/* roulang page: index */
:root{
  --c-primary:#16564B;
  --c-primary-dark:#0E3A33;
  --c-primary-light:#2E8B7A;
  --c-accent:#E39A2B;
  --c-bg:#F7F4ED;
  --c-surface:#FFFFFF;
  --c-band:#EFEAE0;
  --c-ink:#0F2A26;
  --c-ink-text:#E8E4D9;
  --c-ink-sub:#A8B5AE;
  --c-text:#1B2421;
  --c-text-2:#55605B;
  --c-text-3:#8A9490;
  --c-border:#DCD6C9;
  --c-success:#2E7D5B;
  --c-warn:#C4703A;
  --c-error:#B3453B;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,42,38,.06);
  --sh-2:0 8px 24px rgba(15,42,38,.08);
  --sh-3:0 12px 32px rgba(15,42,38,.12);
  --maxw:1200px;
  --tr:200ms ease-out;
}
*{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",system-ui,sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color var(--tr),background var(--tr),border-color var(--tr)}
a:hover{color:var(--c-primary-dark)}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.3px;line-height:1.3}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(227,154,43,.45);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-ink);color:var(--c-ink-text);font-size:13px;height:38px;overflow:hidden;transition:height var(--tr)}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;height:38px;gap:16px}
.topbar__left{display:flex;align-items:center;gap:14px;min-width:0}
.topbar__domain{font-weight:600;letter-spacing:.4px;color:#fff;font-variant-numeric:tabular-nums}
.topbar__tip{color:var(--c-ink-sub);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar__right{display:flex;align-items:center;gap:20px;flex-shrink:0}
.topbar__link{display:inline-flex;align-items:center;gap:7px;color:var(--c-ink-text);font-size:13px}
.topbar__link:hover{color:var(--c-accent)}
.topbar__link .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:1000}
.site-header.is-scrolled .topbar{height:0}
.mainnav{background:#fff;border-bottom:1px solid var(--c-border);transition:box-shadow var(--tr)}
.site-header.is-scrolled .mainnav{box-shadow:var(--sh-1)}
.mainnav__inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:12px;color:var(--c-text);flex-shrink:0}
.brand:hover{color:var(--c-text)}
.brand__mark{
  width:40px;height:40px;border-radius:10px;background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;letter-spacing:.6px;
}
.brand__text{font-size:17px;font-weight:700;letter-spacing:-0.3px}
.menu{display:flex;align-items:center;gap:6px;margin-left:8px}
.menu__link{position:relative;display:inline-block;padding:8px 14px;color:var(--c-text-2);font-size:15px;font-weight:500;border-radius:8px}
.menu__link:hover{color:var(--c-primary);background:#F0F4F1}
.menu__link.is-active{color:var(--c-primary);font-weight:600}
.menu__link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:-2px;height:3px;border-radius:2px;background:var(--c-primary)}
.mainnav__actions{margin-left:auto;display:flex;align-items:center;gap:18px}
.burger{display:none;width:44px;height:44px;border:1px solid var(--c-border);background:#fff;border-radius:10px;
  flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;margin-left:auto}
.burger span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;transition:transform var(--tr),opacity var(--tr)}

/* ---------- 按钮与链接 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;border:1.5px solid transparent;cursor:pointer;
  transition:transform var(--tr),background var(--tr),color var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.btn-brand{background:var(--c-accent);color:#20211C}
.btn-brand:hover{background:#D28C1E;color:#20211C;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-brand:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:#EAF1EE;color:var(--c-primary-dark)}
.btn-sm{height:40px;padding:0 20px;font-size:14px;border-radius:9px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:15px;position:relative}
.link-arrow .arw{transition:transform var(--tr);display:inline-block}
.link-arrow:hover .arw{transform:translateX(4px)}
.link-arrow::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:1px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform var(--tr)}
.link-arrow:hover::after{transform:scaleX(1)}

/* ---------- Hero ---------- */
.hero{padding:72px 0 80px;background:var(--c-bg)}
.hero__grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center}
.hero__copy .eyebrow{
  display:inline-block;padding:5px 14px;border-radius:var(--r-pill);
  background:#E4EFEA;color:var(--c-primary-dark);font-size:13px;font-weight:600;letter-spacing:.2px;margin-bottom:20px;
}
.hero h1{font-size:40px;line-height:1.25;margin-bottom:18px}
.hero__sub{font-size:18px;color:var(--c-text-2);max-width:34em;margin-bottom:28px}
.hero__cta{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin-bottom:26px}
.hero__points{display:flex;flex-wrap:wrap;gap:10px 22px}
.hero__points li{position:relative;padding-left:20px;font-size:14px;color:var(--c-text-2)}
.hero__points li::before{
  content:"";position:absolute;left:0;top:9px;width:10px;height:10px;
  background:var(--c-primary);border-radius:2px;
}
.hero__media{position:relative;border-radius:12px;overflow:hidden;box-shadow:var(--sh-2)}
.hero__media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero__media::after{content:"";position:absolute;inset:0;background:rgba(22,86,75,.08);pointer-events:none}
.hero__bar{position:absolute;right:0;bottom:0;width:120px;height:4px;background:var(--c-accent);transform:skewX(-24deg);z-index:2}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0}
.band{background:var(--c-band)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.sec-head h2{font-size:30px;margin-bottom:10px}
.sec-head p{font-size:16px;color:var(--c-text-2);max-width:60ch}

/* ---------- 入口服务区 ---------- */
.split{display:grid;grid-template-columns:1fr;gap:40px}
.split__lead h2{font-size:30px;margin-bottom:16px}
.split__lead p{color:var(--c-text-2);margin-bottom:24px;max-width:30em}
.modgrid{display:grid;grid-template-columns:1fr;gap:16px}
.mod{
  background:var(--c-surface);border-radius:var(--r-card);padding:24px;
  border:1px solid transparent;transition:box-shadow var(--tr),transform var(--tr),border-color var(--tr);
}
.mod:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:rgba(22,86,75,.18)}
.mod__num{display:block;font-size:26px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1;margin-bottom:14px}
.mod h3{font-size:18px;margin-bottom:8px}
.mod p{font-size:15px;color:var(--c-text-2)}

/* ---------- 数据条 ---------- */
.stats{background:var(--c-ink);color:var(--c-ink-text);padding:56px 0}
.stats__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px 0}
.stat{padding:0 18px;border-left:1px solid rgba(255,255,255,.15)}
.stat:nth-child(odd){border-left:none;padding-left:0}
.stat__num{font-size:40px;font-weight:700;color:#fff;line-height:1.15;font-variant-numeric:tabular-nums}
.stat__label{font-size:14px;color:var(--c-ink-sub);margin-top:6px}

/* ---------- 场景横滑 ---------- */
.scroller{display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:14px;-webkit-overflow-scrolling:touch}
.scroller::-webkit-scrollbar{height:6px}
.scroller::-webkit-scrollbar-thumb{background:var(--c-border);border-radius:99px}
.scard{
  flex:0 0 320px;scroll-snap-align:start;background:var(--c-surface);
  border:1px solid var(--c-border);border-radius:var(--r-card);overflow:hidden;
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.scard:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:rgba(22,86,75,.3)}
.scard img{width:100%;aspect-ratio:16/10;object-fit:cover}
.scard__body{padding:20px}
.scard__name{font-size:17px;margin-bottom:8px}
.scard__desc{font-size:14px;color:var(--c-text-2);margin-bottom:14px}
.scard__link{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.scard__link .arw{transition:transform var(--tr)}
.scard:hover .scard__link .arw{transform:translateX(4px)}

/* ---------- 流程四步 ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:32px}
.step{position:relative;padding-left:0}
.step__num{
  width:40px;height:40px;border-radius:50%;border:1.5px solid var(--c-primary);
  color:var(--c-primary);display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;font-variant-numeric:tabular-nums;margin-bottom:16px;background:var(--c-band);
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--c-text-2)}

/* ---------- 最新信息 ---------- */
.pgrid{display:grid;grid-template-columns:1fr;gap:24px}
.pcard{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);overflow:hidden;
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr)}
.pcard:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:rgba(22,86,75,.28)}
.pcard__link{display:block;color:var(--c-text)}
.pcard__link:hover{color:var(--c-text)}
.pcard__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--c-band)}
.pcard__media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms ease-out}
.pcard:hover .pcard__media img{transform:scale(1.03)}
.pcard__badge{
  position:absolute;left:12px;top:12px;padding:3px 11px;border-radius:var(--r-pill);
  background:#FBEBD1;color:#7A4A0C;font-size:12px;font-weight:600;line-height:1.6;
}
.pcard__body{padding:20px}
.pcard__title{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pcard__desc{
  font-size:14px;color:var(--c-text-2);margin-top:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pcard__meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;font-size:13px;color:var(--c-text-3)}
.empty{background:var(--c-band);border:1.5px dashed var(--c-border);border-radius:var(--r-card);padding:48px 24px;text-align:center}
.empty p{font-size:15px;color:var(--c-text-2);margin-bottom:18px}

/* ---------- FAQ ---------- */
.faq{max-width:900px}
.faq .accordion-item{border:0;background:transparent;margin-bottom:12px;border-radius:var(--r-card)!important;overflow:hidden;box-shadow:var(--sh-1)}
.faq .accordion-button{
  background:var(--c-surface);color:var(--c-text);font-weight:600;font-size:17px;
  padding:20px 24px;border-radius:var(--r-card);box-shadow:none!important;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq .accordion-button:not(.collapsed){background:var(--c-surface);color:var(--c-primary-dark)}
.faq .accordion-button:focus{box-shadow:none!important;outline:3px solid rgba(227,154,43,.45);outline-offset:-3px}
.faq .accordion-button::after{
  content:"+";background-image:none!important;width:28px;height:28px;flex:0 0 28px;
  display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:600;
  color:var(--c-primary);border:1px solid var(--c-border);border-radius:50%;
  transition:transform var(--tr),background var(--tr),color var(--tr),border-color var(--tr);
}
.faq .accordion-button:not(.collapsed)::after{
  content:"+";transform:rotate(45deg);background:var(--c-primary);color:#fff;border-color:var(--c-primary);
}
.faq .accordion-body{padding:0 24px 22px;font-size:15px;color:var(--c-text-2);line-height:1.8}

