/* =========================================================
   抖同城·小微AI开放平台  全站样式（唯一事实源）
   腾讯大厂风：科技蓝紫 / 克制留白 / 线性图标 / 统一圆角阴影
   改主题色只改 :root 变量
   ========================================================= */
:root{
  --brand:#3B6EF6; --brand-d:#2B57D6; --brand-l:#5B86FF;
  --purple:#6E5BFF; --cyan:#17B8D6;
  --grad:linear-gradient(120deg,#3B6EF6 0%,#5B7CFF 45%,#6E5BFF 100%);
  --grad-soft:linear-gradient(135deg,#EEF3FF 0%,#F2EFFF 100%);
  --green:#16B364; --orange:#FF8A00; --red:#F04438; --gold:#F7A22B;
  --ink:#141A2E; --ink2:#3C4459; --sub:#6B7180;
  --line:#E8EBF2; --line2:#DCE1EC;
  --bg:#F6F8FC; --paper:#FFFFFF; --soft:#F7F9FE;
  --radius:16px; --radius-s:12px; --radius-l:22px;
  --maxw:1200px;
  --shadow-sm:0 2px 10px rgba(20,26,46,.05);
  --shadow:0 12px 34px rgba(31,56,122,.10);
  --shadow-lg:0 26px 70px rgba(31,56,122,.16);
  --ring:0 0 0 4px rgba(59,110,246,.12);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper);line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-d)}
ul{list-style:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
h1,h2,h3,h4,h5{color:var(--ink);letter-spacing:-.3px;line-height:1.25}
section{padding:84px 0}
section.soft{background:var(--soft)}
section.gradsoft{background:var(--grad-soft)}

/* ---------- 图标 ---------- */
.ic-svg{display:inline-block;vertical-align:-.18em;flex:none}
.icon-tile{width:48px;height:48px;border-radius:13px;display:flex;align-items:center;justify-content:center;color:#fff;background:var(--grad);box-shadow:0 8px 18px rgba(59,110,246,.28);flex:none}
.icon-tile.soft{background:#EDF2FF;color:var(--brand);box-shadow:none}
.icon-tile.g{background:#E8F8F0;color:var(--green);box-shadow:none}
.icon-tile.o{background:#FFF3E3;color:#E0780A;box-shadow:none}
.icon-tile.p{background:#F0EDFF;color:var(--purple);box-shadow:none}
.icon-tile.c{background:#E4F8FC;color:#0E94AD;box-shadow:none}
.icon-tile.gray{background:#F0F2F6;color:var(--sub);box-shadow:none}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:7px;justify-content:center;border:1.5px solid transparent;border-radius:11px;padding:11px 22px;font-size:14.5px;font-weight:600;cursor:pointer;transition:all .22s;font-family:inherit;white-space:nowrap;line-height:1.3}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(59,110,246,.28)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(59,110,246,.36)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line2)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:#F4F7FF}
.btn-sm{padding:8px 16px;font-size:13.5px;border-radius:9px}
.btn-white{background:#fff;color:var(--brand);font-weight:700}
.btn-white:hover{color:var(--brand-d);transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,0,0,.18)}
.btn-outline-w{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-w:hover{background:rgba(255,255,255,.18);color:#fff}

/* ---------- 导航 ---------- */
.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.86);backdrop-filter:saturate(180%) blur(16px);border-bottom:1px solid rgba(232,235,242,.85)}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:0 24px;height:68px;display:flex;align-items:center;gap:26px}
.logo{display:flex;align-items:center;gap:11px;flex:none}
.logo .badge{width:38px;height:38px;border-radius:11px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:800;box-shadow:0 6px 14px rgba(59,110,246,.3)}
.logo span{font-size:16.5px;font-weight:800;color:var(--ink);line-height:1.15}
.logo small{display:block;font-size:10px;font-weight:500;color:var(--sub);letter-spacing:.3px}
.nav-menu{display:flex;gap:3px;margin-left:auto}
.nav-menu a{padding:8px 12px;border-radius:9px;font-size:14.5px;color:var(--ink2);font-weight:500;transition:all .18s}
.nav-menu a:hover{background:#F1F5FF;color:var(--brand)}
.nav-menu a.active{background:#EDF2FF;color:var(--brand);font-weight:700}
.nav-cta{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{display:none;background:none;border:none;font-size:22px;color:var(--ink);cursor:pointer;padding:4px 8px}

/* ---------- Hero ---------- */
.hero{position:relative;background:
  radial-gradient(1100px 520px at 82% -12%,rgba(110,91,255,.14) 0,transparent 62%),
  radial-gradient(900px 480px at 8% 0%,rgba(59,110,246,.12) 0,transparent 55%),
  linear-gradient(180deg,#fff 0,#F6F8FC 100%);padding:88px 0 92px;overflow:hidden}
.hero::after{content:"";position:absolute;bottom:-160px;left:50%;transform:translateX(-50%);width:1200px;height:320px;background:radial-gradient(ellipse,rgba(59,110,246,.08),transparent 70%);pointer-events:none}
.hero .wrap{display:grid;grid-template-columns:1.06fr .94fr;gap:52px;align-items:center;position:relative;z-index:1}
.eyebrow{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:700;letter-spacing:2.4px;color:var(--brand);text-transform:uppercase;margin-bottom:18px}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad)}
.hero h1{font-size:50px;font-weight:800;letter-spacing:-1.5px;margin-bottom:20px}
.hero h1 .grad,.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:17.5px;color:var(--sub);margin:0 0 30px;max-width:560px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:14px;margin-top:46px;flex-wrap:wrap}
.hero-stats>div{background:rgba(255,255,255,.75);border:1px solid var(--line);border-radius:var(--radius-s);padding:14px 20px;min-width:110px;box-shadow:var(--shadow-sm)}
.hero-stats b{display:block;font-size:29px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.1}
.hero-stats span{font-size:12.5px;color:var(--sub)}

