/* roulang page: index */
:root{
  --brand:#1E6B5C;
  --brand-dark:#145246;
  --brand-deep:#0F3E36;
  --brand-light:#DCEBE6;
  --accent:#C8793D;
  --accent-light:#F3DCC9;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --ink:#1D2523;
  --ink-soft:#66706C;
  --line:#E5DED3;
  --ok:#3E8E6E;
  --warn:#B4553C;
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --sh-s:0 1px 2px rgba(30,50,45,.06);
  --sh-m:0 16px 40px rgba(30,50,45,.08);
  --sh-l:0 24px 60px rgba(30,50,45,.14);
  --sp:clamp(56px,7vw,104px);
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,"Helvetica Neue",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.32;color:var(--ink);letter-spacing:.01em}
p{margin:0}
button,input,select{font-family:inherit;font-size:100%}
:focus-visible{outline:3px solid rgba(30,107,92,.42);outline-offset:2px;border-radius:6px}

.grid-container{max-width:1240px;padding-left:24px;padding-right:24px}
.grid-padding-x>.cell{padding-left:16px;padding-right:16px}
@media (max-width:640px){
  .grid-container{padding-left:18px;padding-right:18px}
  body{font-size:16px}
}

.container{max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:var(--sp) 0}
.section--tight{padding:calc(var(--sp) * .68) 0}
.section--paper{background:#FFFFFF}
.section--soft{background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%)}
.section-head{max-width:780px;margin-bottom:46px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--brand);background:var(--brand-light);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow i{font-size:12px}
.section-head h2{font-size:clamp(26px,3.4vw,38px);letter-spacing:-.01em}
.section-head p{margin-top:14px;color:var(--ink-soft);font-size:16.5px;line-height:1.85}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .28s ease;
}
.site-header.scrolled{box-shadow:0 10px 30px rgba(30,50,45,.09)}
.nav-wrap{display:flex;align-items:center;gap:18px;min-height:var(--nav-h)}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(150deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;box-shadow:0 8px 18px rgba(20,82,70,.24);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:17px;color:var(--brand-deep);letter-spacing:.01em}
.logo-text span{font-size:11.5px;color:var(--ink-soft);letter-spacing:.14em}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-menu a{
  display:inline-flex;align-items:center;
  padding:9px 14px;border-radius:999px;
  font-size:15px;color:var(--ink-soft);white-space:nowrap;
}
.nav-menu a:hover{background:var(--brand-light);color:var(--brand-dark)}
.nav-menu a.active{background:var(--brand-light);color:var(--brand-dark);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-actions .btn{height:42px;padding:0 18px;font-size:14.5px}
.hamburger{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:12px;color:var(--brand-dark);align-items:center;justify-content:center;
  font-size:18px;cursor:pointer;margin-left:auto;
}
@media (max-width:1080px){
  .nav-menu{
    position:fixed;left:0;right:0;top:var(--nav-h);bottom:0;
    background:#fff;flex-direction:column;align-items:stretch;gap:6px;
    padding:22px 20px 48px;overflow-y:auto;margin-left:0;
    transform:translateX(100%);transition:transform .3s cubic-bezier(.4,0,.2,1);
    border-top:1px solid var(--line);
  }
  .nav-menu.open{transform:translateX(0)}
  .nav-menu a{padding:15px 14px;font-size:16.5px;border-radius:12px}
  .hamburger{display:inline-flex}
  .nav-actions{display:none}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:50px;padding:0 26px;border-radius:12px;border:1px solid transparent;
  font-size:16px;font-weight:600;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn i{font-size:15px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(20,82,70,.2)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(20,82,70,.26)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(200,121,61,.24)}
.btn-accent:hover{background:#B26A32;color:#fff;transform:translateY(-2px)}
.btn-ghost{background:#fff;color:var(--brand-dark);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-dark);transform:translateY(-2px);box-shadow:var(--sh-m)}
.btn-light{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.35)}
.btn-light:hover{background:rgba(255,255,255,.2);color:#fff;transform:translateY(-2px)}
.btn-block{width:100%}
.btn-sm{height:44px;padding:0 20px;font-size:15px}
.link-arrow{display:inline-flex;align-items:center;gap:7px;font-weight:600;color:var(--brand-dark);border-bottom:1px solid rgba(30,107,92,.32);padding-bottom:2px}
.link-arrow:hover{color:var(--brand);border-color:var(--brand)}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:72px 0 88px;
  background-image:linear-gradient(180deg,rgba(247,244,238,.94) 0%,rgba(247,244,238,.99) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(30,107,92,.08) 0%,rgba(30,107,92,0) 68%);pointer-events:none;
}
.hero-inner{position:relative;z-index:2}
.hero h1{font-size:clamp(32px,4.4vw,52px);letter-spacing:-.015em;margin:6px 0 18px}
.hero-sub{font-size:clamp(16px,1.6vw,18.5px);color:var(--ink-soft);line-height:1.9;max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-cta .btn{flex:0 1 auto}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:36px;
  padding-top:26px;border-top:1px dashed var(--line);
}
.trust-item{display:flex;align-items:flex-start;gap:10px;min-width:190px}
.trust-item i{color:var(--accent);font-size:15px;margin-top:5px}
.trust-item b{display:block;font-size:15px;color:var(--ink)}
.trust-item span{font-size:13.5px;color:var(--ink-soft)}
.hero-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-l);
  box-shadow:var(--sh-l);overflow:hidden;
}
.hero-shot{position:relative;background:var(--brand-light)}
.hero-shot img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-shot::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,62,54,0) 55%,rgba(15,62,54,.34) 100%);
}
.hero-card-body{padding:24px 24px 26px}
.hero-version{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;color:var(--brand-dark);background:var(--brand-light);border-radius:999px;padding:5px 14px 5px 10px}
.hero-version .dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(62,142,110,.16)}
.hero-notes{margin:18px 0 22px;display:grid;gap:11px}
.hero-notes li{display:flex;gap:10px;font-size:15px;color:var(--ink-soft);line-height:1.7}
.hero-notes li i{color:var(--brand);font-size:13px;margin-top:6px}
@media (max-width:1024px){
  .hero{padding:52px 0 64px}
  .hero-sub{max-width:none}
  .hero-card{margin-top:38px}
}
@media (max-width:520px){
  .hero-cta .btn{width:100%}
  .trust-item{min-width:100%}
}

/* ============ 价值板块 ============ */
.value-row{display:flex;align-items:center;gap:52px;padding:38px 0}
.value-row + .value-row{border-top:1px solid var(--line)}
.value-row.reverse{flex-direction:row-reverse}
.value-text{flex:1 1 0;min-width:0}
.value-text h3{font-size:clamp(21px,2.3vw,26px);margin-bottom:14px}
.value-text p{color:var(--ink-soft);font-size:16px;line-height:1.85}
.value-list{margin-top:20px;display:grid;gap:12px}
.value-list li{display:flex;gap:11px;font-size:15.5px;color:var(--ink)}
.value-list li i{color:var(--brand);margin-top:6px;font-size:13px}
.value-media{flex:0 0 46%;max-width:46%}
.value-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-m);box-shadow:var(--sh-m);border:1px solid var(--line)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:56px}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-m);padding:24px 22px;box-shadow:var(--sh-s);transition:transform .22s ease,box-shadow .22s ease}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-m)}
.step em{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:11px;background:var(--brand-light);color:var(--brand-dark);font-style:normal;font-weight:700;font-size:15px;margin-bottom:14px}
.step h4{font-size:17px;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--ink-soft);line-height:1.75}
@media (max-width:1024px){
  .steps{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  .value-row,.value-row.reverse{flex-direction:column;gap:28px;padding:30px 0}
  .value-media{flex:1 1 auto;max-width:100%;width:100%}
}
@media (max-width:520px){
  .steps{grid-template-columns:1fr}
}

/* ============ 截图轮播 ============ */
.carousel-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:34px}
.carousel-nav{display:flex;gap:10px;align-items:center}
.carousel-btn{
  width:46px;height:46px;border-radius:50%;border:1px solid var(--line);background:#fff;
  color:var(--brand-dark);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
  transition:all .2s ease;
}
.carousel-btn:hover{background:var(--brand);color:#fff;border-color:var(--brand);transform:translateY(-2px)}
.shot-track{
  display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 22px;scrollbar-width:none;
}
.shot-track::-webkit-scrollbar{display:none}
.shot-item{
  flex:0 0 clamp(280px,38%,460px);scroll-snap-align:start;margin:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  padding:14px;box-shadow:var(--sh-s);transition:transform .24s ease,box-shadow .24s ease;
}
.shot-item:hover{transform:translateY(-4px);box-shadow:var(--sh-m)}
.shot-item img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-s)}
.shot-item figcaption{padding:14px 6px 4px}
.shot-item figcaption b{display:block;font-size:16px;margin-bottom:6px}
.shot-item figcaption span{font-size:14px;color:var(--ink-soft);line-height:1.7}
.shot-dots{display:flex;gap:8px;justify-content:center;margin-top:8px}
.shot-dot{width:9px;height:9px;border-radius:50%;background:#D6CFC3;border:none;padding:0;cursor:pointer;transition:all .2s ease}
.shot-dot.active{background:var(--brand);width:26px;border-radius:999px}
@media (max-width:640px){
  .shot-item{flex:0 0 84%}
}

/* ============ 系统要求 ============ */
.req-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.req-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  padding:26px 24px;box-shadow:var(--sh-s);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.req-card:hover{transform:translateY(-4px);box-shadow:var(--sh-m);border-color:#D6E7E1}
.req-card header{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.req-card header i{width:40px;height:40px;border-radius:12px;background:var(--brand-light);color:var(--brand-dark);display:inline-flex;align-items:center;justify-content:center;font-size:18px}
.req-card header h3{font-size:19px}
.req-card dl{margin:0;display:grid;gap:16px;flex:1 1 auto}
.req-card dt{font-size:13px;font-weight:600;color:var(--accent);letter-spacing:.04em;margin-bottom:4px}
.req-card dd{margin:0;font-size:14.5px;color:var(--ink-soft);line-height:1.75}
.req-download{
  margin-top:22px;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;border-radius:11px;border:1px solid var(--brand-light);
  background:var(--brand-light);color:var(--brand-dark);font-weight:600;font-size:14.5px;
  transition:all .2s ease;
}
.req-download:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
@media (max-width:1024px){
  .req-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:600px){
  .req-grid{grid-template-columns:1fr}
}

