/* roulang page: index */
:root{
  --teal:#12B8A6;
  --teal-soft:#5CD6B0;
  --coral:#FF6A3D;
  --lime:#C9F26B;
  --ink:#191426;
  --ink-soft:#332B44;
  --muted:#6B6478;
  --paper:#F7F4EE;
  --card:#FFFFFF;
  --panel:#EEF7F2;
  --line:#E5DED3;
  --hair:rgba(25,20,38,.07);
  --grad:linear-gradient(120deg,#12B8A6 0%,#5CD6B0 48%,#FFB36B 100%);
  --radius-lg:28px;
  --radius:22px;
  --radius-sm:16px;
  --shadow:0 18px 50px rgba(25,20,38,.08);
  --shadow-hover:0 24px 64px rgba(25,20,38,.12);
  --ease:180ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:17px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--teal);}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(18,184,166,.45);outline-offset:3px;border-radius:6px;}
.wrap{max-width:1240px;margin:0 auto;padding:0 24px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:80;
  background:rgba(247,244,238,.94);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-row{display:flex;align-items:center;justify-content:space-between;gap:28px;height:84px;}
.brand{display:flex;flex-direction:column;line-height:1.14;gap:2px;}
.brand-top{font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--ink);}
.brand-sub{font-size:12px;font-weight:600;letter-spacing:.16em;color:var(--muted);}
.brand:hover .brand-sub{color:var(--teal);}
.nav-links{display:flex;align-items:center;gap:34px;}
.nav-links a{font-size:15px;color:var(--ink-soft);padding:6px 0;position:relative;transition:color var(--ease);}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--ink);font-weight:700;}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 22px;border-radius:999px;
  border:1px solid var(--ink);font-size:14px;font-weight:700;color:var(--ink);
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.nav-cta:hover{background:var(--ink);color:var(--paper);transform:translateY(-1px);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:14px;
  background:var(--card);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;transition:var(--ease);}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{top:0;transform:rotate(45deg);}
.nav-toggle.is-open span::after{top:0;transform:rotate(-45deg);}
.nav-drawer{
  display:none;border-top:1px solid var(--line);background:var(--paper);
  padding:14px 24px 26px;
}
.nav-drawer.is-open{display:block;}
.nav-drawer a{
  display:flex;align-items:center;gap:10px;
  padding:15px 4px;font-size:17px;font-weight:600;color:var(--ink-soft);
  border-bottom:1px solid var(--hair);
}
.nav-drawer a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--line);transition:var(--ease);}
.nav-drawer a.is-active{color:var(--ink);font-weight:800;}
.nav-drawer a.is-active::before{background:var(--grad);}
.nav-drawer .drawer-cta{margin-top:18px;border-bottom:0;}
.nav-drawer .drawer-cta a{
  justify-content:center;border:1px solid var(--ink);border-radius:999px;font-size:15px;
}
.nav-drawer .drawer-cta a::before{display:none;}

/* ---------- generic ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--teal);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:999px;border:0;cursor:pointer;
  font-size:15px;font-weight:700;color:var(--ink);
  background:var(--grad);
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease);
  box-shadow:0 10px 26px rgba(18,184,166,.24);
}
.btn:hover{transform:translateY(-2px);filter:brightness(.97);box-shadow:0 16px 34px rgba(18,184,166,.3);color:var(--ink);}
.btn:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;border:1px solid var(--ink);box-shadow:none;color:var(--ink);
}
.btn-ghost:hover{background:var(--ink);color:var(--paper);box-shadow:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--ink);
  border-bottom:1px solid transparent;padding-bottom:2px;transition:var(--ease);
}
.link-arrow svg{transition:transform var(--ease);}
.link-arrow:hover{color:var(--teal);border-bottom-color:var(--teal);}
.link-arrow:hover svg{transform:translateX(4px);}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:700;
  background:rgba(18,184,166,.11);color:#0B8577;letter-spacing:.02em;
}
.tag-warm{background:rgba(255,106,61,.12);color:#C6441E;}
.badge{
  display:inline-flex;align-items:center;gap:10px;
  padding:10px 18px;border-radius:999px;background:var(--panel);
  border:1px solid var(--hair);
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--grad);}
.badge .num{font-size:26px;font-weight:800;letter-spacing:-.02em;line-height:1;}
.badge .txt{font-size:12.5px;color:var(--muted);line-height:1.4;}
.section{padding:92px 0;}
.section-alt{background:var(--panel);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:46px;flex-wrap:wrap;
}
.section-head h2{font-size:clamp(28px,3.2vw,40px);font-weight:800;letter-spacing:-.02em;line-height:1.24;}
.section-head p{margin-top:12px;color:var(--muted);font-size:16px;max-width:600px;}
.card{
  background:var(--card);border:1px solid var(--hair);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:30px;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(18,184,166,.42);}
.card h3{font-size:21px;font-weight:800;letter-spacing:-.01em;line-height:1.4;}
.card p{margin-top:10px;color:var(--muted);font-size:15px;line-height:1.78;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.icon-box{
  width:48px;height:48px;border-radius:16px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--panel);color:var(--teal);margin-bottom:18px;
}
.icon-box svg{width:22px;height:22px;}

/* ---------- hero ---------- */
.hero{padding:74px 0 84px;position:relative;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero h1{
  font-size:clamp(34px,4.4vw,58px);
  font-weight:800;letter-spacing:-.025em;line-height:1.16;margin:18px 0 20px;
}
.hero h1 em{font-style:normal;color:var(--teal);}
.hero .lead{font-size:17px;line-height:1.85;color:var(--muted);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-visual{position:relative;}
.hero-frame{
  padding:8px;border-radius:32px;background:var(--grad);
  box-shadow:0 26px 60px rgba(25,20,38,.16);
}
.hero-frame img{width:100%;aspect-ratio:4/3.3;object-fit:cover;border-radius:26px;}
.float-badge{
  position:absolute;left:-14px;bottom:-18px;
  display:flex;align-items:center;gap:12px;
  background:var(--card);border:1px solid var(--hair);border-radius:999px;
  padding:10px 20px 10px 12px;box-shadow:var(--shadow);
}
.float-badge .pill-num{
  width:44px;height:44px;border-radius:50%;background:var(--grad);color:var(--ink);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;
}
.float-badge .pill-txt{font-size:13px;color:var(--muted);line-height:1.35;}
.float-badge .pill-txt strong{display:block;color:var(--ink);font-size:14px;}
.float-tag{position:absolute;right:18px;top:18px;background:rgba(255,255,255,.92);backdrop-filter:blur(6px);box-shadow:0 8px 20px rgba(25,20,38,.12);}

/* ---------- statbar ---------- */
.statbar-wrap{padding-bottom:8px;}
.statbar{
  background:var(--card);border:1px solid var(--hair);border-radius:var(--radius);
  box-shadow:var(--shadow);display:grid;grid-template-columns:repeat(4,1fr);
  overflow:hidden;
}
.statbar .stat{padding:28px 26px;border-right:1px solid var(--hair);}
.statbar .stat:last-child{border-right:0;}
.statbar .stat .num{font-size:32px;font-weight:800;letter-spacing:-.02em;line-height:1;}
.statbar .stat .num small{font-size:14px;font-weight:700;color:var(--muted);margin-left:4px;}
.statbar .stat .lbl{margin-top:10px;font-size:13.5px;color:var(--muted);line-height:1.6;}

/* ---------- bento ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.bento .span-7{grid-column:span 7;}
.bento .span-5{grid-column:span 5;}
.bento .span-6{grid-column:span 6;}
.card-lg{padding:36px;display:flex;flex-direction:column;gap:16px;position:relative;overflow:hidden;}
.card-lg .big-line{font-size:26px;font-weight:800;letter-spacing:-.02em;line-height:1.38;}
.card-lg .cover{
  margin-top:auto;border-radius:18px;overflow:hidden;
}
.card-lg .cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 320ms ease;}
.card-lg:hover .cover img{transform:scale(1.03);}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}

/* ---------- scenes ---------- */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;padding:48px 0;}
.scene + .scene{border-top:1px solid var(--hair);}
.scene.rev .scene-media{order:2;}
.scene-num{
  font-size:14px;font-weight:800;letter-spacing:.16em;color:var(--teal);
}
.scene h3{font-size:clamp(22px,2.4vw,30px);font-weight:800;letter-spacing:-.02em;line-height:1.35;margin:12px 0 14px;}
.scene p{color:var(--muted);font-size:16px;line-height:1.85;}
.scene-list{margin-top:20px;display:grid;gap:10px;}
.scene-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-soft);}
.scene-list li::before{
  content:"";flex:0 0 auto;width:7px;height:7px;border-radius:50%;background:var(--grad);margin-top:11px;
}
.scene-media{border-radius:24px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--hair);}
.scene-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 320ms ease;}
.scene-media:hover img{transform:scale(1.03);}

/* ---------- news list ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
.news-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--hair);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(18,184,166,.42);color:inherit;}
.news-thumb{overflow:hidden;}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 320ms ease;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);}
.news-body h3{font-size:20px;font-weight:800;line-height:1.45;letter-spacing:-.01em;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body p{font-size:14.5px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{margin-top:auto;padding-top:12px;display:flex;justify-content:flex-end;}
.empty-card{
  border:1.5px dashed var(--line);border-radius:var(--radius);background:rgba(255,255,255,.6);
  padding:56px 28px;text-align:center;grid-column:1/-1;color:var(--muted);
}
.empty-card svg{width:34px;height:34px;color:var(--teal);margin:0 auto 14px;}
.empty-card p{font-size:15px;}

