/* roulang page: index */
/* ================= 设计变量 ================= */
:root{
  --blue:#1F6FD0;
  --blue-deep:#1557A8;
  --blue-soft:#E8F1FC;
  --pink:#FF7A93;
  --green:#58A86B;
  --bg:#F6F9FC;
  --surface:#FFFFFF;
  --soft:#EDF3FA;
  --line:#E3EBF4;
  --card-line:#EEF3F9;
  --text:#0E1B2C;
  --text-2:#33455C;
  --text-3:#6B7C91;
  --text-4:#93A2B4;
  --r-sm:10px;
  --r:14px;
  --r-lg:18px;
  --sh:0 8px 24px rgba(23,58,102,.08);
  --sh-h:0 14px 32px rgba(23,58,102,.12);
  --sec-y:clamp(56px,7vw,110px);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
}
/* ================= 基础 reset ================= */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text-2);
  font-family:var(--font);font-size:16.5px;line-height:1.8;letter-spacing:0;
  -webkit-font-smoothing:antialiased;font-weight:400;
}
img{max-width:100%;display:block;height:auto;border:0}
a{color:var(--blue);text-decoration:none;transition:color .25s ease,background-color .25s ease}
a:hover{color:var(--blue-deep)}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
h1,h2,h3,h4,h5{margin:0;color:var(--text);font-weight:700;letter-spacing:0;line-height:1.35}
h1{font-size:clamp(30px,4.2vw,50px);line-height:1.25}
h2{font-size:clamp(23px,2.6vw,34px)}
h3{font-size:20px;line-height:1.5}
p{margin:0 0 12px}
p:last-child{margin-bottom:0}

/* ================= 容器与栅格 ================= */
.grid-container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.grid-x{margin-left:-12px;margin-right:-12px;flex-wrap:wrap}
.grid-x > .cell{padding-left:12px;padding-right:12px;width:100%}
.grid-x.gap-y{row-gap:24px}
.grid-x.gap-y > .cell{margin-bottom:0}

/* ================= 头部导航 ================= */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid transparent;transition:box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:0 2px 14px rgba(23,58,102,.06)}
.nav-bar{display:flex;align-items:center;height:76px;gap:24px}
.brand{display:inline-flex;align-items:center;gap:9px;font-size:20px;font-weight:700;color:var(--text);white-space:nowrap}
.brand:hover{color:var(--blue)}
.brand-dot{width:9px;height:9px;border-radius:50%;background:var(--pink);display:inline-block}
.nav-links{display:flex;align-items:center;gap:30px;margin-left:auto}
.nav-links a{position:relative;font-size:15.5px;color:var(--text-2);padding:6px 0;white-space:nowrap}
.nav-links a:hover{color:var(--blue)}
.nav-links a.is-active{color:var(--blue);font-weight:600}
.nav-links a.is-active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;background:var(--blue)}
.nav-extra{display:flex;align-items:center;gap:14px;margin-left:8px}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--text-2);
  transition:.25s ease;
}
.icon-btn:hover{color:var(--blue);border-color:var(--blue);background:var(--blue-soft)}
.icon-btn svg{width:18px;height:18px;stroke:currentColor;stroke-width:1.5;fill:none;stroke-linecap:round;stroke-linejoin:round}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:10px;cursor:pointer;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--text-2);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:1.6px;background:var(--text-2)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 移动端抽屉 */
.drawer{position:fixed;inset:0;z-index:120;background:rgba(14,27,44,.36);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease}
.drawer.is-open{opacity:1;visibility:visible}
.drawer__panel{
  position:absolute;top:0;right:0;height:100%;width:min(84vw,340px);background:#fff;
  padding:22px 20px 28px;display:flex;flex-direction:column;transform:translateX(100%);
  transition:transform .28s ease;box-shadow:-12px 0 30px rgba(23,58,102,.10);
}
.drawer.is-open .drawer__panel{transform:none}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer__close{width:36px;height:36px;border:1px solid var(--line);background:#fff;border-radius:10px;cursor:pointer;font-size:18px;line-height:1;color:var(--text-3)}
.drawer__link{display:flex;align-items:center;height:52px;border-bottom:1px solid var(--line);color:var(--text-2);font-size:16px}
.drawer__link.is-active{color:var(--blue);font-weight:600}
.drawer__btn{margin-top:22px}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-sm);font-size:16px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;transition:all .25s ease;text-align:center;
}
.btn-sm{padding:10px 20px;font-size:15px}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-deep);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(31,111,208,.24)}
.btn-outline{background:#fff;color:var(--blue);border-color:var(--blue)}
.btn-outline:hover{background:var(--blue-soft);color:var(--blue-deep)}
.btn-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.72)}
.btn-light:hover{background:rgba(255,255,255,.16);color:#fff}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15.5px;font-weight:600;color:var(--blue);white-space:nowrap}
.link-more:hover{color:var(--blue-deep);text-decoration:underline;text-underline-offset:4px}
.link-more .arrow{transition:transform .25s ease}
.link-more:hover .arrow{transform:translateX(3px)}

