/* roulang page: index */
:root{
  --c-main:#FF5B2E;
  --c-main-2:#FF3D6E;
  --grad-main:linear-gradient(135deg,#FF7A3D 0%,#FF3D6E 100%);
  --c-sub:#0E9F6E;
  --c-sub-2:#35D0A5;
  --grad-sub:linear-gradient(135deg,#0E9F6E,#35D0A5);
  --c-hl:#FFC53D;
  --bg:#FFF7F1;
  --surface:#FFFFFF;
  --surface-2:#FDF1E7;
  --surface-3:#FFF1E9;
  --ink:#16181D;
  --t1:#16181D;
  --t2:#4A4F58;
  --t3:#8A8F98;
  --line:#EFE4DA;
  --line-strong:rgba(255,91,46,.32);
  --r-xl:32px;
  --r-lg:28px;
  --r-md:22px;
  --r-sm:18px;
  --r-xs:14px;
  --r-pill:999px;
  --sh-1:0 10px 28px rgba(22,24,29,.07);
  --sh-2:0 20px 46px rgba(22,24,29,.13);
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-w:92px;
  --nav-w-open:240px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--t2);
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-main);text-decoration:none;}
a:hover{color:var(--c-main-2);}
h1,h2,h3,h4,p,ul,ol,li,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--c-main);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 48px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 左侧导航 ---------- */
.sidenav{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  background:var(--surface);border-right:1px solid var(--line);
  z-index:70;overflow:hidden;
  transition:width 260ms var(--ease),box-shadow 260ms var(--ease);
}
body.nav-open .sidenav{width:var(--nav-w-open);box-shadow:0 20px 46px rgba(22,24,29,.10);}
.sidenav-inner{display:flex;flex-direction:column;height:100%;padding:22px 14px;gap:22px;}
.brand{display:flex;align-items:center;gap:14px;padding:8px 6px;min-height:52px;color:var(--t1);}
.brand-mark{
  flex:0 0 auto;width:44px;height:44px;border-radius:14px;
  background:var(--grad-main);display:grid;place-items:center;
  box-shadow:0 8px 18px rgba(255,61,110,.28);
}
.brand-mark svg{width:24px;height:24px;stroke:#fff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{display:flex;flex-direction:column;white-space:nowrap;opacity:0;transform:translateX(-6px);transition:opacity 200ms var(--ease),transform 200ms var(--ease);}
body.nav-open .brand-text{opacity:1;transform:none;}
.brand-text strong{font-size:17px;font-weight:800;color:var(--t1);letter-spacing:.01em;line-height:1.3;}
.brand-text em{font-style:normal;font-size:12px;color:var(--c-main);font-weight:600;letter-spacing:.02em;}
.nav-list{display:flex;flex-direction:column;gap:8px;flex:1 1 auto;}
.nav-item{
  position:relative;display:flex;align-items:center;gap:14px;
  height:52px;padding:0 14px;border-radius:var(--r-xs);
  color:var(--t2);font-size:15px;font-weight:600;white-space:nowrap;
  transition:background 200ms var(--ease),color 200ms var(--ease);
}
.nav-item svg{flex:0 0 auto;width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.nav-item .nav-label{opacity:0;transform:translateX(-6px);transition:opacity 200ms var(--ease),transform 200ms var(--ease);}
body.nav-open .nav-item .nav-label{opacity:1;transform:none;}
.nav-item:hover{background:var(--surface-3);color:var(--c-main);}
.nav-item.is-active{background:var(--surface-3);color:var(--c-main);}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:4px;border-radius:0 4px 4px 0;background:var(--c-main);
}
.nav-foot{display:flex;flex-direction:column;gap:12px;padding-top:16px;border-top:1px solid var(--line);}
.nav-foot .btn{width:100%;padding:0 12px;}
.nav-note{font-size:12px;color:var(--t3);white-space:nowrap;opacity:0;transition:opacity 200ms var(--ease);line-height:1.6;}
body.nav-open .nav-note{opacity:1;}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:80;
  background:rgba(255,255,255,.96);backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{height:100%;display:flex;align-items:center;justify-content:space-between;padding:0 20px;}
.brand-m{display:flex;align-items:center;gap:12px;color:var(--t1);}
.brand-m .brand-mark{width:38px;height:38px;border-radius:12px;}
.brand-m .brand-mark svg{width:20px;height:20px;}
.brand-m-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-m-text strong{font-size:15px;font-weight:800;color:var(--t1);}
.brand-m-text em{font-style:normal;font-size:11px;color:var(--c-main);font-weight:600;}
.menu-btn{
  width:44px;height:44px;border:1px solid var(--line);background:var(--surface);border-radius:14px;
  display:grid;place-content:center;gap:5px;transition:border-color 200ms var(--ease),background 200ms var(--ease);
}
.menu-btn span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t1);transition:transform 220ms var(--ease),opacity 180ms var(--ease);}
.menu-btn[aria-expanded="true"]{background:var(--surface-3);border-color:var(--line-strong);}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer{
  position:fixed;inset:64px 0 0 0;z-index:78;background:var(--bg);
  padding:22px 20px 32px;display:flex;flex-direction:column;gap:22px;
  transform:translateY(-12px);opacity:0;visibility:hidden;
  transition:opacity 220ms var(--ease),transform 220ms var(--ease),visibility 220ms;
  overflow-y:auto;
}
.drawer.is-open{opacity:1;visibility:visible;transform:none;}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-item{
  display:flex;align-items:center;gap:14px;height:56px;padding:0 16px;border-radius:var(--r-xs);
  font-size:18px;font-weight:600;color:var(--t1);border:1px solid transparent;
}
.drawer-item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.drawer-item.is-active{background:var(--surface-3);color:var(--c-main);border-color:var(--line-strong);}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:14px;}
.drawer-foot .btn{width:100%;}
.drawer-tip{font-size:13px;color:var(--t3);line-height:1.7;}

/* ---------- 页面外壳 ---------- */
.page{margin-left:var(--nav-w);transition:margin-left 260ms var(--ease);}
body.nav-open .page{margin-left:var(--nav-w-open);}
.section{padding:104px 0;}
.section-alt{background:var(--surface-2);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--c-sub);letter-spacing:.06em;margin-bottom:14px;
}
.kicker::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--c-sub);}
h2.section-title{font-size:36px;line-height:1.25;font-weight:700;color:var(--t1);letter-spacing:.01em;}
.section-desc{margin-top:20px;font-size:17px;color:var(--t2);max-width:680px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:52px;padding:0 28px;border-radius:var(--r-pill);
  font-size:16px;font-weight:700;border:1.5px solid transparent;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),background 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease);
  white-space:nowrap;
}
.btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;transition:transform 220ms var(--ease);}
.btn-primary{
  background-image:var(--grad-main);background-size:160% 100%;background-position:0 0;
  color:#fff;box-shadow:0 10px 24px rgba(255,61,110,.28);
}
.btn-primary:hover{background-position:100% 0;transform:translateY(-4px);box-shadow:0 18px 36px rgba(255,61,110,.34);color:#fff;}
.btn-ghost{background:transparent;border-color:var(--c-main);color:var(--c-main);}
.btn-ghost:hover{background:var(--surface-3);transform:translateY(-4px);color:var(--c-main);}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{transform:translateY(-4px);box-shadow:0 16px 30px rgba(0,0,0,.24);color:var(--ink);}
.btn-text{
  height:auto;padding:0;border:0;background:none;color:var(--c-main);font-weight:700;font-size:15px;
}
.btn-text:hover{color:var(--c-main-2);}
.btn-text:hover svg{transform:translateX(4px);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none;box-shadow:none;}
.btn.is-loading{position:relative;color:transparent;}
.btn.is-loading::after{
  content:"";position:absolute;width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(255,255,255,.55);border-top-color:#fff;animation:spin 700ms linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

