/* roulang page: index */
:root{
  --bg-base:#070B12;
  --bg-1:#0C131F;
  --bg-2:#111B2B;
  --bg-3:#16223A;
  --brand:#17E2B1;
  --brand-2:#6BE8FF;
  --accent:#FF7A2F;
  --t1:#F2F6FB;
  --t2:#A9B6C6;
  --t3:#6C7A8C;
  --glass:rgba(255,255,255,.055);
  --glass-2:rgba(255,255,255,.085);
  --line:rgba(255,255,255,.10);
  --line-brand:rgba(23,226,177,.18);
  --ok:#3DD68C;
  --warn:#FFB020;
  --err:#FF5A5A;
  --info:#6BE8FF;
  --r-card:18px;
  --r-list:14px;
  --r-pill:999px;
  --r-input:12px;
  --r-cover:16px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06), 0 12px 40px rgba(0,0,0,.38);
  --shadow-hover:inset 0 1px 0 rgba(255,255,255,.09), 0 18px 50px rgba(0,0,0,.52);
  --glow:0 0 0 1px rgba(23,226,177,.45), 0 8px 26px rgba(23,226,177,.28);
  --glow-hover:0 0 0 1px rgba(23,226,177,.55), 0 12px 34px rgba(23,226,177,.42);
  --container:1240px;
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --font-num:"DIN Alternate","Roboto Mono","Menlo",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--t1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-2);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1{font-size:clamp(30px,4.4vw,54px);line-height:1.15;font-weight:700;letter-spacing:-.01em;}
h2{font-size:clamp(24px,2.8vw,34px);line-height:1.25;font-weight:700;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(23,226,177,.3);color:#fff;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;position:relative;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.sec-head h2{position:relative;padding-left:42px;}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:28px;height:3px;border-radius:2px;background:var(--brand-2);
}
.sec-desc{color:var(--t2);font-size:14px;line-height:1.7;margin-top:10px;padding-left:42px;max-width:640px;}
.link-more{color:var(--brand-2);font-size:14px;font-weight:500;display:inline-flex;align-items:center;gap:6px;}
.link-more span{transition:transform .2s ease;display:inline-block;}
.link-more:hover span{transform:translateX(4px);}

/* ---------- 按钮 / 胶囊 / 徽章 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#04231B;box-shadow:var(--glow);}
.btn-primary:hover{background:#2AF0C0;color:#04231B;box-shadow:var(--glow-hover);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(23,226,177,.35);}
.btn-ghost{background:transparent;color:var(--t1);border:1px solid rgba(255,255,255,.18);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:rgba(23,226,177,.06);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;}
.btn .spinner{
  width:14px;height:14px;border-radius:50%;
  border:2px solid rgba(4,35,27,.35);border-top-color:#04231B;
  animation:spin .7s linear infinite;display:none;
}
.btn.is-loading .spinner{display:inline-block;}
@keyframes spin{to{transform:rotate(360deg);}}

.pill{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.06em;line-height:1;
}
.pill-live{background:var(--accent);color:#2B1103;font-weight:700;}
.pill-ghost{border:1px solid var(--line-brand);color:var(--brand);background:rgba(23,226,177,.06);}
.pill-soft{background:var(--glass);border:1px solid var(--line);color:var(--t2);}
.pill-replay{background:rgba(107,232,255,.12);border:1px solid rgba(107,232,255,.24);color:var(--brand-2);}
.dot{width:6px;height:6px;border-radius:50%;background:currentColor;display:inline-block;}
.pill-live .dot{animation:breathe 2s ease-in-out infinite;}
@keyframes breathe{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.35;transform:scale(.75);}}

.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:8px;
  font-size:12px;color:var(--t2);background:var(--glass);border:1px solid var(--line);
}
.tag-brand{color:var(--brand);border-color:var(--line-brand);background:rgba(23,226,177,.07);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:transparent;
  transition:background .28s ease,backdrop-filter .28s ease,border-color .28s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-stuck{
  background:rgba(7,11,18,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav{display:flex;align-items:center;gap:28px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--t1);}
.brand:hover{color:var(--t1);}
.brand-name{font-size:18px;font-weight:700;letter-spacing:.02em;}
.brand-chip{
  font-size:12px;letter-spacing:.08em;padding:3px 10px;border-radius:var(--r-pill);
  border:1px solid var(--brand);color:var(--brand);line-height:1.3;
}
.nav-menu{display:flex;align-items:center;gap:6px;flex:1 1 auto;}
.nav-menu a{
  position:relative;color:var(--t2);font-size:15px;padding:0 14px;height:64px;
  display:inline-flex;align-items:center;transition:color .2s ease;
}
.nav-menu a:hover{color:var(--t1);}
.nav-menu a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:14px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-menu a:hover::after{transform:scaleX(.45);}
.nav-menu a.is-active{color:var(--t1);font-weight:600;}
.nav-menu a.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;border:1px solid var(--line);color:var(--t2);background:var(--glass);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--line-brand);background:rgba(23,226,177,.08);}
.icon-btn svg{width:18px;height:18px;}
.burger{display:none;}
.search-layer{
  position:absolute;left:0;right:0;top:100%;
  background:rgba(12,19,31,.94);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  padding:20px 0;display:none;
}
.search-layer.is-open{display:block;animation:fadeDown .24s ease;}
@keyframes fadeDown{from{opacity:0;transform:translateY(-8px);}to{opacity:1;transform:translateY(0);}}
.search-form{display:flex;gap:12px;}
.search-form input{
  flex:1;height:46px;padding:0 16px;border-radius:var(--r-input);
  background:var(--bg-2);border:1px solid var(--line);color:var(--t1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form input::placeholder{color:var(--t3);}
.search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,226,177,.18);}

.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:120;
  background:var(--bg-1);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .3s cubic-bezier(.4,0,.2,1);
  padding:22px;display:flex;flex-direction:column;gap:8px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer a.drawer-link{
  display:block;padding:14px 12px;border-radius:var(--r-list);color:var(--t2);
  border:1px solid transparent;
}
.drawer a.drawer-link:hover{color:var(--t1);background:var(--glass);border-color:var(--line);}
.drawer a.drawer-link.is-active{color:var(--brand);background:rgba(23,226,177,.08);border-color:var(--line-brand);}
.drawer .btn{margin-top:16px;}
.scrim{
  position:fixed;inset:0;background:rgba(3,6,11,.7);z-index:110;opacity:0;visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;
}
.scrim.is-open{opacity:1;visibility:visible;}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:64px 0 88px;overflow:hidden;
  background:
    radial-gradient(1100px 520px at 82% -10%,rgba(23,226,177,.16),transparent 62%),
    radial-gradient(760px 420px at 6% 8%,rgba(107,232,255,.10),transparent 60%),
    var(--bg-base);
}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;}
.status-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
.hero h1{margin-bottom:18px;}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{color:var(--t2);font-size:17px;line-height:1.8;max-width:33em;margin-bottom:30px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px;}
.hero-stats li{display:flex;flex-direction:column;gap:2px;}
.hero-stats strong{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:26px;font-weight:700;color:var(--brand);line-height:1.2;
}
.hero-stats li:nth-child(2) strong{color:var(--accent);}
.hero-stats span{font-size:13px;color:var(--t3);}

.cover-card{
  position:relative;border-radius:var(--r-cover);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);background:var(--bg-2);
}
.cover-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.cover-card::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(7,11,18,.12) 0%,rgba(7,11,18,.05) 42%,rgba(7,11,18,.88) 100%);
}
.badge-live{
  position:absolute;top:16px;left:16px;z-index:2;
  display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--accent);color:#2B1103;
  font-size:12px;font-weight:700;letter-spacing:.08em;
}
.badge-live .dot{width:7px;height:7px;background:#2B1103;animation:breathe 2s ease-in-out infinite;}
.badge-dur{
  position:absolute;right:16px;bottom:96px;z-index:2;
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:12px;padding:4px 10px;border-radius:8px;
  background:rgba(7,11,18,.72);border:1px solid var(--line);color:var(--t2);
}
.cover-bar{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:16px 18px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:rgba(12,19,31,.66);backdrop-filter:blur(12px);border-top:1px solid var(--line);
}
.cover-bar h3{font-size:17px;margin-bottom:4px;}
.cover-bar p{font-size:13px;color:var(--t2);}
.cover-bar .meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px;}

/* ---------- 倒计时 ---------- */
.cd-card{
  display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;
  padding:34px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow-card);
  backdrop-filter:blur(12px);
}
.cd-label{font-size:13px;color:var(--t3);letter-spacing:.1em;margin-bottom:16px;}
.cd-units{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;}
.cd-unit{
  min-width:82px;padding:12px 10px;border-radius:14px;text-align:center;
  background:var(--bg-1);border:1px solid rgba(255,122,47,.32);
  box-shadow:inset 0 2px 12px rgba(0,0,0,.5);
}
.cd-unit b{
  display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:clamp(34px,5vw,58px);font-weight:700;line-height:1;color:var(--accent);
  transition:transform .2s ease;
}
.cd-unit small{display:block;font-size:12px;color:var(--t3);margin-top:8px;}
.cd-sep{font-family:var(--font-num);font-size:clamp(24px,3vw,40px);color:var(--brand-2);animation:blink 1s steps(1,end) infinite;}
@keyframes blink{50%{opacity:.25;}}
.cd-next{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:20px;
  padding-top:18px;border-top:1px solid var(--line);
}
.cd-next b{font-size:16px;font-weight:600;}
.cd-next span{font-size:13px;color:var(--t2);}
.cd-action{display:flex;flex-direction:column;gap:10px;align-items:flex-end;}
.cd-action p{font-size:12px;color:var(--t3);text-align:right;}

/* ---------- 看点列表 ---------- */
.spots{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.spot{
  position:relative;display:flex;gap:20px;padding:24px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.spot:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--line-brand);}
.spot-num{
  font-family:var(--font-num);font-size:34px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1.4px rgba(23,226,177,.55);
  flex:0 0 auto;
}
.spot h3{font-size:19px;margin-bottom:8px;}
.spot p{font-size:14px;color:var(--t2);line-height:1.7;margin-bottom:12px;}
.spot-tags{display:flex;gap:8px;flex-wrap:wrap;}