/* ============ 最新信息 ============ */
.news-feature{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  overflow:hidden;box-shadow:var(--sh-s);transition:transform .24s ease,box-shadow .24s ease;
  height:100%;
}
.news-feature:hover{transform:translateY(-4px);box-shadow:var(--sh-m)}
.news-feature-media{display:block;overflow:hidden}
.news-feature-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease}
.news-feature:hover .news-feature-media img{transform:scale(1.04)}
.news-feature-body{padding:24px}
.news-feature-body h3{font-size:20px;margin:14px 0 10px;line-height:1.45}
.news-feature-body h3 a{color:var(--ink)}
.news-feature-body h3 a:hover{color:var(--brand)}
.news-feature-body p{font-size:15px;color:var(--ink-soft);line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;background:var(--brand-light);color:var(--brand-dark);
}
.badge--accent{background:var(--accent-light);color:#8E5222}
.meta{display:flex;align-items:center;gap:14px;margin-top:16px;font-size:13px;color:var(--ink-soft)}
.meta i{font-size:12px;margin-right:5px;color:#9AA39F}
.news-list{display:grid;gap:16px}
.news-item{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  padding:22px 24px;box-shadow:var(--sh-s);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--sh-m);border-color:#D6E7E1}
.news-item h3{font-size:17.5px;margin:10px 0 8px;line-height:1.5;color:var(--ink)}
.news-item:hover h3{color:var(--brand-dark)}
.news-item p{font-size:14.5px;color:var(--ink-soft);line-height:1.78;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-m);
  padding:56px 24px;text-align:center;color:var(--ink-soft);font-size:16px;
}
.empty-state i{display:block;font-size:30px;color:var(--brand-light);margin-bottom:14px}

/* ============ 评价墙 ============ */
.quote-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.quote{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  padding:30px 28px 26px;box-shadow:var(--sh-s);transition:transform .22s ease,box-shadow .22s ease;
}
.quote:hover{transform:translateY(-4px);box-shadow:var(--sh-m)}
.quote::before{
  content:"\201C";position:absolute;top:12px;left:22px;
  font-family:Georgia,serif;font-size:60px;line-height:1;color:rgba(30,107,92,.13);
}
.quote p{position:relative;font-size:16px;line-height:1.85;color:var(--ink);padding-top:26px}
.quote-foot{display:flex;align-items:center;gap:14px;margin-top:22px;padding-top:18px;border-top:1px solid var(--line)}
.quote-foot img{width:46px;height:46px;border-radius:14px;object-fit:cover}
.quote-who{flex:1 1 auto;min-width:0}
.quote-who b{display:block;font-size:15px;color:var(--ink)}
.quote-who span{font-size:13px;color:var(--ink-soft)}
.quote-stars{display:flex;gap:3px;color:var(--accent);font-size:12.5px}
.quote-date{font-size:12.5px;color:#9AA39F;margin-top:4px}
@media (max-width:820px){
  .quote-grid{grid-template-columns:1fr}
}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px;margin:0 auto}
.accordion{border:none;background:transparent}
.accordion .accordion-item{
  background:#fff;border:1px solid var(--line) !important;border-radius:var(--r-m) !important;
  margin-bottom:14px;box-shadow:var(--sh-s);overflow:hidden;
  border-left:4px solid var(--brand) !important;
  transition:box-shadow .22s ease;
}
.accordion .accordion-item:hover{box-shadow:var(--sh-m)}
.accordion .accordion-title{
  padding:20px 56px 20px 26px;font-size:18px;font-weight:600;color:var(--ink);
  border:none;position:relative;line-height:1.6;
}
.accordion .accordion-title:hover{background:transparent;color:var(--brand-dark)}
.accordion .accordion-title::before{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:26px;top:50%;transform:translateY(-50%);
  font-size:15px;color:var(--brand);transition:transform .28s ease;
}
.accordion .accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(45deg)}
.accordion .accordion-content{
  padding:0 26px 24px;border:none !important;color:var(--ink-soft);
  font-size:15px;line-height:1.85;background:#fff;
}
.accordion .accordion-content p + p{margin-top:12px}

/* ============ 下载 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;color:#fff;
  background-color:var(--brand-deep);
  background-image:linear-gradient(120deg,rgba(15,62,54,.94) 0%,rgba(20,82,70,.88) 100%),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
}
.cta-band h2{color:#fff;font-size:clamp(26px,3.2vw,36px)}
.cta-band p{color:rgba(255,255,255,.76);margin-top:14px;max-width:620px;font-size:16px;line-height:1.85}
.dl-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:40px}
.dl-btn{
  display:flex;align-items:center;gap:14px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);
  border-radius:var(--r-m);padding:18px 20px;color:#fff;
  transition:all .22s ease;
}
.dl-btn:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.42);color:#fff;transform:translateY(-3px)}
.dl-btn i{font-size:24px;flex:0 0 auto}
.dl-btn b{display:block;font-size:15.5px}
.dl-btn span{font-size:12.5px;color:rgba(255,255,255,.68)}
.cta-note{margin-top:26px;font-size:13.5px;color:rgba(255,255,255,.6);display:flex;flex-wrap:wrap;gap:8px 26px}
@media (max-width:1024px){
  .dl-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:560px){
  .dl-grid{grid-template-columns:1fr}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.72);padding:66px 0 28px;font-size:14.5px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .logo-mark{box-shadow:none;background:rgba(255,255,255,.12);color:#fff}
.footer-brand b{color:#fff;font-size:17px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.02em}
.site-footer p{line-height:1.85;color:rgba(255,255,255,.68)}
.site-footer ul{display:grid;gap:11px}
.site-footer ul a{color:rgba(255,255,255,.72);font-size:14.5px}
.site-footer ul a:hover{color:#fff}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:12px 26px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5);
}
@media (max-width:1024px){
  .site-footer{padding-top:52px}
  .footer-col{margin-bottom:32px}
}

/* ============ 其它 ============ */
.divider{height:1px;background:var(--line);margin:0}
.skip-link{position:absolute;left:-9999px}
.skip-link:focus{left:16px;top:10px;z-index:200;background:#fff;padding:10px 16px;border-radius:10px;border:1px solid var(--line)}

/* roulang page: article */
:root{
  --brand:#1E6B5C;
  --brand-dark:#145246;
  --brand-light:#DCEBE6;
  --copper:#C8793D;
  --copper-light:#F3DCC9;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --ink:#1D2523;
  --ink-2:#66706C;
  --line:#E5DED3;
  --ok:#3E8E6E;
  --warn:#B4553C;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(30,50,45,.06);
  --sh-2:0 16px 40px rgba(30,50,45,.08);
  --sh-3:0 22px 52px rgba(30,50,45,.16);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --maxw:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
}
body.nav-open{overflow:hidden;}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.005em;}
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:3px;border-radius:6px;}

.grid-container{max-width:var(--maxw);margin:0 auto;padding-left:22px;padding-right:22px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:box-shadow .28s ease,border-color .28s ease;
}
.site-header.is-scrolled{box-shadow:0 12px 32px rgba(30,50,45,.10);border-bottom-color:var(--line);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:22px;height:74px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:18px;white-space:nowrap;}
.logo:hover{color:var(--brand-dark);}
.logo-mark{
  width:38px;height:38px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;font-size:16px;box-shadow:0 8px 18px rgba(30,107,92,.28);flex:0 0 auto;
}
.logo-text{font-family:var(--font-serif);letter-spacing:.02em;}
.nav-menu{display:flex;align-items:center;gap:6px;}
.nav-menu a{
  display:inline-block;padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;color:var(--ink-2);font-weight:500;
  transition:background .2s ease,color .2s ease;
}
.nav-menu a:hover{background:var(--brand-light);color:var(--brand-dark);}
.nav-menu a.active{background:var(--brand-light);color:var(--brand-dark);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;width:46px;height:46px;border-radius:12px;border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:.25s;}
.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);}

.mobile-drawer{
  display:none;position:fixed;inset:74px 0 0 0;background:#fff;z-index:79;
  padding:22px;overflow-y:auto;border-top:1px solid var(--line);
}
.mobile-drawer.open{display:block;animation:drawerIn .22s ease;}
@keyframes drawerIn{from{opacity:0;transform:translateY(-8px);}to{opacity:1;transform:none;}}
.mobile-drawer a{
  display:block;padding:15px 16px;border-radius:var(--r-md);color:var(--ink);font-size:16px;
  border:1px solid transparent;margin-bottom:8px;background:#FBF9F5;
}
.mobile-drawer a:hover{background:var(--brand-light);color:var(--brand-dark);}
.mobile-drawer a.drawer-cta{background:var(--brand);color:#fff;text-align:center;font-weight:600;margin-top:14px;}

.progress-bar{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--brand),var(--copper));z-index:99;transition:width .1s linear;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px rgba(30,107,92,.22);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px rgba(30,107,92,.28);}
.btn-ghost{background:#fff;color:var(--brand-dark);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-dark);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-copper{background:var(--copper);color:#fff;box-shadow:0 10px 22px rgba(200,121,61,.24);}
.btn-copper:hover{background:#B26A31;color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px rgba(200,121,61,.3);}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}

/* ---------- 页面头部 ---------- */
.page-hero{
  position:relative;overflow:hidden;padding:56px 0 46px;
  background-image:linear-gradient(180deg,rgba(247,244,238,.82) 0%,rgba(247,244,238,.96) 68%,var(--bg) 100%),
                   url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;right:-60px;top:-70px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(30,107,92,.10) 0%,rgba(30,107,92,0) 70%);pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:820px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-2);margin-bottom:20px;}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C4BFB5;}
.breadcrumb .current{color:var(--ink);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.cat-badge{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand-dark);font-size:13.5px;font-weight:600;margin-bottom:16px;
}
.cat-badge i{font-size:11px;}
.article-title{font-size:clamp(26px,3.6vw,42px);line-height:1.32;color:var(--ink);font-family:var(--font-serif);}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;margin-top:20px;color:var(--ink-2);font-size:13.5px;}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--brand);font-size:13px;}

/* ---------- 阅读区 ---------- */
.article-main{padding:52px 0 0;}
.reading-wrap{max-width:780px;margin:0 auto;}
.article-content{font-size:17px;line-height:1.9;color:#28312E;}
.article-content > *:first-child{margin-top:0;}
.article-content p{margin:0 0 1.25em;}
.article-content h2{
  font-size:clamp(21px,2.4vw,28px);margin:2.1em 0 .85em;padding-left:14px;border-left:4px solid var(--brand);
  color:var(--ink);font-family:var(--font-serif);
}
.article-content h3{font-size:20px;margin:1.8em 0 .7em;color:var(--brand-dark);}
.article-content h4{font-size:17px;margin:1.5em 0 .6em;color:var(--ink);}
.article-content ul,.article-content ol{margin:0 0 1.35em 0;padding-left:1.3em;}
.article-content ul li{list-style:disc;margin-bottom:.55em;}
.article-content ol li{list-style:decimal;margin-bottom:.55em;}
.article-content li::marker{color:var(--brand);}
.article-content blockquote{
  margin:1.7em 0;padding:18px 24px;background:var(--brand-light);
  border-left:4px solid var(--brand);border-radius:0 var(--r-md) var(--r-md) 0;color:#2C3A35;font-size:16.5px;
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{border-radius:var(--r-md);box-shadow:var(--sh-1);margin:1.7em auto;width:100%;object-fit:cover;}
.article-content figure{margin:1.7em 0;}
.article-content figcaption{font-size:13.5px;color:var(--ink-2);text-align:center;margin-top:10px;}
.article-content table{width:100%;border-collapse:collapse;margin:1.7em 0;font-size:15px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;}
.article-content th{background:var(--brand-light);color:var(--brand-dark);text-align:left;padding:12px 14px;font-weight:600;}
.article-content td{padding:12px 14px;border-top:1px solid var(--line);color:#2C3A35;}
.article-content pre{background:#16211E;color:#DCEBE6;padding:18px 20px;border-radius:var(--r-md);overflow:auto;font-size:14px;line-height:1.7;margin:1.7em 0;}
.article-content code{background:#EFF3F1;color:var(--brand-dark);padding:2px 7px;border-radius:6px;font-size:14.5px;}
.article-content pre code{background:none;color:inherit;padding:0;}
.article-content hr{border:0;height:1px;background:var(--line);margin:2.2em 0;}
.article-content a{border-bottom:1px solid rgba(30,107,92,.35);}
.article-content a:hover{border-bottom-color:var(--brand-dark);color:var(--brand-dark);}