/* ================= 通用板块 ================= */
.section{padding:var(--sec-y) 0}
.section--white{background:#fff}
.section--soft{background:var(--soft)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:44px;flex-wrap:wrap}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;color:var(--blue);
  background:var(--blue-soft);border-radius:999px;padding:6px 14px;margin-bottom:14px;letter-spacing:.3px;
}
.sec-kicker i{width:6px;height:6px;border-radius:50%;background:var(--pink);display:inline-block}
.sec-title{margin-bottom:12px}
.sec-desc{color:var(--text-3);font-size:16px;max-width:820px;margin:0}

/* ================= Hero ================= */
.hero{position:relative;overflow:hidden;background:#fff;min-height:580px;display:flex;align-items:center;padding:86px 0}
.hero__media{position:absolute;right:0;top:0;width:58%;height:100%;overflow:hidden}
.hero__media img{width:100%;height:100%;object-fit:cover}
.hero__media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.5) 45%,rgba(255,255,255,.12) 100%)}
.hero__slant{position:absolute;left:0;top:0;width:66%;height:100%;background:var(--blue);clip-path:polygon(0 0,74% 0,60% 100%,0 100%);z-index:1}
.hero__inner{position:relative;z-index:2}
.hero__copy{max-width:610px;color:#fff}
.hero__tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;color:#fff;
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.3);
  border-radius:999px;padding:6px 15px;margin-bottom:20px;
}
.hero h1{color:#fff;margin-bottom:16px}
.hero__sub{font-size:18px;color:rgba(255,255,255,.92);font-weight:600;margin-bottom:16px}
.hero__lead{font-size:16px;line-height:1.85;color:rgba(255,255,255,.86);margin-bottom:28px;max-width:560px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero__meta{display:flex;flex-wrap:wrap;gap:10px 26px;font-size:14px;color:rgba(255,255,255,.82)}
.hero__meta li{display:flex;align-items:center;gap:8px}
.hero__meta li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--pink)}

/* ================= 横滑轨 ================= */
.rail-wrap{overflow:hidden}
.rail{
  display:flex;gap:24px;overflow-x:auto;padding:6px max(24px,calc((100vw - 1200px)/2 + 24px)) 22px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-track{background:transparent}
.rail::-webkit-scrollbar-thumb{background:#D7E3F0;border-radius:4px}
.rail-card{
  flex:0 0 300px;scroll-snap-align:start;background:#fff;border:1px solid var(--card-line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh);transition:.25s ease;
}
.rail-card:hover{box-shadow:var(--sh-h);transform:translateY(-4px)}
.rail-card__img{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--soft)}
.rail-card__img img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.rail-card:hover .rail-card__img img{transform:scale(1.03)}
.rail-card__body{padding:20px 22px 24px}
.rail-card__body h3{font-size:17.5px;margin-bottom:8px}
.rail-card__body p{font-size:14.5px;color:var(--text-3);line-height:1.7;margin:0}

/* ================= 卡片通用 ================= */
.card{
  background:#fff;border:1px solid var(--card-line);border-radius:var(--r-lg);
  padding:30px 28px;box-shadow:var(--sh);height:100%;transition:box-shadow .25s ease,transform .25s ease;
  display:flex;flex-direction:column;
}
.card:hover{box-shadow:var(--sh-h);transform:translateY(-4px)}
.card__icon{
  width:46px;height:46px;border-radius:12px;background:var(--blue-soft);color:var(--blue);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.card__icon svg{width:22px;height:22px;stroke:currentColor;stroke-width:1.5;fill:none;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--text-3);font-size:15px;line-height:1.75;margin-bottom:18px}
.card .link-more{margin-top:auto}
.tag{
  display:inline-flex;align-items:center;font-size:12.5px;font-weight:600;color:var(--blue);
  background:var(--blue-soft);border-radius:999px;padding:4px 11px;
}
.tag--pink{color:#C9405B;background:#FFEEF1}
.tag--green{color:#3C7F4C;background:#EAF6ED}

