/* roulang page: index */
:root{
  --brand:#FF7A2F;
  --brand-deep:#E76518;
  --secondary:#17C3B2;
  --ink:#0E0D12;
  --ink-2:#16151C;
  --ink-3:#22212B;
  --paper:#F6F4F1;
  --paper-2:#EFEBE5;
  --card:#FFFFFF;
  --text:#1B1A20;
  --text-2:#5C5A66;
  --text-3:#8A8794;
  --line:#E5E1DB;
  --line-dark:#2A2833;
  --pill:999px;
  --r-card:16px;
  --r-img:12px;
  --r-hero:24px;
  --elev-1:0 1px 2px rgba(20,18,24,.04);
  --elev-2:0 12px 32px -12px rgba(20,18,24,.18);
  --elev-3:0 20px 48px -18px rgba(20,18,24,.30);
  --ease:cubic-bezier(.2,.7,.2,1);
  --sp:8px;
  --gap:24px;
  --sec-y:clamp(56px,8vw,120px);
  --maxw:1280px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Inter","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6{
  margin:0 0 .5em;
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.18;
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Inter",sans-serif;
}
p{margin:0 0 1em;}
a{color:var(--text);text-decoration:none;transition:color 200ms var(--ease);}
a:hover,a:focus{color:var(--brand);}
img{max-width:100%;height:auto;display:block;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,textarea,select{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(255,122,47,.18);border-radius:6px;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding-left:20px;padding-right:20px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";font-family:"Inter","Helvetica Neue",Arial,sans-serif;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(14,13,18,.92);
  border-bottom:1px solid transparent;
  transition:background 200ms var(--ease),border-color 200ms var(--ease),backdrop-filter 200ms var(--ease);
}
.site-header.is-stuck{
  background:rgba(14,13,18,.72);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom-color:var(--line-dark);
}
.nav-wrap{
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 20px;
  height:72px;
  display:grid;
  grid-template-columns:auto minmax(220px,1fr) auto;
  align-items:center;
  gap:24px;
  transition:height 200ms var(--ease);
}
.site-header.is-stuck .nav-wrap{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;letter-spacing:-.02em;font-size:20px;white-space:nowrap;}
.brand:hover,.brand:focus{color:#fff;}
.brand-mark{
  width:22px;height:22px;border-radius:6px;
  border:2px solid var(--brand);
  position:relative;flex:0 0 auto;
  box-shadow:0 0 0 4px rgba(255,122,47,.10);
}
.brand-mark::after{
  content:"";position:absolute;inset:5px;border-radius:50%;
  background:var(--brand);
}
.brand-text{color:#fff;}
.brand-text em{font-style:normal;color:var(--brand);}
.nav-search{
  position:relative;
  width:100%;
  max-width:600px;
  margin:0 auto;
  display:flex;align-items:center;
}
.nav-search i{
  position:absolute;left:20px;top:50%;transform:translateY(-50%);
  color:#9C99A6;font-size:15px;pointer-events:none;transition:color 200ms var(--ease);
}
.nav-search input[type="search"]{
  width:100%;height:46px;
  padding:0 22px 0 50px;
  border-radius:var(--pill);
  border:1px solid var(--line-dark);
  background:rgba(255,255,255,.06);
  color:#fff;
  font-size:15px;
  margin:0;
  box-shadow:none;
  transition:border-color 200ms var(--ease),background 200ms var(--ease),box-shadow 200ms var(--ease);
}
.nav-search input[type="search"]::placeholder{color:#8A8794;}
.nav-search input[type="search"]:hover{border-color:#413E4C;background:rgba(255,255,255,.09);}
.nav-search input[type="search"]:focus{
  outline:none;
  border-color:var(--brand);
  background:rgba(255,255,255,.10);
  box-shadow:0 0 0 4px rgba(255,122,47,.20);
}
.nav-search:focus-within i{color:var(--brand);}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  color:#C9C6D2;
  border-radius:8px;
  white-space:nowrap;
  transition:color 200ms var(--ease),background 200ms var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left center;
  transition:transform 200ms var(--ease);
}
.nav-links a:hover,.nav-links a:focus{color:#fff;background:rgba(255,255,255,.06);}
.nav-links a:hover::after,.nav-links a:focus::after{transform:scaleX(1);}
.nav-links a.active{color:var(--brand);}
.nav-links a.active::after{transform:scaleX(1);}
.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line-dark);
  color:#fff;font-size:17px;
  align-items:center;justify-content:center;
  transition:border-color 200ms var(--ease),color 200ms var(--ease);
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line-dark);
  background:rgba(14,13,18,.96);
  padding:12px 20px 20px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:block;
  padding:12px 4px;
  color:#C9C6D2;
  font-size:16px;
  border-bottom:1px solid rgba(255,255,255,.07);
}
.mobile-drawer a:last-child{border-bottom:0;}
.mobile-drawer a.active{color:var(--brand);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--pill);
  font-size:15px;font-weight:600;
  padding:0 22px;height:44px;
  white-space:nowrap;
  transition:background 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease),transform 200ms var(--ease),box-shadow 200ms var(--ease);
}
.btn-lg{height:52px;padding:0 30px;font-size:16px;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px -10px rgba(255,122,47,.75);}
.btn-primary:hover,.btn-primary:focus{background:#FF8B47;color:#fff;box-shadow:0 12px 26px -10px rgba(255,122,47,.85);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.45);}
.btn-ghost:hover,.btn-ghost:focus{border-color:#fff;background:rgba(255,255,255,.08);color:#fff;}
.btn-ghost:active{transform:translateY(1px);}
.btn-outline{background:transparent;color:var(--text);border:1px solid var(--line);}
.btn-outline:hover,.btn-outline:focus{border-color:var(--brand);color:var(--brand);background:rgba(255,122,47,.06);}
.btn-on-dark{background:#fff;color:var(--ink);}
.btn-on-dark:hover,.btn-on-dark:focus{background:var(--brand);color:#fff;}
.btn:disabled,.btn.is-disabled{opacity:.4;pointer-events:none;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);
  border-bottom:1px solid transparent;
  padding-bottom:2px;
}
.text-link:hover,.text-link:focus{color:var(--brand-deep);border-bottom-color:var(--brand-deep);}
.text-link i{transition:transform 200ms var(--ease);}
.text-link:hover i{transform:translateX(4px);}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:var(--pill);
  font-size:12px;font-weight:600;letter-spacing:.01em;
  background:rgba(23,195,178,.12);
  color:#0E8E81;
  border:1px solid rgba(23,195,178,.24);
}
.tag-amber{background:rgba(255,122,47,.12);color:var(--brand-deep);border-color:rgba(255,122,47,.26);}
.tag-plain{background:transparent;color:var(--text-2);border-color:var(--line);}
.tag-dark{background:rgba(255,255,255,.08);color:#DCDAE2;border-color:rgba(255,255,255,.16);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:clamp(520px,72vh,760px);
  display:flex;align-items:center;
  overflow:hidden;
  border-radius:0 0 var(--r-hero) var(--r-hero);
  background:var(--ink);
}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center right;
  transform:scale(1.02);
}
.hero-veil{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(14,13,18,.97) 0%,rgba(14,13,18,.90) 32%,rgba(14,13,18,.52) 62%,rgba(14,13,18,.10) 100%),
    linear-gradient(180deg,rgba(14,13,18,.78) 0%,rgba(14,13,18,.10) 34%,rgba(246,244,241,0) 84%,#F6F4F1 100%);
}
.hero-inner{position:relative;z-index:2;width:100%;padding-top:clamp(48px,7vw,96px);padding-bottom:clamp(64px,9vw,120px);}
.hero-text{max-width:640px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;font-weight:600;
  color:#C9C6D2;text-transform:uppercase;
  margin:0 0 18px;
}
.dot{width:7px;height:7px;border-radius:50%;background:var(--secondary);box-shadow:0 0 0 4px rgba(23,195,178,.18);}
.hero-title{
  font-size:clamp(34px,5.2vw,64px);
  line-height:1.08;
  letter-spacing:-.03em;
  color:#fff;
  margin:0 0 20px;
  text-wrap:balance;
}
.hero-sub{
  font-size:clamp(16px,1.5vw,19px);
  line-height:1.7;
  color:#D6D3DC;
  max-width:560px;
  margin:0 0 32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;}
.hero-chips li{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;
  border-radius:var(--pill);
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.05);
  color:#E4E1E9;
  font-size:13.5px;
}
.hero-chips b{color:var(--brand);font-weight:700;font-family:"Inter",sans-serif;}
.hero-thumbs{
  position:absolute;
  right:clamp(24px,4vw,64px);
  bottom:clamp(40px,6vw,88px);
  display:flex;gap:16px;
  z-index:3;
}
.hero-thumbs figure{
  width:128px;height:176px;
  border-radius:14px;overflow:hidden;
  border:1px solid rgba(255,255,255,.22);
  box-shadow:0 24px 48px -20px rgba(0,0,0,.85);
  margin:0;
  transform:translateY(18px);
  transition:transform 240ms var(--ease);
}
.hero-thumbs figure:nth-child(2){transform:translateY(0);}
.hero-thumbs figure:nth-child(3){transform:translateY(30px);}
.hero-thumbs figure:hover{transform:translateY(-6px);}
.hero-thumbs img{width:100%;height:100%;object-fit:cover;}

/* ---------- 板块通用 ---------- */
.section{padding:var(--sec-y) 0;}
.section-dark{background:var(--ink);color:#E6E3EC;}
.section-dark h2,.section-dark h3{color:#fff;}
.section-paper{background:var(--paper);}
.section-white{background:#fff;}
.section-soft{background:var(--paper-2);}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:clamp(28px,4vw,48px);
}
.sec-head-text{max-width:720px;}
.sec-kicker{
  display:inline-block;
  font-size:13px;letter-spacing:.16em;font-weight:600;
  color:var(--brand);text-transform:uppercase;
  margin-bottom:10px;
}
.sec-title{
  font-size:clamp(24px,2.6vw,36px);
  letter-spacing:-.025em;
  margin:0 0 10px;
  font-family:"Noto Serif SC","Songti SC","PingFang SC",serif;
  font-weight:600;
}
.sec-desc{color:var(--text-2);font-size:15.5px;margin:0;max-width:640px;}
.section-dark .sec-desc{color:#A9A6B4;}
.sec-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}

/* ---------- 横滑片库 ---------- */
.rail-wrap{position:relative;}
.rail{
  display:flex;gap:20px;
  overflow-x:auto;overflow-y:hidden;
  scroll-snap-type:x mandatory;
  padding:6px 4px 22px;
  margin:0 -4px;
  scrollbar-width:thin;
  scrollbar-color:#CFCAC3 transparent;
}
.rail::-webkit-scrollbar{height:6px;}
.rail::-webkit-scrollbar-track{background:transparent;}
.rail::-webkit-scrollbar-thumb{background:#D8D3CC;border-radius:99px;}
.rail::-webkit-scrollbar-thumb:hover{background:#C3BDB5;}
.poster{
  flex:0 0 auto;
  width:260px;
  scroll-snap-align:start;
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--ink-2);
  position:relative;
  box-shadow:var(--elev-1);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease);
}
.poster:hover{transform:translateY(-4px);box-shadow:var(--elev-2);}
.poster-img{position:relative;aspect-ratio:3/4;overflow:hidden;background:#22212B;}
.poster-img img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease);}
.poster:hover .poster-img img{transform:scale(1.04);}
.poster-shade{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,13,18,0) 38%,rgba(14,13,18,.72) 72%,rgba(14,13,18,.94) 100%);
}
.poster-info{
  position:absolute;left:0;right:0;bottom:0;
  padding:16px;
}
.poster-info h3{font-size:17px;color:#fff;margin:0 0 8px;line-height:1.35;}
.poster-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:12.5px;color:#C7C3CE;}
.poster-meta .score{color:var(--brand);font-weight:700;}
.rail-nav{display:flex;gap:10px;}
.rail-btn{
  width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);
  background:#fff;color:var(--text);
  display:inline-flex;align-items:center;justify-content:center;
  opacity:.55;
  transition:opacity 200ms var(--ease),border-color 200ms var(--ease),color 200ms var(--ease),background 200ms var(--ease);
}
.rail-btn:hover,.rail-btn:focus{opacity:1;border-color:var(--brand);color:var(--brand);background:#fff;}
.section-dark .rail-btn{background:transparent;color:#fff;border-color:var(--line-dark);}
.section-dark .rail-btn:hover,.section-dark .rail-btn:focus{border-color:var(--brand);color:var(--brand);}

/* ---------- 热播非对称 ---------- */
.feature-grid{
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:var(--gap);
  align-items:stretch;
}
.feature-main{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--ink-2);
  border:1px solid var(--line-dark);
  min-height:420px;
  display:flex;align-items:flex-end;
  transition:transform 220ms var(--ease);
}
.feature-main:hover{transform:translateY(-4px);}
.feature-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease);}
.feature-main:hover img{transform:scale(1.04);}
.feature-main .shade{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,13,18,.20) 0%,rgba(14,13,18,.72) 58%,rgba(14,13,18,.96) 100%);
}
.feature-main-body{position:relative;z-index:2;padding:clamp(24px,3vw,40px);max-width:560px;}
.feature-no{
  font-family:"Inter",sans-serif;
  font-size:clamp(48px,6vw,84px);
  font-weight:800;line-height:.9;letter-spacing:-.05em;
  color:transparent;-webkit-text-stroke:1.5px rgba(255,122,47,.85);
  display:block;margin-bottom:14px;
}
.feature-main-body h3{font-size:clamp(21px,2.2vw,28px);color:#fff;margin:0 0 12px;}
.feature-main-body p{color:#B7B3C0;font-size:15px;margin:0 0 18px;max-width:480px;}
.feature-side{display:flex;flex-direction:column;gap:var(--gap);}
.media-card{
  display:grid;grid-template-columns:150px 1fr;
  gap:18px;align-items:center;
  padding:16px;
  border-radius:var(--r-card);
  background:var(--ink-2);
  border:1px solid var(--line-dark);
  flex:1;
  transition:transform 220ms var(--ease),border-color 200ms var(--ease);
}
.media-card:hover{transform:translateY(-4px);border-color:rgba(255,122,47,.5);}
.media-thumb{width:150px;height:100px;border-radius:var(--r-img);overflow:hidden;background:#22212B;flex:0 0 auto;}
.media-thumb img{width:100%;height:100%;object-fit:cover;}
.media-card h3{font-size:18px;color:#fff;margin:0 0 8px;}
.media-card p{font-size:13.5px;line-height:1.7;color:#A9A6B4;margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.media-meta{display:flex;gap:10px;flex-wrap:wrap;align-items:center;font-size:12.5px;color:#8A8794;}

