/* roulang page: index */
:root{
  --ink:#0B0E12;
  --panel:#12161C;
  --raise:#1B2129;
  --line:#2A323C;
  --accent:#FF5A24;
  --accent-h:#E8451A;
  --accent-p:#C93A13;
  --cyan:#17D6A3;
  --paper:#F6F4F0;
  --white:#FFFFFF;
  --td:#F2F4F7;
  --td2:#A7B0BD;
  --tl:#14181D;
  --tl2:#5C6672;
  --tl3:#8B95A5;
  --r-card:12px;
  --r-cover:10px;
  --r-btn:6px;
  --r-badge:4px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-dark:0 18px 40px -18px rgba(0,0,0,.6);
  --shadow-light:0 10px 28px -14px rgba(11,14,18,.18);
  --hair-dark:1px solid rgba(255,255,255,.08);
  --hair-light:1px solid rgba(11,14,18,.10);
  --maxw:1280px;
  --num-font:"DIN Alternate","Barlow Condensed",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--tl);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;line-height:1.2;font-weight:700}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease)}
ul,ol{list-style:none;margin:0;padding:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.num{font-family:var(--num-font);font-variant-numeric:tabular-nums}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--ink);
  border-bottom:var(--hair-dark);
  transition:background .25s var(--ease),backdrop-filter .25s var(--ease);
}
.site-header.is-stuck{
  background:rgba(11,14,18,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.brandbar{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{width:28px;height:28px;flex:none;display:block}
.logo-text{font-size:18px;font-weight:800;letter-spacing:-.02em;color:var(--td)}
.logo:hover .logo-text{color:var(--accent)}
.brand-tools{display:flex;align-items:center;gap:22px}
.tool-text{font-size:13px;letter-spacing:.06em;color:var(--td2)}
.tool-link{font-size:13px;letter-spacing:.06em;color:var(--td2);border-bottom:1px solid transparent;padding-bottom:2px}
.tool-link:hover{color:var(--accent);border-bottom-color:var(--accent)}
.burger{display:none;width:44px;height:44px;margin-right:-10px;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.burger span{display:block;width:20px;height:1.6px;background:var(--td);transition:transform .22s var(--ease),opacity .22s var(--ease)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6.6px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg)}
.chanbar{border-top:var(--hair-dark)}
.chan-track{display:flex;align-items:center;gap:28px;height:52px;overflow-x:auto;scrollbar-width:none}
.chan-track::-webkit-scrollbar{display:none}
.chan{position:relative;flex:none;font-size:15px;color:var(--td2);padding:14px 0;white-space:nowrap}
.chan::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:50% 50%;
  transition:transform .22s var(--ease);
}
.chan:hover{color:var(--td)}
.chan:hover::after{transform:scaleX(1)}
.chan.is-active{color:var(--accent)}
.chan.is-active::after{transform:scaleX(1)}
.drawer{position:fixed;inset:0;z-index:90;background:var(--ink);padding:26px 20px 48px;overflow-y:auto;display:none}
.drawer.is-open{display:block}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:var(--hair-dark)}
.drawer-close{width:44px;height:44px;display:flex;align-items:center;justify-content:center;color:var(--td);font-size:22px;line-height:1}
.drawer-nav a{display:block;font-size:20px;font-weight:600;color:var(--td);padding:14px 0;border-bottom:var(--hair-dark)}
.drawer-nav a.is-active{color:var(--accent)}
.drawer-note{margin-top:28px;font-size:14px;color:var(--td2);line-height:1.9}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:clamp(520px,76vh,820px);display:flex;align-items:flex-end;overflow:hidden;background:var(--ink)}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.7}
.hero-veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,14,18,.30) 0%,rgba(11,14,18,.95) 100%)}
.hero-inner{position:relative;z-index:2;width:100%;padding-top:120px;padding-bottom:52px}
@keyframes riseIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.hero-badge,.hero-title,.hero-sub,.hero-actions{animation:riseIn .6s var(--ease) both}
.hero-title{animation-delay:.08s}
.hero-sub{animation-delay:.16s}
.hero-actions{animation-delay:.24s}
.hero-badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.06em;color:var(--cyan);margin-bottom:18px}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--cyan);display:block}
.hero-title{
  font-size:clamp(38px,5.6vw,72px);
  font-weight:800;line-height:1.06;letter-spacing:-.02em;
  color:var(--td);max-width:16em;
}
.hero-sub{margin-top:20px;font-size:clamp(16px,1.4vw,19px);line-height:1.7;color:var(--td2);max-width:32em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-focus{display:flex;gap:28px;margin-top:44px;padding-top:24px;border-top:var(--hair-dark)}
.hero-focus li{position:relative;flex:1;min-width:0;padding-left:28px}
.hero-focus li:first-child{padding-left:0}
.hero-focus li::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:1px;background:rgba(255,255,255,.14)}
.hero-focus li:first-child::before{display:none}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.06em;color:var(--cyan)}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);flex:none}
.hero-focus a{display:block;margin-top:6px;font-size:15px;font-weight:600;line-height:1.5;color:var(--td)}
.hero-focus a:hover{color:var(--accent)}
.hero-focus time{display:block;margin-top:6px;font-size:12.5px;letter-spacing:.06em;color:#7C8798}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn .ico-arrow{transition:transform .2s var(--ease)}
.btn:hover .ico-arrow{transform:translateX(4px)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-h)}
.btn-primary:active{background:var(--accent-p)}
.btn-ghost{border:1px solid rgba(255,255,255,.28);color:var(--td)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-line{border:1px solid rgba(11,14,18,.18);color:var(--tl)}
.btn-line:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- 指标条 ---------- */
.metrics{background:var(--panel);border-bottom:var(--hair-dark)}
.metric-row{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{padding:34px 28px;border-left:1px solid rgba(255,255,255,.08)}
.metric:first-child{border-left:0;padding-left:0}
.metric-num{display:block;font-family:var(--num-font);font-variant-numeric:tabular-nums;font-size:clamp(34px,3.4vw,52px);font-weight:800;line-height:1.05;color:var(--td)}
.metric-num em{font-style:normal;font-size:.48em;color:var(--accent);margin-left:3px;letter-spacing:0}
.metric-cap{display:block;margin-top:8px;font-size:13px;letter-spacing:.06em;color:var(--td2)}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-dark{background:var(--ink);color:var(--td)}
.section-dark .sec-title h2{color:var(--td)}
.section-paper{background:var(--paper)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sec-title{position:relative;padding-bottom:16px}
.sec-title h2{font-size:clamp(24px,2.8vw,38px);font-weight:700;letter-spacing:-.01em}
.sec-title .rule{position:absolute;left:0;bottom:0;width:48px;height:3px;background:var(--accent)}
.sec-sub{margin-top:12px;font-size:15px;color:var(--tl2);max-width:44em}
.section-dark .sec-sub{color:var(--td2)}
.more{display:inline-flex;align-items:center;gap:6px;flex:none;font-size:14px;color:var(--tl2);padding-bottom:6px}
.section-dark .more{color:var(--td2)}
.more:hover{color:var(--accent)}
.ico-arrow{width:16px;height:16px;flex:none}

/* ---------- 卡片 ---------- */
.card{
  display:block;border-radius:var(--r-card);overflow:hidden;
  background:var(--raise);border:1px solid rgba(255,255,255,.08);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-dark);border-color:rgba(255,255,255,.18)}
.card-cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--panel)}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease)}
.card:hover .card-cover img{transform:scale(1.04)}
.cover-veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,14,18,0) 42%,rgba(11,14,18,.90) 100%)}
.badge{
  position:absolute;left:12px;top:12px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-badge);
  font-size:12px;letter-spacing:.06em;
  background:rgba(11,14,18,.74);color:var(--td);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);flex:none}
.badge.is-accent::before{background:var(--accent)}
.cover-title{
  position:absolute;left:14px;right:14px;bottom:12px;z-index:2;
  font-size:17px;font-weight:600;line-height:1.45;color:#fff;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body{padding:14px 16px 18px}
.card-desc{
  font-size:15px;line-height:1.7;color:var(--td2);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{display:flex;align-items:center;gap:8px;margin-top:10px;font-size:12.5px;letter-spacing:.06em;color:#7C8798}
.card-meta i{display:block;width:3px;height:3px;border-radius:50%;background:currentColor}

/* ---------- 横滑片库 ---------- */
.rail-holder{position:relative}
.rail{
  display:flex;gap:20px;overflow-x:auto;padding-bottom:10px;
  scroll-snap-type:x mandatory;scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none}
.rail .card{flex:0 0 280px;scroll-snap-align:start}
.rail-arrow{
  position:absolute;top:34%;z-index:6;
  width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.22);background:rgba(11,14,18,.72);color:var(--td);
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.rail-arrow:hover{border-color:var(--accent);color:var(--accent);background:rgba(11,14,18,.9)}
.rail-arrow.is-left{left:-8px}
.rail-arrow.is-right{right:-8px}

/* ---------- 热播推荐 ---------- */
.row-gut{margin-left:-12px;margin-right:-12px}
.row-gut>.cell{padding-left:12px;padding-right:12px}
.feature{position:relative;display:block;border-radius:var(--r-card);overflow:hidden;border:1px solid rgba(255,255,255,.08);background:var(--raise);height:100%}
.feature:hover{border-color:rgba(255,255,255,.18)}
.feature::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent);z-index:3}
.feature-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--panel)}
.feature-cover img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease)}
.feature:hover .feature-cover img{transform:scale(1.03)}
.feature-info{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:32px 30px 26px;background:linear-gradient(180deg,rgba(11,14,18,0) 0%,rgba(11,14,18,.94) 78%)}
.feature-info h3{font-size:clamp(20px,2vw,26px);font-weight:700;line-height:1.38;color:#fff}
.feature-info p{margin:10px 0 0;font-size:15px;line-height:1.7;color:var(--td2);max-width:34em}
.side-stack{display:grid;gap:24px}
.side-stack .card{background:var(--raise)}

/* ---------- 最新信息 ---------- */
.news-list{display:grid;grid-template-columns:1fr 1fr;gap:0 56px;border-top:var(--hair-light)}
.news-row{
  display:grid;grid-template-columns:84px 1fr auto;gap:18px;align-items:start;
  padding:22px 10px;border-bottom:var(--hair-light);
  transition:background .2s var(--ease);
}
.news-row:hover{background:rgba(11,14,18,.035)}
.news-date{font-family:var(--num-font);font-variant-numeric:tabular-nums;font-size:19px;font-weight:700;color:var(--tl3);line-height:1.4}
.news-title{display:block;font-size:18px;font-weight:600;line-height:1.5;color:var(--tl)}
.news-row:hover .news-title{color:var(--accent)}
.news-desc{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-top:6px;font-size:15px;line-height:1.7;color:var(--tl2);
}
.news-badge{
  align-self:start;white-space:nowrap;
  font-size:12px;letter-spacing:.06em;color:var(--tl2);
  border:1px solid rgba(11,14,18,.14);border-radius:var(--r-badge);
  padding:3px 9px;
}
.empty{
  grid-column:1 / -1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:60px 24px;text-align:center;
}
.empty svg{width:64px;height:64px;color:var(--cyan);opacity:.85}
.empty p{font-size:15px;color:var(--tl2);margin:0}

/* ---------- 片单分区 ---------- */
.pl-col h3{font-size:17px;font-weight:600;padding-bottom:14px;border-bottom:var(--hair-light)}
.pl-list li{display:flex;gap:16px;align-items:baseline;padding:15px 0;border-bottom:var(--hair-light)}
.pl-num{font-family:var(--num-font);font-variant-numeric:tabular-nums;font-size:26px;font-weight:800;line-height:1;color:var(--tl3);min-width:34px}
.pl-list a{font-size:16px;line-height:1.6;color:var(--tl)}
.pl-list a:hover{color:var(--accent)}

