/* ==========================================================================
   汇众平台官网 - AI 智能注册登录中心 · 全站样式表
   设计语言：晶绿未来派（Light Jade Futurism）
   底色薄荷白 + 翡翠绿渐变 + 大圆角玻璃拟态 + AI 对话组件
   ========================================================================== */

:root{
  --green:#0ba56a;
  --green-2:#14c37e;
  --green-3:#7fe3b8;
  --teal:#0e9a9a;
  --ink:#0c2a22;
  --ink-2:#17453a;
  --mut:#5c736a;
  --bg:#f3faf6;
  --bg-2:#e9f6ef;
  --card:#ffffff;
  --line:#d9ebe1;
  --line-2:#e6f3ec;
  --grad:linear-gradient(120deg,#14c37e 0%,#0ba56a 48%,#0e9a9a 100%);
  --grad-soft:linear-gradient(135deg,#eafcf3 0%,#e4f8f4 100%);
  --grad-dark:linear-gradient(150deg,#07271e 0%,#0a3b2c 60%,#0b4d39 100%);
  --shadow:0 22px 55px -22px rgba(9,84,58,.22);
  --shadow-sm:0 10px 30px -14px rgba(9,84,58,.16);
  --r:26px;
  --r-sm:16px;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,textarea{font-family:inherit;font-size:inherit}
::selection{background:rgba(20,195,126,.25)}

.wrap{max-width:1180px;margin:0 auto;padding:0 24px}

/* ---------- 顶部服务状态条 ---------- */
.statusbar{
  background:#07271e;color:#b8e6d2;font-size:12.5px;letter-spacing:.3px;
}
.statusbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:38px;overflow:hidden}
.st-live{display:flex;align-items:center;gap:8px;white-space:nowrap}
.st-dot{width:7px;height:7px;border-radius:50%;background:#22e59a;box-shadow:0 0 0 0 rgba(34,229,154,.6);animation:pulse 2s infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(34,229,154,.55)}
  70%{box-shadow:0 0 0 9px rgba(34,229,154,0)}
  100%{box-shadow:0 0 0 0 rgba(34,229,154,0)}
}
.st-note{opacity:.85;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.st-note b{color:#5ff0b4;font-weight:600}

/* ---------- 顶栏导航 ---------- */
.hd{
  position:sticky;top:0;z-index:60;
  background:rgba(243,250,246,.86);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s;
}
.hd.scrolled{box-shadow:0 12px 34px -20px rgba(9,84,58,.28)}
.hd-in{display:flex;align-items:center;justify-content:space-between;height:70px;gap:20px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-badge{
  width:40px;height:40px;border-radius:13px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:19px;
  box-shadow:0 10px 22px -8px rgba(11,165,106,.55);position:relative;overflow:hidden;
}
.logo-badge::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(255,255,255,.35),transparent 55%);
}
.logo-name{line-height:1.25}
.logo-name b{display:block;font-size:16.5px;letter-spacing:.5px}
.logo-name small{display:block;font-size:10px;color:var(--mut);letter-spacing:2.4px;font-family:var(--mono)}
.nav{display:flex;align-items:center;gap:4px}
.nav > a{
  font-size:14px;padding:9px 13px;border-radius:11px;color:var(--ink-2);
  font-weight:500;transition:all .22s;white-space:nowrap;
}
.nav > a:hover{background:var(--bg-2);color:var(--green)}
.nav > a.on{background:#fff;color:var(--green);font-weight:700;box-shadow:var(--shadow-sm)}
.nav-cta{
  margin-left:10px;background:var(--grad);color:#fff !important;font-weight:700;
  padding:10px 22px !important;border-radius:999px;box-shadow:0 12px 26px -10px rgba(11,165,106,.55);
  transition:transform .22s, box-shadow .22s !important;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 16px 30px -10px rgba(11,165,106,.6);background:var(--grad) !important;color:#fff !important}
.nav-cta.on{background:var(--grad) !important;color:#fff !important}
.burger{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;background:#fff;cursor:pointer;padding:10px}
.burger span{display:block;height:2px;background:var(--ink);border-radius:2px;margin:5px 0;transition:.3s}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:999px;padding:14px 30px;font-weight:700;font-size:15px;
  border:none;cursor:pointer;transition:transform .22s,box-shadow .22s,background .22s;
  line-height:1.2;
}
.btn-g{background:var(--grad);color:#fff;box-shadow:0 16px 32px -12px rgba(11,165,106,.55)}
.btn-g:hover{transform:translateY(-2px);box-shadow:0 20px 38px -12px rgba(11,165,106,.62)}
.btn-o{background:#fff;color:var(--ink);border:1.5px solid var(--line);box-shadow:var(--shadow-sm)}
.btn-o:hover{transform:translateY(-2px);border-color:var(--green-3);color:var(--green)}
.btn-sm{padding:11px 22px;font-size:14px}
.arrow{font-family:var(--mono);transition:transform .25s}
.btn:hover .arrow{transform:translateX(4px)}

