/* =========================================================
   OpenAI 会员代开 · 全局样式 (style.css)
   暗色科技风 · 响应式
   ========================================================= */
:root{
  --bg:#05060a;
  --bg-soft:#0a0c14;
  --card:rgba(255,255,255,.035);
  --card-2:rgba(255,255,255,.065);
  --border:rgba(255,255,255,.09);
  --border-strong:rgba(255,255,255,.18);
  --text:#eef0f8;
  --text-2:#c8cde0;
  --text-dim:#8b92ad;
  --primary:#8b5cff;
  --primary-2:#5b7cff;
  --cyan:#22d3ee;
  --green:#34d399;
  --amber:#fbbf24;
  --red:#f87171;
  --grad:linear-gradient(120deg,#8b5cff,#5b7cff 50%,#22d3ee);
  --grad-soft:linear-gradient(120deg,rgba(139,92,255,.16),rgba(34,211,238,.10));
  --shadow:0 24px 70px -28px rgba(0,0,0,.75);
  --radius:16px;
  --radius-sm:10px;
  --nav-h:72px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*{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;
  min-height:100vh;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(600px 400px at 12% -5%,rgba(139,92,255,.13),transparent 65%),
    radial-gradient(700px 500px at 88% 8%,rgba(34,211,238,.09),transparent 65%),
    radial-gradient(800px 600px at 50% 110%,rgba(91,124,255,.07),transparent 65%);
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,select,textarea{font-family:inherit;font-size:15px}
::selection{background:rgba(139,92,255,.45);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#8b5cff,#22d3ee);border-radius:8px;border:2px solid var(--bg)}
::-webkit-scrollbar-track{background:var(--bg-soft)}

/* ---------- 通用工具 ---------- */
.container{max-width:1180px;margin:0 auto;padding:0 20px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
.section{padding:88px 0}
.section-head{max-width:680px;margin:0 auto 54px;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:100px;border:1px solid var(--border);background:var(--card);color:var(--text-2);font-size:13px;letter-spacing:1px}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--grad);box-shadow:0 0 12px rgba(139,92,255,.9)}
.section-head h2{font-size:clamp(26px,4vw,38px);font-weight:800;letter-spacing:.5px;margin-top:18px}
.section-head p{color:var(--text-dim);margin-top:12px;font-size:15.5px}
.center{text-align:center}
.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mt-32{margin-top:32px}
.hidden{display:none !important}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 28px;border-radius:12px;font-size:15px;font-weight:600;border:1px solid transparent;transition:.25s;white-space:nowrap;line-height:1.2}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 30px -10px rgba(124,92,255,.55)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 40px -10px rgba(124,92,255,.75);filter:brightness(1.07)}
.btn-outline{border-color:var(--border-strong);color:var(--text);background:rgba(255,255,255,.03)}
.btn-outline:hover{border-color:var(--primary);color:#fff;background:rgba(139,92,255,.12)}
.btn-ghost{color:var(--text-2);background:transparent}
.btn-ghost:hover{color:#fff;background:rgba(255,255,255,.06)}
.btn-sm{padding:8px 16px;font-size:13px;border-radius:9px}
.btn-block{width:100%}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none !important}
.btn-danger{background:rgba(248,113,113,.12);color:var(--red);border-color:rgba(248,113,113,.3)}
.btn-danger:hover{background:rgba(248,113,113,.22)}
.btn-success{background:rgba(52,211,153,.12);color:var(--green);border-color:rgba(52,211,153,.3)}
.btn-success:hover{background:rgba(52,211,153,.22)}
/* ---------- 导航栏 ---------- */
.navbar{position:sticky;top:0;z-index:100;height:var(--nav-h);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);background:rgba(5,6,10,.72);border-bottom:1px solid var(--border);transition:.3s}
.navbar.scrolled{background:rgba(5,6,10,.93)}
.nav-inner{height:var(--nav-h);display:flex;align-items:center;gap:26px}
.logo{display:flex;align-items:center;gap:11px;font-weight:700;font-size:19px;letter-spacing:.5px;color:#fff}
.logo-mark{width:36px;height:36px;border-radius:11px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;color:#fff;box-shadow:0 6px 18px -6px rgba(139,92,255,.7)}
.logo small{display:block;font-size:10px;font-weight:500;color:var(--text-dim);letter-spacing:1.5px;line-height:1.2}
.nav-links{display:flex;gap:2px;margin-left:auto}
.nav-links a{padding:8px 14px;border-radius:9px;font-size:14.5px;color:var(--text-2);transition:.2s;position:relative}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-links a.active{color:#fff}
.nav-links a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;background:var(--grad)}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-burger{display:none;flex-direction:column;gap:5px;padding:6px}
.nav-burger span{width:22px;height:2px;background:var(--text);border-radius:2px;transition:.3s}
.nav-burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-burger.open span:nth-child(2){opacity:0}
.nav-burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-mobile{display:none;position:fixed;top:var(--nav-h);left:0;right:0;z-index:99;background:rgba(5,6,10,.98);backdrop-filter:blur(18px);border-bottom:1px solid var(--border);padding:14px 20px 22px;box-shadow:var(--shadow)}
.nav-mobile.open{display:block}
.nav-mobile a{display:block;padding:13px 10px;border-radius:10px;font-size:15.5px;color:var(--text-2)}
.nav-mobile a:hover,.nav-mobile a.active{color:#fff;background:rgba(139,92,255,.12)}
.nav-mobile .btn{margin-top:14px}

