/* roulang page: index */
:root{
  --primary:#0E6B5C;
  --primary-dark:#0A4C41;
  --primary-deep:#0A3C33;
  --primary-light:#E4F2EE;
  --accent:#E2734A;
  --accent-light:#FCEBE3;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --line:#E6E2D8;
  --ink:#14201D;
  --ink-2:#55655F;
  --ink-3:#8A968F;
  --success:#2E8F6B;
  --warn:#D9902F;
  --r-pill:999px;
  --r-card:16px;
  --r-block:22px;
  --r-input:12px;
  --sh1:0 1px 2px rgba(20,32,29,.04);
  --sh2:0 8px 24px rgba(20,32,29,.08);
  --sh3:0 18px 48px rgba(20,32,29,.12);
  --container:1200px;
  --font-cn:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
*,*::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:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:12px;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-dark);}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.3;font-weight:700;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(14,107,92,.45);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section--tight{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:800;letter-spacing:-.01em;}
.section-head p{margin:10px 0 0;color:var(--ink-2);max-width:640px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;font-weight:600;color:var(--primary);background:var(--primary-light);border-radius:var(--r-pill);padding:6px 14px;margin-bottom:16px;}
.eyebrow i{font-size:12px;}
.muted{color:var(--ink-2);}
.small{font-size:13px;color:var(--ink-3);}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;padding:16px 16px 0;pointer-events:none;}
.nav-pill{
  pointer-events:auto;
  max-width:1200px;margin:0 auto;
  height:64px;display:flex;align-items:center;gap:18px;
  padding:0 14px 0 18px;
  background:rgba(255,255,255,.72);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid rgba(230,226,216,.9);
  border-radius:var(--r-pill);
  box-shadow:var(--sh2);
  transition:height .25s ease,background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .nav-pill{height:58px;background:rgba(255,255,255,.94);box-shadow:var(--sh3);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(140deg,var(--primary),var(--primary-dark));color:#fff;font-size:16px;box-shadow:var(--sh1);}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-text strong{font-size:16px;font-weight:800;color:var(--ink);letter-spacing:.01em;}
.brand-text em{font-style:normal;font-size:11px;color:var(--ink-3);letter-spacing:.14em;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{position:relative;padding:10px 14px;border-radius:var(--r-pill);font-size:14.5px;font-weight:500;color:var(--ink-2);white-space:nowrap;transition:background .2s ease,color .2s ease;}
.nav-link:hover{background:var(--primary-light);color:var(--primary-dark);}
.nav-link.is-active{background:var(--primary);color:#fff;font-weight:600;}
.nav-cta{flex:0 0 auto;}
.nav-toggle{display:none;margin-left:auto;width:44px;height:44px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;color:var(--primary);font-size:17px;cursor:pointer;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn i{font-size:14px;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh1);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh2);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--sh1);}
.btn-accent:hover{background:#cf6339;color:#fff;transform:translateY(-2px);box-shadow:var(--sh2);}
.btn-ghost{background:transparent;color:var(--primary);border-color:rgba(14,107,92,.4);}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-2px);}
.btn-light{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5);}
.btn-light:hover{background:rgba(255,255,255,.24);color:#fff;transform:translateY(-2px);}
.btn-lg{height:56px;padding:0 34px;font-size:16.5px;}
.btn:active{transform:translateY(0);box-shadow:var(--sh1);}

/* ---------- Hero ---------- */
.hero{position:relative;padding:168px 0 88px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.12;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.25) 70%,transparent);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.25) 70%,transparent);
}
.hero::after{
  content:"";position:absolute;width:520px;height:520px;right:-160px;top:-120px;
  background:radial-gradient(circle,rgba(14,107,92,.16),transparent 68%);
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:56px;align-items:center;}
.hero h1{font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.2;letter-spacing:-.015em;}
.hero h1 span{color:var(--primary);}
.hero-sub{margin:20px 0 0;font-size:17.5px;color:var(--ink-2);max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:28px;font-size:13px;color:var(--ink-3);font-family:var(--font-mono);}
.hero-meta span{display:inline-flex;align-items:center;gap:7px;}
.hero-meta i{color:var(--primary);}
.hero-visual{position:relative;}
.hero-visual img{border-radius:var(--r-block);border:1px solid var(--line);box-shadow:var(--sh3);}
.hero-chip{
  position:absolute;left:-18px;bottom:26px;
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:10px 18px;font-size:13px;font-weight:600;color:var(--primary-dark);box-shadow:var(--sh2);
}
.hero-chip i{color:var(--accent);}

/* ---------- 平台下载横条 ---------- */
.platform-bar{padding:0 0 72px;}
.platform-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.platform-card{
  display:flex;flex-direction:column;gap:6px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.platform-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:rgba(14,107,92,.3);}
.platform-card .p-top{display:flex;align-items:center;gap:10px;}
.platform-card .p-top i{font-size:20px;color:var(--primary);}
.platform-card .p-name{font-size:15.5px;font-weight:700;}
.platform-card .p-meta{font-size:12.5px;color:var(--ink-3);font-family:var(--font-mono);}
.platform-card.is-current{border-color:var(--accent);background:var(--accent-light);}
.platform-card.is-current .p-top i{color:var(--accent);}

/* ---------- 价值区 ---------- */
.value-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.vcard{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;gap:10px;
}
.vcard:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:rgba(14,107,92,.26);}
.vcard .v-icon{width:46px;height:46px;border-radius:14px;background:var(--primary-light);color:var(--primary);display:grid;place-items:center;font-size:18px;}
.vcard h3{font-size:20px;font-weight:700;}
.vcard p{margin:0;color:var(--ink-2);font-size:15px;}
.vcard--main{grid-column:span 6;grid-row:span 2;gap:18px;}
.vcard--main img{border-radius:14px;border:1px solid var(--line);aspect-ratio:16/9;object-fit:cover;width:100%;}
.vcard--main .v-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--ink-2);margin-top:10px;}
.vcard--main .v-points i{color:var(--primary);margin-top:5px;font-size:12px;}
.vcard--a{grid-column:span 3;}
.vcard--b{grid-column:span 3;}
.vcard--c{grid-column:span 4;}
.vcard--d{grid-column:span 4;}
.vcard--e{grid-column:span 4;}

/* ---------- 截图轮播 ---------- */
.shots{background:linear-gradient(180deg,#FFFFFF,rgba(228,242,238,.55));}
.carousel{position:relative;}
.carousel-track{
  display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:8px 4px 30px;scrollbar-width:none;
}
.carousel-track::-webkit-scrollbar{display:none;}
.shot-card{
  flex:0 0 auto;width:720px;max-width:86vw;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-block);
  padding:10px;box-shadow:var(--sh1);scroll-snap-align:center;
  transition:transform .25s ease,opacity .25s ease,box-shadow .25s ease;
  opacity:.75;transform:scale(.97);
}
.shot-card.is-current{opacity:1;transform:scale(1);box-shadow:var(--sh2);}
.shot-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:14px;border:1px solid var(--line);}
.shot-card figcaption{font-size:13px;text-align:center;color:var(--ink-2);padding:12px 8px 6px;}
.carousel-nav{display:flex;align-items:center;justify-content:center;gap:18px;margin-top:6px;}
.carousel-arrow{width:44px;height:44px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;color:var(--primary);cursor:pointer;transition:background .2s ease,transform .2s ease;}
.carousel-arrow:hover{background:var(--primary-light);transform:translateY(-2px);}
.carousel-dots{display:flex;gap:8px;}
.carousel-dots button{width:9px;height:9px;border-radius:var(--r-pill);border:none;background:rgba(14,107,92,.24);cursor:pointer;padding:0;transition:width .22s ease,background .22s ease;}
.carousel-dots button.is-active{width:26px;background:var(--primary);}

/* ---------- 系统要求 ---------- */
.req-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.req-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 28px;box-shadow:var(--sh1);transition:transform .22s ease,box-shadow .22s ease;}
.req-card:hover{transform:translateY(-3px);box-shadow:var(--sh2);}
.req-card h3{display:flex;align-items:center;gap:10px;font-size:18px;margin-bottom:14px;}
.req-card h3 i{color:var(--primary);font-size:17px;}
.req-list{display:grid;gap:10px;}
.req-list div{display:flex;justify-content:space-between;gap:16px;border-bottom:1px dashed var(--line);padding-bottom:9px;}
.req-list dt{font-size:14px;color:var(--ink-2);}
.req-list dd{margin:0;font-size:14px;font-weight:600;font-family:var(--font-mono);color:var(--primary-dark);text-align:right;}
.req-note{margin-top:26px;background:var(--primary-light);border-radius:var(--r-card);padding:18px 22px;font-size:14.5px;color:var(--primary-dark);display:flex;gap:12px;align-items:flex-start;}
.req-note i{margin-top:6px;}

