/* roulang page: index */
:root{
  --c-primary:#0F4C42;
  --c-primary-hover:#0B3A33;
  --c-accent:#FF6B35;
  --c-accent-soft:#FFE7DC;
  --c-ink:#14181A;
  --c-ink-2:#4E5854;
  --c-line:#E4E1D8;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-dark:#0B1210;
  --c-success:#1F8A70;
  --c-warning:#E0A800;
  --c-error:#D13B2E;
  --sh-1:0 1px 2px rgba(20,24,26,.04),0 8px 24px rgba(20,24,26,.06);
  --sh-2:0 12px 32px rgba(20,24,26,.12);
  --r-sm:6px;--r-md:12px;--r-lg:16px;--r-xl:20px;--r-xl2:24px;--r-pill:999px;
  --container:1200px;
  --f-sans:-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--c-bg);color:var(--c-ink);
  font-family:var(--f-sans);font-size:17px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-lg);}
a{color:var(--c-primary);text-decoration:none;}
a:hover{color:var(--c-primary-hover);}
h1,h2,h3,h4{margin:0;color:var(--c-ink);line-height:1.25;font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
::selection{background:var(--c-accent-soft);color:var(--c-ink);}

.idx-container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media screen and (min-width:1024px){.idx-container{padding:0 40px;}}
@media screen and (min-width:1440px){.idx-container{max-width:1440px;}}

.idx-section{padding:72px 0;}
@media screen and (min-width:1024px){.idx-section{padding:112px 0;}}
.section-head{margin-bottom:34px;max-width:760px;}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--c-primary);text-transform:uppercase;margin-bottom:14px;
}
.section-kicker::before{content:"";width:24px;height:2px;background:var(--c-accent);border-radius:2px;}
.section-title{font-size:clamp(24px,3vw,36px);font-weight:700;letter-spacing:-.01em;}
.section-desc{margin-top:14px;color:var(--c-ink-2);font-size:16px;max-width:640px;}
.bg-surface{background:var(--c-surface);}
.bg-canvas{background:var(--c-bg);}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:14px 28px;border-radius:var(--r-md);border:1.5px solid transparent;
  font-size:16px;font-weight:600;cursor:pointer;transition:all .22s ease;text-align:center;line-height:1.2;
}
.btn-primary{background:var(--c-accent);color:#14181A;border-radius:var(--r-pill);}
.btn-primary:hover{background:#F45A20;color:#14181A;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:#FFFFFF;border-color:rgba(255,255,255,.55);border-radius:var(--r-pill);}
.btn-ghost:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-2px);}
.btn-outline{background:transparent;color:var(--c-ink);border-color:var(--c-ink);border-radius:var(--r-pill);}
.btn-outline:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-2px);}
.btn-block{width:100%;}
.btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,button:focus-visible{
  outline:2px solid rgba(255,107,53,.45);outline-offset:2px;
}
.text-link{font-weight:600;font-size:15px;color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;}
.text-link span{display:inline-block;transition:transform .22s ease;}
.text-link:hover span{transform:translateX(4px);}

/* header */
.site-header{position:fixed;top:22px;left:0;right:0;z-index:80;transition:top .24s ease;}
.site-header.is-scrolled{top:10px;}
.nav-shell{
  display:flex;align-items:center;gap:20px;
  max-width:var(--container);margin:0 auto;padding:12px 20px;
  background:rgba(255,255,255,.74);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(20,24,26,.08);border-radius:var(--r-pill);box-shadow:var(--sh-1);
  transition:padding .24s ease,box-shadow .24s ease;
}
.site-header.is-scrolled .nav-shell{padding:8px 20px;box-shadow:var(--sh-2);}
.brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--c-ink);letter-spacing:-.01em;white-space:nowrap;}
.brand:hover{color:var(--c-primary);}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:800;letter-spacing:0;
}
.main-nav{display:none;align-items:center;gap:4px;margin-left:12px;flex:1;}
@media screen and (min-width:1024px){.main-nav{display:flex;}}
.main-nav a{
  position:relative;padding:9px 14px;border-radius:var(--r-pill);font-size:15.5px;font-weight:600;color:var(--c-ink-2);
  transition:background .2s ease,color .2s ease;
}
.main-nav a:hover{background:rgba(15,76,66,.08);color:var(--c-primary);}
.main-nav a.active{color:var(--c-primary);}
.main-nav a.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--c-accent);
}
.nav-cta{display:none;padding:11px 22px;min-height:44px;font-size:15px;}
@media screen and (min-width:1024px){.nav-cta{display:inline-flex;}}
.nav-toggle{
  margin-left:auto;display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 11px;border:1px solid var(--c-line);border-radius:var(--r-pill);
  background:#fff;cursor:pointer;
}
.nav-toggle span{display:block;height:2px;background:var(--c-ink);border-radius:2px;transition:transform .24s ease,opacity .24s ease;}
@media screen and (min-width:1024px){.nav-toggle{display:none;}}
.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);}
.mobile-drawer{
  display:none;max-width:var(--container);margin:12px auto 0;padding:18px 20px;
  background:rgba(255,255,255,.96);backdrop-filter:blur(14px);
  border:1px solid rgba(20,24,26,.08);border-radius:var(--r-xl2);box-shadow:var(--sh-2);
}
.mobile-drawer.is-open{display:block;}
@media screen and (min-width:1024px){.mobile-drawer.is-open{display:none;}}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:10px 4px;
  font-size:16px;font-weight:600;color:var(--c-ink);border-bottom:1px solid var(--c-line);
}
.mobile-drawer a:last-of-type{border-bottom:0;}
.mobile-drawer .btn{margin-top:14px;}

/* hero */
.hero{
  position:relative;display:flex;align-items:center;min-height:78vh;padding:150px 0 84px;color:#fff;
  background-image:linear-gradient(105deg,rgba(11,18,16,.92) 0%,rgba(11,18,16,.74) 48%,rgba(11,18,16,.36) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero h1{color:#fff;font-size:clamp(34px,6vw,76px);font-weight:800;letter-spacing:-.02em;line-height:1.1;}
.hero-sub{margin-top:22px;font-size:clamp(16px,1.5vw,19px);line-height:1.8;color:rgba(255,255,255,.82);max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:26px;margin-top:44px;padding-top:26px;border-top:1px solid rgba(255,255,255,.16);}
.hero-meta div{min-width:120px;}
.hero-meta b{display:block;font-size:26px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;}
.hero-meta span{font-size:13.5px;color:rgba(255,255,255,.62);}
.hero-card{
  position:relative;margin-top:44px;padding:14px;border-radius:var(--r-xl2);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  animation:floatCard 5s ease-in-out infinite;
}
@media screen and (min-width:1024px){.hero-card{margin-top:0;}}
.hero-card img{border-radius:var(--r-lg);aspect-ratio:16/11;object-fit:cover;width:100%;}
.hero-card-tag{
  position:absolute;left:26px;top:26px;padding:6px 12px;border-radius:var(--r-sm);
  background:var(--c-accent);color:#14181A;font-size:12.5px;font-weight:700;
}
.hero-card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 6px 4px;color:#fff;}
.hero-card-foot strong{font-size:15.5px;}
.hero-card-foot span{font-size:13px;color:rgba(255,255,255,.6);}
@keyframes floatCard{0%,100%{transform:translateY(0);}50%{transform:translateY(-10px);}}

/* countdown */
.countdown-bar{background:var(--c-dark);border-top:1px solid rgba(255,255,255,.08);border-bottom:1px solid rgba(255,255,255,.08);padding:26px 0;color:#fff;}
.countdown-inner{display:flex;flex-wrap:wrap;align-items:center;gap:22px;justify-content:space-between;}
.cd-label{display:flex;flex-direction:column;min-width:180px;}
.cd-kicker{font-size:15px;font-weight:700;letter-spacing:.04em;color:#fff;}
.cd-sub{font-size:13px;color:rgba(255,255,255,.55);margin-top:2px;}
.cd-clock{display:flex;align-items:center;gap:8px;}
.cd-unit{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  min-width:64px;padding:8px 10px;border-radius:14px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
  box-shadow:inset 0 2px 8px rgba(0,0,0,.35);
}
@media screen and (min-width:1024px){.cd-unit{min-width:84px;padding:10px 14px;}}
.cd-num{font-size:clamp(28px,4vw,44px);font-weight:800;line-height:1.1;color:var(--c-accent);font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.cd-txt{font-size:12px;color:rgba(255,255,255,.6);letter-spacing:.14em;}
.cd-colon{font-size:26px;font-weight:700;color:rgba(255,255,255,.4);animation:pulseColon 1s steps(1) infinite;}
@keyframes pulseColon{0%,49%{opacity:1;}50%,100%{opacity:.2;}}
.countdown-inner .btn{flex:0 0 auto;}

/* points */
.points-list{border-top:1px solid var(--c-line);}
.point{display:flex;gap:26px;align-items:flex-start;padding:32px 0;border-bottom:1px solid var(--c-line);}
@media screen and (min-width:1024px){.point{gap:48px;padding:40px 0;}}
.point-num{
  flex:0 0 auto;min-width:78px;font-size:clamp(44px,6vw,76px);font-weight:800;line-height:1;
  color:rgba(15,76,66,.14);-webkit-text-stroke:1.5px rgba(15,76,66,.45);
  font-variant-numeric:tabular-nums;
}
@media screen and (min-width:1024px){.point-num{min-width:120px;}}
.point h3{font-size:20px;font-weight:600;margin-bottom:8px;}
.point p{color:var(--c-ink-2);font-size:16px;max-width:720px;}

/* tiles */
.tile{
  position:relative;height:100%;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-xl);overflow:hidden;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.tile:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,76,66,.3);}
.tile-media{position:relative;overflow:hidden;aspect-ratio:16/10;background:rgba(15,76,66,.08);}
.tile-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .45s ease;}
.tile:hover .tile-media img{transform:scale(1.04);}
.tile-badge{
  position:absolute;left:14px;top:14px;padding:5px 11px;border-radius:var(--r-sm);
  background:var(--c-accent);color:#14181A;font-size:12px;font-weight:700;z-index:2;
}
.tile-body{padding:20px 22px 24px;}
.tile-body h3{font-size:20px;font-weight:600;margin-bottom:8px;}
.tile-body p{font-size:15px;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.tiles-grid .column{margin-bottom:24px;}

