/* roulang page: index */
:root{
  --brand-1:#7c3aed;
  --brand-2:#c026d3;
  --brand-3:#ec4899;
  --cyan:#22d3ee;
  --ink:#14121f;
  --ink-2:#4a4660;
  --ink-3:#807c96;
  --bg:#f6f5fb;
  --surface:#ffffff;
  --surface-2:#f2eefc;
  --border:#e7e4f3;
  --r-xl:28px;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(20,18,31,.05), 0 4px 14px rgba(20,18,31,.05);
  --sh-2:0 16px 38px -18px rgba(76,29,149,.30);
  --sh-3:0 34px 74px -32px rgba(76,29,149,.45);
  --grad:linear-gradient(135deg,#7c3aed 0%,#c026d3 54%,#ec4899 100%);
  --grad-soft:linear-gradient(135deg,rgba(124,58,237,.10),rgba(236,72,153,.10));
  --maxw:1280px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:88px;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  font-size:15px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:6px;}

/* ---------- 顶栏 ---------- */
.topbar{
  position:sticky;top:0;z-index:70;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--border);
}
.topbar-inner{
  max-width:var(--maxw);margin:0 auto;padding:10px 24px;
  display:flex;align-items:center;gap:16px;min-height:64px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:.01em;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:16px;font-weight:800;
  box-shadow:0 10px 20px -10px rgba(124,58,237,.95);
}
.brand:hover .brand-mark{transform:rotate(-6deg);}
.brand-mark{transition:transform .25s ease;}
.search-wrap{position:relative;flex:1;max-width:420px;display:none;}
.search-wrap i{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:var(--ink-3);font-size:13px;}
.search-input{
  width:100%;padding:9px 16px 9px 38px;border-radius:999px;
  border:1px solid var(--border);background:#faf9fe;font-size:13.5px;transition:.2s;
}
.search-input::placeholder{color:#a9a5bd;}
.search-input:focus{outline:none;border-color:rgba(124,58,237,.5);background:#fff;box-shadow:0 0 0 4px rgba(124,58,237,.12);}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.chip-ver{
  display:none;align-items:center;gap:6px;font-size:12px;font-weight:700;color:var(--brand-1);
  background:rgba(124,58,237,.09);border:1px solid rgba(124,58,237,.16);
  padding:5px 11px;border-radius:999px;
}
.lang-switch{display:flex;border:1px solid var(--border);border-radius:999px;overflow:hidden;background:#fff;}
.lang-switch a{padding:5px 12px;font-size:12.5px;color:var(--ink-3);font-weight:600;transition:.18s;}
.lang-switch a.active{background:var(--grad);color:#fff;}
.lang-switch a:not(.active):hover{background:var(--surface-2);color:var(--brand-1);}
.nav-toggle{
  display:grid;place-items:center;width:38px;height:38px;border-radius:12px;
  border:1px solid var(--border);background:#fff;cursor:pointer;transition:.2s;
}
.nav-toggle:hover{border-color:rgba(124,58,237,.45);color:var(--brand-1);}

.mobile-nav{display:none;border-top:1px solid var(--border);background:#fff;padding:12px 24px 16px;}
.mobile-nav.open{display:block;}
.mobile-nav a{
  display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:var(--r-md);
  font-size:14.5px;font-weight:600;color:var(--ink-2);transition:.18s;
}
.mobile-nav a:hover, .mobile-nav a.active{background:var(--surface-2);color:var(--brand-1);}

@media(min-width:768px){.search-wrap{display:block;} .chip-ver{display:inline-flex;}}
@media(min-width:1024px){.nav-toggle{display:none;} .mobile-nav{display:none !important;}}

/* ---------- 布局 ---------- */
.layout{
  max-width:var(--maxw);margin:0 auto;padding:28px 24px 0;
  display:grid;grid-template-columns:236px minmax(0,1fr);gap:38px;align-items:start;
}
@media(max-width:1023px){.layout{grid-template-columns:minmax(0,1fr);gap:0;padding:20px 18px 0;}}

/* ---------- 侧边栏 ---------- */
.sidebar{position:sticky;top:88px;display:none;}
@media(min-width:1024px){.sidebar{display:block;}}
.side-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:16px 14px;box-shadow:var(--sh-1);}
.side-card + .side-card{margin-top:16px;}
.side-title{font-size:11px;letter-spacing:.16em;color:var(--ink-3);font-weight:800;margin:0 0 10px 10px;text-transform:uppercase;}
.side-link{
  display:flex;align-items:center;gap:11px;padding:10px 11px;border-radius:var(--r-md);
  font-size:14px;font-weight:600;color:var(--ink-2);transition:.18s;position:relative;
}
.side-link i{width:16px;text-align:center;font-size:13px;color:var(--ink-3);transition:.18s;}
.side-link:hover{background:var(--surface-2);color:var(--brand-1);}
.side-link:hover i{color:var(--brand-1);}
.side-link.active{background:var(--grad-soft);color:var(--brand-1);font-weight:800;}
.side-link.active i{color:var(--brand-1);}
.side-link.active:before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:18px;border-radius:3px;background:var(--grad);
}
.side-stat{display:flex;flex-direction:column;gap:10px;}
.side-stat-row{display:flex;align-items:baseline;justify-content:space-between;gap:10px;}
.side-stat-row b{font-size:17px;font-weight:900;letter-spacing:-.02em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.side-stat-row span{font-size:12.5px;color:var(--ink-3);font-weight:600;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;font-size:14px;font-weight:700;
  border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease,background .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 16px 32px -16px rgba(124,58,237,.95);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 40px -16px rgba(124,58,237,1);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--border);}
.btn-ghost:hover{border-color:rgba(124,58,237,.5);color:var(--brand-1);transform:translateY(-2px);box-shadow:var(--sh-1);}
.btn-sm{padding:8px 16px;font-size:13px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:linear-gradient(140deg,#fbf9ff 0%,#f3eeff 44%,#fdeef7 100%);
  border:1px solid var(--border);padding:36px 34px 30px;margin-bottom:46px;box-shadow:var(--sh-1);
}
.hero:before{
  content:"";position:absolute;right:-110px;top:-150px;width:430px;height:430px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,58,237,.22),transparent 68%);
}
.hero:after{
  content:"";position:absolute;right:70px;bottom:-180px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(236,72,153,.18),transparent 70%);
}
.hero-inner{position:relative;z-index:1;max-width:980px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;color:var(--brand-1);
  background:rgba(255,255,255,.9);border:1px solid rgba(124,58,237,.22);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.hero-tag .dot{width:6px;height:6px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 4px rgba(34,197,94,.18);}
.hero-title{
  font-size:clamp(25px,4.2vw,41px);line-height:1.22;font-weight:900;letter-spacing:-.025em;margin-bottom:14px;
}
.hero-title em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{font-size:clamp(15px,1.7vw,18px);font-weight:800;color:var(--brand-1);margin-bottom:16px;letter-spacing:.01em;}
.hero-lead{font-size:14.8px;line-height:1.95;color:var(--ink-2);margin-bottom:24px;}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;
  border-top:1px dashed rgba(124,58,237,.24);padding-top:20px;
}
.hstat b{display:block;font-size:clamp(18px,2.4vw,25px);font-weight:900;letter-spacing:-.03em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hstat span{display:block;font-size:12.5px;color:var(--ink-3);font-weight:600;margin-top:2px;}
@media(max-width:900px){.hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(max-width:640px){
  .hero{padding:24px 18px 22px;border-radius:22px;}
  .hero-btns .btn{width:100%;}
}

/* ---------- 通用板块 ---------- */
.sec{margin-bottom:58px;}
.sec-head{margin-bottom:24px;max-width:760px;}
.sec-kicker{
  display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:800;letter-spacing:.08em;
  color:var(--brand-1);background:rgba(124,58,237,.09);padding:5px 13px;border-radius:999px;margin-bottom:13px;
}
.sec-title{font-size:clamp(21px,2.6vw,30px);font-weight:900;line-height:1.35;letter-spacing:-.02em;margin-bottom:11px;}
.sec-desc{font-size:14.6px;color:var(--ink-2);line-height:1.9;}

.g-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.g-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.g-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}
@media(max-width:1023px){
  .g-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .g-4{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media(max-width:640px){
  .g-2,.g-3,.g-4{grid-template-columns:minmax(0,1fr);gap:14px;}
}

/* ---------- 卡片 ---------- */
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:22px;
  box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(124,58,237,.28);}
.card h3{font-size:16px;font-weight:800;letter-spacing:-.01em;margin-bottom:8px;line-height:1.45;}
.card p{font-size:13.8px;color:var(--ink-2);line-height:1.8;}

.ico{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;font-size:16px;color:#fff;
  background:var(--grad);margin-bottom:15px;box-shadow:0 12px 24px -14px rgba(124,58,237,1);
}
.ico.cy{background:linear-gradient(135deg,#22d3ee,#7c3aed);}
.ico.wm{background:linear-gradient(135deg,#f59e0b,#ec4899);}
.ico.gr{background:linear-gradient(135deg,#10b981,#22d3ee);}
.ico.sm{width:34px;height:34px;border-radius:11px;font-size:13px;margin-bottom:0;flex-shrink:0;}

.badge{
  display:inline-flex;align-items:center;gap:5px;font-size:11.5px;font-weight:800;
  padding:3px 10px;border-radius:999px;background:var(--surface-2);color:var(--brand-1);
  border:1px solid rgba(124,58,237,.16);
}
.badge.gray{background:#f4f3f9;color:var(--ink-3);border-color:var(--border);}

