/* roulang page: index */
/* ========== 设计变量与 Reset ========== */
:root{
  --bg-paper:#F7F4EF;
  --bg-cream:#F1ECE3;
  --bg-deep:#121015;
  --bg-deep2:#1B161D;
  --accent:#B83A48;
  --accent-deep:#9C2C3B;
  --accent-light:#D87A86;
  --gold:#C8A87C;
  --gold-soft:rgba(200,168,124,.24);
  --ink:#201B20;
  --muted:#6F666D;
  --light-line:rgba(32,27,32,.1);
  --white-line:rgba(255,255,255,.16);
  --paper-card:#FDFBF7;
  --shadow: 0 1px 0 rgba(32,27,32,.02), 0 8px 24px rgba(32,27,32,.04);
  --radius:10px;
  --radius-sm:6px;
  --content:1240px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-display:"Songti SC","SimSun","Noto Serif SC",Georgia,serif;
}
*,
*::before,
*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg-paper);
  -webkit-font-smoothing:antialiased;
  word-break:break-word;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
.container{max-width:var(--content);margin-inline:auto;padding-inline:24px}
.section{padding:80px 0}
.section--cream{background:var(--bg-cream)}
.section--deep{background:var(--bg-deep);color:#F5F2ED}
.section--paper{background:var(--bg-paper)}
.section-head{margin-bottom:48px}
.section-head__kicker{
  font-size:13px;
  letter-spacing:.22em;
  color:var(--gold);
  background:rgba(200,168,124,.1);
  border:1px solid rgba(200,168,124,.22);
  padding:6px 14px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  border-radius:100px;
  font-weight:600;
}
.section--deep .section-head__kicker{color:var(--gold);border-color:rgba(200,168,124,.35);background:rgba(200,168,124,.08)}
.section-head h2{
  font-family:var(--font-display);
  font-size:clamp(28px,3.8vw,40px);
  line-height:1.3;
  margin:18px 0 14px;
  font-weight:700;
  letter-spacing:.01em;
}
.section-head p{color:var(--muted);max-width:760px;font-size:15px;line-height:1.9}
.section--deep .section-head p{color:rgba(245,242,237,.68)}
.center{text-align:center}
.mx-auto{margin-inline:auto}

/* ========== 按钮 ========== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:10px 28px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  cursor:pointer;
  font-weight:600;
  font-size:15px;
  line-height:1.2;
  transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
  white-space:nowrap;
}
.btn:focus-visible,.nav-links a:focus-visible,.faq-q:focus-visible,.form-control:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(184,58,72,.18)}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{background:transparent;border-color:rgba(32,27,32,.24);color:var(--ink)}
.btn-secondary:hover{border-color:var(--ink);background:rgba(32,27,32,.04);transform:translateY(-1px)}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.32);color:#fff}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08);transform:translateY(-2px)}
.section--deep .btn-secondary,.category-cta .btn-ghost{border-color:rgba(255,255,255,.32);color:#fff}
.section--deep .btn-secondary:hover,.category-cta .btn-ghost:hover{background:rgba(255,255,255,.06);border-color:#fff}

/* ========== 导航 ========== */
.site-header{
  position:relative;
  top:0;left:0;right:0;
  z-index:100;
  background:var(--bg-deep);
  color:#F5F2ED;
  border-bottom:1px solid rgba(255,255,255,.07);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:78px;
  gap:20px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.brand-text{
  font-family:var(--font-display);
  font-size:29px;
  font-weight:800;
  letter-spacing:.08em;
  line-height:1;
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border:1px solid #fff;
  border-radius:3px;
  font-family:var(--font-display);
  font-size:17px;
  font-weight:800;
  color:var(--gold);
  background:rgba(255,255,255,.04);
}
.nav-main{
  display:flex;
  align-items:center;
  gap:22px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:32px;
  margin-right:10px;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:12px 2px 10px;
  color:inherit;
  opacity:.86;
  font-size:15px;
  font-weight:500;
  transition:opacity .2s var(--ease);
}
.nav-links a:hover{opacity:1}
.nav-links a::after{
  content:"";
  position:absolute;
  bottom:0;
  left:0;
  height:1.6px;
  width:0;
  background:var(--gold);
  border-radius:2px;
  transition:width .3s var(--ease);
}
.nav-links a.active::after,.nav-links a:hover::after{width:100%}
.nav-links a.active{opacity:1;color:var(--gold)}
.nav-cta{margin-left:8px}
.nav-cta .btn{
  min-height:40px;
  padding:7px 18px;
  font-size:14px;
}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.04);
  border-radius:8px;
  cursor:pointer;
  padding:0;
  line-height:0;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  transition:border-color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--gold)}
.nav-toggle span{
  display:block;
  width:20px;
  height:1.5px;
  background:#fff;
  border-radius:2px;
  transition:transform .25s var(--ease),opacity .2s;
}
.site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.site-header.nav-open .nav-toggle span:nth-child(2){opacity:0}
.site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
@media (max-width:900px){
  .nav-toggle{display:flex}
  .nav-main{
    position:absolute;
    top:78px;
    left:0;right:0;
    background:var(--bg-deep);
    border-bottom:1px solid rgba(255,255,255,.12);
    box-shadow:0 18px 32px rgba(0,0,0,.2);
    display:block;
    max-height:0;
    overflow:hidden;
    visibility:hidden;
    opacity:0;
    transition:max-height .35s var(--ease),opacity .3s,visibility .3s;
  }
  .site-header.nav-open .nav-main{
    visibility:visible;
    opacity:1;
    max-height:400px;
  }
  .nav-links{
    display:block;
    padding:20px 24px 10px;
    margin:0;
  }
  .nav-links a{
    display:block;
    padding:14px 0;
    border-bottom:1px solid rgba(255,255,255,.07);
    font-size:16px;
  }
  .nav-links a::after{display:none}
  .nav-cta{
    padding:16px 24px 26px;
  }
  .nav-cta .btn{width:100%}
}

