/* ============================================================
   ljepay · Blue Whale Pay — Enterprise Business Theme v5.0
   深海海军蓝 + 单一品牌蓝 · 白底细边框卡片体系
   ============================================================ */

:root{
  --navy:#0A2145;
  --navy-2:#0E2E60;
  --ink:#13233D;
  --ink-2:#21365A;
  --body:#46586F;
  --muted:#8292A8;
  --line:#E3E8F0;
  --line-2:#D2DCEB;
  --brand:#1565D8;
  --brand-2:#0E53B4;
  --brand-3:#0A4494;
  --brand-soft:#EAF2FD;
  --brand-soft-2:#D9E8FB;
  --bg:#FFFFFF;
  --soft:#F5F7FB;
  --soft-2:#EDF2F9;
  --green:#0F9D58;
  --green-soft:#E6F6EE;
  --red:#D9484F;
  --red-soft:#FBECEC;
  --amber:#C97A12;
  --shadow-sm:0 1px 2px rgba(13,32,64,.05);
  --shadow:0 10px 30px rgba(13,32,64,.08);
  --shadow-lg:0 24px 60px rgba(13,32,64,.14);
  --r-sm:6px;
  --r:10px;
  --r-lg:14px;
  --ease:cubic-bezier(.25,.46,.28,.94);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--body);
  background:var(--bg);
  font-size:15px;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:0;background:none}
em{font-style:normal}
svg{display:block}

.lj-container{max-width:1200px;margin:0 auto;padding:0 24px}
.lj-main{min-height:60vh}

/* ---------------- generic section ---------------- */
.lj-section{padding:88px 0}
.lj-section-soft{background:var(--soft)}
.lj-center{text-align:center;justify-content:center}

.lj-sec-head{max-width:720px;margin:0 auto 52px;text-align:center}
.lj-sec-head p{margin-top:14px;font-size:15px;color:var(--body)}
.lj-sec-head h2{
  margin-top:16px;
  font-size:31px;
  line-height:1.32;
  font-weight:700;
  color:var(--ink);
  letter-spacing:-.01em;
}

/* eyebrow label */
.lj-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--brand);
}
.lj-eyebrow i{width:6px;height:6px;background:var(--brand);border-radius:1px;transform:rotate(0)}
.lj-eyebrow-dark{color:var(--brand)}

/* ---------------- buttons ---------------- */
.lj-btn{
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:0 22px;
  height:44px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  white-space:nowrap;
  transition:all .22s var(--ease);
  border:1px solid transparent;
}
.lj-btn svg{width:17px;height:17px}
.lj-btn-lg{height:50px;padding:0 30px;font-size:15.5px}
.lj-btn-sm{height:38px;padding:0 18px;font-size:14px}
.lj-btn-primary{
  background:var(--brand);
  color:#fff;
  box-shadow:0 6px 16px rgba(21,101,216,.22);
}
.lj-btn-primary:hover{background:var(--brand-2);box-shadow:0 8px 22px rgba(21,101,216,.3);transform:translateY(-1px)}
.lj-btn-primary:active{transform:translateY(0)}
.lj-btn-ghost{
  background:#fff;
  color:var(--ink-2);
  border-color:var(--line-2);
  box-shadow:var(--shadow-sm);
}
.lj-btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.lj-btn-lightghost{
  background:rgba(255,255,255,.08);
  color:#fff;
  border-color:rgba(255,255,255,.45);
}
.lj-btn-lightghost:hover{background:rgba(255,255,255,.16);border-color:#fff}

/* ============================================================
   PRELOADER — 蓝鲸加载动画（商务白底）
   ============================================================ */
.lj-preloader{
  position:fixed;
  inset:0;
  z-index:200;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:26px;
  background:linear-gradient(180deg,#F6F9FE 0%,#EDF3FB 100%);
  transition:opacity .55s var(--ease),visibility .55s;
}
.lj-preloader.lj-hide{opacity:0;visibility:hidden}
.lj-pl-scene{position:relative;width:150px;height:150px;display:flex;align-items:center;justify-content:center}
.lj-pl-scene::before{
  content:"";
  position:absolute;
  inset:0;
  border-radius:50%;
  background:radial-gradient(circle at 50% 42%,#DCEBFD 0%,#EAF2FD 55%,rgba(234,242,253,0) 74%);
}
.lj-pl-whale{
  position:relative;
  width:92px;
  animation:ljPlFloat 2.4s ease-in-out infinite;
  filter:drop-shadow(0 10px 18px rgba(21,101,216,.25));
}
.lj-pl-bubble{
  position:absolute;
  border-radius:50%;
  background:radial-gradient(circle at 32% 30%,#9EC2F4,#1565D8);
  opacity:0;
  animation:ljPlBubble 2.6s ease-in infinite;
}
.lj-pl-bubble.b1{width:7px;height:7px;left:52%;top:30px;animation-delay:0s}
.lj-pl-bubble.b2{width:5px;height:5px;left:58%;top:44px;animation-delay:.7s}
.lj-pl-bubble.b3{width:9px;height:9px;left:44%;top:48px;animation-delay:1.3s}
.lj-pl-name{text-align:center}
.lj-pl-name strong{display:block;font-size:21px;font-weight:700;color:var(--ink);letter-spacing:.04em}
.lj-pl-name em{display:block;margin-top:4px;font-size:10.5px;font-weight:700;letter-spacing:.34em;color:var(--brand);font-family:inherit}
.lj-pl-bar{width:210px;height:3px;border-radius:3px;background:#D7E3F3;overflow:hidden}
.lj-pl-bar i{
  display:block;height:100%;width:0;border-radius:3px;
  background:linear-gradient(90deg,var(--brand-2),#3E86E8);
  animation:ljPlBar 1.5s var(--ease) forwards;
}
@keyframes ljPlFloat{0%,100%{transform:translateY(0) rotate(-1.5deg)}50%{transform:translateY(-9px) rotate(1.5deg)}}
@keyframes ljPlBubble{
  0%{opacity:0;transform:translateY(8px) scale(.5)}
  35%{opacity:.85}
  100%{opacity:0;transform:translateY(-46px) scale(1.1)}
}
@keyframes ljPlBar{0%{width:0}55%{width:62%}100%{width:100%}}

/* ============================================================
   TOP BAR
   ============================================================ */
.lj-topbar{
  background:var(--navy);
  color:rgba(255,255,255,.72);
  font-size:12.5px;
  height:36px;
  display:flex;
  align-items:center;
}
.lj-topbar-inner{display:flex;align-items:center;justify-content:space-between;width:100%}
.lj-topbar-left{display:flex;align-items:center;gap:8px;min-width:0}
.lj-topbar-left span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lj-topbar-left svg{width:14px;height:14px;color:#7FB0F0;flex:none}
.lj-topbar-right{display:flex;align-items:center;gap:22px}
.lj-topbar-right a{display:inline-flex;align-items:center;gap:6px;color:rgba(255,255,255,.72);transition:color .2s}
.lj-topbar-right a:hover{color:#fff}
.lj-topbar-right svg{width:13px;height:13px}

