/* roulang page: index */
:root{
  --brand-900:#17102B;
  --brand-700:#2B1250;
  --brand-500:#5A2BC4;
  --brand-300:#A78BFA;
  --brand-50:#F6F4FA;
  --accent:#12D6A6;
  --cta-a:#FF8A3D;
  --cta-b:#FF5E3A;
  --ink:#1A1526;
  --ink-2:#5B5570;
  --line:#ECE7F4;
  --white:#ffffff;
  --radius-lg:28px;
  --radius:24px;
  --radius-sm:16px;
  --radius-xs:14px;
  --shadow-1:0 2px 8px rgba(43,18,80,.06);
  --shadow-2:0 18px 44px -18px rgba(43,18,80,.28);
  --shadow-3:0 28px 60px -22px rgba(43,18,80,.40);
  --brand-grad:linear-gradient(120deg,#2B1250 0%,#5A2BC4 62%,#7C4DFF 100%);
  --cta-grad:linear-gradient(100deg,#FF8A3D,#FF5E3A);
  --num:"Inter","DIN Alternate",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--brand-50);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.2px}
button{font-family:inherit;cursor:pointer;border:0}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink)}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:48px;padding:0 28px;border-radius:999px;
  font-size:15.5px;font-weight:600;line-height:1;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  white-space:nowrap;
}
button.btn{background:none}
.btn-primary{background:var(--cta-grad);color:#fff;box-shadow:0 10px 24px -12px rgba(255,94,58,.9)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);filter:brightness(1.04);color:#fff}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand-700);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--brand-300);background:var(--brand-50);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--brand-700)}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-outline-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.4)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.7)}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(18,214,166,.45);outline-offset:2px;
}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--brand-500);font-weight:600;font-size:14.5px;position:relative}
.link-more i{transition:transform .22s ease}
.link-more:hover i{transform:translateX(4px)}
.link-more::after{content:"";position:absolute;left:0;bottom:-3px;height:2px;width:0;background:var(--brand-500);transition:width .25s ease}
.link-more:hover::after{width:100%}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:100}
.nav-top{
  background:#fff;border-bottom:1px solid var(--line);
  height:72px;transition:box-shadow .25s ease;
}
.nav-top .wrap{height:100%;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--brand-grad);
  display:grid;place-items:center;color:#fff;font-size:18px;
  box-shadow:0 8px 18px -10px rgba(90,43,196,.9);
}
.brand-text{display:flex;align-items:center;gap:8px}
.brand-name{font-size:19px;font-weight:800;color:var(--brand-700);letter-spacing:-.3px;line-height:1}
.brand-pill{
  font-size:11.5px;font-weight:600;color:var(--brand-500);
  background:#F1ECFC;border:1px solid var(--brand-300);
  border-radius:999px;padding:2px 9px;line-height:1.6;
}
.search-box{flex:1 1 auto;max-width:420px;position:relative}
.search-box input{
  width:100%;height:40px;border-radius:999px;border:1px solid var(--line);
  background:#FBF9FE;padding:0 18px 0 42px;font-size:14.5px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-box input::placeholder{color:#9A93AC}
.search-box input:focus{outline:none;border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px rgba(18,214,166,.18)}
.search-box i{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:#9A93AC;font-size:14px}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-actions .btn{height:42px;padding:0 22px;font-size:14.5px}

.nav-channels{background:#FBF9FE;border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.nav-channels .wrap{height:52px;display:flex;align-items:center;gap:16px}
.chan-scroll{
  display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;
  -webkit-overflow-scrolling:touch;padding:6px 0;
}
.chan-scroll::-webkit-scrollbar{display:none}
.chan{
  flex:0 0 auto;height:36px;display:inline-flex;align-items:center;padding:0 18px;
  border-radius:999px;font-size:14px;font-weight:500;color:var(--ink-2);
  transition:background .2s ease,color .2s ease,box-shadow .2s ease;
}
.chan:hover{background:#EFE9FB;color:var(--brand-500)}
.chan.active{background:var(--brand-grad);color:#fff;font-weight:600;box-shadow:var(--shadow-1)}
.chan-note{margin-left:auto;font-size:12.5px;color:#8D86A3;white-space:nowrap;display:flex;align-items:center;gap:6px}
.chan-note i{color:var(--accent)}
.is-scrolled .nav-top{box-shadow:var(--shadow-1)}
.is-scrolled .nav-channels{box-shadow:var(--shadow-1)}

/* ============ Hero ============ */
.hero{padding:76px 0 84px;background:
  radial-gradient(900px 420px at 88% -10%,rgba(167,139,250,.22),transparent 70%),
  radial-gradient(700px 360px at 4% 10%,rgba(18,214,166,.10),transparent 70%),
  var(--brand-50);
  position:relative;overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:6px 16px;font-size:13px;font-weight:600;color:var(--brand-500);
  box-shadow:var(--shadow-1);
}
.eyebrow i{color:var(--accent)}
.hero-title{
  font-size:clamp(34px,4.6vw,56px);line-height:1.14;font-weight:800;letter-spacing:-.5px;
  margin:22px 0 18px;color:var(--brand-900);
}
.hero-title em{font-style:normal;color:var(--brand-500);position:relative}
.hero-title em::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:10px;background:rgba(18,214,166,.24);border-radius:6px;z-index:-1}
.hero-sub{font-size:17px;line-height:1.85;color:var(--ink-2);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-media{position:relative}
.hero-media .frame{
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-3);
  border:1px solid rgba(167,139,250,.5);background:var(--brand-grad);aspect-ratio:16/13;
}
.hero-media .frame img{width:100%;height:100%;object-fit:cover}
.float-badge{
  position:absolute;left:-18px;bottom:26px;background:#fff;border-radius:20px;
  padding:14px 20px;box-shadow:var(--shadow-2);border:1px solid var(--line);
  display:flex;align-items:center;gap:12px;
}
.float-badge .fb-num{font-family:var(--num);font-variant-numeric:tabular-nums;font-size:26px;font-weight:800;color:var(--brand-500);line-height:1}
.float-badge .fb-txt{font-size:12.5px;color:var(--ink-2);line-height:1.5}
.float-badge .fb-txt strong{display:block;color:var(--ink);font-size:13.5px;font-weight:600}

.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:52px}
.stat-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:18px 20px;box-shadow:var(--shadow-1);transition:transform .22s ease,box-shadow .22s ease;
}
.stat-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.stat-num{font-family:var(--num);font-variant-numeric:tabular-nums;font-size:28px;font-weight:800;color:var(--brand-700);line-height:1.1}
.stat-num span{font-size:14px;font-weight:600;color:var(--brand-500);margin-left:3px}
.stat-desc{font-size:13px;color:var(--ink-2);margin-top:6px}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section.tint{background:#fff}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px}
.sec-title{font-size:clamp(26px,2.6vw,38px);line-height:1.25;font-weight:700;color:var(--brand-900)}
.sec-desc{font-size:16px;color:var(--ink-2);margin-top:12px;max-width:620px}
.sec-label{font-size:13px;font-weight:700;letter-spacing:2px;color:var(--brand-500);text-transform:uppercase;margin-bottom:12px}

/* 痛点卡 */
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.pain-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 28px 26px 32px;box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.pain-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--brand-grad)}
.pain-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-300)}
.pain-q{
  width:32px;height:32px;border-radius:50%;background:#F1ECFC;color:var(--brand-500);
  display:grid;place-items:center;font-weight:800;font-size:15px;margin-bottom:14px;
}
.pain-card h3{font-size:18px;font-weight:600;color:var(--brand-900);margin-bottom:8px}
.pain-card p{font-size:14.5px;color:var(--ink-2);margin-bottom:14px}