/* ---------- 联系与表单 ---------- */
.contact{display:grid;grid-template-columns:1fr;gap:40px;align-items:start}
.contact__list{display:grid;gap:20px;margin-top:24px}
.citem{display:flex;gap:14px;align-items:flex-start}
.citem__key{
  flex:0 0 auto;min-width:76px;font-size:13px;font-weight:600;color:var(--c-primary);
  background:#E4EFEA;border-radius:8px;padding:3px 10px;text-align:center;margin-top:3px;
}
.citem__val{font-size:15px;color:var(--c-text-2)}
.cform{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh-2)}
.cform h3{font-size:20px;margin-bottom:8px}
.cform__hint{font-size:14px;color:var(--c-text-3);margin-bottom:24px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.field .req{color:var(--c-accent);margin-left:2px}
.form-control,.form-select{
  width:100%;min-height:48px;padding:10px 14px;font-size:15px;
  border:1px solid var(--c-border);border-radius:var(--r-btn);background:#fff;color:var(--c-text);
  box-shadow:none;transition:border-color var(--tr),box-shadow var(--tr);
}
.form-control::placeholder{color:#A9B1AC}
.form-control:focus,.form-select:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(22,86,75,.15);outline:none}
textarea.form-control{min-height:120px;resize:vertical}
.cform .btn{width:100%;margin-top:6px}
.form-tip{display:none;margin-top:14px;padding:12px 14px;border-radius:10px;background:#E4EFEA;color:var(--c-primary-dark);font-size:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:var(--c-ink-sub);padding:72px 0 0;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1fr;gap:36px}
.footer__brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer__brand .brand__mark{background:var(--c-primary-light)}
.footer__brand span{color:#fff;font-size:17px;font-weight:700}
.footer__desc{font-size:14px;line-height:1.9;max-width:34em;color:var(--c-ink-sub)}
.footer__title{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px}
.footer__link{display:block;font-size:14px;color:var(--c-ink-sub);padding:5px 0}
.footer__link:hover{color:var(--c-accent)}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding:20px 0 24px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--c-ink-sub);
}
.footer__bottom a{color:var(--c-ink-sub)}
.footer__bottom a:hover{color:var(--c-accent)}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;
  background:var(--c-primary);color:#fff;border:0;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);cursor:pointer;opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--tr),transform var(--tr),background var(--tr),visibility var(--tr);z-index:900;font-size:18px;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--c-primary-dark)}

/* ---------- 移动抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:1200;pointer-events:none}
.drawer__mask{position:absolute;inset:0;background:rgba(15,42,38,.5);opacity:0;transition:opacity var(--tr)}
.drawer__panel{
  position:absolute;top:0;right:0;width:min(320px,86vw);height:100%;background:var(--c-ink);
  color:var(--c-ink-text);padding:24px;transform:translateX(100%);transition:transform var(--tr);
  display:flex;flex-direction:column;gap:24px;overflow-y:auto;
}
.drawer.open{pointer-events:auto}
.drawer.open .drawer__mask{opacity:1}
.drawer.open .drawer__panel{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;gap:12px;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.12)}
.drawer__head .brand__mark{background:var(--c-primary-light)}
.drawer__title{color:#fff;font-size:16px;font-weight:700}
.drawer__close{margin-left:auto;width:36px;height:36px;border-radius:9px;border:1px solid rgba(255,255,255,.2);
  background:transparent;color:#fff;font-size:18px;line-height:1;cursor:pointer}
.drawer__menu{display:grid;gap:4px}
.drawer__menu a{display:block;padding:13px 12px;border-radius:10px;color:#E8E4D9;font-size:15px;border-bottom:1px solid rgba(255,255,255,.12)}
.drawer__menu a:hover,.drawer__menu a.is-active{background:rgba(255,255,255,.08);color:#fff}
.drawer__cta{margin-top:auto;width:100%}

/* ---------- 响应式 ---------- */
@media (min-width:576px){
  .modgrid{grid-template-columns:repeat(2,1fr)}
  .modgrid .mod:nth-child(3){grid-column:1 / -1}
  .pgrid{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:768px){
  .hero{padding:88px 0 96px}
  .stats__grid{grid-template-columns:repeat(4,1fr);gap:0}
  .stat{padding:0 24px}
  .stat:nth-child(odd){border-left:1px solid rgba(255,255,255,.15);padding-left:24px}
  .stat:first-child{border-left:none;padding-left:0}
  .section{padding:80px 0}
  .split{grid-template-columns:1fr 1.35fr;gap:48px;align-items:start}
  .cform{padding:36px}
}
@media (min-width:992px){
  .hero__grid{grid-template-columns:1fr 1fr;gap:56px}
  .steps{grid-template-columns:repeat(4,1fr);gap:24px}
  .step:not(:last-child)::after{
    content:"";position:absolute;top:20px;left:52px;right:-24px;border-top:1px dashed var(--c-border);
  }
  .pgrid{grid-template-columns:repeat(4,1fr)}
  .contact{grid-template-columns:5fr 7fr;gap:56px}
  .footer__grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
  .menu,.mainnav__actions{display:flex}
}
@media (min-width:1200px){
  .hero__grid{grid-template-columns:5fr 7fr}
  .section{padding:96px 0}
}
@media (max-width:991px){
  .menu,.mainnav__actions{display:none}
  .burger{display:flex}
  .step{padding-left:22px;border-left:2px solid var(--c-primary)}
  .step__num{margin-left:-44px;background:var(--c-bg)}
}
@media (max-width:767px){
  .topbar__tip{display:none}
  .topbar__right .topbar__link:not(:first-child){display:none}
  .hero h1{font-size:32px}
  .hero__sub{font-size:16px}
  .sec-head h2,.split__lead h2{font-size:26px}
  .hero{padding:52px 0 64px}
  .section{padding:64px 0}
  .stats__grid{grid-template-columns:repeat(2,1fr);gap:28px 0}
}
@media (max-width:575px){
  .wrap{padding:0 16px}
  .hero h1{font-size:28px;line-height:1.3}
  .sec-head h2,.split__lead h2{font-size:24px}
  .section{padding:48px 0}
  .hero{padding:44px 0 52px}
  .scard{flex:0 0 86%}
  .cform{padding:22px}
  .btn{width:100%;padding:0 20px}
  .hero__cta .btn{width:100%}
  .hero__cta{gap:14px}
  .faq .accordion-button{font-size:16px;padding:16px 18px}
  .faq .accordion-body{padding:0 18px 18px}
}

/* roulang page: article */
:root{
  --c-primary:#16564B;
  --c-primary-dark:#0E3A33;
  --c-primary-light:#2E8B7A;
  --c-primary-soft:#EAF1EE;
  --c-accent:#E39A2B;
  --c-accent-dark:#C9831C;
  --c-accent-soft:#FBF0DC;
  --c-bg:#F7F4ED;
  --c-surface:#FFFFFF;
  --c-layer:#EFEAE0;
  --c-ink:#0F2A26;
  --c-ink-text:#E8E4D9;
  --c-ink-sub:#A8B5AE;
  --c-text:#1B2421;
  --c-text-2:#55605B;
  --c-text-3:#8A9490;
  --c-border:#DCD6C9;
  --c-success:#2E7D5B;
  --c-warn:#C4703A;
  --c-error:#B3453B;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(15,42,38,.06);
  --sh-2:0 8px 24px rgba(15,42,38,.08);
  --sh-3:0 12px 32px rgba(15,42,38,.12);
  --ease:200ms ease-out;
  --wrap:1200px;
}
*,*::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",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--c-primary-dark);}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.3px;line-height:1.3;color:var(--c-text);}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(227,154,43,.45);outline-offset:2px;}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-ink);color:var(--c-ink-sub);font-size:13px;height:38px;}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;height:38px;gap:16px;}
.topbar__left{display:flex;align-items:center;gap:14px;min-width:0;}
.topbar__domain{color:var(--c-ink-text);letter-spacing:.4px;font-weight:600;white-space:nowrap;}
.topbar__tip{color:var(--c-ink-sub);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar__right{display:flex;align-items:center;gap:20px;}
.topbar__link{color:var(--c-ink-sub);display:inline-flex;align-items:center;gap:6px;white-space:nowrap;}
.topbar__link:hover{color:var(--c-accent);}
.topbar__link .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block;}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;transition:box-shadow var(--ease);}
.site-header.is-stuck{box-shadow:var(--sh-2);}
.mainnav{background:var(--c-surface);border-bottom:1px solid var(--c-border);}
.mainnav__inner{display:flex;align-items:center;gap:32px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-text);flex:0 0 auto;}
.brand:hover{color:var(--c-text);}
.brand__mark{
  width:38px;height:38px;border-radius:10px;background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;letter-spacing:.5px;flex:0 0 auto;
}
.brand__text{font-size:17px;font-weight:700;letter-spacing:-0.2px;white-space:nowrap;}
.menu{display:flex;align-items:center;gap:6px;margin-left:8px;}
.menu__link{
  display:inline-block;padding:0 14px;height:72px;line-height:72px;
  font-size:15px;color:var(--c-text-2);position:relative;
}
.menu__link:hover{color:var(--c-primary);}
.menu__link.is-active{color:var(--c-primary);font-weight:600;}
.menu__link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;
  background:var(--c-primary);border-radius:3px 3px 0 0;
}
.mainnav__actions{margin-left:auto;display:flex;align-items:center;gap:20px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;border-radius:var(--r-btn);font-weight:600;cursor:pointer;
  text-decoration:none;transition:transform var(--ease),background var(--ease),box-shadow var(--ease),color var(--ease);
  line-height:1;
}
.btn-brand{background:var(--c-accent);color:#20211C;height:44px;padding:0 24px;font-size:15px;}
.btn-brand:hover{background:var(--c-accent-dark);color:#20211C;transform:translateY(-1px);}
.btn-brand:active{transform:translateY(0);}
.btn-brand.btn-sm{height:40px;padding:0 20px;font-size:15px;}
.btn-outline{
  background:transparent;color:var(--c-primary);border:1.5px solid var(--c-primary);
  height:44px;padding:0 24px;font-size:15px;
}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-1px);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;color:var(--c-primary);}
.link-arrow .arw{transition:transform var(--ease);}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px;color:var(--c-primary-dark);}
.link-arrow:hover .arw{transform:translateX(4px);}
.burger{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:10px;
  background:var(--c-primary-soft);border:0;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
}
.burger span{display:block;width:20px;height:2px;background:var(--c-primary);border-radius:2px;}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:1080;background:rgba(15,42,38,.55);
  opacity:0;pointer-events:none;transition:opacity var(--ease);
}
.drawer.is-open{opacity:1;pointer-events:auto;}
.drawer__panel{
  position:absolute;top:0;right:0;bottom:0;width:min(320px,84vw);
  background:var(--c-ink);color:var(--c-ink-text);padding:24px;
  transform:translateX(100%);transition:transform var(--ease);
  display:flex;flex-direction:column;gap:24px;
}
.drawer.is-open .drawer__panel{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;}
.drawer__head .brand__mark{background:var(--c-accent);color:#20211C;}
.drawer__close{
  width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.08);
  color:var(--c-ink-text);border:0;font-size:22px;line-height:1;cursor:pointer;
}
.drawer__nav{display:flex;flex-direction:column;}
.drawer__nav a{
  color:var(--c-ink-text);font-size:16px;padding:14px 4px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.drawer__nav a:hover{color:var(--c-accent);}
.drawer .btn-brand{width:100%;}

