/* roulang page: index */
:root{
  --brand-dark:#0B2926;
  --brand:#10443B;
  --brand-soft:#1E5B4D;
  --accent:#C89B5B;
  --accent-bright:#E4B978;
  --paper:#F7F3EB;
  --paper-2:#EFE8DA;
  --line:rgba(11,41,38,.14);
  --line-dark:rgba(255,255,255,.18);
  --ink:#17211F;
  --muted:#65736E;
  --white-line:rgba(255,255,255,.28);
  --shadow-1:0 6px 16px rgba(17,35,33,.06);
  --shadow-2:0 18px 40px rgba(11,41,38,.08);
  --r-lg:20px;
  --r-md:14px;
  --r-pill:999px;
  --container:1280px;
  --spacer:clamp(72px,8vw,128px);
  --font-sans:"HarmonyOS Sans SC","MiSans","PingFang SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
  --font-num:"DIN Alternate","Bebas Neue","Helvetica Neue",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  background:var(--paper);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
}
.wrap{
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:clamp(20px,4vw,48px);
}
.grid-container{
  max-width:var(--container);
  padding-left:clamp(20px,4vw,48px);
  padding-right:clamp(20px,4vw,48px);
}
.section{padding-block:var(--spacer)}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:12px;
  font-size:13px;
  font-weight:800;
  letter-spacing:.14em;
  color:var(--brand-soft);
  text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:32px;
  height:1px;
  background:var(--accent);
}
.leadquote{
  margin:28px 0 0;
  padding-left:22px;
  border-left:3px solid var(--accent);
  font-size:clamp(20px,2.4vw,26px);
  font-weight:700;
  line-height:1.6;
  color:var(--brand-dark);
}
.js [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .7s ease,transform .7s ease;
}
.js [data-reveal].in-view{
  opacity:1;
  transform:none;
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* ===== 头部与导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(247,243,235,.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(11,41,38,.08);
  transition:box-shadow .3s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(11,41,38,.10)}
.brand-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:14px 0;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:36px;
  height:36px;
  border-radius:50%;
  background:var(--brand-dark);
  color:var(--paper);
  display:grid;
  place-items:center;
  font-weight:900;
  font-size:19px;
}
.brand-name{
  font-size:22px;
  font-weight:900;
  letter-spacing:.05em;
  color:var(--brand-dark);
}
.brand-caption{
  display:none;
  font-size:12px;
  color:var(--muted);
  border-left:1px solid var(--line);
  padding-left:12px;
}
.header-tools{
  display:flex;
  align-items:center;
  gap:10px;
}
.search-mini{
  position:relative;
  display:flex;
  align-items:center;
}
.search-mini input{
  width:148px;
  height:38px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.55);
  padding:0 14px 0 36px;
  font-size:13px;
  color:var(--ink);
  transition:width .3s ease,box-shadow .3s ease,background .3s ease;
}
.search-mini input:focus{
  width:220px;
  outline:none;
  box-shadow:0 0 0 3px rgba(200,155,91,.25);
  background:#fff;
}
.search-mini .search-glyph{
  position:absolute;
  left:12px;
  top:50%;
  transform:translateY(-50%);
  font-size:14px;
  color:var(--muted);
  pointer-events:none;
}
.trend-chip{
  font-size:12px;
  color:var(--brand);
  background:rgba(16,68,59,.08);
  border:1px solid rgba(16,68,59,.12);
  border-radius:var(--r-pill);
  padding:6px 12px;
  transition:background .2s ease,color .2s ease;
}
.trend-chip:hover{
  background:var(--brand);
  color:var(--paper);
}
.header-cta{
  height:38px;
  display:inline-flex;
  align-items:center;
  padding:0 18px;
  border-radius:var(--r-pill);
  background:var(--brand);
  color:var(--paper);
  font-size:13px;
  font-weight:700;
  white-space:nowrap;
  transition:background .25s,transform .2s,box-shadow .25s;
}
.header-cta:hover{
  background:var(--accent);
  color:var(--brand-dark);
  transform:translateY(-1px);
  box-shadow:var(--shadow-1);
}
.category-nav{
  border-top:1px solid rgba(11,41,38,.07);
  display:flex;
  align-items:center;
  gap:34px;
  overflow-x:auto;
  scrollbar-width:none;
  white-space:nowrap;
  min-height:46px;
}
.category-nav::-webkit-scrollbar{display:none}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:46px;
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  opacity:.72;
  transition:opacity .2s;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-1px;
  width:100%;
  height:3px;
  border-radius:3px 3px 0 0;
  background:transparent;
  transition:background .25s;
}
.nav-link:hover,.nav-link.is-active{opacity:1}
.nav-link.is-active::after{background:var(--accent)}
.nav-slug{display:none}

/* ===== 通用按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:52px;
  padding:0 30px;
  border-radius:12px;
  border:1px solid transparent;
  font-weight:700;
  font-size:16px;
  line-height:1;
  cursor:pointer;
  white-space:nowrap;
  transition:background .25s ease,color .25s ease,transform .2s ease,box-shadow .25s ease,border-color .25s ease;
}
.btn-accent{
  background:var(--accent);
  color:var(--brand-dark);
}
.btn-accent:hover{
  background:var(--accent-bright);
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
}
.btn-ghost-light{
  background:transparent;
  border-color:rgba(255,255,255,.45);
  color:var(--paper);
}
.btn-ghost-light:hover{
  background:rgba(255,255,255,.12);
  border-color:rgba(255,255,255,.7);
}
.btn-dark{
  background:var(--brand);
  color:var(--paper);
}
.btn-dark:hover{
  background:var(--brand-soft);
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
}
.btn-arrow::after{
  content:"→";
  font-size:18px;
  line-height:1;
  transition:transform .2s ease;
}
.btn-arrow:hover::after{transform:translateX(4px)}

