/* roulang page: index */
:root{
  --brand:#0E7C7B;
  --brand-deep:#0A5B5A;
  --brand-bright:#16A9A6;
  --brand-soft:#EAF4F3;
  --accent:#FF6B4A;
  --accent-warm:#FFA24B;
  --accent-soft:#FFF1EC;
  --ink:#0B1F1E;
  --ink-2:#4B6664;
  --ink-3:#8AA3A1;
  --bg:#F6F8F7;
  --card:#FFFFFF;
  --card-alt:#F0F6F5;
  --line:#E2EAE8;
  --line-input:#D7E3E1;
  --dark:#07211F;
  --dark-text:#F2FAF8;
  --dark-muted:#A8C6C2;
  --ok:#17A673;
  --warn:#E8A33D;
  --err:#E04F3F;
  --grad:linear-gradient(120deg,#0E7C7B 0%,#16A9A6 58%,#FF6B4A 100%);
  --r-xl:28px;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --r-input:12px;
  --sh-1:0 10px 30px rgba(9,60,58,.07);
  --sh-2:0 18px 44px rgba(9,60,58,.14);
  --sh-3:0 24px 64px rgba(9,60,58,.18);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-deep);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,select,textarea{font-family:inherit;font-size:16px;color:var(--ink);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:3px solid rgba(22,169,166,.45);outline-offset:2px;border-radius:6px;}
.skip{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 18px;border-radius:0 0 12px 0;z-index:999;}
.skip:focus{left:0;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{position:relative;z-index:60;}
.brand-bar{background:#fff;border-bottom:1px solid var(--line);}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none;}
.logo:hover{text-decoration:none;}
.logo-mark{
  width:40px;height:40px;border-radius:14px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;color:#fff;flex:0 0 auto;
  box-shadow:0 8px 20px rgba(14,124,123,.28);
}
.logo-mark svg{width:22px;height:22px;}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-text strong{font-size:19px;font-weight:800;letter-spacing:-0.01em;color:var(--ink);}
.logo-text em{font-style:normal;font-size:12px;color:var(--ink-3);letter-spacing:.04em;}
.brand-links{display:flex;align-items:center;gap:24px;}
.brand-links a.nav-link{font-size:15px;font-weight:600;color:var(--ink-2);text-decoration:none;}
.brand-links a.nav-link:hover{color:var(--brand);}
.hamburger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;}
.hamburger span{position:relative;display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}

/* channel bar */
.channel-bar{background:var(--card-alt);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:55;}
.channel-inner{display:flex;align-items:center;gap:24px;height:52px;}
.channel-nav{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.channel-nav a{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--ink-2);text-decoration:none;border:1px solid transparent;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.channel-nav a:hover{background:var(--brand-soft);color:var(--brand-deep);text-decoration:none;}
.channel-nav a.is-active{background:var(--brand-deep);color:#fff;border-color:var(--brand-deep);}
.tags-wrap{position:relative;flex:1 1 auto;min-width:0;display:flex;justify-content:flex-end;}
.tags-wrap::after{content:"";position:absolute;right:0;top:0;bottom:0;width:32px;background:linear-gradient(90deg,rgba(240,246,245,0),#F0F6F5);pointer-events:none;}
.channel-tags{display:flex;gap:8px;overflow-x:auto;padding-right:32px;scrollbar-width:none;}
.channel-tags::-webkit-scrollbar{display:none;}
.tag{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--ink-2);
  white-space:nowrap;text-decoration:none;transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.tag:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:#C9DAD8;text-decoration:none;}
.tag:active{transform:translateY(1px);}

/* drawer */
.drawer{position:fixed;inset:0;z-index:90;display:none;}
.drawer.is-open{display:block;}
.drawer-mask{position:absolute;inset:0;background:rgba(7,33,31,.45);}
.drawer-panel{
  position:absolute;right:0;top:0;bottom:0;width:min(360px,86vw);background:#fff;
  padding:24px;overflow-y:auto;box-shadow:var(--sh-3);display:flex;flex-direction:column;gap:24px;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-title{font-size:15px;font-weight:700;}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);font-size:18px;color:var(--ink-2);line-height:1;}
.drawer-group h4{font-size:12px;letter-spacing:.08em;color:var(--ink-3);font-weight:700;margin-bottom:10px;}
.drawer-group a{display:block;padding:11px 12px;border-radius:12px;font-size:15px;font-weight:600;color:var(--ink);text-decoration:none;}
.drawer-group a:hover{background:var(--brand-soft);color:var(--brand-deep);text-decoration:none;}
.drawer-group a.is-active{background:var(--brand-soft);color:var(--brand-deep);}
.drawer-cta{margin-top:auto;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:999px;font-size:15px;font-weight:600;
  text-decoration:none;transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
  border:1.5px solid transparent;white-space:nowrap;
}
.btn:hover{text-decoration:none;}
.btn-primary{background:linear-gradient(120deg,#0E7C7B,#0A5B5A);color:#fff;box-shadow:0 10px 24px rgba(10,91,90,.22);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh-2);color:#fff;}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(10,91,90,.2);}
.btn-primary:focus-visible{outline:3px solid rgba(22,169,166,.35);outline-offset:3px;}
.btn-ghost{background:#fff;border-color:#C9DAD8;color:var(--brand-deep);}
.btn-ghost:hover{background:var(--card-alt);border-color:var(--brand);color:var(--brand-deep);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-deep);}
.link-more svg{width:14px;height:14px;transition:transform .2s ease-out;}
.link-more:hover{text-decoration:none;color:var(--brand);}
.link-more:hover svg{transform:translateX(3px);}

/* ---------- hero ---------- */
.hero{padding:56px 0 0;}
.hero-grid{display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-deep);
  background:var(--brand-soft);border:1px solid #D5E8E6;padding:6px 14px;border-radius:999px;margin-bottom:20px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--brand-bright);display:block;}
h1{font-size:clamp(30px,4vw,44px);font-weight:800;line-height:1.18;letter-spacing:-0.01em;color:var(--ink);}
.hero-sub{margin-top:18px;font-size:18px;color:var(--ink-2);line-height:1.7;max-width:520px;}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.pill{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--ink-2);
}
.pill.solid{background:var(--brand-soft);border-color:#D5E8E6;color:var(--brand-deep);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);background:#EAF1F0;}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(14,124,123,.42) 0%,rgba(14,124,123,.12) 42%,rgba(7,33,31,.05) 100%);
}
.hero-badges{position:absolute;top:20px;right:20px;display:flex;flex-direction:column;gap:10px;z-index:2;}
.dark-badge{
  display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border-radius:999px;
  background:rgba(7,33,31,.62);border:1px solid rgba(255,255,255,.18);color:#fff;
  font-size:12px;font-weight:600;backdrop-filter:blur(6px);
}
.dark-badge i{width:6px;height:6px;border-radius:50%;background:var(--accent-warm);display:block;}
.hero-visual-caption{
  position:absolute;left:24px;bottom:20px;right:24px;z-index:2;color:#fff;
  font-size:13px;line-height:1.6;text-shadow:0 2px 10px rgba(0,0,0,.35);
}

/* trust strip */
.trust-strip{
  margin-top:48px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:#fff;
}
.trust-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:20px 0;}
.trust-item{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:600;color:var(--ink-2);}
.trust-item span.ico{
  width:32px;height:32px;border-radius:10px;background:var(--brand-soft);color:var(--brand-deep);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.trust-item svg{width:16px;height:16px;}

/* ---------- sections ---------- */
.section{padding:88px 0;}
.section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{margin-bottom:40px;max-width:720px;}
.section-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.28;letter-spacing:-0.01em;}
.section-head p{margin-top:12px;font-size:14px;color:var(--ink-3);line-height:1.6;}
.section-head.row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}

/* metrics */
.metrics{
  background:var(--dark);border-radius:var(--r-xl);padding:48px 40px;color:var(--dark-text);
  box-shadow:var(--sh-2);
}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.metric{padding:0 32px;border-left:1px solid rgba(255,255,255,.08);}
.metric:first-child{border-left:0;padding-left:0;}
.metric:last-child{padding-right:0;}
.metric-num{
  font-size:clamp(36px,5vw,56px);font-weight:700;line-height:1.1;letter-spacing:-0.02em;
  font-variant-numeric:tabular-nums;color:#fff;font-family:ui-monospace,"DIN Alternate",var(--font);
}
.metric-num em{font-style:normal;font-size:.42em;font-weight:600;color:var(--dark-muted);margin-left:4px;}
.metric-label{margin-top:8px;font-size:13px;color:var(--dark-muted);line-height:1.5;}
.metric-badge{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;padding:5px 12px;border-radius:999px;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);font-size:12px;font-weight:600;color:#fff;
}
.metric-badge i{width:6px;height:6px;border-radius:50%;background:var(--brand-bright);display:block;}
.metric-badge.warm i{background:var(--accent-warm);}

/* matrix */
.matrix{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.span-5{grid-column:span 5;}
.span-7{grid-column:span 7;}
.span-4{grid-column:span 4;}
.span-12{grid-column:span 12;}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);padding:28px;position:relative;overflow:hidden;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D5E8E6;}
.card-lg{border-radius:var(--r-lg);padding:32px;}
.card-lg::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad);}
.card-alt{background:var(--card-alt);border-color:#DCE9E7;}
.icon-block{
  width:48px;height:48px;border-radius:14px;background:var(--brand-soft);border:1px solid #D5E8E6;
  display:flex;align-items:center;justify-content:center;color:var(--brand-deep);margin-bottom:18px;
}
.icon-block svg{width:22px;height:22px;}
.icon-block.warm{background:var(--accent-soft);border-color:#FBDDD2;color:#C6462A;}
.card h3{font-size:21px;font-weight:600;line-height:1.4;color:var(--ink);}
.card h4{font-size:17px;font-weight:600;line-height:1.4;color:var(--ink);}
.card p{margin-top:10px;font-size:14.5px;color:var(--ink-2);line-height:1.7;}
.bullet-list{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.bullet-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink-2);line-height:1.6;}
.bullet-list svg{width:16px;height:16px;flex:0 0 auto;margin-top:3px;color:var(--brand-bright);}
.card .link-more{margin-top:20px;}
.stack{display:flex;flex-direction:column;gap:24px;}
.strip{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  background:var(--card-alt);border-color:#DCE9E7;
}
.strip h3{font-size:20px;}
.strip p{margin-top:6px;}

