/* ============================================================
 * 信源网 xinyuanwang.cn —— AI 科技深色主题
 * 设计基调：深空底 + 青蓝/紫渐变 + 玻璃拟态卡片 + 网格光晕
 * ============================================================ */
:root{
  --bg:#070b16; --bg-2:#0b1224; --panel:#0e1730; --panel-2:rgba(255,255,255,.04);
  --line:rgba(255,255,255,.09); --line-2:rgba(255,255,255,.14);
  --ink:#e7eefb; --ink-2:#c2cee6; --muted:#8b9bb4; --muted-2:#6b7a96;
  --cyan:#22d3ee; --blue:#3b82f6; --violet:#8b5cf6; --green:#34d399; --orange:#f59e0b; --red:#f87171;
  --grad:linear-gradient(120deg,#22d3ee,#3b82f6 55%,#8b5cf6);
  --grad-soft:linear-gradient(120deg,rgba(34,211,238,.16),rgba(139,92,246,.16));
  --radius:16px; --radius-sm:12px;
  --shadow:0 10px 40px rgba(2,6,23,.5); --glow:0 0 0 1px rgba(34,211,238,.25),0 8px 30px rgba(34,211,238,.12);
  --maxw:1200px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans",sans-serif;
  background:
    radial-gradient(900px 380px at 82% -120px,rgba(59,130,246,.20),transparent),
    radial-gradient(760px 360px at 6% -80px,rgba(139,92,246,.16),transparent),
    var(--bg);
  background-attachment:fixed;
  color:var(--ink); line-height:1.7; font-size:15px; -webkit-font-smoothing:antialiased;
}
/* 网格纹理叠加 */
body::before{content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:46px 46px;mask-image:radial-gradient(circle at 50% 0%,#000,transparent 70%)}
main,.site-head,.site-foot{position:relative;z-index:1}
a{color:var(--cyan);text-decoration:none}
a:hover{color:#7fe7f5}
h1,h2,h3,h4{line-height:1.3;font-weight:700}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.muted{color:var(--muted);font-size:13.5px}
.src{color:var(--muted-2);font-size:12.5px}
.empty{text-align:center;color:var(--muted);padding:48px 0;background:var(--panel-2);border:1px dashed var(--line);border-radius:var(--radius)}
.sec-mini{margin:26px 0 12px;color:var(--cyan);font-size:17px}

/* ---------- 页头 ---------- */
.site-head{position:sticky;top:0;z-index:900;background:rgba(7,11,22,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.head-in{display:flex;align-items:center;gap:16px;height:66px}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:var(--grad);color:#04121f;font-size:20px;font-weight:800;box-shadow:var(--glow)}
.logo-txt{font-size:21px;letter-spacing:.3px;color:var(--ink)}
.logo-txt b{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.logo-txt.light{color:#fff;font-size:18px}
.main-nav{display:flex;gap:2px;flex:1;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
.main-nav::-webkit-scrollbar{display:none}
.main-nav a{padding:8px 11px;border-radius:9px;color:var(--ink-2);font-size:14px;white-space:nowrap}
.main-nav a:hover{background:var(--panel-2);color:#fff}
.main-nav a.active{color:#fff;background:var(--grad-soft);font-weight:600}
.head-tools{display:flex;align-items:center;gap:8px}
.tool-link{font-size:13.5px;color:var(--ink-2);padding:7px 9px;border-radius:9px;white-space:nowrap}
.tool-link:hover{background:var(--panel-2);color:#fff}
.tool-link.ai-link{background:var(--grad);color:#04121f;font-weight:700;padding:8px 14px;border-radius:20px}
.tool-link.ai-link:hover{filter:brightness(1.08);color:#04121f}
.btn-member{border:1.5px solid var(--cyan);color:var(--cyan);padding:7px 15px;border-radius:20px;font-size:13.5px;white-space:nowrap;font-weight:600}
.btn-member:hover{background:var(--cyan);color:#04121f}
.btn-member.logged{border-color:var(--green);color:var(--green)}
.burger{display:none;background:none;border:none;font-size:24px;color:var(--ink);cursor:pointer}

