/* roulang page: index */
:root{
  --ink-900:#0B0F12;
  --ink-700:#232A2F;
  --ink-500:#5B666D;
  --ink-300:#9AA4A9;
  --line:#E3E6E4;
  --line-strong:#CFD5D2;
  --paper:#F6F7F5;
  --surface:#FFFFFF;
  --ink-fill:#0B0F12;
  --brand:#00C48C;
  --brand-hover:#00A878;
  --brand-soft:rgba(0,196,140,.10);
  --brand-ink:#062B22;
  --accent:#FF7A1A;
  --ok:#12A150;
  --warn:#E0A100;
  --err:#DC2C2C;
  --on-dark:#FFFFFF;
  --on-dark-soft:rgba(255,255,255,.72);
  --dark-line:rgba(255,255,255,.08);
  --shadow-1:0 1px 2px rgba(11,15,18,.06);
  --shadow-2:0 12px 32px rgba(11,15,18,.08);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Space Grotesk","Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --container:1200px;
  --container-wide:1360px;
  --nav-h:68px;
  --ease:cubic-bezier(.2,.7,.2,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-900);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
svg{display:block}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.container--wide{max-width:var(--container-wide)}

/* ---------- 顶部公告条 ---------- */
.ticker{
  background:var(--ink-fill);
  color:var(--on-dark-soft);
  font-size:13px;
  letter-spacing:.01em;
  border-bottom:1px solid var(--dark-line);
}
.ticker__inner{
  min-height:38px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.ticker__text{margin:0}
.ticker__link{
  color:var(--brand);
  font-weight:500;
  display:inline-flex;
  align-items:center;
  gap:6px;
  white-space:nowrap;
  transition:color .2s var(--ease);
}
.ticker__link span{transition:transform .2s var(--ease)}
.ticker__link:hover{color:#4ce0b4}
.ticker__link:hover span{transform:translateX(4px)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(246,247,245,.92);
  backdrop-filter:saturate(150%) blur(12px);
  -webkit-backdrop-filter:saturate(150%) blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header.is-stuck{
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-1);
}
.nav-inner{
  height:var(--nav-h);
  display:flex;
  align-items:center;
  gap:24px;
  transition:height .2s var(--ease);
}
.site-header.is-stuck .nav-inner{height:60px}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand__mark{
  width:34px;height:34px;
  border-radius:10px;
  background:var(--ink-fill);
  display:grid;place-items:center;
  flex:0 0 auto;
}
.brand__mark svg{width:18px;height:18px}
.brand__text{
  font-weight:800;
  font-size:16px;
  letter-spacing:-.01em;
  color:var(--ink-900);
  white-space:nowrap;
}
.nav-main{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  padding:8px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-700);
  border-radius:var(--r-sm);
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  background:var(--brand);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--ink-900);background:rgba(11,15,18,.035)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-hover);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:14px;
}
.command-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:240px;
  height:42px;
  padding:0 12px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:width .26s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.command-search svg{width:16px;height:16px;color:var(--ink-300);flex:0 0 auto}
.command-search input{
  flex:1 1 auto;
  min-width:0;
  border:0;
  outline:none;
  background:transparent;
  font-size:14px;
  color:var(--ink-900);
}
.command-search input::placeholder{color:var(--ink-300)}
.command-search kbd{
  flex:0 0 auto;
  font-family:var(--font-num);
  font-size:11px;
  color:var(--ink-500);
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:6px;
  padding:2px 6px;
  line-height:1.4;
}
.command-search:focus-within{
  width:380px;
  border-color:var(--brand);
  box-shadow:0 0 0 4px var(--brand-soft);
}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  align-items:center;
  justify-content:center;
  background:var(--surface);
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:var(--ink-900);
  border-radius:2px;
  position:relative;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;left:0;
  width:18px;height:2px;
  background:var(--ink-900);
  border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(11,15,18,.44);
  z-index:90;
  opacity:0;
  transition:opacity .24s var(--ease);
}
.drawer-mask.is-open{opacity:1}
.drawer{
  position:fixed;
  top:0;right:0;
  width:86%;
  max-width:380px;
  height:100%;
  background:var(--paper);
  z-index:95;
  transform:translateX(100%);
  transition:transform .3s var(--ease);
  display:flex;
  flex-direction:column;
  gap:20px;
  padding:22px 20px 28px;
  overflow-y:auto;
  border-left:1px solid var(--line);
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer__brand{font-weight:800;font-size:15px}
.drawer__close{
  width:38px;height:38px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  font-size:20px;
  line-height:1;
  color:var(--ink-700);
  background:var(--surface);
}
.drawer .command-search{width:100%}
.drawer__nav{display:flex;flex-direction:column;gap:4px}
.drawer__nav a{
  padding:13px 14px;
  border-radius:var(--r-sm);
  font-size:16px;
  font-weight:500;
  color:var(--ink-700);
  border:1px solid transparent;
}
.drawer__nav a.is-active{
  color:var(--brand-hover);
  background:var(--brand-soft);
  border-color:rgba(0,196,140,.24);
  font-weight:700;
}

/* ---------- 按钮体系 ---------- */
.btn{
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:700;
  letter-spacing:.01em;
  border:1px solid transparent;
  overflow:hidden;
  cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  white-space:nowrap;
}
.btn::after{
  content:"";
  position:absolute;
  top:0;left:-120%;
  width:60%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.4),transparent);
  transition:left .32s var(--ease);
}
.btn:hover::after{left:130%}
.btn--primary{background:var(--brand);color:#04160F}
.btn--primary:hover{background:var(--brand-hover);transform:translateY(-1px);box-shadow:0 10px 24px rgba(0,196,140,.28)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--ink-900)}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand-hover)}
.btn--dark{background:transparent;border-color:rgba(255,255,255,.28);color:#fff}
.btn--dark:hover{border-color:var(--brand);color:var(--brand)}
.btn--text{
  height:auto;
  padding:0;
  border-radius:0;
  font-size:15px;
  font-weight:700;
  color:var(--brand-hover);
  border-bottom:1px solid transparent;
}
.btn--text::after{display:none}
.btn--text:hover{border-bottom-color:var(--brand-hover)}
.btn--sm{height:42px;padding:0 20px;font-size:14px}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn.is-loading{pointer-events:none;opacity:.7}
.btn.is-loading .btn__spinner{
  width:15px;height:15px;
  border:2px solid rgba(4,22,15,.3);
  border-top-color:#04160F;
  border-radius:50%;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 区块通用 ---------- */
.section{padding:104px 0}
.section--tight{padding:80px 0}
.section__head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:28px;
  margin-bottom:48px;
}
.section__title{
  font-size:clamp(24px,3vw,36px);
  font-weight:700;
  letter-spacing:-.02em;
  line-height:1.25;
}
.section__desc{
  margin-top:10px;
  color:var(--ink-500);
  font-size:15px;
  max-width:56ch;
}
.section__link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:700;
  color:var(--brand-hover);
  white-space:nowrap;
}
.section__link span{transition:transform .2s var(--ease)}
.section__link:hover span{transform:translateX(4px)}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--brand-hover);
  background:var(--brand-soft);
  border-radius:var(--r-pill);
  padding:6px 14px;
}
.section--dark{
  background:var(--ink-fill);
  color:var(--on-dark);
}
.section--dark .section__title{color:var(--on-dark)}
.section--dark .section__desc{color:var(--on-dark-soft)}

/* ---------- Hero ---------- */
.kv{
  background:var(--ink-fill);
  color:var(--on-dark);
  position:relative;
  overflow:hidden;
}
.kv::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.9;
  pointer-events:none;
}
.kv__inner{
  position:relative;
  display:grid;
  grid-template-columns:1.02fr .98fr;
  gap:64px;
  align-items:center;
  padding:96px 0 104px;
}
.kv__eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--brand);
  background:rgba(0,196,140,.12);
  border:1px solid rgba(0,196,140,.28);
  border-radius:var(--r-pill);
  padding:6px 14px;
}
.kv__title{
  margin-top:22px;
  font-size:clamp(30px,5vw,54px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.15;
  color:var(--on-dark);
}
.kv__title em{font-style:normal;color:var(--brand)}
.kv__sub{
  margin-top:20px;
  font-size:17px;
  line-height:1.75;
  color:var(--on-dark-soft);
  max-width:40ch;
}
.kv__cta{
  margin-top:34px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.kv__stats{
  margin-top:46px;
  padding-top:26px;
  border-top:1px solid var(--dark-line);
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.kv__stat-num{
  font-family:var(--font-num);
  font-size:28px;
  font-weight:700;
  color:var(--brand);
  letter-spacing:-.02em;
  line-height:1.2;
}
.kv__stat-label{
  margin-top:4px;
  font-size:13px;
  color:var(--on-dark-soft);
}
.kv__visual{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  aspect-ratio:16/9;
  border:1px solid var(--dark-line);
  background:linear-gradient(140deg,rgba(0,196,140,.16),rgba(11,15,18,.6));
}
.kv__visual img{width:100%;height:100%;object-fit:cover}
.kv__visual::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,15,18,0) 40%,rgba(11,15,18,.55));
}
.kv__card{
  position:absolute;
  left:20px;bottom:20px;right:20px;
  background:rgba(11,15,18,.78);
  border:1px solid var(--dark-line);
  border-radius:var(--r-md);
  padding:16px 18px;
  backdrop-filter:blur(6px);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.kv__card-title{font-size:14px;font-weight:700;color:#fff}
.kv__card-desc{font-size:12.5px;color:var(--on-dark-soft);margin-top:2px}
.kv__card-tag{
  flex:0 0 auto;
  font-size:11px;
  font-weight:700;
  letter-spacing:.06em;
  color:#fff;
  background:var(--accent);
  border-radius:var(--r-pill);
  padding:5px 12px;
}

