/* roulang page: index */
:root{
  --brand-900:#0C2F29;
  --brand-700:#14544A;
  --brand-500:#1E8A76;
  --brand-300:#6FC3B1;
  --brand-050:#EAF5F2;
  --accent-600:#D9772B;
  --accent-500:#F0932B;
  --accent-100:#FDECD9;
  --ink-900:#14201D;
  --ink-600:#4A5A56;
  --ink-400:#7C8B87;
  --line:#E4E0D6;
  --paper:#F7F4EE;
  --card:#FFFFFF;
  --grad:linear-gradient(135deg,#0C2F29 0%,#1E8A76 62%,#6FC3B1 100%);
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:12px;
  --shadow-1:0 1px 2px rgba(12,47,41,.06),0 8px 24px -16px rgba(12,47,41,.18);
  --shadow-2:0 2px 4px rgba(12,47,41,.06),0 24px 48px -24px rgba(12,47,41,.28);
  --container:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--paper);
  color:var(--ink-900);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.2px;}
p{margin:0;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
table{border-collapse:collapse;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px;}
::selection{background:var(--brand-300);color:var(--brand-900);}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:104px 0;}
.section-sm{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px;}
.section-head h2{font-size:32px;color:var(--brand-900);}
.section-head .section-sub{margin-top:12px;font-size:16px;color:var(--ink-600);max-width:640px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-700);background:var(--brand-050);padding:6px 14px;border-radius:999px;}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-500);}

/* 顶部信息条 */
.topbar{background:var(--brand-900);color:#D8E7E2;font-size:13px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:38px;}
.topbar-domain{font-weight:600;letter-spacing:.6px;color:#FFFFFF;font-variant-numeric:tabular-nums;}
.topbar-tip{color:#9FC7BD;display:flex;align-items:center;gap:8px;}
.topbar-tip::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500);box-shadow:0 0 0 3px rgba(240,147,43,.22);}
.topbar-actions{display:flex;align-items:center;gap:22px;}
.topbar-link{display:inline-flex;align-items:center;gap:6px;color:#D8E7E2;transition:color .16s var(--ease);}
.topbar-link span{transition:transform .16s var(--ease);}
.topbar-link:hover{color:#FFFFFF;}
.topbar-link:hover span{transform:translateX(4px);}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:60;}
.mainnav{
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease),background .24s var(--ease);
}
.mainnav.is-scrolled{box-shadow:0 10px 30px -22px rgba(12,47,41,.5);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;height:72px;transition:height .24s var(--ease);}
.mainnav.is-scrolled .nav-inner{height:60px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);color:#F7F4EE;
  display:grid;place-items:center;font-size:17px;font-weight:700;flex-shrink:0;
  box-shadow:0 8px 18px -12px rgba(12,47,41,.9);
}
.logo-text{font-size:17px;font-weight:700;color:var(--brand-900);letter-spacing:.3px;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-block;padding:10px 14px;font-size:15px;color:var(--ink-600);
  border-radius:10px;transition:color .16s var(--ease),background .16s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand-500);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--brand-700);background:var(--brand-050);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-700);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:16px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700);}
.text-link span{transition:transform .16s var(--ease);}
.text-link:hover span{transform:translateX(4px);}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;flex-direction:column;justify-content:center;align-items:center;gap:5px;}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-900);transition:transform .2s var(--ease),opacity .2s var(--ease);}
.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);}

/* 移动抽屉 */
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82%;max-width:340px;background:#fff;z-index:90;
  transform:translateX(100%);transition:transform .28s var(--ease);box-shadow:-20px 0 60px -30px rgba(12,47,41,.6);
  padding:28px 22px;overflow-y:auto;display:flex;flex-direction:column;gap:20px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-title{font-size:13px;color:var(--ink-400);letter-spacing:1px;text-transform:uppercase;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{padding:14px 12px;border-radius:12px;font-size:15px;color:var(--ink-600);border:1px solid transparent;}
.drawer-nav a:hover{background:var(--brand-050);color:var(--brand-700);}
.drawer-nav a.is-active{background:var(--brand-050);color:var(--brand-700);font-weight:600;border-color:#CFE7E0;}
.drawer-foot{margin-top:auto;font-size:13px;color:var(--ink-400);display:flex;flex-direction:column;gap:6px;}
.drawer-mask{position:fixed;inset:0;background:rgba(12,47,41,.45);opacity:0;pointer-events:none;transition:opacity .28s var(--ease);z-index:80;}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:14px;
  font-size:15px;font-weight:600;padding:14px 26px;border:1.5px solid transparent;
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#F7F4EE;box-shadow:inset 0 1px 0 rgba(255,255,255,.25),var(--shadow-1);background-size:160% 160%;}
.btn-primary:hover{transform:translateY(-2px);box-shadow:inset 0 1px 0 rgba(255,255,255,.3),var(--shadow-2);background-position:100% 100%;}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:#fff;border-color:var(--brand-500);color:var(--brand-700);}
.btn-outline:hover{background:var(--brand-050);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.btn-outline:active{transform:translateY(1px);}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:12px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.6;pointer-events:none;}

/* 徽章 */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px;line-height:1.6;}
.badge-dot::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;}
.badge-amber{background:var(--accent-100);color:#A2531A;}
.badge-brand{background:var(--brand-050);color:var(--brand-700);}
.badge-dark{background:var(--brand-900);color:#EAF5F2;}
.badge-glass{background:rgba(255,255,255,.88);color:var(--brand-900);box-shadow:var(--shadow-1);}

/* Hero */
.hero{position:relative;overflow:hidden;padding:76px 0 92px;}
.hero::before{
  content:"";position:absolute;inset:0;background:var(--paper);z-index:-2;
}
.hero-bg{
  position:absolute;top:-160px;right:-140px;width:880px;height:880px;z-index:-1;
  background:var(--grad);opacity:.14;
  clip-path:polygon(28% 0,100% 0,100% 100%,0 74%,12% 34%);
}
.hero-grid-bg{
  position:absolute;left:0;right:0;bottom:0;height:320px;z-index:-1;
  background-image:linear-gradient(rgba(12,47,41,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(12,47,41,.06) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:linear-gradient(to top,rgba(0,0,0,.65),transparent);
  -webkit-mask-image:linear-gradient(to top,rgba(0,0,0,.65),transparent);
}
.hero-layout{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero-copy h1{font-size:42px;line-height:1.28;color:var(--brand-900);margin:20px 0 18px;}
.hero-copy h1 em{font-style:normal;color:var(--brand-500);}
.hero-lead{font-size:17px;color:var(--ink-600);max-width:540px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3.1;object-fit:cover;border-radius:28px;box-shadow:var(--shadow-2);
}
.float-badge{
  position:absolute;display:inline-flex;align-items:center;gap:10px;padding:12px 18px;border-radius:999px;
  background:#fff;box-shadow:var(--shadow-2);font-size:13px;color:var(--ink-600);
}
.float-badge strong{font-size:18px;color:var(--brand-900);font-variant-numeric:tabular-nums;}
.float-badge .fb-icon{width:32px;height:32px;border-radius:10px;background:var(--accent-100);color:var(--accent-600);display:grid;place-items:center;font-size:15px;}
.float-badge.tl{top:-18px;left:-18px;}
.float-badge.br{bottom:-18px;right:-14px;}
.float-badge.br .fb-icon{background:var(--brand-050);color:var(--brand-700);}

/* 指标看板 */
.metrics{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.metric-card{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:30px 26px 24px;overflow:hidden;transition:transform .16s var(--ease),box-shadow .16s var(--ease),border-color .16s var(--ease);
}
.metric-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#CFE7E0;}
.metric-card .bar{position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad);}
.metric-card:nth-child(2) .bar{background:linear-gradient(90deg,#14544A,#6FC3B1);}
.metric-card:nth-child(3) .bar{background:linear-gradient(90deg,#D9772B,#F0932B);}
.metric-card:nth-child(4) .bar{background:linear-gradient(90deg,#1E8A76,#F0932B);}
.metric-icon{width:44px;height:44px;border-radius:14px;background:var(--brand-050);color:var(--brand-700);display:grid;place-items:center;font-size:19px;margin-bottom:18px;}
.metric-value{font-size:44px;font-weight:700;color:var(--brand-900);font-variant-numeric:tabular-nums;line-height:1.1;}
.metric-value .unit{font-size:15px;font-weight:600;color:var(--ink-400);margin-left:6px;}
.metric-note{font-size:13px;color:var(--ink-600);margin-top:10px;}
.metric-track{margin-top:18px;height:6px;border-radius:999px;background:#EFEBE1;overflow:hidden;}
.metric-track b{display:block;height:100%;border-radius:999px;background:var(--grad);}