/* ===== Hero ===== */
.hero-module{
  position:relative;
  isolation:isolate;
  overflow:hidden;
  background-image:linear-gradient(95deg,rgba(11,41,38,.96) 20%,rgba(11,41,38,.78) 55%,rgba(11,41,38,.5) 100%),url("/assets/images/backpic/back-1.jpg");
  background-size:cover;
  background-position:center 38%;
  color:var(--paper);
  padding-block:clamp(70px,9vw,130px);
}
.hero-module::after{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--accent) 20%,var(--accent) 70%,transparent);
  z-index:2;
}
.hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(260px,360px);
  gap:clamp(30px,5vw,80px);
  align-items:end;
}
.hero-kicker{
  margin:0 0 20px;
  font-size:13px;
  font-weight:800;
  letter-spacing:.16em;
  color:var(--accent-bright);
}
.hero-title{
  margin:0 0 26px;
  font-size:clamp(46px,7.4vw,90px);
  line-height:1.08;
  letter-spacing:-.035em;
  font-weight:900;
  color:#fff;
}
.hero-sub{
  margin:0;
  max-width:600px;
  font-size:clamp(17px,1.8vw,20px);
  line-height:1.85;
  color:rgba(247,243,235,.88);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:36px;
}
.hero-note{
  margin-top:18px;
  font-size:13px;
  color:rgba(247,243,235,.55);
}
.hero-panel{
  border:1px solid var(--white-line);
  background:rgba(255,255,255,.06);
  border-radius:var(--r-lg);
  padding:24px;
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
}
.hero-panel-label{
  font-size:12px;
  font-weight:800;
  letter-spacing:.12em;
  color:var(--accent-bright);
  margin:0 0 16px;
}
.hero-chip{
  display:block;
  padding:14px 4px;
  border-bottom:1px solid var(--line-dark);
  color:var(--paper);
  font-size:14px;
  font-weight:600;
  transition:padding-left .25s ease,color .2s;
}
.hero-chip:last-of-type{border-bottom:0}
.hero-chip:hover{
  padding-left:12px;
  color:var(--accent-bright);
}
.hero-chip small{
  display:block;
  font-size:12px;
  font-weight:400;
  color:rgba(247,243,235,.56);
  margin-top:2px;
}

/* ===== 痛点区 ===== */
.pain-section{background:var(--paper);position:relative}
.pain-section::before{
  content:"";
  position:absolute;
  top:0;bottom:0;left:0;
  width:1px;
  background:linear-gradient(var(--line),transparent);
}
.pain-grid{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:clamp(44px,6vw,90px);
}
.pain-intro h2,
.solution-copy h2,
.result-copy h2,
.testimonial-heading h2,
.news-copy h2,
.cta-copy h2{
  margin:0 0 20px;
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.2;
  letter-spacing:-.02em;
  color:var(--brand-dark);
}
.pain-intro p,
.solution-copy p,
.news-copy p{
  margin:0 0 16px;
  color:var(--muted);
  max-width:46em;
}
.pain-list{
  border-top:1px solid var(--line);
}
.pain-item{
  display:grid;
  grid-template-columns:58px 1fr;
  gap:14px 20px;
  padding:26px 0 22px;
  border-bottom:1px solid var(--line);
  transition:padding-left .3s ease;
}
.pain-item:hover{padding-left:10px}
.pain-item .pain-no{
  grid-row:1/3;
  font-family:var(--font-num);
  font-size:15px;
  font-weight:800;
  color:var(--accent);
  padding-top:8px;
}
.pain-item h3{
  margin:0 0 6px;
  font-size:21px;
  font-weight:800;
  color:var(--ink);
}
.pain-item p{
  margin:0;
  font-size:15px;
  color:var(--muted);
  max-width:44em;
}
.pain-exit{
  margin-top:40px;
  font-size:15px;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:700;
  color:var(--brand);
  border-bottom:2px solid transparent;
  transition:border-color .2s,gap .2s;
}
.text-link::after{content:"→";transition:transform .2s}
.text-link:hover::after{transform:translateX(4px)}
.text-link:hover{border-bottom-color:var(--accent)}

/* ===== 解决方案区 ===== */
.solution-section{
  background:var(--paper-2);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.solution-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:clamp(40px,5vw,70px);
  align-items:center;
}
.solution-visual{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow-2);
}
.solution-visual img{
  width:100%;
  aspect-ratio:10/8;
  object-fit:cover;
  transition:transform .6s ease;
}
.solution-visual:hover img{transform:scale(1.03)}
.solution-visual-caption{
  position:absolute;
  left:18px;bottom:18px;
  right:18px;
  background:rgba(11,41,38,.78);
  color:var(--paper);
  padding:14px 18px;
  border-radius:14px;
  font-size:14px;
  border:1px solid rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}
.solution-visual-caption strong{display:block;color:var(--accent-bright)}
.solution-copy .eyebrow{color:var(--brand)}
.solution-copy h2,.solution-copy p{color:var(--ink)}
.solution-copy p{color:var(--muted)}
.step-list{margin:30px 0 0;padding:0;list-style:none}
.step-item{
  display:grid;
  grid-template-columns:54px 1fr;
  gap:6px 16px;
  padding:18px 0;
  border-bottom:1px solid var(--line);
}
.step-no{
  font-family:var(--font-num);
  font-size:32px;
  font-weight:800;
  color:var(--brand);
  line-height:1;
  padding-top:6px;
}
.step-item h3{
  margin:0;
  font-size:18px;
  font-weight:800;
}
.step-item p{
  margin:4px 0 0;
  font-size:14px;
  color:var(--muted);
}
.chip-row{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:30px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:9px 18px;
  border-radius:var(--r-pill);
  background:rgba(16,68,59,.08);
  color:var(--brand);
  border:1px solid rgba(16,68,59,.14);
  font-size:14px;
  font-weight:700;
  transition:background .2s,color .2s,transform .2s;
}
.chip:hover{
  background:var(--brand);
  color:var(--paper);
  transform:translateY(-2px);
}

/* ===== 成果区 ===== */
.result-section{
  background-image:linear-gradient(120deg,rgba(11,41,38,.96),rgba(16,68,59,.88)),url("/assets/images/backpic/back-2.jpg");
  background-size:cover;
  background-position:center;
  color:var(--paper);
}
.result-section .eyebrow{color:var(--accent-bright)}
.result-section h2{color:#fff}
.result-section .lede{color:rgba(247,243,235,.72);max-width:44em}
.result-grid{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:clamp(46px,6vw,90px);
  align-items:center;
}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.stat-card{
  background:rgba(255,255,255,.1);
  border:1px solid var(--line-dark);
  border-radius:var(--r-md);
  padding:26px 22px;
  min-height:150px;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
}
.stat-num{
  font-family:var(--font-num);
  font-size:clamp(54px,6vw,80px);
  font-weight:800;
  line-height:1;
  color:var(--accent-bright);
}
.stat-label{
  margin-top:16px;
  font-size:14px;
  color:rgba(247,243,235,.76);
}
.result-list{
  list-style:none;
  margin:0;
  padding:0;
  border-top:1px solid var(--line-dark);
}
.result-item{
  position:relative;
  padding:20px 22px 20px 26px;
  border-bottom:1px solid var(--line-dark);
  transition:background .25s ease;
}
.result-item::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:3px;
  background:var(--accent);
  opacity:0;
  transition:opacity .25s;
}
.result-item:hover::before{opacity:1}
.result-item:hover{background:rgba(255,255,255,.04)}
.result-item strong{
  display:block;
  font-size:18px;
  color:#fff;
  margin-bottom:4px;
}
.result-item span{
  font-size:14px;
  color:rgba(247,243,235,.65);
}

