/* roulang page: index */
:root{
  --c-green:#0F3D3A;
  --c-green-2:#1C5C56;
  --c-green-3:#2E7A72;
  --c-brass:#C8A24A;
  --c-bg:#F7F5F0;
  --c-bg-alt:#EFEBE3;
  --c-dark:#12211F;
  --c-text:#22201D;
  --c-muted:#6B665E;
  --c-line:#DCD6CA;
  --c-white:#FFFFFF;
  --c-error:#B4432F;
  --radius:4px;
  --sh-1:0 1px 2px rgba(18,33,31,.06);
  --sh-2:0 8px 24px rgba(18,33,31,.10);
  --nav-w:92px;
  --serif:"Noto Serif SC","Source Han Serif SC","PingFang SC",serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding-left:var(--nav-w);
  font-family:var(--sans);font-size:16.5px;line-height:1.85;
  color:var(--c-text);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;line-height:1.3;margin:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
time{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--c-brass);outline-offset:2px;border-radius:2px}
::selection{background:rgba(200,162,74,.32)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;left:0;top:0;bottom:0;width:var(--nav-w);
  background:var(--c-dark);z-index:60;
  display:flex;flex-direction:column;align-items:center;
  padding:22px 0 18px;border-right:1px solid rgba(255,255,255,.08);
}
.side-brand{display:flex;flex-direction:column;align-items:center;gap:10px;padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.12);width:64px}
.brand-mark{
  width:34px;height:34px;border-radius:6px;background:var(--c-green-2);
  display:flex;align-items:center;justify-content:center;flex:none;
}
.brand-mark svg{width:20px;height:20px;stroke:var(--c-brass);fill:none;stroke-width:2.4;stroke-linecap:round}
.brand-text{
  writing-mode:vertical-rl;text-orientation:upright;
  font-family:var(--serif);font-size:13px;letter-spacing:.24em;
  color:#E8EFED;line-height:1;max-height:190px;
}
.side-menu{display:flex;flex-direction:column;align-items:center;gap:2px;margin-top:22px;width:100%}
.nav-item{
  position:relative;display:flex;flex-direction:column;align-items:center;gap:7px;
  width:100%;padding:13px 6px;color:#93A8A4;transition:color .24s ease,background .24s ease;
}
.nav-item .nav-icon{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.nav-item .nav-label{font-size:12px;line-height:1.35;text-align:center;letter-spacing:.04em;max-width:60px}
.nav-item:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-item.active{color:#fff}
.nav-item.active::after{content:"";position:absolute;right:-1px;top:10px;bottom:10px;width:3px;background:var(--c-brass);border-radius:2px}
.nav-tip{
  position:absolute;left:100%;top:50%;transform:translateY(-50%) translateX(-4px);
  background:var(--c-green);color:#fff;font-size:12px;line-height:1;padding:7px 10px;
  border-radius:var(--radius);white-space:nowrap;opacity:0;visibility:hidden;
  transition:opacity .24s ease,transform .24s ease,visibility .24s;pointer-events:none;z-index:70;
}
.nav-item:hover .nav-tip{opacity:1;visibility:visible;transform:translateY(-50%) translateX(10px)}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;align-items:center;padding-top:16px;border-top:1px solid rgba(255,255,255,.12);width:64px}
.icon-btn{
  width:38px;height:38px;border-radius:var(--radius);border:1px solid rgba(255,255,255,.16);
  background:transparent;display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background .24s ease,border-color .24s ease;
}
.icon-btn svg{width:18px;height:18px;stroke:#C6D4D1;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.icon-btn:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.32)}

/* ---------- 移动端顶栏与抽屉 ---------- */
.topbar{
  display:none;position:fixed;left:0;right:0;top:0;height:60px;z-index:70;
  background:var(--c-dark);align-items:center;justify-content:space-between;padding:0 16px;
}
.topbar-brand{display:flex;align-items:center;gap:10px;color:#EFF4F2;font-family:var(--serif);font-size:15px;letter-spacing:.08em}
.topbar-brand .brand-mark{width:28px;height:28px}
.hamburger{
  width:42px;height:38px;border:1px solid rgba(255,255,255,.18);border-radius:var(--radius);
  background:transparent;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.hamburger span{display:block;width:18px;height:2px;background:#E4EBE9;transition:transform .24s ease,opacity .24s ease}
.hamburger.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.drawer{
  position:fixed;left:0;right:0;top:60px;bottom:0;background:var(--c-dark);z-index:65;
  padding:8px 0 40px;overflow-y:auto;opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s;
}
.drawer.open{opacity:1;visibility:visible;transform:none}
.drawer a{
  display:flex;align-items:center;justify-content:space-between;height:56px;padding:0 22px;
  color:#E4EBE9;font-size:16px;border-bottom:1px solid rgba(220,214,202,.18);
}
.drawer a span.arw{color:var(--c-brass);font-size:13px}
.drawer a.active{color:var(--c-brass)}
.drawer .drawer-note{padding:20px 22px;color:#8FA3A0;font-size:13px;line-height:1.8}

/* ---------- 通用 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--c-bg-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:44px}
.sec-eyebrow{font-size:12px;letter-spacing:.2em;color:var(--c-muted);text-transform:uppercase;margin-bottom:10px}
.sec-title{position:relative;padding-left:18px;font-size:clamp(24px,2.4vw,34px)}
.sec-title::before{content:"";position:absolute;left:0;top:.2em;width:6px;height:.78em;background:var(--c-brass);border-radius:2px}
.sec-desc{margin-top:14px;color:var(--c-muted);font-size:15.5px;max-width:660px}
.section-link{font-size:14px;color:var(--c-green);white-space:nowrap;position:relative;flex:none}
.section-link::after{content:"";position:absolute;left:0;bottom:-3px;width:100%;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .24s ease}
.section-link:hover::after{transform:scaleX(1)}

.btn{
  display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:var(--radius);
  font-size:15px;font-weight:500;line-height:1;cursor:pointer;border:1px solid transparent;
  transition:background .24s ease,border-color .24s ease,color .24s ease,transform .24s ease;
}
.btn-primary{background:var(--c-green);border-color:var(--c-green);color:#fff}
.btn-primary:hover{background:var(--c-green-2);border-color:var(--c-green-2);transform:translateX(2px)}
.btn-ghost{background:transparent;border-color:var(--c-green);color:var(--c-green)}
.btn-ghost:hover{background:rgba(15,61,58,.08)}
.btn-brass{background:transparent;border-color:var(--c-brass);color:var(--c-brass)}
.btn-brass:hover{background:rgba(200,162,74,.14)}

.badge{
  display:inline-block;border:1px solid var(--c-brass);color:var(--c-green);
  font-size:12px;letter-spacing:.08em;padding:3px 11px;border-radius:999px;line-height:1.6;
}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--c-bg-alt);padding:88px 0 84px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;opacity:.14;
}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:52px;align-items:center}
.hero-eyebrow{font-size:12px;letter-spacing:.22em;color:var(--c-muted);margin-bottom:18px}
.hero-title{
  position:relative;padding-left:20px;
  font-size:clamp(30px,3.6vw,50px);line-height:1.28;
}
.hero-title::before{content:"";position:absolute;left:0;top:.16em;width:6px;height:.8em;background:var(--c-brass);border-radius:2px}
.hero-sub{margin-top:22px;font-size:17px;color:var(--c-muted);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:34px;font-size:13px;color:var(--c-muted)}
.hero-trust li{position:relative;padding-left:14px}
.hero-trust li::before{content:"";position:absolute;left:0;top:.72em;width:5px;height:5px;border-radius:50%;background:var(--c-brass)}
.hero-media{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--sh-2);aspect-ratio:4/5;background:var(--c-green)}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,61,58,.18) 0%,rgba(15,61,58,.30) 55%,rgba(15,61,58,.58) 100%);
}
.media-tag{
  position:absolute;left:20px;bottom:20px;z-index:2;color:#F2F6F4;font-size:13px;
  letter-spacing:.06em;border-left:3px solid var(--c-brass);padding-left:10px;line-height:1.6;
}

/* ---------- 双栏理念 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.split-media{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:16/11;background:var(--c-bg-alt);box-shadow:var(--sh-1)}
.split-media img{width:100%;height:100%;object-fit:cover}
.split p + p{margin-top:18px}
.split p{color:var(--c-muted)}
.feature-list{margin-top:28px;display:grid;gap:14px}
.feature-list li{position:relative;padding-left:26px;font-size:15.5px;color:var(--c-text)}
.feature-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:10px;height:2px;background:var(--c-brass);border-radius:2px;
}

/* ---------- 卡片 ---------- */
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--c-white);border:1px solid var(--c-line);border-radius:var(--radius);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .24s ease,box-shadow .24s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.card-media{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--c-bg-alt)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1}
.card-title{font-size:20px;line-height:1.45;margin-top:14px}
.card-title a{position:relative}
.card-title a::after{content:"";position:absolute;left:0;bottom:-3px;width:100%;height:1px;background:var(--c-green);transform:scaleX(0);transform-origin:left;transition:transform .24s ease}
.card-title a:hover::after{transform:scaleX(1)}
.card-text{margin-top:12px;font-size:14.5px;color:var(--c-muted);line-height:1.85;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-muted)}
.read-more{color:var(--c-green);font-size:13.5px;position:relative;flex:none}
.read-more::after{content:"";position:absolute;left:0;bottom:-2px;width:100%;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .24s ease}
.read-more:hover::after{transform:scaleX(1)}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;background:var(--c-bg-alt);
  border:1px dashed var(--c-line);border-radius:var(--radius);
}
.empty-state p{color:var(--c-muted);font-size:15.5px;margin-bottom:20px}

/* ---------- 栏目导航条 ---------- */
.cat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cat-link{
  display:block;background:var(--c-white);border:1px solid var(--c-line);border-radius:var(--radius);
  padding:26px 22px;box-shadow:var(--sh-1);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.cat-link:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-brass)}
.cat-num{font-family:var(--serif);font-size:22px;color:var(--c-brass);line-height:1}
.cat-name{font-family:var(--serif);font-size:19px;margin-top:14px;line-height:1.45}
.cat-desc{margin-top:10px;font-size:14px;color:var(--c-muted);line-height:1.8}
.cat-more{margin-top:16px;font-size:13px;color:var(--c-green);display:inline-block}

/* ---------- 数据条与短评 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;padding:36px 0;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.stat-num{font-family:var(--serif);font-size:clamp(28px,3vw,42px);color:var(--c-brass);line-height:1.1}
.stat-label{margin-top:8px;font-size:14px;color:var(--c-muted)}
.quotes{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px}
.quote{background:var(--c-white);border:1px solid var(--c-line);border-radius:var(--radius);padding:24px 22px;box-shadow:var(--sh-1)}
.quote-text{font-size:15px;line-height:1.85}
.quote-src{margin-top:14px;padding-top:14px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-muted)}

/* ---------- FAQ ---------- */
.faq{max-width:880px;border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;display:flex;align-items:center;gap:16px;
  min-height:56px;padding:16px 44px 16px 0;font-size:17px;font-family:var(--serif);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-num{font-family:var(--serif);color:var(--c-brass);font-size:15px;flex:none;letter-spacing:.04em}
.faq-item summary::after{
  content:"";position:absolute;right:6px;top:50%;width:14px;height:14px;margin-top:-7px;
  background:
    linear-gradient(var(--c-brass),var(--c-brass)) center/14px 2px no-repeat,
    linear-gradient(var(--c-brass),var(--c-brass)) center/2px 14px no-repeat;
  transition:transform .24s ease;
}
.faq-item[open] summary::after{transform:rotate(90deg)}
.faq-a{padding:0 44px 24px 37px;color:var(--c-muted);font-size:15.5px;line-height:1.9}

