/* roulang page: index */
:root{
  --brand:#10352E;
  --brand-deep:#0B2621;
  --brand-soft:#1D4C43;
  --accent:#C2571F;
  --accent-soft:#E07A3E;
  --page:#F7F4EF;
  --card:#FFFFFF;
  --muted-bg:#EFEAE1;
  --dark:#14110E;
  --ink:#1A1A18;
  --ink-2:#5A5A54;
  --ink-3:#8A867D;
  --line:#E3DED5;
  --line-dark:rgba(243,239,232,.14);
  --on-dark:#F3EFE8;
  --on-dark-2:#C9C3B7;
  --r-card:4px;
  --r-img:6px;
  --r-btn:2px;
  --shadow-1:0 1px 2px rgba(20,17,14,.04);
  --shadow-2:0 14px 32px -14px rgba(20,17,14,.14);
  --serif:"Noto Serif SC","Source Han Serif SC",Georgia,"Songti SC",serif;
  --sans:"Noto Sans SC",system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--page);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .25s ease,border-color .25s ease}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent-soft);outline-offset:3px;border-radius:2px}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;color:var(--ink);margin:0;letter-spacing:-.01em}
p{margin:0 0 1.35em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
.wrap{max-width:1240px;margin:0 auto;padding:0 24px}
@media(min-width:1400px){.wrap{max-width:1320px}}
@media(max-width:575px){.wrap{padding:0 16px}}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s cubic-bezier(.2,.6,.2,1),transform .6s cubic-bezier(.2,.6,.2,1)}
.reveal.is-in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}
.reveal.d2{transition-delay:.16s}
.reveal.d3{transition-delay:.24s}

/* ---------- sticky header ---------- */
.site-sticky{position:sticky;top:0;z-index:1040}

/* ---------- countdown bar ---------- */
.count-bar{background:var(--dark);color:var(--on-dark-2);font-size:12.5px;letter-spacing:.02em}
.count-inner{display:flex;align-items:center;gap:18px;height:40px}
.count-title{color:var(--on-dark);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.count-nums{display:flex;align-items:center;gap:0;margin-left:auto;flex-shrink:0}
.count-unit{display:flex;align-items:baseline;gap:6px;padding:0 14px;border-left:1px solid var(--line-dark)}
.count-unit b{font-family:var(--mono);font-style:normal;font-weight:600;font-size:14px;color:var(--on-dark);font-variant-numeric:tabular-nums}
.count-unit i{font-style:normal;font-size:11.5px;color:var(--ink-3)}
.count-note{padding-left:16px;border-left:1px solid var(--line-dark);display:flex;align-items:center;gap:12px;white-space:nowrap}
.count-close{background:none;border:0;color:var(--ink-3);cursor:pointer;font-size:15px;line-height:1;padding:4px 2px;transition:color .25s}
.count-close:hover{color:var(--on-dark)}
@media(max-width:767px){
  .count-inner{height:auto;flex-wrap:wrap;gap:8px;padding:8px 0}
  .count-note{display:none}
  .count-nums{margin-left:0}
  .count-unit{padding:0 10px}
}

/* ---------- nav ---------- */
.site-nav{background:var(--page);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;height:74px}
.logo{font-family:var(--serif);font-size:19px;font-weight:700;color:var(--brand);letter-spacing:.01em;white-space:nowrap;line-height:1.2}
.logo em{font-style:normal;color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{position:relative;font-size:14.5px;letter-spacing:.02em;color:var(--ink-2);padding:6px 0}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .28s cubic-bezier(.2,.6,.2,1)}
.nav-links a:hover{color:var(--brand)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--brand)}
.nav-links a.active::after{transform:scaleX(1)}
.nav-cta{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--brand);color:var(--brand);border-radius:var(--r-btn);padding:9px 18px;font-size:13.5px;letter-spacing:.04em;background:transparent;transition:background .3s ease,color .3s ease}
.nav-cta:hover{background:var(--brand);color:#fff}
.burger{display:none;width:44px;height:44px;background:none;border:0;cursor:pointer;position:relative;padding:0}
.burger span{display:block;position:absolute;left:11px;right:11px;height:1.5px;background:var(--brand);transition:transform .3s ease,opacity .3s ease}
.burger span:nth-child(1){top:18px}
.burger span:nth-child(2){top:26px}
.burger.open span:nth-child(1){transform:translateY(4px) rotate(45deg)}
.burger.open span:nth-child(2){transform:translateY(-4px) rotate(-45deg)}
@media(max-width:1099px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .burger{display:block}
}
.nav-drawer{position:fixed;inset:0;background:var(--page);z-index:1050;transform:translateY(-100%);transition:transform .38s cubic-bezier(.2,.6,.2,1);display:flex;flex-direction:column}
.nav-drawer.open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:74px;padding:0 24px;border-bottom:1px solid var(--line)}
.drawer-list{padding:12px 24px;overflow-y:auto;flex:1}
.drawer-list a{display:flex;align-items:center;justify-content:space-between;padding:18px 0;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line)}
.drawer-list a.active{color:var(--brand);font-weight:600}
.drawer-list a i{color:var(--ink-3);font-size:12px}
.drawer-foot{padding:20px 24px 32px}
.drawer-close{background:none;border:0;font-size:22px;color:var(--brand);cursor:pointer;line-height:1;width:44px;height:44px}

/* ---------- buttons ---------- */
.btn-solid,.btn-ghost,.btn-accent{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:var(--r-btn);font-size:15px;letter-spacing:.04em;position:relative;overflow:hidden;cursor:pointer;border:0;font-family:var(--sans);min-height:44px;transition:color .3s ease,box-shadow .3s ease,border-color .3s ease}
.btn-solid{background:var(--brand);color:#fff}
.btn-solid::before{content:"";position:absolute;inset:0;background:var(--brand-deep);transform:scaleX(0);transform-origin:left;transition:transform .3s cubic-bezier(.2,.6,.2,1)}
.btn-solid span,.btn-ghost span,.btn-accent span{position:relative;z-index:1}
.btn-solid:hover{color:#fff;box-shadow:inset 0 -2px 0 var(--accent)}
.btn-solid:hover::before{transform:scaleX(1)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--ink)}
.btn-ghost::before{content:"";position:absolute;inset:0;background:var(--ink);transform:scaleX(0);transform-origin:left;transition:transform .3s cubic-bezier(.2,.6,.2,1)}
.btn-ghost:hover{color:var(--page)}
.btn-ghost:hover::before{transform:scaleX(1)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent::before{content:"";position:absolute;inset:0;background:#A34617;transform:scaleX(0);transform-origin:left;transition:transform .3s cubic-bezier(.2,.6,.2,1)}
.btn-accent:hover::before{transform:scaleX(1)}
.btn-accent:hover{box-shadow:inset 0 -2px 0 rgba(255,255,255,.6)}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--brand);border-bottom:1px solid rgba(16,53,46,.35);padding-bottom:2px;transition:border-color .25s ease,color .25s ease}
.link-arrow:hover{color:var(--accent);border-color:var(--accent)}
.link-arrow.on-dark{color:var(--on-dark);border-color:rgba(243,239,232,.4)}
.link-arrow.on-dark:hover{color:var(--accent-soft);border-color:var(--accent-soft)}

/* ---------- section basics ---------- */
.sec{padding:96px 0}
.sec-alt{background:var(--muted-bg)}
.sec-dark{background:var(--dark);color:var(--on-dark-2)}
@media(max-width:991px){.sec{padding:72px 0}}
@media(max-width:575px){.sec{padding:56px 0}}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:48px}
.sec-dark .sec-head{border-color:var(--line-dark)}
.sec-kicker{font-family:var(--mono);font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:10px}
.sec-title{font-size:clamp(24px,3vw,36px);line-height:1.3}
.sec-dark .sec-title{color:var(--on-dark)}
.sec-sub{font-size:14.5px;color:var(--ink-2);max-width:620px;margin-top:12px}
.sec-dark .sec-sub{color:var(--on-dark-2)}
@media(max-width:767px){
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px}
}

/* ---------- hero ---------- */
.hero{padding:84px 0 96px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;letter-spacing:.08em;color:var(--accent);font-family:var(--mono);margin-bottom:22px}
.hero-eyebrow::before{content:"";width:28px;height:1px;background:var(--accent)}
.hero h1{font-size:clamp(30px,4.4vw,52px);line-height:1.2;color:var(--brand)}
.hero-lead{font-size:17px;color:var(--ink-2);max-width:600px;margin-top:22px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-rule{height:1px;background:var(--line);margin:44px 0 26px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.hero-stat b{display:block;font-family:var(--mono);font-size:clamp(22px,2.4vw,30px);color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-stat span{display:block;font-size:12.5px;letter-spacing:.06em;color:var(--ink-3);margin-top:6px}
.hero-media{position:relative}
.hero-media .frame{aspect-ratio:4/5;border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;background:var(--muted-bg)}
.hero-media .frame img{width:100%;height:100%;object-fit:cover}
.hero-media .tag{position:absolute;left:18px;bottom:18px;background:rgba(20,17,14,.72);color:var(--on-dark);font-size:12.5px;letter-spacing:.06em;padding:8px 14px;border-radius:999px}
@media(max-width:991px){
  .hero{padding:56px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-media{order:2}
  .hero-media .frame{aspect-ratio:4/5;max-height:46vh;margin:0 auto;max-width:440px}
}
@media(max-width:575px){
  .hero-stats{grid-template-columns:1fr;gap:16px}
  .hero-rule{margin:32px 0 20px}
}

/* ---------- numbered list ---------- */
.num-list{display:grid;grid-template-columns:1fr 1fr;gap:0 64px}
.num-item{display:flex;gap:24px;padding:28px 16px 28px 0;border-bottom:1px solid var(--line);transition:background .3s ease}
.num-item:hover{background:var(--muted-bg)}
.num-idx{font-family:var(--serif);font-size:48px;line-height:1;color:#D9D2C6;min-width:74px;transition:color .3s ease}
.num-item:hover .num-idx{color:var(--accent-soft)}
.num-body h3{font-size:20px;line-height:1.5;margin-bottom:8px}
.num-body p{font-size:15px;color:var(--ink-2);line-height:1.8;margin:0}
@media(max-width:991px){
  .num-list{grid-template-columns:1fr;gap:0}
  .num-idx{font-size:38px;min-width:58px}
}

/* ---------- gallery ---------- */
.gallery{display:grid;grid-template-columns:repeat(6,1fr);gap:20px}
.g-cell{position:relative;overflow:hidden;border-radius:var(--r-img);background:var(--muted-bg);height:260px}
.g-cell img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.6,.2,1)}
.g-cell::after{content:"";position:absolute;inset:0;background:rgba(11,38,33,.28);opacity:0;transition:opacity .4s ease}
.g-cell:hover::after{opacity:1}
.g-cell:hover img{transform:scale(1.03)}
.g-cap{position:absolute;right:14px;bottom:14px;z-index:2;background:rgba(247,244,239,.92);color:var(--brand);font-size:12.5px;letter-spacing:.04em;padding:6px 13px;border-radius:999px}
.g-3{grid-column:span 3}
.g-2{grid-column:span 2}
.g-4{grid-column:span 4}
@media(max-width:991px){
  .gallery{grid-template-columns:repeat(2,1fr);gap:16px}
  .g-cell{height:200px}
  .g-3,.g-2,.g-4{grid-column:span 1}
  .g-4{grid-column:span 2}
}
@media(max-width:575px){
  .gallery{grid-template-columns:1fr}
  .g-cell{height:190px}
  .g-4{grid-column:span 1}
}

/* ---------- info cards (CMS) ---------- */
.info-card{display:flex;flex-direction:column;height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease}
.info-card:hover{transform:translateY(-2px);border-color:rgba(16,53,46,.4);box-shadow:var(--shadow-2)}
.info-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--muted-bg)}
.info-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.6,.2,1)}
.info-card:hover .info-thumb img{transform:scale(1.03)}
.info-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.badge-soft{display:inline-block;align-self:flex-start;font-size:12.5px;letter-spacing:.04em;color:var(--brand);background:var(--muted-bg);border-radius:999px;padding:4px 12px;margin-bottom:14px}
.info-body h3{font-size:18px;line-height:1.6;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.info-body h3 a:hover{color:var(--accent)}
.info-body p{font-size:14px;color:var(--ink-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:18px}
.info-meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-family:var(--mono);font-size:12.5px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.info-empty{border:1px dashed var(--line);border-radius:var(--r-card);padding:64px 24px;text-align:center}
.info-empty p{color:var(--ink-2);font-size:15px;margin-bottom:14px}
.info-empty .row2{font-size:14px;color:var(--ink-3);margin-bottom:22px}

/* ---------- stats ---------- */
.stat-card{height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:32px 28px;transition:border-color .3s ease,transform .3s ease}
.stat-card:hover{border-color:rgba(16,53,46,.4);transform:translateY(-2px)}
.stat-num{font-family:var(--mono);font-size:clamp(28px,3.4vw,40px);line-height:1.1;color:var(--brand);font-variant-numeric:tabular-nums}
.stat-label{font-size:12.5px;letter-spacing:.08em;color:var(--ink-3);margin-top:10px;text-transform:uppercase;font-family:var(--mono)}
.stat-desc{font-size:14px;color:var(--ink-2);margin-top:16px;line-height:1.8}

/* ---------- CTA form ---------- */
.cta-form label{display:block}
.field{position:relative;margin-bottom:30px}
.field input,.field textarea{width:100%;background:transparent;border:0;border-bottom:1px solid rgba(243,239,232,.3);color:var(--on-dark);padding:14px 0 10px;font-size:15px;font-family:var(--sans);outline:none;transition:border-color .25s ease;border-radius:0}
.field textarea{resize:vertical;min-height:70px}
.field input:focus,.field textarea:focus{border-bottom-color:var(--accent-soft);border-bottom-width:2px}
.field .flabel{position:absolute;left:0;top:14px;font-size:14px;color:var(--on-dark-2);pointer-events:none;transition:top .25s ease,font-size .25s ease,color .25s ease}
.field input:focus~.flabel,.field input:not(:placeholder-shown)~.flabel,
.field textarea:focus~.flabel,.field textarea:not(:placeholder-shown)~.flabel{top:-10px;font-size:12.5px;color:var(--accent-soft)}
.form-note{font-size:12.5px;color:var(--ink-3);line-height:1.7;margin-top:6px}
.cta-copy h2{color:var(--on-dark);font-size:clamp(24px,3vw,36px);line-height:1.3}
.cta-copy p{color:var(--on-dark-2);font-size:15px;margin-top:18px;max-width:520px}
.cta-list{margin-top:28px}
.cta-list li{display:flex;gap:12px;font-size:14px;color:var(--on-dark-2);padding:10px 0;border-top:1px solid var(--line-dark)}
.cta-list li b{font-family:var(--mono);color:var(--accent-soft);font-weight:600;flex-shrink:0}
.form-alert{min-height:24px;font-size:13px;color:var(--accent-soft);margin-top:16px}