/* ---------- 订阅 ---------- */
.subscribe{
  display:grid;grid-template-columns:1fr 1.05fr;gap:44px;align-items:center;
  padding:40px;border-radius:var(--r-card);
  background:linear-gradient(140deg,rgba(23,226,177,.10),rgba(107,232,255,.05) 45%,rgba(255,255,255,.03));
  border:1px solid var(--line-brand);box-shadow:var(--shadow-card);
}
.subscribe h2{padding-left:42px;position:relative;margin-bottom:14px;}
.subscribe h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:28px;height:3px;border-radius:2px;background:var(--brand-2);}
.subscribe p.lead{color:var(--t2);font-size:15px;margin-bottom:20px;}
.benefit-tags{display:flex;gap:10px;flex-wrap:wrap;}
.form-box{background:rgba(12,19,31,.62);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;}
.channel-group{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px;}
.channel{
  height:38px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--t2);font-size:14px;background:var(--glass);
  transition:all .2s ease;
}
.channel:hover{color:var(--t1);border-color:var(--line-brand);}
.channel.is-active{background:var(--brand);border-color:var(--brand);color:#04231B;font-weight:600;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--t3);margin-bottom:8px;}
.field input{
  width:100%;height:46px;padding:0 16px;border-radius:var(--r-input);
  background:var(--bg-2);border:1px solid var(--line);color:var(--t1);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field input::placeholder{color:var(--t3);}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,226,177,.18);}
.field.has-error input{border-color:var(--err);border-left:3px solid var(--err);}
.field .err{display:none;font-size:13px;color:var(--err);margin-top:8px;}
.field.has-error .err{display:block;}
.field.is-ok input{border-color:var(--ok);box-shadow:0 0 0 3px rgba(61,214,140,.16);}
.form-note{font-size:12px;color:var(--t3);margin-top:12px;line-height:1.7;}
.form-success{
  display:none;align-items:center;gap:10px;padding:14px 16px;border-radius:var(--r-input);
  background:rgba(61,214,140,.10);border:1px solid rgba(61,214,140,.35);color:var(--ok);font-size:14px;
}
.form-success.is-on{display:flex;}

/* ---------- 入口卡 ---------- */
.entry-grid{display:grid;grid-template-columns:2fr 1fr;gap:22px;}
.entry-side{display:grid;gap:22px;}
.entry-card{
  display:flex;flex-direction:column;justify-content:space-between;gap:22px;
  padding:28px;border-radius:var(--r-card);color:var(--t1);
  background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--line-brand);color:var(--t1);}
.entry-wide{
  position:relative;overflow:hidden;min-height:320px;justify-content:flex-end;
  background-image:linear-gradient(180deg,rgba(7,11,18,.24),rgba(7,11,18,.92)),url('/assets/images/coverpic/cover-3.png');
  background-size:cover;background-position:center;
}
.entry-ico{
  width:44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(23,226,177,.10);border:1px solid var(--line-brand);color:var(--brand);
}
.entry-card h3{margin-bottom:8px;}
.entry-card p{font-size:14px;color:var(--t2);line-height:1.7;}
.entry-arrow{color:var(--brand-2);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.entry-arrow span{transition:transform .2s ease;display:inline-block;}
.entry-card:hover .entry-arrow span{transform:translateX(4px);}

/* ---------- 资讯列表 ---------- */
.filter-row{display:flex;gap:10px;flex-wrap:wrap;}
.news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.news-card{
  display:flex;flex-direction:column;border-radius:var(--r-list);overflow:hidden;
  background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow-card);
  color:var(--t1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--line-brand);color:var(--t1);}
.news-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-2);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(7,11,18,.6));}
.news-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-body h3{
  font-size:17px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:13px;color:var(--t2);line-height:1.7;display:-webkit-box;
  -webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:12px;border-top:1px solid var(--line);font-size:12px;color:var(--t3);
}
.news-meta .go{color:var(--brand-2);font-weight:600;}
.news-empty{
  grid-column:1/-1;min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:10px;border-radius:var(--r-card);border:1px dashed var(--line);background:var(--glass);color:var(--t3);
}
.news-empty .ico{width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--bg-2);color:var(--t3);font-size:20px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-list);background:var(--glass);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,background .2s ease;
}
.faq-item:hover{border-color:var(--line-brand);}
.faq-item[open]{background:var(--bg-1);border-color:var(--line-brand);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:17px;font-weight:600;color:var(--t1);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-ico{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-brand);color:var(--brand);font-size:15px;line-height:1;
  transition:transform .25s ease;
}
.faq-item[open] .faq-ico{transform:rotate(180deg);}
.faq-panel{
  padding:0 20px 20px 22px;font-size:15px;color:var(--t2);line-height:1.8;
  border-left:2px solid var(--brand);margin-left:0;
}

/* ---------- 底部 CTA ---------- */
.cta-bar{
  margin-top:72px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:30px 34px;border-radius:var(--r-card);
  background:linear-gradient(120deg,rgba(23,226,177,.12),rgba(107,232,255,.06));
  border:1px solid var(--line-brand);box-shadow:var(--shadow-card);
}
.cta-bar h2{font-size:clamp(20px,2.2vw,26px);padding-left:38px;position:relative;}
.cta-bar h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:24px;height:3px;border-radius:2px;background:var(--brand-2);}
.cta-bar p{color:var(--t2);font-size:14px;margin-top:8px;padding-left:38px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:36px;}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{font-size:14px;color:var(--t2);line-height:1.8;max-width:32em;}
.footer-col h4{font-size:14px;letter-spacing:.08em;color:var(--t3);margin-bottom:16px;font-weight:600;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{color:var(--t2);font-size:14px;}
.footer-col ul a:hover{color:var(--brand-2);text-decoration:underline;text-underline-offset:3px;}
.sub-form{display:flex;gap:10px;margin-top:14px;}
.sub-form input{
  flex:1;min-width:0;height:44px;padding:0 14px;border-radius:var(--r-input);
  background:var(--bg-2);border:1px solid var(--line);color:var(--t1);
}
.sub-form input::placeholder{color:var(--t3);}
.sub-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,226,177,.16);}
.footer-tags{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:26px;border-top:1px solid var(--line);
}
.footer-tags a{
  font-size:13px;color:var(--t2);padding:6px 12px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);
}
.footer-tags a:hover{color:var(--brand);border-color:var(--line-brand);background:rgba(23,226,177,.07);}
.footer-bottom{
  margin-top:26px;padding:20px 0 28px;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(--t3);
}
.footer-bottom a{color:var(--t3);}
.footer-bottom a:hover{color:var(--brand-2);text-decoration:underline;text-underline-offset:3px;}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap;}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .nav-menu a{padding:0 10px;font-size:14px;}
  .nav{gap:18px;}
}
@media (max-width:1024px){
  .section{padding:64px 0;}
  .hero{padding:48px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-visual{order:2;}
  .spots{grid-template-columns:1fr;}
  .news-list{grid-template-columns:repeat(2,1fr);}
  .subscribe{grid-template-columns:1fr;gap:28px;padding:30px;}
  .entry-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:880px){
  .nav-menu{display:none;}
  .burger{display:inline-flex;}
  .nav-right .btn-primary{display:none;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .section{padding:48px 0;}
  .hero{padding:36px 0 48px;}
  .hero-sub{font-size:16px;}
  .hero-stats{gap:22px;}
  .cd-card{grid-template-columns:1fr;gap:24px;padding:24px;}
  .cd-unit{min-width:64px;padding:10px 8px;}
  .cd-unit b{font-size:40px;}
  .cd-action{align-items:flex-start;}
  .cd-action p{text-align:left;}
  .news-list{grid-template-columns:1fr;}
  .cover-bar{flex-direction:column;align-items:flex-start;}
  .badge-dur{bottom:130px;}
  .cta-bar{padding:24px;margin-top:48px;}
  .entry-wide{min-height:260px;}
  .sec-head{margin-bottom:26px;}
}
@media (max-width:560px){
  .hero-stats{gap:18px;}
  .hero-stats strong{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .sub-form{flex-direction:column;}
  .sub-form .btn{width:100%;}
  .spot{flex-direction:column;gap:12px;}
  .cd-unit{min-width:56px;}
  .cd-unit b{font-size:34px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --bg-base:#070B12;
  --bg-1:#0C131F;
  --bg-2:#111B2B;
  --bg-3:#16223A;
  --brand:#17E2B1;
  --brand-2:#6BE8FF;
  --accent:#FF7A2F;
  --t1:#F2F6FB;
  --t2:#A9B6C6;
  --t3:#6C7A8C;
  --glass:rgba(255,255,255,.055);
  --glass-line:rgba(255,255,255,.10);
  --brand-line:rgba(23,226,177,.18);
  --ok:#3DD68C;
  --warn:#FFB020;
  --err:#FF5A5A;
  --r-card:18px;
  --r-list:14px;
  --r-img:16px;
  --r-input:12px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06), 0 12px 40px rgba(0,0,0,.38);
  --shadow-hover:inset 0 1px 0 rgba(255,255,255,.08), 0 18px 50px rgba(0,0,0,.48);
  --glow:0 0 0 1px rgba(23,226,177,.45), 0 8px 26px rgba(23,226,177,.28);
  --glow-hover:0 0 0 1px rgba(23,226,177,.45), 0 10px 34px rgba(23,226,177,.45);
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --mono:"DIN Alternate","Roboto Mono",ui-monospace,monospace;
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;font-family:var(--font);font-size:16px;line-height:1.75;
  color:var(--t1);
  background:
    radial-gradient(900px 520px at 12% -6%, rgba(23,226,177,.13), transparent 62%),
    radial-gradient(760px 460px at 96% 4%, rgba(107,232,255,.10), transparent 60%),
    var(--bg-base);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--brand-2);}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px;border-radius:6px;}
.container{max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.h2-title{font-size:clamp(24px,2.8vw,34px);line-height:1.25;font-weight:700;position:relative;padding-left:40px;}
.h2-title::before{content:"";position:absolute;left:0;top:.44em;width:28px;height:3px;border-radius:2px;background:var(--brand-2);}
.sub{color:var(--t2);font-size:15px;max-width:66ch;}
.muted{color:var(--t3);font-size:13px;}
.text-link{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px;font-size:14px;}
.text-link svg,.text-link i{transition:transform .22s ease;}
.text-link:hover svg,.text-link:hover i{transform:translateX(3px);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;font-weight:600;font-size:15px;
  border:1px solid transparent;transition:transform .2s ease,box-shadow .25s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#04231B;box-shadow:var(--glow);}
.btn-primary:hover{color:#04231B;transform:translateY(-1px);box-shadow:var(--glow-hover);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{background:rgba(255,255,255,.04);color:var(--t1);border-color:rgba(255,255,255,.18);}
.btn-ghost:hover{border-color:var(--brand);color:var(--t1);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  transition:background .28s ease,border-color .28s ease,backdrop-filter .28s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(7,11,18,.78);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:rgba(255,255,255,.08);
}
.nav{display:flex;align-items:center;gap:28px;height:var(--nav-h);}
.brand{display:inline-flex;align-items:center;gap:9px;flex-shrink:0;}
.brand-name{font-size:18px;font-weight:700;letter-spacing:.02em;color:var(--t1);}
.brand-chip{
  font-size:12px;line-height:1;padding:6px 10px;border-radius:999px;
  color:var(--brand);border:1px solid var(--brand-line);letter-spacing:.08em;
  background:rgba(23,226,177,.06);
}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-menu a{
  position:relative;display:inline-flex;align-items:center;height:var(--nav-h);
  padding:0 14px;font-size:15px;color:var(--t2);
}
.nav-menu a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:14px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.nav-menu a:hover{color:var(--t1);}
.nav-menu a:hover::after{transform:scaleX(1);}
.nav-menu a.is-active{color:var(--t1);font-weight:600;}
.nav-menu a.is-active::after{transform:scaleX(1);}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:44px;height:44px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  color:var(--t2);border:1px solid transparent;transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.icon-btn:hover{color:var(--t1);background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.12);}
.icon-btn svg{width:20px;height:20px;}
.burger{display:none;}
.search-layer{
  max-height:0;overflow:hidden;transition:max-height .3s ease;
  border-bottom:1px solid transparent;background:rgba(12,19,31,.86);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.search-layer.is-open{max-height:110px;border-bottom-color:rgba(255,255,255,.08);}
.search-form{display:flex;gap:12px;padding:18px 0;}
.search-form input{
  flex:1;height:44px;border-radius:var(--r-input);background:var(--bg-2);
  border:1px solid rgba(255,255,255,.12);padding:0 16px;color:var(--t1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form input::placeholder{color:var(--t3);}
.search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,226,177,.18);}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:95;
  background:var(--bg-1);border-left:1px solid var(--glass-line);
  transform:translateX(101%);transition:transform .3s ease;
  padding:22px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer a.drawer-link{
  padding:14px 12px;border-radius:var(--r-list);color:var(--t2);font-size:16px;
  border:1px solid transparent;transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.drawer a.drawer-link:hover,.drawer a.drawer-link.is-active{
  color:var(--t1);background:var(--glass);border-color:var(--glass-line);
}
.drawer .btn{margin-top:18px;width:100%;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,6,10,.6);z-index:90;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ---------- 文章头 ---------- */
.article-top{padding:28px 0 0;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t3);min-height:48px;flex-wrap:wrap;}
.crumbs a{color:var(--t3);}
.crumbs a:hover{color:var(--brand-2);}
.crumbs .sep{color:var(--t3);opacity:.6;}
.crumbs .current{color:var(--t2);}
.article-header{padding:8px 0 26px;border-bottom:1px solid rgba(255,255,255,.08);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;letter-spacing:.06em;color:var(--brand-2);
  background:rgba(107,232,255,.08);border:1px solid rgba(107,232,255,.24);
}
.tag.tag-live{color:#2A1200;background:var(--accent);border-color:var(--accent);font-weight:600;}
.article-header h1{
  font-size:clamp(28px,4vw,46px);line-height:1.2;font-weight:700;letter-spacing:-.01em;
  max-width:24ch;
}
.meta-row{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:18px;
  font-size:13px;color:var(--t2);
}
.meta-row span.dot{width:4px;height:4px;border-radius:50%;background:var(--t3);}
.meta-row .meta-strong{color:var(--t1);font-weight:600;}

