/* roulang page: index */
:root{
  --c-ink:#14181A;
  --c-ink-2:#525A5C;
  --c-ink-3:#8A9192;
  --c-brand:#14504B;
  --c-brand-deep:#0C332F;
  --c-brand-soft:#E6EEEB;
  --c-accent:#E25E2C;
  --c-accent-soft:#FBE9E0;
  --c-bg:#F7F6F1;
  --c-surface:#FFFFFF;
  --c-line:#E3E1DA;
  --c-line-strong:#CFCCC2;
  --f-sans:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --f-num:"Inter",ui-monospace,SFMono-Regular,monospace;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,24,26,.04),0 10px 28px -16px rgba(20,24,26,.12);
  --sh-2:0 16px 36px -18px rgba(12,51,47,.22);
  --sp:clamp(56px,7vw,112px);
  --ease:200ms cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--f-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  letter-spacing:0;
}
img{max-width:100%;display:block}
a{color:var(--c-brand);text-decoration:none}
a:hover{color:var(--c-brand-deep)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.15}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
.shell{max-width:1240px;margin:0 auto;padding:0 clamp(16px,4vw,32px)}
.sec{padding:var(--sp) 0}
.sec-tight{padding:calc(var(--sp) * .6) 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.sec-head h2{font-size:clamp(1.5rem,2.4vw,2.1rem)}
.sec-kicker{
  display:inline-block;font-size:12.5px;font-family:var(--f-num);letter-spacing:.14em;
  text-transform:uppercase;color:var(--c-brand);background:var(--c-brand-soft);
  border-radius:var(--r-pill);padding:5px 14px;margin-bottom:14px;
}
.sec-lead{color:var(--c-ink-2);font-size:15px;max-width:620px;line-height:1.8}
.more-link{font-size:14px;color:var(--c-brand);border-bottom:1px solid transparent;transition:border-color var(--ease)}
.more-link:hover{border-color:var(--c-brand)}

/* 顶部倒计时条 */
.topbar{
  background:var(--c-brand-deep);color:var(--c-bg);min-height:42px;
  display:flex;align-items:center;font-size:13px;
}
.topbar .shell{display:flex;align-items:center;gap:16px;width:100%;flex-wrap:nowrap;overflow:hidden}
.topbar .tag{
  background:rgba(247,246,241,.14);border-radius:var(--r-pill);
  padding:3px 12px;font-size:12px;white-space:nowrap;flex:0 0 auto;
}
.timer{font-family:var(--f-num);font-variant-numeric:tabular-nums;font-size:15px;font-weight:600;letter-spacing:.04em;white-space:nowrap}
.timer-fallback{font-family:var(--f-num);font-size:13px;color:rgba(247,246,241,.66);white-space:nowrap}
.topbar .tb-link{margin-left:auto;color:var(--c-bg);white-space:nowrap;flex:0 0 auto;border-bottom:1px solid rgba(247,246,241,.4);transition:border-color var(--ease)}
.topbar .tb-link:hover{border-color:var(--c-bg)}
.topbar .tb-link i{transition:transform var(--ease)}
.topbar .tb-link:hover i{transform:translateX(3px)}

/* 导航 */
.site-head{
  position:sticky;top:0;z-index:1030;background:var(--c-surface);
  border-bottom:1px solid var(--c-line);transition:box-shadow var(--ease),border-color var(--ease);
}
.site-head.is-scrolled{box-shadow:0 1px 2px rgba(20,24,26,.04),0 10px 28px -16px rgba(20,24,26,.14)}
.nav-inner{display:flex;align-items:center;gap:24px;padding:14px 0}
.logo{
  display:inline-flex;align-items:center;gap:8px;font-size:19px;font-weight:800;
  color:var(--c-brand);letter-spacing:-.01em;flex:0 0 auto;
}
.logo::after{content:"";width:4px;height:4px;border-radius:50%;background:var(--c-accent);display:block}
.chipbar{
  display:flex;align-items:center;gap:8px;flex:1 1 auto;min-width:0;
  overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;
  -ms-overflow-style:none;padding:2px;
}
.chipbar::-webkit-scrollbar{display:none}
.nav-chip{
  flex:0 0 auto;scroll-snap-align:center;height:36px;display:inline-flex;align-items:center;
  padding:0 16px;border-radius:var(--r-pill);border:1px solid var(--c-line);
  background:transparent;color:var(--c-ink-2);font-size:14px;white-space:nowrap;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.nav-chip:hover{background:var(--c-brand-soft);color:var(--c-brand);border-color:var(--c-brand-soft)}
.nav-chip.active{background:var(--c-brand);border-color:var(--c-brand);color:#fff;font-weight:600}
.nav-cta{
  flex:0 0 auto;height:40px;display:inline-flex;align-items:center;padding:0 20px;
  border-radius:var(--r-pill);background:var(--c-brand);color:#fff;font-size:14px;font-weight:600;
  border:1px solid var(--c-brand);transition:background var(--ease),transform var(--ease),box-shadow var(--ease);
}
.nav-cta:hover{background:var(--c-brand-deep);border-color:var(--c-brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1)}
@media (max-width:991.98px){
  .nav-inner{flex-wrap:wrap;gap:12px;padding:12px 0}
  .chipbar{order:3;flex:1 0 100%;mask-image:linear-gradient(90deg,transparent,#000 14px,#000 calc(100% - 14px),transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 14px,#000 calc(100% - 14px),transparent)}
}

/* Hero */
.hero{position:relative;padding:clamp(40px,6vw,84px) 0 var(--sp);background:var(--c-bg);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:6fr 6fr;gap:clamp(28px,4vw,56px);align-items:center}
.hero h1{font-size:clamp(2.3rem,5vw,4rem);font-weight:800;line-height:1.08;letter-spacing:-.02em;margin-bottom:22px}
.hero h1 em{font-style:normal;color:var(--c-brand);position:relative;white-space:nowrap}
.hero h1 em::after{content:"";position:absolute;left:0;right:0;bottom:.06em;height:.14em;background:var(--c-accent-soft);z-index:-1}
.hero-sub{font-size:clamp(17px,1.4vw,19px);color:var(--c-ink-2);max-width:560px;line-height:1.8;margin-bottom:30px}
.btn-row{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:38px}
.btn-main{
  height:50px;display:inline-flex;align-items:center;gap:8px;padding:0 28px;border-radius:var(--r-pill);
  background:var(--c-brand);color:#fff;font-weight:600;font-size:15px;border:1px solid var(--c-brand);
  transition:background var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-main:hover{background:var(--c-brand-deep);border-color:var(--c-brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-ghost{
  height:50px;display:inline-flex;align-items:center;gap:8px;padding:0 26px;border-radius:var(--r-pill);
  background:transparent;color:var(--c-brand);font-weight:600;font-size:15px;border:1px solid var(--c-line-strong);
  transition:background var(--ease),border-color var(--ease),transform var(--ease);
}
.btn-ghost:hover{background:var(--c-brand-soft);border-color:var(--c-brand);color:var(--c-brand);transform:translateY(-1px)}
.hero-stats{display:flex;flex-wrap:wrap;gap:clamp(18px,3vw,40px);padding-top:22px;border-top:1px solid var(--c-line)}
.hero-stats .st b{display:block;font-family:var(--f-num);font-variant-numeric:tabular-nums;font-size:26px;font-weight:700;color:var(--c-brand);line-height:1.2}
.hero-stats .st span{font-size:12.5px;color:var(--c-ink-3)}
.hero-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.hero-visual img{width:100%;height:100%;min-height:340px;object-fit:cover;transition:transform 600ms cubic-bezier(.2,.7,.3,1)}
.hero-visual:hover img{transform:scale(1.04)}
.hero-badge{
  position:absolute;left:18px;bottom:18px;background:rgba(255,255,255,.94);backdrop-filter:blur(6px);
  border-radius:var(--r-md);padding:14px 18px;box-shadow:var(--sh-1);max-width:calc(100% - 36px);
}
.hero-badge b{display:block;font-size:14px;color:var(--c-ink)}
.hero-badge span{font-size:12.5px;color:var(--c-ink-3)}
@media (max-width:991.98px){
  .hero-grid{grid-template-columns:1fr}
  .hero-visual{order:-1}
  .hero-visual img{min-height:220px}
}

/* 活动卖点 编号错位 */
.points{border-top:1px solid var(--c-line)}
.point-row{
  display:grid;grid-template-columns:110px 1fr;gap:clamp(16px,3vw,40px);
  padding:30px 0;border-bottom:1px solid var(--c-line);align-items:start;
  transition:background var(--ease);
}
.point-row:hover{background:rgba(230,238,235,.4)}
.point-row.offset{padding-left:clamp(0px,4vw,40px)}
.point-num{
  font-family:var(--f-num);font-variant-numeric:tabular-nums;font-size:clamp(30px,3.4vw,42px);
  font-weight:700;line-height:1;color:transparent;-webkit-text-stroke:1.5px var(--c-accent);
  letter-spacing:-.03em;
}
.point-row h3{font-size:1.12rem;font-weight:700;margin-bottom:8px}
.point-row p{color:var(--c-ink-2);font-size:14.5px;line-height:1.8;max-width:680px}
@media (max-width:575.98px){
  .point-row{grid-template-columns:1fr;gap:10px}
  .point-row.offset{padding-left:0}
}

/* 图墙 */
.wall{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}
.wall-item{
  position:relative;overflow:hidden;border-radius:var(--r-md);background:var(--c-brand-soft);
  border:1px solid var(--c-line);box-shadow:var(--sh-1);transition:box-shadow var(--ease),border-color var(--ease),transform var(--ease);
}
.wall-item:hover{box-shadow:var(--sh-2);border-color:var(--c-brand);transform:translateY(-3px)}
.wall-item img{width:100%;height:100%;min-height:210px;object-fit:cover;transition:transform 600ms cubic-bezier(.2,.7,.3,1)}
.wall-item:hover img{transform:scale(1.04)}
.wall-item .veil{
  position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,51,47,0) 38%,rgba(12,51,47,.82) 100%);
  display:flex;flex-direction:column;justify-content:flex-end;padding:20px;
  color:#fff;opacity:.94;transition:opacity var(--ease);
}
.wall-item .veil h3{font-size:1.05rem;font-weight:700;margin-bottom:4px;transition:transform var(--ease)}
.wall-item:hover .veil h3{transform:translateY(-8px)}
.wall-item .veil p{font-size:13px;color:rgba(255,255,255,.82);line-height:1.6;transition:transform var(--ease)}
.wall-item:hover .veil p{transform:translateY(-8px)}
.w-7{grid-column:span 7}
.w-5{grid-column:span 5}
.w-6{grid-column:span 6}
@media (max-width:767.98px){
  .wall{grid-template-columns:1fr;gap:14px}
  .w-7,.w-5,.w-6{grid-column:span 1}
  .wall-item img{min-height:200px}
}

/* 深色 CTA + 表单 */
.cta-band{background:var(--c-brand-deep);color:var(--c-bg);border-radius:var(--r-lg);padding:clamp(32px,4.4vw,64px);position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(226,94,44,.22),transparent 68%);
}
.cta-grid{display:grid;grid-template-columns:5fr 7fr;gap:clamp(28px,4vw,64px);position:relative;z-index:1}
.cta-band h2{font-size:clamp(1.5rem,2.4vw,2.1rem);color:#fff;margin-bottom:16px}
.cta-band .cta-text{color:rgba(247,246,241,.76);font-size:15px;line-height:1.85;margin-bottom:26px}
.trust{display:grid;gap:12px}
.trust li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(247,246,241,.82)}
.trust i{color:var(--c-accent);margin-top:5px;font-size:13px}
.form-panel{background:rgba(255,255,255,.06);border:1px solid rgba(247,246,241,.16);border-radius:var(--r-md);padding:clamp(20px,2.6vw,30px)}
.form-panel .lab{display:block;font-size:13.5px;color:rgba(247,246,241,.84);margin-bottom:7px}
.form-panel .ctrl{
  width:100%;height:48px;border-radius:var(--r-sm);border:1px solid rgba(247,246,241,.24);
  background:rgba(255,255,255,.95);color:var(--c-ink);padding:0 14px;font-size:14.5px;
  transition:box-shadow var(--ease),border-color var(--ease);margin-bottom:16px;
}
.form-panel select.ctrl{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--c-ink-2) 50%),linear-gradient(135deg,var(--c-ink-2) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.form-panel .ctrl:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(20,80,75,.28)}
.form-panel .ctrl.err{border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(226,94,44,.2)}
.form-note{font-size:12.5px;color:rgba(247,246,241,.6)}
.btn-accent{
  width:100%;height:50px;border-radius:var(--r-pill);border:1px solid var(--c-accent);
  background:var(--c-accent);color:#fff;font-weight:700;font-size:15.5px;
  transition:background var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-accent:hover{background:#c94d20;border-color:#c94d20;transform:translateY(-1px);box-shadow:0 16px 34px -18px rgba(226,94,44,.6)}
.msg{font-size:13.5px;margin-top:12px;min-height:18px}
.msg.ok{color:#9BE0C6}
.msg.bad{color:#F6B79C}
@media (max-width:991.98px){
  .cta-grid{grid-template-columns:1fr}
}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:clamp(24px,4vw,56px);align-items:start}
.faq-side{position:sticky;top:96px}
.faq-side h2{font-size:clamp(1.5rem,2.4vw,2.1rem);margin:12px 0 14px}
.faq-side p{color:var(--c-ink-2);font-size:14.5px;line-height:1.8}
.acc .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--c-line)}
.acc .accordion-button{
  background:transparent;box-shadow:none;border:0;padding:20px 56px 20px 18px;min-height:60px;
  font-size:1.02rem;font-weight:700;color:var(--c-ink);line-height:1.5;border-radius:0;
  transition:background var(--ease),color var(--ease);
}
.acc .accordion-button:hover{background:rgba(230,238,235,.45)}
.acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--c-brand);outline-offset:-2px}
.acc .accordion-button:not(.collapsed){color:var(--c-brand);background:rgba(230,238,235,.5);box-shadow:inset 3px 0 0 var(--c-brand)}
.acc .accordion-button::after{
  content:"+";display:flex;align-items:center;justify-content:center;
  width:28px;height:28px;border-radius:50%;background:var(--c-brand-soft);color:var(--c-brand);
  font-size:18px;font-weight:600;line-height:1;margin-left:auto;position:absolute;right:16px;top:50%;
  transform:translateY(-50%) rotate(0deg);transition:transform var(--ease),background var(--ease);
  background-image:none;
}
.acc .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(45deg);background:var(--c-brand);color:#fff}
.acc .accordion-body{background:var(--c-bg);font-size:15px;line-height:1.8;color:var(--c-ink-2);padding:18px 22px 22px 18px}
@media (max-width:991.98px){
  .faq-grid{grid-template-columns:1fr}
  .faq-side{position:static}
}

