/* roulang page: index */
:root{
  --ink:#0B0D10;
  --paper:#F7F5F1;
  --brand:#FF4A1C;
  --brand-2:#D6FF4B;
  --steel:#3A4048;
  --line:#E4E0D8;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,textarea{font:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 20px;
}
@media(min-width:768px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 40px}}

.num{font-variant-numeric:tabular-nums;font-weight:900;letter-spacing:-.02em}

/* ===== Dock 导航 ===== */
.dock-wrap{
  position:fixed;
  top:16px;left:0;right:0;
  z-index:80;
  display:flex;
  justify-content:center;
  padding:0 12px;
  pointer-events:none;
}
@media(max-width:767px){.dock-wrap{top:10px}}
.dock{
  pointer-events:auto;
  width:100%;
  max-width:1120px;
  display:flex;
  align-items:center;
  gap:14px;
  padding:8px 10px 8px 16px;
  background:rgba(247,245,241,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:0 10px 30px -18px rgba(11,13,16,.35);
  transition:all 180ms cubic-bezier(.22,1,.36,1);
}
.dock.is-scrolled{
  padding-top:4px;padding-bottom:4px;
  background:rgba(247,245,241,.94);
  box-shadow:0 12px 34px -18px rgba(11,13,16,.42);
}
.dock-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.dock-mark{
  width:32px;height:32px;border-radius:9px;
  background:var(--ink);
  display:flex;align-items:center;justify-content:center;
  position:relative;overflow:hidden;
}
.dock-mark::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(90deg,rgba(255,255,255,.16) 0 2px,transparent 2px 6px);
}
.dock-mark span{
  position:relative;color:var(--brand-2);font-weight:900;font-size:15px;letter-spacing:-.04em;
}
.dock-name{font-weight:900;font-size:16px;letter-spacing:-.02em;white-space:nowrap}
.dock-name em{font-style:normal;color:var(--brand)}
.dock-nav{
  display:none;
  flex:1 1 auto;
  align-items:center;
  justify-content:center;
  gap:2px;
}
@media(min-width:1024px){.dock-nav{display:flex}}
.dock-link{
  position:relative;
  padding:9px 12px;
  border-radius:999px;
  font-size:14px;
  font-weight:500;
  color:var(--steel);
  white-space:nowrap;
  transition:color 180ms cubic-bezier(.22,1,.36,1),background 180ms;
}
.dock-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform 180ms cubic-bezier(.22,1,.36,1);
}
.dock-link:hover{color:var(--ink);background:rgba(11,13,16,.04)}
.dock-link.is-active{color:var(--ink);font-weight:900}
.dock-link.is-active::after{transform:scaleX(1)}
.dock-right{display:flex;align-items:center;gap:8px;flex:0 0 auto;margin-left:auto}
.dock-cta{
  display:none;
  align-items:center;gap:6px;
  height:40px;padding:0 18px;
  border-radius:999px;
  background:var(--ink);color:#fff;
  font-size:14px;font-weight:700;
  transition:all 180ms cubic-bezier(.22,1,.36,1);
}
.dock-cta:hover{background:var(--brand);transform:translateY(-2px);box-shadow:0 12px 24px -12px rgba(255,74,28,.7)}
.dock-cta:active{transform:translateY(0) scale(.98)}
@media(min-width:768px){.dock-cta{display:inline-flex}}
.dock-burger{
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:999px;border:1px solid var(--line);
  background:transparent;color:var(--ink);cursor:pointer;
  transition:all 180ms cubic-bezier(.22,1,.36,1);
}
.dock-burger:hover{border-color:var(--brand);color:var(--brand)}
@media(min-width:1024px){.dock-burger{display:none}}
.dock-mobile{
  display:none;
  pointer-events:auto;
  width:100%;max-width:1120px;
  margin-top:10px;
  background:rgba(247,245,241,.97);
  backdrop-filter:blur(12px);
  border:1px solid var(--line);
  border-radius:22px;
  padding:8px;
  box-shadow:0 20px 40px -20px rgba(11,13,16,.4);
}
.dock-mobile.open{display:block}
.dock-mobile a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;
  border-radius:14px;
  font-size:15px;font-weight:600;color:var(--steel);
  border-bottom:1px solid var(--line);
}
.dock-mobile a:last-child{border-bottom:0}
.dock-mobile a.is-active{color:var(--ink);background:rgba(255,74,28,.07)}
.dock-mobile a:hover{color:var(--brand)}

/* ===== 通用按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;
  border-radius:12px;
  font-size:15px;font-weight:700;
  cursor:pointer;border:1px solid transparent;
  transition:all 180ms cubic-bezier(.22,1,.36,1);
}
.btn:active{transform:translateY(0) scale(.98)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 14px 28px -14px rgba(255,74,28,.75)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{filter:brightness(1.15);transform:translateY(-2px);box-shadow:0 14px 28px -14px rgba(11,13,16,.7)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:rgba(255,74,28,.08);border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-pill{border-radius:999px}
.textlink{
  display:inline-flex;align-items:center;gap:6px;
  font-weight:700;color:var(--brand);
  position:relative;
}
.textlink span{transition:transform 180ms cubic-bezier(.22,1,.36,1)}
.textlink:hover span{transform:translateX(4px)}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 12px;
  border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:0;
}
.badge-fill{background:var(--brand-2);color:var(--ink)}
.badge-line{border:1px solid var(--line);color:var(--steel);background:rgba(255,255,255,.6)}
.badge-brand{background:rgba(255,74,28,.1);color:var(--brand)}

/* ===== Hero ===== */
.hero{
  position:relative;
  padding:132px 0 72px;
  overflow:hidden;
}
@media(min-width:768px){.hero{padding:164px 0 96px}}
@media(min-width:1280px){.hero{padding:180px 0 112px}}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(11,13,16,.86) 0%,rgba(11,13,16,.78) 55%,rgba(11,13,16,.9) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(180deg,rgba(255,255,255,.055) 0 1px,transparent 1px 42px);
}
.hero-inner{position:relative;z-index:2}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  border:1px solid rgba(255,255,255,.22);
  color:rgba(255,255,255,.88);
  font-size:13px;font-weight:600;letter-spacing:.02em;
  background:rgba(255,255,255,.06);
}
.hero-eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--brand-2);display:inline-block}
.hero h1{
  margin:22px 0 0;
  color:#fff;
  font-size:clamp(2rem,5vw,3.5rem);
  line-height:1.1;
  font-weight:900;
  letter-spacing:-.02em;
}
.hero h1 em{font-style:normal;color:var(--brand-2)}
.hero-sub{
  margin-top:20px;
  max-width:620px;
  color:rgba(255,255,255,.78);
  font-size:clamp(1rem,1.5vw,1.0625rem);
  line-height:1.85;
}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:12px}
.hero-metrics{
  margin-top:48px;
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:1px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.12);
  border-radius:16px;
  overflow:hidden;
}
@media(min-width:768px){.hero-metrics{grid-template-columns:repeat(4,minmax(0,1fr))}}
.hero-metric{background:rgba(11,13,16,.5);padding:20px 22px}
.hero-metric b{display:block;color:#fff;font-size:clamp(1.5rem,3vw,2rem)}
.hero-metric b i{font-style:normal;color:var(--brand);font-size:.6em;margin-left:2px}
.hero-metric span{display:block;margin-top:6px;color:rgba(255,255,255,.6);font-size:12.5px;letter-spacing:.04em}
.hero-visual{
  position:relative;
  border-radius:18px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.14);
  min-height:300px;
}
.hero-visual img{width:100%;height:100%;min-height:300px;object-fit:cover;position:absolute;inset:0}
.hero-visual .cap{
  position:absolute;left:0;right:0;bottom:0;
  padding:18px 20px;
  background:linear-gradient(180deg,transparent,rgba(11,13,16,.86));
  color:#fff;
}
.hero-visual .cap b{display:block;font-size:15px;font-weight:800}
.hero-visual .cap span{display:block;margin-top:4px;font-size:12.5px;color:rgba(255,255,255,.7)}

/* ===== 区块通用 ===== */
.section{padding:64px 0}
@media(min-width:768px){.section{padding:96px 0}}
.section-tight{padding:48px 0}
@media(min-width:768px){.section-tight{padding:64px 0}}
.sec-head{max-width:760px}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--brand);font-size:13px;font-weight:800;letter-spacing:.08em;
}
.sec-kicker::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px}
h2.sec-title{
  margin:14px 0 0;
  font-size:clamp(1.5rem,3vw,2.25rem);
  line-height:1.25;
  font-weight:800;
  letter-spacing:-.015em;
}
.sec-lead{margin-top:14px;color:var(--steel);font-size:16px;line-height:1.85;max-width:660px}

/* ===== 能力标签带 ===== */
.tagband{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:18px 0 0;
  border-top:1px solid var(--line);
}
.tagband .tag{
  display:inline-flex;align-items:center;gap:8px;
  min-height:40px;padding:0 18px;
  border:1px solid var(--line);border-radius:999px;
  background:rgba(255,255,255,.7);
  font-size:14px;font-weight:600;color:var(--steel);
  transition:all 180ms cubic-bezier(.22,1,.36,1);
}
.tagband .tag:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:0 10px 22px -14px rgba(255,74,28,.6)}
.tagband .tag i{width:6px;height:6px;border-radius:50%;background:var(--brand);display:inline-block}

/* ===== 三步 ===== */
.steps{display:grid;gap:20px;margin-top:40px;position:relative}
@media(min-width:768px){.steps{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}}
.step{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:18px;
  padding:28px 24px 26px;
  box-shadow:0 1px 2px rgba(11,13,16,.06);
  transition:all 180ms cubic-bezier(.22,1,.36,1);
}
.step:hover{border-color:rgba(255,74,28,.3);transform:translateY(-4px);box-shadow:0 16px 36px -14px rgba(11,13,16,.22)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:52px;height:52px;padding:0 12px;
  border:2px solid var(--ink);border-radius:14px;
  font-size:20px;font-weight:900;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
}
.step h3{margin:20px 0 0;font-size:1.125rem;font-weight:800}
.step p{margin:10px 0 0;color:var(--steel);font-size:15px;line-height:1.8}
.step ul{margin:16px 0 0;padding:0;list-style:none;display:grid;gap:8px}
.step ul li{position:relative;padding-left:16px;color:var(--steel);font-size:14px}
.step ul li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--brand-2);outline:1px solid rgba(11,13,16,.14)}

/* ===== 案例栅格 ===== */
.case-grid{display:grid;gap:20px;margin-top:40px}
@media(min-width:1024px){.case-grid{grid-template-columns:8fr 4fr;gap:24px}}
.case-main{
  position:relative;border-radius:18px;overflow:hidden;
  border:1px solid var(--line);background:var(--ink);
  min-height:340px;display:flex;align-items:flex-end;
}
.case-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.62;transition:transform 400ms cubic-bezier(.22,1,.36,1)}
.case-main:hover img{transform:scale(1.04)}
.case-main .body{position:relative;padding:28px 26px;color:#fff}
.case-main .body h3{margin:14px 0 0;font-size:clamp(1.25rem,2vw,1.6rem);font-weight:800;line-height:1.3}
.case-main .body p{margin:12px 0 0;color:rgba(255,255,255,.76);font-size:15px;line-height:1.8;max-width:560px}
.case-side{display:grid;gap:20px}
@media(min-width:768px) and (max-width:1023px){.case-side{grid-template-columns:repeat(2,minmax(0,1fr))}}
.case-mini{
  border:1px solid var(--line);border-radius:18px;background:#fff;overflow:hidden;
  display:flex;flex-direction:column;
  transition:all 180ms cubic-bezier(.22,1,.36,1);
}
.case-mini:hover{border-color:rgba(255,74,28,.3);transform:translateY(-4px);box-shadow:0 16px 36px -14px rgba(11,13,16,.22)}
.case-mini .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--ink)}
.case-mini .thumb img{width:100%;height:100%;object-fit:cover}
.case-mini .body{padding:18px 20px 20px}
.case-mini h3{margin:10px 0 0;font-size:1rem;font-weight:800;line-height:1.45}
.case-mini p{margin:8px 0 0;color:var(--steel);font-size:13.5px;line-height:1.7}
.case-mini .meta{margin-top:12px;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:rgba(58,64,72,.75)}
.case-mini .meta b{color:var(--brand);font-weight:900;font-size:15px}

