:root{--green:#05a04e;--green-deep:#047a3c;--green-soft:#3cbf78;--green-bg:#e9faf0;--green-border:#bcead0;--green-chip:#e3f7eb;--amber:#b45309;--amber-bg:#fffbeb;--amber-border:#fde68a;--red:#e5484d;--red-bg:#fef2f2;--red-border:#fecdd3;--text:#182430;--muted:#6b7a8c;--faint:#96a3b3;--surface:#f6f8f9;--border:#e6ebef}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Segoe UI",sans-serif;background:#fbfcfd;color:var(--text);font-size:13px;min-height:100vh}
a{color:var(--green-deep);text-decoration:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:none;border-radius:9px;padding:8px 15px;font-size:12.5px;font-weight:600;cursor:pointer;line-height:1.4}
.btn.primary{background:var(--green);color:#fff}
.btn.ghost{background:#fff;color:var(--green-deep);border:1px solid var(--green-border)}
.btn.danger{background:#fff;color:var(--red);border:1px solid var(--red-border)}
.btn.sm{padding:4px 10px;font-size:11.5px;border-radius:7px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.card{background:#fff;border:1px solid var(--border);border-radius:11px;padding:18px 20px}
.drop{border:1.5px dashed #a9dcc2;background:var(--green-bg);text-align:center;padding:34px;cursor:pointer}
.nav{height:56px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:32px;padding:0 28px;position:sticky;top:0;z-index:10}
.logo{font-size:15px;font-weight:800;color:var(--green-deep);cursor:pointer}
.logo b{color:var(--green)}
.nav .links{display:flex;gap:20px;color:var(--muted);font-size:12.5px;flex:1}
.nav .links span{cursor:pointer}
.nav .links .on{color:var(--green-deep);font-weight:700}
.avatar{width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,var(--green-deep),var(--green-soft));color:#fff;display:flex;align-items:center;justify-content:center;font-size:11.5px;font-weight:600;cursor:pointer}
.wrap{max-width:1000px;margin:0 auto;padding:20px 28px 40px}
h1{font-size:19px;font-weight:700}
.hint{color:var(--muted);font-size:12px;line-height:1.7}
.badge{display:inline-block;font-size:10.5px;line-height:1;padding:3px 8px;border-radius:6px;font-weight:600;vertical-align:2px}
.badge.pub{background:var(--green-chip);color:var(--green-deep)}
.badge.draft{background:#f1f5f9;color:var(--muted)}
.badge.blocked{background:var(--red-bg);color:var(--red)}
.badge.warn{background:var(--amber-bg);color:var(--amber)}
table{width:100%;border-collapse:collapse;font-size:12.5px}
th{text-align:left;font-size:11.5px;color:var(--muted);font-weight:500;padding:9px 12px;background:var(--surface);border-bottom:1px solid var(--border);white-space:nowrap}
td{padding:10px 12px;border-bottom:1px solid var(--border);vertical-align:middle;background:#fff}
tr:last-child td{border-bottom:none}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px}
.row{display:flex;align-items:center;gap:12px}
.spread{display:flex;align-items:center;justify-content:space-between}
.note{border:1px solid var(--green-border);background:var(--green-bg);color:var(--green-deep);font-size:11.5px;padding:9px 12px;border-radius:9px;line-height:1.7}
.note.amber{border-color:var(--amber-border);background:var(--amber-bg);color:var(--amber)}
input,select{border:1px solid var(--border);border-radius:8px;padding:9px 11px;font-size:13px;background:var(--surface);font-family:inherit;color:var(--text);outline:none}
input:focus{border-color:var(--green)}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:11.5px;color:var(--muted)}
.switch{width:38px;height:22px;border-radius:999px;background:#cbd5e1;position:relative;display:inline-block;cursor:pointer}
.switch.on{background:var(--green)}
.switch::after{content:"";position:absolute;top:2px;left:2px;width:18px;height:18px;border-radius:50%;background:#fff}
