/* roulang page: index */
/* ==================== 设计变量 ==================== */
:root{
  --primary:#E23D28;
  --primary-deep:#B02A1B;
  --secondary:#0F3D3A;
  --secondary-2:#276B63;
  --accent:#F2A93B;
  --bg:#F7F4EF;
  --bg-alt:#EFF3F1;
  --surface:#FFFFFF;
  --text:#1F2422;
  --text-2:#5A6663;
  --text-inv:#F4F1EA;
  --border:#E3DED6;
  --border-inv:rgba(255,255,255,.16);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-img:12px;
  --shadow-1:0 2px 8px rgba(15,61,58,.06);
  --shadow-2:0 12px 32px rgba(15,61,58,.08);
  --shadow-3:0 18px 44px rgba(15,61,58,.16);
  --ease:.24s ease;
  --w:1200px;
  --font-cn:"PingFang SC","Noto Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}

/* ==================== 基础 reset ==================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden;}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:var(--primary);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease);}
a:hover{color:var(--primary-deep);}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(226,61,40,.16);}

/* 覆盖 Foundation 默认观感 */
.accordion,.accordion-item,.accordion-title,.accordion-content{background:transparent;}
.accordion-title::before{display:none !important;}
.button,button.button{background:var(--primary);}
.grid-container{max-width:var(--w);padding-left:40px;padding-right:40px;}
.grid-x.gx{margin-left:-12px;margin-right:-12px;}
.grid-x.gx>.cell{padding-left:12px;padding-right:12px;}

/* ==================== 通用容器与排版 ==================== */
.container{
  width:100%;max-width:var(--w);margin:0 auto;
  padding-left:40px;padding-right:40px;
}
.section{padding:96px 0;}
.section--alt{background:var(--bg-alt);}
.section--white{background:var(--surface);}
.section--dark{background:var(--secondary);color:var(--text-inv);}
.section--dark h2,.section--dark h3,.section--dark p{color:var(--text-inv);}

.section-head{display:flex;gap:22px;align-items:flex-start;margin-bottom:44px;}
.section-num{
  font-size:46px;line-height:1;font-weight:800;letter-spacing:.02em;
  color:rgba(15,61,58,.13);font-variant-numeric:tabular-nums;flex:0 0 auto;
  padding-top:2px;
}
.section--dark .section-num{color:rgba(242,169,59,.32);}
.section-title{font-size:clamp(24px,2.6vw,31px);line-height:1.35;font-weight:800;letter-spacing:.005em;}
.section-desc{margin-top:12px;color:var(--text-2);font-size:16px;max-width:760px;}
.section--dark .section-desc{color:rgba(244,241,234,.75);}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;font-weight:700;
  color:var(--primary);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);display:block;}

/* ==================== 按钮 ==================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-btn);
  font-size:15.5px;font-weight:700;letter-spacing:.01em;line-height:1.2;
  border:1.5px solid transparent;transition:all var(--ease);white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(226,61,40,.22);}
.btn-primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(226,61,40,.28);}
.btn-ghost{background:transparent;border-color:var(--secondary);color:var(--secondary);}
.btn-ghost:hover{background:rgba(15,61,58,.08);color:var(--secondary);}
.section--dark .btn-ghost{border-color:rgba(255,255,255,.55);color:var(--text-inv);background:rgba(255,255,255,.06);backdrop-filter:blur(6px);}
.section--dark .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;}
.btn-block{width:100%;}
.btn:disabled,.btn[disabled]{opacity:.45;filter:saturate(.5);transform:none;cursor:not-allowed;}

.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:700;color:var(--primary);
  border-bottom:1.5px solid rgba(226,61,40,.28);padding-bottom:2px;
}
.text-link:hover{border-bottom-color:var(--primary-deep);}
.text-link::after{content:"→";font-size:13px;}

/* ==================== 导航 ==================== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  transition:background-color .3s ease,box-shadow .3s ease,border-color .3s ease,height .3s ease;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.28);
  box-shadow:0 6px 26px rgba(15,61,58,.12);
}
.site-header .nav-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  height:76px;transition:height .3s ease;
}
.site-header.is-scrolled{
  background:#FFFFFF;
  border-bottom-color:var(--border);
  box-shadow:0 8px 24px rgba(15,61,58,.08);
  -webkit-backdrop-filter:blur(0);
  backdrop-filter:blur(0);
}
.site-header.is-scrolled .nav-inner{height:64px;}
.site-header.is-scrolled .brand-name,
.site-header.is-scrolled .brand-sub,
.site-header.is-scrolled .nav-link{color:var(--text);}
.site-header.is-scrolled .nav-link:hover{color:var(--primary);}
.site-header.is-scrolled .nav-link.is-active{color:var(--primary);}
.site-header.is-scrolled .nav-toggle span{background:var(--text);}

.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand:hover{color:inherit;}
.brand-mark{
  width:42px;height:42px;flex:0 0 auto;border-radius:11px;
  background:linear-gradient(160deg,var(--primary) 0%,var(--primary-deep) 100%);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(226,61,40,.28);
}
.brand-mark svg{width:22px;height:22px;display:block;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:16px;font-weight:800;color:#fff;letter-spacing:.01em;}
.brand-sub{font-size:11px;letter-spacing:.18em;color:rgba(255,255,255,.72);font-weight:600;}

.nav-links{display:flex;align-items:center;gap:30px;flex:1 1 auto;justify-content:center;}
.nav-link{
  position:relative;font-size:15px;font-weight:600;color:rgba(255,255,255,.92);
  padding:6px 2px;transition:color var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:var(--primary);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease);
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:#fff;font-weight:700;}

.nav-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.30);
  border-radius:999px;padding:7px 14px;transition:all var(--ease);
}
.nav-search input{
  width:104px;background:transparent;border:0;outline:none;font-size:13.5px;
  color:#fff;
}
.nav-search input::placeholder{color:rgba(255,255,255,.66);}
.nav-search svg{width:15px;height:15px;stroke:rgba(255,255,255,.8);fill:none;stroke-width:2;}
.site-header.is-scrolled .nav-search{background:var(--bg-alt);border-color:var(--border);}
.site-header.is-scrolled .nav-search input{color:var(--text);}
.site-header.is-scrolled .nav-search input::placeholder{color:var(--text-2);}
.site-header.is-scrolled .nav-search svg{stroke:var(--text-2);}

.nav-cta{padding:11px 20px;font-size:14.5px;}

.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  border:1px solid rgba(255,255,255,.30);
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:all var(--ease);}
.site-header.is-scrolled .nav-toggle{border-color:var(--border);}

.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,330px);z-index:80;
  background:rgba(15,61,58,.96);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  transform:translateX(102%);
  transition:transform .3s ease;
  padding:26px 24px 34px;
  display:flex;flex-direction:column;gap:10px;
  border-left:1px solid var(--border-inv);
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-head .brand-name{font-size:15px;}
.nav-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--border-inv);
  color:var(--text-inv);font-size:19px;line-height:1;display:flex;align-items:center;justify-content:center;
}
.nav-close:hover{background:rgba(255,255,255,.10);color:#fff;}
.drawer-link{
  display:block;padding:14px 4px;font-size:16px;font-weight:600;
  color:rgba(255,255,255,.9);border-bottom:1px solid var(--border-inv);
}
.drawer-link:hover,.drawer-link.is-active{color:var(--accent);}
.drawer-cta{margin-top:22px;}
.nav-scrim{
  position:fixed;inset:0;background:rgba(15,61,58,.42);z-index:70;
  opacity:0;pointer-events:none;transition:opacity .3s ease;
}
.nav-scrim.is-open{opacity:1;pointer-events:auto;}

/* ==================== Hero ==================== */
.hero{
  position:relative;overflow:hidden;
  min-height:600px;display:flex;align-items:center;
  padding:148px 0 96px;
  background-image:
    linear-gradient(100deg,rgba(15,61,58,.92) 0%,rgba(15,61,58,.74) 48%,rgba(15,61,58,.42) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(180deg,rgba(255,255,255,.05) 0 1px,transparent 1px 7px);
  pointer-events:none;opacity:.5;
}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:flex;flex-wrap:wrap;gap:52px;align-items:center;}
.hero-copy{flex:1 1 540px;max-width:660px;}
.hero-title{
  font-size:clamp(30px,4vw,46px);line-height:1.3;font-weight:800;
  letter-spacing:.01em;color:#fff;margin-top:20px;
}
.hero-title .hl{color:var(--accent);}
.hero-sub{
  margin-top:22px;font-size:17.5px;line-height:1.9;
  color:rgba(244,241,234,.86);max-width:600px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:34px;}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:14px 30px;margin-top:38px;
  padding-top:24px;border-top:1px solid var(--border-inv);
}
.hero-trust li{
  font-size:14px;color:rgba(244,241,234,.82);
  display:flex;align-items:center;gap:9px;
}
.hero-trust li::before{
  content:"";width:7px;height:7px;border-radius:2px;
  background:var(--accent);flex:0 0 auto;transform:rotate(45deg);
}
.hero-side{
  flex:0 1 320px;
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.26);
  border-radius:var(--radius-card);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  padding:26px 24px;color:var(--text-inv);
  box-shadow:var(--shadow-3);
}
.hero-side h2{font-size:16px;font-weight:800;letter-spacing:.02em;color:#fff;}
.hero-side .side-note{font-size:13.5px;color:rgba(244,241,234,.72);margin-top:6px;}
.side-list{margin-top:18px;display:flex;flex-direction:column;gap:14px;}
.side-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding-bottom:14px;border-bottom:1px solid var(--border-inv);
}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-idx{
  font-size:13px;font-weight:800;color:var(--accent);
  font-variant-numeric:tabular-nums;padding-top:3px;
}
.side-list strong{display:block;font-size:15px;color:#fff;font-weight:700;}
.side-list span{font-size:13.5px;color:rgba(244,241,234,.72);line-height:1.7;}

/* ==================== 指标看板 ==================== */
.metrics-wrap{margin-top:-58px;position:relative;z-index:5;}
.metrics{
  background:var(--surface);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);border:1px solid var(--border);
  display:grid;grid-template-columns:repeat(4,1fr);
  overflow:hidden;
}
.metric{
  padding:30px 26px;position:relative;
}
.metric+.metric::before{
  content:"";position:absolute;left:0;top:22%;bottom:22%;width:1px;background:var(--border);
}
.metric-num{
  font-size:clamp(34px,3.4vw,46px);font-weight:800;line-height:1.05;
  color:var(--secondary);font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.metric-num em{font-size:.5em;font-style:normal;font-weight:700;color:var(--text-2);margin-left:4px;}
.metric-label{margin-top:10px;font-size:14.5px;font-weight:700;color:var(--text);}
.metric-note{margin-top:4px;font-size:13px;color:var(--text-2);line-height:1.7;}

/* ==================== 服务矩阵 ==================== */
.matrix{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  display:flex;flex-direction:column;overflow:hidden;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(226,61,40,.30);}
.card-body{padding:26px 26px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.card-icon{
  width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(226,61,40,.10);border:1px solid rgba(226,61,40,.20);margin-bottom:18px;
}
.card-icon svg{width:22px;height:22px;stroke:var(--primary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.card h3{font-size:20px;font-weight:800;line-height:1.45;}
.card p{margin-top:12px;color:var(--text-2);font-size:15px;line-height:1.85;}
.card .text-link{margin-top:20px;}
.matrix-main{grid-column:span 6;grid-row:span 2;}
.matrix-main .card-media{position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:0;}
.matrix-main .card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.matrix-main .card-body{padding:30px 30px 28px;}
.matrix-main h3{font-size:24px;}
.matrix-small{grid-column:span 3;}