/* ---------- CTA / 订阅 ---------- */
.cta-band{background:var(--c-dark);color:#E9EFED;padding:88px 0}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.cta-band .sec-eyebrow{color:#8FA3A0}
.cta-band .sec-title{color:#fff}
.cta-band p.cta-desc{margin-top:18px;color:#B8C6C3;font-size:15.5px;max-width:520px}
.sub-form{display:flex;gap:12px;margin-top:26px}
.sub-form input{
  flex:1;min-width:0;height:50px;padding:0 16px;border-radius:var(--radius);
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.06);color:#fff;font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.sub-form input::placeholder{color:#8FA3A0}
.sub-form input:focus{outline:none;border-color:var(--c-brass);box-shadow:0 0 0 2px rgba(200,162,74,.24)}
.sub-form .btn{height:50px;padding:0 24px;justify-content:center}
.form-note{margin-top:12px;font-size:13px;color:#8FA3A0}
.form-msg{margin-top:10px;font-size:13.5px;min-height:20px}
.form-msg.ok{color:#8FCBB8}
.form-msg.err{color:#E59A88}

/* ---------- 页脚 ---------- */
.footer{background:var(--c-dark);color:#B8C6C3;padding:64px 0 0;border-top:1px solid rgba(255,255,255,.08)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:0}
.foot-col{padding:0 28px;border-left:1px solid rgba(255,255,255,.12)}
.foot-col:first-child{border-left:0;padding-left:0}
.foot-brand{display:flex;align-items:center;gap:12px;color:#EFF4F2;font-family:var(--serif);font-size:17px;letter-spacing:.06em}
.foot-brand .brand-mark{width:32px;height:32px}
.foot-text{margin-top:18px;font-size:14px;line-height:1.9;color:#93A8A4;max-width:320px}
.foot-title{font-size:14px;color:#EFF4F2;letter-spacing:.12em;font-family:var(--serif);margin-bottom:16px}
.foot-links li + li{margin-top:10px}
.foot-links a{font-size:14px;color:#93A8A4;position:relative;transition:color .24s ease}
.foot-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:100%;height:1px;background:var(--c-brass);transform:scaleX(0);transform-origin:left;transition:transform .24s ease}
.foot-links a:hover{color:var(--c-brass)}
.foot-links a:hover::after{transform:scaleX(1)}
.foot-info li{font-size:14px;color:#93A8A4;line-height:1.9}
.foot-info li + li{margin-top:8px}
.foot-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 26px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#7E918E;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--nav-w:76px}
  .nav-item .nav-label{display:none}
  .nav-item{padding:16px 6px}
  .brand-text{font-size:12px;letter-spacing:.18em;max-height:150px}
  .hero-grid{gap:40px}
  .split{gap:44px}
}
@media (max-width:1023px){
  body{padding-left:0;padding-top:60px}
  .side-nav{display:none}
  .topbar{display:flex}
  .container{padding:0 22px}
  .section{padding:64px 0}
  .hero{padding:56px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{aspect-ratio:16/10}
  .split{grid-template-columns:1fr;gap:32px}
  .cards-3{grid-template-columns:repeat(2,1fr)}
  .cat-strip{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr);gap:26px}
  .quotes{grid-template-columns:repeat(2,1fr)}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px 0}
  .foot-col{padding:0 22px}
  .foot-col:nth-child(odd){border-left:0;padding-left:0}
}
@media (max-width:767px){
  body{font-size:16px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px}
  .cards-3{grid-template-columns:1fr}
  .cat-strip{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .quotes{grid-template-columns:1fr}
  .hero-title{font-size:30px;padding-left:16px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{width:100%;justify-content:center}
  .faq-a{padding:0 8px 22px 31px}
  .faq-item summary{font-size:16px;padding-right:38px}
  .sub-form{flex-direction:column}
  .sub-form .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:0}
  .foot-col{border-left:0;padding:26px 0;border-top:1px solid rgba(255,255,255,.12)}
  .foot-col:first-child{border-top:0;padding-top:0}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .stats{grid-template-columns:1fr}
  .hero-trust{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .reveal{opacity:1 !important;transform:none !important}
}

/* roulang page: category1 */
:root{
  --brand:#0F3D3A;
  --brand-2:#1C5C56;
  --brand-3:#2E7A72;
  --brass:#C8A24A;
  --bg:#F7F5F0;
  --bg-alt:#EFEBE3;
  --ink:#22201D;
  --ink-2:#6B665E;
  --line:#DCD6CA;
  --dark:#12211F;
  --danger:#B4432F;
  --radius:4px;
  --shadow-1:0 1px 2px rgba(18,33,31,.06);
  --shadow-2:0 8px 24px rgba(18,33,31,.10);
  --serif:"Noto Serif SC","Source Han Serif SC","PingFang SC",serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --rail:92px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;color:var(--ink);margin:0;line-height:1.3;}
h1{font-size:clamp(30px,4vw,50px);line-height:1.22;}
h2{font-size:clamp(24px,2.6vw,34px);}
h3{font-size:clamp(19px,1.6vw,23px);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .24s ease;}
a:hover{color:var(--brand-3);}
img{max-width:100%;display:block;}
button{font-family:inherit;font-size:inherit;border:0;background:none;color:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--brand-3);outline-offset:2px;border-radius:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 左侧竖向导航 ============ */
.side-menu{
  position:fixed;left:0;top:0;bottom:0;
  width:var(--rail);
  background:var(--dark);
  display:flex;flex-direction:column;align-items:center;
  padding:28px 0 20px;
  z-index:120;
  border-right:1px solid rgba(255,255,255,.08);
}
.side-brand{
  display:flex;flex-direction:column;align-items:center;gap:10px;
  color:#F3F1EC;text-align:center;text-decoration:none;
}
.side-brand .brand-mark{
  width:34px;height:34px;border:1px solid rgba(200,162,74,.55);border-radius:50%;
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.side-brand .brand-text{
  writing-mode:vertical-rl;
  font-family:var(--serif);
  font-size:15px;letter-spacing:.16em;color:#F3F1EC;line-height:1.4;
}
.side-brand:hover .brand-text,.side-brand:hover{color:var(--brass);}
.side-nav{
  margin-top:34px;flex:1;width:100%;
  display:flex;flex-direction:column;align-items:center;gap:4px;
  overflow-y:auto;overflow-x:visible;padding-bottom:12px;
}
.nav-item{
  position:relative;width:100%;
  display:flex;flex-direction:column;align-items:center;gap:6px;
  padding:12px 4px;
  color:#A9B4B1;border-right:3px solid transparent;
  transition:color .24s ease,background .24s ease,border-color .24s ease;
}
.nav-item .nav-icon{
  width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;
  stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto;
}
.nav-item .nav-label{
  font-size:11px;line-height:1.35;letter-spacing:.04em;text-align:center;
  padding:0 2px;word-break:keep-all;
}
.nav-item:hover{color:#F3F1EC;background:rgba(255,255,255,.05);}
.nav-item.active{color:#FFFFFF;border-right-color:var(--brass);background:rgba(255,255,255,.06);}
.nav-item.active .nav-icon{stroke:var(--brass);}
.nav-tip{
  position:absolute;left:calc(100% + 10px);top:50%;transform:translateY(-50%) translateX(-6px);
  background:var(--dark);color:#F3F1EC;font-size:12px;letter-spacing:.06em;
  padding:6px 12px;border-radius:var(--radius);white-space:nowrap;
  border:1px solid rgba(255,255,255,.12);
  opacity:0;pointer-events:none;transition:opacity .24s ease,transform .24s ease;
  z-index:130;
}
.nav-item:hover .nav-tip{opacity:1;transform:translateY(-50%) translateX(0);}
.side-foot{
  width:100%;display:flex;flex-direction:column;align-items:center;gap:2px;
  border-top:1px solid rgba(255,255,255,.1);padding-top:14px;
}
.side-foot a{
  color:#A9B4B1;font-size:11px;padding:8px 4px;letter-spacing:.05em;text-align:center;
}
.side-foot a:hover{color:var(--brass);}

/* ============ 移动端顶栏与抽屉 ============ */
.topbar{
  display:none;position:sticky;top:0;z-index:200;
  background:var(--dark);height:62px;padding:0 18px;
  align-items:center;justify-content:space-between;
}
.topbar-brand{
  display:flex;align-items:center;gap:10px;color:#F3F1EC;
  font-family:var(--serif);font-size:16px;letter-spacing:.06em;
}
.topbar-brand:hover{color:var(--brass);}
.topbar-brand .brand-mark{
  width:30px;height:30px;border:1px solid rgba(200,162,74,.55);border-radius:50%;
  display:flex;align-items:center;justify-content:center;
}
.menu-toggle{
  width:44px;height:44px;display:flex;flex-direction:column;justify-content:center;
  align-items:center;gap:5px;border:1px solid rgba(255,255,255,.18);border-radius:var(--radius);
}
.menu-toggle span{display:block;width:20px;height:2px;background:#F3F1EC;transition:transform .24s ease,opacity .24s ease;}
.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle.open span:nth-child(2){opacity:0;}
.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer{
  position:fixed;left:0;right:0;top:62px;bottom:0;background:var(--dark);
  transform:translateY(-102%);transition:transform .3s ease;z-index:190;
  overflow-y:auto;padding:8px 0 40px;
}
.drawer.open{transform:translateY(0);}
.drawer a{
  display:flex;align-items:center;gap:14px;min-height:56px;padding:0 22px;
  color:#D8DEDA;font-size:15px;border-bottom:1px solid rgba(255,255,255,.1);
}
.drawer a.active{color:var(--brass);border-left:3px solid var(--brass);}
.drawer a svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.drawer .drawer-brand{padding:20px 22px 14px;color:#8E9A96;font-size:12px;letter-spacing:.14em;border:0;}

/* ============ 主内容区 ============ */
.site-main{margin-left:var(--rail);}
.section{padding:96px 0;}
.section.alt{background:var(--bg-alt);}
.section.tight{padding:72px 0;}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-eyebrow{
  display:block;font-size:12px;letter-spacing:.2em;color:var(--ink-2);
  text-transform:uppercase;margin-bottom:12px;
}
.sec-head h2{position:relative;padding-left:18px;margin-bottom:16px;}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.18em;width:6px;height:28px;background:var(--brass);border-radius:1px;
}
.sec-lead{color:var(--ink-2);font-size:16px;line-height:1.85;max-width:720px;}

/* ============ Hero ============ */
.hero{padding:78px 0 72px;background:linear-gradient(180deg,#F7F5F0 0%,#EFEBE3 100%);}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero-copy .eyebrow{
  display:block;font-size:12px;letter-spacing:.24em;color:var(--ink-2);margin-bottom:16px;
}
.hero-copy h1{position:relative;padding-left:18px;margin-bottom:22px;}
.hero-copy h1::before{
  content:"";position:absolute;left:0;top:.16em;width:6px;height:34px;background:var(--brass);border-radius:1px;
}
.hero-sub{font-size:17px;color:var(--ink-2);max-width:560px;margin-bottom:32px;line-height:1.85;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px 26px;}
.hero-facts li{
  font-size:13px;color:var(--ink-2);display:flex;align-items:center;gap:8px;
}
.hero-facts li::before{
  content:"";width:6px;height:1px;background:var(--brass);display:inline-block;flex:0 0 auto;
}
.hero-media{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1);}
.hero-media img{width:100%;aspect-ratio:5/6;object-fit:cover;transition:transform .5s ease;}
.hero-media:hover img{transform:scale(1.03);}
.hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(15,61,58,.55) 0%,rgba(15,61,58,.18) 55%,rgba(18,33,31,.62) 100%);
}
.hero-media .media-cap{
  position:absolute;left:22px;right:22px;bottom:20px;color:#F3F1EC;font-size:13px;line-height:1.7;
  border-top:1px solid rgba(200,162,74,.6);padding-top:12px;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius);font-size:15px;font-weight:500;
  letter-spacing:.04em;border:1px solid transparent;cursor:pointer;
  transition:background .24s ease,color .24s ease,border-color .24s ease,transform .24s ease,box-shadow .24s ease;
}
.btn-solid{background:var(--brand);color:#FFFFFF;box-shadow:var(--shadow-1);}
.btn-solid:hover{background:var(--brand-2);color:#FFFFFF;transform:translateX(2px);}
.btn-ghost{border-color:var(--brand);color:var(--brand);background:transparent;}
.btn-ghost:hover{background:rgba(15,61,58,.08);color:var(--brand);}
.btn-brass{border:1px solid var(--brass);color:var(--dark);background:transparent;}
.btn-brass:hover{background:var(--brass);color:#14211F;}
.btn-light{background:#F3F1EC;color:var(--dark);}
.btn-light:hover{background:#FFFFFF;color:var(--dark);transform:translateX(2px);}
.btn-outline-light{border-color:rgba(243,241,236,.6);color:#F3F1EC;}
.btn-outline-light:hover{border-color:var(--brass);color:var(--brass);}