/* signup */
.signup-wrap{
  background:var(--c-primary);border-radius:var(--r-xl2);padding:38px 26px;color:#fff;
  border:1px solid rgba(255,255,255,.1);box-shadow:var(--sh-2);
}
@media screen and (min-width:1024px){.signup-wrap{padding:56px 52px;}}
.signup-wrap h2{color:#fff;font-size:clamp(24px,3vw,34px);}
.signup-wrap .lead{margin-top:14px;color:rgba(255,255,255,.8);font-size:16px;max-width:520px;}
.signup-cond{margin-top:26px;display:flex;flex-direction:column;gap:12px;}
.signup-cond li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.88);}
.signup-cond li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;border-radius:2px;background:var(--c-accent);
}
.form-card{background:var(--c-surface);border-radius:var(--r-xl);padding:26px;box-shadow:var(--sh-2);}
@media screen and (min-width:1024px){.form-card{padding:30px;}}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:8px;}
.field input,.field select{
  width:100%;height:48px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-md);
  background:#FCFBF8;color:var(--c-ink);transition:border-color .2s ease,box-shadow .2s ease;
}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(15,76,66,.14);background:#fff;
}
.field .hint{font-size:13px;color:var(--c-ink-2);margin-top:6px;}
.field .err{font-size:13px;color:var(--c-error);margin-top:6px;display:none;}
.field.has-error input{border-color:var(--c-error);}
.field.has-error .err{display:block;}
.form-note{font-size:13px;color:var(--c-ink-2);margin-top:14px;line-height:1.7;}
.form-success{
  display:none;margin-top:16px;padding:13px 16px;border-radius:var(--r-md);
  background:rgba(31,138,112,.12);border:1px solid rgba(31,138,112,.35);color:#14614F;font-size:14.5px;
}
.form-success.is-show{display:block;}

/* news */
.news-filter{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.chip{
  padding:9px 18px;border-radius:var(--r-pill);border:1px solid var(--c-line);background:var(--c-surface);
  font-size:14px;font-weight:600;color:var(--c-ink-2);cursor:default;
}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.news-grid .column{margin-bottom:26px;}
.news-card{
  display:flex;flex-direction:column;height:100%;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-xl);overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,76,66,.3);}
.news-thumb{display:block;overflow:hidden;aspect-ratio:16/9;background:rgba(15,76,66,.08);}
.news-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .45s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1;}
.news-cat{
  align-self:flex-start;padding:4px 10px;border-radius:var(--r-sm);background:var(--c-accent-soft);
  color:#A83A12;font-size:12px;font-weight:700;margin-bottom:12px;
}
.news-body h3{font-size:20px;font-weight:600;line-height:1.45;margin-bottom:10px;}
.news-body h3 a{color:var(--c-ink);}
.news-body h3 a:hover{color:var(--c-primary);}
.news-body h3,.news-summary{
  display:-webkit-box;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body h3{-webkit-line-clamp:2;}
.news-summary{-webkit-line-clamp:2;font-size:15px;color:var(--c-ink-2);}
.news-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.news-time{font-size:13.5px;color:var(--c-ink-2);font-weight:500;}
.news-more{display:flex;justify-content:center;margin-top:26px;}
.empty-state{
  background:rgba(15,76,66,.06);border:1px dashed rgba(15,76,66,.28);border-radius:var(--r-xl);
  padding:46px 26px;text-align:center;
}
.empty-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:50%;
  border:2px solid rgba(15,76,66,.35);display:flex;align-items:center;justify-content:center;
  color:var(--c-primary);font-size:22px;font-weight:800;
}
.empty-state p{color:var(--c-ink-2);font-size:16px;margin-bottom:20px;}

/* faq */
.faq-list{margin:0;border:0;background:transparent;}
.faq-list .accordion-item{border:0;border-bottom:1px solid var(--c-line);}
.faq-list .accordion-title{
  position:relative;display:block;padding:22px 52px 22px 0;margin:0;background:transparent;
  font-size:18px;font-weight:600;color:var(--c-ink);border:0;
}
.faq-list .accordion-title:hover{color:var(--c-primary);}
.faq-list .accordion-title::before{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-size:24px;font-weight:400;color:var(--c-primary);line-height:1;
}
.faq-list .accordion-item.is-active .accordion-title::before{content:"\2212";}
.faq-list .accordion-content{padding:0 52px 24px 0;background:transparent;border:0;color:var(--c-ink-2);font-size:16px;}

/* to top */
.to-top{
  position:fixed;right:20px;bottom:24px;width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;font-size:19px;line-height:1;
  box-shadow:var(--sh-2);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s ease;z-index:70;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--c-primary-hover);color:#fff;}

/* footer */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
@media screen and (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media screen and (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;}}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:#fff;}
.footer-brand .brand-mark{background:var(--c-accent);color:#14181A;}
.footer-about{margin-top:16px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.66);}
.footer-col a:hover{color:var(--c-accent);}
.footer-col p{font-size:14.5px;color:rgba(255,255,255,.66);}
.copyright{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.1);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.45);
}

/* reveal */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .48s ease,transform .48s ease;}
.js .reveal.is-visible{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .js .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --c-primary:#0F4C42;
  --c-primary-hover:#0B3A33;
  --c-accent:#FF6B35;
  --c-accent-soft:#FFE7DC;
  --c-ink:#14181A;
  --c-ink-2:#4E5854;
  --c-line:#E4E1D8;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-dark:#0B1210;
  --c-success:#1F8A70;
  --c-warning:#E0A800;
  --c-error:#D13B2E;
  --r-pill:999px;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(20,24,26,.04), 0 8px 24px rgba(20,24,26,.06);
  --sh-2:0 12px 32px rgba(20,24,26,.12);
  --font-cn:-apple-system, "PingFang SC", "HarmonyOS Sans SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;background-color:transparent;}
a:hover,a:focus{color:var(--c-primary-hover);}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;line-height:1.25;}
h1{font-size:clamp(30px,4.4vw,50px);font-weight:800;letter-spacing:-0.02em;}
h2{font-size:clamp(24px,3vw,36px);}
h3{font-size:21px;font-weight:600;line-height:1.4;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid rgba(255,107,53,.55);outline-offset:2px;border-radius:var(--r-sm);}

.idx-container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media screen and (min-width:1024px){ .idx-container{padding:0 40px;} }
@media screen and (min-width:1440px){ .idx-container{max-width:1440px;} }

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:fixed;top:18px;left:0;right:0;z-index:90;}
.header-shell{
  position:relative;
  max-width:1200px;
  margin:0 auto;
  padding:10px 14px 10px 20px;
  display:flex;
  align-items:center;
  gap:18px;
  background:rgba(255,255,255,.74);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid rgba(20,24,26,.09);
  border-radius:var(--r-pill);
  box-shadow:var(--sh-1);
  transition:padding .24s ease, background .24s ease, box-shadow .24s ease;
}
@media screen and (min-width:1024px){
  .header-shell{margin:0 40px;max-width:1120px;}
}
.site-header.scrolled .header-shell{padding:6px 12px 6px 18px;box-shadow:var(--sh-2);background:rgba(255,255,255,.92);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-ink);font-weight:700;}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;letter-spacing:.02em;
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-0.01em;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.main-nav a{
  position:relative;
  display:inline-flex;align-items:center;
  min-height:44px;padding:0 14px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--c-ink-2);
  transition:color .2s ease, background .2s ease;
}
.main-nav a:hover{color:var(--c-primary);background:rgba(15,76,66,.07);}
.main-nav a.active{color:var(--c-primary);font-weight:600;background:rgba(15,76,66,.09);}
.main-nav a.active::after{
  content:"";position:absolute;left:50%;bottom:6px;
  width:5px;height:5px;margin-left:-2.5px;border-radius:50%;
  background:var(--c-accent);
}
.header-cta{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--c-ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--c-ink);border-radius:2px;
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:12px 26px;
  border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn-primary{background:var(--c-accent);color:#20120B;box-shadow:0 6px 18px rgba(255,107,53,.26);}
.btn-primary:hover{background:#F55C24;color:#20120B;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,107,53,.32);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(255,107,53,.24);}
.btn-outline{background:transparent;border-color:var(--c-ink);color:var(--c-ink);}
.btn-outline:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-2px);}
.btn-ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.4);color:#fff;}
.btn-ghost:hover{background:#fff;color:var(--c-ink);border-color:#fff;transform:translateY(-2px);}
.btn-sm{min-height:40px;padding:10px 20px;font-size:14px;}
.btn-pill{border-radius:var(--r-pill);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;}
.link-arrow::after{content:"→";transition:transform .2s ease;}
.link-arrow:hover::after{transform:translateX(4px);}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:linear-gradient(180deg, rgba(15,76,66,.06), rgba(15,76,66,0));padding:118px 0 8px;}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;font-weight:500;color:var(--c-ink-2);}
.crumb a{color:var(--c-ink-2);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#B7B2A4;}
.crumb .current{color:var(--c-ink);font-weight:600;max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头 ---------- */
.article-head{padding:22px 0 0;}
.article-head-inner{max-width:820px;}
.article-tagline{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-badge);
  background:var(--c-accent-soft);color:#B03E12;
  font-size:12px;font-weight:600;margin-bottom:18px;
}
.article-title{margin:0 0 18px;}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:13.5px;font-weight:500;color:var(--c-ink-2);}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#B7B2A4;}
.meta-chip{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:var(--r-pill);
  border:1px solid rgba(15,76,66,.24);color:var(--c-primary);
  font-size:12.5px;font-weight:600;background:rgba(15,76,66,.05);
}
.article-cover{margin:32px 0 0;border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}

/* ---------- 布局 ---------- */
.article-layout{padding:56px 0 0;}
.article-layout .row{display:flex;flex-wrap:wrap;max-width:100%;margin:0 -12px;}
.article-layout .column{padding-left:12px;padding-right:12px;float:none;}
.article-body{
  max-width:780px;
  font-size:17px;
  line-height:1.9;
  color:var(--c-ink);
  overflow-x:auto;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.4em;}
.article-body h2{
  position:relative;
  margin:2.1em 0 .85em;
  padding-left:18px;
  font-size:clamp(22px,2.6vw,29px);
  font-weight:700;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;
  border-radius:2px;background:var(--c-primary);
}
.article-body h3{margin:1.7em 0 .6em;font-size:20px;font-weight:600;}
.article-body strong{font-weight:700;}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.4em;}
.article-body ul li{list-style:disc;margin:.5em 0;}
.article-body ol li{list-style:decimal;margin:.5em 0;}
.article-body blockquote{
  margin:1.7em 0;padding:18px 22px;
  border-left:4px solid var(--c-primary);
  background:rgba(15,76,66,.055);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--c-ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-md);margin:1.6em 0;height:auto;}
.article-body figure{margin:1.7em 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--c-ink-2);margin-top:10px;}
.article-body table{
  width:100%;margin:1.7em 0;
  border-collapse:separate;border-spacing:0;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;font-size:15px;
}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--c-line);text-align:left;vertical-align:top;}
.article-body th{background:rgba(15,76,66,.06);font-weight:600;}
.article-body tr:last-child td{border-bottom:none;}
.article-body a{text-decoration:underline;text-underline-offset:3px;}