.article-tags{max-width:780px;margin:44px auto 0;padding-top:26px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.article-tags .tag-label{font-size:13.5px;color:var(--ink-2);margin-right:4px;}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);color:var(--ink-2);font-size:13.5px;
  transition:.2s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand-dark);background:var(--brand-light);}

/* ---------- 空态 ---------- */
.empty-state{
  max-width:780px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:48px 32px;text-align:center;box-shadow:var(--sh-1);
}
.empty-state .empty-icon{
  width:64px;height:64px;border-radius:20px;background:var(--brand-light);color:var(--brand-dark);
  display:inline-flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:18px;
}
.empty-state h2{font-size:24px;margin-bottom:10px;}
.empty-state p{color:var(--ink-2);font-size:15.5px;margin-bottom:24px;}
.empty-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;}

/* ---------- 区块通用 ---------- */
.section{padding:72px 0;}
.section-head{max-width:680px;margin-bottom:34px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:600;
  color:var(--copper);letter-spacing:.04em;margin-bottom:12px;
}
.section-head h2{font-size:clamp(24px,2.8vw,34px);font-family:var(--font-serif);margin-bottom:12px;}
.section-head p{color:var(--ink-2);font-size:16px;}

/* ---------- 相关推荐 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.related-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);height:100%;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D7CFC0;}
.related-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#E8E3D9;}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.related-card:hover .related-thumb img{transform:scale(1.05);}
.related-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.related-body .mini-meta{font-size:13px;color:var(--ink-2);display:flex;gap:14px;}
.related-body h3{font-size:18px;line-height:1.5;}
.related-body h3 a{color:var(--ink);}
.related-body h3 a:hover{color:var(--brand);}
.related-body p{font-size:14.5px;color:var(--ink-2);line-height:1.7;}
.related-more{margin-top:auto;font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.related-card:hover .related-more i{transform:translateX(4px);}
.related-more i{transition:transform .25s ease;}

/* ---------- 下载 CTA ---------- */
.cta-band{background:var(--brand-dark);color:#fff;border-radius:var(--r-lg);padding:50px 44px;position:relative;overflow:hidden;}
.cta-band::before{
  content:"";position:absolute;right:-80px;bottom:-100px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.10) 0%,rgba(255,255,255,0) 70%);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:30px;align-items:center;justify-content:space-between;}
.cta-copy{max-width:560px;}
.cta-copy h2{font-size:clamp(24px,2.6vw,32px);color:#fff;margin-bottom:12px;font-family:var(--font-serif);}
.cta-copy p{color:rgba(255,255,255,.78);font-size:16px;}
.cta-buttons{display:flex;flex-wrap:wrap;gap:14px;}
.cta-buttons .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4);}
.cta-buttons .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.cta-facts{display:flex;flex-wrap:wrap;gap:26px;margin-top:26px;position:relative;z-index:2;}
.cta-facts div{font-size:13.5px;color:rgba(255,255,255,.72);display:flex;align-items:center;gap:8px;}
.cta-facts i{color:var(--copper-light);}

/* ---------- 页脚 ---------- */
.site-footer{background:#16211E;color:rgba(255,255,255,.72);margin-top:80px;padding:66px 0 26px;}
.site-footer .footer-col{margin-bottom:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;margin-bottom:14px;}
.footer-brand .logo-mark{box-shadow:none;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:300px;}
.site-footer ul li{margin-bottom:10px;}
.site-footer ul a{color:rgba(255,255,255,.7);font-size:14px;}
.site-footer ul a:hover{color:#fff;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,.1);margin-top:26px;padding-top:22px;font-size:13.5px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .nav-menu{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn{display:none;}
  .section{padding:60px 0;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{padding:40px 30px;}
}
@media screen and (max-width:768px){
  .grid-container{padding-left:18px;padding-right:18px;}
  .page-hero{padding:40px 0 34px;}
  .article-main{padding:36px 0 0;}
  .article-content{font-size:16.5px;line-height:1.85;}
  .related-grid{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-buttons{width:100%;}
  .cta-buttons .btn{flex:1 1 100%;}
  .site-footer{padding-top:50px;}
}
@media screen and (max-width:520px){
  .header-inner{height:66px;}
  .mobile-drawer{inset:66px 0 0 0;}
  .logo{font-size:16.5px;}
  .logo-mark{width:34px;height:34px;border-radius:10px;font-size:14px;}
  .article-title{font-size:25px;line-height:1.38;}
  .article-meta{gap:8px 14px;font-size:13px;}
  .empty-state{padding:34px 20px;}
  .empty-actions .btn{width:100%;}
  .cta-band{padding:32px 22px;border-radius:var(--r-md);}
  .article-tags{gap:8px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --primary:#1E6B5C;
  --primary-dark:#145246;
  --primary-light:#DCEBE6;
  --accent:#C8793D;
  --accent-light:#F3DCC9;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --ink:#1D2523;
  --muted:#66706C;
  --line:#E5DED3;
  --ok:#3E8E6E;
  --warn:#B4553C;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(30,50,45,.06);
  --sh-2:0 16px 40px rgba(30,50,45,.08);
  --sh-3:0 22px 48px rgba(30,50,45,.14);
  --gap-section:104px;
}

*,*::before,*::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; }

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{ max-width:100%; display:block; }
a{ color:var(--primary); text-decoration:none; transition:color .2s ease; }
a:hover{ color:var(--primary-dark); }
ul,ol{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ margin:0; line-height:1.32; font-weight:700; letter-spacing:.2px; }
p{ margin:0 0 1.2em; }
button{ font-family:inherit; }

.grid-container{
  max-width:1200px;
  padding-left:20px;
  padding-right:20px;
}

::selection{ background:var(--primary-light); color:var(--primary-dark); }

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 24px;
  border-radius:12px;
  font-size:16px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease, border-color .2s ease;
  white-space:nowrap;
}
.btn i{ font-size:15px; }
.btn-primary{ background:var(--primary); color:#fff; }
.btn-primary:hover{ background:var(--primary-dark); color:#fff; transform:translateY(-2px); box-shadow:var(--sh-2); }
.btn-ghost{ background:#fff; color:var(--primary); border-color:var(--primary); }
.btn-ghost:hover{ background:var(--primary-light); color:var(--primary-dark); transform:translateY(-2px); box-shadow:var(--sh-2); }
.btn-accent{ background:var(--accent); color:#fff; }
.btn-accent:hover{ background:#B26A31; color:#fff; transform:translateY(-2px); box-shadow:var(--sh-2); }
.btn-sm{ min-height:42px; padding:0 18px; font-size:15px; border-radius:10px; }
.btn:focus-visible,
a:focus-visible,
button:focus-visible{ outline:3px solid rgba(30,107,92,.42); outline-offset:2px; border-radius:10px; }

.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  border-bottom:1px solid rgba(30,107,92,.32);
  padding-bottom:2px;
}
.link-more:hover{ color:var(--primary-dark); border-bottom-color:var(--primary-dark); }
.link-more i{ font-size:12px; transition:transform .2s ease; }
.link-more:hover i{ transform:translateX(3px); }

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{ box-shadow:var(--sh-2); }
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:74px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--ink);
}
.brand:hover{ color:var(--ink); }
.logo-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:12px;
  background:linear-gradient(145deg,var(--primary),var(--primary-dark));
  color:#fff;
  font-size:16px;
  box-shadow:var(--sh-1);
}
.brand-text{
  font-size:19px;
  font-weight:700;
  letter-spacing:.4px;
  font-family:"Noto Serif SC","Songti SC","PingFang SC",serif;
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
  flex-wrap:wrap;
}
.nav-menu a{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 14px;
  border-radius:var(--r-pill);
  font-size:15px;
  color:var(--muted);
  font-weight:500;
  transition:color .2s ease, background-color .2s ease;
}
.nav-menu a:hover{ color:var(--primary-dark); background:var(--primary-light); }
.nav-menu a.active{ color:var(--primary-dark); background:var(--primary-light); font-weight:700; }
.nav-menu a.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:4px;
  transform:translateX(-50%);
  width:20px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
}
.header-actions{ display:flex; align-items:center; gap:10px; flex:0 0 auto; }
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--primary-dark);
  font-size:18px;
  cursor:pointer;
}
.nav-toggle:hover{ background:var(--primary-light); }

/* ---------- 频道 Hero ---------- */
.hero-cat{
  position:relative;
  padding:88px 0 76px;
  background-image:linear-gradient(180deg,rgba(247,244,238,.94),rgba(247,244,238,.99)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero-cat::after{
  content:"";
  position:absolute;
  right:-120px;
  top:-120px;
  width:420px;
  height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(30,107,92,.08),rgba(30,107,92,0) 68%);
  pointer-events:none;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 16px;
  border-radius:var(--r-pill);
  background:#fff;
  border:1px solid var(--line);
  color:var(--primary-dark);
  font-size:13.5px;
  font-weight:600;
  box-shadow:var(--sh-1);
  margin-bottom:20px;
}
.hero-badge i{ color:var(--accent); }
.hero-cat h1{
  font-size:clamp(30px,4vw,46px);
  margin-bottom:18px;
  font-family:"Noto Serif SC","Songti SC","PingFang SC",serif;
  color:var(--ink);
}
.hero-sub{
  font-size:17.5px;
  color:var(--muted);
  max-width:620px;
  margin-bottom:28px;
}
.hero-actions{ display:flex; flex-wrap:wrap; gap:12px; margin-bottom:26px; }
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:12px 26px;
  font-size:13.5px;
  color:var(--muted);
}
.hero-meta span{ display:inline-flex; align-items:center; gap:7px; }
.hero-meta i{ color:var(--primary); font-size:13px; }

.hero-visual{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:18px;
  box-shadow:var(--sh-2);
}
.hero-visual img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-md);
}
.hero-visual .visual-note{
  display:flex;
  align-items:center;
  gap:10px;
  padding-top:14px;
  font-size:13.5px;
  color:var(--muted);
}
.hero-visual .visual-note i{ color:var(--accent); }