/* 对话演示卡 */
.phone{background:var(--paper);border-radius:28px;box-shadow:var(--shadow-lg);border:1px solid #EDF0F7;padding:22px;position:relative}
.phone::before{content:"";position:absolute;inset:-16px -16px auto auto;width:150px;height:150px;background:radial-gradient(circle,rgba(110,91,255,.2),transparent 70%);border-radius:50%;z-index:-1}
.bubble{border-radius:18px;padding:13px 17px;font-size:14px;margin-bottom:13px;max-width:88%;line-height:1.6}
.bubble.user{background:#F2F4F8;color:var(--ink);border-top-left-radius:6px;margin-left:auto}
.bubble.ai{background:var(--grad);color:#fff;border-top-right-radius:6px;box-shadow:0 8px 18px rgba(59,110,246,.26)}
.minicard{border:1.5px solid #D4DFFB;border-radius:15px;padding:15px 17px;background:#FBFCFF;margin:10px 0 13px;font-size:13.5px}
.minicard .tag{color:var(--brand);font-weight:700;font-size:12.5px;display:flex;align-items:center;gap:6px}
.minicard .row{display:flex;justify-content:space-between;margin-top:9px;color:var(--ink2)}
.minicard b{color:var(--ink)}
.paybtn{background:var(--grad);color:#fff;text-align:center;border-radius:12px;padding:12px;font-weight:600;font-size:14px;margin-top:6px;cursor:pointer}

/* ---------- 动态对话演示 dc-* ---------- */
.dc-phone{background:var(--paper);border-radius:28px;box-shadow:var(--shadow-lg);border:1px solid #EDF0F7;padding:20px;position:relative}
.dc-phone::before{content:"";position:absolute;inset:-16px -16px auto auto;width:150px;height:150px;background:radial-gradient(circle,rgba(110,91,255,.2),transparent 70%);border-radius:50%;z-index:-1}
.dc-status{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--ink);margin:0 2px 14px}
.dc-status em{font-style:normal;margin-left:auto;font-weight:500;color:#9AA2B5;font-size:11.5px}
.dc-live{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 3px rgba(22,179,100,.16);animation:dcpulse 1.8s infinite}
@keyframes dcpulse{0%,100%{box-shadow:0 0 0 3px rgba(22,179,100,.16)}50%{box-shadow:0 0 0 6px rgba(22,179,100,.05)}}
.dc-stage{height:438px;overflow:hidden;position:relative}
.dc-msg{display:flex;margin-bottom:13px;opacity:0;transform:translateY(10px);transition:opacity .4s ease,transform .4s ease}
.dc-msg.show{opacity:1;transform:none}
.dc-msg.leaving{opacity:0!important;transform:translateY(-8px)!important;transition:opacity .4s ease,transform .4s ease}
.dc-msg.user{justify-content:flex-end}
.dc-bub{border-radius:18px;padding:12px 16px;font-size:13.5px;line-height:1.6;display:inline-block;max-width:92%}
.dc-msg.user .dc-bub{background:#F2F4F8;color:var(--ink);border-top-left-radius:6px}
.dc-msg.ai .dc-bub{background:var(--grad);color:#fff;border-top-right-radius:6px;box-shadow:0 8px 18px rgba(59,110,246,.26)}
.dc-caret{display:inline-block;width:2px;height:14px;background:currentColor;margin-left:2px;vertical-align:-2px;animation:dccaret .9s steps(1) infinite}
@keyframes dccaret{0%,49%{opacity:1}50%,100%{opacity:0}}
.dc-typing{display:inline-flex;gap:4px;align-items:center;padding:15px 18px}
.dc-typing i{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.85);animation:dotbounce 1.2s infinite}
.dc-typing i:nth-child(2){animation-delay:.18s}
.dc-typing i:nth-child(3){animation-delay:.36s}
@keyframes dotbounce{0%,60%,100%{transform:translateY(0);opacity:.55}30%{transform:translateY(-4px);opacity:1}}
.dc-card{border:1.5px solid #D4DFFB;border-radius:15px;padding:15px 17px;background:#FBFCFF;margin:4px 0 13px;font-size:13.5px;opacity:0;transform:translateY(10px) scale(.99);transition:opacity .42s ease,transform .42s ease}
.dc-card.show,.dc-card.dc-pop{opacity:1;transform:none}
.dc-card.preview{border-color:#F3D8A6;background:#FFFBF3}
.dc-tag{color:var(--brand);font-weight:700;font-size:12.5px;margin-bottom:9px;display:flex;align-items:center;gap:6px}
.dc-card.preview .dc-tag{color:#C07A10}
.dc-title{font-weight:800;font-size:15px;color:var(--ink);margin-bottom:10px}
.dc-row{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:8px;color:var(--ink2)}
.dc-row b{color:var(--ink);font-weight:700;white-space:nowrap}
.dc-star{color:#F5A524}
.dc-acts{display:flex;gap:11px;margin:2px 0 12px;opacity:0;transform:translateY(10px);transition:opacity .42s ease,transform .42s ease}
.dc-acts.show,.dc-acts.dc-pop{opacity:1;transform:none}
.dc-btn{flex:1;text-align:center;border-radius:12px;padding:12px;font-weight:700;font-size:14px;cursor:default}
.dc-btn.primary{background:var(--grad);color:#fff;box-shadow:0 8px 18px rgba(59,110,246,.26)}
.dc-btn.ghost{background:#F1F3F8;color:#5A6278}
@media (max-width:520px){.dc-stage{height:400px}.dc-bub{font-size:13px}}