/* ---------- Hero ---------- */
.hero{position:relative;padding:100px 0 84px;overflow:hidden;text-align:center}
.hero-bg{position:absolute;inset:0;z-index:-1;pointer-events:none}
.orb{position:absolute;border-radius:50%;filter:blur(85px);opacity:.55}
.orb-1{width:440px;height:440px;left:-140px;top:-160px;background:radial-gradient(circle,rgba(139,92,255,.55),transparent 70%);animation:float 9s ease-in-out infinite}
.orb-2{width:480px;height:480px;right:-160px;top:10px;background:radial-gradient(circle,rgba(34,211,238,.35),transparent 70%);animation:float 11s ease-in-out infinite reverse}
.orb-3{width:320px;height:320px;left:38%;bottom:-190px;background:radial-gradient(circle,rgba(91,124,255,.4),transparent 70%);animation:float 13s ease-in-out infinite}
.grid-lines{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:56px 56px;-webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 30%,transparent 75%);mask-image:radial-gradient(ellipse at 50% 0%,#000 30%,transparent 75%)}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(28px)}}
.hero h1{font-size:clamp(34px,6vw,62px);font-weight:800;letter-spacing:1px;line-height:1.16;margin:24px auto 22px;max-width:860px}
.hero p.sub{color:var(--text-dim);font-size:clamp(15px,2vw,17.5px);max-width:660px;margin:0 auto}
.hero-actions{display:flex;gap:14px;justify-content:center;margin-top:36px;flex-wrap:wrap}
.hero-stats{display:flex;justify-content:center;gap:clamp(26px,6vw,64px);margin-top:60px;flex-wrap:wrap}
.hero-stats .item{text-align:center}
.hero-stats .num{font-size:clamp(24px,3vw,32px);font-weight:800}
.hero-stats .lbl{color:var(--text-dim);font-size:13px;margin-top:2px;letter-spacing:1px}

/* ---------- 信任条 ---------- */
.trust-strip{border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:rgba(255,255,255,.02)}
.trust-inner{display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;padding:20px 0}
.trust-item{display:flex;align-items:center;gap:10px;color:var(--text-2);font-size:14px}
.trust-item svg{width:20px;height:20px;flex:none;color:var(--cyan)}
/* ---------- 套餐卡片 ---------- */
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.pricing-card{position:relative;display:flex;flex-direction:column;padding:34px 28px 30px;border-radius:var(--radius);border:1px solid var(--border);background:var(--card);transition:.3s;overflow:hidden}
.pricing-card:hover{transform:translateY(-6px);border-color:var(--border-strong);background:var(--card-2)}
.pricing-card.hot{border-color:transparent;background:linear-gradient(var(--bg-soft),var(--bg-soft)) padding-box,var(--grad) border-box;box-shadow:0 24px 60px -24px rgba(139,92,255,.45)}
.pricing-card.hot::before{content:"最受欢迎";position:absolute;top:16px;right:-34px;transform:rotate(45deg);background:var(--grad);color:#fff;font-size:11.5px;font-weight:700;padding:5px 38px;letter-spacing:1px}
.pkg-icon{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:var(--grad-soft);border:1px solid var(--border)}
.pkg-icon svg{width:26px;height:26px;color:var(--cyan)}
.pkg-name{font-size:21px;font-weight:800;margin-top:18px}
.pkg-tagline{color:var(--text-dim);font-size:13.5px;margin-top:4px}
.pkg-price{display:flex;align-items:baseline;gap:6px;margin:22px 0 4px}
.pkg-price .cur{font-size:20px;font-weight:700}
.pkg-price .amt{font-size:clamp(34px,4vw,44px);font-weight:800;letter-spacing:-1px}
.pkg-price .per{color:var(--text-dim);font-size:14px}
.pkg-original{color:var(--text-dim);font-size:13px;text-decoration:line-through}
.pkg-usd{display:inline-block;margin-top:6px;font-size:12px;color:var(--text-2);background:rgba(255,255,255,.05);border:1px solid var(--border);padding:3px 10px;border-radius:100px}
.pkg-features{margin:22px 0 26px;flex:1}
.pkg-features li{display:flex;gap:10px;padding:6.5px 0;font-size:14px;color:var(--text-2)}
.pkg-features li svg{width:18px;height:18px;flex:none;margin-top:3px;color:var(--green)}
.pkg-features li.off{color:var(--text-dim);opacity:.65}
.pkg-features li.off svg{color:var(--red)}