/* ---------- 通用按钮 ---------- */
.btn{display:inline-block;padding:12px 26px;border-radius:24px;font-size:15px;font-weight:700;border:none;cursor:pointer;transition:.18s}
.btn-primary{background:var(--grad);color:#04121f}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-ghost{border:1.5px solid var(--line-2);color:var(--ink);background:var(--panel-2)}
.btn-ghost:hover{border-color:var(--cyan);color:#fff}
.btn-sm{padding:8px 16px;font-size:13.5px}

/* ---------- Hero ---------- */
.hero{padding:70px 0 50px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;top:30px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(139,92,246,.30),transparent 60%);filter:blur(20px);z-index:-1}
.hero h1{font-size:44px;letter-spacing:.5px;background:linear-gradient(120deg,#fff,#bfe9ff 60%,#c9b8ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{color:var(--ink-2);max-width:780px;margin:16px 0 28px;font-size:17px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
.hero-tags span{font-size:13px;color:var(--ink-2);background:var(--panel-2);border:1px solid var(--line);padding:6px 14px;border-radius:20px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:30px;align-items:center}

/* 数据看板 */
.dash-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:6px 0 44px}
.dash-card{display:flex;gap:12px;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px;transition:.18s}
.dash-card:hover{transform:translateY(-3px);border-color:var(--line-2);box-shadow:var(--glow)}
.dash-ico{font-size:26px}
.dash-label{font-size:12.5px;color:var(--muted)}
.dash-value{font-weight:800;font-size:16px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.dash-trend{font-size:12.5px}
.dash-trend.up{color:var(--green)} .dash-trend.down{color:var(--orange)}

/* ---------- 区块 ---------- */
.section{padding:46px 0}
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:22px;flex-wrap:wrap;gap:10px}
.section-head h2{font-size:26px}
.section-head h2::before{content:"";display:inline-block;width:5px;height:22px;background:var(--grad);border-radius:3px;margin-right:11px;vertical-align:-3px}
.section-head .more{font-size:13.5px;color:var(--cyan)}
.soft{background:linear-gradient(180deg,rgba(255,255,255,.025),transparent);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* 三/四列卡片 */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px;display:flex;flex-direction:column;gap:8px;box-shadow:var(--shadow);transition:.18s}
.card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--glow)}
.card h3{font-size:17px;color:#fff}
.card .ico{font-size:30px}
.card p{font-size:14px;color:var(--ink-2)}
.card-foot{margin-top:auto;padding-top:8px}
.feature-card .step{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:9px;background:var(--grad-soft);color:var(--cyan);font-weight:700;margin-bottom:10px}
.card-top{display:flex;gap:6px;flex-wrap:wrap}
.tag{font-size:12px;padding:3px 11px;border-radius:12px;font-weight:600}
.tag-blue{background:rgba(59,130,246,.16);color:#7fb0ff}
.tag-cyan{background:rgba(34,211,238,.16);color:#7fe7f5}
.tag-violet{background:rgba(139,92,246,.18);color:#c4b1ff}
.tag-green{background:rgba(52,211,153,.16);color:#7af0c4}
.tag-orange{background:rgba(245,158,11,.16);color:#ffd28a}
.tag-red{background:rgba(248,113,113,.16);color:#ffb0b0}
.tag-gray{background:rgba(255,255,255,.06);color:var(--muted)}

/* 筛选条 */
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:22px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:14px}
.filter-bar button{padding:9px 16px;border:1px solid var(--line);background:var(--bg-2);color:var(--ink-2);border-radius:20px;cursor:pointer;font-size:13.5px}
.filter-bar button.on{border-color:var(--cyan);color:#04121f;background:var(--cyan);font-weight:700}
.filter-bar select,.filter-bar input{padding:10px 12px;border:1px solid var(--line);border-radius:9px;font-size:14px;background:var(--bg-2);color:var(--ink);min-width:130px}
.filter-bar input{flex:1;min-width:180px}
.filter-bar select:focus,.filter-bar input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 2px rgba(34,211,238,.2)}

