/* roulang page: index */
:root{
  --bg-0:#0A0F0D;
  --bg-1:#101713;
  --bg-2:#16201B;
  --ink-0:#F4F1EA;
  --ink-1:#B9C2BC;
  --ink-2:#7C8783;
  --brand:#C8F04B;
  --brand-ink:#0A0F0D;
  --accent:#FF5A2B;
  --accent-3:#1FBF75;
  --line:rgba(244,241,234,.10);
  --line-strong:rgba(244,241,234,.18);
  --glow:rgba(200,240,75,.35);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --shadow-1:inset 0 1px 0 rgba(255,255,255,.04), 0 8px 24px rgba(0,0,0,.45);
  --shadow-2:0 18px 44px rgba(0,0,0,.55), 0 0 0 1px var(--glow);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:.28s;
  --dur-slow:.5s;
  --container:1280px;
  --font-sans:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}

/* ===== reset & base ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink-0);
  font-family:var(--font-sans);
  font-size:1rem;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.15;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
::selection{background:var(--brand);color:var(--brand-ink);}

/* ===== container ===== */
.wrap{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:992px){.wrap{padding-left:40px;padding-right:40px;}}
@media (min-width:1400px){:root{--container:1360px;}.wrap{padding-left:56px;padding-right:56px;}}

/* ===== 顶部信息条 ===== */
.topbar{
  background:var(--bg-1);
  border-bottom:1px solid var(--line);
  font-size:.75rem;
  letter-spacing:.04em;
  color:var(--ink-2);
}
.topbar .wrap{
  height:34px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.topbar-left{display:flex;align-items:center;gap:12px;min-width:0;}
.topbar-domain{color:var(--ink-1);font-weight:600;letter-spacing:.06em;white-space:nowrap;}
.topbar-note{
  color:var(--ink-2);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.topbar-note::before{content:"";display:inline-block;width:4px;height:4px;border-radius:50%;background:var(--accent-3);vertical-align:middle;margin-right:8px;}
.topbar-right{display:flex;align-items:center;gap:20px;}
.topbar-right a{color:var(--ink-2);border-bottom:2px solid transparent;padding-bottom:2px;}
.topbar-right a:hover{color:var(--brand);border-bottom-color:var(--brand);}
@media (max-width:767px){
  .topbar .wrap{height:28px;}
  .topbar-note{display:none;}
  .topbar-right a:not(:last-child){display:none;}
}

/* ===== 主导航 ===== */
.sitehead{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(10,15,13,.72);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.sitehead.is-stuck{
  background:rgba(10,15,13,.86);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.navrow{
  height:84px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  transition:height var(--dur) var(--ease);
}
.sitehead.is-stuck .navrow{height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:32px;height:32px;
  border-radius:10px;
  background:linear-gradient(140deg,var(--brand),#8FBF1F);
  color:var(--brand-ink);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:.9rem;
  letter-spacing:-.04em;
}
.brand-text{
  font-size:1.05rem;
  font-weight:700;
  color:var(--ink-0);
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand-text small{display:block;font-size:.68rem;font-weight:500;color:var(--ink-2);letter-spacing:.14em;line-height:1.2;}
.navmenu{display:flex;align-items:center;gap:28px;}
.navmenu a{
  position:relative;
  font-size:.9375rem;
  color:var(--ink-1);
  padding:6px 0;
  white-space:nowrap;
}
.navmenu a::after{
  content:"";
  position:absolute;
  left:50%;bottom:0;
  height:2px;width:0;
  background:var(--brand);
  transform:translateX(-50%);
  transition:width .2s var(--ease);
}
.navmenu a:hover{color:var(--ink-0);}
.navmenu a:hover::after{width:100%;}
.navmenu a.active{color:var(--ink-0);font-weight:600;}
.navmenu a.active::after{width:100%;}
.navtools{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.iconbtn{
  width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);
  border-radius:10px;
  background:transparent;
  color:var(--ink-1);
  transition:all var(--dur) var(--ease);
}
.iconbtn:hover{border-color:var(--brand);color:var(--brand);background:rgba(200,240,75,.08);}
.burger{display:none;}

/* 按钮体系 */
.btn-brand{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand);
  color:var(--brand-ink);
  border:1px solid var(--brand);
  border-radius:var(--r-md);
  padding:13px 26px;
  font-weight:600;
  font-size:.9375rem;
  line-height:1.2;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),filter var(--dur) var(--ease);
}
.btn-brand:hover{filter:brightness(1.08);box-shadow:0 12px 30px rgba(200,240,75,.18);color:var(--brand-ink);}
.btn-brand:active{transform:translateY(1px);}
.btn-brand.pill{border-radius:var(--r-pill);padding:11px 22px;font-size:.875rem;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;
  color:var(--ink-0);
  border:1px solid var(--line-strong);
  border-radius:var(--r-md);
  padding:13px 26px;
  font-weight:600;
  font-size:.9375rem;
  line-height:1.2;
  transition:all var(--dur) var(--ease);
}
.btn-ghost:hover{border-color:var(--brand);background:rgba(200,240,75,.08);color:var(--ink-0);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.875rem;
  color:var(--ink-1);
  font-weight:600;
  white-space:nowrap;
}
.btn-text .arw{transition:transform var(--dur) var(--ease);}
.btn-text:hover{color:var(--brand);}
.btn-text:hover .arw{transform:translateX(4px);}

/* ===== Hero ===== */
.hero{
  position:relative;
  min-height:78vh;
  display:flex;
  align-items:flex-end;
  overflow:hidden;
  background-color:var(--bg-2);
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  margin-top:-85px;
  padding-top:85px;
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,15,13,.96) 0%,rgba(10,15,13,.72) 42%,rgba(10,15,13,.28) 100%);
}
.hero::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;height:180px;
  background:linear-gradient(180deg,rgba(10,15,13,0) 0%,var(--bg-0) 100%);
}
.hero-inner{
  position:relative;
  z-index:2;
  width:100%;
  padding-top:64px;
  padding-bottom:72px;
}
.hero-copy{max-width:640px;}
.chip{
  display:inline-flex;align-items:center;
  padding:5px 12px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  color:var(--ink-1);
  font-size:.75rem;
  letter-spacing:.04em;
}
.chip-live{
  background:var(--accent);
  border-color:var(--accent);
  color:#fff;
  font-weight:600;
}
.chip-key{
  background:rgba(200,240,75,.10);
  border-color:rgba(200,240,75,.24);
  color:var(--brand);
}
.chip-soft{background:rgba(31,191,117,.10);border-color:rgba(31,191,117,.28);color:var(--accent-3);}
.hero-tag{margin-bottom:20px;display:flex;gap:8px;flex-wrap:wrap;}
.hero h1{
  font-size:clamp(2.5rem,6.2vw,5rem);
  font-weight:800;
  line-height:1.05;
  letter-spacing:-.03em;
  margin-bottom:20px;
}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{
  font-size:1.125rem;
  line-height:1.75;
  color:var(--ink-1);
  max-width:560px;
  margin-bottom:28px;
}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;}
.hero-stats{
  margin-top:36px;
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
  font-size:.8125rem;
  color:var(--ink-2);
  letter-spacing:.04em;
}
.hero-stats span.num{color:var(--ink-0);font-weight:700;font-variant-numeric:tabular-nums;}
.hero-stats .dot{color:var(--line-strong);}
.scrollcue{
  position:absolute;
  right:40px;bottom:44px;
  z-index:3;
  width:44px;height:44px;
  border-radius:50%;
  border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;
  color:var(--ink-1);
  animation:cueMove 1.6s var(--ease) infinite;
}
@keyframes cueMove{0%,100%{transform:translateY(0);}50%{transform:translateY(8px);}}
@media (max-width:991px){
  .hero{margin-top:-73px;padding-top:73px;}
  .scrollcue{display:none;}
}
@media (max-width:767px){
  .hero{min-height:62vh;margin-top:-65px;padding-top:65px;}
  .hero-inner{padding-top:40px;padding-bottom:48px;}
  .hero-sub{font-size:1rem;}
}

/* ===== 区块通用 ===== */
.section{padding:64px 0;}
@media (min-width:768px){.section{padding:96px 0;}}
@media (min-width:1200px){.section{padding:110px 0;}}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
}
.sec-head h2{
  font-size:clamp(1.5rem,2.4vw,2rem);
  position:relative;
  padding-left:16px;
  margin-bottom:8px;
}
.sec-head h2::before{
  content:"";
  position:absolute;left:0;top:.18em;
  width:4px;height:1em;
  background:var(--brand);
  border-radius:2px;
}
.sec-desc{color:var(--ink-2);font-size:.875rem;padding-left:16px;letter-spacing:.02em;}