/* ---------- 商户场景 / 命令示例（WorkBuddy） ---------- */
.scene-card{display:flex;flex-direction:column;gap:12px}
.scene-card .ic{width:50px;height:50px}
.scene-card p{color:var(--sub);font-size:14px;line-height:1.7;margin:0}
.scene-card .scene-cmds{margin-top:auto;padding-top:12px;border-top:1px dashed var(--line2);display:flex;flex-direction:column;gap:8px}
.scene-cmds .q{font-size:13px;color:var(--ink2);background:#F5F8FF;border-left:3px solid var(--brand);border-radius:0 8px 8px 0;padding:8px 12px;line-height:1.55}
.cmd-tabs{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:30px}
.cmd-tab{border:1.5px solid var(--line2);background:#fff;color:var(--ink2);border-radius:999px;padding:9px 20px;font-size:14px;font-weight:600;cursor:pointer;font-family:inherit;transition:all .18s}
.cmd-tab:hover{border-color:var(--brand);color:var(--brand)}
.cmd-tab.on{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 6px 14px rgba(59,110,246,.28)}
.cmd-panel{display:none;max-width:920px;margin:0 auto}
.cmd-panel.on{display:block;animation:cmdfade .35s ease}
@keyframes cmdfade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.cmd-list{display:flex;flex-direction:column;gap:13px}
.cmd-item{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 20px;box-shadow:var(--shadow-sm)}
.cmd-item .cmd-ic{flex-shrink:0;width:40px;height:40px;border-radius:11px;background:#EDF2FF;color:var(--brand);display:flex;align-items:center;justify-content:center}
.cmd-item.wo .cmd-ic{background:#FFF3E3;color:#E0780A}
.cmd-item .cmd-body{flex:1;min-width:0}
.cmd-say{font-size:14.5px;color:var(--ink);font-weight:600;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.cmd-say .say-q{font-family:inherit}
.cmd-do{font-size:13px;color:var(--sub);margin-top:5px;line-height:1.6}
.cmd-type{flex-shrink:0;font-size:11.5px;font-weight:700;padding:3px 10px;border-radius:999px}
.cmd-type.ro{background:#E8F8F0;color:#0B7A45}
.cmd-type.wo{background:#FFF3E3;color:#C06A0A}
.cmd-note{text-align:center;color:var(--sub);font-size:13.5px;margin-top:22px}

/* 内页小标题区 */
.subhero{background:
  radial-gradient(900px 380px at 88% -10%,rgba(110,91,255,.13),transparent 60%),
  linear-gradient(180deg,#fff,#F6F8FC);padding:68px 0 54px;border-bottom:1px solid var(--line)}
.subhero h1{font-size:40px;font-weight:800;letter-spacing:-1px}
.subhero h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.subhero .lead{font-size:16.5px;color:var(--sub);margin-top:12px}

/* ---------- 区块标题 ---------- */
.sec-hd{text-align:center;max-width:760px;margin:0 auto 52px}
.sec-hd .kicker{display:inline-block;font-size:12px;font-weight:700;letter-spacing:2px;color:var(--purple);background:#F0EDFF;padding:5px 14px;border-radius:999px;margin-bottom:16px;text-transform:uppercase}
.sec-hd h2{font-size:34px;font-weight:800;letter-spacing:-.8px;margin-bottom:14px}
.sec-hd p{color:var(--sub);font-size:16px}

/* ---------- 栅格 / 卡片 ---------- */
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s,border-color .25s}
.card.lift:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#D6E0FB}
.hero-deco{position:absolute;inset:0;pointer-events:none;background:radial-gradient(420px 200px at 50% 118%,rgba(110,91,255,.10),transparent 70%)}
.ph-status{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:#fff;margin:-6px -6px 16px;padding:12px 16px;background:rgba(255,255,255,.14);border-radius:14px 14px 0 0}
.ph-status span{width:7px;height:7px;border-radius:50%;background:#7BE0A8;box-shadow:0 0 0 3px rgba(123,224,168,.25)}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#D4DFFB}
.card h3{font-size:19px;margin:16px 0 10px}
.card p{color:var(--sub);font-size:14.5px}
.card ul{margin-top:8px}
.card ul li{position:relative;padding:7px 0 7px 24px;color:var(--ink2);font-size:14.5px;line-height:1.6}
.card ul li::before{content:"";position:absolute;left:2px;top:14px;width:8px;height:8px;border-radius:50%;background:var(--brand)}
.card .ic{font-size:24px}
.card code{font-family:"SFMono-Regular",Consolas,Menlo,monospace;font-size:13px}
code{font-family:"SFMono-Regular",Consolas,Menlo,monospace;background:#F2F5FB;padding:2px 8px;border-radius:7px;font-size:13px;color:var(--brand-d)}

