/* roulang page: index */
:root{
  --ink:#17453D;
  --ink-dark:#0F332D;
  --ink-hover:#1F5A4E;
  --amber:#E07A2F;
  --amber-hover:#C9661F;
  --paper:#F6F3ED;
  --sink:#EFEAE1;
  --card:#FFFFFF;
  --text:#1A1D1C;
  --text-2:#4A514E;
  --text-3:#7C8480;
  --line:#E2DCD1;
  --ok:#2F7D5B;
  --warn:#C9861F;
  --err:#B33A2B;
  --r-card:16px;
  --r-lg:20px;
  --r-pill:999px;
  --r-input:12px;
  --sh:0 1px 2px rgba(26,29,28,.04),0 8px 24px rgba(26,29,28,.06);
  --sh-hover:0 14px 32px rgba(26,29,28,.10);
  --font:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;

  --bs-primary:#17453D;
  --bs-primary-rgb:23,69,61;
  --bs-body-font-family:var(--font);
  --bs-body-color:#1A1D1C;
  --bs-body-bg:#F6F3ED;
  --bs-border-color:#E2DCD1;
  --bs-border-radius:16px;
  --bs-link-color:#E07A2F;
  --bs-link-hover-color:#C9661F;
  --bs-font-sans-serif:var(--font);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--amber);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--amber-hover)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:rgba(224,122,47,.22);color:var(--ink-dark)}

.container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto}
@media (min-width:1400px){.container{max-width:1260px}}
@media (max-width:575.98px){.container{padding-left:20px;padding-right:20px}}

section{padding:clamp(56px,7vw,104px) 0}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(246,243,237,.92);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.brand-badge{
  width:38px;height:38px;border-radius:10px;background:var(--ink);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;letter-spacing:.5px;flex:0 0 auto;
}
.brand-name{display:flex;flex-direction:column;line-height:1.2}
.brand-name strong{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:0}
.brand-name small{font-size:11.5px;color:var(--text-3);font-weight:400;margin-top:2px;letter-spacing:0}
.nav-chips{display:flex;align-items:center;gap:8px;flex:1 1 auto;justify-content:center;margin:0;padding:0}
.chip{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  min-height:40px;padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:transparent;color:var(--text-2);
  font-size:14px;font-weight:500;text-decoration:none;white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.chip:hover{background:var(--sink);color:var(--ink);border-color:var(--line);transform:translateY(-1px)}
.chip.is-active{background:var(--ink);color:#fff;border-color:var(--ink)}
.chip.is-active:hover{background:var(--ink-hover);color:#fff;transform:none}
.chip:focus-visible{outline:2px solid var(--ink);outline-offset:2px}

/* ============ 按钮 ============ */
.btn{
  --bs-btn-border-radius:var(--r-pill);
  border-radius:var(--r-pill);
  font-family:inherit;font-size:15px;font-weight:600;
  height:48px;padding:12px 28px;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;text-decoration:none;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-amber{background:var(--amber);border-color:var(--amber);color:#fff;box-shadow:0 6px 16px rgba(224,122,47,.20)}
.btn-amber:hover,.btn-amber:active{background:var(--amber-hover);border-color:var(--amber-hover);color:#fff;transform:translateY(-1px)}
.btn-amber:active{transform:translateY(0)}
.btn-outline-ink{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-outline-ink:hover,.btn-outline-ink:active{background:var(--ink);border-color:var(--ink);color:#fff;transform:translateY(-1px)}
.btn-outline-light-ink{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-outline-light-ink:hover{background:#fff;border-color:#fff;color:var(--ink)}
.btn:focus-visible{outline:2px solid var(--ink);outline-offset:2px;box-shadow:none}
.header-cta{height:42px;padding:10px 20px;font-size:14px;flex:0 0 auto}

@media (max-width:991.98px){
  .header-inner{flex-wrap:wrap;min-height:auto;padding:12px 0;gap:12px}
  .header-cta{margin-left:auto}
  .nav-chips{
    order:3;width:100%;justify-content:flex-start;overflow-x:auto;
    padding:2px 0 4px;scroll-snap-type:x mandatory;
    scrollbar-width:none;-ms-overflow-style:none;
  }
  .nav-chips::-webkit-scrollbar{display:none}
  .chip{flex:0 0 auto;scroll-snap-align:start}
}

/* ============ 通用排版 ============ */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--ink);
  background:rgba(23,69,61,.07);
  padding:6px 14px;border-radius:var(--r-pill);
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--amber)}
h1{font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:700;letter-spacing:0;color:var(--text)}
h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700;letter-spacing:0;color:var(--text)}
h3{font-size:19px;line-height:1.4;font-weight:600}
.lead-text{font-size:16.5px;line-height:1.8;color:var(--text-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-head .sh-left{max-width:640px}
.section-head p{font-size:15.5px;color:var(--text-2);margin-top:10px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--amber);
  text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;
  white-space:nowrap;
}
.text-link:hover{color:var(--amber-hover)}
.rule-short{width:22px;height:2px;background:var(--ink);border-radius:2px;margin-bottom:16px}

/* ============ Hero ============ */
.hero{padding-top:clamp(40px,5vw,72px);padding-bottom:clamp(48px,6vw,88px);position:relative;overflow:hidden}
.hero::after{
  content:"";position:absolute;right:-160px;top:-120px;width:420px;height:420px;
  border-radius:50%;background:rgba(23,69,61,.05);pointer-events:none;
}
.hero .row{position:relative;z-index:1}
.hero h1{margin-bottom:16px}
.hero-sub{font-size:17px;line-height:1.75;color:var(--text-2);max-width:30em;margin-bottom:14px}
.hero-note{font-size:14.5px;line-height:1.75;color:var(--text-3);max-width:32em;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px}
.trust-row{display:flex;align-items:stretch;gap:0;flex-wrap:wrap}
.trust-item{padding:0 22px;position:relative}
.trust-item:first-child{padding-left:0}
.trust-item+.trust-item::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:1px;background:var(--line)}
.trust-item strong{display:block;font-size:26px;line-height:1.15;font-weight:700;color:var(--ink);letter-spacing:-.2px}
.trust-item span{display:block;font-size:13px;color:var(--text-3);margin-top:4px}
.hero-figure{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh);
  border:1px solid var(--line);background:var(--sink);
  aspect-ratio:16/12;
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
@media (max-width:575.98px){
  .trust-item{padding:0 14px}
  .trust-item strong{font-size:22px}
  .hero-actions .btn{width:100%}
}

/* ============ 卖点 ============ */
#value{background:var(--paper)}
.value-left h2{margin-bottom:14px}
.value-left p{font-size:15.5px;color:var(--text-2);margin-bottom:22px}
.value-list{border-top:1px solid var(--line)}
.value-item{
  display:grid;grid-template-columns:64px 1fr;gap:18px;
  padding:22px 0;border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.value-item:hover{background:rgba(255,255,255,.6)}
.value-num{
  font-size:14px;font-weight:700;color:var(--ink);
  background:#fff;border:1px solid var(--line);border-radius:8px;
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
}
.value-item h3{font-size:17.5px;margin-bottom:6px;color:var(--text)}
.value-item p{font-size:14.5px;line-height:1.75;color:var(--text-2)}
.value-item:nth-child(even){padding-left:22px}
@media (max-width:991.98px){.value-item:nth-child(even){padding-left:0}}