/* ===== 卡片 ===== */
.cardx{
  display:block;
  background:var(--bg-2);
  border:1px solid var(--line-strong);
  border-radius:var(--r-lg);
  overflow:hidden;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
  height:100%;
}
.cardx:hover{
  transform:translateY(-6px);
  border-color:var(--glow);
  box-shadow:var(--shadow-2);
}
.cardx-cover{
  position:relative;
  background:var(--bg-2);
  overflow:hidden;
}
.cardx-cover img{
  width:100%;height:100%;object-fit:cover;
  transition:transform var(--dur-slow) var(--ease);
}
.cardx:hover .cardx-cover img{transform:scale(1.05);}
.ratio-16x9{aspect-ratio:16/9;}
.ratio-3x4{aspect-ratio:3/4;}
.ratio-1x1{aspect-ratio:1/1;}
.badge-cat{
  position:absolute;top:12px;left:12px;
  padding:4px 10px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  background:rgba(10,15,13,.72);
  backdrop-filter:blur(6px);
  color:var(--ink-1);
  font-size:.72rem;
  letter-spacing:.04em;
}
.badge-hot{
  position:absolute;top:12px;right:12px;
  padding:4px 10px;
  border-radius:var(--r-pill);
  background:var(--accent);
  color:#fff;
  font-size:.72rem;
  font-weight:600;
  letter-spacing:.04em;
}
.cardx-body{padding:16px;}
.cardx-title{
  font-size:1rem;
  font-weight:600;
  line-height:1.5;
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.cardx:hover .cardx-title{color:var(--brand);}
.cardx-sum{
  font-size:.875rem;
  line-height:1.7;
  color:var(--ink-1);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:12px;
}
.cardx-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:.75rem;
  letter-spacing:.06em;
  color:var(--ink-2);
  border-top:1px solid var(--line);
  padding-top:12px;
}
.cardx-meta .go{transition:transform var(--dur) var(--ease);color:var(--ink-1);}
.cardx:hover .cardx-meta .go{transform:translateX(4px);color:var(--brand);}

/* ===== 横滑轨道 ===== */
.railwrap{position:relative;}
.rail{
  display:flex;
  gap:16px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  scrollbar-width:none;
  padding-bottom:8px;
}
.rail::-webkit-scrollbar{display:none;}
.rail > *{scroll-snap-align:start;flex:0 0 auto;width:260px;}
@media (min-width:992px){.rail > *{width:300px;}}
.railbtn{
  position:absolute;top:38%;z-index:4;
  width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line-strong);
  background:rgba(10,15,13,.86);
  backdrop-filter:blur(8px);
  color:var(--ink-0);
  display:none;align-items:center;justify-content:center;
  transition:all var(--dur) var(--ease);
}
.railbtn:hover{border-color:var(--brand);color:var(--brand);}
.railbtn.prev{left:-22px;}
.railbtn.next{right:-22px;}
@media (min-width:992px){.railbtn{display:flex;}}

/* ===== 热播错落栅格 ===== */
.hotgrid{display:grid;gap:24px;grid-template-columns:1fr;}
@media (min-width:992px){.hotgrid{grid-template-columns:1.15fr 1fr;}}
.hot-main{position:relative;display:block;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-strong);background:var(--bg-2);transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease);}
.hot-main:hover{border-color:var(--glow);transform:translateY(-6px);}
.hot-main img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;}
.hot-main .shade{position:absolute;inset:0;background:linear-gradient(0deg,rgba(10,15,13,.94) 0%,rgba(10,15,13,.30) 48%,rgba(10,15,13,.05) 100%);}
.hot-main .txt{position:absolute;left:24px;right:24px;bottom:24px;}
.hot-main .txt h3{font-size:clamp(1.2rem,1.7vw,1.5rem);margin:10px 0 8px;}
.hot-main .txt p{color:var(--ink-1);font-size:.875rem;margin:0;}
.bignum{
  position:absolute;right:18px;bottom:6px;
  font-size:96px;font-weight:800;line-height:1;
  color:transparent;
  -webkit-text-stroke:1px var(--line-strong);
  letter-spacing:-.05em;
  pointer-events:none;
}
.hot-side{display:grid;gap:24px;grid-template-columns:1fr;}
@media (min-width:576px){.hot-side{grid-template-columns:1fr 1fr;}}
.minicard{
  display:grid;
  grid-template-columns:96px 1fr;
  gap:14px;
  padding:12px;
  background:var(--bg-2);
  border:1px solid var(--line-strong);
  border-radius:var(--r-md);
  transition:all var(--dur) var(--ease);
  align-items:center;
}
.minicard:hover{border-color:var(--glow);transform:translateY(-4px);}
.minicard .thumb{width:96px;height:96px;border-radius:var(--r-sm);overflow:hidden;background:var(--bg-1);}
.minicard .thumb img{width:100%;height:100%;object-fit:cover;}
.minicard h4{font-size:.9375rem;line-height:1.5;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.minicard:hover h4{color:var(--brand);}
.minicard span{font-size:.72rem;color:var(--ink-2);letter-spacing:.06em;}

/* ===== Tab 片单 ===== */
.tabnav{
  display:flex;gap:28px;flex-wrap:wrap;
  border-bottom:1px solid var(--line);
  margin-bottom:32px;
}
.tabnav button{
  background:none;border:0;
  padding:0 0 14px;
  margin-bottom:-1px;
  color:var(--ink-1);
  font-size:.9375rem;
  position:relative;
  transition:color var(--dur) var(--ease);
}
.tabnav button::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand);transform:scaleX(0);transition:transform .2s var(--ease);}
.tabnav button:hover{color:var(--ink-0);}
.tabnav button.active{color:var(--ink-0);font-weight:600;}
.tabnav button.active::after{transform:scaleX(1);}
.grid3{display:grid;gap:24px;grid-template-columns:1fr;}
@media (min-width:768px){.grid3{grid-template-columns:repeat(2,1fr);}}
@media (min-width:992px){.grid3{grid-template-columns:repeat(3,1fr);}}

/* ===== 指标条 ===== */
.metrics{
  display:grid;
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  grid-template-columns:1fr;
}
@media (min-width:576px){.metrics{grid-template-columns:1fr 1fr;}}
@media (min-width:992px){.metrics{grid-template-columns:repeat(4,1fr);}}
.metric{
  background:var(--bg-2);
  padding:28px 24px;
}
.metric .num{
  font-size:clamp(1.75rem,3vw,2.5rem);
  font-weight:800;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.03em;
  line-height:1.1;
  margin-bottom:6px;
}
.metric .lbl{font-size:.875rem;color:var(--ink-1);margin-bottom:4px;}
.metric .sub{font-size:.75rem;color:var(--ink-2);letter-spacing:.04em;}

/* ===== CMS 资讯列表 ===== */
.news-grid{display:grid;gap:0 24px;grid-template-columns:1fr;}
@media (min-width:1200px){.news-grid{grid-template-columns:1fr 1fr;}}
.news-item{
  display:grid;
  grid-template-columns:120px 1fr 24px;
  gap:16px;
  align-items:flex-start;
  padding:20px 0;
  border-bottom:1px solid var(--line);
  transition:background var(--dur) var(--ease);
}
.news-item:hover{background:rgba(244,241,234,.02);}
.news-thumb{width:120px;height:80px;border-radius:var(--r-sm);overflow:hidden;background:var(--bg-2);flex-shrink:0;}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-body{min-width:0;}
.news-title{
  display:block;
  font-size:1rem;
  font-weight:600;
  line-height:1.5;
  margin:8px 0 6px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color var(--dur) var(--ease);
}
.news-item:hover .news-title{color:var(--brand);}
.news-sum{
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  font-size:.875rem;
  color:var(--ink-1);
  line-height:1.7;
  margin-bottom:8px;
}
.news-meta{font-size:.75rem;color:var(--ink-2);letter-spacing:.06em;}
.news-arrow{
  align-self:center;
  color:var(--ink-2);
  transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);
}
.news-item:hover .news-arrow{transform:translateX(4px);color:var(--brand);}
@media (max-width:575px){
  .news-item{grid-template-columns:96px 1fr;gap:12px;}
  .news-thumb{width:96px;height:68px;}
  .news-arrow{display:none;}
}
.empty-state{
  border:1px dashed var(--line-strong);
  border-radius:var(--r-md);
  padding:48px 24px;
  text-align:center;
  color:var(--ink-2);
}
.empty-state svg{width:32px;height:32px;margin-bottom:14px;color:var(--accent-3);}
.empty-state p{margin-bottom:18px;font-size:.9375rem;}

/* ===== FAQ ===== */
.faq .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
}
.faq .accordion-button{
  background:transparent;
  color:var(--ink-0);
  font-size:1.0625rem;
  font-weight:600;
  padding:20px 40px 20px 0;
  box-shadow:none;
  border-radius:0;
}
.faq .accordion-button:not(.collapsed){color:var(--brand);background:transparent;box-shadow:none;}
.faq .accordion-button::after{
  display:none;
}
.faq .accordion-button .plus{
  position:absolute;right:0;top:50%;
  width:20px;height:20px;margin-top:-10px;
  transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);
  color:var(--ink-2);
}
.faq .accordion-button::before,
.faq .accordion-button::after{display:none;}
.faq .accordion-button .plus::before,
.faq .accordion-button .plus::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq .accordion-button .plus::before{left:0;top:9px;width:20px;height:2px;}
.faq .accordion-button .plus::after{left:9px;top:0;width:2px;height:20px;}
.faq .accordion-button:not(.collapsed) .plus{transform:rotate(45deg);color:var(--brand);}
.faq .accordion-body{
  padding:0 0 24px;
  color:var(--ink-1);
  font-size:.9375rem;
  line-height:1.8;
}
.faq .accordion-button:focus{box-shadow:none;}

