/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --ink:#14110F;
  --ink-soft:#3A3532;
  --paper:#F7F4EF;
  --paper-2:#FFFDFA;
  --line:#E3DCD2;
  --accent:#D9481F;
  --accent-press:#B73A16;
  --jade:#1E6B5B;
  --mist:#EDE7DE;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(20,17,15,.05);
  --shadow-2:0 12px 32px -16px rgba(20,17,15,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-w:244px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background-color:var(--paper);
  background-image:
    linear-gradient(rgba(20,17,15,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(20,17,15,.025) 1px,transparent 1px);
  background-size:44px 44px,44px 44px;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
a:hover{color:var(--accent)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:700;letter-spacing:-.02em;margin:0;color:var(--ink)}
h1{font-size:clamp(30px,3.6vw,46px);line-height:1.25}
h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3}
h3{font-size:20px;line-height:1.45}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 18px;border-radius:0 0 10px 0;z-index:200}
.skip-link:focus{left:0}
/* ============ 布局容器 ============ */
.page-wrap{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--mist{background:var(--mist);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:48px}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);font-weight:600;margin-bottom:14px;
}
.kicker::before{content:"";width:22px;height:1px;background:var(--accent);display:inline-block}
.section-desc{margin-top:16px;color:var(--ink-soft);font-size:16px;max-width:64ch}
/* ============ 左侧竖向导航 ============ */
.sidenav{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  background:var(--paper-2);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:26px 18px 22px;
  overflow-y:auto;z-index:80;
}
.brand{display:block;padding:4px 6px 22px;border-bottom:1px solid var(--line)}
.brand-mark{
  font-family:var(--font-serif);font-size:20px;font-weight:700;
  letter-spacing:.06em;display:block;line-height:1.3;color:var(--ink);
}
.brand-mark em{font-style:normal;color:var(--accent)}
.brand-sub{
  display:block;margin-top:6px;font-size:12px;letter-spacing:.24em;
  color:var(--ink-soft);text-transform:uppercase;
}
.brand:hover .brand-mark{color:var(--accent)}
.nav-group{margin-top:26px}
.nav-label{
  font-size:11px;letter-spacing:.2em;color:#9A9archived;color:#9A938B;
  padding:0 8px 10px;text-transform:uppercase;
}
.nav-item{
  position:relative;display:block;padding:11px 14px;margin-bottom:4px;
  border-radius:8px;font-size:15px;color:var(--ink-soft);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;background:var(--accent);border-radius:2px;
  transition:height .22s var(--ease);
}
.nav-item:hover{background:var(--mist);color:var(--ink)}
.nav-item:hover::before{height:58%}
.nav-item.active{background:var(--mist);color:var(--ink);font-weight:600}
.nav-item.active::before{height:58%}
.nav-foot{margin-top:auto;padding-top:22px}
.side-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:46px;border-radius:var(--radius-btn);background:var(--accent);color:#fff;
  font-size:14px;font-weight:600;transition:background .2s var(--ease),transform .2s var(--ease);
}
.side-cta:hover{background:var(--accent-press);color:#fff;transform:translateY(-1px)}
.side-note{margin-top:14px;font-size:12px;line-height:1.7;color:#8C857D;padding:0 4px}
/* ============ 移动端顶栏与抽屉 ============ */
.topbar{
  display:none;position:sticky;top:0;z-index:90;
  height:62px;align-items:center;justify-content:space-between;
  padding:0 20px;background:rgba(255,253,250,.94);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line);
}
.topbar .brand{padding:0;border:none}
.topbar .brand-mark{font-size:17px}
.burger{
  width:42px;height:42px;border:1px solid var(--line);border-radius:10px;
  background:var(--paper-2);display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.burger span{display:block;width:18px;height:1.6px;background:var(--ink);transition:transform .22s var(--ease),opacity .22s var(--ease)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6.6px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,17,15,.5);opacity:0;visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);z-index:95;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:286px;max-width:84vw;
  background:var(--paper-2);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .28s var(--ease);
  z-index:100;padding:26px 20px;overflow-y:auto;display:flex;flex-direction:column;
}
.drawer.open{transform:translateX(0)}
.drawer .nav-item{font-size:16px;padding:13px 14px}
.drawer-close{
  align-self:flex-end;width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  background:transparent;cursor:pointer;font-size:18px;line-height:1;color:var(--ink-soft);
}
.drawer-close:hover{border-color:var(--ink);color:var(--ink)}
/* ============ 倒计时条 ============ */
.ticker{background:var(--ink);color:#F3EFE9}
.ticker-inner{
  max-width:1200px;margin:0 auto;padding:0 40px;min-height:48px;
  display:flex;align-items:center;gap:20px;flex-wrap:wrap;
}
.ticker-tag{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;letter-spacing:.08em;
  color:#CFC7BD;padding:11px 0;
}
.ticker-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px rgba(217,72,31,.22)}
.ticker-time{
  font-family:var(--font-sans);font-variant-numeric:tabular-nums;
  font-weight:700;font-size:17px;letter-spacing:.06em;color:var(--accent);
  display:inline-flex;align-items:center;padding:11px 0;
}
.ticker-time i{font-style:normal;opacity:.5;margin:0 3px}
.ticker-link{
  margin-left:auto;font-size:13px;color:#CFC7BD;border-bottom:1px solid rgba(207,199,189,.35);
  padding-bottom:2px;transition:color .2s var(--ease),border-color .2s var(--ease);
}
.ticker-link:hover{color:#fff;border-color:#fff}
/* ============ Hero ============ */
.hero{padding:88px 0 72px}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero h1{max-width:19em}
.hero h1 .hl{color:var(--accent)}
.hero-sub{
  margin-top:22px;font-size:17px;color:var(--ink-soft);line-height:1.9;
  max-width:34em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),
             border-color .22s var(--ease),transform .22s var(--ease);
}
.btn .arw{transition:transform .22s var(--ease)}
.btn:hover .arw{transform:translateX(4px)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-press);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);color:var(--ink)}
.btn-block{width:100%}
.btn[disabled]{opacity:.6;cursor:not-allowed;filter:saturate(.6)}
.hero-media{position:relative}
.hero-figure{
  position:relative;margin:0;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);background:var(--paper-2);box-shadow:var(--shadow-1);
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease)}
.hero-figure:hover img{transform:scale(1.03)}
.media-chip{
  position:absolute;left:14px;bottom:14px;right:14px;
  background:rgba(20,17,15,.82);color:#F3EFE9;border-radius:10px;
  padding:10px 14px;font-size:13px;line-height:1.6;
  display:flex;align-items:center;gap:10px;backdrop-filter:blur(4px);
}
.media-chip b{color:var(--accent);font-variant-numeric:tabular-nums}
/* ============ 卖点 bento ============ */
.points{
  display:grid;grid-template-columns:repeat(12,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;
}
.point{background:var(--paper-2);padding:34px 30px;transition:background .22s var(--ease)}
.point:hover{background:#FBF8F3}
.point:nth-child(1){grid-column:span 7}
.point:nth-child(2){grid-column:span 5}
.point:nth-child(3){grid-column:span 5}
.point:nth-child(4){grid-column:span 7}
.point-num{
  font-family:var(--font-serif);font-size:34px;font-weight:700;line-height:1;
  color:#D6CEC3;letter-spacing:.02em;display:block;margin-bottom:18px;
}
.point h3{font-size:19px;margin-bottom:10px}
.point p{font-size:15px;color:var(--ink-soft);line-height:1.85}
/* ============ 图墙 ============ */
.gallery{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}
.g-item{
  position:relative;margin:0;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid transparent;background:var(--paper-2);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.g-item:hover{transform:translateY(-2px);border-color:var(--line);box-shadow:var(--shadow-2)}
.g-item img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.g-item:hover img{transform:scale(1.04)}
.g1{grid-column:span 4}
.g1 img{aspect-ratio:16/9}
.g2{grid-column:span 2}
.g2 img{aspect-ratio:16/9}
.g3{grid-column:span 2}
.g3 img{aspect-ratio:4/3}
.g4{grid-column:span 2}
.g4 img{aspect-ratio:4/3}
.g5{grid-column:span 2}
.g5 img{aspect-ratio:4/3}