/* ========== 分类页头部 ========== */
.category-hero{
  background:var(--bg-cream);
  border-bottom:1px solid var(--light-line);
  padding:58px 0 52px;
  position:relative;
}
.category-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(90deg,rgba(18,16,21,.03) 1px,transparent 1px);
  background-size:120px 100%;
  pointer-events:none;
}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:30px;
}
.crumbs a{color:var(--muted);transition:color .2s}
.crumbs a:hover{color:var(--accent)}
.crumbs .sep{opacity:.6}
.crumbs .current{color:var(--ink)}
.category-title-wrap{
  display:grid;
  grid-template-columns:1fr auto;
  gap:30px;
  align-items:end;
  position:relative;
  z-index:2;
}
.category-title-wrap .eyebrow{
  font-size:13px;
  letter-spacing:.2em;
  color:var(--gold);
  margin-bottom:16px;
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.category-title-wrap h1{
  font-family:var(--font-display);
  font-size:clamp(32px,4.4vw,48px);
  line-height:1.3;
  color:var(--ink);
  margin-bottom:16px;
  max-width:900px;
}
.category-title-wrap .lead{
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
  max-width:820px;
}
.category-hero__cta{
  display:flex;
  flex-direction:column;
  gap:14px;
  align-items:flex-end;
  white-space:nowrap;
}
@media (max-width:900px){
  .category-title-wrap{grid-template-columns:1fr}
  .category-hero__cta{flex-direction:row;flex-wrap:wrap;align-items:center}
}

/* ========== 分类内容：左目录 + 右内容 ========== */
.category-layout{
  display:grid;
  grid-template-columns:280px 1fr;
  gap:64px;
  align-items:start;
  margin-top:80px;
}
.filter-aside{
  background:var(--paper-card);
  border:1px solid var(--light-line);
  border-radius:var(--radius);
  position:sticky;
  top:24px;
  overflow:hidden;
}
.filter-aside__title{
  background:var(--bg-deep);
  color:#fff;
  padding:18px 22px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.06em;
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.filter-aside__title span{color:var(--gold);font-family:Georgia,serif;font-size:14px}
.filter-list{padding:10px 20px 22px}
.filter-list a{
  display:grid;
  grid-template-columns:1fr auto;
  gap:12px;
  align-items:center;
  padding:13px 0;
  border-bottom:1px solid rgba(32,27,32,.06);
  color:var(--muted);
  font-size:14px;
  transition:color .2s,padding-left .2s;
}
.filter-list a:hover{color:var(--accent);padding-left:6px}
.filter-list a.active{color:var(--accent);font-weight:600}
.filter-list a .count{font-family:Georgia,serif;font-size:12px;color:var(--muted)}
.filter-list a.active .count{color:var(--accent)}
.filter-aside .help{
  border-top:1px solid var(--light-line);
  background:rgba(200,168,124,.08);
  padding:20px 22px 24px;
}
.filter-aside .help b{
  display:flex;
  align-items:center;
  gap:6px;
  color:var(--ink);
  font-size:14px;
  margin-bottom:8px;
}
.filter-aside .help p{
  font-size:12px;
  color:var(--muted);
  line-height:1.8;
}
.content-main{
  min-width:0;
}
.content-main .top-line{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-bottom:24px;
}
.content-main .top-line .bar-title{
  font-family:var(--font-display);
  font-size:22px;
  font-weight:700;
  color:var(--ink);
  display:inline-flex;
  align-items:center;
  gap:12px;
}
.content-main .top-line .bar-title::before{
  content:"";
  width:6px;height:6px;
  background:var(--accent);
  border-radius:2px;
}
.content-main .line-note{font-size:13px;color:var(--muted)}
/* 置顶大幅条目 */
.feature-entry{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:20px;
  background:var(--bg-deep);
  border-radius:var(--radius);
  overflow:hidden;
  color:#F5F2ED;
  margin-bottom:36px;
  box-shadow:0 18px 32px rgba(18,16,21,.14);
}
.feature-entry__img{height:100%;min-height:210px;position:relative}
.feature-entry__img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.feature-entry__body{padding:30px 26px 28px;display:flex;flex-direction:column}
.feature-entry__body .pill{
  display:inline-flex;
  width:max-content;
  padding:4px 12px;
  border:1px solid rgba(200,168,124,.5);
  border-radius:100px;
  font-size:12px;
  color:var(--gold);
  margin-bottom:14px;
}
.feature-entry__body h3{
  font-family:var(--font-display);
  font-size:22px;
  line-height:1.45;
  color:#fff;
  margin-bottom:14px;
}
.feature-entry__body p{
  color:rgba(245,242,237,.68);
  font-size:14px;
  line-height:1.85;
  flex:1;
}
.feature-entry__meta{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid rgba(255,255,255,.13);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.feature-entry__meta .from{font-size:13px;color:rgba(245,242,237,.56)}
.feature-entry__meta .btn{padding:8px 16px;min-height:36px;font-size:13px}
/* 列表式横向条目 */
.entry-list{display:grid;margin-bottom:44px}
.entry-row{
  display:grid;
  grid-template-columns:52px 1fr auto;
  gap:26px;
  padding:24px 0;
  border-bottom:1px solid var(--light-line);
  align-items:center;
  transition:transform .2s var(--ease),background .2s;
}
.entry-row:hover{transform:translateX(4px)}
.entry-row .row-idx{
  font-family:Georgia,serif;
  font-size:22px;
  color:var(--gold);
  text-align:center;
}
.entry-row .row-main .row-title{
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:6px;
  transition:color .2s;
}
.entry-row:hover .row-title{color:var(--accent)}
.entry-row .row-main .row-summary{
  color:var(--muted);
  font-size:14px;
  line-height:1.8;
  max-width:640px;
}
.entry-row .row-meta{
  font-size:12px;
  color:var(--muted);
  display:grid;
  gap:4px;
  text-align:right;
}
.entry-row .go{
  color:var(--accent);
  font-size:18px;
  display:inline-block;
}
@media (max-width:760px){
  .entry-row{grid-template-columns:1fr;gap:10px;padding:20px 0}
  .entry-row .row-idx{text-align:left}
  .entry-row .row-meta{text-align:left}
}
/* 横向卡片四枚 */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  margin-bottom:34px;
}
.mini-card{
  background:var(--paper-card);
  border:1px solid rgba(32,27,32,.07);
  border-radius:var(--radius-sm);
  overflow:hidden;
  transition:box-shadow .25s var(--ease),transform .25s var(--ease);
}
.mini-card:hover{
  box-shadow:0 16px 28px rgba(32,27,32,.08);
  transform:translateY(-4px);
}
.mini-card img{width:100%;height:150px;object-fit:cover;transition:transform .5s var(--ease)}
.mini-card .mc-body{padding:18px 18px 20px}
.mini-card .mc-body .meta{font-size:12px;color:var(--muted);display:flex;gap:8px;margin-bottom:8px}
.mini-card .mc-body h3{font-size:16px;line-height:1.5;color:var(--ink);margin-bottom:6px}
.mini-card .mc-body p{font-size:13px;color:var(--muted);line-height:1.8}
@media (max-width:1100px){
  .card-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .category-layout{grid-template-columns:1fr;margin-top:34px;gap:40px}
  .filter-aside{position:relative;top:0}
  .card-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .card-grid{grid-template-columns:1fr}
}

