/* roulang page: index */
:root{
  --paper:#F7F6F3;
  --surface:#FFFFFF;
  --ink:#14121A;
  --ink-soft:#4A4653;
  --line:#E7E4DC;
  --primary:#0E9F7E;
  --primary-bright:#25E0A6;
  --accent:#FF6A3D;
  --accent-soft:#FFE7DF;
  --night:#1B1725;
  --radius-card:16px;
  --radius-img:20px;
  --radius-sm:12px;
  --shadow-hover:0 8px 24px rgba(20,18,26,.07);
  --container:1200px;
  --topbar-h:40px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  background:var(--paper);
  color:var(--ink-soft);
  font-family:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{list-style:none}
time,.num{font-family:Inter,"DIN Alternate",system-ui,sans-serif;font-variant-numeric:tabular-nums}
::selection{background:var(--primary);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--paper)}
::-webkit-scrollbar-thumb{background:#D8D4CA;border-radius:999px;border:2px solid var(--paper)}
::-webkit-scrollbar-thumb:hover{background:var(--primary)}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}

.container{max-width:var(--container);margin:0 auto;padding:0 20px;width:100%}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- 顶部提示条 ---------- */
.topbar{
  position:sticky;top:0;z-index:70;
  height:var(--topbar-h);
  background:var(--night);
  color:#F7F6F3;
  display:flex;align-items:center;
  font-size:13px;
}
.topbar-inner{display:flex;align-items:center;gap:16px;width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:1024px){.topbar-inner{padding:0 32px}}
.topbar-badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--accent-soft);color:var(--accent);
  font-size:12px;font-weight:600;letter-spacing:.06em;
  padding:3px 10px;border-radius:6px;white-space:nowrap;
}
.topbar-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.8)}}
.topbar-text{color:rgba(247,246,243,.78);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-clock{margin-left:auto;display:flex;align-items:center;gap:8px;color:rgba(247,246,243,.65);white-space:nowrap}
.topbar-clock b{color:var(--primary-bright);font-weight:600}
.topbar-link{color:var(--primary-bright);font-weight:600;white-space:nowrap}
.topbar-link:hover{text-decoration:underline}
.topbar-progress{position:absolute;left:0;bottom:0;height:2px;width:0;background:linear-gradient(90deg,var(--primary),var(--primary-bright));animation:bar 9s linear infinite}
@keyframes bar{0%{width:0}100%{width:100%}}
@media (max-width:767px){
  :root{--topbar-h:34px}
  .topbar{font-size:12px}
  .topbar-text{display:none}
  .topbar-clock{font-size:12px}
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:var(--topbar-h);z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease;
}
.site-header.scrolled{box-shadow:0 4px 18px rgba(20,18,26,.07)}
.site-header.scrolled .nav-bar{min-height:62px}
.nav-bar{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:24px;
  min-height:76px;
  transition:min-height .3s ease;
}
.nav-side{display:flex;align-items:center;gap:26px}
.nav-side.right{justify-content:flex-end}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--ink-soft);
  white-space:nowrap;
  padding:6px 0;
  display:inline-flex;align-items:center;min-height:44px;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:6px;height:1px;width:0;
  background:var(--primary);transition:width .28s cubic-bezier(.22,1,.36,1);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--ink);font-weight:600}
.nav-link.active::after{width:100%;height:2px}
.brand{
  display:flex;flex-direction:column;align-items:center;gap:2px;
  padding:4px 8px;text-align:center;
}
.brand-mark{
  font-size:18px;font-weight:800;color:var(--ink);
  letter-spacing:-.01em;line-height:1.2;white-space:nowrap;
}
.brand-sub{
  font-size:10px;letter-spacing:.2em;color:#9A95A3;
  text-transform:uppercase;white-space:nowrap;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:12px 22px;border-radius:999px;
  min-height:44px;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:#0C8C6E;box-shadow:0 6px 18px rgba(14,159,126,.28)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{border:1px solid var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--ink);color:#fff}
.btn-ghost{color:var(--ink);border:1px solid transparent;background:rgba(20,18,26,.05)}
.btn-ghost:hover{background:rgba(20,18,26,.1)}
.btn .arrow{transition:transform .25s cubic-bezier(.22,1,.36,1);display:inline-block}
.btn:hover .arrow{transform:translateX(4px)}
.btn:disabled,.btn.is-disabled{opacity:.45;pointer-events:none}
.btn-sm{padding:9px 18px;font-size:14px;min-height:40px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:transform .3s ease,opacity .3s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:120;background:var(--paper);
  padding:76px 24px 32px;overflow-y:auto;
  transform:translateY(-100%);visibility:hidden;
  transition:transform .42s cubic-bezier(.22,1,.36,1),visibility .42s;
}
.drawer.open{transform:translateY(0);visibility:visible}
.drawer-close{position:absolute;top:18px;right:20px;width:44px;height:44px;border-radius:12px;background:rgba(20,18,26,.06);font-size:20px;display:flex;align-items:center;justify-content:center}
.drawer-brand{font-size:17px;font-weight:800;color:var(--ink);margin-bottom:4px}
.drawer-sub{font-size:11px;letter-spacing:.18em;color:#9A95A3;margin-bottom:26px}
.drawer-nav li{border-bottom:1px solid var(--line)}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 2px;font-size:18px;color:var(--ink);font-weight:500;
  opacity:0;transform:translateY(12px);
  transition:opacity .35s ease,transform .35s ease;
}
.drawer.open .drawer-link{opacity:1;transform:none}
.drawer.open .drawer-nav li:nth-child(1) .drawer-link{transition-delay:.06s}
.drawer.open .drawer-nav li:nth-child(2) .drawer-link{transition-delay:.12s}
.drawer.open .drawer-nav li:nth-child(3) .drawer-link{transition-delay:.18s}
.drawer.open .drawer-nav li:nth-child(4) .drawer-link{transition-delay:.24s}
.drawer.open .drawer-nav li:nth-child(5) .drawer-link{transition-delay:.30s}
.drawer-link i{font-style:normal;color:var(--primary);font-size:16px}
.drawer-cta{margin-top:26px;width:100%}
@media (max-width:1023px){
  .nav-bar{grid-template-columns:1fr auto;min-height:64px}
  .nav-side{display:none}
  .nav-toggle{display:flex}
  .brand{align-items:flex-start;text-align:left;padding-left:0}
  .brand-mark{font-size:16px}
  .brand-sub{font-size:9px;letter-spacing:.14em}
}
@media (min-width:1024px){.drawer{display:none}}

/* ---------- 通用区块 ---------- */
.section{padding:56px 0;border-top:1px solid var(--line)}
@media (min-width:1024px){.section{padding:88px 0}}
.section-plain{border-top:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.09em;
  color:var(--primary);background:rgba(14,159,126,.09);
  padding:6px 12px;border-radius:6px;
}
.eyebrow-dark{background:rgba(37,224,166,.14);color:var(--primary-bright)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:38px}
.sec-title{
  position:relative;padding-left:18px;
  font-size:clamp(24px,3.2vw,36px);font-weight:700;color:var(--ink);
  line-height:1.22;letter-spacing:-.015em;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;
  background:var(--primary);border-radius:2px;
}
.sec-sub{font-size:15px;color:var(--ink-soft);margin-top:8px;padding-left:18px;max-width:640px}
.link-more{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;min-height:44px}
.link-more:hover{color:#0C8C6E}
.link-more:hover span{transform:translateX(3px)}
.link-more span{transition:transform .25s ease;display:inline-block}

/* ---------- Hero ---------- */
.hero{padding:48px 0 56px;position:relative;overflow:hidden}
@media (min-width:1024px){.hero{padding:76px 0 88px}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.05fr .95fr;gap:56px}}
.hero-title{
  font-size:clamp(30px,4.4vw,52px);
  font-weight:800;line-height:1.13;letter-spacing:-.022em;
  color:var(--ink);margin:20px 0 18px;
}
.hero-lead{font-size:17px;line-height:1.85;color:var(--ink-soft);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:36px;
  margin-top:34px;padding-top:26px;border-top:1px solid var(--line);
}
.hero-stat b{display:block;font-size:26px;font-weight:800;color:var(--ink);line-height:1.2;letter-spacing:-.02em}
.hero-stat b em{font-style:normal;font-size:13px;font-weight:600;color:var(--ink-soft);margin-left:4px}
.hero-stat span{font-size:13px;color:#7C7885}
.hero-visual{position:relative;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);background:var(--surface);box-shadow:0 12px 32px rgba(20,18,26,.06)}
.hero-visual img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.hero-tag{
  position:absolute;left:16px;bottom:16px;
  background:rgba(255,255,255,.94);backdrop-filter:blur(6px);
  border-radius:12px;padding:10px 14px;font-size:13px;color:var(--ink);font-weight:600;
  display:flex;align-items:center;gap:8px;box-shadow:0 4px 14px rgba(20,18,26,.12);
}
.hero-tag i{width:8px;height:8px;border-radius:50%;background:var(--primary-bright);font-style:normal;display:block}

/* ---------- 路径列表 ---------- */
.path-list{margin-top:8px}
.path-item{
  display:grid;grid-template-columns:88px 1fr;gap:20px;
  padding:26px 0;border-bottom:1px solid var(--line);align-items:start;
}
.path-item:first-child{border-top:1px solid var(--line)}
.path-num{
  font-family:Inter,"DIN Alternate",system-ui,sans-serif;
  font-variant-numeric:tabular-nums;
  font-size:42px;font-weight:800;line-height:1;letter-spacing:-.03em;color:var(--primary);
}
.path-title{font-size:20px;font-weight:600;color:var(--ink);line-height:1.35;margin-bottom:6px}
.path-desc{font-size:15px;color:var(--ink-soft);max-width:760px}
.path-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tag{
  font-size:12px;font-weight:500;color:var(--ink-soft);
  background:rgba(20,18,26,.05);border-radius:6px;padding:4px 10px;
}
.tag-primary{background:rgba(14,159,126,.1);color:#0B7A60;font-weight:600}
@media (max-width:767px){
  .path-item{grid-template-columns:1fr;gap:10px;padding:22px 0}
  .path-num{font-size:30px}
}

