/* roulang page: index */
:root{
  --green:#123C33;
  --green-deep:#0B1F1A;
  --lime:#C6FF4A;
  --orange:#FF7A45;
  --bg:#F6F7F4;
  --paper:#FFFFFF;
  --mint:#EEF3EF;
  --line:#DDE5DF;
  --teal:#2E9E83;
  --ink:#0F1A18;
  --ink-2:#4A5A55;
  --ink-3:#7C8B86;
  --on-dark:#F4FFF9;
  --r-xs:8px;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,60,51,.06);
  --sh-2:0 12px 32px rgba(18,60,51,.08);
  --sh-3:0 20px 48px rgba(18,60,51,.16);
  --ease:cubic-bezier(.2,.8,.2,1);
  --maxw:1240px;
  --s1:4px; --s2:8px; --s3:12px; --s4:16px; --s5:24px; --s6:32px; --s7:48px; --s8:64px; --s9:96px;
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --mono:"DIN Alternate","Roboto Mono","SFMono-Regular",Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--green);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25;color:var(--ink);}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:4px;}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.container-wide{max-width:1440px;}
.section{padding:96px 0;}
.section--tight{padding:64px 0;}
.section--paper{background:var(--paper);}
.section--mint{background:var(--mint);}
.section--dark{background:var(--green-deep);color:var(--on-dark);}
.section--dark h2,.section--dark h3{color:var(--on-dark);}
.section--line{border-top:1px solid var(--line);}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--green);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime);border-radius:2px;}
.section--dark .eyebrow{color:var(--lime);}

.section-head{max-width:760px;margin-bottom:56px;}
.section-head--split{display:flex;flex-wrap:wrap;gap:32px;align-items:flex-end;justify-content:space-between;max-width:none;}
.section-head h2{font-size:clamp(28px,3vw,36px);margin:14px 0 16px;}
.section-head p{color:var(--ink-2);font-size:16.5px;max-width:640px;}
.section--dark .section-head p{color:rgba(244,255,249,.72);}
.rule-top{border-top:1px solid var(--line);padding-top:28px;}
.section--dark .rule-top{border-color:rgba(198,255,74,.22);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease),background .24s var(--ease);
}
.site-header.is-stuck{box-shadow:0 6px 24px rgba(18,60,51,.10);}
.topbar{border-bottom:1px solid var(--line);}
.topbar__inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:62px;padding:10px 0;
  transition:min-height .24s var(--ease),padding .24s var(--ease);
}
.is-stuck .topbar__inner{min-height:52px;padding:6px 0;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand__mark{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(140deg,var(--green) 0%,var(--green-deep) 100%);
  color:var(--lime);display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:17px;letter-spacing:-.05em;
  box-shadow:inset 0 0 0 1px rgba(198,255,74,.35);
  transition:transform .24s var(--ease);
}
.brand:hover .brand__mark{transform:rotate(-6deg) scale(1.04);}
.brand__text{display:flex;flex-direction:column;line-height:1.16;}
.brand__cn{font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--green-deep);white-space:nowrap;}
.brand__sub{font-size:11.5px;color:var(--ink-3);letter-spacing:.16em;font-weight:600;}
.topbar__tools{display:flex;align-items:center;gap:10px;}
.tool-btn{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 14px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--paper);
  font-size:14px;font-weight:600;color:var(--ink-2);cursor:pointer;
  transition:all .2s var(--ease);
}
.tool-btn:hover{border-color:var(--green);color:var(--green);background:var(--mint);}
.tool-btn i{font-size:13px;color:var(--green);}
.tool-btn--accent{background:var(--green);border-color:var(--green);color:var(--on-dark);}
.tool-btn--accent i{color:var(--lime);}
.tool-btn--accent:hover{background:var(--lime);border-color:var(--lime);color:var(--green-deep);}
.tool-btn--accent:hover i{color:var(--green-deep);}
.lang-toggle{display:none;}
.hamburger{display:none;width:40px;height:40px;border-radius:var(--r-xs);border:1px solid var(--line);background:var(--paper);cursor:pointer;align-items:center;justify-content:center;color:var(--green);}

.chanbar__inner{
  display:flex;align-items:center;gap:6px;
  min-height:48px;overflow-x:auto;scrollbar-width:none;
  transition:min-height .24s var(--ease);
}
.chanbar__inner::-webkit-scrollbar{display:none;}
.is-stuck .chanbar__inner{min-height:44px;}
.chan-link{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  padding:13px 16px;font-size:15px;font-weight:600;color:var(--ink-2);
  white-space:nowrap;border-radius:var(--r-xs);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.chan-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:8px;height:2px;
  background:var(--lime);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.chan-link:hover{color:var(--green);}
.chan-link:hover::after{transform:scaleX(1);}
.chan-link.is-active{color:var(--green-deep);font-weight:700;}
.chan-link.is-active::after{transform:scaleX(1);}
.chan-link i{font-size:12px;color:var(--ink-3);}
.chan-link.is-active i{color:var(--orange);}

.searchpanel{
  max-height:0;overflow:hidden;background:var(--mint);
  border-bottom:1px solid transparent;
  transition:max-height .34s var(--ease),border-color .3s var(--ease);
}
.searchpanel.is-open{max-height:280px;border-bottom-color:var(--line);}
.searchpanel__inner{padding:26px 0 30px;}
.search-form{display:flex;gap:10px;max-width:640px;}
.search-form input{
  flex:1;height:48px;border-radius:var(--r-xs);border:1px solid var(--line);
  background:var(--paper);padding:0 16px;font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-form input:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(198,255,74,.55);}
.search-form button{
  height:48px;padding:0 24px;border:none;border-radius:var(--r-xs);
  background:var(--green);color:var(--on-dark);font-weight:700;cursor:pointer;
  transition:all .2s var(--ease);
}
.search-form button:hover{background:var(--lime);color:var(--green-deep);}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;align-items:center;}
.chips__label{font-size:13px;color:var(--ink-3);font-weight:600;margin-right:4px;}
.chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:var(--r-pill);background:var(--paper);border:1px solid var(--line);
  font-size:13.5px;font-weight:600;color:var(--ink-2);
  transition:all .2s var(--ease);
}
.chip:hover{background:var(--lime);border-color:var(--lime);color:var(--green-deep);}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:200;visibility:hidden;pointer-events:none;
}
.drawer__mask{
  position:absolute;inset:0;background:rgba(11,31,26,.5);
  opacity:0;transition:opacity .28s var(--ease);
}
.drawer__panel{
  position:absolute;top:0;right:0;height:100%;width:min(340px,90vw);
  background:var(--paper);padding:22px;overflow-y:auto;
  transform:translateX(100%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;gap:8px;
}
.drawer.is-open{visibility:visible;pointer-events:auto;}
.drawer.is-open .drawer__mask{opacity:1;}
.drawer.is-open .drawer__panel{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer__title{font-size:16px;font-weight:800;color:var(--green-deep);}
.drawer-close{width:36px;height:36px;border-radius:var(--r-xs);border:1px solid var(--line);background:var(--paper);cursor:pointer;color:var(--green);}
.drawer__group{margin-top:14px;}
.drawer__group h4{font-size:12px;letter-spacing:.16em;color:var(--ink-3);text-transform:uppercase;margin-bottom:10px;font-weight:700;}
.drawer__link{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 14px;border-radius:var(--r-xs);border:1px solid var(--line);
  font-weight:600;font-size:15px;color:var(--ink-2);margin-bottom:8px;
  transition:all .2s var(--ease);
}
.drawer__link:hover{border-color:var(--green);background:var(--mint);color:var(--green);}
.drawer__link.is-active{border-color:var(--green);background:var(--mint);color:var(--green-deep);}
.drawer__link i{color:var(--lime);}

/* ============ Hero ============ */
.hero{
  position:relative;background:var(--green-deep);color:var(--on-dark);
  padding:78px 0 88px;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(198,255,74,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(198,255,74,.055) 1px,transparent 1px);
  background-size:58px 58px;
  mask-image:radial-gradient(ellipse 90% 70% at 25% 20%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 70% at 25% 20%,#000 20%,transparent 78%);
}
.hero::after{
  content:"";position:absolute;width:520px;height:520px;right:-140px;top:-160px;
  background:radial-gradient(circle,rgba(198,255,74,.18) 0%,transparent 68%);
  pointer-events:none;
}
.hero__grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:60px;align-items:center;
}
.hero__badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;border-radius:var(--r-pill);
  background:rgba(198,255,74,.12);border:1px solid rgba(198,255,74,.34);
  font-size:13.5px;font-weight:700;color:var(--lime);letter-spacing:.02em;
}
.hero__badge span.dot{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(198,255,74,.18);}
.hero h1{
  color:var(--on-dark);font-size:clamp(32px,4.4vw,58px);line-height:1.16;
  margin:24px 0 20px;letter-spacing:-.03em;font-weight:800;
}
.hero h1 em{font-style:normal;color:var(--lime);display:inline-block;}
.hero__sub{
  font-size:17.5px;line-height:1.78;color:rgba(244,255,249,.78);
  max-width:560px;margin-bottom:32px;
}
.hero__points{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px;}
.hero__point{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;
  border-radius:var(--r-pill);border:1px solid rgba(244,255,249,.18);
  background:rgba(244,255,249,.05);font-size:13.5px;color:rgba(244,255,249,.86);font-weight:500;
}
.hero__point i{color:var(--lime);font-size:12px;}
.btn-group{display:flex;flex-wrap:wrap;gap:14px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:52px;padding:0 28px;border-radius:var(--r-xs);
  font-size:15.5px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:all .22s var(--ease);
}
.btn i{transition:transform .22s var(--ease);}
.btn--primary{background:var(--lime);color:var(--green-deep);}
.btn--primary:hover{background:var(--paper);color:var(--green-deep);transform:translateY(-2px);box-shadow:var(--sh-3);}
.btn--primary:hover i{transform:translateX(4px);}
.btn--ghost{background:transparent;border-color:rgba(244,255,249,.34);color:var(--on-dark);}
.btn--ghost:hover{border-color:var(--lime);color:var(--lime);background:rgba(198,255,74,.08);}
.btn--dark{background:var(--green);color:var(--on-dark);}
.btn--dark:hover{background:var(--lime);color:var(--green-deep);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn--dark:hover i{transform:translateX(4px);}
.btn--outline{background:var(--paper);border-color:var(--line);color:var(--green);}
.btn--outline:hover{border-color:var(--green);background:var(--mint);}
.hero__media{position:relative;}
.hero__media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);
  box-shadow:var(--sh-3);border:1px solid rgba(198,255,74,.22);
}
.hero__floating{
  position:absolute;left:-18px;bottom:-22px;
  background:var(--paper);color:var(--ink);border-radius:var(--r-md);
  padding:16px 20px;box-shadow:var(--sh-3);border-left:4px solid var(--lime);
  min-width:210px;
}
.hero__floating strong{display:block;font-family:var(--mono);font-size:26px;color:var(--green);letter-spacing:-.02em;}
.hero__floating span{font-size:13px;color:var(--ink-3);font-weight:600;}
.hero__strip{
  position:relative;z-index:2;margin-top:64px;padding-top:26px;
  border-top:1px solid rgba(244,255,249,.14);
  display:flex;flex-wrap:wrap;gap:12px 40px;align-items:center;
  font-size:14px;color:rgba(244,255,249,.7);font-weight:500;
}
.hero__strip i{color:var(--lime);margin-right:8px;}

/* ============ 指标看板 ============ */
.stats-grid{
  display:grid;grid-template-columns:repeat(5,minmax(0,1fr));
  gap:1px;background:var(--line);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;
}
.stat-card{
  background:var(--paper);padding:30px 24px;position:relative;
  transition:background .24s var(--ease);
}
.stat-card:hover{background:var(--mint);}
.stat-card::before{
  content:"";position:absolute;left:24px;top:30px;width:8px;height:8px;border-radius:50%;
  background:var(--lime);box-shadow:0 0 0 4px rgba(198,255,74,.22);
}
.stat-num{
  font-family:var(--mono);font-size:clamp(28px,3vw,40px);font-weight:800;
  color:var(--green);line-height:1;letter-spacing:-.02em;margin:22px 0 10px;
  display:flex;align-items:baseline;gap:4px;
}
.stat-num small{font-size:15px;font-weight:700;color:var(--ink-3);}
.stat-label{font-size:14.5px;font-weight:700;color:var(--ink);margin-bottom:6px;}
.stat-desc{font-size:13px;color:var(--ink-3);line-height:1.6;}
.trend{
  display:inline-flex;align-items:center;gap:5px;margin-top:12px;
  padding:3px 10px;border-radius:var(--r-pill);background:rgba(46,158,131,.1);
  font-size:12px;font-weight:700;color:var(--teal);font-family:var(--mono);
}
.trend--warm{background:rgba(255,122,69,.12);color:var(--orange);}

