/* roulang page: index */
/* ===== 设计变量 ===== */
:root{
  --bg:#070B14;
  --bg-1:#0D1524;
  --bg-2:#121C30;
  --gold:#C8A464;
  --gold-hi:#E7D3A1;
  --gold-lo:#8E7239;
  --mist:#5E8C8A;
  --clay:#C9603F;
  --text:#F2F5FA;
  --text-2:#A9B6CA;
  --text-3:#6F7D93;
  --glass:rgba(255,255,255,.06);
  --glass-2:rgba(255,255,255,.04);
  --glass-bd:rgba(255,255,255,.12);
  --glass-bd-2:rgba(255,255,255,.22);
  --line:rgba(255,255,255,.08);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-glass:0 8px 30px rgba(0,0,0,.45);
  --sh-float:0 16px 44px rgba(0,0,0,.55);
  --sh-gold:0 0 0 1px rgba(200,164,100,.5),0 8px 28px rgba(200,164,100,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:220ms;
  --sec:110px;
  --font-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,"PingFang SC",serif;
  --font-sans:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;
}

/* ===== reset ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0 0 96px;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color var(--t) var(--ease),border-color var(--t) var(--ease),background-color var(--t) var(--ease),opacity var(--t) var(--ease);}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:0;outline:none;appearance:none;-webkit-appearance:none;}
button{cursor:pointer;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:3px solid rgba(200,164,100,.65);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(200,164,100,.3);color:#fff;}

/* ===== 基础版式 ===== */
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;letter-spacing:.01em;color:var(--text);}
h1{font-size:clamp(30px,5.2vw,56px);line-height:1.15;}
h2{font-size:clamp(24px,3.2vw,38px);line-height:1.25;}
h3{font-size:clamp(19px,2vw,24px);line-height:1.35;}
h4{font-size:18px;line-height:1.4;}
p{color:var(--text-2);}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.section{padding:var(--sec) 0;}
.section--tight{padding:72px 0;}
.section--alt{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-1) 45%,var(--bg) 100%);}
.section__head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
  flex-wrap:wrap;
}
.section__title{position:relative;padding-left:18px;}
.section__title::before{
  content:"";
  position:absolute;
  left:0;top:8px;bottom:8px;
  width:4px;
  border-radius:4px;
  background:linear-gradient(180deg,var(--gold-hi),var(--gold-lo));
}
.section__desc{color:var(--text-3);font-size:14px;max-width:600px;margin-top:10px;line-height:1.8;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--gold);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:8px;height:8px;border:1.5px solid var(--gold);border-radius:2px;transform:rotate(45deg);}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  line-height:1;
  white-space:nowrap;
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),background-color var(--t) var(--ease),border-color var(--t) var(--ease),color var(--t) var(--ease);
}
.btn--gold{
  background:linear-gradient(135deg,var(--gold-hi) 0%,var(--gold) 100%);
  color:#14100A;
  box-shadow:var(--sh-gold);
}
.btn--gold:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(200,164,100,.65),0 12px 34px rgba(200,164,100,.38);}
.btn--gold:active{transform:translateY(1px);}
.btn--glass{
  border:1px solid var(--glass-bd-2);
  color:var(--text);
  background:rgba(255,255,255,.02);
}
.btn--glass:hover{border-color:var(--gold);background:rgba(200,164,100,.10);color:var(--gold-hi);transform:translateY(-2px);}
.btn--glass:active{transform:translateY(1px);}
.btn--sm{padding:10px 18px;font-size:14px;}
.btn--lg{padding:17px 36px;font-size:16px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;}
.btn__spinner{
  width:15px;height:15px;border-radius:50%;
  border:2px solid rgba(20,16,10,.25);
  border-top-color:#14100A;
  animation:spin .7s linear infinite;
  display:none;
}
.btn.is-loading .btn__spinner{display:inline-block;}
.btn.is-loading .btn__label{opacity:.7;}
@keyframes spin{to{transform:rotate(360deg);}}

.link-more{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--gold);font-size:14px;font-weight:600;
  border-bottom:1px solid transparent;
  padding-bottom:2px;
}
.link-more::after{content:"→";transition:transform var(--t) var(--ease);}
.link-more:hover{border-bottom-color:var(--gold);}
.link-more:hover::after{transform:translateX(4px);}

/* ===== 导航 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:76px;
  background:rgba(7,11,20,.28);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:height var(--t) var(--ease),background-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.site-header.is-scrolled{
  height:64px;
  background:rgba(7,11,20,.92);
  box-shadow:0 10px 34px rgba(0,0,0,.5);
}
.nav{
  height:100%;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand__mark{
  width:40px;height:40px;flex-shrink:0;
  border-radius:12px;
  border:1px solid rgba(200,164,100,.45);
  background:linear-gradient(140deg,rgba(200,164,100,.22),rgba(200,164,100,.04));
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);
  font-size:17px;font-weight:700;color:var(--gold-hi);
  letter-spacing:.02em;
}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__main{font-family:var(--font-serif);font-size:17px;font-weight:700;color:var(--gold-hi);letter-spacing:.04em;}
.brand__sub{font-size:11px;color:var(--text-3);letter-spacing:.16em;margin-top:2px;}
.nav__menu{display:flex;align-items:center;gap:4px;flex:1;justify-content:center;}
.nav__lead{
  font-size:11px;color:var(--text-3);letter-spacing:.14em;
  padding-right:14px;margin-right:8px;
  border-right:1px solid var(--line);
  white-space:nowrap;
}
.nav__link{
  position:relative;
  display:inline-block;
  padding:9px 13px;
  font-size:14.5px;
  color:var(--text-2);
  border-radius:var(--r-sm);
  white-space:nowrap;
}
.nav__link::after{
  content:"";
  position:absolute;left:13px;right:13px;bottom:2px;
  height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--gold-hi),var(--gold-lo));
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--t) var(--ease);
}
.nav__link:hover{color:var(--text);}
.nav__link:hover::after{transform:scaleX(1);}
.nav__link.is-active{color:var(--gold);}
.nav__link.is-active::after{transform:scaleX(1);}
.nav__actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav__search-btn{
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-2);
  transition:all var(--t) var(--ease);
}
.nav__search-btn:hover{border-color:var(--gold);color:var(--gold-hi);background:rgba(200,164,100,.08);}
.nav__search-btn svg{width:18px;height:18px;}
.nav__cta{padding:11px 22px;font-size:14px;}
.nav__burger{
  display:none;
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav__burger span{display:block;width:18px;height:1.5px;background:var(--text);border-radius:2px;transition:transform var(--t) var(--ease),opacity var(--t) var(--ease);}
.nav__burger.is-open span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
.nav__burger.is-open span:nth-child(2){opacity:0;}
.nav__burger.is-open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}

.search-bar{
  position:fixed;top:76px;left:0;right:0;z-index:58;
  background:rgba(7,11,20,.94);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  transform:translateY(-12px);
  opacity:0;pointer-events:none;
  transition:opacity var(--t) var(--ease),transform var(--t) var(--ease);
}
.search-bar.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
.search-bar__inner{display:flex;align-items:center;gap:12px;padding:16px 0;}
.search-bar input{
  flex:1;height:46px;
  padding:0 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--glass-bd);
  background:rgba(255,255,255,.05);
  color:var(--text);
  font-size:15px;
}
.search-bar input::placeholder{color:var(--text-3);}
.search-bar input:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(200,164,100,.22);}

.drawer{
  position:fixed;inset:0;z-index:70;
  background:rgba(7,11,20,.96);
  -webkit-backdrop-filter:blur(20px) saturate(140%);
  backdrop-filter:blur(20px) saturate(140%);
  display:flex;flex-direction:column;
  padding:24px 22px calc(24px + env(safe-area-inset-bottom));
  transform:translateX(100%);
  transition:transform 300ms var(--ease);
  visibility:hidden;
}
.drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer__close{width:42px;height:42px;border-radius:50%;border:1px solid var(--line);color:var(--text-2);font-size:20px;line-height:1;}
.drawer__list{flex:1;overflow-y:auto;}
.drawer__item{
  display:block;
  padding:17px 4px;
  border-bottom:1px solid var(--line);
  font-size:17px;
  color:var(--text-2);
}
.drawer__item.is-active{color:var(--gold);}
.drawer__item small{display:block;font-size:12px;color:var(--text-3);margin-top:4px;letter-spacing:.08em;}
.drawer__foot{padding-top:18px;border-top:1px solid var(--line);}
.drawer__foot .btn{width:100%;}

/* ===== 首屏 ===== */
.hero{
  position:relative;
  min-height:100svh;
  display:flex;flex-direction:column;justify-content:center;
  padding:140px 0 56px;
  overflow:hidden;
  isolation:isolate;
}
.hero__bg{
  position:absolute;inset:0;z-index:-2;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  transform:scale(1.02);
  animation:heroZoom 18s var(--ease) infinite alternate;
}
@keyframes heroZoom{from{transform:scale(1.02);}to{transform:scale(1.06);}}
.hero__overlay{
  position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(180deg,rgba(7,11,20,.72) 0%,rgba(7,11,20,.86) 45%,rgba(7,11,20,.97) 100%),
    radial-gradient(1100px 600px at 12% 20%,rgba(200,164,100,.14),transparent 62%);
}
.hero__grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
  align-items:center;
}
.hero__text{grid-column:1 / span 7;}
.hero__badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;
  border-radius:var(--r-pill);
  border:1px solid rgba(200,164,100,.36);
  background:rgba(200,164,100,.10);
  color:var(--gold-hi);
  font-size:13px;
  margin-bottom:22px;
}
.hero__badge i{width:6px;height:6px;border-radius:50%;background:var(--clay);font-style:normal;box-shadow:0 0 0 4px rgba(201,96,63,.18);}
.hero h1{margin-bottom:0;}
.hero h1 em{font-style:normal;color:var(--gold-hi);}
.hero__rule{width:56px;height:8px;border-radius:4px;background:linear-gradient(90deg,var(--gold-hi),transparent);margin:22px 0 20px;}
.hero__sub{
  font-size:17px;line-height:1.9;color:var(--text-2);
  max-width:560px;margin-bottom:32px;
}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap;}
.hero__note{margin-top:24px;font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.hero__note span{display:inline-flex;align-items:center;gap:6px;}
.hero__note span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--gold);}

.hero__panel{
  grid-column:8 / span 5;
  border-radius:var(--r-lg);
  border:1px solid var(--glass-bd);
  background:linear-gradient(150deg,rgba(255,255,255,.09),rgba(255,255,255,.035));
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--sh-float),inset 0 1px 0 rgba(255,255,255,.08);
  padding:26px;
}
.hero__panel-title{font-size:17px;font-family:var(--font-serif);margin-bottom:6px;}
.hero__panel-desc{font-size:13px;color:var(--text-3);margin-bottom:18px;}
.hero__search{display:flex;gap:8px;margin-bottom:20px;}
.hero__search input{
  flex:1;height:46px;padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--glass-bd);
  background:rgba(255,255,255,.05);
  font-size:14px;color:var(--text);
}
.hero__search input::placeholder{color:var(--text-3);}
.hero__search input:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(200,164,100,.2);}
.hero__search button{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--gold-hi),var(--gold));color:#14100A;display:flex;align-items:center;justify-content:center;}
.hero__search button svg{width:18px;height:18px;}
.hero__quick{display:flex;flex-direction:column;gap:10px;}
.hero__quick a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:13px 16px;
  border-radius:var(--r-md);
  border:1px solid var(--glass-bd);
  background:rgba(255,255,255,.03);
  font-size:14px;color:var(--text-2);
}
.hero__quick a:hover{border-color:var(--gold);color:var(--gold-hi);background:rgba(200,164,100,.09);transform:translateX(3px);}
.hero__quick a b{font-weight:600;color:var(--text);}
.hero__quick a span{font-size:12px;color:var(--text-3);}
.hero__update{margin-top:20px;padding-top:16px;border-top:1px solid var(--line);font-size:12.5px;color:var(--text-3);display:flex;align-items:center;gap:8px;}
.hero__update::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mist);}

.hero__bottom{
  margin-top:52px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding-top:26px;border-top:1px solid var(--line);
}
.scroll-hint{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--text-3);letter-spacing:.08em;}
.scroll-hint i{display:block;width:1px;height:26px;background:linear-gradient(180deg,var(--gold),transparent);font-style:normal;}
.trust-row{display:flex;gap:44px;flex-wrap:wrap;}
.trust-item{min-width:96px;}
.trust-item b{display:block;font-family:var(--font-num);font-size:26px;color:var(--gold-hi);line-height:1.2;}
.trust-item span{display:block;font-size:12.5px;color:var(--text-3);margin-top:2px;}

/* ===== 卖点三连 ===== */
.merits{
  display:grid;
  grid-template-columns:1.15fr .95fr .9fr;
  gap:24px;
  align-items:stretch;
}
.merit{
  position:relative;
  padding:28px;
  border-radius:var(--r-lg);
  border:1px solid var(--glass-bd);
  background:linear-gradient(160deg,rgba(255,255,255,.075),rgba(255,255,255,.025));
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--sh-glass),inset 0 1px 0 rgba(255,255,255,.08);
  transition:transform var(--t) var(--ease),border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
  overflow:hidden;
}
.merit::after{
  content:"";position:absolute;top:0;left:0;width:120px;height:1px;
  background:linear-gradient(90deg,var(--gold),transparent);
  opacity:.6;transition:opacity var(--t) var(--ease);
}
.merit:hover{transform:translateY(-4px);border-color:rgba(200,164,100,.5);box-shadow:var(--sh-float);}
.merit:hover::after{opacity:1;}
.merit--lift{transform:translateY(-12px);}
.merit--lift:hover{transform:translateY(-16px);}
.merit__icon{
  width:46px;height:46px;border-radius:14px;
  border:1px solid rgba(200,164,100,.4);
  background:rgba(200,164,100,.09);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:20px;
}
.merit__icon svg{width:22px;height:22px;stroke:var(--gold);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.merit h3{font-size:19px;margin-bottom:12px;}
.merit p{font-size:14.5px;line-height:1.9;color:var(--text-2);margin-bottom:18px;}
.merit .link-more{font-size:13.5px;}

/* ===== 场景演示 ===== */
.scene{display:grid;grid-template-columns:1.35fr .95fr;gap:32px;align-items:center;}
.scene__media{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--glass-bd);
  box-shadow:var(--sh-float);
  aspect-ratio:16/10;
  background:var(--bg-2);
}
.scene__media img{
  width:100%;height:100%;object-fit:cover;
  transition:opacity 300ms var(--ease),transform 500ms var(--ease);
}
.scene__media img.is-fading{opacity:.25;}
.scene__media:hover img{transform:scale(1.04);}
.scene__tag{
  position:absolute;left:20px;bottom:20px;
  padding:9px 16px;border-radius:var(--r-pill);
  background:rgba(7,11,20,.72);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--glass-bd);
  font-size:13px;color:var(--gold-hi);
}
.scene__panel h2{margin-bottom:14px;}
.scene__panel > p{font-size:15px;line-height:1.95;margin-bottom:26px;}
.scene__tabs{display:flex;flex-direction:column;gap:12px;}
.scene__tab{
  text-align:left;
  padding:16px 18px;
  border-radius:var(--r-md);
  border:1px solid var(--glass-bd);
  background:rgba(255,255,255,.03);
  transition:all var(--t) var(--ease);
}
.scene__tab b{display:block;font-size:15.5px;color:var(--text);font-weight:600;margin-bottom:4px;}
.scene__tab span{display:block;font-size:13px;color:var(--text-3);line-height:1.7;}
.scene__tab:hover{border-color:rgba(200,164,100,.45);background:rgba(200,164,100,.07);}
.scene__tab.is-active{border-color:var(--gold);background:rgba(200,164,100,.12);box-shadow:var(--sh-glass);}
.scene__tab.is-active b{color:var(--gold-hi);}

