/* roulang page: index */
:root,
[data-bs-theme="dark"]{
  --bg-0:#06110F;
  --bg-1:#0A1A18;
  --bg-2:#0F2320;
  --brand:#12E29A;
  --brand-hi:#0FC98A;
  --brand-soft:rgba(18,226,154,.14);
  --accent:#FFB43C;
  --info:#7DE2FF;
  --text-1:#EAF5F2;
  --text-2:#A8BFBA;
  --text-3:#6F8783;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);

  --r-card:18px;
  --r-img:14px;
  --r-pill:999px;
  --r-input:12px;
  --r-sm:10px;

  --sp-4:4px; --sp-8:8px; --sp-12:12px; --sp-16:16px; --sp-24:24px;
  --sp-32:32px; --sp-48:48px; --sp-64:64px; --sp-96:96px; --sp-120:120px;

  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9);
  --shadow-hover:0 12px 40px -18px rgba(18,226,154,.32);
  --shadow-btn:0 0 24px -6px rgba(18,226,154,.7);

  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",sans-serif;

  --bs-primary:#12E29A;
  --bs-primary-rgb:18,226,154;
  --bs-body-bg:#06110F;
  --bs-body-color:#EAF5F2;
  --bs-secondary-color:#A8BFBA;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:18px;
  --bs-border-radius-lg:18px;
  --bs-border-radius-sm:12px;
  --bs-link-color:#12E29A;
  --bs-link-hover-color:#0FC98A;
  --bs-emphasis-color:#EAF5F2;
  --bs-body-font-family:var(--font-cn);
  --bs-font-sans-serif:var(--font-cn);
  --bs-heading-color:#EAF5F2;
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth}

body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:1rem;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

body::before{
  content:"";
  position:fixed;
  inset:auto auto -180px -180px;
  width:520px;height:520px;
  background:radial-gradient(circle,rgba(18,226,154,.10),transparent 68%);
  pointer-events:none;
  z-index:0;
}

img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-hi)}
button{font-family:inherit}
p{margin:0 0 1em;color:var(--text-2);max-width:42em}
h1,h2,h3,h4,h5{margin:0;color:var(--text-1);line-height:1.32}
ul,ol{margin:0;padding:0;list-style:none}

:focus-visible{
  outline:2px solid rgba(18,226,154,.6);
  outline-offset:3px;
  border-radius:var(--r-sm);
}

.container{width:100%;padding-left:16px;padding-right:16px;margin-inline:auto}
@media (min-width:576px){.container{max-width:560px}}
@media (min-width:768px){.container{max-width:720px}}
@media (min-width:992px){.container{max-width:960px}}
@media (min-width:1200px){.container{max-width:1200px}}
@media (min-width:1400px){.container{max-width:1200px}}

/* ============ 通用排版 ============ */
.h1,.h2,.h3{letter-spacing:-.01em}
.h1{font-size:clamp(2.2rem,4.2vw,3.4rem);font-weight:800;letter-spacing:-.02em}
.h2{font-size:clamp(1.55rem,2.4vw,2.1rem);font-weight:700}
.h3{font-size:1.25rem;font-weight:600}
.h4{font-size:1.05rem;font-weight:600}

.lead-text{color:var(--text-2);font-size:1.02rem;line-height:1.85;max-width:42em}

.kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.75rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--brand);
  font-weight:600;
  margin-bottom:16px;
}
.kicker i{
  width:7px;height:7px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 10px 2px rgba(18,226,154,.8);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:.45;transform:scale(.82)}
}

.meta-line{
  font-size:.815rem;
  letter-spacing:.04em;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
}
.meta-line .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3);display:inline-block}

.section{padding:96px 0;position:relative;z-index:1}
.section-tight{padding:72px 0}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:32px;
}
.section-head p{margin:8px 0 0;color:var(--text-2);max-width:44em}
.band{background:linear-gradient(180deg,rgba(15,35,32,.75),rgba(10,26,24,.35));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--r-pill);
  font-weight:600;
  font-size:.95rem;
  padding:12px 22px;
  border:1px solid transparent;
  transition:all .22s ease;
  text-decoration:none;
  line-height:1.4;
  min-height:44px;
}
.btn-brand{
  background:linear-gradient(135deg,#12E29A,#7BE8C0);
  color:#04140F;
  font-weight:700;
  box-shadow:var(--shadow-btn);
}
.btn-brand:hover{
  color:#04140F;
  transform:translateY(-1px);
  filter:brightness(1.04);
  box-shadow:0 0 32px -4px rgba(18,226,154,.85);
}
.btn-brand:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,.18);
  color:var(--text-1);
}
.btn-ghost:hover{
  border-color:rgba(18,226,154,.6);
  background:var(--brand-soft);
  color:var(--text-1);
}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:9px 16px;font-size:.875rem;min-height:40px}
.btn-text{
  background:none;
  border:none;
  padding:6px 2px;
  color:var(--brand);
  font-size:.925rem;
  font-weight:600;
  text-decoration:underline;
  text-underline-offset:4px;
  cursor:pointer;
}
.btn-text:hover{color:var(--brand-hi);text-decoration:none}
.btn.is-copied{
  background:linear-gradient(135deg,#FFB43C,#ffd08a);
  color:#20160a;
  box-shadow:0 0 24px -8px rgba(255,180,60,.8);
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(6,17,15,.72);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:24px;
  height:68px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:28px;height:28px;
  border-radius:9px;
  background:linear-gradient(135deg,#12E29A,#7BE8C0);
  color:#04140F;
  font-weight:800;
  font-size:.95rem;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 18px -4px rgba(18,226,154,.8);
}
.brand-text{
  font-size:1.05rem;
  font-weight:700;
  color:var(--text-1);
  letter-spacing:-.01em;
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:8px;
  flex:1 1 auto;
}
.nav-link{
  position:relative;
  font-size:.925rem;
  color:var(--text-2);
  padding:10px 12px;
  border-radius:var(--r-sm);
  white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:4px;
  height:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .24s ease;
  border-radius:2px;
}
.nav-link:hover{color:var(--brand);background:rgba(255,255,255,.03)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand)}
.nav-link.active::after{transform:scaleX(1)}

.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto}

.cmd-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:240px;
  padding:0 12px;
  height:40px;
  border-radius:var(--r-pill);
  background:var(--glass);
  border:1px solid var(--line);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.cmd-search:focus-within{
  border-color:rgba(18,226,154,.6);
  box-shadow:0 0 0 4px rgba(18,226,154,.12);
}
.cmd-search svg{flex-shrink:0;color:var(--text-3)}
.cmd-search input{
  flex:1;
  min-width:0;
  background:none;
  border:none;
  outline:none;
  color:var(--text-1);
  font-size:.9rem;
  padding:0;
}
.cmd-search input::placeholder{color:var(--text-3)}
.cmd-search .kbd{
  font-size:.7rem;
  color:var(--text-3);
  border:1px solid var(--line);
  border-radius:6px;
  padding:1px 6px;
  letter-spacing:.04em;
  white-space:nowrap;
}
.icon-btn{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-pill);
  background:transparent;
  border:1px solid var(--line);
  color:var(--text-2);
  cursor:pointer;
  transition:all .2s ease;
}
.icon-btn:hover{border-color:rgba(18,226,154,.5);color:var(--brand);background:var(--brand-soft)}
.icon-btn.is-active{color:var(--brand);border-color:rgba(18,226,154,.5);background:var(--brand-soft)}
.hamburger{
  width:44px;height:44px;
  border-radius:var(--r-sm);
  background:transparent;
  border:1px solid var(--line);
  color:var(--text-1);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;
}
.hamburger:hover{border-color:rgba(18,226,154,.5);color:var(--brand)}

.nav-drawer{
  background:var(--bg-1) !important;
  color:var(--text-1);
  border-left:1px solid var(--line) !important;
  width:320px !important;
}
.nav-drawer .offcanvas-header{
  border-bottom:1px solid var(--line);
  padding:16px 20px;
}
.nav-drawer .brand-text{font-size:1rem}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin:20px 0}
.drawer-links a{
  display:flex;
  align-items:center;
  min-height:46px;
  padding:0 12px;
  border-radius:var(--r-sm);
  color:var(--text-2);
  font-size:.95rem;
}
.drawer-links a:hover{background:var(--brand-soft);color:var(--brand)}
.drawer-links a.active{color:var(--brand);background:var(--brand-soft)}
.nav-drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.6)}
.nav-drawer .cmd-search{width:100%;margin-bottom:16px}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:88px 0 96px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  top:-140px;right:-120px;
  width:640px;height:640px;
  background:radial-gradient(circle,rgba(18,226,154,.12),transparent 66%);
  pointer-events:none;
}
.hero-sub{
  font-size:1.06rem;
  color:var(--text-2);
  margin:20px 0 32px;
  max-width:34em;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:40px}
.hero-metrics{
  display:flex;
  flex-wrap:wrap;
  gap:32px;
  padding-top:28px;
  border-top:1px solid var(--line);
}
.hero-metrics li{display:flex;flex-direction:column;gap:2px}
.hero-metrics strong{
  font-size:1.6rem;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  color:var(--text-1);
  letter-spacing:-.02em;
  line-height:1.2;
}
.hero-metrics span{font-size:.815rem;color:var(--text-3);letter-spacing:.04em}

.hero-visual{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.hero-visual img{
  width:100%;
  height:auto;
  border-radius:0;
  opacity:.9;
  object-fit:cover;
}
.hero-visual::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(160deg,rgba(6,17,15,.12),rgba(6,17,15,.72));
  pointer-events:none;
}
.hero-visual .grid-overlay{
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none;
  z-index:2;
}
.hero-visual .corner{
  position:absolute;
  width:18px;height:18px;
  border:2px solid rgba(18,226,154,.7);
  z-index:3;
}
.hero-visual .tl{top:14px;left:14px;border-right:none;border-bottom:none}
.hero-visual .tr{top:14px;right:14px;border-left:none;border-bottom:none}
.hero-visual .bl{bottom:14px;left:14px;border-right:none;border-top:none}
.hero-visual .br{bottom:14px;right:14px;border-left:none;border-top:none}
.hero-visual .visual-tag{
  position:absolute;
  left:20px;bottom:20px;
  z-index:4;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:var(--r-pill);
  background:rgba(6,17,15,.72);
  border:1px solid var(--line);
  font-size:.815rem;
  color:var(--text-2);
  letter-spacing:.04em;
  backdrop-filter:blur(10px);
}
.hero-visual .visual-tag b{color:var(--brand);font-weight:700}

/* ============ 玻璃卡通用 ============ */
.glass-card{
  position:relative;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.glass-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,226,154,.5),transparent);
  z-index:3;
}
.glass-card::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none;
  z-index:0;
}
.glass-card > *{position:relative;z-index:1}
.glass-card:hover{
  transform:translateY(-4px);
  border-color:rgba(18,226,154,.35);
  box-shadow:var(--shadow-card),var(--shadow-hover);
}
.glass-card:hover .card-cover img{transform:scale(1.04)}

/* ============ 专题合集卡 ============ */
.collection-card{display:flex;flex-direction:column;height:100%;text-decoration:none}
.card-cover{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-card) var(--r-card) 0 0;
  aspect-ratio:16/10;
  background:var(--bg-2);
}
.card-cover img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
  opacity:.86;
}
.card-cover::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(6,17,15,.15),rgba(6,17,15,.82));
}
.card-index{
  position:absolute;
  left:18px;bottom:8px;
  z-index:2;
  font-size:2.4rem;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.04em;
  color:rgba(255,255,255,.5);
  line-height:1;
}
.card-badge{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  border-radius:var(--r-pill);
  border:1px solid rgba(18,226,154,.35);
  background:var(--brand-soft);
  color:var(--brand);
  font-size:.75rem;
  letter-spacing:.04em;
  white-space:nowrap;
}
.card-badge.accent{
  border-color:rgba(255,180,60,.4);
  background:rgba(255,180,60,.12);
  color:var(--accent);
}
.card-cover .card-badge{
  position:absolute;
  top:14px;right:14px;
  z-index:2;
  background:rgba(6,17,15,.78);
  backdrop-filter:blur(10px);
}
.collection-body{
  padding:22px;
  display:flex;
  flex-direction:column;
  gap:12px;
  flex:1;
}
.collection-body h3{
  font-size:1.25rem;
  font-weight:600;
  color:var(--text-1);
}
.collection-body .desc{
  font-size:.925rem;
  color:var(--text-2);
  margin:0;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.collection-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}

