/* roulang page: index */
:root{
  --bg-0:#05090F;
  --bg-1:#0A1420;
  --panel:#0E1A28;
  --panel-2:#0B1622;
  --c-primary:#17C9B4;
  --c-primary-dark:#0E8F82;
  --glow:rgba(23,201,180,.42);
  --c-accent:#FFB44C;
  --c-accent-light:#FFD08A;
  --c-violet:#6E7BFF;
  --t-1:#E8F1F8;
  --t-2:#9DB0C4;
  --t-3:#62788E;
  --line:rgba(120,200,255,.14);
  --line-strong:rgba(23,201,180,.45);
  --r-lg:20px;
  --r-md:14px;
  --r-sm:12px;
  --shadow-card:0 12px 32px rgba(0,0,0,.40);
  --shadow-hover:0 20px 48px rgba(0,0,0,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"DIN Alternate","Roboto Mono",ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0;color:var(--t-1);}
h1{font-size:44px;line-height:1.22;}
h2{font-size:30px;line-height:1.3;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
p{margin:0;}
a{color:var(--t-2);text-decoration:none;transition:color 220ms var(--ease);}
a:hover,a:focus{color:var(--c-primary);}
img{max-width:100%;display:block;border-style:none;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:16px;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:rgba(23,201,180,.3);color:#fff;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.num{font-family:var(--font-num);font-weight:700;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0;position:relative;}
.section-alt{background:var(--bg-1);}
.section-head{margin-bottom:40px;}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.section-sub{margin-top:12px;font-size:14px;color:var(--t-2);line-height:1.7;max-width:720px;}
.section-more{font-size:14px;color:var(--t-2);display:inline-flex;align-items:center;gap:6px;white-space:nowrap;}
.section-more::after{content:"→";transition:transform 220ms var(--ease);}
.section-more:hover::after{transform:translateX(4px);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:999px;
  padding:13px 28px;font-size:15px;font-weight:600;line-height:1;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),background 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--c-primary);color:#04211E;
  box-shadow:0 8px 24px var(--glow);
}
.btn-primary:hover,.btn-primary:focus{
  background:#26DCC5;color:#04211E;transform:translateY(-2px);
  box-shadow:0 14px 34px rgba(23,201,180,.55);
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px var(--glow);}
.btn-ghost{
  background:rgba(18,32,50,.62);color:var(--t-1);
  border-color:var(--line);
}
.btn-ghost:hover,.btn-ghost:focus{
  border-color:var(--line-strong);color:var(--c-primary);transform:translateY(-2px);
  background:rgba(23,201,180,.10);
}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:9px 18px;font-size:13px;}
.btn-lg{padding:16px 34px;font-size:16px;}
.btn-block{width:100%;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;line-height:1;font-weight:600;letter-spacing:.02em;
}
.badge-primary{background:rgba(23,201,180,.16);color:#5BE7D4;border:1px solid rgba(23,201,180,.32);}
.badge-accent{background:var(--c-accent);color:#3A2400;}
.badge-violet{background:rgba(110,123,255,.16);color:#A7AFFF;border:1px solid rgba(110,123,255,.34);}
.badge-ghost{background:rgba(120,200,255,.08);color:var(--t-2);border:1px solid var(--line);}

/* ---------- 玻璃拟态 ---------- */
.glass{
  background:rgba(18,32,50,.62);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,13,22,.94);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:box-shadow 220ms var(--ease),background 220ms var(--ease);
}
.site-header.is-stuck{box-shadow:0 14px 36px rgba(0,0,0,.55);background:rgba(7,13,22,.86);}
.topbar-inner{
  display:flex;align-items:center;gap:20px;height:56px;
  transition:height 220ms var(--ease);
}
.site-header.is-stuck .topbar-inner{height:52px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{font-size:20px;font-weight:700;color:var(--t-1);letter-spacing:0;}
.brand-mark .dot{color:var(--c-primary);}
.brand-sub{
  font-size:12px;color:var(--t-3);line-height:1.2;
  border-left:1px solid var(--line);padding-left:10px;
}
.search-box{
  position:relative;flex:1 1 auto;max-width:420px;min-width:0;
}
.search-box input{
  width:100%;height:38px;border-radius:999px;
  background:var(--panel-2);border:1px solid var(--line);
  color:var(--t-1);padding:0 46px 0 18px;font-size:13px;
  transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.search-box input::placeholder{color:var(--t-3);}
.search-box input:focus{
  outline:none;border-color:var(--c-primary);
  box-shadow:0 0 0 4px rgba(23,201,180,.14);
}
.search-box button{
  position:absolute;right:4px;top:4px;
  width:30px;height:30px;border-radius:50%;border:none;
  background:rgba(23,201,180,.16);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  transition:background 220ms var(--ease),color 220ms var(--ease);
}
.search-box button:hover{background:var(--c-primary);color:#04211E;}
.search-box svg{width:15px;height:15px;}
.topbar-right{display:flex;align-items:center;gap:12px;flex:0 0 auto;margin-left:auto;}
.hot-tag{
  height:26px;padding:0 12px;border-radius:999px;
  border:1px solid var(--line);color:var(--t-2);
  font-size:12px;display:inline-flex;align-items:center;
  transition:all 220ms var(--ease);
}
.hot-tag:hover{background:rgba(23,201,180,.12);color:var(--c-primary);border-color:var(--line-strong);}
.hotline{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--t-2);}
.hotline .num{font-size:15px;color:var(--t-1);}
.hotline svg{width:14px;height:14px;color:var(--c-primary);}
.nav-burger{
  display:none;width:38px;height:38px;border-radius:10px;
  border:1px solid var(--line);background:rgba(18,32,50,.6);
  color:var(--t-1);align-items:center;justify-content:center;
}
.nav-burger span{display:block;width:16px;height:2px;background:currentColor;position:relative;}
.nav-burger span::before,.nav-burger span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;transition:transform 220ms var(--ease);
}
.nav-burger span::before{top:-5px;}
.nav-burger span::after{top:5px;}

.channel-bar{border-top:1px solid var(--line);background:rgba(10,20,32,.6);}
.channel-inner{display:flex;align-items:center;gap:24px;height:46px;}
.channel-list{display:flex;align-items:center;gap:22px;flex:0 0 auto;}
.channel-list a{
  position:relative;font-size:15px;color:var(--t-2);padding:12px 0;display:inline-block;
}
.channel-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;border-radius:2px;
  background:var(--c-primary);box-shadow:0 0 10px var(--glow);
  transform:scaleX(0);transform-origin:left;transition:transform 220ms var(--ease);
}
.channel-list a:hover{color:var(--t-1);}
.channel-list a:hover::after{transform:scaleX(1);}
.channel-list a.active{color:var(--t-1);}
.channel-list a.active::after{transform:scaleX(1);}
.trend-strip{
  display:flex;align-items:center;gap:10px;margin-left:auto;
  overflow:hidden;position:relative;max-width:420px;
}
.trend-strip .trend-label{font-size:12px;color:var(--c-violet);flex:0 0 auto;}
.trend-scroll{
  display:flex;gap:10px;overflow-x:auto;white-space:nowrap;
  scrollbar-width:none;-ms-overflow-style:none;
  animation:trendMove 26s linear infinite;
}
.trend-scroll::-webkit-scrollbar{display:none;}
.trend-strip:hover .trend-scroll{animation-play-state:paused;}
.trend-scroll a{
  font-size:12px;color:var(--t-2);border:1px solid var(--line);
  border-radius:999px;padding:3px 12px;
}
.trend-scroll a:hover{background:rgba(23,201,180,.12);color:var(--c-primary);border-color:var(--line-strong);}
@keyframes trendMove{0%{transform:translateX(0);}100%{transform:translateX(-50%);}}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:90;
  opacity:0;visibility:hidden;transition:opacity 220ms var(--ease),visibility 220ms var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:300px;max-width:86vw;z-index:95;
  background:rgba(10,20,32,.92);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform 260ms var(--ease);
  padding:24px 20px;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{
  width:34px;height:34px;border-radius:10px;border:1px solid var(--line);
  background:transparent;color:var(--t-1);font-size:18px;line-height:1;
}
.drawer-nav a{
  display:block;padding:13px 0;font-size:15px;color:var(--t-2);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--c-primary);}
.drawer-block-title{font-size:12px;color:var(--t-3);margin:22px 0 10px;}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.drawer-tags a{font-size:12px;border:1px solid var(--line);border-radius:999px;padding:4px 12px;color:var(--t-2);}
.drawer .btn{margin-top:22px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(180deg,rgba(5,9,15,.62) 0%,rgba(5,9,15,.86) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:linear-gradient(90deg,transparent,rgba(23,201,180,.6),rgba(255,180,76,.5),transparent);
}
.hero-inner{padding:88px 0 76px;}
.hero-card{padding:36px 34px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;color:#5BE7D4;background:rgba(23,201,180,.12);
  border:1px solid rgba(23,201,180,.28);border-radius:999px;padding:5px 14px;
}
.hero h1{margin:20px 0 0;}
.hero h1 .hl{color:var(--c-primary);}
.hero-lead{margin-top:16px;font-size:17px;color:var(--t-2);line-height:1.8;max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:7px;
  height:32px;padding:0 14px;border-radius:999px;
  background:rgba(18,32,50,.7);border:1px solid var(--line);
  font-size:13px;color:var(--t-2);
}
.hero-badge svg{width:14px;height:14px;color:var(--c-primary);}
.hero-visual{position:relative;}
.hero-metrics{
  margin-top:36px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
}
.hero-metric{background:rgba(10,20,32,.9);padding:20px 18px;}
.hero-metric .v{font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--c-accent);line-height:1.1;}
.hero-metric .v small{font-size:15px;margin-left:2px;color:var(--c-accent-light);}
.hero-metric .k{font-size:13px;color:var(--t-3);margin-top:6px;}

/* ---------- 楼梯式优惠阶梯 ---------- */
.ladder{margin-top:8px;}
.ladder-item{position:relative;padding-left:34px;margin-bottom:26px;}
.ladder-item:last-child{margin-bottom:0;}
.ladder-rail{
  position:absolute;left:9px;top:6px;bottom:-26px;width:1px;
  background:linear-gradient(180deg,var(--line-strong),var(--line));
}
.ladder-item:last-child .ladder-rail{bottom:6px;}
.ladder-dot{
  position:absolute;left:3px;top:26px;width:13px;height:13px;border-radius:50%;
  background:var(--c-primary);box-shadow:0 0 0 4px rgba(23,201,180,.16);
}
.ladder-card{
  position:relative;overflow:hidden;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 30px;box-shadow:var(--shadow-card);
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.ladder-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.ladder-num{
  position:absolute;right:22px;top:8px;
  font-family:var(--font-num);font-size:76px;font-weight:700;line-height:1;
  color:rgba(232,241,248,.07);pointer-events:none;
}
.ladder-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.ladder-top h3{font-size:20px;}
.ladder-cond{margin-top:10px;font-size:14px;color:var(--t-2);}
.ladder-perks{margin-top:18px;display:grid;grid-template-columns:repeat(2,1fr);gap:10px 24px;}
.ladder-perks li{display:flex;gap:9px;font-size:14px;color:var(--t-2);line-height:1.7;}
.ladder-perks li svg{width:15px;height:15px;flex:0 0 auto;margin-top:6px;color:var(--c-primary);}
.ladder-item[data-level="1"] .ladder-card{border-left:3px solid var(--c-primary);}
.ladder-item[data-level="2"] .ladder-card{border-left:3px solid var(--c-accent);}
.ladder-item[data-level="3"] .ladder-card{border-left:3px solid var(--c-violet);}
.ladder-item[data-level="2"]{margin-left:28px;}
.ladder-item[data-level="3"]{margin-left:56px;}

/* ---------- 套餐对比 ---------- */
.table-scroll{overflow-x:auto;scrollbar-width:thin;}
.plan-table{width:100%;min-width:840px;border-collapse:separate;border-spacing:0;}
.plan-table th,.plan-table td{
  padding:16px 18px;text-align:left;font-size:14px;color:var(--t-2);
  border-bottom:1px solid var(--line);
}
.plan-table thead th{
  vertical-align:top;background:var(--panel);position:sticky;top:0;z-index:2;
}
.plan-table thead th:first-child{border-top-left-radius:var(--r-lg);}
.plan-table thead th:last-child{border-top-right-radius:var(--r-lg);}
.plan-table tbody tr:nth-child(odd) td{background:rgba(14,26,40,.55);}
.plan-table tbody tr:nth-child(even) td{background:rgba(10,20,32,.55);}
.plan-table tbody td:first-child{color:var(--t-1);font-weight:500;}
.plan-col{border-left:1px dashed var(--line);}
.plan-col.is-featured{
  background:rgba(23,201,180,.07);
  box-shadow:inset 0 0 0 1px var(--line-strong);
  border-radius:var(--r-lg);
  transform:translateY(-12px);
}
.plan-name{display:block;font-size:16px;color:var(--t-1);font-weight:600;}
.plan-price{
  display:flex;align-items:baseline;gap:4px;margin-top:10px;
  font-family:var(--font-num);font-weight:700;color:var(--c-accent);
  font-size:36px;line-height:1.05;
}
.plan-price i{font-style:normal;font-size:18px;margin-right:2px;}
.plan-cycle{font-family:var(--font-cn);font-size:12px;color:var(--t-3);font-weight:400;}
.plan-tag{margin-top:10px;display:block;}
.mark-yes,.mark-no{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:50%;}
.mark-yes{background:var(--c-primary);color:#04211E;}
.mark-yes svg{width:11px;height:11px;}
.mark-no{color:var(--t-3);font-size:18px;line-height:1;}
.plan-table tfoot td{border-bottom:none;padding-top:22px;}