/* ================= 数据条 ================= */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat{padding:34px 26px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat__num{font-size:clamp(30px,3.4vw,42px);font-weight:700;color:var(--blue);line-height:1.1;letter-spacing:-.5px}
.stat__num em{font-style:normal;font-size:16px;font-weight:600;color:var(--text-3);margin-left:4px}
.stat--pink .stat__num{color:var(--pink)}
.stat--green .stat__num{color:var(--green)}
.stat__label{display:block;font-size:16px;font-weight:600;color:var(--text);margin:12px 0 6px}
.stat__note{font-size:14px;color:var(--text-3);margin:0;line-height:1.7}

/* ================= 流程步骤 ================= */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.step{position:relative;padding-top:6px}
.step__no{
  width:40px;height:40px;border-radius:50%;border:1.5px solid var(--blue);color:var(--blue);
  display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
  background:#fff;margin-bottom:18px;position:relative;z-index:2;
}
.step::before{
  content:"";position:absolute;top:26px;left:40px;right:-24px;height:1px;background:var(--line);z-index:1;
}
.step:last-child::before{display:none}
.step h3{font-size:18px;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--text-3);line-height:1.75;margin:0}

/* ================= 图片卡 ================= */
.media-card{
  background:#fff;border:1px solid var(--card-line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh);transition:.25s ease;height:100%;display:flex;flex-direction:column;
}
.media-card:hover{box-shadow:var(--sh-h);transform:translateY(-4px)}
.media-card__img{position:relative;aspect-ratio:3/2;overflow:hidden;background:var(--soft)}
.media-card__img img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.media-card:hover .media-card__img img{transform:scale(1.03)}
.media-card__img figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:34px 22px 16px;color:#fff;
  font-size:16px;font-weight:600;line-height:1.5;
  background:linear-gradient(180deg,rgba(14,27,44,0) 0%,rgba(14,27,44,.72) 100%);
}
.media-card__body{padding:20px 22px 24px}
.media-card__body p{font-size:14.5px;color:var(--text-3);line-height:1.75;margin:0}

/* ================= 胶囊入口 ================= */
.chips{display:flex;flex-wrap:wrap;gap:12px}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--text-2);font-size:15px;transition:.25s ease;
}
.chip:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-soft)}
.chip--plain{cursor:default}
.chip--plain:hover{border-color:var(--line);color:var(--text-2);background:#fff}
.chip i{width:6px;height:6px;border-radius:50%;background:var(--pink);display:inline-block}

/* ================= 左右分栏 ================= */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split__media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--card-line);box-shadow:var(--sh)}
.split__media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.scene-list li{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}
.scene-list li:first-child{padding-top:6px}
.scene-list li:last-child{border-bottom:0;padding-bottom:0}
.scene-list .sc-ico{
  flex:0 0 40px;width:40px;height:40px;border-radius:11px;background:var(--blue-soft);color:var(--blue);
  display:inline-flex;align-items:center;justify-content:center;
}
.scene-list .sc-ico svg{width:20px;height:20px;stroke:currentColor;stroke-width:1.5;fill:none;stroke-linecap:round;stroke-linejoin:round}
.scene-list h3{font-size:17px;margin-bottom:6px}
.scene-list p{font-size:14.5px;color:var(--text-3);margin:0;line-height:1.75}

/* ================= 分类入口 ================= */
.cat-entry{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:#fff;border:1px solid var(--card-line);border-radius:var(--r-lg);
  padding:32px 34px;box-shadow:var(--sh);transition:.25s ease;
}
.cat-entry:hover{box-shadow:var(--sh-h);transform:translateY(-4px)}
.cat-entry h3{font-size:21px;margin-bottom:10px}
.cat-entry p{color:var(--text-3);font-size:15px;margin:0;max-width:720px}
.cat-entry .go{
  display:inline-flex;align-items:center;gap:10px;font-weight:600;color:var(--blue);white-space:nowrap;
}
.cat-entry .go .arrow{transition:transform .25s ease}
.cat-entry:hover .go .arrow{transform:translateX(4px)}

