/* roulang page: index */
:root{
  --primary:#14584A;
  --primary-deep:#0E3F35;
  --accent:#D9694A;
  --bg:#FAF7F2;
  --bg-alt:#EDF3EF;
  --dark:#0E3F35;
  --text:#1B211E;
  --text-2:#5B6B64;
  --text-3:#8A968F;
  --line:#DCE5DF;
  --line-dark:rgba(255,255,255,.22);
  --r-card:16px;
  --r-img:20px;
  --r-btn:999px;
  --r-input:12px;
  --r-badge:6px;
  --sh1:0 1px 2px rgba(20,60,50,.06),0 8px 24px rgba(20,60,50,.06);
  --sh2:0 12px 32px rgba(20,60,50,.12);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --serif:"Source Han Serif SC","Songti SC",serif;
  --bs-body-bg:#FAF7F2;
  --bs-body-color:#1B211E;
  --bs-body-font-family:var(--font);
  --bs-border-radius:12px;
  --bs-gutter-x:24px;
  --bs-link-color:#14584A;
  --bs-link-hover-color:#0E3F35;
  --bs-primary:#14584A;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-deep)}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text)}
p{margin:0 0 .75em}
p:last-child{margin-bottom:0}
ul,ol{list-style:none;margin:0;padding:0}
button{font-family:inherit}
::selection{background:rgba(20,88,74,.16)}

.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:768px){
  .wrap{padding-left:32px;padding-right:32px}
}

/* ============ 按钮 ============ */
.btn{
  --bs-btn-padding-x:28px;
  --bs-btn-padding-y:0;
  --bs-btn-font-size:15.5px;
  --bs-btn-border-radius:999px;
  --bs-btn-bg:transparent;
  --bs-btn-border-color:transparent;
  --bs-btn-hover-bg:transparent;
  --bs-btn-hover-border-color:transparent;
  --bs-btn-active-bg:transparent;
  --bs-btn-active-border-color:transparent;
  --bs-btn-disabled-bg:transparent;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-btn);
  font-size:15.5px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-primary:hover,.btn-primary:focus{background:var(--primary-deep);border-color:var(--primary-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-ghost:hover,.btn-ghost:focus{background:var(--bg-alt);color:var(--primary-deep);border-color:var(--primary)}
.btn-light{background:#fff;color:var(--primary-deep);border-color:#fff}
.btn-light:hover,.btn-light:focus{background:#F2F6F3;color:var(--primary-deep);transform:translateY(-2px);box-shadow:var(--sh2)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost-light:hover,.btn-ghost-light:focus{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.btn:focus-visible,.icon-btn:focus-visible,.menu-toggle:focus-visible,.to-top:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(20,88,74,.35)}
.btn-sm{height:42px;padding:0 22px;font-size:15px}

/* ============ 导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1030;
  background:rgba(255,255,255,.16);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(20,60,50,.10);
  transition:background .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.site-header.is-scrolled{
  background:rgba(250,247,242,.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
  box-shadow:var(--sh1);
}
.nav-inner{
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
  height:76px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
}
@media (min-width:768px){.nav-inner{padding:0 32px}}
.brand{display:flex;flex-direction:column;line-height:1.15;color:var(--text);flex:0 0 auto}
.brand:hover{color:var(--text)}
.brand-main{font-size:18px;font-weight:700;letter-spacing:.4px}
.brand-sub{font-size:11.5px;letter-spacing:1.4px;color:var(--text-2);margin-top:2px}
.nav-links{display:flex;align-items:center;gap:2px;flex:1 1 auto;justify-content:center}
.nav-link{
  display:inline-block;
  padding:9px 14px;
  border-radius:999px;
  font-size:15px;
  color:var(--text-2);
  white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--primary);background:rgba(20,88,74,.07)}
.nav-link.active{color:var(--primary);font-weight:700;background:rgba(20,88,74,.09)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:42px;height:42px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid rgba(20,60,50,.16);
  background:rgba(255,255,255,.55);
  color:var(--text-2);
  cursor:pointer;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.icon-btn:hover{color:var(--primary);border-color:var(--primary);background:#fff}
.menu-toggle{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid rgba(20,60,50,.16);
  background:rgba(255,255,255,.6);
  color:var(--text);
  cursor:pointer;
}
.mobile-panel{
  display:none;
  background:rgba(250,247,242,.98);
  border-top:1px solid var(--line);
  padding:14px 20px 22px;
  box-shadow:var(--sh1);
}
.mobile-panel.open{display:block}
.mobile-panel a{
  display:block;
  padding:13px 4px;
  font-size:16px;
  color:var(--text);
  border-bottom:1px solid var(--line);
}
.mobile-panel a.active{color:var(--primary);font-weight:700}
.mobile-panel .m-cta{margin-top:18px;display:flex;gap:12px;flex-wrap:wrap}
@media (max-width:991.98px){
  .site-header{background:rgba(250,247,242,.92);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom-color:var(--line)}
}

/* ============ Hero ============ */
.hero{
  position:relative;
  overflow:hidden;
  padding:calc(76px + clamp(46px,6vw,80px)) 0 clamp(56px,7vw,96px);
  background:
    linear-gradient(158deg,rgba(20,88,74,.09) 0%,rgba(20,88,74,0) 52%),
    linear-gradient(0deg,rgba(217,105,74,.05) 0%,rgba(217,105,74,0) 40%),
    var(--bg);
  min-height:min(86vh,760px);
  display:flex;
  align-items:center;
}
.hero::after{
  content:"";
  position:absolute;
  top:-180px;right:-150px;
  width:540px;height:540px;
  border-radius:50%;
  border:1px solid rgba(20,88,74,.10);
  box-shadow:0 0 0 62px rgba(20,88,74,.035);
  pointer-events:none;
}
.hero::before{
  content:"";
  position:absolute;
  left:-120px;bottom:-160px;
  width:340px;height:340px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(20,88,74,.07) 0%,rgba(20,88,74,0) 70%);
  pointer-events:none;
}
.hero-grid{position:relative;z-index:2;align-items:center}
.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:1px;
  color:var(--primary);
  background:rgba(20,88,74,.09);
  border-radius:var(--r-badge);
  padding:6px 12px;
  margin-bottom:20px;
}
.hero h1{
  font-family:var(--serif);
  font-size:clamp(32px,4.6vw,52px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:0;
}
.hero-sub{
  margin:16px 0 0;
  font-size:17px;
  line-height:1.85;
  color:var(--text-2);
  max-width:560px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-trust{display:flex;flex-wrap:wrap;gap:22px;margin-top:38px}
.hero-trust li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2)}
.hero-trust svg{flex:0 0 auto;color:var(--primary)}
.hero-media{position:relative}
.hero-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-img);
  box-shadow:var(--sh2);
}
.hero-stat{
  position:absolute;
  left:-8px;bottom:-26px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:14px 20px;
  box-shadow:var(--sh1);
  min-width:210px;
}
.hero-stat b{display:block;font-size:22px;color:var(--primary);line-height:1.2}
.hero-stat span{font-size:13px;color:var(--text-3)}
@media (max-width:991.98px){
  .hero{min-height:0;padding-bottom:78px}
  .hero-media{margin-top:52px}
  .hero-stat{left:10px}
}

/* ============ 通用板块 ============ */
.section{padding:clamp(64px,8vw,112px) 0}
.section-alt{background:var(--bg-alt)}
.section-dark{background:var(--dark);position:relative;overflow:hidden;color:#F2F6F3}
.sec-head{max-width:760px;margin-bottom:clamp(32px,4.4vw,56px)}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head .eyebrow{margin-bottom:14px}
.sec-title{
  font-family:var(--serif);
  font-size:clamp(24px,3.2vw,36px);
  line-height:1.3;
  font-weight:700;
}
.sec-title::after{
  content:"";
  display:block;
  width:40px;height:3px;
  border-radius:2px;
  background:var(--primary);
  margin-top:14px;
}
.sec-head.center .sec-title::after{margin-left:auto;margin-right:auto}
.sec-lead{margin-top:16px;color:var(--text-2);font-size:16px;line-height:1.85}

/* ============ 痛点 ============ */
.pain-grid{margin-top:6px}
.pain-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px 24px;
  height:100%;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.pain-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:rgba(20,88,74,.28)}
.pain-icon{
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid rgba(20,88,74,.28);
  color:var(--primary);
  margin-bottom:18px;
}
.pain-card h3{font-size:18px;line-height:1.5;margin-bottom:8px}
.pain-card p{font-size:14.5px;color:var(--text-2);line-height:1.8;margin:0}
@media (min-width:992px){
  .pain-grid > div:nth-child(even){margin-top:34px}
}

/* ============ 解决方案 ============ */
.sol-row{padding:clamp(28px,3.6vw,48px) 0;align-items:center}
.sol-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-img);
  box-shadow:var(--sh1);
}
.sol-body{padding-left:0}
@media (min-width:992px){.sol-body{padding-left:28px}}
.chip{
  display:inline-block;
  font-size:13px;
  color:var(--primary);
  background:rgba(20,88,74,.09);
  border-radius:var(--r-badge);
  padding:5px 12px;
  margin-bottom:14px;
}
.sol-body h3{font-size:clamp(20px,2.3vw,24px);line-height:1.45;margin-bottom:12px}
.sol-body > p{color:var(--text-2);font-size:15.5px}
.sol-list{margin:18px 0 20px}
.sol-list li{
  position:relative;
  padding-left:26px;
  margin-bottom:10px;
  font-size:15.5px;
  color:var(--text-2);
  line-height:1.75;
}
.sol-list li::before{
  content:"";
  position:absolute;
  left:2px;top:11px;
  width:10px;height:6px;
  border-left:2px solid var(--primary);
  border-bottom:2px solid var(--primary);
  transform:rotate(-45deg);
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--primary);
}
.text-link svg{transition:transform .22s ease}
.text-link:hover svg{transform:translateX(4px)}
.text-link:hover{text-decoration:underline;text-underline-offset:4px}
@media (min-width:992px){
  .sol-row.reverse .sol-media{order:2}
  .sol-row.reverse .sol-body{order:1;padding-left:0;padding-right:28px}
}

/* ============ 成果指标 ============ */
.stats-band{
  background:var(--dark);
  color:#F2F6F3;
  position:relative;
  overflow:hidden;
}
.stats-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.35;
  pointer-events:none;
}
.stats-band::after{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:420px;height:420px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.10);
  pointer-events:none;
}
.stats-band .wrap{position:relative;z-index:2}
.stats-band .sec-title{color:#F2F6F3}
.stats-band .sec-title::after{background:var(--accent)}
.stats-band .sec-lead{color:#B9C9C2}
.stat-item{
  border-top:1px solid rgba(255,255,255,.22);
  padding-top:22px;
  margin-top:8px;
}
.stat-num{
  font-size:clamp(30px,4vw,44px);
  font-weight:700;
  line-height:1.15;
  color:#fff;
  font-variant-numeric:tabular-nums;
  letter-spacing:.5px;
}
.stat-num em{font-style:normal;font-size:.5em;margin-left:4px;color:#B9C9C2}
.stat-label{margin-top:8px;font-size:14.5px;color:#B9C9C2;line-height:1.7}