/* 服务矩阵 */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.b-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;display:flex;flex-direction:column;gap:14px;overflow:hidden;
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),border-color .16s var(--ease);
}
.b-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-300);}
.b-card:hover .b-icon{background:var(--brand-500);color:#EAF5F2;}
.b-icon{width:48px;height:48px;border-radius:16px;background:var(--brand-050);color:var(--brand-700);display:grid;place-items:center;font-size:20px;transition:background .16s var(--ease),color .16s var(--ease);}
.b-card h3{font-size:20px;color:var(--brand-900);}
.b-card p{font-size:14px;color:var(--ink-600);}
.b-more{margin-top:auto;font-size:14px;font-weight:600;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px;}
.b-more i{font-style:normal;transition:transform .16s var(--ease);}
.b-card:hover .b-more i{transform:translateX(4px);}
.b-lg{grid-column:span 8;flex-direction:row;align-items:center;gap:32px;}
.b-lg .b-text{flex:1;display:flex;flex-direction:column;gap:14px;}
.b-lg img{width:46%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--radius-md);}
.b-sm{grid-column:span 4;}
.b-md{grid-column:span 4;}
.b-wide{grid-column:span 12;flex-direction:row;align-items:center;gap:22px;padding:24px 30px;}
.b-wide .b-icon{margin:0;}
.b-wide .b-wide-text{flex:1;}
.b-wide h3{font-size:18px;margin-bottom:4px;}
.b-wide .b-more{margin:0;}
.b-dark{background:var(--grad);border-color:transparent;color:#EAF5F2;}
.b-dark h3{color:#FFFFFF;}
.b-dark p{color:#C9E3DC;}
.b-dark .b-icon{background:rgba(255,255,255,.16);color:#FFFFFF;}
.b-dark .b-more{color:#FFFFFF;}
.b-dark:hover{border-color:transparent;}
.b-dark:hover .b-icon{background:rgba(255,255,255,.28);color:#FFFFFF;}
.b-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px;}

/* 对比区 */
.compare-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:0;overflow:hidden;box-shadow:var(--shadow-1);}
.compare-top{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:24px 30px;border-bottom:1px solid var(--line);flex-wrap:wrap;}
.compare-grid{display:grid;grid-template-columns:1fr 1fr;position:relative;}
.compare-grid::after{content:"";position:absolute;top:24px;bottom:24px;left:50%;border-left:2px dashed #D9D3C6;}
.compare-col{padding:22px 30px 30px;}
.compare-col.new{border-left:0;background:linear-gradient(180deg,#F3FAF7,#FFFFFF);}
.compare-col-title{font-size:13px;font-weight:700;letter-spacing:.6px;color:var(--ink-400);margin-bottom:16px;text-transform:uppercase;}
.compare-col.new .compare-col-title{color:var(--brand-700);}
.cmp-row{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:62px;border-bottom:1px dashed #E9E4D9;font-size:14px;}
.cmp-row:last-child{border-bottom:0;}
.compare-col.old .cmp-row{color:var(--ink-400);}
.cmp-name{flex:1;color:var(--ink-600);}
.compare-col.old .cmp-name{color:var(--ink-600);}
.cmp-val{font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap;}
.compare-col.old .cmp-val{color:var(--ink-600);}
.cmp-new-cell{display:flex;flex-direction:column;align-items:flex-end;gap:8px;min-width:132px;}
.cmp-new-cell .cmp-val{color:var(--brand-900);display:inline-flex;align-items:center;gap:6px;font-size:15px;}
.cmp-new-cell .cmp-val i{font-style:normal;color:var(--accent-600);font-size:13px;}
.cmp-bar{display:block;width:100%;height:6px;border-radius:999px;background:#E6E1D6;overflow:hidden;}
.cmp-bar b{display:block;height:100%;width:0;border-radius:999px;background:var(--grad);transition:width 1s var(--ease);}

/* 资讯卡片 */
.post-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;}
.post-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;transition:transform .16s var(--ease),box-shadow .16s var(--ease),border-color .16s var(--ease);
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-300);}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EAE6DC;}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-cat{position:absolute;top:14px;left:14px;background:rgba(255,255,255,.92);color:var(--brand-700);font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px;backdrop-filter:blur(4px);}
.post-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.post-title{font-size:19px;color:var(--brand-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-summary{font-size:14px;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-400);flex-wrap:wrap;}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--ink-400);display:inline-block;}
.empty-state{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center;
  background:#fff;border:1px dashed #D9D3C6;border-radius:var(--radius-lg);padding:64px 24px;
}
.empty-state .es-icon{width:64px;height:64px;border-radius:20px;background:var(--brand-050);color:var(--brand-500);display:grid;place-items:center;font-size:26px;}
.empty-state p{color:var(--ink-600);font-size:15px;}

/* FAQ */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:border-color .16s var(--ease),box-shadow .16s var(--ease);}
.faq-item:hover{border-color:var(--brand-300);box-shadow:var(--shadow-1);}
.faq-item[open]{box-shadow:var(--shadow-1);border-color:#CFE7E0;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;min-height:56px;font-size:17px;font-weight:600;color:var(--brand-900);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex-shrink:0;width:28px;height:28px;border-radius:50%;background:var(--brand-050);color:var(--brand-700);
  display:grid;place-items:center;font-size:17px;font-weight:600;transition:transform .18s var(--ease),background .18s var(--ease);transform-origin:center;
}
.faq-item[open] summary::after{content:"−";background:var(--brand-500);color:#fff;transform:rotate(180deg);}
.faq-answer{padding:0 24px 22px;border-top:1px solid var(--line);color:var(--ink-600);font-size:15px;}
.faq-answer p{padding-top:18px;}

/* 表单 */
.cta-band{position:relative;background:var(--grad);border-radius:32px;overflow:hidden;padding:64px 56px;color:#EAF5F2;}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:40px 40px;opacity:.6;
}
.cta-layout{position:relative;z-index:1;display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.cta-copy h2{font-size:32px;color:#fff;line-height:1.35;}
.cta-copy .cta-sub{margin-top:14px;font-size:16px;color:#C9E3DC;}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:14px;}
.cta-points li{display:flex;align-items:center;gap:12px;font-size:15px;color:#E6F3EF;}
.cta-points .pt-icon{width:30px;height:30px;border-radius:10px;background:rgba(255,255,255,.16);display:grid;place-items:center;font-size:14px;color:#fff;flex-shrink:0;}
.cta-contact{margin-top:28px;display:flex;flex-direction:column;gap:8px;font-size:14px;color:#C9E3DC;border-top:1px solid rgba(255,255,255,.2);padding-top:22px;}
.cta-contact strong{color:#fff;font-weight:600;}
.form-card{background:#fff;border-radius:24px;padding:34px;box-shadow:var(--shadow-2);}
.form-card h3{font-size:20px;color:var(--brand-900);margin-bottom:6px;}
.form-card .form-hint{font-size:13px;color:var(--ink-400);margin-bottom:22px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-600);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;height:48px;border-radius:12px;border:1.5px solid var(--line);background:#FDFCFA;
  padding:0 14px;font-size:15px;color:var(--ink-900);transition:border-color .16s var(--ease),box-shadow .16s var(--ease),background .16s var(--ease);
}
.field textarea{height:112px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink-600) 50%),linear-gradient(135deg,var(--ink-600) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);background:#fff;box-shadow:0 0 0 3px rgba(30,138,118,.14);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:#D9532B;box-shadow:0 0 0 3px rgba(217,83,43,.12);}
.field .err-msg{display:none;font-size:12px;color:#C0451F;margin-top:6px;}
.field.has-error .err-msg{display:block;}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--ink-600);margin:4px 0 22px;}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand-500);}
.form-success{
  display:none;align-items:center;gap:12px;background:var(--brand-050);border:1px solid #CFE7E0;color:var(--brand-700);
  border-radius:14px;padding:16px 18px;font-size:14px;font-weight:600;margin-bottom:18px;
}
.form-success.is-show{display:flex;}
.form-success .ok-icon{width:28px;height:28px;border-radius:50%;background:var(--brand-500);color:#fff;display:grid;place-items:center;font-size:14px;flex-shrink:0;}

/* 页脚 */
.site-footer{background:var(--brand-900);color:#B9D3CC;margin-top:0;position:relative;}
.footer-bar{height:4px;background:var(--grad);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding:64px 0 46px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{font-size:14px;color:#9FC7BD;margin-top:16px;max-width:300px;}
.footer-social{display:flex;gap:12px;margin-top:20px;}
.social-box{width:86px;height:64px;border-radius:12px;border:1px dashed rgba(255,255,255,.28);display:grid;place-items:center;font-size:12px;color:#9FC7BD;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14px;color:#9FC7BD;transition:color .16s var(--ease);}
.footer-col a:hover{color:#fff;}
.footer-col .ft-plain{font-size:14px;color:#9FC7BD;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0;font-size:13px;color:#87AFA6;flex-wrap:wrap;}
.footer-domain{font-variant-numeric:tabular-nums;letter-spacing:.5px;}