/* ---------- 面包屑 ---------- */
.crumbs{background:var(--c-layer);border-bottom:1px solid var(--c-border);}
.crumbs__inner{
  display:flex;align-items:center;gap:8px;flex-wrap:nowrap;overflow:hidden;
  font-size:13px;color:var(--c-text-3);height:48px;
}
.crumbs__inner a{color:var(--c-text-2);white-space:nowrap;}
.crumbs__inner a:hover{color:var(--c-primary);}
.crumbs .sep{color:var(--c-text-3);}
.crumbs__cur{
  color:var(--c-primary);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:46vw;
}
.crumbs__cat{color:var(--c-text-2);white-space:nowrap;}

/* ---------- 文章 ---------- */
.article{padding:56px 0 72px;}
.article__inner{max-width:760px;margin:0 auto;}
.article__head{padding-bottom:28px;border-bottom:1px solid var(--c-border);margin-bottom:36px;}
.badge-cat{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  background:var(--c-accent-soft);color:#6B4708;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.3px;
}
.article__title{font-size:40px;line-height:1.25;margin:18px 0 18px;letter-spacing:-0.5px;}
.article__meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13px;color:var(--c-text-3);}
.article__meta span{display:inline-flex;align-items:center;gap:6px;}
.article__meta .sq{width:5px;height:5px;background:var(--c-primary-light);border-radius:1px;display:inline-block;}
.article__lead{
  margin:0 0 28px;padding:18px 22px;background:var(--c-surface);border:1px solid var(--c-border);
  border-left:4px solid var(--c-accent);border-radius:0 var(--r-card) var(--r-card) 0;
  font-size:15px;color:var(--c-text-2);line-height:1.8;
}

/* 正文排版 */
.prose{font-size:17px;line-height:1.9;color:var(--c-text);word-break:break-word;}
.prose p{margin:0 0 18px;max-width:68ch;}
.prose h2{
  font-size:26px;line-height:1.4;margin:40px 0 16px;padding-left:14px;position:relative;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;
  background:var(--c-primary);border-radius:2px;
}
.prose h3{font-size:20px;line-height:1.45;margin:28px 0 12px;}
.prose h4{font-size:17px;margin:22px 0 10px;color:var(--c-text-2);}
.prose ul,.prose ol{padding-left:24px;margin:0 0 18px;}
.prose ul{list-style:none;padding-left:4px;}
.prose ul>li{position:relative;padding-left:20px;margin-bottom:8px;}
.prose ul>li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;
  background:var(--c-primary);border-radius:2px;
}
.prose ol{list-style:decimal;}
.prose ol>li{margin-bottom:8px;padding-left:4px;}
.prose blockquote{
  margin:24px 0;padding:16px 20px;background:var(--c-layer);
  border-left:3px solid var(--c-primary);border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--c-text-2);font-size:16px;
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{max-width:100%;height:auto;border-radius:var(--r-img);margin:24px auto 10px;}
.prose figure{margin:24px 0;}
.prose figcaption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:8px;}
.prose table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.prose th,.prose td{border:1px solid var(--c-border);padding:10px 14px;text-align:left;vertical-align:top;}
.prose th{background:var(--c-layer);font-weight:600;color:var(--c-text);}
.prose tbody tr{transition:background var(--ease);}
.prose tbody tr:hover{background:#FBF9F3;}
.prose a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.prose a:hover{color:var(--c-primary-dark);}
.prose hr{border:0;border-top:1px solid var(--c-border);margin:32px 0;}
.prose code{background:var(--c-layer);padding:2px 6px;border-radius:6px;font-size:14px;}

/* 空态 */
.empty-state{
  background:var(--c-layer);border:1.5px dashed var(--c-border);border-radius:var(--r-card);
  padding:48px 24px;text-align:center;
}
.empty-state__title{font-size:18px;font-weight:700;margin:0 0 8px;}
.empty-state__text{font-size:15px;color:var(--c-text-2);margin:0 0 20px;}

/* 文末 */
.article__foot{margin-top:48px;padding-top:32px;border-top:1px solid var(--c-border);}
.foot__actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-bottom:40px;}
.related__title{font-size:18px;font-weight:700;margin:0 0 16px;display:flex;align-items:center;gap:10px;}
.related__title::before{content:"";width:4px;height:18px;background:var(--c-accent);border-radius:2px;display:inline-block;}
.related__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;}
.related__card{
  display:block;background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-card);padding:20px;height:100%;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.related__card:hover{
  transform:translateY(-3px);box-shadow:var(--sh-2);
  border-color:rgba(22,86,75,.3);
}
.related__card h4{font-size:16px;margin:0 0 8px;color:var(--c-text);}
.related__card p{font-size:14px;color:var(--c-text-2);margin:0 0 12px;line-height:1.7;}
.related__card .more{font-size:13px;color:var(--c-primary);font-weight:600;}
.related__card .more span{transition:transform var(--ease);display:inline-block;}
.related__card:hover .more span{transform:translateX(4px);}

/* ---------- 深色求助条 ---------- */
.help-band{background:var(--c-ink);padding:56px 0;margin-top:8px;}
.help-band__inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.help-band h2{color:var(--c-ink-text);font-size:26px;margin:0 0 8px;}
.help-band p{color:var(--c-ink-sub);font-size:15px;margin:0;max-width:56ch;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:var(--c-ink-sub);padding:64px 0 0;}
.footer__grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;
  padding-bottom:40px;
}
.footer__brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:14px;}
.footer__brand .brand__mark{width:34px;height:34px;border-radius:9px;background:var(--c-accent);color:#20211C;font-size:12px;}
.footer__desc{font-size:14px;line-height:1.8;color:var(--c-ink-sub);margin:0;max-width:34ch;}
.footer__title{color:#fff;font-size:14px;font-weight:700;margin-bottom:14px;letter-spacing:.3px;}
.footer__link{display:block;font-size:14px;color:var(--c-ink-sub);margin-bottom:10px;line-height:1.7;}
.footer__link:hover{color:var(--c-accent);}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.15);padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--c-ink-sub);
}
.footer__bottom a{color:var(--c-ink-text);}
.footer__bottom a:hover{color:var(--c-accent);}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:20px;bottom:24px;width:44px;height:44px;border-radius:12px;
  background:var(--c-primary);color:#fff;border:0;cursor:pointer;font-size:16px;
  display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity var(--ease),transform var(--ease),background var(--ease);
  box-shadow:var(--sh-2);z-index:1040;
}
.to-top.is-show{opacity:1;pointer-events:auto;transform:translateY(0);}
.to-top:hover{background:var(--c-primary-dark);}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .article__title{font-size:34px;}
}
@media (max-width:991.98px){
  .menu,.mainnav__actions{display:none;}
  .burger{display:inline-flex;}
  .mainnav__inner{height:64px;gap:16px;}
  .article{padding:40px 0 56px;}
  .article__title{font-size:30px;}
  .related__grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px;}
  .help-band{padding:48px 0;}
}
@media (max-width:767.98px){
  .topbar__tip{display:none;}
  .topbar__right .topbar__link:last-child{display:none;}
  .brand__text{font-size:15px;}
  .article__inner{max-width:100%;}
  .article__head{margin-bottom:28px;padding-bottom:22px;}
  .prose{font-size:16px;}
  .prose h2{font-size:22px;margin-top:32px;}
  .prose h3{font-size:18px;}
  .related__grid{grid-template-columns:1fr;}
  .foot__actions{flex-direction:column;align-items:stretch;}
  .foot__actions .btn{width:100%;}
}
@media (max-width:575.98px){
  .wrap{padding:0 16px;}
  .article__title{font-size:26px;}
  .article__lead{padding:14px 16px;font-size:14px;}
  .help-band h2{font-size:21px;}
  .footer__bottom{flex-direction:column;align-items:flex-start;}
  .crumbs__cur{max-width:38vw;}
}