/* ---------- 片单分区 ---------- */
.block-list{display:flex;flex-direction:column;}
.block-row{
  padding:clamp(28px,4vw,48px) 0;
  border-top:1px solid var(--line);
}
.block-row:first-child{border-top:0;padding-top:0;}
.block-row:last-child{padding-bottom:0;}
.block-row-head{
  display:flex;align-items:flex-start;justify-content:space-between;gap:24px;margin-bottom:26px;
}
.block-row-head h3{font-size:clamp(20px,2vw,26px);margin:0 0 8px;}
.block-row-head p{color:var(--text-2);font-size:15px;margin:0;max-width:560px;}
.mini-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;
}
.mini-card{
  display:block;
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--card);
  border:1px solid var(--line);
  box-shadow:var(--elev-1);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 200ms var(--ease);
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--elev-2);border-color:#DCD6CE;}
.mini-cover{aspect-ratio:3/4;overflow:hidden;background:#E9E5DF;}
.mini-cover img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease);}
.mini-card:hover .mini-cover img{transform:scale(1.04);}
.mini-body{padding:14px 16px 18px;}
.mini-body h4{font-size:16px;margin:0 0 8px;line-height:1.4;}
.mini-body .mini-meta{display:flex;gap:8px;flex-wrap:wrap;font-size:12.5px;color:var(--text-3);align-items:center;}

/* ---------- 最新信息列表 ---------- */
.news-list{border-top:1px solid var(--line);}
.news-item{
  display:grid;
  grid-template-columns:200px 1fr auto;
  gap:24px;
  align-items:center;
  padding:24px 0;
  border-bottom:1px solid var(--line);
  transition:background 200ms var(--ease);
}
.news-item:hover{background:rgba(255,122,47,.03);}
.news-thumb{width:200px;height:120px;border-radius:var(--r-img);overflow:hidden;background:#E9E5DF;flex:0 0 auto;}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease);}
.news-item:hover .news-thumb img{transform:scale(1.05);}
.news-body h3{font-size:19px;margin:0 0 8px;line-height:1.4;}
.news-body p{
  font-size:14.5px;line-height:1.75;color:var(--text-2);margin:0 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-3);flex-wrap:wrap;}
.news-meta .cat{color:var(--brand);font-weight:600;}
.news-arrow{
  width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--text-2);
  transition:border-color 200ms var(--ease),color 200ms var(--ease),transform 200ms var(--ease),background 200ms var(--ease);
}
.news-item:hover .news-arrow{border-color:var(--brand);color:#fff;background:var(--brand);transform:translateX(4px);}
.empty-state{
  border:1px dashed var(--line);
  border-radius:var(--r-card);
  background:#fff;
  padding:clamp(32px,5vw,56px);
  text-align:center;
}
.empty-state i{font-size:28px;color:var(--text-3);margin-bottom:14px;display:block;}
.empty-state p{color:var(--text-2);margin:0 0 18px;}

/* ---------- FAQ ---------- */
.faq-layout{
  display:grid;
  grid-template-columns:1.6fr 1fr;
  gap:clamp(24px,4vw,56px);
  align-items:start;
}
.accordion{border:0;background:transparent;margin:0;}
.accordion .accordion-item{
  border:0;
  border-top:1px solid var(--line);
  background:transparent;
}
.accordion .accordion-item:last-child{border-bottom:1px solid var(--line);}
.accordion .accordion-title{
  position:relative;
  padding:22px 56px 22px 0;
  font-size:17px;font-weight:700;color:var(--text);
  border:0;background:transparent;
  transition:color 200ms var(--ease);
}
.accordion .accordion-title:hover,.accordion .accordion-title:focus{color:var(--brand);background:transparent;}
.accordion .accordion-title::before{
  content:"\f067";
  font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:8px;top:50%;transform:translateY(-50%);
  font-size:14px;color:var(--brand);
  transition:transform 220ms var(--ease);
}
.accordion .accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(45deg);}
.accordion .accordion-content{
  padding:0 56px 24px 0;
  border:0;background:transparent;
  color:var(--text-2);font-size:15px;line-height:1.85;
}
.faq-card{
  background:var(--ink);
  color:#E6E3EC;
  border-radius:var(--r-card);
  padding:clamp(26px,3vw,36px);
  border:1px solid var(--line-dark);
  position:relative;
  overflow:hidden;
}
.faq-card::after{
  content:"";position:absolute;right:-60px;top:-60px;width:180px;height:180px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,47,.35),rgba(255,122,47,0) 70%);
}
.faq-card h3{color:#fff;font-size:22px;margin:0 0 12px;position:relative;}
.faq-card p{color:#A9A6B4;font-size:14.5px;margin:0 0 22px;position:relative;}
.faq-card ul{margin:0 0 26px;position:relative;}
.faq-card li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#C9C6D2;padding:7px 0;}
.faq-card li i{color:var(--secondary);margin-top:5px;font-size:11px;}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--ink);
  color:#fff;
  border-radius:var(--r-hero);
  padding:clamp(36px,5vw,64px);
  position:relative;
  overflow:hidden;
  border:1px solid var(--line-dark);
}
.cta-band .cta-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.16;
}
.cta-band .inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr 1fr;gap:36px;align-items:center;}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,38px);margin:0 0 12px;}
.cta-band p{color:#B7B3C0;margin:0;}
.subscribe-form{display:flex;gap:12px;flex-wrap:wrap;}
.subscribe-form input{
  flex:1 1 220px;height:50px;
  border-radius:var(--pill);
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.08);
  color:#fff;padding:0 22px;margin:0;
  transition:border-color 200ms var(--ease),background 200ms var(--ease),box-shadow 200ms var(--ease);
}
.subscribe-form input::placeholder{color:#8A8794;}
.subscribe-form input:focus{outline:none;border-color:var(--brand);background:rgba(255,255,255,.12);box-shadow:0 0 0 4px rgba(255,122,47,.18);}
.form-note{font-size:12.5px;color:#8A8794;margin:12px 0 0;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#A9A6B4;padding:clamp(48px,7vw,84px) 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:clamp(24px,4vw,48px);
  padding-bottom:48px;
}
.footer-grid h4{color:#fff;font-size:15px;margin:0 0 18px;letter-spacing:.02em;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .brand-text{font-size:19px;font-weight:800;color:#fff;}
.footer-brand .brand-mark{width:20px;height:20px;}
.footer-about p{font-size:14px;line-height:1.85;color:#8F8C9A;margin:0 0 18px;max-width:320px;}
.footer-links li{margin-bottom:11px;}
.footer-links a{font-size:14px;color:#A9A6B4;}
.footer-links a:hover,.footer-links a:focus{color:var(--brand);}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:12px;color:#A9A6B4;}
.footer-contact i{color:var(--brand);margin-top:4px;}
.footer-bottom{
  border-top:1px solid var(--line-dark);
  padding:22px 0 28px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7C7987;
}
.footer-bottom a{color:#A9A6B4;}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:70;
  width:46px;height:46px;border-radius:50%;
  background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 12px 26px -10px rgba(255,122,47,.8);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity 220ms var(--ease),transform 220ms var(--ease),visibility 220ms var(--ease),background 200ms var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand-deep);color:#fff;}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .nav-wrap{grid-template-columns:auto 1fr auto;gap:16px;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero-thumbs{display:none;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-main{min-height:360px;}
  .mini-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-layout{grid-template-columns:1fr;}
  .cta-band .inner{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .news-item{grid-template-columns:180px 1fr auto;gap:18px;}
  .news-thumb{width:180px;height:110px;}
}
@media screen and (max-width:768px){
  .nav-wrap{height:66px;grid-template-columns:auto 1fr auto;gap:12px;}
  .brand{font-size:17px;}
  .nav-search{max-width:none;}
  .nav-search input[type="search"]{height:42px;font-size:14px;padding-left:44px;}
  .nav-search i{left:16px;}
  .hero{border-radius:0 0 18px 18px;align-items:flex-end;}
  .hero-inner{padding-top:88px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px;}
  .block-row-head{flex-direction:column;gap:12px;}
  .media-card{grid-template-columns:120px 1fr;gap:14px;}
  .media-thumb{width:120px;height:84px;}
  .poster{width:212px;}
  .news-item{grid-template-columns:1fr;gap:14px;padding:20px 0;}
  .news-thumb{width:100%;height:180px;}
  .news-arrow{display:none;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:520px){
  .container{padding-left:18px;padding-right:18px;}
  .hero-chips li{font-size:12.5px;padding:8px 13px;}
  .mini-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
  .mini-body{padding:12px 13px 15px;}
  .mini-body h4{font-size:14.5px;}
  .poster{width:180px;}
  .block-row{padding:26px 0;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --brand:#FF7A2F;
  --brand-soft:rgba(255,122,47,.12);
  --secondary:#17C3B2;
  --ink:#0E0D12;
  --ink-2:#16151C;
  --ink-3:#22212B;
  --paper:#F6F4F1;
  --card:#FFFFFF;
  --text:#1B1A20;
  --text-2:#5C5A66;
  --line:#E5E1DB;
  --line-dark:#2A2833;
  --r-btn:999px;
  --r-card:16px;
  --r-img:12px;
  --r-hero:24px;
  --elev-1:0 1px 2px rgba(20,18,24,.04);
  --elev-2:0 12px 32px -12px rgba(20,18,24,.18);
  --ease:cubic-bezier(.2,.7,.2,1);
  --shell:1280px;
  --pad-x:clamp(20px,4vw,48px);
  --sec-y:clamp(56px,8vw,110px);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease);}
a:hover{color:var(--brand-soft-strong,#f2600f);}
button,input{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:inherit;font-weight:800;letter-spacing:-.02em;line-height:1.2;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(255,122,47,.22);border-radius:6px;}
.container{width:100%;max-width:var(--shell);margin:0 auto;padding-left:var(--pad-x);padding-right:var(--pad-x);}
.section{padding-top:var(--sec-y);padding-bottom:var(--sec-y);}
.section--tight{padding-top:clamp(36px,5vw,64px);padding-bottom:clamp(36px,5vw,64px);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:clamp(24px,3vw,40px);}
.section-head h2{font-size:clamp(24px,2.6vw,36px);}
.section-head p{color:var(--text-2);font-size:14.5px;margin-top:8px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--brand);font-weight:700;}
.serif-note{font-family:"Noto Serif SC",serif;font-weight:600;letter-spacing:.02em;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(246,244,241,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:background .25s var(--ease),border-color .25s var(--ease);}
.site-header.is-scrolled{background:rgba(14,13,18,.88);border-bottom-color:var(--line-dark);}
.header-inner{display:flex;align-items:center;gap:clamp(14px,2.4vw,28px);min-height:72px;transition:min-height .25s var(--ease);flex-wrap:wrap;}
.site-header.is-scrolled .header-inner{min-height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{position:relative;width:24px;height:24px;border-radius:8px;background:linear-gradient(135deg,var(--brand),#ffb27a);box-shadow:0 6px 16px -8px rgba(255,122,47,.9);}
.brand-mark::after{content:"";position:absolute;inset:7px;border-radius:50%;background:var(--ink);}
.brand-text{font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.02em;transition:color .25s var(--ease);}
.site-header.is-scrolled .brand-text{color:#fff;}
.nav-search{position:relative;flex:1 1 320px;max-width:600px;margin:0 auto;}
.nav-search i{position:absolute;left:17px;top:50%;transform:translateY(-50%);color:var(--text-2);font-size:14px;pointer-events:none;}
.nav-search input{width:100%;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;padding:0 18px 0 44px;font-size:14.5px;color:var(--text);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.nav-search input::placeholder{color:#9d9aa4;}
.nav-search input:hover{border-color:#c9c3ba;}
.nav-search input:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(255,122,47,.18);outline:none;}
.nav-links{display:flex;align-items:center;gap:clamp(12px,1.6vw,22px);flex:0 0 auto;}
.nav-links a{position:relative;font-size:15px;color:var(--text);padding:6px 0;font-weight:500;}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--brand);transition:width .22s var(--ease);}
.nav-links a:hover{color:var(--brand);}
.nav-links a:hover::after{width:100%;}
.nav-links a.active{color:var(--brand);font-weight:700;}
.nav-links a.active::after{width:100%;}
.site-header.is-scrolled .nav-links a{color:rgba(255,255,255,.82);}
.site-header.is-scrolled .nav-links a:hover,
.site-header.is-scrolled .nav-links a.active{color:var(--brand);}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink);align-items:center;justify-content:center;font-size:16px;cursor:pointer;transition:all .2s var(--ease);}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}
.nav-toggle:active{transform:translateY(1px);}