/* ---------- 正文尾部 ---------- */
.article-foot{margin:44px 0 0;max-width:780px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;padding:22px 0;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.tag{
  display:inline-flex;align-items:center;min-height:36px;
  padding:6px 16px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;
  font-size:13px;font-weight:500;color:var(--c-ink-2);
  transition:background .2s ease, color .2s ease, border-color .2s ease;
}
.tag:hover{background:rgba(15,76,66,.08);border-color:rgba(15,76,66,.3);color:var(--c-primary);}
.post-nav{display:grid;grid-template-columns:1fr;gap:14px;margin:28px 0 0;}
@media screen and (min-width:640px){ .post-nav{grid-template-columns:1fr 1fr;} }
.post-nav-card{
  display:block;padding:20px 22px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.post-nav-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,76,66,.3);}
.post-nav-card .np-label{display:block;font-size:12px;font-weight:600;color:var(--c-ink-2);margin-bottom:8px;}
.post-nav-card .np-title{display:block;font-size:16px;font-weight:600;color:var(--c-ink);}

/* ---------- 相关推荐 ---------- */
.related{margin:56px 0 0;padding-top:44px;border-top:1px solid var(--c-line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.section-head h2{margin:0;}
.section-head p{margin:8px 0 0;font-size:15px;color:var(--c-ink-2);}
.rel-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media screen and (min-width:640px){ .rel-grid{grid-template-columns:repeat(2,1fr);} }
@media screen and (min-width:1024px){ .rel-grid{grid-template-columns:repeat(3,1fr);} }
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,76,66,.3);}
.rel-card .thumb{aspect-ratio:16/9;overflow:hidden;background:rgba(15,76,66,.08);}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.rel-card:hover .thumb img{transform:scale(1.04);}
.rel-card .rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1;}
.rel-card h3{font-size:17px;font-weight:600;}
.rel-card p{margin:0;font-size:14px;color:var(--c-ink-2);line-height:1.7;}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;margin-top:48px;}
@media screen and (min-width:1024px){
  .article-side{margin-top:0;padding-left:24px;position:sticky;top:96px;align-self:flex-start;}
}
.side-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:22px;}
.side-card h3{font-size:16px;font-weight:700;margin:0 0 14px;padding-bottom:12px;border-bottom:1px solid var(--c-line);}
.toc-list li{margin:0;}
.toc-list a{
  display:block;padding:8px 10px;border-radius:10px;
  font-size:14px;color:var(--c-ink-2);line-height:1.6;
  transition:background .2s ease,color .2s ease;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.toc-list a:hover{background:rgba(15,76,66,.07);color:var(--c-primary);}
.toc-empty{font-size:13.5px;color:var(--c-ink-2);}
.side-links li + li{border-top:1px solid var(--c-line);}
.side-links a{display:flex;align-items:center;justify-content:space-between;padding:11px 0;font-size:14.5px;color:var(--c-ink);}
.side-links a:hover{color:var(--c-primary);}
.side-links a::after{content:"→";font-size:13px;color:#B7B2A4;transition:transform .2s ease;}
.side-links a:hover::after{transform:translateX(4px);color:var(--c-primary);}
.side-cta{background:var(--c-dark);border-color:rgba(255,255,255,.1);color:#fff;}
.side-cta h3{border-bottom-color:rgba(255,255,255,.14);color:#fff;}
.side-cta p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);margin:0 0 16px;}
.side-cta .btn{width:100%;}
.side-cover{border-radius:var(--r-sm);overflow:hidden;margin-bottom:16px;}
.side-cover img{width:100%;aspect-ratio:4/3;object-fit:cover;}

/* ---------- 空态 ---------- */
.empty-panel{
  background:rgba(15,76,66,.06);
  border:1px dashed rgba(15,76,66,.28);
  border-radius:var(--r-lg);
  padding:52px 24px;
  text-align:center;
}
.empty-panel .empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:50%;
  border:2px solid rgba(15,76,66,.35);position:relative;
}
.empty-panel .empty-icon::after{
  content:"";position:absolute;left:50%;top:50%;width:22px;height:2px;
  background:rgba(15,76,66,.45);transform:translate(-50%,-50%);border-radius:2px;
}
.empty-panel h2{font-size:24px;margin-bottom:12px;}
.empty-panel p{color:var(--c-ink-2);font-size:15px;max-width:520px;margin:0 auto 24px;}

/* ---------- CTA 条 ---------- */
.cta-band{padding:96px 0 0;}
.cta-card{
  background:linear-gradient(120deg, var(--c-primary) 0%, #0A3830 100%);
  border:1px solid rgba(255,255,255,.1);
  border-radius:24px;
  padding:44px 40px;
  display:flex;flex-wrap:wrap;align-items:center;gap:28px;
  color:#fff;
}
.cta-card .cta-text{flex:1 1 380px;}
.cta-card h2{color:#fff;margin:0 0 12px;font-size:clamp(24px,3vw,34px);}
.cta-card p{margin:0;color:rgba(255,255,255,.76);font-size:15.5px;line-height:1.85;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto;}
@media screen and (max-width:639px){ .cta-card{padding:32px 22px;} .cta-actions .btn{width:100%;} }

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);margin-top:96px;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media screen and (min-width:768px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;} }
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;margin-bottom:14px;}
.footer-brand .brand-mark{background:var(--c-accent);color:#20120B;}
.footer-about{margin:0;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:380px;}
.footer-col h4{margin:0 0 16px;font-size:15px;font-weight:700;color:#fff;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);}
.footer-col a:hover{color:var(--c-accent);}
.footer-col p{margin:0 0 8px;font-size:14px;color:rgba(255,255,255,.6);}
.copyright{
  margin-top:48px;padding:20px 0;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:20px;bottom:20px;z-index:80;
  width:44px;height:44px;border-radius:50%;
  background:var(--c-primary);color:#fff;border:none;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s ease, transform .3s ease, visibility .3s ease, background .2s ease;
  font-size:16px;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--c-accent);color:#20120B;}

/* ---------- 移动端导航 ---------- */
@media screen and (max-width:1023px){
  .nav-toggle{display:flex;}
  .header-cta .btn{display:none;}
  .main-nav{
    display:none;
    position:absolute;top:calc(100% + 12px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
    padding:14px;box-shadow:var(--sh-2);
  }
  .main-nav.is-open{display:flex;}
  .main-nav a{min-height:48px;padding:0 16px;border-radius:var(--r-sm);font-size:15.5px;}
  .main-nav a.active::after{display:none;}
  .main-nav a.active{background:rgba(15,76,66,.09);}
}
@media screen and (max-width:639px){
  .crumb-bar{padding-top:104px;}
  .article-layout{padding-top:40px;}
  .cta-band{padding-top:64px;}
  .site-footer{margin-top:64px;}
  .article-body{font-size:16.5px;}
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --c-primary:#0F4C42;
  --c-primary-hover:#0B3A33;
  --c-primary-soft:rgba(15,76,66,.08);
  --c-primary-line:rgba(15,76,66,.30);
  --c-accent:#FF6B35;
  --c-accent-soft:#FFE7DC;
  --c-ink:#14181A;
  --c-ink-2:#4E5854;
  --c-line:#E4E1D8;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-dark:#0B1210;
  --c-success:#1F8A70;
  --c-warning:#E0A800;
  --c-error:#D13B2E;
  --sh-1:0 1px 2px rgba(20,24,26,.04),0 8px 24px rgba(20,24,26,.06);
  --sh-2:0 12px 32px rgba(20,24,26,.12);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --font-mono:"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-hover);}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,textarea{font-family:inherit;}
:focus-visible{outline:2px solid rgba(255,107,53,.55);outline-offset:2px;}
h1,h2,h3,h4{line-height:1.3;font-weight:700;color:var(--c-ink);}
.idx-container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%;}
@media screen and (min-width:1024px){.idx-container{padding:0 40px;}}

/* ---------- 导航 ---------- */
.site-header{position:fixed;top:24px;left:0;right:0;z-index:80;transition:top .24s ease;}
.site-header.is-stuck{top:12px;}
.nav-wrap{
  max-width:1200px;
  width:calc(100% - 40px);
  margin:0 auto;
  height:72px;
  display:flex;
  align-items:center;
  gap:18px;
  padding:0 14px 0 20px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.78);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid rgba(20,24,26,.08);
  box-shadow:var(--sh-1);
  transition:height .24s ease,background .24s ease,box-shadow .24s ease;
}
.site-header.is-stuck .nav-wrap{height:56px;background:rgba(255,255,255,.9);box-shadow:var(--sh-2);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-ink);}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;
  font-size:13px;font-weight:800;letter-spacing:.02em;
}
.brand-text{font-size:18px;font-weight:800;letter-spacing:-.01em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.main-nav a{
  position:relative;
  display:inline-flex;align-items:center;
  min-height:44px;
  padding:0 14px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--c-ink-2);
  white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.main-nav a:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.main-nav a.active{color:var(--c-primary);font-weight:700;}
.main-nav a.active::after{
  content:"";position:absolute;left:50%;bottom:8px;
  width:5px;height:5px;margin-left:-2.5px;border-radius:50%;
  background:var(--c-accent);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:var(--r-pill);
  align-items:center;justify-content:center;
  border:1px solid var(--c-line);background:#fff;
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--c-ink);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--c-ink);
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}

.drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(11,18,16,.55);
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;
}
.drawer.is-open{opacity:1;visibility:visible;}
.drawer-panel{
  position:absolute;left:12px;right:12px;top:12px;
  background:var(--c-surface);border-radius:24px;
  padding:22px 20px 26px;box-shadow:var(--sh-2);
  transform:translateY(-12px);transition:transform .24s ease;
}
.drawer.is-open .drawer-panel{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{width:44px;height:44px;border-radius:var(--r-pill);border:1px solid var(--c-line);font-size:20px;line-height:1;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  min-height:52px;display:flex;align-items:center;
  font-size:17px;font-weight:600;color:var(--c-ink);
  border-bottom:1px solid var(--c-line);
}
.drawer-nav a.active{color:var(--c-primary);}
.drawer-cta{margin-top:20px;}
@media screen and (max-width:639.98px){
  .main-nav{display:none;}
  .nav-actions{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .nav-wrap{padding-right:12px;}
}
@media screen and (min-width:640px) and (max-width:1023.98px){
  .main-nav a:nth-child(5){display:none;}
  .main-nav a{padding:0 10px;font-size:14px;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:14px 28px;
  border-radius:var(--r-sm);
  font-size:16px;font-weight:600;line-height:1;
  border:1.5px solid transparent;
  transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
  text-align:center;
}
.btn-sm{min-height:40px;padding:10px 20px;font-size:15px;border-radius:var(--r-pill);}
.btn-primary{background:var(--c-accent);color:#1A1005;box-shadow:0 6px 18px rgba(255,107,53,.28);}
.btn-primary:hover{background:#F65F28;color:#1A1005;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,107,53,.32);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--c-ink);border-color:var(--c-ink);}
.btn-ghost:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-light{background:#fff;color:var(--c-primary);}
.btn-light:hover{background:#F2EFE8;color:var(--c-primary-hover);transform:translateY(-2px);}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--c-primary);
  text-decoration:underline;text-underline-offset:4px;
  text-decoration-thickness:1px;
}
.text-link::after{content:"→";transition:transform .2s ease;text-decoration:none;}
.text-link:hover::after{transform:translateX(4px);}
.text-link.light{color:#fff;}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  padding:150px 0 76px;
  background:
    linear-gradient(180deg,rgba(247,245,240,.95) 0%,rgba(247,245,240,.99) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--c-line);
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:36px;align-items:center;}
@media screen and (min-width:1024px){
  .hero-grid{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;}
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;font-weight:500;color:var(--c-ink-2);margin-bottom:18px;}
.crumbs a{color:var(--c-ink-2);}
.crumbs a:hover{color:var(--c-primary);}
.crumbs span.sep{color:rgba(78,88,84,.6);}
.crumbs strong{color:var(--c-ink);font-weight:700;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--c-accent-soft);color:#9A3A12;
  font-size:13px;font-weight:700;letter-spacing:.02em;
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
.page-hero h1{
  font-size:clamp(30px,4.6vw,52px);
  font-weight:800;letter-spacing:-.02em;line-height:1.14;
}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:var(--c-ink-2);max-width:32em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px 26px;margin-top:30px;}
.hero-meta li{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:500;color:var(--c-ink-2);}
.hero-meta li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary);opacity:.5;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;border-radius:var(--r-lg);
  box-shadow:var(--sh-2);object-fit:cover;aspect-ratio:4/3;
  background:var(--c-primary-soft);
}
.hero-media::before{
  content:"";position:absolute;inset:18px -18px -18px 18px;
  border-radius:var(--r-lg);border:1px solid var(--c-primary-line);z-index:-1;
}
@media screen and (max-width:639.98px){
  .page-hero{padding:120px 0 56px;}
  .hero-media::before{display:none;}
}

/* ---------- 通用板块 ---------- */
.section{padding:64px 0;}
@media screen and (min-width:1024px){.section{padding:104px 0;}}
.section.alt{background:var(--c-bg);}
.section.surface{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.sec-head{max-width:760px;margin-bottom:34px;}
.sec-head h2{font-size:clamp(24px,3vw,36px);font-weight:700;letter-spacing:-.01em;}
.sec-head p{margin-top:14px;font-size:16px;line-height:1.8;color:var(--c-ink-2);}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ---------- 筛选 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.chip{
  min-height:44px;padding:10px 20px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:var(--c-surface);
  font-size:15px;font-weight:600;color:var(--c-ink-2);
  transition:all .2s ease;
}
.chip:hover{border-color:var(--c-primary-line);color:var(--c-primary);background:var(--c-primary-soft);}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.chip[aria-pressed="true"]{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}

/* ---------- 栅格 ---------- */
.grid-row{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px;}
.grid-row > .column{width:100%;padding-left:12px;padding-right:12px;float:none;margin-bottom:24px;}
.grid-row > .column[data-cat]{display:block;}
@media screen and (min-width:640px){
  .grid-row > .column.medium-6{width:50%;}
}
@media screen and (min-width:1024px){
  .grid-row > .column.large-4{width:33.3333%;}
  .grid-row > .column.large-6{width:50%;}
}

/* ---------- 卡片 ---------- */
.mode-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.mode-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-primary-line);}
.mode-media{position:relative;overflow:hidden;background:var(--c-primary-soft);}
.mode-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease;}
.mode-card:hover .mode-media img{transform:scale(1.04);}
.badge{
  position:absolute;left:12px;top:12px;
  padding:5px 12px;border-radius:6px;
  background:var(--c-accent);color:#20120A;
  font-size:12px;font-weight:700;letter-spacing:.02em;
}
.mode-body{padding:22px;display:flex;flex-direction:column;flex:1;}
.mode-body h3{font-size:20px;font-weight:600;line-height:1.4;}
.mode-body p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--c-ink-2);}
.mode-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.mode-time{font-size:13px;font-weight:500;color:var(--c-ink-2);}

/* ---------- 数据带 ---------- */
.stats-band{
  background:var(--c-dark);color:#fff;
  border:1px solid rgba(255,255,255,.08);
  border-radius:24px;
  padding:44px 32px;
}
.stats-band .sec-head h2{color:#fff;}
.stats-band .sec-head p{color:rgba(255,255,255,.72);}
.stats-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 20px;margin-top:8px;}
@media screen and (min-width:768px){.stats-grid{grid-template-columns:repeat(4,minmax(0,1fr));}}
.stat-item{border-top:1px solid rgba(255,255,255,.14);padding-top:18px;}
.stat-num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(28px,3.4vw,40px);
  font-weight:800;color:#fff;letter-spacing:-.02em;line-height:1.1;
}
.stat-num em{font-style:normal;font-size:.42em;color:var(--c-accent);margin-left:6px;letter-spacing:0;}
.stat-label{margin-top:10px;font-size:14px;font-weight:500;color:rgba(255,255,255,.7);}
@media screen and (max-width:767.98px){
  .stats-band{padding:32px 22px;border-radius:20px;}
}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:minmax(0,1fr);gap:22px;counter-reset:flow;}
@media screen and (min-width:768px){.flow{grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;}}
.flow-item{
  position:relative;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:28px 24px 26px;
}
.flow-item::before{
  counter-increment:flow;content:"0" counter(flow);
  display:block;
  font-family:var(--font-mono);
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--c-accent);
  margin-bottom:14px;
}
.flow-item h3{font-size:20px;font-weight:600;}
.flow-item p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--c-ink-2);}
.flow-item .flow-note{
  display:inline-block;margin-top:16px;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:13px;font-weight:600;
}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;min-height:56px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;text-align:left;
  font-size:17px;font-weight:600;color:var(--c-ink);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--c-primary);}
.faq-icon{
  position:relative;flex:0 0 auto;
  width:22px;height:22px;border-radius:50%;
  border:1px solid var(--c-line);
  transition:transform .3s ease,background .3s ease,border-color .3s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:1.6px;}
.faq-icon::after{width:1.6px;height:10px;transition:opacity .3s ease;}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--c-primary-soft);border-color:var(--c-primary-line);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease;}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a-inner p{padding:0 0 22px;font-size:16px;line-height:1.85;color:var(--c-ink-2);max-width:64em;}
.faq-icon{order:2;}

