/* roulang page: index */
:root{
  --volt:#B8F03C;
  --volt-soft:#EEF8D2;
  --ink:#14171C;
  --orange:#FF6A2B;
  --bg:#F4F6F1;
  --card:#FFFFFF;
  --body:#3C4249;
  --muted:#6E767D;
  --line:#E1E5DA;
  --soft:#F8FAF3;
  --input:#D8DCD2;
  --ok:#2F9E63;
  --warn:#E0483A;
  --r-btn:6px;
  --r-card:14px;
  --r-img:12px;
  --sh-1:0 2px 8px rgba(20,23,28,.06);
  --sh-2:0 10px 24px rgba(20,23,28,.10);
  --side-w:260px;
  --pad:48px;
  --sec:96px;
}
@media (min-width:1440px){ :root{ --side-w:280px; } }
@media (max-width:1023px){ :root{ --pad:28px; --sec:72px; } }
@media (max-width:639px){ :root{ --pad:18px; --sec:56px; } }

*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body{
  margin:0; background:var(--bg); color:var(--body);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px; line-height:1.85; font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
img{ max-width:100%; display:block; height:auto; border:0; }
a{ color:var(--ink); text-decoration:none; }
h1,h2,h3,h4{ margin:0; color:#14171C; font-weight:700; text-wrap:balance; }
p{ margin:0 0 1.2em; }
ul,ol{ margin:0 0 1.2em; padding-left:1.4em; }
button{ font-family:inherit; }
body.nav-open{ overflow:hidden; }

/* ---------- layout ---------- */
.main-wrap{ margin-left:var(--side-w); min-height:100vh; }
.container{ max-width:1200px; margin:0 auto; padding:0 var(--pad); }
.section{ padding:var(--sec) 0; }
.section--tight{ padding-top:0; }
.section--white{ background:#fff; }
.section--dark{ background:var(--ink); color:#C3CAC0; }
.section--dark h2,.section--dark h3,.section--dark h4{ color:#fff; }
.section--dark a{ color:#fff; }

.section__head{ max-width:780px; margin-bottom:36px; }
.section__head--row{ max-width:none; display:flex; align-items:flex-end; justify-content:space-between; gap:24px; flex-wrap:wrap; }
.section__title{ font-size:32px; line-height:1.3; letter-spacing:-.01em; }
.section__sub{ margin:12px 0 0; color:var(--muted); font-size:16px; }
.section--dark .section__sub{ color:#9AA396; }

/* ---------- sidebar nav ---------- */
.sidenav{
  position:fixed; top:0; left:0; bottom:0; width:var(--side-w);
  background:#fff; border-right:1px solid var(--line);
  display:flex; flex-direction:column; padding:26px 18px 22px; z-index:90;
}
.sidenav__top{ display:flex; align-items:center; justify-content:space-between; gap:12px; }
.brand{ display:flex; align-items:baseline; gap:2px; font-size:22px; font-weight:800; letter-spacing:-.02em; color:var(--ink); }
.brand em{ font-style:normal; color:var(--orange); }
.brand span{ font-size:15px; font-weight:700; color:var(--muted); margin-left:6px; letter-spacing:0; }
.brand-desc{ margin:10px 0 22px; font-size:12.5px; line-height:1.7; color:var(--muted); }

.burger{
  display:none; width:42px; height:42px; border:1px solid var(--line); background:#fff;
  border-radius:var(--r-btn); padding:0; align-items:center; justify-content:center; flex-direction:column; gap:4px;
}
.burger span{ display:block; width:18px; height:2px; background:var(--ink); border-radius:2px; transition:.2s; }

.nav{ display:flex; flex-direction:column; flex:1; gap:4px; }
.nav__label{ font-size:12px; letter-spacing:.1em; color:var(--muted); padding:0 12px; margin-bottom:8px; }
.nav__link{
  position:relative; display:flex; align-items:center; gap:10px;
  padding:11px 14px; border-radius:8px; font-size:15px; font-weight:500; color:var(--body);
  transition:background .18s,color .18s,transform .18s;
}
.nav__link i{ font-size:14px; width:18px; text-align:center; color:var(--muted); transition:color .18s; }
.nav__link:hover{ background:#F0F3EA; color:var(--ink); transform:translateX(2px); }
.nav__link:hover i{ color:var(--ink); }
.nav__link.is-active{ background:var(--volt-soft); color:var(--ink); font-weight:700; }
.nav__link.is-active i{ color:#5C7A12; }
.nav__link.is-active::before{ content:""; position:absolute; left:0; top:9px; bottom:9px; width:4px; border-radius:0 3px 3px 0; background:var(--volt); }

.nav__foot{ margin-top:auto; padding-top:20px; border-top:1px solid var(--line); }
.nav__contact{ margin-top:14px; font-size:12.5px; line-height:1.8; color:var(--muted); }
.nav__contact b{ display:block; color:var(--ink); font-size:13px; }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  border-radius:var(--r-btn); padding:14px 28px; font-size:15px; font-weight:700;
  border:2px solid transparent; cursor:pointer; transition:background .2s,color .2s,border-color .2s,transform .16s,box-shadow .2s;
  line-height:1.2;
}
.btn--primary{ background:var(--volt); color:var(--ink); }
.btn--primary:hover{ background:var(--ink); color:var(--volt); transform:translateY(-2px); }
.btn--primary:active{ transform:translateY(0); }
.btn--ghost{ background:transparent; border-color:var(--ink); color:var(--ink); }
.btn--ghost:hover{ background:var(--ink); color:#fff; transform:translateY(-2px); }
.btn--ghost:active{ transform:translateY(0); }
.btn--block{ width:100%; }
.btn--sm{ padding:10px 20px; font-size:14px; }
.section--dark .btn--primary{ background:var(--volt); color:var(--ink); }
.section--dark .btn--primary:hover{ background:#fff; color:var(--ink); }
.btn:focus-visible{ outline:2px solid var(--volt); outline-offset:2px; }

.link{ font-size:14.5px; font-weight:600; text-decoration:underline; text-underline-offset:4px; text-decoration-thickness:1px; }
.link:hover{ background:var(--volt); color:var(--ink); text-decoration-color:transparent; }
.link--light{ color:#fff; }
.link--light:hover{ background:var(--volt); color:var(--ink); }

.tag{ display:inline-block; background:var(--volt-soft); color:#3F5210; font-size:12px; font-weight:700; letter-spacing:.06em; padding:4px 11px; border-radius:6px; }
.badge{ display:inline-block; background:var(--volt-soft); color:#3F5210; font-size:12px; font-weight:600; letter-spacing:.06em; padding:3px 10px; border-radius:6px; }

/* ---------- hero ---------- */
.hero{ position:relative; padding:76px 0 var(--sec); overflow:hidden; }
.hero::before{
  content:""; position:absolute; right:-160px; top:-120px; width:520px; height:520px;
  border:2px solid rgba(184,240,60,.35); border-radius:50%; pointer-events:none;
}
.hero::after{
  content:""; position:absolute; left:0; top:118px; width:120px; height:8px;
  background-image:repeating-linear-gradient(90deg,var(--line) 0 2px,transparent 2px 12px); pointer-events:none;
}
.hero .container{ position:relative; z-index:2; }
.hero__grid{ display:flex; flex-wrap:wrap; align-items:center; gap:48px; }
.hero__col-a{ flex:1 1 460px; min-width:0; }
.hero__col-b{ flex:1 1 340px; min-width:0; }
.eyebrow{ display:inline-flex; align-items:center; gap:10px; font-size:13px; font-weight:700; letter-spacing:.08em; color:#5C7A12; background:var(--volt-soft); padding:6px 14px; border-radius:6px; margin-bottom:22px; }
.hero__title{ font-size:52px; line-height:1.14; font-weight:800; letter-spacing:-.02em; }
.hero__sub{ margin:20px 0 0; font-size:17px; line-height:1.75; color:var(--muted); max-width:560px; }
.hero__actions{ display:flex; flex-wrap:wrap; gap:14px; margin-top:32px; }

.stats{ display:flex; flex-wrap:wrap; margin-top:40px; padding-top:24px; border-top:1px solid var(--line); }
.stat{ flex:1 1 0; min-width:118px; padding:0 18px; border-left:1px solid var(--line); }
.stat:first-child{ border-left:0; padding-left:0; }
.stat__num{ display:block; font-size:26px; font-weight:800; color:var(--ink); line-height:1.25; letter-spacing:-.01em; }
.stat__num i{ font-style:normal; font-size:14px; font-weight:700; color:var(--muted); margin-left:2px; }
.stat__label{ display:block; font-size:13px; color:var(--muted); line-height:1.55; }

.hero__media{ position:relative; max-width:460px; margin-left:auto; }
.hero__media img{ width:100%; aspect-ratio:4/5; object-fit:cover; border-radius:var(--r-img); box-shadow:var(--sh-2); }
.hero__media::before{
  content:""; position:absolute; left:-16px; top:-16px; width:96px; height:96px;
  background:var(--volt); clip-path:polygon(0 0,100% 0,0 100%);
}
.hero__media::after{
  content:""; position:absolute; right:-14px; bottom:-14px; width:150px; height:150px;
  border:8px solid rgba(20,23,28,.9); clip-path:polygon(100% 0,100% 100%,0 100%); opacity:.12;
}

/* ---------- lanes ---------- */
.lanes{ display:flex; flex-wrap:wrap; gap:20px; }
.lane{
  display:flex; align-items:flex-start; gap:22px; flex:0 0 calc(60% - 10px);
  background:#fff; border:1px solid var(--line); border-radius:var(--r-card);
  padding:26px 28px; box-shadow:var(--sh-1);
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.lane:nth-child(even){ flex:0 0 calc(40% - 10px); background:var(--soft); }
.lane:hover{ transform:translateY(-3px); box-shadow:var(--sh-2); border-color:#CFD6C3; }
.lane__num{
  flex:0 0 auto; font-size:30px; font-weight:800; line-height:1; letter-spacing:-.02em;
  color:var(--volt); -webkit-text-stroke:1.4px var(--ink);
}
.lane__body{ flex:1 1 auto; min-width:0; }
.lane__body h3{ font-size:19px; font-weight:600; line-height:1.45; }
.lane__body p{ margin:10px 0 0; font-size:14.5px; line-height:1.75; color:var(--muted); }
.lane__more{ flex:0 0 auto; align-self:center; font-size:14px; font-weight:600; color:var(--muted); white-space:nowrap; transition:color .2s,transform .2s; }
.lane:hover .lane__more{ color:var(--ink); transform:translateX(3px); }