/* ================= 时间轴 ================= */
.timeline{position:relative;padding-left:28px;max-width:900px}
.timeline::before{content:"";position:absolute;left:5px;top:10px;bottom:12px;width:1px;background:var(--line)}
.tl-item{position:relative;padding-bottom:28px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-28px;top:10px;width:11px;height:11px;border-radius:50%;
  background:#fff;border:2px solid var(--blue);
}
.tl-head{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-bottom:8px}
.tl-ver{
  display:inline-flex;align-items:center;font-size:13.5px;font-weight:700;color:#fff;
  background:var(--blue);border-radius:999px;padding:4px 13px;letter-spacing:.3px;
}
.tl-date{font-size:13.5px;color:var(--text-4)}
.tl-item p{font-size:15px;color:var(--text-3);margin:0;line-height:1.75}

/* ================= 资讯列表 ================= */
.news-card{
  background:#fff;border:1px solid var(--card-line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh);height:100%;display:flex;flex-direction:column;transition:.25s ease;
}
.news-card:hover{box-shadow:var(--sh-h);transform:translateY(-4px)}
.news-card__img{aspect-ratio:16/9;overflow:hidden;background:var(--soft)}
.news-card__img img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.news-card:hover .news-card__img img{transform:scale(1.03)}
.news-card__body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1}
.news-card__body h3{font-size:18px;line-height:1.5;margin:12px 0 10px}
.news-card__body p{font-size:14.5px;color:var(--text-3);line-height:1.75;margin:0 0 16px}
.news-meta{display:flex;gap:16px;font-size:13.5px;color:var(--text-4);margin-top:auto}

/* ================= 合作伙伴 ================= */
.partners{display:grid;grid-template-columns:repeat(6,1fr);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:#fff}
.partner{
  display:flex;align-items:center;justify-content:center;height:96px;font-size:15px;font-weight:600;
  color:var(--text-4);border-right:1px solid var(--line);transition:.25s ease;text-align:center;padding:0 10px;
}
.partner:last-child{border-right:0}
.partner:hover{color:var(--blue);background:var(--blue-soft)}

/* ================= FAQ ================= */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r);margin-bottom:14px;overflow:hidden;transition:border-color .25s ease}
.faq-item:hover{border-color:#D3E2F4}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;display:flex;align-items:center;justify-content:space-between;
  gap:18px;font-size:17.5px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{position:relative;flex:0 0 14px;width:14px;height:14px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--blue);border-radius:2px}
.faq-icon::before{left:0;top:6px;width:14px;height:2px}
.faq-icon::after{left:6px;top:0;width:2px;height:14px;transition:opacity .25s ease,transform .25s ease}
.faq-item[open] .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-body{padding:0 24px 22px;background:var(--bg);color:var(--text-2);font-size:15.5px;line-height:1.85}
.faq-body p{margin:0}
.faq-item[open] .faq-body{padding-top:18px}

/* ================= 保障条 ================= */
.assure{background:var(--soft);padding:34px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.assure__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.assure__item{display:flex;gap:12px;align-items:flex-start}
.assure__item svg{flex:0 0 20px;width:20px;height:20px;stroke:var(--green);stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round;margin-top:5px}
.assure__item strong{display:block;font-size:15.5px;color:var(--text);font-weight:600;margin-bottom:2px}
.assure__item span{font-size:14px;color:var(--text-3);line-height:1.7}

/* ================= CTA 与表单 ================= */
.cta{max-width:720px;margin:0 auto;text-align:center}
.cta h2{margin-bottom:14px}
.cta .sec-desc{margin:0 auto 30px;text-align:center}
.cta__actions{display:flex;justify-content:center;flex-wrap:wrap;gap:14px;margin-bottom:44px}
.form-card{
  background:#fff;border:1px solid var(--card-line);border-radius:var(--r-lg);padding:34px 32px;
  box-shadow:var(--sh);text-align:left;
}
.field{margin-bottom:20px}
.field label{display:block;font-size:14.5px;font-weight:600;color:var(--text);margin-bottom:8px}
.field input,.field textarea{
  width:100%;padding:13px 16px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:#fff;font-size:15.5px;color:var(--text-2);transition:border-color .25s ease,box-shadow .25s ease;
}
.field textarea{min-height:118px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--text-4)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(31,111,208,.12)}
.form-tip{font-size:13.5px;color:var(--text-4);margin-top:14px;line-height:1.7}