/* ---------- 限时入口 ---------- */
.limited{
  position:relative;overflow:hidden;
  background:linear-gradient(90deg,rgba(10,20,32,.96),rgba(14,26,40,.96)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.limited::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
}
.limited-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:44px 0;flex-wrap:wrap;}
.limited-text h2{font-size:26px;}
.limited-text p{margin-top:10px;font-size:14px;color:var(--t-2);max-width:560px;}
.countdown{display:flex;gap:12px;margin-top:20px;}
.cd-box{
  width:56px;height:56px;border-radius:var(--r-sm);
  background:rgba(18,32,50,.62);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
}
.cd-box .n{font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--t-1);line-height:1;}
.cd-box .l{font-size:11px;color:var(--t-3);margin-top:4px;}
.cd-box.sec .n{animation:blink 1s steps(2,start) infinite;color:var(--c-accent);}
@keyframes blink{50%{opacity:.45;}}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.news-card.is-lead{grid-column:span 2;flex-direction:row;}
.news-cover{position:relative;display:block;overflow:hidden;background:var(--bg-1);}
.news-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 260ms var(--ease);}
.news-card:hover .news-cover img{transform:scale(1.04);}
.news-card.is-lead .news-cover{flex:0 0 46%;}
.news-card.is-lead .news-cover img{height:100%;aspect-ratio:auto;min-height:210px;}
.news-cover .badge{position:absolute;left:12px;bottom:12px;}
.news-body{padding:20px 22px 18px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-title{
  font-size:17px;font-weight:600;color:var(--t-1);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card.is-lead .news-title{font-size:20px;}
.news-title:hover{color:var(--c-primary);}
.news-abstract{
  margin-top:10px;font-size:14px;color:var(--t-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:16px;display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--t-3);
}
.news-meta .sep{color:var(--line);}
.news-meta .more{margin-left:auto;color:var(--c-primary);font-size:13px;}
.news-empty{
  min-height:220px;border:1px dashed var(--line);border-radius:var(--r-lg);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  color:var(--t-3);font-size:14px;background:rgba(14,26,40,.5);
}
.news-empty svg{width:48px;height:48px;color:var(--t-3);}
.news-foot{margin-top:32px;display:flex;justify-content:center;}

/* ---------- 表单 ---------- */
.form-card{padding:34px 32px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--t-2);margin-bottom:8px;}
.field label .req{color:var(--c-accent);}
.field-input,.field-select,.field-textarea{
  width:100%;border-radius:var(--r-sm);
  background:var(--panel-2);border:1px solid var(--line);
  color:var(--t-1);padding:13px 16px;font-size:15px;
  transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease);
  -webkit-appearance:none;appearance:none;
}
.field-textarea{min-height:110px;resize:vertical;line-height:1.7;}
.field-select{
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239DB0C4' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;background-size:16px;
  padding-right:40px;
}
.field-input:focus,.field-select:focus,.field-textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(23,201,180,.16);
}
.field-input.error,.field-select.error,.field-textarea.error{border-color:#FF6B6B;box-shadow:0 0 0 4px rgba(255,107,107,.14);}
.field-error{display:none;margin-top:6px;font-size:12px;color:#FF6B6B;}
.field-error.show{display:block;}
.chip-group{display:flex;flex-wrap:wrap;gap:10px;}
.chip{position:relative;display:inline-flex;}
.chip input{position:absolute;opacity:0;width:0;height:0;}
.chip span{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);font-size:13px;color:var(--t-2);
  transition:all 220ms var(--ease);cursor:pointer;
}
.chip input:checked + span{background:rgba(23,201,180,.14);border-color:var(--line-strong);color:var(--c-primary);}
.chip input:focus-visible + span{outline:2px solid var(--c-primary);outline-offset:2px;}
.checkbox{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--t-2);cursor:pointer;}
.checkbox input{position:absolute;opacity:0;width:0;height:0;}
.checkbox .box{
  width:18px;height:18px;border-radius:5px;border:1px solid var(--line);
  flex:0 0 auto;margin-top:3px;position:relative;background:var(--panel-2);
  transition:all 220ms var(--ease);
}
.checkbox input:checked + .box{background:var(--c-primary);border-color:var(--c-primary);}
.checkbox input:checked + .box::after{
  content:"";position:absolute;left:5px;top:1px;width:5px;height:10px;
  border:2px solid #04211E;border-top:0;border-left:0;transform:rotate(45deg);
}
.form-note{margin-top:14px;font-size:12px;color:var(--t-3);}
.form-success{
  display:none;margin-top:16px;padding:14px 16px;border-radius:var(--r-sm);
  background:rgba(23,201,180,.12);border:1px solid rgba(23,201,180,.3);
  color:#5BE7D4;font-size:14px;
}
.form-success.show{display:block;}
.side-panel{padding:30px 28px;height:100%;}
.side-panel h3{font-size:18px;}
.steps{margin-top:20px;}
.steps li{display:flex;gap:14px;padding-bottom:20px;position:relative;}
.steps li:last-child{padding-bottom:0;}
.steps li::before{
  content:"";position:absolute;left:13px;top:30px;bottom:0;width:1px;background:var(--line);
}
.steps li:last-child::before{display:none;}
.steps .idx{
  width:27px;height:27px;border-radius:50%;flex:0 0 auto;
  background:rgba(23,201,180,.14);border:1px solid var(--line-strong);
  color:var(--c-primary);font-family:var(--font-num);font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.steps .txt{font-size:14px;color:var(--t-2);line-height:1.7;}
.steps .txt strong{display:block;color:var(--t-1);font-weight:600;font-size:15px;margin-bottom:2px;}
.side-info{
  margin-top:24px;padding-top:22px;border-top:1px solid var(--line);
  display:grid;gap:12px;
}
.side-info div{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--t-2);}
.side-info svg{width:16px;height:16px;color:var(--c-primary);flex:0 0 auto;}
.side-info .num{font-size:16px;color:var(--t-1);}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:none;border:none;text-align:left;
  display:flex;align-items:center;gap:16px;
  padding:22px 4px 22px 0;font-size:17px;font-weight:600;color:var(--t-1);
  transition:color 220ms var(--ease);
}
.faq-q:hover{color:var(--c-primary);}
.faq-q .bar{
  position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-primary);
  transform:scaleY(0);transform-origin:top;transition:transform 260ms var(--ease);
}
.faq-item{position:relative;padding-left:0;transition:padding-left 260ms var(--ease);}
.faq-item.open{padding-left:18px;}
.faq-item.open .faq-q{color:var(--t-1);}
.faq-item.open .faq-q .bar{transform:scaleY(1);}
.faq-q .plus{
  margin-left:auto;width:18px;height:18px;position:relative;flex:0 0 auto;
  transition:transform 260ms var(--ease);color:var(--c-primary);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-q .plus::before{left:0;right:0;top:8px;height:2px;}
.faq-q .plus::after{top:0;bottom:0;left:8px;width:2px;}
.faq-item.open .faq-q .plus{transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height 260ms var(--ease);
}
.faq-a p{padding:0 42px 24px 0;font-size:15px;line-height:1.85;color:var(--t-2);}

/* ---------- CTA 条 ---------- */
.cta-bar{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:linear-gradient(90deg,rgba(10,20,32,.94),rgba(14,26,40,.9)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  border:1px solid var(--line);
  padding:40px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-bar::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
}
.cta-bar h2{font-size:26px;}
.cta-bar p{margin-top:10px;font-size:14px;color:var(--t-2);max-width:520px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#070D16;border-top:1px solid var(--line);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand-mark{font-size:20px;}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--t-3);line-height:1.8;max-width:300px;}
.footer-title{font-size:14px;color:var(--t-1);font-weight:600;margin-bottom:18px;}
.footer-links li{margin-bottom:12px;}
.footer-links a{position:relative;font-size:14px;color:var(--t-3);padding-left:0;transition:color 220ms var(--ease),padding-left 220ms var(--ease);}
.footer-links a::before{
  content:"";position:absolute;left:-10px;top:50%;transform:translateY(-50%);
  width:2px;height:12px;background:var(--c-primary);opacity:0;transition:opacity 220ms var(--ease);
}
.footer-links a:hover{color:var(--t-1);padding-left:8px;}
.footer-links a:hover::before{opacity:1;left:-2px;}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--t-3);margin-bottom:12px;}
.footer-contact svg{width:15px;height:15px;color:var(--c-primary);flex:0 0 auto;}
.footer-contact .num{font-size:16px;color:var(--t-1);}
.qr-box{
  width:96px;height:96px;border-radius:var(--r-md);border:1px solid var(--line);
  background:rgba(14,26,40,.8);display:flex;align-items:center;justify-content:center;
  text-align:center;font-size:12px;color:var(--t-3);line-height:1.5;margin-top:16px;
}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--t-3);
}
.footer-bottom a{color:var(--t-3);}
.footer-bottom a:hover{color:var(--c-primary);}

/* ---------- 进场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 400ms var(--ease),transform 400ms var(--ease);}
.reveal.on{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  h1{font-size:38px;}
  h2{font-size:27px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .news-card.is-lead{grid-column:span 2;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .trend-strip{max-width:280px;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  .search-box{max-width:260px;}
  .hot-tag{display:none;}
  .channel-list{gap:18px;}
  .channel-list a{font-size:14px;}
  .trend-strip{display:none;}
  .hero-inner{padding:64px 0 56px;}
  .hero-metrics{grid-template-columns:repeat(2,1fr);}
  .ladder-perks{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  body{font-size:15px;}
  .container{padding:0 16px;}
  h1{font-size:28px;}
  h2{font-size:22px;}
  h3{font-size:18px;}
  .section{padding:56px 0;}
  .topbar-inner{height:52px;gap:12px;}
  .brand-sub{display:none;}
  .search-box{display:none;}
  .hotline{display:none;}
  .nav-burger{display:flex;}
  .topbar-right .btn{display:none;}
  .channel-inner{height:auto;padding:0;overflow:hidden;}
  .channel-list{
    gap:16px;overflow-x:auto;white-space:nowrap;padding:0 0 2px;
    scrollbar-width:none;-ms-overflow-style:none;width:100%;
  }
  .channel-list::-webkit-scrollbar{display:none;}
  .channel-list a{padding:11px 0;font-size:14px;}
  .hero-inner{padding:48px 0 44px;}
  .hero-card{padding:24px 20px;}
  .hero-lead{font-size:15px;}
  .hero-actions .btn{flex:1 1 auto;}
  .hero-metrics{grid-template-columns:repeat(2,1fr);}
  .hero-metric{padding:16px 14px;}
  .hero-metric .v{font-size:24px;}
  .ladder-item{padding-left:24px;}
  .ladder-item[data-level="2"]{margin-left:12px;}
  .ladder-item[data-level="3"]{margin-left:24px;}
  .ladder-card{padding:22px 20px;}
  .ladder-num{font-size:56px;right:16px;}
  .limited-inner{padding:32px 0;gap:22px;}
  .limited-text h2{font-size:21px;}
  .cd-box{width:44px;height:44px;}
  .cd-box .n{font-size:18px;}
  .news-grid{grid-template-columns:1fr;gap:18px;}
  .news-card.is-lead{grid-column:span 1;flex-direction:column;}
  .news-card.is-lead .news-cover{flex:0 0 auto;}
  .news-card.is-lead .news-cover img{aspect-ratio:16/9;min-height:0;}
  .news-card.is-lead .news-title{font-size:18px;}
  .form-card{padding:24px 20px;}
  .side-panel{padding:24px 20px;margin-top:20px;}
  .faq-q{font-size:16px;padding:18px 0;}
  .faq-a p{padding-right:16px;}
  .cta-bar{padding:28px 22px;}
  .cta-bar h2{font-size:21px;}
  .cta-bar .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .hero-metrics{grid-template-columns:1fr 1fr;}
  .hero-badges{gap:8px;}
  .hero-badge{font-size:12px;padding:0 11px;}
  .plan-table{min-width:720px;}
}