/* ==================== 流程 ==================== */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step;}
.flow-item{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:28px 24px;box-shadow:var(--shadow-1);position:relative;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.flow-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(226,61,40,.3);}
.flow-item::before{
  counter-increment:step;content:"0" counter(step);
  display:block;font-size:13px;font-weight:800;letter-spacing:.14em;
  color:var(--primary);margin-bottom:14px;font-variant-numeric:tabular-nums;
}
.flow-item h3{font-size:18px;font-weight:800;}
.flow-item p{margin-top:10px;font-size:14.5px;color:var(--text-2);line-height:1.85;}

/* ==================== 对比 ==================== */
.compare{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);padding:38px;position:relative;
}
.compare-head{display:grid;grid-template-columns:170px 1fr 1fr;gap:24px;align-items:end;margin-bottom:24px;}
.compare-head span{font-size:13px;letter-spacing:.1em;font-weight:700;color:var(--text-2);}
.compare-head .col-base{color:var(--secondary-2);}
.compare-head .col-plat{color:var(--primary);}
.compare-row{
  display:grid;grid-template-columns:170px 1fr 1fr;gap:24px;align-items:center;
  padding:16px 0;border-top:1px solid var(--border);
}
.compare-row:first-of-type{border-top:0;}
.compare-name{font-size:15px;font-weight:700;}
.bar{height:12px;border-radius:999px;background:var(--bg-alt);overflow:hidden;}
.bar i{display:block;height:100%;border-radius:999px;}
.bar-base i{background:rgba(15,61,58,.35);}
.bar-plat i{background:var(--primary);}
.compare-val{margin-top:7px;font-size:13px;color:var(--text-2);font-variant-numeric:tabular-nums;}
.vs-badge{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:52px;height:52px;border-radius:50%;background:var(--secondary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;letter-spacing:.06em;
  box-shadow:0 10px 24px rgba(15,61,58,.28);border:3px solid var(--surface);
}

/* ==================== 内容动态 ==================== */
.feed-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:32px;}
.feed-feature{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  display:flex;flex-direction:column;
}
.feed-feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(226,61,40,.3);}
.feed-media{aspect-ratio:16/9;overflow:hidden;}
.feed-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease;}
.feed-feature:hover .feed-media img{transform:scale(1.04);}
.feed-body{padding:26px 26px 28px;display:flex;flex-direction:column;flex:1 1 auto;}
.feed-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.badge{
  display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.06em;
  background:rgba(242,169,59,.16);color:#8A5A0B;border:1px solid rgba(242,169,59,.35);
}
.feed-time{font-size:13px;color:var(--text-2);font-variant-numeric:tabular-nums;}
.feed-title{font-size:22px;font-weight:800;line-height:1.5;margin-top:14px;}
.feed-title a{color:var(--text);}
.feed-title a:hover{color:var(--primary);}
.feed-summary{
  margin-top:12px;font-size:15px;color:var(--text-2);line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.feed-body .text-link{margin-top:20px;}
.feed-list{display:flex;flex-direction:column;}
.feed-item{
  display:flex;gap:18px;padding:20px 0;border-bottom:1px solid var(--border);
  transition:transform var(--ease);
}
.feed-item:first-child{padding-top:0;}
.feed-item:hover{transform:translateX(4px);}
.feed-thumb{
  width:132px;height:88px;flex:0 0 auto;border-radius:10px;overflow:hidden;
  background:var(--bg-alt);
}
.feed-thumb img{width:100%;height:100%;object-fit:cover;border-radius:10px;}
.feed-item-body{display:flex;flex-direction:column;justify-content:center;min-width:0;}
.feed-item-title{font-size:16.5px;font-weight:700;line-height:1.55;}
.feed-item-title a{color:var(--text);}
.feed-item-title a:hover{color:var(--primary);}
.feed-item-sum{
  margin-top:6px;font-size:13.5px;color:var(--text-2);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.feed-item-meta{margin-top:8px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  background:var(--surface);border:1px dashed var(--border);border-radius:var(--radius-card);
}
.empty-state .empty-icon{
  width:52px;height:52px;margin:0 auto 16px;border-radius:14px;
  background:var(--bg-alt);display:flex;align-items:center;justify-content:center;
}
.empty-state .empty-icon svg{width:24px;height:24px;stroke:var(--text-2);fill:none;stroke-width:1.8;}
.empty-state p{font-size:15px;color:var(--text-2);}
.empty-state .btn{margin-top:20px;}

/* ==================== FAQ ==================== */
.faq-wrap{max-width:960px;margin:0 auto;}
.accordion{border:0;background:transparent;}
.accordion-item{
  background:var(--surface);border:1px solid var(--border)!important;
  border-radius:var(--radius-card)!important;margin-bottom:16px;overflow:hidden;
  box-shadow:var(--shadow-1);transition:border-color var(--ease),box-shadow var(--ease);
}
.accordion-item:hover{border-color:rgba(226,61,40,.28)!important;box-shadow:var(--shadow-2);}
.accordion-title{
  background:transparent!important;border:0!important;
  padding:20px 54px 20px 54px!important;
  font-size:17px!important;font-weight:700;color:var(--text)!important;
  display:flex!important;align-items:center;gap:14px;position:relative;line-height:1.6;
}
.accordion-title::after{
  content:"";position:absolute;right:22px;top:50%;
  width:14px;height:2px;background:var(--text-2);transform:translateY(-50%);
  transition:all var(--ease);
}
.accordion-item.is-active .accordion-title::after{background:var(--primary);transform:translateY(-50%) rotate(90deg);opacity:0;}
.accordion-item.is-active .accordion-title::before{
  content:""!important;display:block!important;
  position:absolute;left:0;top:16px;bottom:16px;width:3px;
  background:var(--primary);border-radius:0 3px 3px 0;
}
.accordion-title .faq-num{
  position:absolute;left:22px;top:50%;transform:translateY(-50%);
  font-size:12px;font-weight:800;color:var(--accent);letter-spacing:.08em;
  font-variant-numeric:tabular-nums;
}
.accordion-content{
  border:0!important;background:transparent!important;
  padding:0 54px 22px!important;color:var(--text-2);font-size:15.5px;line-height:1.9;
}
.accordion-content p+p{margin-top:10px;}

/* ==================== 表单 ==================== */
.contact-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);padding:40px;display:grid;grid-template-columns:1.35fr 1fr;gap:44px;
}
.field{margin-bottom:20px;}
.field label{
  display:block;font-size:13px;font-weight:700;color:var(--text-2);
  letter-spacing:.04em;margin-bottom:8px;
}
.field label .req{color:var(--primary);margin-left:3px;}
.field input,.field select,.field textarea{
  width:100%;min-height:44px;padding:11px 14px;
  background:var(--bg);border:1.5px solid var(--border);border-radius:var(--radius-input);
  outline:none;transition:border-color var(--ease),box-shadow var(--ease),background-color var(--ease);
  font-size:15px;line-height:1.6;
}
.field textarea{min-height:118px;resize:vertical;padding-top:12px;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--primary);background:#fff;
  box-shadow:0 0 0 3px rgba(226,61,40,.13);
}
.field input::placeholder,.field textarea::placeholder{color:#A6AEAB;}
.contact-side{display:flex;flex-direction:column;gap:22px;}
.contact-side h3{font-size:19px;font-weight:800;}
.contact-side p{font-size:14.5px;color:var(--text-2);line-height:1.9;}
.info-list{display:flex;flex-direction:column;gap:14px;margin-top:4px;}
.info-list li{
  padding:16px 18px;background:var(--bg-alt);border-radius:12px;
  border:1px solid var(--border);
}
.info-list strong{display:block;font-size:14.5px;font-weight:800;}
.info-list span{display:block;margin-top:4px;font-size:13.5px;color:var(--text-2);line-height:1.8;}

/* ==================== CTA 带 ==================== */
.cta-band{
  background:var(--secondary);color:var(--text-inv);border-radius:var(--radius-card);
  padding:52px 48px;display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;
  box-shadow:var(--shadow-3);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;top:-40px;width:220px;height:220px;border-radius:50%;
  background:rgba(242,169,59,.14);
}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);font-weight:800;line-height:1.4;position:relative;z-index:2;}
.cta-band p{margin-top:10px;font-size:15.5px;color:rgba(244,241,234,.78);max-width:620px;position:relative;z-index:2;}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;}

/* ==================== 页脚 ==================== */
.site-footer{background:var(--secondary);color:var(--text-inv);padding:72px 0 0;margin-top:0;}
.footer-top{
  padding-bottom:30px;border-bottom:1px solid var(--border-inv);
  font-size:14.5px;color:rgba(244,241,234,.74);line-height:1.9;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding:46px 0 40px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-mark{width:38px;height:38px;border-radius:10px;}
.footer-brand .brand-name{color:#fff;font-size:15.5px;}
.footer-brand .brand-sub{color:rgba(244,241,234,.6);}
.footer-col p{font-size:14px;color:rgba(244,241,234,.7);line-height:1.9;}
.footer-col h4{
  font-size:14px;font-weight:800;letter-spacing:.1em;color:#fff;
  margin-bottom:18px;
}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14.5px;color:rgba(244,241,234,.76);}
.footer-links a:hover{color:var(--accent);}
.footer-info{display:flex;flex-direction:column;gap:12px;}
.footer-info li{font-size:14px;color:rgba(244,241,234,.72);display:flex;gap:10px;}
.footer-info li strong{color:#fff;font-weight:700;flex:0 0 auto;}
.footer-bottom{
  border-top:1px solid var(--border-inv);padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(244,241,234,.58);
}
.footer-bottom a{color:rgba(244,241,234,.7);}
.footer-bottom a:hover{color:var(--accent);}

/* ==================== 响应式 ==================== */
@media (max-width:1199px){
  .matrix-main{grid-column:span 12;grid-row:auto;}
  .matrix-small{grid-column:span 6;}
}
@media (max-width:1023px){
  .container{padding-left:32px;padding-right:32px;}
  .grid-container{padding-left:32px;padding-right:32px;}
  .section{padding:72px 0;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .metric+.metric::before{display:none;}
  .metric{border-top:1px solid var(--border);}
  .metric:nth-child(1),.metric:nth-child(2){border-top:0;}
  .metric:nth-child(even){border-left:1px solid var(--border);}
  .flow{grid-template-columns:repeat(2,1fr);}
  .feed-grid{grid-template-columns:1fr;gap:28px;}
  .contact-card{grid-template-columns:1fr;gap:32px;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .nav-links,.nav-search{display:none;}
  .nav-toggle{display:flex;}
  .hero{padding:132px 0 84px;min-height:auto;}
  .hero-side{flex:1 1 100%;}
  .compare{padding:28px;}
  .compare-head{display:none;}
  .compare-row{grid-template-columns:1fr;gap:10px;padding:20px 0;}
  .vs-badge{position:static;transform:none;margin:14px auto 0;}
}
@media (max-width:767px){
  .matrix-small{grid-column:span 12;}
  .section-head{gap:14px;flex-direction:column;}
  .section-num{font-size:34px;}
  .cta-band{padding:36px 26px;}
  .accordion-title{padding:18px 46px 18px 48px!important;font-size:16px!important;}
  .accordion-content{padding:0 24px 20px 48px!important;}
}
@media (max-width:639px){
  .container{padding-left:20px;padding-right:20px;}
  .grid-container{padding-left:20px;padding-right:20px;}
  .section{padding:52px 0;}
  .hero{padding:112px 0 64px;}
  .hero-title{font-size:29px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .metrics{grid-template-columns:1fr;}
  .metric{border-left:0!important;border-top:1px solid var(--border);}
  .metric:first-child{border-top:0;}
  .flow{grid-template-columns:1fr;}
  .feed-thumb{width:104px;height:74px;}
  .contact-card{padding:24px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn{width:100%;}
  .brand-sub{display:none;}
}