/* ---------- 图墙 ---------- */
.wall{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;grid-auto-rows:150px}
@media (min-width:768px){.wall{grid-template-columns:repeat(4,1fr);gap:20px;grid-auto-rows:186px}}
.wall-item{
  position:relative;overflow:hidden;border-radius:var(--radius-img);
  border:1px solid var(--line);background:var(--surface);
}
.wall-item::before{
  content:"";position:absolute;inset:auto 0 0 0;height:58%;z-index:1;
  background:linear-gradient(to top,rgba(27,23,37,.76),rgba(27,23,37,0));
}
.wall-item::after{
  content:"";position:absolute;inset:0;z-index:2;opacity:0;
  background:linear-gradient(120deg,rgba(14,159,126,0),rgba(14,159,126,.18));
  transition:opacity .4s ease;
}
.wall-item:hover::after{opacity:1}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .55s cubic-bezier(.22,1,.36,1)}
.wall-item:hover img{transform:scale(1.03)}
.wall-item-lg{grid-column:span 2;grid-row:span 2}
.wall-cap{position:absolute;left:16px;right:16px;bottom:14px;z-index:3;color:#fff}
.wall-cap b{display:block;font-size:15px;font-weight:600;line-height:1.3}
.wall-cap span{display:block;font-size:12px;color:rgba(255,255,255,.75);margin-top:3px}
.wall-item-sm .wall-cap b{font-size:13.5px}
.wall-item-sm .wall-cap span{font-size:11.5px}

/* ---------- 深色自查区 ---------- */
.section-night{background:var(--night);color:#EDEBF1;border-color:transparent}
.section-night .sec-title{color:#fff}
.section-night .sec-title::before{background:var(--primary-bright)}
.cta-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media (min-width:1024px){.cta-grid{grid-template-columns:1fr 460px;gap:64px;align-items:start}}
.cta-copy h2{
  font-size:clamp(24px,3.2vw,36px);font-weight:700;color:#fff;
  line-height:1.25;letter-spacing:-.015em;margin:18px 0 16px;
}
.cta-copy p{font-size:16px;color:rgba(237,235,241,.76);max-width:560px}
.check-list{margin-top:26px;display:grid;gap:14px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:rgba(237,235,241,.86)}
.check-list li i{
  flex:0 0 auto;width:20px;height:20px;border-radius:50%;
  background:rgba(37,224,166,.16);color:var(--primary-bright);
  display:flex;align-items:center;justify-content:center;font-size:11px;font-style:normal;margin-top:4px;
}
.self-form{
  background:var(--surface);border-radius:var(--radius-card);
  padding:26px 24px 24px;box-shadow:0 16px 40px rgba(0,0,0,.22);
}
.self-form h3{font-size:18px;font-weight:700;color:var(--ink);margin-bottom:4px}
.self-form .form-note{font-size:13px;color:#7C7885;margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);background:#FCFBF9;
  border-radius:var(--radius-sm);padding:11px 14px;font-size:15px;
  color:var(--ink);transition:border-color .2s ease,box-shadow .2s ease;min-height:44px;
}
.field textarea{resize:vertical;min-height:88px;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#A8A4B0}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,159,126,.14);background:#fff;
}
.field input:focus-visible,.field select:focus-visible,.field textarea:focus-visible{outline:none}
.form-submit{width:100%;margin-top:6px}
.form-hint{font-size:12px;color:#9A95A3;margin-top:12px;text-align:center}

/* ---------- 内容卡片 ---------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);gap:24px}}
.post-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .28s cubic-bezier(.22,1,.36,1),border-color .28s ease,box-shadow .28s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow-hover)}
.post-link{display:flex;flex-direction:column;height:100%}
.post-media{margin:8px 8px 0;border-radius:14px;overflow:hidden;background:#EFEDE7}
.post-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s cubic-bezier(.22,1,.36,1)}
.post-card:hover .post-media img{transform:scale(1.03)}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.badge{
  align-self:flex-start;font-size:12px;font-weight:600;
  color:#0B7A60;background:rgba(14,159,126,.1);
  border-radius:6px;padding:3px 9px;margin-bottom:11px;
}
.post-title{
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-excerpt{
  font-size:14px;color:var(--ink-soft);line-height:1.75;margin-top:9px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:auto;padding-top:16px;font-size:13px;color:#8A8694;
}
.post-arrow{color:var(--primary);font-size:16px;line-height:1;transition:transform .25s ease}
.post-card:hover .post-arrow{transform:translateX(4px)}
.empty-state{
  grid-column:1/-1;min-height:220px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border:1px dashed var(--line);border-radius:var(--radius-card);background:var(--surface);padding:36px 20px;
}
.empty-state .empty-icon{
  width:46px;height:46px;border:2px solid var(--line);border-radius:12px;
  display:flex;align-items:center;justify-content:center;color:#B7B2BE;font-size:20px;
}
.empty-state p{font-size:15px;color:#8A8694}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 4px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
  transition:color .2s ease;min-height:44px;
}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);color:var(--ink-soft);
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:400;
  transition:transform .3s cubic-bezier(.22,1,.36,1),background-color .3s ease,border-color .3s ease,color .3s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--primary);border-color:var(--primary);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s cubic-bezier(.22,1,.36,1)}
.faq-item.open .faq-a{max-height:420px}
.faq-a-inner{padding:0 4px 22px;font-size:15px;line-height:1.85;color:var(--ink-soft);max-width:760px}
.faq-more{margin-top:24px;font-size:14px}
.faq-more a{color:var(--primary);font-weight:600;border-bottom:1px solid rgba(14,159,126,.35);padding-bottom:2px}
.faq-more a:hover{border-bottom-color:var(--primary)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--night);color:rgba(247,246,243,.72);padding:56px 0 0;margin-top:0}
@media (min-width:1024px){.site-footer{padding:72px 0 0}}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px}}
.footer-logo{display:block;font-size:18px;font-weight:800;color:#fff;letter-spacing:-.01em}
.footer-brand p{font-size:14px;line-height:1.8;margin-top:14px;max-width:340px;color:rgba(247,246,243,.62)}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col li{margin-bottom:11px;font-size:14px}
.footer-col a{color:rgba(247,246,243,.7);font-size:14px;display:inline-flex;min-height:32px;align-items:center}
.footer-col a:hover{color:var(--primary-bright)}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(247,246,243,.12);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13px;color:rgba(247,246,243,.5);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s cubic-bezier(.22,1,.36,1),transform .5s cubic-bezier(.22,1,.36,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --paper:#F7F6F3;
  --surface:#FFFFFF;
  --ink:#14121A;
  --ink-soft:#4A4653;
  --line:#E7E4DC;
  --primary:#0E9F7E;
  --primary-bright:#25E0A6;
  --accent:#FF6A3D;
  --accent-soft:#FFE7DF;
  --night:#1B1725;
  --radius-card:16px;
  --radius-img:20px;
  --radius-pill:999px;
  --shadow-hover:0 8px 24px rgba(20,18,26,.07);
  --font-cn:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","DIN Alternate",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
::selection{background:var(--primary-bright);color:var(--night);}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:var(--paper);}
::-webkit-scrollbar-thumb{background:#D6D2C8;border-radius:999px;border:2px solid var(--paper);}
::-webkit-scrollbar-thumb:hover{background:var(--primary);}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:-.01em;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .28s ease,background .28s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(20,18,26,.06);}
.nav-bar{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:20px;
  min-height:78px;
  transition:min-height .28s ease;
}
.site-header.is-scrolled .nav-bar{min-height:66px;}
.nav-side{display:flex;align-items:center;gap:28px;}
.nav-side.left{justify-content:flex-start;}
.nav-side.right{justify-content:flex-end;}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--ink-soft);
  padding:8px 0;
  min-height:44px;
  display:inline-flex;
  align-items:center;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:4px;height:1px;width:0;
  background:var(--primary);transition:width .28s cubic-bezier(.22,1,.36,1);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{width:100%;}
.nav-link.active{color:var(--ink);font-weight:600;}
.nav-link.active::after{width:100%;height:2px;}
.brand{
  display:flex;flex-direction:column;align-items:center;gap:3px;
  padding:6px 12px;text-align:center;
}
.brand-mark{
  font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--ink);
  white-space:nowrap;
}
.brand-sub{
  font-size:11px;letter-spacing:.22em;color:var(--ink-soft);text-transform:uppercase;
}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease,opacity .22s ease;
  white-space:nowrap;
}
.btn-sm{min-height:40px;padding:9px 20px;font-size:14px;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 2px 0 rgba(14,159,126,.16);}
.btn-primary:hover{background:#0B8A6C;box-shadow:var(--shadow-hover);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{border:1px solid var(--ink);color:var(--ink);background:transparent;}
.btn-outline:hover{background:var(--ink);color:#fff;}
.btn-ghost{color:var(--primary);padding-left:0;padding-right:0;background:none;}
.btn-ghost .arrow{transition:transform .22s ease;}
.btn-ghost:hover .arrow{transform:translateX(4px);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

/* ---------- Article hero ---------- */
.article-hero{
  position:relative;
  padding:34px 0 46px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(247,246,243,.95),rgba(247,246,243,.99)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:14px;color:var(--ink-soft);
}
.breadcrumb a{color:var(--ink-soft);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:#BDB8AC;}
.breadcrumb .current{color:var(--ink);font-weight:600;}
.article-head{margin-top:22px;max-width:860px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:6px;font-size:12px;font-weight:600;
  letter-spacing:.06em;background:rgba(14,159,126,.1);color:var(--primary);
}
.badge-accent{background:var(--accent-soft);color:var(--accent);}
.article-title{
  margin-top:16px;
  font-size:clamp(26px,4.4vw,44px);
  line-height:1.2;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--ink);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  margin-top:20px;font-size:14px;color:var(--ink-soft);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C9C4B8;}
.share-group{display:flex;align-items:center;gap:10px;margin-left:auto;}
.share-btn{
  min-height:38px;padding:8px 16px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:var(--surface);font-size:13px;
  color:var(--ink-soft);transition:border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.share-btn:hover{border-color:var(--primary);color:var(--primary);box-shadow:var(--shadow-hover);}