/* ---------- 标签 / 徽章 ---------- */
.pill{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(14,159,110,.10);color:var(--c-sub);font-size:12px;font-weight:700;
}
.pill-hl{background:var(--surface-3);color:var(--c-main);}
.badge-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px;}
.badge{
  display:flex;align-items:center;gap:10px;
  padding:12px 20px;border-radius:var(--r-xs);
  background:var(--surface-3);border:1px solid rgba(255,91,46,.24);
  backdrop-filter:blur(6px);
}
.badge strong{font-size:24px;font-weight:700;color:var(--c-main);line-height:1;font-variant-numeric:tabular-nums;}
.badge span{font-size:13px;color:var(--t2);font-weight:600;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--ink);}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;}
.hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(255,122,61,.85) 0%,rgba(255,61,110,.72) 52%,rgba(22,24,29,.72) 100%);
}
.hero-inner{position:relative;z-index:2;padding:120px 0 96px;color:#fff;max-width:900px;}
.hero .eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 18px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.34);
  font-size:13px;font-weight:700;letter-spacing:.04em;color:#fff;
}
.hero h1{
  margin-top:26px;font-size:52px;line-height:1.15;font-weight:800;color:#fff;letter-spacing:.01em;
}
.hero-sub{margin-top:22px;font-size:18px;line-height:1.85;color:rgba(255,255,255,.92);max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:36px;}
.hero .btn-ghost{border-color:rgba(255,255,255,.7);color:#fff;}
.hero .btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff;}
.hero .badge{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.3);}
.hero .badge strong{color:#FFD98A;}
.hero .badge span{color:rgba(255,255,255,.9);}

/* ---------- 价值点 ---------- */
.value-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:var(--gap);}
.value-wide{grid-row:span 2;display:flex;flex-direction:column;gap:22px;padding:32px;border-radius:var(--r-lg);background:var(--surface);box-shadow:var(--sh-1);border:1px solid var(--line);}
.value-wide .value-media{border-radius:var(--r-md);overflow:hidden;background:var(--surface-2);aspect-ratio:16/9;}
.value-wide .value-media img{width:100%;height:100%;object-fit:cover;}
.value-narrow{display:flex;gap:20px;padding:28px;border-radius:var(--r-md);background:var(--surface);border:1px solid var(--line);box-shadow:var(--sh-1);transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);}
.value-narrow:hover,.value-wide:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.v-ico{
  flex:0 0 auto;width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
  background:var(--surface-3);color:var(--c-main);
}
.value-narrow:nth-child(3) .v-ico{background:rgba(14,159,110,.10);color:var(--c-sub);}
.v-ico svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.v-title{font-size:19px;font-weight:700;color:var(--t1);line-height:1.4;}
.v-text{margin-top:10px;font-size:15.5px;color:var(--t2);line-height:1.8;}

/* ---------- 故事 ---------- */
.story-row{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
.story-row + .story-row{margin-top:80px;}
.story-row.reverse .story-media{order:2;}
.story-media{border-radius:var(--r-lg);overflow:hidden;background:var(--surface-2);box-shadow:var(--sh-1);aspect-ratio:4/3;}
.story-media img{width:100%;height:100%;object-fit:cover;}
.story-body{max-width:620px;}
.story-body h3{font-size:26px;line-height:1.35;font-weight:700;color:var(--t1);}
.story-body p{margin-top:18px;font-size:17px;line-height:1.8;color:var(--t2);}
.story-points{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
.story-points li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--t2);}
.story-points li::before{content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;border-radius:50%;background:var(--c-sub);}

/* ---------- 精选内容 ---------- */
.pick-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:var(--gap);}
.pick-main{
  grid-row:span 3;display:flex;flex-direction:column;border-radius:var(--r-lg);overflow:hidden;
  background:var(--surface);border:1.5px solid var(--line-strong);box-shadow:var(--sh-1);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease);
}
.pick-main:hover,.pick-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.pick-cover{aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.pick-cover img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease);}
.pick-main:hover .pick-cover img,.pick-card:hover .pick-cover img{transform:scale(1.04);}
.pick-body{padding:28px;display:flex;flex-direction:column;gap:14px;flex:1;}
.pick-body h3{font-size:22px;line-height:1.4;font-weight:700;color:var(--t1);}
.pick-body p{font-size:15.5px;color:var(--t2);line-height:1.8;}
.pick-card{
  display:flex;gap:18px;padding:22px;border-radius:var(--r-sm);background:var(--surface);
  border:1px solid var(--line);box-shadow:var(--sh-1);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.pick-card:hover{border-color:var(--line-strong);}
.pick-thumb{flex:0 0 96px;height:96px;border-radius:var(--r-xs);overflow:hidden;background:var(--surface-2);}
.pick-thumb img{width:100%;height:100%;object-fit:cover;}
.pick-card-body{min-width:0;}
.pick-card-body h4{font-size:17px;font-weight:700;color:var(--t1);line-height:1.45;margin-top:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.pick-card-body p{margin-top:8px;font-size:14px;color:var(--t3);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* ---------- 最新信息 ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap);}
.news-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-sm);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--t3);}
.news-title{font-size:19px;font-weight:700;color:var(--t1);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-excerpt{font-size:15px;color:var(--t2);line-height:1.75;
  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;padding-top:14px;border-top:1px solid var(--line);}
.news-foot time{font-size:13px;color:var(--t3);font-variant-numeric:tabular-nums;}
.arrow{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--surface-3);color:var(--c-main);transition:transform 220ms var(--ease),background 220ms var(--ease);}
.news-card:hover .arrow{transform:translateX(4px);background:var(--c-main);color:#fff;}
.arrow svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.empty-state{
  grid-column:1/-1;min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--surface-2);border:1px dashed var(--line);border-radius:var(--r-md);padding:32px;text-align:center;
}
.empty-state svg{width:32px;height:32px;stroke:var(--t3);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.empty-state p{font-size:15px;color:var(--t3);}

/* ---------- 信任背书 ---------- */
.trust{background:var(--ink);color:#C9CDD4;}
.trust .section-title{color:#fff;}
.trust .section-desc{color:#C9CDD4;}
.trust .kicker{color:var(--c-hl);}
.trust .kicker::before{background:var(--c-hl);}
.trust-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:8px;}
.trust-item{
  padding:28px 24px;border-radius:var(--r-md);border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.04);transition:border-color 220ms var(--ease),transform 220ms var(--ease);
}
.trust-item:hover{border-color:rgba(255,197,61,.55);transform:translateY(-4px);}
.trust-num{font-size:34px;font-weight:700;color:var(--c-hl);line-height:1.1;font-variant-numeric:tabular-nums;}
.trust-label{margin-top:10px;font-size:14px;color:#C9CDD4;line-height:1.7;}
.trust-note{margin-top:28px;font-size:15px;color:#9AA0A8;max-width:760px;}

/* ---------- FAQ ---------- */
.faq-list{max-width:840px;margin:0 auto;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:64px;padding:16px 4px;font-size:17px;font-weight:700;color:var(--t1);
  transition:color 200ms var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--c-main);}
.faq-item summary::after{
  content:"+";flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  display:grid;place-items:center;font-size:18px;font-weight:700;
  background:var(--surface-3);color:var(--c-main);
  transition:transform 200ms var(--ease),background 200ms var(--ease),color 200ms var(--ease);
}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg);background:var(--c-main);color:#fff;}
.faq-body{max-width:720px;padding:0 4px 24px;font-size:16px;line-height:1.8;color:var(--t2);}