/* compare */
.compare{display:grid;grid-template-columns:1fr 72px 1fr;gap:24px;align-items:stretch;}
.compare-col{
  border-radius:var(--r-lg);padding:32px;border:1px solid var(--line);background:#fff;box-shadow:var(--sh-1);
}
.compare-col.muted{background:#F4F6F5;border-color:#E6ECEB;box-shadow:none;}
.compare-col.brandcol{background:var(--brand-soft);border:1.5px solid #BFE0DC;}
.compare-col h3{font-size:19px;font-weight:700;}
.compare-col .col-note{margin-top:6px;font-size:13px;color:var(--ink-3);}
.compare-row{margin-top:22px;}
.compare-row .row-top{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px;font-weight:600;color:var(--ink-2);}
.compare-row .row-top b{font-size:13px;font-weight:600;color:var(--ink-3);font-variant-numeric:tabular-nums;}
.bar-track{margin-top:8px;height:8px;border-radius:999px;background:#E8EEED;overflow:hidden;}
.bar-track i{display:block;height:100%;width:var(--w,60%);border-radius:999px;background:#B9C6C4;}
.compare-col.brandcol .bar-track{background:#D6E9E6;}
.compare-col.brandcol .bar-track i{background:linear-gradient(120deg,#0E7C7B,#16A9A6);}
.compare-col.brandcol .row-top b{color:var(--brand-deep);}
.vs{
  align-self:center;justify-self:center;width:56px;height:56px;border-radius:50%;
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;color:var(--brand-deep);letter-spacing:.06em;
}
.conclusion{
  margin-top:32px;display:flex;align-items:center;justify-content:space-between;gap:24px;
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:var(--r-md);
  padding:24px 28px;box-shadow:var(--sh-1);
}
.conclusion p{font-size:15px;color:var(--ink-2);}

/* latest */
.latest-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D5E8E6;}
.post-cover{position:relative;overflow:hidden;background:#EAF1F0;}
.post-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease-out;}
.post-card:hover .post-cover img{transform:scale(1.03);}
.post-badge{
  position:absolute;left:12px;top:12px;padding:5px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-deep);font-size:12px;font-weight:600;border:1px solid #CFE6E3;
}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.post-body h4{font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-body h4 a{color:inherit;text-decoration:none;}
.post-body h4 a:hover{color:var(--brand);}
.post-excerpt{margin-top:10px;font-size:14px;color:var(--ink-2);line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12.5px;color:var(--ink-3);}
.post-meta .go{display:inline-flex;align-items:center;gap:4px;color:var(--brand-deep);font-weight:600;}
.post-meta .go svg{width:13px;height:13px;transition:transform .2s ease-out;}
.post-card:hover .post-meta .go svg{transform:translateX(3px);}
.empty-state{
  grid-column:1/-1;background:#fff;border:1px dashed #CFE0DE;border-radius:var(--r-md);
  padding:48px 24px;text-align:center;
}
.empty-state .empty-ico{
  width:48px;height:48px;border-radius:14px;background:var(--brand-soft);color:var(--brand-deep);
  display:flex;align-items:center;justify-content:center;margin:0 auto 14px;
}
.empty-state p{font-size:14px;color:var(--ink-3);}
.empty-state .btn{margin-top:20px;}

/* faq */
.faq-wrap{max-width:880px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;}
.faq-item{border-top:1px solid var(--line);position:relative;}
.faq-item:first-child{border-top:0;}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);transform:scaleY(0);transform-origin:top;transition:transform .2s ease-out;}
.faq-item.open::before{transform:scaleY(1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:0 28px;min-height:64px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);
  transition:background .2s ease-out,color .2s ease-out;
}
.faq-q:hover{background:#FAFCFC;color:var(--brand-deep);}
.faq-q .plus{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;color:var(--brand-deep);
  transition:transform .2s ease-out,background .2s ease-out;
}
.faq-item.open .faq-q .plus{transform:rotate(45deg);background:var(--brand-soft);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease-out;}
.faq-a p{padding:0 28px 24px;font-size:15px;line-height:1.9;color:var(--ink-2);}
.faq-item.open .faq-a{max-height:320px;}

/* contact */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.contact-info h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.28;}
.contact-info p.lead{margin-top:14px;font-size:15px;color:var(--ink-2);line-height:1.75;}
.contact-list{margin-top:28px;display:flex;flex-direction:column;gap:16px;}
.contact-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--ink-2);line-height:1.6;}
.contact-list svg{width:18px;height:18px;flex:0 0 auto;margin-top:3px;color:var(--brand);}
.service-time{
  margin-top:28px;display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:999px;
  background:var(--accent-soft);border:1px solid #FBDDD2;color:#C6462A;font-size:13px;font-weight:600;
}
.service-time i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block;}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:32px;}
.field{margin-bottom:20px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.field .req{color:var(--accent);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;border:1.5px solid var(--line-input);border-radius:var(--r-input);background:#fff;
  padding:0 14px;height:48px;transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field textarea{height:auto;min-height:120px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#BCD2CF;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(22,169,166,.18);
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.consent{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--ink-2);line-height:1.6;margin-bottom:20px;}
.consent input{width:18px;height:18px;height:18px;margin-top:2px;accent-color:var(--brand);}
.form-note{margin-top:14px;font-size:12.5px;color:var(--ink-3);text-align:center;}
.form-success{
  display:none;background:var(--brand-soft);border:1px solid #CFE6E3;border-left:4px solid var(--ok);
  border-radius:var(--r-input);padding:16px 18px;color:#0A5B5A;font-size:14px;font-weight:600;margin-bottom:20px;
}
.form-success.show{display:block;}
.spinner{
  width:14px;height:14px;border-radius:50%;border:2px solid rgba(255,255,255,.45);
  border-top-color:#fff;animation:spin .7s linear infinite;display:none;
}
.is-loading .spinner{display:inline-block;}
@keyframes spin{to{transform:rotate(360deg);}}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:var(--dark-text);padding:64px 0 0;margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .logo-text strong{color:#fff;}
.footer-brand .logo-text em{color:var(--dark-muted);}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.75;color:var(--dark-muted);max-width:280px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:center;color:var(--dark-muted);transition:background .2s ease-out,color .2s ease-out,transform .2s ease-out;
}
.footer-social a:hover{background:rgba(22,169,166,.22);color:#fff;text-decoration:none;transform:translateY(-2px);}
.footer-social svg{width:16px;height:16px;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--dark-muted);text-decoration:none;transition:color .2s ease-out,transform .2s ease-out;display:inline-block;}
.footer-col a:hover{color:var(--brand-bright);transform:translateX(2px);text-decoration:none;}
.footer-col p{font-size:14px;color:var(--dark-muted);line-height:1.7;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.08);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:12px;color:var(--dark-muted);
}

/* images skeleton */
img{background:#EAF1F0;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero{padding-top:40px;}
  .metrics{padding:40px 28px;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:32px 0;}
  .metric{padding:0 24px;}
  .metric:nth-child(odd){border-left:0;padding-left:0;}
  .metric:nth-child(even){padding-right:0;}
  .matrix{grid-template-columns:repeat(6,1fr);}
  .span-5,.span-7,.span-4{grid-column:span 6;}
  .span-12{grid-column:span 6;}
  .latest-grid{grid-template-columns:repeat(2,1fr);}
  .contact-grid{grid-template-columns:1fr;gap:32px;}
  .compare{grid-template-columns:1fr;gap:16px;}
  .vs{width:44px;height:44px;font-size:12px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:64px 0;}
}
@media (max-width:768px){
  .brand-links{display:none;}
  .hamburger{display:flex;}
  .channel-inner{height:auto;flex-direction:column;align-items:stretch;gap:10px;padding:10px 0;}
  .channel-nav{overflow-x:auto;scrollbar-width:none;padding-bottom:2px;}
  .channel-nav::-webkit-scrollbar{display:none;}
  .tags-wrap{justify-content:flex-start;}
  .container{padding:0 20px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:28px;}
  .section-head.row{flex-direction:column;align-items:flex-start;gap:12px;}
  .trust-inner{grid-template-columns:1fr 1fr;gap:16px;}
  .latest-grid{grid-template-columns:1fr;}
  .strip{flex-direction:column;align-items:flex-start;gap:16px;}
  .faq-q{padding:0 20px;font-size:15px;}
  .faq-a p{padding:0 20px 20px;}
  .form-card{padding:24px;}
  .field-row{grid-template-columns:1fr;gap:0;}
  .conclusion{flex-direction:column;align-items:flex-start;gap:16px;}
}
@media (max-width:520px){
  .logo-text strong{font-size:17px;}
  .logo-text em{font-size:11px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;}
  .metrics{padding:32px 20px;border-radius:20px;}
  .metric-num{font-size:32px;}
  .metric{padding:0 16px;}
  .card,.card-lg{padding:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .compare-col{padding:24px;}
  .hero-visual img{aspect-ratio:4/3;}
  .hero-badges{flex-direction:row;flex-wrap:wrap;top:12px;right:12px;}
  .dark-badge{font-size:11px;padding:7px 11px;}
  .hero-visual-caption{position:static;padding:14px 16px;background:var(--dark);}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category1 */
:root{
  --primary:#0E7C7B;
  --primary-dark:#0A5B5A;
  --primary-light:#16A9A6;
  --primary-soft:#EAF4F3;
  --accent:#FF6B4A;
  --accent-2:#FFA24B;
  --accent-soft:#FFF1EC;
  --ink:#0B1F1E;
  --ink-2:#4B6664;
  --ink-3:#8AA3A1;
  --bg:#F6F8F7;
  --card:#FFFFFF;
  --card-2:#F0F6F5;
  --line:#E2EAE8;
  --line-strong:#C9DAD8;
  --line-input:#D7E3E1;
  --dark:#07211F;
  --dark-text:#F2FAF8;
  --dark-muted:#A8C6C2;
  --grad:linear-gradient(120deg,#0E7C7B 0%,#16A9A6 52%,#FF6B4A 100%);
  --radius-lg:28px;
  --radius:20px;
  --radius-sm:14px;
  --radius-xs:12px;
  --shadow-1:0 10px 30px rgba(9,60,58,.07);
  --shadow-2:0 18px 44px rgba(9,60,58,.14);
  --shadow-3:0 24px 64px rgba(9,60,58,.18);
  --space-1:4px; --space-2:8px; --space-3:12px; --space-4:16px;
  --space-5:24px; --space-6:32px; --space-7:48px; --space-8:64px; --space-9:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary-dark);text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--primary)}
a:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
button{font:inherit;border:0;background:none}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{color:var(--ink);margin:0}
p{margin:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:999px;
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  cursor:pointer;text-decoration:none;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out,border-color .2s ease-out,filter .2s ease-out,color .2s ease-out;
}
.btn-primary{background:linear-gradient(120deg,#0E7C7B,#0A5B5A);color:#fff;box-shadow:0 10px 24px rgba(9,60,58,.18)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--shadow-2);color:#fff}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px rgba(9,60,58,.16)}
.btn-primary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(22,169,166,.35)}
.btn-ghost{background:#fff;border-color:var(--line-strong);color:var(--primary-dark)}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary-dark);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-ghost:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(22,169,166,.28)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;filter:none}