/* ---------- Article layout ---------- */
.article-wrap{padding:56px 0 24px;}
.article-layout{
  max-width:1092px;margin:0 auto;
  display:grid;grid-template-columns:minmax(0,760px) 220px;
  gap:56px;justify-content:center;align-items:start;
}
.article-body{
  font-size:17px;line-height:1.9;color:var(--ink-soft);word-break:break-word;
}
.article-body > * + *{margin-top:1.05em;}
.article-body p{margin:1.05em 0;}
.article-body h2{
  font-size:clamp(21px,2.5vw,27px);line-height:1.32;font-weight:700;color:var(--ink);
  margin:2.1em 0 .85em;padding-left:14px;border-left:3px solid var(--primary);
  scroll-margin-top:110px;
}
.article-body h3{
  font-size:20px;line-height:1.4;font-weight:600;color:var(--ink);
  margin:1.7em 0 .7em;scroll-margin-top:110px;
}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink);margin:1.4em 0 .5em;}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(14,159,126,.35);transition:color .2s ease,border-color .2s ease;}
.article-body a:hover{color:#0B8A6C;border-color:#0B8A6C;}
.article-body strong{color:var(--ink);font-weight:600;}
.article-body ul,.article-body ol{margin:1.05em 0;padding-left:2px;}
.article-body ul li{position:relative;padding-left:20px;margin:.5em 0;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--primary);
}
.article-body ol{list-style:decimal;padding-left:22px;}
.article-body ol li{margin:.5em 0;padding-left:4px;}
.article-body ol li::marker{color:var(--primary);font-weight:700;}
.article-body blockquote{
  margin:1.4em 0;padding:16px 22px;background:var(--paper);
  border-left:4px solid var(--primary);border-radius:0 12px 12px 0;color:var(--ink-soft);
}
.article-body blockquote p{margin:.4em 0;}
.article-body img{border-radius:var(--radius-img);margin:1.5em auto;width:100%;height:auto;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:13px;color:#8C8794;text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px;}
.article-body thead th{
  background:var(--paper);color:var(--ink);font-weight:600;text-align:left;
  padding:12px 14px;border-bottom:1px solid var(--line);
}
.article-body tbody td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--ink-soft);}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2.2em 0;}
.article-body code{
  font-family:var(--font-num);font-size:14px;background:var(--paper);
  padding:2px 7px;border-radius:6px;color:var(--ink);
}

/* ---------- TOC ---------- */
.toc{
  position:sticky;top:104px;
  border-left:1px solid var(--line);
  padding-left:20px;
}
.toc h4{font-size:12px;letter-spacing:.14em;color:var(--ink-soft);font-weight:600;margin-bottom:14px;}
.toc a{
  display:block;font-size:14px;line-height:1.6;color:var(--ink-soft);
  padding:6px 0 6px 10px;border-left:2px solid transparent;margin-left:-21px;
  transition:color .2s ease,border-color .2s ease;
}
.toc a:hover{color:var(--ink);}
.toc a.is-active{color:var(--primary);border-left-color:var(--primary);font-weight:600;}

/* ---------- Tags ---------- */
.tag-strip{
  max-width:760px;margin:44px auto 0;
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding-top:24px;border-top:1px solid var(--line);
}
.tag-strip .label{font-size:13px;color:var(--ink-soft);letter-spacing:.08em;}
.tag{
  display:inline-flex;align-items:center;min-height:32px;padding:6px 14px;
  border-radius:var(--radius-pill);border:1px solid var(--line);background:var(--surface);
  font-size:13px;color:var(--ink-soft);transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.tag:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}

/* ---------- Empty state ---------- */
.empty-state{
  max-width:760px;margin:0 auto;text-align:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:64px 28px;min-height:220px;
}
.empty-state .ring{
  width:64px;height:64px;margin:0 auto 20px;border-radius:50%;
  border:2px solid var(--line);display:flex;align-items:center;justify-content:center;
}
.empty-state .ring i{display:block;width:22px;height:22px;border-radius:6px;border:2px solid var(--primary);}
.empty-state h2{font-size:22px;color:var(--ink);font-weight:700;}
.empty-state p{margin-top:12px;color:var(--ink-soft);font-size:15px;}
.empty-state .btn{margin-top:26px;}

/* ---------- Related ---------- */
.section{padding:64px 0;}
.section-line{border-top:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px;}
.section-head h2{
  font-size:clamp(22px,3vw,32px);font-weight:700;letter-spacing:-.01em;color:var(--ink);
  display:flex;align-items:center;gap:12px;
}
.section-head h2::before{content:"";width:3px;height:26px;border-radius:2px;background:var(--primary);}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);
  padding:8px;transition:transform .28s cubic-bezier(.22,1,.36,1),border-color .28s ease,box-shadow .28s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow-hover);}
.post-thumb{
  position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:var(--radius-img);
}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.22,1,.36,1);}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-thumb::after{
  content:"";position:absolute;inset:0;opacity:0;transition:opacity .3s ease;
  background:linear-gradient(160deg,rgba(14,159,126,.18),transparent 65%);
}
.post-card:hover .post-thumb::after{opacity:1;}
.post-body{padding:16px 12px 12px;display:flex;flex-direction:column;flex:1;}
.post-body h3{
  font-size:17px;line-height:1.5;font-weight:600;color:var(--ink);margin-top:12px;
  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;gap:10px;
  font-size:13px;color:#8C8794;
}
.post-meta .go{margin-left:auto;color:var(--primary);transition:transform .22s ease;}
.post-card:hover .post-meta .go{transform:translateX(4px);}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--night);color:#F4F3F0;border-radius:24px;
  padding:48px 44px;display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:center;
}
.cta-band h2{font-size:clamp(22px,3vw,30px);font-weight:700;line-height:1.3;letter-spacing:-.01em;}
.cta-band p{margin-top:14px;color:#B9B5C4;font-size:15px;line-height:1.85;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end;}
.cta-band .btn-primary:hover{background:var(--accent);}

/* ---------- Footer ---------- */
.site-footer{background:var(--night);color:#E7E5EE;margin-top:24px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-top:64px;padding-bottom:44px;
}
.footer-logo{display:block;font-size:19px;font-weight:800;color:#fff;margin-bottom:14px;letter-spacing:-.01em;}
.footer-brand p{font-size:14px;line-height:1.85;color:#A9A4B6;max-width:340px;}
.footer-col h4{font-size:13px;letter-spacing:.12em;color:#fff;font-weight:600;margin-bottom:18px;}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul li a{font-size:14px;color:#A9A4B6;transition:color .2s ease;}
.footer-col ul li a:hover{color:var(--primary-bright);}
.footer-col ul li span{font-size:14px;color:#A9A4B6;line-height:1.7;display:block;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:22px;padding-bottom:30px;font-size:13px;color:#8E899C;
}

/* ---------- Reveal ---------- */
[data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .5s cubic-bezier(.22,1,.36,1),transform .5s cubic-bezier(.22,1,.36,1);}
[data-reveal].is-in{opacity:1;transform:none;}

/* ---------- Drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:70;background:var(--paper);
  padding:96px 24px 40px;transform:translateY(-100%);
  transition:transform .38s cubic-bezier(.22,1,.36,1);
  display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.drawer.is-open{transform:translateY(0);}
.drawer a.drawer-link{
  font-size:18px;font-weight:600;color:var(--ink);padding:14px 0;
  border-bottom:1px solid var(--line);
}
.drawer a.drawer-link.active{color:var(--primary);}
.drawer .btn{margin-top:26px;width:100%;}
.drawer-close{
  position:absolute;top:20px;right:20px;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--ink);
}

/* ---------- Toast ---------- */
.toast{
  position:fixed;left:50%;bottom:32px;transform:translate(-50%,12px);
  background:var(--ink);color:#fff;font-size:14px;padding:12px 22px;border-radius:var(--radius-pill);
  opacity:0;pointer-events:none;transition:opacity .25s ease,transform .25s ease;z-index:90;
}
.toast.is-show{opacity:1;transform:translate(-50%,0);}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;max-width:760px;}
  .toc{display:none;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .nav-side{display:none;}
  .nav-bar{grid-template-columns:44px 1fr 44px;}
  .nav-toggle{display:flex;}
  .brand{grid-column:2;}
  .article-hero{padding:22px 0 34px;}
  .share-group{margin-left:0;width:100%;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .article-wrap{padding:36px 0 12px;}
  .article-body{font-size:16px;line-height:1.85;}
  .section{padding:48px 0;}
  .grid-3{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:32px 22px;border-radius:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-top:48px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .btn{width:100%;}
  .btn-sm{width:auto;}
  .cta-actions .btn{width:100%;}
  .share-group{flex-wrap:wrap;}
}
@media (max-width:520px){
  .brand-mark{font-size:16px;}
  .brand-sub{font-size:10px;letter-spacing:.16em;}
  .article-meta{gap:8px 14px;font-size:13px;}
  .post-body h3{font-size:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
  [data-reveal]{transform:none;}
}
@media print{
  .site-header,.site-footer,.toc,.cta-band,.share-group,.tag-strip{display:none !important;}
  body{background:#fff;}
  .article-body{font-size:12pt;color:#000;}
}