/* ---------- mosaic ---------- */
.mosaic{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.mosaic .m-big{grid-column:span 8;}
.mosaic .m-small{grid-column:span 4;}
.mosaic .m-card{
  background:var(--card);border:1px solid var(--hair);border-radius:var(--radius);
  padding:32px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:14px;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.mosaic .m-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(18,184,166,.42);}
.mosaic .m-card h3{font-size:21px;font-weight:800;line-height:1.42;}
.mosaic .m-card p{font-size:15px;color:var(--muted);line-height:1.8;}
.m-card.m-big{background:var(--panel);}
.m-card.m-big .m-cover{border-radius:16px;overflow:hidden;margin-bottom:6px;}
.m-card.m-big .m-cover img{width:100%;aspect-ratio:16/8;object-fit:cover;}

/* ---------- plans ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.plan{
  position:relative;overflow:hidden;background:var(--card);border:1px solid var(--hair);
  border-radius:var(--radius);padding:34px 30px;box-shadow:var(--shadow);
  display:flex;flex-direction:column;gap:16px;
  transition:transform var(--ease),box-shadow var(--ease);
}
.plan:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.plan.is-featured{background:var(--panel);border-color:rgba(18,184,166,.35);}
.plan.is-featured::before{content:"";position:absolute;inset:0 0 auto 0;height:5px;background:var(--grad);}
.plan .plan-name{font-size:19px;font-weight:800;letter-spacing:-.01em;}
.plan .plan-price{font-size:30px;font-weight:800;letter-spacing:-.02em;line-height:1.1;}
.plan .plan-price small{display:block;font-size:13px;font-weight:600;color:var(--muted);letter-spacing:0;margin-top:6px;}
.plan ul{display:grid;gap:10px;margin-top:4px;}
.plan ul li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-soft);line-height:1.7;}
.plan ul li::before{content:"";flex:0 0 auto;width:16px;height:16px;border-radius:50%;background:rgba(18,184,166,.16);margin-top:6px;
  box-shadow:inset 0 0 0 2px var(--teal);}
.plan .plan-btn{margin-top:auto;}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:.82fr 1.18fr;gap:56px;align-items:start;}
.faq-aside p{color:var(--muted);font-size:16px;line-height:1.85;margin-top:14px;}
.faq-aside .aside-badge{margin-top:26px;}
.faq-list{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:flex-start;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:18px;font-weight:700;line-height:1.6;color:var(--ink);
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--teal);}
.faq-plus{
  flex:0 0 auto;width:24px;height:24px;position:relative;margin-top:4px;
  transition:transform 200ms ease;color:var(--teal);
}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
}
.faq-plus::before{width:14px;height:2px;transform:translate(-50%,-50%);}
.faq-plus::after{width:2px;height:14px;transform:translate(-50%,-50%);}
.faq-item[open] .faq-plus{transform:rotate(45deg);}
.faq-answer{padding:0 0 24px;font-size:15px;line-height:1.9;color:var(--muted);max-width:680px;}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink);color:#F4F1EA;
  border-radius:32px;padding:64px 56px;
}
.cta-band::before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:var(--grad);}
.cta-band h2{font-size:clamp(26px,3vw,36px);font-weight:800;letter-spacing:-.02em;line-height:1.35;}
.cta-band p{margin-top:14px;font-size:16px;line-height:1.85;color:rgba(244,241,234,.76);max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:22px;margin-top:32px;}
.cta-actions .btn{box-shadow:0 14px 34px rgba(18,184,166,.3);}
.cta-actions .link-ghost{color:#F4F1EA;font-size:15px;font-weight:600;border-bottom:1px solid rgba(244,241,234,.4);padding-bottom:2px;}
.cta-actions .link-ghost:hover{color:var(--teal-soft);border-bottom-color:var(--teal-soft);}

/* ---------- footer ---------- */
.site-foot{background:var(--ink);color:#CFC9DA;padding:72px 0 30px;margin-top:96px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;}
.foot-brand .fb-top{font-size:19px;font-weight:800;letter-spacing:-.02em;color:#F7F4EE;}
.foot-brand .fb-sub{font-size:12px;letter-spacing:.16em;color:rgba(207,201,218,.7);margin-top:4px;}
.foot-brand p{margin-top:18px;font-size:14px;line-height:1.9;color:rgba(207,201,218,.75);max-width:320px;}
.foot-col h4{font-size:14px;font-weight:800;letter-spacing:.08em;color:#F7F4EE;margin-bottom:18px;}
.foot-col ul{display:grid;gap:10px;}
.foot-col a{font-size:14px;color:rgba(207,201,218,.82);transition:color var(--ease);}
.foot-col a:hover{color:var(--teal-soft);}
.foot-col p{font-size:14px;line-height:1.9;color:rgba(207,201,218,.75);}
.foot-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(207,201,218,.62);
}
.foot-bottom .domain{letter-spacing:.04em;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .hero{padding:56px 0 70px;}
  .hero-grid{gap:40px;}
  .section{padding:78px 0;}
  .nav-links{gap:24px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero .lead{max-width:none;}
  .hero-visual{max-width:620px;}
  .bento .span-7,.bento .span-5,.bento .span-6{grid-column:span 12;}
  .scene{grid-template-columns:1fr;gap:28px;padding:40px 0;}
  .scene.rev .scene-media{order:0;}
  .faq-wrap{grid-template-columns:1fr;gap:34px;}
  .mosaic .m-big,.mosaic .m-small{grid-column:span 12;}
  .plans{grid-template-columns:1fr;}
  .statbar{grid-template-columns:repeat(2,1fr);}
  .statbar .stat:nth-child(2){border-right:0;}
  .statbar .stat:nth-child(1),.statbar .stat:nth-child(2){border-bottom:1px solid var(--hair);}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .cta-band{padding:48px 34px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .wrap{padding:0 20px;}
  .nav-row{height:64px;}
  .brand-top{font-size:17px;}
  .brand-sub{font-size:11px;letter-spacing:.12em;}
  .hero{padding:44px 0 56px;}
  .hero h1{font-size:clamp(30px,8vw,40px);}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .news-grid{grid-template-columns:1fr;}
  .card,.card-lg,.mosaic .m-card,.plan{padding:24px;}
  .float-badge{left:0;bottom:-16px;padding:8px 16px 8px 10px;}
  .float-badge .pill-num{width:38px;height:38px;font-size:16px;}
  .statbar .stat{padding:22px 18px;}
  .statbar .stat .num{font-size:26px;}
  .cta-band{padding:40px 24px;border-radius:24px;}
  .cta-actions{gap:16px;}
  .foot-grid{grid-template-columns:1fr;gap:32px;}
  .site-foot{margin-top:64px;padding:56px 0 26px;}
  .faq-item summary{font-size:17px;padding:18px 0;}
  .btn{height:48px;}
}
@media (max-width:519px){
  .hero-badges .badge{padding:8px 14px;}
  .badge .num{font-size:22px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .scene h3{font-size:22px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
}

/* roulang page: article */
:root{
  --teal:#12B8A6;
  --coral:#FF6A3D;
  --lime:#C9F26B;
  --ink:#191426;
  --sand:#F7F4EE;
  --card:#FFFFFF;
  --panel:#EEF7F2;
  --line:#E5DED3;
  --muted:#6B6478;
  --soft:#8C8598;
  --grad:linear-gradient(120deg,#12B8A6 0%,#5CD6B0 48%,#FFB36B 100%);
  --r-lg:28px;
  --r-md:22px;
  --r-sm:16px;
  --shadow:0 18px 50px rgba(25,20,38,.08);
  --shadow-hover:0 24px 64px rgba(25,20,38,.12);
  --wrap:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.78;
  color:var(--ink);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6{
  font-family:inherit;
  color:var(--ink);
  margin:0;
  line-height:1.28;
  font-weight:700;
  letter-spacing:-.02em;
}
p{margin:0;}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--teal);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:rgba(18,184,166,.22);}
:focus-visible{outline:3px solid rgba(18,184,166,.35);outline-offset:3px;border-radius:6px;}

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

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,238,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.head-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;height:82px;}
.brand{display:flex;flex-direction:column;line-height:1.05;letter-spacing:-.02em;}
.brand-top{font-size:19px;font-weight:800;color:var(--ink);}
.brand-sub{font-size:12.5px;font-weight:600;color:var(--muted);letter-spacing:.14em;margin-top:4px;}
.brand:hover .brand-top{color:var(--teal);}
.nav-links{display:flex;align-items:center;gap:32px;}
.nav-links a{
  position:relative;font-size:14.5px;font-weight:500;color:var(--ink);
  padding:6px 0;transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--grad);border-radius:2px;opacity:0;transform:scaleX(.4);
  transform-origin:left;transition:opacity .22s ease,transform .22s ease;
}
.nav-links a:hover{color:var(--teal);}
.nav-links a:hover::after{opacity:1;transform:scaleX(1);}
.nav-links a.is-active{color:var(--ink);font-weight:700;}
.nav-links a.is-active::after{opacity:1;transform:scaleX(1);}
.head-actions{display:flex;align-items:center;gap:12px;}
.btn-ghost-sm{
  display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 20px;border-radius:999px;
  border:1px solid rgba(25,20,38,.24);font-size:14px;font-weight:600;color:var(--ink);
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-ghost-sm:hover{background:var(--ink);color:var(--sand);border-color:var(--ink);transform:translateY(-1px);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  background:var(--card);border-radius:12px;cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- buttons ---------- */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:999px;
  background:var(--grad);color:var(--ink);font-weight:700;font-size:15.5px;
  border:0;cursor:pointer;
  transition:filter .2s ease,transform .2s ease,box-shadow .2s ease;
  box-shadow:0 12px 28px rgba(18,184,166,.22);
}
.btn-primary:hover{filter:brightness(.96);transform:translateY(-2px);color:var(--ink);box-shadow:0 18px 36px rgba(18,184,166,.28);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:999px;
  background:transparent;border:1px solid rgba(25,20,38,.32);color:var(--ink);
  font-weight:600;font-size:15.5px;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.btn-outline:hover{background:var(--ink);color:var(--sand);border-color:var(--ink);transform:translateY(-2px);}
.btn-outline:active{transform:translateY(0);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--ink);
  border-bottom:1px solid transparent;padding-bottom:2px;transition:color .2s ease,border-color .2s ease;
}
.link-arrow .ar{transition:transform .2s ease;}
.link-arrow:hover{color:var(--teal);border-color:rgba(18,184,166,.5);}
.link-arrow:hover .ar{transform:translateX(4px);}