/* ===== CTA 横幅 ===== */
.cta{
  position:relative;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  overflow:hidden;
}
.cta-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:0;
}
@media (min-width:992px){.cta-grid{grid-template-columns:1.05fr .95fr;}}
.cta-left{padding:64px 0;}
.cta-left h2{font-size:clamp(1.5rem,2.4vw,2rem);margin-bottom:12px;}
.cta-left p{color:var(--ink-1);margin-bottom:24px;max-width:420px;}
.cta-form{display:flex;gap:12px;max-width:460px;}
.cta-form .form-control{
  height:48px;
  background:var(--bg-2);
  border:1px solid var(--line-strong);
  border-radius:var(--r-sm);
  color:var(--ink-0);
  padding:0 16px;
  font-size:.9375rem;
}
.cta-form .form-control::placeholder{color:var(--ink-2);}
.cta-form .form-control:focus{
  background:var(--bg-2);
  color:var(--ink-0);
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(200,240,75,.15);
}
.cta-right{
  position:relative;
  min-height:280px;
  overflow:hidden;
}
.cta-right img{
  position:absolute;inset:0;
  width:100%;height:100%;object-fit:cover;
  transform:scale(1.4);
  opacity:.55;
}
.cta-right::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(90deg,var(--bg-1) 0%,rgba(16,23,19,.55) 40%,rgba(16,23,19,.15) 100%);
}
@media (max-width:991px){
  .cta-left{padding:56px 0 24px;}
  .cta-right{min-height:220px;}
  .cta-right::after{background:linear-gradient(0deg,var(--bg-1) 0%,rgba(16,23,19,.35) 60%,rgba(16,23,19,.15) 100%);}
}
@media (max-width:575px){
  .cta-form{flex-direction:column;}
  .cta-form .btn-brand{width:100%;justify-content:center;}
}

/* ===== 页脚 ===== */
.sitefoot{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding-top:64px;
}
.footgrid{
  display:grid;
  gap:40px 32px;
  grid-template-columns:1fr;
}
@media (min-width:768px){.footgrid{grid-template-columns:1fr 1fr;}}
@media (min-width:1200px){.footgrid{grid-template-columns:1.4fr 1fr 1fr 1fr;}}
.foot-brand p{color:var(--ink-2);font-size:.875rem;line-height:1.8;margin:14px 0 18px;max-width:320px;}
.foot-social{display:flex;gap:10px;}
.foot-social a{
  width:34px;height:34px;border-radius:10px;
  border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;
  color:var(--ink-2);
  font-size:.75rem;
}
.foot-social a:hover{border-color:var(--brand);color:var(--brand);}
.foot-col h4{
  font-size:.8125rem;
  color:var(--ink-2);
  letter-spacing:.1em;
  font-weight:600;
  margin-bottom:18px;
}
.foot-col li{margin-bottom:12px;}
.foot-col a{font-size:.9375rem;color:var(--ink-1);}
.foot-col a:hover{color:var(--brand);}
.foot-bottom{
  margin-top:56px;
  border-top:1px solid var(--line);
  padding:20px 0 28px;
  font-size:.75rem;
  color:var(--ink-2);
  letter-spacing:.04em;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}

/* ===== 移动端抽屉 ===== */
.offcanvas{
  background:var(--bg-1);
  color:var(--ink-0);
  width:84vw;
  border-left:1px solid var(--line-strong);
}
.offcanvas-header{border-bottom:1px solid var(--line);padding:20px 22px;}
.offcanvas-title{font-size:1rem;font-weight:700;}
.offcanvas-body{padding:8px 22px 24px;}
.drawer-link{
  display:block;
  padding:18px 0;
  border-bottom:1px solid var(--line);
  color:var(--ink-1);
  font-size:1rem;
}
.drawer-link.active{color:var(--brand);font-weight:600;}
.drawer-link:hover{color:var(--ink-0);}
.btn-close{filter:invert(1) grayscale(1) brightness(1.6);}
@media (max-width:991px){
  .navmenu{display:none;}
  .burger{display:inline-flex;}
  .navtools .btn-brand{display:none;}
}

/* ===== 入场动效 ===== */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .55s var(--ease),transform .55s var(--ease);}
.reveal.in-view{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
/* ===== 设计变量 ===== */
:root{
  --bg-0:#0A0F0D;
  --bg-1:#101713;
  --bg-2:#16201B;
  --ink-0:#F4F1EA;
  --ink-1:#B9C2BC;
  --ink-2:#7C8783;
  --brand:#C8F04B;
  --brand-ink:#0A0F0D;
  --accent:#FF5A2B;
  --accent-3:#1FBF75;
  --line:rgba(244,241,234,.10);
  --line-strong:rgba(244,241,234,.18);
  --glow:rgba(200,240,75,.35);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --shadow-1:inset 0 1px 0 rgba(255,255,255,.04), 0 8px 24px rgba(0,0,0,.45);
  --shadow-2:0 18px 44px rgba(0,0,0,.55), 0 0 0 1px var(--glow);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:.28s;
  --dur-slow:.5s;
  --container:1280px;
  --font-sans:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}

/* ===== reset 与基础排版 ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink-0);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.drawer-open{overflow:hidden;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);}
button{font-family:inherit;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.2;}
p{margin:0 0 1.15em;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(200,240,75,.28);color:var(--ink-0);}

/* ===== 容器与栅格 ===== */
.wrap{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
.sec{padding:64px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.sec-title{font-size:clamp(1.5rem,2.4vw,2rem);position:relative;padding-left:16px;}
.sec-title::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;background:var(--brand);border-radius:2px;}
.sec-desc{margin:8px 0 0;color:var(--ink-1);font-size:.9375rem;}
.sec-tag{display:block;color:var(--ink-2);font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:10px;}

/* ===== 顶部信息条 ===== */
.site-head{position:sticky;top:0;z-index:1000;background:rgba(10,15,13,.94);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);}
.topbar{height:34px;background:var(--bg-1);border-bottom:1px solid var(--line);}
.topbar-in{display:flex;align-items:center;justify-content:space-between;height:100%;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:8px;font-size:.75rem;color:var(--ink-2);min-width:0;}
.dot-mark{width:6px;height:6px;border-radius:50%;background:var(--brand);flex:none;}
.topbar-note{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.topbar-right{display:flex;align-items:center;gap:20px;font-size:.75rem;color:var(--ink-1);}
.topbar-right a{position:relative;padding-bottom:2px;}
.topbar-right a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:0;background:var(--brand);transition:height var(--dur) var(--ease);}
.topbar-right a:hover{color:var(--brand);}
.topbar-right a:hover::after{height:3px;}

/* ===== 主导航 ===== */
.navwrap{border-bottom:1px solid var(--line);transition:background var(--dur) var(--ease);}
.nav-in{display:flex;align-items:center;justify-content:space-between;gap:24px;height:84px;transition:height var(--dur-slow) var(--ease);}
.site-head.is-scrolled{background:rgba(10,15,13,.86);}
.site-head.is-scrolled .nav-in{height:64px;}
.brand{display:flex;align-items:center;gap:12px;flex:none;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:none;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand);color:var(--brand-ink);
  font-weight:800;font-size:.875rem;letter-spacing:-.04em;
  box-shadow:0 0 0 1px rgba(200,240,75,.25),0 8px 20px rgba(200,240,75,.14);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;font-size:1.05rem;font-weight:700;letter-spacing:-.02em;color:var(--ink-0);}
.brand-text small{font-size:.625rem;font-weight:600;letter-spacing:.18em;color:var(--ink-2);margin-top:3px;}
.navmenu{display:flex;align-items:center;gap:28px;}
.navmenu a{position:relative;font-size:.9375rem;color:var(--ink-1);padding:6px 0;}
.navmenu a::after{content:"";position:absolute;left:50%;bottom:0;width:0;height:2px;background:var(--brand);transform:translateX(-50%);transition:width .2s var(--ease);}
.navmenu a:hover{color:var(--ink-0);}
.navmenu a:hover::after{width:100%;}
.navmenu a.active{color:var(--ink-0);}
.navmenu a.active::after{width:100%;}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none;}
.icon-btn{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line-strong);
  background:transparent;color:var(--ink-1);display:flex;align-items:center;justify-content:center;
  font-size:.875rem;transition:all var(--dur) var(--ease);
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);}
.burger{display:none;width:38px;height:38px;border-radius:10px;border:1px solid var(--line-strong);background:transparent;color:var(--ink-0);align-items:center;justify-content:center;}
.burger:hover{border-color:var(--brand);color:var(--brand);}