/* ---------- 区块骨架 ---------- */
.sec{padding:88px 0}
.sec-tight{padding:64px 0}
.sec-head{max-width:720px;margin-bottom:52px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;
  letter-spacing:1.6px;color:var(--green);text-transform:uppercase;
  background:#e6f8ef;border:1px solid #c9efdc;border-radius:999px;padding:7px 16px;margin-bottom:18px;
}
.kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--green-2)}
h2.sec-t{font-size:36px;line-height:1.3;font-weight:800;letter-spacing:-.5px}
h2.sec-t .gt{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.sec-sub{color:var(--mut);font-size:15.5px;margin-top:16px;max-width:640px}
.center .sec-sub{margin-left:auto;margin-right:auto}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:76px 0 70px}
.blob{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5;pointer-events:none}
.blob-a{width:520px;height:520px;background:radial-gradient(circle,#a9f2d3,transparent 65%);top:-180px;right:-120px}
.blob-b{width:420px;height:420px;background:radial-gradient(circle,#bfeee7,transparent 65%);bottom:-220px;left:-140px}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(12,42,34,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(12,42,34,.035) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(ellipse 90% 70% at 50% 20%,#000 30%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 90% 70% at 50% 20%,#000 30%,transparent 75%);
  pointer-events:none;
}
.hero-in{position:relative;display:grid;grid-template-columns:1.06fr .94fr;gap:58px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:8px 18px;font-size:13px;font-weight:600;color:var(--ink-2);
  box-shadow:var(--shadow-sm);margin-bottom:24px;
}
.hero-badge .tag{
  background:var(--grad);color:#fff;font-size:11px;font-weight:800;border-radius:999px;
  padding:2px 10px;letter-spacing:1px;
}
.hero h1{font-size:52px;line-height:1.22;font-weight:800;letter-spacing:-1px}
.hero h1 .gt{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:var(--mut);font-size:16.5px;margin-top:22px;max-width:520px}
.hero-lead b{color:var(--ink-2)}
.hero-acts{display:flex;gap:16px;margin-top:34px;flex-wrap:wrap}
.hero-mini{display:flex;gap:34px;margin-top:40px;padding-top:28px;border-top:1px dashed #c8e4d6;flex-wrap:wrap}
.hm b{font-size:23px;font-weight:800;color:var(--ink);letter-spacing:-.5px;font-variant-numeric:tabular-nums}
.hm b em{font-style:normal;color:var(--green)}
.hm span{display:block;font-size:12.5px;color:var(--mut);margin-top:2px}