/* 信源说明条 / CTA */
.cta-box{background:var(--grad);border-radius:var(--radius);padding:38px;margin:44px 0;color:#04121f;text-align:center}
.cta-box h2{color:#04121f;font-size:26px}
.cta-box p{color:rgba(4,18,31,.82);margin:10px 0 22px;font-size:15px}
.cta-box .btn{background:#04121f;color:#fff}
.cta-box .btn:hover{background:#0a2036}
.source-note{background:linear-gradient(135deg,#0e1730,#111a3a);border:1px solid var(--line-2);border-radius:var(--radius);padding:30px;margin:40px 0}
.source-note h3{font-size:19px;margin-bottom:10px;color:#fff}
.source-note p{opacity:.9;font-size:14px;color:var(--ink-2)}

/* 页脚 */
.site-foot{background:linear-gradient(180deg,#060a14,#04070f);color:#9fb0d0;border-top:1px solid var(--line);margin-top:60px}
.foot-top{display:grid;grid-template-columns:1.3fr 1fr 1.3fr;gap:30px;padding:40px 0 26px}
.foot-tag{font-size:13px;margin-top:8px;opacity:.85;color:var(--muted)}
.foot-contact div,.foot-links div{margin-bottom:8px;font-size:14px}
.foot-links a{color:#7fb0ff}
.foot-bottom{border-top:1px solid var(--line);padding:16px 0 24px;font-size:12.5px;color:var(--muted)}
.foot-disc{opacity:.7;margin-top:6px;max-width:920px}

/* 会员 / 登录 */
.auth-box{max-width:480px;margin:40px auto;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:30px}
.auth-tabs{display:flex;gap:8px;margin-bottom:20px}
.auth-tabs button{flex:1;padding:11px;border:1.5px solid var(--line);background:var(--bg-2);border-radius:10px;font-size:15px;cursor:pointer;color:var(--muted)}
.auth-tabs button.on{border-color:var(--cyan);color:#fff;background:var(--grad-soft);font-weight:700}
.auth-box label{display:block;font-size:13px;color:var(--muted);margin:12px 0 4px}
.auth-box input,.auth-box select{width:100%;padding:12px;border:1px solid var(--line);border-radius:9px;font-size:15px;background:var(--bg-2);color:var(--ink)}
.auth-box input:focus,.auth-box select:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 2px rgba(34,211,238,.2)}
.auth-box .btn{width:100%;margin-top:18px}
.auth-msg,.form-msg{font-size:13px;margin-top:10px;min-height:18px}
.auth-msg.ok,.form-msg.ok{color:var(--green)} .auth-msg.err,.form-msg.err{color:var(--red)}
.member-panel{display:none}
.member-welcome{background:var(--grad-soft);border:1px solid var(--line-2);border-radius:var(--radius);padding:22px;margin-bottom:18px}
.member-feats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.member-feats .card{background:var(--bg-2)}

/* 表格 */
.data-table{border-collapse:collapse;width:100%;font-size:13px;margin-top:6px}
.data-table th,.data-table td{border:1px solid var(--line);padding:8px 10px;text-align:left}
.data-table th{background:rgba(34,211,238,.1);color:#bfe9ff}
.data-table.wide{font-size:14px}

/* 代码块 */
.code-block{background:#04121f;color:#cfe8ff;border:1px solid var(--line);border-radius:10px;padding:16px 18px;font-family:Consolas,Menlo,monospace;font-size:13px;overflow:auto;margin:12px 0;white-space:pre}

/* 流程步骤 */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.flow-step{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;position:relative}
.flow-step .n{width:30px;height:30px;border-radius:50%;background:var(--grad);color:#04121f;display:grid;place-items:center;font-weight:800;margin-bottom:10px}
.flow-step h4{font-size:16px;color:#fff;margin-bottom:6px}
.flow-step p{font-size:13px;color:var(--muted)}

/* 价格/套餐 */
.plan{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;gap:8px;position:relative}
.plan.hot{border-color:var(--cyan);box-shadow:var(--glow)}
.plan .price{font-size:30px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.plan ul{list-style:none;margin:8px 0;display:flex;flex-direction:column;gap:8px}
.plan li{font-size:14px;color:var(--ink-2);padding-left:22px;position:relative}
.plan li::before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:700}
.plan .badge{position:absolute;top:-10px;right:16px;background:var(--grad);color:#04121f;font-size:12px;font-weight:700;padding:3px 12px;border-radius:20px}

