/* roulang page: index */
:root{
  --green:#123C35;
  --green-deep:#0F2E28;
  --mint:#35C68A;
  --mint-soft:#E4F7EE;
  --clay:#F26A4B;
  --clay-deep:#D9502F;
  --sand:#F7F3EA;
  --sand-2:#FBF8F1;
  --card:#FFFFFF;
  --ink:#16211E;
  --ink-2:#5E6B66;
  --line:#DDE5DD;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-xs:8px;
  --sh-1:0 8px 24px rgba(18,33,30,.06);
  --sh-2:0 12px 32px rgba(18,33,30,.10);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body.site-body{
  margin:0;
  font-family:var(--font-cn);
  background:var(--sand);
  color:var(--ink);
  font-size:16.5px;
  line-height:1.88;
  -webkit-font-smoothing:antialiased;
}
body.site-body img{max-width:100%;display:block}
body.site-body a{color:inherit;text-decoration:none}
body.site-body button{font-family:inherit}
body.site-body h1,body.site-body h2,body.site-body h3,body.site-body h4{
  margin:0;font-weight:700;letter-spacing:-.01em;color:var(--ink);line-height:1.32;
}
body.site-body p{margin:0}
body.site-body ul{margin:0;padding:0;list-style:none}

.wrap{
  width:100%;max-width:1240px;margin:0 auto;
  padding-left:32px;padding-right:32px;
}
@media (max-width:1023px){.wrap{padding-left:24px;padding-right:24px}}
@media (max-width:639px){.wrap{padding-left:20px;padding-right:20px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(251,248,241,.92);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-stuck{
  background:rgba(251,248,241,.98);
  border-bottom-color:var(--line);
  box-shadow:0 6px 20px rgba(18,33,30,.05);
}
.nav-bar{
  display:flex;align-items:center;gap:20px;
  height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:30px;height:30px;flex:0 0 auto;position:relative;
  background:var(--green);
  border-radius:8px;
  box-shadow:inset 0 0 0 1.5px rgba(53,198,138,.55);
  overflow:hidden;
}
.brand-mark::before{
  content:"";position:absolute;left:4px;top:4px;width:8px;height:8px;
  background:var(--mint);border-radius:2px;
}
.brand-mark::after{
  content:"";position:absolute;left:4px;bottom:4px;width:8px;height:8px;
  background:var(--mint);border-radius:2px;opacity:.6;
}
.brand-mark i{
  position:absolute;right:4px;top:4px;width:8px;height:20px;
  background:var(--clay);border-radius:2px;display:block;
}
.brand-name{
  font-size:17px;font-weight:700;color:var(--green);letter-spacing:-.02em;line-height:1.15;
}
.brand-name small{
  display:block;font-size:11px;font-weight:500;color:var(--ink-2);letter-spacing:.06em;
}

.nav-main{display:flex;align-items:center;gap:2px;margin-left:8px;flex:1 1 auto;min-width:0}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 12px;border-radius:10px;
  font-size:14.5px;font-weight:500;color:#31423C;white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--green);background:rgba(53,198,138,.10)}
.nav-link.is-active{color:var(--green);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--mint);
}

.nav-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.cmd-search{
  display:flex;align-items:center;gap:8px;
  height:38px;padding:0 10px 0 12px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  min-width:210px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.cmd-search svg{flex:0 0 auto;color:#8A968F}
.cmd-search input{
  border:0;outline:0;background:transparent;width:100%;
  font-size:13.5px;color:var(--ink);font-family:inherit;
}
.cmd-search input::placeholder{color:#9AA6A0}
.cmd-search:focus-within{border-color:var(--mint);box-shadow:0 0 0 3px rgba(53,198,138,.20)}
.keycap{
  font-size:11px;color:#7C8A83;background:var(--sand);
  border:1px solid var(--line);border-radius:6px;padding:1px 5px;line-height:1.5;
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:11px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .16s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
.btn-primary{background:var(--clay);color:#fff;box-shadow:0 6px 16px rgba(242,106,75,.26)}
.btn-primary:hover{background:var(--clay-deep);transform:translateY(-1px);box-shadow:0 10px 22px rgba(242,106,75,.30)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(242,106,75,.24)}
.btn-ghost{background:#fff;color:var(--green);border-color:#C9D8CF}
.btn-ghost:hover{background:var(--mint-soft);border-color:var(--mint)}
.btn-ghost:active{background:#D5F2E4}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

.nav-cta{height:38px;padding:0 16px;font-size:14px;border-radius:10px}

.menu-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--green);
  align-items:center;justify-content:center;cursor:pointer;
}
.menu-toggle:focus-visible{outline:2px solid var(--mint);outline-offset:2px}

.mobile-drawer{
  display:none;border-top:1px solid var(--line);
  background:var(--sand-2);padding:14px 0 18px;
}
.mobile-drawer.open{display:block}
.mobile-drawer a{
  display:block;padding:12px 4px;font-size:15.5px;font-weight:500;color:#2C3A35;
  border-bottom:1px solid rgba(221,229,221,.7);
}
.mobile-drawer a:last-child{border-bottom:0}
.mobile-drawer a.is-active{color:var(--green);font-weight:700}

@media (max-width:1023px){
  .nav-main,.cmd-search{display:none}
  .menu-toggle{display:inline-flex}
  .nav-cta{display:none}
}

/* ---------- generic blocks ---------- */
.sec{padding:88px 0}
.sec-tight{padding:64px 0}
@media (max-width:1023px){.sec{padding:64px 0}.sec-tight{padding:48px 0}}
@media (max-width:639px){.sec{padding:48px 0}.sec-tight{padding:40px 0}}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--green);
  background:var(--mint-soft);
  border:1px solid rgba(53,198,138,.34);
  border-radius:7px;padding:4px 10px;letter-spacing:.04em;
}
.sec-title{font-size:clamp(24px,3.2vw,32px);margin-top:16px}
.sec-desc{margin-top:12px;color:var(--ink-2);font-size:16px;max-width:660px}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;line-height:1.6;
  padding:3px 9px;border-radius:7px;
  background:var(--mint-soft);color:#137A54;border:1px solid rgba(53,198,138,.32);
}
.tag-clay{background:#FDEAE4;color:#B8401F;border-color:rgba(242,106,75,.32)}
.tag-plain{background:#fff;color:var(--ink-2);border-color:var(--line)}

.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(53,198,138,.55)}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(1100px 480px at 88% -10%, rgba(53,198,138,.16), transparent 62%),
    radial-gradient(760px 420px at 6% 106%, rgba(242,106,75,.10), transparent 60%),
    var(--sand);
  padding:64px 0 72px;
}
.hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;background:var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(34px,4.4vw,54px);line-height:1.22;margin-top:20px}
.hero h1 em{font-style:normal;color:var(--green);position:relative}
.hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:8px;
  background:rgba(53,198,138,.30);border-radius:4px;z-index:-1;
}
.hero-sub{margin-top:20px;font-size:17px;color:#45534D;max-width:620px;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;
  font-size:13.5px;color:var(--ink-2);
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.dot{width:6px;height:6px;border-radius:50%;background:var(--mint);display:inline-block}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";letter-spacing:.02em}

.hero-visual{position:relative}
.hero-shot{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid rgba(18,60,53,.14);
  box-shadow:0 20px 50px rgba(18,33,30,.14);
  background:#fff;
}
.hero-shot img{width:100%;aspect-ratio:4/3.2;object-fit:cover}
.hero-chip{
  position:absolute;background:#fff;border:1px solid var(--line);
  border-radius:12px;box-shadow:var(--sh-2);
  padding:10px 14px;font-size:13px;color:var(--ink);
  display:flex;align-items:center;gap:9px;
}
.hero-chip strong{font-size:14px;color:var(--green);font-variant-numeric:tabular-nums}
.chip-a{left:-14px;top:38px}
.chip-b{right:-12px;bottom:44px}
.chip-dot{width:9px;height:9px;border-radius:3px;background:var(--mint);flex:0 0 auto}
.chip-dot.orange{background:var(--clay)}

@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{order:2}
  .chip-a{left:6px;top:12px}
  .chip-b{right:6px;bottom:12px}
}
@media (max-width:639px){
  .hero{padding:40px 0 48px}
  .hero-actions .btn{width:100%}
  .hero-chip{position:static;margin-top:10px;display:inline-flex}
  .hero-visual{display:flex;flex-direction:column;gap:4px}
}

/* ---------- value strip ---------- */
.value-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
}
.value-item{
  padding:22px 22px;border-right:1px solid var(--line);
  display:flex;gap:12px;align-items:flex-start;
}
.value-item:last-child{border-right:0}
.value-item .vi-icon{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:var(--mint-soft);color:#137A54;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;
}
.value-item h3{font-size:15px;margin-bottom:4px}
.value-item p{font-size:13.5px;color:var(--ink-2);line-height:1.7}
@media (max-width:1023px){
  .value-strip{grid-template-columns:repeat(2,1fr)}
  .value-item:nth-child(2){border-right:0}
  .value-item:nth-child(1),.value-item:nth-child(2){border-bottom:1px solid var(--line)}
}
@media (max-width:639px){
  .value-strip{grid-template-columns:1fr}
  .value-item{border-right:0;border-bottom:1px solid var(--line)}
  .value-item:last-child{border-bottom:0}
}

/* ---------- split feature ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split + .split{margin-top:72px}
.split-media{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-1);background:#fff;
}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.split-body h2{font-size:clamp(23px,2.6vw,30px);margin-top:14px}
.split-body p{margin-top:14px;color:#43524B;font-size:16px}
.check-list{margin-top:22px;display:grid;gap:12px}
.check-list li{
  display:flex;gap:11px;align-items:flex-start;font-size:15px;color:#34423C;
}
.check-list .ck{
  width:20px;height:20px;border-radius:6px;flex:0 0 auto;margin-top:3px;
  background:var(--mint-soft);color:#137A54;font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
@media (max-width:1023px){
  .split{grid-template-columns:1fr;gap:32px}
  .split.reverse .split-media{order:2}
  .split + .split{margin-top:48px}
}

/* ---------- shots carousel ---------- */
.shots-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
.car-nav{display:flex;gap:10px}
.car-btn{
  width:42px;height:42px;border-radius:50%;
  border:1px solid #C9D8CF;background:#fff;color:var(--green);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background .18s ease,border-color .18s ease,transform .16s ease;
}
.car-btn:hover{background:var(--mint-soft);border-color:var(--mint);transform:translateY(-1px)}
.car-btn:active{transform:translateY(0)}
.car-btn:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
.car-btn[disabled]{opacity:.35;cursor:not-allowed;transform:none}