/* ---------- CTA ---------- */
.cta-band{
  display:grid;grid-template-columns:minmax(0,1fr);gap:28px;align-items:center;
  background:var(--c-primary);
  border-radius:24px;
  padding:44px 32px;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-80px;
  width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.06);
}
@media screen and (min-width:1024px){
  .cta-band{grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);padding:56px 56px;gap:40px;}
}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,34px);font-weight:700;position:relative;}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.8);font-size:16px;line-height:1.8;max-width:38em;position:relative;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;position:relative;}
@media screen and (min-width:1024px){.cta-actions{justify-content:flex-end;}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:36px;padding-bottom:48px;}
@media screen and (min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:800;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-accent);color:#1A1005;border-radius:11px;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:30em;}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:.01em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:rgba(255,255,255,.7);font-size:14px;}
.footer-col a:hover{color:var(--c-accent);}
.footer-col p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);}
.copyright{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 28px;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:70;
  width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease,background .2s ease;
}
.to-top:hover{background:var(--c-primary-hover);}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top svg{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s ease,transform .48s ease;}
.reveal.is-in{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --c-primary:#0F4C42;
  --c-primary-dark:#0B3A33;
  --c-primary-soft:rgba(15,76,66,.08);
  --c-accent:#FF6B35;
  --c-accent-hover:#E85A26;
  --c-accent-soft:#FFE7DC;
  --c-ink:#14181A;
  --c-ink-2:#4E5854;
  --c-line:#E4E1D8;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-dark:#0B1210;
  --c-success:#1F8A70;
  --c-warning:#E0A800;
  --c-error:#D13B2E;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,24,26,.04),0 8px 24px rgba(20,24,26,.06);
  --sh-2:0 12px 32px rgba(20,24,26,.12);
  --sp-section:64px;
  --sp-section-lg:110px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,blockquote,ul,ol{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;border:0;}
button,input,textarea,select{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
:focus-visible{outline:2px solid rgba(255,107,53,.55);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media screen and (min-width:1024px){.container{padding:0 40px;}}
.section{padding:var(--sp-section) 0;}
@media screen and (min-width:1024px){.section{padding:var(--sp-section-lg) 0;}}
.section--surface{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--c-primary);background:var(--c-primary-soft);padding:5px 12px;border-radius:var(--r-pill);margin-bottom:14px;}
.section-head h2{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.3;letter-spacing:-.01em;}
.section-desc{margin-top:14px;color:var(--c-ink-2);font-size:16px;line-height:1.85;max-width:720px;}
.section-head.center .section-desc{margin-left:auto;margin-right:auto;}
.divider{height:1px;background:var(--c-line);border:0;margin:0;}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:18px 0;
  transition:padding .24s ease;
}
.site-header.is-scrolled{padding:8px 0;}
.header-inner{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media screen and (min-width:1024px){.header-inner{padding:0 40px;}}
.nav-shell{
  position:relative;
  display:flex;align-items:center;gap:18px;
  padding:10px 12px 10px 20px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.78);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid rgba(20,24,26,.08);
  box-shadow:var(--sh-1);
  transition:background .24s ease,box-shadow .24s ease;
}
.site-header.is-scrolled .nav-shell{background:rgba(255,255,255,.94);box-shadow:var(--sh-2);}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;letter-spacing:-.02em;white-space:nowrap;}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:800;letter-spacing:0;
}
.main-nav{margin-left:auto;display:none;align-items:center;gap:4px;}
.main-nav a{
  position:relative;
  display:inline-flex;align-items:center;
  min-height:44px;padding:0 14px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--c-ink-2);
  transition:color .2s ease,background .2s ease;
}
.main-nav a:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.main-nav a.active{color:var(--c-primary);font-weight:600;background:var(--c-primary-soft);}
.main-nav a.active::before{
  content:"";position:absolute;left:50%;bottom:6px;transform:translateX(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--c-accent);
}
.nav-cta{display:none;}
.nav-toggle{
  margin-left:auto;
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-pill);
  background:var(--c-primary);color:#fff;font-size:16px;
}
@media screen and (min-width:1024px){
  .nav-cta{display:inline-flex;}
  .nav-toggle{display:none;}
  .main-nav{display:flex;margin-left:auto;}
}
@media screen and (max-width:1023px){
  .main-nav{
    display:none;
    position:absolute;top:calc(100% + 12px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    padding:14px;
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
    box-shadow:var(--sh-2);
  }
  .main-nav.is-open{display:flex;}
  .main-nav a{justify-content:flex-start;padding:0 16px;border-radius:var(--r-sm);}
  .main-nav a.active::before{display:none;}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 26px;
  border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1.5px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-accent);color:#20150F;border-color:var(--c-accent);box-shadow:0 6px 18px rgba(255,107,53,.24);}
.btn-primary:hover{background:var(--c-accent-hover);border-color:var(--c-accent-hover);transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,107,53,.3);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(255,107,53,.22);}
.btn-ghost{background:transparent;color:var(--c-ink);border-color:var(--c-ink);}
.btn-ghost:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-2px);}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-ghost-light:hover{background:#fff;color:var(--c-primary);border-color:#fff;transform:translateY(-2px);}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;}
.btn-pill{border-radius:var(--r-pill);}
.btn-sm{padding:9px 18px;font-size:14px;min-height:44px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary);
  text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;
  transition:color .2s ease;
}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover{color:var(--c-primary-dark);}
.link-arrow:hover i{transform:translateX(4px);}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:6px;
  font-size:12px;font-weight:600;line-height:1.6;
  background:var(--c-accent);color:#fff;
}
.badge-soft{background:var(--c-primary-soft);color:var(--c-primary);}
.badge-success{background:rgba(31,138,112,.12);color:var(--c-success);}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:500;color:var(--c-ink-2);
  border:1px solid var(--c-line);background:transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.tag:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:rgba(15,76,66,.3);}
.meta{font-size:13px;font-weight:500;color:var(--c-ink-2);}

/* ============ Hero ============ */
.cat-hero{
  position:relative;
  padding:150px 0 72px;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:#fff;
  overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(11,18,16,.94) 0%,rgba(11,18,16,.8) 42%,rgba(15,76,66,.6) 100%);
}
.hero-inner{position:relative;z-index:1;display:grid;gap:36px;}
@media screen and (min-width:1024px){
  .cat-hero{padding:186px 0 104px;}
  .hero-inner{grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;letter-spacing:.04em;
  background:rgba(255,107,53,.16);color:#FFB799;border:1px solid rgba(255,107,53,.3);
  margin-bottom:20px;
}
.hero-copy h1{
  font-size:clamp(30px,4.6vw,52px);
  font-weight:800;line-height:1.14;letter-spacing:-.02em;
  margin-bottom:18px;
}
.hero-sub{
  font-size:clamp(16px,1.6vw,18px);
  line-height:1.85;color:rgba(255,255,255,.82);
  max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;border-radius:var(--r-lg);
  border:1px solid rgba(255,255,255,.14);
  box-shadow:0 24px 60px rgba(0,0,0,.4);
  animation:floatUp 6s ease-in-out infinite;
}
@keyframes floatUp{
  0%,100%{transform:translateY(0);}
  50%{transform:translateY(-10px);}
}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:26px;
  margin-top:34px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.16);
}
.hero-fact{font-size:14px;color:rgba(255,255,255,.75);}
.hero-fact strong{display:block;font-size:20px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;}
@media (prefers-reduced-motion:reduce){
  .hero-media img{animation:none;}
  *{transition-duration:.01ms !important;}
}

/* ============ 数据条 ============ */
.stats-band{background:var(--c-primary);color:#fff;padding:44px 0;}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px 18px;}
@media screen and (min-width:768px){.stats-grid{grid-template-columns:repeat(4,1fr);gap:20px;}}
.stat-item{border-left:2px solid rgba(255,255,255,.18);padding-left:16px;}
.stat-value{
  font-size:clamp(26px,3.2vw,38px);
  font-weight:800;line-height:1.1;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
  color:#fff;
}
.stat-value em{font-style:normal;font-size:.55em;font-weight:600;color:var(--c-accent);margin-left:4px;}
.stat-label{margin-top:8px;font-size:13px;font-weight:500;color:rgba(255,255,255,.72);}

/* ============ 左右分栏 ============ */
.split-row{display:grid;grid-template-columns:1fr;gap:44px;max-width:100%;margin:0;}
.split-row > .column{float:none;width:auto;padding-left:0;padding-right:0;}
@media screen and (min-width:1024px){
  .split-row{grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:56px;align-items:start;}
}

/* 左侧带序号长列表 */
.benefit-list{border-top:1px solid var(--c-line);}
.benefit-item{
  display:grid;grid-template-columns:auto 1fr;gap:18px;
  padding:26px 0;
  border-bottom:1px solid var(--c-line);
  transition:background .2s ease;
}
.benefit-item:hover{background:rgba(15,76,66,.03);}
.benefit-num{
  font-size:clamp(28px,3.6vw,44px);
  font-weight:800;line-height:1;letter-spacing:-.03em;
  color:rgba(15,76,66,.18);
  font-variant-numeric:tabular-nums;
  min-width:62px;
  padding-top:4px;
}
.benefit-body h3{font-size:20px;font-weight:600;line-height:1.4;margin-bottom:8px;}
.benefit-body p{color:var(--c-ink-2);font-size:15.5px;line-height:1.85;}
.benefit-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:14px;}
.benefit-meta .meta{display:inline-flex;align-items:center;gap:6px;}

/* 右侧粘性 */
.side-stack{display:grid;gap:22px;}
@media screen and (min-width:1024px){
  .side-stack{position:sticky;top:96px;}
}
.card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,76,66,.3);}
.key-card h3{font-size:18px;font-weight:700;margin-bottom:6px;}
.key-card .meta{margin-bottom:16px;}
.check-list li{
  display:grid;grid-template-columns:auto 1fr;gap:10px;
  padding:12px 0;
  border-bottom:1px dashed var(--c-line);
  font-size:14.5px;color:var(--c-ink-2);line-height:1.7;
}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.check-list i{color:var(--c-success);margin-top:5px;font-size:13px;}
.cta-card{
  background:var(--c-dark);
  border-color:rgba(255,255,255,.1);
  color:#fff;
}
.cta-card:hover{border-color:rgba(255,107,53,.5);}
.cta-card h3{font-size:19px;font-weight:700;margin-bottom:8px;}
.cta-card p{font-size:14.5px;color:rgba(255,255,255,.72);line-height:1.8;margin-bottom:18px;}
.cta-card .btn{width:100%;}
.cta-card .link-arrow{color:#FFB799;margin-top:14px;}
.cta-card .link-arrow:hover{color:#fff;}

/* ============ 步骤条 ============ */
.step-strip{
  display:grid;grid-template-columns:1fr;gap:1px;
  background:var(--c-line);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  overflow:hidden;
}
@media screen and (min-width:768px){.step-strip{grid-template-columns:repeat(2,1fr);}}
@media screen and (min-width:1024px){.step-strip{grid-template-columns:repeat(4,1fr);}}
.step{background:var(--c-surface);padding:26px 22px;transition:background .2s ease;}
.step:hover{background:#FBF9F5;}
.step-idx{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:var(--c-accent-soft);color:var(--c-accent-hover);
  font-size:14px;font-weight:700;margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--c-ink-2);line-height:1.75;}

/* ============ 场景图文 ============ */
.scene-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center;}
@media screen and (min-width:1024px){.scene-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:64px;}}
.scene-media img{width:100%;border-radius:var(--r-lg);box-shadow:var(--sh-2);}
.scene-copy h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.3;margin-bottom:16px;}
.scene-copy > p{color:var(--c-ink-2);font-size:16px;line-height:1.85;margin-bottom:22px;}
.scene-list li{
  display:grid;grid-template-columns:auto 1fr;gap:14px;
  padding:14px 0;border-bottom:1px solid var(--c-line);
}
.scene-list li:last-child{border-bottom:0;}
.scene-list .num{
  width:26px;height:26px;border-radius:8px;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;margin-top:4px;
  font-variant-numeric:tabular-nums;
}
.scene-list h3{font-size:16.5px;font-weight:600;margin-bottom:4px;}
.scene-list p{font-size:14.5px;color:var(--c-ink-2);line-height:1.75;}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto;border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;
  display:flex;align-items:center;gap:16px;
  min-height:56px;padding:20px 4px;
  text-align:left;font-size:16.5px;font-weight:600;color:var(--c-ink);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--c-primary);}
.faq-q span{flex:1;}
.faq-q i{
  flex:none;width:28px;height:28px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line);color:var(--c-primary);font-size:12px;
  transition:transform .28s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.faq-item.is-open .faq-q{color:var(--c-primary);}
.faq-item.is-open .faq-q i{transform:rotate(180deg);background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease;}
.faq-a p{padding:0 40px 22px 4px;font-size:15.5px;line-height:1.9;color:var(--c-ink-2);}