/* ============ 流程步骤 ============ */
.step-card{
  padding:24px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  height:100%;
  transition:transform .28s ease,border-color .28s ease;
}
.step-card:hover{transform:translateY(-4px);border-color:rgba(18,226,154,.35)}
.step-no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border-radius:var(--r-sm);
  background:var(--brand-soft);
  border:1px solid rgba(18,226,154,.3);
  color:var(--brand);
  font-weight:700;
  font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.step-card h3{font-size:1.1rem;font-weight:600;margin-bottom:8px}
.step-card p{font-size:.925rem;margin:0}

/* ============ 最新信息卡片 ============ */
.post-card{
  display:flex;
  flex-direction:column;
  height:100%;
  padding:24px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  text-decoration:none;
  position:relative;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
  overflow:hidden;
}
.post-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,226,154,.5),transparent);
}
.post-card:hover{
  transform:translateY(-4px);
  border-color:rgba(18,226,154,.35);
  box-shadow:var(--shadow-card),var(--shadow-hover);
}
.post-card h3{
  font-size:1.1rem;
  font-weight:600;
  color:var(--text-1);
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-card .excerpt{
  font-size:.925rem;
  color:var(--text-2);
  margin:0 0 18px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-card .post-foot{
  margin-top:auto;
  padding-top:16px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.post-card .arrow{
  color:var(--brand);
  display:inline-flex;
  transition:transform .24s ease;
}
.post-card:hover .arrow{transform:translateX(4px)}

.empty-state{
  padding:56px 24px;
  text-align:center;
  border-radius:var(--r-card);
  border:1px dashed rgba(255,255,255,.14);
  background:var(--glass);
}
.empty-state svg{color:var(--brand);margin-bottom:16px}
.empty-state h3{font-size:1.15rem;margin-bottom:8px}
.empty-state p{margin:0 auto 20px;max-width:32em}

/* ============ 精选条目列表 ============ */
.pick-list{border-top:1px solid var(--line)}
.pick-item{
  display:flex;
  align-items:center;
  gap:20px;
  padding:20px 16px;
  border-bottom:1px solid var(--line);
  text-decoration:none;
  transition:background .22s ease,padding-left .22s ease;
}
.pick-item:hover{background:rgba(18,226,154,.06);padding-left:22px}
.pick-no{
  font-variant-numeric:tabular-nums;
  font-size:.9rem;
  font-weight:700;
  color:var(--accent);
  min-width:34px;
  letter-spacing:.04em;
}
.pick-main{flex:1 1 auto;min-width:0}
.pick-main h3{
  font-size:1.05rem;
  font-weight:600;
  margin-bottom:4px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.pick-main p{
  margin:0;
  font-size:.9rem;
  color:var(--text-2);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  max-width:100%;
}
.pick-time{
  font-size:.815rem;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
  white-space:nowrap;
}

/* ============ 相关推荐 / 分类入口 ============ */
.mini-card{
  display:flex;
  gap:16px;
  padding:16px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  text-decoration:none;
  height:100%;
  transition:transform .28s ease,border-color .28s ease;
}
.mini-card:hover{transform:translateY(-4px);border-color:rgba(18,226,154,.35)}
.mini-card img{
  width:84px;height:84px;
  border-radius:var(--r-img);
  object-fit:cover;
  flex-shrink:0;
}
.mini-card h3{font-size:1rem;font-weight:600;margin-bottom:6px}
.mini-card p{font-size:.85rem;color:var(--text-2);margin:0 0 8px}
.mini-card .mini-foot{font-size:.78rem;color:var(--text-3);letter-spacing:.04em}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.tag-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  min-height:40px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  color:var(--text-2);
  font-size:.875rem;
  transition:all .22s ease;
}
.tag-pill:hover{border-color:rgba(18,226,154,.5);color:var(--brand);background:var(--brand-soft)}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;
  border-radius:var(--r-card);
  padding:32px;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,226,154,.5),transparent);
}
.cta-band h2{font-size:1.35rem;font-weight:700;margin-bottom:6px}
.cta-band p{margin:0;font-size:.95rem;max-width:38em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ FAQ ============ */
.faq-accordion .accordion-item{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-img) !important;
  margin-bottom:12px;
  overflow:hidden;
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.faq-accordion .accordion-item:last-child{margin-bottom:0}
.faq-accordion .accordion-button{
  background:transparent;
  color:var(--text-1);
  font-size:1.05rem;
  font-weight:600;
  padding:20px 22px;
  box-shadow:none;
  border:none;
  position:relative;
  transition:color .2s ease,background .2s ease;
}
.faq-accordion .accordion-button::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 10px 1px rgba(18,226,154,.7);
  opacity:0;
  transition:opacity .24s ease;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--brand);
  background:rgba(18,226,154,.05);
}
.faq-accordion .accordion-button:not(.collapsed)::before{opacity:1}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:2px solid rgba(18,226,154,.5);outline-offset:-2px}
.faq-accordion .accordion-button::after{
  background-image:none;
  content:"";
  width:10px;height:10px;
  border-right:2px solid var(--text-3);
  border-bottom:2px solid var(--text-3);
  transform:rotate(45deg);
  transition:transform .28s ease,border-color .24s ease;
  margin-left:auto;
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  transform:rotate(-135deg);
  border-color:var(--brand);
}
.faq-accordion .accordion-body{
  padding:0 22px 22px;
  font-size:.95rem;
  color:var(--text-2);
  line-height:1.85;
}
.faq-accordion .accordion-body p{margin:0 0 10px}
.faq-accordion .accordion-body p:last-child{margin-bottom:0}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  margin-top:96px;
  padding:64px 0 0;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  left:-180px;bottom:-200px;
  width:520px;height:520px;
  background:radial-gradient(circle,rgba(18,226,154,.11),transparent 68%);
  pointer-events:none;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:32px;
  position:relative;
  z-index:1;
}
.footer-col h4{
  font-size:.95rem;
  font-weight:700;
  color:var(--text-1);
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col p{font-size:.9rem;color:var(--text-2);max-width:30em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{
  font-size:.9rem;
  color:var(--text-2);
  text-decoration:none;
  transition:color .2s ease;
}
.footer-links a:hover{color:var(--brand)}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-bottom{
  margin-top:48px;
  padding:20px 0 28px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:.815rem;
  color:var(--text-3);
  position:relative;
  z-index:1;
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--brand)}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-links{margin-left:0;gap:0}
  .nav-link{padding:10px 9px;font-size:.9rem}
  .cmd-search{width:200px}
}
@media (max-width:991.98px){
  .section{padding:72px 0}
  .hero{padding:56px 0 72px}
  .hero-cta .btn{flex:1 1 auto}
  .hero-metrics{gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .site-footer{margin-top:72px;padding-top:56px}
}
@media (max-width:767.98px){
  .section{padding:56px 0}
  .hero{padding:48px 0 56px;text-align:center}
  .hero .kicker{justify-content:center}
  .hero-sub{margin-inline:auto}
  .hero-cta{justify-content:center;flex-direction:column}
  .hero-cta .btn{width:100%}
  .hero-metrics{justify-content:center;gap:20px;text-align:center}
  .hero-metrics li{align-items:center}
  .section-head{margin-bottom:24px}
  .section-head .btn-text{align-self:flex-start}
  .cta-band{padding:24px;text-align:left}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .pick-item{flex-wrap:wrap;gap:8px 16px}
  .pick-main h3,.pick-main p{white-space:normal}
  .faq-accordion .accordion-button{font-size:1rem;padding:18px 18px 18px 22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:519.98px){
  .h1{font-size:1.9rem}
  .card-index{font-size:1.9rem}
  .hero-metrics{gap:16px}
  .hero-metrics strong{font-size:1.35rem}
  .mini-card{flex-direction:column}
  .mini-card img{width:100%;height:150px}
  .post-card{padding:20px}
  .cta-band{padding:20px}
}

/* roulang page: article */
:root{
  --bg-0:#06110F;
  --bg-1:#0A1A18;
  --bg-2:#0F2320;
  --brand:#12E29A;
  --brand-hi:#0FC98A;
  --brand-soft:rgba(18,226,154,.14);
  --accent:#FFB43C;
  --info:#7DE2FF;
  --text-1:#EAF5F2;
  --text-2:#A8BFBA;
  --text-3:#6F8783;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --r-card:18px;
  --r-img:14px;
  --r-pill:999px;
  --r-input:12px;
  --r-sm:10px;
  --sh-card:0 18px 40px -24px rgba(0,0,0,.9);
  --sh-hover:0 12px 40px -18px rgba(18,226,154,.32);
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-body-bg:var(--bg-0);
  --bs-body-color:var(--text-1);
  --bs-border-color:var(--line);
  --bs-primary:#12E29A;
  --bs-primary-rgb:18,226,154;
  --bs-border-radius:var(--r-img);
  --bs-border-radius-lg:var(--r-card);
  --bs-border-radius-sm:var(--r-sm);
  --bs-link-color:#12E29A;
  --bs-link-hover-color:#0FC98A;
  --bs-font-sans-serif:var(--font-cn);
  --bs-body-font-family:var(--font-cn);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg-0);color:var(--text-1);
  font-family:var(--font-cn);font-size:1rem;line-height:1.85;
  -webkit-font-smoothing:antialiased;position:relative;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(620px 420px at 90% -8%,rgba(18,226,154,.10),transparent 70%),
    radial-gradient(720px 520px at -12% 102%,rgba(18,226,154,.07),transparent 70%);
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s}
a:hover{color:var(--brand)}
button{font-family:inherit}
h1,h2,h3,h4,h5{margin:0;color:var(--text-1);letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
main{position:relative;z-index:1}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(6,17,15,.72);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;min-height:44px}
.brand-mark{
  width:28px;height:28px;border-radius:8px;flex-shrink:0;
  background:linear-gradient(135deg,#12E29A,#7BE8C0);
  color:#04140F;font-weight:800;font-size:.9rem;
  display:grid;place-items:center;
}
.brand-text{color:var(--text-1);font-weight:700;font-size:1.05rem;letter-spacing:-.01em;white-space:nowrap}
.brand:hover .brand-text{color:var(--brand)}
.nav-links{margin-left:8px;gap:2px;align-items:center}
.nav-link{
  position:relative;color:var(--text-2);font-size:.925rem;line-height:1.4;
  padding:10px 12px;border-radius:var(--r-sm);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .25s;
}
.nav-link:hover,.nav-link:focus-visible{color:var(--brand)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--text-1)}
.nav-actions{align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;width:250px;height:40px;
  padding:0 10px 0 14px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);
  transition:border-color .2s,box-shadow .2s;
}
.search-box i{color:var(--text-3);font-size:.8rem}
.search-box input{flex:1;min-width:0;background:transparent;border:0;outline:0;color:var(--text-1);font-size:.875rem}
.search-box input::placeholder{color:var(--text-3)}
.search-box:focus-within{border-color:rgba(18,226,154,.65);box-shadow:0 0 0 4px rgba(18,226,154,.12)}
.kbd{
  font-size:.7rem;color:var(--text-3);border:1px solid var(--line);
  border-radius:6px;padding:1px 6px;line-height:1.4;font-variant-numeric:tabular-nums;
}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-sm);display:grid;place-items:center;
  color:var(--text-2);border:1px solid var(--line);background:var(--glass);transition:.22s;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(18,226,154,.45);background:var(--brand-soft)}
.menu-toggle{
  width:44px;height:44px;margin-left:auto;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--glass);color:var(--text-1);
  display:grid;place-items:center;font-size:1.05rem;transition:.22s;
}
.menu-toggle:hover{color:var(--brand);border-color:rgba(18,226,154,.45)}

/* ---------- Buttons ---------- */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-pill);border:0;
  background:linear-gradient(135deg,#12E29A,#7BE8C0);color:#04140F;
  font-weight:700;font-size:.925rem;line-height:1.4;cursor:pointer;
  box-shadow:0 0 24px -6px rgba(18,226,154,.7);
  transition:transform .2s,box-shadow .2s,filter .2s,background .2s;
}
.btn-brand:hover{transform:translateY(-1px);filter:brightness(1.04);box-shadow:0 0 34px -4px rgba(18,226,154,.85);color:#04140F}
.btn-brand:active{transform:translateY(0)}
.btn-brand:focus-visible{outline:2px solid rgba(18,226,154,.6);outline-offset:2px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.18);background:transparent;color:var(--text-1);
  font-weight:600;font-size:.925rem;line-height:1.4;cursor:pointer;transition:.22s;
}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand)}
.btn-ghost:active{transform:translateY(1px)}
.btn-ghost:focus-visible{outline:2px solid rgba(18,226,154,.6);outline-offset:2px}
.btn-brand.is-copied,.btn-ghost.is-copied{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.btn-link-brand{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:.9rem;
  font-weight:600;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;
}
.btn-link-brand:hover{color:var(--brand-hi);text-decoration:none}