/* ---------- reading progress ---------- */
.read-progress{position:fixed;top:0;left:0;height:2px;width:0;background:linear-gradient(90deg,var(--brand),#ffb27a);z-index:120;transition:width .08s linear;}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;border-radius:var(--r-btn);font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;transition:all .2s var(--ease);}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 26px -14px rgba(255,122,47,.95);}
.btn-primary:hover{filter:brightness(1.06);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{border-color:var(--line);color:var(--text);background:transparent;}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.btn-ghost:active{transform:translateY(1px);}
.btn-on-dark{background:#fff;color:var(--ink);}
.btn-on-dark:hover{background:#fff;color:var(--brand);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand);position:relative;}
.btn-text::after{content:"";position:absolute;left:0;bottom:-3px;height:1px;width:100%;background:currentColor;opacity:.35;transition:opacity .2s var(--ease);}
.btn-text:hover::after{opacity:1;}
.tag{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-btn);font-size:12.5px;font-weight:600;line-height:1.5;}
.tag-brand{background:var(--brand-soft);color:#c9540d;}
.tag-line{border:1px solid var(--line);color:var(--text-2);background:#fff;}
.tag-dark{border:1px solid var(--line-dark);color:rgba(255,255,255,.78);background:rgba(255,255,255,.04);}
.tag-cyan{background:rgba(23,195,178,.14);color:#0b8579;}

/* ---------- article hero ---------- */
.article-hero{position:relative;background:linear-gradient(180deg,rgba(14,13,18,.94) 0%,rgba(22,21,28,.9) 60%,rgba(22,21,28,.96) 100%),url("/assets/images/backpic/back-2.webp") center/cover no-repeat;color:#fff;padding:clamp(40px,6vw,68px) 0 clamp(48px,7vw,80px);overflow:hidden;}
.article-hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:120px;background:linear-gradient(180deg,rgba(22,21,28,0) 0%,var(--paper) 100%);pointer-events:none;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:22px;}
.crumbs a{color:rgba(255,255,255,.72);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{opacity:.5;}
.crumbs .current{color:#fff;}
.article-hero h1{font-size:clamp(26px,3.4vw,40px);line-height:1.24;max-width:900px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:20px;font-size:13.5px;color:rgba(255,255,255,.7);}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta .dot{width:5px;height:5px;border-radius:50%;background:var(--secondary);}
.hero-rule{width:64px;height:3px;background:var(--brand);border-radius:2px;margin:24px 0 0;}

/* ---------- article body ---------- */
.article-body{padding:clamp(36px,5vw,64px) 0 clamp(56px,8vw,96px);}
.article-layout{display:grid;grid-template-columns:minmax(0,760px) 260px;gap:clamp(32px,4vw,56px);justify-content:center;align-items:start;}
.article-main{min-width:0;}
.cover-frame{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--elev-2);background:#e9e5e0;margin-bottom:clamp(28px,4vw,44px);}
.cover-frame img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.prose{font-size:16.5px;line-height:1.9;color:var(--text);}
.prose p{margin:0 0 1.2em;}
.prose h2{position:relative;font-size:clamp(20px,2.2vw,26px);margin:2em 0 .8em;padding-left:16px;}
.prose h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:2px;background:var(--brand);}
.prose h3{font-size:17.5px;font-weight:700;margin:1.6em 0 .6em;color:var(--ink-3);}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:2px;}
.prose ul li,.prose ol li{position:relative;padding-left:20px;margin-bottom:.55em;color:var(--text);}
.prose ul li::before{content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:2px;background:var(--brand);}
.prose ol{counter-reset:li;}
.prose ol li{counter-increment:li;}
.prose ol li::before{content:counter(li);position:absolute;left:0;top:0;color:var(--brand);font-weight:700;font-size:14px;}
.prose blockquote{margin:1.6em 0;padding:18px 22px;border-left:4px solid var(--brand);background:#fff;border-radius:0 var(--r-img) var(--r-img) 0;color:var(--ink-3);box-shadow:var(--elev-1);}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{border-radius:var(--r-img);margin:1.4em 0 .6em;box-shadow:var(--elev-1);}
.prose figure{margin:1.6em 0;}
.prose figcaption{text-align:center;font-size:13px;color:var(--text-2);margin-top:10px;}
.prose table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:14.5px;background:#fff;border-radius:var(--r-img);overflow:hidden;}
.prose th,.prose td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;}
.prose th{background:#faf8f5;font-weight:700;color:var(--ink-3);}
.prose a{color:#c9540d;border-bottom:1px solid rgba(255,122,47,.4);}
.prose a:hover{color:var(--brand);border-bottom-color:var(--brand);}
.prose hr{border:none;border-top:1px solid var(--line);margin:2.4em 0;}
.prose > *:first-child{margin-top:0;}

/* ---------- toc ---------- */
.toc-aside{position:sticky;top:96px;}
.toc-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px 20px 16px;box-shadow:var(--elev-1);}
.toc-card h4{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-2);margin-bottom:14px;font-weight:700;}
.toc-list li{margin-bottom:10px;}
.toc-list a{display:block;font-size:14px;color:var(--text-2);line-height:1.55;padding-left:12px;border-left:2px solid transparent;}
.toc-list a:hover{color:var(--brand);border-left-color:var(--brand);}
.toc-list a.is-active{color:var(--brand);border-left-color:var(--brand);font-weight:600;}

/* ---------- article footer blocks ---------- */
.article-tail{margin-top:clamp(36px,5vw,56px);padding-top:28px;border-top:1px solid var(--line);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.back-link{margin-top:26px;}
.explore-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;}
.explore-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--elev-1);display:flex;flex-direction:column;height:100%;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);}
.explore-card:hover{transform:translateY(-4px);box-shadow:var(--elev-2);border-color:#d9d3ca;}
.explore-card .thumb{overflow:hidden;background:#e9e5e0;}
.explore-card .thumb img{width:100%;aspect-ratio:3/4;object-fit:cover;transition:transform .3s var(--ease);}
.explore-card:hover .thumb img{transform:scale(1.04);}
.explore-card .body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:8px;flex:1;}
.explore-card h3{font-size:17px;}
.explore-card p{font-size:13.5px;color:var(--text-2);line-height:1.7;}
.explore-card .more{margin-top:auto;font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:clamp(24px,3vw,40px);align-items:start;}
.accordion{border-top:1px solid var(--line);background:transparent;}
.accordion-item{border-bottom:1px solid var(--line);}
.accordion-title{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 4px;font-size:16.5px;font-weight:700;color:var(--ink-3);background:transparent;border:none;transition:color .2s var(--ease);}
.accordion-title:hover{color:var(--brand);}
.accordion-title::before{display:none;}
.accordion-title::after{font-family:"Font Awesome 6 Free";font-weight:900;content:"\2b";font-size:13px;color:var(--brand);transition:transform .24s var(--ease);}
.accordion-item.is-active .accordion-title::after{transform:rotate(45deg);}
.accordion-content{padding:0 4px 22px;color:var(--text-2);font-size:15px;line-height:1.85;background:transparent;border:none;}
.faq-side{background:var(--ink);color:#fff;border-radius:var(--r-card);padding:28px 26px;border:1px solid var(--line-dark);}
.faq-side h3{font-size:20px;margin-bottom:12px;}
.faq-side p{color:rgba(255,255,255,.72);font-size:14.5px;margin-bottom:22px;}

/* ---------- cta band ---------- */
.cta-band{background:var(--ink);color:#fff;padding:clamp(48px,7vw,88px) 0;position:relative;overflow:hidden;}
.cta-band::before{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(255,122,47,.24),transparent 65%);}
.cta-inner{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,460px);gap:clamp(28px,4vw,56px);align-items:center;}
.cta-inner h2{font-size:clamp(24px,3vw,36px);margin-bottom:14px;}
.cta-inner p{color:rgba(255,255,255,.72);font-size:15.5px;max-width:520px;}
.cta-form{display:flex;gap:12px;flex-wrap:wrap;}
.cta-form input{flex:1 1 220px;height:48px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.07);color:#fff;padding:0 20px;font-size:15px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.cta-form input::placeholder{color:rgba(255,255,255,.5);}
.cta-form input:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(255,122,47,.22);outline:none;}
.cta-note{margin-top:14px;font-size:13px;color:rgba(255,255,255,.5);}

/* ---------- empty state ---------- */
.empty-state{background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);padding:clamp(40px,6vw,72px) 28px;text-align:center;}
.empty-state i{font-size:30px;color:var(--brand);}
.empty-state h2{font-size:22px;margin:18px 0 10px;}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:24px;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:clamp(48px,7vw,80px) 0 0;border-top:1px solid var(--line-dark);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:clamp(24px,3vw,48px);padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;}
.footer-about p{font-size:14px;line-height:1.85;max-width:360px;margin-bottom:18px;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.02em;}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:rgba(255,255,255,.7);font-size:14px;}
.footer-links a:hover{color:var(--brand);}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:12px;align-items:flex-start;}
.footer-contact i{color:var(--brand);margin-top:5px;font-size:13px;}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;padding:20px 0;border-top:1px solid var(--line-dark);font-size:13px;color:rgba(255,255,255,.52);}
.footer-bottom a{color:rgba(255,255,255,.72);}
.footer-bottom a:hover{color:var(--brand);}
.hero-chips{display:flex;flex-wrap:wrap;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
.back-top{position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--ink);display:flex;align-items:center;justify-content:center;box-shadow:var(--elev-2);opacity:0;visibility:hidden;transition:all .25s var(--ease);z-index:70;cursor:pointer;}
.back-top.is-show{opacity:1;visibility:visible;}
.back-top:hover{background:var(--brand);border-color:var(--brand);color:#fff;}

@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .toc-aside{display:none;}
  .explore-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-wrap{grid-template-columns:minmax(0,1fr);}
  .cta-inner{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:900px){
  .nav-links{display:none;width:100%;order:3;padding:8px 0 16px;border-top:1px solid var(--line);}
  .nav-links.is-open{display:flex;flex-direction:column;align-items:flex-start;gap:4px;}
  .site-header.is-scrolled .nav-links{border-top-color:var(--line-dark);}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .nav-search{order:2;flex:1 1 100%;max-width:none;margin:0;}
  .header-inner{padding-top:10px;padding-bottom:10px;min-height:auto;}
  .site-header.is-scrolled .header-inner{min-height:auto;}
}
@media (max-width:640px){
  .explore-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .article-hero{padding-top:32px;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .btn{width:auto;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --brand:#FF7A2F;
  --brand-ink:#E4631A;
  --secondary:#17C3B2;
  --ink-900:#0E0D12;
  --ink-800:#16151C;
  --ink-700:#22212B;
  --paper:#F6F4F1;
  --card:#FFFFFF;
  --text:#1B1A20;
  --text-2:#5C5A66;
  --line:#E5E1DB;
  --line-dark:#2A2833;
  --radius-sm:12px;
  --radius:16px;
  --radius-lg:24px;
  --pill:999px;
  --elev-1:0 1px 2px rgba(20,18,24,.04);
  --elev-2:0 12px 32px -12px rgba(20,18,24,.18);
  --ease:200ms cubic-bezier(.2,.7,.2,1);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-serif:"Noto Serif SC","Songti SC",Georgia,serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  padding-top:72px;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.18;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease)}
a:hover{color:var(--brand-ink)}
button,input,select,textarea{font:inherit;color:inherit}
button{border:0;background:none;cursor:pointer}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
::selection{background:rgba(255,122,47,.24)}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 20px}
@media (min-width:640px){.container{padding:0 32px}}
@media (min-width:1024px){.container{padding:0 48px}}

.section{padding:clamp(56px,8vw,120px) 0}
.section-tight{padding:clamp(40px,5vw,72px) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:clamp(28px,4vw,48px)}
.section-title{position:relative;padding-left:16px;font-size:clamp(24px,2.6vw,36px)}
.section-title::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:.82em;border-radius:3px;background:var(--brand)}
.section-title.serif{font-family:var(--font-serif);font-weight:600;letter-spacing:0}
.section-desc{margin-top:12px;font-size:15.5px;color:var(--text-2);max-width:62ch}
.section-more{font-size:15px;font-weight:700;color:var(--brand-ink);border-bottom:1px solid transparent;padding-bottom:2px;transition:border-color var(--ease),color var(--ease)}
.section-more:hover{border-color:var(--brand);color:var(--brand-ink)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--pill);
  font-size:15px;font-weight:700;line-height:1;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn i{font-size:14px}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-lg{height:54px;padding:0 30px;font-size:16px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px -12px rgba(255,122,47,.9)}
.btn-primary:hover{background:#FF8A48;color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:rgba(255,255,255,.34);color:#fff;background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.1);color:#fff}
.btn-outline{border-color:var(--line);background:#fff;color:var(--text)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-ink);transform:translateY(-1px)}
.btn-on-dark{background:#fff;color:var(--ink-900)}
.btn-on-dark:hover{background:var(--brand);color:#fff}
.btn:disabled{opacity:.4;cursor:not-allowed}
.btn-text{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--brand-ink);height:auto;padding:0}
.btn-text::after{content:"";width:18px;height:1px;background:currentColor;transition:width var(--ease)}
.btn-text:hover::after{width:26px}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:var(--pill);
  font-size:12.5px;font-weight:600;line-height:1.3;
  border:1px solid var(--line);background:#fff;color:var(--text-2);
}
.tag-brand{background:rgba(255,122,47,.12);border-color:rgba(255,122,47,.32);color:var(--brand-ink)}
.tag-cyan{background:rgba(23,195,178,.12);border-color:rgba(23,195,178,.32);color:#0E8C80}
.tag-dark{background:rgba(255,255,255,.06);border-color:var(--line-dark);color:rgba(255,255,255,.78)}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:200;
  background:var(--ink-900);
  border-bottom:1px solid var(--line-dark);
  transition:background-color var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{background:rgba(14,13,18,.82);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);box-shadow:0 10px 30px -20px rgba(0,0,0,.9)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height var(--ease)}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:19px;letter-spacing:-.01em;flex:0 0 auto}
.brand:hover{color:#fff}
.brand-mark{width:12px;height:12px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 3px rgba(255,122,47,.2);display:inline-block}
.brand-text{white-space:nowrap}