/* ---------- CTA ---------- */
.cta{padding:0 0 104px;}
.cta-box{
  border-radius:var(--r-xl);padding:56px;
  background-image:var(--grad-main);background-size:180% 180%;background-position:0 0;
  color:#fff;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,440px);gap:48px;align-items:center;
  box-shadow:0 24px 60px rgba(255,61,110,.28);
}
.cta-box h2{font-size:34px;line-height:1.3;font-weight:800;color:#fff;}
.cta-box p{margin-top:16px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.92);max-width:520px;}
.cta-form{display:flex;flex-direction:column;gap:12px;}
.field-row{display:flex;gap:12px;}
.field{
  flex:1 1 auto;height:52px;padding:0 18px;border-radius:var(--r-xs);
  background:#fff;border:1px solid rgba(255,255,255,.6);color:var(--t1);font-size:15px;
  transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.field::placeholder{color:#A9AEB6;}
.field:focus{outline:none;border-color:var(--c-main);box-shadow:0 0 0 4px rgba(255,91,46,.18);}
.field.is-error{border-color:#E0245E;box-shadow:0 0 0 4px rgba(224,36,94,.16);}
.form-note{font-size:13px;color:rgba(255,255,255,.9);line-height:1.7;min-height:20px;}
.form-note.error{color:#FFE1EA;}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink);color:#C9CDD4;padding:80px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;}
.footer h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;}
.footer-brand{display:flex;align-items:center;gap:14px;margin-bottom:20px;}
.footer-brand .brand-mark{width:44px;height:44px;border-radius:14px;}
.footer-brand-text strong{display:block;font-size:18px;font-weight:800;color:#fff;line-height:1.35;}
.footer-brand-text em{font-style:normal;font-size:12px;color:var(--c-hl);font-weight:600;}
.footer p{font-size:14.5px;line-height:1.85;color:#9AA0A8;max-width:340px;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14.5px;color:#C9CDD4;transition:color 200ms var(--ease);}
.footer-links a:hover{color:var(--c-hl);}
.footer-bottom{
  margin-top:56px;padding:24px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:#8A8F98;
}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom .links a{color:#8A8F98;}
.footer-bottom .links a:hover{color:var(--c-hl);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 40px;}
  .hero h1{font-size:46px;}
}
@media (max-width:1023px){
  .sidenav{display:none;}
  .topbar{display:block;}
  .page{margin-left:0;padding-top:64px;}
  body.nav-open .page{margin-left:0;}
  .section{padding:80px 0;}
  .value-grid{grid-template-columns:1fr;}
  .value-wide{grid-row:auto;}
  .pick-grid{grid-template-columns:1fr;}
  .pick-main{grid-row:auto;}
  .story-row{grid-template-columns:1fr;gap:32px;}
  .story-row.reverse .story-media{order:0;}
  .story-row + .story-row{margin-top:56px;}
  .trust-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-box{grid-template-columns:1fr;gap:32px;padding:44px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 32px;}
  .section{padding:64px 0;}
  h2.section-title{font-size:26px;}
  .hero-inner{padding:72px 0 64px;}
  .hero h1{font-size:34px;}
  .hero-sub{font-size:16.5px;}
  .hero-mask{background:linear-gradient(135deg,rgba(255,122,61,.9) 0%,rgba(255,61,110,.8) 55%,rgba(22,24,29,.82) 100%);}
  .badge{padding:10px 16px;}
  .badge strong{font-size:20px;}
  .news-grid{grid-template-columns:1fr;}
  .news-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .cta{padding-bottom:64px;}
  .cta-box{padding:32px 24px;border-radius:var(--r-lg);}
  .cta-box h2{font-size:24px;}
  .faq-item summary{font-size:16px;min-height:56px;}
  .footer{padding-top:60px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519px){
  .container{padding:0 20px;}
  .hero h1{font-size:30px;}
  .btn{height:48px;padding:0 22px;font-size:15px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .badge-row{gap:10px;}
  .field-row{flex-direction:column;}
  .trust-grid{grid-template-columns:1fr;}
  .pick-card{flex-direction:column;}
  .pick-thumb{flex:0 0 auto;width:100%;height:160px;}
  .story-media{aspect-ratio:16/10;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;}
  .btn:hover,.news-card:hover,.pick-main:hover,.pick-card:hover,.value-narrow:hover,.value-wide:hover,.trust-item:hover{transform:none;}
}

/* roulang page: article */
:root{
  --c-main:#FF5B2E;
  --c-main-deep:#FF3D6E;
  --c-sub:#0E9F6E;
  --c-sub-soft:#35D0A5;
  --c-hl:#FFC53D;
  --bg:#FFF7F1;
  --surface:#FFFFFF;
  --surface-2:#FDF1E7;
  --ink:#16181D;
  --t1:#16181D;
  --t2:#4A4F58;
  --t3:#8A8F98;
  --line:#EFE4DA;
  --line-hover:rgba(255,91,46,.32);
  --grad-main:linear-gradient(135deg,#FF7A3D 0%,#FF3D6E 100%);
  --grad-sub:linear-gradient(135deg,#0E9F6E 0%,#35D0A5 100%);
  --r-lg:28px;
  --r-md:22px;
  --r-sm:18px;
  --sh-1:0 10px 28px rgba(22,24,29,.07);
  --sh-2:0 20px 46px rgba(22,24,29,.13);
  --ff:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--ff);
  font-size:17px;
  line-height:1.8;
  color:var(--t2);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--c-main);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-main-deep)}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:none;background:none}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding-left:0;list-style:none}
:focus-visible{outline:2px solid var(--c-main);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 48px}
.nums{font-variant-numeric:tabular-nums}

/* ============ 左侧竖向导航 ============ */
.layout{min-height:100vh}
.side-nav{
  position:fixed;top:0;left:0;bottom:0;
  width:96px;z-index:80;
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:20px 12px 24px;
  overflow:hidden;
  transition:width .28s var(--ease),box-shadow .28s var(--ease);
}
.side-nav:hover,.side-nav:focus-within{width:248px;box-shadow:var(--sh-2)}
.brand{display:flex;align-items:center;gap:12px;padding:6px;border-radius:16px;flex:0 0 auto}
.brand-mark{
  flex:0 0 46px;height:46px;border-radius:15px;
  background-image:var(--grad-main);
  display:grid;place-items:center;color:#fff;
  box-shadow:0 8px 20px rgba(255,91,46,.28);
}
.brand-mark svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.brand-text{display:flex;flex-direction:column;line-height:1.2;white-space:nowrap;opacity:0;transform:translateX(-8px);transition:opacity .24s var(--ease),transform .24s var(--ease)}
.side-nav:hover .brand-text,.side-nav:focus-within .brand-text{opacity:1;transform:none}
.brand-text strong{font-size:16px;font-weight:800;color:var(--t1)}
.brand-text em{font-style:normal;font-size:12px;color:var(--t3);letter-spacing:.02em}

.nav-list{display:flex;flex-direction:column;gap:6px;margin-top:22px;flex:1 1 auto}
.nav-item{
  position:relative;display:flex;align-items:center;gap:14px;
  height:50px;padding:0 13px;border-radius:14px;
  color:var(--t2);font-size:15px;font-weight:500;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-item svg{flex:0 0 22px;width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.nav-label{white-space:nowrap;opacity:0;transform:translateX(-8px);transition:opacity .24s var(--ease),transform .24s var(--ease)}
.side-nav:hover .nav-label,.side-nav:focus-within .nav-label{opacity:1;transform:none}
.nav-item:hover{background:#FFF1E9;color:var(--c-main)}
.nav-item.is-active{background:#FFF1E9;color:var(--c-main);font-weight:700}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:4px;
  border-radius:0 4px 4px 0;background:var(--c-main);
}
.side-foot{display:flex;flex-direction:column;gap:12px;padding-top:16px;border-top:1px solid var(--line)}
.side-foot .btn{width:100%;padding:0 16px;white-space:nowrap}
.side-note{font-size:12px;color:var(--t3);white-space:nowrap;opacity:0;transition:opacity .24s var(--ease)}
.side-nav:hover .side-note,.side-nav:focus-within .side-note{opacity:1}

/* ============ 移动端顶栏 ============ */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:90;
  background:rgba(255,247,241,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;
  padding:0 18px;
}
.topbar-brand{display:flex;align-items:center;gap:10px}
.topbar-brand .brand-mark{flex:0 0 40px;height:40px;border-radius:13px}
.topbar-brand .brand-mark svg{width:21px;height:21px}
.topbar-brand .brand-text{opacity:1;transform:none}
.topbar-brand .brand-text strong{font-size:15px}
.topbar-brand .brand-text em{font-size:11px}
.burger{
  width:46px;height:46px;border-radius:14px;border:1px solid var(--line);
  background:var(--surface);display:grid;place-items:center;gap:5px;
  padding:12px;transition:border-color .2s var(--ease),background .2s var(--ease);
}
.burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--t1);transition:transform .25s var(--ease),opacity .2s}
.burger:hover{border-color:var(--line-hover);background:#FFF1E9}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.drawer{
  position:fixed;inset:64px 0 0;z-index:85;
  background:var(--bg);
  padding:20px 18px 32px;
  display:flex;flex-direction:column;gap:6px;
  transform:translateY(-12px);opacity:0;pointer-events:none;
  transition:opacity .24s var(--ease),transform .24s var(--ease);
  overflow-y:auto;
}
.drawer.is-open{opacity:1;transform:none;pointer-events:auto}
.drawer .nav-item{height:56px;font-size:17px;border-radius:16px}
.drawer .nav-item svg,.drawer .nav-label{opacity:1;transform:none}
.drawer .nav-label{font-size:17px}
.drawer .btn{margin-top:16px;width:100%}

/* ============ 内容骨架 ============ */
.content{margin-left:96px;display:flex;flex-direction:column;min-height:100vh}
.main{flex:1 1 auto;padding-bottom:0}