/* ========== 延伸子分类 ========== */
.extension-grid{
  display:grid;
  grid-template-columns:1fr 1fr 1fr;
  grid-template-rows:auto auto;
  gap:18px;
}
.ext-card{
  border-radius:var(--radius);
  padding:34px 28px;
  background-size:cover;
  background-position:center;
  position:relative;
  overflow:hidden;
  border:1px solid rgba(32,27,32,.06);
  min-height:140px;
  color:#fff;
}
.ext-card::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,rgba(18,16,21,.84),rgba(18,16,21,.4) 70%);
  z-index:1;
}
.ext-card:first-child{grid-column:span 2;grid-row:span 2;min-height:280px}
.ext-card > *{position:relative;z-index:2}
.ext-card .ext-kicker{
  font-size:12px;
  letter-spacing:.18em;
  color:var(--gold);
  margin-bottom:10px;
}
.ext-card h3{
  font-family:var(--font-display);
  font-size:24px;
  line-height:1.4;
  color:#fff;
  margin-bottom:10px;
}
.ext-card:not(:first-child) h3{font-size:18px}
.ext-card p{
  color:rgba(245,242,237,.72);
  font-size:13px;
  line-height:1.8;
  max-width:560px;
  margin-bottom:18px;
}
.ext-card .enter{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:#fff;
  font-size:14px;
  font-weight:600;
}
.ext-card .enter:hover span{transform:translateX(4px)}
.ext-card .enter span{transition:transform .2s}
@media (max-width:1000px){
  .extension-grid{grid-template-columns:1fr}
  .ext-card:first-child{grid-column:span 1;grid-row:span 1}
}

/* ========== FAQ ========== */
.faq-wrap{
  display:grid;
  grid-template-columns:1fr;
  gap:0;
  align-items:start;
}
.faq-item{
  border-bottom:1px solid var(--light-line);
}
.faq-q{
  width:100%;
  display:flex;
  gap:18px;
  align-items:center;
  border:none;
  background:none;
  text-align:left;
  padding:24px 2px;
  cursor:pointer;
  min-height:56px;
  transition:padding .22s var(--ease);
}
.faq-q:hover{padding-left:8px}
.faq-q .idx{
  font-family:Georgia,serif;
  color:var(--gold);
  font-size:13px;
  flex-shrink:0;
}
.faq-q .q-text{
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  line-height:1.55;
  flex:1;
  transition:color .2s;
}
.faq-q .q-icon{font-size:22px;color:var(--muted);transition:transform .3s var(--ease),color .2s;line-height:1}
.faq-item.open .faq-q .q-icon{transform:rotate(45deg);color:var(--accent)}
.faq-item.open .faq-q .q-text{color:var(--accent)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .4s var(--ease);
}
.faq-a p{
  color:var(--muted);
  font-size:15px;
  line-height:1.9;
  padding:0 38px 22px;
}

/* ========== 分类 CTA / 页脚 ========== */
.category-cta{
  background:var(--bg-deep);
  padding:58px 0;
  color:#F5F2ED;
}
.cta-inner{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:50px;
  align-items:center;
}
.cta-inner .eyebrow{font-size:13px;letter-spacing:.16em;color:var(--gold);margin-bottom:12px}
.cta-inner h2{font-family:var(--font-display);font-size:clamp(28px,4vw,42px);line-height:1.4;color:#fff;margin-bottom:16px}
.cta-inner p{color:rgba(245,242,237,.7);font-size:15px;line-height:1.9;margin-bottom:24px}
.cta-inner .btns{display:flex;gap:14px;flex-wrap:wrap}
@media (max-width:900px){
  .cta-inner{grid-template-columns:1fr}
}