/* ---------- Hero 右侧：AI 通行证模拟卡 ---------- */
.aicard{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:30px;
  box-shadow:var(--shadow);overflow:hidden;
}
.aicard-head{
  background:var(--grad-dark);color:#fff;padding:20px 24px;position:relative;overflow:hidden;
}
.aicard-head::after{
  content:"";position:absolute;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,230,158,.35),transparent 65%);
  top:-130px;right:-70px;
}
.aicard-row{display:flex;align-items:center;justify-content:space-between;position:relative;z-index:1}
.aicard-id{display:flex;align-items:center;gap:12px}
.aicard-id .mini-logo{
  width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,#2ee69e,#0e9a9a);
  display:grid;place-items:center;font-weight:800;font-size:17px;
}
.aicard-id b{display:block;font-size:15px;letter-spacing:.5px}
.aicard-id small{display:block;font-size:10px;letter-spacing:2.2px;color:#9fdcC3;font-family:var(--mono);opacity:.9}
.aicard-status{
  font-size:11px;font-family:var(--mono);letter-spacing:1px;color:#5ff0b4;
  border:1px solid rgba(95,240,180,.4);border-radius:999px;padding:4px 12px;
}
.aicard-body{padding:24px}
.chat{display:flex;flex-direction:column;gap:14px;min-height:150px}
.msg{display:flex;gap:10px;align-items:flex-start;opacity:0;transform:translateY(8px);animation:msgIn .5s forwards}
.msg:nth-child(1){animation-delay:.25s}
.msg:nth-child(2){animation-delay:1.15s}
.msg:nth-child(3){animation-delay:2.05s}
@keyframes msgIn{to{opacity:1;transform:none}}
.avatar{
  width:32px;height:32px;border-radius:10px;flex-shrink:0;display:grid;place-items:center;
  font-size:13px;font-weight:800;
}
.msg-ai .avatar{background:var(--grad);color:#fff}
.msg-me{flex-direction:row-reverse}
.msg-me .avatar{background:var(--bg-2);color:var(--ink-2)}
.bubble{
  background:var(--bg-2);border-radius:4px 16px 16px 16px;padding:10px 15px;
  font-size:13.5px;color:var(--ink-2);max-width:82%;
}
.msg-me .bubble{background:#e0f7ea;border-radius:16px 4px 16px 16px}
.typing::after{
  content:"";display:inline-block;width:8px;height:14px;background:var(--green);
  margin-left:2px;vertical-align:-2px;animation:blink .8s steps(1) infinite;
}
@keyframes blink{50%{opacity:0}}
.passform{margin-top:20px;border:1px solid var(--line-2);border-radius:18px;padding:16px;background:#fbfefc}
.pf-line{display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:12px;padding:11px 14px;background:#fff;font-size:13.5px;color:var(--mut)}
.pf-line + .pf-line{margin-top:10px}
.pf-line b{color:var(--ink);font-weight:600;letter-spacing:1px}
.pf-ic{width:26px;height:26px;border-radius:8px;background:var(--bg-2);display:grid;place-items:center;font-size:12px;flex-shrink:0}
.pf-btn{
  margin-top:12px;width:100%;border:none;border-radius:12px;background:var(--grad);color:#fff;
  font-weight:700;font-size:14px;padding:12px;cursor:pointer;position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:center;gap:8px;
}
.pf-btn::after{
  content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.5),transparent);
  animation:sweep 2.6s infinite;
}
@keyframes sweep{0%{left:-60%}55%{left:120%}100%{left:120%}}
.float-tag{
  position:absolute;background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow);padding:10px 15px;font-size:12px;font-weight:700;color:var(--ink-2);
  display:flex;align-items:center;gap:8px;animation:floatY 4.5s ease-in-out infinite;
}
.float-tag .ok{color:var(--green);font-family:var(--mono)}
.ft-1{right:-18px;top:110px}
.ft-2{left:-26px;bottom:64px;animation-delay:1.4s}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

/* ---------- 数字统计带 ---------- */
.statband{
  position:relative;background:var(--grad-dark);border-radius:32px;color:#fff;
  padding:46px 40px;display:grid;grid-template-columns:repeat(4,1fr);gap:30px;
  overflow:hidden;box-shadow:0 30px 70px -30px rgba(7,39,30,.55);
}
.statband::before{
  content:"";position:absolute;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,230,158,.22),transparent 65%);
  top:-160px;right:-80px;
}
.statband::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(ellipse at 30% 30%,#000,transparent 80%);
  -webkit-mask-image:radial-gradient(ellipse at 30% 30%,#000,transparent 80%);
  pointer-events:none;
}
.stat{position:relative;z-index:1;text-align:center}
.stat b{font-size:38px;font-weight:800;letter-spacing:-1px;font-variant-numeric:tabular-nums;line-height:1.15}
.stat b em{font-style:normal;font-size:22px;color:#5ff0b4;margin-left:2px}
.stat span{display:block;color:#9ecdb9;font-size:13px;margin-top:8px;letter-spacing:.5px}