/* ===== 按钮 ===== */
.btn-brand,.btn-ghost,.btn-text{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;border-radius:var(--r-md);transition:all var(--dur) var(--ease);}
.btn-brand{
  background:var(--brand);color:var(--brand-ink);border:1px solid var(--brand);
  padding:14px 26px;font-size:.9375rem;
}
.btn-brand:hover{background:#d5f76b;border-color:#d5f76b;box-shadow:0 10px 28px rgba(200,240,75,.22);color:var(--brand-ink);}
.btn-brand:active{transform:translateY(1px);}
.btn-sm{padding:9px 18px;font-size:.875rem;border-radius:var(--r-pill);}
.btn-ghost{
  background:transparent;color:var(--ink-0);border:1px solid var(--line-strong);padding:13px 24px;font-size:.9375rem;
}
.btn-ghost:hover{border-color:var(--brand);background:rgba(200,240,75,.08);color:var(--ink-0);}
.btn-text{background:none;border:none;padding:0;color:var(--brand);font-size:.875rem;}
.btn-text i{transition:transform var(--dur) var(--ease);}
.btn-text:hover i{transform:translateX(4px);}
.btn-brand:focus-visible,.btn-ghost:focus-visible,.btn-text:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

/* ===== 徽章与标签 ===== */
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;font-size:.75rem;letter-spacing:.04em;
  padding:5px 12px;border-radius:var(--r-pill);border:1px solid var(--line-strong);color:var(--ink-1);
  background:rgba(244,241,234,.02);
}
.badge-key{
  display:inline-flex;align-items:center;font-size:.75rem;letter-spacing:.04em;
  padding:6px 14px;border-radius:var(--r-pill);background:rgba(200,240,75,.10);color:var(--brand);
}
.badge-hot{background:var(--accent);color:#fff;border-radius:var(--r-pill);font-size:.6875rem;letter-spacing:.06em;padding:4px 10px;font-weight:700;}

/* ===== 面包屑 ===== */
.crumb{
  display:flex;align-items:center;gap:8px;font-size:.8125rem;color:var(--ink-2);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding:28px 0 0;
}
.crumb a:hover{color:var(--brand);}
.crumb .sep{opacity:.5;}
.crumb .now{color:var(--ink-1);overflow:hidden;text-overflow:ellipsis;max-width:56ch;}

/* ===== 文章头 ===== */
.article-hero{padding:24px 0 0;}
.article-hero h1{
  font-size:clamp(2rem,4.2vw,3.25rem);line-height:1.15;letter-spacing:-.03em;
  margin:18px 0 0;max-width:16ch;
}
.article-hero h1.long{max-width:24ch;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;font-size:.75rem;letter-spacing:.06em;color:var(--ink-2);}
.article-meta .m-dot{width:4px;height:4px;border-radius:50%;background:var(--ink-2);opacity:.6;}
.article-lead{margin-top:22px;font-size:1.125rem;line-height:1.75;color:var(--ink-1);max-width:60ch;}

/* ===== 头图 ===== */
.hero-figure{margin:36px 0 0;}
.hero-figure .ratio{
  position:relative;width:100%;aspect-ratio:21/9;border-radius:var(--r-lg);overflow:hidden;background:var(--bg-2);
  box-shadow:var(--shadow-1);
}
.hero-figure .ratio img{width:100%;height:100%;object-fit:cover;}
.hero-figure figcaption{text-align:center;font-size:.8125rem;color:var(--ink-2);margin-top:12px;}

/* ===== 正文阅读区 ===== */
.reading{padding:48px 0 0;}
.reading-shell{
  max-width:760px;margin:0 auto;background:var(--bg-1);
  border:1px solid var(--line);border-radius:var(--r-lg);padding:40px;
}
.entry-content{color:var(--ink-0);font-size:1rem;line-height:1.85;}
.entry-content>*:first-child{margin-top:0;}
.entry-content p{margin:0 0 1.15em;color:var(--ink-1);}
.entry-content h2{
  position:relative;font-size:1.5625rem;line-height:1.35;color:var(--ink-0);
  margin:48px 0 16px;padding-left:16px;letter-spacing:-.02em;
}
.entry-content h2::before{content:"";position:absolute;left:0;top:.22em;width:3px;height:1em;background:var(--brand);border-radius:2px;}
.entry-content h3{font-size:1.25rem;color:var(--ink-0);margin:32px 0 12px;letter-spacing:-.01em;}
.entry-content ul,.entry-content ol{margin:0 0 1.3em;padding-left:2px;}
.entry-content ul li{position:relative;padding-left:20px;margin-bottom:10px;line-height:1.9;color:var(--ink-1);}
.entry-content ul li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;background:var(--brand);border-radius:1px;}
.entry-content ol{counter-reset:item;padding-left:0;}
.entry-content ol li{position:relative;padding-left:32px;margin-bottom:10px;line-height:1.9;color:var(--ink-1);counter-increment:item;}
.entry-content ol li::before{
  content:counter(item);position:absolute;left:0;top:.35em;width:20px;height:20px;border-radius:6px;
  background:rgba(200,240,75,.12);color:var(--brand);font-size:.6875rem;font-weight:700;
  display:flex;align-items:center;justify-content:center;line-height:1;
}
.entry-content blockquote{
  margin:1.6em 0;padding:20px 24px;border-left:3px solid var(--brand);
  background:rgba(200,240,75,.06);border-radius:var(--r-sm);color:var(--ink-1);
}
.entry-content blockquote p:last-child{margin-bottom:0;}
.entry-content img{border-radius:var(--r-md);margin:1.6em auto;max-width:100%;height:auto;}
.entry-content figure{margin:1.8em 0;}
.entry-content figcaption{text-align:center;font-size:.8125rem;color:var(--ink-2);margin-top:10px;}
.entry-content a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.entry-content a:hover{color:var(--accent);}
.entry-content code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.875em;
  background:var(--bg-2);padding:2px 6px;border-radius:4px;color:var(--ink-0);
}
.entry-content pre{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-sm);padding:18px 20px;overflow:auto;}
.entry-content pre code{background:none;padding:0;}
.entry-content table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:.9375rem;}
.entry-content thead th{
  text-align:left;font-size:.8125rem;letter-spacing:.06em;color:var(--ink-2);font-weight:600;
  padding:12px 10px;border-bottom:1px solid var(--line-strong);
}
.entry-content tbody td{padding:14px 10px;border-bottom:1px solid var(--line);color:var(--ink-1);}
.entry-content hr{border:none;border-top:1px solid var(--line);margin:2.4em 0;}

/* ===== 空态 ===== */
.empty-box{
  border:1px dashed var(--line-strong);border-radius:var(--r-md);
  text-align:center;padding:48px 24px;color:var(--ink-1);
}
.empty-box .ico{font-size:32px;color:var(--accent-3);margin-bottom:16px;display:block;}
.empty-box p{margin:0 0 20px;font-size:.9375rem;}

/* ===== 文末标签 ===== */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;}
.tag-row .lab{font-size:.75rem;color:var(--ink-2);letter-spacing:.06em;align-self:center;margin-right:4px;}

/* ===== 卡片 ===== */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.pcard{
  display:flex;flex-direction:column;background:var(--bg-2);border:1px solid var(--line-strong);
  border-radius:var(--r-lg);overflow:hidden;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.pcard:hover{transform:translateY(-6px);box-shadow:var(--shadow-2);border-color:var(--glow);}
.pcard .thumb{position:relative;aspect-ratio:16/9;background:var(--bg-2);overflow:hidden;}
.pcard .thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--dur-slow) var(--ease);}
.pcard:hover .thumb img{transform:scale(1.05);}
.pcard .thumb .badge-cat{position:absolute;left:12px;top:12px;background:rgba(10,15,13,.72);backdrop-filter:blur(6px);}
.pcard .body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.pcard h3{font-size:1.0625rem;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.pcard .excerpt{font-size:.875rem;line-height:1.7;color:var(--ink-1);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0;}
.pcard .foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:8px;font-size:.75rem;letter-spacing:.06em;color:var(--ink-2);}
.pcard .foot i{transition:transform var(--dur) var(--ease);}
.pcard:hover .foot i{transform:translateX(4px);color:var(--brand);}

/* ===== 上下篇 ===== */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:56px;}
.pager-item{
  border:1px solid var(--line-strong);border-radius:var(--r-md);padding:20px 22px;background:var(--bg-1);
  display:flex;flex-direction:column;gap:8px;transition:all var(--dur) var(--ease);
}
.pager-item:hover{border-color:var(--glow);background:var(--bg-2);}
.pager-item .k{font-size:.75rem;letter-spacing:.1em;color:var(--ink-2);display:flex;align-items:center;gap:8px;}
.pager-item .t{font-size:1rem;color:var(--ink-0);line-height:1.5;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.pager-item .t i{transition:transform var(--dur) var(--ease);}
.pager-item:hover .t i{transform:translateX(4px);color:var(--brand);}

/* ===== 页脚 ===== */
.sitefoot{border-top:1px solid var(--line);background:var(--bg-1);margin-top:96px;}
.footgrid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding:64px 0 48px;}
.foot-brand p{color:var(--ink-1);font-size:.875rem;line-height:1.8;margin:18px 0 20px;max-width:34ch;}
.foot-social{display:flex;gap:10px;flex-wrap:wrap;}
.foot-social a{
  font-size:.75rem;letter-spacing:.06em;color:var(--ink-1);border:1px solid var(--line-strong);
  border-radius:var(--r-pill);padding:6px 14px;transition:all var(--dur) var(--ease);
}
.foot-social a:hover{border-color:var(--brand);color:var(--brand);background:rgba(200,240,75,.08);}
.foot-col h4{font-size:.8125rem;letter-spacing:.1em;color:var(--ink-2);font-weight:600;margin-bottom:18px;}
.foot-col ul{display:flex;flex-direction:column;gap:12px;}
.foot-col a{font-size:.875rem;color:var(--ink-1);}
.foot-col a:hover{color:var(--brand);}
.foot-bottom{
  border-top:1px solid var(--line);padding:20px 0;display:flex;justify-content:space-between;gap:16px;
  font-size:.75rem;color:var(--ink-2);flex-wrap:wrap;
}