/* roulang page: article */
:root{
  --primary:#E23D28;
  --primary-deep:#B02A1B;
  --secondary:#0F3D3A;
  --secondary-2:#276B63;
  --accent:#F2A93B;
  --bg:#F7F4EF;
  --surface:#FFFFFF;
  --surface-alt:#EFF3F1;
  --text:#1F2422;
  --text-2:#5A6663;
  --inverse:#F4F1EA;
  --border:#E3DED6;
  --line-inverse:rgba(255,255,255,.16);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 2px 8px rgba(15,61,58,.06);
  --shadow-2:0 12px 32px rgba(15,61,58,.08);
  --shadow-hover:0 18px 40px rgba(15,61,58,.14);
  --dur:.24s;
  --font-cn:"PingFang SC","Noto Sans SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:var(--secondary-2);text-decoration:none;transition:color var(--dur) ease}
a:hover{color:var(--primary)}
h1,h2,h3,h4{margin:0;font-weight:800;color:var(--text);letter-spacing:.01em}
p{margin:0 0 1.15em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
input,select,textarea{font-family:inherit;font-size:15px}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}
.section{padding:88px 0}
.section-alt{background:var(--surface-alt)}
.section-dark{background:var(--secondary);color:var(--inverse)}
.section-head{margin-bottom:36px}
.section-head .eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.16em;color:var(--primary);
  font-weight:700;margin-bottom:10px;text-transform:uppercase;font-variant-numeric:tabular-nums;
}
.section-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.35}
.section-head p{margin:12px 0 0;color:var(--text-2);font-size:15px;max-width:760px}
.section-dark .section-head h2,.section-dark .section-head p{color:var(--inverse)}
.section-dark .section-head p{color:rgba(244,241,234,.78)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;line-height:1.2;cursor:pointer;
  border:1.5px solid transparent;transition:all var(--dur) ease;white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(226,61,40,.24)}
.btn-primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--secondary);color:var(--secondary)}
.btn-ghost:hover{background:rgba(15,61,58,.08);color:var(--secondary)}
.btn-glass{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.42);color:#fff}
.btn-glass:hover{background:rgba(255,255,255,.2);color:#fff}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.28);
  box-shadow:0 8px 30px rgba(15,61,58,.14);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.nav-inner{display:flex;align-items:center;gap:28px;height:76px;transition:height .3s ease}
.site-header.is-scrolled{background:#fff;border-bottom-color:var(--border);box-shadow:0 2px 18px rgba(15,61,58,.10)}
.site-header.is-scrolled .nav-inner{height:64px}
.brand{display:flex;align-items:center;gap:12px;margin-right:auto;color:#fff}
.brand:hover{color:#fff}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 40px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(160deg,var(--primary),var(--primary-deep));
  box-shadow:0 6px 16px rgba(226,61,40,.32);
  transition:background .3s ease;
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:16px;font-weight:800;color:#fff;letter-spacing:.01em;transition:color .3s ease}
.brand-sub{font-size:10px;letter-spacing:.2em;color:rgba(255,255,255,.68);transition:color .3s ease}
.site-header.is-scrolled .brand-name{color:var(--text)}
.site-header.is-scrolled .brand-sub{color:var(--text-2)}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;font-size:15px;font-weight:600;
  color:rgba(255,255,255,.88);padding:6px 0;transition:color var(--dur) ease;
}
.nav-link:hover{color:#fff}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:var(--primary);border-radius:2px;
}
.site-header.is-scrolled .nav-link{color:var(--text-2)}
.site-header.is-scrolled .nav-link:hover{color:var(--primary)}
.site-header.is-scrolled .nav-link.is-active{color:var(--text)}
.nav-actions{display:flex;align-items:center;gap:14px}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.30);
  border-radius:999px;padding:7px 14px;transition:all .3s ease;
}
.nav-search svg{width:16px;height:16px;fill:none;stroke:rgba(255,255,255,.8);stroke-width:2;stroke-linecap:round}
.nav-search input{
  width:132px;background:transparent;border:0;outline:none;
  color:#fff;font-size:13px;
}
.nav-search input::placeholder{color:rgba(255,255,255,.7)}
.site-header.is-scrolled .nav-search{background:#F1F4F3;border-color:var(--border)}
.site-header.is-scrolled .nav-search svg{stroke:var(--text-2)}
.site-header.is-scrolled .nav-search input{color:var(--text)}
.site-header.is-scrolled .nav-search input::placeholder{color:var(--text-2)}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;border-radius:10px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);
  cursor:pointer;transition:all var(--dur) ease;
}
.nav-toggle span{display:block;height:2px;width:18px;margin:0 auto;background:#fff;border-radius:2px;transition:transform .28s ease,opacity .28s ease}
.site-header.is-scrolled .nav-toggle{background:#F1F4F3;border-color:var(--border)}
.site-header.is-scrolled .nav-toggle span{background:var(--text)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer-cta{display:none}

/* ---------- 文章头 ---------- */
.article-hero{
  position:relative;overflow:hidden;
  padding:150px 0 60px;
  background:var(--secondary);color:var(--inverse);
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(15,61,58,.9) 0%,rgba(15,61,58,.68) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.article-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(244,241,234,.76)}
.breadcrumb a{color:rgba(244,241,234,.92)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{opacity:.45}
.article-hero h1{
  margin:20px 0 22px;max-width:920px;
  font-size:clamp(28px,3.8vw,44px);line-height:1.32;color:var(--inverse);
}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;
  font-size:12px;letter-spacing:.06em;font-weight:600;
}
.badge-primary{background:rgba(226,61,40,.18);border:1px solid rgba(226,61,40,.45);color:#FFD9D2}
.badge-accent{background:rgba(242,169,59,.16);border:1px solid rgba(242,169,59,.45);color:#FBD9A1}
.badge-ghost{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.26);color:rgba(244,241,234,.92)}
.hero-note{
  margin-top:26px;padding-top:22px;border-top:1px solid var(--line-inverse);
  display:flex;flex-wrap:wrap;gap:14px 34px;font-size:13px;color:rgba(244,241,234,.78);
}
.hero-note span{display:inline-flex;align-items:center;gap:8px}
.hero-note i{color:var(--accent)}

/* ---------- 正文布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;
  gap:40px;padding:64px 0 88px;
}
.article-panel{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);
  padding:44px 48px;
}
.entry-content{max-width:780px;font-size:16.5px;line-height:1.9;color:var(--text)}
.entry-content p{margin:0 0 1.15em}
.entry-content h2{
  position:relative;padding-left:16px;
  font-size:clamp(22px,2.4vw,28px);line-height:1.4;
  margin:2em 0 .8em;
}
.entry-content h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;
  background:var(--primary);border-radius:2px;
}
.entry-content h3{font-size:20px;line-height:1.5;margin:1.4em 0 .6em}
.entry-content h4{font-size:17px;margin:1.2em 0 .5em}
.entry-content ul,.entry-content ol{margin:0 0 1.2em;padding-left:1.2em}
.entry-content ul{list-style:disc}
.entry-content ol{list-style:decimal}
.entry-content li{margin-bottom:8px}
.entry-content a{color:var(--primary-deep);text-decoration:underline;text-underline-offset:3px}
.entry-content a:hover{color:var(--primary)}
.entry-content blockquote{
  margin:1.6em 0;padding:20px 22px;
  border-left:4px solid var(--primary);border-radius:0 var(--radius-img) var(--radius-img) 0;
  background:#FBF7F1;color:var(--text-2);
}
.entry-content img{border-radius:var(--radius-img);margin:1.4em auto}
.entry-content figcaption,.entry-content .caption{font-size:13px;color:var(--text-2);text-align:center;margin-top:-.6em}
.entry-content table{width:100%;border-collapse:collapse;font-size:14.5px;display:block;overflow-x:auto;white-space:nowrap}
.entry-content th,.entry-content td{border:1px solid var(--border);padding:10px 14px;text-align:left}
.entry-content th{background:var(--surface-alt);font-weight:700}
.article-foot{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;
  margin-top:40px;padding-top:28px;border-top:1px solid var(--border);
}
.empty-state{text-align:center;padding:48px 20px}
.empty-icon{
  width:64px;height:64px;margin:0 auto 20px;border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  background:var(--surface-alt);color:var(--secondary-2);font-size:26px;
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--text-2);max-width:520px;margin:0 auto 24px}

/* ---------- 侧栏 ---------- */
.side-sticky{position:sticky;top:96px;display:grid;gap:20px;align-content:start}
.side-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:22px 22px 20px;
}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--primary);font-size:14px}
.side-list li{
  display:flex;gap:10px;padding:10px 0;border-bottom:1px dashed var(--border);
  font-size:14px;color:var(--text-2);line-height:1.7;
}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list li b{color:var(--accent);font-variant-numeric:tabular-nums;font-weight:800}
.side-links{display:grid;gap:10px}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:11px 14px;border:1px solid var(--border);border-radius:var(--radius-btn);
  font-size:14px;font-weight:600;color:var(--text);background:#FCFBFA;
  transition:all var(--dur) ease;
}
.side-links a:hover{border-color:rgba(226,61,40,.4);color:var(--primary-deep);transform:translateX(3px);box-shadow:var(--shadow-1)}
.side-links a i{color:var(--primary);font-size:12px}
.toc-mobile{display:none}

/* ---------- 相关推荐 ---------- */
.recommend-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rec-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform var(--dur) ease,box-shadow var(--dur) ease,border-color var(--dur) ease;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(226,61,40,.3)}
.rec-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-alt)}
.rec-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0}
.rec-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-body .tag{
  align-self:flex-start;font-size:12px;letter-spacing:.06em;font-weight:700;
  color:var(--secondary-2);background:rgba(39,107,99,.1);
  padding:4px 10px;border-radius:999px;
}
.rec-body h3{font-size:17px;line-height:1.5}
.rec-body p{font-size:14px;color:var(--text-2);margin:0;line-height:1.8}
.rec-meta{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--border);
  font-size:13px;color:var(--text-2);display:flex;justify-content:space-between;gap:10px;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto}
.accordion{border:0;background:transparent;display:grid;gap:14px}
.accordion .accordion-item{
  border:1px solid var(--border)!important;border-radius:var(--radius-card);
  background:var(--surface);box-shadow:var(--shadow-1);overflow:hidden;
  transition:box-shadow var(--dur) ease,border-color var(--dur) ease;
}
.accordion .accordion-item.is-active{border-color:rgba(226,61,40,.35)!important;box-shadow:var(--shadow-2)}
.accordion .accordion-title{
  border:0!important;background:transparent!important;color:var(--text)!important;
  font-size:17px;font-weight:700;line-height:1.6;
  padding:20px 56px 20px 22px;display:flex;gap:12px;align-items:baseline;position:relative;
}
.accordion .accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  color:var(--primary);font-size:22px;font-weight:700;line-height:1;
}
.accordion .accordion-item.is-active .accordion-title::before{content:"×"}
.accordion .accordion-title .faq-num{
  color:var(--accent);font-size:13px;font-weight:800;
  font-variant-numeric:tabular-nums;letter-spacing:.06em;
}
.accordion .accordion-content{
  border:0!important;background:transparent!important;
  padding:0 22px 22px 22px!important;color:var(--text-2);font-size:15px;line-height:1.9;
}
.accordion .accordion-content p{margin:0}

