/* roulang page: index */
:root{
  --ink-900:#0E1116;
  --ink-600:#3A4048;
  --ink-400:#7A8089;
  --paper:#FFFFFF;
  --sand:#F4F2ED;
  --line:#E3E0D8;
  --lime:#C7F04A;
  --lime-deep:#A6D121;
  --flare:#FF5A1F;
  --radius-btn:6px;
  --radius-card:12px;
  --radius-img:2px;
  --shadow-1:0 1px 2px rgba(14,17,22,.06);
  --shadow-2:0 18px 40px -24px rgba(14,17,22,.34);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Archivo","DIN Alternate","Helvetica Neue",Arial,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-600);
  background:var(--paper);
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--ink-900);text-decoration:none;transition:color .2s var(--ease);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;}
::selection{background:var(--lime);color:var(--ink-900);}

.container{width:100%;max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:13px 24px;border-radius:var(--radius-btn);
  border:1.5px solid transparent;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  text-decoration:none;
}
.btn:active{transform:translateY(1px);}
.btn-lime{background:var(--lime);color:var(--ink-900);border-color:var(--lime);}
.btn-lime:hover{background:var(--lime-deep);border-color:var(--lime-deep);color:var(--ink-900);transform:translateY(-2px);box-shadow:0 10px 22px -14px rgba(14,17,22,.55);}
.btn-line{background:transparent;color:var(--ink-900);border-color:var(--ink-900);}
.btn-line:hover{background:var(--ink-900);color:#fff;}
.btn-line-light{background:transparent;color:var(--sand);border-color:rgba(244,242,237,.45);}
.btn-line-light:hover{background:var(--sand);color:var(--ink-900);border-color:var(--sand);}
.btn-block{width:100%;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink-900);color:rgba(244,242,237,.62);font-size:12px;letter-spacing:.05em;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:36px;}
.topbar-left{display:flex;align-items:center;gap:12px;white-space:nowrap;overflow:hidden;}
.topbar-domain{font-family:var(--font-num);letter-spacing:.1em;opacity:.55;}
.topbar-left em{font-style:normal;color:rgba(244,242,237,.72);}
.topbar-right{display:flex;align-items:center;gap:18px;white-space:nowrap;}
.topbar-right a{color:rgba(244,242,237,.72);font-size:12px;}
.topbar-right a:hover{color:var(--lime);}
.topbar-pill{
  display:inline-flex;align-items:center;
  background:var(--lime);color:var(--ink-900);
  font-size:12px;font-weight:700;letter-spacing:.04em;
  padding:5px 14px;border-radius:999px;
}
.topbar-pill:hover{background:var(--lime-deep);color:var(--ink-900);}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(244,242,237,.9);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-stuck{box-shadow:var(--shadow-1);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;height:70px;transition:height .25s var(--ease);}
.site-header.is-stuck .nav-inner{height:60px;}
.brand{display:inline-flex;align-items:center;font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--ink-900);}
.brand-mark{width:4px;height:4px;background:var(--lime);display:inline-block;margin-left:7px;flex:0 0 auto;}
.nav-links{display:flex;align-items:center;gap:30px;}
.nav-links a{position:relative;display:inline-block;font-size:15px;font-weight:500;color:var(--ink-900);padding:4px 0;}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--lime-deep);
  transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease);
}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-actions .btn{padding:11px 18px;font-size:14px;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:var(--paper);
  border-radius:var(--radius-btn);padding:11px 10px;cursor:pointer;
}
.nav-toggle span{display:block;height:2px;background:var(--ink-900);border-radius:1px;transition:transform .25s var(--ease),opacity .2s var(--ease);}
.nav-toggle span+span{margin-top:5px;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.nav-drawer{
  display:none;border-top:1px solid var(--line);background:var(--paper);
  padding:8px 0 24px;
}
.nav-drawer.open{display:block;}
.nav-drawer a.dw-link{display:block;font-size:19px;font-weight:600;padding:16px 0;border-bottom:1px solid var(--line);color:var(--ink-900);}
.nav-drawer .btn{margin-top:20px;padding:15px 24px;font-size:16px;}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--sand);padding:72px 0 84px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;top:-60px;right:-80px;width:620px;height:440px;pointer-events:none;
  background-image:repeating-linear-gradient(45deg,rgba(14,17,22,.05) 0 1px,transparent 1px 14px);
  -webkit-mask-image:radial-gradient(closest-side,rgba(0,0,0,.9),transparent);
  mask-image:radial-gradient(closest-side,rgba(0,0,0,.9),transparent);
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.12em;
  color:var(--ink-600);background:var(--paper);border:1px solid var(--line);
  border-radius:999px;padding:6px 14px;margin-bottom:22px;
}
.hero h1{
  font-size:clamp(2rem,4.4vw,3.3rem);line-height:1.08;font-weight:800;letter-spacing:-.02em;
}
.hero-sub{font-size:17px;line-height:1.9;color:var(--ink-600);margin-top:20px;max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{display:flex;gap:48px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line);}
.hero-stats strong{display:block;font-family:var(--font-num);font-size:34px;font-weight:800;line-height:1.1;color:var(--ink-900);font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.hero-stats span{display:block;font-size:12px;letter-spacing:.08em;color:var(--ink-400);margin-top:4px;}
.hero-media{position:relative;border-radius:var(--radius-img);}
.hero-media img{width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:var(--radius-img);}
.badge-cut{
  position:absolute;top:0;left:0;
  background:var(--lime);color:var(--ink-900);
  font-size:12px;font-weight:700;letter-spacing:.1em;
  padding:9px 16px 9px 14px;
  clip-path:polygon(0 0,100% 0,calc(100% - 14px) 100%,0 100%);
}

/* ---------- 倒计时条 ---------- */
.countbar{background:var(--ink-900);color:var(--sand);}
.countbar-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;min-height:84px;padding:12px 0;}
.countbar-label{display:flex;align-items:center;gap:12px;font-size:14px;color:rgba(244,242,237,.78);}
.countbar-label .dot{width:8px;height:8px;background:var(--lime);flex:0 0 auto;}
.countdown{display:flex;align-items:stretch;}
.cd-item{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:0 24px;border-left:1px solid rgba(244,242,237,.16);}
.cd-item:first-child{border-left:0;}
.cd-item span{font-size:11px;letter-spacing:.1em;color:rgba(244,242,237,.5);}
.cd-item strong{font-family:var(--font-num);font-size:30px;font-weight:800;line-height:1.15;font-variant-numeric:tabular-nums;color:var(--sand);}
.cd-item[data-cd="s"] strong{color:var(--flare);}

/* ---------- 通用板块 ---------- */
.section{padding:92px 0;}
.section-sand{background:var(--sand);}
.section-white{background:var(--paper);}
.section-ink{background:var(--ink-900);color:rgba(244,242,237,.78);}
.section-head{max-width:740px;margin-bottom:48px;}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.1rem);line-height:1.24;font-weight:700;}
.section-head p{font-size:16px;line-height:1.9;color:var(--ink-600);margin-top:14px;}
.section-ink .section-head h2{color:var(--sand);}
.section-ink .section-head p{color:rgba(244,242,237,.68);}
.row-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}
.row-head .link-more{
  font-size:14px;font-weight:600;color:var(--ink-900);border-bottom:1px solid var(--line);
  padding-bottom:3px;white-space:nowrap;
}
.row-head .link-more:hover{border-color:var(--lime-deep);}

/* ---------- 活动卖点 ---------- */
.feature-list{display:grid;grid-template-columns:1fr 1fr;column-gap:56px;}
.feature-list li{display:flex;gap:24px;padding:32px 0;border-top:1px solid var(--line);}
.feature-list .num{
  font-family:var(--font-num);font-size:40px;font-weight:800;line-height:1;
  color:var(--lime-deep);flex:0 0 auto;letter-spacing:-.02em;
}
@supports (-webkit-text-stroke:1px #000){
  .feature-list .num{color:transparent;-webkit-text-stroke:1.5px var(--lime-deep);}
}
.feature-list h3{font-size:19px;font-weight:700;line-height:1.4;}
.feature-list p{font-size:15px;line-height:1.85;color:var(--ink-600);margin-top:8px;}