/* 案例 */
.case-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.case-card .metric{font-size:26px;font-weight:800;color:var(--cyan)}
.case-card .who{font-size:13px;color:var(--muted);margin-top:8px}

/* 联盟成员 */
.member-logo{display:inline-grid;place-items:center;min-width:120px;height:60px;background:var(--bg-2);border:1px solid var(--line);border-radius:12px;font-size:14px;color:var(--ink-2);padding:0 14px}

/* 文章/资讯 */
.article{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:flex;flex-direction:column;gap:8px}
.article .meta{display:flex;gap:10px;align-items:center;font-size:12.5px;color:var(--muted)}
.article h3{font-size:17px;color:#fff}
.article p{font-size:14px;color:var(--ink-2)}
.art-body{max-width:820px;margin:0 auto;line-height:1.9;font-size:16px;color:var(--ink-2)}
.art-body h2{color:#fff;margin:26px 0 12px;font-size:22px}
.art-body h3{color:#bfe9ff;margin:18px 0 8px}
.art-body p{margin-bottom:14px}
.art-body ul{margin:0 0 14px 22px} .art-body li{margin-bottom:6px}
.art-body blockquote{background:var(--grad-soft);border-left:3px solid var(--cyan);padding:12px 16px;border-radius:0 10px 10px 0;margin:14px 0;color:var(--ink)}

/* 表单通用 */
.form-row{display:flex;gap:12px;flex-wrap:wrap}
.form-row>*{flex:1;min-width:200px}
.field label{display:block;font-size:13px;color:var(--muted);margin:12px 0 4px}
.field input,.field select,.field textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:9px;font-size:15px;background:var(--bg-2);color:var(--ink);font-family:inherit}
.field textarea{min-height:96px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 2px rgba(34,211,238,.2)}
.form-box{max-width:640px;margin:30px auto;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}

/* 后台 */
.admin-layout{display:grid;grid-template-columns:220px 1fr;gap:20px;margin-top:20px}
.admin-side{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:14px;height:fit-content}
.admin-side a{display:block;padding:10px 12px;border-radius:9px;color:var(--ink-2);font-size:14px}
.admin-side a:hover,.admin-side a.active{background:var(--grad-soft);color:#fff}
.admin-main{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.admin-stat{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:20px}
.admin-stat .card{background:var(--bg-2)}
.admin-table{width:100%;border-collapse:collapse;font-size:13px}
.admin-table th,.admin-table td{border:1px solid var(--line);padding:9px 10px;text-align:left}
.admin-table th{background:rgba(34,211,238,.1);color:#bfe9ff}

/* 后台顶栏 / 表单 / 徽章 */
.admin-topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding:12px 16px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);flex-wrap:wrap;gap:10px}
.admin-topbar-actions{display:flex;gap:8px;flex-wrap:wrap}
.a-form{display:flex;flex-direction:column;gap:10px;background:var(--bg-2);border:1px solid var(--line);border-radius:12px;padding:16px;margin-bottom:8px}
.a-form label{font-size:13px;color:var(--muted);margin-top:4px}
.a-form input,.a-form textarea,.a-form select{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:9px;font-size:14px;background:var(--bg);color:var(--ink);font-family:inherit}
.a-form textarea{min-height:78px;resize:vertical}
.a-form input:focus,.a-form textarea:focus,.a-form select:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 2px rgba(34,211,238,.18)}
.a-row{display:flex;gap:10px;flex-wrap:wrap}
.a-row > *{flex:1;min-width:120px}
.a-card{background:var(--bg-2);border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin:6px 0;color:var(--ink-2);font-size:14px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.a-card code,.admin-main code{background:rgba(34,211,238,.12);color:#9fe9f7;padding:1px 6px;border-radius:6px;font-size:12.5px}
.mod-tag{display:inline-block;background:var(--grad);color:#04121f;font-weight:700;font-size:12px;padding:4px 12px;border-radius:20px;margin-bottom:4px}
.badge{display:inline-block;font-size:12px;font-weight:600;padding:2px 10px;border-radius:20px}
.badge.ok{background:rgba(52,211,153,.18);color:#6ee7b7}
.badge.warn{background:rgba(251,191,36,.18);color:#fcd34d}