/* ============ 品牌行 ============ */
.site-header{position:relative;z-index:50}
.brand-bar{background:#fff;border-bottom:1px solid var(--line)}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.logo{display:flex;align-items:center;gap:12px;color:var(--ink);min-width:0}
.logo:hover{color:var(--primary-dark)}
.logo-mark{
  flex:0 0 auto;width:42px;height:42px;border-radius:var(--radius-xs);
  background:var(--primary-soft);border:1px solid #CFE5E2;color:var(--primary-dark);
  display:grid;place-items:center;
}
.logo-mark svg{width:22px;height:22px}
.logo-text{min-width:0}
.logo-text strong{display:block;font-size:17px;font-weight:800;line-height:1.25;letter-spacing:-.01em;white-space:nowrap}
.logo-text em{display:block;font-style:normal;font-size:11px;color:var(--ink-3);letter-spacing:.05em;white-space:nowrap}
.brand-links{display:flex;align-items:center;gap:6px}
.nav-link{padding:8px 14px;border-radius:999px;font-size:14px;font-weight:500;color:var(--ink-2);white-space:nowrap}
.nav-link:hover{background:var(--primary-soft);color:var(--primary-dark)}
.nav-link:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-xs);
  border:1px solid var(--line);background:#fff;color:var(--primary-dark);
  align-items:center;justify-content:center;cursor:pointer;
  transition:background-color .2s ease-out,border-color .2s ease-out;
}
.menu-toggle:hover{background:var(--primary-soft);border-color:var(--line-strong)}
.menu-toggle:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.menu-toggle svg{width:20px;height:20px}

/* ============ 频道行 ============ */
.channel-bar{
  position:sticky;top:0;z-index:45;
  background:var(--card-2);border-bottom:1px solid var(--line);
  backdrop-filter:saturate(120%) blur(6px);
}
.channel-inner{display:flex;align-items:center;gap:14px;min-height:52px}
.channel-home{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:13.5px;font-weight:600;color:var(--ink-2);
}
.channel-home:hover{background:var(--primary-soft);color:var(--primary-dark)}
.channel-home svg{width:15px;height:15px}
.channel-scroll{position:relative;flex:1 1 auto;min-width:0;overflow:hidden}
.channel-scroll::after{
  content:"";position:absolute;top:0;right:0;width:32px;height:100%;
  background:linear-gradient(90deg,rgba(240,246,245,0),#F0F6F5);
  pointer-events:none;
}
.channel-tags{
  display:flex;gap:8px;overflow-x:auto;padding:8px 32px 8px 0;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-tags::-webkit-scrollbar{display:none}
.tag-link{
  flex:0 0 auto;padding:7px 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:13.5px;font-weight:500;color:var(--ink-2);white-space:nowrap;
  transition:background-color .2s ease-out,border-color .2s ease-out,color .2s ease-out;
}
.tag-link:hover{background:var(--primary-soft);border-color:#CFE5E2;color:var(--primary-dark)}
.tag-link:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.tag-link.is-active{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;font-weight:600}

/* ============ 移动端抽屉 ============ */
.drawer{
  position:fixed;inset:0;z-index:99;background:#fff;display:none;
  flex-direction:column;padding:20px 24px 32px;overflow-y:auto;
}
.drawer.is-open{display:flex}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:42px;height:42px;border-radius:var(--radius-xs);border:1px solid var(--line);
  background:#fff;color:var(--ink-2);display:grid;place-items:center;cursor:pointer;
}
.drawer-close:hover{background:var(--primary-soft);color:var(--primary-dark)}
.drawer-close svg{width:18px;height:18px}
.drawer-group{margin-top:28px}
.drawer-group h3{font-size:12px;letter-spacing:.1em;color:var(--ink-3);font-weight:600;margin-bottom:12px}
.drawer-list{list-style:none;display:flex;flex-direction:column;gap:8px}
.drawer-list a{
  display:block;padding:13px 16px;border-radius:var(--radius-xs);
  background:var(--card-2);font-size:15px;font-weight:500;color:var(--ink-2);
}
.drawer-list a:hover{background:var(--primary-soft);color:var(--primary-dark)}
.drawer-list a.is-active{background:var(--primary-dark);color:#fff;font-weight:600}
.drawer-actions{margin-top:auto;padding-top:32px;display:flex;flex-direction:column;gap:12px}

/* ============ 主布局 ============ */
.layout{
  display:grid;grid-template-columns:264px minmax(0,1fr);
  gap:40px;padding:32px 0 88px;align-items:start;
}
.side-nav{
  position:sticky;top:76px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-1);padding:20px;
}
.side-nav h2{
  font-size:12px;font-weight:600;letter-spacing:.1em;color:var(--ink-3);
  margin:0 0 12px 6px;text-transform:none;
}
.side-list{list-style:none;display:flex;flex-direction:column;gap:4px}
.side-list a{
  display:block;padding:11px 14px;border-radius:var(--radius-xs);
  font-size:14.5px;font-weight:500;color:var(--ink-2);
  border-left:3px solid transparent;
  transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.side-list a:hover{background:var(--primary-soft);color:var(--primary-dark)}
.side-list a:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.side-list a.is-active{background:var(--primary-soft);border-left-color:var(--primary);color:var(--primary-dark);font-weight:700}
.side-note{
  margin-top:20px;padding:16px;border-radius:var(--radius-sm);
  background:var(--accent-soft);font-size:13px;line-height:1.7;color:#7A3520;
}

/* ============ 面包屑与标题 ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--ink-3);margin-bottom:16px}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{color:#C3D4D2}
.breadcrumb .current{color:var(--primary-dark);font-weight:600}
.page-title{
  font-size:clamp(30px,4vw,44px);font-weight:800;line-height:1.18;
  letter-spacing:-.01em;margin:0 0 14px;
}
.page-sub{font-size:16px;line-height:1.75;color:var(--ink-2);max-width:680px;margin:0 0 24px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:32px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.4;
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.badge-soft{background:var(--primary-soft);color:var(--primary-dark)}
.badge-warn{background:var(--accent-soft);color:#B44527}
.badge-dark{background:rgba(255,255,255,.10);color:#fff;border:1px solid rgba(255,255,255,.18)}
.meta-text{font-size:13px;color:var(--ink-3)}

/* ============ 导语卡 ============ */
.lead-card{
  background:var(--primary-soft);border:1px solid #CFE5E2;
  border-radius:var(--radius);padding:28px;margin-bottom:32px;
}
.lead-card h2{font-size:20px;font-weight:700;line-height:1.4;margin:0 0 16px}
.check-list{list-style:none;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;font-size:15px;line-height:1.7;color:var(--ink-2)}
.check-icon{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;margin-top:3px;
  background:var(--primary);color:#fff;display:grid;place-items:center;
}
.check-icon svg{width:12px;height:12px}

/* ============ 图片 ============ */
.figure{
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-1);margin-bottom:32px;background:#EAF1F0;
}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.figure figcaption{font-size:12.5px;color:var(--ink-3);padding:12px 18px;background:#fff;border-top:1px solid var(--line)}

/* ============ 板块标题 ============ */
.section-head{margin:0 0 24px}
.section-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.28;margin:0 0 8px}
.section-head p{font-size:14px;color:var(--ink-3);line-height:1.6}

/* ============ 步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:32px}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 20px;box-shadow:var(--shadow-1);position:relative;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CFE5E2}
.step-num{
  width:34px;height:34px;border-radius:50%;background:var(--grad);color:#fff;
  font-size:14px;font-weight:700;display:grid;place-items:center;margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;font-weight:600;line-height:1.4;margin:0 0 8px}
.step p{font-size:14px;line-height:1.7;color:var(--ink-2)}

/* ============ 提示条 ============ */
.notice{
  background:var(--accent-soft);border-left:4px solid var(--accent);
  border-radius:var(--radius-sm);padding:18px 22px;margin-bottom:40px;
  font-size:14.5px;line-height:1.8;color:#7A3520;
}
.notice strong{color:#5F2817}

/* ============ 情形卡 ============ */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:40px}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;gap:10px;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CFE5E2}
.case-icon{
  width:44px;height:44px;border-radius:var(--radius-sm);
  background:var(--primary-soft);border:1px solid #CFE5E2;color:var(--primary-dark);
  display:grid;place-items:center;
}
.case-icon svg{width:20px;height:20px}
.case-card h3{font-size:17px;font-weight:600;line-height:1.4}
.case-card p{font-size:14px;line-height:1.7;color:var(--ink-2)}
.text-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:auto;
  font-size:14px;font-weight:600;color:var(--primary-dark);
}
.text-link svg{width:14px;height:14px;transition:transform .2s ease-out}
.text-link:hover svg{transform:translateX(3px)}
.text-link:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px}