/* roulang page: article */
:root{
  --bg-0:#05090F;
  --bg-1:#0A1420;
  --panel:#0E1A28;
  --panel-2:#0B1622;
  --c-primary:#17C9B4;
  --c-primary-dark:#0E8F82;
  --glow:rgba(23,201,180,.42);
  --c-accent:#FFB44C;
  --c-accent-soft:#FFD08A;
  --c-violet:#6E7BFF;
  --t-1:#E8F1F8;
  --t-2:#9DB0C4;
  --t-3:#62788E;
  --line:rgba(120,200,255,.14);
  --line-strong:rgba(23,201,180,.45);
  --r-lg:20px;
  --r-md:14px;
  --r-sm:12px;
  --shadow-card:0 12px 32px rgba(0,0,0,.40);
  --shadow-hover:0 20px 48px rgba(0,0,0,.55);
  --shadow-glow:0 8px 24px var(--glow);
  --ease:220ms cubic-bezier(.2,.7,.3,1);
  --container:1200px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"DIN Alternate","Roboto Mono",ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t-1);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;border-style:none;}
a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease);}
button,input,select,textarea{font-family:inherit;font-size:100%;}
ul,ol{margin:0;padding:0;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0;color:var(--t-1);line-height:1.3;}
p{margin:0;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.num{font-family:var(--font-num);font-weight:700;letter-spacing:.02em;font-size:1.1em;}
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s ease,transform .4s ease;}
.reveal.in{opacity:1;transform:none;}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{background:var(--c-primary);color:#04201C;box-shadow:var(--shadow-glow);}
.btn-primary:hover{background:#1FD9C2;transform:translateY(-2px);box-shadow:0 14px 34px var(--glow);color:#04201C;}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px var(--glow);}
.btn-ghost{background:rgba(23,201,180,.07);border-color:var(--line-strong);color:var(--t-1);}
.btn-ghost:hover{background:rgba(23,201,180,.16);border-color:var(--c-primary);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--c-primary);}
.link-arrow svg{width:15px;height:15px;transition:transform var(--ease);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(5,9,15,.92);
  transition:background var(--ease),box-shadow var(--ease),backdrop-filter var(--ease);
}
.site-header.is-stuck{
  background:rgba(8,15,25,.82);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:0 12px 30px rgba(0,0,0,.45);
  border-bottom:1px solid var(--line);
}
.topbar{border-bottom:1px solid var(--line);}
.topbar-inner{
  display:flex;align-items:center;gap:20px;height:56px;
  transition:height var(--ease);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{font-family:var(--font-num);font-size:22px;font-weight:800;letter-spacing:-.01em;color:var(--t-1);}
.brand-mark .dot{color:var(--c-primary);}
.brand-sub{
  font-size:12px;color:var(--t-3);line-height:1.2;padding-left:10px;
  border-left:1px solid var(--line);white-space:nowrap;
}
.search-pill{
  position:relative;display:flex;align-items:center;
  flex:0 1 400px;height:40px;padding:0 4px 0 16px;
  background:var(--panel-2);border:1px solid var(--line);border-radius:999px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-pill:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(23,201,180,.16);}
.search-pill input{
  flex:1;min-width:0;height:100%;background:transparent;border:0;color:var(--t-1);
  font-size:14px;outline:none;
}
.search-pill input::placeholder{color:var(--t-3);}
.search-pill button{
  width:32px;height:32px;border:0;border-radius:50%;background:rgba(23,201,180,.14);
  color:var(--c-primary);display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background var(--ease),color var(--ease);
}
.search-pill button:hover{background:var(--c-primary);color:#04201C;}
.search-pill svg{width:15px;height:15px;}
.topbar-right{display:flex;align-items:center;gap:14px;margin-left:auto;}
.hot-tags{display:flex;align-items:center;gap:8px;}
.chip{
  font-size:12px;color:var(--t-2);padding:4px 10px;border-radius:999px;
  border:1px solid var(--line);white-space:nowrap;transition:all var(--ease);
}
.chip:hover{background:rgba(23,201,180,.12);border-color:var(--line-strong);color:var(--c-primary);}
.hotline{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--t-2);white-space:nowrap;}
.hotline svg{width:15px;height:15px;color:var(--c-primary);}
.hotline .num{color:var(--c-accent);font-size:14px;}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:12px;
  background:var(--panel-2);color:var(--t-1);cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle svg{width:18px;height:18px;}
.search-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:12px;background:var(--panel-2);color:var(--t-1);cursor:pointer;align-items:center;justify-content:center;}
.search-toggle svg{width:17px;height:17px;}

.channel-bar{background:rgba(10,20,32,.7);border-bottom:1px solid var(--line);}
.channel-inner{display:flex;align-items:center;gap:28px;height:46px;transition:height var(--ease);}
.channel-list{display:flex;align-items:center;gap:22px;list-style:none;flex:0 0 auto;}
.channel-list li{list-style:none;}
.channel-list a{position:relative;display:inline-block;font-size:15px;color:var(--t-2);padding:11px 0;}
.channel-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:5px;height:2px;border-radius:2px;
  background:var(--c-primary);box-shadow:0 0 10px var(--glow);
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.channel-list a:hover{color:var(--t-1);}
.channel-list a:hover::after,.channel-list a.active::after{transform:scaleX(1);}
.channel-list a.active{color:var(--t-1);font-weight:600;}
.trend-strip{display:flex;align-items:center;gap:12px;flex:1;min-width:0;justify-content:flex-end;}
.trend-label{
  font-size:12px;color:var(--c-violet);border:1px solid rgba(110,123,255,.42);
  border-radius:999px;padding:2px 10px;white-space:nowrap;
}
.trend-scroll{
  display:flex;gap:16px;overflow-x:auto;white-space:nowrap;min-width:0;
  scrollbar-width:none;-webkit-overflow-scrolling:touch;
  mask-image:linear-gradient(90deg,transparent,#000 14px,#000 calc(100% - 20px),transparent);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 14px,#000 calc(100% - 20px),transparent);
}
.trend-scroll::-webkit-scrollbar{display:none;}
.trend-scroll a{font-size:13px;color:var(--t-3);}
.trend-scroll a:hover{color:var(--c-primary);}
.site-header.is-stuck .topbar-inner{height:52px;}
.site-header.is-stuck .brand-sub{display:none;}
.site-header.is-stuck .hot-tags{display:none;}
.site-header.is-stuck .channel-inner{height:40px;}
.site-header.is-stuck .trend-strip{display:none;}
.site-header.is-stuck .channel-list a{padding:9px 0;}

/* drawer */
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);z-index:200;
  background:rgba(10,20,32,.92);backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  border-left:1px solid var(--line);padding:20px 22px 32px;
  transform:translateX(104%);transition:transform 260ms cubic-bezier(.2,.7,.3,1);
  overflow-y:auto;
}
.nav-drawer.open{transform:translateX(0);}
.drawer-mask{position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:190;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);}
.drawer-close{width:34px;height:34px;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--t-2);font-size:20px;line-height:1;cursor:pointer;}
.drawer-close:hover{color:var(--c-primary);border-color:var(--line-strong);}
.drawer-links{list-style:none;margin:18px 0 0;}
.drawer-links li{border-bottom:1px solid var(--line);}
.drawer-links a{display:block;padding:14px 2px;font-size:15px;color:var(--t-2);}
.drawer-links a:hover,.drawer-links a.active{color:var(--c-primary);}
.drawer-title{font-size:12px;color:var(--t-3);margin:24px 0 12px;letter-spacing:.06em;}
.drawer-chips{display:flex;flex-wrap:wrap;gap:8px;}
.drawer-cta{margin-top:26px;}

/* ============ article layout ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t-3);padding:26px 0 0;}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:var(--t-3);opacity:.55;}
.breadcrumb .current{color:var(--t-1);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.article-head{padding:26px 0 0;}
.article-head .kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--c-primary);margin-bottom:14px;}
.article-head .kicker .dot{width:6px;height:6px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 10px var(--glow);}
.article-head h1{font-size:clamp(28px,4vw,42px);line-height:1.24;font-weight:700;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;margin-top:20px;font-size:13px;color:var(--t-3);}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta svg{width:14px;height:14px;color:var(--c-primary);}
.article-meta .cat{color:var(--c-primary);}
.article-divider{margin:26px 0 0;height:1px;background:linear-gradient(90deg,var(--line-strong),transparent);}

.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;padding:44px 0 0;}
.article-main{max-width:760px;}

.article-body{font-size:17px;line-height:1.9;color:#D5E2EE;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.25em;}
.article-body h2{font-size:24px;margin:40px 0 16px;scroll-margin-top:120px;}
.article-body h3{font-size:20px;margin:28px 0 14px;font-weight:600;scroll-margin-top:120px;}
.article-body h4{font-size:17px;margin:22px 0 12px;}
.article-body ul,.article-body ol{padding-left:1.2em;margin:0 0 1.4em;}
.article-body li{margin-bottom:.5em;}
.article-body li::marker{color:var(--c-primary);}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;border-left:3px solid var(--c-primary);
  background:rgba(23,201,180,.06);border-radius:0 12px 12px 0;color:var(--t-2);font-size:16px;
}
.article-body img{margin:24px auto;border-radius:14px;border:1px solid var(--line);}
.article-body figure{margin:26px 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--t-3);margin-top:12px;}
.article-body a{color:var(--c-primary);border-bottom:1px solid rgba(23,201,180,.4);}
.article-body a:hover{border-bottom-color:var(--c-primary);}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;border-top:1px solid var(--line);}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);}
.article-body th{color:var(--t-1);font-weight:600;background:rgba(255,255,255,.03);}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.022);}
.article-body code{font-family:var(--font-num);background:rgba(23,201,180,.1);color:var(--c-primary);padding:2px 7px;border-radius:6px;font-size:15px;}
.article-body hr{border:0;height:1px;background:var(--line);margin:36px 0;}

.article-empty{
  padding:56px 32px;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--panel);
  text-align:center;
}
.article-empty svg{width:48px;height:48px;color:var(--t-3);margin:0 auto 18px;}
.article-empty .empty-title{font-size:20px;font-weight:700;color:var(--t-1);margin-bottom:10px;}
.article-empty p{color:var(--t-2);font-size:15px;margin-bottom:22px;}

.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line);}
.tag{
  font-size:12px;padding:4px 12px;border-radius:999px;height:24px;display:inline-flex;align-items:center;
  background:rgba(23,201,180,.1);border:1px solid rgba(23,201,180,.28);color:var(--c-primary);
}
.tag.violet{background:rgba(110,123,255,.12);border-color:rgba(110,123,255,.4);color:#9BA4FF;}

.back-row{margin-top:34px;}

/* aside */
.article-aside{display:grid;gap:22px;align-content:start;position:sticky;top:130px;}
.toc-card,.aside-card{
  border:1px solid var(--line);border-radius:var(--r-md);background:var(--panel);
  box-shadow:var(--shadow-card);
}
.toc-card{overflow:hidden;}
.toc-head{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:16px 20px;background:transparent;border:0;cursor:pointer;
  color:var(--t-1);font-size:15px;font-weight:600;text-align:left;
}
.toc-caret{width:16px;height:16px;color:var(--c-primary);transition:transform var(--ease);}
.toc-card.open .toc-caret{transform:rotate(180deg);}
.toc-body{display:none;padding:0 20px 18px;}
.toc-card.open .toc-body{display:block;}
.toc-body ol{list-style:none;counter-reset:toc;display:grid;gap:10px;}
.toc-body ol li{counter-increment:toc;font-size:14px;line-height:1.6;}
.toc-body ol li::before{content:counter(toc,decimal-leading-zero);font-family:var(--font-num);color:var(--c-primary);font-size:12px;margin-right:8px;}
.toc-body a{color:var(--t-2);}
.toc-body a:hover{color:var(--c-primary);}
.toc-body .lvl-3{padding-left:16px;}
.toc-body .lvl-3::before{color:var(--t-3);}

.aside-card{padding:20px;}
.aside-title{font-size:14px;font-weight:600;color:var(--t-1);margin-bottom:14px;}
.aside-links{list-style:none;display:grid;gap:12px;}
.aside-links a{font-size:14px;color:var(--t-2);display:flex;align-items:center;gap:8px;}
.aside-links a::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--c-primary);flex:0 0 auto;}
.aside-links a:hover{color:var(--c-primary);}
.aside-text{font-size:13px;color:var(--t-3);line-height:1.8;margin-bottom:16px;}

/* related */
.section{padding:88px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(22px,3vw,30px);}
.section-head .sub{font-size:14px;color:var(--t-2);margin-top:10px;}
.rel-grid{margin-top:4px;}
.rel-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow-card);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.rel-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.rel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-badge{
  position:absolute;left:12px;bottom:12px;font-size:12px;padding:3px 10px;border-radius:999px;
  background:rgba(23,201,180,.18);border:1px solid rgba(23,201,180,.4);color:#B8FFF4;
  backdrop-filter:blur(6px);
}
.rel-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1;}
.rel-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-body p{font-size:14px;color:var(--t-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.rel-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--t-3);margin-top:auto;}
.rel-card:hover .rel-foot .link-arrow{color:var(--c-primary);}

/* cta band */
.cta-band{
  position:relative;margin-top:88px;border-radius:var(--r-lg);overflow:hidden;
  padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border:1px solid var(--line);
}
.cta-band::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(5,9,15,.9),rgba(5,9,15,.66));}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{font-size:clamp(20px,2.6vw,28px);max-width:620px;}
.cta-band p{font-size:14px;color:var(--t-2);margin-top:12px;max-width:560px;}
.cta-band .cta-line{position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,var(--c-primary),var(--c-accent));opacity:.9;}

/* footer */
.site-footer{background:#070D16;border-top:1px solid var(--line);margin-top:96px;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand .brand-mark{font-size:22px;font-weight:800;}
.footer-brand p{color:var(--t-3);font-size:14px;line-height:1.85;margin-top:16px;max-width:330px;}
.footer-title{font-size:14px;font-weight:600;color:var(--t-1);margin-bottom:18px;}
.footer-links{list-style:none;display:grid;gap:12px;}
.footer-links a{position:relative;display:inline-block;font-size:14px;color:var(--t-2);transition:color var(--ease),padding-left var(--ease);}
.footer-links a::before{
  content:"";position:absolute;left:0;top:50%;width:0;height:2px;border-radius:2px;
  background:var(--c-primary);transform:translateY(-50%);transition:width var(--ease);
}
.footer-links a:hover{color:var(--c-primary);padding-left:14px;}
.footer-links a:hover::before{width:9px;}
.footer-contact{list-style:none;display:grid;gap:13px;font-size:14px;color:var(--t-2);}
.footer-contact li{display:flex;align-items:center;gap:10px;}
.footer-contact svg{width:16px;height:16px;color:var(--c-primary);flex:0 0 auto;}
.qr-box{
  width:96px;height:96px;margin-top:18px;border:1px dashed var(--line-strong);border-radius:var(--r-sm);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;line-height:1.6;color:var(--t-3);
}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--t-3);
}
.footer-bottom a{color:var(--t-3);}
.footer-bottom a:hover{color:var(--c-primary);}