/* ---------- 图片墙 ---------- */
.wall{display:grid;grid-template-columns:repeat(12,1fr);grid-auto-rows:80px;gap:16px;}
.wall-item{position:relative;overflow:hidden;border-radius:var(--radius-img);margin:0;background:var(--line);}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
.wall-item:hover img{transform:scale(1.04);}
.wall-item figcaption{
  position:absolute;left:0;right:0;bottom:0;
  background:var(--ink-900);color:var(--sand);
  font-size:12px;letter-spacing:.04em;padding:9px 14px;
  transform:translateY(101%);transition:transform .28s var(--ease);
}
.wall-item:hover figcaption{transform:translateY(0);}
.wall-item:nth-child(1){grid-column:span 5;grid-row:span 4;}
.wall-item:nth-child(2){grid-column:span 4;grid-row:span 3;}
.wall-item:nth-child(3){grid-column:span 3;grid-row:span 3;}
.wall-item:nth-child(4){grid-column:span 3;grid-row:span 4;}
.wall-item:nth-child(5){grid-column:span 4;grid-row:span 4;}
.wall-item:nth-child(6){grid-column:span 5;grid-row:span 4;}

/* ---------- 报名 ---------- */
.signup-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
.signup-copy h2{color:var(--sand);font-size:clamp(1.5rem,2.6vw,2.1rem);line-height:1.24;}
.signup-copy p{margin-top:16px;color:rgba(244,242,237,.7);font-size:16px;}
.tick-list{margin-top:28px;}
.tick-list li{position:relative;padding-left:22px;margin-top:16px;font-size:15px;line-height:1.8;color:rgba(244,242,237,.82);}
.tick-list li::before{content:"";position:absolute;left:0;top:13px;width:12px;height:1px;background:var(--lime);}
.signup-card{
  background:var(--paper);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);padding:36px;margin-top:-40px;
}
.signup-card h3{font-size:20px;font-weight:700;}
.signup-card .form-note{font-size:12px;color:var(--ink-400);line-height:1.7;margin-top:14px;}
.form-label{display:block;font-size:13px;font-weight:600;color:var(--ink-600);letter-spacing:.02em;margin-bottom:7px;}
.form-control,.form-select{
  width:100%;background:#fff;color:var(--ink-900);
  border:1px solid var(--line);border-radius:var(--radius-btn);
  padding:12px 14px;font-size:15px;font-family:inherit;line-height:1.5;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.form-control:focus,.form-select:focus{outline:none;border-color:var(--lime-deep);box-shadow:0 0 0 3px rgba(199,240,74,.42);}
.form-row{margin-bottom:18px;}
.form-req{color:var(--flare);}
.form-ok{
  display:none;margin-top:16px;font-size:14px;line-height:1.75;
  background:rgba(199,240,74,.28);border-left:3px solid var(--lime-deep);
  padding:12px 14px;color:var(--ink-900);border-radius:0 var(--radius-btn) var(--radius-btn) 0;
}
.form-ok.show{display:block;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:2fr 1fr;gap:64px;align-items:start;}
.faq-side{position:sticky;top:110px;}
.faq-side h2{font-size:clamp(1.4rem,2.3vw,1.9rem);line-height:1.3;}
.faq-side p{margin-top:14px;font-size:15px;line-height:1.9;color:var(--ink-600);}
.faq-side .btn{margin-top:24px;}
.accordion-item{border:0;border-top:1px solid var(--line);background:transparent;}
.accordion-item:last-child{border-bottom:1px solid var(--line);}
.accordion-button{
  background:transparent;box-shadow:none;border:0;
  font-size:17px;font-weight:600;color:var(--ink-900);
  padding:22px 44px 22px 0;border-radius:0;
  transition:color .2s var(--ease),padding-left .25s var(--ease);
}
.accordion-button::after{display:none;}
.accordion-button:not(.collapsed){color:var(--ink-900);padding-left:14px;box-shadow:none;}
.accordion-button:not(.collapsed)::before{content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;background:var(--lime);}
.accordion-button:focus{box-shadow:none;border-color:transparent;}
.accordion-button:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
.acc-icon{
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:18px;height:18px;pointer-events:none;
}
.acc-icon::before,.acc-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink-900);
  transition:transform .25s var(--ease),opacity .2s var(--ease);
}
.acc-icon::before{width:14px;height:2px;transform:translate(-50%,-50%);}
.acc-icon::after{width:2px;height:14px;transform:translate(-50%,-50%);}
.accordion-button:not(.collapsed) .acc-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0;}
.accordion-body{padding:0 40px 24px 14px;font-size:15px;line-height:1.9;color:var(--ink-600);}
.accordion-button{position:relative;}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.news-card{
  display:flex;flex-direction:column;background:var(--paper);
  border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.news-card:hover{transform:translateY(-3px);border-color:rgba(14,17,22,.18);box-shadow:var(--shadow-2);}
.news-thumb{display:block;overflow:hidden;background:var(--line);}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .32s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.badge-cat{
  display:inline-block;align-self:flex-start;
  font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--ink-900);background:rgba(199,240,74,.42);
  border-radius:999px;padding:4px 12px;
}
.news-body h3{font-size:18px;font-weight:700;line-height:1.45;margin-top:14px;}
.news-body h3 a{color:var(--ink-900);}
.news-body h3 a:hover{color:var(--ink-600);}
.news-body h3{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body .excerpt{
  font-size:14px;line-height:1.8;color:var(--ink-600);margin-top:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:18px;border-top:1px solid var(--line);}
.news-foot time{font-family:var(--font-num);font-size:13px;color:var(--ink-400);font-variant-numeric:tabular-nums;letter-spacing:.03em;}
.news-foot a{font-size:13px;font-weight:600;color:var(--ink-900);display:inline-flex;align-items:center;gap:6px;}
.news-foot a i{transition:transform .2s var(--ease);font-size:11px;}
.news-foot a:hover i{transform:translateX(3px);}
.news-empty{
  grid-column:1 / -1;
  border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:56px 24px;text-align:center;color:var(--ink-400);font-size:15px;
}
.news-empty a{display:inline-block;margin-left:8px;color:var(--ink-900);border-bottom:1px solid var(--line);}
.news-empty a:hover{border-color:var(--lime-deep);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(244,242,237,.72);padding:72px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px;}
.footer-logo{display:inline-flex;align-items:center;font-size:19px;font-weight:800;color:var(--sand);}
.footer-brand p{margin-top:16px;line-height:1.9;font-size:14px;color:rgba(244,242,237,.6);max-width:320px;}
.footer-domain{font-family:var(--font-num);letter-spacing:.1em;color:rgba(244,242,237,.42) !important;font-size:13px;margin-top:14px !important;}
.footer-col{border-top:1px solid rgba(255,255,255,.12);padding-top:22px;}
.footer-col h3{font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--sand);margin-bottom:18px;}
.footer-col li{margin-bottom:12px;line-height:1.7;font-size:14px;color:rgba(244,242,237,.66);}
.footer-col a{color:rgba(244,242,237,.66);}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  margin-top:56px;padding:22px 0 26px;border-top:1px solid rgba(255,255,255,.12);
  font-size:12px;color:rgba(244,242,237,.5);
}
.footer-bottom ul{display:flex;gap:22px;}
.footer-bottom a{color:rgba(244,242,237,.5);}
.footer-bottom a:hover{color:var(--lime);}