/* 资讯列表（CMS） */
.news-list{border-top:1px solid var(--c-line)}
.news-row{
  display:grid;grid-template-columns:1fr 220px;gap:24px;align-items:center;
  padding:24px 6px;border-bottom:1px solid var(--c-line);color:inherit;
  transition:background var(--ease),padding-left var(--ease);
}
.news-row:hover{background:rgba(230,238,235,.4);padding-left:14px;color:inherit}
.news-row h3{font-size:1.06rem;font-weight:700;margin-bottom:8px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row .excerpt{font-size:14px;color:var(--c-ink-2);line-height:1.75;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:12.5px;color:var(--c-ink-3)}
.news-meta time{font-family:var(--f-num);font-variant-numeric:tabular-nums}
.chip-cat{display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:var(--r-pill);
  background:var(--c-brand-soft);color:var(--c-brand);font-size:12px;font-weight:600}
.news-arrow{display:flex;align-items:center;justify-content:flex-end;gap:12px;color:var(--c-brand);font-size:13.5px;font-weight:600}
.news-arrow i{transition:transform var(--ease)}
.news-row:hover .news-arrow i{transform:translateX(3px)}
.empty-state{padding:48px 20px;text-align:center;border-bottom:1px solid var(--c-line)}
.empty-state .ico{width:48px;height:48px;border-radius:50%;background:var(--c-brand-soft);color:var(--c-brand);
  display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:19px}
.empty-state p{font-size:14px;color:var(--c-ink-3)}
@media (max-width:767.98px){
  .news-row{grid-template-columns:1fr;gap:12px}
  .news-arrow{justify-content:flex-start}
}

/* 页脚 */
.site-foot{background:var(--c-brand-deep);color:var(--c-bg);padding-top:clamp(48px,6vw,76px)}
.foot-grid{display:grid;grid-template-columns:4fr 2.5fr 2.5fr 3fr;gap:clamp(24px,3vw,44px);padding-bottom:44px}
.foot-brand .logo{color:#fff;font-size:19px;margin-bottom:16px}
.foot-brand p{font-size:14px;color:rgba(247,246,241,.7);line-height:1.85;max-width:330px}
.site-foot h4{font-size:14px;color:#fff;margin-bottom:18px;letter-spacing:.02em}
.foot-links li{margin-bottom:11px}
.foot-links a{font-size:14px;color:rgba(247,246,241,.72);border-bottom:1px solid transparent;transition:color var(--ease),border-color var(--ease)}
.foot-links a:hover{color:#fff;border-color:#fff}
.foot-contact li{font-size:14px;color:rgba(247,246,241,.72);margin-bottom:12px;display:flex;gap:10px;align-items:flex-start}
.foot-contact i{color:var(--c-accent);margin-top:5px;font-size:12.5px}
.foot-bottom{border-top:1px solid rgba(247,246,241,.14);padding:20px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:rgba(247,246,241,.6)}
@media (max-width:991.98px){
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:575.98px){
  .foot-grid{grid-template-columns:1fr;gap:28px}
}

@media (max-width:767.98px){
  .sec{padding:calc(var(--sp) * .6) 0}
  .sec-head{margin-bottom:26px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important}
  .wall-item:hover,.news-row:hover,.point-row:hover{transform:none}
  .wall-item:hover img,.hero-visual:hover img{transform:none}
}

/* roulang page: article */
:root{
  --c-ink:#14181A;
  --c-ink-2:#525A5C;
  --c-ink-3:#8A9192;
  --c-brand:#14504B;
  --c-brand-deep:#0C332F;
  --c-brand-soft:#E6EEEB;
  --c-accent:#E25E2C;
  --c-accent-soft:#FBE9E0;
  --c-bg:#F7F6F1;
  --c-surface:#FFFFFF;
  --c-line:#E3E1DA;
  --c-line-strong:#CFCCC2;
  --f-sans:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --f-num:"Inter",ui-monospace,SFMono-Regular,monospace;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,24,26,.04),0 10px 28px -16px rgba(20,24,26,.12);
  --sh-2:0 16px 36px -18px rgba(12,51,47,.22);
  --sp:clamp(56px,7vw,112px);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:200ms var(--ease);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--f-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-brand);text-decoration:none;transition:var(--t);}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px;}
.shell{width:100%;max-width:1240px;margin:0 auto;padding:0 clamp(16px,4vw,32px);}
.num{font-family:var(--f-num);font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.site-head{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--c-surface);
  border-bottom:1px solid transparent;
  transition:var(--t);
}
.site-head.is-stuck{
  border-bottom-color:var(--c-line);
  box-shadow:0 10px 30px -24px rgba(20,24,26,.75);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
}
.logo{
  position:relative;
  display:inline-block;
  padding-right:11px;
  font-size:20px;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--c-brand);
  white-space:nowrap;
}
.logo::after{
  content:"";
  position:absolute;
  right:0;
  top:5px;
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--c-accent);
}
.nav-chipbar{
  display:flex;
  align-items:center;
  gap:8px;
  margin:0 auto;
  overflow-x:auto;
  padding:4px 2px;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.nav-chipbar::-webkit-scrollbar{display:none;}
.nav-chip{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  background:transparent;
  color:var(--c-ink-2);
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  transition:var(--t);
}
.nav-chip:hover{
  background:var(--c-brand-soft);
  border-color:var(--c-brand-soft);
  color:var(--c-brand);
}
.nav-chip.active{
  background:var(--c-brand);
  border-color:var(--c-brand);
  color:#fff;
}
.nav-chip.active:hover{
  background:var(--c-brand-deep);
  border-color:var(--c-brand-deep);
  color:#fff;
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 20px;
  border-radius:var(--r-pill);
  background:var(--c-brand);
  color:#fff;
  font-size:14px;
  font-weight:700;
  white-space:nowrap;
  box-shadow:var(--sh-1);
  transition:var(--t);
}
.nav-cta:hover{
  background:var(--c-brand-deep);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--sh-2);
}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--c-ink-3);
  padding:22px 0 4px;
}
.crumb a{
  color:var(--c-ink-3);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:var(--t);
}
.crumb a:hover{color:var(--c-brand);border-bottom-color:var(--c-brand);}
.crumb .sep{color:var(--c-line-strong);}
.crumb .cur{
  color:var(--c-ink-2);
  max-width:min(520px,70vw);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

/* ============ 文章头 ============ */
.post-head{
  padding:26px 0 30px;
  border-bottom:1px solid var(--c-line);
}
.post-cat{
  display:inline-flex;
  align-items:center;
  height:28px;
  padding:0 14px;
  border-radius:var(--r-pill);
  background:var(--c-brand-soft);
  color:var(--c-brand);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.02em;
  margin-bottom:18px;
}
.post-title{
  font-size:clamp(1.85rem,3.6vw,2.75rem);
  line-height:1.24;
  letter-spacing:-.02em;
  font-weight:800;
  max-width:900px;
  color:var(--c-ink);
}
.post-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 22px;
  margin-top:20px;
  font-size:12.5px;
  color:var(--c-ink-3);
}
.post-meta span{display:inline-flex;align-items:center;gap:7px;}
.post-meta i{color:var(--c-brand);font-size:12px;}
.post-meta time{font-family:var(--f-num);font-variant-numeric:tabular-nums;letter-spacing:.01em;}

/* ============ 封面与正文 ============ */
.post-cover{
  max-width:900px;
  margin:34px auto 0;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
  background:var(--c-brand-soft);
}
.post-cover img{width:100%;aspect-ratio:16/8;object-fit:cover;transition:transform 600ms var(--ease);}
.post-cover:hover img{transform:scale(1.04);}

.article-body{
  max-width:780px;
  margin:44px auto 0;
  font-size:17px;
  line-height:1.9;
  color:var(--c-ink);
  word-break:break-word;
}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;
  font-size:clamp(1.4rem,2.2vw,1.85rem);
  font-weight:800;
  line-height:1.4;
  margin:2.2em 0 .8em;
  padding-left:15px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.2em;
  bottom:.2em;
  width:4px;
  border-radius:3px;
  background:var(--c-brand);
}
.article-body h3{
  font-size:1.15rem;
  font-weight:700;
  margin:1.8em 0 .6em;
  color:var(--c-ink);
}
.article-body h4{font-size:1.02rem;font-weight:700;margin:1.5em 0 .5em;}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.2em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:8px;}
.article-body li::marker{color:var(--c-brand);}
.article-body blockquote{
  margin:1.6em 0;
  padding:18px 24px;
  background:var(--c-brand-soft);
  border-left:3px solid var(--c-brand);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--c-ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:var(--r-md);
  margin:1.6em auto;
  border:1px solid var(--c-line);
}
.article-body a{
  color:var(--c-brand);
  text-decoration:underline;
  text-underline-offset:3px;
  text-decoration-thickness:1px;
}
.article-body a:hover{color:var(--c-accent);}
.article-body strong{font-weight:700;}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.6em 0;
  font-size:15px;
}
.article-body th,.article-body td{
  border:1px solid var(--c-line);
  padding:11px 14px;
  text-align:left;
  vertical-align:top;
}
.article-body th{background:var(--c-brand-soft);font-weight:700;color:var(--c-ink);}
.article-body hr{border:none;border-top:1px solid var(--c-line);margin:2.2em 0;}

/* ============ 标签 ============ */
.post-tags{
  max-width:780px;
  margin:52px auto 0;
  padding-top:26px;
  border-top:1px solid var(--c-line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
}
.post-tags .lbl{font-size:13px;color:var(--c-ink-3);margin-right:4px;}
.tag-chip{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 14px;
  border-radius:var(--r-pill);
  background:var(--c-brand-soft);
  color:var(--c-brand);
  font-size:13px;
  font-weight:600;
  transition:var(--t);
}
.tag-chip:hover{background:var(--c-brand);color:#fff;}

/* ============ 空状态 ============ */
.empty-state{
  max-width:640px;
  margin:56px auto;
  padding:56px 28px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  text-align:center;
}
.empty-icon{
  width:64px;
  height:64px;
  margin:0 auto 20px;
  border-radius:50%;
  background:var(--c-brand-soft);
  color:var(--c-brand);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:24px;
}
.empty-title{font-size:1.2rem;font-weight:800;color:var(--c-ink);margin-bottom:10px;}
.empty-desc{font-size:14.5px;color:var(--c-ink-2);margin-bottom:26px;line-height:1.8;}

/* ============ 按钮 ============ */
.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-pill);
  background:var(--c-accent);
  color:#fff;
  font-size:15px;
  font-weight:700;
  border:none;
  cursor:pointer;
  box-shadow:var(--sh-1);
  transition:var(--t);
}
.btn-main:hover{background:#C74E20;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-pill);
  background:transparent;
  border:1px solid var(--c-line-strong);
  color:var(--c-ink);
  font-size:15px;
  font-weight:700;
  transition:var(--t);
}
.btn-ghost:hover{background:var(--c-brand-soft);border-color:var(--c-brand-soft);color:var(--c-brand);}

/* ============ 相关推荐 ============ */
.rel-section{
  margin-top:var(--sp);
  padding-top:clamp(32px,5vw,56px);
  border-top:1px solid var(--c-line);
}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:32px;
}
.sec-head h2{
  font-size:clamp(1.5rem,2.4vw,2.1rem);
  font-weight:800;
  line-height:1.3;
}
.sec-head p{
  margin-top:10px;
  font-size:14.5px;
  color:var(--c-ink-2);
  max-width:560px;
}
.sec-more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:700;
  color:var(--c-brand);
  white-space:nowrap;
}
.sec-more i{transition:var(--t);font-size:12px;}
.sec-more:hover{color:var(--c-accent);}
.sec-more:hover i{transform:translateX(4px);}
.rel-grid{
  display:grid;
  gap:22px;
  grid-template-columns:repeat(3,minmax(0,1fr));
}
.rel-card{
  display:flex;
  flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:var(--t);
}
.rel-card:hover,.rel-card:focus-visible{
  transform:translateY(-3px);
  border-color:var(--c-brand);
  box-shadow:var(--sh-2);
}
.rel-thumb{
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--c-brand-soft);
}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 600ms var(--ease);}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.rel-body h3{
  font-size:1.05rem;
  font-weight:700;
  line-height:1.5;
  margin-bottom:10px;
  color:var(--c-ink);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rel-body p{
  font-size:14px;
  line-height:1.75;
  color:var(--c-ink-2);
  margin-bottom:16px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rel-more{
  margin-top:auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  color:var(--c-brand);
}
.rel-more i{font-size:11px;transition:var(--t);}
.rel-card:hover .rel-more i{transform:translateX(3px);}

