/* roulang page: index */
:root{
  --red:#DE3A22;--red-d:#C9321F;--red-l:#FBE6E1;
  --jade:#2F7E6F;--jade-d:#1F5F55;--jade-l:#E2F0EC;
  --gold:#D99A2B;--gold-l:#F7EBD6;
  --ink:#17120F;--ink-2:#0F0C0A;
  --paper:#FAF7F2;--paper-2:#F2ECE3;--line:#E4DACD;
  --text:#1B1613;--text-2:#4A423B;--text-3:#7A7069;
  --sd1:0 1px 2px rgba(20,14,10,.06),0 6px 18px rgba(20,14,10,.06);
  --sd2:0 18px 48px rgba(20,14,10,.14);
  --r-lg:18px;--r-md:14px;--r-sm:12px;--r-xs:10px;
  --ease:200ms cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.8;color:var(--text);background:var(--paper);font-weight:400}
img{max-width:100%;display:block;border:0}
a{color:var(--jade-d);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--red)}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.25;color:var(--ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
svg{display:block}
:focus-visible{outline:2px solid var(--red);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.wide{max-width:1360px}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{position:fixed;inset:0 0 auto 0;z-index:80;background:transparent;transition:background var(--ease),box-shadow var(--ease),border-color var(--ease);border-bottom:1px solid transparent}
.site-header.is-scrolled{background:rgba(250,247,242,.94);border-bottom-color:var(--line);box-shadow:var(--sd1)}
.nav-bar{height:72px;display:flex;align-items:center;gap:32px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand__mark{width:40px;height:40px;border-radius:12px;background:var(--red);display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 6px 16px rgba(222,58,34,.28)}
.brand__mark svg{width:22px;height:22px;stroke:#fff}
.brand__text{display:flex;flex-direction:column;line-height:1.1}
.brand__main{font-size:17px;font-weight:700;letter-spacing:.02em;color:#fff;transition:color var(--ease)}
.brand__sub{font-size:11px;letter-spacing:2px;color:rgba(255,255,255,.68);transition:color var(--ease)}
.site-header.is-scrolled .brand__main{color:var(--ink)}
.site-header.is-scrolled .brand__sub{color:var(--text-3)}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-links a{position:relative;font-size:15px;font-weight:600;padding:6px 0;color:rgba(255,255,255,.86);transition:color var(--ease)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;height:3px;width:56%;border-radius:2px;background:var(--jade-l);opacity:0;transition:opacity var(--ease),background var(--ease)}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{opacity:.75}
.nav-links a.is-active{color:#fff}
.nav-links a.is-active::after{opacity:1;background:var(--red)}
.site-header.is-scrolled .nav-links a{color:var(--text-2)}
.site-header.is-scrolled .nav-links a:hover{color:var(--ink)}
.site-header.is-scrolled .nav-links a.is-active{color:var(--ink)}
.nav-cta{height:40px;padding:0 18px;border-radius:var(--r-xs);background:var(--red);color:#fff;font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:background var(--ease),transform var(--ease),box-shadow var(--ease)}
.nav-cta:hover{background:var(--red-d);color:#fff;transform:translateY(-2px);box-shadow:var(--sd2)}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.32);align-items:center;justify-content:center;margin-left:12px}
.nav-toggle svg{width:20px;height:20px;stroke:#fff}
.site-header.is-scrolled .nav-toggle{border-color:var(--line)}
.site-header.is-scrolled .nav-toggle svg{stroke:var(--ink)}

.drawer{position:fixed;inset:0 0 0 auto;width:82%;max-width:360px;background:var(--ink);z-index:90;transform:translateX(100%);transition:transform 260ms cubic-bezier(.2,.7,.3,1);display:flex;flex-direction:column;padding:24px}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer__brand{color:#fff;font-size:16px;font-weight:700}
.drawer__close{width:38px;height:38px;border-radius:10px;border:1px solid rgba(255,255,255,.24);display:flex;align-items:center;justify-content:center}
.drawer__close svg{width:18px;height:18px;stroke:#fff}
.drawer nav{display:flex;flex-direction:column}
.drawer nav a{color:rgba(255,255,255,.86);font-size:18px;line-height:56px;border-bottom:1px solid rgba(255,255,255,.08)}
.drawer nav a.is-active{color:#fff;font-weight:700}
.drawer__foot{margin-top:auto}
.drawer__foot .btn{width:100%;justify-content:center}
.scrim{position:fixed;inset:0;background:rgba(15,12,10,.55);z-index:85;opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease)}
.scrim.is-open{opacity:1;visibility:visible}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 22px;border-radius:var(--r-sm);font-size:15px;font-weight:600;transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);white-space:nowrap}
.btn--primary{background:var(--red);color:#fff}
.btn--primary:hover{background:var(--red-d);color:#fff;transform:translateY(-2px);box-shadow:var(--sd2)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;border:2px solid rgba(255,255,255,.7);color:#fff}
.btn--ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn--outline{background:transparent;border:2px solid var(--ink);color:var(--ink)}
.btn--outline:hover{background:var(--ink);color:#fff}
.btn--sm{height:40px;padding:0 16px;font-size:14px;border-radius:var(--r-xs)}
.btn--lg{height:56px;padding:0 28px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--jade-d);border-bottom:2px solid var(--jade-l);padding-bottom:2px;transition:color var(--ease),border-color var(--ease)}
.link-more:hover{color:var(--red);border-color:var(--red-l)}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.04em}
.badge--jade{background:var(--jade-l);color:var(--jade-d)}
.badge--red{background:var(--red);color:#fff}
.badge--gold{background:var(--gold-l);color:#8A5B0C}
.badge--dot::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;animation:pulse 2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.8)}}

/* ---------- hero ---------- */
.hero{position:relative;min-height:620px;display:flex;align-items:center;padding:132px 0 56px;color:#fff;overflow:hidden;background:var(--ink-2)}
.hero__bg{position:absolute;inset:0;background-image:url("/assets/images/backpic/back-1.png");background-size:cover;background-position:center;opacity:.42}
.hero__veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,12,10,.86),rgba(15,12,10,.7) 55%,rgba(23,18,15,.94))}
.hero__arc{position:absolute;left:-10%;right:-10%;bottom:-120px;height:260px;border-radius:50%;border:1px solid rgba(222,58,34,.25);pointer-events:none}
.hero__grid{position:absolute;inset:0;opacity:.06;background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);background-size:88px 88px;pointer-events:none}
.hero .container{position:relative;z-index:2}
.hero__layout{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.hero__tag{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:999px;background:rgba(47,126,111,.28);color:#CFEDE4;font-size:12px;font-weight:600;letter-spacing:.04em;margin-bottom:20px}
.hero h1{font-size:clamp(30px,4.6vw,54px);line-height:1.14;color:#fff;margin-bottom:18px}
.hero__lead{font-size:17px;color:rgba(255,255,255,.82);max-width:520px;margin-bottom:28px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.hero__stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;padding-top:28px;border-top:1px solid rgba(255,255,255,.14)}
.hero__stat b{display:block;font-size:32px;line-height:1.2;color:var(--gold);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.hero__stat span{font-size:14px;color:rgba(255,255,255,.72)}
.hero__media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sd2);aspect-ratio:4/3;border:1px solid rgba(255,255,255,.14)}
.hero__media img{width:100%;height:100%;object-fit:cover}
.hero__flash{position:absolute;top:0;right:0;background:var(--red);color:#fff;font-size:12px;font-weight:600;letter-spacing:.04em;padding:8px 16px;border-bottom-left-radius:14px;clip-path:polygon(0 0,100% 0,100% 100%,12% 100%);z-index:3}
.hero__note{position:absolute;left:18px;bottom:18px;right:18px;background:rgba(15,12,10,.72);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-sm);padding:12px 14px;font-size:13px;color:rgba(255,255,255,.86);z-index:2}

/* ---------- sections ---------- */
.section{padding-block:clamp(56px,7vw,104px)}
.section--alt{background:var(--paper-2)}
.section--dark{background:var(--ink);color:rgba(255,255,255,.8)}
.section--dark h2,.section--dark h3{color:#fff}
.section--line{border-top:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(23px,3vw,34px);position:relative;padding-left:16px}
.sec-head h2::before{content:"";position:absolute;left:0;top:.18em;width:4px;height:28px;background:var(--red);border-radius:2px}
.sec-head p{font-size:15px;color:var(--text-3);max-width:640px;margin-top:10px}
.section--dark .sec-head p{color:rgba(255,255,255,.6)}

/* trust */
.trust{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.trust__item{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:16px 18px;box-shadow:var(--sd1);transition:transform var(--ease),box-shadow var(--ease)}
.trust__item:hover{transform:translateY(-3px);box-shadow:var(--sd2)}
.trust__icon{width:40px;height:40px;border-radius:12px;background:var(--jade-l);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.trust__icon svg{width:20px;height:20px;stroke:var(--jade-d)}
.trust__item b{font-size:15px;display:block}
.trust__item span{font-size:13px;color:var(--text-3)}

/* tiers */
.tiers{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;align-items:end}
.tier{border-radius:var(--r-lg);border:1px solid var(--line);padding:24px 20px;box-shadow:var(--sd1);display:flex;flex-direction:column;gap:14px;transition:transform var(--ease),box-shadow var(--ease)}
.tier:hover{transform:translateY(-3px);box-shadow:var(--sd2)}
.tier--1{background:var(--paper-2);min-height:250px}
.tier--2{background:var(--red-l);min-height:286px}
.tier--3{background:var(--red);color:#fff;min-height:322px;border-color:var(--red)}
.tier--4{background:var(--ink);color:rgba(255,255,255,.84);min-height:358px;border-color:var(--ink)}
.tier--3 h3,.tier--4 h3{color:#fff}
.tier__name{font-size:20px}
.tier__price{font-size:26px;font-weight:700;font-variant-numeric:tabular-nums}
.tier--4 .tier__price{color:var(--gold)}
.tier__price small{font-size:13px;font-weight:500;color:inherit;opacity:.7;margin-left:4px}
.tier__list{display:flex;flex-direction:column;gap:8px;font-size:14px}
.tier__list li{display:flex;gap:8px;align-items:flex-start}
.tier__list li::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.5;margin-top:9px;flex-shrink:0}
.tier .btn{margin-top:auto}
.tier--3 .btn--outline,.tier--4 .btn--outline{border-color:rgba(255,255,255,.7);color:#fff}
.tier--3 .btn--outline:hover,.tier--4 .btn--outline:hover{background:#fff;color:var(--ink)}