/* ===== 数据条 ===== */
.statbar{
  margin-top:28px;
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden;
}
@media(min-width:768px){.statbar{grid-template-columns:repeat(4,minmax(0,1fr))}}
.statbar div{background:#fff;padding:22px 20px}
.statbar b{display:block;font-size:clamp(1.375rem,2.6vw,1.875rem);font-weight:900;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.statbar b i{font-style:normal;color:var(--brand);font-size:.6em;margin-left:2px}
.statbar span{display:block;margin-top:6px;font-size:13px;color:var(--steel)}

/* ===== 内容卡片 ===== */
.cardgrid{display:grid;gap:20px;margin-top:36px}
@media(min-width:640px){.cardgrid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.cardgrid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}}
.card{
  position:relative;
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;
  box-shadow:0 1px 2px rgba(11,13,16,.06);
  transition:all 180ms cubic-bezier(.22,1,.36,1);
}
.card:hover{border-color:rgba(255,74,28,.3);transform:translateY(-4px);box-shadow:0 16px 36px -14px rgba(11,13,16,.22)}
.card .thumb{aspect-ratio:16/9;background:var(--ink);overflow:hidden;position:relative}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 400ms cubic-bezier(.22,1,.36,1)}
.card:hover .thumb img{transform:scale(1.04)}
.card .thumb .ph{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  color:var(--brand-2);font-size:34px;font-weight:900;letter-spacing:-.04em;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.05) 0 2px,transparent 2px 8px);
}
.card .body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.card h3{margin:12px 0 0;font-size:1.0625rem;font-weight:800;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card p{margin:10px 0 0;color:var(--steel);font-size:14px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card .foot{
  margin-top:auto;padding-top:16px;
  display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line);
  font-size:12.5px;color:rgba(58,64,72,.75);
}
.card .foot .date{font-variant-numeric:tabular-nums}
.card .stretch{position:absolute;inset:0;z-index:3}
.card a.card-title:hover{color:var(--brand)}

.emptybox{
  margin-top:36px;
  min-height:240px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  border:1px dashed var(--line);border-radius:18px;background:rgba(255,255,255,.6);
  color:var(--steel);text-align:center;padding:32px 20px;
}
.emptybox .ico{
  width:56px;height:56px;border-radius:16px;background:rgba(11,13,16,.05);
  display:flex;align-items:center;justify-content:center;color:var(--steel);
}

/* ===== FAQ ===== */
.faq{display:grid;gap:32px;margin-top:40px}
@media(min-width:1024px){.faq{grid-template-columns:5fr 7fr;gap:56px;align-items:start}}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:20px 0;
  font-size:16px;font-weight:700;color:var(--ink);
  transition:color 180ms cubic-bezier(.22,1,.36,1);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary .plus{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  border:1px solid var(--line);position:relative;margin-top:2px;
  transition:all 180ms cubic-bezier(.22,1,.36,1);
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--steel);transform:translate(-50%,-50%);
  transition:all 180ms cubic-bezier(.22,1,.36,1);
}
.faq-item summary .plus::before{width:12px;height:1.5px}
.faq-item summary .plus::after{width:1.5px;height:12px}
.faq-item[open] summary .plus{border-color:var(--brand);background:rgba(255,74,28,.08)}
.faq-item[open] summary .plus::before{background:var(--brand)}
.faq-item[open] summary .plus::after{opacity:0}
.faq-item .ans{padding:0 0 22px;color:var(--steel);font-size:15px;line-height:1.85;max-width:640px}
.faq-side{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 24px;
  box-shadow:0 1px 2px rgba(11,13,16,.06);
}
.faq-side h3{margin:0;font-size:1.125rem;font-weight:800}
.faq-side p{margin:12px 0 0;color:var(--steel);font-size:14.5px;line-height:1.8}
.faq-side dl{margin:20px 0 0;display:grid;gap:14px}
.faq-side dt{font-size:12.5px;color:rgba(58,64,72,.7);letter-spacing:.04em}
.faq-side dd{margin:2px 0 0;font-size:15px;font-weight:700;color:var(--ink)}

/* ===== CTA 深色块 ===== */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink);color:#fff;
  border-radius:24px;
  padding:48px 28px;
}
@media(min-width:768px){.cta-band{padding:64px 56px}}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 34px);
  pointer-events:none;
}
.cta-band .inner{position:relative;z-index:2}
.cta-band h2{margin:0;font-size:clamp(1.5rem,3vw,2.25rem);font-weight:800;line-height:1.25;letter-spacing:-.015em}
.cta-band p{margin:16px 0 0;color:rgba(255,255,255,.72);font-size:16px;line-height:1.85;max-width:620px}
.cta-band .acts{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.cta-band .note{margin-top:18px;color:rgba(255,255,255,.5);font-size:13px}

/* ===== 页脚 ===== */
.footer{background:var(--ink);color:rgba(255,255,255,.72);margin-top:64px;position:relative;overflow:hidden}
.footer::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.035) 0 1px,transparent 1px 40px);
  pointer-events:none;
}
.footer-inner{position:relative;z-index:2;padding:64px 0 0}
.footer-grid{display:grid;gap:36px}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px}}
.footer h4{margin:0 0 18px;color:#fff;font-size:14px;font-weight:800;letter-spacing:.06em}
.footer .f-logo{display:flex;align-items:center;gap:10px}
.footer .f-logo .dock-mark{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16)}
.footer .f-name{color:#fff;font-weight:900;font-size:17px;letter-spacing:-.02em}
.footer p.desc{margin:16px 0 0;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px}
.footer ul{margin:0;padding:0;list-style:none;display:grid;gap:12px}
.footer ul a{font-size:14px;color:rgba(255,255,255,.68);transition:color 180ms cubic-bezier(.22,1,.36,1)}
.footer ul a:hover{color:var(--brand-2)}
.footer .contact li{color:rgba(255,255,255,.68);font-size:14px;display:flex;gap:10px;line-height:1.7}
.footer .contact b{color:#fff;font-weight:700}
.footer-bottom{
  margin-top:56px;padding:22px 0;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom .num{color:rgba(255,255,255,.5);font-weight:500}

@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: article */
:root{
  --ink:#0B0D10;
  --paper:#F7F5F1;
  --brand:#FF4A1C;
  --brand-2:#D6FF4B;
  --steel:#3A4048;
  --line:#E4E0D8;
  --ok:#16A34A;
  --warn:#E6A700;
  --r-card:18px;
  --r-btn:12px;
  --r-img:14px;
  --sh-rest:0 1px 2px rgba(11,13,16,.06);
  --sh-hover:0 16px 36px -14px rgba(11,13,16,.22);
  --ease:cubic-bezier(.22,1,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding-top:104px;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.75;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
time,.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 40px}
.section{padding:64px 0}
.section-lg{padding:96px 0}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em}
p{margin:0}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:800;letter-spacing:.14em;
  text-transform:uppercase;color:var(--brand);margin-bottom:14px;
}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-head h2{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:800;line-height:1.25}
.sec-head p{margin-top:14px;color:var(--steel);font-size:16px;line-height:1.8}
.muted{color:var(--steel);opacity:.85}

/* ---------- Dock 导航 ---------- */
.site-header{
  position:fixed;top:16px;left:0;right:0;z-index:60;
  display:flex;justify-content:center;padding:0 16px;pointer-events:none;
}
.dock{
  pointer-events:auto;width:100%;max-width:1120px;
  display:flex;align-items:center;gap:18px;
  min-height:60px;padding:8px 12px 8px 16px;
  border:1px solid var(--line);border-radius:999px;
  background:rgba(247,245,241,.86);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:var(--sh-rest);
  transition:min-height 180ms var(--ease),background 180ms var(--ease),box-shadow 180ms var(--ease);
}
.dock.is-scrolled{min-height:52px;background:rgba(247,245,241,.94);box-shadow:0 10px 30px -18px rgba(11,13,16,.32)}
.dock-brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.dock-mark{
  width:34px;height:34px;border-radius:12px;background:var(--ink);color:var(--paper);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:900;letter-spacing:.04em;flex:0 0 auto;
}
.dock-name{font-size:16px;font-weight:900;letter-spacing:-.02em;white-space:nowrap}
.dock-nav{display:flex;align-items:center;gap:2px;margin-left:auto;flex-wrap:nowrap}
.dock-link{
  position:relative;display:inline-flex;align-items:center;
  padding:9px 12px;border-radius:999px;font-size:14px;font-weight:500;
  color:var(--steel);white-space:nowrap;
  transition:color 180ms var(--ease),background 180ms var(--ease);
}
.dock-link:hover{color:var(--ink);background:rgba(11,13,16,.05)}
.dock-link.is-active{color:var(--ink);font-weight:900}
.dock-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--brand);
}
.dock-toggle{
  display:none;margin-left:auto;align-items:center;gap:6px;
  height:44px;padding:0 16px;border:1px solid var(--line);border-radius:999px;
  font-size:14px;font-weight:700;color:var(--ink);
}
.dock-toggle:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),
             background 180ms var(--ease),border-color 180ms var(--ease),filter 180ms var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-rest)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:var(--sh-hover)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{background:rgba(255,74,28,.08);border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-ink{background:var(--ink);color:#fff}
.btn-ink:hover{filter:brightness(1.12);transform:translateY(-2px);box-shadow:var(--sh-hover)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:700;color:var(--brand);
}
.btn-text span{transition:transform 180ms var(--ease)}
.btn-text:hover span{transform:translateX(4px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.02em;
}
.badge-lime{background:var(--brand-2);color:var(--ink)}
.badge-line{border:1px solid var(--line);color:var(--steel);background:#fff}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;overflow:hidden;
  background:
    linear-gradient(180deg,rgba(255,255,255,.85),rgba(247,245,241,.98)),
    repeating-linear-gradient(180deg,rgba(11,13,16,.05) 0 1px,transparent 1px 56px);
  border-bottom:1px solid var(--line);
  padding:56px 0 48px;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--steel);
  margin-bottom:22px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.breadcrumb a{color:var(--steel)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .now{color:var(--ink);opacity:.7;overflow:hidden;text-overflow:ellipsis}
.article-hero h1{
  font-size:clamp(1.9rem,4.2vw,3.1rem);font-weight:900;line-height:1.14;
  letter-spacing:-.02em;margin:18px 0 0;max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:24px;font-size:13px;color:var(--steel);
}
.article-meta .dot{width:4px;height:4px;border-radius:999px;background:var(--line)}