/* ---------- 特性网格（为什么选我们） ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feature-card{padding:28px 26px;border-radius:var(--radius);border:1px solid var(--border);background:var(--card);transition:.3s}
.feature-card:hover{border-color:rgba(139,92,255,.5);background:var(--card-2);transform:translateY(-4px)}
.feature-card .f-icon{width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:var(--grad-soft);border:1px solid var(--border);margin-bottom:18px}
.feature-card .f-icon svg{width:22px;height:22px;color:var(--primary-2)}
.feature-card h3{font-size:17px;font-weight:700}
.feature-card p{color:var(--text-dim);font-size:14px;margin-top:8px}

/* ---------- 开通流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.step-card{position:relative;text-align:center;padding:26px 16px;border-radius:var(--radius);border:1px solid var(--border);background:var(--card)}
.step-num{width:38px;height:38px;margin:0 auto;border-radius:50%;background:var(--grad);color:#fff;font-weight:800;font-size:16px;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 20px -8px rgba(139,92,255,.7)}
.step-card h4{font-size:15px;font-weight:700;margin-top:16px}
.step-card p{color:var(--text-dim);font-size:13px;margin-top:6px}
.step-card::after{content:"";position:absolute;top:44px;right:-16px;width:16px;height:2px;background:linear-gradient(90deg,var(--primary),transparent)}
.step-card:last-child::after{display:none}
/* ---------- FAQ 手风琴 ---------- */
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{border:1px solid var(--border);border-radius:14px;background:var(--card);overflow:hidden;transition:.25s}
.faq-item.open{border-color:rgba(139,92,255,.55);background:var(--card-2)}
.faq-q{display:flex;align-items:center;gap:14px;width:100%;text-align:left;padding:18px 22px;font-size:15.5px;font-weight:600;color:var(--text);transition:.2s}
.faq-q:hover{color:#fff}
.faq-q .faq-icon{width:22px;height:22px;border-radius:6px;background:var(--grad-soft);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;transition:.3s;flex:none}
.faq-q .faq-icon svg{width:12px;height:12px;color:var(--cyan)}
.faq-item.open .faq-icon{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a-inner{padding:0 22px 20px 58px;color:var(--text-dim);font-size:14.5px}

/* ---------- 对比表格 ---------- */
.compare-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius)}
.compare-table{width:100%;border-collapse:collapse;min-width:720px}
.compare-table th,.compare-table td{padding:16px 18px;text-align:center;font-size:14px;border-bottom:1px solid var(--border)}
.compare-table thead th{background:rgba(255,255,255,.03);font-size:15px;font-weight:700;color:var(--text)}
.compare-table thead th .ct-sub{display:block;font-size:12px;font-weight:600;color:var(--text-dim);margin-top:2px}
.compare-table thead th.ct-hot{background:rgba(139,92,255,.12)}
.compare-table tbody th{text-align:left;font-weight:500;color:var(--text-2);background:rgba(255,255,255,.015)}
.compare-table tbody tr:last-child td,.compare-table tbody tr:last-child th{border-bottom:none}
.compare-table tr:hover td{background:rgba(255,255,255,.02)}
.c-check{color:var(--green);font-weight:700}
.c-x{color:var(--red)}
.c-dim{color:var(--text-dim)}
.c-pro{color:var(--amber)}