/* ============ FAQ ============ */
.faq{display:flex;flex-direction:column;gap:12px;margin-bottom:40px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.faq-item:hover{border-color:#CFE5E2;box-shadow:var(--shadow-2)}
.faq-item[open]{box-shadow:inset 3px 0 0 var(--primary),var(--shadow-1);border-color:#CFE5E2}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink);
  cursor:pointer;list-style:none;transition:color .2s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary-dark)}
.faq-item summary:focus-visible{outline:2px solid var(--primary);outline-offset:-4px}
.faq-item[open] summary{color:var(--primary-dark)}
.plus{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  background:var(--primary-soft);color:var(--primary-dark);
  display:grid;place-items:center;transition:transform .2s ease-out,background-color .2s ease-out;
}
.plus svg{width:12px;height:12px}
.faq-item[open] .plus{transform:rotate(45deg);background:var(--primary);color:#fff}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.9;color:var(--ink-2)}

/* ============ CTA 横条 ============ */
.cta-bar{
  position:relative;overflow:hidden;
  background:var(--dark);border-radius:var(--radius);
  padding:36px;display:flex;align-items:center;justify-content:space-between;
  gap:24px;flex-wrap:wrap;color:var(--dark-text);box-shadow:var(--shadow-2);
}
.cta-bar::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad)}
.cta-bar h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.35;color:#fff;margin:0 0 8px}
.cta-bar p{font-size:14.5px;line-height:1.7;color:var(--dark-muted);max-width:520px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-bar .btn-ghost{background:transparent;border-color:rgba(255,255,255,.28);color:#fff}
.cta-bar .btn-ghost:hover{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.5);color:#fff}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:var(--dark-text);padding-top:64px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand .logo-mark{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);color:#16A9A6}
.footer-brand .logo-text strong{color:#fff;font-size:16px;white-space:normal}
.footer-brand .logo-text em{color:var(--dark-muted)}
.footer-desc{font-size:14px;line-height:1.8;color:var(--dark-muted);margin-bottom:20px;max-width:320px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:36px;height:36px;border-radius:50%;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);
  display:grid;place-items:center;color:var(--dark-muted);
  transition:background-color .2s ease-out,color .2s ease-out,transform .2s ease-out;
}
.footer-social a:hover{background:var(--primary-light);color:#fff;transform:translateY(-2px)}
.footer-social a:focus-visible{outline:2px solid var(--primary-light);outline-offset:2px}
.footer-social svg{width:16px;height:16px}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin:0 0 16px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--dark-muted);display:inline-block;transition:color .2s ease-out,transform .2s ease-out}
.footer-col a:hover{color:var(--primary-light);transform:translateX(2px)}
.footer-col p{font-size:14px;color:var(--dark-muted);line-height:1.9}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 28px;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:12px;color:var(--dark-muted);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .layout{grid-template-columns:minmax(0,1fr);gap:32px;padding-top:24px}
  .side-nav{position:static;padding:16px;overflow:hidden}
  .side-nav h2{margin-bottom:10px}
  .side-list{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px;scrollbar-width:none}
  .side-list::-webkit-scrollbar{display:none}
  .side-list li{flex:0 0 auto}
  .side-list a{
    border-left:0;border:1px solid var(--line);border-radius:999px;
    padding:8px 16px;font-size:13.5px;white-space:nowrap;background:#fff;
  }
  .side-list a.is-active{border-color:var(--primary-dark);background:var(--primary-dark);color:#fff}
  .side-note{display:none}
  .steps{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .brand-links{display:none}
  .menu-toggle{display:inline-flex}
  .logo-text strong{font-size:15.5px}
  .logo-text em{font-size:10.5px}
  .channel-inner{gap:10px}
  .channel-home{padding:6px 13px;font-size:13px}
  .page-title{font-size:clamp(26px,6vw,32px)}
  .lead-card{padding:22px}
  .steps{grid-template-columns:1fr;gap:16px;margin-bottom:28px}
  .step{margin-left:18px}
  .step::before{
    content:"";position:absolute;left:-19px;top:0;bottom:-16px;
    border-left:2px dashed #CFE5E2;
  }
  .step:last-child::before{bottom:auto;height:44px}
  .case-grid{grid-template-columns:1fr}
  .cta-bar{padding:26px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-item summary{padding:16px 18px;font-size:15px}
  .faq-body{padding:0 18px 18px}
}
@media (max-width:480px){
  body{font-size:15.5px}
  .layout{padding-bottom:56px}
  .logo-mark{width:38px;height:38px}
  .logo-text strong{font-size:14.5px;white-space:normal;line-height:1.3}
  .logo-text em{display:none}
  .btn{width:100%;padding:0 20px}
  .btn-sm{width:auto}
  .footer-grid{grid-template-columns:1fr}
  .figure img{aspect-ratio:4/3}
  .cta-bar h2{font-size:19px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --primary:#0E7C7B;
  --primary-dark:#0A5B5A;
  --primary-light:#16A9A6;
  --primary-soft:#EAF4F3;
  --accent:#FF6B4A;
  --accent-warm:#FFA24B;
  --accent-soft:#FFF1EC;
  --brand-grad:linear-gradient(120deg,#0E7C7B 0%,#16A9A6 55%,#FF6B4A 100%);
  --ink:#0B1F1E;
  --ink-2:#4B6664;
  --ink-3:#8AA3A1;
  --bg:#F6F8F7;
  --card:#FFFFFF;
  --card-2:#F0F6F5;
  --border:#E2EAE8;
  --input-border:#D7E3E1;
  --deep:#07211F;
  --deep-text:#F2FAF8;
  --deep-text-2:#A8C6C2;
  --success:#17A673;
  --warning:#E8A33D;
  --error:#E04F3F;
  --r-xl:28px;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --r-xs:12px;
  --sh-1:0 10px 30px rgba(9,60,58,.07);
  --sh-2:0 18px 44px rgba(9,60,58,.14);
  --sh-3:0 24px 64px rgba(9,60,58,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--primary-dark);text-decoration:none;transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out,transform .18s ease-out}
a:hover{color:var(--primary)}
a:focus-visible,button:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p{margin:0}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
svg{display:block}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:999px;
  font-weight:600;font-size:15px;border:1.5px solid transparent;
  white-space:nowrap;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out,filter .2s ease-out;
}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-primary{background:linear-gradient(120deg,#0A5B5A,#0E7C7B 58%,#16A9A6);color:#fff;box-shadow:0 8px 20px rgba(14,124,123,.26)}
.btn-primary:hover{color:#fff;filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh-2);text-decoration:none}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(14,124,123,.22)}
.btn-ghost{background:#fff;border-color:#C9DAD8;color:var(--primary-dark)}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary-dark);text-decoration:none}
.btn-ghost:active{transform:translateY(0);background:#E1F0EF}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary-dark);font-weight:600;font-size:15px;background:none;padding:0;height:auto}
.btn-link svg{width:16px;height:16px;transition:transform .18s ease-out}
.btn-link:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.btn-link:hover svg{transform:translateX(3px)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;filter:none}

/* ---------- 徽章与标签 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.4}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;flex:0 0 auto}
.badge-soft{background:var(--primary-soft);color:var(--primary-dark)}
.badge-warm{background:var(--accent-soft);color:#C7432A}
.badge-deep{background:rgba(255,255,255,.10);color:#fff;border:1px solid rgba(255,255,255,.18)}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--border);font-size:13px;color:var(--ink-2);
  transition:all .18s ease-out;
}
.tag:hover{background:var(--primary-soft);border-color:#CFE5E3;color:var(--primary-dark);text-decoration:none}

/* ---------- 页头 ---------- */
.site-header{position:relative;z-index:140}
.brand-bar{background:#fff;border-bottom:1px solid var(--border)}
.brand-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:12px;color:var(--ink)}
.logo:hover{text-decoration:none;color:var(--ink)}
.logo-mark{width:44px;height:44px;border-radius:14px;background:var(--primary-soft);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;border:1px solid #CFE5E3;flex:0 0 auto}
.logo-mark svg{width:24px;height:24px}
.logo-text{display:flex;flex-direction:column;line-height:1.2;gap:2px}
.logo-text strong{font-size:19px;font-weight:800;letter-spacing:-.01em}
.logo-text em{font-style:normal;font-size:11.5px;color:var(--ink-3);letter-spacing:.06em}
.brand-links{display:flex;align-items:center;gap:28px}
.nav-link{font-size:15px;font-weight:500;color:var(--ink-2)}
.nav-link:hover{color:var(--primary);text-decoration:none}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);background:#fff;align-items:center;justify-content:center;color:var(--ink)}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative;transition:background .18s ease-out}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;transition:transform .2s ease-out,top .2s ease-out}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{top:0;transform:rotate(45deg)}
.nav-toggle.is-open span::after{top:0;transform:rotate(-45deg)}

.channel-bar{background:var(--card-2);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:120}
.channel-inner{display:flex;align-items:center;gap:16px;height:52px;overflow:hidden}
.channel-label{font-size:12px;font-weight:700;color:var(--ink-3);letter-spacing:.12em;flex:0 0 auto}
.channel-list{
  display:flex;align-items:center;gap:8px;flex:1;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  padding:6px 40px 6px 0;
  -webkit-mask-image:linear-gradient(to right,#000 calc(100% - 32px),transparent);
  mask-image:linear-gradient(to right,#000 calc(100% - 32px),transparent);
}
.channel-list::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  background:#fff;border:1px solid var(--border);font-size:13.5px;color:var(--ink-2);
  white-space:nowrap;transition:all .18s ease-out;
}
.chip:hover{background:var(--primary-soft);color:var(--primary-dark);border-color:#CFE5E3;text-decoration:none}
.chip.is-active{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;font-weight:600}
.chip.is-active:hover{background:var(--primary-dark);color:#fff}

.mobile-drawer{
  display:none;position:absolute;left:0;right:0;top:72px;
  background:#fff;border-bottom:1px solid var(--border);
  box-shadow:var(--sh-3);padding:20px 24px 24px;z-index:130;
  max-height:calc(100vh - 72px);overflow-y:auto;
}
.mobile-drawer.is-open{display:block}
.drawer-group{margin-bottom:20px}
.drawer-group h5{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--ink-3);margin-bottom:8px}
.drawer-group a{display:block;padding:10px 0;border-bottom:1px solid var(--border);font-size:15px;color:var(--ink-2)}
.drawer-group a:hover{color:var(--primary);text-decoration:none}
.drawer-cta{width:100%;margin-top:8px}