/* ===== 移动端抽屉 ===== */
.mobile-drawer{background:var(--bg-1);color:var(--ink-0);border-left:1px solid var(--line);}
.mobile-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
.mobile-drawer .offcanvas-body{padding:8px 20px 28px;}
.drawer-link{display:flex;align-items:center;justify-content:space-between;height:56px;border-bottom:1px solid var(--line);font-size:1rem;color:var(--ink-1);}
.drawer-link:hover{color:var(--brand);}
.drawer-cta{margin-top:24px;display:block;text-align:center;}

/* ===== 动效 ===== */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.in-view{opacity:1;transform:none;}

/* ===== 断点 ===== */
@media (min-width:1440px){
  :root{--container:1360px;}
  .wrap{padding:0 56px;}
}
@media (max-width:1199px){
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .footgrid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:991px){
  .wrap{padding:0 40px;}
  .navmenu{display:none;}
  .burger{display:flex;}
  .sec{padding:56px 0;}
  .article-hero h1{max-width:22ch;}
  .hero-figure .ratio{aspect-ratio:16/9;}
  .reading-shell{padding:32px;}
  .pager{grid-template-columns:1fr;}
  .sitefoot{margin-top:64px;}
}
@media (max-width:767px){
  .wrap{padding:0 20px;}
  .sec{padding:48px 0;}
  .topbar{height:28px;}
  .topbar-right a:not(:first-child){display:none;}
  .topbar-note{display:none;}
  .nav-in{height:64px;}
  .site-head.is-scrolled .nav-in{height:58px;}
  .brand-text{font-size:.9375rem;}
  .brand-text small{display:none;}
  .card-grid{grid-template-columns:1fr;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .reading-shell{padding:24px;border-radius:var(--r-md);}
  .article-hero h1{margin-top:14px;}
  .footgrid{grid-template-columns:1fr;padding:48px 0 32px;}
  .entry-content h2{font-size:1.375rem;}
}
@media (max-width:520px){
  .hero-figure .ratio{aspect-ratio:4/3;}
  .article-hero h1{font-size:1.75rem;}
  .article-lead{font-size:1rem;}
  .pager-item{padding:16px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --bg-0:#0A0F0D; --bg-1:#101713; --bg-2:#16201B;
  --ink-0:#F4F1EA; --ink-1:#B9C2BC; --ink-2:#7C8783;
  --brand:#C8F04B; --brand-ink:#0A0F0D; --accent:#FF5A2B; --accent-3:#1FBF75;
  --line:rgba(244,241,234,.10); --line-strong:rgba(244,241,234,.18);
  --glow:rgba(200,240,75,.35);
  --r-sm:8px; --r-md:14px; --r-lg:20px; --r-pill:999px;
  --shadow-1:inset 0 1px 0 rgba(255,255,255,.04), 0 8px 24px rgba(0,0,0,.45);
  --shadow-2:0 18px 44px rgba(0,0,0,.55), 0 0 0 1px var(--glow);
  --ease:cubic-bezier(.22,.61,.36,1); --dur:.28s; --dur-slow:.5s;
  --container:1280px;
  --font-sans:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;background:var(--bg-0);color:var(--ink-0);
  font-family:var(--font-sans);font-size:1rem;line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--brand);}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.2;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media(min-width:992px){.wrap{padding:0 40px;}}
@media(min-width:1400px){.wrap{max-width:1360px;padding:0 56px;}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--bg-1);border-bottom:1px solid var(--line);font-size:.75rem;letter-spacing:.04em;}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;min-height:34px;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:14px;color:var(--ink-2);min-width:0;}
.topbar-left .dom{color:var(--ink-1);font-variant-numeric:tabular-nums;white-space:nowrap;}
.topbar-left .tip{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.topbar-right{display:flex;align-items:center;gap:18px;white-space:nowrap;}
.topbar-right a{color:var(--ink-1);position:relative;padding-bottom:2px;}
.topbar-right a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--brand);transition:width var(--dur) var(--ease);}
.topbar-right a:hover{color:var(--brand);}
.topbar-right a:hover::after{width:100%;}
@media(max-width:767px){
  .topbar .wrap{min-height:28px;gap:10px;}
  .topbar-left .tip{display:none;}
  .topbar-right a:nth-child(2){display:none;}
}

/* ---------- 主导航 ---------- */
.sitehead{
  position:sticky;top:0;z-index:60;background:rgba(10,15,13,.86);
  backdrop-filter:blur(14px);border-bottom:1px solid transparent;
  transition:background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.sitehead.is-scrolled{border-bottom-color:var(--line);}
.headinner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:84px;transition:height var(--dur) var(--ease);}
.sitehead.is-scrolled .headinner{height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(150deg,var(--brand),#8FB82F);
  color:var(--brand-ink);font-weight:800;font-size:.8rem;display:grid;place-items:center;letter-spacing:.02em;
}
.brand-text{font-size:1.05rem;font-weight:700;color:var(--ink-0);line-height:1.1;display:flex;flex-direction:column;}
.brand-text small{font-size:.62rem;font-weight:500;letter-spacing:.14em;color:var(--ink-2);margin-top:2px;}
.navmenu{display:flex;align-items:center;gap:26px;}
.navmenu a{position:relative;font-size:.9375rem;color:var(--ink-1);padding:6px 0;}
.navmenu a::after{content:"";position:absolute;left:50%;bottom:0;width:0;height:2px;background:var(--brand);transform:translateX(-50%);transition:width .2s var(--ease);}
.navmenu a:hover{color:var(--ink-0);}
.navmenu a:hover::after{width:100%;}
.navmenu a.active{color:var(--ink-0);}
.navmenu a.active::after{width:100%;}
.head-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.icon-btn{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  background:transparent;border:1px solid var(--line-strong);color:var(--ink-1);
  transition:all var(--dur) var(--ease);
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);}
.icon-btn svg{width:16px;height:16px;}
.navtoggle{display:none;width:38px;height:38px;border-radius:10px;border:1px solid var(--line-strong);background:transparent;color:var(--ink-0);}
.navtoggle span{display:block;width:16px;height:1.5px;background:currentColor;margin:3px auto;}
@media(max-width:991px){
  .navmenu{
    position:fixed;top:0;right:0;width:84vw;max-width:340px;height:100vh;
    background:var(--bg-1);border-left:1px solid var(--line);
    flex-direction:column;align-items:flex-start;gap:0;padding:88px 24px 24px;
    transform:translateX(100%);transition:transform var(--dur-slow) var(--ease);z-index:70;
  }
  .navmenu.is-open{transform:translateX(0);}
  .navmenu a{width:100%;height:56px;display:flex;align-items:center;border-bottom:1px solid var(--line);font-size:1rem;}
  .navmenu a::after{display:none;}
  .navtoggle{display:block;}
  .head-actions .btn-brand{display:none;}
}

/* ---------- 按钮 ---------- */
.btn-brand{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand);color:var(--brand-ink);
  border:none;border-radius:var(--r-md);padding:14px 26px;
  font-size:.9375rem;font-weight:600;line-height:1;
  transition:all var(--dur) var(--ease);cursor:pointer;
}
.btn-brand:hover{background:#D6F866;color:var(--brand-ink);box-shadow:0 12px 30px rgba(200,240,75,.18);}
.btn-brand:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;color:var(--ink-0);border:1px solid var(--line-strong);
  border-radius:var(--r-md);padding:13px 24px;font-size:.9375rem;font-weight:500;line-height:1;
  transition:all var(--dur) var(--ease);cursor:pointer;
}
.btn-ghost:hover{border-color:var(--brand);background:rgba(200,240,75,.08);color:var(--ink-0);}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:.875rem;font-weight:500;}
.btn-text .arw{transition:transform var(--dur) var(--ease);}
.btn-text:hover{color:#D6F866;}
.btn-text:hover .arw{transform:translateX(4px);}