/* ============ 证言 ============ */
.testi-card{
  background:#fff;
  border:1px solid var(--line);
  border-left:3px solid var(--primary);
  border-radius:var(--r-card);
  padding:26px 24px;
  height:100%;
  transition:transform .24s ease,box-shadow .24s ease;
}
.testi-card:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.testi-quote{font-size:17px;line-height:1.85;color:var(--text);margin-bottom:20px}
.testi-user{display:flex;align-items:center;gap:14px}
.testi-user img{
  width:64px;height:64px;
  border-radius:50%;
  object-fit:cover;
  border:2px solid var(--bg-alt);
  flex:0 0 auto;
}
.testi-name{font-size:15.5px;font-weight:700}
.testi-role{font-size:13.5px;color:var(--text-3)}

/* ============ 资讯列表 ============ */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.news-grid{margin-top:8px}
.news-card{
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  height:100%;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:rgba(20,88,74,.30)}
.news-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto}
.news-badge{align-self:flex-start;font-size:12.5px;color:var(--primary);background:rgba(20,88,74,.09);border-radius:var(--r-badge);padding:4px 10px;margin-bottom:12px;line-height:1.5}
.news-title{font-size:17.5px;line-height:1.55;margin-bottom:10px}
.news-title a{color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-title a:hover{color:var(--primary)}
.news-excerpt{
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.75;
  margin:0 0 18px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line)}
.news-foot time{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.news-more{font-size:14px;font-weight:600;color:var(--primary)}
.news-more:hover{text-decoration:underline;text-underline-offset:4px}
.empty-state{
  background:#fff;
  border:1px dashed var(--line);
  border-radius:var(--r-card);
  padding:52px 24px;
  text-align:center;
  color:var(--text-2);
}
.empty-state svg{color:var(--text-3);margin-bottom:14px}
.empty-state p{margin-bottom:10px}

/* ============ FAQ ============ */
.faq-wrap{max-width:820px;margin:0 auto}
.accordion{
  --bs-accordion-border-width:0;
  --bs-accordion-border-radius:16px;
  --bs-accordion-inner-border-radius:16px;
  --bs-accordion-btn-padding-y:22px;
  --bs-accordion-btn-padding-x:24px;
  --bs-accordion-body-padding-x:24px;
  --bs-accordion-body-padding-y:0;
  --bs-accordion-btn-color:var(--text);
  --bs-accordion-btn-bg:#fff;
  --bs-accordion-active-color:var(--primary);
  --bs-accordion-active-bg:#fff;
  --bs-accordion-btn-focus-box-shadow:0 0 0 3px rgba(20,88,74,.18);
  --bs-accordion-color:var(--text-2);
  --bs-accordion-bg:#fff;
}
.accordion-item{
  background:#fff;
  border:1px solid var(--line)!important;
  border-radius:var(--r-card)!important;
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.accordion-item:hover{border-color:rgba(20,88,74,.30)!important;box-shadow:var(--sh1)}
.accordion-button{
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  color:var(--text);
  box-shadow:none!important;
}
.accordion-button:not(.collapsed){color:var(--primary);background:#fff}
.accordion-button::after{
  background-image:none;
  width:14px;height:14px;
  border-right:2px solid currentColor;
  border-bottom:2px solid currentColor;
  transform:rotate(45deg);
  transition:transform .25s ease;
  margin-top:-6px;
}
.accordion-button:not(.collapsed)::after{transform:rotate(-135deg);margin-top:4px}
.accordion-body{
  padding:0 24px 24px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--text-2);
}

/* ============ CTA + 表单 ============ */
.cta-band{
  background:linear-gradient(150deg,#0E3F35 0%,#14584A 62%,#15histor 100%);
  position:relative;
  overflow:hidden;
  color:#F2F6F3;
}
.cta-band{
  background:linear-gradient(150deg,#0E3F35 0%,#14584A 100%);
}
.cta-band::after{
  content:"";
  position:absolute;
  left:-140px;bottom:-180px;
  width:420px;height:420px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.12);
  pointer-events:none;
}
.cta-band .wrap{position:relative;z-index:2}
.cta-band .sec-title{color:#F2F6F3}
.cta-band .sec-title::after{background:var(--accent)}
.cta-band .sec-lead{color:#B9C9C2}
.form-card{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.22);
  border-radius:var(--r-card);
  padding:28px 24px;
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
}
.form-field{margin-bottom:18px}
.form-field label{display:block;font-size:14px;color:#B9C9C2;margin-bottom:8px}
.form-control{
  width:100%;
  height:48px;
  padding:0 16px;
  font-size:15.5px;
  color:#F2F6F3;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.22);
  border-radius:var(--r-input);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
textarea.form-control{height:auto;min-height:104px;padding:12px 16px;line-height:1.75;resize:vertical}
.form-control::placeholder{color:rgba(185,201,194,.65)}
.form-control:focus{
  outline:none;
  background:rgba(255,255,255,.12);
  border-color:#F2F6F3;
  box-shadow:0 0 0 3px rgba(255,255,255,.16);
}
.form-note{margin-top:14px;font-size:13px;color:#B9C9C2;line-height:1.7}
.form-tip{margin-top:14px;font-size:14px;color:#fff;display:none}
.form-tip.show{display:block}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#B9C9C2;padding-top:clamp(56px,7vw,84px)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:40px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px}}
.site-footer .brand{color:#F2F6F3}
.site-footer .brand:hover{color:#F2F6F3}
.site-footer .brand-sub{color:#B9C9C2}
.footer-text{font-size:14.5px;line-height:1.85;color:#B9C9C2;margin-top:18px;max-width:320px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.22);
  color:#B9C9C2;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.footer-social a:hover{color:#F2F6F3;border-color:#F2F6F3;background:rgba(255,255,255,.08)}
.footer-col h4{font-size:15.5px;color:#F2F6F3;margin-bottom:18px;font-weight:700}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14.5px;color:#B9C9C2}
.footer-col a:hover{color:#F2F6F3;text-decoration:underline;text-underline-offset:4px}
.footer-contact{font-size:14.5px;line-height:1.9}
.footer-contact b{color:#F2F6F3;font-weight:600}
.footer-sub{margin-top:18px;display:flex;gap:10px;flex-wrap:wrap}
.footer-sub input{
  flex:1 1 160px;
  height:46px;
  padding:0 14px;
  font-size:14.5px;
  color:#F2F6F3;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.22);
  border-radius:var(--r-input);
}
.footer-sub input::placeholder{color:rgba(185,201,194,.7)}
.footer-sub input:focus{outline:none;border-color:#F2F6F3;box-shadow:0 0 0 3px rgba(255,255,255,.14)}
.footer-sub button{
  height:46px;
  padding:0 20px;
  border-radius:var(--r-input);
  border:1px solid #fff;
  background:#fff;
  color:var(--primary-deep);
  font-weight:600;
  font-size:14.5px;
  cursor:pointer;
  transition:background .2s ease,color .2s ease;
}
.footer-sub button:hover{background:rgba(255,255,255,.88)}
.footer-bottom{
  margin-top:clamp(40px,5vw,64px);
  border-top:1px solid rgba(255,255,255,.15);
  padding:22px 0;
  font-size:13.5px;
  color:#B9C9C2;
}
.footer-bottom .wrap{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;
  right:24px;bottom:24px;
  width:46px;height:46px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:0;
  background:var(--primary);
  color:#fff;
  box-shadow:var(--sh2);
  opacity:0;visibility:hidden;
  transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background .2s ease;
  z-index:1040;
  cursor:pointer;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--primary-deep)}

@media (max-width:575.98px){
  .hero-cta .btn{width:100%}
  .hero-trust{gap:14px}
  .hero-trust li{font-size:13.5px}
  .hero-stat{position:static;margin-top:18px;left:auto;bottom:auto}
  .form-card{padding:22px 18px}
  .cta-band .btn{width:100%}
}

/* roulang page: article */
:root{
  --primary:#14584A;
  --primary-deep:#0E3F35;
  --accent:#D9694A;
  --bg:#FAF7F2;
  --bg-soft:#EDF3EF;
  --ink:#1B211E;
  --ink-2:#5B6B64;
  --ink-3:#8A968F;
  --line:#DCE5DF;
  --line-dark:rgba(255,255,255,.22);
  --on-dark:#F2F6F3;
  --on-dark-2:#B9C9C2;
  --r-card:16px;
  --r-img:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,60,50,.06),0 8px 24px rgba(20,60,50,.06);
  --sh-2:0 12px 32px rgba(20,60,50,.12);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-serif:"Source Han Serif SC","Songti SC",serif;
  --bs-body-font-family:var(--font);
  --bs-body-color:var(--ink);
  --bs-body-bg:var(--bg);
  --bs-border-color:var(--line);
  --bs-link-color:var(--primary);
  --bs-link-hover-color:var(--primary-deep);
  --bs-primary:#14584A;
  --bs-secondary:#5B6B64;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0}
p{margin:0 0 .9em}
ul,ol{margin:0}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.wrap{padding:0 32px}}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:15px}
.link-more svg{transition:transform .22s ease}
.link-more:hover{color:var(--primary-deep);text-decoration:underline;text-underline-offset:4px}
.link-more:hover svg{transform:translateX(4px)}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;height:76px;
  background:rgba(255,255,255,.10);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line-dark);
  transition:background .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.site-header.is-solid{
  background:rgba(250,247,242,.92);
  backdrop-filter:blur(12px) saturate(140%);
  -webkit-backdrop-filter:blur(12px) saturate(140%);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
}
.nav-inner{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;flex-direction:column;line-height:1.15;flex-shrink:0}
.brand-main{font-size:19px;font-weight:700;letter-spacing:.4px;color:#fff;transition:color .24s ease}
.brand-sub{font-size:12px;letter-spacing:1px;color:rgba(255,255,255,.78);transition:color .24s ease}
.site-header.is-solid .brand-main{color:var(--ink)}
.site-header.is-solid .brand-sub{color:var(--ink-3)}
.nav-links{align-items:center;gap:4px;margin:0 auto}
.nav-link{
  padding:9px 14px;border-radius:var(--r-pill);font-size:15px;font-weight:500;
  color:rgba(255,255,255,.86);white-space:nowrap;transition:background .2s ease,color .2s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.14)}
.nav-link.active{color:#fff;background:rgba(255,255,255,.18);font-weight:600}
.site-header.is-solid .nav-link{color:var(--ink-2)}
.site-header.is-solid .nav-link:hover{color:var(--primary);background:var(--bg-soft)}
.site-header.is-solid .nav-link.active{color:var(--primary);background:var(--bg-soft);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-dark);background:transparent;color:#fff;cursor:pointer;transition:.2s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.16)}
.site-header.is-solid .icon-btn{border-color:var(--line);color:var(--ink-2)}
.site-header.is-solid .icon-btn:hover{background:var(--bg-soft);color:var(--primary)}
.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease,color .2s ease;
}
.btn-cta:hover{background:var(--primary-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-cta:active{transform:translateY(0)}
.btn-cta:focus-visible{outline:3px solid rgba(20,88,74,.35);outline-offset:2px}
.nav-cta{height:42px;padding:0 22px;font-size:14.5px}
.nav-toggler{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.5);display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink);cursor:pointer;
}
.nav-drawer{
  position:absolute;top:100%;left:0;right:0;
  background:rgba(250,247,242,.98);
  border-top:1px solid var(--line);box-shadow:var(--sh-1);
  padding:14px 20px 22px;
}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-link{padding:12px 14px;border-radius:12px;font-size:15.5px;color:var(--ink-2)}
.drawer-link:hover,.drawer-link.active{background:var(--bg-soft);color:var(--primary)}
.drawer-cta{margin-top:12px;width:100%}