/* ---------- 频道锚点导航 ---------- */
.channel-bar{
  background:var(--card);
  border-bottom:1px solid var(--line);
}
.channel-inner{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  padding:14px 0;
}
.channel-inner .channel-label{
  font-size:13.5px;
  color:var(--muted);
  margin-right:4px;
}
.channel-inner a{
  display:inline-flex;
  align-items:center;
  min-height:38px;
  padding:0 16px;
  border-radius:var(--r-pill);
  background:var(--bg);
  border:1px solid var(--line);
  font-size:14px;
  color:var(--muted);
  font-weight:500;
}
.channel-inner a:hover{ background:var(--primary-light); border-color:var(--primary-light); color:var(--primary-dark); }
.channel-inner a.is-current{ background:var(--primary); border-color:var(--primary); color:#fff; }

/* ---------- 通用板块 ---------- */
.section{ padding:var(--gap-section) 0; }
.section-tight{ padding:72px 0; }
.section-head{ max-width:760px; margin-bottom:44px; }
.section-head .eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:1px;
  color:var(--accent);
  margin-bottom:12px;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);
  margin-bottom:14px;
  font-family:"Noto Serif SC","Songti SC","PingFang SC",serif;
}
.section-head p{ color:var(--muted); margin:0; }

/* ---------- 置顶说明 ---------- */
.pin-wrap{ margin-top:-46px; position:relative; z-index:5; }
.pin-card{
  display:flex;
  gap:22px;
  align-items:flex-start;
  background:var(--card);
  border:1px solid var(--line);
  border-left:5px solid var(--accent);
  border-radius:var(--r-md);
  padding:26px 28px;
  box-shadow:var(--sh-2);
}
.pin-tag{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:var(--accent-light);
  color:#8C4E1F;
  font-size:13px;
  font-weight:700;
}
.pin-body h3{ font-size:19px; margin-bottom:8px; }
.pin-body p{ margin:0; color:var(--muted); font-size:15.5px; }

/* ---------- 快速核对要点 ---------- */
.point-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.point-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px 26px 24px;
  box-shadow:var(--sh-1);
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.point-card:hover{ transform:translateY(-4px); box-shadow:var(--sh-3); border-color:var(--primary-light); }
.point-card .pc-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:46px;
  height:46px;
  border-radius:14px;
  background:var(--primary-light);
  color:var(--primary-dark);
  font-size:18px;
  margin-bottom:16px;
}
.point-card h3{ font-size:19px; margin-bottom:10px; }
.point-card p{ margin:0; color:var(--muted); font-size:15.5px; }

/* ---------- 时间线 ---------- */
.timeline{
  position:relative;
  padding-left:38px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:11px;
  top:12px;
  bottom:12px;
  width:2px;
  background:linear-gradient(180deg,var(--primary),rgba(30,107,92,.14));
  border-radius:2px;
}
.timeline-item{ position:relative; margin-bottom:26px; }
.timeline-item:last-child{ margin-bottom:0; }
.timeline-dot{
  position:absolute;
  left:-34px;
  top:26px;
  width:14px;
  height:14px;
  border-radius:50%;
  background:#fff;
  border:3px solid var(--primary);
  box-shadow:0 0 0 4px rgba(30,107,92,.10);
}
.timeline-card{
  display:flex;
  gap:24px;
  align-items:center;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px 26px;
  box-shadow:var(--sh-1);
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.timeline-card:hover{ transform:translateY(-3px); box-shadow:var(--sh-3); border-color:var(--primary-light); }
.timeline-main{ flex:1 1 auto; min-width:0; }
.timeline-meta{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:10px;
  font-size:13.5px;
  color:var(--muted);
}
.badge{
  display:inline-flex;
  align-items:center;
  padding:3px 12px;
  border-radius:var(--r-pill);
  background:var(--primary-light);
  color:var(--primary-dark);
  font-size:12.5px;
  font-weight:600;
}
.badge-soft{ background:var(--accent-light); color:#8C4E1F; }
.timeline-main h3{ font-size:20px; margin-bottom:10px; }
.timeline-main h3 a{ color:var(--ink); }
.timeline-main h3 a:hover{ color:var(--primary-dark); }
.timeline-main p{ margin:0 0 14px; color:var(--muted); font-size:15.5px; }
.timeline-thumb{
  flex:0 0 208px;
  border-radius:var(--r-sm);
  overflow:hidden;
  border:1px solid var(--line);
}
.timeline-thumb img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .35s ease;
}
.timeline-card:hover .timeline-thumb img{ transform:scale(1.05); }

/* ---------- 步骤条 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  counter-reset:step;
}
.step-item{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:28px 22px 24px;
  box-shadow:var(--sh-1);
}
.step-item::before{
  counter-increment:step;
  content:"0" counter(step);
  position:absolute;
  top:-16px;
  left:22px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:32px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--primary-dark);
  color:#fff;
  font-size:13px;
  font-weight:700;
  letter-spacing:.5px;
  font-variant-numeric:tabular-nums;
}
.step-item h3{ font-size:17.5px; margin:12px 0 8px; }
.step-item p{ margin:0; font-size:15px; color:var(--muted); }

/* ---------- 深色 CTA ---------- */
.cta-block{
  background:var(--primary-dark);
  border-radius:var(--r-lg);
  padding:52px 44px;
  color:#fff;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:40px;
  align-items:center;
  position:relative;
  overflow:hidden;
}
.cta-block::after{
  content:"";
  position:absolute;
  right:-90px;
  bottom:-110px;
  width:320px;
  height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(200,121,61,.28),rgba(200,121,61,0) 70%);
  pointer-events:none;
}
.cta-block h2{
  font-size:clamp(24px,2.6vw,32px);
  margin-bottom:14px;
  color:#fff;
  font-family:"Noto Serif SC","Songti SC","PingFang SC",serif;
}
.cta-block p{ color:rgba(255,255,255,.82); margin:0; font-size:16px; }
.download-grid{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:14px; position:relative; z-index:2; }
.dl-btn{
  display:flex;
  align-items:center;
  gap:12px;
  padding:14px 16px;
  border-radius:14px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.20);
  color:#fff;
  transition:background-color .2s ease, transform .2s ease, border-color .2s ease;
}
.dl-btn:hover{ background:rgba(255,255,255,.16); border-color:rgba(255,255,255,.4); color:#fff; transform:translateY(-2px); }
.dl-btn i{ font-size:20px; color:var(--accent-light); }
.dl-btn b{ display:block; font-size:15px; }
.dl-btn small{ display:block; font-size:12.5px; color:rgba(255,255,255,.7); font-variant-numeric:tabular-nums; }

/* ---------- FAQ ---------- */
.faq-list.accordion{ background:transparent; border:0; }
.faq-list .accordion-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  margin-bottom:14px;
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:box-shadow .25s ease, border-color .25s ease;
}
.faq-list .accordion-item.is-active{ border-color:var(--primary-light); box-shadow:var(--sh-2); }
.faq-list .accordion-title{
  position:relative;
  display:block;
  padding:20px 62px 20px 24px;
  font-size:18px;
  font-weight:600;
  color:var(--ink);
  border:0;
  border-left:4px solid var(--primary);
  background:transparent;
  line-height:1.55;
}
.faq-list .accordion-title:hover{ background:rgba(220,235,230,.42); color:var(--primary-dark); }
.faq-list .accordion-title::before{
  content:"+";
  position:absolute;
  right:24px;
  top:20px;
  font-size:22px;
  line-height:1;
  color:var(--primary);
  transition:transform .25s ease;
}
.faq-list .accordion-title[aria-expanded="true"]::before{ transform:rotate(45deg); }
.faq-list .accordion-content{
  padding:0 24px 22px 28px;
  border:0;
  background:transparent;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.8;
}
.faq-list .accordion-content p:last-child{ margin-bottom:0; }

/* ---------- 页脚 ---------- */
.site-footer{
  background:#123F36;
  color:rgba(255,255,255,.74);
  padding:68px 0 26px;
  margin-top:var(--gap-section);
}
.site-footer .footer-col{ margin-bottom:30px; }
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:18px;
  margin-bottom:14px;
  font-family:"Noto Serif SC","Songti SC","PingFang SC",serif;
}
.footer-brand .logo-mark{ background:rgba(255,255,255,.14); box-shadow:none; }
.site-footer p{ font-size:14.5px; color:rgba(255,255,255,.66); margin:0; line-height:1.8; }
.site-footer h4{
  font-size:15.5px;
  color:#fff;
  margin-bottom:16px;
  font-weight:600;
}
.site-footer ul li{ margin-bottom:10px; }
.site-footer ul a{
  font-size:14.5px;
  color:rgba(255,255,255,.72);
  border-bottom:1px solid transparent;
  padding-bottom:1px;
}
.site-footer ul a:hover{ color:#fff; border-bottom-color:rgba(255,255,255,.5); }
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.14);
  padding-top:22px;
  margin-top:14px;
  font-size:13.5px;
  color:rgba(255,255,255,.58);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{ --gap-section:76px; }
  .header-inner{ gap:14px; }
  .nav-menu{ gap:2px; }
  .nav-menu a{ padding:0 11px; font-size:14.5px; }
  .hero-cat{ padding:64px 0 60px; }
  .hero-visual{ margin-top:34px; }
  .steps{ grid-template-columns:repeat(2,minmax(0,1fr)); gap:26px 18px; }
  .cta-block{ grid-template-columns:1fr; padding:44px 32px; }
}

@media (max-width:900px){
  .nav-toggle{ display:inline-flex; }
  .nav-menu{
    display:none;
    position:fixed;
    left:0;
    right:0;
    top:74px;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:16px 20px 24px;
    background:#fff;
    border-bottom:1px solid var(--line);
    box-shadow:var(--sh-2);
    max-height:calc(100vh - 74px);
    overflow-y:auto;
    margin-left:0;
  }
  .nav-menu.is-open{ display:flex; }
  .nav-menu a{ min-height:48px; padding:0 16px; font-size:16px; border-radius:12px; }
  .nav-menu a.active::after{ display:none; }
  .header-actions .btn{ display:none; }
}

@media (max-width:768px){
  body{ font-size:16px; line-height:1.85; }
  .hero-sub{ font-size:16px; }
  .point-grid{ grid-template-columns:1fr; }
  .timeline{ padding-left:28px; }
  .timeline::before{ left:7px; }
  .timeline-dot{ left:-27px; top:24px; }
  .timeline-card{ flex-direction:column; align-items:stretch; gap:16px; padding:20px; }
  .timeline-thumb{ flex:none; width:100%; }
  .pin-card{ flex-direction:column; gap:14px; padding:22px; }
  .download-grid{ grid-template-columns:1fr; }
  .footer-bottom{ flex-direction:column; }
}

@media (max-width:520px){
  :root{ --gap-section:60px; }
  .grid-container{ padding-left:16px; padding-right:16px; }
  .brand-text{ font-size:17px; }
  .hero-cat h1{ font-size:28px; }
  .hero-actions .btn{ width:100%; }
  .channel-inner a{ font-size:13.5px; padding:0 13px; }
  .steps{ grid-template-columns:1fr; }
  .step-item{ padding:26px 20px 22px; }
  .cta-block{ padding:34px 22px; border-radius:var(--r-md); }
  .faq-list .accordion-title{ font-size:16.5px; padding:17px 54px 17px 18px; }
  .faq-list .accordion-content{ padding:0 18px 18px 22px; font-size:15px; }
  .timeline-main h3{ font-size:18px; }
  .site-footer{ padding:52px 0 22px; }
}