/* ---------- 编辑手记 ---------- */
.note-sec{position:relative;background:var(--ink);color:var(--td);overflow:hidden}
.note-sec::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(11,14,18,.96) 0%,rgba(11,14,18,.82) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.note-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.5fr 1fr;gap:56px;align-items:center}
.quote-block{border-left:3px solid var(--accent);padding:6px 0 6px 28px}
.quote-block p{font-size:clamp(18px,2vw,22px);line-height:1.8;color:var(--td);margin:0}
.quote-meta{margin-top:18px;font-size:13px;letter-spacing:.06em;color:var(--td2)}
.note-list li{display:flex;gap:14px;align-items:flex-start;padding:15px 0;border-bottom:var(--hair-dark);font-size:15px;color:var(--td2)}
.note-list li:last-child{border-bottom:0}
.note-list span{font-family:var(--num-font);font-size:16px;font-weight:700;color:var(--cyan);line-height:1.7}

/* ---------- FAQ ---------- */
.faq{max-width:880px;border-top:var(--hair-light)}
.faq-item{border-bottom:var(--hair-light)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:17px;font-weight:600;color:var(--tl);
  cursor:pointer;list-style:none;transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--accent)}
.faq-icon{position:relative;width:16px;height:16px;flex:none}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--cyan);transition:transform .22s var(--ease),opacity .22s var(--ease)}
.faq-icon::before{left:0;top:7.25px;width:16px;height:1.5px}
.faq-icon::after{left:7.25px;top:0;width:1.5px;height:16px}
.faq-item[open] .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-body{
  padding:4px 20px 24px;font-size:15px;line-height:1.85;color:var(--tl2);
  background:rgba(11,14,18,.025);border-top:var(--hair-light);
}
.faq-body p{margin:16px 0 0}

/* ---------- CTA ---------- */
.cta{position:relative;background:var(--ink);color:var(--td);overflow:hidden;padding:92px 0;text-align:center}
.cta::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.045) 0 1px,transparent 1px 15px);
}
.cta-inner{position:relative;z-index:2;max-width:640px;margin:0 auto}
.cta h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;letter-spacing:-.01em}
.cta p{margin:18px 0 30px;font-size:16px;line-height:1.8;color:var(--td2)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--td2);border-top:var(--hair-dark);padding-top:64px}
.foot-brand .logo{margin-bottom:16px}
.foot-brand p{font-size:14.5px;line-height:1.8;color:var(--td2);max-width:24em}
.foot-h{font-size:13px;letter-spacing:.06em;color:#7C8798;margin-bottom:16px}
.foot-links li{padding:7px 0}
.foot-links a{font-size:14.5px;color:var(--td2)}
.foot-links a:hover{color:var(--accent)}
.foot-info li{font-size:14.5px;color:var(--td2);padding:7px 0}
.foot-info li b{font-weight:600;color:var(--td)}
.foot-bottom{
  margin-top:48px;border-top:var(--hair-dark);
  padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:12px 24px;
  justify-content:space-between;font-size:13px;color:#7C8798;
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .section{padding:80px 0}
  .hero-inner{padding-bottom:44px}
  .note-grid{grid-template-columns:1fr;gap:36px}
}
@media (max-width:900px){
  .metric-row{grid-template-columns:1fr 1fr}
  .metric{padding:26px 0 26px 24px}
  .metric:nth-child(odd){border-left:0;padding-left:0}
  .metric:nth-child(n+3){border-top:1px solid rgba(255,255,255,.08)}
  .news-list{grid-template-columns:1fr;gap:0}
  .rail-arrow{display:none}
}
@media (max-width:767px){
  body{font-size:16px}
  .wrap{padding:0 24px}
  .brandbar{height:56px}
  .burger{display:flex}
  .tool-text{display:none}
  .section{padding:64px 0}
  .hero{min-height:clamp(480px,72vh,640px)}
  .hero-inner{padding-top:88px;padding-bottom:36px}
  .hero-focus{flex-direction:column;gap:18px;margin-top:32px;padding-top:20px}
  .hero-focus li{padding-left:0;padding-bottom:0}
  .hero-focus li::before{left:0;top:auto;bottom:-9px;width:40px;height:1px}
  .hero-focus li:not(:last-child)::before{display:block}
  .hero-focus li:last-child::before{display:none}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .rail .card{flex:0 0 220px}
  .news-row{grid-template-columns:1fr;gap:8px;padding:20px 4px}
  .news-badge{justify-self:start}
  .foot-bottom{margin-top:36px}
  .feature-info{padding:24px 20px 20px}
  .cta{padding:72px 0}
}
@media (max-width:520px){
  .wrap{padding:0 20px}
  .metric-row{grid-template-columns:1fr}
  .metric{padding:22px 0;border-left:0}
  .metric:nth-child(n+2){border-top:1px solid rgba(255,255,255,.08)}
  .pl-list li{gap:12px}
  .pl-num{font-size:22px;min-width:28px}
  .hero-title{max-width:100%}
  .btn{width:100%;padding:0 20px}
  .hero-actions{gap:12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .card:hover{transform:none}
  .card:hover .card-cover img,.feature:hover .feature-cover img{transform:none}
  .btn:hover .ico-arrow{transform:none}
}

/* roulang page: article */
:root{
  --ink:#0B0E12;
  --panel:#12161C;
  --raise:#1B2129;
  --line-dark:#2A323C;
  --line-dark-soft:rgba(255,255,255,.08);
  --line-dark-strong:rgba(255,255,255,.18);
  --accent:#FF5A24;
  --accent-hover:#E8451A;
  --accent-press:#C93A13;
  --cyan:#17D6A3;
  --light:#F6F4F0;
  --card:#FFFFFF;
  --line-light:rgba(11,14,18,.10);
  --t-dark:#F2F4F7;
  --t-dark-2:#A7B0BD;
  --t-light:#14181D;
  --t-light-2:#5C6672;
  --t-light-3:#8B95A5;
  --r-card:12px;
  --r-cover:10px;
  --r-btn:6px;
  --r-badge:4px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --num:"DIN Alternate","Barlow Condensed",ui-monospace,monospace;
  --shadow-dark:0 18px 40px -18px rgba(0,0,0,.6);
  --shadow-light:0 10px 28px -14px rgba(11,14,18,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  background:var(--light);
  color:var(--t-light);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease)}
button{font:inherit;border:0;background:none;cursor:pointer;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
.grid-container{max-width:1280px;padding-left:32px;padding-right:32px}
.row-gut{margin-left:-16px;margin-right:-16px}
.row-gut > .cell{padding-left:16px;padding-right:16px}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:60}
.brand-bar{
  background:var(--ink);
  border-bottom:1px solid var(--line-dark-soft);
}
.brand-bar.is-scrolled{
  background:rgba(11,14,18,.88);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.brand-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;
}
.logo{display:inline-flex;align-items:center;gap:10px}
.logo-mark{width:28px;height:28px;flex:0 0 auto}
.logo-text{
  font-size:18px;font-weight:800;letter-spacing:-.02em;color:var(--t-dark);
}
.brand-right{display:flex;align-items:center;gap:22px}
.brand-note{font-size:13px;letter-spacing:.06em;color:var(--t-dark-2)}
.brand-link{
  font-size:14px;color:var(--t-dark);padding-bottom:2px;
  border-bottom:1px solid rgba(255,255,255,.28);
}
.brand-link:hover{color:var(--accent);border-color:var(--accent)}
.menu-btn{display:none;width:44px;height:44px;align-items:center;justify-content:center}
.menu-btn span{display:block;width:22px;height:2px;background:var(--t-dark);position:relative}
.menu-btn span::before,.menu-btn span::after{
  content:"";position:absolute;left:0;width:22px;height:2px;background:var(--t-dark);
}
.menu-btn span::before{top:-7px}
.menu-btn span::after{top:7px}

.chanbar{
  background:var(--panel);
  border-bottom:1px solid var(--line-dark-soft);
}
.chan-track{
  display:flex;align-items:center;gap:28px;
  height:56px;overflow-x:auto;scrollbar-width:none;
}
.chan-track::-webkit-scrollbar{display:none}
.chan{
  position:relative;flex:0 0 auto;
  font-size:15px;color:var(--t-dark-2);padding:6px 0;white-space:nowrap;
}
.chan::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;
  background:var(--accent);transition:left .22s var(--ease),right .22s var(--ease);
}
.chan:hover{color:var(--accent)}
.chan:hover::after{left:0;right:0}
.chan.is-active{color:var(--accent);font-weight:600}
.chan.is-active::after{left:0;right:0}

.drawer{
  position:fixed;inset:0;background:var(--ink);z-index:120;
  padding:20px 20px 40px;display:none;flex-direction:column;
}
.drawer.is-open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{font-size:26px;line-height:1;color:var(--t-dark);width:44px;height:44px}
.drawer-link{
  display:block;font-size:20px;line-height:2.4;color:var(--t-dark-2);
  border-bottom:1px solid var(--line-dark-soft);
}
.drawer-link.is-active{color:var(--accent);font-weight:700}
.drawer-foot{margin-top:auto;font-size:13px;color:var(--t-dark-2);line-height:2}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;background:var(--ink);color:var(--t-dark);
  overflow:hidden;min-height:clamp(360px,48vh,520px);
  display:flex;align-items:flex-end;
}
.article-hero .hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(11,14,18,.55) 0%,rgba(11,14,18,.94) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  transform:scale(1.02);
}
.article-hero .hero-inner{position:relative;width:100%;padding-top:96px;padding-bottom:44px}
.crumbs{
  font-size:14px;color:var(--t-dark-2);display:flex;flex-wrap:wrap;
  gap:8px;align-items:center;margin-bottom:20px;
}
.crumbs a:hover{color:var(--accent)}
.crumbs .sep{color:var(--line-dark)}
.crumbs .now{color:var(--t-dark);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;letter-spacing:.06em;color:var(--t-dark);
  border:1px solid var(--line-dark-strong);border-radius:var(--r-badge);
  padding:4px 10px;background:rgba(255,255,255,.04);
}
.badge::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);
}
.article-hero h1{
  font-size:clamp(36px,4.6vw,52px);font-weight:800;line-height:1.25;
  letter-spacing:-.02em;margin:18px 0 20px;max-width:20em;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  font-size:13px;letter-spacing:.05em;color:var(--t-dark-2);
}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:var(--line-dark)}
.meta-row .cat{color:var(--accent)}