/* ============ 服务矩阵 ============ */
.mosaic{
  display:grid;gap:20px;
  grid-template-columns:repeat(6,minmax(0,1fr));
  grid-auto-rows:minmax(0,auto);
}
.m-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.m-card:hover{transform:translateY(-4px);border-color:var(--lime);box-shadow:var(--sh-3);}
.m-card__body{padding:26px 26px 28px;display:flex;flex-direction:column;gap:12px;flex:1;}
.m-card h3{font-size:20px;letter-spacing:-.01em;}
.m-card p{font-size:14.5px;color:var(--ink-2);line-height:1.7;}
.m-card__icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--mint);color:var(--green);font-size:18px;border:1px solid var(--line);
}
.m-card__link{
  margin-top:auto;display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--green);
}
.m-card__link i{transition:transform .22s var(--ease);color:var(--orange);}
.m-card:hover .m-card__link i{transform:translateX(5px);}
.m-card--lg{grid-column:span 3;grid-row:span 2;}
.m-card--lg img{aspect-ratio:16/9;width:100%;object-fit:cover;}
.m-card--lg h3{font-size:26px;}
.m-card--lg .m-card__body{padding:30px 32px 34px;}
.m-card--md{grid-column:span 3;}
.m-card--md img{aspect-ratio:16/9;width:100%;object-fit:cover;}
.m-card--sm{grid-column:span 2;}
.m-card--sm .m-card__body{padding:24px;}
.m-card__tagrow{display:flex;flex-wrap:wrap;gap:8px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:var(--r-pill);
  background:rgba(18,60,51,.07);color:var(--green);
  font-size:12px;font-weight:700;letter-spacing:.01em;
}
.badge--lime{background:var(--lime);color:#12261F;}
.badge--warm{background:rgba(255,122,69,.13);color:#C24E1F;}
.badge--dark{background:rgba(244,255,249,.1);color:var(--on-dark);}

/* ============ 对比面板 ============ */
.compare{
  display:grid;grid-template-columns:1fr 1fr;gap:24px;
}
.compare__panel{
  border-radius:var(--r-md);padding:34px 32px;border:1px solid var(--line);
  background:var(--paper);
}
.compare__panel--before{background:var(--mint);}
.compare__panel--after{
  background:var(--green);color:var(--on-dark);border-color:var(--green);
  box-shadow:var(--sh-2);
}
.compare__head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-bottom:18px;margin-bottom:22px;border-bottom:1px solid var(--line);
}
.compare__panel--after .compare__head{border-color:rgba(244,255,249,.18);}
.compare__head h3{font-size:19px;}
.compare__panel--after .compare__head h3{color:var(--on-dark);}
.compare__head span{font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--ink-3);text-transform:uppercase;}
.compare__panel--after .compare__head span{color:var(--lime);}
.bar-row{margin-bottom:22px;}
.bar-row:last-child{margin-bottom:0;}
.bar-top{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:9px;}
.bar-top b{font-size:14.5px;font-weight:700;}
.bar-top em{font-family:var(--mono);font-style:normal;font-size:15px;font-weight:800;color:var(--ink-3);}
.compare__panel--after .bar-top em{color:var(--lime);}
.bar{height:8px;border-radius:var(--r-pill);background:#E4EAE5;overflow:hidden;}
.compare__panel--after .bar{background:rgba(244,255,249,.16);}
.bar__fill{height:100%;width:0;border-radius:var(--r-pill);background:var(--ink-3);transition:width 1s var(--ease);}
.compare__panel--after .bar__fill{background:linear-gradient(90deg,var(--lime),#8FE032);}
.compare__note{
  margin-top:26px;padding-top:20px;border-top:1px dashed var(--line);
  font-size:13.5px;color:var(--ink-3);
}
.compare__panel--after .compare__note{border-color:rgba(244,255,249,.2);color:rgba(244,255,249,.72);}

/* ============ 反馈 ============ */
.voice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.voice{
  background:rgba(244,255,249,.05);border:1px solid rgba(198,255,74,.2);
  border-radius:var(--r-md);padding:28px;
}
.voice p{font-size:15px;color:rgba(244,255,249,.86);line-height:1.8;}
.voice__meta{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid rgba(244,255,249,.12);}
.voice__av{
  width:38px;height:38px;border-radius:50%;background:var(--lime);color:var(--green-deep);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;flex-shrink:0;
}
.voice__meta b{display:block;font-size:14px;color:var(--on-dark);}
.voice__meta span{font-size:12.5px;color:rgba(244,255,249,.6);}

/* ============ 最新信息（CMS） ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:var(--paper);
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:var(--lime);box-shadow:var(--sh-3);}
.news-thumb{position:relative;aspect-ratio:16/10;background:linear-gradient(135deg,#123C33,#0B1F1A);overflow:hidden;}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.05);}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-body h3{
  font-size:18px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:14.5px;color:var(--ink-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.news-foot time{font-family:var(--mono);font-size:13px;color:var(--ink-3);font-weight:600;}
.news-foot span.more{font-size:13.5px;font-weight:700;color:var(--green);display:inline-flex;align-items:center;gap:6px;}
.news-card:hover .news-foot span.more i{transform:translateX(4px);}
.news-foot span.more i{transition:transform .22s var(--ease);color:var(--orange);}
.empty-state{
  grid-column:1/-1;text-align:center;padding:60px 24px;border:1px dashed var(--line);
  border-radius:var(--r-md);background:var(--paper);color:var(--ink-3);font-size:15px;
}

/* ============ FAQ ============ */
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:24px;
  padding:26px 4px 26px 18px;background:none;border:none;text-align:left;cursor:pointer;
  position:relative;transition:color .2s var(--ease);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;border-radius:3px;
  background:var(--lime);transform:scaleY(0);transform-origin:top;
  transition:transform .24s var(--ease);
}
.faq-item.is-open .faq-q::before{transform:scaleY(1);}
.faq-q span{font-size:17px;font-weight:700;color:var(--ink);line-height:1.6;}
.faq-q:hover span{color:var(--green);}
.faq-icon{
  flex-shrink:0;width:30px;height:30px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--green);
  font-size:13px;transition:transform .28s var(--ease),background .24s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--lime);border-color:var(--lime);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s var(--ease);}
.faq-a__inner{padding:0 60px 28px 18px;font-size:15.5px;color:var(--ink-2);line-height:1.82;}

/* ============ 表单 ============ */
.contact-wrap{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:56px;align-items:start;}
.contact-aside h2{font-size:clamp(26px,3vw,34px);margin:14px 0 18px;}
.contact-aside p{color:var(--ink-2);font-size:16px;}
.contact-list{margin-top:30px;display:flex;flex-direction:column;gap:14px;}
.contact-list li{display:flex;gap:14px;align-items:flex-start;font-size:15px;color:var(--ink-2);}
.contact-list i{
  width:34px;height:34px;border-radius:10px;background:var(--mint);color:var(--green);
  display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0;
}
.form-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  padding:36px;box-shadow:var(--sh-2);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field--full{grid-column:1/-1;}
.field label{font-size:13.5px;font-weight:700;color:var(--ink);letter-spacing:.01em;}
.field label i{color:var(--orange);font-style:normal;margin-left:3px;}
.field input,.field select,.field textarea{
  width:100%;background:var(--bg);border:1px solid var(--line);border-radius:var(--r-xs);
  padding:0 14px;height:48px;font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field textarea{height:130px;padding:13px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:var(--paper);border-color:var(--green);box-shadow:0 0 0 3px rgba(198,255,74,.55);
}
.field input.is-error,.field textarea.is-error{border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,122,69,.18);}
.field__hint{font-size:12.5px;color:var(--ink-3);}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--ink-2);line-height:1.6;}
.agree input{width:18px;height:18px;margin-top:3px;flex-shrink:0;accent-color:#123C33;}
.form-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:6px;}
.form-msg{font-size:13.5px;font-weight:700;color:var(--teal);display:none;}
.form-msg.is-show{display:block;}

/* ============ 页脚 ============ */
.site-footer{background:var(--green-deep);color:var(--on-dark);padding:72px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:52px;}
.foot-brand .brand__cn{color:var(--on-dark);}
.foot-brand .brand__sub{color:rgba(244,255,249,.5);}
.foot-brand p{margin-top:20px;font-size:14.5px;color:rgba(244,255,249,.66);line-height:1.8;max-width:320px;}
.foot-social{display:flex;gap:10px;margin-top:22px;}
.foot-social a{
  width:38px;height:38px;border-radius:10px;border:1px solid rgba(244,255,249,.18);
  display:flex;align-items:center;justify-content:center;color:rgba(244,255,249,.8);font-size:14px;
  transition:all .2s var(--ease);
}
.foot-social a:hover{background:var(--lime);border-color:var(--lime);color:var(--green-deep);transform:translateY(-3px);}
.foot-col h4{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--lime);margin-bottom:18px;font-weight:700;}
.foot-col li{margin-bottom:12px;}
.foot-col a{font-size:14.5px;color:rgba(244,255,249,.72);}
.foot-col a:hover{color:var(--lime);}
.foot-col p{font-size:14.5px;color:rgba(244,255,249,.72);line-height:1.8;}
.foot-bottom{
  border-top:1px solid rgba(244,255,249,.12);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(244,255,249,.5);
}
.foot-bottom a{color:rgba(244,255,249,.66);}
.foot-bottom a:hover{color:var(--lime);}

/* ============ 滚动动效 ============ */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}

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

/* ============ 响应式 ============ */
@media screen and (max-width:1280px){
  .container{padding:0 20px;}
  .hero__floating{left:0;}
}
@media screen and (max-width:1024px){
  .section{padding:72px 0;}
  .section--tight{padding:52px 0;}
  .hero{padding:60px 0 70px;}
  .hero__grid{grid-template-columns:1fr;gap:44px;}
  .hero__media{order:2;}
  .stats-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
  .m-card--lg{grid-column:span 6;grid-row:auto;}
  .m-card--md{grid-column:span 3;}
  .m-card--sm{grid-column:span 3;}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .voice-grid{grid-template-columns:1fr;gap:16px;}
  .compare{grid-template-columns:1fr;}
  .contact-wrap{grid-template-columns:1fr;gap:36px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .topbar__tools .tool-btn span{display:none;}
  .topbar__tools .tool-btn{padding:0 12px;}
  .hamburger{display:inline-flex;}
  .chanbar{display:none;}
}
@media screen and (max-width:768px){
  body{font-size:16px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:36px;}
  .section-head--split{gap:18px;}
  .hero{padding:48px 0 58px;}
  .hero h1{font-size:clamp(28px,7vw,36px);}
  .hero__sub{font-size:16px;}
  .hero__floating{position:static;margin-top:16px;min-width:0;}
  .hero__strip{margin-top:44px;gap:10px 24px;font-size:13px;}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-card{padding:24px 18px;}
  .mosaic{grid-template-columns:1fr;gap:16px;}
  .m-card--lg,.m-card--md,.m-card--sm{grid-column:span 1;}
  .news-grid{grid-template-columns:1fr;}
  .compare__panel{padding:26px 22px;}
  .form-card{padding:24px 20px;}
  .form-grid{grid-template-columns:1fr;}
  .faq-q{padding:22px 4px 22px 16px;}
  .faq-a__inner{padding:0 20px 24px 16px;}
  .search-form{flex-direction:column;}
  .search-form button{width:100%;}
  .foot-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:520px){
  .container{padding:0 16px;}
  .brand__cn{font-size:16px;}
  .brand__sub{display:none;}
  .stats-grid{grid-template-columns:1fr;}
  .btn{width:100%;padding:0 20px;}
  .btn-group{flex-direction:column;}
  .hero__points{gap:8px;}
}

