/* roulang page: index */
:root{
  --ink-900:#06100E;
  --ink-800:#0B1A17;
  --ink-700:#10241F;
  --glass:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.10);
  --brand:#1FC8A0;
  --brand-deep:#17A886;
  --accent:#F2A93B;
  --text:#E8F2EF;
  --muted:#94A8A3;
  --paper:#F7FAF9;
  --paper-text:#16211F;
  --ok:#38D39F;
  --warn:#E4574C;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:12px;
  --shadow-card:0 20px 50px -24px rgba(0,0,0,.72), inset 0 1px 0 rgba(255,255,255,.08);
  --container:1200px;
  --gutter:24px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;
  font-family:var(--font-cn);
  font-size:16px;line-height:1.85;font-weight:400;
  color:var(--text);
  background-color:var(--ink-900);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-deep)}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0}
ul,ol{padding-left:0;list-style:none}
button{font-family:inherit}
*:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
::selection{background:rgba(31,200,160,.28);color:#fff}

.container-ui{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}
.section{padding:clamp(56px,7vw,96px) 0}
.section-tight{padding:clamp(44px,5vw,72px) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-title{font-size:clamp(23px,2.6vw,32px);line-height:1.28;font-weight:650;letter-spacing:.01em;color:var(--text)}
.section-desc{margin-top:10px;font-size:15px;color:var(--muted);max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;color:var(--brand);text-transform:uppercase;font-family:var(--font-num);margin-bottom:12px}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--brand);display:inline-block}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid #E4EBE8;
  box-shadow:0 2px 12px rgba(6,16,14,.06);
}
.nav-wrap{
  display:flex;align-items:center;gap:20px;
  height:66px;max-width:var(--container);margin:0 auto;padding:0 var(--gutter);
}
.brand{display:inline-flex;align-items:center;gap:10px;color:#0B1A17;font-weight:700;font-size:17px;letter-spacing:.01em;white-space:nowrap}
.brand:hover{color:#0B1A17}
.brand svg{flex:none}
.brand .brand-sub{font-size:11px;font-weight:600;color:#6C7D78;letter-spacing:.14em;display:block;line-height:1;margin-top:3px}
.nav-menu{display:flex;align-items:center;gap:2px;flex:1;justify-content:center}
.nav-item-link{
  position:relative;display:inline-flex;align-items:center;
  height:66px;padding:0 11px;font-size:15px;color:#35433F;text-decoration:none;
  transition:color .2s var(--ease);white-space:nowrap;
}
.nav-item-link::after{
  content:"";position:absolute;left:11px;right:11px;bottom:16px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-item-link:hover{color:#0B1A17}
.nav-item-link:hover::after{transform:scaleX(1)}
.nav-item-link.active{color:#0B1A17;font-weight:600}
.nav-item-link.active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:12px;flex:none}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search svg{position:absolute;left:14px;width:16px;height:16px;color:#8A9A95;pointer-events:none}
.nav-search input{
  width:210px;height:40px;border-radius:999px;border:1px solid #E4EBE8;background:#F7FAF9;
  padding:0 16px 0 38px;font-size:13px;color:#16211F;font-family:var(--font-cn);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.nav-search input::placeholder{color:#8A9A95}
.nav-search input:focus{outline:none;background:#fff;border-color:rgba(31,200,160,.55);box-shadow:0 0 0 3px rgba(31,200,160,.16)}
.ui-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;font-family:var(--font-cn);
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  min-height:44px;transition:transform .2s var(--ease),box-shadow .24s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.ui-btn-primary{
  padding:13px 28px;border-radius:999px;color:#04120F;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:0 0 0 1px rgba(31,200,160,.45),0 10px 30px -8px rgba(31,200,160,.5);
}
.ui-btn-ghost{
  padding:13px 26px;border-radius:var(--radius-btn);color:var(--text);
  background:transparent;border:1px solid var(--line);
}
.ui-btn-ghost:hover{border-color:rgba(31,200,160,.5);color:var(--text)}
.ui-btn-text{
  padding:0;border:0;background:none;color:var(--accent);font-weight:600;
  text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;min-height:auto;
}
.ui-btn-text:hover{color:var(--accent);text-decoration-thickness:2px}
.nav-cta{padding:10px 20px;font-size:14px;min-height:40px}
.burger{
  display:none;width:44px;height:44px;border:1px solid #E4EBE8;border-radius:12px;background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;padding:0;cursor:pointer;
}
.burger span{display:block;width:18px;height:2px;background:#0B1A17;border-radius:2px;transition:transform .22s var(--ease),opacity .2s var(--ease)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 抽屉 */
.offcanvas.mobile-drawer{background:#fff;color:#16211F;width:min(90vw,360px)}
.mobile-drawer .offcanvas-header{border-bottom:1px solid #E4EBE8;padding:16px 20px}
.mobile-drawer .offcanvas-body{padding:12px 20px 28px}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid #E4EBE8;background:#fff;color:#16211F;font-size:20px;line-height:1;display:inline-flex;align-items:center;justify-content:center}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 4px;color:#16211F;font-size:15px;
  border-bottom:1px solid #EEF3F1;text-decoration:none;
}
.drawer-link:hover{color:var(--brand-deep)}
.drawer-link.active{color:var(--brand-deep);font-weight:600}
.drawer-search{margin:18px 0 14px;position:relative;display:flex;align-items:center}
.drawer-search svg{position:absolute;left:14px;width:16px;height:16px;color:#8A9A95}
.drawer-search input{width:100%;height:44px;border-radius:12px;border:1px solid #E4EBE8;background:#F7FAF9;padding:0 14px 0 38px;font-size:14px;color:#16211F}
.drawer-search input:focus{outline:none;border-color:rgba(31,200,160,.55);background:#fff}
.drawer-cta{width:100%;margin-top:6px}

/* Hero */
.hero{
  position:relative;isolation:isolate;overflow:hidden;
  background-color:var(--ink-900);
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  padding:clamp(44px,6vw,80px) 0 clamp(40px,5vw,68px);
}
.hero::before{content:"";position:absolute;inset:0;background:rgba(6,16,14,.72);z-index:0}
.hero::after{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(58% 50% at 50% 0%,rgba(31,200,160,.12),rgba(31,200,160,0) 72%);
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;min-height:520px}
.hero-copy{max-width:640px}
.hero h1{
  font-size:clamp(30px,4.2vw,52px);line-height:1.18;font-weight:700;letter-spacing:.01em;
  color:#fff;margin:14px 0 0;
}
.hero-sub{margin-top:18px;font-size:clamp(15px,1.4vw,18px);line-height:1.8;color:#C9D8D3;max-width:560px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.ui-badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1.6;padding:5px 10px;border-radius:8px;
  background:var(--glass);border:1px solid var(--line);color:var(--text);
  backdrop-filter:blur(14px) saturate(120%);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.ui-glass{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-card);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
@supports not (backdrop-filter: blur(4px)){
  .ui-glass,.ui-badge{background:var(--ink-700)}
}
.hero-card{padding:26px}
.hero-card h2{font-size:17px;font-weight:600;color:#fff;letter-spacing:.01em}
.hero-card .card-note{margin-top:6px;font-size:12px;color:var(--muted)}
.status-list{margin-top:18px;display:flex;flex-direction:column}
.status-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 0;border-top:1px solid var(--line)}
.status-row:first-child{border-top:0}
.status-label{font-size:13px;color:var(--muted)}
.status-value{font-size:13px;font-weight:600;color:var(--text);text-align:right}
.status-value.is-ok{color:var(--ok)}
.status-value.is-warn{color:var(--accent)}

/* 指标条 */
.stat-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:28px 0}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.stat-item{display:flex;align-items:baseline;gap:10px}
.stat-num{font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--brand);letter-spacing:-.01em;line-height:1}
.stat-label{font-size:12px;color:var(--muted);line-height:1.6}

/* 卡片网格 */
.entry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.ui-card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  background:var(--ink-800);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.ui-card:hover{border-color:rgba(31,200,160,.28);box-shadow:0 26px 58px -26px rgba(0,0,0,.8),inset 0 1px 0 rgba(255,255,255,.1)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--ink-700)}
.card-media img{width:100%;height:100%;object-fit:cover}
.card-media .ui-badge{position:absolute;left:12px;top:12px;background:rgba(11,26,23,.6)}
.card-body{padding:20px 22px 18px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:17px;line-height:1.45;font-weight:600;color:var(--text)}
.card-desc{font-size:13px;line-height:1.75;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:12px;border-top:1px solid var(--line);font-size:12px;color:var(--muted);font-family:var(--font-num)}
.card-arrow{color:var(--brand);transition:transform .24s var(--ease);display:inline-flex}
.ui-card:hover .card-arrow{transform:translateX(4px)}

/* 官方入口分区 */
.portal{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:start}
.portal-figure{position:relative;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line)}
.portal-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.portal-tag{
  position:absolute;left:14px;bottom:14px;
  display:inline-flex;align-items:center;gap:6px;font-size:12px;padding:6px 10px;
  background:rgba(11,26,23,.72);border:1px solid var(--line);border-radius:4px;color:var(--text);
  backdrop-filter:blur(10px);
}
.portal-caption{margin-top:14px;font-size:12px;color:var(--muted)}
.portal-list{display:flex;flex-direction:column;gap:4px}
.portal-item{
  display:flex;align-items:flex-start;gap:18px;padding:18px 16px;border-radius:14px;
  border-bottom:1px solid var(--line);transition:background .22s var(--ease);
}
.portal-item:last-child{border-bottom:0}
.portal-item:hover{background:var(--ink-800)}
.portal-num{
  flex:none;font-family:var(--font-num);font-size:34px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1.4px var(--accent);letter-spacing:-.02em;
}
.portal-text h3{font-size:16px;font-weight:600;color:var(--text);line-height:1.5}
.portal-text p{margin-top:4px;font-size:13px;color:var(--muted);line-height:1.7}
.portal-go{margin-left:auto;color:var(--muted);flex:none;transition:transform .22s var(--ease),color .22s var(--ease)}
.portal-item:hover .portal-go{color:var(--brand);transform:translateX(4px)}

/* 评价轮播 */
.testi-carousel{position:relative;max-width:860px;margin:0 auto}
.testi-slide{padding:0 4px}
.testi-card{padding:28px;border-radius:var(--radius-card)}
.testi-top{display:flex;align-items:center;gap:14px}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:none;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(31,200,160,.28),rgba(31,200,160,.08));
  border:1px solid rgba(31,200,160,.35);color:var(--brand);font-weight:700;font-size:15px;
}
.testi-name{font-size:14px;font-weight:600;color:var(--text)}
.testi-meta{font-size:12px;color:var(--muted)}
.stars{margin-left:auto;color:var(--accent);font-size:13px;letter-spacing:2px;display:inline-flex;gap:2px}
.testi-quote{margin-top:16px;font-size:14px;line-height:1.85;color:#C9D8D3}
.testi-carousel .carousel-inner{padding-bottom:0}
.testi-carousel .carousel-indicators{position:static;margin:24px 0 0;display:flex;justify-content:center;gap:8px}
.testi-carousel .carousel-indicators [data-bs-target]{
  width:24px;height:2px;background:rgba(255,255,255,.28);border:0;border-radius:2px;
  opacity:1;transition:width .24s var(--ease),background .24s var(--ease);
}
.testi-carousel .carousel-indicators .active{width:44px;background:var(--brand)}
.testi-carousel .carousel-control-prev,
.testi-carousel .carousel-control-next{
  width:44px;height:44px;top:calc(50% - 46px);opacity:1;background:var(--glass);
  border:1px solid var(--line);border-radius:50%;backdrop-filter:blur(10px);
  display:flex;align-items:center;justify-content:center;color:var(--text);
}
.testi-carousel .carousel-control-prev{left:-64px}
.testi-carousel .carousel-control-next{right:-64px}
.testi-carousel .carousel-control-prev:hover,
.testi-carousel .carousel-control-next:hover{background:rgba(31,200,160,.16);color:#fff}

/* 保障条 */
.guarantee{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:36px 0}
.guarantee-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.guarantee-item{display:flex;gap:14px;align-items:flex-start;padding:0 24px;border-left:1px solid var(--line)}
.guarantee-item:first-child{border-left:0;padding-left:0}
.guarantee-item svg{flex:none;color:var(--brand)}
.guarantee-item h3{font-size:15px;font-weight:600;color:var(--text);line-height:1.5}
.guarantee-item p{font-size:13px;color:var(--muted);line-height:1.7;margin-top:2px}

/* CTA 浅色块 */
.cta-band{
  background:var(--paper);color:var(--paper-text);
  border-radius:20px;padding:clamp(28px,4vw,44px);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(21px,2.4vw,28px);line-height:1.35;font-weight:650;color:var(--paper-text)}
.cta-band p{margin-top:8px;font-size:14px;color:#4B5C58;max-width:520px}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.cta-band .ui-btn-text{color:#8A5C10;text-decoration-color:#C9902F}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:var(--ink-800);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(31,200,160,.28)}
.news-card-link{display:flex;flex-direction:column;height:100%;color:inherit;text-decoration:none}
.news-card-link:hover{color:inherit}
.news-thumb{
  aspect-ratio:16/10;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(31,200,160,.14),rgba(255,255,255,.03));
  border-bottom:1px solid var(--line);
  font-size:44px;font-weight:700;color:rgba(233,242,239,.16);letter-spacing:.02em;
}
.news-body{padding:20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body .ui-badge{align-self:flex-start;background:rgba(255,255,255,.05)}
.news-title{font-size:16px;font-weight:600;line-height:1.5;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-desc{font-size:13px;line-height:1.75;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted);font-family:var(--font-num)}
.news-arrow{color:var(--brand);transition:transform .22s var(--ease)}
.news-card:hover .news-arrow{transform:translateX(4px)}
.empty-state{
  grid-column:1 / -1;min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;border:1px dashed var(--line);border-radius:var(--radius-card);background:rgba(255,255,255,.02);
  padding:36px 20px;text-align:center;color:var(--muted);font-size:14px;
}
.empty-state svg{color:rgba(31,200,160,.5)}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:44px;align-items:start}
.faq-acc .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.faq-acc .accordion-button{
  background:transparent;color:var(--text);font-size:16px;font-weight:600;line-height:1.6;
  padding:22px 44px 22px 0;box-shadow:none;border:0;
}
.faq-acc .accordion-button:not(.collapsed){background:transparent;color:var(--brand)}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:2px}
.faq-acc .accordion-button::after{
  content:"+";background-image:none;width:auto;height:auto;font-size:22px;line-height:1;font-weight:400;
  color:var(--brand);transform:none;transition:transform .22s var(--ease);
  position:absolute;right:4px;top:50%;margin-top:-14px;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.faq-acc .accordion-body{padding:0 40px 24px 0;font-size:15px;line-height:1.85;color:var(--muted)}
.faq-aside{padding:26px;border-radius:var(--radius-card)}
.faq-aside h3{font-size:17px;font-weight:600;color:var(--text)}
.faq-aside p{margin-top:10px;font-size:13px;line-height:1.8;color:var(--muted)}
.faq-aside .ui-btn{margin-top:18px;width:100%}
.vertical-tag{
  writing-mode:vertical-rl;font-size:11px;letter-spacing:.24em;color:rgba(148,168,163,.55);
  border-left:1px solid var(--line);padding-left:10px;height:120px;display:flex;align-items:center;
  margin-bottom:18px;
}