/* ============ responsive ============ */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 290px;gap:36px;}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:34px;}
}
@media (max-width:991px){
  .search-pill{flex-basis:280px;}
  .hot-tags{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px;}
  .article-aside{position:static;}
  .article-main{max-width:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding-top:64px;}
  .cta-band{margin-top:64px;padding:40px 32px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .topbar-inner{height:52px;gap:12px;}
  .brand-sub{display:none;}
  .search-pill{display:none;}
  .search-toggle{display:flex;}
  .hotline{display:none;}
  .nav-toggle{display:flex;}
  .topbar-inner.search-open .search-pill{
    display:flex;position:absolute;left:16px;right:16px;top:calc(100% + 8px);
    flex-basis:auto;z-index:30;background:var(--panel);
    box-shadow:0 16px 36px rgba(0,0,0,.5);
  }
  .topbar-inner{position:relative;}
  .channel-inner{height:44px;}
  .trend-strip{display:none;}
  .channel-list{overflow-x:auto;gap:18px;width:100%;scrollbar-width:none;}
  .channel-list::-webkit-scrollbar{display:none;}
  .channel-list a{white-space:nowrap;font-size:14px;}
  .article-head h1{font-size:26px;}
  .article-body{font-size:16px;line-height:1.9;}
  .article-body h2{font-size:21px;margin-top:32px;}
  .article-body h3{font-size:18px;}
  .article-body table{font-size:14px;}
  .article-body th,.article-body td{padding:10px;}
  .section{padding-top:52px;}
  .section-head{margin-bottom:22px;}
  .cta-band{padding:32px 22px;border-radius:var(--r-md);}
  .site-footer{margin-top:56px;padding-top:44px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{margin-top:36px;}
}
@media (max-width:520px){
  .article-meta{gap:8px 16px;}
  .article-empty{padding:40px 20px;}
  .btn{height:42px;padding:0 18px;font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --bg-0:#05090F;
  --bg-1:#0A1420;
  --panel:#0E1A28;
  --panel-2:#0B1622;
  --c-primary:#17C9B4;
  --c-primary-dark:#0E8F82;
  --glow:rgba(23,201,180,.42);
  --c-accent:#FFB44C;
  --c-accent-soft:#FFD08A;
  --c-violet:#6E7BFF;
  --t-1:#E8F1F8;
  --t-2:#9DB0C4;
  --t-3:#62788E;
  --line:rgba(120,200,255,.14);
  --line-strong:rgba(23,201,180,.45);
  --r-lg:20px;
  --r-md:14px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-card:0 12px 32px rgba(0,0,0,.40);
  --sh-hover:0 20px 48px rgba(0,0,0,.55),0 0 0 1px var(--line-strong);
  --sh-glow:0 8px 24px var(--glow);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:220ms;
  --mono:"DIN Alternate","Roboto Mono",ui-monospace,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t-1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease)}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,h5{font-family:inherit;font-weight:700;color:var(--t-1);margin:0;letter-spacing:0}
p{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,9,15,.94);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--dur) var(--ease),background var(--dur) var(--ease);
}
.site-header.is-stuck{box-shadow:0 12px 28px rgba(0,0,0,.5);background:rgba(5,9,15,.88)}
.brand-row{transition:all var(--dur) var(--ease)}
.brand-inner{display:flex;align-items:center;gap:18px;height:56px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{font-family:var(--mono);font-size:22px;font-weight:700;color:var(--t-1);letter-spacing:.01em}
.brand-mark .dot{color:var(--c-primary)}
.logo-sub{font-size:12px;color:var(--t-3);line-height:1.2;padding-left:10px;border-left:1px solid var(--line)}
.search-box{
  flex:1 1 auto;max-width:400px;height:38px;display:flex;align-items:center;gap:8px;
  background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r-pill);
  padding:0 5px 0 16px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.search-box:focus-within{border-color:var(--line-strong);box-shadow:0 0 0 4px rgba(23,201,180,.12)}
.search-box input{flex:1 1 auto;min-width:0;background:transparent;border:0;outline:none;font-size:13px}
.search-box input::placeholder{color:var(--t-3)}
.search-box button{
  width:28px;height:28px;flex:0 0 auto;border:0;border-radius:50%;
  background:var(--c-primary);color:#04201C;display:grid;place-items:center;cursor:pointer;
  transition:background var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.search-box button:hover{background:#2ADBC5;transform:translateY(-1px)}
.search-box svg,.hotline svg,.menu-toggle svg{width:15px;height:15px}
.hot-tags{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.pill{
  font-size:12px;line-height:1;padding:6px 12px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--t-2);white-space:nowrap;
  transition:all var(--dur) var(--ease);
}
.pill:hover{color:var(--c-primary);border-color:var(--line-strong);background:rgba(23,201,180,.12)}
.hotline{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--t-2);flex:0 0 auto;font-family:var(--mono)}
.hotline svg{color:var(--c-primary)}
.menu-toggle{
  display:none;width:38px;height:38px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--panel-2);cursor:pointer;
  place-items:center;color:var(--t-1);
}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:14px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.btn-primary{background:var(--c-primary);color:#04201C;box-shadow:var(--sh-glow)}
.btn-primary:hover{transform:translateY(-2px);background:#2ADBC5;box-shadow:0 12px 30px rgba(23,201,180,.55)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px var(--glow)}
.btn-ghost{background:transparent;color:var(--t-1);border-color:var(--line)}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--line-strong);color:var(--c-primary);background:rgba(23,201,180,.08)}
.btn-sm{padding:8px 18px;font-size:13px}

/* 频道行 */
.channel-bar{border-top:1px solid var(--line)}
.channel-inner{display:flex;align-items:center;gap:24px;height:46px}
.channel-list{display:flex;align-items:center;gap:22px;flex:0 0 auto}
.channel-list a{
  position:relative;display:block;padding:12px 0;font-size:15px;color:var(--t-2);
  transition:color var(--dur) var(--ease);
}
.channel-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;border-radius:2px;
  background:var(--c-primary);box-shadow:0 0 10px var(--glow);
  transform:scaleX(0);transform-origin:left;transition:transform var(--dur) var(--ease);
}
.channel-list a:hover{color:var(--t-1)}
.channel-list a.active{color:var(--t-1)}
.channel-list a.active::after,.channel-list a:hover::after{transform:scaleX(1)}
.trend-strip{display:flex;align-items:center;gap:10px;min-width:0;flex:1 1 auto}
.trend-label{font-size:12px;color:var(--c-violet);border:1px solid rgba(110,123,255,.4);border-radius:var(--r-pill);padding:3px 10px;flex:0 0 auto}
.trend-scroll{display:flex;align-items:center;gap:16px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.trend-scroll::-webkit-scrollbar{display:none}
.trend-scroll a{font-size:12.5px;color:var(--t-3);white-space:nowrap;transition:color var(--dur) var(--ease)}
.trend-scroll a:hover{color:var(--c-primary)}
.trend-strip:hover .trend-scroll{animation-play-state:paused}

/* 移动抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(0,0,0,.6);opacity:0;visibility:hidden;transition:all var(--dur) var(--ease);z-index:90}
.drawer-mask.open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;width:82%;max-width:340px;height:100%;
  background:rgba(10,20,32,.94);backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-left:1px solid var(--line);z-index:95;padding:24px 22px;
  transform:translateX(104%);transition:transform 260ms var(--ease);
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:34px;height:34px;border-radius:var(--r-sm);border:1px solid var(--line);background:transparent;color:var(--t-1);cursor:pointer}
.drawer-title{font-size:12px;color:var(--t-3);letter-spacing:.08em;margin-bottom:10px}
.drawer-list li a{display:block;padding:11px 0;font-size:15px;color:var(--t-2);border-bottom:1px solid var(--line)}
.drawer-list li a.active{color:var(--c-primary)}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 22px}
.drawer-cta{width:100%}

/* 面包屑 */
.breadcrumb{padding:20px 0 0;font-size:13px;color:var(--t-3)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--t-3)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .current{color:var(--t-1)}

/* ===== Hero ===== */
.page-hero{position:relative;overflow:hidden;padding:34px 0 72px;background:var(--bg-1)}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.9}
.hero-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,9,15,.72) 0%,rgba(5,9,15,.86) 55%,var(--bg-0) 100%)}
.hero-inner{position:relative;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:40px;align-items:center}
.hero-card{
  border-radius:var(--r-lg);padding:34px 34px 30px;
  background:rgba(18,32,50,.62);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  box-shadow:var(--sh-card);
}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--c-primary);border:1px solid var(--line-strong);border-radius:var(--r-pill);padding:5px 12px;margin-bottom:16px}
.hero-card h1{font-size:44px;line-height:1.22;font-weight:700;margin-bottom:14px}
.hero-sub{font-size:16px;line-height:1.8;color:var(--t-2);max-width:34em}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 20px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.hero-badges li{font-size:12px;color:var(--t-2);border:1px solid var(--line);border-radius:var(--r-pill);padding:5px 12px;background:rgba(11,22,34,.6)}
.hero-stats{display:grid;gap:16px}
.stat{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 22px;box-shadow:var(--sh-card);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.stat:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--sh-hover)}
.stat .fig{font-family:var(--mono);font-size:32px;font-weight:700;color:var(--c-accent);line-height:1.1;letter-spacing:0}
.stat .fig small{font-size:14px;color:var(--t-2);font-weight:600;margin-left:4px}
.stat .lbl{font-size:13px;color:var(--t-3);margin-top:6px}

/* ===== 通用区块 ===== */
.section{padding:88px 0}
.section-alt{background:var(--bg-1)}
.section-head{margin-bottom:40px;max-width:760px}
.section-head h2{font-size:30px;line-height:1.3;margin-bottom:12px}
.section-head p{font-size:14px;line-height:1.8;color:var(--t-2)}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}

/* 图文交错 */
.step-row{margin-bottom:56px}
.step-row:last-child{margin-bottom:0}
.step-text .tag{
  display:inline-block;font-size:12px;line-height:1;padding:5px 12px;border-radius:var(--r-pill);
  color:var(--c-primary);background:rgba(23,201,180,.12);border:1px solid var(--line-strong);margin-bottom:14px;
}
.step-text h3{font-size:20px;line-height:1.4;font-weight:600;margin-bottom:12px}
.step-text p{font-size:15.5px;line-height:1.9;color:var(--t-2);margin-bottom:8px}
.step-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-md);border:1px solid var(--line);box-shadow:var(--sh-card)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14px;font-weight:600;
  color:var(--c-primary);border-bottom:1px solid transparent;padding-bottom:2px;
  transition:border-color var(--dur) var(--ease),gap var(--dur) var(--ease);
}
.link-arrow:hover{border-bottom-color:var(--c-primary);gap:10px}

/* 清单 + 摘要 */
.check-list{display:grid;gap:16px}
.check-item{
  display:grid;grid-template-columns:56px minmax(0,1fr);gap:16px;align-items:start;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 22px;box-shadow:var(--sh-card);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.check-item:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--sh-hover)}
.check-item .idx{font-family:var(--mono);font-size:24px;font-weight:700;color:rgba(23,201,180,.55);line-height:1.3}
.check-item h3{font-size:17px;font-weight:600;margin-bottom:6px}
.check-item p{font-size:14.5px;line-height:1.8;color:var(--t-2)}
.aside-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-card);position:sticky;top:130px;
}
.aside-card h3{font-size:18px;font-weight:600;margin-bottom:14px}
.aside-card .sum-list li{display:flex;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px;color:var(--t-2)}
.aside-card .sum-list li:last-child{border-bottom:0}
.aside-card .sum-list b{font-family:var(--mono);color:var(--c-accent);font-weight:700}
.aside-cta{margin-top:20px;width:100%}

/* 横向卡片 */
.scroll-wrap{overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;-webkit-overflow-scrolling:touch;padding-bottom:8px}
.scroll-wrap::-webkit-scrollbar{display:none}
.scroll-cards{display:flex;gap:24px;min-width:max-content}
.mini-card{
  width:320px;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-card);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.mini-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--sh-hover)}
.mini-card .badge{
  display:inline-block;font-size:12px;line-height:1;padding:5px 10px;border-radius:var(--r-pill);
  background:rgba(255,180,76,.14);color:var(--c-accent-soft);border:1px solid rgba(255,180,76,.3);margin-bottom:14px;
}
.mini-card h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:10px}
.mini-card p{font-size:14.5px;line-height:1.8;color:var(--t-2)}