/* ============ 卡片与网格 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.card{
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px;box-shadow:var(--shadow-1);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
  display:flex;flex-direction:column;height:100%;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CFC7B8;}
.card .card-num{
  font-family:var(--serif);font-size:30px;color:var(--brass);line-height:1;margin-bottom:16px;
}
.card h3{margin-bottom:12px;font-size:21px;}
.card p{color:var(--ink-2);font-size:15.5px;line-height:1.85;}
.card .card-list{margin-top:16px;display:flex;flex-direction:column;gap:9px;}
.card .card-list li{
  position:relative;padding-left:16px;font-size:14.5px;color:var(--ink-2);line-height:1.7;
}
.card .card-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:1px;background:var(--brass);
}
.badge{
  display:inline-block;padding:3px 12px;border:1px solid var(--brass);border-radius:999px;
  font-size:12px;letter-spacing:.08em;color:var(--brand);background:transparent;
}

/* ============ 步骤流程 ============ */
.steps{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line);}
.step{
  display:grid;grid-template-columns:96px 1fr;gap:24px;
  padding:28px 0;border-bottom:1px solid var(--line);
  transition:background .24s ease,padding-left .24s ease;
}
.step:hover{background:#FFFFFF;padding-left:16px;}
.step .step-num{
  font-family:var(--serif);font-size:36px;color:var(--brass);line-height:1;letter-spacing:.02em;
}
.step h3{margin-bottom:8px;font-size:20px;}
.step p{color:var(--ink-2);font-size:15.5px;max-width:760px;}

/* ============ 图文交替 ============ */
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  padding:38px 0;
}
.feature-row + .feature-row{border-top:1px solid var(--line);}
.feature-row.reverse .feature-media{order:2;}
.feature-media{position:relative;overflow:hidden;border-radius:var(--radius);border:1px solid var(--line);}
.feature-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease;}
.feature-media:hover img{transform:scale(1.03);}
.feature-body h3{position:relative;padding-left:16px;margin-bottom:14px;}
.feature-body h3::before{
  content:"";position:absolute;left:0;top:.22em;width:5px;height:20px;background:var(--brass);
}
.feature-body p{color:var(--ink-2);font-size:15.5px;margin-bottom:14px;}
.feature-body .plain-list{display:flex;flex-direction:column;gap:10px;margin-top:6px;}
.feature-body .plain-list li{
  position:relative;padding-left:18px;font-size:14.8px;color:var(--ink-2);
}
.feature-body .plain-list li::before{
  content:"";position:absolute;left:0;top:.75em;width:7px;height:1px;background:var(--brass);
}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line);max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;
  min-height:56px;padding:14px 0;text-align:left;
  font-family:var(--serif);font-size:17.5px;font-weight:700;color:var(--ink);
  transition:color .24s ease;
}
.faq-q:hover{color:var(--brand-2);}
.faq-q .q-index{
  font-size:13px;color:var(--brass);letter-spacing:.1em;flex:0 0 auto;font-family:var(--sans);font-weight:500;
}
.faq-q .q-text{flex:1;}
.faq-q .q-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform .28s ease;
}
.faq-q .q-icon::before,.faq-q .q-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:1px;
}
.faq-q .q-icon::before{left:0;top:10px;width:22px;height:2px;}
.faq-q .q-icon::after{left:10px;top:0;width:2px;height:22px;transition:opacity .24s ease,transform .28s ease;}
.faq-item.open .faq-q .q-icon{transform:rotate(90deg);}
.faq-item.open .faq-q .q-icon::after{opacity:0;transform:scaleY(.2);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .34s ease;
}
.faq-a p{
  padding:0 0 22px 39px;color:var(--ink-2);font-size:15.5px;line-height:1.9;max-width:820px;
}

/* ============ CTA 深色区 ============ */
.cta-band{
  background:var(--dark);color:#EDEAE3;position:relative;overflow:hidden;
  padding:88px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.24;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:center;}
.cta-band h2{color:#F5F3EE;position:relative;padding-left:18px;margin-bottom:16px;}
.cta-band h2::before{
  content:"";position:absolute;left:0;top:.18em;width:6px;height:28px;background:var(--brass);
}
.cta-band p{color:#BFC7C3;font-size:16px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
.cta-meta{
  position:relative;z-index:2;margin-top:40px;display:flex;flex-wrap:wrap;gap:12px 40px;
  border-top:1px solid rgba(255,255,255,.14);padding-top:22px;
}
.cta-meta span{font-size:13.5px;color:#9DAAA6;letter-spacing:.03em;}

/* ============ 双按钮结束区 ============ */
.end-bar{
  padding:64px 0;background:var(--bg-alt);border-top:1px solid var(--line);
}
.end-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
}
.end-inner h2{font-size:24px;margin-bottom:8px;}
.end-inner p{color:var(--ink-2);font-size:15px;}
.end-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 页脚 ============ */
.footer{background:var(--dark);color:#C6CDCA;padding:72px 0 0;}
.foot-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:0;
}
.foot-col{padding:0 28px;border-left:1px solid rgba(255,255,255,.12);}
.foot-col:first-child{padding-left:0;border-left:0;}
.foot-brand{
  display:flex;align-items:center;gap:10px;
  font-family:var(--serif);font-size:18px;color:#F3F1EC;margin-bottom:16px;letter-spacing:.04em;
}
.foot-brand .brand-mark{
  width:30px;height:30px;border:1px solid rgba(200,162,74,.55);border-radius:50%;
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.foot-text{font-size:14px;color:#9BA5A1;line-height:1.85;}
.foot-title{
  font-size:15px;color:#F3F1EC;margin-bottom:16px;font-family:var(--serif);letter-spacing:.06em;
}
.foot-links,.foot-info{display:flex;flex-direction:column;gap:10px;}
.foot-links a{color:#9BA5A1;font-size:14px;}
.foot-links a:hover{color:var(--brass);}
.foot-info li{font-size:14px;color:#9BA5A1;}
.foot-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px 30px;justify-content:space-between;
  font-size:13px;color:#7F8A86;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--rail:76px;}
  .nav-item .nav-label{font-size:10px;}
  .side-brand .brand-text{font-size:13px;}
  .hero-grid{gap:40px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px 0;}
  .foot-col:nth-child(3){padding-left:0;border-left:0;}
}
@media (max-width:1023px){
  .side-menu{display:none;}
  .topbar{display:flex;}
  .site-main{margin-left:0;}
  .section{padding:64px 0;}
  .hero{padding:56px 0;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media img{aspect-ratio:16/10;}
  .grid-3{grid-template-columns:1fr 1fr;}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .cta-actions{justify-content:flex-start;}
  .feature-row{gap:32px;}
  .foot-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:52px 0;}
  .hero{padding:44px 0;}
  .hero-copy h1{font-size:30px;}
  .hero-copy h1::before{height:24px;}
  .hero-sub{font-size:16px;margin-bottom:26px;}
  .hero-actions .btn{width:100%;}
  .hero-media img{aspect-ratio:4/3;}
  .hero-media .media-cap{left:16px;right:16px;bottom:14px;font-size:12px;}
  .grid-3,.grid-2{grid-template-columns:1fr;}
  .feature-row,.feature-row.reverse{grid-template-columns:1fr;}
  .feature-row.reverse .feature-media{order:0;}
  .step{grid-template-columns:56px 1fr;gap:14px;padding:22px 0;}
  .step .step-num{font-size:26px;}
  .step:hover{padding-left:0;}
  .sec-head{margin-bottom:30px;}
  .faq-q{font-size:16px;min-height:52px;}
  .faq-a p{padding-left:0;}
  .cta-band{padding:60px 0;}
  .end-inner{flex-direction:column;align-items:flex-start;}
  .end-actions{width:100%;}
  .end-actions .btn{width:100%;}
  .foot-grid{grid-template-columns:1fr;gap:0;}
  .foot-col{padding:24px 0;border-left:0;border-top:1px solid rgba(255,255,255,.12);}
  .foot-col:first-child{border-top:0;padding-top:0;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .card:hover{transform:none;}
  .hero-media:hover img,.feature-media:hover img{transform:none;}
  .btn:hover{transform:none;}
}

/* roulang page: article */
:root{
  --ink:#0F3D3A;
  --ink-2:#1C5C56;
  --ink-3:#2E7A72;
  --brass:#C8A24A;
  --bg:#F7F5F0;
  --bg-alt:#EFEBE3;
  --dark:#12211F;
  --text:#22201D;
  --text-2:#3A3831;
  --muted:#6B665E;
  --line:#DCD6CA;
  --white:#FFFFFF;
  --radius:4px;
  --shadow-1:0 1px 2px rgba(18,33,31,.06);
  --shadow-2:0 8px 24px rgba(18,33,31,.10);
  --nav-w:92px;
  --serif:"Noto Serif SC","Source Han Serif SC","PingFang SC",serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink);text-decoration:none;transition:color .24s ease}
a:hover{color:var(--ink-2)}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;line-height:1.25;margin:0;color:var(--text)}
p{margin:0 0 1em}
:focus-visible{outline:2px solid var(--brass);outline-offset:3px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:76px 0}
.section-tight{padding:56px 0}
.sec-head{margin-bottom:32px}
.sec-eyebrow{
  display:block;
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:10px;
  font-family:var(--sans);
  font-weight:500;
}
.sec-title{position:relative;padding-left:18px;font-size:34px}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;top:.16em;
  width:6px;height:28px;
  background:var(--brass);
  border-radius:2px;
}
.rule{height:1px;background:var(--line);border:0;margin:0}

/* ============ 左侧竖向导航 ============ */
.side-menu{
  position:fixed;
  left:0;top:0;bottom:0;
  width:var(--nav-w);
  background:var(--dark);
  display:flex;
  flex-direction:column;
  align-items:center;
  padding:22px 0 18px;
  z-index:80;
}
.brand{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
  width:64px;
  padding-bottom:22px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.brand-mark{
  display:inline-flex;
  width:34px;height:34px;
  align-items:center;justify-content:center;
  border:1px solid rgba(200,162,74,.5);
  border-radius:var(--radius);
}
.brand-text{
  font-family:var(--serif);
  font-size:12.5px;
  line-height:1.5;
  letter-spacing:.04em;
  color:#F7F5F0;
  text-align:center;
}
.nav-list{
  flex:1;
  width:100%;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:6px;
  padding:20px 0;
}
.nav-item{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:7px;
  width:74px;
  padding:12px 4px;
  border-radius:var(--radius);
  border-right:3px solid transparent;
  color:rgba(247,245,240,.62);
  transition:color .24s ease,background .24s ease,border-color .24s ease;
}
.nav-item:hover{color:#F7F5F0;background:rgba(255,255,255,.06)}
.nav-item.active{
  color:#F7F5F0;
  background:rgba(200,162,74,.12);
  border-right-color:var(--brass);
}
.nav-icon{
  width:22px;height:22px;
  fill:none;
  stroke:currentColor;
  stroke-width:1.6;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.nav-label{font-size:11px;line-height:1.35;text-align:center;letter-spacing:.02em}
.nav-tip{
  position:absolute;
  left:calc(100% + 12px);
  top:50%;
  transform:translateY(-50%) translateX(-6px);
  background:var(--dark);
  border:1px solid rgba(200,162,74,.45);
  color:#F7F5F0;
  font-size:13px;
  line-height:1;
  padding:9px 13px;
  border-radius:var(--radius);
  white-space:nowrap;
  opacity:0;
  pointer-events:none;
  transition:opacity .24s ease,transform .24s ease;
}
.nav-item:hover .nav-tip{opacity:1;transform:translateY(-50%) translateX(0)}
.side-foot{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
  padding-top:16px;
  border-top:1px solid rgba(255,255,255,.12);
  width:64px;
}
.side-top{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:7px;
  color:rgba(247,245,240,.62);
  font-size:11px;
  transition:color .24s ease;
}
.side-top:hover{color:var(--brass)}
.side-top svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}