/* ---------- Badges ---------- */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);
  font-size:.75rem;font-weight:600;letter-spacing:.02em;line-height:1.6;
}
.badge-brand{background:var(--brand-soft);border:1px solid rgba(18,226,154,.3);color:var(--brand)}
.badge-accent{background:rgba(255,180,60,.12);border:1px solid rgba(255,180,60,.3);color:var(--accent)}

/* ---------- Breadcrumb ---------- */
.breadcrumb-bar{padding:20px 0 0;font-size:.85rem;color:var(--text-3)}
.breadcrumb-inner{max-width:860px;margin:0 auto}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--brand)}
.crumb-sep{color:var(--brand);font-size:.62rem}
.crumb-current{color:var(--text-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:46ch}

/* ---------- Article head ---------- */
.article-head{position:relative;overflow:hidden;padding:28px 0 40px;border-bottom:1px solid var(--line)}
.article-head::before{
  content:"";position:absolute;inset:0;opacity:.2;pointer-events:none;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 92%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 92%);
}
.article-head::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 320px at 88% 0%,rgba(18,226,154,.12),transparent 70%);
}
.article-head .container{position:relative;z-index:1}
.head-inner{max-width:860px;margin:0 auto}
.kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:.75rem;
  letter-spacing:.18em;color:var(--brand);text-transform:uppercase;font-weight:600;
}
.kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(18,226,154,.9)}
.article-title{
  font-size:clamp(1.75rem,3.6vw,2.6rem);font-weight:800;letter-spacing:-.02em;
  line-height:1.3;margin:14px 0 20px;max-width:24em;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;
  font-size:.815rem;color:var(--text-3);letter-spacing:.04em;
}
.meta-row .num{font-variant-numeric:tabular-nums}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.6}

/* ---------- Article body ---------- */
.article-body{padding:48px 0 40px}
.article-inner{max-width:860px;margin:0 auto}
.cms-content{color:var(--text-2);font-size:1rem;line-height:1.85}
.cms-content>*:first-child{margin-top:0}
.cms-content p{margin:0 0 1.1em;max-width:42em}
.cms-content h2{
  position:relative;color:var(--text-1);font-size:clamp(1.3rem,2.1vw,1.62rem);
  font-weight:700;line-height:1.45;margin:2em 0 .8em;padding-left:14px;
}
.cms-content h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:3px;
  background:var(--brand);box-shadow:0 0 12px rgba(18,226,154,.7);
}
.cms-content h3{color:var(--text-1);font-size:1.15rem;font-weight:600;margin:1.6em 0 .6em}
.cms-content h4{color:var(--text-1);font-size:1.02rem;font-weight:600;margin:1.3em 0 .5em}
.cms-content h5{color:var(--text-1);font-size:.95rem;font-weight:600;margin:1.1em 0 .4em}
.cms-content a{color:var(--brand);text-decoration:underline;text-underline-offset:4px}
.cms-content a:hover{color:var(--brand-hi);text-decoration:none}
.cms-content strong{color:var(--text-1)}
.cms-content ul{margin:0 0 1.1em;padding-left:0}
.cms-content ul>li{position:relative;padding-left:22px;margin-bottom:.55em}
.cms-content ul>li::before{
  content:"";position:absolute;left:3px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 8px rgba(18,226,154,.6);
}
.cms-content ol{margin:0 0 1.1em;padding-left:0;counter-reset:item}
.cms-content ol>li{position:relative;padding-left:30px;margin-bottom:.55em;counter-increment:item}
.cms-content ol>li::before{
  content:counter(item);position:absolute;left:0;top:.28em;
  width:20px;height:20px;border-radius:6px;display:grid;place-items:center;
  font-size:.72rem;font-weight:700;color:var(--brand);
  background:var(--brand-soft);border:1px solid rgba(18,226,154,.3);
  font-variant-numeric:tabular-nums;
}
.cms-content blockquote{
  margin:1.5em 0;padding:16px 20px;border-left:3px solid var(--brand);
  background:var(--glass);border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--text-2);
}
.cms-content blockquote p:last-child{margin-bottom:0}
.cms-content img{border-radius:var(--r-img);margin:1.6em auto;border:1px solid var(--line)}
.cms-content figure{margin:1.6em 0}
.cms-content figcaption,.cms-content .caption{
  text-align:center;font-size:.815rem;color:var(--text-3);margin-top:10px;letter-spacing:.03em;
}
.cms-content table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:.925rem;
  border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;
}
.cms-content th,.cms-content td{padding:12px 14px;border:1px solid var(--line);text-align:left;vertical-align:top}
.cms-content thead th{background:var(--brand-soft);color:var(--text-1);font-weight:600}
.cms-content tbody tr:nth-child(even){background:rgba(255,255,255,.022)}
.cms-content code{
  background:rgba(255,255,255,.06);padding:2px 6px;border-radius:6px;
  font-size:.9em;color:var(--brand);
}
.cms-content pre{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-img);
  padding:16px;overflow:auto;margin:1.4em 0;
}
.cms-content pre code{background:none;padding:0;color:var(--text-2)}
.cms-content hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}
.cms-content .table-wrap{overflow-x:auto}

/* ---------- Empty ---------- */
.empty-state{
  text-align:center;padding:56px 24px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);box-shadow:var(--sh-card);
}
.empty-state i{font-size:1.9rem;color:var(--brand);margin-bottom:16px;display:block}
.empty-state h2{font-size:1.25rem;margin-bottom:10px}
.empty-state p{color:var(--text-2);margin-bottom:22px}

/* ---------- Foot / tags / share ---------- */
.article-foot{border-top:1px solid var(--line);padding:28px 0 4px}
.foot-inner{max-width:860px;margin:0 auto}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
.tag-chip{
  padding:7px 14px;border-radius:var(--r-pill);background:var(--glass);
  border:1px solid var(--line);color:var(--text-2);font-size:.815rem;transition:.22s;
}
.tag-chip:hover{color:var(--brand);border-color:rgba(18,226,154,.4);background:var(--brand-soft)}
.share-bar{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;padding-bottom:36px}
.share-title{font-size:.9rem;color:var(--text-2)}
.share-group{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- Related ---------- */
.related{padding:64px 0 96px;background:var(--bg-1);border-top:1px solid var(--line)}
.section-head{max-width:860px;margin:0 auto 32px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:flex-end}
.section-head h2{font-size:clamp(1.35rem,2.2vw,1.75rem);font-weight:700}
.section-head p{color:var(--text-3);font-size:.9rem;margin-top:8px;max-width:42em}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rec-card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-card);background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--sh-card);transition:transform .25s,border-color .25s,box-shadow .25s;
}
.rec-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;z-index:2;
  background:linear-gradient(90deg,transparent,rgba(18,226,154,.5),transparent);
}
.rec-card:hover{transform:translateY(-4px);border-color:rgba(18,226,154,.35);box-shadow:var(--sh-hover)}
.rec-cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-2)}
.rec-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s}
.rec-card:hover .rec-cover img{transform:scale(1.04)}
.rec-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-title{font-size:1.02rem;font-weight:600;line-height:1.55;color:var(--text-1);transition:color .2s}
.rec-card:hover .rec-title{color:var(--brand)}
.rec-desc{font-size:.875rem;color:var(--text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.rec-meta{
  margin-top:auto;display:flex;align-items:center;gap:10px;
  font-size:.785rem;color:var(--text-3);letter-spacing:.04em;font-variant-numeric:tabular-nums;
}

/* ---------- Footer ---------- */
.site-footer{position:relative;overflow:hidden;background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 0}
.site-footer::before{
  content:"";position:absolute;left:-12%;bottom:-45%;width:640px;height:520px;pointer-events:none;
  background:radial-gradient(circle,rgba(18,226,154,.10),transparent 70%);
}
.site-footer .container{position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{font-size:1.02rem}
.footer-col p{color:var(--text-2);font-size:.9rem;line-height:1.85;max-width:34em}
.footer-col h4{font-size:.95rem;font-weight:600;color:var(--text-1);margin:0 0 16px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:var(--text-2);font-size:.9rem;display:inline-block;min-height:24px}
.footer-links a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:48px;padding:20px 0;border-top:1px solid var(--line);
  color:var(--text-3);font-size:.815rem;
}

/* ---------- Offcanvas ---------- */
.mobile-drawer{background:var(--bg-1);color:var(--text-1);border-left:1px solid var(--line);width:min(340px,88vw)}
.mobile-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:16px 20px}
.mobile-drawer .offcanvas-title{font-size:1rem;font-weight:700;color:var(--text-1)}
.mobile-drawer .btn-close{filter:invert(1) grayscale(1);opacity:.7}
.mobile-drawer .btn-close:focus{box-shadow:0 0 0 3px rgba(18,226,154,.25)}
.mobile-drawer .offcanvas-body{padding:20px;display:flex;flex-direction:column;gap:10px}
.drawer-link{
  display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:var(--r-input);
  color:var(--text-2);border:1px solid transparent;font-size:.95rem;transition:.2s;
}
.drawer-link:hover,.drawer-link.active{color:var(--brand);background:var(--brand-soft);border-color:rgba(18,226,154,.25)}
.mobile-drawer .search-box{width:100%}
.mobile-drawer .btn-brand{width:100%;margin-top:6px}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .container{max-width:960px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:991px){
  .nav-wrap{height:64px}
}
@media (max-width:767px){
  .breadcrumb-bar{padding-top:16px}
  .crumb-current{max-width:100%;white-space:normal}
  .article-head{padding:20px 0 32px}
  .article-title{font-size:1.65rem}
  .article-body{padding:32px 0 24px}
  .cms-content{font-size:.96rem;line-height:1.8}
  .article-foot{padding-top:22px}
  .related{padding:48px 0 64px}
  .related-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start}
  .share-bar{flex-direction:column;align-items:stretch}
  .share-group{flex-direction:column}
  .share-group .btn-brand,.share-group .btn-ghost,.share-bar .btn-ghost{width:100%}
  .site-footer{padding-top:48px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:519px){
  .container{padding-left:16px;padding-right:16px}
  .article-title{font-size:1.5rem}
  .rec-body{padding:18px}
}

/* roulang page: category1 */
:root{
  --bg-0:#06110F;
  --bg-1:#0A1A18;
  --bg-2:#0F2320;
  --brand:#12E29A;
  --brand-hi:#0FC98A;
  --brand-soft:rgba(18,226,154,.14);
  --accent:#FFB43C;
  --info:#7DE2FF;
  --text-1:#EAF5F2;
  --text-2:#A8BFBA;
  --text-3:#6F8783;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --r-card:18px;
  --r-img:14px;
  --r-pill:999px;
  --r-input:12px;
  --r-sm:10px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9);
  --shadow-hover:0 12px 40px -18px rgba(18,226,154,.32);
  --font-sans:-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",sans-serif;

  --bs-primary:#12E29A;
  --bs-body-bg:#06110F;
  --bs-body-color:#EAF5F2;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:14px;
  --bs-border-radius-lg:18px;
  --bs-border-radius-sm:10px;
  --bs-link-color:#12E29A;
  --bs-link-hover-color:#0FC98A;
  --bs-font-sans-serif:-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-sans);
  font-size:1rem;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-hi)}
button,input{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;color:var(--text-1)}
p{margin:0}
:focus-visible{outline:2px solid rgba(18,226,154,.6);outline-offset:2px}
::selection{background:rgba(18,226,154,.28);color:#04140F}