/* compare table */
.cmp{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sd1)}
.cmp__table{display:grid;grid-template-columns:1.4fr repeat(3,1fr)}
.cmp__cell{padding:16px 18px;border-bottom:1px solid var(--line);font-size:15px;display:flex;align-items:center;gap:8px}
.cmp__head{position:sticky;top:72px;background:#fff;z-index:5;font-weight:700;color:var(--ink)}
.cmp__head.is-rec{background:var(--red-l)}
.cmp__rec{background:var(--red-l)}
.cmp__cell--rowalt{background:var(--paper)}
.cmp__rowlabel{color:var(--text-2)}
.cmp__foot{display:grid;grid-template-columns:1.4fr repeat(3,1fr);border-top:1px solid var(--line)}
.cmp__foot .cmp__cell{border-bottom:0;align-items:center;justify-content:flex-start}
.cmp__foot .recommend{background:var(--red-l)}
.cmp__mark{width:18px;height:18px;flex-shrink:0}
.cmp__recommend-tag{display:inline-flex;align-items:center;height:20px;padding:0 8px;border-radius:999px;background:var(--red);color:#fff;font-size:11px;font-weight:600;letter-spacing:.04em}
.cmp-cards{display:none}

/* news */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sd1);display:flex;flex-direction:column;transition:transform var(--ease),box-shadow var(--ease)}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sd2)}
.news-card__cover{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--paper-2)}
.news-card__cover img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.news-card:hover .news-card__cover img{transform:scale(1.04)}
.news-card__body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-card__title{font-size:17px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__title a{color:var(--ink)}
.news-card__title a:hover{color:var(--red)}
.news-card__desc{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);padding-top:12px;border-top:1px solid var(--line)}
.news-card__meta em{width:4px;height:4px;border-radius:50%;background:var(--red);display:inline-block;font-style:normal}
.empty-state{border:1px dashed var(--line);border-radius:var(--r-lg);padding:48px 24px;text-align:center;background:#fff;display:flex;flex-direction:column;align-items:center;gap:12px}
.empty-state svg{width:48px;height:48px;stroke:var(--text-3)}
.empty-state p{font-size:14px;color:var(--text-3)}

/* countdown band */
.flash{background:var(--ink);color:rgba(255,255,255,.82);position:relative;overflow:hidden}
.flash .container{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;padding-block:clamp(40px,5vw,64px);flex-wrap:wrap}
.flash__text h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:8px}
.flash__text p{font-size:15px;color:rgba(255,255,255,.66);max-width:520px}
.flash__timer{display:flex;align-items:center;gap:8px;font-variant-numeric:tabular-nums}
.flash__unit{min-width:66px;text-align:center;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-sm);padding:10px 8px}
.flash__unit b{display:block;font-size:28px;color:var(--gold);line-height:1.15;animation:breathe 2s ease-in-out infinite}
.flash__unit span{font-size:12px;color:rgba(255,255,255,.6)}
@keyframes breathe{0%,100%{opacity:1}50%{opacity:.72}}
.flash__gridline{position:absolute;inset:0;opacity:.06;background-image:linear-gradient(rgba(255,255,255,.7) 1px,transparent 1px);background-size:100% 44px;pointer-events:none}

/* form */
.contact{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:start}
.contact__aside h2{font-size:clamp(23px,3vw,34px);margin-bottom:14px}
.contact__aside p{color:var(--text-2);font-size:15px}
.contact__points{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.contact__points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text-2)}
.contact__points li svg{width:20px;height:20px;stroke:var(--jade-d);flex-shrink:0;margin-top:4px}
.contact__meta{margin-top:26px;padding-top:20px;border-top:1px solid var(--line);font-size:14px;color:var(--text-3);display:flex;flex-direction:column;gap:6px}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sd1)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field--full{grid-column:1/-1}
.field label{font-size:14px;font-weight:600;color:var(--text-2)}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:var(--r-xs);background:var(--paper);padding:12px 14px;font-size:15px;transition:border-color var(--ease),box-shadow var(--ease),background var(--ease)}
.field textarea{min-height:110px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--red);box-shadow:0 0 0 3px rgba(222,58,34,.16);background:#fff}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--red-d)}
.field__err{font-size:12px;color:var(--red-d);min-height:16px}
.check{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-2)}
.check input{width:18px;height:18px;margin-top:4px;accent-color:var(--red);flex-shrink:0}
.form-actions{display:flex;align-items:center;gap:16px;margin-top:20px;flex-wrap:wrap}
.form-hint{font-size:13px;color:var(--text-3)}
.form-success{display:none;background:var(--jade-l);border:1px solid #BFDFD5;color:var(--jade-d);border-radius:var(--r-sm);padding:14px 16px;font-size:14px;margin-bottom:18px}
.form-success.is-visible{display:block}

/* faq */
.faq{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq__item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:box-shadow var(--ease),border-color var(--ease)}
.faq__item.is-open{box-shadow:var(--sd1);border-color:#D9CBB8}
.faq__q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;font-size:16px;font-weight:600;text-align:left;color:var(--ink)}
.faq__q svg{width:20px;height:20px;stroke:var(--red);flex-shrink:0;transition:transform var(--ease)}
.faq__item.is-open .faq__q svg{transform:rotate(45deg)}
.faq__a{padding:0 20px 20px;font-size:15px;color:var(--text-2);display:none}
.faq__item.is-open .faq__a{display:block}

/* cta band */
.cta-band{background:var(--paper-2);border-top:1px solid var(--line)}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding-block:clamp(40px,5vw,64px);flex-wrap:wrap}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:8px}
.cta-band p{font-size:15px;color:var(--text-2);max-width:560px}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap}

/* footer */
.site-footer{background:var(--ink-2);color:rgba(255,255,255,.68);padding-top:56px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-brand .brand__mark{box-shadow:none}
.foot-brand__main{color:#fff;font-size:16px;font-weight:700}
.foot-brand__sub{font-size:11px;letter-spacing:2px;color:rgba(255,255,255,.56);display:block}
.site-footer p{font-size:14px;line-height:1.9}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:14px}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a{color:rgba(255,255,255,.68);font-size:14px}
.foot-col a:hover{color:#fff}
.foot-bar{border-top:1px solid rgba(255,255,255,.1);padding:18px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5)}

/* responsive */
@media (max-width:1280px){
  .container{padding:0 20px}
}
@media (max-width:1024px){
  .hero__layout{grid-template-columns:1fr;gap:36px}
  .hero__media{aspect-ratio:16/9}
  .trust{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tiers{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .contact{grid-template-columns:1fr;gap:28px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .cmp__head{position:static}
}
@media (max-width:768px){
  body{font-size:15px}
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .nav-bar{height:60px}
  .brand__mark{width:36px;height:36px}
  .hero{padding-top:104px;min-height:auto}
  .hero__stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cmp__table,.cmp__foot{display:none}
  .cmp{border:0;background:transparent;box-shadow:none;overflow:visible}
  .cmp-cards{display:grid;gap:16px}
  .plan-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sd1)}
  .plan-card.is-rec{border:2px solid var(--red)}
  .plan-card h3{font-size:19px;margin-bottom:6px}
  .plan-card .price{font-size:24px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:12px}
  .plan-card ul{display:flex;flex-direction:column;gap:8px;font-size:14px;color:var(--text-2);margin-bottom:18px}
  .plan-card ul li{display:flex;gap:8px}
  .plan-card ul li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--red);margin-top:9px;flex-shrink:0}
  .flash .container{flex-direction:column;align-items:flex-start}
  .form-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
}
@media (max-width:560px){
  .container{padding:0 16px}
  .tiers{grid-template-columns:1fr;position:relative;padding-left:24px}
  .tiers::before{content:"";position:absolute;left:7px;top:10px;bottom:10px;width:2px;background:var(--line)}
  .tier{min-height:auto;position:relative}
  .tier::before{content:"";position:absolute;left:-24px;top:28px;width:12px;height:12px;border-radius:50%;background:var(--red);border:3px solid var(--paper)}
  .news-grid{grid-template-columns:1fr}
  .hero__stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flash__unit{min-width:56px}
  .flash__unit b{font-size:24px}
  .sec-head{margin-bottom:24px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .news-card:hover,.trust__item:hover,.tier:hover{transform:none}
  .news-card:hover .news-card__cover img{transform:none}
}

/* roulang page: article */
:root{
  --red:#DE3A22;
  --red-d:#C9321F;
  --red-l:#FBE6E1;
  --jade:#2F7E6F;
  --jade-d:#1F5F55;
  --jade-l:#E2F0EC;
  --gold:#D99A2B;
  --gold-l:#FBF0DA;
  --ink:#17120F;
  --ink-2:#0F0C0A;
  --paper:#FAF7F2;
  --paper-2:#F2ECE3;
  --line:#E4DACD;
  --tx:#1B1613;
  --tx2:#4A423B;
  --tx3:#7A7069;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --r-pill:999px;
  --sd1:0 1px 2px rgba(20,14,10,.06),0 6px 18px rgba(20,14,10,.06);
  --sd2:0 18px 48px rgba(20,14,10,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--tx);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;line-height:1.25;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--red);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(250,247,242,.94);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--sd1)}
.nav-bar{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:var(--ink);display:flex;align-items:center;justify-content:center;
}
.brand__mark svg{width:22px;height:22px;stroke:var(--gold);fill:none}
.brand__text{display:flex;flex-direction:column;line-height:1.12}
.brand__main{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--tx)}
.brand__sub{font-size:11px;letter-spacing:2px;color:var(--tx3);font-weight:500}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-links a{
  position:relative;font-size:15px;font-weight:600;color:var(--tx2);
  padding:6px 0;transition:color .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;border-radius:2px;
  background:var(--jade);opacity:.28;transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-links a:hover{color:var(--tx)}
.nav-links a:hover::after{transform:scaleX(.56);opacity:1}
.nav-links a.is-active{color:var(--tx)}
.nav-links a.is-active::after{background:var(--red);opacity:1;transform:scaleX(.56)}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 20px;border-radius:var(--r-sm);
  background:var(--red);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 1px 2px rgba(201,50,31,.25);
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-cta:hover{background:var(--red-d);transform:translateY(-2px);box-shadow:var(--sd2)}
.nav-cta:active{transform:translateY(0)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-sm);align-items:center;justify-content:center}
.nav-toggle svg{width:24px;height:24px;stroke:var(--tx);fill:none}
.nav-drawer{
  position:fixed;inset:0 0 0 auto;width:82%;max-width:360px;z-index:90;
  background:var(--ink);color:#fff;padding:24px 22px 96px;
  transform:translateX(100%);transition:transform .28s var(--ease);
  display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.nav-drawer a{
  display:flex;align-items:center;height:56px;font-size:18px;font-weight:600;
  border-bottom:1px solid rgba(255,255,255,.08);color:#F3EDE6;
}
.nav-drawer a:hover{color:var(--gold)}
.nav-drawer .drawer-cta{
  margin-top:20px;height:50px;border-radius:var(--r-sm);background:var(--red);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;
  border-bottom:0;
}
.nav-mask{
  position:fixed;inset:0;background:rgba(15,12,10,.5);z-index:85;
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.nav-mask.is-open{opacity:1;visibility:visible}