/* ---------- 评价墙 ---------- */
.review-cols{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.review-col{display:grid;gap:24px;}
.review-col--offset{margin-top:42px;}
.review-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px 26px;box-shadow:var(--sh1);transition:transform .22s ease,box-shadow .22s ease;}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:12px;}
.avatar{width:44px;height:44px;border-radius:50%;background:var(--primary-light);color:var(--primary);display:grid;place-items:center;font-weight:700;font-size:15px;}
.review-name{font-size:15px;font-weight:700;}
.stars{font-size:12px;color:var(--warn);letter-spacing:2px;}
.review-card p{margin:0;font-size:14.8px;color:var(--ink-2);}
.review-tag{display:inline-block;margin-top:14px;}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:12.5px;font-weight:600;letter-spacing:.02em;background:var(--primary-light);color:var(--primary-dark);}
.badge--accent{background:var(--accent-light);color:#b5542e;}

/* ---------- 下载大区 ---------- */
.download-band{
  position:relative;overflow:hidden;border-radius:var(--r-block);
  background:var(--primary-deep);color:#fff;padding:64px 56px;
}
.download-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.14;
}
.download-band::after{
  content:"";position:absolute;width:420px;height:420px;right:-120px;bottom:-180px;
  background:radial-gradient(circle,rgba(226,115,74,.32),transparent 70%);
}
.download-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 176px;gap:48px;align-items:center;}
.download-band h2{color:#fff;font-size:clamp(24px,2.6vw,34px);font-weight:800;}
.download-band p{color:rgba(255,255,255,.78);margin:14px 0 0;max-width:560px;font-size:15.5px;}
.download-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.qr-card{background:#fff;border-radius:var(--r-card);padding:12px;text-align:center;box-shadow:var(--sh3);}
.qr-card img{border-radius:10px;border:1px solid var(--line);width:100%;aspect-ratio:1/1;object-fit:cover;}
.qr-card span{display:block;font-size:12px;color:var(--ink-2);margin-top:8px;}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;height:100%;}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh2);border-color:rgba(14,107,92,.28);}
.news-link{display:flex;flex-direction:column;height:100%;color:inherit;}
.news-thumb{aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--line);background:var(--primary-light);}
.news-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12.5px;color:var(--ink-3);}
.news-title{font-size:17px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s ease;}
.news-card:hover .news-title{color:var(--primary);}
.news-excerpt{margin:0;font-size:14.5px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-more{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:8px;}
.news-card:hover .news-more i{transform:translateX(4px);}
.news-more i{transition:transform .2s ease;font-size:12px;}
.empty-state{grid-column:1/-1;text-align:center;padding:56px 24px;background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);color:var(--ink-3);}
.empty-state i{font-size:28px;color:var(--primary);display:block;margin-bottom:12px;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.faq-side h2{font-size:clamp(24px,2.6vw,34px);font-weight:800;}
.faq-side p{color:var(--ink-2);margin-top:14px;}
.faq-list{display:grid;gap:12px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:background .24s ease,border-color .24s ease;}
.faq-item.is-open{background:var(--primary-light);border-color:rgba(14,107,92,.3);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;background:transparent;border:none;cursor:pointer;text-align:left;padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);}
.faq-q i{color:var(--primary);transition:transform .24s ease;font-size:14px;}
.faq-item.is-open .faq-q i{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease-out;}
.faq-a p{margin:0;padding:0 22px 20px;font-size:15px;color:var(--ink-2);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary-deep);color:rgba(255,255,255,.78);margin-top:0;}
.footer-cta{position:relative;padding:72px 0;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-cta .container{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.footer-cta h2{color:#fff;font-size:clamp(22px,2.4vw,30px);font-weight:800;}
.footer-cta p{margin:10px 0 0;color:rgba(255,255,255,.7);}
.footer-main{padding:64px 0 40px;}
.footer-cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);}
.footer-brand strong{color:#fff;font-size:16px;font-weight:800;}
.footer-brand em{font-style:normal;display:block;font-size:11px;letter-spacing:.14em;color:rgba(255,255,255,.55);}
.footer-col h4{color:#fff;font-size:14.5px;margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-col a:hover{color:#fff;}
.footer-col p{font-size:14px;margin:0 0 10px;color:rgba(255,255,255,.66);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;}
.footer-bottom .container{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55);}
.wave-line{height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);}

/* ---------- 移动端抽屉 ---------- */
.nav-drawer{
  position:fixed;inset:0;z-index:1100;background:var(--primary-deep);
  padding:88px 24px 32px;display:flex;flex-direction:column;gap:8px;
  transform:translateX(100%);transition:transform .3s ease;overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0);}
.nav-drawer a{display:flex;align-items:center;justify-content:space-between;min-height:52px;padding:0 18px;border-radius:14px;background:rgba(255,255,255,.07);color:#fff;font-size:16px;font-weight:500;}
.nav-drawer a.is-active{background:rgba(255,255,255,.16);}
.nav-drawer .drawer-close{position:absolute;top:20px;right:20px;width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.3);background:transparent;color:#fff;font-size:17px;cursor:pointer;}
.nav-drawer .btn{margin-top:16px;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .section{padding:72px 0;}
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .nav-pill{padding:0 12px;}
  .hero{padding:140px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .platform-grid{grid-template-columns:repeat(2,1fr);}
  .vcard--main{grid-column:span 12;grid-row:auto;}
  .vcard--a,.vcard--b{grid-column:span 6;}
  .vcard--c,.vcard--d,.vcard--e{grid-column:span 6;}
  .req-grid{grid-template-columns:1fr;}
  .review-cols{grid-template-columns:1fr;}
  .review-col--offset{margin-top:0;}
  .download-band{padding:48px 32px;}
  .download-inner{grid-template-columns:1fr;gap:32px;}
  .qr-card{max-width:176px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .footer-cols{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:639px){
  body{font-size:15px;}
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .hero{padding:124px 0 48px;}
  .hero h1{font-size:clamp(26px,7.6vw,34px);}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .hero-chip{position:static;margin-top:14px;display:inline-flex;}
  .platform-grid{grid-template-columns:1fr;}
  .vcard--a,.vcard--b,.vcard--c,.vcard--d,.vcard--e{grid-column:span 12;}
  .shot-card{width:86vw;}
  .news-grid{grid-template-columns:1fr;}
  .footer-cols{grid-template-columns:1fr;}
  .download-band{padding:36px 22px;border-radius:18px;}
  .download-actions .btn{width:100%;}
  .footer-cta .container{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --primary:#0E6B5C;
  --primary-dark:#0A4C41;
  --primary-deep:#0A3C33;
  --primary-soft:#E4F2EE;
  --accent:#E2734A;
  --accent-dark:#C75F39;
  --accent-soft:#FCEBE3;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --line:#E6E2D8;
  --ink:#14201D;
  --ink-2:#55655F;
  --ink-3:#8A968F;
  --ok:#2E8F6B;
  --warn:#D9902F;
  --r-pill:999px;
  --r-card:16px;
  --r-block:22px;
  --r-input:12px;
  --sh1:0 1px 2px rgba(20,32,29,.04);
  --sh2:0 8px 24px rgba(20,32,29,.08);
  --sh3:0 18px 48px rgba(20,32,29,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding-top:104px;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-dark)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.3;color:var(--ink);letter-spacing:.005em}
p{margin:0}
ul,ol{margin:0;padding:0}
ul{list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:2000}
.skip-link:focus{left:0;color:#fff}

/* ============ 导航 ============ */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:1000;padding:0 16px}
.nav-pill{
  max-width:var(--container);
  margin:0 auto;
  height:64px;
  display:flex;
  align-items:center;
  gap:18px;
  padding:0 10px 0 18px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.78);
  border:1px solid rgba(255,255,255,.7);
  box-shadow:var(--sh2);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  transition:background .25s ease,box-shadow .25s ease,height .25s ease;
}
.is-scrolled .nav-pill{background:rgba(255,255,255,.94);box-shadow:var(--sh3);height:58px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--primary),var(--primary-dark));
  color:#fff;font-size:17px;flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:800;letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:11px;color:var(--ink-2);letter-spacing:.16em}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  display:inline-flex;align-items:center;height:40px;padding:0 15px;
  font-size:14.5px;color:var(--ink-2);border-radius:var(--r-pill);
  white-space:nowrap;transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--primary);background:var(--primary-soft)}
.nav-link.is-active{color:var(--primary);background:var(--primary-soft);font-weight:600}
.nav-cta{flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;color:var(--ink);
  font-size:17px;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle:hover{color:var(--primary);border-color:var(--primary)}