.shots-track{
  display:flex;gap:22px;margin-top:34px;
  overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:8px;scrollbar-width:thin;
}
.shots-track::-webkit-scrollbar{height:8px}
.shots-track::-webkit-scrollbar-thumb{background:#CBDDD2;border-radius:8px}
.shots-track::-webkit-scrollbar-track{background:transparent}
.shot-card{
  flex:0 0 clamp(260px,32%,380px);scroll-snap-align:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.shot-card.is-current{border-color:var(--mint);box-shadow:0 0 0 3px rgba(53,198,138,.16),var(--sh-1)}
.shot-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.shot-body{padding:16px 18px 20px}
.shot-body h3{font-size:16.5px}
.shot-body p{margin-top:6px;font-size:14px;color:var(--ink-2);line-height:1.72}
.dots{display:flex;gap:7px;align-items:center}
.dot-btn{
  width:22px;height:5px;border-radius:4px;border:0;background:#CFDDD4;cursor:pointer;
  transition:background .18s ease,width .18s ease;
}
.dot-btn:hover{background:#9FC7B4}
.dot-btn.is-active{background:var(--mint);width:34px}
.dot-btn:focus-visible{outline:2px solid var(--mint);outline-offset:3px}
@media (max-width:639px){
  .car-nav{display:none}
  .shot-card{flex:0 0 84%}
}

/* ---------- specs ---------- */
.spec-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:8px 30px;
}
.spec-row{
  display:grid;grid-template-columns:200px 1fr;gap:24px;
  padding:18px 0;border-bottom:1px solid var(--line);
}
.spec-row:last-child{border-bottom:0}
.spec-row dt{font-size:14.5px;font-weight:600;color:#2D3B35}
.spec-row dd{margin:0;font-size:15px;color:#41504A}
.spec-row dd .mono{font-weight:600;color:var(--green)}
.spec-note{
  margin-top:8px;font-size:13.5px;color:var(--ink-2);
}
.spec-side{
  background:linear-gradient(180deg,#0F2E28,#123C35);
  color:#E9F3EE;border-radius:var(--r-lg);padding:30px;
  box-shadow:0 16px 40px rgba(15,46,40,.20);
}
.spec-side h3{color:#fff;font-size:19px}
.spec-side p{color:#B9CEC5;font-size:14.5px;margin-top:10px;line-height:1.8}
.spec-side ul{margin-top:18px;display:grid;gap:11px}
.spec-side li{display:flex;gap:10px;font-size:14px;color:#D6E6DE}
.spec-side .ck2{
  width:18px;height:18px;border-radius:6px;background:rgba(53,198,138,.22);
  color:var(--mint);font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;margin-top:3px;
}
@media (max-width:1023px){
  .spec-row{grid-template-columns:1fr;gap:4px}
  .spec-panel{padding:6px 20px}
}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:36px}
.news-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(53,198,138,.55)}
.news-thumb{position:relative;overflow:hidden;background:var(--mint-soft)}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:16px 18px 20px;display:flex;flex-direction:column;flex:1 1 auto}
.news-title{
  font-size:16.5px;line-height:1.55;margin-top:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-desc{
  margin-top:8px;font-size:14px;color:var(--ink-2);line-height:1.72;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:#7C8A83;
}
.arrow-move{transition:transform .18s ease;display:inline-block}
.news-card:hover .arrow-move{transform:translateX(4px);color:var(--clay)}
.empty-state{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:10px;
  padding:52px 20px;border:1px dashed #C9D8CF;border-radius:var(--r-md);
  background:#fff;color:var(--ink-2);font-size:15px;text-align:center;
}
.empty-state .es-mark{
  width:44px;height:44px;border-radius:12px;background:var(--mint-soft);
  display:flex;align-items:center;justify-content:center;color:#137A54;font-size:18px;font-weight:700;
}
@media (max-width:1023px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:639px){.news-grid{grid-template-columns:1fr}}

/* ---------- quotes ---------- */
.quote-wall{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:36px}
.quote-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 24px 20px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.quote-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(53,198,138,.5)}
.quote-card.offset{margin-top:28px}
.quote-text{font-size:15.5px;color:#2F3D37;line-height:1.86}
.quote-foot{display:flex;align-items:center;gap:12px;margin-top:18px;padding-top:16px;border-top:1px dashed var(--line)}
.avatar{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:#0F2E28;background:var(--mint-soft);
  border:1px solid rgba(53,198,138,.3);
}
.avatar.b{background:#FDEAE4;color:#B8401F;border-color:rgba(242,106,75,.3)}
.avatar.c{background:#EDF0F9;color:#3B4C8A;border-color:#D6DDF3}
.quote-name{font-size:14px;font-weight:600;color:#22302B}
.quote-scene{font-size:12.5px;color:#7C8A83;margin-top:2px}
@media (max-width:1023px){
  .quote-wall{grid-template-columns:1fr;gap:18px}
  .quote-card.offset{margin-top:0}
}

/* ---------- download cta ---------- */
.dl-band{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#0F2E28 0%,#123C35 58%,#174B41 100%);
  border-radius:var(--r-lg);
  padding:52px 48px;
  color:#EAF4EF;
  box-shadow:0 20px 48px rgba(15,46,40,.22);
}
.dl-band::before{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,198,138,.28),transparent 68%);
}
.dl-band::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:6px;
  background:repeating-linear-gradient(90deg,var(--mint) 0 12px,transparent 12px 24px);
  opacity:.35;
}
.dl-grid{position:relative;display:grid;grid-template-columns:1.5fr 1fr;gap:40px;align-items:center}
.dl-band h2{color:#fff;font-size:clamp(23px,2.8vw,31px)}
.dl-band p{color:#B9CEC5;margin-top:12px;font-size:15.5px;max-width:560px}
.dl-meta{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:20px;font-size:13.5px;color:#A8C3B8}
.dl-actions{display:flex;flex-direction:column;gap:12px}
.dl-actions .btn-ghost{background:transparent;color:#E9F3EE;border-color:rgba(233,243,238,.34)}
.dl-actions .btn-ghost:hover{background:rgba(53,198,138,.16);border-color:var(--mint);color:#fff}
@media (max-width:1023px){
  .dl-grid{grid-template-columns:1fr;gap:28px}
  .dl-band{padding:38px 26px}
}
@media (max-width:639px){.dl-band{padding:32px 20px}}

/* ---------- faq ---------- */
.faq-list{margin-top:34px;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:center;justify-content:space-between;gap:20px;
  padding:20px 4px;font-size:16.5px;font-weight:600;color:#22302B;
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--green)}
.faq-item summary:focus-visible{outline:2px solid var(--mint);outline-offset:2px;border-radius:8px}
.faq-sign{
  width:26px;height:26px;flex:0 0 auto;border-radius:8px;
  border:1px solid var(--line);background:#fff;color:var(--green);
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;
  transition:transform .22s ease,background .18s ease,border-color .18s ease;
}
.faq-item[open] .faq-sign{transform:rotate(45deg);background:var(--mint-soft);border-color:var(--mint)}
.faq-answer{padding:0 4px 22px;color:#45534D;font-size:15.5px;line-height:1.9;max-width:840px}

/* ---------- footer ---------- */
.site-footer{background:var(--green-deep);color:#C9DCD4;margin-top:0}
.footer-main{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding:64px 0 44px;
}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-name small{color:#8FB0A4}
.footer-brand p{margin-top:16px;font-size:14px;color:#9EB9AE;line-height:1.8;max-width:280px}
.footer-col h4{font-size:14px;color:#fff;letter-spacing:.04em;margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:#AEC8BD;transition:color .18s ease}
.footer-col a:hover{color:var(--mint)}
.footer-col a:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:4px}
.footer-bottom{
  border-top:1px solid rgba(233,243,238,.14);
  padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FB0A4;
}
.footer-bottom a{color:#9EB9AE}
.footer-bottom a:hover{color:var(--mint)}
@media (max-width:1023px){
  .footer-main{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
}
@media (max-width:639px){
  .footer-main{grid-template-columns:1fr;gap:28px}
}

/* ---------- misc ---------- */
.section-sand{background:var(--sand-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--green);
  border-bottom:1px solid transparent;
  transition:border-color .18s ease,color .18s ease;
}
.text-link:hover{border-bottom-color:var(--mint);color:#0E6B4A}
.text-link:hover .arrow-move{transform:translateX(4px)}
.text-link:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:4px}

/* roulang page: article */
:root{
  --ink:#16211E;
  --ink-2:#5E6B66;
  --ink-3:#8B9993;
  --brand:#123C35;
  --brand-dark:#0F2E28;
  --brand-soft:#E7F1EC;
  --accent:#35C68A;
  --accent-deep:#1E9E70;
  --cta:#F26A4B;
  --cta-deep:#D9553A;
  --sand:#F7F3EA;
  --card:#FFFFFF;
  --line:#DDE5DD;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-xs:8px;
  --shadow-1:0 8px 24px rgba(18,33,30,.06);
  --shadow-2:0 12px 32px rgba(18,33,30,.10);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;padding:0;font-family:var(--font);background:var(--sand);color:var(--ink);font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;}
img{display:block;max-width:100%;height:auto;border:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}
@media(max-width:1024px){.wrap{padding:0 24px;}}
@media(max-width:640px){.wrap{padding:0 20px;}}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:80;background:rgba(247,243,234,.94);border-bottom:1px solid transparent;transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;}
.site-header.is-scrolled{background:rgba(255,255,255,.96);border-bottom-color:var(--line);box-shadow:0 6px 18px rgba(18,33,30,.07);}
.header-inner{display:flex;align-items:center;gap:22px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:30px;height:30px;border-radius:9px;background:var(--brand);display:grid;place-items:center;box-shadow:0 5px 14px rgba(18,60,53,.22);}
.brand-mark i{display:block;width:12px;height:12px;border-radius:3px;background:var(--accent);box-shadow:6px -6px 0 -3px #F26A4B,-6px 6px 0 -3px #F2C14E;}
.brand-name{display:flex;flex-direction:column;line-height:1.16;font-weight:700;font-size:16px;letter-spacing:-.01em;color:var(--brand);}
.brand-name small{font-weight:400;font-size:11px;letter-spacing:.03em;color:var(--ink-2);}
.nav-main{display:flex;align-items:center;gap:2px;flex:1;margin-left:6px;}
.nav-link{position:relative;padding:8px 12px;font-size:14.5px;font-weight:500;color:#2C3A35;border-radius:10px;transition:color .18s ease,background .18s ease;}
.nav-link:hover{color:var(--brand);background:#EAF2ED;}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;background:var(--accent);}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{display:flex;align-items:center;gap:8px;height:38px;width:236px;padding:0 10px 0 12px;background:#fff;border:1px solid var(--line);border-radius:999px;transition:border-color .18s ease,box-shadow .18s ease;}
.search-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(53,198,138,.18);}
.search-box svg{flex-shrink:0;color:var(--ink-3);}
.search-box input{width:100%;border:0;outline:none;background:transparent;font-size:13.5px;color:var(--ink);}
.search-box input::placeholder{color:#9AA8A2;}
.search-box kbd{font-family:var(--font);font-size:11px;line-height:1;color:var(--ink-3);border:1px solid var(--line);border-radius:5px;padding:3px 5px;background:#F6F8F6;white-space:nowrap;}
.menu-toggle{display:none;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--brand);transition:background .18s ease,border-color .18s ease;}
.menu-toggle:hover{background:var(--brand-soft);border-color:#BFE6D4;}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:10px 0 18px;box-shadow:0 14px 24px rgba(18,33,30,.08);}
.mobile-drawer.is-open{display:block;}
.mobile-nav{display:flex;flex-direction:column;}
.mobile-nav a{padding:13px 2px;font-size:15px;color:#2C3A35;border-bottom:1px solid #EEF3EF;}
.mobile-nav a:last-child{border-bottom:0;}
.mobile-nav a.is-active{color:var(--brand);font-weight:600;}
.mobile-cta{display:inline-flex;width:100%;margin-top:14px;}