/* roulang page: category1 */
:root{
  --paper:#F7F6F3;
  --surface:#FFFFFF;
  --ink:#14121A;
  --ink-soft:#4A4653;
  --line:#E7E4DC;
  --primary:#0E9F7E;
  --primary-bright:#25E0A6;
  --accent:#FF6A3D;
  --accent-soft:#FFE7DF;
  --night:#1B1725;
  --radius-card:16px;
  --radius-pic:20px;
  --radius-pill:999px;
  --shadow-hover:0 8px 24px rgba(20,18,26,.07);
  --shell:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{line-height:1.25;font-weight:700;}
.num{font-family:"Inter","DIN Alternate",system-ui,sans-serif;font-variant-numeric:tabular-nums;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;
}
.container{width:100%;max-width:var(--shell);margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ---------- 顶部状态条 ---------- */
.topbar{background:var(--night);color:#F7F6F3;font-size:13px;}
.topbar .container{
  display:flex;align-items:center;gap:14px;min-height:40px;flex-wrap:wrap;
  padding-top:6px;padding-bottom:6px;
}
.topbar-badge{
  background:var(--accent-soft);color:var(--accent);
  font-size:12px;font-weight:700;letter-spacing:.08em;
  padding:3px 10px;border-radius:6px;white-space:nowrap;
}
.topbar-text{color:rgba(247,246,243,.82);}
.topbar-time{font-weight:700;color:var(--primary-bright);}
.topbar-link{margin-left:auto;color:#F7F6F3;border-bottom:1px solid rgba(247,246,243,.4);}
.topbar-link:hover{color:var(--primary-bright);border-bottom-color:var(--primary-bright);}
@media (max-width:640px){
  .topbar-text{display:none;}
  .topbar .container{min-height:34px;}
}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,padding .25s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(20,18,26,.06);}
.nav-bar{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:16px;min-height:76px;
  transition:min-height .25s ease;
}
.site-header.is-scrolled .nav-bar{min-height:64px;}
.nav-side{display:flex;align-items:center;gap:28px;}
.nav-side.left{justify-self:start;}
.nav-side.right{justify-self:end;}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-soft);
  padding:6px 0;min-height:44px;display:inline-flex;align-items:center;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:8px;width:0;height:1px;
  background:var(--primary);transition:width .25s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{width:100%;}
.nav-link.active{color:var(--ink);font-weight:700;}
.nav-link.active::after{width:100%;height:2px;}
.brand{
  justify-self:center;text-align:center;display:flex;flex-direction:column;align-items:center;gap:2px;
}
.brand-mark{
  font-size:20px;font-weight:800;letter-spacing:-.01em;color:var(--ink);line-height:1.2;
}
.brand-sub{
  font-size:10px;letter-spacing:.34em;color:var(--ink-soft);text-transform:uppercase;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-pill);border:1px solid transparent;
  font-weight:600;font-size:15px;padding:12px 26px;min-height:44px;
  cursor:pointer;transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:#0C8C6E;box-shadow:var(--shadow-hover);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-outline:hover{background:var(--ink);color:#fff;}
.btn-ghost{background:transparent;color:var(--primary);border-color:transparent;padding-left:0;padding-right:0;}
.btn-ghost:hover{color:#0C8C6E;}
.btn-ghost .arrow{transition:transform .2s ease;}
.btn-ghost:hover .arrow{transform:translateX(4px);}
.btn-sm{padding:8px 18px;font-size:14px;min-height:40px;}
.btn:disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--surface);
  border-radius:12px;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  justify-self:end;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
@media (max-width:1023px){
  .nav-bar{grid-template-columns:auto 1fr auto;min-height:66px;}
  .nav-side{display:none;}
  .brand{justify-self:center;}
  .nav-toggle{display:flex;}
}
.drawer{
  position:fixed;inset:0;background:var(--paper);z-index:80;
  transform:translateY(-8px);opacity:0;pointer-events:none;
  transition:opacity .25s ease,transform .25s ease;
  padding:88px 24px 32px;overflow-y:auto;
}
.drawer.open{opacity:1;transform:translateY(0);pointer-events:auto;}
.drawer ul{display:flex;flex-direction:column;gap:4px;}
.drawer li a{
  display:block;font-size:18px;font-weight:600;padding:14px 0;border-bottom:1px solid var(--line);
}
.drawer li a.active{color:var(--primary);}
.drawer .btn{width:100%;margin-top:22px;}

/* ---------- Hero ---------- */
.hero{padding:34px 0 56px;border-bottom:1px solid var(--line);}
.breadcrumb{font-size:13px;color:var(--ink-soft);display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:26px;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--ink);font-weight:600;}
.hero-grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center;}
@media (min-width:1024px){.hero-grid{grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:56px;}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.12em;
  color:var(--primary);font-weight:700;background:rgba(14,159,126,.08);
  border-radius:6px;padding:5px 12px;margin-bottom:18px;
}
.hero h1{
  font-size:clamp(30px,5vw,54px);line-height:1.1;font-weight:800;letter-spacing:-.02em;
}
.hero-lead{margin-top:20px;font-size:17px;color:var(--ink-soft);max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:38px;border-top:1px solid var(--line);padding-top:22px;}
.hero-stats .stat-value{font-size:24px;font-weight:800;color:var(--ink);}
.hero-stats .stat-value em{font-style:normal;color:var(--primary);}
.hero-stats .stat-label{font-size:13px;color:var(--ink-soft);margin-top:2px;}
.hero-figure{border-radius:var(--radius-pic);overflow:hidden;border:1px solid var(--line);background:var(--surface);}
.hero-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;}
@media (max-width:640px){
  .hero{padding:24px 0 40px;}
  .hero-actions .btn{width:100%;}
  .hero-stats{grid-template-columns:1fr;gap:16px;}
}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0;border-bottom:1px solid var(--line);}
@media (min-width:1024px){.section{padding:88px 0;}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:38px;}
.section-title{display:flex;align-items:baseline;gap:14px;font-size:clamp(24px,3.2vw,36px);font-weight:800;letter-spacing:-.02em;}
.section-title .idx{font-family:"Inter","DIN Alternate",system-ui,sans-serif;font-size:clamp(28px,4vw,46px);font-weight:800;color:var(--primary);line-height:1;}
.section-title .bar{width:3px;height:26px;background:var(--primary);border-radius:3px;align-self:center;}
.section-desc{color:var(--ink-soft);font-size:16px;max-width:720px;margin-top:14px;}
.text-block{max-width:820px;}
.text-block p + p{margin-top:16px;}
.note-strip{
  display:flex;align-items:flex-start;gap:12px;background:var(--accent-soft);
  border-left:4px solid var(--accent);border-radius:0 12px 12px 0;
  padding:16px 20px;font-size:15px;color:#6B341F;margin-top:26px;
}

/* ---------- 两列特性列表 ---------- */
.feature-cols{display:grid;grid-template-columns:1fr;gap:0 48px;}
@media (min-width:768px){.feature-cols{grid-template-columns:1fr 1fr;}}
.feature-item{
  display:grid;grid-template-columns:auto 1fr;gap:14px;
  padding:22px 0;border-bottom:1px solid var(--line);
}
.feature-item .dot{
  width:10px;height:10px;border-radius:50%;background:var(--primary);margin-top:11px;
}
.feature-item h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.feature-item p{font-size:15px;color:var(--ink-soft);}
.feature-tag{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.06em;
  color:var(--primary);background:rgba(14,159,126,.1);border-radius:6px;padding:3px 8px;margin-bottom:8px;
}

/* ---------- 图墙 ---------- */
.gallery{display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:640px){.gallery{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){
  .gallery{grid-template-columns:repeat(4,1fr);grid-auto-rows:180px;}
  .gallery .tile-lg{grid-column:span 2;grid-row:span 2;}
}
.tile{
  position:relative;overflow:hidden;border-radius:var(--radius-pic);
  border:1px solid var(--line);background:var(--surface);min-height:180px;
}
.tile img{width:100%;height:100%;object-fit:cover;transition:transform .45s cubic-bezier(.22,1,.36,1);}
.tile::after{
  content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,159,126,0) 45%,rgba(14,159,126,.18) 100%);
  opacity:0;transition:opacity .35s ease;
}
.tile:hover img{transform:scale(1.03);}
.tile:hover::after{opacity:1;}
.tile figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 16px;
  background:linear-gradient(180deg,rgba(20,18,26,0) 0%,rgba(20,18,26,.78) 100%);
  color:#fff;font-size:14px;font-weight:600;
}

/* ---------- 检查表 / 数据条 ---------- */
.check-grid{display:grid;grid-template-columns:1fr;gap:18px;}
@media (min-width:768px){.check-grid{grid-template-columns:repeat(2,1fr);}}
.check-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.check-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow-hover);}
.check-card h3{font-size:18px;margin-bottom:8px;}
.check-card p{font-size:15px;color:var(--ink-soft);}
.check-card .badge{
  display:inline-block;font-size:12px;font-weight:700;color:var(--accent);background:var(--accent-soft);
  border-radius:6px;padding:3px 8px;margin-bottom:12px;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:none;border:0;text-align:left;padding:22px 0;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--ink);min-height:44px;
}
.faq-q .plus{
  flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform .3s ease;
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
}
.faq-q .plus::before{left:0;top:10px;width:22px;height:2px;}
.faq-q .plus::after{left:10px;top:0;width:2px;height:22px;}
.faq-item.open .faq-q .plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.faq-a p{font-size:15px;color:var(--ink-soft);padding:0 0 24px;max-width:760px;}

/* ---------- CTA ---------- */
.cta-band{background:var(--night);color:#F7F6F3;border-bottom:1px solid var(--line);}
.cta-band .section{padding:56px 0;}
@media (min-width:1024px){.cta-band .section{padding:84px 0;}}
.cta-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center;}
@media (min-width:1024px){.cta-grid{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:64px;}}
.cta-band h2{font-size:clamp(24px,3.4vw,38px);font-weight:800;letter-spacing:-.02em;}
.cta-band p{color:rgba(247,246,243,.78);margin-top:16px;font-size:16px;max-width:600px;}
.cta-list{display:flex;flex-direction:column;gap:12px;margin-top:24px;}
.cta-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(247,246,243,.86);}
.cta-list li::before{content:"";flex:0 0 auto;width:6px;height:6px;border-radius:50%;background:var(--primary-bright);margin-top:10px;}
.cta-panel{
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-card);padding:28px;
}
.cta-panel h3{font-size:19px;margin-bottom:10px;}
.cta-panel p{font-size:15px;margin-top:0;}
.cta-panel .btn{width:100%;margin-top:16px;}
.cta-panel .btn-outline{border-color:rgba(247,246,243,.6);color:#F7F6F3;}
.cta-panel .btn-outline:hover{background:#F7F6F3;color:var(--night);border-color:#F7F6F3;}