/* roulang page: article */
:root{
  --pine:#123C33;
  --pine-deep:#0B1F1A;
  --lime:#C6FF4A;
  --orange:#FF7A45;
  --bg:#F6F7F4;
  --paper:#FFFFFF;
  --text:#0F1A18;
  --text-2:#4A5A55;
  --text-3:#7C8B86;
  --inv:#F4FFF9;
  --border:#DDE5DF;
  --info:#2E9E83;
  --r-xs:8px;
  --r-md:14px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,60,51,.06);
  --sh-2:0 12px 32px rgba(18,60,51,.08);
  --sh-3:0 18px 44px rgba(18,60,51,.16);
  --t:220ms cubic-bezier(.2,.8,.2,1);
  --maxw:1260px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--pine);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--info);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.25;}
p{margin:0 0 1.2em;}
ul,ol{margin:0 0 1.2em;padding-left:1.3em;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.row{max-width:none;margin-left:0;margin-right:0;}
.row .columns{padding-left:0;padding-right:0;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--border);
  transition:box-shadow var(--t);
}
.site-header.is-stuck{box-shadow:var(--sh-1);}
.brandrow{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding-top:8px;padding-bottom:8px;
}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand__mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:var(--pine);color:var(--lime);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:19px;letter-spacing:0;
  box-shadow:var(--sh-1);
}
.brand__text{display:flex;flex-direction:column;line-height:1.2;}
.brand__cn{font-weight:800;font-size:17px;letter-spacing:.01em;}
.brand__sub{font-size:11.5px;color:var(--text-3);letter-spacing:.08em;}
.brandrow__tools{display:flex;align-items:center;gap:8px;}
.tool-btn{
  display:inline-flex;align-items:center;gap:6px;
  border:1px solid var(--border);background:#EEF3EF;color:var(--pine);
  padding:8px 14px;border-radius:var(--r-pill);
  font-size:13.5px;font-weight:600;cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t);
}
.tool-btn:hover{background:var(--lime);color:var(--pine);border-color:var(--lime);transform:translateY(-1px);}
.tool-btn--cta{background:var(--pine);color:#fff;border-color:var(--pine);}
.tool-btn--cta:hover{background:var(--orange);border-color:var(--orange);color:#fff;}
.nav-burger{display:none;background:var(--pine);color:#fff;border:0;width:40px;height:40px;border-radius:10px;cursor:pointer;}
.chanbar{border-top:1px solid var(--border);}
.chanbar__inner{display:flex;align-items:center;gap:6px;min-height:48px;overflow-x:auto;scrollbar-width:none;}
.chanbar__inner::-webkit-scrollbar{display:none;}
.chan-link{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  padding:10px 14px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:600;color:var(--text-2);white-space:nowrap;
  transition:color var(--t),background var(--t);
}
.chan-link i{font-size:12px;opacity:.75;}
.chan-link:hover{color:var(--pine);background:#EEF3EF;}
.chan-link.is-active{color:var(--pine);}
.chan-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:3px;background:var(--lime);
}
.search-panel{
  max-height:0;overflow:hidden;background:#F2F6F2;border-top:1px solid transparent;
  transition:max-height var(--t),border-color var(--t);
}
.search-panel.is-open{max-height:320px;border-top-color:var(--border);}
.search-panel__inner{padding:20px 0 24px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,320px);gap:24px;align-items:start;}
.search-form{display:flex;gap:10px;}
.search-form input{
  flex:1;height:48px;border:1px solid var(--border);border-radius:var(--r-xs);
  background:#fff;padding:0 16px;font-size:15px;
}
.search-form input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 2px rgba(198,255,74,.6);}
.search-form button{
  height:48px;padding:0 22px;border:0;border-radius:var(--r-xs);
  background:var(--pine);color:#fff;font-weight:700;cursor:pointer;transition:background var(--t),transform var(--t);
}
.search-form button:hover{background:var(--lime);color:var(--pine);transform:translateY(-1px);}
.hot-words{display:flex;flex-wrap:wrap;gap:8px;align-content:flex-start;}
.hot-words span{width:100%;font-size:12.5px;color:var(--text-3);letter-spacing:.06em;}
.chip{
  display:inline-flex;align-items:center;padding:6px 13px;border-radius:var(--r-pill);
  background:#EEF3EF;color:var(--pine);font-size:13px;font-weight:600;
  transition:background var(--t),color var(--t),transform var(--t);
}
.chip:hover{background:var(--lime);color:var(--pine);transform:translateY(-1px);}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(86vw,340px);z-index:90;
  background:var(--paper);box-shadow:-4px 0 32px rgba(18,60,51,.18);
  transform:translateX(102%);transition:transform var(--t);
  display:flex;flex-direction:column;padding:18px 20px 28px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer__close{width:38px;height:38px;border-radius:10px;border:1px solid var(--border);background:#fff;cursor:pointer;color:var(--pine);}
.drawer__group{margin-bottom:20px;}
.drawer__group h5{margin:0 0 10px;font-size:12px;letter-spacing:.14em;color:var(--text-3);font-weight:700;}
.drawer__link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 14px;border-radius:var(--r-md);border:1px solid var(--border);
  margin-bottom:8px;font-weight:600;font-size:15px;color:var(--text);
}
.drawer__link:hover{border-color:var(--lime);background:#F4FBEA;color:var(--pine);}
.scrim{position:fixed;inset:0;background:rgba(11,31,26,.5);opacity:0;pointer-events:none;transition:opacity var(--t);z-index:80;}
.scrim.is-open{opacity:1;pointer-events:auto;}

/* ---------- article hero ---------- */
.art-hero{
  position:relative;color:var(--inv);
  background:linear-gradient(115deg,rgba(11,31,26,.94) 0%,rgba(18,60,51,.9) 55%,rgba(18,60,51,.78) 100%),
             url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding:44px 0 56px;
  border-bottom:4px solid var(--lime);
}
.art-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(198,255,74,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(198,255,74,.07) 1px,transparent 1px);
  background-size:44px 44px;
}
.art-hero .container{position:relative;z-index:2;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(244,255,249,.7);margin-bottom:18px;}
.crumbs a{color:rgba(244,255,249,.88);}
.crumbs a:hover{color:var(--lime);}
.crumbs i{font-size:10px;opacity:.6;}
.crumbs .now{color:var(--lime);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.art-badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--lime);color:#0F1A18;border-radius:var(--r-pill);
  padding:5px 14px;font-size:12.5px;font-weight:800;letter-spacing:.03em;margin-bottom:16px;
}
.art-title{
  font-size:clamp(30px,4vw,52px);font-weight:800;letter-spacing:-.02em;line-height:1.18;
  max-width:20ch;padding-left:20px;border-left:5px solid var(--lime);color:#fff;
}
.art-meta{
  display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:22px;padding-top:18px;
  border-top:1px solid rgba(198,255,74,.28);font-size:13.5px;color:rgba(244,255,249,.82);
}
.art-meta span{display:inline-flex;align-items:center;gap:7px;}
.art-meta i{color:var(--lime);font-size:12px;}
.art-meta .num{font-variant-numeric:tabular-nums;font-family:"SFMono-Regular",Consolas,monospace;}

/* ---------- layout ---------- */
.art-main{padding:56px 0 72px;}
.art-grid{display:grid;grid-template-columns:minmax(0,1fr) 268px;gap:48px;align-items:start;}
.art-card{
  background:var(--paper);border:1px solid var(--border);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:40px 44px;
}
.article-body{max-width:820px;font-size:17.5px;line-height:1.85;color:var(--text);}
.article-body>*:first-child{margin-top:0;}
.article-body h2{
  font-size:clamp(22px,2.4vw,30px);margin:2em 0 .8em;padding-left:16px;
  border-left:4px solid var(--lime);line-height:1.35;
}
.article-body h3{font-size:20px;margin:1.7em 0 .6em;color:var(--pine);}
.article-body h4{font-size:17.5px;margin:1.4em 0 .5em;}
.article-body p{margin:0 0 1.2em;}
.article-body a{color:var(--pine);border-bottom:2px solid var(--lime);}
.article-body a:hover{color:var(--pine);background:#F1FCD8;}
.article-body blockquote{
  margin:1.6em 0;padding:16px 22px;background:#F2F7F3;border-left:4px solid var(--lime);
  border-radius:0 var(--r-md) var(--r-md) 0;color:var(--text-2);font-size:16.5px;
}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.2em;}
.article-body li{margin-bottom:.5em;padding-left:.2em;}
.article-body img{border-radius:12px;margin:1.4em auto;box-shadow:var(--sh-1);}
.article-body figure{margin:1.6em 0;}
.article-body figcaption,.article-body .caption{text-align:center;font-size:13px;color:var(--text-3);margin-top:.6em;}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--border);padding:11px 14px;text-align:left;}
.article-body th{background:#EEF3EF;color:var(--pine);font-weight:700;}
.article-body code{background:#EEF3EF;padding:2px 6px;border-radius:6px;font-size:.92em;}
.article-body hr{border:0;border-top:1px solid var(--border);margin:2.2em 0;}

/* ---------- TOC ---------- */
.toc{
  position:sticky;top:132px;background:var(--paper);border:1px solid var(--border);
  border-radius:var(--r-md);padding:20px 20px 18px;box-shadow:var(--sh-1);
}
.toc h4{font-size:12.5px;letter-spacing:.14em;color:var(--text-3);margin-bottom:12px;font-weight:700;}
.toc ol{list-style:none;margin:0;padding:0;counter-reset:toc;}
.toc li{margin-bottom:2px;counter-increment:toc;}
.toc a{
  display:block;padding:7px 10px 7px 30px;position:relative;border-radius:8px;
  font-size:14px;color:var(--text-2);line-height:1.45;
}
.toc a::before{
  content:counter(toc,decimal-leading-zero);position:absolute;left:8px;top:7px;
  font-size:11.5px;color:var(--text-3);font-family:"SFMono-Regular",Consolas,monospace;
}
.toc a:hover,.toc a.is-current{background:#EEF3EF;color:var(--pine);}
.toc a.is-current::before{color:var(--info);}
.toc-note{margin-top:14px;padding-top:14px;border-top:1px solid var(--border);font-size:12.5px;color:var(--text-3);line-height:1.6;}

/* ---------- sections ---------- */
.section{padding:64px 0;}
.section--tight{padding:48px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;border-bottom:1px solid var(--border);padding-bottom:16px;}
.sec-head h2{font-size:clamp(22px,2.6vw,30px);padding-left:16px;border-left:4px solid var(--lime);}
.sec-head p{margin:0;color:var(--text-2);font-size:14.5px;max-width:46ch;}

.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  background:var(--paper);border:1px solid var(--border);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  display:flex;flex-direction:column;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--lime);}
.rel-card__img{aspect-ratio:16/10;overflow:hidden;background:#EEF3EF;}
.rel-card__img img{width:100%;height:100%;object-fit:cover;transition:transform var(--t);}
.rel-card:hover .rel-card__img img{transform:scale(1.04);}
.rel-card__body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-card__tag{align-self:flex-start;background:#E8F2EA;color:var(--pine);border-radius:var(--r-pill);padding:4px 12px;font-size:12px;font-weight:700;}
.rel-card h3{font-size:17.5px;line-height:1.45;}
.rel-card p{margin:0;color:var(--text-2);font-size:14.5px;line-height:1.7;}
.rel-card__more{margin-top:auto;color:var(--pine);font-weight:700;font-size:14px;display:inline-flex;align-items:center;gap:8px;}
.rel-card__more i{transition:transform var(--t);}
.rel-card:hover .rel-card__more i{transform:translateX(5px);}

.chan-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.chan-box{
  border:1px solid var(--border);border-radius:var(--r-md);background:var(--paper);
  padding:24px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.chan-box:hover{transform:translateY(-4px);border-color:var(--lime);box-shadow:var(--sh-2);}
.chan-box span.no{font-family:"SFMono-Regular",Consolas,monospace;font-size:13px;color:var(--info);letter-spacing:.1em;}
.chan-box h3{margin:8px 0 8px;font-size:19px;}
.chan-box p{margin:0 0 14px;color:var(--text-2);font-size:14.5px;}
.chan-box a{font-weight:700;font-size:14px;display:inline-flex;align-items:center;gap:8px;}

/* ---------- FAQ ---------- */
.faq-wrap{border-top:1px solid var(--border);}
.faq-item{border-bottom:1px solid var(--border);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 44px 20px 18px;position:relative;
  font-size:17px;font-weight:700;color:var(--text);transition:color var(--t),background var(--t);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";position:absolute;right:14px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--pine);transition:transform var(--t);
}
.faq-item[open] summary::after{content:"–";transform:translateY(-50%) rotate(180deg);color:var(--info);}
.faq-item summary:hover{background:#F2F7F3;color:var(--pine);}
.faq-item[open] summary{box-shadow:inset 4px 0 0 var(--lime);}
.faq-item .faq-a{padding:0 44px 22px 18px;color:var(--text-2);font-size:15.5px;line-height:1.8;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;background:var(--pine-deep);color:var(--inv);border-radius:var(--r-lg);
  padding:44px 48px;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:32px;align-items:center;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,74,.28),transparent 68%);
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);color:#fff;position:relative;}
.cta-band p{margin:12px 0 0;color:rgba(244,255,249,.78);font-size:15px;position:relative;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;}
.btn{
  display:inline-flex;align-items:center;gap:9px;padding:13px 24px;border-radius:var(--r-xs);
  font-weight:700;font-size:15px;border:1px solid transparent;cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t);
}
.btn i{transition:transform var(--t);}
.btn--primary{background:var(--lime);color:#0F1A18;}
.btn--primary:hover{background:#fff;color:var(--pine);transform:translateY(-2px);}
.btn--primary:hover i{transform:translateX(4px);}
.btn--ghost{background:transparent;border-color:rgba(244,255,249,.4);color:#fff;}
.btn--ghost:hover{background:rgba(198,255,74,.14);border-color:var(--lime);color:var(--lime);transform:translateY(-2px);}
.btn--pine{background:var(--pine);color:#fff;}
.btn--pine:hover{background:var(--orange);color:#fff;transform:translateY(-2px);}

/* ---------- empty ---------- */
.empty-box{
  background:var(--paper);border:1px dashed var(--border);border-radius:var(--r-md);
  padding:56px 32px;text-align:center;box-shadow:var(--sh-1);
}
.empty-box i{font-size:34px;color:var(--info);margin-bottom:16px;display:block;}
.empty-box h2{font-size:24px;margin-bottom:10px;}
.empty-box p{color:var(--text-2);font-size:15px;max-width:52ch;margin:0 auto 22px;}