/* ---------- scenes ---------- */
.scene{ display:flex; flex-wrap:wrap; align-items:center; gap:0; padding:30px 0; border-top:1px dashed var(--line); }
.scene:first-of-type{ border-top:0; padding-top:0; }
.scene__media{ flex:1 1 46%; min-width:0; padding-right:40px; }
.scene--reverse .scene__media{ order:2; padding-right:0; padding-left:40px; }
.scene__text{ flex:1 1 46%; min-width:0; }
.scene__media img{ width:100%; aspect-ratio:16/10; object-fit:cover; border-radius:var(--r-img); }
.scene__media{ position:relative; }
.scene__media::after{ content:""; display:block; height:3px; width:88px; background:var(--volt); margin-top:0; border-radius:2px; }
.scene__text h3{ font-size:22px; line-height:1.45; margin:14px 0 0; }
.scene__text p{ margin:14px 0 18px; font-size:15px; line-height:1.8; color:var(--muted); }

/* ---------- cases ---------- */
.case-main{ background:#1C2027; border:1px solid #2B3039; border-radius:var(--r-card); padding:36px; }
.case-main__top{ display:flex; flex-wrap:wrap; align-items:center; gap:14px; margin-bottom:18px; }
.case-main__name{ font-size:20px; font-weight:700; color:#fff; }
.case-main p{ margin:0 0 26px; font-size:15px; line-height:1.8; color:#A6AEA1; max-width:760px; }
.case-nums{ display:flex; flex-wrap:wrap; gap:40px; padding-top:22px; border-top:1px solid #2B3039; }
.case-num b{ display:block; font-size:28px; font-weight:800; color:var(--volt); line-height:1.25; }
.case-num span{ display:block; font-size:13px; color:#8C9489; }
.case-strip{ margin-top:28px; border-top:1px solid #2B3039; }
.case-row{ display:flex; align-items:center; gap:20px; padding:18px 2px; border-bottom:1px solid #2B3039; transition:background .2s; }
.case-row:hover{ background:#1C2027; }
.case-row__name{ flex:0 0 172px; font-weight:700; color:#fff; font-size:15px; }
.case-row__txt{ flex:1 1 auto; min-width:0; font-size:14px; color:#A6AEA1; line-height:1.7; }
.case-row__go{ flex:0 0 auto; color:var(--volt); font-size:14px; }

/* ---------- plans ---------- */
.plans{ display:flex; flex-wrap:wrap; align-items:flex-start; gap:24px; margin-top:48px; }
.plan{
  flex:1 1 0; min-width:250px; background:var(--soft); border:1px solid var(--line);
  border-radius:var(--r-card); padding:32px 28px;
}
.plan--featured{
  background:#fff; border:2px solid var(--volt); box-shadow:var(--sh-2);
  margin-top:-16px; padding:40px 28px; position:relative;
}
.plan__badge{
  position:absolute; top:-14px; left:28px; background:var(--orange); color:#fff;
  font-size:12px; font-weight:700; letter-spacing:.06em; padding:3px 12px; border-radius:6px;
}
.plan__name{ font-size:18px; font-weight:700; }
.plan__note{ font-size:13px; color:var(--muted); margin:6px 0 18px; }
.plan__price{ display:flex; align-items:baseline; gap:4px; padding-bottom:20px; border-bottom:1px solid var(--line); }
.plan__num{ font-size:36px; font-weight:800; color:var(--ink); line-height:1; letter-spacing:-.02em; }
.plan__unit{ font-size:13px; color:var(--muted); font-weight:600; }
.plan__list{ list-style:none; margin:22px 0 26px; padding:0; }
.plan__list li{ position:relative; padding-left:24px; font-size:14px; line-height:1.7; margin-bottom:11px; color:var(--body); }
.plan__list li::before{
  content:""; position:absolute; left:0; top:.48em; width:13px; height:7px;
  border-left:2.5px solid var(--volt); border-bottom:2.5px solid var(--volt); transform:rotate(-45deg);
}

/* ---------- posts ---------- */
.posts-grid{ display:flex; flex-wrap:wrap; margin:0 -12px; }
.posts-grid > .cell{ padding:0 12px; margin-bottom:24px; }
.post{
  display:flex; flex-direction:column; height:100%; background:#fff;
  border:1px solid var(--line); border-radius:var(--r-card); overflow:hidden;
  box-shadow:var(--sh-1); transition:transform .2s,box-shadow .2s;
}
.post:hover{ transform:translateY(-3px); box-shadow:var(--sh-2); }
.post__cover{ aspect-ratio:16/9; overflow:hidden; background:#EDF0E7; }
.post__cover img{ width:100%; height:100%; object-fit:cover; transition:transform .4s; }
.post:hover .post__cover img{ transform:scale(1.04); }
.post__body{ display:flex; flex-direction:column; flex:1; padding:20px 22px 22px; }
.post__title{
  font-size:17px; font-weight:600; line-height:1.55; margin:12px 0 8px;
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;
}
.post__desc{
  font-size:14px; line-height:1.7; color:var(--muted); margin:0 0 16px;
  display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden;
}
.post__meta{
  margin-top:auto; padding-top:14px; border-top:1px solid var(--line);
  display:flex; justify-content:space-between; gap:12px; font-size:13px; color:var(--muted);
}
.post__arrow{ color:var(--ink); opacity:.35; transition:opacity .2s,transform .2s; }
.post:hover .post__arrow{ opacity:1; transform:translate(2px,-2px); }

.empty{
  border:1px dashed var(--line); border-radius:var(--r-card); background:#fff;
  padding:56px 24px; text-align:center; color:var(--muted);
}
.empty p{ margin:0 0 20px; font-size:15px; }

/* ---------- faq ---------- */
.faq{ max-width:820px; margin-top:36px; }
.faq__item{
  position:relative; background:#fff; border:1px solid var(--line); border-radius:var(--r-card);
  margin-bottom:14px; overflow:hidden; transition:background .2s,border-color .2s;
}
.faq__item.is-open{ background:var(--soft); border-color:#D3DAC6; }
.faq__item.is-open::before{ content:""; position:absolute; left:0; top:0; bottom:0; width:3px; background:var(--volt); }
.faq__q{
  width:100%; display:flex; align-items:center; gap:16px; text-align:left;
  background:none; border:0; padding:20px 24px; font-size:16px; font-weight:600; color:var(--ink); line-height:1.6;
}
.faq__idx{ flex:0 0 auto; font-size:13px; font-weight:700; color:var(--muted); }
.faq__icon{ margin-left:auto; flex:0 0 auto; position:relative; width:18px; height:18px; }
.faq__icon::before,.faq__icon::after{ content:""; position:absolute; background:var(--ink); border-radius:2px; }
.faq__icon::before{ left:0; top:8px; width:18px; height:2px; }
.faq__icon::after{ left:8px; top:0; width:2px; height:18px; transition:opacity .2s,transform .2s; }
.faq__item.is-open .faq__icon::after{ opacity:0; transform:rotate(90deg); }
.faq__a{ display:none; padding:0 24px 22px 60px; font-size:15px; line-height:1.85; color:var(--muted); }
.faq__item.is-open .faq__a{ display:block; }

/* ---------- cta band ---------- */
.cta-band{ background:var(--ink); color:#fff; position:relative; overflow:hidden; }
.cta-band::after{
  content:""; position:absolute; right:-90px; bottom:-160px; width:420px; height:420px;
  border:2px solid rgba(184,240,60,.28); border-radius:50%; pointer-events:none;
}
.cta-band__inner{ position:relative; z-index:2; display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:32px; padding:64px 0; }
.cta-band h2{ font-size:30px; line-height:1.35; color:#fff; max-width:620px; }
.cta-band p{ margin:14px 0 0; color:#9AA396; font-size:15px; max-width:560px; }
.cta-band__actions{ display:flex; flex-wrap:wrap; gap:14px; }
.btn--outline-light{ background:transparent; border-color:#fff; color:#fff; }
.btn--outline-light:hover{ background:#fff; color:var(--ink); transform:translateY(-2px); }

/* ---------- footer ---------- */
.site-footer{ background:#fff; border-top:1px solid var(--line); padding:56px 0 28px; font-size:14px; color:var(--muted); }
.footer-grid{ display:flex; flex-wrap:wrap; gap:40px; justify-content:space-between; }
.footer-brand{ flex:1 1 320px; min-width:0; max-width:420px; }
.footer-brand .brand{ font-size:20px; }
.footer-brand p{ margin:16px 0 0; line-height:1.8; font-size:13.5px; }
.footer-nav{ flex:0 1 auto; }
.footer-nav h4{ font-size:14px; font-weight:700; color:var(--ink); margin-bottom:16px; }
.footer-nav ul{ list-style:none; margin:0; padding:0; }
.footer-nav li{ margin-bottom:10px; }
.footer-nav a{ font-size:13.5px; color:var(--muted); transition:color .2s; }
.footer-nav a:hover{ color:var(--ink); }
.footer-bottom{
  margin-top:40px; padding-top:22px; border-top:1px solid var(--line);
  display:flex; flex-wrap:wrap; gap:12px; justify-content:space-between; font-size:13px;
}
.footer-bottom a{ color:var(--muted); }
.footer-bottom a:hover{ color:var(--ink); }