/* ============ 页头区 ============ */
.page-head{padding:44px 0 0}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:14px;color:var(--t3);margin-bottom:22px;
}
.breadcrumb a{color:var(--t2)}
.breadcrumb a:hover{color:var(--c-main)}
.breadcrumb .sep{color:#CFC4B9}
.breadcrumb .cur{color:var(--c-main);font-weight:600}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.04em;
  color:var(--c-sub);background:rgba(14,159,110,.09);
  border:1px solid rgba(14,159,110,.22);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.article-title{
  font-size:36px;line-height:1.28;font-weight:800;color:var(--t1);
  letter-spacing:0;max-width:900px;
}
.meta-row{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  margin-top:18px;font-size:14px;color:var(--t3);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#D9CEC3}
.meta-chip{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--surface-2);border-radius:999px;padding:4px 12px;color:var(--t2);
}
.article-head{max-width:900px}

.cover{
  margin:34px 0 0;border-radius:var(--r-md);overflow:hidden;
  background:var(--surface-2);box-shadow:var(--sh-1);
  aspect-ratio:16/9;
}
.cover img{width:100%;height:100%;object-fit:cover}

/* ============ 正文 ============ */
.article-body{margin-top:42px}
.prose{
  max-width:760px;margin:0 auto;
  font-size:17px;line-height:1.9;color:var(--t2);
}
.prose > * + *{margin-top:1.2em}
.prose p{margin:0}
.prose h2{
  font-size:24px;line-height:1.4;font-weight:700;color:var(--t1);
  margin-top:40px;margin-bottom:-.4em;
}
.prose h3{
  font-size:20px;line-height:1.45;font-weight:700;color:var(--t1);
  margin-top:32px;margin-bottom:-.5em;
}
.prose strong{color:var(--t1);font-weight:700}
.prose a{color:var(--c-main);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.prose a:hover{color:var(--c-main-deep)}
.prose ul,.prose ol{margin-top:1.1em;padding-left:0}
.prose ul li,.prose ol li{position:relative;padding-left:22px;line-height:1.8;margin-bottom:.5em}
.prose ul li::before{
  content:"";position:absolute;left:4px;top:.72em;
  width:7px;height:7px;border-radius:50%;background:var(--c-main);
}
.prose ol{counter-reset:olist}
.prose ol li{counter-increment:olist;padding-left:30px}
.prose ol li::before{
  content:counter(olist);position:absolute;left:0;top:.28em;
  width:20px;height:20px;border-radius:50%;
  background:var(--surface-2);color:var(--c-main);
  font-size:12px;font-weight:700;display:grid;place-items:center;
}
.prose blockquote{
  border-left:4px solid var(--c-main);
  background:var(--surface-2);
  padding:18px 22px;border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--t1);font-size:16.5px;
}
.prose blockquote p + p{margin-top:.8em}
.prose img{border-radius:16px;width:100%;margin-top:1.2em}
.prose figure{margin-top:1.4em}
.prose figcaption{font-size:13px;color:var(--t3);text-align:center;margin-top:10px}
.prose table{width:100%;border-collapse:collapse;font-size:15.5px;display:block;overflow-x:auto;white-space:nowrap}
.prose th,.prose td{border:1px solid var(--line);padding:12px 16px;text-align:left}
.prose th{background:var(--surface-2);color:var(--t1);font-weight:700}
.prose hr{border:none;border-top:1px solid var(--line);margin:34px 0}

.empty{
  background:var(--surface-2);border-radius:var(--r-md);
  min-height:220px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:14px;text-align:center;padding:32px;
}
.empty svg{width:44px;height:44px;fill:none;stroke:var(--c-main);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.empty p{font-size:15px;color:var(--t2);margin:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:52px;padding:0 28px;border-radius:999px;
  font-size:16px;font-weight:600;line-height:1;
  border:1.5px solid transparent;white-space:nowrap;
  transition:transform .22s var(--ease),background-position .3s var(--ease),box-shadow .22s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.btn-primary{
  background-image:var(--grad-main);background-size:160% 100%;background-position:0 0;
  color:#fff;box-shadow:0 10px 24px rgba(255,91,46,.26);
}
.btn-primary:hover{background-position:100% 0;transform:translateY(-3px);box-shadow:0 16px 34px rgba(255,61,110,.32);color:#fff}
.btn-primary:active{transform:translateY(-1px)}
.btn-ghost{border-color:var(--c-main);color:var(--c-main);background:transparent}
.btn-ghost:hover{background:#FFF1E9;transform:translateY(-3px)}
.btn-ghost:active{transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--t1)}
.btn-light:hover{transform:translateY(-3px);box-shadow:var(--sh-2);color:var(--c-main)}
.btn-sm{height:46px;padding:0 20px;font-size:15px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--c-main);
  transition:gap .22s var(--ease),color .2s var(--ease);
}
.btn-text svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .22s var(--ease)}
.btn-text:hover{gap:12px;color:var(--c-main-deep)}

/* ============ 标签与徽章 ============ */
.tag-row{max-width:760px;margin:44px auto 0;display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.tag-row .tag-label{font-size:14px;color:var(--t3)}
.tag{
  display:inline-flex;align-items:center;
  height:34px;padding:0 16px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);
  font-size:14px;color:var(--t2);
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.tag:hover{border-color:var(--line-hover);color:var(--c-main);transform:translateY(-2px)}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;
  background:rgba(14,159,110,.1);color:var(--c-sub);
}
.badge{
  display:inline-flex;align-items:center;gap:10px;
  background:#FFF1E9;border:1px solid rgba(255,91,46,.24);
  border-radius:14px;padding:12px 18px;
}
.badge b{font-size:22px;font-weight:800;color:var(--c-main);font-variant-numeric:tabular-nums;line-height:1}
.badge span{font-size:12.5px;color:var(--t3)}

/* ============ 文章尾部 ============ */
.article-foot{
  max-width:760px;margin:44px auto 0;
  border-top:1px solid var(--line);padding-top:26px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.prev-next{display:grid;grid-template-columns:1fr 1fr;gap:18px;max-width:900px;margin:34px auto 0}
.pn-card{
  display:block;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-sm);padding:20px 22px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .2s var(--ease);
}
.pn-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-hover)}
.pn-card em{font-style:normal;font-size:13px;color:var(--t3);display:block;margin-bottom:6px}
.pn-card strong{font-size:16.5px;font-weight:700;color:var(--t1);display:block;line-height:1.5}

/* ============ 板块通用 ============ */
.section{padding:88px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:28px}
.section-head h2{font-size:30px;line-height:1.3;font-weight:800;color:var(--t1)}
.section-head p{font-size:15px;color:var(--t3);margin-top:10px}
.section-head .btn-text{flex:0 0 auto}

/* ============ 相关推荐列表卡 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.list-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-sm);overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .2s var(--ease);
}
.list-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-hover)}
.list-card .thumb{aspect-ratio:16/9;background:var(--surface-2);overflow:hidden}
.list-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.list-card:hover .thumb img{transform:scale(1.05)}
.list-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.list-card h3{
  font-size:17px;line-height:1.5;font-weight:700;color:var(--t1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.list-card p{
  font-size:14.5px;color:var(--t2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.list-card .foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--t3);padding-top:10px;
}
.list-card .foot svg{width:16px;height:16px;fill:none;stroke:var(--c-main);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .22s var(--ease)}
.list-card:hover .foot svg{transform:translateX(4px)}

/* ============ CTA 条 ============ */
.cta-band{
  margin-top:88px;border-radius:32px;
  background-image:var(--grad-main);
  background-size:150% 150%;
  padding:46px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-80px;
  width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.12);
}
.cta-band .cta-copy{position:relative;z-index:2;max-width:560px}
.cta-band h2{font-size:28px;line-height:1.35;font-weight:800;color:#fff}
.cta-band p{color:rgba(255,255,255,.9);font-size:15.5px;margin-top:10px}
.cta-band .cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}

/* ============ 统计条 ============ */
.stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
  margin-top:26px;
}
.stat-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 24px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-1)}
.stat-card b{display:block;font-size:26px;font-weight:800;color:var(--t1);font-variant-numeric:tabular-nums;line-height:1.2}
.stat-card span{display:block;font-size:13.5px;color:var(--t3);margin-top:6px}

/* ============ FAQ ============ */
.faq{margin-top:26px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:64px;padding:16px 26px;text-align:left;
  font-size:17px;font-weight:600;color:var(--t1);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.faq-q:hover{background:#FFF9F4;color:var(--c-main)}
.faq-ico{
  flex:0 0 22px;width:22px;height:22px;position:relative;
  transition:transform .2s var(--ease);
}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-main);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-ico::before{width:14px;height:2px}
.faq-ico::after{width:2px;height:14px}
.faq-item.is-open .faq-ico{transform:rotate(180deg)}
.faq-item.is-open .faq-ico::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a-inner{max-width:720px;padding:0 26px 24px;font-size:16px;line-height:1.8;color:var(--t2)}