/* roulang page: category1 */
:root{
  --c-primary:#16564B;
  --c-primary-dark:#0E3A33;
  --c-primary-light:#2E8B7A;
  --c-primary-soft:#EAF1EE;
  --c-accent:#E39A2B;
  --c-accent-soft:#FBF0DC;
  --c-bg:#F7F4ED;
  --c-surface:#FFFFFF;
  --c-layer:#EFEAE0;
  --c-ink:#0F2A26;
  --c-ink-text:#E8E4D9;
  --c-ink-sub:#A8B5AE;
  --c-text:#1B2421;
  --c-sub:#55605B;
  --c-muted:#8A9490;
  --c-border:#DCD6C9;
  --c-success:#2E7D5B;
  --c-warn:#C4703A;
  --c-error:#B3453B;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(15,42,38,.06);
  --sh-2:0 8px 24px rgba(15,42,38,.08);
  --sh-hover:0 12px 32px rgba(15,42,38,.12);
  --ease:200ms ease-out;
  --nav-h:66px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  letter-spacing:0;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--c-primary-dark)}
p{margin:0 0 16px;max-width:68ch}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.3px;color:var(--c-text);line-height:1.3}
h1{font-size:40px;line-height:1.25}
h2{font-size:30px;line-height:1.3}
h3{font-size:20px;line-height:1.45}
h4{font-size:17px;line-height:1.5}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(227,154,43,.45);outline-offset:2px;box-shadow:inset 0 0 0 2px var(--c-primary)}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--c-ink);color:var(--c-ink-sub);font-size:13px;overflow:hidden;max-height:38px;transition:max-height var(--ease)}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;height:38px;gap:16px}
.topbar__left{display:flex;align-items:center;gap:14px;min-width:0}
.topbar__domain{color:var(--c-ink-text);font-weight:600;letter-spacing:.4px;font-variant-numeric:tabular-nums}
.topbar__tip{color:var(--c-ink-sub);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar__right{display:flex;align-items:center;gap:20px;flex-shrink:0}
.topbar__link{color:var(--c-ink-text);display:inline-flex;align-items:center;gap:7px;font-size:13px}
.topbar__link:hover{color:var(--c-accent)}
.topbar__link .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-surface)}
.mainnav{background:var(--c-surface);border-bottom:1px solid var(--c-border);transition:box-shadow var(--ease)}
.site-header.is-stuck .mainnav{box-shadow:var(--sh-1)}
.site-header.is-stuck .topbar{max-height:0}
.mainnav__inner{display:flex;align-items:center;gap:28px;height:var(--nav-h)}
.brand{display:inline-flex;align-items:center;gap:11px;flex-shrink:0;color:var(--c-text)}
.brand:hover{color:var(--c-text)}
.brand__mark{
  width:40px;height:40px;border-radius:11px;background:var(--c-primary);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:14px;letter-spacing:.5px;flex-shrink:0;
}
.brand__text{font-size:17px;font-weight:700;letter-spacing:-0.2px;white-space:nowrap}
.menu{display:flex;align-items:center;gap:6px;margin-left:8px;flex:1}
.menu__link{
  position:relative;display:inline-block;padding:10px 14px;font-size:15px;color:var(--c-sub);
  border-radius:8px;font-weight:500;transition:color var(--ease),background var(--ease);
}
.menu__link:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.menu__link.is-active{color:var(--c-primary);font-weight:600}
.menu__link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  background:var(--c-primary);border-radius:2px;
}
.mainnav__actions{display:flex;align-items:center;gap:18px;flex-shrink:0}
.burger{
  display:none;width:42px;height:42px;border:1px solid var(--c-border);border-radius:10px;
  background:var(--c-surface);padding:0;cursor:pointer;place-items:center;flex-shrink:0;
}
.burger span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;margin:2.5px auto;transition:transform var(--ease),opacity var(--ease)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* 抽屉 */
.drawer{position:fixed;inset:0;z-index:90;visibility:hidden;pointer-events:none}
.drawer__mask{position:absolute;inset:0;background:rgba(15,42,38,.55);opacity:0;transition:opacity var(--ease)}
.drawer__panel{
  position:absolute;top:0;right:0;height:100%;width:300px;max-width:86vw;background:var(--c-ink);
  color:#fff;padding:22px 22px 30px;transform:translateX(100%);transition:transform var(--ease);
  overflow-y:auto;
}
.drawer.is-open{visibility:visible;pointer-events:auto}
.drawer.is-open .drawer__mask{opacity:1}
.drawer.is-open .drawer__panel{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.12);margin-bottom:8px}
.drawer__head strong{font-size:15px;letter-spacing:.5px}
.drawer__close{background:transparent;border:1px solid rgba(255,255,255,.25);color:#fff;width:34px;height:34px;border-radius:8px;cursor:pointer;font-size:16px;line-height:1}
.drawer__link{display:block;padding:14px 2px;border-bottom:1px solid rgba(255,255,255,.12);color:#E8E4D9;font-size:15px}
.drawer__link:hover{color:var(--c-accent)}
.drawer__link.is-active{color:var(--c-accent);font-weight:600}
.drawer__btn{margin-top:22px;display:block;text-align:center}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);
  border:1.5px solid transparent;font-weight:600;font-size:15px;height:48px;padding:0 28px;
  cursor:pointer;transition:transform var(--ease),background var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease);
  white-space:nowrap;text-decoration:none;
}
.btn-brand,.btn-brand:focus{background:var(--c-accent);color:#20211C;border-color:var(--c-accent);box-shadow:var(--sh-1)}
.btn-brand:hover{background:#CF8A1F;border-color:#CF8A1F;color:#20211C;transform:translateY(-1px)}
.btn-brand:active{transform:translateY(0);background:#BE7C18}
.btn-sm{height:40px;padding:0 20px;font-size:14px;border-radius:9px}
.btn-outline-brand{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline-brand:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:var(--c-primary-dark)}
.btn-ghost-ink{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn-ghost-ink:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.7)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary)}
.link-arrow .arw{transition:transform var(--ease)}
.link-arrow:hover .arw{transform:translateX(4px)}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px}

/* ============ 页头 ============ */
.page-hero{position:relative;color:#fff;background:var(--c-primary-dark);overflow:hidden}
.page-hero__bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;transform:scale(1.02)}
.page-hero__bg::after{content:"";position:absolute;inset:0;background:rgba(14,58,51,.78)}
.page-hero__inner{position:relative;z-index:1;min-height:300px;display:flex;flex-direction:column;justify-content:center;padding:56px 0 48px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;margin-bottom:18px;color:rgba(255,255,255,.72);flex-wrap:wrap}
.crumbs a{color:rgba(255,255,255,.86)}
.crumbs a:hover{color:var(--c-accent)}
.crumbs .sep{opacity:.5}
.crumbs .cur{color:var(--c-accent)}
.page-hero h1{color:#fff;max-width:20ch;margin-bottom:14px}
.page-hero h1 .hl{color:var(--c-accent)}
.page-hero__lead{font-size:17px;line-height:1.75;color:rgba(255,255,255,.86);max-width:52ch;margin:0}
.page-hero__chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);font-size:13px;color:#F1EEE4}
.chip i{color:var(--c-accent);font-size:12px}

/* ============ 板块通用 ============ */
.block{padding:96px 0}
.block--tight{padding:72px 0}
.block--layer{background:var(--c-layer)}
.block__head{max-width:760px;margin-bottom:36px}
.block__head h2{margin-bottom:12px}
.block__head p{color:var(--c-sub);font-size:16px;margin:0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:1.4px;
  text-transform:uppercase;color:var(--c-primary);background:var(--c-primary-soft);border-radius:var(--r-pill);
  padding:5px 12px;margin-bottom:14px}

/* ============ 两栏主体 ============ */
.layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:36px;align-items:start}
.panel{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh-1)}
.panel__title{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.panel__title h2{font-size:26px}
.panel__sub{color:var(--c-sub);font-size:15px;margin:0 0 28px}

/* 时间轴 */
.steps{position:relative}
.step{position:relative;display:grid;grid-template-columns:60px minmax(0,1fr);gap:20px;padding-bottom:34px}
.step:last-child{padding-bottom:0}
.step:not(:last-child)::before{
  content:"";position:absolute;left:29px;top:60px;bottom:2px;width:0;
  border-left:1px dashed var(--c-border);
}
.step__num{
  width:60px;height:60px;border-radius:50%;border:1.5px solid var(--c-primary);
  background:var(--c-surface);color:var(--c-primary);display:grid;place-items:center;
  font-size:20px;font-weight:700;font-variant-numeric:tabular-nums;position:relative;z-index:1;
}
.step__body{padding-top:4px}
.step__body h3{margin-bottom:10px;font-size:19px}
.step__body p{color:var(--c-sub);font-size:15px;line-height:1.85;margin:0 0 14px}
.step__tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.tag{display:inline-block;padding:4px 11px;border-radius:var(--r-pill);background:var(--c-layer);
  color:var(--c-sub);font-size:12px;border:1px solid var(--c-border)}
.tag--accent{background:var(--c-accent-soft);color:#8A5A11;border-color:#F0DDB8}
.step__figure{margin:6px 0 0;max-width:520px}
.step__figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border:1px solid var(--c-border)}
.step__figure figcaption{font-size:12.5px;color:var(--c-muted);margin-top:8px;text-align:center}