/* ---------- 文章布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start;
  padding:44px 0 8px;
}
.article-body{
  max-width:760px;font-size:17px;line-height:1.9;color:#DCE5EF;
}
.article-body > * + *{margin-top:18px;}
.article-body h2{
  font-size:24px;line-height:1.4;font-weight:700;color:var(--t1);
  margin-top:40px;padding-left:0;
}
.article-body h3{font-size:20px;line-height:1.45;font-weight:600;color:var(--t1);margin-top:30px;}
.article-body p{color:#D3DDE8;}
.article-body a{color:var(--brand-2);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--brand);}
.article-body ul,.article-body ol{margin-left:24px;}
.article-body ul{list-style:none;}
.article-body ul li{position:relative;padding-left:18px;}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.78em;width:7px;height:7px;border-radius:2px;
  background:var(--brand);opacity:.85;
}
.article-body ol{list-style:decimal;}
.article-body ol li::marker{color:var(--brand);font-weight:600;}
.article-body li + li{margin-top:10px;}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-left:3px solid var(--brand-2);
  background:var(--bg-1);border-radius:0 var(--r-list) var(--r-list) 0;color:var(--t2);
}
.article-body blockquote p{color:var(--t2);margin:0;}
.article-body img{border-radius:var(--r-img);width:100%;height:auto;margin:26px 0 10px;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--t3);text-align:center;margin-top:8px;}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;display:block;overflow-x:auto;
  border-radius:var(--r-list);border:1px solid var(--glass-line);
}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid rgba(255,255,255,.07);text-align:left;white-space:nowrap;}
.article-body thead th{background:var(--bg-3);color:var(--t1);font-weight:600;}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.03);}
.article-body hr{border:0;border-top:1px solid rgba(255,255,255,.10);margin:34px 0;}

.article-empty{
  background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-card);
  padding:48px 28px;text-align:center;box-shadow:var(--shadow-card);
}
.article-empty .icon{
  width:56px;height:56px;border-radius:50%;margin:0 auto 18px;display:flex;align-items:center;justify-content:center;
  background:rgba(23,226,177,.10);border:1px solid var(--brand-line);color:var(--brand);
}
.article-empty h2{font-size:22px;margin-bottom:10px;}
.article-empty p{color:var(--t2);font-size:15px;margin-bottom:22px;}

/* ---------- 侧栏 ---------- */
.side{position:sticky;top:calc(var(--nav-h) + 20px);display:grid;gap:18px;}
.card{
  background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow-card);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--brand-line);}
.card h3{font-size:16px;font-weight:600;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.card h3::before{content:"";width:18px;height:3px;border-radius:2px;background:var(--brand-2);}
.info-list{display:grid;gap:12px;font-size:14px;color:var(--t2);}
.info-list li{display:flex;justify-content:space-between;gap:10px;padding-bottom:12px;border-bottom:1px dashed rgba(255,255,255,.09);}
.info-list li:last-child{border-bottom:0;padding-bottom:0;}
.info-list b{color:var(--t1);font-weight:600;font-variant-numeric:tabular-nums;}
.side-links{display:grid;gap:10px;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 14px;border-radius:var(--r-list);font-size:14px;color:var(--t2);
  background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.07);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.side-links a:hover{color:var(--t1);border-color:var(--brand-line);background:rgba(23,226,177,.06);}
.side-links a em{font-style:normal;color:var(--brand);font-size:12px;letter-spacing:.06em;}
.side-form{display:grid;gap:10px;margin-top:12px;}
.side-form input{
  height:42px;border-radius:var(--r-input);background:var(--bg-2);
  border:1px solid rgba(255,255,255,.12);padding:0 14px;font-size:14px;color:var(--t1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.side-form input::placeholder{color:var(--t3);}
.side-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,226,177,.18);}
.side-form input.is-error{border-color:var(--err);}
.side-note{font-size:12px;color:var(--t3);line-height:1.6;}

/* ---------- 底部操作 ---------- */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:56px;}
.post-card{
  background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow-card);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--brand-line);}
.post-card .label{font-size:12px;letter-spacing:.1em;color:var(--t3);margin-bottom:10px;display:block;}
.post-card .title{font-size:17px;font-weight:600;line-height:1.5;color:var(--t1);}
.post-card .desc{font-size:14px;color:var(--t2);margin-top:8px;}
.post-card .arrow{color:var(--brand);font-size:14px;margin-top:14px;display:inline-flex;align-items:center;gap:6px;}
.post-back{display:flex;justify-content:center;margin-top:28px;}

/* ---------- 相关推荐 ---------- */
.related-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-card);display:flex;flex-direction:column;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--brand-line);}
.rel-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-2);}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.05);}
.rel-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,18,0) 40%,rgba(7,11,18,.72) 100%);}
.rel-body{padding:18px;display:flex;flex-direction:column;gap:10px;}
.rel-body .cat{font-size:12px;color:var(--brand-2);letter-spacing:.08em;}
.rel-body h3{font-size:17px;font-weight:600;line-height:1.5;}
.rel-body p{font-size:14px;color:var(--t2);}
.rel-body .go{margin-top:auto;font-size:14px;color:var(--brand);font-weight:600;}