/* ============ 页脚 ============ */
.footer{background:var(--ink);color:#C9CDD4;margin-top:96px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-mark{flex:0 0 44px;height:44px;border-radius:14px}
.footer-brand-text{display:flex;flex-direction:column;line-height:1.25}
.footer-brand-text strong{font-size:17px;font-weight:800;color:#fff}
.footer-brand-text em{font-style:normal;font-size:12.5px;color:#8A8F98}
.footer p{font-size:14.5px;line-height:1.85;color:#A9AEB6;max-width:340px}
.footer h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14.5px;color:#C9CDD4}
.footer-links a:hover{color:var(--c-hl)}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.09);
  padding:22px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:#8A8F98;
}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom .links a{color:#C9CDD4}
.footer-bottom .links a:hover{color:var(--c-hl)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 32px}
  .article-title{font-size:32px}
  .section-head h2{font-size:27px}
}
@media (max-width:1023px){
  .side-nav{display:none}
  .topbar{display:flex}
  .content{margin-left:0;padding-top:64px}
  .container{padding:0 24px}
  .page-head{padding-top:32px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .footer{margin-top:72px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .article-title{font-size:26px;line-height:1.34}
  .kicker{font-size:12.5px}
  .meta-row{font-size:13px}
  .cover{aspect-ratio:4/3;margin-top:26px}
  .prose{font-size:16.5px;line-height:1.85}
  .prose h2{font-size:21px;margin-top:32px}
  .prose h3{font-size:18.5px;margin-top:26px}
  .section{padding-top:60px}
  .section-head h2{font-size:23px}
  .card-grid{grid-template-columns:1fr}
  .prev-next{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{padding:32px 24px;border-radius:24px;margin-top:60px}
  .cta-band h2{font-size:22px}
  .cta-band .cta-actions{width:100%}
  .cta-band .cta-actions .btn{flex:1 1 auto}
  .faq-q{font-size:16px;padding:14px 20px;min-height:56px}
  .faq-a-inner{padding:0 20px 20px;font-size:15.5px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer{padding-top:48px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .btn{height:48px;padding:0 22px;font-size:15.5px}
}
@media (max-width:479px){
  .article-title{font-size:23px}
  .stats{grid-template-columns:1fr}
  .brand-text strong{font-size:14.5px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .list-card:hover,.pn-card:hover,.btn:hover,.stat-card:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --c-main:#FF5B2E;
  --c-main-2:#FF3D6E;
  --c-sub:#0E9F6E;
  --c-sub-2:#35D0A5;
  --c-hl:#FFC53D;
  --bg:#FFF7F1;
  --surface:#FFFFFF;
  --surface-2:#FDF1E7;
  --tint:#FFF1E9;
  --ink:#16181D;
  --t1:#16181D;
  --t2:#4A4F58;
  --t3:#8A8F98;
  --line:#EFE4DA;
  --line-hover:rgba(255,91,46,.32);
  --grad-main:linear-gradient(135deg,#FF7A3D 0%,#FF3D6E 100%);
  --grad-sub:linear-gradient(135deg,#0E9F6E,#35D0A5);
  --r-xl:32px;
  --r-lg:28px;
  --r-md:22px;
  --r-sm:18px;
  --r-xs:14px;
  --r-pill:999px;
  --sh-1:0 10px 28px rgba(22,24,29,.07);
  --sh-2:0 20px 46px rgba(22,24,29,.13);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sb:92px;
  --sb-open:240px;
  --font:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.8;
  color:var(--t2);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--c-main);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-main-2)}
h1,h2,h3,h4{margin:0;color:var(--t1);line-height:1.25;letter-spacing:0}
h1{font-size:52px;font-weight:800;line-height:1.15}
h2{font-size:36px;font-weight:700}
h3{font-size:22px;font-weight:600}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
::selection{background:rgba(255,91,46,.18)}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 48px}
:focus-visible{outline:2px solid var(--c-main);outline-offset:2px;border-radius:6px}

/* ---------- 左侧竖向导航 ---------- */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sb);
  background:#fff;
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  padding:22px 14px 20px;
  z-index:80;
  overflow:hidden;
  transition:width .28s var(--ease),box-shadow .28s var(--ease);
}
.sidebar:hover,.sidebar.is-open{width:var(--sb-open);box-shadow:var(--sh-2)}
.brand{display:flex;align-items:center;gap:12px;padding:6px 6px 20px;border-bottom:1px solid var(--line);min-height:64px}
.brand-mark{
  flex:0 0 36px;width:36px;height:36px;border-radius:12px;
  background:var(--grad-main);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(255,61,110,.28);
}
.brand-mark svg{width:20px;height:20px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.brand-text{display:flex;flex-direction:column;white-space:nowrap;opacity:0;transform:translateX(-6px);transition:opacity .22s var(--ease),transform .22s var(--ease)}
.sidebar:hover .brand-text,.sidebar.is-open .brand-text{opacity:1;transform:none}
.brand-text strong{font-size:17px;color:var(--t1);font-weight:700;letter-spacing:0}
.brand-text em{font-style:normal;font-size:12px;color:var(--c-main);letter-spacing:.06em}
.nav-list{display:flex;flex-direction:column;gap:6px;padding-top:22px}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:14px;
  height:46px;padding:0 20px;border-radius:var(--r-xs);
  color:var(--t2);font-size:15px;font-weight:500;white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-item svg{width:22px;height:22px;flex:0 0 22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.nav-label{opacity:0;transform:translateX(-6px);transition:opacity .22s var(--ease),transform .22s var(--ease)}
.sidebar:hover .nav-label,.sidebar.is-open .nav-label{opacity:1;transform:none}
.nav-item:hover{background:var(--surface-2);color:var(--t1)}
.nav-item.is-active{background:var(--tint);color:var(--c-main);font-weight:600}
.nav-item.is-active::before{content:"";position:absolute;left:-14px;top:9px;bottom:9px;width:4px;border-radius:0 4px 4px 0;background:var(--c-main)}
.sidebar-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;padding-top:18px;border-top:1px solid var(--line)}
.sidebar-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 16px;border-radius:var(--r-pill);
  background:var(--grad-main);color:#fff;font-size:14px;font-weight:600;
  box-shadow:0 10px 20px rgba(255,61,110,.24);white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),padding .22s var(--ease);
}
.sidebar-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 28px rgba(255,61,110,.3)}
.sidebar-cta svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.sidebar:not(:hover):not(.is-open) .sidebar-cta{padding:0;width:44px;border-radius:50%}
.sidebar:not(:hover):not(.is-open) .sidebar-cta span{display:none}
.sidebar-note{font-size:12px;color:var(--t3);text-align:center;white-space:nowrap;opacity:0;transition:opacity .22s var(--ease);line-height:1.5;margin:0}
.sidebar:hover .sidebar-note,.sidebar.is-open .sidebar-note{opacity:1}

/* ---------- 移动端顶栏 ---------- */
.mobile-header{display:none}
.mobile-mask{display:none}

/* ---------- 内容壳 ---------- */
.content{margin-left:var(--sb);display:flex;flex-direction:column;min-height:100vh}

/* ---------- 分类 banner ---------- */
.cat-banner{
  position:relative;
  min-height:260px;
  display:flex;align-items:center;
  background-color:var(--surface-2);
  background-image:linear-gradient(135deg,rgba(14,159,110,.9) 0%,rgba(53,208,165,.72) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.cat-banner::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.35) 1px,transparent 1px);
  background-size:18px 18px;opacity:.12;pointer-events:none;
}
.cat-banner .container{position:relative;z-index:2;padding-top:44px;padding-bottom:44px}
.banner-kicker{
  display:inline-flex;align-items:center;gap:8px;
  margin:0 0 14px;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.18);
  border:1px solid rgba(255,255,255,.34);
  color:#fff;font-size:13px;font-weight:600;letter-spacing:.04em;
  backdrop-filter:blur(4px);
}
.banner-kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-hl)}
.cat-banner h1{color:#fff;font-size:40px;line-height:1.2;max-width:900px;text-shadow:0 4px 18px rgba(0,0,0,.16)}
.banner-sub{margin:16px 0 0;color:rgba(255,255,255,.94);font-size:15px;line-height:1.7;max-width:680px}