/* 侧栏快卡 */
.side{position:sticky;top:96px}
.side__card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-2)}
.side__card h3{font-size:17px;margin-bottom:6px}
.side__card .side__note{font-size:13.5px;color:var(--c-muted);margin:0 0 18px}
.side__list{display:flex;flex-direction:column;gap:2px;margin-bottom:20px}
.side__item{display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 12px;border-radius:9px;color:var(--c-text);font-size:14.5px;
  transition:background var(--ease),color var(--ease)}
.side__item:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.side__item .ico{width:26px;height:26px;border-radius:7px;background:var(--c-primary-soft);color:var(--c-primary);
  display:grid;place-items:center;font-size:12px;flex-shrink:0}
.side__item .txt{flex:1;min-width:0}
.side__item .fa-arrow-right{font-size:11px;color:var(--c-muted)}
.side__item:hover .fa-arrow-right{color:var(--c-primary)}
.side__card .btn{width:100%}
.side__tip{margin-top:16px;padding:12px 14px;border-radius:10px;background:var(--c-accent-soft);
  border-left:4px solid var(--c-accent);font-size:13px;line-height:1.7;color:#7A5314}
.side__meta{margin-top:18px;padding-top:16px;border-top:1px solid var(--c-border);font-size:13px;color:var(--c-muted);display:grid;gap:6px}
.side__meta span strong{color:var(--c-text);font-weight:600}

/* ============ 提示对照 ============ */
.notice-list{display:grid;gap:14px}
.notice-row{
  display:grid;grid-template-columns:200px minmax(0,1fr);gap:24px;align-items:start;
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:22px 26px;transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.notice-row:hover{border-color:rgba(22,86,75,.3);box-shadow:var(--sh-hover);transform:translateY(-3px)}
.notice-row__key{display:flex;align-items:flex-start;gap:12px}
.notice-row__key .bar{width:4px;height:22px;background:var(--c-accent);transform:skewX(-14deg);border-radius:1px;flex-shrink:0;margin-top:3px}
.notice-row__key h3{font-size:16px;line-height:1.5}
.notice-row p{margin:0;color:var(--c-sub);font-size:14.5px;line-height:1.8;max-width:none}

/* ============ CTA 条 ============ */
.cta-band{background:var(--c-ink);color:var(--c-ink-text);position:relative;overflow:hidden}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:rgba(227,154,43,.1);
}
.cta-band__inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:10px}
.cta-band p{color:var(--c-ink-sub);margin:0;font-size:15px;max-width:52ch}

/* ============ FAQ ============ */
.faq{display:grid;gap:12px;max-width:900px}
.faq__item{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);overflow:hidden;transition:box-shadow var(--ease),border-color var(--ease)}
.faq__item:hover{border-color:rgba(22,86,75,.28);box-shadow:var(--sh-1)}
.faq__btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--c-text);line-height:1.5;
}
.faq__btn:focus{outline:none}
.faq__btn:focus-visible{outline:3px solid rgba(227,154,43,.45);outline-offset:-3px}
.faq__ico{
  width:28px;height:28px;flex-shrink:0;border-radius:50%;border:1.5px solid var(--c-primary);
  color:var(--c-primary);display:grid;place-items:center;font-size:15px;line-height:1;
  transition:transform var(--ease),background var(--ease),color var(--ease);
}
.faq__item.is-open .faq__ico{transform:rotate(45deg);background:var(--c-primary);color:#fff}
.faq__panel{max-height:0;overflow:hidden;transition:max-height 240ms ease-out}
.faq__panel-inner{padding:0 24px 22px;color:var(--c-sub);font-size:15px;line-height:1.85}
.faq__panel-inner p{margin:0;max-width:none}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:var(--c-ink-text);padding:72px 0 0;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:48px}
.footer__brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;font-size:16px;font-weight:700;color:#fff}
.footer__brand .brand__mark{background:var(--c-primary-light);color:#06231F}
.footer__desc{color:var(--c-ink-sub);font-size:14px;line-height:1.85;margin:0;max-width:34ch}
.footer__title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer__link{display:block;font-size:14px;color:var(--c-ink-sub);margin-bottom:10px;line-height:1.6}
.footer__link:hover{color:var(--c-accent)}
p.footer__link{margin-bottom:10px}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;display:flex;flex-wrap:wrap;
  gap:10px 24px;justify-content:space-between;font-size:12px;color:var(--c-ink-sub);
}
.footer__bottom a{color:var(--c-ink-sub)}
.footer__bottom a:hover{color:var(--c-accent)}

/* 返回顶部 */
.to-top{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:12px;border:0;
  background:var(--c-primary);color:#fff;display:grid;place-items:center;cursor:pointer;
  box-shadow:var(--sh-2);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity var(--ease),transform var(--ease),background var(--ease),visibility var(--ease);z-index:70;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--c-primary-dark)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  h1{font-size:36px}
  .layout{gap:28px}
}
@media (max-width:991px){
  .menu,.mainnav__actions{display:none}
  .burger{display:grid}
  .mainnav__inner{justify-content:space-between;height:62px}
  .topbar__tip{display:none}
  .block{padding:64px 0}
  .block--tight{padding:52px 0}
  .page-hero__inner{min-height:240px;padding:44px 0 40px}
  .layout{grid-template-columns:minmax(0,1fr)}
  .side{position:static}
  .panel{padding:26px}
  .cta-band__inner{flex-direction:column;align-items:flex-start;padding:44px 0;gap:22px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px}
  .notice-row{grid-template-columns:minmax(0,1fr);gap:10px}
}
@media (max-width:767px){
  h1{font-size:30px}
  h2{font-size:24px}
  .wrap{padding:0 16px}
  .block{padding:48px 0}
  .page-hero__inner{min-height:220px;padding:36px 0 32px}
  .page-hero__lead{font-size:15.5px}
  .step{grid-template-columns:46px minmax(0,1fr);gap:14px;padding-bottom:28px}
  .step__num{width:46px;height:46px;font-size:17px}
  .step:not(:last-child)::before{left:22px;top:48px}
  .panel{padding:20px}
  .brand__text{font-size:15px}
  .topbar__right{gap:12px}
  .cta-band h2{font-size:22px}
  .faq__btn{font-size:16px;padding:16px 18px}
  .faq__panel-inner{padding:0 18px 18px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:24px;padding-bottom:34px}
  .site-footer{padding-top:52px}
}
@media (max-width:575px){
  h1{font-size:28px}
  .topbar__link:last-child{display:none}
  .btn{height:46px;padding:0 22px;font-size:14.5px}
  .brand__mark{width:36px;height:36px;font-size:13px;border-radius:10px}
  .footer__grid{grid-template-columns:1fr}
  .footer__bottom{flex-direction:column}
  .page-hero__chips .chip{font-size:12px;padding:6px 12px}
}

/* roulang page: category2 */
:root{
  --c-primary:#16564B;
  --c-primary-dark:#0E3A33;
  --c-primary-light:#2E8B7A;
  --c-accent:#E39A2B;
  --c-accent-dark:#D18E22;
  --c-bg:#F7F4ED;
  --c-surface:#FFFFFF;
  --c-tint:#EFEAE0;
  --c-ink:#0F2A26;
  --c-ink-text:#E8E4D9;
  --c-ink-sub:#A8B5AE;
  --c-text:#1B2421;
  --c-muted:#55605B;
  --c-faint:#8A9490;
  --c-border:#DCD6C9;
  --c-ok:#2E7D5B;
  --c-warn:#C4703A;
  --c-err:#B3453B;
  --r-card:14px;
  --r-ctl:10px;
  --r-pill:999px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(15,42,38,.06);
  --sh-2:0 8px 24px rgba(15,42,38,.08);
  --sh-3:0 12px 32px rgba(15,42,38,.12);
  --tr:200ms ease-out;
}
*,*::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",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--tr)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.3px;line-height:1.3}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(227,154,43,.45);outline-offset:2px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- topbar ---------- */
.topbar{background:var(--c-ink);color:var(--c-ink-text);font-size:13px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;height:38px;gap:16px}
.topbar__left{display:flex;align-items:center;gap:14px;min-width:0}
.topbar__domain{font-weight:600;letter-spacing:.4px;color:#fff;font-variant-numeric:tabular-nums}
.topbar__tip{color:var(--c-ink-sub);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar__right{display:flex;align-items:center;gap:20px}
.topbar__link{color:var(--c-ink-sub);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.topbar__link:hover{color:var(--c-accent)}
.topbar__link .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block}