/* ---------- 痛点卡 ---------- */
.pain-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:20px 20px 18px;
  transition:.22s;position:relative;overflow:hidden;
}
.pain-card:before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,#f43f5e,#ec4899);
  opacity:0;transition:.22s;
}
.pain-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(236,72,153,.3);}
.pain-card:hover:before{opacity:1;}
.pain-card h3{display:flex;align-items:center;gap:9px;font-size:15.5px;font-weight:800;margin-bottom:8px;}
.pain-card h3 i{color:#ec4899;font-size:14px;}
.pain-card p{font-size:13.6px;color:var(--ink-2);line-height:1.8;}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;counter-reset:st;}
@media(max-width:900px){.steps{grid-template-columns:minmax(0,1fr);}}
.step{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:24px 22px;position:relative;overflow:hidden;transition:.22s;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(124,58,237,.3);}
.step .num{
  font-size:13px;font-weight:900;letter-spacing:.1em;color:#fff;background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;
  margin-bottom:14px;box-shadow:0 12px 24px -14px rgba(124,58,237,1);
}
.step h3{font-size:16.5px;font-weight:800;margin-bottom:8px;}
.step p{font-size:13.8px;color:var(--ink-2);line-height:1.82;}

/* ---------- 场景演示 ---------- */
.scene{display:grid;grid-template-columns:1.15fr 1fr;gap:22px;align-items:stretch;}
@media(max-width:900px){.scene{grid-template-columns:minmax(0,1fr);}}
.scene-panel{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:26px 24px;box-shadow:var(--sh-1);
}
.scene-list li{display:flex;gap:13px;padding:14px 0;border-bottom:1px dashed var(--border);}
.scene-list li:last-child{border-bottom:none;padding-bottom:0;}
.scene-list li:first-child{padding-top:0;}
.scene-list h4{font-size:14.6px;font-weight:800;margin-bottom:4px;}
.scene-list p{font-size:13.4px;color:var(--ink-2);line-height:1.78;}
.scene-panel.dark{
  background:linear-gradient(160deg,#1b1430 0%,#2a1740 48%,#3b1440 100%);
  border-color:rgba(124,58,237,.35);color:#fff;box-shadow:var(--sh-3);
}
.scene-panel.dark h3{color:#fff;font-size:17px;font-weight:800;margin-bottom:6px;}
.scene-panel.dark .muted{color:rgba(255,255,255,.62);font-size:13.2px;line-height:1.8;}
.metric-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:20px;}
.metric-box{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-md);padding:14px;transition:.22s;
}
.metric-box:hover{background:rgba(255,255,255,.12);transform:translateY(-3px);}
.metric-box b{display:block;font-size:22px;font-weight:900;letter-spacing:-.02em;
  background:linear-gradient(135deg,#c4b5fd,#f9a8d4);-webkit-background-clip:text;background-clip:text;color:transparent;}
.metric-box span{display:block;font-size:12.4px;color:rgba(255,255,255,.7);margin-top:3px;}

/* ---------- 数据指标 ---------- */
.stats-band{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);padding:26px 24px;box-shadow:var(--sh-1);
}
@media(max-width:900px){.stats-band{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(max-width:520px){.stats-band{grid-template-columns:minmax(0,1fr);padding:20px 18px;}}
.stat-item{padding:4px 4px 4px 0;}
.stat-item b{
  display:block;font-size:clamp(24px,3.2vw,34px);font-weight:900;letter-spacing:-.035em;line-height:1.1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-item strong{display:block;font-size:14px;font-weight:800;margin:6px 0 5px;}
.stat-item span{display:block;font-size:12.8px;color:var(--ink-2);line-height:1.72;}

/* ---------- 证言 ---------- */
.quote{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:22px;transition:.22s;}
.quote:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(124,58,237,.28);}
.quote .mark{font-size:22px;color:rgba(124,58,237,.4);margin-bottom:10px;}
.quote p{font-size:14px;color:var(--ink-2);line-height:1.85;margin-bottom:16px;}
.quote .who{display:flex;align-items:center;gap:11px;border-top:1px dashed var(--border);padding-top:14px;}
.avatar{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:800;font-size:13px;background:var(--grad);flex-shrink:0;}
.quote .who b{display:block;font-size:13.6px;font-weight:800;}
.quote .who span{display:block;font-size:12.2px;color:var(--ink-3);}

/* ---------- 人群 ---------- */
.persona{
  display:flex;align-items:flex-start;gap:14px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-lg);padding:18px 18px;transition:.22s;
}
.persona:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(124,58,237,.28);}
.persona h3{font-size:15px;font-weight:800;margin-bottom:5px;}
.persona p{font-size:13.3px;color:var(--ink-2);line-height:1.76;}

/* ---------- 频道入口 ---------- */
.chan{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-lg);padding:24px 22px;transition:.24s;position:relative;overflow:hidden;height:100%;
}
.chan:before{content:"";position:absolute;inset:0;background:var(--grad-soft);opacity:0;transition:.24s;}
.chan:hover{transform:translateY(-5px);box-shadow:var(--sh-2);border-color:rgba(124,58,237,.35);}
.chan:hover:before{opacity:1;}
.chan > *{position:relative;z-index:1;}
.chan h3{font-size:17px;font-weight:800;margin:15px 0 8px;}
.chan p{font-size:13.6px;color:var(--ink-2);line-height:1.8;margin-bottom:18px;}
.chan .more{margin-top:auto;font-size:13.5px;font-weight:800;color:var(--brand-1);display:inline-flex;align-items:center;gap:7px;}
.chan:hover .more i{transform:translateX(4px);}
.chan .more i{transition:transform .22s;}

/* ---------- 资讯列表 ---------- */
.news{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);padding:8px 10px;box-shadow:var(--sh-1);}
.news-item{display:flex;gap:16px;align-items:flex-start;padding:18px 14px;border-bottom:1px solid var(--border);transition:.2s;border-radius:var(--r-md);}
.news-item:last-child{border-bottom:none;}
.news-item:hover{background:#faf9fe;}
.news-item .idx{font-size:12px;font-weight:900;color:var(--ink-3);width:26px;flex-shrink:0;padding-top:3px;letter-spacing:.05em;}
.news-item h4{font-size:15px;font-weight:800;margin-bottom:5px;line-height:1.5;}
.news-item p{font-size:13.3px;color:var(--ink-2);line-height:1.76;margin-bottom:8px;}
.news-item .tags{display:flex;flex-wrap:wrap;gap:7px;}

/* ---------- 对比 ---------- */
.cmp{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-1);}
.cmp-row{display:grid;grid-template-columns:1fr 1.25fr 1.35fr;border-bottom:1px solid var(--border);}
.cmp-row:last-child{border-bottom:none;}
.cmp-row > div{padding:16px 18px;font-size:13.6px;line-height:1.72;}
.cmp-row > div:first-child{font-weight:800;color:var(--ink);background:#fbfaff;}
.cmp-row > div:nth-child(2){color:var(--ink-3);}
.cmp-row > div:last-child{color:var(--brand-1);font-weight:700;background:rgba(124,58,237,.045);}
.cmp-head > div{font-size:12.5px;font-weight:900;letter-spacing:.06em;color:var(--ink-3) !important;background:#f7f5fd !important;text-transform:uppercase;}
.cmp-head > div:last-child{color:var(--brand-1) !important;background:rgba(124,58,237,.09) !important;}
@media(max-width:760px){
  .cmp-row{grid-template-columns:minmax(0,1fr);}
  .cmp-row > div{padding:11px 16px;border-bottom:1px dashed var(--border);}
  .cmp-row > div:last-child{border-bottom:none;}
  .cmp-row > div:first-child{background:#f7f5fd;}
}

/* ---------- 保障条 ---------- */
.guard{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}
@media(max-width:1023px){.guard{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(max-width:520px){.guard{grid-template-columns:minmax(0,1fr);}}
.guard-item{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:20px 18px;transition:.22s;
}
.guard-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(124,58,237,.28);}
.guard-item h3{display:flex;align-items:center;gap:9px;font-size:14.6px;font-weight:800;margin-bottom:8px;}
.guard-item h3 i{color:var(--brand-1);}
.guard-item p{font-size:13.2px;color:var(--ink-2);line-height:1.78;}

/* ---------- 转化表单 ---------- */
.join{
  border-radius:var(--r-xl);padding:34px 32px;border:1px solid rgba(124,58,237,.28);
  background:linear-gradient(140deg,#faf8ff 0%,#f3edff 46%,#fdeff7 100%);
  box-shadow:var(--sh-1);
}
@media(max-width:640px){.join{padding:24px 18px;}}
.join-grid{display:grid;grid-template-columns:1fr 1.35fr;gap:34px;align-items:start;}
@media(max-width:900px){.join-grid{grid-template-columns:minmax(0,1fr);gap:22px;}}
.join-form .f-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
@media(max-width:640px){.join-form .f-row{grid-template-columns:minmax(0,1fr);}}
.f-field{display:flex;flex-direction:column;gap:7px;margin-bottom:14px;}
.f-field > span{font-size:12.8px;font-weight:800;color:var(--ink-2);}
.f-field input,.f-field select,.f-field textarea{
  width:100%;padding:11px 14px;border-radius:var(--r-md);border:1px solid var(--border);
  background:#fff;font-size:13.8px;transition:.2s;resize:vertical;
}
.f-field input::placeholder,.f-field textarea::placeholder{color:#a9a5bd;}
.f-field input:focus,.f-field select:focus,.f-field textarea:focus{
  outline:none;border-color:rgba(124,58,237,.55);box-shadow:0 0 0 4px rgba(124,58,237,.12);
}
.f-tip{font-size:12.4px;color:var(--ink-3);margin-top:12px;line-height:1.7;}
.f-tip.ok{color:#0f9d58;font-weight:700;}
.join-list li{display:flex;gap:10px;font-size:13.8px;color:var(--ink-2);line-height:1.8;margin-bottom:11px;}
.join-list i{color:var(--brand-1);margin-top:5px;font-size:12px;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:26px;background:#15121f;color:rgba(255,255,255,.72);}
.footer-inner{max-width:var(--maxw);margin:0 auto;padding:48px 24px 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:30px;}
@media(max-width:900px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;}}
@media(max-width:520px){.footer-grid{grid-template-columns:minmax(0,1fr);}}
.footer-brand .brand{color:#fff;margin-bottom:12px;}
.footer-brand p{font-size:13.4px;line-height:1.85;color:rgba(255,255,255,.6);max-width:34em;}
.footer-col h4{font-size:12.5px;font-weight:900;letter-spacing:.14em;color:#fff;margin-bottom:14px;text-transform:uppercase;}
.footer-col a,.footer-col span{display:block;font-size:13.4px;color:rgba(255,255,255,.65);padding:5px 0;transition:.18s;}
.footer-col a:hover{color:#c4b5fd;transform:translateX(3px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);margin-top:34px;padding-top:20px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.6px;color:rgba(255,255,255,.5);
}