/* ---------- breadcrumb ---------- */
.crumb{padding-top:28px;font-size:14px;color:var(--tx3)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb a{color:var(--tx3)}
.crumb a:hover{color:var(--jade)}
.crumb .sep{color:#C3B6A6}
.crumb .now{color:var(--tx);font-weight:600}

/* ---------- article head ---------- */
.article-head{padding:18px 0 0}
.article-head__inner{max-width:820px;margin:0 auto}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.badge--jade{background:var(--jade-l);color:var(--jade-d)}
.badge--red{background:var(--red);color:#fff}
.badge--gold{background:var(--gold-l);color:#8A5E10}
.article-title{
  font-size:clamp(28px,3.6vw,42px);line-height:1.24;margin:16px 0 0;color:var(--tx);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:18px;font-size:14px;color:var(--tx3);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--red);display:inline-block}
.article-cover{
  max-width:960px;margin:28px auto 0;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sd1);background:var(--paper-2);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-lead{
  max-width:820px;margin:24px auto 0;font-size:17px;line-height:1.9;color:var(--tx2);
  padding-left:16px;border-left:4px solid var(--red);
}

/* ---------- article layout ---------- */
.article-section{padding:44px 0 clamp(56px,7vw,88px)}
.article-wrap{
  display:grid;gap:48px;grid-template-columns:minmax(0,1fr);
  max-width:780px;margin:0 auto;
}
.article-body{
  font-size:16px;line-height:1.9;color:var(--tx2);
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1em}
.article-body h2{
  font-size:clamp(21px,2.4vw,26px);color:var(--tx);
  margin:38px 0 14px;padding-left:14px;border-left:4px solid var(--red);
}
.article-body h3{font-size:19px;color:var(--tx);margin:28px 0 10px}
.article-body h4{font-size:17px;color:var(--tx);margin:22px 0 8px}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:8px}
.article-body blockquote{
  margin:22px 0;padding:16px 22px;border-left:3px solid var(--jade);
  background:var(--jade-l);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--jade-d);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:20px 0}
.article-body figure{margin:22px 0}
.article-body figcaption{font-size:13px;color:var(--tx3);text-align:center;margin-top:10px}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;margin:22px 0;
  display:block;overflow-x:auto;white-space:nowrap;
}
.article-body th{background:var(--paper-2);text-align:left;font-weight:600;color:var(--tx)}
.article-body th,.article-body td{padding:11px 14px;border:1px solid var(--line)}
.article-body a{color:var(--jade-d);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--red-d)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

.article-side{display:none}
.toc-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--sd1);
}
.toc-card h4{font-size:14px;letter-spacing:.04em;color:var(--tx3);margin-bottom:12px}
.toc-card ol{display:flex;flex-direction:column;gap:10px;counter-reset:toc}
.toc-card li{counter-increment:toc;font-size:14px;line-height:1.6}
.toc-card a{color:var(--tx2);display:flex;gap:8px}
.toc-card a::before{content:counter(toc);color:var(--gold);font-weight:700;font-variant-numeric:tabular-nums}
.toc-card a:hover{color:var(--jade-d)}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:36px 0 0;padding-top:24px;border-top:1px solid var(--line)}
.tag-row a{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--jade-l);color:var(--jade-d);font-size:13px;font-weight:600;
}
.tag-row a:hover{background:var(--jade);color:#fff}
.back-link{
  display:inline-flex;align-items:center;gap:8px;margin-top:24px;
  font-size:15px;font-weight:600;color:var(--jade-d);
  border-bottom:2px solid var(--jade);padding-bottom:2px;
}
.back-link:hover{color:var(--red-d);border-bottom-color:var(--red)}

/* ---------- cards ---------- */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sd1);display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sd2)}
.card__cover{overflow:hidden;background:var(--paper-2)}
.card__cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s var(--ease)}
.card:hover .card__cover img{transform:scale(1.04)}
.card__body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card__title{
  font-size:17px;line-height:1.5;color:var(--tx);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card__desc{
  font-size:14px;color:var(--tx3);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card__meta{
  margin-top:auto;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--tx3);
}
.card__meta .dot{width:4px;height:4px;border-radius:50%;background:var(--red)}

.related{padding:clamp(48px,6vw,80px) 0;background:var(--paper-2);border-top:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.sec-head h2{
  font-size:clamp(22px,2.6vw,30px);padding-left:14px;border-left:4px solid var(--red);
}
.sec-head p{font-size:14px;color:var(--tx3);margin-top:6px}
.link-more{
  font-size:15px;font-weight:600;color:var(--jade-d);
  border-bottom:2px solid var(--jade);padding-bottom:2px;flex:0 0 auto;
}
.link-more:hover{color:var(--red-d);border-bottom-color:var(--red)}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}

/* ---------- cta ---------- */
.cta-band{background:var(--ink);color:#fff;padding:clamp(48px,6vw,76px) 0;position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;left:-10%;right:-10%;top:-160px;height:320px;
  border-radius:50%;border:1px solid rgba(222,58,34,.35);
}
.cta-grid{
  position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;
}
.cta-band h2{font-size:clamp(22px,2.8vw,32px);color:#fff}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.72);font-size:15px;max-width:56ch}
.cta-points{display:flex;flex-wrap:wrap;gap:14px 26px;margin-top:22px}
.cta-points span{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.86)}
.cta-points svg{width:18px;height:18px;stroke:var(--gold);fill:none;stroke-width:1.5}
.cta-actions{display:flex;flex-direction:column;gap:14px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn--primary{background:var(--red);color:#fff}
.btn--primary:hover{background:var(--red-d);transform:translateY(-2px);box-shadow:var(--sd2)}
.btn--primary:active{transform:translateY(0);box-shadow:none}
.btn--ghost{border:2px solid rgba(255,255,255,.6);color:#fff}
.btn--ghost:hover{background:#fff;color:var(--ink);border-color:#fff;transform:translateY(-2px)}
.btn--dark{background:var(--ink);color:#fff}
.btn--dark:hover{background:var(--ink-2);transform:translateY(-2px);box-shadow:var(--sd2)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.cta-mini{font-size:13px;color:rgba(255,255,255,.6);text-align:center}

/* ---------- empty ---------- */
.empty{
  max-width:640px;margin:0 auto;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sd1);padding:48px 32px;text-align:center;
}
.empty svg{width:48px;height:48px;stroke:var(--tx3);fill:none;stroke-width:1.5;margin:0 auto 16px}
.empty p{font-size:14px;color:var(--tx3)}
.empty .btn{margin-top:20px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-2);color:#CFC6BC;padding:clamp(48px,6vw,72px) 0 0}
.foot-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:36px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-brand .brand__mark{background:#1F1915}
.foot-brand__main{display:block;font-size:17px;font-weight:700;color:#fff;letter-spacing:.02em}
.foot-brand__sub{display:block;font-size:11px;letter-spacing:2px;color:#8E8479}
.site-footer p{font-size:14px;line-height:1.85;color:#9C938A;max-width:36ch}
.foot-col h4{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a{font-size:14px;color:#A79E95}
.foot-col a:hover{color:var(--gold)}
.foot-bar{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;font-size:13px;color:#7E756C;
}

