/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --ink:#17211E;
  --ink-soft:#33413C;
  --green:#0F5F4C;
  --green-deep:#0B4939;
  --lime:#C8F751;
  --amber:#FF8A3C;
  --bg:#F6F5EF;
  --dark:#12241F;
  --dark-2:#0C1B17;
  --line:#E2E0D6;
  --muted:#6B7A74;
  --white:#FFFFFF;
  --r-card:16px;
  --r-img:16px;
  --r-btn:12px;
  --r-input:12px;
  --shadow-1:0 1px 2px rgba(18,33,29,.06);
  --shadow-2:0 12px 32px -16px rgba(18,33,29,.28);
  --maxw:1200px;
  --gap:24px;
  --sec-y:96px;
  --num-font:"DIN Alternate","Barlow Semi Condensed","Helvetica Neue",Arial,sans-serif;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
a:hover,a:focus{color:inherit}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.2px;line-height:1.25;color:var(--ink)}
h1{font-size:clamp(32px,4.4vw,56px);line-height:1.18}
h2{font-size:clamp(26px,3vw,38px)}
h3{font-size:22px;line-height:1.4}
h4{font-size:18px;line-height:1.5;font-weight:700}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}

/* ============ 容器与板块 ============ */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:var(--sec-y) 0;position:relative}
.section + .section{border-top:1px solid var(--line)}
.section-tint{background:var(--white)}
.section-dark{background:var(--dark);color:#D9E2DD}
.section-dark h2,.section-dark h3,.section-dark h4{color:#FFFFFF}
.section-dark .sec-desc{color:#9FB3AC}

.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:32px;margin-bottom:40px;flex-wrap:wrap;
}
.section-head .sec-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:28px;border:1px solid var(--green);
  color:var(--green);font-family:var(--num-font);
  font-size:14px;font-weight:700;letter-spacing:.5px;
  border-radius:4px;margin-bottom:14px;
}
.section-head h2{margin-bottom:10px}
.sec-desc{color:var(--muted);font-size:15px;line-height:1.8;max-width:600px}

.text-link{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--green);font-weight:700;font-size:15px;
  position:relative;padding-bottom:2px;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--green);transition:width .24s ease;
}
.text-link:hover::after{width:100%}
.text-link .arw{transition:transform .24s ease}
.text-link:hover .arw{transform:translateX(4px)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;
  border:2px solid transparent;cursor:pointer;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
  white-space:nowrap;
}
.btn .arw{transition:transform .22s ease}
.btn:hover .arw{transform:translateX(4px)}
.btn-primary{background:var(--green);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--green-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--green);border-color:var(--green)}
.btn-ghost:hover{background:rgba(200,247,81,.16);border-color:var(--lime);color:var(--green-deep);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px}
.btn-block{width:100%}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,245,239,.96);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-1);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  height:64px;gap:24px;
}
.nav-left{display:flex;align-items:center;gap:36px;flex:7 1 0;min-width:0}
.nav-right{
  display:flex;align-items:center;justify-content:flex-end;gap:14px;
  flex:5 1 0;min-width:0;border-left:1px solid var(--line);padding-left:24px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  position:relative;width:28px;height:28px;background:var(--green);
  border-radius:5px;
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
}
.brand-mark::after{
  content:"";position:absolute;left:5px;right:5px;top:12px;height:3px;
  background:var(--lime);transform:rotate(-24deg);border-radius:2px;
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.2px;color:var(--ink)}
.nav-links{display:flex;align-items:center;gap:26px;font-size:15px}
.nav-links a{
  position:relative;padding:6px 0;color:var(--ink-soft);font-weight:500;
  transition:color .2s ease;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform .24s ease;border-radius:2px;
}
.nav-links a:hover{color:var(--green)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--green);font-weight:700}
.nav-links a.active::after{transform:scaleX(1)}

.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:10px;border:1px solid transparent;
  color:var(--ink-soft);transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.icon-btn:hover{background:rgba(15,95,76,.08);color:var(--green);border-color:rgba(15,95,76,.16)}
.menu-toggle{display:none}

/* 搜索层 */
.search-layer{
  position:absolute;left:0;right:0;top:100%;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-2);
  padding:22px 0 26px;
  display:none;
}
.search-layer.is-open{display:block}
.search-form{display:flex;gap:12px}
.search-form input[type="search"]{
  flex:1;height:48px;padding:0 16px;border:1px solid var(--line);
  border-radius:var(--r-input);background:var(--bg);
  font-size:15px;color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form input[type="search"]:focus{
  outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(15,95,76,.12);
}
.search-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;align-items:center}
.search-tags span{font-size:13px;color:var(--muted)}
.tag-pill{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border:1px solid var(--line);border-radius:999px;font-size:13px;
  color:var(--ink-soft);background:var(--bg);
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.tag-pill:hover{border-color:var(--lime);color:var(--green);background:rgba(200,247,81,.18)}

/* 移动抽屉 */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);
  background:#fff;z-index:120;transform:translateX(102%);
  transition:transform .3s cubic-bezier(.4,0,.2,1);
  box-shadow:-16px 0 40px -20px rgba(18,33,29,.4);
  display:flex;flex-direction:column;padding:20px 22px 28px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:24px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:10px;
  font-size:16px;font-weight:600;color:var(--ink-soft);
  border:1px solid transparent;transition:background-color .2s ease,color .2s ease;
}
.drawer-nav a:hover{background:var(--bg);color:var(--green)}
.drawer-nav a.active{background:rgba(15,95,76,.08);color:var(--green);border-color:rgba(15,95,76,.14)}
.drawer-search{margin-bottom:20px}
.drawer-mask{
  position:fixed;inset:0;background:rgba(18,33,29,.42);z-index:110;
  opacity:0;pointer-events:none;transition:opacity .3s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}

/* ============ Hero ============ */
.hero{padding:64px 0 88px;position:relative;overflow:hidden;background:var(--bg)}
.hero::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:58.33%;
  background:linear-gradient(180deg,rgba(15,95,76,.045),rgba(15,95,76,0));
  pointer-events:none;
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:7fr 5fr;
  gap:56px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  height:30px;padding:0 14px;border-radius:999px;
  background:rgba(15,95,76,.08);color:var(--green);
  font-size:13px;font-weight:700;letter-spacing:.3px;margin-bottom:22px;
  border:1px solid rgba(15,95,76,.14);
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--amber);display:inline-block}
.hero h1{margin-bottom:20px;max-width:15em}
.hero h1 .hl{
  background:linear-gradient(180deg,transparent 62%,rgba(200,247,81,.72) 62%);
  padding:0 2px;
}
.hero-sub{font-size:17px;color:var(--ink-soft);line-height:1.8;max-width:34em;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-points{display:flex;flex-wrap:wrap;align-items:center;gap:0;font-size:14px;color:var(--muted)}
.hero-points li{display:inline-flex;align-items:center;gap:8px;padding-right:16px}
.hero-points li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--green);flex-shrink:0;
}
.hero-points li + li{padding-left:16px}
.hero-points li + li::after{
  content:"";position:absolute;
}

.hero-visual{position:relative}
.hero-figure{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  box-shadow:var(--shadow-2);background:var(--dark);
}
.hero-figure img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-figure .tick{
  position:absolute;left:0;right:0;height:1px;background:rgba(255,255,255,.42);
  transform-origin:left;
}
.hero-figure .tick:nth-child(2){top:22%;opacity:.75}
.hero-figure .tick:nth-child(3){top:42%;opacity:.6}
.hero-figure .tick:nth-child(4){top:62%;opacity:.45}
.hero-figure .tick:nth-child(5){top:82%;opacity:.3}
.float-card{
  position:absolute;right:18px;bottom:18px;
  background:#fff;border-radius:12px;padding:14px 18px;
  box-shadow:var(--shadow-2);border-left:3px solid var(--lime);
  display:flex;align-items:baseline;gap:6px;
}
.float-card .float-label{display:block;font-size:12px;color:var(--muted);font-weight:600;letter-spacing:.4px}
.float-card strong{
  font-family:var(--num-font);font-size:32px;line-height:1;
  color:var(--green);font-weight:800;
}
.float-card .float-unit{font-size:12px;color:var(--muted)}

/* ============ 指标看板 ============ */
.metrics{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:64px 0}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric-card{
  position:relative;background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px 22px 20px 26px;
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.metric-card::before{
  content:"";position:absolute;left:0;top:22px;bottom:64px;width:3px;
  background:var(--lime);border-radius:0 3px 3px 0;
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D5D2C4}
.metric-label{font-size:14px;color:var(--muted);font-weight:600;margin-bottom:14px}
.metric-value{
  font-family:var(--num-font);font-size:clamp(40px,6vw,60px);
  line-height:1;font-weight:800;color:var(--green);letter-spacing:-1px;
}
.metric-unit{font-size:13px;color:var(--muted);margin-left:6px;font-weight:600}
.metric-badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:700;margin-top:14px;
  background:rgba(200,247,81,.35);color:#3A4A0E;
}
.metric-badge.warm{background:rgba(255,138,60,.16);color:#A54A0C}
.metric-scale{
  margin-top:18px;height:14px;
  background-image:repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px 9px);
}

/* ============ 服务矩阵 ============ */
.matrix-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.m-card{
  position:relative;background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px;box-shadow:var(--shadow-1);
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
  display:flex;flex-direction:column;overflow:hidden;
}
.m-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D5D2C4}
.m-card .m-progress{
  position:absolute;left:0;top:0;height:4px;width:0;background:var(--lime);
  transition:width .3s ease;
}
.m-card:hover .m-progress{width:100%}
.m-card .m-num{
  font-family:var(--num-font);font-size:13px;font-weight:700;
  color:var(--green);border:1px solid rgba(15,95,76,.28);
  border-radius:4px;padding:2px 8px;align-self:flex-start;margin-bottom:16px;
}
.m-card h3{font-size:19px;margin-bottom:10px}
.m-card p{font-size:14.5px;color:var(--muted);line-height:1.8}
.m-card .m-link{
  margin-top:18px;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;color:var(--green);
}
.m-card .m-link .arw{transition:transform .22s ease}
.m-card:hover .m-link .arw{transform:translateX(4px)}

.m-card.large{grid-column:span 6;padding:0;overflow:hidden}
.m-card.large .m-media{position:relative}
.m-card.large .m-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.m-card.large .m-body{padding:26px}
.m-card.large h3{font-size:22px}

.m-card.small{grid-column:span 3;padding-top:30px}
.m-card.small::before{
  content:"";position:absolute;left:26px;top:16px;width:32px;height:4px;
  background:var(--lime);border-radius:2px;
}
.m-card.wide{grid-column:span 6;flex-direction:row;align-items:center;justify-content:space-between;gap:24px;background:var(--dark);border-color:var(--dark);color:#D9E2DD}
.m-card.wide h3{color:#fff;font-size:20px}
.m-card.wide p{color:#9FB3AC;font-size:14px;margin-top:8px}
.m-card.wide:hover{background:var(--dark-2);border-color:var(--dark-2)}
.m-card.wide .btn-ghost{color:var(--lime);border-color:rgba(200,247,81,.6);flex-shrink:0}
.m-card.wide .btn-ghost:hover{background:rgba(200,247,81,.14);border-color:var(--lime);color:var(--lime)}

/* ============ 适用场景 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.scene-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
  display:flex;flex-direction:column;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D5D2C4}
.scene-card img{width:100%;aspect-ratio:4/3;object-fit:cover}
.scene-body{padding:20px 22px 24px}
.scene-body h3{font-size:18px;margin-bottom:8px}
.scene-body p{font-size:14px;color:var(--muted);line-height:1.8}
.scene-tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:700;
  background:rgba(255,138,60,.14);color:#A54A0C;margin-bottom:12px;
}