/* ===== 最新信息（CMS） ===== */
.post-list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.post-card{
  display:flex;flex-direction:column;
  border-radius:var(--r-lg);
  border:1px solid var(--glass-bd);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.022));
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--sh-glass);
  overflow:hidden;
  transition:transform var(--t) var(--ease),border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(200,164,100,.5);box-shadow:var(--sh-float);}
.post-card__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-2);}
.post-card__media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease);}
.post-card:hover .post-card__media img{transform:scale(1.04);}
.post-card__media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(7,11,20,.65));}
.post-card__badge{
  position:absolute;left:16px;top:16px;z-index:2;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12.5px;
  border:1px solid rgba(94,140,138,.6);
  background:rgba(94,140,138,.22);
  color:#BFDBDA;
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}
.post-card__body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.post-card__title{
  font-family:var(--font-serif);
  font-size:18.5px;line-height:1.5;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:10px;
}
.post-card:hover .post-card__title{color:var(--gold-hi);}
.post-card__excerpt{
  font-size:14px;line-height:1.85;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:18px;
}
.post-card__foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:16px;border-top:1px solid var(--line);
}
.post-card__foot time{font-size:14px;color:var(--text-3);font-family:var(--font-num);}
.post-card__arrow{
  width:34px;height:34px;border-radius:50%;
  border:1px solid var(--glass-bd-2);
  display:flex;align-items:center;justify-content:center;
  color:var(--gold);font-size:15px;
  transition:all var(--t) var(--ease);
}
.post-card:hover .post-card__arrow{background:rgba(200,164,100,.16);border-color:var(--gold);transform:translateX(3px);}
.empty-state{
  grid-column:1 / -1;
  padding:56px 28px;
  border-radius:var(--r-lg);
  border:1px dashed var(--glass-bd-2);
  background:rgba(255,255,255,.03);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  text-align:center;
}
.empty-state svg{width:40px;height:40px;stroke:var(--text-3);fill:none;stroke-width:1.5;margin:0 auto 16px;}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:20px;}
.skeleton{grid-column:span 1;border-radius:var(--r-lg);border:1px solid var(--glass-bd);background:rgba(255,255,255,.03);overflow:hidden;}
.skeleton__block{background:rgba(255,255,255,.06);animation:breathe 1.8s ease-in-out infinite;}
.skeleton__media{aspect-ratio:16/10;}
.skeleton__line{height:14px;margin:16px 24px;border-radius:6px;}
.skeleton__line--short{width:40%;}
@keyframes breathe{0%,100%{opacity:.5;}50%{opacity:.9;}}

/* ===== 社会认同 ===== */
.logo-wall{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:26px 30px;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:rgba(255,255,255,.025);
  margin-bottom:44px;
}
.logo-wall span{
  font-size:14px;letter-spacing:.12em;
  color:var(--text-3);
  filter:grayscale(1);
  transition:color var(--t) var(--ease),filter var(--t) var(--ease);
}
.logo-wall span:hover{color:var(--gold);filter:grayscale(0);}
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--line);
  margin-bottom:48px;
}
.stat{background:var(--bg-1);padding:26px 24px;}
.stat b{display:block;font-family:var(--font-num);font-size:28px;color:var(--gold-hi);line-height:1.2;}
.stat span{display:block;font-size:13.5px;color:var(--text-3);margin-top:6px;}
.review-scroll{
  display:flex;gap:22px;
  overflow-x:auto;
  padding-bottom:8px;
  scroll-snap-type:x mandatory;
  -ms-overflow-style:none;scrollbar-width:none;
}
.review-scroll::-webkit-scrollbar{display:none;}
.review{
  flex:0 0 340px;
  scroll-snap-align:start;
  padding:26px;
  border-radius:var(--r-lg);
  border:1px solid var(--glass-bd);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
}
.review__stars{color:var(--gold);font-size:13px;letter-spacing:3px;margin-bottom:14px;}
.review p{font-size:14.5px;line-height:1.9;color:var(--text-2);margin-bottom:18px;}
.review__who{display:flex;align-items:center;gap:12px;padding-top:16px;border-top:1px solid var(--line);}
.review__avatar{
  width:38px;height:38px;border-radius:50%;
  border:1px solid rgba(200,164,100,.4);
  background:rgba(200,164,100,.12);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;color:var(--gold-hi);font-family:var(--font-serif);
}
.review__who b{display:block;font-size:14px;color:var(--text);font-weight:600;}
.review__who span{display:block;font-size:12.5px;color:var(--text-3);}

/* ===== 分类入口 ===== */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.cat-card{
  display:flex;flex-direction:column;
  padding:24px;
  border-radius:var(--r-lg);
  border:1px solid var(--glass-bd);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--sh-glass);
  transition:transform var(--t) var(--ease),border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.cat-card:hover{transform:translateY(-4px);border-color:rgba(200,164,100,.5);box-shadow:var(--sh-float);}
.cat-card__idx{font-family:var(--font-num);font-size:13px;color:var(--gold);letter-spacing:.1em;margin-bottom:14px;}
.cat-card h3{font-size:18px;margin-bottom:10px;}
.cat-card p{font-size:13.5px;line-height:1.85;color:var(--text-2);margin-bottom:18px;}
.cat-card .link-more{margin-top:auto;font-size:13.5px;}

/* ===== FAQ ===== */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.6fr;gap:40px;align-items:start;}
.faq-list{
  border-radius:var(--r-lg);
  border:1px solid var(--glass-bd);
  background:linear-gradient(160deg,rgba(255,255,255,.065),rgba(255,255,255,.02));
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--sh-glass);
  overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;text-align:left;
  min-height:60px;
  display:flex;align-items:center;gap:16px;
  padding:18px 24px;
  font-size:16px;color:var(--text);
}
.faq-q:hover{color:var(--gold-hi);}
.faq-q__mark{
  width:26px;height:26px;flex-shrink:0;
  border-radius:8px;
  border:1px solid rgba(200,164,100,.5);
  color:var(--gold);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-family:var(--font-serif);
}
.faq-q__text{flex:1;line-height:1.6;}
.faq-q__icon{
  flex-shrink:0;width:22px;height:22px;position:relative;
  transition:transform var(--t) var(--ease);
}
.faq-q__icon::before,
.faq-q__icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--gold);border-radius:2px;
}
.faq-q__icon::before{width:12px;height:1.5px;transform:translate(-50%,-50%);}
.faq-q__icon::after{width:1.5px;height:12px;transform:translate(-50%,-50%);}
.faq-q[aria-expanded="true"] .faq-q__icon{transform:rotate(45deg);}
.faq-a{
  display:grid;grid-template-rows:0fr;
  transition:grid-template-rows 300ms var(--ease);
}
.faq-a.is-open{grid-template-rows:1fr;}
.faq-a > div{overflow:hidden;}
.faq-a p{padding:0 24px 22px 66px;font-size:15px;line-height:1.9;color:var(--text-2);}

/* ===== CTA ===== */
.cta-band{
  position:relative;
  padding:52px 48px;
  border-radius:var(--r-lg);
  border:1px solid rgba(200,164,100,.28);
  background:
    radial-gradient(720px 320px at 88% 10%,rgba(200,164,100,.20),transparent 60%),
    linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--sh-float);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
}
.cta-band h2{margin-bottom:12px;}
.cta-band p{font-size:15px;max-width:600px;}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;
  background:var(--bg);
  border-top:1px solid var(--line);
  padding:72px 0 0;
  margin-top:20px;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,164,100,.7),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.35fr;
  gap:40px;
  padding-bottom:52px;
}
.footer-brand__logo{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand__main{font-family:var(--font-serif);font-size:18px;color:var(--gold-hi);font-weight:700;letter-spacing:.03em;}
.footer-brand__sub{display:block;font-size:11.5px;color:var(--text-3);letter-spacing:.14em;margin-top:3px;}
.footer-brand p{font-size:13.5px;line-height:1.9;color:var(--text-3);max-width:320px;}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:18px;letter-spacing:.06em;}
.footer-col ul li{margin-bottom:11px;}
.footer-col a{font-size:13.5px;color:var(--text-3);}
.footer-col a:hover{color:var(--gold);}
.footer-form label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px;}
.footer-form__row{display:flex;gap:8px;margin-bottom:10px;}
.footer-form input{
  flex:1;height:44px;padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--glass-bd);
  background:rgba(255,255,255,.05);
  font-size:14px;color:var(--text);
}
.footer-form input::placeholder{color:var(--text-3);}
.footer-form input:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(200,164,100,.2);}
.footer-form input.is-error{border-color:var(--clay);}
.footer-form__msg{font-size:13px;color:var(--clay);min-height:18px;margin-bottom:8px;}
.footer-form__msg.is-ok{color:var(--mist);}
.footer-form .btn{width:100%;}
.footer-contact{font-size:13.5px;color:var(--text-3);line-height:1.9;margin-top:16px;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-3);}
.footer-bottom__links{display:flex;gap:18px;align-items:center;flex-wrap:wrap;}
.footer-bottom__links a{font-size:13px;color:var(--text-3);}
.footer-bottom__links a:hover{color:var(--gold);}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--r-pill);
  border:1px solid var(--glass-bd-2);
  font-size:13px;color:var(--text-2);
}
.to-top:hover{border-color:var(--gold);color:var(--gold-hi);background:rgba(200,164,100,.08);}

/* ===== 底部转化条 ===== */
.convert-bar{
  position:fixed;
  left:50%;bottom:20px;transform:translateX(-50%);
  z-index:50;
  width:calc(100% - 40px);max-width:720px;
  display:flex;align-items:center;gap:16px;
  padding:12px 14px 12px 22px;
  border-radius:var(--r-pill);
  border:1px solid var(--glass-bd);
  background:rgba(13,21,36,.78);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--sh-float);
  transition:opacity 300ms var(--ease),transform 300ms var(--ease);
}
.convert-bar.is-hidden{opacity:0;transform:translateX(-50%) translateY(24px);pointer-events:none;}
.convert-bar__text{flex:1;font-size:14px;color:var(--text-2);line-height:1.5;}
.convert-bar__actions{display:flex;align-items:center;gap:10px;}
.convert-bar__close{
  width:34px;height:34px;border-radius:50%;
  border:1px solid var(--line);
  color:var(--text-3);font-size:18px;line-height:1;
  display:flex;align-items:center;justify-content:center;
}
.convert-bar__close:hover{color:var(--text);border-color:var(--glass-bd-2);}

/* ===== 响应式 ===== */
@media (max-width:1439px){
  .container{max-width:1140px;}
}
@media (max-width:1199px){
  :root{--sec:88px;}
  .nav__menu{gap:0;}
  .nav__link{padding:9px 10px;font-size:14px;}
  .nav__lead{display:none;}
  .hero__text{grid-column:1 / span 6;}
  .hero__panel{grid-column:7 / span 6;}
  .cat-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1023px){
  :root{--sec:72px;}
  body{padding-bottom:86px;}
  .container{padding:0 24px;}
  .nav__menu{display:none;}
  .nav__burger{display:flex;}
  .nav__cta{display:none;}
  .hero{padding:120px 0 48px;}
  .hero__grid{grid-template-columns:1fr;gap:32px;}
  .hero__text,.hero__panel{grid-column:1 / -1;}
  .hero__sub{max-width:none;}
  .merits{grid-template-columns:1fr 1fr;}
  .merit--lift{transform:none;}
  .merit--lift:hover{transform:translateY(-4px);}
  .merit:first-child{grid-column:1 / -1;}
  .scene{grid-template-columns:1fr;gap:26px;}
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:40px 30px;}
}
@media (max-width:767px){
  :root{--sec:56px;}
  body{padding-bottom:82px;font-size:15.5px;}
  .container{padding:0 18px;}
  .section__head{margin-bottom:30px;}
  .hero{min-height:88svh;padding:104px 0 40px;}
  .hero__actions{flex-direction:column;align-items:stretch;}
  .hero__actions .btn{width:100%;}
  .hero__bottom{margin-top:34px;padding-top:20px;gap:20px;}
  .trust-row{gap:24px;}
  .trust-item b{font-size:22px;}
  .merits{grid-template-columns:1fr;gap:18px;}
  .merit{padding:24px 22px;}
  .post-list{grid-template-columns:1fr;}
  .scene__tabs{flex-direction:row;overflow-x:auto;padding-bottom:6px;-ms-overflow-style:none;scrollbar-width:none;}
  .scene__tabs::-webkit-scrollbar{display:none;}
  .scene__tab{flex:0 0 220px;}
  .cat-grid{grid-template-columns:1fr;}
  .logo-wall{padding:20px;gap:18px;justify-content:flex-start;}
  .stat{ padding:20px 18px;}
  .stat b{font-size:24px;}
  .review{flex:0 0 82%;}
  .faq-q{padding:16px 18px;font-size:15.5px;}
  .faq-a p{padding:0 18px 20px 58px;font-size:14.5px;}
  .cta-band{padding:32px 22px;flex-direction:column;align-items:flex-start;}
  .cta-band__actions{width:100%;flex-direction:column;}
  .cta-band__actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px;}
  .convert-bar{
    left:0;right:0;bottom:0;transform:none;
    width:100%;max-width:none;border-radius:0;
    border-left:0;border-right:0;border-bottom:0;
    padding:10px 14px calc(10px + env(safe-area-inset-bottom));
    gap:10px;
  }
  .convert-bar.is-hidden{transform:translateY(100%);}
  .convert-bar__text{font-size:13px;}
  .convert-bar__actions .btn{flex:0 0 auto;}
  .convert-bar__actions{flex:1;justify-content:flex-end;}
}
@media (max-width:380px){
  body{font-size:15px;}
  h1{font-size:26px;}
  .brand__main{font-size:15px;}
  .trust-item b{font-size:20px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
  .hero__bg{animation:none;transform:none;}
}

/* roulang page: article */
:root{
  --bg:#070B14;
  --bg-1:#0D1524;
  --bg-2:#121C30;
  --glass:rgba(255,255,255,.06);
  --glass-2:rgba(255,255,255,.045);
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.12);
  --gold:#C8A464;
  --gold-hi:#E7D3A1;
  --gold-lo:#8E7239;
  --mist:#5E8C8A;
  --brick:#C9603F;
  --tx:#F2F5FA;
  --tx-2:#A9B6CA;
  --tx-3:#6F7D93;
  --r10:10px;
  --r16:16px;
  --r22:22px;
  --pill:999px;
  --sh-glass:0 8px 30px rgba(0,0,0,.45);
  --sh-float:0 16px 44px rgba(0,0,0,.55);
  --sh-glow:0 0 0 1px rgba(200,164,100,.5), 0 8px 28px rgba(200,164,100,.28);
  --tr:220ms cubic-bezier(.2,.7,.3,1);
  --serif:"Noto Serif SC","Songti SC","PingFang SC",Georgia,serif;
  --sans:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC",system-ui,-apple-system,"Segoe UI",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(--tx);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  letter-spacing:.01em;
  overflow-x:hidden;
  padding-bottom:0;
}
img{max-width:100%;display:block;border-radius:0}
a{color:inherit;text-decoration:none;transition:color var(--tr),border-color var(--tr),background-color var(--tr)}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:600;letter-spacing:.01em;line-height:1.25}
p{margin:0}
table{border-collapse:collapse;width:100%}
:focus{outline:none}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:6px}
::selection{background:rgba(200,164,100,.32);color:#fff}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1440px){ .container{max-width:1280px} }