/* ---------- 动效 ---------- */
@media (prefers-reduced-motion: no-preference){
  html.js .reveal{opacity:0;transform:translateY(10px);transition:opacity .32s var(--ease),transform .32s var(--ease);}
  html.js .reveal.in{opacity:1;transform:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .hero-grid{gap:40px;}
  .signup-grid{gap:40px;}
  .faq-grid{gap:44px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px;}
  .footer-col:last-child{grid-column:span 3;border-top:1px solid rgba(255,255,255,.12);}
}
@media (max-width:991.98px){
  .nav-links,.nav-actions{display:none;}
  .nav-toggle{display:block;}
  .section{padding:64px 0;}
  .hero{padding:48px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media{order:-1;}
  .hero-sub{max-width:none;}
  .signup-grid{grid-template-columns:1fr;gap:32px;}
  .signup-card{margin-top:0;}
  .faq-grid{grid-template-columns:1fr;gap:32px;}
  .faq-side{position:static;}
  .feature-list{grid-template-columns:1fr;column-gap:0;}
  .wall{grid-auto-rows:64px;}
  .wall-item:nth-child(n){grid-column:span 6;grid-row:span 3;}
  .wall-item:nth-child(1){grid-column:span 12;grid-row:span 4;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:767.98px){
  body{font-size:15px;}
  .container{padding-left:18px;padding-right:18px;}
  .topbar-domain,.topbar-right a{display:none;}
  .countbar-inner{flex-direction:column;align-items:flex-start;gap:14px;padding:18px 0;}
  .countdown{width:100%;justify-content:space-between;}
  .cd-item{flex:1;padding:0 10px;border-left:1px solid rgba(244,242,237,.16);}
  .cd-item strong{font-size:24px;}
  .hero-stats{gap:28px;}
  .hero-stats strong{font-size:26px;}
  .hero-cta .btn{flex:1 1 auto;}
  .row-head{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-col:last-child{grid-column:span 2;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px;}
  .news-grid{grid-template-columns:1fr;}
  .accordion-body{padding-right:12px;}
  .signup-card{padding:24px;}
}
@media (max-width:519.98px){
  .hero h1{font-size:1.85rem;}
  .hero-cta{flex-direction:column;}
  .hero-cta .btn{width:100%;}
  .hero-stats{gap:18px;}
  .wall-item:nth-child(n){grid-column:span 12;grid-row:span 3;}
  .wall-item:nth-child(1){grid-row:span 3;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-col:last-child{grid-column:span 1;}
}

/* roulang page: category1 */
:root{
  --ink-900:#0E1116;
  --ink-600:#3A4048;
  --ink-400:#7A8089;
  --paper:#FFFFFF;
  --sand:#F4F2ED;
  --line:#E3E0D8;
  --lime:#C7F04A;
  --lime-deep:#A6D121;
  --flare:#FF5A1F;
  --radius-btn:6px;
  --radius-card:12px;
  --radius-img:2px;
  --shadow-1:0 1px 2px rgba(14,17,22,.06);
  --shadow-2:0 18px 40px -24px rgba(14,17,22,.34);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Archivo","DIN Alternate","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-600);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--ink-900);text-decoration:none;border-bottom:1px solid var(--line);transition:color .2s,border-color .2s}
a:hover{color:var(--ink-900);border-bottom-color:var(--lime-deep)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--lime);outline-offset:3px;border-radius:3px;
}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(2rem,5vw,3.6rem);line-height:1.06;font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(1.5rem,3vw,2.2rem);line-height:1.2}
h3{font-size:1.25rem;line-height:1.35;font-weight:600}
p{margin:0 0 1.4em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-weight:700}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink-900);color:rgba(244,242,237,.92);font-size:12px;letter-spacing:.05em}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;padding-top:4px;padding-bottom:4px}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0}
.topbar-domain{opacity:.6}
.topbar-sep{width:1px;height:12px;background:rgba(244,242,237,.24)}
.topbar-note{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-right{display:flex;align-items:center;gap:16px;flex-shrink:0}
.topbar-right a{color:rgba(244,242,237,.92);border-bottom:none;font-size:12px}
.topbar-right a:hover{color:var(--lime)}
.pill-cta{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--lime);color:var(--ink-900)!important;
  padding:4px 12px;border-radius:999px;font-weight:600;font-size:12px;
  border-bottom:none;transition:background .2s,transform .2s;
}
.pill-cta:hover{background:var(--lime-deep);color:var(--ink-900)!important;transform:translateY(-1px)}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030}
.navbar-main{
  background:rgba(244,242,237,.88);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s,height .25s;
}
.site-header.is-scrolled .navbar-main{box-shadow:var(--shadow-1)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:70px;transition:height .25s}
.site-header.is-scrolled .nav-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:8px;font-size:1.15rem;font-weight:800;color:var(--ink-900);border-bottom:none;letter-spacing:-.01em;flex-shrink:0}
.brand:hover{color:var(--ink-900);border-bottom:none}
.brand-mark{width:8px;height:8px;background:var(--lime);display:inline-block;flex-shrink:0}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{
  position:relative;border-bottom:none;font-weight:500;font-size:.95rem;color:var(--ink-900);
  padding:6px 0;transition:color .2s;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime);
  transform:scaleX(0);transform-origin:left;transition:transform .25s cubic-bezier(.22,.61,.36,1);
}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-lime,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:.9rem;font-weight:600;padding:10px 20px;border-radius:var(--radius-btn);
  border:1.5px solid transparent;cursor:pointer;transition:all .2s cubic-bezier(.22,.61,.36,1);
  text-decoration:none;line-height:1.2;
}
.btn-lime{background:var(--lime);color:var(--ink-900);border-color:var(--lime);border-bottom:1.5px solid var(--lime)}
.btn-lime:hover{background:var(--lime-deep);border-color:var(--lime-deep);color:var(--ink-900);transform:translateY(-1px)}
.btn-lime:active{transform:translateY(1px)}
.btn-line{background:transparent;color:var(--ink-900);border-color:var(--ink-900)}
.btn-line:hover{background:var(--ink-900);color:var(--sand);transform:translateY(-1px)}
.btn-line:active{transform:translateY(1px)}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:var(--paper);
  border-radius:var(--radius-btn);align-items:center;justify-content:center;color:var(--ink-900);cursor:pointer;
}

/* ---------- 通用区块 ---------- */
main{display:block}
.section{padding:96px 0}
.section-sm{padding:64px 0}
.section-dark{background:var(--ink-900);color:rgba(244,242,237,.86)}
.section-dark h2,.section-dark h3{color:var(--sand)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--ink-400);
  text-transform:uppercase;margin-bottom:16px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--lime)}
.lead{font-size:1.05rem;color:var(--ink-600);line-height:1.9}

/* ---------- Hero Z 字块 ---------- */
.hero-cat{padding:64px 0 88px}
.zrow{display:grid;gap:56px;align-items:center}
.zrow-7-5{grid-template-columns:7fr 5fr}
.zrow-5-7{grid-template-columns:5fr 7fr}
.cat-crumb{margin-bottom:22px}
.cat-crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-400)}
.cat-crumb li{display:flex;align-items:center;gap:8px}
.cat-crumb li::after{content:"/";color:var(--line)}
.cat-crumb li:last-child::after{content:""}
.cat-crumb a{border-bottom:none;color:var(--ink-400)}
.cat-crumb a:hover{color:var(--ink-900)}
.cat-crumb .current{color:var(--ink-900);font-weight:600}
.hero-title-sub{margin-top:20px;font-size:1.06rem;max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line)}
.fact-num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-weight:800;font-size:clamp(1.6rem,3vw,2.2rem);color:var(--ink-900);line-height:1.1}
.fact-label{font-size:12px;letter-spacing:.06em;color:var(--ink-400);margin-top:6px}
.img-frame{
  position:relative;overflow:hidden;border-radius:var(--radius-img);background:var(--paper);
  border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.img-frame img{width:100%;height:100%;object-fit:cover;transition:transform .32s cubic-bezier(.22,.61,.36,1)}
.img-frame:hover img{transform:scale(1.04)}
.ratio-4-3{aspect-ratio:4/3}
.ratio-1-1{aspect-ratio:1/1}
.badge-cut{
  position:absolute;top:0;right:0;background:var(--lime);color:var(--ink-900);
  font-size:12px;font-weight:600;letter-spacing:.06em;padding:8px 16px;
  clip-path:polygon(12px 0,100% 0,100% 100%,0 100%);
}