/* ---------- 阅读区布局 ---------- */
.read-grid{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;
  gap:56px;align-items:start;
}
.article-main{min-width:0}

/* ---------- 正文排版 ---------- */
.article-body{max-width:760px;font-size:17px;line-height:1.85;color:#1B1F24}
.article-body > p:first-of-type{font-size:19px;line-height:1.8;color:var(--ink)}
.article-body p{margin:0 0 1.4em}
.article-body h2{
  margin:48px 0 16px;padding-left:14px;border-left:4px solid var(--brand);
  font-size:clamp(1.35rem,2.5vw,1.7rem);font-weight:800;line-height:1.35;
}
.article-body h3{margin:32px 0 12px;font-size:1.2rem;font-weight:700;line-height:1.5}
.article-body h4{margin:24px 0 10px;font-size:1.05rem;font-weight:700}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.25em;line-height:1.8}
.article-body li{margin-bottom:.5em}
.article-body blockquote{
  margin:28px 0;padding:18px 22px;border-left:3px solid var(--brand);
  background:rgba(255,74,28,.04);border-radius:0 var(--r-btn) var(--r-btn) 0;color:var(--steel);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:28px auto}
.article-body figure{margin:28px 0}
.article-body figcaption{font-size:13px;color:var(--steel);opacity:.85;text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:28px 0;font-size:15px}
.article-body th{
  background:var(--ink);color:var(--paper);text-align:left;
  padding:12px 14px;font-weight:700;letter-spacing:.01em;
}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.article-body a{color:var(--brand);border-bottom:1px solid transparent;transition:border-color 180ms var(--ease)}
.article-body a:hover{border-bottom-color:var(--brand)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:40px 0}
.article-empty{
  max-width:760px;padding:56px 32px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);text-align:center;
}
.article-empty strong{display:block;font-size:20px;font-weight:800;margin-bottom:12px}
.article-empty p{color:var(--steel);margin-bottom:24px}

/* ---------- 内容尾部 ---------- */
.tail-block{
  max-width:760px;margin-top:56px;padding-top:32px;border-top:1px solid var(--line);
}
.tail-block h3{font-size:1.05rem;font-weight:800;margin-bottom:16px}
.pager{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  margin-top:32px;padding-top:28px;border-top:1px solid var(--line);
}
.pager-links{display:flex;flex-wrap:wrap;gap:10px 24px;font-size:14px;color:var(--steel)}
.pager-links a:hover{color:var(--brand)}

/* ---------- 侧栏 ---------- */
.side-col{position:sticky;top:112px;display:flex;flex-direction:column;gap:24px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px}
.side-card h3{font-size:15px;font-weight:800;margin-bottom:14px;letter-spacing:.01em}
.side-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.side-list li{padding:11px 0;border-bottom:1px solid var(--line);font-size:14px;line-height:1.6}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list li:first-child{padding-top:0}
.side-list a{color:var(--ink);font-weight:600;transition:color 180ms var(--ease)}
.side-list a:hover{color:var(--brand)}
.side-list .date{display:block;margin-top:4px;font-size:12px;color:var(--steel);opacity:.8}
.side-cta{
  background:var(--ink);color:var(--paper);border-radius:var(--r-card);padding:24px;
  background-image:repeating-linear-gradient(180deg,rgba(255,255,255,.09) 0 1px,transparent 1px 26px);
}
.side-cta h3{font-size:16px;font-weight:800;color:#fff}
.side-cta p{margin:10px 0 18px;font-size:13px;line-height:1.7;color:rgba(247,245,241,.75)}

/* ---------- 相关推荐 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.mini-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease);
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(255,74,28,.3)}
.mini-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--ink)}
.mini-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease)}
.mini-card:hover .thumb img{transform:scale(1.04)}
.mini-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.mini-card h3{font-size:16px;font-weight:700;line-height:1.5}
.mini-card p{font-size:14px;color:var(--steel);line-height:1.7}
.mini-card .foot{margin-top:auto;font-size:12px;color:var(--steel);display:flex;gap:10px;align-items:center}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:56px;align-items:start}
.faq-list{border-top:1px solid var(--line)}
.faq-list details{border-bottom:1px solid var(--line)}
.faq-list summary{
  list-style:none;cursor:pointer;padding:20px 32px 20px 0;position:relative;
  font-size:16px;font-weight:700;color:var(--ink);line-height:1.6;
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{
  content:"+";position:absolute;right:4px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--steel);transition:color 180ms var(--ease);
}
.faq-list details[open] summary::after{content:"–";color:var(--brand)}
.faq-list summary:hover{color:var(--brand)}
.faq-list .ans{padding:0 32px 22px 0;font-size:15px;line-height:1.8;color:var(--steel)}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink);color:var(--paper);border-radius:24px;
  padding:56px 48px;display:flex;flex-wrap:wrap;gap:28px;
  align-items:center;justify-content:space-between;
  background-image:repeating-linear-gradient(180deg,rgba(255,255,255,.08) 0 1px,transparent 1px 32px);
}
.cta-band h2{
  font-size:clamp(1.4rem,2.6vw,2rem);font-weight:900;line-height:1.25;color:#fff;max-width:640px;
}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(247,245,241,.75);max-width:560px}
.cta-band .cta-side{display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.cta-band .cta-note{font-size:13px;color:rgba(247,245,241,.6)}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink);color:rgba(247,245,241,.78);margin-top:16px;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.f-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.f-logo .dock-mark{background:rgba(247,245,241,.1);border:1px solid rgba(255,255,255,.18);color:#fff}
.f-name{font-size:17px;font-weight:900;color:#fff;letter-spacing:-.01em}
.footer .desc{font-size:14px;line-height:1.8;color:rgba(247,245,241,.65);max-width:360px}
.footer h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer ul a{font-size:14px;color:rgba(247,245,241,.72);transition:color 180ms var(--ease)}
.footer ul a:hover{color:var(--brand-2)}
.footer .contact li{display:flex;flex-direction:column;gap:2px;font-size:13px}
.footer .contact span{color:rgba(247,245,241,.5)}
.footer .contact b{color:rgba(247,245,241,.9);font-weight:600}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;
  font-size:13px;color:rgba(247,245,241,.55);
}
.footer-bottom .num{color:var(--brand-2);opacity:.85}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container{padding:0 24px}
  .read-grid{grid-template-columns:minmax(0,1fr);gap:44px}
  .side-col{position:static;flex-direction:row;flex-wrap:wrap}
  .side-col > *{flex:1 1 280px}
  .faq-layout{grid-template-columns:minmax(0,1fr);gap:28px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{padding-top:92px}
  .site-header{top:10px;padding:0 12px}
  .dock{flex-wrap:wrap;border-radius:24px;padding:10px 12px;gap:10px}
  .dock-toggle{display:inline-flex}
  .dock-nav{
    display:none;width:100%;flex-direction:column;align-items:stretch;gap:0;
    margin-top:8px;padding-top:8px;border-top:1px solid var(--line);
  }
  .dock-nav.is-open{display:flex}
  .dock-nav .dock-link{
    min-height:44px;padding:12px 8px;border-radius:0;
    border-bottom:1px solid var(--line);font-size:15px;justify-content:flex-start;
  }
  .dock-nav .dock-link:last-child{border-bottom:0}
  .dock-link.is-active::after{display:none}
  .dock-link.is-active{color:var(--brand)}
  .section{padding:48px 0}
  .section-lg{padding:64px 0}
  .article-hero{padding:36px 0 32px}
  .article-meta{gap:10px}
  .cta-band{padding:36px 24px;border-radius:18px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .footer{padding:48px 0 24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .mini-card .body{padding:20px}
  .side-col{flex-direction:column}
  .side-col > *{flex:1 1 auto}
}
@media (max-width:520px){
  .container{padding:0 20px}
  body{font-size:16px}
  .article-body{font-size:16px}
  .article-body > p:first-of-type{font-size:17px}
  .btn{width:100%}
  .pager{align-items:stretch}
}

/* roulang page: category1 */
:root{
  --ink:#0B0D10;
  --paper:#F7F5F1;
  --brand:#FF4A1C;
  --brand-2:#D6FF4B;
  --steel:#3A4048;
  --line:#E4E0D8;
  --ok:#16A34A;
  --warn:#E6A700;
  --ease:cubic-bezier(.22,1,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-0.02em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.num{font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 20px;}
@media (min-width:640px){.container{padding:0 24px;}}
@media (min-width:1024px){.container{padding:0 40px;}}