/* ---------- FAQ ---------- */
.faq .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.faq .accordion-button{background:transparent;box-shadow:none;padding:26px 0;font-family:var(--serif);font-size:19px;line-height:1.5;color:var(--ink);display:flex;align-items:baseline;gap:18px;border-radius:0}
.faq .accordion-button:not(.collapsed){color:var(--brand);background:transparent;box-shadow:none}
.faq .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq .accordion-button::after{display:none}
.faq .faq-num{font-family:var(--mono);font-size:12.5px;color:var(--accent);letter-spacing:.06em;flex-shrink:0}
.faq .sign{margin-left:auto;font-size:20px;line-height:1;color:var(--accent);flex-shrink:0;font-family:var(--sans)}
.faq .sign::before{content:"+"}
.faq .accordion-button:not(.collapsed) .sign::before{content:"–"}
.faq .accordion-body{padding:0 0 28px;font-size:15px;color:var(--ink-2);line-height:1.85;max-width:860px}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:var(--on-dark-2);padding:80px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:0}
.footer-col{padding:0 32px}
.footer-col:first-child{padding-left:0}
.footer-col:last-child{padding-right:0}
.footer-col + .footer-col{border-left:1px solid var(--line-dark)}
.footer-logo{font-family:var(--serif);font-size:19px;color:var(--on-dark);font-weight:700;line-height:1.4}
.footer-logo em{font-style:normal;color:var(--accent-soft)}
.footer-desc{font-size:13.5px;line-height:1.9;margin-top:16px;color:var(--on-dark-2)}
.footer-title{font-size:12.5px;letter-spacing:.08em;color:var(--ink-3);font-family:var(--mono);margin-bottom:18px;text-transform:uppercase}
.footer-links li{margin-bottom:12px}
.footer-links a{font-size:14px;color:var(--on-dark-2)}
.footer-links a:hover{color:var(--on-dark);border-bottom:1px solid var(--on-dark)}
.footer-info li{font-size:14px;color:var(--on-dark-2);margin-bottom:12px;display:flex;gap:10px}
.footer-info li span{color:var(--ink-3);flex-shrink:0}
.footer-bottom{margin-top:64px;border-top:1px solid var(--line-dark);padding:24px 0 28px;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:12.5px;color:var(--ink-3)}
@media(max-width:991px){
  .site-footer{padding-top:56px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:0}
  .footer-col{padding:0 24px 32px 0}
  .footer-col:nth-child(odd){padding-left:0}
  .footer-col + .footer-col{border-left:0}
  .footer-col:nth-child(even){border-left:1px solid var(--line-dark);padding-left:24px}
}
@media(max-width:575px){
  .footer-grid{grid-template-columns:1fr}
  .footer-col{padding:0 0 32px 0}
  .footer-col:nth-child(even){border-left:0;padding-left:0}
}

@media (prefers-reduced-motion: reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1!important;transform:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --ink:#10352E;
  --ink-deep:#0B2621;
  --ink-soft:#1D4C43;
  --copper:#C2571F;
  --copper-soft:#E07A3E;
  --bg:#F7F4EF;
  --card:#FFFFFF;
  --bg-alt:#EFEAE1;
  --dark:#14110E;
  --t1:#1A1A18;
  --t2:#5A5A54;
  --t3:#8A867D;
  --line:#E3DED5;
  --line-dark:rgba(243,239,232,.14);
  --inv1:#F3EFE8;
  --inv2:#C9C3B7;
  --r-card:8px;
  --r-img:8px;
  --r-btn:4px;
  --sh1:0 1px 2px rgba(20,17,14,.04);
  --sh2:0 16px 36px -18px rgba(20,17,14,.18);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,"Times New Roman",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--t1);
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);margin:0;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(30px,4.4vw,50px);line-height:1.2}
h2{font-size:clamp(24px,3vw,34px);line-height:1.3}
h3{font-size:20px;line-height:1.5;letter-spacing:0}
p{margin:0 0 1.35em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
.wrap{max-width:1240px;margin:0 auto;padding:0 24px;width:100%}
@media(min-width:1400px){.wrap{max-width:1320px}}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-line{border-top:1px solid var(--line)}
.eyebrow{
  font-size:12.5px;line-height:1.6;letter-spacing:.16em;text-transform:uppercase;
  color:var(--copper);margin:0 0 14px;font-weight:600;
}
.lead{color:var(--t2);font-size:17px;max-width:760px}
.muted{color:var(--t3);font-size:14px;line-height:1.7}

/* 导航 */
.site-nav{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,244,239,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:24px;height:74px}
.logo{
  font-family:var(--serif);font-size:20px;font-weight:700;letter-spacing:.02em;
  color:var(--ink);white-space:nowrap;
}
.logo em{font-style:normal;color:var(--copper)}
.site-nav nav{flex:1;display:flex;justify-content:center}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{
  position:relative;display:inline-block;padding:6px 0;
  font-size:14.5px;letter-spacing:.02em;color:var(--t2);transition:color .25s;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--ink);
  transform:scaleX(0);transform-origin:left;transition:transform .28s cubic-bezier(.2,.6,.2,1);
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink);font-weight:600}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:40px;padding:0 20px;border:1px solid var(--ink);border-radius:var(--r-btn);
  font-size:14px;color:var(--ink);letter-spacing:.02em;
  transition:background .3s,color .3s,border-color .3s;
}
.nav-cta:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.burger{
  display:none;width:44px;height:44px;border:0;background:transparent;
  padding:0;position:relative;cursor:pointer;margin-left:auto;
}
.burger span{
  position:absolute;left:12px;width:20px;height:1.5px;background:var(--ink);
  transition:transform .3s,opacity .3s;
}
.burger span:first-child{top:18px}
.burger span:last-child{top:25px}
body.nav-open .burger span:first-child{transform:translateY(3.5px) rotate(45deg)}
body.nav-open .burger span:last-child{transform:translateY(-3.5px) rotate(-45deg)}

/* 页头 */
.page-hero{
  position:relative;color:var(--inv1);overflow:hidden;
  background:linear-gradient(90deg,rgba(11,38,33,.94) 0%,rgba(11,38,33,.74) 52%,rgba(20,17,14,.5) 100%),
             url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding:132px 0 64px;
}
.page-hero .hero-tag{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--inv2);margin-bottom:20px;
}
.page-hero .hero-tag::before{content:"";width:28px;height:1px;background:var(--copper-soft)}
.page-hero h1{color:#fff;max-width:14em}
.page-hero .hero-sub{
  margin-top:22px;max-width:720px;color:var(--inv2);font-size:17px;line-height:1.9;
}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:34px;padding-top:22px;
  border-top:1px solid var(--line-dark);
}
.hero-meta li{display:flex;flex-direction:column;gap:4px}
.hero-meta .k{font-size:12.5px;letter-spacing:.08em;color:var(--inv2)}
.hero-meta .v{font-family:var(--mono);font-size:19px;color:#fff;font-variant-numeric:tabular-nums}

/* 子导航 */
.subnav{
  position:sticky;top:74px;z-index:1020;background:var(--bg);
  border-bottom:1px solid var(--line);
}
.subnav-inner{display:flex;gap:10px;padding:16px 0;overflow-x:auto;scrollbar-width:none}
.subnav-inner::-webkit-scrollbar{display:none}
.subnav a{
  flex:0 0 auto;display:inline-flex;align-items:center;min-height:38px;padding:0 18px;
  border:1px solid var(--line);border-radius:999px;font-size:13.5px;color:var(--t2);
  background:var(--card);transition:all .25s;
}
.subnav a:hover{border-color:var(--ink);color:var(--ink)}
.subnav a.active{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:600}

/* 通用块头 */
.block-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.block-head p{color:var(--t2);margin-top:14px;max-width:620px}
.link-more{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--ink);
  border-bottom:1px solid var(--line);padding-bottom:3px;transition:border-color .25s,color .25s;
}
.link-more:hover{border-color:var(--copper);color:var(--copper)}
.link-more::after{content:"→";font-size:13px}

/* 前置准备 */
.prep-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
.prep-item{
  padding:32px 26px 32px 0;border-right:1px solid var(--line);
}
.prep-item:last-child{border-right:0}
.prep-item .no{
  font-family:var(--serif);font-size:44px;line-height:1;color:rgba(16,53,46,.16);
  font-variant-numeric:tabular-nums;
}
.prep-item h3{margin:14px 0 10px;font-size:18px}
.prep-item p{color:var(--t2);font-size:15px;margin:0}

/* 指标条 */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh1);overflow:hidden;
}
.stat-strip li{padding:30px 28px;border-right:1px solid var(--line)}
.stat-strip li:last-child{border-right:0}
.stat-strip .num{
  font-family:var(--mono);font-size:30px;line-height:1.1;color:var(--ink);
  font-variant-numeric:tabular-nums;
}
.stat-strip .lbl{font-size:13px;color:var(--t3);margin-top:8px;letter-spacing:.02em}

/* 时间轴 */
.timeline{position:relative;margin-top:16px}
.timeline::before{
  content:"";position:absolute;left:27px;top:14px;bottom:36px;width:1px;background:var(--line);
}
.tl-item{position:relative;padding-left:92px;margin-bottom:64px}
.tl-item:last-child{margin-bottom:0}
.tl-dot{
  position:absolute;left:0;top:0;width:56px;height:56px;border-radius:50%;
  background:var(--card);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:17px;color:var(--copper);
  font-variant-numeric:tabular-nums;box-shadow:var(--sh1);
}
.tl-body{display:grid;grid-template-columns:1.12fr 1fr;gap:36px;align-items:center}
.tl-text h3{margin-bottom:12px}
.tl-text h3 .k{
  display:inline-block;font-family:var(--sans);font-size:12.5px;font-weight:600;
  letter-spacing:.08em;color:var(--copper);margin-right:12px;vertical-align:2px;
}
.tl-text p{color:var(--t2);font-size:15.6px}
.tl-fig{margin:0}
.tl-fig img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);
  border:1px solid var(--line);transition:transform .45s cubic-bezier(.2,.6,.2,1);
}
.tl-item:hover .tl-fig img{transform:scale(1.02)}
.tl-fig figcaption{font-size:13px;color:var(--t3);margin-top:12px}

/* 核验清单卡片 */
.check-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh1);padding:44px;
}
.check-list{margin-top:26px}
.check-list li{
  display:flex;gap:18px;padding:20px 0;border-top:1px solid var(--line);
}
.check-list li:last-child{border-bottom:1px solid var(--line)}
.check-list .mark{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;border:1px solid var(--copper-soft);
  color:var(--copper);font-size:12px;display:flex;align-items:center;justify-content:center;
  margin-top:5px;
}
.check-list strong{display:block;font-size:16px;color:var(--ink);font-weight:600;margin-bottom:4px}
.check-list span{color:var(--t2);font-size:15px;line-height:1.8}

/* 侧栏式提示 */
.note-row{
  display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:28px;
}
.note-card{
  background:var(--bg-alt);border-left:2px solid var(--copper);border-radius:0 var(--r-card) var(--r-card) 0;
  padding:26px 30px;
}
.note-card h4{font-size:16px;margin-bottom:10px;font-family:var(--sans);font-weight:600;color:var(--ink)}
.note-card p{color:var(--t2);font-size:14.6px;margin:0}

/* FAQ */
.faq-list{border-top:1px solid var(--line)}
.qa-item{border-bottom:1px solid var(--line)}
.qa-btn{
  width:100%;display:flex;align-items:flex-start;gap:22px;
  background:transparent;border:0;padding:26px 0;text-align:left;cursor:pointer;
}
.qa-btn .idx{
  font-family:var(--mono);font-size:13px;color:var(--t3);flex:0 0 34px;
  padding-top:6px;font-variant-numeric:tabular-nums;
}
.qa-btn .q{
  flex:1;font-family:var(--serif);font-size:19px;line-height:1.55;color:var(--ink);
  transition:color .25s;
}
.qa-btn:hover .q{color:var(--copper)}
.qa-btn .sign{position:relative;flex:0 0 18px;height:18px;margin-top:10px}
.qa-btn .sign::before,.qa-btn .sign::after{
  content:"";position:absolute;background:var(--ink);transition:transform .3s,opacity .3s;
}
.qa-btn .sign::before{left:0;top:8.5px;width:18px;height:1px}
.qa-btn .sign::after{left:8.5px;top:0;width:1px;height:18px}
.qa-btn[aria-expanded="true"] .sign::after{transform:scaleY(0);opacity:0}
.qa-body{padding:0 0 28px 56px;color:var(--t2);font-size:15.6px;max-width:820px}
.qa-body p{margin-bottom:.9em}

/* CTA 表单 */
.cta-band{
  background:var(--dark);color:var(--inv1);padding:88px 0;
}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.cta-band h2{color:#fff}
.cta-band .lead{color:var(--inv2);max-width:100%}
.cta-points{margin-top:34px;border-top:1px solid var(--line-dark)}
.cta-points li{
  display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--line-dark);
  font-size:15px;color:var(--inv2);
}
.cta-points li b{color:#fff;font-weight:600;font-family:var(--mono);font-size:14px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px 28px}
.field{position:relative;display:flex;flex-direction:column}
.field.full{grid-column:1 / -1}
.field label{
  font-size:12.5px;letter-spacing:.08em;color:var(--inv2);margin-bottom:8px;
}
.field input,.field textarea{
  width:100%;background:transparent;border:0;border-bottom:1px solid var(--line-dark);
  color:#fff;font-size:15.5px;padding:10px 2px;outline:none;
  transition:border-color .3s,box-shadow .3s;border-radius:0;
  font-family:var(--sans);
}
.field textarea{resize:vertical;min-height:88px;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:rgba(201,195,183,.5)}
.field input:focus,.field textarea:focus{
  border-bottom-color:var(--copper-soft);box-shadow:0 1px 0 0 var(--copper-soft);
}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:50px;padding:0 34px;background:var(--copper);color:#fff;border:0;
  border-radius:var(--r-btn);font-size:15px;letter-spacing:.03em;cursor:pointer;
  transition:background .3s,box-shadow .3s,transform .3s;
}
.btn-main:hover{background:var(--copper-soft);box-shadow:inset 0 -2px 0 0 rgba(20,17,14,.35)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:50px;padding:0 30px;background:transparent;color:var(--ink);
  border:1px solid var(--ink);border-radius:var(--r-btn);font-size:15px;
  transition:background .3s,color .3s;
}
.btn-ghost:hover{background:var(--ink);color:#fff}
.form-foot{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:20px}
.form-note{font-size:12.5px;color:var(--t3);color:rgba(201,195,183,.8);line-height:1.7;margin:0;min-height:24px}
.btn-main:focus-visible,.btn-ghost:focus-visible,.nav-cta:focus-visible,.subnav a:focus-visible{
  outline:2px solid var(--copper-soft);outline-offset:3px;
}