/* ---------- responsive ---------- */
@media (min-width:1280px){
  .article-wrap{grid-template-columns:minmax(0,780px) 260px;max-width:1100px}
  .article-side{display:block}
  .toc-card{position:sticky;top:96px}
}
@media (max-width:1024px){
  .nav-links{gap:20px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .nav-bar{height:60px;gap:12px}
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .brand__mark{width:36px;height:36px;flex:0 0 36px}
  .article-cover img{aspect-ratio:4/3}
  .grid-3{grid-template-columns:1fr}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
}
@media (max-width:560px){
  body{font-size:15px}
  .article-meta{font-size:13px}
  .foot-grid{grid-template-columns:1fr}
  .cta-actions .btn{width:100%}
  .article-head__inner,.article-cover,.article-lead{margin-left:0;margin-right:0}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important}
  .card:hover{transform:none}
  .card:hover .card__cover img{transform:none}
  .btn:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --brand:#DE3A22;
  --brand-dark:#C9321F;
  --brand-soft:#FBE6E1;
  --jade:#2F7E6F;
  --jade-dark:#1F5F55;
  --jade-soft:#E2F0EC;
  --gold:#D99A2B;
  --gold-soft:#FBF0DA;
  --gold-text:#8A5E12;
  --ink:#17120F;
  --ink-deep:#0F0C0A;
  --bg:#FAF7F2;
  --bg-2:#F2ECE3;
  --line:#E4DACD;
  --text:#1B1613;
  --text-2:#4A423B;
  --text-3:#7A7069;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --sd1:0 1px 2px rgba(20,14,10,.06),0 6px 18px rgba(20,14,10,.06);
  --sd2:0 18px 48px rgba(20,14,10,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
  --tr:200ms cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none;transition:color var(--tr),border-color var(--tr),background var(--tr)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:clamp(56px,7vw,104px) 0}
.section--alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--ink{background:var(--ink);color:#fff;position:relative;overflow:hidden}
.section--ink::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:80px 80px;pointer-events:none;
}
.section--ink > .container{position:relative;z-index:1}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  transition:transform var(--tr),background var(--tr),color var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:var(--sd1)}
.btn--primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:var(--sd2)}
.btn--primary:active{transform:none;box-shadow:var(--sd1)}
.btn--ghost{border:2px solid var(--ink);color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn--ghost-light{border:2px solid rgba(255,255,255,.42);color:#fff}
.btn--ghost-light:hover{background:#fff;color:var(--ink);transform:translateY(-2px)}
.btn--sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.04em;white-space:nowrap;
}
.badge--jade{background:var(--jade-soft);color:var(--jade-dark)}
.badge--brand{background:var(--brand);color:#fff}
.badge--gold{background:var(--gold-soft);color:var(--gold-text)}
.badge--live{background:var(--brand);color:#fff}
.badge--live::before{content:"";width:6px;height:6px;border-radius:50%;background:#fff;margin-right:6px;animation:dotPulse 2s infinite}
@keyframes dotPulse{0%,100%{opacity:1}50%{opacity:.32}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;border-bottom:1px solid transparent;
  transition:background var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.nav-bar{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;margin-right:auto;flex:none}
.brand__mark{
  width:40px;height:40px;border-radius:var(--r-sm);background:var(--brand);
  display:grid;place-items:center;flex:none;box-shadow:var(--sd1);
}
.brand__mark svg{width:22px;height:22px;stroke:#fff}
.brand__text{display:flex;flex-direction:column;line-height:1.14}
.brand__main{font-size:17px;font-weight:700;color:#fff;letter-spacing:-.01em}
.brand__sub{font-size:11px;letter-spacing:2px;color:rgba(255,255,255,.72)}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{position:relative;font-size:15px;font-weight:600;color:rgba(255,255,255,.86);padding:6px 0}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:3px;border-radius:2px;
  background:var(--jade-soft);transition:width var(--tr),background var(--tr);
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{width:56%}
.nav-links a.is-active{color:#fff}
.nav-links a.is-active::after{width:56%;background:var(--brand)}
.nav-cta{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;
  border-radius:10px;background:var(--brand);color:#fff;font-size:14px;font-weight:600;
  box-shadow:var(--sd1);flex:none;
  transition:transform var(--tr),background var(--tr),box-shadow var(--tr);
}
.nav-cta:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:var(--sd2)}
.nav-cta:active{transform:none}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;flex:none;
  border:1px solid rgba(255,255,255,.34);align-items:center;justify-content:center;
  transition:border-color var(--tr),background var(--tr);
}
.nav-toggle svg{width:22px;height:22px;stroke:#fff;transition:stroke var(--tr)}
.site-header.is-scrolled{background:rgba(250,247,242,.94);border-bottom-color:var(--line);box-shadow:var(--sd1)}
.site-header.is-scrolled .brand__main{color:var(--ink)}
.site-header.is-scrolled .brand__sub{color:var(--text-3)}
.site-header.is-scrolled .nav-links a{color:var(--text-2)}
.site-header.is-scrolled .nav-links a:hover,.site-header.is-scrolled .nav-links a.is-active{color:var(--ink)}
.site-header.is-scrolled .nav-toggle{border-color:var(--line)}
.site-header.is-scrolled .nav-toggle svg{stroke:var(--ink)}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;margin-top:-72px;
  padding:132px 0 76px;
  background:var(--ink-deep) url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  overflow:hidden;isolation:isolate;
}
.page-head::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(15,12,10,.88),rgba(15,12,10,.74));
}
.page-head::after{
  content:"";position:absolute;right:-140px;bottom:-300px;width:660px;height:660px;
  border:1px solid rgba(222,58,34,.25);border-radius:50%;z-index:-1;
}
.page-head h1{color:#fff;font-size:clamp(30px,4.6vw,54px);line-height:1.14;margin:18px 0 16px;max-width:820px}
.page-head__lead{max-width:660px;color:rgba(255,255,255,.8);font-size:17px;line-height:1.8}
.page-head__meta{display:flex;flex-wrap:wrap;gap:10px 28px;margin-top:30px;font-size:14px;color:rgba(255,255,255,.6)}
.page-head__meta span{display:inline-flex;align-items:center;gap:8px}
.page-head__meta span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--gold)}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.62)}
.breadcrumb a:hover{color:var(--brand-soft)}
.breadcrumb .sep{color:rgba(255,255,255,.32)}
.breadcrumb .cur{color:#fff;font-weight:700}

/* ---------- 锚点条 ---------- */
.anchor-bar{
  position:sticky;top:72px;z-index:50;
  background:rgba(250,247,242,.97);border-bottom:1px solid var(--line);
}
.anchor-bar__inner{display:flex;gap:8px;overflow-x:auto;padding:10px 24px;scrollbar-width:none}
.anchor-bar__inner::-webkit-scrollbar{display:none}
.anchor-bar a{
  flex:none;padding:8px 14px;border-radius:999px;font-size:14px;font-weight:600;
  color:var(--text-2);background:var(--bg-2);
}
.anchor-bar a:hover{background:var(--jade-soft);color:var(--jade-dark)}
.anchor-bar a:active{background:var(--brand-soft);color:var(--brand-dark)}

/* ---------- 板块标题 ---------- */
.section-head{max-width:740px;margin-bottom:clamp(32px,4vw,52px)}
.section-head h2{
  position:relative;padding-left:16px;
  font-size:clamp(23px,3vw,34px);line-height:1.25;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.24em;width:4px;height:28px;
  border-radius:2px;background:var(--brand);
}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px}
.section--ink .section-head h2{color:#fff}
.section--ink .section-head p{color:rgba(255,255,255,.72)}

/* ---------- 图文交错 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,56px);align-items:center}
.split + .split{margin-top:clamp(48px,6vw,80px)}
.split--reverse .split__media{order:2}
.split__media{
  margin:0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sd1);
  aspect-ratio:16/11;background:var(--bg-2);
}
.split__media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.split:hover .split__media img{transform:scale(1.03)}
.split__body h3{font-size:22px;line-height:1.35;margin-bottom:14px}
.split__body p{color:var(--text-2);font-size:16px}
.split__tag{margin-bottom:14px}
.feature-list{margin-top:20px;display:grid;gap:10px}
.feature-list li{position:relative;padding-left:28px;color:var(--text-2);font-size:15px;line-height:1.7}
.feature-list li::before{
  content:"";position:absolute;left:2px;top:.62em;width:14px;height:8px;
  border-left:2px solid var(--jade);border-bottom:2px solid var(--jade);
  transform:rotate(-45deg);
}
.feature-list--light li{color:rgba(255,255,255,.78)}
.feature-list--light li::before{border-color:var(--gold)}

/* ---------- 数据带 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
  margin-top:clamp(40px,5vw,64px);padding:clamp(20px,3vw,32px);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sd1);
}
.stat{text-align:center;padding:8px 12px}
.stat + .stat{border-left:1px solid var(--line)}
.stat__num{
  font-size:clamp(26px,3vw,32px);font-weight:700;color:var(--gold);
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;line-height:1.2;
}
.stat__num small{font-size:15px;font-weight:600;margin-left:4px}
.stat__label{font-size:14px;color:var(--text-3);margin-top:6px}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-md);background:#fff;
  margin-bottom:12px;box-shadow:var(--sd1);overflow:hidden;
  transition:border-color var(--tr),box-shadow var(--tr);
}
.faq-item:hover{border-color:#D6C8B6}
.faq-item.is-open{border-color:var(--brand);box-shadow:0 0 0 3px rgba(222,58,34,.08)}
.faq-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
  transition:color var(--tr);
}
.faq-btn:hover{color:var(--brand)}
.faq-btn .ico{position:relative;flex:none;width:18px;height:18px}
.faq-btn .ico::before,.faq-btn .ico::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform var(--tr),opacity var(--tr);
}
.faq-btn .ico::before{left:0;top:8px;width:18px;height:2px}
.faq-btn .ico::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-btn .ico::after{transform:rotate(90deg);opacity:0}
.faq-panel{display:none;padding:0 20px 20px;color:var(--text-2);font-size:15px;line-height:1.8}
.faq-item.is-open .faq-panel{display:block}

/* ---------- 相关分类 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sd1);
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sd2);border-color:#D6C8B6}
.rel-card__media{aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.rel-card__media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.rel-card:hover .rel-card__media img{transform:scale(1.04)}
.rel-card__body{display:flex;flex-direction:column;gap:10px;padding:20px;flex:1}
.rel-card__body h3{font-size:18px}
.rel-card__body p{font-size:14px;color:var(--text-3);line-height:1.7;flex:1}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--jade);
  border-bottom:2px solid transparent;padding-bottom:2px;width:fit-content;
}
.link-more:hover{color:var(--jade-dark);border-bottom-color:var(--jade-dark)}
.link-more svg{width:14px;height:14px;stroke:currentColor}