/* ---------- 要点表 ---------- */
.spec-table{border-top:1px solid var(--line)}
.spec-row{
  display:grid;grid-template-columns:240px 1fr;gap:32px;
  padding:22px 0;border-bottom:1px solid var(--line);
}
.spec-key{font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--ink-400)}
.spec-val{color:var(--ink-600);font-size:.98rem}

/* ---------- 流程编号 ---------- */
.steps{display:grid;grid-template-columns:repeat(2,1fr);gap:0 48px;margin-top:48px}
.step{display:grid;grid-template-columns:64px 1fr;gap:20px;padding:26px 0;border-top:1px solid var(--line)}
.step-num{
  font-family:var(--font-num);font-size:1.9rem;font-weight:800;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px var(--lime-deep);
}
.step h3{margin-bottom:6px}
.step p{font-size:.94rem;margin-bottom:0}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr 2fr;gap:64px;align-items:start}
.faq-aside{position:sticky;top:110px}
.accordion-flush-custom{border-top:1px solid var(--line)}
.accordion-flush-custom .accordion-item{background:transparent;border:none;border-bottom:1px solid var(--line);border-radius:0}
.accordion-flush-custom .accordion-button{
  background:transparent;color:var(--ink-900);font-weight:600;font-size:1.02rem;
  padding:22px 44px 22px 0;box-shadow:none;border:none;border-radius:0;position:relative;
  transition:padding-left .2s;
}
.accordion-flush-custom .accordion-button:not(.collapsed){color:var(--ink-900);box-shadow:none;padding-left:14px}
.accordion-flush-custom .accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;background:var(--lime);
}
.accordion-flush-custom .accordion-button::after{
  display:none;
}
.accordion-flush-custom .accordion-button .plus{
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:20px;height:20px;display:flex;align-items:center;justify-content:center;
  color:var(--ink-900);font-size:20px;line-height:1;transition:transform .25s;
}
.accordion-flush-custom .accordion-button:not(.collapsed) .plus{transform:translateY(-50%) rotate(45deg)}
.accordion-flush-custom .accordion-button:focus{box-shadow:none;outline:2px solid var(--lime);outline-offset:3px}
.accordion-flush-custom .accordion-body{padding:0 44px 26px 0;color:var(--ink-600);font-size:.96rem}
.accordion-flush-custom .accordion-button:not(.collapsed) + .accordion-collapse .accordion-body{padding-left:14px}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  border:1.5px solid var(--ink-900);border-radius:var(--radius-card);
  padding:56px;display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center;
  background:var(--paper);box-shadow:var(--shadow-1);
}
.cta-band h2{margin-bottom:14px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(244,242,237,.78);padding:72px 0 28px;font-size:.92rem}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .footer-logo{
  display:inline-flex;align-items:center;gap:8px;color:var(--sand);font-weight:800;font-size:1.1rem;
  border-bottom:none;margin-bottom:16px;
}
.footer-brand .footer-logo:hover{color:var(--lime);border-bottom:none}
.footer-brand .footer-logo .brand-mark{width:8px;height:8px;background:var(--lime)}
.footer-brand p{margin-bottom:10px;line-height:1.8}
.footer-domain{color:rgba(244,242,237,.5);font-family:var(--font-num);font-size:12px;letter-spacing:.04em}
.footer-col h3{
  color:var(--sand);font-size:.82rem;letter-spacing:.08em;font-weight:600;
  padding-top:20px;border-top:1px solid rgba(255,255,255,.12);margin-bottom:18px;
}
.footer-col ul li{margin-bottom:10px;line-height:1.7}
.footer-col a{color:rgba(244,242,237,.78);border-bottom:none}
.footer-col a:hover{color:var(--lime);border-bottom:none}
.footer-bottom{
  margin-top:56px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;font-size:12px;
}
.footer-bottom p{margin:0;color:rgba(244,242,237,.6)}
.footer-bottom ul{display:flex;flex-wrap:wrap;gap:20px}
.footer-bottom a{color:rgba(244,242,237,.6);border-bottom:none}
.footer-bottom a:hover{color:var(--lime);border-bottom:none}

/* ---------- 动效 ---------- */
@media (prefers-reduced-motion: no-preference){
  .reveal{opacity:0;transform:translateY(10px);transition:opacity .32s cubic-bezier(.22,.61,.36,1),transform .32s cubic-bezier(.22,.61,.36,1)}
  .reveal.is-visible{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .faq-wrap{gap:44px}
}
@media (max-width:991px){
  .nav-toggle{display:flex}
  .nav-links{
    position:fixed;inset:0;top:0;left:0;width:100%;height:100vh;
    background:var(--sand);flex-direction:column;align-items:stretch;gap:0;
    padding:88px 24px 24px;transform:translateY(-100%);opacity:0;pointer-events:none;
    transition:transform .3s cubic-bezier(.22,.61,.36,1),opacity .25s;z-index:1040;overflow-y:auto;
  }
  .nav-links.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-links a{font-size:20px;padding:20px 0;border-bottom:1px solid var(--line);width:100%}
  .nav-links a::after{display:none}
  .nav-links a.active{color:var(--ink-900)}
  .nav-links a.active::before{content:"";display:inline-block;width:8px;height:8px;background:var(--lime);margin-right:10px;vertical-align:middle}
  .nav-actions .btn-line{display:none}
  .nav-actions .btn-lime{padding:9px 16px;font-size:.86rem}
  .nav-toggle{position:relative;z-index:1050}
  .section{padding:64px 0}
  .section-sm{padding:52px 0}
  .hero-cat{padding:44px 0 64px}
  .zrow-7-5,.zrow-5-7{grid-template-columns:1fr;gap:36px}
  .zrow-reverse .img-col{order:-1}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .faq-aside{position:static}
  .cta-band{grid-template-columns:1fr;padding:40px 28px}
  .cta-actions{justify-content:flex-start}
  .steps{grid-template-columns:1fr;margin-top:32px}
  .spec-row{grid-template-columns:1fr;gap:6px;padding:18px 0}
}
@media (max-width:767px){
  .topbar-left .topbar-domain,.topbar-left .topbar-sep,.topbar-right .topbar-link{display:none}
  .topbar-inner{justify-content:space-between}
  .hero-facts{grid-template-columns:1fr 1fr;gap:20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .section{padding:56px 0}
}
@media (max-width:419px){
  h1{font-size:1.75rem}
  .hero-actions .btn-lime,.hero-actions .btn-line,.cta-actions .btn-lime,.cta-actions .btn-line{width:100%}
  .cta-band{padding:32px 20px}
  .hero-facts{grid-template-columns:1fr}
}

.form-control,.form-select{
  border:1px solid var(--line);border-radius:var(--radius-btn);background:var(--paper);
  padding:11px 14px;font-size:.95rem;color:var(--ink-900);box-shadow:none;
  transition:border-color .2s,box-shadow .2s;
}
.form-control::placeholder{color:var(--ink-400);opacity:.85}
.form-control:focus,.form-select:focus{
  border-color:var(--lime);box-shadow:0 0 0 2px rgba(199,240,74,.55);outline:none;color:var(--ink-900);
}
.form-label{display:block;margin-bottom:6px;font-weight:600}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1!important;transform:none!important}
}

/* roulang page: article */
:root{
  --ink-900:#0E1116;
  --ink-600:#3A4048;
  --ink-400:#7A8089;
  --paper:#FFFFFF;
  --sand:#F4F2ED;
  --line:#E3E0D8;
  --lime:#C7F04A;
  --lime-deep:#A6D121;
  --flare:#FF5A1F;
  --radius-btn:6px;
  --radius-card:12px;
  --radius-img:2px;
  --shadow-1:0 1px 2px rgba(14,17,22,.06);
  --shadow-2:0 18px 40px -24px rgba(14,17,22,.34);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-600);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink-900);text-decoration:none;transition:color .2s ease}
h1,h2,h3,h4{color:var(--ink-900);font-weight:700;letter-spacing:-.01em;margin:0}
p{margin:0 0 1.4em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--lime-deep);outline-offset:3px}
.num{font-family:Archivo,"DIN Alternate","Helvetica Neue",Arial,sans-serif;font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px}

