/* roulang page: index */
:root{
  --ink-900:#0F2A25;
  --ink-800:#143C34;
  --ink-700:#1B5147;
  --jade-500:#2E7967;
  --jade-100:#DDE8E3;
  --clay-500:#D9714F;
  --clay-600:#C25A38;
  --sand-50:#FAF8F4;
  --paper:#FFFFFF;
  --stone-900:#2A2E2C;
  --stone-500:#6E7672;
  --line:#E4E0D8;
  --radius-card:14px;
  --radius-img:12px;
  --radius-badge:6px;
  --radius-pill:999px;
  --shadow-1:0 1px 0 rgba(15,42,37,.06);
  --shadow-2:0 18px 40px -24px rgba(15,42,37,.28);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --nav-h:124px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:140px;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--stone-900);
  background:var(--sand-50);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--ink-700);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--jade-500);}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:700;letter-spacing:-.01em;line-height:1.25;color:var(--ink-900);margin:0;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--ink-700);
  outline-offset:2px;
}
.grid-container{max-width:1200px;padding-left:28px;padding-right:28px;margin-left:auto;margin-right:auto;}
.grid-x{margin-left:-14px;margin-right:-14px;}
.grid-x>.cell{padding-left:14px;padding-right:14px;}
@media screen and (min-width:1440px){
  .grid-container{max-width:1280px;padding-left:40px;padding-right:40px;}
}
@media screen and (max-width:640px){
  .grid-container{padding-left:18px;padding-right:18px;}
  .grid-x{margin-left:-8px;margin-right:-8px;}
  .grid-x>.cell{padding-left:8px;padding-right:8px;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--clay-500);color:#fff;box-shadow:0 10px 24px -14px rgba(217,113,79,.95);}
.btn-primary:hover{background:var(--clay-600);color:#fff;transform:translateY(-1px);box-shadow:0 14px 28px -14px rgba(194,90,56,.95);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 14px -10px rgba(194,90,56,.9);}
.btn-ghost{background:transparent;color:var(--ink-700);border-color:var(--ink-700);}
.btn-ghost:hover{background:var(--ink-700);color:#fff;transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{background:#fff;color:var(--ink-900);}
.btn-light:hover{background:var(--jade-100);color:var(--ink-900);transform:translateY(-1px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.button,.button:hover,.button:focus{background:transparent;color:inherit;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,248,244,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-stuck{background:#fff;border-bottom-color:var(--line);box-shadow:0 8px 24px -22px rgba(15,42,37,.5);}
.nav-top-inner{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--ink-700),var(--jade-500));
}
.brand-mark svg{width:19px;height:19px;fill:none;stroke:#fff;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{font-family:var(--font-serif);font-size:20px;font-weight:700;color:var(--ink-900);letter-spacing:.01em;}
.brand:hover .brand-text{color:var(--ink-700);}
.search-box{
  margin-left:auto;display:flex;align-items:center;width:260px;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-pill);
  padding:4px 6px 4px 16px;transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{border-color:var(--ink-700);box-shadow:0 0 0 3px rgba(221,232,227,.9);}
.search-box input{
  flex:1 1 auto;border:0;background:transparent;height:34px;font-size:14px;color:var(--stone-900);margin:0;
}
.search-box input::placeholder{color:#9BA29E;}
.search-box input:focus{outline:none;box-shadow:none;}
.search-box button{
  width:34px;height:34px;border:0;border-radius:var(--radius-pill);background:var(--jade-100);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background-color .2s ease;
}
.search-box button:hover{background:var(--ink-700);}
.search-box button svg{width:15px;height:15px;fill:none;stroke:var(--ink-700);stroke-width:1.8;stroke-linecap:round;}
.search-box button:hover svg{stroke:#fff;}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:var(--radius-pill);border:1px solid var(--line);
  background:var(--paper);align-items:center;justify-content:center;cursor:pointer;
}
.menu-toggle span{display:block;width:17px;height:1.6px;background:var(--ink-700);position:relative;}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:17px;height:1.6px;background:var(--ink-700);}
.menu-toggle span::before{top:-5px;}
.menu-toggle span::after{top:5px;}

.nav-bottom{position:relative;border-top:1px solid transparent;}
.nav-bottom-inner{display:flex;align-items:center;height:52px;}
.channel-tabs{
  display:flex;align-items:center;gap:8px;overflow-x:auto;scroll-snap-type:x proximity;
  scrollbar-width:none;-ms-overflow-style:none;padding:4px 0;
}
.channel-tabs::-webkit-scrollbar{display:none;}
.channel-tabs li{flex:0 0 auto;scroll-snap-align:start;}
.channel-tabs a{
  display:inline-block;padding:8px 20px;border-radius:var(--radius-pill);
  font-size:14.5px;font-weight:500;color:var(--stone-500);white-space:nowrap;
  transition:background-color .2s ease,color .2s ease;
}
.channel-tabs a:hover{background:var(--jade-100);color:var(--ink-700);}
.channel-tabs a.is-active{background:var(--ink-700);color:#fff;}
.channel-tabs a.is-active:hover{background:var(--ink-800);color:#fff;}
.tabs,.tabs-title>a{background:transparent;color:var(--stone-500);}
.tabs-title>a:focus,.tabs-title>a[aria-selected="true"]{background:transparent;color:var(--ink-700);}
.nav-bottom::before,.nav-bottom::after{
  content:"";position:absolute;top:0;bottom:0;width:34px;pointer-events:none;z-index:2;opacity:0;transition:opacity .2s ease;
}
.nav-bottom::before{left:0;background:linear-gradient(90deg,rgba(250,248,244,1),rgba(250,248,244,0));}
.nav-bottom::after{right:0;background:linear-gradient(270deg,rgba(250,248,244,1),rgba(250,248,244,0));}
@media screen and (max-width:860px){
  .nav-bottom::before,.nav-bottom::after{opacity:1;}
}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:90;background:rgba(15,42,37,.45);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer.is-open{opacity:1;visibility:visible;}
.drawer-panel{
  position:absolute;top:0;right:0;width:min(360px,86vw);height:100%;background:var(--paper);
  padding:24px 22px;transform:translateX(100%);transition:transform .3s cubic-bezier(.22,.61,.36,1);
  overflow-y:auto;
}
.drawer.is-open .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{width:38px;height:38px;border-radius:var(--radius-pill);border:1px solid var(--line);background:var(--paper);cursor:pointer;color:var(--ink-700);font-size:19px;line-height:1;}
.drawer-close:hover{background:var(--jade-100);}
.drawer-nav a{display:block;padding:14px 4px;border-bottom:1px solid var(--line);font-size:16px;color:var(--ink-900);}
.drawer-nav a:hover{color:var(--jade-500);}
.drawer-nav a.is-active{color:var(--ink-700);font-weight:600;}
.drawer-search{display:flex;margin:20px 0 8px;background:var(--sand-50);border:1px solid var(--line);border-radius:var(--radius-pill);padding:4px 6px 4px 16px;}
.drawer-search input{flex:1 1 auto;border:0;background:transparent;height:36px;font-size:14px;}
.drawer-search input:focus{outline:none;}

/* ---------- Hero ---------- */
.hero{padding:72px 0 64px;background:var(--sand-50);overflow:hidden;}
.hero-copy{max-width:600px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--radius-badge);
  background:var(--jade-100);color:var(--ink-700);font-size:12.5px;font-weight:600;letter-spacing:.08em;
  margin-bottom:22px;
}
.hero h1{
  font-size:clamp(30px,4vw,52px);line-height:1.2;color:var(--ink-900);margin-bottom:20px;
}
.hero h1 em{font-style:normal;color:var(--clay-500);}
.hero-sub{font-size:18px;line-height:1.8;color:var(--stone-500);max-width:540px;}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin:32px 0 34px;}
.link-arrow{font-weight:600;font-size:15px;color:var(--ink-700);border-bottom:1px dashed var(--line);padding-bottom:2px;}
.link-arrow:hover{color:var(--clay-500);border-bottom-color:var(--clay-500);}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px;}
.hero-stats li{display:flex;flex-direction:column;gap:2px;}
.hero-stats strong{font-size:26px;font-weight:700;color:var(--ink-900);font-variant-numeric:tabular-nums;font-family:var(--font-sans);}
.hero-stats span{font-size:13px;color:var(--stone-500);}
.hero-visual{position:relative;margin-top:8px;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:18px;border:1px solid var(--line);
  background:#EFEDE7;box-shadow:var(--shadow-2);
}
.hero-visual::after{
  content:"";position:absolute;inset:0;border-radius:18px;
  background:linear-gradient(200deg,rgba(15,42,37,.22),rgba(15,42,37,0) 62%);pointer-events:none;
}
.float-card{
  position:absolute;left:-16px;bottom:26px;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:16px 20px;box-shadow:var(--shadow-2);min-width:190px;
}
.float-card strong{display:block;font-size:24px;font-weight:700;color:var(--ink-700);font-variant-numeric:tabular-nums;}
.float-card span{font-size:12.5px;color:var(--stone-500);}
@media screen and (max-width:1023px){
  .hero{padding:56px 0 48px;}
  .hero-sub{font-size:17px;}
  .hero-visual{margin-top:36px;}
  .float-card{left:14px;bottom:14px;}
}
@media screen and (max-width:639px){
  .hero h1{font-size:30px;}
  .hero-stats{gap:22px;}
  .hero-stats strong{font-size:22px;}
  .hero-actions{gap:14px;}
}