/* ============ 移动端顶栏 ============ */
.topbar{display:none}
.burger{width:42px;height:42px;border:1px solid rgba(255,255,255,.22);border-radius:var(--radius);display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;transition:border-color .24s ease}
.burger:hover{border-color:var(--brass)}
.burger span{display:block;width:18px;height:2px;background:#F7F5F0;transition:transform .28s ease,opacity .2s ease}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--radius);
  border:1px solid transparent;
  font-size:15px;
  font-weight:500;
  line-height:1.2;
  cursor:pointer;
  transition:background .24s ease,color .24s ease,border-color .24s ease,transform .24s ease;
}
.btn-primary{background:var(--ink);color:#F7F5F0;border-color:var(--ink)}
.btn-primary:hover{background:var(--ink-2);border-color:var(--ink-2);color:#fff;transform:translateX(2px)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:rgba(15,61,58,.08);color:var(--ink)}
.btn-brass{background:var(--brass);border-color:var(--brass);color:#1B1710}
.btn-brass:hover{background:#D6B15E;border-color:#D6B15E;color:#1B1710;transform:translateX(2px)}
.btn-ghost-light{background:transparent;border-color:rgba(247,245,240,.45);color:#F7F5F0}
.btn-ghost-light:hover{background:rgba(200,162,74,.16);border-color:var(--brass);color:#F7F5F0}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--muted);
  padding-top:34px;
}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brass)}
.crumb .crumb-sep{color:var(--line)}
.crumb .crumb-cur{color:var(--text-2)}

/* ============ 文章头部 ============ */
.article-head{
  padding:26px 0 30px;
  border-bottom:1px solid var(--line);
}
.article-title{
  position:relative;
  font-size:48px;
  line-height:1.24;
  margin-top:14px;
  max-width:900px;
}
.article-title::before{
  content:"";
  display:block;
  width:6px;height:28px;
  background:var(--brass);
  border-radius:2px;
  margin-bottom:18px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 16px;
  margin-top:22px;
  font-size:14px;
  color:var(--muted);
}
.article-meta .sep{display:inline-block;width:1px;height:12px;background:var(--line)}

/* ============ 正文 ============ */
.article-section{padding:0 0 20px}
.article-body{
  max-width:760px;
  margin:52px 0 0;
  font-size:17px;
  line-height:1.9;
  color:var(--text-2);
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.35em}
.article-body h2{
  position:relative;
  font-size:32px;
  margin:52px 0 18px;
  padding-left:18px;
  color:var(--text);
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.16em;
  width:6px;height:26px;
  background:var(--brass);
  border-radius:2px;
}
.article-body h3{font-size:23px;margin:36px 0 14px;color:var(--text)}
.article-body h4{font-size:19px;margin:28px 0 12px;color:var(--text)}
.article-body a{color:var(--ink-2);border-bottom:1px solid rgba(15,61,58,.32)}
.article-body a:hover{color:var(--brass);border-bottom-color:var(--brass)}
.article-body ul,.article-body ol{margin:0 0 1.35em}
.article-body li{position:relative;padding-left:26px;margin-bottom:10px}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:6px;top:.78em;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--brass);
}
.article-body ol{counter-reset:olist}
.article-body ol li{counter-increment:olist}
.article-body ol li::before{
  content:counter(olist);
  position:absolute;
  left:0;top:0;
  font-family:var(--serif);
  font-weight:700;
  color:var(--brass);
  font-size:15px;
}
.article-body blockquote{
  margin:28px 0;
  padding:18px 24px;
  border-left:3px solid var(--brass);
  background:var(--bg-alt);
  border-radius:0 var(--radius) var(--radius) 0;
  color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius);margin:26px 0 10px;width:100%;height:auto}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--muted);margin-top:8px;text-align:center}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:26px 0;
  font-size:15px;
  background:var(--white);
  border:1px solid var(--line);
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:11px 14px;
  text-align:left;
  vertical-align:top;
}
.article-body th{background:var(--bg-alt);color:var(--text);font-weight:500}
.article-body code{
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:3px;
  padding:1px 6px;
  font-size:14.5px;
}
.empty-state{
  max-width:760px;
  margin:56px 0 0;
  padding:52px 40px;
  background:var(--white);
  border:1px dashed var(--line);
  border-radius:var(--radius);
  text-align:center;
}
.empty-title{font-size:26px;margin-bottom:12px}
.empty-text{color:var(--muted);font-size:15.5px;margin-bottom:24px}

/* ============ 卡片 ============ */
.rel-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.card{
  display:flex;
  flex-direction:column;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  color:var(--text);
  box-shadow:var(--shadow-1);
  transition:transform .28s ease,box-shadow .28s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);color:var(--text)}
.card-media{aspect-ratio:16/10;overflow:hidden;background:var(--bg-alt)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.badge{
  align-self:flex-start;
  display:inline-block;
  font-size:12px;
  letter-spacing:.08em;
  padding:3px 10px;
  border:1px solid var(--brass);
  border-radius:999px;
  color:var(--ink-2);
  margin-bottom:14px;
}
.card-title{font-size:19px;line-height:1.45;margin-bottom:10px}
.card-text{font-size:15px;line-height:1.8;color:var(--muted);margin:0 0 18px}
.card-link{
  margin-top:auto;
  font-size:14px;
  color:var(--ink-2);
  border-bottom:1px solid rgba(15,61,58,.32);
  align-self:flex-start;
  transition:color .24s ease,border-color .24s ease;
}
.card:hover .card-link{color:var(--brass);border-bottom-color:var(--brass)}

/* ============ FAQ ============ */
.faq-list{border-bottom:1px solid var(--line)}
.faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  gap:16px;
  min-height:56px;
  padding:14px 0;
  text-align:left;
  font-family:var(--serif);
  font-size:18px;
  color:var(--text);
  transition:color .24s ease;
}
.faq-q:hover{color:var(--ink-2)}
.faq-num{
  font-family:var(--serif);
  font-size:13px;
  letter-spacing:.1em;
  color:var(--brass);
  flex:0 0 auto;
}
.faq-plus{
  position:relative;
  margin-left:auto;
  width:16px;height:16px;
  flex:0 0 auto;
}
.faq-plus::before,.faq-plus::after{
  content:"";
  position:absolute;
  left:0;top:50%;
  width:16px;height:2px;
  background:var(--brass);
  transition:transform .28s ease,opacity .28s ease;
}
.faq-plus::after{transform:rotate(90deg)}
.faq-item.open .faq-plus::after{transform:rotate(0deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-item.open .faq-a{max-height:420px}
.faq-a-inner{padding:0 0 22px 40px;font-size:15.5px;line-height:1.85;color:var(--muted);max-width:820px}

/* ============ CTA ============ */
.cta-band{
  background:var(--dark);
  border-radius:var(--radius);
  padding:56px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
  border:1px solid rgba(200,162,74,.28);
}
.cta-title{color:#F7F5F0;font-size:30px;margin-bottom:12px}
.cta-text{color:rgba(247,245,240,.7);font-size:15.5px;margin:0;max-width:620px;line-height:1.85}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.footer{
  background:var(--dark);
  color:rgba(255,255,255,.72);
  padding:72px 0 28px;
  margin-top:96px;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr}
.foot-col{padding:0 28px;border-left:1px solid rgba(255,255,255,.12)}
.foot-col:first-child{border-left:0;padding-left:0}
.foot-col:last-child{padding-right:0}
.foot-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--serif);
  font-size:19px;
  color:#F7F5F0;
  margin-bottom:16px;
}
.brand-mark{
  display:inline-flex;
  width:30px;height:30px;
  align-items:center;justify-content:center;
  border:1px solid rgba(200,162,74,.5);
  border-radius:var(--radius);
}
.foot-title{font-size:15px;color:#F7F5F0;margin-bottom:16px;font-weight:600}
.foot-text{font-size:15px;line-height:1.85;color:rgba(255,255,255,.66);margin:0}
.foot-links li,.foot-info li{margin-bottom:11px}
.foot-links a{color:rgba(255,255,255,.72);font-size:15px}
.foot-links a:hover{color:var(--brass)}
.foot-info li{font-size:15px;color:rgba(255,255,255,.66)}
.foot-bottom{
  margin-top:48px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (min-width:1024px){
  body{padding-left:var(--nav-w)}
}
@media (max-width:1279px){
  .container{padding:0 26px}
  .article-title{font-size:42px}
  .sec-title{font-size:30px}
  .cta-band{padding:48px 36px}
}
@media (max-width:1023px){
  body{padding-top:60px}
  .topbar{
    display:flex;
    align-items:center;
    justify-content:space-between;
    position:fixed;
    top:0;left:0;right:0;
    height:60px;
    padding:0 18px;
    background:var(--dark);
    border-bottom:1px solid rgba(255,255,255,.1);
    z-index:90;
  }
  .topbar-brand{
    font-family:var(--serif);
    font-size:16px;
    color:#F7F5F0;
    letter-spacing:.02em;
  }
  .side-menu{
    width:100%;
    left:0;right:0;top:0;bottom:0;
    align-items:stretch;
    padding:60px 0 24px;
    overflow-y:auto;
    transform:translateX(-100%);
    transition:transform .32s ease;
  }
  .side-menu.open{transform:translateX(0)}
  .brand{
    flex-direction:row;
    width:auto;
    gap:12px;
    padding:18px 24px;
    border-bottom:1px solid rgba(255,255,255,.12);
  }
  .brand-text{font-size:15px;text-align:left}
  .brand-text br{display:none}
  .nav-list{align-items:stretch;gap:0;padding:0;flex:none}
  .nav-item{
    flex-direction:row;
    justify-content:flex-start;
    gap:14px;
    width:auto;
    height:56px;
    padding:0 24px;
    border-radius:0;
    border-right:0;
    border-bottom:1px solid rgba(220,214,202,.16);
  }
  .nav-item.active{border-right:0;border-left:3px solid var(--brass)}
  .nav-label{font-size:15px;text-align:left}
  .nav-tip{display:none}
  .side-foot{
    flex-direction:row;
    width:auto;
    justify-content:flex-start;
    padding:18px 24px 0;
    border-top:1px solid rgba(255,255,255,.12);
  }
  .side-top{flex-direction:row;gap:10px;font-size:14px}
  .crumb{padding-top:24px}
  .article-title{font-size:34px}
  .article-title::before{height:22px;margin-bottom:14px}
  .article-body{margin-top:38px;font-size:16.5px}
  .article-body h2{font-size:27px;margin-top:42px}
  .article-body h3{font-size:21px}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px 0}
  .foot-col:nth-child(odd){border-left:0;padding-left:0}
  .cta-band{padding:40px 28px}
  .cta-title{font-size:26px}
  .section{padding:60px 0}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .article-title{font-size:30px}
  .sec-title{font-size:24px}
  .sec-title::before{height:20px;top:.14em}
  .article-meta{gap:6px 12px;font-size:13.5px}
  .article-body{font-size:16px;line-height:1.9}
  .article-body table{font-size:14px}
  .article-body th,.article-body td{padding:9px 10px}
  .rel-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:0}
  .foot-col{border-left:0;padding:26px 0;border-top:1px solid rgba(255,255,255,.12)}
  .foot-col:first-child{border-top:0;padding-top:0}
  .foot-col:last-child{padding-bottom:0}
  .cta-band{padding:34px 22px;gap:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .faq-q{font-size:16.5px}
  .faq-a-inner{padding-left:0}
  .empty-state{padding:38px 22px}
  .section{padding:48px 0}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .card:hover{transform:none}
  .btn:hover{transform:none}
  .card:hover .card-media img{transform:none}
}