/* ============ 演示 ============ */
#demo{background:var(--sink)}
.demo-tabs{display:flex;flex-direction:column;gap:10px}
.demo-tab{
  text-align:left;background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:16px 18px;font-size:15px;font-weight:600;color:var(--text-2);
  cursor:pointer;display:flex;align-items:center;gap:10px;
  transition:all .2s ease;min-height:44px;
}
.demo-tab .dot{width:8px;height:8px;border-radius:50%;background:var(--line);flex:0 0 auto;transition:background .2s ease}
.demo-tab:hover{border-color:#d2cabc;transform:translateX(2px)}
.demo-tab.is-active{background:var(--ink);border-color:var(--ink);color:#fff;box-shadow:0 10px 24px rgba(15,51,45,.18)}
.demo-tab.is-active .dot{background:var(--amber)}
.demo-tab:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
.phone-mock{
  width:270px;max-width:100%;aspect-ratio:9/18.5;margin:0 auto;
  background:#1A1D1C;border-radius:38px;padding:11px;
  box-shadow:0 26px 60px rgba(26,29,28,.22);position:relative;
}
.phone-mock::before{
  content:"";position:absolute;top:18px;left:50%;transform:translateX(-50%);
  width:78px;height:18px;border-radius:0 0 12px 12px;background:#1A1D1C;z-index:2;
}
.phone-screen{width:100%;height:100%;border-radius:28px;overflow:hidden;background:#fff}
.phone-screen img{width:100%;height:100%;object-fit:cover}
.demo-side h3{margin-bottom:12px;font-size:19px}
.demo-note{font-size:15px;line-height:1.8;color:var(--text-2);min-height:88px}
.demo-meta{
  margin-top:18px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:13px;line-height:1.7;color:var(--text-3);
}
@media (max-width:991.98px){
  .demo-tabs{flex-direction:row;overflow-x:auto;padding-bottom:6px;scroll-snap-type:x mandatory;scrollbar-width:none}
  .demo-tabs::-webkit-scrollbar{display:none}
  .demo-tab{flex:0 0 auto;scroll-snap-align:start;font-size:14px;padding:12px 16px}
  .demo-note{min-height:auto}
}

/* ============ 证据 ============ */
#proof{background:var(--paper)}
.logo-wall{
  display:flex;flex-wrap:wrap;gap:14px 12px;margin-bottom:44px;
  padding:22px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.logo-wall span{
  font-size:14px;color:var(--text-3);filter:grayscale(1);
  background:var(--sink);border-radius:8px;padding:8px 16px;
  opacity:.85;transition:opacity .2s ease,color .2s ease;
}
.logo-wall span:hover{opacity:1;color:var(--text-2)}
.quote-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;height:100%;box-shadow:var(--sh);
  display:flex;flex-direction:column;gap:16px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.quote-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.quote-card blockquote{font-size:15.5px;line-height:1.85;color:var(--text-2);margin:0;position:relative;padding-left:16px;border-left:3px solid var(--amber)}
.quote-from{font-size:13.5px;color:var(--text-3);margin-top:auto}
.metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:44px}
.metric{padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card)}
.metric strong{display:block;font-size:34px;line-height:1.1;font-weight:700;color:var(--ink)}
.metric span{display:block;font-size:13.5px;color:var(--text-3);margin-top:8px}
@media (max-width:767.98px){.metric-row{grid-template-columns:1fr;gap:14px}}

/* ============ 价格 ============ */
#pricing{background:var(--sink)}
.plan{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 26px;height:100%;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.plan:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.plan.is-featured{background:var(--ink);border-color:var(--ink);box-shadow:0 20px 44px rgba(15,51,45,.24)}
.plan-badge{
  position:absolute;top:-12px;right:20px;
  background:var(--amber);color:#fff;font-size:12.5px;font-weight:600;
  padding:5px 14px;border-radius:var(--r-pill);
  box-shadow:0 6px 16px rgba(224,122,47,.28);
}
.plan-name{font-size:17px;font-weight:600;color:var(--text);margin-bottom:6px}
.plan-price{font-size:34px;font-weight:700;line-height:1.15;color:var(--ink);letter-spacing:-.5px}
.plan-price small{font-size:14px;font-weight:500;color:var(--text-3);margin-left:6px;letter-spacing:0}
.plan-desc{font-size:13.5px;color:var(--text-3);margin:10px 0 22px;line-height:1.7}
.plan-list{margin-bottom:24px}
.plan-row{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:11px 0;border-bottom:1px solid var(--line);
  font-size:14px;
}
.plan-row:last-child{border-bottom:none}
.plan-row span:first-child{color:var(--text-3)}
.plan-row span:last-child{color:var(--text);font-weight:600;text-align:right}
.plan .btn{width:100%;margin-top:auto}
.plan.is-featured .plan-name{color:#fff}
.plan.is-featured .plan-price{color:#fff}
.plan.is-featured .plan-price small{color:rgba(255,255,255,.66)}
.plan.is-featured .plan-desc{color:rgba(255,255,255,.7)}
.plan.is-featured .plan-row{border-bottom-color:rgba(255,255,255,.14)}
.plan.is-featured .plan-row span:first-child{color:rgba(255,255,255,.68)}
.plan.is-featured .plan-row span:last-child{color:#fff}
.plan.is-featured .btn-amber{box-shadow:none}

/* ============ 资讯 ============ */
#news{background:var(--paper)}
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;text-decoration:none;color:inherit;
  box-shadow:var(--sh);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:#d4ccbe;color:inherit}
.news-card h3{
  font-size:17.5px;font-weight:600;line-height:1.45;color:var(--text);
  margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card p{
  font-size:14px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:18px;
}
.news-meta{
  margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.news-date{font-size:13px;color:var(--text-3)}
.news-chip{
  font-size:13px;color:var(--ink);background:rgba(23,69,61,.08);
  padding:4px 12px;border-radius:var(--r-pill);white-space:nowrap;
  max-width:56%;overflow:hidden;text-overflow:ellipsis;
}
.news-empty{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);
  padding:44px 24px;text-align:center;
}
.news-empty p{font-size:15px;color:var(--text-3);margin-bottom:18px}

/* ============ FAQ ============ */
#faq{background:var(--sink)}
.accordion{--bs-accordion-border-color:var(--line);--bs-accordion-border-radius:14px;--bs-accordion-inner-border-radius:14px;--bs-accordion-btn-focus-box-shadow:none;--bs-accordion-active-color:var(--ink);--bs-accordion-active-bg:#fff;--bs-accordion-btn-bg:#fff;--bs-accordion-color:var(--text-2);max-width:860px}
.accordion-item{
  background:#fff;border:1px solid var(--line)!important;border-radius:14px!important;
  margin-bottom:12px;overflow:hidden;box-shadow:0 1px 2px rgba(26,29,28,.03);
}
.accordion-button{
  font-size:16px;font-weight:600;color:var(--text);
  padding:18px 20px;background:#fff;border-radius:14px!important;
  box-shadow:none!important;line-height:1.5;
}
.accordion-button:not(.collapsed){color:var(--ink);background:#fff}
.accordion-button::after{
  content:"+";background-image:none!important;transform:none!important;
  font-size:22px;font-weight:400;line-height:1;color:var(--ink);
  width:24px;height:24px;margin-left:auto;
  display:flex;align-items:center;justify-content:center;
  transition:color .2s ease;
}
.accordion-button:not(.collapsed)::after{content:"−";color:var(--amber)}
.accordion-button:focus-visible{outline:2px solid var(--ink);outline-offset:-2px}
.accordion-body{
  font-size:15px;line-height:1.8;color:var(--text-2);
  padding:0 20px 20px;padding-top:12px;
}