/* roulang page: category1 */
:root{
 --brand-1:#7c3aed;
 --brand-2:#c026d3;
 --brand-3:#ec4899;
 --cyan:#22d3ee;
 --ink:#14121f;
 --ink-2:#4a4660;
 --ink-3:#807c96;
 --bg:#f6f5fb;
 --surface:#ffffff;
 --surface-2:#f2eefc;
 --border:#e7e4f3;
 --r-xl:28px;
 --r-lg:20px;
 --r-md:14px;
 --r-sm:10px;
 --sh-1:0 1px 2px rgba(20,18,31,.05), 0 4px 14px rgba(20,18,31,.05);
 --sh-2:0 16px 38px -18px rgba(76,29,149,.30);
 --sh-3:0 34px 74px -32px rgba(76,29,149,.45);
 --grad:linear-gradient(135deg,#7c3aed 0%,#c026d3 54%,#ec4899 100%);
 --grad-soft:linear-gradient(135deg,rgba(124,58,237,.10),rgba(236,72,153,.10));
 --maxw:1280px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:96px;}
body{
 margin:0;background:var(--bg);color:var(--ink);
 font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
 font-size:15px;line-height:1.7;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.24;letter-spacing:-.01em;font-weight:800;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
:focus-visible{outline:3px solid rgba(124,58,237,.42);outline-offset:2px;border-radius:6px;}

/* ---------- 顶栏 ---------- */
.topbar{
 position:sticky;top:0;z-index:70;background:rgba(255,255,255,.88);
 -webkit-backdrop-filter:saturate(180%) blur(14px);backdrop-filter:saturate(180%) blur(14px);
 border-bottom:1px solid var(--border);
}
.topbar-inner{
 max-width:var(--maxw);margin:0 auto;padding:10px 24px;
 display:flex;align-items:center;gap:16px;min-height:64px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:.01em;flex-shrink:0;}
.brand-mark{
 width:34px;height:34px;border-radius:11px;background:var(--grad);color:#fff;
 display:grid;place-items:center;font-size:16px;font-weight:800;
 box-shadow:0 10px 20px -10px rgba(124,58,237,.95);transition:transform .25s ease;
}
.brand:hover .brand-mark{transform:rotate(-6deg);}
.search-wrap{position:relative;flex:1;max-width:420px;display:block;}
.search-wrap i{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:var(--ink-3);font-size:13px;}
.search-input{
 width:100%;padding:9px 16px 9px 38px;border-radius:999px;
 border:1px solid var(--border);background:#faf9fe;font-size:13.5px;transition:.2s;
}
.search-input::placeholder{color:#a9a5bd;}
.search-input:focus{outline:none;border-color:rgba(124,58,237,.5);background:#fff;box-shadow:0 0 0 4px rgba(124,58,237,.12);}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.chip-ver{
 display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;color:var(--brand-1);
 background:rgba(124,58,237,.09);border:1px solid rgba(124,58,237,.16);
 padding:5px 11px;border-radius:999px;white-space:nowrap;
}
.lang-switch{display:flex;align-items:center;gap:2px;background:#f3f1fb;border-radius:999px;padding:3px;}
.lang-switch a{padding:5px 12px;font-size:12.5px;color:var(--ink-3);font-weight:600;border-radius:999px;transition:.18s;}
.lang-switch a.active{background:var(--grad);color:#fff;}
.lang-switch a:not(.active):hover{background:#fff;color:var(--brand-1);}
.nav-toggle{
 display:none;place-items:center;width:38px;height:38px;border-radius:12px;
 border:1px solid var(--border);background:#fff;cursor:pointer;transition:.2s;
}
.nav-toggle:hover{border-color:rgba(124,58,237,.45);color:var(--brand-1);}
.mobile-nav{display:none;border-top:1px solid var(--border);background:#fff;padding:12px 24px 16px;}
.mobile-nav a{
 display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:var(--r-md);
 font-size:14.5px;font-weight:600;color:var(--ink-2);transition:.18s;
}
.mobile-nav a:hover,.mobile-nav a.active{background:var(--surface-2);color:var(--brand-1);}

/* ---------- 页壳与目录侧栏 ---------- */
.page-shell{display:grid;grid-template-columns:252px minmax(0,1fr);gap:34px;padding:32px 0 64px;}
.doc-side{align-self:start;position:sticky;top:88px;display:flex;flex-direction:column;gap:16px;}
.doc-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:16px 14px;box-shadow:var(--sh-1);}
.doc-title{font-size:11px;letter-spacing:.16em;color:var(--ink-3);font-weight:800;margin:0 0 10px 10px;text-transform:uppercase;}
.doc-nav{display:flex;flex-direction:column;gap:2px;}
.doc-nav a{
 display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:var(--r-sm);
 font-size:13.5px;font-weight:600;color:var(--ink-2);transition:.18s;border:1px solid transparent;
}
.doc-nav a .idx{font-size:10.5px;font-weight:800;color:var(--ink-3);letter-spacing:.06em;}
.doc-nav a:hover{background:var(--surface-2);color:var(--brand-1);}
.doc-nav a.active{background:var(--grad-soft);color:var(--brand-1);border-color:rgba(124,58,237,.16);}
.doc-nav a.active .idx{color:var(--brand-2);}
.doc-note p{font-size:13px;color:var(--ink-2);line-height:1.65;}
.doc-note .num{font-size:26px;font-weight:900;letter-spacing:-.03em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;display:block;line-height:1.2;}
.doc-note .lbl{font-size:12px;color:var(--ink-3);font-weight:700;}
.side-rows{display:flex;flex-direction:column;gap:10px;margin-top:10px;}
.side-row{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--ink-2);font-weight:600;}
.side-row b{color:var(--brand-1);font-weight:800;}

/* ---------- 按钮 ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:11px 22px;border-radius:999px;font-size:14px;font-weight:700;
 border:1px solid transparent;cursor:pointer;white-space:nowrap;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease,background .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 16px 32px -16px rgba(124,58,237,.95);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 40px -16px rgba(124,58,237,1);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--border);}
.btn-ghost:hover{border-color:rgba(124,58,237,.5);color:var(--brand-1);transform:translateY(-2px);box-shadow:var(--sh-1);}
.btn-light{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.28);}
.btn-light:hover{background:rgba(255,255,255,.24);transform:translateY(-2px);}
.btn-sm{padding:8px 16px;font-size:13px;}

/* ---------- 首屏 ---------- */
.hero-card{
 position:relative;overflow:hidden;border-radius:var(--r-xl);
 background:linear-gradient(140deg,#fbf9ff 0%,#f3eeff 44%,#fdeef7 100%);
 border:1px solid var(--border);padding:34px 32px;box-shadow:var(--sh-1);
}
.hero-card:before{
 content:"";position:absolute;right:-120px;top:-160px;width:440px;height:440px;border-radius:50%;
 background:radial-gradient(circle,rgba(124,58,237,.20),transparent 68%);
}
.hero-card:after{
 content:"";position:absolute;left:-60px;bottom:-190px;width:340px;height:340px;border-radius:50%;
 background:radial-gradient(circle,rgba(34,211,238,.16),transparent 70%);
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:5fr 7fr;gap:30px;align-items:center;}
.hero-tag{
 display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;color:var(--brand-1);
 background:rgba(255,255,255,.92);border:1px solid rgba(124,58,237,.22);
 padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.hero-tag .dot{width:6px;height:6px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 4px rgba(34,197,94,.18);}
.hero-title{font-size:clamp(25px,3.3vw,38px);letter-spacing:-.025em;margin-bottom:14px;}
.hero-title em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{font-size:15px;color:var(--ink-2);max-width:540px;margin-bottom:22px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px;}
.kpi-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;max-width:560px;}
.kpi{background:rgba(255,255,255,.86);border:1px solid var(--border);border-radius:var(--r-md);padding:11px 13px;box-shadow:var(--sh-1);}
.kpi b{display:block;font-size:20px;font-weight:900;letter-spacing:-.03em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.25;}
.kpi span{font-size:12px;color:var(--ink-3);font-weight:700;}
.hero-visual{transform:rotate(1.6deg) translateY(-6px);}