/* ---------- footer ---------- */
.site-footer{background:var(--pine);color:var(--inv);padding:60px 0 26px;margin-top:24px;}
.foot-grid{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));gap:40px;}
.site-footer .brand__mark{background:var(--lime);color:var(--pine);}
.site-footer .brand__cn{color:#fff;}
.site-footer .brand__sub{color:rgba(244,255,249,.6);}
.foot-brand p{margin:18px 0 18px;color:rgba(244,255,249,.75);font-size:14.5px;max-width:38ch;line-height:1.8;}
.foot-social{display:flex;gap:10px;}
.foot-social a{
  width:38px;height:38px;border-radius:10px;border:1px solid rgba(244,255,249,.24);
  display:flex;align-items:center;justify-content:center;color:var(--inv);
  transition:background var(--t),color var(--t),border-color var(--t);
}
.foot-social a:hover{background:var(--lime);color:var(--pine);border-color:var(--lime);}
.foot-col h4{font-size:13px;letter-spacing:.14em;color:var(--lime);margin-bottom:16px;font-weight:700;}
.foot-col ul{list-style:none;margin:0;padding:0;}
.foot-col li{margin-bottom:10px;}
.foot-col a{color:rgba(244,255,249,.82);font-size:14.5px;}
.foot-col a:hover{color:var(--lime);}
.foot-col p{color:rgba(244,255,249,.72);font-size:14px;line-height:1.75;margin:0 0 10px;}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(244,255,249,.16);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(244,255,249,.6);
}
.foot-bottom a{color:rgba(244,255,249,.82);}
.foot-bottom a:hover{color:var(--lime);}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity 520ms cubic-bezier(.2,.8,.2,1),transform 520ms cubic-bezier(.2,.8,.2,1);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .art-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .toc{position:static;top:auto;}
  .art-card{padding:32px 28px;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .chan-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .cta-band{grid-template-columns:minmax(0,1fr);}
  .search-panel__inner{grid-template-columns:minmax(0,1fr);}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .nav-burger{display:inline-flex;align-items:center;justify-content:center;}
  .tool-btn:not(.tool-btn--cta){display:none;}
  .brand__sub{display:none;}
  .art-hero{padding:32px 0 40px;}
  .art-title{padding-left:14px;border-left-width:4px;max-width:none;}
  .art-card{padding:26px 20px;border-radius:var(--r-md);}
  .article-body{font-size:16.5px;line-height:1.85;}
  .art-main{padding:36px 0 52px;}
  .section{padding:48px 0;}
  .rel-grid{grid-template-columns:minmax(0,1fr);}
  .chan-strip{grid-template-columns:minmax(0,1fr);}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .cta-band{padding:32px 24px;border-radius:var(--r-md);}
  .foot-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .foot-bottom{flex-direction:column;}
}
@media (max-width:480px){
  .brand__cn{font-size:15.5px;}
  .chan-link{padding:9px 11px;font-size:13.5px;}
  .art-meta{gap:8px 16px;font-size:12.5px;}
  .article-body h2{font-size:21px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:1ms !important;animation-duration:1ms !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --ink:#123C33;
  --ink-soft:#1B5044;
  --lime:#C6FF4A;
  --orange:#FF7A45;
  --bg:#F6F7F4;
  --paper:#FFFFFF;
  --dark:#0B1F1A;
  --t1:#0F1A18;
  --t2:#4A5A55;
  --t3:#7C8B86;
  --line:#DDE5DF;
  --teal:#2E9E83;
  --r-lg:18px;
  --r-md:16px;
  --r-sm:8px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,60,51,.06);
  --sh-2:0 12px 32px rgba(18,60,51,.08);
  --sh-3:0 20px 44px rgba(18,60,51,.14);
  --ease:cubic-bezier(.2,.8,.2,1);
  --s1:4px;--s2:8px;--s3:12px;--s4:16px;--s5:24px;--s6:32px;--s7:48px;--s8:64px;--s9:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.75;
  color:var(--t1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.015em;line-height:1.25;color:var(--t1)}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
strong{font-weight:700}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";letter-spacing:.02em}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.95);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.topbar{height:64px;transition:height .22s var(--ease)}
.site-header.is-scrolled .topbar{height:54px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:100%}
.brand{display:inline-flex;align-items:center;gap:11px}
.brand__mark{
  width:38px;height:38px;border-radius:11px;background:var(--ink);color:var(--lime);
  display:grid;place-items:center;font-weight:800;font-size:18px;flex:0 0 auto;
  transition:transform .22s var(--ease)
}
.brand:hover .brand__mark{transform:translateY(-2px)}
.brand__cn{display:block;font-weight:800;font-size:17px;line-height:1.2;color:var(--ink)}
.brand__sub{display:block;font-size:12px;line-height:1.4;color:var(--t3);letter-spacing:.05em;transition:opacity .2s var(--ease)}
.site-header.is-scrolled .brand__sub{opacity:0;height:0;overflow:hidden}
.topbar__tools{display:flex;align-items:center;gap:8px}
.tool-btn{
  display:inline-flex;align-items:center;gap:7px;
  height:38px;padding:0 14px;border-radius:var(--r-pill);
  font-size:14px;font-weight:500;color:var(--t2);
  background:#EEF3EF;transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.tool-btn:hover{background:var(--lime);color:var(--dark);transform:translateY(-1px)}
.tool-btn--cta{background:var(--ink);color:#F4FFF9}
.tool-btn--cta:hover{background:var(--orange);color:#fff}
.tool-btn span{white-space:nowrap}
.site-header.is-scrolled .tool-btn span{display:none}
.site-header.is-scrolled .tool-btn{width:38px;padding:0;justify-content:center}
.menu-btn{
  display:none;width:40px;height:40px;border-radius:var(--r-sm);
  background:#EEF3EF;color:var(--ink);place-items:center;font-size:16px;
}
.menu-btn:hover{background:var(--lime)}
.search-panel{
  position:absolute;left:0;right:0;top:100%;
  background:var(--paper);border-bottom:1px solid var(--line);
  box-shadow:var(--sh-2);padding:22px 0 24px;
}
.search-panel[hidden]{display:none}
.search-form{display:flex;gap:10px;max-width:640px}
.search-form input{
  flex:1;height:48px;padding:0 16px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--bg);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-form input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 3px rgba(198,255,74,.35);background:#fff}
.search-form button{
  height:48px;padding:0 22px;border-radius:var(--r-sm);background:var(--ink);color:#F4FFF9;font-weight:700;
  transition:background .2s var(--ease),color .2s var(--ease)
}
.search-form button:hover{background:var(--lime);color:var(--dark)}
.hot-line{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px}
.hot-line__label{font-size:13px;color:var(--t3);letter-spacing:.05em}
.chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:#EEF3EF;color:var(--ink);font-size:13.5px;font-weight:500;
  border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.chip:hover{background:var(--lime);color:var(--dark);transform:translateY(-1px)}
.chip.is-active{background:var(--ink);color:var(--lime);border-color:var(--ink)}

/* 频道行 */
.chanbar{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.chanbar__inner{display:flex;align-items:stretch;gap:4px;height:48px;overflow-x:auto;scrollbar-width:none}
.chanbar__inner::-webkit-scrollbar{display:none}
.chan-link{
  position:relative;display:inline-flex;align-items:center;gap:8px;
  padding:0 16px;font-size:15px;font-weight:500;color:var(--t2);white-space:nowrap;
  transition:color .2s var(--ease);
}
.chan-link i{font-size:13px;color:var(--t3);transition:color .2s var(--ease)}
.chan-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:0;height:3px;border-radius:3px 3px 0 0;
  background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease)
}
.chan-link:hover{color:var(--ink)}
.chan-link:hover i{color:var(--teal)}
.chan-link.is-active{color:var(--ink);font-weight:700}
.chan-link.is-active i{color:var(--ink)}
.chan-link.is-active::after{transform:scaleX(1)}

/* 抽屉 */
.drawer{
  position:fixed;inset:64px 0 0 0;background:rgba(11,31,26,.4);
  opacity:0;visibility:hidden;transition:opacity .22s var(--ease),visibility .22s;z-index:90;
}
.drawer.is-open{opacity:1;visibility:visible}
.drawer__panel{
  background:var(--paper);padding:24px;max-height:100%;overflow-y:auto;
  transform:translateY(-12px);transition:transform .24s var(--ease)
}
.drawer.is-open .drawer__panel{transform:translateY(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer__title{font-size:13px;letter-spacing:.14em;color:var(--t3);text-transform:uppercase}
.drawer__close{width:38px;height:38px;border-radius:var(--r-sm);background:#EEF3EF;display:grid;place-items:center}
.drawer__nav{display:grid;gap:6px;margin-bottom:24px}
.drawer__nav a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:15px 16px;border:1px solid var(--line);border-radius:var(--r-md);font-weight:500;
  transition:border-color .2s var(--ease),background .2s var(--ease)
}
.drawer__nav a:hover{border-color:var(--lime);background:#FAFDF6}
.drawer__nav a.is-active{border-color:var(--ink);background:#F2F8F1;font-weight:700}
.drawer__nav a i{color:var(--t3);font-size:13px}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;color:#F4FFF9;
  background:var(--dark) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(102deg,rgba(11,31,26,.95) 0%,rgba(18,60,51,.86) 52%,rgba(18,60,51,.62) 100%);
}
.page-hero__grid{
  position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(198,255,74,.09) 1px,transparent 1px),linear-gradient(90deg,rgba(198,255,74,.09) 1px,transparent 1px);
  background-size:46px 46px;
  mask-image:radial-gradient(circle at 78% 30%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 78% 30%,#000 0%,transparent 72%);
}
.page-hero__inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:56px;align-items:center;
  padding-top:76px;padding-bottom:76px;
}
.kicker{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--ink);
}
.kicker::before{content:"";width:24px;height:3px;border-radius:2px;background:var(--lime)}
.kicker--lime{color:var(--lime)}
.kicker--lime::before{background:var(--lime)}
.page-hero .kicker{color:var(--lime)}
.page-hero h1{
  color:#F4FFF9;font-size:clamp(32px,4.4vw,56px);line-height:1.12;letter-spacing:-.03em;
  margin:20px 0 20px;max-width:16em;
}
.page-hero h1 em{font-style:normal;color:var(--lime)}
.page-hero .lead{
  font-size:18px;line-height:1.8;color:rgba(244,255,249,.82);max-width:38em;margin:0 0 32px;
}
.btn-group{display:flex;flex-wrap:wrap;gap:14px}
.btn{
  display:inline-flex;align-items:center;gap:10px;height:50px;padding:0 26px;border-radius:var(--r-sm);
  font-size:16px;font-weight:700;border:1px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn i{transition:transform .22s var(--ease)}
.btn:hover i{transform:translateX(4px)}
.btn--primary{background:var(--lime);color:var(--dark);box-shadow:0 10px 26px rgba(198,255,74,.24)}
.btn--primary:hover{background:#fff;color:var(--ink);transform:translateY(-2px)}
.btn--ghost{background:transparent;color:#F4FFF9;border-color:rgba(244,255,249,.34)}
.btn--ghost:hover{background:rgba(198,255,74,.14);border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
.btn--ink{background:var(--ink);color:#F4FFF9}
.btn--ink:hover{background:var(--orange);color:#fff;transform:translateY(-2px)}
.btn--line{background:#fff;color:var(--ink);border-color:var(--line)}
.btn--line:hover{border-color:var(--lime);background:#F7FCF1}

.page-hero__card{
  background:rgba(11,31,26,.62);border:1px solid rgba(198,255,74,.22);border-radius:var(--r-lg);
  padding:28px;backdrop-filter:blur(2px);
}
.page-hero__card h2{color:#F4FFF9;font-size:19px;margin-bottom:18px}
.mini-stats{display:grid;gap:14px}
.mini-stats li{
  display:flex;align-items:baseline;gap:14px;padding-bottom:14px;border-bottom:1px dashed rgba(244,255,249,.18)
}
.mini-stats li:last-child{padding-bottom:0;border-bottom:0}
.mini-stats strong{
  font-size:22px;font-weight:800;color:var(--lime);flex:0 0 auto;min-width:4.6em;
  font-variant-numeric:tabular-nums;
}
.mini-stats span{font-size:14.5px;color:rgba(244,255,249,.78);line-height:1.6}
.mini-note{margin-top:20px;font-size:13px;color:rgba(244,255,249,.62);line-height:1.7}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--paper{background:var(--paper)}
.section--dark{background:var(--dark);color:#F4FFF9}
.section--dark h2,.section--dark h3{color:#F4FFF9}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:9px;
  font-size:13.5px;color:var(--t3);padding:22px 0 0;
}
.crumbs a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:4px}
.crumbs i{font-size:10px;color:var(--t3)}
.crumbs span{color:var(--t2)}

.headline-split{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:end;
  padding-bottom:28px;border-bottom:1px solid var(--line);margin-bottom:40px;
}
.section--dark .headline-split{border-bottom-color:rgba(244,255,249,.16)}
.headline-split h2{font-size:clamp(26px,3vw,38px);margin-top:14px}
.headline-split p{color:var(--t2);font-size:16px;line-height:1.85;margin:0}
.section--dark .headline-split p{color:rgba(244,255,249,.74)}

/* ============ 编辑推荐流 ============ */
.feed-toolbar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-bottom:28px;
}
.filter-chips{display:flex;flex-wrap:wrap;gap:10px}
.feed-count{font-size:14px;color:var(--t3)}
.feed-count strong{color:var(--ink);font-size:18px;font-weight:800}

.feed-list{display:grid;gap:24px}
.feed-item{
  display:grid;grid-template-columns:320px minmax(0,1fr);gap:0;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.feed-item:hover{transform:translateY(-4px);border-color:var(--lime);box-shadow:var(--sh-3)}
.feed-item[hidden]{display:none}
.feed-thumb{position:relative;background:#EEF3EF;min-height:220px;overflow:hidden}
.feed-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.feed-item:hover .feed-thumb img{transform:scale(1.04)}
.feed-thumb__idx{
  position:absolute;left:14px;top:14px;z-index:2;
  min-width:38px;height:26px;padding:0 9px;border-radius:var(--r-pill);
  background:rgba(11,31,26,.82);color:var(--lime);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;font-variant-numeric:tabular-nums;
}
.feed-body{padding:28px 30px;display:flex;flex-direction:column;gap:14px}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:#E7F6EC;color:var(--ink);font-size:12.5px;font-weight:700;letter-spacing:.02em;
}
.badge--lime{background:var(--lime);color:var(--dark)}
.badge--hot{background:rgba(255,122,69,.14);color:#B8461E}
.badge--hot::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--orange);margin-right:7px}
.feed-body h3{font-size:22px;line-height:1.4}
.feed-body h3 a:hover{color:var(--ink-soft);text-decoration:underline;text-underline-offset:5px;text-decoration-color:var(--lime);text-decoration-thickness:3px}
.feed-body p{color:var(--t2);font-size:15.5px;line-height:1.8;margin:0}
.feed-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;
  padding-top:16px;border-top:1px dashed var(--line);
  font-size:13.5px;color:var(--t3);
}
.feed-meta span{display:inline-flex;align-items:center;gap:7px}
.feed-meta i{font-size:12px;color:var(--teal)}
.arrow-link{
  margin-left:auto;display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;font-weight:700;color:var(--ink);
}
.arrow-link i{transition:transform .22s var(--ease)}
.arrow-link:hover{color:var(--ink-soft)}
.arrow-link:hover i{transform:translateX(5px)}
.empty-note{
  padding:56px 24px;text-align:center;color:var(--t3);font-size:15px;
  border:1px dashed var(--line);border-radius:var(--r-md);background:var(--paper);
}

