/* roulang page: index */
:root{
  --ink:#1B1533;
  --ink-2:#2A2247;
  --ink-3:#38305C;
  --gold:#D9A03C;
  --gold-hover:#C08A2B;
  --gold-dis:#E6D6B4;
  --cyan:#2F7F86;
  --paper:#FAF7F2;
  --paper-2:#F1ECE4;
  --text:#1A1626;
  --text-2:#5C5670;
  --text-3:#8E8899;
  --line:#E4DED3;
  --line-dark:rgba(255,255,255,.10);
  --success:#3F7A5E;
  --warn:#B4553C;
  --r-card:14px;
  --r-img:10px;
  --r-pill:999px;
  --r-input:8px;
  --sh-1:0 1px 2px rgba(27,21,51,.06);
  --sh-2:0 18px 40px -20px rgba(27,21,51,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
  --dur:240ms;
  --serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC",-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--cyan);text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--gold-hover)}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;color:var(--ink);letter-spacing:-0.02em;margin:0}
h1{font-size:clamp(34px,5vw,56px);line-height:1.15}
h2{font-size:clamp(24px,3vw,34px);line-height:1.25}
h3{font-size:21px;line-height:1.4;letter-spacing:-0.01em}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px;border-radius:4px}
::selection{background:rgba(217,160,60,.25)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:104px 0}
.section-tight{padding:72px 0}
.bg-alt{background:var(--paper-2)}
.bg-ink{background:var(--ink);color:#fff}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.18em;color:var(--cyan);
  text-transform:uppercase;margin-bottom:14px;font-weight:500;
}
.sec-head{margin-bottom:56px;max-width:760px}
.sec-head h2{margin-bottom:16px}
.sec-head p{color:var(--text-2);font-size:16.5px;margin:0}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:56px}
.sec-head-row .sec-head{margin-bottom:0}
.rule{width:48px;height:3px;background:var(--gold);border:0;margin:0 0 22px}
.muted{color:var(--text-3);font-size:13px}
.text-link{
  color:var(--ink);font-size:14.5px;font-weight:500;position:relative;padding-bottom:3px;
  border-bottom:1px solid rgba(27,21,51,.22);transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.text-link:hover{border-color:var(--gold);color:var(--gold-hover)}
.text-link.is-cyan{color:var(--cyan);border-color:rgba(47,127,134,.35)}
.text-link.is-cyan:hover{color:var(--gold-hover);border-color:var(--gold)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--sans);font-size:15px;font-weight:500;line-height:1;
  padding:15px 30px;border-radius:var(--r-pill);border:1px solid transparent;
  cursor:pointer;letter-spacing:.02em;white-space:nowrap;
  transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease),
             border-color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
  background:transparent;
}
.btn-gold{background:var(--gold);color:#221A0C;box-shadow:var(--sh-1)}
.btn-gold:hover{background:var(--gold-hover);color:#221A0C;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-gold:active{transform:translateY(0)}
.btn-gold[disabled],.btn-gold.is-disabled{background:var(--gold-dis);color:#7A6B4A;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{border-color:rgba(27,21,51,.22);color:var(--ink)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold-hover);transform:translateY(-2px)}
.btn-ghost-light{border-color:var(--line-dark);color:#fff}
.btn-ghost-light:hover{border-color:var(--gold);color:var(--gold)}
.btn-sm{padding:11px 22px;font-size:14px}
.btn-block{width:100%}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;line-height:1;
  padding:7px 13px;border-radius:var(--r-pill);border:1px solid var(--line);
  color:var(--text-2);background:#fff;letter-spacing:.02em;
}
.badge-gold{border-color:rgba(217,160,60,.5);background:rgba(217,160,60,.10);color:#9A6C1E}
.badge-cyan{border-color:rgba(47,127,134,.35);background:rgba(47,127,134,.08);color:#256A70}
.badge-ghost{border-color:var(--line-dark);background:rgba(255,255,255,.04);color:rgba(255,255,255,.78)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:900;
  background:rgba(250,247,242,0);
  transition:background-color var(--dur) var(--ease),border-color var(--dur) var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{background:rgba(250,247,242,.94);border-bottom-color:var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:74px;gap:24px}
.brand{display:flex;align-items:baseline;gap:9px;color:var(--ink);flex-shrink:0}
.brand:hover{color:var(--ink)}
.brand-mark{font-family:var(--serif);font-size:20px;font-weight:700;letter-spacing:0}
.brand-sub{font-size:12px;color:var(--text-3);letter-spacing:.14em}
.main-nav{display:flex;align-items:center;gap:30px}
.main-nav a{
  position:relative;font-size:15px;color:var(--text-2);letter-spacing:.02em;padding:6px 0;
  transition:color var(--dur) var(--ease);
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--gold);
  transition:width var(--dur) var(--ease);
}
.main-nav a:hover{color:var(--ink)}
.main-nav a:hover::after{width:100%}
.main-nav a.active{color:var(--ink);font-weight:500}
.main-nav a.active::after{width:100%}
.nav-cta{padding:12px 24px;font-size:14px}
.nav-toggle{
  display:none;width:40px;height:40px;border:0;background:transparent;cursor:pointer;
  flex-direction:column;justify-content:center;gap:5px;padding:0 9px;margin-left:auto;
}
.nav-toggle span{display:block;height:1.5px;background:var(--ink);width:100%;transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
.drawer{
  position:fixed;inset:0;background:var(--paper);z-index:950;
  padding:96px 28px 40px;display:flex;flex-direction:column;
  transform:translateY(-100%);opacity:0;pointer-events:none;
  transition:transform 320ms var(--ease),opacity 240ms var(--ease);
}
.drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
.drawer nav{display:flex;flex-direction:column}
.drawer nav a{
  padding:20px 2px;font-size:18px;color:var(--ink);font-family:var(--serif);
  border-bottom:1px solid var(--line);
}
.drawer nav a.active{color:var(--gold-hover)}
.drawer-close{
  position:absolute;top:22px;right:22px;width:40px;height:40px;border:1px solid var(--line);
  border-radius:50%;background:transparent;cursor:pointer;line-height:1;font-size:20px;color:var(--ink);
}
.drawer-foot{margin-top:auto;padding-top:28px}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:150px 0 96px;min-height:78vh;display:flex;align-items:center;
  background:linear-gradient(180deg,#F5F0E8 0%,var(--paper) 78%);
  overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:64px;align-items:center;width:100%}
.hero h1{margin-bottom:22px}
.hero-sub{font-size:17px;color:var(--text-2);max-width:480px;margin-bottom:34px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-bottom:52px}
.hero-stats{display:flex;flex-wrap:wrap;gap:44px;border-top:1px solid var(--line);padding-top:28px}
.hero-stat .num{
  font-family:var(--serif);font-size:36px;font-weight:700;color:var(--ink);line-height:1;
  letter-spacing:-0.03em;font-variant-numeric:tabular-nums;
}
.hero-stat .num small{font-size:16px;font-weight:600;margin-left:2px}
.hero-stat .lab{font-size:12px;color:var(--text-3);letter-spacing:.08em;margin-top:8px}
.hero-visual{position:relative}
.hero-visual .frame{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid rgba(27,21,51,.14);box-shadow:var(--sh-2);background:var(--ink-2);
  aspect-ratio:4/3;
}
.hero-visual .frame img{width:100%;height:100%;object-fit:cover;transition:transform 600ms var(--ease)}
.hero-visual .frame:hover img{transform:scale(1.03)}
.hero-visual .grain{
  position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.28) 1px,transparent 1px);
  background-size:26px 26px;opacity:.35;mix-blend-mode:overlay;
}
.hero-visual .cap{
  position:absolute;left:-18px;bottom:26px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:16px 20px;box-shadow:var(--sh-1);max-width:230px;
}
.hero-visual .cap strong{display:block;font-family:var(--serif);font-size:16px;color:var(--ink);margin-bottom:4px}
.hero-visual .cap span{font-size:12.5px;color:var(--text-3);line-height:1.6}

/* ---------- 信任细条 ---------- */
.trust{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}
.trust-row{display:flex;align-items:center;justify-content:space-between;gap:28px;height:56px;overflow-x:auto}
.trust-row span{
  font-size:12.5px;letter-spacing:.14em;color:var(--text-2);white-space:nowrap;
  display:flex;align-items:center;gap:9px;
}
.trust-row span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--gold);flex-shrink:0}

/* ---------- 优惠阶梯 ---------- */
.ladder{display:flex;flex-direction:column;gap:0;position:relative}
.ladder-item{
  display:grid;grid-template-columns:auto 1fr;gap:32px;position:relative;
  padding:30px 0 30px 0;
}
.ladder-item::before{
  content:"";position:absolute;left:9px;top:0;bottom:0;width:1px;background:var(--line);
}
.ladder-item:first-child::before{top:44px}
.ladder-item:last-child::before{bottom:calc(100% - 44px)}
.ladder-node{
  position:relative;z-index:2;width:19px;height:19px;border-radius:50%;
  border:1px solid var(--gold);background:var(--paper);margin-top:30px;
  display:flex;align-items:center;justify-content:center;
}
.ladder-node::after{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold)}
.ladder-body{
  display:grid;grid-template-columns:120px 1fr auto;gap:28px;align-items:baseline;
  padding:26px 30px;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;
  box-shadow:var(--sh-1);transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.ladder-body:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(217,160,60,.45)}
.ladder-no{
  font-family:var(--serif);font-size:40px;font-weight:700;color:var(--line);line-height:1;
  letter-spacing:-0.03em;
}
.ladder-body h3{margin-bottom:8px}
.ladder-body p{margin:0;color:var(--text-2);font-size:15px}
.ladder-side{display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.ladder-cta{margin-top:40px;padding-left:51px}

/* ---------- 套餐对比 ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;align-items:start}
.plan{
  border:1px solid var(--line);border-radius:var(--r-card);background:#fff;
  padding:36px 30px;box-shadow:var(--sh-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.plan:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.plan.is-featured{
  border-color:var(--gold);transform:translateY(-12px);
  box-shadow:0 26px 48px -26px rgba(217,160,60,.5);position:relative;
}
.plan.is-featured:hover{transform:translateY(-16px)}
.plan-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}
.plan-head h3{font-size:20px}
.plan-note{font-size:13.5px;color:var(--text-3);margin-bottom:24px}
.plan-price{
  font-family:var(--serif);font-size:46px;font-weight:700;color:var(--ink);line-height:1;
  letter-spacing:-0.03em;font-variant-numeric:tabular-nums;
}
.plan-price small{font-size:15px;font-weight:500;color:var(--text-3);margin-left:6px;letter-spacing:0}
.plan-price .slash{font-size:14px;color:var(--text-3);font-family:var(--sans)}
.plan-list{margin:28px 0 30px;border-top:1px solid var(--line)}
.plan-list li{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:13px 0;border-bottom:1px solid var(--line);font-size:14.5px;color:var(--text-2);
}
.plan-list li span:last-child{color:var(--ink);font-weight:500;text-align:right}
.plan-list li.is-off span:last-child{color:var(--text-3);font-weight:400}

/* ---------- 限时条 ---------- */
.urgent{
  background:var(--ink);color:#fff;position:relative;overflow:hidden;
  border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark);
}
.urgent::after{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;opacity:.14;pointer-events:none;
}
.urgent .container{position:relative;z-index:2}
.urgent-grid{display:grid;grid-template-columns:1fr auto;gap:44px;align-items:center;padding:60px 0}
.urgent h2{color:#fff;margin-bottom:14px}
.urgent p{color:rgba(255,255,255,.66);font-size:15px;margin:0;max-width:560px}
.cd{display:flex;gap:12px;margin-bottom:26px}
.cd-unit{
  border:1px solid var(--line-dark);border-radius:12px;padding:12px 4px;width:74px;text-align:center;
  background:rgba(255,255,255,.03);
}
.cd-num{
  display:block;font-family:var(--serif);font-size:28px;font-weight:700;color:#fff;
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.cd-lab{display:block;font-size:11.5px;color:rgba(255,255,255,.5);letter-spacing:.14em;margin-top:4px}
.urgent-actions{display:flex;flex-direction:column;align-items:flex-start;gap:14px}