/* ---------- responsive ---------- */
@media (max-width:1439px) and (min-width:1024px){
  .hero__title{ font-size:46px; }
}
@media (max-width:1023px){
  .main-wrap{ margin-left:0; padding-top:64px; }
  .sidenav{
    left:0; right:0; bottom:auto; top:0; width:auto; height:64px;
    flex-direction:row; align-items:center; padding:0 20px;
    border-right:0; border-bottom:1px solid var(--line);
  }
  .sidenav__top{ width:100%; }
  .brand-desc{ display:none; }
  .burger{ display:flex; }
  .nav{
    position:fixed; top:64px; left:0; right:0; bottom:0; background:#fff;
    padding:16px 20px 40px; overflow-y:auto; display:none; flex-direction:column; gap:0;
    border-top:1px solid var(--line);
  }
  .nav.is-open{ display:flex; }
  .nav__label{ display:none; }
  .nav__link{ height:56px; font-size:17px; padding:0 14px; border-bottom:1px solid var(--line); border-radius:0; }
  .nav__link:hover{ transform:none; }
  .nav__link.is-active{ background:var(--volt-soft); }
  .nav__link.is-active::before{ top:14px; bottom:14px; }
  .nav__foot{ margin-top:24px; border-top:0; }
  .hero{ padding-top:48px; }
  .hero__title{ font-size:36px; }
  .hero__sub{ font-size:16px; }
  .hero__grid{ gap:36px; }
  .hero__media{ max-width:none; margin:0; }
  .hero::before{ display:none; }
  .lane,.lane:nth-child(even){ flex:0 0 100%; }
  .plan--featured{ margin-top:0; padding:32px 28px; }
  .cta-band__inner{ padding:56px 0; }
}
@media (max-width:767px){
  .section__title{ font-size:27px; }
  .scene__media{ flex:0 0 100%; padding:0 0 24px; }
  .scene--reverse .scene__media{ order:0; padding:0 0 24px; }
  .scene__text{ flex:0 0 100%; }
  .case-main{ padding:26px 22px; }
  .case-nums{ gap:26px; }
  .case-row{ flex-wrap:wrap; gap:8px; }
  .case-row__name{ flex:0 0 100%; }
  .faq__a{ padding-left:24px; }
}
@media (max-width:639px){
  .hero__title{ font-size:31px; }
  .hero__sub{ font-size:15px; }
  .hero__actions .btn{ width:100%; }
  .stats .stat{ flex:0 0 50%; padding:0 12px; margin-bottom:16px; border-left:0; }
  .stats .stat:nth-child(odd){ padding-left:0; border-right:1px solid var(--line); }
  .lane{ padding:20px; gap:16px; }
  .lane__num{ font-size:24px; }
  .lane__more{ display:none; }
  .post__body{ padding:18px; }
  .plan{ padding:26px 20px; }
  .cta-band h2{ font-size:24px; }
  .cta-band__actions{ width:100%; }
  .cta-band__actions .btn{ width:100%; }
  .footer-grid{ gap:28px; }
}

/* roulang page: article */
:root{
  --volt:#B8F03C;
  --volt-soft:#EEF8D2;
  --volt-deep:#8FC520;
  --ink:#14171C;
  --ink-2:#232830;
  --body:#3C4249;
  --muted:#6E767D;
  --line:#E1E5DA;
  --line-strong:#CBD2C2;
  --bg:#F4F6F1;
  --alt:#F8FAF3;
  --white:#FFFFFF;
  --orange:#FF6A2B;
  --ok:#2F9E63;
  --warn:#E0483A;
  --input:#D8DCD2;
  --r-xs:4px;
  --r-sm:6px;
  --r-md:12px;
  --r-lg:14px;
  --sh-1:0 2px 8px rgba(20,23,28,.06);
  --sh-2:0 10px 24px rgba(20,23,28,.10);
  --side-w:260px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --mono:"SF Mono",ui-monospace,"JetBrains Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;background:var(--bg);color:var(--body);
  font-family:var(--font);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
a{color:var(--ink);text-decoration:none;transition:color .2s ease,background-color .2s ease}
a:hover{color:var(--ink)}
img{max-width:100%;display:block;border-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.3;text-wrap:balance}
p{margin:0}
ul,ol{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--volt);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 48px}
.num{font-variant-numeric:tabular-nums;font-family:var(--mono)}

/* ---------- 侧栏 / 顶部导航 ---------- */
.topbar{
  display:none;position:sticky;top:0;z-index:80;
  align-items:center;justify-content:space-between;gap:16px;
  padding:14px 20px;background:var(--white);border-bottom:1px solid var(--line);box-shadow:var(--sh-1);
}
.topbar .brand{font-size:19px}
.topbar__toggle{
  width:44px;height:44px;border-radius:var(--r-sm);border:2px solid var(--ink);
  background:transparent;color:var(--ink);font-size:17px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:background .2s ease,color .2s ease,transform .2s ease;
}
.topbar__toggle:hover{background:var(--ink);color:var(--volt)}
.topbar__toggle:active{transform:translateY(1px)}
.side-overlay{
  display:none;position:fixed;inset:0;background:rgba(20,23,28,.5);z-index:90;
}
.side{
  position:fixed;top:0;left:0;width:var(--side-w);height:100vh;z-index:100;
  background:var(--white);border-right:1px solid var(--line);
  display:flex;flex-direction:column;gap:0;padding:26px 20px 22px;overflow-y:auto;
}
.brand{
  display:inline-block;font-size:21px;font-weight:800;letter-spacing:-.02em;color:var(--ink);line-height:1.2;
}
.brand em{font-style:normal;color:var(--volt-deep)}
.brand:hover{color:var(--ink)}
.side__tag{
  margin-top:8px;font-size:12.5px;color:var(--muted);line-height:1.6;
}
.side__rule{height:1px;background:var(--line);margin:20px 0 6px}
.nav{display:flex;flex-direction:column;gap:4px;margin-top:8px}
.nav__label{font-size:12px;letter-spacing:.06em;color:var(--muted);margin:0 0 8px 12px}
.nav__link{
  display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:8px;
  font-size:15px;font-weight:600;color:var(--ink);border-left:4px solid transparent;
  transition:background .2s ease,transform .2s ease,border-color .2s ease;
}
.nav__link i{width:18px;text-align:center;color:var(--muted);font-size:14px;transition:color .2s ease}
.nav__link:hover{background:#F0F3EA;transform:translateX(2px)}
.nav__link:hover i{color:var(--ink)}
.nav__link.is-active{background:var(--volt-soft);border-left-color:var(--volt);font-weight:700}
.nav__link.is-active i{color:var(--ink)}
.nav__foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--line)}
.nav__contact{margin-top:14px;font-size:12.5px;color:var(--muted);line-height:1.7}
.nav__contact b{display:block;color:var(--ink);font-size:13px;margin-bottom:4px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-sm);font-size:15px;font-weight:700;
  border:2px solid transparent;cursor:pointer;line-height:1.2;
  transition:background-color .22s ease,color .22s ease,transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.btn--primary{background:var(--volt);color:var(--ink);border-color:var(--volt)}
.btn--primary:hover{background:var(--ink);color:var(--volt);border-color:var(--ink);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn--primary:active{transform:translateY(0)}
.btn--outline{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn--outline:hover{background:var(--ink);color:var(--white);transform:translateY(-2px)}
.btn--outline:active{transform:translateY(0)}
.btn--ghost-light{background:transparent;color:var(--white);border-color:rgba(255,255,255,.7)}
.btn--ghost-light:hover{background:var(--white);color:var(--ink);border-color:var(--white);transform:translateY(-2px)}
.btn--sm{padding:11px 18px;font-size:14px}
.btn--block{width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed}

/* ---------- 布局 ---------- */
.content{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column}
.main{flex:1 1 auto}
.sec{padding:72px 0}
.sec--tight{padding:48px 0}
.sec-head{margin-bottom:28px}
.sec-head h2{font-size:32px;font-weight:700}
.sec-head p{margin-top:10px;color:var(--muted);font-size:15px;max-width:720px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.06em;
  color:var(--ink);background:var(--volt-soft);border-radius:var(--r-xs);padding:5px 10px;margin-bottom:14px;
}
.eyebrow::before{content:"";width:6px;height:6px;background:var(--volt-deep);border-radius:50%}

/* ---------- 快讯条 ---------- */
.flashbar{background:var(--ink);color:#C9D1C2;font-size:13.5px}
.flashbar__in{display:flex;flex-wrap:wrap;gap:10px 34px;align-items:center;padding:11px 0}
.flashbar__item{display:flex;align-items:center;gap:9px;line-height:1.5}
.flashbar__item::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--volt);flex:0 0 auto}
.flashbar__item b{color:#fff;font-weight:600}

/* ---------- 文章头 ---------- */
.post-hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;padding:42px 0 44px}
.post-hero__bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.34;
}
.post-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(20,23,28,.94) 0%,rgba(20,23,28,.78) 58%,rgba(20,23,28,.52) 100%);
}
.post-hero .container{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:14px;color:#A7B0A0;margin-bottom:20px}
.crumbs a{color:#C9D1C2;border-bottom:1px solid rgba(201,209,194,.4);padding-bottom:1px}
.crumbs a:hover{color:var(--volt);border-bottom-color:var(--volt)}
.crumbs span{color:#6E767D}
.crumbs b{color:#fff;font-weight:700}
.post-hero h1{
  color:#fff;font-size:clamp(30px,3.6vw,46px);font-weight:800;letter-spacing:-.02em;line-height:1.18;max-width:900px;
}
.post-hero h1::after{
  content:"";display:block;width:72px;height:4px;background:var(--volt);margin-top:20px;border-radius:2px;
}
.post-meta{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:24px;font-size:13.5px;color:#B7BFB0}
.post-meta span{display:inline-flex;align-items:center;gap:7px}
.post-meta i{color:var(--volt);font-size:13px}

/* ---------- 文章主体 ---------- */
.post-wrap{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start;padding-top:56px}
.post-figure{margin:0 0 36px}
.post-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-md);box-shadow:var(--sh-1)}
.post-figure figcaption{margin-top:12px;font-size:13px;color:var(--muted)}
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--body)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  font-size:27px;font-weight:700;color:var(--ink);margin:48px 0 16px;
  padding-left:14px;border-left:4px solid var(--volt);line-height:1.35;
}
.article-body h3{font-size:20px;font-weight:600;color:var(--ink);margin:34px 0 12px}
.article-body h4{font-size:16px;font-weight:600;color:var(--ink);margin:24px 0 10px}
.article-body a{color:var(--ink);text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--volt-deep)}
.article-body a:hover{background:var(--volt)}
.article-body ul{list-style:none;padding-left:0;margin:0 0 1.2em}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:8px}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.72em;width:8px;height:8px;background:var(--volt);border-radius:1px}
.article-body ol{list-style:none;counter-reset:cmsol;padding-left:0;margin:0 0 1.2em}
.article-body ol li{position:relative;padding-left:38px;margin-bottom:10px;counter-increment:cmsol}
.article-body ol li::before{
  content:counter(cmsol,decimal-leading-zero);position:absolute;left:0;top:.22em;
  font-family:var(--mono);font-size:13px;font-weight:700;color:var(--ink);
  background:var(--volt-soft);border-radius:var(--r-xs);padding:1px 7px;
}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:var(--alt);border-left:4px solid var(--volt);
  border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--ink);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:26px 0}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 13px;text-align:left}
.article-body th{background:var(--alt);color:var(--ink);font-weight:600}
.article-body code{background:var(--alt);border:1px solid var(--line);border-radius:var(--r-xs);padding:2px 6px;font-family:var(--mono);font-size:14px}
.article-body pre{background:var(--ink);color:#E6ECE0;padding:18px 20px;border-radius:var(--r-md);overflow:auto;font-family:var(--mono);font-size:14px;line-height:1.7}
.article-body pre code{background:none;border:0;color:inherit;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