/* ---------- 信任窄带 ---------- */
.trust-strip{padding:22px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--sand-50);}
.trust-strip ul{display:flex;flex-wrap:wrap;align-items:center;gap:12px 30px;opacity:.72;}
.trust-strip li{font-size:13px;color:var(--stone-500);letter-spacing:.06em;}
.trust-strip li::before{content:"";display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--jade-500);margin-right:9px;vertical-align:middle;}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;}
.section-white{background:var(--paper);}
.section-sand{background:var(--sand-50);}
.section-ink{background:var(--ink-900);color:#fff;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:44px;}
.section-head h2{font-size:clamp(26px,3vw,36px);}
.section-head p{font-size:14.5px;color:var(--stone-500);margin-top:10px;max-width:620px;line-height:1.75;}
.section-ink .section-head h2{color:#fff;}
.section-ink .section-head p{color:rgba(255,255,255,.72);}
.section-head .link-arrow{flex:0 0 auto;}
@media screen and (max-width:1023px){.section{padding:72px 0;}}
@media screen and (max-width:639px){.section{padding:56px 0;}.section-head{margin-bottom:30px;}}

/* ---------- 指标看板 ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.metric{padding:6px 26px;border-left:3px solid var(--jade-100);}
.metric:first-child{padding-left:0;border-left:0;}
.metric strong{display:block;font-size:clamp(44px,4.6vw,68px);font-weight:700;line-height:1.05;color:var(--ink-900);font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.metric strong small{font-size:17px;font-weight:600;color:var(--stone-500);margin-left:4px;letter-spacing:0;}
.metric p{margin-top:10px;font-size:14px;color:var(--stone-500);line-height:1.6;}
.metrics-note{margin-top:34px;padding-top:18px;border-top:1px solid var(--line);font-size:12.5px;color:var(--stone-500);}
@media screen and (max-width:1023px){
  .metrics{grid-template-columns:repeat(2,1fr);gap:28px 0;}
  .metric{padding:0 18px;}
  .metric:nth-child(odd){padding-left:0;border-left:0;}
}
@media screen and (max-width:639px){
  .metric strong{font-size:40px;}
}

/* ---------- 服务矩阵 Bento ---------- */
.bento-row{display:flex;flex-wrap:wrap;}
.bento-row>.cell{display:flex;margin-bottom:24px;}
.bento-lg{
  position:relative;display:block;width:100%;min-height:420px;border-radius:var(--radius-card);
  overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.bento-lg img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.bento-lg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,42,37,.42),rgba(15,42,37,.82));}
.bento-lg-inner{position:relative;z-index:2;display:flex;flex-direction:column;justify-content:flex-end;height:100%;padding:34px;color:#fff;}
.bento-lg-inner .tag-badge{background:rgba(255,255,255,.16);color:#fff;}
.bento-lg-inner h3{color:#fff;font-size:26px;margin:16px 0 12px;}
.bento-lg-inner p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.82);max-width:440px;}
.bento-lg-inner .link-arrow{color:#fff;border-bottom-color:rgba(255,255,255,.4);margin-top:20px;align-self:flex-start;}
.bento-lg:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.bento-lg:hover .link-arrow{border-bottom-color:#fff;color:#fff;}
.bento-right{display:grid;grid-template-columns:1fr 1fr;grid-auto-rows:1fr;gap:24px;width:100%;}
.bento-sm{
  display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;height:100%;
}
.bento-sm img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#EFEDE7;}
.bento-sm-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1 1 auto;}
.bento-sm h3{font-size:19px;margin-bottom:10px;}
.bento-sm p{font-size:14.5px;color:var(--stone-500);line-height:1.75;}
.bento-sm .link-arrow{margin-top:auto;padding-top:16px;font-size:14px;}
.bento-sm:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.bento-sm:hover .link-arrow{color:var(--clay-500);border-bottom-color:var(--clay-500);}
.tag-badge{
  display:inline-block;padding:4px 10px;border-radius:var(--radius-badge);background:var(--jade-100);
  color:var(--ink-700);font-size:12px;font-weight:600;letter-spacing:.03em;
}
@media screen and (max-width:1023px){
  .bento-lg{min-height:340px;}
  .bento-right{grid-template-columns:1fr;}
}
@media screen and (max-width:639px){
  .bento-lg-inner{padding:26px;}
  .bento-lg-inner h3{font-size:22px;}
}

/* ---------- 结果对比 ---------- */
.compare{border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);}
.compare-head{display:grid;grid-template-columns:1.1fr 1fr 1fr;background:var(--jade-100);}
.compare-head div{padding:18px 26px;font-size:14px;font-weight:600;color:var(--ink-700);}
.compare-head div:last-child{background:var(--ink-800);color:#fff;}
.compare-row{display:grid;grid-template-columns:1.1fr 1fr 1fr;border-top:1px solid var(--line);background:var(--paper);}
.compare-row>div{padding:20px 26px;font-size:15px;display:flex;align-items:center;min-height:64px;}
.compare-row .row-name{color:var(--stone-900);font-weight:600;}
.compare-row .row-plain{color:var(--stone-500);font-size:14.5px;}
.compare-row .row-good{background:var(--ink-800);color:#fff;font-weight:600;font-variant-numeric:tabular-nums;}
.compare-bar{display:block;width:100%;max-width:130px;height:6px;border-radius:var(--radius-pill);background:rgba(255,255,255,.22);margin-right:12px;overflow:hidden;}
.compare-bar i{display:block;height:100%;width:0;border-radius:var(--radius-pill);background:var(--clay-500);transition:width 1s cubic-bezier(.22,.61,.36,1);}
.compare-row.is-in .compare-bar i{width:var(--bar,70%);}
@media screen and (max-width:900px){
  .compare-head{display:none;}
  .compare-row{grid-template-columns:1fr;padding:18px 0;}
  .compare-row>div{padding:8px 22px;min-height:auto;}
  .compare-row .row-name{font-family:var(--font-serif);font-size:16px;padding-bottom:12px;}
  .compare-row .row-good{background:var(--ink-800);border-radius:10px;margin:6px 16px 0;padding:12px 16px;}
}

/* ---------- 资讯列表 ---------- */
.news-lead{
  display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);height:100%;
  transition:transform .25s ease,box-shadow .25s ease;
}
.news-lead:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.news-lead-cover{display:block;overflow:hidden;}
.news-lead-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#EFEDE7;transition:transform .4s ease;}
.news-lead:hover .news-lead-cover img{transform:scale(1.03);}
.news-lead-body{padding:26px 28px 30px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-lead h3{font-size:23px;margin:14px 0 12px;line-height:1.4;}
.news-lead h3 a:hover{color:var(--ink-700);}
.news-lead p{font-size:15px;color:var(--stone-500);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{margin-top:auto;padding-top:18px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--stone-500);}
.news-list{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);}
.news-list li{border-bottom:1px solid var(--line);}
.news-list li:last-child{border-bottom:0;}
.news-list a{display:flex;align-items:center;gap:16px;padding:20px 26px;transition:background-color .2s ease;}
.news-list a:hover{background:var(--jade-100);}
.news-list .news-pill{flex:0 0 auto;padding:3px 10px;border-radius:var(--radius-badge);background:var(--jade-100);color:var(--ink-700);font-size:12px;font-weight:600;}
.news-list a:hover .news-pill{background:#fff;}
.news-list .news-title{flex:1 1 auto;font-size:15.5px;color:var(--stone-900);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-list a:hover .news-title{color:var(--ink-700);}
.news-list .news-date{flex:0 0 auto;font-size:12.5px;color:var(--stone-500);font-variant-numeric:tabular-nums;}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);min-height:240px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:var(--paper);
}
.empty-state svg{width:54px;height:54px;stroke:var(--line);fill:none;stroke-width:1.6;}
.empty-state p{font-size:15px;color:var(--stone-500);}
.empty-state .link-arrow{font-size:14px;}
@media screen and (max-width:1023px){
  .news-lead{margin-bottom:26px;}
  .news-list a{padding:16px 20px;gap:12px;}
}

/* ---------- FAQ ---------- */
.faq-wrap .accordion{border:0;background:transparent;margin:0;border-radius:0;}
.faq-wrap .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;}
.faq-wrap .accordion-item:first-child{border-top:1px solid var(--line);}
.faq-wrap .accordion-title{
  display:flex;align-items:center;gap:16px;border:0;background:transparent;
  padding:26px 0;font-family:var(--font-serif);font-size:18px;font-weight:600;color:var(--ink-900);
  transition:color .2s ease;
}
.faq-wrap .accordion-title::before{
  content:"+";flex:0 0 auto;order:0;width:22px;height:22px;line-height:20px;text-align:center;
  border-radius:50%;background:var(--jade-100);color:var(--ink-700);font-size:16px;font-family:var(--font-sans);
  margin:0;position:static;transition:transform .3s ease,background-color .2s ease;
}
.faq-wrap .accordion-title:hover{color:var(--ink-700);}
.faq-wrap .accordion-title:hover::before{background:var(--ink-700);color:#fff;}
.faq-wrap .accordion-title[aria-expanded="true"]::before{transform:rotate(45deg);background:var(--clay-500);color:#fff;}
.faq-wrap .accordion-content{padding:0 0 26px 38px;border:0;background:transparent;color:var(--stone-500);font-size:15px;line-height:1.85;}
.faq-wrap .accordion-content p+p{margin-top:12px;}
.faq-aside{position:sticky;top:150px;}
.faq-aside .card-note{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-1);}
.faq-aside .card-note h3{font-size:20px;margin-bottom:12px;}
.faq-aside .card-note p{font-size:14.5px;color:var(--stone-500);line-height:1.8;}
.faq-aside .card-note .btn{margin-top:20px;width:100%;}
@media screen and (max-width:639px){
  .faq-wrap .accordion-title{font-size:16.5px;padding:22px 0;}
  .faq-wrap .accordion-content{padding-left:0;}
}