/* ---------- 时间线 ---------- */
.flow-list{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  position:relative;
}
.flow-item{
  position:relative;
  padding:0 26px 0 0;
}
.flow-item::before{
  content:"";
  position:absolute;
  top:11px;left:24px;right:0;
  height:1px;
  border-top:1px dashed rgba(0,196,140,.4);
}
.flow-item:last-child::before{display:none}
.flow-dot{
  position:relative;
  width:22px;height:22px;
  border-radius:50%;
  border:1px solid rgba(0,196,140,.35);
  display:grid;place-items:center;
  background:var(--paper);
}
.flow-dot::after{
  content:"";
  width:8px;height:8px;
  border-radius:50%;
  background:var(--brand);
  transition:width .2s var(--ease),height .2s var(--ease);
}
.flow-item:hover .flow-dot::after{width:12px;height:12px}
.flow-num{
  display:block;
  margin-top:20px;
  font-family:var(--font-num);
  font-size:40px;
  font-weight:800;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1px var(--ink-300);
  letter-spacing:-.02em;
}
.flow-item:hover .flow-num{-webkit-text-stroke-color:var(--brand)}
.flow-name{
  margin-top:14px;
  font-size:19px;
  font-weight:700;
  letter-spacing:-.01em;
}
.flow-text{
  margin-top:8px;
  font-size:14.5px;
  color:var(--ink-500);
  max-width:30ch;
}
.flow-meta{
  margin-top:14px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--ink-700);
  background:var(--brand-soft);
  border-radius:var(--r-pill);
  padding:4px 12px;
}

/* ---------- 亮点矩阵 ---------- */
.feat-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
}
.feat-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:28px;
  box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.feat-card:hover{transform:translateY(-2px);border-color:var(--brand);box-shadow:var(--shadow-2)}
.feat-card:hover .feat-title{color:var(--brand-hover)}
.feat-card--a{grid-column:span 7}
.feat-card--b{grid-column:span 5}
.feat-card--c{grid-column:span 5}
.feat-card--d{grid-column:span 7}
.feat-card--wide{grid-column:span 12;display:grid;grid-template-columns:auto 1fr auto;gap:24px;align-items:center}
.feat-icon{
  width:44px;height:44px;
  display:grid;place-items:center;
  color:var(--brand-hover);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  margin-bottom:18px;
}
.feat-icon svg{width:22px;height:22px}
.feat-title{
  font-size:20px;
  font-weight:700;
  letter-spacing:-.01em;
  transition:color .2s var(--ease);
}
.feat-text{
  margin-top:10px;
  font-size:14.5px;
  color:var(--ink-500);
  max-width:46ch;
}
.feat-card--wide .feat-icon{margin-bottom:0}

/* ---------- 通道对比 ---------- */
.plan-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  align-items:stretch;
}
.plan-card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:32px 28px 28px;
  display:flex;
  flex-direction:column;
  box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.plan-card:hover{transform:translateY(-2px);border-color:var(--brand);box-shadow:var(--shadow-2)}
.plan-card.is-recommend{
  border:2px solid var(--brand);
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
}
.plan-badge{
  position:absolute;
  top:-12px;right:20px;
  font-size:11px;
  font-weight:700;
  letter-spacing:.06em;
  color:#fff;
  background:var(--accent);
  border-radius:var(--r-pill);
  padding:5px 12px;
}
.plan-name{font-size:20px;font-weight:700;letter-spacing:-.01em}
.plan-note{margin-top:8px;font-size:14px;color:var(--ink-500)}
.plan-price{
  margin-top:20px;
  font-family:var(--font-num);
  font-size:26px;
  font-weight:700;
  letter-spacing:-.02em;
}
.plan-price small{font-family:var(--font-cn);font-size:13px;font-weight:500;color:var(--ink-500);margin-left:6px}
.plan-list{margin-top:22px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.plan-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-700);line-height:1.6}
.plan-list svg{width:16px;height:16px;flex:0 0 auto;margin-top:5px;color:var(--brand)}
.plan-card .btn{margin-top:26px}

/* ---------- 图文交替 ---------- */
.split{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:56px;
  align-items:center;
}
.split + .split{margin-top:88px}
.split--reverse{grid-template-columns:5fr 7fr}
.split--reverse .split__media{order:2}
.split--reverse .split__body{order:1}
.split__media{
  border-radius:var(--r-md);
  overflow:hidden;
  background:var(--brand-soft);
  aspect-ratio:16/10;
}
.split__media img{width:100%;height:100%;object-fit:cover}
.split__title{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:700;
  letter-spacing:-.02em;
  line-height:1.3;
}
.split__text{
  margin-top:16px;
  color:var(--ink-500);
  font-size:15.5px;
  max-width:44ch;
}
.split__points{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.split__points li{
  display:flex;
  gap:10px;
  font-size:14.5px;
  color:var(--ink-700);
}
.split__points svg{width:16px;height:16px;flex:0 0 auto;margin-top:5px;color:var(--brand)}
.split__link{margin-top:26px;display:inline-flex}

/* ---------- 指标条 ---------- */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--dark-line);
  border:1px solid var(--dark-line);
  border-radius:var(--r-md);
  overflow:hidden;
}
.metric{
  background:var(--ink-fill);
  padding:34px 26px;
}
.metric__num{
  font-family:var(--font-num);
  font-size:34px;
  font-weight:700;
  color:var(--brand);
  letter-spacing:-.02em;
  line-height:1.1;
}
.metric__label{margin-top:8px;font-size:14px;color:var(--on-dark-soft)}
.metric__quote{
  margin-top:26px;
  padding-top:22px;
  border-top:1px solid var(--dark-line);
  font-size:15px;
  color:var(--on-dark-soft);
}
.metric--quote{grid-column:span 4}

/* ---------- 资讯卡片 ---------- */
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.news-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.news-card:hover{transform:translateY(-2px);border-color:var(--brand);box-shadow:var(--shadow-2)}
.news-card:hover .news-card__title{color:var(--brand-hover)}
.news-card__link{
  display:block;
  height:100%;
}
.news-card__cover{
  display:block;
  aspect-ratio:3/2;
  overflow:hidden;
  background:var(--brand-soft);
}
.news-card__cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.news-card:hover .news-card__cover img{transform:scale(1.03)}
.news-card__body{display:block;padding:22px}
.news-card__tag{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--brand-hover);
  background:var(--brand-soft);
  border-radius:var(--r-pill);
  padding:4px 12px;
}
.news-card__title{
  margin-top:14px;
  font-size:18px;
  font-weight:700;
  line-height:1.45;
  letter-spacing:-.01em;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color .2s var(--ease);
}
.news-card__desc{
  margin-top:10px;
  font-size:14px;
  color:var(--ink-500);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card__meta{
  margin-top:18px;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--ink-300);
  font-family:var(--font-num);
}
.news-empty{
  border:1px dashed var(--line-strong);
  border-radius:var(--r-md);
  background:var(--surface);
  padding:44px 28px;
  text-align:center;
  max-height:320px;
}
.news-empty svg{width:44px;height:44px;color:var(--ink-300);margin:0 auto 16px}
.news-empty p{color:var(--ink-500);font-size:15px}
.news-empty .btn{margin-top:18px}

.skeleton{
  background:linear-gradient(90deg,var(--brand-soft),rgba(0,196,140,.04),var(--brand-soft));
  background-size:200% 100%;
  animation:breathe 1.4s ease-in-out infinite;
  border-radius:var(--r-sm);
  min-height:16px;
}
@keyframes breathe{0%{background-position:0% 0}100%{background-position:-200% 0}}
.state-error{
  border:2px solid var(--err);
  border-radius:var(--r-md);
  padding:24px;
  background:#FFF6F6;
  color:var(--err);
  font-size:14.5px;
}

/* ---------- FAQ ---------- */
.faq-list{
  border-top:1px solid var(--line);
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  text-align:left;
  padding:24px 0;
  font-size:17px;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink-900);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand-hover)}
.faq-icon{
  position:relative;
  flex:0 0 auto;
  width:22px;height:22px;
  border:1px solid var(--line-strong);
  border-radius:50%;
  transition:transform .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  top:50%;left:50%;
  background:var(--ink-700);
  transform:translate(-50%,-50%);
  border-radius:2px;
}
.faq-icon::before{width:10px;height:1.5px}
.faq-icon::after{width:1.5px;height:10px}
.faq-item.is-open .faq-icon{transform:rotate(45deg);border-color:var(--brand);background:var(--brand-soft)}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:var(--brand-hover)}
.faq-a{
  max-height:0;
  overflow:hidden;
  opacity:0;
  transition:max-height .3s var(--ease),opacity .24s var(--ease);
}
.faq-item.is-open .faq-a{opacity:1}
.faq-a p{
  padding-bottom:22px;
  color:var(--ink-500);
  font-size:15px;
  max-width:78ch;
}