/* ============ 收尾 CTA ============ */
#cta{
  background:var(--ink);
  padding:clamp(64px,8vw,96px) 0;
  position:relative;overflow:hidden;
}
#cta::after{
  content:"";position:absolute;right:-120px;bottom:-140px;width:360px;height:360px;
  border-radius:50%;background:rgba(255,255,255,.05);
}
.cta-inner{position:relative;z-index:1;text-align:center;max-width:760px;margin:0 auto}
.cta-inner h2{color:#fff;margin-bottom:14px}
.cta-inner p{color:rgba(255,255,255,.74);font-size:15.5px;margin-bottom:28px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.cta-actions .text-link{color:#fff;text-decoration-color:rgba(255,255,255,.5)}
.cta-actions .text-link:hover{color:var(--amber)}
@media (max-width:575.98px){.cta-actions .btn{width:100%}}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-dark);color:rgba(255,255,255,.72);padding-top:clamp(56px,6vw,80px)}
.footer-brand{font-size:18px;font-weight:700;color:#fff;margin-bottom:12px;letter-spacing:0}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:22em}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-links li{margin-bottom:9px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.66);text-decoration:none;transition:color .2s ease}
.footer-links a:hover{color:var(--amber)}
.footer-links span{font-size:14px;color:rgba(255,255,255,.66)}
.footer-bottom{
  margin-top:44px;padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.48);
}
.footer-bottom a{color:rgba(255,255,255,.48)}
.footer-bottom a:hover{color:var(--amber)}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:90;
  opacity:0;transform:translateY(10px);pointer-events:none;
  transition:opacity .22s ease,transform .22s ease;
}
.float-cta.is-show{opacity:1;transform:none;pointer-events:auto}
.float-cta .btn{height:54px;padding:0 26px;box-shadow:0 12px 28px rgba(224,122,47,.32)}
.float-cta .mobile-bar{display:none}
@media (max-width:767.98px){
  body{padding-bottom:78px}
  .float-cta{
    left:0;right:0;bottom:0;opacity:1;transform:none;pointer-events:auto;
    background:#fff;border-top:1px solid var(--line);
    box-shadow:0 -8px 24px rgba(26,29,28,.10);
    padding:9px 14px calc(9px + env(safe-area-inset-bottom));
  }
  .float-cta .desktop-pill{display:none}
  .float-cta .mobile-bar{display:flex;align-items:center;gap:12px}
  .float-cta .mobile-bar .btn{flex:1 1 auto;height:48px;font-size:15px}
  .float-cta .mobile-bar .text-link{font-size:14px;white-space:nowrap}
}

/* 可访问性 */
:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --pine:#17453D;
  --pine-dark:#0F332D;
  --pine-hover:#1F5A4E;
  --amber:#E07A2F;
  --amber-hover:#C9661F;
  --paper:#F6F3ED;
  --paper-deep:#EFEAE1;
  --card:#FFFFFF;
  --ink:#1A1D1C;
  --ink-2:#4A514E;
  --ink-3:#7C8480;
  --line:#E2DCD1;
  --ok:#2F7D5B;
  --warn:#C9861F;
  --err:#B33A2B;
  --r-card:16px;
  --r-img:20px;
  --r-btn:999px;
  --r-input:12px;
  --shadow:0 1px 2px rgba(26,29,28,.04),0 8px 24px rgba(26,29,28,.06);
  --shadow-hover:0 14px 32px rgba(26,29,28,.10);
  --sec-pad:clamp(56px,7vw,104px);
  --bs-primary:#17453D;
  --bs-border-radius:16px;
  --bs-body-font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--pine);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--amber);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button,input,textarea{font-family:inherit;font-size:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--pine);
  outline-offset:2px;
}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1400px){
  .container{max-width:1240px;}
}
@media (max-width:575.98px){
  .container{padding-left:20px;padding-right:20px;}
}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(246,243,237,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:64px;
}
@media (min-width:992px){
  .header-inner{min-height:72px;}
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--ink);
}
.brand:hover{color:var(--ink);}
.brand-badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:10px;
  background:var(--pine);
  color:#fff;
  font-size:13px;
  font-weight:700;
  letter-spacing:1px;
}
.brand-name{display:flex;flex-direction:column;line-height:1.2;}
.brand-name strong{
  font-size:17px;
  font-weight:700;
  color:var(--pine);
  letter-spacing:0;
}
.brand-name small{
  font-size:11.5px;
  color:var(--ink-3);
  margin-top:2px;
  font-weight:400;
}
.nav-chips{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1 1 auto;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  scroll-snap-type:x proximity;
  padding:6px 0;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;
  scroll-snap-align:start;
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:38px;
  padding:8px 16px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:transparent;
  color:var(--ink-2);
  font-size:14px;
  font-weight:500;
  white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.chip:hover{background:var(--paper-deep);color:var(--ink);}
.chip.is-active{
  background:var(--pine);
  border-color:var(--pine);
  color:#fff;
  position:relative;
  padding-right:26px;
}
.chip.is-active::after{
  content:"";
  position:absolute;
  right:12px;
  top:50%;
  transform:translateY(-50%);
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--amber);
}
.header-cta{flex:0 0 auto;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:12px 28px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  text-decoration:none;
}
.btn-amber{
  background:var(--amber);
  color:#fff;
  border-color:var(--amber);
  box-shadow:0 6px 18px rgba(224,122,47,.22);
}
.btn-amber:hover{
  background:var(--amber-hover);
  border-color:var(--amber-hover);
  color:#fff;
  transform:translateY(-1px);
}
.btn-amber:active{transform:translateY(0);}
.btn-outline-pine{
  background:transparent;
  color:var(--pine);
  border-color:var(--pine);
}
.btn-outline-pine:hover{
  background:var(--pine);
  color:#fff;
  border-color:var(--pine);
}
.btn-outline-paper{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.65);
}
.btn-outline-paper:hover{
  background:#fff;
  color:var(--pine);
  border-color:#fff;
}
.btn-sm{
  min-height:38px;
  padding:8px 18px;
  font-size:13.5px;
}
.btn-block{width:100%;}
.header-cta{min-height:42px;padding:10px 22px;font-size:14px;}

.link-amber{
  color:var(--amber);
  font-weight:600;
  font-size:14.5px;
  text-decoration:underline;
  text-underline-offset:3px;
}
.link-amber:hover{color:var(--amber-hover);}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  padding:clamp(36px,5vw,64px) 0 clamp(32px,4vw,52px);
  background:linear-gradient(180deg,var(--paper) 0%,var(--paper-deep) 100%);
  border-bottom:1px solid var(--line);
}
.breadcrumb-line{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-3);
  margin-bottom:18px;
}
.breadcrumb-line ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb-line li{display:inline-flex;align-items:center;gap:8px;color:var(--ink-3);}
.breadcrumb-line li+li::before{content:"/";color:#c4bcae;}
.breadcrumb-line a{color:var(--ink-3);}
.breadcrumb-line a:hover{color:var(--amber);}
.breadcrumb-line .current{color:var(--pine);font-weight:600;}

.page-hero h1{
  font-size:clamp(28px,4vw,44px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:0;
  color:var(--ink);
  margin-bottom:16px;
}
.page-hero h1 em{
  font-style:normal;
  color:var(--pine);
  box-shadow:inset 0 -8px 0 rgba(224,122,47,.18);
}
.hero-lead{
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-2);
  max-width:34em;
  margin-bottom:22px;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:30px;
  padding:4px 12px;
  border-radius:var(--r-btn);
  background:rgba(23,69,61,.08);
  color:var(--pine);
  font-size:13px;
  font-weight:500;
}
.tag.is-amber{background:rgba(224,122,47,.12);color:var(--amber-hover);}
.hero-figure{
  border-radius:var(--r-img);
  overflow:hidden;
  box-shadow:var(--shadow);
  border:1px solid var(--line);
  background:#fff;
}
.hero-figure img{
  width:100%;
  height:320px;
  object-fit:cover;
}