/* ============ 结尾 CTA ============ */
.end-cta{margin-top:var(--sp);}
.end-cta-box{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:clamp(30px,4vw,48px) clamp(26px,4vw,52px);
  background:var(--c-brand-soft);
  border:1px solid #D3E2DD;
  border-radius:var(--r-lg);
}
.end-cta-box h2{
  font-size:clamp(1.3rem,2.1vw,1.7rem);
  font-weight:800;
  line-height:1.35;
  margin-bottom:12px;
  color:var(--c-brand-deep);
}
.end-cta-box p{
  font-size:14.5px;
  color:var(--c-ink-2);
  max-width:620px;
}
.back-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:30px;
  font-size:14px;
  font-weight:700;
  color:var(--c-brand);
}
.back-link i{font-size:12px;transition:var(--t);}
.back-link:hover{color:var(--c-accent);}
.back-link:hover i{transform:translateX(-3px);}

/* ============ 页脚 ============ */
.site-foot{
  margin-top:var(--sp);
  background:var(--c-brand-deep);
  color:var(--c-bg);
  padding:clamp(46px,6vw,76px) 0 26px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:clamp(24px,4vw,52px);
}
.foot-brand .logo{color:var(--c-bg);font-size:19px;margin-bottom:16px;}
.foot-brand p{
  font-size:13.5px;
  line-height:1.85;
  color:rgba(247,246,241,.68);
  max-width:320px;
}
.site-foot h4{
  font-size:14px;
  font-weight:800;
  color:var(--c-bg);
  margin-bottom:18px;
  letter-spacing:.02em;
}
.foot-links li{margin-bottom:11px;}
.foot-links a{
  font-size:13.5px;
  color:rgba(247,246,241,.72);
  border-bottom:1px solid transparent;
  transition:var(--t);
}
.foot-links a:hover{color:#fff;border-bottom-color:rgba(247,246,241,.7);}
.foot-contact li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13.5px;
  color:rgba(247,246,241,.72);
  margin-bottom:13px;
  line-height:1.7;
}
.foot-contact i{color:var(--c-accent);font-size:13px;margin-top:5px;}
.foot-bottom{
  margin-top:clamp(34px,5vw,58px);
  padding-top:20px;
  border-top:1px solid rgba(247,246,241,.14);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:12.5px;
  color:rgba(247,246,241,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .rel-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
  .foot-grid{grid-template-columns:1.3fr 1fr 1fr;}
  .foot-grid > div:last-child{grid-column:1 / -1;}
}
@media (max-width:991.98px){
  .nav-inner{
    flex-wrap:wrap;
    gap:10px 12px;
    padding:12px 0;
    min-height:0;
  }
  .logo{order:1;font-size:18px;}
  .nav-cta{order:2;margin-left:auto;height:38px;padding:0 16px;font-size:13.5px;}
  .nav-chipbar{
    order:3;
    flex-basis:100%;
    margin:0;
    padding:2px 0 4px;
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 14px,#000 calc(100% - 14px),transparent 100%);
    mask-image:linear-gradient(90deg,transparent 0,#000 14px,#000 calc(100% - 14px),transparent 100%);
  }
  .post-cover img{aspect-ratio:16/9;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .end-cta-box{flex-direction:column;align-items:flex-start;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .foot-grid > div:last-child{grid-column:auto;}
}
@media (max-width:767.98px){
  :root{--sp:clamp(38px,9vw,62px);}
  body{font-size:16px;}
  .article-body{font-size:16px;margin-top:32px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .post-title{font-size:clamp(1.55rem,6vw,2rem);}
  .crumb .cur{max-width:60vw;}
  .rel-grid{grid-template-columns:1fr;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .post-cover{border-radius:var(--r-md);}
}
@media (max-width:575.98px){
  .foot-grid{grid-template-columns:1fr;}
  .post-meta{gap:6px 16px;}
  .empty-state{padding:40px 20px;}
  .end-cta-box{padding:26px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html{scroll-behavior:auto;}
  .rel-card:hover{transform:none;}
  .rel-card:hover .rel-thumb img{transform:none;}
  .post-cover:hover img{transform:none;}
  .nav-cta:hover{transform:none;}
}

/* roulang page: category1 */
:root{
  --c-ink:#14181A;
  --c-ink-2:#525A5C;
  --c-ink-3:#8A9192;
  --c-brand:#14504B;
  --c-brand-deep:#0C332F;
  --c-brand-soft:#E6EEEB;
  --c-accent:#E25E2C;
  --c-accent-soft:#FBE9E0;
  --c-bg:#F7F6F1;
  --c-surface:#FFFFFF;
  --c-line:#E3E1DA;
  --c-line-strong:#CFCCC2;
  --f-sans:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --f-num:"Inter",ui-monospace,SFMono-Regular,monospace;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sp:clamp(56px,7vw,112px);
  --sh-1:0 1px 2px rgba(20,24,26,.04),0 10px 28px -16px rgba(20,24,26,.12);
  --sh-2:0 16px 36px -18px rgba(12,51,47,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--f-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.22;letter-spacing:-.02em;color:var(--c-ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);}
img{max-width:100%;height:auto;display:block;}
button,input{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:3px;border-radius:4px;}
.shell{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:clamp(16px,4vw,32px);
  padding-right:clamp(16px,4vw,32px);
}
.num{font-family:var(--f-num);font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-head{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--c-surface);
  border-bottom:1px solid transparent;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-head.is-stuck{
  border-bottom-color:var(--c-line);
  box-shadow:0 10px 26px -22px rgba(12,51,47,.5);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:76px;
  padding-top:10px;
  padding-bottom:10px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:19px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--c-brand);
  flex:0 0 auto;
}
.logo::after{
  content:"";
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--c-accent);
  display:inline-block;
}
.chipbar{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1 1 auto;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  scrollbar-width:none;
  -ms-overflow-style:none;
  padding:4px 2px;
  margin:0 auto;
}
.chipbar::-webkit-scrollbar{display:none;}
.nav-chip{
  flex:0 0 auto;
  scroll-snap-align:center;
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  background:transparent;
  color:var(--c-ink-2);
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
}
.nav-chip:hover{
  background:var(--c-brand-soft);
  border-color:var(--c-brand-soft);
  color:var(--c-brand);
}
.nav-chip.active{
  background:var(--c-brand);
  border-color:var(--c-brand);
  color:#fff;
}
.nav-cta{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:42px;
  padding:0 22px;
  border-radius:var(--r-pill);
  background:var(--c-brand);
  color:#fff;
  font-size:14.5px;
  font-weight:700;
  margin-left:4px;
  box-shadow:var(--sh-1);
}
.nav-cta:hover{
  background:var(--c-brand-deep);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--sh-2);
}
@media (max-width:991.98px){
  .nav-inner{flex-wrap:wrap;gap:12px;}
  .chipbar{
    order:3;
    flex:1 0 100%;
    width:100%;
    margin:0 -2px;
    padding-bottom:2px;
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
    mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
  }
}

/* ---------- breadcrumb ---------- */
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-ink-3);
  padding-top:24px;
  flex-wrap:wrap;
}
.crumb a:hover{color:var(--c-brand);}
.crumb .sep{color:var(--c-line-strong);}

/* ---------- hero ---------- */
.hero{padding:clamp(28px,4vw,52px) 0 clamp(40px,5vw,72px);}
.hero-grid{
  display:grid;
  grid-template-columns:6fr 6fr;
  gap:clamp(24px,4vw,64px);
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--f-num);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--c-accent);
  text-transform:uppercase;
  margin-bottom:18px;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:var(--c-accent);
  display:inline-block;
}
.hero h1{
  font-size:clamp(2.3rem,5vw,4rem);
  font-weight:800;
  line-height:1.08;
  letter-spacing:-.02em;
}
.hero-sub{
  margin-top:20px;
  font-size:17px;
  line-height:1.8;
  color:var(--c-ink-2);
  max-width:560px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:32px;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:30px;
  padding-top:22px;
  border-top:1px solid var(--c-line);
}
.hero-tags span{
  font-size:13px;
  font-weight:600;
  color:var(--c-ink-2);
  display:inline-flex;
  align-items:center;
  gap:7px;
}
.hero-tags i{color:var(--c-brand);font-size:12px;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
}
.hero-badge{
  position:absolute;
  left:22px;
  bottom:22px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:14px 18px;
  box-shadow:var(--sh-1);
  max-width:240px;
}
.hero-badge strong{
  display:block;
  font-size:14px;
  font-weight:700;
  color:var(--c-brand);
}
.hero-badge small{
  display:block;
  margin-top:4px;
  font-size:12.5px;
  color:var(--c-ink-3);
  line-height:1.6;
}
@media (max-width:991.98px){
  .hero-grid{grid-template-columns:1fr;}
  .hero-sub{max-width:none;}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:15px;
  font-weight:700;
  cursor:pointer;
  white-space:nowrap;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-main{background:var(--c-brand);color:#fff;}
.btn-main:hover{background:var(--c-brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;border-color:var(--c-line-strong);color:var(--c-ink);}
.btn-ghost:hover{background:var(--c-brand-soft);border-color:var(--c-brand);color:var(--c-brand);}
.btn-accent{background:var(--c-accent);color:#fff;}
.btn-accent:hover{background:#c94e21;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}

/* ---------- section ---------- */
.sec{padding:var(--sp) 0;}
.sec-tight{padding:clamp(36px,5vw,72px) 0;}
.sec-head{max-width:740px;margin-bottom:clamp(28px,4vw,48px);}
.sec-head h2{font-size:clamp(1.5rem,2.4vw,2.1rem);}
.sec-head p{margin-top:14px;color:var(--c-ink-2);font-size:16px;line-height:1.85;}
.chip{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--c-brand-soft);
  color:var(--c-brand);
  font-size:12.5px;
  font-weight:600;
}

/* ---------- doc layout: sticky anchors + entries ---------- */
.doc-layout{
  display:grid;
  grid-template-columns:216px minmax(0,1fr);
  gap:clamp(24px,4vw,56px);
  align-items:start;
}
.anchor-col{position:sticky;top:104px;}
.anchor-title{
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--c-ink-3);
  font-family:var(--f-num);
  margin-bottom:14px;
}
.anchor-list a{
  display:block;
  padding:9px 14px;
  font-size:14px;
  font-weight:600;
  color:var(--c-ink-2);
  border-left:2px solid var(--c-line);
}
.anchor-list a:hover{
  color:var(--c-brand);
  border-left-color:var(--c-brand);
  background:var(--c-brand-soft);
}
.doc-group + .doc-group{margin-top:44px;}
.doc-group h3{
  font-size:1.15rem;
  font-weight:800;
  margin-bottom:6px;
  display:flex;
  align-items:center;
  gap:10px;
}
.doc-group h3 i{color:var(--c-accent);font-size:14px;}
.entry{
  display:grid;
  grid-template-columns:56px minmax(0,1fr) 24px;
  gap:14px;
  align-items:start;
  padding:22px 4px;
  border-top:1px solid var(--c-line);
  transition:background-color .2s var(--ease),padding-left .2s var(--ease);
}
.doc-group .entry:last-of-type{border-bottom:1px solid var(--c-line);}
.entry:hover{background:var(--c-brand-soft);padding-left:14px;}
.entry-num{
  font-family:var(--f-num);
  font-variant-numeric:tabular-nums;
  font-size:13.5px;
  font-weight:600;
  color:var(--c-ink-3);
  letter-spacing:.08em;
  padding-top:5px;
}
.entry:hover .entry-num{color:var(--c-brand);}
.entry h4{
  font-size:1.05rem;
  font-weight:700;
  line-height:1.5;
}
.entry p{
  margin-top:6px;
  font-size:14px;
  line-height:1.75;
  color:var(--c-ink-2);
}
.entry-go{
  color:var(--c-line-strong);
  padding-top:6px;
  transition:transform .2s var(--ease),color .2s var(--ease);
}
.entry:hover .entry-go{transform:translateX(3px);color:var(--c-accent);}
@media (max-width:991.98px){
  .doc-layout{grid-template-columns:1fr;}
  .anchor-col{position:static;}
  .anchor-list{
    display:flex;
    gap:8px;
    overflow-x:auto;
    scrollbar-width:none;
    padding-bottom:4px;
  }
  .anchor-list::-webkit-scrollbar{display:none;}
  .anchor-list li{flex:0 0 auto;}
  .anchor-list a{
    border-left:0;
    border:1px solid var(--c-line);
    border-radius:var(--r-pill);
    padding:7px 16px;
    white-space:nowrap;
    background:var(--c-surface);
  }
}
@media (max-width:575.98px){
  .entry{grid-template-columns:44px minmax(0,1fr);}
  .entry-go{display:none;}
}

/* ---------- fit list ---------- */
.fit-wrap{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0 clamp(24px,4vw,56px);
}
.fit-wrap li{
  display:flex;
  gap:12px;
  padding:18px 0;
  border-bottom:1px solid var(--c-line);
  font-size:15px;
  color:var(--c-ink-2);
  line-height:1.75;
}
.fit-wrap i{color:var(--c-brand);margin-top:6px;font-size:13px;}
.fit-wrap strong{color:var(--c-ink);font-weight:700;}
@media (max-width:767.98px){
  .fit-wrap{grid-template-columns:1fr;}
}

/* ---------- points ---------- */
.points{border-top:1px solid var(--c-line);}
.point{
  display:grid;
  grid-template-columns:120px minmax(0,1fr);
  gap:clamp(16px,3vw,32px);
  padding:28px 0;
  border-bottom:1px solid var(--c-line);
}
.point:nth-child(even){padding-left:40px;}
.point-num{
  font-family:var(--f-num);
  font-variant-numeric:tabular-nums;
  font-size:clamp(2rem,3.4vw,2.8rem);
  font-weight:700;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1px var(--c-brand);
}
.point:nth-child(odd) .point-num{
  color:var(--c-accent);
  -webkit-text-stroke:0;
}
.point h3{font-size:1.1rem;font-weight:700;}
.point p{margin-top:8px;font-size:15px;color:var(--c-ink-2);line-height:1.8;max-width:640px;}
@media (max-width:767.98px){
  .point{grid-template-columns:1fr;padding:24px 0;}
  .point:nth-child(even){padding-left:0;}
}