/* ============ 按钮 ============ */
.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;background:var(--cta);color:#fff;border-radius:var(--radius-sm);font-size:15px;font-weight:600;letter-spacing:.01em;box-shadow:0 6px 16px rgba(242,106,75,.24);transition:background .16s ease,transform .16s ease,box-shadow .16s ease;}
.btn-primary:hover{background:var(--cta-deep);transform:translateY(-1px);box-shadow:0 10px 22px rgba(242,106,75,.28);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(242,106,75,.22);}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;background:#fff;color:var(--brand);border:1px solid var(--brand);border-radius:var(--radius-sm);font-size:15px;font-weight:600;transition:background .16s ease,transform .16s ease,border-color .16s ease;}
.btn-ghost:hover{background:var(--brand-soft);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;box-shadow:none;}
.btn-sm:hover{box-shadow:0 6px 14px rgba(242,106,75,.2);}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand);border-bottom:1px solid transparent;padding-bottom:2px;transition:color .16s ease,border-color .16s ease;}
.btn-text:hover{color:var(--accent-deep);border-bottom-color:var(--accent-deep);}
.btn-text .arr{transition:transform .16s ease;}
.btn-text:hover .arr{transform:translateX(3px);}

/* ============ 文章头部 ============ */
.article-top{background:linear-gradient(180deg,#FBF8F1 0%,#F7F3EA 100%);border-bottom:1px solid var(--line);padding:24px 0 40px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);}
.breadcrumb a{color:var(--ink-2);transition:color .16s ease;}
.breadcrumb a:hover{color:var(--accent-deep);}
.breadcrumb .sep{color:#B9C5BF;}
.breadcrumb .current{color:var(--ink);max-width:64ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-head{max-width:920px;margin-top:22px;}
.badge{display:inline-flex;align-items:center;gap:6px;height:27px;padding:0 11px;font-size:12.5px;font-weight:600;color:#17734F;background:#E4F6ED;border:1px solid #BEEAD6;border-radius:var(--radius-xs);}
.article-title{font-size:clamp(27px,3.4vw,43px);line-height:1.3;font-weight:700;letter-spacing:-.015em;margin-top:14px;color:var(--brand);}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;margin-top:18px;font-size:13.5px;color:var(--ink-2);}
.meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-item svg{color:var(--accent-deep);flex-shrink:0;}

/* ============ 正文区 ============ */
.main-block{padding:52px 0 76px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 292px;gap:48px;align-items:start;}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);padding:34px 38px 40px;}
.article-cover{border-radius:var(--radius-md);overflow:hidden;margin-bottom:30px;border:1px solid var(--line);}
.article-cover img{width:100%;aspect-ratio:16/8;object-fit:cover;}
.article-body{max-width:820px;font-size:16.5px;line-height:1.9;color:var(--ink);word-break:break-word;}
.article-body p{margin-top:18px;}
.article-body h2{font-size:clamp(22px,2.2vw,28px);line-height:1.4;font-weight:700;letter-spacing:-.01em;color:var(--brand);margin-top:44px;padding-left:14px;border-left:4px solid var(--accent);}
.article-body h3{font-size:20px;line-height:1.5;font-weight:700;color:var(--brand);margin-top:32px;}
.article-body h4{font-size:17px;font-weight:700;color:var(--brand);margin-top:24px;}
.article-body ul,.article-body ol{padding-left:24px;margin-top:16px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-top:8px;}
.article-body li::marker{color:var(--accent-deep);}
.article-body blockquote{margin:28px 0;padding:16px 22px;background:var(--brand-soft);border-left:4px solid var(--accent);border-radius:var(--radius-sm);color:#22443A;}
.article-body blockquote p{margin:0;}
.article-body img{border-radius:var(--radius-md);box-shadow:var(--shadow-1);margin:26px 0;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-2);text-align:center;margin-top:10px;}
.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:12px 14px;text-align:left;}
.article-body th{background:#F1F6F2;font-weight:600;color:var(--brand);}
.article-body tr:nth-child(even) td{background:#FAFCFA;}
.article-body code{font-family:var(--mono);font-size:14px;background:#EFF4F0;border-radius:6px;padding:2px 6px;color:#1B4A41;}
.article-body pre{background:var(--brand-dark);color:#E8F3ED;border-radius:var(--radius-sm);padding:18px 20px;overflow:auto;margin:26px 0;font-size:14px;line-height:1.7;}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body a{color:var(--accent-deep);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.article-body a:hover{color:#157A57;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}
.article-empty{display:flex;flex-direction:column;align-items:center;text-align:center;gap:14px;padding:44px 20px;}
.article-empty .empty-icon{width:56px;height:56px;border-radius:16px;background:var(--brand-soft);display:grid;place-items:center;color:var(--brand);}
.article-empty h2{font-size:22px;font-weight:700;color:var(--brand);}
.article-empty p{color:var(--ink-2);font-size:15px;max-width:46ch;}
.article-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;margin-top:38px;padding-top:24px;border-top:1px solid var(--line);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 10px;font-size:12.5px;color:#2C4A42;background:#F0F6F2;border:1px solid var(--line);border-radius:var(--radius-xs);}
.copy-btn{display:inline-flex;align-items:center;gap:7px;height:36px;padding:0 14px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:13.5px;color:var(--brand);transition:background .16s ease,border-color .16s ease;}
.copy-btn:hover{background:var(--brand-soft);border-color:#BFE6D4;}
.copy-tip{font-size:12.5px;color:var(--accent-deep);opacity:0;transition:opacity .2s ease;}
.copy-tip.is-on{opacity:1;}

/* ============ 侧栏 ============ */
.article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:94px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-1);padding:20px 20px 22px;}
.side-card h3{font-size:15px;font-weight:700;color:var(--brand);margin-bottom:14px;letter-spacing:.01em;}
.side-meta{display:flex;flex-direction:column;gap:10px;}
.side-meta-row{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;font-size:13.5px;}
.side-meta-row span:first-child{color:var(--ink-2);}
.side-meta-row span:last-child{color:var(--ink);font-weight:500;text-align:right;}
.side-list{display:flex;flex-direction:column;gap:6px;}
.side-link{display:flex;gap:10px;align-items:flex-start;padding:10px 10px;border-radius:10px;border:1px solid transparent;transition:background .16s ease,border-color .16s ease,transform .16s ease;}
.side-link:hover{background:#F4F9F6;border-color:#CFE6DA;transform:translateX(2px);}
.side-thumb{width:56px;height:42px;border-radius:8px;object-fit:cover;flex-shrink:0;border:1px solid var(--line);}
.side-link-text{display:flex;flex-direction:column;gap:2px;}
.side-link-text strong{font-size:13.5px;font-weight:600;color:var(--ink);line-height:1.45;}
.side-link-text em{font-style:normal;font-size:12px;color:var(--ink-3);}

/* ============ 相关推荐 ============ */
.related-block{padding:0 0 76px;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:24px;}
.section-head h2{font-size:clamp(21px,2.2vw,26px);font-weight:700;letter-spacing:-.01em;color:var(--brand);}
.section-head p{font-size:14px;color:var(--ink-2);}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.rel-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#BFE6D4;}
.rel-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.rel-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1;}
.rel-body .tag{height:23px;font-size:11.5px;align-self:flex-start;}
.rel-body h3{font-size:16px;font-weight:600;line-height:1.55;color:var(--ink);}
.rel-body p{font-size:13.5px;color:var(--ink-2);line-height:1.75;}
.rel-foot{margin-top:auto;padding-top:10px;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--ink-3);}
.rel-card:hover .rel-arrow{transform:translateX(3px);color:var(--accent-deep);}
.rel-arrow{transition:transform .16s ease,color .16s ease;}

/* ============ 转化带 ============ */
.cta-band{background:var(--brand);border-radius:var(--radius-lg);padding:38px 40px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;color:#EAF4EE;}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;letter-spacing:-.01em;color:#F4FAF6;}
.cta-band p{font-size:14px;color:#B8CFC5;margin-top:8px;max-width:52ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-band .btn-ghost{background:transparent;border-color:#3F6A5E;color:#E7F4EC;}
.cta-band .btn-ghost:hover{background:#1B4A41;border-color:var(--accent);color:#fff;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-dark);color:#C9DCD4;padding:64px 0 0;margin-top:0;}
.footer-main{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px;}
.footer-brand p{font-size:14px;line-height:1.85;color:#A9C2B8;margin-top:14px;max-width:40ch;}
.site-footer .brand-name{color:#F1F7F3;}
.site-footer .brand-name small{color:#9DB6AA;}
.site-footer .brand-mark{background:#1B4A41;box-shadow:none;}
.footer-col h4{font-size:14px;font-weight:600;color:#F1F7F3;letter-spacing:.02em;margin-bottom:14px;}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:#A9C2B8;transition:color .16s ease;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:#8FA9A0;}

/* ============ 响应式 ============ */
@media(max-width:1024px){
  .nav-main{display:none;}
  .search-box{display:none;}
  .menu-toggle{display:inline-flex;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:34px;}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap;gap:18px;}
  .article-side .side-card{flex:1 1 300px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .panel{padding:28px 26px 32px;}
  .footer-main{grid-template-columns:1.6fr 1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1 / -1;}
}
@media(max-width:768px){
  .header-inner{height:66px;gap:14px;}
  .brand-name{font-size:14.5px;}
  .brand-name small{font-size:10.5px;}
  .article-top{padding:18px 0 30px;}
  .breadcrumb{font-size:12.5px;}
  .breadcrumb .current{white-space:normal;}
  .main-block{padding:36px 0 56px;}
  .panel{padding:22px 20px 26px;border-radius:var(--radius-md);}
  .article-body{font-size:16px;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:28px 24px;}
  .cta-band .btn-primary,.cta-band .btn-ghost{width:100%;}
  .cta-actions{width:100%;}
  .footer-main{grid-template-columns:1fr 1fr;gap:26px 20px;}
}
@media(max-width:520px){
  .wrap{padding:0 18px;}
  .article-title{font-size:26px;}
  .article-meta{gap:8px 14px;font-size:13px;}
  .footer-main{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .article-side{flex-direction:column;}
  .side-card{width:100%;}
}