/* ================= 页脚 ================= */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px;border-bottom:1px solid var(--line)}
.footer-brand{font-size:20px;font-weight:700;color:var(--text);display:inline-flex;align-items:center;gap:9px;margin-bottom:14px}
.footer-brand:hover{color:var(--blue)}
.footer-desc{font-size:14.5px;color:var(--text-3);line-height:1.8;max-width:340px;margin:0}
.footer-col h4{font-size:15.5px;color:var(--text);margin-bottom:16px;font-weight:600}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14.5px;color:var(--text-3)}
.footer-col a:hover{color:var(--blue)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;padding-top:24px;font-size:13.5px;color:var(--text-4)}
.footer-bottom a{color:var(--text-4)}
.footer-bottom a:hover{color:var(--blue)}

/* ================= 空图占位防破图 ================= */
.ph{background:var(--bg);border:1px solid var(--line)}

/* ================= 响应式 ================= */
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-bar{height:66px}
  .hero{min-height:auto;padding:70px 0}
  .hero__slant{width:100%;clip-path:none}
  .hero__media{width:100%;opacity:.2}
  .hero__media::after{background:linear-gradient(180deg,rgba(255,255,255,.4),rgba(255,255,255,.15))}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat{border-bottom:1px solid var(--line)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(3),.stat:nth-child(4){border-bottom:0}
  .steps{grid-template-columns:repeat(2,1fr);gap:30px 24px}
  .step::before{display:none}
  .split{grid-template-columns:1fr;gap:34px}
  .partners{grid-template-columns:repeat(3,1fr)}
  .partner{border-bottom:1px solid var(--line)}
  .partner:nth-child(3n){border-right:0}
  .partner:nth-child(n+4){border-bottom:0}
  .assure__grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:639px){
  body{font-size:16px}
  .grid-container{padding-left:20px;padding-right:20px}
  .grid-x{margin-left:-8px;margin-right:-8px}
  .grid-x > .cell{padding-left:8px;padding-right:8px}
  .rail{padding-left:20px;padding-right:20px;gap:16px}
  .rail-card{flex:0 0 82%}
  .sec-head{margin-bottom:32px}
  .hero__copy{max-width:100%}
  .hero__lead{font-size:15.5px}
  .hero__actions{flex-direction:column;align-items:stretch}
  .hero__actions .btn{width:100%}
  .btn{padding:13px 22px;font-size:15.5px}
  .card{padding:24px 22px}
  .stats{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line);padding:26px 4px}
  .stat:last-child{border-bottom:0}
  .steps{grid-template-columns:1fr}
  .partners{grid-template-columns:repeat(2,1fr)}
  .partner{border-bottom:1px solid var(--line)}
  .partner:nth-child(2n){border-right:0}
  .partner:nth-child(3n){border-right:1px solid var(--line)}
  .partner:nth-child(n+5){border-bottom:0}
  .assure__grid{grid-template-columns:1fr;gap:16px}
  .cat-entry{padding:24px 22px}
  .form-card{padding:24px 20px}
  .cta__actions{flex-direction:column;align-items:stretch}
  .cta__actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .faq-item summary{font-size:16px;padding:17px 18px}
  .faq-body{padding:0 18px 18px}
}