/* ---------- split media ---------- */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:clamp(24px,4vw,56px);
  align-items:center;
}
.split + .split{margin-top:clamp(40px,6vw,80px);}
.split.rev .split-media{order:2;}
.split-media img{
  width:100%;
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:transform .6s var(--ease);
}
.split-media:hover img{transform:scale(1.04);}
.split-media{overflow:hidden;border-radius:var(--r-lg);}
.split-body h3{font-size:clamp(1.25rem,2vw,1.6rem);}
.split-body p{margin-top:14px;color:var(--c-ink-2);font-size:15.5px;line-height:1.85;}
.mini-list{margin-top:20px;}
.mini-list li{
  display:flex;
  gap:10px;
  font-size:14.5px;
  color:var(--c-ink-2);
  padding:8px 0;
}
.mini-list i{color:var(--c-brand);margin-top:6px;font-size:12px;}
@media (max-width:767.98px){
  .split{grid-template-columns:1fr;}
  .split.rev .split-media{order:0;}
}

/* ---------- faq ---------- */
.faq-grid{
  display:grid;
  grid-template-columns:280px minmax(0,1fr);
  gap:clamp(24px,4vw,64px);
  align-items:start;
}
.faq-side{position:sticky;top:112px;}
.faq-side h2{font-size:clamp(1.5rem,2.4vw,2.1rem);}
.faq-side p{margin-top:14px;font-size:14.5px;color:var(--c-ink-2);line-height:1.8;}
.faq-acc .accordion-item{
  background:transparent;
  border:0;
  border-top:1px solid var(--c-line);
  border-radius:0;
}
.faq-acc .accordion-item:last-child{border-bottom:1px solid var(--c-line);}
.faq-acc .accordion-header{margin:0;}
.faq-acc .accordion-button{
  width:100%;
  min-height:60px;
  padding:14px 8px;
  background:transparent;
  border:0;
  border-radius:0;
  box-shadow:none;
  font-size:1.02rem;
  font-weight:700;
  color:var(--c-ink);
  line-height:1.5;
  display:flex;
  align-items:center;
  gap:16px;
  transition:color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--c-brand);
  background:transparent;
  box-shadow:inset 3px 0 0 var(--c-brand);
  padding-left:18px;
}
.faq-acc .accordion-button:focus{box-shadow:none;}
.faq-acc .accordion-button:focus-visible{outline:2px solid var(--c-brand);outline-offset:-2px;}
.faq-acc .accordion-button::after{
  content:"+";
  margin-left:auto;
  flex:0 0 auto;
  width:28px;
  height:28px;
  border-radius:50%;
  background-color:var(--c-brand-soft);
  color:var(--c-brand);
  background-image:none;
  font-size:17px;
  font-weight:600;
  line-height:1;
  display:flex;
  align-items:center;
  justify-content:center;
  transform:none;
  transition:transform .24s var(--ease),background-color .24s var(--ease),color .24s var(--ease);
}
.faq-acc .accordion-button:not(.collapsed)::after{
  transform:rotate(45deg);
  background-color:var(--c-brand);
  color:#fff;
}
.faq-acc .accordion-body{
  background:var(--c-bg);
  padding:18px 22px 22px;
  font-size:15px;
  line-height:1.8;
  color:var(--c-ink-2);
  border-radius:0 0 var(--r-sm) var(--r-sm);
}
@media (max-width:991.98px){
  .faq-grid{grid-template-columns:1fr;}
  .faq-side{position:static;margin-bottom:8px;}
}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--c-brand-soft);
  border-radius:var(--r-lg);
  padding:clamp(32px,5vw,60px);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(1.4rem,2.2vw,1.9rem);max-width:520px;}
.cta-band p{margin-top:12px;color:var(--c-ink-2);font-size:15px;max-width:520px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-foot{
  background:var(--c-brand-deep);
  color:var(--c-bg);
  margin-top:var(--sp);
  padding-top:clamp(48px,6vw,72px);
}
.foot-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
}
.foot-brand .logo{color:#fff;font-size:19px;}
.foot-brand p{
  margin-top:14px;
  font-size:14px;
  line-height:1.8;
  color:rgba(247,246,241,.7);
  max-width:320px;
}
.site-foot h4{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:18px;
}
.foot-links li + li{margin-top:10px;}
.foot-links a{
  font-size:14px;
  color:rgba(247,246,241,.78);
}
.foot-links a:hover{
  color:#fff;
  text-decoration:underline;
  text-underline-offset:4px;
}
.foot-contact li{
  display:flex;
  gap:10px;
  font-size:14px;
  color:rgba(247,246,241,.78);
  line-height:1.7;
}
.foot-contact li + li{margin-top:12px;}
.foot-contact i{color:var(--c-accent);margin-top:6px;font-size:13px;}
.foot-bottom{
  margin-top:48px;
  border-top:1px solid rgba(247,246,241,.14);
  padding:20px 0 28px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:rgba(247,246,241,.6);
}
@media (max-width:991.98px){
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:575.98px){
  .foot-grid{grid-template-columns:1fr;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    transition-duration:.01ms !important;
    animation-duration:.01ms !important;
  }
  .entry:hover{transform:none;padding-left:4px;}
  .entry:hover .entry-go{transform:none;}
  .split-media:hover img{transform:none;}
  .btn:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --c-ink:#14181A;
  --c-ink-2:#525A5C;
  --c-ink-3:#8A9192;
  --c-brand:#14504B;
  --c-brand-deep:#0C332F;
  --c-brand-soft:#E6EEEB;
  --c-accent:#E25E2C;
  --c-accent-soft:#FBE9E0;
  --c-bg:#F7F6F1;
  --c-surface:#FFFFFF;
  --c-line:#E3E1DA;
  --c-line-strong:#CFCCC2;
  --f-sans:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --f-num:"Inter",ui-monospace,SFMono-Regular,monospace;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,24,26,.04),0 10px 28px -16px rgba(20,24,26,.12);
  --sh-2:0 16px 36px -18px rgba(12,51,47,.22);
  --sp:clamp(56px,7vw,112px);
  --t:200ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--f-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-md)}
a{color:var(--c-brand);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--c-brand-deep)}
h1,h2,h3,h4{margin:0;font-weight:800;color:var(--c-ink);letter-spacing:-.02em}
h1{font-size:clamp(2.3rem,5vw,4rem);line-height:1.08}
h2{font-size:clamp(1.5rem,2.4vw,2.1rem);line-height:1.24}
h3{font-size:1.1rem;font-weight:700;line-height:1.4;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--c-brand);outline-offset:3px;border-radius:var(--r-sm);
}
.shell{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:clamp(16px,4vw,32px);
  padding-right:clamp(16px,4vw,32px);
}
.section{padding:var(--sp) 0}
.section-tight{padding:calc(var(--sp) * .72) 0}
.sec-head{max-width:760px;margin-bottom:clamp(28px,3.4vw,48px)}
.sec-head h2{margin-bottom:14px}
.sec-head p{color:var(--c-ink-2);font-size:16px;line-height:1.8}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.14em;
  color:var(--c-brand);text-transform:uppercase;margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);border-radius:2px}

/* ---------- 顶部提示条 ---------- */
.topline{background:var(--c-brand-deep);color:var(--c-bg)}
.topline-inner{
  display:flex;align-items:center;gap:16px;
  min-height:42px;font-size:13px;line-height:1.5;
}
.topline-tag{
  flex:0 0 auto;padding:3px 10px;border-radius:var(--r-pill);
  background:rgba(247,246,241,.14);font-size:12px;font-weight:700;letter-spacing:.04em;
}
.topline-text{flex:1 1 auto;color:rgba(247,246,241,.86);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topline-timer{
  flex:0 0 auto;font-family:var(--f-num);font-variant-numeric:tabular-nums;
  font-size:15px;font-weight:600;letter-spacing:.02em;color:#fff;
}
.topline-link{
  flex:0 0 auto;color:var(--c-bg);font-size:12.5px;font-weight:600;
  border-bottom:1px solid rgba(247,246,241,.35);padding-bottom:2px;
  transition:border-color var(--t),color var(--t);
}
.topline-link:hover{color:#fff;border-color:#fff}
.topline-link i{margin-left:5px;font-size:11px}

/* ---------- 导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:60;background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--t),border-color var(--t);
}
.site-head.is-stuck{box-shadow:0 1px 2px rgba(20,24,26,.05),0 12px 26px -20px rgba(12,51,47,.3)}
.nav-inner{display:flex;align-items:center;gap:clamp(16px,2.4vw,28px);min-height:74px;flex-wrap:wrap}
.logo{
  position:relative;flex:0 0 auto;padding-right:12px;
  font-size:1.16rem;font-weight:800;color:var(--c-brand);
  letter-spacing:-.01em;line-height:1.2;
}
.logo::after{
  content:"";position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--c-accent);
}
.chipbar{
  display:flex;align-items:center;gap:8px;
  flex:1 1 auto;justify-content:center;flex-wrap:wrap;
}
.nav-chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid var(--c-line);
  font-size:14px;font-weight:600;color:var(--c-ink-2);background:transparent;
  white-space:nowrap;transition:background var(--t),color var(--t),border-color var(--t);
}
.nav-chip:hover{background:var(--c-brand-soft);color:var(--c-brand-deep);border-color:var(--c-brand-soft)}
.nav-chip.active{background:var(--c-brand);border-color:var(--c-brand);color:#fff}
.nav-cta{
  flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 22px;border-radius:var(--r-pill);
  background:var(--c-brand);color:#fff;font-size:14px;font-weight:700;
  box-shadow:0 8px 20px -14px rgba(12,51,47,.7);
  transition:background var(--t),transform var(--t),box-shadow var(--t);
}
.nav-cta:hover{background:var(--c-brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
@media (max-width:991.98px){
  .nav-inner{padding-top:12px;padding-bottom:12px;gap:12px}
  .chipbar{
    order:3;width:100%;flex-wrap:nowrap;justify-content:flex-start;
    overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;
    -webkit-overflow-scrolling:touch;
    -webkit-mask-image:linear-gradient(90deg,transparent,#000 18px,#000 calc(100% - 18px),transparent);
    mask-image:linear-gradient(90deg,transparent,#000 18px,#000 calc(100% - 18px),transparent);
  }
  .chipbar::-webkit-scrollbar{display:none}
  .nav-chip{flex:0 0 auto;scroll-snap-align:start}
  .nav-cta{margin-left:auto}
}

/* ---------- 面包屑 ---------- */
.crumb{padding-top:24px}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3)}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li span{color:var(--c-line-strong)}
.crumb a{color:var(--c-ink-2);font-weight:600}
.crumb a:hover{color:var(--c-brand);text-decoration:underline;text-underline-offset:3px}
.crumb [aria-current="page"]{color:var(--c-ink-3)}

/* ---------- Hero ---------- */
.hero{padding:clamp(28px,4vw,52px) 0 var(--sp)}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4.4vw,64px);align-items:center}
.hero h1{margin-bottom:20px}
.hero .lead{font-size:18px;line-height:1.78;color:var(--c-ink-2);max-width:52ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn i{font-size:13px;transition:transform var(--t)}
.btn-primary{background:var(--c-brand);color:#fff;box-shadow:0 10px 24px -16px rgba(12,51,47,.8)}
.btn-primary:hover{background:var(--c-brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-ghost{background:transparent;color:var(--c-brand);border-color:var(--c-line-strong)}
.btn-ghost:hover{background:var(--c-brand-soft);color:var(--c-brand-deep);border-color:var(--c-brand-soft);transform:translateY(-1px)}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:#C64D20;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.hero-metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  margin-top:38px;border-top:1px solid var(--c-line);
}
.hero-metrics li{
  padding:18px 16px 0 0;border-right:1px solid var(--c-line);
}
.hero-metrics li:last-child{border-right:0}
.hero-metrics b{
  display:block;font-family:var(--f-num);font-variant-numeric:tabular-nums;
  font-size:1.45rem;font-weight:700;color:var(--c-brand);line-height:1.2;
}
.hero-metrics span{display:block;font-size:12.5px;color:var(--c-ink-3);margin-top:6px}
.hero-media{position:relative;overflow:hidden;border-radius:var(--r-lg);box-shadow:var(--sh-1)}
.hero-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;border-radius:var(--r-lg);transition:transform 600ms cubic-bezier(.2,.7,.3,1)}
.hero-media:hover img{transform:scale(1.04)}
.hero-media::after{
  content:"";position:absolute;inset:auto 0 0 0;height:42%;
  background:linear-gradient(180deg,rgba(12,51,47,0),rgba(12,51,47,.42));
  border-radius:0 0 var(--r-lg) var(--r-lg);pointer-events:none;
}
.hero-media figcaption{
  position:absolute;left:20px;bottom:16px;z-index:2;color:#fff;
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
@media (max-width:991.98px){
  .hero-grid{grid-template-columns:1fr}
  .hero .lead{font-size:16.5px}
  .hero-metrics{grid-template-columns:repeat(2,1fr)}
  .hero-metrics li{padding:16px 12px 0 0}
  .hero-metrics li:nth-child(2n){border-right:0}
}

/* ---------- 双栏图文交错 ---------- */
.alt-list{display:flex;flex-direction:column;gap:clamp(40px,6vw,84px)}
.alt-row{display:grid;grid-template-columns:6fr 6fr;gap:clamp(24px,4vw,64px);align-items:center}
.alt-row .alt-media{margin:0;position:relative;overflow:hidden;border-radius:var(--r-md);box-shadow:var(--sh-1);transition:box-shadow var(--t),transform var(--t)}
.alt-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-md);transition:transform 600ms cubic-bezier(.2,.7,.3,1)}
.alt-row:hover .alt-media{box-shadow:var(--sh-2);transform:translateY(-3px)}
.alt-row:hover .alt-media img{transform:scale(1.04)}
.alt-row:nth-child(even) .alt-media{order:2}
.alt-num{
  display:inline-block;font-family:var(--f-num);font-variant-numeric:tabular-nums;
  font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--c-accent);
  margin-bottom:14px;
}
.alt-body h3{font-size:clamp(1.25rem,1.8vw,1.55rem);margin-bottom:14px;letter-spacing:-.02em}
.alt-body p{color:var(--c-ink-2);font-size:16px;line-height:1.85}
.tick-list{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.tick-list li{position:relative;padding-left:26px;font-size:14.5px;color:var(--c-ink-2);line-height:1.7}
.tick-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:1px;color:var(--c-brand);font-size:12px;
}
@media (max-width:767.98px){
  .alt-row{grid-template-columns:1fr;gap:22px}
  .alt-row:nth-child(even) .alt-media{order:0}
  .alt-media img{aspect-ratio:16/10}
}