/* ---------- CTA ---------- */
.cta-bar{
  margin-top:72px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  background:linear-gradient(120deg,rgba(23,226,177,.12),rgba(107,232,255,.06) 55%,rgba(255,122,47,.10));
  border:1px solid var(--brand-line);border-radius:var(--r-card);padding:28px 30px;
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:var(--shadow-card);
}
.cta-bar h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;line-height:1.35;}
.cta-bar p{color:var(--t2);font-size:14px;margin-top:8px;max-width:56ch;}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:14px;max-width:820px;margin:0 auto;}
.faq-item{
  background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-list);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:var(--brand-line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:17px;font-weight:600;text-align:left;color:var(--t1);line-height:1.5;
}
.faq-q .pm{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--brand-line);color:var(--brand);font-size:16px;line-height:1;
  transition:transform .25s ease,background .2s ease;
}
.faq-item.is-open .faq-q .pm{transform:rotate(180deg);background:rgba(23,226,177,.12);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a-inner{padding:0 22px 20px;border-left:2px solid var(--brand);margin-left:22px;padding-left:18px;color:var(--t2);font-size:15px;line-height:1.85;}
.faq-item.is-open .faq-a{max-height:320px;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:72px;border-top:1px solid rgba(255,255,255,.08);background:rgba(9,14,22,.72);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:32px;}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{color:var(--t2);font-size:14px;line-height:1.8;max-width:34ch;}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--t1);}
.footer-col ul{display:grid;gap:10px;}
.footer-col ul a{font-size:14px;color:var(--t2);}
.footer-col ul a:hover{color:var(--brand-2);text-decoration:underline;text-underline-offset:3px;}
.sub-form{display:flex;gap:10px;margin-top:14px;}
.sub-form input{
  flex:1;min-width:0;height:40px;border-radius:var(--r-input);background:var(--bg-2);
  border:1px solid rgba(255,255,255,.12);padding:0 12px;font-size:14px;color:var(--t1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.sub-form input::placeholder{color:var(--t3);}
.sub-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,226,177,.18);}
.footer-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:24px;border-top:1px solid rgba(255,255,255,.07);}
.footer-tags a{
  font-size:13px;color:var(--t2);padding:7px 14px;border-radius:999px;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.09);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.footer-tags a:hover{color:var(--t1);border-color:var(--brand-line);background:rgba(23,226,177,.08);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:26px;padding-top:20px;border-top:1px solid rgba(255,255,255,.07);
  font-size:13px;color:var(--t3);
}
.footer-bottom .links{display:flex;gap:18px;}
.footer-bottom .links a{color:var(--t3);}
.footer-bottom .links a:hover{color:var(--brand-2);}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:36px;}
}
@media (max-width:1024px){
  .nav-menu{display:none;}
  .burger{display:inline-flex;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .side{position:static;margin-top:44px;grid-template-columns:repeat(2,minmax(0,1fr));}
  .related-list{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .section{padding:64px 0;}
}
@media (max-width:768px){
  :root{--nav-h:56px;}
  .container{padding:0 18px;}
  .section{padding:48px 0;}
  .nav{gap:14px;}
  .brand-chip{display:none;}
  .nav-right .btn{display:none;}
  .article-header h1{font-size:28px;max-width:none;}
  .article-body{font-size:16px;line-height:1.85;max-width:none;}
  .article-body h2{font-size:21px;margin-top:32px;}
  .side{grid-template-columns:minmax(0,1fr);}
  .related-list{grid-template-columns:minmax(0,1fr);}
  .post-nav{grid-template-columns:minmax(0,1fr);}
  .cta-bar{padding:22px;margin-top:48px;}
  .cta-bar .btn{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-q{font-size:16px;padding:16px 18px;}
}
@media (max-width:520px){
  .article-header h1{font-size:24px;}
  .meta-row{font-size:12px;gap:8px;}
  .tag-row{gap:8px;}
  .search-form{flex-direction:column;}
  .search-form .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root{
  --bg-base:#070B12;
  --bg-1:#0C131F;
  --bg-2:#111B2B;
  --bg-3:#16223A;
  --brand:#17E2B1;
  --brand-2:#6BE8FF;
  --accent:#FF7A2F;
  --t1:#F2F6FB;
  --t2:#A9B6C6;
  --t3:#6C7A8C;
  --glass:rgba(255,255,255,.055);
  --glass-2:rgba(255,255,255,.085);
  --line:rgba(255,255,255,.10);
  --line-brand:rgba(23,226,177,.18);
  --ok:#3DD68C;
  --warn:#FFB020;
  --err:#FF5A5A;
  --info:#6BE8FF;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06),0 12px 40px rgba(0,0,0,.38);
  --shadow-hover:inset 0 1px 0 rgba(255,255,255,.09),0 18px 50px rgba(0,0,0,.48);
  --glow:0 0 0 1px rgba(23,226,177,.45),0 8px 26px rgba(23,226,177,.28);
  --container:1240px;
  --font-num:"DIN Alternate","Roboto Mono",ui-monospace,monospace;
}

/* ===== 基础 reset ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--t1);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(900px 520px at 10% -10%,rgba(23,226,177,.11),transparent 62%),
    radial-gradient(760px 440px at 94% 2%,rgba(107,232,255,.09),transparent 64%);
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px;border-radius:6px;}
.site-header,.page-hero,main,.site-footer{position:relative;z-index:1;}

/* ===== 容器与排版 ===== */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:820px;margin-bottom:40px;}
.section-head h2{
  font-size:clamp(24px,2.8vw,34px);
  line-height:1.25;font-weight:700;letter-spacing:.01em;
}
.section-head h2::before{
  content:"";display:block;width:28px;height:3px;border-radius:2px;
  background:var(--brand-2);margin-bottom:14px;
}
.section-head p{margin-top:14px;color:var(--t2);font-size:16px;max-width:70ch;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;color:var(--brand-2);
  text-transform:uppercase;margin-bottom:12px;
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,opacity .2s ease;
  white-space:nowrap;
}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-primary{
  background:var(--brand);color:#04211A;
  box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(23,226,177,.45),0 12px 34px rgba(23,226,177,.45);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(23,226,177,.35);}
.btn-ghost{
  background:var(--glass);border:1px solid rgba(255,255,255,.18);color:var(--t1);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-2);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn:disabled,.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.btn .arrow{transition:transform .25s ease;}
.btn:hover .arrow{transform:translateX(3px);}
.link-more{color:var(--brand-2);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.link-more span{transition:transform .25s ease;}
.link-more:hover span{transform:translateX(3px);}
.link-more:hover{text-decoration:underline;text-underline-offset:4px;}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:var(--r-pill);
  font-size:12px;line-height:1;letter-spacing:.06em;font-weight:600;
  border:1px solid transparent;
}
.badge-live{background:var(--accent);color:#2A0F00;}
.badge-live .dot{
  width:6px;height:6px;border-radius:50%;background:#2A0F00;
  animation:pulse 2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.35;transform:scale(.8);}}
.badge-soon{background:rgba(23,226,177,.12);border-color:var(--line-brand);color:var(--brand);}
.badge-replay{background:rgba(107,232,255,.12);border-color:rgba(107,232,255,.28);color:var(--brand-2);}
.badge-outline{background:var(--glass);border-color:var(--line);color:var(--t2);}
.tag{
  display:inline-block;padding:5px 11px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);
  font-size:12px;line-height:1.5;color:var(--t2);letter-spacing:.04em;
  transition:border-color .2s ease,color .2s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand-2);}

/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.is-scrolled{
  background:rgba(7,11,18,.78);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav{display:flex;align-items:center;gap:26px;min-height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-name{font-size:18px;font-weight:700;letter-spacing:.02em;}
.brand-chip{
  font-size:12px;line-height:1.4;padding:3px 9px;border-radius:var(--r-pill);
  border:1px solid var(--brand);color:var(--brand);letter-spacing:.08em;
}
.nav-menu{display:flex;align-items:center;gap:4px;}
.nav-menu a{
  position:relative;padding:9px 13px;border-radius:var(--r-pill);
  font-size:15px;color:var(--t2);transition:color .2s ease,background .2s ease;
}
.nav-menu a:hover{color:var(--t1);background:var(--glass);}
.nav-menu a.is-active{color:var(--t1);font-weight:600;}
.nav-menu a.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand);
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-pill);background:var(--glass);border:1px solid var(--line);
  color:var(--t2);transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.icon-btn svg{width:19px;height:19px;}
.icon-btn:hover{color:var(--brand);border-color:var(--line-brand);background:var(--glass-2);}
.burger{display:none;}
.search-layer{
  overflow:hidden;max-height:0;border-top:1px solid transparent;
  transition:max-height .3s ease,border-color .3s ease,background .3s ease;
}
.search-layer.is-open{
  max-height:130px;border-top-color:var(--line);
  background:rgba(7,11,18,.92);backdrop-filter:blur(14px);
}
.search-form{display:flex;gap:12px;padding:16px 0;}
.search-form input{
  flex:1;min-height:44px;padding:0 16px;border-radius:var(--r-sm);
  background:var(--bg-2);border:1px solid var(--line);color:var(--t1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form input::placeholder{color:var(--t3);}
.search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,226,177,.16);}

/* ===== 抽屉 ===== */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;z-index:120;
  background:var(--bg-1);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .32s cubic-bezier(.4,0,.2,1);
  padding:20px;display:flex;flex-direction:column;gap:22px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  padding:12px 14px;border-radius:var(--r-sm);color:var(--t2);font-size:15px;
  border:1px solid transparent;transition:all .2s ease;
}
.drawer-nav a:hover{background:var(--glass);color:var(--t1);}
.drawer-nav a.is-active{color:var(--brand);border-color:var(--line-brand);background:rgba(23,226,177,.07);}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;}
.drawer-foot p{font-size:13px;color:var(--t3);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,6,10,.66);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ===== 分类页 Hero ===== */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.page-hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.46;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,18,.62) 0%,rgba(7,11,18,.86) 62%,var(--bg-base) 100%);
}
.page-hero .container{
  position:relative;z-index:2;
  min-height:372px;padding-top:22px;padding-bottom:52px;
  display:flex;flex-direction:column;justify-content:flex-end;
}
.breadcrumb{
  margin-bottom:auto;padding-top:8px;
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t3);
}
.breadcrumb a{color:var(--t3);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--brand-2);}
.breadcrumb em{font-style:normal;color:var(--t2);}
.status-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;}
.page-hero h1{
  font-size:clamp(30px,4.4vw,54px);
  line-height:1.15;font-weight:700;letter-spacing:.01em;max-width:20ch;
}
.hero-sub{
  margin-top:18px;max-width:66ch;color:var(--t2);font-size:17px;line-height:1.8;
}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}

/* ===== 时间轴 ===== */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px;}
.filter-pill{
  padding:8px 16px;border-radius:var(--r-pill);font-size:14px;
  background:var(--glass);border:1px solid var(--line);color:var(--t2);
  transition:all .2s ease;
}
.filter-pill:hover{color:var(--t1);border-color:var(--line-brand);}
.filter-pill.is-active{
  background:rgba(23,226,177,.14);border-color:var(--brand);color:var(--brand);font-weight:600;
}
.timeline{position:relative;padding-bottom:8px;}
.timeline::before{
  content:"";position:absolute;left:86px;top:10px;bottom:10px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(107,232,255,.55),rgba(23,226,177,.5),rgba(23,226,177,.06));
}
.tl-item{
  position:relative;display:grid;grid-template-columns:80px 1fr;gap:34px;
  padding-bottom:26px;
}
.tl-node{
  position:absolute;left:78px;top:9px;width:16px;height:16px;border-radius:50%;
  background:var(--bg-base);border:2px solid var(--brand);
  box-shadow:0 0 0 4px rgba(23,226,177,.10);
}
.tl-item.is-live .tl-node{border-color:var(--accent);box-shadow:0 0 0 4px rgba(255,122,47,.14);}
.tl-time{
  padding-top:2px;text-align:right;font-family:var(--font-num);
  font-variant-numeric:tabular-nums;font-size:19px;font-weight:700;color:var(--accent);
  letter-spacing:.02em;
}
.tl-body{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px 24px;backdrop-filter:blur(12px);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.tl-body:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--line-brand);}
.tl-top{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;flex-wrap:wrap;}
.tl-top h3{font-size:20px;line-height:1.4;font-weight:600;}
.tl-body p{margin-top:12px;color:var(--t2);font-size:15px;line-height:1.75;max-width:74ch;}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tl-links{display:flex;gap:18px;margin-top:16px;flex-wrap:wrap;}