.site-footer{
  background:var(--bg-deep);
  color:rgba(245,242,237,.78);
  padding:54px 0 30px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr .8fr 1fr;
  gap:50px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.09);
}
.footer-brand .brand{color:#F5F2ED;margin-bottom:16px}
.footer-brand p{
  font-size:14px;
  color:rgba(245,242,237,.6);
  max-width:360px;
  line-height:1.9;
}
.footer-title{
  color:#F5F2ED;
  font-size:15px;
  margin-bottom:18px;
  letter-spacing:.06em;
}
.footer-links li{margin-bottom:12px}
.footer-links a{
  font-size:14px;
  color:rgba(245,242,237,.68);
  position:relative;
  transition:padding .2s,color .2s;
}
.footer-links a::before{
  content:"";
  width:0;
  height:1px;
  background:var(--gold);
  position:absolute;
  left:0;
  bottom:0;
  transition:width .2s var(--ease);
}
.footer-links a:hover{
  color:var(--gold);
  padding-left:16px;
}
.footer-links a:hover::before{width:10px}
.footer-note{
  font-size:13px;
  line-height:1.8;
  color:rgba(245,242,237,.46);
}
.footer-bottom{
  padding-top:22px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:8px;
  font-size:13px;
  color:rgba(245,242,237,.46);
}
@media (max-width:800px){
  .footer-grid{grid-template-columns:1fr;gap:36px}
}
.pill{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  border:1px solid rgba(200,168,124,.35);
  border-radius:100px;
  font-size:12px;
  color:#8C652B;
  background:rgba(200,168,124,.08);
}
.section--deep .pill{color:var(--gold);border-color:rgba(200,168,124,.32)}
@media (max-width:640px){
  .section{padding:60px 0}
  .container{padding-inline:18px}
  .feature-entry{grid-template-columns:1fr}
  .feature-entry__img{min-height:190px;position:relative}
}

/* roulang page: category1 */
/* ========== 设计变量与 Reset ========== */
:root{
  --bg-paper:#F7F4EF;
  --bg-cream:#F1ECE3;
  --bg-deep:#121015;
  --bg-deep2:#1B161D;
  --accent:#B83A48;
  --accent-deep:#9C2C3B;
  --accent-light:#D87A86;
  --gold:#C8A87C;
  --gold-soft:rgba(200,168,124,.24);
  --ink:#201B20;
  --muted:#6F666D;
  --light-line:rgba(32,27,32,.1);
  --white-line:rgba(255,255,255,.16);
  --paper-card:#FDFBF7;
  --shadow: 0 1px 0 rgba(32,27,32,.02), 0 8px 24px rgba(32,27,32,.04);
  --radius:10px;
  --radius-sm:6px;
  --content:1240px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-display:"Songti SC","SimSun","Noto Serif SC",Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg-paper);
  -webkit-font-smoothing:antialiased;
  word-break:break-word;
}
body.nav-locked{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding-left:0;list-style:none}
.container{max-width:var(--content);margin-inline:auto;padding-inline:24px}
.section{padding:80px 0}
.section--cream{background:var(--bg-cream)}
.section--deep{background:var(--bg-deep);color:#F5F2ED}
.section--paper{background:var(--bg-paper)}
[hidden]{display:none !important}

.section-head{margin-bottom:48px}
.section-head__kicker{
  font-size:13px;
  letter-spacing:.22em;
  color:var(--gold);
  background:rgba(200,168,124,.1);
  border:1px solid rgba(200,168,124,.22);
  padding:6px 14px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  border-radius:100px;
  font-weight:600;
}
.section-head h2{
  font-family:var(--font-display);
  font-size:clamp(28px,3.8vw,40px);
  line-height:1.3;
  margin:18px 0 14px;
  font-weight:700;
  letter-spacing:.01em;
}
.section-head p,.section-head .section-intro{color:var(--muted);max-width:760px;font-size:15px;line-height:1.9}
.section--deep .section-head p{color:rgba(245,242,237,.68)}

/* ========== 按钮 ========== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:10px 28px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  cursor:pointer;
  font-weight:600;
  font-size:15px;
  line-height:1.2;
  transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
  white-space:nowrap;
}
.btn:focus-visible,.nav-links a:focus-visible,.filter-btn:focus-visible,.faq-summary:focus-visible,.text-link:focus-visible,.sub-block:focus-visible,.form-control:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(184,58,72,.18)}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{background:transparent;border-color:rgba(32,27,32,.24);color:var(--ink)}
.btn-secondary:hover{border-color:var(--ink);background:rgba(32,27,32,.04);transform:translateY(-1px)}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.32);color:#fff}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08);transform:translateY(-2px)}

/* ========== 导航 ========== */
.site-header{
  position:relative;
  top:0;left:0;right:0;
  z-index:120;
  background:var(--bg-deep);
  color:#F5F2ED;
  border-bottom:1px solid rgba(255,255,255,.07);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:78px;
  gap:20px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.brand-text{
  font-family:var(--font-display);
  font-size:29px;
  font-weight:800;
  letter-spacing:.08em;
  line-height:1;
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border:1px solid #fff;
  border-radius:3px;
  font-family:var(--font-display);
  font-size:17px;
  font-weight:800;
  color:var(--gold);
  background:rgba(255,255,255,.04);
}
.nav-main{
  display:flex;
  align-items:center;
  gap:22px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:32px;
  margin-right:10px;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:12px 2px 10px;
  color:inherit;
  opacity:.86;
  font-size:15px;
  font-weight:500;
  transition:opacity .2s var(--ease);
}
.nav-links a:hover{opacity:1}
.nav-links a::after{
  content:"";
  position:absolute;
  bottom:0;
  left:0;
  height:1.6px;
  width:0;
  background:var(--gold);
  border-radius:2px;
  transition:width .3s var(--ease);
}
.nav-links a.active::after,.nav-links a:hover::after{width:100%}
.nav-links a.active{opacity:1;color:var(--gold)}
.nav-cta{margin-left:8px}
.nav-cta .btn{min-height:40px;padding:7px 18px;font-size:14px}