/* ============ 阅读区 ============ */
.read-section{background:var(--light);padding:56px 0 88px}
.read-grid{display:grid;grid-template-columns:minmax(0,780px) 300px;gap:56px;justify-content:start}
.cover-figure{margin-bottom:36px}
.cover-img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-cover);
  background:#12161C;
}
.cover-figure figcaption{
  font-size:13px;color:var(--t-light-3);margin-top:10px;letter-spacing:.04em;
}
.note-card{
  border-left:3px solid var(--accent);background:#FFFFFF;
  border-radius:0 var(--r-card) var(--r-card) 0;
  padding:20px 24px;margin:0 0 34px;
  box-shadow:var(--shadow-light);
}
.note-card h4{font-size:15px;font-weight:700;letter-spacing:.02em;margin-bottom:8px}
.note-card p{font-size:15px;line-height:1.8;color:var(--t-light-2)}
.article-body{max-width:780px}
.article-body > * + *{margin-top:1.1em}
.article-body p{font-size:17px;line-height:1.85;color:#22282F}
.article-body h2{
  font-size:clamp(22px,2.2vw,28px);font-weight:700;line-height:1.3;
  letter-spacing:-.01em;margin-top:2em;margin-bottom:.8em;color:var(--t-light);
}
.article-body h2::after{
  content:"";display:block;width:48px;height:3px;background:var(--accent);margin-top:12px;
}
.article-body h3{
  font-size:19px;font-weight:600;line-height:1.45;
  margin-top:1.8em;margin-bottom:.6em;
}
.article-body ul,.article-body ol{margin:1.1em 0;padding-left:2px}
.article-body li{position:relative;padding-left:22px;line-height:1.9;margin-bottom:.4em;font-size:17px}
.article-body ul > li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;
  background:var(--accent);border-radius:2px;
}
.article-body ol{counter-reset:numlist}
.article-body ol > li{counter-increment:numlist}
.article-body ol > li::before{
  content:counter(numlist);position:absolute;left:0;top:0;
  font-family:var(--num);font-size:15px;font-weight:700;color:var(--accent);
}
.article-body blockquote{
  border-left:3px solid var(--accent);background:#FFFFFF;
  padding:18px 22px;border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--t-light-2);font-size:16px;
}
.article-body img{border-radius:var(--r-cover);margin:1.6em 0;background:#12161C}
.article-body figure figcaption{font-size:13px;color:var(--t-light-3);margin-top:8px}
.article-body a{color:var(--accent);border-bottom:1px solid rgba(255,90,36,.4)}
.article-body a:hover{border-bottom-color:var(--accent)}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;margin:1.6em 0;
  display:block;overflow-x:auto;white-space:nowrap;
}
.article-body thead{background:#EDEAE4}
.article-body th,.article-body td{
  border-bottom:1px solid var(--line-light);padding:12px 14px;text-align:left;
}
.article-body th{font-weight:600;color:var(--t-light)}
.article-body strong{font-weight:700}
.article-body code{
  font-family:var(--num);background:#EDEAE4;border-radius:4px;padding:2px 6px;font-size:15px;
}
.article-body h2,.article-body h3,.article-body img,.article-body table{max-width:100%}

.read-empty{
  border:1px solid var(--line-light);background:#FFFFFF;border-radius:var(--r-card);
  padding:28px 26px;
}
.read-empty p{font-size:16px;color:var(--t-light-2);margin-bottom:18px}

/* 侧栏 */
.side-col{position:relative}
.side-sticky{position:sticky;top:150px;display:grid;gap:26px}
.side-box{
  border-top:1px solid var(--line-light);padding-top:18px;
}
.side-box h3{
  font-size:14px;font-weight:700;letter-spacing:.08em;color:var(--t-light);margin-bottom:14px;
}
.side-list li{border-bottom:1px solid var(--line-light)}
.side-list li:last-child{border-bottom:0}
.side-list a{
  display:flex;justify-content:space-between;gap:12px;
  padding:11px 0;font-size:15px;color:var(--t-light-2);
}
.side-list a:hover{color:var(--accent)}
.side-list .tag{font-size:13px;color:var(--t-light-3);font-family:var(--num)}
.side-note{font-size:13px;line-height:1.9;color:var(--t-light-3)}
.side-back{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;
  color:var(--accent);
}
.side-back svg{width:16px;height:16px;transition:transform .2s var(--ease)}
.side-back:hover svg{transform:translateX(4px)}

/* ============ 通用板块标题 ============ */
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:28px;
}
.sec-head h2{
  font-size:clamp(24px,2.8vw,32px);font-weight:700;line-height:1.2;letter-spacing:-.01em;
}
.sec-head h2::after{
  content:"";display:block;width:48px;height:3px;background:var(--accent);margin-top:12px;
}
.sec-more{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--t-light-2);
}
.sec-more:hover{color:var(--accent)}
.sec-more svg{width:16px;height:16px;transition:transform .2s var(--ease)}
.sec-more:hover svg{transform:translateX(4px)}

/* ============ 相关推荐 ============ */
.related{background:#FFFFFF;padding:72px 0;border-top:1px solid var(--line-light)}
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:6px;scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none}
.rcard{
  flex:0 0 260px;scroll-snap-align:start;
  border:1px solid var(--line-light);border-radius:var(--r-card);background:#FFFFFF;
  overflow:hidden;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.rcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-light);border-color:rgba(11,14,18,.2)}
.rcard .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#12161C}
.rcard .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.rcard:hover .thumb img{transform:scale(1.04)}
.rcard .thumb .chip{
  position:absolute;left:10px;top:10px;
  font-size:12px;letter-spacing:.05em;color:#fff;
  background:rgba(11,14,18,.72);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-badge);padding:3px 9px;
}
.rcard .rc-body{padding:14px 16px 18px}
.rcard h3{font-size:17px;font-weight:600;line-height:1.45;margin-bottom:8px}
.rcard:hover h3{color:var(--accent)}
.rcard p{font-size:14px;line-height:1.7;color:var(--t-light-2)}
.rcard .rc-meta{font-size:13px;color:var(--t-light-3);margin-top:10px;letter-spacing:.04em}

/* ============ 上下篇 ============ */
.pager-wrap{background:#FFFFFF;border-top:1px solid var(--line-light);padding:36px 0 44px}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.pager a{
  border-top:1px solid var(--line-light);padding-top:16px;display:block;
}
.pager .p-label{font-size:13px;letter-spacing:.06em;color:var(--t-light-3);display:block;margin-bottom:6px}
.pager .p-title{font-size:17px;font-weight:600;line-height:1.5;color:var(--t-light)}
.pager a:hover .p-title{color:var(--accent)}
.pager .right{text-align:right}
.pager-links{
  margin-top:28px;display:flex;gap:26px;flex-wrap:wrap;
  font-size:14px;
}
.pager-links a{color:var(--t-light-2);border-bottom:1px solid transparent}
.pager-links a:hover{color:var(--accent);border-bottom-color:var(--accent)}

/* ============ CTA ============ */
.cta-band{
  position:relative;background:var(--ink);color:var(--t-dark);padding:88px 0;
  background-image:
    repeating-linear-gradient(45deg,rgba(255,255,255,.035) 0 1px,transparent 1px 14px);
}
.cta-inner{max-width:640px;margin:0 auto;text-align:center}
.cta-inner h2{
  font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.3;letter-spacing:-.01em;
}
.cta-inner p{font-size:16px;color:var(--t-dark-2);margin-top:14px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover)}
.btn-primary:active{background:var(--accent-press)}
.btn-ghost{border:1px solid rgba(255,255,255,.32);color:var(--t-dark)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-ghost svg{width:16px;height:16px}
.btn-light{background:var(--accent);color:#fff}
.btn-light:hover{background:var(--accent-hover)}
.btn-light:active{background:var(--accent-press)}
.cta-inner .btn{margin-top:28px}
.btn svg{width:16px;height:16px;transition:transform .2s var(--ease)}
.btn:hover svg{transform:translateX(4px)}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--t-dark-2);padding:64px 0 28px;border-top:1px solid var(--line-dark-soft)}
.foot-brand{max-width:380px}
.foot-brand p{margin-top:14px;font-size:14px;line-height:1.9;color:var(--t-dark-2)}
.foot-h{
  font-size:14px;font-weight:700;letter-spacing:.08em;color:var(--t-dark);margin-bottom:16px;
}
.foot-links li,.foot-info li{margin-bottom:11px;font-size:14px;line-height:1.7}
.foot-links a:hover{color:var(--accent)}
.foot-info b{color:var(--t-dark);font-weight:600;margin-right:6px}
.foot-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid var(--line-dark-soft);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7C8794;letter-spacing:.03em;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .read-grid{grid-template-columns:minmax(0,1fr) 280px;gap:40px}
}
@media (max-width:1023px){
  .grid-container{padding-left:24px;padding-right:24px}
  .brand-note{display:none}
  .read-grid{grid-template-columns:minmax(0,1fr);gap:48px}
  .side-sticky{position:static;grid-template-columns:repeat(2,minmax(0,1fr));display:grid;gap:24px 28px}
  .article-hero .hero-inner{padding-top:72px;padding-bottom:36px}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.8}
  .grid-container{padding-left:20px;padding-right:20px}
  .brand-inner{height:56px}
  .menu-btn{display:inline-flex}
  .brand-right{gap:12px}
  .brand-link{display:none}
  .chan-track{height:48px;gap:22px}
  .article-hero{min-height:auto}
  .article-hero .hero-inner{padding-top:56px;padding-bottom:32px}
  .article-hero h1{font-size:clamp(26px,7vw,34px)}
  .crumbs .now{display:none}
  .read-section{padding:40px 0 64px}
  .article-body p,.article-body li{font-size:16px;line-height:1.8}
  .side-sticky{grid-template-columns:minmax(0,1fr)}
  .related{padding:56px 0}
  .rcard{flex:0 0 200px}
  .pager{grid-template-columns:1fr;gap:20px}
  .pager .right{text-align:left}
  .cta-band{padding:64px 0}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (max-width:519px){
  .article-hero h1{font-size:26px}
  .note-card{padding:16px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .rcard:hover,.rcard:hover .thumb img,.btn:hover svg,.sec-more:hover svg,.side-back:hover svg{transform:none}
}

/* roulang page: category1 */
:root{
  --ink:#0B0E12;
  --panel:#12161C;
  --panel-2:#1B2129;
  --line-dark:rgba(255,255,255,.08);
  --line-dark-2:rgba(255,255,255,.18);
  --line-light:rgba(11,14,18,.10);
  --line-light-2:rgba(11,14,18,.18);
  --accent:#FF5A24;
  --accent-h:#E8451A;
  --accent-p:#C93A13;
  --cyan:#17D6A3;
  --paper:#F6F4F0;
  --card:#FFFFFF;
  --t-dark:#F2F4F7;
  --t-dark-2:#A7B0BD;
  --t-light:#14181D;
  --t-light-2:#5C6672;
  --t-light-3:#8B95A5;
  --r-card:12px;
  --r-cover:10px;
  --r-btn:6px;
  --r-badge:4px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --wrap:1280px;
  --shadow-dark:0 18px 40px -18px rgba(0,0,0,.6);
  --shadow-light:0 10px 28px -14px rgba(11,14,18,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--t-light);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;background-color:transparent}
a:hover{color:var(--accent)}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 32px}
.num{font-family:"DIN Alternate","Barlow Condensed",ui-monospace,monospace;font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-head{position:sticky;top:0;z-index:80;background:var(--ink);transition:background-color .24s var(--ease),box-shadow .24s var(--ease)}
.site-head.is-scrolled{background:rgba(11,14,18,.88);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 14px 34px -22px rgba(0,0,0,.95)}
.brandbar{display:flex;align-items:center;gap:26px;height:72px;border-bottom:1px solid var(--line-dark)}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark{width:28px;height:28px;flex:0 0 28px}
.logo-text{font-size:18px;font-weight:800;letter-spacing:-.02em;color:var(--t-dark);line-height:1}
.head-right{margin-left:auto;display:flex;align-items:center;gap:18px}
.head-search{display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;border:1px solid var(--line-dark);border-radius:var(--r-btn);background:rgba(255,255,255,.03);transition:border-color .2s var(--ease)}
.head-search:focus-within{border-color:var(--accent)}
.head-search svg{width:15px;height:15px;flex:0 0 15px;stroke:var(--t-dark-2);fill:none;stroke-width:1.8}
.head-search input{width:150px;background:transparent;border:0;outline:none;color:var(--t-dark);font-size:14px}
.head-search input::placeholder{color:var(--t-light-3)}
.head-region{font-size:13px;letter-spacing:.06em;color:var(--t-dark-2);white-space:nowrap}
.burger{display:none;width:44px;height:44px;align-items:center;justify-content:center;margin-left:auto}
.burger span{display:block;width:20px;height:2px;background:var(--t-dark);position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--t-dark)}
.burger span::before{top:-6px}
.burger span::after{top:6px}
.chanbar{border-bottom:1px solid var(--line-dark)}
.chan-track{display:flex;align-items:center;gap:28px;height:56px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.chan-track::-webkit-scrollbar{display:none}
.chan{position:relative;font-size:15px;color:var(--t-dark-2);padding:8px 0;white-space:nowrap;transition:color .2s var(--ease)}
.chan::after{content:"";position:absolute;left:50%;right:50%;bottom:2px;height:2px;background:var(--accent);transition:left .22s var(--ease),right .22s var(--ease)}
.chan:hover{color:var(--accent)}
.chan:hover::after{left:0;right:0}
.chan.is-active{color:var(--accent)}
.chan.is-active::after{left:0;right:0}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:200;background:var(--ink);transform:translateY(-100%);transition:transform .3s var(--ease);padding:22px 20px 40px;overflow-y:auto}
.drawer.is-open{transform:translateY(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line-dark)}
.drawer-close{width:44px;height:44px;display:flex;align-items:center;justify-content:center;color:var(--t-dark);font-size:26px;line-height:1}
.drawer-nav{margin-top:14px}
.drawer-nav a{display:block;font-size:20px;line-height:2.4;color:var(--t-dark);border-bottom:1px solid var(--line-dark);transition:color .2s var(--ease)}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--accent)}
.drawer-foot{margin-top:34px;font-size:13px;line-height:2;color:var(--t-light-3)}