/* ===== 证言区 ===== */
.testimonial-section{background:var(--paper)}
.testimonial-heading{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  border-bottom:1px solid var(--line);
  padding-bottom:24px;
  margin-bottom:40px;
}
.testimonial-heading .eyebrow{margin-bottom:8px}
.testimonial-heading p{margin:0;color:var(--muted);max-width:420px}
.big-quote{
  position:relative;
  max-width:980px;
  margin:0 auto 48px;
  padding:36px 40px 28px 72px;
  border:1px solid transparent;
}
.big-quote::before{
  content:"“";
  position:absolute;
  left:6px;top:-8px;
  font-size:110px;
  line-height:1;
  font-weight:900;
  color:var(--accent);
  opacity:.35;
}
.big-quote blockquote{
  margin:0;
  font-size:clamp(24px,3vw,36px);
  font-weight:700;
  line-height:1.55;
  letter-spacing:-.01em;
  color:var(--brand-dark);
}
.big-quote figcaption{
  margin-top:16px;
  font-size:14px;
  color:var(--muted);
}
.quote-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.quote-card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:box-shadow .3s ease,transform .25s ease;
}
.quote-card:hover{
  box-shadow:var(--shadow-2);
  transform:translateY(-3px);
}
.quote-media img{
  width:100%;
  height:170px;
  object-fit:cover;
}
.quote-body{padding:26px}
.quote-body blockquote{
  margin:0 0 18px;
  font-size:16px;
  color:var(--ink);
}
.quote-body figcaption{
  font-size:13px;
  color:var(--muted);
  border-left:3px solid var(--accent);
  padding-left:12px;
}
.quote-body figcaption strong{
  display:block;
  color:var(--brand-dark);
  font-size:14px;
}

/* ===== 资讯区 ===== */
.news-section{
  background:var(--paper-2);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.news-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:clamp(44px,6vw,80px);
}
.news-list-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  border-bottom:1px solid var(--line);
  padding-bottom:20px;
  margin-bottom:12px;
}
.news-list-head h2{
  margin:0;
  font-size:clamp(28px,3.2vw,42px);
  letter-spacing:-.02em;
  color:var(--brand-dark);
}
.news-list{
  list-style:none;
  margin:0;
  padding:0;
}
.news-item{
  border-bottom:1px solid rgba(11,41,38,.1);
}
.news-item a{
  display:block;
  padding:22px 4px;
  transition:padding-left .25s ease,background .25s;
}
.news-item a:hover{
  padding-left:18px;
  background:rgba(255,255,255,.35);
  border-radius:10px;
}
.news-item-title{
  display:flex;
  align-items:baseline;
  gap:14px;
}
.news-item-title span{
  flex-shrink:0;
  font-family:var(--font-num);
  font-weight:800;
  color:var(--accent);
  font-size:16px;
}
.news-item-title strong{
  font-size:18px;
  font-weight:800;
  color:var(--ink);
  transition:color .2s;
}
.news-item-title strong:hover{color:var(--brand)}
.news-item p{
  margin:8px 0 0 34px;
  font-size:14px;
  color:var(--muted);
}
.news-feature{
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--paper);
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
}
.news-feature img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.news-feature-body{
  padding:28px 26px;
}
.news-feature-body h3{
  margin:0 0 12px;
  font-size:23px;
  line-height:1.4;
  color:var(--brand-dark);
}
.news-feature-body p{
  margin:0 0 20px;
  font-size:14px;
  color:var(--muted);
}