/* ---------- 转化表单 ---------- */
.cta-section{
  position:relative;background:var(--ink-900);color:#fff;padding:96px 0;overflow:hidden;
}
.cta-section::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;opacity:.16;
}
.cta-section::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:56px 56px;
}
.cta-section .grid-container{position:relative;z-index:2;}
.cta-copy h2{color:#fff;font-size:clamp(26px,3vw,36px);margin-bottom:16px;}
.cta-copy p{color:rgba(255,255,255,.76);font-size:15.5px;line-height:1.85;max-width:420px;}
.cta-points{margin-top:26px;}
.cta-points li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.86);padding:9px 0;}
.cta-points li::before{content:"";flex:0 0 auto;width:16px;height:16px;margin-top:5px;border-radius:50%;background:rgba(217,113,79,.9);}
.form-card{background:var(--paper);border-radius:16px;padding:32px;box-shadow:0 30px 60px -34px rgba(0,0,0,.55);}
.form-card h3{font-size:20px;margin-bottom:6px;}
.form-card .form-hint{font-size:13.5px;color:var(--stone-500);margin-bottom:22px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-900);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;margin:0;border:1px solid var(--line);border-radius:10px;background:#fff;
  height:46px;padding:0 14px;font-size:15px;color:var(--stone-900);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:#A7ADA9;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--ink-700);box-shadow:0 0 0 3px rgba(221,232,227,.95);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--clay-500);}
.field .field-error{display:none;font-size:12.5px;color:var(--clay-500);margin-top:6px;}
.field.has-error .field-error{display:block;}
.form-privacy{font-size:12px;color:var(--stone-500);margin-top:14px;line-height:1.7;}
.form-card .btn{width:100%;margin-top:6px;}
@media screen and (max-width:1023px){
  .cta-section{padding:72px 0;}
  .cta-copy{margin-bottom:36px;}
}
@media screen and (max-width:639px){
  .cta-section{padding:56px 0;}
  .form-card{padding:24px;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--sand-50);color:var(--ink-900);border-top:1px solid var(--line);padding:64px 0 26px;}
.footer-brand p{font-size:14px;color:var(--stone-500);line-height:1.85;margin-top:16px;max-width:330px;}
.footer-brand .footer-contact{margin-top:16px;font-size:13.5px;color:var(--stone-500);}
.footer-col h4{font-family:var(--font-sans);font-size:14px;font-weight:700;color:var(--ink-900);margin-bottom:16px;letter-spacing:.02em;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:13.5px;color:var(--stone-500);}
.footer-col a:hover{color:var(--ink-700);text-decoration:underline;}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--stone-500);
}
.footer-bottom a{color:var(--stone-500);}
.footer-bottom a:hover{color:var(--ink-700);text-decoration:underline;}
@media screen and (max-width:1023px){
  .footer-brand{margin-bottom:34px;}
  .footer-col{margin-bottom:26px;}
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s cubic-bezier(.22,.61,.36,1),transform .42s cubic-bezier(.22,.61,.36,1);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  .compare-bar i{transition:none;}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}
@media screen and (max-width:860px){
  .search-box{display:none;}
  .menu-toggle{display:inline-flex;}
  .nav-actions .btn{display:none;}
  .brand-text{font-size:18px;}
}

/* roulang page: category1 */
:root{
  --ink-900:#0F2A25;
  --ink-800:#143C34;
  --ink-700:#1B5147;
  --jade-500:#2E7967;
  --clay-500:#D9714F;
  --clay-600:#C25A38;
  --sand-50:#FAF8F4;
  --paper:#FFFFFF;
  --jade-100:#DDE8E3;
  --stone-900:#2A2E2C;
  --stone-500:#6E7672;
  --line:#E4E0D8;

  --radius-card:14px;
  --radius-img:12px;
  --radius-badge:6px;
  --radius-pill:999px;

  --shadow-card:0 1px 0 rgba(15,42,37,.06);
  --shadow-hover:0 18px 40px -24px rgba(15,42,37,.28);

  --space-1:8px;
  --space-2:16px;
  --space-3:24px;
  --space-4:32px;
  --space-5:48px;
  --space-6:64px;
  --space-7:96px;

  --nav-top-h:72px;
  --nav-bottom-h:52px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:132px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--sand-50);
  color:var(--stone-900);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  font-weight:600;
  line-height:1.25;
  letter-spacing:-0.01em;
  color:var(--ink-900);
  margin:0;
}
p{margin:0 0 1em}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink-700);text-decoration:none;transition:color .22s ease,border-color .22s ease}
a:hover{color:var(--jade-500)}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}
input,select,textarea{font-family:inherit;font-size:16px;color:var(--stone-900)}
:focus-visible{outline:2px solid var(--ink-700);outline-offset:2px;border-radius:4px}

/* ---------- Foundation 覆盖 ---------- */
.grid-container{
  max-width:1200px;
  padding-left:24px;
  padding-right:24px;
  margin-left:auto;
  margin-right:auto;
}
@media (min-width:1440px){
  .grid-container{max-width:1280px;padding-left:40px;padding-right:40px}
}
.grid-x{margin-left:-12px;margin-right:-12px}
.grid-x > .cell{padding-left:12px;padding-right:12px}
.button,a.button{
  display:inline-flex;align-items:center;justify-content:center;
  font-family:inherit;font-size:15px;font-weight:500;line-height:1;
  padding:14px 26px;border-radius:var(--radius-pill);
  background:var(--ink-700);color:#fff;border:1px solid var(--ink-700);
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease,color .22s ease,border-color .22s ease;
  margin:0;
}
.button:hover,a.button:hover{background:var(--jade-500);border-color:var(--jade-500);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.button:active,a.button:active{transform:translateY(1px)}
.tabs,.tabs-content,.accordion{border:0;background:transparent}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:500;line-height:1;
  padding:14px 26px;border-radius:var(--radius-pill);
  border:1px solid transparent;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn:active{transform:translateY(1px)}
.btn-clay{background:var(--clay-500);color:#fff;border-color:var(--clay-500);box-shadow:0 10px 24px -18px rgba(217,113,79,.9)}
.btn-clay:hover{background:var(--clay-600);border-color:var(--clay-600);color:#fff;transform:translateY(-1px)}
.btn-ink{background:var(--ink-700);color:#fff;border-color:var(--ink-700)}
.btn-ink:hover{background:var(--jade-500);border-color:var(--jade-500);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink-700);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--ink-700);color:var(--ink-700);background:var(--jade-100)}
.btn-sm{padding:10px 20px;font-size:14px}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:500;letter-spacing:.08em;
  color:var(--ink-700);background:var(--jade-100);
  padding:6px 14px;border-radius:var(--radius-pill);
}
.badge{
  display:inline-block;font-size:12px;line-height:1.6;
  padding:2px 10px;border-radius:var(--radius-badge);
  background:var(--jade-100);color:var(--ink-700);
}
.meta{font-size:13px;color:var(--stone-500)}
.num{font-variant-numeric:tabular-nums;font-weight:700}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:500;color:var(--ink-700);
}
.link-arrow svg{transition:transform .22s ease}
.link-arrow:hover svg{transform:translateX(4px)}

.section{padding:96px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{font-size:34px}
.section-head .sub{font-size:14px;color:var(--stone-500);margin-top:10px}
.bg-paper{background:var(--paper)}
.bg-ink{background:var(--ink-900);color:#fff}
.bg-ink h2,.bg-ink h3{color:#fff}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(250,248,244,.94);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:background .25s ease,border-color .25s ease,box-shadow .25s ease}
.site-header.is-scrolled{background:var(--paper);border-bottom-color:var(--line);box-shadow:0 8px 24px -22px rgba(15,42,37,.5)}
.nav-top{border-bottom:1px solid transparent}
.site-header.is-scrolled .nav-top{border-bottom-color:var(--line)}
.nav-top-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--nav-top-h)}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900);font-weight:600}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--ink-700);display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto}
.brand-mark svg{width:19px;height:19px;fill:none;stroke:#fff;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.brand-text{font-family:"Noto Serif SC","Source Han Serif SC",serif;font-size:19px;letter-spacing:-.01em}
.nav-actions{display:flex;align-items:center;gap:14px}
.nav-search{display:flex;align-items:center;gap:8px;width:240px;height:42px;padding:0 16px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-pill);transition:border-color .22s ease,box-shadow .22s ease}
.nav-search:focus-within{border-color:var(--ink-700);box-shadow:0 0 0 3px rgba(221,232,227,.9)}
.nav-search svg{width:16px;height:16px;stroke:var(--stone-500);fill:none;stroke-width:1.9;flex:0 0 auto}
.nav-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px}
.nav-search input::placeholder{color:#9AA29D}
.icon-btn{width:42px;height:42px;border-radius:var(--radius-pill);border:1px solid var(--line);display:none;align-items:center;justify-content:center;background:var(--paper);transition:border-color .22s ease,background .22s ease}
.icon-btn:hover{border-color:var(--ink-700);background:var(--jade-100)}
.icon-btn svg{width:18px;height:18px;stroke:var(--ink-700);fill:none;stroke-width:1.9;stroke-linecap:round}