/* 方案卡 */
.solution-grid{display:grid;grid-template-columns:.78fr 2.22fr;gap:32px;align-items:start}
.sol-intro p{font-size:15.5px;color:var(--ink-2);margin-bottom:20px}
.sol-intro .pill-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;
  font-size:12.5px;font-weight:600;color:var(--brand-500);background:#F1ECFC;
}
.plan-wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.plan-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px 26px;overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.plan-card::before{content:"";position:absolute;left:0;right:0;top:0;height:6px;background:var(--brand-grad)}
.plan-card .watermark{
  position:absolute;right:12px;top:8px;font-family:var(--num);font-size:120px;font-weight:800;
  line-height:1;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;
  color:transparent;opacity:.06;pointer-events:none;user-select:none;
}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-300)}
.plan-icon{
  width:44px;height:44px;border-radius:14px;background:var(--brand-grad);color:#fff;
  display:grid;place-items:center;font-size:18px;margin-bottom:18px;
  box-shadow:0 10px 22px -14px rgba(90,43,196,.9);
}
.plan-card h3{font-size:20px;color:var(--brand-900);margin-bottom:14px}
.plan-list li{position:relative;padding-left:18px;font-size:14.5px;color:var(--ink-2);margin-bottom:9px;line-height:1.75}
.plan-list li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--accent)}
.plan-card .link-more{margin-top:14px}
.plan-wide{
  grid-column:1 / -1;background:#FBF9FE;border:1px dashed var(--brand-300);border-radius:var(--radius);
  padding:26px 30px;display:flex;align-items:center;gap:28px;flex-wrap:wrap;
}
.plan-wide h3{font-size:19px;color:var(--brand-900);margin-bottom:6px}
.plan-wide p{font-size:14.5px;color:var(--ink-2);max-width:620px}
.plan-wide .btn{margin-left:auto}

/* 数据深底区 */
.data-band{
  background:var(--brand-900);
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:26px 26px;
  color:#fff;padding:88px 0;position:relative;overflow:hidden;
}
.data-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(700px 360px at 78% 0%,rgba(90,43,196,.55),transparent 68%);
  opacity:.85;
}
.data-band .wrap{position:relative;z-index:2}
.data-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center}
.data-title{font-size:clamp(24px,2.4vw,34px);line-height:1.3;color:#fff;margin-bottom:16px}
.data-note{font-size:14.5px;color:rgba(255,255,255,.72);line-height:1.85;max-width:420px}
.big-badge{
  display:inline-flex;align-items:flex-end;gap:8px;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.18);border-radius:22px;padding:20px 26px;margin-bottom:22px;
}
.big-badge .num{font-family:var(--num);font-variant-numeric:tabular-nums;font-size:52px;font-weight:800;line-height:1;color:var(--accent)}
.big-badge .unit{font-size:14px;color:rgba(255,255,255,.72);padding-bottom:6px}
.metric{margin-bottom:26px}
.metric:last-child{margin-bottom:0}
.metric-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:10px}
.metric-head span{font-size:15px;color:rgba(255,255,255,.88)}
.metric-head b{font-family:var(--num);font-variant-numeric:tabular-nums;font-size:18px;color:#fff;font-weight:800}
.bar{height:8px;border-radius:999px;background:rgba(255,255,255,.12);overflow:hidden}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#12D6A6,#7C4DFF)}
.data-source{margin-top:30px;font-size:12.5px;color:rgba(255,255,255,.5);border-top:1px solid rgba(255,255,255,.12);padding-top:18px}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{
  display:flex;gap:20px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;box-shadow:var(--shadow-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-300)}
.news-thumb{
  flex:0 0 168px;border-radius:var(--radius-sm);overflow:hidden;background:var(--brand-grad);
  aspect-ratio:16/10;align-self:flex-start;
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{flex:1 1 auto;min-width:0;display:flex;flex-direction:column}
.news-cat{
  display:inline-flex;align-self:flex-start;height:24px;align-items:center;padding:0 12px;
  border-radius:999px;font-size:12px;font-weight:600;color:var(--brand-500);background:#F1ECFC;margin-bottom:10px;
}
.news-title{
  font-size:17px;font-weight:600;color:var(--brand-900);line-height:1.55;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-desc{
  font-size:14px;color:var(--ink-2);line-height:1.75;margin-bottom:12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12.5px;color:#8D86A3}
.news-foot time{display:inline-flex;align-items:center;gap:6px}
.news-empty{
  grid-column:1 / -1;text-align:center;padding:56px 24px;background:#fff;border:1px dashed var(--line);
  border-radius:var(--radius);color:var(--ink-2);font-size:15px;
}
.news-empty i{display:block;font-size:26px;color:var(--brand-300);margin-bottom:12px}

/* 表单 */
.form-band{background:#fff;padding:96px 0}
.form-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.form-list{margin-top:22px}
.form-list li{position:relative;padding-left:26px;font-size:15px;color:var(--ink-2);margin-bottom:12px}
.form-list li i{position:absolute;left:0;top:5px;color:var(--accent);font-size:14px}
.privacy-line{font-size:13px;color:#8D86A3;margin-top:18px;line-height:1.8}
.privacy-line a{color:var(--brand-500);font-weight:600}
.form-panel{background:var(--brand-50);border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px}
.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:14px;font-weight:600;color:var(--brand-700)}
.field label .req{color:var(--cta-b);margin-left:3px}
.field input,.field select,.field textarea{
  height:48px;border-radius:var(--radius-xs);border:1px solid var(--line);background:#fff;
  padding:0 16px;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:110px;padding:12px 16px;resize:vertical;line-height:1.75}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(18,214,166,.18)}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--ink-2);line-height:1.7}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand-500);flex:0 0 auto}
.check-row a{color:var(--brand-500);font-weight:600}
.form-submit{display:flex;justify-content:flex-end;align-items:center;gap:16px;margin-top:22px;flex-wrap:wrap}
.form-tip{font-size:13px;color:var(--accent);font-weight:600;display:none}
.form-tip.show{display:inline-flex;align-items:center;gap:6px}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:860px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:box-shadow .22s ease,border-color .22s ease}
.faq-item.open{box-shadow:var(--shadow-2);border-color:var(--brand-300)}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:14px 24px;background:none;text-align:left;font-size:16px;font-weight:600;color:var(--brand-900);
  line-height:1.6;
}
.faq-q:hover{color:var(--brand-500)}
.faq-ic{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:#F1ECFC;color:var(--brand-500);
  display:grid;place-items:center;font-size:13px;transition:transform .25s ease,background .25s ease,color .25s ease;
}
.faq-item.open .faq-ic{transform:rotate(45deg);background:var(--brand-500);color:#fff}
.faq-a{padding:0 24px 20px 24px;border-left:3px solid transparent;transition:border-color .2s ease}
.faq-item.open .faq-a{border-left-color:var(--brand-500)}
.faq-a p{font-size:15.5px;line-height:1.9;color:var(--ink-2);border-top:1px solid var(--line);padding-top:16px}