/* ---------- 功能卡网格 ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feat{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:32px 28px;position:relative;overflow:hidden;
  transition:transform .3s,box-shadow .3s,border-color .3s;
}
.feat:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#bfe8d4}
.feat::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad);
  opacity:0;transition:opacity .3s;
}
.feat:hover::before{opacity:1}
.feat-ic{
  width:56px;height:56px;border-radius:17px;background:var(--grad-soft);
  border:1px solid #cdeeda;display:grid;place-items:center;font-size:24px;margin-bottom:20px;
}
.feat h3{font-size:18.5px;font-weight:800;margin-bottom:10px;letter-spacing:-.2px}
.feat p{font-size:14px;color:var(--mut);line-height:1.8}
.feat-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.ftag{font-size:11.5px;font-weight:600;color:var(--green);background:#e9f9f1;border:1px solid #d0f0e0;border-radius:999px;padding:3px 11px}
.feat-link{display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-size:13.5px;font-weight:700;color:var(--green)}
.feat-link .arrow{font-family:var(--mono)}
.feat-link:hover .arrow{transform:translateX(4px)}

/* ---------- 引擎（深色区块） ---------- */
.engine{background:var(--grad-dark);border-radius:36px;color:#fff;padding:64px 56px;position:relative;overflow:hidden}
.engine::before{
  content:"";position:absolute;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,230,158,.2),transparent 65%);bottom:-240px;left:-120px;
}
.engine::after{
  content:"";position:absolute;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,154,154,.28),transparent 65%);top:-180px;right:-110px;
}
.engine-in{position:relative;z-index:1;display:grid;grid-template-columns:.9fr 1.1fr;gap:52px;align-items:center}
.engine h2{font-size:34px;font-weight:800;line-height:1.35;letter-spacing:-.5px}
.engine h2 .gt{background:linear-gradient(120deg,#5ff0b4,#57d9d4);-webkit-background-clip:text;background-clip:text;color:transparent}
.engine p.lead{color:#a8d6c2;font-size:15px;margin-top:18px}
.engine-list{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.eng-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:20px;padding:22px;backdrop-filter:blur(6px);
  transition:background .3s,border-color .3s,transform .3s;
}
.eng-card:hover{background:rgba(255,255,255,.1);border-color:rgba(95,240,180,.45);transform:translateY(-4px)}
.eng-card .no{font-family:var(--mono);font-size:12px;color:#5ff0b4;letter-spacing:1.5px}
.eng-card h4{font-size:16.5px;font-weight:700;margin:10px 0 8px}
.eng-card p{font-size:13px;color:#a8d6c2;line-height:1.7}

/* ---------- 注册流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:30px 26px;transition:transform .3s,box-shadow .3s;
}
.step:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.step-no{
  width:44px;height:44px;border-radius:14px;background:var(--grad);color:#fff;
  font-weight:800;font-size:17px;display:grid;place-items:center;font-family:var(--mono);
  box-shadow:0 12px 24px -10px rgba(11,165,106,.5);margin-bottom:18px;
}
.step h3{font-size:16.5px;font-weight:800;margin-bottom:9px}
.step p{font-size:13.5px;color:var(--mut);line-height:1.75}
.step::after{
  content:"→";position:absolute;right:-19px;top:50%;transform:translateY(-50%);
  color:#b9dccb;font-size:18px;font-weight:700;
}
.step:last-child::after{display:none}