/* ============================================================
   HEADER / NAV
   ============================================================ */
.lj-header{position:sticky;top:0;z-index:80;background:#fff}
.lj-header::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  transition:box-shadow .25s var(--ease);
}
body.lj-scrolled .lj-header::before{box-shadow:0 1px 0 var(--line),0 8px 24px rgba(13,32,64,.06)}
.lj-header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}

.lj-logo{display:inline-flex;align-items:center;gap:11px}
.lj-logo-mark{width:40px;height:40px;flex:none;filter:drop-shadow(0 4px 10px rgba(21,101,216,.22))}
.lj-logo-mark svg{width:100%;height:100%}
.lj-logo-text strong{display:block;font-size:18px;font-weight:700;color:var(--ink);line-height:1.25;letter-spacing:.01em}
.lj-logo-text em{display:block;font-size:9px;font-weight:700;letter-spacing:.26em;color:var(--brand);font-family:inherit}

/* desktop nav */
.lj-nav{display:flex;align-items:center}
.lj-nav-head,.lj-nav-foot{display:none}
.lj-nav-links{display:contents}
.lj-nav-links a{
  position:relative;
  padding:8px 16px;
  font-size:14.5px;
  font-weight:500;
  color:var(--ink-2);
  transition:color .2s;
}
.lj-nav-links a::after{
  content:"";
  position:absolute;
  left:16px;right:16px;bottom:2px;
  height:2px;border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);transform-origin:center;
  transition:transform .22s var(--ease);
}
.lj-nav-links a:hover{color:var(--brand)}
.lj-nav-links a:hover::after{transform:scaleX(1)}
.lj-nav-no{display:none}

.lj-header-actions{display:flex;align-items:center;gap:12px}
.lj-login-short{display:none}
.lj-menu-toggle{display:none;width:42px;height:42px;flex-direction:column;align-items:center;justify-content:center;gap:5px;border-radius:var(--r-sm)}
.lj-menu-toggle span{display:block;width:21px;height:2px;background:var(--ink);border-radius:2px;transition:.25s var(--ease)}

.lj-nav-mask{
  position:fixed;
  inset:0;
  z-index:79;
  background:rgba(10,24,52,.45);
  backdrop-filter:blur(3px);
  -webkit-backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;
  transition:opacity .3s var(--ease),visibility 0s linear .3s;
}
body.lj-nav-open .lj-nav-mask{opacity:1;visibility:visible;transition:opacity .3s}

/* ============================================================
   HERO
   ============================================================ */
.lj-hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#F4F8FE 0%,#FFFFFF 92%)}
.lj-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center}
.lj-hero-mask{position:absolute;inset:0;background:linear-gradient(115deg,rgba(244,248,254,.92) 0%,rgba(244,248,254,.64) 46%,rgba(244,248,254,.12) 100%)}
.lj-hero-grid{display:none}
.lj-hero-wave{display:none}
.lj-hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:64px;
  align-items:center;
  padding:86px 24px 96px;
}
.lj-hero-copy .lj-eyebrow{
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--shadow-sm);
  padding:7px 14px;
  border-radius:100px;
}
.lj-hero-copy h1{
  margin-top:24px;
  font-size:45px;
  line-height:1.22;
  font-weight:800;
  color:var(--ink);
  letter-spacing:-.015em;
}
.lj-hero-copy h1 .lj-text-gradient{color:var(--brand)}
.lj-hero-quote{
  margin-top:14px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.22em;
  color:var(--muted);
  text-transform:uppercase;
}
.lj-hero-desc{margin-top:20px;font-size:16px;line-height:1.9;color:var(--body);max-width:540px}
.lj-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.lj-hero-trust{
  display:flex;
  flex-wrap:wrap;
  gap:26px;
  margin-top:30px;
}
.lj-hero-trust li{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  font-weight:500;
  color:var(--ink-2);
}
.lj-hero-trust svg{width:17px;height:17px;color:var(--brand)}

/* hero visual — enterprise dashboard */
.lj-hero-visual{position:relative}
.lj-hv-blob,.lj-hv-spark{display:none}
.lj-mock{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-lg);
  overflow:hidden;
}
.lj-mock-head{
  display:flex;
  align-items:center;
  gap:10px;
  padding:13px 18px;
  border-bottom:1px solid var(--line);
  background:var(--soft);
}
.lj-mock-dots{display:inline-flex;gap:6px}
.lj-mock-dots i{width:9px;height:9px;border-radius:50%;background:#C9D4E4}
.lj-mock-dots i:first-child{background:#E08E8E}
.lj-mock-dots i:nth-child(2){background:#DDB96A}
.lj-mock-dots i:nth-child(3){background:#7FB98C}
.lj-mock-title{font-size:13px;font-weight:600;color:var(--ink-2);margin-left:4px}
.lj-mock-live{
  margin-left:auto;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:11px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--green);
  background:var(--green-soft);
  padding:3px 10px;
  border-radius:100px;
}
.lj-mock-live i{width:6px;height:6px;border-radius:50%;background:var(--green);animation:ljLive 1.6s ease-in-out infinite}
@keyframes ljLive{0%,100%{opacity:1}50%{opacity:.3}}
.lj-mock-body{padding:22px 22px 20px}
.lj-hero-visual .lj-mock-body{padding-bottom:56px}
.lj-mock-label{font-size:12.5px;color:var(--muted);font-weight:500}
.lj-mock-amount{
  margin-top:6px;
  font-size:34px;
  font-weight:800;
  color:var(--ink);
  letter-spacing:-.01em;
  font-variant-numeric:tabular-nums;
}
.lj-mock-amount span{font-size:19px;font-weight:700;color:var(--muted)}
.lj-mock-chart{
  display:flex;
  align-items:flex-end;
  gap:7px;
  height:96px;
  margin-top:18px;
  padding-top:10px;
  border-top:1px dashed var(--line);
}
.lj-mock-chart i{
  flex:1;
  border-radius:3px 3px 0 0;
  background:linear-gradient(180deg,#4E93EA,#1565D8);
  opacity:.55;
  transform-origin:bottom;
  animation:ljBar 1s var(--ease) both;
}
.lj-mock-chart i:nth-child(even){opacity:.85}
.lj-mock-chart i:last-child{opacity:1}
.lj-mock-chart.lj-live i{transition:height .55s ease}
@keyframes ljBar{from{transform:scaleY(0)}to{transform:scaleY(1)}}
@keyframes ljToastPop{0%{transform:translateY(3px) scale(.82);opacity:.4}100%{transform:none;opacity:1}}
.lj-float-success strong.lj-pop{animation:ljToastPop .5s ease}
.lj-mock-rows{margin-top:16px;border-top:1px solid var(--line)}
.lj-mock-row{
  display:flex;
  align-items:center;
  gap:9px;
  padding:11px 2px;
  border-bottom:1px solid var(--soft-2);
  font-size:13px;
}
.lj-mock-row:last-child{border-bottom:0;padding-bottom:2px}
.lj-dot{width:8px;height:8px;border-radius:50%;flex:none}
.lj-dot-blue{background:var(--brand)}
.lj-dot-green{background:var(--green)}
.lj-dot-red{background:var(--red)}
.lj-mock-name{color:var(--ink-2);font-weight:500}
.lj-mock-val{margin-left:auto;color:var(--muted);font-variant-numeric:tabular-nums}
.lj-mock-rate{
  font-weight:700;
  color:var(--green);
  font-variant-numeric:tabular-nums;
  min-width:44px;
  text-align:right;
}
.lj-float-card{
  position:absolute;
  display:flex;
  align-items:center;
  gap:11px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r);
  box-shadow:var(--shadow);
  padding:11px 15px;
  animation:ljFloat 4.5s ease-in-out infinite;
}
.lj-float-card p{font-size:11.5px;color:var(--muted);line-height:1.3}
.lj-float-card strong{display:block;font-size:14.5px;color:var(--ink);font-weight:700}
.lj-float-icon{
  width:36px;height:36px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;flex:none;
}
.lj-float-icon svg{width:18px;height:18px}
.lj-float-success{top:-18px;right:-10px}
.lj-float-success .lj-float-icon{background:var(--green-soft);color:var(--green)}
.lj-float-secure{bottom:-16px;left:-14px;animation-delay:.9s}
.lj-float-secure .lj-float-icon{background:var(--brand-soft);color:var(--brand)}
@keyframes ljFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}