/* ========== 通用区块组件 ========== */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.tag{
  display:inline-flex;
  align-items:center;
  font-size:12px;
  letter-spacing:.06em;
  line-height:1;
  border:1px solid var(--light-line);
  padding:7px 12px;
  border-radius:100px;
  color:var(--muted);
  background:rgba(32,27,32,.015);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.tag--gold{border-color:rgba(184,58,72,.28);color:var(--accent-deep)}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:600;
  font-size:14px;
  color:var(--accent);
  padding:6px 0;
  transition:gap .2s var(--ease),color .2s var(--ease);
}
.text-link:hover{gap:12px;color:var(--accent-deep)}
.text-link svg,.text-link .text-link__arrow{transition:transform .2s var(--ease)}

/* ========== 分类页频道头部 ========== */
.category-band{
  background:var(--bg-paper);
  border-bottom:1px solid var(--light-line);
  padding:42px 0 54px;
}
.crumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:26px;
}
.crumbs a{opacity:.9;transition:color .2s var(--ease)}
.crumbs a:hover{color:var(--accent)}
.crumb-sep{opacity:.5}
.band-line{
  width:64px;
  height:2px;
  background:var(--gold);
  border-radius:2px;
  margin-bottom:26px;
}
.category-heading{
  display:grid;
  grid-template-columns:minmax(0,1.3fr) minmax(280px,.7fr);
  gap:40px;
  align-items:end;
}
.category-heading h1{
  font-family:var(--font-display);
  font-size:clamp(36px,5.6vw,56px);
  line-height:1.2;
  font-weight:700;
  letter-spacing:.02em;
  margin-top:16px;
}
.category-heading .lead{
  color:var(--muted);
  font-size:15px;
  line-height:1.95;
  max-width:720px;
  margin-top:18px;
}
.category-heading__cta{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:flex-start;
}
.channel-points{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  border-top:1px solid var(--light-line);
  margin-top:46px;
  padding-top:4px;
}
.channel-points li{
  padding:26px 18px 0 0;
  position:relative;
}
.channel-points li::after{
  content:"";
  position:absolute;
  left:0;
  top:34px;
  width:18px;
  height:1px;
  background:var(--gold);
}
.channel-points strong{
  font-family:var(--font-display);
  font-size:22px;
  display:block;
  letter-spacing:.02em;
  margin-bottom:6px;
}
.channel-points span{
  font-size:13px;
  color:var(--muted);
}

/* ========== 不对称主内容区 ========== */
.cat-gallery{padding:72px 0 90px}
.cat-layout{
  display:grid;
  grid-template-columns:255px minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.filter-panel{
  position:sticky;
  top:24px;
  background:var(--bg-cream);
  border:1px solid var(--light-line);
  border-radius:var(--radius);
  padding:26px 22px;
}
.filter-title{
  font-family:var(--font-display);
  font-size:20px;
  font-weight:700;
  letter-spacing:.02em;
}
.filter-hint{
  font-size:13px;
  color:var(--muted);
  margin:6px 0 20px;
}
.filter-list{
  display:flex;
  flex-direction:column;
  gap:4px;
}
.filter-btn{
  display:block;
  width:100%;
  text-align:left;
  background:transparent;
  border:0;
  padding:11px 13px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  cursor:pointer;
  line-height:1.4;
  border-left:2px solid transparent;
  transition:background .2s var(--ease),border-color .2s var(--ease),padding-left .2s var(--ease);
}
.filter-btn:hover{
  background:rgba(184,58,72,.05);
  border-left-color:var(--gold);
}
.filter-btn.is-active{
  background:rgba(184,58,72,.08);
  border-left-color:var(--accent);
  color:var(--accent-deep);
  font-weight:600;
}
.filter-note{
  margin-top:22px;
  padding-top:18px;
  border-top:1px dashed var(--light-line);
  font-size:13px;
  color:var(--muted);
  display:flex;
  gap:6px;
  flex-wrap:wrap;
}
.filter-note strong{color:var(--accent);font-size:20px;line-height:1}

/* ========== 画廊卡片与列表 ========== */
.cat-results{min-width:0}
.result-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  margin-bottom:24px;
}
.result-head h2{
  font-family:var(--font-display);
  font-size:clamp(22px,2.4vw,28px);
  line-height:1.4;
}
.result-head p{color:var(--muted);font-size:14px}

.feature-card{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);
  background:var(--paper-card);
  border:1px solid var(--light-line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  margin-bottom:30px;
  transition:box-shadow .3s var(--ease);
}
.feature-card:hover{box-shadow:0 2px 0 rgba(32,27,32,.02),0 20px 38px rgba(32,27,32,.08)}
.feature-card__media{
  position:relative;
  min-height:300px;
  background:var(--bg-cream);
  overflow:hidden;
}
.feature-card__media img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .6s var(--ease);
}
.feature-card:hover .feature-card__media img{transform:scale(1.03)}
.feature-card__body{
  padding:32px 34px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.feature-card__body h3{
  font-family:var(--font-display);
  font-size:clamp(22px,2vw,28px);
  line-height:1.45;
  margin-bottom:14px;
}
.feature-card__body p{
  color:var(--muted);
  font-size:15px;
  line-height:1.9;
  margin-bottom:18px;
}