/* ---------- CTA 大区块 ---------- */
.cta-block{
  background:var(--ink-fill);
  color:var(--on-dark);
  text-align:center;
  padding:112px 0;
  position:relative;
  overflow:hidden;
}
.cta-block::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:72px 72px;
}
.cta-block__inner{position:relative;max-width:720px;margin:0 auto}
.cta-block h2{
  font-size:clamp(26px,3.4vw,40px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.25;
}
.cta-block p{
  margin-top:18px;
  color:var(--on-dark-soft);
  font-size:16px;
}
.cta-block__actions{
  margin-top:36px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  justify-content:center;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-fill);
  color:var(--on-dark-soft);
  padding:76px 0 0;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:44px;
  padding-bottom:56px;
}
.foot-col--brand .brand__text{color:#fff}
.foot-col--brand .brand__mark{background:var(--brand)}
.foot-desc{
  margin-top:18px;
  font-size:14px;
  line-height:1.85;
  color:var(--on-dark-soft);
  max-width:36ch;
}
.foot-title{
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--ink-300);
  text-transform:uppercase;
}
.foot-links{margin-top:18px;display:flex;flex-direction:column;gap:11px}
.foot-links a{
  font-size:14.5px;
  color:var(--on-dark-soft);
  border-bottom:2px solid transparent;
  padding-bottom:1px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
  display:inline-block;
}
.foot-links a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.foot-contact{margin-top:18px;font-size:14.5px;line-height:1.9;color:var(--on-dark-soft)}
.foot-contact strong{color:#fff;font-weight:700}
.foot-bottom{
  border-top:1px solid var(--dark-line);
  padding:22px 0 26px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--ink-300);
}

/* ---------- 进入视口动效 ---------- */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .4s var(--ease),transform .4s var(--ease);
}
.reveal.is-in{opacity:1;transform:none}
.feat-grid .reveal:nth-child(2){transition-delay:60ms}
.feat-grid .reveal:nth-child(3){transition-delay:120ms}
.feat-grid .reveal:nth-child(4){transition-delay:180ms}
.news-grid .reveal:nth-child(2){transition-delay:60ms}
.news-grid .reveal:nth-child(3){transition-delay:120ms}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .command-search{width:200px}
  .command-search:focus-within{width:280px}
  .kv__inner{gap:44px}
  .split{gap:40px}
  .plan-card{padding:28px 22px 24px}
  .plan-name{font-size:18px}
}

@media (max-width:1023px){
  .nav-main,.nav-actions .command-search{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:76px 0}
  .section--tight{padding:64px 0}
  .kv__inner{grid-template-columns:1fr;gap:40px;padding:72px 0 80px}
  .kv__visual{order:-1;aspect-ratio:16/9}
  .kv__sub{max-width:none}
  .flow-list{grid-template-columns:repeat(2,1fr);gap:44px 0}
  .flow-item:nth-child(2)::before{display:none}
  .feat-card--a,.feat-card--b,.feat-card--c,.feat-card--d{grid-column:span 12}
  .feat-card--wide{grid-template-columns:auto 1fr;align-items:start}
  .feat-card--wide .btn{grid-column:span 2}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .split,.split--reverse{grid-template-columns:1fr;gap:32px}
  .split--reverse .split__media{order:0}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .metric--quote{grid-column:span 2}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
}

@media (max-width:767px){
  body{font-size:15.5px}
  .ticker{display:none}
  .section{padding:56px 0}
  .section--tight{padding:52px 0}
  .section__head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px}
  .kv__stats{grid-template-columns:1fr 1fr;gap:16px}
  .kv__stat-num{font-size:24px}
  .kv__cta .btn{width:100%}
  .flow-list{grid-template-columns:1fr;gap:36px 0}
  .flow-item{padding-right:0}
  .flow-item::before{display:none}
  .feat-card--wide{grid-template-columns:1fr;gap:16px}
  .feat-card--wide .btn{grid-column:span 1}
  .plan-grid{grid-template-columns:1fr}
  .plan-card.is-recommend{order:-1;transform:none}
  .news-grid{grid-template-columns:1fr}
  .news-card__desc{-webkit-line-clamp:2}
  .metrics{grid-template-columns:1fr}
  .metric--quote{grid-column:span 1}
  .cta-block{padding:76px 0}
  .cta-block__actions .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .faq-q{font-size:16px;padding:20px 0}
  .drawer{width:92%}
}

@media (max-width:400px){
  .kv__title{font-size:26px}
  .kv__visual{aspect-ratio:4/3}
  .kv__card{display:none}
  .brand__text{font-size:14px}
  .btn{height:46px;padding:0 20px}
}

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

/* roulang page: article */
:root{
  --ink-900:#0B0F12;
  --ink-700:#232A2F;
  --ink-500:#5B666D;
  --ink-300:#9AA4A9;
  --line:#E3E6E4;
  --line-strong:#CFD5D2;
  --paper:#F6F7F5;
  --surface:#FFFFFF;
  --ink-fill:#0B0F12;
  --brand:#00C48C;
  --brand-hover:#00A878;
  --brand-soft:rgba(0,196,140,.10);
  --brand-ink:#04160F;
  --accent:#FF7A1A;
  --ok:#12A150;
  --warn:#E0A100;
  --err:#DC2C2C;
  --shadow-1:0 1px 2px rgba(11,15,18,.06);
  --shadow-2:0 12px 32px rgba(11,15,18,.08);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --w:1200px;
  --w-wide:1360px;
  --dur:.26s;
  --ease:cubic-bezier(.2,.7,.2,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-700);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:3px;
  border-radius:6px;
}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);line-height:1.28;letter-spacing:-.01em;font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
input{font:inherit;color:inherit;}
::selection{background:var(--brand-soft);color:var(--ink-900);}

.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 24px;}
.container--wide{max-width:var(--w-wide);}

/* ---------- 顶部公告条 ---------- */
.topbar{
  background:var(--ink-fill);
  color:rgba(255,255,255,.86);
  font-size:13px;
  letter-spacing:.02em;
}
.topbar__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:38px;
}
.topbar__badge{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--brand);
  font-weight:700;
}
.topbar__badge::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 0 3px var(--brand-soft);
}
.topbar a{color:rgba(255,255,255,.9);border-bottom:1px solid rgba(255,255,255,.28);}
.topbar a:hover{color:var(--brand);border-color:var(--brand);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,247,245,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(150%) blur(12px);
  transition:background var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.site-header.is-stuck{
  background:rgba(246,247,245,.86);
  box-shadow:var(--shadow-1);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  height:68px;
  transition:height var(--dur) var(--ease);
}
.site-header.is-stuck .header-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand__mark{
  width:34px;height:34px;border-radius:11px;
  background:var(--brand);
  display:grid;place-items:center;
  flex:0 0 auto;
  transition:transform var(--dur) var(--ease);
}
.brand__mark svg{width:19px;height:19px;}
.brand:hover .brand__mark{transform:translateY(-1px);}
.brand__text{
  font-size:17px;font-weight:800;color:var(--ink-900);
  letter-spacing:-.01em;white-space:nowrap;
}
.nav-main{display:flex;align-items:center;gap:6px;flex:1 1 auto;}
.nav-link{
  position:relative;
  padding:8px 12px;
  font-size:15px;font-weight:500;color:var(--ink-700);
  border-radius:var(--r-sm);
}
.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 var(--dur) var(--ease);
}
.nav-link:hover{color:var(--ink-900);background:rgba(11,15,18,.04);}
.nav-link.is-active{color:var(--brand);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-tools{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.cmd-search{
  position:relative;display:flex;align-items:center;gap:8px;
  width:270px;height:42px;padding:0 12px;
  background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-pill);
  transition:width var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.cmd-search svg{width:16px;height:16px;stroke:var(--ink-300);flex:0 0 auto;}
.cmd-search input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink-900);
}
.cmd-search input::placeholder{color:var(--ink-300);}
.cmd-search kbd{
  font-family:inherit;font-size:11px;color:var(--ink-500);
  background:var(--paper);border:1px solid var(--line);
  border-radius:6px;padding:2px 6px;white-space:nowrap;
}
.cmd-search:focus-within{
  width:360px;border-color:var(--brand);
  box-shadow:0 0 0 4px var(--brand-soft);
}
.quick-link{
  font-size:14px;color:var(--ink-500);padding:8px 4px;
  border-bottom:1px solid transparent;
}
.quick-link:hover{color:var(--brand);border-color:var(--brand);}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);
  border-radius:var(--r-sm);background:var(--surface);
  padding:10px;flex-direction:column;justify-content:space-between;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--ink-900);}