/* ============================================================
   STATS — 细边横条数据带
   ============================================================ */
.lj-stats{position:relative;z-index:5;padding:0 24px}
.lj-stats-grid{
  max-width:1200px;
  margin:-44px auto 0;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.lj-stat{
  padding:30px 28px;
  text-align:left;
  border-right:1px solid var(--line);
}
.lj-stat:last-child{border-right:0}
.lj-stat-num{
  font-size:33px;
  font-weight:800;
  color:var(--ink);
  letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
  line-height:1.1;
}
.lj-stat-num em{font-style:normal;font-size:15px;font-weight:600;color:var(--brand);margin-left:3px}
.lj-stat-label{margin-top:8px;font-size:13.5px;color:var(--muted)}

/* ============================================================
   TABS — 通用商务标签组件（产品 / 场景）
   ============================================================ */
.lj-tabs{margin-top:8px}
.lj-tabbar{
  display:flex;
  justify-content:center;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:40px;
}
.lj-tab{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:0 22px;
  height:46px;
  border-radius:var(--r-sm);
  background:#fff;
  border:1px solid var(--line);
  color:var(--ink-2);
  font-size:14.5px;
  font-weight:600;
  transition:all .2s var(--ease);
}
.lj-tab .lj-tab-ic{
  width:26px;height:26px;border-radius:6px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  transition:all .2s var(--ease);
}
.lj-tab .lj-tab-ic svg{width:15px;height:15px}
.lj-tab:hover{border-color:var(--brand-2);color:var(--brand)}
.lj-tab[aria-selected="true"]{
  background:var(--navy);
  border-color:var(--navy);
  color:#fff;
  box-shadow:0 8px 20px rgba(10,33,69,.22);
}
.lj-tab[aria-selected="true"] .lj-tab-ic{background:rgba(255,255,255,.16);color:#fff}

.lj-tab-panel{display:none}
.lj-tab-panel.is-active{display:block;animation:ljTabIn .42s var(--ease)}
@keyframes ljTabIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.lj-tp-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.lj-tp-copy h3{font-size:25px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.lj-tp-copy .lj-tp-sub{margin-top:8px;font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--brand);text-transform:uppercase}
.lj-tp-copy > p{margin-top:16px;font-size:15px;color:var(--body);line-height:1.9}
.lj-tp-list{margin-top:24px;display:grid;gap:14px}
.lj-tp-list li{
  position:relative;
  padding-left:30px;
  font-size:14.5px;
  color:var(--ink-2);
  font-weight:500;
  line-height:1.6;
}
.lj-tp-list li::before{
  content:"";
  position:absolute;
  left:0;top:3px;
  width:19px;height:19px;border-radius:5px;
  background:var(--brand-soft);
}
.lj-tp-list li::after{
  content:"";
  position:absolute;
  left:5px;top:8px;
  width:9px;height:5px;
  border-left:2px solid var(--brand);
  border-bottom:2px solid var(--brand);
  transform:rotate(-45deg);
}
.lj-tp-action{margin-top:30px;display:flex;gap:12px;flex-wrap:wrap}

/* tab visual — generic device / console mock */
.lj-tp-visual{position:relative}
.lj-tp-visual .lj-mock{box-shadow:var(--shadow)}
.lj-mock-tag{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;font-weight:700;
  color:var(--brand);background:var(--brand-soft);
  padding:5px 12px;border-radius:100px;
  margin-bottom:16px;
}
.lj-mock-tag i{width:6px;height:6px;border-radius:50%;background:var(--brand)}
.lj-mock-h3{font-size:18px;font-weight:700;color:var(--ink);margin-bottom:4px}
.lj-mock-note{font-size:12.5px;color:var(--muted);margin-bottom:16px}
.lj-balance{
  display:flex;align-items:baseline;gap:6px;
  background:linear-gradient(135deg,var(--navy),var(--brand-3));
  border-radius:var(--r);
  padding:20px 22px;
  color:#fff;
  margin-bottom:16px;
}
.lj-balance p{font-size:12px;color:rgba(255,255,255,.7);margin:0}
.lj-balance strong{font-size:27px;font-weight:800;letter-spacing:-.01em;font-variant-numeric:tabular-nums}
.lj-balance span{margin-left:auto;font-size:12px;color:rgba(255,255,255,.75)}
.lj-flow{display:grid;gap:0;margin-top:4px}
.lj-flow-step{
  display:flex;align-items:center;gap:13px;
  padding:13px 4px;
  border-bottom:1px solid var(--soft-2);
  font-size:13.5px;color:var(--ink-2);font-weight:500;
}
.lj-flow-step:last-child{border-bottom:0}
.lj-flow-no{
  width:24px;height:24px;border-radius:50%;
  background:var(--navy);color:#fff;
  font-size:11.5px;font-weight:700;
  display:flex;align-items:center;justify-content:center;flex:none;
}
.lj-flow-step em{
  margin-left:auto;font-style:normal;font-size:11.5px;font-weight:700;
  padding:3px 10px;border-radius:100px;
  color:var(--green);background:var(--green-soft);
}
.lj-flow-step:nth-child(3) em{color:var(--brand);background:var(--brand-soft)}
.lj-flow-step:nth-child(4) em{color:var(--amber);background:#FBF1E2}
.lj-status{
  margin-left:auto;
  font-size:11.5px;font-weight:700;
  padding:3px 10px;border-radius:100px;
}
.lj-status.ok{color:var(--green);background:var(--green-soft)}
.lj-status.run{color:var(--brand);background:var(--brand-soft)}
.lj-status.wait{color:var(--amber);background:#FBF1E2}