/* CTA 条 */
.cta-band{
  background:var(--brand-grad);color:#fff;padding:64px 0;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;background:radial-gradient(rgba(255,255,255,.35) 1px,transparent 1px);
  background-size:24px 24px;opacity:.06;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(24px,2.4vw,32px);line-height:1.3}
.cta-inner p{font-size:15px;color:rgba(255,255,255,.82);margin-top:10px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* 页脚 */
.site-footer{
  background:var(--brand-900);color:rgba(255,255,255,.72);padding:72px 0 0;
  background-image:radial-gradient(rgba(255,255,255,.4) 1px,transparent 1px);background-size:28px 28px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;font-size:16px}
.footer-brand .brand-name{color:#fff;font-size:18px}
.footer-brand .brand-pill{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.28);color:#D8CCFF}
.footer-about{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:340px}
.footer-col h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a,.footer-col span{font-size:14px;color:rgba(255,255,255,.68);transition:color .2s ease}
.footer-col a:hover{color:var(--accent)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.68);margin-bottom:12px;line-height:1.7}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;flex-wrap:wrap;
  gap:14px;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.52);
}
.footer-bottom a{color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:var(--accent)}

/* 弹层 */
.modal{position:fixed;inset:0;z-index:200;display:none}
.modal.open{display:block}
.modal-mask{position:absolute;inset:0;background:rgba(23,16,43,.62);backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px)}
.modal-panel{
  position:relative;z-index:2;max-width:560px;width:calc(100% - 40px);margin:6vh auto;
  background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-3);padding:32px;
  max-height:88vh;overflow-y:auto;
}
.modal-panel h3{font-size:22px;color:var(--brand-900);margin-bottom:6px}
.modal-panel .modal-sub{font-size:14px;color:var(--ink-2);margin-bottom:22px}
.modal-close{
  position:absolute;right:16px;top:16px;width:40px;height:40px;border-radius:50%;
  background:var(--brand-50);color:var(--brand-700);display:grid;place-items:center;font-size:15px;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.modal-close:hover{background:#F1ECFC;color:var(--brand-500);transform:rotate(90deg)}
body.lock{overflow:hidden}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-media .frame{aspect-ratio:16/10}
  .float-badge{left:auto;right:16px;bottom:-18px}
  .stat-strip{grid-template-columns:repeat(2,1fr);margin-top:44px}
  .section,.form-band{padding:72px 0}
  .solution-grid{grid-template-columns:1fr;gap:28px}
  .plan-wrap{grid-template-columns:repeat(2,1fr)}
  .data-grid{grid-template-columns:1fr;gap:36px}
  .form-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .search-box{max-width:280px}
  .chan-note{display:none}
}
@media (max-width:768px){
  .news-grid{grid-template-columns:1fr}
  .pain-grid{grid-template-columns:1fr}
  .nav-top{height:64px}
  .nav-top .wrap{gap:14px}
  .search-box{display:none}
  .brand-name{font-size:17px}
  .brand-pill{font-size:11px;padding:2px 7px}
  .news-thumb{flex:0 0 132px}
  .plan-wide .btn{margin-left:0}
}
@media (max-width:640px){
  .wrap{padding:0 20px}
  .hero{padding:44px 0 56px}
  .hero-title{font-size:clamp(28px,7.4vw,36px)}
  .hero-actions .btn{width:100%}
  .float-badge{position:static;margin-top:16px;width:100%;justify-content:flex-start}
  .stat-strip{grid-template-columns:1fr 1fr;gap:12px}
  .section,.form-band{padding:48px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .pain-card,.plan-card{border-radius:20px;padding:24px}
  .plan-wrap{grid-template-columns:1fr}
  .news-card{flex-direction:column;gap:14px}
  .news-thumb{flex:none;width:100%;aspect-ratio:16/9}
  .field-grid{grid-template-columns:1fr}
  .form-panel{padding:24px;border-radius:20px}
  .form-submit{justify-content:stretch;flex-direction:column;align-items:stretch}
  .form-submit .btn{width:100%}
  .faq-q{padding:14px 18px;font-size:15.5px}
  .faq-a{padding:0 18px 18px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .nav-actions .btn{height:38px;padding:0 16px;font-size:13.5px}
  .modal-panel{padding:24px;width:calc(100% - 24px);margin:4vh auto}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .pain-card:hover,.plan-card:hover,.news-card:hover,.stat-item:hover,.btn:hover{transform:none!important}
}

/* roulang page: article */
:root{
  --brand-900:#17102B;
  --brand-700:#2B1250;
  --brand-500:#5A2BC4;
  --brand-300:#A78BFA;
  --brand-50:#F6F4FA;
  --accent:#12D6A6;
  --cta-a:#FF8A3D;
  --cta-b:#FF5E3A;
  --ink:#1A1526;
  --ink-2:#5B5570;
  --line:#ECE7F4;
  --grad-brand:linear-gradient(120deg,#2B1250 0%,#5A2BC4 62%,#7C4DFF 100%);
  --grad-cta:linear-gradient(100deg,#FF8A3D,#FF5E3A);
  --shadow-1:0 2px 8px rgba(43,18,80,.06);
  --shadow-2:0 18px 44px -18px rgba(43,18,80,.28);
  --shadow-3:0 28px 60px -22px rgba(43,18,80,.40);
  --r-lg:28px;
  --r-md:24px;
  --r-sm:18px;
  --r-xs:14px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;color:var(--ink);
  background:var(--brand-50);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p,figure{margin:0}
:focus-visible{outline:3px solid rgba(18,214,166,.55);outline-offset:2px;border-radius:8px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ===== 顶部导航 ===== */
.site-header{position:sticky;top:0;z-index:100;background:#fff}
.nav-top{background:#fff;border-bottom:1px solid var(--line)}
.nav-top .wrap{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:36px;height:36px;border-radius:12px;background:var(--grad-brand);display:grid;place-items:center;color:#fff;font-size:15px;box-shadow:0 8px 18px -8px rgba(90,43,196,.75)}
.brand-text{display:flex;align-items:center;gap:8px}
.brand-name{font-size:18px;font-weight:800;letter-spacing:-.4px;color:var(--brand-900);line-height:1.2}
.brand-pill{font-size:11px;font-weight:600;color:var(--brand-500);background:#EFE9FB;border-radius:999px;padding:2px 9px;line-height:1.7}
.search-box{flex:1 1 auto;max-width:340px;height:40px;display:flex;align-items:center;gap:8px;padding:0 16px;background:#FBF9FE;border:1px solid var(--line);border-radius:999px;color:var(--ink-2);transition:border-color .2s,box-shadow .2s,background .2s}
.search-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(18,214,166,.18);background:#fff}
.search-box i{font-size:13px;color:var(--brand-300)}
.search-box input{flex:1;min-width:0;border:0;background:none;outline:none;font-size:14px;height:100%;color:var(--ink);font-family:inherit}
.search-box input::placeholder{color:#9A93AD}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;border-radius:999px;font-size:15.5px;font-weight:600;line-height:1;white-space:nowrap;transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,background .18s ease,border-color .18s ease,color .18s ease}
.btn-primary{background:var(--grad-cta);color:#fff;box-shadow:0 12px 26px -14px rgba(255,94,58,.9)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);filter:brightness(1.04);color:#fff}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--brand-700)}
.btn-ghost:hover{border-color:var(--brand-300);background:var(--brand-50);color:var(--brand-700)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}

/* ===== 频道 Tabs ===== */
.nav-channels{background:#FBF9FE;border-bottom:1px solid var(--line)}
.nav-channels .wrap{display:flex;align-items:center;gap:16px;height:52px}
.chan-scroll{display:flex;align-items:center;gap:8px;flex:1 1 auto;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:2px 0}
.chan-scroll::-webkit-scrollbar{display:none}
.chan{display:inline-flex;align-items:center;height:36px;padding:0 18px;border-radius:999px;font-size:14px;color:var(--ink-2);white-space:nowrap;transition:background .2s,color .2s,box-shadow .2s}
.chan:hover{background:#EFE9FB;color:var(--brand-500)}
.chan.active{background:var(--grad-brand);color:#fff;box-shadow:var(--shadow-1)}
.chan-note{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--ink-2);white-space:nowrap;flex:none}
.chan-note i{color:var(--brand-300)}