/* ---------- hero ---------- */
.cat-hero{position:relative;height:clamp(320px,42vh,440px);display:flex;align-items:flex-end;background:var(--ink);overflow:hidden}
.cat-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center 30%;opacity:.6}
.cat-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(11,14,18,.96),rgba(11,14,18,.22))}
.cat-hero-inner{position:relative;z-index:2;padding-bottom:46px;color:var(--t-dark)}
.crumb{font-size:14px;color:var(--t-dark-2);margin-bottom:16px}
.crumb a{color:var(--t-dark-2)}
.crumb a:hover{color:var(--accent)}
.cat-hero h1{font-size:clamp(32px,4.6vw,56px);font-weight:800;line-height:1.1;letter-spacing:-.02em;color:#fff}
.cat-lead{margin-top:16px;max-width:720px;font-size:17px;line-height:1.8;color:var(--t-dark-2)}

/* ---------- metrics ---------- */
.metric-strip{background:var(--paper);padding:64px 0 8px}
.metric-row{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{padding:0 28px;border-left:1px solid var(--line-light)}
.metric:first-child{border-left:0;padding-left:0}
.metric-num{display:block;font-size:clamp(34px,4vw,52px);font-weight:800;line-height:1;color:var(--t-light);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.metric-label{display:block;margin-top:12px;font-size:13px;letter-spacing:.06em;color:var(--t-light-2)}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section-dark{background:var(--ink);color:var(--t-dark)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sec-title{font-size:clamp(24px,2.8vw,38px);font-weight:700;line-height:1.25;color:inherit}
.sec-title::after{content:"";display:block;width:48px;height:3px;background:var(--accent);margin-top:14px}
.section-dark .sec-title::after{background:var(--accent)}
.sec-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--t-light-2);white-space:nowrap;transition:color .2s var(--ease)}
.section-dark .sec-more{color:var(--t-dark-2)}
.sec-more:hover{color:var(--accent)}
.sec-more svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;transition:transform .2s var(--ease)}
.sec-more:hover svg{transform:translateX(4px)}
.sec-sub{margin-top:14px;font-size:16px;color:var(--t-light-2);max-width:640px}
.section-dark .sec-sub{color:var(--t-dark-2)}

/* ---------- picks ---------- */
.pick-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px}
.pick-main{position:relative;display:flex;align-items:flex-end;min-height:420px;border-radius:var(--r-card);overflow:hidden;background:var(--panel-2);border:1px solid var(--line-light)}
.pick-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.pick-main:hover img{transform:scale(1.04)}
.pick-main::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(11,14,18,.94),rgba(11,14,18,.12))}
.pick-main-body{position:relative;z-index:2;padding:32px 32px 32px 28px;border-left:3px solid var(--accent)}
.pick-main-body h3{font-size:clamp(20px,2vw,26px);font-weight:700;line-height:1.35;color:#fff;margin-top:14px}
.pick-main-body p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--t-dark-2);max-width:520px}
.pick-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.pick-mini{display:grid;grid-template-columns:150px 1fr;background:var(--card);border:1px solid var(--line-light);border-radius:var(--r-card);overflow:hidden;transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease)}
.pick-mini:hover{transform:translateY(-4px);box-shadow:var(--shadow-light);border-color:var(--line-light-2)}
.pick-mini-cover{position:relative;overflow:hidden;background:var(--panel-2)}
.pick-mini-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.pick-mini:hover .pick-mini-cover img{transform:scale(1.04)}
.pick-mini-body{padding:20px 22px;display:flex;flex-direction:column;gap:10px}
.pick-mini-body h3{font-size:17px;font-weight:600;line-height:1.45;color:var(--t-light)}
.pick-mini-body p{font-size:14px;line-height:1.75;color:var(--t-light-2)}
.pick-mini-foot{margin-top:auto;font-size:13px;letter-spacing:.06em;color:var(--t-light-3)}

/* ---------- badge ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--r-badge);background:rgba(11,14,18,.72);color:var(--t-dark);font-size:12px;letter-spacing:.06em;line-height:1.6}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);flex:0 0 6px}
.badge-light{background:rgba(11,14,18,.06);color:var(--t-light-2)}
.badge-light::before{background:var(--accent)}

/* ---------- cards grid ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line-light);border-radius:var(--r-card);overflow:hidden;transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-light);border-color:var(--line-light-2)}
.card-cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--panel-2)}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.card:hover .card-cover img{transform:scale(1.04)}
.card-cover .badge{position:absolute;left:12px;top:12px}
.card-body{display:flex;flex-direction:column;gap:10px;padding:22px 22px 24px;flex:1}
.card-title{font-size:18px;font-weight:600;line-height:1.45;color:var(--t-light)}
.card-text{font-size:15px;line-height:1.8;color:var(--t-light-2)}
.card-foot{margin-top:auto;padding-top:6px;font-size:13px;letter-spacing:.06em;color:var(--t-light-3);display:inline-flex;align-items:center;gap:6px;transition:color .2s var(--ease)}
.card-foot svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:1.8;transition:transform .2s var(--ease)}
.card:hover .card-foot{color:var(--accent)}
.card:hover .card-foot svg{transform:translateX(4px)}

/* ---------- flow ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.step{padding:0 26px;border-left:1px solid var(--line-dark)}
.step:first-child{border-left:0;padding-left:0}
.step-num{display:block;font-size:28px;font-weight:800;line-height:1;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.step h3{margin:14px 0 10px;font-size:17px;font-weight:600;line-height:1.45;color:var(--t-dark)}
.step p{font-size:15px;line-height:1.8;color:var(--t-dark-2)}

/* ---------- faq ---------- */
.faq-list{max-width:880px;margin:0 auto}
.faq-item{border-top:1px solid var(--line-light)}
.faq-item:last-child{border-bottom:1px solid var(--line-light)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;padding:22px 0;text-align:left;font-size:17px;font-weight:600;line-height:1.6;color:var(--t-light);transition:color .2s var(--ease)}
.faq-q:hover{color:var(--accent)}
.faq-sign{position:relative;flex:0 0 18px;width:18px;height:18px;transition:transform .24s var(--ease)}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--cyan)}
.faq-sign::before{left:0;top:8px;width:18px;height:2px}
.faq-sign::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-sign{transform:rotate(45deg)}
.faq-item.is-open .faq-q{color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-a p{padding:0 0 26px;max-width:760px;font-size:15px;line-height:1.8;color:var(--t-light-2)}

/* ---------- cta ---------- */
.cta-band{position:relative;background:var(--panel);overflow:hidden;padding:96px 0;text-align:center}
.cta-band::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.04) 0 1px,transparent 1px 15px)}
.cta-inner{position:relative;z-index:2;max-width:640px;margin:0 auto}
.cta-inner h2{font-size:clamp(24px,2.8vw,38px);font-weight:700;line-height:1.25;color:#fff}
.cta-inner p{margin-top:18px;font-size:16px;line-height:1.8;color:var(--t-dark-2)}
.cta-inner .btn{margin-top:32px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:48px;padding:0 28px;border:1px solid transparent;border-radius:var(--r-btn);font-size:16px;font-weight:600;line-height:1;transition:background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease)}
.btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.9;transition:transform .2s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-h);color:#fff}
.btn-primary:active{background:var(--accent-p)}
.btn-ghost{border-color:var(--line-dark-2);color:var(--t-dark);background:transparent}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-ghost-light{border-color:var(--line-light-2);color:var(--t-light);background:transparent}
.btn-ghost-light:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);border-top:1px solid var(--line-dark);padding:72px 0 0;color:var(--t-dark-2)}
.row-gut{margin-left:-16px;margin-right:-16px}
.row-gut>.cell{padding-left:16px;padding-right:16px;margin-bottom:38px}
.foot-brand .logo{margin-bottom:0}
.foot-brand p{margin-top:16px;max-width:340px;font-size:14px;line-height:1.8;color:var(--t-dark-2)}
.foot-h{font-size:14px;font-weight:600;letter-spacing:.06em;color:var(--t-dark);margin-bottom:18px}
.foot-links,.foot-info{display:grid;gap:12px;font-size:14px;line-height:1.7}
.foot-links a{color:var(--t-dark-2);transition:color .2s var(--ease)}
.foot-links a:hover{color:var(--accent)}
.foot-info li{color:var(--t-dark-2)}
.foot-info b{color:var(--t-dark);font-weight:600}
.foot-bottom{display:flex;justify-content:space-between;gap:16px;margin-top:10px;padding:22px 0;border-top:1px solid var(--line-dark);font-size:13px;color:var(--t-light-3)}