/* roulang page: category3 */
:root{
  --brand:#0F3D3A;
  --brand-2:#1C5C56;
  --brand-3:#2E7A72;
  --brass:#C8A24A;
  --brass-soft:rgba(200,162,74,.16);
  --bg:#F7F5F0;
  --bg-alt:#EFEBE3;
  --dark:#12211F;
  --ink:#22201D;
  --ink-2:#6B665E;
  --line:#DCD6CA;
  --white:#fff;
  --err:#B4432F;
  --radius:4px;
  --shadow-1:0 1px 2px rgba(18,33,31,.06);
  --shadow-2:0 8px 24px rgba(18,33,31,.10);
  --sidebar:92px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius)}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:700;line-height:1.35;color:var(--ink)}
p{margin:0}
button{font-family:inherit}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--brass);outline-offset:3px}

/* ---------- 布局骨架 ---------- */
.layout{min-height:100vh}
.main{margin-left:var(--sidebar);display:flex;flex-direction:column;min-height:100vh}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- 左侧竖向导航 ---------- */
.sidebar{
  position:fixed;
  inset:0 auto 0 0;
  width:var(--sidebar);
  background:var(--dark);
  display:flex;
  flex-direction:column;
  align-items:center;
  padding:22px 0 18px;
  z-index:60;
  border-right:1px solid rgba(255,255,255,.08);
}
.brand{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  padding-bottom:18px;
  border-bottom:1px solid rgba(255,255,255,.12);
  width:100%;
}
.brand-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(200,162,74,.55);
  border-radius:var(--radius);
  background:rgba(200,162,74,.08);
}
.brand-name{
  font-size:11px;
  line-height:1.35;
  letter-spacing:.06em;
  color:#E8E3D8;
  text-align:center;
  padding:0 6px;
  font-family:var(--font-serif);
}
.side-menu{
  display:flex;
  flex-direction:column;
  width:100%;
  margin-top:14px;
  flex:1 1 auto;
  overflow-y:auto;
}
.nav-item{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:7px;
  padding:14px 6px;
  color:#93A9A4;
  border-right:3px solid transparent;
  transition:color .24s ease,background-color .24s ease,border-color .24s ease;
}
.nav-item + .nav-item{border-top:1px solid rgba(255,255,255,.06)}
.nav-item:hover,.nav-item:focus-visible{color:#F2EEE4;background:rgba(255,255,255,.04)}
.nav-item.active{color:#F6F1E4;border-right-color:var(--brass);background:rgba(200,162,74,.07)}
.nav-icon{
  width:22px;height:22px;
  fill:none;stroke:currentColor;stroke-width:1.6;
  stroke-linecap:round;stroke-linejoin:round;
}
.nav-label{
  font-size:11px;
  line-height:1.3;
  text-align:center;
  letter-spacing:.02em;
  max-width:78px;
}
.nav-tip{
  position:absolute;
  left:calc(100% + 10px);
  top:50%;
  transform:translateY(-50%) translateX(-6px);
  background:var(--brand);
  color:#F2EEE4;
  font-size:12px;
  line-height:1;
  padding:8px 12px;
  border-radius:var(--radius);
  white-space:nowrap;
  opacity:0;
  pointer-events:none;
  transition:opacity .24s ease,transform .24s ease;
  box-shadow:var(--shadow-2);
  z-index:20;
}
.nav-item:hover .nav-tip{opacity:1;transform:translateY(-50%) translateX(0)}
.side-foot{
  width:100%;
  padding-top:14px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
}
.icon-btn{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  background:transparent;
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius);
  color:#93A9A4;
  cursor:pointer;
  transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
.icon-btn:hover{color:#F6F1E4;border-color:var(--brass);background:rgba(200,162,74,.1)}

/* ---------- 移动端顶栏 ---------- */
.mobile-bar{
  display:none;
  position:sticky;
  top:0;
  z-index:50;
  background:var(--dark);
  border-bottom:1px solid rgba(255,255,255,.1);
  align-items:center;
  justify-content:space-between;
  padding:12px 18px;
}
.mb-brand{display:flex;align-items:center;gap:10px;color:#F4F0E6;font-family:var(--font-serif);font-size:15px}
.mb-toggle{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;border:1px solid rgba(200,162,74,.5);
  color:#F4F0E6;border-radius:var(--radius);
  padding:8px 12px;font-size:13px;cursor:pointer;
}
.scrim{
  display:none;
  position:fixed;inset:0;
  background:rgba(18,33,31,.55);
  z-index:55;
}
.scrim.show{display:block}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0}
.section.alt{background:var(--bg-alt)}
.section.dark{background:var(--dark);color:#E9E4D8}
.section.dark h2,.section.dark h3{color:#F6F1E4}
.eyebrow{
  font-size:12px;
  letter-spacing:.08em;
  color:var(--ink-2);
  text-transform:uppercase;
  margin-bottom:12px;
}
.eyebrow-light{color:rgba(246,241,228,.75)}
.section-head{max-width:740px;margin-bottom:44px}
.section-head h2{font-size:34px;position:relative;padding-left:20px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:8px;
  width:6px;height:calc(100% - 16px);max-height:28px;
  background:var(--brass);border-radius:1px;
}
.section-desc{margin-top:16px;color:var(--ink-2);font-size:16px;max-width:680px}
.section.dark .section-desc{color:rgba(233,228,216,.78)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--radius);
  font-size:15px;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--brand);color:#F6F1E4;border-color:var(--brand)}
.btn-primary:hover{background:var(--brand-2);border-color:var(--brand-2);transform:translateX(2px);box-shadow:var(--shadow-1)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:rgba(15,61,58,.08)}
.btn-ghost-light{background:transparent;color:#F6F1E4;border-color:rgba(246,241,228,.55)}
.btn-ghost-light:hover{background:rgba(246,241,228,.12);border-color:#F6F1E4}
.btn-brass{background:var(--brass);color:#1B1610;border-color:var(--brass)}
.btn-brass:hover{background:#D6B160;border-color:#D6B160}
.btn:active{transform:translateY(1px)}

/* ---------- Hero（居中版式） ---------- */
.hero{position:relative;overflow:hidden;background:var(--dark)}
.hero-media{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;
  background-position:center;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,61,58,.88),rgba(18,33,31,.92));
}
.hero-inner{
  position:relative;z-index:2;
  padding-top:104px;
  padding-bottom:104px;
  max-width:860px;
  margin:0 auto;
  text-align:center;
}
.hero-title{
  font-size:clamp(30px,4.2vw,52px);
  color:#F8F4EA;
  letter-spacing:.01em;
  margin-bottom:20px;
}
.hero-sub{
  color:rgba(240,236,226,.86);
  font-size:17px;
  line-height:1.9;
  max-width:640px;
  margin:0 auto 32px;
}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-meta{
  display:flex;gap:26px;justify-content:center;flex-wrap:wrap;
  margin-top:34px;
  font-size:13px;
  color:rgba(240,236,226,.68);
  letter-spacing:.02em;
}
.hero-meta li{position:relative;padding-left:14px}
.hero-meta li::before{
  content:"";position:absolute;left:0;top:50%;
  width:5px;height:5px;margin-top:-2.5px;
  background:var(--brass);border-radius:50%;
}

/* ---------- 编号目录长列表 ---------- */
.index-list{border-top:1px solid var(--line)}
.index-item{
  display:grid;
  grid-template-columns:110px 1fr;
  gap:28px;
  align-items:start;
  padding:34px 8px;
  border-bottom:1px solid var(--line);
  transition:background-color .24s ease,padding-left .24s ease;
}
.index-item:hover{background:rgba(200,162,74,.06);padding-left:16px}
.index-num{
  font-family:var(--font-serif);
  font-size:46px;
  line-height:1;
  color:var(--brass);
  letter-spacing:.02em;
}
.index-body h3{font-size:23px;margin-bottom:10px}
.index-body p{color:var(--ink-2);font-size:16px;max-width:820px}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;letter-spacing:.06em;
  color:var(--brand);
  border:1px solid rgba(200,162,74,.7);
  background:rgba(200,162,74,.08);
  border-radius:999px;
  padding:4px 12px;
  line-height:1.5;
}

/* ---------- 场景卡片 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .24s ease,box-shadow .24s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.card-media{aspect-ratio:16/10;overflow:hidden;background:var(--bg-alt)}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:20px}
.card-body p{color:var(--ink-2);font-size:15.5px}
.card-link{
  margin-top:auto;
  font-size:14px;
  color:var(--brand);
  display:inline-flex;align-items:center;gap:6px;
  position:relative;
  align-self:flex-start;
}
.card-link::after{
  content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;
  background:var(--brass);transition:width .24s ease;
}
.card-link:hover::after{width:100%}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  padding:36px 0;
  border-top:1px solid rgba(255,255,255,.14);
  border-bottom:1px solid rgba(255,255,255,.14);
}
.stat-num{
  font-family:var(--font-serif);
  font-size:38px;
  color:var(--brass);
  line-height:1.1;
}
.stat-label{font-size:14px;color:rgba(233,228,216,.76);margin-top:8px}

/* ---------- 相关分类 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{
  display:flex;flex-direction:column;gap:12px;
  padding:26px 24px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(200,162,74,.7)}
.related-card h3{font-size:19px}
.related-card p{color:var(--ink-2);font-size:15px}
.related-card .card-link{margin-top:6px}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);max-width:900px}
.qa{border-bottom:1px solid var(--line)}
.qa summary{
  list-style:none;
  cursor:pointer;
  min-height:56px;
  display:flex;
  align-items:center;
  gap:16px;
  padding:16px 4px;
  font-family:var(--font-serif);
  font-size:18px;
  color:var(--ink);
  transition:color .2s ease;
}
.qa summary::-webkit-details-marker{display:none}
.qa summary:hover{color:var(--brand-2)}
.qa-num{font-family:var(--font-serif);color:var(--brass);font-size:16px;min-width:28px}
.qa-plus{
  margin-left:auto;
  width:18px;height:18px;position:relative;flex:none;
  transition:transform .24s ease;
}
.qa-plus::before,.qa-plus::after{
  content:"";position:absolute;background:var(--brand-2);border-radius:1px;
}
.qa-plus::before{left:0;right:0;top:8px;height:2px}
.qa-plus::after{top:0;bottom:0;left:8px;width:2px}
.qa[open] .qa-plus{transform:rotate(90deg)}
.qa[open] .qa-plus::after{opacity:0}
.qa-answer{padding:0 4px 22px 44px;color:var(--ink-2);font-size:16px;line-height:1.85}