.g-cap{
  padding:12px 16px 14px;font-size:13px;color:var(--ink-soft);line-height:1.6;
  border-top:1px solid var(--line);background:var(--paper-2);
}
/* ============ CTA 报名区 ============ */
.cta-band{background:var(--ink);color:#F3EFE9}
.cta-band h2,.cta-band h3{color:#fff}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.cta-lead{font-family:var(--font-serif);font-size:clamp(26px,3vw,36px);line-height:1.35;color:#fff;letter-spacing:-.02em}
.cta-lead em{font-style:normal;color:var(--accent)}
.cta-note{margin-top:18px;font-size:15px;color:#BEB6AC;line-height:1.9;max-width:36ch}
.cta-facts{margin-top:28px;display:flex;gap:36px;flex-wrap:wrap}
.cta-fact b{
  display:block;font-size:24px;font-variant-numeric:tabular-nums;color:var(--accent);
  font-family:var(--font-sans);font-weight:700;
}
.cta-fact span{font-size:13px;color:#9C948B}
.cta-form{
  background:rgba(255,253,250,.05);border:1px solid rgba(227,220,210,.18);
  border-radius:var(--radius-card);padding:30px 28px;
}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:#BEB6AC;margin-bottom:8px;letter-spacing:.04em}
.field input{
  width:100%;height:48px;padding:0 15px;border-radius:var(--radius-btn);
  background:rgba(255,253,250,.96);border:1px solid transparent;color:var(--ink);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input::placeholder{color:#A79F96}
.field input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px rgba(217,72,31,.35)}
.field.error input{border-color:var(--accent);box-shadow:0 0 0 2px rgba(217,72,31,.35)}
.field .err{display:none;margin-top:7px;font-size:12.5px;color:#FF8A62}
.field.error .err{display:block}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:#BEB6AC;margin:4px 0 20px;line-height:1.7}
.check input{margin-top:4px;width:16px;height:16px;accent-color:var(--accent);flex:0 0 auto}
.form-note{margin-top:14px;font-size:13px;min-height:20px;line-height:1.7}
.form-note.ok{color:#6FD6B4}
.form-note.bad{color:#FF8A62}
/* ============ FAQ ============ */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;gap:18px;
  background:transparent;border:none;text-align:left;cursor:pointer;
  padding:10px 6px;transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--accent)}
.faq-no{
  font-variant-numeric:tabular-nums;font-size:13px;color:var(--accent);
  font-weight:700;letter-spacing:.08em;flex:0 0 34px;
}
.faq-text{flex:1;font-size:17px;font-weight:500;color:inherit}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform .22s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink-soft);
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:1.6px}
.faq-icon::after{width:1.6px;height:14px}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a-inner{
  padding:2px 60px 26px 58px;color:var(--ink-soft);font-size:15.5px;
  line-height:1.95;max-width:72ch;
}
/* ============ 最新信息列表 ============ */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.news-list{border-top:1px solid var(--line)}
.news-row{border-bottom:1px solid var(--line)}
.news-link{
  display:grid;grid-template-columns:126px 108px 1fr 30px;gap:20px;
  align-items:center;padding:22px 12px;transition:background .22s var(--ease),padding-left .22s var(--ease);
}
.news-link:hover{background:var(--paper-2);color:inherit;padding-left:18px}
.news-date{
  font-variant-numeric:tabular-nums;font-size:13.5px;color:#8C857D;
  letter-spacing:.02em;white-space:nowrap;
}
.badge{
  display:inline-flex;align-items:center;justify-content:center;
  height:24px;padding:0 12px;border-radius:999px;font-size:12px;
  background:rgba(30,107,91,.1);color:var(--jade);font-weight:600;
  letter-spacing:.02em;white-space:nowrap;max-width:100%;overflow:hidden;text-overflow:ellipsis;
}
.news-body{min-width:0}
.news-title{
  display:block;font-family:var(--font-serif);font-size:18px;font-weight:600;
  line-height:1.5;color:var(--ink);transition:color .2s var(--ease);
}
.news-link:hover .news-title{color:var(--accent)}
.news-sum{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-top:6px;font-size:14px;color:var(--ink-soft);line-height:1.8;
}
.news-arrow{font-size:17px;color:#B8AFA5;transition:transform .22s var(--ease),color .22s var(--ease);text-align:right}
.news-link:hover .news-arrow{transform:translateX(4px);color:var(--accent)}
.news-empty{
  display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:64px 24px;border:1px dashed var(--line);border-radius:var(--radius-card);
  background:var(--paper-2);text-align:center;
}
.news-empty .ico{
  width:42px;height:42px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--accent);font-size:18px;
}
.news-empty p{color:var(--ink-soft);font-size:15px}
.news-empty a{color:var(--accent);font-weight:600;border-bottom:1px solid currentColor;padding-bottom:2px}
/* ============ 页脚 ============ */
.foot{background:var(--paper-2);border-top:1px solid var(--line);margin-top:auto}
.foot-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;
  padding:64px 0 44px;
}
.foot-brand{font-family:var(--font-serif);font-size:19px;font-weight:700;letter-spacing:.04em}
.foot-brand em{font-style:normal;color:var(--accent)}
.foot-desc{margin-top:14px;font-size:14px;color:var(--ink-soft);line-height:1.9;max-width:30ch}
.foot-col h4{font-size:14px;letter-spacing:.1em;color:var(--ink);margin-bottom:16px;font-family:var(--font-sans);font-weight:600}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:14px;color:var(--ink-soft);transition:color .2s var(--ease)}
.foot-col a:hover{color:var(--accent)}
.foot-col p{font-size:14px;color:var(--ink-soft);line-height:1.9}
.foot-bottom{
  border-top:1px solid var(--line);padding:20px 0 28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:#8C857D;
}
/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.reveal.in{opacity:1;transform:none}
.hero h1 .line{display:block;overflow:hidden}
.hero h1 .line > span{display:block;transform:translateY(105%);animation:lineUp .32s var(--ease) forwards}
.hero h1 .line:nth-child(2) > span{animation-delay:.09s}
@keyframes lineUp{to{transform:translateY(0)}}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  .hero h1 .line > span{transform:none}
}
/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--nav-w:200px}
  .container{padding:0 32px}
  .hero-grid{gap:40px}
  .cta-grid{gap:44px}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px}
  .foot-col:last-child{grid-column:span 3}
}
@media (max-width:1023px){
  .sidenav{display:none}
  .topbar{display:flex}
  .page-wrap{margin-left:0}
  .container{padding:0 28px}
  .ticker-inner{padding:0 28px;gap:14px}
  .ticker-link{margin-left:0}
  .hero{padding:64px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .points{grid-template-columns:repeat(6,1fr)}
  .point:nth-child(1),.point:nth-child(2),
  .point:nth-child(3),.point:nth-child(4){grid-column:span 6}
  .gallery{grid-template-columns:repeat(4,1fr)}
  .g1{grid-column:span 4}
  .g2{grid-column:span 4}
  .g3,.g4,.g5{grid-column:span 2}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .news-link{grid-template-columns:112px 1fr 26px;grid-template-areas:"date body arrow" "badge body arrow";row-gap:8px}
  .news-date{grid-area:date}
  .badge{grid-area:badge;justify-self:start}
  .news-body{grid-area:body}
  .news-arrow{grid-area:arrow;align-self:center}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .foot-col:last-child{grid-column:span 2}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 20px}
  .ticker-inner{padding:0 20px;min-height:auto;padding-top:9px;padding-bottom:9px}
  .ticker-tag{font-size:12px;padding:0}
  .ticker-time{font-size:15px;padding:0}
  .ticker-link{font-size:12px;width:100%;margin-bottom:2px}
  .hero{padding:48px 0 44px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .section{padding:56px 0}
  .section--tight{padding:44px 0}
  .section-head{margin-bottom:32px}
  .point{padding:26px 22px}
  .point-num{font-size:28px;margin-bottom:14px}
  .gallery{grid-template-columns:1fr;gap:14px}
  .g1,.g2,.g3,.g4,.g5{grid-column:span 1}
  .cta-form{padding:24px 20px}
  .faq-a-inner{padding:2px 8px 22px 52px}
  .faq-text{font-size:15.5px}
  .news-link{grid-template-columns:1fr 26px;grid-template-areas:"date arrow" "badge arrow" "body body";row-gap:10px;padding:20px 6px}
  .news-link:hover{padding-left:6px}
  .news-arrow{align-self:start;margin-top:2px}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 32px}
  .foot-col:last-child{grid-column:span 1}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .hero h1{font-size:clamp(26px,7.4vw,34px)}
  .cta-lead{font-size:24px}
  .point h3{font-size:17.5px}
  .news-title{font-size:16.5px}
}