/* 悬浮 AI 信源助手 */
.sf-wrap{position:fixed;right:18px;bottom:18px;z-index:1200;display:flex;flex-direction:column;align-items:flex-end;gap:12px}
.sf-fab{width:56px;height:56px;border-radius:50%;border:none;background:var(--grad);color:#04121f;font-size:24px;cursor:pointer;box-shadow:var(--glow);flex:none}
.sf-fab:hover{transform:translateY(-2px)}
.sf-chatbox{display:none;flex-direction:column;width:340px;max-width:92vw;background:var(--panel);border:1px solid var(--line-2);border-radius:16px;overflow:hidden;box-shadow:var(--shadow)}
.sf-chat-head{display:flex;align-items:center;gap:10px;padding:13px 15px;background:var(--grad);color:#04121f}
.sf-chat-head .ava{width:30px;height:30px;border-radius:8px;background:#04121f;color:#fff;display:grid;place-items:center;font-size:13px;font-weight:700;flex:none}
.sf-chat-head .ttl{writing-mode:horizontal-tb;white-space:nowrap;font-weight:700;font-size:15px;flex:1;color:#04121f}
.sf-chat-head .cls{cursor:pointer;font-size:22px;line-height:1;color:#04121f;flex:none}
.sf-chat-body{max-height:320px;overflow:auto;padding:14px;display:flex;flex-direction:column;gap:10px;background:var(--bg-2)}
.sf-msg{padding:9px 12px;border-radius:12px;font-size:13.5px;max-width:86%;line-height:1.5;word-break:break-word}
.sf-msg.bot{background:var(--panel);border:1px solid var(--line);color:var(--ink-2);align-self:flex-start}
.sf-msg.me{background:var(--grad);color:#04121f;align-self:flex-end}
.sf-chat-foot{display:flex;gap:8px;padding:10px;border-top:1px solid var(--line)}
.sf-chat-foot input{flex:1;min-width:0;padding:9px 12px;border:1px solid var(--line);border-radius:9px;background:var(--bg);color:var(--ink);font-size:14px;outline:none}
.sf-chat-foot input:focus{border-color:var(--cyan)}
.sf-send{padding:9px 16px;border:none;border-radius:9px;background:var(--grad);color:#04121f;font-weight:700;cursor:pointer;flex:none}

/* 支付弹窗 */
.pay-mask{position:fixed;inset:0;background:rgba(2,8,15,.72);backdrop-filter:blur(4px);z-index:1500;display:none;align-items:center;justify-content:center;padding:20px}
.pay-mask.show{display:flex}
.pay-modal{width:440px;max-width:100%;max-height:90vh;overflow:auto;background:var(--panel);border:1px solid var(--line-2);border-radius:18px;box-shadow:var(--shadow)}
.pay-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line);background:linear-gradient(120deg,rgba(34,211,238,.12),rgba(139,92,246,.12))}
.pay-head h3{color:#fff;font-size:17px;margin:0}
.pay-head .cls{cursor:pointer;font-size:24px;color:var(--muted);line-height:1}
.pay-plan{padding:14px 20px;border-bottom:1px solid var(--line);background:var(--bg-2);display:flex;justify-content:space-between;align-items:center;gap:12px}
.pay-plan .pn{color:#fff;font-weight:700;font-size:15px}
.pay-plan .pp{color:var(--cyan);font-weight:700;font-size:15px;white-space:nowrap}
.pay-tabs{display:flex;gap:8px;padding:14px 20px 0}
.pay-tab{flex:1;padding:10px;text-align:center;border:1px solid var(--line);border-radius:10px;background:var(--bg-2);color:var(--muted);font-size:14px;font-weight:600;cursor:pointer;transition:.15s}
.pay-tab.on{background:var(--grad);color:#04121f;border-color:transparent}
.pay-body{padding:18px 20px 22px;display:none}
.pay-body.on{display:block}
.pay-qr{display:flex;flex-direction:column;align-items:center;gap:10px;background:var(--bg-2);border:1px solid var(--line);border-radius:14px;padding:18px}
.pay-qr img{width:180px;height:180px;object-fit:contain;border-radius:10px;background:#fff;padding:8px}
.pay-qr .cap{color:#fff;font-weight:600;font-size:14px}
.pay-info{background:var(--bg-2);border:1px solid var(--line);border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:10px}
.pay-info .row{display:flex;justify-content:space-between;gap:12px;font-size:14px}
.pay-info .row .k{color:var(--muted);white-space:nowrap}
.pay-info .row .v{color:var(--ink);text-align:right;font-weight:600;word-break:break-all}
.pay-note{margin-top:12px;font-size:12.5px;color:var(--muted);line-height:1.6}