/* 页脚 */
.site-footer{background:var(--ink-800);border-top:1px solid var(--line);padding:clamp(44px,5vw,64px) 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16px}
.footer-brand svg{color:var(--brand)}
.footer-about{margin-top:14px;font-size:13px;line-height:1.85;color:var(--muted);max-width:320px}
.footer-kw{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-kw span{font-size:12px;padding:4px 10px;border-radius:8px;background:rgba(255,255,255,.05);border:1px solid var(--line);color:#B9CBC6}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13px;color:var(--muted)}
.footer-links a:hover{color:var(--brand)}
.footer-contact{font-size:13px;line-height:1.9;color:var(--muted)}
.footer-contact strong{display:block;color:var(--text);font-size:13px;font-weight:600;margin-bottom:6px}
.footer-bottom{
  margin-top:40px;border-top:1px solid var(--line);padding:18px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--brand)}

/* 返回顶部 */
.to-top{
  position:fixed;right:20px;bottom:20px;width:48px;height:48px;border-radius:50%;
  background:rgba(11,26,23,.85);border:1px solid var(--line);color:var(--text);
  display:flex;align-items:center;justify-content:center;z-index:1040;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
  backdrop-filter:blur(10px);cursor:pointer;
}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{color:var(--brand);border-color:rgba(31,200,160,.4)}

/* 入场动效 */
.rise{opacity:0;transform:translateY(8px);transition:opacity .3s var(--ease),transform .3s var(--ease)}
.rise.in{opacity:1;transform:none}

@media (hover:hover){
  .ui-btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);color:#04120F;box-shadow:0 0 0 1px rgba(31,200,160,.6),0 14px 34px -8px rgba(31,200,160,.6)}
  .ui-btn-ghost:hover{transform:translateY(-1px)}
  .ui-card:hover{transform:translateY(-4px)}
  .ui-btn-primary:active,.ui-btn-ghost:active{transform:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .rise{opacity:1;transform:none}
}

/* 响应式 */
@media (max-width:1199px){
  .entry-grid{grid-template-columns:repeat(3,1fr)}
  .testi-carousel .carousel-control-prev,
  .testi-carousel .carousel-control-next{display:none}
  .nav-search input{width:170px}
  .nav-item-link{padding:0 8px;font-size:14px}
  .nav-item-link::after{left:8px;right:8px}
}
@media (max-width:991px){
  .nav-menu,.nav-search,.nav-right .nav-cta{display:none}
  .burger{display:inline-flex}
  .nav-wrap{gap:12px;justify-content:space-between}
  .hero-inner{grid-template-columns:1fr;gap:32px;min-height:auto}
  .hero-copy{max-width:none}
  .portal{grid-template-columns:1fr;gap:28px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .guarantee-grid{grid-template-columns:repeat(2,1fr);gap:24px}
  .guarantee-item{border-left:0;padding:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .stat-grid{gap:16px}
}
@media (max-width:767px){
  .entry-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band{flex-direction:column;align-items:flex-start}
  .stat-item{flex-direction:column;align-items:flex-start;gap:6px}
  .section-head{margin-bottom:26px}
}
@media (max-width:575px){
  .entry-grid,.news-grid{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr;gap:14px}
  .stat-strip{padding:22px 0}
  .guarantee-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-badges{gap:8px}
  .hero-card{padding:22px}
  .footer-bottom{font-size:12px}
  .portal-num{font-size:28px}
}

/* roulang page: category1 */
:root{
  --ink-900:#06100E;
  --ink-800:#0B1A17;
  --ink-700:#10241F;
  --glass:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.10);
  --brand:#1FC8A0;
  --brand-deep:#17A886;
  --accent:#F2A93B;
  --text:#E8F2EF;
  --muted:#94A8A3;
  --paper:#F7FAF9;
  --paper-text:#16211F;
  --ok:#38D39F;
  --warn:#E4574C;
  --hair:#E4EBE8;
  --nav-ink:#0B1A17;
  --nav-text:#35433F;
  --r-card:16px;
  --r-img:12px;
  --r-input:12px;
  --shadow-card:0 20px 50px -24px rgba(0,0,0,.72), inset 0 1px 0 rgba(255,255,255,.08);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease)}
a:hover{color:var(--brand)}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
::selection{background:rgba(31,200,160,.28);color:#fff}

/* ---------- 容器 ---------- */
.container-ui{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:clamp(56px,7vw,96px) 0}
.section--tight{padding:clamp(40px,5vw,64px) 0}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--hair);
  box-shadow:0 2px 12px rgba(6,16,14,.06);
}
.header-inner{
  max-width:1200px;margin:0 auto;padding:0 24px;
  height:66px;display:flex;align-items:center;gap:14px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:inline-flex;color:var(--brand)}
.brand-text{font-size:17px;font-weight:700;color:var(--nav-ink);letter-spacing:.01em;white-space:nowrap}
.brand-sub{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.08em;line-height:1}
.nav-menu{display:flex;align-items:center;gap:2px;flex:1 1 auto;min-width:0}
.nav-item-link{
  position:relative;display:inline-flex;align-items:center;height:66px;
  padding:0 11px;font-size:15px;color:var(--nav-text);white-space:nowrap;
}
.nav-item-link::after{
  content:"";position:absolute;left:11px;right:11px;bottom:0;height:2px;
  background:transparent;transition:background .2s var(--ease);
}
.nav-item-link:hover{color:var(--nav-ink)}
.nav-item-link.active{color:var(--nav-ink);font-weight:600}
.nav-item-link.active::after{background:var(--brand)}
.header-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.search-ui{position:relative;display:flex;align-items:center}
.search-ui svg{position:absolute;left:13px;color:#8A9A95;pointer-events:none}
.search-ui input{
  width:172px;height:40px;border-radius:999px;border:1px solid var(--hair);
  background:#FBFDFC;color:var(--nav-ink);font-size:13px;
  padding:0 14px 0 36px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-ui input::placeholder{color:#93A39E}
.search-ui input:focus{outline:none;border-color:rgba(31,200,160,.6);box-shadow:0 0 0 3px rgba(31,200,160,.16)}

.ui-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;cursor:pointer;font-weight:600;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.ui-btn--primary{
  padding:14px 28px;border-radius:999px;font-size:15px;color:#04120F;
  background:linear-gradient(135deg,#1FC8A0 0%,#17A886 100%);
  box-shadow:0 0 0 1px rgba(31,200,160,.45),0 10px 30px -8px rgba(31,200,160,.5);
}
.ui-btn--primary:hover{background:linear-gradient(135deg,#28D6AD 0%,#1CB391 100%);color:#04120F}
.ui-btn--ghost{
  padding:13px 26px;border-radius:12px;font-size:15px;color:var(--text);
  background:transparent;border:1px solid var(--line);
}
.ui-btn--ghost:hover{border-color:rgba(31,200,160,.45);color:var(--brand)}
.ui-btn--link{
  padding:0;color:var(--accent);font-size:15px;font-weight:600;
  border-bottom:2px solid var(--accent);padding-bottom:2px;border-radius:0;
}
.ui-btn--link:hover{color:#FFC46A;border-color:#FFC46A}
.ui-btn--sm{padding:10px 20px;font-size:14px}
.ui-btn:active{transform:translateY(0)}
@media (hover:hover){
  .ui-btn--primary:hover{transform:translateY(-1px)}
  .ui-btn--ghost:hover{transform:translateY(-1px)}
}

.hamburger{
  display:none;width:44px;height:44px;border:1px solid var(--hair);border-radius:12px;
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--nav-ink);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 移动抽屉 */
.drawer-ui{background:#fff;color:var(--nav-ink);width:min(340px,86vw);border-left:1px solid var(--hair)}
.drawer-ui .offcanvas-header{padding:18px 20px;border-bottom:1px solid var(--hair)}
.drawer-ui .brand-text{color:var(--nav-ink)}
.drawer-ui .offcanvas-body{padding:10px 0 0;display:flex;flex-direction:column}
.drawer-link{
  display:flex;align-items:center;min-height:48px;padding:0 20px;
  font-size:15px;color:var(--nav-text);border-bottom:1px solid #F0F4F3;
}
.drawer-link.active{color:var(--nav-ink);font-weight:600;box-shadow:inset 3px 0 0 var(--brand);background:#F6FBF9}
.drawer-foot{padding:20px;margin-top:auto}
.drawer-foot .ui-btn{width:100%}
.drawer-search{padding:14px 20px;border-bottom:1px solid #F0F4F3}
.drawer-search input{
  width:100%;height:42px;border-radius:999px;border:1px solid var(--hair);
  padding:0 16px;font-size:14px;color:var(--nav-ink);background:#FBFDFC;
}
.drawer-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,200,160,.16)}

/* ---------- 页头 Banner ---------- */
.page-banner{
  position:relative;overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  min-height:300px;display:flex;align-items:center;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,16,14,.66) 0%,rgba(6,16,14,.82) 100%);
}
.page-banner::after{
  content:"";position:absolute;left:50%;top:-30%;transform:translateX(-50%);
  width:720px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,200,160,.14) 0%,rgba(31,200,160,0) 70%);
  pointer-events:none;
}
.banner-inner{position:relative;z-index:2;width:100%;padding:52px 0}
.banner-grid{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center}
.banner-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:8px;font-size:12px;letter-spacing:.06em;
  background:var(--glass);border:1px solid var(--line);color:var(--brand);margin-bottom:16px;
  backdrop-filter:blur(14px) saturate(120%);
}
.banner-title{
  font-size:clamp(26px,3.6vw,42px);line-height:1.22;font-weight:700;
  max-width:640px;
}
.banner-lead{margin-top:14px;font-size:clamp(15px,1.4vw,18px);color:#C9D8D4;max-width:620px;line-height:1.75}
.breadcrumb-ui{font-size:14px;color:#A7B8B3;display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.breadcrumb-ui a{color:#C9D8D4}
.breadcrumb-ui a:hover{color:var(--brand)}
.breadcrumb-ui .sep{color:rgba(255,255,255,.32)}
.breadcrumb-ui .cur{color:var(--brand)}

/* ---------- 主体双栏 ---------- */
.layout-main{
  display:grid;grid-template-columns:minmax(0,2.05fr) minmax(0,1fr);
  gap:36px;align-items:start;
}
.article-body{padding:clamp(40px,5vw,68px) 0 clamp(40px,5vw,64px)}
.side-col{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}

/* ---------- 通用标题 ---------- */
.sec-head{margin-bottom:28px}
.sec-eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.14em;color:var(--brand);
  margin-bottom:10px;font-weight:600;
}
.sec-title{font-size:clamp(23px,2.6vw,32px);line-height:1.28;font-weight:700}
.sec-desc{margin-top:10px;color:var(--muted);font-size:15px;line-height:1.8;max-width:640px}

/* ---------- 步骤流程条 ---------- */
.steps-flow{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
  margin-top:8px;
}
.step-item{position:relative;padding:22px 18px 20px;border-radius:var(--r-card);
  background:var(--ink-800);border:1px solid var(--line);
  transition:border-color .25s var(--ease),transform .25s var(--ease),background-color .25s var(--ease);
}
.step-item::after{
  content:"";position:absolute;top:36px;right:-18px;width:18px;
  border-top:1px dashed rgba(255,255,255,.22);
}
.step-item:last-child::after{display:none}
.step-num{
  font-family:var(--font-num);font-size:40px;line-height:1;font-weight:700;
  color:transparent;-webkit-text-stroke:1.5px var(--accent);letter-spacing:-.02em;
  margin-bottom:12px;display:block;
}
.step-title{font-size:17px;font-weight:600;margin-bottom:8px;color:var(--text)}
.step-text{font-size:14px;line-height:1.75;color:var(--muted)}
@media (hover:hover){
  .step-item:hover{border-color:rgba(31,200,160,.28);transform:translateY(-4px)}
}

/* ---------- 图文区块 ---------- */
.feature-split{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);
  gap:28px;align-items:center;margin-top:10px;
}
.feature-media{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line)}
.feature-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.feature-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,16,14,0) 45%,rgba(6,16,14,.62) 100%);
}
.media-chip{
  position:absolute;left:14px;bottom:14px;z-index:2;
  padding:5px 12px;border-radius:8px;font-size:12px;color:var(--text);
  background:rgba(255,255,255,.10);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
}
.entry-list{display:flex;flex-direction:column;gap:2px}
.entry-item{
  display:flex;gap:14px;padding:16px 14px;border-radius:12px;
  border-bottom:1px solid var(--line);
  transition:background-color .22s var(--ease);
}
.entry-item:last-child{border-bottom:none}
.entry-num{
  flex:0 0 auto;font-family:var(--font-num);font-size:13px;font-weight:600;
  color:var(--accent);border:1px solid rgba(242,169,59,.42);border-radius:6px;
  width:30px;height:30px;display:flex;align-items:center;justify-content:center;
  margin-top:3px;
}
.entry-title{font-size:16px;font-weight:600;margin-bottom:4px}
.entry-text{font-size:14px;color:var(--muted);line-height:1.75}
@media (hover:hover){
  .entry-item:hover{background:var(--ink-800)}
}

/* ---------- 情形提示卡 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:8px}
.case-card{
  padding:22px 20px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
  transition:border-color .25s var(--ease),transform .25s var(--ease);
}
.case-icon{display:inline-flex;color:var(--brand);margin-bottom:12px}
.case-title{font-size:15px;font-weight:600;margin-bottom:6px}
.case-text{font-size:13.5px;color:var(--muted);line-height:1.75}
@media (hover:hover){
  .case-card:hover{border-color:rgba(31,200,160,.28);transform:translateY(-4px)}
}

/* ---------- 问答 ---------- */
.qa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:8px}
.qa-card{
  padding:22px 20px;border-radius:var(--r-card);
  background:var(--ink-800);border:1px solid var(--line);
  transition:border-color .25s var(--ease);
}
.qa-q{display:flex;gap:10px;font-size:15.5px;font-weight:600;margin-bottom:10px;line-height:1.6}
.qa-q span{color:var(--brand);font-family:var(--font-num);font-weight:700}
.qa-a{font-size:14px;color:var(--muted);line-height:1.8;padding-left:26px}
@media (hover:hover){
  .qa-card:hover{border-color:rgba(31,200,160,.24)}
}

/* ---------- 侧栏 ---------- */
.side-panel{
  border-radius:var(--r-card);background:var(--ink-800);
  border:1px solid var(--line);padding:22px 20px;
}
.side-title{font-size:15px;font-weight:600;margin-bottom:14px;letter-spacing:.02em}
.side-nav{display:flex;flex-direction:column}
.side-link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:44px;padding:8px 12px;border-radius:10px;
  font-size:14.5px;color:#C9D8D4;border-left:3px solid transparent;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.side-link:hover{background:var(--ink-700);color:var(--text)}
.side-link.active{background:rgba(31,200,160,.10);color:var(--brand);border-left-color:var(--brand);font-weight:600}
.side-link svg{opacity:.5;flex:0 0 auto}
.side-link.active svg{opacity:1}