/* ---------- 表单 ---------- */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.contact-points{display:flex;flex-direction:column;gap:0;margin-top:32px;border-top:1px solid var(--line)}
.contact-points li{
  padding:18px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:auto 1fr;gap:16px;
}
.contact-points li b{font-size:13px;color:var(--gold);font-family:var(--serif);letter-spacing:.06em}
.contact-points li span{font-size:14.5px;color:var(--text-2)}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:40px;box-shadow:var(--sh-1);
}
.field{margin-bottom:22px}
.field label{display:block;font-size:13.5px;font-weight:500;color:var(--ink);margin-bottom:8px;letter-spacing:.02em}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border:1px solid var(--line);border-radius:var(--r-input);
  background:#FDFCFA;font-size:15px;line-height:1.5;transition:border-color var(--dur) var(--ease),background-color var(--dur) var(--ease);
  box-shadow:none;height:auto;margin:0;
}
.field textarea{min-height:120px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#B7B1C0}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--gold);background:#fff;
}
.field select{
  appearance:none;-webkit-appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,var(--text-2) 50%),linear-gradient(135deg,var(--text-2) 50%,transparent 50%);
  background-position:calc(100% - 20px) calc(50% - 2px),calc(100% - 14px) calc(50% - 2px);
  background-size:6px 6px,6px 6px;background-repeat:no-repeat;
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-privacy{font-size:12.5px;color:var(--text-3);margin-top:16px;line-height:1.6}

/* ---------- 资讯卡 ---------- */
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.post-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(217,160,60,.4)}
.post-cover{position:relative;aspect-ratio:16/10;background:var(--ink-2);overflow:hidden}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease)}
.post-card:hover .post-cover img{transform:scale(1.03)}
.post-body{padding:24px 24px 20px;display:flex;flex-direction:column;flex:1}
.post-body h3{font-size:18.5px;margin:14px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body h3 a{color:var(--ink)}
.post-body h3 a:hover{color:var(--gold-hover)}
.post-excerpt{
  font-size:14px;color:var(--text-2);margin:0 0 20px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}
.empty-state{
  grid-column:1/-1;border:1px dashed var(--line);border-radius:var(--r-card);
  padding:64px 24px;text-align:center;background:#fff;
}
.empty-state p{color:var(--text-2);margin-bottom:16px}

/* ---------- FAQ ---------- */
.faq{max-width:900px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:transparent;border:0;cursor:pointer;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:24px 4px;font-size:17px;font-weight:500;color:var(--ink);font-family:var(--sans);
  transition:color var(--dur) var(--ease);
}
.faq-q:hover{color:var(--gold-hover)}
.faq-icon{position:relative;width:16px;height:16px;flex-shrink:0}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--gold);transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.faq-icon::before{left:0;top:7.5px;width:16px;height:1.5px}
.faq-icon::after{top:0;left:7.5px;width:1.5px;height:16px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{padding:0 4px 26px;max-width:760px;color:var(--text-2);font-size:15px;line-height:1.85;display:none}
.faq-item.is-open .faq-a{display:block}
.faq-foot{text-align:center;margin-top:44px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:80px 0 0;border-top:1px solid var(--line-dark)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:60px}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand .brand-mark{color:#fff}
.footer-brand .brand-sub{color:rgba(255,255,255,.45)}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.55);max-width:280px;margin:0}
.footer-col h4{
  font-family:var(--sans);font-size:13px;font-weight:500;color:#fff;letter-spacing:.16em;
  margin-bottom:20px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-col a:hover{color:var(--gold)}
.footer-col li{font-size:14px;color:rgba(255,255,255,.66)}
.footer-bottom{
  border-top:1px solid var(--line-dark);padding:26px 0;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.42);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:100%}
  .hero-grid{gap:44px}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:36px}
}
@media (max-width:1023px){
  .section{padding:80px 0}
  .main-nav,.nav-cta.desktop-only{display:none}
  .nav-toggle{display:flex}
  .hero{padding:126px 0 76px;min-height:auto}
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero-sub{max-width:100%}
  .hero-visual .cap{left:12px;bottom:12px}
  .urgent-grid{grid-template-columns:1fr;gap:32px;padding:52px 0}
  .contact-grid{grid-template-columns:1fr;gap:40px}
  .plans{grid-template-columns:1fr;gap:20px}
  .plan.is-featured{transform:none}
  .plan.is-featured:hover{transform:translateY(-4px)}
  .posts{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .ladder-body{grid-template-columns:90px 1fr auto;gap:20px;padding:22px 24px}
  .ladder-cta{padding-left:51px}
}
@media (max-width:767px){
  .section{padding:64px 0}
  .section-tight{padding:52px 0}
  .container{padding:0 18px}
  .sec-head{margin-bottom:40px}
  .sec-head-row{flex-direction:column;align-items:flex-start;gap:18px;margin-bottom:40px}
  .hero-stats{gap:30px}
  .hero-stat .num{font-size:30px}
  .ladder-item{gap:20px}
  .ladder-body{grid-template-columns:1fr;gap:12px}
  .ladder-no{font-size:30px}
  .ladder-side{align-items:flex-start;flex-direction:row;flex-wrap:wrap}
  .ladder-cta{padding-left:39px}
  .urgent-actions{flex-direction:row;flex-wrap:wrap;align-items:center;gap:16px}
  .form-card{padding:26px 20px}
  .field-row{grid-template-columns:1fr;gap:0}
  .posts{grid-template-columns:1fr}
  .cd-unit{width:66px;padding:10px 2px}
  .cd-num{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:34px;padding-bottom:44px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-q{font-size:16px;padding:20px 2px}
}
@media (max-width:480px){
  h1{font-size:30px}
  .brand-mark{font-size:18px}
  .brand-sub{display:none}
  .hero{padding:112px 0 60px}
  .hero-actions{gap:14px}
  .hero-actions .btn{width:100%}
  .btn{padding:14px 24px}
  .plan-price{font-size:38px}
}

/* roulang page: category1 */
:root{
  --ink:#1B1533;
  --ink-2:#2A2247;
  --ink-3:#38305C;
  --gold:#D9A03C;
  --gold-hover:#C08A2B;
  --gold-dis:#E6D6B4;
  --teal:#2F7F86;
  --bg:#FAF7F2;
  --bg-2:#F1ECE4;
  --txt:#1A1626;
  --txt-2:#5C5670;
  --txt-3:#8E8899;
  --line:#E4DED3;
  --line-dark:rgba(255,255,255,.10);
  --ok:#3F7A5E;
  --warn:#B4553C;
  --r-card:14px;
  --r-img:10px;
  --r-pill:999px;
  --r-input:8px;
  --sh-1:0 1px 2px rgba(27,21,51,.06);
  --sh-2:0 18px 40px -20px rgba(27,21,51,.28);
  --t:240ms cubic-bezier(.2,.7,.2,1);
  --serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --mono:"SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--txt);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color var(--t),border-color var(--t),background-color var(--t)}
button{font-family:inherit}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);font-weight:600;letter-spacing:-0.02em;margin:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.gold-bar{display:block;width:48px;height:3px;background:var(--gold);border:0;margin:20px 0 24px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.eyebrow{font-size:13px;letter-spacing:.16em;color:var(--teal);text-transform:uppercase;margin-bottom:14px;font-weight:500}
.lead{font-size:17px;color:var(--txt-2);line-height:1.9}
.text-link{color:var(--teal);border-bottom:1px solid rgba(47,127,134,.35);padding-bottom:2px}
.text-link:hover{color:var(--gold-hover);border-color:var(--gold)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-pill);font-size:15px;font-weight:500;letter-spacing:.02em;padding:13px 30px;border:1px solid transparent;cursor:pointer;transition:transform var(--t),background-color var(--t),border-color var(--t),color var(--t)}
.btn-gold{background:var(--gold);color:#221A08;border-color:var(--gold)}
.btn-gold:hover{background:var(--gold-hover);border-color:var(--gold-hover);color:#1A1608;transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold-hover);transform:translateY(-2px)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn-ghost-light:hover{border-color:var(--gold);color:var(--gold)}
.btn-row{display:flex;flex-wrap:wrap;gap:16px;align-items:center}
.link-plain{display:inline-block;font-size:15px;color:var(--ink);border-bottom:1px solid var(--line);padding-bottom:3px}
.link-plain:hover{color:var(--gold-hover);border-color:var(--gold)}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;font-size:12.5px;letter-spacing:.04em;padding:4px 12px;border-radius:var(--r-pill);border:1px solid var(--line);color:var(--txt-2);background:rgba(217,160,60,.08)}
.badge-gold{border-color:rgba(217,160,60,.5);color:var(--gold-hover);background:rgba(217,160,60,.10)}
.badge-teal{border-color:rgba(47,127,134,.4);color:var(--teal);background:rgba(47,127,134,.08)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- 导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;background:transparent;border-bottom:1px solid transparent;transition:background-color var(--t),border-color var(--t)}
.site-header.is-scrolled{background:rgba(250,247,242,.94);border-bottom:1px solid var(--line);backdrop-filter:saturate(140%) blur(6px)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;min-height:76px;gap:24px}
.brand{display:flex;flex-direction:column;line-height:1.2}
.brand-mark{font-family:var(--serif);font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.01em}
.brand-sub{font-size:11px;letter-spacing:.22em;color:var(--txt-3);margin-top:3px}
.main-nav{display:flex;align-items:center;gap:28px}
.main-nav a{position:relative;font-size:15px;letter-spacing:.02em;color:var(--txt-2);padding:6px 0}
.main-nav a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--gold);transition:width var(--t)}
.main-nav a:hover{color:var(--ink)}
.main-nav a:hover::after{width:100%}
.main-nav a.active{color:var(--ink)}
.main-nav a.active::after{width:100%}
.nav-cta{padding:10px 22px;font-size:14px}
.nav-toggle{display:none;width:40px;height:34px;border:0;background:transparent;padding:6px 4px;cursor:pointer}
.nav-toggle span{display:block;height:1.5px;background:var(--ink);margin:5px 0;border-radius:2px;transition:transform var(--t),opacity var(--t)}
.mobile-drawer{position:fixed;inset:0;background:var(--bg);z-index:80;display:none;flex-direction:column;padding:24px}
.mobile-drawer.open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;min-height:52px;border-bottom:1px solid var(--line);padding-bottom:16px}
.drawer-close{border:0;background:transparent;font-size:26px;line-height:1;color:var(--ink);cursor:pointer;padding:4px 8px}
.drawer-nav{margin-top:8px}
.drawer-nav a{display:block;padding:18px 2px;font-size:17px;border-bottom:1px solid var(--line);color:var(--ink)}
.drawer-nav a.active{color:var(--gold-hover)}
.drawer-foot{margin-top:auto;padding-top:24px}
.drawer-foot .btn{width:100%}

/* ---------- 页面头 ---------- */
.page-head{background:var(--ink);color:#fff;padding:150px 0 88px;position:relative;overflow:hidden}
.page-head::after{content:"";position:absolute;right:-120px;top:-60px;width:520px;height:520px;background:radial-gradient(circle,rgba(217,160,60,.22),transparent 62%);pointer-events:none}
.page-head .eyebrow{color:var(--gold)}
.page-head h1{color:#fff;font-size:clamp(30px,4.4vw,48px);line-height:1.2;max-width:760px}
.page-head .lead{color:rgba(255,255,255,.74);max-width:660px;margin-top:20px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:rgba(255,255,255,.6);margin-bottom:22px}
.breadcrumb a{color:rgba(255,255,255,.72)}
.breadcrumb a:hover{color:var(--gold)}
.breadcrumb .sep{color:rgba(255,255,255,.3)}
.breadcrumb .current{color:var(--gold)}

/* ---------- 指南布局 ---------- */
.guide-section{padding:88px 0 96px}
.guide-layout{display:grid;grid-template-columns:340px 1fr;gap:64px;align-items:start}
.guide-aside{position:sticky;top:104px}
.aside-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:32px 28px}
.aside-card h1{font-size:clamp(23px,2.2vw,28px);line-height:1.35}
.aside-card .lead{font-size:15px;margin-top:18px}
.aside-nav{margin-top:26px;border-top:1px solid var(--line);padding-top:18px}
.aside-nav a{display:flex;align-items:center;gap:10px;font-size:14.5px;color:var(--txt-2);padding:11px 0;border-bottom:1px solid var(--line)}
.aside-nav a:last-child{border-bottom:0}
.aside-nav a:hover{color:var(--gold-hover)}
.aside-nav .num{font-family:var(--serif);font-size:13px;color:var(--gold);min-width:20px}
.aside-meta{margin-top:24px;font-size:13px;color:var(--txt-3);line-height:1.8}
.guide-main{min-width:0}
.step-block{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center;padding:36px 0;border-bottom:1px solid var(--line)}
.step-block:first-child{padding-top:0}
.step-block:last-of-type{border-bottom:0}
.step-num{font-family:var(--serif);font-size:44px;line-height:1;color:var(--gold);letter-spacing:-.04em;display:block;margin-bottom:14px}
.step-block h2{font-size:clamp(21px,2vw,26px);margin-bottom:14px}
.step-block p{color:var(--txt-2);font-size:16px}
.step-figure{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--bg-2);box-shadow:var(--sh-1)}
.step-figure img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0;transition:transform var(--t)}
.step-figure:hover img{transform:scale(1.03)}
.step-notes{margin-top:16px;display:grid;gap:10px}
.step-notes li{font-size:14.5px;color:var(--txt-2);padding-left:16px;position:relative}
.step-notes li::before{content:"";position:absolute;left:0;top:12px;width:7px;height:7px;background:var(--teal);border-radius:2px;opacity:.75}