/* ---------- 文末操作 ---------- */
.post-foot{
  display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;
  margin-top:44px;padding-top:26px;border-top:1px solid var(--line);
}
.post-foot__btns{display:flex;flex-wrap:wrap;gap:12px}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.04em;
  padding:6px 12px;border-radius:var(--r-xs);background:var(--volt-soft);color:var(--ink);
  border:1px solid rgba(184,240,60,.7);
}
.tag:hover{background:var(--volt)}
.tag--gray{background:var(--alt);border-color:var(--line)}

/* ---------- 侧栏信息卡 ---------- */
.post-aside{position:sticky;top:24px;display:flex;flex-direction:column;gap:18px}
.aside-card{background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1)}
.aside-card h3{font-size:16px;font-weight:700;margin-bottom:14px}
.aside-card p{font-size:14px;color:var(--muted);line-height:1.75}
.aside-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:12px}
.aside-list li{display:flex;gap:12px;font-size:14px;color:var(--body);line-height:1.7}
.aside-list i{color:var(--volt-deep);margin-top:5px;font-size:13px}
.aside-facts{display:flex;flex-direction:column;gap:12px;margin:4px 0 18px}
.aside-facts div{display:flex;justify-content:space-between;gap:10px;font-size:13.5px;padding-bottom:11px;border-bottom:1px dashed var(--line)}
.aside-facts div:last-child{border-bottom:0;padding-bottom:0}
.aside-facts b{color:var(--ink);font-family:var(--mono);font-variant-numeric:tabular-nums;font-weight:700}
.aside-card--dark{background:var(--ink);border-color:var(--ink);color:#C9D1C2}
.aside-card--dark h3{color:#fff}
.aside-card--dark p{color:#A7B0A0}

/* ---------- 相关推荐 ---------- */
.rel-list{display:flex;flex-direction:column;gap:16px}
.rel-card{
  display:grid;grid-template-columns:180px minmax(0,1fr);gap:20px;align-items:center;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:16px;box-shadow:var(--sh-1);transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.rel-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:var(--line-strong)}
.rel-card__img{border-radius:var(--r-md);overflow:hidden;background:var(--alt)}
.rel-card__img img{width:100%;aspect-ratio:16/10;object-fit:cover}
.rel-card__body h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:8px}
.rel-card__body p{font-size:14px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card__meta{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:12px;padding-top:11px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted)}
.rel-card__meta b{color:var(--ink);font-weight:600;font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- FAQ ---------- */
.faq{max-width:820px}
.faq__item{
  background:var(--white);border:1px solid var(--line);border-left:3px solid transparent;
  border-radius:var(--r-md);margin-bottom:12px;transition:border-color .2s ease,background-color .2s ease;
}
.faq__item[open]{border-left-color:var(--volt);background:var(--alt)}
.faq__q{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:14px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq__q::-webkit-details-marker{display:none}
.faq__num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:13px;color:var(--muted);font-weight:700;padding-top:4px}
.faq__ico{margin-left:auto;flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:var(--volt-soft);color:var(--ink);font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;transition:background .2s ease}
.faq__q::after{content:"+";margin-left:14px;flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:var(--volt-soft);color:var(--ink);font-size:15px;font-weight:700;display:flex;align-items:center;justify-content:center}
.faq__item[open] .faq__q::after{content:"−";background:var(--volt)}
.faq__a{padding:0 22px 20px 58px;font-size:15px;color:var(--body);line-height:1.85}

/* ---------- CTA ---------- */
.cta{position:relative;background:var(--ink);color:#fff;overflow:hidden;margin-top:24px}
.cta::before{
  content:"";position:absolute;left:-14%;bottom:-190px;width:640px;height:640px;border-radius:50%;
  border:2px solid rgba(184,240,60,.22);pointer-events:none;
}
.cta::after{
  content:"";position:absolute;right:-10%;top:-160px;width:420px;height:420px;border-radius:50%;
  border:2px solid rgba(255,255,255,.10);pointer-events:none;
}
.cta__in{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;padding:64px 0}
.cta__in h2{color:#fff;font-size:30px;font-weight:700;margin-bottom:12px}
.cta__in p{color:#B7BFB0;font-size:15px;max-width:620px}
.cta__btns{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#A7B0A0;margin-top:0;border-top:4px solid var(--volt)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:44px;padding:60px 0 40px}
.footer-brand .brand{font-size:22px;color:#fff}
.footer-brand .brand em{color:var(--volt)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;max-width:420px}
.footer-nav h4{font-size:14px;color:#fff;font-weight:700;margin-bottom:16px;letter-spacing:.04em}
.footer-nav ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:11px}
.footer-nav a{color:#A7B0A0;font-size:14px}
.footer-nav a:hover{color:var(--volt)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:#7C857B;
}
.footer-bottom a{color:#A7B0A0;border-bottom:1px dashed rgba(167,176,160,.5)}
.footer-bottom a:hover{color:var(--volt)}

/* ---------- 空态 ---------- */
.empty{
  border:1px dashed var(--line-strong);background:var(--alt);border-radius:var(--r-lg);
  padding:60px 28px;text-align:center;
}
.empty i{font-size:30px;color:var(--muted);margin-bottom:16px;display:block}
.empty h3{font-size:20px;font-weight:700;margin-bottom:10px}
.empty p{font-size:15px;color:var(--muted);margin-bottom:22px}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1439px){
  :root{--side-w:240px}
  .post-wrap{grid-template-columns:minmax(0,1fr) 270px;gap:40px}
}
@media screen and (max-width:1023px){
  .topbar{display:flex}
  .side{
    width:290px;transform:translateX(-102%);transition:transform .3s ease;
    box-shadow:0 20px 50px rgba(20,23,28,.25);
  }
  body.nav-open .side{transform:translateX(0)}
  body.nav-open .side-overlay{display:block}
  body.nav-open{overflow:hidden}
  .content{margin-left:0}
  .container{padding:0 24px}
  .sec{padding:72px 0}
  .post-wrap{grid-template-columns:minmax(0,1fr);gap:44px;padding-top:44px}
  .post-aside{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;padding:48px 0 32px}
  .footer-brand{grid-column:1/-1}
}
@media screen and (max-width:639px){
  .container{padding:0 18px}
  .sec{padding:56px 0}
  .post-hero{padding:32px 0 34px}
  .post-hero h1{font-size:30px}
  .post-hero h1::after{margin-top:16px;width:56px}
  .sec-head h2{font-size:25px}
  .article-body{font-size:16px}
  .article-body h2{font-size:22px;margin-top:38px}
  .article-body h3{font-size:18px}
  .rel-card{grid-template-columns:1fr;gap:14px;padding:14px}
  .rel-card__img img{aspect-ratio:16/9}
  .post-foot{flex-direction:column;align-items:flex-start}
  .post-foot__btns{width:100%}
  .post-foot__btns .btn{flex:1 1 auto;padding:13px 18px}
  .cta__in{padding:52px 0}
  .cta__in h2{font-size:24px}
  .cta__btns{width:100%}
  .cta__btns .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .aside-card{padding:20px}
  .faq__a{padding-left:22px}
  .flashbar__in{gap:8px 20px;font-size:12.5px}
}

/* roulang page: category1 */
:root{
  --lime:#B8F03C;
  --lime-dark:#9FD42B;
  --lime-soft:#EEF8D2;
  --ink:#14171C;
  --orange:#FF6A2B;
  --bg:#F4F6F1;
  --card:#FFFFFF;
  --soft:#F8FAF3;
  --text:#14171C;
  --body-text:#3C4249;
  --muted:#6E767D;
  --line:#E1E5DA;
  --input-line:#D8DCD2;
  --ok:#2F9E63;
  --warn:#E0483A;
  --r-btn:6px;
  --r-card:14px;
  --r-img:12px;
  --sh-1:0 2px 8px rgba(20,23,28,.06);
  --sh-2:0 10px 24px rgba(20,23,28,.10);
  --side-w:260px;
  --pad:48px;
  --sec:104px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--body-text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .2s ease,background-color .2s ease}
a:hover{color:var(--ink)}
button{font-family:inherit;cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--pad)}
.section{padding:var(--sec) 0}
.section--tight{padding:calc(var(--sec) - 28px) 0}
.section--soft{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---------- 左侧导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--side-w);
  display:flex;flex-direction:column;
  padding:26px 18px 22px;background:#fff;
  border-right:1px solid var(--line);overflow-y:auto;z-index:70;
}
.brand{
  display:inline-flex;align-items:baseline;gap:2px;
  font-size:21px;font-weight:800;letter-spacing:-.02em;color:var(--ink);
  padding:4px 8px 4px 10px;border-left:4px solid var(--lime);margin-bottom:24px;
}
.brand em{font-style:normal;font-size:15px;font-weight:600;color:var(--muted)}
.brand:hover{background:var(--lime-soft)}
.nav{display:flex;flex-direction:column;gap:4px;flex:1}
.nav__label{
  font-size:12px;letter-spacing:.06em;color:var(--muted);
  padding:0 10px 8px;border-bottom:1px solid var(--line);margin-bottom:8px;
}
.nav__link{
  display:flex;align-items:center;gap:10px;
  padding:11px 12px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;color:var(--body-text);
  border-left:4px solid transparent;transition:all .18s ease;
}
.nav__link i{font-size:14px;color:var(--muted);width:16px;text-align:center}
.nav__link:hover{background:#F0F3EA;color:var(--ink);transform:translateX(2px)}
.nav__link:hover i{color:var(--ink)}
.nav__link.is-active{background:var(--lime-soft);border-left-color:var(--lime);color:var(--ink);font-weight:700}
.nav__link.is-active i{color:var(--ink)}
.nav__foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line)}
.nav__contact{margin-top:14px;font-size:13px;line-height:1.75;color:var(--muted)}
.nav__contact b{display:block;color:var(--ink);font-size:13px;margin-bottom:2px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  align-items:center;justify-content:center;font-size:18px;color:var(--ink);
  border:1px solid var(--line);background:#fff;
}
.nav-toggle:hover{background:var(--lime-soft)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1.2;
  transition:all .2s ease;border:2px solid transparent;white-space:nowrap;
}
.btn--primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn--primary:hover{background:var(--ink);color:var(--lime);border-color:var(--ink);transform:translateY(-2px)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn--ghost:active{transform:translateY(0)}
.btn--light{background:transparent;color:#fff;border-color:#fff}
.btn--light:hover{background:#fff;color:var(--ink);transform:translateY(-2px)}
.btn--sm{padding:10px 16px;font-size:13px}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none}