/* ============ 结果对比 ============ */
.compare-wrap{
  display:grid;grid-template-columns:1fr 1px 1fr;gap:40px;align-items:start;
  margin-top:8px;
}
.compare-col h3{
  font-size:16px;font-weight:700;color:var(--muted);
  letter-spacing:.4px;margin-bottom:24px;display:flex;align-items:center;gap:10px;
}
.compare-col.right h3{color:var(--green)}
.compare-item{margin-bottom:22px}
.compare-item .ci-head{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  font-size:14.5px;color:var(--ink-soft);margin-bottom:8px;
}
.compare-item .ci-head b{font-weight:700;color:var(--ink)}
.compare-bar{
  height:10px;border-radius:6px;background:var(--line);overflow:hidden;
}
.compare-bar span{display:block;height:100%;border-radius:6px;background:#BFBDB1;transition:width .4s ease}
.compare-col.right .compare-bar{background:#EDEBDD}
.compare-col.right .compare-bar span{background:var(--lime)}
.compare-divider{background:var(--line);position:relative;min-height:220px}
.compare-divider span{
  position:absolute;left:50%;top:0;transform:translate(-50%,-50%);
  background:var(--green);color:#fff;font-size:12px;font-weight:700;
  padding:4px 10px;border-radius:4px;letter-spacing:1px;white-space:nowrap;
}

/* ============ 最新信息 CMS ============ */
.cms-top{
  display:grid;grid-template-columns:4fr 8fr;gap:0;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);margin-bottom:24px;
  transition:box-shadow .26s ease,border-color .26s ease,transform .26s ease;
}
.cms-top:hover{box-shadow:var(--shadow-2);border-color:#D5D2C4;transform:translateY(-3px)}
.cms-top .cms-media{position:relative;min-height:240px}
.cms-top .cms-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.cms-top .cms-body{padding:32px 34px;display:flex;flex-direction:column;justify-content:center}
.cms-top h3{font-size:24px;margin:14px 0 12px;transition:color .2s ease}
.cms-top:hover h3{color:var(--green)}
.cms-top p{font-size:15px;color:var(--muted);line-height:1.85;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:700;
  background:rgba(15,95,76,.09);color:var(--green);
}
.badge.amber{background:rgba(255,138,60,.14);color:#A54A0C}

.cms-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cms-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.cms-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D5D2C4}
.cms-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.cms-card .cms-card-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.cms-card h4{font-size:17px;line-height:1.5;margin:12px 0 10px;transition:color .2s ease}
.cms-card:hover h4{color:var(--green)}
.cms-card p{font-size:14px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px}
.cms-card .cms-meta{margin-top:auto}
.cms-empty{
  border:1px dashed var(--line);border-radius:var(--r-card);
  background:var(--white);padding:56px 24px;text-align:center;
}
.cms-empty p{color:var(--muted);font-size:15px;margin-bottom:16px}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;align-items:center;gap:16px;width:100%;
  padding:22px 0;text-align:left;font-size:17px;font-weight:700;color:var(--ink);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--green)}
.faq-idx{
  font-family:var(--num-font);font-size:13px;font-weight:700;
  width:34px;height:28px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:4px;color:var(--muted);flex-shrink:0;
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.faq-item.is-open .faq-idx{border-color:var(--green);color:var(--green);background:rgba(15,95,76,.07)}
.faq-q .q-text{flex:1;min-width:0}
.faq-icon{
  position:relative;width:22px;height:22px;flex-shrink:0;
  transition:transform .3s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--green);border-radius:2px;
  transition:opacity .3s ease;
}
.faq-icon::before{left:0;right:0;top:10px;height:2px}
.faq-icon::after{top:0;bottom:0;left:10px;width:2px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .34s ease;
}
.faq-a-inner{
  padding:0 0 24px 50px;font-size:15px;line-height:1.9;color:var(--muted);
}
.faq-a-inner strong{color:var(--ink);font-weight:700}

/* ============ 转化表单 ============ */
.cta-section{background:var(--dark);color:#D9E2DD;padding:var(--sec-y) 0}
.cta-grid{display:grid;grid-template-columns:8fr 4fr;gap:40px;align-items:start}
.cta-head h2{color:#fff;margin-bottom:14px}
.cta-head p{color:#9FB3AC;font-size:15px;max-width:520px}
.form-card{
  margin-top:32px;background:#fff;border-radius:var(--r-card);
  padding:32px;box-shadow:0 24px 48px -28px rgba(0,0,0,.5);
  color:var(--ink);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{margin-bottom:20px}
.field label{display:block;font-size:14px;font-weight:700;margin-bottom:8px;color:var(--ink)}
.field .req{color:var(--amber);margin-left:4px}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-input);
  background:var(--bg);padding:12px 14px;font-size:15px;color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--green);background:#fff;
  box-shadow:0 0 0 3px rgba(15,95,76,.12);
}
.field textarea{min-height:120px;resize:vertical;line-height:1.8}
.field.has-error input,.field.has-error select,.field.has-error textarea{
  border-color:var(--amber);border-width:2px;
}
.field .err{display:none;font-size:13px;color:#A54A0C;margin-top:6px}
.field.has-error .err{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--muted);margin-bottom:22px}
.check-row input{width:18px;height:18px;margin-top:4px;accent-color:var(--green);flex-shrink:0}
.form-success{
  display:none;text-align:center;padding:40px 20px;
}
.form-success .ok{
  width:56px;height:56px;border-radius:50%;background:rgba(200,247,81,.5);
  color:var(--green);display:flex;align-items:center;justify-content:center;
  margin:0 auto 18px;font-size:26px;font-weight:800;
}
.form-success h3{margin-bottom:10px}
.form-success p{color:var(--muted);font-size:15px}
.form-card.is-sent .form-body{display:none}
.form-card.is-sent .form-success{display:block}

.cta-side{display:flex;flex-direction:column;gap:16px;margin-top:32px}
.cta-side-item{
  border:1px solid rgba(217,226,221,.16);border-radius:12px;
  padding:20px;background:rgba(255,255,255,.03);
}
.cta-side-item .num{
  font-family:var(--num-font);font-size:13px;font-weight:700;color:var(--lime);
  display:block;margin-bottom:10px;letter-spacing:1px;
}
.cta-side-item h4{font-size:16px;margin-bottom:6px;color:#fff}
.cta-side-item p{font-size:14px;color:#9FB3AC;line-height:1.8}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark-2);color:#D9E2DD;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand .brand-text{color:#fff}
.footer-brand p{font-size:14px;color:#8FA69E;line-height:1.9;margin-top:16px;max-width:300px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:700;letter-spacing:.4px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:#9FB3AC;transition:color .2s ease}
.footer-col a:hover{color:var(--lime)}
.footer-contact p{font-size:14px;color:#9FB3AC;line-height:1.9}
.footer-bottom{
  border-top:1px solid rgba(217,226,221,.14);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:#7E958D;
}
.footer-bottom a{color:#9FB3AC}
.footer-bottom a:hover{color:var(--lime)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  :root{--maxw:1140px}
  .hero-grid{gap:40px}
  .matrix-grid{gap:20px}
}
@media (max-width:991px){
  :root{--sec-y:72px}
  .nav-links{display:none}
  .nav-right{border-left:0;padding-left:0;flex:0 0 auto}
  .menu-toggle{display:inline-flex}
  .hero{padding:44px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero h1{max-width:none}
  .hero::before{width:100%;height:52%;bottom:auto}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .m-card.large{grid-column:span 12}
  .m-card.small{grid-column:span 6}
  .m-card.wide{grid-column:span 12;flex-direction:column;align-items:flex-start;text-align:left}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .compare-wrap{grid-template-columns:1fr;gap:28px}
  .compare-divider{display:none}
  .compare-col.left{border-bottom:1px solid var(--line);padding-bottom:24px}
  .cms-top{grid-template-columns:1fr}
  .cms-top .cms-media{min-height:200px}
  .cms-top .cms-media img{position:relative;height:200px}
  .cms-grid{grid-template-columns:repeat(2,1fr)}
  .cta-grid{grid-template-columns:1fr;gap:12px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--sec-y:56px}
  .container{padding:0 16px}
  .nav-wrap{height:56px}
  .brand-text{font-size:16px}
  .hero-actions .btn{flex:1 1 auto}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:24px}
  .cms-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .faq-a-inner{padding-left:0}
  .faq-q{font-size:16px;align-items:flex-start}
  .faq-idx{margin-top:2px}
  .section-head{margin-bottom:28px}
}
@media (max-width:575px){
  .metrics-grid{grid-template-columns:1fr}
  .m-card.small{grid-column:span 12}
  .hero-points{font-size:13px}
  .hero-points li + li{padding-left:0}
  .float-card{right:12px;bottom:12px;padding:10px 14px}
  .float-card strong{font-size:26px}
  .search-form{flex-direction:column}
  .search-form .btn{width:100%}
  .cms-top .cms-body{padding:22px}
}

/* roulang page: article */
:root{
  --ink:#17211E;
  --green:#0F5F4C;
  --green-deep:#0B4939;
  --lime:#C8F751;
  --amber:#FF8A3C;
  --dark:#12241F;
  --bg:#F6F5EF;
  --paper:#FFFFFF;
  --line:#E2E0D6;
  --muted:#6B7A74;
  --soft:#EFEEE6;
  --r-card:16px;
  --r-img:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,33,29,.06);
  --sh-2:0 12px 32px -16px rgba(18,33,29,.28);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"DIN Alternate","Barlow Semi Condensed",ui-monospace,"SFMono-Regular",monospace;
  --container:1200px;
  --gap:24px;
  --sec-y:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;height:auto;display:block;}
a{color:var(--green);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--green-deep);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:2px;
}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){
  .container{max-width:1280px;}
}
.section{padding:var(--sec-y) 0;}
.section--tight{padding:64px 0;}
.section--dark{background:var(--dark);color:#D9E2DD;}
.section--paper{background:var(--paper);}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* 顶部阅读进度 */
.read-progress{
  position:fixed;
  top:0;left:0;right:0;
  height:3px;
  background:transparent;
  z-index:300;
  pointer-events:none;
}
.read-progress span{
  display:block;
  height:100%;
  width:0;
  background:var(--lime);
  transition:width .12s linear;
}

/* 导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:200;
  background:rgba(246,245,239,.96);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
  backdrop-filter:saturate(120%) blur(2px);
}
.site-header.is-stuck{
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:64px;
}
.header-content{
  display:flex;
  align-items:center;
  gap:32px;
  flex:7 1 0;
  min-width:0;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex:5 1 0;
  justify-content:flex-end;
  padding-left:24px;
  border-left:1px solid var(--line);
  min-width:0;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
  font-weight:800;
  letter-spacing:-.2px;
  flex:0 0 auto;
}
.brand:hover{color:var(--green);}
.brand-mark{
  width:28px;
  height:28px;
  background:var(--green);
  border-radius:7px;
  position:relative;
  flex:0 0 auto;
  clip-path:polygon(0 0,72% 0,100% 28%,100% 100%,28% 100%,0 72%);
}
.brand-mark::after{
  content:"";
  position:absolute;
  left:6px;top:6px;
  width:15px;height:3px;
  background:var(--lime);
  transform:rotate(-45deg);
  transform-origin:left center;
  box-shadow:0 6px 0 var(--lime),0 12px 0 var(--lime);
}
.brand-text{
  font-size:18px;
  line-height:1;
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
  flex-wrap:nowrap;
  overflow:hidden;
}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:64px;
  font-size:15px;
  color:var(--ink);
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:14px;
  height:3px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease;
  border-radius:2px;
}
.nav-links a:hover{color:var(--green);}
.nav-links a:hover::after,
.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.active{font-weight:700;color:var(--green);}
.search-trigger{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:38px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  color:var(--muted);
  font-size:14px;
  background:var(--paper);
  transition:border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.search-trigger:hover{
  color:var(--green);
  border-color:var(--green);
  box-shadow:var(--sh-1);
}
.search-trigger .ic{width:15px;height:15px;display:inline-block;border:2px solid currentColor;border-radius:50%;position:relative;}
.search-trigger .ic::after{
  content:"";position:absolute;width:7px;height:2px;background:currentColor;
  right:-4px;bottom:-2px;transform:rotate(45deg);border-radius:2px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:700;
  letter-spacing:.2px;
  border:2px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn .arrow{transition:transform .2s ease;font-family:var(--font-num);}
.btn:hover .arrow{transform:translateX(4px);}
.btn-primary{
  background:var(--green);
  color:#fff;
  box-shadow:var(--sh-1);
}
.btn-primary:hover{
  background:var(--green-deep);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
}
.btn-ghost{
  background:transparent;
  color:var(--green);
  border-color:var(--green);
}
.btn-ghost:hover{
  background:rgba(200,247,81,.12);
  border-color:var(--lime);
  color:var(--green-deep);
  transform:translateY(-2px);
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:700;
  color:var(--green);
  position:relative;
  padding-bottom:2px;
}
.btn-link::after{
  content:"";
  position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--lime);
  transition:width .24s ease;
}
.btn-link:hover::after{width:100%;}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--paper);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
}
.menu-toggle span{
  display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.search-layer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  box-shadow:var(--sh-1);
}
.search-layer.open{display:block;}
.search-layer .container{
  display:flex;
  align-items:center;
  gap:16px;
  padding-top:16px;
  padding-bottom:16px;
  flex-wrap:wrap;
}
.search-layer input{
  flex:1 1 320px;
  height:44px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  padding:0 14px;
  background:var(--bg);
  color:var(--ink);
}
.search-layer input:focus{border-color:var(--green);background:#fff;}
.hot-words{display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.hot-words span{font-size:13px;color:var(--muted);}
.pill{
  display:inline-flex;
  align-items:center;
  height:30px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--bg);
  border:1px solid var(--line);
  font-size:13px;
  color:var(--ink);
}
.pill:hover{border-color:var(--lime);background:rgba(200,247,81,.16);color:var(--green-deep);}