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

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  height:68px;
  display:flex;
  align-items:center;
  background:rgba(6,17,15,.72);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  width:100%;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--text-1);
}
.brand:hover{color:var(--text-1)}
.brand-mark{
  width:28px;height:28px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:9px;
  background:linear-gradient(135deg,#12E29A,#0A7F5C);
  color:#04140F;
  font-size:.92rem;
  font-weight:800;
  box-shadow:0 0 18px -6px rgba(18,226,154,.8);
}
.brand-text{
  font-size:1.05rem;
  font-weight:700;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.nav-links{
  align-items:center;
  gap:2px;
  margin-right:auto;
}
.nav-links .nav-link{
  position:relative;
  padding:8px 12px;
  font-size:.925rem;
  color:var(--text-2);
  border-radius:var(--r-sm);
  transition:color .2s ease;
}
.nav-links .nav-link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .25s ease;
}
.nav-links .nav-link:hover{color:var(--text-1)}
.nav-links .nav-link:hover::after{transform:scaleX(1)}
.nav-links .nav-link.active{color:var(--brand)}
.nav-links .nav-link.active::after{transform:scaleX(1)}
.header-tools{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.command-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:230px;
  padding:8px 12px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.command-search:focus-within{
  border-color:rgba(18,226,154,.6);
  box-shadow:0 0 0 4px rgba(18,226,154,.12);
}
.command-search i{color:var(--text-3);font-size:.82rem}
.command-search input{
  flex:1;
  min-width:0;
  background:transparent;
  border:none;
  outline:none;
  color:var(--text-1);
  font-size:.88rem;
}
.command-search input::placeholder{color:var(--text-3)}
.command-search .kbd{
  font-size:.72rem;
  color:var(--text-3);
  border:1px solid var(--line);
  border-radius:6px;
  padding:1px 6px;
  letter-spacing:.02em;
}
.icon-btn{
  width:40px;height:40px;
  align-items:center;justify-content:center;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-2);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(18,226,154,.4);background:var(--brand-soft)}
.menu-btn{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-1);
  font-size:1.05rem;
}
.menu-btn:hover{color:var(--brand);border-color:rgba(18,226,154,.4)}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 22px;
  font-size:.94rem;
  font-weight:600;
  line-height:1.2;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease,filter .2s ease;
}
.btn-brand{
  background:linear-gradient(135deg,#12E29A 0%,#7BE8C0 100%);
  color:#04140F;
  font-weight:700;
  box-shadow:0 0 24px -6px rgba(18,226,154,.7);
}
.btn-brand:hover{
  color:#04140F;
  transform:translateY(-1px);
  filter:brightness(1.04);
  box-shadow:0 0 32px -4px rgba(18,226,154,.85);
}
.btn-brand:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,.18);
  color:var(--text-1);
}
.btn-ghost:hover{
  color:var(--text-1);
  border-color:rgba(18,226,154,.55);
  background:var(--brand-soft);
  transform:translateY(-1px);
}
.btn-ghost:active{transform:translateY(0)}
.btn.copied{
  border-color:rgba(18,226,154,.65);
  background:var(--brand-soft);
  color:var(--brand);
}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:.88rem;
  font-weight:600;
  color:var(--brand);
  text-decoration:underline;
  text-underline-offset:4px;
  text-decoration-thickness:1px;
}
.link-more:hover{color:var(--brand-hi);text-decoration-color:transparent}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:72px 0 88px;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(15,35,32,.9) 0%,rgba(6,17,15,.96) 100%);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  opacity:.36;
  z-index:0;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(600px 380px at 88% 4%,rgba(18,226,154,.12),transparent 68%),
    linear-gradient(120deg,rgba(6,17,15,.96) 22%,rgba(6,17,15,.72) 62%,rgba(6,17,15,.9) 100%);
  z-index:1;
}
.hero-inner{position:relative;z-index:2}
.breadcrumb-line{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:.85rem;
  color:var(--text-3);
  margin-bottom:28px;
  flex-wrap:wrap;
}
.breadcrumb-line a{color:var(--text-2)}
.breadcrumb-line a:hover{color:var(--brand)}
.breadcrumb-line .sep{color:var(--brand);font-size:.8rem}
.breadcrumb-line .current{color:var(--text-1)}
.kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.75rem;
  letter-spacing:.18em;
  color:var(--brand);
  text-transform:uppercase;
  margin-bottom:16px;
}
.kicker .dot{
  width:7px;height:7px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 10px 2px rgba(18,226,154,.7);
}
.page-hero h1{
  font-size:clamp(2.2rem,4.2vw,3.4rem);
  font-weight:800;
  letter-spacing:-.02em;
  max-width:16em;
}
.hero-sub{
  margin-top:20px;
  max-width:42em;
  font-size:1.02rem;
  color:var(--text-2);
}
.hero-actions{
  display:flex;
  gap:14px;
  margin-top:32px;
  flex-wrap:wrap;
}
.hero-metrics{
  display:flex;
  gap:48px;
  margin-top:48px;
  flex-wrap:wrap;
}
.metric-num{
  font-size:1.6rem;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  color:var(--brand);
}
.metric-label{
  display:block;
  font-size:.8rem;
  letter-spacing:.04em;
  color:var(--text-3);
}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section-band{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
  flex-wrap:wrap;
}
.section-head h2{
  font-size:clamp(1.55rem,2.4vw,2.1rem);
  letter-spacing:-.01em;
}
.section-head p{
  margin-top:10px;
  color:var(--text-2);
  max-width:44em;
  font-size:.96rem;
}
.eyebrow{
  display:inline-block;
  font-size:.75rem;
  letter-spacing:.18em;
  color:var(--accent);
  margin-bottom:10px;
  font-weight:700;
}

/* ============ 分类内容：双列大卡 + 侧栏 ============ */
.entry-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 312px;
  gap:32px;
  align-items:start;
}
.entry-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.entry-card{
  position:relative;
  display:flex;
  flex-direction:column;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  scroll-margin-top:96px;
}
.entry-card::before{
  content:"";
  position:absolute;
  top:0;left:8%;right:8%;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,226,154,.5),transparent);
  z-index:3;
}
.entry-card:hover{
  transform:translateY(-4px);
  border-color:rgba(18,226,154,.35);
  box-shadow:var(--shadow-card),var(--shadow-hover);
}
.entry-thumb{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/10;
  background:var(--bg-2);
}
.entry-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.entry-card:hover .entry-thumb img{transform:scale(1.04)}
.entry-thumb::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(6,17,15,0) 42%,rgba(6,17,15,.78) 100%);
}
.entry-index{
  position:absolute;
  left:16px;bottom:10px;
  font-size:2rem;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  color:rgba(234,245,242,.55);
  letter-spacing:-.03em;
  z-index:2;
}
.entry-badge{
  position:absolute;
  top:14px;right:14px;
  z-index:2;
  padding:4px 12px;
  font-size:.75rem;
  border-radius:var(--r-pill);
  border:1px solid rgba(18,226,154,.35);
  background:rgba(6,17,15,.72);
  color:var(--brand);
  backdrop-filter:blur(6px);
}
.entry-body{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:22px;
  flex:1;
}
.entry-body h3{font-size:1.25rem;font-weight:600}
.entry-body p{color:var(--text-2);font-size:.94rem}
.entry-facts{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  padding-top:4px;
  font-size:.815rem;
  letter-spacing:.04em;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.entry-facts li{display:inline-flex;align-items:center;gap:6px}
.entry-facts i{color:var(--brand);font-size:.72rem}
.entry-body .link-more{margin-top:auto;align-self:flex-start}

/* 侧栏目录 */
.entry-side{position:sticky;top:92px}
.side-card{
  position:relative;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.side-card::before{
  content:"";
  position:absolute;
  top:0;left:12%;right:12%;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,226,154,.5),transparent);
}
.side-card h3{
  font-size:1.05rem;
  font-weight:600;
  margin-bottom:16px;
}
.side-nav{display:flex;flex-direction:column;gap:2px}
.side-nav a{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:var(--r-sm);
  font-size:.9rem;
  color:var(--text-2);
  border-left:2px solid transparent;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.side-nav a:hover{
  color:var(--text-1);
  background:var(--brand-soft);
  border-left-color:var(--brand);
}
.side-nav a span.num{
  font-size:.75rem;
  font-variant-numeric:tabular-nums;
  color:var(--accent);
  letter-spacing:.06em;
}
.side-tip{
  margin-top:20px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:.82rem;
  color:var(--text-3);
  line-height:1.7;
}

/* ============ 步骤 ============ */
.step-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  counter-reset:step;
}
.step-item{
  position:relative;
  padding:24px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.step-item:hover{
  transform:translateY(-4px);
  border-color:rgba(18,226,154,.35);
  box-shadow:var(--shadow-hover);
}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;height:36px;
  border-radius:var(--r-sm);
  border:1px solid rgba(18,226,154,.35);
  background:var(--brand-soft);
  color:var(--brand);
  font-weight:800;
  font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.step-item h3{font-size:1.05rem;font-weight:600;margin-bottom:10px}
.step-item p{font-size:.9rem;color:var(--text-2)}

/* ============ 相关分类 ============ */
.related-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.related-card{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:24px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  color:var(--text-1);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.related-card:hover{
  color:var(--text-1);
  transform:translateY(-4px);
  border-color:rgba(18,226,154,.35);
  box-shadow:var(--shadow-hover);
}
.related-card i{
  width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-sm);
  background:var(--brand-soft);
  color:var(--brand);
  font-size:.95rem;
}
.related-card h3{font-size:1.05rem;font-weight:600}
.related-card p{font-size:.88rem;color:var(--text-2)}
.related-card .arrow{
  margin-top:auto;
  color:var(--brand);
  font-size:.85rem;
  transition:transform .25s ease;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.related-card:hover .arrow{transform:translateX(4px)}

/* ============ FAQ ============ */
.faq-acc{
  display:flex;
  flex-direction:column;
  gap:12px;
  background:transparent;
  border:none;
}
.faq-acc .accordion-item{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-img);
  overflow:hidden;
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.faq-acc .accordion-button{
  position:relative;
  width:100%;
  padding:18px 56px 18px 22px;
  background:transparent;
  color:var(--text-1);
  font-size:1.05rem;
  font-weight:600;
  line-height:1.5;
  box-shadow:none;
  border:none;
}
.faq-acc .accordion-button::before{
  content:"";
  position:absolute;
  left:0;
  top:14px;
  bottom:14px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--brand);
  box-shadow:0 0 12px rgba(18,226,154,.6);
  opacity:0;
  transition:opacity .2s ease;
}
.faq-acc .accordion-button:not(.collapsed){
  background:rgba(18,226,154,.06);
  color:var(--brand);
}
.faq-acc .accordion-button:not(.collapsed)::before{opacity:1}
.faq-acc .accordion-button:focus{box-shadow:0 0 0 2px rgba(18,226,154,.35) inset}
.faq-acc .accordion-button::after{
  content:"";
  position:absolute;
  right:24px;
  top:50%;
  width:11px;
  height:11px;
  margin:0;
  background-image:none;
  border-right:2px solid var(--brand);
  border-bottom:2px solid var(--brand);
  transform:translateY(-70%) rotate(45deg);
  transition:transform .25s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  transform:translateY(-30%) rotate(225deg);
}
.faq-acc .accordion-body{
  padding:0 22px 20px;
  font-size:.95rem;
  color:var(--text-2);
  line-height:1.85;
}

/* ============ CTA 玻璃带 ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  padding:56px 0;
  background:var(--bg-2);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.cta-band::after{
  content:"";
  position:absolute;
  left:-8%;
  bottom:-60%;
  width:520px;height:520px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(18,226,154,.12),transparent 66%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-inner h2{
  font-size:clamp(1.35rem,2vw,1.7rem);
  margin-bottom:10px;
}
.cta-inner p{color:var(--text-2);font-size:.95rem;max-width:38em}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  position:relative;
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  left:-10%;
  bottom:-70%;
  width:560px;height:560px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(18,226,154,.1),transparent 68%);
  pointer-events:none;
}
.footer-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:32px;
  padding-bottom:40px;
  border-bottom:1px solid var(--line);
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-brand .brand-mark{
  width:28px;height:28px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:9px;
  background:linear-gradient(135deg,#12E29A,#0A7F5C);
  color:#04140F;
  font-weight:800;
  font-size:.92rem;
}
.footer-brand .brand-text{
  font-size:1.05rem;
  font-weight:700;
  color:var(--text-1);
}
.footer-col p{
  font-size:.88rem;
  color:var(--text-3);
  line-height:1.8;
  max-width:28em;
}
.footer-col h4{
  font-size:.95rem;
  font-weight:600;
  margin-bottom:16px;
  color:var(--text-1);
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-links a{
  font-size:.88rem;
  color:var(--text-2);
  text-decoration:none;
}
.footer-links a:hover{color:var(--brand)}
.footer-bottom{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-top:24px;
  font-size:.8rem;
  color:var(--text-3);
  flex-wrap:wrap;
}