/* roulang page: article */
:root{
  --ink:#14110F;
  --ink-soft:#3A3532;
  --paper:#F7F4EF;
  --paper-2:#FFFDFA;
  --line:#E3DCD2;
  --accent:#D9481F;
  --accent-press:#B73A16;
  --jade:#1E6B5B;
  --mist:#EDE7DE;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(20,17,15,.05);
  --shadow-2:0 12px 32px -16px rgba(20,17,15,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --side-w:236px;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background-color:var(--paper);
  background-image:linear-gradient(rgba(20,17,15,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(20,17,15,.028) 1px,transparent 1px);
  background-size:32px 32px;
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--accent);}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;letter-spacing:-.02em;margin:0;line-height:1.3;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;}

/* ============ 左侧竖向导航 ============ */
.sidenav{
  position:fixed;left:0;top:0;bottom:0;width:var(--side-w);
  background:var(--paper-2);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:28px 18px 20px;
  overflow-y:auto;z-index:60;
}
.brand{display:block;padding:0 8px 22px;border-bottom:1px solid var(--line);}
.brand-mark{
  display:block;font-family:var(--serif);font-weight:700;font-size:21px;line-height:1.3;letter-spacing:-.02em;
}
.brand-mark em{font-style:normal;color:var(--accent);}
.brand-sub{
  display:block;margin-top:6px;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:#8C837B;
}
.nav-group{margin-top:24px;}
.nav-label{
  font-size:11px;letter-spacing:.18em;color:#9A918A;text-transform:uppercase;padding:0 10px 10px;
}
.nav-item{
  position:relative;display:block;padding:11px 14px;margin-bottom:2px;border-radius:10px;
  font-size:15px;color:var(--ink-soft);transition:background .18s var(--ease),color .18s var(--ease);
}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;background:var(--accent);border-radius:2px;transition:height .24s var(--ease);
}
.nav-item:hover{background:var(--mist);color:var(--ink);}
.nav-item:hover::before{height:60%;}
.nav-item.active{background:var(--mist);color:var(--ink);font-weight:700;}
.nav-item.active::before{height:64%;}
.nav-foot{margin-top:auto;padding-top:26px;}
.side-cta{
  display:block;text-align:center;background:var(--accent);color:#fff;font-weight:500;font-size:15px;
  padding:12px 16px;border-radius:var(--radius-btn);box-shadow:var(--shadow-1);
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.side-cta:hover{background:var(--accent-press);color:#fff;transform:translateY(-1px);}
.side-note{margin-top:14px;font-size:12px;line-height:1.75;color:#8C837B;padding:0 6px;}

/* ============ 移动端顶栏与抽屉 ============ */
.mobile-topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:62px;z-index:70;
  background:rgba(255,253,250,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;padding:0 18px;
}
.mobile-topbar .m-brand{font-family:var(--serif);font-weight:700;font-size:17px;}
.mobile-topbar .m-brand em{font-style:normal;color:var(--accent);}
.hamburger{
  width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:var(--paper-2);
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .24s var(--ease),opacity .24s var(--ease);}
.drawer-mask{
  display:none;position:fixed;inset:0;background:rgba(20,17,15,.5);z-index:55;opacity:0;transition:opacity .24s var(--ease);
}
body.drawer-open .drawer-mask{opacity:1;}

/* ============ 主内容壳 ============ */
.shell{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column;}
.main{flex:1;padding:44px 0 0;}
.page{max-width:1140px;margin:0 auto;padding:0 clamp(20px,4vw,56px);}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:#8C837B;}
.breadcrumb a{color:#8C837B;}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .now{color:var(--ink-soft);}

/* ============ 文章头 ============ */
.post-head{margin-top:26px;padding-bottom:30px;border-bottom:1px solid var(--line);}
.badge{
  display:inline-block;padding:5px 13px;border-radius:999px;background:rgba(30,107,91,.1);
  color:var(--jade);font-size:12.5px;font-weight:500;letter-spacing:.04em;
}
.post-title{
  margin-top:18px;font-size:clamp(30px,3.6vw,46px);line-height:1.25;max-width:22em;
}
.post-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:18px;font-size:13.5px;color:#8C837B;
}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line);}
.post-lead{
  margin-top:20px;font-size:16.5px;line-height:1.9;color:var(--ink-soft);max-width:74ch;
}

/* ============ 文章布局 ============ */
.post-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:56px;padding:44px 0 72px;}
@media (min-width:1280px){
  .post-layout{grid-template-columns:minmax(0,1fr) 224px;}
}
.post-aside{display:none;}
@media (min-width:1280px){
  .post-aside{display:block;}
  .toc-box{position:sticky;top:36px;}
}
.toc-title{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:#9A918A;margin-bottom:14px;}
.toc-list a{
  display:block;font-size:13.5px;line-height:1.6;color:var(--ink-soft);
  padding:7px 0 7px 12px;border-left:1px solid var(--line);transition:all .18s var(--ease);
}
.toc-list a:hover,.toc-list a.is-active{color:var(--accent);border-left-color:var(--accent);}
.toc-list a.lv3{padding-left:26px;font-size:13px;color:#8C837B;}
.toc-empty{font-size:13px;color:#9A918A;padding-left:12px;border-left:1px solid var(--line);}
.toc-mobile{
  display:block;margin-bottom:28px;border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--paper-2);padding:14px 18px;
}
@media (min-width:1280px){.toc-mobile{display:none;}}
.toc-mobile summary{cursor:pointer;font-size:14px;font-weight:500;color:var(--ink-soft);list-style:none;}
.toc-mobile summary::-webkit-details-marker{display:none;}
.toc-mobile[open] summary{color:var(--accent);margin-bottom:10px;}

/* ============ 正文排版 ============ */
.article-body{max-width:76ch;font-size:17px;line-height:1.9;color:var(--ink-soft);}
.article-body > * + *{margin-top:22px;}
.article-body h2{
  font-size:clamp(22px,2.4vw,29px);line-height:1.35;margin-top:52px;color:var(--ink);
  padding-left:14px;border-left:3px solid var(--accent);
}
.article-body h3{font-size:20px;line-height:1.45;margin-top:36px;color:var(--ink);}
.article-body h4{font-size:17.5px;margin-top:28px;color:var(--ink);}
.article-body p{color:var(--ink-soft);}
.article-body strong{color:var(--ink);font-weight:700;}
.article-body a{color:var(--accent);border-bottom:1px solid rgba(217,72,31,.35);}
.article-body a:hover{color:var(--accent-press);border-bottom-color:var(--accent-press);}
.article-body ul,.article-body ol{padding-left:22px;}
.article-body ul{list-style:none;padding-left:20px;}
.article-body ul li{position:relative;padding-left:16px;margin:10px 0;}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.78em;width:6px;height:6px;border-radius:50%;
  background:var(--accent);opacity:.75;
}
.article-body ol{list-style:decimal;}
.article-body ol li{margin:10px 0;padding-left:6px;}
.article-body ol li::marker{color:var(--accent);font-weight:700;}
.article-body blockquote{
  margin:30px 0;padding:20px 24px;background:var(--paper-2);border-left:3px solid var(--accent);
  border-radius:0 var(--radius-card) var(--radius-card) 0;color:var(--ink-soft);
}
.article-body blockquote p{color:var(--ink-soft);}
.article-body figure{margin:32px 0;}
.article-body figure img{border-radius:var(--radius-img);box-shadow:var(--shadow-1);width:100%;}
.article-body figcaption{margin-top:12px;text-align:center;font-size:13px;color:#8C837B;}
.article-body table{width:100%;border-collapse:collapse;margin:28px 0;font-size:15px;display:block;overflow-x:auto;}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;white-space:nowrap;}
.article-body th{background:var(--mist);font-weight:700;color:var(--ink);}
.article-body code{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;font-size:14.5px;
  background:var(--mist);padding:2px 6px;border-radius:6px;color:var(--ink);
}
.article-body pre{
  background:var(--mist);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px 20px;overflow-x:auto;font-size:14.5px;line-height:1.7;
}
.article-body pre code{background:none;padding:0;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:40px 0;}

/* ============ 空态 ============ */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);background:var(--paper-2);
  padding:64px 32px;text-align:center;max-width:640px;
}
.empty-icon{
  width:52px;height:52px;margin:0 auto 18px;border-radius:50%;background:var(--mist);
  display:flex;align-items:center;justify-content:center;color:var(--accent);font-size:24px;
}
.empty-state h2{font-size:22px;}
.empty-state p{margin-top:12px;color:var(--ink-soft);font-size:15.5px;}
.empty-state .btn-primary{margin-top:26px;}

/* ============ 按钮 ============ */
.btn-primary,.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:500;cursor:pointer;border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn-primary{background:var(--accent);color:#fff;position:relative;overflow:hidden;z-index:1;}
.btn-primary::after{
  content:"";position:absolute;inset:0;background:var(--accent-press);
  transform:translateX(-101%);transition:transform .3s var(--ease);z-index:-1;
}
.btn-primary:hover{color:#fff;transform:translateY(-1px);}
.btn-primary:hover::after{transform:translateX(0);}
.btn-primary .arw{transition:transform .24s var(--ease);}
.btn-primary:hover .arw{transform:translateX(4px);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);}

/* ============ 文章尾部 ============ */
.post-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:48px;padding-top:26px;border-top:1px solid var(--line);}
.tag{
  display:inline-block;padding:6px 14px;border-radius:999px;border:1px solid var(--line);
  background:var(--paper-2);font-size:13px;color:var(--ink-soft);transition:all .18s var(--ease);
}
.tag:hover{border-color:var(--accent);color:var(--accent);}
.post-foot{
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
  margin-top:26px;
}
.back-link{font-size:14.5px;color:var(--ink-soft);display:inline-flex;align-items:center;gap:8px;}
.back-link:hover{color:var(--accent);}

/* ============ 相关推荐 ============ */
.related{margin-top:78px;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;}
.sec-head h2{font-size:clamp(22px,2.4vw,30px);}
.sec-head p{margin-top:8px;font-size:14.5px;color:#8C837B;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--paper-2);
  overflow:hidden;box-shadow:var(--shadow-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D6CCBE;}
.rel-thumb{overflow:hidden;aspect-ratio:4/3;background:var(--mist);}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-body{padding:20px 22px 22px;}
.rel-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:#8C837B;margin-bottom:10px;}
.rel-body h3{font-size:17px;line-height:1.5;margin-bottom:10px;}
.rel-body p{font-size:14px;line-height:1.75;color:#7A726B;}
.rel-more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13.5px;color:var(--accent);}