/* 移动端侧滑面板 */
.mobile-panel{
  position:fixed;
  inset:0 0 0 auto;
  width:min(320px,86vw);
  background:#fff;
  z-index:400;
  transform:translateX(100%);
  transition:transform .28s ease;
  display:flex;
  flex-direction:column;
  padding:20px;
  gap:8px;
  box-shadow:-16px 0 40px -24px rgba(18,33,29,.4);
}
.mobile-panel.open{transform:translateX(0);}
.mobile-panel .panel-head{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:8px;
}
.panel-close{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;font-size:20px;color:var(--ink);
}
.mobile-panel a{
  display:flex;align-items:center;
  min-height:44px;
  padding:0 12px;
  border-radius:10px;
  color:var(--ink);
  font-size:16px;
}
.mobile-panel a:hover,.mobile-panel a.active{background:var(--bg);color:var(--green);font-weight:700;}
.mobile-panel .btn{width:100%;margin-top:12px;}
.panel-mask{
  position:fixed;inset:0;background:rgba(18,33,29,.42);
  z-index:390;opacity:0;pointer-events:none;transition:opacity .25s ease;
}
.panel-mask.open{opacity:1;pointer-events:auto;}

/* 面包屑 */
.breadcrumb{
  padding:22px 0 0;
  font-size:14px;
  color:var(--muted);
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  line-height:1.7;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--green);}
.breadcrumb .sep{color:#B9C4BF;}
.breadcrumb .now{color:var(--ink);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* 文章头部 */
.article-head{padding:26px 0 32px;border-bottom:1px solid var(--line);}
.head-tagline{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--green);
  background:rgba(200,247,81,.18);
  border-radius:var(--r-pill);
  padding:4px 12px;
  font-weight:700;
  margin-bottom:16px;
}
.article-head h1{
  font-size:clamp(28px,4vw,44px);
  line-height:1.22;
  font-weight:800;
  letter-spacing:-.4px;
  color:var(--ink);
  max-width:900px;
}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px 18px;
  margin-top:20px;
  font-size:14px;
  color:var(--muted);
}
.chip{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--green);
  color:#fff;
  font-size:12px;
  font-weight:700;
  letter-spacing:.3px;
}
.chip--amber{background:rgba(255,138,60,.14);color:#B75A16;border:1px solid rgba(255,138,60,.4);}
.meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-dot{width:6px;height:6px;border-radius:50%;background:var(--amber);display:inline-block;}

/* 正文布局 */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:48px;
  padding-top:48px;
  padding-bottom:24px;
  align-items:start;
}
.article-main{min-width:0;}
.article-deck{
  background:var(--paper);
  border:1px solid var(--line);
  border-left:3px solid var(--lime);
  border-radius:var(--r-sm);
  padding:18px 20px;
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
  margin-bottom:32px;
}
.article-deck.empty{
  border-left-color:var(--line);
  background:transparent;
  border-style:dashed;
  color:#9AA6A1;
}
.article-body{max-width:760px;font-size:16px;line-height:1.9;color:var(--ink);}
.article-body p{margin:0 0 20px;}
.article-body h2{
  font-size:clamp(22px,2.4vw,28px);
  line-height:1.35;
  font-weight:800;
  letter-spacing:-.2px;
  margin:44px 0 16px;
  padding-left:14px;
  border-left:4px solid var(--lime);
  color:var(--ink);
}
.article-body h3{
  font-size:20px;
  line-height:1.5;
  font-weight:700;
  margin:32px 0 12px;
  color:var(--ink);
}
.article-body h4{
  font-size:17px;
  line-height:1.5;
  font-weight:700;
  margin:26px 0 10px;
}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px;}
.article-body ul li{list-style:disc;margin-bottom:8px;line-height:1.85;}
.article-body ol li{list-style:decimal;margin-bottom:8px;line-height:1.85;}
.article-body li::marker{color:var(--green);}
.article-body blockquote{
  margin:0 0 24px;
  padding:16px 20px;
  background:#FBFAF3;
  border-left:3px solid var(--green);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:#3D4A45;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  width:100%;
  height:auto;
  border-radius:12px;
  margin:10px 0 8px;
  box-shadow:var(--sh-1);
}
.article-body figure{margin:0 0 24px;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;line-height:1.7;}
.article-body a{
  color:var(--green);
  text-decoration:underline;
  text-underline-offset:3px;
  text-decoration-thickness:1px;
}
.article-body a:hover{color:var(--green-deep);background:rgba(200,247,81,.22);}
.article-body code{
  font-family:var(--font-num);
  background:var(--soft);
  border-radius:8px;
  padding:2px 7px;
  font-size:.94em;
  font-variant-numeric:tabular-nums;
}
.article-body pre{
  background:var(--soft);
  border-radius:var(--r-sm);
  padding:16px 18px;
  overflow:auto;
  margin:0 0 24px;
  font-size:14px;
  line-height:1.7;
}
.article-body pre code{background:none;padding:0;}
.article-body strong{font-weight:700;color:var(--green-deep);}
.article-body hr{border:0;height:1px;background:var(--line);margin:32px 0;}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:0 0 24px;
  font-size:15px;
  border:1px solid var(--line);
  border-radius:8px;
  overflow:hidden;
}
.article-body th,.article-body td{
  padding:12px 14px;
  text-align:left;
  border-bottom:1px solid var(--line);
}
.article-body th{background:#FBFAF3;font-weight:700;}
.article-body tr:last-child td{border-bottom:0;}

/* 侧栏 */
.article-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px;
  box-shadow:var(--sh-1);
}
.side-card h3{
  font-size:16px;
  font-weight:800;
  letter-spacing:0;
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:10px;
}
.side-card h3::before{
  content:"";
  width:8px;height:8px;
  background:var(--lime);
  border-radius:2px;
  display:inline-block;
}
.side-list{display:flex;flex-direction:column;gap:10px;}
.side-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:10px 12px;
  border-radius:10px;
  background:var(--bg);
  color:var(--ink);
  font-size:14px;
  border:1px solid transparent;
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.side-list a:hover{
  border-color:var(--lime);
  background:rgba(200,247,81,.14);
  color:var(--green-deep);
  transform:translateY(-1px);
}
.side-list a .arrow{color:var(--green);font-family:var(--font-num);}
.side-points{display:flex;flex-direction:column;gap:12px;}
.side-points li{
  display:flex;
  gap:10px;
  font-size:14px;
  line-height:1.75;
  color:#3D4A45;
}
.side-points li::before{
  content:"";
  flex:0 0 auto;
  width:6px;height:6px;
  margin-top:9px;
  border-radius:50%;
  background:var(--green);
}
.side-note{
  background:rgba(255,138,60,.08);
  border:1px solid rgba(255,138,60,.35);
  border-radius:var(--r-sm);
  padding:14px 16px;
  font-size:13px;
  line-height:1.75;
  color:#8A4A16;
}
.side-card .btn{width:100%;margin-top:6px;}
.side-contact{
  font-size:14px;
  color:var(--muted);
  line-height:1.8;
}
.side-contact strong{color:var(--ink);font-weight:700;}

/* 空状态 */
.empty-state{
  background:#FBFAF3;
  border:1px dashed #CFD6D1;
  border-radius:var(--r-card);
  padding:48px 28px;
  text-align:center;
}
.empty-state h2{font-size:20px;font-weight:800;margin-bottom:10px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px;}

/* 相关推荐 */
.related-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  margin-bottom:32px;
}
.related-head h2{
  font-size:clamp(24px,2.8vw,34px);
  font-weight:800;
  letter-spacing:-.3px;
  line-height:1.25;
}
.related-head p{color:var(--muted);font-size:15px;margin-top:8px;}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.related-card{
  display:flex;
  flex-direction:column;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.related-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-2);
  border-color:#CFD6D1;
}
.related-thumb{
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--soft);
}
.related-thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .3s ease;
}
.related-card:hover .related-thumb img{transform:scale(1.02);}
.related-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.related-body .tag{
  align-self:flex-start;
  font-size:12px;
  font-weight:700;
  color:var(--green);
  background:rgba(200,247,81,.2);
  border-radius:var(--r-pill);
  padding:3px 10px;
}
.related-body h3{
  font-size:18px;
  font-weight:800;
  line-height:1.45;
  letter-spacing:-.2px;
}
.related-body p{
  font-size:14px;
  color:var(--muted);
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.related-more{
  margin-top:auto;
  font-size:14px;
  font-weight:700;
  color:var(--green);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.related-card:hover .related-more{color:var(--green-deep);}

/* 返回入口 */
.back-actions{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  padding:8px 0 0;
}

/* 帮助条 */
.help-band{
  background:var(--dark);
  color:#D9E2DD;
  border-radius:var(--r-card);
  padding:40px;
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:32px;
  align-items:center;
}
.help-band h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:800;
  line-height:1.3;
  color:#fff;
  letter-spacing:-.3px;
}
.help-band p{
  margin-top:12px;
  font-size:15px;
  color:#B9C7C0;
  line-height:1.8;
  max-width:520px;
}
.help-band .contact-list{display:flex;flex-direction:column;gap:12px;}
.help-band .contact-list li{
  font-size:14px;
  color:#D9E2DD;
  display:flex;
  gap:10px;
  align-items:flex-start;
}
.help-band .contact-list li::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--lime);
  margin-top:9px;
  flex:0 0 auto;
}
.help-band .btn-primary{background:var(--lime);color:#0B2A22;}
.help-band .btn-primary:hover{background:#D6FF6A;color:#0B2A22;}

/* 页脚 */
.site-footer{
  background:var(--dark);
  color:#D9E2DD;
  padding:64px 0 28px;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(217,226,221,.16);
}
.footer-brand .brand{color:#fff;margin-bottom:16px;}
.footer-brand .brand:hover{color:var(--lime);}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.85;color:#9FB0A9;max-width:340px;}
.footer-col h4{
  font-size:14px;
  font-weight:800;
  color:#fff;
  letter-spacing:.4px;
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:#B9C7C0;font-size:14px;}
.footer-col a:hover{color:var(--lime);}
.footer-contact p{font-size:14px;color:#9FB0A9;line-height:1.85;margin-bottom:8px;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:24px;
  font-size:13px;
  color:#869790;
}