/* ===== CTA + FAQ ===== */
.cta-faq-section{background:var(--paper)}
.cta-panel{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  padding:clamp(38px,6vw,72px);
  background:linear-gradient(115deg,rgba(11,41,38,.96),rgba(30,91,77,.9)),url("/assets/images/backpic/back-4.jpg");
  background-size:cover;
  background-position:center;
  color:var(--paper);
  text-align:left;
}
.cta-panel::after{
  content:"";
  position:absolute;
  right:-80px;top:-80px;
  width:220px;height:220px;
  border:1px solid rgba(255,255,255,.15);
  border-radius:50%;
}
.cta-panel h2{
  margin:0 0 16px;
  font-size:clamp(30px,4.4vw,52px);
  color:#fff;
  letter-spacing:-.02em;
}
.cta-panel p{
  max-width:42em;
  color:rgba(247,243,235,.78);
  margin:0 0 30px;
  font-size:16px;
}
.cta-row{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  align-items:center;
}
.cta-command{
  margin-left:4px;
  font-size:13px;
  color:rgba(247,243,235,.55);
  letter-spacing:.02em;
}
.faq-area{
  padding-top:clamp(52px,7vw,90px);
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:clamp(36px,5vw,72px);
}
.faq-intro h2{
  margin:0 0 16px;
  color:var(--brand-dark);
}
.faq-intro p{
  color:var(--muted);
  font-size:15px;
}
.faq-list{
  border-top:1px solid var(--line);
}
.faq-item{
  border-bottom:1px solid var(--line);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  background:none;
  border:0;
  text-align:left;
  padding:24px 4px;
  font-size:18px;
  font-weight:800;
  color:var(--ink);
  cursor:pointer;
  transition:color .2s;
}
.faq-q:hover{color:var(--brand)}
.faq-q .faq-icon{
  flex-shrink:0;
  width:28px;
  height:28px;
  border-radius:50%;
  border:1px solid var(--line);
  display:grid;
  place-items:center;
  font-size:22px;
  line-height:1;
  color:var(--accent);
  transition:background .25s,color .25s,transform .25s;
}
.faq-item.is-open .faq-icon{
  background:var(--accent);
  color:var(--brand-dark);
  transform:rotate(45deg);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
  color:var(--muted);
  font-size:15px;
}
.faq-a-inner{
  padding-bottom:20px;
  max-width:52em;
}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--brand-dark);
  color:rgba(247,243,235,.78);
  margin-top:0;
}
.footer-accent{
  height:3px;
  background:linear-gradient(90deg,var(--accent) 0%,var(--accent) 30%,transparent 90%);
}
.newsletter-row{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:clamp(36px,5vw,80px);
  align-items:center;
  padding:clamp(54px,6vw,84px) 0 44px;
  border-bottom:1px solid var(--line-dark);
}
.newsletter-row h2{
  margin:0 0 10px;
  font-size:34px;
  color:#fff;
  letter-spacing:-.02em;
}
.newsletter-row p{
  margin:0;
  font-size:14px;
  color:rgba(247,243,235,.6);
}
.newsletter-form{
  display:flex;
  gap:12px;
  max-width:560px;
}
.newsletter-form input{
  flex:1;
  height:52px;
  border-radius:12px;
  border:1px solid var(--line-dark);
  background:rgba(255,255,255,.06);
  color:var(--paper);
  padding:0 18px;
  font-size:15px;
  min-width:0;
}
.newsletter-form input::placeholder{color:rgba(247,243,235,.45)}
.newsletter-form input:focus{
  outline:none;
  border-color:var(--accent);
  background:rgba(255,255,255,.1);
  box-shadow:0 0 0 3px rgba(200,155,91,.22);
}
.footer-cols{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:clamp(28px,4vw,56px);
  padding-block:clamp(42px,5vw,62px);
}
.footer-brand .brand-name{color:#fff}
.footer-brand p{
  font-size:14px;
  color:rgba(247,243,235,.55);
  max-width:32em;
  margin-top:16px;
}
.footer-col h3{
  margin:0 0 16px;
  color:#fff;
  font-size:16px;
  font-weight:800;
}
.footer-col a{
  display:block;
  padding:6px 0;
  font-size:14px;
  color:rgba(247,243,235,.62);
  transition:color .2s,padding-left .2s;
}
.footer-col a:hover{
  color:var(--accent-bright);
  padding-left:6px;
}
.footer-bottom{
  border-top:1px solid var(--line-dark);
  padding:22px 0 28px;
  font-size:13px;
  color:rgba(247,243,235,.45);
  display:flex;
  flex-wrap:wrap;
  gap:8px 24px;
  justify-content:space-between;
}
/* ===== 返回顶部 ===== */
.to-top{
  position:fixed;
  right:22px;
  bottom:22px;
  z-index:70;
  width:48px;
  height:48px;
  border-radius:50%;
  border:0;
  background:var(--brand);
  color:var(--paper);
  font-size:22px;
  cursor:pointer;
  opacity:0;
  pointer-events:none;
  transform:translateY(12px);
  transition:opacity .3s,transform .3s,background .25s;
  box-shadow:var(--shadow-2);
}
.to-top.show{
  opacity:1;
  pointer-events:auto;
  transform:none;
}
.to-top:hover{
  background:var(--accent);
  color:var(--brand-dark);
}

/* ===== 响应式 ===== */
@media (min-width:120em){
  .hero-title{max-width:760px}
}
@media (max-width:1100px){
  .trend-chip{display:none}
}
@media (max-width:960px){
  .hero-inner{
    grid-template-columns:1fr;
  }
  .hero-panel{
    max-width:560px;
  }
  .pain-grid,
  .solution-grid,
  .result-grid,
  .news-grid,
  .cta-faq-area,
  .faq-area{
    grid-template-columns:1fr;
  }
  .solution-visual{
    order:2;
  }
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .quote-grid{grid-template-columns:1fr}
  .newsletter-row{grid-template-columns:1fr}
  .footer-cols{grid-template-columns:1fr 1fr}
  .newsletter-form{max-width:none}
}
@media (max-width:720px){
  .section{padding-block:64px}
  .category-nav{gap:24px}
  .nav-link{letter-spacing:.02em;font-size:14px}
  .search-mini input{width:92px;padding-left:32px;font-size:12px;}
  .search-mini input:focus{width:150px}
  .header-tools{gap:8px}
  .header-cta{padding:0 14px}
  .brand-caption{display:none}
  .stat-grid{grid-template-columns:1fr 1fr}
  .stat-card{min-height:130px;padding:18px}
  .quote-grid{gap:16px}
  .newsletter-form{flex-direction:column}
  .newsletter-form .btn{width:100%}
  .to-top{bottom:16px;right:16px;width:42px;height:42px}
}
@media (max-width:480px){
  .brand-name{font-size:19px}
  .search-mini{display:none}
  .hero-title{font-size:clamp(40px,10vw,58px)}
  .hero-actions .btn{width:100%}
  .pain-item{grid-template-columns:34px 1fr;gap:12px}
  .step-item{grid-template-columns:42px 1fr;gap:10px}
  .quote-body{padding:20px}
  .news-item-title strong{font-size:16px}
  .footer-cols{grid-template-columns:1fr}
}