/* ---------- 标签 ---------- */
.chip{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;padding:5px 13px;border-radius:999px;background:#F0F2F6;color:var(--sub)}
.chip.blue{background:#EDF2FF;color:var(--brand)}
.chip.green{background:#E8F8F0;color:var(--green)}
.chip.orange{background:#FFF3E3;color:#D47300}
.chip.gray{background:#F0F2F6;color:var(--sub)}
.chip.red{background:#FEECEB;color:var(--red)}
.chip.purple{background:#F0EDFF;color:var(--purple)}
.dot{width:8px;height:8px;border-radius:50%;display:inline-block}
.dot.g{background:var(--green);box-shadow:0 0 0 4px rgba(22,179,100,.15)}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.steps.five{grid-template-columns:repeat(5,1fr)}
.step{position:relative;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.step .n{width:42px;height:42px;border-radius:12px;background:var(--grad);color:#fff;font-weight:800;font-size:18px;display:flex;align-items:center;justify-content:center;margin-bottom:16px;box-shadow:0 8px 16px rgba(59,110,246,.28)}
.step h4{font-size:16.5px;margin-bottom:8px}
.step p{font-size:13.5px;color:var(--sub)}
.step .flag{display:inline-block;margin-top:12px;font-size:12px;color:var(--brand);background:#EDF2FF;padding:3px 11px;border-radius:999px;font-weight:600}

/* ---------- 提示条 ---------- */
.notice{border-radius:var(--radius-s);padding:16px 20px;font-size:14px;margin:20px 0;display:flex;gap:12px;align-items:flex-start}
.notice.info{background:#EDF2FF;color:#2847A8;border:1px solid #D4E0FB}
.notice.warn{background:#FFF7E8;color:#9A6200;border:1px solid #FCE3B0}
.notice.ok{background:#E8F8F0;color:#0B7A45;border:1px solid #BCE8D2}
.notice.danger{background:#FDECEA;color:#B42318;border:1px solid #F3C9C4}
.notice .ic{flex:none;display:flex;align-items:center}
.notice .ic .ic-svg{width:19px;height:19px}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
table{width:100%;border-collapse:collapse;font-size:14px;min-width:600px}
th{background:#F8FAFE;color:var(--ink2);font-weight:700;text-align:left;padding:14px 16px;font-size:13px;white-space:nowrap;border-bottom:1px solid var(--line)}
td{padding:14px 16px;border-bottom:1px solid #F1F3F8;vertical-align:middle}
tbody tr:last-child td{border-bottom:0}
tbody tr{transition:background .15s}
tbody tr:hover{background:#F8FAFF}

/* ---------- 行业类目 ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(272px,1fr));gap:18px}
.cat{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:all .25s;box-shadow:var(--shadow-sm)}
.cat:hover{border-color:#D4DFFB;box-shadow:var(--shadow);transform:translateY(-4px)}
.cat .ch{display:flex;align-items:center;gap:11px;margin-bottom:12px}
.cat .ch .icon-tile{width:40px;height:40px;border-radius:11px}
.cat .ch h4{font-size:16.5px;flex:1}
.cat .num{font-size:12.5px;font-weight:700;color:var(--brand);background:#EDF2FF;padding:3px 10px;border-radius:999px;white-space:nowrap}
.cat p{font-size:13px;color:var(--sub);margin:0 0 12px}
.cat .demo{font-size:12.5px;color:var(--ink2);line-height:2}
.cat .demo span{display:inline-block;background:#F5F7FB;border-radius:7px;padding:2px 10px;margin:2px 5px 2px 0}

/* ---------- WorkBuddy 能力列 / 钥匙卡 ---------- */
.cap-col{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm)}
.cap-col .hd{padding:18px 22px;font-weight:700;font-size:15.5px;display:flex;align-items:center;gap:10px}
.cap-col .hd.ro{background:linear-gradient(90deg,#EEFAF3,#F7FDF9);color:var(--green)}
.cap-col .hd.wo{background:linear-gradient(90deg,#FFF8EC,#FFFDF8);color:#D47300}
.cap-col ul{padding:6px 0}
.cap-col li{padding:13px 22px;font-size:13.8px;border-bottom:1px solid #F2F4F8;display:flex;gap:11px;align-items:flex-start}
.cap-col li:last-child{border-bottom:0}
.cap-col li .mk{flex-shrink:0;margin-top:3px}
.cap-col li .mk .ic-svg{width:17px;height:17px}
.cap-col li b{display:block;color:var(--ink);font-size:14px}
.cap-col li span{color:var(--sub);font-size:12.5px}

.keycard{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;position:relative;box-shadow:var(--shadow-sm);transition:all .25s;overflow:hidden}
.keycard:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#D4DFFB}
.keycard::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad)}
.keycard .knum{position:absolute;top:22px;right:24px;font-size:40px;font-weight:800;color:#EEF1FB;line-height:1}
.keycard h4{font-size:18px;margin:8px 0 5px;display:flex;align-items:center;gap:9px}
.keycard .scope{font-size:13px;color:var(--sub);margin-bottom:16px}
.keycard ul{padding-left:0}
.keycard ul li{font-size:14px;color:var(--ink2);padding:6px 0 6px 24px;position:relative}
.keycard ul li::before{content:"";position:absolute;left:2px;top:13px;width:7px;height:7px;border-radius:50%;background:var(--purple)}