/* FAQ */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0 22px 16px;background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--t-1);position:relative;
  transition:color var(--dur) var(--ease);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;border-radius:3px;
  background:var(--c-primary);box-shadow:0 0 10px var(--glow);
  transform:scaleY(0);transform-origin:top;transition:transform 260ms var(--ease);
}
.faq-item.open .faq-q::before{transform:scaleY(1)}
.faq-item.open .faq-q{color:var(--c-primary)}
.faq-icon{position:relative;flex:0 0 auto;width:18px;height:18px;transition:transform 260ms var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--t-2);border-radius:2px}
.faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:var(--c-primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 300ms var(--ease)}
.faq-a-inner{padding:0 16px 24px;font-size:15px;line-height:1.85;color:var(--t-2)}

/* CTA 横条 */
.cta-band{
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;position:relative;
  background:linear-gradient(90deg,rgba(23,201,180,.12),rgba(255,180,76,.10) 70%,rgba(110,123,255,.10));
  padding:38px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:var(--sh-card);
}
.cta-band::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent),transparent);
}
.cta-band h2{font-size:24px;line-height:1.4;margin-bottom:8px}
.cta-band p{font-size:14.5px;color:var(--t-2)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* 页脚 */
.site-footer{background:#070D16;border-top:1px solid var(--line);padding:64px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand-mark{font-size:20px}
.footer-brand p{font-size:13.5px;line-height:1.9;color:var(--t-3);margin-top:14px;max-width:30em}
.footer-title{font-size:14px;font-weight:600;color:var(--t-1);margin-bottom:16px}
.footer-links li,.footer-contact li{margin-bottom:12px}
.footer-links a{
  font-size:13.5px;color:var(--t-3);position:relative;padding-left:0;
  transition:color var(--dur) var(--ease),padding-left var(--dur) var(--ease);
}
.footer-links a::before{
  content:"";position:absolute;left:-10px;top:50%;width:2px;height:12px;border-radius:2px;
  background:var(--c-primary);transform:translateY(-50%) scaleY(0);transition:transform var(--dur) var(--ease);
}
.footer-links a:hover{color:var(--t-1);padding-left:10px}
.footer-links a:hover::before{transform:translateY(-50%) scaleY(1)}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--t-3)}
.footer-contact svg{width:16px;height:16px;color:var(--c-primary);flex:0 0 auto}
.footer-contact .num{font-family:var(--mono);color:var(--t-1)}
.qr-box{
  width:96px;height:96px;border:1px double var(--line);border-radius:var(--r-md);
  display:grid;place-items:center;text-align:center;font-size:12px;line-height:1.5;color:var(--t-3);
  margin-top:18px;background:rgba(11,22,34,.6);
}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--t-3);
}
.footer-bottom a{color:var(--t-2)}
.footer-bottom a:hover{color:var(--c-primary)}

/* 进场动画 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 400ms var(--ease),transform 400ms var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .hero-card h1{font-size:38px}
  .section{padding:76px 0}
}
@media (max-width:991px){
  .hot-tags{display:none}
  .hero-inner{grid-template-columns:1fr;gap:28px}
  .hero-stats{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:64px 0}
  .section-head h2{font-size:26px}
  .aside-card{position:static;margin-top:24px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .brand-inner{height:52px;gap:12px}
  .search-box,.hotline{display:none}
  .menu-toggle{display:grid}
  .channel-bar{display:none}
  .page-hero{padding:26px 0 52px}
  .hero-card{padding:24px 20px 22px}
  .hero-card h1{font-size:28px;margin-bottom:10px}
  .hero-sub{font-size:14.5px}
  .hero-stats{grid-template-columns:1fr;gap:12px}
  .section{padding:52px 0}
  .section-head h2{font-size:22px}
  .step-row{margin-bottom:40px}
  .step-row.reverse .step-media{order:-1}
  .step-media{margin-bottom:18px}
  .step-text h3{font-size:18px}
  .mini-card{width:264px;padding:20px}
  .cta-band{padding:26px 22px}
  .cta-band h2{font-size:20px}
  .faq-q{font-size:15.5px;padding:18px 0 18px 14px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .check-item{grid-template-columns:44px minmax(0,1fr);padding:18px 16px}
}
@media (max-width:480px){
  .hero-cta .btn{flex:1 1 auto}
  .btn{padding:10px 18px;font-size:13.5px}
}

/* roulang page: category2 */
:root{
  --bg-0:#05090F;
  --bg-1:#0A1420;
  --panel:#0E1A28;
  --c-primary:#17C9B4;
  --c-primary-dark:#0E8F82;
  --glow:rgba(23,201,180,.42);
  --c-accent:#FFB44C;
  --c-accent-soft:#FFD08A;
  --c-violet:#6E7BFF;
  --t-1:#E8F1F8;
  --t-2:#9DB0C4;
  --t-3:#62788E;
  --line:rgba(120,200,255,.14);
  --line-strong:rgba(23,201,180,.45);
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:12px;
  --shadow-card:0 12px 32px rgba(0,0,0,.40);
  --shadow-hover:0 20px 48px rgba(0,0,0,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-num:"DIN Alternate","Roboto Mono",ui-monospace,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{font-size:100%;-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t-1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--t-1);text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease)}
a:hover{color:var(--c-primary)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;cursor:pointer;background:none;border:0;color:inherit}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:90}
.topbar{
  background:rgba(7,13,22,.92);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  max-height:120px;
  overflow:hidden;
  transition:max-height .22s var(--ease),opacity .22s var(--ease);
}
body.is-stuck .topbar{max-height:0;opacity:0}
.topbar-inner{display:flex;align-items:center;gap:22px;height:58px}
.brand{display:flex;align-items:baseline;gap:10px;flex:0 0 auto}
.brand-mark{font-size:22px;font-weight:700;color:var(--t-1);letter-spacing:0}
.brand-mark .dot{color:var(--c-primary)}
.brand-sub{font-size:12px;color:var(--t-3);white-space:nowrap}

.search-box{position:relative;display:flex;align-items:center;flex:1 1 auto;max-width:420px}
.search-box input[type="search"]{
  width:100%;
  height:38px;
  padding:0 46px 0 16px;
  border-radius:999px;
  background:#0B1622;
  border:1px solid var(--line);
  color:var(--t-1);
  font-size:14px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.search-box input[type="search"]::placeholder{color:var(--t-3)}
.search-box input[type="search"]:focus{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(23,201,180,.16);outline:none}
.search-box button{
  position:absolute;right:4px;
  width:32px;height:32px;border-radius:999px;
  display:grid;place-items:center;
  background:var(--c-primary);color:#04211D;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.search-box button:hover{box-shadow:0 0 0 6px rgba(23,201,180,.16)}

.top-actions{margin-left:auto;display:flex;align-items:center;gap:14px;flex:0 0 auto}
.hot-tags{display:flex;gap:8px}
.hot-tags a{
  font-size:12px;padding:4px 10px;border-radius:999px;
  border:1px solid var(--line);color:var(--t-2);white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.hot-tags a:hover{background:rgba(23,201,180,.12);color:var(--c-primary);border-color:var(--line-strong)}
.hotline{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--t-2);white-space:nowrap}
.hotline i{color:var(--c-primary)}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);align-items:center;justify-content:center;color:var(--t-1);
}

.channel-bar{
  background:rgba(5,9,15,.92);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.channel-inner{display:flex;align-items:center;gap:26px;height:46px}
.channel-list{display:flex;gap:22px;flex:0 0 auto}
.channel-list a{
  position:relative;display:inline-block;padding:11px 0;
  font-size:15px;color:var(--t-2);white-space:nowrap;
  transition:color .22s var(--ease);
}
.channel-list a:hover{color:var(--t-1)}
.channel-list a.active{color:var(--t-1);font-weight:600}
.channel-list a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--c-primary);box-shadow:0 0 10px var(--glow);
}
.channel-list a:not(.active)::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;border-radius:2px;
  background:var(--c-primary);transition:right .22s var(--ease);
}
.channel-list a:not(.active):hover::after{right:0}
.trend-strip{display:flex;align-items:center;gap:10px;flex:1 1 auto;min-width:0;overflow:hidden}
.trend-label{
  flex:0 0 auto;font-size:12px;color:var(--c-violet);
  border:1px solid rgba(110,123,255,.4);border-radius:6px;padding:1px 6px;
}
.trend-scroll{display:flex;gap:8px;overflow-x:auto;white-space:nowrap;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.trend-scroll::-webkit-scrollbar{display:none}
.trend-scroll a{
  flex:0 0 auto;font-size:12px;padding:3px 10px;border-radius:999px;
  border:1px solid var(--line);color:var(--t-2);
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.trend-scroll a:hover{background:rgba(23,201,180,.12);color:var(--c-primary);border-color:var(--line-strong)}
.trend-scroll:hover{scroll-behavior:auto}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:rgba(10,20,32,.97);
  backdrop-filter:blur(14px) saturate(120%);
  border-left:1px solid var(--line);
  transform:translateX(103%);
  transition:transform .28s var(--ease);
  z-index:130;padding:22px;overflow-y:auto;
}
.drawer.open{transform:none}
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);
  opacity:0;pointer-events:none;transition:opacity .28s var(--ease);z-index:120;
}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:36px;height:36px;border-radius:12px;border:1px solid var(--line);font-size:20px;line-height:1;color:var(--t-2)}
.drawer-links li{border-bottom:1px solid var(--line)}
.drawer-links a{display:block;padding:14px 2px;font-size:15px;color:var(--t-2)}
.drawer-links a.active{color:var(--c-primary);font-weight:600}
.drawer-hot{margin:22px 0 24px}
.drawer-label{font-size:12px;color:var(--t-3);margin-bottom:10px}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px}
.drawer-tags a{font-size:12px;padding:4px 10px;border-radius:999px;border:1px solid var(--line);color:var(--t-2)}
.btn-block{width:100%}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;padding:12px 24px;
  white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#04211D;box-shadow:0 8px 24px var(--glow)}
.btn-primary:hover{background:#1FDCC5;color:#04211D;transform:translateY(-2px);box-shadow:0 12px 32px var(--glow)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 5px 16px var(--glow)}
.btn-ghost{background:rgba(18,32,50,.5);border-color:var(--line);color:var(--t-1)}
.btn-ghost:hover{border-color:var(--line-strong);color:var(--c-primary);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:8px 16px;font-size:13px}
.btn-lg{padding:14px 30px;font-size:16px}

/* ---------- breadcrumb + hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--bg-1);border-bottom:1px solid var(--line)}
.page-hero .hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5}
.page-hero .hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,9,15,.74),rgba(5,9,15,.93) 64%,var(--bg-0));
}
.hero-inner{
  position:relative;display:grid;grid-template-columns:minmax(0,1.32fr) minmax(0,.88fr);
  gap:48px;align-items:center;padding-top:28px;padding-bottom:76px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t-3);margin-bottom:22px}
.breadcrumb a{color:var(--t-3)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb span.sep{color:var(--t-3);opacity:.6}
.breadcrumb .current{color:var(--t-1)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;color:var(--c-primary);letter-spacing:.02em;
  border:1px solid var(--line-strong);border-radius:999px;padding:4px 12px;
  background:rgba(23,201,180,.08);
}
.hero-copy h1{font-size:44px;line-height:1.22;font-weight:700;margin:18px 0 16px}
.hero-lead{font-size:16px;color:var(--t-2);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-stats{display:grid;gap:14px}
.stat-card{
  background:rgba(18,32,50,.62);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:18px 22px;display:flex;align-items:baseline;gap:14px;
  transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.stat-card:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.stat-num{font-family:var(--font-num);font-size:32px;font-weight:700;color:var(--c-accent);line-height:1.1}
.stat-num small{font-size:15px;margin-left:2px}
.stat-label{font-size:13px;color:var(--t-2);line-height:1.6}

/* ---------- section ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:40px}
.section-head h2{font-size:30px;line-height:1.3;font-weight:700}
.section-head .sub{font-size:14px;color:var(--t-2);margin-top:10px;max-width:720px}
.section-head .more{font-size:14px;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.section-head .more:hover{gap:10px}

/* ---------- level cards ---------- */
.level-card{
  position:relative;height:100%;background:var(--panel);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px 26px;display:flex;flex-direction:column;gap:14px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
  overflow:hidden;
}
.level-card::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:var(--level-color,var(--c-primary));opacity:.85}
.level-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.level-top{display:flex;align-items:center;gap:12px}
.level-icon{
  width:44px;height:44px;border-radius:var(--radius-sm);display:grid;place-items:center;
  background:rgba(23,201,180,.12);color:var(--level-color,var(--c-primary));
  border:1px solid var(--line);
}
.level-card h3{font-size:20px;font-weight:600;line-height:1.4}
.level-range{font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--level-color,var(--c-accent))}
.level-range span{font-family:inherit;font-size:13px;font-weight:400;color:var(--t-3);margin-left:6px}
.level-card p.desc{font-size:14px;color:var(--t-2);line-height:1.8}
.level-list{display:grid;gap:8px;margin-top:2px}
.level-list li{display:flex;gap:8px;font-size:14px;color:var(--t-2);line-height:1.75}
.level-list i{color:var(--c-primary);font-size:13px;margin-top:7px;flex:0 0 auto}
.level-card .card-link{margin-top:auto;font-size:14px;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.level-card .card-link:hover{gap:10px}
.level-1{--level-color:#17C9B4}
.level-2{--level-color:#FFB44C}
.level-3{--level-color:#6E7BFF}