.drawer{
  position:fixed;inset:0;z-index:1100;display:none;
  background:#fff;padding:22px;
}
.drawer.is-open{display:block}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:44px;height:44px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;color:var(--ink);font-size:18px;cursor:pointer}
.drawer-links{display:flex;flex-direction:column;gap:8px}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 18px;border-radius:14px;background:var(--bg);
  color:var(--ink);font-size:16px;font-weight:600;
}
.drawer-links a:hover{background:var(--primary-soft);color:var(--primary)}
.drawer-foot{margin-top:26px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;text-align:center;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-sm{height:44px;padding:0 18px;font-size:14px}
.btn-lg{height:56px;padding:0 30px;font-size:16.5px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh2)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh3)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh1)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(226,115,74,.28)}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(226,115,74,.32)}
.btn-accent:active{transform:translateY(0);box-shadow:var(--sh1)}
.btn-ghost{background:transparent;color:var(--primary);border-color:rgba(14,107,92,.35)}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-dark);border-color:var(--primary);transform:translateY(-2px)}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid rgba(14,107,92,.45);outline-offset:2px}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section-tight{padding:56px 0}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:12px}
.section-head p{color:var(--ink-2);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--primary);background:var(--primary-soft);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:14px;
}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;letter-spacing:.02em;font-weight:600;
  color:var(--primary);background:var(--primary-soft);
  padding:5px 12px;border-radius:var(--r-pill);
}
.tag-accent{color:var(--accent);background:var(--accent-soft)}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;
  padding:56px 0 44px;
  background-image:linear-gradient(180deg,rgba(246,244,239,.94),rgba(246,244,239,.99)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-3);margin-bottom:20px}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--primary)}
.crumb-current{color:var(--ink-3);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-block;vertical-align:bottom}
.article-hero h1{
  font-size:clamp(26px,3.6vw,42px);
  line-height:1.25;
  max-width:900px;
  margin-bottom:22px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;font-size:14px;color:var(--ink-2)}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--primary)}
.article-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}

/* ============ 正文布局 ============ */
.article-layout{display:flex;flex-wrap:wrap;gap:48px;align-items:flex-start}
.article-main{flex:1 1 620px;min-width:0}
.article-side{flex:0 0 320px;max-width:340px;position:sticky;top:104px;display:flex;flex-direction:column;gap:20px}

.article-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-block);
  padding:40px 44px;
  box-shadow:var(--sh1);
}
.article-body{max-width:760px;font-size:16px;line-height:1.85;color:var(--ink)}
.article-body>*+*{margin-top:1.25em}
.article-body h2{
  font-size:clamp(20px,2.1vw,26px);
  line-height:1.4;
  margin-top:40px;
  padding-left:14px;
  border-left:4px solid var(--primary);
}
.article-body h3{font-size:20px;line-height:1.45;margin-top:30px;color:var(--primary-dark)}
.article-body h4{font-size:17px;margin-top:24px}
.article-body p{color:var(--ink)}
.article-body ul,.article-body ol{padding-left:22px}
.article-body ul li,.article-body ol li{margin:8px 0;color:var(--ink)}
.article-body ul{list-style:none;padding-left:6px}
.article-body ul li{position:relative;padding-left:20px}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:7px;height:7px;border-radius:2px;background:var(--primary);
}
.article-body ol{list-style:decimal;padding-left:24px}
.article-body ol li::marker{color:var(--primary);font-weight:700}
.article-body blockquote{
  margin:28px 0;padding:16px 22px;
  border-left:4px solid var(--primary);
  background:var(--primary-soft);
  border-radius:0 14px 14px 0;
  color:var(--ink-2);
}
.article-body blockquote p{color:var(--ink-2)}
.article-body img{border-radius:12px;border:1px solid var(--line);margin:24px auto}
.article-body a{font-weight:600;border-bottom:1px solid rgba(14,107,92,.35)}
.article-body a:hover{border-bottom-color:var(--primary)}
.article-body table{width:100%;border-collapse:collapse;font-size:14.5px;display:block;overflow-x:auto}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:var(--primary-soft);color:var(--primary-dark);font-weight:700;white-space:nowrap}
.article-body pre,.article-body code{
  font-family:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
  font-size:14px;
}
.article-body pre{
  background:#F1F0EA;border:1px solid var(--line);border-radius:12px;
  padding:16px 18px;overflow-x:auto;line-height:1.7;
}
.article-body hr{border:none;border-top:1px solid var(--line);margin:36px 0}

.article-foot{
  margin-top:40px;padding-top:26px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.article-foot .tag-row{display:flex;flex-wrap:wrap;gap:8px}

.empty-state{
  text-align:center;padding:56px 24px;
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-block);
}
.empty-state i{font-size:34px;color:var(--primary);margin-bottom:16px;display:block}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--ink-2);margin-bottom:22px}

/* ============ 侧栏 ============ */
.side-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--sh1);
}
.side-card h3{
  font-size:15px;letter-spacing:.02em;margin-bottom:14px;
  display:flex;align-items:center;gap:8px;color:var(--primary-dark);
}
.side-card h3 i{color:var(--primary)}
.toc-list a{
  display:block;font-size:14px;color:var(--ink-2);
  padding:7px 12px;border-left:2px solid var(--line);
  border-radius:0 8px 8px 0;line-height:1.5;
}
.toc-list a:hover{color:var(--primary);background:var(--primary-soft);border-left-color:var(--primary)}
.toc-list a.is-sub{padding-left:26px;font-size:13.5px}
.toc-empty{font-size:13.5px;color:var(--ink-3);line-height:1.7}
.side-cta{
  background:linear-gradient(150deg,var(--primary),var(--primary-dark));
  border:none;color:#fff;position:relative;overflow:hidden;
}
.side-cta h3{color:#fff}
.side-cta h3 i{color:#fff}
.side-cta p{font-size:14px;color:rgba(255,255,255,.86);line-height:1.75;margin-bottom:16px}
.side-cta .btn-accent{width:100%}
.side-cta::after{
  content:"";position:absolute;right:-40px;bottom:-40px;width:150px;height:150px;
  border-radius:50%;background:rgba(255,255,255,.08);
}
.side-links li+li{margin-top:8px}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14px;color:var(--ink-2);padding:11px 14px;
  border:1px solid var(--line);border-radius:12px;background:#fff;
  transition:transform .2s ease,color .2s ease,border-color .2s ease,background .2s ease;
}
.side-links a:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-soft);transform:translateX(3px)}
.side-links i{color:var(--primary);font-size:12px}

/* ============ 相关推荐 ============ */
.related-section{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh2);border-color:rgba(14,107,92,.28)}
.rel-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--primary-soft)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:17.5px;line-height:1.45}
.rel-card:hover .rel-body h3{color:var(--primary)}
.rel-body p{font-size:14px;color:var(--ink-2);line-height:1.75;flex:1}
.rel-more{font-size:13.5px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}

/* ============ 下载区 ============ */
.download-band{
  position:relative;overflow:hidden;
  background:linear-gradient(150deg,var(--primary-deep),var(--primary) 70%);
  color:#fff;padding:76px 0;
}
.download-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;
}
.download-band .container{position:relative;z-index:2}
.download-inner{display:flex;flex-wrap:wrap;gap:36px;align-items:center;justify-content:space-between}
.download-copy{flex:1 1 520px;min-width:0}
.download-copy h2{color:#fff;font-size:clamp(24px,2.6vw,34px);margin-bottom:14px}
.download-copy p{color:rgba(255,255,255,.86);font-size:15.5px;line-height:1.8;max-width:560px;margin-bottom:24px}
.download-actions{display:flex;flex-wrap:wrap;gap:14px}
.download-qr{
  width:132px;height:132px;border-radius:18px;overflow:hidden;
  background:#fff;padding:8px;box-shadow:var(--sh3);flex:0 0 auto;
}
.download-qr img{width:100%;height:100%;object-fit:cover;border-radius:12px}
.qr-note{font-size:12.5px;color:rgba(255,255,255,.7);text-align:center;margin-top:10px}
.platform-strip{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.platform-chip{
  display:inline-flex;align-items:center;gap:9px;
  padding:9px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);
  color:#fff;font-size:13.5px;
}
.platform-chip i{font-size:15px}

/* ============ FAQ ============ */
.faq-wrap{display:flex;flex-wrap:wrap;gap:36px}
.faq-intro{flex:0 0 300px;max-width:340px}
.faq-intro h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:14px}
.faq-intro p{color:var(--ink-2);font-size:15px;line-height:1.8}
.faq-list{flex:1 1 520px;min-width:0;display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  overflow:hidden;transition:border-color .25s ease,background .25s ease,box-shadow .25s ease;
}
.faq-item.is-open{background:var(--primary-soft);border-color:rgba(14,107,92,.3);box-shadow:var(--sh1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:transparent;border:none;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);text-align:left;line-height:1.5;
}
.faq-q i{color:var(--primary);transition:transform .24s ease;flex:0 0 auto}
.faq-item.is-open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease-out}
.faq-a p{padding:0 22px 20px;font-size:14.5px;line-height:1.85;color:var(--ink-2)}