/* ---------- 分类互链 CTA ---------- */
.cat-band{background:var(--secondary);color:var(--inverse);padding:88px 0}
.cat-band .section-head h2{color:var(--inverse)}
.cat-band .section-head p{color:rgba(244,241,234,.76)}
.cat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.cat-card{
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-inverse);border-radius:var(--radius-card);
  padding:26px 24px;display:flex;flex-direction:column;gap:14px;
  transition:background var(--dur) ease,transform var(--dur) ease,border-color var(--dur) ease;
}
.cat-card:hover{background:rgba(255,255,255,.09);transform:translateY(-4px);border-color:rgba(242,169,59,.5)}
.cat-card .cat-idx{font-size:13px;font-weight:800;color:var(--accent);letter-spacing:.12em;font-variant-numeric:tabular-nums}
.cat-card h3{font-size:19px;color:var(--inverse)}
.cat-card p{font-size:14px;color:rgba(244,241,234,.76);margin:0;line-height:1.85}
.cat-card .cat-link{
  margin-top:auto;font-size:14px;font-weight:700;color:var(--accent);
  display:inline-flex;align-items:center;gap:8px;
}
.cat-card .cat-link:hover{color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--secondary);color:rgba(244,241,234,.82);padding:64px 0 28px}
.footer-top{
  padding-bottom:28px;margin-bottom:36px;border-bottom:1px solid var(--line-inverse);
  font-size:14.5px;line-height:1.95;max-width:940px;color:rgba(244,241,234,.78);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{background:linear-gradient(160deg,var(--primary),var(--primary-deep))}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:rgba(244,241,234,.6)}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.footer-col p{font-size:14px;line-height:1.9;margin:0;color:rgba(244,241,234,.74)}
.footer-links{display:grid;gap:11px}
.footer-links a{font-size:14px;color:rgba(244,241,234,.82)}
.footer-links a:hover{color:var(--accent)}
.footer-info{display:grid;gap:14px}
.footer-info li{display:grid;gap:4px;font-size:13.5px}
.footer-info strong{color:#fff;font-weight:700}
.footer-info span{color:rgba(244,241,234,.7)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line-inverse);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(244,241,234,.62);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .container{padding:0 32px}
  .section{padding:64px 0}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;padding:48px 0 64px}
  .side-sticky{position:static;display:none}
  .toc-mobile{
    display:block;background:var(--surface);border:1px solid var(--border);
    border-radius:var(--radius-card);box-shadow:var(--shadow-1);
    margin-top:28px;padding:18px 22px;
  }
  .toc-mobile h3{font-size:15px;margin-bottom:10px}
  .toc-mobile .side-links{margin-top:6px}
  .recommend-grid,.cat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:min(80vw,320px);
    background:rgba(15,61,58,.97);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    flex-direction:column;align-items:flex-start;gap:0;
    padding:104px 28px 36px;transform:translateX(106%);
    transition:transform .32s ease;z-index:90;
    box-shadow:-24px 0 44px rgba(15,61,58,.3);
  }
  .nav-links.is-open{transform:translateX(0)}
  .site-header .nav-links .nav-link{
    width:100%;padding:14px 0;font-size:16px;
    color:rgba(255,255,255,.9);border-bottom:1px solid var(--line-inverse);
  }
  .site-header .nav-links .nav-link.is-active{color:var(--accent)}
  .site-header .nav-links .nav-link.is-active::after{display:none}
  .nav-links .drawer-cta{
    display:inline-flex;margin-top:24px;width:100%;
    background:var(--primary);color:#fff;border-radius:var(--radius-btn);
    padding:13px 20px;font-weight:700;justify-content:center;
  }
  .nav-search{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:flex}
}
@media (max-width:767px){
  .article-hero{padding:126px 0 46px}
  .article-panel{padding:26px 20px}
  .entry-content{font-size:16px}
  .recommend-grid,.cat-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .section{padding:48px 0}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .article-panel{padding:22px 16px}
  .brand-name{font-size:14px}
  .brand-sub{font-size:9px}
  .brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px}
  .hero-note{gap:10px 22px}
  .article-foot .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --primary:#E23D28;
  --primary-deep:#B02A1B;
  --secondary:#0F3D3A;
  --secondary-2:#276B63;
  --accent:#F2A93B;
  --bg:#F7F4EF;
  --bg-alt:#EFF3F1;
  --surface:#FFFFFF;
  --text:#1F2422;
  --muted:#5A6663;
  --line:#E3DED6;
  --line-dark:rgba(255,255,255,.16);
  --reverse:#F4F1EA;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-img:12px;
  --shadow-sm:0 2px 8px rgba(15,61,58,.06);
  --shadow-md:0 12px 32px rgba(15,61,58,.08);
  --shadow-dark:0 18px 40px rgba(0,0,0,.28);
  --ease:.24s ease;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Noto Sans SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:var(--primary);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease)}
a:hover{color:var(--primary-deep)}
p{margin:0 0 1.15em}
h1,h2,h3,h4{margin:0;font-weight:800;color:var(--text);line-height:1.35;letter-spacing:.01em}
ul,ol{margin:0;padding:0}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 40px}
.section{padding:96px 0}
.section--alt{background:var(--bg-alt)}
.section--dark{background:var(--secondary);color:var(--reverse)}
.section--dark h2,.section--dark h3{color:var(--reverse)}
.section-head{display:flex;gap:24px;align-items:flex-start;margin-bottom:40px}
.section-index{
  font-size:40px;
  font-weight:800;
  line-height:1;
  color:rgba(226,61,40,.22);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
  flex:0 0 auto;
  padding-top:4px;
}
.section--dark .section-index{color:rgba(242,169,59,.42)}
.section-head h2{font-size:clamp(24px,2.6vw,32px)}
.section-desc{margin:10px 0 0;color:var(--muted);font-size:15.5px;max-width:760px}
.section--dark .section-desc{color:rgba(244,241,234,.76)}

/* ============ 导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:80;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.28);
  box-shadow:0 10px 30px rgba(15,61,58,.16);
  transition:background-color .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  box-shadow:0 8px 24px rgba(15,61,58,.08);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  height:76px;
  transition:height .3s ease;
}
.site-header.is-scrolled .nav-inner{height:64px}
.brand{display:flex;align-items:center;gap:12px;color:var(--reverse);flex:0 0 auto}
.brand:hover{color:var(--reverse)}
.brand-mark{
  width:38px;height:38px;
  border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  box-shadow:0 6px 16px rgba(226,61,40,.32);
  flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.01em}
.brand-sub{font-size:10.5px;letter-spacing:.16em;opacity:.68;font-weight:600}
.site-header .brand-name{color:#FFFFFF;text-shadow:0 1px 6px rgba(15,61,58,.35)}
.site-header.is-scrolled .brand-name{color:var(--secondary);text-shadow:none}
.site-header.is-scrolled .brand-sub{color:var(--muted);opacity:.85}
.site-header .brand-sub{color:rgba(255,255,255,.82)}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-link{
  position:relative;
  font-size:15.5px;
  font-weight:600;
  color:rgba(255,255,255,.92);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--ease);
}
.nav-link:hover{color:#FFFFFF}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#FFFFFF}
.nav-link.is-active::after{transform:scaleX(1)}
.site-header.is-scrolled .nav-link{color:var(--text)}
.site-header.is-scrolled .nav-link:hover,.site-header.is-scrolled .nav-link.is-active{color:var(--primary)}
.nav-actions{display:flex;align-items:center;gap:14px}
.nav-search{
  display:flex;align-items:center;gap:8px;
  height:40px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(255,255,255,.18);
  border:1px solid rgba(255,255,255,.34);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  transition:background-color var(--ease),border-color var(--ease);
}
.nav-search svg{width:16px;height:16px;fill:none;stroke:rgba(255,255,255,.9);stroke-width:2;stroke-linecap:round;flex:0 0 auto}
.nav-search input{
  width:132px;border:0;background:transparent;outline:none;
  color:#FFFFFF;font-size:14px;
}
.nav-search input::placeholder{color:rgba(255,255,255,.74)}
.site-header.is-scrolled .nav-search{background:var(--bg-alt);border-color:var(--line)}
.site-header.is-scrolled .nav-search svg{stroke:var(--secondary-2)}
.site-header.is-scrolled .nav-search input{color:var(--text)}
.site-header.is-scrolled .nav-search input::placeholder{color:var(--muted)}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid rgba(255,255,255,.4);
  border-radius:11px;
  background:rgba(255,255,255,.14);
  padding:0;
  cursor:pointer;
  position:relative;
}
.nav-toggle span{
  position:absolute;left:11px;right:11px;height:2px;background:#FFFFFF;border-radius:2px;
  transition:transform var(--ease),opacity var(--ease),top var(--ease);
}
.nav-toggle span:nth-child(1){top:14px}
.nav-toggle span:nth-child(2){top:20px}
.nav-toggle span:nth-child(3){top:26px}
.nav-toggle.is-open span:nth-child(1){top:20px;transform:rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){top:20px;transform:rotate(-45deg)}
.site-header.is-scrolled .nav-toggle{border-color:var(--line);background:var(--bg-alt)}
.site-header.is-scrolled .nav-toggle span{background:var(--secondary)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15.5px;
  font-weight:700;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform var(--ease),background-color var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#FFFFFF;box-shadow:0 8px 20px rgba(226,61,40,.28)}
.btn-primary:hover{background:var(--primary-deep);color:#FFFFFF;transform:translateY(-1px);box-shadow:0 12px 26px rgba(226,61,40,.34)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;border-color:var(--secondary);color:var(--secondary)}
.btn-outline:hover{background:rgba(15,61,58,.08);color:var(--secondary)}
.btn-ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.55);color:#FFFFFF}
.btn-ghost:hover{background:rgba(255,255,255,.22);color:#FFFFFF}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px}
.btn:disabled,.btn.is-disabled{opacity:.55;filter:saturate(.5);cursor:not-allowed;transform:none}
.nav-cta{height:40px;padding:0 20px;font-size:15px}

/* ============ Hero ============ */
.category-hero{
  position:relative;
  display:flex;
  align-items:flex-end;
  padding:168px 0 56px;
  min-height:380px;
  color:var(--reverse);
  background:
    linear-gradient(120deg,rgba(15,61,58,.86) 0%,rgba(15,61,58,.62) 60%,rgba(15,61,58,.42) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.category-hero::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;height:4px;
  background:linear-gradient(90deg,var(--primary) 0%,var(--primary) 38%,var(--accent) 38%,var(--accent) 52%,transparent 52%);
  opacity:.9;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;
  letter-spacing:.16em;
  font-weight:700;
  color:var(--reverse);
  padding:6px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.3);
  margin-bottom:18px;
}
.hero-eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.category-hero h1{
  color:#FFFFFF;
  font-size:clamp(30px,4vw,46px);
  line-height:1.3;
  font-weight:800;
  max-width:900px;
}
.hero-lead{
  margin:18px 0 0;
  max-width:760px;
  font-size:16.5px;
  line-height:1.9;
  color:rgba(244,241,234,.88);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin-top:30px;
  font-size:13px;
  color:rgba(244,241,234,.72);
}
.breadcrumb a{color:rgba(244,241,234,.9)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:rgba(244,241,234,.72)}