/* ===== 页面通用 ===== */
.page{padding:40px 0 0}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);margin-bottom:24px}
.crumbs a{color:var(--ink-2)}
.crumbs a:hover{color:var(--brand-500)}
.crumbs .sep{opacity:.45}
.crumbs .cur{color:var(--ink);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start}

/* ===== 文章主体 ===== */
.article-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:48px;box-shadow:var(--shadow-1)}
.tag-pill{display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;font-size:12.5px;font-weight:600;color:var(--brand-500);background:#EFE9FB}
.article-card h1{font-size:clamp(30px,3.4vw,44px);line-height:1.28;font-weight:800;letter-spacing:-.6px;color:var(--brand-900);margin:18px 0 20px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;font-size:13px;color:var(--ink-2);padding-bottom:26px;border-bottom:1px solid var(--line)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--brand-300);font-size:13px}
.article-body{font-size:17px;line-height:1.95;padding-top:32px;color:var(--ink)}
.article-body p{margin:0 0 20px}
.article-body h2{font-size:clamp(22px,2.1vw,28px);line-height:1.42;font-weight:700;color:var(--brand-900);margin:44px 0 18px}
.article-body h2::before{content:"";display:block;width:32px;height:4px;border-radius:2px;background:var(--grad-cta);margin-bottom:14px}
.article-body h3{font-size:19.5px;font-weight:600;line-height:1.55;color:var(--brand-900);margin:32px 0 14px;padding-left:14px;border-left:3px solid var(--accent)}
.article-body h4{font-size:17px;font-weight:600;color:var(--brand-700);margin:24px 0 12px}
.article-body ul,.article-body ol{margin:0 0 20px;padding:0}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body ul li::before{content:"";position:absolute;left:2px;top:12px;width:8px;height:8px;border-radius:50%;background:var(--accent)}
.article-body ol{list-style:decimal;padding-left:22px}
.article-body ol li{margin-bottom:10px;padding-left:4px}
.article-body blockquote{margin:24px 0;padding:20px 24px;background:var(--brand-50);border-left:3px solid var(--brand-300);border-radius:0 var(--r-xs) var(--r-xs) 0;color:var(--ink-2)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:20px;margin:24px 0;width:100%;box-shadow:var(--shadow-1)}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--ink-2);text-align:center;margin-top:10px}
.article-body a{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--accent)}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;line-height:1.7}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 16px;text-align:left}
.article-body thead th{background:#EFE9FB;color:var(--brand-700);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FBF9FE}
.article-body code{background:#F1EDF9;color:var(--brand-700);padding:2px 7px;border-radius:6px;font-size:14px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

/* 空态 */
.empty-state{text-align:center;padding:64px 24px;border:1px dashed var(--line);border-radius:20px;background:#FBF9FE}
.empty-state .empty-ico{width:64px;height:64px;border-radius:20px;background:#EFE9FB;color:var(--brand-500);display:grid;place-items:center;font-size:24px;margin:0 auto 18px}
.empty-state h2{font-size:20px;font-weight:700;color:var(--brand-900);margin-bottom:8px}
.empty-state p{font-size:14.5px;color:var(--ink-2);margin-bottom:22px}

/* 文末操作 */
.article-foot{display:flex;flex-wrap:wrap;gap:12px;margin-top:40px;padding-top:28px;border-top:1px solid var(--line)}

/* ===== 侧栏 ===== */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:24px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px;box-shadow:var(--shadow-1)}
.side-card h2{font-size:16px;font-weight:700;color:var(--brand-900);display:flex;align-items:center;gap:8px;margin-bottom:18px}
.side-card h2 i{color:var(--brand-300);font-size:14px}
.mini-list li+li{margin-top:16px;padding-top:16px;border-top:1px dashed var(--line)}
.mini-list a{display:flex;gap:12px;align-items:flex-start}
.mini-thumb{width:76px;height:58px;flex:none;border-radius:12px;overflow:hidden;background:var(--grad-brand)}
.mini-thumb img{width:100%;height:100%;object-fit:cover}
.mini-title{font-size:14px;line-height:1.55;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s}
.mini-list a:hover .mini-title{color:var(--brand-500)}
.side-cta{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;border-radius:var(--r-md);padding:28px 24px;box-shadow:var(--shadow-2)}
.side-cta::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.55) 1px,transparent 1px);background-size:18px 18px;opacity:.06;pointer-events:none}
.side-cta h2{font-size:18px;font-weight:700;line-height:1.5;margin-bottom:10px;position:relative}
.side-cta p{font-size:13.5px;line-height:1.75;color:rgba(255,255,255,.72);margin-bottom:20px;position:relative}
.side-cta .btn{position:relative;width:100%}

/* ===== 相关推荐 ===== */
.related{padding:72px 0 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.sec-head h2{font-size:clamp(22px,2.2vw,30px);font-weight:700;letter-spacing:-.3px;color:var(--brand-900);line-height:1.35}
.sec-head p{font-size:14px;color:var(--ink-2);margin-top:6px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand-500);font-size:14px;font-weight:600}
.link-arrow i{font-size:12px;transition:transform .2s}
.link-arrow:hover i{transform:translateX(4px)}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card-list{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.card-list:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-300)}
.card-list .thumb{aspect-ratio:16/10;background:var(--grad-brand);overflow:hidden}
.card-list .thumb img{width:100%;height:100%;object-fit:cover}
.card-list .body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-list .body h3{font-size:16.5px;line-height:1.55;font-weight:600;color:var(--brand-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s}
.card-list:hover .body h3{color:var(--brand-500)}
.card-list .desc{font-size:13.5px;line-height:1.75;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:8px;font-size:12.5px;color:var(--ink-2)}
.card-meta .go{color:var(--brand-500);font-weight:600;display:inline-flex;align-items:center;gap:5px}
.card-meta .go i{font-size:11px;transition:transform .2s}
.card-list:hover .card-meta .go i{transform:translateX(4px)}

/* ===== CTA 带 ===== */
.cta-band{margin-top:56px;position:relative;overflow:hidden;background:var(--grad-brand);border-radius:var(--r-lg);padding:48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;color:#fff;box-shadow:var(--shadow-3)}
.cta-band::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.6) 1px,transparent 1px);background-size:22px 22px;opacity:.06;pointer-events:none}
.cta-band .cta-copy{position:relative;max-width:620px}
.cta-band h2{font-size:clamp(22px,2.4vw,32px);font-weight:700;line-height:1.35;letter-spacing:-.3px;margin-bottom:12px}
.cta-band p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.80)}
.cta-band .cta-btns{position:relative;display:flex;flex-wrap:wrap;gap:12px}
.cta-band .btn-ghost{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.30);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.18);border-color:rgba(255,255,255,.55);color:#fff}