.nav-drawer{
  position:fixed;top:0;right:0;z-index:80;
  width:86%;max-width:380px;height:100%;
  background:var(--surface);
  border-left:1px solid var(--line);
  box-shadow:-18px 0 48px rgba(11,15,18,.16);
  padding:24px 22px 40px;
  transform:translateX(102%);
  transition:transform .32s var(--ease);
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0);}
.nav-drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{width:38px;height:38px;border:1px solid var(--line);border-radius:var(--r-sm);font-size:18px;color:var(--ink-500);}
.drawer-close:hover{border-color:var(--brand);color:var(--brand);}
.nav-drawer .cmd-search{width:100%;margin-bottom:20px;}
.nav-drawer .cmd-search:focus-within{width:100%;}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-bottom:24px;}
.drawer-links a{
  padding:13px 12px;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;color:var(--ink-900);
}
.drawer-links a:hover,.drawer-links a.is-active{background:var(--brand-soft);color:var(--brand);}
.drawer-mask{
  position:fixed;inset:0;z-index:70;background:rgba(11,15,18,.42);
  opacity:0;visibility:hidden;transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;
  position:relative;overflow:hidden;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.btn--sm{height:40px;padding:0 18px;font-size:14px;}
.btn--primary{background:var(--brand);color:var(--brand-ink);}
.btn--primary::after{
  content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.42),transparent);
  transform:skewX(-18deg);
  transition:left .32s var(--ease);
}
.btn--primary:hover{background:var(--brand-hover);color:#03130D;box-shadow:0 8px 20px rgba(0,196,140,.26);}
.btn--primary:hover::after{left:120%;}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--ink-900);}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand);}
.btn--dark{background:var(--ink-900);color:#fff;}
.btn--dark:hover{background:#1A2126;}
.btn--block{width:100%;}
.btn:active{transform:translateY(1px);}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;pointer-events:none;}
.btn.is-loading{pointer-events:none;opacity:.7;}
.btn.is-loading::before{
  content:"";width:15px;height:15px;border-radius:50%;
  border:2px solid rgba(4,22,15,.28);border-top-color:var(--brand-ink);
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

.link-text{
  color:var(--brand);font-weight:700;border-bottom:1px solid rgba(0,196,140,.35);
}
.link-text:hover{border-bottom-width:2px;color:var(--brand-hover);}

/* ---------- 阅读进度 ---------- */
.read-progress{
  position:fixed;top:0;left:0;right:0;height:2px;z-index:90;
  background:transparent;pointer-events:none;
}
.read-progress__bar{width:0;height:100%;background:var(--brand);transition:width .1s linear;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-500);
  padding:24px 0 0;
}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb__sep{color:var(--line-strong);}
.breadcrumb__current{
  max-width:52ch;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;
  color:var(--ink-700);
}

/* ---------- 文章布局 ---------- */
.post-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 220px;
  gap:56px;
  align-items:start;
  padding:28px 0 72px;
}
.post-main{min-width:0;max-width:820px;}
.post-head{padding:18px 0 0;}
.post-title{
  font-size:clamp(26px,3.6vw,40px);
  font-weight:800;letter-spacing:-.02em;line-height:1.24;
}
.post-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:14px;
  margin-top:18px;font-size:13.5px;color:var(--ink-500);
}
.post-meta time{color:var(--ink-300);font-variant-numeric:tabular-nums;}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);
  font-size:12.5px;font-weight:700;letter-spacing:.04em;
}
.post-cover{
  margin-top:28px;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--line);background:var(--brand-soft);
  aspect-ratio:16/9;
}
.post-cover img{width:100%;height:100%;object-fit:cover;}

/* ---------- 正文排版 ---------- */
.art-body{
  margin-top:36px;
  font-size:16.5px;
  line-height:1.88;
  color:var(--ink-700);
  word-wrap:break-word;
}
.art-body > * + *{margin-top:1.15em;}
.art-body p{max-width:100%;}
.art-body h2{
  margin-top:1.9em;
  padding-left:14px;
  border-left:3px solid var(--brand);
  font-size:clamp(21px,2.4vw,28px);
  font-weight:700;color:var(--ink-900);
}
.art-body h3{
  margin-top:1.6em;
  font-size:20px;font-weight:700;color:var(--ink-900);
}
.art-body h4{margin-top:1.4em;font-size:17px;font-weight:700;color:var(--ink-900);}
.art-body a{color:var(--brand);border-bottom:1px solid rgba(0,196,140,.45);}
.art-body a:hover{border-bottom-width:2px;}
.art-body ul,.art-body ol{padding-left:0;}
.art-body ul li,.art-body ol li{
  position:relative;padding-left:22px;line-height:1.9;
  margin-top:.5em;
}
.art-body ul li::before{
  content:"";position:absolute;left:4px;top:.78em;
  width:6px;height:6px;border-radius:50%;background:var(--brand);
}
.art-body ol{counter-reset:art-ol;}
.art-body ol li{counter-increment:art-ol;}
.art-body ol li::before{
  content:counter(art-ol);
  position:absolute;left:0;top:.1em;
  font-size:13px;font-weight:800;color:var(--brand);
}
.art-body blockquote{
  margin:1.6em 0;padding:16px 20px;
  border-left:3px solid var(--brand);
  background:var(--brand-soft);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--ink-700);
}
.art-body img{border-radius:var(--r-md);margin:1.6em auto;}
.art-body figure{margin:1.6em 0;}
.art-body figcaption{
  margin-top:10px;text-align:center;font-size:13px;color:var(--ink-300);
}
.art-body table{
  width:100%;border-collapse:collapse;font-size:15px;
  margin:1.6em 0;background:var(--surface);
  border-radius:var(--r-sm);overflow:hidden;
}
.art-body table th{
  background:var(--brand-soft);color:var(--ink-900);
  font-weight:700;text-align:left;padding:12px 14px;
}
.art-body table td{
  padding:12px 14px;border-top:1px solid var(--line);color:var(--ink-700);
}
.art-body hr{border:0;border-top:1px dashed var(--line-strong);margin:2em 0;}
.art-body code{
  background:var(--paper);border:1px solid var(--line);border-radius:6px;
  padding:1px 6px;font-size:14px;
}
.art-body strong{color:var(--ink-900);}

/* ---------- 文章尾 ---------- */
.post-foot{
  margin-top:44px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;
}
.post-foot__label{font-size:13px;color:var(--ink-300);letter-spacing:.06em;}

/* ---------- 粘性目录 ---------- */
.toc{
  position:sticky;top:96px;
  border-left:2px solid var(--line);
  padding-left:18px;
}
.toc__title{font-size:13px;letter-spacing:.08em;color:var(--ink-300);font-weight:700;margin-bottom:12px;}
.toc a{
  display:block;padding:6px 0;font-size:14px;color:var(--ink-500);
  line-height:1.6;
}
.toc a:hover{color:var(--ink-900);}
.toc a.is-active{color:var(--brand);font-weight:700;}

/* ---------- 继续浏览 ---------- */
.more-section{padding:0 0 84px;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:28px;
}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;}
.section-head p{margin-top:8px;font-size:14.5px;color:var(--ink-500);}
.card-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
}
.card{
  position:relative;display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:var(--brand);box-shadow:var(--shadow-2);}
.card__media{aspect-ratio:3/2;background:var(--brand-soft);overflow:hidden;}
.card__media img{width:100%;height:100%;object-fit:cover;}
.card__body{padding:20px 22px 24px;}
.card__body h3{font-size:18px;font-weight:700;}
.card__body h3 a::after{content:"";position:absolute;inset:0;}
.card:hover .card__body h3 a{color:var(--brand);}
.card__body p{margin-top:10px;font-size:14.5px;color:var(--ink-500);line-height:1.75;}
.card__link{
  margin-top:16px;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;color:var(--brand);
}
.card__link span{transition:transform var(--dur) var(--ease);}
.card:hover .card__link span{transform:translateX(4px);}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink-fill);
  color:rgba(255,255,255,.78);
  padding:96px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;
  opacity:.5;
}
.cta-band__inner{position:relative;text-align:center;max-width:720px;margin:0 auto;}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,36px);font-weight:800;}
.cta-band p{margin-top:16px;color:rgba(255,255,255,.72);font-size:16px;}
.cta-band__actions{
  margin-top:32px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap;
}
.cta-band .btn--ghost{border-color:rgba(255,255,255,.28);color:#fff;}
.cta-band .btn--ghost:hover{border-color:var(--brand);color:var(--brand);}