/* ============ 页脚 ============ */
.site-footer{background:var(--primary-deep);color:#fff}
.footer-cta{background:rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.08)}
.footer-cta .container{
  display:flex;flex-wrap:wrap;gap:22px;align-items:center;justify-content:space-between;
  padding-top:44px;padding-bottom:44px;
}
.footer-cta h2{color:#fff;font-size:clamp(21px,2.2vw,27px);margin-bottom:8px}
.footer-cta p{color:rgba(255,255,255,.78);font-size:15px}
.footer-main{padding:58px 0 40px}
.footer-cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);color:#fff}
.footer-brand span{display:flex;flex-direction:column;line-height:1.2}
.footer-brand strong{font-size:17px;color:#fff}
.footer-brand em{font-style:normal;font-size:11px;letter-spacing:.16em;color:rgba(255,255,255,.66)}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);margin-bottom:12px;max-width:340px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700}
.footer-col ul li+li{margin-top:10px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-col ul a:hover{color:#fff}
.wave-line{
  height:8px;
  background-image:radial-gradient(circle at 10px 8px,rgba(255,255,255,.16) 6px,transparent 7px);
  background-size:28px 16px;background-repeat:repeat-x;
}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1)}
.footer-bottom .container{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;
  padding-top:20px;padding-bottom:26px;font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .section{padding:64px 0}
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .article-side{position:static;flex:1 1 100%;max-width:none;flex-direction:row;flex-wrap:wrap}
  .article-side .side-card{flex:1 1 300px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-cols{grid-template-columns:1fr 1fr}
  .faq-intro{flex:1 1 100%;max-width:none}
}
@media screen and (max-width:767px){
  body{padding-top:92px}
  .site-header{top:10px}
  .nav-pill{height:56px;padding:0 8px 0 12px}
  .is-scrolled .nav-pill{height:54px}
  .brand-text strong{font-size:15.5px}
  .article-panel{padding:26px 20px}
  .article-body{font-size:15px;line-height:1.85}
  .article-body h2{margin-top:32px}
  .article-side{flex-direction:column}
  .article-side .side-card{flex:1 1 auto}
  .related-grid{grid-template-columns:1fr}
  .download-inner{gap:26px}
  .download-actions .btn{width:100%}
  .footer-cols{grid-template-columns:1fr;gap:26px}
  .footer-bottom .container{flex-direction:column;align-items:flex-start}
}
@media screen and (max-width:519px){
  .container{padding:0 16px}
  .article-hero{padding:36px 0 32px}
  .article-hero h1{font-size:23px}
  .section{padding:52px 0}
  .download-band{padding:56px 0}
  .faq-q{font-size:15px;padding:16px 18px}
}

/* roulang page: category1 */
:root{
  --brand:#0E6B5C;
  --brand-deep:#0A4C41;
  --brand-soft:#E4F2EE;
  --accent:#E2734A;
  --accent-soft:#FCEBE3;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --line:#E6E2D8;
  --ink:#14201D;
  --muted:#55655F;
  --faint:#8A968F;
  --footer:#0A3C33;
  --ok:#2E8F6B;
  --warn:#D9902F;
  --radius-s:12px;
  --radius:16px;
  --radius-lg:24px;
  --pill:999px;
  --sh-1:0 1px 2px rgba(20,32,29,.04);
  --sh-2:0 8px 24px rgba(20,32,29,.08);
  --sh-3:0 18px 48px rgba(20,32,29,.12);
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:104px;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--brand-deep);}
a:focus-visible,button:focus-visible{outline:3px solid rgba(14,107,92,.45);outline-offset:2px;border-radius:10px;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;color:var(--ink);letter-spacing:.01em;}
h1{font-size:clamp(30px,4.4vw,50px);line-height:1.2;}
h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;}
h3{font-size:20px;line-height:1.45;font-weight:700;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0 0 1em;padding-left:1.25em;}
li{margin-bottom:.45em;}
li:last-child{margin-bottom:0;}
strong{font-weight:700;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head .kicker{display:inline-block;margin-bottom:14px;}
.section-head p{color:var(--muted);margin-top:14px;}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--pill);
  background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.kicker.is-accent{background:var(--accent-soft);color:var(--accent);}
.muted{color:var(--muted);}
.small{font-size:14px;}
.mono{font-family:var(--mono);letter-spacing:.02em;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  border-radius:var(--pill);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn i{font-size:14px;}
.btn-lg{min-height:56px;padding:0 30px;font-size:16px;}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#CE6039;color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-accent:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:transparent;color:var(--brand);border-color:rgba(14,107,92,.35);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:var(--brand);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-block{width:100%;}

/* 导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  padding:16px 0;
  transition:padding .25s ease;
}
.site-header.is-scrolled{padding:8px 0;}
.nav-pill{
  width:calc(100% - 48px);max-width:1240px;margin:0 auto;
  min-height:64px;
  display:flex;align-items:center;gap:18px;
  padding:8px 12px 8px 18px;
  border-radius:var(--pill);
  background:rgba(255,255,255,.72);
  border:1px solid rgba(230,226,216,.9);
  box-shadow:var(--sh-2);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  transition:background-color .25s ease,box-shadow .25s ease,min-height .25s ease;
}
.site-header.is-scrolled .nav-pill{background:rgba(255,255,255,.94);box-shadow:var(--sh-3);min-height:58px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto;}
.brand:hover{color:var(--brand);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 38px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--brand),var(--brand-deep));
  color:#fff;font-size:16px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:800;}
.brand-text em{font-style:normal;font-size:11px;color:var(--faint);letter-spacing:.14em;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;
  padding:10px 14px;border-radius:var(--pill);
  font-size:14.5px;font-weight:500;color:var(--muted);
  transition:background-color .2s ease,color .2s ease;
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-deep);}
.nav-link.is-active{background:var(--brand-soft);color:var(--brand);font-weight:700;}
.nav-cta{flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--pill);
  align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);font-size:18px;
}
.nav-drawer{
  display:none;
  position:fixed;inset:0;
  z-index:1100;
  background:rgba(10,60,51,.98);
  padding:28px 20px 32px;
  flex-direction:column;gap:8px;
  overflow-y:auto;
}
.nav-drawer.is-open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-brand{color:#fff;font-size:17px;font-weight:800;}
.drawer-close{width:44px;height:44px;border-radius:var(--pill);background:rgba(255,255,255,.12);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:18px;}
.drawer-label{color:rgba(255,255,255,.55);font-size:12px;letter-spacing:.14em;margin:16px 4px 6px;}
.drawer-link{
  display:block;padding:16px 18px;border-radius:var(--radius);
  color:#F6F4EF;font-size:16px;font-weight:500;
  background:rgba(255,255,255,.06);
}
.drawer-link:hover,.drawer-link.is-active{background:rgba(255,255,255,.16);color:#fff;}
.drawer-cta{margin-top:22px;}

/* Hero */
.page-hero{
  position:relative;
  padding:150px 0 72px;
  background-image:linear-gradient(120deg,rgba(10,60,51,.94) 0%,rgba(10,60,51,.82) 46%,rgba(10,76,65,.72) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  color:#F6F4EF;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:auto 0 -1px 0;height:80px;
  background:linear-gradient(180deg,rgba(246,244,239,0),rgba(246,244,239,.95));
  pointer-events:none;
}
.page-hero h1{color:#fff;}
.page-hero .lede{color:rgba(246,244,239,.86);font-size:17px;max-width:640px;margin-top:18px;}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13.5px;color:rgba(246,244,239,.7);margin-bottom:22px;}
.crumb a{color:rgba(246,244,239,.82);}
.crumb a:hover{color:#fff;}
.crumb .sep{opacity:.5;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:30px;
  font-size:13.5px;color:rgba(246,244,239,.78);
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px;}
.hero-meta i{color:#8FD3C2;}
.hero-tag{
  position:relative;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--pill);
  background:rgba(226,115,74,.2);border:1px solid rgba(226,115,74,.5);
  color:#FBD9C9;font-size:13px;font-weight:600;margin-bottom:20px;
}

/* 平台下载条 */
.dl-strip{position:relative;z-index:3;margin-top:-46px;padding-bottom:8px;}
.dl-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
}
.dl-item{
  display:flex;flex-direction:column;gap:10px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 20px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.dl-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(14,107,92,.35);}
.dl-item .dl-top{display:flex;align-items:center;gap:10px;}
.dl-item .dl-icon{
  width:38px;height:38px;border-radius:12px;flex:0 0 38px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);font-size:17px;
}
.dl-item .dl-name{font-weight:700;font-size:16px;}
.dl-item .dl-spec{font-size:13px;color:var(--faint);font-family:var(--mono);}
.dl-item .dl-link{
  margin-top:auto;font-size:14px;font-weight:600;color:var(--brand);
  display:inline-flex;align-items:center;gap:6px;
}
.dl-item .dl-link:hover{gap:10px;color:var(--brand-deep);}

/* 布局：目录 + 内容 */
.layout{display:flex;flex-wrap:wrap;}
.toc-col{position:relative;}
.toc{
  position:sticky;top:104px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px 22px;box-shadow:var(--sh-1);
}
.toc h4{font-size:13px;letter-spacing:.14em;color:var(--faint);font-weight:600;margin-bottom:14px;}
.toc ul{list-style:none;padding:0;margin:0;}
.toc li{margin-bottom:4px;}
.toc a{
  display:block;padding:9px 12px;border-radius:var(--radius-s);
  font-size:14.5px;color:var(--muted);
  transition:background-color .2s ease,color .2s ease;
}
.toc a:hover{background:var(--brand-soft);color:var(--brand-deep);}
.toc-tip{margin-top:18px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--faint);}