/* ---------- 面包屑 ---------- */
.crumb{padding:26px 0 0;font-size:13px;color:var(--t3);display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.crumb a{color:var(--t3)}
.crumb a:hover{color:var(--c-main)}
.crumb .sep{color:#C9C0B8}
.crumb .now{color:var(--c-main);font-weight:600}

/* ---------- 分类主布局 ---------- */
.cat-layout{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,8fr);
  gap:24px;
  align-items:start;
  padding-top:34px;
  padding-bottom:104px;
}
.toc{position:sticky;top:24px}
.toc-box{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px 20px;
  box-shadow:var(--sh-1);
}
.toc-title{margin:0 0 14px;font-size:13px;font-weight:700;color:var(--t3);letter-spacing:.08em}
.toc-link{
  display:flex;align-items:center;gap:10px;
  padding:11px 12px;border-radius:12px;
  font-size:15px;color:var(--t2);
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.toc-link::before{content:"";width:6px;height:6px;border-radius:50%;background:#DBD1C8;transition:background .2s var(--ease)}
.toc-link:hover{background:var(--surface-2);color:var(--t1);transform:translateX(2px)}
.toc-link.is-active{background:var(--tint);color:var(--c-main);font-weight:600}
.toc-link.is-active::before{background:var(--c-main)}
.toc-hint{margin:18px 0 0;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--t3);line-height:1.7}
.toc-hint strong{display:block;color:var(--t1);font-size:15px;margin-bottom:4px}

/* ---------- 内容块 ---------- */
.cat-main{display:flex;flex-direction:column;gap:24px;min-width:0}
.block-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:32px;
  box-shadow:var(--sh-1);
  scroll-margin-top:24px;
  transition:box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.block-card:hover{box-shadow:var(--sh-2);border-color:var(--line-hover)}
.block-head{display:flex;align-items:center;gap:12px;margin-bottom:20px;flex-wrap:wrap}
.block-tag{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(14,159,110,.1);
  border:1px solid rgba(14,159,110,.24);
  color:var(--c-sub);font-size:12px;font-weight:700;
}
.block-card h2{font-size:26px;font-weight:700}
.block-card h3{font-size:19px;margin:22px 0 10px}
.block-text{max-width:680px}
.block-text p{margin:0 0 14px}
.block-figure{
  margin:22px 0 0;border-radius:var(--r-sm);overflow:hidden;
  background:var(--surface-2);border:1px solid var(--line);
}
.block-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.block-figure figcaption{padding:10px 16px;font-size:13px;color:var(--t3);background:var(--surface)}
.point-list{display:flex;flex-direction:column;gap:12px;margin-top:18px}
.point-list li{display:flex;gap:12px;align-items:flex-start;font-size:16px;line-height:1.75}
.point-list li svg{width:20px;height:20px;flex:0 0 20px;margin-top:5px;fill:none;stroke:var(--c-main);stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 数据行 / 表格感 ---------- */
.data-table{margin-top:20px;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden}
.data-row{display:grid;grid-template-columns:110px 1fr 1fr 110px;gap:12px;padding:14px 18px;font-size:15px;border-bottom:1px solid var(--line);align-items:center;background:var(--surface);transition:background .2s var(--ease)}
.data-row:last-child{border-bottom:0}
.data-row:hover{background:var(--surface-2)}
.data-row.head{background:var(--tint);font-size:13px;font-weight:700;color:var(--t1);letter-spacing:.04em}
.data-row .k{font-variant-numeric:tabular-nums;font-weight:700;color:var(--t1)}
.data-row .s{justify-self:end;font-size:13px;color:var(--t3)}
.state-pill{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600}
.state-pill.live{background:rgba(255,91,46,.12);color:var(--c-main)}
.state-pill.live::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-main);animation:pulse 1.6s infinite}
.state-pill.soon{background:rgba(14,159,110,.12);color:var(--c-sub)}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.8)}}

/* ---------- KPI 徽章 ---------- */
.kpi-row{display:flex;flex-wrap:wrap;gap:12px;margin:20px 0 4px}
.kpi{
  display:flex;flex-direction:column;gap:2px;
  padding:12px 18px;border-radius:var(--r-xs);
  background:var(--tint);
  border:1px solid rgba(255,91,46,.24);
  min-width:132px;
}
.kpi b{font-size:24px;font-weight:700;color:var(--c-main);font-variant-numeric:tabular-nums;line-height:1.2}
.kpi span{font-size:12px;color:var(--t3)}

/* ---------- 表单 ---------- */
.form-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px;max-width:620px}
.field{flex:1 1 260px;min-width:0}
.field input{
  width:100%;height:52px;padding:0 18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xs);
  font-size:15px;color:var(--t1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input::placeholder{color:var(--t3)}
.field input:focus{outline:none;border-color:var(--c-main);box-shadow:0 0 0 4px rgba(255,91,46,.14)}
.form-note{margin:12px 0 0;font-size:13px;color:var(--t3);line-height:1.7}
.form-note.ok{color:var(--c-sub);font-weight:600}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:52px;padding:0 28px;border-radius:var(--r-pill);
  font-size:16px;font-weight:600;white-space:nowrap;
  border:1.5px solid transparent;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease);
}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.btn-primary{
  background-image:linear-gradient(135deg,#FF7A3D 0%,#FF3D6E 100%);
  background-size:150% 150%;background-position:0 0;
  color:#fff;box-shadow:0 12px 26px rgba(255,61,110,.26);
}
.btn-primary:hover{color:#fff;background-position:100% 0;transform:translateY(-4px);box-shadow:0 20px 36px rgba(255,61,110,.32)}
.btn-ghost{border-color:var(--c-main);color:var(--c-main);background:transparent}
.btn-ghost:hover{background:var(--tint);color:var(--c-main);transform:translateY(-4px)}
.btn-sm{height:46px;padding:0 22px;font-size:15px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--c-main)}
.link-arrow svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- FAQ ---------- */
.faq-wrap{padding-bottom:88px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:10px}
.section-head p{margin:8px 0 0;font-size:15px;color:var(--t3)}
.faq{border-top:1px solid var(--line);margin-top:26px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:64px;padding:14px 4px;
  font-size:17px;font-weight:600;color:var(--t1);
  list-style:none;cursor:pointer;
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-main)}
.faq-icon{position:relative;width:22px;height:22px;flex:0 0 22px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-main);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.faq-icon::before{left:50%;top:3px;bottom:3px;width:2px;transform:translateX(-50%)}
.faq-icon::after{top:50%;left:3px;right:3px;height:2px;transform:translateY(-50%)}
.faq-item[open] .faq-icon::before{transform:translateX(-50%) rotate(90deg);opacity:0}
.faq-body{max-width:720px;padding:0 4px 22px;font-size:16px;line-height:1.8;color:var(--t2)}