/* ===== 倒计时 ===== */
.cd-wrap{
  display:grid;grid-template-columns:1.25fr .75fr;gap:28px;align-items:center;
  background:linear-gradient(135deg,rgba(23,226,177,.09),rgba(107,232,255,.05) 55%,transparent 100%);
  border:1px solid var(--line-brand);border-radius:var(--r-lg);
  padding:32px;backdrop-filter:blur(12px);box-shadow:var(--shadow-card);
}
.cd-label{font-size:13px;letter-spacing:.12em;color:var(--brand-2);margin-bottom:10px;}
.cd-title{font-size:22px;font-weight:600;line-height:1.4;}
.cd-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;align-items:center;color:var(--t2);font-size:14px;}
.cd-boxes{display:flex;align-items:center;gap:10px;margin-top:24px;}
.cd-box{
  min-width:74px;padding:12px 10px;border-radius:var(--r-md);text-align:center;
  background:var(--bg-2);border:1px solid rgba(255,122,47,.42);
  box-shadow:inset 0 2px 10px rgba(0,0,0,.5);
}
.cd-box b{
  display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:38px;line-height:1.1;color:var(--accent);font-weight:700;
}
.cd-box span{display:block;margin-top:4px;font-size:12px;color:var(--t3);letter-spacing:.06em;}
.cd-colon{
  font-family:var(--font-num);font-size:30px;color:var(--brand-2);
  animation:blink 1s steps(1,end) infinite;
}
@keyframes blink{0%,49%{opacity:1;}50%,100%{opacity:.2;}}
.cd-side{display:flex;flex-direction:column;gap:16px;align-items:flex-start;}
.cd-side p{color:var(--t2);font-size:14px;line-height:1.7;}

/* ===== 步骤 ===== */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px;backdrop-filter:blur(12px);box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--line-brand);}
.step-num{
  font-family:var(--font-num);font-size:38px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px var(--brand);letter-spacing:.04em;
}
.step-card h3{margin-top:16px;font-size:19px;font-weight:600;}
.step-card p{margin-top:10px;color:var(--t2);font-size:15px;line-height:1.75;}
.step-tip{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--t3);
}

/* ===== 订阅表单 ===== */
.sub-panel{
  display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:36px;box-shadow:var(--shadow-card);
}
.sub-panel h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3;font-weight:700;}
.sub-panel h2::before{
  content:"";display:block;width:28px;height:3px;border-radius:2px;background:var(--brand-2);margin-bottom:14px;
}
.sub-panel .desc{margin-top:14px;color:var(--t2);font-size:15px;line-height:1.8;}
.benefit-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.chip-group{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;}
.chip{
  padding:9px 16px;border-radius:var(--r-pill);font-size:14px;
  background:var(--bg-2);border:1px solid var(--line);color:var(--t2);
  transition:all .2s ease;
}
.chip:hover{border-color:var(--line-brand);color:var(--t1);}
.chip.is-active{background:rgba(23,226,177,.14);border-color:var(--brand);color:var(--brand);font-weight:600;}
.field{display:flex;gap:12px;flex-wrap:wrap;}
.field input{
  flex:1;min-width:210px;min-height:46px;padding:0 16px;border-radius:var(--r-sm);
  background:var(--bg-2);border:1px solid var(--line);color:var(--t1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:var(--t3);}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,226,177,.16);}
.field input.is-error{border-color:var(--err);border-left:3px solid var(--err);}
.form-note{margin-top:14px;font-size:13px;color:var(--t3);}
.form-note.ok{color:var(--ok);}
.form-note.err{color:var(--err);}

/* ===== 图文卡片 ===== */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.cover-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-1);
  box-shadow:var(--shadow-card);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.cover-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--line-brand);}
.cover-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;}
.cover-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.cover-card:hover .thumb img{transform:scale(1.04);}
.cover-card .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,18,.05),rgba(7,11,18,.78));
}
.cover-card .corner{
  position:absolute;top:14px;right:14px;z-index:2;
}
.cover-card .caption{
  position:absolute;left:20px;right:20px;bottom:16px;z-index:2;
  font-size:18px;font-weight:600;line-height:1.4;
}
.cover-card .body{padding:20px 22px 24px;}
.cover-card .body p{color:var(--t2);font-size:15px;line-height:1.75;}
.cover-card .body .link-more{margin-top:14px;}

/* ===== FAQ ===== */
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .25s ease,background .25s ease;
}
.faq-item:hover{border-color:var(--line-brand);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:17px;font-weight:600;line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:22px;line-height:1;color:var(--brand);
  transition:transform .25s ease;flex-shrink:0;
}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg);}
.faq-body{
  margin:0 0 18px 22px;padding:4px 22px 0;
  border-left:2px solid var(--brand);color:var(--t2);font-size:15px;line-height:1.85;
}

/* ===== CTA 条 ===== */
.cta-band{padding:0 0 88px;}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:34px 36px;border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(23,226,177,.14),rgba(12,19,31,.9) 58%);
  border:1px solid var(--line-brand);backdrop-filter:blur(12px);
  box-shadow:var(--shadow-card);
}
.cta-inner h2{font-size:clamp(20px,2.3vw,28px);font-weight:700;line-height:1.35;}
.cta-inner p{margin-top:10px;color:var(--t2);font-size:15px;max-width:60ch;}

/* ===== 页脚 ===== */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,19,31,.6),rgba(7,11,18,1));
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;
  padding-bottom:36px;border-bottom:1px solid var(--line);
}
.footer-brand p{margin-top:16px;color:var(--t2);font-size:14px;line-height:1.8;max-width:34ch;}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{color:var(--t2);font-size:14px;transition:color .2s ease;}
.footer-col ul a:hover{color:var(--brand-2);text-decoration:underline;text-underline-offset:3px;}
.sub-form{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap;}
.sub-form input{
  flex:1;min-width:150px;min-height:40px;padding:0 14px;border-radius:var(--r-sm);
  background:var(--bg-2);border:1px solid var(--line);color:var(--t1);font-size:14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.sub-form input::placeholder{color:var(--t3);}
.sub-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,226,177,.16);}
.footer-tags{
  display:flex;flex-wrap:wrap;gap:10px;padding:26px 0;
  border-bottom:1px solid var(--line);
}
.footer-tags a{
  font-size:13px;color:var(--t3);padding:5px 12px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);
  transition:color .2s ease,border-color .2s ease;
}
.footer-tags a:hover{color:var(--brand-2);border-color:var(--line-brand);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;color:var(--t3);font-size:13px;
}
.footer-bottom .links{display:flex;gap:18px;}
.footer-bottom a{color:var(--t3);transition:color .2s ease;}
.footer-bottom a:hover{color:var(--brand-2);text-decoration:underline;text-underline-offset:3px;}