.consult-card{
  border-radius:var(--r-card);padding:24px 20px;
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.consult-card h3{font-size:16px;margin-bottom:8px}
.consult-card p{font-size:13.5px;color:var(--muted);line-height:1.8;margin-bottom:16px}
.consult-card .ui-btn{width:100%}
.consult-note{margin-top:12px;font-size:12px;color:#7F918C;line-height:1.7}

/* ---------- 相关分类 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:8px}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-card);background:var(--ink-800);
  border:1px solid var(--line);height:100%;
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.rel-cover{position:relative;overflow:hidden}
.rel-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease)}
.rel-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,16,14,0) 40%,rgba(6,16,14,.72) 100%);
}
.rel-badge{
  position:absolute;left:12px;top:12px;z-index:2;
  padding:4px 10px;border-radius:8px;font-size:12px;
  background:rgba(255,255,255,.12);border:1px solid var(--line);color:#fff;
  backdrop-filter:blur(14px) saturate(120%);
}
.rel-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.rel-title{font-size:17px;font-weight:600;margin-bottom:8px;line-height:1.5}
.rel-text{font-size:13.5px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-foot{
  margin-top:16px;display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:#8FA29D;border-top:1px solid var(--line);padding-top:12px;
}
.rel-foot svg{transition:transform .25s var(--ease);color:var(--brand)}
@media (hover:hover){
  .rel-card:hover{transform:translateY(-4px);border-color:rgba(31,200,160,.28);box-shadow:0 24px 48px -28px rgba(0,0,0,.9)}
  .rel-card:hover .rel-cover img{transform:scale(1.04)}
  .rel-card:hover .rel-foot svg{transform:translateX(4px)}
}

/* ---------- CTA 条 ---------- */
.cta-band{padding:0 0 clamp(56px,7vw,96px)}
.cta-inner{
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center;
  background:var(--paper);color:var(--paper-text);
  border-radius:20px;padding:clamp(28px,4vw,44px) clamp(24px,3.4vw,44px);
}
.cta-inner h2{color:var(--paper-text);font-size:clamp(21px,2.4vw,28px);line-height:1.3}
.cta-inner p{margin-top:8px;font-size:14.5px;color:#4A5C58;line-height:1.8;max-width:560px}
.cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.cta-inner .ui-btn--link{color:#B4720F;border-color:#B4720F}
.cta-inner .ui-btn--link:hover{color:#8C5709;border-color:#8C5709}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-800);border-top:1px solid var(--line);padding:clamp(44px,5vw,64px) 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:var(--text)}
.footer-brand svg{color:var(--brand)}
.footer-about{margin-top:14px;font-size:13.5px;color:var(--muted);line-height:1.85;max-width:330px}
.footer-kw{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-kw span{
  padding:4px 10px;border-radius:8px;font-size:12px;color:#A9BCB7;
  background:var(--glass);border:1px solid var(--line);
}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px;letter-spacing:.04em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13.5px;color:var(--muted)}
.footer-links a:hover{color:var(--brand)}
.footer-contact{font-size:13.5px;color:var(--muted);line-height:1.85}
.footer-contact strong{display:block;font-size:13px;color:#BDD0CB;font-weight:600;margin-bottom:4px}
.footer-bottom{
  margin-top:clamp(32px,4vw,48px);border-top:1px solid var(--line);
  padding:20px 0 26px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#7F918C;
}
.footer-bottom a{color:#7F918C}

/* ---------- 返回顶部 ---------- */
.back-top{
  position:fixed;right:22px;bottom:22px;width:48px;height:48px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;z-index:1020;cursor:pointer;
  background:rgba(255,255,255,.08);border:1px solid var(--line);color:var(--text);
  backdrop-filter:blur(14px) saturate(120%);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{border-color:rgba(31,200,160,.45);color:var(--brand)}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .3s var(--ease),transform .3s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .search-ui{display:none}
  .nav-item-link{padding:0 9px;font-size:14.5px}
  .nav-item-link::after{left:9px;right:9px}
}
@media (max-width:991.98px){
  .nav-menu{display:none}
  .hamburger{display:flex}
  .header-tools .ui-btn--primary{display:none}
  .header-inner{gap:10px}
  .brand{flex:1 1 auto}
  .banner-grid{grid-template-columns:1fr;gap:18px}
  .breadcrumb-ui{justify-content:flex-start}
  .layout-main{grid-template-columns:1fr;gap:28px}
  .side-col{position:static;top:auto}
  .steps-flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step-item:nth-child(2)::after{display:none}
  .case-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .feature-split{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-inner{grid-template-columns:1fr}
}
@media (max-width:767.98px){
  .page-banner{min-height:220px}
  .banner-inner{padding:36px 0}
  .banner-title{font-size:clamp(23px,6vw,30px)}
  .steps-flow{grid-template-columns:1fr}
  .step-item::after{display:none}
  .qa-grid{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .case-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
  .cta-actions{width:100%;gap:14px}
  .cta-actions .ui-btn--primary{width:100%}
}
@media (max-width:575.98px){
  .container-ui{padding-left:18px;padding-right:18px}
  .brand-text{font-size:15.5px}
  .article-body{padding-top:32px}
  .section{padding:44px 0}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --ink-900:#06100E;
  --ink-800:#0B1A17;
  --ink-700:#10241F;
  --glass:rgba(255,255,255,0.06);
  --line:rgba(255,255,255,0.10);
  --brand:#1FC8A0;
  --brand-deep:#17A886;
  --accent:#F2A93B;
  --text:#E8F2EF;
  --muted:#94A8A3;
  --paper:#F7FAF9;
  --paper-text:#16211F;
  --ok:#38D39F;
  --warn:#E4574C;
  --radius-card:16px;
  --radius-img:12px;
  --shadow-card:0 20px 50px -24px rgba(0,0,0,.72), inset 0 1px 0 rgba(255,255,255,.08);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--ink-900);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease;}
a:hover{color:var(--brand);}
h1,h2,h3,h4{margin:0;letter-spacing:0.01em;font-weight:650;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container-ui{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid #E4EBE8;
  box-shadow:0 2px 12px rgba(6,16,14,.06);
}
.header-inner{display:flex;align-items:center;gap:20px;height:66px;}
.brand{display:flex;align-items:center;gap:10px;color:#0B1A17;font-weight:700;font-size:18px;letter-spacing:.01em;flex-shrink:0;}
.brand svg{color:var(--brand);flex-shrink:0;}
.brand-sub{font-size:12px;font-weight:600;color:#5F706B;margin-left:6px;letter-spacing:.08em;}
.nav-menu{display:flex;align-items:center;gap:2px;margin:0 auto;}
.nav-item-link{
  position:relative;display:inline-block;padding:10px 13px;font-size:15px;color:#35433F;
  border-radius:8px;white-space:nowrap;
}
.nav-item-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  border-radius:2px;background:transparent;transition:background .2s ease;
}
.nav-item-link:hover{color:#0B1A17;}
.nav-item-link:hover::after{background:rgba(31,200,160,.45);}
.nav-item-link.active{color:#0B1A17;font-weight:600;}
.nav-item-link.active::after{background:var(--brand);}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search svg{position:absolute;left:14px;color:#82948F;pointer-events:none;}
.nav-search input{
  width:206px;height:40px;border-radius:999px;border:1px solid #E4EBE8;background:#F7FAF9;
  padding:0 16px 0 40px;font-size:14px;color:#16211F;outline:none;
  transition:border-color .2s,box-shadow .2s,background .2s;
}
.nav-search input::placeholder{color:#8FA19C;}
.nav-search input:focus{border-color:rgba(31,200,160,.7);background:#fff;box-shadow:0 0 0 3px rgba(31,200,160,.16);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid #E4EBE8;background:#fff;border-radius:12px;
  flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#0B1A17;border-radius:2px;transition:transform .2s,opacity .2s;}
.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);}

/* ---------- 按钮 ---------- */
.ui-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:999px;padding:14px 28px;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .25s ease,filter .2s ease,border-color .2s ease,color .2s ease,background .2s ease;
}
.ui-btn-primary{
  background:linear-gradient(135deg,#1FC8A0,#17A886);color:#04120F;
  box-shadow:0 0 0 1px rgba(31,200,160,.45),0 10px 30px -8px rgba(31,200,160,.5);
}
.ui-btn-primary:hover{color:#04120F;filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(31,200,160,.6),0 14px 34px -8px rgba(31,200,160,.55);}
.ui-btn-primary:active{transform:translateY(0);}
.ui-btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line);color:var(--text);}
.ui-btn-ghost:hover{border-color:rgba(31,200,160,.4);color:var(--brand);transform:translateY(-1px);}
.ui-btn-sm{padding:10px 20px;font-size:14px;}
.ui-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-weight:600;
  border-bottom:2px solid currentColor;padding-bottom:3px;font-size:15px;
}
.ui-link:hover{color:#ffc46a;}
.ui-badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;line-height:1;
  padding:7px 12px;border-radius:8px;background:var(--glass);border:1px solid var(--line);
  color:var(--text);letter-spacing:.02em;
}
.ui-badge-solid{background:rgba(31,200,160,.14);border-color:rgba(31,200,160,.4);color:#7FEBD3;}

/* ---------- 移动抽屉 ---------- */
.ui-drawer{background:#fff;color:#16211F;width:min(340px,86vw);}
.ui-drawer .offcanvas-header{border-bottom:1px solid #E4EBE8;padding:16px 20px;}
.ui-drawer .offcanvas-body{padding:16px 20px 28px;display:flex;flex-direction:column;gap:18px;}
.brand-dark{color:#0B1A17;font-weight:700;font-size:17px;display:flex;align-items:center;gap:9px;}
.brand-dark svg{color:var(--brand);}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 12px;font-size:15px;color:#35433F;
  border-bottom:1px solid #EEF3F1;border-radius:8px;
}
.drawer-nav a:hover{background:#F2F8F6;color:#0B1A17;}
.drawer-nav a.active{color:#0B1A17;font-weight:600;background:#F2F8F6;box-shadow:inset 3px 0 0 var(--brand);}
.drawer-cta{width:100%;}

/* ---------- 页头横幅 ---------- */
.page-banner{
  position:relative;overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center 40%;
  padding:clamp(46px,6vw,76px) 0 clamp(40px,5vw,60px);
}
.page-banner::before{content:"";position:absolute;inset:0;background:rgba(6,16,14,.80);}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(600px 260px at 22% 0%,rgba(31,200,160,.16),transparent 70%);
}
.page-banner .container-ui{position:relative;z-index:2;}
.banner-inner{max-width:880px;}
.page-title{
  font-size:clamp(26px,3.6vw,40px);line-height:1.22;font-weight:700;margin:18px 0 16px;
  color:#fff;letter-spacing:.01em;overflow-wrap:anywhere;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted);}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:rgba(148,168,163,.7);}
.post-meta strong{color:var(--text);font-weight:600;}

/* ---------- 面包屑 ---------- */
.crumbs{padding:22px 0 0;}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.crumbs li{display:flex;align-items:center;gap:8px;min-width:0;}
.crumbs li+li::before{content:"/";color:rgba(148,168,163,.55);}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--brand);}
.crumbs li span{color:rgba(232,242,239,.82);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 主体布局 ---------- */
.article-wrap{padding:clamp(28px,4vw,44px) 0 clamp(56px,7vw,88px);}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:36px;align-items:start;}
.main-col{min-width:0;}
.side-col{display:flex;flex-direction:column;gap:20px;}

/* 纸面正文 */
.article-paper{
  background:var(--paper);color:var(--paper-text);border-radius:20px;
  padding:clamp(24px,4vw,48px);box-shadow:0 30px 70px -40px rgba(0,0,0,.9);
  font-size:16px;line-height:1.9;overflow-wrap:anywhere;
}
.article-body{max-width:780px;margin:0 auto;}
.article-body>*:first-child{margin-top:0;}
.article-body p{margin:0 0 1.1em;font-size:16px;line-height:1.9;color:#22302D;}
.article-body h2{
  font-size:clamp(21px,2.4vw,27px);line-height:1.32;font-weight:650;color:#0F1C19;
  margin:34px 0 16px;padding-left:12px;border-left:4px solid var(--brand);scroll-margin-top:88px;
}
.article-body h3{
  font-size:19px;line-height:1.45;font-weight:650;color:#14211E;
  margin:26px 0 12px;scroll-margin-top:88px;
}
.article-body h4{font-size:17px;margin:20px 0 10px;color:#14211E;}
.article-body strong{color:#0E1A17;font-weight:700;}
.article-body a{color:#0F8F73;border-bottom:1px solid rgba(15,143,115,.35);}
.article-body a:hover{color:#0B6E58;border-bottom-color:#0B6E58;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:2px;}
.article-body ul>li{position:relative;padding-left:20px;margin-bottom:9px;font-size:15.5px;line-height:1.85;color:#22302D;}
.article-body ul>li::before{
  content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:1px;
  background:var(--brand-deep);
}
.article-body ol{list-style:none;counter-reset:olc;}
.article-body ol>li{counter-increment:olc;position:relative;padding-left:30px;margin-bottom:9px;font-size:15.5px;line-height:1.85;color:#22302D;}
.article-body ol>li::before{
  content:counter(olc,decimal-leading-zero);position:absolute;left:0;top:.12em;
  font-family:var(--font-num);font-size:13px;font-weight:700;color:#0F8F73;letter-spacing:-.01em;
}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;background:rgba(6,16,14,.05);
  border-left:3px solid var(--accent);border-radius:0 12px 12px 0;color:#33423E;
  font-size:15.5px;line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:22px auto;width:100%;height:auto;}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13px;color:#68796F;text-align:center;margin-top:10px;}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px;
  border:1px solid #DDE6E2;border-radius:12px;overflow:hidden;
}
.article-body thead th{
  background:var(--ink-800);color:#E8F2EF;font-weight:600;text-align:left;
  padding:12px 14px;font-size:13.5px;white-space:nowrap;
}
.article-body td{padding:12px 14px;border-top:1px solid #E3EBE7;color:#26332F;vertical-align:top;}
.article-body tbody tr:nth-child(even){background:#F1F7F5;}
.article-body hr{border:0;border-top:1px solid #DDE6E2;margin:28px 0;}

/* 文末标签 */
.post-tags{display:flex;flex-wrap:wrap;gap:8px;margin:32px 0 0;padding-top:22px;border-top:1px solid #E1EAE6;}
.post-tags span{
  display:inline-flex;align-items:center;font-size:12px;line-height:1;padding:7px 12px;
  border-radius:999px;background:#EAF3F0;color:#3C4E48;border:1px solid #DCE8E4;
}

/* 上下篇 */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px;}
.post-nav-item{
  display:block;padding:16px 18px;border-radius:14px;background:#fff;border:1px solid #E1EAE6;
  transition:border-color .2s,transform .2s;
}
.post-nav-item:hover{border-color:rgba(31,200,160,.55);transform:translateY(-2px);}
.post-nav-item.is-disabled{opacity:.62;pointer-events:none;}
.post-nav-label{display:block;font-size:12px;color:#6E817B;margin-bottom:6px;letter-spacing:.04em;}
.post-nav-title{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  font-size:14.5px;line-height:1.6;color:#16211F;font-weight:600;
}
.post-nav-item.is-disabled .post-nav-title{font-weight:400;color:#8C9B96;}