/* ---------- Dock 导航 ---------- */
.dock-wrap{position:fixed;top:16px;left:0;right:0;z-index:80;display:flex;flex-direction:column;align-items:center;padding:0 20px;pointer-events:none;}
.dock{
  pointer-events:auto;
  width:100%;max-width:1120px;height:64px;
  display:flex;align-items:center;gap:14px;
  padding:0 10px 0 14px;
  border:1px solid var(--line);border-radius:999px;
  background:rgba(247,245,241,.86);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:0 1px 2px rgba(11,13,16,.06);
  transition:height 180ms var(--ease),background 180ms var(--ease),box-shadow 180ms var(--ease);
}
.dock.is-scrolled{height:56px;background:rgba(247,245,241,.94);box-shadow:0 10px 30px -18px rgba(11,13,16,.35);}
.dock-brand{display:flex;align-items:center;gap:9px;flex:none;}
.dock-mark{
  width:34px;height:34px;flex:none;border-radius:10px;
  background:var(--brand);color:#fff;
  display:grid;place-items:center;
  font-weight:900;font-size:14px;letter-spacing:0;
  clip-path:polygon(0 0,100% 0,100% 74%,74% 100%,0 100%);
}
.dock-name{font-weight:900;font-size:15px;letter-spacing:-0.02em;white-space:nowrap;}
.dock-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.dock-link{
  position:relative;display:inline-flex;align-items:center;height:44px;
  padding:0 11px;font-size:14px;font-weight:500;color:#5d636b;white-space:nowrap;
  transition:color 180ms var(--ease);
}
.dock-link::after{
  content:'';position:absolute;left:11px;right:11px;bottom:8px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform 180ms var(--ease);
}
.dock-link:hover{color:var(--ink);}
.dock-link:hover::after{transform:scaleX(1);}
.dock-link.is-active{color:var(--ink);font-weight:900;}
.dock-link.is-active::after{transform:scaleX(1);}
.dock-actions{display:flex;align-items:center;gap:8px;margin-left:8px;}
.dock-icon{
  width:44px;height:44px;flex:none;border-radius:999px;border:1px solid var(--line);
  background:transparent;color:var(--steel);display:grid;place-items:center;cursor:pointer;
  transition:border-color 180ms var(--ease),color 180ms var(--ease),transform 180ms var(--ease);
}
.dock-icon:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.dock-cta{
  display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 20px;
  border-radius:999px;background:var(--brand);color:#fff;font-weight:700;font-size:14px;white-space:nowrap;
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),filter 180ms var(--ease);
}
.dock-cta:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 36px -14px rgba(11,13,16,.35);}
.dock-cta:active{transform:translateY(0) scale(.98);}
.dock-menu{
  display:none;width:44px;height:44px;flex:none;border-radius:999px;border:1px solid var(--line);
  background:transparent;color:var(--ink);place-items:center;cursor:pointer;
}
.dock-panel{
  pointer-events:auto;
  width:100%;max-width:1120px;margin-top:8px;border:1px solid var(--line);border-radius:18px;
  background:rgba(247,245,241,.97);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:0 16px 36px -14px rgba(11,13,16,.22);
  overflow:hidden;display:none;
}
.dock-panel.is-open{display:block;}
.dock-panel a{
  display:flex;align-items:center;min-height:52px;padding:0 20px;font-size:15px;color:var(--steel);
  border-bottom:1px solid var(--line);font-weight:500;
}
.dock-panel a:last-child{border-bottom:0;}
.dock-panel a.is-active{color:var(--ink);font-weight:900;box-shadow:inset 3px 0 0 var(--brand);}
@media (max-width:1023px){
  .dock-wrap{top:10px;padding:0 12px;}
  .dock-nav,.dock-icon{display:none;}
  .dock-menu{display:grid;}
  .dock-actions{margin-left:auto;}
  .dock-name{font-size:14px;}
}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--ink);overflow:hidden;padding:136px 0 0;min-height:560px;display:flex;align-items:center;}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.40;}
.hero-shade{position:absolute;inset:0;background:linear-gradient(96deg,rgba(11,13,16,.94) 0%,rgba(11,13,16,.78) 52%,rgba(11,13,16,.44) 100%);}
.hero-lanes{position:absolute;left:0;right:0;bottom:0;height:64px;opacity:.16;background-image:repeating-linear-gradient(90deg,#fff 0 2px,transparent 2px 26px);}
.hero-inner{position:relative;z-index:2;width:100%;padding-bottom:56px;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);white-space:nowrap;overflow:hidden;}
.crumb a{color:rgba(255,255,255,.78);}
.crumb a:hover{color:var(--brand-2);}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;margin-top:22px;
  padding:6px 14px;border-radius:999px;border:1px solid rgba(214,255,75,.4);
  background:rgba(214,255,75,.10);color:var(--brand-2);font-size:12px;font-weight:700;letter-spacing:.04em;
}
.hero h1{
  margin-top:18px;color:#fff;font-weight:900;letter-spacing:-0.025em;
  font-size:clamp(2rem,5vw,3.4rem);line-height:1.1;max-width:900px;
}
.hero-sub{margin-top:18px;max-width:640px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.76);}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:999px;font-size:15px;font-weight:700;
  border:1px solid transparent;cursor:pointer;
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),filter 180ms var(--ease),background 180ms var(--ease),border-color 180ms var(--ease),color 180ms var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 36px -14px rgba(255,74,28,.7);}
.btn-primary:active{transform:translateY(0) scale(.98);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.28);color:#fff;}
.btn-ghost:hover{background:rgba(255,74,28,.14);border-color:var(--brand);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0) scale(.98);}
.btn-dark{background:var(--ink);color:#fff;}
.btn-dark:hover{filter:brightness(1.12);transform:translateY(-2px);box-shadow:0 16px 36px -14px rgba(11,13,16,.5);}
.btn-outline{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-outline:hover{background:rgba(255,74,28,.08);border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.hero-stats{
  position:relative;z-index:2;border-top:1px solid rgba(255,255,255,.14);
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
}
.hero-stats div{padding:22px 0;}
.hero-stats b{display:block;font-size:clamp(1.35rem,2.4vw,1.9rem);font-weight:900;color:var(--brand-2);line-height:1.1;}
.hero-stats span{display:block;margin-top:6px;font-size:12px;color:rgba(255,255,255,.6);}
@media (max-width:767px){
  .hero{padding-top:112px;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .hero-stats div{padding:18px 0;}
}

/* ---------- 板块通用 ---------- */
.section{padding:72px 0;}
.section-tight{padding:56px 0;}
@media (min-width:1024px){.section{padding:96px 0;}.section-tight{padding:64px 0;}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:800;letter-spacing:.14em;
  text-transform:uppercase;color:var(--brand);
}
.eyebrow::before{content:'';width:22px;height:2px;background:var(--brand);border-radius:2px;}
.sec-head{max-width:760px;}
.sec-head h2{margin-top:14px;font-size:clamp(1.5rem,3vw,2.25rem);line-height:1.25;font-weight:800;}
.sec-head p{margin-top:14px;color:var(--steel);font-size:16px;line-height:1.8;}

/* ---------- 能力标签带 ---------- */
.cap-band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff;}
.cap-list{display:flex;flex-wrap:wrap;gap:12px;padding:20px 0;}
.cap-chip{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;
  border:1px solid var(--line);background:var(--paper);font-size:13px;font-weight:600;color:var(--steel);
  transition:border-color 180ms var(--ease),color 180ms var(--ease),transform 180ms var(--ease);
}
.cap-chip:hover{border-color:var(--brand);color:var(--ink);transform:translateY(-2px);}
.cap-dot{width:7px;height:7px;border-radius:50%;background:var(--brand);flex:none;}

/* ---------- 目录 + 行式条目 ---------- */
.catalog-grid{display:grid;grid-template-columns:minmax(0,300px) minmax(0,1fr);gap:40px;align-items:start;margin-top:44px;}
.toc{
  position:sticky;top:112px;border:1px solid var(--line);border-radius:18px;background:#fff;
  padding:24px;box-shadow:0 1px 2px rgba(11,13,16,.06);
}
.toc h3{font-size:15px;font-weight:900;letter-spacing:0;}
.toc ul{margin-top:16px;border-top:1px solid var(--line);}
.toc li a{
  display:flex;align-items:center;justify-content:space-between;min-height:44px;
  font-size:14px;color:var(--steel);border-bottom:1px solid var(--line);
  transition:color 180ms var(--ease),padding 180ms var(--ease);
}
.toc li a:hover{color:var(--brand);padding-left:4px;}
.toc li a span{color:var(--brand);font-weight:900;font-size:13px;}
.toc-note{margin-top:18px;font-size:13px;line-height:1.75;color:var(--steel);}
.toc .btn{width:100%;margin-top:16px;}

.row-list{display:flex;flex-direction:column;gap:14px;}
.row-card{
  display:grid;grid-template-columns:64px minmax(0,1fr) 32px;align-items:center;gap:20px;
  padding:22px 24px;border:1px solid var(--line);border-radius:18px;background:#fff;
  box-shadow:0 1px 2px rgba(11,13,16,.06);
  transition:transform 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.row-card:hover{transform:translateY(-5px);border-color:rgba(255,74,28,.3);box-shadow:0 16px 36px -14px rgba(11,13,16,.22);}
.row-idx{
  font-size:22px;font-weight:900;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-0.03em;
  border-left:3px solid var(--brand);padding-left:12px;line-height:1;
}
.row-title{display:block;font-size:17px;font-weight:700;}
.row-desc{display:block;margin-top:6px;font-size:14.5px;line-height:1.75;color:var(--steel);}
.row-arrow{font-size:18px;color:var(--steel);justify-self:end;transition:transform 180ms var(--ease),color 180ms var(--ease);}
.row-card:hover .row-arrow{transform:translateX(4px);color:var(--brand);}
@media (max-width:1023px){
  .catalog-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .toc{position:static;}
}
@media (max-width:520px){
  .row-card{grid-template-columns:minmax(0,1fr) 28px;gap:14px;padding:20px;}
  .row-idx{display:none;}
}

/* ---------- 适用场景卡片 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:44px;}
.scene-card{
  border:1px solid var(--line);border-radius:18px;background:#fff;overflow:hidden;
  box-shadow:0 1px 2px rgba(11,13,16,.06);
  transition:transform 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.scene-card:hover{transform:translateY(-5px);border-color:rgba(255,74,28,.3);box-shadow:0 16px 36px -14px rgba(11,13,16,.22);}
.scene-img{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--ink);}
.scene-img img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease);}
.scene-card:hover .scene-img img{transform:scale(1.05);}
.scene-img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,13,16,0) 40%,rgba(11,13,16,.55) 100%);}
.scene-tag{
  position:absolute;left:14px;bottom:12px;z-index:2;
  padding:4px 11px;border-radius:999px;background:var(--brand-2);color:var(--ink);
  font-size:11px;font-weight:800;letter-spacing:.04em;
}
.scene-body{padding:22px;}
.scene-body h3{font-size:17px;font-weight:700;}
.scene-body p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--steel);}
.scene-points{margin-top:16px;border-top:1px solid var(--line);padding-top:14px;}
.scene-points li{position:relative;padding-left:16px;font-size:13.5px;color:var(--steel);line-height:1.9;}
.scene-points li::before{content:'';position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand);}
@media (max-width:1023px){.scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:639px){.scene-grid{grid-template-columns:minmax(0,1fr);}}

/* ---------- 流程三步 ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:44px;}
.steps::before{
  content:'';position:absolute;top:40px;left:12%;right:12%;border-top:1px dashed var(--line);z-index:0;
}
.step{
  position:relative;z-index:1;background:var(--paper);padding:0 4px;
  transition:transform 180ms var(--ease);
}
.step:hover{transform:translateY(-5px);}
.step-no{
  width:80px;height:80px;border-radius:18px;background:#fff;border:1px solid var(--line);
  display:grid;place-items:center;font-size:26px;font-weight:900;color:var(--brand);
  font-variant-numeric:tabular-nums;letter-spacing:-0.03em;
  box-shadow:0 1px 2px rgba(11,13,16,.06);
}
.step h3{margin-top:20px;font-size:17px;font-weight:700;}
.step p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--steel);}
@media (max-width:767px){
  .steps{grid-template-columns:minmax(0,1fr);gap:28px;}
  .steps::before{top:0;bottom:0;left:39px;right:auto;border-top:0;border-left:1px dashed var(--line);}
  .step{padding-left:0;}
}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:minmax(0,360px) minmax(0,1fr);gap:48px;align-items:start;margin-top:44px;}
.faq-list{border-top:1px solid var(--line);}
.faq-list details{border-bottom:1px solid var(--line);}
.faq-list summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:18px 0;cursor:pointer;list-style:none;
  font-size:16px;font-weight:700;color:var(--ink);
}
.faq-list summary::-webkit-details-marker{display:none;}
.faq-list summary::after{
  content:'+';flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;font-size:15px;font-weight:700;color:var(--steel);
  transition:transform 180ms var(--ease),border-color 180ms var(--ease),color 180ms var(--ease);
}
.faq-list details[open] summary::after{content:'−';border-color:var(--brand);color:var(--brand);transform:rotate(180deg);}
.faq-list .ans{padding:0 0 20px;font-size:15px;line-height:1.85;color:var(--steel);max-width:760px;}
@media (max-width:1023px){.faq-grid{grid-template-columns:minmax(0,1fr);gap:28px;}}