/* ---------- 顶部统计 ---------- */
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  margin-top:26px;
  padding-top:22px;
  border-top:1px solid var(--line);
}
.hero-stats .stat{
  flex:1 1 0;
  min-width:120px;
  padding-right:18px;
}
.hero-stats .stat+.stat{
  padding-left:18px;
  border-left:1px solid var(--line);
}
.hero-stats b{
  display:block;
  font-size:24px;
  font-weight:700;
  color:var(--pine);
  line-height:1.2;
}
.hero-stats span{
  display:block;
  font-size:13px;
  color:var(--ink-3);
  margin-top:2px;
}

/* ---------- 主体布局 ---------- */
.section{padding:var(--sec-pad) 0;}
.section-tight{padding:clamp(40px,5vw,72px) 0;}
.main-wrap{padding:clamp(40px,5vw,72px) 0 var(--sec-pad);}

.mobile-anchors{
  display:flex;
  gap:8px;
  overflow-x:auto;
  scrollbar-width:none;
  scroll-snap-type:x proximity;
  padding:4px 0 16px;
}
.mobile-anchors::-webkit-scrollbar{display:none;}
.mobile-anchors .chip{
  scroll-snap-align:start;
  background:#fff;
  font-size:13.5px;
  min-height:40px;
}
.mobile-anchors .chip:hover{background:var(--paper-deep);}

.anchor-panel{
  position:sticky;
  top:96px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 20px;
  box-shadow:var(--shadow);
}
.anchor-panel .panel-title{
  font-size:13px;
  font-weight:600;
  color:var(--ink-3);
  letter-spacing:1px;
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:8px;
}
.anchor-panel .panel-title::before{
  content:"";
  width:3px;
  height:14px;
  border-radius:2px;
  background:var(--amber);
}
.anchor-list{display:flex;flex-direction:column;gap:6px;}
.anchor-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  min-height:44px;
  padding:8px 14px;
  border-radius:10px;
  color:var(--ink-2);
  font-size:14.5px;
  transition:background .18s ease,color .18s ease;
}
.anchor-list a:hover{background:var(--paper-deep);color:var(--pine);}
.anchor-list a span{
  font-size:12px;
  color:var(--ink-3);
  font-variant-numeric:tabular-nums;
}
.anchor-tip{
  margin-top:18px;
  padding-top:16px;
  border-top:1px dashed var(--line);
  font-size:13px;
  line-height:1.7;
  color:var(--ink-3);
}
.anchor-tip a{color:var(--amber);text-decoration:underline;text-underline-offset:3px;}

/* ---------- 区块标题 ---------- */
.block-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
  flex-wrap:wrap;
}
.block-title{
  font-size:clamp(22px,2.6vw,32px);
  line-height:1.3;
  font-weight:700;
  color:var(--ink);
  letter-spacing:0;
  display:flex;
  align-items:center;
  gap:12px;
}
.block-title::before{
  content:"";
  width:3px;
  height:26px;
  border-radius:2px;
  background:var(--pine);
  flex:0 0 auto;
}
.block-sub{
  font-size:14.5px;
  color:var(--ink-3);
  margin-top:8px;
  max-width:44em;
}

/* ---------- 机型分组卡 ---------- */
.fit-card{
  height:100%;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 24px 20px;
  box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.fit-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
  border-color:#d5cdbe;
}
.fit-card .card-top{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:12px;
}
.square-badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:4px 8px;
  border-radius:4px;
  background:var(--pine);
  color:#fff;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:1px;
  flex:0 0 auto;
}
.fit-card h3{
  font-size:18px;
  font-weight:600;
  color:var(--ink);
  line-height:1.4;
}
.fit-card p{
  font-size:14.5px;
  line-height:1.75;
  color:var(--ink-2);
  margin-bottom:14px;
}
.fit-card .mini-spec{
  display:flex;
  justify-content:space-between;
  gap:12px;
  padding:9px 0;
  border-bottom:1px solid rgba(226,220,209,.65);
  font-size:13.5px;
}
.fit-card .mini-spec:last-child{border-bottom:0;}
.fit-card .mini-spec dt{color:var(--ink-3);font-weight:400;}
.fit-card .mini-spec dd{margin:0;color:var(--pine);font-weight:600;}

/* ---------- 要点清单 ---------- */
.check-panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--shadow);
}
.check-panel h3{
  font-size:19px;
  font-weight:600;
  margin-bottom:6px;
  color:var(--ink);
}
.check-panel .panel-note{
  font-size:14px;
  color:var(--ink-3);
  margin-bottom:20px;
}
.check-list li{
  position:relative;
  padding-left:26px;
  margin-bottom:12px;
  font-size:15px;
  line-height:1.75;
  color:var(--ink-2);
}
.check-list li:last-child{margin-bottom:0;}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:8px;
  height:8px;
  border-radius:2px;
  background:var(--pine);
}
.check-list li.is-key::before{background:var(--amber);}
.check-list strong{color:var(--ink);font-weight:600;}

/* ---------- 无边框参数行 ---------- */
.spec-panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:12px 28px;
  box-shadow:var(--shadow);
}
.spec-head{
  display:flex;
  justify-content:space-between;
  gap:16px;
  padding:18px 0 12px;
  border-bottom:1px solid rgba(226,220,209,.9);
  font-size:13px;
  font-weight:600;
  color:var(--ink-3);
  letter-spacing:1px;
}
.spec-row{
  display:flex;
  justify-content:space-between;
  align-items:baseline;
  gap:16px;
  padding:14px 0;
  border-bottom:1px solid rgba(226,220,209,.55);
}
.spec-row:last-child{border-bottom:0;}
.spec-key{
  font-size:14.5px;
  color:var(--ink-2);
}
.spec-val{
  font-size:14.5px;
  font-weight:600;
  color:var(--ink);
  text-align:right;
}
.spec-val.is-pine{color:var(--pine);}
.spec-val.is-warn{color:var(--warn);}

/* ---------- 偏差提示卡 ---------- */
.ghost-grid{display:grid;grid-template-columns:1fr;gap:16px;}
.ghost-card{
  background:var(--paper-deep);
  border-radius:14px;
  padding:18px 20px;
  border-left:3px solid var(--amber);
}
.ghost-card h4{
  font-size:15.5px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:6px;
}
.ghost-card p{
  font-size:14px;
  line-height:1.75;
  color:var(--ink-2);
}

/* ---------- FAQ ---------- */
.faq .accordion-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px !important;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:0 1px 2px rgba(26,29,28,.03);
}
.faq .accordion-item:last-child{margin-bottom:0;}
.faq .accordion-button{
  position:relative;
  width:100%;
  padding:18px 56px 18px 22px;
  background:#fff;
  border:0;
  border-radius:14px !important;
  font-size:16px;
  font-weight:600;
  line-height:1.55;
  color:var(--ink);
  text-align:left;
  box-shadow:none !important;
  transition:color .18s ease,background .18s ease;
}
.faq .accordion-button:not(.collapsed){
  color:var(--pine);
  background:#fff;
}
.faq .accordion-button::after{display:none;}
.faq .accordion-button::before{
  content:"+";
  position:absolute;
  right:22px;
  top:50%;
  transform:translateY(-50%);
  font-size:22px;
  font-weight:400;
  line-height:1;
  color:var(--pine);
  transition:color .18s ease,transform .18s ease;
}
.faq .accordion-button:not(.collapsed)::before{
  content:"−";
  color:var(--amber);
}
.faq .accordion-button:hover{background:#fdfbf7;}
.faq .accordion-body{
  padding:0 22px 20px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-2);
  border-top:0;
}