/* ---------- page head ---------- */
.page-head{
  position:relative;padding:150px 0 62px;color:var(--on-dark);
  background:linear-gradient(115deg,rgba(14,63,53,.94) 0%,rgba(20,88,74,.86) 58%,rgba(20,88,74,.72) 100%),
             url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  overflow:hidden;
}
.page-head::after{
  content:"";position:absolute;right:-90px;top:-120px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(255,255,255,.10);
}
.page-head .wrap{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--on-dark-2);margin-bottom:20px}
.crumb a{color:var(--on-dark-2)}
.crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.crumb .sep{color:rgba(255,255,255,.4)}
.crumb .current{color:#fff}
.page-h1{
  font-family:var(--font-serif);
  font-size:clamp(28px,3.8vw,44px);
  line-height:1.32;font-weight:600;color:#fff;max-width:880px;
}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:22px;font-size:14px;color:var(--on-dark-2)}
.post-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.38);display:inline-block}
.meta-badge{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:6px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);
  color:#fff;font-size:13px;letter-spacing:.2px;
}

/* ---------- article layout ---------- */
.article-section{padding:clamp(48px,6vw,80px) 0 clamp(56px,7vw,96px)}
.article-layout{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:1200px){
  .article-layout{grid-template-columns:210px minmax(0,1fr);gap:44px;align-items:start}
  .toc{position:sticky;top:104px}
}
.toc{display:none}
@media (min-width:1200px){.toc{display:block}}
.toc-inner{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 18px;box-shadow:var(--sh-1);
}
.toc-title{font-size:14px;font-weight:700;color:var(--ink);letter-spacing:.6px;margin-bottom:12px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.toc-nav{display:flex;flex-direction:column;gap:2px;max-height:56vh;overflow:auto}
.toc-link{
  display:block;font-size:13.5px;line-height:1.6;color:var(--ink-2);
  padding:6px 10px;border-radius:8px;border-left:2px solid transparent;
}
.toc-link:hover{background:var(--bg-soft);color:var(--primary)}
.toc-link.is-active{color:var(--primary);border-left-color:var(--primary);background:var(--bg-soft);font-weight:600}
.toc-sub{padding-left:22px;font-size:13px;color:var(--ink-3)}

.article-main{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:clamp(22px,3.6vw,48px);
}
.article-body{max-width:760px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--ink);overflow-wrap:break-word}
.article-body h2{
  font-family:var(--font-serif);font-size:clamp(22px,2.4vw,28px);font-weight:600;line-height:1.42;
  margin:2.2em 0 .75em;padding-bottom:.42em;border-bottom:1px solid var(--line);position:relative;scroll-margin-top:100px;
}
.article-body h2::after{content:"";position:absolute;left:0;bottom:-1px;width:40px;height:3px;background:var(--primary);border-radius:2px}
.article-body h3{font-size:20px;font-weight:700;line-height:1.5;margin:1.7em 0 .6em;scroll-margin-top:100px}
.article-body h4{font-size:17.5px;font-weight:700;margin:1.4em 0 .5em}
.article-body p{margin:0 0 1.05em}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.15em}
.article-body li{margin-bottom:.5em}
.article-body li::marker{color:var(--primary)}
.article-body strong{font-weight:700}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(20,88,74,.3)}
.article-body a:hover{color:var(--primary-deep);border-bottom-color:var(--primary-deep)}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;background:var(--bg-soft);
  border-left:3px solid var(--primary);border-radius:0 12px 12px 0;color:var(--ink-2);font-size:16px;
}
.article-body img{border-radius:var(--r-card);margin:1.5em auto;width:100%;height:auto;box-shadow:var(--sh-1)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13.5px;color:var(--ink-3);text-align:center;margin-top:10px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}
.article-body code{background:var(--bg-soft);color:var(--primary-deep);padding:2px 6px;border-radius:6px;font-size:14px}
.article-body pre{background:var(--primary-deep);color:#E6EFEA;padding:18px 20px;border-radius:12px;overflow-x:auto;font-size:14px;line-height:1.7}
.article-body pre code{background:transparent;color:inherit;padding:0}
.article-body table{width:100%;border-collapse:separate;border-spacing:0;font-size:15px;margin:1.6em 0;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.article-body th{background:var(--bg-soft);color:var(--primary-deep);font-weight:700;text-align:left}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:#FCFAF7}
.article-body tbody tr:last-child td{border-bottom:0}

.empty-state{text-align:center;padding:56px 16px;color:var(--ink-2)}
.empty-state svg{color:var(--primary);opacity:.7;margin-bottom:14px}
.empty-state p{font-size:17px;color:var(--ink);margin-bottom:16px}

/* ---------- article foot ---------- */
.article-foot{max-width:760px;margin:40px auto 0;padding-top:28px;border-top:1px solid var(--line)}
.foot-label{font-size:13px;color:var(--ink-3);letter-spacing:1px;margin-bottom:12px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:6px;
  background:var(--bg-soft);color:var(--primary);font-size:13.5px;border:1px solid transparent;
  transition:.2s ease;
}
.chip:hover{background:#fff;border-color:var(--line);color:var(--primary-deep);box-shadow:var(--sh-1)}
.post-nav{display:grid;grid-template-columns:1fr;gap:14px;margin-top:32px}
@media (min-width:640px){.post-nav{grid-template-columns:1fr 1fr}}
.post-nav a{
  display:block;padding:18px 20px;border:1px solid var(--line);border-radius:var(--r-card);
  background:#fff;transition:.2s ease;
}
.post-nav a:hover{border-color:rgba(20,88,74,.3);transform:translateY(-3px);box-shadow:var(--sh-2)}
.post-nav .pn-dir{font-size:12.5px;color:var(--ink-3);letter-spacing:1px;display:block;margin-bottom:6px}
.post-nav .pn-title{font-size:15.5px;font-weight:600;color:var(--ink);line-height:1.5}
.post-nav .pn-next{text-align:right}

/* ---------- related ---------- */
.related-section{padding:clamp(48px,6vw,88px) 0;background:var(--bg-soft)}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.sec-title{font-family:var(--font-serif);font-size:clamp(24px,3vw,34px);line-height:1.3;font-weight:600;color:var(--ink)}
.sec-title::after{content:"";display:block;width:40px;height:3px;background:var(--primary);border-radius:2px;margin-top:14px}
.sec-sub{font-size:15px;color:var(--ink-2);max-width:520px;margin-top:12px}
.card-post{
  height:100%;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.card-post:hover{transform:translateY(-4px);border-color:rgba(20,88,74,.3);box-shadow:var(--sh-2)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card-post:hover .card-media img{transform:scale(1.05)}
.badge-cat{
  position:absolute;left:14px;top:14px;display:inline-flex;align-items:center;height:26px;padding:0 10px;
  border-radius:6px;background:rgba(14,63,53,.86);color:#fff;font-size:12.5px;letter-spacing:.3px;backdrop-filter:blur(4px);
}
.card-body-p{padding:20px;display:flex;flex-direction:column;flex:1}
.card-title{font-size:17.5px;font-weight:700;line-height:1.5;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:52px}
.card-post:hover .card-title{color:var(--primary)}
.card-desc{margin-top:10px;font-size:14.5px;line-height:1.75;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3)}
.card-foot .more{color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:4px}
.card-foot .more svg{transition:transform .22s ease}
.card-post:hover .card-foot .more svg{transform:translateX(4px)}

/* ---------- cta band ---------- */
.cta-band{position:relative;background:var(--primary-deep);color:var(--on-dark);padding:clamp(56px,7vw,96px) 0;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;left:-140px;bottom:-180px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.07) 0%,rgba(255,255,255,0) 70%);
}
.cta-band .wrap{position:relative;z-index:2}
.cta-inner{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media (min-width:992px){.cta-inner{grid-template-columns:1.15fr .85fr;gap:56px}}
.cta-title{font-family:var(--font-serif);font-size:clamp(24px,3vw,34px);line-height:1.35;font-weight:600;color:#fff}
.cta-text{margin-top:14px;color:var(--on-dark-2);font-size:16px;max-width:560px}
.cta-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 28px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.45);color:#fff;background:transparent;font-size:15px;font-weight:600;transition:.2s ease;
}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px)}
.btn-white{
  display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 28px;border-radius:var(--r-pill);
  background:#fff;color:var(--primary-deep);font-size:15px;font-weight:700;transition:.2s ease;
}
.btn-white:hover{background:#F2F6F3;color:var(--primary-deep);transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,0,0,.22)}
.cta-points{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}
.cta-points li{
  display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--on-dark-2);
  padding:14px 16px;border:1px solid rgba(255,255,255,.18);border-radius:12px;background:rgba(255,255,255,.04);
}
.cta-points li svg{flex-shrink:0;margin-top:4px;color:var(--accent)}

/* ---------- footer ---------- */
.site-footer{background:var(--primary-deep);color:var(--on-dark-2);padding:clamp(48px,6vw,72px) 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}}
.site-footer .brand{padding-bottom:14px}
.site-footer .brand-main{color:#fff}
.site-footer .brand-sub{color:var(--on-dark-2)}
.footer-text{margin-top:14px;font-size:14.5px;line-height:1.8;color:var(--on-dark-2);max-width:340px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:38px;height:38px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.22);color:var(--on-dark-2);transition:.2s ease;
}
.footer-social a:hover{background:rgba(255,255,255,.1);color:#fff}
.footer-col h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:16px;letter-spacing:.4px}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14.5px;color:var(--on-dark-2)}
.footer-col ul a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-contact{font-size:14.5px;line-height:1.9;color:var(--on-dark-2);margin:0 0 16px}
.footer-contact b{color:#fff;font-weight:600}
.footer-sub{display:flex;gap:8px}
.footer-sub .form-control{
  height:44px;border-radius:12px;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.22);color:#fff;font-size:14px;padding:0 14px;
}
.footer-sub .form-control::placeholder{color:rgba(255,255,255,.45)}
.footer-sub .form-control:focus{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.45);box-shadow:0 0 0 3px rgba(255,255,255,.12);color:#fff}
.btn-sub{
  height:44px;padding:0 20px;border-radius:12px;border:0;background:var(--accent);color:#fff;
  font-size:14.5px;font-weight:600;cursor:pointer;transition:.2s ease;white-space:nowrap;
}
.btn-sub:hover{background:#C65B3E;transform:translateY(-1px)}
.footer-bottom{
  margin-top:clamp(36px,5vw,56px);border-top:1px solid rgba(255,255,255,.15);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}