/* ---------- 状态数据块 ---------- */
.status-band{background:var(--c-brand-soft);border-radius:var(--r-lg);padding:clamp(28px,4vw,48px)}
.status-band h2{margin-bottom:8px}
.status-band > p{color:var(--c-ink-2);max-width:64ch}
.status-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px}
.status-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.status-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-brand)}
.status-card .badge-soft{
  display:inline-block;font-size:12px;font-weight:700;color:var(--c-brand);
  background:var(--c-brand-soft);padding:3px 10px;border-radius:var(--r-pill);margin-bottom:12px;
}
.status-card h3{margin-bottom:10px}
.status-card p{font-size:14px;color:var(--c-ink-2);line-height:1.75}
.status-card .num{
  font-family:var(--f-num);font-variant-numeric:tabular-nums;font-size:1.6rem;
  font-weight:700;color:var(--c-accent);display:block;margin-top:14px;
}
@media (max-width:991.98px){.status-grid{grid-template-columns:1fr 1fr}}
@media (max-width:575.98px){.status-grid{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:minmax(220px,320px) 1fr;gap:clamp(28px,4vw,64px);align-items:start}
.faq-side{position:sticky;top:112px}
.faq-side h2{margin-bottom:14px}
.faq-side p{font-size:14.5px;color:var(--c-ink-2);line-height:1.8}
.faq-side .side-link{
  display:inline-flex;align-items:center;gap:8px;margin-top:18px;
  font-size:14px;font-weight:700;color:var(--c-brand);
  border-bottom:1px solid var(--c-line-strong);padding-bottom:3px;
}
.faq-side .side-link:hover{border-color:var(--c-brand)}
.faq-side .side-link i{transition:transform var(--t)}
.faq-side .side-link:hover i{transform:translateX(3px)}
.accordion-item{
  background:transparent;border:0;border-top:1px solid var(--c-line);
}
.accordion-item:last-child{border-bottom:1px solid var(--c-line)}
.accordion-button{
  background:transparent;box-shadow:none;border-radius:0;
  padding:20px 56px 20px 0;font-size:16.5px;font-weight:700;color:var(--c-ink);
  line-height:1.6;position:relative;
}
.accordion-button:not(.collapsed){background:transparent;color:var(--c-brand)}
.accordion-button:focus{box-shadow:none;border-color:transparent;outline:2px solid var(--c-brand);outline-offset:-2px}
.accordion-button::after{
  content:"\2b";display:flex;align-items:center;justify-content:center;
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border-radius:50%;background:var(--c-brand-soft);
  color:var(--c-brand);font-size:15px;font-weight:700;
  background-image:none;transition:transform var(--t),background var(--t),color var(--t);
}
.accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(45deg);background:var(--c-brand);color:#fff}
.accordion-button::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;
  background:transparent;border-radius:2px;transition:background var(--t);
}
.accordion-button:not(.collapsed)::before{background:var(--c-brand)}
.accordion-button.collapsed{padding-left:20px}
.accordion-button:not(.collapsed){padding-left:20px}
.accordion-body{
  padding:2px 20px 24px 20px;background:var(--c-bg);
  font-size:15px;line-height:1.8;color:var(--c-ink-2);
  border-radius:0 0 var(--r-sm) var(--r-sm);
}
@media (max-width:991.98px){
  .faq-wrap{grid-template-columns:1fr}
  .faq-side{position:static}
  .accordion-button{font-size:15.5px}
}

/* ---------- CTA 收尾 ---------- */
.cta-band{
  background:var(--c-brand-soft);border-radius:var(--r-lg);
  padding:clamp(30px,4.6vw,58px);
  display:grid;grid-template-columns:1fr auto;gap:26px;align-items:center;
}
.cta-band h2{margin-bottom:10px}
.cta-band p{color:var(--c-ink-2);font-size:15px;max-width:56ch}
.cta-band .btn{flex:0 0 auto}
@media (max-width:767.98px){
  .cta-band{grid-template-columns:1fr;text-align:left}
  .cta-band .btn{width:100%}
}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--c-brand-deep);color:var(--c-bg);margin-top:var(--sp);padding:clamp(48px,6vw,76px) 0 24px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:clamp(24px,3vw,40px)}
.foot-brand .logo{color:var(--c-bg);margin-bottom:14px;font-size:1.14rem}
.foot-brand p{font-size:13.5px;line-height:1.8;color:rgba(247,246,241,.72);max-width:34ch}
.site-foot h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.foot-links,.foot-contact{display:flex;flex-direction:column;gap:10px}
.foot-links a{font-size:13.5px;color:rgba(247,246,241,.76);border-bottom:1px solid transparent;align-self:flex-start}
.foot-links a:hover{color:#fff;border-color:rgba(247,246,241,.6)}
.foot-contact li{display:flex;gap:10px;font-size:13.5px;color:rgba(247,246,241,.76);line-height:1.7}
.foot-contact i{color:var(--c-accent);margin-top:5px;font-size:12px}
.foot-bottom{
  margin-top:clamp(32px,4vw,52px);padding-top:20px;border-top:1px solid rgba(247,246,241,.16);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.5px;color:rgba(247,246,241,.6);
}
@media (max-width:991.98px){.foot-grid{grid-template-columns:1fr 1fr}}
@media (max-width:575.98px){.foot-grid{grid-template-columns:1fr}}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .alt-row:hover .alt-media,
  .hero-media:hover img,
  .status-card:hover,
  .btn:hover{transform:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --c-ink:#14181A;
  --c-ink-2:#525A5C;
  --c-ink-3:#8A9192;
  --c-brand:#14504B;
  --c-brand-deep:#0C332F;
  --c-brand-soft:#E6EEEB;
  --c-accent:#E25E2C;
  --c-accent-soft:#FBE9E0;
  --c-bg:#F7F6F1;
  --c-surface:#FFFFFF;
  --c-line:#E3E1DA;
  --c-line-strong:#CFCCC2;
  --f-sans:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --f-num:"Inter",ui-monospace,SFMono-Regular,monospace;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,24,26,.04),0 10px 28px -16px rgba(20,24,26,.12);
  --sh-2:0 16px 36px -18px rgba(12,51,47,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sp:clamp(56px,7vw,112px);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--f-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color 200ms var(--ease),background-color 200ms var(--ease),border-color 200ms var(--ease);}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}

.shell{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 clamp(16px,4vw,32px);
}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--c-brand-deep);
  color:var(--c-bg);
  font-size:13px;
}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:42px;
  padding-top:5px;
  padding-bottom:5px;
}
.topbar-left{
  display:flex;
  align-items:center;
  gap:12px;
  min-width:0;
}
.topbar-tag{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:3px 10px;
  border-radius:var(--r-pill);
  background:rgba(247,246,241,.12);
  font-size:12.5px;
  white-space:nowrap;
}
.topbar-tag i{color:var(--c-accent);font-size:11px;}
.topbar-text{
  color:rgba(247,246,241,.78);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.topbar-date{
  font-family:var(--f-num);
  font-variant-numeric:tabular-nums;
  font-weight:600;
  font-size:14px;
  letter-spacing:.02em;
  color:var(--c-bg);
}
.topbar-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:rgba(247,246,241,.88);
  white-space:nowrap;
  font-size:13px;
}
.topbar-link:hover{color:#fff;}
.topbar-link i{font-size:11px;transition:transform 200ms var(--ease);}
.topbar-link:hover i{transform:translateX(3px);}

/* ---------- 导航 ---------- */
.site-head{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow 200ms var(--ease);
}
.site-head.is-stuck{box-shadow:0 10px 28px -16px rgba(20,24,26,.18);}
.nav-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:19px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--c-brand);
  white-space:nowrap;
}
.logo::after{
  content:"";
  width:4px;
  height:4px;
  border-radius:50%;
  background:var(--c-accent);
  display:block;
}
.chipbar{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  flex:1 1 auto;
  min-width:0;
}
.nav-chip{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  background:transparent;
  color:var(--c-ink-2);
  font-size:14px;
  white-space:nowrap;
}
.nav-chip:hover{
  background:var(--c-brand-soft);
  border-color:var(--c-brand-soft);
  color:var(--c-brand);
}
.nav-chip.active{
  background:var(--c-brand);
  border-color:var(--c-brand);
  color:#fff;
  font-weight:600;
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:40px;
  padding:0 20px;
  border-radius:var(--r-pill);
  background:var(--c-brand);
  color:#fff;
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  margin-left:24px;
}
.nav-cta:hover{background:var(--c-brand-deep);color:#fff;transform:translateY(-1px);}
.nav-cta:active{transform:translateY(0);}

/* ---------- 面包屑 ---------- */
.crumb{
  padding-top:20px;
  font-size:13px;
  color:var(--c-ink-3);
}
.crumb .sep{margin:0 8px;color:var(--c-line-strong);}
.crumb a:hover{color:var(--c-brand);text-decoration:underline;text-underline-offset:3px;}
.crumb .cur{color:var(--c-ink-2);}

/* ---------- 通栏 Hero ---------- */
.page-hero{
  position:relative;
  margin-top:18px;
  border-radius:var(--r-lg);
  overflow:hidden;
  min-height:clamp(340px,42vw,500px);
  display:flex;
  align-items:flex-end;
  background:#0C332F url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  box-shadow:var(--sh-1);
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(12,51,47,.30) 0%,rgba(12,51,47,.68) 52%,rgba(12,51,47,.92) 100%);
}
.page-hero-inner{
  position:relative;
  z-index:2;
  width:100%;
  padding:clamp(28px,4vw,56px);
}
.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 14px;
  border-radius:var(--r-pill);
  background:rgba(247,246,241,.14);
  border:1px solid rgba(247,246,241,.28);
  color:#F7F6F1;
  font-size:12.5px;
  letter-spacing:.04em;
  margin-bottom:18px;
}
.hero-kicker i{color:var(--c-accent);font-size:11px;}
.page-hero h1{
  color:#fff;
  font-size:clamp(2.1rem,4.4vw,3.5rem);
  font-weight:800;
  line-height:1.08;
  letter-spacing:-.02em;
  max-width:24ch;
}
.page-hero .hero-lead{
  margin-top:18px;
  max-width:66ch;
  font-size:17px;
  line-height:1.8;
  color:rgba(247,246,241,.86);
}
.hero-metrics{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  margin-top:30px;
  border-top:1px solid rgba(247,246,241,.22);
  padding-top:18px;
}
.hero-metric{
  padding-right:28px;
  margin-right:28px;
  border-right:1px solid rgba(247,246,241,.2);
}
.hero-metric:last-child{border-right:0;margin-right:0;padding-right:0;}
.hero-metric b{
  display:block;
  font-family:var(--f-num);
  font-variant-numeric:tabular-nums;
  font-size:22px;
  font-weight:700;
  color:#fff;
  line-height:1.3;
}
.hero-metric span{
  display:block;
  font-size:12.5px;
  color:rgba(247,246,241,.68);
  letter-spacing:.02em;
}

/* ---------- 板块 ---------- */
.section{padding-block:var(--sp);}
.section-tight{padding-block:calc(var(--sp) * .62);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:clamp(28px,3.4vw,44px);
}
.section-head h2{
  font-size:clamp(1.5rem,2.4vw,2.1rem);
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.2;
}
.section-head .sub{
  margin-top:10px;
  font-size:14.5px;
  color:var(--c-ink-2);
  max-width:64ch;
}
.section-more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--c-brand);
  white-space:nowrap;
  padding-bottom:4px;
}
.section-more i{font-size:12px;transition:transform 200ms var(--ease);}
.section-more:hover i{transform:translateX(4px);}
.section-more:hover{text-decoration:underline;text-underline-offset:4px;}

/* ---------- 卡片矩阵 ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.feat-card{
  position:relative;
  display:flex;
  flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:28px 24px 22px;
  box-shadow:var(--sh-1);
  transition:transform 200ms var(--ease),border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.feat-card:hover{
  transform:translateY(-3px);
  border-color:var(--c-brand);
  box-shadow:var(--sh-2);
}
.feat-card:focus-within{
  border-color:var(--c-brand);
  box-shadow:0 0 0 2px rgba(20,80,75,.28);
}
.num-badge{
  position:absolute;
  top:20px;
  right:20px;
  font-family:var(--f-num);
  font-variant-numeric:tabular-nums;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--c-brand);
  background:var(--c-brand-soft);
  border-radius:var(--r-pill);
  padding:3px 11px;
}
.feat-icon{
  width:42px;
  height:42px;
  border-radius:12px;
  background:var(--c-brand-soft);
  color:var(--c-brand);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  margin-bottom:18px;
}
.feat-card h3{
  font-size:1.05rem;
  font-weight:700;
  line-height:1.5;
  padding-right:52px;
  margin-bottom:12px;
}
.feat-card p{
  font-size:14px;
  line-height:1.8;
  color:var(--c-ink-2);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.tag-row{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:18px;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:3px 11px;
  border-radius:var(--r-pill);
  background:var(--c-brand-soft);
  color:var(--c-brand);
  font-size:12.5px;
  line-height:1.7;
}
.tag.tag-accent{background:var(--c-accent-soft);color:#B8420F;}
.card-link{
  display:inline-flex;
  align-items:center;
  gap:7px;
  margin-top:20px;
  padding-top:16px;
  border-top:1px solid var(--c-line);
  font-size:13.5px;
  font-weight:600;
  color:var(--c-brand);
}
.card-link i{font-size:11px;transition:transform 200ms var(--ease);}
.card-link:hover{color:var(--c-brand-deep);}
.card-link:hover i{transform:translateX(3px);}