/* ---------- 核对清单 ---------- */
.check-strip{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:44px}
.check-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:30px 26px;transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(217,160,60,.5)}
.check-card h3{font-size:19px;margin:14px 0 10px}
.check-card p{font-size:15px;color:var(--txt-2)}
.check-icon{width:38px;height:38px;border:1.5px solid var(--gold);border-radius:var(--r-pill);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:16px;color:var(--gold-hover)}

/* ---------- 深色横条 CTA ---------- */
.dark-strip{background:var(--ink);color:#fff;padding:64px 0}
.dark-strip .strip-inner{display:grid;grid-template-columns:1.4fr .6fr;gap:32px;align-items:center}
.dark-strip h2{color:#fff;font-size:clamp(22px,2.4vw,30px)}
.dark-strip p{color:rgba(255,255,255,.72);margin-top:14px;font-size:16px}
.dark-strip .btn-row{justify-content:flex-end}
.count-grid{display:flex;gap:12px;margin-top:24px}
.count-cell{border:1px solid var(--line-dark);border-radius:var(--r-input);padding:10px 14px;min-width:70px;text-align:center}
.count-cell .num{font-family:var(--mono);font-size:24px;color:var(--gold);letter-spacing:.02em;display:block}
.count-cell .unit{font-size:11.5px;color:rgba(255,255,255,.55);letter-spacing:.08em}

/* ---------- 场景区 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:44px}
.scene-card{display:grid;grid-template-columns:112px 1fr;gap:22px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t)}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.scene-card img{width:112px;height:88px;object-fit:cover;border-radius:var(--r-img)}
.scene-card h3{font-size:18px;margin-bottom:8px}
.scene-card p{font-size:14.5px;color:var(--txt-2)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:44px auto 0}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 0;font-size:17px;font-weight:500;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"＋";font-size:17px;color:var(--gold);flex:0 0 auto}
.faq-item[open] summary::after{content:"－"}
.faq-item summary:hover{color:var(--gold-hover)}
.faq-item .answer{padding:0 0 24px;font-size:15px;color:var(--txt-2);line-height:1.9;max-width:760px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-top:32px;border-top:1px solid var(--line-dark)}
.footer-brand .brand-mark{color:#fff;font-size:17px}
.footer-brand p{font-size:14px;margin-top:14px;max-width:240px;color:rgba(255,255,255,.6)}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;font-family:var(--sans);font-weight:500;letter-spacing:.04em}
.footer-col ul li{font-size:14px;padding:7px 0;color:rgba(255,255,255,.66)}
.footer-col ul li a:hover{color:var(--gold)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;border-top:1px solid var(--line-dark);margin-top:48px;padding-top:22px;font-size:13px;color:rgba(255,255,255,.5)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .guide-layout{grid-template-columns:300px 1fr;gap:44px}
  .footer-grid{grid-template-columns:1.2fr 1fr 1fr;gap:32px}
}
@media (max-width:1023px){
  .section{padding:76px 0}
  .guide-section{padding:64px 0 76px}
  .guide-layout{grid-template-columns:1fr;gap:36px}
  .guide-aside{position:static}
  .check-grid{grid-template-columns:1fr 1fr}
  .scene-grid{grid-template-columns:1fr}
  .dark-strip .strip-inner{grid-template-columns:1fr}
  .dark-strip .btn-row{justify-content:flex-start}
  .main-nav{display:none}
  .nav-cta.desktop-only{display:none}
  .nav-toggle{display:block}
  .page-head{padding:130px 0 68px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .guide-section{padding:48px 0 60px}
  .step-block{grid-template-columns:1fr;gap:22px;padding:28px 0}
  .step-block .step-figure{order:-1}
  .step-num{font-size:36px}
  .check-grid{grid-template-columns:1fr}
  .scene-card{grid-template-columns:88px 1fr;gap:16px}
  .scene-card img{width:88px;height:72px}
  .page-head{padding:116px 0 56px}
  .page-head::after{display:none}
  .count-grid{flex-wrap:wrap}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .aside-card{padding:24px 20px}
}
@media (max-width:480px){
  .brand-mark{font-size:16px}
  .btn{width:100%;padding:13px 20px}
  .btn-row{flex-direction:column;align-items:stretch;gap:12px}
  .link-plain{text-align:center}
  .count-cell{min-width:62px;padding:8px 10px}
  .count-cell .num{font-size:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --ink:#1B1533;
  --ink-2:#2A2247;
  --ink-3:#38305C;
  --gold:#D9A03C;
  --gold-hover:#C08A2B;
  --gold-soft:#E6D6B4;
  --teal:#2F7F86;
  --bg:#FAF7F2;
  --bg-2:#F1ECE4;
  --text:#1A1626;
  --text-2:#5C5670;
  --text-3:#8E8899;
  --line:#E4DED3;
  --line-dark:rgba(255,255,255,.10);
  --ok:#3F7A5E;
  --warn:#B4553C;
  --radius-card:14px;
  --radius-img:10px;
  --radius-pill:999px;
  --radius-input:8px;
  --shadow-1:0 1px 2px rgba(27,21,51,.06);
  --shadow-2:0 18px 40px -20px rgba(27,21,51,.28);
  --dur:240ms;
  --ease:cubic-bezier(.2,.7,.2,1);
  --serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --sans:"Noto Sans SC",-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
::selection{background:rgba(217,160,60,.28);color:var(--ink)}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px}

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

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:transparent;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(250,247,242,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:78px}
.brand{display:flex;flex-direction:column;line-height:1.15;gap:3px;min-width:0}
.brand-mark{
  font-family:var(--serif);font-weight:700;font-size:17px;letter-spacing:-.01em;
  color:var(--ink);white-space:nowrap;
}
.brand-sub{font-size:10.5px;letter-spacing:.28em;color:var(--text-3)}
.main-nav{display:flex;align-items:center;gap:22px}
.main-nav a{
  position:relative;font-size:14.5px;letter-spacing:.02em;color:var(--text-2);
  padding:6px 1px;transition:color var(--dur) var(--ease);white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--gold);transition:width var(--dur) var(--ease);
}
.main-nav a:hover{color:var(--ink)}
.main-nav a:hover::after{width:100%}
.main-nav a.active{color:var(--ink);font-weight:500}
.main-nav a.active::after{width:100%}
.nav-cta{padding:9px 22px;font-size:14px;white-space:nowrap}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-pill);font-size:15px;font-weight:500;
  padding:13px 30px;letter-spacing:.01em;cursor:pointer;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),
             transform var(--dur) var(--ease),border-color var(--dur) var(--ease),
             box-shadow var(--dur) var(--ease);
  border:1px solid transparent;
}
.btn-gold{background:var(--gold);color:#241B08;box-shadow:var(--shadow-1)}
.btn-gold:hover{background:var(--gold-hover);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-gold:active{transform:translateY(0)}
.btn-outline{border-color:var(--line);color:var(--ink);background:transparent}
.btn-outline:hover{border-color:var(--gold);color:var(--ink);transform:translateY(-2px)}
.btn-dark{background:var(--ink);color:#F6F1E7}
.btn-dark:hover{background:var(--ink-2);transform:translateY(-2px)}

.nav-toggle{display:none;width:40px;height:40px;flex-direction:column;justify-content:center;gap:5px;align-items:flex-end}
.nav-toggle span{display:block;height:1.5px;width:24px;background:var(--ink);transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease)}
.nav-toggle span:nth-child(2){width:18px}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);width:24px}

.drawer{
  position:fixed;inset:0;z-index:90;background:var(--bg);
  padding:26px 24px 40px;display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform var(--dur) var(--ease);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.drawer-close{width:38px;height:38px;display:flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:50%;font-size:18px;color:var(--text-2)}
.drawer-nav{margin-top:8px}
.drawer-nav a{display:block;padding:16px 2px;font-size:16px;color:var(--text-2);border-bottom:1px solid var(--line)}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--ink)}
.drawer-cta{margin-top:28px}

/* ---------- 阅读进度 ---------- */
.reading-progress{
  position:fixed;top:0;left:0;height:2px;width:0;background:var(--gold);
  z-index:100;transition:width 120ms linear;
}

/* ---------- 文章头部 ---------- */
.article-top{padding:132px 0 0;position:relative}
.article-top::before{
  content:"";position:absolute;inset:0 0 auto 0;height:340px;
  background:linear-gradient(180deg,#F1ECE4 0%,rgba(241,236,228,0) 100%);
  z-index:-1;
}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  font-size:12.5px;color:var(--text-3);letter-spacing:.02em;
}
.breadcrumb a{color:var(--text-3);transition:color var(--dur) var(--ease)}
.breadcrumb a:hover{color:var(--teal)}
.breadcrumb .sep{color:#CFC7B8}
.breadcrumb .current{color:var(--text-2);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-block;vertical-align:bottom}

.article-wrap{max-width:760px;margin:0 auto}
.article-head{padding-top:34px}
.article-cat{
  display:inline-flex;align-items:center;padding:4px 14px;border-radius:var(--radius-pill);
  border:1px solid rgba(47,127,134,.35);color:var(--teal);font-size:12.5px;letter-spacing:.04em;
}
.article-head h1{
  font-family:var(--serif);font-weight:700;
  font-size:clamp(30px,4vw,44px);line-height:1.25;letter-spacing:-.02em;
  color:var(--ink);margin-top:20px;
}
.gold-rule{width:48px;height:3px;background:var(--gold);margin:24px 0 22px}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;
  font-size:13px;color:var(--text-3);
}
.article-meta .dot{color:#D5CDBE}

/* ---------- 正文阅读区 ---------- */
.article-main{padding:44px 0 0}
.article-body{
  font-size:17px;line-height:1.9;color:var(--text);
  overflow-wrap:break-word;word-wrap:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.6em}
.article-body h2{
  font-family:var(--serif);font-weight:600;
  font-size:clamp(22px,2.4vw,28px);line-height:1.35;letter-spacing:-.01em;
  color:var(--ink);margin:2.2em 0 .8em;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;width:3px;height:1em;background:var(--gold);
}
.article-body h3{
  font-family:var(--serif);font-weight:600;font-size:20px;line-height:1.45;
  color:var(--ink);margin:1.8em 0 .6em;
}
.article-body h4{font-size:17px;font-weight:700;color:var(--ink);margin:1.5em 0 .5em}
.article-body a{color:var(--teal);border-bottom:1px solid rgba(47,127,134,.35);padding-bottom:1px;transition:border-color var(--dur) var(--ease)}
.article-body a:hover{border-bottom-color:var(--teal)}
.article-body strong{font-weight:700;color:var(--ink)}
.article-body blockquote{
  margin:1.7em 0;padding:20px 24px;background:var(--bg-2);
  border-left:2px solid var(--gold);border-radius:0 var(--radius-input) var(--radius-input) 0;
  color:var(--text-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul,.article-body ol{margin:0 0 1.6em;padding-left:0}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:.55em}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.75em;width:6px;height:6px;
  background:var(--gold);
}
.article-body ol{counter-reset:olc}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:.55em;counter-increment:olc}
.article-body ol li::before{
  content:counter(olc,decimal-leading-zero);position:absolute;left:0;top:0;
  font-family:var(--serif);font-size:14px;color:var(--gold);line-height:2.1;
}
.article-body img{border-radius:var(--radius-img);margin:1.7em 0;width:100%;height:auto}
.article-body figure{margin:1.7em 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;line-height:1.6}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.7em 0}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}
.article-body th{font-weight:500;color:var(--ink);border-bottom-color:#D6CEBF}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}

.article-empty{
  padding:64px 32px;text-align:center;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);
}
.article-empty p{font-family:var(--serif);font-size:20px;color:var(--ink);margin-bottom:22px}