/* roulang page: category2 */
:root{
  --brand:#1E6B5C;
  --brand-deep:#145246;
  --brand-light:#DCEBE6;
  --accent:#C8793D;
  --accent-light:#F3DCC9;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --ink:#1D2523;
  --ink-2:#66706C;
  --line:#E5DED3;
  --ok:#3E8E6E;
  --warn:#B4553C;
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:24px;
  --shadow-s:0 1px 2px rgba(30,50,45,.06);
  --shadow-m:0 10px 26px rgba(30,50,45,.08);
  --shadow-l:0 16px 40px rgba(30,50,45,.12);
  --gap:24px;
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  font-variant-numeric:tabular-nums;
}

img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}

h1,h2,h3,h4{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,sans-serif;
  color:var(--ink);
  margin:0;
  line-height:1.32;
  font-weight:700;
  letter-spacing:-.01em;
}

h1{font-size:clamp(30px,4.4vw,52px);}
h2{font-size:clamp(24px,3vw,36px);}
h3{font-size:clamp(19px,1.6vw,23px);}

:focus-visible{outline:3px solid rgba(30,107,92,.35);outline-offset:2px;border-radius:6px;}

.grid-container{max-width:1200px;}

.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--paper{background:var(--bg);}
.section--white{background:#fff;}

.section-head{max-width:780px;margin-bottom:44px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--ink-2);font-size:16.5px;margin:0;}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  font-weight:600;
  color:var(--brand);
  background:var(--brand-light);
  padding:6px 14px;
  border-radius:999px;
  margin-bottom:18px;
  letter-spacing:.02em;
}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  height:50px;
  padding:0 24px;
  border-radius:12px;
  font-size:16px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn i{font-size:15px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(30,107,92,.22);}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(30,107,92,.28);}
.btn-ghost{background:#fff;color:var(--brand);border-color:rgba(30,107,92,.32);box-shadow:var(--shadow-s);}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-deep);border-color:var(--brand);transform:translateY(-2px);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(200,121,61,.24);}
.btn-accent:hover{background:#b06a30;color:#fff;transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--brand-deep);}
.btn-light:hover{background:#eaf6f2;color:var(--brand-deep);transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;transform:translateY(-2px);}
.btn-block{width:100%;}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:600;
  font-size:15.5px;
  color:var(--brand);
  border-bottom:1px solid rgba(30,107,92,.28);
  padding-bottom:2px;
}
.link-arrow:hover{color:var(--brand-deep);border-color:var(--brand-deep);gap:12px;}

/* 标签、徽章 */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  font-weight:600;
  padding:4px 12px;
  border-radius:999px;
  background:var(--brand-light);
  color:var(--brand-deep);
  line-height:1.6;
}
.tag-accent{background:var(--accent-light);color:#96562a;}
.tag-plain{background:#F1EDE5;color:var(--ink-2);}

.meta-line{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:13.5px;
  color:var(--ink-2);
}
.meta-line .dot{width:4px;height:4px;border-radius:50%;background:#C9C2B6;display:inline-block;}

/* 顶部导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 28px rgba(30,50,45,.09);}
.nav-inner{
  display:flex;
  align-items:center;
  gap:22px;
  min-height:76px;
}
.brand{
  display:flex;
  align-items:center;
  gap:11px;
  font-size:19px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:-.01em;
  flex:0 0 auto;
}
.brand:hover{color:var(--brand-deep);}
.logo-mark{
  width:40px;height:40px;
  border-radius:13px;
  background:linear-gradient(140deg,#2A8A75,var(--brand-deep));
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  flex:0 0 auto;
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-menu a{
  padding:9px 15px;
  border-radius:999px;
  font-size:15px;
  color:var(--ink-2);
  font-weight:500;
  transition:background-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.nav-menu a:hover{background:var(--brand-light);color:var(--brand-deep);}
.nav-menu a.active{background:var(--brand-light);color:var(--brand-deep);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-actions .btn{height:44px;padding:0 18px;font-size:15px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  font-size:17px;
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.nav-backdrop{
  position:fixed;
  inset:0;
  background:rgba(20,40,35,.42);
  opacity:0;
  visibility:hidden;
  transition:opacity .28s ease,visibility .28s ease;
  z-index:75;
}
.nav-backdrop.is-open{opacity:1;visibility:visible;}

/* Hero */
.page-hero{
  position:relative;
  padding:76px 0 72px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(118deg,rgba(247,244,238,.97) 0%,rgba(247,244,238,.9) 48%,rgba(220,235,230,.76) 100%);
}
.page-hero .grid-container{position:relative;z-index:1;}
.hero-copy{padding-right:8px;}
.hero-sub{
  font-size:17.5px;
  color:#4A534F;
  max-width:620px;
  margin:20px 0 30px;
  line-height:1.85;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px 20px;
  margin-bottom:36px;
}
.trust-bar{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  gap:12px 34px;
  padding-top:26px;
  border-top:1px solid rgba(30,107,92,.16);
}
.trust-bar li{display:flex;flex-direction:column;gap:2px;}
.trust-bar b{font-size:17px;color:var(--brand-deep);font-weight:700;}
.trust-bar span{font-size:13px;color:var(--ink-2);line-height:1.6;}

.hero-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  padding:30px 28px;
  box-shadow:var(--shadow-l);
}
.hero-card-head{margin-bottom:20px;}
.hero-card-title{
  font-size:24px;
  font-weight:700;
  margin:12px 0 6px;
  color:var(--ink);
}
.hero-card-head p{font-size:14px;color:var(--ink-2);margin:0;}
.hero-card-list{list-style:none;margin:0 0 22px;border-top:1px solid var(--line);}
.hero-card-list li{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  padding:12px 0;
  border-bottom:1px solid var(--line);
  font-size:15px;
  color:var(--ink-2);
}
.hero-card-list li b{color:var(--ink);font-weight:600;}
.hero-card-note{font-size:13px;color:var(--ink-2);margin:14px 0 0;line-height:1.75;}

/* 筛选与卡片网格 */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:34px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:42px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-2);
  font-size:14.5px;
  font-weight:500;
  cursor:pointer;
  transition:all .2s ease;
}
.chip:hover{border-color:rgba(30,107,92,.4);color:var(--brand-deep);transform:translateY(-2px);}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(30,107,92,.22);}

.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  height:100%;
  box-shadow:var(--shadow-s);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-l);border-color:rgba(30,107,92,.22);}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#EDE8DF;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:20px;margin-bottom:10px;line-height:1.42;}
.card-body h3 a{color:var(--ink);}
.card-body h3 a:hover{color:var(--brand-deep);}
.card-body p{font-size:15px;color:var(--ink-2);line-height:1.8;margin:0 0 18px;}
.card-foot{
  margin-top:auto;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding-top:16px;
  border-top:1px solid var(--line);
}
.card-foot .meta-line{font-size:13px;}
.card-cell{margin-bottom:30px;}

/* 侧栏 */
.side-col{display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  padding:24px 22px;
  box-shadow:var(--shadow-s);
}
.side-card h3{font-size:18px;margin-bottom:14px;}
.side-card p{font-size:14.5px;color:var(--ink-2);line-height:1.8;}
.side-card--deep{
  background:linear-gradient(150deg,#1B5F52,#123B33);
  border-color:transparent;
  color:#fff;
  box-shadow:0 18px 40px rgba(20,60,50,.24);
}
.side-card--deep h3{color:#fff;}
.side-card--deep p{color:rgba(255,255,255,.78);}
.side-card--deep .side-rows{border-top-color:rgba(255,255,255,.18);}
.side-card--deep .side-rows li{border-bottom-color:rgba(255,255,255,.18);color:rgba(255,255,255,.78);}
.side-card--deep .side-rows li b{color:#fff;}
.side-rows{list-style:none;margin:0 0 20px;border-top:1px solid var(--line);}
.side-rows li{
  display:flex;
  justify-content:space-between;
  gap:10px;
  padding:11px 0;
  border-bottom:1px solid var(--line);
  font-size:14.5px;
  color:var(--ink-2);
}
.side-rows li b{color:var(--ink);font-weight:600;}
.check-list{list-style:none;margin:0;}
.check-list li{
  position:relative;
  padding-left:26px;
  margin-bottom:12px;
  font-size:14.5px;
  color:var(--ink-2);
  line-height:1.8;
}
.check-list li:last-child{margin-bottom:0;}
.check-list li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  left:0;
  top:1px;
  font-size:12.5px;
  color:var(--ok);
}
.side-card--deep .check-list li{color:rgba(255,255,255,.8);}
.side-card--deep .check-list li::before{color:#8FD6C3;}

/* 步骤 */
.steps-wrap{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:26px;
}
.step-card{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  padding:30px 26px 28px;
  box-shadow:var(--shadow-s);
  transition:transform .25s ease,box-shadow .25s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:46px;height:46px;
  border-radius:14px;
  background:var(--brand-light);
  color:var(--brand-deep);
  font-size:18px;
  font-weight:700;
  margin-bottom:18px;
}
.step-card h3{font-size:19px;margin-bottom:10px;}
.step-card p{font-size:15px;color:var(--ink-2);line-height:1.8;margin:0;}

/* 校验图文 */
.split-media{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:48px;
  align-items:center;
}
.split-media img{
  width:100%;
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-l);
  aspect-ratio:4/3;
  object-fit:cover;
}
.split-text h2{margin-bottom:16px;}
.split-text > p{color:var(--ink-2);font-size:16.5px;margin-bottom:22px;}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}

/* FAQ */
.faq-list{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  padding:8px 28px;
  box-shadow:var(--shadow-s);
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  position:relative;
  width:100%;
  background:none;
  border:0;
  text-align:left;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:18px;
  padding:24px 0 24px 22px;
  font-size:18px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  line-height:1.6;
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;
  top:26px;
  bottom:26px;
  width:3px;
  border-radius:3px;
  background:var(--brand-light);
  transition:background-color .25s ease;
}
.faq-item.open .faq-q::before{background:var(--brand);}
.faq-q i{
  flex:0 0 auto;
  margin-top:6px;
  font-size:15px;
  color:var(--brand);
  transition:transform .3s ease;
}
.faq-item.open .faq-q i{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease;}
.faq-item.open .faq-a{max-height:420px;}
.faq-a-inner{padding:0 44px 24px 22px;font-size:15px;color:var(--ink-2);line-height:1.88;}