/* ---------- 安全区块（左右分栏） ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.sec-list{margin-top:28px;display:flex;flex-direction:column;gap:18px}
.sec-it{display:flex;gap:16px;align-items:flex-start}
.sec-it .ic{
  width:44px;height:44px;border-radius:13px;background:var(--grad-soft);border:1px solid #cdeeda;
  display:grid;place-items:center;font-size:19px;flex-shrink:0;
}
.sec-it h4{font-size:15.5px;font-weight:700;margin-bottom:4px}
.sec-it p{font-size:13.5px;color:var(--mut)}
.sec-visual{
  background:#fff;border:1px solid var(--line);border-radius:32px;padding:30px;
  box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.sec-visual .scan{
  position:relative;border-radius:20px;background:var(--grad-dark);padding:30px 26px;color:#fff;overflow:hidden;
}
.sec-visual .scan::before{
  content:"";position:absolute;left:0;right:0;height:64px;
  background:linear-gradient(180deg,transparent,rgba(46,230,158,.22),transparent);
  animation:scanmove 3.4s ease-in-out infinite;
}
@keyframes scanmove{0%,100%{top:-20%}50%{top:85%}}
.scan-frame{
  position:relative;border:1.5px dashed rgba(95,240,180,.55);border-radius:16px;
  padding:26px 22px;text-align:center;
}
.scan-frame .face{font-size:44px;line-height:1}
.scan-frame b{display:block;margin-top:12px;font-size:15px;letter-spacing:1px}
.scan-frame span{font-size:12px;color:#9ecdb9;font-family:var(--mono);letter-spacing:1.5px}
.scan-meta{display:flex;justify-content:space-between;margin-top:20px;font-family:var(--mono);font-size:11.5px;color:#9ecdb9}
.scan-meta .ok{color:#5ff0b4}

/* ---------- FAQ 手风琴 ---------- */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.qa{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;transition:border-color .3s,box-shadow .3s}
.qa.open{border-color:#b8e6cf;box-shadow:var(--shadow-sm)}
.qa-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:21px 26px;background:none;border:none;cursor:pointer;text-align:left;
  font-size:15.5px;font-weight:700;color:var(--ink);
}
.qa-q .ic{
  width:28px;height:28px;border-radius:9px;background:var(--bg-2);color:var(--green);
  display:grid;place-items:center;font-size:15px;font-weight:700;flex-shrink:0;
  transition:transform .3s,background .3s,color .3s;font-family:var(--mono);
}
.qa.open .qa-q .ic{background:var(--grad);color:#fff;transform:rotate(45deg)}
.qa-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.qa-a-in{padding:0 26px 24px;color:var(--mut);font-size:14px;line-height:1.85}
.qa-a-in b{color:var(--ink-2)}

/* ---------- CTA ---------- */
.cta-box{
  position:relative;background:var(--grad-dark);border-radius:36px;padding:66px 56px;
  color:#fff;text-align:center;overflow:hidden;
}
.cta-box::before{
  content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,230,158,.24),transparent 65%);top:-200px;left:50%;transform:translateX(-50%);
}
.cta-box h2{position:relative;font-size:34px;font-weight:800;letter-spacing:-.5px}
.cta-box p{position:relative;color:#a8d6c2;margin:16px auto 0;max-width:560px;font-size:15px}
.cta-acts{position:relative;display:flex;gap:16px;justify-content:center;margin-top:34px;flex-wrap:wrap}
.btn-ghost{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.25)}
.btn-ghost:hover{background:rgba(255,255,255,.18);transform:translateY(-2px)}

/* ---------- 页脚 ---------- */
.ft{background:#07271e;color:#b9d9c9;margin-top:96px}
.ft-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:44px;padding:64px 0 48px}
.ft-brand .logo-name b{color:#fff}
.ft-brand .logo-name small{color:#6fa78f}
.ft-brand p{font-size:13.5px;color:#8fb8a4;margin-top:18px;max-width:300px;line-height:1.8}
.ft-badges{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}
.ft-badge{
  font-size:11px;font-family:var(--mono);letter-spacing:.5px;color:#5ff0b4;
  border:1px solid rgba(95,240,180,.3);border-radius:999px;padding:4px 12px;
}
.ft-col h4{color:#fff;font-size:14.5px;font-weight:700;margin-bottom:18px;letter-spacing:.5px}
.ft-col a{display:block;font-size:13.5px;color:#8fb8a4;padding:5px 0;transition:color .2s,transform .2s}
.ft-col a:hover{color:#5ff0b4;transform:translateX(3px)}
.ft-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;
  justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:#6fa78f;
}
.ft-bottom .mono{font-family:var(--mono);letter-spacing:.5px}