/* ---------- responsive ---------- */
@media screen and (max-width:1024px){
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .pick-grid{grid-template-columns:1fr}
  .pick-side{grid-template-rows:auto;grid-template-columns:1fr 1fr}
  .flow-grid{grid-template-columns:repeat(2,1fr);gap:44px 0}
  .step{padding:0 24px}
  .step:nth-child(odd){border-left:0;padding-left:0}
  .step:nth-child(even){border-left:1px solid var(--line-dark)}
  .section{padding:76px 0}
}
@media screen and (max-width:768px){
  body{font-size:16px;line-height:1.8}
  .wrap{padding:0 20px}
  .head-search{display:none}
  .head-region{display:none}
  .burger{display:inline-flex}
  .brandbar{height:56px}
  .chan-track{height:48px;gap:22px}
  .chan{font-size:14px}
  .cat-hero{height:clamp(300px,64vh,420px)}
  .cat-hero-inner{padding-bottom:34px}
  .cat-lead{font-size:15px}
  .metric-strip{padding:48px 0 0}
  .metric-row{grid-template-columns:1fr 1fr;row-gap:36px}
  .metric{padding:0 18px}
  .metric:nth-child(odd){border-left:0;padding-left:0}
  .metric:nth-child(even){border-left:1px solid var(--line-light)}
  .metric-num{font-size:36px}
  .section{padding:56px 0}
  .sec-head{align-items:flex-start;flex-direction:column;gap:14px;margin-bottom:28px}
  .pick-main{min-height:320px}
  .pick-main-body{padding:24px 22px 24px 20px}
  .pick-side{grid-template-columns:1fr}
  .pick-mini{grid-template-columns:120px 1fr}
  .card-grid{grid-template-columns:1fr;gap:22px}
  .flow-grid{grid-template-columns:1fr;gap:34px 0}
  .step,.step:nth-child(even){border-left:0;padding:0}
  .cta-band{padding:64px 0}
  .foot-bottom{flex-direction:column;gap:8px}
  .btn{height:46px;padding:0 22px;font-size:15px}
}
@media screen and (max-width:480px){
  .metric-row{grid-template-columns:1fr;row-gap:30px}
  .metric,.metric:nth-child(even){border-left:0;padding-left:0}
  .pick-mini{grid-template-columns:100px 1fr}
  .pick-mini-body{padding:16px}
  .cat-hero h1{font-size:30px}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none!important;transition:none!important}
  .card:hover,.pick-mini:hover{transform:none}
  .card:hover .card-cover img,.pick-main:hover img,.pick-mini:hover .pick-mini-cover img{transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#0B0E12;
  --panel:#12161C;
  --panel-2:#1B2129;
  --line-dark:#2A323C;
  --accent:#FF5A24;
  --accent-hover:#E8451A;
  --accent-active:#C93A13;
  --teal:#17D6A3;
  --paper:#F6F4F0;
  --card:#FFFFFF;
  --line-light:rgba(11,14,18,.10);
  --line-light-strong:rgba(11,14,18,.18);
  --text-on-dark:#F2F4F7;
  --text-on-dark-dim:#A7B0BD;
  --text:#14181D;
  --text-mute:#5C6672;
  --text-weak:#8B95A5;
  --r-card:12px;
  --r-cover:10px;
  --r-btn:6px;
  --r-badge:4px;
  --wrap-max:1280px;
  --shadow-dark:0 18px 40px -18px rgba(0,0,0,.6);
  --shadow-light:0 10px 28px -14px rgba(11,14,18,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"DIN Alternate","Barlow Condensed",ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,blockquote,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease)}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
::selection{background:rgba(255,90,36,.22)}

.wrap{width:100%;max-width:var(--wrap-max);margin:0 auto;padding:0 32px}
.row-gut{margin-left:-14px;margin-right:-14px}
.row-gut>.cell{padding-left:14px;padding-right:14px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60}
.brandbar{background:var(--ink);border-bottom:1px solid rgba(255,255,255,.08);transition:background .22s var(--ease),backdrop-filter .22s var(--ease)}
.site-header.is-stuck .brandbar{background:rgba(11,14,18,.88);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.brand-track{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:72px}
.logo{display:inline-flex;align-items:center;gap:10px}
.logo-mark{width:28px;height:28px;flex:none}
.logo-text{font-size:18px;font-weight:800;letter-spacing:-.02em;color:var(--text-on-dark)}
.brand-side{display:flex;align-items:center;gap:24px;font-size:13px;letter-spacing:.06em;color:var(--text-on-dark-dim)}
.brand-status{display:inline-flex;align-items:center;gap:7px}
.brand-status i{width:6px;height:6px;border-radius:50%;background:var(--teal);display:block}
.brand-lang{color:var(--text-on-dark-dim)}
.burger{display:none;width:44px;height:44px;border:0;background:transparent;padding:0;flex-direction:column;justify-content:center;align-items:flex-end;gap:5px}
.burger span{display:block;width:22px;height:2px;background:var(--text-on-dark);transition:transform .22s var(--ease),opacity .22s var(--ease)}
.burger span:nth-child(2){width:16px}

.chanbar{background:var(--panel);border-bottom:1px solid rgba(255,255,255,.08)}
.chan-track{display:flex;gap:28px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.chan-track::-webkit-scrollbar{display:none}
.chan{position:relative;display:inline-flex;align-items:center;min-height:46px;padding:12px 0;font-size:15px;font-weight:500;color:var(--text-on-dark-dim);white-space:nowrap}
.chan::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:center;transition:transform .22s var(--ease)}
.chan:hover{color:var(--text-on-dark)}
.chan:hover::after{transform:scaleX(1)}
.chan.is-active{color:var(--accent)}
.chan.is-active::after{transform:scaleX(1)}

.drawer{position:fixed;inset:0;z-index:90;background:var(--ink);display:none;overflow-y:auto}
.drawer.is-open{display:block}
.drawer-inner{padding:22px 0 48px;max-width:var(--wrap-max);margin:0 auto;width:100%}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding:0 20px 20px;border-bottom:1px solid rgba(255,255,255,.08)}
.drawer-close{width:44px;height:44px;border:1px solid rgba(255,255,255,.18);border-radius:var(--r-btn);background:transparent;color:var(--text-on-dark);font-size:20px;line-height:1}
.drawer-title{font-size:13px;letter-spacing:.1em;color:var(--text-on-dark-dim);padding:26px 20px 10px}
.drawer-nav a{display:block;padding:0 20px;font-size:20px;line-height:2.4;color:var(--text-on-dark);border-bottom:1px solid rgba(255,255,255,.06)}
.drawer-nav a.is-active{color:var(--accent)}
.drawer-note{padding:26px 20px 0;font-size:14px;color:var(--text-on-dark-dim);line-height:1.9}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:48px;padding:0 28px;border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:600;transition:background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease)}
.btn .arw{transition:transform .22s var(--ease)}
.btn:hover .arw{transform:translateX(4px)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover)}
.btn-primary:active{background:var(--accent-active)}
.btn-ghost{border-color:rgba(255,255,255,.28);color:var(--text-on-dark);background:transparent}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-ghost-light{border-color:var(--line-light-strong);color:var(--text);background:transparent}
.btn-ghost-light:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- shared bits ---------- */
.badge{display:inline-flex;align-items:center;gap:7px;font-size:12px;letter-spacing:.06em;padding:5px 10px;border-radius:var(--r-badge);border:1px solid rgba(255,255,255,.18);color:var(--text-on-dark-dim)}
.badge i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block}
.badge-light{border-color:var(--line-light-strong);color:var(--text-mute)}
.badge-light i{background:var(--teal)}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-paper{background:var(--paper)}
.section-white{background:#fff;border-top:1px solid var(--line-light);border-bottom:1px solid var(--line-light)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.sec-head h2{font-size:clamp(24px,2.8vw,36px);font-weight:700;line-height:1.2;letter-spacing:-.01em}
.sec-head h2::after{content:"";display:block;width:48px;height:3px;background:var(--accent);margin-top:14px}
.sec-head p{font-size:15px;color:var(--text-mute);margin-top:14px;max-width:640px}
.sec-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--text-mute);white-space:nowrap}
.sec-link:hover{color:var(--accent)}
.sec-link span{transition:transform .22s var(--ease)}
.sec-link:hover span{transform:translateX(4px)}

/* ---------- hero ---------- */
.cat-hero{position:relative;background:linear-gradient(180deg,rgba(11,14,18,.88),rgba(11,14,18,.97)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;color:var(--text-on-dark)}
.cat-hero .wrap{padding-top:56px;padding-bottom:56px}
.cat-hero h1{font-size:clamp(32px,4.6vw,52px);font-weight:800;line-height:1.12;letter-spacing:-.02em;margin-top:20px;max-width:18em}
.hero-lead{font-size:17px;color:var(--text-on-dark-dim);max-width:540px;margin:20px 0 30px;line-height:1.85}
.hero-figure{max-width:340px;margin-left:auto;aspect-ratio:4/5;border-radius:var(--r-card);overflow:hidden;border:1px solid rgba(255,255,255,.14);background:var(--panel-2)}
.hero-figure img{width:100%;height:100%;object-fit:cover}

/* ---------- stats ---------- */
.stats{background:var(--ink);color:var(--text-on-dark);padding:8px 0 40px}
.stats .row-gut{border-top:1px solid rgba(255,255,255,.08)}
.stat{padding:34px 22px;border-left:1px solid rgba(255,255,255,.08);height:100%}
.stat:first-child{border-left:0;padding-left:0}
.stat-num{font-family:var(--font-num);font-size:clamp(36px,4.4vw,56px);font-weight:800;line-height:1;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.stat-num em{font-style:normal;font-size:.42em;color:var(--accent);margin-left:4px;letter-spacing:0}
.stat p{font-size:13px;color:var(--text-on-dark-dim);margin-top:12px;letter-spacing:.04em;line-height:1.7}

/* ---------- sidebar + grid ---------- */
.side-panel{position:sticky;top:132px}
.side-title{font-size:13px;letter-spacing:.08em;color:var(--text-weak);margin-bottom:14px}
.side-nav{border-top:1px solid var(--line-light)}
.side-nav li{border-bottom:1px solid var(--line-light)}
.side-nav a{position:relative;display:block;padding:14px 0 14px 15px;font-size:15px;color:var(--text-mute)}
.side-nav a::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:transparent;transition:background .22s var(--ease)}
.side-nav a:hover{color:var(--accent)}
.side-nav a.is-current{color:var(--text);font-weight:600}
.side-nav a.is-current::before{background:var(--accent)}
.side-note{margin-top:18px;font-size:13px;line-height:1.8;color:var(--text-weak)}

.card{display:flex;flex-direction:column;height:100%;background:var(--card);border:1px solid var(--line-light);border-radius:var(--r-card);overflow:hidden;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-light);border-color:var(--line-light-strong)}
.card-thumb{position:relative;aspect-ratio:16/10;background:var(--panel);overflow:hidden}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.card:hover .card-thumb img{transform:scale(1.04)}
.card-tag{position:absolute;left:12px;top:12px;padding:4px 9px;border-radius:var(--r-badge);background:rgba(11,14,18,.78);color:var(--text-on-dark);font-size:12px;letter-spacing:.06em}
.card-body{display:flex;flex-direction:column;gap:10px;flex:1;padding:18px 20px 20px}
.card-body h3{font-size:18px;font-weight:600;line-height:1.45}
.card-body p{font-size:15px;line-height:1.75;color:var(--text-mute)}
.card-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-weak);letter-spacing:.04em}
.card-meta i{width:4px;height:4px;border-radius:50%;background:rgba(11,14,18,.2);display:block}
.card-list{margin-bottom:28px}
.card-list:last-child{margin-bottom:0}

/* ---------- focus strip ---------- */
.focus-strip{background:#fff;border-top:1px solid var(--line-light);border-bottom:1px solid var(--line-light)}
.focus-inner{display:flex;align-items:center;gap:18px;min-height:76px;padding:14px 0}
.focus-label{flex:none;font-size:12px;letter-spacing:.08em;color:var(--accent);border:1px solid rgba(255,90,36,.35);border-radius:var(--r-badge);padding:4px 9px}
.focus-title{flex:1;font-size:18px;font-weight:600;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.focus-time{flex:none;font-size:13px;color:var(--text-weak);letter-spacing:.04em}
.focus-arw{flex:none;color:var(--text-weak);transition:transform .22s var(--ease),color .22s var(--ease)}
.focus-inner:hover .focus-title{color:var(--accent)}
.focus-inner:hover .focus-arw{transform:translateX(4px);color:var(--accent)}