/* ---------- nav ---------- */
.mainnav{
  position:sticky;top:0;z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow var(--tr);
}
.mainnav.is-stuck{box-shadow:var(--sh-2)}
.mainnav__inner{display:flex;align-items:center;gap:24px;height:74px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand__mark{
  width:38px;height:38px;border-radius:10px;
  background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;letter-spacing:.6px;
  font-variant-numeric:tabular-nums;
}
.brand__text{font-size:17px;font-weight:700;color:var(--c-text);letter-spacing:-.3px}
.menu{display:flex;align-items:center;gap:2px;margin:0 auto}
.menu__link{
  position:relative;display:inline-flex;align-items:center;height:74px;
  padding:0 16px;font-size:15px;color:var(--c-muted);font-weight:500;
}
.menu__link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:16px;height:3px;
  background:var(--c-primary);border-radius:2px;transform:scaleX(0);
  transform-origin:left;transition:transform var(--tr);
}
.menu__link:hover{color:var(--c-primary)}
.menu__link.is-active{color:var(--c-primary);font-weight:700}
.menu__link.is-active::after{transform:scaleX(1)}
.mainnav__actions{display:flex;align-items:center;gap:18px;flex-shrink:0}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;
  border-radius:var(--r-ctl);border:1.5px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;
  transition:transform var(--tr),background-color var(--tr),border-color var(--tr),box-shadow var(--tr),color var(--tr);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-brand{background:var(--c-accent);color:#20211C;border-color:var(--c-accent);box-shadow:var(--sh-1)}
.btn-brand:hover{background:var(--c-accent-dark);border-color:var(--c-accent-dark);color:#20211C;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-brand:active{transform:none;box-shadow:none}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:#EAF1EE;color:var(--c-primary-dark);transform:translateY(-1px)}
.btn-ghost:active{transform:none}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary);
  border-bottom:1px solid transparent;padding-bottom:1px;
}
.link-arrow .arw{transition:transform var(--tr)}
.link-arrow:hover{color:var(--c-primary-dark);border-bottom-color:var(--c-accent)}
.link-arrow:hover .arw{transform:translateX(4px)}

.burger{
  display:none;width:44px;height:44px;margin-left:auto;
  background:transparent;border:1px solid var(--c-border);border-radius:var(--r-ctl);
  padding:0;cursor:pointer;position:relative;
}
.burger span{
  position:absolute;left:12px;right:12px;height:2px;background:var(--c-primary);
  border-radius:2px;transition:transform var(--tr),opacity var(--tr);
}
.burger span:nth-child(1){top:15px}
.burger span:nth-child(2){top:21px}
.burger span:nth-child(3){top:27px}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;z-index:120;
  background:var(--c-ink);color:#fff;padding:24px;
  transform:translateX(100%);transition:transform 240ms ease-out;
  display:flex;flex-direction:column;gap:18px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between}
.drawer__close{
  width:36px;height:36px;border-radius:var(--r-ctl);
  background:rgba(255,255,255,.08);color:#fff;border:0;font-size:20px;line-height:1;cursor:pointer;
}
.drawer__menu{display:flex;flex-direction:column}
.drawer__menu a{
  display:block;padding:14px 0;font-size:16px;color:var(--c-ink-text);
  border-bottom:1px solid rgba(255,255,255,.12);
}
.drawer__menu a.is-active{color:var(--c-accent);font-weight:700}
.drawer__menu a:hover{color:var(--c-accent)}
.drawer__cta{margin-top:6px;width:100%}
.scrim{
  position:fixed;inset:0;background:rgba(15,42,38,.55);z-index:110;
  opacity:0;visibility:hidden;transition:opacity var(--tr),visibility var(--tr);
}
.scrim.is-open{opacity:1;visibility:visible}
body.is-locked{overflow:hidden}

/* ---------- page head (category2 style: color + dots) ---------- */
.pagehead{
  position:relative;overflow:hidden;
  background:var(--c-primary);color:#fff;
  min-height:240px;display:flex;align-items:center;
  padding:44px 0;
}
.pagehead__pattern{
  position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(232,228,217,.22) 1px,transparent 1px);
  background-size:18px 18px;
  opacity:.6;
}
.pagehead__glow{
  position:absolute;right:-80px;top:-60px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(227,154,43,.28),transparent 68%);
  pointer-events:none;
}
.pagehead__inner{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(232,228,217,.78);margin-bottom:14px}
.crumb a{color:rgba(232,228,217,.78)}
.crumb a:hover{color:var(--c-accent)}
.crumb span.sep{color:rgba(232,228,217,.45)}
.crumb__cur{color:var(--c-accent);font-weight:600}
.pagehead h1{font-size:40px;line-height:1.25;color:#fff;max-width:22em}
.pagehead__sub{margin-top:12px;font-size:16px;color:rgba(232,228,217,.86);max-width:38em}
.pagehead__chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
  font-size:12px;color:#F1EEE4;
}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section--tint{background:var(--c-tint)}
.section--tight{padding:72px 0}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head h2{font-size:30px;line-height:1.3;color:var(--c-text)}
.sec-head p{margin-top:12px;font-size:16px;color:var(--c-muted);max-width:68ch}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:1px;color:var(--c-primary);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:4px;background:var(--c-accent);border-radius:2px;display:inline-block}

/* ---------- points grid ---------- */
.points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.point{
  display:flex;gap:18px;padding:24px;
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.point:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:rgba(22,86,75,.3)}
.point__idx{
  flex:0 0 44px;width:44px;height:44px;border-radius:10px;
  background:#EAF1EE;color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
}
.point h3{font-size:17px;line-height:1.45;color:var(--c-text)}
.point p{margin-top:6px;font-size:14px;line-height:1.7;color:var(--c-muted)}

/* ---------- notice ---------- */
.notice{
  margin-top:32px;display:flex;gap:18px;align-items:flex-start;
  background:#FBF2E1;border-left:4px solid var(--c-accent);
  border-radius:0 var(--r-card) var(--r-card) 0;
  padding:24px 28px;
}
.notice__tag{
  flex:0 0 auto;display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);background:rgba(227,154,43,.22);color:#7A4E0B;
  font-size:12px;font-weight:700;letter-spacing:.5px;
}
.notice h3{font-size:17px;line-height:1.5;color:#3B2A10}
.notice p{margin-top:6px;font-size:15px;line-height:1.8;color:#5A4520}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split + .split{margin-top:80px}
.split__media{position:relative}
.split__media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);box-shadow:var(--sh-2);
}
.split__media::after{
  content:"";position:absolute;right:-10px;bottom:-10px;width:64px;height:6px;
  background:var(--c-accent);border-radius:3px;
}
.split--flip .split__media{order:2}
.split--flip .split__body{order:1}
.split__body h2{font-size:28px;line-height:1.32;color:var(--c-text)}
.split__body > p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--c-muted);max-width:46ch}
.checklist{margin-top:20px;display:grid;gap:10px}
.checklist li{position:relative;padding-left:24px;font-size:15px;line-height:1.7;color:var(--c-muted)}
.checklist li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;
  background:var(--c-primary);border-radius:2px;
}
.checklist li strong{color:var(--c-text);font-weight:600}

/* ---------- FAQ ---------- */
.faq{max-width:900px}
.faq .accordion-item{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-card);overflow:hidden;margin-bottom:12px;box-shadow:var(--sh-1);
}
.faq .accordion-button{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:transparent;border:0;border-radius:0;
  font-size:17px;font-weight:700;color:var(--c-text);text-align:left;
  box-shadow:none;
}
.faq .accordion-button:not(.collapsed){color:var(--c-primary);background:#F3F7F5}
.faq .accordion-button:focus{box-shadow:inset 0 0 0 3px rgba(227,154,43,.35);z-index:2}
.faq .accordion-button::after{
  content:"+";background-image:none;width:28px;height:28px;flex:0 0 28px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;background:rgba(22,86,75,.1);color:var(--c-primary);
  font-size:18px;font-weight:700;line-height:1;
  transition:transform var(--tr),background-color var(--tr);
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(45deg);background:rgba(227,154,43,.28);color:#7A4E0B}
.faq .accordion-body{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--c-muted)}

/* ---------- closing ---------- */
.closing{background:var(--c-tint);padding:72px 0}
.closing__inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.closing h2{font-size:28px;line-height:1.32}
.closing p{margin-top:10px;font-size:15px;color:var(--c-muted);max-width:48ch}
.closing__actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:var(--c-ink-text);padding-top:64px}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.footer__brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px}
.footer__desc{font-size:14px;line-height:1.85;color:var(--c-ink-sub);max-width:34ch}
.footer__title{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px}
.footer__link{display:block;font-size:14px;line-height:1.6;color:var(--c-ink-sub);margin-bottom:10px}
.footer__link:hover{color:var(--c-accent)}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:12px;color:var(--c-ink-sub);flex-wrap:wrap;
}
.footer__bottom a{color:var(--c-ink-text)}
.footer__bottom a:hover{color:var(--c-accent)}

/* ---------- back to top ---------- */
.totop{
  position:fixed;right:24px;bottom:24px;z-index:90;
  width:46px;height:46px;border-radius:var(--r-ctl);
  background:var(--c-primary);color:#fff;border:0;font-size:18px;line-height:1;
  box-shadow:var(--sh-2);cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--tr),transform var(--tr),visibility var(--tr),background-color var(--tr);
}
.totop.is-on{opacity:1;visibility:visible;transform:none}
.totop:hover{background:var(--c-primary-dark)}

/* ---------- bootstrap overrides ---------- */
.breadcrumb,.badge,.pagination,.card,.form-control,.btn{box-shadow:none}
.accordion-button:not(.collapsed){box-shadow:none}
.accordion-button:focus{box-shadow:inset 0 0 0 3px rgba(227,154,43,.35);border-color:transparent}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .menu__link{padding:0 12px}
  .menu__link::after{left:12px;right:12px}
  .split{gap:40px}
}
@media (max-width:991px){
  .menu,.mainnav__actions .link-arrow{display:none}
  .burger{display:inline-block}
  .mainnav__inner{height:66px;gap:12px}
  .mainnav__actions{margin-left:12px}
  .section{padding:64px 0}
  .pagehead h1{font-size:32px}
  .points{grid-template-columns:1fr}
  .split{grid-template-columns:1fr;gap:28px}
  .split--flip .split__media{order:0}
  .split--flip .split__body{order:0}
  .split + .split{margin-top:56px}
  .split__media::after{right:auto;left:0}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .closing{padding:56px 0}
}
@media (max-width:767px){
  .topbar__tip{display:none}
  .topbar__right{gap:14px}
  .topbar__right .topbar__link:last-child{display:none}
  .pagehead{min-height:0;padding:36px 0 40px}
  .pagehead h1{font-size:30px}
  .pagehead__sub{font-size:15px}
  .sec-head{margin-bottom:32px}
  .sec-head h2{font-size:24px}
  .section{padding:48px 0}
  .section--tight{padding:40px 0}
  .notice{flex-direction:column;gap:12px;padding:20px}
  .split__body h2{font-size:22px}
  .closing h2{font-size:22px}
  .closing__actions{width:100%}
  .closing__actions .btn{flex:1 1 100%;}
  .footer__bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:575px){
  .wrap{padding:0 16px}
  .point{padding:20px;gap:14px}
  .point__idx{flex:0 0 40px;width:40px;height:40px;font-size:14px}
  .footer__grid{grid-template-columns:1fr;gap:28px}
  .brand__text{font-size:15px}
  .totop{right:16px;bottom:16px}
}