/* roulang page: category1 */
:root{
    --ink:#123C35;
    --ink-deep:#0F2E28;
    --green:#35C68A;
    --green-soft:#E7F7EF;
    --orange:#F26A4B;
    --orange-deep:#DD5738;
    --sand:#F7F3EA;
    --card:#FFFFFF;
    --text:#16211E;
    --muted:#5E6B66;
    --line:#DDE5DD;
    --radius-xl:20px;
    --radius-lg:16px;
    --radius:12px;
    --radius-sm:8px;
    --shadow-sm:0 8px 24px rgba(18,33,30,.06);
    --shadow-md:0 12px 32px rgba(18,33,30,.10);
    --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans SC","Segoe UI",system-ui,sans-serif;
    --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:var(--font);
    font-size:16.5px;
    line-height:1.88;
    color:var(--text);
    background:var(--sand);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;height:auto;display:block}
  a{color:inherit;text-decoration:none}
  button,input,textarea,select{font:inherit;color:inherit}
  ul,ol{margin:0;padding:0}
  h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.012em;color:var(--text)}
  p{margin:0}
  :focus-visible{outline:2px solid var(--green);outline-offset:3px;border-radius:6px}
  ::selection{background:rgba(53,198,138,.28)}

  .wrap{width:100%;max-width:1240px;margin-inline:auto;padding-inline:32px}
  @media (max-width:1024px){.wrap{padding-inline:24px}}
  @media (max-width:640px){.wrap{padding-inline:20px}}

  /* ============ 头部导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(247,243,234,.94);
    border-bottom:1px solid transparent;
    transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
  }
  .site-header.is-scrolled{
    background:rgba(247,243,234,.985);
    border-bottom-color:var(--line);
    box-shadow:0 8px 20px rgba(18,33,30,.05);
  }
  .header-inner{display:flex;align-items:center;gap:26px;min-height:72px}
  .brand{display:inline-flex;align-items:center;gap:11px;flex:none}
  .brand-mark{
    width:32px;height:32px;border-radius:10px;background:var(--ink);
    display:grid;place-items:center;flex:none;
    box-shadow:inset 0 0 0 1px rgba(53,198,138,.28);
  }
  .brand-mark i{
    width:13px;height:13px;border-radius:3px;background:var(--green);display:block;
    box-shadow:5px 5px 0 0 rgba(53,198,138,.45);
  }
  .brand-name{display:flex;flex-direction:column;line-height:1.2;font-weight:700;font-size:16.5px;color:var(--ink)}
  .brand-name small{font-weight:400;font-size:11.5px;color:var(--muted);letter-spacing:.02em;margin-top:2px}

  .nav-main{display:flex;align-items:center;gap:26px;flex:1;justify-content:center}
  .nav-link{
    position:relative;font-size:14.5px;color:var(--muted);
    padding:8px 2px;font-weight:500;transition:color .2s ease;white-space:nowrap;
  }
  .nav-link::after{
    content:"";position:absolute;left:50%;bottom:0;height:2px;width:0;background:var(--green);
    border-radius:2px;transform:translateX(-50%);transition:width .22s ease;
  }
  .nav-link:hover{color:var(--ink)}
  .nav-link:hover::after{width:100%}
  .nav-link.is-active{color:var(--ink);font-weight:600}
  .nav-link.is-active::after{width:18px}

  .header-actions{display:flex;align-items:center;gap:12px;flex:none;margin-left:auto}
  .cmd-search{
    display:flex;align-items:center;gap:8px;
    height:40px;padding:0 10px 0 12px;min-width:236px;
    background:#fff;border:1px solid var(--line);border-radius:999px;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .cmd-search:focus-within{border-color:var(--green);box-shadow:0 0 0 3px rgba(53,198,138,.18)}
  .cmd-search svg{flex:none;color:#93A29B}
  .cmd-search input{
    border:0;outline:0;background:transparent;width:100%;font-size:13.5px;color:var(--text);
  }
  .cmd-search input::placeholder{color:#98A69F}
  .cmd-search kbd{
    flex:none;font-family:var(--mono);font-size:11px;color:#7E8D86;
    background:#F2F6F2;border:1px solid var(--line);border-radius:5px;
    padding:1px 5px;line-height:1.5;
  }
  .header-cta{height:40px;padding:0 16px;font-size:14px;border-radius:10px}

  .menu-toggle{
    display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--line);
    background:#fff;align-items:center;justify-content:center;cursor:pointer;
    transition:border-color .2s ease,background .2s ease;
  }
  .menu-toggle:hover{border-color:var(--green);background:var(--green-soft)}
  .menu-toggle span{display:block;width:17px;height:2px;background:var(--ink);border-radius:2px;position:relative}
  .menu-toggle span::before,.menu-toggle span::after{
    content:"";position:absolute;left:0;width:17px;height:2px;background:var(--ink);border-radius:2px;
  }
  .menu-toggle span::before{top:-6px}
  .menu-toggle span::after{top:6px}

  .mobile-drawer{display:none;background:#fff;border-top:1px solid var(--line);padding:16px 0 22px}
  .mobile-drawer.is-open{display:block}
  .drawer-nav{display:grid;gap:4px;margin-bottom:14px}
  .drawer-nav a{
    display:flex;align-items:center;justify-content:space-between;
    padding:12px 14px;border-radius:10px;font-size:15px;color:var(--text);
    transition:background .2s ease,color .2s ease;
  }
  .drawer-nav a:hover{background:var(--green-soft);color:var(--ink)}
  .drawer-nav a.is-active{background:var(--green-soft);color:var(--ink);font-weight:600}
  .drawer-nav a span{color:var(--green);font-size:13px}
  .drawer-cta{width:100%;justify-content:center}

  @media (max-width:1023px){
    .nav-main{display:none}
    .cmd-search{display:none}
    .header-cta{display:none}
    .menu-toggle{display:inline-flex}
  }

  /* ============ 按钮系统 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:46px;padding:0 22px;border-radius:11px;border:1px solid transparent;
    font-size:15px;font-weight:600;cursor:pointer;text-align:center;
    transition:background .2s ease,color .2s ease,border-color .2s ease,transform .15s ease,box-shadow .2s ease;
  }
  .btn svg{flex:none;transition:transform .2s ease}
  .btn-primary{background:var(--orange);color:#fff;box-shadow:0 8px 18px rgba(242,106,75,.26)}
  .btn-primary:hover{background:var(--orange-deep);transform:translateY(-1px);box-shadow:0 12px 24px rgba(242,106,75,.32)}
  .btn-primary:hover svg{transform:translateX(2px)}
  .btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(242,106,75,.24)}
  .btn-outline{background:#fff;color:var(--ink);border-color:var(--line)}
  .btn-outline:hover{background:var(--green-soft);border-color:var(--green);transform:translateY(-1px)}
  .btn-outline:hover svg{transform:translateX(2px)}
  .btn-light{background:#F3F8F4;color:var(--ink-deep);border-color:rgba(255,255,255,.22)}
  .btn-light:hover{background:#fff;color:var(--ink-deep);transform:translateY(-1px)}
  .btn-ghost{background:transparent;color:var(--ink);border-color:rgba(18,60,53,.16)}
  .btn-ghost:hover{background:rgba(53,198,138,.14);border-color:var(--green)}
  .btn:disabled,.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
  .btn-sm{min-height:40px;padding:0 16px;font-size:14px;border-radius:10px}

  .text-link{
    display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--ink);
    border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease;
  }
  .text-link:hover{color:#1F8C64;border-bottom-color:var(--green)}
  .text-link svg{transition:transform .2s ease}
  .text-link:hover svg{transform:translateX(3px)}

  /* ============ 通用徽章 / 标签 ============ */
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    background:#fff;border:1px solid var(--line);border-radius:8px;
    padding:6px 12px;font-size:13px;font-weight:600;color:var(--ink);
    box-shadow:var(--shadow-sm);
  }
  .eyebrow i{width:7px;height:7px;border-radius:2px;background:var(--green);display:block}
  .tag{
    display:inline-flex;align-items:center;gap:5px;
    font-size:12.5px;font-weight:600;color:#1D7A57;
    background:var(--green-soft);border:1px solid rgba(53,198,138,.3);
    border-radius:6px;padding:2px 8px;
  }
  .tag-warm{color:#B8442A;background:#FDEEE9;border-color:rgba(242,106,75,.28)}

  /* ============ Hero ============ */
  .hero{position:relative;overflow:hidden;padding:52px 0 76px;background:linear-gradient(180deg,#F9F6EF 0%,#F7F3EA 62%,#F7F3EA 100%)}
  .hero::before{
    content:"";position:absolute;inset:0;
    background-image:radial-gradient(rgba(18,60,53,.10) 1px,transparent 1px);
    background-size:22px 22px;opacity:.55;
    -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 74%);
    mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 74%);
    pointer-events:none;
  }
  .hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);gap:52px;align-items:start}
  .hero h1{
    font-size:52px;line-height:1.24;margin:20px 0 18px;color:var(--ink);letter-spacing:-.02em;
  }
  .hero h1 em{font-style:normal;color:#1F8C64}
  .hero-sub{font-size:16.5px;line-height:1.9;color:var(--muted);max-width:34em}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
  .hero-meta{
    list-style:none;display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;
    padding-top:20px;border-top:1px dashed var(--line);
  }
  .hero-meta li{display:flex;align-items:center;gap:7px;font-size:13.5px;color:var(--muted)}
  .hero-meta li b{color:var(--ink);font-weight:600;font-variant-numeric:tabular-nums}
  .hero-meta li i{width:6px;height:6px;border-radius:50%;background:var(--green);display:block;flex:none}

  /* 版本信息卡 */
  .version-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-xl);
    box-shadow:var(--shadow-md);overflow:hidden;
  }
  .version-card-head{
    background:var(--ink);color:#E9F4EC;padding:20px 24px;
    display:flex;align-items:flex-end;justify-content:space-between;gap:16px;
  }
  .version-card-head span{font-size:13px;color:#A9C9B8;display:block;letter-spacing:.04em}
  .version-card-head strong{
    font-family:var(--mono);font-size:27px;line-height:1.2;color:#fff;font-weight:700;letter-spacing:-.01em;
  }
  .version-list{padding:6px 24px 4px}
  .version-list > div{
    display:flex;align-items:baseline;justify-content:space-between;gap:14px;
    padding:13px 0;border-bottom:1px dashed var(--line);font-size:14.5px;
  }
  .version-list > div:last-child{border-bottom:0}
  .version-list dt{color:var(--muted);flex:none}
  .version-list dd{margin:0;font-weight:600;color:var(--text);text-align:right;font-variant-numeric:tabular-nums}
  .version-card-foot{padding:16px 24px 24px}
  .version-card-foot .btn{width:100%}
  .version-note{margin-top:12px;font-size:12.5px;line-height:1.7;color:#7C8A84;text-align:center}

  /* ============ 通用板块 ============ */
  .section{padding:76px 0}
  .section-tight{padding:56px 0}
  .section-head{max-width:720px;margin-bottom:40px}
  .section-head h2{font-size:31px;line-height:1.35;color:var(--ink);margin-bottom:14px}
  .section-head p{font-size:16px;color:var(--muted)}
  .section-kicker{
    display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
    color:#1F8C64;letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px;
  }
  .section-kicker::before{content:"";width:20px;height:2px;background:var(--green);border-radius:2px}