/* ---------- 咨询区 ---------- */
.cta-grid{display:grid;grid-template-columns:5fr 7fr;gap:clamp(32px,5vw,64px);align-items:start}
.cta-left h2{position:relative;padding-left:16px;font-size:clamp(23px,3vw,34px);color:#fff}
.cta-left h2::before{
  content:"";position:absolute;left:0;top:.24em;width:4px;height:28px;border-radius:2px;background:var(--brand);
}
.cta-left > p{margin-top:14px;color:rgba(255,255,255,.74);font-size:16px}
.contact-line{
  margin-top:28px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:grid;gap:8px;font-size:14px;color:rgba(255,255,255,.66);
}
.contact-line strong{color:#fff;font-weight:600}
.form-card{
  background:#fff;border-radius:var(--r-lg);padding:clamp(20px,3vw,30px);
  box-shadow:var(--sd2);color:var(--text);
}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card .form-hint{font-size:13px;color:var(--text-3);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:6px;color:var(--text-2)}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;border:1px solid var(--line);
  border-radius:var(--r-sm);background:var(--bg);
  transition:border-color var(--tr),box-shadow var(--tr),background var(--tr);
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#A79C90}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(222,58,34,.16);
}
.field.has-error input,.field.has-error select{border-color:var(--brand-dark);background:#FFF7F5}
.field .err{display:none;font-size:12px;color:var(--brand-dark);margin-top:6px;line-height:1.5}
.field.has-error .err{display:block}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2);line-height:1.6;margin-bottom:18px}
.check input{width:16px;height:16px;flex:none;margin-top:3px;accent-color:var(--brand)}
.check.has-error{color:var(--brand-dark)}
.form-success{
  display:none;padding:14px 16px;border-radius:var(--r-sm);
  background:var(--jade-soft);color:var(--jade-dark);font-size:14px;font-weight:600;margin-bottom:16px;
}
.form-success.is-visible{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.68);padding:clamp(48px,6vw,72px) 0 0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-brand .brand__mark{background:var(--brand)}
.foot-brand__main{display:block;font-size:17px;font-weight:700;color:#fff;line-height:1.2}
.foot-brand__sub{display:block;font-size:11px;letter-spacing:2px;color:rgba(255,255,255,.55)}
.site-footer p{font-size:14px;line-height:1.8;max-width:340px}
.foot-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px}
.foot-col li{margin-bottom:10px;font-size:14px}
.foot-col a{color:rgba(255,255,255,.68)}
.foot-col a:hover{color:var(--brand-soft)}
.foot-bar{
  margin-top:clamp(32px,4vw,48px);border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .cta-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .split{gap:32px}
}
@media (max-width:900px){
  .nav-bar{height:60px}
  .nav-links{
    position:fixed;top:0;right:0;width:82%;max-width:360px;height:100vh;
    background:var(--ink-deep);flex-direction:column;align-items:stretch;gap:0;
    padding:96px 28px 32px;transform:translateX(100%);
    transition:transform 260ms var(--ease);z-index:70;box-shadow:var(--sd2);
    overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-links a{
    color:rgba(255,255,255,.88)!important;font-size:18px;line-height:56px;
    border-bottom:1px solid rgba(255,255,255,.08);padding:0;
  }
  .nav-links a::after{display:none}
  .nav-links a.is-active{color:#fff!important}
  .nav-links a.is-active::before{
    content:"";display:inline-block;width:4px;height:18px;background:var(--brand);
    margin-right:10px;border-radius:2px;vertical-align:-3px;
  }
  .nav-toggle{display:inline-flex}
  .page-head{margin-top:-60px;padding:112px 0 60px}
  .anchor-bar{top:60px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .anchor-bar__inner{padding:10px 16px}
  .split{grid-template-columns:1fr;gap:24px}
  .split--reverse .split__media{order:0}
  .split__media{aspect-ratio:16/10}
  .split__body h3{font-size:20px}
  .stat-strip{grid-template-columns:1fr}
  .stat + .stat{border-left:0;border-top:1px solid var(--line);padding-top:16px;margin-top:4px}
  .rel-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .page-head__meta{gap:8px 20px;font-size:13px}
}
@media (max-width:560px){
  body{font-size:15px}
  .nav-cta{height:36px;padding:0 14px;font-size:13px}
  .brand__main{font-size:16px}
  .form-card{padding:18px}
  .btn{height:46px;padding:0 18px}
  .foot-bar{flex-direction:column;gap:6px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .btn:hover,.rel-card:hover,.brand__mark,.split:hover .split__media img,.rel-card:hover .rel-card__media img{transform:none!important}
}

/* roulang page: category2 */
:root{
  --red:#DE3A22; --red-dark:#C9321F; --red-soft:#FBE6E1;
  --green:#2F7E6F; --green-dark:#1F5F55; --green-soft:#E2F0EC;
  --gold:#D99A2B; --gold-soft:#FAF0DC;
  --ink:#17120F; --ink-2:#0F0C0A;
  --bg:#FAF7F2; --bg-2:#F2ECE3; --line:#E4DACD;
  --text:#1B1613; --text-2:#4A423B; --text-3:#7A7069;
  --r-lg:18px; --r-md:14px; --r-sm:12px; --r-xs:10px;
  --sd1:0 1px 2px rgba(20,14,10,.06), 0 6px 18px rgba(20,14,10,.06);
  --sd2:0 18px 48px rgba(20,14,10,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font);font-size:16px;line-height:1.8;
  color:var(--text);background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
h1{font-size:clamp(30px,4.6vw,50px);line-height:1.14}
h2{font-size:clamp(23px,3vw,32px)}
h3{font-size:20px}
h4{font-size:17px}
:focus-visible{outline:2px solid var(--red);outline-offset:3px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.narrow{max-width:860px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,247,242,.9);
  border-bottom:1px solid transparent;
  transition:background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(250,247,242,.96);
  border-bottom-color:var(--line);
  box-shadow:var(--sd1);
}
.nav-bar{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:var(--r-sm);
  background:var(--ink);display:grid;place-items:center;
}
.brand__mark svg{width:22px;height:22px;stroke:var(--red);fill:none}
.brand__text{display:flex;flex-direction:column;line-height:1.12}
.brand__main{font-size:17px;font-weight:700;letter-spacing:-.01em}
.brand__sub{font-size:11px;letter-spacing:2px;color:var(--text-3)}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-links a{
  position:relative;font-size:15px;font-weight:600;color:var(--text-2);
  padding:6px 0;transition:color .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:22%;bottom:0;width:56%;height:3px;border-radius:2px;
  background:var(--green);opacity:.35;transform:scaleX(0);transform-origin:center;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--ink)}
.nav-links a.is-active::after{background:var(--red);opacity:1;transform:scaleX(1)}
.nav-cta{
  flex:0 0 auto;height:44px;display:inline-flex;align-items:center;justify-content:center;
  padding:0 20px;border-radius:var(--r-sm);background:var(--red);color:#fff;
  font-size:15px;font-weight:600;transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-cta:hover{background:var(--red-dark);transform:translateY(-2px);box-shadow:var(--sd2)}
.nav-cta:active{transform:translateY(0)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:var(--r-sm);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle svg{width:22px;height:22px;stroke:var(--ink);fill:none}
.drawer{
  position:fixed;inset:0 0 0 auto;width:82%;max-width:340px;background:var(--ink);color:#fff;
  transform:translateX(100%);transition:transform .28s var(--ease);z-index:80;
  display:none;flex-direction:column;padding:24px;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer__close{width:40px;height:40px;border:1px solid rgba(255,255,255,.25);background:transparent;border-radius:var(--r-sm);cursor:pointer}
.drawer__close svg{width:20px;height:20px;stroke:#fff;fill:none}
.drawer nav{display:flex;flex-direction:column}
.drawer nav a{
  font-size:18px;line-height:56px;border-bottom:1px solid rgba(255,255,255,.1);color:rgba(255,255,255,.86);
}
.drawer nav a.is-active{color:#fff;font-weight:700}
.drawer__cta{
  margin-top:auto;height:52px;border-radius:var(--r-sm);background:var(--red);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:600;
}
.scrim{
  position:fixed;inset:0;background:rgba(15,12,10,.5);opacity:0;pointer-events:none;
  transition:opacity .28s var(--ease);z-index:70;
}
.scrim.is-open{opacity:1;pointer-events:auto}

/* ---------- breadcrumb ---------- */
.crumb{padding:24px 0 0;font-size:14px;color:var(--text-3)}
.crumb ol{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.crumb a{color:var(--text-3);transition:color .2s var(--ease)}
.crumb a:hover{color:var(--green)}
.crumb li+li::before{content:"/";margin-right:6px;color:var(--line)}
.crumb .current{color:var(--ink);font-weight:600}

/* ---------- page head ---------- */
.page-head{padding:24px 0 clamp(36px,5vw,56px);position:relative;overflow:hidden}
.page-head::before{
  content:"";position:absolute;right:-160px;top:-220px;width:520px;height:520px;
  border:1px solid rgba(222,58,34,.25);border-radius:50%;pointer-events:none;
}
.page-head .lead{max-width:760px;margin-top:16px;color:var(--text-2);font-size:16px}
.page-head .chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}

.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;font-weight:600;
}
.badge--green{background:var(--green-soft);color:var(--green-dark)}
.badge--gold{background:var(--gold-soft);color:#8A5F13}
.badge--red{background:var(--red);color:#fff}

/* ---------- anchor nav ---------- */
.anchor-bar{
  position:sticky;top:72px;z-index:40;background:var(--bg-2);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.anchor-bar .inner{
  display:flex;gap:8px;overflow-x:auto;padding:10px 24px;max-width:1200px;margin:0 auto;
  scrollbar-width:none;
}
.anchor-bar .inner::-webkit-scrollbar{display:none}
.anchor-bar a{
  flex:0 0 auto;font-size:14px;font-weight:600;color:var(--text-2);
  padding:8px 14px;border-radius:var(--r-xs);transition:background .2s var(--ease),color .2s var(--ease);
}
.anchor-bar a:hover{background:#fff;color:var(--ink)}
.anchor-bar a.is-on{background:var(--ink);color:#fff}

/* ---------- sections ---------- */
.section{padding-block:clamp(56px,7vw,88px)}
.section--alt{background:var(--bg-2);border-top:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head h2{display:flex;align-items:center;gap:12px}
.section-head h2::before{
  content:"";width:4px;height:28px;border-radius:2px;background:var(--red);flex:0 0 4px;
}
.section-head .note{font-size:14px;color:var(--text-3);max-width:420px}

/* ---------- filter row ---------- */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.filter-row span{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--text-2);
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.filter-row span:hover{border-color:var(--green);color:var(--green-dark)}
.filter-row span.on{background:var(--ink);border-color:var(--ink);color:#fff}

/* ---------- card wall ---------- */
.card-wall{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.wall-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sd1);overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.wall-card:hover{transform:translateY(-3px);box-shadow:var(--sd2);border-color:#D6C8B7}
.wall-card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2);border-radius:var(--r-lg) var(--r-lg) 0 0}
.wall-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.wall-card:hover .wall-card__media img{transform:scale(1.04)}
.wall-card__tag{
  position:absolute;left:12px;top:12px;height:24px;padding:0 10px;border-radius:999px;
  background:rgba(23,18,15,.82);color:#fff;font-size:12px;letter-spacing:.04em;
  display:inline-flex;align-items:center;
}
.wall-card__body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.wall-card__body h3{font-size:19px}
.wall-card__body p{font-size:14px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.wall-card__meta{
  margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}
.wall-card__meta b{color:var(--gold);font-weight:700}
.link-arrow{
  font-size:14px;font-weight:600;color:var(--green-dark);
  border-bottom:2px solid rgba(47,126,111,.45);padding-bottom:2px;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.link-arrow:hover{color:var(--green);border-color:var(--green)}

/* ---------- facts strip ---------- */
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.fact{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px;
  box-shadow:var(--sd1);
}
.fact b{display:block;font-size:32px;line-height:1.2;color:var(--gold);font-weight:700}
.fact span{display:block;margin-top:6px;font-size:14px;color:var(--text-2)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:s}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px 20px;
  position:relative;overflow:hidden;
}
.step::after{
  content:"";position:absolute;right:0;top:0;width:22px;height:22px;background:var(--red-soft);
  clip-path:polygon(100% 0,100% 100%,0 0);
}
.step em{
  display:block;font-style:normal;font-size:13px;letter-spacing:.08em;color:var(--green-dark);font-weight:700;
}
.step h3{font-size:18px;margin-top:10px}
.step p{font-size:14px;color:var(--text-2);margin-top:8px}