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--pill);
  font-size:14.5px;font-weight:500;letter-spacing:.02em;
  padding:14px 28px;line-height:1;
  transition:transform var(--tr),box-shadow var(--tr),background-color var(--tr),border-color var(--tr),color var(--tr);
  white-space:nowrap;
}
.btn--gold{
  background:linear-gradient(135deg,#E7D3A1 0%,#C8A464 100%);
  color:#14100A;box-shadow:var(--sh-glow);font-weight:600;
}
.btn--gold:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(200,164,100,.65),0 12px 34px rgba(200,164,100,.38)}
.btn--gold:active{transform:translateY(1px)}
.btn--glass{
  border:1px solid rgba(255,255,255,.22);color:var(--tx);background:transparent;
}
.btn--glass:hover{border-color:rgba(200,164,100,.7);background:rgba(200,164,100,.10)}
.btn--sm{padding:10px 18px;font-size:13.5px}
.btn--lg{padding:16px 34px;font-size:15.5px}
.btn--block{width:100%}
.btn:disabled,.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}
.btn__spinner{
  width:14px;height:14px;border-radius:50%;
  border:2px solid rgba(20,16,10,.28);border-top-color:#14100A;
  display:none;animation:spin .7s linear infinite;
}
.btn.is-loading .btn__spinner{display:block}
@keyframes spin{to{transform:rotate(360deg)}}
.text-btn{
  color:var(--gold);font-size:14.5px;font-weight:500;
  border-bottom:1px solid transparent;padding-bottom:2px;
}
.text-btn:hover{color:var(--gold-hi);border-bottom-color:var(--gold-hi)}

/* ============ 导航 ============ */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:900;
  background:rgba(7,11,20,.28);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background-color var(--tr),height var(--tr),box-shadow var(--tr);
}
.site-header.is-scrolled{
  background:rgba(7,11,20,.92);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.nav__inner{
  display:flex;align-items:center;gap:24px;
  height:76px;transition:height var(--tr);
}
.site-header.is-scrolled .nav__inner{height:64px}
.nav__logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand__mark{
  width:38px;height:38px;flex:0 0 38px;
  display:grid;place-items:center;
  border-radius:12px;
  font-family:var(--serif);font-size:15px;font-weight:700;color:var(--gold-hi);
  background:linear-gradient(140deg,rgba(200,164,100,.28),rgba(200,164,100,.06));
  border:1px solid rgba(200,164,100,.42);
  letter-spacing:.04em;
}
.nav__logo-text{display:flex;flex-direction:column;line-height:1.15}
.nav__logo-main{font-family:var(--serif);font-size:17px;font-weight:700;color:var(--gold-hi);letter-spacing:.06em}
.nav__logo-sub{font-size:11.5px;color:var(--tx-3);letter-spacing:.12em}
.nav__menu{display:flex;align-items:center;gap:22px;margin-left:auto}
.nav__lead{font-size:12.5px;color:var(--tx-3);letter-spacing:.06em;padding-right:6px;border-right:1px solid var(--line)}
.nav__link{
  position:relative;font-size:14.5px;color:var(--tx-2);padding:6px 0;
  transition:color var(--tr);
}
.nav__link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--gold);transform:scaleX(0);transform-origin:left;
  transition:transform var(--tr);
}
.nav__link:hover{color:var(--tx)}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link.is-active{color:var(--gold)}
.nav__link.is-active::after{transform:scaleX(1)}
.nav__actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav__icon{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--tx-2);
  transition:border-color var(--tr),color var(--tr),background-color var(--tr);
}
.nav__icon:hover{border-color:rgba(200,164,100,.7);color:var(--gold-hi);background:rgba(200,164,100,.08)}
.nav__search{
  display:none;align-items:center;gap:8px;
  border:1px solid var(--line-strong);border-radius:var(--pill);
  background:var(--glass);padding:6px 14px;
}
.nav__search.is-open{display:flex}
.nav__search input{
  background:none;border:0;color:var(--tx);font-size:14px;width:150px;
}
.nav__search input::placeholder{color:var(--tx-3)}
.nav__search input:focus-visible{outline:none}
.nav__burger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line-strong);place-items:center;
}
.nav__burger span{display:block;width:18px;height:1.6px;background:var(--tx);margin:3px 0;transition:transform var(--tr),opacity var(--tr)}

/* 抽屉 */
.drawer{
  position:fixed;inset:0;z-index:1000;
  background:rgba(7,11,20,.96);
  backdrop-filter:blur(20px) saturate(140%);
  -webkit-backdrop-filter:blur(20px) saturate(140%);
  padding:96px 24px 120px;
  transform:translateY(-100%);opacity:0;pointer-events:none;
  transition:transform 320ms cubic-bezier(.2,.7,.3,1),opacity 320ms;
  overflow-y:auto;
}
.drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
.drawer__close{
  position:absolute;top:20px;right:20px;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line-strong);display:grid;place-items:center;font-size:18px;color:var(--tx-2);
}
.drawer__title{font-size:12.5px;color:var(--tx-3);letter-spacing:.14em;margin-bottom:12px}
.drawer__link{
  display:block;padding:18px 4px;font-size:17px;color:var(--tx);
  border-bottom:1px solid var(--line);
}
.drawer__link.is-active{color:var(--gold)}
.drawer__cta{position:fixed;left:24px;right:24px;bottom:28px}

/* ============ 页面顶部 ============ */
.page-shell{position:relative;padding-top:76px}
.page-backdrop{
  position:absolute;inset:0 0 auto 0;height:420px;overflow:hidden;z-index:0;
  background:url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
}
.page-backdrop::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.72) 0%,rgba(7,11,20,.88) 55%,var(--bg) 100%);
}
.page-shell > *{position:relative;z-index:1}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding:28px 0 0;font-size:13.5px;color:var(--tx-3);
}
.crumb a{color:var(--tx-2)}
.crumb a:hover{color:var(--gold-hi)}
.crumb__sep{color:var(--tx-3);opacity:.6}
.crumb__now{color:var(--gold);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头 ============ */
.article-head{padding:34px 0 40px;border-bottom:1px solid var(--line)}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;padding:6px 14px;border-radius:var(--pill);
  border:1px solid var(--line-strong);background:var(--glass);color:var(--tx-2);
}
.pill--mist{border-color:rgba(94,140,138,.55);color:#9DC2C0;background:rgba(94,140,138,.10)}
.pill--gold{border-color:rgba(200,164,100,.5);color:var(--gold-hi);background:rgba(200,164,100,.10)}
.pill--brick{border-color:rgba(201,96,63,.55);color:#E39A80;background:rgba(201,96,63,.12)}
.article-head h1{
  font-size:clamp(28px,3.6vw,40px);line-height:1.32;margin:18px 0 0;
  max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;
  margin-top:22px;font-size:13.5px;color:var(--tx-3);
}
.article-meta__item{display:inline-flex;align-items:center;gap:7px}
.article-meta__dot{width:4px;height:4px;border-radius:50%;background:var(--gold-lo)}
.share-group{display:flex;align-items:center;gap:8px;margin-left:auto}
.share-btn{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line-strong);
  display:grid;place-items:center;color:var(--tx-2);font-size:13px;
  transition:border-color var(--tr),color var(--tr),background-color var(--tr);
}
.share-btn:hover{border-color:rgba(200,164,100,.7);color:var(--gold-hi);background:rgba(200,164,100,.08)}

/* ============ 文章主体栅格 ============ */
.article-wrap{padding:56px 0 0}
.article-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:56px;
  align-items:start;
}
.article-body{
  max-width:800px;font-size:17px;line-height:2.0;color:#DCE4EF;
}
.article-body > * + *{margin-top:1.2em}
.article-body h2{
  position:relative;
  font-size:clamp(21px,2.4vw,27px);
  line-height:1.4;color:var(--tx);
  padding-left:18px;margin-top:2.2em;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--gold-hi),var(--gold-lo));
}
.article-body h3{
  font-size:clamp(18px,2vw,21px);color:var(--tx);margin-top:1.9em;
}
.article-body p{margin:0}
.article-body a{color:var(--gold);border-bottom:1px solid rgba(200,164,100,.4)}
.article-body a:hover{color:var(--gold-hi);border-bottom-color:var(--gold-hi)}
.article-body strong{color:var(--tx);font-weight:600}
.article-body blockquote{
  margin:1.8em 0;padding:20px 24px;
  border-left:3px solid var(--gold);
  background:var(--glass);border-radius:0 var(--r16) var(--r16) 0;
  color:var(--tx-2);font-size:16px;
}
.article-body ul,.article-body ol{margin:1.4em 0;padding-left:0}
.article-body ul li,.article-body ol li{
  position:relative;padding-left:24px;margin:.7em 0;color:var(--tx-2);
}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.78em;width:7px;height:7px;border-radius:2px;
  background:var(--gold);transform:rotate(45deg);
}
.article-body ol{counter-reset:li}
.article-body ol li{counter-increment:li}
.article-body ol li::before{
  content:counter(li,decimal-leading-zero);
  position:absolute;left:0;top:0;font-size:13px;color:var(--gold);font-family:var(--sans);
}
.article-body img{border-radius:var(--r16);margin:1.8em 0 .8em;width:100%;height:auto}
.article-body figcaption{font-size:13px;color:var(--tx-3);text-align:center;line-height:1.7}
.article-body .table-wrap{
  overflow-x:auto;margin:1.8em 0;border:1px solid var(--line);border-radius:var(--r16);
  background:var(--glass-2);
}
.article-body table{min-width:520px;font-size:15px;line-height:1.8}
.article-body thead th{
  background:rgba(200,164,100,.10);color:var(--gold-hi);
  font-weight:600;text-align:left;padding:14px 18px;white-space:nowrap;
}
.article-body tbody td{padding:13px 18px;border-top:1px solid var(--line);color:var(--tx-2)}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.025)}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.4em 0}

.empty-state{
  background:var(--glass);border:1px solid var(--line-strong);border-radius:var(--r22);
  padding:52px 32px;text-align:center;box-shadow:var(--sh-glass);
}
.empty-state__icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:18px;
  display:grid;place-items:center;border:1px solid rgba(200,164,100,.4);
  color:var(--gold);background:rgba(200,164,100,.08);font-size:22px;
}
.empty-state h3{font-size:20px;margin-bottom:10px}
.empty-state p{color:var(--tx-3);font-size:14.5px;margin-bottom:22px}

/* ============ 侧栏 ============ */
.side-card{
  background:var(--glass);border:1px solid var(--line-strong);border-radius:var(--r22);
  padding:24px;box-shadow:var(--sh-glass);backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
}
.side-card + .side-card{margin-top:24px}
.side-card__title{
  font-size:15px;font-family:var(--sans);font-weight:600;color:var(--tx);
  padding-bottom:14px;margin-bottom:8px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:8px;
}
.side-card__title::before{content:"";width:4px;height:14px;border-radius:3px;background:var(--gold)}
.side-list li{border-bottom:1px solid var(--line)}
.side-list li:last-child{border-bottom:0}
.side-list a{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;font-size:14.5px;color:var(--tx-2);line-height:1.7;
  transition:color var(--tr),transform var(--tr);
}
.side-list a:hover{color:var(--gold-hi);transform:translateX(3px)}
.side-list__idx{
  font-size:12px;color:var(--gold-lo);font-family:var(--sans);flex:0 0 22px;
  padding-top:2px;letter-spacing:.04em;
}
.side-cta{text-align:left}
.side-cta img{border-radius:var(--r16);aspect-ratio:16/10;object-fit:cover;margin-bottom:16px;width:100%}
.side-cta h3{font-size:18px;margin-bottom:10px}
.side-cta p{font-size:14px;color:var(--tx-3);line-height:1.85;margin-bottom:18px}
.side-sticky{position:sticky;top:96px}

/* ============ 文末区 ============ */
.article-foot{margin-top:64px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding-top:8px}
.tag-row__label{font-size:13px;color:var(--tx-3);margin-right:4px}
.tag{
  font-size:13px;padding:7px 15px;border-radius:var(--pill);
  border:1px solid var(--line-strong);background:var(--glass);color:var(--tx-2);
  transition:border-color var(--tr),color var(--tr),background-color var(--tr);
}
.tag:hover{border-color:rgba(200,164,100,.7);color:var(--gold-hi);background:rgba(200,164,100,.08)}

.pager{
  display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:36px;
}
.pager__card{
  display:block;padding:22px 24px;border-radius:var(--r22);
  background:var(--glass);border:1px solid var(--line-strong);
  box-shadow:var(--sh-glass);transition:transform var(--tr),border-color var(--tr),box-shadow var(--tr);
}
.pager__card:hover{transform:translateY(-4px);border-color:rgba(200,164,100,.5);box-shadow:var(--sh-float)}
.pager__label{font-size:12.5px;color:var(--gold);letter-spacing:.08em}
.pager__title{display:block;margin-top:10px;font-size:16px;color:var(--tx);line-height:1.7}
.pager__card--next{text-align:right}

.related{margin-top:52px}
.related__head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px;
}
.related__head h2{font-size:22px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.related-card{
  display:block;border-radius:var(--r22);overflow:hidden;
  background:var(--glass);border:1px solid var(--line-strong);
  box-shadow:var(--sh-glass);transition:transform var(--tr),border-color var(--tr),box-shadow var(--tr);
}
.related-card:hover{transform:translateY(-4px);border-color:rgba(200,164,100,.5);box-shadow:var(--sh-float)}
.related-card__img{aspect-ratio:4/3;overflow:hidden}
.related-card__img img{width:100%;height:100%;object-fit:cover;transition:transform 300ms cubic-bezier(.2,.7,.3,1)}
.related-card:hover .related-card__img img{transform:scale(1.04)}
.related-card__body{padding:18px 20px 22px}
.related-card__body h3{font-size:16px;line-height:1.65;font-family:var(--sans);font-weight:500;color:var(--tx)}
.related-card__time{display:block;margin-top:12px;font-size:13px;color:var(--tx-3)}