/* ---------- 无入口危险格 ---------- */
.danger-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.danger{background:#FFFAF9;border:1px solid #FBE3E0;border-radius:var(--radius-s);padding:20px 18px;text-align:center;transition:all .2s}
.danger:hover{border-color:#F3C9C4;box-shadow:var(--shadow-sm)}
.danger .ic{display:flex;justify-content:center;margin-bottom:8px;color:var(--red)}
.danger .ic .ic-svg{width:25px;height:25px}
.danger b{font-size:14px;display:block;margin-bottom:3px}
.danger span{font-size:12.5px;color:var(--sub)}

/* ---------- FAQ ---------- */
.faq details{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-s);margin-bottom:12px;box-shadow:var(--shadow-sm);overflow:hidden}
.faq summary{cursor:pointer;padding:20px 24px;font-weight:600;font-size:15.5px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:14px;transition:background .15s}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{background:#F8FAFE}
.faq summary::after{content:"+";font-size:22px;font-weight:400;color:var(--brand);flex:none;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 24px 20px;color:var(--sub);font-size:14.5px}

/* ---------- CTA ---------- */
.cta-band{position:relative;border-radius:var(--radius-l);padding:60px 40px;text-align:center;color:#fff;background:var(--grad);box-shadow:0 26px 60px rgba(59,110,246,.32);overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 240px at 15% -30%,rgba(255,255,255,.22),transparent 60%),radial-gradient(500px 220px at 90% 120%,rgba(255,255,255,.16),transparent 60%)}
.cta-band>*{position:relative}
.cta-band h2{color:#fff;font-size:31px;margin-bottom:14px}
.cta-band p{font-size:16px;opacity:.94;max-width:640px;margin:0 auto 28px}

/* ---------- 表单 ---------- */
.form-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:40px;box-shadow:var(--shadow)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{margin-bottom:20px}
.field label{display:block;font-weight:600;font-size:14px;margin-bottom:8px}
.field label .req{color:var(--red)}
.field input,.field select,.field textarea{width:100%;padding:13px 15px;border:1.5px solid var(--line2);border-radius:11px;font-size:14.5px;font-family:inherit;color:var(--ink);transition:border .2s,box-shadow .2s;background:#fff}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:var(--ring)}
.field textarea{resize:vertical;min-height:104px}
.field .hint{font-size:12.5px;color:var(--sub);margin-top:6px}
.field.err input,.field.err select,.field.err textarea{border-color:var(--red)}
.field .errmsg{color:var(--red);font-size:12.5px;margin-top:6px;display:none}
.field.err .errmsg{display:block}
.seg-opt input:checked+span{border-color:var(--brand)!important;background:#F4F7FF!important;color:var(--brand)!important;box-shadow:var(--ring)}

/* ---------- 页脚 ---------- */
footer{background:#0E1322;color:#9AA2B8;padding:64px 0 28px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;border-bottom:1px solid #1E2438}
.foot-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:16px}
.foot-brand .badge{width:34px;height:34px;border-radius:9px;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff}
footer h5{color:#fff;font-size:14.5px;margin-bottom:16px}
footer ul li{margin-bottom:11px}
footer a{color:#9AA2B8;font-size:14px}
footer a:hover{color:#fff}
.foot-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;margin-bottom:13px}
.foot-contact .ic-svg{width:16px;height:16px;margin-top:3px;color:var(--brand-l)}
.foot-bottom{padding-top:24px;font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.foot-bottom a{color:#9AA2B8}

/* ---------- 统一聊天浮窗 ---------- */
#cw-fab{position:fixed;right:26px;bottom:26px;width:58px;height:58px;border-radius:50%;background:var(--grad);color:#fff;border:none;cursor:pointer;box-shadow:0 12px 30px rgba(59,110,246,.42);z-index:200;display:flex;align-items:center;justify-content:center;transition:transform .2s}
#cw-fab:hover{transform:scale(1.08)}
#cw-box{position:fixed;right:26px;bottom:96px;width:380px;max-width:calc(100vw - 32px);height:580px;max-height:calc(100vh - 130px);background:#fff;border-radius:20px;box-shadow:var(--shadow-lg);z-index:201;display:none;flex-direction:column;overflow:hidden;border:1px solid var(--line)}
#cw-box.open{display:flex;animation:cwpop .22s ease}
@keyframes cwpop{from{opacity:0;transform:translateY(14px) scale(.97)}to{opacity:1;transform:none}}
.cw-head{background:var(--grad);color:#fff;padding:17px 18px;display:flex;align-items:center;gap:11px}
.cw-head .av{width:38px;height:38px;border-radius:11px;background:rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center}
.cw-head b{font-size:15px;display:block}
.cw-head small{font-size:11.5px;opacity:.85}
.cw-head .x{margin-left:auto;cursor:pointer;background:none;border:none;color:#fff;padding:4px}
.cw-body{flex:1;overflow-y:auto;padding:18px 16px;background:#F7F9FE}
.cw-msg{margin-bottom:13px;display:flex}
.cw-msg.bot .bubble{background:#fff;border:1px solid var(--line);color:var(--ink2);border-radius:4px 16px 16px 16px;box-shadow:var(--shadow-sm);max-width:88%}
.cw-msg.me{justify-content:flex-end}
.cw-msg.me .bubble{background:var(--grad);color:#fff;border-radius:16px 4px 16px 16px;box-shadow:0 6px 14px rgba(59,110,246,.24)}
.cw-body .bubble{padding:11px 14px;font-size:13.5px;line-height:1.6;margin:0}
.cw-body a{color:var(--brand);font-weight:600}
.cw-quick{display:flex;flex-wrap:wrap;gap:7px;padding:10px 16px 2px}
.cw-quick button{background:#EDF2FF;color:var(--brand);border:1px solid #D4E0FB;border-radius:999px;padding:6px 12px;font-size:12.5px;cursor:pointer;font-family:inherit}
.cw-quick button:hover{background:#E1EAFF}
.cw-input{display:flex;gap:9px;padding:12px 15px;background:#fff;border-top:1px solid var(--line)}
.cw-input input{flex:1;border:1.5px solid var(--line2);border-radius:999px;padding:10px 16px;font-size:13.5px;font-family:inherit}
.cw-input input:focus{outline:none;border-color:var(--brand)}
.cw-input button{width:42px;height:42px;border-radius:50%;border:none;background:var(--grad);color:#fff;cursor:pointer;flex-shrink:0;display:flex;align-items:center;justify-content:center}