/* ---------- 阅读进度 ---------- */
.read-progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--brand-grad);z-index:300;transition:width .1s linear}

/* ---------- 主体 ---------- */
.page-main{padding:32px 0 88px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--ink-3);margin-bottom:24px}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--primary);text-decoration:none}
.breadcrumb .sep{color:#C3D4D2}
.breadcrumb .current{color:var(--primary-dark);font-weight:600;max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.article-head{max-width:900px;margin-bottom:20px}
.article-head h1{
  font-size:clamp(28px,3.4vw,42px);font-weight:800;line-height:1.24;
  letter-spacing:-.01em;margin:16px 0;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;font-size:13.5px;color:var(--ink-3)}
.meta-row span{display:inline-flex;align-items:center;gap:6px}
.meta-row .vsep{width:1px;height:12px;background:#D5E2E0;padding:0}

.share-row{display:flex;align-items:center;gap:10px;margin:24px 0 28px;flex-wrap:wrap}
.share-row .label{font-size:13px;color:var(--ink-3);margin-right:4px}
.share-btn{
  width:36px;height:36px;border-radius:50%;background:#fff;color:var(--primary-dark);
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--border);transition:all .18s ease-out;
}
.share-btn svg{width:16px;height:16px}
.share-btn:hover{background:var(--primary-soft);color:var(--primary);transform:translateY(-2px);box-shadow:var(--sh-1)}

.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start}
.article-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
}
.article-cover{background:#EAF1F0}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.post-content{padding:32px 40px 40px;font-size:17px;line-height:1.85;color:var(--ink);max-width:760px}
.post-content h2{
  font-size:24px;font-weight:700;line-height:1.35;margin:40px 0 16px;
  padding-left:16px;position:relative;
}
.post-content h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--brand-grad);
}
.post-content h3{font-size:19px;font-weight:600;line-height:1.45;margin:24px 0 12px}
.post-content p{margin:0 0 18px}
.post-content ul,.post-content ol{margin:0 0 18px;padding-left:22px;line-height:1.9}
.post-content ul{list-style:disc}
.post-content ol{list-style:decimal}
.post-content li{margin-bottom:8px}
.post-content li::marker{color:var(--primary)}
.post-content blockquote{
  margin:24px 0;padding:16px 24px;background:var(--primary-soft);
  border-left:4px solid var(--primary);border-radius:0 14px 14px 0;color:var(--ink-2);
}
.post-content img{border-radius:14px;margin:24px auto;width:100%}
.post-content figure{margin:24px 0}
.post-content figcaption{font-size:12px;color:var(--ink-3);text-align:center;margin-top:10px}
.post-content a{color:var(--primary-dark);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px}
.post-content a:hover{color:var(--primary)}
.post-content table{width:100%;border-collapse:collapse;margin:24px 0;display:block;overflow-x:auto}
.post-content th,.post-content td{border:1px solid var(--border);padding:10px 14px;text-align:left;font-size:15px}
.post-content th{background:var(--card-2);font-weight:600;white-space:nowrap}
.post-content strong{font-weight:700}
.post-content code{background:var(--card-2);padding:2px 6px;border-radius:6px;font-size:14px}

.empty-state{padding:56px 24px;text-align:center}
.empty-state .icon{
  width:56px;height:56px;border-radius:18px;background:var(--primary-soft);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.empty-state .icon svg{width:26px;height:26px}
.empty-state p{font-size:14px;color:var(--ink-3);margin-bottom:20px}

/* ---------- 侧栏 ---------- */
.sidebar{position:sticky;top:76px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:24px}
.side-card h3{font-size:16px;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:8px;color:var(--ink)}
.side-card h3 svg{width:18px;height:18px;color:var(--primary)}
.side-list li{padding:12px 0;border-bottom:1px dashed var(--border)}
.side-list li:first-child{padding-top:0}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list a{display:block;font-size:14px;font-weight:600;line-height:1.55;color:var(--ink)}
.side-list a:hover{color:var(--primary);text-decoration:none}
.side-list .meta{font-size:12px;color:var(--ink-3);margin-top:4px}
.side-cta{background:var(--deep);border-color:transparent}
.side-cta h3{color:#fff}
.side-cta p{font-size:13.5px;line-height:1.75;color:var(--deep-text-2);margin-bottom:16px}
.side-cta .btn{width:100%;height:44px;font-size:14px}

/* ---------- 文末 ---------- */
.post-footer{margin-top:32px;display:flex;flex-direction:column;gap:32px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.tag-row .label{font-size:13px;color:var(--ink-3);margin-right:4px}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.post-nav-card{
  display:block;background:var(--card);border:1px solid var(--border);border-radius:var(--r-md);
  padding:20px;box-shadow:var(--sh-1);transition:all .2s ease-out;color:var(--ink);
}
.post-nav-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CFE5E3;text-decoration:none;color:var(--ink)}
.post-nav-card .dir{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--ink-3);margin-bottom:8px}
.post-nav-card .dir svg{width:14px;height:14px;color:var(--primary)}
.post-nav-card strong{display:block;font-size:15px;font-weight:600;line-height:1.55}
.post-nav-card.is-next{text-align:right}
.post-nav-card.is-next .dir{justify-content:flex-end}

.back-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--primary-dark)}
.back-link svg{width:16px;height:16px}
.back-link:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}

.section-head{margin-bottom:20px}
.section-head h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.3}
.section-head p{font-size:14px;color:var(--ink-3);margin-top:6px}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.rel-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
  color:var(--ink);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CFE5E3;text-decoration:none;color:var(--ink)}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:#EAF1F0}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease-out}
.rel-card:hover .rel-thumb img{transform:scale(1.03)}
.rel-body{padding:16px 18px 20px}
.rel-body h4{font-size:16px;font-weight:600;line-height:1.5;margin-bottom:8px}
.rel-body p{font-size:13px;color:var(--ink-2);line-height:1.65}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--deep);color:var(--deep-text);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand .logo:hover{color:#fff;text-decoration:none}
.site-footer .logo-mark{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);color:var(--primary-light)}
.site-footer .logo-text strong{color:#fff}
.site-footer .logo-text em{color:var(--deep-text-2)}
.footer-desc{font-size:14px;color:var(--deep-text-2);line-height:1.8;margin-bottom:20px;max-width:320px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);color:var(--deep-text-2);
  display:inline-flex;align-items:center;justify-content:center;transition:all .18s ease-out;
}
.footer-social a:hover{background:var(--primary);border-color:var(--primary);color:#fff;transform:translateY(-2px)}
.footer-social svg{width:17px;height:17px}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--deep-text-2);display:inline-block;transition:all .18s ease-out}
.footer-col a:hover{color:var(--primary-light);transform:translateX(2px);text-decoration:none}
.footer-col p{font-size:14px;color:var(--deep-text-2);line-height:1.8;margin-bottom:8px}
.footer-bottom-wrap{border-top:1px solid rgba(255,255,255,.08)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;padding-top:20px;padding-bottom:20px;font-size:12px;color:var(--deep-text-2)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .sidebar{position:static;top:auto;display:grid;grid-template-columns:1fr 1fr;gap:20px}
  .side-cta{grid-column:1 / -1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  .brand-links{display:none}
  .nav-toggle{display:inline-flex}
  .channel-bar{display:none}
  .page-main{padding:24px 0 64px}
  .post-content{padding:24px 24px 32px;font-size:16.5px}
  .breadcrumb .current{max-width:200px}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .brand-bar-inner{height:64px;gap:12px}
  .mobile-drawer{top:64px}
  .logo-text strong{font-size:16px}
  .logo-text em{font-size:10.5px}
  .logo-mark{width:40px;height:40px;border-radius:12px}
  .page-main{padding:20px 0 56px}
  .article-head h1{font-size:26px;line-height:1.3}
  .meta-row{font-size:12.5px;gap:6px 10px}
  .meta-row .vsep{display:none}
  .post-content{padding:20px 20px 28px;font-size:16px;line-height:1.8}
  .post-content h2{font-size:20px;margin-top:32px}
  .post-content h3{font-size:17.5px}
  .sidebar{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .post-nav-card.is-next{text-align:left}
  .post-nav-card.is-next .dir{justify-content:flex-start}
  .rel-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .site-footer{padding-top:48px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .share-row{margin:20px 0 24px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --brand:#0E7C7B;
  --brand-deep:#0A5B5A;
  --brand-light:#16A9A6;
  --brand-soft:#EAF4F3;
  --coral:#FF6B4A;
  --amber:#FFA24B;
  --coral-soft:#FFF1EC;
  --ink:#0B1F1E;
  --ink-2:#4B6664;
  --ink-3:#8AA3A1;
  --bg:#F6F8F7;
  --card:#FFFFFF;
  --card-2:#F0F6F5;
  --line:#E2EAE8;
  --line-input:#D7E3E1;
  --dark:#07211F;
  --dark-ink:#F2FAF8;
  --dark-ink-2:#A8C6C2;
  --ok:#17A673;
  --warn:#E8A33D;
  --err:#E04F3F;
  --grad:linear-gradient(120deg,#0E7C7B 0%,#16A9A6 55%,#FF6B4A 100%);
  --r-lg:28px;
  --r-md:20px;
  --r-sm:14px;
  --r-xs:12px;
  --sh-1:0 10px 30px rgba(9,60,58,.07);
  --sh-2:0 18px 44px rgba(9,60,58,.14);
  --sh-3:0 24px 64px rgba(9,60,58,.18);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --mono:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
svg{display:block;}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand-light);
  outline-offset:2px;
  border-radius:8px;
}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 顶部品牌行 ---------- */
.site-header{position:relative;z-index:60;}
.brand-row{
  background:var(--card);
  border-bottom:1px solid var(--line);
}
.brand-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
}
.logo{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.logo-mark{
  width:42px;
  height:42px;
  border-radius:14px;
  background:var(--grad);
  color:#fff;
  display:grid;
  place-items:center;
  box-shadow:0 10px 24px rgba(14,124,123,.28);
  flex:0 0 auto;
}
.logo-mark svg{width:22px;height:22px;}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-text strong{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
.logo-text em{font-style:normal;font-size:11px;color:var(--ink-3);letter-spacing:.02em;margin-top:3px;}
.brand-links{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:24px;
}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  padding:6px 0;
  transition:color .2s ease-out;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:0;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transition:width .2s ease-out;
}
.nav-link:hover{color:var(--brand-deep);}
.nav-link:hover::after{width:100%;}