/* ---------- crumbs ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--soft);padding:26px 0 0;}
.crumbs a{color:var(--muted);transition:color .2s ease;}
.crumbs a:hover{color:var(--teal);}
.crumbs .sep{color:#C6BEB0;}
.crumbs .current{color:var(--muted);}

/* ---------- article hero ---------- */
.article-hero{padding-bottom:12px;}
.pill-cat{
  display:inline-flex;align-items:center;gap:8px;
  height:32px;padding:0 16px;border-radius:999px;
  background:var(--panel);color:#0E7C70;font-size:13px;font-weight:700;
  letter-spacing:.02em;
}
.pill-cat .dot{width:6px;height:6px;border-radius:50%;background:var(--teal);}
.article-title{
  font-size:clamp(30px,4.2vw,48px);
  font-weight:800;letter-spacing:-.025em;line-height:1.24;
  margin:18px 0 0;max-width:900px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px;font-size:13.5px;color:var(--muted);}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:7px;}
.meta-row .meta-item svg{width:16px;height:16px;stroke:var(--teal);stroke-width:1.75;fill:none;}
.meta-row .dot-sep{width:4px;height:4px;border-radius:50%;background:#CFC7BA;}
.hero-cover{
  margin:32px 0 0;padding:1px;border-radius:26px;background:var(--grad);
  box-shadow:var(--shadow);
}
.hero-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:25px;}

/* ---------- layout ---------- */
.article-shell{padding:56px 0 72px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:56px;align-items:start;}
.article-main{min-width:0;}

/* ---------- article body ---------- */
.article-body{max-width:840px;font-size:16.5px;line-height:1.85;color:#2B2538;}
.article-body h2{
  font-size:clamp(24px,2.6vw,32px);font-weight:800;letter-spacing:-.02em;
  margin:2.4em 0 .8em;padding-left:16px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:4px;background:var(--grad);
}
.article-body h3{font-size:20px;font-weight:700;margin:1.8em 0 .6em;}
.article-body h4{font-size:17px;font-weight:700;margin:1.5em 0 .5em;color:#3A3348;}
.article-body p{margin:0 0 1.2em;}
.article-body a{color:var(--teal);border-bottom:1px solid rgba(18,184,166,.35);transition:border-color .2s ease,color .2s ease;}
.article-body a:hover{color:#0E7C70;border-color:#0E7C70;}
.article-body strong{font-weight:700;color:var(--ink);}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:4px;}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:.6em;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:50%;
  background:var(--teal);box-shadow:0 0 0 3px rgba(18,184,166,.14);
}
.article-body ol{counter-reset:li;}
.article-body ol li{position:relative;padding-left:32px;margin-bottom:.7em;counter-increment:li;}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:.18em;
  width:22px;height:22px;border-radius:8px;background:var(--panel);color:#0E7C70;
  font-size:12.5px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:1.6em 0;padding:18px 24px;background:var(--panel);border-radius:0 var(--r-sm) var(--r-sm) 0;
  border-left:3px solid var(--teal);color:#2F4B45;font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-sm);margin:1.4em 0;box-shadow:var(--shadow);}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:13px;color:var(--soft);text-align:center;margin-top:.7em;}
.article-body table{
  display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;
  margin:1.6em 0;font-size:14.5px;border:1px solid var(--line);border-radius:12px;
}
.article-body thead{background:var(--panel);}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap;}
.article-body tr:last-child td{border-bottom:0;}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.4em 0;}
.article-body code{
  background:#F1ECE3;border-radius:6px;padding:2px 6px;font-size:14px;color:#7A4B22;
}

/* ---------- empty state ---------- */
.empty-state{
  max-width:840px;border:1px dashed #D6CDBE;border-radius:var(--r-md);
  background:var(--card);padding:56px 32px;text-align:center;
}
.empty-state h2{font-size:22px;font-weight:800;margin-bottom:10px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:24px;}

/* ---------- sidebar ---------- */
.article-side{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--card);border:1px solid rgba(25,20,38,.07);border-radius:var(--r-md);
  padding:22px 22px 18px;box-shadow:var(--shadow);
}
.side-card h3{font-size:15px;font-weight:800;letter-spacing:.01em;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:14px;height:2px;border-radius:2px;background:var(--grad);}
.side-links li{border-bottom:1px solid #F1ECE3;}
.side-links li:last-child{border-bottom:0;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;font-size:14.5px;color:#3A3348;font-weight:500;transition:color .2s ease,padding-left .2s ease;
}
.side-links a:hover{color:var(--teal);padding-left:4px;}
.side-links .chev{color:#C6BEB0;font-size:14px;}
.side-note{font-size:13.5px;color:var(--muted);line-height:1.8;}
.side-back{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:46px;border-radius:999px;border:1px solid rgba(25,20,38,.2);
  font-size:14.5px;font-weight:600;color:var(--ink);background:transparent;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.side-back:hover{background:var(--ink);color:var(--sand);transform:translateY(-2px);}

/* ---------- related ---------- */
.related-block{padding:0 0 88px;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.sec-head h2{font-size:clamp(24px,3vw,32px);font-weight:800;letter-spacing:-.02em;}
.sec-head .sub{font-size:14px;color:var(--muted);margin-top:8px;}
.rec-grid{display:flex;gap:24px;margin:0;}
.rec-cell{flex:1 1 0;min-width:0;padding:0;}
.rec-card{
  display:flex;flex-direction:column;gap:12px;height:100%;
  background:var(--card);border:1px solid rgba(25,20,38,.07);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(18,184,166,.4);}
.rec-top{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--panel);color:#0E7C70;font-size:12px;font-weight:700;
}
.rec-time{font-size:12.5px;color:var(--soft);}
.rec-card h3{font-size:18px;font-weight:700;line-height:1.45;}
.rec-card p{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rec-foot{margin-top:auto;display:flex;justify-content:flex-end;font-size:14px;font-weight:700;color:var(--teal);}
.rec-foot .ar{transition:transform .2s ease;}
.rec-card:hover .rec-foot .ar{transform:translateX(4px);}

/* ---------- cta ---------- */
.cta-band{
  position:relative;background:var(--ink);color:#F3EFE7;
  border-radius:var(--r-lg);overflow:hidden;margin-bottom:88px;
}
.cta-band::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;background:var(--grad);}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;padding:56px 48px;}
.cta-inner h2{font-size:clamp(24px,3vw,32px);font-weight:800;color:#F7F4EE;letter-spacing:-.02em;}
.cta-inner p{margin-top:12px;font-size:15px;color:#BDB6C6;max-width:560px;line-height:1.8;}
.cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;}
.cta-actions .link-arrow{color:#E7E1D8;}
.cta-actions .link-arrow:hover{color:#8FE7D8;border-color:rgba(143,231,216,.6);}

/* ---------- footer ---------- */
.site-foot{background:var(--ink);color:#C7C0D1;padding:72px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:44px;}
.foot-brand .fb-top{font-size:20px;font-weight:800;color:#F7F4EE;letter-spacing:-.02em;}
.foot-brand .fb-sub{font-size:12.5px;font-weight:600;color:#8FE7D8;letter-spacing:.14em;margin-top:4px;}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:#A49CB3;}
.foot-col h4{font-size:14px;font-weight:700;color:#F7F4EE;margin-bottom:16px;letter-spacing:.02em;}
.foot-col ul li{margin-bottom:10px;}
.foot-col a{font-size:14px;color:#B4ACC1;transition:color .2s ease;}
.foot-col a:hover{color:#8FE7D8;}
.foot-col p{font-size:13.5px;line-height:1.9;color:#A49CB3;}
.foot-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:#8C8499;
}
.foot-bottom .domain{color:#6F6880;}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .head-inner{height:72px;}
  .nav-links{gap:22px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px;}
  .article-side{position:static;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:44px 32px;}
  .rec-grid{flex-wrap:wrap;}
  .rec-cell{flex:1 1 45%;}
}
@media (max-width:860px){
  .nav-toggle{display:flex;}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:flex-start;gap:4px;
    background:var(--sand);border-bottom:1px solid var(--line);
    padding:16px 24px 24px;box-shadow:0 24px 40px rgba(25,20,38,.1);
    display:none;
  }
  .nav-links.is-open{display:flex;}
  .nav-links a{width:100%;padding:13px 0;font-size:16px;border-bottom:1px solid rgba(25,20,38,.06);}
  .nav-links a::after{display:none;}
  .nav-links a.is-active::before{
    content:"";display:inline-block;width:6px;height:6px;border-radius:50%;
    background:var(--teal);margin-right:8px;vertical-align:middle;
  }
  .head-actions .btn-ghost-sm{display:none;}
}
@media (max-width:767px){
  .wrap{padding:0 20px;}
  .article-shell{padding:40px 0 56px;}
  .article-title{font-size:clamp(26px,7vw,34px);}
  .article-body{font-size:16px;}
  .hero-cover{margin-top:24px;border-radius:22px;}
  .hero-cover img{border-radius:21px;aspect-ratio:16/10;}
  .rec-grid{flex-direction:column;gap:18px;}
  .rec-cell{flex:1 1 auto;}
  .related-block{padding-bottom:64px;}
  .cta-band{margin-bottom:64px;border-radius:var(--r-md);}
  .cta-inner{padding:36px 24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-primary{width:100%;}
  .foot-grid{grid-template-columns:1fr;gap:32px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .site-foot{padding-top:56px;}
  .side-card{padding:20px 18px 16px;}
  .empty-state{padding:40px 22px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --ink:#191426;
  --ink-soft:#3B3348;
  --muted:#6C6577;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --panel:#EEF7F2;
  --line:#E5DED3;
  --teal:#12B8A6;
  --coral:#FF6A3D;
  --lime:#C9F26B;
  --grad:linear-gradient(120deg,#12B8A6 0%,#5CD6B0 48%,#FFB36B 100%);
  --r-xl:32px;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --sh:0 18px 50px rgba(25,20,38,.08);
  --sh-h:0 24px 64px rgba(25,20,38,.12);
  --w:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.26;color:var(--ink)}
p{margin:0}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--teal)}
ul{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
button{font-family:inherit}
::selection{background:rgba(18,184,166,.25)}
:where(a,button,summary,input,textarea):focus-visible{outline:3px solid rgba(18,184,166,.35);outline-offset:3px;border-radius:6px}
.wrap{width:100%;max-width:var(--w);margin:0 auto;padding:0 24px}