/* ---------- 徽章 / 标签 ---------- */
.badge-cat{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border:1px solid var(--line-strong);border-radius:var(--r-pill);
  font-size:.75rem;letter-spacing:.04em;color:var(--ink-1);background:transparent;
}
.badge-hot{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:var(--r-pill);font-size:.75rem;letter-spacing:.04em;
  background:var(--accent);color:#FFF6F1;font-weight:600;
}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-sm);font-size:.75rem;letter-spacing:.04em;background:rgba(200,240,75,.10);color:var(--brand);}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;isolation:isolate;
  min-height:360px;display:flex;align-items:flex-end;
  border-bottom:1px solid var(--line);
  background:var(--bg-2) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(10,15,13,.72) 0%,rgba(10,15,13,.88) 62%,var(--bg-0) 100%);
}
.cat-hero .wrap{padding-top:96px;padding-bottom:48px;position:relative;}
.crumb{display:flex;align-items:center;gap:8px;font-size:.8125rem;color:var(--ink-2);margin-bottom:22px;overflow:hidden;white-space:nowrap;}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:var(--line-strong);}
.crumb .cur{color:var(--ink-1);overflow:hidden;text-overflow:ellipsis;}
.cat-hero h1{font-size:clamp(2rem,4.2vw,3.25rem);line-height:1.15;max-width:16em;}
.cat-hero .sub{margin:18px 0 0;font-size:1.0625rem;line-height:1.75;color:var(--ink-1);max-width:640px;}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;
  border:1px solid var(--line-strong);border-radius:var(--r-pill);
  font-size:.8125rem;color:var(--ink-1);background:rgba(16,23,19,.6);
}
.chip b{color:var(--brand);font-weight:700;font-variant-numeric:tabular-nums;}

/* ---------- 主体两栏 ---------- */
.section{padding:64px 0;}
@media(min-width:768px){.section{padding:96px 0;}}
@media(min-width:1200px){.section{padding:104px 0;}}
.layout{display:grid;grid-template-columns:1fr;gap:40px;}
@media(min-width:992px){
  .layout{grid-template-columns:240px 1fr;gap:48px;align-items:start;}
}
.sidebar{position:static;}
@media(min-width:992px){
  .sidebar{position:sticky;top:96px;}
}
.side-block + .side-block{margin-top:36px;}
.side-title{
  font-size:.8125rem;letter-spacing:.1em;color:var(--ink-2);
  margin-bottom:14px;text-transform:uppercase;
}
.side-list{border-top:1px solid var(--line);}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:12px 0 12px 12px;font-size:.9375rem;color:var(--ink-1);
  border-bottom:1px solid var(--line);position:relative;
  transition:color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.side-list a::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:0;
  background:var(--brand);transition:width .2s var(--ease);
}
.side-list a:hover{color:var(--ink-0);background:rgba(244,241,234,.03);}
.side-list a:hover::before{width:2px;}
.side-list a.on{color:var(--ink-0);font-weight:600;}
.side-list a.on::before{width:2px;}
.side-list a .num{font-size:.75rem;color:var(--ink-2);font-variant-numeric:tabular-nums;}
@media(max-width:991px){
  .sidebar{overflow:hidden;}
  .side-block + .side-block{margin-top:20px;}
  .side-list{display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x mandatory;border-top:none;padding-bottom:4px;scrollbar-width:none;}
  .side-list::-webkit-scrollbar{display:none;}
  .side-list a{
    flex:0 0 auto;border:1px solid var(--line-strong);border-radius:var(--r-pill);
    padding:8px 16px;font-size:.8125rem;scroll-snap-align:start;
  }
  .side-list a::before{display:none;}
  .side-list a.on{border-color:var(--brand);color:var(--brand);}
  .side-list a .num{display:none;}
}

.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px;}
.sec-head h2{font-size:clamp(1.5rem,2.4vw,2rem);position:relative;padding-left:16px;}
.sec-head h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:2px;background:var(--brand);}
.sec-head .note{font-size:.875rem;color:var(--ink-2);margin-top:8px;}

.cards{display:grid;grid-template-columns:1fr;gap:24px;}
@media(min-width:768px){.cards{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1200px){.cards{grid-template-columns:repeat(3,1fr);}}

.card{
  display:flex;flex-direction:column;background:var(--bg-2);
  border:1px solid var(--line-strong);border-radius:var(--r-lg);
  overflow:hidden;height:100%;
  transition:transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-2);border-color:var(--glow);}
.card-cover{position:relative;aspect-ratio:16/9;background:var(--bg-1);overflow:hidden;}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform var(--dur-slow) var(--ease);}
.card:hover .card-cover img{transform:scale(1.05);}
.card-cover .badge-cat{position:absolute;left:14px;top:14px;background:rgba(10,15,13,.72);backdrop-filter:blur(6px);}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{
  font-size:1.0625rem;line-height:1.45;font-weight:700;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  margin:0;font-size:.875rem;line-height:1.7;color:var(--ink-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:.75rem;letter-spacing:.06em;color:var(--ink-2);
}
.card-foot .arw{color:var(--brand);transition:transform var(--dur) var(--ease);}
.card:hover .card-foot .arw{transform:translateX(4px);}

/* ---------- 数据条 ---------- */
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;margin-bottom:36px;}
@media(min-width:768px){.stats{grid-template-columns:repeat(4,1fr);}}
.stat{background:var(--bg-1);padding:22px 20px;}
.stat .k{font-size:.75rem;letter-spacing:.08em;color:var(--ink-2);}
.stat .v{font-size:1.75rem;font-weight:800;color:var(--brand);margin-top:8px;font-variant-numeric:tabular-nums;line-height:1.1;}
.stat .d{font-size:.8125rem;color:var(--ink-1);margin-top:6px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;}
.accordion-item{background:transparent;border:none;border-top:1px solid var(--line);}
.accordion-item:last-child{border-bottom:1px solid var(--line);}
.accordion-button{
  background:transparent;color:var(--ink-0);box-shadow:none;
  padding:20px 44px 20px 0;font-size:1.0625rem;font-weight:600;line-height:1.5;
  transition:color var(--dur) var(--ease);
}
.accordion-button:not(.collapsed){color:var(--brand);background:transparent;box-shadow:none;}
.accordion-button:hover{color:var(--brand);}
.accordion-button:focus{box-shadow:none;border-color:transparent;}
.accordion-button::after{
  content:"";position:absolute;right:14px;top:50%;width:20px;height:20px;
  transform:translateY(-50%);background:none;opacity:1;
  border-radius:0;
  background-image:linear-gradient(var(--ink-1),var(--ink-1)),linear-gradient(var(--ink-1),var(--ink-1));
  background-size:14px 1.5px,1.5px 14px;
  background-position:center,center;
  background-repeat:no-repeat;
  transition:transform var(--dur) var(--ease), background-image var(--dur) var(--ease);
}
.accordion-button:not(.collapsed)::after{
  transform:translateY(-50%) rotate(45deg);
  background-image:linear-gradient(var(--brand),var(--brand)),linear-gradient(var(--brand),var(--brand));
}
.accordion-body{padding:0 0 24px;font-size:.9375rem;line-height:1.8;color:var(--ink-1);}

/* ---------- CTA 窄条 ---------- */
.cta-strip{padding:0 0 8px;}
.strip-inner{
  max-width:560px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  background:var(--bg-1);border:1px solid var(--line-strong);border-radius:var(--r-md);
  padding:20px 24px;
}
.strip-inner span{font-size:.9375rem;color:var(--ink-1);}

/* ---------- 页脚 ---------- */
.sitefoot{background:var(--bg-1);border-top:1px solid var(--line);margin-top:48px;}
.footgrid{display:grid;grid-template-columns:1fr;gap:36px;padding:56px 0 40px;}
@media(min-width:768px){.footgrid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1200px){.footgrid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px;}}
.foot-brand p{margin:16px 0 0;font-size:.875rem;line-height:1.8;color:var(--ink-2);max-width:32em;}
.foot-social{display:flex;gap:10px;margin-top:18px;}
.foot-social a{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);font-size:.75rem;color:var(--ink-1);letter-spacing:.04em;
}
.foot-social a:hover{border-color:var(--brand);color:var(--brand);}
.foot-col h4{font-size:.8125rem;letter-spacing:.1em;color:var(--ink-2);font-weight:600;margin-bottom:16px;}
.foot-col li + li{margin-top:10px;}
.foot-col a{font-size:.875rem;color:var(--ink-1);}
.foot-bottom{
  border-top:1px solid var(--line);padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.75rem;color:var(--ink-2);letter-spacing:.04em;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);}
.reveal.in-view{opacity:1;transform:none;}
.reveal.d1{transition-delay:.06s;}
.reveal.d2{transition-delay:.12s;}
.reveal.d3{transition-delay:.18s;}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --bg-0:#0A0F0D;
  --bg-1:#101713;
  --bg-2:#16201B;
  --ink-0:#F4F1EA;
  --ink-1:#B9C2BC;
  --ink-2:#7C8783;
  --brand:#C8F04B;
  --brand-ink:#0A0F0D;
  --accent:#FF5A2B;
  --accent-3:#1FBF75;
  --line:rgba(244,241,234,.10);
  --line-strong:rgba(244,241,234,.18);
  --glow:rgba(200,240,75,.35);
  --font-sans:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --shadow-1:inset 0 1px 0 rgba(255,255,255,.04),0 8px 24px rgba(0,0,0,.45);
  --shadow-2:0 18px 44px rgba(0,0,0,.55),0 0 0 1px var(--glow);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:.28s;
  --dur-slow:.5s;
  --container:1280px;
  --sect:64px;
}
@media (min-width:768px){:root{--sect:96px}}
@media (min-width:1200px){:root{--sect:128px}}

/* ============ reset 与基础排版 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink-0);
  font-family:var(--font-sans);
  font-size:1rem;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.2}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
b,strong{font-weight:700}
.tnum{font-variant-numeric:tabular-nums}
::selection{background:var(--brand);color:var(--brand-ink)}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}