/* ---------- CTA / 订阅 ---------- */
.cta-wrap{
  display:grid;
  grid-template-columns:1.15fr 1fr;
  gap:48px;
  align-items:center;
}
.cta-wrap h2{font-size:34px;margin-bottom:16px}
.cta-wrap p{color:rgba(233,228,216,.8);font-size:16px;max-width:520px}
.subscribe{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.subscribe input{
  flex:1 1 220px;
  min-width:0;
  padding:14px 16px;
  border-radius:var(--radius);
  border:1px solid rgba(233,228,216,.34);
  background:rgba(247,245,240,.06);
  color:#F4F0E6;
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.subscribe input::placeholder{color:rgba(233,228,216,.5)}
.subscribe input:focus{
  outline:none;
  border-color:var(--brass);
  box-shadow:0 0 0 3px rgba(200,162,74,.22);
}
.form-hint{font-size:13px;margin-top:10px;color:rgba(233,228,216,.62)}
.form-hint.err{color:#F0A08D}
.form-hint.ok{color:#8AC5A6}

.back-row{
  display:flex;gap:16px;flex-wrap:wrap;
  padding-top:44px;margin-top:8px;
  border-top:1px solid var(--line);
}

/* ---------- 页脚 ---------- */
.footer{background:var(--dark);color:#C9C3B6;padding:72px 0 28px;margin-top:auto}
.foot-grid{
  display:grid;
  grid-template-columns:1.3fr 1fr 1fr 1.2fr;
  gap:0;
}
.foot-col{padding:0 26px;border-left:1px solid rgba(255,255,255,.12)}
.foot-col:first-child{padding-left:0;border-left:none}
.foot-col:last-child{padding-right:0}
.foot-brand{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-serif);
  font-size:18px;color:#F6F1E4;margin-bottom:14px;
}
.foot-text{font-size:14.5px;line-height:1.85;color:#A9A395}
.foot-title{font-size:15px;color:#F6F1E4;margin-bottom:16px;font-family:var(--font-serif)}
.foot-links li,.foot-info li{font-size:14.5px;line-height:2;color:#A9A395}
.foot-links a{position:relative;transition:color .2s ease}
.foot-links a:hover{color:var(--brass)}
.foot-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:#8E887B;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sidebar:76px}
  .nav-label{font-size:10px;max-width:66px}
  .nav-tip{display:none}
}
@media (max-width:1023px){
  .sidebar{
    transform:translateX(-100%);
    transition:transform .28s ease;
    width:280px;
    align-items:stretch;
    padding:20px 0;
  }
  .sidebar.open{transform:translateX(0)}
  .brand{flex-direction:row;padding:0 20px 16px;justify-content:flex-start}
  .brand-name{font-size:14px;text-align:left}
  .side-menu{margin-top:10px}
  .nav-item{flex-direction:row;gap:12px;padding:0 20px;height:56px;align-items:center;border-right:none;border-left:3px solid transparent}
  .nav-item.active{border-right:none;border-left-color:var(--brass)}
  .nav-label{font-size:14px;max-width:none;text-align:left}
  .side-foot{border-top:1px solid rgba(255,255,255,.12);padding:14px 20px 0;flex-direction:row;justify-content:flex-start}
  .mobile-bar{display:flex}
  .main{margin-left:0}
  .container{padding:0 22px}
  .section{padding:64px 0}
  .hero-inner{padding-top:72px;padding-bottom:72px}
  .grid-3,.related-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr);gap:28px}
  .cta-wrap{grid-template-columns:1fr;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px 0}
  .foot-col:nth-child(3){padding-left:0;border-left:none}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.8}
  .section{padding:56px 0}
  .section-head h2{font-size:24px}
  .cta-wrap h2{font-size:24px}
  .hero-sub{font-size:16px}
  .hero-meta{gap:14px;flex-direction:column;align-items:center}
  .index-item{grid-template-columns:64px 1fr;gap:16px;padding:26px 4px}
  .index-num{font-size:34px}
  .index-body h3{font-size:19px}
  .grid-3,.related-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .foot-col{padding:0;border-left:none}
  .qa-answer{padding-left:4px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .btn{width:100%}
  .back-row .btn{width:100%}
  .subscribe{flex-direction:column}
  .subscribe input,.subscribe .btn{width:100%}
  .stats{grid-template-columns:1fr}
  .stat-num{font-size:30px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --brand-900:#0F3D3A;
  --brand-700:#1C5C56;
  --brand-500:#2E7A72;
  --brass:#C8A24A;
  --bg:#F7F5F0;
  --bg-alt:#EFEBE3;
  --ink:#22201D;
  --ink-2:#6B665E;
  --line:#DCD6CA;
  --dark:#12211F;
  --paper:#FFFFFF;
  --radius:4px;
  --shadow-1:0 1px 2px rgba(18,33,31,.06);
  --shadow-2:0 8px 24px rgba(18,33,31,.10);
  --serif:"Noto Serif SC","Source Han Serif SC","PingFang SC",serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --nav-w:92px;
  --err:#B4432F;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-left:var(--nav-w);
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brass);outline-offset:2px;border-radius:2px}

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

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  background:var(--dark);
  display:flex;flex-direction:column;align-items:center;
  padding:20px 0 14px;
  z-index:100;
  overflow-y:auto;
}
.side-brand{display:flex;flex-direction:column;align-items:center;gap:10px;padding:0 4px}
.brand-mark{
  width:34px;height:34px;display:grid;place-items:center;
  border:1px solid rgba(200,162,74,.5);border-radius:4px;
  background:rgba(200,162,74,.08);
}
.brand-text{
  writing-mode:vertical-rl;
  font-family:var(--serif);font-size:13px;font-weight:700;
  letter-spacing:.18em;color:#F1EDE4;line-height:1;
  padding:2px 0;
}
.side-menu{
  display:flex;flex-direction:column;width:100%;
  margin-top:26px;flex:1 1 auto;
}
.nav-item{
  position:relative;display:flex;flex-direction:column;align-items:center;gap:6px;
  padding:12px 4px;color:rgba(241,237,228,.62);
  border-right:3px solid transparent;
  transition:color .24s,background .24s,border-color .24s;
}
.nav-item:hover{color:#F1EDE4;background:rgba(255,255,255,.05)}
.nav-item.active{color:#F1EDE4;background:rgba(200,162,74,.09);border-right-color:var(--brass)}
.nav-icon{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto}
.nav-label{font-size:11px;line-height:1.35;letter-spacing:.02em;text-align:center}
.nav-tip{
  position:absolute;left:calc(100% + 10px);top:50%;
  transform:translateY(-50%) translateX(-6px);
  background:var(--dark);color:#F1EDE4;
  font-size:12px;line-height:1.4;padding:6px 10px;white-space:nowrap;
  border:1px solid rgba(200,162,74,.45);border-radius:var(--radius);
  opacity:0;pointer-events:none;
  transition:opacity .24s,transform .24s;
  z-index:6;
}
.nav-item:hover .nav-tip{opacity:1;transform:translateY(-50%) translateX(0)}
.side-foot{
  display:flex;flex-direction:column;align-items:center;gap:10px;
  width:64%;padding-top:14px;margin-top:14px;
  border-top:1px solid rgba(255,255,255,.12);
}
.side-btn{
  width:36px;height:36px;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.18);border-radius:var(--radius);
  color:rgba(241,237,228,.7);
  transition:color .24s,border-color .24s,background .24s;
}
.side-btn:hover{color:var(--brass);border-color:var(--brass);background:rgba(200,162,74,.08)}
.side-btn svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid rgba(255,255,255,.2);
  border-radius:var(--radius);padding:0;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#F1EDE4;transition:transform .24s,opacity .24s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius);
  border:1px solid transparent;font-size:15px;font-weight:500;letter-spacing:.02em;
  transition:background .24s,color .24s,border-color .24s,transform .24s;
}
.btn-primary{background:var(--brand-900);color:#F7F5F0}
.btn-primary:hover{background:var(--brand-700);transform:translateX(2px)}
.btn-ghost{border-color:rgba(247,245,240,.55);color:#F7F5F0}
.btn-ghost:hover{background:rgba(247,245,240,.14)}
.btn-outline{border-color:var(--brand-900);color:var(--brand-900)}
.btn-outline:hover{background:rgba(15,61,58,.08)}
.btn-brass{background:var(--brass);color:#12211F}
.btn-brass:hover{background:#D6B463;transform:translateX(2px)}

/* ---------- 通用文本 ---------- */
.eyebrow{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-2);margin-bottom:12px}
.sec-title{
  position:relative;padding-left:18px;
  font-family:var(--serif);font-size:34px;font-weight:700;line-height:1.3;
}
.sec-title::before{content:"";position:absolute;left:0;top:.28em;width:6px;height:28px;background:var(--brass)}
.sec-lead{margin-top:16px;max-width:760px;color:var(--ink-2);font-size:16px}
.link-u{position:relative;display:inline-block;color:var(--brand-900);font-weight:500}
.link-u::after{
  content:"";position:absolute;left:0;bottom:-3px;width:100%;height:1px;
  background:currentColor;transform:scaleX(0);transform-origin:left;
  transition:transform .24s;
}
.link-u:hover::after{transform:scaleX(1)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  color:#F7F5F0;
  padding:84px 0 76px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(15,61,58,.95) 0%,rgba(18,33,31,.88) 52%,rgba(18,33,31,.6) 100%);
}
.hero-inner{position:relative;z-index:2;max-width:840px}
.hero-crumb{font-size:13px;color:rgba(247,245,240,.7);margin-bottom:20px;letter-spacing:.04em}
.hero-crumb a:hover{color:var(--brass)}
.hero-crumb span.sep{margin:0 8px;color:rgba(247,245,240,.4)}
.hero-brand{font-size:12px;letter-spacing:.22em;color:var(--brass);margin-bottom:16px}
.hero h1{
  font-family:var(--serif);font-size:50px;font-weight:700;line-height:1.22;
  letter-spacing:.01em;
}
.hero-sub{margin-top:20px;font-size:18px;line-height:1.8;color:rgba(247,245,240,.84);max-width:660px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-block;font-size:12px;letter-spacing:.08em;
  padding:5px 12px;border:1px solid rgba(200,162,74,.6);border-radius:999px;
  color:#F1EDE4;background:rgba(200,162,74,.1);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:24px;margin-top:30px;
  padding-top:20px;border-top:1px solid rgba(255,255,255,.16);
  font-size:13px;color:rgba(247,245,240,.68);
}

/* ---------- 板块 ---------- */
.section{padding:96px 0}
.section.alt{background:var(--bg-alt)}
.section-head{margin-bottom:44px}

/* ---------- 交替图文行 ---------- */
.alt-list{border-top:1px solid var(--line)}
.alt-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:40px 0;border-bottom:1px solid var(--line);
}
.alt-row.flip .alt-media{order:2}
.alt-media{
  position:relative;overflow:hidden;border-radius:var(--radius);
  border:1px solid var(--line);background:var(--paper);box-shadow:var(--shadow-1);
  transition:box-shadow .3s,transform .3s;
}
.alt-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s}
.alt-row:hover .alt-media{box-shadow:var(--shadow-2);transform:translateY(-4px)}
.alt-row:hover .alt-media img{transform:scale(1.03)}
.alt-num{
  font-family:var(--serif);font-size:34px;font-weight:700;color:var(--brass);
  line-height:1;letter-spacing:.06em;
}
.alt-body h3{font-family:var(--serif);font-size:24px;font-weight:700;line-height:1.4;margin:12px 0 14px}
.alt-body p{color:var(--ink-2);font-size:16px}
.point-list{margin-top:20px}
.point-list li{
  position:relative;padding-left:20px;margin-bottom:10px;
  font-size:15px;color:var(--ink);
}
.point-list li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:8px;height:2px;background:var(--brass);
}
.alt-link{margin-top:22px;display:inline-block;font-size:15px}

/* ---------- 数据条 ---------- */
.stat-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:28px;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:38px 34px;box-shadow:var(--shadow-1);
}
.stat-num{font-family:var(--serif);font-size:38px;font-weight:700;color:var(--brass);line-height:1.1}
.stat-desc{margin-top:10px;font-size:14px;color:var(--ink-2);line-height:1.7}
.stat-note{margin-top:26px;font-size:15px;color:var(--ink-2);max-width:860px}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}
.flow-item{padding:30px 24px 30px 0;border-bottom:1px solid var(--line)}
.flow-item + .flow-item{padding-left:24px;border-left:1px solid var(--line)}
.flow-step{font-size:12px;letter-spacing:.16em;color:var(--brass);margin-bottom:12px}
.flow-item h3{font-family:var(--serif);font-size:20px;font-weight:700;margin-bottom:10px}
.flow-item p{font-size:15px;color:var(--ink-2)}