/* roulang page: category1 */
/* ===== roulang design system ===== */
:root{
  --brand-dark:#0B2926;
  --brand:#10443B;
  --brand-soft:#1E5B4D;
  --accent:#C89B5B;
  --accent-bright:#E4B978;
  --paper:#F7F3EB;
  --paper-2:#EFE8DA;
  --line:rgba(11,41,38,.14);
  --line-dark:rgba(255,255,255,.18);
  --ink:#17211F;
  --muted:#65736E;
  --white-line:rgba(255,255,255,.28);
  --shadow-1:0 6px 16px rgba(17,35,33,.06);
  --shadow-2:0 18px 40px rgba(11,41,38,.08);
  --r-lg:20px;
  --r-md:14px;
  --r-pill:999px;
  --container:1280px;
  --spacer:clamp(72px,8vw,128px);
  --font-sans:"HarmonyOS Sans SC","MiSans","PingFang SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
  --font-num:"DIN Alternate","Bebas Neue","Helvetica Neue",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  background:var(--paper);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
}
::selection{background:rgba(200,155,91,.28)}
.wrap,.grid-container{
  max-width:var(--container);
  margin-inline:auto;
  padding-left:clamp(20px,4vw,48px);
  padding-right:clamp(20px,4vw,48px);
}
.row{max-width:none}
.column,.columns{padding-left:15px;padding-right:15px}
.section{padding-block:var(--spacer)}
.section.is-bg{background:var(--paper-2)}
.section.is-white{background:#fff}
.section-tight{padding-block:clamp(36px,5vw,72px)}
.section-head{margin-bottom:clamp(32px,4vw,52px)}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:12px;
  font-size:13px;
  font-weight:800;
  letter-spacing:.14em;
  color:var(--brand-soft);
  text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:32px;
  height:1px;
  background:var(--accent);
}
.eyebrow.is-light{color:rgba(247,243,235,.62)}
.eyebrow.is-light::before{background:var(--accent)}
h1,h2,h3,h4{line-height:1.24;letter-spacing:-.02em;font-weight:800}
h1{font-size:clamp(40px,5.6vw,66px);line-height:1.08}
h2{font-size:clamp(28px,3.6vw,40px)}
h3{font-size:clamp(19px,1.6vw,22px)}
p{color:var(--ink);opacity:.92}
.lead{
  font-size:clamp(18px,2vw,22px);
  line-height:1.85;
  color:var(--ink);
  opacity:.86;
  margin-top:20px;
  max-width:64ch;
}
.section-kicker{
  font-size:13px;
  font-weight:700;
  letter-spacing:.1em;
  color:var(--accent);
  text-transform:uppercase;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:700;
  color:var(--brand-soft);
  border-bottom:2px solid rgba(16,68,59,.14);
  padding-bottom:2px;
  transition:border-color .2s,color .2s,gap .2s;
}
.text-link::after{content:"→";transition:transform .2s}
.text-link:hover{color:var(--brand);border-color:var(--brand)}
.text-link:hover::after{transform:translateX(4px)}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:52px;
  padding:0 30px;
  border-radius:12px;
  border:1px solid transparent;
  font-weight:700;
  font-size:16px;
  line-height:1;
  cursor:pointer;
  white-space:nowrap;
  transition:background .25s ease,color .25s ease,transform .2s ease,box-shadow .25s ease,border-color .25s ease;
}
.btn-accent{background:var(--accent);color:var(--brand-dark)}
.btn-accent:hover{background:var(--accent-bright);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-dark{background:var(--brand);color:var(--paper)}
.btn-dark:hover{background:var(--brand-soft);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.45);color:var(--paper)}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.72)}
.btn-arrow::after{content:"→";font-size:18px;transition:transform .2s}
.btn-arrow:hover::after{transform:translateX(4px)}
.js [data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .7s ease,transform .7s ease}
.js [data-reveal].in-view{opacity:1;transform:none}

/* ===== 头部与导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(247,243,235,.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(11,41,38,.08);
  transition:box-shadow .3s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(11,41,38,.10)}
.brand-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:14px 0;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:50%;
  background:var(--brand-dark);color:var(--paper);
  display:grid;place-items:center;
  font-weight:900;font-size:19px;
}
.brand-name{font-size:22px;font-weight:900;letter-spacing:.05em;color:var(--brand-dark)}
.header-tools{display:flex;align-items:center;gap:10px}
.search-mini{position:relative;display:flex;align-items:center}
.search-mini input{
  width:148px;height:38px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.55);
  padding:0 14px 0 36px;
  font-size:13px;color:var(--ink);
  transition:width .3s ease,box-shadow .3s ease,background .3s ease;
}
.search-mini input:focus{
  width:220px;outline:none;
  box-shadow:0 0 0 3px rgba(200,155,91,.25);
  background:#fff;
}
.search-mini .search-glyph{
  position:absolute;left:12px;top:50%;
  transform:translateY(-50%);
  font-size:14px;color:var(--muted);
  pointer-events:none;
}
.trend-chip{
  font-size:12px;color:var(--brand);
  background:rgba(16,68,59,.08);
  border:1px solid rgba(16,68,59,.12);
  border-radius:var(--r-pill);
  padding:6px 12px;
  white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.trend-chip:hover{background:var(--brand);color:var(--paper)}
.header-cta{
  height:38px;display:inline-flex;align-items:center;
  padding:0 18px;border-radius:var(--r-pill);
  background:var(--brand);color:var(--paper);
  font-size:13px;font-weight:700;white-space:nowrap;
  transition:background .25s,transform .2s,box-shadow .25s;
}
.header-cta:hover{background:var(--accent);color:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-1)}
.category-nav{
  border-top:1px solid rgba(11,41,38,.07);
  display:flex;align-items:center;
  gap:34px;
  overflow-x:auto;
  scrollbar-width:none;
  white-space:nowrap;
  min-height:46px;
}
.category-nav::-webkit-scrollbar{display:none}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:46px;font-size:15px;font-weight:700;
  color:var(--ink);opacity:.72;
  transition:opacity .2s;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-1px;
  width:100%;height:3px;
  border-radius:3px 3px 0 0;
  background:transparent;
  transition:background .25s;
}
.nav-link:hover,.nav-link.is-active{opacity:1}
.nav-link.is-active::after{background:var(--accent)}

/* ===== 通用页脚 ===== */
.site-footer{
  background:var(--brand-dark);
  color:rgba(247,243,235,.78);
  margin-top:clamp(48px,6vw,100px);
}
.footer-accent{height:4px;background:linear-gradient(90deg,var(--accent),transparent 72%)}
.site-footer .wrap{padding-top:clamp(52px,6vw,88px);padding-bottom:28px}
.newsletter-row{
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:32px;
  align-items:end;
  padding-bottom:46px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.newsletter-row h2{font-size:clamp(24px,3vw,34px);color:var(--paper);letter-spacing:-.02em}
.newsletter-row p{margin-top:8px;color:rgba(247,243,235,.62);font-size:15px}
.newsletter-form{display:flex;gap:10px;flex-wrap:wrap}
.newsletter-form input{
  flex:1;min-width:220px;height:52px;
  border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.08);
  color:var(--paper);
  border-radius:12px;
  padding:0 18px;
  font-size:14px;
  transition:border-color .2s,background .2s;
}
.newsletter-form input:focus{outline:none;border-color:var(--accent);background:rgba(255,255,255,.12)}
.newsletter-form input::placeholder{color:rgba(247,243,235,.42)}
.newsletter-form .btn{background:var(--accent);color:var(--brand-dark);border-radius:12px}
.newsletter-form .btn:hover{background:var(--accent-bright)}
.footer-cols{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:36px;
  padding-block:46px 36px;
}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(247,243,235,.58);margin-top:18px;max-width:36ch}
.footer-brand .brand .brand-mark{background:var(--paper);color:var(--brand-dark)}
.footer-brand .brand .brand-name{color:var(--paper)}
.footer-col h3{
  font-size:14px;font-weight:800;letter-spacing:.1em;
  color:rgba(247,243,235,.92);
  margin-bottom:20px;
}
.footer-col a{
  display:block;
  font-size:14px;line-height:1.9;
  color:rgba(247,243,235,.62);
  padding-block:4px;
  transition:color .2s,padding-left .2s;
}
.footer-col a:hover{color:var(--accent-bright);padding-left:6px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:22px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:rgba(247,243,235,.4);
}