/* ---------- 状态样式 ---------- */
.is-empty,.empty-state{
  background:var(--surface);border:1px dashed var(--line-strong);
  border-radius:var(--r-md);padding:48px 28px;text-align:center;
}
.empty-state h2{font-size:22px;}
.empty-state p{margin-top:12px;color:var(--ink-500);font-size:15px;}
.empty-state .btn{margin-top:24px;}
.skeleton{
  background:var(--brand-soft);border-radius:var(--r-sm);
  animation:breathe 1.4s ease-in-out infinite;
}
@keyframes breathe{0%,100%{opacity:1;}50%{opacity:.45;}}
.is-error{border-color:var(--err);}
.error-text{color:var(--err);font-size:13px;margin-top:8px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-fill);color:rgba(255,255,255,.72);padding:72px 0 28px;}
.foot-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
}
.foot-col--brand .brand{margin-bottom:18px;}
.foot-col--brand .brand__text{color:#fff;}
.foot-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:34ch;}
.foot-title{
  font-size:13px;letter-spacing:.08em;color:var(--ink-300);
  font-weight:700;margin-bottom:18px;text-transform:none;
}
.foot-links li + li{margin-top:11px;}
.foot-links a{
  font-size:14.5px;color:rgba(255,255,255,.72);
  border-bottom:1px solid transparent;
}
.foot-links a:hover{color:var(--brand);border-color:var(--brand);}
.foot-contact{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);}
.foot-contact strong{color:rgba(255,255,255,.86);}
.foot-bottom{
  margin-top:52px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .post-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .toc-col{display:none;}
  .cmd-search{width:210px;}
  .cmd-search:focus-within{width:280px;}
}
@media (max-width:1023px){
  .nav-main{display:none;}
  .cmd-search,.quick-link{display:none;}
  .nav-toggle{display:flex;}
  .header-tools{gap:10px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:76px 0;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .topbar{display:none;}
  .header-inner{height:62px;gap:14px;}
  .brand__text{font-size:15.5px;}
  .post-layout{padding:18px 0 52px;}
  .art-body{font-size:16px;}
  .art-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .more-section{padding-bottom:56px;}
  .cta-band{padding:56px 0;}
  .cta-band__actions .btn{width:100%;}
  .site-footer{padding:52px 0 24px;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:400px){
  .brand__text{font-size:14.5px;}
  .post-title{font-size:24px;}
  .art-body h2{font-size:20px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
  }
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --ink-900:#0B0F12;
  --ink-700:#232A2F;
  --ink-500:#5B666D;
  --ink-300:#9AA4A9;
  --line:#E3E6E4;
  --line-strong:#CFD5D2;
  --line-dark:rgba(255,255,255,.08);
  --paper:#F6F7F5;
  --surface:#FFFFFF;
  --ink-fill:#0B0F12;
  --brand:#00C48C;
  --brand-hover:#00A878;
  --brand-soft:rgba(0,196,140,.10);
  --brand-ink:#04160F;
  --accent:#FF7A1A;
  --ok:#12A150;
  --warn:#E0A100;
  --err:#DC2C2C;
  --shadow-1:0 1px 2px rgba(11,15,18,.06);
  --shadow-2:0 12px 32px rgba(11,15,18,.08);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --container:1200px;
  --container-wide:1360px;
  --header-h:68px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Space Grotesk","Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}

/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px}
::selection{background:var(--brand-soft);color:var(--ink-900)}

/* ============ 容器 ============ */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.container--wide{max-width:var(--container-wide)}

/* ============ 通用文字 ============ */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;font-weight:700;
  color:var(--brand);text-transform:uppercase;
  font-family:var(--font-num);
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--brand);border-radius:2px}
.sec-title{
  font-size:clamp(24px,3vw,36px);
  font-weight:700;line-height:1.28;color:var(--ink-900);
  letter-spacing:-.01em;
}
.sec-sub{color:var(--ink-500);font-size:16px;max-width:44ch}
.lead{font-size:17px;color:var(--ink-500);line-height:1.85}

/* ============ 按钮 ============ */
.btn{
  position:relative;overflow:hidden;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
  white-space:nowrap;
}
.btn svg{width:16px;height:16px;flex:none}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn--primary{background:var(--brand);color:#04160F}
.btn--primary::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.5),transparent);
  transform:translateX(-130%);
  transition:transform .32s var(--ease);
}
.btn--primary:hover{background:var(--brand-hover);transform:translateY(-1px)}
.btn--primary:hover::after{transform:translateX(130%)}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--ink-900)}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn--light{background:#fff;color:var(--ink-900)}
.btn--light:hover{background:var(--brand-soft);color:var(--brand)}
.btn--outline-light{background:transparent;border-color:rgba(255,255,255,.28);color:#fff}
.btn--outline-light:hover{border-color:var(--brand);color:var(--brand)}
.btn--link{
  height:auto;padding:0;border:0;color:var(--brand);font-weight:600;
  border-bottom:1px solid transparent;border-radius:0;
}
.btn--link:hover{border-bottom-color:var(--brand)}
.btn--link svg{transition:transform .24s var(--ease)}
.btn--link:hover svg{transform:translateX(4px)}
.btn:disabled,.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}

/* ============ 标签 / 徽章 ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--brand-soft);color:var(--brand);
}
.tag--line{background:transparent;border:1px solid var(--line-strong);color:var(--ink-500);font-weight:500}
.badge-rec{
  position:absolute;top:-12px;right:20px;
  background:var(--accent);color:#fff;
  font-size:11px;letter-spacing:.06em;font-weight:700;
  padding:4px 12px;border-radius:var(--r-pill);
}

/* ============ 顶部导航（命令栏） ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,247,245,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease),background-color .24s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);background:rgba(246,247,245,.95)}
.header-inner{display:flex;align-items:center;gap:22px;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand__mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--brand);display:grid;place-items:center;flex:none;
}
.brand__mark svg{width:19px;height:19px}
.brand__text{font-weight:800;font-size:17px;color:var(--ink-900);letter-spacing:-.01em;white-space:nowrap}
.brand:hover .brand__mark{background:var(--brand-hover)}

.nav-main{display:flex;align-items:center;gap:26px;margin-left:6px}
.nav-link{
  position:relative;padding:6px 0;
  font-size:15px;font-weight:500;color:var(--ink-700);
  transition:color .2s var(--ease);
}
.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 .24s var(--ease);
}
.nav-link:hover{color:var(--ink-900)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}

.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.command-search{
  display:flex;align-items:center;gap:8px;
  width:280px;height:40px;padding:0 12px;
  background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-pill);
  transition:width .28s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.command-search svg{width:16px;height:16px;color:var(--ink-300);flex:none}
.command-search input{
  flex:1;min-width:0;border:0;outline:none;background:transparent;
  font-size:14px;color:var(--ink-900);
}
.command-search input::placeholder{color:var(--ink-300)}
.command-search:focus-within{width:380px;border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-soft)}
.command-kbd{
  font-family:var(--font-num);font-size:11px;color:var(--ink-300);
  border:1px solid var(--line);border-radius:6px;padding:1px 6px;white-space:nowrap;
}
.header-quick{
  font-size:14px;color:var(--ink-500);
  transition:color .2s var(--ease);
}
.header-quick:hover{color:var(--brand)}

.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--surface);
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);border-radius:2px;
  transition:transform .24s var(--ease),top .24s var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:86%;max-width:380px;z-index:80;
  background:var(--surface);border-left:1px solid var(--line);
  padding:24px;transform:translateX(102%);
  transition:transform .32s var(--ease);
  display:flex;flex-direction:column;gap:22px;overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:38px;height:38px;border-radius:var(--r-sm);border:1px solid var(--line);display:grid;place-items:center;font-size:18px;color:var(--ink-500)}
.drawer-nav{display:grid;gap:4px}
.drawer-nav a{
  padding:14px 12px;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;color:var(--ink-700);
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.drawer-nav a:hover{background:var(--brand-soft);color:var(--brand)}
.drawer-nav a.is-active{background:var(--brand-soft);color:var(--brand)}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-pill);background:var(--paper)}
.drawer-search input{flex:1;min-width:0;border:0;outline:none;background:transparent;font-size:14px}
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,15,18,.42);
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s;z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ============ 分类页头 ============ */
.page-hero{
  position:relative;
  background:
    radial-gradient(900px 420px at 88% 10%, rgba(0,196,140,.14), transparent 62%),
    linear-gradient(180deg,#EFF7F3 0%,var(--paper) 88%);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(to right,rgba(11,15,18,.045) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(11,15,18,.045) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.55;pointer-events:none;
}
.page-hero__grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;
  padding:64px 0 72px;
}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-500);margin-bottom:20px;
}
.crumbs a{color:var(--ink-500);transition:color .2s var(--ease)}
.crumbs a:hover{color:var(--brand)}
.crumbs span.sep{color:var(--ink-300)}
.crumbs .current{color:var(--ink-900);max-width:22ch;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.page-hero h1{
  font-size:clamp(28px,4.2vw,50px);
  font-weight:800;line-height:1.16;letter-spacing:-.02em;color:var(--ink-900);
  margin-bottom:20px;
}
.page-hero h1 em{font-style:normal;color:var(--brand)}
.hero-lead{font-size:17px;line-height:1.85;color:var(--ink-500);max-width:46ch;margin-bottom:28px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:12px}
.metric{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:12px 16px;min-width:132px;box-shadow:var(--shadow-1);
}
.metric b{display:block;font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--brand);line-height:1.2}
.metric span{font-size:13px;color:var(--ink-500)}
.hero-figure{
  border-radius:var(--r-md);overflow:hidden;aspect-ratio:4/3;background:var(--brand-soft);
  box-shadow:var(--shadow-2);border:1px solid var(--line);
}
.hero-figure img{width:100%;height:100%;object-fit:cover}

/* ============ 锚点条 ============ */
.anchor-bar{
  position:sticky;top:var(--header-h);z-index:40;
  background:rgba(246,247,245,.92);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.anchor-list{
  display:flex;gap:10px;overflow-x:auto;padding:14px 0;
  scrollbar-width:none;
}
.anchor-list::-webkit-scrollbar{display:none}
.anchor-link{
  flex:none;padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--surface);
  font-size:14px;color:var(--ink-500);white-space:nowrap;
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
}
.anchor-link:hover{border-color:var(--brand);color:var(--brand)}
.anchor-link.is-active{background:var(--brand-soft);border-color:transparent;color:var(--brand);font-weight:600}