/* ===== 顶部导航 ===== */
.site-head{
  position:sticky;top:0;z-index:80;
  background:rgba(247,244,238,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.head-inner{display:flex;align-items:center;gap:30px;min-height:82px;position:relative}
.brand{display:flex;flex-direction:column;line-height:1.1;flex-shrink:0}
.brand-top{font-size:17.5px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.brand-sub{font-size:12.5px;font-weight:600;letter-spacing:.06em;color:var(--muted);margin-top:4px}
.nav-links{display:flex;align-items:center;gap:32px;margin-left:auto;font-size:14.5px;font-weight:600}
.nav-links a{position:relative;display:inline-block;padding:6px 0;color:var(--ink-soft)}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--ink)}
.head-cta{
  display:inline-flex;align-items:center;justify-content:center;height:42px;padding:0 20px;
  border-radius:999px;border:1px solid rgba(25,20,38,.26);
  font-size:14px;font-weight:700;color:var(--ink);flex-shrink:0;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.head-cta:hover{background:var(--ink);color:#F7F4EE;border-color:var(--ink);transform:translateY(-1px)}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;
  align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:12px;background:#fff;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;transition:background .2s ease}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .2s ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:50px;padding:0 26px;border-radius:999px;
  font-size:15.5px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,filter .2s ease;
}
.btn-primary{background:var(--grad);color:var(--ink);box-shadow:0 12px 28px rgba(18,184,166,.28)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(.96);box-shadow:0 18px 38px rgba(18,184,166,.34);color:var(--ink)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:rgba(25,20,38,.24);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#F7F4EE;border-color:var(--ink)}
.btn-ghost:active{transform:translateY(1px)}

/* ===== 首屏 ===== */
.page-hero{padding:64px 0 40px}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12.5px;font-weight:700;letter-spacing:.16em;color:var(--teal)}
.eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;background:var(--grad)}
.page-title{font-size:clamp(32px,4.1vw,54px);margin-top:16px}
.lede{margin-top:20px;font-size:17px;line-height:1.85;color:var(--ink-soft);max-width:600px}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px}
.hero-media{position:relative;padding:6px;border-radius:28px;background:var(--grad);box-shadow:var(--sh)}
.hero-media img{width:100%;height:348px;object-fit:cover;border-radius:22px}
.float-chip{
  position:absolute;left:22px;bottom:22px;display:inline-flex;align-items:center;gap:8px;
  background:#fff;border-radius:999px;padding:9px 16px;font-size:13px;font-weight:700;
  box-shadow:0 12px 30px rgba(25,20,38,.16);
}
.float-chip::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--grad)}

/* ===== 主题胶囊 ===== */
.chip-bar{padding:6px 0 8px}
.chip-list{display:flex;flex-wrap:wrap;gap:12px}
.chip{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 20px;
  border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--ink-soft);
  transition:transform .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.chip:hover{transform:translateY(-2px);border-color:rgba(18,184,166,.55);color:var(--ink);box-shadow:0 10px 24px rgba(25,20,38,.07)}
.chip.is-current{background:var(--ink);color:#F7F4EE;border-color:var(--ink)}
.chip.is-current:hover{color:#F7F4EE}

/* ===== 板块通用 ===== */
.section{padding:76px 0}
.section-alt{padding:76px 0;background:var(--panel)}
.section-head{max-width:740px;margin-bottom:38px}
.section-head h2{font-size:clamp(26px,3.2vw,38px)}
.section-head p{margin-top:14px;font-size:16px;color:var(--muted);line-height:1.85}

/* ===== 入口卡片 ===== */
.entry-grid{--gut:28px}
.entry-grid.grid-margin-x{margin-left:calc(var(--gut) / -2);margin-right:calc(var(--gut) / -2)}
.entry-grid.grid-margin-x > .cell{padding-left:calc(var(--gut) / 2);padding-right:calc(var(--gut) / 2)}
.entry-grid.grid-margin-y{margin-top:calc(var(--gut) / -2);margin-bottom:calc(var(--gut) / -2)}
.entry-grid.grid-margin-y > .cell{margin-bottom:var(--gut)}
.entry-card{
  height:100%;display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-h);border-color:rgba(18,184,166,.45)}
.entry-thumb{position:relative;overflow:hidden;background:var(--panel);aspect-ratio:4/3}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s ease}
.entry-card:hover .entry-thumb img{transform:scale(1.03)}
.entry-tag{
  position:absolute;top:14px;left:14px;display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:999px;background:rgba(255,255,255,.94);color:var(--ink);
  font-size:12.5px;font-weight:700;letter-spacing:.02em;
}
.entry-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.entry-body h3{font-size:21px}
.entry-body p{font-size:14.5px;line-height:1.8;color:var(--muted)}
.entry-foot{
  margin-top:auto;padding-top:14px;display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.entry-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--ink)}
.entry-link .arw{display:inline-block;transition:transform .2s ease}
.entry-card:hover .entry-link .arw{transform:translateX(4px)}
.badge{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;
  background:var(--panel);color:var(--ink-soft);font-size:12.5px;font-weight:700;white-space:nowrap;
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grad);flex-shrink:0}

/* ===== 查看前确认 ===== */
.check-list{border-top:1px solid var(--line)}
.check-item{
  display:grid;grid-template-columns:76px 1fr;gap:26px;align-items:start;
  padding:28px 0;border-bottom:1px solid var(--line);
}
.check-num{
  font-size:22px;font-weight:800;letter-spacing:.02em;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.check-item h3{font-size:19.5px;margin-bottom:8px}
.check-item p{font-size:15px;line-height:1.85;color:var(--muted);max-width:760px}

/* ===== FAQ ===== */
.faq-panel{max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:22px;
  padding:24px 4px;cursor:pointer;list-style:none;
  font-size:18px;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex-shrink:0;font-size:22px;font-weight:400;line-height:1;color:var(--teal);
  transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:hover{color:var(--teal)}
.faq-body{padding:0 4px 26px;font-size:15px;line-height:1.88;color:var(--ink-soft);max-width:820px}

/* ===== CTA ===== */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink);color:#F7F4EE;
  border-radius:var(--r-xl);padding:56px 52px;
  box-shadow:var(--sh);
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad);
}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,34px);max-width:620px}
.cta-band p{margin-top:16px;font-size:15.5px;line-height:1.85;color:rgba(247,244,238,.74);max-width:640px}
.cta-actions{margin-top:32px;display:flex;flex-wrap:wrap;align-items:center;gap:22px}
.cta-link{font-size:14.5px;font-weight:700;color:rgba(247,244,238,.86);border-bottom:1px solid rgba(247,244,238,.4);padding-bottom:2px}
.cta-link:hover{color:var(--lime);border-color:var(--lime)}

/* ===== 面包屑 ===== */
.crumbs{font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding-top:26px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--teal)}
.crumbs .sep{color:rgba(25,20,38,.28)}
.crumbs .now{color:var(--ink-soft);font-weight:600}

/* ===== 页脚 ===== */
.site-foot{background:var(--ink);color:rgba(247,244,238,.78);padding:68px 0 28px;margin-top:84px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand .fb-top{font-size:19px;font-weight:800;color:#fff;letter-spacing:-.01em}
.foot-brand .fb-sub{font-size:12.5px;font-weight:600;letter-spacing:.16em;color:rgba(247,244,238,.58);margin:6px 0 16px}
.foot-brand p{font-size:14px;line-height:1.9;color:rgba(247,244,238,.64);max-width:320px}
.foot-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700}
.foot-col ul li{margin-bottom:10px}
.foot-col a{font-size:14px;color:rgba(247,244,238,.72)}
.foot-col a:hover{color:var(--lime)}
.foot-col p{font-size:13.5px;line-height:1.9;color:rgba(247,244,238,.64)}
.foot-bottom{
  margin-top:46px;padding-top:22px;border-top:1px solid rgba(247,244,238,.14);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
  font-size:13px;color:rgba(247,244,238,.55);
}
.foot-bottom .domain{letter-spacing:.06em}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .hero-grid{gap:36px}
  .hero-media img{height:308px}
  .section,.section-alt{padding:68px 0}
}
@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-media img{height:300px}
  .lede{max-width:none}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
  .cta-band{padding:44px 34px}
}
@media (max-width:900px){
  .nav-links{
    display:none;position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;margin-left:0;
    background:var(--bg);border-bottom:1px solid var(--line);
    padding:10px 24px 18px;box-shadow:0 22px 44px rgba(25,20,38,.12);
  }
  .nav-links.is-open{display:flex}
  .nav-links a{padding:15px 0;font-size:16.5px;border-bottom:1px solid var(--line)}
  .nav-links a::after{display:none}
  .nav-links a.is-active{color:var(--teal)}
  .nav-links a:last-child{border-bottom:0}
  .head-cta{display:none}
  .nav-toggle{display:inline-flex}
  .head-inner{min-height:64px;gap:16px}
  .brand-top{font-size:16px}
  .brand-sub{font-size:11.5px}
}
@media (max-width:640px){
  .wrap{padding:0 20px}
  .page-hero{padding:38px 0 26px}
  .page-title{font-size:clamp(27px,7.6vw,36px)}
  .lede{font-size:15.5px;margin-top:16px}
  .hero-actions{margin-top:26px}
  .hero-actions .btn{width:100%}
  .hero-media{padding:5px;border-radius:24px}
  .hero-media img{height:230px;border-radius:20px}
  .float-chip{left:16px;bottom:16px;font-size:12px;padding:8px 13px}
  .section,.section-alt{padding:52px 0}
  .section-head{margin-bottom:28px}
  .entry-body{padding:18px 20px 20px}
  .entry-body h3{font-size:19px}
  .entry-foot{flex-wrap:wrap;gap:10px}
  .check-item{grid-template-columns:1fr;gap:8px;padding:24px 0}
  .check-item h3{font-size:18px}
  .faq-item summary{font-size:16.5px;padding:20px 2px;gap:16px}
  .faq-body{padding-bottom:22px;font-size:14.5px}
  .cta-band{padding:34px 22px;border-radius:24px}
  .cta-actions{flex-direction:column;align-items:flex-start;gap:16px}
  .cta-actions .btn{width:100%}
  .site-foot{padding:52px 0 24px;margin-top:60px}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .foot-bottom{margin-top:34px;font-size:12.5px;flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --primary:#12B8A6;
  --primary-deep:#0E7C70;
  --primary-soft:#EEF7F2;
  --accent:#FF6A3D;
  --lime:#C9F26B;
  --ink:#191426;
  --ink-2:#3A3448;
  --muted:#6B6478;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --line:#E5DED3;
  --grad:linear-gradient(120deg,#12B8A6 0%,#5CD6B0 48%,#FFB36B 100%);
  --radius-xl:28px;
  --radius:22px;
  --radius-sm:16px;
  --shadow:0 18px 50px rgba(25,20,38,.08);
  --shadow-hover:0 24px 64px rgba(25,20,38,.12);
  --maxw:1240px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
dl,dd,dt{margin:0}
summary{list-style:none;cursor:pointer}
summary::-webkit-details-marker{display:none}