/* ---------- 子页头 ---------- */
.page-hero{
  position:relative;overflow:hidden;padding:60px 0 54px;
  background:linear-gradient(168deg,#edfaf3 0%,#e3f6f0 60%,#e8f4f8 100%);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(12,42,34,.033) 1px,transparent 1px),linear-gradient(90deg,rgba(12,42,34,.033) 1px,transparent 1px);
  background-size:46px 46px;
  mask-image:radial-gradient(ellipse 80% 100% at 20% 0%,#000 20%,transparent 80%);
  -webkit-mask-image:radial-gradient(ellipse 80% 100% at 20% 0%,#000 20%,transparent 80%);
  pointer-events:none;
}
.page-hero .wrap{position:relative}
.page-hero h1{font-size:40px;font-weight:800;letter-spacing:-.8px;line-height:1.3;margin-top:22px}
.page-hero h1 .gt{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.ph-sub{color:var(--mut);font-size:15.5px;margin-top:16px;max-width:680px}
.crumbs{display:flex;align-items:center;gap:9px;font-size:12.5px;color:var(--mut);font-family:var(--mono);letter-spacing:.5px}
.crumbs a:hover{color:var(--green)}
.crumbs .sep{color:#a9cbb9}
.crumbs .cur{color:var(--green);font-weight:600}

/* ---------- 通用内容网格与卡片 ---------- */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px 28px;
  transition:transform .3s,box-shadow .3s,border-color .3s;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);border-color:#c8e9d8}
.card h3{font-size:17.5px;font-weight:800;margin-bottom:10px;letter-spacing:-.2px}
.card p{font-size:14px;color:var(--mut);line-height:1.8}
.card .ic{
  width:50px;height:50px;border-radius:15px;background:var(--grad-soft);border:1px solid #cdeeda;
  display:grid;place-items:center;font-size:22px;margin-bottom:18px;
}
.note{
  border-left:4px solid var(--green-2);background:#f2fbf6;border-radius:0 16px 16px 0;
  padding:18px 22px;font-size:14px;color:var(--ink-2);margin:20px 0;line-height:1.8;
}
.note b{color:var(--green)}

/* ---------- 表格 ---------- */
.tbl{width:100%;border-collapse:collapse;font-size:14px;background:#fff;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-sm)}
.tbl th{background:var(--bg-2);color:var(--ink-2);font-weight:700;text-align:left;padding:14px 18px;font-size:13.5px;border-bottom:1px solid var(--line)}
.tbl td{padding:13px 18px;border-bottom:1px solid var(--line-2);color:#31544a}
.tbl tr:last-child td{border-bottom:none}
.tbl tr:hover td{background:#fafdfb}