.nav-search{flex:1 1 auto;display:flex;justify-content:center;max-width:620px;margin:0 auto;min-width:0}
.search-box{
  display:flex;align-items:center;gap:10px;width:100%;height:44px;
  padding:0 6px 0 16px;border-radius:var(--pill);
  background:rgba(255,255,255,.06);border:1px solid var(--line-dark);
  transition:border-color var(--ease),box-shadow var(--ease),background-color var(--ease);
}
.search-box:hover{border-color:rgba(255,255,255,.3)}
.search-box:focus-within{border-color:var(--brand);background:rgba(255,255,255,.1);box-shadow:0 0 0 4px rgba(255,122,47,.18)}
.search-box > i{color:rgba(255,255,255,.5);font-size:15px;flex:0 0 auto}
.search-box input{flex:1 1 auto;min-width:0;height:100%;background:none;border:0;outline:none;color:#fff;font-size:15px}
.search-box input::placeholder{color:rgba(255,255,255,.44)}
.search-box button[type="submit"]{
  flex:0 0 auto;height:32px;padding:0 16px;border-radius:var(--pill);
  background:var(--brand);color:#fff;font-size:13.5px;font-weight:700;
  transition:background-color var(--ease),transform var(--ease);
}
.search-box button[type="submit"]:hover{background:#FF8A48}
.search-box button[type="submit"]:active{transform:translateY(1px)}

.nav-links{display:flex;align-items:center;gap:26px;flex:0 0 auto}
.nav-links a{position:relative;color:rgba(255,255,255,.72);font-size:15px;padding:6px 2px;white-space:nowrap}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform var(--ease)}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--brand)}
.nav-links a.active::after{transform:scaleX(1)}

.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line-dark);color:#fff;font-size:17px;
  align-items:center;justify-content:center;
  transition:border-color var(--ease),background-color var(--ease);
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}
.nav-scrim{position:fixed;inset:0;background:rgba(14,13,18,.6);backdrop-filter:blur(2px);opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:190}
body.nav-open .nav-scrim{opacity:1;visibility:visible}

/* ---------- 页面 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  padding:clamp(36px,5vw,60px) 0 clamp(40px,5vw,68px);
  background-color:var(--ink-900);
  background-image:
    linear-gradient(96deg,rgba(14,13,18,.96) 0%,rgba(14,13,18,.86) 42%,rgba(14,13,18,.42) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center 32%;
}
.page-hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:44px;background:linear-gradient(180deg,rgba(14,13,18,0),rgba(14,13,18,.9));pointer-events:none}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.55);margin-bottom:22px}
.breadcrumb a{color:rgba(255,255,255,.72)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:rgba(255,255,255,.92)}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand);margin-bottom:16px}
.hero-eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--secondary);display:inline-block}
.page-hero h1{font-size:clamp(30px,4.4vw,50px);line-height:1.14;max-width:22ch;color:#fff}
.page-hero .hero-sub{margin-top:18px;font-size:clamp(15px,1.4vw,17px);line-height:1.85;color:rgba(255,255,255,.72);max-width:58ch}
.page-hero .hero-chips{margin-top:28px}
.page-hero .tag-dark{background:rgba(255,255,255,.08)}

/* ---------- 索引主体双栏 ---------- */
.index-layout{display:grid;grid-template-columns:256px minmax(0,1fr);gap:clamp(24px,3.4vw,52px);align-items:start}
.index-rail{position:sticky;top:96px}
.rail-panel{display:flex;flex-direction:column;gap:26px;background:transparent}
.rail-group h3{font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--text-2);margin-bottom:12px}
.rail-list li + li{margin-top:2px}
.rail-list a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:9px 12px;border-radius:10px;font-size:14.5px;color:var(--text);
  transition:background-color var(--ease),color var(--ease);
}
.rail-list a:hover{background:#fff;color:var(--brand-ink);box-shadow:var(--elev-1)}
.rail-list a.active{background:rgba(255,122,47,.12);color:var(--brand-ink);font-weight:700}
.rail-count{font-size:12px;color:var(--text-2);font-variant-numeric:tabular-nums}
.rail-note{margin-top:6px;padding:18px;border-radius:var(--radius);background:var(--ink-800);color:rgba(255,255,255,.7)}
.rail-note strong{display:block;color:#fff;font-size:15px;margin-bottom:8px}
.rail-note p{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.62);margin-bottom:14px}
.rail-note .btn{width:100%}

.list-toolbar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:6px;
}
.list-toolbar .result{font-size:14px;color:var(--text-2)}
.list-toolbar .result strong{color:var(--text);font-variant-numeric:tabular-nums}
.sort-chips{display:flex;gap:8px;flex-wrap:wrap}
.sort-chips a{font-size:13px;font-weight:600;color:var(--text-2);padding:6px 13px;border-radius:var(--pill);border:1px solid var(--line);background:#fff;transition:all var(--ease)}
.sort-chips a:hover{border-color:var(--brand);color:var(--brand-ink)}
.sort-chips a.active{background:var(--ink-900);border-color:var(--ink-900);color:#fff}

.media-row{
  display:grid;grid-template-columns:160px minmax(0,1fr) auto;gap:20px;align-items:center;
  padding:20px 4px;border-bottom:1px solid var(--line);
  transition:background-color var(--ease);
}
.media-row:hover{background:rgba(255,255,255,.65)}
.media-thumb{display:block;width:160px;aspect-ratio:16/10;border-radius:var(--radius-sm);overflow:hidden;background:var(--ink-700)}
.media-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.media-row:hover .media-thumb img{transform:scale(1.04)}
.media-title-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px}
.media-title{font-size:18px;font-weight:700;letter-spacing:-.01em}
.media-title a{color:var(--text)}
.media-title a:hover{color:var(--brand-ink)}
.media-desc{font-size:14.5px;line-height:1.8;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.media-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:10px;font-size:13px;color:var(--text-2);font-variant-numeric:tabular-nums}
.media-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line);display:inline-block}
.media-arrow{
  width:42px;height:42px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--text-2);background:#fff;
  transition:all var(--ease);
}
.media-arrow:hover{border-color:var(--brand);color:var(--brand);transform:translateX(3px)}

.list-foot{margin-top:28px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.list-foot p{font-size:14px;color:var(--text-2)}

/* ---------- 能力板块 ---------- */
.cap-grid{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:clamp(28px,4vw,72px);align-items:start}
.cap-lead h2{font-size:clamp(24px,2.6vw,34px)}
.cap-lead p{margin-top:18px;font-size:15.5px;color:var(--text-2);max-width:44ch}
.cap-lead .btn{margin-top:26px}
.cap-list{display:flex;flex-direction:column;gap:0}
.cap-item{padding:24px 0;border-top:1px solid var(--line);display:grid;grid-template-columns:64px minmax(0,1fr);gap:20px}
.cap-item:last-child{border-bottom:1px solid var(--line)}
.cap-num{font-size:15px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:.04em}
.cap-item h3{font-size:18px;margin-bottom:8px}
.cap-item p{font-size:14.5px;color:var(--text-2);line-height:1.85}

/* ---------- 场景 ---------- */
.scenario{padding:26px 0 26px 22px;border-left:3px solid var(--line);transition:border-color var(--ease)}
.scenario:hover{border-left-color:var(--brand)}
.scenario h3{font-size:17px;margin-bottom:10px}
.scenario p{font-size:14.5px;color:var(--text-2);line-height:1.85}
.scenario .tag{margin-top:14px}
.scenario-grid{margin-top:-6px}

/* ---------- 流程 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;position:relative}
.flow-grid::before{content:"";position:absolute;top:19px;left:6%;right:6%;height:1px;background:var(--line);z-index:0}
.flow-step{position:relative;z-index:1;padding-right:8px}
.flow-dot{
  width:40px;height:40px;border-radius:50%;background:#fff;border:1px solid var(--line);
  display:grid;place-items:center;font-size:14px;font-weight:800;color:var(--brand);
  font-variant-numeric:tabular-nums;margin-bottom:18px;transition:all var(--ease);
}
.flow-step:hover .flow-dot{border-color:var(--brand);box-shadow:0 0 0 5px rgba(255,122,47,.12)}
.flow-step h3{font-size:17px;margin-bottom:8px}
.flow-step p{font-size:14.5px;color:var(--text-2);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:clamp(28px,4vw,64px);align-items:start}
.accordion{background:transparent;border:0;margin:0;padding:0}
.accordion-item{border-top:1px solid var(--line);border-bottom:0}
.accordion-item:last-child{border-bottom:1px solid var(--line)}
.accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;font-size:16.5px;font-weight:700;color:var(--text);
  background:transparent;border:0;line-height:1.5;transition:color var(--ease);
}
.accordion-title::before{display:none}
.accordion-title::after{
  content:"+";font-size:22px;font-weight:400;line-height:1;color:var(--brand);
  transition:transform var(--ease);flex:0 0 auto;
}
.accordion-title:hover{color:var(--brand-ink)}
.accordion-item.is-active .accordion-title{color:var(--brand-ink)}
.accordion-item.is-active .accordion-title::after{transform:rotate(45deg)}
.accordion-content{padding:0 0 22px;border:0;background:transparent;color:var(--text-2);font-size:15px;line-height:1.9}
.accordion-content p{margin:0}
.faq-side{
  padding:32px;border-radius:var(--radius-lg);color:#fff;
  background-color:var(--ink-800);
  background-image:linear-gradient(160deg,rgba(34,33,43,.92),rgba(14,13,18,.98)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  border:1px solid var(--line-dark);
}
.faq-side h3{color:#fff;font-size:19px;margin-bottom:12px}
.faq-side p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.68);margin-bottom:22px}
.faq-side .btn{width:100%}
.faq-side .meta{margin-top:16px;font-size:13px;color:rgba(255,255,255,.5)}

/* ---------- 底部 CTA 带 ---------- */
.cta-band{
  position:relative;color:#fff;overflow:hidden;
  background-color:var(--ink-900);
  background-image:linear-gradient(100deg,rgba(14,13,18,.97) 0%,rgba(14,13,18,.86) 55%,rgba(14,13,18,.6) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-top:1px solid var(--line-dark);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;padding:clamp(48px,6vw,84px) 0}
.cta-inner h2{font-size:clamp(24px,3vw,38px);color:#fff;max-width:20ch}
.cta-inner p{margin-top:14px;font-size:15.5px;color:rgba(255,255,255,.68);max-width:46ch}
.subscribe-form{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.subscribe-form input{
  height:52px;min-width:260px;flex:1 1 260px;max-width:340px;
  padding:0 20px;border-radius:var(--pill);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.22);
  color:#fff;font-size:15px;outline:none;
  transition:border-color var(--ease),background-color var(--ease),box-shadow var(--ease);
}
.subscribe-form input::placeholder{color:rgba(255,255,255,.45)}
.subscribe-form input:hover{border-color:rgba(255,255,255,.4)}
.subscribe-form input:focus{border-color:var(--brand);background:rgba(255,255,255,.12);box-shadow:0 0 0 4px rgba(255,122,47,.18)}
.form-tip{width:100%;font-size:13px;color:var(--secondary);min-height:20px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.68);border-top:1px solid var(--line-dark);padding-top:clamp(48px,6vw,80px)}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;margin-bottom:16px}
.footer-about p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);margin-bottom:18px;max-width:44ch}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:18px;letter-spacing:.01em}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-links a:hover{color:var(--brand)}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:12px;color:rgba(255,255,255,.66)}
.footer-contact i{color:var(--brand);margin-top:6px;font-size:13px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding:20px 0 30px;border-top:1px solid var(--line-dark);
  font-size:13px;color:rgba(255,255,255,.48);
}
.footer-bottom a{color:rgba(255,255,255,.74);text-decoration:underline}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:150;
  width:46px;height:46px;border-radius:50%;
  background:var(--ink-900);color:#fff;display:grid;place-items:center;
  border:1px solid var(--line-dark);box-shadow:var(--elev-2);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--ease),visibility var(--ease),transform var(--ease),background-color var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--brand);border-color:var(--brand)}

/* ---------- 渐显动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms cubic-bezier(.2,.7,.2,1),transform 520ms cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:1024px){
  .index-layout{grid-template-columns:1fr;gap:28px}
  .index-rail{position:static}
  .rail-panel{flex-direction:row;gap:24px;overflow-x:auto;padding-bottom:10px;-webkit-overflow-scrolling:touch}
  .rail-group{min-width:190px;flex:0 0 auto}
  .rail-note{display:none}
  .cap-grid{grid-template-columns:1fr;gap:28px}
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .flow-grid::before{display:none}
}
@media (max-width:980px){
  body{padding-top:110px}
  .header-inner{flex-wrap:wrap;height:auto;padding:10px 0;gap:12px}
  .site-header.is-scrolled .header-inner{height:auto}
  .brand{order:1}
  .nav-toggle{display:inline-flex;order:2;margin-left:auto}
  .nav-search{order:3;flex:1 0 100%;max-width:none;margin:0}
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;z-index:210;
    width:min(78vw,320px);
    background:var(--ink-800);border-left:1px solid var(--line-dark);
    flex-direction:column;align-items:stretch;gap:0;
    padding:92px 26px 32px;overflow-y:auto;
    transform:translateX(102%);transition:transform var(--ease);
  }
  body.nav-open .nav-links{transform:translateX(0)}
  .nav-links a{width:100%;padding:15px 0;font-size:16px;border-bottom:1px solid var(--line-dark)}
  .nav-links a::after{display:none}
  .nav-links a.active{color:var(--brand)}
}
@media (max-width:768px){
  .media-row{grid-template-columns:112px minmax(0,1fr);gap:16px;padding:18px 0}
  .media-thumb{width:112px;aspect-ratio:4/3}
  .media-arrow{display:none}
  .media-title{font-size:16.5px}
  .media-desc{-webkit-line-clamp:2}
  .list-foot{flex-direction:column;align-items:flex-start}
}
@media (max-width:640px){
  body{font-size:15.5px}
  .page-hero{padding-top:32px}
  .page-hero h1{font-size:clamp(26px,7vw,34px)}
  .flow-grid{grid-template-columns:1fr}
  .cap-item{grid-template-columns:1fr;gap:10px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .subscribe-form{width:100%}
  .subscribe-form input{max-width:none;flex:1 1 100%}
  .subscribe-form .btn{width:100%}
  .search-box{padding-left:14px}
  .search-box button[type="submit"]{padding:0 12px;font-size:0}
  .search-box button[type="submit"] i{font-size:14px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .brand-text{font-size:17px}
  .media-row{grid-template-columns:96px minmax(0,1fr);gap:14px}
  .media-thumb{width:96px}
  .media-meta{gap:7px}
  .faq-side{padding:24px}
  .to-top{right:14px;bottom:16px}
}