.content-col{display:flex;flex-direction:column;gap:28px;}
.box-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:38px 40px;box-shadow:var(--sh-1);
}
.box-card h2{font-size:clamp(22px,2.2vw,28px);}
.box-card h2 .step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;margin-right:12px;
  background:var(--brand);color:#fff;font-size:15px;font-family:var(--mono);
  vertical-align:3px;
}
.box-card h3{margin:26px 0 10px;}
.box-card p{color:var(--muted);}
.lead-p{color:var(--muted);margin-top:14px;}
.divider{height:1px;background:var(--line);border:0;margin:30px 0;}

.tick-list{list-style:none;padding:0;margin:20px 0 0;}
.tick-list li{
  position:relative;padding-left:32px;margin-bottom:14px;color:var(--muted);
}
.tick-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:2px;
  width:20px;height:20px;border-radius:6px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);font-size:11px;
}
.num-list{list-style:none;counter-reset:ns;padding:0;margin:20px 0 0;}
.num-list li{
  counter-increment:ns;position:relative;padding-left:40px;margin-bottom:16px;color:var(--muted);
}
.num-list li::before{
  content:counter(ns,decimal-leading-zero);
  position:absolute;left:0;top:1px;
  font-family:var(--mono);font-size:13px;font-weight:700;color:var(--accent);
  width:28px;height:28px;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--accent-soft);
}

.shot-card{
  margin:28px 0;border-radius:var(--radius-lg);
  background:var(--card);border:1px solid var(--line);
  padding:10px;box-shadow:var(--sh-2);
}
.shot-card img{border-radius:var(--radius);width:100%;}
.shot-card figcaption{
  font-size:13px;color:var(--faint);text-align:center;padding:12px 6px 4px;
}
.note-box{
  display:flex;gap:16px;
  margin:26px 0;padding:22px 24px;
  border-radius:var(--radius);
  background:var(--brand-soft);
  border-left:4px solid var(--brand);
}
.note-box i{color:var(--brand);font-size:18px;margin-top:4px;}
.note-box p{color:var(--brand-deep);margin:0;font-size:15px;}
.warn-box{
  display:flex;gap:16px;
  margin:26px 0;padding:22px 24px;
  border-radius:var(--radius);
  background:var(--accent-soft);
  border-left:4px solid var(--accent);
}
.warn-box i{color:var(--accent);font-size:18px;margin-top:4px;}
.warn-box p{color:#8C4526;margin:0;font-size:15px;}

.spec-list{margin:22px 0 0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.spec-list dl{margin:0;}
.spec-row{
  display:grid;grid-template-columns:200px 1fr;gap:18px;
  padding:15px 22px;border-bottom:1px solid var(--line);
  background:#fff;
}
.spec-row:last-child{border-bottom:0;}
.spec-row:nth-child(odd){background:#FCFBF8;}
.spec-row dt{font-weight:600;color:var(--ink);font-size:15px;}
.spec-row dd{margin:0;color:var(--muted);font-size:15px;}

/* 平台子卡 */
.plat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:24px;}
.plat-card{
  border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;background:#FCFBF8;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease;
}
.plat-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);background:#fff;}
.plat-card h4{font-size:16px;display:flex;align-items:center;gap:9px;margin-bottom:8px;}
.plat-card h4 i{color:var(--brand);}
.plat-card p{font-size:14.5px;color:var(--muted);margin:0;}

/* 场景卡 */
.scene-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;}
.scene-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform .24s ease,box-shadow .24s ease;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.scene-card .thumb{aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--line);}
.scene-card .thumb img{width:100%;height:100%;object-fit:cover;}
.scene-card .body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:8px;}
.scene-card .body h3{font-size:17px;}
.scene-card .body p{font-size:14.5px;color:var(--muted);margin:0;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--pill);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  background:var(--brand-soft);color:var(--brand);
}
.badge.is-accent{background:var(--accent-soft);color:var(--accent);}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  margin-bottom:14px;overflow:hidden;
  transition:background-color .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.faq-item.is-open{background:var(--brand-soft);border-color:rgba(14,107,92,.3);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-q .icon{
  flex:0 0 28px;width:28px;height:28px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:#fff;color:var(--brand);border:1px solid var(--line);
  transition:transform .24s ease,background-color .24s ease,color .24s ease;
  font-size:12px;
}
.faq-item.is-open .faq-q .icon{transform:rotate(180deg);background:var(--brand);color:#fff;border-color:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out;}
.faq-a p{padding:0 24px 22px;color:var(--muted);font-size:15px;margin:0;}

/* CTA 带 */
.cta-band{
  position:relative;
  background:var(--footer);
  color:#F6F4EF;
  padding:76px 0;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-80px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(143,211,194,.22),rgba(143,211,194,0) 68%);
  pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr auto;gap:48px;align-items:center;
}
.cta-band h2{color:#fff;}
.cta-band p{color:rgba(246,244,239,.78);max-width:560px;margin-top:14px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.cta-qr{
  width:132px;padding:10px;border-radius:var(--radius);
  background:rgba(255,255,255,.94);box-shadow:var(--sh-3);
}
.cta-qr img{border-radius:10px;width:100%;}
.cta-qr span{display:block;text-align:center;font-size:12px;color:var(--brand-deep);margin-top:8px;}

/* 页脚 */
.site-footer{background:var(--footer);color:rgba(246,244,239,.82);}
.footer-cta{background:linear-gradient(120deg,var(--brand) 0%,var(--brand-deep) 100%);padding:52px 0;}
.footer-cta .container{display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;}
.footer-cta h2{color:#fff;font-size:clamp(22px,2.4vw,30px);}
.footer-cta p{color:rgba(255,255,255,.82);margin:10px 0 0;}
.footer-main{padding:64px 0 44px;}
.footer-cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand span:last-child{display:flex;flex-direction:column;line-height:1.2;color:#fff;}
.footer-brand strong{font-size:16px;font-weight:800;}
.footer-brand em{font-style:normal;font-size:11px;letter-spacing:.14em;color:rgba(246,244,239,.6);}
.footer-col p{font-size:14px;color:rgba(246,244,239,.68);margin-bottom:12px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:rgba(246,244,239,.72);font-size:14.5px;}
.footer-col a:hover{color:#fff;}
.wave-line{
  height:1px;margin:0 auto;max-width:1192px;
  background:linear-gradient(90deg,rgba(143,211,194,0) 0%,rgba(143,211,194,.55) 50%,rgba(143,211,194,0) 100%);
}
.footer-bottom{padding:24px 0 32px;}
.footer-bottom .container{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:rgba(246,244,239,.6);}

/* 响应式 */
@media screen and (max-width:1023px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .section{padding:72px 0;}
  .page-hero{padding:132px 0 60px;}
  .dl-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .plat-grid{grid-template-columns:1fr;}
  .toc{position:static;margin-bottom:26px;}
  .box-card{padding:30px 26px;}
  .cta-inner{grid-template-columns:1fr;}
  .cta-qr{width:132px;}
  .footer-cols{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:767px){
  .container{padding:0 18px;}
  .nav-pill{width:calc(100% - 32px);padding:8px 10px 8px 14px;}
  .section{padding:56px 0;}
  .page-hero{padding:120px 0 56px;}
  .dl-grid{grid-template-columns:1fr;}
  .dl-strip{margin-top:-32px;}
  .scene-grid{grid-template-columns:1fr;}
  .spec-row{grid-template-columns:1fr;gap:4px;padding:14px 18px;}
  .box-card{padding:24px 20px;border-radius:var(--radius);}
  .toc{border-radius:var(--radius);padding:20px 18px;}
  .footer-cols{grid-template-columns:1fr;}
  .footer-cta{padding:40px 0;}
  .hero-actions .btn{width:100%;}
  .cta-actions .btn{width:100%;}
}
@media screen and (max-width:519px){
  body{font-size:15px;}
  .brand-text em{display:none;}
  .page-hero h1{font-size:30px;}
}