  /* 下载前确认条 */
  .checkbar{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-xl);
    box-shadow:var(--shadow-sm);padding:8px 4px;
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  }
  .checkbar-item{
    display:flex;align-items:flex-start;gap:12px;padding:20px 22px;
    border-right:1px dashed var(--line);
  }
  .checkbar-item:last-child{border-right:0}
  .checkbar-item .dot{
    width:26px;height:26px;border-radius:8px;background:var(--green-soft);
    display:grid;place-items:center;flex:none;margin-top:3px;color:#1F8C64;
  }
  .checkbar-item h3{font-size:15px;color:var(--ink);margin-bottom:4px}
  .checkbar-item p{font-size:13.5px;line-height:1.75;color:var(--muted)}
  @media (max-width:1023px){
    .checkbar{grid-template-columns:repeat(2,minmax(0,1fr))}
    .checkbar-item:nth-child(2){border-right:0}
    .checkbar-item:nth-child(1),.checkbar-item:nth-child(2){border-bottom:1px dashed var(--line)}
  }
  @media (max-width:600px){
    .checkbar{grid-template-columns:1fr}
    .checkbar-item{border-right:0;border-bottom:1px dashed var(--line)}
    .checkbar-item:last-child{border-bottom:0}
  }

  /* ============ 系统要求 ============ */
  .req-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
  .req-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
    box-shadow:var(--shadow-sm);padding:24px 26px;
    transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
  }
  .req-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:rgba(53,198,138,.55)}
  .req-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px}
  .req-os{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--ink)}
  .req-os .os-badge{
    width:34px;height:34px;border-radius:10px;background:var(--ink);color:#EAF7EF;
    display:grid;place-items:center;font-size:12.5px;font-weight:700;letter-spacing:.02em;flex:none;
  }
  .req-list{list-style:none;margin-top:12px}
  .req-list li{
    display:flex;align-items:baseline;justify-content:space-between;gap:14px;
    padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px;
  }
  .req-list li:last-child{border-bottom:0}
  .req-list li span{color:var(--muted);flex:none}
  .req-list li strong{font-weight:600;color:var(--text);text-align:right;font-variant-numeric:tabular-nums}

  /* ============ 安装步骤时间线 ============ */
  .steps-layout{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:52px;align-items:start}
  .steps{list-style:none;position:relative}
  .steps li{position:relative;display:grid;grid-template-columns:56px minmax(0,1fr);gap:20px;padding-bottom:30px}
  .steps li:last-child{padding-bottom:0}
  .steps li:not(:last-child)::before{
    content:"";position:absolute;left:27px;top:58px;bottom:2px;width:2px;
    background:repeating-linear-gradient(180deg,rgba(53,198,138,.55) 0 6px,transparent 6px 12px);
  }
  .step-no{
    width:56px;height:56px;border-radius:16px;background:#fff;border:1px solid var(--line);
    display:grid;place-items:center;font-family:var(--mono);font-size:16px;font-weight:700;color:var(--ink);
    box-shadow:var(--shadow-sm);flex:none;
  }
  .steps li h3{font-size:19px;color:var(--ink);margin:10px 0 8px}
  .steps li p{font-size:15px;color:var(--muted);line-height:1.85}
  .step-tip{
    display:inline-flex;align-items:center;gap:6px;margin-top:10px;
    font-size:13px;color:#1F8C64;background:var(--green-soft);
    border-radius:6px;padding:3px 9px;font-weight:600;
  }
  .steps-media{
    position:relative;border-radius:var(--radius-xl);overflow:hidden;
    border:1px solid var(--line);box-shadow:var(--shadow-md);background:#fff;
  }
  .steps-media img{width:100%;aspect-ratio:4/3.1;object-fit:cover}
  .steps-media figcaption{
    position:absolute;left:16px;right:16px;bottom:16px;
    background:rgba(255,255,255,.94);border:1px solid var(--line);
    border-radius:12px;padding:12px 14px;font-size:13px;line-height:1.7;color:var(--muted);
    box-shadow:var(--shadow-sm);
  }
  .steps-media figcaption b{color:var(--ink)}

  /* ============ 下载 CTA ============ */
  .cta-band{
    position:relative;overflow:hidden;border-radius:var(--radius-xl);
    background:var(--ink-deep);color:#E7F2EB;padding:48px 44px;
  }
  .cta-band::after{
    content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
    background:radial-gradient(circle,rgba(53,198,138,.28),transparent 68%);
    pointer-events:none;
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);
    background-size:20px 20px;opacity:.5;pointer-events:none;
  }
  .cta-inner{position:relative;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:44px;align-items:center}
  .cta-band h2{font-size:30px;line-height:1.36;color:#fff;margin-bottom:14px}
  .cta-band p{font-size:15.5px;color:#A9C6B8;line-height:1.85;max-width:36em}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
  .cta-meta{
    list-style:none;display:grid;gap:10px;margin-top:26px;padding-top:22px;
    border-top:1px solid rgba(255,255,255,.14);
  }
  .cta-meta li{display:flex;justify-content:space-between;gap:14px;font-size:13.5px;color:#9DBBAE}
  .cta-meta li b{color:#EAF7EF;font-weight:600;font-variant-numeric:tabular-nums}
  .cta-figure{
    border-radius:16px;overflow:hidden;border:1px solid rgba(255,255,255,.16);
    box-shadow:0 18px 40px rgba(0,0,0,.28);
  }
  .cta-figure img{width:100%;aspect-ratio:16/11;object-fit:cover}

  /* ============ FAQ ============ */
  .faq-wrap{max-width:880px}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-item:first-child{border-top:1px solid var(--line)}
  .faq-item summary{
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    list-style:none;cursor:pointer;padding:20px 4px;font-size:16.5px;font-weight:600;color:var(--ink);
    transition:color .2s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{color:#1F8C64}
  .faq-icon{
    position:relative;width:26px;height:26px;border-radius:8px;flex:none;
    background:var(--green-soft);border:1px solid rgba(53,198,138,.32);
    transition:transform .25s ease,background .25s ease;
  }
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;left:50%;top:50%;background:#1F8C64;border-radius:2px;
    transform:translate(-50%,-50%);
  }
  .faq-icon::before{width:11px;height:2px}
  .faq-icon::after{width:2px;height:11px;transition:opacity .2s ease}
  .faq-item[open] .faq-icon{background:#D6F2E4;transform:rotate(180deg)}
  .faq-item[open] .faq-icon::after{opacity:0}
  .faq-body{padding:0 44px 22px 4px;font-size:15.3px;color:var(--muted);line-height:1.9}

  /* ============ 返回入口 ============ */
  .back-links{
    display:flex;flex-wrap:wrap;gap:14px 30px;align-items:center;
    margin-top:36px;padding-top:26px;border-top:1px dashed var(--line);
  }

  /* ============ 页脚 ============ */
  .site-footer{background:var(--ink-deep);color:#D8E4DC;padding:60px 0 0;margin-top:20px}
  .footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:46px}
  .footer-brand .brand-name{color:#F1F8F3;font-size:17px}
  .footer-brand .brand-name small{color:#8FAD9F}
  .footer-brand .brand-mark{background:#123C35;box-shadow:inset 0 0 0 1px rgba(53,198,138,.42)}
  .footer-brand p{color:#9FB6AB;font-size:14px;line-height:1.85;margin-top:16px;max-width:30em}
  .footer-col h4{font-size:14px;color:#FFFFFF;margin:0 0 16px;letter-spacing:.05em;font-weight:700}
  .footer-col ul{list-style:none;display:grid;gap:11px}
  .footer-col a{font-size:14px;color:#A9C0B4;transition:color .2s ease}
  .footer-col a:hover{color:var(--green)}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.12);padding:20px 0 30px;
    display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
    font-size:13px;color:#8EA79B;
  }

  /* ============ 响应式 ============ */
  @media (max-width:1100px){
    .hero-grid{gap:38px}
    .hero h1{font-size:46px}
  }
  @media (max-width:1023px){
    .hero{padding:40px 0 56px}
    .hero-grid{grid-template-columns:1fr;gap:34px}
    .hero h1{font-size:40px}
    .section{padding:60px 0}
    .section-tight{padding:46px 0}
    .section-head h2{font-size:27px}
    .steps-layout{grid-template-columns:1fr;gap:36px}
    .cta-inner{grid-template-columns:1fr;gap:30px}
    .cta-band{padding:38px 30px}
    .footer-main{grid-template-columns:1fr 1fr;gap:34px}
  }
  @media (max-width:767px){
    body{font-size:16px}
    .req-grid{grid-template-columns:1fr}
    .hero h1{font-size:34px;line-height:1.3}
    .hero-sub{font-size:15.5px}
    .hero-actions .btn{width:100%}
    .section-head h2{font-size:23px}
    .cta-band h2{font-size:23px}
    .cta-actions .btn{width:100%}
    .faq-item summary{font-size:15.5px;padding:17px 2px}
    .faq-body{padding-right:8px;font-size:14.8px}
    .cta-band{padding:32px 22px;border-radius:16px}
    .version-card-head{padding:18px 20px}
    .version-list{padding:4px 20px}
    .version-card-foot{padding:14px 20px 20px}
    .steps li{grid-template-columns:46px minmax(0,1fr);gap:14px}
    .step-no{width:46px;height:46px;border-radius:13px;font-size:14px}
    .steps li:not(:last-child)::before{left:22px;top:50px}
    .steps li h3{font-size:17px;margin-top:6px}
    .steps-media figcaption{position:static;left:auto;right:auto;bottom:auto;border-radius:0;border:0;border-top:1px solid var(--line)}
  }
  @media (max-width:600px){
    .footer-main{grid-template-columns:1fr;gap:30px}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
    .back-links{flex-direction:column;align-items:flex-start;gap:12px}
  }

/* roulang page: category2 */
:root{
    --pine:#123C35;
    --pine-deep:#0F2E28;
    --yuzu:#35C68A;
    --clay:#F26A4B;
    --sand:#F7F3EA;
    --card:#FFFFFF;
    --ink:#16211E;
    --muted:#5E6B66;
    --line:#DDE5DD;
    --line-soft:#EAF0EA;
    --r-lg:20px;
    --r-md:16px;
    --r-sm:11px;
    --shadow-1:0 8px 24px rgba(18,33,30,.06);
    --shadow-2:0 12px 32px rgba(18,33,30,.10);
    --font: "PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans SC","Hiragino Sans GB",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:var(--font);
    font-size:16px;
    line-height:1.88;
    color:var(--ink);
    background:var(--sand);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:var(--pine);text-decoration:none;transition:color .2s ease}
  button{font-family:inherit;cursor:pointer}
  h1,h2,h3,h4{color:var(--pine);letter-spacing:-.01em}
  ::selection{background:rgba(53,198,138,.28);color:var(--pine-deep)}
  :focus-visible{outline:2px solid var(--yuzu);outline-offset:2px;border-radius:6px}