/* ============ CTA 条 ============ */
.cta-band{
  background:var(--c-primary);
  color:#fff;
  border-radius:24px;
  padding:40px 28px;
  display:grid;gap:26px;
  border:1px solid rgba(255,255,255,.1);
}
@media screen and (min-width:1024px){
  .cta-band{grid-template-columns:1.4fr auto;align-items:center;padding:52px 56px;gap:40px;}
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3;margin-bottom:10px;}
.cta-band p{font-size:15.5px;color:rgba(255,255,255,.78);line-height:1.8;max-width:620px;}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);padding:64px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
@media screen and (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media screen and (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px;}}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:#fff;margin-bottom:14px;}
.footer-about{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.68);transition:color .2s ease,padding-left .2s ease;}
.footer-col a:hover{color:var(--c-accent);padding-left:4px;}
.footer-col p{font-size:14.5px;color:rgba(255,255,255,.68);margin-bottom:8px;}
.copyright{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:90;
  width:44px;height:44px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;font-size:15px;
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .26s ease,transform .26s ease,visibility .26s ease,background .2s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--c-primary-dark);}

/* 进入视口动画 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s ease,transform .48s ease;}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
}

/* roulang page: category3 */
:root{
  --c-primary:#0F4C42;
  --c-primary-hover:#0B3A33;
  --c-accent:#FF6B35;
  --c-accent-soft:#FFE7DC;
  --c-ink:#14181A;
  --c-ink-2:#4E5854;
  --c-line:#E4E1D8;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-dark:#0B1210;
  --c-success:#1F8A70;
  --c-warning:#E0A800;
  --c-error:#D13B2E;
  --sh-1:0 1px 2px rgba(20,24,26,.04), 0 8px 24px rgba(20,24,26,.06);
  --sh-2:0 12px 32px rgba(20,24,26,.12);
  --r-pill:999px;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-xs:6px;
  --container:1200px;
}

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

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

body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  font-feature-settings:"tnum";
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;height:auto;display:block;border-radius:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--c-primary-hover);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul{list-style:none;padding:0;}

:focus-visible{outline:2px solid rgba(255,107,53,.55);outline-offset:2px;border-radius:4px;}

.idx-container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;
  top:24px;
  left:0;
  right:0;
  z-index:200;
  transition:top .24s ease;
}
.site-header.is-scrolled{top:10px;}

.nav-wrap{
  display:flex;
  align-items:center;
  gap:18px;
  height:72px;
  padding:0 12px 0 20px;
  background:rgba(255,255,255,.74);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid rgba(20,24,26,.08);
  border-radius:var(--r-pill);
  box-shadow:var(--sh-1);
  transition:height .24s ease,box-shadow .24s ease;
}
.site-header.is-scrolled .nav-wrap{
  height:56px;
  box-shadow:0 10px 28px rgba(20,24,26,.14);
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--c-ink);
  font-weight:800;
  font-size:18px;
  letter-spacing:-.01em;
}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:10px;
  background:var(--c-primary);
  color:#fff;
  font-size:13px;
  font-weight:800;
  letter-spacing:.02em;
}
.brand-text{white-space:nowrap;}

.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
  flex-wrap:nowrap;
}
.main-nav a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:var(--r-pill);
  color:var(--c-ink-2);
  font-size:15px;
  font-weight:500;
  white-space:nowrap;
  transition:color .2s ease,background-color .2s ease;
}
.main-nav a:hover{
  color:var(--c-primary);
  background:rgba(15,76,66,.07);
}
.main-nav a.active{
  color:var(--c-primary);
  font-weight:700;
  background:rgba(15,76,66,.09);
}
.main-nav a.active::before{
  content:"";
  position:absolute;
  left:50%;
  bottom:4px;
  width:5px;
  height:5px;
  margin-left:-2.5px;
  border-radius:50%;
  background:var(--c-accent);
}

.nav-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}

.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--c-line);
  background:#fff;
  border-radius:12px;
  color:var(--c-ink);
  font-size:17px;
  cursor:pointer;
  align-items:center;
  justify-content:center;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:13px 26px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1.5px solid transparent;
  cursor:pointer;
  text-align:center;
  transition:transform .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-primary{
  background:var(--c-accent);
  color:#231208;
  border-color:var(--c-accent);
  box-shadow:0 6px 18px rgba(255,107,53,.26);
}
.btn-primary:hover{
  background:#f65f26;
  border-color:#f65f26;
  color:#1a0d05;
  transform:translateY(-2px);
  box-shadow:0 12px 26px rgba(255,107,53,.32);
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  color:var(--c-ink);
  border-color:var(--c-ink);
}
.btn-ghost:hover{
  background:var(--c-primary);
  border-color:var(--c-primary);
  color:#fff;
  transform:translateY(-2px);
}
.btn-outline-light{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.6);
}
.btn-outline-light:hover{
  background:#fff;
  color:var(--c-primary);
  border-color:#fff;
  transform:translateY(-2px);
}
.btn-sm{
  min-height:38px;
  padding:9px 18px;
  font-size:14px;
  border-radius:var(--r-pill);
}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
  text-decoration:underline;
  text-underline-offset:4px;
}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- 页面头部 ---------- */
.page-hero{
  position:relative;
  padding:150px 0 72px;
  background-image:linear-gradient(115deg,rgba(11,18,16,.92) 0%,rgba(15,76,66,.86) 58%,rgba(11,18,16,.9) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.page-hero::after{
  content:"03";
  position:absolute;
  right:4%;
  bottom:-40px;
  font-size:220px;
  font-weight:800;
  line-height:1;
  color:rgba(255,255,255,.05);
  pointer-events:none;
  letter-spacing:-.04em;
}
.page-hero-inner{
  display:flex;
  align-items:center;
  gap:48px;
  position:relative;
  z-index:2;
}
.page-hero-copy{flex:1 1 auto;min-width:0;}
.page-hero-copy .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:rgba(255,107,53,.16);
  border:1px solid rgba(255,107,53,.42);
  color:#FFD9C8;
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
  margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(30px,4.6vw,52px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.16;
  color:#fff;
  margin-bottom:16px;
}
.page-hero .hero-desc{
  max-width:620px;
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,.82);
}
.page-hero-thumb{
  flex:0 0 340px;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 24px 60px rgba(0,0,0,.36);
  transform:translateY(0);
  animation:floatCard .9s ease both;
}
.page-hero-thumb img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
}
@keyframes floatCard{
  from{opacity:0;transform:translateY(16px);}
  to{opacity:1;transform:translateY(0);}
}

/* ---------- 面包屑 ---------- */
.crumb-bar{
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  padding:14px 0;
  font-size:13px;
  color:var(--c-ink-2);
  flex-wrap:wrap;
}
.crumb a{color:var(--c-ink-2);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#B9B4A7;}
.crumb .current{font-weight:700;color:var(--c-ink);}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:var(--c-surface);}
.section-dark{
  background:var(--c-dark);
  color:#E9EDEA;
}
.section-line{border-top:1px solid var(--c-line);}

.section-head{
  max-width:760px;
  margin-bottom:36px;
}
.section-head.center{
  margin-left:auto;
  margin-right:auto;
  text-align:center;
}
.section-head .kicker{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--c-accent);
  margin-bottom:12px;
}
.section-head h2{
  font-size:clamp(24px,3vw,36px);
  font-weight:700;
  letter-spacing:-.01em;
  line-height:1.28;
  color:inherit;
}
.section-dark .section-head h2{color:#fff;}
.section-head p{
  margin-top:14px;
  font-size:16px;
  color:var(--c-ink-2);
}
.section-dark .section-head p{color:rgba(233,237,234,.72);}

/* ---------- 要点速览 ---------- */
.fact-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.fact-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:24px 22px;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.fact-card:hover{
  transform:translateY(-4px);
  border-color:rgba(15,76,66,.32);
  box-shadow:var(--sh-2);
}
.fact-card .num{
  font-size:34px;
  font-weight:800;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
  line-height:1.1;
}
.fact-card .num small{
  font-size:14px;
  font-weight:600;
  color:var(--c-ink-2);
  margin-left:4px;
}
.fact-card h3{
  font-size:17px;
  font-weight:600;
  margin:10px 0 6px;
}
.fact-card p{
  font-size:14px;
  color:var(--c-ink-2);
  line-height:1.75;
}

/* ---------- 时间线 ---------- */
.timeline{
  position:relative;
  max-width:920px;
  margin:0 auto;
}
.timeline::before{
  content:"";
  position:absolute;
  left:19px;
  top:18px;
  bottom:18px;
  width:2px;
  background:linear-gradient(180deg,var(--c-primary) 0%,rgba(15,76,66,.28) 70%,rgba(15,76,66,.06) 100%);
}
.tl-item{
  position:relative;
  padding-left:64px;
  padding-bottom:24px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;
  left:0;
  top:6px;
  width:40px;
  height:40px;
  border-radius:50%;
  background:var(--c-surface);
  border:2px solid var(--c-primary);
  color:var(--c-primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 6px var(--c-bg);
  z-index:2;
}
.section-alt .tl-dot{box-shadow:0 0 0 6px var(--c-surface);}
.tl-item.is-key .tl-dot{
  background:var(--c-accent);
  border-color:var(--c-accent);
  color:#231208;
}
.tl-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:24px 26px;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.section-alt .tl-card{background:var(--c-bg);}
.tl-card:hover{
  transform:translateY(-3px);
  border-color:rgba(15,76,66,.3);
  box-shadow:var(--sh-2);
}
.tl-card-head{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.tl-card h3{
  font-size:20px;
  font-weight:600;
  line-height:1.4;
  letter-spacing:-.01em;
  margin-bottom:0;
}
.tl-card .tl-body{
  margin-top:12px;
  font-size:15px;
  color:var(--c-ink-2);
  line-height:1.85;
}
.tl-card .tl-points{
  margin-top:16px;
  display:grid;
  gap:8px;
}
.tl-card .tl-points li{
  position:relative;
  padding-left:20px;
  font-size:14.5px;
  color:var(--c-ink-2);
}
.tl-card .tl-points li::before{
  content:"";
  position:absolute;
  left:2px;
  top:11px;
  width:7px;
  height:7px;
  border-radius:2px;
  background:var(--c-accent);
}
.tl-card .tl-figure{
  margin-top:18px;
  border-radius:var(--r-sm);
  overflow:hidden;
  border:1px solid var(--c-line);
}
.tl-card .tl-figure img{
  width:100%;
  aspect-ratio:16/7;
  object-fit:cover;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  font-size:12.5px;
  font-weight:600;
  color:var(--c-ink-2);
  background:var(--c-surface);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.tag:hover{
  background:rgba(15,76,66,.08);
  border-color:rgba(15,76,66,.3);
  color:var(--c-primary);
}
.badge{
  display:inline-flex;
  align-items:center;
  padding:4px 10px;
  border-radius:var(--r-xs);
  font-size:12px;
  font-weight:600;
  background:var(--c-accent-soft);
  color:#8A3413;
  letter-spacing:.02em;
}
.badge-dark{
  background:rgba(255,255,255,.14);
  color:#FFD9C8;
  border:1px solid rgba(255,107,53,.4);
}