/* ============================================================
   CHANNELS — 渠道紧凑横排
   ============================================================ */
.lj-channel-grid{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:16px;
}
.lj-channel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r);
  padding:26px 16px 22px;
  text-align:center;
  transition:all .25s var(--ease);
}
.lj-channel:hover{border-color:var(--brand-2);box-shadow:var(--shadow);transform:translateY(-3px)}
.lj-channel-mark{
  width:48px;height:48px;
  margin:0 auto 14px;
  border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:800;
  border:1px solid transparent;
}
.lj-channel h3{font-size:14.5px;font-weight:700;color:var(--ink)}
.lj-channel p{margin-top:5px;font-size:12px;color:var(--muted);line-height:1.5}
.lj-mc-blue{background:var(--brand-soft);color:var(--brand)}
.lj-mc-green{background:var(--green-soft);color:var(--green)}
.lj-mc-red{background:var(--red-soft);color:var(--red)}
.lj-mc-sky{background:#E8F5FD;color:#1E88C7}
.lj-mc-jd{background:var(--red-soft);color:#D33A3F}
.lj-mc-dark{background:#EEF1F6;color:#33415C}

/* ============================================================
   SCENE TABS — 场景图标大徽标
   ============================================================ */
.lj-scene-badge{
  width:64px;height:64px;border-radius:14px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:20px;
}
.lj-scene-badge svg{width:30px;height:30px}
.lj-scene-term{
  display:inline-block;
  font-size:12px;font-weight:700;color:var(--muted);
  border:1px solid var(--line-2);border-radius:4px;
  padding:3px 10px;margin-bottom:14px;letter-spacing:.05em;
}

/* ============================================================
   ADVANTAGE — 紧凑四卡
   ============================================================ */
.lj-adv-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
}
.lj-adv{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r);
  padding:28px 24px 26px;
  transition:all .25s var(--ease);
}
.lj-adv:hover{border-color:var(--line-2);box-shadow:var(--shadow);transform:translateY(-3px)}
.lj-adv-icon{
  width:44px;height:44px;border-radius:9px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;
}
.lj-adv-icon svg{width:22px;height:22px}
.lj-adv h3{font-size:16.5px;font-weight:700;color:var(--ink);margin-bottom:9px}
.lj-adv p{font-size:13.5px;line-height:1.8;color:var(--body)}

/* ============================================================
   STEPS PAGER — 按钮分页
   ============================================================ */
.lj-pager{
  max-width:860px;
  margin:0 auto;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
}
.lj-pager-progress{
  height:3px;background:var(--soft-2);
}
.lj-pager-progress i{
  display:block;height:100%;width:25%;
  background:linear-gradient(90deg,var(--brand-2),var(--brand));
  border-radius:0 3px 3px 0;
  transition:width .35s var(--ease);
}
.lj-pager-body{
  position:relative;
  padding:44px 56px 36px;
  display:grid;
  grid-template-columns:150px 1fr;
  gap:36px;
  align-items:start;
  min-height:232px;
}
.lj-step-pane{display:none}
.lj-step-pane.is-active{display:contents}
.lj-step-pane.is-active .lj-pane-num,
.lj-step-pane.is-active .lj-pane-main{animation:ljTabIn .4s var(--ease)}
.lj-pane-main{min-width:0}
.lj-pane-num{
  font-size:72px;
  font-weight:800;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1.5px var(--brand-soft-2);
  letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
}
.lj-pane-icon{
  width:52px;height:52px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;
}
.lj-pane-icon svg{width:25px;height:25px}
.lj-pager-body h3{font-size:22px;font-weight:700;color:var(--ink)}
.lj-pager-body p{margin-top:12px;font-size:15px;color:var(--body);line-height:1.85;max-width:480px}
.lj-pager-body p a{color:var(--brand);font-weight:600;border-bottom:1px solid var(--brand-soft-2)}
.lj-pager-body p a:hover{border-bottom-color:var(--brand)}
.lj-pager-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 32px;
  border-top:1px solid var(--line);
  background:var(--soft);
}
.lj-pager-dots{display:flex;gap:8px}
.lj-pager-dots button{
  width:26px;height:5px;border-radius:3px;
  background:var(--line-2);
  transition:all .25s var(--ease);
}
.lj-pager-dots button.is-current{background:var(--brand);width:38px}
.lj-pager-nav{display:flex;gap:10px}
.lj-page-btn{
  display:inline-flex;align-items:center;gap:7px;
  height:40px;padding:0 20px;
  border-radius:var(--r-sm);
  border:1px solid var(--line-2);
  background:#fff;
  color:var(--ink-2);
  font-size:14px;font-weight:600;
  transition:all .2s var(--ease);
}
.lj-page-btn svg{width:15px;height:15px}
.lj-page-btn:hover:not(:disabled){border-color:var(--brand);color:var(--brand)}
.lj-page-btn:disabled{opacity:.38;cursor:not-allowed}
.lj-page-btn.is-primary{background:var(--brand);border-color:var(--brand);color:#fff}
.lj-page-btn.is-primary:hover{background:var(--brand-2);color:#fff}

/* ============================================================
   CTA — 深海蓝带
   ============================================================ */
.lj-cta{
  position:relative;
  overflow:hidden;
  background:var(--navy);
  padding:84px 0;
}
.lj-cta-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.9}
.lj-cta-mask{position:absolute;inset:0;background:linear-gradient(120deg,rgba(10,33,69,.97),rgba(10,33,69,.85))}
.lj-cta-inner{position:relative;z-index:2;text-align:center;max-width:720px;margin:0 auto}
.lj-cta-inner h2{
  color:#fff;
  font-size:32px;
  font-weight:700;
  letter-spacing:-.01em;
}
.lj-cta-inner > p{
  margin-top:16px;
  color:rgba(255,255,255,.72);
  font-size:15.5px;
  line-height:1.85;
}
.lj-cta-inner .lj-hero-actions{margin-top:32px}
.lj-cta-links{
  margin-top:26px;
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:0;
  font-size:13px;
}
.lj-cta-links a{color:rgba(255,255,255,.6);padding:4px 14px;transition:color .2s}
.lj-cta-links a:hover{color:#fff}
.lj-cta-links i{width:1px;height:12px;background:rgba(255,255,255,.22);align-self:center}