.list-row{
  display:grid;
  grid-template-columns:minmax(88px,140px) minmax(0,1fr);
  gap:28px;
  align-items:center;
  background:transparent;
  border-top:1px solid var(--light-line);
  border-bottom:1px solid var(--light-line);
  padding:26px 6px;
  margin-bottom:6px;
  transition:background .25s var(--ease);
}
.list-row:hover{background:rgba(255,255,255,.55)}
.list-row__no{
  font-family:var(--font-display);
  font-size:clamp(40px,5vw,64px);
  font-weight:700;
  color:transparent;
  -webkit-text-stroke:1px rgba(184,58,72,.35);
  line-height:1.05;
  letter-spacing:-.03em;
}
.list-row__body h3{
  font-family:var(--font-display);
  font-size:clamp(19px,2vw,24px);
  line-height:1.5;
  margin-bottom:8px;
}
.list-row__body > p{
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
  max-width:820px;
  margin-bottom:8px;
}
.list-row__meta{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--muted);
  margin-bottom:14px;
}
.list-row__meta span{display:inline-flex;align-items:center;gap:6px}
.text-link{padding-top:0}

.gallery-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:30px;
  padding:12px 0 34px;
}
.g-card{
  background:var(--paper-card);
  border:1px solid var(--light-line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:box-shadow .3s var(--ease);
}
.g-card:hover{box-shadow:0 2px 0 rgba(32,27,32,.02),0 18px 36px rgba(32,27,32,.08)}
.g-card__media{
  position:relative;
  aspect-ratio:4 / 3;
  background:var(--bg-cream);
  overflow:hidden;
}
.g-card__media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .6s var(--ease);
}
.g-card:hover .g-card__media img{transform:scale(1.05)}
.g-card__body{padding:22px 24px 26px}
.g-card__body h3{
  font-family:var(--font-display);
  font-size:21px;
  line-height:1.5;
  margin-bottom:10px;
}
.g-card__body p{
  color:var(--muted);
  font-size:14px;
  line-height:1.85;
  margin-bottom:14px;
}
.g-card__meta{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  font-size:12px;
  color:var(--muted);
}

.quote-strip{
  background:var(--bg-deep2);
  color:#F5F2ED;
  border-radius:var(--radius);
  padding:46px 50px;
  margin:24px 0 34px;
  position:relative;
  overflow:hidden;
}
.quote-strip::before{
  content:"“";
  position:absolute;
  top:-34px;
  left:22px;
  font-family:var(--font-display);
  font-size:190px;
  line-height:1;
  color:rgba(200,168,124,.13);
  pointer-events:none;
}
.quote-strip blockquote{
  position:relative;
  font-family:var(--font-display);
  font-size:clamp(20px,2.6vw,27px);
  line-height:1.7;
  max-width:820px;
}
.quote-strip cite{
  display:inline-block;
  margin-top:18px;
  font-style:normal;
  font-size:13px;
  letter-spacing:.18em;
  color:var(--gold);
}

/* ========== 数据与流程 ========== */
.metrics-band{
  background:
    linear-gradient(rgba(18,16,21,.86),rgba(18,16,21,.94)),
    url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
  border-top:1px solid var(--white-line);
  border-bottom:1px solid var(--white-line);
}
.metrics-band__head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:26px;
  flex-wrap:wrap;
  margin-bottom:40px;
}
.metrics-band__head h2{
  max-width:560px;
  font-family:var(--font-display);
  font-size:clamp(26px,3.5vw,38px);
  line-height:1.35;
}
.metrics-band__head p{
  max-width:400px;
  color:rgba(245,242,237,.62);
  font-size:14px;
  line-height:1.9;
}
.metrics-list{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  border-top:1px solid rgba(255,255,255,.16);
  border-left:1px solid rgba(255,255,255,.16);
}
.metrics-list__item{
  border-right:1px solid rgba(255,255,255,.16);
  border-bottom:1px solid rgba(255,255,255,.16);
  padding:30px 30px;
  min-height:190px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
}
.metrics-num{
  font-family:var(--font-display);
  font-size:clamp(46px,6vw,72px);
  font-weight:800;
  line-height:1;
  color:#fff;
  letter-spacing:-.02em;
  margin-top:14px;
}
.metrics-num small{
  font-size:.45em;
  letter-spacing:.06em;
  font-weight:600;
  color:var(--gold);
  margin-left:6px;
}
.metrics-list__item > p{
  color:rgba(245,242,237,.68);
  font-size:15px;
  line-height:1.7;
  max-width:220px;
}
.metrics-item-index{
  font-size:12px;
  letter-spacing:.22em;
  color:var(--gold);
  text-transform:uppercase;
}
.process-band{padding:96px 0}
.process-layout{
  display:grid;
  grid-template-columns:minmax(0,.95fr) minmax(0,1.55fr);
  gap:70px;
  align-items:start;
}
.process-layout .section-head{margin-bottom:24px}
.process-note{
  color:var(--muted);
  font-size:15px;
  line-height:1.95;
  position:sticky;
  top:28px;
}
.process-note .btn{margin-top:24px}
.process-list{
  border-top:1px solid var(--light-line);
}
.process-list li{
  display:grid;
  grid-template-columns:82px minmax(0,1fr);
  gap:24px;
  padding:28px 8px;
  border-bottom:1px solid var(--light-line);
  transition:background .25s var(--ease);
  position:relative;
}
.process-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:24%;
  width:3px;
  height:0;
  background:var(--accent);
  transition:height .3s var(--ease),top .3s var(--ease);
}
.process-list li:hover::before{height:52%;top:24%}
.process-list li:hover{background:rgba(184,58,72,.02)}
.process-list__no{
  font-family:var(--font-display);
  font-size:15px;
  letter-spacing:.12em;
  color:var(--gold);
  padding-top:8px;
}
.process-list h3{
  font-family:var(--font-display);
  font-size:21px;
  line-height:1.5;
  margin-bottom:8px;
}
.process-list p{
  color:var(--muted);
  font-size:15px;
  line-height:1.9;
  max-width:720px;
}