/* 下载 CTA */
.download-panel{
  background:linear-gradient(150deg,#1B5F52 0%,#123B33 100%);
  border-radius:var(--radius-l);
  padding:58px 52px 46px;
  color:#fff;
  box-shadow:0 26px 60px rgba(18,59,51,.28);
}
.download-panel h2{color:#fff;margin-bottom:14px;}
.download-panel > div > p.lead{color:rgba(255,255,255,.78);font-size:16.5px;max-width:720px;margin:0;}
.download-grid{margin-top:36px;}
.dl-btn{
  display:flex;
  align-items:center;
  gap:14px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius-m);
  padding:16px 18px;
  color:#fff;
  transition:transform .22s ease,background-color .22s ease,border-color .22s ease;
  height:100%;
}
.dl-btn:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.4);color:#fff;transform:translateY(-3px);}
.dl-btn i{font-size:22px;color:#8FD6C3;flex:0 0 auto;}
.dl-btn b{display:block;font-size:15.5px;font-weight:600;}
.dl-btn span{display:block;font-size:12.5px;color:rgba(255,255,255,.66);}
.dl-cell{margin-bottom:16px;}
.download-note{
  margin:26px 0 0;
  font-size:13.5px;
  color:rgba(255,255,255,.62);
  border-top:1px solid rgba(255,255,255,.14);
  padding-top:20px;
  line-height:1.8;
}

/* 页脚 */
.site-footer{
  background:#12302A;
  color:rgba(255,255,255,.72);
  padding:74px 0 28px;
}
.footer-col{margin-bottom:34px;}
.footer-brand{
  display:flex;
  align-items:center;
  gap:11px;
  margin-bottom:16px;
  color:#fff;
  font-size:18px;
  font-weight:700;
}
.footer-brand .logo-mark{
  width:38px;height:38px;
  border-radius:12px;
  background:linear-gradient(140deg,#2A8A75,#145246);
  font-size:15px;
}
.footer-col h4{color:#fff;font-size:16px;margin:0 0 16px;font-weight:600;}
.footer-col ul{list-style:none;}
.footer-col li{margin-bottom:11px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:15px;}
.footer-col a:hover{color:#8FD6C3;}
.footer-col p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.6);margin:0;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  border-top:1px solid rgba(255,255,255,.12);
  margin-top:38px;
  padding-top:22px;
  font-size:13.5px;
  color:rgba(255,255,255,.5);
}

/* 响应式 */
@media (max-width:1024px){
  .nav-toggle{display:inline-flex;}
  .nav-actions{margin-left:auto;}
  .nav-actions .btn-ghost{display:none;}
  .nav-menu{
    position:fixed;
    top:0;
    right:0;
    width:min(320px,86vw);
    height:100vh;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:92px 20px 28px;
    margin-left:0;
    transform:translateX(106%);
    transition:transform .32s ease;
    box-shadow:-14px 0 44px rgba(30,50,45,.16);
    overflow-y:auto;
    z-index:90;
  }
  .nav-menu.is-open{transform:translateX(0);}
  .nav-menu a{padding:14px 16px;font-size:16px;border-radius:12px;}
  .split-media{grid-template-columns:1fr;gap:28px;}
  .steps-wrap{grid-template-columns:1fr 1fr;}
  .download-panel{padding:44px 32px 36px;}
  .side-col{position:static;}
}
@media (min-width:1025px){
  .side-sticky{position:sticky;top:98px;}
  .nav-backdrop{display:none;}
}
@media (max-width:768px){
  body{font-size:16.5px;line-height:1.85;}
  .section{padding:64px 0;}
  .section--tight{padding:52px 0;}
  .page-hero{padding:52px 0 48px;}
  .hero-sub{font-size:16.5px;margin:16px 0 24px;}
  .trust-bar{gap:14px 26px;}
  .hero-card{padding:24px 20px;margin-top:34px;}
  .steps-wrap{grid-template-columns:1fr;}
  .faq-list{padding:4px 18px;}
  .faq-q{font-size:16.5px;padding:20px 0 20px 18px;}
  .faq-a-inner{padding:0 16px 20px 18px;}
  .download-panel{padding:36px 22px 30px;border-radius:var(--radius-m);}
  .footer-bottom{flex-direction:column;gap:6px;}
}
@media (max-width:520px){
  h1{font-size:27px;}
  .brand{font-size:16.5px;}
  .logo-mark{width:36px;height:36px;border-radius:11px;}
  .hero-actions .btn{width:100%;}
  .link-arrow{width:100%;justify-content:flex-start;}
  .filter-bar{gap:8px;}
  .chip{height:40px;padding:0 15px;font-size:14px;}
  .card-body{padding:18px 18px 20px;}
  .site-footer{padding:56px 0 24px;}
}

/* roulang page: category3 */
:root{
  --brand:#1E6B5C;
  --brand-dark:#145246;
  --brand-light:#DCEBE6;
  --accent:#C8793D;
  --accent-light:#F3DCC9;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --ink:#1D2523;
  --ink-2:#66706C;
  --line:#E5DED3;
  --ok:#3E8E6E;
  --warn:#B4553C;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --shadow-1:0 1px 2px rgba(30,50,45,.06);
  --shadow-2:0 16px 40px rgba(30,50,45,.08);
  --shadow-3:0 22px 50px rgba(30,50,45,.14);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","PingFang SC",serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700;letter-spacing:.2px;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(30,107,92,.4);outline-offset:2px;border-radius:8px;}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:box-shadow .28s ease,border-color .28s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 32px rgba(30,50,45,.09);border-bottom-color:var(--line);}
.header-inner{display:flex;align-items:center;gap:24px;height:76px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  color:#fff;display:grid;place-items:center;font-size:16px;
  box-shadow:0 8px 18px rgba(30,107,92,.28);
}
.brand-text{font-family:var(--font-serif);font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.4px;white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-menu a{
  font-size:15px;color:var(--ink-2);padding:9px 14px;border-radius:999px;
  transition:background .2s ease,color .2s ease;white-space:nowrap;
}
.nav-menu a:hover{color:var(--brand-dark);background:var(--brand-light);}
.nav-menu a.active{color:var(--brand-dark);background:var(--brand-light);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--brand-dark);font-size:18px;cursor:pointer;
  place-items:center;transition:.2s;
}
.nav-toggle:hover{background:var(--brand-light);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:12px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px rgba(30,107,92,.22);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(30,107,92,.3);}
.btn-outline{background:#fff;color:var(--brand-dark);border-color:#CBDCD6;}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(30,50,45,.1);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 22px rgba(200,121,61,.24);}
.btn-accent:hover{background:#B26A31;color:#fff;transform:translateY(-2px);}
.btn-light{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.34);}
.btn-light:hover{background:rgba(255,255,255,.22);color:#fff;transform:translateY(-2px);}
.btn-block{width:100%;}

/* ============ 页面首屏 ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:56px 0 68px;
  background:linear-gradient(180deg,#F2EDE3 0%,#F7F4EE 100%);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  opacity:.16;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-140px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(30,107,92,.10),rgba(30,107,92,0) 68%);
}
.page-hero .wrap{position:relative;z-index:2;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);}
.crumbs a{color:var(--ink-2);}
.crumbs a:hover{color:var(--brand-dark);}
.crumbs .sep{color:#BFC8C4;}
.crumbs .cur{color:var(--brand-dark);font-weight:600;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin:18px 0 16px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:7px 14px;font-size:13px;color:var(--brand-dark);box-shadow:var(--shadow-1);
}
.page-hero h1{
  font-family:var(--font-serif);
  font-size:clamp(30px,4.4vw,48px);
  line-height:1.28;max-width:900px;color:var(--ink);
}
.hero-lead{max-width:760px;margin-top:18px;font-size:17px;color:var(--ink-2);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:38px;}
.hero-stats li{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:16px 18px;box-shadow:var(--shadow-1);}
.hero-stats b{display:block;font-family:var(--font-serif);font-size:22px;color:var(--brand-dark);font-variant-numeric:tabular-nums;}
.hero-stats span{font-size:13px;color:var(--ink-2);line-height:1.6;display:block;margin-top:2px;}

/* ============ 主体三栏 ============ */
.layout{
  display:grid;
  grid-template-columns:216px minmax(0,1fr) 316px;
  gap:32px;align-items:start;
  padding:72px 0 88px;
}
.side-title{font-size:13px;color:var(--ink-2);letter-spacing:.08em;margin-bottom:12px;font-weight:600;}
.side-nav{position:sticky;top:96px;}
.side-nav ul li a{
  display:block;padding:10px 14px;font-size:15px;color:var(--ink-2);
  border-left:2px solid var(--line);transition:.2s ease;
}
.side-nav ul li a:hover{
  border-left-color:var(--brand);color:var(--brand-dark);
  background:var(--brand-light);border-radius:0 10px 10px 0;
}

.content section{scroll-margin-top:104px;}
.content section + section{margin-top:52px;padding-top:52px;border-top:1px solid var(--line);}
.content section > h2{font-size:clamp(24px,2.6vw,30px);margin-bottom:16px;}
.content section > h2::before{
  content:"";display:inline-block;width:10px;height:10px;border-radius:3px;
  background:var(--accent);margin-right:10px;transform:translateY(-2px) rotate(45deg);
}
.content p{color:var(--ink-2);}

.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:26px;}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px;box-shadow:var(--shadow-1);transition:.24s ease;}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.step-no{
  display:inline-block;font-family:var(--font-serif);font-size:13px;color:var(--accent);
  background:var(--accent-light);border-radius:999px;padding:2px 12px;margin-bottom:12px;font-weight:700;
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:15px;margin:0;}

.spec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:26px;}
.spec-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px;box-shadow:var(--shadow-1);}
.spec-card h3{font-size:17px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.spec-card h3 .tag{font-size:12px;font-weight:600;padding:2px 10px;border-radius:999px;}
.tag-base{background:#F0EEE8;color:var(--ink-2);}
.tag-rec{background:var(--brand-light);color:var(--brand-dark);}
.spec-list{display:grid;gap:10px;}
.spec-item{
  display:grid;grid-template-columns:92px minmax(0,1fr);gap:14px;
  padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-sm);background:#FCFBF8;
}
.spec-key{font-size:13px;color:var(--ink-2);}
.spec-val{font-size:15px;color:var(--ink);font-variant-numeric:tabular-nums;}

.platform-media{border-radius:var(--r-md);overflow:hidden;margin-bottom:18px;border:1px solid var(--line);}
.platform-media img{width:100%;height:180px;object-fit:cover;}

.note-card{
  margin-top:22px;background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand);
  border-radius:var(--r-md);padding:22px 24px;box-shadow:var(--shadow-1);
}
.note-card h3{font-size:16px;margin-bottom:12px;}
.note-card ul{display:grid;gap:10px;}
.note-card ul li{position:relative;padding-left:20px;font-size:15px;color:var(--ink-2);}
.note-card ul li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;
  background:var(--brand);transform:rotate(45deg);
}

.data-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:26px;}
.data-cell{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:20px;text-align:left;box-shadow:var(--shadow-1);}
.data-cell b{display:block;font-family:var(--font-serif);font-size:24px;color:var(--brand-dark);font-variant-numeric:tabular-nums;}
.data-cell span{font-size:14px;color:var(--ink-2);}