/* roulang page: category1 */
:root{
  --brand:#FF7A2F;
  --brand-dark:#E8641B;
  --brand-soft:rgba(255,122,47,.10);
  --secondary:#17C3B2;
  --ink:#0E0D12;
  --ink-2:#16151C;
  --ink-3:#22212B;
  --paper:#F6F4F1;
  --card:#FFFFFF;
  --text:#1B1A20;
  --muted:#5C5A66;
  --line:#E5E1DB;
  --line-dark:#2A2833;
  --r-btn:999px;
  --r-card:16px;
  --r-img:12px;
  --r-hero:24px;
  --elev-1:0 1px 2px rgba(20,18,24,.04);
  --elev-2:0 12px 32px -12px rgba(20,18,24,.18);
  --t:200ms cubic-bezier(.2,.7,.2,1);
  --section-y:clamp(56px,8vw,120px);
  --container:1280px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:72px;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--text);text-decoration:none;transition:color var(--t),border-color var(--t),background var(--t),opacity var(--t)}
a:hover,a:focus{color:var(--brand)}
h1,h2,h3,h4,h5{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.15;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit}
input,textarea,select{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:rgba(255,122,47,.24)}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:640px){ .container{padding-left:32px;padding-right:32px} }
@media (min-width:1024px){ .container{padding-left:48px;padding-right:48px} }

.tabular{font-variant-numeric:tabular-nums}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t),filter var(--t);
  white-space:nowrap;
}
.btn i{font-size:13px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px -10px rgba(255,122,47,.75)}
.btn-primary:hover,.btn-primary:focus{background:var(--brand-dark);color:#fff;filter:brightness(1.06)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover,.btn-ghost:focus{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.btn-ghost:active{transform:translateY(1px)}
.btn-on-dark{background:#fff;color:var(--ink)}
.btn-on-dark:hover,.btn-on-dark:focus{background:var(--brand);color:#fff}
.btn-on-dark:active{transform:translateY(1px)}
.btn-ghost-dark{background:transparent;color:#fff;border-color:rgba(255,255,255,.34)}
.btn-ghost-dark:hover,.btn-ghost-dark:focus{border-color:var(--brand);color:var(--brand);background:rgba(255,122,47,.12)}
.btn-sm{height:36px;padding:0 16px;font-size:13.5px}
.btn-lg{height:54px;padding:0 32px;font-size:16px}
.btn.is-disabled{opacity:.4;pointer-events:none}

.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);position:relative;
}
.text-link::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:1px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform var(--t)}
.text-link:hover{color:var(--brand-dark)}
.text-link:hover::after{transform:scaleX(1)}
.text-link i{font-size:11px;transition:transform var(--t)}
.text-link:hover i{transform:translateX(3px)}

/* ============ 标签 ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1.4;
  border:1px solid rgba(255,122,47,.24);
  background:var(--brand-soft);color:#B6501A;
  white-space:nowrap;
}
.tag-dark{background:rgba(255,255,255,.06);border-color:var(--line-dark);color:rgba(255,255,255,.76)}
.tag-teal{background:rgba(23,195,178,.12);border-color:rgba(23,195,178,.3);color:#0E8C81}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  height:72px;display:flex;align-items:center;
  background:linear-gradient(180deg,rgba(14,13,18,.94),rgba(14,13,18,.74));
  border-bottom:1px solid transparent;
  transition:height var(--t),background var(--t),border-color var(--t),backdrop-filter var(--t);
}
.site-header.is-scrolled{
  height:60px;
  background:rgba(14,13,18,.8);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line-dark);
}
.nav-inner{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  grid-template-areas:"logo search links";
  align-items:center;
  gap:28px;
  width:100%;
}
.logo{
  grid-area:logo;
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;letter-spacing:-.01em;color:#fff;
}
.logo:hover,.logo:focus{color:#fff}
.logo-mark{
  width:22px;height:22px;border-radius:7px;background:var(--brand);position:relative;
  box-shadow:0 0 0 1px rgba(255,122,47,.35),0 0 18px rgba(255,122,47,.45);
  flex:none;
}
.logo-mark::after{
  content:"";position:absolute;left:6px;top:6px;right:6px;bottom:6px;
  border:2px solid var(--ink);border-radius:3px;
}
.logo-text{white-space:nowrap}

.nav-search{
  grid-area:search;
  position:relative;
  display:flex;align-items:center;
  width:100%;max-width:580px;height:46px;
  margin:0 auto;
  border-radius:var(--r-btn);
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.16);
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.nav-search:hover{border-color:rgba(255,122,47,.5);background:rgba(255,255,255,.1)}
.nav-search:focus-within{
  border-color:var(--brand);
  background:rgba(255,255,255,.12);
  box-shadow:0 0 0 4px rgba(255,122,47,.18);
}
.nav-search .search-icon{
  position:absolute;left:18px;font-size:14px;color:rgba(255,255,255,.58);pointer-events:none;
}
.nav-search input{
  flex:1;height:100%;min-width:0;
  padding:0 12px 0 46px;
  background:transparent;border:0;outline:0;
  color:#fff;font-size:14.5px;
}
.nav-search input::placeholder{color:rgba(255,255,255,.48)}
.nav-search-btn{
  height:34px;margin-right:5px;padding:0 20px;
  border:0;border-radius:var(--r-btn);
  background:var(--brand);color:#fff;
  font-size:14px;font-weight:700;cursor:pointer;
  transition:background var(--t),transform var(--t);
}
.nav-search-btn:hover{background:var(--brand-dark)}
.nav-search-btn:active{transform:translateY(1px)}

.nav-links{
  grid-area:links;
  display:flex;align-items:center;gap:24px;
}
.nav-links a{
  position:relative;
  padding:6px 0;
  font-size:15px;font-weight:500;color:rgba(255,255,255,.76);
  white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform var(--t);
}
.nav-links a:hover,.nav-links a:focus{color:#fff}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--brand)}

.nav-toggle{
  grid-area:toggle;
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;
  border-radius:12px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);color:#fff;font-size:16px;cursor:pointer;
  transition:border-color var(--t),background var(--t);
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}

@media (max-width:1023px){
  body{padding-top:126px}
  .site-header{height:auto;padding:10px 0}
  .site-header.is-scrolled{height:auto;padding:8px 0}
  .nav-inner{
    grid-template-columns:1fr auto;
    grid-template-areas:"logo toggle" "search search";
    gap:10px;
  }
  .nav-toggle{display:inline-flex}
  .nav-links{
    display:none;
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    padding:6px 20px 16px;
    background:rgba(14,13,18,.97);
    -webkit-backdrop-filter:blur(10px);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line-dark);
  }
  .nav-links.is-open{display:flex}
  .nav-links a{padding:13px 0;border-bottom:1px solid var(--line-dark);font-size:15px}
  .nav-links a:last-child{border-bottom:0}
  .nav-links a::after{display:none}
  .nav-search{max-width:none}
}
@media (max-width:520px){
  .nav-search{height:44px}
  .nav-search input{font-size:14px;padding-left:42px}
  .nav-search .search-icon{left:15px}
  .nav-search-btn{padding:0 15px;font-size:13.5px}
  .logo{font-size:17px}
}

/* ============ 分类 Hero ============ */
.cat-hero-wrap{padding-top:clamp(24px,3vw,40px)}
.cat-hero{
  position:relative;
  display:flex;align-items:flex-end;
  min-height:clamp(300px,38vh,360px);
  padding:clamp(26px,4vw,46px);
  border-radius:var(--r-hero);
  overflow:hidden;
  color:#fff;
  background:
    linear-gradient(100deg,rgba(14,13,18,.96) 0%,rgba(14,13,18,.84) 42%,rgba(14,13,18,.46) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  box-shadow:var(--elev-2);
}
.cat-hero-inner{position:relative;z-index:2;width:100%;max-width:900px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  margin-bottom:14px;padding:6px 14px;
  border-radius:999px;
  font-size:12.5px;font-weight:700;letter-spacing:.04em;
  color:#FFD9BF;
  background:rgba(255,122,47,.16);
  border:1px solid rgba(255,122,47,.34);
}
.eyebrow i{font-size:11px;color:var(--brand)}
.cat-hero h1{
  font-size:clamp(26px,3.4vw,42px);
  line-height:1.16;
  color:#fff;
  letter-spacing:-.025em;
  max-width:20em;
}
.hero-sub{
  margin-top:14px;
  font-size:clamp(15px,1.3vw,17px);
  line-height:1.75;
  color:rgba(255,255,255,.76);
  max-width:40em;
}
.filter-bar{
  display:flex;flex-wrap:wrap;gap:20px 34px;
  margin-top:clamp(20px,2.6vw,30px);
  padding-top:clamp(18px,2.2vw,24px);
  border-top:1px solid rgba(255,255,255,.14);
}
.filter-group{display:flex;align-items:center;flex-wrap:wrap;gap:8px}
.filter-label{
  font-size:12.5px;font-weight:700;letter-spacing:.08em;
  color:rgba(255,255,255,.5);margin-right:4px;
}
.chip{
  display:inline-flex;align-items:center;
  padding:7px 16px;border-radius:var(--r-btn);
  font-size:13.5px;font-weight:600;
  color:rgba(255,255,255,.78);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t);
}
.chip:hover,.chip:focus{color:#fff;border-color:rgba(255,122,47,.6);background:rgba(255,122,47,.14)}
.chip:active{transform:translateY(1px)}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff}

/* ============ 通用板块 ============ */
.section{padding:var(--section-y) 0}
.section-tight{padding:clamp(40px,5vw,72px) 0}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:clamp(28px,3.4vw,44px);
}
.section-head h2{
  font-size:clamp(24px,2.6vw,36px);
  position:relative;padding-left:18px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.14em;bottom:.14em;width:3px;border-radius:3px;background:var(--brand);
}
.section-desc{
  margin-top:10px;
  font-size:15px;line-height:1.8;color:var(--muted);max-width:52em;
}
.section-divider{height:1px;background:var(--line);border:0;margin:0}

/* ============ 数据条 ============ */
.stat-band{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--elev-1);
  padding:clamp(22px,3vw,34px) clamp(20px,3vw,40px);
}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:clamp(16px,2.4vw,32px);
}
.stat-item{border-left:1px solid var(--line);padding-left:clamp(14px,2vw,24px)}
.stat-item:first-child{border-left:0;padding-left:0}
.stat-num{
  font-size:clamp(24px,2.8vw,34px);
  font-weight:800;letter-spacing:-.03em;line-height:1.1;
  font-variant-numeric:tabular-nums;
  color:var(--text);
}
.stat-num em{font-style:normal;color:var(--brand);font-size:.6em;margin-left:2px}
.stat-label{margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.6}
@media (max-width:768px){
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 20px}
  .stat-item:nth-child(3){border-left:0;padding-left:0}
}

/* ============ 海报网格 ============ */
.poster-grid{margin-left:-12px;margin-right:-12px}
.poster-grid > .cell{padding-left:12px;padding-right:12px;margin-bottom:clamp(24px,3vw,36px)}
.poster-card{
  position:relative;
  background:transparent;
  transition:transform var(--t);
}
.poster-media{
  position:relative;
  aspect-ratio:3/4;
  border-radius:var(--r-img);
  overflow:hidden;
  background:var(--ink-3);
  box-shadow:var(--elev-1);
  transition:box-shadow var(--t);
}
.poster-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform 420ms cubic-bezier(.2,.7,.2,1);
}
.poster-shade{
  position:absolute;left:0;right:0;bottom:0;height:58%;
  background:linear-gradient(180deg,rgba(14,13,18,0),rgba(14,13,18,.86));
  pointer-events:none;
}
.poster-badge{
  position:absolute;left:12px;top:12px;
  padding:4px 11px;border-radius:999px;
  font-size:12px;font-weight:700;
  background:rgba(14,13,18,.62);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
  color:#fff;border:1px solid rgba(255,255,255,.2);
}
.poster-badge.teal{color:#8FF0E6;border-color:rgba(23,195,178,.5)}
.card-actions{
  position:absolute;left:12px;right:12px;bottom:12px;
  display:flex;gap:8px;
  opacity:0;transform:translateY(10px);
  transition:opacity var(--t),transform var(--t);
}
.card-actions .btn{flex:1}
.poster-card:hover .poster-media{box-shadow:var(--elev-2)}
.poster-card:hover .poster-media img{transform:scale(1.04)}
.poster-card:hover .card-actions{opacity:1;transform:translateY(0)}
.poster-card:focus-within .card-actions{opacity:1;transform:translateY(0)}
.poster-body{padding:14px 2px 0}
.poster-title{font-size:17px;line-height:1.4;font-weight:700}
.poster-title a{color:var(--text)}
.poster-title a:hover{color:var(--brand)}
.poster-meta{
  margin-top:6px;font-size:13px;color:var(--muted);
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
}
.poster-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line);display:inline-block}
@media (max-width:1023px){
  .card-actions{opacity:1;transform:none}
}