/* ============ 频道价值 ============ */
.value-grid{display:grid;grid-template-columns:minmax(0,0.9fr) minmax(0,1.35fr);gap:56px;align-items:start}
.value-intro h2{font-size:clamp(26px,3vw,38px);margin:16px 0 20px}
.value-intro p{color:rgba(244,255,249,.74);font-size:16px;line-height:1.85}
.value-intro .btn{margin-top:12px}
.value-list{display:grid;gap:0}
.value-item{
  display:grid;grid-template-columns:64px minmax(0,1fr);gap:24px;
  padding:26px 0;border-top:1px solid rgba(244,255,249,.14);
  transition:background .22s var(--ease);
}
.value-item:last-child{border-bottom:1px solid rgba(244,255,249,.14)}
.value-item:hover{background:rgba(198,255,74,.05)}
.value-num{
  font-size:26px;font-weight:800;color:var(--lime);line-height:1.2;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.value-item h3{font-size:20px;margin-bottom:9px}
.value-item p{color:rgba(244,255,249,.7);font-size:15px;line-height:1.8;margin:0}

/* ============ 适用场景 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:22px}
.scene-card{
  position:relative;padding:30px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--paper);
  box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
  display:flex;flex-direction:column;gap:12px;
}
.scene-card:hover{transform:translateY(-4px);border-color:var(--lime);box-shadow:var(--sh-2)}
.scene-card--wide{grid-column:span 4}
.scene-card--narrow{grid-column:span 2}
.scene-card__icon{
  width:44px;height:44px;border-radius:12px;background:#EEF3EF;color:var(--ink);
  display:grid;place-items:center;font-size:17px;
}
.scene-card--wide .scene-card__icon{background:var(--lime);color:var(--dark)}
.scene-card h3{font-size:19px}
.scene-card p{color:var(--t2);font-size:15px;line-height:1.8;margin:0}
.scene-card__tag{
  margin-top:auto;font-size:13px;color:var(--teal);font-weight:700;letter-spacing:.02em;
}

/* ============ 浏览流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;counter-reset:step}
.step{
  position:relative;padding:28px 24px 26px;background:var(--paper);
  border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.step__no{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;background:var(--ink);color:var(--lime);
  font-weight:800;font-size:15px;margin-bottom:16px;font-variant-numeric:tabular-nums;
}
.step h3{font-size:18px;margin-bottom:8px}
.step p{color:var(--t2);font-size:14.5px;line-height:1.8;margin:0}
.step::after{
  content:"";position:absolute;right:-22px;top:44px;width:22px;height:2px;background:var(--line);
}
.step:last-child::after{display:none}

/* ============ 热词趋势 ============ */
.trend-box{
  background:linear-gradient(180deg,#FFFFFF 0%,#F9FCF6 100%);
  border:1px solid var(--line);border-radius:var(--r-lg);padding:36px;box-shadow:var(--sh-1);
}
.trend-wrap{display:flex;flex-wrap:wrap;gap:12px}
.trend-chip{
  display:inline-flex;align-items:center;gap:10px;height:42px;padding:0 20px;border-radius:var(--r-pill);
  background:#EEF3EF;color:var(--ink);font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.trend-chip em{font-style:normal;font-size:12.5px;color:var(--t3);font-variant-numeric:tabular-nums;transition:color .2s var(--ease)}
.trend-chip:hover{background:var(--lime);color:var(--dark);transform:translateY(-2px);border-color:var(--dark)}
.trend-chip:hover em{color:var(--dark)}
.trend-chip--hot{background:rgba(255,122,69,.1);color:#B8461E}
.trend-chip--hot em{color:#B8461E}
.trend-note{margin-top:22px;padding-top:20px;border-top:1px dashed var(--line);font-size:14px;color:var(--t3);line-height:1.8}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion{border-top:1px solid var(--line)}
.accordion-item{border-bottom:1px solid var(--line);background:transparent}
.accordion-title{
  position:relative;display:flex;align-items:center;gap:16px;
  padding:24px 56px 24px 0;font-size:17.5px;font-weight:700;color:var(--t1);
  transition:color .2s var(--ease);
}
.accordion-title::before{
  content:"";position:absolute;left:-18px;top:24px;bottom:24px;width:3px;border-radius:3px;
  background:var(--lime);transform:scaleY(0);transform-origin:top;transition:transform .24s var(--ease);
}
.accordion-title:hover{color:var(--ink-soft)}
.accordion-title::after{
  content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:32px;height:32px;border-radius:50%;background:#EEF3EF;color:var(--ink);
  display:grid;place-items:center;font-size:18px;font-weight:700;line-height:1;
  transition:background .22s var(--ease),color .22s var(--ease),transform .26s var(--ease);
}
.accordion-item.is-open .accordion-title::before{transform:scaleY(1)}
.accordion-item.is-open .accordion-title::after{content:"–";background:var(--lime);color:var(--dark);transform:translateY(-50%) rotate(180deg)}
.accordion-content{display:none;padding:0 56px 26px 0}
.accordion-item.is-open .accordion-content{display:block!important}
.accordion-content p{color:var(--t2);font-size:15.5px;line-height:1.85;margin:0 0 14px}
.accordion-content p:last-child{margin-bottom:0}
.accordion-content ul{margin:12px 0 0;display:grid;gap:8px}
.accordion-content li{position:relative;padding-left:20px;color:var(--t2);font-size:15.5px;line-height:1.8}
.accordion-content li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--lime)}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--dark) url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  border-radius:var(--r-lg);padding:56px;color:#F4FFF9;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(11,31,26,.95),rgba(18,60,51,.8));
}
.cta-band__inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.4fr) auto;gap:36px;align-items:center}
.cta-band h2{color:#F4FFF9;font-size:clamp(24px,2.6vw,34px);margin-bottom:14px}
.cta-band p{color:rgba(244,255,249,.78);font-size:16px;line-height:1.85;margin:0;max-width:44em}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#F4FFF9;padding:72px 0 28px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));gap:44px}
.foot-brand .brand__cn{color:#F4FFF9}
.foot-brand .brand__sub{color:rgba(244,255,249,.6)}
.foot-brand .brand__mark{background:var(--lime);color:var(--dark)}
.foot-brand p{margin-top:20px;color:rgba(244,255,249,.68);font-size:14.5px;line-height:1.85;max-width:30em}
.foot-social{display:flex;gap:10px;margin-top:22px}
.foot-social a{
  width:40px;height:40px;border-radius:11px;background:rgba(244,255,249,.08);
  display:grid;place-items:center;color:#F4FFF9;font-size:15px;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.foot-social a:hover{background:var(--lime);color:var(--dark);transform:translateY(-3px)}
.foot-col h4{font-size:15px;color:#F4FFF9;margin-bottom:18px;letter-spacing:.02em}
.foot-col ul{display:grid;gap:12px}
.foot-col a,.foot-col p{color:rgba(244,255,249,.68);font-size:14.5px;line-height:1.8}
.foot-col a{transition:color .2s var(--ease)}
.foot-col a:hover{color:var(--lime)}
.foot-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(244,255,249,.14);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
  font-size:13.5px;color:rgba(244,255,249,.6);
}
.foot-bottom a{color:rgba(244,255,249,.78);transition:color .2s var(--ease)}
.foot-bottom a:hover{color:var(--lime)}

/* 渐入 */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .container{padding:0 22px}
  .feed-item{grid-template-columns:280px minmax(0,1fr)}
}
@media (max-width:1024px){
  body{font-size:16.5px}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .topbar__tools .tool-btn span{display:none}
  .topbar__tools .tool-btn{width:38px;padding:0;justify-content:center}
  .page-hero__inner{grid-template-columns:minmax(0,1fr);gap:36px;padding-top:58px;padding-bottom:58px}
  .page-hero h1{font-size:clamp(30px,4.6vw,44px)}
  .headline-split{grid-template-columns:minmax(0,1fr);gap:18px;align-items:start}
  .value-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .scene-card--wide,.scene-card--narrow{grid-column:span 1}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step::after{display:none}
  .cta-band{padding:44px 32px}
  .cta-band__inner{grid-template-columns:minmax(0,1fr);gap:26px}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}
}
@media (max-width:768px){
  .menu-btn{display:grid}
  .topbar__tools .tool-btn{display:none}
  .topbar__tools .tool-btn--cta{display:inline-flex}
  .topbar{height:58px}
  .site-header.is-scrolled .topbar{height:52px}
  .brand__mark{width:34px;height:34px;font-size:16px}
  .brand__cn{font-size:15.5px}
  .chan-link{padding:0 13px;font-size:14.5px}
  .feed-item{grid-template-columns:minmax(0,1fr)}
  .feed-thumb{min-height:190px;aspect-ratio:16/10}
  .feed-body{padding:22px 20px}
  .feed-body h3{font-size:19.5px}
  .section{padding:58px 0}
  .trend-box{padding:26px 20px}
  .accordion-title{font-size:16.5px;padding:20px 48px 20px 0}
  .accordion-content{padding:0 0 22px}
  .scene-grid{grid-template-columns:minmax(0,1fr)}
  .steps{grid-template-columns:minmax(0,1fr)}
  .foot-grid{grid-template-columns:minmax(0,1fr)}
  .foot-bottom{flex-direction:column;gap:8px}
  .cta-band{padding:36px 22px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .page-hero h1{font-size:30px}
  .page-hero .lead{font-size:16px}
  .btn{width:100%;justify-content:center;padding:0 18px}
  .btn-group{width:100%}
  .search-form{flex-direction:column}
  .search-form button{width:100%}
  .feed-meta{gap:12px}
  .arrow-link{margin-left:0;width:100%}
  .value-item{grid-template-columns:48px minmax(0,1fr);gap:16px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#123C33;
  --ink-deep:#0E2F28;
  --lime:#C6FF4A;
  --orange:#FF7A45;
  --bg:#F6F7F4;
  --paper:#FFFFFF;
  --dark:#0B1F1A;
  --text:#0F1A18;
  --muted:#4A5A55;
  --weak:#7C8B86;
  --line:#DDE5DF;
  --info:#2E9E83;
  --r-card:16px;
  --r-img:14px;
  --r-btn:8px;
  --sh-1:0 1px 2px rgba(18,60,51,.06);
  --sh-2:0 12px 32px rgba(18,60,51,.08);
  --sh-3:0 20px 46px rgba(18,60,51,.18);
  --ease:cubic-bezier(.2,.8,.2,1);
  --t:220ms;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--t) var(--ease)}
a:hover{color:var(--ink)}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:background var(--t) var(--ease),color var(--t) var(--ease),transform var(--t) var(--ease),border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.btn i{transition:transform var(--t) var(--ease)}
.btn:hover i{transform:translateX(4px)}
.btn--primary{background:var(--ink);color:#F4FFF9;box-shadow:var(--sh-1)}
.btn--primary:hover{background:var(--lime);color:var(--ink);transform:translateY(-2px);box-shadow:0 10px 26px rgba(18,60,51,.18)}
.btn--ghost{background:transparent;color:#F4FFF9;border-color:rgba(244,255,249,.36)}
.btn--ghost:hover{background:rgba(198,255,74,.14);border-color:var(--lime);color:var(--lime)}
.btn--dark-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--dark-ghost:hover{background:#EEF3EF;border-color:var(--info);color:var(--ink)}
.btn--accent{background:var(--orange);color:#fff}
.btn--accent:hover{background:#ff6a2e;color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(255,122,69,.32)}
.btn--sm{padding:9px 16px;font-size:14px}

/* ============ 标签 / 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.02em;line-height:1.6;
}
.badge--soft{background:#E7F3EA;color:var(--ink)}
.badge--lime{background:var(--lime);color:#0B1F1A}
.badge--line{background:rgba(255,255,255,.14);color:#F4FFF9;border:1px solid rgba(244,255,249,.28)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--lime);display:inline-block}
.dot--orange{background:var(--orange)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t) var(--ease);
}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(18,60,51,.07)}
.topbar__inner{display:flex;align-items:center;gap:20px;min-height:62px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand__mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--ink) 0%,var(--ink-deep) 100%);
  color:var(--lime);display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:800;letter-spacing:0;
  box-shadow:inset 0 0 0 1px rgba(198,255,74,.32);
}
.brand__text{display:flex;flex-direction:column;line-height:1.2}
.brand__cn{font-size:17px;font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.brand__sub{font-size:11.5px;color:var(--weak);letter-spacing:.06em}
.topbar__tools{margin-left:auto;display:flex;align-items:center;gap:8px}
.tool-btn{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 14px;border-radius:999px;border:1px solid var(--line);
  background:#fff;font-size:13.5px;font-weight:600;color:var(--muted);cursor:pointer;
  transition:all var(--t) var(--ease);
}
.tool-btn:hover{background:#EEF3EF;color:var(--ink);border-color:#C9D8CE}
.tool-btn--cta{background:var(--ink);color:#F4FFF9;border-color:var(--ink)}
.tool-btn--cta:hover{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.nav-burger{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;color:var(--ink);font-size:16px;
}
.nav-burger:hover{background:#EEF3EF}