/* 继续了解 */
.next-links{display:flex;flex-wrap:wrap;gap:40px;align-items:center}
.next-links a{
  display:inline-flex;align-items:center;gap:12px;font-family:var(--serif);font-size:19px;color:var(--ink);
  border-bottom:1px solid var(--line);padding-bottom:6px;transition:border-color .25s,color .25s;
}
.next-links a:hover{border-color:var(--copper);color:var(--copper)}
.next-links a span{font-family:var(--mono);font-size:13px;color:var(--t3)}

/* 页脚 */
.site-footer{background:var(--ink-deep);color:var(--inv2);padding:80px 0 0;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:0;
  border-bottom:1px solid var(--line-dark);padding-bottom:56px;
}
.footer-col{padding-right:32px;border-right:1px solid var(--line-dark)}
.footer-col:last-child{border-right:0;padding-right:0}
.footer-logo{font-family:var(--serif);font-size:22px;color:#fff;font-weight:700;margin-bottom:18px}
.footer-logo em{font-style:normal;color:var(--copper-soft)}
.footer-desc{font-size:14px;line-height:1.9;color:var(--inv2);max-width:340px;margin:0}
.footer-title{
  font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:#fff;
  margin-bottom:20px;font-weight:600;
}
.footer-links li{margin-bottom:12px}
.footer-links a{font-size:14.5px;color:var(--inv2);transition:color .25s,border-color .25s;border-bottom:1px solid transparent;padding-bottom:2px}
.footer-links a:hover{color:var(--inv1);border-color:var(--inv1)}
.footer-info li{font-size:14px;line-height:1.8;margin-bottom:14px;color:var(--inv2)}
.footer-info span{display:block;font-size:12.5px;color:var(--t3);color:rgba(201,195,183,.6);letter-spacing:.06em;margin-bottom:2px}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
  padding:26px 0 34px;font-size:12.5px;color:rgba(201,195,183,.7);
}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s cubic-bezier(.2,.6,.2,1),transform .6s cubic-bezier(.2,.6,.2,1)}
.reveal.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .tl-item:hover .tl-fig img{transform:none}
  *{transition-duration:.001ms !important;animation-duration:.001ms !important}
}

/* 响应式 */
@media (max-width:1199px){
  .prep-grid{grid-template-columns:repeat(2,1fr)}
  .prep-item{padding:28px 22px 28px 0}
  .prep-item:nth-child(2){border-right:0;padding-right:0}
  .prep-item:nth-child(3),.prep-item:nth-child(4){border-top:1px solid var(--line)}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat-strip li:nth-child(2){border-right:0}
  .stat-strip li:nth-child(1),.stat-strip li:nth-child(2){border-bottom:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:44px 0}
  .footer-col:nth-child(2){border-right:0}
}
@media (max-width:991px){
  .nav-links{
    position:fixed;left:0;right:0;top:74px;bottom:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--bg);padding:8px 24px 40px;
    transform:translateX(100%);visibility:hidden;
    transition:transform .35s cubic-bezier(.2,.6,.2,1),visibility .35s;
    overflow-y:auto;
  }
  body.nav-open .nav-links{transform:translateX(0);visibility:visible}
  .nav-links li{border-bottom:1px solid var(--line)}
  .nav-links a{display:block;padding:20px 0;font-size:17px;color:var(--ink)}
  .nav-links a::after{display:none}
  .nav-links a.active{color:var(--copper)}
  .site-nav nav{flex:1;justify-content:flex-start}
  .nav-cta{display:none}
  .burger{display:block}
  .page-hero{padding:104px 0 56px}
  .section{padding:72px 0}
  .tl-body{grid-template-columns:1fr;gap:24px}
  .tl-item{padding-left:76px}
  .cta-grid{grid-template-columns:1fr;gap:44px}
  .note-row{grid-template-columns:1fr}
  .check-panel{padding:32px 24px}
}
@media (max-width:767px){
  body{font-size:16px}
  .wrap{padding:0 18px}
  h1{font-size:clamp(26px,7.4vw,34px)}
  .section{padding:56px 0}
  .subnav{top:66px}
  .nav-inner{height:66px}
  .nav-links{top:66px}
  .logo{font-size:18px}
  .hero-meta{gap:14px 20px}
  .hero-meta .v{font-size:17px}
  .prep-grid{grid-template-columns:1fr;border-top:0}
  .prep-item{border-right:0 !important;border-top:1px solid var(--line);padding:24px 0 !important}
  .prep-item:last-child{border-bottom:1px solid var(--line)}
  .stat-strip{grid-template-columns:1fr}
  .stat-strip li{border-right:0 !important;border-bottom:1px solid var(--line)}
  .stat-strip li:last-child{border-bottom:0}
  .tl-item{padding-left:0;margin-bottom:48px}
  .timeline::before{display:none}
  .tl-dot{position:static;margin-bottom:18px}
  .block-head{flex-direction:column;align-items:flex-start;margin-bottom:32px}
  .qa-btn{gap:14px;padding:22px 0}
  .qa-btn .q{font-size:17px}
  .qa-body{padding-left:0;padding-bottom:24px}
  .form-grid{grid-template-columns:1fr}
  .cta-band{padding:64px 0}
  .footer-grid{grid-template-columns:1fr;gap:36px;padding-bottom:40px}
  .footer-col{border-right:0;padding-right:0;padding-bottom:28px;border-bottom:1px solid var(--line-dark)}
  .footer-col:last-child{border-bottom:0;padding-bottom:0}
  .footer-bottom{flex-direction:column}
}

/* roulang page: article */
:root{
  --ink:#10352E;
  --ink-deep:#0B2621;
  --ink-soft:#1D4C43;
  --copper:#C2571F;
  --copper-soft:#E07A3E;
  --bg:#F7F4EF;
  --card:#FFFFFF;
  --bg-alt:#EFEAE1;
  --dark:#14110E;
  --text:#1A1A18;
  --text-2:#5A5A54;
  --text-3:#8A867D;
  --line:#E3DED5;
  --line-dark:rgba(243,239,232,.14);
  --inv:#F3EFE8;
  --inv-2:#C9C3B7;
  --r-card:4px;
  --r-img:6px;
  --r-btn:2px;
  --sh-1:0 1px 2px rgba(20,17,14,.04);
  --sh-2:0 14px 32px -14px rgba(20,17,14,.14);
  --serif:"Noto Serif SC","Source Han Serif SC",Georgia,"Songti SC",serif;
  --sans:"Noto Sans SC",system-ui,-apple-system,"Segoe UI","PingFang 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(--bg);color:var(--text);
  font-family:var(--sans);font-size:16.5px;line-height:1.85;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .25s ease,border-color .25s ease}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--copper);outline-offset:3px}
.wrap{max-width:1240px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.wrap{max-width:1320px}}
::selection{background:rgba(194,87,31,.18)}

/* ============ 导航 ============ */
.site-nav{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,244,239,.94);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:28px;height:74px}
.logo{
  flex:0 0 auto;font-family:var(--serif);font-size:20px;font-weight:600;
  letter-spacing:.02em;color:var(--ink);white-space:nowrap;line-height:1.2;
}
.logo em{font-style:normal;color:var(--copper)}
.nav-inner > nav{flex:1 1 auto;display:flex;justify-content:center}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;min-height:44px;
  padding:6px 0;font-size:14.5px;letter-spacing:.02em;color:var(--text-2);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;
  background:var(--ink);transform:scaleX(0);transform-origin:left;
  transition:transform .28s cubic-bezier(.2,.6,.2,1);
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink);font-weight:500}
.nav-links a.active::after{transform:scaleX(1)}
.nav-cta{
  flex:0 0 auto;margin-left:auto;display:inline-flex;align-items:center;justify-content:center;
  min-height:40px;padding:0 20px;border:1px solid var(--ink);border-radius:var(--r-btn);
  font-size:13.5px;letter-spacing:.06em;color:var(--ink);background:transparent;
  transition:background .3s ease,color .3s ease;
}
.nav-cta:hover{background:var(--ink);color:#fff}
.burger{
  display:none;flex-direction:column;justify-content:center;gap:6px;
  width:44px;height:44px;padding:0;margin-left:auto;
}
.burger span{display:block;width:22px;height:1.5px;background:var(--ink);margin-left:auto;transition:transform .3s ease}

/* ============ 通用组件 ============ */
.badge-cat{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:999px;background:var(--bg-alt);color:var(--ink);
  font-size:12.5px;letter-spacing:.06em;
}
.btn-primary{
  position:relative;display:inline-flex;align-items:center;justify-content:center;
  min-height:48px;padding:14px 30px;border-radius:var(--r-btn);overflow:hidden;
  background:var(--ink);color:#fff;font-size:15px;letter-spacing:.04em;
  transition:background .3s ease,transform .3s ease,color .3s ease;
}
.btn-primary::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--copper);transform:scaleX(0);transform-origin:left;
  transition:transform .3s ease;
}
.btn-primary:hover{background:var(--ink-deep);color:#fff;transform:translateY(-1px)}
.btn-primary:hover::after{transform:scaleX(1)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:48px;padding:14px 30px;border:1px solid var(--text);
  border-radius:var(--r-btn);color:var(--text);background:transparent;
  font-size:15px;letter-spacing:.04em;transition:background .3s ease,color .3s ease,border-color .3s ease;
}
.btn-ghost:hover{background:var(--ink);border-color:var(--ink);color:#fff}
.btn-ghost-light{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:48px;padding:14px 30px;border:1px solid rgba(243,239,232,.36);
  border-radius:var(--r-btn);color:var(--inv);background:transparent;
  font-size:15px;letter-spacing:.04em;transition:background .3s ease,border-color .3s ease,color .3s ease;
}
.btn-ghost-light:hover{background:rgba(243,239,232,.08);border-color:var(--inv);color:#fff}
.text-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--ink);
  border-bottom:1px solid rgba(16,53,46,.32);padding-bottom:2px;
  transition:border-color .25s ease,color .25s ease;
}
.text-link:hover{color:var(--copper);border-bottom-color:var(--copper)}
.section-eyebrow{
  font-size:12.5px;letter-spacing:.14em;color:var(--copper);
  text-transform:uppercase;margin-bottom:14px;
}
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s cubic-bezier(.2,.6,.2,1),transform .6s cubic-bezier(.2,.6,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ============ 文章头部 ============ */
.article-top{padding:30px 0 34px;border-bottom:1px solid var(--line)}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:12.5px;letter-spacing:.05em;color:var(--text-3);
}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--ink)}
.crumb .sep{color:var(--line)}
.crumb .now{color:var(--text-2)}
.article-title{
  font-family:var(--serif);font-weight:600;
  font-size:clamp(26px,3.4vw,40px);line-height:1.3;letter-spacing:-.01em;
  margin:20px 0 0;max-width:900px;color:var(--ink);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:22px;font-size:12.5px;letter-spacing:.06em;color:var(--text-3);
}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line);display:inline-block}

/* ============ 正文布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,740px) 220px;
  gap:72px;justify-content:center;padding:56px 0 96px;
}
.article-body{font-size:17px;line-height:1.85;color:var(--text);max-width:740px;min-width:0}
.article-body p{margin:0 0 1.35em}
.article-body > *:last-child{margin-bottom:0}
.article-body h2{
  position:relative;font-family:var(--serif);font-weight:600;
  font-size:clamp(21px,2.2vw,27px);line-height:1.42;letter-spacing:-.01em;
  margin:2.4em 0 1em;padding-left:20px;color:var(--ink);
}
.article-body h2:first-child{margin-top:0}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.62em;
  width:9px;height:2px;background:var(--copper);
}
.article-body h3{
  font-size:20px;line-height:1.5;font-weight:600;
  margin:2em 0 .7em;color:var(--ink);
}
.article-body h4{font-size:17px;font-weight:600;margin:1.7em 0 .6em;color:var(--ink)}
.article-body a{color:var(--ink);border-bottom:1px solid rgba(16,53,46,.34)}
.article-body a:hover{color:var(--copper);border-bottom-color:var(--copper)}
.article-body ul{margin:0 0 1.5em;padding-left:1.35em;list-style:disc}
.article-body ul li{margin-bottom:.6em}
.article-body ul li::marker{color:var(--copper-soft)}
.article-body ol{counter-reset:olc;margin:0 0 1.5em;list-style:none;padding-left:0}
.article-body ol > li{counter-increment:olc;position:relative;padding-left:2.3em;margin-bottom:.7em}
.article-body ol > li::before{
  content:counter(olc,decimal-leading-zero);
  position:absolute;left:0;top:.3em;
  font-size:13px;font-weight:600;line-height:1.6;color:var(--copper);
  letter-spacing:.04em;
}
.article-body blockquote{
  margin:1.8em 0;padding:.15em 0 .15em 22px;
  border-left:2px solid var(--copper);
  font-family:var(--serif);font-style:italic;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{max-width:100%;height:auto;border-radius:var(--r-img);margin:1.8em 0}
.article-body figure{margin:1.8em 0}
.article-body figure img{margin:0}
.article-body figcaption{font-size:13px;color:var(--text-3);margin-top:10px;text-align:center;line-height:1.6}
.article-body table{width:100%;border-collapse:collapse;margin:1.8em 0;font-size:15px}
.article-body th,.article-body td{
  border:0;border-bottom:1px solid var(--line);
  padding:13px 16px 13px 0;text-align:left;vertical-align:top;line-height:1.7;
}
.article-body th{
  font-size:12.5px;font-weight:600;letter-spacing:.08em;
  color:var(--ink);border-bottom-color:var(--ink);
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.9em;background:var(--bg-alt);color:var(--ink);
  padding:2px 6px;border-radius:2px;
}
.article-body pre{
  background:var(--dark);color:var(--inv);padding:20px 22px;
  border-radius:var(--r-card);overflow-x:auto;
  font-size:13.5px;line-height:1.75;margin:1.8em 0;
}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);
  background:var(--card);padding:64px 28px;text-align:center;
}
.empty-state .es-title{font-family:var(--serif);font-size:22px;color:var(--ink);font-weight:600}
.empty-state p{margin:12px 0 0;font-size:15px;color:var(--text-2)}
.empty-state .btn-ghost{margin-top:26px}