/* ========== 适用人群 ========== */
.audience-band{background:var(--bg-cream)}
.audience-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  border-top:1px solid var(--light-line);
  border-left:1px solid var(--light-line);
}
.audience-item{
  background:transparent;
  border-right:1px solid var(--light-line);
  border-bottom:1px solid var(--light-line);
  padding:28px 24px;
  min-height:220px;
  transition:background .25s var(--ease),transform .25s var(--ease);
}
.audience-item:hover{background:var(--paper-card);transform:translateY(-4px)}
.audience-item__icon{
  width:38px;
  height:38px;
  display:flex;
  align-items:center;
  justify-content:center;
  border:1px solid rgba(200,168,124,.5);
  border-radius:100px;
  color:var(--accent);
  font-family:var(--font-display);
  font-weight:700;
  margin-bottom:18px;
}
.audience-item h3{font-size:17px;line-height:1.5;margin-bottom:10px}
.audience-item p{color:var(--muted);font-size:14px;line-height:1.85}

/* ========== 延伸子分类 ========== */
.sub-channel{padding:90px 0}
.sub-grid{
  display:grid;
  grid-template-columns:repeat(6,minmax(0,1fr));
  gap:16px;
}
.sub-block{
  grid-column:span 2;
  padding:34px 30px;
  min-height:210px;
  background:var(--paper-card);
  border:1px solid var(--light-line);
  border-radius:var(--radius);
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.sub-block--wide{grid-column:span 3}
.sub-block:hover{
  transform:translateY(-4px);
  border-color:rgba(184,58,72,.25);
  box-shadow:var(--shadow);
}
.sub-block span.sub-label{
  font-size:13px;
  letter-spacing:.18em;
  color:var(--accent);
  display:block;
  margin-bottom:14px;
}
.sub-block h3{
  font-family:var(--font-display);
  font-size:22px;
  line-height:1.45;
  margin-bottom:12px;
}
.sub-block p{
  color:var(--muted);
  font-size:14px;
  line-height:1.8;
}
.sub-block__arrow{
  margin-top:24px;
  font-size:22px;
  color:var(--gold);
  font-weight:300;
  transition:transform .25s var(--ease);
}
.sub-block:hover .sub-block__arrow{transform:translateX(8px)}

/* ========== FAQ ========== */
.faq-section{padding-bottom:90px}
.faq-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  column-gap:44px;
}
.faq-item{
  border-bottom:1px solid var(--light-line);
  position:relative;
}
.faq-item::before{
  content:"";
  position:absolute;
  left:-1px;
  top:0;
  height:0;
  width:2px;
  background:var(--accent);
  transition:height .3s var(--ease);
}
.faq-item[open]::before{height:100%}
.faq-summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:22px 8px 22px 18px;
  font-weight:600;
  font-size:16px;
  line-height:1.6;
  min-height:56px;
}
.faq-summary::-webkit-details-marker{display:none}
.faq-summary .faq-icon{
  width:26px;
  height:26px;
  flex-shrink:0;
  border:1px solid rgba(184,58,72,.3);
  border-radius:100px;
  color:var(--accent);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  line-height:1;
  font-weight:300;
  transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
}
.faq-item[open] .faq-icon{
  background:var(--accent);
  color:#fff;
  transform:rotate(45deg);
}
.faq-answer{
  padding:0 8px 22px 18px;
  color:var(--muted);
  font-size:15px;
  line-height:1.9;
  max-width:560px;
}

/* ========== 收尾 CTA ========== */
.cat-cta{
  background:
    linear-gradient(rgba(18,16,21,.88),rgba(18,16,21,.96)),
    url('/assets/images/backpic/back-4.jpg') center/cover no-repeat;
  padding:96px 0;
}
.cat-cta__inner{
  display:grid;
  grid-template-columns:minmax(0,1.3fr) minmax(320px,.7fr);
  gap:56px;
  align-items:center;
}
.cat-cta h2{
  font-family:var(--font-display);
  font-size:clamp(28px,4vw,42px);
  line-height:1.4;
  margin:18px 0 16px;
}
.cat-cta p{
  color:rgba(245,242,237,.68);
  font-size:15px;
  line-height:1.9;
  max-width:680px;
}
.cat-cta__actions{
  display:flex;
  flex-direction:column;
  gap:14px;
  justify-content:center;
  padding-left:20px;
  border-left:1px solid rgba(255,255,255,.18);
}
.cat-cta__actions .btn{width:100%}

/* ========== 页脚 ========== */
.site-footer{
  background:var(--bg-deep);
  color:rgba(245,242,237,.8);
  border-top:1px solid rgba(255,255,255,.06);
}
.site-footer a{transition:color .2s var(--ease),opacity .2s var(--ease)}
.site-footer a:hover{color:var(--gold)}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr) minmax(0,1fr);
  gap:56px;
  padding:70px 0 52px;
}
.footer-brand p{
  color:rgba(245,242,237,.6);
  font-size:14px;
  line-height:1.9;
  max-width:360px;
  margin-top:18px;
}
.footer-title{
  font-size:13px;
  letter-spacing:.18em;
  color:var(--gold);
  margin-bottom:20px;
  font-weight:600;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:11px;
}
.footer-links a{
  position:relative;
  color:rgba(245,242,237,.78);
  font-size:15px;
  padding-left:14px;
}
.footer-links a::before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:5px;
  height:5px;
  border-radius:100px;
  background:var(--gold);
  opacity:.6;
}
.footer-links a.active{color:var(--gold)}
.footer-note{
  color:rgba(245,242,237,.58);
  font-size:14px;
  line-height:1.9;
  max-width:360px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0;
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(245,242,237,.5);
}