/* ---------- benefit grid ---------- */
.benefit-card{
  position:relative;height:100%;display:flex;flex-direction:column;gap:12px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:24px 22px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.benefit-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.benefit-icon{
  width:44px;height:44px;border-radius:var(--radius-sm);display:grid;place-items:center;
  background:rgba(23,201,180,.12);color:var(--c-primary);border:1px solid rgba(23,201,180,.28);
  font-size:17px;
}
.benefit-card h3{font-size:19px;font-weight:600;line-height:1.4}
.benefit-card p{font-size:14px;color:var(--t-2);line-height:1.8}
.benefit-card .card-link{margin-top:auto;font-size:14px;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.benefit-card .card-link:hover{gap:10px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:23px;padding:0 10px;border-radius:999px;font-size:12px;
  background:rgba(23,201,180,.14);color:var(--c-primary);border:1px solid rgba(23,201,180,.26);
}
.badge-accent{background:var(--c-accent);color:#2A1A00;border-color:transparent}
.badge-violet{background:rgba(110,123,255,.16);color:#9FA8FF;border-color:rgba(110,123,255,.32)}

/* ---------- steps ---------- */
.step-card{
  position:relative;height:100%;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius-md);padding:26px 22px;
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.step-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.step-num{
  font-family:var(--font-num);font-size:34px;font-weight:700;line-height:1;
  color:var(--c-primary);opacity:.9;margin-bottom:14px;display:block;
}
.step-card h3{font-size:19px;font-weight:600;margin-bottom:10px}
.step-card p{font-size:14px;color:var(--t-2);line-height:1.8}

/* ---------- split block ---------- */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center}
.split-media{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card)}
.split-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s var(--ease)}
.split-media:hover img{transform:scale(1.04)}
.split h2{font-size:30px;line-height:1.3;font-weight:700;margin-bottom:16px}
.split p{font-size:15px;color:var(--t-2);margin-bottom:14px}
.split-list{display:grid;gap:10px;margin:18px 0 24px}
.split-list li{display:flex;gap:10px;font-size:14px;color:var(--t-2);line-height:1.75}
.split-list i{color:var(--c-primary);margin-top:6px;font-size:13px;flex:0 0 auto}
.split-note{
  font-size:13px;color:var(--t-3);border-left:3px solid var(--line-strong);
  padding:10px 0 10px 14px;background:rgba(23,201,180,.05);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);padding-left:0;transition:padding-left .26s var(--ease),border-color .26s var(--ease)}
.faq-item.open{padding-left:16px;border-left:3px solid var(--c-primary)}
.faq-q{
  width:100%;text-align:left;position:relative;
  padding:20px 48px 20px 0;font-size:17px;font-weight:600;line-height:1.6;color:var(--t-1);
}
.faq-item.open .faq-q{color:var(--c-primary)}
.faq-q::after{
  content:"";position:absolute;right:10px;top:50%;
  width:14px;height:14px;transform:translateY(-50%);
  background:
    linear-gradient(var(--c-primary),var(--c-primary)) center/14px 2px no-repeat,
    linear-gradient(var(--c-primary),var(--c-primary)) center/2px 14px no-repeat;
  transition:transform .26s var(--ease);
}
.faq-item.open .faq-q::after{transform:translateY(-50%) rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease)}
.faq-a p{padding:0 44px 22px 0;font-size:15px;color:var(--t-2);line-height:1.85}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid var(--line);padding:56px;
}
.cta-band img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42}
.cta-band .veil{position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,9,15,.92),rgba(5,9,15,.62))}
.cta-band .line{position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,var(--c-primary),var(--c-accent))}
.cta-inner{position:relative;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
.cta-inner h2{font-size:28px;line-height:1.34;font-weight:700;margin-bottom:10px}
.cta-inner p{font-size:14px;color:var(--t-2);max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- footer ---------- */
.site-footer{background:#070D16;border-top:1px solid var(--line);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:40px;padding-bottom:48px}
.footer-brand p{font-size:14px;color:var(--t-2);line-height:1.85;margin-top:14px;max-width:320px}
.footer-brand .brand-mark{font-size:22px}
.footer-title{font-size:14px;font-weight:600;color:var(--t-1);margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{position:relative;display:inline-block;font-size:14px;color:var(--t-2);padding-left:0;transition:color .22s var(--ease),padding-left .22s var(--ease)}
.footer-links a::before{
  content:"";position:absolute;left:0;top:50%;width:0;height:2px;border-radius:2px;
  background:var(--c-primary);transform:translateY(-50%);transition:width .22s var(--ease);
}
.footer-links a:hover{color:var(--c-primary);padding-left:12px}
.footer-links a:hover::before{width:7px}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--t-2);margin-bottom:12px}
.footer-contact svg{width:18px;height:18px;color:var(--c-primary);flex:0 0 auto}
.footer-contact .num{font-family:var(--font-num);font-weight:700;color:var(--t-1);letter-spacing:.02em}
.qr-box{
  width:96px;height:96px;margin-top:16px;border:1px dashed var(--line);border-radius:var(--radius-sm);
  display:grid;place-items:center;text-align:center;font-size:12px;line-height:1.5;color:var(--t-3);
}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:var(--t-3);
}
.footer-bottom a{color:var(--t-3)}
.footer-bottom a:hover{color:var(--c-primary)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s var(--ease),transform .4s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .hero-copy h1{font-size:38px}
}
@media (max-width:1024px){
  .search-box{max-width:300px}
  .hot-tags{display:none}
  .hero-inner{grid-template-columns:1fr;gap:32px;padding-bottom:60px}
  .hero-copy h1{font-size:34px}
  .hero-stats{grid-template-columns:repeat(3,minmax(0,1fr))}
  .stat-card{flex-direction:column;gap:6px;padding:16px}
  .split{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  body{font-size:15px}
  .container{padding-left:16px;padding-right:16px}
  .topbar-inner{height:54px;gap:12px}
  .brand-sub{display:none}
  .search-box{display:none}
  .hotline{display:none}
  .menu-toggle{display:flex}
  .topbar{max-height:120px}
  body.is-stuck .topbar{max-height:120px;opacity:1}
  .channel-list{gap:18px;overflow-x:auto;scrollbar-width:none}
  .channel-list::-webkit-scrollbar{display:none}
  .channel-list a{font-size:14px}
  .trend-strip{display:none}
  .hero-inner{padding-top:20px;padding-bottom:52px}
  .hero-copy h1{font-size:28px}
  .hero-lead{font-size:15px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-stats{grid-template-columns:1fr;gap:10px}
  .stat-card{flex-direction:row;align-items:baseline}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .section-head h2{font-size:22px}
  .section-head .sub{font-size:13px}
  .cta-band{padding:32px 22px}
  .cta-inner h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .faq-q{font-size:16px;padding:18px 40px 18px 0}
  .faq-a p{padding-right:24px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .hero-copy h1{font-size:26px}
  .btn{padding:11px 20px;font-size:14px}
  .level-card,.benefit-card,.step-card{padding:20px 18px}
  .cta-band{padding:26px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --bg-0:#05090F;
  --bg-1:#0A1420;
  --panel:#0E1A28;
  --panel-2:#0B1622;
  --c-primary:#17C9B4;
  --c-primary-dark:#0E8F82;
  --c-accent:#FFB44C;
  --c-accent-light:#FFD08A;
  --c-violet:#6E7BFF;
  --t-1:#E8F1F8;
  --t-2:#9DB0C4;
  --t-3:#62788E;
  --line:rgba(120,200,255,.14);
  --line-strong:rgba(23,201,180,.45);
  --glow:rgba(23,201,180,.42);
  --glass-bg:rgba(18,32,50,.62);
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:12px;
  --shadow-card:0 12px 32px rgba(0,0,0,.40);
  --shadow-hover:0 20px 48px rgba(0,0,0,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --num-font:"DIN Alternate","Roboto Mono",ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t-1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:0;color:var(--t-1)}
h1{font-size:44px;line-height:1.22}
h2{font-size:30px;line-height:1.3}
h3{font-size:20px;line-height:1.4;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
hr{border:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:var(--num-font);font-weight:700;letter-spacing:0}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,9,15,.88);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-compact{box-shadow:0 12px 32px rgba(0,0,0,.55)}
.topbar{
  max-height:60px;overflow:hidden;
  transition:max-height .3s var(--ease),opacity .22s var(--ease);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  display:flex;align-items:center;gap:20px;
  height:56px;
}
.brand{display:flex;align-items:baseline;gap:10px;flex-shrink:0}
.brand-mark{
  font-family:var(--num-font);
  font-size:24px;font-weight:700;color:var(--t-1);
  letter-spacing:-.01em;line-height:1;
}
.brand-mark .dot{color:var(--c-primary)}
.brand-sub{font-size:12px;color:var(--t-3);letter-spacing:.04em}
.search-box{
  position:relative;flex:1 1 auto;max-width:420px;min-width:220px;
  display:flex;align-items:center;
  background:var(--panel-2);
  border:1px solid var(--line);
  border-radius:999px;
  padding:0 6px 0 18px;
  height:38px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.search-box:focus-within{border-color:var(--line-strong);box-shadow:0 0 0 4px rgba(23,201,180,.12)}
.search-box input{
  flex:1;background:transparent;border:0;outline:none;
  font-size:14px;color:var(--t-1);height:100%;
}
.search-box input::placeholder{color:var(--t-3)}
.search-box button{
  width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(23,201,180,.14);color:var(--c-primary);
  transition:background .22s var(--ease);
}
.search-box button:hover{background:rgba(23,201,180,.28)}
.topbar-right{display:flex;align-items:center;gap:12px;margin-left:auto;flex-shrink:0}
.hot-pill{
  font-size:12px;line-height:1;padding:6px 10px;border-radius:999px;
  border:1px solid var(--line);color:var(--t-2);white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.hot-pill:hover{background:rgba(23,201,180,.12);color:var(--c-primary);border-color:var(--line-strong)}
.hotline{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--t-2);white-space:nowrap}
.hotline svg{width:15px;height:15px;color:var(--c-primary)}
.menu-toggle{
  display:none;width:38px;height:38px;border-radius:var(--radius-sm);
  border:1px solid var(--line);align-items:center;justify-content:center;color:var(--t-1);
}
.menu-toggle svg{width:18px;height:18px}

/* 主按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-size:15px;font-weight:600;line-height:1;
  padding:13px 24px;border:1px solid transparent;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{
  background:linear-gradient(180deg,#1AD6C0,#12A896);
  color:#04211D;
  box-shadow:0 8px 24px var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(23,201,180,.55);filter:brightness(1.08)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(23,201,180,.40)}
.btn-ghost{
  background:transparent;color:var(--t-1);border-color:var(--line);
}
.btn-ghost:hover{border-color:var(--line-strong);color:var(--c-primary);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px}

/* 频道行 */
.channel-bar{border-bottom:0}
.channel-inner{display:flex;align-items:center;gap:24px;height:46px}
.channel-list{display:flex;align-items:center;gap:22px;flex-shrink:0}
.channel-list a{
  position:relative;font-size:15px;color:var(--t-2);padding:12px 0;display:inline-block;
  transition:color .22s var(--ease);
}
.channel-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:2px;
  background:var(--c-primary);border-radius:2px;box-shadow:0 0 8px var(--glow);
  transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.channel-list a:hover{color:var(--t-1)}
.channel-list a:hover::after{transform:scaleX(1)}
.channel-list a.active{color:var(--t-1)}
.channel-list a.active::after{transform:scaleX(1)}
.trend-strip{display:flex;align-items:center;gap:10px;min-width:0;margin-left:auto}
.trend-label{font-size:12px;color:var(--c-violet);border:1px solid rgba(110,123,255,.35);background:rgba(110,123,255,.10);border-radius:999px;padding:3px 9px;flex-shrink:0}
.trend-scroll{
  display:flex;gap:16px;overflow-x:auto;white-space:nowrap;
  scrollbar-width:none;-ms-overflow-style:none;
  mask-image:linear-gradient(90deg,transparent,#000 16px,#000 calc(100% - 24px),transparent);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 16px,#000 calc(100% - 24px),transparent);
}
.trend-scroll::-webkit-scrollbar{display:none}
.trend-scroll a{font-size:13px;color:var(--t-3)}
.trend-scroll a:hover{color:var(--c-primary)}
.trend-scroll:hover{animation-play-state:paused}

/* 吸顶合并单行 */
.compact-bar{
  display:none;align-items:center;gap:20px;height:58px;
}
.site-header.is-compact .topbar{max-height:0;opacity:0;border-bottom-color:transparent}
.site-header.is-compact .channel-bar{display:none}
.site-header.is-compact .compact-bar{display:flex}
.compact-nav{display:flex;align-items:center;gap:18px;overflow-x:auto;scrollbar-width:none}
.compact-nav::-webkit-scrollbar{display:none}
.compact-nav a{font-size:14px;color:var(--t-2);white-space:nowrap;position:relative;padding:6px 0}
.compact-nav a:hover{color:var(--t-1)}
.compact-nav a.active{color:var(--c-primary)}
.compact-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex-shrink:0}
.compact-search{
  width:180px;height:34px;border-radius:999px;padding:0 16px;
  background:var(--panel-2);border:1px solid var(--line);outline:none;font-size:13px;
}
.compact-search::placeholder{color:var(--t-3)}
.compact-search:focus{border-color:var(--line-strong)}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);opacity:0;visibility:hidden;
  transition:opacity .28s var(--ease),visibility .28s var(--ease);z-index:90;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);z-index:95;
  background:rgba(10,20,32,.94);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .3s var(--ease);
  padding:22px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:36px;height:36px;border-radius:var(--radius-sm);border:1px solid var(--line);display:grid;place-items:center;color:var(--t-1)}
.drawer-title{font-size:12px;color:var(--t-3);letter-spacing:.08em;margin:20px 0 10px}
.drawer-links a{display:block;padding:12px 0;font-size:15px;color:var(--t-2);border-bottom:1px solid var(--line)}
.drawer-links a:hover,.drawer-links a.active{color:var(--c-primary)}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px}
.drawer-cta{margin-top:24px;width:100%}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section-tight{padding:56px 0}
.section-head{margin-bottom:40px;max-width:760px}
.section-head .eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.08em;color:var(--c-primary);
  border:1px solid var(--line-strong);background:rgba(23,201,180,.10);
  border-radius:999px;padding:4px 12px;margin-bottom:14px;
}
.section-head p{margin-top:12px;font-size:14px;color:var(--t-2)}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--c-primary);
  border-bottom:1px solid transparent;padding-bottom:2px;
}
.text-link:hover{color:var(--c-accent);border-bottom-color:var(--c-accent)}
.text-link svg{width:14px;height:14px}