/* ---------- 表单 ---------- */
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text-2)}
.form-group label .req{color:var(--red)}
.form-control{width:100%;padding:13px 16px;border-radius:12px;border:1px solid var(--border);background:rgba(255,255,255,.04);color:var(--text);transition:.25s;outline:none}
.form-control::placeholder{color:#5b6280}
.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(139,92,255,.18);background:rgba(255,255,255,.06)}
textarea.form-control{resize:vertical;min-height:110px}
.form-hint{font-size:12.5px;color:var(--text-dim);margin-top:6px}
select.form-control{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238b92ad' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;padding-right:40px}
.radio-card{display:flex;align-items:center;gap:14px;padding:16px 18px;border:1px solid var(--border);border-radius:12px;background:rgba(255,255,255,.03);cursor:pointer;transition:.25s;margin-bottom:12px}
.radio-card:hover{border-color:var(--border-strong)}
.radio-card.selected{border-color:var(--primary);background:rgba(139,92,255,.1);box-shadow:0 0 0 3px rgba(139,92,255,.12)}
.radio-card .rc-dot{width:20px;height:20px;border-radius:50%;border:2px solid var(--border-strong);flex:none;display:flex;align-items:center;justify-content:center;transition:.2s}
.radio-card.selected .rc-dot{border-color:var(--primary)}
.radio-card.selected .rc-dot::after{content:"";width:10px;height:10px;border-radius:50%;background:var(--grad)}
.radio-card .rc-body{flex:1}
.radio-card .rc-title{font-weight:600;font-size:15px}
.radio-card .rc-desc{font-size:12.5px;color:var(--text-dim)}
.radio-card .rc-side{font-weight:700;color:var(--cyan)}
/* ---------- 状态徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:100px;font-size:12.5px;font-weight:600}
.badge .bdot{width:6px;height:6px;border-radius:50%;background:currentColor}
.status-pending{background:rgba(251,191,36,.12);color:var(--amber);border:1px solid rgba(251,191,36,.3)}
.status-paid{background:rgba(96,165,250,.12);color:#60a5fa;border:1px solid rgba(96,165,250,.3)}
.status-processing{background:rgba(139,92,255,.14);color:#a78bfa;border:1px solid rgba(139,92,255,.35)}
.status-active{background:rgba(52,211,153,.12);color:var(--green);border:1px solid rgba(52,211,153,.3)}
.status-cancelled{background:rgba(248,113,113,.12);color:var(--red);border:1px solid rgba(248,113,113,.3)}

/* ---------- 页面页头 ---------- */
.page-hero{padding:70px 0 40px;text-align:center}
.page-hero h1{font-size:clamp(28px,4.5vw,44px);font-weight:800;letter-spacing:1px;margin-top:18px}
.page-hero p{color:var(--text-dim);font-size:15.5px;max-width:640px;margin:14px auto 0}
.breadcrumb{color:var(--text-dim);font-size:13px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--cyan)}

/* ---------- 订单结果卡 ---------- */
.order-card{max-width:640px;margin:0 auto;border:1px solid var(--border);border-radius:var(--radius);background:var(--card);padding:30px;box-shadow:var(--shadow)}
.order-info{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 22px;margin:20px 0;font-size:14px}
.order-info .oi{display:flex;justify-content:space-between;gap:12px;padding:11px 14px;border-radius:10px;background:rgba(255,255,255,.03);border:1px solid var(--border)}
.order-info .oi b{color:var(--text);font-weight:600}
.order-info .oi span{color:var(--text-dim)}
.order-info .oi.total{grid-column:1/-1;background:var(--grad-soft);border-color:rgba(139,92,255,.4)}
.order-info .oi.total span{color:var(--cyan);font-weight:700;font-size:18px}

/* 状态时间轴 */
.timeline{margin:24px 0 8px;position:relative}
.timeline .tl-item{position:relative;display:flex;gap:16px;padding-bottom:26px}
.timeline .tl-item:last-child{padding-bottom:0}
.timeline .tl-item::before{content:"";position:absolute;left:11px;top:26px;bottom:-2px;width:2px;background:var(--border)}
.timeline .tl-item:last-child::before{display:none}
.tl-dot{width:24px;height:24px;border-radius:50%;background:var(--bg-soft);border:2px solid var(--border-strong);flex:none;display:flex;align-items:center;justify-content:center;z-index:1}
.tl-dot svg{width:12px;height:12px;color:transparent}
.tl-item.done .tl-dot{background:var(--grad);border-color:transparent;box-shadow:0 4px 14px -4px rgba(139,92,255,.8)}
.tl-item.done .tl-dot svg{color:#fff}
.tl-item.active .tl-dot{background:rgba(139,92,255,.25);border-color:var(--primary)}
.tl-item.active .tl-dot svg{color:var(--primary)}
.tl-body{flex:1;padding-top:2px}
.tl-body h5{font-size:14.5px;font-weight:600}
.tl-body p{font-size:12.5px;color:var(--text-dim)}
.tl-item.done .tl-body h5{color:var(--text)}
.tl-item:not(.done):not(.active) .tl-body h5,.tl-item:not(.done):not(.active) .tl-body p{color:#5b6280}