/* ---------- 页尾 CTA ---------- */
.cta-band{
  background:var(--pine);
  color:#fff;
  border-radius:var(--r-img);
  padding:clamp(32px,4.5vw,52px);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
  min-height:240px;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-40px;
  bottom:-60px;
  width:220px;
  height:220px;
  border-radius:50%;
  background:rgba(255,255,255,.05);
  pointer-events:none;
}
.cta-band h2{
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.35;
  font-weight:700;
  color:#fff;
  margin-bottom:10px;
}
.cta-band p{
  font-size:15px;
  line-height:1.8;
  color:rgba(255,255,255,.78);
  max-width:36em;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
  position:relative;
  z-index:1;
}
.cta-actions .text-link{
  color:#fff;
  font-size:14.5px;
  text-decoration:underline;
  text-underline-offset:4px;
}
.cta-actions .text-link:hover{color:#f6d7bd;}

.back-home{
  display:flex;
  justify-content:center;
  margin-top:36px;
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--sec-pad);
  background:var(--paper-deep);
  border-top:1px solid var(--line);
  padding:clamp(48px,6vw,72px) 0 0;
}
.footer-brand{
  font-size:19px;
  font-weight:700;
  color:var(--pine);
  margin-bottom:12px;
}
.footer-desc{
  font-size:14px;
  line-height:1.8;
  color:var(--ink-2);
  max-width:24em;
}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:14px;
}
.footer-links li{
  margin-bottom:10px;
  font-size:14px;
  color:var(--ink-2);
  line-height:1.7;
}
.footer-links a{color:var(--ink-2);}
.footer-links a:hover{color:var(--amber);}
.footer-bottom{
  margin-top:clamp(32px,4vw,48px);
  border-top:1px solid var(--line);
  padding:20px 0 24px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:var(--ink-3);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:1040;
  display:flex;
  align-items:center;
  gap:10px;
  padding:6px 8px 6px 6px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  box-shadow:var(--shadow-hover);
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta .btn{
  min-height:44px;
  padding:10px 22px;
  font-size:14px;
}
.float-cta .float-link{
  font-size:13.5px;
  color:var(--ink-2);
  padding-right:10px;
  white-space:nowrap;
}
.float-cta .float-link:hover{color:var(--amber);}

@media (max-width:767.98px){
  body{padding-bottom:80px;}
  .float-cta{
    left:0;
    right:0;
    bottom:0;
    border-radius:0;
    border-left:0;
    border-right:0;
    border-bottom:0;
    padding:8px 16px calc(8px + env(safe-area-inset-bottom,0px));
    justify-content:space-between;
    gap:12px;
    opacity:1;
    visibility:visible;
    transform:none;
    background:#fff;
    box-shadow:0 -6px 20px rgba(26,29,28,.08);
  }
  .float-cta .btn{flex:1 1 auto;min-height:48px;}
  .float-cta .float-link{flex:0 0 auto;font-size:13px;}
}

/* ---------- 响应式细节 ---------- */
@media (max-width:991.98px){
  .nav-chips{order:3;flex-basis:100%;padding-top:0;}
  .header-inner{flex-wrap:wrap;row-gap:0;padding-bottom:6px;gap:12px;}
  .header-cta{margin-left:auto;}
  .anchor-panel{position:static;margin-top:8px;}
  .hero-figure img{height:280px;}
}
@media (max-width:575.98px){
  .page-hero h1{font-size:26px;}
  .brand-name small{display:none;}
  .header-cta{min-height:40px;padding:8px 16px;font-size:13.5px;}
  .hero-stats .stat{flex:1 1 100%;padding:10px 0;border-left:0 !important;padding-left:0 !important;}
  .hero-stats .stat+.stat{border-top:1px solid var(--line);}
  .check-panel,.spec-panel{padding:20px;}
  .fit-card{padding:20px;}
  .spec-row{flex-direction:column;gap:4px;align-items:flex-start;}
  .spec-val{text-align:left;}
  .cta-band{padding:28px 22px;}
  .btn{width:100%;}
  .float-cta .btn{width:auto;}
  .cta-actions{width:100%;}
  .cta-actions .text-link{width:100%;text-align:center;}
}

/* roulang page: article */
:root{
  --ink:#1A1D1C;
  --ink-2:#4A514E;
  --ink-3:#7C8480;
  --green:#17453D;
  --green-dark:#0F332D;
  --green-hover:#1F5A4E;
  --amber:#E07A2F;
  --amber-hover:#C9661F;
  --paper:#F6F3ED;
  --paper-2:#EFEAE1;
  --card:#FFFFFF;
  --line:#E2DCD1;
  --ok:#2F7D5B;
  --warn:#C9861F;
  --err:#B33A2B;
  --r-card:16px;
  --r-lg:20px;
  --r-pill:999px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(26,29,28,.04), 0 8px 24px rgba(26,29,28,.06);
  --sh-2:0 14px 32px rgba(26,29,28,.10);
  --font:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --bs-body-bg:var(--paper);
  --bs-body-color:var(--ink);
  --bs-body-font-family:var(--font);
  --bs-primary:#17453D;
  --bs-primary-rgb:23,69,61;
  --bs-link-color:#B85F1C;
  --bs-link-hover-color:#C9661F;
  --bs-border-color:var(--line);
  --bs-border-radius:16px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:focus-visible,button:focus-visible,.chip:focus-visible,.btn:focus-visible{
  outline:2px solid var(--green);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0}
button{font-family:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media (min-width:1400px){.container{max-width:1240px}}
@media (max-width:575.98px){.container{padding-left:20px;padding-right:20px}}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(246,243,237,.92);
  -webkit-backdrop-filter:saturate(150%) blur(10px);
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;height:64px}
@media (min-width:992px){.header-inner{height:72px}}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-badge{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:10px;
  background:var(--green);color:#fff;
  font-size:13px;font-weight:700;letter-spacing:.5px;
  transition:background .2s ease;
}
.brand:hover .brand-badge{background:var(--green-hover)}
.brand-name{display:flex;flex-direction:column;line-height:1.25}
.brand-name strong{font-size:17px;font-weight:700;color:var(--green);letter-spacing:0}
.brand-name small{font-size:11px;color:var(--ink-3);letter-spacing:.2px}
.nav-chips{flex:1;display:flex;align-items:center;justify-content:center;gap:8px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 18px;
  border:1px solid var(--line);border-radius:var(--r-pill);
  background:transparent;color:var(--ink-2);
  font-size:14px;font-weight:500;white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.chip:hover{background:var(--paper-2);color:var(--green);border-color:#D6CFC2}
.chip.is-active{background:var(--green);color:#fff;border-color:var(--green);position:relative}
.chip.is-active::after{
  content:"";position:absolute;right:8px;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--amber);
  display:none;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;height:48px;padding:0 28px;
  border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;text-align:center;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-amber{background:var(--amber);color:#fff;border-color:var(--amber);box-shadow:0 1px 2px rgba(26,29,28,.06)}
.btn-amber:hover{background:var(--amber-hover);border-color:var(--amber-hover);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(26,29,28,.14)}
.btn-amber:active{transform:translateY(0);box-shadow:0 1px 2px rgba(26,29,28,.06)}
.btn-ghost{background:transparent;color:var(--green);border-color:var(--green)}
.btn-ghost:hover{background:var(--green);color:#fff;border-color:var(--green)}
.header-cta{height:42px;min-height:42px;padding:0 20px;font-size:14px;flex-shrink:0}
.text-link{
  color:var(--amber);font-weight:600;font-size:14px;
  text-decoration:underline;text-underline-offset:3px;
  display:inline-flex;align-items:center;min-height:44px;
}
.text-link:hover{color:var(--amber-hover)}
.text-link.light{color:#F2C99C}
.text-link.light:hover{color:#fff}
@media (max-width:767.98px){
  .header-inner{flex-wrap:wrap;height:auto;padding:10px 0 8px;gap:10px}
  .nav-chips{
    order:3;flex:0 0 100%;width:100%;justify-content:flex-start;
    flex-wrap:nowrap;padding-bottom:2px;
    scroll-snap-type:x proximity;
  }
  .chip{scroll-snap-align:start;padding:0 16px;font-size:14px}
  .header-cta{margin-left:auto;height:38px;min-height:38px;padding:0 16px;font-size:13px}
  .brand-name strong{font-size:16px}
}
@media (max-width:479.98px){
  .brand-name small{display:none}
  .brand-badge{width:34px;height:34px;font-size:12px}
}