/* ===== 断点 ===== */
@media (max-width:1280px){
  .cd-box b{font-size:34px;}
}
@media (max-width:1024px){
  .section{padding:64px 0;}
  .nav-menu{display:none;}
  .burger{display:inline-flex;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:1fr 1fr;}
  .sub-panel{grid-template-columns:1fr;gap:24px;}
  .cd-wrap{grid-template-columns:1fr;gap:22px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .page-hero .container{min-height:330px;}
}
@media (max-width:768px){
  .section{padding:48px 0;}
  .container{padding:0 18px;}
  .nav{min-height:56px;gap:14px;}
  .brand-name{font-size:16px;}
  .page-hero .container{min-height:300px;padding-bottom:40px;}
  .hero-sub{font-size:15px;}
  .timeline::before{left:7px;}
  .tl-item{grid-template-columns:1fr;gap:8px;padding-left:32px;}
  .tl-node{left:-1px;top:8px;width:14px;height:14px;}
  .tl-time{text-align:left;font-size:17px;}
  .tl-body{padding:18px;}
  .tl-top h3{font-size:18px;}
  .cd-boxes{gap:6px;flex-wrap:wrap;}
  .cd-box{min-width:62px;padding:10px 8px;}
  .cd-box b{font-size:40px;}
  .cd-boxes .cd-box b{font-size:34px;}
  .card-grid,.steps{grid-template-columns:1fr;}
  .cta-inner{padding:26px 22px;}
  .cta-band{padding-bottom:56px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:26px;}
  .sub-panel{padding:24px 20px;}
}
@media (max-width:520px){
  .page-hero h1{font-size:28px;}
  .cd-box b{font-size:28px;}
  .cd-box{min-width:54px;}
  .faq-item summary{font-size:16px;padding:16px 18px;}
  .faq-body{margin-left:18px;padding-right:18px;}
  .btn{width:100%;}
  .nav-right .btn-sm{display:none;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --bg-base:#070B12;
  --bg-1:#0C131F;
  --bg-2:#111B2B;
  --bg-3:#16223A;
  --brand:#17E2B1;
  --brand-2:#6BE8FF;
  --accent:#FF7A2F;
  --t1:#F2F6FB;
  --t2:#A9B6C6;
  --t3:#6C7A8C;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(23,226,177,.18);
  --glass:rgba(255,255,255,.055);
  --ok:#3DD68C;
  --warn:#FFB020;
  --err:#FF5A5A;
  --r-card:18px;
  --r-list:14px;
  --r-pill:999px;
  --r-input:12px;
  --r-img:16px;
  --shadow:inset 0 1px 0 rgba(255,255,255,.06), 0 12px 40px rgba(0,0,0,.38);
  --shadow-hover:inset 0 1px 0 rgba(255,255,255,.08), 0 22px 50px rgba(0,0,0,.48);
  --container:1240px;
  --gap:24px;
  --sec:88px;
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --mono:"DIN Alternate","Roboto Mono",ui-monospace,monospace;
}
/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--t1);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 82% -8%, rgba(23,226,177,.13), transparent 62%),
    radial-gradient(760px 460px at 6% 4%, rgba(107,232,255,.09), transparent 60%);
  pointer-events:none;
  z-index:0;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s ease, border-color .2s ease, background-color .2s ease;}
img{max-width:100%;display:block;border-radius:var(--r-img);}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(23,226,177,.32);color:#fff;}
/* ============ 容器与通用排版 ============ */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.section{padding:var(--sec) 0;}
.section-sm{padding:56px 0;}
.section-head{max-width:820px;margin-bottom:40px;}
.section-head h2{
  font-size:clamp(24px,2.8vw,34px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:.01em;
}
.section-head h2::before{
  content:"";
  display:block;
  width:28px;
  height:3px;
  border-radius:2px;
  background:var(--brand-2);
  margin-bottom:16px;
}
.section-head .sub{margin-top:14px;color:var(--t2);font-size:16px;line-height:1.8;max-width:76ch;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--brand-2);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--brand-2);border-radius:2px;}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:transform .2s ease, box-shadow .25s ease, background-color .2s ease, border-color .2s ease, opacity .2s ease;
  white-space:nowrap;
}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-primary{
  background:var(--brand);
  color:#04211A;
  box-shadow:0 0 0 1px rgba(23,226,177,.45), 0 8px 26px rgba(23,226,177,.28);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(23,226,177,.55), 0 12px 34px rgba(23,226,177,.42);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(23,226,177,.4);}
.btn-ghost{
  background:rgba(255,255,255,.03);
  border-color:rgba(255,255,255,.18);
  color:var(--t1);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-2);font-weight:600;font-size:15px;
}
.text-link svg{transition:transform .2s ease;}
.text-link:hover svg{transform:translateX(3px);}
/* ============ 徽章 / 胶囊 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:var(--r-pill);
  font-size:12px;line-height:1;letter-spacing:.04em;font-weight:600;
  white-space:nowrap;
}
.badge-live{background:var(--accent);color:#2A0F02;}
.badge-outline{border:1px solid var(--line-strong);color:var(--brand);background:rgba(23,226,177,.06);}
.badge-muted{background:rgba(107,232,255,.10);color:var(--brand-2);border:1px solid rgba(107,232,255,.22);}
.badge-soft{background:rgba(255,255,255,.06);color:var(--t2);border:1px solid var(--line);}
.dot{
  width:7px;height:7px;border-radius:50%;background:#2A0F02;
  animation:pulse 2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.78);}}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;
  padding:7px 14px;border-radius:var(--r-pill);
  font-size:13px;color:var(--t2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.tag:hover{border-color:var(--line-strong);color:var(--t1);background:rgba(23,226,177,.07);}
/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .25s ease, backdrop-filter .25s ease, border-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(7,11,18,.78);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav{
  height:64px;
  display:flex;align-items:center;gap:28px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-name{font-size:18px;font-weight:700;letter-spacing:.02em;color:var(--t1);}
.brand-chip{
  font-size:12px;line-height:1;padding:6px 10px;border-radius:var(--r-pill);
  border:1px solid rgba(23,226,177,.5);color:var(--brand);
  letter-spacing:.06em;
  transition:background-color .2s ease,color .2s ease;
}
.brand:hover .brand-chip{background:rgba(23,226,177,.12);}
.nav-menu{display:flex;align-items:center;gap:6px;flex:1;}
.nav-menu a{
  position:relative;
  display:inline-flex;align-items:center;
  height:64px;padding:0 14px;
  font-size:15px;color:var(--t2);font-weight:500;
}
.nav-menu a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:14px;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-menu a:hover{color:var(--t1);}
.nav-menu a:hover::after{transform:scaleX(1);}
.nav-menu a.is-active{color:var(--t1);font-weight:600;}
.nav-menu a.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--t2);border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
.icon-btn svg{width:19px;height:19px;}
.icon-btn:hover{color:var(--brand);border-color:var(--line-strong);background:rgba(23,226,177,.08);}
.burger{display:none;}
.search-layer{
  max-height:0;overflow:hidden;
  border-top:1px solid transparent;
  background:rgba(9,14,23,.94);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:max-height .3s ease,border-color .3s ease;
}
.search-layer.is-open{max-height:120px;border-top-color:var(--line);}
.search-form{display:flex;gap:12px;padding:18px 0;}
.search-form input{
  flex:1;min-height:46px;padding:0 16px;
  background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--r-input);color:var(--t1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form input::placeholder{color:var(--t3);}
.search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,226,177,.18);}
/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,6,11,.72);
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:var(--bg-1);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .3s cubic-bezier(.4,0,.2,1);
  z-index:95;padding:22px;display:flex;flex-direction:column;gap:22px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  padding:13px 14px;border-radius:var(--r-list);font-size:15px;color:var(--t2);
  border:1px solid transparent;transition:all .2s ease;
}
.drawer-nav a:hover{background:rgba(255,255,255,.05);color:var(--t1);border-color:var(--line);}
.drawer-nav a.is-active{background:rgba(23,226,177,.10);border-color:var(--line-strong);color:var(--brand);font-weight:600;}
.drawer .btn{width:100%;}
/* ============ Hero（4:8 非对称） ============ */
.hero{
  padding:56px 0 72px;
  position:relative;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(180deg, rgba(7,11,18,.86) 0%, rgba(7,11,18,.95) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
}
.hero-grid{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:48px;
  align-items:start;
}
.hero-side{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:var(--shadow);
  position:sticky;top:96px;
}
.side-title{
  font-size:13px;letter-spacing:.08em;color:var(--t3);
  text-transform:uppercase;font-weight:600;margin-bottom:14px;
}
.side-nav{display:flex;flex-direction:column;gap:2px;}
.side-nav a{
  display:flex;align-items:center;gap:10px;
  padding:11px 12px;border-radius:var(--r-list);
  font-size:14.5px;color:var(--t2);
  border-left:2px solid transparent;
  transition:all .2s ease;
}
.side-nav a::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--t3);flex-shrink:0;transition:background-color .2s ease;
}
.side-nav a:hover{color:var(--t1);background:rgba(255,255,255,.05);}
.side-nav a:hover::before{background:var(--brand-2);}
.side-note{
  margin-top:20px;padding-top:18px;border-top:1px solid var(--line);
}
.side-note p{margin-top:12px;font-size:13.5px;line-height:1.7;color:var(--t3);}
.hero-main .badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px;}
.hero-main h1{
  font-size:clamp(30px,4.4vw,54px);
  line-height:1.15;font-weight:700;letter-spacing:.01em;
}
.hero-main .lead{
  margin-top:20px;font-size:17px;line-height:1.85;color:var(--t2);max-width:62ch;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-main .tag-row{margin-top:28px;}
.stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;margin-top:32px;padding-top:26px;border-top:1px solid var(--line);
}
.stat b{
  display:block;font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-size:28px;line-height:1.1;color:var(--brand);font-weight:700;
}
.stat span{display:block;margin-top:6px;font-size:13.5px;color:var(--t3);}
.stat.accent b{color:var(--accent);}
/* ============ 步骤卡序列 ============ */
.steps-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:var(--gap);
}
.step-card{
  position:relative;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 24px 24px;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:var(--shadow);
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--line-strong);}
.step-card .mini-tag{
  position:absolute;top:14px;right:16px;
  font-size:12px;letter-spacing:.04em;color:var(--brand-2);
  border:1px solid rgba(107,232,255,.22);background:rgba(107,232,255,.08);
  padding:5px 10px;border-radius:var(--r-pill);
}
.step-num{
  font-family:var(--mono);font-size:44px;line-height:1;font-weight:700;
  color:transparent;
  -webkit-text-stroke:1.5px rgba(23,226,177,.62);
  letter-spacing:.02em;
}
.step-card h3{margin-top:14px;font-size:21px;font-weight:600;line-height:1.4;}
.step-card p{margin-top:12px;color:var(--t2);font-size:15.5px;line-height:1.85;}
.tip-row{
  display:flex;gap:10px;align-items:flex-start;
  margin-top:18px;padding:12px 14px;
  background:var(--bg-1);
  border-left:2px solid var(--brand);
  border-radius:0 var(--r-list) var(--r-list) 0;
  font-size:13.5px;color:var(--t2);line-height:1.7;
}
.tip-row svg{width:16px;height:16px;flex-shrink:0;margin-top:3px;color:var(--brand);}
/* ============ 设备对照 ============ */
.device-wrap{
  display:grid;grid-template-columns:7fr 5fr;gap:36px;align-items:center;
}
.table-scroll{
  overflow-x:auto;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--bg-1);
  box-shadow:var(--shadow);
}
table{width:100%;border-collapse:collapse;min-width:520px;}
thead th{
  text-align:left;font-size:13px;letter-spacing:.06em;color:var(--t3);
  font-weight:600;padding:16px 18px;background:var(--bg-2);
  border-bottom:1px solid var(--line);white-space:nowrap;
}
tbody td{
  padding:15px 18px;font-size:14.5px;color:var(--t2);
  border-bottom:1px solid rgba(255,255,255,.06);
}
tbody tr:nth-child(even){background:rgba(255,255,255,.022);}
tbody tr:last-child td{border-bottom:0;}
tbody tr:hover{background:rgba(23,226,177,.06);}
tbody td:first-child{color:var(--t1);font-weight:600;}
.count-badge{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:26px;height:22px;padding:0 8px;border-radius:var(--r-pill);
  background:rgba(23,226,177,.14);color:var(--brand);
  font-size:12px;font-weight:700;font-family:var(--mono);
}
.device-figure{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.device-figure img{width:100%;height:300px;object-fit:cover;border-radius:0;}
.device-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,18,.05),rgba(7,11,18,.82));
}
.device-figure figcaption{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
  font-size:14px;color:var(--t2);line-height:1.7;
}
.device-figure figcaption strong{display:block;color:var(--t1);font-size:17px;margin-bottom:6px;}
/* ============ 受阻排查列表 ============ */
.check-list{display:grid;gap:14px;}
.check-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-list);
  padding:20px;
  transition:border-color .2s ease, transform .2s ease;
}
.check-item:hover{border-color:var(--line-strong);transform:translateY(-2px);}
.check-idx{
  flex-shrink:0;width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,122,47,.14);color:var(--accent);
  font-family:var(--mono);font-weight:700;font-size:14px;
}
.check-body h3{font-size:17px;font-weight:600;}
.check-body p{margin-top:8px;font-size:14.5px;color:var(--t2);line-height:1.8;}
.check-body .fix{
  display:inline-flex;align-items:center;gap:7px;margin-top:10px;
  font-size:13.5px;color:var(--ok);
}
.check-body .fix::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ok);}
/* ============ FAQ ============ */
.faq-col{max-width:820px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--r-list);
  background:var(--glass);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s ease, background-color .2s ease;
}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item.is-open{border-color:var(--line-strong);background:var(--bg-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;
  font-size:17px;font-weight:600;color:var(--t1);
}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);color:var(--brand-2);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;line-height:1;transition:transform .25s ease,border-color .2s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);border-color:var(--line-strong);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s ease;
  background:var(--bg-1);
}
.faq-a .inner{
  padding:4px 20px 20px 22px;
  border-left:2px solid var(--brand);
  margin:0 20px 18px 20px;
  font-size:15px;color:var(--t2);line-height:1.85;
}
/* ============ CTA ============ */
.cta-bar{
  margin-top:72px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  background:linear-gradient(90deg,rgba(23,226,177,.14),rgba(107,232,255,.06) 55%,rgba(255,255,255,.03));
  border:1px solid var(--line-strong);
  border-radius:var(--r-card);
  padding:30px 34px;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:var(--shadow);
}
.cta-bar h2{font-size:clamp(20px,2.2vw,26px);line-height:1.35;font-weight:700;}
.cta-bar p{margin-top:10px;color:var(--t2);font-size:15px;line-height:1.8;max-width:60ch;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0;}
/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--sec);
  border-top:1px solid var(--line);
  background:var(--bg-1);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:36px;
}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--t2);line-height:1.8;max-width:34ch;}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--t1);}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:14px;color:var(--t2);}
.footer-col ul a:hover{color:var(--brand-2);text-decoration:underline;text-underline-offset:3px;}
.sub-form{display:flex;gap:10px;margin-top:14px;}
.sub-form input{
  flex:1;min-width:0;min-height:40px;padding:0 14px;
  background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--r-input);color:var(--t1);font-size:14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.sub-form input::placeholder{color:var(--t3);}
.sub-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,226,177,.18);}
.footer-tags{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:44px;padding-top:26px;border-top:1px solid var(--line);
}
.footer-tags a{
  font-size:13px;color:var(--t3);padding:6px 12px;
  border:1px solid var(--line);border-radius:var(--r-pill);
  transition:all .2s ease;
}
.footer-tags a:hover{color:var(--brand-2);border-color:var(--line-strong);background:rgba(23,226,177,.06);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  margin-top:28px;padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:var(--t3);
}
.footer-bottom .links{display:flex;gap:20px;}
.footer-bottom a:hover{color:var(--brand-2);text-decoration:underline;text-underline-offset:3px;}
/* ============ 断点 ============ */
@media (max-width:1200px){
  .hero-grid{grid-template-columns:4.5fr 7.5fr;gap:36px;}
  .device-wrap{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:1024px){
  :root{--sec:64px;}
  .nav-menu{display:none;}
  .burger{display:inline-flex;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-side{position:static;}
  .steps-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:26px;}
}
@media (max-width:768px){
  :root{--sec:48px;}
  .container{padding:0 18px;}
  .nav{height:56px;gap:16px;}
  .brand-name{font-size:17px;}
  .hero{padding:36px 0 52px;}
  .hero-main .lead{font-size:16px;}
  .hero-actions .btn{flex:1;justify-content:center;}
  .stats{grid-template-columns:1fr;gap:14px;}
  .stat b{font-size:24px;}
  .step-num{font-size:36px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-bar{margin-top:48px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;justify-content:center;}
}
@media (max-width:520px){
  .hero-main h1{font-size:29px;}
  .hero-main .badge-row{gap:8px;}
  .step-card{padding:22px 18px 20px;}
  .faq-q{font-size:15.5px;padding:16px;}
  .brand-chip{display:none;}
  .search-form{flex-direction:column;}
  .search-form input{min-height:44px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --bg-base:#070B12;
  --bg-1:#0C131F;
  --bg-2:#111B2B;
  --bg-3:#16223A;
  --brand:#17E2B1;
  --brand-2:#6BE8FF;
  --accent:#FF7A2F;
  --t1:#F2F6FB;
  --t2:#A9B6C6;
  --t3:#6C7A8C;
  --glass:rgba(255,255,255,.055);
  --line:rgba(255,255,255,.10);
  --line-brand:rgba(23,226,177,.18);
  --ok:#3DD68C;
  --warn:#FFB020;
  --err:#FF5A5A;
  --r-card:18px;
  --r-list:14px;
  --r-pill:999px;
  --r-input:12px;
  --r-cover:16px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06), 0 12px 40px rgba(0,0,0,.38);
  --shadow-hover:inset 0 1px 0 rgba(255,255,255,.08), 0 18px 52px rgba(0,0,0,.5);
  --sec:88px;
  --container:1240px;
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --font-num:"DIN Alternate","Roboto Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--t1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(23,226,177,.10), transparent 62%),
    radial-gradient(760px 460px at 92% 4%, rgba(107,232,255,.08), transparent 60%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .22s ease,border-color .22s ease,opacity .22s ease;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-primary{
  background:var(--brand);color:#04170F;
  box-shadow:0 0 0 1px rgba(23,226,177,.45),0 8px 26px rgba(23,226,177,.28);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(23,226,177,.45),0 12px 34px rgba(23,226,177,.45);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{
  background:rgba(255,255,255,.03);color:var(--t1);
  border-color:rgba(255,255,255,.18);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;}
.btn-num{font-variant-numeric:tabular-nums;font-family:var(--font-num);}