/* 动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--ease),transform .32s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* 响应式 */
@media (max-width:1279px){
  .hero-copy h1{font-size:38px;}
  .metric-value{font-size:38px;}
}
@media (max-width:1023px){
  .section{padding:80px 0;}
  .nav-links{display:none;}
  .nav-actions .text-link{display:none;}
  .nav-toggle{display:flex;}
  .topbar-tip{display:none;}
  .hero{padding:56px 0 72px;}
  .hero-layout{grid-template-columns:1fr;gap:44px;}
  .hero-copy h1{font-size:34px;}
  .hero-visual{order:2;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .b-lg{grid-column:span 12;flex-direction:column;align-items:flex-start;}
  .b-lg img{width:100%;}
  .b-sm,.b-md{grid-column:span 6;}
  .cta-layout{grid-template-columns:1fr;gap:34px;}
  .cta-band{padding:44px 32px;border-radius:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .compare-grid::after{display:none;}
  .compare-grid{grid-template-columns:1fr;}
  .compare-col.new{border-top:2px dashed #D9D3C6;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:64px 0;}
  .section-sm{padding:52px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:18px;margin-bottom:32px;}
  .section-head h2{font-size:26px;}
  .hero-copy h1{font-size:30px;}
  .hero-lead{font-size:16px;}
  .hero-cta .btn{flex:1 1 auto;}
  .float-badge{position:static;margin-top:12px;display:inline-flex;}
  .hero-visual{display:flex;flex-wrap:wrap;gap:10px;}
  .hero-visual img{margin-bottom:0;}
  .hero-badges-inline{display:flex;flex-wrap:wrap;gap:10px;}
  .post-grid{grid-template-columns:1fr;}
  .b-sm,.b-md{grid-column:span 12;}
  .b-wide{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;padding:48px 0 36px;}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start;}
  .cta-band{padding:34px 22px;border-radius:22px;}
  .cta-copy h2{font-size:24px;}
  .form-card{padding:26px 20px;}
}
@media (max-width:479px){
  .container{padding:0 16px;}
  .hero-copy h1{font-size:26px;}
  .metric-value{font-size:30px;}
  .metric-card{padding:24px 20px 20px;}
  .topbar-inner{min-height:34px;}
  .topbar-domain{font-size:12px;}
  .logo-text{font-size:15px;}
  .btn{padding:12px 20px;font-size:14px;}
}

/* roulang page: article */
:root{
  --brand-900:#0C2F29;
  --brand-700:#14544A;
  --brand-500:#1E8A76;
  --brand-300:#6FC3B1;
  --brand-soft:#EAF5F2;
  --accent-600:#D9772B;
  --accent-500:#F0932B;
  --accent-100:#FDECD9;
  --ink-900:#14201D;
  --ink-600:#4A5A56;
  --ink-400:#7C8B87;
  --line:#E4E0D6;
  --paper:#F7F4EE;
  --card:#FFFFFF;
  --grad:linear-gradient(135deg,#0C2F29 0%,#1E8A76 62%,#6FC3B1 100%);
  --shadow-1:0 1px 2px rgba(12,47,41,.06),0 8px 24px -16px rgba(12,47,41,.18);
  --shadow-2:0 2px 4px rgba(12,47,41,.06),0 24px 48px -24px rgba(12,47,41,.28);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --h-nav:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-900);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--brand-900);color:#DCE9E5;font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px}
.topbar-domain{letter-spacing:.4px;color:#9FD5C7;font-weight:600}
.topbar-tip{color:#B9CFC9;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-actions{display:flex;align-items:center;gap:18px}
.topbar-link{color:#DCE9E5;display:inline-flex;align-items:center;gap:4px;transition:color .16s ease}
.topbar-link:hover{color:#fff}
.topbar-link span{transition:transform .16s ease}
.topbar-link:hover span{transform:translateX(3px)}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:80}
.mainnav{background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);transition:box-shadow .2s ease}
.site-header.is-scrolled .mainnav{box-shadow:var(--shadow-1)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--h-nav);transition:height .2s ease}
.site-header.is-scrolled .nav-inner{height:60px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--brand-900)}
.logo-mark{width:34px;height:34px;border-radius:11px;background:var(--grad);color:#F3FBF8;display:grid;place-items:center;font-size:15px;font-weight:700;box-shadow:var(--shadow-1)}
.logo-text{white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{position:relative;display:inline-block;padding:9px 14px;border-radius:10px;font-size:15px;color:var(--ink-600);transition:background .16s ease,color .16s ease}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-700)}
.nav-link.is-active{color:var(--brand-700);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand-500)}
.nav-actions{display:flex;align-items:center;gap:14px}
.text-link{display:inline-flex;align-items:center;gap:4px;color:var(--brand-700);font-size:14px;font-weight:600}
.text-link span{transition:transform .16s ease}
.text-link:hover span{transform:translateX(4px)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.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)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:14px;font-weight:600;transition:transform .16s ease,box-shadow .16s ease,background .16s ease,color .16s ease;text-align:center}
.btn-primary{background:var(--grad);color:#F4FBF9;padding:13px 24px;box-shadow:inset 0 1px 0 rgba(255,255,255,.28),var(--shadow-1)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:inset 0 1px 0 rgba(255,255,255,.28),var(--shadow-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;border:1.5px solid var(--brand-500);color:var(--brand-700);padding:12px 22px}
.btn-ghost:hover{background:var(--brand-soft);transform:translateY(-2px)}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:12px}
.btn-lg{padding:16px 30px;font-size:17px}
.btn-white{background:#fff;color:var(--brand-900);padding:14px 26px;border-radius:14px;box-shadow:var(--shadow-1)}
.btn-white:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}

/* ============ 文章头部 ============ */
.crumbs{padding:26px 0 0;font-size:13px;color:var(--ink-400)}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumbs a{color:var(--ink-600)}
.crumbs a:hover{color:var(--brand-700)}
.crumbs li::after{content:"/";margin-left:8px;color:var(--line)}
.crumbs li:last-child::after{content:""}
.crumbs .current{color:var(--ink-400);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-block;vertical-align:bottom}
.article-head{padding:22px 0 34px;border-bottom:1px solid var(--line)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1.6}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.85}
.badge-brand{background:var(--brand-soft);color:var(--brand-700)}
.badge-accent{background:var(--accent-100);color:var(--accent-600)}
.article-head h1{margin:16px 0 0;font-size:34px;line-height:1.35;font-weight:700;letter-spacing:-.2px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px;font-size:13px;color:var(--ink-400)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--line)}
.meta-right{margin-left:auto;display:flex;align-items:center;gap:8px}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:7px 13px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;font-size:13px;color:var(--ink-600);transition:all .16s ease}
.share-btn:hover{border-color:var(--brand-300);color:var(--brand-700);background:var(--brand-soft)}

/* ============ 正文布局 ============ */
.article-shell{padding:44px 0 20px}
.article-layout{display:grid;grid-template-columns:minmax(0,780px) 300px;gap:48px;align-items:start}
.cover-figure{margin:0 0 34px;border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-1)}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-content{font-size:17px;line-height:1.9;color:#22322E;overflow-wrap:break-word}
.article-content p{margin:0 0 22px}
.article-content h2{position:relative;margin:44px 0 20px;padding-left:14px;font-size:24px;line-height:1.4;font-weight:700;color:var(--brand-900)}
.article-content h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:6px;border-radius:3px;background:var(--grad)}
.article-content h3{margin:32px 0 14px;font-size:20px;font-weight:700;color:var(--brand-900)}
.article-content ul,.article-content ol{margin:0 0 22px;padding-left:6px}
.article-content ul li,.article-content ol li{position:relative;padding-left:20px;margin-bottom:10px;line-height:1.8}
.article-content ul li::before{content:"";position:absolute;left:2px;top:.68em;width:7px;height:7px;border-radius:50%;background:var(--brand-500)}
.article-content ol{counter-reset:li}
.article-content ol li::before{counter-increment:li;content:counter(li);position:absolute;left:0;top:.28em;width:16px;height:16px;border-radius:6px;background:var(--brand-soft);color:var(--brand-700);font-size:11px;font-weight:700;display:grid;place-items:center}
.article-content blockquote{margin:26px 0;padding:18px 24px;border-left:4px solid var(--accent-500);background:#FDF7EF;border-radius:0 12px 12px 0;color:#4A3A25}
.article-content img{border-radius:16px;margin:26px 0;box-shadow:var(--shadow-1)}
.article-content a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--accent-600)}
.article-content table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;border-radius:12px;overflow:hidden;box-shadow:var(--shadow-1)}
.article-content thead th{background:var(--brand-soft);color:var(--brand-700);text-align:left;padding:12px 14px;font-weight:600}
.article-content tbody td{padding:12px 14px;border-top:1px solid var(--line);background:#fff}
.article-content tbody tr:nth-child(even) td{background:#FBFAF6}
.article-content figure{margin:26px 0}
.article-content figcaption{margin-top:10px;font-size:13px;color:var(--ink-400);text-align:center}