/* ============ 导语 / 信任条 ============ */
.intro-band{
  background:var(--surface);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-md);
  border:1px solid var(--line);
  padding:36px 40px;
  margin-top:-56px;
  position:relative;
  z-index:2;
}
.intro-band p{font-size:17px;color:var(--text);margin-bottom:0}
.trust-row{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:0;
  margin-top:26px;
  border-top:1px solid var(--line);
  padding-top:22px;
}
.trust-item{padding:0 24px;border-left:1px solid var(--line)}
.trust-item:first-child{border-left:0;padding-left:0}
.trust-item strong{display:block;font-size:15px;color:var(--text);margin-bottom:4px}
.trust-item span{font-size:13.5px;color:var(--muted);line-height:1.75}

/* ============ 三要素卡 ============ */
.fact-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:30px 28px;
  height:100%;
  box-shadow:var(--shadow-sm);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.fact-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(226,61,40,.3)}
.fact-icon{
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(226,61,40,.1);
  color:var(--primary);
  margin-bottom:18px;
}
.fact-icon i{font-size:19px}
.fact-card h3{font-size:19px;margin-bottom:10px}
.fact-card p{color:var(--muted);font-size:15px;margin-bottom:0}

/* ============ 条目网格 ============ */
.entry-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  height:100%;
  box-shadow:var(--shadow-sm);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(226,61,40,.3)}
.entry-thumb{position:relative;background:var(--bg-alt)}
.entry-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.entry-badge{
  position:absolute;top:12px;left:12px;
  font-size:12px;
  letter-spacing:.06em;
  font-weight:700;
  padding:4px 10px;
  border-radius:999px;
  background:rgba(15,61,58,.86);
  color:var(--reverse);
}
.entry-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1}
.entry-body h3{font-size:18.5px;margin-bottom:10px}
.entry-body > p{font-size:14.5px;color:var(--muted);margin-bottom:16px}
.point-list{list-style:none;display:flex;flex-direction:column;gap:9px;margin-top:auto}
.point-list li{
  position:relative;
  padding-left:20px;
  font-size:14px;
  color:var(--muted);
  line-height:1.7;
}
.point-list li::before{
  content:"";
  position:absolute;left:0;top:.72em;
  width:9px;height:2px;
  background:var(--primary);
  border-radius:2px;
}
.section--dark .point-list li{color:rgba(244,241,234,.78)}
.section--dark .point-list li::before{background:var(--accent)}

/* ============ 流程 ============ */
.flow-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:flow}
.flow-step{
  position:relative;
  padding:28px 24px;
  border-radius:var(--radius-card);
  background:rgba(255,255,255,.06);
  border:1px solid var(--line-dark);
  transition:background-color var(--ease),transform var(--ease),border-color var(--ease);
}
.flow-step:hover{background:rgba(255,255,255,.11);transform:translateY(-4px);border-color:rgba(242,169,59,.45)}
.flow-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:rgba(242,169,59,.18);
  color:var(--accent);
  font-weight:800;
  font-size:15px;
  font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.flow-step h3{font-size:17.5px;margin-bottom:8px}
.flow-step p{font-size:14.5px;color:rgba(244,241,234,.76);margin:0}

/* ============ 现象对照 ============ */
.cross-list{display:flex;flex-direction:column;gap:16px}
.cross-row{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  align-items:stretch;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.cross-row:hover{border-color:rgba(226,61,40,.3);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.cross-cell{padding:24px 28px}
.cross-cell + .cross-cell{border-left:1px solid var(--line);background:var(--bg-alt)}
.cross-label{
  display:block;font-size:12px;letter-spacing:.12em;font-weight:700;
  color:var(--muted);margin-bottom:8px;
}
.cross-cell h3{font-size:17px;margin-bottom:6px}
.cross-cell p{font-size:14.5px;color:var(--muted);margin:0}
.cross-cell.is-fix .cross-label{color:var(--primary)}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion{
  background:transparent;
  border:0;
  margin:0;
  list-style:none;
}
.accordion-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  margin-bottom:16px;
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  position:relative;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.accordion-item:hover{border-color:rgba(226,61,40,.3);box-shadow:var(--shadow-md)}
.accordion-item.is-active{border-color:rgba(226,61,40,.4)}
.accordion-item.is-active::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary);
}
.accordion-title{
  display:flex;align-items:center;gap:16px;
  padding:22px 26px;
  font-size:17px;
  font-weight:700;
  color:var(--text);
  border:0;
  background:transparent;
  line-height:1.6;
}
.accordion-title::before{
  counter-increment:faq;
  content:"0" counter(faq);
  font-size:13px;
  font-weight:800;
  color:var(--accent);
  letter-spacing:.06em;
  flex:0 0 auto;
  font-variant-numeric:tabular-nums;
}
.accordion-title::after{
  content:"+";
  margin-left:auto;
  font-size:22px;
  font-weight:600;
  color:var(--primary);
  line-height:1;
  transition:transform var(--ease);
}
.accordion-item.is-active .accordion-title::after{content:"×"}
.accordion-title:hover{color:var(--primary-deep)}
.accordion-content{
  padding:0 26px 24px 66px;
  font-size:15.5px;
  color:var(--muted);
  line-height:1.9;
  border:0;
}
.accordion-content p:last-child{margin-bottom:0}
.accordion{counter-reset:faq}

/* ============ CTA ============ */
.cta-band{
  background:linear-gradient(135deg,var(--secondary) 0%,#16504A 100%);
  color:var(--reverse);
  border-radius:20px;
  padding:52px 48px;
  display:grid;
  grid-template-columns:1.25fr 1fr;
  gap:40px;
  align-items:center;
  box-shadow:var(--shadow-dark);
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;right:-60px;top:-60px;width:240px;height:240px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(242,169,59,.28) 0%,transparent 70%);
}
.cta-band h2{color:#FFFFFF;font-size:clamp(22px,2.4vw,30px);margin-bottom:14px}
.cta-band p{color:rgba(244,241,234,.82);font-size:15.5px;margin-bottom:0}
.cta-actions{display:flex;flex-direction:column;gap:14px;position:relative;z-index:1}
.cta-actions .btn{width:100%}
.cta-links{display:flex;gap:20px;flex-wrap:wrap;margin-top:6px;font-size:14.5px}
.cta-links a{color:var(--accent)}
.cta-links a:hover{color:#FFFFFF}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--secondary);
  color:rgba(244,241,234,.78);
  padding:72px 0 30px;
  margin-top:96px;
  font-size:14.5px;
}
.footer-top{
  font-size:15px;
  line-height:1.95;
  color:rgba(244,241,234,.8);
  padding-bottom:32px;
  border-bottom:1px solid var(--line-dark);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:40px;
  padding:44px 0 36px;
}
.footer-col h4{
  color:#FFFFFF;
  font-size:15.5px;
  margin-bottom:18px;
  letter-spacing:.04em;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-name{color:#FFFFFF;font-size:17px;font-weight:800}
.footer-brand .brand-sub{color:rgba(244,241,234,.6);font-size:10.5px;letter-spacing:.16em;font-weight:600}
.footer-col p{font-size:14px;color:rgba(244,241,234,.7);margin:0;line-height:1.9}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{color:rgba(244,241,234,.78);font-size:14px}
.footer-links a:hover{color:var(--accent)}
.footer-info{list-style:none;display:flex;flex-direction:column;gap:14px}
.footer-info li{display:flex;flex-direction:column;gap:3px;font-size:14px}
.footer-info strong{color:#FFFFFF;font-weight:700;font-size:14px}
.footer-info span{color:rgba(244,241,234,.68);font-size:13.5px;line-height:1.75}
.footer-bottom{
  border-top:1px solid var(--line-dark);
  padding-top:22px;
  display:flex;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(244,241,234,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .container{padding:0 32px}
  .section{padding:70px 0}
  .nav-links{
    position:fixed;
    top:0;right:0;bottom:0;
    width:288px;
    padding:100px 28px 40px;
    flex-direction:column;
    align-items:flex-start;
    gap:6px;
    background:rgba(15,61,58,.97);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    transform:translateX(105%);
    transition:transform .3s ease;
    box-shadow:-18px 0 40px rgba(0,0,0,.28);
    z-index:90;
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-link{
    width:100%;
    padding:14px 0;
    color:rgba(244,241,234,.9);
    border-bottom:1px solid var(--line-dark);
    font-size:16px;
  }
  .site-header.is-scrolled .nav-link{color:rgba(244,241,234,.9)}
  .nav-link.is-active,.site-header.is-scrolled .nav-link.is-active{color:#FFFFFF}
  .nav-link::after{display:none}
  .nav-toggle{display:block;z-index:95}
  .nav-search{display:none}
  .trust-row{grid-template-columns:1fr}
  .trust-item{border-left:0;padding:14px 0;border-top:1px solid var(--line)}
  .trust-item:first-child{border-top:0;padding-top:0}
  .flow-wrap{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr;padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cross-row{grid-template-columns:1fr}
  .cross-cell + .cross-cell{border-left:0;border-top:1px solid var(--line)}
}
@media (max-width:639px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:52px 0}
  .category-hero{padding:132px 0 44px;min-height:420px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .intro-band{padding:26px 22px;margin-top:-40px}
  .section-head{gap:14px;margin-bottom:28px}
  .section-index{font-size:30px}
  .flow-wrap{grid-template-columns:1fr}
  .accordion-title{padding:18px 20px;font-size:16px;gap:12px}
  .accordion-content{padding:0 20px 20px 56px}
  .cta-band{padding:32px 22px;border-radius:16px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .section--dark{padding:56px 0}
}

/* roulang page: category3 */
:root{
  --primary:#E23D28;
  --primary-deep:#B02A1B;
  --secondary:#0F3D3A;
  --secondary-2:#276B63;
  --accent:#F2A93B;
  --bg:#F7F4EF;
  --bg-alt:#EFF3F1;
  --white:#FFFFFF;
  --text:#1F2422;
  --text-2:#5A6663;
  --text-inv:#F4F1EA;
  --border:#E3DED6;
  --border-inv:rgba(255,255,255,.16);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-img:12px;
  --shadow-1:0 2px 8px rgba(15,61,58,.06);
  --shadow-2:0 12px 32px rgba(15,61,58,.08);
  --ease:.24s ease;
  --maxw:1200px;
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:.005em;
  overflow-x:hidden;
}

h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease),opacity var(--ease);}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:16px;color:var(--text);}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

/* ---------- 容器 ---------- */
.container,
.grid-container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding-left:40px;
  padding-right:40px;
}
.grid-container{padding-left:40px;padding-right:40px;}

.grid-x.gutter-24{margin-left:-12px;margin-right:-12px;}
.grid-x.gutter-24 > .cell{padding-left:12px;padding-right:12px;}

/* ---------- 通用排版 ---------- */
.eyebrow{
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--secondary-2);
  font-weight:700;
}
.section-head{margin-bottom:40px;}
.section-num{
  display:block;
  font-size:44px;
  line-height:1;
  font-weight:800;
  color:rgba(226,61,40,.16);
  font-variant-numeric:tabular-nums;
  margin-bottom:12px;
  letter-spacing:.02em;
}
.section-title{
  font-size:30px;
  line-height:1.35;
  font-weight:800;
  letter-spacing:.01em;
  color:var(--secondary);
}
.section-title::after{
  content:"";
  display:block;
  width:48px;
  height:4px;
  border-radius:2px;
  background:var(--primary);
  margin-top:14px;
}
.section-desc{
  margin-top:14px;
  color:var(--text-2);
  font-size:16px;
  max-width:760px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  transition:background-color var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  border:1.5px solid transparent;
  white-space:nowrap;
}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 8px 20px rgba(226,61,40,.24);
}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);color:#fff;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  color:var(--secondary);
  border-color:var(--secondary);
}
.btn-ghost:hover{background:rgba(15,61,58,.08);color:var(--secondary);}
.btn-light{
  background:rgba(255,255,255,.14);
  color:#fff;
  border-color:rgba(255,255,255,.7);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
}
.btn-light:hover{background:rgba(255,255,255,.24);color:#fff;}
.btn-block{width:100%;}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.5;filter:saturate(.4);transform:none;cursor:not-allowed;}