/* 搜索面板 */
.searchbar{display:none;border-top:1px solid var(--line);background:#fff}
.searchbar.is-open{display:block;animation:dropIn 200ms var(--ease)}
@keyframes dropIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
.searchbar__inner{padding:18px 0 22px;display:flex;flex-wrap:wrap;gap:18px;align-items:flex-start}
.search-form{flex:1 1 420px;max-width:520px;display:flex;gap:8px}
.search-form input{
  flex:1 1 auto;height:48px;padding:0 16px;border:1px solid var(--line);
  border-radius:var(--r-btn);background:var(--bg);font-size:15px;
  transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease),background var(--t) var(--ease);
}
.search-form input:focus{outline:none;background:#fff;border-color:var(--lime);box-shadow:0 0 0 3px rgba(198,255,74,.35)}
.search-form button{
  height:48px;padding:0 22px;border:0;border-radius:var(--r-btn);
  background:var(--ink);color:#F4FFF9;font-weight:700;cursor:pointer;
  transition:all var(--t) var(--ease);
}
.search-form button:hover{background:var(--lime);color:var(--ink)}
.hotwords{flex:1 1 320px}
.hotwords__title{font-size:12.5px;font-weight:700;color:var(--weak);letter-spacing:.08em;margin-bottom:10px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:999px;border:1px solid transparent;
  background:#EEF3EF;color:var(--ink);font-size:13px;font-weight:600;cursor:pointer;
  transition:all var(--t) var(--ease);
}
.chip:hover{background:var(--lime);color:#0B1F1A;transform:translateY(-1px)}
.chip.is-active{background:var(--ink);color:#F4FFF9;border-color:var(--ink)}
.chip.is-active:hover{background:var(--ink-deep);color:#F4FFF9}

/* 频道行 */
.chanbar{border-top:1px solid var(--line);background:#fff}
.chanbar__inner{display:flex;align-items:center;gap:6px;min-height:46px;overflow-x:auto;scrollbar-width:none}
.chanbar__inner::-webkit-scrollbar{display:none}
.chan-link{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  padding:12px 16px;font-size:14.5px;font-weight:600;color:var(--muted);
  white-space:nowrap;transition:color var(--t) var(--ease);
}
.chan-link i{font-size:12.5px;opacity:.75}
.chan-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:4px;height:3px;border-radius:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left center;
  transition:transform var(--t) var(--ease);
}
.chan-link:hover{color:var(--ink)}
.chan-link:hover::after{transform:scaleX(1)}
.chan-link.is-active{color:var(--ink);font-weight:800}
.chan-link.is-active::after{transform:scaleX(1)}

/* 移动抽屉 */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:86%;max-width:360px;
  background:#fff;z-index:120;padding:20px 20px 32px;overflow-y:auto;
  transform:translateX(102%);transition:transform 260ms var(--ease);
  box-shadow:-16px 0 40px rgba(11,31,26,.18);
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer__close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;
  cursor:pointer;color:var(--ink);font-size:17px;
}
.drawer__close:hover{background:#EEF3EF}
.drawer__group{margin-bottom:26px}
.drawer__group h4{font-size:12.5px;letter-spacing:.1em;color:var(--weak);font-weight:700;margin-bottom:12px}
.drawer__link{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 4px;border-bottom:1px solid var(--line);font-size:15px;font-weight:600;color:var(--muted);
}
.drawer__link:hover{color:var(--ink)}
.drawer__link.is-active{color:var(--ink);font-weight:800}
.drawer__link.is-active::before{
  content:"";display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--lime);margin-right:8px;vertical-align:middle;
}
.scrim{
  position:fixed;inset:0;background:rgba(11,31,26,.44);z-index:110;
  opacity:0;pointer-events:none;transition:opacity var(--t) var(--ease);
}
.scrim.is-open{opacity:1;pointer-events:auto}
body.is-locked{overflow:hidden}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;color:#F4FFF9;
  background:var(--dark) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero__overlay{
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(11,31,26,.95) 0%,rgba(18,60,51,.88) 52%,rgba(11,31,26,.74) 100%);
}
.hero__grid{
  position:absolute;inset:0;opacity:.5;
  background-image:
    linear-gradient(to right,rgba(198,255,74,.13) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(198,255,74,.13) 1px,transparent 1px);
  background-size:72px 72px;
  mask-image:radial-gradient(circle at 30% 20%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 30% 20%,#000 0%,transparent 78%);
}
.hero__inner{position:relative;z-index:2;padding:34px 0 68px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13px;color:rgba(244,255,249,.68)}
.crumb a:hover{color:var(--lime)}
.crumb span{color:rgba(244,255,249,.42)}
.hero__layout{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:56px;align-items:center;margin-top:26px}
.hero h1{
  font-size:clamp(30px,3.9vw,54px);line-height:1.16;font-weight:800;letter-spacing:-.025em;
  margin:16px 0 18px;color:#fff;
}
.hero h1 em{font-style:normal;color:var(--lime);position:relative}
.hero__lead{font-size:16.5px;line-height:1.85;color:rgba(244,255,249,.82);max-width:600px}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero__stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;
  margin-top:38px;border-top:1px solid rgba(244,255,249,.16);padding-top:22px;
}
.stat{padding-right:18px;position:relative}
.stat + .stat{padding-left:20px;border-left:1px solid rgba(244,255,249,.16)}
.stat__num{
  font-family:"DIN Alternate","SFMono-Regular",Consolas,monospace;
  font-size:clamp(24px,2.6vw,34px);font-weight:800;color:var(--lime);line-height:1.1;
  letter-spacing:-.02em;
}
.stat__num small{font-size:13px;margin-left:3px;color:rgba(244,255,249,.72);font-weight:600}
.stat__label{font-size:12.5px;color:rgba(244,255,249,.62);margin-top:6px;letter-spacing:.03em}
.hero__media{
  position:relative;border-radius:20px;overflow:hidden;
  box-shadow:var(--sh-3);border:1px solid rgba(198,255,74,.22);
}
.hero__media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover}
.hero__media-tag{
  position:absolute;left:16px;bottom:16px;display:flex;flex-wrap:wrap;gap:8px;
}

/* ============ 板块通用 ============ */
.section{padding:76px 0}
.section--tight{padding:56px 0}
.section--dark{background:var(--dark);color:#F4FFF9}
.section--paper{background:var(--paper)}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px}
.sec-head__left{max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;
  letter-spacing:.12em;color:var(--info);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime);border-radius:2px}
.sec-title{font-size:clamp(24px,2.6vw,34px);font-weight:800;letter-spacing:-.02em;line-height:1.3;position:relative;padding-left:18px}
.sec-title::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:3px;background:var(--lime)}
.section--dark .sec-title{color:#fff}
.sec-desc{font-size:15.5px;color:var(--muted);line-height:1.85;margin-top:12px}
.section--dark .sec-desc{color:rgba(244,255,249,.72)}
.sec-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--ink);
  border-bottom:2px solid var(--lime);padding-bottom:3px;
}
.sec-link i{transition:transform var(--t) var(--ease)}
.sec-link:hover i{transform:translateX(5px)}
.section--dark .sec-link{color:var(--lime);border-color:rgba(198,255,74,.5)}

/* 居中分割线标题 */
.rule-head{text-align:center;max-width:760px;margin:0 auto 40px;position:relative;padding:26px 0}
.rule-head::before,.rule-head::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);width:120px;height:1px;background:var(--line);
}
.rule-head::before{top:0}
.rule-head::after{bottom:0}
.rule-head h2{font-size:clamp(24px,2.8vw,34px);font-weight:800;letter-spacing:-.02em;line-height:1.3}
.rule-head h2 span{color:var(--ink);border-bottom:3px solid var(--lime);padding-bottom:2px}
.rule-head p{margin-top:12px;font-size:15.5px;color:var(--muted);line-height:1.85}

/* ============ 筛选排序条 ============ */
.filter-bar{
  position:sticky;top:108px;z-index:40;
  background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
  border:1px solid var(--line);border-radius:14px;
  padding:14px 18px;display:flex;flex-wrap:wrap;align-items:center;gap:16px;
  box-shadow:var(--sh-1);margin-bottom:32px;
}
.filter-bar__label{font-size:13px;font-weight:700;color:var(--weak);letter-spacing:.06em}
.filter-chips{display:flex;flex-wrap:wrap;gap:8px}
.sort-group{margin-left:auto;display:flex;align-items:center;gap:6px;border-left:1px solid var(--line);padding-left:16px}
.sort-btn{
  padding:7px 13px;border-radius:999px;border:1px solid var(--line);background:#fff;
  font-size:13px;font-weight:600;color:var(--muted);cursor:pointer;
  transition:all var(--t) var(--ease);
}
.sort-btn:hover{background:#EEF3EF;color:var(--ink)}
.sort-btn.is-active{background:var(--ink);border-color:var(--ink);color:#F4FFF9}

/* ============ 资源矩阵 ============ */
.matrix{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.res-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.res-card:hover{transform:translateY(-6px);box-shadow:var(--sh-2);border-color:var(--lime)}
.res-card.is-hidden{display:none}
.res-card--wide{grid-column:span 2}
.res-card__media{position:relative;display:block;overflow:hidden;background:#E8EDE8}
.res-card__media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  transition:transform 420ms var(--ease);
}
.res-card--wide .res-card__media img{aspect-ratio:21/9}
.res-card:hover .res-card__media img{transform:scale(1.06)}
.res-card__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,31,26,0) 42%,rgba(11,31,26,.5) 100%);
  opacity:0;transition:opacity var(--t) var(--ease);
}
.res-card:hover .res-card__media::after{opacity:1}
.res-card__tag{position:absolute;left:14px;top:14px;z-index:2}
.res-card__body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto}
.res-card__body h3{
  font-size:17.5px;font-weight:800;line-height:1.42;letter-spacing:-.01em;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.res-card__body p{
  font-size:14px;line-height:1.78;color:var(--muted);margin-top:9px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.res-card__foot{
  margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid var(--line);
}
.res-card__meta{
  font-family:"DIN Alternate","SFMono-Regular",Consolas,monospace;
  font-size:12.5px;color:var(--weak);letter-spacing:.02em;
}
.res-card__go{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;color:var(--ink);
}
.res-card__go i{transition:transform var(--t) var(--ease)}
.res-card:hover .res-card__go i{transform:translateX(4px)}
.matrix-empty{
  grid-column:1/-1;text-align:center;padding:56px 20px;border:1px dashed var(--line);
  border-radius:var(--r-card);color:var(--weak);background:#FBFCFA;font-size:14.5px;
}
.matrix-empty i{display:block;font-size:26px;color:#C9D8CE;margin-bottom:12px}

/* ============ 专题三卡 ============ */
.trio{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}
.trio-card{
  position:relative;border-radius:20px;overflow:hidden;min-height:340px;
  display:flex;align-items:flex-end;color:#F4FFF9;
  border:1px solid rgba(18,60,51,.08);
  box-shadow:var(--sh-2);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.trio-card:hover{transform:translateY(-6px);box-shadow:var(--sh-3)}
.trio-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 520ms var(--ease)}
.trio-card:hover img{transform:scale(1.07)}
.trio-card__mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,31,26,.16) 0%,rgba(11,31,26,.78) 62%,rgba(11,31,26,.94) 100%);
}
.trio-card__body{position:relative;z-index:2;padding:24px}
.trio-card__body h3{font-size:20px;font-weight:800;line-height:1.4;margin:12px 0 9px;color:#fff}
.trio-card__body p{font-size:14px;line-height:1.78;color:rgba(244,255,249,.8)}
.trio-card__body .sec-link{color:var(--lime);border-color:rgba(198,255,74,.55);margin-top:14px;font-size:13.5px}

/* ============ 深色三步 ============ */
.dark-inner{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:56px;align-items:start}
.steps{display:flex;flex-direction:column;gap:0}
.step{
  display:grid;grid-template-columns:70px minmax(0,1fr);gap:20px;
  padding:26px 4px;border-bottom:1px solid rgba(244,255,249,.14);
  transition:background var(--t) var(--ease);
}
.step:first-child{border-top:1px solid rgba(244,255,249,.14)}
.step:hover{background:rgba(198,255,74,.05)}
.step__num{
  font-family:"DIN Alternate","SFMono-Regular",Consolas,monospace;
  font-size:32px;font-weight:800;color:var(--lime);line-height:1;letter-spacing:-.03em;
}
.step h3{font-size:18px;font-weight:800;color:#fff;margin-bottom:8px}
.step p{font-size:14.5px;line-height:1.85;color:rgba(244,255,249,.72)}
.dark-side{
  background:rgba(244,255,249,.05);border:1px solid rgba(198,255,74,.22);
  border-radius:18px;padding:28px;
}
.dark-side img{border-radius:12px;aspect-ratio:16/10;object-fit:cover;width:100%;margin-bottom:20px}
.dark-side h3{font-size:19px;font-weight:800;color:#fff;margin-bottom:12px;letter-spacing:-.01em}
.dark-side ul{display:flex;flex-direction:column;gap:12px;margin-top:6px}
.dark-side li{display:flex;gap:10px;font-size:14.5px;color:rgba(244,255,249,.78);line-height:1.7}
.dark-side li i{color:var(--lime);font-size:12px;margin-top:7px;flex:0 0 auto}