/* ---------- 阅读进度 ---------- */
.reading-progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:1100;pointer-events:none;background:transparent}
.reading-progress span{display:block;height:100%;width:0;background:var(--amber);transition:width .1s linear}

/* ---------- 文章头部 ---------- */
.article-head{padding:26px 0 0;background:linear-gradient(180deg,#F6F3ED 0%,#F8F5F0 100%)}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;font-size:13px;color:var(--ink-3);margin-bottom:18px}
.crumbs li{display:flex;align-items:center;gap:8px;min-width:0}
.crumbs li+li::before{content:"/";color:#C9C2B5}
.crumbs a{color:var(--ink-2)}
.crumbs a:hover{color:var(--amber)}
.crumb-current{display:block;max-width:56vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ink-3)}
.article-title{
  font-size:clamp(26px,3.6vw,38px);
  line-height:1.3;font-weight:700;letter-spacing:0;color:var(--ink);
  margin-bottom:18px;max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:14px;color:var(--ink-3);
  padding-bottom:24px;border-bottom:1px solid var(--line);
}
.cat-chip{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:var(--r-pill);background:rgba(23,69,61,.09);
  color:var(--green);font-size:13px;font-weight:600;
}
.meta-dot{color:#C9C2B5}

/* ---------- 正文 ---------- */
.article-wrap{padding:0 0 clamp(40px,5vw,64px);background:#F8F5F0}
.article-shell{max-width:760px;margin:0 auto;padding:34px 0 0}
.article-body{
  font-size:16px;line-height:1.85;color:var(--ink);
  overflow-wrap:break-word;word-break:break-word;
}
.article-body p{margin-bottom:1em}
.article-body h2{
  position:relative;
  font-size:clamp(19px,2vw,24px);line-height:1.4;font-weight:700;letter-spacing:0;
  margin:32px 0 12px;padding-left:18px;color:var(--ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;bottom:.3em;width:4px;
  border-radius:2px;background:var(--green);
}
.article-body h3{font-size:18px;line-height:1.4;font-weight:700;margin:24px 0 10px;color:var(--ink)}
.article-body h4{font-size:16px;font-weight:700;margin:20px 0 8px}
.article-body ul,.article-body ol{padding-left:1.2em;margin-bottom:1em;line-height:1.8}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:.4em}
.article-body li::marker{color:var(--green)}
.article-body img{border-radius:16px;margin:20px 0 6px;height:auto}
.article-body figure{margin:20px 0}
.article-body figcaption,.article-body .caption{font-size:13px;color:var(--ink-3);margin-top:4px;line-height:1.6}
.article-body blockquote{
  margin:20px 0;padding:16px 20px;
  border-left:3px solid var(--amber);border-radius:0 12px 12px 0;
  background:var(--paper);color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--amber);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--amber-hover)}
.article-body strong{font-weight:700;color:var(--ink)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:28px 0}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.article-body th{background:var(--paper-2);font-weight:600;color:var(--green)}
.article-body pre{background:var(--paper-2);border-radius:12px;padding:16px;overflow-x:auto;font-size:14px;line-height:1.7}
.article-body code{background:var(--paper-2);border-radius:6px;padding:1px 5px;font-size:.92em}
@media (max-width:575.98px){
  .article-body{font-size:15.5px;line-height:1.75}
  .article-title{font-size:26px}
  .crumb-current{max-width:46vw}
}

/* ---------- 文末标签与操作 ---------- */
.article-tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin:34px 0 0;padding-top:26px;border-top:1px solid var(--line);
}
.tags-label{font-size:13px;font-weight:600;color:var(--ink-3);margin-right:4px}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:var(--r-pill);background:rgba(23,69,61,.07);
  color:var(--green);font-size:13px;font-weight:600;
  transition:background .2s ease,color .2s ease;
}
a.tag:hover{background:var(--green);color:#fff}
.article-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
@media (max-width:575.98px){
  .article-actions .btn{width:100%}
}

/* ---------- 空态 ---------- */
.empty-state{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:clamp(28px,5vw,48px);box-shadow:var(--sh-1);text-align:center;
}
.empty-state h2{font-size:22px;font-weight:700;margin-bottom:12px;color:var(--green)}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:24px}
.empty-state .btn{margin:0 auto}

/* ---------- 相关推荐 ---------- */
.related{padding:clamp(48px,6vw,84px) 0;background:var(--paper-2)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;
  color:var(--amber);text-transform:uppercase;margin-bottom:8px;
}
.sec-title{font-size:clamp(22px,2.6vw,30px);line-height:1.3;font-weight:700;letter-spacing:0;color:var(--ink)}
.card-post{
  display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card-post:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D6CFC2}
.card-media{aspect-ratio:16/10;overflow:hidden;background:var(--paper-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease}
.card-post:hover .card-media img{transform:scale(1.03)}
.card-body{padding:22px;display:flex;flex-direction:column;flex:1}
.card-title{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:10px;
}
.card-desc{
  font-size:14px;line-height:1.7;color:var(--ink-2);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;font-size:13px;color:var(--ink-3);
}

/* ---------- 收尾 CTA ---------- */
.cta-band{
  background:var(--green);color:#fff;
  padding:clamp(48px,6vw,72px) 0;
  min-height:240px;display:flex;align-items:center;
}
.cta-inner{display:flex;flex-direction:column;align-items:flex-start;gap:14px;max-width:760px}
.cta-band h2{font-size:clamp(22px,2.8vw,32px);line-height:1.3;font-weight:700;color:#fff}
.cta-band p{color:rgba(255,255,255,.82);font-size:15.5px;line-height:1.8}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:6px}
@media (max-width:575.98px){
  .cta-actions{width:100%;flex-direction:column;align-items:stretch;gap:8px}
  .cta-actions .btn{width:100%}
  .cta-actions .text-link{justify-content:center}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--green-dark);color:rgba(255,255,255,.76);padding:64px 0 0;margin-top:0}
.footer-brand{font-size:19px;font-weight:700;color:#fff;margin-bottom:12px;letter-spacing:0}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:30em}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-links li{font-size:14px;color:rgba(255,255,255,.66);line-height:1.7}
.footer-links a{color:rgba(255,255,255,.72);display:inline-flex;align-items:center;min-height:24px}
.footer-links a:hover{color:var(--amber)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:44px;padding:20px 0 26px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:rgba(255,255,255,.56);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  display:inline-flex;align-items:center;justify-content:center;
  height:54px;padding:0 26px;border-radius:var(--r-pill);
  background:var(--amber);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 12px 28px rgba(26,29,28,.20);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease,background .2s ease;
}
.float-cta:hover{background:var(--amber-hover);color:#fff}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.mobile-bar{display:none}
@media (max-width:767.98px){
  .float-cta{display:none}
  .mobile-bar{
    display:flex;align-items:center;gap:12px;
    position:fixed;left:0;right:0;bottom:0;z-index:1040;
    padding:8px 16px calc(8px + env(safe-area-inset-bottom,0px));
    background:rgba(255,255,255,.96);
    -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
    border-top:1px solid var(--line);
    box-shadow:0 -6px 18px rgba(26,29,28,.06);
  }
  .mobile-bar .btn{flex:1;height:44px;min-height:44px;font-size:15px}
  .mobile-bar .bar-link{
    font-size:13px;font-weight:600;color:var(--ink-2);white-space:nowrap;
    min-height:44px;display:inline-flex;align-items:center;padding:0 4px;
  }
  .mobile-bar .bar-link:hover{color:var(--amber)}
  body{padding-bottom:72px}
}
@media (min-width:768px){.mobile-bar{display:none}}