/* ============ 目录 ============ */
.article-side{min-width:0}
.toc{position:sticky;top:104px}
.toc-title{
  font-size:12.5px;letter-spacing:.14em;color:var(--text-3);
  padding-bottom:12px;margin-bottom:14px;border-bottom:1px solid var(--line);
}
.toc ol{list-style:none;margin:0;padding:0}
.toc li{margin:0}
.toc a{
  display:block;padding:8px 0 8px 14px;
  border-left:2px solid transparent;
  font-size:13.5px;line-height:1.6;color:var(--text-2);
  transition:color .25s ease,border-color .25s ease,background .25s ease;
}
.toc a:hover{color:var(--ink);border-left-color:var(--copper-soft)}
.toc a.active{color:var(--ink);border-left-color:var(--copper);font-weight:500}
.toc .lvl3 a{padding-left:28px;font-size:13px;color:var(--text-3)}
.toc-empty{font-size:13px;color:var(--text-3);line-height:1.7}

/* ============ 文章尾部 ============ */
.article-foot{
  margin-top:60px;padding-top:30px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:20px;
}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;flex:1 1 320px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:999px;background:var(--bg-alt);color:var(--ink);
  font-size:12.5px;letter-spacing:.04em;
}
.share-row{display:flex;align-items:center;gap:16px;font-size:13px;color:var(--text-3)}
.share-row a{color:var(--text-2);border-bottom:1px solid transparent;padding-bottom:1px}
.share-row a:hover{color:var(--copper);border-bottom-color:var(--copper)}
.article-back{margin-top:26px}

/* ============ 相关推荐 ============ */
.related{padding:0 0 96px}
.related-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;padding-bottom:22px;margin-bottom:36px;border-bottom:1px solid var(--line);
}
.related-head h2{
  font-family:var(--serif);font-size:clamp(22px,2.4vw,30px);
  font-weight:600;line-height:1.35;color:var(--ink);letter-spacing:-.01em;
}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card-post{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:border-color .3s ease,transform .3s ease,box-shadow .3s ease;
}
.card-post:hover{
  border-color:rgba(16,53,46,.4);transform:translateY(-2px);box-shadow:var(--sh-2);
}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-alt)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .55s cubic-bezier(.2,.6,.2,1)}
.card-post:hover .card-media img{transform:scale(1.04)}
.card-media::after{
  content:"";position:absolute;inset:0;background:rgba(20,17,14,.28);
  opacity:0;transition:opacity .4s ease;
}
.card-post:hover .card-media::after{opacity:1}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto}
.card-body h3{
  font-family:var(--serif);font-size:18.5px;line-height:1.5;font-weight:600;
  color:var(--ink);margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  font-size:14.5px;line-height:1.7;color:var(--text-2);margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px solid var(--line);
  font-size:12.5px;letter-spacing:.05em;color:var(--text-3);
}
.card-foot .go{color:var(--ink);transition:color .25s ease}
.card-post:hover .card-foot .go{color:var(--copper)}

/* ============ 深色 CTA ============ */
.cta-band{background:var(--dark);color:var(--inv);padding:76px 0}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:36px}
.cta-title{
  font-family:var(--serif);font-size:clamp(22px,2.5vw,32px);
  font-weight:600;line-height:1.35;letter-spacing:-.01em;color:#fff;
}
.cta-desc{margin-top:14px;font-size:15px;line-height:1.8;color:var(--inv-2);max-width:600px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-deep);color:var(--inv-2);padding:76px 0 0;font-size:14px}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:40px;padding-bottom:56px;
}
.footer-col{min-width:0}
.footer-col + .footer-col{border-left:1px solid var(--line-dark);padding-left:40px}
.footer-logo{
  font-family:var(--serif);font-size:20px;font-weight:600;
  color:var(--inv);letter-spacing:.02em;line-height:1.3;
}
.footer-logo em{font-style:normal;color:var(--copper-soft)}
.footer-desc{margin-top:16px;font-size:13.5px;line-height:1.8;color:var(--inv-2);max-width:340px}
.footer-title{
  font-size:12.5px;letter-spacing:.14em;color:var(--inv);
  margin-bottom:18px;text-transform:uppercase;
}
.footer-links li{margin-bottom:11px}
.footer-links a{color:var(--inv-2);border-bottom:1px solid transparent;padding-bottom:1px}
.footer-links a:hover{color:var(--inv);border-bottom-color:var(--inv)}
.footer-info li{margin-bottom:13px;font-size:13.5px;line-height:1.7;color:var(--inv-2)}
.footer-info li span{display:block;font-size:12px;letter-spacing:.08em;color:#8A867D;margin-bottom:2px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding:24px 0;border-top:1px solid var(--line-dark);
  font-size:12.5px;letter-spacing:.04em;color:var(--inv-2);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,740px);gap:0}
  .article-side{display:none}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991px){
  .nav-inner{gap:16px;height:68px}
  .nav-inner > nav{
    position:fixed;left:0;right:0;top:68px;
    display:none;background:var(--bg);
    border-bottom:1px solid var(--line);
    padding:6px 24px 20px;justify-content:flex-start;
    max-height:calc(100vh - 68px);overflow-y:auto;
  }
  .nav-inner > nav.open{display:block}
  .nav-links{flex-direction:column;align-items:stretch;gap:0}
  .nav-links li{border-bottom:1px solid var(--line)}
  .nav-links li:last-child{border-bottom:0}
  .nav-links a{padding:16px 0;font-size:15px;width:100%}
  .nav-links a::after{display:none}
  .nav-links a.active{color:var(--copper)}
  .burger{display:flex}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}
  .footer-col + .footer-col{border-left:0;padding-left:0}
  .related{padding-bottom:76px}
}
@media (max-width:767px){
  .wrap{padding:0 18px}
  .article-top{padding:22px 0 26px}
  .article-layout{padding:40px 0 72px}
  .article-body{font-size:16.5px}
  .rel-grid{grid-template-columns:minmax(0,1fr)}
  .related-head{flex-direction:column;align-items:flex-start;gap:14px}
  .cta-band{padding:56px 0}
  .cta-actions{width:100%}
  .cta-actions .btn-primary,.cta-actions .btn-ghost-light{flex:1 1 auto}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .article-foot{gap:16px}
}
@media (max-width:520px){
  .nav-cta{padding:0 14px;font-size:12.5px}
  .logo{font-size:17px}
  .article-title{font-size:24px}
  .empty-state{padding:48px 18px}
}
@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{
  --ink:#10352E;
  --ink-deep:#0B2621;
  --ink-soft:#1D4C43;
  --copper:#C2571F;
  --copper-light:#E07A3E;
  --bg:#F7F4EF;
  --surface:#FFFFFF;
  --surface-2:#EFEAE1;
  --dark:#14110E;
  --text:#1A1A18;
  --text-2:#5A5A54;
  --text-3:#8A867D;
  --line:#E3DED5;
  --line-dark:rgba(243,239,232,.14);
  --radius-card:4px;
  --radius-img:6px;
  --radius-btn:2px;
  --shadow-1:0 1px 2px rgba(20,17,14,.04);
  --shadow-2:0 14px 32px -14px rgba(20,17,14,.14);
  --serif:"Noto Serif SC","Source Han Serif SC",Georgia,"Times New Roman",serif;
  --sans:"Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .25s ease,border-color .25s ease,opacity .25s ease}
button{font-family:inherit}
h1,h2,h3,h4{margin:0}
p{margin:0 0 1.35em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--copper);outline-offset:3px}

.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.wrap{max-width:1320px}}
@media (max-width:575px){.wrap{padding:0 16px}}

/* ---------- 导航 ---------- */
.site-nav{
  position:sticky;top:0;z-index:80;
  background:rgba(247,244,239,.95);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:30px;min-height:72px}
.logo{
  font-family:var(--serif);
  font-size:19px;
  font-weight:600;
  letter-spacing:.01em;
  color:var(--ink);
  white-space:nowrap;
}
.logo em{font-style:normal;color:var(--copper)}
.nav-links{
  display:flex;align-items:center;gap:26px;
  list-style:none;margin:0 0 0 auto;padding:0;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:14.5px;
  letter-spacing:.02em;
  color:var(--text-2);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--ink);transform:scaleX(0);transform-origin:left;
  transition:transform .28s cubic-bezier(.2,.6,.2,1);
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink);font-weight:500}

.nav-cta{
  position:relative;overflow:hidden;z-index:0;
  border:1px solid var(--ink);
  color:var(--ink);
  padding:10px 20px;
  border-radius:var(--radius-btn);
  font-size:14px;
  letter-spacing:.02em;
  white-space:nowrap;
}
.nav-cta::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:var(--ink);transform:scaleX(0);transform-origin:left;
  transition:transform .3s cubic-bezier(.2,.6,.2,1);
}
.nav-cta:hover{color:#fff}
.nav-cta:hover::before{transform:scaleX(1)}

.burger{
  display:none;width:44px;height:44px;padding:0;
  border:0;background:transparent;cursor:pointer;
}
.burger span{
  display:block;width:22px;height:1.5px;margin:6px auto;
  background:var(--ink);transition:transform .3s ease;
}
body.nav-open .burger span:nth-child(1){transform:translateY(4px) rotate(45deg)}
body.nav-open .burger span:nth-child(2){transform:translateY(-3.5px) rotate(-45deg)}

/* ---------- 分类页头 ---------- */
.cat-hero{position:relative;border-bottom:1px solid var(--line)}
.hero-media{position:relative;aspect-ratio:21/9;min-height:360px;max-height:580px;overflow:hidden}
.hero-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,38,33,.9) 0%,rgba(11,38,33,.66) 50%,rgba(20,17,14,.42) 100%);
}
.hero-content{position:absolute;inset:0;display:flex;align-items:flex-end}
.hero-content .wrap{padding-bottom:54px;padding-top:64px}
.crumb{font-size:12.5px;letter-spacing:.04em;color:rgba(243,239,232,.7);margin-bottom:20px}
.crumb a{color:rgba(243,239,232,.7)}
.crumb a:hover{color:#F3EFE8}
.crumb .sep{margin:0 9px;opacity:.5}
.hero-eyebrow{
  display:inline-block;margin-bottom:18px;padding:5px 15px;
  font-size:12.5px;letter-spacing:.14em;
  color:var(--copper-light);
  border:1px solid rgba(224,122,62,.5);
  border-radius:999px;
}
.hero-title{
  font-family:var(--serif);
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.22;
  letter-spacing:-.01em;
  color:#F3EFE8;
  margin:0 0 14px;
  max-width:760px;
}
.hero-sub{
  color:rgba(243,239,232,.84);
  font-size:17px;
  line-height:1.75;
  max-width:680px;
  margin:0 0 26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 按钮 ---------- */
.btn-solid,.btn-line,.btn-copper,.btn-outline{
  display:inline-block;
  padding:14px 28px;
  border-radius:var(--radius-btn);
  font-size:15px;
  letter-spacing:.02em;
  cursor:pointer;
  transition:background-color .3s ease,color .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.btn-solid{background:var(--ink);border:1px solid var(--ink);color:#fff}
.btn-solid:hover{background:var(--ink-deep);color:#fff;box-shadow:inset 0 -2px 0 var(--copper)}
.btn-line{background:transparent;border:1px solid rgba(243,239,232,.5);color:#F3EFE8}
.btn-line:hover{background:rgba(243,239,232,.12);border-color:#F3EFE8;color:#fff}
.btn-copper{background:var(--copper);border:1px solid var(--copper);color:#fff}
.btn-copper:hover{background:#A94818;border-color:#A94818;color:#fff;box-shadow:inset 0 -2px 0 rgba(243,239,232,.35)}
.btn-outline{background:transparent;border:1px solid var(--text);color:var(--text)}
.btn-outline:hover{background:var(--text);border-color:var(--text);color:var(--bg)}

/* ---------- 子导航 ---------- */
.subnav{
  position:sticky;top:72px;z-index:60;
  background:var(--bg);
  border-bottom:1px solid var(--line);
}
.subnav ul{
  display:flex;gap:10px;list-style:none;margin:0;padding:14px 0;
  overflow-x:auto;scrollbar-width:none;
}
.subnav ul::-webkit-scrollbar{display:none}
.subnav a{
  display:inline-block;white-space:nowrap;
  padding:7px 15px;
  font-size:13.5px;
  color:var(--text-2);
  border:1px solid var(--line);
  border-radius:999px;
  transition:border-color .25s ease,color .25s ease,background-color .25s ease;
}
.subnav a:hover{border-color:var(--ink);color:var(--ink)}
.subnav a.on{background:var(--ink);border-color:var(--ink);color:#fff}

/* ---------- 板块 ---------- */
.section{padding:96px 0}
.section.tight{padding:76px 0}
.section.soft{background:var(--surface-2)}
.section.dark{background:var(--dark);color:#F3EFE8}
.section[id]{scroll-margin-top:150px}
.sec-head{max-width:760px;margin-bottom:52px}
.eyebrow{
  display:block;
  font-size:12.5px;
  letter-spacing:.16em;
  color:var(--copper);
  margin-bottom:12px;
}
.sec-title{
  font-family:var(--serif);
  font-size:clamp(24px,3vw,36px);
  line-height:1.3;
  letter-spacing:-.01em;
  color:var(--ink);
  margin:0 0 16px;
}
.sec-desc{color:var(--text-2);max-width:720px;margin:0}
.section.dark .sec-title{color:#F3EFE8}
.section.dark .sec-desc{color:#C9C3B7}

/* ---------- 阶段编号 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{border-top:1px solid var(--line);padding-top:24px}
.step-num{
  display:block;
  font-family:var(--serif);
  font-size:44px;
  line-height:1;
  color:#CFC7B9;
  font-variant-numeric:tabular-nums;
  margin-bottom:18px;
}
.step h3{font-size:19px;font-weight:600;color:var(--ink);margin:0 0 10px}
.step p{margin:0;font-size:15px;line-height:1.8;color:var(--text-2)}

/* ---------- 交错图文 ---------- */
.alt-list-wrap{padding-top:8px}
.alt-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
  padding:56px 0;
  border-top:1px solid var(--line);
}
.alt-row:first-child{border-top:0;padding-top:0}
.alt-row.flip .alt-figure{order:2}
.alt-figure{
  position:relative;
  aspect-ratio:5/4;
  overflow:hidden;
  border-radius:var(--radius-img);
  border:1px solid var(--line);
  background:var(--surface-2);
}
.alt-figure img{width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.2,.6,.2,1)}
.alt-row:hover .alt-figure img{transform:scale(1.03)}
.alt-index{
  display:block;
  font-family:var(--serif);
  font-size:13px;
  letter-spacing:.16em;
  color:var(--copper);
  margin-bottom:12px;
}
.alt-body h3{
  font-family:var(--serif);
  font-size:clamp(20px,2.2vw,26px);
  line-height:1.4;
  color:var(--ink);
  margin:0 0 14px;
}
.alt-body p{color:var(--text-2);margin:0 0 16px}
.alt-list{list-style:none;padding:0;margin:0}
.alt-list li{
  position:relative;
  padding-left:20px;
  margin-bottom:9px;
  font-size:15px;
  color:var(--text-2);
}
.alt-list li::before{
  content:"";position:absolute;left:0;top:13px;
  width:8px;height:1px;background:var(--copper);
}