.back-row{margin-top:44px;text-align:center}

/* CTA 条 */
.cta-band{
  margin:72px 0 0;padding:44px 40px;border-radius:var(--r22);
  background:linear-gradient(120deg,rgba(200,164,100,.14),rgba(94,140,138,.12) 60%,rgba(255,255,255,.03));
  border:1px solid var(--line-strong);box-shadow:var(--sh-glass);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h3{font-size:clamp(20px,2.2vw,25px);margin-bottom:10px}
.cta-band p{color:var(--tx-2);font-size:14.5px;max-width:560px}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:110px;background:var(--bg);position:relative;
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,164,100,.75),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:44px;
  padding:72px 0 48px;
}
.footer-brand__logo{display:flex;align-items:flex-start;gap:12px;margin-bottom:18px}
.footer-brand__main{
  display:block;font-family:var(--serif);font-size:17px;font-weight:700;
  color:var(--gold-hi);letter-spacing:.06em;line-height:1.2;
}
.footer-brand__sub{display:block;font-size:11.5px;color:var(--tx-3);letter-spacing:.12em;margin-top:3px}
.footer-brand p{font-size:14px;color:var(--tx-3);line-height:1.9;max-width:340px}
.footer-col h4{
  font-family:var(--sans);font-size:14px;font-weight:600;color:var(--tx);
  margin-bottom:18px;letter-spacing:.06em;
}
.footer-col ul li{margin-bottom:12px}
.footer-col ul a{font-size:14px;color:var(--tx-3)}
.footer-col ul a:hover{color:var(--gold-hi)}
.footer-form label{display:block;font-size:13px;color:var(--tx-2);margin-bottom:8px}
.footer-form__row{display:flex;gap:10px}
.footer-form input{
  flex:1;min-width:0;padding:12px 16px;border-radius:var(--pill);
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
  color:var(--tx);font-size:14px;transition:border-color var(--tr),box-shadow var(--tr);
}
.footer-form input::placeholder{color:var(--tx-3)}
.footer-form input:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(200,164,100,.22);outline:none}
.footer-form input.is-error{border-color:var(--brick);box-shadow:0 0 0 3px rgba(201,96,63,.18)}
.footer-form__msg{font-size:13px;color:var(--tx-3);margin-top:10px;min-height:18px}
.footer-form__msg.is-error{color:#E39A80}
.footer-form__msg.is-ok{color:#9DC2C0}
.footer-contact{font-size:13.5px;color:var(--tx-3);line-height:1.9;margin-top:18px}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 30px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:var(--tx-3);
}
.footer-bottom__links{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.footer-bottom__links a:hover{color:var(--gold-hi)}
.to-top{
  font-size:13px;color:var(--tx-2);border:1px solid var(--line-strong);
  padding:7px 14px;border-radius:var(--pill);transition:border-color var(--tr),color var(--tr);
}
.to-top:hover{border-color:rgba(200,164,100,.7);color:var(--gold-hi)}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav__menu{display:none}
  .nav__lead{display:none}
  .nav__burger{display:grid}
  .article-grid{grid-template-columns:1fr;gap:40px}
  .side-sticky{position:static}
  .article-body{max-width:none}
  .related-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .nav__inner{height:66px}
  .site-header.is-scrolled .nav__inner{height:60px}
  .nav__actions .btn--gold{display:none}
  .page-shell{padding-top:66px}
  .article-head{padding:26px 0 30px}
  .article-wrap{padding:40px 0 0}
  .article-body{font-size:16.5px;line-height:1.95}
  .article-meta{gap:12px}
  .share-group{margin-left:0;width:100%}
  .pager{grid-template-columns:1fr}
  .pager__card--next{text-align:left}
  .related-grid{grid-template-columns:1fr}
  .cta-band{padding:32px 22px;flex-direction:column;align-items:flex-start}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;padding:52px 0 36px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .crumb__now{max-width:180px}
}
@media (max-width:380px){
  .article-body{font-size:16px}
  .related__head h2{font-size:19px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --bg:#070B14;
  --bg-1:#0D1524;
  --bg-2:#121C30;
  --glass:rgba(255,255,255,0.06);
  --glass-strong:rgba(255,255,255,0.09);
  --line:rgba(255,255,255,0.12);
  --line-soft:rgba(255,255,255,0.08);
  --gold:#C8A464;
  --gold-hi:#E7D3A1;
  --gold-dim:#8E7239;
  --mist:#5E8C8A;
  --clay:#C9603F;
  --text:#F2F5FA;
  --text-2:#A9B6CA;
  --text-3:#6F7D93;
  --r-10:10px;
  --r-16:16px;
  --r-22:22px;
  --r-pill:999px;
  --shadow-glass:0 8px 30px rgba(0,0,0,0.45);
  --shadow-float:0 16px 44px rgba(0,0,0,0.55);
  --shadow-gold:0 0 0 1px rgba(200,164,100,0.5), 0 8px 28px rgba(200,164,100,0.28);
  --ease:220ms cubic-bezier(0.2,0.7,0.3,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --sans:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --nav-h:76px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(760px 420px at 12% -6%, rgba(200,164,100,0.10), transparent 62%),
    radial-gradient(680px 420px at 92% 8%, rgba(94,140,138,0.10), transparent 60%);
  pointer-events:none;
  z-index:0;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),opacity var(--ease)}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:600;letter-spacing:0.01em}
p{margin:0}
::selection{background:rgba(200,164,100,0.32);color:#fff}
:focus-visible{outline:3px solid rgba(200,164,100,0.72);outline-offset:3px;border-radius:6px}

.container{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 32px;
  position:relative;
  z-index:1;
}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:14px 28px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  letter-spacing:0.02em;
  border:1px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;
  cursor:pointer;
}
.btn--gold{
  background:linear-gradient(135deg,#E7D3A1 0%,#C8A464 100%);
  color:#14100A;
  box-shadow:var(--shadow-gold);
}
.btn--gold:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(200,164,100,0.6),0 14px 36px rgba(200,164,100,0.36)}
.btn--gold:active{transform:translateY(1px)}
.btn--ghost{
  background:rgba(255,255,255,0.03);
  border-color:rgba(255,255,255,0.22);
  color:var(--text);
}
.btn--ghost:hover{border-color:rgba(200,164,100,0.7);background:rgba(200,164,100,0.10);color:var(--gold-hi)}
.btn--sm{padding:10px 20px;font-size:14px}
.btn--lg{padding:16px 34px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}
.btn__spinner{
  width:14px;height:14px;border-radius:50%;
  border:2px solid rgba(20,16,10,0.28);
  border-top-color:#14100A;
  display:none;
  animation:spin .7s linear infinite;
}
.btn.is-loading .btn__spinner{display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--gold);
  position:relative;
}
.link-arrow::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-4px;
  width:100%;
  height:1px;
  background:currentColor;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--ease);
}
.link-arrow:hover::after{transform:scaleX(1)}
.link-arrow:hover{color:var(--gold-hi)}

/* ---------- 标签 / 徽章 ---------- */
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:var(--glass);
  border:1px solid var(--line);
  font-size:13px;
  color:var(--text-2);
  letter-spacing:0.04em;
  backdrop-filter:blur(10px);
}
.pill--mist{border-color:rgba(94,140,138,0.55);color:#9EC2C0;background:rgba(94,140,138,0.10)}
.pill--gold{border-color:rgba(200,164,100,0.5);color:var(--gold-hi);background:rgba(200,164,100,0.08)}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 13px;
  border-radius:var(--r-pill);
  font-size:13px;
  letter-spacing:0.08em;
  background:rgba(94,140,138,0.12);
  border:1px solid rgba(94,140,138,0.45);
  color:#A7C8C5;
}
.badge--clay{background:rgba(201,96,63,0.14);border-color:rgba(201,96,63,0.5);color:#E8A98D;font-size:12px}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:900;
  background:rgba(7,11,20,0.28);
  border-bottom:1px solid var(--line-soft);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  transition:background var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{background:rgba(7,11,20,0.94);box-shadow:0 12px 34px rgba(0,0,0,0.5)}
.nav__inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:var(--nav-h);
  transition:height var(--ease);
}
.site-header.is-scrolled .nav__inner{height:64px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand__mark{
  font-family:var(--serif);
  font-size:19px;
  letter-spacing:0.12em;
  color:var(--gold);
  border:1px solid rgba(200,164,100,0.5);
  border-radius:var(--r-10);
  padding:4px 9px;
  line-height:1;
  transition:box-shadow var(--ease),color var(--ease);
}
.brand:hover .brand__mark{color:var(--gold-hi);box-shadow:0 0 0 1px rgba(200,164,100,0.36)}
.brand__text{display:flex;flex-direction:column;line-height:1.25}
.brand__main{font-family:var(--serif);font-size:15px;color:var(--gold-hi);letter-spacing:0.08em}
.brand__sub{font-size:12px;color:var(--text-3);letter-spacing:0.05em}

.nav__menu{display:flex;align-items:center;gap:20px;flex:1 1 auto;justify-content:center;min-width:0}
.nav__lead{
  font-size:12px;
  color:var(--text-3);
  letter-spacing:0.06em;
  padding-right:14px;
  border-right:1px solid var(--line);
  white-space:nowrap;
}
.nav__link{
  font-size:14px;
  color:var(--text-2);
  padding:6px 2px;
  position:relative;
  white-space:nowrap;
}
.nav__link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--gold-hi),var(--gold));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--ease);
}
.nav__link:hover{color:var(--gold-hi)}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link.is-active{color:var(--gold-hi);font-weight:600}
.nav__link.is-active::after{transform:scaleX(1)}

.nav__actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:42px;height:42px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:rgba(255,255,255,0.03);
  color:var(--text-2);
  transition:border-color var(--ease),color var(--ease),background var(--ease);
}
.icon-btn:hover{border-color:rgba(200,164,100,0.6);color:var(--gold-hi);background:rgba(200,164,100,0.10)}
.icon-btn svg{width:18px;height:18px}
.nav-toggle{display:none}
.nav-toggle span{
  display:block;
  width:18px;height:1.6px;
  background:currentColor;
  margin:3px auto;
  transition:transform var(--ease),opacity var(--ease);
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(4.6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-4.6px) rotate(-45deg)}

.nav-search{
  position:absolute;
  left:0;right:0;top:100%;
  background:rgba(7,11,20,0.96);
  border-bottom:1px solid var(--line-soft);
  backdrop-filter:blur(18px) saturate(140%);
  max-height:0;
  overflow:hidden;
  transition:max-height var(--ease),padding var(--ease);
}
.nav-search.is-open{max-height:140px;padding:18px 0}
.nav-search form{display:flex;gap:12px;align-items:center}
.nav-search input{
  flex:1 1 auto;
  background:rgba(255,255,255,0.05);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:12px 20px;
  color:var(--text);
  outline:none;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search input:focus{border-color:rgba(200,164,100,0.75);box-shadow:0 0 0 3px rgba(200,164,100,0.20)}

/* 移动抽屉 */
.drawer{
  position:fixed;
  inset:0;
  z-index:950;
  background:rgba(7,11,20,0.96);
  backdrop-filter:blur(20px) saturate(140%);
  padding:96px 24px 32px;
  transform:translateX(100%);
  transition:transform 280ms cubic-bezier(0.2,0.7,0.3,1);
  overflow-y:auto;
  display:flex;
  flex-direction:column;
}
.drawer.is-open{transform:translateX(0)}
.drawer__lead{font-size:12px;color:var(--text-3);letter-spacing:0.1em;margin-bottom:10px}
.drawer__link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 4px;
  font-size:16px;
  color:var(--text-2);
  border-bottom:1px solid var(--line-soft);
  min-height:52px;
}
.drawer__link.is-active{color:var(--gold-hi);font-weight:600}
.drawer__link:hover{color:var(--gold-hi)}
.drawer__foot{margin-top:auto;padding-top:24px;display:flex;flex-direction:column;gap:12px}
.drawer__foot .btn{width:100%}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);flex-wrap:wrap}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--gold-hi)}
.breadcrumb span[aria-current]{color:var(--gold);font-weight:600}
.breadcrumb .sep{color:var(--text-3);opacity:.7}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:calc(var(--nav-h) + 70px) 0 72px;
  min-height:440px;
  display:flex;
  align-items:center;
  border-bottom:1px solid var(--line-soft);
}
.page-hero__bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  transform:scale(1.06);
  animation:heroDrift 18s ease-out forwards;
}
@keyframes heroDrift{from{transform:scale(1.1)}to{transform:scale(1.02)}}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,0.84) 0%,rgba(7,11,20,0.9) 48%,rgba(7,11,20,0.98) 100%);
}
.page-hero__inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.3fr 0.85fr;
  gap:48px;
  align-items:center;
  width:100%;
}
.page-hero__text .pill{margin:18px 0 16px}
.page-hero h1{
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.16;
  letter-spacing:0.01em;
}
.page-hero h1 em{font-style:normal;color:var(--gold)}
.hero-rule{width:64px;height:2px;background:linear-gradient(90deg,var(--gold-hi),transparent);margin:20px 0 18px;border-radius:2px}
.page-hero__desc{font-size:17px;color:var(--text-2);max-width:600px;line-height:1.95}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

.hero-side{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-22);
  padding:26px 26px 22px;
  box-shadow:var(--shadow-glass);
  backdrop-filter:blur(18px) saturate(140%);
  inset:auto;
}
.hero-side h2{
  font-size:17px;
  color:var(--gold-hi);
  margin-bottom:6px;
  font-family:var(--sans);
  letter-spacing:0.04em;
}
.hero-side__note{font-size:13px;color:var(--text-3);margin-bottom:16px}
.hero-side ul{display:flex;flex-direction:column;gap:14px}
.hero-side li{
  display:flex;
  gap:12px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.8;
  padding-bottom:14px;
  border-bottom:1px solid var(--line-soft);
}
.hero-side li:last-child{border-bottom:0;padding-bottom:0}
.hero-side .num{
  font-family:var(--serif);
  color:var(--gold);
  font-size:13px;
  letter-spacing:0.1em;
  flex:0 0 auto;
  padding-top:1px;
}

/* ---------- 板块 ---------- */
.section{padding:96px 0;position:relative}
.section--tight{padding:72px 0}
.section-head{margin-bottom:44px;max-width:760px}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.3}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px}
.section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;max-width:none}

/* 图文交错 */
.row-media{
  display:grid;
  grid-template-columns:1.05fr 0.95fr;
  gap:56px;
  align-items:center;
  padding:36px 0;
}
.row-media + .row-media{border-top:1px solid var(--line-soft)}
.row-media--reverse .row-media__media{order:2}
.row-media--reverse .row-media__body{order:1}
.row-media__media{
  position:relative;
  border-radius:var(--r-22);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-glass);
  background:var(--bg-1);
}
.row-media__media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform 600ms cubic-bezier(0.2,0.7,0.3,1);
}
.row-media__media:hover img{transform:scale(1.04)}
.row-media__media figcaption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:34px 20px 14px;
  font-size:13px;
  color:var(--text-2);
  background:linear-gradient(180deg,transparent,rgba(7,11,20,0.88));
}
.row-media__body h3{font-size:clamp(20px,2.2vw,26px);line-height:1.35;margin:16px 0 12px}
.row-media__body > p{color:var(--text-2);font-size:16px}
.point-list{margin:22px 0 22px;display:flex;flex-direction:column;gap:12px}
.point-list li{
  position:relative;
  padding-left:22px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.85;
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;top:12px;
  width:8px;height:8px;
  border-radius:2px;
  background:linear-gradient(135deg,var(--gold-hi),var(--gold-dim));
}
.point-list strong{color:var(--text);font-weight:600}

/* 数据条 */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line-soft);
  border:1px solid var(--line);
  border-radius:var(--r-22);
  overflow:hidden;
}
.stat-strip__item{
  background:linear-gradient(180deg,rgba(255,255,255,0.05),rgba(255,255,255,0.02));
  padding:28px 24px;
  text-align:left;
  backdrop-filter:blur(12px);
}
.stat-strip__num{
  font-family:var(--serif);
  font-size:clamp(26px,3vw,34px);
  color:var(--gold-hi);
  line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.stat-strip__label{margin-top:8px;font-size:14px;color:var(--text-3)}