/* ---------- Footer ---------- */
.site-footer{background:var(--night);color:rgba(247,246,243,.82);font-size:15px;}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:36px;padding-top:56px;padding-bottom:40px;
}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;padding-top:72px;}}
.footer-logo{display:block;font-size:20px;font-weight:800;color:#F7F6F3;margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.9;max-width:340px;color:rgba(247,246,243,.66);}
.footer-col h4{font-size:15px;color:#F7F6F3;margin-bottom:16px;font-weight:700;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li{font-size:14px;color:rgba(247,246,243,.66);}
.footer-col a{font-size:14px;color:rgba(247,246,243,.66);transition:color .2s ease;}
.footer-col a:hover{color:var(--primary-bright);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  border-top:1px solid rgba(247,246,243,.14);padding-top:20px;padding-bottom:28px;
  font-size:13px;color:rgba(247,246,243,.5);
}

/* ---------- 动效 ---------- */
.fade-up{opacity:0;transform:translateY(16px);}
.fade-up.in{opacity:1;transform:translateY(0);transition:opacity .5s cubic-bezier(.22,1,.36,1),transform .5s cubic-bezier(.22,1,.36,1);}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .fade-up{opacity:1;transform:none;}
  .fade-up.in{transition:none;}
  .tile img,.check-card,.btn{transition:none;}
  .tile:hover img{transform:none;}
}
::selection{background:rgba(37,224,166,.28);}

/* roulang page: category2 */
:root{
  --paper:#F7F6F3; --surface:#FFFFFF; --ink:#14121A; --ink-soft:#4A4653;
  --line:#E7E4DC; --primary:#0E9F7E; --primary-deep:#0B7A60; --primary-bright:#25E0A6;
  --accent:#FF6A3D; --accent-soft:#FFE7DF; --night:#1B1725;
  --radius-card:16px; --radius-img:20px; --radius-field:12px;
  --shadow-hover:0 8px 24px rgba(20,18,26,.07);
  --font-sans:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","DIN Alternate",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--font-sans);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
::selection{background:rgba(37,224,166,.32)}
.container{width:100%;max-width:1200px !important;margin-inline:auto;padding-inline:20px}

/* ---------- 顶部状态条 ---------- */
.status-bar{background:var(--night);color:#F1EFEA;font-size:13.5px}
.status-inner{display:flex;align-items:center;gap:18px;min-height:40px;flex-wrap:wrap}
.status-badge{
  display:inline-flex;align-items:center;gap:6px;background:var(--accent-soft);color:#C7451F;
  font-size:12px;font-weight:600;letter-spacing:.06em;padding:3px 9px;border-radius:6px;
}
.status-text{color:rgba(241,239,234,.82)}
.status-time{font-family:var(--font-num);font-variant-numeric:tabular-nums;color:#fff;font-weight:600}
.status-link{margin-left:auto;color:var(--primary-bright);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.status-link:hover{text-decoration:underline}
.status-link .arrow{transition:transform .2s}
.status-link:hover .arrow{transform:translateX(4px)}

/* ---------- 头部与导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--surface);
  border-bottom:1px solid var(--line);transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:0 6px 18px rgba(20,18,26,.06)}
.nav-bar{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;min-height:78px}
.nav-side{display:flex;align-items:center;gap:28px}
.nav-side.left{justify-content:flex-start}
.nav-side.right{justify-content:flex-end}
.nav-link{
  position:relative;display:inline-block;padding:8px 0;font-size:15px;color:var(--ink-soft);
  transition:color .2s ease;min-height:44px;line-height:28px;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:2px;height:2px;width:0;background:var(--primary);
  transition:width .25s ease;border-radius:2px;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--primary);font-weight:600}
.nav-link.active::after{width:100%}
.brand{display:flex;flex-direction:column;align-items:center;text-align:center;line-height:1.2}
.brand-mark{font-size:19px;font-weight:800;letter-spacing:-.01em}
.brand-sub{font-size:11px;letter-spacing:.16em;color:var(--ink-soft);margin-top:5px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:var(--surface);cursor:pointer;align-items:center;justify-content:center;
  flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-drawer{
  position:fixed;inset:0;z-index:80;background:var(--paper);padding:22px 20px 32px;
  transform:translateY(-102%);visibility:hidden;transition:transform .32s cubic-bezier(.22,1,.36,1),visibility .32s;
  display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.mobile-drawer.open{transform:translateY(0);visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-brand{font-size:17px;font-weight:800}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);background:var(--surface);border-radius:12px;cursor:pointer;font-size:18px;line-height:1}
.drawer-link{
  display:block;padding:15px 4px;font-size:18px;color:var(--ink);border-bottom:1px solid var(--line);
}
.drawer-link.active{color:var(--primary);font-weight:600}
.drawer-cta{margin-top:18px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:13px 28px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn .arrow{transition:transform .2s ease}
.btn:hover .arrow{transform:translateX(4px)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:0 8px 20px rgba(14,159,126,.24)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{border-color:var(--ink);background:transparent;color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.btn-ghost{padding:10px 4px;min-height:auto;color:var(--primary);font-weight:600}
.btn-ghost:hover{color:var(--primary-deep)}
.btn-sm{min-height:40px;padding:9px 20px;font-size:14px}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:var(--primary-bright);color:var(--night)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:6px;
  font-size:12px;font-weight:600;letter-spacing:.05em;
  background:rgba(14,159,126,.10);color:var(--primary-deep);
}
.badge-accent{background:var(--accent-soft);color:#C7451F}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-soft);flex-wrap:wrap}
.crumb a{color:var(--ink-soft);transition:color .2s}
.crumb a:hover{color:var(--primary);text-decoration:underline}
.crumb .sep{color:var(--line)}
.crumb .current{color:var(--ink);font-weight:600}

/* ---------- 首屏 ---------- */
.hero{position:relative;border-bottom:1px solid var(--line);overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center right;opacity:.26;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(96deg,var(--paper) 34%,rgba(247,246,243,.72) 66%,rgba(247,246,243,.20) 100%);
}
.hero-inner{position:relative;z-index:2;padding:34px 0 66px}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:52px;align-items:center;margin-top:28px}
.hero h1{
  font-size:clamp(30px,5vw,58px);line-height:1.1;font-weight:800;letter-spacing:-.02em;margin-bottom:20px;
}
.hero-lead{font-size:17px;color:var(--ink-soft);max-width:560px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.hero-metrics{display:flex;gap:34px;flex-wrap:wrap;margin-top:38px;padding-top:26px;border-top:1px solid var(--line)}
.metric-item .num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:28px;font-weight:800;line-height:1.2}
.metric-item .num em{font-style:normal;font-size:14px;font-weight:600;color:var(--ink-soft);margin-left:3px}
.metric-item .label{font-size:13px;color:var(--ink-soft);margin-top:2px}
.hero-figure{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-img);
  padding:10px;box-shadow:var(--shadow-hover);
}
.hero-figure img{border-radius:14px;aspect-ratio:16/10;object-fit:cover;width:100%}
.hero-figure figcaption{font-size:13px;color:var(--ink-soft);padding:12px 6px 4px}

/* ---------- 板块 ---------- */
.section{padding:64px 0;border-bottom:1px solid var(--line)}
.section.tight{padding:52px 0}
.sec-head{display:flex;align-items:flex-start;gap:18px;margin-bottom:14px}
.sec-index{font-family:var(--font-num);font-size:38px;font-weight:800;line-height:1;color:var(--primary);letter-spacing:-.02em}
.sec-line{width:44px;height:3px;background:var(--primary);border-radius:3px;margin-top:20px;flex:none}
.sec-head h2{font-size:clamp(24px,3.4vw,38px);line-height:1.2;font-weight:700;letter-spacing:-.01em}
.sec-sub{font-size:15.5px;color:var(--ink-soft);max-width:720px;margin-top:14px}
.sec-head + .sec-sub{margin-left:0}

/* ---------- 数据条 ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;margin-top:34px;
}
.metrics .cell{padding:26px 24px;border-right:1px solid var(--line)}
.metrics .cell:last-child{border-right:0}
.metrics .num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:clamp(26px,3vw,36px);font-weight:800;line-height:1.15}
.metrics .num em{font-style:normal;font-size:14px;font-weight:600;color:var(--ink-soft);margin-left:4px}
.metrics .label{font-size:13.5px;color:var(--ink-soft);margin-top:6px}

/* ---------- 步骤流 ---------- */
.flow{position:relative;margin-top:44px}
.flow::before{
  content:"";position:absolute;left:23px;top:14px;bottom:18px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary) 0%,rgba(14,159,126,.16) 100%);
}
.step{position:relative;padding:0 0 40px 78px}
.step:last-child{padding-bottom:0}
.step-node{
  position:absolute;left:0;top:0;width:48px;height:48px;border-radius:50%;
  background:var(--surface);border:2px solid var(--primary);color:var(--primary);
  display:grid;place-items:center;font-family:var(--font-num);font-weight:800;font-size:15px;
  z-index:2;
}
.step-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 26px;transition:border-color .22s ease,box-shadow .22s ease;
}
.step-card:hover{border-color:var(--primary);box-shadow:var(--shadow-hover)}
.step-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.step-head h3{font-size:20px;font-weight:600;line-height:1.35}
.step-card p{font-size:15.5px;color:var(--ink-soft)}
.step-points{margin-top:16px;display:grid;gap:8px}
.step-points li{position:relative;padding-left:20px;font-size:14.5px;color:var(--ink-soft)}
.step-points li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--primary);
}