/* ============ 媒体行 ============ */
.media-list{display:grid;gap:0}
.media-row{
  display:grid;
  grid-template-columns:170px minmax(0,1fr) auto;
  gap:22px;align-items:center;
  padding:22px 0;
  border-bottom:1px solid var(--line);
  transition:background var(--t);
}
.media-row:first-child{border-top:1px solid var(--line)}
.media-row:hover{background:rgba(255,255,255,.72)}
.media-thumb{
  width:170px;height:106px;border-radius:var(--r-img);overflow:hidden;background:var(--ink-3);
  box-shadow:var(--elev-1);
}
.media-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 420ms cubic-bezier(.2,.7,.2,1)}
.media-row:hover .media-thumb img{transform:scale(1.05)}
.media-body h3{font-size:18px;font-weight:700;line-height:1.4}
.media-body h3 a{color:var(--text)}
.media-body h3 a:hover{color:var(--brand)}
.media-body p{
  margin-top:8px;
  font-size:14.5px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  max-width:60em;
}
.media-meta{
  margin-top:10px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}
.media-arrow{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:50%;
  border:1px solid var(--line);color:var(--muted);
  transition:border-color var(--t),color var(--t),background var(--t),transform var(--t);
}
.media-arrow:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);transform:translateX(3px)}
@media (max-width:768px){
  .media-row{grid-template-columns:112px minmax(0,1fr);gap:16px;align-items:flex-start}
  .media-thumb{width:112px;height:76px}
  .media-arrow{display:none}
  .media-body h3{font-size:16.5px}
  .media-body p{-webkit-line-clamp:2;font-size:14px}
}

/* ============ 分页 ============ */
.pager{
  display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;
  margin-top:clamp(28px,3.6vw,48px);
}
.pager-link{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:42px;height:42px;padding:0 14px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--card);
  font-size:14px;font-weight:600;color:var(--muted);
  transition:border-color var(--t),color var(--t),background var(--t),transform var(--t);
}
.pager-link:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.pager-link:active{transform:translateY(1px)}
.pager-link.is-current{background:var(--brand);border-color:var(--brand);color:#fff}
.pager-link.is-current:hover{color:#fff}
.pager-link.is-disabled{opacity:.4;pointer-events:none}
.pager-gap{color:var(--muted);font-size:14px;padding:0 2px}

/* ============ 翻阅方式 ============ */
.way-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.way-card{
  display:flex;flex-direction:column;
  padding:clamp(24px,2.6vw,32px);
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--elev-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.way-card:hover{transform:translateY(-4px);box-shadow:var(--elev-2);border-color:rgba(255,122,47,.3)}
.way-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:14px;
  background:var(--brand-soft);color:var(--brand);
  font-size:18px;margin-bottom:18px;
}
.way-card h3{font-size:19px}
.way-card p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--muted);flex:1}
.way-card .text-link{margin-top:20px}
@media (max-width:1023px){ .way-grid{grid-template-columns:1fr;gap:16px} }

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:clamp(24px,3vw,56px);align-items:start}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  width:100%;padding:22px 0;
  background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16.5px;font-weight:700;color:var(--text);
  transition:color var(--t);
}
.faq-q:hover{color:var(--brand)}
.faq-icon{position:relative;width:16px;height:16px;flex:none}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--muted);border-radius:2px;
  transition:transform var(--t),background var(--t);
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item.is-open .faq-icon::before{background:var(--brand)}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg) scaleY(0);background:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms cubic-bezier(.2,.7,.2,1)}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{
  padding:0 44px 24px 0;
  font-size:15px;line-height:1.9;color:var(--muted);
}
.side-card{
  padding:clamp(24px,2.6vw,34px);
  border-radius:var(--r-card);
  background:linear-gradient(160deg,var(--ink-2),var(--ink));
  color:#fff;
  border:1px solid var(--line-dark);
  box-shadow:0 18px 40px -24px rgba(20,18,24,.6);
  position:sticky;top:100px;
}
.side-card h3{color:#fff;font-size:20px;line-height:1.4}
.side-card p{margin-top:12px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.66)}
.side-card .btn{margin-top:22px;width:100%}
.side-list{margin-top:22px;padding-top:20px;border-top:1px solid var(--line-dark);display:grid;gap:12px}
.side-list li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.7)}
.side-list i{color:var(--secondary);font-size:12px}
@media (max-width:1023px){
  .faq-layout{grid-template-columns:1fr}
  .side-card{position:static}
  .faq-q{font-size:15.5px;padding:18px 0}
  .faq-a p{padding-right:0}
}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  padding:clamp(36px,5vw,68px);
  border-radius:var(--r-hero);
  color:#fff;
  background:
    linear-gradient(100deg,rgba(14,13,18,.96),rgba(14,13,18,.76)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  box-shadow:var(--elev-2);
}
.cta-inner{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(24px,3vw,48px);align-items:center}
.cta-inner h2{font-size:clamp(24px,2.8vw,36px);color:#fff;line-height:1.2}
.cta-inner .cta-desc{margin-top:14px;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.72);max-width:34em}
.subscribe-form{display:flex;gap:10px}
.subscribe-form input{
  flex:1;min-width:0;height:52px;padding:0 22px;
  border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.09);
  color:#fff;font-size:15px;outline:0;
  transition:border-color var(--t),background var(--t),box-shadow var(--t);
}
.subscribe-form input::placeholder{color:rgba(255,255,255,.5)}
.subscribe-form input:focus{border-color:var(--brand);background:rgba(255,255,255,.14);box-shadow:0 0 0 4px rgba(255,122,47,.2)}
.subscribe-note{margin-top:14px;font-size:13px;color:rgba(255,255,255,.5)}
@media (max-width:1023px){
  .cta-inner{grid-template-columns:1fr}
}
@media (max-width:520px){
  .subscribe-form{flex-direction:column}
  .subscribe-form .btn{width:100%}
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.6);
  padding:clamp(48px,6vw,80px) 0 0;
  margin-top:var(--section-y);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:clamp(24px,3vw,44px);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{
  width:20px;height:20px;border-radius:6px;background:var(--brand);display:inline-block;
  box-shadow:0 0 16px rgba(255,122,47,.45);
}
.footer-brand .brand-text{color:#fff;font-size:18px;font-weight:800;letter-spacing:-.01em}
.footer-about p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.58);margin-bottom:18px;max-width:26em}
.hero-chips{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;letter-spacing:.02em}
.footer-links li{margin-bottom:11px}
.footer-links a{color:rgba(255,255,255,.6);font-size:14px}
.footer-links a:hover,.footer-links a:focus{color:var(--brand)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;margin-bottom:13px;color:rgba(255,255,255,.6);line-height:1.7}
.footer-contact i{color:var(--brand);margin-top:5px;font-size:13px;flex:none}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  margin-top:clamp(36px,5vw,60px);
  padding:22px 0;
  border-top:1px solid var(--line-dark);
  font-size:13px;color:rgba(255,255,255,.48);
}
.footer-bottom a{color:rgba(255,255,255,.68);border-bottom:1px solid rgba(255,255,255,.22);padding-bottom:1px}
.footer-bottom a:hover{color:var(--brand);border-color:var(--brand)}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 24px}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr}
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:70;
  display:inline-flex;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line);
  background:var(--card);color:var(--text);
  box-shadow:var(--elev-2);
  cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity var(--t),visibility var(--t),transform var(--t),background var(--t),color var(--t),border-color var(--t);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
.to-top:active{transform:translateY(1px)}
@media (max-width:520px){ .to-top{right:14px;bottom:16px;width:42px;height:42px} }

/* ============ 进场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms cubic-bezier(.2,.7,.2,1),transform 520ms cubic-bezier(.2,.7,.2,1)}
.reveal.is-in{opacity:1;transform:translateY(0)}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* roulang page: category3 */
:root{
  --brand:#FF7A2F;
  --brand-deep:#C4550F;
  --secondary:#17C3B2;
  --secondary-deep:#0E8C80;
  --ink-900:#0E0D12;
  --ink-800:#16151C;
  --ink-700:#22212B;
  --paper:#F6F4F1;
  --card:#FFFFFF;
  --text:#1B1A20;
  --text-2:#5C5A66;
  --line:#E5E1DB;
  --line-dark:#2A2833;
  --pill:999px;
  --r-card:16px;
  --r-img:12px;
  --r-hero:24px;
  --elev-1:0 1px 2px rgba(20,18,24,.04);
  --elev-2:0 12px 32px -12px rgba(20,18,24,.18);
  --t:200ms cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border:0;}
a{color:inherit;text-decoration:none;transition:color var(--t),border-color var(--t),background-color var(--t);}
a:hover,a:focus{color:var(--brand);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5,p{margin:0;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font:inherit;}
table{border-collapse:collapse;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(255,122,47,.18);border-radius:6px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 18px;border-radius:0 0 12px 0;z-index:200;}
.skip-link:focus{left:0;color:#fff;}

/* 容器 */
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 48px;}
@media(max-width:1024px){.container{padding:0 32px;}}
@media(max-width:640px){.container{padding:0 20px;}}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(14,13,18,.94);
  border-bottom:1px solid var(--line-dark);
  transition:background-color var(--t),box-shadow var(--t);
}
.site-header .header-inner{display:flex;align-items:center;gap:26px;height:72px;transition:height var(--t);}
.site-header.scrolled{background:rgba(14,13,18,.82);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);box-shadow:0 10px 30px -20px rgba(0,0,0,.9);}
.site-header.scrolled .header-inner{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:#fff;}
.brand:hover,.brand:focus{color:#fff;}
.brand-mark{position:relative;width:16px;height:16px;border-radius:5px;background:var(--brand);box-shadow:0 0 0 4px rgba(255,122,47,.16);flex:0 0 auto;}
.brand-mark::after{content:"";position:absolute;inset:5px;border-radius:2px;background:var(--ink-900);}
.brand-text{font-size:20px;font-weight:800;letter-spacing:-.02em;line-height:1;}

/* 搜索 */
.nav-search{position:relative;flex:1 1 460px;max-width:600px;margin:0 auto;}
.nav-search .field{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 6px 0 18px;
  border-radius:var(--pill);background:rgba(255,255,255,.07);
  border:1px solid var(--line-dark);
  transition:border-color var(--t),background-color var(--t),box-shadow var(--t);
}
.nav-search:hover .field{border-color:#4A4756;}
.nav-search:focus-within .field{border-color:var(--brand);background:rgba(255,255,255,.1);box-shadow:0 0 0 4px rgba(255,122,47,.14);}
.nav-search .fa-magnifying-glass{color:#8F8C9C;font-size:14px;}
.nav-search input{flex:1 1 auto;min-width:0;height:40px;border:0;background:transparent;color:#fff;font-size:14.5px;outline:none;}
.nav-search input::placeholder{color:#8F8C9C;}
.nav-search .search-btn{
  display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 16px;
  border-radius:var(--pill);background:var(--brand);color:#fff;font-size:13.5px;font-weight:600;flex:0 0 auto;
  transition:filter var(--t),transform var(--t);
}
.nav-search .search-btn:hover{filter:brightness(1.06);color:#fff;}
.nav-search .search-btn:active{transform:translateY(1px);}
.search-suggest{
  position:absolute;top:calc(100% + 10px);left:0;right:0;background:#fff;
  border-radius:14px;box-shadow:var(--elev-2);padding:8px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.nav-search:focus-within .search-suggest{opacity:1;visibility:visible;transform:translateY(0);}
.search-suggest a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 12px;border-radius:10px;font-size:14px;color:var(--text);}
.search-suggest a:hover{background:var(--paper);color:var(--brand);}
.search-suggest span{color:var(--text-2);font-size:12.5px;}

/* 导航链接 */
.nav-links{display:flex;align-items:center;gap:24px;flex:0 0 auto;}
.nav-links a{position:relative;display:inline-block;padding:6px 0;color:#CFCBD8;font-size:14.5px;white-space:nowrap;}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;border-radius:2px;background:var(--brand);transition:width var(--t);}
.nav-links a:hover{color:#fff;}
.nav-links a:hover::after{width:100%;}
.nav-links a.active{color:var(--brand);}
.nav-links a.active::after{width:100%;}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line-dark);color:#fff;align-items:center;justify-content:center;transition:border-color var(--t),background-color var(--t);}
.nav-toggle:hover{border-color:var(--brand);background:rgba(255,122,47,.12);}
.mobile-drawer{display:none;border-top:1px solid var(--line-dark);background:rgba(14,13,18,.98);}
.mobile-drawer.open{display:block;}
.mobile-drawer a{display:block;padding:14px 0;color:#CFCBD8;font-size:15px;border-bottom:1px solid var(--line-dark);}
.mobile-drawer a:last-child{border-bottom:0;}
.mobile-drawer a.active{color:var(--brand);}
@media(max-width:1024px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
}
@media(max-width:640px){
  .site-header .header-inner{flex-wrap:wrap;height:auto;padding:12px 0 14px;gap:12px;}
  .site-header.scrolled .header-inner{height:auto;}
  .brand{order:1;}
  .nav-toggle{order:2;margin-left:auto;}
  .nav-search{order:3;flex:1 1 100%;max-width:none;margin:0;}
}

/* 通用板块 */
.section{padding:clamp(48px,7vw,96px) 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.16em;color:var(--brand);font-weight:700;margin-bottom:12px;text-transform:uppercase;}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand);}
.section-title{font-size:clamp(24px,2.6vw,36px);font-weight:800;letter-spacing:-.02em;line-height:1.25;}
.section-title.serif{font-family:"Noto Serif SC","Songti SC","SimSun",serif;font-weight:600;}
.section-sub{color:var(--text-2);font-size:15.5px;margin-top:10px;max-width:620px;}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--brand);white-space:nowrap;border-bottom:1px solid transparent;}
.link-more:hover{border-bottom-color:var(--brand);}
@media(max-width:768px){
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--pill);font-size:15px;font-weight:600;border:1px solid transparent;transition:filter var(--t),transform var(--t),background-color var(--t),border-color var(--t),color var(--t);}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{filter:brightness(1.06);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff;}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.1);color:#fff;transform:translateY(-1px);}
.btn-outline{border-color:#CFCAC2;color:var(--text);background:transparent;}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);background:rgba(255,122,47,.06);}
.btn-sm{height:38px;padding:0 18px;font-size:13.5px;}
.btn-lg{height:54px;padding:0 32px;font-size:16px;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}