/* 二维码展示（页脚 / 关于页） */
.qr-grid{display:flex;gap:18px;flex-wrap:wrap;margin-top:12px}
.qr-item{display:flex;flex-direction:column;align-items:center;gap:8px;background:var(--bg-2);border:1px solid var(--line);border-radius:14px;padding:14px;width:150px}
.qr-item img{width:120px;height:120px;object-fit:contain;background:#fff;border-radius:10px;padding:6px}
.qr-item .cap{color:#fff;font-size:13px;font-weight:600;text-align:center}

/* 提示 toast */
.toast{position:fixed;left:50%;top:20px;transform:translateX(-50%) translateY(-20px);background:var(--panel);border:1px solid var(--cyan);color:#fff;padding:12px 22px;border-radius:12px;z-index:2000;opacity:0;transition:.25s;box-shadow:var(--glow)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* 响应式 */
@media(max-width:1024px){.hero-grid{grid-template-columns:1fr}.grid-4,.dash-grid{grid-template-columns:repeat(2,1fr)}.flow{grid-template-columns:repeat(2,1fr)}.admin-stat{grid-template-columns:repeat(2,1fr)}}
@media(max-width:860px){
  .burger{display:block}
  .main-nav{display:none;position:absolute;top:66px;left:0;right:0;background:var(--bg-2);flex-direction:column;padding:10px 20px 16px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .main-nav.open{display:flex}
  .main-nav a{padding:11px 4px;border-bottom:1px solid var(--line)}
  .tool-link:not(.ai-link){display:none}
  .grid-4,.grid-3,.grid-2,.dash-grid,.flow,.member-feats,.admin-stat,.foot-top,.admin-layout{grid-template-columns:1fr}
  .admin-side{display:flex;gap:8px;flex-wrap:wrap}
  .admin-side a{flex:1}
  .hero h1{font-size:30px}
  .hero{padding:44px 0 34px}
  .section{padding:34px 0}
  .cta-box{padding:26px}
  .section-head h2{font-size:22px}
}

/* 问答库 */
.qna-search{display:flex;align-items:center;gap:14px;margin-bottom:16px;flex-wrap:wrap}
.qna-search input{flex:1;min-width:240px;padding:13px 16px;border-radius:11px;border:1px solid var(--line);background:var(--bg);color:var(--ink);font-size:15px;outline:none}
.qna-search input:focus{border-color:var(--cyan)}
.qna-count{color:var(--muted);font-size:14px;white-space:nowrap}
.qna-item{background:var(--panel);border:1px solid var(--line);border-radius:12px;margin-bottom:10px;overflow:hidden;transition:border-color .2s}
.qna-item[open]{border-color:var(--line-2)}
.qna-item summary{display:flex;align-items:center;gap:10px;cursor:pointer;padding:15px 18px;color:#fff;font-weight:600;font-size:15px;list-style:none}
.qna-item summary::-webkit-details-marker{display:none}
.qna-item .qna-cat{flex:none;font-size:12px;font-weight:600;color:#04121f;background:var(--grad);padding:3px 9px;border-radius:20px}
.qna-item .qna-ar{margin-left:auto;color:var(--muted);transition:transform .2s;font-size:13px}
.qna-item[open] .qna-ar{transform:rotate(180deg)}
.qna-item .qna-a{padding:0 18px 16px 18px;color:var(--muted);font-size:14.5px;line-height:1.7;border-top:1px dashed var(--line);margin:0 0 0 0;padding-top:14px}
@media (max-width:640px){
  .qna-item summary{font-size:14px;padding:13px 14px}
  .qna-item .qna-cat{display:none}
}