.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:700;
  color:var(--primary);
  border-bottom:1.5px solid rgba(226,61,40,.35);
  padding-bottom:2px;
}
.link-more:hover{color:var(--primary-deep);border-color:var(--primary-deep);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.06em;
  font-weight:700;
  background:rgba(39,107,99,.12);
  color:var(--secondary-2);
}
.badge-accent{background:rgba(242,169,59,.2);color:#8a5b06;}
.badge-red{background:rgba(226,61,40,.12);color:var(--primary-deep);}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:120;
  height:76px;
  background:rgba(15,61,58,.30);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.28);
  box-shadow:0 6px 24px rgba(15,61,58,.16);
  transition:height var(--ease),background-color var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{
  height:64px;
  background:#FFFFFF;
  border-bottom:1px solid var(--border);
  box-shadow:0 2px 14px rgba(15,61,58,.08);
}
.nav-inner{
  height:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;
  border-radius:11px;
  background:var(--primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 6px 16px rgba(226,61,40,.3);
  flex-shrink:0;
}
.brand-mark svg{width:21px;height:21px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:800;color:#fff;letter-spacing:.01em;}
.brand-sub{font-size:10px;letter-spacing:.22em;color:rgba(255,255,255,.62);font-weight:700;}
.nav-links{display:flex;align-items:center;gap:30px;}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:rgba(255,255,255,.92);
  padding:6px 0;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  background:var(--primary);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--ease);
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:16px;}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.3);
  transition:background-color var(--ease),border-color var(--ease);
}
.nav-search svg{width:15px;height:15px;stroke:rgba(255,255,255,.85);fill:none;stroke-width:2;stroke-linecap:round;flex-shrink:0;}
.nav-search input{
  border:none;background:transparent;outline:none;
  width:126px;font-size:13px;color:#fff;
}
.nav-search input::placeholder{color:rgba(255,255,255,.66);}
.nav-cta{padding:10px 20px;font-size:14px;}

.site-header.is-scrolled .brand-name{color:var(--secondary);}
.site-header.is-scrolled .brand-sub{color:var(--text-2);}
.site-header.is-scrolled .nav-link{color:var(--text-2);}
.site-header.is-scrolled .nav-link:hover{color:var(--secondary);}
.site-header.is-scrolled .nav-link.is-active{color:var(--secondary);}
.site-header.is-scrolled .nav-search{background:var(--bg);border-color:var(--border);}
.site-header.is-scrolled .nav-search svg{stroke:var(--secondary-2);}
.site-header.is-scrolled .nav-search input{color:var(--text);}
.site-header.is-scrolled .nav-search input::placeholder{color:var(--text-2);}

.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.34);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform var(--ease),opacity var(--ease);}
.site-header.is-scrolled .nav-toggle{border-color:var(--border);}
.site-header.is-scrolled .nav-toggle span{background:var(--secondary);}

.mobile-drawer{
  position:fixed;
  top:0;right:0;
  width:min(320px,86vw);
  height:100%;
  background:rgba(15,61,58,.94);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-left:1px solid rgba(255,255,255,.2);
  z-index:200;
  padding:96px 28px 40px;
  transform:translateX(104%);
  transition:transform .3s ease;
  display:flex;
  flex-direction:column;
  gap:6px;
}
.mobile-drawer.is-open{transform:translateX(0);}
.mobile-drawer a{
  color:rgba(255,255,255,.9);
  font-size:16px;
  font-weight:600;
  padding:14px 0;
  border-bottom:1px solid var(--border-inv);
}
.mobile-drawer a:hover,.mobile-drawer a.is-active{color:var(--accent);}
.mobile-drawer .btn{margin-top:24px;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,61,58,.4);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:190;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  min-height:480px;
  display:flex;
  align-items:flex-end;
  padding:150px 0 64px;
  background-color:var(--secondary);
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,61,58,.72) 0%,rgba(15,61,58,.86) 100%);
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(180deg,rgba(255,255,255,.05) 0 1px,transparent 1px 9px);
  opacity:.5;
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;width:100%;}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.72);
  margin-bottom:22px;
}
.breadcrumb a{color:rgba(255,255,255,.72);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:rgba(255,255,255,.42);}
.breadcrumb .current{color:#fff;font-weight:600;}
.page-hero h1{
  font-size:clamp(30px,4vw,46px);
  line-height:1.3;
  font-weight:800;
  letter-spacing:.01em;
  color:#fff;
  max-width:860px;
}
.hero-sub{
  margin-top:20px;
  font-size:17px;
  line-height:1.85;
  color:rgba(244,241,234,.86);
  max-width:720px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:26px;
  margin-top:34px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.2);
}
.hero-meta li{
  font-size:13px;
  color:rgba(244,241,234,.78);
  display:flex;align-items:center;gap:8px;
}
.hero-meta li i{color:var(--accent);font-size:13px;}

/* ---------- 数据小结条 ---------- */
.stat-strip{
  position:relative;
  z-index:5;
  margin-top:-46px;
  margin-bottom:96px;
}
.stat-card{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);
  display:grid;
  grid-template-columns:repeat(3,1fr);
}
.stat-item{
  padding:32px 34px;
  position:relative;
}
.stat-item + .stat-item::before{
  content:"";
  position:absolute;
  left:0;top:26px;bottom:26px;
  width:1px;
  background:var(--border);
}
.stat-value{
  font-size:clamp(34px,4vw,46px);
  line-height:1.05;
  font-weight:800;
  color:var(--secondary);
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
}
.stat-value span{font-size:17px;font-weight:700;margin-left:4px;color:var(--secondary-2);}
.stat-label{
  margin-top:10px;
  font-size:14px;
  color:var(--text-2);
}
.stat-note{margin-top:6px;font-size:13px;color:var(--secondary-2);}

/* ---------- 板块 ---------- */
.section{padding:0 0 96px;}
.section.alt{background:var(--bg-alt);padding:88px 0;}
.section.plain{background:var(--white);padding:88px 0;}

/* ---------- 标签速查 ---------- */
.tag-scroll{
  display:flex;
  gap:12px;
  overflow-x:auto;
  padding-bottom:10px;
  scrollbar-width:thin;
}
.tag-scroll::-webkit-scrollbar{height:6px;}
.tag-scroll::-webkit-scrollbar-thumb{background:rgba(15,61,58,.18);border-radius:3px;}
.tag-chip{
  flex:0 0 auto;
  padding:9px 18px;
  border-radius:999px;
  border:1px solid var(--border);
  background:var(--white);
  font-size:14px;
  font-weight:600;
  color:var(--text-2);
  transition:all var(--ease);
}
.tag-chip:hover{
  border-color:rgba(226,61,40,.5);
  color:var(--primary);
  transform:translateY(-2px);
  box-shadow:var(--shadow-1);
}
.tag-chip.is-active{
  background:var(--secondary);
  border-color:var(--secondary);
  color:#fff;
}

/* ---------- 双栏问答清单 ---------- */
.qa-list{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:8px 36px;
}
.qa-row{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:40px;
  padding:34px 0;
  border-bottom:1px solid var(--border);
  scroll-margin-top:110px;
}
.qa-row:last-child{border-bottom:none;}
.qa-left{position:relative;padding-left:20px;}
.qa-left::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:3px;
  border-radius:2px;
  background:var(--border);
  transition:background-color var(--ease);
}
.qa-row:hover .qa-left::before{background:var(--primary);}
.qa-index{
  display:block;
  font-size:12px;
  font-weight:800;
  letter-spacing:.14em;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  margin-bottom:8px;
}
.qa-question{
  font-size:18px;
  line-height:1.6;
  font-weight:800;
  color:var(--secondary);
}
.qa-question i{color:var(--primary);font-size:13px;margin-right:6px;}
.qa-answer{
  font-size:16px;
  line-height:1.9;
  color:var(--text-2);
}
.qa-answer strong{color:var(--text);font-weight:700;}
.qa-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}

/* ---------- 相关分类 ---------- */
.cat-card{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  height:100%;
  display:flex;
  flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.cat-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:rgba(226,61,40,.3);
}
.cat-card .thumb{
  aspect-ratio:16/9;
  overflow:hidden;
  background:linear-gradient(135deg,var(--secondary) 0%,var(--secondary-2) 100%);
}
.cat-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.cat-card:hover .thumb img{transform:scale(1.04);}
.cat-body{padding:24px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.cat-body h3{font-size:19px;font-weight:800;color:var(--secondary);line-height:1.45;}
.cat-body p{font-size:14px;line-height:1.85;color:var(--text-2);flex:1;}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;
  background-color:var(--secondary);
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;
  background-position:center;
  padding:88px 0;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,61,58,.94) 0%,rgba(15,61,58,.78) 100%);
}
.cta-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:48px;
  align-items:center;
}
.cta-band h2{
  font-size:clamp(24px,3vw,32px);
  line-height:1.4;
  font-weight:800;
  color:#fff;
}
.cta-band p{
  margin-top:16px;
  font-size:16px;
  line-height:1.9;
  color:rgba(244,241,234,.82);
  max-width:620px;
}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:flex-start;}
.cta-actions .btn{width:100%;max-width:280px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--secondary);
  color:var(--text-inv);
  padding:72px 0 34px;
  border-top:1px solid var(--border-inv);
}
.footer-top{
  font-size:14px;
  line-height:1.95;
  color:rgba(244,241,234,.72);
  padding-bottom:34px;
  border-bottom:1px solid var(--border-inv);
  max-width:1000px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:44px;
  padding:44px 0 38px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-col h4{
  font-size:14px;
  font-weight:800;
  letter-spacing:.06em;
  color:#fff;
  margin-bottom:18px;
}
.footer-col p{font-size:14px;line-height:1.9;color:rgba(244,241,234,.7);}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{
  font-size:14px;
  color:rgba(244,241,234,.74);
}
.footer-links a:hover{color:var(--accent);}
.footer-info{display:flex;flex-direction:column;gap:14px;}
.footer-info li{font-size:13px;line-height:1.75;}
.footer-info strong{display:block;color:#fff;font-size:13px;font-weight:700;margin-bottom:3px;}
.footer-info span{color:rgba(244,241,234,.68);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  align-items:center;
  padding-top:26px;
  border-top:1px solid var(--border-inv);
  font-size:13px;
  color:rgba(244,241,234,.6);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .container,.grid-container{padding-left:32px;padding-right:32px;}
  .nav-links,.nav-search{display:none;}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .page-hero{min-height:430px;padding:132px 0 56px;}
  .stat-strip{margin-top:-38px;margin-bottom:76px;}
  .stat-item{padding:26px 24px;}
  .section{padding-bottom:76px;}
  .section.alt,.section.plain{padding:68px 0;}
  .qa-list{padding:6px 24px;}
  .qa-row{grid-template-columns:1fr;gap:16px;padding:28px 0;}
  .cta-inner{grid-template-columns:1fr;gap:32px;}
  .cta-actions .btn{max-width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .section-title{font-size:26px;}
}