/* ============ 容器与栅格 ============ */
.wrap{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:992px){.wrap{padding:0 40px}}
@media (min-width:1400px){.wrap{max-width:1360px;padding:0 56px}}

.band{padding:var(--sect) 0;border-top:1px solid var(--line)}
.band-tight{padding:calc(var(--sect) * .72) 0}
.band-alt{background:var(--bg-1)}
.band-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:36px;flex-wrap:wrap;
}
.band-head h2{
  font-size:clamp(1.5rem,2.4vw,2rem);
  position:relative;padding-left:16px;
}
.band-head h2::before{
  content:"";position:absolute;left:0;top:.14em;height:1em;width:3px;
  background:var(--brand);border-radius:2px;
}
.band-sub{margin-top:10px;color:var(--ink-2);font-size:.9375rem;letter-spacing:.01em}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--bg-1);border-bottom:1px solid var(--line);height:34px}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:100%;gap:16px}
.tb-left{display:flex;align-items:center;gap:14px;font-size:.75rem;color:var(--ink-2);letter-spacing:.06em;min-width:0}
.tb-domain{color:var(--ink-1);font-weight:600}
.tb-note{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tb-right{display:flex;align-items:center;gap:18px;font-size:.75rem}
.tb-right a{
  color:var(--ink-2);position:relative;padding-bottom:2px;
  transition:color var(--dur) var(--ease);
}
.tb-right a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:3px;
  background:var(--brand);transition:width .2s var(--ease);
}
.tb-right a:hover{color:var(--brand)}
.tb-right a:hover::after{width:100%}
@media (max-width:767px){
  .topbar{height:28px}
  .tb-note,.tb-right a:nth-child(2),.tb-right a:nth-child(3){display:none}
}

/* ============ 主导航 ============ */
.sitehead{
  position:sticky;top:0;z-index:70;
  background:rgba(10,15,13,.94);
  border-bottom:1px solid transparent;
  transition:background var(--dur-slow) var(--ease),border-color var(--dur-slow) var(--ease);
}
.sitehead.is-scrolled{
  background:rgba(10,15,13,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.head-inner{display:flex;align-items:center;gap:22px;height:84px;transition:height .3s var(--ease)}
.sitehead.is-scrolled .head-inner{height:64px}

.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  display:grid;place-items:center;width:38px;height:38px;
  border-radius:12px;background:var(--brand);color:var(--brand-ink);
  font-weight:800;font-size:.875rem;letter-spacing:.02em;
  transition:box-shadow var(--dur) var(--ease);
}
.brand:hover .brand-mark{box-shadow:0 0 0 4px rgba(200,240,75,.16)}
.brand-text{display:flex;flex-direction:column;font-weight:700;font-size:1.05rem;line-height:1.15;color:var(--ink-0)}
.brand-text small{font-size:.625rem;letter-spacing:.18em;color:var(--ink-2);font-weight:600;margin-top:3px}

.navmenu{display:none;align-items:center;gap:2px;margin-left:auto}
@media (min-width:992px){.navmenu{display:flex}}
.navmenu a{
  position:relative;padding:10px 14px;font-size:.9375rem;color:var(--ink-1);
  transition:color var(--dur) var(--ease);
}
.navmenu a::after{
  content:"";position:absolute;left:50%;bottom:2px;height:2px;width:0;
  background:var(--brand);border-radius:2px;transform:translateX(-50%);
  transition:width .2s var(--ease);
}
.navmenu a:hover{color:var(--ink-0)}
.navmenu a:hover::after{width:calc(100% - 28px)}
.navmenu a.active{color:var(--ink-0)}
.navmenu a.active::after{width:calc(100% - 28px)}

.head-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
@media (min-width:992px){.head-actions{margin-left:0}}
.icon-btn{
  display:grid;place-items:center;width:38px;height:38px;
  background:transparent;border:1px solid var(--line-strong);border-radius:12px;
  color:var(--ink-1);cursor:pointer;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:rgba(200,240,75,.06)}
.head-cta{display:none}
@media (min-width:768px){.head-cta{display:inline-flex}}
@media (max-width:575px){.head-actions{gap:8px}}

/* ============ 按钮体系 ============ */
.btn-brand,.btn-ghost,.btn-text{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:.9375rem;cursor:pointer;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),
             border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),
             color var(--dur) var(--ease);
}
.btn-brand{
  background:var(--brand);color:var(--brand-ink);
  border:1px solid var(--brand);border-radius:var(--r-md);
  padding:13px 24px;
}
.btn-brand:hover{background:#d3f566;border-color:#d3f566;box-shadow:0 10px 26px rgba(200,240,75,.22);transform:translateY(-2px)}
.btn-brand:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;color:var(--ink-0);
  border:1px solid var(--line-strong);border-radius:var(--r-md);
  padding:12px 22px;
}
.btn-ghost:hover{border-color:var(--brand);background:rgba(200,240,75,.08);color:var(--brand)}
.btn-text{
  background:none;border:0;padding:6px 0;color:var(--brand);
  font-size:.9375rem;
}
.btn-text i{font-style:normal;display:inline-block;transition:transform var(--dur) var(--ease)}
.btn-text:hover i{transform:translateX(4px)}
.btn-pill{border-radius:var(--r-pill);padding:10px 20px}

/* ============ 徽章与标签 ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:.75rem;letter-spacing:.04em;line-height:1.7;
  border:1px solid var(--line-strong);color:var(--ink-1);
  background:transparent;white-space:nowrap;
}
.tag-green{color:var(--accent-3);border-color:rgba(31,191,117,.4)}
.tag-key{background:rgba(200,240,75,.10);color:var(--brand);border-color:transparent}
.tag-hot{background:var(--accent);color:#fff;border-color:var(--accent)}

/* ============ 分类 Hero（分栏式） ============ */
.cat-hero{
  position:relative;
  padding:48px 0 40px;
  background:
    radial-gradient(1100px 460px at 12% -10%,rgba(200,240,75,.09),transparent 62%),
    radial-gradient(760px 380px at 92% 8%,rgba(255,90,43,.07),transparent 66%),
    var(--bg-0);
  border-bottom:1px solid var(--line);
}
.cat-hero-grid{
  display:grid;grid-template-columns:1fr;gap:32px;align-items:center;
}
@media (min-width:992px){
  .cat-hero{padding:56px 0}
  .cat-hero-grid{grid-template-columns:1.05fr .95fr;gap:48px;min-height:400px}
}
.crumbs{
  display:flex;align-items:center;gap:8px;font-size:.8125rem;color:var(--ink-2);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:18px;
}
.crumbs a{color:var(--ink-2);transition:color var(--dur) var(--ease)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:rgba(244,241,234,.25)}
.crumbs .now{color:var(--ink-1)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.75rem;letter-spacing:.14em;color:var(--brand);
  text-transform:uppercase;margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand)}
.cat-hero h1{
  font-size:clamp(2rem,4.2vw,3.25rem);
  line-height:1.15;letter-spacing:-.03em;margin-bottom:16px;
}
.cat-hero h1 em{font-style:normal;color:var(--brand)}
.lede{
  font-size:clamp(1.0625rem,1.4vw,1.185rem);
  line-height:1.7;color:var(--ink-1);max-width:36em;
}
.statline{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  margin-top:22px;font-size:.8125rem;color:var(--ink-2);
  letter-spacing:.04em;font-variant-numeric:tabular-nums;
}
.statline b{color:var(--ink-0);font-weight:700;margin-right:4px}
.statline .dot{color:rgba(244,241,234,.22)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.cat-hero-media{
  border-radius:var(--r-lg);overflow:hidden;background:var(--bg-2);
  border:1px solid var(--line-strong);box-shadow:var(--shadow-1);
  aspect-ratio:16/9;
}
.cat-hero-media img{width:100%;height:100%;object-fit:cover}

/* ============ 上手路径 ============ */
.steps{
  display:grid;gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  grid-template-columns:1fr;
}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1200px){.steps{grid-template-columns:repeat(4,1fr)}}
.steps li{
  background:var(--bg-1);padding:28px 24px 30px;position:relative;
  transition:background var(--dur) var(--ease);
}
.steps li:hover{background:#141d18}
.step-no{
  display:block;font-size:2rem;font-weight:800;line-height:1;
  color:transparent;-webkit-text-stroke:1px var(--line-strong);
  margin-bottom:16px;font-variant-numeric:tabular-nums;
}
.steps h3{font-size:1.0625rem;margin-bottom:8px}
.steps p{font-size:.875rem;color:var(--ink-1);line-height:1.75}