/* ---------- CTA ---------- */
.cta{background:var(--ink);color:#fff;position:relative;overflow:hidden;}
.cta::after{
  content:'';position:absolute;right:-80px;top:-80px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,74,28,.28) 0%,rgba(255,74,28,0) 70%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:56px;padding:72px 0;}
.cta h2{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:800;line-height:1.28;}
.cta p{margin-top:16px;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.72);max-width:560px;}
.cta-meta{margin-top:26px;display:flex;flex-wrap:wrap;gap:22px;}
.cta-meta div{border-left:2px solid var(--brand);padding-left:12px;}
.cta-meta span{display:block;font-size:12px;color:rgba(255,255,255,.55);}
.cta-meta b{display:block;font-size:15px;font-weight:700;margin-top:4px;}
.form-card{border:1px solid rgba(255,255,255,.14);border-radius:18px;background:rgba(255,255,255,.04);padding:26px;}
.form-card h3{font-size:16px;font-weight:800;}
.field{margin-top:16px;}
.field label{display:block;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;border-radius:12px;
  border:1px solid rgba(255,255,255,.18);background:rgba(11,13,16,.5);color:#fff;
  font-family:inherit;font-size:14.5px;transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.field textarea{min-height:84px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:rgba(255,255,255,.35);}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,74,28,.22);}
.form-card .btn{width:100%;margin-top:20px;}
.form-note{margin-top:12px;font-size:12px;line-height:1.7;color:rgba(255,255,255,.5);}
@media (max-width:1023px){.cta-inner{grid-template-columns:minmax(0,1fr);gap:32px;padding:56px 0;}}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink);color:#b9bec5;padding-top:64px;}
.footer-inner{width:100%;max-width:1280px;margin:0 auto;padding:0 20px;}
@media (min-width:640px){.footer-inner{padding:0 24px;}}
@media (min-width:1024px){.footer-inner{padding:0 40px;}}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1.1fr 1.2fr;gap:36px;}
.f-logo{display:flex;align-items:center;gap:10px;}
.f-name{font-weight:900;font-size:16px;color:#fff;letter-spacing:-0.02em;}
.footer .desc{margin-top:16px;font-size:14px;line-height:1.85;color:#8f959d;max-width:360px;}
.footer h4{font-size:14px;font-weight:800;color:#fff;letter-spacing:0;}
.footer ul{margin-top:16px;}
.footer ul li{margin-bottom:10px;font-size:14px;}
.footer ul li a{color:#9ba1a8;transition:color 180ms var(--ease);}
.footer ul li a:hover{color:var(--brand-2);}
.contact li{display:flex;flex-direction:column;gap:2px;margin-bottom:14px;}
.contact li span{font-size:12px;color:#767c84;}
.contact li b{font-size:14px;font-weight:600;color:#d5d9de;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#767c84;
}
.footer-bottom .num{color:#9ba1a8;}
@media (max-width:1023px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}}
@media (max-width:600px){.footer-grid{grid-template-columns:minmax(0,1fr);}}

/* roulang page: category2 */
:root{
  --ink:#0B0D10;
  --paper:#F7F5F1;
  --white:#FFFFFF;
  --brand:#FF4A1C;
  --brand-2:#D6FF4B;
  --steel:#3A4048;
  --line:#E4E0D8;
  --ok:#16A34A;
  --warn:#E6A700;
  --r-card:18px;
  --r-btn:12px;
  --r-img:14px;
  --sh-rest:0 1px 2px rgba(11,13,16,.06);
  --sh-hover:0 16px 36px -14px rgba(11,13,16,.22);
  --ease:cubic-bezier(.22,1,.36,1);
  --fs-h1:clamp(2rem,5vw,3.5rem);
  --fs-h2:clamp(1.5rem,3vw,2.25rem);
}
*,*::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:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.2;letter-spacing:-.01em;font-weight:800}
h1{font-size:var(--fs-h1);line-height:1.1;font-weight:900;letter-spacing:-.02em}
h2{font-size:var(--fs-h2);line-height:1.25}
h3{font-size:1.25rem;font-weight:700;line-height:1.35}
h4{font-size:1rem;font-weight:700}
p{margin:0}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 40px}}
.section{padding:64px 0}
@media (min-width:1024px){.section{padding:96px 0}}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .lead{margin-top:16px;color:var(--steel);font-size:16px;line-height:1.8}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--brand);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);display:block}
.muted{color:var(--steel);opacity:.86}

/* ---------- Dock 导航 ---------- */
.dock-wrap{
  position:fixed;top:16px;left:0;right:0;z-index:80;
  padding:0 20px;pointer-events:none;
}
.dock{
  pointer-events:auto;
  max-width:1120px;margin:0 auto;
  display:flex;align-items:center;gap:14px;
  height:64px;padding:0 10px 0 18px;
  border-radius:999px;
  background:rgba(247,245,241,.86);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border:1px solid var(--line);
  box-shadow:0 12px 32px -22px rgba(11,13,16,.45);
  transition:height 180ms var(--ease),background 180ms var(--ease);
}
.dock.is-compact{height:56px;background:rgba(247,245,241,.94)}
.dock-brand{display:flex;align-items:center;gap:10px;flex:none;padding-right:6px}
.dock-mark{
  width:34px;height:34px;flex:none;display:grid;place-items:center;
  background:var(--ink);color:var(--brand-2);
  border-radius:11px;
  font-weight:900;font-size:14px;letter-spacing:-.03em;
  clip-path:polygon(0 0,100% 0,100% 74%,74% 100%,0 100%);
}
.dock-mark span{transform:translateY(-1px)}
.dock-name{font-weight:900;font-size:16px;letter-spacing:-.02em;white-space:nowrap}
.dock-nav{display:none;align-items:center;gap:2px;margin-left:8px;flex:1}
@media (min-width:1024px){.dock-nav{display:flex}}
.dock-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 14px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--steel);
  transition:color 180ms var(--ease),background 180ms var(--ease);
  white-space:nowrap;
}
.dock-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:8px;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform 180ms var(--ease);
}
.dock-link:hover{color:var(--ink);background:rgba(11,13,16,.04)}
.dock-link:hover::after{transform:scaleX(1)}
.dock-link.is-active{color:var(--ink);font-weight:900}
.dock-link.is-active::after{transform:scaleX(1)}
.dock-right{display:flex;align-items:center;gap:8px;margin-left:auto;flex:none}
.dock-icon{
  width:44px;height:44px;display:grid;place-items:center;border-radius:999px;
  color:var(--steel);border:1px solid transparent;
  transition:all 180ms var(--ease);
}
.dock-icon:hover{color:var(--ink);border-color:var(--line);background:rgba(255,255,255,.7)}
.dock-cta{min-height:44px;padding:0 20px;font-size:15px;display:none}
@media (min-width:640px){.dock-cta{display:inline-flex}}
.dock-burger{width:44px;height:44px;display:grid;place-items:center;border-radius:999px;border:1px solid var(--line)}
@media (min-width:1024px){.dock-burger{display:none}}
.dock-panel{
  pointer-events:auto;
  max-width:1120px;margin:10px auto 0;
  background:rgba(247,245,241,.97);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border:1px solid var(--line);border-radius:22px;
  box-shadow:var(--sh-hover);
  overflow:hidden;display:none;
}
.dock-panel.is-open{display:block}
.dock-panel a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 20px;font-size:15px;font-weight:600;color:var(--steel);
  border-bottom:1px solid var(--line);
}
.dock-panel a:last-child{border-bottom:0}
.dock-panel a.is-active{color:var(--ink);font-weight:900}
.dock-panel a span{color:var(--brand)}

/* ---------- 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(--r-btn);
  font-size:15px;font-weight:700;border:1px solid transparent;
  transition:all 180ms var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-rest)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:var(--sh-hover)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);background:rgba(255,74,28,.08);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0) scale(.98)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.02em;
  background:var(--brand-2);color:var(--ink);
}
.badge-outline{background:transparent;border:1px solid var(--line);color:var(--steel)}
.chip{
  display:inline-flex;align-items:center;
  padding:8px 16px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.6);
  font-size:13px;font-weight:600;color:var(--steel);
  transition:all 180ms var(--ease);
}
.chip:hover{border-color:var(--brand);color:var(--ink);background:#fff;transform:translateY(-2px)}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:700;color:var(--brand);
  background-image:linear-gradient(currentColor,currentColor);
  background-repeat:no-repeat;background-position:0 100%;background-size:0 1px;
  transition:background-size 180ms var(--ease);
  padding-bottom:2px;
}
.text-link:hover{background-size:100% 1px}
.text-link .arw{transition:transform 180ms var(--ease)}
.text-link:hover .arw{transform:translateX(4px)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:128px 0 56px;overflow:hidden}
@media (min-width:1024px){.hero{padding:152px 0 80px}}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(90deg,rgba(11,13,16,.045) 0 1px,transparent 1px 96px);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr;gap:40px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.08fr .92fr;gap:56px}}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--steel);opacity:.85;margin-bottom:20px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.crumb a:hover{color:var(--brand)}
.crumb .sep{opacity:.5}
.crumb .cur{color:var(--steel);opacity:.95}
.hero h1{margin:0 0 20px}
.hero h1 .accent{color:var(--brand)}
.hero-sub{font-size:17px;line-height:1.8;color:var(--steel);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 24px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:32px}
.metrics{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 16px;
  padding-top:26px;border-top:1px solid var(--line);
}
@media (min-width:768px){.metrics{grid-template-columns:repeat(4,minmax(0,1fr))}}
.metrics b{display:block;font-size:clamp(1.35rem,2.6vw,1.9rem);font-weight:900;line-height:1;color:var(--brand)}
.metrics b.lime{color:#7a9a00}
.metrics span{display:block;margin-top:8px;font-size:12.5px;color:var(--steel);opacity:.82;line-height:1.5}
.hero-media{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-hover);border:1px solid var(--line)}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,13,16,.12),rgba(11,13,16,.58))}
.hero-media figcaption{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;color:#fff;
  font-size:13.5px;line-height:1.65;
}
.hero-media .plate{
  position:absolute;top:18px;left:18px;z-index:2;
  padding:8px 14px;border-radius:8px;
  background:var(--brand-2);color:var(--ink);
  font-size:12px;font-weight:800;letter-spacing:.02em;
  clip-path:polygon(0 0,100% 0,100% 70%,88% 100%,0 100%);
}

/* ---------- 交替图文 ---------- */
.alt-list{display:grid;gap:0}
.alt-item{
  display:grid;grid-template-columns:1fr;gap:24px;align-items:center;
  padding:36px 0;border-top:1px solid var(--line);
}
.alt-item:first-child{border-top:0;padding-top:0}
@media (min-width:1024px){
  .alt-item{grid-template-columns:1fr 1fr;gap:56px;padding:44px 0}
  .alt-item.reverse .alt-media{order:2}
  .alt-item.reverse .alt-body{order:1}
}
.alt-media{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-rest);transition:all 180ms var(--ease)}
.alt-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.alt-item:hover .alt-media{border-color:rgba(255,74,28,.3);box-shadow:var(--sh-hover);transform:translateY(-4px)}
.alt-body h3{margin-bottom:14px}
.alt-body p{color:var(--steel);font-size:15.5px;line-height:1.8;margin-bottom:10px}
.alt-body .text-link{margin-top:14px}
.alt-index{
  display:inline-block;margin-bottom:14px;
  font-size:12px;font-weight:800;letter-spacing:.14em;color:var(--steel);opacity:.6;
}