/* ---------- 粘性双栏 ---------- */
.split{
  display:grid;
  grid-template-columns:minmax(0,3fr) minmax(0,7fr);
  gap:clamp(28px,5vw,72px);
  align-items:start;
}
.split-aside{position:sticky;top:104px;}
.split-aside h2{
  font-size:clamp(1.4rem,2.1vw,1.9rem);
  font-weight:800;
  line-height:1.25;
  letter-spacing:-.01em;
}
.split-aside p{
  margin-top:14px;
  font-size:14.5px;
  color:var(--c-ink-2);
}
.step-list{border-top:1px solid var(--c-line);}
.step-item{
  display:flex;
  gap:20px;
  padding:24px 0;
  border-bottom:1px solid var(--c-line);
}
.step-no{
  font-family:var(--f-num);
  font-variant-numeric:tabular-nums;
  font-size:15px;
  font-weight:700;
  color:var(--c-accent);
  letter-spacing:.06em;
  padding-top:3px;
  min-width:34px;
}
.step-body h3{font-size:1.02rem;font-weight:700;margin-bottom:8px;}
.step-body p{font-size:14.5px;color:var(--c-ink-2);line-height:1.8;}

/* ---------- 图文核对区 ---------- */
.check-wrap{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,6fr);
  gap:clamp(28px,4vw,56px);
  align-items:center;
}
.check-figure{
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-1);
  background:var(--c-brand-soft);
}
.check-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform 600ms var(--ease);
}
.check-figure:hover img{transform:scale(1.04);}
.check-list{display:flex;flex-direction:column;gap:16px;margin-top:22px;}
.check-item{
  display:flex;
  gap:14px;
  padding:16px 18px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  box-shadow:var(--sh-1);
  transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.check-item:hover{border-color:var(--c-brand);box-shadow:var(--sh-2);}
.check-item i{color:var(--c-brand);font-size:14px;margin-top:6px;}
.check-item strong{display:block;font-size:14.5px;font-weight:700;margin-bottom:4px;}
.check-item span{font-size:13.5px;color:var(--c-ink-2);line-height:1.75;}

/* ---------- FAQ ---------- */
.faq-wrap{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,8fr);
  gap:clamp(28px,4vw,64px);
  align-items:start;
}
.faq-acc .accordion-item{
  background:transparent;
  border:0;
  border-top:1px solid var(--c-line);
  border-radius:0;
}
.faq-acc .accordion-item:last-child{border-bottom:1px solid var(--c-line);}
.faq-acc .accordion-item:has(.accordion-button:not(.collapsed)){
  box-shadow:inset 3px 0 0 var(--c-brand);
  padding-left:14px;
}
.faq-acc .accordion-header{margin:0;}
.faq-acc .accordion-button{
  background:transparent;
  border:0;
  border-radius:0;
  box-shadow:none;
  color:var(--c-ink);
  font-family:var(--f-sans);
  font-size:16px;
  font-weight:700;
  line-height:1.6;
  min-height:62px;
  padding:18px 52px 18px 0;
  transition:color 200ms var(--ease);
}
.faq-acc .accordion-button:hover{color:var(--c-brand);}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--c-brand);
  background:transparent;
  box-shadow:none;
}
.faq-acc .accordion-button:focus{
  box-shadow:none;
  border-color:transparent;
  outline:2px solid rgba(20,80,75,.35);
  outline-offset:-2px;
}
.faq-acc .accordion-button::after{
  content:"+";
  background-image:none;
  width:28px;
  height:28px;
  border-radius:50%;
  background-color:var(--c-brand-soft);
  color:var(--c-brand);
  font-size:17px;
  font-weight:600;
  line-height:1;
  display:flex;
  align-items:center;
  justify-content:center;
  position:absolute;
  right:0;
  top:50%;
  margin:0;
  transform:translateY(-50%);
  transition:transform 240ms var(--ease),background-color 200ms var(--ease),color 200ms var(--ease);
}
.faq-acc .accordion-button:not(.collapsed)::after{
  transform:translateY(-50%) rotate(45deg);
  background-color:var(--c-brand);
  color:#fff;
}
.faq-acc .accordion-body{
  background:var(--c-bg);
  border-radius:var(--r-sm);
  padding:18px 20px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-ink-2);
}
.faq-acc .accordion-body p + p{margin-top:10px;}

/* ---------- CTA 收尾 ---------- */
.cta-band{
  background:var(--c-brand-soft);
  border:1px solid #D3E1DB;
  border-radius:var(--r-lg);
  padding:clamp(34px,5vw,60px) clamp(24px,5vw,64px);
  text-align:center;
}
.cta-band h2{
  font-size:clamp(1.45rem,2.4vw,2rem);
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.25;
}
.cta-band p{
  margin:16px auto 0;
  max-width:60ch;
  font-size:15px;
  color:var(--c-ink-2);
}
.cta-actions{
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.btn-primary-solid{
  display:inline-flex;
  align-items:center;
  gap:9px;
  height:48px;
  padding:0 28px;
  border:1px solid var(--c-brand);
  border-radius:var(--r-pill);
  background:var(--c-brand);
  color:#fff;
  font-size:15px;
  font-weight:600;
  transition:transform 200ms var(--ease),background-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.btn-primary-solid:hover{background:var(--c-brand-deep);border-color:var(--c-brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary-solid:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:9px;
  height:48px;
  padding:0 26px;
  border:1px solid var(--c-line-strong);
  border-radius:var(--r-pill);
  background:transparent;
  color:var(--c-ink);
  font-size:15px;
  font-weight:600;
}
.btn-ghost:hover{background:var(--c-brand-soft);border-color:var(--c-brand);color:var(--c-brand);}

/* ---------- 页脚 ---------- */
.site-foot{
  background:var(--c-brand-deep);
  color:var(--c-bg);
  margin-top:var(--sp);
  padding-top:clamp(42px,5vw,68px);
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:clamp(24px,3vw,40px);
}
.foot-brand .logo{color:var(--c-bg);font-size:18px;}
.foot-brand p{
  margin-top:14px;
  max-width:34ch;
  font-size:14px;
  line-height:1.8;
  color:rgba(247,246,241,.62);
}
.foot-grid h4{
  font-size:14px;
  font-weight:700;
  color:var(--c-bg);
  margin-bottom:16px;
  letter-spacing:.02em;
}
.foot-links{
  display:flex;
  flex-direction:column;
  gap:11px;
  font-size:14px;
}
.foot-links a{color:rgba(247,246,241,.72);}
.foot-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.foot-contact{
  display:flex;
  flex-direction:column;
  gap:13px;
  font-size:13.5px;
  color:rgba(247,246,241,.72);
}
.foot-contact li{display:flex;gap:10px;align-items:flex-start;line-height:1.7;}
.foot-contact i{color:var(--c-accent);font-size:12.5px;margin-top:5px;}
.foot-bottom{
  margin-top:clamp(32px,4vw,50px);
  padding:18px 0;
  border-top:1px solid rgba(247,246,241,.14);
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  font-size:12.5px;
  color:rgba(247,246,241,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .nav-chip{padding:0 13px;font-size:13.5px;}
  .nav-cta{margin-left:16px;}
}
@media (max-width:991.98px){
  .nav-inner{
    flex-wrap:wrap;
    gap:12px;
    padding-top:12px;
    padding-bottom:12px;
    min-height:auto;
  }
  .chipbar{
    order:3;
    width:100%;
    flex:1 0 100%;
    justify-content:flex-start;
    flex-wrap:nowrap;
    overflow-x:auto;
    scroll-snap-type:x mandatory;
    -webkit-overflow-scrolling:touch;
    padding-bottom:2px;
    scrollbar-width:none;
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 16px,#000 calc(100% - 16px),transparent 100%);
    mask-image:linear-gradient(90deg,transparent 0,#000 16px,#000 calc(100% - 16px),transparent 100%);
  }
  .chipbar::-webkit-scrollbar{display:none;}
  .nav-chip{scroll-snap-align:start;}
  .nav-cta{margin-left:auto;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .split,.faq-wrap,.check-wrap{grid-template-columns:1fr;gap:32px;}
  .split-aside{position:static;}
  .foot-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767.98px){
  body{font-size:15.5px;}
  .section{padding-block:calc(var(--sp) * .6);}
  .card-grid{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .page-hero{min-height:auto;border-radius:var(--r-md);}
  .page-hero .hero-lead{font-size:15.5px;}
  .hero-metric{padding-right:20px;margin-right:20px;}
  .hero-metric b{font-size:19px;}
  .split-aside h2{font-size:1.35rem;}
  .cta-actions{flex-direction:column;}
  .btn-primary-solid,.btn-ghost{width:100%;justify-content:center;}
  .foot-bottom{flex-direction:column;}
}
@media (max-width:575.98px){
  .topbar-text{display:none;}
  .logo{font-size:17px;}
  .nav-cta{height:38px;padding:0 16px;font-size:13.5px;}
  .foot-grid{grid-template-columns:1fr;}
  .hero-metric{border-right:0;padding-right:0;margin-right:0;}
  .hero-metrics{gap:18px;}
  .hero-metric{flex:1 1 40%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    transition-duration:.01ms !important;
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
  }
  .feat-card:hover,.btn-primary-solid:hover,.check-figure:hover img{transform:none !important;}
}

/* roulang page: category4 */
:root{
  --c-ink:#14181A;
  --c-ink-2:#525A5C;
  --c-ink-3:#8A9192;
  --c-brand:#14504B;
  --c-brand-deep:#0C332F;
  --c-brand-soft:#E6EEEB;
  --c-accent:#E25E2C;
  --c-accent-soft:#FBE9E0;
  --c-bg:#F7F6F1;
  --c-surface:#FFFFFF;
  --c-line:#E3E1DA;
  --c-line-strong:#CFCCC2;
  --f-sans:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --f-num:"Inter",ui-monospace,SFMono-Regular,monospace;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sp:clamp(56px,7vw,112px);
  --sh-1:0 1px 2px rgba(20,24,26,.04), 0 10px 28px -16px rgba(20,24,26,.12);
  --sh-2:0 16px 36px -18px rgba(12,51,47,.22);
  --t:200ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--f-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.15;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
.shell{width:100%;max-width:1240px;margin:0 auto;padding:0 clamp(16px,4vw,32px)}

/* ---------- 导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--t);
}
.site-head.is-scrolled{box-shadow:0 12px 30px -24px rgba(20,24,26,.55)}
.nav-inner{display:flex;align-items:center;gap:24px;min-height:72px}
.logo{
  font-weight:800;font-size:19px;color:var(--c-brand);
  letter-spacing:-.02em;position:relative;padding-right:12px;white-space:nowrap;
}
.logo::after{
  content:"";position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--c-accent);
}
.chipbar{display:flex;align-items:center;gap:6px;flex:1;justify-content:center;min-width:0}
.nav-chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid var(--c-line);
  color:var(--c-ink-2);font-size:14px;white-space:nowrap;
  transition:background var(--t),color var(--t),border-color var(--t);
}
.nav-chip:hover{background:var(--c-brand-soft);border-color:var(--c-brand-soft);color:var(--c-brand)}
.nav-chip.active{background:var(--c-brand);border-color:var(--c-brand);color:#fff;font-weight:700}
.nav-cta{
  display:inline-flex;align-items:center;height:40px;padding:0 20px;
  border-radius:var(--r-pill);background:var(--c-brand);color:#fff;
  font-size:14.5px;font-weight:700;box-shadow:var(--sh-1);
  transition:background var(--t),transform var(--t),box-shadow var(--t);
}
.nav-cta:hover{background:var(--c-brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}

/* ---------- 面包屑 ---------- */
.crumb{padding-top:22px;font-size:13px;color:var(--c-ink-3)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li{display:inline-flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--c-line-strong)}
.crumb a{color:var(--c-ink-3);transition:color var(--t)}
.crumb a:hover{color:var(--c-brand);text-decoration:underline;text-underline-offset:3px}
.crumb .now{color:var(--c-ink-2)}