/* ============ 移动端抽屉 ============ */
.mobile-nav{
  background:var(--bg-1)!important;
  border-left:1px solid var(--line)!important;
  color:var(--text-1);
  width:min(340px,88vw);
}
.mobile-nav .offcanvas-header{
  border-bottom:1px solid var(--line);
  padding:18px 20px;
}
.mobile-nav .offcanvas-title{font-size:1rem;font-weight:700}
.mobile-nav .btn-close{
  filter:invert(1) grayscale(1) brightness(1.6);
  opacity:.7;
}
.mobile-nav .offcanvas-body{
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.mobile-links{display:flex;flex-direction:column;gap:4px}
.mobile-links a{
  display:flex;
  align-items:center;
  min-height:44px;
  padding:10px 14px;
  border-radius:var(--r-sm);
  color:var(--text-2);
  font-size:.95rem;
  border:1px solid transparent;
}
.mobile-links a:hover{
  color:var(--text-1);
  background:var(--brand-soft);
  border-color:rgba(18,226,154,.3);
}
.mobile-links a.active{
  color:var(--brand);
  background:var(--brand-soft);
  border-color:rgba(18,226,154,.35);
}
.mobile-search{
  display:flex;
  align-items:center;
  gap:8px;
  padding:10px 14px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--glass);
}
.mobile-search i{color:var(--text-3);font-size:.85rem}
.mobile-search input{
  flex:1;
  min-width:0;
  background:transparent;
  border:none;
  outline:none;
  color:var(--text-1);
  font-size:.9rem;
}
.mobile-search input::placeholder{color:var(--text-3)}
.mobile-nav .btn{width:100%}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .container{max-width:960px}
  .entry-layout{grid-template-columns:minmax(0,1fr) 280px;gap:24px}
  .command-search{width:190px}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:991.98px){
  .entry-layout{grid-template-columns:minmax(0,1fr)}
  .entry-side{position:static}
  .side-nav{flex-direction:row;flex-wrap:wrap;gap:8px}
  .side-nav a{border-left:none;border:1px solid var(--line);padding:8px 12px}
  .side-nav a:hover{border-color:rgba(18,226,154,.4)}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .page-hero{padding:56px 0 64px}
  .section{padding:72px 0}
}
@media (max-width:767.98px){
  .container{padding:0 16px}
  .entry-grid{grid-template-columns:minmax(0,1fr);gap:16px}
  .hero-metrics{gap:28px;margin-top:32px}
  .hero-actions{gap:12px}
  .hero-actions .btn{width:100%}
  .section{padding:56px 0}
  .section-head{margin-bottom:24px}
  .step-grid{grid-template-columns:minmax(0,1fr);gap:16px}
  .related-grid{grid-template-columns:minmax(0,1fr);gap:16px}
  .cta-band{padding:48px 0}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .page-hero h1{font-size:clamp(1.9rem,7vw,2.4rem)}
}
@media (max-width:520px){
  .brand-text{font-size:.98rem}
  .entry-body{padding:18px}
  .side-card{padding:18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: category2 */
:root{
  --bg-0:#06110F;
  --bg-1:#0A1A18;
  --bg-2:#0F2320;
  --brand:#12E29A;
  --brand-hi:#0FC98A;
  --brand-soft:rgba(18,226,154,.14);
  --accent:#FFB43C;
  --info:#7DE2FF;
  --text-1:#EAF5F2;
  --text-2:#A8BFBA;
  --text-3:#6F8783;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --r-card:18px;
  --r-img:14px;
  --r-pill:999px;
  --r-input:12px;
  --r-sm:10px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9);
  --shadow-hover:0 12px 40px -18px rgba(18,226,154,.32);
  --s-4:4px; --s-8:8px; --s-12:12px; --s-16:16px; --s-24:24px;
  --s-32:32px; --s-48:48px; --s-64:64px; --s-96:96px; --s-120:120px;
  --bs-primary:#12E29A;
  --bs-body-bg:#06110F;
  --bs-body-color:#EAF5F2;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:18px;
  --bs-border-radius-sm:10px;
  --bs-border-radius-lg:18px;
  --bs-link-color:#12E29A;
  --bs-link-hover-color:#0FC98A;
  --bs-font-sans-serif:-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  top:-180px;right:-160px;
  width:620px;height:620px;
  background:radial-gradient(circle,rgba(18,226,154,.12),transparent 68%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img);}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-hi);}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;color:var(--text-1);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;}
::selection{background:rgba(18,226,154,.28);color:#fff;}
:focus-visible{outline:2px solid rgba(18,226,154,.6);outline-offset:2px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:2;
}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:rgba(6,17,15,.72);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.header-inner{
  min-height:68px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--s-24);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text-1);
  flex:0 0 auto;
}
.brand:hover{color:var(--text-1);}
.brand-mark{
  width:28px;height:28px;
  border-radius:9px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:.95rem;
  font-weight:800;
  color:#04140F;
  background:linear-gradient(135deg,#12E29A,#7BE8C0);
  box-shadow:0 0 20px -6px rgba(18,226,154,.8);
  flex:0 0 auto;
}
.brand-text{font-size:1.05rem;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.nav-links{
  display:flex;
  align-items:center;
  gap:var(--s-24);
  margin-left:auto;
  margin-right:auto;
}
.nav-links .nav-link{
  position:relative;
  padding:6px 2px;
  font-size:.925rem;
  color:var(--text-2);
  white-space:nowrap;
  transition:color .18s ease;
}
.nav-links .nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--brand);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s ease;
}
.nav-links .nav-link:hover{color:var(--brand);}
.nav-links .nav-link:hover::after{transform:scaleX(1);}
.nav-links .nav-link.active{color:var(--brand);}
.nav-links .nav-link.active::after{transform:scaleX(1);}
.header-tools{
  display:flex;
  align-items:center;
  gap:var(--s-12);
  flex:0 0 auto;
}
.command-search{
  position:relative;
  display:flex;
  align-items:center;
  gap:8px;
  width:236px;
  height:40px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--glass);
  border:1px solid var(--line);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.command-search:focus-within{
  border-color:rgba(18,226,154,.55);
  background:rgba(18,226,154,.07);
  box-shadow:0 0 0 4px rgba(18,226,154,.12);
}
.command-search svg{flex:0 0 auto;color:var(--text-3);}
.command-search input{
  flex:1 1 auto;
  min-width:0;
  background:transparent;
  border:0;
  color:var(--text-1);
  font-size:.875rem;
  outline:none;
}
.command-search input::placeholder{color:var(--text-3);}
.command-search .kbd{
  flex:0 0 auto;
  font-size:.7rem;
  color:var(--text-3);
  border:1px solid var(--line);
  border-radius:6px;
  padding:1px 6px;
  font-variant-numeric:tabular-nums;
}
.tool-icon{
  width:40px;height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-2);
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.tool-icon:hover{color:var(--brand);border-color:rgba(18,226,154,.35);background:var(--brand-soft);}
.burger{
  width:44px;height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-1);
  cursor:pointer;
  transition:border-color .18s ease,background .18s ease;
}
.burger:hover{border-color:rgba(18,226,154,.35);background:var(--brand-soft);}
.site-offcanvas{
  background:var(--bg-1);
  border-left:1px solid var(--line);
  color:var(--text-1);
  width:min(340px,88vw);
}
.site-offcanvas .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
.site-offcanvas .offcanvas-title{font-size:1rem;font-weight:700;}
.site-offcanvas .btn-close{
  filter:invert(1) grayscale(1);
  opacity:.7;
}
.mobile-links{display:flex;flex-direction:column;gap:var(--s-8);margin-bottom:var(--s-24);}
.mobile-links a{
  display:flex;
  align-items:center;
  min-height:44px;
  padding:0 14px;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  color:var(--text-2);
  font-size:.95rem;
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.mobile-links a:hover{color:var(--brand);background:var(--brand-soft);border-color:rgba(18,226,154,.28);}
.mobile-links a.active{color:var(--brand);background:var(--brand-soft);border-color:rgba(18,226,154,.28);}

/* ---------- buttons ---------- */
.btn{
  border-radius:var(--r-pill);
  font-weight:600;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease,filter .18s ease;
}
.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  font-size:.95rem;
  font-weight:700;
  color:#04140F;
  background:linear-gradient(135deg,#12E29A,#7BE8C0);
  box-shadow:0 0 24px -6px rgba(18,226,154,.7);
}
.btn-main:hover{color:#04140F;transform:translateY(-1px);filter:brightness(1.04);box-shadow:0 0 32px -4px rgba(18,226,154,.85);}
.btn-main:active{transform:translateY(0);filter:brightness(.98);}
.btn-main:disabled,.btn-main.disabled{opacity:.5;transform:none;box-shadow:none;cursor:not-allowed;}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  font-size:.95rem;
  color:var(--text-1);
  background:transparent;
  border:1px solid rgba(255,255,255,.18);
}
.btn-ghost:hover{color:var(--brand);border-color:rgba(18,226,154,.5);background:var(--brand-soft);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-link-soft{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:0;
  font-size:.9rem;
  font-weight:600;
  color:var(--brand);
  background:none;
  border:0;
  text-decoration:underline;
  text-underline-offset:4px;
  text-decoration-thickness:1px;
}
.btn-link-soft:hover{color:var(--brand-hi);text-decoration-color:transparent;}
.btn.is-done{color:var(--brand);border-color:rgba(18,226,154,.5);background:var(--brand-soft);}

/* ---------- badges ---------- */
.badge-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 12px;
  font-size:.75rem;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--brand);
  background:var(--brand-soft);
  border:1px solid rgba(18,226,154,.3);
  border-radius:var(--r-pill);
}
.badge-accent{
  color:var(--accent);
  background:rgba(255,180,60,.12);
  border-color:rgba(255,180,60,.34);
}
.kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.75rem;
  font-weight:600;
  letter-spacing:.18em;
  color:var(--brand);
  text-transform:uppercase;
}
.kicker .dot{
  width:7px;height:7px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 12px 2px rgba(18,226,154,.75);
}
.meta-time{
  font-size:.815rem;
  letter-spacing:.04em;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
}

/* ---------- breadcrumb ---------- */
.breadcrumb-bar{
  border-bottom:1px solid var(--line);
  background:rgba(10,26,24,.5);
}
.breadcrumb-list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:14px 0;
  font-size:.85rem;
}
.breadcrumb-list a{color:var(--text-3);}
.breadcrumb-list a:hover{color:var(--brand);}
.breadcrumb-list .sep{color:var(--brand);font-size:.8rem;}
.breadcrumb-list .current{color:var(--text-2);}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  background-image:linear-gradient(180deg,rgba(6,17,15,.82),rgba(6,17,15,.95)),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none;
  opacity:.7;
}
.page-hero .container{position:relative;z-index:3;}
.hero-inner{padding:var(--s-64) 0 var(--s-64);max-width:860px;}
.page-hero h1{
  font-size:clamp(2.2rem,4.2vw,3.4rem);
  font-weight:800;
  line-height:1.22;
  margin:var(--s-16) 0 var(--s-16);
}
.page-hero .lead{
  font-size:1.05rem;
  color:var(--text-2);
  max-width:42em;
}
.hero-metrics{
  display:flex;
  flex-wrap:wrap;
  gap:var(--s-32);
  margin-top:var(--s-24);
  padding-top:var(--s-24);
  border-top:1px solid var(--line);
}
.metric{min-width:110px;}
.metric-value{
  display:block;
  font-size:1.6rem;
  font-weight:800;
  color:var(--brand);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.metric-label{
  display:block;
  margin-top:4px;
  font-size:.78rem;
  color:var(--text-3);
  letter-spacing:.06em;
}

/* ---------- section ---------- */
.section{padding:var(--s-96) 0;}
.section-band{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:var(--s-32);}
.section-head h2{
  font-size:clamp(1.55rem,2.4vw,2.1rem);
  font-weight:700;
  line-height:1.3;
  margin:var(--s-12) 0 var(--s-12);
}
.section-sub{color:var(--text-2);font-size:.975rem;max-width:42em;}

/* ---------- glass card base ---------- */
.glass{
  position:relative;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.glass::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,226,154,.5),transparent);
}
.glass::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none;
}