/* roulang page: category1 */
:root{
 --blue:#1F6FD0;
 --blue-deep:#1557A8;
 --blue-soft:#E8F1FC;
 --pink:#FF7A93;
 --green:#58A86B;
 --bg:#F6F9FC;
 --surface:#FFFFFF;
 --soft:#EDF3FA;
 --line:#E3EBF4;
 --card-line:#EEF3F9;
 --text:#0E1B2C;
 --text-2:#33455C;
 --text-3:#6B7C91;
 --text-4:#93A2B4;
 --r-sm:10px;
 --r:14px;
 --r-lg:18px;
 --sh:0 8px 24px rgba(23,58,102,.08);
 --sh-h:0 14px 32px rgba(23,58,102,.12);
 --sec-y:clamp(56px,7vw,104px);
 --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;background:var(--bg);color:var(--text-2);
 font-family:var(--font);font-size:16.5px;line-height:1.8;letter-spacing:0;
 -webkit-font-smoothing:antialiased;font-weight:400;
}
img{max-width:100%;display:block;height:auto;border:0}
a{color:var(--blue);text-decoration:none;transition:color .25s ease,background-color .25s ease,border-color .25s ease}
a:hover{color:var(--blue-deep)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
button,input{font:inherit;color:inherit}
.grid-container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.grid-x{margin-left:-12px;margin-right:-12px;flex-wrap:wrap}
.grid-x>.cell{padding-left:12px;padding-right:12px;width:100%}
.gap-y{row-gap:24px}
/* ================= 头部导航 ================= */
.site-header{
 position:sticky;top:0;z-index:80;background:#fff;
 border-bottom:1px solid transparent;transition:box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:0 2px 14px rgba(23,58,102,.06)}
.nav-bar{display:flex;align-items:center;height:76px;gap:24px}
.brand{display:inline-flex;align-items:center;gap:9px;font-size:20px;font-weight:700;color:var(--text);white-space:nowrap}
.brand:hover{color:var(--blue)}
.brand-dot{width:9px;height:9px;border-radius:50%;background:var(--pink);display:inline-block}
.nav-links{display:flex;align-items:center;gap:30px;margin-left:auto}
.nav-links a{position:relative;font-size:15.5px;color:var(--text-2);padding:6px 0;white-space:nowrap}
.nav-links a:hover{color:var(--blue)}
.nav-links a.is-active{color:var(--blue);font-weight:600}
.nav-links a.is-active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;background:var(--blue)}
.nav-extra{display:flex;align-items:center;gap:14px;margin-left:8px}
.icon-btn{
 width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
 border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--text-2);transition:.25s ease;
}
.icon-btn:hover{color:var(--blue);border-color:var(--blue);background:var(--blue-soft)}
.icon-btn svg{width:18px;height:18px;stroke:currentColor;stroke-width:1.5;fill:none;stroke-linecap:round;stroke-linejoin:round}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:10px;cursor:pointer;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--text-2);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:1.6px;background:var(--text-2)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.drawer{position:fixed;inset:0;z-index:120;background:rgba(14,27,44,.36);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease}
.drawer.is-open{opacity:1;visibility:visible}
.drawer__panel{
 position:absolute;top:0;right:0;height:100%;width:min(84vw,340px);background:#fff;
 padding:22px 20px 28px;display:flex;flex-direction:column;transform:translateX(100%);
 transition:transform .28s ease;box-shadow:-12px 0 30px rgba(23,58,102,.10);
}
.drawer.is-open .drawer__panel{transform:none}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer__close{width:36px;height:36px;border:1px solid var(--line);background:#fff;border-radius:10px;cursor:pointer;font-size:18px;line-height:1;color:var(--text-3)}
.drawer__link{display:flex;align-items:center;height:52px;border-bottom:1px solid var(--line);color:var(--text-2);font-size:16px}
.drawer__link.is-active{color:var(--blue);font-weight:600}
.drawer__btn{margin-top:22px}
/* ================= 按钮 ================= */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:14px 28px;border-radius:var(--r-sm);font-size:16px;font-weight:600;line-height:1.2;
 border:1px solid transparent;cursor:pointer;transition:all .25s ease;text-align:center;
}
.btn-sm{padding:10px 20px;font-size:15px}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-deep);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(31,111,208,.24)}
.btn-outline{background:#fff;color:var(--blue);border-color:var(--blue)}
.btn-outline:hover{background:var(--blue-soft);color:var(--blue-deep)}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15.5px;font-weight:600;color:var(--blue)}
.link-more .arrow{transition:transform .25s ease}
.link-more:hover .arrow{transform:translateX(3px)}
.link-more:hover{color:var(--blue-deep)}
/* ================= 通用板块 ================= */