.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:26px;}
.check-item{
  display:flex;gap:14px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:18px;box-shadow:var(--shadow-1);transition:.22s ease;
}
.check-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.check-item i{color:var(--warn);font-size:18px;margin-top:5px;flex:0 0 auto;}
.check-item h3{font-size:16px;margin-bottom:6px;}
.check-item p{font-size:14px;margin:0;}

.timeline{margin-top:26px;display:grid;gap:0;}
.tl-item{position:relative;padding:0 0 26px 28px;border-left:2px solid var(--line);}
.tl-item:last-child{border-left-color:transparent;padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-7px;top:6px;width:12px;height:12px;border-radius:50%;
  background:#fff;border:3px solid var(--brand);
}
.tl-date{font-size:13px;color:var(--ink-2);font-variant-numeric:tabular-nums;}
.tl-item h3{font-size:17px;margin:6px 0 8px;}
.tl-item p{font-size:15px;margin-bottom:10px;}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;}
.tl-meta .badge{background:var(--brand-light);color:var(--brand-dark);border-radius:999px;padding:3px 12px;}
.tl-meta a{font-size:13px;border-bottom:1px solid rgba(30,107,92,.35);padding-bottom:1px;}

/* ============ 右侧栏 ============ */
.side-aside{position:sticky;top:96px;display:grid;gap:20px;}
.aside-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--shadow-1);
}
.aside-card h2{font-size:17px;margin-bottom:10px;}
.aside-card p{font-size:14px;color:var(--ink-2);}
.aside-download img{width:100%;height:140px;object-fit:cover;border-radius:var(--r-md);margin-bottom:16px;}
.dl-list{display:grid;gap:8px;margin:14px 0 18px;}
.dl-list li{
  display:flex;justify-content:space-between;align-items:center;
  font-size:14px;color:var(--ink-2);padding:9px 12px;background:#FAF8F4;
  border:1px solid var(--line);border-radius:var(--r-sm);
}
.dl-list li b{color:var(--brand-dark);font-variant-numeric:tabular-nums;}
.aside-card .btn + .btn{margin-top:10px;}
.summary-list{display:grid;gap:10px;margin-top:6px;}
.summary-list li{font-size:14px;color:var(--ink-2);display:flex;gap:10px;}
.summary-list li i{color:var(--brand);margin-top:5px;flex:0 0 auto;font-size:13px;}
.summary-list li b{color:var(--ink);font-weight:600;}

/* ============ 宽幅区块 ============ */
.band{padding:84px 0;}
.band-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:780px;margin-bottom:38px;}
.section-head h2{font-size:clamp(26px,3vw,34px);}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px;}
.section-head .eyebrow{margin:0 0 14px;}

.compare-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.compare-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:20px;overflow:hidden;box-shadow:var(--shadow-1);transition:.26s ease;
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.compare-card img{width:100%;height:148px;object-fit:cover;}
.compare-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1;}
.compare-body h3{font-size:18px;}
.compare-body p{font-size:14px;color:var(--ink-2);margin:0;}
.mini-spec{display:grid;gap:6px;font-size:13px;color:var(--ink-2);}
.mini-spec li{display:flex;justify-content:space-between;gap:10px;border-bottom:1px dashed var(--line);padding-bottom:6px;}
.mini-spec li span:last-child{color:var(--ink);font-variant-numeric:tabular-nums;}
.compare-body .link{font-size:14px;font-weight:600;margin-top:auto;border-bottom:1px solid rgba(30,107,92,.35);align-self:flex-start;padding-bottom:1px;}

/* ============ FAQ ============ */
.faq-list{margin-top:8px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:0 22px;margin-bottom:14px;transition:.24s ease;
}
.faq-item[open]{box-shadow:var(--shadow-2);}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:20px 40px 20px 18px;font-size:18px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;border-radius:3px;background:var(--brand);
}
.faq-item summary::after{
  content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);
  font-size:22px;color:var(--brand);font-weight:400;transition:transform .24s ease;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);}
.faq-body{padding:0 0 22px 18px;font-size:15px;line-height:1.85;color:var(--ink-2);}
.faq-body p{margin-bottom:.9em;}

/* ============ 下载 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(140deg,#12483E 0%,#145246 40%,#1E6B5C 100%);
  border-radius:var(--r-lg);padding:52px 48px;box-shadow:var(--shadow-3);
}
.cta-band::after{
  content:"";position:absolute;right:-100px;bottom:-140px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(200,121,61,.28),rgba(200,121,61,0) 70%);
}
.cta-inner{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(24px,3vw,34px);color:#fff;}
.cta-band p{max-width:660px;margin-top:14px;color:rgba(255,255,255,.82);font-size:16px;}
.dl-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:32px;}
.dl-btn{
  display:flex;align-items:center;gap:14px;padding:18px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);
  border-radius:var(--r-md);color:#fff;transition:.24s ease;
}
.dl-btn:hover{background:rgba(255,255,255,.18);color:#fff;transform:translateY(-3px);}
.dl-btn i{font-size:22px;color:var(--accent-light);}
.dl-btn b{display:block;font-size:15px;}
.dl-btn span{display:block;font-size:12.5px;color:rgba(255,255,255,.72);font-variant-numeric:tabular-nums;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}

/* ============ 页脚 ============ */
.site-footer{background:#10231F;color:#C9D6D1;margin-top:96px;padding:64px 0 28px;font-size:15px;}
.site-footer .grid-container{max-width:1200px;padding-left:24px;padding-right:24px;}
.footer-col{margin-bottom:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;color:#fff;font-size:17px;}
.footer-brand .logo-mark{width:34px;height:34px;border-radius:10px;font-size:14px;}
.site-footer .footer-col p{font-size:14px;line-height:1.8;color:#9DB0AA;margin:0;}
.site-footer .footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.site-footer .footer-col ul li{margin-bottom:10px;}
.site-footer .footer-col ul li a{font-size:14px;color:#A9BAB4;}
.site-footer .footer-col ul li a:hover{color:#fff;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  border-top:1px solid rgba(255,255,255,.12);margin-top:20px;padding-top:22px;
  font-size:13px;color:#8FA39D;
}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .layout{grid-template-columns:minmax(0,1fr) 300px;}
  .side-nav{grid-column:1 / -1;position:static;margin-bottom:8px;}
  .side-nav .side-title{margin-bottom:10px;}
  .side-nav ul{display:flex;gap:8px;overflow-x:auto;padding-bottom:8px;}
  .side-nav ul li a{
    border-left:0;border:1px solid var(--line);border-radius:999px;
    background:#fff;white-space:nowrap;padding:8px 16px;font-size:14px;
  }
}
@media (max-width:900px){
  .header-inner{height:68px;gap:12px;}
  .nav-toggle{display:grid;}
  .header-actions .btn-outline{display:none;}
  .nav-menu{
    position:fixed;top:68px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;padding:14px 20px 24px;
    box-shadow:0 24px 44px rgba(30,50,45,.16);
    opacity:0;transform:translateY(-12px);pointer-events:none;
    transition:.24s ease;max-height:calc(100vh - 68px);overflow:auto;
    border-bottom:1px solid var(--line);margin-left:0;
  }
  .nav-menu.is-open{opacity:1;transform:none;pointer-events:auto;}
  .nav-menu a{padding:13px 14px;font-size:16px;border-radius:12px;}
  .steps,.spec-grid,.check-grid,.data-row{grid-template-columns:1fr;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .compare-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .dl-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:820px){
  .layout{grid-template-columns:minmax(0,1fr);padding:48px 0 64px;gap:28px;}
  .side-aside{position:static;}
  .band{padding:60px 0;}
  .cta-band{padding:36px 24px;border-radius:20px;}
}
@media (max-width:560px){
  body{font-size:16px;line-height:1.8;}
  .wrap{padding:0 18px;}
  .page-hero{padding:40px 0 52px;}
  .hero-stats{grid-template-columns:1fr;}
  .compare-grid{grid-template-columns:1fr;}
  .dl-grid{grid-template-columns:1fr;}
  .hero-actions .btn,.cta-actions .btn{width:100%;}
  .brand-text{font-size:16px;}
  .spec-item{grid-template-columns:1fr;gap:4px;}
  .faq-item summary{font-size:16px;padding-right:34px;}
}

/* roulang page: category4 */
:root{
  --c-primary:#1E6B5C;
  --c-primary-dark:#145246;
  --c-primary-light:#DCEBE6;
  --c-accent:#C8793D;
  --c-accent-light:#F3DCC9;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --ink:#1D2523;
  --ink-2:#66706C;
  --line:#E5DED3;
  --ok:#3E8E6E;
  --warn:#B4553C;
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(30,50,45,.06);
  --sh-2:0 16px 40px rgba(30,50,45,.08);
  --sh-hover:0 22px 48px rgba(30,50,45,.14);
  --sp-section:110px;
  --sp-section-sm:64px;
}

*,*::before,*::after{box-sizing:border-box;}

html{scroll-behavior:smooth;}

body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{max-width:100%;height:auto;display:block;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--c-primary);text-decoration:none;text-underline-offset:3px;transition:color .22s ease;}
a:hover{color:var(--c-primary-dark);}
button{font-family:inherit;}
strong,b{font-weight:700;}
table{border-collapse:collapse;width:100%;}

.grid-container{max-width:1200px;padding-left:20px;padding-right:20px;}

.section{padding:var(--sp-section) 0;}
.section--tight{padding:72px 0;}
.section--paper{background:var(--bg);}
.section--white{background:#fff;}

.section-head{max-width:760px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;font-weight:600;
  color:var(--c-primary);background:var(--c-primary-light);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:16px;
}
.section-head h2{
  font-size:clamp(26px,3.2vw,38px);
  line-height:1.35;
  font-weight:700;
  letter-spacing:-.01em;
  margin-bottom:14px;
}
.section-head p{color:var(--ink-2);font-size:16.5px;line-height:1.9;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:box-shadow .28s ease,border-color .28s ease;
}
.site-header.is-stuck{
  box-shadow:0 10px 28px rgba(30,50,45,.08);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:20px;height:76px;
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-size:19px;font-weight:700;color:var(--ink);
  flex:0 0 auto;white-space:nowrap;
}
.brand:hover{color:var(--c-primary-dark);}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(140deg,#2A8168,var(--c-primary-dark));
  color:#fff;display:grid;place-items:center;font-size:16px;
  box-shadow:0 6px 14px rgba(20,82,70,.22);
}
.nav-menu{
  display:flex;align-items:center;gap:2px;
  margin:0 auto;
}
.nav-menu a{
  display:inline-flex;align-items:center;
  padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--ink-2);
  white-space:nowrap;
  transition:background .22s ease,color .22s ease;
}
.nav-menu a:hover{background:var(--c-primary-light);color:var(--c-primary-dark);}
.nav-menu a.active{
  background:var(--c-primary-light);color:var(--c-primary-dark);font-weight:700;
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:12px;
  font-size:16px;font-weight:600;border:1px solid transparent;
  cursor:pointer;text-align:center;
  transition:background .24s ease,color .24s ease,transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.btn i{font-size:15px;}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px rgba(30,107,92,.2);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(20,82,70,.26);}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 8px 20px rgba(200,121,61,.22);}
.btn-accent:hover{background:#B26A32;color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(178,106,50,.28);}
.btn-ghost{background:#fff;border-color:rgba(30,107,92,.32);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-light);border-color:var(--c-primary);color:var(--c-primary-dark);transform:translateY(-2px);}
.btn-onDark{background:var(--c-accent);color:#fff;}
.btn-onDark:hover{background:#B26A32;color:#fff;transform:translateY(-2px);}
.btn-outlineLight{background:transparent;border-color:rgba(255,255,255,.5);color:#fff;}
.btn-outlineLight:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;transform:translateY(-2px);}
.btn:focus-visible{outline:3px solid rgba(30,107,92,.38);outline-offset:2px;}
.btn-sm{height:42px;padding:0 18px;font-size:15px;border-radius:10px;}
.btn-block{width:100%;}