/* ---------- 分类页头 ---------- */
.page-head{position:relative;overflow:hidden;background:var(--ink)}
.page-head__bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center 35%;
  opacity:.42;filter:saturate(.85);
}
.page-head::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(20,23,28,.92) 0%,rgba(20,23,28,.78) 48%,rgba(20,23,28,.62) 100%);
}
.page-head__inner{position:relative;z-index:2;max-width:1200px;margin:0 auto;padding:84px var(--pad) 76px}
.crumb{font-size:14px;color:rgba(255,255,255,.66);margin-bottom:20px}
.crumb a{color:rgba(255,255,255,.66)}
.crumb a:hover{color:var(--lime)}
.crumb span{margin:0 8px;color:rgba(255,255,255,.4)}
.crumb b{color:#fff;font-weight:600}
.page-head h1{
  font-size:clamp(34px,4.6vw,58px);line-height:1.14;font-weight:800;
  letter-spacing:-.02em;color:#fff;text-wrap:balance;max-width:16em;
}
.page-head h1 mark{background:none;color:var(--lime);padding:0}
.page-head .lead{
  margin-top:22px;max-width:640px;font-size:17px;line-height:1.9;color:rgba(255,255,255,.82);
}
.page-head__tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.22);
}
.tag--lime{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.ruler{
  position:absolute;right:var(--pad);top:96px;z-index:3;
  width:120px;height:34px;opacity:.55;
  background-image:repeating-linear-gradient(90deg,var(--lime) 0 1px,transparent 1px 12px);
  background-size:12px 12px;background-repeat:repeat-x;
  border-bottom:1px solid var(--lime);
}
@media(max-width:1023px){.ruler{display:none}}

/* ---------- 排版 ---------- */
.sec-head{max-width:760px;margin-bottom:40px}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.06em;font-weight:700;color:var(--ink);
  background:var(--lime-soft);padding:6px 12px;border-radius:var(--r-btn);margin-bottom:16px;
}
.sec-kicker::before{content:"";width:14px;height:2px;background:var(--lime-dark)}
h2{font-size:clamp(26px,3vw,33px);line-height:1.28;font-weight:700;color:var(--ink);letter-spacing:-.01em;text-wrap:balance}
.sec-sub{margin-top:16px;font-size:16px;color:var(--muted);max-width:42em}
h3{font-size:19px;font-weight:600;color:var(--ink);line-height:1.45}
h4{font-size:16px;font-weight:600;color:var(--ink)}

/* ---------- 概述 ---------- */
.intro-grid{display:grid;grid-template-columns:1.25fr .95fr;gap:56px;align-items:start}
.intro-copy p{font-size:16.5px;line-height:1.9;margin-bottom:1.2em}
.intro-copy p:last-child{margin-bottom:0}
.metrics{
  display:grid;grid-template-columns:repeat(2,1fr);
  gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
}
.metric{background:#fff;padding:26px 22px}
.metric b{display:block;font-size:34px;font-weight:800;color:var(--ink);letter-spacing:-.02em;line-height:1.1}
.metric b i{font-style:normal;font-size:15px;font-weight:700;color:var(--muted);margin-left:4px}
.metric span{display:block;margin-top:8px;font-size:13.5px;color:var(--muted)}
.metric--accent{background:var(--ink)}
.metric--accent b{color:var(--lime)}
.metric--accent span{color:rgba(255,255,255,.6)}

/* ---------- 图文交替流 ---------- */
.flow-list{display:flex;flex-direction:column;gap:72px}
.flow-item{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.flow-item.is-reverse .flow-media{order:2}
.flow-media{position:relative}
.flow-media img{border-radius:var(--r-img);box-shadow:var(--sh-1);aspect-ratio:4/3;object-fit:cover;width:100%}
.flow-media::after{
  content:"";position:absolute;left:0;bottom:-10px;width:96px;height:3px;background:var(--lime);
}
.flow-no{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--ink);background:var(--lime-soft);padding:4px 10px;border-radius:var(--r-btn);margin-bottom:14px;
}
.flow-body p{margin-top:14px;font-size:16px;line-height:1.9}
.tick-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.tick-list li{position:relative;padding-left:26px;font-size:15px;color:var(--body-text)}
.tick-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:12px;height:12px;border-radius:3px;
  background:var(--lime);
}

/* ---------- 错落条块 ---------- */
.strips{display:flex;flex-wrap:wrap;gap:20px}
.strip{
  width:calc(58% - 10px);
  display:flex;gap:22px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 28px;box-shadow:var(--sh-1);transition:all .22s ease;
}
.strip:nth-child(even){width:calc(42% - 10px);background:var(--soft)}
.strip:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--ink)}
.strip__no{font-size:26px;font-weight:800;color:var(--ink);opacity:.22;letter-spacing:-.03em;line-height:1}
.strip__body h3{font-size:18px;margin-bottom:6px}
.strip__body p{font-size:14.5px;color:var(--muted);line-height:1.75}

/* ---------- 场景标签区 ---------- */
.scene-wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:52px;align-items:center}
.scene-tags{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.scene-tags a{
  display:inline-flex;padding:10px 18px;border-radius:999px;border:1px solid var(--line);
  background:#fff;font-size:14.5px;font-weight:600;color:var(--body-text);
}
.scene-tags a:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-2px)}
.scene-img img{border-radius:var(--r-img);box-shadow:var(--sh-1);aspect-ratio:5/4;object-fit:cover;width:100%}

/* ---------- 深色数据带 ---------- */
.dark-band{background:var(--ink);color:#fff;position:relative;overflow:hidden}
.dark-band::after{
  content:"";position:absolute;right:-120px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  border:56px solid rgba(184,240,60,.14);
}
.dark-band .container{position:relative;z-index:2}
.dark-band h2{color:#fff}
.dark-band .sec-sub{color:rgba(255,255,255,.66)}
.band-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.14);border-radius:var(--r-card);overflow:hidden;margin-top:44px}
.band-cell{background:var(--ink);padding:30px 24px}
.band-cell b{display:block;font-size:38px;font-weight:800;color:var(--lime);line-height:1.05;letter-spacing:-.02em}
.band-cell b i{font-style:normal;font-size:15px;color:rgba(255,255,255,.6);margin-left:4px}
.band-cell span{display:block;margin-top:10px;font-size:13.5px;color:rgba(255,255,255,.66)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{box-shadow:var(--sh-1)}
.faq-item.is-open{border-left:3px solid var(--lime);background:var(--soft)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:20px 24px;font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q .no{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.06em;min-width:28px}
.faq-q .ic{
  margin-left:auto;flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--lime-soft);color:var(--ink);font-size:12px;transition:all .2s ease;
}
.faq-item.is-open .faq-q .ic{background:var(--ink);color:var(--lime)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a__in{padding:0 24px 22px 68px;font-size:15.5px;line-height:1.9;color:var(--body-text)}
.faq-item.is-open .faq-a{max-height:420px}

/* ---------- CTA ---------- */
.cta-band{background:var(--ink);color:#fff;position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;left:-140px;bottom:-190px;width:460px;height:460px;border-radius:50%;
  border:60px solid rgba(184,240,60,.16);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;padding:78px 0}
.cta-inner h2{color:#fff;max-width:16em}
.cta-inner p{margin-top:14px;color:rgba(255,255,255,.72);max-width:34em;font-size:16px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:66px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:48px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:14.5px;color:var(--muted);line-height:1.85;max-width:36em}
.footer-nav h4{font-size:15px;margin-bottom:16px}
.footer-nav ul{display:flex;flex-direction:column;gap:11px}
.footer-nav a,.footer-nav li{font-size:14.5px;color:var(--muted)}
.footer-nav a:hover{color:var(--ink);background:var(--lime-soft)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);text-decoration:underline;text-underline-offset:4px}
.footer-bottom a:hover{color:var(--ink);background:var(--lime-soft)}

/* ---------- 主内容偏移 ---------- */
.main{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column}
.main > section:first-child{margin-top:0}
@media(min-width:1024px){.site-footer{margin-left:var(--side-w)}}