/* ---------- 联系卡 ---------- */
.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.contact-card{padding:26px 22px;border-radius:var(--radius);border:1px solid var(--border);background:var(--card);text-align:center;transition:.3s}
.contact-card:hover{border-color:rgba(139,92,255,.5);transform:translateY(-4px)}
.contact-card .c-icon{width:48px;height:48px;margin:0 auto 16px;border-radius:12px;background:var(--grad-soft);border:1px solid var(--border);display:flex;align-items:center;justify-content:center}
.contact-card .c-icon svg{width:24px;height:24px;color:var(--primary-2)}
.contact-card h3{font-size:15.5px;font-weight:700}
.contact-card p{color:var(--text-dim);font-size:13.5px;margin-top:6px;word-break:break-all}

/* ---------- CTA 横幅 ---------- */
.cta-banner{position:relative;overflow:hidden;border-radius:22px;border:1px solid var(--border);background:linear-gradient(135deg,rgba(139,92,255,.16),rgba(34,211,238,.08));padding:60px 30px;text-align:center}
.cta-banner::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:44px 44px;-webkit-mask-image:radial-gradient(ellipse at 50% 50%,#000,transparent 80%);mask-image:radial-gradient(ellipse at 50% 50%,#000,transparent 80%)}
.cta-banner h2{font-size:clamp(24px,3.6vw,36px);font-weight:800;position:relative}
.cta-banner p{color:var(--text-dim);margin-top:12px;position:relative}
.cta-banner .btn{margin-top:28px;position:relative}

/* ---------- 页脚 ---------- */
.footer{border-top:1px solid var(--border);background:var(--bg-soft);margin-top:60px;padding:56px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.footer h4{font-size:15px;font-weight:700;margin-bottom:16px}
.footer p,.footer a{font-size:13.5px;color:var(--text-dim)}
.footer .f-links li{margin-bottom:10px}
.footer .f-links a:hover{color:var(--cyan)}
.footer .f-contact li{display:flex;gap:10px;margin-bottom:10px;font-size:13.5px;color:var(--text-dim)}
.footer .f-contact svg{width:16px;height:16px;flex:none;margin-top:3px;color:var(--primary-2)}
.footer-bottom{border-top:1px solid var(--border);margin-top:38px;padding-top:22px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12.5px;color:#5b6280}
/* ---------- 客服悬浮窗 ---------- */
.cs-float{position:fixed;right:22px;bottom:22px;z-index:90;display:flex;flex-direction:column;align-items:flex-end;gap:12px}
.cs-btn{width:56px;height:56px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 12px 32px -8px rgba(139,92,255,.7);transition:.3s}
.cs-btn:hover{transform:scale(1.08) rotate(6deg)}
.cs-btn svg{width:26px;height:26px}
.cs-panel{position:fixed;right:22px;bottom:90px;width:300px;border:1px solid var(--border-strong);border-radius:18px;background:rgba(10,12,20,.97);backdrop-filter:blur(20px);box-shadow:var(--shadow);overflow:hidden;transform:translateY(12px);opacity:0;visibility:hidden;transition:.3s;z-index:91}
.cs-panel.open{transform:translateY(0);opacity:1;visibility:visible}
.cs-panel-head{padding:16px 18px;background:var(--grad-soft);border-bottom:1px solid var(--border);display:flex;align-items:center;gap:12px}
.cs-avatar{width:40px;height:40px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;flex:none}
.cs-panel-head h4{font-size:15px}
.cs-panel-head p{font-size:12px;color:var(--green)}
.cs-panel-body{padding:14px 16px 18px}
.cs-option{display:flex;align-items:center;gap:12px;width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:12px;background:rgba(255,255,255,.03);margin-bottom:10px;text-align:left;transition:.2s;color:var(--text-2)}
.cs-option:hover{border-color:var(--primary);background:rgba(139,92,255,.1);color:#fff}
.cs-option svg{width:20px;height:20px;color:var(--cyan);flex:none}
.cs-option b{display:block;font-size:14px}
.cs-option small{font-size:12px;color:var(--text-dim)}
.cs-tip{font-size:12px;color:#5b6280;text-align:center;margin-top:6px}