/* 断点 */
@media (max-width:1199px){
  :root{--sec-y:80px;}
  .article-layout{gap:36px;}
}
@media (max-width:991px){
  :root{--sec-y:72px;--gap:20px;}
  .header-content{gap:20px;}
  .nav-links{gap:18px;overflow:visible;}
  .nav-links a{height:60px;font-size:14px;}
  .header-inner{height:60px;}
  .search-trigger span.label{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .article-side{position:static;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .help-band{grid-template-columns:minmax(0,1fr);padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .nav-links,.header-actions .btn{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-actions{border-left:0;padding-left:0;flex:0 0 auto;}
  .header-inner{height:56px;}
  .article-head{padding:20px 0 26px;}
  .article-body{font-size:15.5px;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .breadcrumb .now{max-width:220px;}
  .help-band{padding:26px;}
  .site-footer{margin-top:72px;padding-top:48px;}
}
@media (max-width:575px){
  .container{padding:0 16px;}
  .brand-text{font-size:16px;}
  .article-meta{gap:8px 14px;font-size:13px;}
  .article-deck{padding:14px 16px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .back-actions .btn{width:100%;}
}

/* roulang page: category1 */
:root{
  --green:#0F5F4C;
  --green-dark:#0B4939;
  --lime:#C8F751;
  --amber:#FF8A3C;
  --amber-deep:#B85B14;
  --ink:#17211E;
  --ink-soft:#6B7A74;
  --dark:#12241F;
  --bg:#F6F5EF;
  --white:#FFFFFF;
  --line:#E2E0D6;
  --footer-text:#D9E2DD;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:12px;
  --shadow-1:0 1px 2px rgba(18,33,29,.06);
  --shadow-2:0 12px 32px -16px rgba(18,33,29,.28);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"DIN Alternate","Barlow Semi Condensed","PingFang SC","Microsoft YaHei",sans-serif;
  --maxw:1200px;
  --pad:24px;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--green);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--green-dark);}
a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible,
select:focus-visible,
textarea:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:2px;
  border-radius:6px;
}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
p{color:var(--ink);}
::selection{background:rgba(200,247,81,.45);color:var(--ink);}
.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 var(--pad);
}
@media (min-width:1440px){
  .container{max-width:1280px;}
}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:200;
  background:rgba(246,245,239,.96);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease, box-shadow .25s ease, background .25s ease;
}
.site-header.is-stuck{
  border-bottom-color:var(--line);
  box-shadow:0 6px 18px -14px rgba(18,33,29,.4);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:64px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--ink);
  font-weight:800;
  font-size:16px;
  letter-spacing:-.2px;
  line-height:1.2;
}
.brand:hover{color:var(--green);}
.brand-mark{
  width:26px;
  height:26px;
  background:var(--green);
  clip-path:polygon(0 0,70% 0,100% 30%,100% 100%,30% 100%,0 70%);
  position:relative;
  flex:0 0 auto;
}
.brand-mark::after{
  content:"";
  position:absolute;
  left:6px;
  right:6px;
  top:12px;
  height:3px;
  background:var(--lime);
  transform:rotate(-32deg);
  transform-origin:center;
}
.brand-text{white-space:nowrap;}
.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:8px;
  flex:1 1 auto;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:20px 0 18px;
  font-size:15px;
  color:var(--ink-soft);
  letter-spacing:0;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:12px;
  height:3px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s ease;
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--ink);font-weight:700;}
.nav-links a.active::after{transform:scaleX(1);}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
  flex:0 0 auto;
  border-left:1px solid var(--line);
  padding-left:20px;
}
.icon-btn{
  width:44px;
  height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  color:var(--ink-soft);
  transition:background .2s ease,color .2s ease;
}
.icon-btn:hover{background:#EDEBE1;color:var(--green);}
.icon-btn svg{width:19px;height:19px;display:block;}
.nav-toggle{display:none;}

/* buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:700;
  letter-spacing:.2px;
  line-height:1.2;
  transition:transform .2s ease, background .2s ease, box-shadow .2s ease, color .2s ease, border-color .2s ease;
  border:2px solid transparent;
  white-space:nowrap;
}
.btn .arw{transition:transform .2s ease;display:inline-block;}
.btn:hover .arw{transform:translateX(4px);}
.btn-primary{
  background:var(--green);
  color:#fff;
  box-shadow:var(--shadow-1);
}
.btn-primary:hover{background:var(--green-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  color:var(--green);
  border-color:var(--green);
}
.btn-ghost:hover{background:rgba(200,247,81,.28);border-color:var(--lime);color:var(--green-dark);transform:translateY(-2px);}
.btn-lime{
  background:var(--lime);
  color:#0B2A22;
}
.btn-lime:hover{background:#D6FF6E;color:#0B2A22;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-sm{padding:10px 16px;font-size:14px;}
.btn-block{width:100%;}

/* search layer */
.search-layer{
  position:absolute;
  left:0;
  right:0;
  top:100%;
  background:var(--white);
  border-bottom:1px solid var(--line);
  box-shadow:0 18px 30px -26px rgba(18,33,29,.5);
  overflow:hidden;
  max-height:0;
  transition:max-height .28s ease;
}
.search-layer.is-open{max-height:260px;}
.search-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  padding:22px 0;
}
.search-box{
  display:flex;
  align-items:center;
  gap:10px;
  flex:1 1 320px;
  border:1px solid var(--line);
  border-radius:12px;
  padding:10px 14px;
  background:#FBFBF6;
}
.search-box input{
  border:0;
  background:transparent;
  width:100%;
  font-size:15px;
  color:var(--ink);
  outline:none;
  min-height:26px;
}
.search-box input::placeholder{color:#9AA6A0;}
.chips{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  display:inline-flex;
  align-items:center;
  padding:7px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#FBFBF6;
  font-size:13.5px;
  color:var(--ink-soft);
  transition:all .2s ease;
}
.chip:hover{border-color:var(--green);color:var(--green);background:rgba(200,247,81,.2);}
.search-close{
  font-size:13.5px;
  color:var(--ink-soft);
  padding:8px 12px;
  border-radius:8px;
}
.search-close:hover{color:var(--green);background:#F1F0E8;}

/* mobile panel */
.overlay{
  position:fixed;
  inset:0;
  background:rgba(18,36,31,.42);
  opacity:0;
  visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
  z-index:300;
}
.overlay.is-open{opacity:1;visibility:visible;}
.mobile-panel{
  position:fixed;
  top:0;
  right:0;
  width:min(320px,86vw);
  height:100%;
  background:var(--white);
  z-index:310;
  transform:translateX(102%);
  transition:transform .3s cubic-bezier(.4,0,.2,1);
  display:flex;
  flex-direction:column;
  padding:18px 20px 28px;
  overflow-y:auto;
  box-shadow:-16px 0 40px -28px rgba(18,33,29,.6);
}
.mobile-panel.is-open{transform:translateX(0);}
.mobile-panel-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
  margin-bottom:8px;
}
.mobile-nav{display:flex;flex-direction:column;}
.mobile-nav a{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:12px 4px;
  font-size:15.5px;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-nav a.active{color:var(--green);font-weight:700;}
.mobile-nav a:hover{color:var(--green);}
.mobile-panel .btn{margin-top:20px;}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  padding:22px 0 0;
  font-size:14px;
  color:var(--ink-soft);
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
}
.breadcrumb a{color:var(--ink-soft);}
.breadcrumb a:hover{color:var(--green);}
.breadcrumb .sep{color:#B6BFBA;}

/* ---------- hero ---------- */
.page-hero{
  padding:28px 0 64px;
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:48px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  letter-spacing:.4px;
  color:var(--green);
  font-weight:700;
  padding:6px 14px 6px 10px;
  border:1px solid rgba(15,95,76,.28);
  background:rgba(200,247,81,.22);
  clip-path:polygon(0 0,100% 0,100% 70%,calc(100% - 10px) 100%,0 100%);
  margin-bottom:20px;
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--green);
}
.page-hero h1{
  font-size:clamp(32px,4.2vw,50px);
  line-height:1.18;
  font-weight:800;
  letter-spacing:-.2px;
  color:var(--ink);
}
.hero-sub{
  margin-top:18px;
  font-size:17px;
  line-height:1.8;
  color:var(--ink-soft);
  max-width:36em;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.trust-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  margin-top:26px;
  font-size:14px;
  color:var(--ink-soft);
}
.trust-row span{display:inline-flex;align-items:center;gap:8px;}
.trust-row span::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--lime);
  box-shadow:0 0 0 3px rgba(200,247,81,.28);
}
.hero-visual{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  background:#E7E5D9;
  aspect-ratio:16/11;
  box-shadow:var(--shadow-1);
}
.hero-visual img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.hero-visual .ticks{
  position:absolute;
  inset:auto 0 0 0;
  height:78px;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  gap:16px;
  padding:0 18px 16px;
  background:linear-gradient(to top,rgba(18,36,31,.62),rgba(18,36,31,0));
}
.hero-visual .ticks i{
  display:block;
  height:1px;
  background:rgba(255,255,255,.34);
  position:relative;
}
.hero-visual .ticks i::after{
  content:"";
  position:absolute;
  right:0;
  top:0;
  width:52px;
  height:6px;
  background-image:repeating-linear-gradient(to right,rgba(200,247,81,.9) 0 1px,transparent 1px 8px);
  transform:translateY(-3px);
}
.hero-badge{
  position:absolute;
  left:18px;
  top:18px;
  background:rgba(255,255,255,.94);
  border-radius:12px;
  padding:10px 14px;
  box-shadow:var(--shadow-1);
  display:flex;
  align-items:center;
  gap:10px;
}
.hero-badge .dot{
  width:8px;height:8px;border-radius:50%;background:var(--amber);
  box-shadow:0 0 0 4px rgba(255,138,60,.18);
}
.hero-badge b{font-size:13.5px;color:var(--ink);font-weight:700;}

/* ---------- section base ---------- */
.section{padding:var(--sec) 0;}
.section-tight{padding:72px 0;}
.section-alt{background:#F1F0E7;}
.section-line{border-top:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:13.5px;
  font-weight:700;
  letter-spacing:.6px;
  color:var(--green);
  margin-bottom:14px;
}
.section-kicker::before{
  content:"";
  width:24px;height:2px;background:var(--lime);
}
.section-title{
  font-size:clamp(26px,3vw,38px);
  line-height:1.25;
  font-weight:800;
  letter-spacing:-.2px;
  color:var(--ink);
  position:relative;
  padding-left:16px;
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;top:.18em;
  width:4px;
  height:.92em;
  background:var(--lime);
  border-radius:2px;
}
.section-lead{
  margin-top:16px;
  color:var(--ink-soft);
  font-size:16px;
  line-height:1.85;
}

/* ---------- steps ---------- */
.steps-grid{
  display:grid;
  grid-template-columns:repeat(5,minmax(0,1fr));
  gap:18px;
}
.step-card{
  position:relative;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px 20px 26px;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.step-card::before{
  content:"";
  position:absolute;
  left:20px;right:20px;top:0;
  height:3px;
  background:var(--lime);
  opacity:0;
  transition:opacity .22s ease;
  border-radius:0 0 3px 3px;
}
.step-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:#D6D4C7;
}
.step-card:hover::before{opacity:1;}
.step-card:not(:last-child)::after{
  content:"→";
  position:absolute;
  right:-16px;
  top:50%;
  transform:translateY(-50%);
  color:#BFC8C3;
  font-size:15px;
  z-index:2;
}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:8px;
  background:var(--green);
  color:#fff;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
}
.step-card h3{
  font-size:17px;
  line-height:1.45;
  font-weight:700;
  color:var(--ink);
  margin-bottom:10px;
}
.step-card p{
  font-size:14px;
  line-height:1.75;
  color:var(--ink-soft);
}