/* roulang page: category3 */
:root{
  --c-primary:#16564B;
  --c-primary-dark:#0E3A33;
  --c-primary-light:#2E8B7A;
  --c-primary-soft:#EAF1EE;
  --c-accent:#E39A2B;
  --c-accent-dark:#CF8A1F;
  --c-accent-soft:#FBF1DE;
  --c-bg:#F7F4ED;
  --c-surface:#FFFFFF;
  --c-layer:#EFEAE0;
  --c-ink:#0F2A26;
  --c-ink-2:#A8B5AE;
  --c-ink-text:#E8E4D9;
  --c-text:#1B2421;
  --c-text-2:#55605B;
  --c-text-3:#8A9490;
  --c-border:#DCD6C9;
  --c-ok:#2E7D5B;
  --c-warn:#C4703A;
  --c-err:#B3453B;
  --r-card:14px;
  --r-ctrl:10px;
  --r-pill:999px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(15,42,38,.06);
  --sh-2:0 8px 24px rgba(15,42,38,.08);
  --sh-3:0 12px 32px rgba(15,42,38,.12);
  --t:200ms ease-out;
  --f-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--f-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--c-primary-dark)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(227,154,43,.45);outline-offset:2px;box-shadow:inset 0 0 0 2px var(--c-primary);border-radius:6px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.sec{padding:96px 0}
.sec--layer{background:var(--c-layer)}
.sec--ink{background:var(--c-ink);color:var(--c-ink-text)}
.sec-head{max-width:720px;margin-bottom:40px}
.sec-head h2{font-size:30px;line-height:1.3;font-weight:700;letter-spacing:-.3px;color:var(--c-text)}
.sec-head p{margin-top:12px;font-size:16px;color:var(--c-text-2);max-width:68ch}
.sec--ink .sec-head h2{color:#fff}
.sec--ink .sec-head p{color:var(--c-ink-2)}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--c-ink);
  height:38px;
  overflow:hidden;
  transition:height var(--t),opacity var(--t);
}
.site-header.is-scrolled .topbar{height:0;opacity:0}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;height:38px;font-size:13px;color:var(--c-ink-2)}
.topbar__left{display:flex;align-items:center;gap:14px}
.topbar__domain{color:var(--c-ink-text);font-weight:600;letter-spacing:.4px}
.topbar__tip{color:var(--c-ink-2)}
.topbar__right{display:flex;align-items:center;gap:20px}
.topbar__link{color:var(--c-ink-text);display:inline-flex;align-items:center;gap:6px;font-size:13px}
.topbar__link:hover{color:var(--c-accent)}
.topbar__link .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030}
.mainnav{background:var(--c-surface);border-bottom:1px solid var(--c-border);transition:box-shadow var(--t)}
.site-header.is-scrolled .mainnav{box-shadow:var(--sh-1)}
.mainnav__inner{display:flex;align-items:center;gap:32px;min-height:74px}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
.brand__mark{
  width:42px;height:42px;border-radius:var(--r-ctrl);
  background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;letter-spacing:.5px;
  box-shadow:var(--sh-1);
}
.brand__text{font-size:17px;font-weight:700;color:var(--c-text);letter-spacing:-.2px;white-space:nowrap}
.menu{display:flex;align-items:center;gap:30px;margin-left:auto}
.menu__link{
  position:relative;display:inline-block;padding:24px 0;
  font-size:15px;font-weight:500;color:var(--c-text-2);
}
.menu__link::after{
  content:"";position:absolute;left:0;right:0;bottom:16px;height:3px;
  background:var(--c-primary);border-radius:3px;
  transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.menu__link:hover{color:var(--c-primary)}
.menu__link:hover::after{transform:scaleX(1)}
.menu__link.is-active{color:var(--c-primary);font-weight:700}
.menu__link.is-active::after{transform:scaleX(1)}
.mainnav__actions{display:flex;align-items:center;gap:16px;flex-shrink:0}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary)}
.link-arrow .arw{transition:transform var(--t)}
.link-arrow:hover .arw{transform:translateX(4px)}
.burger{
  display:none;width:44px;height:44px;margin-left:auto;
  background:transparent;border:1px solid var(--c-border);border-radius:var(--r-ctrl);
  padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
}
.burger span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;transition:background var(--t)}
.burger:hover span{background:var(--c-primary)}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:1080;
  background:rgba(15,42,38,.55);
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);
}
.drawer.is-open{opacity:1;visibility:visible}
.drawer__panel{
  position:absolute;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:var(--c-ink);color:var(--c-ink-text);
  padding:22px 22px 32px;display:flex;flex-direction:column;gap:24px;
  transform:translateX(100%);transition:transform var(--t);
  overflow-y:auto;
}
.drawer.is-open .drawer__panel{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between}
.drawer__close{
  width:38px;height:38px;border-radius:var(--r-ctrl);border:1px solid rgba(255,255,255,.2);
  background:transparent;color:#fff;font-size:20px;line-height:1;cursor:pointer;
}
.drawer__close:hover{background:rgba(255,255,255,.08)}
.drawer__nav{display:flex;flex-direction:column}
.drawer__nav a{
  color:var(--c-ink-text);font-size:16px;padding:15px 2px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.drawer__nav a:hover,.drawer__nav a.is-active{color:var(--c-accent)}
.drawer__cta{width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-ctrl);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.2px;
  border:1px solid transparent;cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
  text-decoration:none;
}
.btn-brand{background:var(--c-accent);border-color:var(--c-accent);color:#20211C;box-shadow:var(--sh-1)}
.btn-brand:hover{background:var(--c-accent-dark);border-color:var(--c-accent-dark);color:#20211C;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-brand:active{transform:translateY(0)}
.btn-outline{background:transparent;border:1.5px solid var(--c-primary);color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--c-primary);padding:0 4px;height:auto}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn:focus-visible{outline:3px solid rgba(227,154,43,.45);outline-offset:2px;box-shadow:inset 0 0 0 2px var(--c-primary)}

/* ---------- 页头 ---------- */
.pagehead{
  position:relative;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  padding:56px 0 64px;
  overflow:hidden;
}
.pagehead::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(22,86,75,.16) 1px,transparent 1px);
  background-size:18px 18px;opacity:.5;pointer-events:none;
  mask-image:linear-gradient(115deg,rgba(0,0,0,.9),transparent 62%);
  -webkit-mask-image:linear-gradient(115deg,rgba(0,0,0,.9),transparent 62%);
}
.pagehead .wrap{position:relative;z-index:1}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:26px}
.crumb a{color:var(--c-text-2)}
.crumb a:hover{color:var(--c-primary)}
.crumb span{color:var(--c-border)}
.crumb em{font-style:normal;color:var(--c-primary);font-weight:600}
.pagehead__grid{display:grid;grid-template-columns:1.35fr .85fr;gap:48px;align-items:start}
.tag-pill{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--c-accent-soft);color:#7A5210;
  border:1px solid rgba(227,154,43,.4);
  font-size:12px;font-weight:600;letter-spacing:.6px;
  padding:5px 13px;border-radius:var(--r-pill);margin-bottom:18px;
}
.tag-pill::before{content:"";width:6px;height:6px;background:var(--c-accent);border-radius:1px;transform:rotate(45deg)}
.pagehead h1{
  font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.3px;
  color:var(--c-text);max-width:19ch;
}
.pagehead__sub{margin-top:18px;font-size:18px;line-height:1.7;color:var(--c-text-2);max-width:34ch}
.pagehead__aside{
  background:var(--c-bg);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--sh-1);
}
.pagehead__aside p{font-size:15px;color:var(--c-text-2);line-height:1.8}
.mini-list{margin-top:18px;display:flex;flex-direction:column;gap:11px}
.mini-list li{display:flex;gap:10px;font-size:14px;color:var(--c-text);line-height:1.6}
.mini-list li::before{
  content:"";width:9px;height:9px;margin-top:7px;flex-shrink:0;
  background:var(--c-primary-soft);border:1.5px solid var(--c-primary);border-radius:2px;
}
.pagehead__aside .btn{margin-top:22px;width:100%}

/* ---------- 主体两栏 ---------- */
.helpbody{padding:80px 0 96px}
.toc{
  position:sticky;top:96px;
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh-1);
}
.toc__title{
  font-size:13px;font-weight:700;letter-spacing:1.4px;color:var(--c-text-3);
  text-transform:uppercase;padding-bottom:14px;border-bottom:1px solid var(--c-border);margin-bottom:14px;
}
.toc__link{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:8px;
  font-size:15px;color:var(--c-text-2);
  border-left:3px solid transparent;
  transition:background var(--t),color var(--t),border-color var(--t);
}
.toc__link i{
  font-style:normal;font-size:12px;font-weight:700;color:var(--c-text-3);
  width:22px;flex-shrink:0;
}
.toc__link:hover{background:var(--c-bg);color:var(--c-primary)}
.toc__link.is-current{background:var(--c-primary-soft);color:var(--c-primary);font-weight:700;border-left-color:var(--c-primary)}
.toc__link.is-current i{color:var(--c-primary)}
.toc__foot{margin-top:20px;padding-top:18px;border-top:1px solid var(--c-border)}
.toc__foot p{font-size:14px;color:var(--c-text-2);margin-bottom:12px}
.toc__foot .btn{width:100%}