/* ---------- 图文与清单 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;margin-top:34px}
.split figure{margin:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-img);padding:10px}
.split figure img{border-radius:14px;aspect-ratio:16/10;object-fit:cover;width:100%}
.split figure figcaption{font-size:13px;color:var(--ink-soft);padding:12px 6px 4px}
.note-list{display:grid;gap:16px;margin-top:24px}
.note-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 22px;transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.note-item:hover{border-color:var(--primary);box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.note-item h4{font-size:16.5px;font-weight:600;margin-bottom:6px}
.note-item p{font-size:14.5px;color:var(--ink-soft)}
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 20px;margin-top:32px}
.check-item{
  display:flex;gap:12px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-field);padding:16px 18px;font-size:15px;color:var(--ink-soft);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.check-item:hover{border-color:var(--primary);box-shadow:var(--shadow-hover)}
.check-dot{
  flex:none;width:22px;height:22px;border-radius:50%;background:rgba(14,159,126,.12);color:var(--primary-deep);
  display:grid;place-items:center;font-size:12px;font-weight:800;margin-top:3px;
}
.tip-bar{
  display:flex;gap:14px;align-items:flex-start;background:var(--accent-soft);border-left:4px solid var(--accent);
  border-radius:12px;padding:18px 22px;font-size:14.5px;color:#7A3318;margin-top:32px;
}
.tip-bar strong{font-weight:700}

/* ---------- 表单 ---------- */
.form-panel{
  display:grid;grid-template-columns:.86fr 1.14fr;gap:44px;background:var(--surface);
  border:1px solid var(--line);border-radius:24px;padding:42px;margin-top:34px;
}
.form-panel h3{font-size:22px;font-weight:700;margin-bottom:12px}
.form-panel .hint{font-size:14.5px;color:var(--ink-soft)}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;padding:13px 16px;border:1px solid var(--line);border-radius:var(--radius-field);
  background:var(--paper);transition:border-color .2s ease,box-shadow .2s ease;min-height:46px;
}
.field textarea{min-height:104px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,159,126,.14);
}
.field.error input,.field.error select{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,106,61,.12)}
.field .err-msg{font-size:12px;color:var(--accent);margin-top:6px;display:none}
.field.error .err-msg{display:block}
.form-note{font-size:13px;color:var(--ink-soft);margin-top:12px}
.form-success{
  display:none;margin-top:16px;background:rgba(14,159,126,.10);color:var(--primary-deep);
  border-radius:12px;padding:14px 18px;font-size:14.5px;
}
.form-success.show{display:block}

/* ---------- FAQ ---------- */
.faq{max-width:760px;margin-top:34px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:none;border:0;display:flex;align-items:center;justify-content:space-between;
  gap:18px;padding:20px 0;font-size:17px;font-weight:600;text-align:left;cursor:pointer;transition:color .2s ease;
}
.faq-q:hover{color:var(--primary)}
.faq-sign{position:relative;width:22px;height:22px;flex:none;transition:transform .25s ease}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--primary);border-radius:2px}
.faq-sign::before{left:0;top:10px;width:22px;height:2px}
.faq-sign::after{left:10px;top:0;width:2px;height:22px}
.faq-item.open .faq-sign{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{font-size:15px;color:var(--ink-soft);padding-bottom:20px;max-width:700px}

/* ---------- 底部 CTA ---------- */
.cta-band{
  background:var(--night);color:#fff;border-radius:24px;padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:34px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,3vw,32px);font-weight:700;line-height:1.25}
.cta-band p{font-size:15px;color:rgba(255,255,255,.72);margin-top:12px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--night);color:#EDEAE4;padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:38px}
.footer-logo{font-size:18px;font-weight:800;color:#fff}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(237,234,228,.72);margin-top:12px;max-width:330px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.04em}
.footer-col li{font-size:14px;color:rgba(237,234,228,.7);line-height:1.8;margin-bottom:10px}
.footer-col a{color:rgba(237,234,228,.7);transition:color .2s ease}
.footer-col a:hover{color:var(--primary-bright)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);margin-top:46px;padding-top:20px;
  font-size:13px;color:rgba(237,234,228,.6);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s cubic-bezier(.22,1,.36,1),transform .5s cubic-bezier(.22,1,.36,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{transform:none;transition:opacity .3s linear}
  *{scroll-behavior:auto}
  .btn:hover{transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-side{gap:18px}
  .nav-link{font-size:14px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .split{grid-template-columns:1fr;gap:30px}
  .form-panel{grid-template-columns:1fr;gap:28px;padding:32px}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .metrics .cell:nth-child(2){border-right:0}
  .metrics .cell:nth-child(1),.metrics .cell:nth-child(2){border-bottom:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .container{padding-inline:32px}
}
@media (max-width:768px){
  .nav-side{display:none}
  .nav-toggle{display:flex}
  .nav-bar{grid-template-columns:auto 1fr auto;min-height:66px}
  .brand{align-items:flex-start;text-align:left}
  .brand-mark{font-size:16px}
  .brand-sub{font-size:10px;letter-spacing:.12em}
  .status-inner{min-height:34px;gap:12px}
  .status-text{display:none}
  .status-link{margin-left:0}
  .container{padding-inline:20px}
  .section{padding:48px 0}
  .sec-head{gap:12px}
  .sec-index{font-size:28px}
  .sec-line{margin-top:14px;width:32px}
  .flow::before{left:18px}
  .step{padding-left:56px}
  .step-node{width:38px;height:38px;font-size:13px}
  .check-grid{grid-template-columns:1fr}
  .cta-band{padding:32px 24px;border-radius:20px}
  .hero-actions .btn{width:100%}
  .hero-metrics{gap:22px}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  body{font-size:15.5px}
  .metrics{grid-template-columns:1fr}
  .metrics .cell{border-right:0;border-bottom:1px solid var(--line)}
  .metrics .cell:last-child{border-bottom:0}
  .step-card{padding:20px 18px}
  .form-panel{padding:24px 20px}
  .hero-inner{padding:24px 0 48px}
}

/* roulang page: category3 */
:root{
  --paper:#F7F6F3;
  --surface:#FFFFFF;
  --ink:#14121A;
  --ink-soft:#4A4653;
  --line:#E7E4DC;
  --primary:#0E9F7E;
  --primary-bright:#25E0A6;
  --accent:#FF6A3D;
  --accent-soft:#FFE7DF;
  --night:#1B1725;
  --container:1200px;
  --radius-card:16px;
  --radius-img:20px;
  --radius-btn:999px;
  --shadow-hover:0 8px 24px rgba(20,18,26,.07);
  --ease:cubic-bezier(.22,1,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
.num{font-family:"Inter","DIN Alternate",system-ui,sans-serif;font-variant-numeric:tabular-nums}
.container{width:100%;max-width:var(--container) !important;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(20,18,26,.06)}
.nav-bar{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:24px;
  min-height:78px;
}
.nav-side{display:flex;align-items:center;gap:28px}
.nav-side.left{justify-content:flex-start}
.nav-side.right{justify-content:flex-end}
.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  color:var(--ink-soft);
  transition:color .2s ease;
}
.nav-link::after{
  content:'';
  position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--primary);
  transition:width .25s var(--ease);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--ink);font-weight:600}
.nav-link.active::after{width:100%}
.brand{display:block;text-align:center}
.brand-mark{
  display:block;
  font-size:19px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--ink);
}
.brand-sub{
  display:block;
  margin-top:4px;
  font-size:10px;
  letter-spacing:.32em;
  color:var(--primary);
}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  background:var(--surface);
  cursor:pointer;
  transition:border-color .2s ease,background-color .2s ease;
}
.nav-toggle:hover{border-color:var(--primary)}
.nav-toggle span{display:block;width:18px;height:2px;margin:0 auto;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:60;
  display:flex;flex-direction:column;
  padding:20px;
  background:var(--paper);
  overflow-y:auto;
  transform:translateY(-100%);
  transition:transform .4s var(--ease);
}
.mobile-drawer.open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-head strong{font-size:16px;font-weight:800}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:var(--surface);cursor:pointer;font-size:18px;color:var(--ink);
  display:flex;align-items:center;justify-content:center;
}
.drawer-close:hover{border-color:var(--primary);color:var(--primary)}
.drawer-nav{margin-top:8px;display:flex;flex-direction:column}
.drawer-nav li{
  border-bottom:1px solid var(--line);
  opacity:0;transform:translateY(10px);
  transition:opacity .3s ease,transform .3s ease;
}
.mobile-drawer.open .drawer-nav li{opacity:1;transform:none}
.drawer-nav a{display:block;padding:18px 4px;font-size:18px;font-weight:600;color:var(--ink)}
.drawer-nav a.active{color:var(--primary)}
.drawer-cta{margin-top:26px}
.drawer-note{margin-top:18px;font-size:13px;color:var(--ink-soft)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;
  padding:12px 26px;
  border:1px solid transparent;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,filter .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn .arrow{transition:transform .22s var(--ease)}
.btn:hover .arrow{transform:translateX(4px)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{filter:brightness(1.06);box-shadow:var(--shadow-hover)}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--ink);color:#fff}
.btn-outline-light{border-color:rgba(255,255,255,.55);color:#fff;background:rgba(255,255,255,.05)}
.btn-outline-light:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-sm{padding:10px 20px;font-size:14px;min-height:42px}
.btn-lg{padding:15px 32px;font-size:16px}

/* ---------- 徽章 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 12px;
  border-radius:6px;
  font-size:12px;font-weight:600;letter-spacing:.08em;
  background:rgba(14,159,126,.1);
  color:var(--primary);
}
.eyebrow.on-dark{background:var(--accent-soft);color:var(--accent)}
.card-badge{
  display:inline-block;
  padding:4px 10px;
  border-radius:6px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  background:rgba(14,159,126,.1);
  color:var(--primary);
}
.card-badge.accent{background:var(--accent-soft);color:var(--accent)}