/* ---------- 资料清单卡片 ---------- */
.mat-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.mat-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px 30px;
  box-shadow:var(--shadow-1);
  transition:transform .3s cubic-bezier(.2,.6,.2,1),border-color .3s ease,box-shadow .3s ease;
}
.mat-card:hover{transform:translateY(-2px);border-color:rgba(16,53,46,.4);box-shadow:var(--shadow-2)}
.mat-tag{
  display:inline-block;
  margin-bottom:14px;
  padding:4px 12px;
  font-size:12.5px;
  letter-spacing:.04em;
  border-radius:999px;
  background:var(--surface-2);
  color:var(--ink);
}
.mat-card h3{font-size:16.5px;font-weight:600;color:var(--ink);margin:0 0 10px}
.mat-card p{margin:0;font-size:14.5px;line-height:1.8;color:var(--text-2)}

/* ---------- 时效数据卡 ---------- */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line-dark);
  border:1px solid var(--line-dark);
}
.metric{background:var(--dark);padding:34px 28px}
.metric b{
  display:block;
  font-family:var(--serif);
  font-size:38px;
  line-height:1;
  color:var(--copper-light);
  font-variant-numeric:tabular-nums;
  margin-bottom:12px;
}
.metric span{font-size:14px;line-height:1.7;color:#C9C3B7}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);margin-top:8px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  gap:20px;
  padding:22px 0;
  background:none;
  border:0;
  text-align:left;
  cursor:pointer;
  font-size:17px;
  font-weight:500;
  color:var(--text);
  transition:color .25s ease;
}
.faq-q:hover{color:var(--ink)}
.faq-q .idx{
  flex:0 0 30px;
  font-family:var(--serif);
  font-size:14px;
  letter-spacing:.06em;
  color:var(--copper);
  font-variant-numeric:tabular-nums;
}
.faq-q .sign{
  position:relative;
  flex:0 0 16px;
  width:16px;height:16px;
  margin-left:auto;
}
.faq-q .sign::before,
.faq-q .sign::after{
  content:"";position:absolute;background:var(--ink);
  transition:transform .3s ease;
}
.faq-q .sign::before{left:0;right:0;top:7.5px;height:1px}
.faq-q .sign::after{top:0;bottom:0;left:7.5px;width:1px}
.faq-item.is-open .sign::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{
  margin:0 0 24px;
  padding-left:50px;
  max-width:820px;
  color:var(--text-2);
  font-size:15.5px;
}

/* ---------- CTA 表单 ---------- */
.cta-band{background:var(--dark);color:#F3EFE8;padding:96px 0}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:start}
.cta-title{
  font-family:var(--serif);
  font-size:clamp(24px,3vw,36px);
  line-height:1.3;
  letter-spacing:-.01em;
  color:#F3EFE8;
  margin:0 0 18px;
}
.cta-text{color:#C9C3B7;max-width:520px;margin:0 0 28px}
.cta-points{list-style:none;padding:0;margin:0}
.cta-points li{
  position:relative;
  padding-left:22px;
  margin-bottom:10px;
  font-size:15px;
  color:#C9C3B7;
}
.cta-points li::before{
  content:"";position:absolute;left:0;top:14px;
  width:9px;height:1px;background:var(--copper-light);
}
.field{position:relative;margin-bottom:30px}
.field input,
.field textarea{
  width:100%;
  padding:15px 0 10px;
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line-dark);
  color:#F3EFE8;
  font-family:var(--sans);
  font-size:15.5px;
  line-height:1.6;
  outline:none;
  transition:border-color .3s ease;
}
.field textarea{resize:vertical;min-height:88px}
.field label{
  position:absolute;
  left:0;top:15px;
  font-size:15.5px;
  color:#8A867D;
  pointer-events:none;
  transition:top .25s ease,font-size .25s ease,color .25s ease,letter-spacing .25s ease;
}
.field input:focus,
.field textarea:focus{border-bottom-color:var(--copper-light)}
.field input:focus ~ label,
.field input:not(:placeholder-shown) ~ label,
.field textarea:focus ~ label,
.field textarea:not(:placeholder-shown) ~ label{
  top:-10px;
  font-size:12.5px;
  letter-spacing:.06em;
  color:#C9C3B7;
}
.form-note{margin-top:16px;font-size:12.5px;line-height:1.7;color:#8A867D}

/* ---------- 继续了解 ---------- */
.next-links{
  display:flex;
  flex-wrap:wrap;
  gap:36px;
  padding-top:30px;
  border-top:1px solid var(--line);
  margin-top:56px;
}
.next-links a{
  font-size:15px;
  color:var(--ink);
  border-bottom:1px solid var(--line);
  padding-bottom:4px;
}
.next-links a:hover{border-color:var(--copper);color:var(--copper)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:#C9C3B7;padding:76px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr}
.footer-col{padding:0 32px;border-left:1px solid var(--line-dark)}
.footer-col:first-child{border-left:0;padding-left:0}
.footer-col:last-child{padding-right:0}
.footer-logo{
  font-family:var(--serif);
  font-size:19px;
  font-weight:600;
  color:#F3EFE8;
  margin-bottom:16px;
}
.footer-logo em{font-style:normal;color:var(--copper-light)}
.footer-desc{font-size:14px;line-height:1.85;color:#C9C3B7;max-width:330px;margin:0}
.footer-title{
  font-size:12.5px;
  letter-spacing:.14em;
  color:#8A867D;
  margin-bottom:18px;
}
.footer-links,.footer-info{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14.5px;color:#C9C3B7}
.footer-links a:hover{color:#F3EFE8;text-decoration:underline;text-underline-offset:3px}
.footer-info li{margin-bottom:13px;font-size:14px;line-height:1.7;color:#C9C3B7}
.footer-info span{display:block;font-size:12.5px;color:#8A867D;margin-bottom:2px}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:16px;
  margin-top:58px;
  padding:22px 0;
  border-top:1px solid var(--line-dark);
  font-size:12.5px;
  color:#8A867D;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s cubic-bezier(.2,.6,.2,1),transform .6s cubic-bezier(.2,.6,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .step-num{font-size:38px}
  .alt-row{gap:48px}
}

@media (max-width:991px){
  .nav-links{
    position:fixed;
    inset:0;
    z-index:70;
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    margin:0;
    padding:96px 24px 40px;
    background:var(--bg);
    border-bottom:1px solid var(--line);
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    transform:translateY(-8px);
    transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
  }
  body.nav-open .nav-links{opacity:1;visibility:visible;transform:none}
  .nav-links li{width:100%;border-bottom:1px solid var(--line)}
  .nav-links a{display:block;width:100%;padding:18px 0;font-size:16px}
  .nav-links a::after{display:none}
  .nav-links a.active{color:var(--ink);font-weight:600}
  .nav-cta{margin-left:auto;padding:9px 15px;font-size:13.5px}
  .burger{display:block}
  .steps{grid-template-columns:1fr 1fr;gap:22px}
  .alt-row{grid-template-columns:1fr;gap:30px;padding:44px 0}
  .alt-row.flip .alt-figure{order:0}
  .metrics{grid-template-columns:1fr 1fr}
  .cta-grid{grid-template-columns:1fr;gap:48px}
  .cta-band{padding:76px 0}
  .section{padding:72px 0}
  .section.tight{padding:60px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px 32px}
  .footer-col{border-left:0;padding:0}
  .subnav{top:72px}
}

@media (max-width:767px){
  .hero-media{aspect-ratio:4/3;min-height:400px;max-height:620px}
  .hero-content .wrap{padding-bottom:44px;padding-top:56px}
  .mat-grid{grid-template-columns:1fr}
  .sec-head{margin-bottom:38px}
}

@media (max-width:575px){
  body{font-size:16px}
  .section{padding:56px 0}
  .section.tight{padding:52px 0}
  .steps{grid-template-columns:1fr;gap:20px}
  .metrics{grid-template-columns:1fr}
  .metric{padding:26px 22px}
  .hero-media{aspect-ratio:3/4;min-height:460px}
  .hero-title{font-size:clamp(26px,7vw,34px)}
  .hero-sub{font-size:15.5px}
  .btn-solid,.btn-line,.btn-copper,.btn-outline{padding:13px 22px;font-size:14.5px}
  .footer-grid{grid-template-columns:1fr;gap:34px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-a p{padding-left:0}
  .faq-q{gap:14px;font-size:16px}
  .alt-row{padding:36px 0}
  .next-links{gap:22px}
}

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

/* roulang page: category3 */
:root{
  --ink:#10352E;
  --ink-dark:#0B2621;
  --ink-light:#1D4C43;
  --copper:#C2571F;
  --copper-light:#E07A3E;
  --bg:#F7F4EF;
  --surface:#FFFFFF;
  --surface-2:#EFEAE1;
  --surface-3:#FCFAF7;
  --dark:#14110E;
  --t1:#1A1A18;
  --t2:#5A5A54;
  --t3:#8A867D;
  --line:#E3DED5;
  --line-dark:rgba(243,239,232,.14);
  --num:#C9C3B7;
  --serif:"Noto Serif SC","Source Han Serif SC",Georgia,"Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --r-card:4px;
  --r-img:6px;
  --r-btn:2px;
  --sh1:0 1px 2px rgba(20,17,14,.04);
  --sh2:0 14px 32px -14px rgba(20,17,14,.14);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--t1);
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--ink);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--copper);}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1.35em;}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;color:var(--t1);margin:0;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--copper-light);outline-offset:3px;}

.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.wrap{max-width:1320px;}}
@media (max-width:575px){.wrap{padding:0 16px;}}

/* ============ 导航 ============ */
.site-nav{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,239,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:74px;}
.logo{
  font-family:var(--serif);font-size:19px;letter-spacing:.02em;color:var(--t1);
  white-space:nowrap;
}
.logo em{font-style:normal;color:var(--copper);}
.logo:hover{color:var(--t1);}
.nav-links{display:flex;align-items:center;gap:30px;}
.nav-links a{
  position:relative;display:inline-block;padding:10px 0;
  font-size:14.5px;letter-spacing:.02em;color:var(--t2);white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;
  background:var(--ink);transform:scaleX(0);transform-origin:left;
  transition:transform .28s cubic-bezier(.2,.6,.2,1);
}
.nav-links a:hover{color:var(--t1);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--t1);}
.nav-links a.active::after{transform:scaleX(1);background:var(--copper);}
.nav-cta{
  display:inline-flex;align-items:center;height:40px;padding:0 20px;
  border:1px solid var(--t1);border-radius:var(--r-btn);
  font-size:14px;letter-spacing:.04em;color:var(--t1);background:transparent;
  transition:background .3s ease,color .3s ease,box-shadow .3s ease;
}
.nav-cta:hover{background:var(--ink);color:#F3EFE8;box-shadow:inset 0 -2px 0 0 var(--copper);}
.burger{
  display:none;width:44px;height:44px;border:0;background:transparent;
  flex-direction:column;justify-content:center;align-items:flex-end;gap:7px;padding:0;cursor:pointer;
}
.burger span{display:block;width:24px;height:1.5px;background:var(--t1);transition:transform .3s ease,opacity .3s ease;}
.burger[aria-expanded="true"] span:first-child{transform:translateY(4.25px) rotate(45deg);}
.burger[aria-expanded="true"] span:last-child{transform:translateY(-4.25px) rotate(-45deg);}

@media (max-width:991px){
  .nav-inner{height:64px;}
  .burger{display:flex;}
  .nav-cta{display:none;}
  .nav-links{
    position:fixed;left:0;right:0;top:64px;bottom:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--bg);padding:8px 24px 48px;overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .28s ease,transform .28s ease,visibility .28s;
    border-top:1px solid var(--line);
  }
  .nav-links.open{opacity:1;visibility:visible;transform:none;}
  .nav-links li{border-bottom:1px solid var(--line);}
  .nav-links a{display:block;padding:18px 0;font-size:16px;color:var(--t1);}
  .nav-links a::after{display:none;}
  .nav-links a.active{color:var(--copper);}
}

/* ============ 页头 Banner ============ */
.page-head{
  position:relative;
  background-image:linear-gradient(105deg,rgba(11,38,33,.90) 0%,rgba(11,38,33,.72) 42%,rgba(20,17,14,.42) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  color:#F3EFE8;
  padding:78px 0 46px;
}
.page-head .crumbs{
  font-size:12.5px;letter-spacing:.03em;color:rgba(243,239,232,.66);
  margin-bottom:26px;
}
.page-head .crumbs a{color:rgba(243,239,232,.66);}
.page-head .crumbs a:hover{color:#F3EFE8;}
.page-head .crumbs span.sep{margin:0 8px;color:rgba(243,239,232,.36);}
.head-label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--copper-light);margin-bottom:18px;
}
.head-label::before{content:"";width:26px;height:1px;background:var(--copper-light);}
.page-head h1{
  font-size:clamp(30px,4.4vw,50px);line-height:1.2;color:#F7F4EF;
  letter-spacing:-.01em;max-width:16em;margin-bottom:22px;
}
.page-head .lead{
  max-width:760px;font-size:16.5px;line-height:1.85;color:rgba(243,239,232,.82);
  margin:0;
}
.head-meta{
  display:flex;flex-wrap:wrap;gap:14px 34px;margin-top:34px;
  padding-top:22px;border-top:1px solid var(--line-dark);
}
.head-meta div{font-size:13.5px;color:rgba(243,239,232,.7);}
.head-meta strong{
  display:block;font-family:var(--serif);font-size:22px;color:#F7F4EF;
  font-variant-numeric:tabular-nums;letter-spacing:.01em;
}

/* ============ 锚点子导航 ============ */
.anchor-bar{
  background:var(--surface);border-bottom:1px solid var(--line);
  position:sticky;top:74px;z-index:40;
}
@media (max-width:991px){.anchor-bar{top:64px;}}
.anchor-inner{display:flex;gap:10px;overflow-x:auto;padding:14px 0;scrollbar-width:none;}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-inner a{
  flex:0 0 auto;display:inline-flex;align-items:center;height:36px;padding:0 18px;
  border:1px solid var(--line);border-radius:999px;
  font-size:13px;letter-spacing:.02em;color:var(--t2);background:var(--surface);
  transition:border-color .25s ease,color .25s ease,background .25s ease;
}
.anchor-inner a:hover{border-color:var(--ink);color:var(--ink);background:var(--surface-3);}
.anchor-inner a.on{border-color:var(--ink);color:var(--ink);background:var(--surface-2);}