/* ---------- split block ---------- */
.split-block{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;
  align-items:center;
}
.figure{
  border-radius:var(--radius-card);
  overflow:hidden;
  aspect-ratio:4/3;
  background:#E7E5D9;
  box-shadow:var(--shadow-1);
}
.figure img{width:100%;height:100%;object-fit:cover;}
.split-copy h2{
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.3;
  font-weight:800;
  letter-spacing:-.2px;
  color:var(--ink);
  margin-bottom:18px;
}
.split-copy p{
  color:var(--ink-soft);
  font-size:16px;
  line-height:1.85;
  margin-bottom:16px;
}
.hint-bar{
  position:relative;
  background:#F1F0E7;
  border-left:3px solid var(--green);
  border-radius:8px;
  padding:16px 18px 16px 20px;
  font-size:14.5px;
  color:var(--ink);
  line-height:1.8;
  margin-top:8px;
}
.hint-tag{
  display:inline-block;
  background:var(--amber);
  color:#3A1B06;
  font-size:12px;
  font-weight:700;
  letter-spacing:.6px;
  padding:3px 10px;
  margin-right:10px;
  clip-path:polygon(0 0,100% 0,100% 68%,calc(100% - 8px) 100%,0 100%);
}
.mini-list{display:grid;gap:12px;margin-top:20px;}
.mini-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15px;
  color:var(--ink);
}
.mini-list li::before{
  content:"";
  flex:0 0 auto;
  width:8px;height:8px;
  margin-top:9px;
  background:var(--lime);
  border:1px solid var(--green);
  border-radius:2px;
}

/* ---------- check list ---------- */
.checks{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.check-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) 130px 116px;
  gap:20px;
  align-items:center;
  padding:18px 24px;
  border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.check-row:last-child{border-bottom:0;}
.check-row:hover{background:#FBFAF3;}
.check-row .ck-title{
  font-size:15.5px;
  color:var(--ink);
  font-weight:600;
}
.check-row .ck-note{
  font-size:14px;
  color:var(--ink-soft);
}
.badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:5px 12px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.2px;
  white-space:nowrap;
}
.badge-ok{background:rgba(200,247,81,.42);color:#0B4939;}
.badge-warn{background:rgba(255,138,60,.18);color:var(--amber-deep);}
.badge-idle{background:#EFEEE6;color:#6B7A74;}

/* ---------- faq ---------- */
.faq{
  border-top:1px solid var(--line);
}
.faq-item{
  border-bottom:1px solid var(--line);
}
.faq-item summary{
  display:flex;
  align-items:center;
  gap:18px;
  padding:22px 0;
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-num{
  flex:0 0 auto;
  width:34px;height:34px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:8px;
  background:var(--white);
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:14px;
  color:var(--green);
  font-weight:700;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.faq-q{
  flex:1 1 auto;
  font-size:16.5px;
  font-weight:700;
  color:var(--ink);
  line-height:1.5;
}
.faq-item:hover .faq-q{color:var(--green-dark);}
.faq-icon{
  flex:0 0 auto;
  width:26px;height:26px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--green);
  font-size:20px;
  line-height:1;
  transition:transform .24s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-item[open] .faq-num{background:var(--green);color:#fff;border-color:var(--green);}
.faq-body{
  padding:0 0 24px 52px;
  font-size:15px;
  line-height:1.9;
  color:var(--ink-soft);
  max-width:64em;
}
.faq-body p{margin-bottom:10px;color:var(--ink-soft);}
.faq-body p:last-child{margin-bottom:0;}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--dark);
  color:var(--footer-text);
  padding:80px 0;
}
.cta-inner{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:48px;
  align-items:center;
}
.cta-band h2{
  font-size:clamp(26px,3vw,36px);
  line-height:1.28;
  font-weight:800;
  color:#fff;
  letter-spacing:-.2px;
  margin-bottom:16px;
}
.cta-band p{
  color:#B9C7C1;
  font-size:16px;
  line-height:1.85;
  max-width:38em;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:26px;
}
.cta-side{
  border-left:1px solid rgba(217,226,221,.18);
  padding-left:32px;
}
.cta-side ul{display:grid;gap:16px;}
.cta-side li{
  display:flex;
  gap:12px;
  font-size:14.5px;
  line-height:1.75;
  color:#C7D3CE;
}
.cta-side li::before{
  content:"";
  flex:0 0 auto;
  width:8px;height:8px;
  margin-top:8px;
  border-radius:2px;
  background:var(--lime);
}