/* ============================================================
   INNER PAGE HERO
   ============================================================ */
.lj-page-hero{
  position:relative;
  overflow:hidden;
  background:linear-gradient(180deg,#F4F8FE,#fff);
  padding:84px 0 88px;
  text-align:center;
}
.lj-page-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center}
.lj-page-hero-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(244,248,254,.72),rgba(255,255,255,.9))}
.lj-page-hero .lj-container{position:relative;z-index:2}
.lj-page-hero h1{
  margin:18px 0 18px;
  color:var(--ink);
  font-size:37px;
  font-weight:800;
  letter-spacing:-.015em;
  line-height:1.3;
}
.lj-page-hero > .lj-container > p:last-child{
  color:var(--body);
  max-width:640px;
  margin:0 auto;
  font-size:15.5px;
  line-height:1.9;
}
.lj-crumb{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
}
.lj-crumb a{color:var(--brand);font-weight:500}
.lj-crumb b{font-weight:500;color:var(--ink-2)}
.lj-crumb a:hover{text-decoration:underline}

/* ============================================================
   FEATURE / PROSE CARDS（功能介绍页）
   ============================================================ */
.lj-feature-band{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.lj-feature-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r);
  padding:30px 28px;
  transition:all .25s var(--ease);
  display:flex;
  flex-direction:column;
}
.lj-feature-card:hover{border-color:var(--line-2);box-shadow:var(--shadow);transform:translateY(-3px)}
.lj-feature-card .lj-scene-icon{
  width:46px;height:46px;border-radius:10px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;
}
.lj-feature-card .lj-scene-icon svg{width:23px;height:23px}
.lj-feature-card h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:10px}
.lj-feature-card > p{font-size:13.5px;line-height:1.8;color:var(--body)}
.lj-feature-card ul{
  margin-top:16px;
  padding-top:16px;
  border-top:1px solid var(--soft-2);
  display:grid;gap:10px;
}
.lj-feature-card li{
  position:relative;
  padding-left:18px;
  font-size:13px;
  color:var(--ink-2);
  line-height:1.6;
}
.lj-feature-card li::before{
  content:"";
  position:absolute;
  left:2px;top:9px;
  width:5px;height:5px;border-radius:1px;
  background:var(--brand);
}

.lj-prose{padding:88px 0;background:var(--soft)}
.lj-prose-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
}
.lj-prose-text h2{margin:16px 0 18px;font-size:29px;font-weight:700;color:var(--ink);letter-spacing:-.01em;line-height:1.35}
.lj-prose-text > p{font-size:15px;line-height:1.9;color:var(--body)}
.lj-prose-text ul{margin-top:26px;display:grid;gap:14px}
.lj-prose-text li{
  position:relative;
  padding-left:30px;
  font-size:14.5px;
  color:var(--ink-2);
  font-weight:500;
}
.lj-prose-text li::before{
  content:"";
  position:absolute;left:0;top:2px;
  width:20px;height:20px;border-radius:5px;background:var(--brand-soft);
}
.lj-prose-text li::after{
  content:"";
  position:absolute;left:5.5px;top:8px;
  width:9px;height:5px;
  border-left:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(-45deg);
}
.lj-prose-media .lj-mock{box-shadow:var(--shadow)}

/* ============================================================
   VALUE / CONTACT CARDS（关于我们页）
   ============================================================ */
.lj-value-grid{
  margin-top:64px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.lj-value-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r);
  padding:32px 28px;
  transition:all .25s var(--ease);
}
.lj-value-card:hover{border-color:var(--line-2);box-shadow:var(--shadow);transform:translateY(-3px)}
.lj-value-card .lj-scene-icon{
  width:46px;height:46px;border-radius:10px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;
}
.lj-value-card .lj-scene-icon svg{width:23px;height:23px}
.lj-value-card h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:10px}
.lj-value-card p{font-size:13.5px;line-height:1.85;color:var(--body)}

.lj-contact-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
  gap:18px;
  max-width:1040px;
  margin:0 auto;
}
.lj-contact-card{
  display:flex;
  align-items:center;
  gap:16px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r);
  padding:24px 26px;
  transition:all .25s var(--ease);
}
a.lj-contact-card:hover{border-color:var(--brand-2);box-shadow:var(--shadow);transform:translateY(-3px)}
.lj-contact-card .lj-scene-icon{
  width:46px;height:46px;border-radius:10px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  flex:none;
}
.lj-contact-card .lj-scene-icon svg{width:22px;height:22px}
.lj-contact-card h3{font-size:15.5px;font-weight:700;color:var(--ink);margin-bottom:3px}
.lj-contact-card p{font-size:13px;color:var(--muted);line-height:1.5}
.lj-contact-card a{color:var(--brand);font-weight:500}
.lj-contact-card a:hover{text-decoration:underline}

/* ============================================================
   FOOTER
   ============================================================ */
.lj-footer{
  background:var(--navy);
  color:rgba(255,255,255,.62);
  padding-top:68px;
}
.lj-footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr 1.2fr;
  gap:44px;
  padding-bottom:52px;
}
.lj-logo-footer .lj-logo-text strong{color:#fff}
.lj-logo-footer .lj-logo-text em{color:#7FB0F0}
.lj-footer-intro{margin-top:20px;font-size:13px;line-height:1.9;color:rgba(255,255,255,.55);max-width:320px}
.lj-footer-badges{margin-top:20px;display:flex;gap:18px;flex-wrap:wrap}
.lj-footer-badges span{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;
  color:rgba(255,255,255,.75);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-sm);
  padding:6px 12px;
}
.lj-footer-badges svg{width:13px;height:13px;color:#7FB0F0}
.lj-footer-col h4{
  color:#fff;
  font-size:14px;
  font-weight:700;
  margin-bottom:20px;
  letter-spacing:.02em;
}
.lj-footer-col a{
  display:block;
  padding:6px 0;
  font-size:13.5px;
  color:rgba(255,255,255,.58);
  transition:color .2s;
}
.lj-footer-col a:hover{color:#fff}
.lj-footer-contact p{
  display:flex;
  gap:10px;
  padding:6px 0;
  font-size:13px;
  color:rgba(255,255,255,.58);
}
.lj-footer-contact svg{width:15px;height:15px;color:#7FB0F0;flex:none;margin-top:4px}
.lj-footer-contact a{display:inline;padding:0}
.lj-footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0;
}
.lj-footer-bottom-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:12.5px;
  color:rgba(255,255,255,.42);
}
.lj-footer-tech{letter-spacing:.14em;color:rgba(255,255,255,.45)}

/* back to top */
.lj-backtop{
  position:fixed;
  right:26px;bottom:26px;
  width:44px;height:44px;border-radius:var(--r-sm);
  background:var(--navy);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow);
  opacity:0;visibility:hidden;
  transform:translateY(12px);
  transition:all .28s var(--ease);
  z-index:70;
}
.lj-backtop svg{width:19px;height:19px}
.lj-backtop:hover{background:var(--brand-2)}
.lj-backtop.show{opacity:1;visibility:visible;transform:translateY(0)}