/* ---------- back top ---------- */
.back-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;
  background:var(--primary);color:#fff;border:0;display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease;z-index:1040;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{background:var(--primary-deep)}

@media (max-width:991.98px){
  .site-header{background:rgba(250,247,242,.92);backdrop-filter:blur(12px);border-bottom-color:var(--line)}
  .site-header .brand-main{color:var(--ink)}
  .site-header .brand-sub{color:var(--ink-3)}
  .page-head{padding:120px 0 52px}
}
@media (max-width:575.98px){
  .site-header{height:68px}
  .nav-inner{height:68px}
  .brand-main{font-size:17.5px}
  .brand-sub{font-size:11px}
  .page-head{padding:108px 0 44px}
  .article-main{padding:20px}
  .article-body{font-size:16.5px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions a{width:100%}
  .footer-sub{flex-direction:column}
  .btn-sub{width:100%}
  .back-top{right:16px;bottom:16px}
}

/* roulang page: category1 */
:root{
  --primary:#14584A;
  --primary-deep:#0E3F35;
  --accent:#D9694A;
  --bg:#FAF7F2;
  --bg-alt:#EDF3EF;
  --ink:#1B211E;
  --ink-2:#5B6B64;
  --ink-3:#8A968F;
  --line:#DCE5DF;
  --line-dark:rgba(255,255,255,.22);
  --ok:#14584A;
  --err:#C0453A;
  --r-card:16px;
  --r-img:20px;
  --r-btn:999px;
  --r-input:12px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(20,60,50,.06),0 8px 24px rgba(20,60,50,.06);
  --sh-2:0 12px 32px rgba(20,60,50,.12);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --sp-section:clamp(64px,8vw,112px);
  --bs-body-bg:var(--bg);
  --bs-body-color:var(--ink);
  --bs-border-color:var(--line);
  --bs-link-color:var(--primary);
  --bs-link-hover-color:var(--primary-deep);
  --bs-body-font-family:var(--font);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-deep);}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
p{margin:0 0 .85em;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(20,88,74,.35);outline-offset:2px;border-radius:6px;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.wrap{padding:0 32px;}}
.row{--bs-gutter-x:24px;--bs-gutter-y:24px;}
.section{padding:var(--sp-section) 0;}
.section-alt{background:var(--bg-alt);}

/* ---------- header / nav ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.22);
  transition:background .24s ease,border-color .24s ease,box-shadow .24s ease;
  --nav-ink:#F2F6F3;
  --nav-ink-2:#B9C9C2;
  --nav-hover:#FFFFFF;
}
.site-header.is-scrolled{
  background:rgba(250,247,242,.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
  --nav-ink:#1B211E;
  --nav-ink-2:#5B6B64;
  --nav-hover:#14584A;
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;}
.brand{display:flex;flex-direction:column;justify-content:center;line-height:1.2;text-decoration:none;}
.brand-main{font-size:19px;font-weight:700;color:var(--nav-ink);letter-spacing:.4px;transition:color .24s ease;}
.brand-sub{font-size:12px;letter-spacing:1px;color:var(--nav-ink-2);transition:color .24s ease;}
.brand:hover .brand-main{color:var(--nav-hover);}
.nav-links{align-items:center;gap:26px;}
.nav-link{
  position:relative;display:inline-block;
  font-size:15px;color:var(--nav-ink);padding:6px 2px;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:currentColor;border-radius:2px;
  opacity:0;transform:scaleX(.5);transition:opacity .24s ease,transform .24s ease;
}
.nav-link:hover{color:var(--nav-hover);}
.nav-link:hover::after,.nav-link.active::after{opacity:1;transform:none;}
.nav-actions{align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-dark);
  background:rgba(255,255,255,.08);
  color:var(--nav-ink);cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.site-header.is-scrolled .icon-btn{border-color:var(--line);background:#fff;color:var(--primary);}
.icon-btn:hover{transform:translateY(-2px);color:var(--nav-hover);}
.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 24px;border-radius:var(--r-btn);
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-cta:hover{background:var(--primary-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.site-header.is-scrolled .btn-cta{background:var(--primary);color:#fff;}
.nav-toggle{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line-dark);
  background:rgba(255,255,255,.08);color:var(--nav-ink);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
}
.site-header.is-scrolled .nav-toggle{border-color:var(--line);background:#fff;color:var(--primary);}
.mobile-panel{
  position:fixed;left:0;right:0;top:76px;z-index:1029;
  background:rgba(250,247,242,.97);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-1);
  padding:16px 20px 26px;
  transform:translateY(-14px);opacity:0;visibility:hidden;
  transition:transform .24s ease,opacity .24s ease,visibility .24s ease;
}
.mobile-panel.open{transform:none;opacity:1;visibility:visible;}
.mobile-panel .m-label{font-size:13px;color:var(--ink-3);letter-spacing:1px;margin:8px 0 10px;}
.mobile-panel a.m-link{
  display:block;padding:12px 14px;border-radius:12px;
  color:var(--ink);font-size:16px;border:1px solid transparent;
}
.mobile-panel a.m-link:hover{background:#fff;border-color:var(--line);}
.mobile-panel a.m-link.active{color:var(--primary);font-weight:600;background:#fff;border-color:var(--line);}
.mobile-panel .btn-cta{width:100%;margin-top:14px;height:48px;}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:150px 0 78px;
  color:#F2F6F3;
  background:
    linear-gradient(118deg,rgba(14,63,53,.95) 0%,rgba(20,88,74,.86) 62%,rgba(20,88,74,.72) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.page-hero::after{
  content:"";position:absolute;right:-160px;top:-120px;
  width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(255,255,255,.10);
  box-shadow:0 0 0 60px rgba(255,255,255,.03),0 0 0 130px rgba(255,255,255,.02);
  pointer-events:none;
}
.page-hero .wrap{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:#B9C9C2;margin-bottom:20px;}
.crumb a{color:#B9C9C2;}
.crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.crumb .sep{opacity:.65;}
.crumb .cur{color:#F2F6F3;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-badge);
  font-size:13px;letter-spacing:.5px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);
  color:#F2F6F3;
}
.chip-accent{background:rgba(217,105,74,.20);border-color:rgba(217,105,74,.45);color:#FFE4DA;}
.page-hero h1{
  font-size:clamp(32px,4.6vw,52px);
  line-height:1.25;font-weight:700;
  margin:18px 0 16px;color:#fff;
}
.page-hero .lede{
  font-size:17px;line-height:1.85;color:#D7E3DC;
  max-width:660px;margin:0 0 30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  background:var(--primary);color:#fff;font-size:16px;font-weight:600;
  border:1px solid transparent;
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-main:hover{background:var(--primary-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  background:transparent;color:#F2F6F3;font-size:16px;font-weight:600;
  border:1px solid rgba(255,255,255,.55);
  transition:background .22s ease,color .22s ease,transform .22s ease;
}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  background:transparent;color:var(--primary);font-size:16px;font-weight:600;
  border:1px solid var(--primary);
  transition:background .22s ease,color .22s ease,transform .22s ease;
}
.btn-line:hover{background:var(--bg-alt);color:var(--primary-deep);transform:translateY(-2px);}
.hero-facts{display:flex;flex-wrap:wrap;gap:26px;margin-top:34px;padding-top:26px;border-top:1px solid rgba(255,255,255,.18);}
.hero-fact{display:flex;align-items:center;gap:10px;font-size:14px;color:#D7E3DC;}
.hero-fact svg{color:#9FC3B5;flex:0 0 auto;}

/* ---------- side nav ---------- */
.side-nav{
  position:sticky;top:104px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 20px;box-shadow:var(--sh-1);
}
.side-title{
  font-size:13px;letter-spacing:1px;color:var(--ink-3);
  font-weight:600;margin:0 0 14px;
}
.side-nav ul{display:block;}
.side-nav li+li{margin-top:2px;}
.side-nav a.s-link{
  display:block;padding:9px 12px;border-radius:10px;
  font-size:15px;color:var(--ink-2);border-left:2px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.side-nav a.s-link:hover{background:var(--bg-alt);color:var(--primary);border-left-color:var(--primary);}
.side-nav a.s-link.on{background:var(--bg-alt);color:var(--primary);border-left-color:var(--primary);font-weight:600;}
.side-cta{
  display:flex;align-items:center;justify-content:center;
  height:44px;margin-top:18px;border-radius:var(--r-btn);
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;
  transition:background .22s ease,transform .22s ease;
}
.side-cta:hover{background:var(--primary-deep);color:#fff;transform:translateY(-2px);}
@media (max-width:991.98px){
  .side-nav{position:static;padding:16px;}
  .side-title{margin-bottom:10px;}
  .side-nav ul{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;-webkit-overflow-scrolling:touch;}
  .side-nav li{flex:0 0 auto;}
  .side-nav li+li{margin-top:0;}
  .side-nav a.s-link{
    white-space:nowrap;border-left:0;border:1px solid var(--line);
    border-radius:var(--r-btn);padding:8px 16px;
  }
  .side-nav a.s-link:hover,.side-nav a.s-link.on{border-left:0;}
}

/* ---------- article blocks ---------- */
.article-block{scroll-margin-top:104px;}
.article-block + .article-block{margin-top:clamp(48px,5vw,72px);}
.block-tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;letter-spacing:1px;color:var(--primary);
  background:var(--bg-alt);border-radius:var(--r-badge);
  padding:4px 10px;margin-bottom:14px;
}
.h2{
  font-size:clamp(24px,3.2vw,36px);line-height:1.3;font-weight:700;color:var(--ink);
  margin:0 0 20px;
}
.h2::after{content:"";display:block;width:40px;height:3px;border-radius:2px;background:var(--primary);margin-top:14px;}
.h3{font-size:20px;line-height:1.45;font-weight:700;color:var(--ink);margin:0 0 8px;}
.block-p{color:var(--ink-2);font-size:16.5px;line-height:1.9;margin:0 0 .9em;max-width:76ch;}
.figure{margin:0 0 28px;}
.figure img{border-radius:var(--r-img);box-shadow:var(--sh-1);width:100%;aspect-ratio:16/9;object-fit:cover;}
.figure figcaption{font-size:13.5px;color:var(--ink-3);margin-top:10px;}
.item-grid{display:grid;grid-template-columns:1fr;gap:18px;margin-top:26px;}
@media (min-width:768px){.item-grid{grid-template-columns:repeat(2,1fr);}}
.item-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 22px 20px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.item-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(20,88,74,.30);}
.item-card p{color:var(--ink-2);font-size:15px;line-height:1.8;margin:0;}
.icon-badge{
  width:42px;height:42px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(20,88,74,.28);color:var(--primary);
  background:var(--bg-alt);margin-bottom:14px;
}
.scene-grid{display:grid;grid-template-columns:1fr;gap:18px;margin-top:26px;}
@media (min-width:768px){.scene-grid{grid-template-columns:repeat(2,1fr);}}
.scene-card{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.scene-num{
  position:absolute;right:20px;top:18px;
  font-size:13px;font-weight:700;color:var(--accent);
  background:rgba(217,105,74,.10);border:1px solid rgba(217,105,74,.28);
  border-radius:var(--r-badge);padding:2px 9px;
  font-variant-numeric:tabular-nums;
}
.scene-card p{color:var(--ink-2);font-size:15px;margin:0;}