/* ============ 页底 CTA ============ */
.cta-band{
  margin-top:84px;background:var(--ink);color:#fff;border-radius:var(--radius-card);
  padding:48px clamp(24px,4vw,56px);display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,32px);}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.7);font-size:15px;max-width:52ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.35);color:#fff;}
.cta-band .btn-ghost:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08);}

/* ============ 页脚 ============ */
.foot{background:var(--mist);border-top:1px solid var(--line);margin-top:96px;padding:56px 0 26px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;}
.foot-brand{font-family:var(--serif);font-size:19px;font-weight:700;}
.foot-brand em{font-style:normal;color:var(--accent);}
.foot-desc{margin-top:12px;font-size:14px;line-height:1.8;color:#6E665F;max-width:34ch;}
.foot-col h4{font-size:14.5px;margin-bottom:16px;color:var(--ink);}
.foot-col ul li{margin-bottom:10px;}
.foot-col a{font-size:14px;color:#6E665F;}
.foot-col a:hover{color:var(--accent);}
.foot-col p{font-size:14px;color:#6E665F;margin-bottom:10px;line-height:1.8;}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid #DCD4C8;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#7A726B;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--side-w:200px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:1023px){
  .sidenav{
    transform:translateX(-100%);transition:transform .26s var(--ease);
    width:280px;box-shadow:var(--shadow-2);
  }
  body.drawer-open .sidenav{transform:translateX(0);}
  .mobile-topbar{display:flex;}
  .drawer-mask{display:block;pointer-events:none;}
  body.drawer-open .drawer-mask{pointer-events:auto;}
  .shell{margin-left:0;padding-top:62px;}
  .main{padding-top:28px;}
  .post-layout{padding:34px 0 56px;gap:0;}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .container{padding:0 20px;}
  .page{padding:0 20px;}
  .post-title{font-size:clamp(25px,6.4vw,32px);}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:21px;margin-top:40px;}
  .article-body h3{font-size:18.5px;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:34px 22px;border-radius:12px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-primary,.cta-actions .btn-ghost{width:100%;justify-content:center;}
  .foot{margin-top:64px;padding-top:44px;}
  .foot-grid{grid-template-columns:minmax(0,1fr);gap:26px;}
  .foot-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:519px){
  .brand-mark{font-size:19px;}
  .post-meta{font-size:13px;gap:9px;}
  .btn-primary,.btn-ghost{padding:12px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category1 */
:root{
  --ink:#14110F;
  --ink-soft:#3A3532;
  --paper:#F7F4EF;
  --paper-2:#FFFDFA;
  --line:#E3DCD2;
  --accent:#D9481F;
  --accent-press:#B73A16;
  --jade:#1E6B5B;
  --mist:#EDE7DE;
  --nav-w:248px;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-1:0 1px 2px rgba(20,17,15,.05);
  --shadow-2:0 12px 32px -16px rgba(20,17,15,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background-color:var(--paper);
  background-image:
    radial-gradient(1200px 620px at 88% -8%, rgba(30,107,91,.035), transparent 62%),
    radial-gradient(900px 520px at -6% 12%, rgba(217,72,31,.035), transparent 60%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(to right, rgba(20,17,15,.028) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(20,17,15,.028) 1px, transparent 1px);
  background-size:52px 52px;
}
img,figure{margin:0;max-width:100%}
img{display:block;height:auto}
a{color:var(--ink);text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
::selection{background:rgba(217,72,31,.16)}

/* ===== 侧栏导航 ===== */
.sidenav{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--nav-w);
  z-index:60;
  display:flex;
  flex-direction:column;
  gap:26px;
  padding:26px 20px 22px;
  background:var(--paper-2);
  border-right:1px solid var(--line);
  overflow-y:auto;
}
.brand{
  display:flex;
  flex-direction:column;
  gap:6px;
  padding-bottom:20px;
  border-bottom:1px solid var(--line);
}
.brand-mark{
  font-family:var(--serif);
  font-weight:700;
  font-size:20px;
  line-height:1.35;
  letter-spacing:-.02em;
  color:var(--ink);
}
.brand-mark em{font-style:normal;color:var(--accent)}
.brand-sub{
  font-size:11px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--ink-soft);
  opacity:.72;
}
.nav-group{display:flex;flex-direction:column;gap:3px}
.nav-label{
  font-size:12px;
  letter-spacing:.16em;
  color:var(--ink-soft);
  opacity:.78;
  margin-bottom:10px;
}
.nav-item{
  position:relative;
  display:block;
  padding:11px 12px 11px 16px;
  font-size:15px;
  color:var(--ink-soft);
  border-radius:8px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-item::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  width:3px;height:0;
  border-radius:2px;
  background:var(--accent);
  transform:translateY(-50%);
  transition:height .26s var(--ease);
}
.nav-item:hover{color:var(--ink);background:var(--mist)}
.nav-item:hover::before{height:56%}
.nav-item.active{color:var(--ink);font-weight:600;background:var(--mist)}
.nav-item.active::before{height:72%}
.nav-foot{margin-top:auto;display:flex;flex-direction:column;gap:14px}
.side-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:44px;
  padding:0 16px;
  border-radius:var(--r-btn);
  background:var(--accent);
  color:#fff;
  font-size:14px;
  font-weight:600;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.side-cta:hover{background:var(--accent-press);transform:translateY(-1px)}
.side-note{font-size:12.5px;line-height:1.7;color:var(--ink-soft);opacity:.86}
.drawer-mask{
  position:fixed;inset:0;z-index:55;
  background:rgba(20,17,15,.5);
  opacity:0;visibility:hidden;
  transition:opacity .28s var(--ease),visibility .28s var(--ease);
}
.drawer-mask.show{opacity:1;visibility:visible}

/* ===== 移动端顶栏 ===== */
.topbar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:64px;
  z-index:58;
  align-items:center;
  justify-content:space-between;
  padding:0 18px;
  background:rgba(255,253,250,.95);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(8px);
}
.topbar-brand{
  font-family:var(--serif);
  font-weight:700;
  font-size:17px;
  letter-spacing:-.02em;
}
.topbar-brand em{font-style:normal;color:var(--accent)}
.topbar-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:38px;
  padding:0 14px;
  border-radius:9px;
  border:1px solid var(--line);
  background:var(--paper-2);
  color:var(--ink);
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.topbar-btn:hover{border-color:var(--accent);color:var(--accent)}
.bars{
  display:inline-block;
  width:16px;height:12px;
  background:
    linear-gradient(currentColor,currentColor) 0 0/100% 1.5px no-repeat,
    linear-gradient(currentColor,currentColor) 0 5px/100% 1.5px no-repeat,
    linear-gradient(currentColor,currentColor) 0 10px/100% 1.5px no-repeat;
}

/* ===== 页面主区 ===== */
.page{
  position:relative;
  z-index:1;
  margin-left:var(--nav-w);
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
.container{
  width:100%;
  max-width:1140px;
  margin:0 auto;
  padding:0 32px;
}

/* ===== 分类页头 ===== */
.cat-head{padding:76px 0 54px}
.crumb{
  display:flex;
  align-items:center;
  gap:9px;
  font-size:13px;
  color:var(--ink-soft);
  margin-bottom:24px;
}
.crumb a{color:var(--ink-soft);transition:color .2s var(--ease)}
.crumb a:hover{color:var(--accent);text-decoration:underline}
.crumb .sep{color:var(--line);font-size:12px}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:999px;
  border:1px solid rgba(30,107,91,.22);
  background:var(--mist);
  color:var(--jade);
  font-size:12.5px;
  letter-spacing:.04em;
}
.cat-head h1{
  font-family:var(--serif);
  font-size:clamp(30px,3.6vw,46px);
  line-height:1.25;
  letter-spacing:-.02em;
  margin:20px 0 20px;
  max-width:20em;
}
.cat-lead{
  font-size:17px;
  line-height:1.9;
  color:var(--ink-soft);
  max-width:72ch;
}
.cat-lead + .cat-lead{margin-top:10px}
.back-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:26px;
  font-size:14px;
  font-weight:600;
  color:var(--accent);
}
.back-link span{transition:transform .2s var(--ease)}
.back-link:hover span{transform:translateX(4px)}
.back-link:hover{text-decoration:underline}

/* ===== 速览数据 ===== */
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.stat{padding:30px 26px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat-num{
  font-family:var(--serif);
  font-size:26px;
  font-weight:700;
  color:var(--accent);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.stat-txt{margin-top:8px;font-size:14px;color:var(--ink-soft);line-height:1.7}

/* ===== 通用小节标题 ===== */
.sec-head{max-width:70ch}
.sec-title{
  font-family:var(--serif);
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.3;
  letter-spacing:-.02em;
}
.sec-desc{margin-top:14px;font-size:16px;color:var(--ink-soft);line-height:1.85}