/* ---------- related ---------- */
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.related-card{
  display:flex;
  flex-direction:column;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
  color:var(--ink);
}
.related-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:#D6D4C7;
}
.related-thumb{
  aspect-ratio:4/3;
  overflow:hidden;
  background:#E7E5D9;
}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.related-card:hover .related-thumb img{transform:scale(1.02);}
.related-body{
  padding:20px 22px 24px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.related-tag{
  align-self:flex-start;
  font-size:12.5px;
  font-weight:700;
  color:var(--green);
  background:rgba(200,247,81,.28);
  padding:4px 12px;
  border-radius:999px;
}
.related-body h3{
  font-size:18px;
  font-weight:700;
  line-height:1.45;
  color:var(--ink);
}
.related-card:hover .related-body h3{color:var(--green-dark);}
.related-body p{
  font-size:14px;
  line-height:1.75;
  color:var(--ink-soft);
}
.related-more{
  margin-top:6px;
  font-size:14px;
  font-weight:700;
  color:var(--green);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.related-card:hover .related-more{gap:10px;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--dark);
  color:var(--footer-text);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.6fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.3fr);
  gap:40px;
  padding-bottom:52px;
}
.footer-brand .brand{
  color:#fff;
  margin-bottom:16px;
}
.footer-brand .brand:hover{color:var(--lime);}
.footer-brand .brand-mark{background:var(--lime);}
.footer-brand .brand-mark::after{background:var(--dark);}
.footer-brand p{
  color:#A9B9B3;
  font-size:14px;
  line-height:1.85;
  max-width:34em;
}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:18px;
  letter-spacing:.2px;
}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{
  color:#B9C7C1;
  font-size:14px;
}
.footer-col a:hover{color:var(--lime);}
.footer-contact p{
  font-size:14px;
  line-height:1.8;
  color:#A9B9B3;
  margin-bottom:10px;
}
.footer-bottom{
  border-top:1px solid rgba(217,226,221,.16);
  padding:22px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13.5px;
  color:#8FA29B;
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  :root{--sec:84px;}
  .nav-links{gap:20px;}
  .steps-grid{gap:14px;}
  .step-card:not(:last-child)::after{right:-13px;}
}
@media (max-width:991px){
  :root{--pad:20px;--sec:72px;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{min-height:60px;gap:16px;}
  .header-actions{border-left:0;padding-left:0;gap:8px;}
  .header-actions .btn-sm{display:none;}
  .brand{font-size:15px;}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .page-hero{padding-bottom:48px;}
  .steps-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
  .step-card:not(:last-child)::after{display:none;}
  .split-block{grid-template-columns:minmax(0,1fr);gap:32px;}
  .figure{aspect-ratio:16/10;}
  .cta-inner{grid-template-columns:minmax(0,1fr);gap:32px;}
  .cta-side{border-left:0;padding-left:0;border-top:1px solid rgba(217,226,221,.18);padding-top:26px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .related-card:last-child{grid-column:1 / -1;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .check-row{grid-template-columns:minmax(0,1fr) 120px;gap:14px;}
  .check-row .ck-note{display:none;}
}
@media (max-width:767px){
  :root{--sec:56px;--pad:16px;}
  body{font-size:15px;line-height:1.8;}
  .header-inner{min-height:56px;}
  .brand-text{font-size:14.5px;}
  .steps-grid{grid-template-columns:minmax(0,1fr);}
  .page-hero h1{font-size:clamp(28px,7vw,36px);}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{flex:1 1 auto;}
  .section-head{margin-bottom:28px;}
  .faq-body{padding-left:0;}
  .check-row{grid-template-columns:minmax(0,1fr);}
  .check-row .badge{justify-self:start;}
  .cta-band{padding:56px 0;}
  .cta-actions .btn{flex:1 1 auto;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .related-card:last-child{grid-column:auto;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;font-size:13px;}
  .site-footer{padding-top:52px;}
  .search-inner{padding:16px 0;}
}
@media (max-width:520px){
  .eyebrow{font-size:12.5px;}
  .trust-row{font-size:13px;gap:10px;}
  .step-card{padding:20px 18px 22px;}
  .faq-item summary{gap:12px;padding:18px 0;}
  .faq-q{font-size:15.5px;}
  .faq-num{width:30px;height:30px;font-size:13px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category2 */
/* ================= 设计变量 ================= */
:root{
  --green:#0F5F4C;
  --green-deep:#0B4939;
  --lime:#C8F751;
  --amber:#FF8A3C;
  --ink:#17211E;
  --dark:#12241F;
  --paper:#F6F5EF;
  --line:#E2E0D6;
  --muted:#6B7A74;
  --white:#ffffff;
  --r-card:16px;
  --r-btn:12px;
  --r-img:16px;
  --sh-1:0 1px 2px rgba(18,33,29,.06);
  --sh-2:0 12px 32px -16px rgba(18,33,29,.28);
  --num-font:"DIN Alternate","Barlow Semi Condensed","Helvetica Neue",Arial,sans-serif;
  --sp-section:96px;
  --header-h:64px;
}
/* ================= reset / base ================= */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  font-weight:400;
}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.2px;line-height:1.25;}
p{margin:0 0 18px;}
ul,ol{margin:0 0 18px;padding-left:22px;}
li{margin-bottom:8px;line-height:1.85;}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--green);text-decoration:none;transition:color .18s ease;}
a:visited{color:var(--green);}
a:hover,a:focus{color:var(--green-deep);}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
::selection{background:rgba(200,247,81,.55);color:var(--ink);}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1440px){.container{max-width:1280px;}}
.section{padding-top:var(--sp-section);padding-bottom:var(--sp-section);}
.section--tight{padding-top:72px;padding-bottom:72px;}
.section--alt{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{margin-bottom:32px;max-width:760px;}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--green);
  background:rgba(200,247,81,.24);
  border:1px solid rgba(15,95,76,.16);
  padding:4px 12px;border-radius:999px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(26px,3vw,38px);margin-bottom:12px;}
.section-head p{color:var(--muted);margin:0;font-size:16px;}
.num{font-family:var(--num-font);font-variant-numeric:tabular-nums;letter-spacing:0;}
/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:12px 22px;border-radius:var(--r-btn);
  font-size:16px;font-weight:700;line-height:1.2;
  border:2px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  text-align:center;
}
.btn-primary{background:var(--green);color:var(--white);box-shadow:var(--sh-1);}
.btn-primary:visited{color:var(--white);}
.btn-primary:hover,.btn-primary:focus{background:var(--green-deep);color:var(--white);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:hover .btn-arrow,.btn-primary:focus .btn-arrow{transform:translateX(4px);}
.btn-arrow{display:inline-block;transition:transform .2s ease;}
.btn-ghost{background:transparent;border-color:var(--green);color:var(--green);}
.btn-ghost:hover,.btn-ghost:focus{background:rgba(200,247,81,.12);border-color:var(--lime);color:var(--green-deep);}
.btn-sm{min-height:40px;padding:8px 16px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.btn-light{background:var(--lime);color:var(--dark);}
.btn-light:hover,.btn-light:focus{background:#d7ff74;color:var(--dark);transform:translateY(-2px);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:15px;color:var(--green);
  border-bottom:1px solid transparent;padding-bottom:2px;
}
.link-arrow:hover,.link-arrow:focus{color:var(--green-deep);border-bottom-color:var(--green-deep);}
/* ================= 头部导航 ================= */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,245,239,.96);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.site-header.is-stuck{
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--line);
  box-shadow:0 6px 18px -14px rgba(18,33,29,.4);
}
.header-inner{
  display:flex;align-items:center;gap:0;
  min-height:var(--header-h);
}
.nav-cluster{display:flex;align-items:center;}
.nav-cluster-content{flex:7 1 0;min-width:0;gap:28px;}
.nav-cluster-visual{flex:5 1 0;min-width:0;justify-content:flex-end;gap:14px;}
.nav-split{width:1px;height:26px;background:var(--line);flex:0 0 1px;margin:0 20px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-text{
  font-size:17px;font-weight:800;letter-spacing:-.2px;color:var(--ink);
  white-space:nowrap;
}
.brand:hover .brand-text{color:var(--green-deep);}
.brand-mark{
  width:28px;height:28px;flex:0 0 28px;position:relative;
  background:var(--green);
  clip-path:polygon(0 0,100% 0,100% 72%,72% 100%,0 100%);
  border-radius:4px;
  overflow:hidden;
}
.brand-mark::after{
  content:"";position:absolute;left:-2px;bottom:6px;
  width:26px;height:5px;background:var(--lime);
  transform:rotate(-32deg);transform-origin:left center;
}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-links a{
  position:relative;display:inline-block;
  font-size:15px;font-weight:600;color:var(--ink);
  padding:6px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:3px;
  background:var(--lime);transform:scaleX(0);transform-origin:left center;
  transition:transform .22s ease;
}
.nav-links a:hover,.nav-links a:focus{color:var(--green-deep);}
.nav-links a:hover::after,.nav-links a:focus::after{transform:scaleX(1);}
.nav-links a.active{color:var(--green-deep);font-weight:800;}
.nav-links a.active::after{transform:scaleX(1);}
.search-toggle{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;
  border:1px solid var(--line);border-radius:999px;
  background:var(--white);color:var(--muted);
  font-size:14px;transition:border-color .2s ease,color .2s ease,box-shadow .2s ease;
  min-width:0;
}
.search-toggle span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.search-toggle:hover,.search-toggle:focus{border-color:var(--green);color:var(--green-deep);box-shadow:var(--sh-1);}
.search-toggle svg{flex:0 0 16px;}
.nav-burger{
  display:none;width:44px;height:44px;flex:0 0 44px;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  border-radius:10px;border:1px solid var(--line);background:var(--white);
}
.nav-burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.search-layer{
  display:none;
  position:absolute;left:0;right:0;top:100%;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--line);
  box-shadow:0 18px 30px -24px rgba(18,33,29,.5);
  padding:20px 0 22px;
}
.search-layer.is-open{display:block;}
.search-layer form{display:flex;gap:12px;align-items:center;}
.search-layer input[type="search"]{
  flex:1 1 auto;height:48px;padding:0 16px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--paper);color:var(--ink);font-size:15px;
}
.search-layer input[type="search"]:focus{border-color:var(--green);background:var(--white);}
.hot-terms{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;align-items:center;}
.hot-terms .label{font-size:13px;color:var(--muted);margin-right:4px;}
.hot-terms button{
  padding:6px 14px;border-radius:999px;border:1px solid var(--line);
  background:var(--paper);font-size:13px;color:var(--green-deep);
  transition:background-color .18s ease,border-color .18s ease;
}
.hot-terms button:hover,.hot-terms button:focus{background:rgba(200,247,81,.3);border-color:var(--green);}
/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(18,33,29,.42);
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);
  background:var(--white);z-index:100;
  transform:translateX(104%);transition:transform .28s ease;
  display:flex;flex-direction:column;gap:22px;
  padding:18px 20px 28px;overflow-y:auto;
  box-shadow:-24px 0 48px -30px rgba(18,33,29,.6);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer-head .brand-text{font-size:16px;}
.drawer-close{
  width:44px;height:44px;flex:0 0 44px;border-radius:10px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--ink);background:var(--paper);
}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line);}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:12px 2px;font-size:16px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--green-deep);font-weight:800;}
.drawer-nav a span{color:var(--muted);font-size:15px;}
.drawer-note{font-size:13px;color:var(--muted);line-height:1.7;margin:0;}
/* ================= 面包屑 ================= */
.breadcrumb{padding-top:24px;}
.breadcrumb ol{
  list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin:0;padding:0;font-size:14px;color:var(--muted);
}
.breadcrumb li{margin:0;display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"›";color:#b9c1bb;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover,.breadcrumb a:focus{color:var(--green-deep);}
.breadcrumb [aria-current="page"]{color:var(--ink);font-weight:600;}
/* ================= Hero ================= */
.hero{padding-top:22px;padding-bottom:56px;position:relative;overflow:hidden;}
.hero::before{
  content:"";position:absolute;right:-80px;top:40px;width:340px;height:340px;
  border-radius:50%;background:radial-gradient(circle,rgba(200,247,81,.28),rgba(200,247,81,0) 68%);
  pointer-events:none;
}
.hero-grid{position:relative;z-index:1;}
.hero-copy .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--green-deep);
  background:rgba(200,247,81,.32);border:1px solid rgba(15,95,76,.18);
  padding:5px 13px;border-radius:999px;margin-bottom:18px;
}
.hero h1{
  font-size:clamp(32px,4.4vw,56px);line-height:1.18;margin-bottom:18px;
  max-width:16em;
}
.hero h1 em{font-style:normal;position:relative;white-space:nowrap;}
.hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:8px;
  background:var(--lime);opacity:.55;z-index:-1;border-radius:2px;
}
.hero-sub{
  font-size:clamp(16px,1.5vw,19px);color:var(--green-deep);font-weight:600;
  margin-bottom:14px;
}
.hero-lead{color:var(--muted);font-size:16px;max-width:38em;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:10px 20px;font-size:14px;color:var(--muted);
  border-top:1px solid var(--line);padding-top:18px;max-width:34em;
}
.hero-trust span{display:inline-flex;align-items:center;gap:8px;}
.hero-trust span::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--green);flex:0 0 6px;
}
.hero-visual{
  position:relative;margin:0;border-radius:var(--r-img);overflow:hidden;
  aspect-ratio:16/11;background:var(--line);box-shadow:var(--sh-2);
}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-visual::after{
  content:"";position:absolute;inset:auto 0 0 0;height:78px;
  background:linear-gradient(180deg,rgba(18,33,29,0),rgba(18,33,29,.55));
}
.hero-ticks{
  position:absolute;left:0;right:0;bottom:0;height:60px;z-index:2;
  background-image:repeating-linear-gradient(to right,rgba(255,255,255,.55) 0 1px,transparent 1px 22px);
  opacity:.6;pointer-events:none;
}
.hero-chip{
  position:absolute;left:18px;bottom:18px;z-index:3;
  background:var(--white);border-radius:14px;padding:10px 16px;
  display:flex;align-items:baseline;gap:8px;box-shadow:var(--sh-2);
  border-left:3px solid var(--lime);
}
.hero-chip .n{font-family:var(--num-font);font-variant-numeric:tabular-nums;font-size:26px;font-weight:800;color:var(--green-deep);line-height:1;}
.hero-chip .t{font-size:13px;color:var(--muted);}
/* ================= 正文布局 ================= */
.layout-cell-main{min-width:0;}
.layout-cell-side{min-width:0;}
.prose{background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);padding:38px 36px 30px;box-shadow:var(--sh-1);}
.prose h2{
  font-size:clamp(22px,2.2vw,29px);line-height:1.35;
  padding-left:16px;position:relative;margin:40px 0 16px;
}
.prose h2:first-child{margin-top:0;}
.prose h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--lime);
}
.prose h3{font-size:19px;margin:28px 0 12px;font-weight:800;}
.prose p{font-size:16px;line-height:1.9;color:#2b3733;margin-bottom:20px;}
.prose ul,.prose ol{padding-left:24px;margin-bottom:20px;}
.prose li{font-size:16px;line-height:1.85;color:#2b3733;}
.prose li strong{color:var(--ink);font-weight:700;}
.prose .step-num{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:26px;height:26px;border-radius:8px;background:var(--green);color:var(--white);
  font-family:var(--num-font);font-size:13px;font-weight:700;margin-right:8px;
  font-variant-numeric:tabular-nums;
}
.code-inline{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  font-size:14px;background:var(--paper);border:1px solid var(--line);
  border-radius:8px;padding:1px 7px;color:var(--green-deep);
}
/* 提示条 */
.tip{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--paper);border:1px solid var(--line);border-left:3px solid var(--green);
  border-radius:0 12px 12px 0;padding:16px 18px;margin:0 0 24px;
}
.tip .tip-tag{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  background:var(--green);color:var(--white);
  font-size:12px;font-weight:700;letter-spacing:.08em;
  padding:4px 9px;border-radius:2px;margin-top:2px;
}
.tip p{margin:0;font-size:15px;line-height:1.8;color:#33403b;}
.tip.is-amber{border-left-color:var(--amber);}
.tip.is-amber .tip-tag{background:var(--amber);color:#3a1d05;}
/* 引用块 */
.prose blockquote{
  margin:0 0 24px;padding:18px 22px;background:var(--paper);
  border-left:3px solid var(--green);border-radius:0 12px 12px 0;
  color:#33403b;font-size:15.5px;line-height:1.85;
}
.prose blockquote p:last-child{margin-bottom:0;}
/* ================= 侧栏卡 ================= */
.side-stack{position:sticky;top:calc(var(--header-h) + 24px);display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
}
.side-card h3{font-size:17px;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:8px;height:8px;background:var(--lime);border-radius:2px;flex:0 0 8px;}
.checklist{list-style:none;margin:0 0 20px;padding:0;}
.checklist li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;line-height:1.7;color:#33403b;
  padding:9px 0;border-bottom:1px dashed var(--line);margin:0;
}
.checklist li:last-child{border-bottom:0;}
.checklist .tick{
  flex:0 0 18px;width:18px;height:18px;border-radius:50%;
  background:rgba(200,247,81,.55);border:1px solid var(--green);
  display:inline-flex;align-items:center;justify-content:center;
  margin-top:4px;
}
.checklist .tick::after{content:"";width:6px;height:3px;border-left:1.6px solid var(--green-deep);border-bottom:1.6px solid var(--green-deep);transform:rotate(-45deg) translateY(-1px);}
.side-cta{margin-bottom:14px;}
.side-note{font-size:13px;color:var(--muted);line-height:1.7;margin:0;}
.side-note a{color:var(--green-deep);font-weight:600;}
.side-figure{margin:0;border-radius:12px;overflow:hidden;aspect-ratio:4/3;background:var(--paper);}
.side-figure img{width:100%;height:100%;object-fit:cover;}
.side-meta{
  display:flex;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--muted);margin-top:12px;
}
.side-meta strong{color:var(--green-deep);font-family:var(--num-font);font-variant-numeric:tabular-nums;font-size:16px;}
/* ================= 检查清单板块 ================= */
.check-rows{display:flex;flex-direction:column;gap:12px;}
.check-row{
  display:grid;grid-template-columns:56px 1fr auto;gap:18px;align-items:center;
  background:var(--white);border:1px solid var(--line);border-radius:14px;
  padding:18px 22px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.check-row:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#cfd6cc;}
.check-row .idx{
  font-family:var(--num-font);font-variant-numeric:tabular-nums;
  font-size:20px;font-weight:800;color:var(--green);
  border:1px solid var(--line);border-radius:8px;
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  background:var(--paper);
}
.check-row h3{font-size:17px;margin-bottom:4px;}
.check-row p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.75;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:700;padding:4px 11px;border-radius:999px;
  white-space:nowrap;
}
.badge-ok{background:rgba(200,247,81,.32);color:var(--green-deep);border:1px solid rgba(15,95,76,.18);}
.badge-warn{background:rgba(255,138,60,.14);color:#a7440d;border:1px solid rgba(255,138,60,.4);}
/* ================= FAQ ================= */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);background:transparent;}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:16px;
  padding:22px 4px;font-weight:700;font-size:17px;color:var(--ink);
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--green-deep);}
.faq-num{
  flex:0 0 40px;width:40px;height:40px;border-radius:8px;
  border:1px solid var(--line);background:var(--white);
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--num-font);font-variant-numeric:tabular-nums;
  font-size:14px;font-weight:800;color:var(--green);
}
.faq-q{flex:1 1 auto;min-width:0;}
.faq-icon{
  flex:0 0 22px;width:22px;height:22px;position:relative;
  transition:transform .22s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--green);border-radius:2px;
}
.faq-icon::before{left:0;right:0;top:10px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:10px;width:2px;transition:opacity .22s ease;}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-item[open] .faq-icon::after{opacity:1;}
.faq-a{padding:0 4px 24px 60px;}
.faq-a p{margin:0 0 12px;font-size:15px;line-height:1.9;color:#33403b;}
.faq-a p:last-child{margin-bottom:0;}
/* ================= 相关分类卡 ================= */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.related-card{
  display:flex;flex-direction:column;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  color:var(--ink);
}
.related-card:visited{color:var(--ink);}
.related-card:hover,.related-card:focus{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#cfd6cc;color:var(--ink);}
.related-thumb{aspect-ratio:16/10;background:var(--paper);overflow:hidden;}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.related-card:hover .related-thumb img{transform:scale(1.02);}
.related-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto;}
.related-body .cat-tag{
  align-self:flex-start;font-size:12px;font-weight:700;letter-spacing:.04em;
  color:var(--green-deep);background:rgba(200,247,81,.3);
  border-radius:999px;padding:3px 10px;
}
.related-body h3{font-size:18px;line-height:1.4;}
.related-body p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.75;}
.related-body .go{margin-top:auto;padding-top:10px;font-size:14px;font-weight:700;color:var(--green);display:inline-flex;align-items:center;gap:6px;}
.related-card:hover .go .arrow{transform:translateX(4px);}
.go .arrow{transition:transform .2s ease;display:inline-block;}
/* ================= 深色 CTA ================= */
.cta-band{background:var(--dark);color:#D9E2DD;padding:72px 0;position:relative;overflow:hidden;}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,247,81,.18),rgba(200,247,81,0) 70%);
}
.cta-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:center;
}
.cta-band h2{color:var(--white);font-size:clamp(24px,2.6vw,34px);margin-bottom:14px;}
.cta-band p{color:#c3cfc9;margin:0;font-size:15.5px;line-height:1.9;max-width:44em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}
.cta-band .btn-ghost{border-color:rgba(217,226,221,.5);color:#E6EDE9;}
.cta-band .btn-ghost:hover,.cta-band .btn-ghost:focus{background:rgba(200,247,81,.14);border-color:var(--lime);color:#fff;}
/* ================= 页脚 ================= */
.site-footer{background:var(--dark);color:#D9E2DD;padding:64px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;
  padding-bottom:44px;
}
.footer-brand .brand-text{color:var(--white);}
.footer-brand .brand-mark{background:var(--lime);}
.footer-brand .brand-mark::after{background:var(--green);}
.footer-brand p{color:#a9b8b2;font-size:14px;line-height:1.85;margin:16px 0 0;max-width:30em;}
.footer-col h4{color:var(--white);font-size:15px;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:#a9b8b2;font-size:14px;transition:color .18s ease;}
.footer-col a:hover,.footer-col a:focus{color:var(--lime);}
.footer-contact p{color:#a9b8b2;font-size:14px;line-height:1.8;margin:0 0 10px;}
.footer-bottom{
  border-top:1px solid rgba(217,226,221,.16);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:#8fa09a;
}
/* ================= 响应式 ================= */
@media (max-width:1199px){
  :root{--sp-section:80px;}
  .nav-links{gap:20px;}
  .search-toggle span{display:none;}
  .search-toggle{padding:0 12px;}
}
@media (max-width:991px){
  :root{--sp-section:72px;--header-h:60px;}
  .nav-links{display:none;}
  .nav-cluster-visual .btn-primary{display:none;}
  .nav-split{margin:0 14px;}
  .nav-burger{display:flex;}
  .search-toggle{display:none;}
  .hero{padding-bottom:44px;}
  .hero-copy{margin-bottom:32px;}
  .side-stack{position:static;margin-top:24px;}
  .related-grid{grid-template-columns:1fr 1fr;}
  .cta-inner{grid-template-columns:1fr;gap:24px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .prose{padding:30px 24px 24px;}
}
@media (min-width:992px) and (max-width:1023px){
  .grid-x>.cell.large-8{width:66.6667%;}
  .grid-x>.cell.large-4{width:33.3333%;}
}
@media (max-width:767px){
  :root{--sp-section:56px;--header-h:56px;}
  .container{padding-left:16px;padding-right:16px;}
  .brand-text{font-size:15px;}
  .check-row{grid-template-columns:44px 1fr;row-gap:10px;padding:16px 16px;}
  .check-row .badge{grid-column:2;justify-self:start;}
  .faq-a{padding-left:4px;}
  .faq-item summary{font-size:16px;gap:12px;padding:18px 2px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{font-size:12.5px;}
  .hero-trust{gap:8px 16px;}
}
@media (max-width:575px){
  .hero h1{font-size:30px;}
  .hero-actions .btn{width:100%;}
  .related-grid{grid-template-columns:1fr;}
  .hero-chip{padding:8px 12px;}
  .hero-chip .n{font-size:22px;}
  .section-head h2{font-size:24px;}
  .prose{padding:24px 18px 18px;}
  .prose h2{padding-left:14px;margin-top:32px;}
  .side-card{padding:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category3 */
/* ============ 1. 设计变量 ============ */
:root{
  --ink:#17211E;
  --ink-soft:#6B7A74;
  --deep:#0F5F4C;
  --deep-dark:#0B4939;
  --lime:#C8F751;
  --lime-dark:#3F5B1A;
  --amber:#FF8A3C;
  --amber-dark:#B8531A;
  --night:#12241F;
  --paper:#F6F5EF;
  --line:#E2E0D6;
  --white:#FFFFFF;
  --card-radius:16px;
  --btn-radius:12px;
  --shadow-1:0 1px 2px rgba(18,33,29,.06);
  --shadow-2:0 12px 32px -16px rgba(18,33,29,.28);
  --wrap:1200px;
  --num-font:"DIN Alternate","Barlow Semi Condensed",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