/* ===== 弹层 ===== */
.modal-mask{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:24px;background:rgba(23,16,43,.62);backdrop-filter:blur(2px)}
.modal-mask.open{display:flex}
.modal-panel{position:relative;width:100%;max-width:560px;max-height:90vh;overflow:auto;background:#fff;border-radius:var(--r-lg);padding:36px;box-shadow:var(--shadow-3)}
.modal-panel h2{font-size:22px;font-weight:700;color:var(--brand-900);margin-bottom:8px}
.modal-panel .modal-sub{font-size:14px;color:var(--ink-2);margin-bottom:24px}
.modal-close{position:absolute;top:16px;right:16px;width:40px;height:40px;border-radius:50%;background:var(--brand-50);color:var(--ink-2);display:grid;place-items:center;font-size:15px;transition:.2s}
.modal-close:hover{background:#EFE9FB;color:var(--brand-500)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;font-weight:600;color:var(--brand-700)}
.field .req{color:var(--cta-b)}
.field input,.field select,.field textarea{width:100%;height:48px;padding:0 16px;font-family:inherit;font-size:14.5px;color:var(--ink);background:#FBF9FE;border:1px solid var(--line);border-radius:var(--r-xs);outline:none;transition:border-color .2s,box-shadow .2s,background .2s}
.field textarea{height:auto;min-height:96px;padding:12px 16px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(18,214,166,.18);background:#fff}
.check-row{grid-column:1/-1;display:flex;align-items:flex-start;gap:10px;font-size:13px;line-height:1.7;color:var(--ink-2)}
.check-row input{width:16px;height:16px;margin-top:3px;accent-color:var(--brand-500);flex:none}
.form-actions{grid-column:1/-1;display:flex;justify-content:flex-end;margin-top:4px}

/* ===== 页脚 ===== */
.site-footer{position:relative;overflow:hidden;margin-top:96px;padding:72px 0 0;background:var(--brand-900);color:rgba(255,255,255,.72)}
.site-footer::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.6) 1px,transparent 1px);background-size:22px 22px;opacity:.05;pointer-events:none}
.footer-grid{position:relative;display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-pill{background:rgba(255,255,255,.12);color:#fff}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:340px}
.footer-col h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px;font-size:14px;line-height:1.7}
.footer-col a:hover{color:var(--accent)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.7;color:rgba(255,255,255,.68)}
.footer-contact i{color:var(--brand-300);margin-top:5px;font-size:13px}
.footer-bottom{position:relative;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 24px;margin-top:48px;padding:24px 0;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.55)}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .nav-top .wrap{height:64px;gap:16px}
  .search-box{max-width:220px}
  .chan-note{display:none}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .article-side>*{flex:1 1 300px}
  .article-card{padding:36px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:36px}
}
@media (max-width:768px){
  .nav-top .wrap{height:60px}
  .nav-actions .btn{height:40px;padding:0 18px;font-size:14px}
  .article-card{padding:24px;border-radius:20px}
  .article-body{font-size:16.5px;line-height:1.9}
  .grid-3{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding:28px;border-radius:20px}
  .cta-band .cta-btns{width:100%}
  .cta-band .cta-btns .btn{width:100%}
}
@media (max-width:640px){
  .wrap{padding:0 20px}
  .search-box{display:none}
  .brand-name{font-size:16.5px}
  .brand-pill{font-size:10.5px;padding:1px 7px}
  .nav-top .wrap{gap:12px}
  .page{padding-top:24px}
  .crumbs .cur{max-width:180px}
  .article-side{flex-direction:column}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{margin-top:64px;padding-top:48px}
  .form-grid{grid-template-columns:1fr}
  .form-actions .btn{width:100%}
  .modal-panel{padding:28px 22px}
  .article-foot .btn{width:100%}
  .related{padding-top:56px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .card-list:hover,.btn-primary:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --brand-900:#17102B;
  --brand-700:#2B1250;
  --brand-500:#5A2BC4;
  --brand-300:#A78BFA;
  --brand-50:#F6F4FA;
  --accent:#12D6A6;
  --cta-a:#FF8A3D;
  --cta-b:#FF5E3A;
  --ink:#1A1526;
  --ink-2:#5B5570;
  --line:#ECE7F4;
  --grad-brand:linear-gradient(120deg,#2B1250 0%,#5A2BC4 62%,#7C4DFF 100%);
  --grad-cta:linear-gradient(100deg,#FF8A3D,#FF5E3A);
  --shadow-1:0 2px 8px rgba(43,18,80,.06);
  --shadow-2:0 18px 44px -18px rgba(43,18,80,.28);
  --shadow-3:0 28px 60px -22px rgba(43,18,80,.40);
  --r-lg:28px;
  --r-md:24px;
  --r-sm:18px;
  --r-xs:14px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--brand-50);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-500);text-decoration:none;transition:color .2s ease}
a:hover{color:#7C4DFF}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(18,214,166,.55);outline-offset:2px;border-radius:6px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:100;background:#fff;box-shadow:0 1px 0 var(--line)}
.nav-top{border-bottom:1px solid var(--line);background:#fff}
.nav-top .wrap{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad-brand);
  color:#fff;display:grid;place-items:center;font-size:15px;
  box-shadow:0 6px 16px -8px rgba(90,43,196,.8);
}
.brand-text{display:inline-flex;align-items:center;gap:8px}
.brand-name{font-size:19px;font-weight:800;color:var(--brand-900);letter-spacing:.5px;line-height:1}
.brand-pill{
  font-size:11px;font-weight:600;line-height:1;padding:5px 9px;border-radius:999px;
  background:#F0EAFE;color:var(--brand-500);letter-spacing:.5px;
}
.search-box{
  flex:1 1 auto;max-width:360px;display:flex;align-items:center;gap:9px;
  height:40px;padding:0 16px;border:1px solid var(--line);border-radius:999px;
  background:#FBF9FE;transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box i{color:var(--ink-2);font-size:13px}
.search-box input{
  flex:1;border:0;outline:0;background:transparent;height:100%;
  font-size:14px;color:var(--ink);font-family:inherit;
}
.search-box input::placeholder{color:#948DA8}
.search-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(18,214,166,.18);background:#fff}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}

.nav-channels{background:#FBF9FE;border-bottom:1px solid var(--line)}
.nav-channels .wrap{display:flex;align-items:center;gap:18px;height:52px}
.chan-scroll{
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  padding:2px 0;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
}
.chan-scroll::-webkit-scrollbar{display:none}
.chan{
  flex:none;height:36px;padding:0 18px;display:inline-flex;align-items:center;
  border-radius:999px;font-size:14px;color:var(--ink-2);white-space:nowrap;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease;
}
.chan:hover{background:#F0EAFE;color:var(--brand-500)}
.chan.active{background:var(--grad-brand);color:#fff;box-shadow:var(--shadow-1)}
.chan.active:hover{color:#fff}
.chan-note{
  margin-left:auto;flex:none;display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--ink-2);white-space:nowrap;
}
.chan-note i{color:var(--brand-300)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:999px;border:1px solid transparent;
  font-size:15.5px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--grad-cta);color:#fff;box-shadow:0 12px 26px -14px rgba(255,94,58,.9)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);color:#fff;filter:brightness(1.04)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand-700)}
.btn-ghost:hover{border-color:var(--brand-300);background:var(--brand-50);color:var(--brand-700)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-light{background:#fff;color:var(--brand-700);box-shadow:0 12px 26px -16px rgba(0,0,0,.5)}
.btn-light:hover{transform:translateY(-2px);color:var(--brand-700);background:#fff}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand-500)}
.link-arrow i{font-size:12px;transition:transform .2s ease}
.link-arrow:hover i{transform:translateX(4px)}

/* ============ 面包屑 ============ */
.crumbs{font-size:13px;color:var(--ink-2);display:flex;flex-wrap:wrap;align-items:center;gap:2px;margin-bottom:18px}
.crumbs a{color:var(--ink-2)}
.crumbs a:hover{color:var(--brand-500)}
.crumbs .sep{margin:0 8px;color:#C6BFD8}