/* 空态 */
.empty-state{padding:56px 28px;text-align:center;background:#fff;border:1px dashed var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-1)}
.empty-icon{width:64px;height:64px;margin:0 auto 18px;border-radius:20px;background:var(--brand-soft);color:var(--brand-700);display:grid;place-items:center;font-size:26px;font-weight:700}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--ink-600);margin-bottom:22px}

/* ============ 侧栏 ============ */
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px;box-shadow:var(--shadow-1)}
.side-card h3{font-size:15px;font-weight:700;color:var(--brand-900);display:flex;align-items:center;gap:8px;margin-bottom:14px}
.side-card h3::before{content:"";width:4px;height:15px;border-radius:2px;background:var(--grad)}
.toc-list li{margin-bottom:2px}
.toc-list a{display:block;padding:8px 10px;border-radius:10px;font-size:14px;color:var(--ink-600);line-height:1.5;transition:all .16s ease}
.toc-list a:hover{background:var(--brand-soft);color:var(--brand-700)}
.toc-list a.is-current{background:var(--brand-soft);color:var(--brand-700);font-weight:600}
.hot-list li+li{border-top:1px solid var(--line)}
.hot-list a{display:flex;align-items:flex-start;gap:10px;padding:12px 0;font-size:14px;line-height:1.6;color:var(--ink-600);transition:color .16s ease}
.hot-list a:hover{color:var(--brand-700)}
.hot-list .dot{flex:0 0 auto;width:8px;height:8px;border-radius:50%;background:var(--brand-300);margin-top:7px}
.hot-list .time{display:block;margin-top:4px;font-size:12px;color:var(--ink-400)}
.side-cta{background:var(--grad);color:#EAF7F3;border:0;text-align:left}
.side-cta h3{color:#fff}
.side-cta h3::before{background:rgba(255,255,255,.6)}
.side-cta p{font-size:14px;line-height:1.7;color:#D6EBE5;margin-bottom:16px}
.side-cta .btn-white{width:100%;padding:11px 18px;font-size:14px}

/* ============ 文末 ============ */
.article-foot{margin-top:46px;padding-top:30px;border-top:1px solid var(--line)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.tag-pill{padding:7px 14px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);font-size:13px;color:var(--ink-600);transition:all .16s ease}
.tag-pill:hover{border-color:var(--brand-300);color:var(--brand-700);background:var(--brand-soft)}
.nextprev{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:38px}
.nextprev a{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:20px;box-shadow:var(--shadow-1);transition:all .16s ease}
.nextprev a:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-300)}
.nextprev .dir{font-size:13px;color:var(--brand-500);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.nextprev strong{display:block;margin-top:8px;font-size:16px;color:var(--brand-900);line-height:1.5}
.nextprev p{font-size:13px;color:var(--ink-400);margin-top:6px}
.nextprev .right{text-align:right}

.sec-head{margin-bottom:24px}
.sec-head h2{font-size:26px;font-weight:700;color:var(--brand-900);letter-spacing:-.2px}
.sec-head p{margin-top:8px;color:var(--ink-600);font-size:15px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-1);transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-300)}
.card-media{position:relative;overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-media .badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.92);color:var(--brand-700);backdrop-filter:blur(4px)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:17px;line-height:1.55;font-weight:700;color:var(--brand-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{margin-top:10px;font-size:14px;color:var(--ink-600);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;padding-top:16px;font-size:12px;color:var(--ink-400);display:flex;align-items:center;gap:8px}
.card-more{margin-top:12px;font-size:13px;color:var(--brand-700);font-weight:600;display:inline-flex;align-items:center;gap:4px}
.card:hover .card-more span{transform:translateX(4px)}
.card-more span{transition:transform .16s ease}
.back-row{margin:34px 0 0}

/* ============ 深色区块 / CTA ============ */
.dark-block{position:relative;margin-top:64px;border-radius:var(--r-lg);overflow:hidden;background:var(--brand-900);color:#EAF7F3}
.dark-block .bg{position:absolute;inset:0;background-image:url(/assets/images/backpic/back-1.png);background-size:cover;background-position:center;opacity:.22}
.dark-block .veil{position:absolute;inset:0;background:var(--grad);opacity:.86}
.dark-inner{position:relative;padding:56px;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.dark-inner h2{font-size:30px;line-height:1.35;color:#fff;font-weight:700}
.dark-inner p{margin-top:14px;color:#CFE7E0;font-size:15.5px}
.dark-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:var(--r-pill);background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);font-size:13px;color:#EAF7F3}
.dark-actions{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.dark-actions .note{font-size:13px;color:#BFDDD5}

/* ============ FAQ ============ */
.faq-section{margin-top:72px}
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-1);overflow:hidden}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:19px 24px;min-height:56px;font-size:17px;font-weight:600;color:var(--brand-900);cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .ico{flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--brand-soft);color:var(--brand-700);display:grid;place-items:center;font-size:16px;font-weight:700;transition:transform .18s ease}
.faq-item[open] summary .ico{transform:rotate(180deg)}
.faq-item .answer{padding:0 24px 22px;border-top:1px solid var(--line);margin-top:0;padding-top:18px;color:var(--ink-600);font-size:15.5px;line-height:1.85}

/* ============ 页脚 ============ */
.site-footer{margin-top:96px;background:var(--brand-900);color:#CFE3DD;position:relative}
.footer-bar{height:4px;background:var(--grad)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding:56px 24px 40px}
.footer-brand .logo{color:#F1FAF7}
.footer-brand .logo-mark{background:rgba(255,255,255,.14)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:#A9C6BF;max-width:320px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.social-box{display:inline-flex;align-items:center;justify-content:center;padding:8px 14px;border-radius:12px;border:1px solid rgba(255,255,255,.18);font-size:13px;color:#D8EDE7}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14px;color:#A9C6BF;transition:color .16s ease}
.footer-col a:hover{color:#fff}
.ft-plain{font-size:14px;color:#A9C6BF}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12)}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;font-size:13px;color:#95B3AC}
.footer-domain{color:#7FA79E;letter-spacing:.4px}