/* ============ 板块 ============ */
.section{padding:104px 0}
.section--tight{padding:72px 0}
.section--fill{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:48px}
.section-head__text{display:grid;gap:12px;max-width:62ch}

/* ============ 图文杂志流 ============ */
.mag-row{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center}
.mag-row + .mag-row{margin-top:88px}
.mag-row--reverse{grid-template-columns:7fr 5fr}
.mag-row--reverse .mag-figure{order:2}
.mag-row--reverse .mag-body{order:1}
.mag-figure{
  border-radius:var(--r-md);overflow:hidden;aspect-ratio:3/2;
  background:var(--brand-soft);border:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.mag-figure img{width:100%;height:100%;object-fit:cover}
.mag-body{display:grid;gap:16px;align-content:start}
.mag-body h2{
  font-size:clamp(22px,2.4vw,30px);font-weight:700;color:var(--ink-900);
  line-height:1.32;letter-spacing:-.01em;
}
.mag-body p{font-size:16px;color:var(--ink-500);line-height:1.9;max-width:40ch}
.mag-list{display:grid;gap:10px;margin-top:4px}
.mag-list li{
  position:relative;padding-left:22px;font-size:15px;color:var(--ink-700);line-height:1.8;
}
.mag-list li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:8px;height:8px;border-radius:50%;background:var(--brand);opacity:.9;
}

/* 步骤时间线 */
.steps{display:grid;gap:0;margin-top:8px}
.step{
  position:relative;
  display:grid;grid-template-columns:66px 1fr;gap:18px;
  padding-bottom:26px;
}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:31px;top:44px;bottom:6px;
  border-left:1px dashed rgba(0,196,140,.35);
  transition:opacity .24s var(--ease);
}
.step:last-child::before{display:none}
.step__num{
  font-family:var(--font-num);font-size:26px;font-weight:800;line-height:1.2;
  color:transparent;-webkit-text-stroke:1px var(--ink-300);
  transition:-webkit-text-stroke-color .24s var(--ease),transform .24s var(--ease);
  text-align:center;
}
.step:hover .step__num{-webkit-text-stroke-color:var(--brand);transform:translateY(-1px)}
.step:hover::before{opacity:1;border-left-color:rgba(0,196,140,.6)}
.step__body h3{font-size:18px;font-weight:700;color:var(--ink-900);margin-bottom:6px}
.step__body p{font-size:15px;color:var(--ink-500);line-height:1.8}
.step__time{
  display:inline-block;margin-top:8px;font-size:12px;color:var(--ink-300);
  border:1px solid var(--line);border-radius:var(--r-pill);padding:2px 10px;
  font-family:var(--font-num);letter-spacing:.02em;
}

/* ============ 核对清单 ============ */
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.check-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;display:grid;gap:10px;
  box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.check-card:hover{transform:translateY(-2px);border-color:var(--brand);box-shadow:var(--shadow-2)}
.check-card__icon{
  width:34px;height:34px;border-radius:10px;
  border:1px solid var(--line);display:grid;place-items:center;color:var(--brand);
}
.check-card__icon svg{width:17px;height:17px}
.check-card h3{font-size:16px;font-weight:700;color:var(--ink-900)}
.check-card p{font-size:14px;color:var(--ink-500);line-height:1.8}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq-side{display:grid;gap:14px;position:sticky;top:calc(var(--header-h) + 72px)}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:24px 0;text-align:left;
  font-size:17px;font-weight:700;color:var(--ink-900);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-q__icon{
  flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line-strong);position:relative;
  transition:transform .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease);
}
.faq-q__icon::before,.faq-q__icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink-500);
  transform:translate(-50%,-50%);border-radius:2px;
}
.faq-q__icon::before{width:11px;height:1.6px}
.faq-q__icon::after{width:1.6px;height:11px}
.faq-item.is-open .faq-q{color:var(--brand)}
.faq-item.is-open .faq-q__icon{transform:rotate(45deg);border-color:var(--brand);background:var(--brand-soft)}
.faq-item.is-open .faq-q__icon::before,.faq-item.is-open .faq-q__icon::after{background:var(--brand)}
.faq-a{
  max-height:0;opacity:0;overflow:hidden;
  transition:max-height .34s var(--ease),opacity .26s var(--ease),padding .26s var(--ease);
}
.faq-item.is-open .faq-a{max-height:360px;opacity:1;padding-bottom:22px}
.faq-a p{font-size:15px;color:var(--ink-500);line-height:1.9;max-width:66ch}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink-fill);color:#fff;
  border-radius:var(--r-lg);
  padding:76px 48px;
  text-align:center;
  border:1px solid var(--line-dark);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(600px 260px at 50% 0%,rgba(0,196,140,.22),transparent 70%);
  pointer-events:none;
}
.cta-band__inner{position:relative;display:grid;gap:18px;justify-items:center}
.cta-band h2{font-size:clamp(22px,2.6vw,34px);font-weight:700;line-height:1.3;letter-spacing:-.01em;color:#fff}
.cta-band p{color:rgba(255,255,255,.72);max-width:52ch;font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:8px}

/* ============ 状态样式 ============ */
.skeleton{
  background:var(--brand-soft);border-radius:var(--r-md);
  animation:breathe 1.4s ease-in-out infinite;
}
@keyframes breathe{0%,100%{opacity:1}50%{opacity:.5}}
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--r-md);
  padding:48px 24px;text-align:center;color:var(--ink-500);
  background:var(--surface);max-height:320px;
}
.empty-state__art{
  width:64px;height:64px;margin:0 auto 14px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;color:var(--ink-300);
}
.is-error{border-color:var(--err)!important;color:var(--err)!important}
.is-error ~ .field-tip{color:var(--err)}
.field-tip{font-size:13px;color:var(--ink-300);margin-top:6px}
.is-loading{pointer-events:none;opacity:.72}
.is-loading::before{
  content:"";width:14px;height:14px;border-radius:50%;
  border:2px solid rgba(4,22,15,.25);border-top-color:#04160F;
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-fill);color:#fff;padding-top:76px;margin-top:96px}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:54px}
.foot-col--brand .brand__text{color:#fff}
.foot-desc{color:rgba(255,255,255,.6);font-size:14px;line-height:1.85;margin-top:16px;max-width:34ch}
.foot-title{font-size:13px;letter-spacing:.08em;color:var(--ink-300);font-weight:600;margin-bottom:16px}
.foot-links{display:grid;gap:10px}
.foot-links a{
  color:rgba(255,255,255,.78);font-size:14px;
  border-bottom:2px solid transparent;padding-bottom:2px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.foot-links a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.foot-contact{color:rgba(255,255,255,.66);font-size:14px;line-height:1.9}
.foot-contact strong{color:rgba(255,255,255,.9);font-weight:600}
.foot-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:22px 0;border-top:1px solid var(--line-dark);
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 22px}
  .command-search{width:220px}
  .command-search:focus-within{width:300px}
  .nav-main{gap:20px}
  .mag-row,.mag-row--reverse{gap:40px}
  .faq-layout{gap:40px}
  .section{padding:88px 0}
}
@media (max-width:1023px){
  .nav-main,.command-search,.header-quick{display:none}
  .nav-toggle{display:flex}
  .page-hero__grid{grid-template-columns:1fr;gap:36px;padding:48px 0 56px}
  .hero-figure{aspect-ratio:16/10}
  .mag-row,.mag-row--reverse{grid-template-columns:1fr;gap:28px}
  .mag-row--reverse .mag-figure{order:0}
  .mag-row--reverse .mag-body{order:1}
  .check-grid{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .faq-side{position:static}
  .section{padding:72px 0}
  .mag-row + .mag-row{margin-top:64px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--header-h:60px}
  body{font-size:15px}
  .container{padding:0 20px}
  .brand__text{font-size:15px}
  .header-actions{gap:10px}
  .page-hero h1{font-size:clamp(26px,7vw,34px)}
  .hero-metrics{gap:10px}
  .metric{flex:1 1 46%;min-width:0;padding:10px 14px}
  .metric b{font-size:19px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .section-head{margin-bottom:32px}
  .mag-body p{max-width:100%}
  .check-grid{grid-template-columns:1fr}
  .step{grid-template-columns:52px 1fr;gap:14px}
  .step::before{left:25px}
  .cta-band{padding:48px 24px;border-radius:var(--r-md)}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .anchor-list{padding:12px 0}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;gap:6px}
  .faq-q{font-size:16px;padding:20px 0}
  .site-footer{margin-top:64px;padding-top:56px}
}
@media (max-width:400px){
  .page-hero h1{font-size:25px}
  .brand__text{font-size:14px}
  .metric span{font-size:12px}
  .eyebrow::before{display:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms!important;animation-iteration-count:1!important;
    transition-duration:.001ms!important;scroll-behavior:auto!important;
  }
  .mag-row,.check-card,.btn{transform:none!important}
}