/* roulang page: category3 */
:root{
  --primary:#0E6B5C;
  --primary-dark:#0A4C41;
  --primary-deep:#0A3C33;
  --primary-light:#E4F2EE;
  --accent:#E2734A;
  --accent-dark:#C75F38;
  --accent-light:#FCEBE3;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --line:#E6E2D8;
  --ink:#14201D;
  --ink-2:#55655F;
  --ink-3:#8A968F;
  --success:#2E8F6B;
  --warn:#D9902F;
  --radius-pill:999px;
  --radius-card:16px;
  --radius-lg:24px;
  --radius-input:12px;
  --shadow-1:0 1px 2px rgba(20,32,29,.04);
  --shadow-2:0 8px 24px rgba(20,32,29,.08);
  --shadow-3:0 18px 48px rgba(20,32,29,.12);
  --section-y:96px;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  --font-mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary)}
button{font-family:inherit;font-size:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.3;color:var(--ink);letter-spacing:.01em}
p{margin:0}
ul,ol,dl,dd{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(14,107,92,.45);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--section-y) 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--primary);background:var(--primary-light);
  border-radius:var(--radius-pill);padding:6px 14px;margin-bottom:16px;
}
.section-head h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:14px}
.section-head p{color:var(--ink-2);font-size:16px}
.muted{color:var(--ink-3)}
.mono{font-family:var(--font-mono);letter-spacing:.02em}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:1000;padding:0 16px;pointer-events:none}
.nav-pill{
  pointer-events:auto;
  max-width:1200px;margin:0 auto;height:64px;
  display:flex;align-items:center;gap:18px;
  padding:0 12px 0 18px;
  background:rgba(255,255,255,.72);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid rgba(230,226,216,.9);
  border-radius:var(--radius-pill);
  box-shadow:var(--shadow-2);
  transition:background .25s ease,box-shadow .25s ease,height .25s ease;
}
.site-header.is-scrolled .nav-pill{background:rgba(255,255,255,.94);box-shadow:var(--shadow-3);height:58px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  display:grid;place-items:center;color:#fff;font-size:16px;
  background:linear-gradient(145deg,var(--primary) 0%,var(--primary-dark) 100%);
  box-shadow:0 6px 16px rgba(14,107,92,.24);
}
.brand-text{display:flex;align-items:baseline;gap:4px;white-space:nowrap}
.brand-text strong{font-size:17px;font-weight:800;color:var(--ink)}
.brand-text em{font-style:normal;font-size:12px;font-weight:600;color:var(--primary);letter-spacing:.04em}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  padding:10px 14px;border-radius:var(--radius-pill);
  font-size:14.5px;font-weight:500;color:var(--ink-2);white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:var(--primary-light);color:var(--primary-dark)}
.nav-link.is-active{background:var(--primary);color:#fff;font-weight:700}
.nav-link.is-active:hover{color:#fff}
.nav-cta{height:44px;padding:0 20px;font-size:14.5px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  background:#fff;border-radius:var(--radius-pill);color:var(--primary-dark);
  align-items:center;justify-content:center;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-pill);
  border:1px solid transparent;font-size:15px;font-weight:700;letter-spacing:.01em;
  cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(14,107,92,.22)}
.btn-primary:hover{background:#0c5f52;color:#fff;box-shadow:var(--shadow-2)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(226,115,74,.26)}
.btn-accent:hover{background:var(--accent-dark);color:#fff;box-shadow:var(--shadow-2)}
.btn-ghost{background:transparent;color:var(--primary-dark);border-color:rgba(14,107,92,.4)}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark)}
.btn-light{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.45)}
.btn-light:hover{background:rgba(255,255,255,.24);color:#fff}
.btn-lg{height:56px;padding:0 34px;font-size:16px}
.btn-sm{height:40px;padding:0 18px;font-size:14px}

/* ---------- 内页 Banner ---------- */
.page-banner{
  position:relative;overflow:hidden;
  padding:150px 0 72px;
  background-color:#0A3C33;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  opacity:.34;filter:saturate(.9);
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(140deg,rgba(10,60,51,.94) 0%,rgba(10,76,65,.86) 52%,rgba(14,107,92,.72) 100%);
}
.page-banner .container{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(228,242,238,.76);margin-bottom:22px}
.crumbs a{color:rgba(228,242,238,.9)}
.crumbs a:hover{color:#fff}
.crumbs span.sep{opacity:.55}
.crumbs span.current{color:#fff;font-weight:600}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;letter-spacing:.02em;
  background:rgba(255,255,255,.14);color:#E4F2EE;border:1px solid rgba(228,242,238,.28);
}
.tag-solid{background:var(--accent-light);color:#B4502B;border-color:transparent}
.tag-soft{background:var(--primary-light);color:var(--primary-dark);border-color:transparent}
.page-banner h1{
  color:#fff;font-size:clamp(30px,4.4vw,50px);line-height:1.18;
  max-width:16em;margin-bottom:18px;
}
.page-banner .lead{color:rgba(233,245,241,.9);font-size:17px;max-width:42em;margin-bottom:28px}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.banner-meta{display:flex;flex-wrap:wrap;gap:22px;font-size:13.5px;color:rgba(228,242,238,.78)}
.banner-meta i{color:#8FD3C1;margin-right:6px}

/* ---------- 数据指标带 ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:-58px;position:relative;z-index:5}
.stat-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 22px;box-shadow:var(--shadow-2);transition:transform .2s ease,box-shadow .2s ease;
}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-3)}
.stat-card .stat-label{font-size:13px;color:var(--ink-3);letter-spacing:.04em;margin-bottom:8px}
.stat-card .stat-value{font-family:var(--font-mono);font-size:24px;font-weight:700;color:var(--primary-dark)}
.stat-card .stat-note{font-size:13px;color:var(--ink-2);margin-top:6px}

/* ---------- 版本对照定义列表 ---------- */
.spec-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:12px 28px;box-shadow:var(--shadow-1);
}
.spec-row{
  display:grid;grid-template-columns:220px 1fr;gap:24px;
  padding:20px 0;border-bottom:1px dashed var(--line);align-items:start;
}
.spec-row:last-child{border-bottom:none}
.spec-row dt{font-weight:700;color:var(--primary-dark);font-size:15px;display:flex;align-items:center;gap:8px}
.spec-row dt i{color:var(--primary);font-size:14px}
.spec-row dd{color:var(--ink-2);font-size:15px}
.spec-row dd strong{color:var(--ink);font-weight:700}

/* ---------- 发布通道卡 ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.channel-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.channel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#CFE7DF}
.channel-card h3{font-size:20px;margin-bottom:10px}
.channel-card p{color:var(--ink-2);font-size:15px;margin-bottom:16px}
.channel-card ul{display:grid;gap:8px}
.channel-card li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2)}
.channel-card li i{color:var(--success);margin-top:6px;font-size:12px}
.channel-badge{position:absolute;top:24px;right:24px}

/* ---------- 兼容矩阵 ---------- */
.matrix-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.matrix-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;padding-bottom:40px}
.matrix-card{
  background:var(--bg);border:1px solid var(--line);border-radius:20px;overflow:hidden;
  box-shadow:var(--shadow-1);transition:transform .22s ease,box-shadow .22s ease;
}
.matrix-card:nth-child(even){transform:translateY(40px)}
.matrix-card:hover{box-shadow:var(--shadow-2);transform:translateY(-4px)}
.matrix-card:nth-child(even):hover{transform:translateY(36px)}
.matrix-figure{margin:0;background:#DCEBE6}
.matrix-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.matrix-body{padding:26px}
.matrix-body h3{font-size:20px;margin-bottom:10px}
.matrix-body p{color:var(--ink-2);font-size:15px;margin-bottom:18px}
.matrix-facts{display:grid;gap:10px;border-top:1px dashed var(--line);padding-top:16px}
.matrix-facts div{display:flex;justify-content:space-between;gap:16px;font-size:14px}
.matrix-facts span:first-child{color:var(--ink-3)}
.matrix-facts span:last-child{color:var(--ink);font-weight:600;text-align:right}
.state{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;padding:4px 12px;border-radius:var(--radius-pill)}
.state-ok{background:rgba(46,143,107,.12);color:#1F6E52}
.state-warn{background:rgba(217,144,47,.14);color:#9A6416}
.matrix-note{
  margin-top:64px;background:var(--primary-light);border:1px solid #CFE7DF;
  border-radius:var(--radius-card);padding:22px 26px;display:flex;gap:16px;align-items:flex-start;
}
.matrix-note i{color:var(--primary);font-size:18px;margin-top:4px}
.matrix-note p{font-size:14.5px;color:var(--primary-dark)}

/* ---------- 升级检查清单 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.check-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 22px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.check-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.check-num{
  display:grid;place-items:center;width:40px;height:40px;border-radius:14px;
  background:var(--primary-light);color:var(--primary-dark);
  font-family:var(--font-mono);font-weight:700;margin-bottom:16px;
}
.check-card h3{font-size:17px;margin-bottom:8px}
.check-card p{font-size:14.5px;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-side h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:14px}
.faq-side p{color:var(--ink-2);font-size:15.5px;margin-bottom:20px}
.faq-side .faq-contact{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;font-size:14.5px;color:var(--ink-2);box-shadow:var(--shadow-1);
}
.faq-side .faq-contact strong{display:block;color:var(--ink);margin-bottom:6px}
.faq-list{display:grid;gap:14px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  overflow:hidden;transition:background .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.faq-item.is-open{background:var(--primary-light);border-color:#CFE7DF;box-shadow:var(--shadow-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:none;text-align:left;padding:20px 22px;
  font-size:16px;font-weight:600;color:var(--ink);
}
.faq-q .faq-icon{
  flex:0 0 30px;width:30px;height:30px;border-radius:50%;
  display:grid;place-items:center;background:#fff;color:var(--primary);
  border:1px solid var(--line);transition:transform .24s ease,background .24s ease,color .24s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--primary);color:#fff;border-color:var(--primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 22px}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:0 0 22px;font-size:15px;color:var(--ink-2);line-height:1.85}