/* ---------- 文末落款 ---------- */
.article-foot{
  margin-top:56px;padding-top:26px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;padding:4px 13px;border-radius:var(--radius-pill);
  border:1px solid var(--line);font-size:12.5px;color:var(--text-2);background:#fff;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.tag:hover{border-color:var(--gold-soft);color:var(--ink)}
.link-underline{
  font-size:14.5px;color:var(--teal);position:relative;padding-bottom:3px;
}
.link-underline::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:12px;background:var(--teal);
  transition:width var(--dur) var(--ease);
}
.link-underline:hover::after{width:100%}

/* ---------- 相关推荐 ---------- */
.related{padding:88px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px}
.section-head h2{
  font-family:var(--serif);font-weight:600;font-size:clamp(24px,3vw,32px);
  line-height:1.3;letter-spacing:-.02em;color:var(--ink);
}
.section-head .sub{font-size:14px;color:var(--text-3);margin-top:8px}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);position:relative;display:flex;flex-direction:column;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.card::before{
  content:"";position:absolute;left:0;top:0;height:2px;width:0;background:var(--gold);
  transition:width var(--dur) var(--ease);z-index:2;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#DAD2C4}
.card:hover::before{width:100%}
.card-media{
  aspect-ratio:16/10;overflow:hidden;background:var(--bg-2);
}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--dur) var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{
  font-family:var(--serif);font-weight:600;font-size:18px;line-height:1.5;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{font-size:12.5px;color:var(--text-3);margin-top:auto;display:flex;align-items:center;gap:10px}
.card-tag{
  align-self:flex-start;font-size:12px;letter-spacing:.04em;color:var(--teal);
  border:1px solid rgba(47,127,134,.3);border-radius:var(--radius-pill);padding:2px 11px;
}

/* ---------- 咨询条 ---------- */
.article-cta{
  margin-top:88px;background:var(--ink);color:#F3EEE6;
  border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0}
.article-cta h2{
  font-family:var(--serif);font-weight:600;font-size:clamp(22px,2.6vw,30px);
  line-height:1.35;letter-spacing:-.01em;
}
.article-cta p{margin-top:12px;font-size:15px;color:rgba(243,238,230,.66);max-width:560px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(243,238,230,.72);padding:78px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px}
.footer-brand .brand-mark{color:#F6F1E7;font-size:17px}
.footer-brand p{font-size:13.5px;line-height:1.8;color:rgba(243,238,230,.6);margin-top:14px}
.footer-col h4{
  font-family:var(--serif);font-size:15px;font-weight:600;color:#F6F1E7;
  letter-spacing:.02em;margin-bottom:18px;
}
.footer-col li{font-size:13.5px;line-height:2.1;color:rgba(243,238,230,.6)}
.footer-col a{transition:color var(--dur) var(--ease)}
.footer-col a:hover{color:var(--gold)}
.footer-bottom{
  border-top:1px solid var(--line-dark);padding:22px 0;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(243,238,230,.42);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:1000px}
  .main-nav{gap:18px}
  .main-nav a{font-size:14px}
}
@media (max-width:1023px){
  .main-nav,.nav-cta.desktop-only{display:none}
  .nav-toggle{display:flex}
  .article-top{padding-top:112px}
  .related{padding-top:72px}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .brand-mark{font-size:15.5px}
  .article-top{padding-top:100px}
  .article-head h1{font-size:clamp(26px,7vw,32px)}
  .article-body{font-size:16.5px;line-height:1.9}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px;padding:44px 0}
  .rel-grid{grid-template-columns:1fr;gap:20px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
}
@media (max-width:639px){
  .related{padding-top:64px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .article-cta{margin-top:64px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .article-foot{flex-direction:column;align-items:flex-start}
}
@media (max-width:480px){
  .container{padding:0 16px}
  .article-body{font-size:16px}
  .btn{padding:12px 24px;font-size:14.5px}
  .article-empty{padding:48px 22px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important;scroll-behavior:auto !important}
  .card:hover{transform:none}
  .btn:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#1B1533;
  --ink-2:#2A2247;
  --ink-3:#38305C;
  --gold:#D9A03C;
  --gold-h:#C08A2B;
  --gold-d:#E6D6B4;
  --cyan:#2F7F86;
  --bg:#FAF7F2;
  --bg-2:#F1ECE4;
  --white:#FFFFFF;
  --text:#1A1626;
  --text-2:#5C5670;
  --text-3:#8E8899;
  --line:#E4DED3;
  --line-dark:rgba(255,255,255,.10);
  --ok:#3F7A5E;
  --warn:#B4553C;
  --r-card:14px;
  --r-img:10px;
  --r-pill:999px;
  --r-input:8px;
  --sh-1:0 1px 2px rgba(27,21,51,.06);
  --sh-2:0 18px 40px -20px rgba(27,21,51,.28);
  --t:240ms cubic-bezier(.2,.7,.2,1);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:76px;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  font-weight:400;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--cyan);text-decoration:none;transition:color var(--t),border-color var(--t);}
a:hover{color:var(--gold-h);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,h5{margin:0;font-family:"Noto Serif SC","Songti SC",Georgia,serif;font-weight:700;color:var(--ink);letter-spacing:-.02em;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1280px){
  .container{max-width:1280px;padding:0 32px;}
}

/* ---------- Header / Nav ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:120;
  background:rgba(250,247,242,0);
  border-bottom:1px solid transparent;
  transition:background var(--t),border-color var(--t),box-shadow var(--t);
}
.site-header.scrolled{
  background:rgba(250,247,242,.94);
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:28px;
  height:76px;
}
.brand{display:flex;flex-direction:column;line-height:1.2;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  font-family:"Noto Serif SC","Songti SC",serif;
  font-weight:700;
  font-size:19px;
  letter-spacing:-.01em;
}
.brand-sub{
  font-size:12px;
  color:var(--text-3);
  letter-spacing:.22em;
  margin-top:3px;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:auto;
}
.main-nav a{
  position:relative;
  color:var(--text-2);
  font-size:15px;
  letter-spacing:.02em;
  padding:6px 0;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:2px;
  background:var(--gold);
  transition:width var(--t);
}
.main-nav a:hover{color:var(--ink);}
.main-nav a:hover::after{width:100%;}
.main-nav a.active{color:var(--ink);font-weight:500;}
.main-nav a.active::after{width:100%;}
.nav-cta{margin-left:8px;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  margin-left:auto;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  background:var(--white);
  cursor:pointer;
  padding:11px 10px;
  flex-direction:column;
  justify-content:space-between;
}
.nav-toggle span{display:block;height:1.5px;background:var(--ink);border-radius:2px;transition:transform var(--t),opacity var(--t);}

/* Drawer */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:200;
  background:var(--bg);
  transform:translateX(100%);
  transition:transform var(--t);
  display:flex;
  flex-direction:column;
  padding:22px 24px 28px;
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--line);background:transparent;
  border-radius:var(--r-pill);cursor:pointer;color:var(--ink);font-size:18px;line-height:1;
}
.mobile-drawer nav{display:flex;flex-direction:column;}
.mobile-drawer nav a{
  display:block;
  padding:16px 2px;
  border-bottom:1px solid var(--line);
  color:var(--ink);
  font-size:17px;
}
.mobile-drawer nav a.active{color:var(--gold-h);}
.drawer-foot{margin-top:auto;padding-top:26px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:500;
  letter-spacing:.02em;
  border:1px solid transparent;
  cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-gold{background:var(--gold);color:#241B04;box-shadow:var(--sh-1);}
.btn-gold:hover{background:var(--gold-h);color:#1A1303;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-gold:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold-h);}
.btn-dark-ghost{background:transparent;border-color:rgba(255,255,255,.28);color:#fff;}
.btn-dark-ghost:hover{border-color:var(--gold);color:var(--gold);}
.btn-lg{padding:15px 34px;font-size:16px;}
.text-link{
  color:var(--cyan);
  border-bottom:1px solid rgba(47,127,134,.35);
  padding-bottom:2px;
  transition:border-color var(--t),color var(--t);
}
.text-link:hover{color:var(--gold-h);border-color:var(--gold);}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding:88px 0 96px;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(900px 460px at 12% -10%,rgba(217,160,60,.14),transparent 62%),
    radial-gradient(760px 420px at 92% 8%,rgba(47,127,134,.10),transparent 60%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:56px;
  align-items:center;
}
.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.22em;
  color:var(--text-3);
  margin-bottom:18px;
}
.hero-title{
  font-size:clamp(34px,5vw,56px);
  line-height:1.15;
  margin-bottom:22px;
}
.hero-rule{width:48px;height:3px;background:var(--gold);margin-bottom:22px;border-radius:2px;}
.hero-sub{
  font-size:17px;
  color:var(--text-2);
  max-width:34em;
  margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:22px;}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(3,auto);
  gap:40px;
  margin-top:48px;
  padding-top:30px;
  border-top:1px solid var(--line);
}
.stat-num{
  font-family:"Noto Serif SC","Songti SC",Georgia,serif;
  font-weight:700;
  font-size:clamp(26px,3vw,36px);
  color:var(--ink);
  letter-spacing:-.02em;
  line-height:1.1;
}
.stat-label{font-size:12px;color:var(--text-3);letter-spacing:.06em;margin-top:6px;}
.hero-media{
  position:relative;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.hero-media img{
  width:100%;
  height:100%;
  min-height:340px;
  object-fit:cover;
  aspect-ratio:4/3;
}
.hero-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(2px 2px at 18% 24%,rgba(255,255,255,.55),transparent 100%),
    radial-gradient(1.6px 1.6px at 62% 16%,rgba(255,255,255,.42),transparent 100%),
    radial-gradient(1.6px 1.6px at 82% 58%,rgba(255,255,255,.36),transparent 100%),
    linear-gradient(180deg,rgba(27,21,51,.06),rgba(27,21,51,.26));
  pointer-events:none;
}

/* ---------- Trust bar ---------- */
.trust-bar{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:var(--bg-2);
}
.trust-inner{
  display:flex;
  align-items:center;
  gap:40px;
  min-height:56px;
  padding:14px 0;
  overflow-x:auto;
  scrollbar-width:none;
}
.trust-inner::-webkit-scrollbar{display:none;}
.trust-item{
  white-space:nowrap;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--text-2);
  display:flex;
  align-items:center;
  gap:10px;
}
.trust-item::before{
  content:"";
  width:6px;height:6px;
  border-radius:50%;
  background:var(--gold);
  flex:0 0 auto;
}

/* ---------- Sections ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-alt{background:var(--bg-2);}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head .eyebrow{margin-bottom:12px;}
.section-title{font-size:clamp(24px,3vw,34px);line-height:1.25;}
.section-desc{margin-top:16px;color:var(--text-2);font-size:16px;}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  padding:22px 0 0;
  font-size:13px;
  color:var(--text-3);
}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:0;padding:0;list-style:none;}
.breadcrumb li{display:flex;align-items:center;gap:10px;}
.breadcrumb li+li::before{content:"/";color:var(--line);}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--gold-h);}
.breadcrumb [aria-current="page"]{color:var(--text-3);}

/* ---------- Compare blocks (signature layout) ---------- */
.compare-panel{
  border-top:1px solid var(--line);
  padding-top:8px;
}
.compare-panel + .compare-panel{margin-top:64px;}
.compare-panel-head{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:32px;
  align-items:baseline;
  padding:26px 0 20px;
  border-bottom:1px solid var(--line);
}
.compare-panel-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;}
.compare-panel-head p{color:var(--text-2);font-size:15px;margin:0;}
.compare-row{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:32px;
  padding:26px 0;
  border-bottom:1px solid var(--line);
  transition:background var(--t);
}
.compare-row:hover{background:rgba(217,160,60,.045);}
.compare-label{
  display:flex;
  align-items:baseline;
  gap:14px;
  font-family:"Noto Serif SC","Songti SC",serif;
  font-weight:600;
  font-size:19px;
  color:var(--ink);
  letter-spacing:-.01em;
}
.compare-idx{
  font-size:13px;
  font-family:"Noto Sans SC",sans-serif;
  letter-spacing:.1em;
  color:var(--gold);
  font-weight:500;
}
.compare-desc{color:var(--text-2);font-size:16px;line-height:1.85;}
.compare-desc strong{color:var(--ink);font-weight:500;}

/* ---------- Note strip ---------- */
.note-strip{
  margin-top:44px;
  border-left:3px solid var(--gold);
  background:var(--bg-2);
  padding:22px 26px;
}
.note-strip h3{font-size:18px;margin-bottom:8px;}
.note-strip p{color:var(--text-2);font-size:15px;margin:0;}