/* ---------- 注册/登录 表单演示 ---------- */
.demo-grid{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:start}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:30px;overflow:hidden;
  box-shadow:var(--shadow);position:relative;
}
.form-head{background:var(--grad-dark);color:#fff;padding:26px 30px;position:relative;overflow:hidden}
.form-head::after{
  content:"";position:absolute;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,230,158,.3),transparent 65%);top:-120px;right:-70px;
}
.form-head h3{position:relative;z-index:1;font-size:19px;font-weight:800;letter-spacing:.3px}
.form-head p{position:relative;z-index:1;font-size:12.5px;color:#9ecdb9;margin-top:5px;font-family:var(--mono);letter-spacing:.5px}
.form-body{padding:30px}
.f-item + .f-item{margin-top:18px}
.f-item label{display:block;font-size:13px;font-weight:700;margin-bottom:8px;color:var(--ink-2)}
.f-item input,.f-item select{
  width:100%;border:1.5px solid var(--line);border-radius:13px;padding:13px 16px;
  font-size:14.5px;background:#fbfefc;outline:none;transition:border-color .25s,box-shadow .25s,background .25s;
  color:var(--ink);
}
.f-item input:focus{border-color:var(--green-2);box-shadow:0 0 0 4px rgba(20,195,126,.14);background:#fff}
.f-cap{font-size:11.5px;color:var(--mut);margin-top:7px}
.f-btn{
  width:100%;margin-top:22px;border:none;border-radius:14px;background:var(--grad);color:#fff;
  font-weight:800;font-size:15px;padding:14px;cursor:pointer;letter-spacing:.5px;
  box-shadow:0 16px 32px -12px rgba(11,165,106,.55);transition:transform .22s,box-shadow .22s;
}
.f-btn:hover{transform:translateY(-2px);box-shadow:0 20px 38px -12px rgba(11,165,106,.62)}
.f-btn:disabled{opacity:.6;cursor:wait;transform:none}
.ai-check{
  margin-top:18px;border:1px dashed #bfe8d4;border-radius:14px;background:#f4fcf8;
  padding:14px 16px;font-size:12.5px;color:var(--ink-2);display:none;
}
.ai-check.show{display:block}
.ai-check .ac-line{display:flex;align-items:center;gap:9px;padding:4px 0;font-family:var(--mono);letter-spacing:.3px}
.ai-check .ac-line .spin{
  width:13px;height:13px;border:2px solid #bfe8d4;border-top-color:var(--green);border-radius:50%;
  animation:spin .7s linear infinite;flex-shrink:0;
}
@keyframes spin{to{transform:rotate(360deg)}}
.ai-check .ok{
  margin-top:8px;padding-top:10px;border-top:1px dashed #bfe8d4;font-weight:800;color:var(--green);font-size:13px;
}
.form-ok{
  display:none;text-align:center;padding:34px 20px;
}
.form-ok.show{display:block}
.form-ok .big{
  width:76px;height:76px;border-radius:50%;background:var(--grad);color:#fff;font-size:34px;
  display:grid;place-items:center;margin:0 auto 20px;box-shadow:0 18px 40px -14px rgba(11,165,106,.55);
  animation:popIn .5s cubic-bezier(.2,1.4,.4,1);
}
@keyframes popIn{from{transform:scale(.4);opacity:0}to{transform:scale(1);opacity:1}}
.form-ok h3{font-size:20px;font-weight:800}
.form-ok p{color:var(--mut);font-size:14px;margin-top:10px}
.form-ok .mono{font-family:var(--mono);color:var(--green);font-weight:700}

/* ---------- 深色特征条(子页复用) ---------- */
.dark-band{
  background:var(--grad-dark);border-radius:30px;color:#fff;padding:52px 48px;position:relative;overflow:hidden;
}
.dark-band::before{
  content:"";position:absolute;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,230,158,.2),transparent 65%);top:-190px;right:-100px;
}
.dark-band h2{position:relative;font-size:28px;font-weight:800}
.dark-band p{position:relative;color:#a8d6c2;font-size:14.5px;margin-top:12px;max-width:640px}
.dark-stats{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:34px}
.dark-stats b{font-size:30px;font-weight:800;letter-spacing:-.5px}
.dark-stats b em{font-style:normal;font-size:18px;color:#5ff0b4}
.dark-stats span{display:block;font-size:12.5px;color:#9ecdb9;margin-top:4px}

/* ---------- 资讯列表 ---------- */
.nlist{display:flex;flex-direction:column;gap:16px}
.nitem{
  display:grid;grid-template-columns:112px 1fr auto;gap:24px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px 30px;
  transition:transform .28s,box-shadow .28s,border-color .28s;
}
.nitem:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#c8e9d8}
.nitem .dt{font-family:var(--mono);font-size:12.5px;color:var(--green);font-weight:700;letter-spacing:.5px}
.nitem .dt small{display:block;color:var(--mut);font-weight:400;margin-top:3px;letter-spacing:1px}
.nitem h3{font-size:16.5px;font-weight:800;letter-spacing:-.2px}
.nitem h3 a:hover{color:var(--green)}
.nitem p{font-size:13px;color:var(--mut);margin-top:8px;line-height:1.75}
.nitem .go{
  width:42px;height:42px;border-radius:50%;border:1.5px solid var(--line);display:grid;place-items:center;
  color:var(--green);font-family:var(--mono);font-size:16px;transition:background .25s,color .25s,transform .25s;
}
.nitem:hover .go{background:var(--grad);color:#fff;border-color:transparent;transform:rotate(-45deg)}