/* 顶部信息条 */
.topbar{background:var(--ink-900);color:rgba(244,242,237,.72);font-size:12px;letter-spacing:.05em}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px}
.topbar-left{display:flex;align-items:center;gap:14px;overflow:hidden;white-space:nowrap}
.topbar-domain{opacity:.6}
.topbar-note{opacity:.85}
.topbar-right{display:flex;align-items:center;gap:18px;white-space:nowrap}
.topbar-right a{color:rgba(244,242,237,.8)}
.topbar-right a:hover{color:var(--lime)}
.topbar .pill{background:var(--lime);color:var(--ink-900);font-weight:700;padding:5px 13px;border-radius:999px;letter-spacing:.04em}
.topbar .pill:hover{background:var(--lime-deep);color:var(--ink-900)}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(244,242,237,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.nav-inner{display:flex;align-items:center;gap:28px;min-height:70px;position:relative;transition:min-height .2s ease}
.site-header.is-scrolled .nav-inner{min-height:60px}
.brand{display:inline-flex;align-items:center;gap:8px;font-size:19px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em;white-space:nowrap}
.brand-mark{width:4px;height:4px;background:var(--lime);display:inline-block}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{position:relative;font-size:15px;font-weight:500;color:var(--ink-600);padding:6px 0}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .24s cubic-bezier(.22,.61,.36,1)}
.nav-links a:hover{color:var(--ink-900)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink-900);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{display:none;margin-left:auto;width:44px;height:44px;border:1px solid var(--line);background:var(--paper);border-radius:var(--radius-btn);color:var(--ink-900);font-size:17px;align-items:center;justify-content:center;cursor:pointer;transition:border-color .2s ease}
.nav-toggle:hover{border-color:var(--ink-900)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:14px;font-weight:700;line-height:1;padding:13px 22px;border-radius:var(--radius-btn);border:1.5px solid transparent;cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s cubic-bezier(.22,.61,.36,1)}
.btn-lime{background:var(--lime);border-color:var(--lime);color:var(--ink-900)}
.btn-lime:hover{background:var(--lime-deep);border-color:var(--lime-deep);color:var(--ink-900);transform:translateY(-2px)}
.btn-lime:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--ink-900);color:var(--ink-900)}
.btn-ghost:hover{background:var(--ink-900);color:var(--sand)}
.btn-sm{padding:10px 16px;font-size:13px}

/* 阅读进度 */
.reading-progress{position:fixed;top:0;left:0;height:2px;width:0;background:var(--lime);z-index:1041}

/* 文章头部 */
.article-hero{padding:44px 0 30px}
.breadcrumb-nav{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-400);margin-bottom:22px}
.breadcrumb-nav a{color:var(--ink-400)}
.breadcrumb-nav a:hover{color:var(--ink-900)}
.breadcrumb-nav .sep{color:#C9C5BB}
.breadcrumb-nav .current{color:var(--ink-600);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{font-size:clamp(1.7rem,3.6vw,2.6rem);line-height:1.18;font-weight:800;letter-spacing:-.02em;margin-bottom:22px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:16px;font-size:13px;color:var(--ink-400);padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.badge-cat{display:inline-block;max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;background:var(--lime);color:var(--ink-900);font-size:12px;font-weight:700;letter-spacing:.06em;padding:4px 11px;border-radius:999px}
.article-lead{margin-top:28px;font-size:18px;line-height:1.85;color:var(--ink-900);font-weight:500;border-left:3px solid var(--lime);padding-left:16px}

/* 正文布局 */
.article-main{padding:26px 0 76px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 264px;gap:56px;align-items:start}
.article-body{max-width:800px;min-width:0}
.article-side{position:sticky;top:100px;display:flex;flex-direction:column;gap:20px}

/* 正文排版 */
.article-prose{font-size:17.5px;line-height:1.9;color:var(--ink-600);overflow-wrap:break-word}
.article-prose p{margin:0 0 1.5em}
.article-prose h2{position:relative;font-size:clamp(1.35rem,2.4vw,1.85rem);line-height:1.3;margin:2.6em 0 .8em;padding-left:24px}
.article-prose h2::before{content:"";position:absolute;left:0;top:.62em;width:16px;height:3px;background:var(--lime)}
.article-prose h3{font-size:1.15rem;line-height:1.4;margin:2em 0 .6em}
.article-prose h4{font-size:1.02rem;margin:1.6em 0 .5em}
.article-prose a{color:var(--ink-900);text-decoration:underline;text-decoration-color:var(--lime-deep);text-underline-offset:3px}
.article-prose a:hover{text-decoration-color:var(--ink-900)}
.article-prose ul,.article-prose ol{padding-left:1.4em;margin:0 0 1.5em}
.article-prose ul{list-style:disc}
.article-prose ol{list-style:decimal}
.article-prose li{margin-bottom:.55em}
.article-prose li::marker{color:var(--lime-deep)}
.article-prose blockquote{background:var(--sand);border-left:3px solid var(--line);padding:18px 22px;margin:1.6em 0;color:var(--ink-600);border-radius:0 var(--radius-card) var(--radius-card) 0}
.article-prose blockquote p:last-child{margin-bottom:0}
.article-prose img{border-radius:var(--radius-img);margin:1.6em 0;width:100%}
.article-prose figure{margin:1.8em 0}
.article-prose figcaption{font-size:12.5px;color:var(--ink-400);margin-top:10px;text-align:center}
.article-prose table{width:100%;border-collapse:collapse;margin:1.8em 0;font-size:15px}
.article-prose th{background:var(--sand);color:var(--ink-900);font-weight:700;text-align:left}
.article-prose th,.article-prose td{border-bottom:1px solid var(--line);padding:11px 14px}
.article-prose pre{background:var(--ink-900);color:#F4F2ED;border-radius:12px;padding:16px;overflow:auto;font-size:14px;line-height:1.7;margin:1.8em 0}
.article-prose code{font-family:Archivo,"DIN Alternate",Consolas,monospace;font-size:.92em}
.article-prose :not(pre) > code{background:var(--sand);border:1px solid var(--line);border-radius:4px;padding:1px 6px;color:var(--ink-900)}
.article-prose hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}

/* 内容缺失 */
.article-empty{border:1px dashed var(--line);border-radius:var(--radius-card);background:var(--paper);padding:44px 32px;text-align:center}
.article-empty h2{font-size:1.4rem;margin-bottom:14px}
.article-empty p{max-width:520px;margin:0 auto 24px;font-size:15px}

/* 标签与操作 */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
.tag{display:inline-flex;align-items:center;font-size:12px;font-weight:600;letter-spacing:.05em;color:var(--ink-600);background:var(--paper);border:1px solid var(--line);padding:5px 12px;border-radius:999px;transition:border-color .2s ease,color .2s ease}
.tag:hover{border-color:var(--ink-900);color:var(--ink-900)}
.article-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:22px}

/* 侧栏 */
.side-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-1)}
.side-card h3{font-size:13px;letter-spacing:.08em;margin-bottom:14px}
.side-list li{border-top:1px solid var(--line);padding:12px 0}
.side-list li:first-child{border-top:0;padding-top:0}
.side-list li:last-child{padding-bottom:0}
.side-list a{font-size:14px;color:var(--ink-600);display:block;line-height:1.6}
.side-list a:hover{color:var(--ink-900)}
.side-list .plain{font-size:13.5px;line-height:1.7;color:var(--ink-600)}

/* 通用板块 */
.section{padding:76px 0}
.section-paper{background:var(--paper)}
.section-sand{background:var(--sand)}
.section-dark{background:var(--ink-900);color:rgba(244,242,237,.78)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;flex-wrap:wrap}
.section-head h2{font-size:clamp(1.4rem,2.6vw,2rem);letter-spacing:-.02em;margin-bottom:8px}
.section-head p{font-size:14.5px;margin:0;max-width:640px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}