/* 标签索引 */
.tag-cloud{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  padding:30px;
  border-radius:var(--r-22);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-glass);
}
.tag-cloud a{
  padding:8px 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-soft);
  background:rgba(255,255,255,0.03);
  font-size:14px;
  color:var(--text-2);
  transition:border-color var(--ease),color var(--ease),background var(--ease),transform var(--ease);
}
.tag-cloud a:hover{
  border-color:rgba(200,164,100,0.6);
  color:var(--gold-hi);
  background:rgba(200,164,100,0.10);
  transform:translateY(-2px);
}

/* 索引双列 */
.index-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:0 48px;
}
.index-grid a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:16px 2px;
  border-bottom:1px solid var(--line-soft);
  font-size:15px;
  color:var(--text-2);
  min-height:52px;
  transition:color var(--ease),padding var(--ease);
}
.index-grid a:hover{color:var(--gold-hi);padding-left:8px}
.index-grid a span{font-size:13px;color:var(--text-3)}

/* CTA 条 */
.cta-strip{
  position:relative;
  border-radius:var(--r-22);
  border:1px solid var(--line);
  background:
    linear-gradient(120deg,rgba(200,164,100,0.14),rgba(94,140,138,0.10) 55%,rgba(255,255,255,0.03)),
    var(--bg-1);
  padding:44px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  overflow:hidden;
  box-shadow:var(--shadow-glass);
}
.cta-strip::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,164,100,0.8),transparent);
}
.cta-strip h2{font-size:clamp(20px,2.4vw,28px);line-height:1.35}
.cta-strip p{margin-top:12px;color:var(--text-2);font-size:15px;max-width:620px}
.cta-strip__actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:var(--bg);
  border-top:1px solid var(--line-soft);
  margin-top:96px;
  padding:72px 0 0;
  z-index:1;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,164,100,0.75),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:44px;
  padding-bottom:48px;
}
.footer-brand__logo{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand__main{display:block;font-family:var(--serif);font-size:16px;color:var(--gold-hi);letter-spacing:0.08em}
.footer-brand__sub{display:block;font-size:12px;color:var(--text-3);letter-spacing:0.05em}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.9;max-width:360px}
.footer-col h4{
  font-family:var(--sans);
  font-size:14px;
  color:var(--text);
  letter-spacing:0.08em;
  margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;color:var(--text-3)}
.footer-col a:hover{color:var(--gold-hi)}
.footer-form label{display:block;font-size:13px;color:var(--text-2);margin-bottom:10px}
.footer-form__row{display:flex;gap:10px}
.footer-form input{
  flex:1 1 auto;
  min-width:0;
  background:rgba(255,255,255,0.05);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:11px 18px;
  font-size:14px;
  color:var(--text);
  outline:none;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.footer-form input::placeholder{color:var(--text-3)}
.footer-form input:focus{border-color:rgba(200,164,100,0.75);box-shadow:0 0 0 3px rgba(200,164,100,0.20)}
.footer-form input.is-error{border-color:var(--clay)}
.footer-form__msg{font-size:13px;margin-top:10px;min-height:20px;color:var(--mist)}
.footer-form__msg.is-error{color:#E89478}
.footer-contact{margin-top:16px;font-size:13px;color:var(--text-3);line-height:1.9}
.footer-bottom{
  border-top:1px solid var(--line-soft);
  padding:22px 0 30px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-3)}
.footer-bottom__links{display:flex;align-items:center;gap:20px;font-size:13px;color:var(--text-3);flex-wrap:wrap}
.footer-bottom__links a{color:var(--text-3)}
.footer-bottom__links a:hover{color:var(--gold-hi)}
.to-top{
  font-size:13px;
  color:var(--gold);
  border:1px solid rgba(200,164,100,0.42);
  border-radius:var(--r-pill);
  padding:7px 16px;
  min-height:36px;
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.to-top:hover{background:rgba(200,164,100,0.12);color:var(--gold-hi);transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){
  .container{max-width:1200px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav__menu{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;flex-direction:column}
  .nav__actions .btn{display:none}
  .page-hero__inner{grid-template-columns:1fr;gap:34px}
  .page-hero{padding:calc(var(--nav-h) + 56px) 0 56px;min-height:0}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .row-media{grid-template-columns:1fr;gap:28px;padding:32px 0}
  .row-media--reverse .row-media__media{order:1}
  .row-media--reverse .row-media__body{order:2}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .index-grid{grid-template-columns:1fr;gap:0}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:34px 28px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:34px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 18px}
  .brand__main{font-size:14px}
  .brand__mark{font-size:17px;padding:3px 8px}
  .page-hero h1{font-size:clamp(26px,7vw,34px)}
  .page-hero__desc{font-size:16px}
  .hero-actions{gap:12px;flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-side{padding:22px 20px}
  .section{padding:56px 0}
  .section-head{margin-bottom:30px}
  .section-head--split{flex-direction:column;align-items:flex-start;gap:16px}
  .stat-strip{grid-template-columns:1fr}
  .tag-cloud{padding:22px 18px;gap:10px}
  .cta-strip{padding:28px 20px}
  .cta-strip__actions{width:100%;flex-direction:column;align-items:stretch}
  .cta-strip__actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:34px}
  .footer-form__row{flex-direction:column}
  .footer-form__row .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
  .site-footer{margin-top:56px;padding-top:52px}
}
@media (max-width:380px){
  body{font-size:15px}
  .brand__sub{font-size:11px}
  .point-list li{font-size:14px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:0.001ms !important;animation-iteration-count:1 !important;transition-duration:0.001ms !important}
  .page-hero__bg{animation:none;transform:scale(1.02)}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --bg-0:#070B14;
  --bg-1:#0D1524;
  --bg-2:#121C30;
  --glass:rgba(255,255,255,0.06);
  --glass-strong:rgba(255,255,255,0.09);
  --line:rgba(255,255,255,0.08);
  --line-strong:rgba(255,255,255,0.14);
  --gold:#C8A464;
  --gold-hi:#E7D3A1;
  --gold-lo:#8E7239;
  --teal:#5E8C8A;
  --brick:#C9603F;
  --txt:#F2F5FA;
  --txt-2:#A9B6CA;
  --txt-3:#6F7D93;
  --r-10:10px;
  --r-16:16px;
  --r-22:22px;
  --r-pill:999px;
  --sh-glass:0 8px 30px rgba(0,0,0,0.45);
  --sh-float:0 16px 44px rgba(0,0,0,0.55);
  --sh-glow:0 0 0 1px rgba(200,164,100,0.5),0 8px 28px rgba(200,164,100,0.28);
  --ease:220ms cubic-bezier(0.2,0.7,0.3,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--txt);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  padding-bottom:24px;
}
img{max-width:100%;display:block;border-radius:var(--r-16);}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease);}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{border:none;background:none;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:600;letter-spacing:.01em;line-height:1.25;}
p{margin:0;}
:focus-visible{outline:3px solid rgba(200,164,100,.75);outline-offset:3px;border-radius:6px;}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn--gold{
  background:linear-gradient(135deg,#E7D3A1 0%,#C8A464 100%);
  color:#14100A;
  box-shadow:var(--sh-glow);
}
.btn--gold:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(200,164,100,.65),0 12px 34px rgba(200,164,100,.4);}
.btn--gold:active{transform:translateY(1px);}
.btn--ghost{
  background:transparent;
  color:var(--txt);
  border:1px solid rgba(255,255,255,.22);
}
.btn--ghost:hover{border-color:var(--gold);background:rgba(200,164,100,.10);}
.btn--sm{padding:10px 18px;font-size:14px;}
.btn--lg{padding:16px 34px;font-size:16px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;pointer-events:none;}
.btn__spinner{
  display:none;
  width:14px;height:14px;
  border:2px solid rgba(20,16,10,.35);
  border-top-color:#14100A;
  border-radius:50%;
  animation:spin .7s linear infinite;
}
.btn.is-loading .btn__spinner{display:inline-block;}
@keyframes spin{to{transform:rotate(360deg);}}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--gold);
  font-size:14px;
  font-weight:600;
  position:relative;
}
.link-arrow::after{
  content:"";
  position:absolute;
  left:0;bottom:-3px;
  width:0;height:1px;
  background:var(--gold);
  transition:width var(--ease);
}
.link-arrow:hover::after{width:100%;}
.link-arrow:hover{color:var(--gold-hi);}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  font-size:14px;
  line-height:1.5;
  background:var(--glass);
  border:1px solid var(--line-strong);
  color:var(--txt-2);
}
.badge--teal{border-color:rgba(94,140,138,.55);color:#9CC2C0;background:rgba(94,140,138,.12);}
.badge--orange{border-color:rgba(201,96,63,.55);color:#E79579;background:rgba(201,96,63,.12);}
.badge--gold{border-color:rgba(200,164,100,.55);color:var(--gold-hi);background:rgba(200,164,100,.12);}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:90;
  background:rgba(7,11,20,.28);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background var(--ease),box-shadow var(--ease),height var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,11,20,.92);
  box-shadow:0 12px 34px rgba(0,0,0,.5);
}
.nav__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:22px;
  height:76px;
  transition:height var(--ease);
}
.site-header.is-scrolled .nav__inner{height:64px;}
.nav__brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand__mark{
  font-family:var(--serif);
  font-size:20px;
  letter-spacing:.14em;
  color:var(--gold-hi);
  border:1px solid rgba(200,164,100,.5);
  border-radius:var(--r-10);
  padding:5px 9px;
  line-height:1;
  background:rgba(200,164,100,.08);
}
.brand__text{display:flex;flex-direction:column;line-height:1.25;}
.brand__main{font-family:var(--serif);font-size:17px;color:var(--gold-hi);letter-spacing:.06em;}
.brand__sub{font-size:12px;color:var(--txt-3);letter-spacing:.08em;}
.nav__menu{display:flex;align-items:center;gap:22px;flex-wrap:nowrap;}
.nav__lead{font-size:12px;color:var(--txt-3);letter-spacing:.08em;padding-right:14px;border-right:1px solid var(--line);white-space:nowrap;}
.nav__link{
  position:relative;
  font-size:14.5px;
  color:var(--txt-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav__link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--gold);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--ease);
  border-radius:2px;
}
.nav__link:hover{color:var(--txt);}
.nav__link:hover::after{transform:scaleX(1);}
.nav__link.is-active{color:var(--gold-hi);}
.nav__link.is-active::after{transform:scaleX(1);}
.nav__actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav__icon{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  color:var(--txt-2);
  transition:border-color var(--ease),color var(--ease),background var(--ease);
}
.nav__icon:hover{border-color:var(--gold);color:var(--gold-hi);background:rgba(200,164,100,.1);}
.nav__burger{display:none;flex-direction:column;gap:5px;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--line-strong);border-radius:var(--r-pill);}
.nav__burger span{display:block;width:18px;height:2px;background:var(--txt);border-radius:2px;transition:transform var(--ease),opacity var(--ease);}
.nav__burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav__burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav__burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.nav__search{
  border-top:1px solid var(--line);
  background:rgba(7,11,20,.9);
  backdrop-filter:blur(16px);
}
.nav__search[hidden]{display:none;}
.nav__search .container{display:flex;gap:12px;padding-top:14px;padding-bottom:14px;}
.nav__search input{
  flex:1;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-strong);
  border-radius:var(--r-pill);
  padding:11px 20px;
  color:var(--txt);
  outline:none;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.nav__search input::placeholder{color:var(--txt-3);}
.nav__search input:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(200,164,100,.25);}

/* 移动抽屉 */
.drawer{
  position:fixed;
  inset:0;
  z-index:120;
  background:rgba(7,11,20,.96);
  backdrop-filter:blur(20px) saturate(140%);
  -webkit-backdrop-filter:blur(20px) saturate(140%);
  display:flex;
  flex-direction:column;
  padding:88px 24px 24px;
  transform:translateY(-100%);
  opacity:0;
  visibility:hidden;
  transition:transform var(--ease),opacity var(--ease),visibility var(--ease);
}
.drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer__head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;}
.drawer__link{
  display:block;
  padding:16px 4px;
  font-size:17px;
  color:var(--txt-2);
  border-bottom:1px solid var(--line);
}
.drawer__link.is-active{color:var(--gold-hi);}
.drawer__link:hover{color:var(--gold-hi);}
.drawer__foot{margin-top:auto;padding-top:24px;display:flex;flex-direction:column;gap:12px;}

/* ---------- 面包屑 ---------- */
.crumb{padding:104px 0 0;}
.crumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--txt-3);}
.crumb__list a{color:var(--txt-2);}
.crumb__list a:hover{color:var(--gold-hi);}
.crumb__sep{color:var(--txt-3);opacity:.6;}
.crumb__now{color:var(--gold);}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;
  margin-top:22px;
  border-radius:var(--r-22);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--bg-1);
  min-height:430px;
  display:flex;
  align-items:center;
}
.cat-hero__bg{
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  transform:scale(1.02);
  animation:heroDrift 6s ease-out forwards;
}
@keyframes heroDrift{from{transform:scale(1.02);}to{transform:scale(1.06);}}
.cat-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.72) 0%,rgba(7,11,20,.88) 60%,rgba(7,11,20,.96) 100%);
}
.cat-hero__inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.25fr .85fr;
  gap:36px;
  align-items:center;
  width:100%;
  padding:54px 44px;
}
.cat-hero__eyebrow{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px;}
.cat-hero h1{
  font-size:clamp(30px,4vw,44px);
  line-height:1.2;
  color:#fff;
}
.cat-hero__rule{width:8px;height:3px;background:var(--gold);border-radius:2px;margin:16px 0 16px;}
.cat-hero__lead{font-size:16.5px;color:var(--txt-2);max-width:52ch;}
.cat-hero__actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px;}
.cat-hero__aside{
  background:var(--glass);
  border:1px solid var(--line-strong);
  border-radius:var(--r-22);
  padding:24px;
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--sh-glass),inset 0 1px 0 rgba(255,255,255,.08);
}
.cat-hero__aside h2{font-size:17px;color:var(--gold-hi);margin-bottom:14px;font-family:var(--sans);font-weight:600;}
.cat-hero__aside li{
  display:flex;
  gap:12px;
  padding:11px 0;
  border-bottom:1px solid var(--line);
  font-size:14.5px;
  color:var(--txt-2);
}
.cat-hero__aside li:last-child{border-bottom:none;padding-bottom:0;}
.cat-hero__aside .idx{
  flex:0 0 auto;
  width:22px;height:22px;
  border-radius:50%;
  border:1px solid rgba(200,164,100,.5);
  color:var(--gold-hi);
  font-size:12px;
  display:flex;align-items:center;justify-content:center;
  margin-top:4px;
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0 0;}
.section__head{max-width:760px;margin-bottom:38px;}
.section__head h2{font-size:clamp(24px,3.2vw,34px);}
.section__head .kicker{
  display:inline-block;
  font-size:13px;
  letter-spacing:.16em;
  color:var(--gold);
  margin-bottom:12px;
  text-transform:uppercase;
}
.section__head p{color:var(--txt-2);margin-top:14px;font-size:15.5px;}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:34px;}
.timeline::before{
  content:"";
  position:absolute;
  left:11px;top:8px;bottom:8px;
  width:1px;
  background:linear-gradient(180deg,rgba(200,164,100,.7),rgba(200,164,100,.12));
}
.tl-item{
  position:relative;
  padding:0 0 40px 30px;
  opacity:0;
  transform:translateY(18px);
  transition:opacity 520ms cubic-bezier(0.2,0.7,0.3,1),transform 520ms cubic-bezier(0.2,0.7,0.3,1);
}
.tl-item.is-visible{opacity:1;transform:translateY(0);}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";
  position:absolute;
  left:-29px;top:7px;
  width:11px;height:11px;
  border-radius:50%;
  background:var(--gold);
  box-shadow:0 0 0 4px rgba(200,164,100,.16),0 0 16px rgba(200,164,100,.55);
}
.tl-item__no{
  font-family:"Inter",var(--sans);
  font-variant-numeric:tabular-nums;
  font-size:13px;
  letter-spacing:.18em;
  color:var(--gold);
  display:block;
  margin-bottom:8px;
}
.tl-item__body{
  background:var(--glass);
  border:1px solid var(--line-strong);
  border-radius:var(--r-22);
  padding:24px 26px;
  box-shadow:var(--sh-glass),inset 0 1px 0 rgba(255,255,255,.08);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.tl-item__body:hover{transform:translateY(-4px);border-color:rgba(200,164,100,.42);box-shadow:var(--sh-float);}
.tl-item__body h3{font-size:20px;margin-bottom:10px;}
.tl-item__body p{color:var(--txt-2);font-size:15.5px;}
.tl-item__meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}