.menu-toggle{
  display:none;
  margin-left:auto;
  width:44px;
  height:44px;
  border-radius:14px;
  border:1px solid var(--line);
  background:var(--card);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  transition:background .2s ease-out,border-color .2s ease-out;
}
.menu-toggle span{
  display:block;
  width:20px;
  height:2px;
  border-radius:2px;
  background:var(--brand-deep);
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.menu-toggle:hover{background:var(--brand-soft);border-color:#C9DAD8;}

/* ---------- 频道行 ---------- */
.channel-row{
  background:var(--card-2);
  border-bottom:1px solid var(--line);
  position:sticky;
  top:0;
  z-index:50;
  backdrop-filter:saturate(180%) blur(6px);
}
.channel-inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:52px;
}
.channel-links{
  display:flex;
  align-items:center;
  gap:6px;
  flex:0 0 auto;
}
.channel-link{
  font-size:14px;
  font-weight:500;
  color:var(--ink-2);
  padding:6px 14px;
  border-radius:999px;
  transition:background .16s ease-out,color .16s ease-out;
  white-space:nowrap;
}
.channel-link:hover{background:var(--brand-soft);color:var(--brand-deep);}
.channel-link.is-active{background:var(--brand-deep);color:#fff;box-shadow:0 8px 18px rgba(10,91,90,.24);}
.channel-tags{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:8px;
  padding:8px 0;
  overflow-x:auto;
  scrollbar-width:none;
  -webkit-mask-image:linear-gradient(to right,#000 calc(100% - 32px),transparent);
  mask-image:linear-gradient(to right,#000 calc(100% - 32px),transparent);
}
.channel-tags::-webkit-scrollbar{display:none;}
.tag-pill{
  flex:0 0 auto;
  font-size:13px;
  font-weight:600;
  color:var(--brand-deep);
  background:#fff;
  border:1px solid var(--line);
  border-radius:999px;
  padding:7px 16px;
  white-space:nowrap;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out;
}
.tag-pill:hover{background:var(--brand-soft);border-color:#C9DAD8;transform:translateY(-1px);}
.tag-pill.is-active{
  background:var(--brand-deep);
  border-color:var(--brand-deep);
  color:#fff;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,border-color .2s ease-out,filter .2s ease-out,color .2s ease-out;
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-primary{
  background:linear-gradient(120deg,#0E7C7B 0%,#0A5B5A 100%);
  color:#fff;
  box-shadow:0 8px 20px rgba(10,91,90,.22);
}
.btn-primary:hover{
  filter:brightness(1.06);
  transform:translateY(-1px);
  box-shadow:var(--sh-2);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(10,91,90,.2);}
.btn-primary:focus-visible{outline:3px solid rgba(22,169,166,.35);outline-offset:2px;}
.btn-ghost{
  background:#fff;
  border-color:#C9DAD8;
  color:var(--brand-deep);
}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-light{
  background:#fff;
  color:var(--brand-deep);
  box-shadow:0 10px 24px rgba(0,0,0,.18);
}
.btn-light:hover{transform:translateY(-1px);box-shadow:0 18px 44px rgba(0,0,0,.24);}
.btn-light:active{transform:translateY(0);}
.btn[disabled],.btn.is-disabled{
  opacity:.45;
  cursor:not-allowed;
  box-shadow:none;
  transform:none;
}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--brand-deep);
  transition:color .2s ease-out;
}
.btn-text svg{width:16px;height:16px;transition:transform .2s ease-out;}
.btn-text:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.btn-text:hover svg{transform:translateX(3px);}

/* ---------- 首屏横幅 ---------- */
.section{padding-top:88px;}
.section--hero{padding-top:32px;}

.hero-banner{
  position:relative;
  isolation:isolate;
  border-radius:var(--r-lg);
  overflow:hidden;
  min-height:340px;
  display:flex;
  align-items:center;
  box-shadow:var(--sh-2);
  background:#0A5B5A;
}
.hero-bg{
  position:absolute;
  inset:0;
  z-index:-2;
  width:100%;
  height:100%;
  object-fit:cover;
  background:var(--brand-soft);
}
.hero-veil{
  position:absolute;
  inset:0;
  z-index:-1;
  background:linear-gradient(100deg,rgba(7,33,31,.88) 0%,rgba(10,91,90,.74) 52%,rgba(7,33,31,.40) 100%);
}
.hero-copy{
  position:relative;
  padding:48px;
  max-width:760px;
  color:#fff;
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:12px;
  color:rgba(242,250,248,.72);
  margin-bottom:16px;
}
.breadcrumb a{color:rgba(242,250,248,.72);transition:color .16s ease-out;}
.breadcrumb a:hover{color:#fff;}
.breadcrumb span.sep{color:rgba(242,250,248,.42);}
.breadcrumb .current{color:#fff;font-weight:600;}
.hero-copy h1{
  font-size:clamp(30px,4vw,44px);
  font-weight:800;
  line-height:1.18;
  letter-spacing:-.01em;
  color:#fff;
}
.hero-copy .hero-sub{
  margin-top:16px;
  font-size:16px;
  line-height:1.75;
  color:rgba(242,250,248,.86);
  max-width:560px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}
.hero-actions .btn-ghost{
  background:rgba(255,255,255,.12);
  border-color:rgba(255,255,255,.36);
  color:#fff;
  backdrop-filter:blur(4px);
}
.hero-actions .btn-ghost:hover{
  background:rgba(255,255,255,.22);
  border-color:rgba(255,255,255,.6);
}

/* ---------- 数据徽章小卡 ---------- */
.stat-row{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:-40px;
  padding:0 24px;
  position:relative;
  z-index:3;
}
.stat-card{
  display:flex;
  align-items:center;
  gap:16px;
  padding:20px 24px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.stat-icon{
  width:44px;
  height:44px;
  flex:0 0 auto;
  border-radius:14px;
  background:var(--brand-soft);
  color:var(--brand-deep);
  display:grid;
  place-items:center;
  border:1px solid #CFE6E4;
}
.stat-icon svg{width:22px;height:22px;}
.stat-num{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-size:20px;
  font-weight:700;
  color:var(--brand-deep);
  line-height:1.3;
}
.stat-label{
  font-size:13px;
  color:var(--ink-2);
  line-height:1.5;
}

/* ---------- 板块标题 ---------- */
.section-head{
  max-width:760px;
  margin-bottom:40px;
}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--brand-deep);
  background:var(--brand-soft);
  border:1px solid #CFE6E4;
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--brand);
}
.section-head h2{
  font-size:clamp(24px,2.6vw,32px);
  font-weight:700;
  line-height:1.28;
  letter-spacing:-.01em;
  color:var(--ink);
}
.section-head p{
  margin-top:12px;
  font-size:14px;
  color:var(--ink-3);
  line-height:1.7;
}

/* ---------- 图文交错 ---------- */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
}
.split + .split{margin-top:88px;}
.split-media{
  border-radius:24px;
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  background:var(--brand-soft);
}
.split-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform .24s ease-out;
}
.split-media:hover img{transform:scale(1.03);}
.split.reverse .split-media{order:2;}
.split-body h2{
  font-size:clamp(24px,2.6vw,32px);
  font-weight:700;
  line-height:1.28;
  letter-spacing:-.01em;
}
.split-body p{
  margin-top:16px;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
}
.badge-row{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:24px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  font-weight:600;
  color:var(--brand-deep);
  background:var(--brand-soft);
  border:1px solid #CFE6E4;
  border-radius:999px;
  padding:6px 14px;
}
.badge::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--brand-light);
}
.badge.coral{
  color:#B24127;
  background:var(--coral-soft);
  border-color:#FBD8CE;
}
.badge.coral::before{background:var(--coral);}

/* ---------- 安全清单大卡 ---------- */
.safety-card{
  position:relative;
  overflow:hidden;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:40px;
  box-shadow:var(--sh-1);
}
.safety-card::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:4px;
  background:var(--grad);
}
.safety-card .section-head{margin-bottom:32px;}
.check-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}
.check-item{
  display:flex;
  gap:14px;
  padding:20px;
  border-radius:var(--r-sm);
  background:var(--card-2);
  border:1px solid transparent;
  transition:background .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out;
}
.check-item:hover{
  background:#fff;
  border-color:var(--line);
  box-shadow:var(--sh-1);
  transform:translateY(-2px);
}
.check-icon{
  width:36px;
  height:36px;
  flex:0 0 auto;
  border-radius:12px;
  background:#fff;
  border:1px solid #CFE6E4;
  color:var(--brand-deep);
  display:grid;
  place-items:center;
}
.check-icon svg{width:18px;height:18px;}
.check-item h3{
  font-size:17px;
  font-weight:600;
  line-height:1.4;
  color:var(--ink);
}
.check-item p{
  margin-top:6px;
  font-size:14px;
  line-height:1.7;
  color:var(--ink-2);
}
.safety-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  margin-top:32px;
  padding-top:28px;
  border-top:1px solid var(--line);
}
.safety-foot p{
  font-size:14px;
  color:var(--ink-3);
  max-width:640px;
}

/* ---------- FAQ ---------- */
.faq-list{
  max-width:880px;
  margin:0 auto;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:24px;
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-item summary{
  position:relative;
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  gap:16px;
  padding:22px 24px;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  transition:background .2s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";
  position:absolute;
  left:0;
  top:16px;
  bottom:16px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--brand);
  opacity:0;
  transition:opacity .2s ease-out;
}
.faq-item summary:hover{background:var(--card-2);}
.faq-item[open] summary::before{opacity:1;}
.faq-item[open] summary{background:var(--brand-soft);}
.faq-icon{
  margin-left:auto;
  width:28px;
  height:28px;
  flex:0 0 auto;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand-deep);
  display:grid;
  place-items:center;
  transition:transform .2s ease-out,background .2s ease-out,color .2s ease-out;
}
.faq-icon svg{width:14px;height:14px;}
.faq-item[open] .faq-icon{
  transform:rotate(45deg);
  background:var(--brand-deep);
  color:#fff;
}
.faq-body{
  padding:0 24px 24px 44px;
  font-size:15px;
  line-height:1.9;
  color:var(--ink-2);
}