/* ===== 分类页 分类头区 ===== */
.category-hero{
  position:relative;
  padding:clamp(48px,6vw,88px) 0 clamp(20px,3vw,34px);
  background:
    radial-gradient(720px 320px at 86% 18%,rgba(16,68,59,.08),transparent 60%),
    linear-gradient(180deg,#fff 0%,var(--paper) 100%);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.cat-head-row{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,.9fr);
  gap:clamp(28px,6vw,90px);
  align-items:end;
}
.cat-head-main .eyebrow{margin-bottom:20px}
.cat-head-main h1{margin-bottom:16px}
.cat-head-main .cat-lead{
  font-size:clamp(17px,2vw,21px);
  line-height:1.8;
  max-width:24em;
  color:var(--brand-dark);
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:24px;
  font-size:13px;
  color:var(--muted);
}
.breadcrumb a{color:var(--muted);transition:color .2s}
.breadcrumb a:hover{color:var(--brand-soft)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:var(--brand-soft);font-weight:700}
.cat-head-aside{
  border-left:3px solid var(--accent);
  padding-left:clamp(16px,2vw,30px);
  margin-bottom:8px;
}
.cat-head-aside p{font-size:15px;color:var(--muted);line-height:1.95}
.filter-chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:clamp(28px,4vw,42px);
  padding-top:24px;
  border-top:1px solid var(--line);
}
.filter-chip{
  border:1px solid var(--line);
  background:rgba(255,255,255,.55);
  color:var(--brand-dark);
  font-size:14px;
  font-weight:700;
  height:38px;
  padding:0 18px;
  border-radius:var(--r-pill);
  cursor:pointer;
  transition:background .2s,border-color .2s,color .2s,box-shadow .2s;
}
.filter-chip:hover{border-color:var(--brand);background:rgba(16,68,59,.06)}
.filter-chip.is-on{background:var(--brand);border-color:var(--brand);color:var(--paper);box-shadow:var(--shadow-1)}

/* ===== 分类页 编辑精选 ===== */
.featured-section{padding-top:clamp(40px,5.4vw,84px);padding-bottom:0}
.featured-main{
  display:block;
  position:relative;
  height:100%;
  min-height:520px;
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--brand-dark);
  box-shadow:var(--shadow-1);
  transition:box-shadow .4s ease;
}
.featured-main:hover{box-shadow:var(--shadow-2)}
.featured-media{position:absolute;inset:0;overflow:hidden}
.featured-media img{width:100%;height:100%;object-fit:cover;transition:transform .8s ease}
.featured-main:hover .featured-media img{transform:scale(1.04)}
.featured-main::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,41,38,0) 28%,rgba(11,41,38,.72) 76%,rgba(11,41,38,.9) 100%);
}
.featured-main-content{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:clamp(22px,3vw,36px);
  z-index:2;
  color:var(--paper);
}
.feature-tag{
  position:absolute;
  left:20px;top:20px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 14px;
  border-radius:var(--r-pill);
  background:rgba(16,68,59,.72);
  color:var(--paper);
  font-size:12px;
  font-weight:700;
  letter-spacing:.08em;
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,.16);
}
.feature-meta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.08em;
  color:rgba(255,255,255,.72);
  text-transform:uppercase;
  margin-bottom:10px;
}
.featured-main-content h2{color:var(--paper);font-size:clamp(24px,2.5vw,34px);line-height:1.28;max-width:20em}
.featured-main-content p{color:rgba(247,243,235,.76);font-size:15px;margin-top:10px;max-width:56ch}
.featured-main-content .link-light{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:16px;
  color:var(--accent-bright);
  font-weight:700;
  font-size:14px;
  transition:gap .2s ease;
}
.featured-main-content .link-light::after{content:"→"}
.featured-main:hover .link-light{gap:10px}
.featured-side-list{display:flex;flex-direction:column;gap:16px;height:100%}
.side-feat-item{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:18px;
  background:rgba(255,255,255,.62);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px 24px;
  transition:background .25s,border-color .25s,transform .2s,box-shadow .25s;
}
.side-feat-item:hover{
  background:#fff;
  border-color:rgba(16,68,59,.28);
  box-shadow:var(--shadow-1);
  transform:translateY(-2px);
}
.side-index{font-family:var(--font-num);font-size:32px;line-height:1;color:var(--accent)}
.side-feat-tag{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.08em;color:var(--brand-soft);margin-bottom:8px}
.side-feat-item h3{font-size:17px;line-height:1.55;font-weight:800;color:var(--brand-dark)}
.side-meta{margin-top:8px;font-size:13px;color:var(--muted)}
.featured-side-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-top:18px;
  font-size:14px;
  font-weight:700;
  color:var(--brand);
  border-top:1px dashed var(--line);
  padding-top:18px;
  transition:color .2s;
}
.featured-side-link:hover{color:var(--accent)}

