px;font-weight:700;box-shadow:0 10px 26px rgba(79,140,255,.4);opacity:0;pointer-events:none;transition:.3s var(--ease);z-index:90;display:grid;place-items:center}
.back-top.show{opacity:1;pointer-events:auto} .back-top:hover{transform:translateY(-4px)}

@keyframes fadeup{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}

/* Responsive */
@media (max-width:1080px){
  .perks-grid{grid-template-columns:repeat(2,1fr)}
  .search-box input{width:130px}
}
@media (max-width:900px){
  .nav-toggle{display:flex}
  .nav-menu{position:fixed;top:68px;left:0;right:0;flex-direction:column;background:rgba(11,13,17,.97);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);padding:14px 24px 22px;transform:translateY(-130%);transition:transform .35s var(--ease);max-height:calc(100vh - 68px);overflow:auto}
  .nav-menu.open{transform:translateY(0)} .nav-menu ul{flex-direction:column;gap:4px}
  .nav-link{padding:13px 16px;font-size:16px} .nav-link.active::after{display:none} .nav-link.active{background:rgba(79,140,255,.15)}
  .nav-actions{margin-left:auto}
  .plans-grid{grid-template-columns:1fr;max-width:480px;margin:30px auto 0}
  .perks-grid{grid-template-columns:repeat(2,1fr)}
  .vip-hero-stats{gap:28px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .vip-hero{padding:100px 0 40px}
  .vip-hero-stats{gap:20px}
  .vhs b{font-size:22px}
  .perks-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr 1fr;gap:24px}
  .compare-table th,.compare-table td{padding:12px 14px;font-size:13px}
}
@media (max-width:480px){
  .footer-inner{grid-template-columns:1fr}
  .vip-cta h2{font-size:22px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}