/* ---------- 响应式 ---------- */
@media(max-width:1439px){
  :root{--pad:40px}
}
@media(max-width:1023px){
  :root{--pad:28px;--sec:72px}
  .sidebar{
    top:0;left:0;right:0;bottom:auto;width:100%;height:64px;
    flex-direction:row;align-items:center;justify-content:space-between;
    padding:0 18px;border-right:0;border-bottom:1px solid var(--line);overflow:visible;
  }
  .brand{margin-bottom:0;font-size:19px;padding-left:10px}
  .nav-toggle{display:inline-flex}
  .nav{
    position:fixed;top:64px;left:0;right:0;bottom:0;background:#fff;
    padding:20px 18px 28px;overflow-y:auto;gap:6px;
    transform:translateY(-112%);visibility:hidden;transition:transform .28s ease,visibility .28s ease;
  }
  .nav.is-open{transform:translateY(0);visibility:visible}
  .nav__link{font-size:18px;padding:16px 12px}
  .nav__foot{padding-top:24px}
  .main{margin-left:0;padding-top:64px}
  .site-footer{margin-left:0}
  .intro-grid,.flow-item,.scene-wrap{grid-template-columns:1fr;gap:32px}
  .flow-item.is-reverse .flow-media{order:0}
  .flow-list{gap:56px}
  .strip,.strip:nth-child(even){width:100%}
  .band-grid{grid-template-columns:repeat(2,1fr)}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:60px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .footer-brand{grid-column:1/-1}
}
@media(max-width:639px){
  :root{--pad:20px;--sec:56px}
  body{font-size:15.5px}
  .page-head__inner{padding:56px var(--pad) 52px}
  .page-head .lead{font-size:15.5px}
  .metrics{grid-template-columns:1fr}
  .band-grid{grid-template-columns:1fr}
  .strip{padding:20px;gap:16px}
  .faq-q{padding:18px;font-size:15.5px;gap:12px}
  .faq-a__in{padding:0 18px 18px 18px}
  .footer-grid{grid-template-columns:1fr}
  .flow-media img,.scene-img img{aspect-ratio:16/10}
  .btn{padding:13px 22px;width:100%}
  .cta-actions{width:100%}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category3 */
:root{
  --lime:#B8F03C;
  --lime-soft:#EEF8D2;
  --ink:#14171C;
  --orange:#FF6A2B;
  --bg:#F4F6F1;
  --bg-soft:#F8FAF3;
  --card:#FFFFFF;
  --text:#14171C;
  --body:#3C4249;
  --muted:#6E767D;
  --line:#E1E5DA;
  --input:#D8DCD2;
  --ok:#2F9E63;
  --warn:#E0483A;
  --r-btn:6px;
  --r-card:14px;
  --r-img:12px;
  --sh:0 2px 8px rgba(20,23,28,.06);
  --sh-hover:0 10px 24px rgba(20,23,28,.10);
  --nav-w:260px;
  --sp-section:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--body);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink);text-decoration:none}
a:focus-visible,button:focus-visible,summary:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:2px;
  border-radius:4px;
}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;line-height:1.3;text-wrap:balance}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 48px}
.section{padding:var(--sp-section) 0}
.section--tight{padding:72px 0}
.section--soft{background:var(--bg-soft)}
.section-head{max-width:760px;margin-bottom:32px}
.section-head h2{font-size:32px;font-weight:700;letter-spacing:-.01em}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.08em;color:var(--ink);
  background:var(--lime-soft);border-radius:4px;padding:4px 10px;margin-bottom:14px;font-weight:600;
}

/* ============ 品牌 ============ */
.brand{
  display:inline-flex;align-items:center;gap:3px;
  font-size:20px;font-weight:800;letter-spacing:-.02em;color:var(--ink);
}
.brand em{
  font-style:normal;background:var(--lime);color:var(--ink);
  padding:1px 6px;border-radius:4px;
}

/* ============ 左侧导航 ============ */
.nav{
  position:fixed;top:0;left:0;z-index:60;
  width:var(--nav-w);height:100vh;
  padding:28px 20px 24px;
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  overflow-y:auto;
}
.nav .brand{margin:0 0 6px 8px}
.nav__label{
  display:block;font-size:12px;letter-spacing:.06em;color:var(--muted);
  padding-left:12px;margin:22px 0 10px;
}
.nav__link{
  display:flex;align-items:center;gap:10px;
  height:46px;padding:0 12px;margin-bottom:4px;
  border-left:4px solid transparent;border-radius:6px;
  font-size:15px;color:var(--ink);
  transition:background .18s ease,transform .18s ease,border-color .18s ease;
}
.nav__link i{width:16px;text-align:center;font-size:14px;color:var(--muted);transition:color .18s ease}
.nav__link:hover{background:#F0F3EA;transform:translateX(2px)}
.nav__link.is-active{background:var(--lime-soft);border-left-color:var(--lime);font-weight:700}
.nav__link.is-active i{color:var(--ink)}
.nav__foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--line)}
.nav__contact{margin-top:14px;font-size:13px;line-height:1.7;color:var(--muted)}
.nav__contact b{display:block;color:var(--ink);font-size:14px;margin-bottom:4px}

/* ============ 移动端顶栏 ============ */
.mobile-bar{
  display:none;position:fixed;top:0;left:0;right:0;z-index:70;
  height:64px;padding:0 20px;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;
  backdrop-filter:blur(6px);
}
.menu-toggle{
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;color:var(--ink);font-size:17px;
  display:flex;align-items:center;justify-content:center;
  transition:background .18s ease;
}
.menu-toggle:hover{background:var(--lime-soft)}
.nav-backdrop{
  display:none;position:fixed;inset:0;z-index:55;
  background:rgba(20,23,28,.5);opacity:0;transition:opacity .22s ease;
}
body.nav-open .nav-backdrop{display:block;opacity:1}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:2px solid transparent;
  transition:background .18s ease,color .18s ease,transform .18s ease,border-color .18s ease;
  cursor:pointer;
}
.btn--primary{background:var(--lime);color:var(--ink)}
.btn--primary:hover{background:var(--ink);color:var(--lime);transform:translateY(-2px)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn--ghost:active{transform:translateY(0)}
.btn--onDark{background:transparent;border-color:#fff;color:#fff}
.btn--onDark:hover{background:#fff;color:var(--ink);transform:translateY(-2px)}
.btn--block{width:100%}
.btn--sm{padding:10px 18px;font-size:14px}

.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);padding-bottom:2px;
  transition:background .18s ease,border-color .18s ease;
}
.link-arrow:hover{background:var(--lime-soft);border-color:transparent}
.link-arrow i{font-size:12px;transition:transform .18s ease}
.link-arrow:hover i{transform:translateX(4px)}

/* ============ 内容区 ============ */
.site-main{margin-left:var(--nav-w);min-height:100vh}

/* ============ 分类页头 ============ */
.page-hero{position:relative;overflow:hidden;background:var(--ink)}
.page-hero__img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  opacity:.42;
}
.page-hero__shade{
  position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(20,23,28,.92) 0%,rgba(20,23,28,.62) 58%,rgba(20,23,28,.48) 100%);
}
.hero-gauge{
  position:absolute;top:34px;right:36px;width:132px;height:26px;
  background:repeating-linear-gradient(90deg,rgba(184,240,60,.95) 0 2px,transparent 2px 12px);
  opacity:.75;
}
.page-hero__inner{position:relative;z-index:2;padding-top:104px;padding-bottom:88px;max-width:900px}
.page-hero h1{
  color:#fff;font-size:52px;line-height:1.14;font-weight:800;letter-spacing:-.02em;
}
.page-hero__lead{
  margin-top:20px;max-width:720px;color:rgba(255,255,255,.82);font-size:17px;line-height:1.85;
}
.crumb{
  display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.62);
  margin-bottom:22px;
}
.crumb a{color:rgba(255,255,255,.62)}
.crumb a:hover{color:var(--lime)}
.crumb i{font-style:normal;opacity:.5}
.crumb span{color:#fff;font-weight:600}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.metric-row{
  display:flex;flex-wrap:wrap;gap:0;margin-top:44px;
  border-top:1px solid rgba(255,255,255,.16);padding-top:24px;
}
.metric-row li{
  padding:0 30px;border-left:1px solid rgba(255,255,255,.16);
}
.metric-row li:first-child{padding-left:0;border-left:0}
.metric-row b{
  display:block;font-size:30px;font-weight:800;color:var(--lime);
  line-height:1.2;letter-spacing:-.01em;font-variant-numeric:tabular-nums;
}
.metric-row span{font-size:13px;color:rgba(255,255,255,.68)}

/* ============ 对照卡 ============ */
.cmp-grid{margin-left:-12px;margin-right:-12px}
.cmp-grid > .cell{padding-left:12px;padding-right:12px;margin-bottom:24px}
.cmp-card{
  position:relative;height:100%;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 26px 26px;box-shadow:var(--sh);
  display:flex;flex-direction:column;
  transition:box-shadow .2s ease,transform .2s ease;
  overflow:hidden;
}
.cmp-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--bar,var(--lime));
}
.cmp-card:hover{box-shadow:var(--sh-hover);transform:translateY(-3px)}
.cmp-card--lime{--bar:var(--lime)}
.cmp-card--orange{--bar:var(--orange)}
.cmp-card--ink{--bar:var(--ink)}
.cmp-card h3{font-size:20px;font-weight:600;margin-bottom:10px}
.cmp-card .cmp-meta{
  font-size:13px;color:var(--muted);margin-bottom:18px;
  padding-bottom:16px;border-bottom:1px solid var(--line);
}
.cmp-list{display:flex;flex-direction:column;gap:12px;margin-bottom:22px}
.cmp-list li{position:relative;padding-left:20px;font-size:15px;line-height:1.75;color:var(--body)}
.cmp-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;
  background:var(--bar,var(--lime));border-radius:2px;
}
.cmp-card .link-arrow{margin-top:auto;align-self:flex-start}

/* ============ 对照行 ============ */
.compare-table{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh)}
.compare-head,.compare-row{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:0}
.compare-head{
  background:var(--ink);color:#fff;font-size:14px;font-weight:600;letter-spacing:.02em;
}
.compare-head > div{padding:16px 22px}
.compare-head > div:nth-child(2){border-left:1px solid rgba(255,255,255,.14)}
.compare-head > div:nth-child(3){border-left:1px solid rgba(255,255,255,.14);color:var(--lime)}
.compare-row{border-top:1px solid var(--line)}
.compare-row:nth-child(even){background:var(--bg-soft)}
.compare-row > div{padding:18px 22px;font-size:15px;line-height:1.75}
.compare-row__key{font-weight:600;color:var(--ink)}
.compare-row > div:nth-child(2){border-left:1px solid var(--line)}
.compare-row > div:nth-child(3){border-left:1px solid var(--line);color:var(--body)}

/* ============ 图文模块 ============ */
.split{
  display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;
}
.split__media{position:relative}
.split__media img{
  width:100%;height:380px;object-fit:cover;border-radius:var(--r-img);
}
.split__media::after{
  content:"";position:absolute;left:0;bottom:-14px;width:120px;height:3px;background:var(--lime);
}
.split__body h2{font-size:30px;margin-bottom:18px}
.split__body p{color:var(--body)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.tag{
  font-size:12px;letter-spacing:.06em;font-weight:600;
  background:var(--lime-soft);color:var(--ink);
  padding:6px 12px;border-radius:6px;
}
.tag--ink{background:var(--ink);color:var(--lime)}
.tag--line{background:transparent;border:1px solid var(--line);color:var(--muted)}