/* ---------- 深色工具面板（首屏右侧大图） ---------- */
.tool-panel{
 background:linear-gradient(150deg,#1b1730 0%,#2a1f4d 52%,#401f4d 100%);
 border:1px solid rgba(255,255,255,.09);border-radius:var(--r-xl);
 padding:20px;color:#fff;box-shadow:var(--sh-3);
}
.panel-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;}
.panel-dots{display:flex;gap:6px;}
.panel-dots i{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.22);display:block;}
.panel-dots i:nth-child(1){background:#ec4899;}
.panel-dots i:nth-child(2){background:#c026d3;}
.panel-dots i:nth-child(3){background:#22d3ee;}
.panel-title{font-size:12.5px;font-weight:700;color:rgba(255,255,255,.72);letter-spacing:.02em;}
.panel-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-bottom:16px;}
.panel-metric{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.10);border-radius:var(--r-md);padding:11px 13px;}
.panel-metric b{display:block;font-size:21px;font-weight:900;letter-spacing:-.03em;color:#fff;line-height:1.2;}
.panel-metric span{font-size:11.5px;color:rgba(255,255,255,.6);font-weight:600;}
.bars{display:flex;align-items:flex-end;gap:8px;height:104px;padding:0 2px;margin-bottom:14px;}
.bars i{
 flex:1;border-radius:7px 7px 4px 4px;display:block;
 background:linear-gradient(180deg,#f472b6 0%,#c026d3 55%,#7c3aed 100%);
 opacity:.92;transition:opacity .2s ease,transform .2s ease;
}
.bars i:hover{opacity:1;transform:translateY(-3px);}
.panel-foot{display:flex;flex-wrap:wrap;gap:8px;}
.pill{
 font-size:11.5px;font-weight:700;padding:5px 11px;border-radius:999px;
 background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.86);
}

/* ---------- 通用板块 ---------- */
.section{margin-top:56px;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;}
.eyebrow{
 display:inline-flex;align-items:center;gap:7px;font-size:11.5px;font-weight:800;letter-spacing:.14em;
 text-transform:uppercase;color:var(--brand-2);margin-bottom:9px;
}
.eyebrow:before{content:"";width:16px;height:2px;border-radius:2px;background:var(--grad);}
.sec-title{font-size:clamp(20px,2.4vw,27px);letter-spacing:-.02em;}
.sec-desc{font-size:14px;color:var(--ink-2);max-width:640px;margin-top:8px;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}

.card{
 background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
 padding:20px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(124,58,237,.28);}
.card-icon{
 width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
 background:var(--grad-soft);color:var(--brand-1);font-size:16px;margin-bottom:13px;
 border:1px solid rgba(124,58,237,.14);
}
.card-title{font-size:16px;font-weight:800;margin-bottom:8px;}
.card-text{font-size:13.5px;color:var(--ink-2);line-height:1.72;}
.tag{
 display:inline-flex;align-items:center;gap:6px;font-size:11.5px;font-weight:700;
 padding:4px 10px;border-radius:999px;background:var(--surface-2);color:var(--brand-1);
 border:1px solid rgba(124,58,237,.15);
}
.tag-cyan{background:rgba(34,211,238,.12);color:#0e7490;border-color:rgba(34,211,238,.28);}
.tag-pink{background:rgba(236,72,153,.10);color:#be185d;border-color:rgba(236,72,153,.22);}

/* 痛点卡 */
.pain-card{position:relative;padding-left:56px;}
.pain-card .num{
 position:absolute;left:20px;top:20px;width:26px;height:26px;border-radius:9px;
 display:grid;place-items:center;font-size:12px;font-weight:800;color:#fff;background:var(--grad);
}
.pain-card h3{font-size:15.5px;font-weight:800;margin-bottom:7px;}
.pain-card p{font-size:13.5px;color:var(--ink-2);}

/* 步骤 */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}
.flow-step{
 background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
 padding:20px 18px;box-shadow:var(--sh-1);position:relative;overflow:hidden;
 transition:transform .22s ease,box-shadow .22s ease;
}
.flow-step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.flow-step:before{
 content:"";position:absolute;inset:0 auto auto 0;height:3px;width:100%;background:var(--grad);opacity:.85;
}
.flow-num{font-size:12px;font-weight:900;letter-spacing:.16em;color:var(--brand-2);margin-bottom:10px;display:block;}
.flow-step h3{font-size:15.5px;font-weight:800;margin-bottom:8px;}
.flow-step p{font-size:13.5px;color:var(--ink-2);}
.flow-step .meta{margin-top:12px;font-size:12px;color:var(--ink-3);font-weight:700;}

/* 深色数据带 */
.band{
 margin-top:56px;border-radius:var(--r-xl);padding:34px 32px;color:#fff;
 background:linear-gradient(135deg,#191534 0%,#2c1f52 48%,#4a1f52 100%);
 box-shadow:var(--sh-3);position:relative;overflow:hidden;
}
.band:before{
 content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
 background:radial-gradient(circle,rgba(192,38,211,.34),transparent 68%);
}
.band-inner{position:relative;z-index:1;}
.band .sec-title{color:#fff;}
.band .sec-desc{color:rgba(255,255,255,.72);}
.band .eyebrow{color:#f0abfc;}
.band .eyebrow:before{background:linear-gradient(90deg,#f0abfc,#22d3ee);}
.band-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:22px;}
.band-stat{
 background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
 border-radius:var(--r-lg);padding:18px;
}
.band-stat b{display:block;font-size:30px;font-weight:900;letter-spacing:-.035em;line-height:1.15;color:#fff;}
.band-stat b span{font-size:15px;font-weight:800;color:#f0abfc;margin-left:2px;}
.band-stat p{font-size:12.5px;color:rgba(255,255,255,.66);margin-top:6px;font-weight:600;}

/* 证言 */
.voice-card{display:flex;flex-direction:column;gap:14px;}
.voice-quote{font-size:14px;color:var(--ink-2);line-height:1.78;}
.voice-quote:before{
 content:"“";font-size:34px;line-height:0;color:rgba(124,58,237,.3);
 display:block;margin-bottom:6px;font-family:Georgia,serif;
}
.voice-who{display:flex;align-items:center;gap:11px;border-top:1px dashed var(--border);padding-top:14px;}
.avatar{
 width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
 font-size:14px;font-weight:800;color:#fff;background:var(--grad);flex-shrink:0;
}
.voice-who b{display:block;font-size:13.5px;font-weight:800;}
.voice-who span{font-size:12px;color:var(--ink-3);font-weight:600;}

/* 适用人群 */
.audience-card{display:flex;gap:13px;align-items:flex-start;}
.audience-card .card-icon{margin-bottom:0;flex-shrink:0;}
.audience-card h3{font-size:15px;font-weight:800;margin-bottom:6px;}
.audience-card p{font-size:13.5px;color:var(--ink-2);}

/* 资讯列表 */
.news-list{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;}
.news-item{
 display:flex;align-items:flex-start;gap:16px;padding:17px 20px;border-bottom:1px solid var(--border);
 transition:background .18s ease;
}
.news-item:last-child{border-bottom:0;}
.news-item:hover{background:#faf9fe;}
.news-item .date{
 font-size:12px;font-weight:800;color:var(--brand-1);background:var(--surface-2);
 border-radius:9px;padding:6px 10px;flex-shrink:0;line-height:1.3;text-align:center;
}
.news-item h3{font-size:14.5px;font-weight:800;margin-bottom:5px;}
.news-item p{font-size:13px;color:var(--ink-2);}

/* 指标行 */
.spec-wrap{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;}
.spec-row{
 display:grid;grid-template-columns:200px minmax(0,1fr) 120px;gap:18px;align-items:center;
 padding:15px 20px;border-bottom:1px solid var(--border);font-size:13.5px;
}
.spec-row:last-child{border-bottom:0;}
.spec-row.head{background:#faf9fe;font-size:12px;font-weight:800;letter-spacing:.1em;color:var(--ink-3);text-transform:uppercase;}
.spec-row .k{font-weight:800;color:var(--ink);}
.spec-row .d{color:var(--ink-2);}
.spec-row .v{
 justify-self:end;font-weight:800;color:var(--brand-1);
 background:var(--grad-soft);border-radius:999px;padding:4px 12px;font-size:12.5px;white-space:nowrap;
}

/* 收口 CTA */
.cta-box{
 margin-top:56px;border-radius:var(--r-xl);padding:34px 32px;
 background:linear-gradient(135deg,#fbf7ff 0%,#f4ecff 46%,#feeff7 100%);
 border:1px solid var(--border);box-shadow:var(--sh-1);
 display:grid;grid-template-columns:1.15fr .85fr;gap:30px;align-items:center;
}
.cta-box h2{font-size:clamp(20px,2.4vw,27px);letter-spacing:-.02em;margin-bottom:12px;}
.cta-box p{font-size:14px;color:var(--ink-2);max-width:560px;}
.cta-points{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px;}
.cta-form-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-2);}
.cta-form-card h3{font-size:15.5px;font-weight:800;margin-bottom:6px;}
.cta-form-card .hint{font-size:12.5px;color:var(--ink-3);margin-bottom:16px;}
.cta-form{display:flex;flex-direction:column;gap:12px;}
.field{position:relative;}
.field i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--ink-3);font-size:13px;}
.field input{
 width:100%;padding:12px 14px 12px 38px;border-radius:var(--r-md);border:1px solid var(--border);
 background:#faf9fe;font-size:14px;transition:.2s;
}
.field input::placeholder{color:#a9a5bd;}
.field input:focus{outline:none;border-color:rgba(124,58,237,.5);background:#fff;box-shadow:0 0 0 4px rgba(124,58,237,.12);}
.form-tip{font-size:12px;color:var(--ink-3);margin-top:2px;}
.form-msg{font-size:12.5px;font-weight:700;color:#16a34a;display:none;}
.form-msg.show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:64px;background:#14121f;color:rgba(255,255,255,.72);padding:48px 0 26px;}
.footer-inner{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand .brand{color:#fff;margin-bottom:14px;}
.footer-brand p{font-size:13px;line-height:1.78;color:rgba(255,255,255,.58);max-width:340px;}
.footer-col h4{font-size:13px;font-weight:800;color:#fff;margin-bottom:14px;letter-spacing:.02em;}
.footer-col a,.footer-col span{display:block;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:9px;transition:color .18s ease;}
.footer-col a:hover{color:#f0abfc;}
.footer-bottom{
 margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
 display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:12.5px;color:rgba(255,255,255,.45);
}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
 .page-shell{grid-template-columns:222px minmax(0,1fr);gap:24px;}
 .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
 .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
 .band-stats{grid-template-columns:repeat(2,minmax(0,1fr));}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:1024px){
 .search-wrap{display:none;}
 .chip-ver{display:none;}
 .nav-toggle{display:grid;}
 .mobile-nav.open{display:block;}
 .page-shell{grid-template-columns:1fr;gap:20px;padding-top:20px;}
 .doc-side{position:static;top:auto;}
 .doc-side .doc-card:first-child{padding:12px 12px 10px;}
 .doc-nav{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px;scrollbar-width:thin;}
 .doc-nav a{white-space:nowrap;border:1px solid var(--border);background:#fff;}
 .doc-note{display:none;}
 .hero-grid{grid-template-columns:1fr;gap:26px;}
 .hero-visual{transform:none;}
 .cta-box{grid-template-columns:1fr;gap:22px;}
}
@media (max-width:768px){
 .container{padding:0 18px;}
 .topbar-inner{padding:10px 18px;gap:10px;}
 .brand{font-size:15.5px;}
 .brand-mark{width:31px;height:31px;font-size:14px;}
 .lang-switch{display:none;}
 .hero-card{padding:24px 20px;border-radius:var(--r-lg);}
 .hero-actions .btn{flex:1 1 auto;}
 .kpi-row{grid-template-columns:1fr;max-width:none;}
 .grid-2,.grid-3,.grid-4,.flow,.band-stats{grid-template-columns:1fr;}
 .section,.band,.cta-box{margin-top:42px;}
 .band{padding:26px 20px;border-radius:var(--r-lg);}
 .band-stat b{font-size:25px;}
 .spec-row{grid-template-columns:1fr;gap:6px;padding:14px 18px;}
 .spec-row.head{display:none;}
 .spec-row .v{justify-self:start;}
 .card,.flow-step{padding:18px;}
 .pain-card{padding-left:52px;}
 .cta-box{padding:24px 20px;border-radius:var(--r-lg);}
 .footer-grid{grid-template-columns:1fr;gap:22px;}
 .site-footer{padding:36px 0 22px;}
}
@media (max-width:520px){
 .hero-title{font-size:22.5px;}
 .sec-title{font-size:19px;}
 .hero-actions{flex-direction:column;align-items:stretch;}
 .hero-actions .btn{width:100%;}
 .btn{padding:10px 18px;font-size:13.5px;}
 .panel-metrics{grid-template-columns:1fr;}
 .news-item{flex-direction:column;gap:10px;}
}