/* ============ 板块通用 ============ */
.sec{padding:96px 0;}
.sec-alt{background:var(--surface-2);}
@media (max-width:991px){.sec{padding:72px 0;}}
@media (max-width:575px){.sec{padding:56px 0;}}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  padding-bottom:24px;border-bottom:1px solid var(--line);margin-bottom:48px;
}
.sec-alt .sec-head{border-bottom-color:#DCD5C9;}
.kicker{
  display:block;font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--copper);margin-bottom:12px;
}
.sec-title{font-size:clamp(24px,3vw,36px);line-height:1.3;letter-spacing:-.01em;max-width:20em;}
.sec-note{font-size:14px;color:var(--t3);max-width:300px;text-align:right;line-height:1.7;}
@media (max-width:767px){
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:34px;}
  .sec-note{text-align:left;}
}

/* ============ 数据卡 ============ */
.stat-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);border-left:1px solid var(--line);
  background:var(--surface);border-radius:var(--r-card);overflow:hidden;
}
.stat{
  border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:36px 26px 32px;
}
.stat .num{
  font-family:var(--serif);font-size:40px;line-height:1.1;color:var(--ink);
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.stat .num small{font-size:16px;color:var(--t3);margin-left:6px;letter-spacing:0;}
.stat .cap{font-size:13px;letter-spacing:.08em;color:var(--copper);margin-top:14px;}
.stat p{margin:10px 0 0;font-size:14.5px;color:var(--t2);line-height:1.75;}
@media (max-width:991px){.stat-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:575px){.stat-grid{grid-template-columns:1fr;}}

/* ============ 对照卡 ============ */
.compare{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh1);
}
.compare-head{display:grid;grid-template-columns:1.05fr 1.55fr;background:var(--ink);}
.compare-head span{
  padding:16px 26px;font-size:12.5px;letter-spacing:.1em;color:rgba(243,239,232,.86);
}
.compare-head span+span{border-left:1px solid rgba(243,239,232,.16);}
.compare-row{display:grid;grid-template-columns:1.05fr 1.55fr;border-top:1px solid var(--line);transition:background .25s ease;}
.compare-row:hover{background:var(--surface-3);}
.compare-row .c-key{
  padding:22px 26px;border-right:1px solid var(--line);
  font-size:15.5px;color:var(--t1);font-weight:600;
}
.compare-row .c-key em{
  display:block;font-style:normal;font-family:var(--sans);
  font-size:12.5px;letter-spacing:.08em;color:var(--copper);margin-bottom:6px;font-weight:500;
}
.compare-row .c-val{padding:22px 26px;font-size:15px;color:var(--t2);}
.compare-row .c-val strong{color:var(--t1);font-variant-numeric:tabular-nums;}
@media (max-width:767px){
  .compare-head{display:none;}
  .compare-row{grid-template-columns:1fr;}
  .compare-row .c-key{border-right:0;background:var(--surface-2);padding-bottom:14px;}
  .compare-row .c-val{padding-top:14px;}
}

/* ============ 核验步骤 ============ */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.step{padding:0 30px 0 0;position:relative;}
.step+.step{padding-left:30px;border-left:1px solid var(--line);}
.step .idx{
  font-family:var(--serif);font-size:48px;line-height:1;color:var(--num);
  font-variant-numeric:tabular-nums;margin-bottom:20px;
}
.step h3{font-size:19px;margin-bottom:12px;line-height:1.5;}
.step p{font-size:14.8px;color:var(--t2);line-height:1.8;margin:0 0 14px;}
.step .tag{
  display:inline-block;font-size:12.5px;letter-spacing:.05em;
  padding:5px 13px;border-radius:999px;background:var(--surface-2);color:var(--ink);
}
@media (max-width:991px){
  .step-grid{grid-template-columns:repeat(2,1fr);gap:34px 0;}
  .step:nth-child(3){padding-left:0;border-left:0;}
  .step:nth-child(3),.step:nth-child(4){border-top:1px solid var(--line);padding-top:34px;}
}
@media (max-width:575px){
  .step-grid{grid-template-columns:1fr;gap:0;}
  .step,.step+.step{padding:28px 0;border-left:0;border-top:1px solid var(--line);}
  .step:first-child{border-top:0;padding-top:0;}
}

/* ============ 保护清单 ============ */
.shield-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.shield{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:36px 32px;box-shadow:var(--sh1);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.shield:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:rgba(16,53,46,.4);}
.shield h3{font-size:20px;margin-bottom:8px;}
.shield .sub{font-size:13.5px;color:var(--t3);margin-bottom:22px;}
.shield ul li{
  display:flex;gap:14px;padding:14px 0;border-top:1px solid var(--line);
  font-size:15px;color:var(--t2);line-height:1.75;
}
.shield ul li:first-child{border-top:0;padding-top:0;}
.shield ul li b{color:var(--t1);font-weight:600;}
.shield .dot{
  flex:0 0 auto;width:6px;height:6px;border-radius:999px;background:var(--copper-light);margin-top:11px;
}
.shield.strong{border-color:rgba(194,87,31,.35);}
.shield.strong .dot{background:var(--copper);}
@media (max-width:767px){.shield-grid{grid-template-columns:1fr;}}

/* ============ 图文证据块 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split-media{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);background:var(--surface-2);}
.split-media img{width:100%;aspect-ratio:5/4;object-fit:cover;transition:transform .5s cubic-bezier(.2,.6,.2,1);}
.split-media:hover img{transform:scale(1.03);}
.split-media .badge-float{
  position:absolute;right:16px;bottom:16px;
  padding:6px 14px;border-radius:999px;
  background:rgba(20,17,14,.72);color:#F3EFE8;font-size:12.5px;letter-spacing:.05em;
}
.split-body h2{font-size:clamp(24px,3vw,34px);line-height:1.3;margin-bottom:20px;letter-spacing:-.01em;}
.split-body p{color:var(--t2);font-size:15.5px;}
.record-list{border-top:1px solid var(--line);margin-top:28px;}
.record-list li{
  display:flex;align-items:baseline;gap:20px;
  padding:16px 0;border-bottom:1px solid var(--line);
}
.record-list .fig{
  font-family:var(--serif);font-size:22px;color:var(--ink);
  font-variant-numeric:tabular-nums;min-width:96px;
}
.record-list .txt{font-size:14.8px;color:var(--t2);line-height:1.7;}
@media (max-width:991px){
  .split{grid-template-columns:1fr;gap:34px;}
}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:0.62fr 1.38fr;gap:56px;}
.faq-aside{position:sticky;top:150px;align-self:start;}
.faq-aside h2{font-size:clamp(24px,3vw,34px);line-height:1.3;margin-bottom:16px;letter-spacing:-.01em;}
.faq-aside p{font-size:14.8px;color:var(--t2);}
.faq-aside .mini-cta{
  display:inline-flex;align-items:center;gap:10px;margin-top:8px;
  font-size:14.5px;color:var(--ink);border-bottom:1px solid var(--ink);padding-bottom:3px;
}
.faq-aside .mini-cta:hover{color:var(--copper);border-bottom-color:var(--copper);}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);}
.accordion-item:first-of-type{border-top:1px solid var(--line);}
.accordion-button{
  display:flex;align-items:baseline;gap:20px;
  background:transparent!important;box-shadow:none!important;border-radius:0!important;
  padding:24px 0;font-family:var(--serif);font-size:17.5px;line-height:1.5;color:var(--t1);
}
.accordion-button:not(.collapsed){color:var(--ink);}
.accordion-button .q-idx{
  font-family:var(--sans);font-size:12.5px;letter-spacing:.08em;color:var(--copper);min-width:26px;
}
.accordion-button::after{
  content:"+";background-image:none!important;width:auto!important;height:auto!important;
  margin-left:auto;font-size:20px;line-height:1;color:var(--copper);
  transform:none!important;transition:transform .3s ease;
}
.accordion-button:not(.collapsed)::after{content:"−";}
.accordion-body{
  padding:0 0 26px 46px;font-size:15.3px;color:var(--t2);line-height:1.85;max-width:760px;
}
@media (max-width:991px){
  .faq-wrap{grid-template-columns:1fr;gap:30px;}
  .faq-aside{position:static;}
}
@media (max-width:575px){
  .accordion-body{padding-left:0;}
}

/* ============ CTA 深色区 ============ */
.cta-band{background:var(--dark);color:#F3EFE8;padding:88px 0;}
@media (max-width:991px){.cta-band{padding:66px 0;}}
.cta-grid{display:grid;grid-template-columns:0.95fr 1.05fr;gap:64px;align-items:start;}
.cta-band h2{
  color:#F7F4EF;font-size:clamp(24px,3vw,36px);line-height:1.3;margin-bottom:18px;letter-spacing:-.01em;
}
.cta-band p{color:rgba(243,239,232,.74);font-size:15.5px;}
.cta-points{margin-top:30px;border-top:1px solid var(--line-dark);}
.cta-points li{
  display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line-dark);
  font-size:14.8px;color:rgba(243,239,232,.8);
}
.cta-points .num{font-family:var(--serif);color:var(--copper-light);font-variant-numeric:tabular-nums;}
.form-line{position:relative;margin-bottom:30px;}
.form-line input,
.form-line textarea,
.form-line select{
  width:100%;background:transparent;border:0;border-bottom:1px solid rgba(243,239,232,.26);
  border-radius:0;padding:16px 0 10px;color:#F3EFE8;font-size:15.5px;
  transition:border-color .25s ease,box-shadow .25s ease;appearance:none;
}
.form-line textarea{resize:vertical;min-height:88px;}
.form-line select option{color:#1A1A18;background:#fff;}
.form-line label{
  position:absolute;left:0;top:16px;font-size:15px;color:rgba(243,239,232,.55);
  pointer-events:none;transition:top .24s ease,font-size .24s ease,color .24s ease,letter-spacing .24s ease;
}
.form-line input:focus,
.form-line textarea:focus,
.form-line select:focus{
  outline:none;border-bottom-color:var(--copper-light);
  box-shadow:0 1px 0 0 var(--copper-light);
}
.form-line input:focus+label,
.form-line input:not(:placeholder-shown)+label,
.form-line textarea:focus+label,
.form-line textarea:not(:placeholder-shown)+label{
  top:-4px;font-size:12.5px;letter-spacing:.06em;color:var(--copper-light);
}
.form-line.sel label{top:-4px;font-size:12.5px;letter-spacing:.06em;color:rgba(243,239,232,.6);}
.btn-solid{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:50px;padding:0 32px;border:0;border-radius:var(--r-btn);
  background:var(--copper);color:#FFF6F0;font-size:15px;letter-spacing:.04em;cursor:pointer;
  transition:background .3s ease,box-shadow .3s ease,transform .3s ease;
}
.btn-solid:hover{background:#A94816;box-shadow:inset 0 -2px 0 0 rgba(255,255,255,.35);transform:translateY(-1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  height:50px;padding:0 30px;border:1px solid var(--t1);border-radius:var(--r-btn);
  background:transparent;color:var(--t1);font-size:15px;letter-spacing:.04em;
  transition:background .3s ease,color .3s ease;
}
.btn-ghost:hover{background:var(--ink);color:#F3EFE8;}
.form-tip{font-size:12.5px;color:rgba(243,239,232,.5);line-height:1.7;margin:18px 0 0;min-height:24px;}
@media (max-width:991px){.cta-grid{grid-template-columns:1fr;gap:40px;}}

/* ============ 继续了解 ============ */
.more-links{background:var(--surface);border-top:1px solid var(--line);padding:52px 0;}
.more-inner{display:flex;flex-wrap:wrap;align-items:center;gap:16px 44px;}
.more-label{font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--t3);}
.more-inner a{
  font-family:var(--serif);font-size:17px;color:var(--t1);
  border-bottom:1px solid var(--line);padding-bottom:4px;
  transition:border-color .25s ease,color .25s ease,padding-bottom .25s ease;
}
.more-inner a:hover{color:var(--copper);border-bottom-color:var(--copper);padding-bottom:7px;}
.more-inner a span{font-family:var(--sans);font-size:13px;color:var(--t3);margin-left:10px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(243,239,232,.72);padding:76px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1.25fr;gap:0;}
.footer-col{padding:0 30px;border-left:1px solid var(--line-dark);}
.footer-col:first-child{padding-left:0;border-left:0;}
.footer-col:last-child{padding-right:0;}
.footer-logo{
  font-family:var(--serif);font-size:19px;color:#F7F4EF;letter-spacing:.02em;margin-bottom:18px;
}
.footer-logo em{font-style:normal;color:var(--copper-light);}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(243,239,232,.6);margin:0;}
.footer-title{
  font-family:var(--serif);font-size:15px;color:#F7F4EF;margin-bottom:20px;
  letter-spacing:.04em;
}
.footer-links li{margin-bottom:12px;}
.footer-links a{
  font-size:14.3px;color:rgba(243,239,232,.66);border-bottom:1px solid transparent;padding-bottom:2px;
  transition:color .25s ease,border-color .25s ease;
}
.footer-links a:hover{color:#F3EFE8;border-bottom-color:#F3EFE8;}
.footer-info li{
  font-size:14px;color:rgba(243,239,232,.72);padding-bottom:12px;margin-bottom:12px;
  border-bottom:1px solid var(--line-dark);line-height:1.7;
}
.footer-info li:last-child{border-bottom:0;}
.footer-info li span{
  display:block;font-size:12.5px;letter-spacing:.08em;color:rgba(243,239,232,.42);margin-bottom:4px;
}
.footer-bottom{
  margin-top:60px;border-top:1px solid var(--line-dark);
  padding:24px 0 28px;display:flex;flex-wrap:wrap;gap:10px 30px;justify-content:space-between;
  font-size:12.8px;color:rgba(243,239,232,.46);
}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px 0;}
  .footer-col{padding:0 24px;}
  .footer-col:nth-child(odd){padding-left:0;border-left:0;}
  .footer-col:nth-child(even){padding-right:0;}
}
@media (max-width:575px){
  .site-footer{padding-top:56px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-col{padding:0;border-left:0;border-top:1px solid var(--line-dark);padding-top:26px;}
  .footer-col:first-child{border-top:0;padding-top:0;}
  .footer-bottom{margin-top:40px;flex-direction:column;}
}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s cubic-bezier(.2,.6,.2,1),transform .6s cubic-bezier(.2,.6,.2,1);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  .split-media img,.shield,.btn-solid,.nav-links a::after{transition:none;}
}
section[id]{scroll-margin-top:150px;}