/* ---------- 弹窗 / Toast ---------- */
.modal-mask{position:fixed;inset:0;z-index:200;background:rgba(3,4,8,.72);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;padding:20px;opacity:0;visibility:hidden;transition:.3s}
.modal-mask.open{opacity:1;visibility:visible}
.modal{position:relative;width:100%;max-width:460px;max-height:88vh;overflow:auto;border:1px solid var(--border-strong);border-radius:20px;background:var(--bg-soft);padding:28px;box-shadow:var(--shadow);transform:translateY(16px) scale(.98);transition:.3s}
.modal-mask.open .modal{transform:none}
.modal h3{font-size:20px;font-weight:800;text-align:center}
.modal .m-close{position:absolute;top:14px;right:14px;width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--text-dim);transition:.2s}
.modal .m-close:hover{background:rgba(255,255,255,.08);color:#fff}
.qr-box{width:200px;height:200px;margin:22px auto;border-radius:14px;background:#fff;padding:10px;display:flex;align-items:center;justify-content:center}
.qr-box img{width:100%;height:100%;image-rendering:pixelated}
.qr-box .qr-fallback{color:#333;font-size:11px;text-align:center;word-break:break-all}
.qr-tip{text-align:center;font-size:13.5px;color:var(--text-dim);margin-bottom:18px}
.pay-amount{display:flex;align-items:baseline;justify-content:center;gap:10px;margin:0 auto 18px;padding:12px 20px;border-radius:14px;background:var(--grad-soft);border:1px solid var(--border)}
.pay-amount .pay-amount-label{font-size:13px;color:var(--text-dim)}
.pay-amount .pay-amount-value{font-size:30px;font-weight:800;color:var(--cyan);letter-spacing:-.5px}
.pay-verify{margin-bottom:16px;padding:14px 16px;border-radius:14px;background:rgba(139,92,255,.06);border:1px solid rgba(139,92,255,.22)}
.pay-verify label{display:block;font-size:13px;font-weight:600;margin-bottom:8px}
.pay-verify .form-control{background:var(--bg);border-color:var(--border-strong)}
.pay-verify-hint{font-size:12px;color:var(--text-dim);margin-top:8px}
.pay-steps{background:rgba(255,255,255,.04);border:1px solid var(--border);border-radius:12px;padding:16px 18px;font-size:13.5px;color:var(--text-2);margin-bottom:20px}
.pay-steps li{display:flex;gap:8px;padding:4px 0}
.pay-steps .n{color:var(--cyan);font-weight:700}
/* ---------- 测试支付通道 ---------- */
.pay-test{margin-bottom:16px;padding:14px 16px;border-radius:14px;background:rgba(52,211,153,.06);border:1px solid rgba(52,211,153,.28)}
.pay-test-head{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--green);margin-bottom:8px}
.pay-test-tag{background:rgba(52,211,153,.18);border:1px solid rgba(52,211,153,.45);color:var(--green);font-size:11px;font-weight:800;padding:2px 8px;border-radius:100px;letter-spacing:.5px;flex:none}
.pay-test-desc{font-size:12.5px;color:var(--text-dim);line-height:1.6;margin-bottom:12px}
.btn-test{background:rgba(52,211,153,.15);color:var(--green);border:1px solid rgba(52,211,153,.4)}
.btn-test:hover{background:rgba(52,211,153,.26)}
.pay-poll{display:flex;align-items:center;gap:8px;justify-content:center;font-size:12.5px;color:var(--text-dim);margin-top:12px}
.pay-poll .spinner{width:13px;height:13px;border:2px solid rgba(52,211,153,.22);border-top-color:var(--green);border-radius:50%;animation:spin .8s linear infinite;flex:none}
@keyframes spin{to{transform:rotate(360deg)}}
#toast-wrap{position:fixed;top:86px;left:50%;transform:translateX(-50%);z-index:400;display:flex;flex-direction:column;gap:10px;align-items:center;pointer-events:none}
.toast{padding:12px 22px;border-radius:12px;font-size:14px;font-weight:600;background:rgba(16,18,28,.96);border:1px solid var(--border-strong);box-shadow:var(--shadow);color:var(--text);display:flex;gap:9px;align-items:center;animation:toastIn .3s ease}
.toast svg{width:18px;height:18px;flex:none}
.toast.ok svg{color:var(--green)}
.toast.err svg{color:var(--red)}
@keyframes toastIn{from{opacity:0;transform:translateY(-12px)}to{opacity:1;transform:none}}
.toast.hide{opacity:0;transform:translateY(-12px);transition:.3s}

/* ---------- 空状态 / 通用面板 ---------- */
.empty{text-align:center;padding:60px 20px;color:var(--text-dim)}
.empty svg{width:54px;height:54px;margin:0 auto 16px;color:#3a4160}
.empty h4{font-size:16px;color:var(--text-2)}
.panel{border:1px solid var(--border);border-radius:var(--radius);background:var(--card);padding:26px}
.panel-title{font-size:17px;font-weight:700;margin-bottom:18px;display:flex;align-items:center;gap:10px}
.panel-title svg{width:20px;height:20px;color:var(--primary-2)}