/* ============ 横向列表行 ============ */
.rowlist{border-top:1px solid var(--line)}
.row-item{
  position:relative;display:grid;grid-template-columns:1fr;gap:16px;
  padding:24px 16px 26px 18px;border-bottom:1px solid var(--line);
  transition:background var(--dur) var(--ease);
}
.row-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:0;
  background:var(--brand);transition:width .2s var(--ease);
}
.row-item:hover{background:rgba(244,241,234,.03)}
.row-item:hover::before{width:2px}
.row-item:hover .row-title a{color:var(--brand)}
.row-item:hover .row-more i{transform:translateX(4px)}
@media (min-width:768px){
  .row-item{
    grid-template-columns:224px minmax(0,1fr) auto;
    gap:26px;align-items:center;padding:26px 20px 26px 20px;
  }
}
@media (min-width:1200px){
  .row-item{grid-template-columns:240px minmax(0,1fr) auto;padding:26px 24px}
}
.row-media{
  display:block;border-radius:var(--r-md);overflow:hidden;
  background:var(--bg-2);border:1px solid var(--line);
  aspect-ratio:16/9;
}
.row-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--dur-slow) var(--ease)}
.row-item:hover .row-media img{transform:scale(1.05)}
@media (min-width:768px){.row-media{aspect-ratio:16/10;max-width:240px}}
.row-body{min-width:0}
.row-title{font-size:clamp(1.0625rem,1.35vw,1.25rem);margin:12px 0 8px}
.row-title a{transition:color var(--dur) var(--ease)}
.row-desc{
  color:var(--ink-1);font-size:.9375rem;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.row-meta{
  display:flex;align-items:center;gap:8px;margin-top:14px;
  font-size:.75rem;color:var(--ink-2);letter-spacing:.06em;
  font-variant-numeric:tabular-nums;
}
.row-more{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.875rem;color:var(--ink-1);white-space:nowrap;
  transition:color var(--dur) var(--ease);align-self:flex-start;
}
@media (min-width:768px){.row-more{align-self:center}}
.row-more i{font-style:normal;display:inline-block;transition:transform var(--dur) var(--ease)}
.row-item:hover .row-more{color:var(--brand)}

/* ============ 横滑轨道 ============ */
.track-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:28px}
.track-btns{display:none;gap:10px}
@media (min-width:992px){.track-btns{display:flex}}
.round{border-radius:50%;width:44px;height:44px}
.track{
  display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 20px 12px;margin:0 -20px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.track::-webkit-scrollbar{display:none}
@media (min-width:992px){.track{padding:4px 40px 12px;margin:0 -40px}}
@media (min-width:1400px){.track{padding:4px 56px 12px;margin:0 -56px}}
.track-card{
  flex:0 0 260px;scroll-snap-align:start;
  background:var(--bg-2);border:1px solid var(--line-strong);border-radius:var(--r-lg);
  overflow:hidden;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
@media (min-width:992px){.track-card{flex:0 0 300px}}
.track-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-2);border-color:var(--glow)}
.track-thumb{aspect-ratio:16/9;background:var(--bg-2);overflow:hidden}
.track-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--dur-slow) var(--ease)}
.track-card:hover .track-thumb img{transform:scale(1.05)}
.track-body{padding:18px 18px 20px}
.track-body h3{
  font-size:1rem;line-height:1.45;margin:10px 0 12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.track-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:.75rem;color:var(--ink-2);letter-spacing:.05em}
.track-foot span:last-child{color:var(--brand);font-size:.8125rem}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.accordion-item:first-child{border-top:1px solid var(--line)}
.accordion-button{
  background:transparent!important;color:var(--ink-0)!important;
  font-size:1.0625rem;font-weight:600;line-height:1.55;
  padding:20px 46px 20px 0;box-shadow:none!important;
  border-radius:0!important;position:relative;
  transition:color var(--dur) var(--ease);
}
.accordion-button:hover{color:var(--brand)!important}
.accordion-button::after{display:none}
.plus{
  position:absolute;right:4px;top:50%;width:20px;height:20px;
  transform:translateY(-50%);transition:transform var(--dur) var(--ease);
}
.plus::before,.plus::after{
  content:"";position:absolute;background:var(--ink-1);border-radius:2px;
  transition:background var(--dur) var(--ease);
}
.plus::before{left:0;top:9px;width:20px;height:1.5px}
.plus::after{top:0;left:9px;height:20px;width:1.5px}
.accordion-button:not(.collapsed){color:var(--ink-0)!important}
.accordion-button:not(.collapsed) .plus{transform:translateY(-50%) rotate(45deg)}
.accordion-button:not(.collapsed) .plus::before,
.accordion-button:not(.collapsed) .plus::after{background:var(--brand)}
.accordion-body{padding:0 44px 24px 0;font-size:.9375rem;line-height:1.8;color:var(--ink-1)}
.accordion-body p+p{margin-top:12px}

/* ============ CTA 窄条 ============ */
.cta-strip{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  max-width:860px;padding:24px 28px;
  background:var(--bg-1);border:1px solid var(--line-strong);border-radius:var(--r-lg);
}
.cta-strip p{font-size:1rem;color:var(--ink-0);font-weight:600}
.cta-strip span{display:block;font-size:.875rem;color:var(--ink-2);font-weight:400;margin-top:6px}

/* ============ 底部三栏静态信息 ============ */
.info-cols{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){.info-cols{grid-template-columns:repeat(3,1fr);gap:28px}}
.info-cols h4{
  font-size:.8125rem;letter-spacing:.1em;color:var(--ink-2);
  font-weight:600;margin-bottom:16px;
}
.info-cols li+li{margin-top:10px}
.info-cols a{
  font-size:.9375rem;color:var(--ink-1);
  border-bottom:1px solid transparent;transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.info-cols a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.info-cols .plain{font-size:.9375rem;color:var(--ink-2)}

/* ============ 表单 ============ */
.form-label-x{display:block;font-size:.8125rem;color:var(--ink-1);margin-bottom:8px}
.input-x{
  width:100%;height:48px;padding:0 14px;
  background:var(--bg-2);border:1px solid var(--line-strong);
  border-radius:var(--r-sm);color:var(--ink-0);font-size:.9375rem;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.input-x::placeholder{color:var(--ink-2)}
.input-x:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(200,240,75,.15)}
.input-x:disabled{opacity:.5;cursor:not-allowed}

/* ============ 页脚 ============ */
.sitefoot{background:var(--bg-1);border-top:1px solid var(--line);padding:56px 0 24px;margin-top:0}
.footgrid{display:grid;grid-template-columns:1fr;gap:36px}
@media (min-width:768px){.footgrid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1200px){.footgrid{grid-template-columns:1.4fr 1fr 1fr 1fr);gap:32px}}
.foot-brand p{color:var(--ink-2);font-size:.9375rem;line-height:1.75;margin-top:18px;max-width:34em}
.foot-social{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}
.foot-social a{
  padding:6px 14px;border:1px solid var(--line-strong);border-radius:var(--r-pill);
  font-size:.8125rem;color:var(--ink-1);
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.foot-social a:hover{border-color:var(--brand);color:var(--brand);background:rgba(200,240,75,.07)}
.foot-col h4{font-size:.8125rem;letter-spacing:.1em;color:var(--ink-2);font-weight:600;margin-bottom:16px}
.foot-col li+li{margin-top:10px}
.foot-col a{font-size:.9375rem;color:var(--ink-1);transition:color var(--dur) var(--ease)}
.foot-col a:hover{color:var(--brand)}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  font-size:.75rem;color:var(--ink-2);letter-spacing:.04em;
}

/* ============ 空态 ============ */
.empty{
  display:grid;place-items:center;gap:16px;text-align:center;
  padding:48px 24px;border:1px dashed var(--line-strong);border-radius:var(--r-md);
  color:var(--ink-2);
}
.empty svg{width:32px;height:32px;stroke:var(--accent-3);fill:none;stroke-width:1.4}
.empty p{font-size:.9375rem;color:var(--ink-1)}

/* ============ offcanvas 移动导航 ============ */
.nav-drawer{background:var(--bg-1)!important;border-left:1px solid var(--line)!important;width:84vw!important;max-width:340px}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:20px 22px}
.nav-drawer .offcanvas-body{padding:12px 22px 32px}
.drawer-link{
  display:flex;align-items:center;min-height:56px;padding:0 4px;
  border-bottom:1px solid var(--line);font-size:1rem;color:var(--ink-1);
  transition:color var(--dur) var(--ease),padding-left var(--dur) var(--ease);
}
.drawer-link:hover{color:var(--brand);padding-left:10px}
.drawer-link.active{color:var(--ink-0)}
.drawer-link.active::before{content:"";width:3px;height:16px;background:var(--brand);margin-right:10px;border-radius:2px}
.drawer-cta{width:100%;margin-top:22px}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity var(--dur-slow) var(--ease),transform var(--dur-slow) var(--ease)}
.reveal.in-view{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
  .row-item:hover .row-media img,.track-card:hover .track-thumb img{transform:none}
  .track-card:hover{transform:none}
}

/* ============ Bootstrap 视觉覆盖 ============ */
.btn{--bs-btn-focus-box-shadow:0 0 0 3px rgba(200,240,75,.25)}
.accordion{--bs-accordion-bg:transparent;--bs-accordion-border-width:0;--bs-accordion-border-radius:0}
.offcanvas{--bs-offcanvas-color:var(--ink-0)}

/* ============ 断点细节 ============ */
@media (max-width:575px){
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%}
  .cta-strip{padding:20px}
  .cta-strip .btn-brand{width:100%}
  .cat-hero{padding:36px 0 32px}
}
@media (max-width:767px){
  .band-head{margin-bottom:26px}
  .row-more{align-self:flex-start}
}