/* roulang page: category2 */
:root{
  --brand-1:#7c3aed;
  --brand-2:#c026d3;
  --brand-3:#ec4899;
  --cyan:#22d3ee;
  --ink:#14121f;
  --ink-2:#4a4660;
  --ink-3:#807c96;
  --bg:#f6f5fb;
  --surface:#ffffff;
  --surface-2:#f2eefc;
  --border:#e7e4f3;
  --r-xl:28px;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(20,18,31,.05), 0 4px 14px rgba(20,18,31,.05);
  --sh-2:0 16px 38px -18px rgba(76,29,149,.30);
  --sh-3:0 34px 74px -32px rgba(76,29,149,.45);
  --grad:linear-gradient(135deg,#7c3aed 0%,#c026d3 54%,#ec4899 100%);
  --grad-soft:linear-gradient(135deg,rgba(124,58,237,.10),rgba(236,72,153,.10));
  --maxw:1280px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:92px;}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  font-size:15px;line-height:1.7;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
::selection{background:rgba(124,58,237,.22);}
:focus-visible{outline:3px solid rgba(124,58,237,.45);outline-offset:2px;border-radius:8px;}
h1,h2,h3,h4,p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}

/* ---------- 顶栏 ---------- */
.topbar{
  position:sticky;top:0;z-index:70;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--border);
}
.topbar-inner{
  max-width:var(--maxw);margin:0 auto;padding:10px 24px;
  display:flex;align-items:center;gap:16px;min-height:64px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:.01em;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:16px;font-weight:800;
  box-shadow:0 10px 20px -10px rgba(124,58,237,.95);transition:transform .25s ease;
}
.brand:hover .brand-mark{transform:rotate(-6deg);}
.search-wrap{position:relative;flex:1;max-width:420px;}
.search-wrap i{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:var(--ink-3);font-size:13px;}
.search-input{
  width:100%;padding:9px 16px 9px 38px;border-radius:999px;
  border:1px solid var(--border);background:#faf9fe;font-size:13.5px;transition:.2s;
}
.search-input::placeholder{color:#a9a5bd;}
.search-input:focus{outline:none;border-color:rgba(124,58,237,.5);background:#fff;box-shadow:0 0 0 4px rgba(124,58,237,.12);}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.chip-ver{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;color:var(--brand-1);
  background:rgba(124,58,237,.09);border:1px solid rgba(124,58,237,.16);
  padding:5px 11px;border-radius:999px;
}
.lang-switch{display:flex;background:var(--surface-2);border-radius:999px;padding:3px;}
.lang-switch a{padding:5px 12px;font-size:12.5px;color:var(--ink-3);font-weight:600;transition:.18s;border-radius:999px;}
.lang-switch a.active{background:var(--grad);color:#fff;}
.lang-switch a:not(.active):hover{color:var(--brand-1);}
.nav-toggle{
  display:grid;place-items:center;width:38px;height:38px;border-radius:12px;
  border:1px solid var(--border);background:#fff;cursor:pointer;transition:.2s;
}
.nav-toggle:hover{border-color:rgba(124,58,237,.45);color:var(--brand-1);}
.mobile-nav{display:none;border-top:1px solid var(--border);background:#fff;padding:12px 24px 16px;}
.mobile-nav.open{display:block;}
.mobile-nav a{
  display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:var(--r-md);
  font-size:14.5px;font-weight:600;color:var(--ink-2);transition:.18s;
}
.mobile-nav a:hover,.mobile-nav a.active{background:var(--surface-2);color:var(--brand-1);}
.mobile-nav a i{width:18px;text-align:center;color:var(--brand-1);}

/* ---------- 布局 ---------- */
.page-main{max-width:var(--maxw);margin:0 auto;padding:26px 24px 10px;}
.crumb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--ink-3);font-weight:600;margin-bottom:18px;}
.crumb a:hover{color:var(--brand-1);}
.crumb i{font-size:9px;}
.layout{display:grid;grid-template-columns:252px minmax(0,1fr);gap:32px;align-items:start;}

/* ---------- 侧栏 ---------- */
.sidebar{position:sticky;top:88px;display:flex;flex-direction:column;gap:16px;}
.side-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:16px 14px;box-shadow:var(--sh-1);}
.side-head{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  font-size:11px;letter-spacing:.16em;color:var(--ink-3);font-weight:800;
  margin:0 0 10px 10px;text-transform:uppercase;
}
.toc a{
  display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:var(--r-sm);
  font-size:13.5px;font-weight:600;color:var(--ink-2);
  border-left:2px solid transparent;transition:.18s;
}
.toc a i{font-size:12px;color:var(--ink-3);transition:.18s;}
.toc a:hover{background:var(--surface-2);color:var(--brand-1);}
.toc a:hover i{color:var(--brand-1);}
.toc a.active{background:var(--grad-soft);color:var(--brand-1);border-left-color:var(--brand-1);}
.toc a.active i{color:var(--brand-1);}
.side-split{height:1px;background:var(--border);margin:12px 8px;}
.side-stat-row{display:flex;align-items:baseline;justify-content:space-between;gap:10px;padding:7px 10px;border-radius:var(--r-sm);transition:.18s;}
.side-stat-row:hover{background:var(--surface-2);}
.side-stat-row b{font-size:16px;font-weight:900;letter-spacing:-.02em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.side-stat-row span{font-size:12.5px;color:var(--ink-3);font-weight:600;}
.side-status{display:flex;align-items:center;gap:9px;padding:8px 10px;border-radius:var(--r-sm);background:#f4fbf6;border:1px solid #d9f0e0;}
.side-status .dot{width:7px;height:7px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 4px rgba(34,197,94,.16);}
.side-status span{font-size:12.8px;font-weight:700;color:#166534;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;font-size:14px;font-weight:700;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease,background .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 16px 32px -16px rgba(124,58,237,.95);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 40px -16px rgba(124,58,237,1);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--border);}
.btn-ghost:hover{border-color:rgba(124,58,237,.5);color:var(--brand-1);transform:translateY(-2px);box-shadow:var(--sh-1);}
.btn-dark{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.28);}
.btn-dark:hover{background:rgba(255,255,255,.2);transform:translateY(-2px);}
.btn-sm{padding:8px 16px;font-size:13px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:linear-gradient(140deg,#fbf9ff 0%,#f3eeff 44%,#fdeef7 100%);
  border:1px solid var(--border);padding:38px 36px 34px;box-shadow:var(--sh-1);
}
.hero:before{
  content:"";position:absolute;right:-120px;top:-160px;width:440px;height:440px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,58,237,.22),transparent 68%);
}
.hero:after{
  content:"";position:absolute;right:80px;bottom:-190px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(236,72,153,.18),transparent 70%);
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.04fr) minmax(0,.96fr);gap:36px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;color:var(--brand-1);
  background:rgba(255,255,255,.9);border:1px solid rgba(124,58,237,.22);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.hero-tag .dot{width:6px;height:6px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 4px rgba(34,197,94,.18);}
.hero h1{font-size:clamp(25px,3.3vw,38px);line-height:1.26;font-weight:900;letter-spacing:-.02em;margin-bottom:14px;}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-lead{font-size:14.8px;color:var(--ink-2);max-width:560px;margin-bottom:20px;}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:18px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:8px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12.2px;font-weight:700;
  color:var(--ink-2);background:#fff;border:1px solid var(--border);
  padding:5px 12px;border-radius:999px;box-shadow:var(--sh-1);
}
.badge i{color:var(--brand-1);font-size:11px;}
.badge-strong{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 12px 24px -14px rgba(124,58,237,.9);}
.badge-strong i{color:#fff;}