/* ---------- 条款说明 ---------- */
.clause-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.clause-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-left:4px solid var(--c-primary);
  border-radius:var(--r-md);
  padding:26px 26px 24px;
}
.clause-card h3{
  font-size:19px;
  font-weight:600;
  margin-bottom:12px;
}
.clause-card p{
  font-size:15px;
  color:var(--c-ink-2);
  line-height:1.85;
}
.clause-card ul{
  margin-top:14px;
  display:grid;
  gap:10px;
}
.clause-card ul li{
  position:relative;
  padding-left:22px;
  font-size:14.5px;
  color:var(--c-ink-2);
}
.clause-card ul li i{
  position:absolute;
  left:0;
  top:5px;
  font-size:12px;
  color:var(--c-accent);
}

/* ---------- FAQ ---------- */
.faq-list{
  max-width:880px;
  margin:0 auto;
  border-top:1px solid var(--c-line);
}
.faq-item{
  border-bottom:1px solid var(--c-line);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:64px;
  padding:16px 4px;
  background:transparent;
  border:0;
  cursor:pointer;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--c-ink);
  line-height:1.55;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--c-primary);}
.faq-q .icon{
  flex:0 0 auto;
  width:28px;
  height:28px;
  border-radius:50%;
  border:1px solid var(--c-line);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  color:var(--c-primary);
  transition:transform .28s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.faq-item.is-open .faq-q .icon{
  transform:rotate(180deg);
  background:var(--c-accent);
  border-color:var(--c-accent);
  color:#231208;
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .34s ease;
}
.faq-a-inner{
  padding:0 4px 22px;
  font-size:15px;
  color:var(--c-ink-2);
  line-height:1.9;
  max-width:760px;
}

/* ---------- CTA 条 ---------- */
.cta-block{
  background:linear-gradient(120deg,var(--c-primary) 0%,#0A3730 100%);
  border:1px solid rgba(255,255,255,.1);
  border-radius:24px;
  padding:48px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta-block::after{
  content:"";
  position:absolute;
  right:-80px;
  top:-80px;
  width:260px;
  height:260px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,53,.28) 0%,rgba(255,107,53,0) 70%);
}
.cta-copy{position:relative;z-index:2;max-width:640px;}
.cta-copy h2{
  font-size:clamp(22px,2.6vw,32px);
  font-weight:700;
  line-height:1.3;
  color:#fff;
  margin-bottom:12px;
}
.cta-copy p{
  font-size:15.5px;
  color:rgba(255,255,255,.8);
  line-height:1.85;
}
.cta-actions{
  position:relative;
  z-index:2;
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  flex:0 0 auto;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-dark);
  color:rgba(233,237,234,.72);
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.1fr;
  gap:36px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.09);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:18px;
  font-weight:800;
  margin-bottom:14px;
}
.footer-brand .brand-mark{background:var(--c-accent);color:#231208;}
.footer-about{
  font-size:14px;
  line-height:1.85;
  color:rgba(233,237,234,.62);
  max-width:360px;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col ul li a{
  font-size:14px;
  color:rgba(233,237,234,.66);
}
.footer-col ul li a:hover{color:var(--c-accent);}
.footer-col p{
  font-size:14px;
  color:rgba(233,237,234,.62);
  line-height:1.9;
}
.copyright{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:22px 0 26px;
  font-size:13px;
  color:rgba(233,237,234,.5);
}

/* ---------- 回到顶部 ---------- */
.back-top{
  position:fixed;
  right:24px;
  bottom:28px;
  width:44px;
  height:44px;
  border-radius:50%;
  border:1px solid var(--c-line);
  background:var(--c-surface);
  color:var(--c-primary);
  font-size:16px;
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .26s ease,transform .26s ease,visibility .26s ease,box-shadow .26s ease;
  z-index:180;
  box-shadow:var(--sh-1);
}
.back-top.is-visible{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.back-top:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}

/* ---------- 淡入 ---------- */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .48s ease,transform .48s ease;
}
.reveal.is-in{
  opacity:1;
  transform:translateY(0);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .fact-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .page-hero-thumb{flex-basis:300px;}
}

@media screen and (max-width:1023px){
  .section{padding:64px 0;}
  .section-tight{padding:48px 0;}
  .page-hero{padding:140px 0 56px;}
  .page-hero-inner{flex-direction:column;align-items:flex-start;gap:32px;}
  .page-hero-thumb{flex:0 0 auto;width:100%;max-width:460px;}
  .page-hero::after{font-size:150px;bottom:-20px;}
  .main-nav{
    position:fixed;
    top:86px;
    left:16px;
    right:16px;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:16px;
    background:rgba(255,255,255,.97);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    border:1px solid var(--c-line);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-2);
    max-height:0;
    overflow:hidden;
    opacity:0;
    visibility:hidden;
    transition:max-height .3s ease,opacity .24s ease,visibility .24s ease;
  }
  .main-nav.is-open{
    max-height:420px;
    opacity:1;
    visibility:visible;
  }
  .main-nav a{
    height:48px;
    padding:0 16px;
    border-radius:12px;
    font-size:16px;
  }
  .main-nav a.active::before{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-primary{display:none;}
  .clause-grid{grid-template-columns:1fr;}
  .cta-block{flex-direction:column;align-items:flex-start;padding:36px 28px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
}

@media screen and (max-width:767px){
  .idx-container{padding-left:16px;padding-right:16px;}
  .site-header{top:12px;}
  .nav-wrap{height:60px;padding:0 8px 0 14px;}
  .brand{font-size:16px;}
  .brand-mark{width:30px;height:30px;font-size:12px;}
  .page-hero{padding:120px 0 48px;}
  .page-hero .hero-desc{font-size:15.5px;}
  .fact-grid{grid-template-columns:1fr;}
  .timeline::before{left:15px;}
  .tl-item{padding-left:52px;}
  .tl-dot{width:32px;height:32px;font-size:12.5px;}
  .tl-card{padding:20px 18px;}
  .faq-q{font-size:15.5px;min-height:56px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .copyright{flex-direction:column;align-items:flex-start;gap:6px;}
  .back-top{right:16px;bottom:18px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}

@media screen and (max-width:519px){
  .page-hero h1{font-size:30px;}
  .section{padding:52px 0;}
  .tl-card h3{font-size:17.5px;}
  .clause-card{padding:20px 18px;}
  .section-head h2{font-size:23px;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
    animation-iteration-count:1 !important;
  }
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category4 */
:root{
  --c-primary:#0F4C42;
  --c-primary-hover:#0B3A33;
  --c-primary-soft:rgba(15,76,66,.08);
  --c-accent:#FF6B35;
  --c-accent-soft:#FFE7DC;
  --c-ink:#14181A;
  --c-ink-2:#4E5854;
  --c-line:#E4E1D8;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-dark:#0B1210;
  --c-success:#1F8A70;
  --c-warning:#E0A800;
  --c-error:#D13B2E;
  --sh-1:0 1px 2px rgba(20,24,26,.04),0 8px 24px rgba(20,24,26,.06);
  --sh-2:0 12px 32px rgba(20,24,26,.12);
  --r-sm:6px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-2xl:24px;
  --r-pill:999px;
  --container:1200px;
  --sec:104px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid rgba(255,107,53,.5);outline-offset:2px}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;line-height:1.28;color:var(--c-ink)}
p{margin:0}
.idx-container{max-width:var(--container);margin:0 auto;padding:0 20px;width:100%}
.sec{padding:var(--sec) 0}
.sec-alt{background:var(--c-surface)}
.sec-line{border-top:1px solid var(--c-line)}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:90;padding:18px 0;transition:padding .24s ease}
.site-header.scrolled{padding:8px 0}
.nav-shell{max-width:var(--container);margin:0 auto;padding:0 20px}
.nav-wrap{
  display:flex;align-items:center;gap:16px;
  background:rgba(255,255,255,.78);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(20,24,26,.08);
  border-radius:var(--r-pill);
  padding:9px 12px 9px 16px;
  box-shadow:var(--sh-1);
  min-height:64px;
  transition:min-height .24s ease,background .24s ease,box-shadow .24s ease;
}
.site-header.scrolled .nav-wrap{min-height:56px;background:rgba(255,255,255,.94);box-shadow:var(--sh-2)}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--c-ink);flex:none}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--c-primary);color:#fff;font-size:13px;font-weight:800;letter-spacing:.04em}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.main-nav a{position:relative;padding:10px 14px;border-radius:var(--r-pill);font-size:15px;font-weight:600;color:var(--c-ink-2);transition:color .2s ease,background .2s ease;white-space:nowrap}
.main-nav a:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.main-nav a.active{color:var(--c-primary)}
.main-nav a.active::after{content:"";position:absolute;left:50%;bottom:3px;transform:translateX(-50%);width:5px;height:5px;border-radius:50%;background:var(--c-accent)}
.nav-cta{
  flex:none;display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:10px 22px;border-radius:var(--r-pill);
  background:var(--c-accent);color:#14181A;font-weight:700;font-size:15px;
  transition:transform .2s ease,filter .2s ease,box-shadow .2s ease;
}
.nav-cta:hover{filter:brightness(.94);transform:translateY(-2px);box-shadow:0 10px 22px rgba(255,107,53,.32)}
.nav-cta:active{transform:translateY(0)}
.nav-cta-mobile{display:none}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:14px;
  background:var(--c-surface);cursor:pointer;place-items:center;padding:0;margin-left:auto;flex:none;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;margin:3px auto;transition:transform .2s ease}
@media (max-width:1023px){
  .nav-toggle{display:grid}
  .main-nav{
    position:fixed;left:16px;right:16px;top:82px;
    flex-direction:column;align-items:stretch;gap:4px;
    background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-xl);
    padding:14px;box-shadow:var(--sh-2);display:none;
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:14px 16px;font-size:16px}
  .main-nav a.active::after{left:auto;right:20px;bottom:50%;transform:translateY(50%)}
  .nav-cta{display:none}
  .nav-cta-mobile{
    display:flex;align-items:center;justify-content:center;margin-top:8px;
    min-height:48px;border-radius:var(--r-md);background:var(--c-accent);
    color:#14181A !important;font-weight:700;padding:12px 16px;
  }
  .nav-cta-mobile:hover{background:#ff5f26 !important}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:13px 28px;border-radius:var(--r-md);
  font-size:16px;font-weight:600;cursor:pointer;border:1.5px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,filter .2s ease;
}
.btn-primary{background:var(--c-accent);color:#14181A;border-radius:var(--r-pill);box-shadow:0 8px 20px rgba(255,107,53,.24)}
.btn-primary:hover{filter:brightness(.94);transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,107,53,.32)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(255,107,53,.24)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;border-radius:var(--r-pill)}
.btn-ghost:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-2px)}
.btn-outline{background:transparent;border-color:var(--c-ink);color:var(--c-ink);border-radius:var(--r-pill)}
.btn-outline:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-2px)}
.btn:disabled,.btn.disabled{opacity:.5;pointer-events:none}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
.text-link i{transition:transform .2s ease;font-style:normal}
.text-link:hover i{transform:translateX(4px)}