/* ===== 图文交替 ===== */
.rows{padding:92px 0 96px}
.row-list-block{display:flex;flex-direction:column;gap:72px;margin-top:56px}
.row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.row-media{order:1}
.row-body{order:2}
.row:nth-child(even) .row-media{order:2}
.row:nth-child(even) .row-body{order:1}
.row-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.row-media:hover img{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.row-media figcaption{
  margin-top:10px;
  font-size:13px;
  color:var(--ink-soft);
  opacity:.86;
}
.row-index{
  font-family:var(--serif);
  font-size:15px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--accent);
}
.row-body h2{
  font-family:var(--serif);
  font-size:clamp(23px,2.3vw,30px);
  line-height:1.32;
  letter-spacing:-.02em;
  margin:10px 0 14px;
}
.row-body p{font-size:16.5px;line-height:1.9;color:var(--ink-soft)}
.row-body p + p{margin-top:12px}
.point-list{margin-top:18px;display:flex;flex-direction:column;gap:9px}
.point-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-soft);
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:7px;height:7px;
  border-radius:50%;
  border:1.5px solid var(--accent);
}

/* ===== 常用操作速查 ===== */
.quick{background:var(--mist);padding:88px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.quick-list{margin-top:44px;border-top:1px solid var(--line)}
.quick-item{
  display:grid;
  grid-template-columns:70px minmax(0,1fr) 190px;
  gap:26px;
  align-items:start;
  padding:28px 0;
  border-bottom:1px solid var(--line);
}
.quick-no{
  font-family:var(--serif);
  font-size:26px;
  font-weight:700;
  line-height:1.2;
  color:rgba(20,17,15,.26);
  font-variant-numeric:tabular-nums;
}
.quick-item h3{
  font-family:var(--serif);
  font-size:19px;
  line-height:1.4;
  letter-spacing:-.01em;
  margin-bottom:8px;
}
.quick-item p{font-size:15px;line-height:1.85;color:var(--ink-soft);max-width:66ch}
.quick-link{
  justify-self:end;
  align-self:center;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--accent);
  white-space:nowrap;
}
.quick-link span{transition:transform .2s var(--ease)}
.quick-link:hover{text-decoration:underline}
.quick-link:hover span{transform:translateX(4px)}

/* ===== 页底 CTA ===== */
.cta-band{background:var(--ink);color:var(--paper);padding:74px 0}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:44px;
  flex-wrap:wrap;
}
.cta-copy{max-width:58ch}
.cta-band h2{
  font-family:var(--serif);
  font-size:clamp(24px,2.8vw,34px);
  line-height:1.3;
  letter-spacing:-.02em;
  color:#fff;
  margin-bottom:12px;
}
.cta-band p{color:rgba(247,244,239,.74);font-size:16px;line-height:1.85}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.btn span{transition:transform .22s var(--ease)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-press);transform:translateY(-1px)}
.btn-primary:hover span{transform:translateX(4px)}
.btn-ghost{border-color:rgba(247,244,239,.34);color:#fff}
.btn-ghost:hover{background:rgba(247,244,239,.1);border-color:rgba(247,244,239,.6)}

/* ===== 页脚 ===== */
.foot{
  margin-top:auto;
  padding:64px 0 26px;
  background:var(--paper-2);
  border-top:1px solid var(--line);
}
.foot-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1.3fr;
  gap:40px;
}
.foot-brand{
  font-family:var(--serif);
  font-size:20px;
  font-weight:700;
  letter-spacing:-.02em;
  margin-bottom:12px;
}
.foot-brand em{font-style:normal;color:var(--accent)}
.foot-desc{font-size:14px;line-height:1.85;color:var(--ink-soft);max-width:34ch}
.foot-col h4{
  font-size:13px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--ink-soft);
  margin-bottom:16px;
}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a{font-size:14px;color:var(--ink-soft);transition:color .2s var(--ease)}
.foot-col a:hover{color:var(--accent);text-decoration:underline}
.foot-col p{font-size:14px;line-height:1.85;color:var(--ink-soft)}
.foot-col p + p{margin-top:8px}
.foot-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--ink-soft);
}

/* ===== 入场动效 ===== */
body.js .reveal{opacity:0;transform:translateY(12px)}
body.js .reveal.in{
  opacity:1;
  transform:none;
  transition:opacity .32s var(--ease),transform .32s var(--ease);
}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  :root{--nav-w:210px}
  .container{padding:0 26px}
  .row{gap:42px}
}
@media (max-width:1023px){
  body::before{background-size:44px 44px}
  .topbar{display:flex}
  .sidenav{
    width:300px;
    max-width:86vw;
    transform:translateX(-104%);
    transition:transform .3s var(--ease);
    box-shadow:var(--shadow-2);
    z-index:70;
  }
  .sidenav.open{transform:translateX(0)}
  .page{margin-left:0;padding-top:64px}
  .cat-head{padding:52px 0 42px}
  .rows{padding:68px 0 72px}
  .quick{padding:64px 0}
  .cta-band{padding:58px 0}
  .row{grid-template-columns:1fr;gap:28px}
  .row .row-media,
  .row:nth-child(even) .row-media{order:1}
  .row .row-body,
  .row:nth-child(even) .row-body{order:2}
  .row-list-block{gap:56px;margin-top:44px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat{border-bottom:1px solid var(--line)}
  .stat:nth-child(2n){border-right:0}
  .stat:nth-child(3),
  .stat:nth-child(4){border-bottom:0}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 20px}
  .cat-head h1{font-size:clamp(26px,7vw,34px)}
  .cat-lead{font-size:16px}
  .stat{padding:22px 18px}
  .stat-num{font-size:22px}
  .quick-item{
    grid-template-columns:1fr;
    gap:10px;
    padding:24px 0;
  }
  .quick-no{font-size:18px;color:rgba(20,17,15,.38)}
  .quick-link{justify-self:start;align-self:start}
  .cta-actions{width:100%}
  .btn{width:100%;justify-content:center}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  body.js .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --ink:#14110F;
  --ink-soft:#3A3532;
  --paper:#F7F4EF;
  --paper-2:#FFFDFA;
  --line:#E3DCD2;
  --accent:#D9481F;
  --accent-press:#B73A16;
  --jade:#1E6B5B;
  --mist:#EDE7DE;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(20,17,15,.05);
  --shadow-2:0 12px 32px -16px rgba(20,17,15,.18);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --ease:cubic-bezier(.2,.7,.3,1);
  --side-w:248px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background-color:var(--paper);
  background-image:
    linear-gradient(rgba(20,17,15,.026) 1px,transparent 1px),
    linear-gradient(90deg,rgba(20,17,15,.026) 1px,transparent 1px);
  background-size:34px 34px;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent);}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:700;letter-spacing:-.02em;margin:0;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;z-index:200;}
.skip:focus{left:12px;top:12px;}

/* ---------- 左侧竖向导航 ---------- */
.sidenav{
  position:fixed;left:0;top:0;width:var(--side-w);height:100vh;overflow-y:auto;
  background:var(--paper-2);border-right:1px solid var(--line);
  padding:28px 20px 24px;display:flex;flex-direction:column;gap:26px;z-index:80;
}
.brand{display:block;padding-bottom:20px;border-bottom:1px solid var(--line);}
.brand-mark{
  display:block;font-family:var(--font-serif);font-size:21px;font-weight:700;line-height:1.3;letter-spacing:-.01em;
}
.brand-mark em{font-style:normal;color:var(--accent);}
.brand-sub{
  display:block;margin-top:6px;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-soft);opacity:.7;
}
.nav-label{
  font-size:11px;letter-spacing:.2em;color:var(--ink-soft);opacity:.6;margin-bottom:10px;
}
.nav-group{display:flex;flex-direction:column;gap:2px;}
.nav-item{
  position:relative;display:block;padding:11px 14px;border-radius:8px;
  font-size:14.5px;color:var(--ink-soft);transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;width:3px;height:0;background:var(--accent);
  transform:translateY(-50%);transition:height .24s var(--ease);
}
.nav-item:hover{background:var(--mist);color:var(--ink);}
.nav-item:hover::before{height:56%;}
.nav-item.active{background:var(--mist);color:var(--ink);font-weight:600;}
.nav-item.active::before{height:62%;}
.nav-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);}
.side-cta{
  display:flex;align-items:center;justify-content:center;height:46px;border-radius:var(--radius-btn);
  background:var(--accent);color:#fff;font-size:14.5px;font-weight:600;
  transition:background .22s var(--ease);
}
.side-cta:hover{background:var(--accent-press);color:#fff;}
.side-note{margin-top:12px;font-size:12.5px;line-height:1.7;color:var(--ink-soft);opacity:.8;}

/* ---------- 移动端顶栏与抽屉 ---------- */
.topbar{
  display:none;position:sticky;top:0;z-index:90;height:62px;align-items:center;justify-content:space-between;
  padding:0 20px;background:rgba(255,253,250,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);
}
.topbar .brand-mark{font-size:17px;}
.topbar .brand-sub{display:none;}
.nav-toggle{
  width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:var(--paper-2);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .24s var(--ease),opacity .24s var(--ease);}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.scrim{
  position:fixed;inset:0;background:rgba(20,17,15,.5);opacity:0;pointer-events:none;
  transition:opacity .26s var(--ease);z-index:70;
}
.scrim.show{opacity:1;pointer-events:auto;}