/* ============ 2. reset / base ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;margin:0;list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:var(--deep);text-decoration:none;transition:color .2s ease;}
a:visited{color:var(--deep);}
a:hover{color:var(--deep-dark);}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
::selection{background:rgba(200,247,81,.5);color:var(--night);}

h1{font-size:clamp(32px,4.4vw,56px);line-height:1.18;letter-spacing:-.2px;font-weight:800;color:var(--ink);}
h2{font-size:clamp(26px,3vw,38px);line-height:1.25;letter-spacing:-.2px;font-weight:700;color:var(--ink);}
h3{font-size:22px;line-height:1.4;font-weight:700;letter-spacing:-.1px;color:var(--ink);}
h4{font-size:18px;line-height:1.5;font-weight:700;color:var(--ink);}
p{font-size:16px;line-height:1.85;color:var(--ink);}
.num{font-family:var(--num-font);font-variant-numeric:tabular-nums;letter-spacing:.02em;}

/* ============ 3. 容器 ============ */
.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container{max-width:1280px;}}

/* ============ 4. 按钮 / 徽章 / 标签 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--btn-radius);
  font-size:16px;font-weight:600;line-height:1;border:2px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn .arrow{transition:transform .2s ease;}
.btn:hover .arrow{transform:translateX(4px);}
.btn-primary{background:var(--deep);border-color:var(--deep);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover,.btn-primary:focus{background:var(--deep-dark);border-color:var(--deep-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-ghost{background:transparent;border-color:var(--deep);color:var(--deep);}
.btn-ghost:hover,.btn-ghost:focus{background:rgba(200,247,81,.14);border-color:var(--lime);color:var(--deep-dark);transform:translateY(-2px);}
.btn-lime{background:var(--lime);border-color:var(--lime);color:var(--night);}
.btn-lime:hover,.btn-lime:focus{background:#B6E63F;border-color:#B6E63F;color:var(--night);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-outline-light{background:transparent;border-color:rgba(233,242,238,.45);color:#E9F2EE;}
.btn-outline-light:hover,.btn-outline-light:focus{background:rgba(200,247,81,.14);border-color:var(--lime);color:#fff;transform:translateY(-2px);}
.btn-sm{min-height:40px;padding:0 16px;font-size:15px;}
.btn-block{width:100%;}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;background:rgba(15,95,76,.08);
  color:var(--deep);font-size:13px;font-weight:600;letter-spacing:.02em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 3px rgba(200,247,81,.3);}

.chip{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:13px;font-weight:600;white-space:nowrap;line-height:1.6;}
.chip--live{background:rgba(15,95,76,.1);color:var(--deep);}
.chip--beta{background:rgba(200,247,81,.4);color:var(--lime-dark);}
.chip--amber{background:rgba(255,138,60,.14);color:var(--amber-dark);}

.tag-corner{
  display:inline-block;padding:4px 12px;background:var(--night);color:var(--lime);
  font-size:12px;font-weight:600;letter-spacing:.06em;border-radius:4px;
}

/* ============ 5. 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,245,239,.96);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:0 1px 0 rgba(18,33,29,.04);}
.header-inner{
  display:grid;grid-template-columns:7fr 1px 5fr;align-items:center;
  gap:0 24px;height:64px;
}
.header-left{display:flex;align-items:center;gap:28px;min-width:0;}
.header-right{display:flex;align-items:center;justify-content:flex-end;gap:12px;min-width:0;}
.header-divider{width:1px;height:28px;background:var(--line);}

.brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
.brand-mark{position:relative;width:26px;height:26px;background:var(--deep);border-radius:7px 7px 7px 2px;flex:none;}
.brand-mark::after{
  content:"";position:absolute;left:5px;top:12px;width:16px;height:4px;
  background:var(--lime);border-radius:2px;transform:rotate(-18deg);transform-origin:left center;
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.2px;color:var(--ink);white-space:nowrap;}
.brand:hover .brand-text{color:var(--deep);}

.nav-links{display:flex;align-items:center;gap:2px;min-width:0;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:64px;
  padding:0 12px;font-size:15px;font-weight:500;color:var(--ink);border-radius:8px;
  transition:color .2s ease,background-color .2s ease;
}
.nav-links a:hover{color:var(--deep);background:rgba(15,95,76,.05);}
.nav-links a.active{color:var(--deep);font-weight:700;}
.nav-links a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:14px;height:3px;
  background:var(--lime);border-radius:2px;
}

.search-btn{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  border:1px solid var(--line);border-radius:999px;background:#fff;
  color:var(--ink-soft);font-size:14px;transition:.2s ease;
}
.search-btn:hover{border-color:var(--deep);color:var(--deep);}
.search-btn svg{width:16px;height:16px;flex:none;}

.nav-toggle{
  display:none;width:44px;height:44px;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  border:1px solid var(--line);border-radius:10px;background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* 搜索层 */
.search-layer{
  display:none;position:absolute;left:0;right:0;top:100%;
  background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-2);
  padding:22px 0 26px;
}
.search-layer.is-open{display:block;}
.search-form{display:flex;gap:12px;max-width:720px;}
.search-form input{
  flex:1;height:48px;border:1px solid var(--line);border-radius:12px;
  padding:0 16px;font-size:15px;background:var(--paper);color:var(--ink);
}
.search-form input:focus{outline:none;border-color:var(--deep);box-shadow:0 0 0 3px rgba(200,247,81,.35);}
.hot-words{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:16px;}
.hot-words .label{font-size:13px;color:var(--ink-soft);margin-right:2px;}
.hot-word{
  padding:6px 14px;border-radius:999px;background:var(--paper);border:1px solid var(--line);
  font-size:13px;color:var(--ink-soft);transition:.2s ease;
}
.hot-word:hover{border-color:var(--lime);color:var(--deep);background:rgba(200,247,81,.14);}

/* 移动面板 */
.panel-mask{
  position:fixed;inset:0;background:rgba(18,33,29,.45);z-index:70;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.panel-mask.is-open{opacity:1;visibility:visible;}
.mobile-panel{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);z-index:80;
  background:#fff;padding:20px;overflow-y:auto;
  box-shadow:-16px 0 40px -24px rgba(18,33,29,.4);
  transform:translateX(100%);visibility:hidden;
  transition:transform .3s ease,visibility .3s ease;
}
.mobile-panel.is-open{transform:translateX(0);visibility:visible;}
.mobile-panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.panel-close{
  width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;font-size:20px;color:var(--ink);
}
.panel-close:hover{border-color:var(--deep);color:var(--deep);}
.mobile-nav{display:grid;gap:4px;margin-bottom:20px;}
.mobile-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:10px;font-size:16px;color:var(--ink);
  border:1px solid transparent;
}
.mobile-nav a:hover{background:var(--paper);color:var(--deep);}
.mobile-nav a.active{background:rgba(15,95,76,.07);color:var(--deep);font-weight:700;border-color:rgba(15,95,76,.16);}
.mobile-panel .search-form{flex-direction:column;max-width:none;}
.mobile-panel .btn{width:100%;margin-top:14px;}