/* ---------- 滚动显现动画 ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}
/* ---------- 管理后台 ---------- */
.admin-body{background:var(--bg)}
.admin-shell{display:grid;grid-template-columns:232px 1fr;min-height:100vh}
.admin-side{position:sticky;top:0;height:100vh;border-right:1px solid var(--border);background:var(--bg-soft);padding:22px 14px;display:flex;flex-direction:column;overflow-y:auto}
.admin-side .logo{padding:0 10px 20px;border-bottom:1px solid var(--border);margin-bottom:16px}
.admin-nav{flex:1}
.admin-nav a{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:11px;color:var(--text-2);font-size:14.5px;margin-bottom:4px;transition:.2s}
.admin-nav a:hover{color:#fff;background:rgba(255,255,255,.05)}
.admin-nav a.active{background:var(--grad-soft);color:#fff;border:1px solid rgba(139,92,255,.35)}
.admin-nav a svg{width:19px;height:19px;flex:none;color:var(--primary-2)}
.admin-nav a.active svg{color:var(--cyan)}
.admin-main{padding:26px 30px 60px;min-width:0}
.admin-top{display:flex;align-items:center;gap:14px;margin-bottom:26px;flex-wrap:wrap}
.admin-top h2{font-size:22px;font-weight:800;margin-right:auto}
.admin-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:26px}
.stat-card{border:1px solid var(--border);border-radius:14px;background:var(--card);padding:18px 20px}
.stat-card .s-label{font-size:13px;color:var(--text-dim)}
.stat-card .s-num{font-size:26px;font-weight:800;margin-top:6px}
.stat-card .s-sub{font-size:12px;color:var(--text-dim);margin-top:2px}
.stat-card.grad-border{border-color:transparent;background:linear-gradient(var(--bg-soft),var(--bg-soft)) padding-box,var(--grad) border-box}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.toolbar .form-control{max-width:240px}
.admin-table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:14px}
.admin-table{width:100%;border-collapse:collapse;min-width:900px;font-size:13.5px}
.admin-table th,.admin-table td{padding:12px 14px;border-bottom:1px solid var(--border);text-align:left;vertical-align:middle}
.admin-table thead th{background:rgba(255,255,255,.04);font-size:12.5px;color:var(--text-dim);font-weight:600;white-space:nowrap}
.admin-table tbody tr:hover{background:rgba(255,255,255,.02)}
.admin-table td{color:var(--text-2)}
.admin-table select{padding:6px 10px;border-radius:8px;border:1px solid var(--border);background:var(--bg-soft);color:var(--text);font-size:13px}
.admin-table .mini-btn{padding:5px 10px;border-radius:7px;font-size:12.5px;border:1px solid var(--border);color:var(--text-2);transition:.2s;margin-right:6px}
.admin-table .mini-btn:hover{color:#fff;border-color:var(--primary)}
.admin-table .mini-btn.danger:hover{color:var(--red);border-color:var(--red)}
.pkg-edit{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.tab-bar{display:flex;gap:4px;border-bottom:1px solid var(--border);margin-bottom:24px;overflow-x:auto}
.tab-bar button{padding:12px 20px;font-size:14.5px;color:var(--text-dim);border-bottom:2px solid transparent;white-space:nowrap;transition:.2s}
.tab-bar button:hover{color:#fff}
.tab-bar button.active{color:#fff;border-bottom-color:var(--primary)}