/* 标签 */
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--pill);font-size:12.5px;font-weight:500;background:rgba(255,122,47,.1);color:var(--brand-deep);border:1px solid rgba(255,122,47,.24);white-space:nowrap;}
.tag-teal{background:rgba(23,195,178,.12);color:var(--secondary-deep);border-color:rgba(23,195,178,.28);}
.tag-dark{background:rgba(255,255,255,.06);color:#CFCBD8;border-color:var(--line-dark);}

/* 分类页窄 Hero */
.cat-hero{
  position:relative;margin-top:24px;border-radius:var(--r-hero);overflow:hidden;
  min-height:clamp(290px,34vw,360px);display:flex;align-items:flex-end;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
}
.cat-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(14,13,18,.95) 0%,rgba(14,13,18,.8) 44%,rgba(14,13,18,.32) 100%);}
.cat-hero-inner{position:relative;z-index:2;padding:clamp(26px,4vw,52px);max-width:780px;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:#A9A6B4;margin-bottom:16px;}
.crumb a{color:#A9A6B4;}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#5C5A66;}
.crumb .now{color:#fff;}
.cat-hero h1{color:#fff;font-size:clamp(30px,4vw,48px);line-height:1.14;font-weight:800;letter-spacing:-.02em;}
.cat-hero p.lead{color:#CFCBD8;font-size:16.5px;line-height:1.8;margin-top:16px;max-width:620px;}
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.filter-pill{display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 16px;border-radius:var(--pill);border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);color:#EDEAF2;font-size:13.5px;transition:border-color var(--t),background-color var(--t),color var(--t),transform var(--t);}
.filter-pill:hover{border-color:var(--brand);color:#fff;background:rgba(255,122,47,.18);}
.filter-pill:active{transform:translateY(1px);}
.filter-pill.is-on{background:var(--brand);border-color:var(--brand);color:#fff;}
@media(max-width:640px){
  .cat-hero{border-radius:18px;min-height:320px;}
  .filter-bar{gap:8px;}
  .filter-pill{height:34px;padding:0 13px;font-size:13px;}
}

/* 本周热榜小 Hero */
.hot-band{
  margin-top:clamp(40px,5vw,64px);
  background:var(--ink-800);border:1px solid var(--line-dark);border-radius:var(--r-hero);
  padding:clamp(26px,3.6vw,44px);color:#fff;
  display:grid;grid-template-columns:1.35fr 1fr;gap:36px;align-items:center;
}
.hot-band h2{font-size:clamp(22px,2.4vw,32px);font-weight:800;letter-spacing:-.02em;line-height:1.3;}
.hot-band p{color:#A9A6B4;font-size:15px;margin-top:12px;max-width:520px;}
.hot-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hot-stats{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.stat-card{background:var(--ink-700);border:1px solid var(--line-dark);border-radius:14px;padding:16px 18px;transition:border-color var(--t),transform var(--t);}
.stat-card:hover{border-color:rgba(255,122,47,.5);transform:translateY(-3px);}
.stat-card b{display:block;font-size:26px;font-weight:800;color:var(--brand);letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-card span{display:block;font-size:13px;color:#9C99A8;margin-top:4px;}
@media(max-width:900px){
  .hot-band{grid-template-columns:1fr;gap:26px;}
}
@media(max-width:520px){
  .hot-stats{grid-template-columns:1fr;}
}

/* 时间轴榜单 */
.timeline{position:relative;margin-top:8px;}
.timeline::before{content:"";position:absolute;left:104px;top:24px;bottom:24px;width:1px;background:var(--line);}
.tl-item{position:relative;display:grid;grid-template-columns:80px 1fr;gap:24px;padding:18px 0;}
.tl-item::before{content:"";position:absolute;left:104px;top:40px;width:13px;height:13px;border-radius:50%;background:var(--paper);border:2px solid var(--brand);transform:translateX(-50%);z-index:2;transition:background-color var(--t);}
.tl-item:hover::before{background:var(--brand);}
.tl-index{font-family:"Inter",ui-monospace,SFMono-Regular,Menlo,monospace;font-variant-numeric:tabular-nums;font-size:34px;font-weight:800;line-height:1;letter-spacing:-.04em;color:var(--brand);text-align:right;padding-top:20px;transition:transform var(--t);}
.tl-item:hover .tl-index{transform:translateY(-3px);}
.tl-body{
  display:grid;grid-template-columns:220px 1fr;gap:22px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px;box-shadow:var(--elev-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.tl-item:hover .tl-body{transform:translateY(-4px);box-shadow:var(--elev-2);border-color:#DCD6CD;}
.tl-media{position:relative;border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/10;background:var(--ink-700);}
.tl-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t);}
.tl-item:hover .tl-media img{transform:scale(1.04);}
.tl-rank{position:absolute;left:10px;top:10px;display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:var(--pill);background:rgba(14,13,18,.76);color:#fff;font-size:12px;font-variant-numeric:tabular-nums;}
.tl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-2);margin-bottom:8px;}
.tl-meta .dot{width:3px;height:3px;border-radius:50%;background:#C6C2BA;}
.delta{display:inline-flex;align-items:center;gap:4px;height:22px;padding:0 10px;border-radius:var(--pill);font-size:12.5px;font-weight:600;font-variant-numeric:tabular-nums;}
.delta.up{background:rgba(23,195,178,.12);color:var(--secondary-deep);}
.delta.down{background:rgba(227,86,60,.1);color:#C0392B;}
.delta.flat{background:rgba(92,90,102,.1);color:var(--text-2);}
.tl-title{font-size:19px;font-weight:700;letter-spacing:-.01em;line-height:1.4;}
.tl-title a:hover{color:var(--brand);}
.tl-desc{color:var(--text-2);font-size:14.8px;line-height:1.85;margin-top:8px;}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
@media(max-width:900px){
  .tl-body{grid-template-columns:1fr;}
  .tl-media{aspect-ratio:16/9;}
}
@media(max-width:720px){
  .timeline::before{left:18px;top:18px;bottom:18px;}
  .tl-item{grid-template-columns:1fr;gap:10px;padding-left:44px;}
  .tl-item::before{left:18px;top:16px;}
  .tl-index{text-align:left;font-size:26px;padding-top:0;}
}

/* 三列口径卡 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.info-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--elev-1);transition:transform var(--t),box-shadow var(--t),border-color var(--t);}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--elev-2);border-color:#DCD6CD;}
.info-icon{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:14px;background:rgba(255,122,47,.1);color:var(--brand);font-size:18px;margin-bottom:18px;}
.info-card h3{font-size:18px;font-weight:700;letter-spacing:-.01em;}
.info-card p{color:var(--text-2);font-size:14.8px;line-height:1.85;margin-top:10px;}
@media(max-width:900px){.grid-3{grid-template-columns:1fr;}}

/* 单列媒体行（纯文本列表行） */
.line-list{border-top:1px solid var(--line);}
.line-item{display:grid;grid-template-columns:auto 1fr auto;gap:22px;align-items:center;padding:24px 0;border-bottom:1px solid var(--line);transition:padding-left var(--t);}
.line-item:hover{padding-left:8px;}
.line-num{font-family:"Inter",ui-monospace,monospace;font-variant-numeric:tabular-nums;font-size:14px;font-weight:700;color:var(--brand);width:34px;height:34px;border-radius:50%;border:1px solid rgba(255,122,47,.35);display:inline-flex;align-items:center;justify-content:center;}
.line-item h3{font-size:17px;font-weight:700;line-height:1.5;}
.line-item p{color:var(--text-2);font-size:14.6px;line-height:1.8;margin-top:6px;max-width:760px;}
.line-meta{font-size:13px;color:var(--text-2);margin-top:8px;}
.line-arrow{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--text-2);transition:all var(--t);}
.line-item:hover .line-arrow{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateX(3px);}
@media(max-width:768px){
  .line-item{grid-template-columns:auto 1fr;gap:16px;}
  .line-arrow{display:none;}
}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:1.6fr 1fr;gap:40px;align-items:start;}
.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:18px;padding:22px 0;font-size:17px;font-weight:600;cursor:pointer;list-style:none;color:var(--text);transition:color var(--t);}
.faq-item summary:hover{color:var(--brand);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+" ;font-size:24px;font-weight:400;line-height:1;color:var(--brand);transition:transform var(--t);flex:0 0 auto;}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-answer{padding:0 0 24px;color:var(--text-2);font-size:15.2px;line-height:1.9;max-width:760px;}
.faq-side{background:var(--ink-800);border:1px solid var(--line-dark);border-radius:var(--r-card);padding:32px;color:#fff;}
.faq-side h3{font-size:20px;font-weight:800;letter-spacing:-.01em;line-height:1.4;}
.faq-side p{color:#A9A6B4;font-size:14.8px;margin-top:12px;}
.faq-side .btn{margin-top:24px;width:100%;}
@media(max-width:900px){.faq-wrap{grid-template-columns:1fr;gap:28px;}}

/* CTA 订阅带 */
.cta-band{
  background:var(--ink-900);border-radius:var(--r-hero);border:1px solid var(--line-dark);
  padding:clamp(34px,4.4vw,64px);color:#fff;
  display:grid;grid-template-columns:1.15fr 1fr;gap:36px;align-items:center;
  margin-top:clamp(48px,7vw,96px);
}
.cta-band h2{font-size:clamp(24px,3vw,38px);font-weight:800;letter-spacing:-.02em;line-height:1.25;}
.cta-band p{color:#A9A6B4;font-size:15.5px;margin-top:14px;max-width:540px;}
.subscribe{display:flex;gap:10px;flex-wrap:wrap;}
.subscribe input{
  flex:1 1 240px;min-width:0;height:48px;border-radius:var(--pill);
  background:rgba(255,255,255,.07);border:1px solid var(--line-dark);
  padding:0 20px;color:#fff;font-size:14.5px;outline:none;
  transition:border-color var(--t),background-color var(--t),box-shadow var(--t);
}
.subscribe input::placeholder{color:#8F8C9C;}
.subscribe input:focus{border-color:var(--brand);background:rgba(255,255,255,.1);box-shadow:0 0 0 4px rgba(255,122,47,.16);}
.form-hint{font-size:13px;color:#807D8C;margin-top:14px;}
@media(max-width:900px){.cta-band{grid-template-columns:1fr;gap:26px;}}

/* 页脚 */
.site-footer{background:var(--ink-900);color:#CFCBD8;margin-top:clamp(56px,8vw,120px);padding:clamp(48px,6vw,80px) 0 0;border-top:1px solid var(--line-dark);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;font-size:19px;}
.footer-about p{color:#9C99A8;font-size:14.5px;line-height:1.9;max-width:360px;}
.hero-chips{display:flex;flex-wrap:wrap;align-items:center;margin-top:18px;}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;letter-spacing:.01em;}
.footer-links li{margin-bottom:11px;}
.footer-links a,.footer-contact a{color:#A9A6B4;font-size:14.5px;}
.footer-links a:hover,.footer-contact a:hover{color:var(--brand);}
.footer-contact li{display:flex;gap:10px;color:#A9A6B4;font-size:14.5px;margin-bottom:13px;line-height:1.7;}
.footer-contact i{color:var(--brand);margin-top:6px;flex:0 0 auto;}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;border-top:1px solid var(--line-dark);margin-top:46px;padding:22px 0;font-size:13.5px;color:#807D8C;}
.footer-bottom a{color:#A9A6B4;}
.footer-bottom a:hover{color:var(--brand);}
@media(max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr;gap:34px;}}
@media(max-width:640px){.footer-grid{grid-template-columns:1fr;gap:30px;}.footer-bottom{justify-content:flex-start;}}

/* 返回顶部 */
.to-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;
  background:var(--ink-800);color:#fff;border:1px solid var(--line-dark);
  display:inline-flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity var(--t),transform var(--t),visibility var(--t),background-color var(--t);
  z-index:80;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand);border-color:var(--brand);color:#fff;}
@media(max-width:640px){.to-top{right:16px;bottom:16px;width:42px;height:42px;}}

/* 进场动画 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s cubic-bezier(.2,.7,.2,1),transform .6s cubic-bezier(.2,.7,.2,1);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}