/* ---------- 登录页 ---------- */
.login-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(800px 400px at 80% -10%,rgba(110,91,255,.18),transparent 60%),var(--grad-soft);padding:20px}
.login-card{background:#fff;border-radius:22px;box-shadow:var(--shadow-lg);padding:44px 40px;width:100%;max-width:410px}
.login-card .lg{display:flex;align-items:center;gap:11px;justify-content:center;margin-bottom:8px;font-size:20px;font-weight:800}
.login-card .lg .badge{width:42px;height:42px;border-radius:12px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center}

/* ---------- 管理后台 ---------- */
.admin-layout{display:flex;min-height:100vh;background:#F4F6FB}
.admin-side{width:236px;background:linear-gradient(180deg,#121624 0,#0E1322 100%);color:#AEB4C2;padding:24px 0;flex-shrink:0;position:fixed;top:0;bottom:0;left:0;overflow-y:auto;z-index:50}
.admin-side .brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;padding:0 22px 20px;font-size:16px;border-bottom:1px solid #232A3E;margin-bottom:14px}
.admin-side .brand .badge{width:32px;height:32px;border-radius:9px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-size:14px}
.admin-side .grp{padding:14px 22px 6px;font-size:11px;letter-spacing:1.5px;color:#5B627A;text-transform:uppercase}
.admin-side a{display:flex;align-items:center;gap:11px;color:#AEB4C2;padding:11px 22px;font-size:14px;border-left:3px solid transparent}
.admin-side a .ic-svg{width:17px;height:17px}
.admin-side a:hover{background:#1B2030;color:#fff}
.admin-side a.on{background:#1B2340;color:#fff;border-left-color:var(--brand)}
.admin-side a.quit{margin-top:24px;color:#7B8299}
.admin-main{margin-left:236px;flex:1;padding:30px 34px;min-width:0}
.admin-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;flex-wrap:wrap;gap:12px}
.admin-top h1{font-size:24px}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:26px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;position:relative;box-shadow:var(--shadow-sm)}
.stat b{font-size:32px;font-weight:800;display:block;line-height:1.1}
.stat span{font-size:13px;color:var(--sub)}
.stat .ic{position:absolute;top:20px;right:20px;width:42px;height:42px;border-radius:12px;background:#EDF2FF;color:var(--brand);display:flex;align-items:center;justify-content:center}
.stat .ic.g{background:#E8F8F0;color:var(--green)}
.stat .ic.o{background:#FFF3E3;color:#E0780A}
.stat .ic.p{background:#F0EDFF;color:var(--purple)}
.filter-bar{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;margin-bottom:20px;display:flex;gap:14px;flex-wrap:wrap;align-items:flex-end;box-shadow:var(--shadow-sm)}
.filter-bar .field{margin:0;min-width:160px}
.filter-bar .field label{font-size:12px;margin-bottom:5px}
.filter-bar select,.filter-bar input{padding:10px 13px;font-size:13.5px}
.pill{padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;display:inline-flex;align-items:center;gap:5px;white-space:nowrap}
.pill.new{background:#FFF3E3;color:#D47300}
.pill.doing{background:#E7EEFF;color:var(--brand)}
.pill.done{background:#E8F8F0;color:var(--green)}
.pill.reject{background:#F0F2F6;color:var(--sub)}
.act-link{margin-right:12px;font-size:13px;white-space:nowrap;display:inline-flex;align-items:center;gap:4px}
.act-link.del{color:var(--red)}
.detail-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-sm)}
.detail-panel dl{display:grid;grid-template-columns:128px 1fr;gap:15px 20px;margin:0;font-size:14px}
.detail-panel dt{color:var(--sub)}
.detail-panel dd{margin:0;word-break:break-all}
.admin-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;margin-bottom:22px;box-shadow:var(--shadow-sm)}
.admin-card h3{font-size:17px;margin-bottom:20px;display:flex;align-items:center;gap:9px}
.admin-card h3 .ic-svg{width:19px;height:19px;color:var(--brand)}
.qr-preview{width:150px;height:150px;border:1px solid var(--line2);border-radius:var(--radius-s);object-fit:cover;background:#F7F9FE}