/* ---------- 内容区 ---------- */
.content{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column;}
.container{width:100%;max-width:1120px;margin:0 auto;padding:0 24px;}

/* ---------- 页头 ---------- */
.page-hero{padding:72px 0 40px;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-soft);margin-bottom:26px;}
.crumb span{color:var(--line);}
.crumb .cur{color:var(--ink-soft);opacity:.8;}
.crumb a{color:var(--ink-soft);}
.crumb a:hover{color:var(--accent);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:999px;
  background:var(--mist);color:var(--jade);font-size:12.5px;letter-spacing:.06em;margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(28px,3.4vw,44px);line-height:1.28;max-width:22em;
}
.page-hero h1 em{font-style:normal;color:var(--accent);}
.lede{margin-top:20px;max-width:70ch;font-size:16.5px;line-height:1.9;color:var(--ink-soft);}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.chip{
  display:inline-flex;align-items:center;padding:6px 14px;border:1px solid var(--line);border-radius:999px;
  font-size:13px;color:var(--ink-soft);background:var(--paper-2);
}
.text-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:24px;font-size:14.5px;font-weight:600;color:var(--accent);
  border-bottom:1px solid transparent;padding-bottom:2px;
}
.text-link:hover{border-bottom-color:var(--accent);}
.text-link .ar{transition:transform .24s var(--ease);}
.text-link:hover .ar{transform:translateX(4px);}

/* ---------- 头图 ---------- */
.hero-figure{margin:0 0 0;}
.hero-figure img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-card);
  border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.hero-figure figcaption{margin-top:12px;font-size:13px;color:var(--ink-soft);opacity:.85;}

/* ---------- 快讯条 ---------- */
.bulletin{
  display:flex;align-items:center;gap:14px;background:var(--mist);border-left:3px solid var(--accent);
  border-radius:0 10px 10px 0;padding:14px 18px;margin-top:18px;
}
.bulletin strong{font-size:13px;letter-spacing:.08em;color:var(--accent);white-space:nowrap;}
.bulletin p{font-size:14.5px;color:var(--ink-soft);line-height:1.7;}

/* ---------- 两栏布局 ---------- */
.layout-2{display:grid;grid-template-columns:minmax(0,1fr) 196px;gap:56px;padding:56px 0 0;align-items:start;}
.col-side{position:sticky;top:32px;}
.anchor-title{font-size:11px;letter-spacing:.2em;color:var(--ink-soft);opacity:.6;margin-bottom:12px;}
.anchor-list{border-left:1px solid var(--line);padding-left:16px;display:flex;flex-direction:column;}
.anchor-list a{
  position:relative;display:block;padding:9px 0;font-size:14px;color:var(--ink-soft);line-height:1.5;
}
.anchor-list a::before{
  content:"";position:absolute;left:-17px;top:50%;width:2px;height:0;background:var(--accent);
  transform:translateY(-50%);transition:height .22s var(--ease);
}
.anchor-list a:hover{color:var(--ink);}
.anchor-list a.on{color:var(--accent);font-weight:600;}
.anchor-list a.on::before{height:64%;}
.anchor-side-cta{
  margin-top:22px;display:flex;align-items:center;justify-content:center;height:42px;border-radius:var(--radius-btn);
  border:1px solid var(--line);font-size:13.5px;font-weight:600;color:var(--ink);background:var(--paper-2);
}
.anchor-side-cta:hover{border-color:var(--accent);color:var(--accent);}
.anchor-mobile{display:none;}

/* ---------- 板块 ---------- */
.block{margin-bottom:72px;}
.block-head{margin-bottom:26px;padding-bottom:16px;border-bottom:1px solid var(--line);}
.block-head h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;}
.block-head p{margin-top:10px;font-size:15px;color:var(--ink-soft);max-width:68ch;}

/* ---------- 编号条目 ---------- */
.entry{
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--paper-2);
  margin-bottom:14px;box-shadow:var(--shadow-1);transition:border-color .22s var(--ease);
}
.entry:hover{border-color:#D6CDBF;}
.entry summary{
  display:flex;align-items:flex-start;gap:18px;padding:20px 22px;cursor:pointer;list-style:none;
}
.entry summary::-webkit-details-marker{display:none;}
.entry .num{
  font-family:var(--font-serif);font-size:22px;font-weight:700;line-height:1.3;
  color:rgba(20,17,15,.22);flex:0 0 auto;
}
.entry .t{font-size:16.5px;font-weight:600;line-height:1.6;padding-top:2px;}
.entry .plus{
  margin-left:auto;flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform .24s var(--ease);margin-top:4px;
}
.entry .plus::before,.entry .plus::after{
  content:"";position:absolute;background:var(--accent);border-radius:2px;
}
.entry .plus::before{left:50%;top:0;width:1.5px;height:100%;transform:translateX(-50%);}
.entry .plus::after{top:50%;left:0;height:1.5px;width:100%;transform:translateY(-50%);}
.entry[open] .plus{transform:rotate(45deg);}
.entry[open] summary{border-bottom:1px solid var(--line);}
.entry .body{padding:20px 24px 24px 66px;font-size:15.5px;line-height:1.9;color:var(--ink-soft);max-width:74ch;}
.entry .body p+p{margin-top:10px;}
.entry .body strong{color:var(--ink);font-weight:600;}

/* ---------- 时间线 ---------- */
.timeline{list-style:none;border-left:1px solid var(--line);margin-left:6px;padding-left:0;}
.timeline li{position:relative;padding:0 0 28px 26px;}
.timeline li:last-child{padding-bottom:0;}
.timeline li::before{
  content:"";position:absolute;left:-5px;top:9px;width:9px;height:9px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 4px var(--paper);
}
.timeline .tm{
  display:inline-block;font-variant-numeric:tabular-nums;font-weight:700;font-size:14px;color:var(--accent);
  letter-spacing:.02em;margin-bottom:4px;
}
.timeline h3{font-size:16.5px;margin-bottom:6px;}
.timeline p{font-size:15px;color:var(--ink-soft);max-width:66ch;}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.step{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.step:hover{transform:translateY(-2px);border-color:#D6CDBF;box-shadow:var(--shadow-2);}
.step .sn{
  font-family:var(--font-serif);font-size:13px;letter-spacing:.14em;color:var(--jade);font-weight:700;
}
.step h3{font-size:18px;margin:10px 0 8px;}
.step p{font-size:14.5px;color:var(--ink-soft);line-height:1.8;}

/* ---------- 图文块 ---------- */
.figure-row{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:32px;align-items:center;margin-top:28px;}
.figure-row img{width:100%;aspect-ratio:4/3;object-fit:cover;border:1px solid var(--line);}
.figure-row .fig-text h3{font-size:19px;margin-bottom:10px;}
.figure-row .fig-text p{font-size:15px;color:var(--ink-soft);}
.figure-row .fig-text ul{margin-top:14px;list-style:none;display:flex;flex-direction:column;gap:8px;}
.figure-row .fig-text li{
  position:relative;padding-left:18px;font-size:14.5px;color:var(--ink-soft);
}
.figure-row .fig-text li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:1.5px;background:var(--accent);
}

/* ---------- 常见疑问 ---------- */
.qa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 32px;}
.qa{border-top:2px solid var(--ink);padding-top:16px;}
.qa h3{font-size:16.5px;margin-bottom:8px;line-height:1.6;}
.qa p{font-size:14.5px;color:var(--ink-soft);line-height:1.85;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink);color:#F7F4EF;border-radius:18px;padding:44px 44px 40px;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,400px);gap:40px;align-items:start;
  box-shadow:var(--shadow-2);
}
.cta-band h2{color:#FFFDFA;font-size:clamp(22px,2.4vw,30px);line-height:1.35;}
.cta-band .cta-note{margin-top:14px;font-size:14.5px;line-height:1.85;color:rgba(247,244,239,.78);max-width:52ch;}
.cta-meta{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px;}
.cta-meta span{
  border:1px solid rgba(247,244,239,.26);border-radius:999px;padding:5px 13px;font-size:12.5px;color:rgba(247,244,239,.85);
}
.sign-form{display:flex;flex-direction:column;gap:14px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field label{font-size:13.5px;color:rgba(247,244,239,.85);letter-spacing:.02em;}
.field input{
  height:48px;border-radius:var(--radius-btn);border:1px solid rgba(247,244,239,.25);
  background:rgba(255,253,250,.06);color:#FFFDFA;padding:0 14px;font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input::placeholder{color:rgba(247,244,239,.42);}
.field input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px rgba(217,72,31,.45);}
.check{display:flex;align-items:flex-start;gap:9px;font-size:13px;line-height:1.7;color:rgba(247,244,239,.8);}
.check input{width:16px;height:16px;margin-top:3px;accent-color:var(--accent);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;
  border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn .ar{transition:transform .24s var(--ease);}
.btn:hover .ar{transform:translateX(4px);}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-press);color:#fff;}
.btn-ghost{background:transparent;border-color:rgba(247,244,239,.34);color:#F7F4EF;}
.btn-ghost:hover{border-color:#F7F4EF;color:#FFFDFA;}
.form-msg{font-size:13.5px;color:#8FD3C1;min-height:20px;}