/* ---------- 材料对照 ---------- */
.check-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:26px;
  align-items:start;
}
.check-panel{
  background:var(--glass);
  border:1px solid var(--line-strong);
  border-radius:var(--r-22);
  padding:28px;
  box-shadow:var(--sh-glass),inset 0 1px 0 rgba(255,255,255,.08);
}
.check-panel h3{font-size:20px;margin-bottom:6px;}
.check-panel > p{color:var(--txt-3);font-size:14px;margin-bottom:18px;}
.check-row{
  display:flex;
  justify-content:space-between;
  gap:16px;
  padding:14px 0;
  border-bottom:1px solid var(--line);
  font-size:15px;
}
.check-row:last-child{border-bottom:none;}
.check-row dt{color:var(--txt-2);}
.check-row dd{margin:0;color:var(--txt);text-align:right;font-weight:600;}
.check-row dd.is-gold{color:var(--gold-hi);font-family:"Inter",var(--sans);font-variant-numeric:tabular-nums;}
.check-note{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:16px 18px;
  border-radius:var(--r-16);
  background:rgba(94,140,138,.10);
  border:1px solid rgba(94,140,138,.35);
  margin-top:20px;
  font-size:14.5px;
  color:var(--txt-2);
}
.check-note strong{color:#9CC2C0;}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:14px;}
.faq__item{
  background:var(--glass);
  border:1px solid var(--line-strong);
  border-radius:var(--r-22);
  overflow:hidden;
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq__item.is-open{border-color:rgba(200,164,100,.5);box-shadow:0 12px 34px rgba(0,0,0,.45);}
.faq__q{
  width:100%;
  display:flex;
  align-items:center;
  gap:16px;
  min-height:60px;
  padding:18px 24px;
  text-align:left;
  font-size:16.5px;
  font-weight:600;
  color:var(--txt);
}
.faq__mark{
  flex:0 0 auto;
  width:26px;height:26px;
  border-radius:50%;
  border:1px solid rgba(200,164,100,.6);
  color:var(--gold-hi);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;
  font-family:var(--serif);
}
.faq__q span.qtext{flex:1;}
.faq__sign{
  flex:0 0 auto;
  position:relative;
  width:16px;height:16px;
  transition:transform var(--ease);
}
.faq__sign::before,.faq__sign::after{
  content:"";
  position:absolute;
  background:var(--gold);
  border-radius:2px;
}
.faq__sign::before{left:0;top:7px;width:16px;height:2px;}
.faq__sign::after{top:0;left:7px;width:2px;height:16px;}
.faq__item.is-open .faq__sign{transform:rotate(45deg);}
.faq__a{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows var(--ease);
}
.faq__item.is-open .faq__a{grid-template-rows:1fr;}
.faq__a-inner{overflow:hidden;}
.faq__a p{
  padding:0 24px 22px 66px;
  color:var(--txt-2);
  font-size:15px;
  line-height:1.9;
}

/* ---------- 相关内容链接组 ---------- */
.link-cols{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:0 40px;
  border-top:1px solid var(--line);
  padding-top:8px;
}
.link-cols a{
  display:block;
  padding:16px 0;
  border-bottom:1px solid var(--line);
  color:var(--txt-2);
  font-size:15.5px;
  position:relative;
}
.link-cols a::after{
  content:"→";
  position:absolute;
  right:0;
  color:var(--gold);
  opacity:0;
  transform:translateX(-6px);
  transition:opacity var(--ease),transform var(--ease);
}
.link-cols a:hover{color:var(--gold-hi);}
.link-cols a:hover::after{opacity:1;transform:translateX(0);}

/* ---------- CTA 条 ---------- */
.cta-band{
  margin-top:96px;
  background:linear-gradient(135deg,rgba(200,164,100,.14) 0%,rgba(18,28,48,.9) 55%,rgba(13,21,36,.95) 100%);
  border:1px solid rgba(200,164,100,.34);
  border-radius:var(--r-22);
  padding:44px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  box-shadow:var(--sh-glass);
}
.cta-band h2{font-size:clamp(21px,2.4vw,28px);margin-bottom:10px;}
.cta-band p{color:var(--txt-2);font-size:15.5px;max-width:56ch;}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;}

.back-link-row{padding-top:40px;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  background:var(--bg-0);
  border-top:1px solid var(--line);
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,164,100,.75),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.25fr;
  gap:36px;
  padding:64px 0 40px;
}
.footer-brand__logo{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand__main{display:block;font-family:var(--serif);font-size:17px;color:var(--gold-hi);letter-spacing:.06em;}
.footer-brand__sub{display:block;font-size:12px;color:var(--txt-3);letter-spacing:.08em;}
.footer-brand p{color:var(--txt-3);font-size:14px;line-height:1.85;max-width:38ch;}
.footer-col h4{font-family:var(--sans);font-size:15px;color:var(--txt);margin-bottom:16px;font-weight:600;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{color:var(--txt-3);font-size:14px;}
.footer-col ul a:hover{color:var(--gold-hi);}
.footer-form label{display:block;font-size:13px;color:var(--txt-2);margin-bottom:10px;}
.footer-form__row{display:flex;gap:10px;}
.footer-form input{
  flex:1;
  min-width:0;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-strong);
  border-radius:var(--r-pill);
  padding:11px 16px;
  color:var(--txt);
  outline:none;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.footer-form input::placeholder{color:var(--txt-3);}
.footer-form input:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(200,164,100,.25);}
.footer-form input.is-error{border-color:var(--brick);box-shadow:0 0 0 3px rgba(201,96,63,.22);}
.footer-form__msg{font-size:13px;color:var(--txt-3);margin-top:8px;min-height:18px;}
.footer-form__msg.is-error{color:#E79579;}
.footer-form__msg.is-ok{color:#9CC2C0;}
.footer-contact{margin-top:16px;font-size:13px;color:var(--txt-3);line-height:1.9;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--txt-3);
}
.footer-bottom__links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.footer-bottom__links a:hover{color:var(--gold-hi);}
.to-top{
  color:var(--txt-2);
  font-size:13px;
  border:1px solid var(--line-strong);
  border-radius:var(--r-pill);
  padding:7px 14px;
  transition:border-color var(--ease),color var(--ease),background var(--ease);
}
.to-top:hover{border-color:var(--gold);color:var(--gold-hi);background:rgba(200,164,100,.1);}

/* ---------- 响应式 ---------- */
@media (min-width:1440px){
  .container{max-width:1280px;}
}
@media (max-width:1180px){
  .nav__lead{display:none;}
  .nav__menu{gap:16px;}
  .nav__link{font-size:14px;}
}
@media (max-width:1023px){
  .nav__menu{display:none;}
  .nav__burger{display:flex;}
  .nav__cta{display:none;}
  .cat-hero__inner{grid-template-columns:1fr;gap:26px;padding:44px 32px;}
  .section{padding-top:72px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;padding:52px 0 32px;}
}
@media (max-width:767px){
  body{padding-bottom:76px;}
  .container{padding:0 18px;}
  .crumb{padding-top:92px;}
  .cat-hero{min-height:auto;}
  .cat-hero__inner{padding:34px 22px;}
  .cat-hero__actions{flex-direction:column;align-items:stretch;}
  .cat-hero__actions .btn{width:100%;}
  .section{padding-top:56px;}
  .section__head{margin-bottom:26px;}
  .timeline{padding-left:26px;}
  .timeline::before{left:8px;}
  .tl-item{padding-left:22px;padding-bottom:30px;}
  .tl-item::before{left:-23px;}
  .tl-item__body{padding:20px 18px;}
  .check-grid{grid-template-columns:1fr;}
  .link-cols{grid-template-columns:1fr;gap:0;}
  .faq__q{padding:16px 18px;font-size:15.5px;}
  .faq__a p{padding:0 18px 20px 56px;}
  .cta-band{margin-top:56px;padding:30px 22px;flex-direction:column;align-items:flex-start;}
  .cta-band__actions{width:100%;flex-direction:column;}
  .cta-band__actions .btn{width:100%;}
  .site-footer{margin-top:56px;}
  .footer-grid{grid-template-columns:1fr;padding:44px 0 28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
}
@media (max-width:520px){
  body{font-size:15.5px;}
  .brand__main{font-size:15.5px;}
  .cat-hero h1{font-size:clamp(26px,7vw,32px);}
  .section__head h2{font-size:23px;}
  .tl-item__body h3{font-size:18px;}
  .footer-form__row{flex-direction:column;}
  .footer-form__row .btn{width:100%;}
}
@media (max-width:380px){
  .cat-hero h1{font-size:23px;}
  .badge{font-size:13px;}
  .btn{padding:12px 20px;font-size:14.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .tl-item{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --bg:#070B14;
  --bg-1:#0D1524;
  --bg-2:#121C30;
  --gold:#C8A464;
  --gold-hi:#E7D3A1;
  --gold-dim:#8E7239;
  --mist:#5E8C8A;
  --brick:#C9603F;
  --text:#F2F5FA;
  --text-2:#A9B6CA;
  --text-3:#6F7D93;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.06);
  --glass-line:rgba(255,255,255,.12);
  --r-10:10px;
  --r-16:16px;
  --r-22:22px;
  --r-pill:999px;
  --shadow-glass:0 8px 30px rgba(0,0,0,.45);
  --shadow-lift:0 16px 44px rgba(0,0,0,.55);
  --shadow-gold:0 0 0 1px rgba(200,164,100,.5),0 8px 28px rgba(200,164,100,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:220ms;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",PingFang SC,serif;
  --sans:"Noto Sans SC","HarmonyOS Sans SC",PingFang SC,system-ui,-apple-system,"Segoe UI",sans-serif;
  --num:"Inter",ui-monospace,SFMono-Regular,Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--t) var(--ease);}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(200,164,100,.55);outline-offset:2px;}
button,input{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:600;letter-spacing:.01em;line-height:1.28;}
p{margin:0;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
@media (min-width:1440px){.container{max-width:1280px;}}
@media (max-width:1023px){.container{padding:0 24px;}}
@media (max-width:767px){.container{padding:0 18px;}}

.section{padding:96px 0;}
@media (max-width:1023px){.section{padding:72px 0;}}
@media (max-width:767px){.section{padding:56px 0;}}

/* ============ 通用组件 ============ */
.glass{
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-22);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-glass),inset 0 1px 0 rgba(255,255,255,.08);
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),
             background var(--t) var(--ease),border-color var(--t) var(--ease),color var(--t) var(--ease);
}
.btn--gold{background:linear-gradient(135deg,#E7D3A1,#C8A464);color:#14100A;box-shadow:var(--shadow-gold);}
.btn--gold:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(200,164,100,.6),0 12px 34px rgba(200,164,100,.4);}
.btn--gold:active{transform:translateY(1px);}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.22);color:var(--text);}
.btn--ghost:hover{border-color:var(--gold);background:rgba(200,164,100,.1);color:var(--gold-hi);transform:translateY(-2px);}
.btn--sm{padding:10px 18px;font-size:14px;}
.btn--lg{padding:16px 34px;font-size:16px;}
.btn[disabled],.btn.is-loading{opacity:.45;cursor:progress;}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);font-size:13px;line-height:1.4;
  background:rgba(255,255,255,.06);border:1px solid var(--glass-line);color:var(--text-2);
}
.badge--mist{color:#8FB6B4;border-color:rgba(94,140,138,.5);background:rgba(94,140,138,.12);}
.badge--gold{color:var(--gold-hi);border-color:rgba(200,164,100,.55);background:rgba(200,164,100,.14);}
.badge--brick{color:#EBA88C;border-color:rgba(201,96,63,.5);background:rgba(201,96,63,.14);}

.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head h2{font-size:clamp(24px,3.2vw,38px);margin:16px 0 14px;}
.sec-head p{color:var(--text-2);font-size:16px;}
.rule-gold{width:44px;height:8px;border-radius:4px;background:linear-gradient(90deg,var(--gold-hi),var(--gold-dim));}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:900;
  background:rgba(7,11,20,.28);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.site-header.is-scrolled{background:rgba(7,11,20,.92);box-shadow:0 12px 32px rgba(0,0,0,.5);}
.nav-wrap{display:flex;align-items:center;gap:22px;height:76px;transition:height var(--t) var(--ease);}
.site-header.is-scrolled .nav-wrap{height:64px;}

.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand__mark{
  display:grid;place-items:center;width:44px;height:44px;border-radius:14px;
  font-family:var(--serif);font-size:18px;letter-spacing:.04em;color:var(--gold);
  border:1px solid rgba(200,164,100,.45);background:rgba(200,164,100,.09);
  transition:border-color var(--t) var(--ease),background var(--t) var(--ease);
}
.brand:hover .brand__mark{border-color:var(--gold);background:rgba(200,164,100,.16);}
.brand__text{display:flex;flex-direction:column;line-height:1.2;}
.brand__main{font-family:var(--serif);font-size:16px;color:var(--gold);}
.brand__sub{font-size:11px;color:var(--text-3);letter-spacing:.14em;}

.nav__menu{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav__lead{
  font-size:12px;color:var(--text-3);letter-spacing:.1em;
  padding-right:14px;margin-right:8px;border-right:1px solid var(--line);white-space:nowrap;
}
.nav__link{
  position:relative;padding:10px 13px;border-radius:var(--r-10);
  font-size:15px;color:var(--text-2);white-space:nowrap;
}
.nav__link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav__link.is-active{color:var(--gold);}
.nav__link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;
  border-radius:2px;background:var(--gold);
}
.nav__actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  display:grid;place-items:center;width:44px;height:44px;border-radius:var(--r-pill);
  background:transparent;border:1px solid var(--glass-line);color:var(--text-2);cursor:pointer;
  transition:border-color var(--t) var(--ease),color var(--t) var(--ease),background var(--t) var(--ease);
}
.icon-btn:hover{border-color:var(--gold);color:var(--gold-hi);background:rgba(200,164,100,.1);}
.hamburger{display:none;}