/* ========== 响应式 ========== */
@media (min-width:901px){
  .nav-toggle{display:none}
  .nav-main{
    position:static;
    max-height:none;
    overflow:visible;
    visibility:visible;
    opacity:1;
    background:transparent;
    box-shadow:none;
    display:flex;
  }
}
@media (max-width:1080px){
  .cat-layout{grid-template-columns:225px minmax(0,1fr);gap:32px}
  .audience-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .metrics-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sub-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sub-block--wide{grid-column:span 1}
  .sub-block:nth-child(1){grid-column:span 2}
  .sub-block:nth-child(2){grid-column:span 2}
  .sub-block:nth-child(3),.sub-block:nth-child(4){grid-column:span 1}
  .sub-block:nth-child(5){grid-column:span 2}
}
@media (max-width:900px){
  .nav-toggle{
    display:flex;
    width:42px;
    height:42px;
    border:1px solid rgba(255,255,255,.22);
    background:rgba(255,255,255,.04);
    border-radius:8px;
    cursor:pointer;
    padding:0;
    line-height:0;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:5px;
    transition:border-color .2s var(--ease);
  }
  .nav-toggle:hover{border-color:var(--gold)}
  .nav-toggle span{
    display:block;
    width:20px;
    height:1.5px;
    background:#fff;
    border-radius:2px;
    transition:transform .25s var(--ease),opacity .2s;
  }
  .site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
  .site-header.nav-open .nav-toggle span:nth-child(2){opacity:0}
  .site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
  .nav-main{
    position:absolute;
    top:78px;
    left:0;right:0;
    background:var(--bg-deep2);
    border-bottom:1px solid rgba(255,255,255,.12);
    box-shadow:0 18px 32px rgba(0,0,0,.2);
    display:block;
    max-height:0;
    overflow:hidden;
    visibility:hidden;
    opacity:0;
    padding:0 24px;
    transition:max-height .35s var(--ease),opacity .3s,visibility .3s;
  }
  .site-header.nav-open .nav-main{
    visibility:visible;
    opacity:1;
    max-height:420px;
    padding:18px 24px 24px;
  }
  .nav-links{
    flex-direction:column;
    align-items:flex-start;
    gap:6px;
    margin-right:0;
  }
  .nav-links a{display:block;width:100%;padding:11px 0;font-size:16px}
  .nav-links a::after{display:none}
  .nav-cta{margin-top:16px}
  .nav-cta .btn{border-color:rgba(255,255,255,.32);color:#fff;width:100%}
}
@media (max-width:960px){
  .category-heading{grid-template-columns:1fr;gap:24px}
  .process-layout{grid-template-columns:1fr;gap:34px}
  .process-note{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .cat-cta__inner{grid-template-columns:1fr;gap:32px}
  .cat-cta__actions{padding-left:0;border-left:0}
  .cat-cta__actions .btn{width:auto}
}
@media (max-width:860px){
  .cat-layout{display:block}
  .filter-panel{
    position:static;
    margin-bottom:36px;
    background:var(--bg-cream);
  }
  .filter-list{
    flex-wrap:nowrap;
    overflow-x:auto;
    flex-direction:row;
    padding-bottom:6px;
    margin:0 -6px;
    overscroll-behavior-x:contain;
    scrollbar-width:none;
  }
  .filter-list::-webkit-scrollbar{display:none}
  .filter-btn{
    width:auto;
    white-space:nowrap;
    border:1px solid var(--light-line);
    background:var(--paper-card);
    border-radius:100px;
    padding:8px 16px;
    flex-shrink:0;
    font-weight:500;
  }
  .filter-btn.is-active{
    background:var(--accent);
    color:#fff;
    border-color:var(--accent);
  }
  .filter-note{margin-top:14px}
  .channel-points{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:680px){
  .section{padding:60px 0}
  .container{padding-inline:18px}
  .category-heading h1{font-size:36px}
  .channel-points li{padding:20px 12px 0 0}
  .feature-card{grid-template-columns:1fr}
  .feature-card__media{min-height:220px}
  .feature-card__body{padding:22px 20px 24px}
  .list-row{grid-template-columns:1fr;gap:12px;padding:20px 4px}
  .list-row__no{font-size:40px}
  .gallery-grid{grid-template-columns:1fr;gap:20px}
  .metrics-list{grid-template-columns:1fr}
  .sub-grid{grid-template-columns:1fr}
  .sub-block--wide,
  .sub-block:nth-child(1),
  .sub-block:nth-child(2),
  .sub-block:nth-child(3),
  .sub-block:nth-child(4),
  .sub-block:nth-child(5){
    grid-column:span 1;
  }
  .faq-grid{grid-template-columns:1fr;column-gap:0}
  .audience-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding:52px 0 40px}
  .footer-bottom{flex-direction:column}
  .process-layout .section-head,.section-head{margin-bottom:32px}
  .quote-strip{padding:32px 24px}
  .metrics-list__item{padding:24px}
  .metrics-num{font-size:52px}
}

/* ========== 动效 ========== */
.reveal{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  .reveal{opacity:1;transform:none}
}