.step-list{position:relative;margin-top:30px;padding-left:34px;}
.step-list::before{content:"";position:absolute;left:13px;top:10px;bottom:12px;width:2px;background:linear-gradient(180deg,var(--primary),rgba(20,88,74,.12));}
.step-item{position:relative;padding:0 0 26px 18px;}
.step-item:last-child{padding-bottom:0;}
.step-item::before{
  content:"";position:absolute;left:-27px;top:9px;
  width:12px;height:12px;border-radius:50%;
  background:#fff;border:3px solid var(--primary);
}
.step-idx{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:1px;font-variant-numeric:tabular-nums;}
.step-item h3{font-size:18px;margin:2px 0 6px;color:var(--ink);}
.step-item p{color:var(--ink-2);font-size:15px;margin:0;max-width:72ch;}

.table-wrap{
  margin-top:24px;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;background:#fff;box-shadow:var(--sh-1);
}
table.price-table{width:100%;border-collapse:collapse;font-size:15px;}
table.price-table thead th{
  background:var(--bg-alt);color:var(--ink);font-weight:600;
  text-align:left;padding:14px 18px;font-size:14.5px;letter-spacing:.5px;
  border-bottom:1px solid var(--line);
}
table.price-table td{
  padding:15px 18px;border-bottom:1px solid var(--line);color:var(--ink-2);
  vertical-align:top;line-height:1.75;
}
table.price-table tbody tr:nth-child(even){background:#FCFAF7;}
table.price-table tbody tr:last-child td{border-bottom:0;}
table.price-table td:first-child{color:var(--ink);font-weight:600;}

.check-list{margin-top:22px;display:grid;gap:12px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:15px 18px;color:var(--ink-2);font-size:15.5px;line-height:1.8;
  box-shadow:var(--sh-1);
}
.check-list li svg{flex:0 0 auto;margin-top:5px;color:var(--primary);}
.note-box{
  margin-top:24px;background:var(--bg-alt);border-left:3px solid var(--primary);
  border-radius:0 var(--r-card) var(--r-card) 0;padding:18px 22px;
  color:var(--ink-2);font-size:15.5px;
}
.note-box strong{color:var(--ink);}

/* ---------- faq ---------- */
.faq-wrap{max-width:820px;}
.accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;margin-bottom:12px;
}
.accordion-item:last-child{margin-bottom:0;}
.accordion-button{
  width:100%;text-align:left;background:#fff;border:0;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;
  padding:20px 22px;display:flex;align-items:center;gap:14px;
  transition:color .2s ease,background .2s ease;
}
.accordion-button:hover{color:var(--primary);background:#FCFAF7;}
.accordion-button:not(.collapsed){color:var(--primary);}
.accordion-button::after{
  content:"";margin-left:auto;flex:0 0 auto;
  width:10px;height:10px;
  border-right:2px solid var(--ink-3);
  border-bottom:2px solid var(--ink-3);
  transform:rotate(45deg);
  transition:transform .24s ease,border-color .24s ease;
  background-image:none !important;
}
.accordion-button:not(.collapsed)::after{transform:rotate(-135deg);border-color:var(--primary);}
.accordion-button:focus{box-shadow:none;outline:none;}
.accordion-button:focus-visible{outline:3px solid rgba(20,88,74,.35);outline-offset:-3px;}
.accordion-body{
  padding:0 22px 22px;color:var(--ink-2);font-size:15.5px;line-height:1.85;
  border-top:1px solid var(--line);padding-top:16px;
}
.accordion-body p:last-child{margin-bottom:0;}

/* ---------- related cards ---------- */
.cat-grid{display:grid;grid-template-columns:1fr;gap:24px;margin-top:34px;}
@media (min-width:768px){.cat-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:992px){.cat-grid{grid-template-columns:repeat(3,1fr);}}
.cat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(20,88,74,.30);}
.cat-card figure{margin:0;overflow:hidden;background:var(--bg-alt);}
.cat-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease;}
.cat-card:hover img{transform:scale(1.04);}
.cat-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto;}
.badge-cat{
  align-self:flex-start;font-size:12.5px;letter-spacing:.5px;
  color:var(--primary);background:var(--bg-alt);
  border-radius:var(--r-badge);padding:3px 9px;margin-bottom:12px;
}
.cat-body h3{font-size:19px;line-height:1.45;margin:0 0 10px;color:var(--ink);}
.cat-body p{color:var(--ink-2);font-size:15px;line-height:1.8;margin:0 0 18px;}
.cat-more{margin-top:auto;color:var(--primary);font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.cat-more svg{transition:transform .22s ease;}
.cat-card:hover .cat-more svg{transform:translateX(4px);}

/* ---------- cta band ---------- */
.cta-band{
  background:
    linear-gradient(120deg,rgba(14,63,53,.96),rgba(20,88,74,.90)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  color:#F2F6F3;
  padding:var(--sp-section) 0;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;left:-140px;bottom:-160px;width:460px;height:460px;border-radius:50%;
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 0 0 70px rgba(255,255,255,.03);
  pointer-events:none;
}
.cta-grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:start;position:relative;z-index:2;}
@media (min-width:992px){.cta-grid{grid-template-columns:1fr 1fr;gap:56px;}}
.cta-band h2{font-size:clamp(24px,3.2vw,36px);line-height:1.3;color:#fff;margin:0 0 18px;}
.cta-band h2::after{content:"";display:block;width:40px;height:3px;border-radius:2px;background:#7FBBA7;margin-top:14px;}
.cta-band p{color:#C9DAD2;font-size:16.5px;line-height:1.9;max-width:62ch;}
.cta-list{margin-top:22px;display:grid;gap:10px;}
.cta-list li{display:flex;gap:10px;align-items:flex-start;color:#D7E3DC;font-size:15.5px;}
.cta-list li svg{flex:0 0 auto;margin-top:5px;color:#7FBBA7;}
.form-card{
  background:#fff;border-radius:var(--r-card);padding:28px;
  box-shadow:0 18px 44px rgba(0,0,0,.18);
}
.form-card h3{font-size:20px;color:var(--ink);margin:0 0 6px;}
.form-card .form-hint{font-size:14px;color:var(--ink-3);margin:0 0 20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:7px;}
.field input,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;
  border:1px solid var(--line);border-radius:var(--r-input);
  background:#FCFAF7;color:var(--ink);font-size:15px;line-height:1.7;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{min-height:104px;resize:vertical;}
.field input:focus,.field textarea:focus{
  outline:none;background:#fff;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(20,88,74,.16);
}
.form-card .btn-main{width:100%;margin-top:6px;}
.privacy{font-size:12.5px;color:var(--ink-3);margin:14px 0 0;line-height:1.7;}
@media (max-width:575.98px){.form-card .btn-main{width:100%;}}
.form-ok{
  display:none;margin-top:14px;font-size:14px;color:var(--ok);
  background:var(--bg-alt);border-radius:10px;padding:10px 14px;
}
.form-ok.show{display:block;}

/* ---------- footer ---------- */
.site-footer{background:var(--primary-deep);color:#B9C9C2;padding:clamp(56px,7vw,84px) 0 0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:38px;}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}}
.site-footer .brand-main{color:#F2F6F3;font-size:20px;}
.site-footer .brand-sub{color:#8FA9A0;}
.footer-text{font-size:14.5px;line-height:1.85;color:#B9C9C2;margin:16px 0 18px;max-width:36ch;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:38px;height:38px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.22);color:#D7E3DC;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.footer-social a:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);}
.footer-col h4{font-size:15px;color:#F2F6F3;margin:0 0 16px;letter-spacing:.5px;font-weight:600;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{color:#B9C9C2;font-size:14.5px;text-decoration:none;}
.footer-col a:hover{color:#F2F6F3;text-decoration:underline;text-underline-offset:4px;}
.footer-contact{font-size:14.5px;line-height:2;color:#B9C9C2;margin:0 0 16px;}
.footer-contact b{color:#E4EDE8;font-weight:600;}
.footer-sub{display:flex;gap:8px;}
.footer-sub input{
  flex:1 1 auto;min-width:0;height:44px;padding:0 14px;
  border-radius:var(--r-input);border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.06);color:#F2F6F3;font-size:14px;
}
.footer-sub input::placeholder{color:#8FA9A0;}
.footer-sub input:focus{outline:none;border-color:#7FBBA7;box-shadow:0 0 0 3px rgba(127,187,167,.20);}
.footer-sub button{
  flex:0 0 auto;height:44px;padding:0 18px;border-radius:var(--r-btn);
  border:0;background:#7FBBA7;color:#0E3F35;font-weight:600;font-size:14px;cursor:pointer;
  transition:background .2s ease,transform .2s ease;
}
.footer-sub button:hover{background:#9CCDBB;transform:translateY(-2px);}
.footer-bottom{
  margin-top:46px;border-top:1px solid rgba(255,255,255,.15);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13.5px;color:#8FA9A0;
}
.footer-bottom a{color:#8FA9A0;}
.footer-bottom a:hover{color:#F2F6F3;}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  width:46px;height:46px;border-radius:50%;border:1px solid var(--line);
  background:rgba(250,247,242,.94);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease,background .2s ease;
}
.to-top.show{opacity:1;visibility:visible;transform:none;}
.to-top:hover{background:#fff;box-shadow:var(--sh-2);}

@media (max-width:575.98px){
  .page-hero{padding:126px 0 60px;}
  .page-hero .lede{font-size:16px;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .hero-facts{gap:16px;}
  .hero-fact{font-size:13.5px;}
  .site-header{background:rgba(250,247,242,.92);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom-color:var(--line);--nav-ink:#1B211E;--nav-ink-2:#5B6B64;--nav-hover:#14584A;}
  .site-header .icon-btn{border-color:var(--line);background:#fff;color:var(--primary);}
  .site-header .nav-toggle{border-color:var(--line);background:#fff;color:var(--primary);}
  .brand-main{font-size:17px;}
  .table-wrap{overflow-x:auto;}
  table.price-table{min-width:520px;}
}