/* ============ 移动端抽屉 ============ */
.drawer-mask{position:fixed;inset:0;background:rgba(12,47,41,.45);opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;z-index:90}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);background:#fff;z-index:100;transform:translateX(102%);transition:transform .26s ease;display:flex;flex-direction:column;padding:22px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:38px;height:38px;border-radius:12px;border:1px solid var(--line);font-size:18px;color:var(--brand-900)}
.drawer-list li{margin-bottom:6px}
.drawer-list a{display:block;padding:13px 14px;border-radius:12px;font-size:15px;color:var(--ink-600);background:#FBFAF6}
.drawer-list a:hover{background:var(--brand-soft);color:var(--brand-700)}
.drawer-foot{margin-top:auto;padding-top:22px;display:flex;flex-direction:column;gap:12px}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .28s ease-out,transform .28s ease-out}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:36px}
}
@media (max-width:1023px){
  .nav-links,.nav-actions .text-link{display:none}
  .nav-toggle{display:flex}
  .topbar-tip{display:none}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .sidebar{position:static;top:auto;order:2}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .dark-inner{grid-template-columns:1fr;padding:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .article-head h1{font-size:27px}
  .article-content{font-size:16.5px}
  .article-content h2{font-size:21px;margin-top:36px}
  .article-content table{display:block;overflow-x:auto;white-space:nowrap}
  .nextprev{grid-template-columns:1fr}
  .nextprev .right{text-align:left}
  .card-grid{grid-template-columns:1fr}
  .meta-right{margin-left:0;width:100%}
  .dark-inner h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr;padding:40px 20px 30px}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:519px){
  .container{padding:0 16px}
  .logo-text{font-size:15px;max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .article-head h1{font-size:23px}
  .topbar-actions{gap:12px}
  .share-btn span{display:none}
  .dark-inner{padding:28px 22px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --brand-900:#0C2F29;
  --brand-700:#14544A;
  --brand-500:#1E8A76;
  --brand-300:#6FC3B1;
  --brand-50:#EAF5F2;
  --accent-600:#D9772B;
  --accent-500:#F0932B;
  --accent-100:#FDECD9;
  --ink-900:#14201D;
  --ink-600:#4A5A56;
  --ink-400:#7C8B87;
  --line:#E4E0D6;
  --paper:#F7F4EE;
  --card:#FFFFFF;
  --grad:linear-gradient(135deg,#0C2F29 0%,#1E8A76 62%,#6FC3B1 100%);
  --grad-soft:linear-gradient(135deg,rgba(12,47,41,.06) 0%,rgba(30,138,118,.12) 60%,rgba(111,195,177,.18) 100%);
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:12px;
  --shadow-1:0 1px 2px rgba(12,47,41,.06),0 8px 24px -16px rgba(12,47,41,.18);
  --shadow-2:0 2px 4px rgba(12,47,41,.06),0 24px 48px -24px rgba(12,47,41,.28);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .16s ease,border-color .16s ease,background-color .16s ease;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--accent-500);
  outline-offset:2px;
  border-radius:6px;
}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink-900);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;}
.topbar{background:var(--brand-900);color:rgba(247,244,238,.86);font-size:13px;}
.topbar-inner{display:flex;align-items:center;gap:20px;height:38px;}
.topbar-domain{font-weight:600;letter-spacing:.02em;color:#fff;}
.topbar-tip{flex:1;text-align:center;color:rgba(247,244,238,.68);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-actions{display:flex;align-items:center;gap:18px;}
.topbar-link{color:rgba(247,244,238,.86);font-weight:500;display:inline-flex;align-items:center;gap:6px;}
.topbar-link:hover{color:var(--brand-300);}
.topbar-link span{transition:transform .16s ease;}
.topbar-link:hover span{transform:translateX(4px);}
.mainnav{
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled .mainnav{box-shadow:var(--shadow-1);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height .2s ease;}
.site-header.is-scrolled .nav-inner{height:60px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--brand-900);letter-spacing:-.01em;}
.logo-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad);
  color:#fff;display:grid;place-items:center;font-size:15px;font-weight:700;
  box-shadow:0 6px 16px -8px rgba(12,47,41,.6);
}
.logo-text{white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:72px;padding:0 14px;
  font-size:15px;color:var(--ink-600);font-weight:500;transition:height .2s ease,color .16s ease;
}
.site-header.is-scrolled .nav-link{height:60px;}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:14px;height:2px;border-radius:2px;
  background:var(--brand-500);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav-link:hover{color:var(--brand-700);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-700);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:16px;}
.text-link{color:var(--brand-700);font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.text-link span{transition:transform .16s ease;}
.text-link:hover{color:var(--accent-600);}
.text-link:hover span{transform:translateX(4px);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1.5px solid var(--line);
  background:#fff;padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);margin:3px auto;border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}

/* drawer */
.drawer-mask{position:fixed;inset:0;background:rgba(12,47,41,.44);opacity:0;visibility:hidden;transition:opacity .22s ease;z-index:90;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,86vw);background:#fff;z-index:95;
  transform:translateX(102%);transition:transform .26s ease;padding:22px 22px 32px;overflow-y:auto;
  box-shadow:-24px 0 48px -32px rgba(12,47,41,.5);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1.5px solid var(--line);background:#fff;font-size:18px;color:var(--ink-600);line-height:1;}
.drawer-group-title{font-size:12px;font-weight:700;color:var(--ink-400);letter-spacing:.08em;margin:18px 0 8px;}
.drawer a.drawer-link{display:block;padding:13px 14px;border-radius:12px;font-size:15px;color:var(--ink-600);font-weight:500;}
.drawer a.drawer-link:hover{background:var(--brand-50);color:var(--brand-700);}
.drawer a.drawer-link.is-active{background:var(--brand-50);color:var(--brand-700);font-weight:700;}
.drawer-cta{margin-top:22px;display:grid;gap:10px;}
.drawer-contact{margin-top:18px;font-size:13px;color:var(--ink-400);line-height:1.9;border-top:1px solid var(--line);padding-top:16px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:14px;border:1.5px solid transparent;font-weight:700;font-size:15px;
  padding:0 22px;height:48px;transition:transform .16s ease,box-shadow .16s ease,background-color .16s ease,color .16s ease,border-color .16s ease;
  white-space:nowrap;
}
.btn-sm{height:40px;font-size:14px;padding:0 18px;border-radius:12px;}
.btn-primary{
  background:var(--grad);color:#fff;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 10px 24px -16px rgba(12,47,41,.7);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:inset 0 1px 0 rgba(255,255,255,.3),var(--shadow-2);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;border-color:var(--brand-500);color:var(--brand-700);}
.btn-ghost:hover{background:var(--brand-50);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn[disabled],.btn.is-disabled{opacity:.6;pointer-events:none;}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
}
.badge i{width:6px;height:6px;border-radius:50%;background:currentColor;display:block;flex:none;}
.badge-amber{background:var(--accent-100);color:var(--accent-600);}
.badge-green{background:var(--brand-50);color:var(--brand-700);}
.badge-dark{background:var(--brand-900);color:#F7F4EE;}

/* ---------- hero (light) ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(120% 100% at 88% 0%,rgba(111,195,177,.22) 0%,rgba(111,195,177,0) 60%),
    linear-gradient(180deg,#FFFFFF 0%,var(--paper) 100%);
  border-bottom:1px solid var(--line);
  padding:56px 0 52px;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(12,47,41,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(12,47,41,.05) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.65),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.65),transparent 78%);
}
.page-hero .container{position:relative;z-index:1;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-400);margin-bottom:20px;flex-wrap:wrap;}
.crumb a{color:var(--ink-400);}
.crumb a:hover{color:var(--brand-700);}
.crumb .sep{color:#C9C3B6;}
.crumb .current{color:var(--ink-600);font-weight:600;}
.hero-tag{margin-bottom:16px;}
.page-hero h1{font-size:40px;line-height:1.25;max-width:820px;letter-spacing:-.02em;}
.page-hero .hero-lead{margin-top:18px;font-size:17px;color:var(--ink-600);max-width:720px;line-height:1.85;}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-badges .badge{height:32px;padding:0 14px;font-size:13px;}

/* ---------- anchor layout ---------- */
.guide-wrap{padding:64px 0 96px;}
.guide-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:56px;align-items:start;}
.anchor-nav{position:sticky;top:104px;}
.anchor-nav-title{font-size:12px;font-weight:700;color:var(--ink-400);letter-spacing:.1em;margin-bottom:14px;}
.anchor-nav ul{display:grid;gap:4px;border-left:2px solid var(--line);}
.anchor-link{
  display:block;padding:10px 12px 10px 16px;font-size:14px;color:var(--ink-600);font-weight:500;
  border-left:2px solid transparent;margin-left:-2px;border-radius:0 10px 10px 0;
}
.anchor-link:hover{color:var(--brand-700);background:var(--brand-50);}
.anchor-link.is-active{color:var(--brand-700);font-weight:700;border-left-color:var(--brand-500);background:var(--brand-50);}

.guide-section{scroll-margin-top:112px;padding-bottom:64px;border-bottom:1px solid var(--line);margin-bottom:64px;}
.guide-section:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0;}
.section-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;color:var(--accent-600);letter-spacing:.1em;margin-bottom:14px;}
.section-eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--accent-500);}
.guide-section h2{font-size:30px;line-height:1.32;letter-spacing:-.02em;max-width:760px;}
.guide-section h3{font-size:21px;margin-bottom:12px;}
.section-lead{margin-top:16px;font-size:16px;color:var(--ink-600);max-width:800px;line-height:1.9;}
.guide-section p + p{margin-top:18px;}

/* preparation cards */
.prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px;}
.prep-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);padding:26px;box-shadow:var(--shadow-1);transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;}
.prep-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-300);}
.prep-icon{width:48px;height:48px;border-radius:14px;background:var(--brand-50);color:var(--brand-700);display:grid;place-items:center;font-size:20px;font-weight:700;margin-bottom:18px;}
.prep-card h3{font-size:17px;margin-bottom:10px;}
.prep-card p{font-size:14.5px;color:var(--ink-600);line-height:1.85;}

.check-list{margin-top:22px;display:grid;gap:12px;}
.check-list li{position:relative;padding-left:30px;font-size:15px;color:var(--ink-600);line-height:1.85;}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:16px;height:16px;border-radius:50%;
  background:var(--brand-50);border:1.5px solid var(--brand-300);
}
.check-list li::after{
  content:"";position:absolute;left:5px;top:13px;width:6px;height:6px;border-radius:50%;background:var(--brand-500);
}

/* alternating blocks */
.alt-row{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;margin-top:36px;}
.alt-row + .alt-row{margin-top:48px;}
.alt-media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-2);position:relative;background:var(--brand-900);}
.alt-media img{width:100%;height:100%;aspect-ratio:16/11;object-fit:cover;}
.alt-media .media-badge{position:absolute;left:18px;top:18px;}
.alt-row--reverse .alt-media{order:2;}
.alt-body p{font-size:15.5px;color:var(--ink-600);line-height:1.9;}
.alt-body .check-list li{font-size:14.5px;}