/* ---------- 页脚 ---------- */
.foot{
  margin-top:auto;background:var(--paper-2);border-top:1px solid var(--line);padding:64px 0 26px;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.foot-brand{font-family:var(--font-serif);font-size:19px;font-weight:700;}
.foot-brand em{font-style:normal;color:var(--accent);}
.foot-desc{margin-top:12px;font-size:13.5px;line-height:1.8;color:var(--ink-soft);max-width:32ch;}
.foot-col h4{font-size:14px;letter-spacing:.06em;margin-bottom:14px;}
.foot-col ul{list-style:none;display:flex;flex-direction:column;gap:9px;}
.foot-col li a{font-size:13.5px;color:var(--ink-soft);}
.foot-col li a:hover{color:var(--accent);}
.foot-col p{font-size:13.5px;color:var(--ink-soft);line-height:1.85;}
.foot-col p+p{margin-top:8px;}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:var(--ink-soft);opacity:.85;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--ease),transform .32s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.entry[open] .body{animation:fadeIn .22s var(--ease);}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--side-w:216px;}
  .layout-2{grid-template-columns:minmax(0,1fr) 172px;gap:40px;}
  .cta-band{padding:38px 34px 34px;grid-template-columns:minmax(0,1fr) minmax(0,340px);gap:32px;}
}
@media (max-width:1023px){
  .topbar{display:flex;}
  .sidenav{
    width:288px;transform:translateX(-100%);transition:transform .28s var(--ease);
    box-shadow:var(--shadow-2);
  }
  .sidenav.open{transform:translateX(0);}
  .content{margin-left:0;}
  .layout-2{grid-template-columns:minmax(0,1fr);gap:0;padding-top:44px;}
  .col-side{display:none;}
  .anchor-mobile{
    display:block;margin-bottom:32px;border:1px solid var(--line);border-radius:var(--radius-card);
    background:var(--paper-2);padding:4px 16px;
  }
  .anchor-mobile summary{
    list-style:none;cursor:pointer;padding:14px 0;font-size:14.5px;font-weight:600;
    display:flex;align-items:center;justify-content:space-between;
  }
  .anchor-mobile summary::-webkit-details-marker{display:none;}
  .anchor-mobile summary::after{content:"＋";color:var(--accent);font-weight:700;}
  .anchor-mobile[open] summary::after{content:"－";}
  .anchor-mobile ul{list-style:none;border-top:1px solid var(--line);padding:8px 0 14px;}
  .anchor-mobile li a{display:block;padding:9px 0;font-size:14px;color:var(--ink-soft);}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .page-hero{padding:44px 0 32px;}
  .block{margin-bottom:56px;}
  .steps{grid-template-columns:1fr;}
  .qa-grid{grid-template-columns:1fr;}
  .figure-row{grid-template-columns:1fr;gap:20px;}
  .cta-band{grid-template-columns:1fr;padding:32px 24px 30px;border-radius:14px;}
  .entry summary{padding:18px 18px;gap:14px;}
  .entry .body{padding:18px 18px 20px 18px;}
  .foot{padding:48px 0 22px;}
  .foot-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  body{font-size:15.5px;}
  .page-hero h1{font-size:26px;}
  .lede{font-size:15.5px;}
  .hero-meta{gap:8px;}
  .chip{font-size:12.5px;padding:5px 12px;}
  .bulletin{flex-direction:column;align-items:flex-start;gap:6px;}
  .entry .num{font-size:19px;}
  .btn{width:100%;}
  .foot-bottom{flex-direction:column;gap:6px;}
}

/* roulang page: category3 */
:root{
  --ink:#14110F;
  --ink-soft:#3A3532;
  --paper:#F7F4EF;
  --paper-2:#FFFDFA;
  --line:#E3DCD2;
  --accent:#D9481F;
  --accent-press:#B73A16;
  --jade:#1E6B5B;
  --mist:#EDE7DE;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(20,17,15,.05);
  --sh-2:0 12px 32px -16px rgba(20,17,15,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --side:248px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(20,17,15,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(20,17,15,.028) 1px,transparent 1px);
  background-size:56px 56px;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--accent)}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;letter-spacing:-.02em;line-height:1.3;margin:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 32px}
.section{padding:72px 0}
.section-tight{padding:52px 0}
.sec-head{margin-bottom:32px;max-width:70ch}
.sec-label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--ink-soft);margin-bottom:14px;
}
.sec-label::before{content:"";width:24px;height:1px;background:var(--accent);display:block}
h2{font-size:clamp(24px,2.4vw,31px)}
h3{font-size:20px}
.sec-desc{margin-top:14px;color:var(--ink-soft);font-size:16px;line-height:1.9;max-width:76ch}
.badge{
  display:inline-block;padding:3px 11px;border-radius:999px;
  font-size:12px;line-height:1.7;font-weight:500;letter-spacing:.02em;
  background:var(--mist);color:var(--ink-soft);border:1px solid transparent;
}
.badge-jade{background:rgba(30,107,91,.09);color:var(--jade);border-color:rgba(30,107,91,.18)}
.badge-accent{background:rgba(217,72,31,.09);color:var(--accent);border-color:rgba(217,72,31,.2)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  border:1px solid transparent;font-weight:600;font-size:15px;
  cursor:pointer;position:relative;overflow:hidden;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary::after{
  content:"";position:absolute;inset:0;background:var(--accent-press);
  transform:translateX(-101%);transition:transform .28s var(--ease);z-index:0;
}
.btn-primary:hover::after{transform:translateX(0)}
.btn-primary:hover{color:#fff}
.btn-primary > *{position:relative;z-index:1}
.btn-primary .arw{transition:transform .2s var(--ease)}
.btn-primary:hover .arw{transform:translateX(4px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);color:var(--ink);background:var(--paper-2)}
.btn:disabled{opacity:.6;cursor:not-allowed}
.textlink{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;
  color:var(--ink-soft);border-bottom:1px solid var(--line);padding-bottom:2px;
}
.textlink:hover{color:var(--accent);border-color:var(--accent)}
.textlink .arw{transition:transform .2s var(--ease)}
.textlink:hover .arw{transform:translateX(3px)}
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- 侧边导航 ---------- */
.sidenav{
  position:fixed;top:0;left:0;z-index:20;
  width:var(--side);height:100vh;
  background:var(--paper-2);
  border-right:1px solid var(--line);
  padding:28px 22px;
  display:flex;flex-direction:column;gap:26px;
  overflow-y:auto;
}
.brand{display:block;padding-bottom:20px;border-bottom:1px solid var(--line)}
.brand-mark{
  display:block;font-family:var(--serif);font-size:21px;font-weight:700;
  letter-spacing:-.02em;line-height:1.35;color:var(--ink);
}
.brand-mark em{font-style:normal;display:block;color:var(--accent)}
.brand-sub{
  display:block;margin-top:8px;font-size:10.5px;letter-spacing:.22em;
  text-transform:uppercase;color:#9A9187;
}
.nav-label{
  font-size:11px;letter-spacing:.2em;text-transform:uppercase;
  color:#9A9187;margin-bottom:10px;
}
.nav-group{display:flex;flex-direction:column;gap:4px}
.nav-item{
  position:relative;display:block;
  padding:10px 12px 10px 16px;border-radius:10px;
  font-size:14.5px;color:var(--ink-soft);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;width:3px;height:20px;
  border-radius:2px;background:var(--accent);
  transform:translateY(-50%) scaleY(0);
  transition:transform .24s var(--ease);
  transform-origin:center;
}
.nav-item:hover{background:#F2EDE5;color:var(--ink)}
.nav-item:hover::before{transform:translateY(-50%) scaleY(1)}
.nav-item.active{background:var(--mist);color:var(--ink);font-weight:600}
.nav-item.active::before{transform:translateY(-50%) scaleY(1)}
.nav-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line)}
.side-cta{
  display:flex;align-items:center;justify-content:center;
  height:44px;border-radius:var(--r-btn);
  background:var(--accent);color:#fff;font-size:14.5px;font-weight:600;
  transition:background .2s var(--ease);
}
.side-cta:hover{background:var(--accent-press);color:#fff}
.side-note{margin-top:14px;font-size:12.5px;line-height:1.9;color:#8C8377}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;position:sticky;top:0;z-index:14;
  align-items:center;justify-content:space-between;gap:16px;
  height:62px;padding:0 20px;
  background:rgba(247,244,239,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.brand-mini{font-family:var(--serif);font-size:17px;font-weight:700;letter-spacing:-.02em}
.brand-mini em{font-style:normal;color:var(--accent)}
.burger{
  width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:var(--paper-2);display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:5px;cursor:pointer;
  transition:border-color .2s var(--ease);
}
.burger:hover{border-color:var(--ink)}
.burger span{display:block;width:18px;height:1.6px;background:var(--ink);border-radius:2px;transition:transform .22s var(--ease),opacity .22s var(--ease)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6.6px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg)}
.scrim{
  position:fixed;inset:0;z-index:15;background:rgba(20,17,15,.5);
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);
}
.scrim.show{opacity:1;visibility:visible}