/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line-light)}
.flow-item{padding:30px 26px 30px 0;border-right:1px solid var(--line-light)}
.flow-item+.flow-item{padding-left:26px}
.flow-item:last-child{border-right:0;padding-right:0}
.flow-num{font-family:var(--font-num);font-size:28px;font-weight:800;letter-spacing:-.02em;color:var(--accent);font-variant-numeric:tabular-nums}
.flow-item h3{font-size:17px;font-weight:600;margin:12px 0 8px;line-height:1.45}
.flow-item p{font-size:15px;line-height:1.78;color:var(--text-mute)}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line-light)}
.faq details{border-bottom:1px solid var(--line-light)}
.faq summary{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 0;min-height:44px;font-size:17px;font-weight:600;color:var(--text);list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";flex:none;font-size:22px;line-height:1;color:var(--teal);transition:transform .22s var(--ease)}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq-body{border-top:1px solid var(--line-light);background:#fff;padding:18px 20px 22px}
.faq-body p{font-size:15px;line-height:1.8;color:var(--text-mute)}

/* ---------- cta ---------- */
.cta-band{position:relative;background:var(--ink);color:var(--text-on-dark);padding:92px 0;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.04) 0 1px,transparent 1px 16px)}
.cta-inner{position:relative;max-width:640px;margin:0 auto;text-align:center}
.cta-inner h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.35;letter-spacing:-.01em}
.cta-inner h2::after{content:"";display:block;width:48px;height:3px;background:var(--accent);margin:20px auto 0}
.cta-inner p{margin:18px 0 30px;font-size:16px;color:var(--text-on-dark-dim)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:var(--text-on-dark-dim);border-top:1px solid rgba(255,255,255,.08);padding:64px 0 0;font-size:15px}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.8;max-width:330px}
.foot-h{font-size:14px;font-weight:700;color:var(--text-on-dark);letter-spacing:.02em;margin-bottom:16px}
.foot-links li{margin-bottom:10px}
.foot-links a{font-size:14px;color:var(--text-on-dark-dim)}
.foot-links a:hover{color:var(--accent)}
.foot-info{font-size:14px;line-height:1.95}
.foot-info li{margin-bottom:6px}
.foot-info b{color:var(--text-on-dark);font-weight:600}
.foot-bottom{margin-top:48px;padding:22px 0;border-top:1px solid rgba(255,255,255,.08);display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:13px;color:var(--text-weak)}

@media (max-width:1024px){
  .brand-status{display:none}
  .burger{display:flex}
  .side-panel{position:static;margin-bottom:36px}
  .flow{grid-template-columns:repeat(2,1fr)}
  .flow-item:nth-child(2n){border-right:0;padding-right:0}
  .flow-item:nth-child(2n+1){padding-left:0}
  .flow-item{border-bottom:1px solid var(--line-light);padding-bottom:26px}
  .flow-item:nth-last-child(-n+2){border-bottom:0;padding-bottom:0}
  .flow-item:nth-child(3),.flow-item:nth-child(4){padding-top:26px}
}
@media (max-width:768px){
  .wrap{padding:0 24px}
  .brand-track{min-height:56px}
  .section{padding:64px 0}
  .section-tight{padding:56px 0}
  .chan-track{-webkit-mask-image:linear-gradient(90deg,#000 88%,transparent 100%);mask-image:linear-gradient(90deg,#000 88%,transparent 100%)}
  .cat-hero .wrap{padding-top:40px;padding-bottom:44px}
  .hero-figure{max-width:100%;margin:30px 0 0;aspect-ratio:16/10}
  .hero-lead{margin-bottom:24px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .stat{border-left:0;padding:24px 0;border-bottom:1px solid rgba(255,255,255,.08)}
  .stat p{margin-top:8px}
  .stats .row-gut{border-top:0}
  .focus-inner{flex-wrap:wrap;gap:10px;padding:18px 0}
  .focus-title{white-space:normal;font-size:17px;flex:1 1 100%;order:3}
  .focus-time{order:2}
  .focus-arw{display:none}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  body{font-size:16px}
  .wrap{padding:0 20px}
  .section{padding:56px 0}
  .cat-hero h1{font-size:clamp(28px,7.6vw,38px)}
  .btn{width:100%}
  .btn+.btn{margin-top:12px}
  .flow{grid-template-columns:1fr}
  .flow-item{border-right:0!important;padding-left:0!important;padding-right:0!important;padding-top:24px;padding-bottom:24px;border-bottom:1px solid var(--line-light)!important}
  .flow-item:last-child{border-bottom:0!important}
  .stat-num{font-size:40px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms!important;animation-duration:.01ms!important}
  .card:hover{transform:none}
  .card:hover .card-thumb img{transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --ink:#0B0E12;
  --ink-2:#12161C;
  --ink-3:#1B2129;
  --line-dark:#2A323C;
  --accent:#FF5A24;
  --accent-h:#E8451A;
  --accent-p:#C93A13;
  --mint:#17D6A3;
  --paper:#F6F4F0;
  --card:#FFFFFF;
  --line-l:rgba(11,14,18,.10);
  --t-dark:#F2F4F7;
  --t-dark2:#A7B0BD;
  --t:#14181D;
  --t2:#5C6672;
  --t3:#8B95A5;
  --r-card:12px;
  --r-cover:10px;
  --r-btn:6px;
  --r-badge:4px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --num:"DIN Alternate","Barlow Condensed",ui-monospace,monospace;
  --pad:32px;
  --gap-s:12px;
  --gap-m:24px;
  --gap-l:96px;
  --shadow-dark:0 18px 40px -18px rgba(0,0,0,.6);
  --shadow-light:0 10px 28px -14px rgba(11,14,18,.18);
}

/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  color:var(--t);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.2;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;padding:0;}
:focus{outline:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}
::selection{background:var(--accent);color:#fff;}

/* ============ 容器 ============ */
.wrap{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 var(--pad);
}
.row-gut{margin-left:-12px;margin-right:-12px;}
.row-gut > .cell{padding-left:12px;padding-right:12px;}

/* ============ 头部 品牌行 ============ */
.site-head{position:relative;z-index:60;background:var(--ink);}
.site-head.is-stuck .brandbar{
  position:fixed;
  top:0;left:0;right:0;
  background:rgba(11,14,18,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:0 10px 30px -18px rgba(0,0,0,.8);
}
.brandbar{
  height:72px;
  border-bottom:1px solid rgba(255,255,255,.08);
  background:var(--ink);
}
.brand-inner{
  height:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--gap-m);
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{height:28px;width:28px;flex-shrink:0;}
.logo-text{
  font-size:18px;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--t-dark);
  white-space:nowrap;
}
.logo:hover .logo-text{color:var(--accent);}
.brand-side{display:flex;align-items:center;gap:22px;margin-left:auto;}
.brand-search{
  display:flex;
  align-items:center;
  gap:6px;
  height:38px;
  padding:0 6px 0 14px;
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-btn);
  background:rgba(255,255,255,.03);
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.brand-search:focus-within{border-color:var(--accent);background:rgba(255,90,36,.06);}
.brand-search input{
  width:170px;
  border:0;background:transparent;
  color:var(--t-dark);
  font-size:14px;
  height:100%;
}
.brand-search input::placeholder{color:rgba(167,176,189,.75);}
.brand-search button{
  width:32px;height:28px;
  display:flex;align-items:center;justify-content:center;
  color:var(--t-dark2);
  border-radius:4px;
  transition:color .2s var(--ease);
}
.brand-search button:hover{color:var(--accent);}
.brand-search svg{width:15px;height:15px;}
.brand-region{font-size:13px;color:var(--t-dark2);letter-spacing:.04em;white-space:nowrap;}
.brand-more{
  font-size:14px;font-weight:600;color:var(--t-dark);
  padding-bottom:2px;
  border-bottom:1px solid rgba(255,255,255,.24);
  white-space:nowrap;
}
.brand-more:hover{color:var(--accent);border-color:var(--accent);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  flex-direction:column;justify-content:center;align-items:center;gap:5px;
  margin-right:-8px;
}
.nav-toggle span{
  display:block;width:22px;height:2px;background:var(--t-dark);border-radius:2px;
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 频道行 ============ */
.chanbar{
  background:var(--ink);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.chan-track{
  display:flex;
  align-items:stretch;
  gap:28px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.chan-track::-webkit-scrollbar{display:none;}
.chan{
  position:relative;
  flex:0 0 auto;
  padding:15px 0 13px;
  font-size:15px;
  font-weight:500;
  color:var(--t-dark2);
  white-space:nowrap;
}
.chan::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transition:transform .22s var(--ease);
}
.chan:hover{color:var(--accent);}
.chan:hover::after{transform:scaleX(1);}
.chan.is-active{color:var(--accent);font-weight:600;}
.chan.is-active::after{transform:scaleX(1);}

/* ============ 移动抽屉 ============ */
.drawer{
  position:fixed;inset:0;
  background:var(--ink);
  z-index:200;
  padding:88px var(--pad) 40px;
  overflow-y:auto;
  transform:translateY(-12px);
  opacity:0;visibility:hidden;
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer-close{
  position:absolute;top:20px;right:var(--pad);
  width:44px;height:44px;
  color:var(--t-dark);font-size:26px;line-height:1;
}
.drawer h3{font-size:13px;letter-spacing:.1em;color:var(--t-dark2);font-weight:600;margin-bottom:10px;}
.drawer-chans{margin-bottom:40px;}
.drawer-chans a{
  display:block;
  font-size:20px;
  font-weight:600;
  line-height:2.4;
  color:var(--t-dark);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.drawer-chans a.is-active{color:var(--accent);}
.drawer-info{font-size:14px;line-height:2;color:var(--t-dark2);}

/* ============ Hero ============ */
.cat-hero{
  position:relative;
  min-height:clamp(320px,48vh,520px);
  display:flex;
  align-items:flex-end;
  background-color:var(--ink-2);
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,14,18,.18) 0%,rgba(11,14,18,.92) 88%);
}
.cat-hero .wrap{position:relative;z-index:2;padding-top:110px;padding-bottom:56px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;
  color:var(--mint);
  margin-bottom:18px;
}
.hero-eyebrow::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--mint);
  box-shadow:0 0 0 4px rgba(23,214,163,.16);
}
.cat-hero h1{
  font-size:clamp(38px,5vw,64px);
  font-weight:800;
  line-height:1.08;
  letter-spacing:-.02em;
  color:var(--t-dark);
  max-width:16em;
}
.cat-hero .hero-sub{
  margin-top:20px;
  max-width:660px;
  font-size:16px;
  line-height:1.8;
  color:var(--t-dark2);
}

/* ============ 频道标签条 ============ */
.tagbar{
  background:var(--ink);
  border-top:1px solid rgba(255,255,255,.08);
}
.tagbar-track{
  display:flex;gap:10px;
  padding:16px 0;
  overflow-x:auto;
  scrollbar-width:none;
}
.tagbar-track::-webkit-scrollbar{display:none;}
.tag-chip{
  flex:0 0 auto;
  display:inline-flex;align-items:center;gap:7px;
  height:36px;
  padding:0 16px;
  font-size:14px;
  color:var(--t-dark2);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-badge);
  white-space:nowrap;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.tag-chip::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--ink-3);
  transition:background .2s var(--ease);
}
.tag-chip:hover{color:var(--t-dark);border-color:rgba(255,255,255,.3);}
.tag-chip.is-current{
  color:#fff;
  border-color:var(--accent);
  background:rgba(255,90,36,.12);
}
.tag-chip.is-current::before{background:var(--accent);}