/* 继续阅读卡片 */
.read-card{display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);color:var(--ink-600);transition:transform .2s cubic-bezier(.22,.61,.36,1),border-color .2s ease}
.read-card:hover{transform:translateY(-3px);border-color:rgba(14,17,22,.18)}
.read-thumb{overflow:hidden;aspect-ratio:16/9;background:var(--sand)}
.read-thumb img{width:100%;height:100%;object-fit:cover;border-radius:var(--radius-img);transition:transform .32s ease}
.read-card:hover .read-thumb img{transform:scale(1.04)}
.read-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.read-body h3{font-size:1.15rem;margin-bottom:10px}
.read-body p{font-size:14px;margin-bottom:18px}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--ink-900);margin-top:auto}
.text-link i{font-size:11px;transition:transform .2s ease}
.text-link:hover i{transform:translateX(4px)}

/* 推荐小卡 */
.mini-card{display:block;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-1);color:var(--ink-600);transition:transform .2s cubic-bezier(.22,.61,.36,1),border-color .2s ease}
.mini-card:hover{transform:translateY(-3px);border-color:rgba(14,17,22,.18)}
.mini-card h3{font-size:1.05rem;line-height:1.4;margin:12px 0 8px}
.mini-card p{font-size:13.5px;margin-bottom:14px}
.mini-date{font-size:12px;color:var(--ink-400);letter-spacing:.04em}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:minmax(0,320px) minmax(0,1fr);gap:56px;align-items:start}
.faq-aside{position:sticky;top:100px}
.faq-aside h2{font-size:clamp(1.4rem,2.6vw,2rem);margin-bottom:14px}
.faq-aside p{font-size:14.5px}
.accordion-item{border:0;border-top:1px solid var(--line);background:transparent}
.accordion-item:last-child{border-bottom:1px solid var(--line)}
.accordion-button{position:relative;background:transparent;color:var(--ink-900);font-weight:600;font-size:1.02rem;line-height:1.5;padding:20px 44px 20px 14px;box-shadow:none;border-radius:0;transition:padding-left .2s ease,color .2s ease}
.accordion-button::after{content:"+";background-image:none;font-size:20px;font-weight:400;color:var(--ink-400);width:auto;height:auto;position:absolute;right:12px;top:50%;transform:translateY(-50%);line-height:1;transition:transform .24s ease,color .2s ease}
.accordion-button:not(.collapsed){background:transparent;color:var(--ink-900);padding-left:20px}
.accordion-button:not(.collapsed)::after{content:"+";transform:translateY(-50%) rotate(45deg);color:var(--lime-deep)}
.accordion-button:not(.collapsed)::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;background:var(--lime)}
.accordion-button:hover{color:var(--ink-900)}
.accordion-button:focus{box-shadow:none;border-color:transparent}
.accordion-body{padding:0 44px 24px 20px;font-size:15px;color:var(--ink-600)}

/* CTA 深色条 */
.cta-band{padding:76px 0}
.cta-inner{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:center}
.cta-band h2{color:#FFFFFF;font-size:clamp(1.5rem,3vw,2.2rem);line-height:1.22;margin-bottom:18px}
.cta-band p{color:rgba(244,242,237,.76);font-size:15px}
.cta-points li{position:relative;padding-left:22px;margin-bottom:12px;font-size:15px;color:rgba(244,242,237,.78)}
.cta-points li::before{content:"";position:absolute;left:0;top:.78em;width:12px;height:1.5px;background:var(--lime)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
.cta-band .btn-ghost{border-color:rgba(244,242,237,.6);color:#F4F2ED}
.cta-band .btn-ghost:hover{background:var(--lime);border-color:var(--lime);color:var(--ink-900)}

/* 页脚 */
.site-footer{background:var(--ink-900);color:rgba(244,242,237,.7);padding:64px 0 28px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:36px;padding-bottom:40px}
.footer-logo{display:inline-flex;align-items:center;gap:8px;color:#FFFFFF;font-size:18px;font-weight:800;letter-spacing:-.01em}
.footer-brand p{margin:16px 0 0;font-size:13.5px;line-height:1.8}
.footer-domain{color:rgba(244,242,237,.45);font-size:12.5px;letter-spacing:.05em;margin-top:14px}
.footer-col h3{color:#FFFFFF;font-size:13px;letter-spacing:.08em;font-weight:700;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px;font-size:13.5px}
.footer-col a{color:rgba(244,242,237,.7)}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;border-top:1px solid rgba(255,255,255,.12);padding-top:22px;font-size:12px}
.footer-bottom p{margin:0;color:rgba(244,242,237,.5)}
.footer-bottom ul{display:flex;gap:18px}
.footer-bottom a{color:rgba(244,242,237,.55)}
.footer-bottom a:hover{color:var(--lime)}

/* 显现动效 */
@media (prefers-reduced-motion: no-preference){
  .reveal{opacity:0;transform:translateY(10px);transition:opacity .32s ease,transform .32s cubic-bezier(.22,.61,.36,1)}
  .reveal.is-visible{opacity:1;transform:none}
}

/* 响应式 */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px}
  .article-side{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .faq-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .faq-aside{position:static}
}
@media (max-width:991.98px){
  .nav-toggle{display:inline-flex}
  .nav-links{position:absolute;top:100%;left:24px;right:24px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-2);flex-direction:column;align-items:stretch;gap:0;padding:8px 20px 18px;margin-top:10px}
  .nav-links a{width:100%;padding:14px 0;border-bottom:1px solid var(--line);font-size:17px}
  .nav-links a:last-child{border-bottom:0}
  .nav-links a::after{display:none}
  .nav-actions .btn-ghost{display:none}
  .cta-inner{grid-template-columns:minmax(0,1fr)}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:992px){
  .nav-links.collapse{display:flex;height:auto;visibility:visible}
}
@media (max-width:767.98px){
  .topbar-domain{display:none}
  .topbar-note{font-size:11px}
  .topbar-right a:not(.pill){display:none}
  .article-hero{padding:32px 0 24px}
  .section{padding:56px 0}
  .article-lead{font-size:17px}
  .grid-2,.grid-3{grid-template-columns:minmax(0,1fr)}
  .article-side{grid-template-columns:minmax(0,1fr)}
  .article-prose{font-size:16.5px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:420px){
  .article-title{font-size:1.55rem}
  .btn{width:100%}
  .article-actions .btn,.cta-actions .btn{width:100%}
  .article-meta{gap:10px;font-size:12.5px}
}