.nav-bottom{background:transparent}
.nav-bottom-inner{height:var(--nav-bottom-h);display:flex;align-items:center;position:relative}
.channel-tabs{display:flex;align-items:center;gap:8px;overflow-x:auto;scroll-snap-type:x proximity;padding:4px 2px;width:100%;scrollbar-width:none;-ms-overflow-style:none}
.channel-tabs::-webkit-scrollbar{display:none}
.channel-tabs li{scroll-snap-align:start;flex:0 0 auto}
.channel-tabs a{
  display:inline-block;padding:8px 18px;border-radius:var(--radius-pill);
  font-size:14px;color:var(--stone-900);white-space:nowrap;
  transition:background .22s ease,color .22s ease;
}
.channel-tabs a:hover{background:var(--jade-100);color:var(--ink-700)}
.channel-tabs a.is-active{background:var(--ink-700);color:#fff}
.nav-bottom-inner::after{
  content:"";position:absolute;right:0;top:0;bottom:0;width:36px;
  background:linear-gradient(90deg,rgba(250,248,244,0),rgba(250,248,244,.96));
  pointer-events:none;
}

/* 移动抽屉 & 搜索浮层 */
.mobile-drawer{
  position:fixed;inset:0 0 0 auto;width:min(320px,84vw);background:var(--paper);
  transform:translateX(102%);transition:transform .32s cubic-bezier(.22,.61,.36,1);
  z-index:90;padding:28px 24px;box-shadow:-20px 0 50px -30px rgba(15,42,37,.5);
  display:flex;flex-direction:column;gap:8px;
}
.mobile-drawer.is-open{transform:translateX(0)}
.mobile-drawer a{padding:12px 4px;font-size:16px;border-bottom:1px solid var(--line);color:var(--ink-900)}
.mobile-drawer a.is-active{color:var(--clay-500)}
.drawer-close{align-self:flex-end;font-size:14px;color:var(--stone-500);padding:6px 0 14px}
.drawer-mask{position:fixed;inset:0;background:rgba(15,42,37,.4);opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.search-overlay{
  position:fixed;left:0;right:0;top:0;background:var(--paper);z-index:95;
  padding:24px 0;border-bottom:1px solid var(--line);
  transform:translateY(-102%);transition:transform .32s cubic-bezier(.22,.61,.36,1);
}
.search-overlay.is-open{transform:translateY(0)}
.search-overlay form{display:flex;gap:12px;align-items:center}
.search-overlay input{flex:1;height:48px;border:1px solid var(--line);border-radius:var(--radius-pill);padding:0 20px;outline:none}
.search-overlay input:focus{border-color:var(--ink-700);box-shadow:0 0 0 3px rgba(221,232,227,.9)}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;
  padding:64px 0 56px;
  background:
    linear-gradient(180deg,rgba(221,232,227,.75) 0%,rgba(250,248,244,0) 100%),
    var(--sand-50);
  overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,121,103,.16),rgba(250,248,244,0) 68%);
  pointer-events:none;
}
.cat-hero-inner{position:relative;max-width:820px}
.breadcrumb{font-size:13px;color:var(--stone-500);margin-bottom:18px}
.breadcrumb span{color:var(--ink-900)}
.cat-hero h1{font-size:clamp(30px,4vw,46px);margin:16px 0 18px}
.cat-hero-lead{font-size:18px;color:var(--stone-500);max-width:680px;margin-bottom:24px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tags li{font-size:13px;padding:6px 14px;border-radius:var(--radius-pill);background:var(--paper);border:1px solid var(--line);color:var(--ink-700)}

/* 数据条 */
.cat-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:48px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card)}
.cat-stats .stat{padding:26px 28px;border-left:3px solid var(--jade-100)}
.cat-stats .stat + .stat{border-top:0}
.cat-stats .stat-num{font-size:44px;line-height:1;color:var(--ink-900)}
.cat-stats .stat-unit{font-size:14px;color:var(--stone-500);margin-left:4px}
.cat-stats .stat-label{font-size:14px;color:var(--stone-500);margin-top:10px}

/* ---------- 主体两栏（左粘性目录 + 右内容） ---------- */
.layout-wrap{display:grid;grid-template-columns:250px minmax(0,1fr);gap:56px;align-items:start;padding:72px 0 96px}
.side-toc{position:sticky;top:148px}
.side-toc h2{font-size:13px;letter-spacing:.1em;color:var(--stone-500);font-family:inherit;font-weight:600;text-transform:uppercase;margin-bottom:16px}
.side-toc ul{border-left:1px solid var(--line)}
.side-toc a{
  display:block;padding:10px 0 10px 18px;font-size:15px;color:var(--stone-500);
  border-left:2px solid transparent;margin-left:-1px;transition:color .22s ease,border-color .22s ease,background .22s ease;
}
.side-toc a:hover{color:var(--ink-700);background:var(--jade-100)}
.side-toc a.is-current{color:var(--ink-900);border-left-color:var(--ink-700);font-weight:600}
.side-card{margin-top:28px;padding:22px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card)}
.side-card h3{font-size:17px;margin-bottom:8px}
.side-card p{font-size:14px;color:var(--stone-500);margin-bottom:14px}

.content-block + .content-block{margin-top:64px;scroll-margin-top:150px}
.content-block h2{font-size:28px;margin-bottom:8px}
.content-block .block-lead{font-size:15px;color:var(--stone-500);margin-bottom:22px}
.content-block p{font-size:16.5px}
.content-block h3{font-size:19px;margin:26px 0 10px}

.figure{border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);background:var(--jade-100);margin:24px 0 10px;aspect-ratio:16/9}
.figure img{width:100%;height:100%;object-fit:cover}
.figure-cap{font-size:13px;color:var(--stone-500);text-align:center}

.feature-list{margin-top:20px;display:grid;gap:12px}
.feature-list li{
  display:flex;gap:14px;padding:18px 20px;background:var(--paper);
  border:1px solid var(--line);border-radius:var(--radius-card);
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease;
}
.feature-list li:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);background:var(--paper)}
.feature-list .fi{width:34px;height:34px;flex:0 0 auto;border-radius:9px;background:var(--jade-100);display:flex;align-items:center;justify-content:center}
.feature-list .fi svg{width:17px;height:17px;stroke:var(--ink-700);fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.feature-list strong{display:block;font-size:16px;color:var(--ink-900);font-weight:600;margin-bottom:4px}
.feature-list span{font-size:14.5px;color:var(--stone-500)}

/* ---------- 条目列表 ---------- */
.entry-list{display:grid;gap:20px;margin-top:8px}
.entry{
  display:grid;grid-template-columns:220px minmax(0,1fr);gap:22px;
  padding:20px;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  transition:transform .22s ease,box-shadow .22s ease;
}
.entry:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.entry-thumb{border-radius:var(--radius-img);overflow:hidden;aspect-ratio:16/9;background:var(--jade-100)}
.entry-thumb img{width:100%;height:100%;object-fit:cover}
.entry h3{font-size:20px;margin:10px 0 8px}
.entry h3 a{color:var(--ink-900)}
.entry h3 a:hover{color:var(--jade-500)}
.entry p{font-size:15px;color:var(--stone-500);margin-bottom:12px}
.entry-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:24px 0;text-align:left;background:transparent;
}
.faq-q h4{font-size:18px;font-family:"Noto Serif SC","Source Han Serif SC",serif;font-weight:600;color:var(--ink-900);line-height:1.5;margin:0}
.faq-q .plus{width:22px;height:22px;flex:0 0 auto;margin-top:3px;position:relative}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink-700);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .3s ease,opacity .3s ease;
}
.faq-q .plus::before{width:14px;height:2px}
.faq-q .plus::after{width:2px;height:14px}
.faq-item.is-open .plus::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-item.is-open .plus::before{transform:translate(-50%,-50%) rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 44px 26px 0;font-size:15px;color:var(--stone-500);line-height:1.85;margin:0}