/* ---------- related ---------- */
.related{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.rel-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 20px;box-shadow:var(--sd1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sd2);border-color:var(--green)}
.rel-card h3{font-size:17px}
.rel-card p{font-size:13px;color:var(--text-3);margin-top:8px;line-height:1.7}

/* ---------- cta ---------- */
.cta-band{background:var(--ink);color:#fff;position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:64px 64px;pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;right:-200px;bottom:-320px;width:600px;height:600px;
  border:1px solid rgba(222,58,34,.35);border-radius:50%;pointer-events:none;
}
.cta-grid{position:relative;display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.cta-copy h2{color:#fff}
.cta-copy p{color:rgba(255,255,255,.76);margin-top:14px;font-size:15px}
.cta-list{margin-top:22px;display:grid;gap:10px}
.cta-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.86)}
.cta-list svg{width:18px;height:18px;flex:0 0 18px;margin-top:5px;stroke:var(--gold);fill:none}
.cta-contact{margin-top:26px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);font-size:14px;color:rgba(255,255,255,.7)}
.cta-contact strong{display:block;color:#fff;font-size:18px;letter-spacing:.02em;margin-top:4px}

.form-card{
  background:#fff;color:var(--text);border-radius:var(--r-lg);padding:28px;
  box-shadow:var(--sd2);
}
.form-card h3{font-size:19px}
.form-card .hint{font-size:13px;color:var(--text-3);margin-top:6px}
.field{margin-top:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--text-2);margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-xs);
  background:var(--bg);transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
  font-size:15px;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--red);background:#fff;box-shadow:0 0 0 2px rgba(222,58,34,.22);
}
.field textarea{min-height:96px;resize:vertical}
.field .err{display:none;font-size:12px;color:var(--red-dark);margin-top:6px}
.field.is-invalid input,.field.is-invalid select{border-color:var(--red-dark)}
.field.is-invalid .err{display:block}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.check{display:flex;gap:10px;align-items:flex-start;margin-top:16px;font-size:13px;color:var(--text-2)}
.check input{width:18px;height:18px;flex:0 0 18px;margin-top:3px;accent-color:var(--red)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);border:2px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn--primary{background:var(--red);color:#fff}
.btn--primary:hover{background:var(--red-dark);transform:translateY(-2px);box-shadow:var(--sd2)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:#fff}
.btn--light{background:#fff;color:var(--ink)}
.btn--light:hover{background:var(--gold-soft);transform:translateY(-2px)}
.btn--block{width:100%;margin-top:20px}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.form-success{
  display:none;margin-top:18px;padding:14px 16px;border-radius:var(--r-sm);
  background:var(--green-soft);color:var(--green-dark);font-size:14px;font-weight:600;
}
.form-success.show{display:block}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-2);color:rgba(255,255,255,.72);padding:56px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-brand__main{display:block;font-size:17px;font-weight:700;color:#fff}
.foot-brand__sub{display:block;font-size:11px;letter-spacing:2px;color:rgba(255,255,255,.55)}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62)}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:14px}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:14px;color:rgba(255,255,255,.66);transition:color .2s var(--ease)}
.foot-col a:hover{color:var(--gold)}
.foot-bar{
  border-top:1px solid rgba(255,255,255,.12);padding:18px 0 24px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-links{gap:20px}
  .card-wall{grid-template-columns:repeat(2,1fr)}
  .related{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .drawer{display:flex}
  .nav-bar{height:60px}
  .anchor-bar{top:60px}
  .facts{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .foot-grid{grid-template-columns:1fr;gap:26px}
}
@media (max-width:560px){
  .container{padding:0 16px}
  body{font-size:15px}
  .card-wall{grid-template-columns:1fr}
  .related{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .two-col{grid-template-columns:1fr}
  .form-card{padding:20px}
  .page-head::before{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .wall-card:hover,.rel-card:hover,.btn:hover,.nav-cta:hover{transform:none}
  .wall-card:hover .wall-card__media img{transform:none}
}

/* roulang page: category3 */
:root{
  --red:#DE3A22;
  --red-deep:#C9321F;
  --red-soft:#FBE6E1;
  --green:#2F7E6F;
  --green-deep:#1F5F55;
  --green-soft:#E2F0EC;
  --gold:#D99A2B;
  --ink:#17120F;
  --ink-deep:#0F0C0A;
  --bg:#FAF7F2;
  --bg-2:#F2ECE3;
  --line:#E4DACD;
  --text:#1B1613;
  --text-2:#4A423B;
  --text-3:#7A7069;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --sd1:0 1px 2px rgba(20,14,10,.06),0 6px 18px rgba(20,14,10,.06);
  --sd2:0 18px 48px rgba(20,14,10,.14);
  --tr:200ms cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--tr)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--red);
  outline-offset:2px;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(250,247,242,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--tr),background var(--tr);
}
.site-header.is-scrolled{box-shadow:var(--sd1);background:rgba(250,247,242,.98)}
.nav-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.brand{display:flex;align-items:center;gap:10px}
.brand__mark{
  width:40px;height:40px;flex:0 0 40px;
  display:flex;align-items:center;justify-content:center;
  background:var(--ink);
  border-radius:12px;
}
.brand__mark svg{width:22px;height:22px;stroke:var(--gold);fill:none}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__main{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.brand__sub{font-size:11px;letter-spacing:2px;color:var(--text-3)}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:var(--text-2);
  padding:6px 2px;
}
.nav-links a::after{
  content:"";
  position:absolute;left:50%;bottom:-2px;
  width:0;height:3px;border-radius:2px;
  background:var(--green-soft);
  transform:translateX(-50%);
  transition:width var(--tr),background var(--tr);
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{width:56%}
.nav-links a.is-active{color:var(--ink)}
.nav-links a.is-active::after{width:56%;background:var(--red)}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 20px;
  background:var(--red);color:#fff;
  font-size:14px;font-weight:600;
  border-radius:12px;
  transition:background var(--tr),transform var(--tr),box-shadow var(--tr);
}
.nav-cta:hover{background:var(--red-deep);transform:translateY(-2px);box-shadow:var(--sd2)}
.nav-cta:active{transform:translateY(0)}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
}
.nav-toggle svg{width:22px;height:22px;stroke:var(--ink);fill:none}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  font-size:15px;font-weight:600;
  border-radius:12px;
  transition:background var(--tr),color var(--tr),transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.btn--primary{background:var(--red);color:#fff}
.btn--primary:hover{background:var(--red-deep);transform:translateY(-2px);box-shadow:var(--sd2)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;color:var(--ink);border:2px solid var(--ink)}
.btn--ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn--link{
  height:auto;padding:0;
  color:var(--green);font-weight:600;
  border-bottom:2px solid var(--green);
  border-radius:0;
}
.btn--link:hover{color:var(--green-deep);border-color:var(--green-deep)}
.btn--sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;
  font-size:12px;font-weight:600;
  border-radius:999px;
  letter-spacing:.04em;
}
.badge--green{background:var(--green-soft);color:var(--green-deep)}
.badge--red{background:var(--red);color:#fff}
.badge--gold{background:#FBF0DA;color:#8A5D10}
.badge--dot::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:#fff;animation:breathe 2s ease-in-out infinite;
}
@keyframes breathe{0%,100%{opacity:1}50%{opacity:.35}}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;
  padding:36px 0 44px;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-head::after{
  content:"";
  position:absolute;left:50%;bottom:-320px;
  width:1400px;height:600px;
  transform:translateX(-50%);
  border:1px solid rgba(222,58,34,.25);
  border-radius:50%;
  pointer-events:none;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--text-3);
  margin-bottom:24px;
}
.breadcrumb a:hover{color:var(--green)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--ink);font-weight:700}
.page-head h1{
  font-size:clamp(30px,4.6vw,48px);
  line-height:1.14;
  max-width:820px;
  margin-bottom:16px;
}
.page-head .lead{
  max-width:720px;
  font-size:16px;
  color:var(--text-2);
  margin-bottom:24px;
}
.page-head .head-tags{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- 锚点导航条 ---------- */
.anchor-bar{
  position:sticky;
  top:72px;
  z-index:40;
  background:rgba(242,236,227,.96);
  border-bottom:1px solid var(--line);
}
.anchor-bar__inner{
  display:flex;align-items:center;gap:10px;
  overflow-x:auto;
  padding:12px 24px;
  scrollbar-width:none;
}
.anchor-bar__inner::-webkit-scrollbar{display:none}
.anchor-bar a{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  height:34px;padding:0 14px;
  font-size:14px;font-weight:600;
  color:var(--text-2);
  background:#fff;
  border:1px solid var(--line);
  border-radius:999px;
  transition:border-color var(--tr),color var(--tr),background var(--tr);
}
.anchor-bar a:hover{color:var(--green-deep);border-color:var(--green);background:var(--green-soft)}

/* ---------- 板块 ---------- */
.section{padding:clamp(56px,7vw,88px) 0}
.section--alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{
  position:relative;
  font-size:clamp(23px,3vw,32px);
  line-height:1.25;
  padding-left:16px;
  margin-bottom:12px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.22em;
  width:4px;height:28px;border-radius:2px;
  background:var(--red);
}
.section-head p{color:var(--text-2);margin:0}

/* ---------- 步骤条 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:12px;
  margin-bottom:48px;
}
.step{
  position:relative;
  padding:20px 18px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sd1);
}
.step::after{
  content:"";
  position:absolute;right:-12px;top:38px;
  width:12px;height:2px;
  background:var(--line);
}
.step:last-child::after{display:none}
.step__dot{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;margin-bottom:12px;
  border-radius:50%;
  background:var(--red-soft);color:var(--red-deep);
  font-size:15px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.step--done .step__dot{background:var(--green-soft);color:var(--green-deep)}
.step h3{font-size:17px;margin-bottom:6px}
.step p{margin:0;font-size:14px;color:var(--text-3);line-height:1.7}