@media screen and (max-width:639px){
  body{font-size:16px;}
  .container,.grid-container{padding-left:20px;padding-right:20px;}
  .grid-x.gutter-24{margin-left:-8px;margin-right:-8px;}
  .grid-x.gutter-24 > .cell{padding-left:8px;padding-right:8px;}
  .site-header{height:68px;}
  .brand-name{font-size:14px;}
  .brand-sub{display:none;}
  .page-hero{min-height:420px;padding:120px 0 48px;}
  .hero-sub{font-size:15px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-meta{gap:14px;flex-direction:column;}
  .stat-card{grid-template-columns:1fr;}
  .stat-item + .stat-item::before{
    left:24px;right:24px;top:0;bottom:auto;width:auto;height:1px;
  }
  .stat-item{padding:22px 24px;}
  .section{padding-bottom:56px;}
  .section.alt,.section.plain{padding:52px 0;}
  .section-num{font-size:34px;}
  .section-title{font-size:23px;}
  .qa-list{padding:4px 18px;}
  .qa-question{font-size:16.5px;}
  .qa-answer{font-size:15px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-band{padding:60px 0;}
}

/* roulang page: category2 */
:root{
  --primary:#E23D28;
  --primary-deep:#B02A1B;
  --secondary:#0F3D3A;
  --secondary-2:#276B63;
  --accent:#F2A93B;
  --bg:#F7F4EF;
  --bg-alt:#EFF3F1;
  --surface:#FFFFFF;
  --text:#1F2422;
  --text-2:#5A6663;
  --text-invert:#F4F1EA;
  --border:#E3DED6;
  --border-dark:rgba(255,255,255,.16);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-img:12px;
  --shadow-1:0 2px 8px rgba(15,61,58,.06);
  --shadow-2:0 12px 32px rgba(15,61,58,.08);
  --shadow-hover:0 4px 12px rgba(15,61,58,.10),0 20px 44px rgba(15,61,58,.14);
  --t:.24s ease;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--t)}
a:hover,a:focus{color:var(--primary-deep)}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0;font-weight:800;color:var(--text);letter-spacing:.01em}
ul,ol{margin:0}
button,input,select,textarea{font-family:inherit;font-size:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  border-radius:4px;
}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 40px;
}
.grid-container{
  max-width:var(--container);
  padding-left:40px;
  padding-right:40px;
}

/* ============ 导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:80;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.28);
  box-shadow:0 8px 30px rgba(15,61,58,.12);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:76px;
  transition:height .3s ease;
}
.site-header.is-scrolled{
  background:var(--surface);
  border-bottom-color:var(--border);
  box-shadow:0 6px 24px rgba(15,61,58,.08);
}
.site-header.is-scrolled .nav-inner{height:64px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;text-decoration:none}
.brand-mark{
  width:38px;height:38px;
  border-radius:11px;
  background:var(--primary);
  display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(226,61,40,.32);
  flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:15.5px;font-weight:800;color:#fff;letter-spacing:.01em;white-space:nowrap}
.brand-sub{font-size:10px;letter-spacing:.18em;color:rgba(255,255,255,.66)}
.site-header.is-scrolled .brand-name{color:var(--text)}
.site-header.is-scrolled .brand-sub{color:var(--text-2)}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:rgba(255,255,255,.88);
  padding:6px 0;
  text-decoration:none;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--t);
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{transform:scaleX(1)}
.site-header.is-scrolled .nav-link{color:var(--text-2)}
.site-header.is-scrolled .nav-link:hover,
.site-header.is-scrolled .nav-link.is-active{color:var(--text)}
.nav-actions{display:flex;align-items:center;gap:14px;margin-left:28px}
.nav-search{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;
  border-radius:999px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);
  transition:var(--t);
}
.nav-search svg{width:16px;height:16px;stroke:#fff;stroke-width:1.8;fill:none;flex:0 0 auto}
.nav-search input{
  background:transparent;border:0;outline:none;
  color:#fff;font-size:14px;width:132px;
}
.nav-search input::placeholder{color:rgba(255,255,255,.72)}
.site-header.is-scrolled .nav-search{background:var(--bg-alt);border-color:var(--border)}
.site-header.is-scrolled .nav-search svg{stroke:var(--text-2)}
.site-header.is-scrolled .nav-search input{color:var(--text)}
.site-header.is-scrolled .nav-search input::placeholder{color:var(--text-2)}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:42px;height:42px;
  border-radius:10px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);
  cursor:pointer;
  transition:var(--t);
  flex:0 0 auto;
}
.nav-toggle span{display:block;height:2px;width:18px;background:#fff;margin:0 auto;border-radius:2px;transition:var(--t)}
.site-header.is-scrolled .nav-toggle{background:var(--bg-alt);border-color:var(--border)}
.site-header.is-scrolled .nav-toggle span{background:var(--text)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  border:1.5px solid transparent;
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  cursor:pointer;
  text-decoration:none;
  transition:transform var(--t),background var(--t),color var(--t),border-color var(--t),box-shadow var(--t);
}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 8px 20px rgba(226,61,40,.26);
}
.btn-primary:hover,.btn-primary:focus{
  background:var(--primary-deep);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 12px 26px rgba(176,42,27,.3);
}
.btn-ghost{
  background:transparent;
  border-color:var(--secondary);
  color:var(--secondary);
}
.btn-ghost:hover,.btn-ghost:focus{background:rgba(15,61,58,.08);color:var(--secondary)}
.btn-ghost-invert{
  background:rgba(255,255,255,.1);
  border-color:rgba(255,255,255,.6);
  color:#fff;
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
}
.btn-ghost-invert:hover,.btn-ghost-invert:focus{background:rgba(255,255,255,.2);color:#fff}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.5;filter:saturate(.5);pointer-events:none;transform:none}

/* ============ 标签 / 徽章 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.06em;
  font-weight:600;
  background:rgba(226,61,40,.1);
  color:var(--primary-deep);
  border:1px solid rgba(226,61,40,.18);
}
.badge-accent{background:rgba(242,169,59,.16);color:#8a5a06;border-color:rgba(242,169,59,.36)}
.badge-invert{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.28)}

/* ============ 页面顶部标题区 ============ */
.page-hero{
  position:relative;
  background:var(--secondary);
  color:var(--text-invert);
  padding:150px 0 76px;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:repeating-linear-gradient(0deg,rgba(255,255,255,.055) 0 1px,transparent 1px 9px);
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-140px;top:-120px;
  width:460px;height:460px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(226,61,40,.35),transparent 66%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb-static{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:rgba(244,241,234,.66);
  margin-bottom:22px;
}
.breadcrumb-static a{color:rgba(244,241,234,.82)}
.breadcrumb-static a:hover{color:var(--accent)}
.breadcrumb-static span.sep{color:rgba(244,241,234,.4)}
.breadcrumb-static .current{color:rgba(244,241,234,.62)}
.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--accent);
  font-weight:700;
  margin-bottom:16px;
}
.hero-kicker::before{
  content:"";
  width:22px;height:2px;
  background:var(--accent);
  border-radius:2px;
}
.page-hero h1{
  font-size:clamp(30px,3.6vw,44px);
  line-height:1.32;
  letter-spacing:.01em;
  color:#fff;
  max-width:860px;
  margin-bottom:20px;
}
.hero-lead{
  max-width:760px;
  font-size:17px;
  line-height:1.95;
  color:rgba(244,241,234,.84);
  margin-bottom:30px;
}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:12px 32px;
  padding-top:22px;
  border-top:1px solid var(--border-dark);
}
.hero-fact{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:rgba(244,241,234,.82);
}
.hero-fact svg{width:17px;height:17px;stroke:var(--accent);stroke-width:1.9;fill:none;flex:0 0 auto}

/* ============ 主体布局 ============ */
.page-main{padding:72px 0 24px}
.page-layout{display:flex;flex-wrap:wrap;margin:0 -20px}
.page-layout>.cell{padding:0 20px}

/* 目录 */
.toc-col{position:relative}
.toc-card{
  position:sticky;
  top:96px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:24px 22px;
}
.toc-title{
  font-size:13px;
  letter-spacing:.14em;
  color:var(--text-2);
  font-weight:700;
  padding-bottom:14px;
  margin-bottom:14px;
  border-bottom:1px dashed var(--border);
}
.toc-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:4px}
.toc-list a{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14.5px;
  color:var(--text-2);
  padding:9px 10px;
  border-radius:9px;
  border-left:2px solid transparent;
  transition:var(--t);
}
.toc-list a .toc-index{
  font-size:12px;
  color:#b9b1a5;
  font-variant-numeric:tabular-nums;
  font-weight:700;
}
.toc-list a:hover{background:var(--bg-alt);color:var(--text)}
.toc-list a.is-current{
  background:rgba(226,61,40,.07);
  color:var(--primary-deep);
  border-left-color:var(--primary);
  font-weight:700;
}
.toc-list a.is-current .toc-index{color:var(--primary)}
.toc-note{
  margin-top:20px;
  padding-top:16px;
  border-top:1px solid var(--border);
  font-size:13px;
  line-height:1.8;
  color:var(--text-2);
}
.toc-cta{margin-top:16px}

/* 长文分节 */
.doc-section{
  position:relative;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:34px 34px 30px;
  margin-bottom:24px;
  transition:box-shadow var(--t),border-color var(--t);
  scroll-margin-top:100px;
}
.doc-section:hover{box-shadow:var(--shadow-2)}
.doc-index{
  font-size:44px;
  font-weight:800;
  line-height:1;
  color:rgba(15,61,58,.08);
  font-variant-numeric:tabular-nums;
  margin-bottom:6px;
  letter-spacing:.02em;
}
.doc-section h2{
  font-size:clamp(22px,2.1vw,27px);
  line-height:1.4;
  padding-left:16px;
  position:relative;
  margin-bottom:18px;
}
.doc-section h2::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:4px;
  border-radius:2px;
  background:var(--primary);
}
.doc-section h3{
  font-size:19px;
  margin:26px 0 12px;
  color:var(--secondary);
}
.doc-section p{color:#39413e;line-height:1.95}
.doc-section p strong{color:var(--text);font-weight:700}

/* 迷你卡片网格 */
.mini-grid{margin:0 -8px}
.mini-grid>.cell{padding:0 8px;margin-bottom:16px}
.mini-card{
  height:100%;
  background:var(--bg-alt);
  border:1px solid var(--border);
  border-radius:12px;
  padding:20px;
  transition:var(--t);
}
.mini-card:hover{
  background:#fff;
  border-color:rgba(226,61,40,.3);
  box-shadow:var(--shadow-1);
  transform:translateY(-4px);
}
.mini-card .mini-icon{
  width:38px;height:38px;
  border-radius:11px;
  background:rgba(226,61,40,.1);
  display:grid;place-items:center;
  margin-bottom:14px;
}
.mini-card .mini-icon svg{width:20px;height:20px;stroke:var(--primary);stroke-width:1.8;fill:none}
.mini-card h4{font-size:16.5px;margin-bottom:8px}
.mini-card p{font-size:14.5px;color:var(--text-2);line-height:1.85;margin:0}