/* ---------- CTA 条幅 ---------- */
.cta-banner{padding:0 0 96px}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  background:var(--ink-900);color:#fff;border-radius:18px;padding:44px 48px;
  position:relative;overflow:hidden;
  background-image:linear-gradient(rgba(15,42,37,.92),rgba(15,42,37,.92)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.cta-inner h2{color:#fff;font-size:28px;margin-bottom:10px}
.cta-inner p{color:rgba(255,255,255,.78);font-size:15px;margin:0;max-width:560px}
.cta-inner .btn-clay{box-shadow:0 14px 30px -18px rgba(217,113,79,.95)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--sand-50);border-top:1px solid var(--line);padding:72px 0 0}
.site-footer .grid-x{row-gap:36px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:14px;color:var(--stone-500);max-width:340px}
.footer-contact{font-size:13.5px;color:var(--stone-500);line-height:1.9}
.footer-col h4{font-size:14px;letter-spacing:.04em;color:var(--ink-900);margin-bottom:16px;font-family:inherit;font-weight:600}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--stone-500)}
.footer-col a:hover{color:var(--ink-700);text-decoration:underline}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--stone-500);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s cubic-bezier(.22,.61,.36,1),transform .42s cubic-bezier(.22,.61,.36,1)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none !important}
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-search{display:none}
  .icon-btn{display:inline-flex}
  .layout-wrap{grid-template-columns:1fr;gap:36px;padding:56px 0 72px}
  .side-toc{position:static}
  .side-toc ul{border-left:0;display:flex;flex-wrap:wrap;gap:8px}
  .side-toc a{padding:8px 14px;border:1px solid var(--line);border-radius:var(--radius-pill);margin:0}
  .side-toc a.is-current{background:var(--ink-700);color:#fff;border-color:var(--ink-700)}
  .section{padding:72px 0}
  .section-head h2{font-size:28px}
  .cat-stats{grid-template-columns:repeat(3,1fr)}
  .entry{grid-template-columns:180px minmax(0,1fr)}
}
@media (max-width:767px){
  :root{--nav-top-h:60px;--nav-bottom-h:48px}
  html{scroll-padding-top:112px}
  .nav-cta{display:none}
  .brand-text{font-size:17px}
  .section{padding:56px 0}
  .section-head h2{font-size:26px}
  .cat-hero{padding:40px 0 36px}
  .cat-hero-lead{font-size:16px}
  .cat-stats{grid-template-columns:1fr 1fr;margin-top:32px}
  .cat-stats .stat{padding:20px}
  .cat-stats .stat-num{font-size:34px}
  .content-block h2{font-size:23px}
  .entry{grid-template-columns:1fr;gap:16px}
  .entry-thumb{aspect-ratio:16/9}
  .faq-q h4{font-size:16.5px}
  .faq-a p{padding-right:0}
  .cta-inner{padding:32px 24px;border-radius:16px}
  .cta-inner h2{font-size:23px}
  .cta-inner .btn-clay{width:100%}
  .site-footer{padding:56px 0 0}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:519px){
  .grid-container{padding-left:18px;padding-right:18px}
  .cat-stats{grid-template-columns:1fr}
  .cat-hero h1{font-size:28px}
  .breadcrumb{font-size:12.5px}
}