/* ===== 分类页 卖点支柱 ===== */
.method-section{background:linear-gradient(180deg,#fff,var(--paper) 85%)}
.pillar{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:clamp(24px,2vw,32px);
  height:100%;
  overflow:hidden;
  transition:box-shadow .3s ease,transform .3s ease;
}
.pillar::before{
  content:"";
  position:absolute;
  left:0;top:0;height:4px;width:100%;
  background:linear-gradient(90deg,var(--accent),transparent 80%);
}
.pillar:hover{box-shadow:var(--shadow-2);transform:translateY(-4px)}
.pillar-row .columns{margin-bottom:24px}
.pillar-number{font-family:var(--font-num);font-size:44px;color:var(--accent);line-height:1;display:block;margin-bottom:12px}
.pillar-tag{
  display:inline-block;
  font-size:12px;
  font-weight:800;
  letter-spacing:.06em;
  background:rgba(16,68,59,.08);
  color:var(--brand);
  padding:4px 12px;
  border-radius:var(--r-pill);
  margin-bottom:14px;
}
.pillar h3{color:var(--brand-dark);margin-bottom:12px}
.pillar p{font-size:14px;color:var(--muted)}
.method-chips-row{
  margin-top:clamp(28px,4vw,44px);
  border-top:1px solid var(--line);
  padding-top:24px;
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
}
.method-chips-row .chips-label{font-size:14px;font-weight:700;color:var(--brand-dark);margin-right:4px}
.method-chip{
  height:34px;
  padding:0 14px;
  border-radius:var(--r-pill);
  background:rgba(16,68,59,.08);
  border:1px solid transparent;
  color:var(--brand);
  font-size:13px;
  font-weight:700;
  display:inline-flex;align-items:center;
  transition:background .2s,color .2s,border-color .2s;
}
.method-chip:hover{background:var(--brand);color:var(--paper)}

/* ===== 适用者深色区 ===== */
.who-band{
  background:
    linear-gradient(140deg,rgba(11,41,38,.96),rgba(16,68,59,.94)),
    url('/assets/images/backpic/back-2.jpg') center/cover;
  border-radius:var(--r-lg);
  padding:clamp(32px,5vw,68px) clamp(24px,5vw,76px);
  color:var(--paper);
  position:relative;
  overflow:hidden;
}
.who-band::after{
  content:"";
  position:absolute;
  width:360px;height:360px;
  border:1px solid rgba(255,255,255,.08);
  border-radius:50%;
  right:-90px;top:-120px;
  pointer-events:none;
}
.who-band h2{color:var(--paper);margin-top:12px}
.who-band .who-desc{color:rgba(247,243,235,.68);margin-top:16px;max-width:46ch;font-size:15px}
.scenario-list{margin-top:14px}
.scenario-item{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:22px;
  padding-block:26px;
  border-bottom:1px solid rgba(255,255,255,.12);
  transition:background .2s ease;
}
.scenario-item:last-child{border-bottom:0;padding-bottom:4px}
.scenario-item:hover{background:rgba(255,255,255,.03)}
.scenario-num{
  font-family:var(--font-num);
  font-size:28px;
  color:var(--accent);
  line-height:1.4;
}
.scenario-item h3{color:var(--paper);font-size:17px;margin-bottom:6px;line-height:1.6}
.scenario-item p{color:rgba(247,243,235,.62);font-size:14px;line-height:1.9}

/* ===== 启动四步 ===== */
.start-section{background:var(--paper-2);padding-block:var(--spacer)}
.start-slot{background:#fff;border-radius:var(--r-lg);padding:clamp(24px,4vw,56px);box-shadow:var(--shadow-1)}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(16px,2.2vw,32px);margin-top:34px}
.step{
  position:relative;
  border-top:3px solid var(--line);
  padding-top:22px;
  transition:border-color .25s,transform .2s;
}
.step:hover{border-top-color:var(--accent);transform:translateY(-3px)}
.step-number{
  font-family:var(--font-num);
  font-size:46px;
  line-height:1;
  color:rgba(16,68,59,.12);
  font-weight:700;
  display:block;
  transition:color .25s;
}
.step:hover .step-number{color:rgba(200,155,91,.5)}
.step h3{font-size:17px;color:var(--brand-dark);margin:12px 0 8px}
.step p{font-size:14px;color:var(--muted);line-height:1.9}
.start-footer-note{
  margin-top:36px;
  padding-top:20px;
  border-top:1px dashed var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  font-size:14px;
  color:var(--muted);
}
.start-footer-note strong{color:var(--brand-dark)}

/* ===== 文章索引错位网格 ===== */
.index-section{
  background:linear-gradient(180deg,var(--paper) 0%,#fff 18% 82%,var(--paper) 100%);
  padding-block:var(--spacer);
}
.article-grid.row{display:flex;flex-wrap:wrap}
.article-grid > .columns{float:none;display:flex;margin-bottom:44px}
.article-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  width:100%;
  display:flex;
  flex-direction:column;
  transition:box-shadow .3s ease,transform .3s ease,border-color .25s;
}
.article-card:hover{box-shadow:var(--shadow-2);transform:translateY(-4px);border-color:rgba(16,68,59,.2)}
.article-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--paper-2)}
.article-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.article-card:hover .article-media img{transform:scale(1.05)}
.article-badge{
  position:absolute;
  left:16px;top:16px;
  display:inline-flex;
  height:28px;
  padding:0 12px;
  align-items:center;
  background:rgba(16,68,59,.78);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  color:var(--paper);
  border-radius:var(--r-pill);
  font-size:12px;font-weight:700;
  border:1px solid rgba(255,255,255,.18);
}
.article-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1}
.article-body h3{font-size:19px;line-height:1.5;color:var(--brand-dark);transition:color .2s}
.article-card:hover .article-body h3{color:var(--brand-soft)}
.article-body .article-excerpt{
  font-size:14px;
  color:var(--muted);
  margin:10px 0 16px;
  line-height:1.85;
  flex:1;
}
.article-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  border-top:1px solid var(--line);
  padding-top:14px;
  font-size:12px;
  color:var(--muted);
}
.article-meta .save{color:var(--accent);font-weight:600}
.article-grid > .columns:nth-child(3n+2){transform:translateY(34px)}
.article-grid .more-line{margin-top:8px;text-align:center}
.more-btn{
  display:inline-flex;
  align-items:center;
  gap:4px;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:#fff;
  color:var(--brand-dark);
  font-weight:700;
  transition:border-color .2s,background .2s,box-shadow .2s;
}
.more-btn:hover{background:var(--brand);border-color:var(--brand);color:var(--paper);box-shadow:var(--shadow-1)}