.hgroup{margin-bottom:64px;scroll-margin-top:120px}
.hgroup:last-child{margin-bottom:0}
.hgroup__head{display:flex;align-items:baseline;gap:14px;margin-bottom:26px;padding-bottom:16px;border-bottom:1px solid var(--c-border)}
.hgroup__head h2{
  position:relative;padding-left:16px;
  font-size:30px;line-height:1.3;font-weight:700;letter-spacing:-.3px;color:var(--c-text);
}
.hgroup__head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  background:var(--c-primary);border-radius:2px;
}
.hgroup__head span{font-size:13px;color:var(--c-text-3)}

.qgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.qcard{
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:box-shadow var(--t),border-color var(--t),transform var(--t);
}
.qcard:hover{box-shadow:var(--sh-2);border-color:rgba(22,86,75,.3);transform:translateY(-3px)}
.qcard h3{font-size:17px;font-weight:700;line-height:1.45;color:var(--c-text);margin-bottom:10px;display:flex;gap:10px}
.qcard h3 i{
  font-style:normal;flex-shrink:0;width:24px;height:24px;border-radius:6px;
  background:var(--c-primary);color:#fff;font-size:12px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;margin-top:2px;
}
.qcard p{font-size:15px;line-height:1.8;color:var(--c-text-2)}

.figure{
  border:1px solid var(--c-border);border-radius:var(--r-card);overflow:hidden;
  background:var(--c-surface);box-shadow:var(--sh-1);margin-bottom:32px;
}
.figure img{width:100%;aspect-ratio:16/7;object-fit:cover;border-radius:0}
.figure figcaption{
  padding:12px 18px;font-size:13px;color:var(--c-text-3);
  border-top:1px solid var(--c-border);background:var(--c-bg);
}

.steps{position:relative;display:flex;flex-direction:column;gap:8px;padding-left:6px}
.steps::before{
  content:"";position:absolute;left:23px;top:18px;bottom:24px;
  width:0;border-left:1px dashed rgba(22,86,75,.35);
}
.step{
  position:relative;display:grid;grid-template-columns:48px 1fr;gap:20px;
  padding:18px 0;
}
.step__num{
  position:relative;z-index:1;
  width:44px;height:44px;border-radius:50%;
  border:1.5px solid var(--c-primary);background:var(--c-bg);
  color:var(--c-primary);font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;
}
.step__body h3{font-size:17px;font-weight:700;color:var(--c-text);margin-bottom:6px}
.step__body p{font-size:15px;line-height:1.8;color:var(--c-text-2);max-width:60ch}
.step__body .chip{
  display:inline-block;margin-top:10px;font-size:12px;font-weight:600;
  color:var(--c-primary);background:var(--c-primary-soft);
  padding:3px 10px;border-radius:var(--r-pill);
}

/* ---------- 手风琴 ---------- */
.acc .accordion-item{
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.acc .accordion-item:last-child{margin-bottom:0}
.acc .accordion-button{
  width:100%;
  background:var(--c-surface);
  color:var(--c-text);
  font-size:17px;font-weight:700;line-height:1.45;
  padding:18px 22px;
  border-radius:var(--r-card);
  box-shadow:none !important;
}
.acc .accordion-button:not(.collapsed){
  background:var(--c-primary-soft);
  color:var(--c-primary);
  border-bottom:1px solid var(--c-border);
}
.acc .accordion-button:focus{box-shadow:none !important;outline:3px solid rgba(227,154,43,.45);outline-offset:-3px}
.acc .accordion-button::after{
  content:"+";
  background-image:none !important;
  width:28px;height:28px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:600;line-height:1;color:var(--c-primary);
  transform:none;transition:transform var(--t);
}
.acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--c-primary-dark)}
.acc .accordion-body{
  padding:20px 22px 24px;
  font-size:15px;line-height:1.8;color:var(--c-text-2);
}
.acc .accordion-body strong{color:var(--c-text)}

/* ---------- 安全提示高亮卡 ---------- */
.hint{
  display:grid;grid-template-columns:52px 1fr;gap:20px;
  background:var(--c-accent-soft);
  border-left:4px solid var(--c-accent);
  border-radius:var(--r-card);
  padding:24px 26px;
  margin-top:32px;
  box-shadow:var(--sh-1);
}
.hint__icon{
  width:44px;height:44px;border-radius:12px;background:var(--c-accent);color:#20211C;
  display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;
}
.hint h3{font-size:17px;font-weight:700;color:#5C3E07;margin-bottom:6px}
.hint p{font-size:15px;line-height:1.8;color:#6A4C12}

/* ---------- 表单卡 ---------- */
.formsec{padding:0 0 96px}
.formcard{
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-2);
  overflow:hidden;
  display:grid;
  grid-template-columns:.82fr 1.18fr;
}
.formcard__intro{
  background:var(--c-ink);
  color:var(--c-ink-text);
  padding:44px 38px;
  display:flex;flex-direction:column;justify-content:center;
}
.formcard__intro h2{font-size:26px;line-height:1.35;font-weight:700;color:#fff;letter-spacing:-.3px}
.formcard__intro p{margin-top:14px;font-size:15px;line-height:1.8;color:var(--c-ink-2)}
.formcard__intro .meta{margin-top:24px;display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--c-ink-2)}
.formcard__intro .meta b{color:var(--c-accent);font-weight:600}
.formcard__body{padding:40px 38px}
.fgrid{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:600;color:var(--c-text)}
.field label .req{color:var(--c-accent);margin-left:4px}
.form-control,.form-select{
  height:48px;border-radius:var(--r-ctrl);
  border:1px solid var(--c-border);
  background:var(--c-surface);
  color:var(--c-text);font-size:15px;
  padding:0 14px;
  box-shadow:none;
  transition:border-color var(--t),box-shadow var(--t);
}
textarea.form-control{height:auto;min-height:118px;padding:12px 14px;line-height:1.7;resize:vertical}
.form-control::placeholder{color:var(--c-text-3)}
.form-control:focus,.form-select:focus{
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(22,86,75,.14);
  outline:none;
}
.form-select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--c-text-2) 50%),linear-gradient(135deg,var(--c-text-2) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.formcard__body .btn{width:100%;margin-top:22px}
.formtip{margin-top:14px;font-size:13px;color:var(--c-text-3);line-height:1.7}
.formnote{margin-top:14px;font-size:13px;color:var(--c-text-3);min-height:20px;line-height:1.7}
.formnote.is-ok{color:var(--c-ok);font-weight:600}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:var(--c-ink-2);padding:72px 0 0}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer__brand{display:flex;align-items:center;gap:12px;color:#fff;font-size:17px;font-weight:700;margin-bottom:16px}
.footer__brand .brand__mark{width:38px;height:38px;font-size:13px;background:var(--c-primary-light)}
.footer__desc{font-size:14px;line-height:1.8;color:var(--c-ink-2);max-width:34ch}
.footer__title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.3px}
.footer__link{display:block;font-size:14px;color:var(--c-ink-2);line-height:1.9;margin-bottom:8px;transition:color var(--t)}
.footer__link:hover{color:var(--c-accent)}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.15);
  padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12px;color:rgba(168,181,174,.85);
}
.footer__bottom a{color:rgba(232,228,217,.9)}
.footer__bottom a:hover{color:var(--c-accent)}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .pagehead h1{font-size:36px}
  .footer__grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:991.98px){
  .sec{padding:64px 0}
  .menu,.mainnav__actions{display:none}
  .burger{display:inline-flex}
  .mainnav__inner{min-height:66px}
  .topbar__tip{display:none}
  .pagehead{padding:40px 0 48px}
  .pagehead__grid{grid-template-columns:1fr;gap:32px}
  .pagehead h1{font-size:32px;max-width:100%}
  .pagehead__sub{max-width:100%}
  .helpbody{padding:56px 0 64px}
  .toc{position:static;margin-bottom:32px}
  .formcard{grid-template-columns:1fr}
  .formcard__intro{padding:32px 26px}
  .formcard__body{padding:32px 26px}
  .hgroup__head h2{font-size:24px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer__desc{max-width:100%}
}
@media (max-width:767.98px){
  .qgrid{grid-template-columns:1fr}
  .fgrid{grid-template-columns:1fr}
  .step{grid-template-columns:40px 1fr;gap:14px}
  .step__num{width:38px;height:38px;font-size:14px}
  .steps::before{left:20px}
  .hint{grid-template-columns:1fr;gap:14px}
  .figure img{aspect-ratio:16/9}
}
@media (max-width:575.98px){
  .wrap{padding:0 16px}
  .sec{padding:48px 0}
  .topbar__right .topbar__link:last-child{display:none}
  .pagehead h1{font-size:28px;line-height:1.3}
  .pagehead__sub{font-size:16px}
  .hgroup__head{flex-direction:column;gap:6px}
  .hgroup__head h2{font-size:22px}
  .sec-head h2{font-size:22px}
  .qcard{padding:20px}
  .formcard__intro,.formcard__body{padding:26px 20px}
  .footer__grid{grid-template-columns:1fr;gap:28px}
  .footer__bottom{flex-direction:column;align-items:flex-start}
  .btn{width:100%}
  .btn-sm{width:auto}
  .pagehead__aside .btn{width:100%}
  .toc__foot .btn{width:100%}
  .formcard__body .btn{width:100%}
}