/* ---------- Flow / list rows ---------- */
.row-list{border-top:1px solid var(--line);}
.row-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:20px 0;
  border-bottom:1px solid var(--line);
}
.row-item .row-title{font-size:17px;color:var(--ink);font-weight:500;}
.row-item .row-meta{font-size:13px;color:var(--text-3);white-space:nowrap;letter-spacing:.04em;}

/* ---------- Split with image ---------- */
.split{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:56px;
  align-items:center;
}
.split-media img{
  border-radius:var(--r-img);
  aspect-ratio:16/10;
  object-fit:cover;
  width:100%;
  border:1px solid var(--line);
  transition:transform var(--t);
}
.split-media:hover img{transform:scale(1.02);}
.split-body p{color:var(--text-2);}
.point-list{margin-top:24px;border-top:1px solid var(--line);}
.point-list li{
  display:grid;
  grid-template-columns:120px 1fr;
  gap:20px;
  padding:16px 0;
  border-bottom:1px solid var(--line);
  font-size:15px;
}
.point-list li span:first-child{color:var(--cyan);font-size:13px;letter-spacing:.08em;}
.point-list li span:last-child{color:var(--text-2);}

/* ---------- Dark CTA bar ---------- */
.dark-bar{
  background:var(--ink);
  color:#fff;
  border-radius:var(--r-card);
  padding:48px 52px;
  display:grid;
  grid-template-columns:8fr 4fr;
  gap:36px;
  align-items:center;
  border:1px solid var(--line-dark);
}
.dark-bar h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.3;}
.dark-bar p{color:rgba(255,255,255,.72);margin-top:12px;font-size:15px;}
.dark-bar .bar-action{display:flex;justify-content:flex-end;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:22px 2px;
  font-size:17px;
  color:var(--ink);
  font-weight:500;
  transition:color var(--t);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--gold-h);}
.faq-sign{
  position:relative;
  width:16px;height:16px;
  flex:0 0 auto;
}
.faq-sign::before,.faq-sign::after{
  content:"";
  position:absolute;
  background:var(--gold);
  border-radius:2px;
  transition:transform var(--t),opacity var(--t);
}
.faq-sign::before{top:7px;left:0;width:16px;height:1.6px;}
.faq-sign::after{left:7px;top:0;width:1.6px;height:16px;}
.faq-item[open] .faq-sign::after{transform:rotate(90deg);opacity:0;}
.faq-answer{
  padding:0 40px 24px 2px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.9;
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.74);
  margin-top:0;
  border-top:1px solid var(--line-dark);
}
.site-footer .container{padding-top:72px;padding-bottom:28px;}
.footer-grid{
  display:grid;
  grid-template-columns:4fr 3fr 3fr 3fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{color:#fff;margin-bottom:14px;}
.footer-brand .brand-mark{color:#fff;font-size:18px;}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.6);max-width:22em;}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-family:"Noto Sans SC",sans-serif;
  font-weight:500;
  letter-spacing:.06em;
  margin-bottom:18px;
}
.footer-col ul li{margin-bottom:12px;font-size:14px;color:rgba(255,255,255,.62);}
.footer-col a{color:rgba(255,255,255,.68);}
.footer-col a:hover{color:var(--gold);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  border-top:1px solid var(--line-dark);
  padding-top:22px;
  font-size:13px;
  color:rgba(255,255,255,.5);
}
.back-home{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:40px;
  font-size:14px;
  color:var(--text-2);
}
.back-home:hover{color:var(--gold-h);}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms cubic-bezier(.2,.7,.2,1),transform 520ms cubic-bezier(.2,.7,.2,1);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .nav-wrap{gap:18px;}
  .main-nav{gap:18px;}
  .main-nav a{font-size:14px;}
}
@media (max-width:1023px){
  .main-nav,.nav-cta.desktop-only{display:none;}
  .nav-toggle{display:flex;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-media img{min-height:260px;}
  .split{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .dark-bar{grid-template-columns:1fr;padding:36px 32px;}
  .dark-bar .bar-action{justify-content:flex-start;}
  .section{padding:72px 0;}
}
@media (max-width:767px){
  body{padding-top:64px;}
  .nav-wrap{height:64px;}
  .brand-mark{font-size:17px;}
  .compare-panel-head,.compare-row{grid-template-columns:1fr;gap:10px;}
  .compare-row{padding:22px 0;}
  .compare-label{font-size:17px;}
  .point-list li{grid-template-columns:1fr;gap:4px;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer .container{padding-top:52px;}
  .hero-stats{grid-template-columns:1fr 1fr;gap:24px;}
  .row-item{flex-direction:column;align-items:flex-start;gap:6px;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .hero-title{font-size:32px;}
  .hero-actions{gap:14px;}
  .btn{width:100%;}
  .btn.btn-inline{width:auto;}
  .dark-bar{padding:28px 22px;}
  .hero-stats{grid-template-columns:1fr;}
  .faq-answer{padding-right:0;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --ink:#1B1533; --ink-2:#2A2247; --ink-3:#38305C;
  --gold:#D9A03C; --gold-hover:#C08A2B; --gold-soft:#E6D6B4;
  --cyan:#2F7F86;
  --bg:#FAF7F2; --bg-2:#F1ECE4;
  --text:#1A1626; --text-2:#5C5670; --text-3:#8E8899;
  --line:#E4DED3; --line-dark:rgba(255,255,255,.10);
  --ok:#3F7A5E; --warn:#B4553C;
  --r-card:14px; --r-img:10px; --r-pill:999px; --r-inp:8px;
  --sh-1:0 1px 2px rgba(27,21,51,.06);
  --sh-2:0 18px 40px -20px rgba(27,21,51,.28);
  --t:240ms cubic-bezier(.2,.7,.2,1);
  --serif:"Noto Serif SC","Songti SC","Source Han Serif SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--sans);font-size:16.5px;line-height:1.85;
  color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;letter-spacing:-.02em;margin:0;color:var(--ink)}
p{margin:0 0 1em}
a{color:inherit;text-decoration:none;transition:color var(--t),border-color var(--t),opacity var(--t)}
img{max-width:100%;display:block;height:auto}
button,input,select,textarea{font:inherit;font-family:var(--sans)}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1280px){.container{max-width:1280px}}

/* ---------- 按钮 / 链接 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:var(--r-pill);font-size:15px;font-weight:500;
  letter-spacing:.02em;border:1px solid transparent;cursor:pointer;text-align:center;
  transition:background var(--t),border-color var(--t),transform var(--t),color var(--t);
}
.btn-gold{background:var(--gold);border-color:var(--gold);color:#1B1533}
.btn-gold:hover{background:var(--gold-hover);border-color:var(--gold-hover);transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--gold);color:var(--ink);transform:translateY(-2px)}
.btn-sm{padding:11px 22px;font-size:14px}
.link-u{color:var(--cyan);border-bottom:1px solid rgba(47,127,134,.35);padding-bottom:2px}
.link-u:hover{border-bottom-color:var(--cyan);color:var(--ink)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line);padding-bottom:2px}
.text-link:hover{color:var(--ink);border-bottom-color:var(--gold)}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;width:100%;z-index:60;
  border-bottom:1px solid transparent;transition:background var(--t),border-color var(--t),backdrop-filter var(--t);
}
.site-header.is-scrolled{background:rgba(250,247,242,.93);border-bottom-color:var(--line);backdrop-filter:blur(8px)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:74px}
.brand{display:flex;flex-direction:column;gap:3px;line-height:1.1}
.brand-mark{font-family:var(--serif);font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.brand-sub{font-size:11px;letter-spacing:.24em;color:var(--text-3)}
.main-nav{display:flex;align-items:center;gap:26px}
.main-nav a{position:relative;padding:6px 0;font-size:15px;letter-spacing:.02em;color:var(--text-2)}
.main-nav a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--gold);transition:width var(--t)}
.main-nav a:hover{color:var(--ink)}
.main-nav a:hover::after,.main-nav a.active::after{width:100%}
.main-nav a.active{color:var(--ink)}
.nav-cta{white-space:nowrap}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-inp);
  background:transparent;cursor:pointer;padding:0;position:relative;
}
.nav-toggle span{
  display:block;width:18px;height:1.5px;background:var(--ink);margin:0 auto;
  transition:transform var(--t),opacity var(--t);
}
.nav-toggle span+span{margin-top:4px}
.mobile-drawer{
  position:fixed;inset:0;z-index:80;background:var(--bg);
  transform:translateX(100%);visibility:hidden;opacity:0;
  transition:transform var(--t),opacity var(--t),visibility var(--t);
  display:flex;flex-direction:column;padding:22px 24px 32px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);visibility:visible;opacity:1}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-close{width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-inp);background:transparent;font-size:19px;color:var(--ink);cursor:pointer;line-height:1}
.drawer-nav{display:flex;flex-direction:column;margin-top:6px}
.drawer-nav a{padding:17px 0;font-size:16px;color:var(--text);border-bottom:1px solid var(--line)}
.drawer-nav a.active{color:var(--gold-hover)}
.drawer-foot{margin-top:auto;padding-top:26px}
.drawer-foot .btn{width:100%}

/* ---------- 通栏与板块 ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.25;margin-bottom:14px}
.section-head p{color:var(--text-2);margin:0}
.eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:.16em;color:var(--cyan);
  border:1px solid rgba(47,127,134,.35);border-radius:var(--r-pill);padding:5px 14px;margin-bottom:20px;
}
.gold-rule{width:48px;height:3px;background:var(--gold);margin:22px 0 24px}

/* ---------- 面包屑 ---------- */
.crumb{padding:104px 0 0}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:10px;list-style:none;font-size:12.5px;color:var(--text-3)}
.crumb li{display:flex;align-items:center;gap:10px}
.crumb li+li::before{content:"";width:14px;height:1px;background:var(--line)}
.crumb a:hover{color:var(--ink)}
.crumb [aria-current="page"]{color:var(--text-2)}

/* ---------- Hero ---------- */
.hero{padding:38px 0 84px}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(34px,5vw,56px);line-height:1.15}
.hero-sub{font-size:19px;color:var(--text-2);margin:0 0 14px;max-width:520px}
.hero-lead{color:var(--text-2);max-width:520px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-bottom:42px}
.hero-stats{display:flex;flex-wrap:wrap;gap:44px;padding-top:26px;border-top:1px solid var(--line)}
.stat-num{font-family:var(--serif);font-size:34px;font-weight:600;line-height:1;color:var(--ink);letter-spacing:-.02em}
.stat-num small{font-size:16px;color:var(--gold);margin-left:2px}
.stat-label{display:block;font-size:12.5px;color:var(--text-3);margin-top:8px;letter-spacing:.04em}
.hero-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);background:var(--bg-2)}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform var(--t)}
.hero-media:hover img{transform:scale(1.03)}

/* ---------- 编号大列表 ---------- */
.numbered{list-style:none;counter-reset:none;border-bottom:1px solid var(--line)}
.numbered li{
  display:grid;grid-template-columns:120px 1fr;gap:32px;align-items:baseline;
  padding:30px 0;border-top:1px solid var(--line);
  opacity:0;transform:translateY(12px);transition:opacity var(--t),transform var(--t);
}
.numbered li.is-in{opacity:1;transform:none}
.numbered .num{
  font-family:var(--serif);font-size:clamp(38px,4.4vw,54px);font-weight:600;
  color:var(--gold);line-height:.9;letter-spacing:-.03em;
}
.numbered h3{font-size:20px;margin-bottom:8px}
.numbered p{margin:0;color:var(--text-2);font-size:16px;max-width:760px}
.numbered-foot{display:flex;flex-wrap:wrap;align-items:center;gap:22px;margin-top:34px}

/* ---------- 双栏 5:7 ---------- */
.split{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.split h2{font-size:clamp(24px,3vw,34px);line-height:1.25;margin-bottom:14px}
.split .lead{color:var(--text-2);margin-bottom:24px}
.rows{border-bottom:1px solid var(--line)}
.rows li{display:flex;align-items:baseline;justify-content:space-between;gap:28px;padding:24px 0;border-top:1px solid var(--line);list-style:none}
.rows .row-title{font-family:var(--serif);font-size:19px;font-weight:600;color:var(--ink);flex:0 0 128px}
.rows .row-desc{color:var(--text-2);font-size:15.5px;flex:1}
.tag{
  display:inline-block;font-size:12.5px;line-height:1.6;padding:3px 12px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--text-2);background:#fff;
}
.tag-gold{border-color:rgba(217,160,60,.5);color:#8d6520;background:rgba(217,160,60,.10)}
.tag-cyan{border-color:rgba(47,127,134,.4);color:var(--cyan);background:rgba(47,127,134,.07)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}