/* ---------- 结尾转化带 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  min-height:96px;
  padding:28px 40px;
  border-radius:var(--r-md);
  background:var(--dark);
  color:#fff;
  box-shadow:var(--sh-1);
}
.cta-band::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:6px;
  background:var(--grad);
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;
  top:-80px;
  width:260px;
  height:260px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(22,169,166,.34),transparent 68%);
  pointer-events:none;
}
.cta-band h2{
  font-size:clamp(20px,2.2vw,26px);
  font-weight:700;
  line-height:1.35;
  color:#fff;
}
.cta-band p{
  margin-top:8px;
  font-size:14px;
  color:var(--dark-ink-2);
  line-height:1.7;
}
.cta-band .cta-actions{
  position:relative;
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  flex:0 0 auto;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--dark);
  color:var(--dark-ink-2);
  padding:64px 0 0;
  margin-top:88px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand .logo-text strong{color:#fff;}
.footer-brand .logo-text em{color:var(--dark-ink-2);}
.footer-desc{
  margin:18px 0 20px;
  font-size:14px;
  line-height:1.8;
  color:var(--dark-ink-2);
  max-width:320px;
}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:36px;
  height:36px;
  border-radius:12px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  color:var(--dark-ink-2);
  display:grid;
  place-items:center;
  transition:background .2s ease-out,color .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
}
.footer-social a svg{width:18px;height:18px;}
.footer-social a:hover{
  color:#fff;
  background:rgba(22,169,166,.28);
  border-color:rgba(22,169,166,.4);
  transform:translateY(-2px);
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{
  display:inline-block;
  font-size:14px;
  color:var(--dark-ink-2);
  transition:color .16s ease-out,transform .16s ease-out;
}
.footer-col a:hover{color:var(--brand-light);transform:translateX(2px);}
.footer-col p{
  font-size:14px;
  line-height:1.7;
  color:var(--dark-ink-2);
  margin-bottom:10px;
}
.footer-bottom{
  margin-top:48px;
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  font-size:12px;
  color:#7E9C98;
}
.footer-bottom a{color:#7E9C98;}
.footer-bottom a:hover{color:var(--brand-light);}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;
  inset:0;
  z-index:90;
  background:rgba(7,33,31,.52);
  opacity:0;
  pointer-events:none;
  transition:opacity .2s ease-out;
}
.drawer.is-open{opacity:1;pointer-events:auto;}
.drawer-panel{
  position:absolute;
  top:0;
  right:0;
  height:100%;
  width:min(340px,86vw);
  background:#fff;
  padding:24px;
  overflow-y:auto;
  transform:translateX(100%);
  transition:transform .24s ease-out;
  display:flex;
  flex-direction:column;
  gap:24px;
}
.drawer.is-open .drawer-panel{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.drawer-close{
  width:38px;
  height:38px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--card-2);
  display:grid;
  place-items:center;
  color:var(--brand-deep);
  transition:background .2s ease-out;
}
.drawer-close:hover{background:var(--brand-soft);}
.drawer-close svg{width:16px;height:16px;}
.drawer-group h5{
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--ink-3);
  margin:0 0 10px;
  text-transform:uppercase;
}
.drawer-group ul{display:grid;gap:8px;}
.drawer-group a{
  display:block;
  padding:11px 14px;
  border-radius:12px;
  font-size:15px;
  color:var(--ink-2);
  border:1px solid var(--line);
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.drawer-group a:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:#CFE6E4;}
.drawer-group a.is-active{
  background:var(--brand-deep);
  border-color:var(--brand-deep);
  color:#fff;
}
.drawer-foot{margin-top:auto;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero-copy{padding:40px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .split.reverse .split-media{order:0;}
  .split + .split{margin-top:64px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .safety-card{padding:32px;}
  .check-grid{grid-template-columns:1fr;}
}

@media (max-width:900px){
  .brand-links{display:none;}
  .menu-toggle{display:flex;}
  .channel-inner{min-height:52px;gap:12px;}
}

@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding-top:64px;}
  .section--hero{padding-top:24px;}
  .brand-inner{min-height:64px;}
  .logo-text strong{font-size:15px;}
  .logo-text em{font-size:10px;}
  .hero-banner{min-height:0;}
  .hero-copy{padding:28px 24px 32px;}
  .hero-copy .hero-sub{font-size:15px;}
  .hero-actions{width:100%;}
  .hero-actions .btn{flex:1 1 100%;}
  .stat-row{
    grid-template-columns:1fr;
    gap:16px;
    margin-top:-24px;
    padding:0 12px;
  }
  .cta-band{
    flex-direction:column;
    align-items:flex-start;
    padding:24px 24px 28px;
  }
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn{flex:1 1 auto;}
  .faq-body{padding:0 20px 22px 24px;}
  .faq-item summary{padding:18px 20px;font-size:16px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{justify-content:flex-start;}
  .site-footer{margin-top:64px;padding-top:48px;}
  .split-media img{aspect-ratio:16/9;}
}

@media (max-width:520px){
  .hero-copy h1{font-size:26px;}
  .section-head h2,.split-body h2{font-size:22px;}
  .safety-card{padding:24px 20px;}
  .check-item{padding:16px;}
  .btn{height:46px;padding:0 22px;font-size:14px;}
  .btn-sm{height:38px;padding:0 16px;font-size:13px;}
  .stat-card{padding:16px 18px;}
  .stat-num{font-size:18px;}
  .footer-bottom{font-size:11px;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .stat-card:hover,.check-item:hover,.tag-pill:hover,.split-media:hover img{transform:none;}
}

/* roulang page: category3 */
:root{
  --primary:#0E7C7B;
  --primary-dark:#0A5B5A;
  --primary-light:#16A9A6;
  --primary-soft:#EAF4F3;
  --accent:#FF6B4A;
  --accent-warm:#FFA24B;
  --accent-soft:#FFF1EC;
  --dark:#07211F;
  --bg:#F6F8F7;
  --card:#FFFFFF;
  --card-2:#F0F6F5;
  --text:#0B1F1E;
  --text-2:#4B6664;
  --text-3:#8AA3A1;
  --border:#E2EAE8;
  --input-border:#D7E3E1;
  --success:#17A673;
  --warning:#E8A33D;
  --danger:#E04F3F;
  --radius-lg:28px;
  --radius:20px;
  --radius-sm:14px;
  --shadow-1:0 10px 30px rgba(9,60,58,.07);
  --shadow-2:0 18px 44px rgba(9,60,58,.14);
  --shadow-3:0 24px 64px rgba(9,60,58,.18);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:ui-monospace,"DIN Alternate",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--primary-dark);text-decoration:none;transition:color .2s ease-out,text-decoration-color .2s ease-out}
a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0}
button{font:inherit}
:focus-visible{outline:2px solid var(--primary-light);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:999px;border:0;
  font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,filter .2s ease-out,border-color .2s ease-out,color .2s ease-out;
  text-decoration:none;white-space:nowrap;
}
.btn:hover{text-decoration:none}
.btn-primary{background:linear-gradient(135deg,#0E7C7B,#0A5B5A);color:#fff;box-shadow:0 10px 24px rgba(10,91,90,.22)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--shadow-2);color:#fff}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-primary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(22,169,166,.35)}
.btn-secondary{background:#fff;color:var(--primary-dark);border:1.5px solid #C9DAD8}
.btn-secondary:hover{background:var(--card-2);border-color:var(--primary);color:var(--primary-dark)}
.btn-light{background:#fff;color:var(--primary-dark)}
.btn-light:hover{background:var(--primary-soft);color:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn:disabled,.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;filter:none}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--primary-dark);font-size:14.5px}
.text-link svg{width:16px;height:16px;transition:transform .2s ease-out}
.text-link:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.text-link:hover svg{transform:translateX(3px)}

/* ---------- 头部 ---------- */
.site-header{position:relative;z-index:60;background:#fff;border-bottom:1px solid var(--border)}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none}
.logo:hover{text-decoration:none}
.logo-mark{
  width:42px;height:42px;border-radius:14px;display:grid;place-items:center;flex:0 0 auto;
  color:#fff;background:linear-gradient(120deg,#0E7C7B,#16A9A6 62%,#FF6B4A);
  box-shadow:0 8px 20px rgba(10,91,90,.22);
}
.logo-mark svg{width:22px;height:22px}
.logo-text{display:flex;flex-direction:column;line-height:1.18}
.logo-text strong{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--text)}
.logo-text em{font-style:normal;font-size:11.5px;color:var(--text-3);letter-spacing:.03em}
.brand-links{display:flex;align-items:center;gap:22px}
.nav-link{font-size:15px;font-weight:500;color:var(--text-2);padding:6px 2px}
.nav-link:hover{color:var(--primary);text-decoration:none}
.hamburger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);
  background:#fff;cursor:pointer;padding:0;place-items:center;gap:4px;flex-direction:column;
}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--primary-dark);transition:transform .2s ease-out,opacity .2s ease-out}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.mobile-menu{display:none;background:#fff;border-top:1px solid var(--border);padding:20px 0 28px;box-shadow:var(--shadow-2)}
.mobile-menu.open{display:block}
.mobile-group{margin-bottom:22px}
.mobile-title{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--text-3);margin:0 0 10px;text-transform:uppercase}
.mobile-menu a{display:block;padding:11px 2px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--border)}
.mobile-menu a:hover{color:var(--primary);text-decoration:none}
.mobile-menu .btn{display:flex;width:100%;margin-top:18px;border-bottom:0;color:#fff}