/* ============ 通用板块 ============ */
.section{padding:var(--gap-l) 0;}
.section--tight{padding:64px 0;}
.section-head{margin-bottom:40px;}
.eyebrow{
  display:block;
  font-size:13px;
  letter-spacing:.1em;
  color:var(--accent);
  font-weight:600;
  margin-bottom:12px;
}
.section-head h2{
  font-size:clamp(24px,2.8vw,38px);
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--t);
}
.section-head h2::after{
  content:"";
  display:block;
  width:48px;height:3px;
  margin-top:14px;
  background:var(--accent);
  border-radius:2px;
}
.section-head .lead{
  margin-top:18px;
  max-width:760px;
  font-size:16px;
  line-height:1.85;
  color:var(--t2);
}
.section-head--row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--accent);
  white-space:nowrap;
  padding-bottom:2px;
}
.link-more svg{width:16px;height:16px;transition:transform .2s var(--ease);}
.link-more:hover svg{transform:translateX(4px);}

/* ============ 指标条 ============ */
.metrics{
  background:var(--ink);
  padding:56px 0;
}
.metric-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
}
.metric{
  padding:4px 32px;
  border-left:1px solid rgba(255,255,255,.10);
}
.metric:first-child{border-left:0;padding-left:0;}
.metric-num{
  font-family:var(--num);
  font-size:clamp(34px,3.6vw,52px);
  font-weight:800;
  line-height:1.05;
  color:var(--t-dark);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}
.metric-num em{font-style:normal;color:var(--accent);font-size:.62em;margin-left:2px;}
.metric-label{
  margin-top:8px;
  font-size:13px;
  letter-spacing:.06em;
  color:var(--t-dark2);
}

/* ============ 杂志式长列表 ============ */
.feed{border-top:1px solid var(--line-l);}
.feed-row{
  display:grid;
  grid-template-columns:200px 1fr;
  gap:28px;
  padding:28px 0;
  border-bottom:1px solid var(--line-l);
  transition:background .22s var(--ease);
}
.feed-row:hover{background:rgba(255,255,255,.62);}
.feed-thumb{
  position:relative;
  aspect-ratio:16/10;
  border-radius:var(--r-cover);
  overflow:hidden;
  background:var(--ink-3);
}
.feed-thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .35s var(--ease);
}
.feed-row:hover .feed-thumb img{transform:scale(1.04);}
.feed-body{min-width:0;}
.feed-top{
  display:flex;align-items:center;gap:12px;
  margin-bottom:10px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;
  padding:0 9px;
  font-size:12px;
  font-weight:500;
  letter-spacing:.05em;
  color:var(--t2);
  background:rgba(11,14,18,.05);
  border-radius:var(--r-badge);
  white-space:nowrap;
}
.badge::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--mint);
}
.badge--accent{color:var(--accent);background:rgba(255,90,36,.09);}
.badge--accent::before{background:var(--accent);}
.feed-time{
  font-family:var(--num);
  font-size:13px;
  letter-spacing:.04em;
  color:var(--t3);
}
.feed-body h3{
  font-size:19px;
  font-weight:600;
  line-height:1.5;
  color:var(--t);
  transition:color .2s var(--ease);
}
.feed-row:hover .feed-body h3{color:var(--accent);}
.feed-body p{
  margin-top:8px;
  font-size:15px;
  line-height:1.8;
  color:var(--t2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.feed-foot{
  margin-top:12px;
  display:flex;align-items:center;gap:18px;
  font-size:13px;
  color:var(--t3);
}
.feed-foot .dot{width:3px;height:3px;border-radius:50%;background:var(--t3);}

/* ============ 解析维度 ============ */
.dims{
  background:var(--card);
  border-top:1px solid var(--line-l);
  border-bottom:1px solid var(--line-l);
}
.dim-list{border-top:1px solid var(--line-l);}
.dim-item{
  display:grid;
  grid-template-columns:88px 1fr;
  gap:24px;
  padding:26px 0;
  border-bottom:1px solid var(--line-l);
  align-items:start;
}
.dim-num{
  font-family:var(--num);
  font-size:28px;
  font-weight:800;
  line-height:1.2;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.dim-item h3{font-size:18px;font-weight:600;line-height:1.5;color:var(--t);}
.dim-item p{margin-top:8px;font-size:15px;line-height:1.85;color:var(--t2);max-width:820px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.faq-item{border-bottom:1px solid var(--line-l);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;
  font-size:17px;
  font-weight:600;
  color:var(--t);
  cursor:pointer;
  list-style:none;
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--accent);}
.faq-icon{
  position:relative;
  flex:0 0 auto;
  width:22px;height:22px;
  transition:transform .25s var(--ease);
}
.faq-icon::before,
.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--mint);
  border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-item[open] summary{color:var(--accent);}
.faq-body{
  padding:2px 0 24px;
  border-top:1px solid var(--line-l);
  background:linear-gradient(180deg,rgba(11,14,18,.028),rgba(11,14,18,0));
  padding-left:18px;
  padding-right:18px;
  border-radius:0 0 var(--r-badge) var(--r-badge);
}
.faq-body p{
  padding-top:18px;
  font-size:15px;
  line-height:1.85;
  color:var(--t2);
  max-width:760px;
}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;
  background:var(--ink);
  padding:88px 0;
  overflow:hidden;
  text-align:center;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 1px,transparent 1px 14px);
  opacity:.5;
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;max-width:640px;margin:0 auto;}
.cta-inner h2{
  font-size:clamp(22px,2.6vw,32px);
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--t-dark);
  line-height:1.35;
}
.cta-inner p{
  margin-top:16px;
  font-size:15px;
  color:var(--t-dark2);
  line-height:1.85;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;
  padding:0 28px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--r-btn);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn svg{width:16px;height:16px;transition:transform .2s var(--ease);}
.btn:hover svg{transform:translateX(4px);}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-h);}
.btn-primary:active{background:var(--accent-p);}
.btn-ghost{
  border:1px solid rgba(255,255,255,.22);
  color:var(--t-dark);
  background:transparent;
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);}
.cta-band .btn{margin-top:32px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  border-top:1px solid rgba(255,255,255,.08);
  padding:72px 0 28px;
}
.foot-brand .logo{margin-bottom:16px;}
.foot-brand p{font-size:14px;color:var(--t-dark2);max-width:420px;line-height:1.85;}
.foot-h{
  font-size:13px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--t-dark);
  margin-bottom:16px;
}
.foot-links li{margin-bottom:10px;}
.foot-links a{font-size:14px;color:var(--t-dark2);}
.foot-links a:hover{color:var(--accent);}
.foot-info li{font-size:14px;color:var(--t-dark2);margin-bottom:10px;line-height:1.7;}
.foot-info b{color:var(--t-dark);font-weight:600;}
.foot-bottom{
  margin-top:56px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;
  font-size:13px;color:var(--t3);
}

/* ============ 动效 ============ */
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .feed-row:hover .feed-thumb img{transform:none;}
  html{scroll-behavior:auto;}
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  :root{--pad:24px;--gap-l:72px;}
  .brand-search input{width:120px;}
  .brand-region{display:none;}
  .metric-grid{grid-template-columns:repeat(2,1fr);gap:32px 0;}
  .metric{padding:0 24px;}
  .metric:nth-child(3){border-left:0;padding-left:0;}
  .feed-row{grid-template-columns:180px 1fr;gap:22px;}
}
@media (max-width:768px){
  :root{--pad:20px;--gap-l:56px;}
  body{font-size:16px;line-height:1.8;}
  .brandbar{height:56px;}
  .brand-side .brand-search,
  .brand-side .brand-more{display:none;}
  .nav-toggle{display:flex;}
  .chan-track{gap:22px;}
  .chan{font-size:14px;padding:13px 0 11px;}
  .cat-hero .wrap{padding-top:96px;padding-bottom:40px;}
  .cat-hero h1{font-size:clamp(32px,8vw,44px);}
  .section-head--row{flex-direction:column;align-items:flex-start;}
  .feed-row{grid-template-columns:1fr;gap:16px;padding:24px 0;}
  .feed-thumb{aspect-ratio:16/9;}
  .dim-item{grid-template-columns:52px 1fr;gap:16px;padding:22px 0;}
  .dim-num{font-size:22px;}
  .cta-band{padding:64px 0;}
  .site-footer{padding:56px 0 24px;}
  .foot-brand{margin-bottom:36px;}
  .foot-bottom{margin-top:36px;flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  .metric-grid{grid-template-columns:1fr;gap:26px;}
  .metric{padding:0;border-left:0;border-top:1px solid rgba(255,255,255,.10);padding-top:20px;}
  .metric:first-child{border-top:0;padding-top:0;}
  .feed-body h3{font-size:17px;}
  .faq-item summary{font-size:16px;padding:18px 0;}
  .btn{width:100%;}
}

/* roulang page: category4 */
:root{
  --ink:#0B0E12;
  --panel:#12161C;
  --panel-2:#1B2129;
  --line-dark:rgba(255,255,255,.08);
  --line-dark-2:rgba(255,255,255,.18);
  --accent:#FF5A24;
  --accent-h:#E8451A;
  --accent-p:#C93A13;
  --accent-soft:rgba(255,90,36,.22);
  --mint:#17D6A3;
  --bg:#F6F4F0;
  --card:#FFFFFF;
  --line:rgba(11,14,18,.10);
  --line-strong:rgba(11,14,18,.18);
  --tx:#14181D;
  --tx-2:#5C6672;
  --tx-3:#8B95A5;
  --tx-inv:#F2F4F7;
  --tx-inv-2:#A7B0BD;
  --r-card:12px;
  --r-cover:10px;
  --r-btn:6px;
  --r-badge:4px;
  --r-input:6px;
  --sh-dark:0 18px 40px -18px rgba(0,0,0,.6);
  --sh-light:0 10px 28px -14px rgba(11,14,18,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --wrap:1280px;
  --font-zh:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"DIN Alternate","Barlow Condensed",ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-zh);
  font-size:17px;
  line-height:1.85;
  color:var(--tx);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0;font-family:var(--font-zh);letter-spacing:-.01em;font-weight:700;}
p{margin:0;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 32px;}
.row-gut{margin-left:-12px;margin-right:-12px;}
.row-gut>.cell{padding-left:12px;padding-right:12px;}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
}

/* ---------- 品牌行 ---------- */
.site-header{position:relative;z-index:60;}
.brandbar{
  position:sticky;top:0;z-index:70;
  background:var(--ink);
  border-bottom:1px solid var(--line-dark);
  transition:background .24s var(--ease),backdrop-filter .24s var(--ease);
}
.brandbar.is-stuck{
  background:rgba(11,14,18,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.brand-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  height:72px;
}
.logo{display:inline-flex;align-items:center;gap:10px;}
.logo-mark{width:28px;height:28px;flex:0 0 28px;}
.logo-text{font-size:18px;font-weight:800;letter-spacing:-.02em;color:var(--tx-inv);}
.brand-right{display:flex;align-items:center;gap:20px;}
.brand-note{font-size:13px;letter-spacing:.06em;color:var(--tx-inv-2);}
.brand-link{font-size:14px;color:var(--tx-inv-2);}
.brand-link:hover{color:var(--accent);}
.burger{
  display:none;width:44px;height:44px;border:0;background:transparent;
  padding:0;align-items:center;justify-content:center;
}
.burger span{display:block;width:22px;height:2px;background:var(--tx-inv);position:relative;transition:background .2s var(--ease);}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:22px;height:2px;background:var(--tx-inv);
  transition:transform .22s var(--ease);
}
.burger span::before{top:-7px;}
.burger span::after{top:7px;}