/* 目录 */
.toc-card{
  background:var(--ink-800);border:1px solid var(--line);border-radius:16px;padding:20px;
  box-shadow:var(--shadow-card);
}
.toc-title{font-size:14px;font-weight:650;color:var(--text);letter-spacing:.04em;margin-bottom:14px;}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:52vh;overflow-y:auto;}
.toc-list a{
  display:block;font-size:13px;line-height:1.55;color:var(--muted);padding:7px 10px;
  border-left:2px solid transparent;border-radius:0 6px 6px 0;
}
.toc-list a:hover{color:var(--text);background:rgba(255,255,255,.04);}
.toc-list a.active{color:var(--brand);border-left-color:var(--brand);background:rgba(31,200,160,.08);}
.toc-list a.is-sub{padding-left:22px;font-size:12.5px;}

.toc-mobile{display:none;margin-bottom:20px;}
.toc-mobile details{
  background:var(--ink-800);border:1px solid var(--line);border-radius:14px;padding:0 18px;
}
.toc-mobile summary{
  list-style:none;cursor:pointer;padding:15px 0;font-size:14px;font-weight:600;color:var(--text);
  display:flex;align-items:center;justify-content:space-between;
}
.toc-mobile summary::-webkit-details-marker{display:none;}
.toc-mobile summary::after{content:"+";font-size:18px;color:var(--brand);line-height:1;}
.toc-mobile details[open] summary::after{content:"–";}
.toc-mobile .toc-list{padding-bottom:14px;}

/* 侧栏卡片 */
.side-card{
  background:var(--ink-800);border:1px solid var(--line);border-radius:16px;padding:20px;
  box-shadow:var(--shadow-card);
}
.side-card-title{font-size:14px;font-weight:650;color:var(--text);letter-spacing:.04em;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card-title::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--brand);}
.side-card p{font-size:13.5px;line-height:1.8;color:var(--muted);}
.side-author{display:flex;align-items:center;gap:12px;margin-bottom:12px;}
.side-avatar{
  width:44px;height:44px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(31,200,160,.28),rgba(31,200,160,.08));
  border:1px solid rgba(31,200,160,.4);color:#8FF0DA;font-weight:700;font-size:15px;
}
.side-author-name{font-size:14.5px;font-weight:600;color:var(--text);line-height:1.4;}
.side-author-desc{font-size:12px;color:var(--muted);}
.side-card .ui-btn{width:100%;margin-top:14px;}
.hot-list{display:flex;flex-direction:column;gap:12px;}
.hot-list a{display:flex;gap:12px;align-items:flex-start;}
.hot-num{
  font-family:var(--font-num);font-size:20px;line-height:1;font-weight:700;
  color:rgba(255,255,255,.16);letter-spacing:-.02em;flex-shrink:0;width:26px;padding-top:2px;
}
.hot-list a:hover .hot-num{color:rgba(31,200,160,.75);}
.hot-text{
  font-size:13.5px;line-height:1.6;color:#C8D8D3;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.hot-list a:hover .hot-text{color:var(--brand);}

/* 空态 */
.empty-state{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;color:#5C6F69;
}
.empty-state svg{color:#9BB0AA;}
.empty-state p{font-size:15px;color:#4E625C;}
.empty-state .ui-btn{border-color:#D8E4E0;color:#16211F;background:#fff;}
.empty-state .ui-btn:hover{border-color:rgba(31,200,160,.6);color:#0F8F73;}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 clamp(48px,6vw,72px);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;flex-wrap:wrap;}
.section-title{font-size:clamp(22px,2.6vw,30px);line-height:1.3;color:var(--text);font-weight:650;}
.section-sub{font-size:14px;color:var(--muted);margin-top:8px;line-height:1.7;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.ui-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--ink-800);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.ui-card:hover{transform:translateY(-4px);border-color:rgba(31,200,160,.28);}
.card-cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--ink-700);}
.card-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s ease;}
.ui-card:hover .card-cover img{transform:scale(1.04);}
.card-cover .ui-badge{position:absolute;left:12px;top:12px;background:rgba(6,16,14,.66);backdrop-filter:blur(10px);}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{
  font-size:16.5px;line-height:1.5;font-weight:600;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-desc{
  font-size:13.5px;line-height:1.7;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted);
}
.card-arrow{display:inline-flex;align-items:center;gap:4px;color:#8FF0DA;transition:transform .2s;}
.ui-card:hover .card-arrow{transform:translateX(4px);}

/* ---------- CTA 条 ---------- */
.cta-band{padding:0 0 clamp(56px,7vw,88px);}
.cta-inner{
  background:var(--paper);color:var(--paper-text);border-radius:20px;
  padding:clamp(26px,4vw,44px);display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;box-shadow:0 30px 70px -40px rgba(0,0,0,.9);
}
.cta-inner h2{font-size:clamp(21px,2.4vw,28px);line-height:1.35;color:#0F1C19;}
.cta-inner p{margin-top:10px;font-size:14.5px;line-height:1.75;color:#4E615B;max-width:560px;}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.cta-link{color:#0F8F73;font-weight:600;font-size:14.5px;border-bottom:2px solid currentColor;padding-bottom:3px;}
.cta-link:hover{color:#0B6E58;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-800);border-top:1px solid var(--line);padding:clamp(40px,5vw,60px) 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand{display:inline-flex;align-items:center;gap:9px;font-size:17px;font-weight:700;color:var(--text);}
.footer-brand svg{color:var(--brand);}
.footer-about{margin-top:14px;font-size:13.5px;line-height:1.85;color:var(--muted);max-width:320px;}
.footer-kw{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.footer-kw span{
  font-size:12px;line-height:1;padding:6px 10px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:#A9BEb8;
}
.footer-title{font-size:14px;font-weight:650;color:var(--text);margin-bottom:14px;letter-spacing:.04em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:13.5px;color:var(--muted);}
.footer-links a:hover{color:var(--brand);}
.footer-contact{font-size:13px;line-height:1.85;color:var(--muted);}
.footer-contact strong{display:block;font-size:13px;color:var(--text);font-weight:600;}
.footer-bottom{
  margin-top:36px;border-top:1px solid var(--line);padding:18px 0;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}

/* 返回顶部 */
.to-top{
  position:fixed;right:22px;bottom:26px;width:48px;height:48px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(16,36,31,.86);border:1px solid var(--line);color:var(--text);
  backdrop-filter:blur(12px);box-shadow:0 14px 34px -18px rgba(0,0,0,.9);
  opacity:0;visibility:hidden;transform:translateY(10px);transition:all .25s ease;z-index:1040;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{color:var(--brand);border-color:rgba(31,200,160,.5);}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:28px;}
  .toc-card.desk-only{display:none;}
  .toc-mobile{display:block;}
  .side-col{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:991.98px){
  .nav-menu,.nav-search{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{height:64px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767.98px){
  .page-title{-webkit-line-clamp:4;}
  .crumbs li span{max-width:200px;}
  .post-nav{grid-template-columns:1fr;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;border-radius:10px;}
  .article-body thead th{white-space:nowrap;}
  .side-col{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  .container-ui{padding:0 18px;}
  .card-grid{grid-template-columns:1fr;}
  .article-paper{padding:22px 18px;border-radius:16px;}
  .footer-grid{grid-template-columns:1fr;}
  .brand{font-size:16px;}
  .brand-sub{display:none;}
  .ui-btn{padding:13px 22px;}
  .to-top{right:16px;bottom:18px;width:44px;height:44px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important;}
}

/* roulang page: category3 */
:root{
  --ink-900:#06100E;
  --ink-800:#0B1A17;
  --ink-700:#10241F;
  --glass:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.10);
  --brand:#1FC8A0;
  --brand-deep:#17A886;
  --accent:#F2A93B;
  --text:#E8F2EF;
  --muted:#94A8A3;
  --paper:#F7FAF9;
  --paper-text:#16211F;
  --ok:#38D39F;
  --warn:#E4574C;
  --radius-card:16px;
  --radius-img:12px;
  --shadow-card:0 20px 50px -24px rgba(0,0,0,.72), inset 0 1px 0 rgba(255,255,255,.08);
  --container:1200px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease}
a:hover{color:var(--brand)}
h1,h2,h3,h4{margin:0;letter-spacing:.01em;line-height:1.28}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container-ui{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:clamp(48px,6vw,84px) 0}
.section-tight{padding:clamp(32px,4vw,52px) 0}
.section-alt{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ============ 顶部导航（全站统一） ============ */
.site-header{position:sticky;top:0;z-index:1030;background:#FFFFFF;border-bottom:1px solid #E4EBE8;box-shadow:0 2px 12px rgba(6,16,14,.06)}
.header-inner{max-width:var(--container);margin:0 auto;padding:0 24px;height:66px;display:flex;align-items:center;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;color:#0B1A17;font-weight:700;font-size:18px;white-space:nowrap;letter-spacing:.01em}
.brand svg{color:var(--brand-deep);flex:0 0 auto}
.brand:hover{color:#0B1A17}
.brand-text b{font-weight:700}
.nav-menu{display:flex;align-items:center;gap:20px;margin-left:6px;height:66px}
.nav-item-link{position:relative;display:flex;align-items:center;height:66px;font-size:15px;color:#35433F;white-space:nowrap;transition:color .2s ease}
.nav-item-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:transparent;transition:background .2s ease}
.nav-item-link:hover{color:#0B1A17}
.nav-item-link:hover::after{background:rgba(31,200,160,.45)}
.nav-item-link.active{color:#0B1A17;font-weight:600}
.nav-item-link.active::after{background:var(--brand)}
.header-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;border:1px solid #E4EBE8;border-radius:999px;background:#F7FAF9;transition:border-color .2s ease,box-shadow .2s ease}
.search-box:focus-within{border-color:rgba(31,200,160,.65);box-shadow:0 0 0 3px rgba(31,200,160,.14)}
.search-box svg{color:#7E918C;flex:0 0 auto}
.search-box input{border:0;background:transparent;outline:none;font-size:14px;color:#16211F;width:148px}
.search-box input::placeholder{color:#93A5A0}
.header-cta{padding:10px 20px;font-size:14px}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid #E4EBE8;border-radius:12px;background:#fff;padding:0;cursor:pointer;position:relative;transition:border-color .2s ease,background .2s ease}
.menu-toggle:hover{border-color:rgba(31,200,160,.5)}
.menu-toggle span{position:absolute;left:12px;right:12px;height:2px;background:#0B1A17;border-radius:2px;transition:transform .25s ease,opacity .2s ease}
.menu-toggle span:nth-child(1){top:15px}
.menu-toggle span:nth-child(2){top:21px}
.menu-toggle span:nth-child(3){top:27px}
.menu-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle.is-open span:nth-child(2){opacity:0}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 移动抽屉 */
.drawer{background:#FFFFFF;color:#16211F;width:min(360px,88vw)}
.drawer .offcanvas-header{padding:16px 20px;border-bottom:1px solid #E4EBE8;align-items:center}
.drawer .brand{font-size:17px}
.drawer-close{width:40px;height:40px;border:1px solid #E4EBE8;border-radius:10px;background:#fff;color:#0B1A17;font-size:22px;line-height:1;cursor:pointer}
.drawer-close:hover{border-color:rgba(31,200,160,.55);color:var(--brand-deep)}
.drawer .offcanvas-body{padding:18px 20px 28px;display:flex;flex-direction:column;gap:18px}
.search-box-drawer{width:100%}
.search-box-drawer input{width:100%}
.drawer-nav{display:flex;flex-direction:column}
.drawer-link{display:flex;align-items:center;min-height:48px;font-size:15px;color:#2A3A36;border-bottom:1px solid #EDF2F0}
.drawer-link:hover{color:var(--brand-deep)}
.drawer-link.active{color:var(--brand-deep);font-weight:600}
.drawer-cta{width:100%;min-height:48px}

/* ============ 按钮 / 标签 / 卡片 ============ */
.ui-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;line-height:1.2;padding:14px 28px;border-radius:999px;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease,filter .2s ease}
.ui-btn:active{transform:translateY(0) scale(.995)}
.ui-btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#04120F;box-shadow:0 0 0 1px rgba(31,200,160,.45),0 10px 30px -8px rgba(31,200,160,.5)}
.ui-btn-primary:hover{color:#04120F;filter:brightness(1.06);box-shadow:0 0 0 1px rgba(31,200,160,.6),0 14px 34px -8px rgba(31,200,160,.62)}
.ui-btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.ui-btn-ghost:hover{border-color:rgba(31,200,160,.45);color:var(--brand)}
.ui-btn-dark{background:#0B1A17;color:#F7FAF9}
.ui-btn-dark:hover{background:#122A25;color:#F7FAF9}
.ui-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--accent);border-bottom:2px solid var(--accent);padding-bottom:2px}
.ui-link:hover{color:#FFC46A;border-color:#FFC46A}
.ui-badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.02em;color:var(--text);background:var(--glass);border:1px solid var(--line);border-radius:999px;padding:5px 12px;backdrop-filter:blur(10px) saturate(120%)}
.ui-tag{display:inline-flex;align-items:center;font-size:12px;color:var(--muted);background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:8px;padding:3px 10px}
.ui-card{background:var(--ink-800);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);transition:transform .25s ease,border-color .25s ease}
.ui-card:hover{border-color:rgba(31,200,160,.28)}
.ui-glass{background:var(--ink-700);background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-card);backdrop-filter:blur(14px) saturate(120%)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-num);font-size:12px;letter-spacing:.14em;color:var(--brand);text-transform:uppercase}
.eyebrow::before{content:"";width:22px;height:1px;background:rgba(31,200,160,.6)}
.section-title{font-size:clamp(23px,2.6vw,32px);font-weight:650;line-height:1.28}
.section-sub{color:var(--muted);font-size:15px;margin-top:10px;max-width:640px}

/* ============ 页头 Banner ============ */
.page-banner{position:relative;overflow:hidden;background:var(--ink-800);border-bottom:1px solid var(--line)}
.page-banner .banner-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.9}
.page-banner .banner-mask{position:absolute;inset:0;background:linear-gradient(100deg,rgba(6,16,14,.92) 0%,rgba(6,16,14,.78) 55%,rgba(6,16,14,.62) 100%)}
.page-banner .banner-glow{position:absolute;inset:0;background:radial-gradient(600px 240px at 22% 0%,rgba(31,200,160,.16),transparent 70%);pointer-events:none}
.banner-inner{position:relative;z-index:2;display:flex;align-items:flex-end;justify-content:space-between;gap:32px;padding-top:clamp(48px,7vw,84px);padding-bottom:clamp(40px,6vw,60px)}
.banner-text{max-width:660px}
.banner-title{font-size:clamp(26px,3.4vw,42px);font-weight:700;line-height:1.2;margin-top:16px}
.banner-lead{color:var(--muted);font-size:16px;margin-top:14px;max-width:560px}
.breadcrumb-nav{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);flex-wrap:wrap}
.breadcrumb-nav a{color:var(--muted)}
.breadcrumb-nav a:hover{color:var(--brand)}
.breadcrumb-nav .sep{color:rgba(255,255,255,.28)}
.breadcrumb-nav .current{color:var(--text)}