/* roulang page: category2 */
:root{
  --ink-900:#0B0F12;
  --ink-700:#232A2F;
  --ink-500:#5B666D;
  --ink-300:#9AA4A9;
  --line:#E3E6E4;
  --line-strong:#CFD5D2;
  --line-dark:rgba(255,255,255,.08);
  --paper:#F6F7F5;
  --surface:#FFFFFF;
  --ink-fill:#0B0F12;
  --brand:#00C48C;
  --brand-hover:#00A878;
  --brand-soft:rgba(0,196,140,.10);
  --brand-ink:#062B22;
  --accent:#FF7A1A;
  --ok:#12A150;
  --warn:#E0A100;
  --err:#DC2C2C;
  --shadow-1:0 1px 2px rgba(11,15,18,.06);
  --shadow-2:0 12px 32px rgba(11,15,18,.08);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --hdr:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,opacity .2s ease}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
::selection{background:var(--brand-soft);color:var(--brand-ink)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.container--wide{max-width:1360px}

/* ============ 顶部公告条 ============ */
.topbar{background:var(--ink-fill);color:rgba(255,255,255,.82);font-size:13.5px}
.topbar__in{display:flex;align-items:center;justify-content:center;gap:14px;min-height:38px;padding:6px 0;text-align:center}
.topbar a{color:var(--brand);font-weight:700;display:inline-flex;align-items:center;gap:4px;white-space:nowrap}
.topbar a svg{transition:transform .2s ease}
.topbar a:hover svg{transform:translateX(3px)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,247,245,.9);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .24s ease,box-shadow .24s ease,background .24s ease;
}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:var(--shadow-1);background:rgba(246,247,245,.94)}
.nav-wrap{height:var(--hdr);display:flex;align-items:center;gap:22px;transition:height .24s ease}
.site-header.is-stuck .nav-wrap{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:var(--ink-900);letter-spacing:-.01em;white-space:nowrap;flex:none}
.brand__mark{width:34px;height:34px;border-radius:10px;background:var(--brand);display:grid;place-items:center;flex:none}
.brand__mark svg{width:20px;height:20px}
.brand__text{max-width:210px;overflow:hidden;text-overflow:ellipsis}
.nav-main{display:flex;align-items:center;gap:4px;margin-right:auto}
.nav-link{position:relative;padding:8px 12px;font-size:15px;font-weight:500;color:var(--ink-700);border-radius:var(--r-sm);white-space:nowrap}
.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 .24s cubic-bezier(.2,.7,.2,1)}
.nav-link:hover{color:var(--ink-900)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}

.cmd-search{position:relative;display:flex;align-items:center;width:264px;flex:none;transition:width .28s cubic-bezier(.2,.7,.2,1)}
.cmd-search input{
  width:100%;height:40px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:var(--surface);padding:0 58px 0 38px;font-size:14px;color:var(--ink-900);
  outline:none;transition:border-color .2s ease,box-shadow .2s ease;
}
.cmd-search input::placeholder{color:var(--ink-300)}
.cmd-search input:focus{border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-soft)}
.cmd-search:focus-within{width:380px}
.cmd-search .ico{position:absolute;left:14px;width:16px;height:16px;color:var(--ink-300);pointer-events:none}
.cmd-search .kbd{position:absolute;right:8px;font-size:11px;line-height:1;padding:4px 8px;border-radius:6px;border:1px solid var(--line);color:var(--ink-300);background:var(--paper);pointer-events:none}
.nav-quick{display:flex;align-items:center;gap:16px;flex:none}
.nav-quick a{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;color:var(--ink-500);font-weight:500}
.nav-quick a:hover{color:var(--brand)}
.nav-quick svg{width:16px;height:16px}
.nav-cta{display:flex;align-items:center;gap:10px;flex:none}
.burger{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);place-items:center;background:var(--surface)}
.burger i{display:block;position:relative;width:18px;height:2px;background:var(--ink-900);border-radius:2px}
.burger i::before,.burger i::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);border-radius:2px}
.burger i::before{top:-6px}
.burger i::after{top:6px}

/* 抽屉 */
.scrim{position:fixed;inset:0;background:rgba(11,15,18,.5);opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;z-index:70}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:86%;max-width:380px;background:var(--surface);z-index:71;
  transform:translateX(105%);transition:transform .3s cubic-bezier(.2,.7,.2,1);
  padding:22px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;
}
.drawer__head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer__close{width:38px;height:38px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center;font-size:18px;color:var(--ink-500)}
.drawer-search{display:flex;align-items:center;gap:10px;height:44px;border:1px solid var(--line);border-radius:var(--r-pill);padding:0 16px;background:var(--paper)}
.drawer-search input{border:0;background:none;outline:none;width:100%;font-size:14px;color:var(--ink-900)}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{padding:14px 2px;border-bottom:1px solid var(--line);font-size:16px;font-weight:600;color:var(--ink-700)}
.drawer-nav a.is-active{color:var(--brand)}
.drawer .btn{width:100%}
body.drawer-open{overflow:hidden}
body.drawer-open .scrim{opacity:1;visibility:visible}
body.drawer-open .drawer{transform:none}

/* ============ 按钮 ============ */
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:700;letter-spacing:.01em;cursor:pointer;overflow:hidden;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease;
}
.btn--sm{height:38px;padding:0 18px;font-size:14px}
.btn--primary{background:var(--brand);color:#04160F}
.btn--primary::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,transparent 22%,rgba(255,255,255,.5),transparent 78%);transform:translateX(-125%);transition:transform .32s ease}
.btn--primary:hover{background:var(--brand-hover)}
.btn--primary:hover::after{transform:translateX(125%)}
.btn--ghost{border-color:var(--line-strong);color:var(--ink-900);background:var(--surface)}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn--ghost-dark{border-color:var(--line-dark);color:#fff;background:transparent}
.btn--ghost-dark:hover{border-color:var(--brand);color:var(--brand)}
.btn--dark{background:#04160F;color:#fff}
.btn--dark:hover{background:#0c2a1e}
.btn--text{height:auto;padding:0;border:0;border-radius:0;color:var(--brand);font-weight:700;background:none;overflow:visible}
.btn--text:hover{text-decoration:underline;text-underline-offset:5px}
.btn.is-disabled,.btn:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}
.btn.is-loading{pointer-events:none;opacity:.7}
.btn.is-loading::before{content:"";width:14px;height:14px;border-radius:50%;border:2px solid rgba(4,22,15,.25);border-top-color:#04160F;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ============ 首屏 ============ */
.cat-hero{position:relative;background:var(--ink-fill);color:#fff;overflow:hidden;padding:56px 0 72px}
.cat-hero__bg{position:absolute;inset:0;background-image:url(/assets/images/backpic/back-2.webp);background-size:cover;background-position:center;opacity:.24}
.cat-hero__veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,15,18,.72) 0%,rgba(11,15,18,.9) 60%,rgba(11,15,18,.96) 100%)}
.cat-hero__inner{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.55);margin-bottom:32px;flex-wrap:wrap}
.crumb a{color:rgba(255,255,255,.72)}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{color:rgba(255,255,255,.3)}
.crumb .now{color:rgba(255,255,255,.9);max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cat-hero__grid{display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:.12em;color:var(--brand);text-transform:uppercase;margin-bottom:18px}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);display:inline-block}
h1{font-size:clamp(30px,4.2vw,52px);font-weight:800;line-height:1.15;letter-spacing:-.02em;color:#fff;margin-bottom:20px}
h1 .hl{color:var(--brand)}
.cat-hero__lead{font-size:clamp(16px,1.4vw,19px);color:rgba(255,255,255,.76);max-width:34em;margin-bottom:32px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:40px}
.hero-metrics{display:flex;gap:40px;flex-wrap:wrap;list-style:none;padding-top:26px;border-top:1px solid var(--line-dark)}
.hero-metrics li{display:flex;flex-direction:column;gap:2px}
.hero-metrics b{font-size:26px;font-weight:800;color:var(--brand);letter-spacing:-.02em;line-height:1.2}
.hero-metrics span{font-size:13px;color:rgba(255,255,255,.55)}
.cat-hero__visual{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line-dark);aspect-ratio:3/2;background:rgba(255,255,255,.04)}
.cat-hero__visual img{width:100%;height:100%;object-fit:cover}

/* 锚点条 */
.anchor-bar{background:var(--surface);border-bottom:1px solid var(--line);position:relative;z-index:3}
.anchor-bar__in{display:flex;gap:10px;overflow-x:auto;padding:14px 0;scrollbar-width:none}
.anchor-bar__in::-webkit-scrollbar{display:none}
.anchor-link{
  flex:none;padding:8px 18px;border-radius:var(--r-pill);border:1px solid var(--line);
  font-size:14px;font-weight:500;color:var(--ink-500);background:var(--paper);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.anchor-link:hover{color:var(--brand);border-color:var(--brand)}
.anchor-link.is-active{background:var(--brand-soft);border-color:var(--brand);color:var(--brand);font-weight:700}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--ink{background:var(--ink-fill);color:#fff}
.section--paper{background:var(--paper)}
.sec-head{max-width:720px;margin-bottom:48px}
.sec-label{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--brand);text-transform:uppercase;margin-bottom:12px}
.sec-title{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.25;letter-spacing:-.02em;color:var(--ink-900);margin-bottom:14px}
.sec-desc{font-size:16px;color:var(--ink-500);max-width:44em}
.section--ink .sec-title{color:#fff}
.section--ink .sec-desc{color:rgba(255,255,255,.66)}