/* ============ 6. Hero ============ */
.page-hero{
  padding:40px 0 80px;
  background:linear-gradient(180deg,rgba(15,95,76,.045),rgba(246,245,239,0) 62%),var(--paper);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.hero-copy{min-width:0;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-soft);margin-bottom:20px;}
.breadcrumb a{color:var(--ink-soft);}
.breadcrumb a:hover{color:var(--deep);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--ink);font-weight:600;}
.hero-copy h1{margin-top:18px;max-width:16em;}
.hero-sub{font-size:17px;line-height:1.8;color:var(--ink-soft);margin-top:20px;max-width:34em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.trust-row{display:flex;flex-wrap:wrap;gap:10px 20px;margin-top:28px;}
.trust-row li{position:relative;padding-left:14px;font-size:14px;color:var(--ink-soft);}
.trust-row li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--deep);}

.hero-visual{position:relative;border-left:1px solid var(--line);padding-left:48px;min-width:0;}
.hero-figure{margin:0;border-radius:var(--card-radius);overflow:hidden;aspect-ratio:16/11;background:#E9E7DE;box-shadow:var(--shadow-1);}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-badge-card{
  position:absolute;left:24px;bottom:-30px;background:#fff;border:1px solid var(--line);
  border-radius:12px;padding:12px 18px;box-shadow:var(--shadow-2);
  display:grid;gap:2px;min-width:158px;
}
.hero-badge-card .badge-label{font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--ink-soft);}
.hero-badge-card .badge-value{font-family:var(--num-font);font-variant-numeric:tabular-nums;font-size:24px;font-weight:700;color:var(--deep);line-height:1.2;}
.hero-badge-card .badge-note{font-size:12.5px;color:var(--ink-soft);}

/* ============ 7. 板块通用 ============ */
.section{padding:72px 0;}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:780px;margin-bottom:32px;}
.section-head h2{margin-bottom:14px;}
.section-head p{font-size:16px;color:var(--ink-soft);line-height:1.85;}
.section-head .eyebrow{margin-bottom:16px;}

/* ============ 8. 版本概览卡 ============ */
.overview-grid{margin-top:0;}
.stat-card{
  position:relative;height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--card-radius);
  padding:24px 22px 20px;box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.stat-card::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;background:var(--lime);border-radius:0 3px 3px 0;}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(15,95,76,.2);}
.stat-label{font-size:13px;font-weight:600;letter-spacing:.05em;color:var(--ink-soft);}
.stat-value{
  font-family:var(--num-font);font-variant-numeric:tabular-nums;
  font-size:clamp(28px,3.4vw,40px);font-weight:700;color:var(--deep);line-height:1.12;
  margin:10px 0 6px;word-break:break-word;
}
.stat-note{font-size:14px;color:var(--ink-soft);line-height:1.7;}
.stat-scale{display:flex;gap:6px;margin-top:18px;align-items:flex-end;}
.stat-scale i{display:block;width:1px;height:10px;background:var(--line);}
.stat-scale i:nth-child(4n){height:16px;background:var(--lime);}

/* ============ 9. 版本记录列表 ============ */
.record-list{
  border:1px solid var(--line);border-radius:var(--card-radius);background:#fff;
  overflow:hidden;box-shadow:var(--shadow-1);
}
.record-head{
  display:grid;grid-template-columns:150px 140px 1fr 110px;gap:16px;
  padding:14px 24px;background:var(--paper);border-bottom:1px solid var(--line);
  font-size:13px;font-weight:600;letter-spacing:.05em;color:var(--ink-soft);
}
.record-row{
  display:grid;grid-template-columns:150px 140px 1fr 110px;gap:16px;align-items:center;
  padding:20px 24px;border-bottom:1px solid var(--line);
  transition:background-color .2s ease;
}
.record-row:last-child{border-bottom:0;}
.record-row:hover{background:rgba(200,247,81,.1);}
.r-version{font-family:var(--num-font);font-variant-numeric:tabular-nums;font-size:17px;font-weight:700;color:var(--deep);letter-spacing:.02em;}
.r-date{font-family:var(--num-font);font-variant-numeric:tabular-nums;font-size:14.5px;color:var(--ink-soft);}
.r-desc{font-size:15px;line-height:1.75;color:var(--ink);}
.r-status{justify-self:start;}
.record-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:18px 24px;background:var(--paper);border-top:1px solid var(--line);
  font-size:14px;color:var(--ink-soft);
}
.record-foot a{font-weight:600;}

/* ============ 10. 升级流程 ============ */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--card-radius);
  padding:28px 22px 24px;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.step-card::before{content:"";position:absolute;left:22px;top:0;width:34px;height:8px;background:var(--lime);border-radius:0 0 4px 4px;}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(15,95,76,.24);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;
  border-radius:8px;background:var(--deep);color:#fff;
  font-family:var(--num-font);font-variant-numeric:tabular-nums;font-size:15px;font-weight:700;
  margin-bottom:16px;
}
.step-card h3{font-size:18px;margin-bottom:10px;}
.step-card p{font-size:14.5px;line-height:1.8;color:var(--ink-soft);}

/* ============ 11. 提示与清单 ============ */
.note-layout{display:grid;grid-template-columns:8fr 4fr;gap:32px;align-items:start;}
.note-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--card-radius);
  padding:24px 24px 22px;box-shadow:var(--shadow-1);margin-bottom:16px;
}
.note-item:last-child{margin-bottom:0;}
.note-item .tag-corner{margin-bottom:14px;}
.note-item h3{font-size:18px;margin-bottom:8px;}
.note-item p{font-size:15px;line-height:1.85;color:var(--ink-soft);}
.note-aside{
  position:sticky;top:88px;background:#fff;border:1px solid var(--line);
  border-radius:var(--card-radius);padding:26px 22px;box-shadow:var(--shadow-1);
}
.note-aside h3{font-size:18px;margin-bottom:16px;}
.check-list{margin-bottom:22px;}
.check-list li{position:relative;padding-left:22px;font-size:15px;line-height:1.75;color:var(--ink-soft);margin-bottom:12px;}
.check-list li::before{
  content:"";position:absolute;left:0;top:10px;width:8px;height:8px;
  background:var(--lime);border-radius:2px;transform:rotate(45deg);
}
.check-list li:last-child{margin-bottom:0;}

/* ============ 12. FAQ ============ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  display:flex;align-items:flex-start;gap:16px;width:100%;
  padding:22px 0;text-align:left;font-size:18px;font-weight:700;line-height:1.5;color:var(--ink);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--deep);}
.faq-index{
  flex:none;display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border:1px solid var(--line);border-radius:8px;background:#fff;
  font-family:var(--num-font);font-variant-numeric:tabular-nums;font-size:14px;font-weight:700;color:var(--deep);
}
.faq-text{flex:1;min-width:0;}
.faq-icon{position:relative;flex:none;width:20px;height:20px;margin-top:7px;transition:transform .25s ease;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--deep);border-radius:2px;}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-q[aria-expanded="true"] .faq-icon{transform:rotate(45deg);}
.faq-a{padding:0 0 24px 52px;font-size:15px;line-height:1.9;color:var(--ink-soft);}
.faq-a[hidden]{display:none;}

/* ============ 13. CTA 通栏 ============ */
.cta-band{position:relative;overflow:hidden;background:var(--night);color:#DFE9E3;padding:64px 0;}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-70px;width:300px;height:300px;
  border:1px solid rgba(200,247,81,.18);border-radius:50%;pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:center;}
.cta-band h2{color:#fff;font-size:clamp(24px,2.6vw,32px);}
.cta-band p{color:#B9C9C1;font-size:15.5px;line-height:1.85;margin-top:12px;max-width:40em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}

/* ============ 14. 相关分类 ============ */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.related-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--card-radius);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  color:var(--ink);
}
.related-card:hover,.related-card:focus{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(15,95,76,.24);color:var(--ink);}
.related-thumb{aspect-ratio:4/3;overflow:hidden;background:#E9E7DE;}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.related-card:hover .related-thumb img{transform:scale(1.02);}
.related-body{padding:20px 22px 24px;flex:1;display:flex;flex-direction:column;}
.related-body h3{font-size:18px;margin-bottom:8px;}
.related-body p{font-size:14.5px;line-height:1.75;color:var(--ink-soft);}
.related-more{
  margin-top:14px;font-size:14px;font-weight:600;color:var(--deep);
  display:inline-flex;align-items:center;gap:6px;
}
.related-more .arrow{transition:transform .2s ease;}
.related-card:hover .related-more .arrow{transform:translateX(4px);}

/* ============ 15. 页脚 ============ */
.site-footer{background:var(--deep);color:#D9E2DD;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-mark{background:#fff;}
.footer-brand .brand-mark::after{background:var(--deep);}
.footer-brand p{color:#B9CBC3;font-size:14.5px;line-height:1.85;margin-top:16px;max-width:32em;}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;letter-spacing:.02em;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li:last-child{margin-bottom:0;}
.footer-col a{color:#C6D6CF;font-size:14.5px;}
.footer-col a:visited{color:#C6D6CF;}
.footer-col a:hover{color:var(--lime);}
.footer-contact p{font-size:14.5px;line-height:1.85;color:#B9CBC3;margin-bottom:8px;}
.footer-contact p:last-child{margin-bottom:0;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 24px;
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.16);
  font-size:13.5px;color:#A9BDB5;
}

/* 跳过链接 */
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:120;
  background:var(--deep);color:#fff;padding:12px 20px;border-radius:0 0 12px 0;
}
.skip-link:focus{left:0;color:#fff;}

/* ============ 16. 响应式 ============ */
@media (max-width:1199px){
  .hero-grid{gap:36px;}
  .hero-visual{padding-left:36px;}
  .nav-links a{padding:0 10px;font-size:14.5px;}
  .header-left{gap:20px;}
}

@media (max-width:991px){
  .header-inner{grid-template-columns:1fr auto;height:60px;gap:0 16px;}
  .header-divider{display:none;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-right .btn{display:none;}
  .search-btn span{display:none;}
  .search-btn{width:40px;padding:0;justify-content:center;}

  .page-hero{padding:28px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual{border-left:0;padding-left:0;order:-1;}
  .hero-badge-card{left:auto;right:16px;bottom:-24px;min-width:140px;}
  .hero-copy h1{max-width:none;}

  .section{padding:64px 0;}
  .note-layout{grid-template-columns:1fr;gap:24px;}
  .note-aside{position:static;}
  .step-grid{grid-template-columns:repeat(2,1fr);}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .cta-inner{grid-template-columns:1fr;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
}

@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:26px;}

  .record-head{display:none;}
  .record-row{grid-template-columns:1fr auto;gap:8px 14px;padding:20px;align-items:start;}
  .r-version{order:1;}
  .r-status{order:2;justify-self:end;}
  .r-date{order:3;grid-column:1 / -1;}
  .r-desc{order:4;grid-column:1 / -1;}
  .record-foot{padding:16px 20px;}

  .step-grid{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .faq-q{font-size:16.5px;gap:12px;padding:20px 0;}
  .faq-a{padding:0 0 20px 48px;}
  .hero-badge-card{position:relative;left:auto;right:auto;bottom:auto;margin:-26px 16px 0;display:inline-grid;}
  .cta-actions .btn{flex:1 1 190px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

@media (max-width:575px){
  .container{padding:0 16px;}
  body{font-size:15.5px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .faq-index{width:32px;height:32px;font-size:13px;}
  .faq-q{font-size:16px;}
  .faq-a{padding-left:44px;}
  .brand-text{font-size:15.5px;}
}