.search-bar{display:none;border-top:1px solid var(--line);background:rgba(7,11,20,.94);padding:14px 0;}
.search-bar.is-open{display:block;}
.search-form{display:flex;gap:12px;align-items:center;}
.search-form input{
  flex:1;padding:13px 18px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);border:1px solid var(--glass-line);color:var(--text);
  transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.search-form input::placeholder{color:var(--text-3);}
.search-form input:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(200,164,100,.25);}

/* 移动端抽屉 */
.drawer{position:fixed;inset:0;z-index:1000;display:none;background:rgba(7,11,20,.94);
  backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%);}
.drawer.is-open{display:block;}
.drawer__panel{
  height:100%;width:min(420px,88%);padding:22px 22px 32px;
  display:flex;flex-direction:column;gap:18px;
  background:rgba(13,21,36,.96);border-right:1px solid var(--glass-line);
  animation:drawerIn var(--t) var(--ease);
}
@keyframes drawerIn{from{transform:translateX(-16px);opacity:.4;}to{transform:translateX(0);opacity:1;}}
.drawer__head{display:flex;align-items:center;justify-content:space-between;}
.drawer__nav{display:flex;flex-direction:column;border-top:1px solid var(--line);}
.drawer__nav a{
  padding:16px 4px;font-size:16px;color:var(--text-2);border-bottom:1px solid var(--line);
  min-height:48px;display:flex;align-items:center;
}
.drawer__nav a:hover,.drawer__nav a.is-active{color:var(--gold);}
.drawer__cta{margin-top:auto;width:100%;}

/* ============ 分类页头部 ============ */
.cat-hero{position:relative;padding:150px 0 64px;background:var(--bg-1);overflow:hidden;}
.cat-hero__bg{position:absolute;inset:0;}
.cat-hero__bg img{width:100%;height:100%;object-fit:cover;opacity:.34;}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.88) 0%,rgba(7,11,20,.94) 62%,#070B14 100%);
}
.cat-hero__inner{position:relative;z-index:2;display:grid;grid-template-columns:1.3fr .85fr;gap:48px;align-items:end;}

.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap;}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--gold);}
.crumb .sep{opacity:.45;}
.crumb .is-current{color:var(--gold);}

.cat-hero h1{font-size:clamp(30px,4.6vw,52px);line-height:1.16;margin-bottom:16px;}
.cat-hero__text .rule-gold{margin-bottom:20px;}
.cat-hero__lead{font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:26px;}
.cat-hero__tags{display:flex;flex-wrap:wrap;gap:10px;}

.cat-hero__card{padding:26px 26px 22px;}
.cat-hero__card h2{font-size:17px;margin-bottom:16px;color:var(--gold-hi);font-family:var(--sans);font-weight:600;}
.point-list li{
  position:relative;padding-left:18px;margin-bottom:12px;
  font-size:15px;color:var(--text-2);line-height:1.75;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:2px;
  background:var(--gold);transform:rotate(45deg);
}
.cat-hero__hint{margin-top:14px;font-size:13px;color:var(--text-3);padding-top:14px;border-top:1px solid var(--line);}

/* ============ 对比表 ============ */
.compare-intro{display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:end;margin-bottom:40px;}
.legend{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-3);}
.legend span{display:flex;align-items:center;gap:8px;}
.legend i{width:10px;height:10px;border-radius:3px;display:block;background:var(--mist);}
.legend i.gold{background:var(--gold);}

.table-scroll{
  overflow-x:auto;border-radius:var(--r-22);border:1px solid var(--glass-line);
  background:rgba(255,255,255,.04);
  backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-glass);
}
.compare-table{width:100%;min-width:840px;border-collapse:collapse;font-size:15px;}
.compare-table th,.compare-table td{padding:18px 20px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line);}
.compare-table thead th{
  position:sticky;top:0;z-index:2;background:#101A2C;color:var(--text);
  font-size:14px;font-weight:600;letter-spacing:.04em;font-family:var(--sans);
}
.compare-table tbody th{
  font-family:var(--sans);font-weight:500;color:var(--text);font-size:15px;
  background:rgba(255,255,255,.03);width:180px;
}
.compare-table tbody td{color:var(--text-2);}
.compare-table tbody tr:nth-child(even) td{background:rgba(255,255,255,.02);}
.compare-table tbody tr:last-child th,.compare-table tbody tr:last-child td{border-bottom:0;}
td.col-rec,th.col-rec{
  background:rgba(200,164,100,.07)!important;
  box-shadow:inset 0 3px 0 var(--gold);
  color:var(--gold-hi)!important;
}
thead th.col-rec{color:var(--gold-hi)!important;display:table-cell;}
th.col-rec .badge{margin-left:8px;vertical-align:middle;}
.compare-note{margin-top:18px;font-size:13px;color:var(--text-3);}

/* ============ 测量要点 ============ */
.measure-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:48px;align-items:center;}
.measure-figure{border-radius:var(--r-16);overflow:hidden;border:1px solid var(--glass-line);box-shadow:var(--shadow-lift);}
.measure-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 300ms var(--ease);}
.measure-figure:hover img{transform:scale(1.04);}

.step-list li{
  display:flex;gap:18px;padding:20px 0;border-bottom:1px solid var(--line);
}
.step-list li:last-child{border-bottom:0;}
.step-no{
  flex:0 0 auto;font-family:var(--num);font-size:14px;font-weight:600;color:var(--gold);
  border:1px solid rgba(200,164,100,.5);border-radius:var(--r-10);
  width:44px;height:34px;display:grid;place-items:center;background:rgba(200,164,100,.08);
}
.step-list h3{font-size:18px;margin-bottom:6px;}
.step-list p{font-size:15px;color:var(--text-2);line-height:1.85;}

/* ============ 速查列表 ============ */
.quick-wrap{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.quick-card{padding:28px 26px;}
.quick-card h3{font-size:20px;margin-bottom:6px;}
.quick-card .quick-sub{font-size:13px;color:var(--text-3);margin-bottom:18px;letter-spacing:.04em;}
.quick-list li{
  display:flex;gap:12px;align-items:flex-start;padding:12px 0;
  border-bottom:1px solid var(--line);font-size:15px;color:var(--text-2);line-height:1.8;
}
.quick-list li:last-child{border-bottom:0;}
.quick-list li::before{
  content:"";flex:0 0 auto;width:7px;height:7px;margin-top:.68em;border-radius:2px;
  background:var(--gold);transform:rotate(45deg);
}
.quick-list strong{color:var(--text);font-weight:600;}

/* ============ FAQ ============ */
.faq-list{max-width:920px;}
.faq-item{
  border:1px solid var(--glass-line);border-radius:var(--r-16);
  background:rgba(255,255,255,.05);margin-bottom:14px;overflow:hidden;
  backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%);
  transition:border-color var(--t) var(--ease),background var(--t) var(--ease);
}
.faq-item:hover{border-color:rgba(255,255,255,.2);}
.faq-item.is-open{border-color:rgba(200,164,100,.45);background:rgba(200,164,100,.05);}
.faq-q{
  display:flex;align-items:center;gap:14px;width:100%;min-height:60px;
  padding:16px 22px;background:none;border:0;cursor:pointer;
  font-size:16px;color:var(--text);text-align:left;font-family:var(--sans);font-weight:500;
}
.faq-mark{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  border:1px solid rgba(200,164,100,.6);color:var(--gold);
  display:grid;place-items:center;font-size:14px;font-family:var(--serif);
}
.faq-plus{margin-left:auto;color:var(--gold);font-size:20px;line-height:1;transition:transform var(--t) var(--ease);}
.faq-item.is-open .faq-plus{transform:rotate(45deg);}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows var(--t) var(--ease);}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a__inner{overflow:hidden;}
.faq-a p{padding:0 22px 20px 64px;font-size:15px;line-height:1.9;color:var(--text-2);}

/* ============ 页尾 CTA ============ */
.cta-band{
  padding:44px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(200,164,100,.06),rgba(200,164,100,0));
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(20px,2.6vw,28px);margin-bottom:8px;}
.cta-inner p{font-size:15px;color:var(--text-2);}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{position:relative;background:#070B14;padding:72px 0 0;margin-top:0;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,164,100,.7),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.35fr;gap:40px;}
.footer-brand__logo{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand__main{display:block;font-family:var(--serif);font-size:16px;color:var(--gold);line-height:1.3;}
.footer-brand__sub{display:block;font-size:11px;color:var(--text-3);letter-spacing:.14em;}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.9;max-width:360px;}
.footer-col h4{
  font-size:15px;font-family:var(--sans);font-weight:600;color:var(--text);
  margin-bottom:18px;letter-spacing:.04em;
}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul a{font-size:14px;color:var(--text-3);}
.footer-col ul a:hover{color:var(--gold);text-decoration:underline;text-underline-offset:4px;}
.footer-form label{display:block;font-size:13px;color:var(--text-2);margin-bottom:10px;}
.footer-form__row{display:flex;gap:10px;}
.footer-form input{
  flex:1;min-width:0;padding:12px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);border:1px solid var(--glass-line);color:var(--text);font-size:14px;
  transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.footer-form input::placeholder{color:var(--text-3);}
.footer-form input:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(200,164,100,.25);}
.footer-form input.is-error{border-color:var(--brick);}
.footer-form__msg{font-size:13px;color:var(--text-3);margin-top:10px;min-height:20px;}
.footer-form__msg.is-error{color:#EBA88C;}
.footer-form__msg.is-ok{color:#8FB6B4;}
.footer-contact{margin-top:16px;font-size:13px;color:var(--text-3);line-height:1.9;}
.btn__spinner{
  display:none;width:14px;height:14px;border-radius:50%;
  border:2px solid rgba(20,16,10,.3);border-top-color:#14100A;animation:spin .7s linear infinite;
}
.btn.is-loading .btn__spinner{display:inline-block;}
.btn.is-loading .btn__label{opacity:.75;}
@keyframes spin{to{transform:rotate(360deg);}}

.footer-bottom{
  margin-top:56px;padding:22px 0 30px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom__links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.footer-bottom__links a{color:var(--text-3);}
.footer-bottom__links a:hover{color:var(--gold);}
.to-top{
  background:none;border:1px solid var(--glass-line);border-radius:var(--r-pill);
  padding:8px 16px;font-size:13px;color:var(--text-2);cursor:pointer;
  transition:border-color var(--t) var(--ease),color var(--t) var(--ease);
}
.to-top:hover{border-color:var(--gold);color:var(--gold-hi);}

/* 滚动淡入 */
.reveal{opacity:0;transform:translateY(18px);transition:opacity 520ms var(--ease),transform 520ms var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

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

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav__menu{display:none;}
  .hamburger{display:grid;}
  .nav__actions{margin-left:auto;}
  .cat-hero{padding:132px 0 56px;}
  .cat-hero__inner{grid-template-columns:1fr;gap:30px;align-items:start;}
  .compare-intro{grid-template-columns:1fr;gap:20px;align-items:start;}
  .measure-grid{grid-template-columns:1fr;gap:32px;}
  .quick-wrap{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}

@media (max-width:767px){
  .search-form{flex-direction:column;align-items:stretch;}
  .cat-hero{padding:120px 0 48px;}
  .cat-hero h1{font-size:clamp(26px,8vw,34px);}
  .cat-hero__lead{font-size:15px;}

  .table-scroll{overflow:visible;border:0;background:none;box-shadow:none;border-radius:0;backdrop-filter:none;-webkit-backdrop-filter:none;}
  .compare-table{min-width:0;display:block;width:100%;}
  .compare-table thead{display:none;}
  .compare-table tbody,.compare-table tr,.compare-table th,.compare-table td{display:block;width:auto;}
  .compare-table tr{
    border:1px solid var(--glass-line);border-radius:var(--r-16);
    background:rgba(255,255,255,.05);margin-bottom:16px;overflow:hidden;
  }
  .compare-table tbody th{
    border-bottom:1px solid var(--line);background:rgba(200,164,100,.08);
    color:var(--gold-hi);font-size:15px;padding:14px 16px;
  }
  .compare-table tbody td{padding:14px 16px;border-bottom:1px solid var(--line);}
  .compare-table tbody td:last-child{border-bottom:0;}
  .compare-table tbody td::before{
    content:attr(data-label);display:block;font-size:12px;color:var(--text-3);
    letter-spacing:.08em;margin-bottom:6px;
  }
  td.col-rec{box-shadow:none!important;background:rgba(200,164,100,.07)!important;}

  .faq-a p{padding:0 18px 18px 18px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

@media (max-width:380px){
  body{font-size:15px;}
  .brand__main{font-size:15px;}
  .cat-hero h1{font-size:24px;}
  .sec-head h2{font-size:22px;}
  .btn{padding:12px 22px;font-size:14px;}
}