/* ---------- 下载 CTA 大区 ---------- */
.download-band{
  position:relative;overflow:hidden;background:var(--primary-deep);color:#fff;
  padding:88px 0;
}
.download-band::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;opacity:.2;
}
.download-band::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(680px 320px at 82% 20%,rgba(226,115,74,.24),transparent 70%),
             linear-gradient(120deg,rgba(10,60,51,.95),rgba(10,76,65,.86));
}
.download-band .container{position:relative;z-index:3}
.download-inner{display:grid;grid-template-columns:1fr 320px;gap:48px;align-items:center}
.download-inner h2{color:#fff;font-size:clamp(26px,3vw,38px);margin-bottom:16px}
.download-inner p{color:rgba(233,245,241,.86);font-size:16px;max-width:34em;margin-bottom:26px}
.download-actions{display:flex;flex-wrap:wrap;gap:14px}
.qr-card{
  background:rgba(255,255,255,.96);border-radius:20px;padding:18px;
  box-shadow:var(--shadow-3);text-align:center;
}
.qr-card img{width:132px;height:132px;margin:0 auto 12px;border-radius:12px;object-fit:cover;border:1px solid var(--line)}
.qr-card strong{display:block;font-size:14.5px;color:var(--ink)}
.qr-card span{font-size:12.5px;color:var(--ink-3)}
.platform-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.platform-pill{
  display:inline-flex;align-items:center;gap:10px;
  padding:10px 18px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.1);border:1px solid rgba(228,242,238,.26);
  font-size:14px;color:#E4F2EE;transition:transform .2s ease,background .2s ease;
}
.platform-pill:hover{transform:translateY(-2px);background:rgba(255,255,255,.2);color:#fff}
.platform-pill i{color:#8FD3C1}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary-deep);color:rgba(233,245,241,.86)}
.footer-cta{background:linear-gradient(120deg,#0E6B5C 0%,#0A4C41 100%)}
.footer-cta .container{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding-top:52px;padding-bottom:52px;flex-wrap:wrap;
}
.footer-cta h2{color:#fff;font-size:clamp(22px,2.4vw,30px);margin-bottom:8px}
.footer-cta p{color:rgba(233,245,241,.86);font-size:15px}
.footer-main{padding:64px 0 44px}
.footer-cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.04em}
.footer-col ul{display:grid;gap:11px}
.footer-col li a{font-size:14.5px;color:rgba(233,245,241,.78);transition:color .2s ease,padding-left .2s ease}
.footer-col li a:hover{color:#fff;padding-left:4px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand strong{color:#fff;font-size:17px;font-weight:800}
.footer-brand em{font-style:normal;font-size:12px;color:#8FD3C1;letter-spacing:.04em}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(233,245,241,.72);margin-bottom:10px;max-width:32em}
.wave-line{
  height:1px;margin:0 24px;
  background:linear-gradient(90deg,transparent,rgba(143,211,193,.5),transparent);
}
.footer-bottom{padding:22px 0 30px}
.footer-bottom .container{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(233,245,241,.6);
}

/* ---------- 移动端抽屉 ---------- */
@media screen and (max-width:1023px){
  .nav-links{
    position:fixed;inset:96px 16px auto 16px;
    flex-direction:column;align-items:stretch;gap:6px;
    background:#fff;border:1px solid var(--line);border-radius:24px;
    padding:16px;box-shadow:var(--shadow-3);
    display:none;z-index:1100;
  }
  .site-header.nav-open .nav-links{display:flex;animation:drawerIn .22s ease-out}
  .nav-link{padding:14px 16px;font-size:16px;border-radius:14px}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .nav-cta{display:none}
  @keyframes drawerIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}
}
@media screen and (min-width:1024px){
  .nav-toggle{display:none}
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  :root{--section-y:68px}
  .page-banner{padding:132px 0 60px}
  .stat-strip{grid-template-columns:repeat(2,1fr);margin-top:-44px}
  .matrix-grid{grid-template-columns:1fr;gap:22px;padding-bottom:0}
  .matrix-card:nth-child(even),
  .matrix-card:nth-child(even):hover{transform:none}
  .matrix-card:hover{transform:translateY(-3px)}
  .check-grid{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .channel-grid{grid-template-columns:1fr}
  .download-inner{grid-template-columns:1fr;gap:36px}
  .qr-card{max-width:300px}
  .footer-cols{grid-template-columns:1fr 1fr;gap:32px}
}
@media screen and (max-width:767px){
  .container{padding:0 16px}
  body{font-size:15px}
  .page-banner{padding:118px 0 52px}
  .page-banner h1{font-size:clamp(26px,7vw,34px)}
  .banner-actions .btn{width:100%}
  .spec-panel{padding:8px 18px}
  .spec-row{grid-template-columns:1fr;gap:6px;padding:16px 0}
  .stat-strip{grid-template-columns:1fr;gap:14px;margin-top:-34px}
  .check-grid{grid-template-columns:1fr}
  .footer-cols{grid-template-columns:1fr}
  .footer-cta .container{flex-direction:column;align-items:flex-start}
  .footer-cta .btn{width:100%}
  .download-actions .btn{width:100%}
  .matrix-body{padding:22px}
}
@media screen and (min-width:1024px) and (max-width:1279px){
  .nav-link{padding:10px 11px;font-size:14px}
}

/* roulang page: category2 */
:root{
  --brand:#0E6B5C;
  --brand-dark:#0A4C41;
  --brand-deep:#0A3C33;
  --brand-light:#E4F2EE;
  --accent:#E2734A;
  --accent-light:#FCEBE3;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --line:#E6E2D8;
  --ink:#14201D;
  --ink-2:#55655F;
  --ink-3:#8A968F;
  --success:#2E8F6B;
  --warn:#D9902F;
  --r-pill:999px;
  --r-card:16px;
  --r-block:22px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(20,32,29,.04);
  --sh-2:0 8px 24px rgba(20,32,29,.08);
  --sh-3:0 18px 48px rgba(20,32,29,.12);
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
}

*,*::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:1.85;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden;}
img{max-width:100%;display:block;border-radius:var(--r-card);}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(14,107,92,.45);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* Foundation 栅格定制 */
.grid-x{display:flex;flex-wrap:wrap;margin:0 -12px;}
.grid-x > .cell{padding:0 12px;}
.grid-x.grid-margin-x{margin:0 -12px;}
.grid-x.grid-margin-x > .cell{margin-left:0;margin-right:0;padding:0 12px;}
.grid-x.grid-padding-x{margin:0 -12px;}
.grid-x.grid-padding-x > .cell{padding:0 12px;}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  padding:16px 0;
  transition:padding .3s ease;
}
.nav-pill{
  width:calc(100% - 48px);
  max-width:1200px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:24px;
  padding:9px 12px 9px 20px;
  background:rgba(255,255,255,.72);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border:1px solid rgba(20,32,29,.08);
  border-radius:var(--r-pill);
  box-shadow:var(--sh-2);
  transition:background .3s ease,box-shadow .3s ease,padding .3s ease;
}
.site-header.is-scrolled{padding:10px 0;}
.site-header.is-scrolled .nav-pill{
  background:rgba(255,255,255,.95);
  box-shadow:var(--sh-3);
  padding-top:6px;padding-bottom:6px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--brand),var(--brand-dark));
  color:#fff;font-size:17px;
  box-shadow:0 6px 16px rgba(14,107,92,.28);
}
.brand-text{display:flex;align-items:baseline;gap:4px;line-height:1;}
.brand-text strong{font-size:18px;font-weight:800;letter-spacing:.01em;color:var(--ink);}
.brand-text em{font-style:normal;font-size:12px;font-weight:600;color:var(--brand);letter-spacing:.04em;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  display:inline-flex;align-items:center;min-height:44px;
  padding:0 16px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:background .2s ease,color .2s ease;
  white-space:nowrap;
}
.nav-link:hover{background:var(--brand-light);color:var(--brand);}
.nav-link.is-active{background:var(--brand);color:#fff;font-weight:600;}
.nav-cta{flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;color:var(--brand);
  font-size:17px;cursor:pointer;
  align-items:center;justify-content:center;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn i{font-size:14px;}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(226,115,74,.28);}
.btn-accent:hover{background:#d0643c;color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(226,115,74,.34);}
.btn-accent:active{transform:translateY(0);box-shadow:0 4px 12px rgba(226,115,74,.24);}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(14,107,92,.24);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(14,107,92,.3);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-light{background:#fff;color:var(--brand-dark);}
.btn-light:hover{background:#fff;color:var(--brand);transform:translateY(-2px);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);}
.btn-lg{height:56px;padding:0 32px;font-size:16px;}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:18px;}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb span{color:var(--ink-3);}
.breadcrumb .current{color:var(--brand);font-weight:600;}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:150px 0 88px;
  background:linear-gradient(180deg,#EFF4F1 0%,var(--bg) 100%);
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.16;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0));
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0));
}
.page-hero .container{position:relative;z-index:2;}
.hero-copy{max-width:600px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand);
  font-size:13px;font-weight:600;letter-spacing:.02em;
  margin-bottom:20px;
}
.hero-copy h1{
  font-size:clamp(30px,4.4vw,48px);
  line-height:1.2;font-weight:800;letter-spacing:-.01em;
  margin-bottom:18px;
}
.hero-sub{
  font-size:17px;font-weight:600;color:var(--brand);
  margin-bottom:14px;
}
.hero-copy p.lead{font-size:16px;color:var(--ink-2);margin-bottom:28px;max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13px;color:var(--ink-3);}
.hero-meta span{display:inline-flex;align-items:center;gap:7px;}
.hero-meta i{color:var(--brand);font-size:12px;}