/* roulang page: category2 */
:root{
  --ink:#17453D;
  --ink-dark:#0F332D;
  --ink-hover:#1F5A4E;
  --amber:#E07A2F;
  --amber-hover:#C9661F;
  --paper:#F6F3ED;
  --sink:#EFEAE1;
  --card:#FFFFFF;
  --t1:#1A1D1C;
  --t2:#4A514E;
  --t3:#7C8480;
  --line:#E2DCD1;
  --ok:#2F7D5B;
  --warn:#C9861F;
  --err:#B33A2B;
  --r-card:16px;
  --r-lg:20px;
  --r-pill:999px;
  --r-input:12px;
  --sh:0 1px 2px rgba(26,29,28,.04),0 8px 24px rgba(26,29,28,.06);
  --sh-hover:0 14px 32px rgba(26,29,28,.10);
  --pad-y:clamp(56px,7vw,104px);
  --bs-primary:#17453D;
  --bs-body-color:#1A1D1C;
  --bs-body-bg:#F6F3ED;
  --bs-border-color:#E2DCD1;
  --bs-border-radius:16px;
  --bs-border-radius-lg:16px;
  --bs-border-radius-pill:999px;
  --bs-link-color:#17453D;
  --bs-link-hover-color:#C9661F;
  --bs-body-font-family:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--t1);
  font-family:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--amber-hover)}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;color:var(--t1);letter-spacing:0;font-weight:700}
h1{font-size:clamp(28px,4vw,44px);line-height:1.25}
h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3}
h3{font-size:19px;line-height:1.4;font-weight:600}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px}

/* 容器 */
.container{
  width:100%;
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1400px){
  .container{max-width:1240px}
}
@media (max-width:575.98px){
  .container{padding-left:20px;padding-right:20px}
}

/* 顶栏 */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(246,243,237,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:64px;
}
@media (min-width:992px){
  .header-inner{min-height:72px}
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--ink);
}
.brand:hover{color:var(--ink-hover)}
.brand-badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  background:var(--ink);
  color:#fff;
  font-size:13px;
  font-weight:700;
  border-radius:4px;
  letter-spacing:0;
}
.brand-name{display:flex;flex-direction:column;line-height:1.15}
.brand-name strong{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:0}
.brand-name small{font-size:11.5px;color:var(--t3);font-weight:400}
.nav-chips{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1 1 auto;
  justify-content:center;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  scroll-snap-type:x proximity;
  padding:4px 2px;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  flex:0 0 auto;
  height:38px;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  background:transparent;
  color:var(--t2);
  font-size:14px;
  white-space:nowrap;
  scroll-snap-align:start;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.chip:hover{background:var(--sink);color:var(--ink)}
.chip.is-active{
  background:var(--ink);
  border-color:var(--ink);
  color:#fff;
  font-weight:600;
  position:relative;
  padding-right:26px;
}
.chip.is-active::after{
  content:"";
  position:absolute;
  right:12px;
  top:50%;
  width:6px;
  height:6px;
  margin-top:-3px;
  border-radius:50%;
  background:var(--amber);
}
.header-cta{flex:0 0 auto}
@media (max-width:991.98px){
  .header-inner{flex-wrap:wrap;gap:10px;padding:10px 0}
  .brand{order:1}
  .header-cta{order:2;margin-left:auto;height:40px;padding:0 18px;font-size:14px}
  .nav-chips{order:3;flex-basis:100%;justify-content:flex-start;gap:8px;padding-bottom:2px}
}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:12px 28px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  letter-spacing:0;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
.btn-amber{
  background:var(--amber);
  color:#fff;
  border-color:var(--amber);
  box-shadow:0 6px 18px rgba(224,122,47,.22);
}
.btn-amber:hover{background:var(--amber-hover);border-color:var(--amber-hover);color:#fff;transform:translateY(-1px)}
.btn-amber:active{transform:translateY(0)}
.btn-outline{
  background:transparent;
  color:var(--ink);
  border-color:var(--ink);
}
.btn-outline:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-ghost-light{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.55);
}
.btn-ghost-light:hover{background:#fff;color:var(--ink);border-color:#fff}
.link-amber{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--amber);
  font-weight:600;
  font-size:15px;
  text-decoration:underline;
  text-underline-offset:3px;
  text-decoration-thickness:1px;
}
.link-amber:hover{color:var(--amber-hover)}

/* 页头 */
.page-head{
  padding:clamp(36px,5vw,64px) 0 clamp(30px,4vw,48px);
  background:var(--paper);
  border-bottom:1px solid var(--line);
}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--t3);
  margin:0 0 18px;
  padding:0;
}
.crumb li{display:inline-flex;align-items:center;gap:6px}
.crumb li+li::before{content:"/";color:var(--line);margin-right:2px}
.crumb a{color:var(--t3)}
.crumb a:hover{color:var(--amber-hover)}
.crumb .current{color:var(--t2)}
.head-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--ink);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:6px 14px;
  margin-bottom:16px;
}
.head-eyebrow::before{
  content:"";
  width:2px;
  height:14px;
  background:var(--ink);
  border-radius:2px;
}
.page-head h1{margin-bottom:16px}
.page-head h1 .hl{color:var(--ink)}
.head-lead{
  font-size:16px;
  line-height:1.85;
  color:var(--t2);
  max-width:34em;
  margin:0;
}
.head-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh);
  aspect-ratio:4/3;
  background:var(--sink);
}
.head-media img{width:100%;height:100%;object-fit:cover}
.head-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}
.pill-tag{
  display:inline-flex;
  align-items:center;
  height:30px;
  padding:0 14px;
  border-radius:var(--r-pill);
  background:#fff;
  border:1px solid var(--line);
  color:var(--t2);
  font-size:13px;
}

/* 主体布局 */
.main-body{padding:var(--pad-y) 0}
.toc{position:sticky;top:96px}
.toc-box{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px;
  box-shadow:var(--sh);
}
.toc-title{
  font-size:13px;
  font-weight:600;
  color:var(--t3);
  letter-spacing:.04em;
  margin-bottom:12px;
}
.toc-chips{display:flex;flex-direction:column;gap:8px}
.toc-chip{
  display:flex;
  align-items:center;
  min-height:44px;
  padding:8px 14px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--paper);
  color:var(--t2);
  font-size:14px;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.toc-chip:hover{background:var(--sink);color:var(--ink);border-color:var(--ink);transform:translateX(2px)}
.toc-hint{
  margin-top:16px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--t3);
  line-height:1.7;
}
@media (max-width:991.98px){
  .toc{position:static;margin-bottom:8px}
  .toc-box{padding:14px;background:transparent;border:none;box-shadow:none;border-radius:0}
  .toc-title{margin-bottom:10px}
  .toc-chips{
    flex-direction:row;
    gap:8px;
    overflow-x:auto;
    scrollbar-width:none;
    -ms-overflow-style:none;
    scroll-snap-type:x proximity;
    padding-bottom:4px;
    margin:0 -4px;
    padding-left:4px;
    padding-right:4px;
  }
  .toc-chips::-webkit-scrollbar{display:none}
  .toc-chip{flex:0 0 auto;scroll-snap-align:start;background:#fff}
  .toc-hint{display:none}
}