/* ---------- 频道行 ---------- */
.channel-bar{
  position:sticky;top:0;z-index:50;
  background:var(--card-2);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.channel-inner{display:flex;align-items:center;gap:16px;height:52px}
.channel-home{
  flex:0 0 auto;font-size:14px;font-weight:600;color:var(--text-2);
  padding:6px 14px;border-radius:999px;border:1px solid transparent;
}
.channel-home:hover{background:var(--primary-soft);color:var(--primary-dark);text-decoration:none}
.cat-wrap{position:relative;flex:1 1 auto;min-width:0}
.cat-tabs{display:flex;align-items:center;gap:10px;overflow-x:auto;padding:4px 0;scrollbar-width:none}
.cat-tabs::-webkit-scrollbar{display:none}
.cat-tab{
  flex:0 0 auto;height:34px;display:inline-flex;align-items:center;
  padding:0 16px;border-radius:999px;border:1px solid var(--border);background:#fff;
  font-size:13.5px;font-weight:600;color:var(--text-2);transition:background .2s,color .2s,border-color .2s;
}
.cat-tab:hover{background:var(--primary-soft);color:var(--primary-dark);border-color:#C9DAD8;text-decoration:none}
.cat-tab.active{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff}
.cat-tab.active:hover{color:#fff;background:var(--primary-dark)}
.channel-cta{flex:0 0 auto;margin-left:auto}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#F2FAF8;
  background-color:var(--dark);
  background-image:
    linear-gradient(115deg,rgba(7,33,31,.96) 0%,rgba(10,91,90,.88) 52%,rgba(7,33,31,.95) 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  padding:36px 0 60px;
  border-bottom-left-radius:28px;border-bottom-right-radius:28px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:rgba(242,250,248,.6);margin-bottom:30px}
.breadcrumb a{color:rgba(242,250,248,.78)}
.breadcrumb a:hover{color:var(--primary-light);text-decoration:none}
.breadcrumb .sep{color:rgba(242,250,248,.35)}
.breadcrumb .current{color:var(--primary-light);font-weight:600}
.hero-center{max-width:860px;margin:0 auto;text-align:center}
.hero-title{
  font-size:clamp(30px,4vw,44px);font-weight:800;line-height:1.18;letter-spacing:-.01em;
  margin:0 0 16px;color:#fff;
}
.hero-sub{font-size:16.5px;line-height:1.75;color:rgba(242,250,248,.78);margin:0 auto;max-width:640px}
.hero-foot{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  margin-top:32px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
}
.hero-note{font-size:13.5px;color:rgba(242,250,248,.62);margin:0}
.hero-filter{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}
.filter-tab{
  height:34px;display:inline-flex;align-items:center;padding:0 16px;border-radius:999px;
  font-size:13px;font-weight:600;color:#F2FAF8;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  transition:background .2s,border-color .2s,color .2s;cursor:pointer;
}
.filter-tab:hover{background:rgba(22,169,166,.24);border-color:rgba(22,169,166,.55);color:#fff;text-decoration:none}
.filter-tab.active{background:#16A9A6;border-color:#16A9A6;color:#04211F}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.28;letter-spacing:-.01em;margin:0 0 10px}
.section-head p{font-size:15px;color:var(--text-2);margin:0}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- 支持清单 ---------- */
.list-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.list-row{
  display:grid;grid-template-columns:56px minmax(0,1fr) auto 24px;gap:20px;align-items:center;
  padding:24px 32px;border-top:1px solid var(--border);
  transition:background .2s ease-out;
}
.list-row:first-child{border-top:0}
.list-row:hover{background:var(--primary-soft)}
.list-row:hover .row-arrow{transform:translateX(4px);color:var(--primary)}
.row-index{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:12px;font-weight:600;color:var(--text-3);letter-spacing:.06em}
.row-main h3{font-size:20px;font-weight:600;line-height:1.4;margin:0 0 4px;color:var(--text)}
.row-main p{font-size:14px;line-height:1.7;color:var(--text-2);margin:0}
.row-badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap;
  background:var(--primary-soft);color:var(--primary-dark);
}
.row-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary)}
.row-badge.warn{background:var(--accent-soft);color:#C43D22}
.row-badge.warn::before{background:var(--accent)}
.row-badge.dark{background:rgba(7,33,31,.08);color:var(--text-2)}
.row-badge.dark::before{background:var(--text-3)}
.row-arrow{color:var(--text-3);transition:transform .2s ease-out,color .2s ease-out}
.row-arrow svg{width:18px;height:18px}

/* ---------- 双列信息卡 ---------- */
.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.info-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.info-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--primary-soft)}
.info-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease-out}
.info-card:hover .thumb img{transform:scale(1.03)}
.info-body{padding:28px 28px 30px}
.info-body h3{font-size:21px;font-weight:600;line-height:1.4;margin:0 0 10px}
.info-body p{font-size:14.5px;color:var(--text-2);line-height:1.75;margin:0 0 18px}
.check-list{list-style:none;display:flex;flex-direction:column;gap:12px;margin:0}
.check-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:var(--text-2)}
.check-list svg{flex:0 0 auto;width:18px;height:18px;margin-top:3px;color:var(--primary-light)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;background:var(--card-2);color:var(--text-2);border:1px solid var(--border);
}

/* ---------- 流程时间线 ---------- */
.flow-band{
  background:var(--dark);color:#F2FAF8;border-radius:var(--radius-lg);
  padding:48px;box-shadow:var(--shadow-2);position:relative;overflow:hidden;
}
.flow-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(120deg,#0E7C7B,#16A9A6,#FF6B4A);
}
.flow-head{max-width:640px;margin-bottom:36px}
.flow-head h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.3;margin:0 0 8px;color:#fff}
.flow-head p{font-size:14.5px;color:#A8C6C2;margin:0}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.flow-step{position:relative;padding-top:8px}
.flow-step:not(:last-child)::after{
  content:"";position:absolute;top:26px;left:56px;right:-12px;height:1px;
  border-top:1px dashed rgba(255,255,255,.22);
}
.flow-num{
  width:44px;height:44px;border-radius:999px;display:grid;place-items:center;
  font-family:var(--font-num);font-size:14px;font-weight:700;color:#04211F;
  background:linear-gradient(135deg,#16A9A6,#0E7C7B);margin-bottom:16px;
}
.flow-step h3{font-size:17px;font-weight:600;line-height:1.4;margin:0 0 6px;color:#fff}
.flow-step p{font-size:13.5px;line-height:1.7;color:#A8C6C2;margin:0}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{
  background:var(--card);border:1px solid var(--border);border-radius:18px;
  box-shadow:var(--shadow-1);overflow:hidden;transition:box-shadow .2s ease-out;
}
.faq-item + .faq-item{margin-top:14px}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 26px;font-size:16.5px;font-weight:600;color:var(--text);
  transition:background .2s ease-out,color .2s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:var(--primary-soft)}
.faq-item summary::after{
  content:"+";font-size:22px;line-height:1;font-weight:400;color:var(--primary);
  transition:transform .2s ease-out;flex:0 0 auto;
}
.faq-item[open]{box-shadow:inset 3px 0 0 var(--primary),var(--shadow-1)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item[open] summary{color:var(--primary-dark)}
.faq-body{padding:0 26px 22px;font-size:15px;line-height:1.9;color:var(--text-2);margin:0}

/* ---------- 转化带 ---------- */
.cta-band{
  background:var(--dark);border-radius:24px;overflow:hidden;
  box-shadow:var(--shadow-3);position:relative;
}
.cta-strip{height:4px;background:linear-gradient(120deg,#0E7C7B,#16A9A6,#FF6B4A)}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:26px 40px;min-height:96px;flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(20px,2.2vw,24px);font-weight:700;line-height:1.35;margin:0 0 6px;color:#fff}
.cta-inner p{font-size:14px;color:#A8C6C2;margin:0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#F2FAF8;padding:64px 0 0;margin-top:72px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand .logo-text strong{color:#fff}
.footer-brand .logo-text em{color:#A8C6C2}
.footer-desc{font-size:14px;line-height:1.75;color:#A8C6C2;margin:18px 0 20px;max-width:320px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);color:#F2FAF8;
  transition:background .2s,color .2s,transform .2s;
}
.footer-social a:hover{background:rgba(22,169,166,.9);color:#04211F;transform:translateY(-2px);text-decoration:none}
.footer-social svg{width:17px;height:17px}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin:0 0 16px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px;margin:0;padding:0}
.footer-col a{display:inline-block;font-size:14px;color:#A8C6C2;transition:color .2s,transform .2s}
.footer-col a:hover{color:var(--primary-light);transform:translateX(2px);text-decoration:none}
.footer-col p{font-size:14px;line-height:1.7;color:#A8C6C2;margin:0 0 10px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 24px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:rgba(242,250,248,.5);
}
.footer-bottom a{color:rgba(242,250,248,.62)}
.footer-bottom a:hover{color:var(--primary-light);text-decoration:none}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .brand-links .nav-link{display:none}
  .flow-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .flow-step:not(:last-child)::after{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .info-grid{grid-template-columns:1fr}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .brand-row{height:64px}
  .brand-links{display:none}
  .hamburger{display:flex}
  .channel-inner{height:auto;padding:8px 0;flex-wrap:wrap;gap:8px}
  .channel-cta{display:none}
  .cat-wrap{flex:1 1 100%}
  .cat-wrap::after{
    content:"";position:absolute;top:0;right:0;bottom:0;width:32px;pointer-events:none;
    background:linear-gradient(90deg,rgba(240,246,245,0),#F0F6F5);
  }
  .page-hero{padding:28px 0 44px;border-bottom-left-radius:20px;border-bottom-right-radius:20px}
  .hero-center{text-align:left}
  .hero-foot{flex-direction:column;align-items:flex-start}
  .hero-filter{justify-content:flex-start}
  .section{padding:56px 0}
  .list-row{grid-template-columns:minmax(0,1fr) auto 20px;gap:14px;padding:20px}
  .row-index{display:none}
  .row-main h3{font-size:18px}
  .flow-band{padding:32px 24px}
  .flow-grid{grid-template-columns:1fr;gap:26px}
  .cta-inner{padding:24px 22px;flex-direction:column;align-items:flex-start}
  .cta-inner .btn{width:100%}
  .faq-item summary{padding:18px 20px;font-size:15.5px}
  .faq-body{padding:0 20px 20px}
  .site-footer{padding-top:48px;margin-top:56px}
}
@media (max-width:520px){
  h1.hero-title{font-size:28px}
  .section-head h2{font-size:22px}
  .info-body{padding:22px 20px 24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .row-badge{display:none}
  .list-row{grid-template-columns:minmax(0,1fr) 20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}