/* ============================================================
   REVEAL
   ============================================================ */
html.lj-anim .lj-reveal{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
html.lj-anim .lj-reveal.lj-in{opacity:1;transform:translateY(0)}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1100px){
  .lj-hero-inner{grid-template-columns:1fr;gap:52px;padding:64px 24px 78px}
  .lj-hero-copy{max-width:640px}
  .lj-channel-grid{grid-template-columns:repeat(3,1fr)}
  .lj-adv-grid{grid-template-columns:repeat(2,1fr)}
  .lj-footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:36px}
  .lj-footer-contact{grid-column:1/-1}
}

@media (max-width:900px){
  /* mobile drawer */
  .lj-nav{
    position:fixed;
    top:0;right:0;
    width:min(340px,86vw);
    height:100dvh;
    z-index:81;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    box-shadow:-16px 0 48px rgba(10,24,52,.18);
    transform:translateX(102%);
    visibility:hidden;
    transition:transform .32s var(--ease),visibility 0s linear .32s;
  }
  body.lj-nav-open .lj-nav{transform:translateX(0);visibility:visible;transition:transform .32s var(--ease)}
  .lj-nav-head{
    display:flex;align-items:center;justify-content:space-between;
    padding:18px 20px;
    border-bottom:1px solid var(--line);
  }
  .lj-nav-head-logo{display:flex;align-items:center;gap:10px}
  .lj-nav-head-logo .lj-logo-mark{width:34px;height:34px}
  .lj-nav-head-logo strong{display:block;font-size:15.5px;color:var(--ink);font-weight:700;line-height:1.2}
  .lj-nav-head-logo em{display:block;font-size:9px;letter-spacing:.24em;color:var(--brand);font-weight:700}
  .lj-nav-close{
    width:36px;height:36px;border-radius:8px;
    border:1px solid var(--line);
    color:var(--ink-2);
    display:flex;align-items:center;justify-content:center;
  }
  .lj-nav-close svg{width:17px;height:17px}
  .lj-nav-close:hover{border-color:var(--brand);color:var(--brand)}
  .lj-nav-links{
    display:flex;
    flex-direction:column;
    padding:14px 16px;
    gap:2px;
    overflow-y:auto;
    flex:1;
  }
  .lj-nav-links a{
    display:flex;
    align-items:center;
    gap:12px;
    padding:14px 14px;
    border-radius:var(--r-sm);
    font-size:15px;
    color:var(--ink);
    border:1px solid transparent;
  }
  .lj-nav-links a::after{display:none}
  .lj-nav-links a:active{background:var(--brand-soft)}
  .lj-nav-no{
    display:inline-flex;
    width:30px;flex:none;
    font-size:11.5px;font-weight:700;
    color:var(--brand);
    letter-spacing:.06em;
  }
  .lj-nav-foot{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:10px;
    padding:14px 16px calc(16px + env(safe-area-inset-bottom));
    border-top:1px solid var(--line);
    background:var(--soft);
  }
  .lj-nav-foot .lj-btn{width:100%;padding:0 10px}
  .lj-menu-toggle{display:flex}
  /* 手机端顶栏：保留「登录」直达入口（超窄屏缩写为两字）；
     隐藏「免费注册」——首屏 hero 主按钮与抽屉菜单底部均有注册入口，避免重复 */
  .lj-header-actions .lj-btn-primary{display:none}
  .lj-login-full{display:none}
  .lj-login-short{display:inline}

  .lj-feature-band{grid-template-columns:repeat(2,1fr)}
  .lj-prose-grid{grid-template-columns:1fr;gap:44px}
  .lj-tp-grid{grid-template-columns:1fr;gap:36px}
  .lj-tp-visual{order:2}
}

@media (max-width:680px){
  .lj-section{padding:62px 0}
  .lj-sec-head{margin-bottom:36px}
  .lj-sec-head h2{font-size:25px}
  .lj-topbar{display:none}

  .lj-header-inner{height:60px}
  .lj-logo-mark{width:36px;height:36px}
  .lj-logo-text strong{font-size:16.5px}
  .lj-header-actions{gap:10px}
  .lj-header-actions .lj-btn-ghost{height:38px;padding:0 14px;font-size:13.5px}

  .lj-hero-inner{padding:44px 24px 64px;gap:40px}
  .lj-hero-copy h1{font-size:31px;line-height:1.28}
  .lj-hero-quote{letter-spacing:.16em;font-size:11.5px}
  .lj-hero-desc{font-size:14.5px}
  .lj-hero-actions{margin-top:26px;gap:10px}
  .lj-hero-actions .lj-btn{width:100%}
  .lj-hero-trust{gap:12px 20px;margin-top:24px}
  .lj-hero-visual{padding:14px 0 0}
  .lj-float-card{
    position:static;display:inline-flex;vertical-align:top;width:auto;
    margin:12px 8px 0 0;animation:none;box-shadow:var(--shadow-sm)
  }
  .lj-float-success,.lj-float-secure{padding:9px 12px}
  .lj-float-card p{font-size:10.5px}
  .lj-float-card strong{font-size:13px}
  .lj-mock-body{padding:18px 16px}
  .lj-mock-amount{font-size:28px}
  .lj-mock-chart{height:76px;gap:5px}

  .lj-stats-grid{margin-top:-34px;grid-template-columns:1fr 1fr}
  .lj-stat{padding:22px 20px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
  .lj-stat:nth-child(2n){border-right:0}
  .lj-stat:nth-child(n+3){border-bottom:0}
  .lj-stat-num{font-size:27px}

  .lj-tabbar{
    flex-wrap:nowrap;
    justify-content:flex-start;
    overflow-x:auto;
    margin:0 -24px 30px;
    padding:2px 24px 10px;
    -webkit-overflow-scrolling:touch;
    scrollbar-width:none;
  }
  .lj-tabbar::-webkit-scrollbar{display:none}
  .lj-tab{flex:none;padding:0 16px;height:42px;font-size:13.5px}
  .lj-tp-copy h3{font-size:21px}
  .lj-tp-action .lj-btn{width:100%}

  .lj-channel-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .lj-channel{padding:20px 12px 16px}
  .lj-adv-grid{grid-template-columns:1fr;gap:12px}
  .lj-adv{padding:24px 22px}

  .lj-pager-body{grid-template-columns:1fr;gap:18px;padding:30px 24px 28px;min-height:0}
  .lj-pane-num{font-size:52px}
  .lj-pager-foot{flex-direction:column-reverse;align-items:stretch;gap:14px;padding:16px 18px}
  .lj-pager-dots{justify-content:center;order:3}
  .lj-pager-nav{justify-content:space-between}
  .lj-page-btn{flex:1}
  .lj-pager-body h3{font-size:19px}

  .lj-cta{padding:60px 0}
  .lj-cta-inner h2{font-size:25px}
  .lj-cta-inner .lj-hero-actions .lj-btn{width:100%}
  .lj-cta-links i{display:none}