/* 面包屑 */
.breadcrumb{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t-3);
  padding:22px 0 0;
}
.breadcrumb a{color:var(--t-3)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--t-3);opacity:.6}
.breadcrumb .current{color:var(--t-1)}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:36px 0 76px;
  background-image:linear-gradient(180deg,rgba(5,9,15,.70),rgba(5,9,15,.93)),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero .hero-grid{margin-top:26px}
.hero-copy{padding-right:12px}
.hero-copy h1{margin:16px 0 16px}
.hero-copy .hero-text{font-size:16px;color:var(--t-2);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;line-height:1;padding:8px 13px;border-radius:999px;
  border:1px solid var(--line);background:rgba(18,32,50,.5);color:var(--t-2);
}
.chip svg{width:14px;height:14px;color:var(--c-primary)}
.hero-side{
  background:var(--glass-bg);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px;
  box-shadow:var(--shadow-card);
}
.hero-side .side-title{font-size:13px;color:var(--t-3);margin-bottom:18px}
.stat-row{display:flex;flex-direction:column;gap:18px}
.stat-item{display:flex;align-items:baseline;gap:12px;border-bottom:1px dashed var(--line);padding-bottom:16px}
.stat-item:last-child{border-bottom:0;padding-bottom:0}
.stat-item .stat-num{font-family:var(--num-font);font-weight:700;font-size:34px;color:var(--c-accent);line-height:1}
.stat-item .stat-num small{font-size:15px;margin-left:3px;color:var(--c-accent-light)}
.stat-item .stat-text{font-size:13px;color:var(--t-2)}

/* ============ 档位速览 ============ */
.tier-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.tier-card{
  position:relative;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:26px 22px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
  overflow:hidden;
}
.tier-card::before{
  content:attr(data-index);
  position:absolute;top:-10px;right:10px;
  font-family:var(--num-font);font-size:68px;font-weight:700;
  color:rgba(232,241,248,.06);line-height:1;pointer-events:none;
}
.tier-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.tier-card .tier-ico{
  width:42px;height:42px;border-radius:var(--radius-sm);display:grid;place-items:center;
  background:rgba(23,201,180,.12);color:var(--c-primary);margin-bottom:16px;
}
.tier-card .tier-ico svg{width:20px;height:20px}
.tier-card h3{font-size:18px;margin-bottom:8px}
.tier-card p{font-size:14px;color:var(--t-2);line-height:1.8}
.tier-card .tier-tag{
  display:inline-block;margin-top:16px;font-size:12px;padding:4px 10px;border-radius:999px;
  background:rgba(255,180,76,.14);color:var(--c-accent);border:1px solid rgba(255,180,76,.3);
}
.tier-card.violet .tier-ico{background:rgba(110,123,255,.14);color:var(--c-violet)}
.tier-card.violet .tier-tag{background:rgba(110,123,255,.14);color:#A9B2FF;border-color:rgba(110,123,255,.32)}

/* ============ 时间线 ============ */
.timeline-section{background:linear-gradient(180deg,var(--bg-0),var(--bg-1) 40%,var(--bg-0));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.timeline{position:relative;padding-left:0}
.timeline::before{
  content:"";position:absolute;left:23px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,var(--c-primary),rgba(23,201,180,.06));
}
.timeline-item{position:relative;padding-left:76px;margin-bottom:28px}
.timeline-item:last-child{margin-bottom:0}
.timeline-node{
  position:absolute;left:0;top:18px;width:48px;height:48px;border-radius:50%;
  display:grid;place-items:center;
  font-family:var(--num-font);font-size:16px;font-weight:700;
  background:var(--bg-1);border:1px solid var(--line-strong);color:var(--c-primary);
  box-shadow:0 0 0 6px rgba(23,201,180,.07);
}
.timeline-card{
  display:grid;grid-template-columns:1fr 260px;gap:28px;align-items:center;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 28px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.timeline-card.no-media{grid-template-columns:1fr}
.timeline-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.timeline-card h3{margin-bottom:10px}
.timeline-card p{font-size:14.5px;color:var(--t-2)}
.timeline-card .step-tag{
  display:inline-block;font-size:12px;color:var(--c-primary);
  border:1px solid var(--line-strong);background:rgba(23,201,180,.08);
  border-radius:999px;padding:3px 10px;margin-bottom:12px;
}
.timeline-media{
  border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--line);
  aspect-ratio:16/10;background:var(--bg-1);
}
.timeline-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.timeline-card:hover .timeline-media img{transform:scale(1.04)}

/* ============ 规则要点 ============ */
.rules-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.rule-panel{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;
}
.rule-panel h3{margin-bottom:18px;display:flex;align-items:center;gap:10px}
.rule-panel h3 .dot-pin{width:8px;height:8px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 10px var(--glow)}
.rule-list li{
  position:relative;padding:14px 0 14px 26px;font-size:14.5px;color:var(--t-2);
  border-bottom:1px solid var(--line);
}
.rule-list li:last-child{border-bottom:0;padding-bottom:0}
.rule-list li::before{
  content:"";position:absolute;left:2px;top:24px;width:7px;height:7px;
  border-radius:2px;background:var(--c-primary);opacity:.85;
}
.rule-list li strong{color:var(--t-1);font-weight:600}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;text-align:left;font-size:17px;font-weight:600;color:var(--t-1);
  transition:color .22s var(--ease);
}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{
  position:relative;width:18px;height:18px;flex-shrink:0;
  transition:transform .26s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-item.open .faq-q{color:var(--c-primary)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .26s var(--ease),padding .26s var(--ease);
  border-left:3px solid transparent;padding-left:0;
}
.faq-item.open .faq-a{
  max-height:340px;border-left-color:var(--c-primary);padding-left:16px;padding-bottom:22px;
}
.faq-a p{font-size:15px;color:var(--t-2);line-height:1.85}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  background-image:linear-gradient(180deg,rgba(5,9,15,.72),rgba(5,9,15,.90)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  padding:52px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  opacity:.75;
}
.cta-band h2{font-size:28px;margin-bottom:10px}
.cta-band p{font-size:14.5px;color:var(--t-2);max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:#070D16;border-top:1px solid var(--line);padding:64px 0 26px;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand-mark{display:inline-block;font-family:var(--num-font);font-size:24px;font-weight:700;color:var(--t-1)}
.footer-brand .brand-mark .dot{color:var(--c-primary)}
.footer-brand p{margin-top:14px;font-size:14px;color:var(--t-2);line-height:1.8;max-width:320px}
.footer-title{font-size:14px;font-weight:600;color:var(--t-1);margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{position:relative;font-size:14px;color:var(--t-2);padding-left:0;transition:color .22s var(--ease),padding-left .22s var(--ease)}
.footer-links a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:2px;height:0;background:var(--c-primary);transition:height .22s var(--ease);
}
.footer-links a:hover{color:var(--c-primary);padding-left:10px}
.footer-links a:hover::before{height:14px}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--t-2);margin-bottom:12px}
.footer-contact svg{width:16px;height:16px;color:var(--c-primary);flex-shrink:0}
.footer-contact .num{color:var(--t-1);font-size:15px}
.qr-box{
  width:96px;height:96px;border-radius:var(--radius-sm);border:1px dashed var(--line-strong);
  display:grid;place-items:center;text-align:center;font-size:12px;color:var(--t-3);line-height:1.5;
  background:var(--panel-2);margin-top:16px;
}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--t-3);
}
.footer-bottom a{color:var(--t-2)}
.footer-bottom a:hover{color:var(--c-primary)}

/* ============ 进场动画 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s var(--ease),transform .4s var(--ease)}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  h1{font-size:38px}
  h2{font-size:27px}
  .tier-grid{grid-template-columns:repeat(3,1fr)}
  .search-box{max-width:300px}
  .hotline{display:none}
}
@media (max-width:991px){
  .section{padding:64px 0}
  h1{font-size:34px}
  h2{font-size:24px}
  .hot-pill{display:none}
  .search-box{min-width:0;flex:1}
  .tier-grid{grid-template-columns:repeat(2,1fr)}
  .rules-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .timeline-card{grid-template-columns:1fr;gap:20px}
  .timeline-media{max-width:100%}
  .cta-band{padding:40px 28px}
  .compact-search{display:none}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .topbar-inner{height:52px;gap:12px}
  .menu-toggle{display:flex}
  .topbar .btn-primary{display:none}
  .brand-sub{display:none}
  .search-box{display:none}
  .channel-bar{display:none}
  .site-header{padding-bottom:0}
  .site-header.is-compact .compact-bar{display:flex;height:54px;gap:12px}
  .compact-nav{display:none}
  .compact-actions{margin-left:auto}
  h1{font-size:28px}
  h2{font-size:22px}
  h3{font-size:18px}
  .section{padding:52px 0}
  .page-hero{padding:20px 0 56px}
  .hero-copy{padding-right:0}
  .hero-side{padding:22px;margin-top:26px}
  .tier-grid{grid-template-columns:1fr;gap:16px}
  .timeline-item{padding-left:60px}
  .timeline::before{left:19px}
  .timeline-node{width:40px;height:40px;font-size:14px}
  .timeline-card{padding:22px 18px}
  .cta-band{padding:32px 20px;border-radius:var(--radius-md)}
  .cta-band h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .stat-item .stat-num{font-size:28px}
  .hero-actions .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}

/* roulang page: category4 */
:root{
  --bg-0:#05090F;
  --bg-1:#0A1420;
  --panel:#0E1A28;
  --c-primary:#17C9B4;
  --c-primary-dark:#0E8F82;
  --glow:rgba(23,201,180,.42);
  --c-accent:#FFB44C;
  --c-accent-soft:#FFD08A;
  --c-violet:#6E7BFF;
  --t-1:#E8F1F8;
  --t-2:#9DB0C4;
  --t-3:#62788E;
  --line:rgba(120,200,255,.14);
  --line-strong:rgba(23,201,180,.45);
  --r-lg:20px;
  --r-md:14px;
  --r-sm:12px;
  --shadow:0 12px 32px rgba(0,0,0,.40);
  --shadow-hover:0 20px 48px rgba(0,0,0,.55);
  --ease:220ms cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"DIN Alternate","Roboto Mono",ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--t-1);text-decoration:none;transition:color var(--ease),border-color var(--ease);}
a:hover{color:var(--c-primary);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-family:var(--font-num);font-weight:700;font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(5,9,15,.86);backdrop-filter:blur(14px) saturate(120%);border-bottom:1px solid var(--line);transition:box-shadow var(--ease);}
.site-header.is-stuck{box-shadow:0 14px 34px rgba(0,0,0,.55);}
.top-bar{border-bottom:1px solid var(--line);}
.top-inner{display:flex;align-items:center;gap:20px;height:56px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{font-family:var(--font-num);font-size:22px;font-weight:700;letter-spacing:0;color:var(--t-1);}
.brand-mark .dot{color:var(--c-primary);}
.brand-sub{font-size:12px;color:var(--t-3);border-left:1px solid var(--line);padding-left:10px;line-height:1.2;}
.search-box{position:relative;flex:1 1 auto;max-width:420px;min-width:180px;}
.search-box input{
  width:100%;height:38px;padding:0 46px 0 16px;border-radius:999px;
  background:#0B1622;border:1px solid var(--line);color:var(--t-1);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-box input::placeholder{color:var(--t-3);}
.search-box input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(23,201,180,.14);}
.search-box button{
  position:absolute;right:4px;top:4px;width:30px;height:30px;border:none;border-radius:50%;
  background:var(--c-primary);color:#05201C;display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background var(--ease),transform var(--ease);
}
.search-box button:hover{background:#3ADCC8;}
.search-box button svg{width:15px;height:15px;}
.top-right{display:flex;align-items:center;gap:14px;margin-left:auto;}
.hot-tags{display:flex;gap:8px;}
.hot-tags a{
  font-size:12px;padding:4px 10px;border-radius:999px;border:1px solid var(--line);
  color:var(--t-2);white-space:nowrap;transition:all var(--ease);
}
.hot-tags a:hover{color:var(--c-primary);border-color:var(--line-strong);background:rgba(23,201,180,.12);}
.hotline{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--t-2);white-space:nowrap;}
.hotline svg{width:15px;height:15px;color:var(--c-primary);}
.menu-toggle{display:none;width:38px;height:34px;border-radius:var(--r-sm);border:1px solid var(--line);background:rgba(18,32,50,.62);color:var(--t-1);cursor:pointer;align-items:center;justify-content:center;}
.menu-toggle:hover{border-color:var(--line-strong);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1px solid transparent;cursor:pointer;
  font-weight:600;letter-spacing:0;transition:all var(--ease);white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#04201B;box-shadow:0 8px 24px var(--glow);}
.btn-primary:hover{background:#35DAC6;color:#04201B;transform:translateY(-2px);box-shadow:0 14px 32px var(--glow);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 16px var(--glow);}
.btn-ghost{background:rgba(18,32,50,.62);border-color:var(--line);color:var(--t-1);}
.btn-ghost:hover{border-color:var(--line-strong);color:var(--c-primary);transform:translateY(-2px);}
.btn-sm{height:34px;padding:0 16px;font-size:13px;}
.btn-md{height:44px;padding:0 24px;font-size:15px;}
.btn-lg{height:52px;padding:0 34px;font-size:16px;}