/* ---------- 深色 band + 对照表 ---------- */
.band-dark{position:relative;background:var(--ink);color:#F7F5F1;overflow:hidden}
.band-dark::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.055) 0 1px,transparent 1px 104px);
}
.band-dark .section-head .lead{color:rgba(247,245,241,.72)}
.band-dark .eyebrow{color:var(--brand-2)}
.band-dark .eyebrow::before{background:var(--brand-2)}
.table-wrap{position:relative;overflow-x:auto;border:1px solid rgba(255,255,255,.14);border-radius:var(--r-card);background:rgba(255,255,255,.03)}
.cmp-table{width:100%;min-width:640px;border-collapse:collapse;font-size:14.5px}
.cmp-table th{
  text-align:left;padding:16px 20px;font-size:13px;font-weight:700;letter-spacing:.04em;
  color:rgba(247,245,241,.72);border-bottom:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.05);
}
.cmp-table td{padding:16px 20px;border-bottom:1px solid rgba(255,255,255,.1);color:rgba(247,245,241,.86);vertical-align:top;line-height:1.7}
.cmp-table tr:last-child td{border-bottom:0}
.cmp-table td:first-child{color:#fff;font-weight:700;white-space:nowrap}
.band-notes{display:grid;gap:16px;margin-top:28px}
@media (min-width:768px){.band-notes{grid-template-columns:repeat(3,minmax(0,1fr))}}
.band-note{
  padding:20px;border:1px solid rgba(255,255,255,.14);border-radius:var(--r-img);
  background:rgba(255,255,255,.03);
}
.band-note b{display:block;font-size:15px;margin-bottom:8px;color:#fff}
.band-note p{font-size:14px;line-height:1.75;color:rgba(247,245,241,.68)}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:1024px){.steps{grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px 26px 54px;box-shadow:var(--sh-rest);
  transition:all 180ms var(--ease);
}
@media (min-width:1024px){.step{padding:32px 26px 30px}}
.step:hover{border-color:rgba(255,74,28,.3);box-shadow:var(--sh-hover);transform:translateY(-4px)}
@media (max-width:1023px){
  .step{padding-left:56px}
  .step::before{content:"";position:absolute;left:26px;top:0;bottom:0;width:2px;background:var(--line)}
  .step:first-child::before{top:32px}
  .step:last-child::before{bottom:auto;height:32px}
}
.step-num{
  font-size:34px;font-weight:900;line-height:1;letter-spacing:-.03em;
  color:transparent;-webkit-text-stroke:1.5px var(--brand);
  font-variant-numeric:tabular-nums;
}
@media (min-width:1024px){.step-num{font-size:44px}}
.step h3{margin:16px 0 12px;font-size:1.125rem}
.step p{color:var(--steel);font-size:14.5px;line-height:1.78}
.step .step-tag{display:inline-block;margin-top:16px;font-size:12px;font-weight:700;color:var(--steel);opacity:.7}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr;gap:28px}
@media (min-width:1024px){.faq-grid{grid-template-columns:0.85fr 1.15fr;gap:56px}}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:16px;
  padding:20px 4px;font-size:16px;font-weight:700;color:var(--ink);
  min-height:44px;transition:color 180ms var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary .qm{flex:none;width:22px;height:22px;margin-top:3px;position:relative}
.faq-item summary .qm::before,
.faq-item summary .qm::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform 180ms var(--ease);
}
.faq-item summary .qm::before{left:0;top:10px;width:18px;height:2px}
.faq-item summary .qm::after{left:8px;top:2px;width:2px;height:18px}
.faq-item[open] summary .qm::after{transform:scaleY(0)}
.faq-item p{padding:0 4px 22px 38px;font-size:15px;line-height:1.85;color:var(--steel)}

/* ---------- CTA + 表单 ---------- */
.cta-panel{
  position:relative;background:var(--ink);color:#F7F5F1;border-radius:24px;
  padding:36px 24px;overflow:hidden;
}
@media (min-width:768px){.cta-panel{padding:48px 40px}}
@media (min-width:1024px){.cta-panel{padding:56px 56px}}
.cta-panel::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.06) 0 1px,transparent 1px 88px);
}
.cta-grid{position:relative;display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:1024px){.cta-grid{grid-template-columns:1fr 1fr;gap:56px;align-items:start}}
.cta-panel h2{color:#fff;margin-bottom:16px}
.cta-panel p{color:rgba(247,245,241,.72);font-size:15.5px;line-height:1.8}
.cta-points{margin-top:22px;display:grid;gap:10px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(247,245,241,.8)}
.cta-points li::before{content:"";width:7px;height:7px;border-radius:999px;background:var(--brand-2);flex:none;margin-top:9px}
.form-card{
  background:rgba(247,245,241,.97);color:var(--ink);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-hover);
}
@media (min-width:768px){.form-card{padding:28px}}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:700;color:var(--steel);margin-bottom:8px}
.field input,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;
  border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;font-size:15px;line-height:1.5;
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.field textarea{resize:vertical;min-height:92px}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,74,28,.14)}
.form-card .btn{width:100%}
.form-tip{margin-top:12px;font-size:12.5px;line-height:1.6;color:var(--steel);opacity:.8}
.form-ok{margin-top:12px;font-size:13.5px;font-weight:700;color:var(--ok)}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink);color:rgba(247,245,241,.72);padding:56px 0 24px;margin-top:0}
.footer-inner{position:relative}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px}}
.f-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.f-name{font-weight:900;font-size:16px;color:#fff;letter-spacing:-.02em}
.footer h4{color:#fff;font-size:14px;margin-bottom:16px;letter-spacing:.02em}
.footer .desc{font-size:14px;line-height:1.8;color:rgba(247,245,241,.62);max-width:340px}
.footer ul li{margin-bottom:10px}
.footer ul a{font-size:14px;color:rgba(247,245,241,.72);transition:color 180ms var(--ease)}
.footer ul a:hover{color:var(--brand-2)}
.footer .contact li{display:flex;flex-direction:column;gap:2px;margin-bottom:14px}
.footer .contact span{font-size:12px;color:rgba(247,245,241,.5)}
.footer .contact b{font-size:14px;font-weight:600;color:rgba(247,245,241,.86)}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12.5px;color:rgba(247,245,241,.5);
}
@media (max-width:640px){
  .dock-wrap{padding:0 12px;top:10px}
  .dock{padding:0 8px 0 14px;gap:8px}
  .dock-name{font-size:15px}
  .hero-actions .btn{width:100%}
}

/* roulang page: category3 */
:root{
  --ink:#0B0D10;
  --paper:#F7F5F1;
  --brand:#FF4A1C;
  --brand2:#D6FF4B;
  --steel:#3A4048;
  --line:#E4E0D8;
  --ok:#16A34A;
  --warn:#E6A700;
  --r-card:18px;
  --r-btn:12px;
  --shadow-rest:0 1px 2px rgba(11,13,16,.06);
  --shadow-hover:0 16px 36px -14px rgba(11,13,16,.22);
  --ease:cubic-bezier(.22,1,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body.page-body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--paper);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease)}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 40px}}

/* ============ 浮动 Dock 导航 ============ */
.dock-wrap{position:fixed;top:16px;left:0;right:0;z-index:80;display:flex;justify-content:center;padding:0 20px;pointer-events:none}
.dock{
  pointer-events:auto;position:relative;
  width:100%;max-width:1120px;
  display:flex;align-items:center;gap:10px;
  height:64px;padding:8px 10px 8px 16px;
  border:1px solid var(--line);border-radius:999px;
  background:rgba(247,245,241,.86);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:0 12px 32px -20px rgba(11,13,16,.45);
  transition:height .18s var(--ease),background-color .18s var(--ease),box-shadow .18s var(--ease);
}
.dock.is-scrolled{height:56px;background:rgba(247,245,241,.94);box-shadow:0 14px 34px -18px rgba(11,13,16,.5)}
.dock-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.dock-logo:hover{color:var(--ink)}
.dock-mark{width:34px;height:34px;border-radius:999px;background:var(--ink);color:#fff;display:grid;place-items:center;font-size:12px;font-weight:900;letter-spacing:.02em;flex:0 0 auto}
.dock-mark span{line-height:1}
.dock-name{font-size:16px;font-weight:900;letter-spacing:-.02em;white-space:nowrap}
.dock-nav{display:none;flex:1;align-items:center;justify-content:center;gap:2px}
@media (min-width:1024px){.dock-nav{display:flex}}
.dock-link{position:relative;display:inline-flex;align-items:center;height:40px;padding:0 13px;border-radius:999px;font-size:14px;font-weight:500;color:var(--steel);white-space:nowrap;transition:color .18s var(--ease),background-color .18s var(--ease)}
.dock-link:hover{color:var(--ink);background:rgba(11,13,16,.05)}
.dock-link.is-active{color:var(--ink);font-weight:900}
.dock-link.is-active::after{content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;background:var(--brand)}
.dock-actions{display:flex;align-items:center;gap:8px;margin-left:auto}
.icon-btn{display:grid;place-items:center;width:44px;height:44px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--steel);transition:color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease)}
.icon-btn:hover{color:var(--brand);border-color:rgba(255,74,28,.5);transform:translateY(-2px)}
.dock-cta{min-height:44px;padding:0 20px;font-size:14px}
.menu-btn{display:grid;place-items:center;width:44px;height:44px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink)}
@media (min-width:1024px){.menu-btn{display:none}}
.dock-panel{
  position:absolute;top:calc(100% + 10px);left:0;right:0;display:none;
  padding:10px;border:1px solid var(--line);border-radius:22px;
  background:rgba(247,245,241,.98);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:var(--shadow-hover);
}
.dock-panel.is-open{display:block}
@media (min-width:1024px){.dock-panel{display:none !important}}
.dock-panel a{display:flex;align-items:center;min-height:48px;padding:0 16px;border-radius:14px;font-size:15px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line)}
.dock-panel a:last-child{border-bottom:0}
.dock-panel a.is-active{color:var(--brand)}
@media (max-width:767px){
  .dock-wrap{top:10px;left:12px;right:12px;padding:0}
  .dock{height:58px;padding:6px 8px 6px 12px}
  .dock.is-scrolled{height:54px}
  .dock-name{font-size:15px}
}

/* ============ 按钮与通用元素 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;cursor:pointer;
  transition:transform .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.btn:active{transform:translateY(0) scale(.98)}
.btn-primary{background:var(--brand);color:#fff;border-radius:999px}
.btn-primary:hover{background:#FF5F36;color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px -14px rgba(255,74,28,.6)}
.btn-ghost-light{border-radius:999px;border-color:rgba(255,255,255,.3);color:#fff;background:transparent}
.btn-ghost-light:hover{border-color:var(--brand);background:rgba(255,74,28,.16);color:#fff;transform:translateY(-2px)}
.chip{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;font-size:12px;font-weight:800;letter-spacing:.06em}
.chip-lime{background:var(--brand2);color:#39420f}
.chip-ghost-light{border:1px solid rgba(255,255,255,.24);color:rgba(255,255,255,.86)}
.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;font-size:11px;font-weight:800;letter-spacing:.06em;background:rgba(214,255,75,.55);color:#39420f;border:1px solid rgba(11,13,16,.08)}
.badge-ink{background:var(--ink);color:#fff;border-color:var(--ink)}
.link-more{position:relative;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:800;color:var(--brand)}
.link-more::after{content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;background:currentColor;transition:width .18s var(--ease)}
.link-more:hover{color:var(--brand)}
.link-more:hover::after{width:calc(100% - 20px)}
.link-more em{font-style:normal;transition:transform .18s var(--ease)}
.link-more:hover em{transform:translateX(4px)}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.6);overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.crumb a{color:rgba(255,255,255,.6)}
.crumb a:hover{color:var(--brand2)}
.crumb .sep{opacity:.5}
.crumb .cur{color:rgba(255,255,255,.9);font-weight:700}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:118px 0 64px}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.045) 0 1px,transparent 1px 78px);
}
@media (min-width:1024px){.hero{padding:150px 0 88px}}
.hero-inner{position:relative;display:grid;gap:40px;align-items:center}
@media (min-width:1024px){.hero-inner{grid-template-columns:7fr 5fr;gap:56px}}
.hero h1{font-size:clamp(2rem,5vw,3.5rem);line-height:1.1;font-weight:900;letter-spacing:-.02em;margin:18px 0 0}
.hero-sub{margin-top:16px;font-size:clamp(1.05rem,2vw,1.25rem);font-weight:700;color:var(--brand2);line-height:1.6}
.hero-text{margin-top:14px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.74);max-width:60ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);border:1px solid rgba(255,255,255,.14)}
.hero-media::after{content:"";position:absolute;inset:0;border-radius:var(--r-card);background:linear-gradient(180deg,rgba(11,13,16,0) 45%,rgba(11,13,16,.55) 100%)}
.hero-media figcaption{position:absolute;left:18px;bottom:16px;z-index:1;font-size:13px;font-weight:700;color:#fff;letter-spacing:.02em}
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;margin-top:48px;border:1px solid rgba(255,255,255,.14);border-radius:var(--r-card);overflow:hidden;background:rgba(255,255,255,.14)}
@media (min-width:768px){.stats{grid-template-columns:repeat(4,1fr)}}
.stat{background:rgba(11,13,16,.78);padding:22px 20px}
.stat .n{font-size:clamp(1.5rem,3vw,2rem);font-weight:900;letter-spacing:-.02em;color:var(--brand2);font-variant-numeric:tabular-nums;line-height:1.1}
.stat .t{margin-top:8px;font-size:13.5px;font-weight:700;color:#fff}
.stat .d{margin-top:4px;font-size:12px;line-height:1.6;color:rgba(255,255,255,.5)}