.link-more{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-size:14px;font-weight:600;
}
.link-more svg{width:16px;height:16px;transition:transform .22s ease;}
.link-more:hover svg{transform:translateX(3px);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .28s ease,border-color .28s ease,backdrop-filter .28s ease;
}
.site-header.is-scrolled{
  background:rgba(7,11,18,.78);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav{display:flex;align-items:center;gap:28px;height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-name{font-size:18px;font-weight:700;letter-spacing:.02em;color:var(--t1);}
.brand-chip{
  font-size:12px;letter-spacing:.08em;line-height:1;
  padding:6px 10px;border-radius:var(--r-pill);
  border:1px solid var(--brand);color:var(--brand);
}
.nav-menu{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav-menu a{
  position:relative;
  font-size:15px;color:var(--t2);padding:6px 0;
}
.nav-menu a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-menu a:hover{color:var(--t1);}
.nav-menu a:hover::after{transform:scaleX(1);}
.nav-menu a.is-active{color:var(--t1);font-weight:600;}
.nav-menu a.is-active::after{transform:scaleX(1);}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-pill);border:1px solid var(--line);
  background:rgba(255,255,255,.03);color:var(--t2);
  transition:color .22s ease,border-color .22s ease,background .22s ease;
}
.icon-btn svg{width:19px;height:19px;}
.icon-btn:hover{color:var(--brand);border-color:var(--line-brand);background:rgba(23,226,177,.07);}
.burger{display:none;}

.search-layer{
  max-height:0;overflow:hidden;
  background:rgba(12,19,31,.94);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:max-height .32s ease,border-color .32s ease;
}
.search-layer.is-open{max-height:120px;border-bottom-color:var(--line);}
.search-form{display:flex;gap:12px;padding:16px 0;}
.search-form input{
  flex:1;height:44px;padding:0 16px;border-radius:var(--r-input);
  background:var(--bg-2);border:1px solid var(--line);color:var(--t1);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.search-form input::placeholder{color:var(--t3);}
.search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,226,177,.22);}

/* ============ 抽屉 ============ */
.drawer{
  position:fixed;inset:0;z-index:150;
  background:rgba(7,11,18,.62);
  backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer.is-open{opacity:1;visibility:visible;}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(330px,86vw);
  background:var(--bg-1);border-left:1px solid var(--line);
  padding:22px 20px 32px;display:flex;flex-direction:column;gap:20px;
  transform:translateX(100%);transition:transform .32s ease;
}
.drawer.is-open .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-menu{display:flex;flex-direction:column;}
.drawer-menu a{
  padding:14px 4px;font-size:16px;color:var(--t2);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.drawer-menu a.is-active{color:var(--brand);font-weight:600;}
.drawer-menu a:hover{color:var(--t1);}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--t3);padding:18px 0;
}
.breadcrumb a:hover{color:var(--brand-2);}
.breadcrumb .sep{color:var(--t3);opacity:.7;}
.breadcrumb .current{color:var(--t2);}

/* ============ Hero（居中对称） ============ */
.page-hero{
  position:relative;
  padding:26px 0 66px;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(720px 340px at 50% 0%, rgba(23,226,177,.13), transparent 68%),
    linear-gradient(180deg, rgba(17,27,43,.55), rgba(7,11,18,0) 72%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(600px 300px at 50% 12%,#000,transparent 76%);
  -webkit-mask-image:radial-gradient(600px 300px at 50% 12%,#000,transparent 76%);
}
.hero-center{max-width:820px;margin:0 auto;text-align:center;display:flex;flex-direction:column;align-items:center;gap:20px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid var(--line-brand);background:rgba(23,226,177,.08);
  color:var(--brand);font-size:12px;letter-spacing:.08em;line-height:1;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(255,122,47,.16);animation:pulse 2s ease-in-out infinite;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.55;transform:scale(.86);}}
.page-hero h1{
  font-size:clamp(30px,4.4vw,52px);line-height:1.15;font-weight:700;letter-spacing:-.01em;
}
.page-hero h1 em{font-style:normal;color:var(--brand);}
.hero-lead{font-size:17px;line-height:1.85;color:var(--t2);max-width:700px;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;}
.chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:var(--r-pill);border:1px solid var(--line);
  background:var(--glass);color:var(--t2);font-size:13px;
  transition:border-color .22s ease,color .22s ease,background .22s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand);background:rgba(23,226,177,.08);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:4px;}