/* ---------- 深色区块 ---------- */
.dark{background:linear-gradient(150deg,#1B1533 0%,#2A2247 62%,#38305C 100%);color:#fff;position:relative;overflow:hidden}
.dark::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(circle at 18% 22%,rgba(217,160,60,.16) 0,transparent 42%),
    radial-gradient(circle at 78% 78%,rgba(47,127,134,.18) 0,transparent 46%);
}
.dark .container{position:relative;z-index:1}
.dark h2{color:#fff;font-size:clamp(24px,3vw,34px);line-height:1.25;margin-bottom:16px}
.dark p{color:rgba(255,255,255,.72)}
.dark .gold-rule{margin:22px 0 26px}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;margin-top:52px}
.metric{padding:26px 22px;border:1px solid var(--line-dark);border-radius:var(--r-card);background:rgba(255,255,255,.03)}
.metric .m-num{font-family:var(--serif);font-size:38px;font-weight:600;line-height:1;color:var(--gold);letter-spacing:-.02em}
.metric .m-num small{font-size:15px;margin-left:3px;color:rgba(255,255,255,.7)}
.metric .m-label{display:block;margin-top:12px;font-size:13.5px;color:rgba(255,255,255,.68);line-height:1.6}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-of-type{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:22px 46px 22px 0;font-size:17px;font-weight:500;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:8px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--gold);line-height:1;
}
.faq-item[open] summary::after{content:"−"}
.faq-body{padding:0 0 24px;max-width:780px;font-size:15px;color:var(--text-2)}
.faq-body p:last-child{margin-bottom:0}
.faq-foot{margin-top:34px}

/* ---------- CTA ---------- */
.cta-card{
  background:linear-gradient(135deg,#F1ECE4 0%,#FAF7F2 100%);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:56px 52px;display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center;
}
.cta-card h2{font-size:clamp(23px,2.8vw,32px);line-height:1.3;margin-bottom:14px}
.cta-card p{color:var(--text-2);margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:flex-end}
.back-home{margin-top:40px;font-size:14.5px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:76px 0 0;margin-top:0}
.site-footer .footer-grid{
  display:grid;grid-template-columns:4fr 3fr 3fr 3fr;gap:40px;
  padding-bottom:56px;border-bottom:1px solid var(--line-dark);
}
.site-footer .brand-mark{color:#fff}
.site-footer .footer-brand p{margin:16px 0 0;font-size:14px;color:rgba(255,255,255,.6);max-width:260px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.02em}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:12px;font-size:14.5px}
.site-footer li a{color:rgba(255,255,255,.72)}
.site-footer li a:hover{color:var(--gold)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:26px 0 34px;font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .main-nav{gap:20px}
  .main-nav a{font-size:14.5px}
  .hero-grid{gap:40px}
}
@media (max-width:1023px){
  .main-nav,.nav-cta.desktop-only{display:none}
  .nav-toggle{display:block}
  .section{padding:80px 0}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-media{order:-1}
  .split{grid-template-columns:1fr;gap:36px}
  .cta-card{grid-template-columns:1fr;gap:30px;padding:44px 36px}
  .cta-actions{justify-content:flex-start}
  .metrics{grid-template-columns:repeat(2,1fr);gap:20px}
  .site-footer .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767px){
  .crumb{padding-top:92px}
  .hero{padding:34px 0 64px}
  .section{padding:64px 0}
  .section-tight{padding:56px 0}
  .hero-stats{gap:28px;padding-top:22px}
  .stat-num{font-size:28px}
  .numbered li{grid-template-columns:88px 1fr;gap:20px;padding:24px 0}
  .rows li{flex-direction:column;gap:8px;padding:20px 0}
  .rows .row-title{flex:none}
}
@media (max-width:639px){
  body{font-size:16px}
  .container{padding:0 18px}
  .nav-wrap{min-height:66px}
  .brand-mark{font-size:15.5px}
  .hero h1{font-size:clamp(28px,8vw,36px)}
  .hero-sub{font-size:17px}
  .hero-actions{gap:14px;margin-bottom:32px}
  .hero-actions .btn{width:100%}
  .numbered li{grid-template-columns:1fr;gap:8px}
  .numbered .num{font-size:34px}
  .metrics{grid-template-columns:1fr}
  .cta-card{padding:34px 24px}
  .cta-actions .btn{width:100%}
  .site-footer .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:480px){
  .section-head h2,.split h2,.dark h2{font-size:22px}
  .btn{padding:13px 24px;font-size:14.5px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .numbered li{opacity:1;transform:none}
}

/* roulang page: category5 */
:root{
  --ink:#1B1533;
  --ink-2:#2A2247;
  --ink-3:#38305C;
  --gold:#D9A03C;
  --gold-hover:#C08A2B;
  --gold-dis:#E6D6B4;
  --cyan:#2F7F86;
  --bg:#FAF7F2;
  --bg-2:#F1ECE4;
  --text:#1A1626;
  --text-2:#5C5670;
  --text-3:#8E8899;
  --line:#E4DED3;
  --line-dark:rgba(255,255,255,.10);
  --ok:#3F7A5E;
  --warn:#B4553C;
  --r-card:14px;
  --r-img:10px;
  --r-input:8px;
  --sh-1:0 1px 2px rgba(27,21,51,.06);
  --sh-2:0 18px 40px -20px rgba(27,21,51,.28);
  --dur:240ms;
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding-top:76px;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--cyan);text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--gold-hover)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:600;letter-spacing:-.02em;color:var(--ink)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px;border-radius:3px}

.container{max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container{max-width:1280px}}

/* ---------- 工具类 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:500;letter-spacing:.02em;line-height:1;
  cursor:pointer;transition:transform var(--dur) var(--ease),background-color var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.btn-gold{background:var(--gold);color:#231B08;box-shadow:var(--sh-1)}
.btn-gold:hover{background:var(--gold-hover);color:#231B08;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-gold:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--gold);color:var(--ink);transform:translateY(-2px)}
.link-text{
  display:inline-block;font-size:15px;font-weight:500;color:var(--ink);
  border-bottom:1px solid var(--line);padding-bottom:2px;transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.link-text:hover{border-color:var(--gold);color:var(--gold-hover)}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.22em;color:var(--cyan);
  text-transform:uppercase;margin-bottom:18px;
}
.rule{width:48px;height:3px;background:var(--gold);border-radius:2px;margin:22px 0 26px}
.tag{
  display:inline-block;padding:4px 12px;border-radius:999px;font-size:12.5px;line-height:1.6;
  border:1px solid var(--line);color:var(--text-2);background:rgba(47,127,134,.06);
}
.tag-gold{border-color:rgba(217,160,60,.45);color:#8A6318;background:rgba(217,160,60,.10)}
.section{padding:104px 0}
.section-tight{padding:80px 0}
.sec-head{max-width:760px;margin-bottom:52px}
.sec-head h2{font-size:clamp(24px,3vw,34px);line-height:1.25}
.sec-head p{margin-top:16px;color:var(--text-2);font-size:16px}
.sec-head--split{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:32px}
.bg-2{background:var(--bg-2)}
.bg-ink{background:var(--ink);color:#EDE9F2}
.bg-ink h2,.bg-ink h3{color:#FFFFFF}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:rgba(250,247,242,.94);
  border-bottom:1px solid transparent;
  transition:border-color var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);background:rgba(250,247,242,.98)}
.nav-wrap{display:flex;align-items:center;gap:28px;height:76px}
.brand{display:flex;flex-direction:column;line-height:1.15;text-decoration:none}
.brand-mark{font-family:var(--font-serif);font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.brand-sub{font-size:11.5px;letter-spacing:.26em;color:var(--text-3);margin-top:4px}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav a{
  position:relative;font-size:15px;letter-spacing:.02em;color:var(--text-2);
  padding:6px 0;transition:color var(--dur) var(--ease);
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--gold);
  transition:width var(--dur) var(--ease);
}
.main-nav a:hover{color:var(--ink)}
.main-nav a:hover::after{width:100%}
.main-nav a.active{color:var(--ink);font-weight:500}
.main-nav a.active::after{width:100%}
.nav-cta{margin-left:8px;padding:12px 24px;font-size:14px}
.nav-toggle{
  display:none;width:40px;height:40px;margin-left:auto;border:1px solid var(--line);
  border-radius:8px;background:transparent;cursor:pointer;padding:0;
}
.nav-toggle span{display:block;width:16px;height:1.5px;background:var(--ink);margin:3.5px auto;transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease)}
.nav-toggle.is-active span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle.is-active span:nth-child(2){opacity:0}
.nav-toggle.is-active span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
.nav-open{overflow:hidden}

/* ---------- 内页首屏 ---------- */
.page-hero{
  position:relative;
  background:var(--ink);
  color:#EDE9F2;
  overflow:hidden;
  padding:64px 0 96px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(115deg,rgba(27,21,51,.96) 0%,rgba(27,21,51,.86) 46%,rgba(42,34,71,.72) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;
}
.page-hero .container{position:relative;z-index:2}
.crumb{font-size:12.5px;letter-spacing:.04em;color:rgba(237,233,242,.62);margin-bottom:34px}
.crumb a{color:rgba(237,233,242,.62);border-bottom:1px solid rgba(237,233,242,.22);padding-bottom:2px}
.crumb a:hover{color:var(--gold);border-color:var(--gold)}
.crumb span{margin:0 10px;color:rgba(237,233,242,.34)}
.crumb .current{color:rgba(237,233,242,.9)}
.page-hero h1{
  color:#fff;font-size:clamp(32px,4.6vw,50px);line-height:1.16;letter-spacing:-.02em;max-width:16em;
}
.page-hero .hero-sub{margin-top:22px;font-size:17px;color:rgba(237,233,242,.78);max-width:34em}
.page-hero .rule{margin:26px 0 28px}
.hero-actions{display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin-top:8px}
.page-hero .link-text{color:#F3EFE6;border-color:rgba(237,233,242,.35)}
.page-hero .link-text:hover{color:var(--gold);border-color:var(--gold)}
.hero-visual{position:relative}
.hero-visual img{border-radius:var(--r-card);border:1px solid var(--line-dark);box-shadow:0 24px 60px -30px rgba(0,0,0,.6)}
.hero-stats{display:flex;gap:44px;flex-wrap:wrap;margin-top:52px;padding-top:30px;border-top:1px solid var(--line-dark)}
.hero-stats li{min-width:130px}
.hero-stats .num{display:block;font-family:var(--font-serif);font-size:30px;color:#fff;letter-spacing:-.02em;line-height:1.2}
.hero-stats .lbl{display:block;font-size:12px;color:rgba(237,233,242,.6);margin-top:6px;letter-spacing:.04em}

/* ---------- 信任细条 ---------- */
.trust-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg)}
.trust-inner{display:flex;align-items:center;gap:48px;padding:16px 0;overflow-x:auto;white-space:nowrap}
.trust-inner span{font-size:12.5px;letter-spacing:.14em;color:var(--text-2)}
.trust-inner span::before{content:"";display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--gold);margin-right:10px;vertical-align:middle}

/* ---------- 编号要点列表 ---------- */
.steps-list{border-top:1px solid var(--line)}
.steps-list li{
  display:grid;grid-template-columns:88px 1fr;gap:28px;align-items:baseline;
  padding:30px 0;border-bottom:1px solid var(--line);
  transition:padding-left var(--dur) var(--ease);
}
.steps-list li:hover{padding-left:8px}
.steps-list .idx{font-family:var(--font-serif);font-size:32px;color:var(--gold);letter-spacing:-.02em;line-height:1}
.steps-list h3{font-size:21px;margin-bottom:8px}
.steps-list p{color:var(--text-2);font-size:15.5px;max-width:62ch}

/* ---------- 图文分栏 ---------- */
.split{display:grid;grid-template-columns:1fr;gap:56px;align-items:center}
.split-visual img{border-radius:var(--r-card);box-shadow:var(--sh-2)}
.split-body h2{font-size:clamp(24px,3vw,32px);line-height:1.28}
.split-body p{margin-top:18px;color:var(--text-2)}
.split-body .mini-list{margin-top:26px;border-top:1px solid var(--line)}
.split-body .mini-list li{
  display:flex;justify-content:space-between;gap:20px;align-items:baseline;
  padding:14px 0;border-bottom:1px solid var(--line);font-size:15px;
}
.split-body .mini-list li b{font-weight:500;color:var(--ink)}
.split-body .mini-list li span{color:var(--text-3);font-size:13px;white-space:nowrap}
.split-note{
  margin-top:28px;padding:18px 20px;border-left:2px solid var(--gold);
  background:rgba(217,160,60,.07);border-radius:0 var(--r-input) var(--r-input) 0;
  font-size:14.5px;color:var(--text-2);
}