.switch.on::after{left:auto;right:2px}
.money-in{color:var(--green-deep);font-weight:700}
.money-out{color:var(--red);font-weight:700}
.grid{display:grid;gap:14px}
.g3{grid-template-columns:repeat(3,1fr)}
.g5{grid-template-columns:repeat(5,1fr)}
.copy{color:var(--faint);font-size:11px;border:1px solid var(--border);border-radius:5px;padding:1px 6px;margin-left:6px;cursor:pointer}
.hero-wrap{background:radial-gradient(560px 300px at 88% -8%,rgba(5,160,78,.09),transparent 70%),linear-gradient(180deg,#f4fbf7 0%,#fbfcfd 78%);min-height:calc(100vh - 56px)}
.hero{max-width:860px;margin:0 auto;padding:70px 28px 40px;text-align:center}
.pill{display:inline-flex;font-size:11.5px;font-weight:700;color:var(--green-deep);background:var(--green-chip);border:1px solid var(--green-border);padding:4px 12px;border-radius:99px;margin-bottom:18px}
.hero h1{font-size:38px;line-height:1.3}
.hero h1 em{font-style:normal;color:var(--green)}
.hero .sub{font-size:14px;color:var(--muted);line-height:1.9;margin:16px auto 24px;max-width:640px}
.ctas{display:flex;gap:12px;justify-content:center}
.ctas .btn{padding:11px 26px;font-size:14px}
.meta{display:flex;gap:18px;justify-content:center;margin-top:20px;font-size:11.5px;color:var(--muted)}
.meta span::before{content:"✓";color:var(--green);font-weight:800;margin-right:5px}
.center{min-height:calc(100vh - 56px);display:flex;align-items:center;justify-content:center}
.auth-card{width:400px;background:#fff;border:1px solid var(--border);border-radius:14px;padding:34px}
.ltabs{display:flex;gap:10px;margin-bottom:16px}
.ltabs div{flex:1;text-align:center;padding:8px;border:1px solid var(--border);border-radius:8px;cursor:pointer;font-weight:500;color:var(--muted)}
.ltabs div.on{border-color:var(--green);color:var(--green-deep);background:var(--green-chip);font-weight:700}
.field input{width:100%}
.err{color:var(--red);font-size:12px;margin-top:10px;min-height:16px}
.quota-bar{display:flex;justify-content:space-between;align-items:center;border:1px solid var(--border);background:var(--surface);border-radius:11px;padding:14px 20px;margin-bottom:18px}
.toast{position:fixed;top:18px;left:50%;transform:translateX(-50%);background:#182430;color:#fff;padding:10px 18px;border-radius:9px;font-size:12.5px;z-index:99;display:none}
.toast.err{background:var(--red)}
.modal-mask{position:fixed;inset:0;background:rgba(24,36,48,.45);display:flex;align-items:center;justify-content:center;z-index:100}
.modal{width:400px;background:#fff;border-radius:14px;padding:22px;box-shadow:0 24px 60px rgba(24,36,48,.26)}
.modal h3{font-size:15.5px;margin-bottom:14px}
.chips{display:flex;gap:10px;margin-bottom:12px}
.chip{padding:8px 18px;border:1px solid var(--border);border-radius:8px;cursor:pointer;background:#fff;font-weight:500;color:var(--muted)}
.chip.on{border-color:var(--green);color:var(--green-deep);background:var(--green-chip);font-weight:700}
.qrbox{border:1px dashed var(--border);border-radius:10px;height:150px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--faint);margin-bottom:12px}
.sect{max-width:1000px;margin:0 auto;padding:34px 28px 6px}
.sect h2{font-size:20px;text-align:center;margin-bottom:6px}
.sect .st{font-size:13px;color:var(--muted);text-align:center;margin-bottom:22px}
.scenes{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.scene{background:#fff;border:1px solid var(--border);border-radius:12px;padding:20px 18px}
.scene .ico{font-size:24px}
.scene b{display:block;margin:10px 0 2px;font-size:14px}
.scene .q{font-size:12.5px;color:var(--muted);line-height:1.7;margin-bottom:10px}