/* ---------- 后台：网站设置页 ---------- */
.admin-side .admin-nav{display:flex;flex-direction:column}
.admin-side a.adm-logout{margin-top:22px;color:#7B8299;border-top:1px solid #232A3E;padding-top:16px}
.adm-flash{padding:13px 18px;border-radius:12px;font-size:14px;margin-bottom:20px;font-weight:600}
.adm-flash.ok{background:#E8F8F0;color:#0C8A52;border:1px solid #B6E8CF}
.adm-flash.err{background:#FEF0EF;color:#C9352B;border:1px solid #F6C9C5}
.adm-page-head{margin-bottom:22px}
.adm-page-head h1{font-size:24px;margin:0 0 6px}
.adm-page-head p{color:var(--sub);font-size:13.5px;margin:0}
.adm-page-head code{background:#EEF1F7;padding:2px 7px;border-radius:6px;font-size:12px}
.adm-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px;margin-bottom:22px;box-shadow:var(--shadow-sm)}
.adm-card-hd{margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.adm-card-hd h2{font-size:17px;margin:0 0 6px;display:flex;align-items:center;gap:8px}
.adm-card-hd p{color:var(--sub);font-size:13px;margin:0}
.adm-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px 22px}
.adm-form-grid .field{margin:0}
.adm-span-2{grid-column:1 / -1}
.adm-form-grid label{display:block;font-size:13px;font-weight:600;color:#3A4155;margin-bottom:7px}
.adm-form-grid input,.adm-form-grid textarea{width:100%;border:1.5px solid var(--line2);border-radius:11px;padding:11px 13px;font-size:14px;font-family:inherit;background:#fff;box-sizing:border-box;transition:border-color .15s,box-shadow .15s}
.adm-form-grid input:focus,.adm-form-grid textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(59,110,246,.12)}
.adm-form-grid textarea{resize:vertical;line-height:1.6}
.adm-count{float:right;font-weight:400;color:#A0A7B8;font-size:12px}
.adm-hint{color:#98A0B3;font-size:12.5px;margin:8px 0 0}
/* 二维码 */
.adm-qr-row{display:flex;gap:26px;align-items:center;flex-wrap:wrap}
.adm-qr-preview{width:168px;height:168px;border:1.5px dashed var(--line2);border-radius:14px;background:#F7F9FE;display:flex;align-items:center;justify-content:center;overflow:hidden;flex-shrink:0}
.adm-qr-preview img{width:100%;height:100%;object-fit:contain}
.adm-qr-empty{color:#A0A7B8;font-size:13px}
.adm-qr-ops{flex:1;min-width:240px}
.adm-upload-btn{display:inline-flex;align-items:center;gap:8px;background:var(--grad);color:#fff;font-weight:700;font-size:14px;padding:11px 22px;border-radius:11px;cursor:pointer;box-shadow:var(--shadow-sm);transition:transform .15s,box-shadow .15s}
.adm-upload-btn:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
.adm-btn-ghost{display:inline-flex;align-items:center;background:#fff;border:1.5px solid var(--line2);color:#4A5268;font-weight:600;font-size:14px;padding:10px 20px;border-radius:11px;cursor:pointer;margin-left:12px;text-decoration:none}
.adm-btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
/* SEO 折叠列表 */
.adm-seo-list{display:flex;flex-direction:column;gap:18px}
.adm-seo-item{border:1px solid var(--line);border-radius:14px;padding:20px 22px;background:#FBFCFE}
.adm-seo-item .field{margin:0 0 14px}
.adm-seo-item .field:last-child{margin-bottom:0}
.adm-seo-item label{display:block;font-size:13px;font-weight:600;color:#3A4155;margin-bottom:7px}
.adm-seo-item input,.adm-seo-item textarea{width:100%;border:1.5px solid var(--line2);border-radius:10px;padding:10px 13px;font-size:13.5px;font-family:inherit;box-sizing:border-box}
.adm-seo-item input:focus,.adm-seo-item textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(59,110,246,.12)}
.adm-seo-item textarea{resize:vertical;line-height:1.6}
.adm-seo-name{font-weight:700;font-size:14.5px;color:#1E2538;margin-bottom:14px;display:flex;align-items:center;gap:10px}
.adm-seo-name code{background:#EEF1F7;color:#5A6378;padding:3px 9px;border-radius:7px;font-size:12px;font-weight:500}
.adm-save-bar{display:flex;align-items:center;gap:14px;margin-top:6px}
.adm-btn-primary{background:var(--grad);color:#fff;border:none;font-weight:700;font-size:15px;padding:13px 34px;border-radius:12px;cursor:pointer;box-shadow:var(--shadow-sm)}
.adm-btn-primary:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
.adm-save-bar .adm-btn-ghost{margin-left:0}
@media (max-width:820px){.adm-form-grid{grid-template-columns:1fr}.stat-row{grid-template-columns:repeat(2,1fr)}}