/* ---------- 代码卡 ---------- */
.code-card{
  background:#14121f;border-radius:var(--r-lg);border:1px solid rgba(255,255,255,.09);
  box-shadow:var(--sh-3);overflow:hidden;
}
.code-bar{display:flex;align-items:center;gap:8px;padding:11px 16px;border-bottom:1px solid rgba(255,255,255,.08);}
.code-dot{width:9px;height:9px;border-radius:50%;}
.code-name{margin-left:8px;font-size:12px;font-weight:700;color:#8f8ba6;letter-spacing:.04em;}
.code-body{
  padding:16px 18px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  font-size:12.5px;line-height:1.9;color:#d6d2e8;overflow-x:auto;
}
.code-body .ln{color:#565270;display:inline-block;width:20px;}
.code-body .k{color:#c4b5fd;}
.code-body .s{color:#7dd3fc;}
.code-body .n{color:#f9a8d4;}
.code-body .c{color:#6b6880;}
.code-foot{
  display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;
  padding:12px 18px;border-top:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.03);
  font-size:12.3px;color:#8f8ba6;font-weight:600;
}
.code-foot .ok{color:#4ade80;font-weight:700;}

/* ---------- 板块通用 ---------- */
.section{margin-top:54px;}
.sec-head{margin-bottom:24px;max-width:820px;}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:11.5px;font-weight:800;
  letter-spacing:.16em;color:var(--brand-1);text-transform:uppercase;margin-bottom:10px;
}
.sec-kicker:before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad);}
.sec-title{font-size:clamp(20px,2.35vw,27px);font-weight:900;letter-spacing:-.015em;line-height:1.35;}
.sec-sub{margin-top:10px;color:var(--ink-2);font-size:14.4px;}

/* ---------- 痛点 ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.pain-card{
  position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:22px 22px 22px 24px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.pain-card:before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:3px;background:var(--grad);opacity:.75;}
.pain-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(124,58,237,.28);}
.pain-card h3{font-size:16px;font-weight:800;letter-spacing:-.01em;margin-bottom:8px;display:flex;align-items:center;gap:9px;}
.pain-card h3 i{color:var(--brand-3);font-size:13px;}
.pain-card p{font-size:13.9px;color:var(--ink-2);}

/* ---------- 引擎能力 ---------- */
.engine-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;}
.engine-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease;
}
.engine-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.engine-icon{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:var(--grad-soft);color:var(--brand-1);font-size:16px;margin-bottom:14px;
  border:1px solid rgba(124,58,237,.16);
}
.engine-card h3{font-size:15.6px;font-weight:800;margin-bottom:7px;}
.engine-card p{font-size:13.7px;color:var(--ink-2);}
.engine-card .tagline{
  display:inline-block;margin-top:12px;font-size:11.6px;font-weight:800;letter-spacing:.08em;
  color:var(--brand-2);background:rgba(192,38,211,.09);border-radius:999px;padding:4px 10px;
}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;position:relative;}
.step{
  position:relative;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-lg);padding:24px 20px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.step-num{
  width:34px;height:34px;border-radius:11px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-weight:900;font-size:14px;margin-bottom:14px;
  box-shadow:0 12px 22px -12px rgba(124,58,237,.95);
}
.step h3{font-size:15.4px;font-weight:800;margin-bottom:7px;}
.step p{font-size:13.6px;color:var(--ink-2);}
.step-meta{margin-top:12px;font-size:12px;font-weight:700;color:var(--ink-3);display:flex;align-items:center;gap:6px;}
.step-meta i{color:var(--cyan);}

/* ---------- 成果数据 ---------- */
.stats-band{
  background:var(--grad);border-radius:var(--r-xl);padding:32px;box-shadow:var(--sh-3);
  position:relative;overflow:hidden;
}
.stats-band:before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 88% 12%,rgba(255,255,255,.26),transparent 55%);
}
.stats-head{position:relative;z-index:1;display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:22px;}
.stats-head h2{color:#fff;font-size:clamp(19px,2.2vw,25px);font-weight:900;letter-spacing:-.015em;}
.stats-head p{color:rgba(255,255,255,.86);font-size:13.6px;margin-top:8px;max-width:620px;}
.stats-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;}
.stat-card{
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.26);
  border-radius:var(--r-lg);padding:18px;color:#fff;backdrop-filter:blur(6px);
  transition:background .2s ease,transform .2s ease;
}
.stat-card:hover{background:rgba(255,255,255,.22);transform:translateY(-3px);}
.stat-num{font-size:26px;font-weight:900;letter-spacing:-.03em;line-height:1.1;}
.stat-num small{font-size:13px;font-weight:800;margin-left:2px;}
.stat-label{font-size:12.8px;font-weight:700;color:rgba(255,255,255,.9);margin-top:6px;}

/* ---------- 证言 ---------- */
.voice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;}
.voice-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:14px;
  transition:transform .22s ease,box-shadow .22s ease;
}
.voice-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.voice-quote{font-size:14.2px;color:var(--ink);line-height:1.78;}
.voice-quote:before{content:"“";color:var(--brand-2);font-size:22px;font-weight:900;margin-right:2px;}
.voice-who{display:flex;align-items:center;gap:11px;padding-top:14px;border-top:1px dashed var(--border);margin-top:auto;}
.avatar{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:var(--grad);color:#fff;font-weight:900;font-size:14px;flex-shrink:0;
}
.voice-who b{display:block;font-size:13.8px;font-weight:800;}
.voice-who span{display:block;font-size:12.2px;color:var(--ink-3);font-weight:600;}

/* ---------- 适用人群 ---------- */
.who-wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:22px;align-items:center;}
.who-list{display:flex;flex-wrap:wrap;gap:10px;}
.who-chip{
  display:inline-flex;align-items:center;gap:8px;font-size:13.4px;font-weight:700;color:var(--ink-2);
  background:var(--surface);border:1px solid var(--border);border-radius:999px;
  padding:9px 16px;box-shadow:var(--sh-1);transition:.2s;
}
.who-chip i{color:var(--brand-1);font-size:12px;}
.who-chip:hover{border-color:rgba(124,58,237,.5);color:var(--brand-1);transform:translateY(-2px);}
.who-note{
  background:var(--surface-2);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
}
.who-note h3{font-size:16px;font-weight:800;margin-bottom:10px;}
.who-note p{font-size:13.8px;color:var(--ink-2);}
.who-note ul{margin-top:14px;display:flex;flex-direction:column;gap:9px;}
.who-note li{display:flex;gap:10px;font-size:13.6px;color:var(--ink-2);}
.who-note li i{color:var(--brand-1);margin-top:4px;font-size:12px;}

/* ---------- 资讯 ---------- */
.news-list{border:1px solid var(--border);border-radius:var(--r-lg);background:var(--surface);overflow:hidden;box-shadow:var(--sh-1);}
.news-item{
  display:flex;align-items:center;gap:18px;padding:18px 22px;
  border-bottom:1px solid var(--border);transition:background .18s ease;
}
.news-item:last-child{border-bottom:none;}
.news-item:hover{background:var(--surface-2);}
.news-date{font-size:12.4px;font-weight:800;color:var(--ink-3);white-space:nowrap;min-width:64px;}
.news-body{flex:1;min-width:0;}
.news-body b{display:block;font-size:14.6px;font-weight:800;letter-spacing:-.005em;}
.news-body span{display:block;font-size:13.2px;color:var(--ink-2);margin-top:3px;}
.news-item i{color:var(--brand-1);font-size:12px;transition:transform .2s ease;}
.news-item:hover i{transform:translateX(4px);}