/* 内容区块 */
.section + .section{margin-top:clamp(40px,5vw,64px)}
.section-head{margin-bottom:26px}
.section-head h2{margin-bottom:10px}
.section-head p{color:var(--t2);font-size:15.5px;line-height:1.85;margin:0;max-width:40em}
.section-tag{
  display:inline-block;
  font-size:12.5px;
  font-weight:600;
  color:var(--ink);
  background:var(--sink);
  border-radius:4px;
  padding:3px 8px;
  margin-bottom:12px;
}

/* 步骤条 */
.steps{position:relative;padding-left:56px}
.steps::before{
  content:"";
  position:absolute;
  left:19px;
  top:14px;
  bottom:14px;
  width:2px;
  background:var(--line);
}
.step{position:relative;padding-bottom:28px}
.step:last-child{padding-bottom:0}
.step-no{
  position:absolute;
  left:-56px;
  top:0;
  display:flex;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border-radius:12px;
  background:var(--ink);
  color:#fff;
  font-size:14px;
  font-weight:700;
  box-shadow:0 4px 12px rgba(23,69,61,.18);
}
.step h3{margin-bottom:8px;padding-top:6px}
.step p{color:var(--t2);font-size:15.5px;line-height:1.85;margin:0 0 12px}
.tick-list{display:flex;flex-direction:column;gap:8px}
.tick-list li{
  position:relative;
  padding-left:22px;
  font-size:14.5px;
  line-height:1.75;
  color:var(--t2);
}
.tick-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.6em;
  width:8px;
  height:8px;
  border-radius:2px;
  background:var(--amber);
}
@media (max-width:575.98px){
  .steps{padding-left:44px}
  .steps::before{left:15px}
  .step-no{left:-44px;width:32px;height:32px;border-radius:10px;font-size:13px}
  .step h3{padding-top:2px;font-size:17.5px}
}

/* 场景卡 */
.scene-grid{display:grid;gap:24px;grid-template-columns:1fr}
@media (min-width:576px){.scene-grid{grid-template-columns:repeat(2,1fr)}}
.scene-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh);
  transition:transform .2s ease,box-shadow .2s ease;
  display:flex;
  flex-direction:column;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.scene-media{aspect-ratio:16/10;overflow:hidden;background:var(--sink)}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.scene-card:hover .scene-media img{transform:scale(1.03)}
.scene-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:8px}
.scene-body h3{font-size:17.5px}
.scene-body p{margin:0;font-size:14.5px;line-height:1.8;color:var(--t2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tag{
  align-self:flex-start;
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:#EAF1EF;
  color:var(--ink);
  font-size:12.5px;
  font-weight:600;
}

/* 深色节奏区 */
.cadence{
  background:var(--ink);
  border-radius:var(--r-lg);
  padding:clamp(26px,4vw,44px);
  color:#fff;
  display:grid;
  gap:24px;
  grid-template-columns:1fr;
}
@media (min-width:768px){.cadence{grid-template-columns:1.1fr .9fr;align-items:center}}
.cadence h2{color:#fff;font-size:clamp(20px,2.4vw,28px);margin-bottom:12px}
.cadence p{color:rgba(255,255,255,.82);font-size:15px;line-height:1.85;margin:0}
.cadence-list{display:flex;flex-direction:column;gap:0}
.cadence-list li{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  padding:14px 0;
  border-bottom:1px solid rgba(255,255,255,.16);
  font-size:14.5px;
}
.cadence-list li:last-child{border-bottom:none}
.cadence-list .k{color:rgba(255,255,255,.7)}
.cadence-list .v{color:#fff;font-weight:600;white-space:nowrap}

/* FAQ */
.faq-wrap{display:flex;flex-direction:column;gap:12px}
.accordion-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:14px !important;
  overflow:hidden;
  box-shadow:var(--sh);
}
.accordion-item + .accordion-item{margin-top:12px}
.accordion-button{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  padding:18px 20px;
  background:var(--card);
  border:0;
  border-radius:14px !important;
  font-size:16px;
  font-weight:600;
  color:var(--t1);
  text-align:left;
  box-shadow:none !important;
  transition:color .2s ease,background .2s ease;
}
.accordion-button:hover{background:#FBFAF7;color:var(--ink)}
.accordion-button:not(.collapsed){
  background:var(--card);
  color:var(--ink);
  box-shadow:none !important;
}
.accordion-button:focus{box-shadow:none !important;outline:2px solid var(--ink);outline-offset:-2px}
.accordion-button::after{
  content:"+";
  flex:0 0 auto;
  width:28px;
  height:28px;
  display:flex;
  align-items:center;
  justify-content:center;
  background-image:none !important;
  background:var(--sink);
  color:var(--ink);
  border-radius:50%;
  font-size:18px;
  font-weight:600;
  line-height:1;
  transform:none !important;
  transition:background .2s ease,color .2s ease;
}
.accordion-button:not(.collapsed)::after{
  content:"−";
  background:var(--ink);
  color:#fff;
}
.accordion-body{
  padding:0 20px 20px;
  font-size:15px;
  line-height:1.8;
  color:var(--t2);
}
.accordion-body p{margin:0 0 .8em}
.accordion-body p:last-child{margin-bottom:0}

/* 结尾操作 */
.end-actions{
  margin-top:clamp(36px,4vw,56px);
  padding-top:28px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
}
.end-note{font-size:13.5px;color:var(--t3);margin:0}
@media (max-width:575.98px){
  .end-actions .btn{width:100%}
}

/* 页脚 */
.site-footer{
  margin-top:clamp(56px,7vw,88px);
  background:var(--sink);
  border-top:1px solid var(--line);
  padding:clamp(40px,5vw,64px) 0 0;
}
.footer-brand{
  font-size:18px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:10px;
}
.footer-desc{
  font-size:14px;
  line-height:1.75;
  color:var(--t2);
  max-width:26em;
  margin:0;
}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:var(--t1);
  margin-bottom:14px;
}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links li{font-size:14px;color:var(--t2);line-height:1.7}
.footer-links a{color:var(--t2)}
.footer-links a:hover{color:var(--amber-hover)}
.footer-bottom{
  margin-top:clamp(28px,4vw,44px);
  padding:20px 0;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:var(--t3);
}

/* 浮动 CTA */
.float-cta{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:1040;
  display:flex;
  align-items:center;
  gap:12px;
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
}
.float-cta.is-on{opacity:1;visibility:visible;transform:translateY(0)}
.fc-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:54px;
  padding:0 28px;
  border-radius:var(--r-pill);
  background:var(--amber);
  color:#fff;
  font-size:15px;
  font-weight:600;
  box-shadow:0 12px 28px rgba(224,122,47,.32);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.fc-main:hover{background:var(--amber-hover);color:#fff;transform:translateY(-1px);box-shadow:0 16px 32px rgba(201,102,31,.34)}
.fc-sub{display:none}
@media (max-width:767.98px){
  body{padding-bottom:76px}
  .float-cta{
    left:0;
    right:0;
    bottom:0;
    gap:14px;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    background:#fff;
    border-top:1px solid var(--line);
    box-shadow:0 -6px 20px rgba(26,29,28,.08);
    transform:translateY(100%);
  }
  .float-cta.is-on{transform:translateY(0)}
  .fc-main{flex:1 1 auto;height:48px;padding:0 18px;font-size:15px;box-shadow:none}
  .fc-sub{
    display:inline-flex;
    flex:0 0 auto;
    align-items:center;
    justify-content:center;
    min-height:44px;
    font-size:14px;
    font-weight:600;
    color:var(--ink);
    text-decoration:underline;
    text-underline-offset:3px;
  }
}