/* roulang page: category4 */
:root{
  --brand:#FF7A2F;
  --brand-soft:rgba(255,122,47,.12);
  --secondary:#17C3B2;
  --ink-900:#0E0D12;
  --ink-800:#16151C;
  --ink-700:#22212B;
  --paper:#F6F4F1;
  --card:#FFFFFF;
  --text:#1B1A20;
  --muted:#5C5A66;
  --line:#E5E1DB;
  --line-dark:#2A2833;
  --r-btn:999px;
  --r-card:16px;
  --r-img:12px;
  --r-hero:24px;
  --elev-1:0 1px 2px rgba(20,18,24,.04);
  --elev-2:0 12px 32px -12px rgba(20,18,24,.18);
  --ease:cubic-bezier(.2,.7,.2,1);
  --dur:200ms;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:var(--text);text-decoration:none;transition:color var(--dur) var(--ease),opacity var(--dur) var(--ease)}
a:hover{color:var(--brand)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p{margin:0;font-weight:inherit}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(255,122,47,.22)}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 20px}
@media(min-width:640px){.container{padding:0 32px}}
@media(min-width:1024px){.container{padding:0 48px}}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,244,241,.94);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.header-inner{display:flex;align-items:center;gap:28px}
@media(min-width:901px){
  .header-inner{height:72px;transition:height var(--dur) var(--ease)}
  .site-header.is-scrolled .header-inner{height:60px}
  .site-header.is-scrolled{background:rgba(14,13,18,.86);border-bottom-color:var(--line-dark)}
  .site-header.is-scrolled .brand-text{color:#fff}
  .site-header.is-scrolled .nav-links a{color:rgba(255,255,255,.76)}
  .site-header.is-scrolled .nav-links a:hover{color:#fff}
  .site-header.is-scrolled .nav-links a.active{color:var(--brand)}
  .site-header.is-scrolled .search-form{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.18)}
  .site-header.is-scrolled .search-form:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(255,122,47,.2)}
  .site-header.is-scrolled .search-form i{color:rgba(255,255,255,.65)}
  .site-header.is-scrolled .search-form input{color:#fff}
  .site-header.is-scrolled .search-form input::placeholder{color:rgba(255,255,255,.48)}
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:22px;height:22px;border-radius:7px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand),#FFB27A);
  box-shadow:0 0 0 4px rgba(255,122,47,.14);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:7px;border-radius:2px;
  background:rgba(14,13,18,.85);
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--text);white-space:nowrap}
.nav-search{position:relative;flex:1 1 auto;min-width:0;max-width:640px}
.search-form{
  display:flex;align-items:center;gap:10px;
  height:46px;padding:0 6px 0 18px;
  border-radius:var(--r-btn);background:#fff;border:1px solid var(--line);
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease);
}
.search-form:hover{border-color:#CFC9C0}
.search-form:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(255,122,47,.16)}
.search-form i{color:var(--muted);font-size:14px;flex-shrink:0}
.search-form input{
  flex:1 1 auto;min-width:0;border:0;outline:0;background:transparent;
  font-size:15px;line-height:1.4;padding:0;
}
.search-form input::placeholder{color:#9C9AA6}
.search-btn{
  height:36px;padding:0 20px;border-radius:var(--r-btn);
  background:var(--brand);color:#fff;font-size:14px;font-weight:600;
  flex-shrink:0;transition:filter var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.search-btn:hover{filter:brightness(1.06)}
.search-btn:active{transform:translateY(1px)}
.search-suggest{
  position:absolute;top:calc(100% + 10px);left:0;right:0;z-index:95;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--elev-2);padding:8px;display:none;
}
.nav-search:focus-within .search-suggest{display:block}
.search-suggest span{display:block;padding:6px 14px 2px;font-size:12.5px;color:#9C9AA6;letter-spacing:.06em}
.search-suggest a{display:block;padding:9px 14px;border-radius:10px;font-size:14px;color:var(--muted)}
.search-suggest a:hover{background:var(--brand-soft);color:var(--brand)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;flex-shrink:0}
.nav-links a{
  position:relative;display:inline-block;padding:9px 12px;
  font-size:14.5px;font-weight:500;color:var(--muted);border-radius:10px;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  border-radius:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--brand);font-weight:700}
.nav-links a.active::after{transform:scaleX(1)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--text);
  align-items:center;justify-content:center;font-size:16px;
  margin-left:auto;flex-shrink:0;transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}
.nav-overlay{
  position:fixed;inset:0;z-index:90;background:rgba(14,13,18,.55);
  opacity:0;visibility:hidden;transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);
}
.nav-overlay.is-open{opacity:1;visibility:visible}

/* ============ 通用区块 ============ */
.section{padding:clamp(56px,8vw,120px) 0}
.section-alt{background:#fff}
.section-tight{padding:clamp(40px,5vw,72px) 0}
.kicker{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;font-weight:700;letter-spacing:.14em;
  color:var(--brand);text-transform:uppercase;margin-bottom:14px;
}
.kicker::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;flex-wrap:wrap;margin-bottom:clamp(28px,4vw,52px);
}
.section-title{
  font-size:clamp(24px,2.6vw,36px);font-weight:800;
  letter-spacing:-.02em;line-height:1.22;color:var(--text);
}
.section-title.serif{font-family:"Noto Serif SC","Songti SC","STSong",serif;font-weight:600;letter-spacing:0}
.section-desc{margin-top:12px;font-size:15.5px;color:var(--muted);max-width:560px;line-height:1.85}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ============ 按钮与标签 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),filter var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.btn i{font-size:13px}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{filter:brightness(1.06);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px -12px rgba(255,122,47,.75)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{border-color:rgba(255,255,255,.42);color:#fff;background:transparent}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.12);color:#fff}
.btn-outline{border-color:var(--line);background:#fff;color:var(--text)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);box-shadow:var(--elev-1)}
.btn-on-dark{background:#F6F4F1;color:var(--ink-900)}
.btn-on-dark:hover{background:#fff;color:var(--ink-900);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-lg{height:54px;padding:0 32px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;font-weight:600;color:var(--brand);
  position:relative;width:fit-content;
}
.text-link i{font-size:12px;transition:transform var(--dur) var(--ease)}
.text-link::after{
  content:"";position:absolute;left:0;bottom:-4px;height:1px;width:100%;
  background:currentColor;transform:scaleX(.3);transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.text-link:hover{color:var(--brand)}
.text-link:hover::after{transform:scaleX(1)}
.text-link:hover i{transform:translateX(3px)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-btn);
  font-size:12.5px;line-height:1.5;font-weight:500;
  background:#fff;border:1px solid var(--line);color:var(--muted);
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.tag:hover{border-color:var(--brand);color:var(--brand)}
.tag-brand{background:var(--brand-soft);border-color:rgba(255,122,47,.28);color:#C6551A}
.tag-cyan{background:rgba(23,195,178,.12);border-color:rgba(23,195,178,.3);color:#0E8A7E}
.tag-dark{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.2);color:rgba(255,255,255,.86)}
.hero-chips{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:var(--ink-900);color:#fff;border-radius:0 0 var(--r-hero) var(--r-hero)}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.62}
.hero-shade{
  position:absolute;inset:0;
  background:linear-gradient(100deg,#0E0D12 4%,rgba(14,13,18,.88) 36%,rgba(14,13,18,.4) 70%,rgba(14,13,18,.16) 100%);
}
.hero-shade-bottom{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,13,18,.55) 0%,rgba(14,13,18,.05) 34%,rgba(14,13,18,.82) 100%);
}
.hero-inner{position:relative;z-index:2;max-width:780px;padding:clamp(64px,9vw,110px) 0 clamp(56px,7vw,86px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;letter-spacing:.1em;color:rgba(255,255,255,.74);
  margin-bottom:20px;font-weight:600;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--secondary);box-shadow:0 0 0 4px rgba(23,195,178,.18)}
.hero h1{
  font-size:clamp(34px,5.2vw,58px);line-height:1.08;
  font-weight:800;letter-spacing:-.02em;color:#fff;margin-bottom:20px;
}
.hero-sub{
  font-size:clamp(16px,1.6vw,18px);line-height:1.82;
  color:rgba(255,255,255,.78);max-width:620px;margin-bottom:32px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.hero-chips .tag-dark{font-size:13px;padding:7px 15px;font-variant-numeric:tabular-nums}

/* ============ 数字价值卡 ============ */
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.value-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:clamp(24px,3vw,38px);box-shadow:var(--elev-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.value-card:hover{transform:translateY(-4px);box-shadow:var(--elev-2);border-color:#DAD4CB}
.value-num{
  font-size:clamp(30px,3.4vw,44px);font-weight:800;letter-spacing:-.03em;
  color:var(--ink-900);line-height:1;font-variant-numeric:tabular-nums;
  display:flex;align-items:baseline;gap:8px;
}
.value-num em{font-style:normal;font-size:.44em;font-weight:700;color:var(--brand);letter-spacing:.02em}
.value-card h3{margin:20px 0 10px;font-size:18px;font-weight:700;letter-spacing:-.01em;color:var(--text)}
.value-card p{font-size:14.8px;color:var(--muted);line-height:1.88}

/* ============ 专题 zigzag ============ */
.zigzag{display:flex;flex-direction:column;gap:clamp(52px,7vw,100px)}
.zigzag-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(24px,4.5vw,64px);align-items:center}
.zigzag-row.is-reverse .zigzag-media{order:2}
.zigzag-media{position:relative;overflow:hidden;border-radius:var(--r-card);box-shadow:var(--elev-2)}
.zigzag-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);
  transition:transform 420ms var(--ease);
}
.zigzag-row:hover .zigzag-media img{transform:scale(1.04)}
.badge-float{
  position:absolute;left:16px;top:16px;z-index:2;
  padding:6px 14px;border-radius:var(--r-btn);
  background:rgba(14,13,18,.74);color:#fff;font-size:12.5px;font-weight:600;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  font-variant-numeric:tabular-nums;
}
.zigzag-body h3{font-size:clamp(20px,2.2vw,28px);font-weight:800;letter-spacing:-.02em;line-height:1.32;margin:16px 0 16px;color:var(--text)}
.zigzag-body p{font-size:15.8px;color:var(--muted);line-height:1.9;margin-bottom:20px}
.zigzag-meta{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:22px}

/* ============ 流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.steps::before{content:"";position:absolute;top:27px;left:30px;right:30px;height:1px;background:var(--line);z-index:0}
.step{position:relative;z-index:1}
.step-num{
  width:54px;height:54px;border-radius:50%;background:#fff;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:16px;color:var(--brand);box-shadow:var(--elev-1);
  font-variant-numeric:tabular-nums;transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.step:hover .step-num{border-color:var(--brand);transform:translateY(-3px)}
.step h3{margin:20px 0 8px;font-size:17px;font-weight:700;color:var(--text)}
.step p{font-size:14.6px;color:var(--muted);line-height:1.82}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-accordion{border-top:1px solid var(--line);background:transparent;margin:0}
.faq-accordion .accordion-item{border-bottom:1px solid var(--line);background:transparent}
.faq-accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 4px;font-size:17px;font-weight:600;color:var(--text);
  background:transparent;border:0;line-height:1.6;
  transition:color var(--dur) var(--ease);
}
.faq-accordion .accordion-title::before{display:none;content:none}
.faq-accordion .accordion-title:hover{color:var(--brand)}
.faq-accordion .accordion-content{
  padding:0 4px 26px;border:0;background:transparent;
  color:var(--muted);font-size:15.4px;line-height:1.92;
}
.faq-accordion .accordion-content p{margin:0}
.faq-icon{position:relative;width:20px;height:20px;flex-shrink:0;transition:transform var(--dur) var(--ease)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:background var(--dur) var(--ease);
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-accordion .accordion-item.is-active .faq-icon{transform:rotate(45deg)}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink-900);color:#fff;border-radius:var(--r-hero);
  padding:clamp(40px,5.4vw,76px);
}
.cta-band::after{
  content:"";position:absolute;right:-140px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,47,.28),rgba(255,122,47,0) 66%);
  pointer-events:none;
}
.cta-band-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(28px,4vw,64px);align-items:center}
.cta-band h2{font-size:clamp(24px,3vw,38px);font-weight:800;letter-spacing:-.02em;line-height:1.24;color:#fff;margin-bottom:14px}
.cta-band p{font-size:15.6px;line-height:1.88;color:rgba(255,255,255,.7);max-width:520px}
.subscribe-form{display:flex;gap:12px;flex-wrap:wrap;max-width:520px}
.subscribe-form input{
  flex:1 1 240px;min-width:0;height:48px;padding:0 22px;
  border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.08);color:#fff;outline:0;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease);
}
.subscribe-form input::placeholder{color:rgba(255,255,255,.5)}
.subscribe-form input:focus{border-color:var(--brand);background:rgba(255,255,255,.12);box-shadow:0 0 0 4px rgba(255,122,47,.2)}
.form-note{margin-top:14px;font-size:13px;color:rgba(255,255,255,.52)}
.form-msg{margin-top:12px;font-size:14px;color:var(--secondary);min-height:20px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.68);padding:clamp(52px,7vw,92px) 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-text{color:#fff;font-size:18px}
.footer-about p{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.6);margin-bottom:20px;max-width:360px}
.site-footer h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:20px;letter-spacing:.01em}
.footer-links li{margin-bottom:12px}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.64);border-bottom:1px solid transparent;transition:color var(--dur) var(--ease)}
.footer-links a:hover{color:var(--brand)}
.footer-contact li{display:flex;gap:11px;align-items:flex-start;font-size:14.5px;margin-bottom:14px;color:rgba(255,255,255,.64);line-height:1.75}
.footer-contact i{margin-top:6px;color:var(--brand);flex-shrink:0;font-size:13px}
.footer-bottom{
  margin-top:clamp(36px,5vw,58px);border-top:1px solid var(--line-dark);
  padding:24px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.48);
}
.footer-bottom a{color:var(--brand)}
.footer-bottom a:hover{color:#FFB27A}

/* ============ 返回顶部 ============ */
.backtop{
  position:fixed;right:24px;bottom:28px;z-index:70;
  width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--text);
  display:flex;align-items:center;justify-content:center;font-size:15px;
  box-shadow:var(--elev-2);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all var(--dur) var(--ease);
}
.backtop.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.backtop:hover{background:var(--brand);border-color:var(--brand);color:#fff}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 620ms var(--ease),transform 620ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media(max-width:1023px){
  .value-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr;gap:32px 20px}
  .steps::before{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .cta-band-inner{grid-template-columns:1fr}
}
@media(max-width:900px){
  .header-inner{flex-wrap:wrap;padding:12px 0;row-gap:12px;height:auto}
  .brand{order:1}
  .nav-toggle{display:flex;order:2}
  .nav-search{order:3;flex:1 1 100%;max-width:none;width:100%}
  .nav-links{
    order:4;position:fixed;top:0;right:0;z-index:95;
    height:100vh;width:min(320px,84vw);
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:6px;padding:100px 24px 40px;margin-left:0;
    background:var(--ink-900);box-shadow:-24px 0 48px rgba(0,0,0,.32);
    transform:translateX(104%);transition:transform 260ms var(--ease);
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-links a{color:rgba(255,255,255,.8);font-size:16px;padding:14px 12px;border-radius:10px}
  .nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,.07)}
  .nav-links a::after{left:12px;right:auto;width:18px;bottom:9px}
}
@media(max-width:767px){
  .zigzag-row{grid-template-columns:1fr;gap:22px}
  .zigzag-row.is-reverse .zigzag-media{order:0}
  .hero-inner{padding:clamp(48px,12vw,72px) 0 clamp(44px,10vw,64px)}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .section-head{align-items:flex-start}
}
@media(max-width:639px){
  .value-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:10px}
  .cta-band{border-radius:20px}
  .subscribe-form{flex-direction:column}
  .subscribe-form input,.subscribe-form .btn{width:100%}
  .backtop{right:16px;bottom:20px}
}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none}
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
}