/* ---------- CTA ---------- */
.cta-band{
  border-radius:var(--r-xl);
  background-image:linear-gradient(135deg,#FF7A3D 0%,#FF3D6E 100%);
  padding:44px;
  display:grid;grid-template-columns:1.3fr 1fr;gap:32px;align-items:center;
  box-shadow:0 26px 54px rgba(255,61,110,.22);
  margin-bottom:88px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:rgba(255,255,255,.12);pointer-events:none;
}
.cta-band h2{color:#fff;font-size:30px}
.cta-band p{color:rgba(255,255,255,.92);margin:12px 0 0;font-size:15px;line-height:1.75;max-width:560px}
.cta-actions{display:flex;flex-direction:column;gap:12px;position:relative;z-index:2}
.cta-actions .btn{width:100%}
.btn-white{background:#fff;color:var(--c-main);box-shadow:0 14px 30px rgba(0,0,0,.14)}
.btn-white:hover{color:var(--c-main);transform:translateY(-4px);box-shadow:0 20px 40px rgba(0,0,0,.2)}
.btn-line{border-color:rgba(255,255,255,.7);color:#fff}
.btn-line:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-4px)}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink);color:#C9CDD4;padding:72px 0 28px;margin-top:auto}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px}
.footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer p{font-size:14px;line-height:1.85;color:#C9CDD4;margin:0}
.footer-links{display:flex;flex-direction:column}
.footer-links a{display:block;color:#C9CDD4;font-size:15px;padding:6px 0;transition:color .2s var(--ease)}
.footer-links a:hover{color:var(--c-hl)}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{flex:0 0 36px;width:36px;height:36px;border-radius:12px;background:var(--grad-main);display:flex;align-items:center;justify-content:center}
.footer-brand .brand-mark svg{width:20px;height:20px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.footer-brand-text strong{display:block;color:#fff;font-size:17px;font-weight:700}
.footer-brand-text em{font-style:normal;font-size:12px;color:var(--c-hl);letter-spacing:.06em}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  margin-top:48px;padding-top:22px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8A8F98;
}
.footer-bottom .links{display:flex;gap:16px;flex-wrap:wrap}
.footer-bottom .links a{color:#8A8F98}
.footer-bottom .links a:hover{color:var(--c-hl)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  h1{font-size:44px}
  .cat-banner h1{font-size:34px}
  .container{padding:0 32px}
  .cta-band h2{font-size:26px}
}
@media (max-width:1023px){
  :root{--sb:0px}
  .sidebar{
    transform:translateX(-105%);
    width:280px;padding:20px 16px;box-shadow:var(--sh-2);
    transition:transform .3s var(--ease);
  }
  .sidebar.is-open{transform:translateX(0);width:280px}
  .sidebar .brand-text,.sidebar .nav-label,.sidebar .sidebar-note{opacity:1;transform:none}
  .sidebar .sidebar-cta{padding:0 16px;width:100%;border-radius:var(--r-pill)}
  .sidebar .sidebar-cta span{display:inline}
  .sidebar-note{text-align:left}
  .content{margin-left:0;padding-top:64px}
  .mobile-header{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    position:fixed;top:0;left:0;right:0;height:64px;padding:0 18px;
    background:rgba(255,255,255,.94);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
    z-index:90;
  }
  .mobile-header .brand{padding:0;border:0;min-height:auto}
  .mobile-header .brand-text{opacity:1;transform:none}
  .menu-toggle{
    width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
    display:flex;align-items:center;justify-content:center;background:#fff;
  }
  .menu-toggle svg{width:22px;height:22px;fill:none;stroke:var(--t1);stroke-width:1.9;stroke-linecap:round}
  .mobile-mask{display:block;position:fixed;inset:0;background:rgba(22,24,29,.42);opacity:0;pointer-events:none;transition:opacity .3s var(--ease);z-index:70}
  .mobile-mask.is-open{opacity:1;pointer-events:auto}
  .cat-banner{min-height:220px}
  .cat-layout{grid-template-columns:1fr;gap:20px;padding-top:26px}
  .toc{position:static}
  .toc-box{display:flex;gap:10px;overflow-x:auto;padding:14px;-webkit-overflow-scrolling:touch}
  .toc-title{display:none}
  .toc-link{white-space:nowrap;background:var(--surface-2)}
  .toc-hint{display:none}
  .cta-band{grid-template-columns:1fr;padding:32px;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cat-layout{padding-bottom:80px}
}
@media (max-width:767px){
  body{font-size:16px}
  h1{font-size:32px}
  h2{font-size:26px}
  .container{padding:0 20px}
  .cat-banner h1{font-size:27px}
  .banner-sub{font-size:14px}
  .cat-banner .container{padding-top:34px;padding-bottom:34px}
  .block-card{padding:22px;border-radius:var(--r-sm)}
  .block-card h2{font-size:22px}
  .data-row{grid-template-columns:1fr 1fr;gap:6px 12px;padding:12px 14px;font-size:14px}
  .data-row .s{justify-self:start}
  .data-row.head{display:none}
  .kpi{min-width:0;flex:1 1 calc(50% - 6px);padding:10px 14px}
  .kpi b{font-size:20px}
  .btn{height:48px;padding:0 22px;font-size:15px}
  .cta-band{padding:26px;border-radius:24px;margin-bottom:60px}
  .cta-band h2{font-size:22px}
  .faq-item summary{min-height:56px;font-size:16px}
  .footer{padding:56px 0 24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .faq-wrap{padding-bottom:60px}
  .cat-layout{padding-bottom:60px}
}
@media (max-width:479px){
  .kpi{flex:1 1 100%}
  .cat-banner h1{font-size:24px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .btn:hover,.nav-item:hover,.toc-link:hover{transform:none !important}
}

/* roulang page: category2 */
:root{
  --c-main:#FF5B2E;
  --c-main-2:#FF3D6E;
  --c-sub:#0E9F6E;
  --c-sub-2:#35D0A5;
  --c-hl:#FFC53D;
  --bg:#FFF7F1;
  --surface:#FFFFFF;
  --surface-2:#FDF1E7;
  --ink:#16181D;
  --t1:#16181D;
  --t2:#4A4F58;
  --t3:#8A8F98;
  --line:#EFE4DA;
  --line-hover:rgba(255,91,46,.32);
  --grad:linear-gradient(135deg,#FF7A3D 0%,#FF3D6E 100%);
  --grad-sub:linear-gradient(135deg,#0E9F6E,#35D0A5);
  --r-lg:28px;
  --r-md:22px;
  --r-sm:18px;
  --r-pill:999px;
  --sh-1:0 10px 28px rgba(22,24,29,.07);
  --sh-2:0 20px 46px rgba(22,24,29,.13);
  --ease:cubic-bezier(.22,.61,.36,1);
  --side:92px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,p,ul,ol,figure,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
svg{display:block}
body{
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
  background:var(--bg);
  color:var(--t2);
  font-size:17px;
  line-height:1.8;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
:focus-visible{outline:2px solid var(--c-main);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 48px}

/* ============ 侧边导航 ============ */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:var(--side);
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;gap:26px;
  padding:22px 14px;
  z-index:80;
  overflow:hidden;
  transition:width .3s var(--ease),box-shadow .3s var(--ease);
}
.sidebar:hover,.sidebar:focus-within{width:240px;box-shadow:var(--sh-2)}

.side-brand{display:flex;align-items:center;gap:12px;min-height:44px;padding:0 4px}
.side-mark{
  width:44px;height:44px;flex:none;border-radius:14px;
  background:var(--grad);color:#fff;
  display:grid;place-items:center;
}
.side-mark svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.side-text{display:flex;flex-direction:column;line-height:1.25;white-space:nowrap;opacity:0;transform:translateX(-8px);transition:opacity .25s var(--ease),transform .25s var(--ease)}
.side-text strong{font-size:16px;font-weight:800;color:var(--t1)}
.side-text em{font-style:normal;font-size:12px;color:var(--t3)}
.sidebar:hover .side-text,.sidebar:focus-within .side-text{opacity:1;transform:none}

.nav-list{display:flex;flex-direction:column;gap:6px;flex:1}
.nav-item{
  position:relative;display:flex;align-items:center;gap:14px;
  height:48px;padding:0 12px;border-radius:14px;
  color:var(--t2);white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.nav-item svg{width:24px;height:24px;flex:none;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.nav-label{font-size:15px;font-weight:600;opacity:0;transform:translateX(-6px);transition:opacity .25s var(--ease),transform .25s var(--ease)}
.sidebar:hover .nav-label,.sidebar:focus-within .nav-label{opacity:1;transform:none}
.nav-item:hover{background:#FFF1E9;color:var(--c-main)}
.nav-item.is-active{background:#FFF1E9;color:var(--c-main)}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:24px;border-radius:0 4px 4px 0;background:var(--c-main);
}

.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.side-cta{
  display:flex;align-items:center;justify-content:center;gap:12px;
  height:48px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--grad);color:#fff;font-size:14px;font-weight:700;
  overflow:hidden;white-space:nowrap;
  transition:box-shadow .22s var(--ease),background-position .3s var(--ease);
}
.side-cta svg{width:20px;height:20px;flex:none;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.side-cta span{max-width:0;opacity:0;overflow:hidden;transition:max-width .28s var(--ease),opacity .28s var(--ease)}
.sidebar:hover .side-cta span,.sidebar:focus-within .side-cta span{max-width:150px;opacity:1}
.side-cta:hover{box-shadow:0 14px 30px rgba(255,61,110,.3)}
.side-note{font-size:12px;color:var(--t3);white-space:nowrap;opacity:0;transform:translateX(-6px);transition:opacity .25s var(--ease),transform .25s var(--ease);padding-left:4px}
.sidebar:hover .side-note,.sidebar:focus-within .side-note{opacity:1;transform:none}

/* ============ 移动端顶栏与抽屉 ============ */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:90;
  align-items:center;justify-content:space-between;padding:0 20px;
  background:rgba(255,247,241,.94);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.topbar-brand{display:flex;align-items:center;gap:10px}
.topbar-brand .side-mark{width:38px;height:38px;border-radius:12px}
.topbar-brand .side-mark svg{width:21px;height:21px}
.topbar-brand-text{display:flex;flex-direction:column;line-height:1.2}
.topbar-brand-text strong{font-size:15px;font-weight:800;color:var(--t1)}
.topbar-brand-text em{font-style:normal;font-size:11px;color:var(--t3)}
.burger{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--t1);background:var(--surface);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.burger:hover{border-color:var(--line-hover);color:var(--c-main)}
.burger svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round}