  .lj-page-hero{padding:56px 0 60px}
  .lj-page-hero h1{font-size:27px}
  .lj-feature-band{grid-template-columns:1fr;gap:14px}
  .lj-value-grid{grid-template-columns:1fr;gap:12px;margin-top:40px}
  .lj-contact-grid{grid-template-columns:1fr;gap:12px}
  .lj-prose{padding:62px 0}
  .lj-prose-text h2{font-size:23px}

  .lj-footer{padding-top:48px}
  .lj-footer-grid{grid-template-columns:1fr 1fr;gap:30px 24px;padding-bottom:36px}
  .lj-footer-brand{grid-column:1/-1}
  .lj-footer-contact{grid-column:1/-1}
  .lj-footer-bottom-inner{flex-direction:column;text-align:center;gap:6px}

  .lj-backtop{right:16px;bottom:16px;width:40px;height:40px}
}

@media (max-width:380px){
  .lj-header-actions{gap:8px}
  .lj-header-actions .lj-btn-ghost{height:36px;padding:0 12px}
  .lj-menu-toggle{width:38px;height:38px}
  .lj-hero-copy h1{font-size:27px}
  .lj-channel-grid{grid-template-columns:1fr 1fr}
}

/* ============================================================
   开发文档页 · lj-doc  v1.5.0
   白底卡片 + 左侧锚点目录 + 轻量代码块
   ============================================================ */
.lj-doc-hero{
  background:
    radial-gradient(900px 260px at 85% -60%, rgba(21,101,216,.08), transparent 60%),
    linear-gradient(180deg,var(--soft) 0%, #fff 100%);
  border-bottom:1px solid var(--line);
  padding:46px 0 40px;
}
.lj-doc-crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.lj-doc-crumb a{color:var(--muted)}
.lj-doc-crumb a:hover{color:var(--brand)}
.lj-doc-crumb i{font-style:normal;color:var(--line-2)}
.lj-doc-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;align-items:end;margin-top:20px}
.lj-doc-hero h1{font-size:34px;line-height:1.25;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.lj-doc-hero-main p{margin-top:14px;font-size:15px;color:var(--body);max-width:640px}
.lj-doc-hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.lj-ver-badge{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;color:var(--ink-2);background:#fff;border:1px solid var(--line-2);
}
.lj-ver-v2{color:var(--brand-2);background:var(--brand-soft);border-color:var(--brand-soft-2)}
.lj-ver-v1{color:var(--amber);background:#FBF3E7;border-color:#EFDFC2}
.lj-doc-hero-side{display:flex;flex-direction:column;gap:10px}
.lj-doc-dl{width:100%}
.lj-doc-dl svg{flex:none}
.lj-doc-hero-note{font-size:12.5px;color:var(--muted);line-height:1.6}

.lj-doc-body{background:#fff;padding:34px 0 90px}
.lj-doc-layout{display:grid;grid-template-columns:208px minmax(0,1fr);gap:34px;align-items:start}

/* 左侧目录 */
.lj-doc-toc{position:sticky;top:88px}
.lj-doc-toc-inner{border-left:1px solid var(--line)}
.lj-doc-toc-group{padding:0 0 14px;margin-bottom:14px;border-bottom:1px dashed var(--line)}
.lj-doc-toc-group:last-child{border-bottom:0;margin-bottom:0}
.lj-doc-toc-group h4{
  margin:2px 0 8px;padding-left:14px;font-size:11.5px;font-weight:700;letter-spacing:.14em;
  color:var(--muted);text-transform:uppercase;
}
.lj-doc-toc-group a{
  display:block;padding:6px 0 6px 14px;margin-left:-1px;border-left:2px solid transparent;
  font-size:13.5px;color:var(--body);line-height:1.45;transition:all .18s var(--ease);
}
.lj-doc-toc-group a:hover{color:var(--brand)}
.lj-doc-toc-group a.active{color:var(--brand-2);font-weight:600;border-left-color:var(--brand);background:linear-gradient(90deg,var(--brand-soft),transparent)}

/* 内容卡片 */
.lj-doc-section{scroll-margin-top:86px}
.lj-doc-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px 32px;margin-bottom:22px;box-shadow:var(--shadow-sm);
}
.lj-doc-card-head{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.lj-doc-no{
  flex:none;font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--brand);
  background:var(--brand-soft);border:1px solid var(--brand-soft-2);border-radius:6px;padding:3px 8px;
}
.lj-doc-card h2{font-size:23px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.lj-doc-h3{margin:26px 0 12px;font-size:16px;font-weight:700;color:var(--ink)}
.lj-doc-card p{margin:10px 0;color:var(--body);font-size:14.5px}
.lj-doc-card > p:first-of-type{margin-top:0}
.lj-doc-list{margin:12px 0;padding-left:2px}
.lj-doc-list li{position:relative;padding:6px 0 6px 20px;font-size:14.5px;color:var(--body);line-height:1.7}
.lj-doc-list li::before{content:"";position:absolute;left:4px;top:15px;width:6px;height:6px;border-radius:50%;background:var(--brand)}
.lj-doc-ol{margin:12px 0;padding-left:22px}
.lj-doc-ol li{padding:5px 0;font-size:14.5px;color:var(--body);line-height:1.75}
.lj-doc-ol li::marker{color:var(--brand);font-weight:700}
.lj-doc-card code{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  font-size:12.5px;color:var(--brand-3);background:var(--brand-soft);border:1px solid var(--brand-soft-2);
  border-radius:4px;padding:1px 6px;word-break:break-all;
}
.lj-doc-card a{color:var(--brand);font-weight:500}
.lj-doc-card a:hover{text-decoration:underline}
.lj-doc-card strong{color:var(--ink);font-weight:600}

/* 接口地址条 */
.lj-doc-endpoint{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:14px 0 12px;
  background:var(--soft);border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;
}
.lj-doc-method{
  flex:none;font-size:11.5px;font-weight:700;letter-spacing:.04em;border-radius:4px;padding:3px 8px;
}
.lj-m-post{color:#fff;background:var(--brand)}
.lj-m-get{color:#0B7A43;background:var(--green-soft)}
.lj-doc-endpoint .lj-doc-url{
  flex:1 1 auto;min-width:0;
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  font-size:13px;color:var(--ink);background:transparent;border:0;padding:0;
  word-break:break-all;
}
.lj-doc-copy-btn{
  flex:none;font-size:12.5px;font-weight:600;color:var(--brand-2);background:#fff;
  border:1px solid var(--brand-soft-2);border-radius:6px;padding:5px 12px;transition:all .18s var(--ease);
}
.lj-doc-copy-btn:hover{background:var(--brand-soft)}
.lj-doc-copy-btn.is-done{color:#fff;background:var(--green);border-color:var(--green)}