/* channel bar */
.channel-bar{background:rgba(10,20,32,.55);}
.channel-inner{display:flex;align-items:center;gap:28px;height:46px;}
.channel-list{display:flex;align-items:center;gap:22px;flex:0 0 auto;}
.channel-list li a{
  position:relative;display:inline-block;font-size:15px;color:var(--t-2);line-height:46px;padding:0 2px;
}
.channel-list li a::after{
  content:"";position:absolute;left:0;right:0;bottom:8px;height:2px;border-radius:2px;
  background:var(--c-primary);box-shadow:0 0 10px var(--glow);
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.channel-list li a:hover{color:var(--t-1);}
.channel-list li a:hover::after{transform:scaleX(1);}
.channel-list li a.active{color:var(--t-1);font-weight:600;}
.channel-list li a.active::after{transform:scaleX(1);}
.trend-strip{display:flex;align-items:center;gap:10px;min-width:0;flex:1 1 auto;overflow:hidden;}
.trend-label{font-size:12px;color:var(--c-violet);border:1px solid rgba(110,123,255,.4);border-radius:999px;padding:2px 9px;flex:0 0 auto;}
.trend-scroll{display:flex;gap:16px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;animation:trendMove 46s linear infinite;}
.trend-scroll::-webkit-scrollbar{display:none;}
.trend-strip:hover .trend-scroll{animation-play-state:paused;}
.trend-scroll a{font-size:12px;color:var(--t-3);white-space:nowrap;}
.trend-scroll a:hover{color:var(--c-primary);}
@keyframes trendMove{from{transform:translateX(0);}to{transform:translateX(-50%);}}

/* drawer */
.drawer-mask{position:fixed;inset:0;background:rgba(0,0,0,.6);opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:90;}
.drawer-mask.show{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;z-index:95;
  background:rgba(14,26,40,.96);backdrop-filter:blur(14px) saturate(120%);
  border-left:1px solid var(--line);padding:22px 20px;overflow-y:auto;
  transform:translateX(102%);transition:transform var(--ease);
}
.drawer.show{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-head .brand-mark{font-size:20px;}
.drawer-close{width:32px;height:32px;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--t-2);cursor:pointer;}
.drawer-close:hover{color:var(--c-primary);border-color:var(--line-strong);}
.drawer-list li a{display:block;padding:12px 6px;font-size:15px;color:var(--t-2);border-bottom:1px solid var(--line);}
.drawer-list li a.active{color:var(--c-primary);font-weight:600;}
.drawer-block{margin-top:22px;}
.drawer-block p{font-size:12px;color:var(--t-3);margin-bottom:10px;}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.drawer-tags a{font-size:12px;padding:5px 10px;border-radius:999px;border:1px solid var(--line);color:var(--t-2);}
.drawer .btn{width:100%;margin-top:22px;}

/* ---------- breadcrumb ---------- */
.breadcrumb{padding:22px 0 0;font-size:13px;color:var(--t-3);}
.breadcrumb a{color:var(--t-3);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{margin:0 8px;color:var(--t-3);}
.breadcrumb .cur{color:var(--t-1);}

/* ---------- hero ---------- */
.page-hero{position:relative;padding:40px 0 72px;overflow:hidden;}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.5;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,9,15,.72) 0%,rgba(5,9,15,.9) 62%,var(--bg-0) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.25fr .85fr;gap:40px;align-items:center;margin-top:26px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--c-primary);
  background:rgba(23,201,180,.12);border:1px solid var(--line-strong);border-radius:999px;padding:5px 12px;
}
.hero-glass{
  background:rgba(18,32,50,.62);backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--shadow);
}
h1{font-size:44px;line-height:1.22;font-weight:700;margin:16px 0 14px;}
.hero-lead{font-size:16px;color:var(--t-2);max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;height:24px;padding:0 11px;
  border-radius:999px;border:1px solid var(--line);color:var(--t-2);background:rgba(18,32,50,.5);
}
.badge i{color:var(--c-primary);font-size:11px;}
.badge-accent{background:var(--c-accent);border-color:var(--c-accent);color:#2A1802;font-weight:600;}
.badge-accent i{color:#2A1802;}
.hero-visual{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);position:relative;aspect-ratio:4/3;}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-visual figcaption{
  position:absolute;left:14px;bottom:14px;right:14px;font-size:12px;color:var(--t-2);
  background:rgba(5,9,15,.72);border:1px solid var(--line);border-radius:var(--r-sm);padding:8px 12px;
}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:28px;}
.stat{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);padding:16px 18px;
  transition:all var(--ease);
}
.stat:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--shadow);}
.stat .v{font-family:var(--font-num);font-weight:700;font-size:30px;color:var(--c-accent);line-height:1.2;}
.stat .k{font-size:13px;color:var(--t-3);margin-top:6px;}

/* ---------- sections ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
h2{font-size:30px;line-height:1.3;font-weight:700;}
.section-head p{font-size:14px;color:var(--t-2);margin-top:10px;max-width:640px;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
.text-link{font-size:14px;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.text-link i{font-size:12px;transition:transform var(--ease);}
.text-link:hover i{transform:translateX(4px);}

/* table */
.table-wrap{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
table.cmp{width:100%;min-width:760px;border-collapse:collapse;}
table.cmp thead th{
  text-align:left;font-size:14px;color:var(--t-2);font-weight:600;
  padding:18px 20px;background:rgba(10,20,32,.9);border-bottom:1px solid var(--line);
}
table.cmp thead th:first-child{width:236px;color:var(--t-3);}
table.cmp thead th.recommend{color:var(--c-accent);}
table.cmp tbody td{
  padding:15px 20px;font-size:14px;color:var(--t-2);border-bottom:1px solid var(--line);
  border-left:1px dashed rgba(120,200,255,.10);
}
table.cmp tbody td:first-child{border-left:none;color:var(--t-1);font-size:14.5px;}
table.cmp tbody tr:nth-child(even){background:rgba(120,200,255,.03);}
table.cmp tbody tr:hover{background:rgba(23,201,180,.06);}
table.cmp tbody tr:last-child td{border-bottom:none;}
.mark-ok{display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;border-radius:50%;background:var(--c-primary);color:#04201B;font-size:10px;margin-right:8px;vertical-align:-3px;}
.mark-no{display:inline-block;width:14px;color:var(--t-3);font-family:var(--font-num);margin-right:8px;text-align:center;}
.table-note{font-size:13px;color:var(--t-3);margin-top:14px;}

/* scene cards */
.scene-card{
  height:100%;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;transition:all var(--ease);
}
.scene-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.scene-icon{
  width:44px;height:44px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;
  background:rgba(23,201,180,.12);color:var(--c-primary);font-size:17px;margin-bottom:16px;
}
.scene-card h3{font-size:18px;margin-bottom:10px;}
.scene-card p{font-size:14px;color:var(--t-2);}
.scene-card ul{margin-top:14px;display:grid;gap:8px;}
.scene-card ul li{font-size:13px;color:var(--t-2);padding-left:16px;position:relative;}
.scene-card ul li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--c-primary);}

/* checklist */
.check-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;}
.check-list{display:grid;gap:14px;margin-top:8px;}
.check-item{
  display:flex;gap:16px;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-md);padding:18px 20px;transition:all var(--ease);
}
.check-item:hover{border-color:var(--line-strong);transform:translateY(-3px);}
.check-no{
  font-family:var(--font-num);font-weight:700;font-size:20px;color:var(--c-primary);
  flex:0 0 40px;line-height:1.4;
}
.check-item h3{font-size:16.5px;margin-bottom:6px;}
.check-item p{font-size:13.5px;color:var(--t-2);}
.check-figure{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);aspect-ratio:4/3;}
.check-figure img{width:100%;height:100%;object-fit:cover;}
.check-note{
  margin-top:18px;padding:16px 18px;border-radius:var(--r-md);
  background:rgba(23,201,180,.08);border:1px solid var(--line-strong);font-size:13.5px;color:var(--t-2);
}

/* faq */
.faq-wrap{max-width:900px;margin:0 auto;}
.acc-item{border-bottom:1px solid var(--line);}
.acc-head{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:none;padding:22px 0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--t-1);transition:color var(--ease);
}
.acc-head:hover{color:var(--c-primary);}
.acc-head .ico{
  flex:0 0 18px;width:18px;height:18px;position:relative;transition:transform 260ms cubic-bezier(.2,.7,.3,1);
}
.acc-head .ico::before,.acc-head .ico::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;
}
.acc-head .ico::before{left:0;right:0;top:8px;height:2px;}
.acc-head .ico::after{top:0;bottom:0;left:8px;width:2px;}
.acc-item.open .acc-head{color:var(--c-primary);}
.acc-item.open .acc-head .ico{transform:rotate(45deg);}
.acc-item.open .acc-head{border-left:3px solid var(--c-primary);padding-left:16px;}
.acc-panel{max-height:0;overflow:hidden;transition:max-height 260ms cubic-bezier(.2,.7,.3,1);}
.acc-panel p{font-size:15px;color:var(--t-2);padding:0 0 22px;line-height:1.85;}
.acc-item.open .acc-panel{padding-left:16px;}

/* center cta */
.cta-center{text-align:center;}
.cta-box{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:52px 32px;box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.cta-box::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
}
.cta-box h2{font-size:28px;}
.cta-box p{font-size:15px;color:var(--t-2);max-width:620px;margin:14px auto 28px;}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;}
.cta-meta{margin-top:22px;font-size:13px;color:var(--t-3);}

/* footer */
.site-footer{background:#070D16;border-top:1px solid var(--line);padding:64px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand .brand-mark{font-size:24px;display:inline-block;margin-bottom:14px;}
.footer-brand p{font-size:13.5px;color:var(--t-3);max-width:300px;}
.footer-title{font-size:14px;color:var(--t-1);font-weight:600;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links li a{font-size:13.5px;color:var(--t-3);display:inline-block;position:relative;padding-left:0;transition:all var(--ease);}
.footer-links li a::before{
  content:"";position:absolute;left:-10px;top:50%;transform:translateY(-50%) scaleY(0);
  width:2px;height:12px;background:var(--c-primary);transition:transform var(--ease);
}
.footer-links li a:hover{color:var(--t-1);padding-left:10px;}
.footer-links li a:hover::before{transform:translateY(-50%) scaleY(1);}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;color:var(--t-3);margin-bottom:12px;align-items:flex-start;}
.footer-contact li svg{width:16px;height:16px;flex:0 0 16px;color:var(--c-primary);margin-top:4px;}
.footer-contact li .num{color:var(--t-1);}
.qr-box{
  width:96px;height:96px;border-radius:var(--r-sm);border:1px dashed var(--line-strong);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;color:var(--t-3);line-height:1.6;margin-top:16px;background:rgba(18,32,50,.4);
}
.footer-bottom{
  margin-top:46px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--t-3);
}
.footer-bottom a{color:var(--t-3);}
.footer-bottom a:hover{color:var(--c-primary);}

/* reveal */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 400ms cubic-bezier(.2,.7,.3,1),transform 400ms cubic-bezier(.2,.7,.3,1);}
.reveal.in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  h1{font-size:38px;}
  .hero-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .check-grid{gap:34px;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  h2{font-size:26px;}
  .top-inner{height:52px;gap:14px;}
  .hot-tags,.hotline{display:none;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-visual{aspect-ratio:16/9;}
  .check-grid{grid-template-columns:1fr;}
  .check-figure{order:-1;aspect-ratio:16/9;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  body{font-size:15.5px;}
  h1{font-size:28px;}
  h2{font-size:22px;}
  h3{font-size:18px;}
  .section{padding:56px 0;}
  .search-box{display:none;}
  .menu-toggle{display:flex;}
  .top-right{gap:10px;}
  .channel-bar{overflow-x:auto;scrollbar-width:none;}
  .channel-bar::-webkit-scrollbar{display:none;}
  .channel-inner{height:44px;gap:16px;}
  .channel-list{gap:16px;}
  .channel-list li a{font-size:14px;line-height:44px;white-space:nowrap;}
  .trend-strip{display:none;}
  .hero-glass{padding:24px;}
  .hero-stats{grid-template-columns:1fr;gap:10px;}
  .stat{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:14px 16px;}
  .stat .v{font-size:24px;}
  .stat .k{margin:0;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .cta-box{padding:36px 20px;}
  .check-no{flex-basis:34px;font-size:18px;}
}
@media (max-width:480px){
  .hero-actions .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .acc-head{font-size:16px;padding:18px 0;}
}