/* ============ Hero ============ */
.hero-cat{
  padding:44px 0 76px;
  background:
    radial-gradient(circle at 88% 12%,rgba(167,139,250,.16),transparent 42%),
    linear-gradient(180deg,#FFFFFF 0%,#FBF9FE 100%);
}
.hero-grid{display:grid;grid-template-columns:1fr 1.08fr;gap:52px;align-items:center}
.hero-media{
  border-radius:var(--r-lg);overflow:hidden;position:relative;
  box-shadow:var(--shadow-2);border:1px solid #fff;
}
.hero-media img{width:100%;height:352px;object-fit:cover;background:var(--grad-brand)}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(23,16,43,0) 55%,rgba(23,16,43,.34) 100%);
  pointer-events:none;
}
.hero-copy h1{font-size:clamp(30px,3.9vw,44px);line-height:1.16;font-weight:800;letter-spacing:-.5px;color:var(--brand-900)}
.hero-copy .hero-sub{
  margin-top:16px;font-size:16.5px;line-height:1.9;color:var(--ink-2);max-width:560px;
}
.jump-pills{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 28px}
.jump-pill{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 16px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  font-size:13.5px;color:var(--brand-700);transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.jump-pill i{font-size:12px;color:var(--brand-500)}
.jump-pill:hover{border-color:var(--brand-300);background:var(--brand-50);color:var(--brand-700);transform:translateY(-2px)}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section-tight{padding:0 0 96px}
.section-head{max-width:720px;margin-bottom:44px}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--brand-500);background:#F0EAFE;border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.section-head h2{font-size:clamp(26px,2.6vw,38px);line-height:1.25;color:var(--brand-900)}
.section-head p{margin-top:14px;font-size:16px;line-height:1.9;color:var(--ink-2)}

/* ============ 要点卡 ============ */
.points-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.point-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 28px 26px 32px;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.point-card::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:4px;border-radius:4px;
  background:var(--grad-brand);
}
.point-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#E3DAF6}
.point-card h3{font-size:20px;font-weight:600;line-height:1.5;color:var(--brand-900);margin-bottom:10px}
.point-card p{font-size:15px;line-height:1.85;color:var(--ink-2)}
.point-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:999px;background:var(--brand-50);
  color:var(--brand-500);font-size:13px;font-weight:700;margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}

/* ============ 数据带 ============ */
.stat-band{
  background:var(--brand-50);border:1px solid #EEE8F8;border-radius:var(--r-lg);
  padding:28px;display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
}
.stat-item{
  background:#fff;border-radius:var(--r-md);padding:24px 26px;border:1px solid #F1ECFA;
  box-shadow:var(--shadow-1);
}
.stat-value{
  font-family:"Inter","DIN Alternate",system-ui,sans-serif;
  font-variant-numeric:tabular-nums;
  font-size:38px;font-weight:800;line-height:1.1;color:var(--brand-500);letter-spacing:-1px;
}
.stat-value small{font-size:14px;font-weight:600;color:var(--ink-2);margin-left:4px;letter-spacing:0}
.stat-label{margin-top:8px;font-size:13.5px;color:var(--ink-2)}

/* ============ 速览卡 ============ */
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quick-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.quick-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#E3DAF6}
.quick-media{aspect-ratio:16/10;overflow:hidden;background:var(--grad-brand)}
.quick-media img{width:100%;height:100%;object-fit:cover;background:var(--grad-brand);transition:transform .4s ease}
.quick-card:hover .quick-media img{transform:scale(1.04)}
.quick-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.tag{
  align-self:flex-start;font-size:12px;font-weight:600;padding:5px 11px;border-radius:999px;
  background:#F0EAFE;color:var(--brand-500);letter-spacing:.3px;
}
.tag-accent{background:rgba(18,214,166,.12);color:#0E9C7A}
.quick-body h3{font-size:20px;font-weight:600;line-height:1.5;color:var(--brand-900)}
.quick-body p{font-size:14.5px;line-height:1.85;color:var(--ink-2);flex:1}
.quick-body .link-arrow{margin-top:4px}

/* ============ 说明条 ============ */
.notice-band{
  display:grid;grid-template-columns:auto 1fr auto;gap:20px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 26px;box-shadow:var(--shadow-1);
}
.notice-band .nb-icon{
  width:44px;height:44px;border-radius:14px;background:var(--brand-50);color:var(--brand-500);
  display:grid;place-items:center;font-size:17px;
}
.notice-band p{font-size:14.5px;line-height:1.85;color:var(--ink-2)}
.notice-band strong{color:var(--brand-900);font-weight:600}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#E3DAF6;box-shadow:var(--shadow-1)}
.faq-item::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;
  background:var(--grad-brand);opacity:0;transition:opacity .25s ease;
}
.faq-item.open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 24px;background:none;border:0;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);text-align:left;line-height:1.6;
}
.faq-q span{flex:1}
.faq-q i{color:var(--brand-500);font-size:14px;transition:transform .25s ease;flex:none}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 24px 22px 24px;font-size:15.5px;line-height:1.9;color:var(--ink-2)}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:var(--grad-brand);color:#fff;padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:var(--shadow-3);
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:22px 22px;opacity:.06;
}
.cta-band h2{color:#fff;font-size:clamp(24px,2.4vw,32px);line-height:1.3;position:relative;z-index:1}
.cta-band p{margin-top:12px;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.85);max-width:520px;position:relative;z-index:1}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1;flex:none}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;background:var(--brand-900);color:rgba(255,255,255,.72);
  padding:68px 0 28px;margin-top:96px;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:26px 26px;opacity:.05;
}
.site-footer .wrap{position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-pill{background:rgba(167,139,250,.18);color:#C9B6FF}
.footer-about{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:320px}
.footer-col h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.3px}
.footer-col ul li{padding:0}
.footer-col ul li a{
  display:inline-block;padding:5px 0;font-size:14px;color:rgba(255,255,255,.72);
}
.footer-col ul li a:hover{color:var(--accent)}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:1.8;padding:5px 0;color:rgba(255,255,255,.72)}
.footer-contact li i{color:var(--brand-300);margin-top:5px;flex:none;font-size:13px}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;
  border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding-top:22px;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 弹层与表单 ============ */
.modal-mask{
  position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;
  padding:24px;background:rgba(23,16,43,.62);backdrop-filter:blur(2px);
}
.modal-mask.show{display:flex}
.modal-panel{
  position:relative;width:100%;max-width:560px;max-height:90vh;overflow:auto;
  background:#fff;border-radius:var(--r-lg);box-shadow:var(--shadow-3);padding:34px;
}
.modal-close{
  position:absolute;right:16px;top:16px;width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);cursor:pointer;
  display:grid;place-items:center;font-size:15px;transition:background .2s ease,color .2s ease;
}
.modal-close:hover{background:var(--brand-50);color:var(--brand-500)}
.modal-panel h3{font-size:23px;color:var(--brand-900);line-height:1.35;padding-right:40px}
.modal-panel .modal-sub{margin:10px 0 22px;font-size:14px;line-height:1.85;color:var(--ink-2)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;font-weight:600;color:var(--brand-700)}
.req{color:var(--cta-b);margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;height:48px;border:1px solid var(--line);border-radius:var(--r-xs);
  background:#FBF9FE;padding:0 14px;font-size:14px;color:var(--ink);
  font-family:inherit;outline:none;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{height:104px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px rgba(18,214,166,.18);
}
.check-row{display:flex;align-items:flex-start;gap:10px;margin-top:6px}
.check-row input[type="checkbox"]{width:17px;height:17px;margin-top:4px;accent-color:var(--brand-500);flex:none}
.check-row span{font-size:13px;line-height:1.7;color:var(--ink-2)}
.form-foot{grid-column:1/-1;display:flex;justify-content:flex-end;margin-top:4px}
.form-foot .btn{height:46px;padding:0 30px}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .wrap{max-width:1140px}
}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-media img{height:300px}
  .section{padding:72px 0}
  .section-tight{padding:0 0 72px}
  .points-grid{grid-template-columns:1fr}
  .quick-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:44px 36px}
  .notice-band{grid-template-columns:auto 1fr;gap:16px}
  .notice-band .btn{grid-column:1/-1;justify-self:flex-start}
}
@media (max-width:900px){
  .chan-note{display:none}
  .stat-band{grid-template-columns:1fr;padding:20px}
}
@media (max-width:768px){
  .nav-top .wrap{height:64px;gap:14px}
  .search-box{max-width:none}
  .brand-name{font-size:17px}
  .brand-mark{width:34px;height:34px;font-size:14px}
  .hero-cat{padding:32px 0 56px}
  .hero-media img{height:250px}
  .hero-btns .btn{flex:1 1 100%}
  .jump-pills{margin:18px 0 22px}
  .quick-grid{grid-template-columns:1fr}
  .cta-band{padding:36px 26px;border-radius:var(--r-md)}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .form-grid{grid-template-columns:1fr}
  .modal-panel{padding:26px 22px;border-radius:var(--r-md)}
}
@media (max-width:560px){
  .wrap{padding:0 20px}
  .search-box{display:none}
  .nav-actions .btn{height:40px;padding:0 18px;font-size:14px}
  .section{padding:48px 0}
  .section-tight{padding:0 0 48px}
  .point-card{padding:22px 22px 22px 26px;border-radius:20px}
  .point-card h3{font-size:18px}
  .quick-card{border-radius:20px}
  .stat-value{font-size:32px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .site-footer{margin-top:64px;padding:52px 0 24px}
  .hero-media{border-radius:20px}
  .section-head{margin-bottom:30px}
  .faq-q{font-size:15px;padding:14px 18px}
  .faq-a-inner{padding:0 18px 20px}
  .notice-band{padding:18px}
  .cta-band h2{font-size:22px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .btn:hover,.point-card:hover,.quick-card:hover,.jump-pill:hover{transform:none !important}
}