/* ============ 编号条块 ============ */
.step-list{display:flex;flex-direction:column;gap:14px}
.step-item{
  display:grid;grid-template-columns:88px 1fr auto;gap:22px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 26px;box-shadow:var(--sh);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.step-item:nth-child(even){background:var(--bg-soft)}
.step-item:hover{box-shadow:var(--sh-hover);transform:translateY(-3px);border-color:#cfd6c6}
.step-item__num{
  font-size:30px;font-weight:800;color:var(--ink);letter-spacing:-.02em;
  border-left:3px solid var(--lime);padding-left:14px;
}
.step-item h3{font-size:18px;font-weight:600;margin-bottom:6px}
.step-item p{font-size:14px;color:var(--muted);line-height:1.7;margin:0}
.step-item__side{font-size:13px;color:var(--muted);white-space:nowrap}

/* ============ 保障卡 ============ */
.guard-grid{margin-left:-12px;margin-right:-12px}
.guard-grid > .cell{padding-left:12px;padding-right:12px;margin-bottom:24px}
.guard-card{
  height:100%;background:var(--card);border:1px solid var(--line);
  border-left:3px solid var(--lime);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh);
}
.guard-card i{font-size:20px;color:var(--ink);margin-bottom:14px;display:block}
.guard-card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.guard-card p{font-size:14px;color:var(--muted);line-height:1.75}

/* ============ FAQ ============ */
.faq-wrap{max-width:820px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:14px;overflow:hidden;transition:border-color .2s ease,background .2s ease;
}
.faq-item[open]{background:var(--bg-soft);border-color:#cfd6c6}
.faq-item summary{
  display:flex;align-items:center;gap:16px;
  padding:20px 24px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--ink);
  border-left:3px solid transparent;
}
.faq-item[open] summary{border-left-color:var(--lime)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";margin-left:auto;font-size:20px;font-weight:400;color:var(--muted);line-height:1;
}
.faq-item[open] summary::after{content:"−";color:var(--ink)}
.faq-num{font-size:13px;color:var(--muted);font-weight:600;min-width:22px}
.faq-body{padding:0 24px 22px 62px;font-size:15px;color:var(--body);line-height:1.85}

/* ============ 尾部 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink);color:#fff;
  padding:72px 0;
}
.cta-band::after{
  content:"";position:absolute;left:-60px;bottom:-120px;width:420px;height:240px;
  border:2px solid rgba(184,240,60,.28);border-radius:50%;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;
}
.cta-inner h2{color:#fff;font-size:30px;max-width:620px}
.cta-inner p{color:rgba(255,255,255,.72);margin-top:12px;font-size:15px;max-width:620px}

/* ============ 页脚 ============ */
.site-footer{background:#0F1216;color:rgba(255,255,255,.62);padding:64px 0 28px;border-top:3px solid var(--lime)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:48px}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:420px}
.footer-nav h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-nav li{margin-bottom:10px;font-size:14px;color:rgba(255,255,255,.6)}
.footer-nav a{color:rgba(255,255,255,.72);transition:color .18s ease}
.footer-nav a:hover{color:var(--lime)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.7)}
.footer-bottom a:hover{color:var(--lime)}

/* ============ 断点 ============ */
@media (min-width:1440px){
  :root{--nav-w:280px}
  .page-hero h1{font-size:56px}
}
@media (max-width:1023px){
  :root{--sp-section:72px}
  .mobile-bar{display:flex}
  .nav{
    left:0;top:0;width:288px;height:100vh;padding-top:22px;
    transform:translateX(-100%);transition:transform .26s ease;
    border-right:1px solid var(--line);
  }
  body.nav-open .nav{transform:translateX(0)}
  body.nav-open{overflow:hidden}
  .nav__link{height:56px;font-size:18px}
  .site-main{margin-left:0;padding-top:64px}
  .page-hero__inner{padding-top:72px;padding-bottom:64px}
  .page-hero h1{font-size:38px}
  .hero-gauge{width:90px;right:20px;top:22px}
  .split{grid-template-columns:1fr;gap:34px}
  .split__media img{height:300px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .step-item{grid-template-columns:70px 1fr;gap:16px}
  .step-item__side{grid-column:2;font-size:12px}
}
@media (max-width:767px){
  :root{--sp-section:56px}
  .container{padding:0 20px}
  .section--tight{padding:52px 0}
  .page-hero h1{font-size:32px;letter-spacing:-.01em}
  .page-hero__lead{font-size:15px}
  .hero-actions .btn{width:100%}
  .metric-row li{padding:0 18px}
  .metric-row b{font-size:24px}
  .section-head h2{font-size:24px}
  .split__body h2{font-size:24px}
  .compare-head,.compare-row{grid-template-columns:1fr}
  .compare-head > div:nth-child(2),
  .compare-head > div:nth-child(3),
  .compare-row > div:nth-child(2),
  .compare-row > div:nth-child(3){border-left:0;border-top:1px dashed var(--line)}
  .compare-head > div:nth-child(3){color:#fff}
  .cmp-card{padding:24px 20px 20px}
  .cta-inner h2{font-size:23px}
  .cta-band{padding:56px 0}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .faq-body{padding:0 20px 20px 20px}
  .faq-item summary{padding:18px 20px;font-size:15px}
}

/* roulang page: category2 */
:root{
  --volt:#B8F03C;
  --volt-soft:#EEF8D2;
  --ink:#14171C;
  --orange:#FF6A2B;
  --bg:#F4F6F1;
  --soft:#F8FAF3;
  --card:#FFFFFF;
  --text:#14171C;
  --body:#3C4249;
  --muted:#6E767D;
  --line:#E1E5DA;
  --input-line:#D8DCD2;
  --ok:#2F9E63;
  --warn:#E0483A;
  --r-btn:6px;
  --r-card:14px;
  --r-img:12px;
  --sh:0 2px 8px rgba(20,23,28,.06);
  --sh-h:0 10px 24px rgba(20,23,28,.10);
  --side:260px;
  --gap:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.is-locked{overflow:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink);text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{color:var(--text);margin:0;line-height:1.3;text-wrap:balance}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
.num,time,.stat b,.tl-num{font-variant-numeric:tabular-nums}

/* ============ 布局 ============ */
.layout{min-height:100vh}
.sidebar{
  position:fixed;top:0;left:0;width:var(--side);height:100vh;z-index:60;
  background:var(--card);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:28px 20px 24px;overflow-y:auto;
}
.content{margin-left:var(--side);min-height:100vh;display:flex;flex-direction:column}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 48px}
.section{padding:var(--gap) 0}
.section--soft{background:var(--soft)}
.section--ink{background:var(--ink);color:#B7BDC4}
.section--ink h2,.section--ink h3,.section--ink h4{color:#fff}

/* ============ 品牌 ============ */
.brand{
  display:inline-flex;align-items:baseline;gap:2px;
  font-size:22px;font-weight:800;letter-spacing:-.02em;color:var(--ink);
}
.brand em{font-style:normal;color:var(--ink)}
.brand::after{
  content:"";width:8px;height:8px;border-radius:2px;background:var(--volt);
  display:inline-block;margin-left:6px;transform:translateY(-2px);
}

/* ============ 侧栏导航 ============ */
.nav{display:flex;flex-direction:column;gap:4px;margin-top:28px;flex:1}
.nav__label{font-size:12px;letter-spacing:.14em;color:var(--muted);padding:0 14px;margin-bottom:8px}
.nav__link{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:11px 14px;border-radius:8px;font-size:15px;font-weight:500;
  color:var(--body);transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.nav__link i{width:18px;text-align:center;color:var(--muted);font-size:14px;transition:color .18s ease}
.nav__link:hover{background:#F0F3EA;color:var(--ink);transform:translateX(2px)}
.nav__link:hover i{color:var(--ink)}
.nav__link.is-active{
  background:var(--volt-soft);color:var(--ink);font-weight:700;
  box-shadow:inset 4px 0 0 var(--volt);
}
.nav__link.is-active i{color:var(--ink)}
.nav__foot{margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}
.nav__contact{margin-top:16px;font-size:13px;line-height:1.7;color:var(--muted)}
.nav__contact b{display:block;color:var(--ink);font-size:14px;margin-bottom:2px}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border:2px solid var(--ink);border-radius:var(--r-btn);
  background:transparent;color:var(--ink);font-size:18px;cursor:pointer;transition:.2s;
}
.nav-toggle:hover{background:var(--ink);color:#fff}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:700;line-height:1;letter-spacing:.01em;
  padding:15px 28px;border-radius:var(--r-btn);border:2px solid transparent;
  cursor:pointer;transition:background .2s ease,color .2s ease,transform .2s ease,border-color .2s ease;
  text-align:center;
}
.btn--primary{background:var(--volt);color:var(--ink);border-color:var(--volt)}
.btn--primary:hover{background:var(--ink);color:var(--volt);border-color:var(--ink);transform:translateY(-2px)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn--ghost:active{transform:translateY(0)}
.btn--onink{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn--onink:hover{background:#fff;color:var(--ink);border-color:#fff;transform:translateY(-2px)}
.btn--sm{padding:11px 20px;font-size:14px}
.btn--block{width:100%}
.btn:focus-visible{outline:2px solid var(--volt);outline-offset:2px}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;letter-spacing:.06em;
  padding:4px 10px;border-radius:var(--r-btn);
  background:var(--volt-soft);color:var(--ink);
}
.badge--ink{background:var(--ink);color:var(--volt)}
.badge--line{background:transparent;border:1px solid var(--line);color:var(--muted);font-weight:600}
.tagline{display:flex;flex-wrap:wrap;gap:8px}

/* ============ 面包屑 ============ */
.crumbs{font-size:14px;color:rgba(255,255,255,.68);display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.crumbs a{color:rgba(255,255,255,.86)}
.crumbs a:hover{color:var(--volt)}
.crumbs .sep{opacity:.5}
.crumbs .current{color:#fff;font-weight:700}