a:focus-visible,
button:focus-visible,
summary:focus-visible,
input:focus-visible,
textarea:focus-visible{outline:3px solid rgba(18,184,166,.35);outline-offset:3px;border-radius:8px}

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

/* ============ Header ============ */
.site-head{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,238,.94);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.head-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:28px;height:82px;
}
.brand{display:flex;flex-direction:column;justify-content:center;line-height:1.12;padding:4px 0}
.brand .b1{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.brand .b2{font-size:12px;color:var(--muted);letter-spacing:.16em;margin-top:4px}
.brand:hover .b1{color:var(--primary-deep)}

.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{
  position:relative;font-size:15px;color:var(--ink-2);padding:8px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--ink);font-weight:700}
.nav-links a.is-active::after{transform:scaleX(1)}

.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 20px;border-radius:999px;
  border:1px solid rgba(25,20,38,.22);
  font-size:14px;font-weight:700;color:var(--ink);
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.nav-cta:hover{background:var(--ink);color:var(--bg);border-color:var(--ink);transform:translateY(-1px)}

.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);padding:0;
}
.nav-toggle svg{width:20px;height:20px}

/* ============ Buttons & badges ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:50px;padding:0 27px;border-radius:999px;
  font-size:15px;font-weight:700;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background .2s ease,color .2s ease;
}
.btn svg{width:18px;height:18px;flex:0 0 auto}
.btn-primary{background:var(--grad);color:var(--ink);box-shadow:0 12px 28px rgba(18,184,166,.24)}
.btn-primary:hover{filter:brightness(.96);transform:translateY(-2px);box-shadow:0 18px 36px rgba(18,184,166,.28)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:rgba(25,20,38,.28);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--bg);border-color:var(--ink);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-on-dark{background:var(--grad);color:var(--ink)}
.btn-on-dark:hover{filter:brightness(.95);transform:translateY(-2px)}

.badge{
  display:inline-flex;align-items:center;gap:9px;
  height:34px;padding:0 15px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary-deep);
  font-size:13px;font-weight:700;letter-spacing:.02em;
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--grad);flex:0 0 auto}
.badge.on-dark{background:rgba(255,255,255,.1);color:#E9FBF6;border:1px solid rgba(255,255,255,.18)}

.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;background:var(--primary-soft);color:var(--primary-deep);
  font-size:12.5px;font-weight:700;letter-spacing:.03em;
}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--primary-deep);
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:26px;height:2px;border-radius:2px;background:var(--grad)}

/* ============ Breadcrumb ============ */
.crumb{padding:22px 0 0;font-size:13px;color:var(--muted)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li:not(:last-child)::after{content:"/";color:#C4BBAE}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--primary-deep)}
.crumb .cur{color:var(--ink-2);font-weight:600}

/* ============ Hero ============ */
.hero{padding:34px 0 0}
.hero-grid{
  display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center;
}
.hero h1{
  font-size:clamp(32px,4.4vw,54px);
  line-height:1.18;
  letter-spacing:-.025em;
}
.hero h1 .kw{display:block;color:var(--ink)}
.hero h1 .sub{display:block;margin-top:10px;font-size:.62em;font-weight:700;color:var(--primary-deep);letter-spacing:0}
.hero-lead{
  margin-top:22px;max-width:620px;
  font-size:16.5px;line-height:1.85;color:var(--ink-2);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}

.hero-figure{
  position:relative;padding:6px;border-radius:var(--radius-xl);
  background:var(--grad);box-shadow:var(--shadow);
}
.hero-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:24px;
}
.hero-float{
  position:absolute;left:-16px;bottom:24px;
  display:flex;align-items:center;gap:12px;
  padding:14px 18px;border-radius:18px;background:#fff;
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.hero-float .num{font-size:26px;font-weight:800;line-height:1;color:var(--ink);font-variant-numeric:tabular-nums}
.hero-float .lbl{font-size:12.5px;color:var(--muted);line-height:1.5}

/* ============ Section base ============ */
.sec{padding:88px 0}
.sec-tight{padding:64px 0}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-head h2{font-size:clamp(27px,3.1vw,40px);line-height:1.22}
.sec-head p{margin-top:16px;font-size:16px;color:var(--muted);line-height:1.85}

/* ============ Split layout ============ */
.split{
  display:grid;grid-template-columns:minmax(0,1fr) 348px;gap:56px;align-items:start;
}

/* ============ Prose ============ */
.prose h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:18px}
.prose h3{font-size:20px;margin:30px 0 10px}
.prose p{font-size:16.5px;line-height:1.9;color:var(--ink-2);margin-bottom:16px}
.prose p:last-child{margin-bottom:0}
.prose strong{color:var(--ink);font-weight:700}

.note{
  border-left:3px solid transparent;
  border-image:var(--grad) 1;
  background:var(--primary-soft);
  padding:18px 22px;border-radius:0 14px 14px 0;
  font-size:15.5px;color:var(--ink-2);line-height:1.85;
  margin:24px 0;
}

/* ============ Steps timeline ============ */
.steps{margin-top:34px}
.step{
  position:relative;display:grid;grid-template-columns:64px minmax(0,1fr);
  gap:24px;padding-bottom:38px;
}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:31px;top:64px;bottom:6px;width:2px;
  background:linear-gradient(180deg,rgba(18,184,166,.45),rgba(229,222,211,.9));
}
.step:last-child::before{display:none}
.step-no{
  width:64px;height:64px;border-radius:20px;display:grid;place-items:center;
  font-size:19px;font-weight:800;color:var(--ink);
  background:var(--grad);box-shadow:0 12px 26px rgba(18,184,166,.22);
  font-variant-numeric:tabular-nums;
}
.step-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 26px;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step-body:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(18,184,166,.4)}
.step-body h3{font-size:19px;margin:0 0 10px}
.step-body p{font-size:15.5px;line-height:1.85;color:var(--muted)}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* ============ Aside ============ */
.aside{position:sticky;top:106px;display:flex;flex-direction:column;gap:20px}
.aside-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);
}
.aside-card h3{font-size:17px;margin-bottom:16px;display:flex;align-items:center;gap:9px}
.aside-card h3 svg{width:18px;height:18px;color:var(--primary)}
.aside-list li{
  display:flex;gap:11px;padding:11px 0;border-bottom:1px dashed var(--line);
  font-size:14.5px;color:var(--ink-2);line-height:1.7;
}
.aside-list li:last-child{border-bottom:0;padding-bottom:0}
.aside-list .k{
  flex:0 0 auto;font-size:12.5px;font-weight:700;color:var(--primary-deep);
  background:var(--primary-soft);border-radius:8px;padding:2px 9px;height:24px;line-height:20px;
}
.aside-cta{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.aside-cta .btn{width:100%;height:48px}
.aside-back{display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:700;color:var(--primary-deep)}
.aside-back svg{width:16px;height:16px;transition:transform .2s ease}
.aside-back:hover svg{transform:translateX(4px)}

/* ============ Chips nav ============ */
.chip-nav{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 18px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--ink-2);
  transition:all .2s ease;
}
.chip:hover{border-color:var(--primary);color:var(--primary-deep);transform:translateY(-2px)}
.chip.is-active{background:var(--ink);border-color:var(--ink);color:var(--bg)}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--grad)}

/* ============ Definition grid ============ */
.defs{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:1px;background:var(--line);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;
}
.def{background:#fff;padding:26px 26px 28px}
.def dt{
  font-size:12.5px;font-weight:800;letter-spacing:.1em;
  color:var(--primary-deep);margin-bottom:10px;
}
.def dd{font-size:15px;line-height:1.8;color:var(--ink-2);margin:0}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;font-size:17.5px;font-weight:700;color:var(--ink);
  transition:color .2s ease;
}
.faq-item summary:hover{color:var(--primary-deep)}
.faq-item summary .plus{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform .2s ease;
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink-2);
  border-radius:2px;transform:translate(-50%,-50%);
}
.faq-item summary .plus::before{width:14px;height:2px}
.faq-item summary .plus::after{width:2px;height:14px;transition:opacity .2s ease}
.faq-item[open] summary .plus{transform:rotate(45deg)}
.faq-item[open] summary{color:var(--primary-deep)}
.faq-body{padding:0 4px 24px;max-width:820px}
.faq-body p{font-size:15px;line-height:1.9;color:var(--muted);margin-bottom:10px}
.faq-body p:last-child{margin-bottom:0}