/* ---------- 频道行 ---------- */
.chanbar{background:var(--ink);border-bottom:1px solid var(--line-dark);}
.chan-track{
  display:flex;gap:28px;
  overflow-x:auto;
  scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
}
.chan-track::-webkit-scrollbar{display:none;}
.chan{
  position:relative;flex:0 0 auto;
  padding:14px 0;font-size:15px;color:var(--tx-inv-2);white-space:nowrap;
}
.chan::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;
  background:var(--accent);transition:left .22s var(--ease),right .22s var(--ease);
}
.chan:hover{color:#FFFFFF;}
.chan:hover::after{left:0;right:0;}
.chan.is-active{color:var(--accent);}
.chan.is-active::after{left:0;right:0;}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;
  background:var(--ink);
  padding:24px 20px 40px;
  overflow-y:auto;
  transform:translateY(-100%);
  transition:transform .28s var(--ease);
}
.drawer.is-open{transform:translateY(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line-dark-2);background:transparent;
  border-radius:var(--r-btn);color:var(--tx-inv);font-size:20px;line-height:1;
}
.drawer-close:hover{border-color:var(--accent);color:var(--accent);}
.drawer-label{font-size:13px;letter-spacing:.08em;color:var(--mint);margin-bottom:10px;}
.drawer-chan a{
  display:block;font-size:20px;line-height:2.4;color:var(--tx-inv);
  border-bottom:1px solid var(--line-dark);
}
.drawer-chan a.is-active{color:var(--accent);}
.drawer-foot{margin-top:32px;font-size:14px;color:var(--tx-inv-2);}

/* ---------- Hero ---------- */
.c4-hero{
  background:var(--ink);
  color:var(--tx-inv);
  padding:80px 0 88px;
  border-bottom:1px solid var(--line-dark);
  overflow:hidden;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--mint);
  margin-bottom:24px;
}
.hero-eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mint);}
.hero-title{
  font-size:clamp(44px,7vw,88px);
  font-weight:800;line-height:1.06;letter-spacing:-.02em;
  animation:rise .6s var(--ease) both;
}
.hero-sub{
  margin-top:24px;max-width:620px;
  font-size:17px;line-height:1.85;color:var(--tx-inv-2);
  animation:rise .6s var(--ease) .08s both;
}
.hero-rule{width:120px;height:3px;background:var(--accent);margin:32px 0 28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-figure{
  margin:0;border-radius:var(--r-card);overflow:hidden;
  aspect-ratio:4/5;background:var(--panel);
  border:1px solid var(--line-dark);
  box-shadow:var(--sh-dark);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure figcaption{
  position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden;
}
@keyframes rise{from{opacity:0;transform:translateY(16px);}to{opacity:1;transform:none;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 28px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  transition:background-color .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn .arw{transition:transform .22s var(--ease);}
.btn:hover .arw{transform:translateX(4px);}
.btn-primary{background:var(--accent);color:#FFFFFF;}
.btn-primary:hover{background:var(--accent-h);}
.btn-primary:active{background:var(--accent-p);}
.btn-ghost{border-color:rgba(255,255,255,.28);color:var(--tx-inv);background:transparent;}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);}
.btn-outline{border-color:var(--line-strong);color:var(--tx);background:transparent;}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);}

/* ---------- 阶段时间轴 ---------- */
.phase{background:var(--ink);padding:36px 0 48px;}
.phase-track{
  display:flex;
  overflow-x:auto;
  scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
}
.phase-track::-webkit-scrollbar{display:none;}
.phase-node{
  position:relative;flex:0 0 auto;
  min-width:196px;padding:0 32px 0 20px;
}
.phase-node::before{
  content:"";position:absolute;left:0;top:7px;
  width:12px;height:12px;border-radius:50%;
  border:2px solid rgba(255,255,255,.28);
  background:transparent;
}
.phase-node::after{
  content:"";position:absolute;left:18px;right:8px;top:12px;height:1px;
  background:rgba(255,255,255,.12);
}
.phase-node:last-child::after{display:none;}
.phase-node.is-current::before{background:var(--accent);border-color:var(--accent);}
.phase-time{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:13px;letter-spacing:.06em;color:var(--tx-inv-2);
}
.phase-name{display:block;margin-top:6px;font-size:15px;font-weight:600;color:var(--tx-inv);}
.phase-desc{display:block;margin-top:6px;font-size:13px;line-height:1.7;color:var(--tx-3);max-width:180px;}
.phase-node.is-current .phase-name{color:var(--accent);}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:44px;
}
.sec-title{font-size:clamp(24px,2.8vw,38px);font-weight:700;line-height:1.2;}
.sec-line{width:48px;height:3px;background:var(--accent);margin-top:14px;}
.sec-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--tx-2);white-space:nowrap;}
.sec-link:hover{color:var(--accent);}

/* ---------- 卡片 ---------- */
.card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-light);
  border-color:var(--line-strong);
}
.card-media{
  position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--panel);
}
.card-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .3s var(--ease);
}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:22px 22px 24px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 9px;border-radius:var(--r-badge);
  font-size:12px;letter-spacing:.06em;
  background:rgba(11,14,18,.05);color:var(--tx-2);
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mint);}
.card-title{
  margin-top:12px;font-size:19px;font-weight:600;line-height:1.45;color:var(--tx);
  transition:color .22s var(--ease);
}
.card:hover .card-title{color:var(--accent);}
.card-text{margin-top:10px;font-size:15px;line-height:1.8;color:var(--tx-2);}
.card-meta{
  margin-top:14px;display:flex;flex-wrap:wrap;gap:10px;
  font-size:13px;color:var(--tx-3);
}
.card-meta span{font-variant-numeric:tabular-nums;}

/* 错落双列 */
.stagger .card+.card{margin-top:28px;}
@media (min-width:1025px){
  .stagger .col-b{margin-top:72px;}
}

/* ---------- 规则速查 ---------- */
.rules-band{
  background:#FFFFFF;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.rule{
  display:flex;gap:18px;
  padding:24px 0;
  border-bottom:1px solid var(--line);
  transition:border-color .22s var(--ease);
}
.rule:hover{border-color:var(--line-strong);}
.rule-num{
  flex:0 0 52px;
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:28px;font-weight:800;line-height:1.2;color:var(--accent);
}
.rule-title{font-size:17px;font-weight:600;line-height:1.45;}
.rule:hover .rule-title{color:var(--accent);}
.rule-text{margin-top:6px;font-size:15px;line-height:1.8;color:var(--tx-2);}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item>summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:17px;font-weight:600;line-height:1.5;
  cursor:pointer;list-style:none;
}
.faq-item>summary::-webkit-details-marker{display:none;}
.faq-item>summary::after{
  content:"+";flex:0 0 auto;
  font-family:var(--font-num);
  font-size:22px;line-height:1;color:var(--mint);
  transition:transform .22s var(--ease);
}
.faq-item[open]>summary::after{transform:rotate(45deg);}
.faq-item>summary:hover{color:var(--accent);}
.faq-a{
  padding:18px 20px 24px;
  border-top:1px solid var(--line);
  background:rgba(11,14,18,.02);
  font-size:15px;line-height:1.8;color:var(--tx-2);
}

/* ---------- 咨询区 ---------- */
.ask-band{
  background:#FFFFFF;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.ask-intro p{margin-top:18px;font-size:16px;line-height:1.85;color:var(--tx-2);}
.ask-points{margin-top:26px;}
.ask-points li{
  position:relative;
  padding-left:18px;margin-bottom:14px;
  font-size:15px;line-height:1.8;color:var(--tx-2);
}
.ask-points li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;background:var(--accent);border-radius:2px;
}
.ask-points b{color:var(--tx);font-weight:600;}
.ask-form{border-top:1px solid var(--line);padding-top:28px;}
.field{margin-bottom:20px;}
.field label{
  display:block;margin-bottom:8px;
  font-size:13px;letter-spacing:.06em;color:var(--tx-2);
}
.field input,.field select,.field textarea{
  width:100%;
  border:1px solid rgba(11,14,18,.16);
  border-radius:var(--r-input);
  background:#FFFFFF;
  color:var(--tx);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input,.field select{height:48px;padding:0 14px;}
.field textarea{min-height:124px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--tx-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 2px var(--accent-soft);
}
.select-wrap{position:relative;}
.select-wrap::after{
  content:"";position:absolute;right:16px;top:50%;
  width:8px;height:8px;
  border-right:1.6px solid var(--tx-2);
  border-bottom:1.6px solid var(--tx-2);
  transform:translateY(-70%) rotate(45deg);
  pointer-events:none;
}
.select-wrap select{
  appearance:none;-webkit-appearance:none;-moz-appearance:none;
  padding-right:38px;
}
.form-foot{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;margin-top:8px;
}
.form-note{font-size:13px;line-height:1.7;color:var(--tx-3);max-width:400px;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:var(--ink);
  color:var(--tx-inv);
  padding:80px 0;
  text-align:center;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.03) 0 1px,transparent 1px 16px);
  pointer-events:none;
}
.cta-inner{position:relative;max-width:640px;margin:0 auto;}
.cta-inner h2{font-size:clamp(24px,2.8vw,38px);font-weight:700;line-height:1.3;}
.cta-inner p{margin-top:16px;font-size:16px;color:var(--tx-inv-2);}
.cta-inner .btn{margin-top:28px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:var(--tx-inv-2);
  padding:64px 0 28px;
  border-top:1px solid var(--line-dark);
}
.foot-brand p{margin-top:14px;max-width:380px;font-size:14px;line-height:1.8;color:var(--tx-inv-2);}
.foot-h{
  font-size:14px;font-weight:600;letter-spacing:.06em;
  color:var(--tx-inv);margin-bottom:16px;
}
.foot-links li,.foot-info li{margin-bottom:10px;font-size:14px;line-height:1.75;}
.foot-links a:hover{color:var(--accent);}
.foot-info b{color:var(--tx-inv);font-weight:600;}
.foot-bottom{
  margin-top:48px;padding-top:20px;
  border-top:1px solid var(--line-dark);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--tx-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .wrap{padding:0 24px;}
  .section{padding:72px 0;}
  .c4-hero{padding:64px 0 72px;}
  .hero-figure{margin-top:40px;aspect-ratio:16/10;}
  .stagger .col-b{margin-top:0;}
  .stagger .card+.card{margin-top:24px;}
}
@media (max-width:768px){
  body{font-size:16px;line-height:1.8;}
  .section{padding:56px 0;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px;}
  .brand-note{display:none;}
  .cta-band{padding:64px 0;}
}
@media (max-width:640px){
  .wrap{padding:0 20px;}
  .brand-inner{height:56px;}
  .brand-link{display:none;}
  .burger{display:inline-flex;}
  .chan-track{gap:20px;}
  .chan{padding:12px 0;}
  .c4-hero{padding:48px 0 56px;}
  .hero-sub{font-size:16px;}
  .hero-rule{margin:24px 0 22px;}
  .hero-actions{gap:12px;}
  .btn{width:100%;justify-content:center;padding:0 20px;}
  .hero-actions .btn{width:100%;}
  .phase{padding:28px 0 36px;}
  .phase-node{min-width:168px;padding-right:24px;}
  .phase-desc{max-width:150px;}
  .card-body{padding:18px 18px 20px;}
  .rule{gap:14px;}
  .rule-num{flex:0 0 42px;font-size:24px;}
  .faq-item>summary{font-size:16px;}
  .form-foot{flex-direction:column;align-items:stretch;}
  .form-foot .btn{width:100%;}
  .foot-bottom{margin-top:36px;}
}
@media (max-width:480px){
  .hero-figure{aspect-ratio:4/3;}
  .phase-node{min-width:150px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .card:hover{transform:none;}
  .card:hover .card-media img{transform:none;}
  .btn:hover .arw{transform:none;}
}