.section{padding:var(--sec-y) 0}
.section--white{background:#fff}
.section--soft{background:var(--soft)}
.section-head{margin-bottom:clamp(28px,4vw,48px)}
.section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;letter-spacing:.02em;
 color:var(--blue);background:var(--blue-soft);border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.sec-title{font-size:clamp(24px,3vw,34px);line-height:1.35;font-weight:700;color:var(--text);letter-spacing:0}
.sec-sub{margin-top:14px;font-size:16.5px;color:var(--text-3);max-width:760px}
/* ================= 分类头部 ================= */
.cat-head{padding:clamp(40px,5vw,64px) 0 clamp(32px,4vw,52px);background:#fff;border-bottom:1px solid var(--line)}
.cat-head__grid{display:flex;align-items:flex-start;gap:clamp(28px,5vw,64px)}
.cat-head__copy{flex:1 1 60%;min-width:0}
.cat-head__media{flex:0 0 32%;max-width:380px;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh)}
.cat-head__media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-4);margin-bottom:16px}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--blue)}
.cat-h1{font-size:clamp(28px,3.6vw,44px);line-height:1.28;font-weight:700;color:var(--text);letter-spacing:0}
.cat-lead{margin-top:18px;font-size:17px;line-height:1.85;color:var(--text-2);max-width:680px}
.cat-stats{display:flex;flex-wrap:wrap;gap:12px 34px;margin-top:26px;padding-top:20px;border-top:1px solid var(--line)}
.cat-stats li{display:flex;align-items:baseline;gap:8px;font-size:14.5px;color:var(--text-3)}
.cat-stats strong{font-size:19px;font-weight:700;color:var(--blue)}
/* ================= 卡片通用 ================= */
.card{
 background:var(--surface);border:1px solid var(--card-line);border-radius:var(--r);
 box-shadow:var(--sh);overflow:hidden;transition:transform .25s ease,box-shadow .25s ease;height:100%;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-h)}
.card__media{overflow:hidden;border-radius:12px;margin:12px 12px 0;background:var(--soft)}
.card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease}
.card:hover .card__media img{transform:scale(1.03)}
.card__body{padding:18px 20px 22px}
.tag{
 display:inline-block;font-size:12.5px;font-weight:600;color:var(--blue);
 background:var(--blue-soft);border-radius:999px;padding:4px 12px;
}
.tag--pink{color:#C8385A;background:#FFEDF1}
.tag--green{color:#2F7A45;background:#EAF6ED}
.card__title{font-size:18px;line-height:1.5;font-weight:700;color:var(--text);margin-top:12px}
.card__title a{color:var(--text)}
.card__title a:hover{color:var(--blue)}
.card__desc{margin-top:10px;font-size:15px;line-height:1.75;color:var(--text-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__meta{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);display:flex;justify-content:space-between;font-size:13.5px;color:var(--text-4)}
.list-foot{margin-top:40px;text-align:center}
/* ================= 精选推荐 ================= */
.pick{border-radius:var(--r);border:1px solid var(--card-line);background:#fff;box-shadow:var(--sh);padding:20px;height:100%;transition:transform .25s ease,box-shadow .25s ease}
.pick:hover{transform:translateY(-4px);box-shadow:var(--sh-h)}
.pick__idx{font-size:13px;font-weight:700;color:var(--pink);letter-spacing:.08em}
.pick__title{margin-top:10px;font-size:17px;line-height:1.55;font-weight:700;color:var(--text)}
.pick__title a{color:var(--text)}
.pick__title a:hover{color:var(--blue)}
.pick__desc{margin-top:10px;font-size:14.5px;line-height:1.75;color:var(--text-3)}
/* ================= 步骤条 ================= */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{position:relative;background:#fff;border:1px solid var(--card-line);border-radius:var(--r);padding:26px 22px;box-shadow:var(--sh)}
.step__num{
 width:38px;height:38px;border-radius:50%;border:1.5px solid var(--blue);color:var(--blue);
 display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;background:#fff;
}
.step__title{margin-top:16px;font-size:17px;font-weight:700;color:var(--text);line-height:1.5}
.step__desc{margin-top:10px;font-size:14.8px;line-height:1.75;color:var(--text-3)}
.step::after{
 content:"";position:absolute;top:44px;right:-24px;width:24px;height:1px;background:var(--line);
}
.step:last-child::after{display:none}
/* ================= 专题聚合 ================= */
.topic{border-radius:var(--r-lg);overflow:hidden;position:relative;background:#fff;border:1px solid var(--card-line);box-shadow:var(--sh);transition:transform .25s ease,box-shadow .25s ease;height:100%}
.topic:hover{transform:translateY(-4px);box-shadow:var(--sh-h)}
.topic img{width:100%;aspect-ratio:16/9;object-fit:cover}
.topic__body{padding:20px 22px 24px}
.topic__title{font-size:19px;font-weight:700;color:var(--text);line-height:1.5}