/* ---------- Hero ---------- */
.hero{padding:clamp(28px,4vw,48px) 0 clamp(40px,6vw,84px);position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0 0 auto auto;width:min(46vw,520px);height:min(46vw,520px);
  background:radial-gradient(circle at 70% 30%,rgba(20,80,75,.10),rgba(20,80,75,0) 68%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);
  gap:clamp(24px,4vw,56px);align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;color:var(--c-brand);
  background:var(--c-brand-soft);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:20px;
}
.hero h1{
  font-size:clamp(2.3rem,5vw,4rem);line-height:1.08;letter-spacing:-.02em;
  margin:0 0 22px;
}
.hero h1 .hl{color:var(--c-brand);box-shadow:inset 0 -10px 0 var(--c-brand-soft)}
.hero-lead{font-size:clamp(16px,1.4vw,17.5px);color:var(--c-ink-2);max-width:56ch}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:background var(--t),color var(--t),transform var(--t),box-shadow var(--t),border-color var(--t);
}
.btn-primary{background:var(--c-brand);color:#fff}
.btn-primary:hover{background:var(--c-brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-ghost{background:transparent;color:var(--c-brand);border-color:var(--c-line-strong)}
.btn-ghost:hover{background:var(--c-brand-soft);border-color:var(--c-brand);color:var(--c-brand)}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:#c94f21;color:#fff;transform:translateY(-1px)}
.btn-block{width:100%}
.hero-stats{
  margin-top:34px;padding-top:20px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:clamp(18px,3vw,42px);
}
.stat b{
  display:block;font-family:var(--f-num);font-variant-numeric:tabular-nums;
  font-size:22px;font-weight:700;color:var(--c-brand);letter-spacing:-.01em;
}
.stat span{font-size:12.5px;color:var(--c-ink-3)}
.hero-visual img{
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
  transition:transform 600ms cubic-bezier(.2,.7,.3,1);
}
.hero-visual:hover img{transform:scale(1.04)}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp) 0}
.section.tight{padding:calc(var(--sp) * .62) 0}
.sec-head{max-width:740px;margin-bottom:clamp(26px,4vw,48px)}
.sec-head .kicker{
  display:inline-block;font-size:12.5px;font-weight:700;color:var(--c-accent);
  letter-spacing:.08em;margin-bottom:12px;
}
.sec-head h2{font-size:clamp(1.5rem,2.4vw,2.1rem)}
.sec-head p{margin-top:14px;color:var(--c-ink-2);font-size:15px}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:0}
.timeline::before{
  content:"";position:absolute;left:31px;top:38px;bottom:38px;width:2px;
  background:linear-gradient(180deg,var(--c-brand) 0%,rgba(20,80,75,.35) 72%,rgba(20,80,75,0) 100%);
  border-radius:2px;
}
.tl-item{position:relative;display:flex;gap:clamp(18px,3vw,34px);padding:26px 0}
.tl-item+.tl-item{border-top:1px dashed var(--c-line)}
.tl-node{
  flex:0 0 64px;width:64px;height:64px;border-radius:50%;
  background:var(--c-surface);border:2px solid var(--c-brand);
  display:grid;place-items:center;position:relative;z-index:1;
  font-family:var(--f-num);font-variant-numeric:tabular-nums;
  font-size:17px;font-weight:700;color:var(--c-brand);
  box-shadow:var(--sh-1);transition:background var(--t),color var(--t),transform var(--t);
}
.tl-item:hover .tl-node{background:var(--c-brand);color:#fff;transform:translateY(-2px)}
.tl-body{padding-top:6px;min-width:0}
.tl-body h3{font-size:1.08rem;letter-spacing:-.005em}
.tl-body p{margin-top:10px;color:var(--c-ink-2);font-size:15px;max-width:72ch}
.tl-body p+p{margin-top:6px}
.tl-tag{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-size:12.5px;color:var(--c-brand);background:var(--c-brand-soft);
  border-radius:var(--r-pill);padding:4px 12px;
}

/* ---------- 图文双栏 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,56px);align-items:center}
.split-media img{border-radius:var(--r-md);box-shadow:var(--sh-1)}
.split-body h2{font-size:clamp(1.5rem,2.4vw,2.1rem)}
.split-body>p{margin-top:16px;color:var(--c-ink-2);font-size:15.5px}
.check-list{margin-top:24px;display:grid;gap:14px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--c-ink-2)}
.check-list i{color:var(--c-brand);margin-top:6px;font-size:14px}
.check-list strong{color:var(--c-ink);font-weight:700}

/* ---------- 数据条 ---------- */
.metric-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);
}
.metric-strip .cell{padding:26px 24px;border-left:1px solid var(--c-line)}
.metric-strip .cell:first-child{border-left:0}
.metric-strip b{
  display:block;font-family:var(--f-num);font-variant-numeric:tabular-nums;
  font-size:26px;font-weight:700;color:var(--c-brand);
}
.metric-strip span{display:block;margin-top:8px;font-size:13px;color:var(--c-ink-3)}

/* ---------- 卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:26px;box-shadow:var(--sh-1);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.card:hover{transform:translateY(-3px);border-color:var(--c-brand);box-shadow:var(--sh-2)}
.card .idx{
  display:inline-block;font-family:var(--f-num);font-variant-numeric:tabular-nums;
  font-size:13px;font-weight:700;color:var(--c-accent);
  border:1px solid var(--c-accent-soft);background:var(--c-accent-soft);
  border-radius:var(--r-pill);padding:2px 12px;margin-bottom:16px;
}
.card h3{font-size:1.05rem;margin-bottom:10px}
.card p{font-size:14px;color:var(--c-ink-2);line-height:1.78}
.card .arrow{display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-size:13.5px;font-weight:700;color:var(--c-brand)}
.card .arrow i{transition:transform var(--t)}
.card:hover .arrow i{transform:translateX(3px)}

/* ---------- 更新摘要 ---------- */
.update-list{border-top:1px solid var(--c-line)}
.update-list li{
  display:flex;gap:clamp(14px,3vw,28px);padding:18px 0;
  border-bottom:1px solid var(--c-line);align-items:baseline;
}
.update-list time{
  flex:0 0 96px;font-family:var(--f-num);font-variant-numeric:tabular-nums;
  font-size:13px;color:var(--c-ink-3);
}
.update-list p{font-size:15px;color:var(--c-ink-2)}

/* ---------- FAQ ---------- */
.accordion-item{background:transparent;border:0;border-top:1px solid var(--c-line)}
.accordion-item:last-child{border-bottom:1px solid var(--c-line)}
.accordion-button{
  background:transparent;color:var(--c-ink);
  font-size:1rem;font-weight:700;line-height:1.5;
  padding:22px 66px 22px 18px;min-height:64px;border-radius:0!important;
  box-shadow:none!important;
  transition:background var(--t),color var(--t);
}
.accordion-button:hover{background:var(--c-brand-soft);color:var(--c-brand)}
.accordion-button:not(.collapsed){
  background:var(--c-bg);color:var(--c-brand);
  box-shadow:inset 3px 0 0 var(--c-brand)!important;
}
.accordion-button::after{
  content:"";position:absolute;right:20px;top:50%;
  width:28px;height:28px;margin:0;transform:translateY(-50%);
  border-radius:50%;background-color:var(--c-brand-soft);
  background-image:linear-gradient(var(--c-brand),var(--c-brand)),linear-gradient(var(--c-brand),var(--c-brand));
  background-size:12px 2px,2px 12px;
  background-position:center,center;background-repeat:no-repeat;
  transition:transform 240ms cubic-bezier(.2,.7,.3,1),background-color var(--t);
}
.accordion-button:not(.collapsed)::after{
  transform:translateY(-50%) rotate(45deg);background-color:var(--c-accent-soft);
}
.accordion-body{
  background:var(--c-bg);padding:4px 66px 26px 18px;
  font-size:15px;color:var(--c-ink-2);line-height:1.85;
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--c-brand-soft);border-radius:var(--r-lg);
  padding:clamp(30px,4.6vw,60px);
  display:grid;grid-template-columns:1.05fr .95fr;
  gap:clamp(26px,4vw,56px);align-items:center;
}
.cta-band h2{font-size:clamp(1.5rem,2.4vw,2.05rem)}
.cta-band p{margin-top:16px;color:var(--c-ink-2);font-size:15.5px;max-width:46ch}
.cta-note{margin-top:22px;display:flex;flex-wrap:wrap;gap:18px}
.cta-note span{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--c-brand)}
.lead-form{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:clamp(20px,3vw,30px);box-shadow:var(--sh-1);
}
.fld{margin-bottom:16px}
.fld label{display:block;font-size:13.5px;font-weight:700;color:var(--c-ink-2);margin-bottom:8px}
.fld input{
  width:100%;height:48px;border-radius:var(--r-sm);
  border:1px solid var(--c-line);background:var(--c-bg);
  padding:0 14px;color:var(--c-ink);transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.fld input::placeholder{color:var(--c-ink-3)}
.fld input:focus{
  outline:none;background:var(--c-surface);border-color:var(--c-brand);
  box-shadow:0 0 0 3px rgba(20,80,75,.15);
}
.trust{margin-top:18px;display:grid;gap:10px}
.trust li{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--c-ink-2)}
.trust i{color:var(--c-brand);margin-top:5px}
.form-tip{margin-top:14px;font-size:13.5px;color:var(--c-brand);display:none}
.form-tip.show{display:block}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--c-brand-deep);color:var(--c-bg);margin-top:var(--sp);padding:clamp(40px,5vw,72px) 0 26px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:clamp(24px,4vw,48px)}
.site-foot .logo{color:#fff;font-size:19px;padding-right:12px}
.site-foot .logo::after{background:var(--c-accent)}
.foot-brand p{margin-top:16px;font-size:14px;color:rgba(247,246,241,.72);max-width:34ch;line-height:1.8}
.site-foot h4{font-size:14px;font-weight:700;margin-bottom:16px;color:#fff}
.foot-links li,.foot-contact li{margin-bottom:11px}
.foot-links a{font-size:14px;color:rgba(247,246,241,.72);transition:color var(--t)}
.foot-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.foot-contact li{display:flex;gap:10px;font-size:14px;color:rgba(247,246,241,.72);align-items:flex-start}
.foot-contact i{margin-top:5px;color:var(--c-accent)}
.foot-bottom{
  margin-top:clamp(28px,4vw,48px);padding-top:20px;
  border-top:1px solid rgba(247,246,241,.16);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12.5px;color:rgba(247,246,241,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .foot-grid>div:last-child{grid-column:span 3}
  .foot-contact{display:flex;flex-wrap:wrap;gap:24px}
  .foot-contact li{margin-bottom:0}
}
@media (max-width:991.98px){
  .nav-inner{flex-wrap:wrap;row-gap:10px;padding:12px 0}
  .logo{order:1}
  .nav-cta{order:2;margin-left:auto}
  .chipbar{
    order:3;flex-basis:100%;justify-content:flex-start;
    overflow-x:auto;scroll-snap-type:x mandatory;
    padding-bottom:4px;scrollbar-width:none;
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
    mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
  }
  .chipbar::-webkit-scrollbar{display:none}
  .nav-chip{scroll-snap-align:start}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero h1{max-width:none}
  .split{grid-template-columns:1fr;gap:30px}
  .split-media{order:-1}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .metric-strip{grid-template-columns:repeat(2,1fr)}
  .metric-strip .cell:nth-child(3){border-left:0;border-top:1px solid var(--c-line)}
  .metric-strip .cell:nth-child(4){border-top:1px solid var(--c-line)}
  .cta-band{grid-template-columns:1fr;gap:30px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .foot-grid>div:last-child{grid-column:span 2}
  .foot-contact{display:block}
}
@media (max-width:767.98px){
  body{font-size:15.5px}
  :root{--sp:clamp(44px,9vw,64px)}
  .section{padding:var(--sp) 0}
  .section.tight{padding:calc(var(--sp) * .7) 0}
  .card-grid{grid-template-columns:1fr}
  .timeline::before{left:23px}
  .tl-item{gap:18px;padding:22px 0}
  .tl-node{flex:0 0 48px;width:48px;height:48px;font-size:14.5px}
  .tl-body{padding-top:2px}
  .tl-body p{font-size:14.5px}
  .accordion-button{padding:18px 58px 18px 14px;font-size:15.5px}
  .accordion-body{padding:4px 20px 22px 14px}
  .update-list li{flex-direction:column;gap:6px}
  .update-list time{flex:none}
  .foot-grid{grid-template-columns:1fr}
  .foot-grid>div:last-child{grid-column:span 1}
  .foot-bottom{flex-direction:column;gap:8px}
  .hero-actions .btn{width:100%}
}
@media (max-width:575.98px){
  .metric-strip{grid-template-columns:1fr}
  .metric-strip .cell{border-left:0;border-top:1px solid var(--c-line)}
  .metric-strip .cell:first-child{border-top:0}
  .hero-stats{gap:20px 32px}
  .h1{font-size:2.1rem}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    transition-duration:.01ms!important;
    animation-duration:.01ms!important;
    scroll-behavior:auto!important;
  }
  .card:hover,.hero-visual:hover img,.nav-cta:hover,.tl-item:hover .tl-node{transform:none!important}
}

/* roulang page: category5 */
:root{
  --c-ink:#14181A;
  --c-ink-2:#525A5C;
  --c-ink-3:#8A9192;
  --c-brand:#14504B;
  --c-brand-deep:#0C332F;
  --c-brand-soft:#E6EEEB;
  --c-accent:#E25E2C;
  --c-accent-soft:#FBE9E0;
  --c-bg:#F7F6F1;
  --c-surface:#FFFFFF;
  --c-line:#E3E1DA;
  --c-line-strong:#CFCCC2;
  --f-sans:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --f-num:"Inter",ui-monospace,SFMono-Regular,monospace;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,24,26,.04),0 10px 28px -16px rgba(20,24,26,.12);
  --sh-2:0 16px 36px -18px rgba(12,51,47,.22);
  --sp:clamp(56px,7vw,112px);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--f-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-brand);text-decoration:none;transition:color 200ms var(--ease)}
a:hover{color:var(--c-brand-deep)}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.2;letter-spacing:-.01em;color:var(--c-ink)}
h1{font-size:clamp(2.3rem,5vw,4rem);line-height:1.08;letter-spacing:-.02em}
h2{font-size:clamp(1.5rem,2.4vw,2.1rem)}
h3{font-size:1.1rem;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
.shell{width:100%;max-width:1240px;margin:0 auto;padding:0 clamp(16px,4vw,32px)}
.sec{padding:var(--sp) 0}
.sec-tight{padding:calc(var(--sp) * .68) 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.08em;
  color:var(--c-brand);background:var(--c-brand-soft);
  border-radius:var(--r-pill);padding:6px 14px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent)}
.sec-head{max-width:760px;margin-bottom:clamp(28px,3.4vw,48px)}
.sec-head p{margin-top:14px;color:var(--c-ink-2);font-size:15.5px}
.num{font-family:var(--f-num);font-variant-numeric:tabular-nums}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-brand-deep);color:var(--c-bg);font-size:13.5px}
.topbar .shell{display:flex;align-items:center;gap:16px;height:42px}
.topbar .tag{
  display:inline-flex;align-items:center;gap:6px;flex:0 0 auto;
  background:rgba(247,246,241,.12);border-radius:var(--r-pill);
  padding:3px 12px;font-size:12.5px;font-weight:600;
}
.topbar .date{font-family:var(--f-num);font-variant-numeric:tabular-nums;color:#fff;font-weight:600;letter-spacing:.02em}
.topbar .txt{color:rgba(247,246,241,.78);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar .go{margin-left:auto;color:var(--c-bg);font-weight:600;white-space:nowrap}
.topbar .go:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.topbar .go i{transition:transform 200ms var(--ease)}
.topbar .go:hover i{transform:translateX(3px)}