/* ---------- 步骤卡 + 注意框 ---------- */
.proc-layout{
  display:grid;
  grid-template-columns:1.55fr 1fr;
  gap:32px;
  align-items:start;
}
.proc-list{display:grid;gap:16px}
.pcard{
  display:flex;gap:20px;
  padding:24px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sd1);
  transition:transform var(--tr),box-shadow var(--tr);
}
.pcard:hover{transform:translateY(-3px);box-shadow:var(--sd2)}
.pcard__num{
  flex:0 0 auto;
  font-size:28px;font-weight:700;line-height:1;
  color:var(--gold);
  font-variant-numeric:tabular-nums;
  padding-top:2px;
}
.pcard h3{font-size:20px;margin-bottom:8px}
.pcard p{margin:0 0 10px;font-size:15px;color:var(--text-2)}
.pcard ul{display:grid;gap:6px}
.pcard li{
  position:relative;
  padding-left:16px;
  font-size:14px;
  color:var(--text-2);
}
.pcard li::before{
  content:"";position:absolute;left:0;top:.7em;
  width:6px;height:6px;border-radius:50%;
  background:var(--green);
}
.note-box{
  padding:26px;
  background:var(--red-soft);
  border:1px solid #F2CFC7;
  border-radius:var(--r-lg);
}
.note-box h3{
  display:flex;align-items:center;gap:8px;
  font-size:18px;margin-bottom:14px;color:#8E2A18;
}
.note-box h3 svg{width:20px;height:20px;stroke:#8E2A18;fill:none}
.note-box ul{display:grid;gap:10px;margin-bottom:18px}
.note-box li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  color:#6E2A1A;
  line-height:1.75;
}
.note-box li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:5px;height:5px;border-radius:50%;
  background:var(--red);
}
.note-box .note-contact{
  padding-top:14px;
  border-top:1px solid #F2CFC7;
  font-size:14px;
  color:#6E2A1A;
}

/* ---------- 权益明细 ---------- */
.rights-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.right-card{
  padding:24px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sd1);
  clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,0 100%);
  transition:transform var(--tr),box-shadow var(--tr);
}
.right-card:hover{transform:translateY(-3px);box-shadow:var(--sd2)}
.right-card h3{font-size:18px;margin-bottom:10px}
.right-card p{margin:0;font-size:14px;color:var(--text-2);line-height:1.75}
.right-card__line{
  height:4px;width:28px;border-radius:2px;
  background:var(--green);
  margin-bottom:16px;
}

/* ---------- 数据带 ---------- */
.stat-band{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
  padding:28px;
  background:var(--ink);
  border-radius:var(--r-lg);
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:44px 44px;
}
.stat{text-align:center}
.stat strong{
  display:block;
  font-size:32px;line-height:1.1;
  color:var(--gold);
  font-variant-numeric:tabular-nums;
  margin-bottom:6px;
}
.stat span{font-size:14px;color:rgba(255,255,255,.72)}

/* ---------- 相关分类 ---------- */
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.rcard{
  display:flex;flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sd1);
  transition:transform var(--tr),box-shadow var(--tr);
}
.rcard:hover{transform:translateY(-3px);box-shadow:var(--sd2)}
.rcard__media{aspect-ratio:16/9;overflow:hidden}
.rcard__media img{width:100%;height:100%;object-fit:cover;transition:transform var(--tr)}
.rcard:hover .rcard__media img{transform:scale(1.04)}
.rcard__body{padding:20px 22px 22px}
.rcard__body h3{font-size:18px;margin:10px 0 8px}
.rcard__body p{font-size:14px;color:var(--text-2);margin:0 0 14px}
.rcard__more{font-size:14px;font-weight:600;color:var(--green)}
.rcard:hover .rcard__more{color:var(--green-deep)}

/* ---------- CTA + 表单 ---------- */
.cta-section{
  background:var(--ink);
  color:#fff;
  padding:clamp(56px,7vw,88px) 0;
}
.cta-grid{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:48px;
  align-items:start;
}
.cta-copy h2{color:#fff;font-size:clamp(23px,3vw,32px);line-height:1.25;margin-bottom:16px}
.cta-copy p{color:rgba(255,255,255,.72);font-size:15px}
.cta-points{display:grid;gap:12px;margin:24px 0}
.cta-points li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:rgba(255,255,255,.86);
}
.cta-points svg{width:20px;height:20px;flex:0 0 20px;margin-top:4px;stroke:var(--gold);fill:none}
.cta-contact{
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:14px;color:rgba(255,255,255,.66);
}
.form-card{
  background:#fff;
  color:var(--text);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--sd2);
}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card .form-hint{font-size:14px;color:var(--text-3);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:6px;color:var(--text-2)}
.field input,.field select,.field textarea{
  width:100%;
  padding:11px 14px;
  font-family:inherit;
  font-size:15px;
  color:var(--text);
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  transition:border-color var(--tr),box-shadow var(--tr),background var(--tr);
}
.field textarea{min-height:98px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  background:#fff;
  border-color:var(--red);
  box-shadow:0 0 0 3px rgba(222,58,34,.16);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--red-deep)}
.field .err{display:none;font-size:12px;color:var(--red-deep);margin-top:6px}
.field.has-error .err{display:block}
.check-row{display:flex;gap:10px;align-items:flex-start;margin-bottom:20px}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--red)}
.check-row label{font-size:13px;color:var(--text-3);line-height:1.7}
.form-success{
  display:none;
  padding:14px 16px;
  background:var(--green-soft);
  color:var(--green-deep);
  border-radius:var(--r-sm);
  font-size:14px;
  margin-bottom:16px;
}
.form-success.is-on{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.72);padding:64px 0 0}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-brand .brand__mark{background:rgba(255,255,255,.08)}
.foot-brand__main{display:block;font-size:17px;font-weight:700;color:#fff}
.foot-brand__sub{display:block;font-size:11px;letter-spacing:2px;color:rgba(255,255,255,.5)}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);margin:0}
.foot-col h4{font-size:15px;color:#fff;margin-bottom:16px}
.foot-col ul{display:grid;gap:10px}
.foot-col a{font-size:14px;color:rgba(255,255,255,.66)}
.foot-col a:hover{color:var(--gold)}
.foot-bar{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding:20px 0 28px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(255,255,255,.46);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-links{gap:20px}
  .proc-layout{grid-template-columns:1fr}
  .rights-grid{grid-template-columns:repeat(2,1fr)}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .nav-bar{height:60px}
  .nav-links{
    position:fixed;
    top:60px;right:0;
    width:82%;
    max-width:340px;
    height:calc(100% - 60px);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:16px 20px 32px;
    background:var(--ink);
    transform:translateX(102%);
    transition:transform var(--tr);
    overflow-y:auto;
    z-index:70;
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-links a{
    color:rgba(255,255,255,.86);
    font-size:18px;
    line-height:56px;
    padding:0;
    border-bottom:1px solid rgba(255,255,255,.1);
  }
  .nav-links a::after{display:none}
  .nav-links a.is-active{color:#fff}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .anchor-bar{top:60px}
  .steps{grid-template-columns:1fr;gap:10px}
  .step::after{display:none}
  .rights-grid{grid-template-columns:1fr}
  .stat-band{grid-template-columns:1fr;gap:22px}
  .related-grid{grid-template-columns:1fr}
  .page-head{padding:24px 0 32px}
  .pcard{flex-direction:column;gap:12px}
  .pcard__num{font-size:24px}
  .foot-grid{grid-template-columns:1fr}
  .form-card{padding:22px}
}
@media (max-width:520px){
  body{font-size:15px}
  .brand__main{font-size:16px}
  .step{padding:16px}
  .stat strong{font-size:26px}
  .foot-bar{flex-direction:column;gap:6px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .pcard:hover,.rcard:hover,.btn:hover,.nav-cta:hover{transform:none}
}

/* roulang page: category4 */
:root{
  --cinnabar:#DE3A22;
  --cinnabar-dark:#C9321F;
  --cinnabar-soft:#FBE6E1;
  --jade:#2F7E6F;
  --jade-dark:#1F5F55;
  --jade-soft:#E2F0EC;
  --gold:#D99A2B;
  --ink:#17120F;
  --ink-2:#0F0C0A;
  --paper:#FAF7F2;
  --paper-2:#F2ECE3;
  --line:#E4DACD;
  --text:#1B1613;
  --text-2:#4A423B;
  --text-3:#7A7069;
  --r-card:18px;
  --r-inner:12px;
  --r-btn:12px;
  --sd1:0 1px 2px rgba(20,14,10,.06),0 6px 18px rgba(20,14,10,.06);
  --sd2:0 18px 48px rgba(20,14,10,.14);
  --tr:200ms cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--jade-dark);text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--cinnabar)}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
h1{font-size:clamp(30px,4.6vw,50px);line-height:1.14}
h2{font-size:clamp(23px,3vw,34px);line-height:1.25}
h3{font-size:clamp(19px,2.1vw,22px);line-height:1.4}
h4{font-size:17px;line-height:1.5}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0 0 1em;padding-left:1.3em}
li{margin-bottom:8px}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:16px}
svg{display:block}
:focus-visible{outline:2px solid var(--cinnabar);outline-offset:3px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding-block:clamp(56px,7vw,104px)}
.section--alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--dark{background:var(--ink);color:#EFE7DE;border:none}
.section--dark h2,.section--dark h3{color:#FBF6F0}
.section--dark p{color:#C9BFB5}

.sec-head{max-width:760px;margin-bottom:clamp(28px,4vw,48px)}
.sec-head h2{display:flex;align-items:center;gap:12px}
.sec-head h2::before{content:"";flex:none;width:4px;height:28px;border-radius:2px;background:var(--cinnabar)}
.sec-head p{margin-top:12px;color:var(--text-2);font-size:15px}
.section--dark .sec-head p{color:#B9AEA3}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,247,242,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--tr),background var(--tr);
}
.site-header.is-scrolled{box-shadow:var(--sd1);background:rgba(250,247,242,.97)}
.nav-bar{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand__mark{
  width:40px;height:40px;flex:none;border-radius:12px;
  background:var(--ink);display:grid;place-items:center;
}
.brand__mark svg{width:22px;height:22px;stroke:#FAF7F2}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__main{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.brand__sub{font-size:11px;letter-spacing:2px;color:var(--text-3)}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-links a{
  position:relative;padding:6px 0;font-size:15px;font-weight:600;color:var(--text-2);
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:-2px;width:56%;height:3px;border-radius:2px;
  background:transparent;transition:background var(--tr);
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{background:rgba(47,126,111,.38)}
.nav-links a.is-active{color:var(--ink)}
.nav-links a.is-active::after{background:var(--cinnabar)}
.nav-cta{
  flex:none;display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  background:var(--cinnabar);color:#fff;font-size:15px;font-weight:600;
  transition:background var(--tr),transform var(--tr),box-shadow var(--tr);
}
.nav-cta:hover{background:var(--cinnabar-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sd2)}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;border:1px solid var(--line);
  border-radius:10px;background:#fff;place-items:center;
}
.nav-toggle svg{width:22px;height:22px;stroke:var(--ink)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);border:2px solid transparent;
  font-size:16px;font-weight:600;letter-spacing:.01em;
  transition:background var(--tr),color var(--tr),transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.btn--primary{background:var(--cinnabar);color:#fff}
.btn--primary:hover{background:var(--cinnabar-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sd2)}
.btn--primary:active{transform:none}
.btn--ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:#FAF7F2}
.btn--ghost:active{transform:none}
.btn--sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px}
.btn--link{
  height:auto;padding:0;border:none;background:transparent;color:var(--jade-dark);
  border-bottom:2px solid var(--jade);border-radius:0;font-size:15px;font-weight:600;
}
.btn--link:hover{color:var(--jade-dark);border-color:var(--jade-dark)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.04em;
}
.badge--jade{background:var(--jade-soft);color:var(--jade-dark)}
.badge--soft{background:var(--cinnabar-soft);color:var(--cinnabar-dark)}
.badge--gold{background:#FBF0DA;color:#8A5F12}
.badge__dot{width:6px;height:6px;border-radius:50%;background:currentColor}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:20px}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--jade)}
.crumb span.sep{color:var(--line)}
.crumb strong{color:var(--ink);font-weight:600}