  .wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:var(--r-sm);
    font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
    transition:transform .18s ease,background .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease;
    white-space:nowrap;
  }
  .btn-primary{background:var(--clay);color:#fff;box-shadow:0 6px 16px rgba(242,106,75,.24)}
  .btn-primary:hover{background:#e2573a;transform:translateY(-1px);box-shadow:0 10px 22px rgba(242,106,75,.30)}
  .btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(242,106,75,.24)}
  .btn-secondary{background:#fff;color:var(--pine);border-color:#C8D6CC}
  .btn-secondary:hover{background:rgba(53,198,138,.12);border-color:var(--yuzu);transform:translateY(-1px)}
  .btn-sm{height:38px;padding:0 15px;font-size:13.5px;border-radius:9px}
  .btn-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14.5px;color:#1F8F63;padding:4px 0;border-bottom:1px solid transparent;transition:border-color .2s,gap .2s}
  .btn-arrow:hover{border-color:#1F8F63;gap:10px}
  .link-plain{color:var(--muted);font-weight:500}
  .link-plain:hover{color:#1F8F63}

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(247,243,234,.86);
    backdrop-filter:saturate(140%) blur(10px);
    -webkit-backdrop-filter:saturate(140%) blur(10px);
    border-bottom:1px solid transparent;
    transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .site-header.is-scrolled{background:rgba(247,243,234,.97);border-bottom-color:var(--line);box-shadow:0 2px 14px rgba(18,33,30,.05)}
  .header-row{display:flex;align-items:center;gap:18px;height:72px}

  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .brand-mark{
    position:relative;width:32px;height:32px;border-radius:9px;
    background:var(--pine);display:inline-block;flex:0 0 auto;
    box-shadow:inset 0 0 0 1px rgba(255,255,255,.08);
  }
  .brand-mark i{
    position:absolute;left:8px;top:8px;width:9px;height:9px;
    background:var(--yuzu);border-radius:2px;
  }
  .brand-mark::before,.brand-mark::after{
    content:"";position:absolute;width:5px;height:5px;border-radius:1.5px;background:rgba(255,255,255,.55);
  }
  .brand-mark::before{right:8px;top:8px}
  .brand-mark::after{right:8px;bottom:8px}
  .brand-name{
    display:flex;flex-direction:column;line-height:1.18;
    font-size:15px;font-weight:700;color:var(--pine);letter-spacing:-.01em;
  }
  .brand-name small{font-size:10.5px;font-weight:500;color:var(--muted);letter-spacing:.04em;margin-top:2px}

  .nav-main{display:none}
  .nav-link{
    position:relative;padding:8px 12px;border-radius:8px;
    font-size:14.5px;color:var(--muted);font-weight:500;white-space:nowrap;
    transition:color .18s,background .18s;
  }
  .nav-link:hover{color:var(--pine);background:rgba(53,198,138,.10)}
  .nav-link.is-active{color:var(--pine);font-weight:700}
  .nav-link.is-active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
    background:var(--yuzu);border-radius:2px;
  }

  .header-tools{display:flex;align-items:center;gap:10px;margin-left:auto}
  .cmd-search{
    display:none;align-items:center;gap:8px;
    height:38px;padding:0 10px 0 12px;min-width:212px;
    background:#fff;border:1px solid var(--line);border-radius:999px;
    transition:border-color .18s,box-shadow .18s;
  }
  .cmd-search:focus-within{border-color:var(--yuzu);box-shadow:0 0 0 3px rgba(53,198,138,.18)}
  .cmd-search svg{flex:0 0 auto;color:var(--muted)}
  .cmd-search input{
    border:0;outline:0;background:transparent;width:100%;
    font-size:13.5px;color:var(--ink);font-family:inherit;
  }
  .cmd-search input::placeholder{color:#9AABA3}
  .kbd{
    flex:0 0 auto;font-size:10.5px;line-height:1;padding:3px 6px;border-radius:5px;
    border:1px solid var(--line);color:var(--muted);background:var(--sand);
    font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  }
  .menu-btn{
    display:inline-grid;place-items:center;width:40px;height:40px;border-radius:10px;
    background:#fff;border:1px solid var(--line);color:var(--pine);
    transition:background .18s,border-color .18s;
  }
  .menu-btn:hover{background:rgba(53,198,138,.12);border-color:var(--yuzu)}

  .mobile-nav{display:none;border-top:1px solid var(--line);background:#fff;padding:10px 0 18px}
  .mobile-nav.is-open{display:block}
  .mobile-nav a{
    display:flex;align-items:center;justify-content:space-between;
    padding:13px 0;font-size:15px;color:var(--ink);font-weight:500;
    border-bottom:1px solid var(--line-soft);
  }
  .mobile-nav a:last-child{border-bottom:0}
  .mobile-nav a.is-active{color:#1F8F63;font-weight:700}

  @media (min-width:1024px){
    .nav-main{display:flex;align-items:center;gap:2px;margin-left:16px}
    .cmd-search{display:flex}
    .menu-btn{display:none}
    .mobile-nav{display:none !important}
  }
  @media (max-width:1023px){
    .cmd-search{display:none}
  }
  @media (max-width:560px){
    .header-cta{display:none}
    .header-row{height:64px}
  }

  /* ---------- Hero ---------- */
  .hero{position:relative;padding:52px 0 76px;overflow:hidden}
  .hero::before{
    content:"";position:absolute;inset:-120px -10% auto auto;width:520px;height:520px;
    background:radial-gradient(circle at center,rgba(53,198,138,.16),rgba(53,198,138,0) 68%);
    pointer-events:none;
  }
  .crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px;flex-wrap:wrap}
  .crumbs a{color:var(--muted)}
  .crumbs a:hover{color:#1F8F63}
  .crumbs span{color:#A9B7B0}

  .hero-grid{display:grid;grid-template-columns:1fr;gap:44px;align-items:center;position:relative}
  .badge{
    display:inline-flex;align-items:center;gap:7px;
    font-size:13px;font-weight:700;color:#177A55;
    background:rgba(53,198,138,.16);border:1px solid rgba(53,198,138,.32);
    padding:5px 11px;border-radius:8px;letter-spacing:.01em;
  }
  .badge .dot{width:6px;height:6px;border-radius:50%;background:var(--yuzu);display:inline-block}
  .hero h1{
    font-size:clamp(32px,4.3vw,52px);
    line-height:1.2;font-weight:800;letter-spacing:-.02em;
    margin:18px 0 18px;color:var(--pine);
  }
  .hero h1 em{font-style:normal;color:#1F8F63}
  .hero-sub{font-size:17px;line-height:1.9;color:var(--muted);max-width:600px;margin:0 0 28px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
  .hero-meta{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13.5px;color:var(--muted)}
  .hero-meta span{display:inline-flex;align-items:center;gap:8px}
  .hero-meta b{color:var(--pine);font-weight:700}

  .hero-visual{position:relative}
  .hero-shot{
    border-radius:var(--r-lg);overflow:hidden;background:#fff;
    border:1px solid var(--line);box-shadow:0 18px 44px rgba(18,33,30,.13);
  }
  .hero-shot img{width:100%;aspect-ratio:4/3;object-fit:cover}
  .hero-chip{
    position:absolute;display:inline-flex;align-items:center;gap:8px;
    background:#fff;border:1px solid var(--line);border-radius:12px;
    padding:10px 14px;font-size:13px;font-weight:600;color:var(--pine);
    box-shadow:var(--shadow-1);
  }
  .chip-1{top:-14px;left:-14px}
  .chip-2{bottom:-16px;right:-10px;color:#1F8F63}
  .chip-2 i{width:7px;height:7px;border-radius:50%;background:var(--clay);display:inline-block}

  @media (min-width:1024px){
    .hero-grid{grid-template-columns:1.12fr .88fr;gap:56px}
  }
  @media (max-width:640px){
    .chip-1{left:6px;top:6px;padding:8px 11px;font-size:12px}
    .chip-2{right:6px;bottom:6px;padding:8px 11px;font-size:12px}
    .hero-actions .btn{width:100%}
  }

  /* ---------- 通用板块 ---------- */
  .section{padding:80px 0}
  .section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .section-head{max-width:740px;margin-bottom:36px}
  .eyebrow{
    display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.06em;
    color:#177A55;background:rgba(53,198,138,.14);border-radius:7px;padding:5px 10px;margin-bottom:14px;
  }
  .section-head h2{font-size:clamp(25px,3vw,32px);line-height:1.32;font-weight:700;margin:0 0 12px}
  .section-lead{color:var(--muted);font-size:16px;margin:0}
  @media (max-width:768px){
    .section{padding:48px 0}
    .wrap{padding:0 20px}
    .hero{padding:34px 0 56px}
  }
  @media (min-width:769px) and (max-width:1023px){
    .wrap{padding:0 24px}
  }

  /* ---------- Bento ---------- */
  .bento{display:grid;grid-template-columns:1fr;gap:20px}
  .bento-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
    padding:26px;box-shadow:var(--shadow-1);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
    display:flex;flex-direction:column;
  }
  .bento-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#BFE8D4}
  .fc-icon{
    width:42px;height:42px;border-radius:11px;display:grid;place-items:center;
    background:rgba(53,198,138,.14);color:#177A55;margin-bottom:16px;flex:0 0 auto;
  }
  .bento-card h3{font-size:20px;line-height:1.4;font-weight:700;margin:0 0 10px}
  .bento-card p{margin:0;color:var(--muted);font-size:15.5px;line-height:1.85}
  .fc-path{
    margin-top:auto;padding-top:16px;font-size:13.5px;font-weight:600;color:#177A55;
    display:inline-flex;align-items:center;gap:7px;
  }
  .fc-path::before{content:"";width:14px;height:1.5px;background:#35C68A;border-radius:2px}
  .mini-progress{margin:18px 0 4px;display:grid;gap:12px}
  .mini-progress .row{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);gap:12px}
  .mini-progress .bar{position:relative;height:6px;border-radius:99px;background:#EDF3EE;overflow:hidden;margin-top:6px}
  .mini-progress .bar i{position:absolute;left:0;top:0;bottom:0;border-radius:99px;background:var(--yuzu)}
  .mini-progress .bar i.alt{background:#8FD9BC}
  .mini-progress .bar i.soft{background:#C9E7DA}

  @media (min-width:768px){
    .bento{grid-template-columns:repeat(2,1fr)}
    .bento-card.span-2{grid-column:span 2}
  }
  @media (min-width:1024px){
    .bento{grid-template-columns:repeat(3,1fr);gap:20px}
    .bento-card.span-2{grid-column:span 2}
    .bento-card.tall{grid-row:span 2}
  }

  /* ---------- 截图横条 ---------- */
  .shots-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:30px}
  .shot-nav{display:none;gap:8px}
  .shot-arrow{
    width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
    background:#fff;border:1px solid #C8D6CC;color:var(--pine);
    transition:background .18s,border-color .18s,transform .18s;
  }
  .shot-arrow:hover{background:rgba(53,198,138,.14);border-color:var(--yuzu);transform:translateY(-1px)}
  .shot-arrow:active{transform:translateY(0)}
  .shot-track{
    display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
    padding:4px 4px 16px;scrollbar-width:thin;
  }
  .shot-track::-webkit-scrollbar{height:6px}
  .shot-track::-webkit-scrollbar-track{background:transparent}
  .shot-track::-webkit-scrollbar-thumb{background:#CFDED4;border-radius:99px}
  .shot-card{
    flex:0 0 min(360px,82%);scroll-snap-align:start;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
    overflow:hidden;box-shadow:var(--shadow-1);
    transition:transform .2s,box-shadow .2s,border-color .2s;
  }
  .shot-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#BFE8D4}
  .shot-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
  .shot-body{padding:18px 20px 22px}
  .shot-body h3{font-size:17px;font-weight:700;margin:0 0 8px}
  .shot-body p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.8}
  @media (min-width:768px){
    .shot-nav{display:flex}
    .shot-card{flex:0 0 340px}
  }
  @media (min-width:1024px){
    .shot-card{flex:0 0 372px}
  }