/* ---------- 对照行 ---------- */
.compare{border-top:1px solid var(--line)}
.compare-row{
  display:grid;grid-template-columns:82px 1fr;gap:26px;align-items:baseline;
  padding:26px 0;border-bottom:1px solid var(--line);
}
.compare-row .case{font-size:13px;letter-spacing:.1em;color:var(--text-3)}
.compare-row h3{font-size:18px;margin-bottom:8px;font-family:var(--font-sans);font-weight:500;letter-spacing:0}
.compare-row p{color:var(--text-2);font-size:15.5px;max-width:66ch}
.compare-row .mark-ok{color:var(--ok);font-size:13px;display:inline-block;margin-top:10px;border-bottom:1px solid rgba(63,122,94,.35)}

/* ---------- 深色横条 ---------- */
.dark-strip{background:var(--ink);color:#EDE9F2;border-radius:var(--r-card);padding:52px 56px;border:1px solid var(--line-dark)}
.dark-strip h2{color:#fff;font-size:clamp(22px,2.6vw,30px)}
.dark-strip p{margin-top:14px;color:rgba(237,233,242,.72);max-width:60ch;font-size:15.5px}
.dark-strip .strip-actions{margin-top:28px;display:flex;gap:22px;align-items:center;flex-wrap:wrap}
.dark-strip .link-text{color:#F3EFE6;border-color:rgba(237,233,242,.35)}
.dark-strip .link-text:hover{color:var(--gold);border-color:var(--gold)}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:24px;align-items:center;
  padding:24px 4px;font-size:17px;font-weight:500;color:var(--ink);
  transition:color var(--dur) var(--ease),padding-left var(--dur) var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--gold-hover);padding-left:10px}
.faq-item .sign{position:relative;width:14px;height:14px;flex:0 0 14px}
.faq-item .sign::before,.faq-item .sign::after{
  content:"";position:absolute;background:var(--gold);transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.faq-item .sign::before{left:0;top:6px;width:14px;height:1.5px}
.faq-item .sign::after{left:6px;top:0;width:1.5px;height:14px}
.faq-item[open] .sign::after{transform:scaleY(0);opacity:0}
.faq-body{padding:0 48px 26px 4px;color:var(--text-2);font-size:15.5px;max-width:78ch}
.faq-body p+p{margin-top:12px}

/* ---------- 表单 ---------- */
.consult{display:grid;grid-template-columns:1fr;gap:48px;align-items:start}
.consult-aside h2{font-size:clamp(24px,3vw,32px);line-height:1.28}
.consult-aside p{margin-top:18px;color:var(--text-2)}
.trust-points{margin-top:30px;border-top:1px solid var(--line)}
.trust-points li{padding:16px 0;border-bottom:1px solid var(--line);font-size:15px;color:var(--text-2)}
.trust-points li b{display:block;color:var(--ink);font-weight:500;margin-bottom:4px;font-size:15.5px}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:40px 40px 32px;box-shadow:var(--sh-1);
}
.field{margin-bottom:22px}
.field label{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:8px;letter-spacing:.02em}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border:1px solid var(--line);border-radius:var(--r-input);
  background:#fff;color:var(--text);font-size:15.5px;line-height:1.5;
  transition:border-color var(--dur) var(--ease),background-color var(--dur) var(--ease);
  appearance:none;box-shadow:none;
}
.field textarea{min-height:120px;resize:vertical}
.field select{
  background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);
  background-position:calc(100% - 20px) 22px,calc(100% - 15px) 22px;
  background-size:5px 5px,5px 5px;background-repeat:no-repeat;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--gold);
}
.field input::placeholder,.field textarea::placeholder{color:#B9B3C0}
.form-card .btn{width:100%;padding:15px 30px;margin-top:6px}
.form-note{margin-top:16px;font-size:12.5px;color:var(--text-3);line-height:1.7}
.form-row-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}

/* ---------- 返回 ---------- */
.back-row{padding:56px 0 72px;text-align:center}
.back-row .link-text{font-size:15px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(237,233,242,.72);padding:76px 0 0;border-top:1px solid var(--line-dark)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:56px}
.footer-brand .brand-mark{color:#fff;font-size:17px}
.footer-brand p{margin-top:18px;font-size:14.5px;max-width:24ch;color:rgba(237,233,242,.62)}
.footer-col h4{font-family:var(--font-sans);font-size:13px;letter-spacing:.16em;color:rgba(237,233,242,.5);font-weight:500;margin-bottom:20px}
.footer-col ul li{margin-bottom:12px;font-size:14.5px;color:rgba(237,233,242,.66)}
.footer-col ul li a{color:rgba(237,233,242,.72);border-bottom:1px solid transparent;padding-bottom:2px;transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.footer-col ul li a:hover{color:var(--gold);border-color:var(--gold)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:22px 0 30px;border-top:1px solid var(--line-dark);font-size:13px;color:rgba(237,233,242,.44);
}

/* ---------- 动效 ---------- */
.js .reveal{opacity:0;transform:translateY(12px)}
.js .reveal.is-in{opacity:1;transform:none;transition:opacity .62s var(--ease),transform .62s var(--ease)}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .js .reveal{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (min-width:1024px){
  .split{grid-template-columns:5fr 7fr;gap:72px}
  .split.reverse{grid-template-columns:7fr 5fr}
  .split.reverse .split-visual{order:2}
  .consult{grid-template-columns:5fr 7fr;gap:64px}
}
@media (max-width:1023px){
  body{padding-top:68px}
  .nav-wrap{height:68px}
  .nav-cta.desktop-only{display:none}
  .nav-toggle{display:block}
  .main-nav{
    position:fixed;top:0;left:0;right:0;bottom:0;z-index:95;
    flex-direction:column;align-items:stretch;gap:0;margin:0;
    background:var(--ink);padding:96px 28px 40px;
    transform:translateX(100%);transition:transform var(--dur) var(--ease);
    overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0)}
  .main-nav a{color:rgba(237,233,242,.85);font-size:17px;padding:20px 0;border-bottom:1px solid var(--line-dark)}
  .main-nav a::after{display:none}
  .main-nav a:hover,.main-nav a.active{color:var(--gold)}
  .nav-toggle{position:relative;z-index:96}
  .site-header.nav-open,.site-header.nav-open .nav-toggle span{background:transparent}
  .page-hero{padding:52px 0 72px}
  .section{padding:76px 0}
  .section-tight{padding:60px 0}
  .dark-strip{padding:40px 32px}
  .sec-head{margin-bottom:40px}
  .sec-head--split{flex-direction:column;align-items:flex-start;gap:18px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .hero-stats{gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .page-hero h1{font-size:clamp(28px,7.4vw,36px)}
  .page-hero .hero-sub{font-size:16px}
  .hero-visual{margin-top:36px}
  .hero-stats{gap:22px;margin-top:36px}
  .hero-stats li{min-width:46%}
  .steps-list li{grid-template-columns:52px 1fr;gap:16px;padding:24px 0}
  .steps-list .idx{font-size:24px}
  .compare-row{grid-template-columns:1fr;gap:10px}
  .faq-item summary{font-size:16px;padding:20px 2px}
  .faq-body{padding-right:8px;font-size:15px}
  .form-card{padding:28px 22px 24px}
  .form-row-2{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;gap:8px}
  .split{gap:34px}
  .split-body .mini-list li{flex-direction:column;gap:4px}
}
@media (max-width:480px){
  .btn{width:100%;padding:13px 22px}
  .hero-actions{gap:14px}
  .hero-actions .link-text{width:auto}
  .trust-inner{gap:28px}
  .dark-strip{padding:32px 22px;border-radius:12px}
  .dark-strip .strip-actions{flex-direction:column;align-items:stretch;gap:14px}
}

/* roulang page: category4 */
:root{
  --ink:#1B1533;
  --ink-2:#2A2247;
  --ink-3:#38305C;
  --gold:#D9A03C;
  --gold-dark:#C08A2B;
  --gold-soft:#E6D6B4;
  --teal:#2F7F86;
  --paper:#FAF7F2;
  --paper-2:#F1ECE4;
  --text:#1A1626;
  --text-2:#5C5670;
  --text-3:#8E8899;
  --line:#E4DED3;
  --line-dark:rgba(255,255,255,.10);
  --ok:#3F7A5E;
  --warn:#B4553C;
  --r-card:14px;
  --r-img:10px;
  --r-pill:999px;
  --r-input:8px;
  --sh-1:0 1px 2px rgba(27,21,51,.06);
  --sh-2:0 18px 40px -20px rgba(27,21,51,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
  --dur:240ms;
  --font-serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --font-sans:"Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --wrap:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--teal);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--gold-dark);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:700;color:var(--text);letter-spacing:-.02em;line-height:1.25;}
h1{font-size:clamp(34px,5vw,56px);line-height:1.15;}
h2{font-size:clamp(24px,3vw,34px);line-height:1.25;}
h3{font-size:21px;letter-spacing:0;}
p{color:var(--text-2);}

/* Foundation 默认样式覆盖 */
body,button,input,select,textarea{font-family:var(--font-sans);}
button,.button{
  font-family:var(--font-sans);
  background:var(--gold);
  border:none;
  border-radius:var(--r-pill);
  color:var(--ink);
  transition:background var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
button:hover,.button:hover{background:var(--gold-dark);color:#fff;}
input[type="text"],input[type="tel"],input[type="email"],select,textarea{
  border:1px solid var(--line);
  border-radius:var(--r-input);
  background:#fff;
  box-shadow:none;
  font-size:15px;
  height:auto;
  padding:12px 14px;
  color:var(--text);
  transition:border-color var(--dur) var(--ease);
}
input:focus,select:focus,textarea:focus{
  outline:none;
  border-color:var(--gold);
  box-shadow:none;
}
label{font-size:14px;color:var(--text-2);font-weight:500;}
table{border-collapse:collapse;}

/* 容器 */
.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}
.section{padding:104px 0;}
.section--tight{padding:72px 0;}
.section--paper{background:var(--paper-2);}
.section--ink{background:var(--ink);color:#fff;}

/* 通用文字类 */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;letter-spacing:.14em;color:var(--text-3);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:28px;height:1px;background:var(--gold);display:inline-block;}
.section-head{margin-bottom:52px;max-width:720px;}
.section-head h2{margin-top:14px;}
.section-head p{margin-top:16px;font-size:16.5px;}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;max-width:none;}
.gold-rule{width:48px;height:3px;background:var(--gold);border-radius:2px;display:block;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 30px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:500;letter-spacing:.02em;
  border:1px solid transparent;
  cursor:pointer;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.btn-gold{background:var(--gold);color:var(--ink);box-shadow:var(--sh-1);}
.btn-gold:hover{background:var(--gold-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text);}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold-dark);transform:translateY(-2px);}
.btn-ghost--light{background:transparent;border-color:var(--line-dark);color:#fff;}
.btn-ghost--light:hover{border-color:var(--gold);color:var(--gold);}
.link-underline{
  font-size:15px;color:var(--teal);
  border-bottom:1px solid rgba(47,127,134,.35);
  padding-bottom:2px;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.link-underline:hover{color:var(--gold-dark);border-color:var(--gold);}
.text-cta{
  display:inline-block;font-size:15px;color:var(--gold-dark);
  border-bottom:1px solid rgba(217,160,60,.4);padding-bottom:2px;
}
.text-cta:hover{color:var(--gold);border-color:var(--gold);}

/* 徽章 / 标签 */
.badge{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;line-height:1.6;letter-spacing:.04em;
  border:1px solid var(--line);color:var(--text-2);background:transparent;
}
.badge--gold{border-color:rgba(217,160,60,.5);color:var(--gold-dark);background:rgba(217,160,60,.10);}
.badge--teal{border-color:rgba(47,127,134,.4);color:var(--teal);background:rgba(47,127,134,.08);}
.badge--ink{background:var(--ink);color:#fff;border-color:var(--ink);}