/* ============ CTA block ============ */
.cta-block{
  position:relative;overflow:hidden;
  border-radius:var(--radius-xl);
  background:var(--ink);
  color:rgba(255,255,255,.82);
  padding:60px 56px;
}
.cta-block::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--grad);
}
.cta-block::after{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,184,166,.28),transparent 68%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:44px;flex-wrap:wrap}
.cta-text h2{font-size:clamp(26px,3vw,36px);color:#fff;line-height:1.24}
.cta-text p{margin-top:14px;max-width:560px;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.7)}
.cta-actions{display:flex;flex-direction:column;align-items:flex-start;gap:14px}
.cta-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--lime);
  border-bottom:1px solid transparent;padding-bottom:2px;
  transition:border-color .2s ease,color .2s ease;
}
.cta-link:hover{color:#fff;border-color:var(--lime)}
.cta-link svg{width:16px;height:16px;transition:transform .2s ease}
.cta-link:hover svg{transform:translateX(4px)}

/* ============ Footer ============ */
.site-foot{
  background:var(--ink);color:rgba(255,255,255,.72);
  margin-top:96px;padding:66px 0 0;
}
.foot-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;
  gap:44px;padding-bottom:52px;
}
.foot-brand .fb-top{font-size:20px;font-weight:800;color:#fff;letter-spacing:-.01em}
.foot-brand .fb-sub{font-size:12.5px;letter-spacing:.18em;color:var(--primary);margin-top:5px;margin-bottom:16px}
.foot-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:300px}
.foot-col h4{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:0}
.foot-col ul{display:flex;flex-direction:column;gap:2px}
.foot-col a{font-size:14px;color:rgba(255,255,255,.68);line-height:1.95;display:inline-block}
.foot-col a:hover{color:var(--lime)}
.foot-col p{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.6)}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding:24px 0 30px;
  font-size:13px;color:rgba(255,255,255,.5);
}
.foot-bottom .domain{letter-spacing:.06em}

/* ============ Responsive ============ */
@media (max-width:1199px){
  .hero-grid{gap:38px}
  .split{grid-template-columns:minmax(0,1fr) 312px;gap:40px}
  .sec{padding:76px 0}
}
@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-figure{order:-1;max-width:560px}
  .hero-float{left:12px;bottom:12px}
  .split{grid-template-columns:1fr;gap:34px}
  .aside{position:static}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
  .cta-block{padding:46px 34px}
  .cta-inner{gap:28px}
}
@media (max-width:900px){
  .head-inner{height:66px;gap:14px}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .nav-links{
    position:absolute;left:0;right:0;top:66px;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    background:var(--bg);border-bottom:1px solid var(--line);
    padding:10px 24px 22px;box-shadow:0 22px 40px rgba(25,20,38,.09);
  }
  .nav-links.is-open{display:flex}
  .nav-links a{
    padding:15px 0;font-size:17px;border-bottom:1px solid var(--line);
  }
  .nav-links a::after{display:none}
  .nav-links a.is-active{color:var(--primary-deep);font-weight:800}
}
@media (max-width:767px){
  body{font-size:16px}
  .wrap{padding:0 20px}
  .sec{padding:56px 0}
  .sec-tight{padding:46px 0}
  .hero{padding:26px 0 0}
  .hero h1 .sub{font-size:.68em}
  .hero-lead{font-size:15.5px;margin-top:18px}
  .hero-actions{gap:10px;margin-top:24px}
  .btn{height:48px;padding:0 22px;font-size:14.5px}
  .hero-float{padding:11px 14px;gap:9px}
  .hero-float .num{font-size:21px}
  .defs{grid-template-columns:1fr}
  .step{grid-template-columns:48px minmax(0,1fr);gap:16px;padding-bottom:28px}
  .step-no{width:48px;height:48px;border-radius:15px;font-size:16px}
  .step::before{left:23px;top:48px}
  .step-body{padding:20px}
  .cta-block{padding:36px 24px;border-radius:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .faq-item summary{font-size:16px;padding:18px 2px;gap:14px}
  .foot-grid{grid-template-columns:1fr;gap:30px;padding-bottom:38px}
  .site-foot{padding-top:52px;margin-top:64px}
  .foot-bottom{justify-content:flex-start;gap:8px;padding:20px 0 26px}
}
@media (max-width:520px){
  .hero-float{display:none}
  .chip{height:36px;padding:0 14px;font-size:13px}
  .badge{font-size:12px}
  .def{padding:22px}
  .aside-card{padding:22px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
:root{
  --ink:#191426;
  --ink-soft:#3A3348;
  --muted:#6B6478;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --panel:#EEF7F2;
  --line:#E5DED3;
  --main:#12B8A6;
  --main-deep:#0E9C8D;
  --coral:#FF6A3D;
  --lime:#C9F26B;
  --grad:linear-gradient(120deg,#12B8A6 0%,#5CD6B0 48%,#FFB36B 100%);
  --r-lg:28px;
  --r-md:22px;
  --r-sm:16px;
  --sh:0 18px 50px rgba(25,20,38,.08);
  --sh-hover:0 24px 64px rgba(25,20,38,.12);
  --wrap:1240px;
  --ring:0 0 0 3px rgba(18,184,166,.35);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;}
a:hover{color:var(--main-deep);}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;line-height:1.28;letter-spacing:-.02em;font-weight:800;color:var(--ink);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:none;box-shadow:var(--ring);border-radius:8px;}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--panel{background:var(--panel);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--main-deep);text-transform:none;
  background:rgba(18,184,166,.1);
  border:1px solid rgba(18,184,166,.22);
  border-radius:999px;padding:6px 14px;margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grad);}
h2.h-sec{font-size:38px;margin-bottom:14px;}
.sec-lead{max-width:660px;color:var(--muted);font-size:16.5px;margin:0 0 42px;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;margin-bottom:38px;}
.sec-head .sec-lead{margin-bottom:0;}

/* 顶部导航 */
.site-head{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,238,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.head-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;height:82px;}
.brand{display:flex;flex-direction:column;line-height:1.16;gap:2px;padding:6px 2px;border-radius:10px;}
.brand-top{font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
.brand-sub{font-size:12.5px;font-weight:600;letter-spacing:.14em;color:var(--main-deep);}
.brand:hover .brand-top{color:var(--main-deep);}
.nav-links{display:flex;align-items:center;gap:34px;}
.nav-links a{
  position:relative;font-size:15px;font-weight:600;color:var(--ink-soft);
  padding:8px 2px;border-radius:6px;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--grad);border-radius:2px;opacity:0;transform:scaleX(.4);
  transform-origin:left;transition:opacity .2s ease,transform .24s ease;
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{opacity:.55;transform:scaleX(1);}
.nav-links a.is-active{color:var(--ink);font-weight:700;}
.nav-links a.is-active::after{opacity:1;transform:scaleX(1);}
.head-act{display:flex;align-items:center;gap:12px;}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:var(--card);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-drawer{
  display:none;position:fixed;top:82px;left:0;right:0;z-index:55;
  background:var(--card);border-bottom:1px solid var(--line);
  box-shadow:var(--sh);padding:14px 24px 24px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a{
  display:block;font-size:17px;font-weight:700;padding:14px 10px;
  border-bottom:1px solid var(--line);color:var(--ink-soft);
}
.mobile-drawer a.is-active{color:var(--main-deep);}
.mobile-drawer a.is-active::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--main);margin-right:10px;vertical-align:middle;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:999px;
  font-size:15.5px;font-weight:700;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:var(--ink);box-shadow:0 12px 30px rgba(18,184,166,.24);}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(.97);color:var(--ink);box-shadow:0 18px 40px rgba(18,184,166,.3);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--ink);border-color:rgba(25,20,38,.28);}
.btn-ghost:hover{background:var(--ink);color:var(--bg);border-color:var(--ink);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:700;color:var(--main-deep);}
.link-arrow .ar{transition:transform .2s ease;display:inline-block;}
.link-arrow:hover .ar{transform:translateX(4px);}
.link-underline{color:var(--ink-soft);font-weight:600;border-bottom:1px solid transparent;padding-bottom:2px;}
.link-underline:hover{color:var(--main-deep);border-bottom-color:var(--main);}

/* 面包屑 */
.crumb{padding:22px 0 0;font-size:13px;color:var(--muted);}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:#C6BFB2;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--main-deep);}
.crumb .current{color:var(--ink-soft);font-weight:600;}

/* Hero */
.hero{padding:38px 0 84px;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero h1{font-size:clamp(34px,4.4vw,56px);margin-bottom:20px;}
.hero h1 .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{font-size:17px;color:var(--muted);max-width:560px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-bottom:34px;}
.badges{display:flex;flex-wrap:wrap;gap:14px;}
.badge{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--card);border:1px solid var(--line);border-radius:999px;
  padding:9px 18px 9px 14px;box-shadow:0 8px 24px rgba(25,20,38,.05);
}
.badge .dot{width:8px;height:8px;border-radius:50%;background:var(--grad);flex:none;}
.badge .num{font-size:22px;font-weight:800;line-height:1;letter-spacing:-.02em;}
.badge .txt{font-size:12.5px;color:var(--muted);line-height:1.2;}
.hero-visual{position:relative;}
.hero-visual .frame{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid rgba(25,20,38,.07);
  box-shadow:var(--sh);
  background:var(--card);
  padding:8px;
}
.hero-visual .frame::before{
  content:"";position:absolute;inset:0;border-radius:var(--r-lg);
  padding:1px;background:var(--grad);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;
}
.hero-visual img{width:100%;height:360px;object-fit:cover;border-radius:22px;}
.float-tag{
  position:absolute;left:26px;bottom:26px;
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.94);border:1px solid rgba(25,20,38,.07);
  border-radius:999px;padding:8px 16px;font-size:13px;font-weight:700;color:var(--ink-soft);
  box-shadow:0 12px 30px rgba(25,20,38,.12);backdrop-filter:blur(6px);
}
.float-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--main);}