/* roulang page: category2 */
:root{
  --brand-900:#17102B;
  --brand-700:#2B1250;
  --brand-500:#5A2BC4;
  --brand-300:#A78BFA;
  --brand-50:#F6F4FA;
  --accent:#12D6A6;
  --cta-a:#FF8A3D;
  --cta-b:#FF5E3A;
  --ink:#1A1526;
  --ink-2:#5B5570;
  --line:#ECE7F4;
  --white:#FFFFFF;
  --grad-brand:linear-gradient(120deg,#2B1250 0%,#5A2BC4 62%,#7C4DFF 100%);
  --grad-cta:linear-gradient(100deg,#FF8A3D,#FF5E3A);
  --shadow-1:0 2px 8px rgba(43,18,80,.06);
  --shadow-2:0 18px 44px -18px rgba(43,18,80,.28);
  --shadow-3:0 28px 60px -22px rgba(43,18,80,.40);
  --r-lg:28px;
  --r-md:24px;
  --r-sm:14px;
  --r-xs:16px;
  --r-pill:999px;
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--brand-50);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-500);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-700);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(18,214,166,.55);outline-offset:2px;border-radius:6px;}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}
.sec{padding:96px 0;}
.sec-tight{padding:72px 0;}
.sec-head{max-width:720px;margin:0 auto 48px;text-align:center;}
.sec-head h2{
  font-size:clamp(26px,2.6vw,38px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.3px;
}
.sec-head p{margin-top:14px;color:var(--ink-2);font-size:15.5px;line-height:1.85;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:15.5px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  color:#fff;background-image:var(--grad-cta);box-shadow:var(--shadow-1);
  filter:saturate(1);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);filter:saturate(1.06) brightness(1.03);color:#fff;}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand-700);}
.btn-ghost:hover{border-color:var(--brand-300);background:var(--brand-50);color:var(--brand-700);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:42px;padding:0 22px;font-size:14.5px;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand-500);
  position:relative;
}
.link-more i{transition:transform .2s ease;font-size:12px;}
.link-more:hover i{transform:translateX(4px);}
.link-more::after{
  content:"";position:absolute;left:0;bottom:-4px;height:2px;width:0;background:var(--brand-500);
  transition:width .24s ease;border-radius:2px;
}
.link-more:hover::after{width:100%;}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:100;background:#fff;}
.nav-top{border-bottom:1px solid var(--line);background:#fff;}
.nav-top .wrap{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background-image:var(--grad-brand);color:#fff;font-size:16px;box-shadow:var(--shadow-1);
}
.brand-text{display:inline-flex;align-items:center;gap:8px;}
.brand-name{font-size:19px;font-weight:800;letter-spacing:-.2px;color:var(--brand-900);}
.brand-pill{
  font-size:12px;font-weight:600;color:var(--brand-500);background:var(--brand-50);
  border:1px solid var(--line);border-radius:var(--r-pill);padding:2px 10px;line-height:1.6;
}
.search-box{
  position:relative;display:flex;align-items:center;flex:1 1 260px;max-width:380px;margin-left:auto;
  background:var(--brand-50);border:1px solid var(--line);border-radius:var(--r-pill);height:40px;padding:0 16px;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.search-box i{color:var(--ink-2);font-size:14px;margin-right:10px;}
.search-box input{
  flex:1;border:0;background:transparent;height:100%;font-size:14px;color:var(--ink);outline:none;
  font-family:inherit;
}
.search-box input::placeholder{color:#9A93AC;}
.search-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(18,214,166,.18);background:#fff;}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-channels{background:#FBF9FE;border-bottom:1px solid var(--line);box-shadow:var(--shadow-1);}
.nav-channels .wrap{display:flex;align-items:center;gap:16px;height:52px;}
.chan-scroll{
  display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;flex:1 1 auto;
  -webkit-overflow-scrolling:touch;
}
.chan-scroll::-webkit-scrollbar{display:none;}
.chan{
  display:inline-flex;align-items:center;height:36px;padding:0 18px;border-radius:var(--r-pill);
  font-size:14px;font-weight:500;color:var(--ink-2);white-space:nowrap;transition:all .2s ease;
}
.chan:hover{background:#EFEAF8;color:var(--brand-500);}
.chan.active{background-image:var(--grad-brand);color:#fff;font-weight:600;box-shadow:var(--shadow-1);}
.chan-note{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--ink-2);white-space:nowrap;flex:0 0 auto;
}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;padding:64px 0 72px;text-align:center;background:#fff;overflow:hidden;
  border-bottom:1px solid var(--line);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(circle at 50% -20%,rgba(90,43,196,.12),transparent 62%),
    radial-gradient(rgba(90,43,196,.10) 1px,transparent 1px);
  background-size:auto,22px 22px;
  opacity:.9;
}
.cat-hero .wrap{position:relative;z-index:1;max-width:860px;}
.breadcrumb{
  display:flex;justify-content:center;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-2);margin-bottom:22px;
}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--brand-500);}
.breadcrumb span.sep{color:#C3BCD4;}
.cat-hero h1{
  font-size:clamp(34px,4.6vw,56px);line-height:1.14;font-weight:800;letter-spacing:-.5px;
  color:var(--brand-900);
}
.cat-hero .hero-sub{
  margin:20px auto 0;max-width:620px;font-size:17px;line-height:1.85;color:var(--ink-2);
}
.hero-cta{margin-top:32px;display:flex;justify-content:center;}
.hero-meta{
  margin-top:28px;display:flex;justify-content:center;flex-wrap:wrap;gap:10px;
}
.meta-chip{
  display:inline-flex;align-items:center;gap:7px;height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--brand-50);border:1px solid var(--line);font-size:13px;color:var(--ink-2);
}
.meta-chip i{color:var(--brand-500);font-size:12px;}