/* roulang page: category2 */
:root{
  --ink-900:#0E1116;
  --ink-600:#3A4048;
  --ink-400:#7A8089;
  --paper:#FFFFFF;
  --sand:#F4F2ED;
  --line:#E3E0D8;
  --lime:#C7F04A;
  --lime-deep:#A6D121;
  --flare:#FF5A1F;
  --radius-btn:6px;
  --radius-card:12px;
  --radius-img:2px;
  --shadow-1:0 1px 2px rgba(14,17,22,.06);
  --shadow-2:0 18px 40px -24px rgba(14,17,22,.34);
  --num-font:"Archivo","DIN Alternate","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-img)}
a{
  color:var(--ink-900);
  text-decoration:underline;
  text-decoration-color:var(--line);
  text-decoration-thickness:1px;
  text-underline-offset:3px;
  transition:text-decoration-color .2s ease,color .2s ease;
}
a:hover{text-decoration-color:var(--lime-deep)}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1.4em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px}
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px}
.num{font-family:var(--num-font);font-variant-numeric:tabular-nums;font-weight:700}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink-900);color:rgba(244,242,237,.86);font-size:12px;letter-spacing:.05em}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:20px;height:36px}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0}
.topbar-domain{opacity:.6}
.topbar-note{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-right{display:flex;align-items:center;gap:18px}
.topbar-right a{color:rgba(244,242,237,.86);text-decoration:none;white-space:nowrap}
.topbar-right a:hover{color:var(--lime)}
.topbar-pill{
  background:var(--lime);color:var(--ink-900)!important;border-radius:999px;
  padding:4px 14px;font-weight:600;line-height:1.6;
}
.topbar-pill:hover{background:var(--lime-deep);color:var(--ink-900)!important}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(244,242,237,.9);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:70px;transition:height .25s ease}
.site-header.is-scrolled .nav-inner{height:60px}
.brand-logo{
  display:inline-flex;align-items:center;gap:8px;
  font-size:19px;font-weight:800;letter-spacing:-.01em;
  text-decoration:none;color:var(--ink-900);white-space:nowrap;
}
.brand-mark{width:4px;height:4px;background:var(--lime);display:inline-block;flex:0 0 4px}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-600);
  text-decoration:none;padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime);
  transform:scaleX(0);transform-origin:left;transition:transform .24s cubic-bezier(.22,.61,.36,1);
}
.nav-links a:hover{color:var(--ink-900)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink-900);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--paper);
  border-radius:var(--radius-btn);position:relative;cursor:pointer;
}
.nav-toggle span{
  position:absolute;left:12px;right:12px;height:2px;background:var(--ink-900);
  transition:transform .24s ease,opacity .24s ease;
}
.nav-toggle span:nth-child(1){top:15px}
.nav-toggle span:nth-child(2){top:21px}
.nav-toggle span:nth-child(3){top:27px}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 移动抽屉 ---------- */
.mobile-nav{
  position:fixed;inset:0;z-index:1040;background:var(--sand);
  padding:92px 24px 32px;display:none;flex-direction:column;justify-content:space-between;
  transform:translateY(-100%);opacity:0;visibility:hidden;
  transition:transform .3s cubic-bezier(.22,.61,.36,1),opacity .3s ease,visibility .3s;
}
.mobile-nav.is-open{transform:none;opacity:1;visibility:visible}
.mobile-links{display:flex;flex-direction:column}
.mobile-links a{
  font-size:20px;font-weight:600;color:var(--ink-900);text-decoration:none;
  padding:20px 0;border-bottom:1px solid var(--line);
}
.mobile-links a.active{color:var(--ink-900)}
.mobile-links a.active::before{content:"";display:inline-block;width:4px;height:4px;background:var(--lime);margin-right:10px;vertical-align:middle}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-btn);border:1.5px solid transparent;
  font-size:15px;font-weight:600;line-height:1.4;cursor:pointer;text-decoration:none;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .12s ease;
}
.btn:active{transform:translateY(1px)}
.btn-lime{background:var(--lime);color:var(--ink-900);border-color:var(--lime)}
.btn-lime:hover{background:var(--lime-deep);border-color:var(--lime-deep);color:var(--ink-900)}
.btn-outline{background:transparent;color:var(--ink-900);border-color:var(--ink-900)}
.btn-outline:hover{background:var(--ink-900);color:var(--paper)}
.btn-outline-light{background:transparent;color:var(--paper);border-color:rgba(244,242,237,.55)}
.btn-outline-light:hover{background:var(--paper);color:var(--ink-900);border-color:var(--paper)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}

/* ---------- 分类首屏 ---------- */
.cat-hero{
  position:relative;display:flex;align-items:center;justify-content:center;text-align:center;
  aspect-ratio:21/9;min-height:400px;overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  color:#fff;
}
.cat-hero::after{content:"";position:absolute;inset:0;background:rgba(14,17,22,.62)}
.cat-hero-inner{position:relative;z-index:2;max-width:860px;padding:0 24px}
.crumb{display:flex;justify-content:center;gap:10px;font-size:12px;letter-spacing:.05em;color:rgba(255,255,255,.72);margin-bottom:22px}
.crumb a{color:rgba(255,255,255,.72);text-decoration:none}
.crumb a:hover{color:var(--lime)}
.crumb span.sep{opacity:.5}
.crumb .current{color:rgba(255,255,255,.92)}
.cat-hero h1{
  font-size:clamp(2rem,5vw,3.4rem);line-height:1.06;font-weight:800;
  letter-spacing:-.02em;color:#fff;margin-bottom:20px;
}
.cat-hero .hero-desc{
  color:rgba(255,255,255,.86);font-size:17px;line-height:1.85;max-width:660px;margin:0 auto 30px;
}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- 数据条 ---------- */
.stat-bar{background:var(--ink-900);color:var(--paper);padding:34px 0}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stat-item{padding:6px 26px;border-left:1px solid rgba(244,242,237,.14)}
.stat-item:first-child{border-left:none;padding-left:0}
.stat-item:last-child{padding-right:0}
.stat-value{font-family:var(--num-font);font-variant-numeric:tabular-nums;font-weight:800;font-size:30px;line-height:1.2;color:var(--lime)}
.stat-value small{font-size:14px;font-weight:600;margin-left:4px;color:rgba(244,242,237,.72)}
.stat-label{font-size:12px;letter-spacing:.08em;color:rgba(244,242,237,.62);margin:6px 0 0}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--ink-400);margin-bottom:12px;
}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(1.5rem,3vw,2.2rem);line-height:1.2;margin-bottom:14px}
.section-head p{color:var(--ink-600);margin:0}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-note{font-size:13px;color:var(--ink-400);margin:0;white-space:nowrap}

/* ---------- 长文 + 图注 ---------- */
.article-grid{
  display:grid;grid-template-columns:minmax(0,720px) 250px;
  gap:64px;justify-content:center;align-items:start;
}
.article-body h2{font-size:1.45rem;line-height:1.3;margin:2.4em 0 .7em;position:relative;padding-left:24px}
.article-body h2:first-child{margin-top:0}
.article-body h2::before{content:"";position:absolute;left:0;top:.45em;width:14px;height:3px;background:var(--lime)}
.article-body h3{font-size:1.1rem;margin:1.8em 0 .5em}
.article-body p{color:var(--ink-600);font-size:17px;line-height:1.9;margin-bottom:1.5em}
.article-body strong{color:var(--ink-900)}
.note-list{margin:0 0 1.6em;padding-left:1.4em;list-style:none}
.note-list li{position:relative;color:var(--ink-600);font-size:16.5px;line-height:1.9;padding-left:16px;margin-bottom:8px}
.note-list li::before{content:"";position:absolute;left:0;top:.85em;width:8px;height:2px;background:var(--lime-deep)}
.figure-aside{position:sticky;top:100px}
.figure-aside figure{margin:0}
.figure-aside img{width:100%;aspect-ratio:1/1;object-fit:cover}
.figure-aside figcaption{font-size:12px;color:var(--ink-400);line-height:1.7;margin-top:10px}
.aside-card{
  margin-top:20px;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:18px;box-shadow:var(--shadow-1);
}
.aside-card h4{font-size:13px;letter-spacing:.06em;color:var(--ink-400);font-weight:600;margin-bottom:10px}
.aside-card ul li{font-size:14px;color:var(--ink-600);padding:7px 0;border-top:1px solid var(--line);line-height:1.7}
.aside-card ul li:first-child{border-top:none;padding-top:0}

/* ---------- 流程 ---------- */
.flow-section{background:var(--ink-900);color:var(--paper);padding:96px 0}
.flow-section .eyebrow{color:rgba(244,242,237,.55)}
.flow-section h2{color:#fff;font-size:clamp(1.5rem,3vw,2.2rem);line-height:1.2}
.flow-section .section-head p{color:rgba(244,242,237,.7)}
.flow-list{border-top:1px solid rgba(244,242,237,.14)}
.flow-list li{
  display:grid;grid-template-columns:120px 1fr;gap:32px;align-items:start;
  padding:30px 0;border-bottom:1px solid rgba(244,242,237,.14);
}
.flow-num{
  font-family:var(--num-font);font-size:46px;font-weight:800;line-height:1;
  color:var(--lime);letter-spacing:-.02em;
}
@supports (-webkit-text-stroke:1px #000){
  .flow-num{color:transparent;-webkit-text-stroke:1.4px var(--lime)}
}
.flow-list h3{color:#fff;font-size:1.2rem;margin-bottom:8px}
.flow-list p{color:rgba(244,242,237,.72);margin:0;font-size:15.5px;line-height:1.85}