/* ============ 主体布局 ============ */
.layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:34px;align-items:start}
.content-col{min-width:0}
.aside-col{min-width:0}
@media (min-width:992px){
  .aside-sticky{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
}

/* 版本概览数字条 */
.kpi-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:34px}
.kpi{padding:22px 18px;border-right:1px solid var(--line)}
.kpi:last-child{border-right:0}
.kpi-num{display:block;font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--brand);letter-spacing:-.01em;line-height:1.2}
.kpi-label{display:block;font-size:12px;color:var(--muted);margin-top:6px;letter-spacing:.02em}

/* 时间轴 */
.timeline{position:relative;padding-left:30px;margin-top:26px}
.timeline::before{content:"";position:absolute;left:9px;top:10px;bottom:10px;width:2px;background:var(--line)}
.tl-item{position:relative;padding-bottom:30px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-25px;top:12px;width:10px;height:10px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(31,200,160,.14)}
.tl-date{display:inline-flex;align-items:center;font-family:var(--font-num);font-size:12px;letter-spacing:.02em;color:var(--accent);border:1px solid rgba(242,169,59,.4);background:rgba(242,169,59,.1);border-radius:999px;padding:2px 10px;margin-bottom:8px}
.tl-title{font-size:20px;font-weight:600;line-height:1.4;color:var(--text)}
.tl-desc{color:var(--muted);font-size:15px;margin-top:8px;line-height:1.85}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}

/* 编号列表 */
.num-list{margin-top:24px;border-top:1px solid var(--line)}
.num-item{display:flex;gap:18px;padding:20px 14px;border-bottom:1px solid var(--line);transition:background .25s ease}
.num-item:hover{background:var(--ink-800)}
.num-index{font-family:var(--font-num);font-size:34px;font-weight:700;line-height:1;color:transparent;-webkit-text-stroke:1.4px rgba(242,169,59,.85);flex:0 0 auto;min-width:52px}
.num-title{font-size:16px;font-weight:600;color:var(--text)}
.num-desc{font-size:14px;color:var(--muted);margin-top:4px}

/* 内容面板 */
.panel{padding:clamp(20px,3vw,30px);border-radius:var(--radius-card)}
.panel + .panel{margin-top:22px}
.panel-title{font-size:20px;font-weight:600;display:flex;align-items:center;gap:10px}
.panel-title .bar{width:4px;height:18px;border-radius:2px;background:var(--brand);display:inline-block}
.panel-text{color:var(--muted);font-size:15px;margin-top:12px}
.note-list{margin-top:16px;display:flex;flex-direction:column;gap:12px}
.note-row{display:flex;gap:12px;font-size:15px;color:var(--muted)}
.note-row .dot{flex:0 0 auto;width:8px;height:8px;border-radius:2px;background:var(--brand);margin-top:10px}

/* 侧栏 */
.aside-card{padding:22px;border-radius:var(--radius-card)}
.aside-title{font-size:16px;font-weight:600;letter-spacing:.02em}
.aside-nav{margin-top:14px;display:flex;flex-direction:column}
.aside-link{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:46px;padding:8px 0 8px 12px;border-left:2px solid transparent;font-size:14px;color:var(--muted);border-bottom:1px solid var(--line);transition:color .2s ease,border-color .2s ease,background .2s ease}
.aside-link:last-child{border-bottom:0}
.aside-link:hover{color:var(--text);border-left-color:rgba(31,200,160,.45)}
.aside-link.active{color:var(--brand);border-left-color:var(--brand);font-weight:600}
.aside-link .arrow{font-family:var(--font-num);font-size:13px;opacity:.6}
.consult-card{padding:22px;border-radius:var(--radius-card);background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(14px) saturate(120%)}
.consult-card h3{font-size:17px;font-weight:600}
.consult-card p{font-size:14px;color:var(--muted);margin-top:10px}
.consult-card .ui-btn{width:100%;margin-top:16px}
.consult-note{font-size:12px;color:rgba(148,168,163,.85);margin-top:12px;line-height:1.7}

/* 相关分类卡片 */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:32px}
.rel-card{display:flex;flex-direction:column;overflow:hidden;border-radius:var(--radius-card);background:var(--ink-800);border:1px solid var(--line);box-shadow:var(--shadow-card);transition:transform .25s ease,border-color .25s ease}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(31,200,160,.28);color:var(--text)}
.rel-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--ink-700)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.03)}
.rel-badge{position:absolute;left:12px;top:12px}
.rel-body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
.rel-title{font-size:17px;font-weight:600;line-height:1.45}
.rel-desc{font-size:14px;color:var(--muted);line-height:1.7}
.rel-foot{margin-top:auto;padding-top:14px;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted);border-top:1px solid var(--line)}
.rel-arrow{font-family:var(--font-num);transition:transform .25s ease}
.rel-card:hover .rel-arrow{transform:translateX(4px);color:var(--brand)}

/* CTA 条 */
.cta-band{background:var(--paper);color:var(--paper-text);border-radius:20px;padding:clamp(26px,4vw,44px);display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;color:var(--paper-text);line-height:1.3}
.cta-band p{color:#4B5C58;font-size:15px;margin-top:10px;max-width:520px}
.cta-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.cta-actions .ui-link{color:#0E7A64;border-color:#0E7A64}
.cta-actions .ui-link:hover{color:#0A5C4C;border-color:#0A5C4C}

/* 页脚 */
.site-footer{background:var(--ink-800);border-top:1px solid var(--line);padding:clamp(40px,6vw,64px) 0 0;margin-top:clamp(40px,6vw,64px)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--text)}
.footer-brand svg{color:var(--brand)}
.footer-about{font-size:14px;color:var(--muted);margin-top:14px;line-height:1.85;max-width:320px}
.footer-kw{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-kw span{font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:3px 10px}
.footer-title{font-size:14px;font-weight:600;color:var(--text);letter-spacing:.04em}
.footer-links{display:flex;flex-direction:column;gap:10px;margin-top:16px}
.footer-links a{font-size:14px;color:var(--muted)}
.footer-links a:hover{color:var(--brand)}
.footer-contact{font-size:13px;color:var(--muted);margin-top:16px;line-height:1.8;display:flex;flex-direction:column;gap:4px}
.footer-contact strong{display:block;font-size:13px;color:var(--text);font-weight:600;margin-bottom:2px}
.footer-bottom{margin-top:38px;padding:18px 0 22px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:14px;font-size:13px;color:var(--muted);flex-wrap:wrap}

/* 返回顶部 */
#backTop{position:fixed;right:20px;bottom:24px;width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--glass);border:1px solid var(--line);color:var(--text);backdrop-filter:blur(10px);opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .25s ease,transform .25s ease,visibility .25s ease,border-color .25s ease;z-index:1040;cursor:pointer}
#backTop.show{opacity:1;visibility:visible;transform:translateY(0)}
#backTop:hover{border-color:rgba(31,200,160,.5);color:var(--brand)}

/* 入场动画 */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .3s cubic-bezier(.22,.61,.36,1),transform .3s cubic-bezier(.22,.61,.36,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none!important;transition:none!important}
}

/* ============ 响应式 ============ */
@media (hover:hover){
  .ui-btn-primary:hover{transform:translateY(-1px)}
  .ui-btn-ghost:hover{transform:translateY(-1px)}
}
@media (max-width:1199.98px){
  .header-inner{gap:14px}
  .nav-menu{gap:16px}
  .search-box input{width:120px}
}
@media (max-width:991.98px){
  .nav-menu{display:none}
  .header-right .search-box{display:none}
  .header-right .header-cta{display:none}
  .menu-toggle{display:block}
  .layout{grid-template-columns:1fr;gap:28px}
  .banner-inner{flex-direction:column;align-items:flex-start;gap:18px}
  .breadcrumb-nav{order:2}
  .kpi-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .kpi:nth-child(2){border-right:0}
  .kpi:nth-child(1),.kpi:nth-child(2){border-bottom:1px solid var(--line)}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767.98px){
  .container-ui{padding:0 18px}
  .header-inner{padding:0 18px;height:62px}
  .brand{font-size:16px}
  .page-banner .banner-bg{background-position:center left}
  .banner-title{font-size:clamp(24px,6.4vw,30px)}
  .banner-lead{font-size:15px}
  .rel-grid{grid-template-columns:1fr}
  .num-item{gap:12px;padding:16px 8px}
  .num-index{font-size:28px;min-width:42px}
  .cta-band{flex-direction:column;align-items:flex-start}
  .timeline{padding-left:24px}
  .timeline::before{left:5px}
  .tl-item::before{left:-23px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:575.98px){
  .kpi-strip{grid-template-columns:1fr}
  .kpi{border-right:0;border-bottom:1px solid var(--line);padding:18px 4px}
  .kpi:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr}
  .ui-btn{width:100%}
  .header-cta,.drawer-cta{width:auto}
  .drawer-cta{width:100%}
  .cta-actions{width:100%}
  .cta-actions .ui-link{width:auto}
}

/* roulang page: category2 */
:root{
  --ink-900:#06100E;
  --ink-800:#0B1A17;
  --ink-700:#10241F;
  --glass:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.10);
  --brand:#1FC8A0;
  --brand-deep:#17A886;
  --accent:#F2A93B;
  --text:#E8F2EF;
  --muted:#94A8A3;
  --paper:#F7FAF9;
  --paper-text:#16211F;
  --ok:#38D39F;
  --warn:#E4574C;
  --radius-card:16px;
  --radius-img:12px;
  --radius-input:12px;
  --shadow-card:0 20px 50px -24px rgba(0,0,0,.72), inset 0 1px 0 rgba(255,255,255,.08);
  --block-space:clamp(56px,7vw,96px);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:inherit;text-decoration:none}
a:hover{color:var(--brand)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:.01em}
h1{font-size:clamp(28px,3.6vw,42px);line-height:1.22;font-weight:700}
h2{font-size:clamp(23px,2.6vw,32px);line-height:1.32;font-weight:650}
h3{font-size:20px;line-height:1.4;font-weight:600}
p{margin:0 0 14px}
ul,ol{margin:0 0 14px;padding-left:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container-ui{width:100%;max-width:1200px;margin-inline:auto;padding-inline:24px}

/* ---------- buttons ---------- */
.ui-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;
  padding:13px 26px;cursor:pointer;
  transition:transform .22s cubic-bezier(.22,.61,.36,1),box-shadow .22s,background .22s,color .22s,border-color .22s,filter .22s;
}
.ui-btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#04120F;
  box-shadow:0 0 0 1px rgba(31,200,160,.45),0 10px 30px -8px rgba(31,200,160,.5);
}
.ui-btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.ui-btn-ghost:hover{border-color:rgba(31,200,160,.3);color:var(--text)}
.ui-btn-sm{padding:10px 20px;font-size:14px}
.ui-btn-block{width:100%}
@media (hover:hover){
  .ui-btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);color:#04120F}
  .ui-btn-ghost:hover{transform:translateY(-1px)}
}
.ui-btn:active{transform:translateY(0)}
.ui-link{
  color:var(--accent);font-weight:600;
  text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px;
  transition:color .2s;
}
.ui-link:hover{color:#FFC46A}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#FFFFFF;
  border-bottom:1px solid #E4EBE8;
  box-shadow:0 2px 12px rgba(6,16,14,.06);
}
.header-inner{display:flex;align-items:center;gap:20px;height:66px}
.brand{display:inline-flex;align-items:center;gap:10px;color:#0B1A17;font-weight:700;font-size:18px;white-space:nowrap}
.brand svg{color:var(--brand);flex:0 0 auto}
.brand-sub{font-size:12px;font-weight:600;color:#5C6C67;letter-spacing:.14em;margin-left:2px}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-item-link{
  position:relative;font-size:15px;color:#35433F;
  padding:9px 12px;border-radius:8px;white-space:nowrap;
  transition:color .2s,background .2s;
}
.nav-item-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;
  background:transparent;transition:background .2s;
}
.nav-item-link:hover{color:#0B1A17;background:#F2F7F5}
.nav-item-link:hover::after{background:rgba(31,200,160,.45)}
.nav-item-link.active{color:#0B1A17;font-weight:600}
.nav-item-link.active::after{background:var(--brand)}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  border:1px solid #E4EBE8;border-radius:999px;background:#F7FAF9;color:#6C7C77;
  transition:border-color .2s,box-shadow .2s;
}
.nav-search:focus-within{border-color:rgba(31,200,160,.65);box-shadow:0 0 0 3px rgba(31,200,160,.15)}
.nav-search input{border:0;background:transparent;outline:none;font-size:14px;width:148px;color:#16211F}
.nav-search input::placeholder{color:#8A9A95}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid #E4EBE8;border-radius:12px;
  background:#FFFFFF;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:20px;height:2px;background:#16211F;position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:#16211F;border-radius:2px;
  transition:transform .2s,opacity .2s;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
@media (max-width:1199px){.nav-search{display:none}}
@media (max-width:991px){
  .nav-menu{display:none}
  .header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{gap:12px}
}
@media (max-width:420px){.brand{font-size:16px}.brand-sub{display:none}}

/* ---------- offcanvas drawer ---------- */
.ui-drawer{background:#FFFFFF;color:#16211F;width:min(86vw,344px);border-left:1px solid #E4EBE8}
.ui-drawer .offcanvas-header{border-bottom:1px solid #E4EBE8;padding:18px 20px}
.ui-drawer .drawer-brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;color:#0B1A17}
.ui-drawer .drawer-brand svg{color:var(--brand)}
.ui-drawer .offcanvas-body{padding:12px 14px 24px;display:flex;flex-direction:column;gap:2px}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 12px;border-radius:10px;
  font-size:15px;color:#35433F;border-bottom:1px solid #EEF3F1;
}
.drawer-link:last-of-type{border-bottom:0}
.drawer-link.active{color:#0B1A17;font-weight:600;background:#F1F8F6;box-shadow:inset 3px 0 0 var(--brand)}
.drawer-link:hover{background:#F7FAF9;color:#0B1A17}
.drawer-foot{margin-top:18px;padding-top:18px;border-top:1px solid #E4EBE8;display:grid;gap:10px}
.drawer-search{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;border:1px solid #E4EBE8;border-radius:999px;background:#F7FAF9;color:#6C7C77;
}
.drawer-search input{border:0;background:transparent;outline:none;font-size:14px;width:100%;color:#16211F}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(rgba(6,16,14,.80),rgba(6,16,14,.80)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  padding:clamp(44px,5vw,68px) 0;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(60% 80% at 50% 0%,rgba(31,200,160,.12),transparent 70%);
}
.hero-flex{position:relative;z-index:1;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.hero-eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.16em;color:var(--brand);
  border:1px solid rgba(31,200,160,.35);border-radius:8px;padding:4px 10px;margin:0 0 14px;background:rgba(31,200,160,.08);
}
.hero-copy{max-width:720px}
.hero-copy h1{margin-bottom:12px}
.hero-lead{margin:0;font-size:clamp(15px,1.5vw,18px);color:#C7D8D3;line-height:1.7}
.breadcrumb-ui{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(232,242,239,.72)}
.breadcrumb-ui a{color:rgba(232,242,239,.9)}
.breadcrumb-ui a:hover{color:var(--brand)}
.breadcrumb-ui span[aria-hidden]{color:rgba(232,242,239,.35)}
@media (max-width:575px){
  .page-hero{min-height:200px;padding:36px 0}
  .breadcrumb-ui{font-size:13px}
}