/* ---------- 编号卡 ---------- */
.num-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.num-card{
  position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px 28px 30px;box-shadow:var(--shadow-1);transition:transform .24s ease,box-shadow .24s ease;
}
.num-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:6px;background:var(--grad-brand);
  opacity:.85;
}
.num-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.num-watermark{
  position:absolute;top:6px;right:18px;font-family:"Inter","DIN Alternate",sans-serif;
  font-size:120px;line-height:1;font-weight:800;letter-spacing:-4px;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
  opacity:.09;pointer-events:none;font-variant-numeric:tabular-nums;
}
.num-icon{
  width:44px;height:44px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-50);color:var(--brand-500);font-size:18px;margin-bottom:18px;
  border:1px solid var(--line);
}
.num-card h3{font-size:21px;font-weight:600;line-height:1.5;margin-bottom:12px;position:relative;}
.num-card p{font-size:15px;color:var(--ink-2);line-height:1.85;position:relative;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;position:relative;}
.tag{
  font-size:12.5px;color:var(--brand-700);background:var(--brand-50);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:4px 12px;line-height:1.6;
}

/* ---------- 步骤条 ---------- */
.steps-band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px;}
.steps::before{
  content:"";position:absolute;top:19px;left:8%;right:8%;height:2px;
  background:linear-gradient(90deg,rgba(167,139,250,.15),rgba(90,43,196,.45),rgba(18,214,166,.45),rgba(167,139,250,.15));
  border-radius:2px;z-index:0;
}
.step{position:relative;z-index:1;padding-right:6px;}
.step-dot{
  width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:#fff;border:2px solid var(--brand-300);color:var(--brand-500);
  font-family:"Inter","DIN Alternate",sans-serif;font-weight:800;font-size:15px;
  box-shadow:0 0 0 6px #fff;font-variant-numeric:tabular-nums;
}
.step.is-accent .step-dot{border-color:var(--accent);color:#0B8E6E;}
.step h3{margin-top:18px;font-size:18px;font-weight:600;line-height:1.5;}
.step p{margin-top:8px;font-size:14.5px;color:var(--ink-2);line-height:1.8;}

/* ---------- 图文对照 ---------- */
.compare{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;}
.compare-figure{
  position:relative;border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-3);
  border:1px solid var(--line);background-image:var(--grad-brand);
}
.compare-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.compare-body h2{font-size:clamp(26px,2.6vw,38px);line-height:1.25;font-weight:700;letter-spacing:-.3px;}
.compare-body > p{margin-top:16px;color:var(--ink-2);font-size:15.5px;line-height:1.9;}
.check-list{margin-top:26px;display:grid;gap:16px;}
.check-item{
  display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:18px 20px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.check-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-300);}
.check-item i{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(18,214,166,.12);color:#0B8E6E;font-size:12px;margin-top:3px;
}
.check-item strong{display:block;font-size:15.5px;font-weight:600;color:var(--ink);margin-bottom:2px;}
.check-item span{font-size:14.5px;color:var(--ink-2);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:18px;margin-bottom:14px;
  overflow:hidden;transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-item:hover{box-shadow:var(--shadow-1);}
.faq-item.open{box-shadow:var(--shadow-2);border-color:var(--brand-300);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 22px;background:transparent;border:0;cursor:pointer;
  text-align:left;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q:hover{color:var(--brand-500);}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--brand-50);
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand-500);
  font-size:16px;font-weight:400;transition:transform .24s ease,background-color .24s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--brand-300);color:#fff;}
.faq-a{padding:0 22px 20px;position:relative;}
.faq-a p{
  font-size:15.5px;line-height:1.9;color:var(--ink-2);padding-left:14px;border-left:3px solid transparent;
  border-image:linear-gradient(180deg,#5A2BC4,#12D6A6) 1;
}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;background-image:var(--grad-brand);color:#fff;
  border-radius:var(--r-lg);padding:56px 48px;box-shadow:var(--shadow-3);
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:24px 24px;opacity:.28;
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;}
.cta-band h2{color:#fff;font-size:clamp(24px,2.4vw,34px);line-height:1.3;font-weight:700;}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.82);font-size:15.5px;line-height:1.85;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-actions .btn-ghost{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.32);color:#fff;}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.18);color:#fff;border-color:rgba(255,255,255,.55);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-900);color:rgba(255,255,255,.72);position:relative;overflow:hidden;
  margin-top:96px;padding:72px 0 0;
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(rgba(255,255,255,.22) 1px,transparent 1px);
  background-size:26px 26px;opacity:.05;
}
.footer-grid{
  position:relative;z-index:1;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-pill{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.18);color:rgba(255,255,255,.85);}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:340px;}
.footer-col h3{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px;letter-spacing:.2px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:var(--accent);}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.72);}
.footer-contact i{margin-top:5px;color:var(--brand-300);font-size:13px;}
.footer-bottom{
  position:relative;z-index:1;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .wrap{padding:0 24px;}
}
@media (max-width:1023px){
  .sec{padding:72px 0;}
  .sec-tight{padding:56px 0;}
  .nav-top .wrap{height:64px;gap:14px;}
  .search-box{max-width:240px;}
  .chan-note{display:none;}
  .num-grid{grid-template-columns:1fr 1fr;gap:20px;}
  .steps{grid-template-columns:1fr 1fr;gap:28px 24px;}
  .steps::before{display:none;}
  .compare{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:44px 32px;}
}
@media (max-width:767px){
  .nav-top .wrap{flex-wrap:nowrap;}
  .search-box{display:none;}
  .brand-name{font-size:17px;}
  .nav-actions .btn{height:42px;padding:0 18px;font-size:14px;}
  .cat-hero{padding:48px 0 56px;}
  .cat-hero h1{font-size:clamp(28px,7.4vw,38px);}
  .cat-hero .hero-sub{font-size:15.5px;}
  .hero-cta{margin-top:26px;}
  .hero-cta .btn{width:100%;max-width:320px;}
  .num-grid{grid-template-columns:1fr;}
  .num-watermark{font-size:96px;right:14px;}
  .steps{grid-template-columns:1fr;gap:24px;}
  .step{padding-left:0;}
  .step-dot{box-shadow:0 0 0 4px #fff;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .site-footer{margin-top:64px;padding-top:56px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:519px){
  .wrap{padding:0 20px;}
  .sec{padding:48px 0;}
  .num-card{border-radius:20px;padding:26px 22px 24px;}
  .compare-figure,.check-item,.faq-item{border-radius:16px;}
  .btn{height:46px;padding:0 22px;font-size:15px;}
  .faq-q{padding:12px 16px;font-size:15px;}
  .faq-a{padding:0 16px 18px;}
  .cta-band{padding:36px 22px;border-radius:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .num-card:hover,.check-item:hover,.btn-primary:hover{transform:none;}
}