/* Bento 功能卡 */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:26px;}
.f-card{
  background:var(--card);border:1px solid rgba(25,20,38,.07);
  border-radius:var(--r-md);padding:30px;
  box-shadow:var(--sh);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.f-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(18,184,166,.35);}
.f-big{grid-column:span 8;padding:0;overflow:hidden;}
.f-big-body{padding:34px 34px 30px;display:flex;flex-direction:column;gap:16px;}
.f-big-media{position:relative;overflow:hidden;border-radius:var(--r-md) var(--r-md) 0 0;}
.f-big-media img{width:100%;height:260px;object-fit:cover;transition:transform .5s ease;}
.f-big:hover .f-big-media img{transform:scale(1.03);}
.f-big-media .pill-on{
  position:absolute;left:20px;top:20px;
  background:rgba(255,255,255,.95);border-radius:999px;
  padding:6px 14px;font-size:12.5px;font-weight:700;color:var(--main-deep);
}
.f-small{grid-column:span 4;gap:14px;}
.f-icon{
  width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:var(--panel);border:1px solid rgba(18,184,166,.18);flex:none;
}
.f-icon svg{width:22px;height:22px;stroke:var(--main-deep);stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round;}
.f-card h3{font-size:21px;}
.f-card p{font-size:14.8px;color:var(--muted);margin:0;}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px;}
.tag{
  font-size:12.5px;font-weight:600;color:var(--main-deep);
  background:rgba(18,184,166,.1);border-radius:999px;padding:5px 12px;
}
.tag--coral{color:#B8431D;background:rgba(255,106,61,.13);}
.f-card .link-arrow{margin-top:auto;padding-top:8px;}

/* 对比区 */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:26px;}
.cmp-card{
  background:var(--card);border:1px solid rgba(25,20,38,.07);
  border-radius:var(--r-md);padding:34px;box-shadow:var(--sh);
  position:relative;overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease;
}
.cmp-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.cmp-card::before{content:"";position:absolute;left:0;top:0;height:4px;width:100%;background:var(--grad);opacity:.9;}
.cmp-card h3{font-size:23px;margin-bottom:8px;}
.cmp-kicker{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.06em;margin-bottom:18px;display:block;}
.cmp-list{display:flex;flex-direction:column;gap:14px;margin-bottom:24px;}
.cmp-list li{display:flex;gap:12px;font-size:15px;color:var(--ink-soft);line-height:1.7;}
.cmp-list li .mk{
  flex:none;width:22px;height:22px;border-radius:50%;
  background:var(--panel);color:var(--main-deep);
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;margin-top:3px;
}

/* 使用路径 */
.path{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative;}
.step{
  background:var(--card);border:1px solid rgba(25,20,38,.07);
  border-radius:var(--r-md);padding:28px 24px 26px;
  box-shadow:var(--sh);position:relative;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(18,184,166,.35);}
.step .idx{
  font-size:40px;font-weight:800;line-height:1;letter-spacing:-.03em;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:14px;display:block;
}
.step h3{font-size:19px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--muted);margin:0;}
.step::after{
  content:"";position:absolute;right:-13px;top:50%;width:16px;height:1px;
  background:var(--line);
}
.step:last-child::after{display:none;}
.metrics{
  margin-top:44px;display:flex;flex-wrap:wrap;gap:16px;
}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:4fr 7fr;gap:56px;align-items:start;}
.faq-list{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:18px;
  padding:22px 4px;font-size:17.5px;font-weight:700;color:var(--ink);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--main-deep);}
.faq-item summary .pm{
  flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);background:var(--card);
  display:flex;align-items:center;justify-content:center;
  position:relative;transition:transform .2s ease,border-color .2s ease,background .2s ease;
}
.faq-item summary .pm::before,
.faq-item summary .pm::after{
  content:"";position:absolute;background:var(--ink-soft);border-radius:2px;
}
.faq-item summary .pm::before{width:11px;height:1.75px;}
.faq-item summary .pm::after{width:1.75px;height:11px;transition:opacity .2s ease;}
.faq-item[open] summary .pm{transform:rotate(45deg);border-color:rgba(18,184,166,.5);background:var(--panel);}
.faq-item .ans{padding:0 4px 24px;font-size:14.8px;color:var(--muted);line-height:1.85;max-width:640px;}
.faq-item .ans p:last-child{margin-bottom:0;}

/* CTA */
.cta-band{
  background:var(--ink);color:var(--bg);border-radius:var(--r-lg);
  padding:64px 56px;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;left:0;top:0;height:4px;width:100%;background:var(--grad);
}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,184,166,.28),transparent 68%);
}
.cta-band h2{color:#fff;font-size:34px;margin-bottom:14px;position:relative;}
.cta-band p{color:rgba(247,244,238,.78);max-width:600px;margin-bottom:30px;position:relative;}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center;position:relative;}
.cta-band .link-underline{color:rgba(247,244,238,.82);}
.cta-band .link-underline:hover{color:#fff;border-bottom-color:var(--main);}

/* 页脚 */
.site-foot{background:var(--ink);color:rgba(247,244,238,.72);padding:72px 0 0;margin-top:96px;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:44px;padding-bottom:48px;}
.fb-top{font-size:20px;font-weight:800;color:#fff;letter-spacing:-.01em;}
.fb-sub{font-size:12.5px;font-weight:600;letter-spacing:.14em;color:var(--main);margin-bottom:16px;}
.foot-brand p{font-size:14px;line-height:1.85;color:rgba(247,244,238,.62);max-width:300px;margin:0;}
.foot-col h4{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.04em;}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col li{font-size:14px;line-height:1.6;}
.foot-col a{color:rgba(247,244,238,.72);border-bottom:1px solid transparent;padding-bottom:1px;}
.foot-col a:hover{color:#fff;border-bottom-color:var(--main);}
.foot-col p{font-size:13.5px;line-height:1.9;color:rgba(247,244,238,.6);margin:0;}
.foot-bottom{
  border-top:1px solid rgba(247,244,238,.13);
  padding:22px 0 30px;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(247,244,238,.5);
}
.foot-bottom .domain{letter-spacing:.04em;}

/* 响应式 */
@media (max-width:1199px){
  .hero-grid{gap:40px;}
  h2.h-sec{font-size:34px;}
  .cta-band{padding:54px 44px;}
}
@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual img{height:300px;}
  .bento{grid-template-columns:repeat(6,1fr);}
  .f-big{grid-column:span 6;}
  .f-small{grid-column:span 3;}
  .path{grid-template-columns:repeat(2,1fr);gap:20px;}
  .step::after{display:none;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:900px){
  .nav-links{display:none;}
  .burger{display:inline-flex;}
  .head-inner{height:70px;}
  .mobile-drawer{top:70px;}
  .site-head{position:sticky;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .section{padding:60px 0;}
  .section--tight{padding:52px 0;}
  .wrap{padding:0 20px;}
  .hero{padding:26px 0 56px;}
  .hero h1{font-size:clamp(30px,7.6vw,38px);}
  .hero-sub{font-size:16px;}
  .hero-visual img{height:230px;}
  h2.h-sec{font-size:28px;}
  .f-big-body{padding:26px 22px 24px;}
  .f-card{padding:24px 22px;}
  .bento{grid-template-columns:1fr;gap:18px;}
  .f-big,.f-small{grid-column:span 1;}
  .f-big-media img{height:200px;}
  .compare{grid-template-columns:1fr;}
  .cmp-card{padding:26px 22px;}
  .path{grid-template-columns:1fr;}
  .badge{padding:8px 14px 8px 12px;}
  .badge .num{font-size:19px;}
  .cta-band{padding:40px 24px;border-radius:22px;}
  .cta-band h2{font-size:26px;}
  .foot-grid{grid-template-columns:1fr;gap:30px;padding-bottom:34px;}
  .site-foot{padding-top:52px;margin-top:64px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
  .btn{height:48px;width:100%;}
  .hero-actions .btn{width:100%;}
  .head-act .btn-ghost{display:none;}
  .sec-head{margin-bottom:28px;}
  .metrics{gap:10px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
}

/* roulang page: category4 */
:root{
  --brand:#12B8A6;
  --brand-2:#5CD6B0;
  --accent:#FF6A3D;
  --lime:#C9F26B;
  --ink:#191426;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --panel:#EEF7F2;
  --line:#E5DED3;
  --muted:#6B6478;
  --text-2:#4A4358;
  --grad:linear-gradient(120deg,#12B8A6 0%,#5CD6B0 48%,#FFB36B 100%);
  --r-xl:28px;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:16px;
  --shadow:0 18px 50px rgba(25,20,38,.08);
  --shadow-h:0 24px 64px rgba(25,20,38,.12);
  --ring:0 0 0 3px rgba(18,184,166,.35);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--brand)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.28;color:var(--ink)}
p{margin:0}
button{font:inherit;color:inherit}
input,textarea,select{font:inherit}
:focus-visible{outline:3px solid rgba(18,184,166,.35);outline-offset:3px;border-radius:8px}
::selection{background:rgba(18,184,166,.22)}

.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:64px 0}
.section-title{font-size:clamp(28px,3vw,38px);margin-bottom:12px}
.section-sub{font-size:15.5px;color:var(--muted);max-width:760px;line-height:1.85}