/* 层级列表 */
.level-list{list-style:none;padding:0;margin:22px 0 0;display:flex;flex-direction:column;gap:12px}
.level-list li{
  display:flex;
  gap:16px;
  padding:18px 20px;
  border:1px solid var(--border);
  border-radius:12px;
  background:#fff;
  transition:var(--t);
}
.level-list li:hover{border-color:rgba(226,61,40,.3);box-shadow:var(--shadow-1)}
.level-tag{
  flex:0 0 auto;
  align-self:flex-start;
  min-width:96px;
  height:28px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:999px;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.04em;
  background:rgba(15,61,58,.08);
  color:var(--secondary);
}
.level-tag.is-red{background:rgba(226,61,40,.1);color:var(--primary-deep)}
.level-body strong{display:block;font-size:16px;margin-bottom:4px}
.level-body span{font-size:14.5px;color:var(--text-2);line-height:1.85}

/* 步骤 */
.steps{list-style:none;padding:0;margin:24px 0 0;counter-reset:step}
.steps li{
  position:relative;
  padding:0 0 26px 44px;
  margin-left:16px;
  border-left:2px dashed var(--border);
}
.steps li:last-child{border-left-color:transparent;padding-bottom:0}
.steps li::before{
  counter-increment:step;
  content:counter(step,decimal-leading-zero);
  position:absolute;
  left:-17px;top:0;
  width:32px;height:32px;
  border-radius:50%;
  background:var(--primary);
  color:#fff;
  font-size:12.5px;
  font-weight:700;
  display:grid;place-items:center;
  font-variant-numeric:tabular-nums;
  box-shadow:0 4px 12px rgba(226,61,40,.3);
}
.steps li strong{display:block;font-size:16.5px;margin-bottom:4px}
.steps li span{font-size:14.5px;color:var(--text-2);line-height:1.85}

/* 插图 */
.doc-figure{margin:24px 0 0}
.doc-figure img{
  width:100%;
  border-radius:var(--radius-img);
  object-fit:cover;
  aspect-ratio:16/9;
}
.doc-figure figcaption{
  font-size:13px;
  color:var(--text-2);
  margin-top:10px;
  text-align:center;
}

/* 数据条 */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  overflow:hidden;
  background:#fff;
  margin-top:24px;
}
.stat-item{padding:24px 22px;border-right:1px solid var(--border)}
.stat-item:last-child{border-right:0}
.stat-num{
  font-size:clamp(34px,3.4vw,44px);
  font-weight:800;
  color:var(--secondary);
  line-height:1.1;
  font-variant-numeric:tabular-nums;
  display:flex;
  align-items:baseline;
  gap:6px;
}
.stat-num em{font-size:15px;font-style:normal;font-weight:600;color:var(--text-2)}
.stat-label{font-size:13.5px;color:var(--text-2);margin-top:8px;line-height:1.7}

/* 图文卡 */
.feature-card{
  display:grid;
  grid-template-columns:1fr 240px;
  gap:24px;
  align-items:center;
  background:var(--bg-alt);
  border:1px solid var(--border);
  border-radius:14px;
  padding:24px;
  margin-top:24px;
}
.feature-card img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--radius-img);
}
.feature-card h3{margin:0 0 10px;font-size:18px;color:var(--secondary)}
.feature-card p{font-size:14.8px;color:var(--text-2);line-height:1.9;margin:0}

/* FAQ */
.accordion{background:transparent;border:0;margin:22px 0 0}
.accordion .accordion-item{
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  background:#fff;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:var(--t);
}
.accordion .accordion-item.is-active{border-color:rgba(226,61,40,.35);box-shadow:var(--shadow-2)}
.accordion .accordion-title{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:18px 54px 18px 20px;
  font-size:17px;
  font-weight:700;
  color:var(--text);
  background:#fff;
  border:0;
  position:relative;
  line-height:1.6;
}
.accordion .accordion-title:hover{background:#fff;color:var(--primary-deep)}
.accordion .accordion-title::before{display:none}
.accordion .accordion-title::after{
  content:"+";
  position:absolute;
  right:20px;top:16px;
  font-size:22px;
  font-weight:400;
  color:var(--primary);
  line-height:1;
}
.accordion .accordion-item.is-active .accordion-title::after{content:"×"}
.accordion .accordion-item.is-active .accordion-title{border-left:3px solid var(--primary);padding-left:17px}
.accordion .accordion-title .faq-num{
  flex:0 0 auto;
  font-size:12px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:.08em;
  padding-top:5px;
  font-variant-numeric:tabular-nums;
}
.accordion .accordion-content{
  border:0;
  padding:0 22px 20px 46px;
  color:var(--text-2);
  font-size:15.5px;
  line-height:1.9;
  background:#fff;
}
.accordion .accordion-content p{margin:0;color:var(--text-2);font-size:15.5px}

/* 相关分类 */
.related-section{padding:56px 0 8px}
.section-head{margin-bottom:32px;max-width:760px}
.section-head h2{font-size:clamp(23px,2.4vw,29px);line-height:1.4}
.section-head p{margin-top:10px;font-size:15.5px;color:var(--text-2)}
.link-cards{margin:0 -12px}
.link-cards>.cell{padding:0 12px;margin-bottom:24px}
.link-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:var(--t);
  text-decoration:none;
}
.link-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(226,61,40,.3);
}
.link-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.link-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.link-card-body h3{font-size:17.5px;margin-bottom:8px;color:var(--text)}
.link-card-body p{font-size:14.5px;color:var(--text-2);line-height:1.85;margin-bottom:16px}
.link-card-body .link-more{
  margin-top:auto;
  font-size:14px;
  font-weight:700;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.link-card:hover .link-more{color:var(--primary-deep)}

/* 表单 CTA */
.cta-section{padding:56px 0 88px}
.cta-band{
  position:relative;
  background:var(--secondary);
  border-radius:18px;
  padding:44px;
  color:var(--text-invert);
  overflow:hidden;
  box-shadow:0 18px 44px rgba(15,61,58,.2);
}
.cta-band::after{
  content:"";
  position:absolute;
  left:-80px;bottom:-120px;
  width:320px;height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(242,169,59,.24),transparent 68%);
  pointer-events:none;
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.25fr 1fr;gap:40px}
.cta-grid h2{color:#fff;font-size:clamp(22px,2.3vw,28px);line-height:1.42;margin-bottom:12px}
.cta-grid .cta-desc{color:rgba(244,241,234,.82);font-size:15.5px;line-height:1.9;margin-bottom:22px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:13px;color:rgba(244,241,234,.78);letter-spacing:.02em}
.field input,.field select,.field textarea{
  width:100%;
  height:46px;
  padding:0 14px;
  border-radius:var(--radius-input);
  border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.08);
  color:#fff;
  font-size:15px;
  transition:var(--t);
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;line-height:1.75;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:rgba(244,241,234,.5)}
.field select option{color:#1F2422}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 4px rgba(242,169,59,.16);
  background:rgba(255,255,255,.14);
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-hint{font-size:12.5px;color:rgba(244,241,234,.6);margin-top:14px;line-height:1.75}
.cta-side{
  border:1px solid var(--border-dark);
  border-radius:14px;
  padding:24px;
  background:rgba(255,255,255,.05);
}
.cta-side h3{color:#fff;font-size:17px;margin-bottom:14px}
.cta-side ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:14px}
.cta-side li{font-size:14.5px;line-height:1.8;color:rgba(244,241,234,.82);padding-left:18px;position:relative}
.cta-side li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--accent);
}
.cta-side li strong{display:block;color:#fff;font-weight:700}

/* 页脚 */
.site-footer{
  background:var(--secondary);
  color:rgba(244,241,234,.86);
  padding:64px 0 26px;
}
.footer-top{
  border:1px solid var(--border-dark);
  border-radius:var(--radius-card);
  padding:22px 24px;
  font-size:15px;
  line-height:1.9;
  color:rgba(244,241,234,.82);
  margin-bottom:44px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;letter-spacing:.04em}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.site-footer .brand-mark{width:36px;height:36px;border-radius:10px}
.site-footer .brand-mark svg{width:20px;height:20px}
.site-footer .brand-text{display:flex;flex-direction:column;line-height:1.25}
.site-footer .brand-name{font-size:15px;font-weight:800;color:#fff;display:block}
.site-footer .brand-sub{font-size:10px;letter-spacing:.18em;color:rgba(255,255,255,.6);display:block}
.site-footer p{margin:0;font-size:14.5px;line-height:1.85;color:rgba(244,241,234,.76)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:rgba(244,241,234,.78);font-size:14.5px}
.footer-links a:hover{color:var(--accent)}
.footer-info{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:14px;font-size:14px}
.footer-info li{line-height:1.75;color:rgba(244,241,234,.76)}
.footer-info strong{display:block;color:#fff;font-weight:600;margin-bottom:2px}
.footer-bottom{
  border-top:1px solid var(--border-dark);
  margin-top:40px;
  padding-top:20px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(244,241,234,.6);
}

/* 响应式 */
@media screen and (max-width:1199px){
  .nav-links{gap:20px}
  .nav-link{font-size:14.5px}
}
@media screen and (max-width:1023px){
  .container,.grid-container{padding-left:32px;padding-right:32px}
  .page-hero{padding:132px 0 60px}
  .page-main{padding:56px 0 16px}
  .page-layout{margin:0}
  .page-layout>.cell{padding:0}
  .toc-col{display:none}
  .doc-section{padding:28px 24px 24px}
  .stat-strip{grid-template-columns:1fr 1fr}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(3){border-right:0;border-top:1px solid var(--border)}
  .stat-item:nth-child(1){border-top:0}
  .feature-card{grid-template-columns:1fr;gap:18px}
  .feature-card img{aspect-ratio:16/9}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .cta-band{padding:32px 26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .nav-links{
    position:fixed;
    top:0;right:0;
    height:100vh;
    width:min(320px,84vw);
    background:rgba(15,61,58,.97);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    flex-direction:column;
    align-items:flex-start;
    gap:2px;
    padding:96px 26px 32px;
    margin-left:0;
    transform:translateX(102%);
    transition:transform .3s ease;
    z-index:90;
    box-shadow:-12px 0 40px rgba(15,61,58,.3);
    overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-link{
    width:100%;
    font-size:17px;
    color:rgba(255,255,255,.9);
    padding:14px 0;
    border-bottom:1px solid var(--border-dark);
  }
  .nav-link::after{bottom:8px;left:0;right:auto;width:28px}
  .site-header.is-scrolled .nav-link{color:rgba(255,255,255,.9)}
  .site-header.is-scrolled .nav-link:hover,
  .site-header.is-scrolled .nav-link.is-active{color:#fff}
  .nav-search{display:none}
  .nav-toggle{display:flex}
  .nav-actions{gap:10px}
}
@media screen and (max-width:767px){
  .brand-name{font-size:14px}
  .btn{height:44px;font-size:14.5px;padding:0 18px}
  .nav-cta{display:none}
  .section-head p{font-size:15px}
  .doc-index{font-size:36px}
  .level-list li{flex-direction:column;gap:10px}
  .field-row{grid-template-columns:1fr}
  .mini-grid{margin:0}
  .mini-grid>.cell{padding:0}
  .link-cards{margin:0}
  .link-cards>.cell{padding:0}
}
@media screen and (max-width:639px){
  .container,.grid-container{padding-left:20px;padding-right:20px}
  .page-hero{padding:118px 0 52px}
  .hero-lead{font-size:15.5px}
  .stat-strip{grid-template-columns:1fr}
  .stat-item{border-right:0;border-top:1px solid var(--border)}
  .stat-item:first-child{border-top:0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-band{padding:26px 20px}
  .accordion .accordion-content{padding:0 18px 18px 18px}
  .doc-section{padding:24px 18px 20px}
  .footer-bottom{flex-direction:column;gap:8px}
}