/* ============ Hero ============ */
.hero-cat{
  position:relative;overflow:hidden;color:#fff;
  background:#14171C url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding:38px 0 60px;
}
.hero-cat::before{content:"";position:absolute;inset:0;background:rgba(20,23,28,.66)}
.hero-cat>.container{position:relative;z-index:2}
.hero-chip{
  position:absolute;right:0;bottom:0;width:42%;height:130px;
  background:var(--volt);opacity:.16;z-index:1;
  clip-path:polygon(14% 0,100% 0,100% 100%,0 100%);
}
.hero-scale{position:absolute;right:48px;top:44px;display:flex;gap:6px;align-items:flex-end;z-index:2;height:46px}
.hero-scale i{display:block;width:2px;background:rgba(184,240,60,.75)}
.hero-scale i:nth-child(1){height:14px}
.hero-scale i:nth-child(2){height:24px}
.hero-scale i:nth-child(3){height:34px}
.hero-scale i:nth-child(4){height:46px;background:var(--volt)}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  letter-spacing:.1em;color:var(--volt);margin-bottom:16px;
}
.hero-title{
  font-size:clamp(30px,4.6vw,54px);line-height:1.14;font-weight:800;
  letter-spacing:-.02em;color:#fff;max-width:14em;
}
.hero-lead{
  margin-top:20px;max-width:43em;font-size:17px;line-height:1.85;color:rgba(255,255,255,.84);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:0;margin-top:44px;padding-top:26px;
  border-top:1px solid rgba(255,255,255,.18);
}
.stat{padding-right:34px;margin-right:34px;border-right:1px solid rgba(255,255,255,.18)}
.stat:last-child{border-right:0;margin-right:0;padding-right:0}
.stat b{display:block;font-size:26px;font-weight:800;color:var(--volt);line-height:1.2;letter-spacing:-.01em}
.stat span{font-size:13px;color:rgba(255,255,255,.68);display:block;margin-top:2px}

/* ============ 板块标题 ============ */
.sec-head{margin-bottom:32px;max-width:900px}
.sec-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;letter-spacing:-.01em}
.sec-head p{margin-top:14px;font-size:16px;color:var(--muted);line-height:1.85}
.section--ink .sec-head p{color:#9AA2AA}
.sec-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.link-more{
  font-size:14px;font-weight:700;color:var(--ink);border-bottom:2px solid var(--volt);
  padding-bottom:2px;white-space:nowrap;transition:.2s;
}
.link-more:hover{background:var(--volt);border-color:var(--volt)}
.section--ink .link-more{color:#fff}
.section--ink .link-more:hover{color:var(--ink)}

/* ============ 通用卡片 ============ */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
  height:100%;display:flex;flex-direction:column;padding:28px;
}
.card:hover{box-shadow:var(--sh-h);transform:translateY(-3px)}
.card--bar{border-top:4px solid var(--volt)}
.card--bar-orange{border-top:4px solid var(--orange)}
.card--bar-ink{border-top:4px solid var(--ink)}
.card h3{font-size:19px;font-weight:600;margin:14px 0 10px}
.card p{font-size:15px;line-height:1.8;color:var(--body)}
.card__no{
  font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.card__icon{
  width:42px;height:42px;border-radius:10px;background:var(--volt-soft);
  display:flex;align-items:center;justify-content:center;color:var(--ink);font-size:17px;
}

/* ============ 配置信息四卡 ============ */
.info-intro{max-width:900px;margin-bottom:36px;font-size:17px;line-height:1.9;color:var(--body)}

/* ============ 装备图卡 ============ */
.gcard{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:box-shadow .22s ease,transform .22s ease;
}
.gcard:hover{box-shadow:var(--sh-h);transform:translateY(-3px)}
.gcard__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--soft)}
.gcard__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.gcard:hover .gcard__media img{transform:scale(1.04)}
.gcard__body{padding:24px 26px 28px;display:flex;flex-direction:column;flex:1}
.gcard__body h3{font-size:19px;font-weight:600;margin:12px 0 10px}
.gcard__body p{font-size:15px;line-height:1.8;color:var(--body)}
.gcard__pts{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);font-size:14px;color:var(--muted);line-height:1.9}
.gcard__pts b{color:var(--ink);font-weight:700}

/* ============ 时间轴 ============ */
.timeline{position:relative;list-style:none;margin:0;padding:0 0 0 56px;max-width:900px}
.timeline::before{
  content:"";position:absolute;left:19px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,var(--volt) 0%,rgba(184,240,60,.18) 100%);
}
.tl-item{position:relative;margin-bottom:26px}
.tl-item:last-child{margin-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-43px;top:30px;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--volt);z-index:2;
}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 28px;box-shadow:var(--sh);transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.tl-card:hover{box-shadow:var(--sh-h);transform:translateY(-2px);border-color:#D5DCC6}
.tl-num{
  font-size:13px;font-weight:800;letter-spacing:.12em;color:var(--orange);
  display:block;margin-bottom:6px;
}
.tl-card h3{font-size:19px;font-weight:600;margin-bottom:10px}
.tl-card p{font-size:15px;line-height:1.8;color:var(--body)}

/* ============ 验收清单 ============ */
.checklist{list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px}
.checklist li{
  display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line);
}
.checklist .num{
  flex:0 0 auto;font-size:15px;font-weight:800;color:var(--ink);
  font-variant-numeric:tabular-nums;padding-top:3px;min-width:28px;
}
.checklist h4{font-size:16px;font-weight:600;margin-bottom:6px}
.checklist p{font-size:14px;line-height:1.8;color:var(--muted);margin:0}

/* ============ 场景条目卡 ============ */
.scard{
  display:flex;gap:22px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh);overflow:hidden;height:100%;
  transition:box-shadow .22s ease,transform .22s ease;
}
.scard:hover{box-shadow:var(--sh-h);transform:translateY(-3px)}
.scard__media{flex:0 0 42%;overflow:hidden;background:var(--soft)}
.scard__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.scard:hover .scard__media img{transform:scale(1.04)}
.scard__body{padding:24px 26px 26px 0;flex:1;min-width:0}
.scard__body h3{font-size:18px;font-weight:600;margin:10px 0 10px}
.scard__body p{font-size:14px;line-height:1.8;color:var(--body)}

/* ============ FAQ ============ */
.faq{max-width:820px}
.faq__item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq__item:hover{border-color:#D5DCC6;box-shadow:var(--sh)}
.faq__item.is-open{border-left:3px solid var(--volt);background:var(--soft)}
.faq__q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  background:transparent;border:0;cursor:pointer;padding:20px 24px;
  font-size:16px;font-weight:600;color:var(--text);line-height:1.6;
}
.faq__q:focus-visible{outline:2px solid var(--volt);outline-offset:-4px}
.faq__no{
  font-size:13px;font-weight:800;color:var(--muted);letter-spacing:.08em;
  font-variant-numeric:tabular-nums;flex:0 0 auto;
}
.faq__t{flex:1;min-width:0}
.faq__ic{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;border:2px solid var(--ink);
  position:relative;transition:background .2s ease;
}
.faq__ic::before,.faq__ic::after{
  content:"";position:absolute;background:var(--ink);left:50%;top:50%;transform:translate(-50%,-50%);
}
.faq__ic::before{width:10px;height:2px}
.faq__ic::after{width:2px;height:10px;transition:opacity .2s ease}
.faq__item.is-open .faq__ic{background:var(--volt);border-color:var(--volt)}
.faq__item.is-open .faq__ic::after{opacity:0}
.faq__a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq__a p{padding:0 24px 22px 60px;font-size:15px;line-height:1.9;color:var(--body)}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;background:var(--ink);color:#fff;overflow:hidden;
  padding:72px 0;
}
.cta-band::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:64px;
  background:linear-gradient(90deg,rgba(184,240,60,.24),rgba(184,240,60,0));
  clip-path:polygon(0 62%,100% 0,100% 100%,0 100%);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.4vw,30px);font-weight:700;letter-spacing:-.01em}
.cta-inner p{margin-top:12px;font-size:15px;color:#9AA2AA;max-width:44em}
.cta-note{margin-top:14px;font-size:13px;color:#7E868E}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#B7BDC4;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:44px}
.site-footer .brand{color:#fff;font-size:22px}
.site-footer .brand em{color:var(--volt)}
.site-footer .brand::after{background:var(--volt)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:#98A0A8;max-width:34em}
.footer-nav h4{color:#fff;font-size:15px;font-weight:700;margin:0 0 16px}
.footer-nav ul{list-style:none}
.footer-nav li{margin-bottom:10px;font-size:14px;color:#A3AAB2}
.footer-nav a{color:#A3AAB2;transition:color .2s ease}
.footer-nav a:hover{color:var(--volt)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#818991;
}
.footer-bottom a{color:var(--volt)}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  :root{--side:260px}
}
@media (max-width:1023px){
  :root{--gap:72px}
  .sidebar{
    position:sticky;top:0;width:100%;height:64px;flex-direction:row;
    align-items:center;justify-content:space-between;padding:0 18px;
    border-right:0;border-bottom:1px solid var(--line);overflow:visible;
  }
  .sidebar .brand{font-size:20px}
  .nav-toggle{display:inline-flex}
  .nav{
    position:fixed;left:0;right:0;top:64px;bottom:0;margin-top:0;
    background:#fff;padding:20px 18px 32px;gap:2px;overflow-y:auto;
    transform:translateX(-104%);transition:transform .28s ease;z-index:70;
  }
  .nav.is-open{transform:translateX(0)}
  .nav__label{display:none}
  .nav__link{height:56px;font-size:18px;padding:0 16px;border-radius:10px}
  .nav__link i{font-size:16px}
  .nav__foot{margin-top:20px}
  .content{margin-left:0}
  .container{padding:0 28px}
  .hero-scale{right:28px;top:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:639px){
  :root{--gap:56px}
  .container{padding:0 20px}
  .hero-cat{padding:26px 0 46px}
  .hero-lead{font-size:15.5px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .hero-stats{margin-top:34px;padding-top:22px;gap:18px 0}
  .stat{padding-right:20px;margin-right:20px}
  .stat b{font-size:22px}
  .hero-scale{display:none}
  .card{padding:20px}
  .gcard__body{padding:20px}
  .scard{flex-direction:column;gap:0}
  .scard__media{flex:0 0 auto;aspect-ratio:16/10}
  .scard__body{padding:20px}
  .tl-card{padding:20px}
  .timeline{padding-left:40px}
  .timeline::before{left:11px}
  .tl-item::before{left:-37px;top:26px}
  .checklist{grid-template-columns:1fr;gap:0}
  .faq__q{padding:16px 18px;font-size:15px;gap:12px}
  .faq__a p{padding:0 18px 18px 18px}
  .cta-band{padding:56px 0}
  .cta-inner .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .sec-head--split{flex-direction:column;align-items:flex-start;gap:14px}
  .timeline{max-width:100%}
}