/* roulang page: category5 */
:root{
  --ink:#10352E;
  --ink-deep:#0B2621;
  --ink-soft:#1D4C43;
  --copper:#C2571F;
  --copper-soft:#E07A3E;
  --bg:#F7F4EF;
  --card:#FFFFFF;
  --bg-2:#EFEAE1;
  --dark:#14110E;
  --text:#1A1A18;
  --text-2:#5A5A54;
  --text-3:#8A867D;
  --line:#E3DED5;
  --line-dark:rgba(243,239,232,.14);
  --cream:#F3EFE8;
  --radius:10px;
  --radius-sm:6px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(20,17,14,.04);
  --shadow-2:0 18px 40px -24px rgba(16,53,46,.35);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --sans:"Noto Sans SC",system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--ink);text-decoration:none;transition:color .25s ease,opacity .25s ease}
a:hover{color:var(--copper)}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;color:var(--text);margin:0}
p{margin:0 0 1.35em}
ul{margin:0;padding:0;list-style:none}
button,input,textarea{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--copper-soft);outline-offset:3px}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.wrap{max-width:1320px}}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.eyebrow{
  font-size:12.5px;line-height:1.6;letter-spacing:.16em;text-transform:uppercase;
  color:var(--copper);font-weight:700;margin-bottom:14px;
}
.sec-title{font-size:clamp(24px,3vw,36px);line-height:1.3;letter-spacing:-.01em}
.sec-lead{color:var(--text-2);max-width:720px;margin-top:16px;margin-bottom:0}

/* ============ 导航 ============ */
.site-nav{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,239,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:28px;min-height:74px}
.logo{
  font-family:var(--serif);font-size:19px;font-weight:700;letter-spacing:.01em;
  color:var(--ink);white-space:nowrap;display:inline-flex;align-items:baseline;
}
.logo em{font-style:normal;color:var(--copper);margin-right:1px}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-links a{
  position:relative;font-size:14.5px;letter-spacing:.02em;color:var(--text-2);
  padding:6px 0;display:inline-block;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--ink);
  transform:scaleX(0);transform-origin:left;transition:transform .28s ease;
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink);font-weight:700}
.nav-links a.active::after{transform:scaleX(1)}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:11px 22px;font-size:14px;letter-spacing:.06em;
  color:var(--ink);border:1px solid var(--ink);border-radius:2px;background:transparent;
  transition:background .3s ease,color .3s ease,border-color .3s ease;
}
.nav-cta:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.burger{
  display:none;width:44px;height:44px;border:0;background:transparent;
  flex-direction:column;justify-content:center;gap:6px;cursor:pointer;margin-left:auto;
}
.burger span{display:block;height:1.5px;width:24px;background:var(--ink);transition:transform .3s ease,opacity .3s ease}
@media (max-width:991px){
  .nav-inner{min-height:64px;gap:16px;flex-wrap:wrap}
  .nav-cta{order:3;margin-left:auto}
  .burger{display:flex;order:2}
  .nav-links{
    order:4;flex-basis:100%;flex-direction:column;align-items:stretch;gap:0;
    max-height:0;overflow:hidden;transition:max-height .38s ease;margin-left:0;
  }
  .nav-links.open{max-height:420px}
  .nav-links li{border-top:1px solid var(--line)}
  .nav-links a{display:flex;align-items:center;min-height:52px;font-size:15.5px;color:var(--text)}
  .nav-links a::after{display:none}
  .nav-links a.active{color:var(--copper)}
}

/* ============ 页头横幅 ============ */
.page-hero{
  position:relative;
  min-height:340px;
  display:flex;align-items:flex-end;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,38,33,.62) 0%,rgba(11,38,33,.86) 100%);
}
.page-hero .wrap{position:relative;z-index:2;padding-top:96px;padding-bottom:56px}
.crumb{font-size:12.5px;letter-spacing:.06em;color:rgba(243,239,232,.72);margin-bottom:18px}
.crumb a{color:rgba(243,239,232,.72)}
.crumb a:hover{color:#fff}
.crumb span{margin:0 8px;opacity:.55}
.page-hero h1{
  color:#fff;font-size:clamp(28px,4vw,46px);line-height:1.22;letter-spacing:-.01em;max-width:820px;
}
.page-hero .hero-note{
  color:rgba(243,239,232,.82);font-size:16px;max-width:660px;margin-top:18px;margin-bottom:0;
}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:var(--radius-pill);
  font-size:12.5px;letter-spacing:.06em;
  background:rgba(243,239,232,.12);color:var(--cream);border:1px solid rgba(243,239,232,.24);
}
.chip i{font-size:11px;color:var(--copper-soft)}

/* ============ 子导航 ============ */
.subnav{
  position:sticky;top:74px;z-index:40;
  background:rgba(247,244,239,.95);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
@media (max-width:991px){.subnav{top:64px}}
.subnav-inner{display:flex;gap:10px;overflow-x:auto;padding:14px 0;scrollbar-width:none}
.subnav-inner::-webkit-scrollbar{display:none}
.subnav a{
  flex:0 0 auto;font-size:13.5px;letter-spacing:.03em;color:var(--text-2);
  padding:7px 16px;border:1px solid var(--line);border-radius:var(--radius-pill);
  background:#fff;transition:all .25s ease;
}
.subnav a:hover{border-color:var(--ink);color:var(--ink)}
.subnav a.active{background:var(--ink);border-color:var(--ink);color:#fff}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section.tight{padding:72px 0}
.section.alt{background:var(--bg-2)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:52px}
.text-link{
  font-size:14.5px;color:var(--ink);
  border-bottom:1px solid var(--line);
  padding-bottom:2px;transition:border-color .25s ease,color .25s ease;
}
.text-link i{margin-left:6px;font-size:12px;transition:transform .25s ease}
.text-link:hover{border-color:var(--copper);color:var(--copper)}
.text-link:hover i{transform:translateX(3px)}

/* ============ 时间线卡片流 ============ */
.timeline{position:relative}
.timeline::before{
  content:"";position:absolute;left:86px;top:14px;bottom:14px;width:1px;background:var(--line);
}
.tl-item{display:grid;grid-template-columns:70px 1fr;gap:32px;padding-bottom:34px;position:relative}
.tl-date{
  text-align:right;font-family:var(--serif);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.tl-date .m{font-size:12.5px;letter-spacing:.14em;color:var(--text-3);display:block}
.tl-date .d{font-size:26px;color:var(--ink);line-height:1.2;display:block;font-weight:700}
.tl-item::before{
  content:"";position:absolute;left:81px;top:12px;width:11px;height:11px;border-radius:50%;
  background:var(--bg);border:2px solid var(--copper);
}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:grid;grid-template-columns:260px 1fr;
  box-shadow:var(--shadow-1);transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.tl-card:hover{transform:translateY(-2px);border-color:rgba(16,53,46,.4);box-shadow:var(--shadow-2)}
.tl-card figure{margin:0;overflow:hidden;background:var(--bg-2)}
.tl-card figure img{width:100%;height:100%;min-height:210px;object-fit:cover;transition:transform .5s ease}
.tl-card:hover figure img{transform:scale(1.03)}
.tl-body{padding:26px 28px;display:flex;flex-direction:column;gap:12px}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;padding:5px 13px;border-radius:var(--radius-pill);
  font-size:12.5px;letter-spacing:.05em;background:var(--bg-2);color:var(--ink);
}
.tag.copper{background:rgba(194,87,31,.1);color:var(--copper)}
.tl-body h3{font-size:20px;line-height:1.5}
.tl-body p{color:var(--text-2);font-size:15px;margin:0}
.tl-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.tl-foot .time{font-size:13px;color:var(--text-3)}
@media (max-width:900px){
  .timeline::before,.tl-item::before{display:none}
  .tl-item{grid-template-columns:1fr;gap:14px;padding-bottom:26px}
  .tl-date{display:flex;align-items:baseline;gap:10px;text-align:left}
  .tl-date .d{font-size:20px}
  .tl-card{grid-template-columns:1fr}
  .tl-card figure img{min-height:180px;max-height:220px}
}

/* ============ 服务状态一览 ============ */
.status-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.status-card{padding:30px 26px;border-right:1px solid var(--line);background:#fff;transition:background .3s ease}
.status-card:last-child{border-right:0}
.status-card:hover{background:var(--bg)}
.status-card .label{font-size:13px;color:var(--text-2);margin-bottom:8px}
.status-card .val{
  font-family:var(--serif);font-size:26px;color:var(--ink);
  font-variant-numeric:tabular-nums;line-height:1.3;
}
.status-card .dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#3F7D5C;margin-right:8px;vertical-align:middle}
.status-card .foot{font-size:13px;color:var(--text-3);margin-top:8px;margin-bottom:0}
@media (max-width:991px){
  .status-grid{grid-template-columns:repeat(2,1fr)}
  .status-card:nth-child(2){border-right:0}
  .status-card:nth-child(1),.status-card:nth-child(2){border-bottom:1px solid var(--line)}
}
@media (max-width:560px){
  .status-grid{grid-template-columns:1fr}
  .status-card{border-right:0;border-bottom:1px solid var(--line)}
  .status-card:last-child{border-bottom:0}
}

/* ============ 重点说明 ============ */
.note-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.note-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:34px 32px;box-shadow:var(--shadow-1);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.note-card:hover{transform:translateY(-2px);border-color:rgba(16,53,46,.4);box-shadow:var(--shadow-2)}
.note-card .num{
  font-family:var(--serif);font-size:40px;color:var(--bg-2);line-height:1;font-weight:700;
  display:block;margin-bottom:16px;
}
.note-card h3{font-size:20px;margin-bottom:12px}
.note-card p{color:var(--text-2);font-size:15px;margin-bottom:16px}
.note-list li{
  display:flex;gap:12px;font-size:14.5px;color:var(--text-2);
  padding:9px 0;border-top:1px solid var(--line);
}
.note-list li span:first-child{color:var(--copper);font-variant-numeric:tabular-nums;flex:0 0 auto}
@media (max-width:860px){.note-grid{grid-template-columns:1fr}}

/* ============ FAQ ============ */
.faq{max-width:880px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;
  display:flex;align-items:flex-start;gap:20px;padding:24px 4px;cursor:pointer;
}
.faq-q .idx{
  font-family:var(--serif);font-size:15px;color:var(--text-3);
  font-variant-numeric:tabular-nums;flex:0 0 auto;padding-top:2px;
}
.faq-q .qt{font-family:var(--serif);font-size:18.5px;color:var(--text);flex:1 1 auto;line-height:1.55}
.faq-q .sign{position:relative;width:16px;height:16px;flex:0 0 auto;margin-top:8px}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;background:var(--ink);transition:transform .3s ease,opacity .3s ease;
}
.faq-q .sign::before{left:0;top:7.5px;width:16px;height:1.5px}
.faq-q .sign::after{left:7px;top:0;width:1.5px;height:16px}
.faq-item.open .faq-q .sign::after{transform:scaleY(0);opacity:0}
.faq-item.open .faq-q .qt{color:var(--ink)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a p{
  color:var(--text-2);font-size:15.5px;margin:0;padding:0 4px 26px 39px;
}
@media (max-width:560px){.faq-a p{padding-left:0}}

/* ============ CTA / 表单 ============ */
.cta-band{background:var(--dark);color:var(--cream);padding:96px 0}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,36px);line-height:1.3}
.cta-band .lead{color:rgba(243,239,232,.72);margin-top:16px;font-size:15.5px}
.cta-points{margin-top:28px}
.cta-points li{
  display:flex;gap:14px;padding:14px 0;border-top:1px solid var(--line-dark);
  font-size:14.5px;color:rgba(243,239,232,.8);
}
.cta-points li i{color:var(--copper-soft);margin-top:5px;font-size:12px}
.field{position:relative;margin-bottom:26px}
.field label{
  position:absolute;left:0;top:12px;font-size:15px;color:rgba(243,239,232,.6);
  transition:transform .25s ease,font-size .25s ease,color .25s ease;pointer-events:none;
}
.field input,.field textarea{
  width:100%;background:transparent;border:0;border-bottom:1px solid var(--line-dark);
  padding:12px 0 10px;color:#fff;border-radius:0;transition:border-color .25s ease;
}
.field textarea{resize:vertical;min-height:74px}
.field input:focus,.field textarea:focus{outline:none;border-bottom:2px solid var(--copper-soft)}
.field input:focus+label,.field textarea:focus+label,
.field.filled label{transform:translateY(-20px);font-size:12.5px;color:var(--copper-soft);letter-spacing:.08em}
.btn-solid{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:48px;padding:14px 32px;border:1px solid var(--copper);
  background:var(--copper);color:#fff;border-radius:2px;font-size:15px;letter-spacing:.06em;
  cursor:pointer;transition:background .3s ease,border-color .3s ease;
}
.btn-solid:hover{background:var(--copper-soft);border-color:var(--copper-soft);color:#fff}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:48px;padding:14px 30px;border:1px solid var(--ink);background:transparent;
  color:var(--ink);border-radius:2px;font-size:15px;letter-spacing:.06em;
  transition:background .3s ease,color .3s ease;
}
.btn-ghost:hover{background:var(--ink);color:#fff}
.form-note{font-size:12.5px;color:rgba(243,239,232,.55);margin-top:8px;min-height:24px}
.form-msg{font-size:14px;color:var(--copper-soft);margin-top:14px;min-height:24px}
@media (max-width:900px){.cta-grid{grid-template-columns:1fr;gap:40px}.cta-band{padding:72px 0}}

/* ============ 继续了解 ============ */
.more-links{
  display:flex;flex-wrap:wrap;gap:32px;align-items:center;
  padding:40px 0 0;margin-top:8px;border-top:1px solid var(--line);
}
.more-links .lbl{font-size:12.5px;letter-spacing:.14em;color:var(--text-3);text-transform:uppercase}
.more-links a{font-size:16px;border-bottom:1px solid var(--line);padding-bottom:3px}
.more-links a:hover{border-color:var(--copper);color:var(--copper)}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-deep);color:rgba(243,239,232,.75);padding:80px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-col{border-right:1px solid var(--line-dark);padding-right:32px}
.footer-col:last-child{border-right:0;padding-right:0}
.footer-logo{font-family:var(--serif);font-size:19px;color:#fff;font-weight:700;margin-bottom:16px}
.footer-logo em{font-style:normal;color:var(--copper-soft)}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(243,239,232,.62);margin:0}
.footer-title{font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;color:rgba(243,239,232,.5);margin-bottom:20px}
.footer-links li{margin-bottom:12px}
.footer-links a{font-size:14.5px;color:rgba(243,239,232,.78);border-bottom:1px solid transparent;padding-bottom:2px}
.footer-links a:hover{color:var(--cream);border-color:rgba(243,239,232,.6)}
.footer-info li{font-size:14px;color:rgba(243,239,232,.78);padding:9px 0;border-top:1px solid var(--line-dark);display:flex;gap:12px}
.footer-info li span{color:rgba(243,239,232,.45);flex:0 0 68px}
.footer-bottom{
  margin-top:64px;border-top:1px solid var(--line-dark);padding:24px 0;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  font-size:13px;color:rgba(243,239,232,.5);
}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-col{border-right:0;padding-right:0}
}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr}}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s cubic-bezier(.2,.6,.2,1),transform .6s cubic-bezier(.2,.6,.2,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .section.tight{padding:48px 0}
  .section-head{margin-bottom:34px}
  .wrap{padding:0 16px}
}