/* ---------- layout ---------- */
main{padding-block:clamp(40px,5vw,64px) 0}
.content-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:32px;align-items:start}
@media (max-width:991px){.content-grid{grid-template-columns:minmax(0,1fr);gap:28px}}
.main-col{display:grid;gap:clamp(28px,3.4vw,44px);min-width:0}
.side-col{min-width:0}
.side-sticky{display:grid;gap:20px}
@media (min-width:992px){.side-sticky{position:sticky;top:88px}}

/* ---------- cards ---------- */
.ui-card{
  background:var(--ink-800);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  box-shadow:var(--shadow-card);
  transition:border-color .24s,transform .24s,box-shadow .24s;
}
.ui-glass{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .ui-glass{background:var(--ink-700)}
}
.ui-badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1.6;color:var(--text);
  background:var(--glass);border:1px solid var(--line);
  border-radius:8px;padding:3px 9px;letter-spacing:.02em;
}
.ui-badge-brand{color:var(--brand);border-color:rgba(31,200,160,.32);background:rgba(31,200,160,.10)}
.ui-badge-accent{color:var(--accent);border-color:rgba(242,169,59,.35);background:rgba(242,169,59,.08)}

.sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:18px}
.sec-head h2{margin:0}
.sec-sub{margin:10px 0 0;color:var(--muted);font-size:15px;line-height:1.8}
.lead-text{color:#C7D8D3;font-size:16px;line-height:1.9;margin:0 0 14px}

/* ---------- fact cards ---------- */
.fact-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
@media (max-width:991px){.fact-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:575px){.fact-grid{grid-template-columns:minmax(0,1fr)}}
.fact-card{
  background:var(--ink-800);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 20px 18px;transition:border-color .24s,transform .24s;
}
@media (hover:hover){.fact-card:hover{border-color:rgba(31,200,160,.28);transform:translateY(-3px)}}
.fact-num{
  font-family:var(--font-num);font-size:26px;font-weight:700;letter-spacing:-.01em;
  color:rgba(242,169,59,.9);display:block;margin-bottom:8px;
}
.fact-card h3{font-size:17px;margin-bottom:8px}
.fact-card p{margin:0;font-size:14px;line-height:1.8;color:var(--muted)}

/* ---------- table ---------- */
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--ink-800)}
.check-table{width:100%;border-collapse:collapse;min-width:720px;font-size:15px}
.check-table thead th{
  background:var(--ink-700);color:#CFE0DB;font-weight:600;font-size:13px;letter-spacing:.05em;
  text-align:left;padding:13px 16px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.check-table tbody td{
  padding:14px 16px;border-bottom:1px solid var(--line);color:#D5E4DF;vertical-align:top;line-height:1.75;
}
.check-table tbody tr:last-child td{border-bottom:0}
.check-table tbody tr{transition:background .2s}
.check-table tbody tr:hover{background:rgba(31,200,160,.055)}
.check-table td:first-child{color:var(--text);font-weight:600;white-space:nowrap}
.tbl-hint{color:#B9CBC6;font-size:14px}
.tbl-mark{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--ok);white-space:nowrap}
.tbl-mark.warn{color:#F0918A}
.table-note{margin:12px 2px 0;font-size:13px;color:var(--muted)}

/* ---------- checklist ---------- */
.check-list{display:grid;gap:10px;margin-top:4px}
.check-item{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:var(--ink-800);
  cursor:pointer;transition:border-color .2s,background .2s;
}
.check-item:hover{border-color:rgba(31,200,160,.28);background:var(--ink-700)}
.check-item input[type="checkbox"]{
  appearance:none;-webkit-appearance:none;flex:0 0 auto;
  width:20px;height:20px;margin-top:3px;border-radius:4px;
  border:1px solid rgba(255,255,255,.28);background:transparent;position:relative;
  cursor:pointer;transition:background .2s,border-color .2s;
}
.check-item input[type="checkbox"]:checked{background:var(--brand);border-color:var(--brand)}
.check-item input[type="checkbox"]:checked::after{
  content:"";position:absolute;left:6px;top:1px;width:6px;height:11px;
  border:2px solid #04120F;border-top:0;border-left:0;transform:rotate(42deg);
}
.check-item span{font-size:15px;line-height:1.7;color:#DAE8E4}
.check-progress{font-size:13px;color:var(--muted);margin-top:12px}

/* ---------- media block ---------- */
.media-block{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:24px;align-items:center}
@media (max-width:767px){.media-block{grid-template-columns:minmax(0,1fr)}}
.media-figure{position:relative;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line)}
.media-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.media-figure .media-tag{position:absolute;left:12px;bottom:12px}
.media-body p{color:#C7D8D3;font-size:15px;line-height:1.9}
.square-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.square-list li{position:relative;padding-left:20px;font-size:15px;color:#D5E4DF;line-height:1.8}
.square-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:1px;background:var(--brand);
}

/* ---------- risk grid ---------- */
.risk-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
@media (max-width:639px){.risk-grid{grid-template-columns:minmax(0,1fr)}}
.risk-card{
  background:var(--ink-800);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;transition:border-color .24s,transform .24s;
}
@media (hover:hover){.risk-card:hover{border-color:rgba(31,200,160,.26);transform:translateY(-3px)}}
.risk-card .risk-icon{width:28px;height:28px;color:var(--brand);margin-bottom:10px}
.risk-card h3{font-size:16px;margin-bottom:6px}
.risk-card p{margin:0;font-size:14px;line-height:1.8;color:var(--muted)}

/* ---------- qa list ---------- */
.qa-list{display:grid;gap:14px;margin-top:4px}
.qa-item{padding:16px 18px;border:1px solid var(--line);border-left:3px solid rgba(242,169,59,.75);border-radius:12px;background:var(--ink-800)}
.qa-item dt{font-size:15px;font-weight:600;color:var(--text);margin-bottom:6px}
.qa-item dd{margin:0;font-size:14.5px;line-height:1.85;color:var(--muted)}

/* ---------- sidebar ---------- */
.side-card{background:var(--ink-800);border:1px solid var(--line);border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow-card)}
.side-title{font-size:15px;font-weight:600;color:var(--text);margin:0 0 14px;letter-spacing:.02em}
.cat-nav{display:grid;gap:4px}
.cat-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 12px;border-radius:8px;border-left:2px solid transparent;
  font-size:14.5px;color:var(--muted);transition:background .2s,color .2s,border-color .2s;
}
.cat-nav a:hover{background:var(--ink-700);color:var(--text)}
.cat-nav a.is-active{
  color:var(--text);font-weight:600;border-left-color:var(--brand);
  background:rgba(31,200,160,.08);
}
.cat-nav a .cat-arrow{font-size:12px;color:rgba(255,255,255,.3)}
.cat-nav a.is-active .cat-arrow{color:var(--brand)}

.consult-card{padding:22px}
.consult-card p.consult-desc{margin:0 0 16px;font-size:14px;line-height:1.8;color:var(--muted)}
.ui-field{margin-bottom:14px}
.ui-label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.ui-label .req{color:var(--accent)}
.ui-input,.ui-textarea{
  width:100%;background:var(--ink-700);color:var(--text);
  border:1px solid var(--line);border-radius:var(--radius-input);
  padding:11px 14px;font-size:14px;line-height:1.7;font-family:inherit;
  transition:border-color .2s,box-shadow .2s;
}
.ui-textarea{min-height:96px;resize:vertical}
.ui-input::placeholder,.ui-textarea::placeholder{color:#7F918C}
.ui-input:focus,.ui-textarea:focus{
  outline:none;border-color:rgba(31,200,160,.7);
  box-shadow:0 0 0 3px rgba(31,200,160,.16);
}
.ui-input.is-invalid,.ui-textarea.is-invalid{border-color:var(--warn);box-shadow:0 0 0 3px rgba(228,87,76,.14)}
.form-note{margin:12px 0 0;font-size:12px;line-height:1.7;color:var(--muted)}
.form-note.is-error{color:#F0918A}
.form-note.is-ok{color:var(--ok)}

/* ---------- related ---------- */
.rel-section{margin-top:var(--block-space)}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
@media (max-width:991px){.rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:639px){.rel-grid{grid-template-columns:minmax(0,1fr)}}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--ink-800);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);transition:transform .24s,border-color .24s;
}
@media (hover:hover){.rel-card:hover{transform:translateY(-4px);border-color:rgba(31,200,160,.28)}}
.rel-cover{position:relative;overflow:hidden}
.rel-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;transition:transform .3s}
@media (hover:hover){.rel-card:hover .rel-cover img{transform:scale(1.03)}}
.rel-cover .rel-badge{position:absolute;left:12px;top:12px}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.rel-body h3{font-size:17px;line-height:1.5}
.rel-body p{margin:0;font-size:14px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.rel-foot .rel-arrow{color:var(--brand);transition:transform .24s}
@media (hover:hover){.rel-card:hover .rel-arrow{transform:translateX(4px)}}

/* ---------- cta band ---------- */
.cta-section{margin-top:clamp(44px,5vw,64px)}
.cta-band{
  background:var(--paper);color:var(--paper-text);
  border-radius:20px;padding:clamp(24px,4vw,40px);
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-band h2{color:var(--paper-text);font-size:clamp(22px,2.4vw,28px);margin-bottom:8px}
.cta-band p{margin:0;color:#41524D;font-size:15px;line-height:1.8;max-width:640px}
.cta-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.cta-band .ui-link{color:#0E6B57;text-decoration-color:rgba(242,169,59,.9)}
.cta-band .ui-link:hover{color:#0A5445}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-800);border-top:1px solid var(--line);margin-top:var(--block-space);padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
@media (max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media (max-width:575px){.footer-grid{grid-template-columns:1fr}}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:17px}
.footer-brand svg{color:var(--brand);flex:0 0 auto}
.footer-about{color:var(--muted);font-size:14px;line-height:1.85;margin:14px 0 16px}
.footer-kw{display:flex;flex-wrap:wrap;gap:8px}
.footer-kw span{font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:8px;padding:4px 10px;background:var(--glass)}
.footer-title{font-size:15px;color:var(--text);margin:0 0 14px;font-weight:600;letter-spacing:.02em}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:var(--muted);transition:color .2s}
.footer-links a:hover{color:var(--brand)}
.footer-contact{font-size:13px;color:var(--muted);line-height:1.85}
.footer-contact strong{display:block;color:var(--text);font-size:13px;margin-bottom:4px;font-weight:600}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  border-top:1px solid var(--line);margin-top:40px;padding:18px 0;font-size:13px;color:var(--muted);
}

/* ---------- to top ---------- */
.to-top{
  position:fixed;right:20px;bottom:20px;z-index:1040;
  width:48px;height:48px;border-radius:50%;
  background:var(--glass);border:1px solid var(--line);color:var(--text);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  display:none;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .2s,transform .2s;
}
.to-top.is-show{display:inline-flex}
.to-top:hover{border-color:rgba(31,200,160,.5);transform:translateY(-2px)}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category4 */
:root{
  --ink-900:#06100E;
  --ink-800:#0B1A17;
  --ink-700:#10241F;
  --glass:rgba(255,255,255,0.06);
  --line:rgba(255,255,255,0.10);
  --brand:#1FC8A0;
  --brand-deep:#17A886;
  --accent:#F2A93B;
  --text:#E8F2EF;
  --muted:#94A8A3;
  --paper:#F7FAF9;
  --paper-text:#16211F;
  --ok:#38D39F;
  --warn:#E4574C;
  --radius-card:16px;
  --radius-img:12px;
  --shadow-card:0 20px 50px -24px rgba(0,0,0,.72), inset 0 1px 0 rgba(255,255,255,.08);
  --ease:cubic-bezier(.22,.61,.36,1);
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:.01em;color:var(--text);}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
.num{font-family:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;letter-spacing:-.01em;font-variant-numeric:tabular-nums;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

/* ---------- 容器 ---------- */
.container-ui{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--gutter);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#FFFFFF;
  border-bottom:1px solid #E4EBE8;
  box-shadow:0 2px 12px rgba(6,16,14,.06);
}
.header-inner{display:flex;align-items:center;gap:18px;height:66px;}
.brand{display:inline-flex;align-items:center;gap:9px;color:#0B1A17;font-weight:700;font-size:18px;white-space:nowrap;flex:0 0 auto;}
.brand svg{color:var(--brand);flex:0 0 auto;}
.brand:hover{color:#0B1A17;}
.brand-sub{font-size:12px;font-weight:600;color:#5A6B66;letter-spacing:.04em;margin-left:2px;}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:6px;flex:1 1 auto;min-width:0;}
.nav-item-link{
  position:relative;display:inline-block;font-size:15px;color:#35433F;
  padding:11px 11px;border-radius:8px;white-space:nowrap;
  transition:color .2s var(--ease);
}
.nav-item-link::after{
  content:"";position:absolute;left:11px;right:11px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left center;
  transition:transform .25s var(--ease);
}
.nav-item-link:hover{color:#0B1A17;}
.nav-item-link:hover::after{transform:scaleX(1);}
.nav-item-link.active{color:#0B1A17;font-weight:600;}
.nav-item-link.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;width:216px;padding:0 14px;
  border:1px solid #E4EBE8;border-radius:999px;background:#F7FAF9;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.search-box svg{color:#7C8C87;flex:0 0 auto;}
.search-box input{
  border:0;background:transparent;outline:none;width:100%;font-size:13.5px;color:#16211F;
}
.search-box input::placeholder{color:#8A9A95;}
.search-box:focus-within{border-color:rgba(31,200,160,.7);background:#fff;box-shadow:0 0 0 3px rgba(31,200,160,.16);}
.header-cta{padding:10px 20px;font-size:14px;line-height:1.2;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid #E4EBE8;border-radius:12px;
  background:#fff;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:20px;height:2px;background:#0B1A17;border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);}
.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);}

/* 移动抽屉 */
.ui-drawer{background:#fff;color:#16211F;width:320px;max-width:88vw;}
.ui-drawer .offcanvas-header{border-bottom:1px solid #E4EBE8;padding:16px 20px;}
.ui-drawer .offcanvas-body{padding:12px 16px 24px;}
.drawer-brand{display:flex;align-items:center;gap:9px;color:#0B1A17;font-weight:700;font-size:17px;}
.drawer-brand svg{color:var(--brand);}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 12px;font-size:15px;color:#26332F;
  border-bottom:1px solid #EEF3F1;border-radius:8px;
}
.drawer-link:hover{background:#F4FAF8;color:#0B1A17;}
.drawer-link.active{color:#0B1A17;font-weight:600;box-shadow:inset 3px 0 0 var(--brand);padding-left:15px;}
.drawer-search{margin:16px 0 12px;}
.drawer-search .search-box{width:100%;background:#F7FAF9;}
.drawer-cta{width:100%;margin-top:8px;}