/* roulang page: article */
/* ============ 设计变量 ============ */
:root{
  --ink-900:#0F2A25;
  --ink-800:#143C34;
  --ink-700:#1B5147;
  --jade-500:#2E7967;
  --jade-100:#DDE8E3;
  --clay-500:#D9714F;
  --clay-600:#C25A38;
  --sand-50:#FAF8F4;
  --paper:#FFFFFF;
  --stone-900:#2A2E2C;
  --stone-500:#6E7672;
  --line:#E4E0D8;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --r-card:14px;
  --r-img:12px;
  --r-badge:6px;
  --r-pill:999px;
  --sh-card:0 1px 0 rgba(15,42,37,.06);
  --sh-hover:0 18px 40px -24px rgba(15,42,37,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-top:72px;
  --nav-bottom:52px;
  --nav-h:124px;
  --global-radius:14px;
}
/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:140px}
body{
  margin:0;
  background:var(--sand-50);
  color:var(--stone-900);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink-700);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--jade-500)}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
h1,h2,h3,h4,h5{margin:0;font-weight:600;color:var(--ink-900)}
p{margin:0 0 1em}
:focus-visible{outline:2px solid var(--ink-700);outline-offset:2px;border-radius:4px}
::selection{background:var(--jade-100);color:var(--ink-900)}
/* ============ Foundation 覆盖 ============ */
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto;width:100%}
@media (min-width:1440px){
  .grid-container{max-width:1280px;padding-left:40px;padding-right:40px}
}
.button,.button.primary,.button.secondary{
  font-family:var(--sans);
  border-radius:var(--r-pill);
  background:var(--ink-700);
  color:#fff;
  padding:12px 26px;
  font-size:15px;
  font-weight:500;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.button:hover{background:var(--jade-500);color:#fff}
.tabs-title>a{color:var(--ink-700);padding:.6rem 1.1rem;font-size:15px}
.tabs-title>a:focus,.tabs-title>a[aria-selected="true"]{background:var(--ink-700);color:#fff;border-radius:var(--r-pill)}
.accordion{border:0;background:transparent}
.accordion-title{border:0;background:transparent}
.accordion-content{border:0;background:transparent;color:var(--stone-500)}
input[type="text"],input[type="search"],input[type="email"],input[type="tel"],select,textarea{
  border-radius:10px;
  border:1px solid var(--line);
  box-shadow:none;
  height:auto;
}
/* ============ 容器与通用组件 ============ */
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900)}
.brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;background:var(--ink-700);display:inline-flex;align-items:center;justify-content:center}
.brand-mark svg{width:19px;height:19px;fill:none;stroke:#fff;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.brand-text{font-family:var(--serif);font-size:20px;font-weight:600;letter-spacing:-.01em;color:var(--ink-900)}
.badge{display:inline-block;background:var(--jade-100);color:var(--ink-700);font-size:12px;line-height:1.6;padding:4px 10px;border-radius:var(--r-badge);letter-spacing:.02em}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-pill);padding:12px 26px;font-size:15px;font-weight:500;line-height:1.2;border:1px solid transparent;cursor:pointer;text-align:center;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease)}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--clay-500);color:#fff;box-shadow:0 10px 24px -14px rgba(217,113,79,.9)}
.btn-primary:hover{background:var(--clay-600);color:#fff;box-shadow:0 14px 28px -14px rgba(194,90,56,.9)}
.btn-outline{background:transparent;color:var(--ink-700);border-color:var(--ink-700)}
.btn-outline:hover{background:var(--ink-700);color:#fff}
.btn-quiet{background:var(--jade-100);color:var(--ink-700)}
.btn-quiet:hover{background:#cfe0d9;color:var(--ink-900)}
.icon-btn{width:40px;height:40px;border-radius:var(--r-pill);display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);background:var(--paper);color:var(--ink-700);transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease)}
.icon-btn:hover{background:var(--jade-100);border-color:var(--jade-100);color:var(--ink-900)}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.reveal{opacity:0;transform:translateY(12px)}
.reveal.is-visible{opacity:1;transform:none;transition:opacity .42s var(--ease),transform .42s var(--ease)}
/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(250,248,244,.94);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:background .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease)}
.site-header.is-scrolled{background:rgba(255,255,255,.97);border-bottom-color:var(--line);box-shadow:0 8px 24px -22px rgba(15,42,37,.5)}
.nav-top{height:var(--nav-top)}
.nav-top-inner{height:100%;display:flex;align-items:center;gap:14px}
.nav-search{margin-left:auto;position:relative;display:flex;align-items:center}
.nav-search input[type="search"]{
  width:250px;height:42px;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--paper);
  padding:0 44px 0 18px;font-size:14px;color:var(--stone-900);margin:0;transition:border-color .2s var(--ease),box-shadow .2s var(--ease),width .25s var(--ease);
}
.nav-search input[type="search"]::placeholder{color:#A6ADA8}
.nav-search input[type="search"]:focus{outline:none;border-color:var(--ink-700);box-shadow:0 0 0 3px rgba(27,81,71,.12)}
.nav-search button{position:absolute;right:6px;top:50%;transform:translateY(-50%);width:32px;height:32px;border-radius:var(--r-pill);display:inline-flex;align-items:center;justify-content:center;color:var(--ink-700);transition:background .2s var(--ease)}
.nav-search button:hover{background:var(--jade-100)}
.nav-search svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}
.nav-cta{padding:11px 24px;font-size:15px}
@media (max-width:1023px){
  .nav-search{display:none}
  .nav-search-btn{margin-left:auto;display:inline-flex}
  .nav-cta{display:none}
}
@media (min-width:1024px){
  .nav-search-btn{display:none}
  .nav-menu-btn{display:none}
}
.nav-bottom{height:var(--nav-bottom);border-top:1px solid rgba(228,224,216,.7);background:transparent;overflow:hidden}
.site-header.is-scrolled .nav-bottom{border-top-color:var(--line)}
.nav-bottom-inner{height:var(--nav-bottom);display:flex;align-items:center;overflow:hidden}
.channel-tabs{display:flex;align-items:center;gap:8px;height:100%;overflow-x:auto;scroll-snap-type:x proximity;-ms-overflow-style:none;scrollbar-width:none;width:100%}
.channel-tabs::-webkit-scrollbar{display:none}
.channel-tabs li{flex:0 0 auto;scroll-snap-align:start}
.channel-tabs a{display:inline-flex;align-items:center;height:36px;padding:0 18px;border-radius:var(--r-pill);font-size:15px;color:var(--stone-900);white-space:nowrap;transition:background .2s var(--ease),color .2s var(--ease)}
.channel-tabs a:hover{background:var(--jade-100);color:var(--ink-700)}
.channel-tabs a.is-active{background:var(--ink-700);color:#fff}
.channel-tabs a.is-active:hover{background:var(--ink-800);color:#fff}
@media (max-width:767px){
  .channel-tabs{-webkit-mask-image:linear-gradient(to right,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);mask-image:linear-gradient(to right,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%)}
}
/* ============ 抽屉与搜索浮层 ============ */
.drawer-mask{position:fixed;inset:0;background:rgba(15,42,37,.44);opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);background:var(--paper);z-index:90;transform:translateX(102%);transition:transform .32s var(--ease);padding:26px 22px 32px;display:flex;flex-direction:column;gap:20px;box-shadow:-24px 0 60px -34px rgba(15,42,37,.6);overflow-y:auto}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-title{font-size:13px;letter-spacing:.1em;color:var(--stone-500)}
.drawer-nav a{display:block;padding:13px 0;border-bottom:1px solid var(--line);font-size:16px;color:var(--stone-900)}
.drawer-nav a:hover{color:var(--ink-700);padding-left:6px}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px}
.search-overlay{position:fixed;top:0;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:18px 0;z-index:95;transform:translateY(-104%);transition:transform .3s var(--ease);box-shadow:0 20px 40px -34px rgba(15,42,37,.6)}
.search-overlay.is-open{transform:translateY(0)}
.search-overlay-inner{display:flex;align-items:center;gap:12px}
.search-overlay input{flex:1;height:46px;border-radius:var(--r-pill);border:1px solid var(--line);padding:0 20px;margin:0;background:var(--sand-50)}
.search-overlay input:focus{outline:none;border-color:var(--ink-700);box-shadow:0 0 0 3px rgba(27,81,71,.12)}
/* ============ 文章主体 ============ */
.article-main{padding:26px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--stone-500);margin:6px 0 22px;line-height:1.6}
.breadcrumb a{color:var(--stone-500)}
.breadcrumb a:hover{color:var(--ink-700);text-decoration:underline}
.breadcrumb .sep{color:#C6C2B8}
.breadcrumb .current{color:var(--ink-900);max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:52px;align-items:start}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 292px}
}
.article-panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-card);padding:clamp(22px,4vw,52px);min-width:0}
.article-head{padding-bottom:26px;border-bottom:1px solid var(--line);margin-bottom:34px}
.article-head h1{font-family:var(--serif);font-size:clamp(26px,3.4vw,38px);line-height:1.32;letter-spacing:-.01em;color:var(--ink-900);margin:16px 0 0;word-break:break-word}
.meta-line{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin-top:18px;font-size:13px;color:var(--stone-500)}
.meta-line .dot{color:#C6C2B8}
.article-body{font-size:17px;line-height:1.9;color:var(--stone-900);max-width:760px;word-break:break-word}
.article-body p{margin:0 0 1.2em}
.article-body h2{font-family:var(--serif);font-size:26px;line-height:1.38;color:var(--ink-900);margin:2.2em 0 .8em;padding-left:14px;border-left:3px solid var(--ink-700);scroll-margin-top:150px}
.article-body h3{font-family:var(--serif);font-size:19px;line-height:1.5;color:var(--ink-800);margin:1.8em 0 .6em}
.article-body h4{font-size:17px;color:var(--ink-800);margin:1.5em 0 .5em}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.3em}
.article-body ul{list-style:none}
.article-body ul li{position:relative;padding-left:16px;margin-bottom:.5em}
.article-body ul li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--clay-500)}
.article-body ol{list-style:decimal}
.article-body ol li{margin-bottom:.5em}
.article-body blockquote{margin:1.8em 0;padding:18px 24px;background:var(--jade-100);border-left:3px solid var(--clay-500);border-radius:0 var(--r-img) var(--r-img) 0;font-size:16px;line-height:1.85;color:var(--ink-800)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:1.6em auto;width:auto;max-width:100%;height:auto}
.article-body figure{margin:1.8em 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--stone-500);margin-top:10px}
.article-body a{color:var(--ink-700);border-bottom:1px dashed var(--ink-700)}
.article-body a:hover{color:var(--jade-500);border-bottom-style:solid;border-bottom-color:var(--jade-500)}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.article-body th{background:var(--jade-100);color:var(--ink-800);font-weight:600;text-align:left}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.article-body tr:hover td{background:#FCFBF8}
.article-body code{background:var(--sand-50);border:1px solid var(--line);border-radius:6px;padding:2px 6px;font-size:14px;color:var(--ink-800)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:42px;padding-top:26px;border-top:1px solid var(--line)}
.tag-pill{display:inline-flex;align-items:center;font-size:13px;padding:6px 15px;border-radius:var(--r-pill);border:1px solid var(--line);color:var(--stone-500);background:var(--sand-50);transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease)}
.tag-pill:hover{border-color:var(--jade-500);color:var(--ink-700);background:var(--jade-100)}
.article-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.empty-state{border:1px dashed var(--line);border-radius:var(--r-card);background:var(--sand-50);min-height:260px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;text-align:center;padding:36px 24px}
.empty-state svg{width:96px;height:64px;fill:none;stroke:#C6C2B8;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.empty-state h2{font-family:var(--serif);font-size:22px;color:var(--ink-900)}
.empty-state p{color:var(--stone-500);font-size:15px;margin:0;max-width:420px}
/* ============ 侧栏 ============ */
.article-aside{display:none;min-width:0}
@media (min-width:1024px){
  .article-aside{display:block}
}
.aside-inner{position:sticky;top:152px;display:flex;flex-direction:column;gap:22px}
.aside-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-card)}
.aside-card h4{font-size:12px;letter-spacing:.14em;color:var(--stone-500);font-weight:600;margin:0 0 14px;font-family:var(--sans);text-transform:uppercase}
.toc-list{display:flex;flex-direction:column;max-height:330px;overflow-y:auto}
.toc-list a{display:block;font-size:14px;line-height:1.55;color:var(--stone-500);padding:8px 12px;border-left:2px solid var(--line);transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease)}
.toc-list a:hover{color:var(--ink-700);background:var(--jade-100);border-left-color:var(--jade-500)}
.toc-list a.is-current{color:var(--ink-900);font-weight:500;background:var(--jade-100);border-left-color:var(--ink-700)}
.aside-links li+li{border-top:1px solid var(--line)}
.aside-links a{display:block;padding:11px 0;font-size:14px;line-height:1.6;color:var(--stone-900)}
.aside-links a:hover{color:var(--ink-700)}
.aside-links span{display:block;font-size:12px;color:var(--stone-500);margin-top:3px}
.aside-note{font-size:13px;color:var(--stone-500);line-height:1.75;margin:0}
/* ============ 相关推荐 ============ */
.related{margin-top:70px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-bottom:26px}
.section-head h2{font-family:var(--serif);font-size:clamp(22px,2.4vw,28px);color:var(--ink-900);line-height:1.3}
.section-head p{margin:6px 0 0;font-size:14px;color:var(--stone-500)}
.section-head .more{font-size:14px;color:var(--ink-700);display:inline-flex;align-items:center;gap:6px}
.section-head .more:hover{color:var(--jade-500)}
.rel-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:640px){.rel-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.rel-grid{grid-template-columns:repeat(3,1fr)}}
.rel-card{display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease)}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:#D8D3C8}
.rel-thumb{aspect-ratio:16/9;background:#EFEDE7;overflow:hidden}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-family:var(--serif);font-size:19px;line-height:1.45;color:var(--ink-900)}
.rel-body h3 a{color:var(--ink-900)}
.rel-body h3 a:hover{color:var(--ink-700)}
.rel-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:12px;color:var(--stone-500)}
.rel-empty{border:1px dashed var(--line);border-radius:var(--r-card);background:var(--paper);padding:36px;text-align:center;color:var(--stone-500);font-size:14px}
/* ============ 转化条 ============ */
.cta-band{position:relative;margin-top:70px;border-radius:var(--r-card);overflow:hidden;background:var(--ink-900);isolation:isolate}
.cta-band::before{content:"";position:absolute;inset:0;background-image:url(/assets/images/backpic/back-2.webp);background-size:cover;background-position:center;opacity:.28;z-index:-1}
.cta-inner{position:relative;padding:clamp(28px,4vw,48px);display:flex;flex-direction:column;gap:24px}
@media (min-width:900px){
  .cta-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:40px}
}
.cta-inner h2{font-family:var(--serif);font-size:clamp(22px,2.6vw,30px);color:#fff;line-height:1.35;margin:0 0 10px}
.cta-inner p{color:rgba(255,255,255,.76);font-size:15px;line-height:1.8;margin:0;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}
.btn-onDark{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-onDark:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
/* ============ 页脚 ============ */
.site-footer{background:#F3F0E9;border-top:1px solid var(--line);margin-top:80px;padding:64px 0 0;color:var(--stone-900)}
.site-footer .footer-brand{padding-bottom:28px}
.site-footer .footer-brand .brand{margin-bottom:16px}
.site-footer .footer-brand p{font-size:14px;line-height:1.85;color:var(--stone-500);margin:0 0 14px;max-width:380px}
.footer-contact{font-size:13px;color:var(--stone-500);line-height:1.9}
.footer-col{padding-bottom:28px}
.footer-col h4{font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--ink-900);margin:0 0 16px;font-family:var(--sans)}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--stone-500)}
.footer-col a:hover{color:var(--ink-700);text-decoration:underline}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;border-top:1px solid var(--line);margin-top:16px;padding:20px 0 30px;font-size:13px;color:var(--stone-500);line-height:1.7}
@media (max-width:639px){
  .article-main{padding-top:18px}
  .breadcrumb .current{max-width:46vw}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --ink-900:#0F2A25;
  --ink-800:#143C34;
  --ink-700:#1B5147;
  --jade-500:#2E7967;
  --jade-100:#DDE8E3;
  --clay-500:#D9714F;
  --clay-600:#C25A38;
  --sand-50:#FAF8F4;
  --paper:#FFFFFF;
  --stone-900:#2A2E2C;
  --stone-500:#6E7672;
  --line:#E4E0D8;
  --radius-card:14px;
  --radius-img:12px;
  --radius-badge:6px;
  --radius-pill:999px;
  --shadow-1:0 1px 0 rgba(15,42,37,.06);
  --shadow-2:0 18px 40px -24px rgba(15,42,37,.28);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --header-h:72px;
  --nav-h:52px;
  --header-total:124px;
  --section-y:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:140px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.8;
  color:var(--stone-900);
  background:var(--sand-50);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--ink-700);text-decoration:none;transition:color .2s ease,border-color .2s ease;}
a:hover{color:var(--jade-500);}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--ink-900);font-weight:700;letter-spacing:-0.01em;line-height:1.25;margin:0 0 16px;}
h1{font-size:clamp(30px,4vw,48px);}
h2{font-size:clamp(26px,2.4vw,36px);}
h3{font-size:22px;}
h4{font-size:19px;}
p{margin:0 0 16px;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--ink-700);outline-offset:2px;border-radius:4px;}