/* ---------- timeline ---------- */
.timeline{
  position:relative;
  padding-left:34px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:9px;
  top:8px;
  bottom:8px;
  width:2px;
  border-radius:2px;
  background:linear-gradient(180deg,rgba(18,226,154,0),rgba(18,226,154,.8) 10%,rgba(18,226,154,.5) 72%,rgba(18,226,154,0));
}
.tl-item{
  position:relative;
  padding-bottom:var(--s-24);
}
.tl-item:last-child{padding-bottom:0;}
.tl-node{
  position:absolute;
  left:-30px;
  top:32px;
  width:12px;height:12px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 4px rgba(18,226,154,.16),0 0 18px rgba(18,226,154,.8);
  z-index:3;
}
.tl-card{
  position:relative;
  display:grid;
  grid-template-columns:180px 1fr auto;
  gap:var(--s-24);
  align-items:center;
  padding:var(--s-24);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.tl-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,226,154,.5),transparent);
}
.tl-card:hover{
  transform:translateY(-4px);
  border-color:rgba(18,226,154,.35);
  background:rgba(18,226,154,.05);
  box-shadow:var(--shadow-card),var(--shadow-hover);
}
.tl-thumb{
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
}
.tl-thumb img{
  width:100%;
  height:120px;
  object-fit:cover;
  border-radius:var(--r-img);
  transition:transform .35s ease;
}
.tl-card:hover .tl-thumb img{transform:scale(1.05);}
.tl-body{min-width:0;}
.tl-num{
  display:inline-block;
  font-size:1.5rem;
  font-weight:800;
  color:rgba(255,180,60,.85);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
  margin-bottom:6px;
}
.tl-body h3{font-size:1.25rem;font-weight:600;margin-bottom:var(--s-8);}
.tl-body p{color:var(--text-2);font-size:.94rem;max-width:42em;}
.tl-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:var(--s-16);
  margin-top:var(--s-12);
}
.card-arrow{
  width:44px;height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid rgba(18,226,154,.35);
  color:var(--brand);
  background:var(--brand-soft);
  font-size:1.05rem;
  transition:transform .22s ease,background .22s ease,color .22s ease;
}
.tl-card:hover .card-arrow{transform:translateX(4px);}

/* ---------- steps ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:var(--s-24);
}
.step{
  position:relative;
  padding:var(--s-24);
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.step::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,226,154,.5),transparent);
}
.step:hover{transform:translateY(-4px);border-color:rgba(18,226,154,.35);box-shadow:var(--shadow-card),var(--shadow-hover);}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border-radius:var(--r-sm);
  border:1px solid rgba(18,226,154,.3);
  background:var(--brand-soft);
  color:var(--brand);
  font-weight:800;
  font-variant-numeric:tabular-nums;
  margin-bottom:var(--s-16);
}
.step h3{font-size:1.1rem;font-weight:600;margin-bottom:var(--s-8);}
.step p{color:var(--text-2);font-size:.92rem;}

/* ---------- related ---------- */
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:var(--s-24);
}
.related-card{
  position:relative;
  display:block;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--glass);
  box-shadow:var(--shadow-card);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.related-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  z-index:3;
  background:linear-gradient(90deg,transparent,rgba(18,226,154,.5),transparent);
}
.related-card:hover{transform:translateY(-4px);border-color:rgba(18,226,154,.35);box-shadow:var(--shadow-card),var(--shadow-hover);}
.related-card img{
  width:100%;
  height:160px;
  object-fit:cover;
  border-radius:0;
  transition:transform .35s ease;
}
.related-card:hover img{transform:scale(1.05);}
.related-body{padding:20px;position:relative;z-index:2;}
.related-body h3{font-size:1.05rem;font-weight:600;color:var(--text-1);margin-bottom:8px;}
.related-body p{font-size:.9rem;color:var(--text-2);}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  padding:var(--s-32) var(--s-48);
}
.cta-band::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,226,154,.5),transparent);
}
.cta-band::after{
  content:"";
  position:absolute;
  left:-120px;bottom:-160px;
  width:360px;height:360px;
  background:radial-gradient(circle,rgba(18,226,154,.12),transparent 70%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:var(--s-24);
}
.cta-inner h2{font-size:clamp(1.3rem,2vw,1.7rem);font-weight:700;margin-bottom:8px;}
.cta-inner p{color:var(--text-2);font-size:.95rem;max-width:38em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:var(--s-12);}

/* ---------- banner note ---------- */
.note-strip{
  display:flex;
  flex-wrap:wrap;
  gap:var(--s-24);
  justify-content:space-between;
  align-items:center;
  padding:18px var(--s-24);
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:rgba(18,226,154,.05);
  margin-top:var(--s-32);
}
.note-strip p{color:var(--text-2);font-size:.9rem;max-width:46em;}
.note-strip .note-actions{display:flex;gap:var(--s-12);flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  margin-top:var(--s-96);
  padding:var(--s-64) 0 var(--s-24);
  background:var(--bg-1);
  border-top:1px solid var(--line);
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  left:-140px;bottom:-180px;
  width:420px;height:420px;
  background:radial-gradient(circle,rgba(18,226,154,.12),transparent 70%);
  pointer-events:none;
}
.site-footer .container{position:relative;z-index:2;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:var(--s-32);
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:var(--s-16);
}
.footer-brand .brand-mark{width:26px;height:26px;font-size:.85rem;}
.footer-brand .brand-text{font-size:1rem;font-weight:700;}
.footer-col p{color:var(--text-3);font-size:.9rem;max-width:34em;}
.footer-col h4{
  font-size:.95rem;
  font-weight:600;
  color:var(--text-1);
  margin-bottom:var(--s-16);
  letter-spacing:.02em;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  color:var(--text-2);
  font-size:.9rem;
  text-decoration:none;
  transition:color .18s ease,transform .18s ease;
}
.footer-links a:hover{color:var(--brand);transform:translateX(2px);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:var(--s-12);
  margin-top:var(--s-48);
  padding-top:var(--s-24);
  border-top:1px solid var(--line);
  font-size:.815rem;
  color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .container{max-width:960px;}
  .nav-links{gap:var(--s-16);}
  .command-search{width:200px;}
}
@media (max-width:991.98px){
  .section{padding:var(--s-64) 0;}
  .page-hero .hero-inner{padding:var(--s-48) 0;}
  .tl-card{grid-template-columns:150px 1fr auto;gap:var(--s-16);}
  .tl-thumb img{height:104px;}
  .steps{grid-template-columns:1fr 1fr;}
  .related-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cta-band{padding:var(--s-24);}
}
@media (max-width:767.98px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:var(--s-24);}
  .page-hero h1{font-size:clamp(2rem,7vw,2.4rem);}
  .hero-inner{padding:var(--s-32) 0;}
  .hero-metrics{gap:var(--s-24);padding-top:var(--s-16);margin-top:var(--s-16);}
  .metric-value{font-size:1.35rem;}
  .timeline{padding-left:24px;}
  .timeline::before{left:5px;}
  .tl-node{left:-24px;top:26px;}
  .tl-card{grid-template-columns:1fr;gap:var(--s-16);}
  .tl-thumb img{height:150px;}
  .card-arrow{justify-self:flex-start;}
  .steps{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .site-footer{margin-top:var(--s-64);padding-top:var(--s-48);}
}
@media (max-width:519.98px){
  .page-hero h1{font-size:1.9rem;}
  .hero-metrics{gap:var(--s-16);}
  .metric{min-width:88px;}
  .cta-band{padding:20px 16px;}
  .note-strip{padding:16px;}
}