/* ============ 卡片墙 ============ */
.wall{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:minmax(170px,auto);gap:24px}
.wall-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:26px;
  display:flex;flex-direction:column;gap:12px;
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.wall-card:hover{transform:translateY(-2px);border-color:var(--brand);box-shadow:var(--shadow-2)}
.wall-card:hover h3{color:var(--brand)}
.wall-card:hover .wall-link svg{transform:translateX(4px)}
.wall-card--tall{grid-row:span 2}
.wall-card--wide{grid-column:span 3;flex-direction:row;align-items:center;gap:40px;padding:32px}
.wall-card--wide .wall-body{flex:1;display:flex;flex-direction:column;gap:12px}
.wall-ico{width:42px;height:42px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center;color:var(--brand);flex:none}
.wall-ico svg{width:20px;height:20px}
.wall-card h3{font-size:20px;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;transition:color .2s ease}
.wall-card p{font-size:15px;color:var(--ink-500);margin:0}
.wall-figure{border-radius:var(--r-sm);overflow:hidden;aspect-ratio:16/9;background:var(--brand-soft);margin-top:6px}
.wall-figure img{width:100%;height:100%;object-fit:cover}
.wall-link{margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand)}
.wall-link svg{width:15px;height:15px;transition:transform .2s ease}

/* ============ 方案对比 ============ */
.cmp{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.cmp-col{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:30px 26px;display:flex;flex-direction:column;gap:18px;
  transition:border-color .24s ease,box-shadow .24s ease,transform .24s ease;
}
.cmp-col:hover{border-color:var(--brand);box-shadow:var(--shadow-2)}
.cmp-col--rec{border:2px solid var(--brand);transform:translateY(-6px);box-shadow:var(--shadow-2)}
.cmp-badge{position:absolute;top:-13px;right:24px;background:var(--accent);color:#fff;font-size:11px;font-weight:700;letter-spacing:.06em;padding:5px 12px;border-radius:var(--r-pill)}
.cmp-name{font-size:20px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em}
.cmp-sub{font-size:13.5px;color:var(--ink-500)}
.cmp-price{font-size:14px;color:var(--ink-700);padding:10px 14px;border-radius:var(--r-sm);background:var(--brand-soft);font-weight:600}
.cmp-list{list-style:none;display:flex;flex-direction:column;gap:11px;padding:0;margin:0}
.cmp-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-700);line-height:1.7}
.ck{width:18px;height:18px;flex:none;color:var(--brand);margin-top:5px}
.cmp-col .btn{width:100%;margin-top:auto}

/* ============ 深色自查区 ============ */
.check-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.check-figure{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line-dark);aspect-ratio:3/2;background:rgba(255,255,255,.04)}
.check-figure img{width:100%;height:100%;object-fit:cover}
.check-list{display:flex;flex-direction:column}
.check-item{display:grid;grid-template-columns:auto 1fr;gap:18px;padding:22px 0;border-bottom:1px dashed rgba(255,255,255,.16)}
.check-item:first-child{padding-top:0}
.check-item:last-child{border-bottom:0;padding-bottom:0}
.check-num{font-size:26px;font-weight:800;line-height:1.2;color:transparent;-webkit-text-stroke:1px var(--ink-300)}
.check-item h3{font-size:17px;font-weight:700;color:#fff;margin-bottom:6px}
.check-item p{font-size:14.5px;color:rgba(255,255,255,.62);margin:0}

/* ============ FAQ ============ */
.faq{max-width:880px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;text-align:left;font-size:17px;font-weight:700;color:var(--ink-900);
  min-height:68px;transition:color .2s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-q[aria-expanded="true"]{color:var(--brand)}
.plus{position:relative;width:20px;height:20px;flex:none;transition:transform .22s ease}
.plus::before,.plus::after{content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;transform:translate(-50%,-50%)}
.plus::before{width:14px;height:2px}
.plus::after{width:2px;height:14px}
.faq-item.is-open .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;opacity:0;padding:0 4px;transition:max-height .3s ease,opacity .25s ease,padding .3s ease}
.faq-item.is-open .faq-a{opacity:1;padding-bottom:22px}
.faq-a p{font-size:15.5px;color:var(--ink-500)}

/* ============ CTA ============ */
.cta-band{background:var(--brand);color:#04160F;padding:96px 0;text-align:center}
.cta-band h2{font-size:clamp(26px,3.4vw,40px);font-weight:800;letter-spacing:-.02em;color:#04160F;margin-bottom:14px}
.cta-band p{max-width:620px;margin:0 auto 32px;color:rgba(4,22,15,.78);font-size:16.5px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-fill);color:rgba(255,255,255,.7);padding:72px 0 28px}
.site-footer .brand{color:#fff}
.site-footer .brand__text{color:#fff}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.foot-title{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--ink-300);margin-bottom:16px}
.foot-links{list-style:none;display:flex;flex-direction:column;gap:11px}
.foot-links a{position:relative;font-size:14.5px;color:rgba(255,255,255,.7)}
.foot-links a::after{content:"";position:absolute;left:0;bottom:-3px;height:2px;width:0;background:var(--brand);transition:width .22s ease}
.foot-links a:hover{color:var(--brand)}
.foot-links a:hover::after{width:100%}
.foot-desc{font-size:14px;color:rgba(255,255,255,.56);margin-top:16px;max-width:330px}
.foot-contact{font-size:14px;color:rgba(255,255,255,.58);line-height:1.9}
.foot-contact strong{display:block;color:#fff;font-weight:600;margin-bottom:2px}
.foot-bottom{
  margin-top:56px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.46);
}

/* ============ 状态样式 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s cubic-bezier(.2,.7,.2,1),transform .42s cubic-bezier(.2,.7,.2,1)}
.reveal.is-in{opacity:1;transform:none}
.skeleton{background:var(--brand-soft);border-radius:var(--r-sm);animation:breathe 1.4s ease-in-out infinite}
@keyframes breathe{0%,100%{opacity:.55}50%{opacity:1}}
.is-empty{padding:48px 24px;text-align:center;border:1px dashed var(--line-strong);border-radius:var(--r-md);color:var(--ink-500);background:var(--surface)}
.is-empty .btn{margin-top:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:14px;color:var(--ink-700);font-weight:600}
.field input{height:46px;border-radius:var(--r-sm);border:1px solid var(--line);padding:0 14px;background:var(--surface);outline:none;transition:border-color .2s ease,box-shadow .2s ease}
.field input:focus{border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-soft)}
.field.is-error input{border:2px solid var(--err)}
.field.is-error .hint{font-size:13px;color:var(--err)}
.toast{
  position:fixed;top:16px;left:50%;transform:translate(-50%,-140%);
  background:var(--ink-900);color:#fff;padding:12px 22px;border-radius:var(--r-pill);
  font-size:14px;z-index:120;transition:transform .3s cubic-bezier(.2,.7,.2,1);box-shadow:var(--shadow-2);
}
.toast.is-show{transform:translate(-50%,0)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .cmd-search{width:220px}
  .cmd-search:focus-within{width:300px}
  .cat-hero__grid{gap:40px}
  .hero-metrics{gap:28px}
}
@media (max-width:1023px){
  .cmd-search,.nav-quick{display:none}
  .nav-main{gap:0}
  .nav-link{padding:8px 9px;font-size:14.5px}
  .burger{display:grid}
  .nav-cta .btn--primary{display:none}
  .cat-hero__grid{grid-template-columns:1fr;gap:36px}
  .cat-hero{padding:44px 0 60px}
  .wall{grid-template-columns:repeat(2,1fr)}
  .wall-card--wide{grid-column:span 2;flex-direction:column;align-items:flex-start;gap:20px}
  .cmp{grid-template-columns:1fr;gap:20px}
  .cmp-col--rec{transform:none}
  .check-grid{grid-template-columns:1fr;gap:36px}
  .section{padding:72px 0}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .topbar{display:none}
  .nav-wrap{height:62px;gap:12px}
  .brand__text{max-width:130px;font-size:15px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .sec-head{margin-bottom:32px}
  .wall{grid-template-columns:1fr;grid-auto-rows:auto}
  .wall-card--tall{grid-row:auto}
  .wall-card--wide{grid-column:span 1}
  .cmp-col{padding:24px 20px}
  .cmp-col--rec{order:-1}
  .cta-band{padding:64px 0}
  .hero-cta .btn{flex:1 1 100%}
  .hero-metrics{gap:22px;padding-top:22px}
  .hero-metrics b{font-size:22px}
  .faq-q{font-size:16px;padding:20px 2px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;align-items:flex-start;margin-top:40px}
  .site-footer{padding:56px 0 24px}
}
@media (max-width:400px){
  h1{font-size:26px}
  .cat-hero__lead{font-size:15.5px}
  .wall-card{padding:20px}
  .cat-hero{padding:36px 0 48px}
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}