.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;}
@media (min-width:1440px){.grid-container{max-width:1280px;padding-left:40px;padding-right:40px;}}

/* ============ 顶部双层导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(250,248,244,.94);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{background:rgba(255,255,255,.96);border-bottom-color:var(--line);box-shadow:0 8px 24px -20px rgba(15,42,37,.35);}
.header-top-inner{display:flex;align-items:center;gap:24px;height:var(--header-h);}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900);flex:none;}
.brand:hover{color:var(--ink-900);}
.brand-mark{width:36px;height:36px;border-radius:10px;background:var(--ink-700);display:inline-flex;align-items:center;justify-content:center;flex:none;}
.brand-mark svg{width:20px;height:20px;fill:none;stroke:#FAF8F4;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{font-family:var(--font-serif);font-size:20px;font-weight:700;letter-spacing:-0.01em;white-space:nowrap;}
.header-search{flex:1;max-width:320px;display:flex;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-pill);padding:0 6px 0 16px;height:42px;transition:border-color .2s ease,box-shadow .2s ease;}
.header-search:focus-within{border-color:var(--ink-700);box-shadow:0 0 0 3px rgba(221,232,227,.9);}
.header-search input{flex:1;border:0;background:transparent;font-size:14px;color:var(--stone-900);height:100%;outline:none;}
.header-search input::placeholder{color:#9AA29D;}
.header-search button{border:0;background:var(--jade-100);color:var(--ink-700);width:32px;height:32px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background .2s ease,color .2s ease;}
.header-search button:hover{background:var(--ink-700);color:#fff;}
.header-search svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:500;line-height:1;
  padding:13px 26px;border-radius:var(--radius-pill);
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--clay-500);color:#fff;border-color:var(--clay-500);box-shadow:0 10px 22px -16px rgba(217,113,79,.9);}
.btn-primary:hover{background:var(--clay-600);border-color:var(--clay-600);color:#fff;transform:translateY(-1px);box-shadow:0 16px 30px -16px rgba(194,90,56,.85);}
.btn-ghost{background:transparent;color:var(--ink-700);border-color:var(--ink-700);}
.btn-ghost:hover{background:var(--ink-700);color:#fff;transform:translateY(-1px);}
.btn-light{background:var(--paper);color:var(--ink-900);border-color:var(--paper);}
.btn-light:hover{background:var(--jade-100);border-color:var(--jade-100);color:var(--ink-900);transform:translateY(-1px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.icon-btn{
  width:42px;height:42px;border-radius:50%;border:1px solid var(--line);background:var(--paper);
  display:none;align-items:center;justify-content:center;cursor:pointer;color:var(--ink-700);
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.icon-btn:hover{background:var(--jade-100);border-color:var(--jade-100);color:var(--ink-900);}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;}

/* 频道 Tabs */
.nav-bottom{background:var(--paper);border-bottom:1px solid var(--line);}
.nav-bottom-inner{height:var(--nav-h);display:flex;align-items:center;position:relative;}
.channel-tabs{
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;overflow-y:hidden;
  white-space:nowrap;-webkit-overflow-scrolling:touch;
  scroll-snap-type:x proximity;
  width:100%;
  padding:6px 0;
  scrollbar-width:none;
}
.channel-tabs::-webkit-scrollbar{display:none;}
.channel-tabs li{flex:none;scroll-snap-align:start;}
.tabs{background:transparent;border:0;margin:0;}
.channel-tabs .tabs-title{float:none;}
.channel-tabs li a,
.tabs-title > a{
  display:inline-flex;align-items:center;
  padding:8px 18px;border-radius:var(--radius-pill);
  font-size:14.5px;font-weight:500;color:var(--ink-700);
  background:transparent;border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.channel-tabs li a:hover,
.tabs-title > a:hover{background:var(--jade-100);color:var(--ink-700);}
.channel-tabs li a.is-active,
.channel-tabs .tabs-title.is-active > a{
  background:var(--ink-700);color:#fff;border-color:var(--ink-700);
}
.channel-tabs li a.is-active:hover{background:var(--ink-800);color:#fff;}
.site-header .tabs-title > a{color:var(--ink-700);}
.site-header .tabs-title > a:hover{color:var(--ink-900);}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,42,37,.5);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:200;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,84vw);
  background:var(--paper);z-index:210;padding:24px 22px;
  transform:translateX(102%);transition:transform .28s cubic-bezier(.22,.61,.36,1);
  overflow-y:auto;box-shadow:-20px 0 40px -30px rgba(15,42,37,.5);
  display:flex;flex-direction:column;gap:8px;
}
.drawer.is-open{transform:translateX(0);}
.drawer h4{font-size:14px;letter-spacing:.08em;color:var(--stone-500);font-family:var(--font-sans);font-weight:500;text-transform:uppercase;margin:12px 0 6px;}
.drawer a.drawer-link{
  display:block;padding:12px 14px;border-radius:10px;color:var(--ink-900);font-size:15px;
  border:1px solid transparent;transition:background .2s ease,border-color .2s ease;
}
.drawer a.drawer-link:hover{background:var(--jade-100);}
.drawer a.drawer-link.is-active{background:var(--ink-700);color:#fff;}
.drawer .btn{margin-top:16px;width:100%;}
.drawer-close{align-self:flex-end;border:0;background:transparent;font-size:22px;line-height:1;color:var(--stone-500);cursor:pointer;padding:4px 8px;border-radius:8px;}
.drawer-close:hover{color:var(--ink-900);}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;
  min-height:300px;
  display:flex;align-items:center;
  padding:72px 0 64px;
  color:#fff;
  background-image:linear-gradient(115deg,rgba(15,42,37,.86),rgba(15,42,37,.66)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.cat-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:rgba(255,255,255,.16);
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:18px;}
.crumb a{color:rgba(255,255,255,.82);}
.crumb a:hover{color:#fff;text-decoration:underline;}
.crumb span.sep{opacity:.55;}
.crumb .current{color:#fff;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.08em;font-weight:500;
  padding:7px 14px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  color:#fff;margin-bottom:20px;
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--clay-500);display:inline-block;}
.cat-hero h1{color:#fff;margin-bottom:14px;max-width:860px;}
.cat-hero p.hero-sub{color:rgba(255,255,255,.86);font-size:18px;line-height:1.75;max-width:720px;margin:0 0 26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:28px;margin-top:30px;font-size:13px;color:rgba(255,255,255,.72);}
.hero-meta strong{display:block;font-family:var(--font-serif);font-size:22px;color:#fff;font-variant-numeric:tabular-nums;line-height:1.3;}

/* ============ 锚点 Pill 行 ============ */
.anchor-bar{
  position:sticky;top:var(--header-total);z-index:90;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(6px);
}
.anchor-inner{
  display:flex;align-items:center;gap:8px;height:58px;
  overflow-x:auto;scrollbar-width:none;white-space:nowrap;
}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-pill{
  flex:none;padding:8px 18px;border-radius:var(--radius-pill);
  font-size:14px;color:var(--ink-700);background:var(--sand-50);
  border:1px solid var(--line);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.anchor-pill:hover{background:var(--jade-100);border-color:var(--jade-100);color:var(--ink-900);}
.anchor-pill.is-active{background:var(--ink-700);border-color:var(--ink-700);color:#fff;}

/* ============ 通用板块 ============ */
.section{padding:var(--section-y) 0;}
.section--tight{padding:64px 0;}
.section--paper{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section--ink{background:var(--ink-900);color:rgba(255,255,255,.86);}
.section--ink h2,.section--ink h3,.section--ink h4{color:#fff;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:44px;}
.section-head h2{margin-bottom:8px;}
.section-head .section-desc{font-size:14.5px;color:var(--stone-500);max-width:640px;margin:0;}
.section--ink .section-head .section-desc{color:rgba(255,255,255,.7);}
.section-link{font-size:14px;color:var(--ink-700);border-bottom:1px dashed rgba(27,81,71,.5);padding-bottom:2px;}
.section-link:hover{border-bottom-style:solid;color:var(--jade-500);}
.eyebrow{font-size:12.5px;letter-spacing:.1em;color:var(--clay-500);font-weight:600;display:block;margin-bottom:10px;}