/* ============ 数据条 ============ */
.stats-strip{
  padding:34px 0;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(17,27,43,.45),rgba(7,11,18,0));
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat-item{
  padding:20px;
  border-radius:var(--r-list);
  background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.stat-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--line-brand);}
.stat-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:30px;font-weight:700;line-height:1.1;color:var(--brand);
}
.stat-num.is-accent{color:var(--accent);}
.stat-label{margin-top:8px;font-size:14px;color:var(--t2);}

/* ============ 通用板块 ============ */
.section{padding:var(--sec) 0;position:relative;}
.section + .section{padding-top:0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap;}
.section-head h2{
  font-size:clamp(24px,2.8vw,34px);line-height:1.25;font-weight:700;
  padding-left:0;position:relative;
}
.section-head h2::before{
  content:"";display:block;width:28px;height:3px;background:var(--brand-2);
  border-radius:2px;margin-bottom:16px;
}
.section-sub{font-size:15px;color:var(--t2);max-width:640px;margin-top:12px;line-height:1.8;}

.filter-row{display:flex;flex-wrap:wrap;gap:10px;}
.filter-chip{
  height:36px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  color:var(--t2);font-size:14px;
  transition:all .22s ease;
}
.filter-chip:hover{color:var(--t1);border-color:rgba(255,255,255,.26);}
.filter-chip.is-active{background:var(--brand);color:#04170F;border-color:var(--brand);font-weight:600;box-shadow:0 8px 22px rgba(23,226,177,.24);}

/* ============ 图文画廊网格 ============ */
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.media-card{
  border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.media-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--line-brand);}
.media-card.is-hidden{display:none;}
.media-link{display:block;height:100%;}
.media-thumb{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  border-radius:var(--r-cover) var(--r-cover) 0 0;background:var(--bg-2);
}
.media-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease;}
.media-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,18,.05) 26%,rgba(7,11,18,.88));
  transition:background .4s ease,opacity .4s ease;
}
.media-card:hover .media-thumb img{transform:scale(1.04);}
.media-card:hover .media-thumb::after{background:linear-gradient(180deg,rgba(7,11,18,.14) 20%,rgba(7,11,18,.94));}
.corner-tag{
  position:absolute;top:12px;right:12px;z-index:2;
  padding:5px 10px;border-radius:8px;
  background:rgba(7,11,18,.78);border:1px solid rgba(255,255,255,.16);
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:12px;color:var(--brand-2);letter-spacing:.04em;
}
.pill-tag{
  position:absolute;top:12px;left:12px;z-index:2;
  padding:5px 11px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.06em;line-height:1.4;
  background:rgba(23,226,177,.14);border:1px solid var(--line-brand);color:var(--brand);
}
.pill-tag.is-accent{background:rgba(255,122,47,.16);border-color:rgba(255,122,47,.4);color:var(--accent);}
.thumb-caption{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:18px;}
.thumb-caption h3{font-size:19px;line-height:1.4;font-weight:600;}
.thumb-caption p{margin-top:6px;font-size:13.5px;line-height:1.6;color:var(--t2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.media-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 18px;font-size:13px;color:var(--t3);
  border-top:1px solid rgba(255,255,255,.06);
}
.media-meta .go{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:5px;}
.media-meta .go svg{width:15px;height:15px;transition:transform .22s ease;}
.media-card:hover .media-meta .go svg{transform:translateX(3px);}

/* ============ 专题长卡 ============ */
.feature-banner{
  grid-column:1/-1;
  display:flex;align-items:center;gap:28px;
  padding:26px 28px;border-radius:var(--r-card);
  background:linear-gradient(120deg,rgba(23,226,177,.12),rgba(12,19,31,.9) 55%);
  border:1px solid var(--line-brand);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.feature-banner:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(23,226,177,.4);}
.feature-banner.is-hidden{display:none;}
.feature-thumb{
  width:180px;flex-shrink:0;aspect-ratio:16/9;border-radius:var(--r-cover);overflow:hidden;
  border:1px solid var(--line);
}
.feature-thumb img{width:100%;height:100%;object-fit:cover;}
.feature-text{flex:1;min-width:0;}
.feature-text .kicker{
  display:inline-block;font-size:12px;letter-spacing:.08em;color:var(--accent);
  margin-bottom:8px;
}
.feature-text h3{font-size:21px;line-height:1.4;font-weight:600;}
.feature-text p{margin-top:8px;font-size:14.5px;color:var(--t2);line-height:1.75;max-width:640px;}
.feature-cta{flex-shrink:0;}

/* ============ 观看路径 ============ */
.path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.path-card{
  position:relative;
  padding:28px 24px 26px;border-radius:var(--r-card);
  background:var(--bg-1);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.path-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--line-brand);}
.step-num{
  font-family:var(--font-num);font-size:38px;line-height:1;font-weight:700;
  color:transparent;-webkit-text-stroke:1.4px rgba(107,232,255,.7);
  letter-spacing:.02em;
}
.path-card h3{margin-top:16px;font-size:20px;font-weight:600;}
.path-card p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--t2);}
.path-card .hint{
  margin-top:16px;padding-top:14px;border-top:1px dashed rgba(255,255,255,.12);
  font-size:13px;color:var(--t3);
}
.path-card .hint b{color:var(--brand);font-weight:600;}

/* ============ 更新节奏（背景图板块） ============ */
.update-band{
  position:relative;border-radius:24px;overflow:hidden;
  border:1px solid var(--line);
  background-image:linear-gradient(120deg,rgba(7,11,18,.94),rgba(7,11,18,.72)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:44px 40px;
}
.update-head{max-width:620px;}
.update-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.3;}
.update-head h2::before{content:"";display:block;width:28px;height:3px;background:var(--brand-2);border-radius:2px;margin-bottom:16px;}
.update-head p{margin-top:12px;font-size:15px;color:var(--t2);line-height:1.8;}
.update-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px;}
.update-item{
  padding:20px;border-radius:var(--r-list);
  background:rgba(12,19,31,.72);border:1px solid var(--line);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.update-item .time{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:20px;color:var(--brand);font-weight:700;
}
.update-item h4{margin-top:10px;font-size:16px;font-weight:600;}
.update-item p{margin-top:6px;font-size:13.5px;color:var(--t2);line-height:1.7;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  border-radius:var(--r-list);border:1px solid var(--line);
  background:var(--bg-1);overflow:hidden;
  transition:border-color .25s ease,background .25s ease;
}
.faq-item:hover{border-color:var(--line-brand);}
.faq-item.is-open{border-color:var(--line-brand);background:var(--bg-2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 20px;text-align:left;
  font-size:17px;font-weight:600;color:var(--t1);
}
.faq-icon{
  position:relative;width:18px;height:18px;flex-shrink:0;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);
  transform:translate(-50%,-50%);transition:transform .25s ease,opacity .25s ease;
}
.faq-icon::before{width:14px;height:2px;border-radius:2px;}
.faq-icon::after{width:2px;height:14px;border-radius:2px;}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(180deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-item.is-open .faq-a{max-height:340px;}
.faq-a p{
  padding:0 20px 20px 20px;margin-left:0;font-size:15px;line-height:1.85;color:var(--t2);
  border-left:2px solid var(--brand);padding-left:18px;margin-left:20px;
}

/* ============ CTA 条 ============ */
.cta-band{padding:0 0 var(--sec);}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:32px 34px;border-radius:24px;
  background:linear-gradient(120deg,rgba(23,226,177,.14),rgba(17,27,43,.86) 60%);
  border:1px solid var(--line-brand);
  box-shadow:var(--shadow-card);
}
.cta-inner h2{font-size:clamp(20px,2.2vw,28px);font-weight:700;line-height:1.35;}
.cta-inner p{margin-top:10px;font-size:14.5px;color:var(--t2);max-width:620px;line-height:1.8;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,19,31,.7),rgba(7,11,18,.95));
  padding:64px 0 26px;position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:var(--t2);max-width:320px;}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--t1);}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:14px;color:var(--t2);}
.footer-col ul a:hover{color:var(--brand-2);text-decoration:underline;text-underline-offset:3px;}
.sub-form{margin-top:14px;display:flex;gap:10px;}
.sub-form input{
  flex:1;min-width:0;height:40px;padding:0 14px;border-radius:var(--r-input);
  background:var(--bg-2);border:1px solid var(--line);color:var(--t1);font-size:14px;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.sub-form input::placeholder{color:var(--t3);}
.sub-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,226,177,.22);}
.footer-tags{display:flex;flex-wrap:wrap;gap:10px;margin:44px 0 26px;padding-top:28px;border-top:1px solid var(--line);}
.footer-tags a{
  font-size:13px;color:var(--t2);padding:7px 13px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:all .22s ease;
}
.footer-tags a:hover{color:var(--brand);border-color:var(--line-brand);background:rgba(23,226,177,.07);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:var(--t3);
}
.footer-bottom .links{display:flex;gap:18px;}
.footer-bottom .links a:hover{color:var(--brand-2);text-decoration:underline;text-underline-offset:3px;}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  :root{--container:1140px;}
}
@media (max-width:1024px){
  :root{--sec:64px;}
  .nav-menu{display:none;}
  .burger{display:inline-flex;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .gallery-grid{grid-template-columns:repeat(2,1fr);}
  .path-grid{grid-template-columns:1fr;}
  .update-list{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:768px){
  :root{--sec:48px;}
  .container{padding:0 18px;}
  .nav{height:56px;gap:14px;}
  .brand-chip{font-size:11px;padding:5px 9px;}
  .nav-right .btn{display:none;}
  .page-hero{padding:10px 0 46px;}
  .hero-lead{font-size:15.5px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:18px;}
  .gallery-grid{grid-template-columns:1fr;gap:18px;}
  .feature-banner{flex-direction:column;align-items:flex-start;padding:22px;}
  .feature-thumb{width:100%;}
  .feature-cta{width:100%;}
  .feature-cta .btn{width:100%;}
  .update-band{padding:30px 22px;border-radius:18px;}
  .cta-inner{padding:26px 22px;border-radius:18px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-q{font-size:16px;padding:16px;}
  .faq-a p{margin-left:16px;padding-left:14px;}
}
@media (max-width:520px){
  .stats-grid{grid-template-columns:1fr;}
  .stat-num{font-size:26px;}
  .hero-actions{width:100%;flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .sub-form{flex-direction:column;}
  .sub-form .btn{width:100%;}
  .chip{font-size:12px;height:30px;padding:0 12px;}
  .thumb-caption h3{font-size:17px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}