/* ---------- 导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid transparent;
  transition:box-shadow 200ms var(--ease),border-color 200ms var(--ease);
}
.site-head.is-stuck{border-bottom-color:var(--c-line);box-shadow:0 8px 24px -20px rgba(12,51,47,.45)}
.nav-inner{display:flex;align-items:center;gap:clamp(16px,2.4vw,32px);padding-top:14px;padding-bottom:14px}
.logo{
  position:relative;flex:0 0 auto;
  font-weight:800;font-size:19px;letter-spacing:-.01em;
  color:var(--c-brand);padding-right:12px;
}
.logo::after{content:"";position:absolute;right:0;top:50%;transform:translateY(-50%);width:4px;height:4px;border-radius:50%;background:var(--c-accent)}
.logo:hover{color:var(--c-brand-deep)}
.chipbar{
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;scroll-snap-type:x mandatory;
  scrollbar-width:none;-ms-overflow-style:none;
  padding:2px 0;
}
.chipbar::-webkit-scrollbar{display:none}
.nav-chip{
  flex:0 0 auto;scroll-snap-align:center;
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border:1px solid var(--c-line);border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:var(--c-ink-2);
  background:transparent;white-space:nowrap;
  transition:background 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease);
}
.nav-chip:hover{background:var(--c-brand-soft);border-color:var(--c-brand-soft);color:var(--c-brand)}
.nav-chip.active{background:var(--c-brand);border-color:var(--c-brand);color:#fff}
.nav-cta{
  flex:0 0 auto;margin-left:auto;
  display:inline-flex;align-items:center;height:40px;padding:0 22px;
  background:var(--c-brand);color:#fff;border-radius:var(--r-pill);
  font-size:14px;font-weight:700;
  transition:background 200ms var(--ease),transform 200ms var(--ease);
}
.nav-cta:hover{background:var(--c-brand-deep);color:#fff;transform:translateY(-1px)}

/* ---------- 面包屑 ---------- */
.crumb{padding:22px 0 0;font-size:13px;color:var(--c-ink-3)}
.crumb a{color:var(--c-ink-3)}
.crumb a:hover{color:var(--c-brand);text-decoration:underline;text-underline-offset:3px}
.crumb span.sep{margin:0 8px;color:var(--c-line-strong)}
.crumb span.now{color:var(--c-ink-2);font-weight:600}

/* ---------- Hero ---------- */
.page-hero{padding:clamp(30px,4vw,58px) 0 var(--sp)}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:clamp(24px,4vw,56px);align-items:center}
.hero-copy h1{margin:18px 0 0}
.hero-copy .lead{margin-top:20px;font-size:17.5px;line-height:1.8;color:var(--c-ink-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.btn-main,.btn-ghost,.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:background 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease),transform 200ms var(--ease);
}
.btn-main{background:var(--c-brand);border-color:var(--c-brand);color:#fff}
.btn-main:hover{background:var(--c-brand-deep);border-color:var(--c-brand-deep);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--c-line-strong);color:var(--c-ink)}
.btn-ghost:hover{background:var(--c-brand-soft);border-color:var(--c-brand-soft);color:var(--c-brand);transform:translateY(-1px)}
.btn-accent{background:var(--c-accent);border-color:var(--c-accent);color:#fff}
.btn-accent:hover{background:#c74f22;border-color:#c74f22;color:#fff;transform:translateY(-1px)}
.hero-media{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);
  box-shadow:var(--sh-1);background:var(--c-brand-soft);
}
.hero-media img{width:100%;height:clamp(260px,34vw,400px);object-fit:cover;transition:transform 600ms var(--ease)}
.hero-media:hover img{transform:scale(1.04)}
.hero-stats{display:flex;flex-wrap:wrap;margin-top:36px;border-top:1px solid var(--c-line)}
.hero-stats li{padding:18px 30px 0 0;margin-right:30px;border-right:1px solid var(--c-line)}
.hero-stats li:last-child{border-right:0;margin-right:0;padding-right:0}
.hero-stats .n{display:block;font-family:var(--f-num);font-variant-numeric:tabular-nums;font-size:22px;font-weight:800;color:var(--c-brand);line-height:1.2}
.hero-stats .t{display:block;font-size:12.5px;color:var(--c-ink-3);margin-top:2px}

/* ---------- 分组问答 ---------- */
.faq-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:clamp(20px,3vw,38px);box-shadow:var(--sh-1);
}
.faq-tabs{display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;padding-bottom:8px;margin-bottom:26px}
.faq-tabs::-webkit-scrollbar{display:none}
.faq-tab{
  flex:0 0 auto;scroll-snap-align:center;
  height:40px;padding:0 20px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:var(--c-surface);
  color:var(--c-ink-2);font-size:14px;font-weight:700;cursor:pointer;white-space:nowrap;
  transition:background 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease);
}
.faq-tab:hover{background:var(--c-brand-soft);border-color:var(--c-brand-soft);color:var(--c-brand)}
.faq-tab.active{background:var(--c-brand);border-color:var(--c-brand);color:#fff}
.faq-search{position:relative;max-width:380px;margin-bottom:22px}
.faq-search input{
  width:100%;height:48px;border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:var(--c-bg);padding:0 46px 0 16px;color:var(--c-ink);
  transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease),background 200ms var(--ease);
}
.faq-search input::placeholder{color:var(--c-ink-3)}
.faq-search input:focus{outline:none;background:var(--c-surface);border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(20,80,75,.15)}
.faq-search i{position:absolute;right:16px;top:50%;transform:translateY(-50%);color:var(--c-ink-3);font-size:14px}
.faq-panel{display:none}
.faq-panel.is-on{display:block;animation:fadeIn 260ms var(--ease)}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.faq-acc .accordion-item{border:0;border-top:1px solid var(--c-line);background:transparent;border-radius:0}
.faq-acc .accordion-item:last-child{border-bottom:1px solid var(--c-line)}
.faq-acc .accordion-button{
  background:transparent;color:var(--c-ink);
  font-size:16.5px;font-weight:700;line-height:1.6;
  padding:20px 12px 20px 0;border-radius:0;box-shadow:none;gap:18px;
  border-left:3px solid transparent;
  transition:padding-left 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease);
}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-brand);padding-left:16px;border-left-color:var(--c-brand);background:transparent;box-shadow:none}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:var(--c-brand)}
.faq-acc .accordion-button::after{
  width:28px;height:28px;flex:0 0 28px;border-radius:50%;
  background-color:var(--c-brand-soft);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2314504B' stroke-width='2.2' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:center;background-size:13px;
  transform:none;
  transition:transform 200ms var(--ease);
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.faq-acc .accordion-body{
  background:var(--c-bg);border-radius:var(--r-sm);
  padding:16px 20px;margin:0 0 20px;
  font-size:15px;line-height:1.85;color:var(--c-ink-2);
}
.faq-acc .accordion-body strong{color:var(--c-ink)}
.faq-empty{display:none;padding:28px 0 8px;color:var(--c-ink-3);font-size:14.5px;text-align:center}
.faq-empty.is-on{display:block}

/* ---------- 编号纵列 ---------- */
.num-list{display:flex;flex-direction:column}
.num-item{
  display:grid;grid-template-columns:96px 1fr;gap:clamp(16px,3vw,32px);
  padding:30px 0;border-top:1px solid var(--c-line);
  transition:transform 200ms var(--ease);
}
.num-item:last-child{border-bottom:1px solid var(--c-line)}
.num-item:nth-child(even){padding-left:clamp(0px,3vw,40px)}
.num-item:hover{transform:translateX(4px)}
.num-item .idx{
  font-family:var(--f-num);font-variant-numeric:tabular-nums;
  font-size:clamp(1.9rem,3.2vw,2.6rem);font-weight:800;color:var(--c-accent);line-height:1;
}
.num-item h3{margin-bottom:8px}
.num-item p{color:var(--c-ink-2);font-size:15px}

/* ---------- 场景卡片 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,2.2vw,26px)}
.scene-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
}
.scene-card:hover{transform:translateY(-3px);border-color:var(--c-brand);box-shadow:var(--sh-2)}
.scene-card .thumb{position:relative;overflow:hidden;background:var(--c-brand-soft)}
.scene-card .thumb img{width:100%;height:190px;object-fit:cover;transition:transform 600ms var(--ease)}
.scene-card:hover .thumb img{transform:scale(1.04)}
.scene-card .body{padding:22px 24px 26px}
.scene-card .body h3{margin-bottom:10px}
.scene-card .body p{color:var(--c-ink-2);font-size:14.5px}
.scene-card .body .more{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  font-size:13.5px;font-weight:700;color:var(--c-brand);
}
.scene-card .body .more i{transition:transform 200ms var(--ease)}
.scene-card:hover .body .more i{transform:translateX(3px)}

/* ---------- 表单 ---------- */
.feed-band{
  background:var(--c-brand-deep);color:var(--c-bg);
  border-radius:var(--r-lg);padding:clamp(28px,5vw,58px);
  display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,56px);
}
.feed-band h2{color:#fff}
.feed-band .desc{margin-top:16px;color:rgba(247,246,241,.78);font-size:15px;line-height:1.85}
.feed-points{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.feed-points li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:rgba(247,246,241,.86)}
.feed-points i{color:var(--c-accent);margin-top:5px;font-size:13px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:13.5px;font-weight:600;color:rgba(247,246,241,.8)}
.field input,.field textarea,.field select{
  width:100%;height:48px;border-radius:var(--r-sm);
  border:1px solid rgba(247,246,241,.22);
  background:rgba(247,246,241,.06);color:#fff;
  padding:0 14px;font-size:15px;
  transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease),background 200ms var(--ease);
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:rgba(247,246,241,.42)}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;background:rgba(247,246,241,.1);
  border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(226,94,44,.24);
}
.field select option{color:var(--c-ink)}
.form-foot{grid-column:1 / -1;display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:6px}
.form-foot .hint{font-size:12.5px;color:rgba(247,246,241,.6)}
.btn-band{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 30px;border-radius:var(--r-pill);border:1px solid var(--c-accent);
  background:var(--c-accent);color:#fff;font-size:15px;font-weight:700;cursor:pointer;
  transition:background 200ms var(--ease),transform 200ms var(--ease);
}
.btn-band:hover{background:#c74f22;border-color:#c74f22;transform:translateY(-1px)}

/* ---------- 结尾 CTA ---------- */
.end-cta{
  background:var(--c-brand-soft);border-radius:var(--r-lg);
  padding:clamp(28px,4.6vw,52px);
  display:flex;align-items:center;justify-content:space-between;gap:clamp(20px,3vw,40px);flex-wrap:wrap;
}
.end-cta h2{max-width:640px}
.end-cta p{margin-top:12px;color:var(--c-ink-2);font-size:15px;max-width:620px}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--c-brand-deep);color:var(--c-bg);padding:clamp(44px,5vw,72px) 0 0;margin-top:var(--sp)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:clamp(24px,3vw,48px);padding-bottom:44px}
.site-foot .logo{color:#fff;font-size:19px;padding-right:12px}
.site-foot .logo:hover{color:#fff}
.site-foot .logo::after{background:var(--c-accent)}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(247,246,241,.7);max-width:320px}
.site-foot h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.02em}
.foot-links{display:flex;flex-direction:column;gap:11px}
.foot-links a{font-size:14px;color:rgba(247,246,241,.72)}
.foot-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.foot-contact{display:flex;flex-direction:column;gap:12px}
.foot-contact li{display:flex;gap:10px;font-size:14px;color:rgba(247,246,241,.72);line-height:1.7}
.foot-contact i{color:var(--c-accent);margin-top:5px;font-size:13px;flex:0 0 auto}
.foot-bottom{
  border-top:1px solid rgba(247,246,241,.14);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;font-size:12.5px;color:rgba(247,246,241,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .hero-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:991.98px){
  .nav-inner{flex-wrap:wrap;row-gap:10px}
  .logo{order:1}
  .nav-cta{order:2;margin-left:auto}
  .chipbar{
    order:3;width:100%;
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 16px,#000 calc(100% - 16px),transparent 100%);
    mask-image:linear-gradient(90deg,transparent 0,#000 16px,#000 calc(100% - 16px),transparent 100%);
  }
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media{order:-1}
  .hero-media img{height:clamp(210px,46vw,320px)}
  .scene-grid{grid-template-columns:1fr 1fr}
  .feed-band{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767.98px){
  :root{--sp:clamp(34px,8vw,66px)}
  .topbar .txt{display:none}
  .hero-stats{margin-top:26px}
  .hero-stats li{padding:14px 20px 0 0;margin-right:20px}
  .hero-stats .n{font-size:19px}
  .num-item{grid-template-columns:1fr;gap:10px;padding:24px 0}
  .num-item:nth-child(even){padding-left:0}
  .scene-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .faq-acc .accordion-button{font-size:15.5px;padding:18px 8px 18px 0}
  .end-cta{flex-direction:column;align-items:flex-start}
}
@media (max-width:575.98px){
  .topbar .shell{gap:10px}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%}
  .hero-stats li:nth-child(2){border-right:0}
  .foot-grid{grid-template-columns:1fr}
  .footer,.site-foot{padding-top:36px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .scene-card:hover,.num-item:hover,.btn-main:hover,.btn-ghost:hover,.btn-accent:hover,.btn-band:hover,.nav-cta:hover{transform:none}
  .scene-card:hover .thumb img,.hero-media:hover img{transform:none}
}