/* ---------- 规格要点 ---------- */
.spec-list{border-bottom:1px solid var(--line)}
.spec-row{display:grid;grid-template-columns:220px 1fr;gap:36px;padding:24px 0;border-top:1px solid var(--line)}
.spec-row dt{font-weight:600;font-size:16px;color:var(--ink-900)}
.spec-row dd{margin:0;color:var(--ink-600);font-size:16px;line-height:1.85}

/* ---------- FAQ ---------- */
.faq-section{background:var(--paper);padding:96px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.faq-grid{display:grid;grid-template-columns:0.85fr 1.55fr;gap:64px;align-items:start}
.faq-aside{position:sticky;top:100px}
.faq-aside h2{font-size:clamp(1.5rem,3vw,2.1rem);line-height:1.2;margin-bottom:14px}
.faq-aside p{color:var(--ink-600);font-size:15.5px;margin:0}
.accordion{--bs-accordion-border-width:0;--bs-accordion-bg:transparent}
.accordion-item{background:transparent;border:none;border-top:1px solid var(--line)}
.accordion-item:last-child{border-bottom:1px solid var(--line)}
.accordion-header{margin:0}
.accordion-button{
  position:relative;width:100%;background:transparent;border:none;box-shadow:none!important;
  color:var(--ink-900);font-size:17px;font-weight:600;text-align:left;
  padding:22px 44px 22px 0;border-radius:0;transition:padding .2s ease,color .2s ease;
}
.accordion-button:hover{color:var(--ink-900)}
.accordion-button:not(.collapsed){
  background:transparent;color:var(--ink-900);
  box-shadow:inset 3px 0 0 var(--lime)!important;padding-left:18px;
}
.accordion-button::after{display:none}
.acc-icon{position:absolute;right:8px;top:50%;width:20px;height:20px;transform:translateY(-50%)}
.acc-icon::before,.acc-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--ink-900);transition:transform .24s ease,opacity .24s ease}
.acc-icon::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.acc-icon::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.accordion-button:not(.collapsed) .acc-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.accordion-body{padding:0 44px 26px 0;color:var(--ink-600);font-size:15.5px;line-height:1.9}
.accordion-button:not(.collapsed) + .accordion-collapse .accordion-body{padding-left:18px}

/* ---------- 批次卡片带 ---------- */
.batch-section{padding:88px 0}
.strip-wrap{position:relative}
.strip{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 4px 20px;-webkit-overflow-scrolling:touch;
}
.strip::-webkit-scrollbar{height:6px}
.strip::-webkit-scrollbar-track{background:var(--line);border-radius:999px}
.strip::-webkit-scrollbar-thumb{background:var(--ink-400);border-radius:999px}
.strip-card{
  flex:0 0 280px;scroll-snap-align:start;background:var(--paper);
  border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;
  box-shadow:var(--shadow-1);transition:transform .2s cubic-bezier(.22,.61,.36,1),border-color .2s ease,box-shadow .2s ease;
}
.strip-card:hover{transform:translateY(-3px);border-color:rgba(14,17,22,.18);box-shadow:var(--shadow-2)}
.badge-tag{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.08em;
  padding:3px 10px;border-radius:999px;background:var(--sand);color:var(--ink-600);
  border:1px solid var(--line);
}
.badge-tag.tag-lime{background:rgba(199,240,74,.28);border-color:rgba(166,209,33,.55);color:var(--ink-900)}
.badge-tag.tag-flare{background:rgba(255,90,31,.12);border-color:rgba(255,90,31,.4);color:var(--flare)}
.strip-card h3{font-size:17px;margin:14px 0 10px;line-height:1.4}
.strip-card p{font-size:14.5px;color:var(--ink-600);margin:0 0 18px;line-height:1.8}
.strip-meta{
  display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line);padding-top:12px;font-size:12px;color:var(--ink-400);
}
.strip-meta .num{color:var(--ink-600)}

/* ---------- CTA ---------- */
.cta-band{background:var(--ink-900);color:var(--paper);padding:76px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:48px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:clamp(1.4rem,2.6vw,2rem);line-height:1.25;margin-bottom:12px;max-width:620px}
.cta-inner p{color:rgba(244,242,237,.72);margin:0;max-width:620px;font-size:15.5px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(244,242,237,.82);padding:72px 0 28px;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;gap:48px;padding-bottom:48px}
.footer-logo{
  display:inline-flex;align-items:center;gap:8px;color:#fff;font-size:19px;font-weight:800;
  text-decoration:none;margin-bottom:16px;
}
.footer-logo:hover{color:#fff}
.footer-brand p{color:rgba(244,242,237,.66);line-height:1.85;margin:0 0 14px;font-size:14.5px}
.footer-domain{font-family:var(--num-font);color:rgba(244,242,237,.5)!important;letter-spacing:.04em;font-size:13px}
.footer-col h3{
  font-size:13px;font-weight:600;letter-spacing:.08em;color:rgba(244,242,237,.5);
  margin-bottom:18px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);
}
.footer-col ul li{margin-bottom:11px;line-height:1.7;color:rgba(244,242,237,.72)}
.footer-col ul li a{color:rgba(244,242,237,.82);text-decoration:none}
.footer-col ul li a:hover{color:var(--lime)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding-top:22px;font-size:12px;color:rgba(244,242,237,.56);
}
.footer-bottom p{margin:0}
.footer-bottom ul{display:flex;gap:22px;flex-wrap:wrap}
.footer-bottom ul a{color:rgba(244,242,237,.56);text-decoration:none}
.footer-bottom ul a:hover{color:var(--lime)}

/* ---------- 动效 ---------- */
@media (prefers-reduced-motion: no-preference){
  html.js .reveal{opacity:0;transform:translateY(10px);transition:opacity .32s ease,transform .32s ease}
  html.js .reveal.is-visible{opacity:1;transform:none}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-grid{grid-template-columns:minmax(0,1fr) 230px;gap:40px}
  .spec-row{grid-template-columns:180px 1fr;gap:28px}
  .faq-grid{gap:44px}
}
@media (max-width:991px){
  .nav-links,.nav-actions{display:none}
  .nav-toggle{display:block}
  .mobile-nav{display:flex}
  .stat-grid{grid-template-columns:repeat(2,1fr);row-gap:26px}
  .stat-item{border-left:none;padding:0 0 0 18px;border-left:1px solid rgba(244,242,237,.14)}
  .stat-item:nth-child(odd){border-left:none;padding-left:0}
  .article-grid{grid-template-columns:minmax(0,1fr);gap:36px}
  .figure-aside{position:static}
  .figure-aside img{aspect-ratio:16/9}
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .faq-aside{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .section,.flow-section,.faq-section{padding:64px 0}
  .cta-band{padding:60px 0}
}
@media (max-width:767px){
  .topbar-domain,.topbar-right a:not(.topbar-pill){display:none}
  .cat-hero{aspect-ratio:auto;min-height:0;padding:76px 0}
  .cat-hero .hero-desc{font-size:16px}
  .hero-actions .btn{width:100%}
  .section,.flow-section,.faq-section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .flow-list li{grid-template-columns:1fr;gap:12px;padding:24px 0}
  .flow-num{font-size:34px}
  .spec-row{grid-template-columns:1fr;gap:8px;padding:20px 0}
  .cta-inner{gap:28px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .strip-card{flex:0 0 250px}
  .footer-grid{grid-template-columns:1fr;gap:8px;padding-bottom:32px}
  .footer-col h3{margin-bottom:14px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
}
@media (max-width:520px){
  .container{padding-left:18px;padding-right:18px}
  .brand-logo{font-size:17px}
  .stat-grid{grid-template-columns:1fr;row-gap:22px}
  .stat-item{border-left:none!important;padding-left:0!important;border-top:1px solid rgba(244,242,237,.14);padding-top:18px}
  .stat-item:first-child{border-top:none;padding-top:0}
  .article-body p{font-size:16px}
  .accordion-button{font-size:16px;padding-right:38px}
  .btn{width:100%}
  .hero-actions{gap:10px}
}