/* roulang page: category3 */
:root{
  --bg-0:#06110F;
  --bg-1:#0A1A18;
  --bg-2:#0F2320;
  --brand:#12E29A;
  --brand-hi:#0FC98A;
  --brand-soft:rgba(18,226,154,.14);
  --accent:#FFB43C;
  --info:#7DE2FF;
  --text-1:#EAF5F2;
  --text-2:#A8BFBA;
  --text-3:#6F8783;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --r-card:18px;
  --r-img:14px;
  --r-pill:999px;
  --r-input:12px;
  --r-sm:10px;
  --sh-card:0 18px 40px -24px rgba(0,0,0,.9);
  --sh-brand:0 12px 40px -18px rgba(18,226,154,.32);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-zh:-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-primary:#12E29A;
  --bs-primary-rgb:18,226,154;
  --bs-body-bg:#06110F;
  --bs-body-color:#EAF5F2;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-link-color:#12E29A;
  --bs-link-hover-color:#0FC98A;
  --bs-border-radius:18px;
  --bs-border-radius-sm:10px;
  --bs-border-radius-lg:18px;
  --bs-border-radius-xl:18px;
  --bs-font-sans-serif:-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-body-font-family:-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-zh);
  font-size:1rem;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before,body::after{
  content:"";
  position:fixed;
  width:640px;height:640px;
  border-radius:50%;
  pointer-events:none;
  z-index:0;
}
body::before{top:-220px;right:-180px;background:radial-gradient(circle,rgba(18,226,154,.12),transparent 66%)}
body::after{bottom:-260px;left:-200px;background:radial-gradient(circle,rgba(18,226,154,.10),transparent 68%)}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--brand-hi)}
p{margin:0 0 1em;color:var(--text-2);max-width:42em}
h1,h2,h3,h4{margin:0;color:var(--text-1);line-height:1.35}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,.accordion-button:focus-visible{
  outline:2px solid rgba(18,226,154,.6);
  outline-offset:2px;
  border-radius:6px;
}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
  position:relative;
  z-index:1;
}
/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:rgba(6,17,15,.72);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text-1);
  flex-shrink:0;
}
.brand:hover{color:var(--text-1)}
.brand-mark{
  width:28px;height:28px;
  border-radius:9px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:.9rem;
  font-weight:800;
  color:#04140F;
  background:linear-gradient(135deg,#12E29A,#7BE8C0);
  box-shadow:0 0 18px -4px rgba(18,226,154,.8);
}
.brand-text{
  font-size:1.05rem;
  font-weight:700;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:4px;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 2px;
  font-size:.925rem;
  color:var(--text-2);
  text-decoration:none;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--brand);
  box-shadow:0 0 10px rgba(18,226,154,.7);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .25s var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:var(--brand)}
.nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1)}
.nav-link.active{color:var(--text-1);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.command-search{
  display:inline-flex;
  align-items:center;
  gap:8px;
  width:240px;
  height:40px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--glass);
  border:1px solid var(--line);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.command-search i{color:var(--text-3);font-size:.85rem}
.command-search input{
  flex:1;
  min-width:0;
  background:transparent;
  border:0;
  color:var(--text-1);
  font-size:.875rem;
  outline:none;
}
.command-search input::placeholder{color:var(--text-3)}
.command-search:focus-within{
  border-color:rgba(18,226,154,.55);
  box-shadow:0 0 0 4px rgba(18,226,154,.12),0 0 22px -8px rgba(18,226,154,.7);
}
.kbd{
  font-size:.7rem;
  color:var(--text-3);
  border:1px solid var(--line);
  border-radius:6px;
  padding:1px 5px;
  line-height:1.4;
}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-2);
  transition:all .22s var(--ease);
}
.icon-btn:hover,.icon-btn:focus-visible{
  color:var(--brand);
  border-color:rgba(18,226,154,.35);
  background:var(--brand-soft);
}
.hamburger{
  width:44px;height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-1);
  font-size:1.05rem;
  transition:all .22s var(--ease);
}
.hamburger:hover{border-color:rgba(18,226,154,.4);color:var(--brand)}
/* ---------- buttons ---------- */
.btn{
  border-radius:var(--r-pill);
  font-weight:600;
  transition:all .22s var(--ease);
  border:1px solid transparent;
}
.btn:focus,.btn:active:focus{box-shadow:none}
.btn-brand{
  background:linear-gradient(135deg,#12E29A,#7BE8C0);
  color:#04140F;
  font-weight:700;
  padding:12px 22px;
  box-shadow:0 0 24px -6px rgba(18,226,154,.7);
}
.btn-brand:hover,.btn-brand:focus-visible{
  color:#04140F;
  transform:translateY(-1px);
  filter:brightness(1.04);
  box-shadow:0 0 34px -4px rgba(18,226,154,.85);
}
.btn-brand:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;
  border:1px solid rgba(255,255,255,.18);
  color:var(--text-1);
  padding:12px 22px;
}
.btn-ghost:hover,.btn-ghost:focus-visible{
  border-color:var(--brand);
  background:var(--brand-soft);
  color:var(--text-1);
  transform:translateY(-1px);
}
.btn-ghost:active{transform:translateY(0)}
.btn-sm-brand{padding:9px 18px;font-size:.9rem}
.btn.is-copied{border-color:var(--brand);background:var(--brand-soft);color:var(--brand)}
/* ---------- breadcrumb ---------- */
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:.85rem;
  color:var(--text-3);
  padding-top:28px;
}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--brand);font-size:.7rem}
.crumb .now{color:var(--text-2)}
/* ---------- page head ---------- */
.page-head{
  position:relative;
  padding:32px 0 72px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-head-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  opacity:.3;
  z-index:0;
}
.page-head-mask{
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(6,17,15,.72) 0%,rgba(6,17,15,.92) 62%,var(--bg-0) 100%);
  z-index:0;
}
.page-head .container{position:relative;z-index:2}
.kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.75rem;
  letter-spacing:.18em;
  color:var(--brand);
  text-transform:uppercase;
  margin-bottom:16px;
}
.kicker::before{
  content:"";
  width:7px;height:7px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 12px 2px rgba(18,226,154,.8);
}
.page-head h1{
  font-size:clamp(2.2rem,4.2vw,3.4rem);
  font-weight:800;
  letter-spacing:-.02em;
  max-width:22em;
  margin-bottom:16px;
}
.page-head h1 em{
  font-style:normal;
  color:var(--brand);
}
.page-head .lead{
  font-size:1.05rem;
  color:var(--text-2);
  max-width:44em;
  margin-bottom:28px;
}
.head-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.head-metrics{
  display:flex;
  flex-wrap:wrap;
  gap:32px;
  margin-top:40px;
  padding-top:28px;
  border-top:1px solid var(--line);
}
.head-metrics .m b{
  display:block;
  font-size:1.65rem;
  font-weight:800;
  color:var(--text-1);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.head-metrics .m span{
  font-size:.815rem;
  letter-spacing:.04em;
  color:var(--text-3);
}
/* ---------- sections ---------- */
.section{padding:96px 0;position:relative}
.section.tight{padding-top:64px}
.section-head{margin-bottom:32px}
.section-head h2{
  font-size:clamp(1.55rem,2.4vw,2.1rem);
  font-weight:700;
  margin-bottom:12px;
}
.section-head p{margin-bottom:0;color:var(--text-2)}
.section-head-row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  margin-bottom:32px;
}
/* ---------- filter chips ---------- */
.filter-row{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-bottom:32px;
}
.chip{
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 18px;
  border-radius:var(--r-pill);
  font-size:.875rem;
  color:var(--text-2);
  border:1px solid var(--line);
  background:var(--glass);
  transition:all .22s var(--ease);
  cursor:default;
}
.chip:hover{border-color:rgba(18,226,154,.4);color:var(--text-1)}
.chip.is-active{
  background:linear-gradient(135deg,#12E29A,#7BE8C0);
  color:#04140F;
  font-weight:700;
  border-color:transparent;
  box-shadow:0 0 22px -8px rgba(18,226,154,.85);
}
/* ---------- mini cards ---------- */
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.mini-card{
  position:relative;
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--glass);
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:24px 24px;
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-card);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.mini-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,226,154,.5),transparent);
  z-index:3;
}
.mini-card:hover{
  transform:translateY(-4px);
  border-color:rgba(18,226,154,.35);
  box-shadow:var(--sh-card),var(--sh-brand);
}
.mini-cover{
  width:100%;
  height:152px;
  object-fit:cover;
  border-bottom:1px solid var(--line);
  transition:transform .4s var(--ease);
}
.mini-card:hover .mini-cover{transform:scale(1.04)}
.mini-body{
  position:relative;
  padding:20px 22px 22px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
}
.card-num{
  font-size:.75rem;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.mini-body h3{
  font-size:1.15rem;
  font-weight:600;
}
.mini-body p{
  font-size:.9rem;
  color:var(--text-2);
  margin:0;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  font-size:.815rem;
  letter-spacing:.04em;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
  margin-top:auto;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:var(--r-pill);
  font-size:.75rem;
  color:var(--brand);
  background:var(--brand-soft);
  border:1px solid rgba(18,226,154,.28);
}
.tag.accent{
  color:var(--accent);
  background:rgba(255,180,60,.12);
  border-color:rgba(255,180,60,.3);
}
.card-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.875rem;
  font-weight:600;
  color:var(--brand);
  text-decoration:underline;
  text-underline-offset:4px;
}
.card-link i{transition:transform .22s var(--ease)}
.card-link:hover{color:var(--brand-hi);text-decoration:none}
.card-link:hover i{transform:translateX(4px)}
/* ---------- steps ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.step{
  position:relative;
  padding:24px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  transition:border-color .25s var(--ease),transform .25s var(--ease);
}
.step:hover{border-color:rgba(18,226,154,.35);transform:translateY(-4px)}
.step-num{
  width:38px;height:38px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  background:var(--brand-soft);
  border:1px solid rgba(18,226,154,.32);
  color:var(--brand);
  font-weight:700;
  font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.step h3{font-size:1.05rem;font-weight:600;margin-bottom:8px}
.step p{font-size:.9rem;margin:0;color:var(--text-2)}
/* ---------- checklist ---------- */
.check-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);
  gap:24px;
  align-items:start;
}
.stat-stack{display:grid;gap:16px}
.stat{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px;
  box-shadow:var(--sh-card);
  transition:border-color .25s var(--ease);
}
.stat:hover{border-color:rgba(18,226,154,.3)}
.stat b{
  display:block;
  font-size:2rem;
  font-weight:800;
  line-height:1.15;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.stat span{
  font-size:.815rem;
  letter-spacing:.04em;
  color:var(--text-3);
}
.check-list{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:12px 24px;
  box-shadow:var(--sh-card);
}
.check-list li{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:18px 0;
  border-bottom:1px solid var(--line);
}
.check-list li:last-child{border-bottom:0}
.check-list i{
  color:var(--brand);
  font-size:.9rem;
  margin-top:.45em;
  flex-shrink:0;
}
.check-list strong{
  display:block;
  font-size:1rem;
  font-weight:600;
  color:var(--text-1);
  margin-bottom:4px;
}
.check-list span{font-size:.9rem;color:var(--text-2)}
/* ---------- faq ---------- */
.faq{max-width:900px}
.faq .accordion-item{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-img);
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--sh-card);
}
.faq .accordion-item:last-child{margin-bottom:0}
.faq .accordion-button{
  position:relative;
  background:transparent;
  color:var(--text-1);
  font-size:1.05rem;
  font-weight:600;
  padding:18px 20px 18px 24px;
  box-shadow:none;
  gap:16px;
}
.faq .accordion-button::before{
  content:"";
  position:absolute;
  left:0;top:16px;bottom:16px;
  width:3px;
  border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 12px rgba(18,226,154,.8);
  opacity:0;
  transition:opacity .22s var(--ease);
}
.faq .accordion-button:not(.collapsed)::before{opacity:1}
.faq .accordion-button:not(.collapsed){
  background:var(--brand-soft);
  color:var(--brand);
}
.faq .accordion-button::after{
  content:"▾";
  background-image:none;
  width:auto;
  height:auto;
  font-size:1rem;
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transform:rotate(0deg);
  transition:transform .25s var(--ease);
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.faq .accordion-body{
  padding:0 24px 20px;
  font-size:.95rem;
  color:var(--text-2);
  line-height:1.85;
}
/* ---------- related links ---------- */
.rel-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
}
.rel-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:18px 20px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  color:var(--text-1);
  font-size:.95rem;
  font-weight:600;
  transition:all .22s var(--ease);
}
.rel-link i{color:var(--brand);transition:transform .22s var(--ease)}
.rel-link:hover{
  border-color:rgba(18,226,154,.4);
  background:var(--brand-soft);
  color:var(--text-1);
  transform:translateY(-3px);
}
.rel-link:hover i{transform:translateX(4px)}
/* ---------- share band ---------- */
.share-band{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:32px;
  border-radius:var(--r-card);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  box-shadow:var(--sh-card);
  position:relative;
  overflow:hidden;
}
.share-band::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,226,154,.5),transparent);
}
.share-band h2{font-size:1.35rem;font-weight:700;margin-bottom:8px}
.share-band p{margin:0;font-size:.925rem;color:var(--text-2)}
.share-actions{display:flex;flex-wrap:wrap;gap:12px}
/* ---------- footer ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg-1);
  padding:72px 0 32px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));
  gap:32px;
}
.footer-col h4{
  font-size:.95rem;
  font-weight:700;
  margin-bottom:16px;
  color:var(--text-1);
}
.footer-col p{
  font-size:.9rem;
  color:var(--text-2);
  max-width:34em;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-links a{
  font-size:.9rem;
  color:var(--text-2);
  text-decoration:none;
}
.footer-links a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:48px;
  padding-top:24px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:.815rem;
  color:var(--text-3);
  letter-spacing:.02em;
}
/* ---------- offcanvas ---------- */
.mobile-nav{
  background:var(--bg-1);
  color:var(--text-1);
  border-left:1px solid var(--line);
  width:320px;
}
.mobile-nav .offcanvas-header{
  border-bottom:1px solid var(--line);
  padding:18px 20px;
}
.mobile-nav .offcanvas-body{
  display:flex;
  flex-direction:column;
  gap:20px;
  padding:20px;
}
.mobile-links{display:flex;flex-direction:column;gap:4px}
.mobile-links a{
  display:flex;
  align-items:center;
  min-height:44px;
  padding:0 12px;
  border-radius:var(--r-sm);
  color:var(--text-2);
  font-size:.95rem;
}
.mobile-links a:hover{background:var(--brand-soft);color:var(--brand)}
.mobile-links a.active{color:var(--brand);background:var(--brand-soft);font-weight:600}
/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .container{max-width:960px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .check-layout{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:991.98px){
  .section{padding:64px 0}
  .page-head{padding:24px 0 56px}
  .site-header .header-inner{gap:12px}
}
@media (max-width:767.98px){
  .container{max-width:100%;padding-left:16px;padding-right:16px}
  .section{padding:56px 0}
  .page-head{padding:16px 0 48px}
  .page-head h1{font-size:clamp(1.85rem,7vw,2.3rem)}
  .page-head .lead{font-size:.98rem}
  .head-actions{flex-direction:column;align-items:stretch}
  .head-actions .btn{width:100%;text-align:center}
  .head-metrics{gap:24px;margin-top:32px;padding-top:24px}
  .head-metrics .m b{font-size:1.35rem}
  .grid-3,.steps{grid-template-columns:minmax(0,1fr)}
  .rel-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .share-band{padding:24px}
  .share-actions{width:100%}
  .share-actions .btn{width:100%}
  .filter-row{gap:8px}
  .chip{height:36px;padding:0 14px;font-size:.82rem}
  .section-head-row{align-items:flex-start}
  .mini-cover{height:168px}
}

/* roulang page: category4 */
:root{
  --bg-0:#06110F; --bg-1:#0A1A18; --bg-2:#0F2320;
  --brand:#12E29A; --brand-hi:#0FC98A; --brand-soft:rgba(18,226,154,.14);
  --accent:#FFB43C; --info:#7DE2FF;
  --text-1:#EAF5F2; --text-2:#A8BFBA; --text-3:#6F8783;
  --line:rgba(255,255,255,.08); --glass:rgba(255,255,255,.045);
  --r-card:18px; --r-img:14px; --r-pill:999px; --r-input:12px; --r-sm:10px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9);
  --shadow-hover:0 12px 40px -18px rgba(18,226,154,.32);
  --font:-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-primary:#12E29A;
  --bs-body-bg:#06110F;
  --bs-body-color:#EAF5F2;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:18px;
  --bs-border-radius-sm:10px;
  --bs-border-radius-lg:18px;
  --bs-link-color:#12E29A;
  --bs-link-hover-color:#0FC98A;
  --bs-font-sans-serif:var(--font);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font);background:var(--bg-0);color:var(--text-1);
  font-size:1rem;line-height:1.85;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-hi)}
a:focus-visible,button:focus-visible,input:focus-visible,.accordion-button:focus-visible{
  outline:2px solid rgba(18,226,154,.6);outline-offset:2px
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--text-1)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:96px 0}
.section--tight{padding:64px 0}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:32px}
.kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:.75rem;letter-spacing:.18em;
  text-transform:uppercase;color:var(--brand);font-weight:700;margin-bottom:16px
}
.kicker::before{
  content:"";width:8px;height:8px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 12px 2px rgba(18,226,154,.7)
}
h1{font-size:clamp(2.2rem,4.2vw,3.4rem);font-weight:800;letter-spacing:-.02em;line-height:1.2}
h2{font-size:clamp(1.55rem,2.4vw,2.1rem);font-weight:700}
h3{font-size:1.25rem;font-weight:600}
h4{font-size:1.05rem;font-weight:600}
.lead{color:var(--text-2);font-size:1.02rem;max-width:42em}
.meta{font-size:.815rem;letter-spacing:.04em;color:var(--text-3);font-variant-numeric:tabular-nums}