/* compare */
.compare-head{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin:28px 0 8px;}
.compare{
  margin-top:18px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.compare-row{display:grid;grid-template-columns:1.1fr 1fr 1.3fr;gap:18px;align-items:center;padding:20px 26px;border-bottom:1px solid var(--line);}
.compare-row:last-child{border-bottom:0;}
.compare-row.head{background:var(--paper);font-size:13px;font-weight:700;color:var(--ink-400);letter-spacing:.04em;padding:14px 26px;}
.compare-name{font-size:14.5px;font-weight:600;color:var(--ink-900);}
.compare-old{font-size:14.5px;color:var(--ink-400);}
.compare-new{display:grid;gap:8px;}
.compare-val{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--brand-700);}
.compare-val .arrow{color:var(--accent-600);font-size:13px;}
.bar{height:8px;border-radius:999px;background:var(--line);overflow:hidden;}
.bar-fill{
  height:100%;width:0;border-radius:999px;background:var(--grad);
  transition:width .9s cubic-bezier(.22,.61,.36,1);
}
.is-inview .bar-fill{width:var(--w,60%);}
.compare-note{margin-top:16px;font-size:13px;color:var(--ink-400);}

/* FAQ */
.faq-list{margin-top:30px;max-width:860px;display:grid;gap:14px;}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-1);overflow:hidden;transition:border-color .16s ease,box-shadow .16s ease;}
.faq-item[open]{border-color:var(--brand-300);box-shadow:var(--shadow-2);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 26px;font-size:17px;font-weight:700;color:var(--ink-900);min-height:56px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:none;width:28px;height:28px;border-radius:9px;background:var(--brand-50);color:var(--brand-700);
  display:grid;place-items:center;font-size:16px;font-weight:700;transition:transform .18s ease,background-color .18s ease,color .18s ease;
}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--brand-500);color:#fff;}
.faq-body{padding:0 26px 22px;border-top:1px solid var(--line);margin-top:0;padding-top:18px;font-size:15px;color:var(--ink-600);line-height:1.9;}

/* CTA band */
.cta-band{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;background:var(--grad);
  padding:52px 48px;color:#F7F4EE;box-shadow:var(--shadow-2);
}
.cta-band::after{
  content:"";position:absolute;inset:0;opacity:.28;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.16) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:44px 44px;
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1.2fr;gap:40px;align-items:center;}
.cta-band h2{font-size:28px;color:#fff;line-height:1.35;}
.cta-band p{margin-top:14px;font-size:15px;color:rgba(247,244,238,.86);line-height:1.9;}
.cta-points{margin-top:22px;display:grid;gap:10px;}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(247,244,238,.9);}
.cta-points li span.dot{width:18px;height:18px;border-radius:6px;background:rgba(255,255,255,.18);display:grid;place-items:center;font-size:11px;color:#fff;flex:none;}
.mini-form{
  background:#fff;border-radius:var(--radius-md);padding:22px;box-shadow:var(--shadow-2);
  display:grid;grid-template-columns:1fr 1fr auto;gap:14px;align-items:end;
}
.field{display:grid;gap:8px;}
.field label{font-size:13px;font-weight:600;color:var(--ink-600);}
.field input,.field select,.field textarea{
  height:48px;border-radius:12px;border:1.5px solid var(--line);background:#fff;
  padding:0 14px;transition:border-color .16s ease,box-shadow .16s ease;
}
.field textarea{height:110px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,138,118,.16);
}
.field.has-error input{border-color:#D9603B;box-shadow:0 0 0 3px rgba(217,96,59,.14);}
.field-error{font-size:12px;color:#C3522E;display:none;}
.field.has-error .field-error{display:block;}
.form-success{
  display:none;align-items:center;gap:10px;font-size:14px;font-weight:600;color:var(--brand-700);
  background:var(--brand-50);border-radius:12px;padding:12px 14px;
}
.form-success .tick{width:22px;height:22px;border-radius:50%;background:var(--brand-500);color:#fff;display:grid;place-items:center;font-size:12px;}
.mini-form.is-done .form-success{display:flex;}
.mini-form.is-done .form-fieldset{display:none;}
.form-note{font-size:12px;color:rgba(247,244,238,.8);margin-top:14px;}

/* reveal animation */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s ease-out,transform .32s ease-out;}
.reveal.is-inview{opacity:1;transform:none;}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(247,244,238,.78);margin-top:96px;}
.footer-bar{height:4px;background:var(--grad);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding:64px 24px 48px;}
.site-footer .logo{color:#fff;}
.site-footer .logo-text{color:#fff;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(247,244,238,.66);max-width:320px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.social-box{
  display:inline-flex;align-items:center;justify-content:center;height:38px;padding:0 16px;border-radius:12px;
  border:1px solid rgba(247,244,238,.2);font-size:13px;color:rgba(247,244,238,.8);
}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:12px;}
.footer-col a,.ft-plain{font-size:14px;color:rgba(247,244,238,.7);}
.footer-col a:hover{color:var(--brand-300);}
.footer-bottom{border-top:1px solid rgba(247,244,238,.12);}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;font-size:13px;color:rgba(247,244,238,.6);flex-wrap:wrap;}
.footer-domain{letter-spacing:.04em;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .guide-layout{gap:40px;}
}
@media (max-width:1023px){
  .nav-links,.nav-actions .btn,.nav-actions .text-link{display:none;}
  .nav-toggle{display:grid;}
  .guide-layout{grid-template-columns:1fr;gap:26px;}
  .anchor-nav{
    position:sticky;top:76px;z-index:30;background:var(--paper);padding:10px 0 12px;
    margin:0 -24px;padding-left:24px;padding-right:24px;border-bottom:1px solid var(--line);
  }
  .anchor-nav-title{display:none;}
  .anchor-nav ul{display:flex;gap:10px;overflow-x:auto;border-left:0;padding-bottom:4px;scrollbar-width:none;}
  .anchor-nav ul::-webkit-scrollbar{display:none;}
  .anchor-link{
    flex:none;border-radius:999px;border:1.5px solid var(--line);background:#fff;
    padding:9px 16px;margin-left:0;white-space:nowrap;
  }
  .anchor-link.is-active{border-color:var(--brand-500);background:var(--brand-50);}
  .prep-grid{grid-template-columns:1fr 1fr;}
  .alt-row{grid-template-columns:1fr;gap:24px;}
  .alt-row--reverse .alt-media{order:0;}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 24px 36px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .topbar-tip{display:none;}
  .topbar-inner{gap:12px;justify-content:space-between;}
  .page-hero{padding:40px 0 40px;}
  .page-hero h1{font-size:28px;}
  .page-hero .hero-lead{font-size:15.5px;}
  .guide-wrap{padding:44px 0 64px;}
  .guide-section h2{font-size:24px;}
  .guide-section h3{font-size:19px;}
  .prep-grid{grid-template-columns:1fr;}
  .compare-row{grid-template-columns:1fr;gap:10px;padding:18px 20px;}
  .compare-row.head{display:none;}
  .compare-old::before{content:"现在：";font-size:12px;color:var(--ink-400);}
  .cta-band{padding:34px 22px;border-radius:var(--radius-md);}
  .cta-band h2{font-size:22px;}
  .mini-form{grid-template-columns:1fr;}
  .mini-form .btn{width:100%;}
  .site-footer{margin-top:64px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom-inner{padding:18px 20px;}
}
@media (max-width:479px){
  .container{padding:0 16px;}
  .page-hero h1{font-size:25px;}
  .hero-badges .badge{font-size:12px;padding:0 11px;}
  .faq-item summary{padding:16px 18px;font-size:15.5px;}
  .faq-body{padding:0 18px 18px;padding-top:16px;}
  .prep-card{padding:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
  .bar-fill{width:var(--w,60%)!important;}
}

/* roulang page: category2 */
/* ===================== 设计变量 ===================== */
:root{
  --brand-900:#0C2F29;
  --brand-700:#14544A;
  --brand-500:#1E8A76;
  --brand-300:#6FC3B1;
  --accent-600:#D9772B;
  --accent-500:#F0932B;
  --accent-100:#FDECD9;
  --ink-900:#14201D;
  --ink-600:#4A5A56;
  --ink-400:#7C8B87;
  --line:#E4E0D6;
  --paper:#F7F4EE;
  --card:#FFFFFF;
  --mint:#EAF5F2;
  --grad-brand:linear-gradient(135deg,#0C2F29 0%,#1E8A76 62%,#6FC3B1 100%);
  --grad-soft:linear-gradient(135deg,rgba(12,47,41,.06) 0%,rgba(30,138,118,.10) 100%);
  --r-xl:28px;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,47,41,.06),0 8px 24px -16px rgba(12,47,41,.18);
  --sh-2:0 2px 4px rgba(12,47,41,.06),0 24px 48px -24px rgba(12,47,41,.28);
  --container:1240px;
  --section:104px;
  --font: "HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}