.nav-toggle{
  display:none;width:46px;height:46px;border-radius:12px;
  border:1px solid var(--line);background:#fff;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  margin-left:auto;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:.25s;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.nav-toggle:focus-visible{outline:3px solid rgba(30,107,92,.38);outline-offset:2px;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;background:#fff;
  border-bottom:1px solid var(--line);
  padding:74px 0 86px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.16;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(247,244,238,.62) 0%,rgba(247,244,238,.94) 62%,#F7F4EE 100%);
}
.page-hero .grid-container{position:relative;z-index:2;}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--ink-2);margin-bottom:22px;
}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--c-primary-dark);font-weight:600;}

.hero-grid{align-items:center;}
.hero-copy h1{
  font-family:"Noto Serif SC","Songti SC",serif;
  font-size:clamp(32px,4.4vw,52px);
  line-height:1.26;
  font-weight:700;
  letter-spacing:-.015em;
  margin-bottom:20px;
}
.hero-copy .lead{
  font-size:18px;line-height:1.9;color:var(--ink-2);
  max-width:560px;margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-actions .btn{height:52px;padding:0 28px;}
.hero-note{
  display:inline-flex;align-items:center;gap:10px;
  font-size:14px;color:var(--ink-2);
  background:rgba(255,255,255,.8);
  border:1px solid var(--line);border-radius:var(--r-pill);
  padding:8px 16px;
}
.hero-note i{color:var(--c-primary);}

.hero-visual{position:relative;padding:12px;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-l);
  box-shadow:var(--sh-2);
  border:1px solid rgba(255,255,255,.7);
}
.hero-float{
  position:absolute;left:-6px;bottom:26px;
  display:flex;align-items:center;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  padding:14px 18px;box-shadow:var(--sh-2);max-width:290px;
}
.hero-float i{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  background:var(--c-primary-light);color:var(--c-primary-dark);
  display:grid;place-items:center;font-size:17px;
}
.hero-float b{display:block;font-size:15px;line-height:1.4;}
.hero-float span{display:block;font-size:13px;color:var(--ink-2);line-height:1.5;}

.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  margin-top:56px;padding-top:32px;border-top:1px solid var(--line);
}
.hero-stats .stat b{
  display:block;font-size:26px;line-height:1.2;
  color:var(--c-primary-dark);font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}
.hero-stats .stat span{display:block;font-size:13.5px;color:var(--ink-2);margin-top:4px;line-height:1.6;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px;margin:0 auto;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-left:3px solid var(--c-primary);
  border-radius:var(--r-m);
  margin-bottom:14px;
  overflow:hidden;
  transition:box-shadow .26s ease,transform .26s ease;
}
.faq-item:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.faq-item.is-open{box-shadow:var(--sh-2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:none;border:0;cursor:pointer;
  font-size:18px;font-weight:600;color:var(--ink);text-align:left;line-height:1.6;
}
.faq-q:hover{color:var(--c-primary-dark);}
.faq-q:focus-visible{outline:3px solid rgba(30,107,92,.35);outline-offset:-4px;border-radius:var(--r-m);}
.faq-icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  background:var(--c-primary-light);color:var(--c-primary-dark);
  display:grid;place-items:center;font-size:13px;
  transition:transform .3s ease,background .3s ease,color .3s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--c-primary);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .36s ease;}
.faq-a .faq-a-inner{
  padding:0 24px 24px 24px;
  font-size:15.5px;line-height:1.9;color:var(--ink-2);
  border-top:1px dashed var(--line);
  padding-top:16px;margin-top:-2px;
}
.faq-a .faq-a-inner strong{color:var(--ink);}
.faq-a .faq-a-inner a{font-weight:600;border-bottom:1px solid rgba(30,107,92,.35);}

/* ---------- 图文列表 ---------- */
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:44px 0;
}
.feature-row + .feature-row{border-top:1px solid var(--line);}
.feature-row.reverse .feature-media{order:2;}
.feature-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-l);box-shadow:var(--sh-2);
}
.feature-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:var(--r-pill);
  background:var(--c-primary-light);color:var(--c-primary-dark);
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.feature-body h3{
  font-size:clamp(21px,2.3vw,26px);line-height:1.45;font-weight:700;
  margin-bottom:14px;
}
.feature-body > p{color:var(--ink-2);font-size:16.5px;line-height:1.9;margin-bottom:20px;}
.check-list li{
  position:relative;padding-left:30px;margin-bottom:12px;
  font-size:16px;line-height:1.8;color:var(--ink);
}
.check-list li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:1px;
  width:20px;height:20px;border-radius:50%;
  background:var(--c-primary-light);color:var(--c-primary-dark);
  font-size:10px;display:grid;place-items:center;
}
.check-list li span{color:var(--ink-2);font-size:14.5px;display:block;line-height:1.75;}

/* ---------- 流程步骤 ---------- */
.steps-band{
  background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);gap:26px;
}
.step{
  position:relative;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  padding:28px 24px 26px;
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(30,107,92,.28);}
.step .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:14px;
  background:var(--c-primary);color:#fff;
  font-weight:700;font-size:16px;font-variant-numeric:tabular-nums;
  margin-bottom:18px;
}
.step h3{font-size:18px;font-weight:700;margin-bottom:10px;line-height:1.5;}
.step p{font-size:15px;color:var(--ink-2);line-height:1.85;}

/* ---------- 下载按钮组 ---------- */
.download-band{
  background:var(--c-primary-dark);
  color:#fff;position:relative;overflow:hidden;
}
.download-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  opacity:.14;
}
.download-band .grid-container{position:relative;z-index:2;}
.download-band .section-head h2{color:#fff;}
.download-band .section-head p{color:rgba(255,255,255,.78);}
.download-band .eyebrow{background:rgba(255,255,255,.14);color:#fff;}

.dl-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.dl-card{
  display:flex;flex-direction:column;gap:14px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-m);
  padding:24px 22px;
  transition:transform .26s ease,background .26s ease,border-color .26s ease;
}
.dl-card:hover{transform:translateY(-4px);background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.32);}
.dl-card .dl-top{display:flex;align-items:center;gap:12px;}
.dl-card .dl-top i{
  width:42px;height:42px;border-radius:12px;flex:0 0 auto;
  background:rgba(255,255,255,.14);color:#fff;
  display:grid;place-items:center;font-size:18px;
}
.dl-card b{font-size:17px;display:block;line-height:1.4;}
.dl-card .dl-meta{font-size:13px;color:rgba(255,255,255,.72);line-height:1.7;}
.dl-card .dl-meta span{display:block;}
.dl-card .btn{margin-top:auto;height:44px;font-size:15px;border-radius:10px;}

.dl-foot{
  margin-top:32px;display:flex;flex-wrap:wrap;align-items:center;gap:16px;
  font-size:14px;color:rgba(255,255,255,.72);
}
.dl-foot i{color:var(--c-accent-light);}

/* ---------- 收尾 CTA ---------- */
.closing{
  background:#fff;border-top:1px solid var(--line);
}
.closing-box{
  display:grid;grid-template-columns:1.4fr 1fr;gap:44px;align-items:center;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-l);
  padding:44px 46px;
}
.closing-box h2{font-size:clamp(23px,2.6vw,30px);line-height:1.4;margin-bottom:14px;}
.closing-box p{color:var(--ink-2);font-size:16.5px;line-height:1.9;}
.closing-actions{display:flex;flex-direction:column;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#171F1D;color:rgba(255,255,255,.72);padding:72px 0 28px;}
.site-footer .footer-col{margin-bottom:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand b{color:#fff;font-size:18px;font-weight:700;}
.footer-brand .logo-mark{background:linear-gradient(140deg,#2A8168,var(--c-primary));}
.site-footer p{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.62);max-width:320px;}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:.02em;}
.site-footer ul li{margin-bottom:10px;}
.site-footer ul li a{color:rgba(255,255,255,.7);font-size:14.5px;}
.site-footer ul li a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding-top:22px;margin-top:14px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13.5px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--sp-section:80px;}
  .nav-toggle{display:flex;}
  .header-actions{display:none;}
  .nav-menu{
    position:fixed;top:76px;left:0;right:0;
    height:calc(100vh - 76px);
    background:#fff;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:18px 20px 48px;
    overflow-y:auto;
    border-top:1px solid var(--line);
    box-shadow:0 26px 44px rgba(30,50,45,.14);
    transform:translateY(-10px);
    opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .25s ease,transform .25s ease,visibility .25s;
    margin:0;
  }
  .nav-menu.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:none;}
  .nav-menu a{padding:14px 16px;font-size:16.5px;border-radius:12px;justify-content:flex-start;}
  .hero-grid .hero-visual{margin-top:40px;}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:24px;margin-top:44px;}
  .feature-row{grid-template-columns:1fr;gap:28px;padding:36px 0;}
  .feature-row.reverse .feature-media{order:0;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .dl-grid{grid-template-columns:repeat(2,1fr);}
  .closing-box{grid-template-columns:1fr;gap:28px;padding:36px 30px;}
  .closing-actions{flex-direction:row;flex-wrap:wrap;}
}

@media (max-width:767px){
  :root{--sp-section:var(--sp-section-sm);}
  body{font-size:16px;line-height:1.85;}
  .header-inner{height:68px;gap:12px;}
  .brand{font-size:17px;}
  .logo-mark{width:34px;height:34px;border-radius:10px;font-size:15px;}
  .nav-menu{top:68px;height:calc(100vh - 68px);}
  .page-hero{padding:52px 0 62px;}
  .hero-copy .lead{font-size:16.5px;margin-bottom:24px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;}
  .hero-float{left:12px;right:12px;bottom:16px;max-width:none;}
  .hero-visual{padding:0 0 74px;}
  .faq-q{font-size:16.5px;padding:18px 18px;}
  .faq-a .faq-a-inner{padding:14px 18px 20px;}
  .steps{grid-template-columns:1fr;}
  .dl-grid{grid-template-columns:1fr;}
  .closing-actions{flex-direction:column;}
  .closing-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;}
}

@media (max-width:520px){
  .hero-stats{grid-template-columns:1fr;gap:18px;}
  .hero-stats .stat b{font-size:23px;}
  .closing-box{padding:28px 22px;}
}