/* roulang page: category4 */
:root{
  --bg:#070B14;
  --bg-1:#0D1524;
  --bg-2:#121C30;
  --glass:rgba(255,255,255,.06);
  --glass-2:rgba(255,255,255,.09);
  --stroke:rgba(255,255,255,.12);
  --stroke-soft:rgba(255,255,255,.08);
  --gold:#C8A464;
  --gold-hi:#E7D3A1;
  --gold-dk:#8E7239;
  --mist:#5E8C8A;
  --clay:#C9603F;
  --text:#F2F5FA;
  --text-2:#A9B6CA;
  --text-3:#6F7D93;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --r-pill:999px;
  --shadow-glass:0 8px 30px rgba(0,0,0,.45);
  --shadow-float:0 16px 44px rgba(0,0,0,.55);
  --shadow-gold:0 0 0 1px rgba(200,164,100,.5),0 8px 28px rgba(200,164,100,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:220ms;
  --serif:"Noto Serif SC","Songti SC","Source Han Serif SC","PingFang SC",serif;
  --sans:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  padding-bottom:96px;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -6%,rgba(94,140,138,.14),transparent 62%),
    radial-gradient(760px 460px at 88% 4%,rgba(200,164,100,.10),transparent 60%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border-radius:var(--r-md)}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),background-color var(--dur) var(--ease)}
button,input{font:inherit;color:inherit;background:none;border:0;margin:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;letter-spacing:.01em;line-height:1.28}
:focus-visible{outline:3px solid rgba(200,164,100,.6);outline-offset:3px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;position:relative;z-index:1}
.section{padding:110px 0;position:relative;z-index:1}
.section--tight{padding:76px 0}
.section__head{margin-bottom:44px;max-width:820px}
.section__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;color:var(--mist);text-transform:uppercase;margin-bottom:14px;
}
.section__eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--gold),transparent)}
h2.section__title{font-size:clamp(24px,3.2vw,38px);margin-bottom:14px}
.section__desc{color:var(--text-2);font-size:16px;max-width:760px}
.muted{color:var(--text-3);font-size:13px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  border:1px solid transparent;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background-color var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
  white-space:nowrap;
}
.btn--gold{
  background:linear-gradient(135deg,var(--gold-hi) 0%,var(--gold) 100%);
  color:#14100A;box-shadow:var(--shadow-gold);
}
.btn--gold:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(200,164,100,.7),0 12px 34px rgba(200,164,100,.4)}
.btn--gold:active{transform:translateY(1px)}
.btn--ghost{
  background:rgba(255,255,255,.03);border-color:rgba(255,255,255,.22);color:var(--text);
}
.btn--ghost:hover{border-color:var(--gold);background:rgba(200,164,100,.10);color:var(--gold-hi)}
.btn--sm{padding:10px 20px;font-size:14px}
.btn--lg{padding:16px 34px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}
.btn__spinner{
  width:14px;height:14px;border-radius:50%;
  border:2px solid rgba(20,16,10,.35);border-top-color:#14100A;
  display:none;animation:spin .7s linear infinite;
}
.btn.is-loading .btn__spinner{display:inline-block}
.btn.is-loading{pointer-events:none;opacity:.85}
@keyframes spin{to{transform:rotate(360deg)}}
.link-more{
  position:relative;color:var(--gold);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;
}
.link-more::after{
  content:"";position:absolute;left:0;right:100%;bottom:-4px;height:1px;background:var(--gold);
  transition:right var(--dur) var(--ease);
}
.link-more:hover::after{right:0}
.link-more:hover{color:var(--gold-hi)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(7,11,20,.28);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--stroke-soft);
  transition:background var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.site-header.is-scrolled{background:rgba(7,11,20,.92);box-shadow:0 14px 36px rgba(0,0,0,.55)}
.header__inner{
  display:flex;align-items:center;gap:22px;height:76px;
  transition:height var(--dur) var(--ease);
}
.site-header.is-scrolled .header__inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand__mark{
  font-family:var(--serif);font-size:20px;line-height:1;color:var(--gold);
  border:1px solid rgba(200,164,100,.45);border-radius:var(--r-sm);padding:6px 9px;letter-spacing:.06em;
}
.brand__text{display:flex;flex-direction:column;line-height:1.2}
.brand__main{font-family:var(--serif);font-size:15px;color:var(--gold-hi);letter-spacing:.06em}
.brand__sub{font-size:12px;color:var(--text-3);letter-spacing:.04em}
.nav__menu{display:flex;align-items:center;gap:26px;margin-left:14px;flex:1;min-width:0}
.nav__lead{
  font-size:12px;color:var(--mist);letter-spacing:.08em;padding-right:14px;
  border-right:1px solid var(--stroke-soft);white-space:nowrap;
}
.nav__link{
  position:relative;font-size:14.5px;color:var(--text-2);padding:6px 0;white-space:nowrap;
}
.nav__link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--gold);
  transform:scaleX(0);transform-origin:left;transition:transform var(--dur) var(--ease);
}
.nav__link:hover{color:var(--text)}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link.is-active{color:var(--gold)}
.nav__link.is-active::after{transform:scaleX(1)}
.header__actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--stroke);cursor:pointer;color:var(--text-2);
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.icon-btn:hover{border-color:var(--gold);color:var(--gold);background:rgba(200,164,100,.08)}
.hamburger{display:none;flex-direction:column;gap:5px;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--stroke);border-radius:var(--r-sm);cursor:pointer}
.hamburger span{display:block;width:18px;height:1.5px;background:var(--text);transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease)}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
.header__search{
  border-top:1px solid var(--stroke-soft);
  background:rgba(7,11,20,.85);
  backdrop-filter:blur(16px);
}
.header__search[hidden]{display:none}
.search-form{display:flex;gap:12px;padding:16px 0}
.search-form input{
  flex:1;min-width:0;padding:12px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);border:1px solid var(--stroke);color:var(--text);
}
.search-form input::placeholder{color:var(--text-3)}
.search-form input:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(200,164,100,.22)}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:70;
  background:rgba(7,11,20,.94);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  transform:translateY(-100%);
  visibility:hidden;
  transition:transform 260ms var(--ease),visibility 260ms var(--ease);
  display:flex;flex-direction:column;
  padding:88px 24px 28px;
}
.drawer.is-open{transform:translateY(0);visibility:visible}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.drawer__title{font-family:var(--serif);font-size:18px;color:var(--gold)}
.drawer__close{align-self:flex-end;font-size:24px;line-height:1;color:var(--text-2);cursor:pointer;padding:6px 10px}
.drawer__nav{display:flex;flex-direction:column;margin-top:14px}
.drawer__nav a{
  padding:18px 4px;font-size:17px;color:var(--text-2);
  border-bottom:1px solid var(--stroke-soft);
}
.drawer__nav a.is-active{color:var(--gold)}
.drawer__nav a:hover{color:var(--gold-hi)}
.drawer__lead{font-size:12px;letter-spacing:.14em;color:var(--mist);margin:18px 0 4px}
.drawer__cta{margin-top:auto;padding-top:24px}
.drawer__cta .btn{width:100%}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:460px;
  display:flex;align-items:center;
  padding:150px 0 70px;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(7,11,20,.62) 0%,rgba(7,11,20,.94) 78%,var(--bg) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  transform:scale(1.02);
  z-index:0;
}
.hero__inner{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero__text{max-width:640px}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--gold)}
.breadcrumb .is-current{color:var(--gold)}
.hero h1{font-size:clamp(30px,4.6vw,50px);line-height:1.16;margin-bottom:0}
.hero__rule{width:52px;height:8px;border-top:2px solid var(--gold);margin:18px 0}
.hero__lead{font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:28px}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap}
.hero__card{
  background:var(--glass);
  border:1px solid var(--stroke);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-glass);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  padding:26px;
  inset:0 1px 0 rgba(255,255,255,.08);
}
.hero__card-title{font-size:17px;color:var(--gold-hi);margin-bottom:16px}
.hero__card ul li{
  display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--stroke-soft);
  font-size:14.5px;color:var(--text-2);
}
.hero__card ul li:last-child{border-bottom:0;padding-bottom:0}
.hero__card ul li b{color:var(--text);font-weight:600}
.dot{flex-shrink:0;width:8px;height:8px;border-radius:2px;background:var(--gold);margin-top:9px}

/* ---------- 指标条 ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border:1px solid var(--stroke);border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  overflow:hidden;
}
.metric{padding:28px 26px;border-right:1px solid var(--stroke-soft)}
.metric:last-child{border-right:0}
.metric__num{
  font-family:var(--serif);font-size:clamp(26px,3vw,34px);color:var(--gold);line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.metric__label{font-size:14px;color:var(--text-2);margin-top:8px}
.metric__note{font-size:12.5px;color:var(--text-3);margin-top:4px}

/* ---------- 卡片 ---------- */
.card{
  background:var(--glass);
  border:1px solid var(--stroke);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-glass);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  padding:26px;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(200,164,100,.42);box-shadow:var(--shadow-float)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:44px;align-items:start}
.faq-aside .card{position:sticky;top:110px}
.faq-aside h3{font-size:19px;margin-bottom:12px}
.faq-aside p{font-size:14.5px;color:var(--text-2);margin-bottom:18px}
.faq-aside ul li{font-size:14px;color:var(--text-2);padding:9px 0;border-bottom:1px dashed var(--stroke-soft);display:flex;gap:10px}
.faq-aside ul li:last-child{border-bottom:0}
.faq-list{
  background:var(--glass);border:1px solid var(--stroke);border-radius:var(--r-lg);
  box-shadow:var(--shadow-glass);padding:8px 26px;
}
.faq-item{border-bottom:1px solid var(--stroke-soft)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;
  min-height:60px;padding:18px 4px;text-align:left;cursor:pointer;
  font-size:16.5px;color:var(--text);font-family:var(--serif);
  transition:color var(--dur) var(--ease);
}
.faq-q:hover{color:var(--gold-hi)}
.faq-badge{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  border:1px solid rgba(200,164,100,.55);color:var(--gold);
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--sans);font-size:13px;line-height:1;
}
.faq-sign{
  margin-left:auto;flex-shrink:0;color:var(--gold);font-size:20px;line-height:1;
  transition:transform var(--dur) var(--ease);
}
.faq-item.is-open .faq-sign{transform:rotate(45deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows var(--dur) var(--ease)}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a__inner{overflow:hidden}
.faq-a__body{
  padding:0 4px 22px 46px;font-size:15px;line-height:1.9;color:var(--text-2);
}
.faq-a__body strong{color:var(--text);font-weight:600}

/* ---------- 时间线 ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.tl-item{
  position:relative;padding:28px 22px 24px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--stroke);
  border-radius:var(--r-lg);
  opacity:0;transform:translateY(18px);
  transition:opacity 420ms var(--ease),transform 420ms var(--ease),border-color var(--dur) var(--ease);
}
.tl-item.is-in{opacity:1;transform:none}
.tl-item:hover{border-color:rgba(200,164,100,.4)}
.tl-item::before{
  content:"";position:absolute;top:-1px;left:22px;width:44px;height:2px;
  background:linear-gradient(90deg,var(--gold),transparent);
}
.tl-num{
  font-family:var(--serif);font-size:15px;color:var(--gold-dk);letter-spacing:.14em;margin-bottom:10px;
  font-variant-numeric:tabular-nums;
}
.tl-item h3{font-size:18px;margin-bottom:10px}
.tl-item p{font-size:14.5px;color:var(--text-2)}

/* ---------- 图文块 ---------- */
.split{display:grid;grid-template-columns:6fr 6fr;gap:52px;align-items:center}
.split__figure{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--stroke);box-shadow:var(--shadow-float)}
.split__figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;transition:transform 300ms var(--ease)}
.split__figure:hover img{transform:scale(1.04)}
.split__figure figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:18px 22px;font-size:13px;color:var(--text-2);
  background:linear-gradient(180deg,rgba(7,11,20,0),rgba(7,11,20,.9));
}
.split h2{font-size:clamp(23px,2.8vw,32px);margin-bottom:14px}
.split p{color:var(--text-2);margin-bottom:22px}
.checklist li{
  display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--stroke-soft);font-size:15px;color:var(--text-2);
}
.checklist li:last-child{border-bottom:0}
.checklist b{color:var(--text);font-weight:600;display:block;font-size:15.5px;margin-bottom:2px}

/* ---------- 两列文字链 ---------- */
.linkgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 56px}
.linkgrid__col a{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:18px 4px;border-bottom:1px solid var(--stroke-soft);
  font-size:15.5px;color:var(--text-2);
}
.linkgrid__col a::after{
  content:"";position:absolute;left:4px;bottom:12px;height:1px;width:0;background:var(--gold);
  transition:width 260ms var(--ease);
}
.linkgrid__col a:hover{color:var(--gold-hi)}
.linkgrid__col a:hover::after{width:calc(100% - 8px)}
.linkgrid__col a span.idx{
  font-family:var(--serif);font-size:13px;color:var(--gold-dk);font-variant-numeric:tabular-nums;
}
.linkgrid__col a span.arw{margin-left:auto;color:var(--gold);opacity:.7}

/* ---------- CTA ---------- */
.cta-band{
  border:1px solid var(--stroke);border-radius:var(--r-lg);
  background:
    linear-gradient(135deg,rgba(200,164,100,.14),rgba(94,140,138,.10) 55%,rgba(255,255,255,.02));
  box-shadow:var(--shadow-glass);
  padding:44px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:10px}
.cta-band p{color:var(--text-2);font-size:15px;max-width:620px}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;z-index:1;background:var(--bg);margin-top:20px;
  border-top:1px solid rgba(255,255,255,.08);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);opacity:.7;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:44px;
  padding:76px 0 52px;
}
.footer-brand__logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand__main{font-family:var(--serif);font-size:16px;color:var(--gold-hi);display:block;line-height:1.2}
.footer-brand__sub{font-size:12px;color:var(--text-3);display:block;line-height:1.4}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:360px}
.footer-col h4{font-size:15px;color:var(--text);margin-bottom:18px;font-family:var(--serif)}
.footer-col ul li{margin-bottom:12px}
.footer-col ul li a{font-size:14px;color:var(--text-2)}
.footer-col ul li a:hover{color:var(--gold)}
.footer-form label{display:block;font-size:13px;color:var(--text-2);margin-bottom:10px}
.footer-form__row{display:flex;gap:10px}
.footer-form__row input{
  flex:1;min-width:0;padding:12px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);border:1px solid var(--stroke);color:var(--text);
}
.footer-form__row input::placeholder{color:var(--text-3)}
.footer-form__row input:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(200,164,100,.22)}
.footer-form__row input.is-error{border-color:var(--clay)}
.footer-form__msg{font-size:13px;color:var(--clay);margin-top:10px;min-height:18px}
.footer-form__msg.is-ok{color:var(--mist)}
.footer-contact{font-size:13.5px;color:var(--text-3);margin-top:18px;line-height:1.9}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:22px 0 30px;border-top:1px solid var(--stroke-soft);font-size:13.5px;color:var(--text-3);
}
.footer-bottom__links{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.footer-bottom__links a:hover{color:var(--gold)}
.to-top{
  cursor:pointer;color:var(--text-2);font-size:13.5px;border:1px solid var(--stroke);
  border-radius:var(--r-pill);padding:8px 16px;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.to-top:hover{border-color:var(--gold);color:var(--gold)}

/* ---------- 底部转化条 ---------- */
.cta-bar{
  position:fixed;left:50%;bottom:20px;transform:translateX(-50%);
  width:calc(100% - 48px);max-width:720px;z-index:55;
  display:flex;align-items:center;gap:18px;
  padding:12px 16px 12px 24px;
  background:rgba(18,28,48,.72);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-pill);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:0 16px 44px rgba(0,0,0,.55);
}
.cta-bar p{font-size:14.5px;color:var(--text-2);flex:1;min-width:0}
.cta-bar__close{
  width:32px;height:32px;border-radius:50%;cursor:pointer;color:var(--text-3);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;line-height:1;
  transition:color var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.cta-bar__close:hover{color:var(--text);background:rgba(255,255,255,.08)}
.cta-bar[hidden]{display:none}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .container{padding:0 24px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
}
@media (max-width:1023px){
  .nav__menu{display:none}
  .hamburger{display:flex}
  .hero{padding:130px 0 60px;min-height:420px}
  .hero__inner{grid-template-columns:1fr;gap:32px}
  .hero__text{max-width:none}
  .section{padding:76px 0}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .metric{border-right:1px solid var(--stroke-soft);border-bottom:1px solid var(--stroke-soft)}
  .metric:nth-child(2n){border-right:0}
  .metric:nth-child(3),.metric:nth-child(4){border-bottom:0}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .faq-aside .card{position:static}
  .timeline{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;padding:56px 0 40px}
  .header__actions .btn{display:none}
}
@media (max-width:767px){
  body{padding-bottom:120px}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .hero{padding:120px 0 48px;min-height:auto}
  .hero__actions{flex-direction:column;align-items:stretch}
  .hero__actions .btn{width:100%}
  .metrics{grid-template-columns:1fr}
  .metric{border-right:0;border-bottom:1px solid var(--stroke-soft);padding:22px 20px}
  .metric:last-child{border-bottom:0}
  .timeline{grid-template-columns:1fr}
  .linkgrid{grid-template-columns:1fr;gap:0}
  .faq-list{padding:6px 18px}
  .faq-a__body{padding-left:4px}
  .cta-band{padding:32px 24px;flex-direction:column;align-items:flex-start}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
  .cta-bar{
    left:0;right:0;bottom:0;transform:none;width:100%;max-width:none;
    border-radius:0;border-left:0;border-right:0;border-bottom:0;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    min-height:64px;
  }
  .cta-bar p{font-size:13.5px}
  .cta-bar .btn{width:55%;padding:12px 18px;font-size:14px}
}
@media (max-width:380px){
  body{font-size:15px}
  .hero h1{font-size:26px}
  h2.section__title{font-size:22px}
  .brand__sub{font-size:11px}
  .metric__num{font-size:24px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .tl-item{opacity:1;transform:none}
}