/* roulang page: category2 */
:root{
  --primary:#14584A;
  --primary-deep:#0E3F35;
  --primary-soft:#EDF3EF;
  --accent:#D9694A;
  --bg:#FAF7F2;
  --bg-alt:#EDF3EF;
  --dark:#0E3F35;
  --ink:#1B211E;
  --ink-2:#5B6B64;
  --ink-3:#8A968F;
  --on-dark:#F2F6F3;
  --on-dark-2:#B9C9C2;
  --line:#DCE5DF;
  --line-glass:rgba(255,255,255,.22);
  --line-dark:rgba(255,255,255,.15);
  --r-card:16px;
  --r-img:20px;
  --r-btn:999px;
  --r-input:12px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(20,60,50,.06),0 8px 24px rgba(20,60,50,.06);
  --sh-2:0 12px 32px rgba(20,60,50,.12);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-serif:"Source Han Serif SC","Songti SC",serif;
  --bs-body-font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --bs-body-bg:#FAF7F2;
  --bs-body-color:#1B211E;
  --bs-border-radius:16px;
  --bs-link-color:#14584A;
  --bs-link-hover-color:#0E3F35;
  --bs-primary:#14584A;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-deep)}
p{margin:0 0 .85em}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--ink)}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(20,88,74,.35);outline-offset:2px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.wrap{padding:0 32px}}
section{padding:clamp(64px,8vw,112px) 0}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(20,88,74,.20);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line-glass);
  color:var(--on-dark);
  transition:background .24s ease,color .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.site-header.scrolled{
  background:rgba(250,247,242,.94);
  border-bottom-color:var(--line);
  color:var(--ink);
  box-shadow:var(--sh-1);
}
.header-inner{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;flex-direction:column;line-height:1.15;text-decoration:none}
.brand-main{font-size:20px;font-weight:700;letter-spacing:.4px;color:#fff;transition:color .24s ease}
.brand-sub{font-size:12px;letter-spacing:1px;color:rgba(242,246,243,.78);margin-top:3px;transition:color .24s ease}
.scrolled .brand-main{color:var(--ink)}
.scrolled .brand-sub{color:var(--ink-3)}
.nav-links{align-items:center;gap:6px}
.nav-link{
  display:inline-block;padding:9px 14px;border-radius:var(--r-btn);
  font-size:15px;color:rgba(242,246,243,.88);text-decoration:none;
  transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:rgba(255,255,255,.14);color:#fff}
.nav-link.active{color:#fff;font-weight:600;background:rgba(255,255,255,.16)}
.scrolled .nav-link{color:var(--ink-2)}
.scrolled .nav-link:hover{background:var(--primary-soft);color:var(--primary-deep)}
.scrolled .nav-link.active{color:var(--primary);background:var(--primary-soft)}
.header-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:42px;height:42px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.30);background:rgba(255,255,255,.10);color:inherit;cursor:pointer;
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.22)}
.scrolled .icon-btn{border-color:var(--line);background:#fff;color:var(--primary)}
.scrolled .icon-btn:hover{background:var(--primary-soft)}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);border:0;
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;cursor:pointer;
  text-decoration:none;transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-main:hover{background:var(--primary-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-main:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  border:1px solid var(--primary);background:transparent;color:var(--primary);
  font-size:15px;font-weight:600;cursor:pointer;text-decoration:none;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-deep);transform:translateY(-2px)}
.btn-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);border:0;
  background:#fff;color:var(--primary-deep);font-size:15px;font-weight:600;cursor:pointer;
  text-decoration:none;transition:transform .2s ease,box-shadow .2s ease;
}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(0,0,0,.22);color:var(--primary-deep)}
.btn-outline-light{
  display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 26px;
  border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.5);background:transparent;
  color:#fff;font-size:15px;font-weight:600;cursor:pointer;text-decoration:none;
  transition:background .2s ease;
}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff}
.menu-toggle{
  width:44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:#fff;color:var(--primary);cursor:pointer;
}
.mobile-panel{
  display:none;position:fixed;top:76px;left:0;right:0;z-index:1039;
  background:rgba(250,247,242,.98);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);box-shadow:var(--sh-1);
  padding:16px 20px 24px;
}
.mobile-panel.open{display:block}
.m-link{display:block;padding:13px 12px;border-radius:12px;font-size:15px;color:var(--ink-2);text-decoration:none}
.m-link:hover{background:var(--primary-soft);color:var(--primary-deep)}
.m-link.active{background:var(--primary-soft);color:var(--primary);font-weight:600}
.mobile-panel .btn-main{width:100%;margin-top:14px}
@media (max-width:991.98px){
  .site-header{background:rgba(250,247,242,.94);border-bottom-color:var(--line);box-shadow:var(--sh-1)}
  .site-header .brand-main{color:var(--ink)}
  .site-header .brand-sub{color:var(--ink-3)}
  .site-header .icon-btn{border-color:var(--line);background:#fff;color:var(--primary)}
}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;padding:150px 0 clamp(64px,8vw,96px);
  background:
    linear-gradient(120deg,rgba(14,63,53,.94) 0%,rgba(14,63,53,.80) 46%,rgba(14,63,53,.56) 100%),
    url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  color:var(--on-dark);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(255,255,255,.12);pointer-events:none;
}
.page-hero .wrap{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--on-dark-2);margin-bottom:22px}
.crumbs a{color:var(--on-dark-2);text-decoration:none}
.crumbs a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.crumbs .sep{color:rgba(255,255,255,.42)}
.crumbs .current{color:#fff}
.page-hero h1{
  color:#fff;font-family:var(--font-serif);
  font-size:clamp(32px,4.6vw,52px);font-weight:700;line-height:1.25;max-width:16em;
}
.hero-lead{max-width:44em;margin-top:18px;font-size:17px;color:rgba(242,246,243,.86)}
.hero-points{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-point{
  display:inline-flex;align-items:center;gap:9px;padding:10px 16px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);
  font-size:13.5px;color:#fff;
}
.hero-point svg{flex:none;color:#9FD3C2}

/* ---------- section heading ---------- */
.sec-head{max-width:720px;margin-bottom:clamp(32px,4vw,52px)}
.sec-head h2{
  font-family:var(--font-serif);
  font-size:clamp(24px,3.2vw,36px);line-height:1.3;
}
.sec-head h2::after{content:"";display:block;width:40px;height:3px;background:var(--primary);border-radius:3px;margin-top:16px}
.sec-head p{margin-top:16px;color:var(--ink-2)}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head.center h2::after{margin-left:auto;margin-right:auto}
.sec-head.on-dark h2{color:#fff}
.sec-head.on-dark h2::after{background:var(--accent)}
.sec-head.on-dark p{color:var(--on-dark-2)}
.eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:1.4px;color:var(--primary);
  background:var(--primary-soft);border-radius:var(--r-badge);padding:5px 12px;margin-bottom:14px;
}
.eyebrow.on-dark{background:rgba(255,255,255,.12);color:#9FD3C2}

/* ---------- filter + card wall ---------- */
.section-alt{background:var(--bg-alt)}
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.chip{
  padding:9px 18px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;
  font-size:14px;color:var(--ink-2);cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.chip:hover{border-color:rgba(20,88,74,.4);color:var(--primary);transform:translateY(-1px)}
.chip.active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.item-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  height:100%;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.item-card:hover{transform:translateY(-4px);border-color:rgba(20,88,74,.3);box-shadow:var(--sh-2)}
.item-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt)}
.item-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.item-card:hover .item-thumb img{transform:scale(1.04)}
.item-body{padding:20px;display:flex;flex-direction:column;flex:1;gap:10px}
.badge-tag{
  align-self:flex-start;font-size:12px;letter-spacing:.4px;padding:4px 10px;border-radius:var(--r-badge);
  background:var(--primary-soft);color:var(--primary);font-weight:600;
}
.badge-tag.accent{background:rgba(217,105,74,.12);color:#B04B2E}
.item-body h3{font-size:19px;line-height:1.45}
.item-body p{font-size:14.5px;color:var(--ink-2);margin:0}
.item-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
}
.item-foot .meta{font-size:13px;color:var(--ink-3)}
.link-arrow{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.link-arrow svg{transition:transform .2s ease}
.link-arrow:hover svg{transform:translateX(4px)}
.is-hidden{display:none !important}
.empty-note{
  display:none;text-align:center;padding:56px 20px;border:1px dashed var(--line);border-radius:var(--r-card);
  background:#fff;color:var(--ink-2);
}
.empty-note.show{display:block}
.empty-note svg{color:var(--primary);margin-bottom:12px}

/* ---------- dark feature ---------- */
.section-dark{background:var(--dark);color:var(--on-dark)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,64px);align-items:center}
.split-media img{width:100%;border-radius:var(--r-img);box-shadow:0 20px 48px rgba(0,0,0,.28)}
.check-list{display:grid;gap:16px;margin-top:26px}
.check-item{display:flex;gap:14px;align-items:flex-start}
.check-icon{
  flex:none;width:30px;height:30px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.12);color:#9FD3C2;margin-top:2px;
}
.check-item span{font-size:15.5px;color:var(--on-dark-2);line-height:1.7}
.check-item span b{color:#fff;font-weight:600}

/* ---------- promise list ---------- */
.promise-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 32px;margin-top:8px}
.promise{
  display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px;transition:box-shadow .22s ease,transform .22s ease;
}
.promise:hover{transform:translateY(-3px);box-shadow:var(--sh-1)}
.promise-num{
  flex:none;width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(217,105,74,.12);color:#B04B2E;font-weight:700;font-size:15px;
}
.promise h3{font-size:17px;margin-bottom:6px}
.promise p{font-size:14px;color:var(--ink-2);margin:0}

/* ---------- faq ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:12px;overflow:hidden}
.faq-item:first-child{border-top-left-radius:var(--r-card);border-top-right-radius:var(--r-card)}
.faq-h{margin:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.5;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--primary)}
.faq-q svg{flex:none;color:var(--primary);transition:transform .3s ease}
.faq-item.open .faq-q{color:var(--primary)}
.faq-item.open .faq-q svg{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-item.open .faq-a{max-height:420px}
.faq-a-inner{padding:0 22px 22px;font-size:15px;color:var(--ink-2);line-height:1.85}