/* ---------- 文章排版 ---------- */
.prose{max-width:820px;margin:0 auto}
.prose .art-meta{
  display:flex;gap:16px;flex-wrap:wrap;color:var(--mut);font-size:13px;margin-bottom:6px;
  font-family:var(--mono);letter-spacing:.4px;
}
.prose .art-meta .cat{color:var(--green);font-weight:700}
.prose h2{font-size:24px;font-weight:800;margin:38px 0 14px;letter-spacing:-.4px;padding-left:16px;border-left:5px solid var(--green-2);line-height:1.45}
.prose h3{font-size:18.5px;font-weight:800;margin:28px 0 10px}
.prose p{margin:14px 0;color:#31544a;font-size:15px;line-height:1.95}
.prose ul{margin:14px 0}
.prose ul li{position:relative;padding-left:20px;margin:9px 0;color:#31544a;font-size:15px;line-height:1.85}
.prose ul li::before{content:"";position:absolute;left:2px;top:11px;width:7px;height:7px;border-radius:50%;background:var(--green-2)}
.prose b{color:var(--ink)}
.tag-row{display:flex;gap:9px;flex-wrap:wrap;margin-top:34px;padding-top:24px;border-top:1px dashed #c8e4d6}
.art-nav{display:flex;justify-content:space-between;gap:18px;margin-top:26px;flex-wrap:wrap}
.art-nav a{font-size:13.5px;font-weight:700;color:var(--green)}

/* ---------- 滚动显现 ---------- */
.rv{opacity:0;transform:translateY(24px);transition:opacity .75s ease,transform .75s ease}
.rv.in{opacity:1;transform:none}
.rv.d1{transition-delay:.08s}.rv.d2{transition-delay:.16s}.rv.d3{transition-delay:.24s}

/* ---------- 移动端菜单 ---------- */
.mnav{
  display:none;position:fixed;inset:70px 0 auto 0;z-index:55;
  background:rgba(243,250,246,.98);backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);padding:14px 24px 22px;
  box-shadow:0 30px 60px -30px rgba(9,84,58,.35);
}
.mnav.show{display:block}
.mnav a{display:block;padding:13px 14px;border-radius:12px;font-size:15px;font-weight:600;color:var(--ink-2)}
.mnav a:hover{background:var(--bg-2);color:var(--green)}
.mnav .nav-cta{margin:12px 0 0;text-align:center;color:#fff !important}

/* ---------- 响应式 ---------- */
@media (max-width:1120px){
  .nav > a{padding:8px 10px;font-size:13.5px}
  .hero h1{font-size:46px}
}
@media (max-width:980px){
  .nav{display:none}
  .burger{display:block}
  .hero-in{grid-template-columns:1fr;gap:46px}
  .ft-1{right:0}.ft-2{left:0}
  .feat-grid{grid-template-columns:1fr 1fr}
  .statband{grid-template-columns:1fr 1fr;padding:40px 32px;gap:26px}
  .engine{padding:48px 36px}
  .engine-in{grid-template-columns:1fr;gap:36px}
  .steps{grid-template-columns:1fr 1fr;gap:20px}
  .step::after{display:none}
  .split{grid-template-columns:1fr;gap:40px}
  .demo-grid{grid-template-columns:1fr;gap:40px}
  .ft-main{grid-template-columns:1fr 1fr;gap:34px;padding:52px 0 40px}
  .grid-3{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .wrap{padding:0 18px}
  .sec{padding:62px 0}
  .hero{padding:50px 0 56px}
  .hero h1{font-size:33px;letter-spacing:-.5px}
  h2.sec-t{font-size:27px}
  .page-hero h1{font-size:30px}
  .feat-grid{grid-template-columns:1fr}
  .statband{grid-template-columns:1fr 1fr;padding:32px 22px;border-radius:24px}
  .stat b{font-size:29px}
  .engine{border-radius:26px;padding:40px 24px}
  .engine-list{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .cta-box{padding:48px 24px;border-radius:26px}
  .cta-box h2{font-size:26px}
  .ft-main{grid-template-columns:1fr;gap:30px}
  .ft-bottom{flex-direction:column;gap:8px}
  .nitem{grid-template-columns:1fr;gap:12px}
  .nitem .go{display:none}
  .grid-2,.grid-3{grid-template-columns:1fr}
  .dark-band{padding:38px 24px;border-radius:24px}
  .dark-stats{grid-template-columns:1fr;gap:18px}
  .float-tag{display:none}
  .hero-mini{gap:22px}
  .aicard{border-radius:24px}
}