/* ===================== reset / base ===================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-700);text-decoration:none;transition:color .16s ease}
a:hover{color:var(--accent-600)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit}
h1,h2,h3,h4{line-height:1.3;letter-spacing:-.01em}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--section) 0}
.section-tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,3vw,32px);font-weight:700;color:var(--brand-900)}
.section-head .sub{margin-top:10px;color:var(--ink-600);font-size:15px;max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--mint);color:var(--brand-700);
  font-size:12px;font-weight:600;letter-spacing:.04em;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-500)}

/* ===================== 顶部信息条 ===================== */
.topbar{
  background:var(--brand-900);
  color:#D8E9E5;
  font-size:13px;
  min-height:38px;
  display:flex;
  align-items:center;
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:18px}
.topbar-domain{font-weight:600;letter-spacing:.02em;color:#EAF5F2}
.topbar-tip{color:#9BBFB7;font-size:13px}
.topbar-actions{display:flex;align-items:center;gap:18px}
.topbar-link{color:#D8E9E5;font-size:13px}
.topbar-link span{display:inline-block;transition:transform .16s ease;margin-left:2px}
.topbar-link:hover{color:#fff}
.topbar-link:hover span{transform:translateX(3px)}

/* ===================== 主导航 ===================== */
.site-header{position:sticky;top:0;z-index:60}
.mainnav{
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled .mainnav{box-shadow:0 10px 30px -22px rgba(12,47,41,.45)}
.nav-inner{
  display:flex;align-items:center;gap:28px;
  height:72px;
  transition:height .22s ease;
}
.site-header.is-scrolled .nav-inner{height:60px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--brand-900);font-weight:700;letter-spacing:-.01em}
.logo:hover{color:var(--brand-900)}
.logo-mark{
  width:36px;height:36px;border-radius:11px;
  background:var(--grad-brand);
  color:#F7F4EE;font-size:16px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px -10px rgba(12,47,41,.6);
}
.logo-text{font-size:17px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;flex:1}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 14px;
  border-radius:var(--r-pill);
  font-size:15px;
  color:var(--ink-600);
  white-space:nowrap;
  transition:background .16s ease,color .16s ease;
}
.nav-link:hover{background:var(--mint);color:var(--brand-700)}
.nav-link.is-active{color:var(--brand-700);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
  border-radius:2px;background:var(--brand-500);
}
.nav-actions{display:flex;align-items:center;gap:16px;margin-left:auto}
.text-link{font-size:14px;font-weight:600;color:var(--brand-700);white-space:nowrap}
.text-link span{display:inline-block;transition:transform .16s ease}
.text-link:hover span{transform:translateX(4px)}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);
  background:#fff;border-radius:12px;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-900)}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:0 22px;height:48px;border-radius:14px;
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .16s ease,box-shadow .16s ease,background .16s ease,color .16s ease;
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:12px}
.btn-primary{
  background:var(--grad-brand);
  color:#F7F4EE;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.24),0 10px 22px -16px rgba(12,47,41,.8);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{background:#fff;border:1.5px solid var(--brand-500);color:var(--brand-700)}
.btn-secondary:hover{background:var(--mint);color:var(--brand-700);transform:translateY(-2px)}
.btn-ghost-light{background:rgba(255,255,255,.14);border:1.5px solid rgba(255,255,255,.5);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.24);color:#fff;transform:translateY(-2px)}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.6;pointer-events:none}

/* ===================== 数据徽章 / 标签 ===================== */
.data-badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 13px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1;
  background:var(--accent-100);color:#8A4A12;
  font-variant-numeric:tabular-nums;
}
.data-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--accent-600)}
.data-badge .up{color:#B4530F;font-size:11px}
.data-badge.is-ghost{
  background:rgba(255,255,255,.14);
  color:#F2FBF8;
  border:1px solid rgba(255,255,255,.28);
}
.data-badge.is-ghost .dot{background:var(--brand-300)}
.badge-row{display:flex;flex-wrap:wrap;gap:10px}

.tag-strip{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:22px 0 0;
  border-bottom:1px solid var(--line);
  padding-bottom:26px;
}
.tag-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  color:var(--ink-600);font-size:13px;font-weight:500;
}
.tag-pill::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-300)}

/* ===================== 分类页2 Hero ===================== */
.cat-hero{
  position:relative;
  color:#fff;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(12,47,41,.95) 0%,rgba(20,84,74,.88) 46%,rgba(30,138,118,.74) 100%);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;opacity:.28;
  background-image:
    linear-gradient(rgba(255,255,255,.10) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.10) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(120deg,rgba(0,0,0,.9),rgba(0,0,0,0));
  -webkit-mask-image:linear-gradient(120deg,rgba(0,0,0,.9),rgba(0,0,0,0));
}
.cat-hero-inner{position:relative;z-index:2;padding:76px 0 88px;max-width:820px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:20px}
.crumb a{color:rgba(255,255,255,.9)}
.crumb a:hover{color:#fff}
.crumb .sep{opacity:.6}
.crumb .current{color:#fff;font-weight:600}
.cat-hero h1{
  font-size:clamp(30px,4.6vw,46px);
  font-weight:700;
  letter-spacing:-.02em;
  margin-bottom:18px;
}
.cat-hero .hero-sub{
  font-size:17px;line-height:1.85;color:rgba(255,255,255,.9);
  max-width:660px;margin-bottom:30px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}

/* ===================== 交错大卡 ===================== */
.stagger-wrap{display:grid;grid-template-columns:repeat(12,1fr)}
.stagger-card{
  grid-column:1 / span 10;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
  margin-bottom:56px;
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.stagger-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--brand-300)}
.stagger-card.is-right{grid-column:3 / span 10}
.stagger-card:last-child{margin-bottom:0}
.stagger-inner{display:grid;grid-template-columns:1.05fr 1fr;align-items:stretch}
.stagger-card.is-flip .stagger-inner{grid-template-columns:1fr 1.05fr}
.stagger-card.is-flip .stagger-media{order:2}
.stagger-media{position:relative;min-height:340px;overflow:hidden;background:var(--brand-900)}
.stagger-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.media-float{
  position:absolute;left:20px;bottom:20px;z-index:3;
}
.stagger-body{padding:36px 38px;display:flex;flex-direction:column;justify-content:center}
.stagger-index{
  font-size:13px;font-weight:700;letter-spacing:.16em;
  color:var(--brand-500);margin-bottom:14px;font-variant-numeric:tabular-nums;
}
.stagger-body h3{font-size:clamp(20px,2.2vw,24px);font-weight:700;color:var(--brand-900);margin-bottom:14px}
.stagger-body p{color:var(--ink-600);font-size:15.5px;line-height:1.85;margin-bottom:20px}
.stagger-list{margin-bottom:22px;display:grid;gap:10px}
.stagger-list li{position:relative;padding-left:20px;font-size:14.5px;color:var(--ink-600)}
.stagger-list li::before{
  content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:50%;
  background:var(--brand-500);
}
.stagger-foot{display:flex;flex-wrap:wrap;align-items:center;gap:12px;justify-content:space-between}
.link-arrow{font-size:14px;font-weight:600;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px}
.link-arrow span{transition:transform .16s ease}
.link-arrow:hover span{transform:translateX(4px)}

/* ===================== 指标看板（沉浸区块） ===================== */
.metric-band{
  position:relative;
  background-image:linear-gradient(135deg,rgba(12,47,41,.96) 0%,rgba(20,84,74,.94) 55%,rgba(30,138,118,.88) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  border-radius:var(--r-xl);
  padding:56px 44px;
  color:#fff;
  overflow:hidden;
}
.metric-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(111,195,177,.35),rgba(111,195,177,0) 70%);
}
.metric-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;margin-bottom:12px;position:relative;z-index:2}
.metric-band .band-sub{color:rgba(255,255,255,.82);font-size:15px;max-width:620px;margin-bottom:40px;position:relative;z-index:2}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;z-index:2}
.metric-cell{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-md);
  padding:24px 22px;
}
.metric-cell .num{
  font-size:clamp(30px,3.4vw,44px);font-weight:700;line-height:1.1;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.metric-cell .unit{font-size:14px;font-weight:600;margin-left:4px;color:var(--brand-300)}
.metric-cell .label{font-size:13px;color:rgba(255,255,255,.78);margin-top:10px}
.metric-bar{height:4px;border-radius:4px;background:rgba(255,255,255,.18);margin-top:16px;overflow:hidden}
.metric-bar i{display:block;height:100%;border-radius:4px;background:linear-gradient(90deg,var(--brand-300),var(--accent-500))}