  /* ---------- 步骤 ---------- */
  .steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr;gap:20px}
  .step{
    position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
    padding:26px 24px;box-shadow:var(--shadow-1);
    transition:transform .2s,box-shadow .2s,border-color .2s;
  }
  .step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#BFE8D4}
  .step-num{
    display:inline-grid;place-items:center;width:38px;height:38px;border-radius:10px;
    background:var(--pine);color:#fff;font-weight:700;font-size:14px;
    font-variant-numeric:tabular-nums;margin-bottom:16px;letter-spacing:.02em;
  }
  .step h3{font-size:18px;line-height:1.45;font-weight:700;margin:0 0 10px}
  .step p{margin:0;font-size:15px;color:var(--muted);line-height:1.85}
  @media (min-width:768px){.steps{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr)}}

  /* ---------- FAQ ---------- */
  .faq-wrap{display:grid;grid-template-columns:1fr;gap:36px}
  .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:center;justify-content:space-between;gap:16px;
    padding:20px 0;font-size:17px;font-weight:600;color:var(--pine);
    transition:color .18s;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary::marker{content:""}
  .faq-item summary:hover{color:#1F8F63}
  .faq-item summary::after{
    content:"+";flex:0 0 auto;font-size:20px;line-height:1;color:#1F8F63;
    transition:transform .22s ease;font-weight:500;
  }
  .faq-item[open] summary::after{transform:rotate(45deg)}
  .faq-body{padding:0 0 22px;max-width:760px}
  .faq-body p{margin:0;color:var(--muted);font-size:15.5px;line-height:1.9}

  /* ---------- 相关入口 ---------- */
  .related{display:grid;grid-template-columns:1fr;gap:20px}
  .rel-card{
    display:flex;flex-direction:column;gap:8px;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
    padding:22px 24px;box-shadow:var(--shadow-1);
    transition:transform .2s,box-shadow .2s,border-color .2s;
  }
  .rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#BFE8D4}
  .rel-card h3{font-size:17px;font-weight:700;margin:0;display:flex;align-items:center;gap:8px}
  .rel-card h3 svg{color:#1F8F63;flex:0 0 auto}
  .rel-card p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.8}
  .rel-card .more{margin-top:6px;font-size:13.5px;font-weight:600;color:#1F8F63;display:inline-flex;align-items:center;gap:6px;transition:gap .2s}
  .rel-card:hover .more{gap:10px}
  @media (min-width:768px){.related{grid-template-columns:repeat(3,1fr)}}

  /* ---------- CTA ---------- */
  .cta-band{background:var(--pine-deep);color:#EAF3EE;padding:64px 0;position:relative;overflow:hidden}
  .cta-band::before{
    content:"";position:absolute;right:-80px;top:-80px;width:360px;height:360px;border-radius:50%;
    background:radial-gradient(circle at center,rgba(53,198,138,.22),rgba(53,198,138,0) 70%);
  }
  .cta-inner{display:grid;grid-template-columns:1fr;gap:28px;align-items:center;position:relative}
  .cta-inner h2{color:#fff;font-size:clamp(24px,2.8vw,30px);line-height:1.35;margin:0 0 12px}
  .cta-inner p{margin:0;color:#B7CEC2;font-size:15.5px;line-height:1.85;max-width:620px}
  .cta-meta{margin-top:14px !important;font-size:13px !important;color:#8FAB9D !important}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px}
  .btn-ghost-light{
    background:transparent;color:#DCEAE2;border-color:rgba(255,255,255,.28);
  }
  .btn-ghost-light:hover{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.5);transform:translateY(-1px);color:#fff}
  @media (min-width:1024px){
    .cta-inner{grid-template-columns:1.35fr .65fr;gap:48px}
    .cta-actions{justify-content:flex-end}
  }
  @media (max-width:640px){
    .cta-actions .btn{width:100%}
    .cta-band{padding:48px 0}
  }

  /* ---------- Footer ---------- */
  .site-footer{background:var(--pine-deep);color:#E8F0EA;padding:64px 0 0}
  .footer-main{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:44px}
  .footer-brand p{color:#A9C0B5;font-size:14.5px;line-height:1.85;margin:14px 0 0;max-width:360px}
  .site-footer .brand-name{color:#fff}
  .site-footer .brand-name small{color:#9DB8AC}
  .site-footer .brand-mark{background:#1D5048}
  .footer-col h4{color:#fff;font-size:14px;font-weight:700;margin:0 0 14px;letter-spacing:.02em}
  .footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
  .footer-col a{color:#B9CEC3;font-size:14px}
  .footer-col a:hover{color:var(--yuzu)}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.12);
    padding:18px 0;display:flex;flex-wrap:wrap;gap:8px 24px;
    justify-content:space-between;font-size:13px;color:#93ADA0;
  }
  @media (min-width:768px){
    .footer-main{grid-template-columns:1fr 1fr;gap:36px 40px}
  }
  @media (min-width:1024px){
    .footer-main{grid-template-columns:1.6fr 1fr 1fr 1fr}
  }

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

/* roulang page: category3 */
:root{
  --brand:#123C35;
  --brand-deep:#0F2E28;
  --mint:#35C68A;
  --clay:#F26A4B;
  --sand:#F7F3EA;
  --card:#FFFFFF;
  --ink:#16211E;
  --muted:#5E6B66;
  --line:#DDE5DD;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow-1:0 8px 24px rgba(18,33,30,.06);
  --shadow-2:0 12px 32px rgba(18,33,30,.10);
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--ink);
  background:var(--sand);
  font-size:16.5px;
  line-height:1.88;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;padding:0;}
ul,ol{list-style:none;}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px;border-radius:8px;}

.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.wrap{padding:0 24px;}}
@media (min-width:1024px){.wrap{padding:0 32px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,243,234,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 6px 20px rgba(18,33,30,.07);
  background:rgba(247,243,234,.98);
}
.header-inner{display:flex;align-items:center;gap:18px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:32px;height:32px;border-radius:9px;flex:none;
  background:linear-gradient(140deg,#123C35,#1F5F4F);
  display:flex;align-items:center;justify-content:center;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.08);
}
.brand-mark i{
  width:6px;height:6px;background:var(--mint);border-radius:2px;
  box-shadow:9px 0 0 var(--mint),0 9px 0 var(--clay),9px 9px 0 rgba(255,255,255,.72);
  transform:translate(-4px,-4px);
}
.brand-name{font-size:16px;font-weight:700;color:var(--brand);line-height:1.15;letter-spacing:-.01em;}
.brand-name small{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.02em;}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:10px;}
.nav-link{
  position:relative;font-size:14.5px;color:#3D4A46;
  padding:8px 12px;border-radius:10px;
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--brand);background:rgba(53,198,138,.10);}
.nav-link:active{background:rgba(53,198,138,.18);}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--mint);
}
.header-tools{display:flex;align-items:center;gap:10px;margin-left:auto;}
.command-search{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 10px 0 12px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.command-search:focus-within{border-color:var(--mint);box-shadow:0 0 0 3px rgba(53,198,138,.18);}
.command-search svg{width:16px;height:16px;color:var(--muted);flex:none;}
.command-search input{
  width:132px;border:0;background:transparent;outline:none;
  font-size:13.5px;color:var(--ink);
}
.command-search input::placeholder{color:#93A29C;}
.command-search kbd{
  font-family:var(--sans);font-size:11px;color:var(--muted);
  background:#F1F5F1;border:1px solid var(--line);border-radius:6px;
  padding:1px 6px;line-height:1.6;flex:none;
}
.menu-toggle{
  display:none;align-items:center;gap:6px;
  height:40px;padding:0 14px;border-radius:10px;
  background:#fff;border:1px solid var(--line);
  font-size:14px;color:var(--brand);cursor:pointer;
  transition:background .2s ease,border-color .2s ease;
}
.menu-toggle:hover{background:#EAF7F0;border-color:rgba(53,198,138,.55);}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .drawer-list{display:flex;flex-direction:column;padding:10px 20px 18px;}
.mobile-drawer a{
  padding:13px 8px;font-size:15px;color:#33413D;
  border-bottom:1px solid #EDF2ED;
}
.mobile-drawer a:last-child{border-bottom:0;}
.mobile-drawer a.is-active{color:var(--brand);font-weight:600;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 20px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.btn-primary{background:var(--clay);color:#fff;box-shadow:0 6px 18px rgba(242,106,75,.26);}
.btn-primary:hover{background:#E2573A;transform:translateY(-1px);box-shadow:0 10px 24px rgba(242,106,75,.30);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(242,106,75,.24);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line);}
.btn-ghost:hover{background:#EAF7F0;border-color:rgba(53,198,138,.55);}
.btn-ghost:active{background:#DDF2E7;}
.btn-sm{height:38px;padding:0 14px;font-size:14px;border-radius:10px;}
.btn:disabled,.btn[aria-disabled="true"]{
  background:#EEF2EE;color:#9AA6A1;border-color:#E3EAE3;
  box-shadow:none;cursor:not-allowed;transform:none;
}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--brand);
  border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease;
}
.link-arrow svg{width:16px;height:16px;transition:transform .2s ease;}
.link-arrow:hover{color:#1F7A5C;border-bottom-color:rgba(53,198,138,.7);}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- hero ---------- */
.hero{
  padding:52px 0 62px;
  background:
    radial-gradient(1100px 380px at 82% -12%, rgba(53,198,138,.16), transparent 62%),
    radial-gradient(rgba(18,60,53,.055) 1px, transparent 1px);
  background-size:auto,22px 22px;
}
.hero-grid{display:grid;grid-template-columns:1fr;gap:38px;align-items:center;}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.06fr .94fr;gap:52px;}}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 12px;border-radius:8px;
  background:rgba(53,198,138,.14);color:#1B6B50;
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mint);}
.hero-title{
  margin-top:18px;
  font-size:clamp(32px,5.2vw,50px);
  line-height:1.2;letter-spacing:-.02em;font-weight:700;color:var(--brand);
}
@media (min-width:1024px){.hero-title{font-size:50px;}}
.hero-lead{margin-top:18px;color:var(--muted);font-size:16.5px;line-height:1.9;max-width:580px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 16px;margin-top:26px;}
.hero-meta li{font-size:13.5px;color:var(--muted);}
.hero-meta li + li{padding-left:16px;border-left:1px solid var(--line);}
@media (max-width:520px){
  .hero-meta li + li{padding-left:0;border-left:0;}
  .hero-meta{flex-direction:column;gap:6px;}
}
.hero-visual{position:relative;border-radius:var(--r-lg);}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);
  border:1px solid rgba(18,60,53,.10);
  box-shadow:var(--shadow-2);
}
.float-card{
  position:absolute;display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:9px 13px;font-size:13px;font-weight:600;color:var(--brand);
  box-shadow:var(--shadow-1);
}
.float-a{left:-14px;bottom:26px;}
.float-b{right:-10px;top:22px;color:#1B6B50;}
.dot{width:7px;height:7px;border-radius:50%;background:var(--mint);flex:none;}
@media (max-width:767px){
  .float-a{left:10px;bottom:10px;font-size:12px;padding:7px 10px;}
  .float-b{display:none;}
}