/* ---------- 联系我们二维码卡 ---------- */
.qr-card{text-align:center}
.qr-card .qr{width:168px;height:168px;border-radius:var(--radius-s);border:1px solid var(--line);object-fit:cover;margin:6px auto 14px;display:block;box-shadow:var(--shadow-sm)}
.contact-card{display:flex;gap:16px;align-items:flex-start}
.contact-card .icon-tile{width:50px;height:50px}

/* ---------- 信任带 ---------- */
.trust-bar{background:#fff;border-bottom:1px solid var(--line)}
.trust-in{display:flex;flex-wrap:wrap;justify-content:center;gap:14px 34px;padding:16px 24px}
.trust-in span{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:600;color:var(--sub)}
.trust-in svg{color:var(--brand)}

/* ---------- 一句话流程 ---------- */
.flow{display:flex;align-items:stretch;justify-content:center;gap:6px;flex-wrap:wrap}
.flow-item{flex:1;min-width:180px;max-width:230px;text-align:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 18px;box-shadow:var(--shadow-sm)}
.flow-item h5{margin:12px 0 6px;font-size:16px}
.flow-item p{margin:0;font-size:13px;color:var(--sub);line-height:1.7}
.fi-ic{width:56px;height:56px;margin:0 auto;border-radius:16px;background:linear-gradient(135deg,#EAF1FF,#F1ECFF);color:var(--brand);display:flex;align-items:center;justify-content:center}
.flow-arrow{display:flex;align-items:center;color:#B9C4DC;flex:none}

/* ---------- 申请表：侧栏 + 意向卡 + 下拉 ---------- */
.apply-grid{display:grid;grid-template-columns:320px 1fr;gap:26px;align-items:start}
.apply-side{display:flex;flex-direction:column;gap:18px;position:sticky;top:92px}
.apply-side .card{padding:22px}
.apply-side .tl{list-style:none;margin:14px 0 0;padding:0;display:flex;flex-direction:column;gap:12px}
.apply-side .tl li{position:relative;padding-left:22px;font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.92)}
.apply-side .tl li::before{content:"";position:absolute;left:0;top:7px;width:9px;height:9px;border-radius:50%;background:#fff}
.apply-side .card:not(:first-child) .tl li{color:var(--sub)}
.seg{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.seg-opt{cursor:pointer;margin:0}
.seg-opt input{position:absolute;opacity:0;pointer-events:none}
.seg-box{display:flex;flex-direction:column;align-items:center;gap:7px;padding:16px 10px;border:1.5px solid var(--line);border-radius:14px;background:#fff;color:var(--ink);transition:.18s;text-align:center}
.seg-box b{font-size:14px;font-weight:600}
.seg-box svg{color:#9AA3B5;transition:.18s}
.seg-opt input:checked+.seg-box{border-color:var(--brand);background:#F4F7FF;box-shadow:var(--ring)}
.seg-opt input:checked+.seg-box svg,.seg-opt input:checked+.seg-box{color:var(--brand)}
.seg-opt input:focus-visible+.seg-box{box-shadow:var(--ring)}
.select-wrap{position:relative}
.select-wrap svg{position:absolute;right:14px;top:50%;transform:translateY(-50%);color:#9AA3B5;pointer-events:none}
.select-wrap select{appearance:none;-webkit-appearance:none;padding-right:40px;cursor:pointer}

/* ---------- 联系页 ---------- */
.contact-main .ic{margin:0}

/* ---------- 响应式 ---------- */
@media(max-width:1040px){
  .nav-menu{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;padding:10px 16px 16px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);gap:2px}
  .nav-menu.open{display:flex}
  .nav-menu a{padding:12px 14px}
  .nav-toggle{display:block;margin-left:auto}
  .nav-cta .btn-ghost{display:none}
  .hero .wrap{grid-template-columns:1fr;gap:48px}
  .g4{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:1fr 1fr}
  .steps,.steps.five{grid-template-columns:repeat(2,1fr)}
  .danger-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .admin-side{position:static;width:100%;display:flex;overflow-x:auto;padding:10px}
  .admin-layout{flex-direction:column}
  .admin-main{margin-left:0}
  .admin-side .brand,.admin-side .grp,.admin-side a.quit{display:none}
  .admin-side a{border-left:none;border-bottom:3px solid transparent;white-space:nowrap}
  .admin-side a.on{border-bottom-color:var(--brand)}
}
@media(max-width:680px){
  .g2,.g3,.g4{grid-template-columns:1fr}
  .steps,.steps.five{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .apply-grid{grid-template-columns:1fr}
  .apply-side{position:static}
  .contact-main{grid-template-columns:1fr !important}
  .seg{grid-template-columns:1fr}
  .flow-arrow{transform:rotate(90deg);justify-content:center}
  .flow-item{max-width:none}
  .hero{padding:56px 0 64px}
  .hero h1{font-size:34px}
  .subhero h1{font-size:30px}
  .sec-hd h2{font-size:26px}
  section{padding:60px 0}
  .cta-band{padding:44px 24px}
  .foot-grid{grid-template-columns:1fr}
  #cw-box{right:16px;bottom:88px}
  #cw-fab{right:18px;bottom:18px}
  .detail-panel dl{grid-template-columns:1fr}
}
@media print{
  .nav,#cw-fab,#cw-box,.cta-band .btn,footer,.admin-side{display:none!important}
  body{background:#fff}
  .card,.step,.cat,.cap-col,.keycard{box-shadow:none;break-inside:avoid}
}