/* 简介区 */
.intro-lead{font-family:var(--font-serif);font-size:22px;line-height:1.7;color:var(--ink-900);margin-bottom:20px;}
.intro-text{color:var(--stone-500);font-size:16px;}
.mini-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px;}
.mini-metric{padding-left:16px;border-left:3px solid var(--jade-100);}
.mini-metric strong{display:block;font-size:32px;font-weight:700;font-variant-numeric:tabular-nums;font-family:var(--font-serif);color:var(--ink-900);line-height:1.2;}
.mini-metric span{font-size:13px;color:var(--stone-500);}
.aside-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);
}
.aside-card h3{font-size:19px;margin-bottom:14px;}
.aside-list li{display:flex;gap:12px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14.5px;}
.aside-list li:last-child{border-bottom:0;}
.aside-list .dot{width:6px;height:6px;border-radius:50%;background:var(--clay-500);margin-top:10px;flex:none;}

/* 条目：两栏图文交错 */
.topic-row{
  display:flex;align-items:stretch;gap:0;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;margin-bottom:28px;box-shadow:var(--shadow-1);
  transition:box-shadow .28s ease,transform .28s ease;
}
.topic-row:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.topic-media{flex:0 0 46%;position:relative;background:var(--jade-100);}
.topic-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/9;border-radius:0;}
.topic-body{flex:1;padding:34px 36px;display:flex;flex-direction:column;justify-content:center;}
.topic-body h3{font-size:21px;margin-bottom:12px;}
.topic-body p{color:var(--stone-500);font-size:15.5px;margin-bottom:18px;}
.topic-foot{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--stone-500);}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:var(--radius-badge);
  background:var(--jade-100);color:var(--ink-700);
  font-size:12px;font-weight:500;letter-spacing:.02em;
}
.badge--clay{background:rgba(217,113,79,.14);color:var(--clay-600);}
.topic-link{margin-left:auto;font-size:14px;color:var(--ink-700);display:inline-flex;align-items:center;gap:6px;}
.topic-link:hover{gap:10px;}
.topic-link:hover{color:var(--jade-500);}
.topic-row:nth-child(even){flex-direction:row-reverse;}
@media (max-width:1023px){
  .topic-row,.topic-row:nth-child(even){flex-direction:column;}
  .topic-media{flex:none;width:100%;}
  .topic-body{padding:26px 24px;}
}

/* 流程时间线 */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid rgba(255,255,255,.16);}
.flow-step{padding:28px 26px 8px;border-right:1px solid rgba(255,255,255,.16);}
.flow-step:last-child{border-right:0;}
.flow-step .step-no{
  font-family:var(--font-serif);font-size:13px;letter-spacing:.12em;
  color:var(--clay-500);display:block;margin-bottom:12px;
}
.flow-step h3{font-size:18px;margin-bottom:10px;}
.flow-step p{font-size:14.5px;color:rgba(255,255,255,.72);margin:0;}
@media (max-width:1023px){
  .flow-grid{grid-template-columns:repeat(2,1fr);border-top:0;}
  .flow-step{border-right:0;border-top:1px solid rgba(255,255,255,.16);padding:24px 0;}
  .flow-step:nth-child(odd){padding-right:20px;border-right:1px solid rgba(255,255,255,.16);}
}
@media (max-width:639px){
  .flow-grid{grid-template-columns:1fr;}
  .flow-step:nth-child(odd){padding-right:0;border-right:0;}
}

/* 响应方式对照 */
.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--paper);}
.compare-col{padding:32px 34px;}
.compare-col--light{background:var(--jade-100);}
.compare-col--ink{background:var(--ink-800);color:rgba(255,255,255,.86);}
.compare-col--ink h3{color:#fff;}
.compare-col h3{font-size:20px;margin-bottom:16px;}
.compare-col ul li{padding:13px 0;border-bottom:1px solid rgba(15,42,37,.1);font-size:15px;display:flex;gap:12px;align-items:flex-start;}
.compare-col--ink ul li{border-bottom-color:rgba(255,255,255,.16);color:rgba(255,255,255,.84);}
.compare-col ul li:last-child{border-bottom:0;}
.tick{width:18px;height:18px;flex:none;margin-top:5px;border-radius:50%;background:var(--ink-700);position:relative;}
.tick::after{content:"";position:absolute;left:5px;top:5px;width:8px;height:4px;border-left:1.6px solid #fff;border-bottom:1.6px solid #fff;transform:rotate(-45deg);}
.compare-col--ink .tick{background:var(--clay-500);}
.compare-note{font-size:12.5px;color:var(--stone-500);margin-top:18px;}
@media (max-width:767px){
  .compare-wrap{grid-template-columns:1fr;}
}

/* FAQ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;cursor:pointer;
  display:flex;align-items:center;gap:18px;
  padding:22px 4px;font-family:var(--font-serif);font-size:18px;font-weight:600;color:var(--ink-900);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--ink-700);}
.faq-q .faq-icon{
  margin-left:auto;flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);position:relative;
  transition:transform .3s cubic-bezier(.22,.61,.36,1),background .2s ease,border-color .2s ease;
}
.faq-q .faq-icon::before,
.faq-q .faq-icon::after{
  content:"";position:absolute;background:var(--ink-700);border-radius:2px;
  transition:background .2s ease;
}
.faq-q .faq-icon::before{left:50%;top:7px;width:1.6px;height:10px;transform:translateX(-50%);}
.faq-q .faq-icon::after{top:50%;left:7px;height:1.6px;width:10px;transform:translateY(-50%);}
.faq-item.is-open .faq-q .faq-icon{transform:rotate(45deg);background:var(--ink-700);border-color:var(--ink-700);}
.faq-item.is-open .faq-q .faq-icon::before,
.faq-item.is-open .faq-q .faq-icon::after{background:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s cubic-bezier(.22,.61,.36,1);}
.faq-a-inner{padding:0 46px 24px 0;font-size:15px;line-height:1.85;color:var(--stone-500);}
.faq-a-inner p{margin:0;}

/* 条幅 CTA */
.cta-banner{
  background:linear-gradient(100deg,var(--ink-900),var(--ink-800));
  color:rgba(255,255,255,.86);
  border-radius:18px;
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 30px 60px -40px rgba(15,42,37,.7);
  position:relative;overflow:hidden;
}
.cta-banner::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;opacity:.6;pointer-events:none;
}
.cta-banner > *{position:relative;z-index:1;}
.cta-banner h2{color:#fff;font-size:clamp(22px,2.2vw,30px);margin-bottom:10px;}
.cta-banner p{margin:0;font-size:15px;color:rgba(255,255,255,.75);max-width:560px;}
.cta-banner .cta-actions{display:flex;gap:12px;flex:none;}
@media (max-width:899px){
  .cta-banner{flex-direction:column;align-items:flex-start;padding:34px 26px;}
}

/* 页脚 */
.site-footer{background:var(--sand-50);border-top:1px solid var(--line);padding:72px 0 26px;color:var(--stone-900);}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14px;color:var(--stone-500);max-width:340px;}
.footer-contact{font-size:13px;color:var(--stone-500);line-height:1.9;}
.footer-col h4{font-family:var(--font-sans);font-size:14px;font-weight:600;color:var(--ink-900);letter-spacing:.02em;margin-bottom:16px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{font-size:14px;color:var(--stone-500);}
.footer-col ul li a:hover{color:var(--ink-700);text-decoration:underline;}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--stone-500);
}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s cubic-bezier(.22,.61,.36,1),transform .42s cubic-bezier(.22,.61,.36,1);}
.reveal.is-visible{opacity:1;transform:none;}

/* 滚动条渐隐遮罩 */
.nav-bottom-inner::before,
.nav-bottom-inner::after{
  content:"";position:absolute;top:0;bottom:0;width:26px;pointer-events:none;z-index:2;
}
.nav-bottom-inner::before{left:0;background:linear-gradient(90deg,rgba(255,255,255,.95),rgba(255,255,255,0));}
.nav-bottom-inner::after{right:0;background:linear-gradient(270deg,rgba(255,255,255,.95),rgba(255,255,255,0));}

/* 响应式 */
@media (max-width:1023px){
  :root{
    --header-h:64px;
    --header-total:116px;
    --section-y:72px;
  }
  .header-search{display:none;}
  .header-actions .btn-primary{display:none;}
  .icon-btn{display:inline-flex;}
  .mini-metrics{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:767px){
  .mini-metrics{grid-template-columns:1fr;gap:16px;}
  .footer-brand p{max-width:none;}
}
@media (max-width:639px){
  :root{--section-y:56px;}
  body{font-size:16px;}
  .header-top-inner{gap:12px;}
  .brand-text{font-size:18px;}
  .cat-hero{padding:52px 0 46px;min-height:260px;}
  .cat-hero p.hero-sub{font-size:16px;}
  .hero-meta{gap:18px;}
  .section-head{margin-bottom:30px;}
  .cta-banner .cta-actions{width:100%;}
  .cta-banner .cta-actions .btn{width:100%;}
  .topic-body h3{font-size:19px;}
  .faq-q{font-size:16.5px;padding:18px 2px;}
  .faq-a-inner{padding-right:0;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}