/* 头部导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:transparent;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(250,247,242,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(8px);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:28px;height:78px;}
.brand{display:flex;flex-direction:column;gap:2px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{font-family:var(--font-serif);font-size:18px;font-weight:700;letter-spacing:.01em;line-height:1.2;}
.brand-sub{font-size:11.5px;letter-spacing:.24em;color:var(--text-3);}
.main-nav{display:flex;align-items:center;gap:26px;}
.main-nav a{
  position:relative;font-size:15px;letter-spacing:.02em;color:var(--text-2);
  padding:6px 0;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--gold);transition:width var(--dur) var(--ease);
}
.main-nav a:hover{color:var(--text);}
.main-nav a:hover::after,.main-nav a.active::after{width:100%;}
.main-nav a.active{color:var(--text);}
.nav-cta{padding:10px 22px;font-size:14px;}
.nav-toggle{
  display:none;width:40px;height:40px;padding:0;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-input);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--text);}
.nav-toggle:hover{background:transparent;border-color:var(--gold);}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:220;
  background:var(--paper);
  transform:translateX(100%);
  transition:transform 300ms var(--ease);
  display:flex;flex-direction:column;
  padding:20px 24px 32px;
  overflow-y:auto;
  visibility:hidden;
}
.drawer.open{transform:translateX(0);visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:38px;height:38px;background:transparent;border:1px solid var(--line);
  border-radius:var(--r-input);color:var(--text);font-size:18px;line-height:1;cursor:pointer;
}
.drawer-close:hover{background:transparent;border-color:var(--gold);color:var(--gold-dark);}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px;}
.drawer-nav a{
  padding:16px 0;font-size:16px;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--gold-dark);}
.drawer-cta{margin-top:28px;width:100%;}

/* Hero */
.hero{
  position:relative;
  padding:150px 0 88px;
  background:var(--paper);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(217,160,60,.14),transparent 68%);
  pointer-events:none;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;
}
.crumb{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--text-3);margin-bottom:26px;}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--gold-dark);}
.crumb span.sep{color:var(--line);}
.crumb .current{color:var(--text-2);}
.hero h1{margin-top:18px;}
.hero-sub{margin-top:22px;font-size:17px;color:var(--text-2);max-width:520px;}
.hero-actions{display:flex;align-items:center;gap:22px;margin-top:34px;flex-wrap:wrap;}
.hero-stats{display:flex;gap:52px;margin-top:52px;padding-top:28px;border-top:1px solid var(--line);flex-wrap:wrap;}
.hero-stats .num{
  font-family:var(--font-serif);font-size:34px;line-height:1.1;
  color:var(--ink);letter-spacing:-.02em;
}
.hero-stats .num em{font-style:normal;font-size:16px;color:var(--text-3);margin-left:4px;}
.hero-stats .cap{font-size:12.5px;color:var(--text-3);margin-top:6px;letter-spacing:.04em;}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
}
.hero-figure::before{
  content:"";position:absolute;inset:-14px;border:1px solid var(--line);
  border-radius:calc(var(--r-img) + 6px);pointer-events:none;
}
.hero-figure .fig-note{
  position:absolute;left:18px;bottom:18px;
  background:rgba(27,21,51,.86);color:#fff;
  font-size:12.5px;letter-spacing:.06em;
  padding:7px 16px;border-radius:var(--r-pill);
}
.img-fallback{background:var(--paper-2);}

/* 信任细条 */
.trust-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--paper);}
.trust-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:56px;padding:8px 0;overflow-x:auto;
}
.trust-inner span{
  font-size:12.5px;letter-spacing:.12em;color:var(--text-3);white-space:nowrap;
}

/* 错位卡片网格 */
.offset-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:26px;
}
.offset-card{
  position:relative;
  display:flex;flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.offset-card::before{
  content:"";position:absolute;left:0;top:0;height:2px;width:0;
  background:var(--gold);transition:width var(--dur) var(--ease);z-index:3;
}
.offset-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.offset-card:hover::before{width:100%;}
.offset-card .card-media{
  position:relative;overflow:hidden;background:var(--paper-2);
}
.offset-card .card-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform 320ms var(--ease);
}
.offset-card:hover .card-media img{transform:scale(1.03);}
.offset-card .card-body{padding:24px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.offset-card h3{font-size:20px;}
.offset-card p{font-size:15px;color:var(--text-2);}
.card-meta{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--text-3);
}
.card-tags{display:flex;gap:8px;flex-wrap:wrap;}

/* 首卡跨两列 */
.offset-card--lead{grid-column:span 2;grid-row:span 2;}
.offset-card--lead .card-media{height:100%;min-height:280px;}
.offset-card--lead .card-media img{position:absolute;inset:0;width:100%;height:100%;}
.offset-card--lead .card-overlay{
  position:absolute;inset:auto 0 0 0;
  padding:28px;
  background:linear-gradient(to top,rgba(27,21,51,.92) 12%,rgba(27,21,51,.55) 58%,transparent 100%);
  color:#fff;
}
.offset-card--lead .card-overlay h3{color:#fff;font-size:26px;}
.offset-card--lead .card-overlay p{color:rgba(255,255,255,.78);font-size:15px;margin-top:10px;max-width:520px;}
.offset-card--lead .card-body{padding:24px;border-top:1px solid var(--line);}
.offset-card--lead .card-meta{border-top:none;padding-top:0;}

/* 宽卡（横向） */
.offset-card--wide{grid-column:span 2;flex-direction:row;}
.offset-card--wide .card-media{width:44%;min-height:220px;}
.offset-card--wide .card-body{width:56%;}

/* 流程 */
.steps-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid var(--line);}
.step{
  padding:34px 26px 30px 0;
  border-right:1px solid var(--line);
  transition:background var(--dur) var(--ease);
}
.step:last-child{border-right:none;padding-right:0;}
.step-num{
  font-family:var(--font-serif);font-size:30px;color:var(--gold);
  line-height:1;letter-spacing:-.02em;
}
.step h3{font-size:18px;margin-top:16px;}
.step p{font-size:14.5px;margin-top:10px;}

/* 深色倒计时横条 */
.promo-bar{background:var(--ink);color:#fff;padding:64px 0;}
.promo-inner{display:flex;align-items:center;justify-content:space-between;gap:48px;flex-wrap:wrap;}
.promo-text h2{color:#fff;font-size:clamp(24px,3vw,32px);}
.promo-text p{color:rgba(255,255,255,.72);margin-top:14px;max-width:520px;font-size:15.5px;}
.countdown{display:flex;gap:14px;}
.cd-cell{
  min-width:76px;padding:14px 10px;
  border:1px solid var(--line-dark);border-radius:var(--r-input);
  text-align:center;background:var(--ink-2);
}
.cd-cell .val{
  font-family:var(--mono);font-size:30px;line-height:1.1;color:#fff;letter-spacing:.02em;
  display:block;
}
.cd-cell .lbl{display:block;font-size:12px;color:rgba(255,255,255,.55);margin-top:6px;letter-spacing:.1em;}

/* 对照列表 */
.duo-list{border-top:1px solid var(--line);}
.duo-row{
  display:grid;grid-template-columns:240px 1fr;gap:32px;
  padding:24px 0;border-bottom:1px solid var(--line);
  transition:background var(--dur) var(--ease);
}
.duo-row:hover{background:rgba(217,160,60,.05);}
.duo-row .duo-label{font-family:var(--font-serif);font-size:18px;color:var(--ink);}
.duo-row .duo-label em{display:block;font-style:normal;font-family:var(--font-sans);font-size:12.5px;color:var(--text-3);margin-top:6px;letter-spacing:.06em;}
.duo-row .duo-desc{font-size:15px;color:var(--text-2);}
.duo-row .duo-desc strong{color:var(--ink);font-weight:500;}

/* FAQ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:transparent;border:none;border-radius:0;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:24px 0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:500;color:var(--text);font-family:var(--font-sans);
  transition:color var(--dur) var(--ease);
}
.faq-q:hover{background:transparent;color:var(--gold-dark);}
.faq-sign{
  flex:0 0 auto;width:18px;height:18px;position:relative;
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:0;top:50%;width:18px;height:1.5px;background:var(--gold);
  transition:transform var(--dur) var(--ease);
}
.faq-sign::after{transform:rotate(90deg);}
.faq-item.open .faq-sign::after{transform:rotate(0deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 300ms var(--ease),padding var(--dur) var(--ease);
}
.faq-item.open .faq-a{max-height:420px;padding-bottom:26px;}
.faq-a p{font-size:15px;color:var(--text-2);max-width:760px;}

/* CTA 区块 */
.cta-block{
  background:var(--ink);
  color:#fff;
  border-radius:var(--r-card);
  padding:60px 56px;
  display:grid;grid-template-columns:1.2fr .8fr;gap:44px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-block::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:340px;height:340px;
  background:radial-gradient(circle,rgba(217,160,60,.22),transparent 70%);
}
.cta-block h2{color:#fff;}
.cta-block p{color:rgba(255,255,255,.72);margin-top:16px;font-size:15.5px;max-width:560px;}
.cta-actions{display:flex;flex-direction:column;align-items:flex-start;gap:18px;position:relative;z-index:2;}
.cta-note{font-size:12.5px;color:rgba(255,255,255,.5);}

/* 返回 */
.back-row{padding:56px 0 0;text-align:center;}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:78px 0 30px;margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:44px;
  padding-bottom:46px;border-bottom:1px solid var(--line-dark);
}
.footer-brand .brand-mark{color:#fff;font-size:17px;}
.footer-brand p{margin-top:16px;font-size:14px;color:rgba(255,255,255,.6);max-width:280px;}
.footer-col h4{
  font-family:var(--font-sans);font-size:14px;font-weight:500;
  color:#fff;letter-spacing:.06em;margin-bottom:18px;
}
.footer-col ul li{margin-bottom:12px;font-size:14px;}
.footer-col ul li a{color:rgba(255,255,255,.66);}
.footer-col ul li a:hover{color:var(--gold);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-top:24px;font-size:13px;color:rgba(255,255,255,.42);flex-wrap:wrap;
}

/* 动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 480ms var(--ease),transform 480ms var(--ease);}
.reveal.in{opacity:1;transform:translateY(0);}

/* 焦点可见 */
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--gold);outline-offset:2px;border-radius:4px;
}

/* 响应式 */
@media (max-width:1199px){
  .container{max-width:1080px;}
  .main-nav{gap:20px;}
  .main-nav a{font-size:14px;}
  .section{padding:88px 0;}
}
@media (max-width:1023px){
  .main-nav,.nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .hero{padding:126px 0 68px;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-sub{max-width:none;}
  .hero-figure::before{inset:-10px;}
  .offset-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .offset-card--lead{grid-column:span 2;grid-row:auto;}
  .offset-card--wide{grid-column:span 2;flex-direction:column;}
  .offset-card--wide .card-media,.offset-card--wide .card-body{width:100%;}
  .offset-card--wide .card-media{min-height:200px;}
  .steps-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step{padding:30px 22px 26px 0;border-bottom:1px solid var(--line);}
  .step:nth-child(2n){border-right:none;padding-right:0;}
  .section{padding:76px 0;}
  .cta-block{padding:48px 36px;grid-template-columns:1fr;gap:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .section{padding:64px 0;}
  .hero{padding:112px 0 56px;}
  .hero-actions{gap:16px;}
  .hero-actions .btn{width:100%;}
  .hero-actions .link-underline{width:100%;text-align:center;}
  .hero-stats{gap:32px;margin-top:38px;}
  .duo-row{grid-template-columns:1fr;gap:10px;}
  .promo-inner{flex-direction:column;align-items:flex-start;}
  .promo-bar{padding:52px 0;}
  .footer-grid{grid-template-columns:1fr;}
  .section-head--row{flex-direction:column;align-items:flex-start;gap:16px;}
}
@media (max-width:639px){
  .container{padding:0 18px;}
  .offset-grid{grid-template-columns:1fr;}
  .offset-card--lead,.offset-card--wide{grid-column:span 1;}
  .offset-card--lead .card-media{min-height:220px;}
  .steps-grid{grid-template-columns:1fr;}
  .step{border-right:none;padding-right:0;}
  .countdown{width:100%;gap:10px;}
  .cd-cell{flex:1;min-width:0;}
  .cd-cell .val{font-size:24px;}
  .cta-block{padding:38px 22px;border-radius:var(--r-card);}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:480px){
  .brand-mark{font-size:16px;}
  .hero h1{font-size:30px;}
  .hero-stats .num{font-size:28px;}
  .offset-card .card-body{padding:20px 18px 22px;}
  .offset-card--lead .card-overlay{padding:20px;}
  .offset-card--lead .card-overlay h3{font-size:21px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
  .offset-card:hover{transform:none;}
  .btn:hover{transform:none;}
}