/* ===================== 流程步骤 ===================== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px 26px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-300)}
.step-no{
  width:44px;height:44px;border-radius:13px;background:var(--mint);
  color:var(--brand-700);font-weight:700;font-size:17px;
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
  font-variant-numeric:tabular-nums;
}
.step h4{font-size:17px;font-weight:700;color:var(--brand-900);margin-bottom:10px}
.step p{font-size:14.5px;color:var(--ink-600);line-height:1.8}

/* ===================== FAQ ===================== */
.faq-list{max-width:860px;margin:0 auto;display:grid;gap:14px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item:hover{border-color:var(--brand-300)}
.faq-item.is-open{box-shadow:var(--sh-2);border-color:var(--brand-300)}
.faq-q{
  width:100%;background:none;border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:18px 24px;text-align:left;
  font-size:17px;font-weight:600;color:var(--brand-900);
}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  background:var(--mint);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;line-height:1;transition:transform .18s ease,background .18s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--accent-100);color:var(--accent-600)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{
  padding:18px 24px 22px;border-top:1px solid var(--line);
  color:var(--ink-600);font-size:15px;line-height:1.85;
}

/* ===================== 转化表单 ===================== */
.cta-section{padding:0 0 var(--section)}
.cta-band{
  position:relative;
  background-image:linear-gradient(135deg,rgba(12,47,41,.97) 0%,rgba(20,84,74,.95) 55%,rgba(30,138,118,.9) 100%);
  border-radius:var(--r-xl);
  padding:64px 56px;
  color:#fff;
  overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;left:-80px;bottom:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,147,43,.28),rgba(240,147,43,0) 70%);
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.cta-copy h2{font-size:clamp(24px,2.8vw,32px);font-weight:700;margin-bottom:14px}
.cta-copy .cta-sub{color:rgba(255,255,255,.86);font-size:15.5px;margin-bottom:30px;max-width:420px}
.trust-list{display:grid;gap:16px;margin-bottom:30px}
.trust-list li{display:flex;align-items:flex-start;gap:12px;font-size:14.5px;color:rgba(255,255,255,.9)}
.trust-ico{
  flex:0 0 auto;width:30px;height:30px;border-radius:9px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;color:var(--brand-300);
}
.contact-strip{
  display:flex;flex-wrap:wrap;gap:18px;
  padding-top:22px;border-top:1px solid rgba(255,255,255,.18);
  font-size:13.5px;color:rgba(255,255,255,.85);
}
.contact-strip strong{display:block;color:#fff;font-size:15px;font-weight:600;margin-top:2px}
.form-card{
  background:#fff;border-radius:var(--r-lg);
  box-shadow:0 2px 4px rgba(12,47,41,.08),0 30px 60px -30px rgba(0,0,0,.55);
  padding:34px 32px;color:var(--ink-900);
}
.form-card h3{font-size:19px;font-weight:700;color:var(--brand-900);margin-bottom:6px}
.form-card .form-tip{font-size:13px;color:var(--ink-400);margin-bottom:24px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-600);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;font-family:inherit;font-size:15px;color:var(--ink-900);
  background:#FDFCFA;border:1.5px solid var(--line);border-radius:var(--r-sm);
  padding:0 14px;height:48px;transition:border-color .16s ease,box-shadow .16s ease,background .16s ease;
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;line-height:1.7;resize:vertical}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink-400) 50%),linear-gradient(135deg,var(--ink-400) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:#fff;border-color:var(--brand-500);
  box-shadow:0 0 0 3px rgba(30,138,118,.16);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{
  border-color:#D9552B;box-shadow:0 0 0 3px rgba(217,85,43,.12);
}
.field .err{display:none;margin-top:7px;font-size:12px;color:#C0431C}
.field.has-error .err{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;margin:6px 0 22px}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand-500)}
.check-row label{font-size:13px;color:var(--ink-600);line-height:1.65}
.form-success{
  display:none;text-align:center;padding:28px 8px;
}
.form-success.is-visible{display:block}
.success-badge{
  width:60px;height:60px;border-radius:50%;margin:0 auto 18px;
  background:var(--mint);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;font-size:26px;font-weight:700;
}
.form-success h4{font-size:18px;color:var(--brand-900);margin-bottom:8px}
.form-success p{font-size:14px;color:var(--ink-600)}

/* ===================== 页脚 ===================== */
.site-footer{background:var(--brand-900);color:#C9DED9;margin-top:0;position:relative}
.footer-bar{height:4px;background:var(--grad-brand)}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding:64px 24px 46px;
}
.site-footer .logo{color:#F2FBF8}
.site-footer .logo-text{color:#F2FBF8}
.footer-brand p{font-size:14px;line-height:1.85;color:#9BBFB7;margin:18px 0 20px;max-width:320px}
.footer-social{display:flex;gap:12px}
.social-box{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:78px;height:34px;padding:0 12px;
  border:1px dashed rgba(255,255,255,.28);border-radius:10px;
  font-size:12px;color:#9BBFB7;
}
.footer-col h4{font-size:15px;color:#F2FBF8;margin-bottom:18px;font-weight:600}
.footer-col ul{display:grid;gap:12px}
.footer-col a{font-size:14px;color:#9BBFB7}
.footer-col a:hover{color:#fff}
.ft-plain{font-size:14px;color:#9BBFB7}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12)}
.footer-bottom-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:13px;color:#8FB3AB;
}
.footer-domain{font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ===================== 移动端抽屉 ===================== */
.drawer-mask{
  position:fixed;inset:0;background:rgba(12,47,41,.45);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(330px,86vw);
  background:#fff;z-index:80;transform:translateX(105%);
  transition:transform .28s ease;display:flex;flex-direction:column;
  box-shadow:-20px 0 50px -30px rgba(12,47,41,.6);
}
.mobile-drawer.is-open{transform:none}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 20px;border-bottom:1px solid var(--line);
}
.drawer-close{
  width:38px;height:38px;border-radius:11px;border:1px solid var(--line);
  background:#fff;color:var(--brand-900);font-size:18px;cursor:pointer;line-height:1;
}
.drawer-body{padding:20px;overflow-y:auto;flex:1}
.drawer-title{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--ink-400);margin-bottom:14px}
.drawer-nav{display:grid;gap:8px;margin-bottom:26px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border-radius:var(--r-sm);background:var(--paper);
  color:var(--brand-900);font-size:15px;font-weight:500;
}
.drawer-nav a.is-active{background:var(--mint);color:var(--brand-700);font-weight:600}
.drawer-contact{border-top:1px solid var(--line);padding-top:18px;font-size:13.5px;color:var(--ink-600);display:grid;gap:10px}
.drawer-cta{margin-top:20px}

/* ===================== 动效 ===================== */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .32s ease-out,transform .32s ease-out}
[data-reveal].is-visible{opacity:1;transform:none}

/* ===================== 响应式 ===================== */
@media (max-width:1279px){
  :root{--section:88px}
  .container{padding:0 22px}
}
@media (max-width:1023px){
  :root{--section:76px}
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .nav-actions .text-link{display:none}
  .cat-hero-inner{padding:60px 0 70px}
  .stagger-card{grid-column:1 / -1}
  .stagger-card.is-right{grid-column:1 / -1}
  .stagger-card{margin-bottom:40px}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .cta-band{padding:48px 36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--section:60px}
  .container{padding:0 20px}
  .topbar-tip{display:none}
  .topbar-actions a:nth-child(2){display:none}
  .nav-inner{height:64px;gap:14px}
  .site-header.is-scrolled .nav-inner{height:58px}
  .logo-text{font-size:15px}
  .nav-actions .btn{display:none}
  .cat-hero-inner{padding:46px 0 56px}
  .cat-hero .hero-sub{font-size:15.5px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:30px}
  .stagger-inner,.stagger-card.is-flip .stagger-inner{grid-template-columns:1fr}
  .stagger-card.is-flip .stagger-media{order:0}
  .stagger-media{min-height:220px}
  .stagger-body{padding:26px 22px}
  .metric-band{padding:38px 24px;border-radius:var(--r-lg)}
  .metric-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .steps{grid-template-columns:1fr}
  .cta-band{padding:36px 22px;border-radius:var(--r-lg)}
  .form-card{padding:26px 20px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 20px 32px}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start;gap:8px;padding:18px 20px}
}
@media (max-width:479px){
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .metric-grid{grid-template-columns:1fr 1fr}
  .metric-cell{padding:18px 16px}
  .data-badge{font-size:11.5px;padding:6px 11px}
  .faq-q{font-size:15.5px;padding:16px 18px}
  .faq-a-inner{padding:16px 18px 20px;font-size:14.5px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  [data-reveal]{opacity:1;transform:none}
}