/* ---------- cta ---------- */
.cta-band{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-deep) 100%);
  color:var(--on-dark);position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;left:-120px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(255,255,255,.10);
}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,64px);align-items:start;position:relative;z-index:2}
.cta-band h2{color:#fff;font-family:var(--font-serif);font-size:clamp(24px,3.2vw,36px)}
.cta-band .cta-lead{color:rgba(242,246,243,.82);margin-top:16px;font-size:16px}
.cta-list{margin-top:24px;display:grid;gap:12px}
.cta-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(242,246,243,.86)}
.cta-list svg{flex:none;color:#9FD3C2;margin-top:5px}
.form-card{background:#fff;border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-2);color:var(--ink)}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px}
.form-row input,.form-row textarea{
  width:100%;border:1px solid var(--line);background:#fff;border-radius:var(--r-input);
  padding:0 14px;font-size:15px;color:var(--ink);font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-row input{height:48px}
.form-row textarea{padding:12px 14px;min-height:104px;resize:vertical;line-height:1.7}
.form-row input:focus,.form-row textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(20,88,74,.14);
}
.form-card .btn-main{width:100%}
.form-note{font-size:12.5px;color:var(--ink-3);margin-top:12px;line-height:1.7}
.form-ok{
  display:none;margin-top:14px;font-size:14px;color:var(--primary);
  background:var(--primary-soft);border-radius:12px;padding:12px 14px;
}
.form-ok.show{display:block}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:var(--on-dark-2);padding:clamp(56px,7vw,88px) 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-text{font-size:14px;line-height:1.85;margin-top:16px;color:var(--on-dark-2)}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:36px;height:36px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-dark);color:var(--on-dark-2);transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.footer-social a:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.4)}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--on-dark-2);text-decoration:none}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-contact{font-size:14px;line-height:2}
.footer-contact b{color:#fff;font-weight:600}
.footer-sub{display:flex;gap:8px;margin-top:16px}
.footer-sub input{
  flex:1;height:44px;border-radius:var(--r-input);border:1px solid var(--line-dark);
  background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:14px;font-family:inherit;
}
.footer-sub input::placeholder{color:rgba(185,201,194,.7)}
.footer-sub input:focus{outline:none;border-color:rgba(255,255,255,.5)}
.footer-sub button{
  height:44px;padding:0 18px;border-radius:var(--r-input);border:0;background:#fff;color:var(--primary-deep);
  font-size:14px;font-weight:600;cursor:pointer;transition:background .2s ease;
}
.footer-sub button:hover{background:#E6EFE9}
.footer-bottom{
  border-top:1px solid var(--line-dark);margin-top:48px;padding:20px 0;font-size:13px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;color:rgba(185,201,194,.85);
}
.footer-bottom a{color:rgba(185,201,194,.85)}
.footer-bottom a:hover{color:#fff}

/* ---------- to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  box-shadow:var(--sh-1);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease;z-index:1041;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--primary-soft)}

@media (max-width:1199.98px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:991.98px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr}
  .promise-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .page-hero{padding-top:132px}
}
@media (max-width:575.98px){
  body{font-size:16px}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-points{gap:10px}
  .hero-point{font-size:13px;padding:9px 13px}
  .form-card{padding:22px}
  .to-top{right:16px;bottom:16px}
}

/* roulang page: category3 */
:root{
  --primary:#14584A;
  --primary-deep:#0E3F35;
  --accent:#D9694A;
  --bg:#FAF7F2;
  --bg-alt:#EDF3EF;
  --ink:#1B211E;
  --ink-2:#5B6B64;
  --ink-3:#8A968F;
  --line:#DCE5DF;
  --white:#FFFFFF;
  --r-card:16px;
  --r-img:20px;
  --r-pill:999px;
  --r-input:12px;
  --r-badge:6px;
  --shadow-1:0 1px 2px rgba(20,60,50,.06),0 8px 24px rgba(20,60,50,.06);
  --shadow-2:0 12px 32px rgba(20,60,50,.12);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-serif:"Source Han Serif SC","Songti SC",serif;
  --bs-body-font-family:var(--font-sans);
  --bs-body-color:var(--ink);
  --bs-primary:var(--primary);
  --bs-border-radius:var(--r-card);
  --bs-gutter-x:24px;
  --bs-link-color:var(--primary);
  --bs-link-hover-color:var(--primary-deep);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  background:var(--bg);
  color:var(--ink);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-deep);text-decoration:underline;text-underline-offset:4px;}
h1,h2,h3,h4,h5,h6{margin:0 0 .6em;font-weight:700;letter-spacing:0;}
p{margin:0 0 .85em;}
ul,ol{margin:0 0 .85em;padding-left:1.2em;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(20,88,74,.35);outline-offset:2px;border-radius:6px;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.wrap{padding:0 32px;}}
.section{padding:clamp(64px,8vw,112px) 0;}
.bg-alt{background:var(--bg-alt);}
.section-head{max-width:760px;margin-bottom:clamp(32px,4vw,52px);}
.section-head h2{
  font-family:var(--font-serif);
  font-size:clamp(24px,3.2vw,36px);
  line-height:1.3;
  color:var(--ink);
  margin:0 0 18px;
  position:relative;
  padding-bottom:16px;
}
.section-head h2::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:40px;height:3px;background:var(--primary);border-radius:2px;
}
.section-head p{color:var(--ink-2);font-size:16px;margin:0;}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:1.5px;color:var(--primary);
  background:rgba(20,88,74,.08);border-radius:var(--r-badge);
  padding:5px 12px;margin-bottom:14px;font-weight:600;
}

/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost,.btn-light-solid{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:15.5px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  text-decoration:none;
}
.btn-main{background:var(--primary);color:#fff;}
.btn-main:hover{background:var(--primary-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);text-decoration:none;}
.btn-main:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--bg-alt);color:var(--primary-deep);text-decoration:none;}
.btn-light-solid{background:#fff;color:var(--primary-deep);}
.btn-light-solid:hover{background:#F2F6F3;color:var(--primary-deep);transform:translateY(-2px);text-decoration:none;}
.btn-ghost-light{background:transparent;color:#F2F6F3;border-color:rgba(255,255,255,.55);}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;text-decoration:none;border-color:#fff;}
.text-link{color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.text-link svg{transition:transform .22s ease;}
.text-link:hover svg{transform:translateX(4px);}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.22);
  transition:background .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.header-inner{display:flex;align-items:center;gap:28px;height:76px;}
.brand{display:flex;flex-direction:column;gap:2px;text-decoration:none;flex-shrink:0;}
.brand:hover{text-decoration:none;}
.brand-main{
  font-size:19px;font-weight:700;letter-spacing:.4px;line-height:1.1;
  color:#F2F6F3;transition:color .24s ease;
}
.brand-sub{
  font-size:12px;letter-spacing:1px;line-height:1.2;
  color:rgba(242,246,243,.72);transition:color .24s ease;
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links .nav-link{
  display:inline-block;padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;color:rgba(242,246,243,.86);
  transition:color .2s ease,background .2s ease;text-decoration:none;
}
.nav-links .nav-link:hover{color:#fff;background:rgba(255,255,255,.14);text-decoration:none;}
.nav-links .nav-link.active{color:#fff;background:rgba(255,255,255,.18);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:8px;}
.icon-btn{
  width:42px;height:42px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);
  color:#F2F6F3;cursor:pointer;transition:background .2s ease,color .2s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.22);}
.header-cta{
  display:inline-flex;align-items:center;height:42px;padding:0 22px;
  border-radius:var(--r-pill);background:var(--primary);color:#fff;
  font-size:15px;font-weight:600;text-decoration:none;
  transition:background .22s ease,transform .22s ease;
}
.header-cta:hover{background:var(--primary-deep);color:#fff;transform:translateY(-1px);text-decoration:none;}
.menu-btn{
  width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.34);
  background:rgba(255,255,255,.12);display:inline-flex;flex-direction:column;
  align-items:center;justify-content:center;gap:4px;cursor:pointer;padding:0;
}
.menu-btn span{display:block;width:18px;height:2px;background:#F2F6F3;border-radius:2px;transition:transform .22s ease,opacity .22s ease,background .22s ease;}
.menu-btn.open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.menu-btn.open span:nth-child(2){opacity:0;}
.menu-btn.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-panel{
  max-height:0;overflow:hidden;transition:max-height .32s ease;
  background:rgba(250,247,242,.98);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-top:1px solid transparent;
}
.mobile-panel.open{max-height:520px;border-top-color:var(--line);}
.mobile-panel .mp-inner{padding:14px 0 22px;display:flex;flex-direction:column;gap:2px;}
.mobile-panel .mp-link{
  display:block;padding:13px 4px;font-size:16px;color:var(--ink);
  border-bottom:1px solid var(--line);text-decoration:none;
}
.mobile-panel .mp-link.active{color:var(--primary);font-weight:600;}
.mobile-panel .mp-link:hover{color:var(--primary);text-decoration:none;}
.mobile-panel .mp-cta{margin-top:16px;width:100%;}
.site-header.is-scrolled{
  background:rgba(250,247,242,.92);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-1);
}
.site-header.is-scrolled .brand-main{color:var(--ink);}
.site-header.is-scrolled .brand-sub{color:var(--ink-3);}
.site-header.is-scrolled .nav-links .nav-link{color:var(--ink-2);}
.site-header.is-scrolled .nav-links .nav-link:hover{color:var(--primary);background:rgba(20,88,74,.08);}
.site-header.is-scrolled .nav-links .nav-link.active{color:var(--primary);background:rgba(20,88,74,.10);}
.site-header.is-scrolled .icon-btn{color:var(--ink);background:rgba(20,88,74,.06);border-color:var(--line);}
.site-header.is-scrolled .icon-btn:hover{background:rgba(20,88,74,.12);}
.site-header.is-scrolled .menu-btn{border-color:var(--line);background:rgba(20,88,74,.06);}
.site-header.is-scrolled .menu-btn span{background:var(--ink);}

/* ---------- 页头 ---------- */
.page-hero{position:relative;overflow:hidden;padding:150px 0 clamp(56px,7vw,84px);}
.page-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.02);}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(14,63,53,.90) 0%,rgba(14,63,53,.70) 52%,rgba(14,63,53,.58) 100%);
}
.page-hero-inner{position:relative;z-index:2;max-width:860px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(242,246,243,.72);margin-bottom:22px;}
.crumb a{color:rgba(242,246,243,.82);text-decoration:none;}
.crumb a:hover{color:#fff;text-decoration:underline;}
.crumb .sep{color:rgba(242,246,243,.5);}
.crumb .now{color:#fff;font-weight:600;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:1px;color:#F2F6F3;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  border-radius:var(--r-badge);padding:6px 12px;margin-bottom:18px;
}
.page-hero h1{
  font-family:var(--font-serif);
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.25;color:#fff;margin:0 0 16px;font-weight:700;
}
.page-hero-lead{
  color:rgba(242,246,243,.9);font-size:17px;line-height:1.85;
  max-width:660px;margin:0 0 30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 项目清单 ---------- */
.split{display:grid;gap:clamp(28px,4vw,56px);align-items:start;}
@media (min-width:992px){.split{grid-template-columns:minmax(260px,360px) 1fr;}}
.split .side h2{
  font-family:var(--font-serif);font-size:clamp(23px,2.8vw,32px);
  line-height:1.32;margin:0 0 18px;color:var(--ink);
  position:relative;padding-bottom:16px;
}
.split .side h2::after{content:"";position:absolute;left:0;bottom:0;width:40px;height:3px;background:var(--primary);border-radius:2px;}
.split .side p{color:var(--ink-2);font-size:15.5px;margin:0 0 18px;}
.repair-list{list-style:none;margin:0;padding:0;display:grid;gap:14px;}
.repair-item{
  display:flex;gap:18px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.repair-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(20,88,74,.3);}
.repair-icon{
  flex:0 0 44px;width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(20,88,74,.28);color:var(--primary);
  background:rgba(20,88,74,.05);
}
.repair-item h3{font-size:18px;margin:2px 0 6px;color:var(--ink);}
.repair-item p{margin:0;color:var(--ink-2);font-size:15.5px;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.chip{
  display:inline-block;font-size:13.5px;color:var(--primary);
  background:rgba(20,88,74,.08);border-radius:var(--r-badge);padding:6px 12px;
}