/* ============ 服务/资料列表（左标题右列表） ============ */
.split{display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);gap:52px;align-items:start}
.split__aside{position:relative;padding-right:16px}
.split__aside h2{font-size:clamp(24px,2.6vw,32px);font-weight:800;letter-spacing:-.02em;line-height:1.34;margin-bottom:14px}
.split__aside p{font-size:15px;color:var(--muted);line-height:1.85}
.split__aside .btn{margin-top:24px}
.ledger{border-top:1px solid var(--line)}
.ledger__row{
  display:grid;grid-template-columns:64px minmax(0,1fr) 130px;gap:20px;align-items:center;
  padding:22px 6px;border-bottom:1px solid var(--line);
  transition:background var(--t) var(--ease),padding-left var(--t) var(--ease);
}
.ledger__row:hover{background:#FBFCFA;padding-left:14px}
.ledger__idx{
  font-family:"DIN Alternate","SFMono-Regular",Consolas,monospace;
  font-size:19px;font-weight:800;color:#B8C7BE;
}
.ledger__row:hover .ledger__idx{color:var(--info)}
.ledger__body h3{font-size:16.5px;font-weight:800;line-height:1.5;margin-bottom:6px}
.ledger__body p{font-size:14px;color:var(--muted);line-height:1.75}
.ledger__meta{text-align:right;font-size:12.5px;color:var(--weak);font-family:"DIN Alternate","SFMono-Regular",Consolas,monospace}

/* ============ FAQ ============ */
.faq{max-width:860px;margin:0 auto;border-top:1px solid var(--line)}
.faq__item{border-bottom:1px solid var(--line)}
.faq__q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:22px 18px 22px 20px;background:transparent;border:0;cursor:pointer;
  position:relative;transition:background var(--t) var(--ease);
}
.faq__q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:2px;
  background:var(--lime);transform:scaleY(0);transform-origin:top;transition:transform var(--t) var(--ease);
}
.faq__item.is-open .faq__q::before{transform:scaleY(1)}
.faq__q:hover{background:#FBFCFA}
.faq__q span{flex:1 1 auto;font-size:16.5px;font-weight:700;line-height:1.6;letter-spacing:-.01em}
.faq__ico{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--ink);font-size:12px;
  transition:transform var(--t) var(--ease),background var(--t) var(--ease),color var(--t) var(--ease);
}
.faq__item.is-open .faq__ico{background:var(--ink);border-color:var(--ink);color:var(--lime);transform:rotate(180deg)}
.faq__a{max-height:0;overflow:hidden;transition:max-height 300ms var(--ease)}
.faq__a p{padding:0 60px 24px 20px;font-size:15px;line-height:1.88;color:var(--muted)}

/* ============ CTA ============ */
.cta-band{
  background:linear-gradient(120deg,var(--ink) 0%,var(--ink-deep) 62%,var(--dark) 100%);
  border-radius:22px;padding:44px;position:relative;overflow:hidden;color:#F4FFF9;
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:44px;align-items:center;
  box-shadow:var(--sh-2);
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.4;
  background-image:linear-gradient(to right,rgba(198,255,74,.14) 1px,transparent 1px),linear-gradient(to bottom,rgba(198,255,74,.14) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(circle at 78% 30%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 78% 30%,#000 0%,transparent 72%);
}
.cta-band__text{position:relative;z-index:2}
.cta-band__text h2{font-size:clamp(23px,2.5vw,31px);font-weight:800;line-height:1.34;letter-spacing:-.02em;color:#fff;margin-bottom:14px}
.cta-band__text p{font-size:15px;line-height:1.85;color:rgba(244,255,249,.78)}
.cta-band__points{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.cta-form{position:relative;z-index:2;background:rgba(244,255,249,.06);border:1px solid rgba(198,255,74,.2);border-radius:16px;padding:24px}
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;font-weight:700;color:rgba(244,255,249,.68);letter-spacing:.06em;margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid rgba(244,255,249,.2);background:rgba(11,31,26,.42);color:#F4FFF9;font-size:14.5px;
  transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease),background var(--t) var(--ease);
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:rgba(244,255,249,.42)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--lime);box-shadow:0 0 0 3px rgba(198,255,74,.28);background:rgba(11,31,26,.62);
}
.field select option{color:#0F1A18;background:#fff}
.form-note{font-size:12.5px;color:rgba(244,255,249,.55);line-height:1.7;margin-top:10px}
.form-msg{display:none;margin-top:12px;font-size:13.5px;color:var(--lime);font-weight:600}
.form-msg.is-show{display:block}
.cta-form .btn{width:100%;justify-content:center;margin-top:4px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-deep);color:#F4FFF9;margin-top:0;padding:64px 0 28px}
.foot-grid{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));gap:44px}
.foot-brand .brand__cn{color:#fff}
.foot-brand .brand__sub{color:rgba(244,255,249,.55)}
.foot-brand .brand__mark{background:rgba(244,255,249,.08);box-shadow:inset 0 0 0 1px rgba(198,255,74,.4)}
.foot-brand p{font-size:14px;line-height:1.85;color:rgba(244,255,249,.66);margin-top:18px;max-width:380px}
.foot-social{display:flex;gap:10px;margin-top:20px}
.foot-social a{
  width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(244,255,249,.07);border:1px solid rgba(244,255,249,.14);color:rgba(244,255,249,.78);font-size:14px;
  transition:all var(--t) var(--ease);
}
.foot-social a:hover{background:var(--lime);color:#0B1F1A;border-color:var(--lime);transform:translateY(-2px)}
.foot-col h4{font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--lime);margin-bottom:16px}
.foot-col ul{display:flex;flex-direction:column;gap:11px}
.foot-col a,.foot-col p{font-size:14px;color:rgba(244,255,249,.68);line-height:1.8}
.foot-col a:hover{color:var(--lime)}
.foot-bottom{
  margin-top:46px;padding-top:20px;border-top:1px solid rgba(244,255,249,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(244,255,249,.5);
}
.foot-bottom a{color:rgba(244,255,249,.72)}
.foot-bottom a:hover{color:var(--lime)}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(22px);transition:opacity 620ms var(--ease),transform 620ms var(--ease)}
.reveal.is-in{opacity:1;transform:translateY(0)}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .matrix{grid-template-columns:repeat(3,minmax(0,1fr))}
  .res-card--wide{grid-column:span 2}
}
@media (max-width:1024px){
  .section{padding:64px 0}
  .hero__layout{grid-template-columns:minmax(0,1fr);gap:38px}
  .hero__media{max-width:640px}
  .dark-inner,.split,.cta-band{grid-template-columns:minmax(0,1fr);gap:34px}
  .trio{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px}
  .filter-bar{top:100px}
}
@media (max-width:860px){
  .topbar__tools .tool-btn--text{display:none}
  .chanbar{display:none}
  .nav-burger{display:flex}
  .matrix{grid-template-columns:repeat(2,minmax(0,1fr))}
  .res-card--wide{grid-column:span 2}
  .res-card--wide .res-card__media img{aspect-ratio:16/10}
  .hero__stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 0}
  .stat:nth-child(3){padding-left:0;border-left:0}
  .ledger__row{grid-template-columns:48px minmax(0,1fr);gap:14px}
  .ledger__meta{grid-column:2;text-align:left}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .section{padding:52px 0}
  .section--tight{padding:44px 0}
  .hero__inner{padding:24px 0 48px}
  .hero h1{margin:14px 0 14px}
  .cta-band{padding:28px 20px;border-radius:18px}
  .faq__a p{padding:0 20px 22px 20px}
  .filter-bar{position:static;padding:14px}
  .sort-group{margin-left:0;border-left:0;padding-left:0;width:100%}
}
@media (max-width:520px){
  body{font-size:15.5px}
  .matrix{grid-template-columns:minmax(0,1fr)}
  .res-card--wide{grid-column:span 1}
  .trio{grid-template-columns:minmax(0,1fr)}
  .hero__stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat{padding-right:10px}
  .stat + .stat{padding-left:14px}
  .stat__num{font-size:24px}
  .brand__sub{display:none}
  .sec-head{flex-direction:column;align-items:flex-start}
  .btn{padding:12px 18px;font-size:14.5px}
  .foot-grid{grid-template-columns:minmax(0,1fr)}
  .step{grid-template-columns:52px minmax(0,1fr);gap:14px}
  .step__num{font-size:26px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --pine:#123C33;
  --pine-deep:#0B1F1A;
  --lime:#C6FF4A;
  --orange:#FF7A45;
  --teal:#2E9E83;
  --mint:#EEF3EF;
  --bg:#F6F7F4;
  --paper:#FFFFFF;
  --line:#DDE5DF;
  --ink:#0F1A18;
  --ink-2:#4A5A55;
  --ink-3:#7C8B86;
  --white:#F4FFF9;
  --r-card:16px;
  --r-img:14px;
  --r-btn:8px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,60,51,.06);
  --sh-2:0 12px 32px rgba(18,60,51,.08);
  --sh-3:0 20px 48px rgba(18,60,51,.16);
  --ease:cubic-bezier(.2,.8,.2,1);
  --t:220ms;
  --s1:4px;--s2:8px;--s3:12px;--s4:16px;--s5:24px;--s6:32px;--s7:48px;--s8:64px;--s9:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;line-height:1.75;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--t) var(--ease);}
a:hover{color:var(--pine);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.22;letter-spacing:-.02em;color:var(--pine);}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:4px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
[id]{scroll-margin-top:130px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;border:1px solid transparent;
  transition:all var(--t) var(--ease);white-space:nowrap;
}
.btn i{transition:transform var(--t) var(--ease);}
.btn:hover i{transform:translateX(4px);}
.btn--primary{background:var(--pine);color:#fff;}
.btn--primary:hover{background:var(--lime);color:var(--pine);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn--lime{background:var(--lime);color:var(--pine);}
.btn--lime:hover{background:var(--orange);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn--ghost-light{border-color:rgba(244,255,249,.34);color:var(--white);background:transparent;}
.btn--ghost-light:hover{border-color:var(--lime);color:var(--lime);background:rgba(198,255,74,.08);transform:translateY(-2px);}
.btn--ghost{border-color:var(--line);color:var(--pine);background:var(--paper);}
.btn--ghost:hover{border-color:var(--lime);background:var(--mint);transform:translateY(-2px);}
.btn--sm{height:40px;padding:0 18px;font-size:14px;}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:120;}
.topbar{background:rgba(255,255,255,.95);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:62px;transition:min-height var(--t) var(--ease);}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand__mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:var(--pine);color:var(--lime);
  display:grid;place-items:center;font-size:19px;font-weight:800;
}
.brand__text{display:flex;flex-direction:column;line-height:1.22;}
.brand__cn{font-size:17px;font-weight:800;color:var(--pine);letter-spacing:-.01em;white-space:nowrap;}
.brand__sub{font-size:12px;color:var(--ink-3);letter-spacing:.08em;}
.topbar__tools{display:flex;align-items:center;gap:8px;}
.tool-btn{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 15px;
  border-radius:var(--r-pill);border:1px solid var(--line);background:var(--paper);
  color:var(--ink-2);font-size:14px;font-weight:600;
  transition:all var(--t) var(--ease);
}
.tool-btn:hover{border-color:var(--lime);background:var(--mint);color:var(--pine);transform:translateY(-1px);}
.tool-btn--cta{background:var(--pine);border-color:var(--pine);color:#fff;}
.tool-btn--cta:hover{background:var(--lime);border-color:var(--lime);color:var(--pine);}
.menu-btn{display:none;width:40px;height:38px;border-radius:10px;border:1px solid var(--line);background:var(--paper);color:var(--pine);font-size:16px;align-items:center;justify-content:center;}
.site-header.is-scrolled .topbar__inner{min-height:56px;}
.site-header.is-scrolled .brand__sub{display:none;}
.site-header.is-scrolled .topbar{box-shadow:var(--sh-1);}

/* 搜索面板 */
.search-panel{background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--sh-2);padding:18px 0 20px;}
.search-form{
  display:flex;align-items:center;gap:12px;max-width:760px;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-pill);
  padding:5px 5px 5px 20px;transition:border-color var(--t) var(--ease);}
.search-form:focus-within{border-color:var(--lime);box-shadow:0 0 0 3px rgba(198,255,74,.28);}
.search-form>i{color:var(--ink-3);font-size:15px;}
.search-form input{flex:1;min-width:0;height:38px;border:0;background:transparent;font-size:15px;color:var(--ink);outline:none;}
.search-form input::placeholder{color:var(--ink-3);}
.chip-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:16px;}
.chip-row__label{font-size:13px;font-weight:700;color:var(--ink-3);letter-spacing:.06em;}
.chip{padding:6px 14px;border-radius:var(--r-pill);background:var(--mint);color:var(--pine);font-size:13px;font-weight:600;transition:all var(--t) var(--ease);}
.chip:hover{background:var(--lime);color:var(--ink);transform:translateY(-1px);}