/* ============ 区块 ============ */
.sec{padding:64px 0}
@media (min-width:1024px){.sec{padding:96px 0}}
.band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:40px}
.eyebrow{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.16em;color:var(--brand)}
.h2{font-size:clamp(1.5rem,3vw,2.25rem);line-height:1.25;font-weight:800;letter-spacing:-.02em;margin-top:12px}
.lead{margin-top:14px;font-size:16px;line-height:1.8;color:var(--steel)}

/* ============ 活动类型卡片（斜切角） ============ */
.types-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:768px){.types-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.types-grid{grid-template-columns:repeat(3,1fr)}}
.slab-wrap{filter:drop-shadow(0 1px 2px rgba(11,13,16,.07));transition:transform .18s var(--ease),filter .18s var(--ease)}
.slab-wrap:hover{transform:translateY(-4px);filter:drop-shadow(0 16px 30px rgba(11,13,16,.16))}
.slab{
  height:100%;display:flex;flex-direction:column;background:#fff;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 22px),calc(100% - 22px) 100%,0 100%);
  box-shadow:inset 0 0 0 1px var(--line);
  transition:box-shadow .18s var(--ease);
}
.slab-wrap:hover .slab{box-shadow:inset 0 0 0 1px rgba(255,74,28,.42)}
.slab-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--ink)}
.slab-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.slab-wrap:hover .slab-media img{transform:scale(1.05)}
.slab-media .badge{position:absolute;left:14px;top:14px;background:rgba(214,255,75,.92);color:#39420f;border-color:transparent}
.slab-body{display:flex;flex-direction:column;gap:12px;flex:1;padding:22px}
.slab-body h3{font-size:1.125rem;line-height:1.4;font-weight:800}
.slab-body p{font-size:14.5px;line-height:1.75;color:var(--steel)}
.slab-foot{margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--steel);font-variant-numeric:tabular-nums}
.slab-foot .tl{font-weight:900;color:var(--ink);letter-spacing:-.01em}

/* ============ 流程步骤 ============ */
.steps{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(5,1fr)}}
.step{position:relative;padding:24px;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease)}
.step:hover{transform:translateY(-4px);border-color:rgba(255,74,28,.42);box-shadow:var(--shadow-hover)}
.step .num{display:block;font-size:1.5rem;font-weight:900;letter-spacing:-.02em;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1}
.step h3{margin:14px 0 8px;font-size:1rem;font-weight:800;line-height:1.45}
.step p{font-size:14px;line-height:1.7;color:var(--steel)}

/* ============ 图文交替 ============ */
.split{display:grid;gap:28px;align-items:center}
@media (min-width:1024px){.split{grid-template-columns:1fr 1fr;gap:56px}}
.split + .split{margin-top:48px}
@media (min-width:1024px){.split + .split{margin-top:88px}}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);border:1px solid var(--line)}
.split-body h3{font-size:clamp(1.25rem,2.4vw,1.5rem);font-weight:800;line-height:1.35;margin-top:14px}
.split-body p{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--steel)}
.split-list{margin-top:20px;display:grid;gap:10px}
.split-list li{position:relative;padding-left:20px;font-size:14.5px;line-height:1.75;color:var(--steel)}
.split-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--brand)}
.split .link-more{margin-top:20px}
@media (min-width:1024px){
  .split.reverse .split-media{order:2}
  .split.reverse .split-body{order:1}
}

/* ============ 案例与数据 ============ */
.case-grid{display:grid;gap:24px}
@media (min-width:1024px){.case-grid{grid-template-columns:8fr 4fr;align-items:stretch}}
.case-main{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid rgba(255,255,255,.12);min-height:340px;display:flex;align-items:flex-end}
.case-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.case-main::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,13,16,.1) 30%,rgba(11,13,16,.86) 100%)}
.case-main .body{position:relative;z-index:1;padding:32px}
.case-main h3{font-size:clamp(1.25rem,2.4vw,1.6rem);font-weight:800;line-height:1.35;color:#fff}
.case-main p{margin-top:12px;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.76);max-width:52ch}
.case-main .meta{margin-top:18px;display:flex;flex-wrap:wrap;gap:10px 20px;font-size:13px;font-variant-numeric:tabular-nums;color:rgba(255,255,255,.62)}
.case-side{display:grid;gap:24px}
.case-side a{display:flex;gap:16px;padding:16px;border:1px solid rgba(255,255,255,.12);border-radius:var(--r-card);background:rgba(255,255,255,.04);transition:border-color .18s var(--ease),transform .18s var(--ease),background-color .18s var(--ease)}
.case-side a:hover{border-color:rgba(255,74,28,.6);transform:translateY(-4px);background:rgba(255,74,28,.08)}
.case-side img{width:96px;height:96px;flex:0 0 auto;border-radius:14px;object-fit:cover}
.case-side h4{font-size:15px;font-weight:800;color:#fff;line-height:1.45}
.case-side p{margin-top:8px;font-size:13px;line-height:1.7;color:rgba(255,255,255,.66)}
.kpis{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:56px;padding-top:40px;border-top:1px solid rgba(255,255,255,.14)}
@media (min-width:1024px){.kpis{grid-template-columns:repeat(4,1fr)}}
.kpi .n{font-size:clamp(1.75rem,3vw,2.5rem);font-weight:900;letter-spacing:-.02em;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.05}
.kpi .t{margin-top:8px;font-size:14px;font-weight:700;color:#fff}
.kpi .d{margin-top:4px;font-size:12.5px;line-height:1.65;color:rgba(255,255,255,.5)}
.sec-ink{position:relative;background:var(--ink);color:#fff;overflow:hidden}
.sec-ink::before{content:"";position:absolute;inset:0;pointer-events:none;background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 64px)}
.sec-ink .container{position:relative}
.sec-ink .lead{color:rgba(255,255,255,.7)}
.sec-ink .eyebrow{color:var(--brand2)}

/* ============ FAQ ============ */
.faq{max-width:900px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:44px;padding:20px 0;font-size:16px;font-weight:700;color:var(--ink);
  cursor:pointer;list-style:none;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:20px;font-weight:400;color:var(--brand);line-height:1;transition:transform .18s var(--ease)}
.faq details[open] summary::after{content:"–"}
.faq summary:hover{color:var(--brand)}
.faq .ans{padding:0 0 22px;max-width:780px;font-size:15px;line-height:1.85;color:var(--steel)}

/* ============ CTA ============ */
.cta{position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:72px 0}
@media (min-width:1024px){.cta{padding:88px 0}}
.cta::before{content:"";position:absolute;inset:0;pointer-events:none;background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 44px)}
.cta-inner{position:relative;display:flex;flex-direction:column;gap:28px;align-items:flex-start}
@media (min-width:1024px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:48px}}
.cta h2{font-size:clamp(1.5rem,3vw,2.25rem);line-height:1.25;font-weight:900;letter-spacing:-.02em}
.cta p{margin-top:14px;max-width:62ch;font-size:15px;line-height:1.8;color:rgba(255,255,255,.7)}
.cta .btn{flex:0 0 auto}

/* ============ 页脚 ============ */
.footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:40px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:48px}}
.f-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.f-logo .dock-mark{background:#fff;color:var(--ink)}
.f-name{font-size:18px;font-weight:900;letter-spacing:-.02em;color:#fff}
.footer .desc{max-width:40ch;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6)}
.footer h4{margin-bottom:16px;font-size:15px;font-weight:800;color:#fff}
.footer ul li{margin-bottom:10px}
.footer ul a{font-size:14px;color:rgba(255,255,255,.66)}
.footer ul a:hover{color:var(--brand2)}
.footer .contact li{display:flex;justify-content:space-between;gap:14px;font-size:14px}
.footer .contact span{color:rgba(255,255,255,.45)}
.footer .contact b{font-weight:600;color:#fff;text-align:right}
.footer-bottom{margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.48)}
.footer-bottom .num{font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* roulang page: category4 */
:root{
  --ink:#0B0D10;
  --paper:#F7F5F1;
  --brand:#FF4A1C;
  --brand-2:#D6FF4B;
  --steel:#3A4048;
  --line:#E4E0D8;
  --ok:#16A34A;
  --warn:#E6A700;
  --radius-card:18px;
  --radius-btn:12px;
  --ease:cubic-bezier(.22,1,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:120px;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.num{font-variant-numeric:tabular-nums;}

.container{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:768px){.container{padding:0 24px;}}
@media (min-width:1024px){.container{padding:0 40px;}}

/* ============ Dock 导航 ============ */
.dock{
  position:fixed;
  top:16px;
  left:0;right:0;
  z-index:70;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
  padding:0 20px;
  pointer-events:none;
}
.dock-inner{
  pointer-events:auto;
  width:100%;
  max-width:1120px;
  height:62px;
  display:flex;
  align-items:center;
  gap:16px;
  padding:8px 14px;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(247,245,241,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:0 8px 24px -14px rgba(11,13,16,.28);
  transition:height 180ms var(--ease),background 180ms var(--ease),box-shadow 180ms var(--ease);
}
.dock.is-scrolled .dock-inner{
  height:54px;
  background:rgba(247,245,241,.94);
  box-shadow:0 14px 30px -16px rgba(11,13,16,.34);
}
.dock-logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.dock-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:10px;
  background:var(--ink);
  color:var(--brand-2);
  font-weight:900;
  font-size:13px;
  letter-spacing:-.02em;
}
.dock-name{font-weight:900;font-size:15px;letter-spacing:-.02em;white-space:nowrap;}
.dock-nav{display:flex;align-items:center;justify-content:center;gap:2px;flex:1 1 auto;}
.dock-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 12px;
  border-radius:999px;
  font-size:14px;
  font-weight:500;
  color:var(--steel);
  white-space:nowrap;
  transition:color 180ms var(--ease),background 180ms var(--ease);
}
.dock-link:hover{color:var(--ink);background:rgba(255,74,28,.08);}
.dock-link.is-active{color:var(--ink);font-weight:900;}
.dock-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:4px;
  height:2px;border-radius:2px;background:var(--brand);
}
.dock-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:999px;
  background:transparent;
  color:var(--steel);
  cursor:pointer;
  transition:border-color 180ms var(--ease),color 180ms var(--ease),background 180ms var(--ease);
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:rgba(255,74,28,.06);}
.dock-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:999px;
  background:transparent;
  color:var(--ink);
  cursor:pointer;
}
.dock-toggle:hover{border-color:var(--brand);color:var(--brand);}
.dock-panel{
  pointer-events:auto;
  display:none;
  width:100%;
  max-width:1120px;
  padding:8px;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:rgba(247,245,241,.97);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:0 18px 40px -20px rgba(11,13,16,.35);
}
.dock-panel.is-open{display:block;}
.dock-panel a{
  display:flex;align-items:center;
  min-height:48px;
  padding:0 14px;
  border-radius:12px;
  font-size:15px;font-weight:600;color:var(--steel);
  border-bottom:1px solid var(--line);
}
.dock-panel a:last-child{border-bottom:0;}
.dock-panel a.is-active{color:var(--brand);font-weight:900;}