.scene .a{font-size:12px;color:var(--green-deep);background:var(--green-bg);border:1px solid var(--green-border);border-radius:8px;padding:8px 10px;line-height:1.7}
.demo{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center;margin-top:6px}
.chatcard{background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:0 18px 44px rgba(24,36,48,.10);overflow:hidden}
.chathead{display:flex;align-items:center;gap:9px;padding:11px 15px;border-bottom:1px solid var(--border);background:var(--surface)}
.chathead .ava{width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,var(--green),var(--green-soft));display:flex;align-items:center;justify-content:center;font-size:13px}
.chathead b{font-size:12.5px}
.chathead small{margin-left:auto;font-size:10.5px;color:var(--faint)}
.chatbody{padding:15px 15px 6px;display:flex;flex-direction:column;gap:10px}
.bub{max-width:88%;padding:9px 12px;border-radius:12px;font-size:12px;line-height:1.7}
.bub.user{align-self:flex-end;background:var(--surface);border:1px solid var(--border);border-bottom-right-radius:4px}
.bub.agent{align-self:flex-start;background:var(--green-bg);border:1px solid var(--green-border);border-bottom-left-radius:4px;color:#1d4630}
.bub.agent .st{margin-top:7px;font-size:11px;font-weight:700;color:var(--green-deep)}
.bub.agent .st i{font-style:normal;background:#fff;border:1px solid var(--green-border);border-radius:6px;padding:1px 7px;font-weight:600;margin-left:6px}
.demo .dt b{font-size:15px}
.demo .dt p{font-size:12.5px;color:var(--muted);line-height:1.9;margin:10px 0 14px}
.demo .dt .li{font-size:12px;line-height:2.1}
.demo .dt .li s{text-decoration:none;color:var(--green);font-weight:800;margin-right:6px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.step{background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px;display:flex;gap:12px;align-items:flex-start}
.step .num{flex:none;width:22px;height:22px;border-radius:50%;background:var(--green);color:#fff;font-size:11px;display:flex;align-items:center;justify-content:center;font-weight:700;margin-top:2px}
.step b{font-size:13.5px}
.step p{font-size:12px;color:var(--muted);margin-top:5px;line-height:1.7}
.feats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.feat{background:#fff;border:1px solid var(--border);border-radius:12px;padding:20px 16px;text-align:center}
.feat .ico{font-size:26px}
.feat b{display:block;margin:8px 0 6px;font-size:13.5px}
.feat p{font-size:11.5px;color:var(--muted);line-height:1.8}
.pricing{display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:760px;margin:0 auto}
.plan{background:#fff;border:1px solid var(--border);border-radius:14px;padding:24px}
.plan.hot{border-color:var(--green);box-shadow:0 12px 30px rgba(5,160,78,.10);position:relative}
.plan.hot::before{content:"推荐";position:absolute;top:-10px;right:16px;background:var(--green);color:#fff;font-size:10.5px;font-weight:700;padding:3px 10px;border-radius:99px}
.plan .pn{font-size:14px;font-weight:700}
.plan .pr{font-size:28px;font-weight:800;margin:8px 0 2px}
.plan .pr small{font-size:12px;font-weight:500;color:var(--muted)}
.plan ul{list-style:none;margin:14px 0 18px}
.plan li{font-size:12.5px;line-height:2.1;color:var(--text)}
.plan li::before{content:"✓";color:var(--green);font-weight:800;margin-right:8px}
.plan li.no{color:var(--faint)}.plan li.no::before{content:"—";color:var(--faint)}
.trust{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px 22px}
.trust div{font-size:11.5px;color:var(--muted);line-height:1.7;text-align:center}
.trust div b{display:block;color:var(--text);font-size:12.5px;margin-bottom:3px}
.endcta{text-align:center;padding:38px 28px 10px}
.endcta .btn{padding:12px 34px;font-size:14px}