/* 频道栏 */
.chanbar{background:var(--paper);border-bottom:1px solid var(--line);}
.chanbar__inner{display:flex;align-items:center;gap:6px;min-height:48px;overflow-x:auto;scrollbar-width:none;}
.chanbar__inner::-webkit-scrollbar{display:none;}
.chan-link{
  position:relative;display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:8px;font-size:15px;font-weight:600;
  color:var(--ink-2);white-space:nowrap;transition:all var(--t) var(--ease);
}
.chan-link i{font-size:13px;opacity:.72;}
.chan-link:hover{background:var(--mint);color:var(--pine);}
.chan-link.is-active{color:var(--pine);font-weight:800;}
.chan-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:3px;background:var(--lime);
}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--pine-deep);color:var(--white);padding:76px 0 84px;}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(198,255,74,.075) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(198,255,74,.075) 1px,transparent 1px);
  background-size:48px 48px;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;opacity:.2;
}
.hero__inner{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center;}
.hero__eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(198,255,74,.13);border:1px solid rgba(198,255,74,.3);
  color:var(--lime);font-size:13px;font-weight:700;letter-spacing:.04em;
}
.hero__title{margin:22px 0 0;font-size:clamp(30px,3.8vw,52px);line-height:1.16;color:#fff;letter-spacing:-.03em;max-width:15em;}
.hero__lead{margin-top:22px;font-size:17px;line-height:1.82;color:rgba(244,255,249,.78);max-width:34em;}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;}
.hero__facts{display:flex;flex-wrap:wrap;gap:40px;margin-top:42px;padding-top:26px;border-top:1px solid rgba(198,255,74,.2);}
.hero__facts li{display:flex;flex-direction:column;gap:2px;}
.hero__facts strong{font-family:"DIN Alternate","Roboto Mono",ui-monospace,monospace;font-size:32px;font-weight:800;color:var(--lime);letter-spacing:-.02em;line-height:1.1;}
.hero__facts span{font-size:13px;color:rgba(244,255,249,.6);}
.hero__media{position:relative;border-radius:20px;overflow:hidden;border:1px solid rgba(198,255,74,.2);box-shadow:var(--sh-3);}
.hero__media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero__tag{
  position:absolute;left:16px;bottom:16px;padding:8px 15px;border-radius:var(--r-pill);
  background:rgba(11,31,26,.82);color:var(--lime);font-size:13px;font-weight:600;
  border:1px solid rgba(198,255,74,.28);
}

/* ---------- 阶段索引 ---------- */
.stage-nav{background:var(--paper);border-bottom:1px solid var(--line);}
.stage-nav__inner{display:flex;align-items:center;gap:20px;padding:14px 24px;overflow-x:auto;scrollbar-width:none;}
.stage-nav__inner::-webkit-scrollbar{display:none;}
.stage-nav__label{font-size:13px;font-weight:800;color:var(--ink-3);letter-spacing:.12em;white-space:nowrap;}
.stage-nav ol{display:flex;gap:8px;flex-wrap:nowrap;}
.stage-nav a{
  display:inline-flex;align-items:center;gap:8px;padding:8px 15px;border-radius:var(--r-pill);
  background:var(--bg);font-size:14px;font-weight:600;color:var(--ink-2);white-space:nowrap;
  transition:all var(--t) var(--ease);
}
.stage-nav a span{font-family:ui-monospace,"Roboto Mono",monospace;font-size:12px;font-weight:800;color:var(--teal);}
.stage-nav a:hover{background:var(--lime);color:var(--pine);transform:translateY(-2px);}
.stage-nav a:hover span{color:var(--pine);}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section--paper{background:var(--paper);}
.section--tight{padding:64px 0;}
.kicker{display:inline-block;font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--teal);margin-bottom:14px;}
.section-head{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,430px);gap:44px;align-items:end;
  margin-bottom:52px;padding-bottom:26px;border-bottom:1px solid var(--line);
}
.section-head h2{font-size:clamp(24px,2.6vw,36px);line-height:1.24;letter-spacing:-.025em;}
.section-head__note{font-size:15px;line-height:1.82;color:var(--ink-2);}

/* ---------- 时间线 ---------- */
.timeline{border-top:1px solid var(--line);}
.tl-item{
  display:grid;grid-template-columns:132px minmax(0,1fr);gap:36px;
  padding:40px 0;border-bottom:1px solid var(--line);
  transition:background var(--t) var(--ease);
}
.tl-item:hover{background:rgba(238,243,239,.55);}
.tl-num{
  font-family:"DIN Alternate","Roboto Mono",ui-monospace,monospace;
  font-size:48px;font-weight:800;line-height:1;color:#D8E2DB;letter-spacing:-.03em;
  transition:color var(--t) var(--ease);
}
.tl-item:hover .tl-num{color:var(--teal);}
.tl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:14px;}
.badge{display:inline-block;padding:4px 13px;border-radius:var(--r-pill);background:var(--mint);color:var(--pine);font-size:12px;font-weight:700;}
.badge--lime{background:var(--lime);color:var(--ink);}
.badge--orange{background:rgba(255,122,69,.14);color:#C24A18;}
.tl-time{font-size:13px;font-weight:600;color:var(--ink-3);}
.tl-title{font-size:clamp(20px,2vw,24px);margin-bottom:12px;}
.tl-desc{font-size:16px;line-height:1.86;color:var(--ink-2);max-width:62ch;}
.tl-points{display:grid;gap:10px;margin-top:20px;}
.tl-points li{position:relative;padding-left:24px;font-size:15px;line-height:1.8;color:var(--ink-2);}
.tl-points li::before{
  content:"";position:absolute;left:3px;top:11px;width:7px;height:7px;border-radius:50%;
  background:var(--lime);box-shadow:0 0 0 3px rgba(198,255,74,.22);
}
.tl-foot{margin-top:22px;}
.text-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--pine);
  border-bottom:2px solid var(--lime);padding-bottom:2px;transition:all var(--t) var(--ease);
}
.text-link:hover{color:var(--teal);gap:14px;}

/* ---------- 指标 ---------- */
.f-grid--metrics{margin-bottom:-16px;}
.metric-card{
  height:100%;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);
  transition:all var(--t) var(--ease);
}
.metric-card:hover{transform:translateY(-4px);border-color:var(--lime);box-shadow:var(--sh-2);}
.metric-card h3{font-size:17px;margin-bottom:6px;}
.metric-card>p{font-size:14px;line-height:1.72;color:var(--ink-3);margin-bottom:22px;min-height:3.4em;}
.metric-values{display:flex;align-items:baseline;gap:10px;margin-bottom:18px;}
.metric-values strong{font-family:"DIN Alternate","Roboto Mono",ui-monospace,monospace;font-size:36px;font-weight:800;color:var(--pine);letter-spacing:-.03em;line-height:1;}
.metric-values em{font-style:normal;font-size:13px;color:var(--ink-3);}
.metric-line{display:grid;grid-template-columns:52px 1fr 40px;align-items:center;gap:10px;margin-bottom:10px;}
.metric-line__label{font-size:12px;font-weight:700;color:var(--ink-3);}
.metric-line__val{font-family:ui-monospace,"Roboto Mono",monospace;font-size:13px;font-weight:700;color:var(--pine);text-align:right;}
.bar{height:9px;border-radius:var(--r-pill);background:var(--mint);overflow:hidden;}
.bar__fill{display:block;height:100%;width:var(--w,0);border-radius:var(--r-pill);background:linear-gradient(90deg,#8FB8AB,var(--pine));transition:width .8s var(--ease);}
.bar__fill--after{background:linear-gradient(90deg,var(--teal),var(--lime));}

/* ---------- 误区 ---------- */
.pitfall{
  height:100%;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);transition:all var(--t) var(--ease);
}
.pitfall:hover{transform:translateY(-4px);border-color:var(--lime);box-shadow:var(--sh-2);}
.pitfall__wrong{display:flex;gap:12px;align-items:flex-start;}
.pitfall__wrong i{color:var(--orange);font-size:16px;margin-top:5px;}
.pitfall__wrong span{font-size:16px;font-weight:700;color:var(--pine);line-height:1.55;}
.pitfall__right{margin-top:18px;padding-top:18px;border-top:1px dashed var(--line);font-size:15px;line-height:1.82;color:var(--ink-2);}
.pitfall__right b{color:var(--teal);font-weight:800;}

/* ---------- FAQ ---------- */
.faq-list{max-width:920px;margin:0 auto;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:26px 4px;font-size:17px;font-weight:700;color:var(--pine);
  cursor:pointer;list-style:none;transition:color var(--t) var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--teal);}
.faq-item summary .ico{
  flex:0 0 28px;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;font-size:12px;color:var(--pine);
  transition:all var(--t) var(--ease);
}
.faq-item[open] summary .ico{background:var(--lime);border-color:var(--lime);transform:rotate(45deg);}
.faq-item[open] summary{color:var(--teal);}
.faq-answer{padding:0 4px 28px;font-size:16px;line-height:1.86;color:var(--ink-2);max-width:76ch;}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--pine);color:var(--white);padding:68px 0;}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,74,.2),transparent 70%);pointer-events:none;
}
.cta-band__inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);max-width:22em;line-height:1.28;}
.cta-band p{margin:14px 0 0;font-size:15px;line-height:1.8;color:rgba(244,255,249,.72);max-width:46em;}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--pine-deep);color:rgba(244,255,249,.72);padding:76px 0 28px;font-size:14px;}
.foot-grid{display:grid;grid-template-columns:1.55fr 1fr 1fr 1.2fr;gap:48px;}
.foot-brand .brand__mark{background:var(--lime);color:var(--pine);}
.foot-brand .brand__cn{color:#fff;}
.foot-brand .brand__sub{color:rgba(244,255,249,.5);}
.foot-brand p{margin-top:22px;font-size:14px;line-height:1.82;color:rgba(244,255,249,.6);max-width:34em;}
.foot-social{display:flex;gap:10px;margin-top:22px;}
.foot-social a{
  width:38px;height:38px;border-radius:10px;border:1px solid rgba(244,255,249,.18);
  display:grid;place-items:center;color:rgba(244,255,249,.75);font-size:14px;
  transition:all var(--t) var(--ease);
}
.foot-social a:hover{background:var(--lime);border-color:var(--lime);color:var(--pine);transform:translateY(-2px);}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.02em;}
.foot-col ul{display:grid;gap:11px;}
.foot-col a{color:rgba(244,255,249,.68);}
.foot-col a:hover{color:var(--lime);}
.foot-col p{line-height:1.82;color:rgba(244,255,249,.6);}
.foot-col p a{color:var(--lime);}
.foot-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(244,255,249,.14);
  font-size:13px;color:rgba(244,255,249,.5);
}
.foot-bottom a{color:var(--lime);}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,350px);
  background:var(--paper);z-index:200;padding:24px;overflow-y:auto;
  box-shadow:var(--sh-3);transform:translateX(101%);
  transition:transform 260ms var(--ease);
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);}
.drawer__title{font-size:16px;font-weight:800;color:var(--pine);}
.drawer__close{width:34px;height:34px;border-radius:9px;border:1px solid var(--line);color:var(--pine);display:grid;place-items:center;font-size:15px;}
.drawer__group{margin-top:26px;}
.drawer__group h4{font-size:13px;font-weight:800;letter-spacing:.12em;color:var(--ink-3);margin-bottom:12px;}
.drawer__group a{display:block;padding:11px 12px;border-radius:10px;font-size:15px;font-weight:600;color:var(--ink-2);transition:all var(--t) var(--ease);}
.drawer__group a:hover{background:var(--mint);color:var(--pine);}
.drawer__group a.is-active{background:var(--mint);color:var(--pine);font-weight:800;box-shadow:inset 3px 0 0 var(--lime);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,31,26,.52);z-index:190;
  opacity:0;visibility:hidden;transition:opacity 260ms var(--ease),visibility 260ms;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ---------- 滚动渐入 ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .62s var(--ease),transform .62s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .hero__inner{gap:44px;}
}
@media (max-width:1024px){
  .section{padding:72px 0;}
  .hero{padding:60px 0 68px;}
  .hero__inner{grid-template-columns:1fr;gap:40px;}
  .hero__media{order:2;max-width:620px;}
  .section-head{grid-template-columns:1fr;gap:20px;align-items:start;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:40px;}
  .tl-item{grid-template-columns:100px minmax(0,1fr);gap:26px;}
  .tl-num{font-size:42px;}
  .topbar__tools .tool-btn--ghost{display:none;}
}
@media (max-width:900px){
  .tool-btn__txt{display:none;}
  .tool-btn{width:40px;padding:0;justify-content:center;border-radius:12px;}
  .tool-btn--cta{width:auto;padding:0 16px;}
  .tool-btn--cta .tool-btn__txt{display:inline;}
  .menu-btn{display:inline-flex;}
  .chanbar__inner{padding:0 24px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .section--tight{padding:44px 0;}
  .hero{padding:48px 0 56px;}
  .hero__facts{gap:26px;margin-top:32px;padding-top:22px;}
  .hero__facts strong{font-size:26px;}
  .tl-item{grid-template-columns:1fr;gap:16px;padding:32px 0;}
  .tl-num{font-size:36px;}
  .metric-card>p{min-height:0;}
  .cta-band{padding:52px 0;}
  .cta-band__inner{flex-direction:column;align-items:flex-start;}
  .site-footer{padding:56px 0 24px;}
  .foot-grid{grid-template-columns:1fr;gap:34px;}
  .foot-bottom{flex-direction:column;gap:8px;}
  .faq-item summary{font-size:16px;padding:22px 2px;}
}
@media (max-width:520px){
  .brand__sub{display:none;}
  .brand__cn{font-size:15px;white-space:normal;}
  .brand__mark{width:36px;height:36px;flex-basis:36px;font-size:17px;}
  .hero__title{font-size:30px;}
  .hero__actions .btn{width:100%;}
  .hero__facts{width:100%;justify-content:space-between;gap:12px;}
  .section-head h2{font-size:24px;}
  .topbar__tools{gap:6px;}
  .tool-btn--cta{padding:0 12px;font-size:13px;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .reveal{opacity:1;transform:none;}
}