/* ---------- 首屏 ---------- */
.hero-band{
  position:relative;
  background-color:var(--night);
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;
  background-position:center;
  color:#fff;
}
.hero-band::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(20,18,26,.94) 0%,rgba(20,18,26,.78) 46%,rgba(20,18,26,.48) 100%);
}
.hero-band > .container{position:relative;z-index:1}
.hero-inner{max-width:840px;padding:40px 0 60px}
@media (min-width:1024px){.hero-inner{padding:60px 0 92px}}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:14px;color:rgba(255,255,255,.6)}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:var(--primary-bright)}
.breadcrumb .current{color:#fff;font-weight:600}
.hero-title{
  margin:18px 0 16px;
  font-size:clamp(30px,5vw,58px);
  font-weight:800;
  line-height:1.1;
  letter-spacing:-.02em;
  color:#fff;
}
.hero-sub{font-size:16px;color:rgba(255,255,255,.78);max-width:660px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-points{
  display:flex;flex-wrap:wrap;gap:14px 28px;
  margin-top:38px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.16);
  font-size:13px;color:rgba(255,255,255,.68);
}
.hero-points li{display:flex;align-items:center;gap:8px}
.hero-points li::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--primary-bright);flex:none}

/* ---------- 数据条 ---------- */
.stats-band{background:var(--surface);border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:28px 24px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0}
.stat-num{
  display:block;
  font-family:"Inter","DIN Alternate",system-ui,sans-serif;
  font-variant-numeric:tabular-nums;
  font-size:clamp(24px,3vw,34px);
  font-weight:800;
  line-height:1.15;
  letter-spacing:-.02em;
  color:var(--primary);
}
.stat-unit{font-size:14px;font-weight:600;margin-left:4px;color:var(--ink-soft)}
.stat-label{display:block;margin-top:6px;font-size:13px;color:var(--ink-soft)}
@media (max-width:1023px){
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat{padding:22px 18px}
  .stat:nth-child(odd){border-left:0}
  .stat:nth-child(n+3){border-top:1px solid var(--line)}
}

/* ---------- 区块 ---------- */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:88px 0}}
.section-bordered{border-top:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{
  font-size:clamp(24px,3.4vw,38px);
  font-weight:700;
  line-height:1.2;
  letter-spacing:-.01em;
  margin-bottom:14px;
}
.section-head p{color:var(--ink-soft);font-size:16px}
.h2-line{display:flex;align-items:center;gap:12px}
.h2-line::before{content:'';width:3px;height:26px;border-radius:2px;background:var(--primary);flex:none}
.lead-text{font-size:17px;color:var(--ink-soft);line-height:1.9}
.lead-text + .lead-text{margin-top:1.1em}

/* ---------- 卡片 ---------- */
.card{
  display:flex;flex-direction:column;
  padding:24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  transition:transform .25s var(--ease),box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--primary)}
.card-lg{padding:28px}
.card-media{margin-bottom:18px;overflow:hidden;border-radius:var(--radius-img)}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-img);transition:transform .4s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-title{margin:14px 0 10px;font-size:19px;font-weight:700;line-height:1.4}
.card-lg .card-title{font-size:23px;margin-top:16px}
.card-text{font-size:15px;color:var(--ink-soft);line-height:1.8}
.card-meta{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:18px;font-size:13px;color:var(--ink-soft)}

/* ---------- 侧栏要点面板 ---------- */
.aside-panel{
  padding:26px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
}
.aside-panel h3{font-size:17px;font-weight:700;margin-bottom:16px}
.aside-panel li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;
  border-top:1px solid var(--line);
  font-size:15px;color:var(--ink-soft);
}
.aside-panel li:first-of-type{border-top:0;padding-top:0}
.aside-panel li .dot{
  flex:none;width:22px;height:22px;margin-top:3px;
  border-radius:6px;
  background:rgba(14,159,126,.1);
  color:var(--primary);
  font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}

/* ---------- 流程列表 ---------- */
.step-list{border-top:1px solid var(--line)}
.step-item{
  display:grid;grid-template-columns:96px 1fr;gap:20px;
  padding:26px 0;
  border-bottom:1px solid var(--line);
  transition:background-color .25s ease;
}
.step-item:hover{background:rgba(14,159,126,.04)}
.step-num{
  font-family:"Inter","DIN Alternate",system-ui,sans-serif;
  font-variant-numeric:tabular-nums;
  font-size:24px;font-weight:800;letter-spacing:-.02em;color:var(--primary);
}
.step-body h3{font-size:20px;font-weight:600;margin-bottom:8px}
.step-body p{color:var(--ink-soft);font-size:15px;max-width:780px}
@media (max-width:640px){
  .step-item{grid-template-columns:1fr;gap:8px}
  .step-num{font-size:20px}
}

/* ---------- 自查清单 ---------- */
.check-list{
  display:grid;grid-template-columns:repeat(2,1fr);gap:0 36px;
  border-top:1px solid var(--line);
}
.check-item{display:flex;gap:14px;align-items:flex-start;padding:20px 0;border-bottom:1px solid var(--line)}
.check-box{
  flex:none;width:22px;height:22px;margin-top:3px;
  border-radius:6px;
  background:rgba(14,159,126,.1);
  color:var(--primary);
  font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.check-item strong{display:block;font-size:16px;font-weight:600;margin-bottom:4px}
.check-item span{font-size:14px;color:var(--ink-soft)}
@media (max-width:767px){.check-list{grid-template-columns:1fr}}

/* ---------- 更新记录 ---------- */
.update-list{border-top:1px solid var(--line)}
.update-item{
  display:grid;grid-template-columns:130px 1fr auto;gap:18px;align-items:center;
  padding:20px 0;border-bottom:1px solid var(--line);
}
.update-item time{
  font-family:"Inter","DIN Alternate",system-ui,sans-serif;
  font-variant-numeric:tabular-nums;
  font-size:14px;color:var(--ink-soft);
}
.update-item h3{font-size:16px;font-weight:600}
.update-item .go{font-size:13px;font-weight:600;color:var(--primary);transition:transform .2s var(--ease)}
.update-item:hover .go{transform:translateX(4px)}
.update-item:hover h3{color:var(--primary)}
@media (max-width:640px){
  .update-item{grid-template-columns:1fr;gap:6px}
  .update-item .go{display:none}
}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 0;
  background:none;border:0;
  font-size:17px;font-weight:600;color:var(--ink);
  text-align:left;cursor:pointer;
}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  position:relative;flex:none;width:22px;height:22px;
  border-radius:50%;
  background:rgba(14,159,126,.1);
  transition:transform .28s var(--ease),background-color .28s ease;
}
.faq-icon::before,.faq-icon::after{
  content:'';position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a-inner{max-width:760px;padding:0 0 22px;font-size:15px;line-height:1.8;color:var(--ink-soft)}

/* ---------- 结尾 CTA ---------- */
.cta-band{background:var(--night);color:#F7F6F3;padding:60px 0}
@media (min-width:1024px){.cta-band{padding:88px 0}}
.cta-band h2{font-size:clamp(24px,3.4vw,38px);font-weight:700;line-height:1.2;color:#fff;margin-bottom:14px}
.cta-band p{max-width:660px;color:rgba(247,246,243,.72)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--night);color:rgba(247,246,243,.78);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px}
.footer-logo{display:block;margin-bottom:14px;font-size:18px;font-weight:800;color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(247,246,243,.66);max-width:360px}
.footer-col h4{margin-bottom:16px;font-size:14px;font-weight:700;letter-spacing:.06em;color:#fff}
.footer-col ul{display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer-col a{color:rgba(247,246,243,.78)}
.footer-col a:hover{color:var(--primary-bright)}
.footer-col li{color:rgba(247,246,243,.66)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:48px;padding:22px 0;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(247,246,243,.55);
}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.footer-grid{grid-template-columns:1fr;gap:26px}}

/* ---------- 响应式导航 ---------- */
@media (max-width:1023px){
  .nav-side{display:none}
  .nav-toggle{display:flex}
  .nav-bar{grid-template-columns:1fr auto;min-height:66px;gap:16px}
  .brand{text-align:left}
  .brand-sub{letter-spacing:.2em}
}
@media (min-width:1024px){
  .mobile-drawer{display:none}
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{transform:none;transition:opacity .3s ease}
  .card:hover{transform:none}
  .card:hover .card-media img{transform:none}
  html{scroll-behavior:auto}
}
::selection{background:rgba(37,224,166,.32);color:var(--ink)}

/* roulang page: category4 */
:root{
  --paper:#F7F6F3;
  --surface:#FFFFFF;
  --ink:#14121A;
  --ink-soft:#4A4653;
  --line:#E7E4DC;
  --primary:#0E9F7E;
  --primary-bright:#25E0A6;
  --accent:#FF6A3D;
  --accent-soft:#FFE7DF;
  --night:#1B1725;
  --radius-card:16px;
  --radius-pic:20px;
  --radius-pill:999px;
  --shadow-hover:0 8px 24px rgba(20,18,26,.07);
  --font-cn:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","DIN Alternate",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}