/* ---------- 主体 ---------- */
.main{position:relative;z-index:1;margin-left:var(--side)}
.page-head{padding:60px 0 34px}
.crumb{font-size:13.5px;color:#958C80;display:flex;align-items:center;gap:8px;margin-bottom:22px;flex-wrap:wrap}
.crumb a:hover{color:var(--accent)}
.crumb .sep{color:var(--line)}
.crumb .now{color:var(--ink-soft)}
.page-head h1{
  font-size:clamp(30px,3.6vw,46px);
  line-height:1.25;max-width:22em;
}
.page-head .lead{
  margin-top:20px;max-width:72ch;font-size:16.5px;line-height:1.95;color:var(--ink-soft);
}
.page-head .head-links{margin-top:24px;display:flex;gap:22px;flex-wrap:wrap;align-items:center}
.head-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}

.figure-band{margin-top:12px;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);background:var(--mist)}
.figure-band img{width:100%;height:300px;object-fit:cover}
.figure-band figcaption{
  padding:12px 18px;font-size:13px;color:var(--ink-soft);
  background:var(--paper-2);border-top:1px solid var(--line);
}

/* ---------- 对比卡片（2列不对称） ---------- */
.compare{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:start}
.compare-card{
  background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.compare-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D6CBBE}
.compare-card.primary{padding:30px}
.compare-card.primary .card-title{font-size:24px}
.card-title{font-family:var(--serif);font-size:21px;font-weight:700;letter-spacing:-.02em}
.card-tag{margin-bottom:14px}
.card-lead{margin-top:12px;color:var(--ink-soft);font-size:15.5px;line-height:1.9}
.spec{margin-top:20px}
.spec-row{display:flex;gap:16px;padding:13px 0;border-top:1px solid var(--line);font-size:14.5px}
.spec-row dt{flex:0 0 92px;color:#8C8377}
.spec-row dd{margin:0;color:var(--ink-soft);flex:1}
.card-media{margin-top:22px;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line)}
.card-media img{width:100%;height:170px;object-fit:cover}

/* ---------- 表格 ---------- */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--r-img);
  background:var(--paper-2);overflow-x:auto;
}
table{width:100%;border-collapse:collapse;min-width:640px}
th{
  background:var(--mist);text-align:left;padding:14px 20px;
  font-size:13.5px;font-weight:600;color:var(--ink);letter-spacing:.02em;
  font-family:var(--sans);
}
td{
  padding:15px 20px;border-top:1px solid var(--line);
  font-size:14.5px;color:var(--ink-soft);vertical-align:top;
}
td:first-child{color:var(--ink);font-weight:500}
tbody tr{transition:background .18s var(--ease)}
tbody tr:hover{background:#FBF7F0}

/* ---------- 流程 ---------- */
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-top:1px solid var(--line);
}
.step{
  padding:26px 22px 8px 0;border-right:1px solid var(--line);position:relative;
}
.step:last-child{border-right:none}
.step-num{
  display:block;font-family:var(--serif);font-size:26px;font-weight:700;
  color:#CFC4B6;letter-spacing:-.02em;margin-bottom:10px;
}
.step h3{font-size:17.5px;margin-bottom:8px}
.step p{font-size:14px;color:var(--ink-soft);line-height:1.85}

/* ---------- 最新提示条 ---------- */
.notice-list{border-top:1px solid var(--line)}
.notice{
  display:grid;grid-template-columns:112px 108px 1fr;
  gap:18px;align-items:center;
  padding:18px 0;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
.notice:hover{background:#FBF7F0}
.notice-date{
  font-size:13.5px;color:#958C80;
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.notice p{font-size:15px;color:var(--ink-soft);line-height:1.8}
.notice .badge{justify-self:start}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:18px;
  min-height:56px;padding:14px 4px;background:none;border:none;
  text-align:left;cursor:pointer;font-family:var(--serif);
  font-size:17px;font-weight:600;letter-spacing:-.01em;color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--accent)}
.faq-num{
  font-family:var(--serif);font-size:14px;color:#B4A99B;
  flex:0 0 32px;font-variant-numeric:tabular-nums;
}
.faq-text{flex:1;line-height:1.6}
.faq-icon{position:relative;flex:0 0 16px;width:16px;height:16px;transition:transform .22s var(--ease)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;
  transition:background .2s var(--ease);
}
.faq-icon::before{left:0;top:7.2px;width:16px;height:1.6px}
.faq-icon::after{top:0;left:7.2px;width:1.6px;height:16px}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:var(--accent)}
.faq-item.open .faq-q{color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease)}
.faq-a p{
  padding:0 40px 24px 50px;max-width:76ch;
  font-size:15.5px;line-height:1.9;color:var(--ink-soft);
}

/* ---------- CTA ---------- */
.cta{position:relative;background:var(--ink);color:#F4EFE8;overflow:hidden}
.cta::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.16;
}
.cta-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1fr minmax(320px,420px);
  gap:48px;align-items:center;
  padding:64px 0;
}
.cta h2{color:#fff;font-size:clamp(24px,2.4vw,32px);line-height:1.35}
.cta .cta-desc{margin-top:16px;color:rgba(244,239,232,.76);font-size:15.5px;line-height:1.9;max-width:56ch}
.form{background:rgba(255,253,250,.06);border:1px solid rgba(244,239,232,.16);border-radius:var(--r-card);padding:24px}
.form label{display:block;font-size:13.5px;color:rgba(244,239,232,.8);margin-bottom:8px}
.form input[type="text"]{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-btn);
  background:rgba(255,253,250,.08);border:1px solid rgba(244,239,232,.24);
  color:#fff;font-size:15px;outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.form input[type="text"]::placeholder{color:rgba(244,239,232,.42)}
.form input[type="text"]:focus{
  border-color:var(--accent);background:rgba(255,253,250,.12);
  box-shadow:0 0 0 2px rgba(217,72,31,.35);
}
.form .check{display:flex;gap:10px;align-items:flex-start;margin:16px 0 18px}
.form .check input{margin-top:5px;accent-color:var(--accent)}
.form .check span{font-size:13px;line-height:1.7;color:rgba(244,239,232,.7)}
.form .btn{width:100%}
.form .form-note{margin-top:12px;font-size:12.5px;color:rgba(244,239,232,.55);line-height:1.7}
.form .form-note.ok{color:#7FD6BE}

/* ---------- 页脚 ---------- */
.foot{
  position:relative;z-index:1;margin-left:var(--side);
  background:var(--paper-2);border-top:1px solid var(--line);
  padding:60px 0 26px;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.foot-brand{font-family:var(--serif);font-size:19px;font-weight:700;letter-spacing:-.02em}
.foot-brand em{font-style:normal;color:var(--accent)}
.foot-desc{margin-top:12px;font-size:14px;line-height:1.85;color:var(--ink-soft);max-width:34ch}
.foot-col h4{font-size:15px;font-family:var(--sans);font-weight:600;margin-bottom:14px;letter-spacing:0}
.foot-col ul{display:flex;flex-direction:column;gap:9px}
.foot-col li a,.foot-col p{font-size:14px;color:var(--ink-soft);line-height:1.85}
.foot-col li a:hover{color:var(--accent)}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#958C80;
}

/* ---------- 断点 ---------- */
@media (max-width:1279px){
  :root{--side:216px}
  .sidenav{padding:24px 18px}
  .compare{grid-template-columns:1.25fr 1fr;gap:20px}
  .cta-inner{grid-template-columns:1fr minmax(300px,380px);gap:36px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step{border-bottom:1px solid var(--line);padding-bottom:24px}
  .step:nth-child(2n){border-right:none}
  .step:nth-last-child(-n+2){border-bottom:none}
}
@media (max-width:1023px){
  .main,.foot{margin-left:0}
  .sidenav{
    width:284px;padding:26px 22px;
    transform:translateX(-102%);
    transition:transform .3s var(--ease);
    box-shadow:var(--sh-2);
  }
  .sidenav.open{transform:none}
  .topbar{display:flex}
  .container{padding:0 24px}
  .section{padding:56px 0}
  .page-head{padding:40px 0 26px}
  .figure-band img{height:240px}
  .compare{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .foot{padding:48px 0 22px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 20px}
  .section{padding:44px 0}
  .page-head h1{font-size:29px}
  .page-head .lead{font-size:15.5px}
  .figure-band img{height:190px}
  .steps{grid-template-columns:1fr}
  .step{border-right:none;padding:22px 0 18px;border-bottom:1px solid var(--line)}
  .step:last-child{border-bottom:none}
  .notice{grid-template-columns:1fr;gap:8px;align-items:start}
  .notice-date{font-size:12.5px}
  .faq-a p{padding:0 8px 20px 8px}
  .faq-num{flex:0 0 26px}
  .faq-q{font-size:16px;gap:12px}
  .cta-inner{grid-template-columns:1fr;gap:26px;padding:50px 0}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .compare-card{padding:20px}
  .compare-card.primary{padding:22px}
  .spec-row{flex-direction:column;gap:4px}
  .spec-row dt{flex:none}
  .page-head .head-links{gap:14px}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
}