/* ---------- 卡片 ---------- */
.card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;transition:box-shadow .3s,transform .3s;
}
.card:hover{box-shadow:var(--shadow-2);transform:translateY(-4px)}
.card h3{font-family:var(--serif);font-size:20px;font-weight:700;margin-bottom:10px}
.card p{font-size:15px;color:var(--ink-2)}
.badge{
  display:inline-block;font-size:12px;letter-spacing:.08em;
  padding:4px 10px;border:1px solid var(--brass);border-radius:999px;
  color:var(--brand-900);background:#FBF7EC;
}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);margin-top:8px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;align-items:center;gap:16px;
  min-height:56px;padding:14px 0;
  font-size:17px;font-weight:500;color:var(--ink);
  cursor:pointer;list-style:none;
}
.faq-q::-webkit-details-marker{display:none}
.faq-num{font-family:var(--serif);font-size:15px;font-weight:700;color:var(--brass);flex:0 0 26px}
.faq-t{flex:1 1 auto}
.faq-i{position:relative;width:16px;height:16px;flex:0 0 16px}
.faq-i::before,.faq-i::after{content:"";position:absolute;background:var(--brand-900);transition:transform .24s,opacity .24s}
.faq-i::before{left:0;top:7px;width:16px;height:2px}
.faq-i::after{top:0;left:7px;width:2px;height:16px}
.faq-item[open] .faq-i::after{transform:rotate(90deg)}
.faq-a{padding:0 0 22px 42px;font-size:16px;color:var(--ink-2);line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{background:var(--dark);color:#F7F5F0;padding:76px 0}
.cta-inner{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:center}
.cta-band h2{font-family:var(--serif);font-size:32px;font-weight:700;line-height:1.35;position:relative;padding-left:18px}
.cta-band h2::before{content:"";position:absolute;left:0;top:.3em;width:6px;height:26px;background:var(--brass)}
.cta-band p{margin-top:16px;color:rgba(247,245,240,.76);font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* ---------- 页脚 ---------- */
.footer{background:var(--dark);color:rgba(241,237,228,.72);padding:64px 0 26px}
.foot-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12);
}
.foot-brand{
  display:flex;align-items:center;gap:10px;
  font-family:var(--serif);font-size:18px;font-weight:700;color:#F1EDE4;
  margin-bottom:16px;
}
.foot-brand .brand-mark{width:30px;height:30px;border-radius:4px}
.foot-text{font-size:14px;line-height:1.85;color:rgba(241,237,228,.66)}
.foot-title{font-family:var(--serif);font-size:15px;font-weight:700;color:#F1EDE4;margin-bottom:16px}
.foot-links li,.foot-info li{margin-bottom:10px;font-size:14px}
.foot-links a{position:relative;color:rgba(241,237,228,.72);transition:color .24s}
.foot-links a::after{
  content:"";position:absolute;left:0;bottom:-2px;width:100%;height:1px;
  background:var(--brass);transform:scaleX(0);transform-origin:left;transition:transform .24s;
}
.foot-links a:hover{color:var(--brass)}
.foot-links a:hover::after{transform:scaleX(1)}
.foot-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding-top:22px;font-size:13px;color:rgba(241,237,228,.5);
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* ---------- 断点：1024–1279 侧栏收窄 ---------- */
@media (max-width:1279px) and (min-width:1024px){
  :root{--nav-w:76px}
  .nav-label{display:none}
  .brand-text{font-size:12px;letter-spacing:.12em}
  .hero h1{font-size:44px}
}

/* ---------- 断点：≤1023 顶部导航 ---------- */
@media (max-width:1023px){
  body{padding-left:0;padding-top:64px}
  .side-nav{
    flex-direction:row;align-items:center;justify-content:space-between;
    width:100%;height:64px;bottom:auto;
    padding:0 16px;overflow:visible;
  }
  .side-brand{flex-direction:row;gap:10px;padding:0}
  .brand-text{writing-mode:horizontal-tb;font-size:14px;letter-spacing:.06em;padding:0}
  .nav-toggle{display:flex}
  .side-menu{
    position:fixed;top:64px;left:0;right:0;bottom:0;
    margin-top:0;padding:8px 0 24px;
    background:var(--dark);
    transform:translateX(-100%);
    transition:transform .28s ease;
    overflow-y:auto;
  }
  .side-menu.open{transform:translateX(0)}
  .nav-item{
    flex-direction:row;justify-content:flex-start;gap:14px;
    height:56px;padding:0 20px;border-right:0;
    border-bottom:1px solid rgba(255,255,255,.1);
  }
  .nav-item.active{border-right:0;border-left:3px solid var(--brass)}
  .nav-label{font-size:15px}
  .nav-tip{display:none}
  .side-foot{
    flex-direction:row;width:auto;border-top:0;margin:18px 0 0;
    padding:0 20px;gap:12px;
  }
  .side-menu .side-foot{display:flex}
  .side-nav > .side-foot{display:none}
  .sidebar-footer-slot{display:block}
  .section{padding:64px 0}
  .hero{padding:64px 0 56px}
  .hero h1{font-size:36px}
  .hero-sub{font-size:17px}
  .alt-row{grid-template-columns:1fr;gap:26px;padding:32px 0}
  .alt-row.flip .alt-media{order:0}
  .stat-band{grid-template-columns:repeat(2,1fr);gap:24px;padding:30px 24px}
  .flow{grid-template-columns:1fr}
  .flow-item{padding:24px 0}
  .flow-item + .flow-item{padding-left:0;border-left:0}
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .cta-actions{justify-content:flex-start}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}

/* ---------- 断点：≤767 移动 ---------- */
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .hero{padding:48px 0 44px}
  .hero h1{font-size:30px;line-height:1.3}
  .hero-sub{font-size:16px}
  .hero-meta{gap:14px;font-size:12px}
  .sec-title{font-size:24px}
  .sec-title::before{height:22px}
  .alt-body h3{font-size:19px}
  .alt-num{font-size:28px}
  .stat-band{grid-template-columns:1fr;padding:24px 20px}
  .stat-num{font-size:30px}
  .cta-band{padding:56px 0}
  .cta-band h2{font-size:24px}
  .btn{width:100%}
  .hero-actions,.cta-actions{flex-direction:column;align-items:stretch}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column}
  .faq-a{padding-left:0}
}

/* ---------- 断点：≤520 紧凑 ---------- */
@media (max-width:520px){
  .hero h1{font-size:27px}
  .brand-text{font-size:13px;letter-spacing:.04em}
  .card{padding:22px}
}

/* roulang page: category4 */
/* ============ 设计变量 ============ */
:root{
  --green:#0F3D3A;
  --green-2:#1C5C56;
  --green-3:#2E7A72;
  --brass:#C8A24A;
  --bg:#F7F5F0;
  --bg-alt:#EFEBE3;
  --dark:#12211F;
  --text:#22201D;
  --muted:#6B665E;
  --border:#DCD6CA;
  --white:#FFFFFF;
  --danger:#B4432F;
  --radius:4px;
  --shadow-1:0 1px 2px rgba(18,33,31,.06);
  --shadow-2:0 8px 24px rgba(18,33,31,.10);
  --sidebar-w:92px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","PingFang SC",serif;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}

/* ============ Reset / Base ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius)}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--brass);outline-offset:2px;
}
::selection{background:rgba(200,162,74,.32)}

/* ============ 容器与通用 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}
.main{margin-left:var(--sidebar-w);min-height:100vh;overflow-x:hidden}
.section{padding:96px 0}
.section--alt{background:var(--bg-alt)}
.section--dark{background:var(--dark);color:#EFEBE3}
.h2{font-family:var(--font-serif);font-size:34px;line-height:1.3;font-weight:700;position:relative;padding-left:20px}
.h2::before{content:"";position:absolute;left:0;top:.28em;width:6px;height:28px;background:var(--brass)}
.h3{font-family:var(--font-serif);font-size:23px;line-height:1.4;font-weight:700}
.eyebrow{display:block;font-size:12px;letter-spacing:.22em;color:var(--muted);text-transform:uppercase;margin-bottom:10px}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;margin-bottom:44px}
.section-head p{max-width:520px;color:var(--muted);font-size:15px;line-height:1.8}
.lead{font-size:17px;color:var(--muted);line-height:1.9}
.text-link{
  color:var(--green);font-weight:500;position:relative;display:inline-block;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:-2px;width:100%;height:1px;background:var(--green);
  transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.text-link:hover::after{transform:scaleX(1)}
.divider{height:1px;background:var(--border);border:0;margin:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius);
  font-size:15px;font-weight:500;letter-spacing:.02em;
  border:1px solid transparent;transition:background-color .24s ease,color .24s ease,border-color .24s ease,transform .24s ease;
}
.btn-primary{background:var(--green);color:#F7F5F0}
.btn-primary:hover{background:var(--green-2);transform:translateX(2px)}
.btn-ghost{background:transparent;color:var(--green);border-color:var(--green)}
.btn-ghost:hover{background:rgba(15,61,58,.08);transform:translateX(2px)}
.btn-brass{background:var(--brass);color:#12211F;border-color:var(--brass)}
.btn-brass:hover{background:#D9B463}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}