/* ---------- 指标 ---------- */
.metric-board{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);
}
.metric-row{display:grid;grid-template-columns:150px minmax(0,1fr) 74px;gap:16px;align-items:center;padding:13px 0;border-bottom:1px dashed var(--border);}
.metric-row:last-child{border-bottom:none;padding-bottom:0;}
.metric-row:first-child{padding-top:0;}
.metric-name{font-size:13.6px;font-weight:800;color:var(--ink-2);}
.metric-track{height:9px;border-radius:999px;background:var(--surface-2);overflow:hidden;}
.metric-fill{height:100%;border-radius:999px;background:var(--grad);transition:width .8s ease;}
.metric-val{font-size:14.4px;font-weight:900;text-align:right;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.metric-foot{margin-top:18px;display:flex;flex-wrap:wrap;gap:10px;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:#14121f;padding:40px 36px;box-shadow:var(--sh-3);margin-top:56px;
}
.cta-band:before{
  content:"";position:absolute;left:-80px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,58,237,.55),transparent 66%);
}
.cta-band:after{
  content:"";position:absolute;right:-90px;bottom:-150px;width:400px;height:400px;border-radius:50%;
  background:radial-gradient(circle,rgba(236,72,153,.42),transparent 68%);
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;font-size:clamp(20px,2.4vw,28px);font-weight:900;letter-spacing:-.02em;line-height:1.35;}
.cta-inner p{color:rgba(255,255,255,.78);font-size:14px;margin-top:10px;max-width:620px;}
.cta-btns{display:flex;gap:12px;flex-wrap:wrap;}
.cta-tips{position:relative;z-index:1;display:flex;gap:18px;flex-wrap:wrap;margin-top:24px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);}
.cta-tips span{font-size:12.6px;font-weight:700;color:rgba(255,255,255,.72);display:flex;align-items:center;gap:7px;}
.cta-tips span i{color:var(--cyan);font-size:11px;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:78px;background:#14121f;color:#c9c5da;padding:52px 0 26px;}
.footer-inner{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.25fr;gap:34px;}
.footer-brand .brand{color:#fff;}
.footer-brand p{font-size:13.5px;color:#9d99b0;margin-top:14px;max-width:330px;line-height:1.85;}
.footer-col h4{font-size:12.4px;letter-spacing:.14em;text-transform:uppercase;color:#8d89a4;margin:0 0 14px;font-weight:800;}
.footer-col a,.footer-col span{display:block;font-size:13.6px;color:#c2bed4;padding:5px 0;transition:color .18s ease;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.09);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.6px;color:#8d89a4;
}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .layout{grid-template-columns:216px minmax(0,1fr);gap:24px;}
  .engine-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .voice-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:1024px){
  .layout{grid-template-columns:minmax(0,1fr);}
  .sidebar{position:static;flex-direction:row;overflow-x:auto;padding-bottom:6px;gap:12px;}
  .sidebar::-webkit-scrollbar{height:6px;}
  .sidebar::-webkit-scrollbar-thumb{background:rgba(124,58,237,.3);border-radius:999px;}
  .side-card{min-width:260px;flex:0 0 auto;}
  .side-card.side-wide{min-width:0;flex:1 1 100%;}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:26px;}
  .who-wrap{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
}
@media (max-width:768px){
  .search-wrap{display:none;}
  .chip-ver{display:none;}
  .nav-toggle{display:grid;}
  .topbar-inner{padding:10px 16px;gap:10px;}
  .page-main{padding:18px 16px 6px;}
  .hero{padding:26px 20px 24px;border-radius:var(--r-lg);}
  .pain-grid,.engine-grid,.steps,.voice-grid,.stats-grid{grid-template-columns:minmax(0,1fr);}
  .stats-band{padding:24px 20px;border-radius:var(--r-lg);}
  .cta-band{padding:28px 20px;border-radius:var(--r-lg);}
  .section{margin-top:40px;}
  .metric-row{grid-template-columns:110px minmax(0,1fr) 62px;gap:10px;}
  .news-item{flex-wrap:wrap;gap:8px;}
  .news-date{min-width:0;}
  .news-body{flex:1 1 100%;}
  .footer-inner{padding:0 18px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .topbar-inner{min-height:58px;}
  .brand{font-size:15.5px;}
  .brand-mark{width:30px;height:30px;border-radius:10px;font-size:14px;}
  .hero h1{font-size:23px;}
  .hero-lead{font-size:14px;}
  .btn{padding:10px 18px;font-size:13.4px;}
  .code-body{font-size:11.6px;padding:14px;}
  .stat-num{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .side-card{min-width:230px;}
}

/* roulang page: category3 */
/* ===================== 设计变量 ===================== */
:root{
  --brand-1:#7c3aed;
  --brand-2:#c026d3;
  --brand-3:#ec4899;
  --cyan:#22d3ee;
  --ink:#14121f;
  --ink-2:#4a4660;
  --ink-3:#807c96;
  --bg:#f6f5fb;
  --surface:#ffffff;
  --surface-2:#f2eefc;
  --border:#e7e4f3;
  --r-xl:28px;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(20,18,31,.05), 0 4px 14px rgba(20,18,31,.05);
  --sh-2:0 16px 38px -18px rgba(76,29,149,.30);
  --sh-3:0 34px 74px -32px rgba(76,29,149,.45);
  --grad:linear-gradient(135deg,#7c3aed 0%,#c026d3 54%,#ec4899 100%);
  --grad-soft:linear-gradient(135deg,rgba(124,58,237,.10),rgba(236,72,153,.10));
  --maxw:1280px;
}

/* ===================== 基础 reset ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:120px;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  font-size:15px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.32;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:rgba(124,58,237,.2);}
:focus-visible{outline:3px solid rgba(124,58,237,.45);outline-offset:2px;border-radius:8px;}

.container-x{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}

/* ===================== 顶栏 ===================== */
.topbar{
  position:sticky;top:0;z-index:70;
  background:rgba(255,255,255,.90);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--border);
}
.topbar-inner{
  max-width:var(--maxw);margin:0 auto;padding:10px 24px;
  display:flex;align-items:center;gap:16px;min-height:64px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:.01em;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:16px;font-weight:800;
  box-shadow:0 10px 20px -10px rgba(124,58,237,.95);
  transition:transform .25s ease;
}
.brand:hover .brand-mark{transform:rotate(-6deg);}
.search-wrap{position:relative;flex:1;max-width:420px;display:none;}
.search-wrap i{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:var(--ink-3);font-size:13px;}
.search-input{
  width:100%;padding:9px 16px 9px 38px;border-radius:999px;
  border:1px solid var(--border);background:#faf9fe;font-size:13.5px;transition:.2s;
}
.search-input::placeholder{color:#a9a5bd;}
.search-input:focus{outline:none;border-color:rgba(124,58,237,.5);background:#fff;box-shadow:0 0 0 4px rgba(124,58,237,.12);}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.chip-ver{
  display:none;align-items:center;gap:6px;font-size:12px;font-weight:700;color:var(--brand-1);
  background:rgba(124,58,237,.09);border:1px solid rgba(124,58,237,.16);
  padding:5px 11px;border-radius:999px;
}
.lang-switch{display:flex;align-items:center;gap:2px;background:var(--surface-2);border-radius:999px;padding:3px;}
.lang-switch a{padding:5px 12px;font-size:12.5px;color:var(--ink-3);font-weight:700;border-radius:999px;transition:.18s;}
.lang-switch a.active{background:var(--grad);color:#fff;}
.lang-switch a:not(.active):hover{background:#fff;color:var(--brand-1);}
.nav-toggle{
  display:grid;place-items:center;width:38px;height:38px;border-radius:12px;
  border:1px solid var(--border);background:#fff;cursor:pointer;transition:.2s;flex-shrink:0;
}
.nav-toggle:hover{border-color:rgba(124,58,237,.45);color:var(--brand-1);}
.mobile-nav{display:none;border-top:1px solid var(--border);background:#fff;padding:10px 24px 16px;}
.mobile-nav.open{display:block;}
.mobile-nav a{
  display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:var(--r-md);
  font-size:14.5px;font-weight:600;color:var(--ink-2);transition:.18s;
}
.mobile-nav a i{font-size:13px;color:var(--ink-3);transition:.18s;}
.mobile-nav a:hover,.mobile-nav a.active{background:var(--surface-2);color:var(--brand-1);}
.mobile-nav a:hover i,.mobile-nav a.active i{color:var(--brand-1);}

@media (min-width:1025px){
  .nav-toggle{display:none;}
  .search-wrap{display:block;}
  .chip-ver{display:inline-flex;}
  .mobile-nav{
    display:flex;
    gap:6px;
    max-width:var(--maxw);
    margin:0 auto;
    padding:0 24px 10px;
    border-top:0;
    background:transparent;
  }
  .mobile-nav a{padding:7px 15px;border-radius:999px;font-size:13.6px;}
}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;font-size:14px;font-weight:700;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease,background .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 16px 32px -16px rgba(124,58,237,.95);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 40px -16px rgba(124,58,237,1);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--border);}
.btn-ghost:hover{border-color:rgba(124,58,237,.5);color:var(--brand-1);transform:translateY(-2px);box-shadow:var(--sh-1);}
.btn-light{background:#fff;color:var(--brand-1);}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 22px 38px -18px rgba(20,18,31,.6);}
.btn-sm{padding:8px 17px;font-size:13px;}
.btn-lg{padding:14px 30px;font-size:15px;}

/* ===================== 首屏（文档帮助中心） ===================== */
.doc-hero{padding:48px 0 42px;position:relative;overflow:hidden;}
.doc-hero::before{
  content:"";position:absolute;left:50%;top:-260px;transform:translateX(-50%);
  width:820px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,58,237,.16),rgba(236,72,153,.07) 55%,transparent 72%);
  pointer-events:none;
}
.doc-hero-inner{max-width:840px;margin:0 auto;text-align:center;position:relative;z-index:1;}
.doc-badge{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:800;color:var(--brand-1);
  background:#fff;border:1px solid rgba(124,58,237,.22);padding:6px 15px;border-radius:999px;
  margin-bottom:20px;box-shadow:var(--sh-1);
}
.doc-h1{font-size:clamp(27px,4.4vw,44px);font-weight:900;letter-spacing:-.025em;}
.doc-h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.doc-sub{margin-top:16px;font-size:16px;color:var(--ink-2);}
.hero-search{
  position:relative;display:flex;align-items:center;gap:10px;
  margin:28px auto 0;max-width:680px;background:#fff;border:1px solid var(--border);
  border-radius:999px;padding:7px 8px 7px 20px;box-shadow:var(--sh-2);transition:.25s;
}
.hero-search:focus-within{border-color:rgba(124,58,237,.5);box-shadow:0 0 0 5px rgba(124,58,237,.10),var(--sh-2);}
.hero-search > i{color:var(--ink-3);font-size:14px;flex-shrink:0;}
.hero-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14.5px;padding:9px 0;}
.hero-search input::placeholder{color:#a9a5bd;}
.hero-chips{margin-top:22px;display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:9px;}
.chips-label{font-size:12.5px;font-weight:800;color:var(--ink-3);letter-spacing:.08em;}
.chip{
  display:inline-flex;align-items:center;font-size:13px;font-weight:700;color:var(--ink-2);
  background:#fff;border:1px solid var(--border);padding:6px 14px;border-radius:999px;transition:.2s;
}
.chip:hover{color:var(--brand-1);border-color:rgba(124,58,237,.42);transform:translateY(-2px);box-shadow:var(--sh-1);}

/* ===================== 板块通用 ===================== */
.sec{padding:58px 0;}
.sec-alt{background:linear-gradient(180deg,#ffffff 0%,#f8f6fe 100%);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.sec-head{max-width:760px;margin-bottom:34px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-kicker{
  display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:800;color:var(--brand-1);
  letter-spacing:.08em;background:rgba(124,58,237,.09);border:1px solid rgba(124,58,237,.16);
  padding:5px 13px;border-radius:999px;margin-bottom:14px;
}
.sec-title{font-size:clamp(22px,3vw,32px);font-weight:900;letter-spacing:-.02em;}
.sec-desc{margin-top:12px;color:var(--ink-2);font-size:15.5px;}