/* ---------- 首屏（纯色 + 云弧） ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--paper-2);
  border-bottom:1px solid var(--line);
  padding-block:clamp(40px,5vw,64px) clamp(44px,5.5vw,72px);
}
.page-hero .arc{
  position:absolute;right:-18%;top:-40%;width:780px;height:780px;border-radius:50%;
  border:1px solid rgba(222,58,34,.25);pointer-events:none;
}
.page-hero .arc--two{
  right:-6%;top:16%;width:520px;height:520px;border-color:rgba(47,126,111,.2);
}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{margin:16px 0 18px;max-width:16em}
.page-hero .lead{max-width:640px;font-size:17px;color:var(--text-2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

/* ---------- 页内锚点 ---------- */
.anchor-bar{
  position:relative;z-index:3;
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:32px;
}
.anchor-bar a{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;
  border:1px solid var(--line);border-radius:999px;
  background:#fff;font-size:14px;font-weight:600;color:var(--text-2);
  transition:border-color var(--tr),color var(--tr),transform var(--tr),box-shadow var(--tr);
}
.anchor-bar a:hover{border-color:var(--jade);color:var(--jade-dark);transform:translateY(-2px);box-shadow:var(--sd1)}

/* ---------- 双栏问答 ---------- */
.qa-grid{border-top:1px solid var(--line)}
.qa-row{
  display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.6fr);
  gap:clamp(20px,4vw,48px);
  padding:26px 0;border-bottom:1px solid var(--line);
}
.qa-q{display:flex;gap:12px;font-size:19px;line-height:1.5}
.qa-q::before{
  content:"";flex:none;width:8px;height:8px;border-radius:50%;
  background:var(--cinnabar);margin-top:11px;
}
.qa-a{color:var(--text-2);font-size:15.5px}

/* ---------- 参数对比 ---------- */
.compare-wrap{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.4fr);gap:clamp(24px,4vw,40px);align-items:start}
.compare-media{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:14px;box-shadow:var(--sd1)}
.compare-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-inner)}
.compare-cap{margin:12px 0 0;font-size:13px;color:var(--text-3);line-height:1.7}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sd1)}
.spec-table{border-collapse:collapse;width:100%;min-width:560px;font-size:15px}
.spec-table caption{text-align:left;padding:18px 20px 0;font-size:14px;color:var(--text-3)}
.spec-table th,.spec-table td{padding:15px 20px;text-align:left;border-bottom:1px solid var(--line)}
.spec-table thead th{background:var(--paper-2);font-size:14px;letter-spacing:.04em;color:var(--text-2)}
.spec-table thead th:last-child{color:var(--cinnabar-dark)}
.spec-table tbody tr:nth-child(odd){background:var(--paper)}
.spec-table tbody tr:nth-child(even){background:#fff}
.spec-table tbody th{font-weight:600;color:var(--ink);white-space:nowrap}
.spec-table tbody td{color:var(--text-2)}

/* ---------- 优势条 ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
.stat-block{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px 22px;box-shadow:var(--sd1)}
.stat-block .num{display:block;font-size:32px;font-weight:700;color:var(--gold);line-height:1.1}
.stat-block span{font-size:13px;color:var(--text-3)}

/* ---------- FAQ 手风琴 ---------- */
.faq{max-width:860px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0;background:none;border:none;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;
}
.faq-q:hover{color:var(--cinnabar-dark)}
.faq-q .ico{
  flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;transition:transform var(--tr),background var(--tr),border-color var(--tr);
}
.faq-q .ico svg{width:14px;height:14px;stroke:var(--text-2)}
.faq-item.is-open .faq-q .ico{transform:rotate(45deg);background:var(--cinnabar);border-color:var(--cinnabar)}
.faq-item.is-open .faq-q .ico svg{stroke:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms cubic-bezier(.2,.7,.3,1)}
.faq-a p{padding:0 0 22px;color:var(--text-2);font-size:15.5px;max-width:70ch}
.faq-item.is-open .faq-a{max-height:340px}

/* ---------- 相关分类 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sd1);transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sd2);border-color:#D8CABA}
.rel-card__media{overflow:hidden;border-radius:var(--r-card) var(--r-card) 0 0}
.rel-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform var(--tr)}
.rel-card:hover .rel-card__media img{transform:scale(1.04)}
.rel-card__body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-card__body h3{font-size:19px}
.rel-card__body p{font-size:14.5px;color:var(--text-2);line-height:1.75;margin:0}
.rel-card__link{margin-top:auto;font-size:14px;font-weight:600;color:var(--cinnabar-dark)}
.rel-card__link:hover{color:var(--jade-dark)}

/* ---------- CTA + 表单 ---------- */
.cta-section{background:var(--ink);color:#EFE7DE;position:relative;overflow:hidden}
.cta-section .arc{
  position:absolute;left:-14%;bottom:-58%;width:720px;height:720px;border-radius:50%;
  border:1px solid rgba(222,58,34,.28);pointer-events:none;
}
.cta-section .container{position:relative;z-index:2}
.cta-grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:clamp(28px,4vw,56px);align-items:start}
.cta-copy h2{color:#FBF6F0;display:flex;align-items:center;gap:12px}
.cta-copy h2::before{content:"";flex:none;width:4px;height:28px;border-radius:2px;background:var(--cinnabar)}
.cta-copy p{color:#C0B6AB;margin-top:16px}
.cta-points{list-style:none;padding:0;margin:24px 0 0}
.cta-points li{display:flex;gap:10px;align-items:flex-start;color:#DDD3C8;font-size:15px;margin-bottom:12px}
.cta-points svg{flex:none;width:20px;height:20px;stroke:var(--gold);margin-top:4px}
.cta-contact{margin-top:26px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);font-size:14.5px;color:#B9AEA3}
.cta-contact strong{color:#F3EAE0;font-weight:600}

.form-card{background:#fff;border-radius:var(--r-card);padding:clamp(22px,3vw,32px);box-shadow:var(--sd2)}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field--full{grid-column:1/-1}
.field label{font-size:14px;font-weight:600;color:var(--text-2)}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;
  background:var(--paper);color:var(--text);transition:border-color var(--tr),box-shadow var(--tr),background var(--tr);
}
.field textarea{min-height:104px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--cinnabar);background:#fff;box-shadow:0 0 0 3px rgba(222,58,34,.16);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--cinnabar-dark);background:#FDF2EF}
.err{display:none;font-size:12px;color:var(--cinnabar-dark)}
.field.has-error .err{display:block}
.check-row{display:flex;gap:10px;align-items:flex-start;grid-column:1/-1;font-size:13.5px;color:var(--text-2);line-height:1.7}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--cinnabar)}
.form-actions{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:4px}
.form-note{font-size:12.5px;color:var(--text-3)}
.form-success{
  grid-column:1/-1;display:none;padding:14px 16px;border-radius:12px;
  background:var(--jade-soft);color:var(--jade-dark);font-size:14px;font-weight:600;
}
.form-success.is-visible{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-2);color:#B9AEA3;padding-block:clamp(48px,6vw,72px) 0}
.foot-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:clamp(24px,4vw,44px)}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-brand .brand__mark{width:40px;height:40px;background:#241C17;border-radius:12px;display:grid;place-items:center}
.foot-brand .brand__mark svg{width:22px;height:22px;stroke:#fff}
.foot-brand__main{display:block;font-size:16px;font-weight:700;color:#FBF6F0}
.foot-brand__sub{display:block;font-size:11px;letter-spacing:2px;color:#8B8078}
.site-footer p{font-size:14px;line-height:1.85;color:#9C918A;max-width:34em}
.foot-col h4{font-size:15px;color:#FBF6F0;margin-bottom:16px}
.foot-col ul{list-style:none;padding:0;margin:0}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:14px;color:#B9AEA3}
.foot-col a:hover{color:#F3EAE0}
.foot-bar{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:clamp(32px,4vw,52px);padding:20px 0;
  border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:#8B8078;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .qa-row{grid-template-columns:1fr;gap:10px}
  .compare-wrap{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .nav-bar{min-height:60px}
  .nav-toggle{display:grid}
  .nav-cta{display:none}
  .nav-links{
    position:fixed;top:60px;right:0;width:82%;height:calc(100vh - 60px);
    flex-direction:column;align-items:flex-start;gap:0;margin:0;
    padding:18px 24px 40px;background:var(--ink);
    transform:translateX(102%);transition:transform 260ms cubic-bezier(.2,.7,.3,1);
    overflow-y:auto;
  }
  .nav-links.is-open{transform:none}
  .nav-links a{
    width:100%;color:#F3EAE0;font-size:18px;line-height:56px;
    border-bottom:1px solid rgba(255,255,255,.09);
  }
  .nav-links a::after{display:none}
  .nav-links a:hover,.nav-links a.is-active{color:#fff}
  .page-hero .arc,.page-hero .arc--two{display:none}
  .stat-strip{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .spec-table{min-width:520px}
}
@media (max-width:560px){
  body{font-size:15px}
  .hero-actions .btn{width:100%}
  .qa-q{font-size:17px}
  .stat-block .num{font-size:28px}
  .spec-table th,.spec-table td{padding:12px 14px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .rel-card:hover,.btn:hover,.nav-cta:hover,.anchor-bar a:hover{transform:none}
  .rel-card:hover .rel-card__media img{transform:none}
}