/* ============ 顶部提示条 ============ */
.topbar{background:var(--night);color:#F7F6F3;min-height:40px;display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;gap:16px;min-height:40px;font-size:13px}
.topbar-badge{background:var(--accent-soft);color:var(--accent);font-size:12px;font-weight:700;letter-spacing:.08em;padding:3px 10px;border-radius:6px;white-space:nowrap}
.topbar-text{color:rgba(247,246,243,.78);flex:1;margin:0;line-height:1.4}
.topbar-link{color:var(--primary-bright);font-weight:600;white-space:nowrap;border-bottom:1px solid transparent}
.topbar-link:hover{border-bottom-color:var(--primary-bright)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.scrolled{box-shadow:0 6px 20px rgba(20,18,26,.06)}
.nav-bar{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:24px;min-height:76px;transition:min-height .25s ease;
}
.site-header.scrolled .nav-bar{min-height:66px}
.nav-side{display:flex;align-items:center;gap:28px}
.nav-side.left{justify-content:flex-start}
.nav-side.right{justify-content:flex-end}
.nav-link{
  position:relative;display:inline-flex;align-items:center;min-height:44px;
  font-size:15px;font-weight:500;color:var(--ink-soft);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:100%;bottom:9px;height:1px;
  background:var(--primary);transition:right .25s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{right:0}
.nav-link.active{color:var(--primary);font-weight:700}
.nav-link.active::after{right:0;height:2px;background:var(--primary)}
.brand{display:flex;flex-direction:column;align-items:center;gap:2px;text-align:center;padding:6px 10px}
.brand-mark{font-size:20px;font-weight:800;letter-spacing:-.01em;color:var(--ink);line-height:1.2}
.brand-sub{font-size:10px;letter-spacing:.28em;color:var(--ink-soft);text-transform:uppercase}
.brand:hover .brand-mark{color:var(--primary)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:var(--surface);flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer;
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 移动端抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:80;background:var(--paper);
  transform:translateY(-100%);transition:transform .38s cubic-bezier(.22,1,.36,1);
  display:flex;flex-direction:column;padding:24px 20px 32px;overflow-y:auto;
}
.mobile-drawer.open{transform:translateY(0)}
.drawer-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--surface);font-size:20px;color:var(--ink);cursor:pointer}
.drawer-list li{border-bottom:1px solid var(--line);opacity:0;transform:translateY(10px);transition:opacity .3s ease,transform .3s ease}
.mobile-drawer.open .drawer-list li{opacity:1;transform:none}
.drawer-list a{display:block;padding:16px 4px;font-size:18px;font-weight:600;color:var(--ink)}
.drawer-list a:hover{color:var(--primary)}
.drawer-cta{margin-top:24px}
.drawer-cta .btn{width:100%}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .22s ease,color .22s ease,box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:#0b8a6c;box-shadow:var(--shadow-hover);transform:translateY(-1px)}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.btn-ghost{color:var(--primary);background:transparent;padding:0 14px}
.btn-ghost:hover{background:rgba(14,159,126,.08)}
.btn .arrow{transition:transform .22s ease}
.btn:hover .arrow{transform:translateX(4px)}
.btn[disabled],.btn[aria-disabled="true"]{opacity:.45;pointer-events:none;transform:none;box-shadow:none}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:20px 0 0;font-size:14px;color:var(--ink-soft);
}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{opacity:.45}
.breadcrumb .current{color:var(--ink);font-weight:600}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;padding:48px 0 64px;
  background-image:url(/assets/images/backpic/back-3.webp);
  background-size:cover;background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(247,246,243,.97) 0%,rgba(247,246,243,.88) 52%,rgba(247,246,243,.62) 100%);
}
.page-hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;
  letter-spacing:.14em;color:var(--primary);margin-bottom:16px;
}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--primary);border-radius:2px}
h1.display{
  font-size:clamp(30px,5vw,52px);line-height:1.12;font-weight:800;letter-spacing:-.02em;
}
.hero-lead{margin-top:20px;font-size:17px;color:var(--ink-soft);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-media{
  border-radius:var(--radius-pic);overflow:hidden;border:1px solid var(--line);
  background:var(--surface);box-shadow:var(--shadow-hover);
}
.hero-media img{aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-pic)}
.hero-stats{display:flex;flex-wrap:wrap;gap:32px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.stat-num{font-size:26px;font-weight:800;color:var(--ink);line-height:1.2}
.stat-label{font-size:13px;color:var(--ink-soft);margin-top:4px}

/* ============ 板块通用 ============ */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:84px 0}}
.section + .section{border-top:1px solid var(--line)}
.sec-head{margin-bottom:36px;max-width:820px}
.sec-num{
  display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--primary);margin-bottom:10px;
}
h2.sec-title{font-size:clamp(24px,3.4vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
.sec-desc{margin-top:14px;color:var(--ink-soft);font-size:16px;max-width:760px}
.h3-line{
  position:relative;padding-left:14px;font-size:21px;font-weight:600;line-height:1.4;
}
.h3-line::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:2px;background:var(--primary)}

/* ============ 表格 ============ */
.table-wrap{
  overflow-x:auto;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);-webkit-overflow-scrolling:touch;
}
table.compare{width:100%;border-collapse:collapse;min-width:780px}
.compare thead th{
  background:var(--paper);text-align:left;font-size:13px;font-weight:700;
  letter-spacing:.06em;color:var(--ink-soft);padding:16px 20px;border-bottom:1px solid var(--line);
}
.compare td{
  padding:18px 20px;font-size:15px;color:var(--ink-soft);
  border-bottom:1px solid var(--line);vertical-align:top;line-height:1.75;
}
.compare tbody tr:last-child td{border-bottom:none}
.compare tbody tr{transition:background .2s ease}
.compare tbody tr:hover{background:rgba(14,159,126,.05)}
.compare td strong{display:block;color:var(--ink);font-weight:600;margin-bottom:2px}
.badge{
  display:inline-block;font-size:12px;font-weight:600;padding:3px 10px;
  border-radius:6px;background:rgba(14,159,126,.1);color:var(--primary);white-space:nowrap;
}
.badge-warn{background:var(--accent-soft);color:#C2461F}
.table-note{margin-top:16px;font-size:14px;color:var(--ink-soft)}

/* ============ 分流两列 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.panel:hover{border-color:var(--primary);box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.panel h3{font-size:19px;font-weight:700;margin-bottom:6px}
.panel .panel-sub{font-size:14px;color:var(--ink-soft);margin-bottom:18px}
.check-list li{
  display:flex;gap:12px;padding:12px 0;border-top:1px solid var(--line);
  font-size:15px;color:var(--ink-soft);line-height:1.7;
}
.check-list li:first-child{border-top:none}
.dot{flex:0 0 auto;width:8px;height:8px;border-radius:50%;background:var(--primary);margin-top:9px}
.dot.warn{background:var(--accent)}

/* ============ FAQ ============ */
.faq{max-width:820px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:44px;padding:20px 0;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;color:var(--primary);
  transition:transform .28s ease,border-color .28s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);border-color:var(--primary)}
.faq-body{max-width:760px;padding:0 0 22px;font-size:15px;color:var(--ink-soft);line-height:1.85}
.faq-body a{color:var(--primary);border-bottom:1px solid rgba(14,159,126,.35)}
.faq-body a:hover{border-bottom-color:var(--primary)}

/* ============ CTA / 表单 ============ */
.cta-band{
  background:var(--night);color:#F7F6F3;border-radius:24px;
  padding:48px 40px;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;
}
.cta-band h2{font-size:clamp(24px,3vw,32px);line-height:1.3;font-weight:700;color:#fff}
.cta-band p{margin-top:14px;font-size:15px;color:rgba(247,246,243,.75)}
.cta-points{margin-top:24px;display:flex;flex-wrap:wrap;gap:10px}
.cta-points span{
  font-size:12px;font-weight:600;padding:4px 12px;border-radius:6px;
  background:rgba(37,224,166,.14);color:var(--primary-bright);
}
.form-grid{display:grid;gap:16px}
.field label{display:block;font-size:14px;margin-bottom:8px;color:rgba(247,246,243,.78)}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:12px;font-size:15px;
  border:1px solid rgba(247,246,243,.22);background:rgba(255,255,255,.06);color:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7}
.field select option{color:#14121A}
.field input::placeholder,.field textarea::placeholder{color:rgba(247,246,243,.42)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary-bright);box-shadow:0 0 0 3px rgba(37,224,166,.18);
}
.form-tip{margin-top:14px;font-size:13px;color:var(--primary-bright);min-height:20px}

/* ============ 静态卡片 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:8px 8px 20px;display:flex;flex-direction:column;
  transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.card:hover{border-color:var(--primary);box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.card img{border-radius:var(--radius-pic);aspect-ratio:16/9;object-fit:cover}
.card-body{padding:18px 14px 0;display:flex;flex-direction:column;flex:1;gap:10px}
.card-body h3{font-size:18px;font-weight:700;line-height:1.45}
.card-body p{font-size:14px;color:var(--ink-soft);line-height:1.75}
.card-meta{margin-top:auto;padding-top:14px;font-size:13px;color:var(--ink-soft);display:flex;justify-content:space-between;align-items:center}
.card-meta .more{color:var(--primary);font-weight:600}
.card:hover .more .arrow{transform:translateX(4px)}
.more .arrow{display:inline-block;transition:transform .22s ease}

/* ============ 进场动画 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s cubic-bezier(.22,1,.36,1),transform .5s cubic-bezier(.22,1,.36,1)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{transform:none;transition:opacity .3s ease}
  .btn:hover,.panel:hover,.card:hover{transform:none}
  html{scroll-behavior:auto}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--night);color:rgba(247,246,243,.72);margin-top:72px;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-logo{display:block;font-size:20px;font-weight:800;color:#fff;margin-bottom:14px;letter-spacing:-.01em}
.footer-brand p{font-size:14px;line-height:1.9}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;letter-spacing:.06em;margin-bottom:16px}
.footer-col li{font-size:14px;margin-bottom:10px;line-height:1.7}
.footer-col a:hover{color:var(--primary-bright)}
.footer-bottom{
  border-top:1px solid rgba(247,246,243,.14);padding:20px 0 30px;
  display:flex;justify-content:space-between;gap:14px;font-size:13px;flex-wrap:wrap;
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media{order:-1}
  .cta-band{grid-template-columns:1fr;gap:32px;padding:40px 28px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .nav-side{display:none}
  .nav-bar{grid-template-columns:1fr;min-height:72px;position:relative}
  .brand{align-items:flex-start;text-align:left;padding-left:0}
  .nav-toggle{display:flex}
  .split{grid-template-columns:1fr}
  .page-hero{padding:32px 0 44px}
  .hero-actions .btn{width:100%}
  .hero-stats{gap:24px}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .section{padding:44px 0}
  .topbar-text{font-size:12px;line-height:1.4}
}
@media (max-width:520px){
  .brand-mark{font-size:17px}
  .brand-sub{letter-spacing:.18em;font-size:9px}
  .topbar-inner{gap:10px}
  .topbar-badge{font-size:11px;padding:2px 8px}
  .panel{padding:22px}
  .cta-band{padding:32px 20px;border-radius:18px}
}