/* ---------- trust strip ---------- */
.trust-strip-wrap{padding-bottom:8px;}
.trust-strip{
  display:grid;grid-template-columns:1fr;gap:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.trust-strip li{
  position:relative;padding:18px 22px 18px 44px;
  font-size:14.5px;color:#3D4A46;border-bottom:1px solid #EDF2ED;
}
.trust-strip li:last-child{border-bottom:0;}
.trust-strip li::before{
  content:"";position:absolute;left:22px;top:50%;
  width:9px;height:9px;border-radius:3px;background:var(--mint);
  transform:translateY(-50%) rotate(45deg);
}
@media (min-width:640px){
  .trust-strip{grid-template-columns:1fr 1fr;}
  .trust-strip li:nth-child(odd){border-right:1px solid #EDF2ED;}
  .trust-strip li:nth-child(3){border-bottom:0;}
}
@media (min-width:1024px){
  .trust-strip{grid-template-columns:repeat(4,1fr);}
  .trust-strip li{border-bottom:0;border-right:1px solid #EDF2ED;}
  .trust-strip li:last-child{border-right:0;}
}

/* ---------- generic section ---------- */
.section{padding:64px 0;}
@media (min-width:1024px){.section{padding:88px 0;}}
.section-head{max-width:720px;}
.section-kicker{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;
  color:#1B6B50;text-transform:uppercase;
}
.section-title{
  margin-top:10px;font-size:clamp(24px,3.2vw,32px);
  line-height:1.3;letter-spacing:-.015em;font-weight:700;color:var(--brand);
}
.section-desc{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.88;}

/* ---------- bento ---------- */
.bento{display:grid;grid-template-columns:1fr;gap:20px;margin-top:34px;}
@media (min-width:1024px){.bento{grid-template-columns:repeat(12,1fr);}}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:rgba(53,198,138,.45);}
.card h3{font-size:20px;line-height:1.4;font-weight:700;color:var(--brand);letter-spacing:-.01em;}
.card p{margin-top:12px;font-size:15px;line-height:1.88;color:var(--muted);}
.bento-main{display:grid;grid-template-columns:1fr;gap:20px;align-items:center;}
@media (min-width:768px){.bento-main{grid-template-columns:1.15fr .85fr;}}
@media (min-width:1024px){.bento-main{grid-column:span 7;}}
.bento-main img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:12px;
  border:1px solid var(--line);
}
.bento-side{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:1024px){.bento-side{grid-column:span 5;}}
.check-list{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.check-list li{
  position:relative;padding-left:22px;font-size:14.5px;color:#3D4A46;line-height:1.8;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;
  width:11px;height:11px;border-radius:3px;
  background:rgba(53,198,138,.20);
  border:1.5px solid var(--mint);
}
.bento-wide{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.bento-wide{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.bento-wide{grid-column:span 12;}}

/* ---------- support entries ---------- */
.entry-grid{display:grid;grid-template-columns:1fr;gap:20px;margin-top:34px;}
@media (min-width:768px){.entry-grid{grid-template-columns:repeat(3,1fr);}}
.entry-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 24px;box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.entry-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);border-color:rgba(53,198,138,.55);}
.entry-icon{
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(53,198,138,.14);color:#1B6B50;
}
.entry-icon svg{width:22px;height:22px;}
.entry-card h3{margin-top:16px;font-size:19px;font-weight:700;color:var(--brand);line-height:1.4;}
.entry-card p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.85;flex:1;}
.entry-card .link-arrow{margin-top:18px;}

/* ---------- steps ---------- */
.steps-wrap{display:grid;grid-template-columns:1fr;gap:32px;margin-top:34px;}
@media (min-width:1024px){.steps-wrap{grid-template-columns:.85fr 1.15fr;gap:48px;}}
.steps-note{
  background:linear-gradient(160deg,#123C35,#1B5244);
  border-radius:var(--r-lg);padding:28px 26px;color:#E8F1EC;
  box-shadow:var(--shadow-2);
}
.steps-note h3{font-size:21px;line-height:1.45;color:#fff;font-weight:700;}
.steps-note p{margin-top:12px;font-size:14.5px;line-height:1.9;color:rgba(232,241,236,.78);}
.steps-note ul{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.steps-note li{
  position:relative;padding-left:20px;font-size:14px;color:rgba(232,241,236,.86);
}
.steps-note li::before{
  content:"";position:absolute;left:0;top:10px;width:8px;height:8px;
  border-radius:2px;background:var(--mint);
}
.timeline{position:relative;padding-left:34px;}
.timeline::before{
  content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,rgba(53,198,138,.55),rgba(53,198,138,.12));
}
.timeline li{position:relative;padding-bottom:26px;}
.timeline li:last-child{padding-bottom:0;}
.timeline li::before{
  content:"";position:absolute;left:-34px;top:6px;
  width:22px;height:22px;border-radius:50%;
  background:#fff;border:2px solid var(--mint);
  box-shadow:0 0 0 4px rgba(53,198,138,.12);
}
.timeline .step-no{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.08em;
  color:#1B6B50;
}
.timeline h4{margin-top:2px;font-size:17px;font-weight:700;color:var(--brand);line-height:1.5;}
.timeline p{margin-top:6px;font-size:14.5px;color:var(--muted);line-height:1.85;}

/* ---------- faq ---------- */
.faq-list{margin-top:30px;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:20px;
  padding:20px 4px;cursor:pointer;list-style:none;
  font-size:16.5px;font-weight:600;color:var(--brand);line-height:1.6;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:#1B6B50;}
.faq-item summary:focus-visible{outline:2px solid var(--mint);outline-offset:4px;}
.faq-icon{
  position:relative;flex:none;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--line);background:#fff;
  transition:background .25s ease,border-color .25s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform .25s ease,opacity .25s ease;
}
.faq-icon::before{left:5px;right:5px;top:10px;height:2px;}
.faq-icon::after{top:5px;bottom:5px;left:10px;width:2px;}
details[open] .faq-icon{background:rgba(53,198,138,.14);border-color:rgba(53,198,138,.55);}
details[open] .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-body{padding:0 4px 22px;color:var(--muted);font-size:15px;line-height:1.9;max-width:860px;}

/* ---------- feedback form ---------- */
.feedback-wrap{
  display:grid;grid-template-columns:1fr;gap:26px;
  margin-top:34px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px;box-shadow:var(--shadow-1);
}
@media (min-width:1024px){
  .feedback-wrap{grid-template-columns:.8fr 1.2fr;gap:40px;padding:34px;}
}
.feedback-intro h3{font-size:21px;font-weight:700;color:var(--brand);line-height:1.45;}
.feedback-intro p{margin-top:12px;font-size:14.5px;color:var(--muted);line-height:1.88;}
.feedback-intro ul{margin-top:18px;display:flex;flex-direction:column;gap:9px;}
.feedback-intro li{position:relative;padding-left:20px;font-size:14px;color:#3D4A46;}
.feedback-intro li::before{
  content:"";position:absolute;left:0;top:9px;width:9px;height:9px;
  border-radius:50%;background:rgba(53,198,138,.30);
  border:2px solid var(--mint);
}
.form-grid{display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:640px){.form-grid{grid-template-columns:1fr 1fr;}}
.field{display:flex;flex-direction:column;gap:7px;}
.field-full{grid-column:1 / -1;}
.field label{font-size:14px;font-weight:600;color:#2B3733;}
.field input,.field select,.field textarea{
  width:100%;background:#fff;border:1px solid var(--line);border-radius:10px;
  padding:0 14px;height:46px;font-size:15px;color:var(--ink);
  outline:none;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{height:126px;padding:12px 14px;line-height:1.75;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:#9AA6A1;font-size:14.5px;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--mint);box-shadow:0 0 0 3px rgba(53,198,138,.18);
}
.field input:disabled,.field select:disabled,.field textarea:disabled{
  background:#F3F6F3;color:#9AA6A1;cursor:not-allowed;
}
.field.has-error input,.field.has-error select,.field.has-error textarea{
  border-color:#E2573A;box-shadow:0 0 0 3px rgba(242,106,75,.14);
}
.field .hint{font-size:12.5px;color:var(--muted);}
.field .hint.is-error{color:#C4472C;font-weight:600;}
.form-actions{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:4px;}
.form-actions .btn{min-width:170px;}
.form-note{font-size:13px;color:var(--muted);}
.form-status{
  grid-column:1 / -1;display:none;padding:12px 16px;border-radius:10px;
  font-size:14px;line-height:1.7;
}
.form-status.is-success{
  display:block;background:rgba(53,198,138,.12);
  border:1px solid rgba(53,198,138,.45);color:#1B6B50;
}
@media (max-width:519px){
  .form-actions .btn{width:100%;}
}

/* ---------- return entries ---------- */
.return-bar{
  display:flex;flex-wrap:wrap;gap:14px 26px;align-items:center;justify-content:space-between;
  margin-top:44px;padding:22px 24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow-1);
}
.return-bar p{font-size:14.5px;color:var(--muted);}
.return-links{display:flex;flex-wrap:wrap;gap:18px;}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:#E8F1EC;padding:58px 0 0;margin-top:0;}
.footer-main{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:768px){.footer-main{grid-template-columns:1fr 1fr;gap:36px;}}
@media (min-width:1024px){.footer-main{grid-template-columns:1.4fr .8fr .9fr .9fr;gap:40px;}}
.site-footer .brand-name{color:#fff;font-size:16px;}
.site-footer .brand-name small{color:rgba(232,241,236,.62);}
.site-footer .brand-mark{background:linear-gradient(140deg,#1E5B4C,#2C7F66);}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(232,241,236,.72);max-width:360px;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;letter-spacing:.04em;margin-bottom:14px;}
.footer-col ul li{line-height:2;}
.footer-col ul li a{
  font-size:14px;color:rgba(232,241,236,.72);
  transition:color .2s ease;
}
.footer-col ul li a:hover{color:var(--mint);}
.footer-col ul li a:focus-visible{outline:2px solid var(--mint);outline-offset:3px;}
.footer-bottom{
  display:flex;flex-direction:column;gap:8px;
  margin-top:44px;padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(232,241,236,.58);
}
@media (min-width:768px){
  .footer-bottom{flex-direction:row;justify-content:space-between;align-items:center;gap:16px;}
}

/* accents */
.eyebrow-line{display:flex;align-items:center;gap:12px;}
.eyebrow-line span.rule{height:1px;flex:1;background:var(--line);}