/* ============ 左侧竖向导航 ============ */
.side-menu{
  position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-w);
  background:var(--dark);z-index:80;
  display:flex;flex-direction:column;align-items:center;
  padding:24px 0 18px;
}
.side-brand{
  display:flex;flex-direction:column;align-items:center;gap:10px;
  padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.12);width:64px;
}
.brand-mark{
  width:34px;height:34px;border-radius:50%;
  border:1px solid rgba(200,162,74,.55);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:17px;height:17px;stroke:var(--brass);fill:none;stroke-width:2.4;stroke-linecap:round}
.side-brand-text{
  writing-mode:vertical-rl;letter-spacing:.14em;font-size:12px;line-height:1.25;
  color:#EFEBE3;font-family:var(--font-serif);text-align:center;
}
.side-nav{display:flex;flex-direction:column;gap:6px;margin-top:20px;width:100%;align-items:center;flex:1;overflow-y:auto;padding-bottom:10px}
.nav-item{
  position:relative;width:72px;padding:10px 4px;border-radius:var(--radius);
  display:flex;flex-direction:column;align-items:center;gap:6px;
  color:rgba(239,235,227,.72);transition:color .24s ease,background-color .24s ease;
}
.nav-item:hover{color:#F7F5F0;background:rgba(255,255,255,.05)}
.nav-item.active{color:#F7F5F0;background:rgba(255,255,255,.06)}
.nav-item.active::after{
  content:"";position:absolute;right:-10px;top:50%;transform:translateY(-50%);
  width:3px;height:32px;background:var(--brass);border-radius:2px;
}
.nav-icon{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.nav-item.active .nav-icon{stroke:var(--brass)}
.nav-label{font-size:11px;line-height:1.4;text-align:center;width:60px;letter-spacing:.01em}
.nav-tip{
  position:absolute;left:calc(100% + 12px);top:50%;
  transform:translateY(-50%) translateX(-6px);
  background:var(--dark);color:#F7F5F0;border:1px solid rgba(200,162,74,.45);
  padding:6px 12px;border-radius:var(--radius);font-size:12px;white-space:nowrap;
  opacity:0;pointer-events:none;transition:opacity .24s ease,transform .24s ease;z-index:90;
}
.nav-item:hover .nav-tip,.nav-item:focus-visible .nav-tip{opacity:1;transform:translateY(-50%) translateX(0)}
.side-foot{
  display:flex;flex-direction:column;align-items:center;gap:12px;
  padding-top:16px;border-top:1px solid rgba(255,255,255,.12);width:64px;
}
.icon-btn{
  width:36px;height:36px;border-radius:var(--radius);background:transparent;
  border:1px solid rgba(255,255,255,.18);color:rgba(239,235,227,.8);
  display:flex;align-items:center;justify-content:center;transition:.24s ease;
}
.icon-btn:hover{border-color:var(--brass);color:var(--brass)}
.icon-btn svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* ============ 移动顶栏与抽屉 ============ */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:90;
  background:var(--dark);color:#F7F5F0;
  align-items:center;justify-content:space-between;
  padding:14px 20px;border-bottom:1px solid rgba(255,255,255,.12);
}
.mb-brand{display:flex;align-items:center;gap:10px;font-family:var(--font-serif);font-size:16px;letter-spacing:.02em}
.mb-toggle{
  width:42px;height:38px;border-radius:var(--radius);background:transparent;
  border:1px solid rgba(255,255,255,.22);display:flex;align-items:center;justify-content:center;
}
.mb-toggle svg{width:20px;height:20px;stroke:#F7F5F0;fill:none;stroke-width:1.8;stroke-linecap:round}
.drawer{
  display:none;position:fixed;inset:0;z-index:100;background:var(--dark);
  padding:18px 20px 32px;overflow-y:auto;
}
.drawer.open{display:block}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.12)}
.drawer-title{font-family:var(--font-serif);color:#F7F5F0;font-size:17px}
.drawer-close{width:40px;height:40px;border:1px solid rgba(255,255,255,.22);border-radius:var(--radius);background:transparent;color:#F7F5F0;font-size:20px;line-height:1}
.drawer-list{margin-top:10px;display:flex;flex-direction:column}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;color:rgba(239,235,227,.86);border-bottom:1px solid rgba(255,255,255,.12);
  font-size:15px;transition:color .2s ease,padding-left .24s ease;
}
.drawer-list a:hover,.drawer-list a.active{color:var(--brass);padding-left:6px}
.drawer-note{margin-top:22px;font-size:13px;color:rgba(239,235,227,.56);line-height:1.8}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:var(--dark);color:#EFEBE3;border-bottom:1px solid var(--border)}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.28;filter:saturate(.85);
}
.hero-mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(15,61,58,.94) 0%,rgba(18,33,31,.86) 55%,rgba(18,33,31,.62) 100%)}
.hero-inner{position:relative;padding:64px 0 76px;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.crumb{font-size:13px;color:rgba(239,235,227,.66);margin-bottom:20px;display:flex;gap:8px;flex-wrap:wrap}
.crumb a:hover{color:var(--brass)}
.hero h1{
  font-family:var(--font-serif);font-size:46px;line-height:1.25;font-weight:700;
  padding-left:20px;position:relative;letter-spacing:.01em;
}
.hero h1::before{content:"";position:absolute;left:0;top:.22em;width:6px;height:32px;background:var(--brass)}
.hero .eyebrow{color:rgba(200,162,74,.9)}
.hero-sub{margin-top:22px;font-size:17px;line-height:1.9;color:rgba(239,235,227,.82);max-width:560px}
.hero-facts{margin-top:30px;display:flex;flex-wrap:wrap;gap:10px 26px;font-size:13px;color:rgba(239,235,227,.66)}
.hero-facts span{display:flex;align-items:center;gap:8px}
.dot{width:5px;height:5px;border-radius:50%;background:var(--brass);display:inline-block}
.hero-figure{position:relative;border:1px solid rgba(255,255,255,.16);border-radius:var(--radius);overflow:hidden;background:var(--dark)}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0}
.hero-figure figcaption{
  padding:14px 18px;font-size:13px;color:rgba(239,235,227,.72);
  border-top:1px solid rgba(255,255,255,.16);
}

/* ============ 内容块：引言 + 要点 ============ */
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.intro-grid p{color:var(--muted);line-height:1.9}
.intro-facts{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--border);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.intro-facts div{background:var(--white);padding:22px 20px}
.intro-facts b{display:block;font-family:var(--font-serif);font-size:26px;color:var(--green);font-weight:700}
.intro-facts span{font-size:13px;color:var(--muted);letter-spacing:.02em}

/* ============ 时间轴（左线右内容） ============ */
.timeline{position:relative;margin-top:12px}
.timeline::before{
  content:"";position:absolute;left:27px;top:10px;bottom:20px;width:2px;
  background:linear-gradient(180deg,var(--brass),rgba(220,214,202,.9));
}
.tl-item{position:relative;padding-left:84px;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-node{
  position:absolute;left:0;top:0;width:56px;height:56px;border-radius:50%;
  background:var(--white);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);font-size:19px;font-weight:700;color:var(--brass);
  box-shadow:var(--shadow-1);
}
.tl-body{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:22px 26px;transition:transform .24s ease,box-shadow .24s ease}
.tl-body:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.tl-body h3{font-family:var(--font-serif);font-size:21px;font-weight:700;margin-bottom:8px}
.tl-body p{color:var(--muted);font-size:15.5px;line-height:1.85}
.tl-meta{margin-top:12px;font-size:13px;color:var(--green-3);letter-spacing:.04em}

/* ============ 服务范围卡片 ============ */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 24px;transition:transform .24s ease,box-shadow .24s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.card h3{font-family:var(--font-serif);font-size:19px;font-weight:700;margin:14px 0 10px}
.card p{font-size:14.5px;color:var(--muted);line-height:1.85}
.badge{
  display:inline-block;padding:3px 11px;border-radius:999px;
  border:1px solid var(--brass);color:var(--green);font-size:12px;letter-spacing:.08em;
  background:rgba(200,162,74,.08);
}
.card-no{
  font-family:var(--font-serif);font-size:15px;color:var(--brass);letter-spacing:.14em;
}

/* ============ 图片行 ============ */
.media-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.media-row img{width:100%;aspect-ratio:16/10;object-fit:cover;border:1px solid var(--border)}
.check-list{margin-top:22px;display:flex;flex-direction:column;gap:14px}
.check-list li{position:relative;padding-left:28px;font-size:15.5px;line-height:1.8;color:var(--text)}
.check-list li::before{
  content:"";position:absolute;left:0;top:.6em;width:12px;height:2px;background:var(--brass);
}

/* ============ 数据条 ============ */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--border);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.stat{background:var(--white);padding:34px 26px;text-align:left}
.stat b{display:block;font-family:var(--font-serif);font-size:40px;font-weight:700;color:var(--brass);line-height:1.1}
.stat span{display:block;margin-top:10px;font-size:14px;color:var(--muted)}

/* ============ FAQ ============ */
.faq{margin-top:8px;border-top:1px solid var(--border)}
.faq details{border-bottom:1px solid var(--border)}
.faq summary{
  list-style:none;min-height:56px;display:flex;align-items:center;gap:18px;
  padding:14px 0;cursor:pointer;
}
.faq summary::-webkit-details-marker{display:none}
.faq .q-no{font-family:var(--font-serif);color:var(--brass);font-size:15px;letter-spacing:.1em;flex:0 0 34px}
.faq .q-text{flex:1;font-size:16.5px;font-weight:500}
.faq .q-toggle{
  position:relative;width:18px;height:18px;flex:0 0 18px;transition:transform .24s ease;transform:rotate(0deg);
}
.faq .q-toggle::before,.faq .q-toggle::after{
  content:"";position:absolute;background:var(--green);border-radius:1px;
}
.faq .q-toggle::before{left:0;top:8px;width:18px;height:2px}
.faq .q-toggle::after{left:8px;top:0;width:2px;height:18px}
.faq details[open] .q-toggle{transform:rotate(90deg)}
.faq .a-body{padding:0 0 24px 52px;color:var(--muted);font-size:15.5px;line-height:1.9}

/* ============ 订阅 / CTA ============ */
.cta{padding:80px 0}
.cta-box{
  border:1px solid rgba(200,162,74,.4);border-radius:var(--radius);
  padding:52px;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
  background:rgba(255,255,255,.03);
}
.cta-box h2{font-family:var(--font-serif);font-size:32px;font-weight:700;line-height:1.35;color:#F7F5F0}
.cta-box p{margin-top:16px;color:rgba(239,235,227,.74);font-size:15.5px;line-height:1.9}
.sub-form{display:flex;gap:10px;margin-top:22px}
.sub-form input{
  flex:1;min-height:48px;padding:0 16px;border-radius:var(--radius);
  border:1px solid rgba(239,235,227,.28);background:rgba(255,255,255,.04);
  color:#F7F5F0;font-size:15px;font-family:inherit;transition:border-color .2s ease,box-shadow .2s ease;
}
.sub-form input::placeholder{color:rgba(239,235,227,.4)}
.sub-form input:focus{outline:none;border-color:var(--brass);box-shadow:0 0 0 3px rgba(200,162,74,.18)}
.form-msg{margin-top:10px;font-size:13.5px;min-height:20px}
.form-msg.err{color:#E8A392}
.form-msg.ok{color:#8FC7A8}

/* ============ 双按钮返回区 ============ */
.back-links{
  display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;
  padding:32px 0 0;border-top:1px solid var(--border);
}
.back-links .hint{font-size:14px;color:var(--muted)}

/* ============ 页脚 ============ */
.footer{background:var(--dark);color:rgba(239,235,227,.74);padding:72px 0 28px;font-size:14.5px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:0}
.foot-col{padding:0 30px;border-left:1px solid rgba(255,255,255,.12)}
.foot-col:first-child{padding-left:0;border-left:0}
.foot-col:last-child{padding-right:0}
.foot-brand{display:flex;align-items:center;gap:10px;font-family:var(--font-serif);font-size:18px;color:#F7F5F0;margin-bottom:16px}
.foot-text{color:rgba(239,235,227,.66);line-height:1.9;font-size:14px}
.foot-title{font-size:15px;color:#F7F5F0;font-family:var(--font-serif);margin-bottom:16px;font-weight:700}
.foot-links{display:flex;flex-direction:column;gap:11px}
.foot-links a,.foot-info li{color:rgba(239,235,227,.68);transition:color .2s ease}
.foot-links a:hover{color:var(--brass)}
.foot-info{display:flex;flex-direction:column;gap:11px}
.foot-bottom{
  margin-top:56px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(239,235,227,.56);
}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease}
.reveal.in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--sidebar-w:76px}
  .nav-label{display:none}
  .nav-tip{display:block}
  .side-brand-text{display:none}
  .side-brand{width:52px}
  .nav-item{width:58px}
}
@media (max-width:1023px){
  :root{--sidebar-w:0px}
  .side-menu{display:none}
  .mobile-bar{display:flex}
  .main{margin-left:0}
  .container{padding:0 24px}
  .section{padding:64px 0}
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:44px 0 56px}
  .hero h1{font-size:34px}
  .hero h1::before{height:26px}
  .h2{font-size:26px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .intro-grid{grid-template-columns:1fr;gap:36px}
  .cta-box{grid-template-columns:1fr;padding:36px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px 0}
  .foot-col{border-left:0;padding:0}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:52px 0}
  .hero h1{font-size:30px}
  .h2{font-size:24px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:30px}
  .grid-4,.grid-3{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
  .media-row{grid-template-columns:1fr;gap:28px}
  .timeline::before{left:20px}
  .tl-item{padding-left:62px}
  .tl-node{width:42px;height:42px;font-size:15px}
  .tl-body{padding:18px 20px}
  .faq .a-body{padding-left:0}
  .faq .q-no{flex:0 0 28px}
  .sub-form{flex-direction:column}
  .sub-form .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:30px 0}
  .foot-bottom{flex-direction:column;gap:8px}
  .back-links{flex-direction:column;align-items:flex-start}
  .hero-facts{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important}
  .reveal{opacity:1;transform:none}
}