@media (max-width:1023px){
  .dock-nav{display:none;}
  .dock-toggle{display:inline-flex;}
}
@media (max-width:640px){
  .dock{top:10px;padding:0 12px;}
  .dock-inner{gap:10px;padding:8px 10px;}
  .dock-actions .icon-btn{display:none;}
}
@media (max-width:420px){
  .dock-name{display:none;}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border:1px solid transparent;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:800;
  letter-spacing:-.01em;
  cursor:pointer;
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),background 180ms var(--ease),border-color 180ms var(--ease),color 180ms var(--ease),filter 180ms var(--ease);
}
.btn:active{transform:translateY(0) scale(.98);}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 1px 2px rgba(11,13,16,.06);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 36px -14px rgba(255,74,28,.55);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{background:rgba(255,74,28,.08);border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-onDark{background:transparent;color:#fff;border-color:rgba(255,255,255,.28);}
.btn-onDark:hover{background:rgba(255,255,255,.1);border-color:var(--brand-2);color:var(--brand-2);transform:translateY(-2px);}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;border-radius:999px;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-weight:800;color:var(--brand);font-size:15px;
}
.btn-text span{transition:transform 180ms var(--ease);}
.btn-text:hover span{transform:translateX(4px);}

/* ============ 通用板块 ============ */
.sec{padding:64px 0;}
.sec-sm{padding:56px 0;}
@media (min-width:1024px){
  .sec{padding:96px 0;}
  .sec-sm{padding:64px 0;}
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:800;letter-spacing:.16em;
  color:var(--brand);text-transform:uppercase;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--brand);border-radius:2px;}
.sec-title{
  font-size:clamp(1.5rem,3vw,2.25rem);
  line-height:1.25;
  font-weight:800;
  letter-spacing:-.02em;
  margin-top:12px;
}
.sec-lead{
  margin-top:14px;
  max-width:680px;
  font-size:16px;
  line-height:1.8;
  color:var(--steel);
}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 10px;
  border:1px solid var(--line);
  border-radius:999px;
  background:#fff;
  font-size:12px;font-weight:700;color:var(--steel);
  white-space:nowrap;
}
.badge-lime{background:var(--brand-2);border-color:transparent;color:var(--ink);}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:150px 0 72px;
  color:#fff;
  background-image:linear-gradient(180deg,rgba(11,13,16,.72),rgba(11,13,16,.86)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;height:120px;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.09) 0 1px,transparent 1px 18px);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:1;max-width:820px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;
  border:1px solid rgba(255,255,255,.28);
  border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.08em;
  color:rgba(255,255,255,.9);
}
.hero h1{
  margin-top:20px;
  font-size:clamp(2rem,5vw,3.5rem);
  line-height:1.1;
  font-weight:900;
  letter-spacing:-.02em;
}
.hero-sub{
  margin-top:20px;
  max-width:660px;
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,.82);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;}
.hero-metrics{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px 24px;
  margin-top:44px;
  padding-top:26px;
  border-top:1px solid rgba(255,255,255,.16);
}
@media (min-width:768px){.hero-metrics{grid-template-columns:repeat(4,minmax(0,1fr));}}
.metric-num{
  font-size:clamp(1.5rem,3vw,2rem);
  font-weight:900;
  letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
  color:var(--brand-2);
  line-height:1.1;
}
.metric-label{margin-top:6px;font-size:12px;color:rgba(255,255,255,.62);}

/* ============ 知识体系总览 ============ */
.overview-grid{display:grid;gap:32px;}
@media (min-width:1024px){
  .overview-grid{grid-template-columns:8fr 4fr;gap:48px;align-items:start;}
}
.point-list{margin-top:28px;border-top:1px solid var(--line);}
.point-item{
  display:flex;gap:18px;
  padding:22px 0;
  border-bottom:1px solid var(--line);
}
.point-num{
  flex:0 0 auto;
  font-size:20px;font-weight:900;
  letter-spacing:-.02em;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  width:36px;
}
.point-item h3{font-size:1.125rem;font-weight:700;letter-spacing:-.01em;}
.point-item p{margin-top:6px;font-size:15px;line-height:1.75;color:var(--steel);}
.overview-figure{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:#fff;
  padding:14px;
  box-shadow:0 1px 2px rgba(11,13,16,.06);
}
.overview-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:14px;
}
.overview-figure figcaption{
  margin-top:12px;
  font-size:13px;
  line-height:1.7;
  color:var(--steel);
}

/* ============ 时间轴 ============ */
.tl-wrap{position:relative;margin-top:40px;}
.tl-wrap::before{
  content:"";
  position:absolute;left:13px;top:10px;bottom:10px;
  width:2px;background:var(--line);
  border-radius:2px;
}
.tl-item{position:relative;padding-left:44px;padding-bottom:28px;}
.tl-item:last-child{padding-bottom:0;}
.tl-node{
  position:absolute;left:2px;top:22px;
  width:24px;height:24px;
  display:grid;place-items:center;
  border:2px solid var(--brand);
  border-radius:999px;
  background:var(--paper);
}
.tl-node::after{content:"";width:8px;height:8px;border-radius:999px;background:var(--brand);}
.tl-card{
  padding:22px 22px 24px;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:#fff;
  box-shadow:0 1px 2px rgba(11,13,16,.06);
  transition:transform 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.tl-card:hover{
  transform:translateY(-4px);
  border-color:rgba(255,74,28,.3);
  box-shadow:0 16px 36px -14px rgba(11,13,16,.22);
}
.tl-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.tl-date{font-size:13px;color:var(--steel);font-variant-numeric:tabular-nums;}
.tl-title{margin-top:12px;font-size:1.2rem;font-weight:800;line-height:1.45;letter-spacing:-.01em;}
.tl-desc{margin-top:8px;font-size:15px;line-height:1.8;color:var(--steel);max-width:760px;}
@media (min-width:1024px){
  .tl-wrap::before{left:15px;}
  .tl-item{padding-left:60px;padding-bottom:32px;}
  .tl-node{left:3px;top:24px;}
}

/* ============ 深色标准区 ============ */
.band-dark{
  position:relative;
  background:var(--ink);
  color:#fff;
  overflow:hidden;
}
.band-dark::before{
  content:"";
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.08) 0 1px,transparent 1px 26px);
  opacity:.9;
  pointer-events:none;
}
.band-dark .container{position:relative;z-index:1;}
.band-dark .sec-lead{color:rgba(255,255,255,.72);}
.std-list{margin-top:36px;border-top:1px solid rgba(255,255,255,.14);}
.std-item{
  display:flex;gap:20px;
  padding:24px 0;
  border-bottom:1px solid rgba(255,255,255,.14);
}
.std-num{
  flex:0 0 auto;
  width:52px;
  font-size:26px;font-weight:900;
  letter-spacing:-.02em;
  color:var(--brand-2);
  font-variant-numeric:tabular-nums;
  line-height:1.1;
}
.std-item h3{font-size:1.125rem;font-weight:700;}
.std-item p{margin-top:6px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.72);max-width:760px;}

/* ============ 误区对照 ============ */
.cmp-list{margin-top:36px;border-top:1px solid var(--line);}
.cmp-row{
  display:grid;gap:14px;
  padding:22px 0;
  border-bottom:1px solid var(--line);
}
@media (min-width:900px){
  .cmp-row{grid-template-columns:1fr 1fr;gap:32px;align-items:start;}
}
.cmp-cell{display:flex;gap:12px;align-items:flex-start;}
.cmp-tag{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  padding:3px 10px;
  border-radius:999px;
  font-size:12px;font-weight:800;
}
.cmp-bad .cmp-tag{background:rgba(230,167,0,.14);color:#9a6f00;}
.cmp-good .cmp-tag{background:rgba(22,163,74,.12);color:#15713c;}
.cmp-cell p{font-size:15px;line-height:1.8;color:var(--steel);}
.cmp-good p{color:var(--ink);font-weight:600;}

/* ============ FAQ ============ */
.faq-wrap{margin-top:32px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;
  min-height:64px;
  padding:18px 4px;
  cursor:pointer;
  list-style:none;
  font-size:16px;
  font-weight:700;
  letter-spacing:-.01em;
  transition:color 180ms var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  font-size:22px;
  font-weight:700;
  color:var(--brand);
  line-height:1;
}
.faq-item[open] summary::after{content:"−";}
.faq-answer{
  padding:0 4px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--steel);
  max-width:820px;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  background:var(--ink);
  color:#fff;
  padding:64px 0;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.07) 0 1px,transparent 1px 22px);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:grid;gap:28px;}
@media (min-width:1024px){
  .cta-band{padding:88px 0;}
  .cta-inner{grid-template-columns:7fr 5fr;align-items:center;gap:56px;}
}
.cta-inner h2{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:900;line-height:1.25;letter-spacing:-.02em;}
.cta-inner p{margin-top:14px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.74);max-width:560px;}
.cta-side{
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-card);
  padding:24px;
}
.cta-side ul{display:grid;gap:14px;}
.cta-side li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.82);}
.cta-dot{flex:0 0 auto;width:6px;height:6px;margin-top:9px;border-radius:999px;background:var(--brand-2);}
.cta-actions{margin-top:26px;}

/* ============ 页脚 ============ */
.footer{background:var(--ink);color:rgba(255,255,255,.78);padding:64px 0 28px;}
.footer-inner{width:100%;}
.footer-grid{display:grid;gap:36px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:48px;}}
.f-logo{display:flex;align-items:center;gap:10px;}
.f-name{font-size:16px;font-weight:900;color:#fff;letter-spacing:-.02em;}
.footer .desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:380px;}
.footer h4{font-size:14px;font-weight:800;color:#fff;letter-spacing:.02em;margin-bottom:16px;}
.footer ul{display:grid;gap:10px;}
.footer ul a{font-size:14px;color:rgba(255,255,255,.7);transition:color 180ms var(--ease);}
.footer ul a:hover{color:var(--brand-2);}
.footer ul.contact li{display:flex;flex-direction:column;gap:2px;font-size:13px;}
.footer ul.contact span{color:rgba(255,255,255,.5);}
.footer ul.contact b{font-weight:600;color:rgba(255,255,255,.86);}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}