/* ---------- 按钮 ---------- */
.ui-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;border-radius:999px;padding:14px 28px;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),filter .2s var(--ease);
}
.ui-btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#04120F;
  box-shadow:0 0 0 1px rgba(31,200,160,.45),0 10px 30px -8px rgba(31,200,160,.5);
}
.ui-btn-primary:hover{
  color:#04120F;filter:brightness(1.06);transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(31,200,160,.55),0 14px 34px -8px rgba(31,200,160,.6);
}
.ui-btn-primary:active{transform:translateY(0);}
.ui-btn-ghost{background:transparent;border-color:var(--line);color:var(--text);}
.ui-btn-ghost:hover{border-color:rgba(31,200,160,.42);color:var(--brand);background:rgba(31,200,160,.06);}
.ui-btn-dark{background:#0B1A17;color:#F7FAF9;border-color:#0B1A17;}
.ui-btn-dark:hover{background:#10241F;color:#fff;transform:translateY(-1px);}
.ui-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-weight:600;font-size:15px;
  border-bottom:2px solid var(--accent);padding-bottom:2px;border-radius:2px;
}
.ui-link:hover{color:#FFC46B;border-bottom-color:#FFC46B;}
.ui-link.on-paper{color:#0B5D4C;border-bottom-color:#0B5D4C;}
.ui-link.on-paper:hover{color:#0B1A17;border-bottom-color:#0B1A17;}

/* ---------- 页头 Banner ---------- */
.page-banner{
  position:relative;overflow:hidden;isolation:isolate;
  min-height:300px;display:flex;align-items:center;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-banner::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(90deg,rgba(6,16,14,.90) 0%,rgba(6,16,14,.76) 52%,rgba(6,16,14,.58) 100%);
}
.page-banner::after{
  content:"";position:absolute;left:50%;top:-140px;transform:translateX(-50%);
  width:760px;height:340px;z-index:-1;pointer-events:none;
  background:radial-gradient(closest-side,rgba(31,200,160,.12),transparent 72%);
}
.banner-inner{
  display:flex;align-items:flex-end;justify-content:space-between;gap:32px;
  width:100%;padding:44px 0;
}
.banner-text{max-width:660px;animation:bannerIn .34s var(--ease) both;}
.banner-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.12em;
  color:var(--brand);text-transform:uppercase;margin-bottom:14px;
}
.banner-eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);display:inline-block;}
.banner-text h1{
  font-size:clamp(28px,3.6vw,44px);line-height:1.2;font-weight:700;margin-bottom:14px;
}
.banner-text .banner-lead{font-size:17px;line-height:1.75;color:#C6D6D1;margin:0;max-width:560px;}
.breadcrumb-ui{font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding-bottom:6px;}
.breadcrumb-ui a{color:#C6D6D1;}
.breadcrumb-ui a:hover{color:var(--brand);}
.breadcrumb-ui .sep{color:#5E736E;}
.breadcrumb-ui .now{color:var(--brand);}
@keyframes bannerIn{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:translateY(0);}}

/* ---------- 主体布局 ---------- */
.page-main{padding:clamp(44px,5.5vw,76px) 0 clamp(56px,7vw,96px);}
.layout-grid{display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:36px;align-items:start;}
.content-col{min-width:0;display:flex;flex-direction:column;gap:clamp(36px,4.4vw,56px);}

/* 区块标题 */
.section-head{margin-bottom:24px;}
.section-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.12em;color:var(--brand);margin-bottom:10px;}
.section-eyebrow::before{content:"";width:18px;height:1px;background:var(--brand);}
.section-head h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3;font-weight:650;}
.section-head p{margin:10px 0 0;color:var(--muted);font-size:15px;line-height:1.8;max-width:640px;}

/* 双栏图文 */
.figure-block{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:28px;align-items:center;
}
.figure-media{position:relative;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);}
.figure-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s var(--ease);}
.figure-media:hover img{transform:scale(1.03);}
.figure-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,16,14,0) 45%,rgba(6,16,14,.55) 100%);}
.figure-tag{
  position:absolute;left:14px;bottom:14px;z-index:2;
  display:inline-flex;align-items:center;gap:7px;padding:6px 12px;border-radius:8px;
  background:rgba(6,16,14,.62);border:1px solid var(--line);backdrop-filter:blur(10px);
  font-size:12px;color:#D3E4DF;letter-spacing:.04em;
}
.figure-tag i{width:6px;height:6px;border-radius:1px;background:var(--accent);display:inline-block;}
.figure-body h3{font-size:20px;font-weight:600;margin-bottom:12px;}
.figure-body p{color:#C4D4CF;font-size:15.5px;line-height:1.85;}
.check-list{margin:18px 0 0;display:flex;flex-direction:column;gap:12px;}
.check-list li{display:flex;gap:10px;font-size:15px;color:#D6E5E0;line-height:1.7;}
.check-list li svg{flex:0 0 auto;margin-top:5px;color:var(--brand);}
.check-list li strong{color:var(--text);font-weight:600;}

/* 2×2 图文卡 */
.sec-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.icon-card{
  position:relative;padding:24px 22px;border-radius:var(--radius-card);
  background:var(--ink-700);background:var(--glass);
  border:1px solid var(--line);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
  transition:transform .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);
}
.icon-card:hover{transform:translateY(-3px);border-color:rgba(31,200,160,.30);background:rgba(31,200,160,.05);}
.icon-badge{
  width:48px;height:48px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(31,200,160,.12);border:1px solid rgba(31,200,160,.28);color:var(--brand);margin-bottom:16px;
}
.icon-card h3{font-size:16.5px;font-weight:600;margin-bottom:8px;}
.icon-card p{font-size:14.5px;line-height:1.75;color:var(--muted);margin:0;}
.icon-card .corner-num{
  position:absolute;right:16px;top:14px;font-size:12px;letter-spacing:.1em;color:rgba(242,169,59,.85);
  border:1px solid rgba(242,169,59,.4);border-radius:4px;padding:1px 6px;
}

/* 三步流程 */
.steps-flow{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;counter-reset:step;}
.step-item{position:relative;padding:22px 20px;border-radius:var(--radius-card);background:var(--ink-800);border:1px solid var(--line);transition:border-color .25s var(--ease),transform .25s var(--ease);}
.step-item:hover{border-color:rgba(31,200,160,.3);transform:translateY(-3px);}
.step-num{
  font-size:26px;font-weight:700;color:transparent;-webkit-text-stroke:1px var(--accent);
  line-height:1;margin-bottom:12px;display:block;letter-spacing:.02em;
}
.step-item h3{font-size:16px;font-weight:600;margin-bottom:7px;}
.step-item p{font-size:14px;color:var(--muted);margin:0;line-height:1.75;}
.step-item::after{
  content:"";position:absolute;right:-10px;top:50%;width:10px;height:1px;
  border-top:1px dashed rgba(255,255,255,.22);
}
.step-item:last-child::after{display:none;}

/* 自查表 */
.check-panel{background:var(--ink-800);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);overflow:hidden;}
.check-panel-head{padding:18px 22px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;}
.check-panel-head h3{font-size:16px;font-weight:600;}
.check-panel-head span{font-size:12px;color:var(--muted);}
.check-panel-body{padding:8px 22px 20px;}
.check-row{display:flex;gap:12px;align-items:flex-start;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.06);}
.check-row:last-child{border-bottom:0;}
.check-row .box{
  width:18px;height:18px;border-radius:4px;border:1px solid rgba(255,255,255,.28);
  flex:0 0 auto;margin-top:4px;position:relative;background:rgba(255,255,255,.03);
}
.check-row .box::after{
  content:"";position:absolute;left:5px;top:1px;width:6px;height:11px;
  border-right:2px solid #04120F;border-bottom:2px solid #04120F;
  transform:rotate(42deg) scale(0);transition:transform .18s var(--ease);
}
.check-row.on .box{background:var(--brand);border-color:var(--brand);}
.check-row.on .box::after{transform:rotate(42deg) scale(1);}
.check-row .txt{min-width:0;}
.check-row .txt strong{display:block;font-size:15px;font-weight:600;color:var(--text);}
.check-row .txt span{font-size:13.5px;color:var(--muted);line-height:1.7;}

/* 常见疑问 */
.faq-accordion .accordion-item{background:transparent;border:0;border-top:1px solid var(--line);}
.faq-accordion .accordion-item:last-child{border-bottom:1px solid var(--line);}
.faq-accordion .accordion-button{
  background:transparent;color:var(--text);font-size:16px;font-weight:600;
  padding:20px 44px 20px 0;box-shadow:none;border-radius:0;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand);background:transparent;box-shadow:none;}
.faq-accordion .accordion-button:focus{box-shadow:none;border-color:transparent;}
.faq-accordion .accordion-button::after{
  background-image:none;content:"";position:absolute;right:4px;
  width:14px;height:14px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  transform:rotate(45deg);transform-origin:center;transition:transform .25s var(--ease);margin:0;
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(225deg);}
.faq-accordion .accordion-body{padding:0 44px 22px 0;font-size:15px;line-height:1.85;color:var(--muted);}
@media (min-width:768px){.faq-accordion .accordion-body{padding-right:40px;}}

/* 相关分类 */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--radius-card);
  background:var(--ink-800);border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .25s var(--ease),border-color .25s var(--ease);
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(31,200,160,.28);}
.rel-cover{position:relative;overflow:hidden;}
.rel-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s var(--ease);}
.rel-card:hover .rel-cover img{transform:scale(1.04);}
.rel-cover .ui-badge{
  position:absolute;left:12px;top:12px;z-index:2;font-size:12px;padding:4px 10px;border-radius:8px;
  background:rgba(6,16,14,.62);border:1px solid var(--line);color:#D6E5E0;backdrop-filter:blur(10px);
}
.rel-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto;}
.rel-body h3{font-size:16px;font-weight:600;line-height:1.5;}
.rel-body p{font-size:13.5px;color:var(--muted);line-height:1.7;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-foot{display:flex;align-items:center;justify-content:space-between;padding:0 18px 16px;font-size:12px;color:var(--muted);}
.rel-foot svg{transition:transform .25s var(--ease);}
.rel-card:hover .rel-foot svg{transform:translateX(4px);color:var(--brand);}

/* 浅色 CTA 条 */
.cta-band{
  background:var(--paper);color:var(--paper-text);border-radius:20px;
  padding:clamp(26px,3.4vw,40px);display:flex;align-items:center;justify-content:space-between;
  gap:26px;flex-wrap:wrap;box-shadow:0 24px 60px -30px rgba(0,0,0,.8);
}
.cta-band h2{color:#0B1A17;font-size:clamp(20px,2.3vw,27px);line-height:1.35;font-weight:650;}
.cta-band p{color:#4E615C;font-size:15px;margin:8px 0 0;max-width:520px;}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}

/* ---------- 侧栏 ---------- */
.side-col{display:flex;flex-direction:column;gap:20px;position:sticky;top:88px;}
.side-panel{background:var(--ink-800);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);overflow:hidden;}
.side-panel-head{padding:16px 20px;border-bottom:1px solid var(--line);font-size:13px;letter-spacing:.1em;color:var(--muted);display:flex;align-items:center;gap:8px;}
.side-panel-head::before{content:"";width:3px;height:14px;background:var(--brand);border-radius:2px;}
.side-nav{padding:8px 10px 14px;display:flex;flex-direction:column;}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:46px;padding:0 12px;border-radius:8px;font-size:14.5px;color:#C4D4CF;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.side-nav a:hover{background:rgba(255,255,255,.04);color:var(--text);}
.side-nav a.active{color:var(--brand);font-weight:600;box-shadow:inset 3px 0 0 var(--brand);background:rgba(31,200,160,.06);}
.side-nav a svg{opacity:.5;}
.side-nav a.active svg{opacity:1;}
.side-consult{
  padding:24px 22px;border-radius:var(--radius-card);
  background:var(--ink-700);background:var(--glass);
  border:1px solid var(--line);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.side-consult h3{font-size:16.5px;font-weight:600;margin-bottom:8px;}
.side-consult p{font-size:13.5px;color:var(--muted);line-height:1.75;margin:0 0 16px;}
.ui-field{margin-bottom:14px;}
.ui-label{display:block;font-size:13px;color:var(--muted);margin-bottom:7px;}
.ui-label .req{color:var(--accent);margin-left:3px;}
.ui-input{
  width:100%;height:44px;padding:0 14px;border-radius:12px;background:var(--ink-700);
  border:1px solid var(--line);color:var(--text);font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.ui-input::placeholder{color:#6F847F;}
.ui-input:focus{outline:none;border-color:rgba(31,200,160,.62);box-shadow:0 0 0 3px rgba(31,200,160,.14);}
.form-hint{font-size:12px;color:#7E938E;margin:10px 0 0;line-height:1.7;}
.side-note{padding:18px 20px;border-radius:var(--radius-card);border:1px dashed rgba(242,169,59,.35);background:rgba(242,169,59,.05);}
.side-note strong{display:block;font-size:14px;color:#F3D6A6;margin-bottom:6px;font-weight:600;}
.side-note span{font-size:13px;color:var(--muted);line-height:1.75;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-800);border-top:1px solid var(--line);padding:clamp(40px,5vw,64px) 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:36px;}
.footer-brand{display:inline-flex;align-items:center;gap:9px;color:var(--text);font-weight:700;font-size:17px;margin-bottom:14px;}
.footer-brand svg{color:var(--brand);}
.footer-about{font-size:13.5px;color:var(--muted);line-height:1.85;margin:0 0 16px;max-width:340px;}
.footer-kw{display:flex;flex-wrap:wrap;gap:8px;}
.footer-kw span{font-size:12px;color:#B9CBC6;padding:4px 10px;border-radius:8px;background:rgba(255,255,255,.05);border:1px solid var(--line);}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px;letter-spacing:.04em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:13.5px;color:var(--muted);}
.footer-links a:hover{color:var(--brand);}
.footer-contact{font-size:13.5px;color:var(--muted);line-height:1.85;}
.footer-contact strong{display:block;color:#C6D6D1;font-size:13px;font-weight:600;margin-bottom:4px;}
.footer-bottom{
  border-top:1px solid var(--line);padding:18px 0 22px;display:flex;justify-content:space-between;
  gap:12px;flex-wrap:wrap;font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--brand);}

/* 返回顶部 */
.to-top{
  position:fixed;right:22px;bottom:22px;width:48px;height:48px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;z-index:1040;
  background:var(--glass);border:1px solid var(--line);color:var(--text);
  backdrop-filter:blur(12px);cursor:pointer;opacity:0;pointer-events:none;
  transition:opacity .25s var(--ease),transform .25s var(--ease),border-color .25s var(--ease);
}
.to-top.show{opacity:1;pointer-events:auto;}
.to-top:hover{border-color:rgba(31,200,160,.5);color:var(--brand);transform:translateY(-2px);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .search-box{width:180px;}
  .layout-grid{grid-template-columns:minmax(0,1fr) 300px;gap:28px;}
  .side-col{position:static;}
}
@media (max-width:991px){
  .nav-menu,.search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions{gap:10px;}
  .layout-grid{grid-template-columns:minmax(0,1fr);}
  .figure-block{grid-template-columns:minmax(0,1fr);}
  .figure-media img{aspect-ratio:16/9;}
  .steps-flow{grid-template-columns:repeat(3,minmax(0,1fr));}
  .step-item::after{display:none;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .banner-inner{flex-direction:column;align-items:flex-start;gap:18px;padding:36px 0;}
  .page-banner{min-height:260px;}
}
@media (max-width:767px){
  .sec-cards{grid-template-columns:minmax(0,1fr);}
  .steps-flow{grid-template-columns:minmax(0,1fr);}
  .header-cta{display:none;}
  .banner-text .banner-lead{font-size:15.5px;}
  .cta-band{padding:24px 20px;border-radius:16px;}
  .cta-actions .ui-btn{width:100%;}
  .cta-actions{width:100%;}
}
@media (max-width:575px){
  :root{--gutter:18px;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .page-banner{min-height:200px;}
  .banner-text h1{font-size:25px;}
  .footer-bottom{flex-direction:column;}
  .to-top{right:14px;bottom:14px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}
@media (hover:none){
  .icon-card:hover,.rel-card:hover,.step-item:hover{transform:none;}
}