/* ===== 热门词条区块 ===== */
.hot-section{background:var(--brand-dark);color:rgba(247,243,235,.8);padding-block:var(--spacer);position:relative;overflow:hidden}
.hot-section::before{
  content:"";position:absolute;width:520px;height:520px;border:1px solid rgba(255,255,255,.05);border-radius:50%;
  left:-140px;bottom:-220px;
}
.hot-section h2{color:var(--paper)}
.hot-section .eyebrow{color:rgba(247,243,235,.5)}
.hot-grid{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:1px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.1);
  margin-top:36px;
  position:relative;
  z-index:1;
}
.hot-item{
  background:var(--brand-dark);
  padding:clamp(20px,2vw,32px) clamp(16px,1.8vw,28px);
  transition:background .25s ease;
}
.hot-item:hover{background:rgba(255,255,255,.05)}
.hot-rank{font-family:var(--font-num);font-size:48px;line-height:1;color:var(--accent);display:block}
.hot-item h3{color:var(--paper);font-size:16px;margin:20px 0 8px;line-height:1.55}
.hot-item p{color:rgba(247,243,235,.55);font-size:13px;line-height:1.8}
.hot-item .hot-link{
  display:inline-block;margin-top:16px;font-size:13px;font-weight:700;color:var(--accent-bright);
  transition:gap .2s;
}
.hot-item .hot-link::after{content:" →"}
.hot-item:hover .hot-link{padding-left:2px}

/* ===== FAQ ===== */
.faq-section{padding-block:var(--spacer) 0}
.faq-head{max-width:680px;margin-bottom:44px}
.faq-list{max-width:860px}
.faq-item{
  background:rgba(255,255,255,.6);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  margin-bottom:12px;
  overflow:hidden;
  transition:box-shadow .25s,background .25s;
}
.faq-item:hover{background:#fff;box-shadow:var(--shadow-1)}
.faq-item[open]{background:#fff;border-color:rgba(16,68,59,.22)}
.faq-item summary{
  list-style:none;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px;
  cursor:pointer;
  padding:20px 24px;
  font-size:16px;
  font-weight:800;
  color:var(--brand-dark);
  line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  flex-shrink:0;
  width:28px;height:28px;
  border-radius:50%;
  background:rgba(16,68,59,.08);
  color:var(--brand);
  display:grid;
  place-items:center;
  font-size:20px;
  font-weight:400;
  line-height:1;
  transition:transform .3s,background .3s,color .3s;
}
.faq-item[open] summary::after{
  content:"−";
  transform:rotate(180deg);
  background:var(--brand);
  color:var(--paper);
}
.faq-answer{
  padding:0 24px 24px;
  border-top:1px dashed var(--line);
  margin-top:0;
}
.faq-answer p{padding-top:18px;font-size:15px;color:var(--muted);line-height:1.95}

/* ===== CTA ===== */
.cta-band{
  position:relative;
  margin-top:var(--spacer);
  padding:clamp(56px,9vw,120px) 0;
  background:url('/assets/images/backpic/back-3.jpg') center/cover;
  text-align:center;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,41,38,.86),rgba(16,68,59,.9));
}
.cta-inner{position:relative;z-index:1}
.cta-inner .eyebrow{justify-content:center;color:rgba(247,243,235,.56)}
.cta-inner .eyebrow::before{display:none}
.cta-inner h2{color:var(--paper);font-size:clamp(30px,4.6vw,54px);line-height:1.18;max-width:18em;margin-inline:auto}
.cta-inner .cta-sub{color:rgba(247,243,235,.68);max-width:52ch;margin-inline:auto;margin-top:18px;font-size:16px}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:32px}
.cta-note{margin-top:20px;font-size:13px;color:rgba(247,243,235,.4)}

/* ===== back top ===== */
.back-top{
  position:fixed;
  right:22px;bottom:24px;
  width:46px;height:46px;
  border-radius:50%;
  background:var(--brand-dark);
  color:var(--paper);
  border:1px solid rgba(255,255,255,.2);
  display:grid;place-items:center;
  cursor:pointer;
  box-shadow:var(--shadow-2);
  opacity:0;
  pointer-events:none;
  transform:translateY(8px);
  transition:opacity .25s,transform .25s,background .2s;
  z-index:60;
}
.back-top.show{opacity:1;pointer-events:auto;transform:none}
.back-top:hover{background:var(--brand);font-size:18px}
.back-top svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .trend-chip:nth-of-type(3){display:none}
  .cat-head-row{grid-template-columns:1fr;gap:24px;align-items:start}
  .cat-head-aside{border-left:2px solid var(--accent)}
  .featured-main{min-height:440px}
  .featured-side-list{margin-top:18px}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .hot-grid{grid-template-columns:repeat(3,1fr)}
  .hot-item:nth-child(n+4){border-top:1px solid rgba(255,255,255,.08)}
  .article-grid > .columns:nth-child(3n+2){transform:none}
  .article-grid > .columns:nth-child(2n){transform:translateY(22px)}
  .article-grid > .columns:nth-child(2n){margin-bottom:54px}
  .newsletter-row{grid-template-columns:1fr}
  .footer-cols{grid-template-columns:1.4fr 1fr 1fr}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:768px){
  body{font-size:15px}
  h1{font-size:clamp(34px,8vw,48px)}
  .section{padding-block:64px}
  .featured-main{min-height:370px}
  .featured-main-content h2{font-size:22px}
  .scenario-item{grid-template-columns:1fr;gap:8px;padding-block:20px}
  .scenario-num{font-size:22px}
  .article-grid > .columns:nth-child(2n){transform:none;margin-bottom:34px}
  .hot-grid{grid-template-columns:repeat(2,1fr)}
  .hot-item:nth-child(n+3){border-top:1px solid rgba(255,255,255,.08)}
  .faq-item summary{font-size:15px;padding:17px 20px}
  .faq-answer{padding:0 20px 20px}
  .footer-cols{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
  .category-nav{gap:22px}
  .nav-link{font-size:14px}
  .brand-name{font-size:20px}
  .brand-mark{width:32px;height:32px;font-size:17px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:520px){
  .header-tools .trend-chip{display:none}
  .search-mini input{width:44px;padding:0 0 0 14px;border-color:transparent;background:transparent}
  .search-mini input:focus{width:140px;border-color:var(--line);background:#fff;padding-left:34px}
  .search-glyph{left:16px}
  .header-cta{padding:0 14px}
  .steps-grid{grid-template-columns:1fr}
  .hot-grid{grid-template-columns:1fr}
  .hot-item:nth-child(n+2){border-top:1px solid rgba(255,255,255,.08)}
  .footer-cols{grid-template-columns:1fr}
  .footer-col h3{margin-bottom:10px}
  .newsletter-row{padding-bottom:32px}
  .footer-cols{padding-block:32px 20px}
  .cta-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important;transition:none!important;animation:none!important}
  .js [data-reveal]{opacity:1;transform:none}
}