.topic__title a{color:var(--text)}
.topic__title a:hover{color:var(--blue)}
.topic__desc{margin-top:10px;font-size:15px;line-height:1.75;color:var(--text-3)}
/* ================= FAQ ================= */
.faq{max-width:920px;margin:0 auto;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
 display:flex;align-items:center;justify-content:space-between;gap:20px;
 padding:22px 4px;cursor:pointer;list-style:none;font-size:17.5px;font-weight:600;color:var(--text);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--blue)}
.faq summary::after{content:"+";font-size:22px;font-weight:400;color:var(--blue);line-height:1;transition:transform .25s ease}
.faq details[open] summary::after{content:"−"}
.faq__body{padding:0 4px 24px;font-size:15.5px;line-height:1.85;color:var(--text-3);background:transparent}
/* ================= 数据小条 ================= */
.stats-row{
 display:grid;grid-template-columns:repeat(3,1fr);background:#fff;border:1px solid var(--card-line);
 border-radius:var(--r-lg);box-shadow:var(--sh);overflow:hidden;
}
.stats-row__item{padding:30px 28px;border-right:1px solid var(--line)}
.stats-row__item:last-child{border-right:0}
.stats-row__label{font-size:14.5px;color:var(--text-3)}
.stats-row__value{margin-top:8px;font-size:30px;font-weight:700;color:var(--blue);line-height:1.2}
.stats-row__value em{font-style:normal;font-size:16px;color:var(--text-3);margin-left:6px;font-weight:500}
.stats-row__note{margin-top:10px;font-size:14px;line-height:1.7;color:var(--text-4)}
/* ================= 胶囊入口 ================= */
.chips{display:flex;flex-wrap:wrap;gap:14px}
.chip{
 display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:999px;
 border:1px solid var(--line);background:#fff;font-size:15px;color:var(--text-2);transition:.25s ease;
}
.chip:hover{border-color:var(--blue);background:var(--blue-soft);color:var(--blue-deep)}
.chip--on{border-color:var(--blue);color:var(--blue);font-weight:600}
/* ================= 订阅 ================= */
.subscribe{max-width:760px;margin:0 auto;text-align:center}
.subscribe__title{font-size:clamp(22px,2.6vw,30px);font-weight:700;color:var(--text);line-height:1.4}
.subscribe__desc{margin-top:14px;font-size:16px;color:var(--text-3)}
.subscribe__form{display:flex;gap:12px;margin-top:26px}
.subscribe__form input{
 flex:1 1 auto;height:52px;padding:0 18px;border-radius:var(--r-sm);border:1px solid var(--line);
 background:#fff;font-size:15.5px;color:var(--text);transition:border-color .25s ease,box-shadow .25s ease;
}
.subscribe__form input::placeholder{color:var(--text-4)}
.subscribe__form input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(31,111,208,.12);outline:none}
.subscribe__note{margin-top:16px;font-size:13.5px;color:var(--text-4)}
/* ================= 页脚 ================= */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:64px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:9px;font-size:19px;font-weight:700;color:var(--text)}
.footer-brand:hover{color:var(--blue)}
.footer-desc{margin-top:16px;font-size:14.5px;line-height:1.8;color:var(--text-3);max-width:340px}
.footer-col h4{font-size:15.5px;font-weight:700;color:var(--text);margin-bottom:16px}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14.5px;color:var(--text-3)}
.footer-col a:hover{color:var(--blue)}
.footer-bottom{
 margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
 display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13.5px;color:var(--text-4);
}
/* ================= 响应式 ================= */
@media screen and (max-width:1023px){
 .nav-links{display:none}
 .nav-toggle{display:inline-flex}
 .cat-head__grid{flex-direction:column;gap:28px}
 .cat-head__media{flex:none;max-width:100%;width:100%}
 .steps{grid-template-columns:repeat(2,1fr)}
 .step::after{display:none}
 .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media screen and (max-width:767px){
 .grid-container{padding-left:18px;padding-right:18px}
 .nav-bar{height:64px}
 .nav-extra .btn{display:none}
 .section{padding:56px 0}
 .section-head--split{flex-direction:column;align-items:flex-start;gap:14px}
 .stats-row{grid-template-columns:1fr}
 .stats-row__item{border-right:0;border-bottom:1px solid var(--line);padding:22px 20px}
 .stats-row__item:last-child{border-bottom:0}
 .subscribe__form{flex-direction:column}
 .subscribe__form .btn{width:100%}
 .footer-grid{grid-template-columns:1fr;gap:28px}
 .footer-bottom{flex-direction:column;gap:6px}
}
@media screen and (max-width:520px){
 body{font-size:16px}
 .steps{grid-template-columns:1fr}
 .cat-stats{gap:10px 22px}
 .cat-h1{font-size:26px}
 .btn{padding:13px 22px;font-size:15.5px}
}