/* ===================== 卡片 ===================== */
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(124,58,237,.28);}
.card-num{
  display:inline-block;font-size:12.5px;font-weight:900;letter-spacing:.14em;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:10px;
}
.card h3{font-size:17px;font-weight:800;margin-bottom:8px;}
.card p{color:var(--ink-2);font-size:14.4px;}

/* ===================== 左右分栏 ===================== */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;}
.split-title{font-size:clamp(21px,2.6vw,29px);font-weight:900;letter-spacing:-.02em;margin-bottom:14px;}
.split-text > p{color:var(--ink-2);font-size:15px;margin-bottom:18px;}
.check-list{margin-bottom:26px;}
.check-list li{position:relative;padding-left:30px;margin-bottom:11px;color:var(--ink-2);font-size:14.6px;}
.check-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:2px;width:20px;height:20px;border-radius:7px;
  background:var(--grad-soft);color:var(--brand-1);
  display:grid;place-items:center;font-size:10px;
}

/* 深色看板 */
.panel{
  position:relative;overflow:hidden;background:#14121f;border-radius:var(--r-xl);
  padding:26px;color:#fff;box-shadow:var(--sh-3);
}
.panel::before{
  content:"";position:absolute;right:-90px;top:-100px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,58,237,.55),transparent 70%);
}
.panel-head{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.10);margin-bottom:12px;
}
.panel-title{font-size:14px;font-weight:800;letter-spacing:.04em;}
.panel-live{display:inline-flex;align-items:center;gap:7px;font-size:11.5px;font-weight:800;color:#4ade80;}
.panel-live i{font-size:6px;}
.mrow{position:relative;padding:11px 0;}
.mrow-top{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:9px;}
.mrow-top span{font-size:13px;font-weight:600;color:rgba(255,255,255,.62);}
.mrow-top b{font-size:16.5px;font-weight:900;letter-spacing:-.02em;}
.bar{height:7px;border-radius:999px;background:rgba(255,255,255,.10);overflow:hidden;}
.bar i{display:block;height:100%;border-radius:999px;background:var(--grad);}
.panel-foot{
  position:relative;margin-top:16px;padding-top:16px;border-top:1px solid rgba(255,255,255,.10);
  font-size:12.6px;color:rgba(255,255,255,.55);
}

/* ===================== 四步流程 ===================== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.step{
  position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.step-idx{
  width:34px;height:34px;border-radius:12px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-weight:900;font-size:14px;margin-bottom:14px;
  box-shadow:0 10px 20px -10px rgba(124,58,237,.9);
}
.step h3{font-size:16.5px;font-weight:800;margin-bottom:8px;}
.step p{font-size:14.2px;color:var(--ink-2);}

/* ===================== 数据指标 ===================== */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.stat-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.stat-card b{
  display:block;font-size:clamp(26px,3.4vw,34px);font-weight:900;letter-spacing:-.035em;line-height:1.1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-card span{display:block;margin-top:9px;font-size:13.5px;color:var(--ink-3);font-weight:600;}

.compare{
  margin-top:20px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);
}
.compare-title{font-size:15px;font-weight:800;margin-bottom:6px;}
.compare-note{font-size:13px;color:var(--ink-3);margin-bottom:16px;}
.crow{display:grid;grid-template-columns:132px 1fr 58px;align-items:center;gap:14px;padding:9px 0;}
.crow > span{font-size:13.6px;color:var(--ink-2);font-weight:600;}
.crow .bar-l{height:9px;border-radius:999px;background:var(--surface-2);overflow:hidden;}
.crow .bar-l i{display:block;height:100%;border-radius:999px;background:var(--grad);transition:width .6s ease;}
.crow b{font-size:14px;font-weight:900;text-align:right;}

/* ===================== 反馈 ===================== */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.voice{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.voice:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.voice .quote{font-size:14.7px;color:var(--ink-2);flex:1;}
.voice .who{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--border);
  display:flex;align-items:center;gap:11px;
}
.avatar{
  width:36px;height:36px;border-radius:12px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:14px;flex-shrink:0;
}
.who strong{display:block;font-size:14px;font-weight:800;}
.who small{display:block;font-size:12.5px;color:var(--ink-3);}

/* ===================== 适用人群 ===================== */
.pill-grid{display:flex;flex-wrap:wrap;gap:12px;}
.pill{
  display:inline-flex;align-items:center;gap:9px;padding:12px 19px;border-radius:999px;
  background:var(--surface);border:1px solid var(--border);font-size:14px;font-weight:700;
  color:var(--ink-2);box-shadow:var(--sh-1);transition:.22s;
}
.pill i{color:var(--brand-2);font-size:13px;}
.pill:hover{border-color:rgba(124,58,237,.42);color:var(--brand-1);transform:translateY(-2px);box-shadow:var(--sh-2);}

/* ===================== 笔记列表 ===================== */
.note-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.note{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.note:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(124,58,237,.28);}
.note-tag{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  font-size:11.6px;font-weight:800;letter-spacing:.06em;color:var(--brand-1);
  background:rgba(124,58,237,.09);border:1px solid rgba(124,58,237,.16);
  padding:4px 11px;border-radius:999px;
}
.note h3{font-size:16.5px;font-weight:800;margin:14px 0 10px;}
.note p{font-size:14.2px;color:var(--ink-2);flex:1;}
.note-link{
  margin-top:16px;display:inline-flex;align-items:center;gap:7px;
  font-size:13.5px;font-weight:800;color:var(--brand-1);transition:gap .2s ease;
}
.note-link:hover{gap:12px;}

/* ===================== FAQ ===================== */
.faq-list{max-width:920px;margin:0 auto;display:grid;gap:14px;}
.faq-item{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:22px 24px;box-shadow:var(--sh-1);transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:rgba(124,58,237,.32);box-shadow:var(--sh-2);}
.faq-item h3{display:flex;gap:11px;align-items:flex-start;font-size:16px;font-weight:800;}
.faq-item h3 i{color:var(--brand-2);font-size:13px;margin-top:5px;flex-shrink:0;}
.faq-item p{margin-top:10px;padding-left:24px;font-size:14.4px;color:var(--ink-2);}

/* ===================== 收口行动区 ===================== */
.cta-band{padding:6px 0 68px;}
.cta-inner{
  position:relative;overflow:hidden;background:var(--grad);border-radius:var(--r-xl);
  padding:42px 40px;color:#fff;display:flex;align-items:center;justify-content:space-between;
  gap:32px;box-shadow:var(--sh-3);
}
.cta-inner::before{
  content:"";position:absolute;right:-80px;bottom:-140px;width:320px;height:320px;border-radius:50%;
  background:rgba(255,255,255,.14);
}
.cta-inner::after{
  content:"";position:absolute;left:-60px;top:-120px;width:240px;height:240px;border-radius:50%;
  background:rgba(255,255,255,.09);
}
.cta-copy{position:relative;z-index:1;}
.cta-copy h2{font-size:clamp(20px,2.7vw,29px);font-weight:900;letter-spacing:-.02em;}
.cta-copy p{margin-top:11px;font-size:14.8px;color:rgba(255,255,255,.88);max-width:640px;}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0;}

/* ===================== 页脚 ===================== */
.site-footer{background:#14121f;color:rgba(255,255,255,.72);}
.footer-inner{max-width:var(--maxw);margin:0 auto;padding:54px 24px 26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:34px;}
.footer-brand .brand{color:#fff;}
.footer-brand p{margin-top:14px;font-size:14px;color:rgba(255,255,255,.58);max-width:340px;}
.footer-col h4{font-size:13px;letter-spacing:.12em;color:#fff;font-weight:800;margin-bottom:14px;}
.footer-col a,.footer-col span{display:block;font-size:13.8px;color:rgba(255,255,255,.58);padding:5px 0;transition:.2s;}
.footer-col a:hover{color:#fff;transform:translateX(3px);}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.8px;color:rgba(255,255,255,.42);
}

/* ===================== 响应式 ===================== */
@media (max-width:1024px){
  .container-x{padding:0 20px;}
  .topbar-inner{padding:10px 20px;}
  .split{grid-template-columns:1fr;gap:30px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .voice-grid{grid-template-columns:repeat(2,1fr);}
  .note-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:36px 30px;}
}
@media (max-width:768px){
  html{scroll-padding-top:96px;}
  .sec{padding:44px 0;}
  .doc-hero{padding:36px 0 32px;}
  .doc-sub{font-size:15px;}
  .hero-search{flex-wrap:wrap;border-radius:var(--r-lg);padding:12px 14px;}
  .hero-search > i{display:none;}
  .hero-search input{width:100%;flex:1 0 100%;padding:6px 2px;}
  .hero-search .btn{width:100%;}
  .sec-head{margin-bottom:26px;}
  .steps{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:1fr 1fr;}
  .voice-grid{grid-template-columns:1fr;}
  .note-grid{grid-template-columns:1fr;}
  .crow{grid-template-columns:104px 1fr 48px;gap:10px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .cta-inner{padding:30px 24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}
@media (max-width:520px){
  .container-x{padding:0 16px;}
  .topbar-inner{padding:8px 16px;gap:10px;}
  .brand{font-size:15.5px;}
  .brand span:last-child{max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
  .stat-grid{grid-template-columns:1fr;}
  .card,.step,.stat-card,.voice,.note,.faq-item{padding:20px;}
  .compare{padding:20px;}
  .crow{grid-template-columns:88px 1fr 44px;gap:8px;}
  .crow > span{font-size:12.8px;}
  .pill{padding:10px 15px;font-size:13.2px;}
  .mobile-nav{padding:10px 16px 14px;}
}