/* ---------- 顶部导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,238,.95);
  backdrop-filter:saturate(1.1) blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:82px}
.brand{display:flex;flex-direction:column;line-height:1.12}
.brand .b-top{font-size:19px;font-weight:800;letter-spacing:.02em;color:var(--ink)}
.brand .b-sub{font-size:11.5px;letter-spacing:.2em;color:var(--muted);margin-top:5px}
.brand:hover .b-top{color:var(--ink)}
.brand:hover .b-sub{color:var(--brand)}
.nav-links{display:flex;align-items:center;gap:30px;font-size:14.5px}
.nav-links a{position:relative;padding:8px 0;color:#3A3348;font-weight:500;white-space:nowrap}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--grad);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--ink);font-weight:700}
.nav-right{display:flex;align-items:center;gap:14px}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 20px;border-radius:999px;
  border:1px solid var(--ink);font-size:14px;font-weight:700;color:var(--ink);
  transition:background-color .2s ease,color .2s ease,transform .2s ease;
}
.nav-cta:hover{background:var(--ink);color:#F7F4EE;transform:translateY(-1px)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:50px;padding:0 26px;border-radius:999px;
  font-size:15.5px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:var(--ink);box-shadow:0 12px 28px rgba(18,184,166,.24)}
.btn-primary:hover{color:var(--ink);filter:brightness(.97);transform:translateY(-2px);box-shadow:0 18px 36px rgba(18,184,166,.28)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:rgba(25,20,38,.55);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#F7F4EE;border-color:var(--ink);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}

/* ---------- 面包屑 ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:26px 0 0}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:#C7BFB2}
.crumbs .now{color:#9A938F}

/* ---------- Hero ---------- */
.hero{padding:26px 0 8px}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:48px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  padding:7px 16px;border-radius:999px;background:var(--panel);
  font-size:13px;font-weight:700;color:#0E8F81;letter-spacing:.04em;
}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--grad);display:inline-block}
.hero h1{
  font-size:clamp(34px,4.4vw,52px);
  margin:20px 0 18px;letter-spacing:-.03em;
}
.hero .lede{font-size:16.5px;color:var(--text-2);line-height:1.85;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.badge{
  display:inline-flex;align-items:center;gap:9px;
  height:36px;padding:0 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:13px;color:var(--muted);
  box-shadow:0 8px 20px rgba(25,20,38,.05);
}
.badge .dot{width:7px;height:7px;border-radius:50%;background:var(--grad);flex:0 0 auto}
.badge b{font-size:18px;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.hero-media{position:relative;padding:6px;border-radius:34px;background:var(--grad);box-shadow:var(--shadow)}
.hero-media img{width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:28px}
.hero-chip{
  position:absolute;left:22px;bottom:22px;
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;
  background:rgba(255,255,255,.95);border:1px solid var(--line);
  font-size:13px;font-weight:700;color:var(--ink);
  box-shadow:0 12px 28px rgba(25,20,38,.14);
}
.hero-chip .dot{width:7px;height:7px;border-radius:50%;background:var(--brand)}

/* ---------- 锚点胶囊 ---------- */
.anchor-bar{display:flex;flex-wrap:wrap;gap:10px;padding:34px 0 6px}
.anchor-bar a{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:14px;font-weight:600;color:#3A3348;
  transition:transform .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.anchor-bar a span{font-size:12px;color:var(--brand);font-weight:800}
.anchor-bar a:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:0 12px 24px rgba(18,184,166,.14)}

/* ---------- FAQ 分组 ---------- */
.faq-wrap{padding:44px 0 20px}
.faq-group{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px 34px;box-shadow:var(--shadow);
  transition:box-shadow .24s ease,border-color .24s ease;
}
.faq-group + .faq-group{margin-top:24px}
.faq-group:hover{box-shadow:var(--shadow-h);border-color:rgba(18,184,166,.28)}
.faq-head{display:flex;align-items:flex-start;gap:16px;margin-bottom:8px}
.faq-num{
  flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;background:var(--panel);
  font-size:14px;font-weight:800;color:#0E8F81;letter-spacing:.02em;
}
.faq-head h2{font-size:clamp(22px,2.4vw,28px)}
.faq-head .faq-tip{margin-top:6px;font-size:14.5px;color:var(--muted);line-height:1.8;max-width:780px}
.faq-list{margin-top:14px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:18px 0;font-size:18px;font-weight:700;color:var(--ink);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary .plus{
  position:relative;flex:0 0 auto;width:22px;height:22px;margin-top:5px;
  transition:transform .2s ease;
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-item summary .plus::before{left:50%;top:0;width:2px;height:22px;transform:translateX(-50%)}
.faq-item summary .plus::after{top:50%;left:0;height:2px;width:22px;transform:translateY(-50%)}
.faq-item[open] summary .plus{transform:rotate(45deg)}
.faq-item[open] summary{color:var(--ink)}
.faq-a{padding:0 0 20px;font-size:15px;line-height:1.88;color:var(--text-2);max-width:820px}

/* ---------- 反馈表单 ---------- */
.feedback{padding:56px 0 24px}
.feedback-grid{display:grid;grid-template-columns:.86fr 1.14fr;gap:36px;align-items:start}
.feedback-side{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px;box-shadow:var(--shadow);
}
.feedback-side h2{font-size:clamp(24px,2.6vw,30px);margin-bottom:12px}
.feedback-side p{font-size:15px;color:var(--text-2);line-height:1.85}
.feedback-side img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-sm);margin-top:22px;border:1px solid var(--line)}
.side-list{margin-top:20px;display:grid;gap:12px}
.side-list li{display:flex;gap:12px;font-size:14.5px;color:var(--text-2);line-height:1.75}
.side-list li .tick{
  flex:0 0 auto;width:20px;height:20px;border-radius:50%;
  background:rgba(18,184,166,.14);color:#0E8F81;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:800;margin-top:3px;
}
.form-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:34px;box-shadow:var(--shadow);
}
.form-card h3{font-size:20px;margin-bottom:8px}
.form-card .form-note{font-size:14px;color:var(--muted);margin-bottom:24px;line-height:1.8}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:14px;font-weight:700;color:var(--ink)}
.field label .req{color:var(--accent);margin-left:4px}
.field input,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:12px;background:#fff;
  padding:0 15px;height:48px;font-size:15px;color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:128px;padding:13px 15px;line-height:1.75;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#A9A2B4}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(18,184,166,.18);
}
.consent{
  grid-column:1 / -1;display:flex;align-items:flex-start;gap:10px;
  font-size:13.5px;color:var(--muted);line-height:1.8;
}
.consent input{width:18px;height:18px;margin-top:4px;accent-color:var(--brand);flex:0 0 auto}
.form-actions{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:4px}
.form-actions .hint{font-size:13px;color:var(--muted)}

/* ---------- 深色 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink);color:#F3F0EA;
  border-radius:var(--r-xl);padding:48px 46px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:0 28px 70px rgba(25,20,38,.24);
}
.cta-band::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad)}
.cta-band h2{font-size:clamp(24px,2.8vw,32px);color:#fff;margin-bottom:10px}
.cta-band p{font-size:15px;color:#BDB6CC;line-height:1.85;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px}
.cta-link{font-size:14.5px;font-weight:700;color:#F3F0EA;border-bottom:1px solid rgba(255,255,255,.4);padding-bottom:2px}
.cta-link:hover{color:var(--lime);border-color:var(--lime)}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink);color:#CFC9DA;padding:64px 0 28px;margin-top:80px}
.foot-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1.25fr;gap:36px}
.foot-brand .fb-top{font-size:20px;font-weight:800;color:#fff;letter-spacing:.01em}
.foot-brand .fb-sub{font-size:11.5px;letter-spacing:.2em;color:var(--brand-2);margin-top:6px}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:#A9A2BA;max-width:320px}
.foot-col h4{font-size:14px;color:#fff;letter-spacing:.06em;margin-bottom:16px;font-weight:700}
.foot-col ul li{margin-bottom:10px}
.foot-col a{font-size:14px;color:#B7B1C6}
.foot-col a:hover{color:var(--brand-2)}
.foot-col p{font-size:13.5px;line-height:1.9;color:#A9A2BA}
.foot-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  border-top:1px solid rgba(255,255,255,.12);
  margin-top:44px;padding-top:20px;font-size:13px;color:#8E88A0;
}
.foot-bottom .domain{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.04em}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .hero-grid{gap:34px}
  .hero h1{font-size:clamp(32px,4vw,44px)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .feedback-grid{grid-template-columns:1fr;gap:26px}
}
@media (max-width:900px){
  .nav-links{
    position:fixed;left:0;right:0;top:64px;
    flex-direction:column;align-items:stretch;gap:0;
    background:#F7F4EE;border-bottom:1px solid var(--line);
    padding:6px 24px 20px;display:none;
    box-shadow:0 20px 40px rgba(25,20,38,.12);
  }
  .nav-links.is-open{display:flex}
  .nav-links a{padding:15px 0;border-bottom:1px solid var(--line);font-size:16px}
  .nav-links a:last-child{border-bottom:0}
  .nav-links a::after{display:none}
  .nav-links a.is-active{color:var(--brand)}
  .nav-inner{min-height:64px}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .hero-media{order:2}
  .hero{padding:14px 0 4px}
  .section{padding:52px 0}
  .faq-group{padding:24px 22px}
  .form-card{padding:24px 22px}
  .cta-band{padding:34px 26px}
}
@media (max-width:640px){
  .wrap{padding:0 20px}
  body{font-size:16px}
  .hero h1{font-size:clamp(30px,8vw,38px);margin:16px 0 14px}
  .hero .lede{font-size:15.5px}
  .btn{width:100%;min-height:50px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-badges .badge{height:34px;font-size:12.5px}
  .faq-item summary{font-size:16.5px;padding:16px 0}
  .faq-a{font-size:14.5px}
  .form-grid{grid-template-columns:1fr}
  .form-actions .btn{width:100%}
  .anchor-bar a{padding:9px 15px;font-size:13.5px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{font-size:12.5px}
  .site-foot{padding:48px 0 24px;margin-top:60px}
  .cta-band{border-radius:22px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}