.drawer{
  position:fixed;left:0;right:0;top:64px;bottom:0;z-index:85;
  background:var(--bg);padding:22px 20px 32px;
  display:none;flex-direction:column;gap:8px;overflow-y:auto;
}
.drawer.is-open{display:flex}
.drawer .nav-item{height:56px;border-radius:16px;color:var(--t1)}
.drawer .nav-item .nav-label{opacity:1;transform:none;font-size:17px}
.drawer-foot{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.drawer-foot .side-cta{height:52px;font-size:15px}
.drawer-foot .side-cta span{max-width:200px;opacity:1}
.drawer-foot .side-note{opacity:1;transform:none;text-align:center}
body.no-scroll{overflow:hidden}

/* ============ 页面结构 ============ */
.page{margin-left:var(--side);min-height:100vh;display:flex;flex-direction:column}
main{flex:1}

/* ============ 内页 banner ============ */
.page-header{
  position:relative;min-height:260px;
  display:flex;align-items:flex-end;
  padding:48px 0 38px;
  color:#fff;border-radius:0 0 32px 32px;
  background-image:linear-gradient(135deg,rgba(14,159,110,.94) 0%,rgba(8,86,63,.88) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover,cover;
  background-position:center,center;
  background-repeat:no-repeat,no-repeat;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.82);margin-bottom:16px}
.breadcrumb a{transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--c-hl)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:var(--c-hl);font-weight:600}
.page-header h1{
  font-size:clamp(30px,4vw,44px);font-weight:800;line-height:1.18;color:#fff;
  max-width:860px;letter-spacing:0;
}
.page-header .lead{margin-top:16px;font-size:15px;color:rgba(255,255,255,.88);max-width:700px}

/* ============ 板块 ============ */
.section{padding:104px 0}
.section.tight{padding-top:0}
.section-head{max-width:780px;margin-bottom:20px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--c-sub);
  background:#E9F7F1;border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:16px;
}
.section-head h2{font-size:36px;font-weight:700;line-height:1.25;color:var(--t1);letter-spacing:0}
.section-head p{margin-top:20px;font-size:17px;color:var(--t2);max-width:700px}

/* ============ 通栏大卡 ============ */
.feature{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:36px;
  display:grid;
  grid-template-columns:1.02fr .98fr;
  gap:44px;
  align-items:center;
  transition:box-shadow .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
}
.feature:hover{box-shadow:var(--sh-2);transform:translateY(-4px);border-color:var(--line-hover)}
.feature + .feature{margin-top:28px}
.feature.reverse .feature-media{order:-1}
.feature-media{
  border-radius:20px;overflow:hidden;background:var(--surface-2);
  aspect-ratio:16/9;
}
.feature-media img{width:100%;height:100%;object-fit:cover}
.feature-body h3{font-size:24px;font-weight:700;color:var(--t1);line-height:1.35}
.feature-body h3 + p{margin-top:16px}
.feature-body p{font-size:17px;color:var(--t2);max-width:680px}

/* ============ 步骤 / 清单 ============ */
.steps{margin-top:24px;display:flex;flex-direction:column;gap:14px;counter-reset:s}
.steps li{position:relative;padding-left:46px;font-size:16px;color:var(--t2);min-height:32px;display:flex;align-items:center}
.steps li::before{
  counter-increment:s;content:counter(s);
  position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:32px;height:32px;border-radius:50%;
  background:var(--grad);color:#fff;font-size:14px;font-weight:700;
  display:grid;place-items:center;font-variant-numeric:tabular-nums;
}
.checklist{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.checklist li{position:relative;padding-left:26px;font-size:16px;color:var(--t2)}
.checklist li::before{
  content:"";position:absolute;left:6px;top:.75em;
  width:8px;height:8px;border-radius:50%;background:var(--c-main);
}

/* ============ 数据徽章 ============ */
.badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.badge{
  display:inline-flex;align-items:baseline;gap:6px;
  background:#FFF1E9;border:1px solid rgba(255,91,46,.24);
  border-radius:var(--r-pill);padding:9px 18px;
}
.badge b{font-size:22px;font-weight:700;color:var(--c-main);font-variant-numeric:tabular-nums;line-height:1}
.badge span{font-size:12px;color:var(--t3)}
.badges.sub .badge{background:#E9F7F1;border-color:rgba(14,159,110,.24)}
.badges.sub .badge b{color:var(--c-sub)}

/* ============ 快捷入口 ============ */
.pill-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 22px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);
  font-size:15px;font-weight:600;color:var(--t1);
  transition:border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.pill svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.pill:hover{border-color:var(--line-hover);color:var(--c-main);transform:translateY(-2px);box-shadow:var(--sh-1)}

/* ============ FAQ ============ */
.faq{display:flex;flex-direction:column;border-top:1px solid var(--line);margin-top:12px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:64px;padding:12px 0;
  font-size:17px;font-weight:600;color:var(--t1);
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-main)}
.faq-item summary::after{
  content:"+";font-size:24px;font-weight:400;color:var(--c-main);
  flex:none;transition:transform .2s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-answer{max-width:720px;padding-bottom:22px;font-size:16px;line-height:1.8;color:var(--t2)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:52px;padding:0 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;transition:transform .22s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn-light{background:#fff;color:var(--c-main)}
.btn-light:hover{box-shadow:0 14px 30px rgba(22,24,29,.18);transform:translateY(-2px)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.72);color:#fff;background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}
.btn-primary{background:var(--grad);background-size:140% 100%;color:#fff}
.btn-primary:hover{background-position:12% 0;box-shadow:0 16px 34px rgba(255,61,110,.3);transform:translateY(-2px);color:#fff}

/* ============ CTA ============ */
.cta-band{
  background:var(--grad);
  border-radius:32px;
  padding:44px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  color:#fff;
  box-shadow:0 20px 46px rgba(255,61,110,.22);
}
.cta-band h2{font-size:30px;font-weight:800;color:#fff;line-height:1.3}
.cta-band p{margin-top:12px;font-size:16px;color:rgba(255,255,255,.9);max-width:540px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:none}

/* ============ 页脚 ============ */
.footer{background:var(--ink);color:#C9CDD4;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:18px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.brand-mark{width:44px;height:44px;flex:none;border-radius:14px;background:var(--grad);color:#fff;display:grid;place-items:center}
.brand-mark svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.footer-brand-text{display:flex;flex-direction:column;line-height:1.25}
.footer-brand-text strong{color:#fff;font-size:16px;font-weight:800}
.footer-brand-text em{font-style:normal;font-size:12px;color:#8A8F98}
.footer p{font-size:14px;line-height:1.85;color:#A9AEB6;max-width:320px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14px;color:#C9CDD4;transition:color .2s var(--ease)}
.footer-links a:hover{color:var(--c-hl)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8A8F98;
}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom a{transition:color .2s var(--ease)}
.footer-bottom a:hover{color:var(--c-hl)}

/* ============ 断点 ============ */
@media (max-width:1279px){
  .container{padding:0 32px}
  .feature{gap:32px;padding:32px}
  .section{padding:88px 0}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .topbar{display:flex}
  .page{margin-left:0;padding-top:64px}
  .section{padding:80px 0}
  .section-head h2{font-size:30px}
  .page-header{border-radius:0 0 24px 24px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:60px 0}
  .page-header{min-height:200px;padding:38px 0 30px}
  .page-header .lead{font-size:14px}
  .section-head h2{font-size:26px}
  .section-head p{font-size:16px}
  .feature{grid-template-columns:1fr;gap:24px;padding:24px;border-radius:var(--r-md)}
  .feature.reverse .feature-media{order:0}
  .feature-body h3{font-size:20px}
  .feature-body p{font-size:16px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px;border-radius:26px}
  .cta-band h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px}
  .footer{padding-top:56px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .page-header h1{font-size:30px}
  .badge b{font-size:20px}
  .badge{padding:8px 14px}
  .badge span{font-size:11px}
  .btn{height:48px;padding:0 22px;font-size:14px}
  .btn:hover{transform:none}
  .feature:hover{transform:none}
  .steps li{padding-left:42px;font-size:15px}
  .faq-item summary{min-height:56px;font-size:16px;gap:14px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .feature:hover,.pill:hover,.btn:hover,.btn:hover svg{transform:none}
  html{scroll-behavior:auto}
}