/* 参数表格 */
.lj-doc-table-wrap{margin:12px 0;border:1px solid var(--line);border-radius:var(--r);overflow-x:auto;-webkit-overflow-scrolling:touch}
.lj-doc-table{width:100%;border-collapse:collapse;font-size:13.5px;min-width:560px}
.lj-doc-table th{
  text-align:left;padding:11px 14px;background:var(--soft);color:var(--ink-2);
  font-weight:600;white-space:nowrap;border-bottom:1px solid var(--line);
}
.lj-doc-table td{padding:10px 14px;color:var(--body);border-bottom:1px solid var(--line);vertical-align:top;line-height:1.6}
.lj-doc-table tr:last-child td{border-bottom:0}
.lj-doc-table tbody tr:hover{background:#FAFCFF}
.lj-doc-table td code{white-space:nowrap}
.lj-tag{display:inline-block;font-size:11.5px;font-weight:600;border-radius:4px;padding:2px 8px;white-space:nowrap}
.lj-tag-yes{color:#fff;background:var(--brand)}
.lj-tag-mid{color:var(--amber);background:#FBF3E7;border:1px solid #EFDFC2}
.lj-tag-no{color:var(--muted);background:var(--soft);border:1px solid var(--line)}

/* 代码块 */
.lj-doc-code{margin:16px 0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#FBFCFE}
.lj-doc-code-head{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:9px 14px;background:var(--soft);border-bottom:1px solid var(--line);
  font-size:12.5px;font-weight:600;color:var(--ink-2);
}
.lj-doc-code pre{margin:0;padding:16px 18px;overflow-x:auto;-webkit-overflow-scrolling:touch}
.lj-doc-code pre code{
  display:block;font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  font-size:13px;line-height:1.75;color:var(--ink);background:none;border:0;padding:0;
  white-space:pre;word-break:normal;border-radius:0;
}

/* 提示条 */
.lj-doc-note,.lj-doc-warn{display:flex;gap:12px;margin:16px 0 4px;padding:13px 16px;border-radius:var(--r);font-size:13.5px;line-height:1.7}
.lj-doc-note{background:var(--brand-soft);border:1px solid var(--brand-soft-2)}
.lj-doc-note svg{flex:none;width:18px;height:18px;margin-top:2px;color:var(--brand)}
.lj-doc-note p{margin:0;color:var(--brand-3)}
.lj-doc-warn{background:#FBF3E7;border:1px solid #EFDFC2}
.lj-doc-warn svg{flex:none;width:18px;height:18px;margin-top:2px;color:var(--amber)}
.lj-doc-warn p{margin:0;color:#7A5316}

/* 接入步骤 */
.lj-doc-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:6px 0 18px}
.lj-doc-steps li{
  border:1px solid var(--line);border-radius:var(--r);padding:18px 16px;background:linear-gradient(180deg,#fff,var(--soft));
}
.lj-doc-step-no{font-size:11px;font-weight:700;letter-spacing:.1em;color:var(--brand)}
.lj-doc-steps h3{margin:8px 0 6px;font-size:15px;color:var(--ink)}
.lj-doc-steps p{margin:0;font-size:13px;line-height:1.65;color:var(--body)}

/* SDK 卡片 */
.lj-doc-sdk-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:8px 0 4px}
.lj-doc-sdk{
  display:flex;gap:16px;align-items:center;padding:20px;border:1px solid var(--line);border-radius:var(--r-lg);
  background:#fff;transition:all .22s var(--ease);
}
.lj-doc-sdk:hover{border-color:var(--brand-soft-2);box-shadow:var(--shadow);transform:translateY(-2px)}
.lj-doc-sdk-icon{
  flex:none;width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);
}
.lj-doc-sdk-icon svg{width:24px;height:24px}
.lj-doc-sdk-body{display:flex;flex-direction:column;gap:3px;min-width:0}
.lj-doc-sdk-body strong{font-size:15px;color:var(--ink)}
.lj-doc-sdk-body em{font-size:12.5px;color:var(--muted);font-style:normal}
.lj-doc-sdk-link{margin-top:4px;font-size:13.5px;font-weight:600;color:var(--brand)}

@media (max-width:1100px){
  .lj-doc-hero-grid{grid-template-columns:minmax(0,1fr) 270px;gap:28px}
  .lj-doc-layout{grid-template-columns:188px minmax(0,1fr);gap:24px}
  .lj-doc-steps{grid-template-columns:1fr 1fr}
}

@media (max-width:900px){
  .lj-doc-hero{padding:34px 0 30px}
  .lj-doc-hero-grid{grid-template-columns:1fr;gap:22px;align-items:start}
  .lj-doc-hero h1{font-size:27px}
  .lj-doc-hero-side{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .lj-doc-hero-side .lj-btn{width:100%}
  .lj-doc-hero-note{grid-column:1/-1}

  /* 目录转横向胶囊条 */
  .lj-doc-body{padding:0 0 64px}
  .lj-doc-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .lj-doc-content{min-width:0}
  .lj-doc-toc{
    position:sticky;top:68px;z-index:40;margin:0 -24px;background:rgba(255,255,255,.96);
    backdrop-filter:blur(8px);border-bottom:1px solid var(--line);box-shadow:0 4px 14px rgba(13,32,64,.05);
  }
  .lj-doc-section{scroll-margin-top:122px}
  .lj-doc-toc-inner{
    display:flex;gap:6px;border-left:0;padding:10px 24px;overflow-x:auto;
    -webkit-overflow-scrolling:touch;scrollbar-width:none;
  }
  .lj-doc-toc-inner::-webkit-scrollbar{display:none}
  .lj-doc-toc-group{display:flex;align-items:center;gap:4px;border:0;padding:0;margin:0;flex:none}
  .lj-doc-toc-group h4{
    margin:0 6px 0 0;padding:4px 0 4px 2px;font-size:11px;letter-spacing:.08em;white-space:nowrap;color:var(--muted);
  }
  .lj-doc-toc-group a{
    padding:6px 12px;margin-left:0;border-left:0;border:1px solid var(--line-2);border-radius:999px;
    font-size:13px;white-space:nowrap;background:#fff;
  }
  .lj-doc-toc-group a.active{
    background:var(--brand);border-color:var(--brand);color:#fff;
    background-image:none;
  }
  .lj-doc-content{padding-top:22px}
  .lj-doc-card{padding:22px 18px}
  .lj-doc-card h2{font-size:20px}
  .lj-doc-sdk-grid{grid-template-columns:1fr}
}

@media (max-width:680px){
  .lj-doc-steps{grid-template-columns:1fr}
  .lj-doc-hero-side{grid-template-columns:1fr}
  .lj-doc-endpoint{padding:10px 12px}
  .lj-doc-card{padding:20px 15px;border-radius:var(--r)}
  .lj-doc-table{min-width:520px}
  .lj-doc-toc{top:60px}
  .lj-doc-section{scroll-margin-top:112px}
}

@media (max-width:380px){
  .lj-doc-hero h1{font-size:24px}
  .lj-doc-card-head{gap:10px}
  .lj-doc-code pre{padding:14px}
}