/* header */
.site-header{
  position:sticky;top:0;z-index:1030;background:rgba(6,17,15,.72);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line)
}
.header-inner{height:68px;display:flex;align-items:center;gap:24px;justify-content:space-between}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-1)}
.brand:hover{color:var(--text-1)}
.brand-mark{
  width:28px;height:28px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#12E29A,#7BE8C0);color:#04140F;font-weight:800;font-size:.9rem;
  box-shadow:0 0 18px -4px rgba(18,226,154,.75)
}
.brand-text{font-size:1.05rem;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.nav-links{gap:4px;align-items:center}
.nav-links .nav-link{
  position:relative;color:var(--text-2);font-size:.925rem;padding:8px 12px;border-radius:var(--r-sm);
  background:transparent;transition:color .2s ease
}
.nav-links .nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .25s ease
}
.nav-links .nav-link:hover,.nav-links .nav-link:focus-visible{color:var(--brand)}
.nav-links .nav-link:hover::after,.nav-links .nav-link:focus-visible::after{transform:scaleX(1)}
.nav-links .nav-link.active{color:var(--text-1)}
.nav-links .nav-link.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.command-search{
  display:flex;align-items:center;gap:8px;width:250px;height:40px;padding:0 12px;
  border:1px solid var(--line);border-radius:var(--r-pill);background:rgba(255,255,255,.03);
  transition:border-color .2s ease,box-shadow .2s ease
}
.command-search:focus-within{border-color:rgba(18,226,154,.55);box-shadow:0 0 0 4px rgba(18,226,154,.12)}
.command-search svg{flex:0 0 auto;color:var(--text-3)}
.command-search input{
  border:0;background:transparent;color:var(--text-1);font-size:.9rem;outline:none;width:100%;
  font-family:inherit
}
.command-search input::placeholder{color:var(--text-3)}
.kbd{
  font-size:.68rem;color:var(--text-3);border:1px solid var(--line);border-radius:6px;
  padding:1px 6px;white-space:nowrap;font-variant-numeric:tabular-nums
}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);border:1px solid var(--line);background:transparent;
  color:var(--text-2);display:inline-flex;align-items:center;justify-content:center;transition:all .2s ease
}
.icon-btn:hover{color:var(--brand);border-color:rgba(18,226,154,.45);background:var(--brand-soft)}
.hamburger{
  width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);background:transparent;
  color:var(--text-1);display:inline-flex;align-items:center;justify-content:center
}
.hamburger:hover{color:var(--brand);border-color:rgba(18,226,154,.45)}

/* buttons */
.btn{
  font-family:inherit;font-size:.95rem;font-weight:700;border-radius:var(--r-pill);
  padding:12px 22px;border:1px solid transparent;transition:all .2s ease;line-height:1.4
}
.btn.btn-brand{
  background:linear-gradient(135deg,#12E29A,#7BE8C0);color:#04140F;border-color:transparent;
  box-shadow:0 0 24px -6px rgba(18,226,154,.7)
}
.btn.btn-brand:hover,.btn.btn-brand:focus-visible{
  color:#04140F;transform:translateY(-1px);filter:brightness(1.04);
  box-shadow:0 0 32px -4px rgba(18,226,154,.85)
}
.btn.btn-brand:active{transform:translateY(0);filter:brightness(.98)}
.btn.btn-ghost{
  background:transparent;color:var(--text-1);border-color:rgba(255,255,255,.18)
}
.btn.btn-ghost:hover,.btn.btn-ghost:focus-visible{
  color:var(--brand);border-color:rgba(18,226,154,.6);background:var(--brand-soft)
}
.btn.btn-ghost:active{transform:translateY(1px)}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn-text{
  color:var(--brand);font-weight:700;text-decoration:underline;text-underline-offset:4px;
  padding:4px 0;background:none;border:0
}
.btn-text:hover{color:var(--brand-hi);text-decoration:none}

/* page head */
.page-head{position:relative;overflow:hidden;padding:80px 0 72px;border-bottom:1px solid var(--line)}
.page-head .head-bg{
  position:absolute;inset:0;background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;opacity:.32
}
.page-head .head-veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,17,15,.78) 0%,rgba(6,17,15,.9) 55%,var(--bg-0) 100%)
}
.page-head .head-glow{
  position:absolute;top:-140px;right:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,226,154,.12),transparent 68%);pointer-events:none
}
.page-head .container{position:relative;z-index:2}
.page-head .lead{margin-top:20px;max-width:46em}
.page-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.head-facts{display:flex;flex-wrap:wrap;gap:40px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line)}
.fact{min-width:120px}
.fact b{display:block;font-size:1.6rem;font-weight:800;font-variant-numeric:tabular-nums;color:var(--brand)}
.fact span{font-size:.815rem;color:var(--text-3);letter-spacing:.04em}

/* breadcrumb */
.breadcrumb-bar{padding:20px 0 0}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.85rem;color:var(--text-3)}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:var(--brand);font-size:.75rem}
.crumbs .current{color:var(--text-1)}

/* zigzag */
.zz-list{display:flex;flex-direction:column;gap:8px}
.zz-item{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  padding:36px 0;border-bottom:1px solid var(--line)
}
.zz-item:last-child{border-bottom:0}
.zz-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
  background:var(--glass);box-shadow:var(--shadow-card);transition:border-color .25s ease,box-shadow .25s ease
}
.zz-media::after{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,226,154,.5),transparent)
}
.zz-media img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img)}
.zz-item:hover .zz-media{border-color:rgba(18,226,154,.35);box-shadow:var(--shadow-hover)}
.zz-num{
  position:absolute;top:12px;left:18px;z-index:2;font-size:2.1rem;font-weight:800;
  color:rgba(234,245,242,.72);font-variant-numeric:tabular-nums;text-shadow:0 3px 14px rgba(0,0,0,.7)
}
.zz-item:nth-child(even) .zz-media{order:2}
.zz-body h3{margin:16px 0 12px}
.zz-body p{color:var(--text-2);max-width:42em}
.tag{
  display:inline-flex;align-items:center;font-size:.75rem;letter-spacing:.06em;font-weight:700;
  color:var(--brand);background:var(--brand-soft);border:1px solid rgba(18,226,154,.28);
  border-radius:var(--r-pill);padding:4px 12px
}
.tag--accent{color:var(--accent);background:rgba(255,180,60,.12);border-color:rgba(255,180,60,.3)}
.tag--info{color:var(--info);background:rgba(125,226,255,.1);border-color:rgba(125,226,255,.28)}
.point-list{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.point-list li{position:relative;padding-left:22px;color:var(--text-2);font-size:.95rem}
.point-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px -2px rgba(18,226,154,.9)
}

/* table */
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--glass);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%)
}
table.data-table{width:100%;min-width:640px;border-collapse:collapse}
table.data-table thead th{
  background:rgba(18,226,154,.08);color:var(--text-1);font-size:.86rem;font-weight:700;
  letter-spacing:.04em;padding:16px 20px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap
}
table.data-table tbody td{
  padding:16px 20px;border-bottom:1px solid var(--line);color:var(--text-2);font-size:.94rem;vertical-align:top
}
table.data-table tbody tr:last-child td{border-bottom:0}
table.data-table tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
table.data-table tbody tr:hover{background:rgba(18,226,154,.06)}
table.data-table td b{color:var(--text-1);font-weight:600}

/* jump cards */
.jump-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.jump-card{
  display:flex;flex-direction:column;gap:10px;padding:24px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);color:var(--text-1);
  backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
  position:relative;overflow:hidden;transition:all .25s ease;box-shadow:var(--shadow-card)
}
.jump-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,226,154,.5),transparent)
}
.jump-card:hover{color:var(--text-1);transform:translateY(-4px);border-color:rgba(18,226,154,.35);box-shadow:var(--shadow-hover)}
.jump-card h3{font-size:1.05rem}
.jump-card p{font-size:.9rem;color:var(--text-2)}
.jump-card .arrow{color:var(--brand);font-weight:700;font-size:.9rem;margin-top:auto;transition:transform .2s ease}
.jump-card:hover .arrow{transform:translateX(4px)}

/* faq */
.faq-wrap{max-width:900px}
.accordion-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-img);margin-bottom:12px;
  overflow:hidden;backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%)
}
.accordion-item:last-child{margin-bottom:0}
.accordion-button{
  background:transparent;color:var(--text-1);font-size:1.05rem;font-weight:600;font-family:inherit;
  padding:20px 24px;box-shadow:none;border:0;gap:16px
}
.accordion-button:not(.collapsed){
  color:var(--brand);background:rgba(18,226,154,.06);box-shadow:inset 3px 0 0 0 var(--brand)
}
.accordion-button:focus{box-shadow:inset 3px 0 0 0 var(--brand)}
.accordion-button:focus-visible{outline:2px solid rgba(18,226,154,.6);outline-offset:-2px}
.accordion-button::after{
  background-image:none;content:"";width:10px;height:10px;margin-left:auto;flex:0 0 auto;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform .25s ease
}
.accordion-button:not(.collapsed)::after{transform:rotate(-135deg)}
.accordion-body{padding:0 24px 22px 24px;color:var(--text-2);font-size:.95rem;line-height:1.85}

/* cta band */
.band{
  position:relative;overflow:hidden;border-radius:var(--r-card);border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(18,226,154,.1),rgba(255,255,255,.03));
  padding:40px;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between
}
.band h2{font-size:clamp(1.3rem,2vw,1.7rem)}
.band p{color:var(--text-2);margin-top:10px;max-width:44em;font-size:.96rem}
.band-actions{display:flex;flex-wrap:wrap;gap:12px}

/* footer */
.site-footer{position:relative;overflow:hidden;background:var(--bg-1);border-top:1px solid var(--line);margin-top:0}
.site-footer::before{
  content:"";position:absolute;left:-160px;bottom:-200px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,226,154,.12),transparent 70%);pointer-events:none
}
.site-footer .container{position:relative;z-index:2}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding:64px 0 40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{font-size:1.05rem;font-weight:700;color:var(--text-1)}
.footer-col p{color:var(--text-2);font-size:.92rem;max-width:34em}
.footer-col h4{font-size:.95rem;margin-bottom:16px;color:var(--text-1)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:var(--text-2);font-size:.92rem}
.footer-links a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding:20px 0 32px;border-top:1px solid var(--line);color:var(--text-3);font-size:.82rem
}

/* offcanvas */
.offcanvas.offcanvas-end{
  background:var(--bg-1);border-left:1px solid var(--line);width:min(330px,88vw);color:var(--text-1)
}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.offcanvas-title{font-size:1rem;font-weight:700}
.offcanvas-body{padding:20px;display:flex;flex-direction:column;gap:20px}
.mobile-nav{display:flex;flex-direction:column;gap:6px}
.mobile-nav a{
  color:var(--text-2);padding:12px 14px;border-radius:var(--r-sm);font-size:.95rem;
  border:1px solid transparent;min-height:44px;display:flex;align-items:center
}
.mobile-nav a:hover{color:var(--brand);background:var(--brand-soft);border-color:rgba(18,226,154,.3)}
.mobile-nav a.active{color:var(--text-1);border-color:var(--line);background:rgba(255,255,255,.04)}
.offcanvas .command-search{width:100%}
.offcanvas .btn{width:100%}
.btn-close-custom{
  background:transparent;border:1px solid var(--line);color:var(--text-2);border-radius:var(--r-sm);
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center
}
.btn-close-custom:hover{color:var(--brand);border-color:rgba(18,226,154,.45)}

@media (max-width:1199.98px){
  .container{max-width:960px}
  .jump-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991.98px){
  .section{padding:72px 0}
  .zz-item{grid-template-columns:1fr;gap:24px;padding:28px 0}
  .zz-item:nth-child(even) .zz-media{order:0}
  .page-head{padding:60px 0 52px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 32px}
  .head-facts{gap:28px}
}
@media (max-width:767.98px){
  .section{padding:56px 0}
  .container{padding-left:16px;padding-right:16px}
  h1{font-size:clamp(1.9rem,7vw,2.4rem)}
  .page-actions .btn{width:100%;text-align:center}
  .page-head{padding:48px 0 44px}
  .head-facts{gap:20px;margin-top:32px;padding-top:22px}
  .fact b{font-size:1.35rem}
  .band{padding:28px 22px}
  .band-actions{width:100%}
  .band-actions .btn{width:100%;text-align:center}
  .accordion-button{font-size:1rem;padding:18px 18px}
  .accordion-body{padding:0 18px 20px 18px}
  .jump-grid{grid-template-columns:1fr;gap:16px}
  .header-inner{height:62px;gap:12px}
  .brand-text{font-size:.98rem}
}
@media (max-width:519.98px){
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}