/* roulang page: category5 */
:root{
  --ink-900:#06100E;
  --ink-800:#0B1A17;
  --ink-700:#10241F;
  --glass:rgba(255,255,255,0.06);
  --line:rgba(255,255,255,0.10);
  --brand:#1FC8A0;
  --brand-deep:#17A886;
  --accent:#F2A93B;
  --text:#E8F2EF;
  --muted:#94A8A3;
  --paper:#F7FAF9;
  --paper-text:#16211F;
  --ok:#38D39F;
  --warn:#E4574C;
  --radius-card:16px;
  --radius-img:12px;
  --shadow-card:0 20px 50px -24px rgba(0,0,0,.72), inset 0 1px 0 rgba(255,255,255,.08);
  --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;
  background:var(--ink-900);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:.01em;}
p{margin:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;
}
.container-ui{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num-font{font-family:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;letter-spacing:-.01em;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#FFFFFF;
  border-bottom:1px solid #E4EBE8;
  box-shadow:0 2px 12px rgba(6,16,14,.06);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:66px;}
.brand{
  display:inline-flex;align-items:center;gap:10px;flex:none;
  color:#0B1A17;font-weight:700;font-size:17px;letter-spacing:.01em;white-space:nowrap;
}
.brand:hover{color:#0B1A17;}
.brand svg{color:var(--brand);flex:none;}
.nav-menu{display:flex;align-items:center;gap:2px;margin:0 auto;}
.nav-item-link{
  position:relative;display:inline-flex;align-items:center;height:66px;
  padding:0 13px;font-size:15px;color:#35433F;white-space:nowrap;
  transition:color .2s var(--ease);
}
.nav-item-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:0;height:2px;
  background:transparent;border-radius:2px;transition:background .2s var(--ease);
}
.nav-item-link:hover{color:#0B1A17;}
.nav-item-link:hover::after{background:rgba(31,200,160,.45);}
.nav-item-link.active{color:#0B1A17;font-weight:600;}
.nav-item-link.active::after{background:var(--brand);}
.header-tools{display:flex;align-items:center;gap:12px;flex:none;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search svg{position:absolute;left:14px;color:#8A9A96;pointer-events:none;}
.nav-search input{
  width:206px;height:40px;border-radius:999px;border:1px solid #E4EBE8;
  background:#F7FAF9;padding:0 16px 0 40px;font-size:14px;color:#0B1A17;
  outline:none;transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.nav-search input::placeholder{color:#8A9A96;}
.nav-search input:focus{border-color:rgba(31,200,160,.65);background:#fff;box-shadow:0 0 0 3px rgba(31,200,160,.16);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid #E4EBE8;border-radius:12px;
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;
  padding:0;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#0B1A17;border-radius:2px;transition:transform .22s var(--ease),opacity .22s var(--ease);}
.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);}

/* ---------- 按钮 ---------- */
.ui-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;text-decoration:none;
  border-radius:999px;padding:14px 28px;border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),filter .2s var(--ease);
}
.ui-btn-primary{
  background:linear-gradient(135deg,#1FC8A0,#17A886);color:#04120F;
  box-shadow:0 0 0 1px rgba(31,200,160,.45),0 10px 30px -8px rgba(31,200,160,.5);
}
.ui-btn-primary:hover{color:#04120F;}
.ui-btn-ghost{background:transparent;border:1px solid var(--line);color:var(--text);border-radius:12px;}
.ui-btn-ghost:hover{border-color:rgba(31,200,160,.30);color:var(--text);}
.ui-btn-link{
  background:none;border:0;border-radius:0;padding:0 0 3px;
  color:var(--accent);border-bottom:2px solid var(--accent);font-weight:600;
}
.header-tools .ui-btn{padding:11px 20px;font-size:14px;}
.ui-btn:active{transform:translateY(0);}
@media (hover:hover){
  .ui-btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(31,200,160,.6),0 14px 34px -8px rgba(31,200,160,.6);}
  .ui-btn-ghost:hover{transform:translateY(-1px);}
}

/* ---------- 通用卡片 / 徽章 ---------- */
.ui-card{
  background:var(--ink-800);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
}
.ui-glass{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
}
@supports ((-webkit-backdrop-filter:blur(14px)) or (backdrop-filter:blur(14px))){
  .ui-glass{-webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);}
}
@supports not ((-webkit-backdrop-filter:blur(14px)) or (backdrop-filter:blur(14px))){
  .ui-glass{background:var(--ink-700);}
}
.ui-badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1;padding:7px 11px;border-radius:8px;
  background:var(--glass);border:1px solid var(--line);color:var(--muted);
  white-space:nowrap;
}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- 页头 Banner ---------- */
.page-hero{
  position:relative;
  background:linear-gradient(rgba(6,16,14,.80),rgba(6,16,14,.90)),url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  border-bottom:1px solid var(--line);
  padding:clamp(46px,6vw,76px) 0;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(60% 80% at 18% 0%,rgba(31,200,160,.12),transparent 70%);
}
.page-hero .container-ui{position:relative;z-index:1;}
.hero-row{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.page-hero h1{
  font-size:clamp(26px,3.6vw,42px);line-height:1.22;font-weight:700;
  max-width:24ch;margin-bottom:14px;
}
.page-hero .hero-lead{font-size:18px;line-height:1.7;color:#C6D6D1;max-width:46ch;}
.page-crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:6px;
}
.page-crumb a{color:#C6D6D1;}
.page-crumb a:hover{color:var(--brand);}
.page-crumb .sep{color:rgba(255,255,255,.28);}
.page-crumb [aria-current]{color:var(--brand);}

/* ---------- 主体双栏 ---------- */
.page-body{padding:clamp(46px,6vw,78px) 0;}
.content-shell p{color:#C2D2CD;font-size:16px;line-height:1.9;}
.content-shell .lede{font-size:17px;color:#D2E0DC;margin-bottom:18px;}
.section-title{
  font-size:clamp(21px,2.3vw,27px);font-weight:650;line-height:1.35;
  margin:40px 0 18px;padding-left:14px;position:relative;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;
  background:var(--brand);
}
.section-title:first-child{margin-top:0;}
.content-shell .chip-row{margin-bottom:8px;}

/* 手风琴 FAQ */
.faq-accordion .accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--line);
}
.faq-accordion .accordion-item:first-of-type{border-top:1px solid var(--line);}
.faq-accordion .accordion-header{margin:0;}
.faq-accordion .accordion-button{
  position:relative;background:transparent;color:var(--text);
  font-size:16px;font-weight:600;line-height:1.6;
  padding:18px 46px 18px 2px;border-radius:0;box-shadow:none;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand);background:transparent;box-shadow:none;}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 2px rgba(31,200,160,.35);border-radius:8px;}
.faq-accordion .accordion-button::after{
  content:"";position:absolute;right:10px;top:50%;width:14px;height:14px;margin-top:-7px;
  background:
    linear-gradient(var(--brand),var(--brand)) center/14px 2px no-repeat,
    linear-gradient(var(--brand),var(--brand)) center/2px 14px no-repeat;
  transition:transform .25s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.faq-accordion .accordion-body{
  padding:0 2px 20px;color:var(--muted);font-size:15px;line-height:1.85;
}
.faq-accordion .accordion-body strong{color:#CBDDD8;font-weight:600;}

/* 三步准备清单 */
.step-list{list-style:none;display:grid;gap:14px;margin-top:4px;}
.step-list li{
  display:flex;align-items:flex-start;gap:16px;
  padding:16px 18px;background:var(--ink-800);
  border:1px solid var(--line);border-radius:12px;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.step-list li:hover{border-color:rgba(31,200,160,.28);background:var(--ink-700);}
.step-list .num{
  font-family:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:28px;font-weight:700;line-height:1;color:var(--accent);
  min-width:42px;letter-spacing:-.01em;
}
@supports ((-webkit-text-stroke:1px #000)){
  .step-list .num{color:transparent;-webkit-text-stroke:1px var(--accent);}
}
.step-list h3{font-size:15px;font-weight:600;margin-bottom:3px;}
.step-list p{font-size:14px;line-height:1.75;color:var(--muted);margin:0;}

/* ---------- 侧栏 ---------- */
.side-col{display:grid;gap:20px;}
@media (min-width:992px){
  .side-col{position:sticky;top:86px;}
}
.side-nav{padding:22px;}
.side-title{
  font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--muted);
  margin:0 0 14px;
}
.side-nav a{
  display:block;padding:11px 14px;border-radius:10px;
  font-size:15px;color:var(--text);border-left:2px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.side-nav a:hover{background:var(--ink-700);color:var(--text);}
.side-nav a.current{
  background:rgba(31,200,160,.10);border-left-color:var(--brand);
  color:var(--brand);font-weight:600;
}
.consult-card{padding:24px;}
.consult-card h2{font-size:18px;font-weight:650;margin-bottom:10px;}
.consult-card p{font-size:14px;line-height:1.8;color:var(--muted);margin-bottom:18px;}
.consult-card .ui-btn{width:100%;}
.consult-card .consult-note{
  margin-top:14px;font-size:12px;line-height:1.7;color:#7F938E;
}
.consult-divider{height:1px;background:var(--line);margin:16px 0;}

/* ---------- 相关分类 ---------- */
.related-section{padding:0 0 clamp(46px,6vw,80px);}
.rel-card{
  display:block;height:100%;overflow:hidden;
  background:var(--ink-800);border:1px solid var(--line);border-radius:var(--radius-card);
  color:var(--text);box-shadow:var(--shadow-card);
  transition:transform .25s var(--ease),border-color .25s var(--ease);
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(31,200,160,.28);color:var(--text);}
.rel-card figure{margin:0;aspect-ratio:16/10;overflow:hidden;background:var(--ink-700);}
.rel-card img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease);}
.rel-card:hover img{transform:scale(1.04);}
.rel-card-body{padding:18px 20px 20px;}
.rel-card-body h3{font-size:17px;font-weight:650;line-height:1.45;margin-bottom:8px;}
.rel-card-body p{font-size:14px;line-height:1.75;color:var(--muted);margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-more{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--brand);font-weight:600;}
.rel-more svg{transition:transform .25s var(--ease);}
.rel-card:hover .rel-more svg{transform:translateX(4px);}

/* ---------- CTA 条 ---------- */
.cta-section{padding:0 0 clamp(56px,7vw,96px);}
.cta-band{
  background:var(--paper);color:var(--paper-text);
  border-radius:20px;padding:clamp(28px,4vw,46px);
  display:flex;align-items:center;justify-content:space-between;
  gap:26px;flex-wrap:wrap;
}
.cta-band h2{color:var(--paper-text);font-size:clamp(21px,2.4vw,28px);line-height:1.35;margin-bottom:8px;font-weight:650;}
.cta-band p{color:#4A5B57;font-size:15px;line-height:1.8;max-width:56ch;margin:0;}
.cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;}
.cta-band .ui-btn-link{color:#0F6B57;border-bottom-color:#0F6B57;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-800);border-top:1px solid var(--line);padding:clamp(44px,5vw,64px) 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px;}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:700;color:var(--text);margin-bottom:14px;
}
.footer-brand svg{color:var(--brand);flex:none;}
.footer-about{font-size:14px;line-height:1.85;color:var(--muted);margin-bottom:16px;max-width:36ch;}
.footer-kw{display:flex;flex-wrap:wrap;gap:8px;}
.footer-kw span{
  font-size:12px;padding:6px 10px;border-radius:8px;
  background:var(--glass);border:1px solid var(--line);color:#A9BDB8;
}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin:0 0 14px;letter-spacing:.02em;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:var(--muted);}
.footer-links a:hover{color:var(--brand);}
.footer-contact{font-size:13px;line-height:1.85;color:var(--muted);}
.footer-contact strong{display:block;color:#CBDBD6;font-weight:600;margin-bottom:4px;}
.footer-bottom{
  border-top:1px solid var(--line);padding:18px 0 22px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#7F938E;
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:22px;width:48px;height:48px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  opacity:0;visibility:hidden;transform:translateY(8px);cursor:pointer;z-index:1040;
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s,border-color .2s var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{border-color:rgba(31,200,160,.45);color:var(--brand);}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{background:#FFFFFF;color:#0B1A17;width:min(340px,86vw);}
.mobile-drawer .offcanvas-header{
  border-bottom:1px solid #E4EBE8;padding:18px 20px;
}
.mobile-drawer .drawer-brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:#0B1A17;}
.mobile-drawer .drawer-brand svg{color:var(--brand);}
.mobile-drawer .btn-close{opacity:.55;}
.mobile-drawer .offcanvas-body{padding:12px 14px 24px;display:flex;flex-direction:column;}
.drawer-link{
  display:flex;align-items:center;min-height:48px;padding:0 10px;
  font-size:15px;color:#35433F;border-bottom:1px solid #EEF3F1;
}
.drawer-link:hover{color:#0B1A17;}
.drawer-link.current{color:var(--brand-deep);font-weight:600;}
.drawer-cta{margin-top:20px;width:100%;}
.drawer-search{
  display:flex;align-items:center;height:44px;border-radius:12px;border:1px solid #E4EBE8;
  background:#F7FAF9;padding:0 12px;margin-bottom:10px;
}
.drawer-search input{border:0;background:transparent;width:100%;font-size:14px;outline:none;color:#0B1A17;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .nav-search input{width:170px;}
  .nav-item-link{padding:0 10px;font-size:14px;}
  .nav-item-link::after{left:10px;right:10px;}
}
@media (max-width:991.98px){
  .nav-menu{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{gap:12px;justify-content:space-between;}
  .page-hero{padding:38px 0;}
  .hero-row{align-items:flex-start;gap:18px;}
  .page-crumb{order:-1;}
  .section-title{margin-top:34px;}
}
@media (max-width:767.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .page-hero h1{font-size:clamp(24px,6.2vw,30px);}
  .page-hero .hero-lead{font-size:16px;}
  .faq-accordion .accordion-button{font-size:15px;padding:16px 42px 16px 2px;}
  .cta-band{padding:26px 22px;}
}
@media (max-width:575.98px){
  .container-ui{padding:0 18px;}
  .header-tools .ui-btn{display:none;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .step-list li{gap:12px;padding:14px;}
  .step-list .num{font-size:24px;min-width:34px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}