/* ---------- 页头 Hero ---------- */
.page-hero{position:relative;background:var(--c-dark);color:#fff;overflow:hidden;padding:158px 0 88px}
.page-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.34}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(112deg,rgba(11,18,16,.94) 0%,rgba(11,18,16,.74) 52%,rgba(11,18,16,.48) 100%)}
.page-hero-inner{position:relative;z-index:3;display:grid;grid-template-columns:1.22fr .78fr;gap:56px;align-items:center}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:500;color:rgba(255,255,255,.62);margin-bottom:20px}
.crumb a{color:rgba(255,255,255,.72)}
.crumb a:hover{color:var(--c-accent)}
.crumb .cur{color:#fff;font-weight:700}
.crumb span.sep{opacity:.45}
.page-hero h1{font-size:clamp(30px,4.6vw,52px);font-weight:800;color:#fff;letter-spacing:-.01em;line-height:1.16}
.hero-rule{width:64px;height:3px;background:var(--c-accent);border-radius:999px;margin:22px 0}
.hero-sub{font-size:17px;color:rgba(255,255,255,.78);max-width:560px;line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:28px;font-size:14px;color:rgba(255,255,255,.6)}
.hero-meta strong{color:#fff;font-weight:700}
.page-hero-figure{position:relative}
.page-hero-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-xl);
  border:1px solid rgba(255,255,255,.14);box-shadow:0 24px 60px rgba(0,0,0,.4);
  animation:floatUp .9s ease both;
}
.page-hero-figure::after{
  content:"";position:absolute;left:-16px;bottom:-16px;width:120px;height:120px;
  border-radius:20px;background:var(--c-accent);opacity:.18;z-index:-1;
}
@keyframes floatUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}

/* ---------- 通用区块头 ---------- */
.sec-head{max-width:760px;margin-bottom:44px}
.sec-kicker{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--c-accent);margin-bottom:14px}
.sec-head h2{font-size:clamp(24px,3vw,36px);font-weight:700;letter-spacing:-.01em}
.sec-head p{margin-top:14px;color:var(--c-ink-2);font-size:16px;line-height:1.85}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- 杂志拼贴图墙 ---------- */
.collage-grid{margin-bottom:-24px}
.collage-grid>.cell{padding-bottom:24px}
.m-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-xl);
  overflow:hidden;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.m-card:hover{transform:translateY(-4px);border-color:rgba(15,76,66,.32);box-shadow:var(--sh-2)}
.m-card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:rgba(15,76,66,.08)}
.m-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.m-card:hover .m-card-media img{transform:scale(1.04)}
.m-badge{
  position:absolute;top:14px;left:14px;z-index:2;
  background:var(--c-accent);color:#14181A;
  font-size:12px;font-weight:700;padding:5px 10px;border-radius:var(--r-sm);
}
.m-badge--soft{background:rgba(255,255,255,.9);color:var(--c-primary)}
.m-card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.m-card-body h3{font-size:20px;font-weight:600;line-height:1.4}
.m-card-body p{font-size:15px;color:var(--c-ink-2);line-height:1.8;flex:1}
.m-card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--c-ink-2);font-weight:500}

/* ---------- 横向条目列表 ---------- */
.strip-list{border-top:1px solid var(--c-line)}
.strip-item{
  display:grid;grid-template-columns:96px 1fr auto;gap:28px;align-items:center;
  padding:30px 12px;border-bottom:1px solid var(--c-line);
  transition:background .22s ease,padding-left .22s ease;
}
.strip-item:hover{background:rgba(15,76,66,.04);padding-left:20px}
.strip-num{font-size:34px;font-weight:800;color:rgba(15,76,66,.28);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.strip-item h3{font-size:20px;font-weight:600;margin-bottom:6px}
.strip-item p{font-size:15px;color:var(--c-ink-2);max-width:760px}
.strip-item .text-link{white-space:nowrap}

/* ---------- 深色数据带 ---------- */
.dark-band{
  background:var(--c-dark);color:#fff;border-radius:var(--r-2xl);
  padding:56px;border:1px solid rgba(255,255,255,.08);
}
.dark-band h2{color:#fff;font-size:clamp(23px,2.7vw,32px)}
.dark-band .lead{margin-top:14px;color:rgba(255,255,255,.72);max-width:640px;font-size:16px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;margin-top:44px}
.stat{padding-top:20px;border-top:1px solid rgba(255,255,255,.14)}
.stat-num{font-size:clamp(28px,3.4vw,42px);font-weight:800;color:var(--c-accent);font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1.1}
.stat-label{margin-top:10px;font-size:14px;color:rgba(255,255,255,.66);line-height:1.7}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:none;border:0;padding:24px 4px;min-height:56px;cursor:pointer;text-align:left;
  font-size:18px;font-weight:600;color:var(--c-ink);transition:color .2s ease;
}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{
  flex:none;width:32px;height:32px;border-radius:50%;border:1px solid var(--c-line);
  display:grid;place-items:center;font-size:18px;line-height:1;color:var(--c-primary);
  transition:transform .3s ease,background .3s ease,border-color .3s ease;
}
.faq-item.open .faq-icon{transform:rotate(180deg);background:var(--c-primary-soft);border-color:rgba(15,76,66,.3)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .36s ease}
.faq-item.open .faq-a{max-height:360px}
.faq-a p{padding:0 44px 24px 4px;color:var(--c-ink-2);font-size:16px;line-height:1.85}

/* ---------- CTA 表单 ---------- */
.cta-band{
  background:var(--c-primary);color:#fff;border-radius:var(--r-2xl);
  padding:56px;display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:start;
  border:1px solid rgba(255,255,255,.1);
}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,34px)}
.cta-band .lead{margin-top:14px;color:rgba(255,255,255,.78);font-size:16px}
.cta-points{margin-top:26px;display:grid;gap:12px}
.cta-points li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.86)}
.cta-points li::before{content:"";flex:none;width:8px;height:8px;border-radius:50%;background:var(--c-accent);margin-top:10px}
.form-card{background:var(--c-surface);border-radius:var(--r-xl);padding:28px;box-shadow:var(--sh-2)}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;border:1px solid var(--c-line);
  border-radius:var(--r-md);background:#FDFCFA;font-size:15px;color:var(--c-ink);
  transition:border-color .2s ease,box-shadow .2s ease;appearance:none;
}
.field select{background-image:none;font-size:15px}
.field textarea{min-height:96px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#9AA3A0}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(15,76,66,.12);outline:none;background:#fff;
}
.field .hint{font-size:13px;color:var(--c-ink-2);margin-top:6px}
.form-card .btn{width:100%}
.form-ok{
  display:none;margin-top:16px;padding:12px 16px;border-radius:var(--r-md);
  background:rgba(31,138,112,.12);border:1px solid rgba(31,138,112,.35);
  color:#136B58;font-size:14px;font-weight:600;
}
.form-ok.show{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);padding:76px 0 0;margin-top:var(--sec)}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px;
  padding-bottom:52px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:19px;margin-bottom:18px}
.footer-brand .brand-mark{background:var(--c-accent);color:#14181A}
.footer-about{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:340px}
.footer-col h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:18px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);transition:color .2s ease,padding-left .2s ease}
.footer-col a:hover{color:var(--c-accent);padding-left:4px}
.footer-col p{font-size:14px;color:rgba(255,255,255,.62);line-height:1.85;margin-bottom:8px}
.copyright{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:24px 0;font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 回到顶部 ---------- */
#toTop{
  position:fixed;right:22px;bottom:26px;z-index:80;
  width:44px;height:44px;border-radius:50%;border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--c-primary);cursor:pointer;
  display:grid;place-items:center;box-shadow:var(--sh-1);
  opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity .28s ease,transform .28s ease,background .2s ease,color .2s ease;
  font-size:18px;line-height:1;
}
#toTop.show{opacity:1;pointer-events:auto;transform:none}
#toTop:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s ease,transform .48s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--sec:88px}
  .cta-band{padding:44px;gap:36px}
  .dark-band{padding:44px}
}
@media (max-width:1023px){
  :root{--sec:76px}
  .page-hero{padding:132px 0 68px}
  .page-hero-inner{grid-template-columns:1fr;gap:36px}
  .page-hero-figure{max-width:520px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .strip-item{grid-template-columns:72px 1fr;gap:18px}
  .strip-item .text-link{grid-column:2}
}
@media (max-width:767px){
  body{font-size:16px}
  :root{--sec:60px}
  .idx-container{padding:0 18px}
  .nav-shell{padding:0 12px}
  .brand{font-size:16px}
  .brand-mark{width:30px;height:30px;font-size:12px}
  .page-hero{padding:118px 0 56px}
  .hero-actions .btn{width:100%}
  .page-hero h1{font-size:clamp(28px,7.4vw,38px)}
  .sec-head{margin-bottom:30px}
  .m-card-body{padding:18px}
  .strip-item{padding:22px 4px}
  .strip-num{font-size:26px}
  .dark-band{padding:30px 22px;border-radius:var(--r-xl)}
  .stats{grid-template-columns:1fr 1fr;gap:20px;margin-top:32px}
  .faq-q{font-size:16px;padding:20px 2px}
  .faq-a p{padding:0 8px 20px 2px;font-size:15px}
  .cta-band{padding:30px 22px;border-radius:var(--r-xl)}
  .form-card{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .site-footer{padding-top:56px;margin-top:64px}
  .copyright{flex-direction:column;gap:8px}
  #toTop{right:16px;bottom:18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}