/* roulang page: category4 */
:root{
  --ink:#10352E;--ink-deep:#0B2621;--ink-light:#1D4C43;
  --copper:#C2571F;--copper-soft:#E07A3E;
  --bg:#F7F4EF;--surface:#FFFFFF;--surface-2:#EFEAE1;--dark:#14110E;
  --text:#1A1A18;--text-2:#5A5A54;--text-3:#8A867D;
  --line:#E3DED5;--line-dark:rgba(243,239,232,.14);
  --white-1:#F3EFE8;--white-2:#C9C3B7;
  --radius-card:4px;--radius-img:6px;--radius-btn:2px;
  --shadow-1:0 1px 2px rgba(20,17,14,.04);
  --shadow-2:0 14px 32px -14px rgba(20,17,14,.14);
  --serif:"Noto Serif SC","Source Han Serif SC",Georgia,"Songti SC",serif;
  --sans:"Noto Sans SC",system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,SFMono-Regular,"Menlo","Consolas",monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:16.5px;line-height:1.85;font-weight:400;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;letter-spacing:-.01em;margin:0;color:var(--ink)}
p{margin:0 0 1.35em}
ul{margin:0;padding:0}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--copper-soft);outline-offset:3px}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.wrap{max-width:1320px}}
@media (max-width:575px){.wrap{padding:0 16px}}

/* ---------- 导航 ---------- */
.site-nav{position:sticky;top:0;z-index:1030;background:rgba(247,244,239,.94);backdrop-filter:saturate(140%) blur(8px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.logo{font-family:var(--serif);font-size:20px;letter-spacing:.01em;color:var(--ink);white-space:nowrap}
.logo em{font-style:normal;color:var(--copper)}
.nav-links{display:flex;align-items:center;gap:28px;list-style:none}
.nav-links a{position:relative;display:inline-block;padding:6px 0;font-size:14.5px;letter-spacing:.02em;color:var(--text-2);transition:color .25s}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--ink);transform:scaleX(0);transform-origin:left;transition:transform .28s cubic-bezier(.2,.6,.2,1)}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink)}
.nav-cta{border:1px solid var(--ink);border-radius:var(--radius-btn);padding:9px 20px;font-size:14px;color:var(--ink);transition:background .3s,color .3s;white-space:nowrap}
.nav-cta:hover{background:var(--ink);color:#fff}
.burger{display:none;width:44px;height:44px;flex-direction:column;align-items:center;justify-content:center;gap:6px;border-radius:2px}
.burger span{display:block;width:22px;height:1.5px;background:var(--ink);transition:transform .3s ease}
.site-nav.open .burger span:first-child{transform:translateY(3.75px) rotate(45deg)}
.site-nav.open .burger span:last-child{transform:translateY(-3.75px) rotate(-45deg)}

/* ---------- 页头大图 ---------- */
.page-hero{position:relative;overflow:hidden;background:#14110E;min-height:clamp(360px,44vw,540px);display:flex;align-items:flex-end}
.page-hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center}
.page-hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,38,33,.74) 0%,rgba(20,17,14,.9) 100%)}
.page-hero-inner{position:relative;z-index:2;width:100%;padding:96px 0 56px}
.crumbs{font-size:12.5px;letter-spacing:.04em;color:rgba(243,239,232,.62);margin-bottom:22px}
.crumbs a{color:inherit}
.crumbs a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.crumbs i{font-style:normal;margin:0 8px;color:rgba(243,239,232,.35)}
.eyebrow{display:inline-block;font-size:12.5px;letter-spacing:.14em;color:var(--copper-soft);border:1px solid rgba(224,122,62,.5);border-radius:999px;padding:5px 14px;margin-bottom:20px}
.page-hero h1{color:#fff;font-size:clamp(30px,4.4vw,52px);line-height:1.2;max-width:900px}
.page-hero .lede{color:#DED8CB;font-size:17px;line-height:1.85;max-width:760px;margin:22px 0 0}

/* ---------- 子导航 ---------- */
.subnav{position:sticky;top:72px;z-index:1020;background:rgba(247,244,239,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.subnav-inner{display:flex;align-items:center;gap:12px;padding:14px 0;overflow-x:auto;scrollbar-width:none}
.subnav-inner::-webkit-scrollbar{display:none}
.subnav-label{font-size:12.5px;letter-spacing:.08em;color:var(--text-3);white-space:nowrap;padding-right:6px}
.subnav a{flex:0 0 auto;border:1px solid var(--line);border-radius:999px;padding:7px 16px;font-size:13.5px;color:var(--text-2);white-space:nowrap;transition:background .25s,color .25s,border-color .25s}
.subnav a:hover{border-color:var(--ink);color:var(--ink)}
.subnav a.active{background:var(--ink);border-color:var(--ink);color:#fff}

/* ---------- 自查三条 ---------- */
.check-band{background:var(--surface-2);border-bottom:1px solid var(--line)}
.check-band .wrap{padding-top:64px;padding-bottom:64px}
.band-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:36px}
.band-head h2{font-size:clamp(22px,2.4vw,28px)}
.band-head span{font-size:13px;color:var(--text-3)}
.check-grid{display:grid;gap:28px;grid-template-columns:1fr}
.check-item{border-top:1px solid var(--line);padding-top:20px}
.check-item .num{font-family:var(--mono);font-size:12.5px;letter-spacing:.1em;color:var(--copper)}
.check-item h3{font-size:19px;margin:10px 0 8px}
.check-item p{font-size:15px;line-height:1.8;color:var(--text-2);margin:0}

/* ---------- 主体网格 ---------- */
.section{padding:88px 0}
.content-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:56px}
.intro-line{font-size:16px;color:var(--text-2);max-width:720px}
.faq-group{margin-bottom:56px;scroll-margin-top:150px}
.faq-group:last-of-type{margin-bottom:24px}
.group-head{display:flex;align-items:baseline;gap:18px;margin-bottom:8px}
.group-num{font-family:var(--serif);font-size:40px;line-height:1;color:#DAD3C5}
.group-head h2{font-size:clamp(21px,2.2vw,27px)}
.group-note{font-size:14px;color:var(--text-3);margin:0 0 18px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);background:transparent}
.faq-btn{display:flex;align-items:center;gap:16px;width:100%;padding:22px 0;text-align:left;transition:background .25s}
.faq-btn:hover{background:#F1ECE3}
.q-idx{font-family:var(--mono);font-size:12.5px;color:var(--text-3);min-width:26px}
.q-text{flex:1;font-size:17px;font-weight:500;color:var(--text);padding-right:12px}
.q-sign{position:relative;width:14px;height:14px;flex:0 0 14px}
.q-sign::before,.q-sign::after{content:"";position:absolute;background:var(--ink);transition:transform .3s ease,background .3s ease}
.q-sign::before{left:0;right:0;top:6.5px;height:1px}
.q-sign::after{top:0;bottom:0;left:6.5px;width:1px}
.faq-btn[aria-expanded="true"] .q-sign::after{transform:scaleY(0)}
.faq-btn[aria-expanded="true"] .q-sign::before{background:var(--copper)}
.faq-a{padding:0 0 24px 42px;font-size:16px;line-height:1.85;color:var(--text-2)}
.faq-a strong{color:var(--ink);font-weight:500}

/* ---------- 侧栏 ---------- */
.aside{display:flex;flex-direction:column;gap:24px}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-1);transition:border-color .3s,box-shadow .3s}
.side-card:hover{border-color:rgba(16,53,46,.4);box-shadow:var(--shadow-2)}
.side-card h3{font-size:16px;margin-bottom:16px}
.side-img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);border:1px solid var(--line);margin-bottom:20px}
.side-links{list-style:none}
.side-links li+li{border-top:1px solid var(--line)}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 0;font-size:15px;color:var(--text-2);transition:color .25s}
.side-links a::after{content:"→";font-family:var(--mono);font-size:13px;color:var(--text-3);transition:transform .25s,color .25s}
.side-links a:hover{color:var(--ink)}
.side-links a:hover::after{color:var(--copper);transform:translateX(4px)}
.side-info{list-style:none;font-size:14px;color:var(--text-2)}
.side-info li{display:flex;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px solid var(--line)}
.side-info li:last-child{border-bottom:0;padding-bottom:0}
.side-info span{color:var(--text-3);font-size:13px}
.side-note{border-left:2px solid var(--copper);background:#FBF7F2;padding:18px 20px;font-size:14.5px;line-height:1.8;color:var(--text-2);border-radius:0 4px 4px 0}
.side-note p{margin:0}
.side-note p+p{margin-top:10px}

/* ---------- 继续了解 ---------- */
.continue{border-top:1px solid var(--line);padding-top:28px;display:flex;flex-direction:column;gap:14px}
.continue-label{font-size:12.5px;letter-spacing:.1em;color:var(--text-3)}
.link-u{display:inline-block;font-size:15.5px;color:var(--ink);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px;transition:color .25s,text-underline-offset .25s}
.link-u:hover{color:var(--copper);text-underline-offset:7px}

/* ---------- CTA ---------- */
.cta-band{background:var(--dark);color:var(--white-1);padding:96px 0}
.cta-grid{display:grid;grid-template-columns:1fr;gap:56px}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,34px);line-height:1.3}
.cta-band .cta-lede{color:#C9C3B7;margin-top:18px}
.cta-list{list-style:none;margin:34px 0 0}
.cta-list li{display:flex;gap:14px;padding:14px 0;border-top:1px solid var(--line-dark);font-size:14.5px;color:#DED8CB}
.cta-list li b{font-family:var(--mono);font-weight:400;font-size:12.5px;color:var(--copper-soft);line-height:1.9}
.field{margin-bottom:22px}
.field label{display:block;font-size:12.5px;letter-spacing:.08em;color:var(--white-2);margin-bottom:8px}
.field input,.field textarea{width:100%;background:transparent;border:0;border-bottom:1px solid var(--line-dark);border-radius:0;padding:10px 0;font-size:16px;color:var(--white-1);transition:border-color .25s}
.field textarea{resize:vertical;min-height:72px;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#6F6B62}
.field input:focus,.field textarea:focus{outline:none;border-bottom-color:var(--copper);box-shadow:none}
.field input.is-error,.field textarea.is-error{border-bottom-color:var(--copper)}
.field-err{display:block;min-height:18px;font-size:13px;color:var(--copper-soft);margin-top:6px}
.btn-solid{display:inline-block;background:var(--ink);color:#fff;border:1px solid var(--ink);border-radius:var(--radius-btn);padding:14px 28px;font-size:15px;letter-spacing:.02em;cursor:pointer;transition:background .3s,box-shadow .3s,border-color .3s}
.btn-solid:hover{background:var(--ink-deep);border-color:var(--ink-deep);color:#fff;box-shadow:inset 0 -2px 0 var(--copper)}
.btn-copper{background:var(--copper);border-color:var(--copper)}
.btn-copper:hover{background:#A8471A;border-color:#A8471A;box-shadow:inset 0 -2px 0 rgba(255,255,255,.35)}
.btn-ghost{display:inline-block;background:transparent;color:var(--ink);border:1px solid var(--ink);border-radius:var(--radius-btn);padding:14px 28px;font-size:15px;transition:background .3s,color .3s}
.btn-ghost:hover{background:var(--ink);color:#fff}
.form-tip{min-height:24px;font-size:12.5px;letter-spacing:.02em;color:#8A867D;margin:16px 0 0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:var(--white-2);padding:80px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:40px;padding-bottom:56px}
.footer-logo{font-family:var(--serif);font-size:20px;color:var(--white-1);margin-bottom:16px}
.footer-logo em{font-style:normal;color:var(--copper-soft)}
.footer-desc{font-size:14px;line-height:1.8;color:#9A968C;max-width:340px;margin:0}
.footer-title{font-size:12.5px;letter-spacing:.1em;color:#8A867D;margin-bottom:18px}
.footer-links,.footer-info{list-style:none;font-size:14px}
.footer-links li{margin-bottom:12px}
.footer-links a{color:var(--white-2);transition:color .25s}
.footer-links a:hover{color:var(--white-1);text-decoration:underline;text-underline-offset:3px}
.footer-info li{display:flex;gap:10px;color:var(--white-2);line-height:1.7;margin-bottom:12px}
.footer-info span{color:#8A867D;flex:0 0 auto;min-width:70px}
.footer-bottom{border-top:1px solid var(--line-dark);padding:24px 0 32px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12.5px;color:#8A867D}

/* ---------- 动效 ---------- */
.reveal-init .reveal{opacity:0;transform:translateY(14px);transition:opacity .6s cubic-bezier(.2,.6,.2,1),transform .6s cubic-bezier(.2,.6,.2,1)}
.reveal-init .reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (min-width:576px){
  .check-grid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:768px){
  .cta-grid{gap:64px}
}
@media (min-width:992px){
  .content-grid{grid-template-columns:minmax(0,1fr) 320px;gap:64px}
  .aside{position:sticky;top:150px;align-self:start}
  .cta-grid{grid-template-columns:1fr 1fr;gap:72px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:0}
  .footer-col{padding:0 32px;border-left:1px solid var(--line-dark)}
  .footer-col:first-child{border-left:0;padding-left:0}
  .footer-col:last-child{padding-right:0}
}
@media (max-width:991px){
  .nav-inner{min-height:64px}
  .burger{display:flex}
  .nav-cta{display:none}
  .site-nav>nav{position:fixed;left:0;right:0;top:64px;bottom:0;background:var(--bg);padding:8px 24px 130px;overflow-y:auto;display:none;border-top:1px solid var(--line)}
  .site-nav.open>nav{display:block}
  .nav-links{flex-direction:column;align-items:stretch;gap:0}
  .nav-links li{border-bottom:1px solid var(--line)}
  .nav-links a{display:block;padding:16px 0;font-size:17px}
  .nav-links a::after{display:none}
  .nav-links a.active{color:var(--copper)}
  .site-nav.open .nav-cta{display:block;position:fixed;left:24px;right:24px;bottom:32px;text-align:center;padding:14px;background:var(--ink);color:#fff;border-color:var(--ink)}
  .subnav{top:64px}
  .page-hero-inner{padding:72px 0 48px}
  .section{padding:72px 0}
  .check-band .wrap{padding-top:48px;padding-bottom:48px}
  .cta-band{padding:72px 0}
}
@media (max-width:575px){
  body{font-size:16px}
  .page-hero{min-height:auto}
  .page-hero-inner{padding:56px 0 40px}
  .section{padding:56px 0}
  .group-num{font-size:30px}
  .faq-a{padding-left:0}
  .q-idx{min-width:22px}
  .cta-band{padding:56px 0}
  .site-footer{padding-top:56px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal-init .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}