/* ---------- 登录页 ---------- */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;position:relative;overflow:hidden}
.login-wrap .orb-1{left:-120px;top:-120px}
.login-card{width:100%;max-width:400px;border:1px solid var(--border-strong);border-radius:20px;background:var(--bg-soft);padding:36px 32px;box-shadow:var(--shadow)}
.login-card .logo{justify-content:center;margin-bottom:22px}
.login-card h2{text-align:center;font-size:21px;font-weight:800;margin-bottom:6px}
.login-card .login-sub{text-align:center;color:var(--text-dim);font-size:13.5px;margin-bottom:26px}
.login-hint{margin-top:16px;padding:12px 14px;border-radius:10px;background:rgba(251,191,36,.08);border:1px solid rgba(251,191,36,.25);font-size:12.5px;color:var(--amber);text-align:center}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr);gap:14px}
  .step-card:nth-child(3)::after{display:none}
  .admin-stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .nav-links,.nav-cta{display:none}
  .nav-burger{display:flex}
  .section{padding:64px 0}
  .pricing-grid{grid-template-columns:1fr;max-width:460px;margin:0 auto}
  .pkg-edit{grid-template-columns:1fr}
}
@media (max-width:720px){
  .feature-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .step-card::after{display:none}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .order-info{grid-template-columns:1fr}
  .admin-shell{grid-template-columns:1fr}
  .admin-side{position:static;height:auto;flex-direction:row;align-items:center;padding:10px 14px;overflow-x:auto}
  .admin-side .logo{display:none}
  .admin-nav{display:flex;gap:4px;flex:none}
  .admin-nav a{white-space:nowrap;padding:9px 13px;margin:0}
  .admin-nav .side-bottom{display:none}
  .admin-main{padding:20px 16px 50px}
  .admin-stats{grid-template-columns:1fr 1fr;gap:12px}
  .admin-top h2{font-size:18px}
  .hero{padding:76px 0 60px}
  .hero-actions .btn{width:100%;max-width:280px}
  .cs-panel{right:14px;left:14px;width:auto;bottom:80px}
}
@media (max-width:420px){
  .footer-grid{grid-template-columns:1fr}
  .admin-stats{grid-template-columns:1fr}
}
/* ---------- 购买页套餐选择 ---------- */
.pkg-select{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.pkg-option{position:relative;padding:22px 20px;border:1px solid var(--border);border-radius:14px;background:var(--card);cursor:pointer;transition:.25s;text-align:left}
.pkg-option:hover{border-color:var(--border-strong);transform:translateY(-2px)}
.pkg-option.selected{border-color:var(--primary);background:rgba(139,92,255,.1);box-shadow:0 0 0 3px rgba(139,92,255,.15)}
.pkg-option .p-name{font-weight:700;font-size:16px;display:flex;align-items:center;gap:8px}
.pkg-option .p-price{font-size:22px;font-weight:800;margin-top:8px}
.pkg-option .p-price small{font-size:12.5px;color:var(--text-dim);font-weight:500}
.pkg-option .p-tag{font-size:12px;color:var(--text-dim);margin-top:4px}
.pkg-option .p-check{position:absolute;top:14px;right:14px;width:22px;height:22px;border-radius:50%;border:2px solid var(--border-strong);display:flex;align-items:center;justify-content:center;transition:.2s}
.pkg-option.selected .p-check{background:var(--grad);border-color:transparent}
.pkg-option.selected .p-check svg{width:12px;height:12px;color:#fff}
.pkg-option .p-check svg{width:12px;height:12px;color:transparent}
.pkg-option:disabled{opacity:.45;cursor:not-allowed}

/* 订单摘要 */
.order-summary{border:1px solid var(--border);border-radius:14px;background:var(--card);padding:22px;position:sticky;top:96px}
.order-summary h3{font-size:16px;font-weight:700;padding-bottom:14px;border-bottom:1px solid var(--border);margin-bottom:14px}
.sum-row{display:flex;justify-content:space-between;gap:12px;padding:8px 0;font-size:14px;color:var(--text-2)}
.sum-row.total{border-top:1px solid var(--border);margin-top:10px;padding-top:14px;color:var(--text);font-weight:700}
.sum-row.total span{color:var(--cyan);font-size:22px;font-weight:800}

/* ---------- 成功页 ---------- */
.success-hero{text-align:center;padding:30px 0 10px}
.success-hero .check-circle{width:84px;height:84px;margin:0 auto;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;box-shadow:0 16px 44px -12px rgba(52,211,153,.6)}
.success-hero .check-circle svg{width:40px;height:40px;color:#fff}
.success-hero h2{font-size:24px;font-weight:800;margin-top:20px}
.success-hero p{color:var(--text-dim);font-size:14.5px;margin-top:8px}

/* ---------- 帮助中心分类 ---------- */
.help-groups{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:44px}
.help-group{border:1px solid var(--border);border-radius:var(--radius);background:var(--card);padding:24px 22px;transition:.25s}
.help-group:hover{border-color:rgba(139,92,255,.5)}
.help-group .hg-icon{width:44px;height:44px;border-radius:12px;background:var(--grad-soft);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.help-group .hg-icon svg{width:22px;height:22px;color:var(--primary-2)}
.help-group h3{font-size:16px;font-weight:700}
.help-group p{color:var(--text-dim);font-size:13.5px;margin-top:6px}
.help-group a{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13.5px;font-weight:600;color:var(--cyan)}
.help-group a:hover{text-decoration:underline}

/* ---------- 后台提示 ---------- */
.warn-tip{display:flex;gap:10px;align-items:flex-start;padding:14px 16px;border-radius:12px;background:rgba(251,191,36,.08);border:1px solid rgba(251,191,36,.25);font-size:13px;color:var(--amber);margin-bottom:20px}
.warn-tip svg{width:18px;height:18px;flex:none;margin-top:2px}

/* ---------- 购买页双栏 ---------- */
.buy-layout{display:grid;grid-template-columns:1fr 340px;gap:28px;align-items:start}
@media (max-width:900px){.buy-layout{grid-template-columns:1fr}}

/* ---------- 下单成功订单信息表 ---------- */
.order-card .admin-table{min-width:0;font-size:13px}
.order-card .admin-table th,.order-card .admin-table td{padding:9px 10px}
@media (max-width:520px){.order-card .admin-table th,.order-card .admin-table td{padding:8px 5px;font-size:12px}}