/* ---------- 时间线 ---------- */
.timeline{list-style:none;margin:0;padding:0;position:relative;max-width:920px;}
.timeline::before{
  content:"";position:absolute;left:23px;top:14px;bottom:26px;width:2px;
  background:linear-gradient(180deg,var(--primary) 0%,rgba(20,88,74,.10) 100%);
}
.timeline-item{position:relative;padding:0 0 34px 68px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-index{
  position:absolute;left:0;top:0;width:48px;height:48px;border-radius:50%;
  background:var(--accent);color:#fff;font-size:15px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 6px var(--bg-alt);
}
.timeline-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 26px;box-shadow:var(--shadow-1);
}
.timeline-body h3{font-size:19px;margin:0 0 10px;color:var(--ink);}
.timeline-body p{color:var(--ink-2);font-size:15.5px;margin:0 0 10px;}
.timeline-body p:last-child{margin-bottom:0;}
.mini-list{list-style:none;margin:0;padding:0;display:grid;gap:6px;}
.mini-list li{position:relative;padding-left:18px;color:var(--ink-2);font-size:15px;}
.mini-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--primary);opacity:.75;
}
.timeline-note{
  margin-top:14px;font-size:13.5px;color:var(--ink-3);
  display:inline-flex;align-items:center;gap:8px;
}

/* ---------- 深色板块 ---------- */
.dark-band{background:var(--primary-deep);color:#F2F6F3;position:relative;overflow:hidden;}
.dark-band::before{
  content:"";position:absolute;top:-160px;right:-120px;width:420px;height:420px;
  border:1px solid rgba(255,255,255,.10);border-radius:50%;
}
.dark-band::after{
  content:"";position:absolute;bottom:-200px;left:-140px;width:380px;height:380px;
  border:1px solid rgba(255,255,255,.08);border-radius:50%;
}
.dark-band .wrap{position:relative;z-index:2;}
.dark-band .section-head h2{color:#F2F6F3;}
.dark-band .section-head h2::after{background:var(--accent);}
.dark-band .section-head p{color:#B9C9C2;}
.metric-grid{display:grid;gap:20px;grid-template-columns:1fr;margin-bottom:clamp(32px,4vw,48px);}
@media (min-width:768px){.metric-grid{grid-template-columns:repeat(3,1fr);}}
.metric{
  border:1px solid rgba(255,255,255,.22);border-radius:var(--r-card);
  padding:26px 24px;background:rgba(255,255,255,.04);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12);
}
.metric strong{
  display:block;font-size:clamp(26px,3vw,34px);font-weight:700;color:#fff;
  font-variant-numeric:tabular-nums;line-height:1.2;margin-bottom:8px;
}
.metric span{display:block;font-size:14.5px;color:#B9C9C2;line-height:1.7;}
.dark-list{display:grid;gap:16px;grid-template-columns:1fr;}
@media (min-width:768px){.dark-list{grid-template-columns:repeat(2,1fr);}}
.dark-list .dl-item{
  border-left:3px solid rgba(255,255,255,.28);padding:2px 0 2px 18px;
}
.dark-list .dl-item h3{font-size:17px;color:#F2F6F3;margin:0 0 6px;}
.dark-list .dl-item p{margin:0;color:#B9C9C2;font-size:15px;}

/* ---------- 图文块 ---------- */
.figure-split{display:grid;gap:clamp(28px,4vw,52px);align-items:center;}
@media (min-width:992px){.figure-split{grid-template-columns:1.05fr 1fr;}}
.figure-media{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--shadow-2);}
.figure-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.prep-list{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:14px;}
.prep-list li{display:flex;gap:14px;align-items:flex-start;}
.prep-num{
  flex:0 0 30px;width:30px;height:30px;border-radius:50%;
  background:rgba(217,105,74,.12);color:var(--accent);
  font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;margin-top:3px;
}
.prep-list h3{font-size:17px;margin:0 0 4px;color:var(--ink);}
.prep-list p{margin:0;color:var(--ink-2);font-size:15px;}

/* ---------- FAQ ---------- */
.faq-accordion{max-width:820px;}
.faq-accordion .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-card)!important;
  background:#fff;margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-1);
}
.faq-accordion .accordion-button{
  background:#fff;color:var(--ink);font-weight:600;font-size:17px;
  padding:20px 22px;line-height:1.5;box-shadow:none;
  font-family:var(--font-sans);
}
.faq-accordion .accordion-button:not(.collapsed){
  background:var(--bg-alt);color:var(--primary);box-shadow:none;
}
.faq-accordion .accordion-button:focus{
  box-shadow:0 0 0 3px rgba(20,88,74,.18);z-index:3;
}
.faq-accordion .accordion-button::after{
  background-image:none;content:"";width:11px;height:11px;
  border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  transform:rotate(45deg);margin-left:auto;transition:transform .25s ease;
  flex:0 0 auto;
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);}
.faq-accordion .accordion-body{
  padding:18px 22px 24px;color:var(--ink-2);font-size:15.5px;line-height:1.85;
  border-top:1px solid var(--line);
}

/* ---------- CTA 与表单 ---------- */
.cta-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-img);
  box-shadow:var(--shadow-1);overflow:hidden;
  display:grid;gap:0;
}
@media (min-width:992px){.cta-panel{grid-template-columns:1fr 1fr;}}
.cta-copy{padding:clamp(28px,4vw,46px);background:var(--bg-alt);}
.cta-copy h2{
  font-family:var(--font-serif);font-size:clamp(23px,2.8vw,32px);
  line-height:1.32;margin:0 0 16px;color:var(--ink);
}
.cta-copy p{color:var(--ink-2);font-size:15.5px;margin:0 0 14px;}
.cta-copy .chip-row{margin-top:18px;}
.cta-form{padding:clamp(28px,4vw,46px);}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px;font-weight:600;}
.field input,.field textarea{
  width:100%;height:48px;border:1px solid var(--line);border-radius:var(--r-input);
  background:#fff;color:var(--ink);font-size:16px;font-family:inherit;
  padding:0 14px;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:124px;padding:12px 14px;resize:vertical;line-height:1.8;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(20,88,74,.15);
}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3);}
.form-note{font-size:13px;color:var(--ink-3);line-height:1.7;margin:14px 0 0;}
.form-submit{width:100%;}
@media (min-width:576px){.form-submit{width:auto;min-width:180px;}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary-deep);color:#B9C9C2;padding:clamp(48px,6vw,76px) 0 0;}
.footer-grid{display:grid;gap:34px;grid-template-columns:1fr;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;}}
.site-footer .brand-main{color:#F2F6F3;font-size:20px;}
.site-footer .brand-sub{color:rgba(185,201,194,.85);}
.footer-text{font-size:14.5px;line-height:1.8;color:#B9C9C2;margin:18px 0 20px;max-width:340px;}
.footer-social{display:flex;gap:12px;}
.footer-social a{
  width:38px;height:38px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.22);color:#F2F6F3;
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.footer-social a:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.42);transform:translateY(-2px);}
.footer-col h4{
  font-size:16px;color:#F2F6F3;margin:0 0 16px;font-weight:600;
  padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.15);
}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.footer-col ul a{color:#B9C9C2;font-size:14.5px;text-decoration:none;}
.footer-col ul a:hover{color:#F2F6F3;text-decoration:underline;text-underline-offset:4px;}
.footer-contact{font-size:14.5px;line-height:2;color:#B9C9C2;margin:0 0 18px;}
.footer-contact b{color:#F2F6F3;font-weight:600;}
.footer-sub{display:flex;gap:8px;}
.footer-sub input{
  flex:1 1 auto;min-width:0;height:44px;border-radius:var(--r-input);
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);
  color:#F2F6F3;font-size:14.5px;font-family:inherit;padding:0 12px;
}
.footer-sub input::placeholder{color:rgba(185,201,194,.7);}
.footer-sub input:focus{outline:none;border-color:rgba(255,255,255,.5);background:rgba(255,255,255,.1);}
.footer-sub button{
  flex:0 0 auto;height:44px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid transparent;background:#F2F6F3;color:var(--primary-deep);
  font-size:14.5px;font-weight:600;cursor:pointer;transition:background .2s ease,transform .2s ease;
}
.footer-sub button:hover{background:#fff;transform:translateY(-1px);}
.footer-bottom{
  margin-top:clamp(34px,5vw,54px);border-top:1px solid rgba(255,255,255,.15);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
}
.footer-bottom p{margin:0;font-size:13.5px;color:rgba(185,201,194,.85);}
.footer-bottom ul{list-style:none;display:flex;flex-wrap:wrap;gap:18px;margin:0;padding:0;}
.footer-bottom ul a{font-size:13.5px;color:rgba(185,201,194,.85);text-decoration:none;}
.footer-bottom ul a:hover{color:#F2F6F3;text-decoration:underline;}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--primary);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  box-shadow:var(--shadow-1);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease,background .2s ease;
  z-index:1030;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--bg-alt);}

/* ---------- 响应式 ---------- */
@media (max-width:991.98px){
  .header-inner{height:70px;gap:16px;}
  .page-hero{padding-top:126px;}
}
@media (max-width:575.98px){
  body{font-size:16px;}
  .site-header{
    background:rgba(250,247,242,.94);
    -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
    border-bottom-color:var(--line);
    box-shadow:var(--shadow-1);
  }
  .site-header .brand-main{color:var(--ink);}
  .site-header .brand-sub{color:var(--ink-3);}
  .menu-btn{border-color:var(--line);background:rgba(20,88,74,.06);}
  .menu-btn span{background:var(--ink);}
  .page-hero{padding:112px 0 52px;}
  .page-hero-lead{font-size:15.5px;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .timeline-item{padding-left:60px;}
  .timeline-index{width:42px;height:42px;font-size:14px;}
  .timeline::before{left:20px;}
  .repair-item{padding:18px;gap:14px;}
  .to-top{right:16px;bottom:16px;}
  .footer-sub{flex-wrap:wrap;}
  .footer-sub button{width:100%;}
}