.hero-visual{position:relative;margin-top:36px;}
.hero-shot{
  position:relative;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-block);
  padding:10px;box-shadow:var(--sh-3);
}
.hero-shot img{border-radius:14px;width:100%;height:auto;}
.hero-float{
  position:absolute;left:-14px;bottom:28px;
  display:flex;align-items:center;gap:12px;
  background:rgba(255,255,255,.96);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:12px 16px;box-shadow:var(--sh-2);
}
.hero-float .dot{
  width:36px;height:36px;border-radius:12px;
  background:var(--accent-light);color:var(--accent);
  display:flex;align-items:center;justify-content:center;font-size:15px;
}
.hero-float strong{display:block;font-size:14px;line-height:1.4;}
.hero-float em{font-style:normal;font-size:12px;color:var(--ink-3);}

/* ============ 通用板块 ============ */
.section{padding:92px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-tag{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--brand);text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.3;font-weight:800;letter-spacing:-.01em;
  margin-bottom:14px;
}
.section-head p{color:var(--ink-2);font-size:16px;}

/* ============ 指标条 ============ */
.kpi-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  margin-top:44px;
}
.kpi{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px 20px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.kpi:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.kpi b{
  display:block;font-family:var(--mono);
  font-size:30px;line-height:1.1;color:var(--brand);font-weight:700;
}
.kpi span{display:block;margin-top:8px;font-size:14px;color:var(--ink-2);}

/* ============ 时间轴 ============ */
.timeline{display:grid;gap:26px;position:relative;}
.tl-item{
  display:grid;grid-template-columns:64px 1fr;gap:22px;
  position:relative;padding-bottom:6px;
}
.tl-item::before{
  content:"";position:absolute;left:31px;top:64px;bottom:-26px;
  width:2px;background:linear-gradient(180deg,var(--brand-light),rgba(228,242,238,0));
}
.tl-item:last-child::before{display:none;}
.tl-num{
  width:64px;height:64px;border-radius:var(--r-card);
  background:var(--surface);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:19px;font-weight:700;color:var(--brand);
  box-shadow:var(--sh-1);position:relative;z-index:2;
}
.tl-item:hover .tl-num{background:var(--brand);color:#fff;border-color:var(--brand);transition:.25s ease;}
.tl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-block);
  padding:26px 26px 24px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.tl-head{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:10px;}
.tl-head h3{font-size:20px;font-weight:700;line-height:1.4;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.tag.accent{background:var(--accent-light);color:#B8542E;}
.tl-card p{color:var(--ink-2);font-size:15px;}
.tl-points{margin-top:14px;display:grid;gap:8px;}
.tl-points li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);}
.tl-points i{color:var(--success);font-size:12px;margin-top:7px;}
.shot{
  margin-top:18px;background:#F2F1EC;border:1px solid var(--line);
  border-radius:var(--r-card);padding:8px;
}
.shot img{border-radius:10px;width:100%;height:auto;}
.shot figcaption{font-size:13px;color:var(--ink-3);text-align:center;padding:9px 6px 3px;line-height:1.6;}

/* ============ 场景卡 ============ */
.card{
  height:100%;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D8E4DF;}
.card .ico{
  width:48px;height:48px;border-radius:14px;
  background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:19px;
  margin-bottom:18px;
}
.card h3{font-size:19px;font-weight:700;margin-bottom:10px;}
.card p{font-size:15px;color:var(--ink-2);}
.card-media{margin:-26px -24px 20px;padding:0;border-radius:var(--r-card) var(--r-card) 0 0;overflow:hidden;}
.card-media img{border-radius:0;width:100%;aspect-ratio:16/10;object-fit:cover;}
.scene-grid > .cell{margin-bottom:24px;}

/* ============ 准备清单 ============ */
.spec-panel{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-block);padding:8px 26px;box-shadow:var(--sh-1);
}
.spec-row{
  display:grid;grid-template-columns:190px 1fr;gap:18px;
  padding:20px 0;border-bottom:1px dashed var(--line);
}
.spec-row:last-child{border-bottom:none;}
.spec-row dt{
  font-size:14px;font-weight:700;color:var(--brand);
  display:flex;align-items:center;gap:9px;
}
.spec-row dt i{font-size:13px;}
.spec-row dd{margin:0;font-size:15px;color:var(--ink-2);}
.note-box{
  margin-top:24px;display:flex;gap:14px;
  background:var(--accent-light);border:1px solid #F3D6C7;
  border-radius:var(--r-card);padding:18px 20px;
}
.note-box i{color:var(--accent);font-size:18px;margin-top:4px;}
.note-box p{font-size:14px;color:#8C4B2C;}

.side-shot{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-block);padding:10px;box-shadow:var(--sh-2);
}
.side-shot img{border-radius:14px;}
.side-shot figcaption{font-size:13px;color:var(--ink-3);text-align:center;padding:10px 6px 4px;}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.faq-intro h2{font-size:clamp(24px,2.6vw,32px);font-weight:800;line-height:1.3;margin-bottom:14px;}
.faq-intro p{color:var(--ink-2);font-size:15px;margin-bottom:22px;}
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-input);overflow:hidden;
  transition:background .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.faq-item.is-open{background:var(--brand-light);border-color:#CBE3DC;box-shadow:var(--sh-1);}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;background:transparent;border:none;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);text-align:left;line-height:1.6;
}
.faq-q:hover{color:var(--brand);}
.faq-q .qico{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);color:var(--brand);font-size:12px;
  transition:transform .24s ease,background .24s ease,color .24s ease;
}
.faq-item.is-open .qico{transform:rotate(180deg);background:var(--brand);color:#fff;border-color:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out;}
.faq-a p{padding:0 20px 20px;font-size:15px;color:var(--ink-2);}
.faq-item.is-open .faq-a{max-height:340px;}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-deep);
  color:#fff;border-radius:0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.14;
}
.cta-inner{
  position:relative;z-index:2;
  padding:76px 0;
  display:grid;grid-template-columns:1fr 200px;gap:44px;align-items:center;
}
.cta-inner h2{font-size:clamp(24px,2.8vw,34px);font-weight:800;line-height:1.3;margin-bottom:14px;color:#fff;}
.cta-inner p{color:rgba(255,255,255,.78);font-size:15px;max-width:600px;margin-bottom:26px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.qr-card{
  background:rgba(255,255,255,.96);border-radius:var(--r-card);
  padding:12px;text-align:center;box-shadow:var(--sh-3);
}
.qr-card img{border-radius:10px;width:132px;height:132px;margin:0 auto;object-fit:cover;}
.qr-card span{display:block;font-size:12px;color:var(--ink-2);margin-top:10px;line-height:1.5;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.82);}
.footer-cta{background:rgba(255,255,255,.04);border-bottom:1px solid rgba(255,255,255,.08);}
.footer-cta .container{
  display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
  padding-top:44px;padding-bottom:44px;
}
.footer-cta h2{font-size:23px;font-weight:700;color:#fff;margin-bottom:8px;}
.footer-cta p{font-size:14px;color:rgba(255,255,255,.72);}
.footer-main{padding:64px 0 40px;}
.footer-cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand strong{font-size:17px;font-weight:800;color:#fff;}
.footer-brand em{font-style:normal;font-size:12px;color:#8FD0C0;margin-left:4px;}
.footer-col p{font-size:14px;color:rgba(255,255,255,.68);margin-bottom:10px;line-height:1.8;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.7);}
.footer-col ul a:hover{color:#fff;}
.wave-line{
  height:1px;margin:0 24px;
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.24),rgba(255,255,255,0));
}
.footer-bottom{padding:22px 0;}
.footer-bottom .container{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .nav-toggle{display:flex;}
  .nav-links{
    position:fixed;inset:0;z-index:1100;
    flex-direction:column;align-items:stretch;justify-content:center;
    gap:10px;padding:88px 28px 40px;
    background:var(--surface);
    border-radius:0;
    transform:translateY(-12px);
    opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .24s ease,transform .24s ease,visibility .24s;
    box-shadow:var(--sh-3);
    margin-left:0;
  }
  .nav-links.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0);}
  .nav-link{min-height:54px;font-size:17px;border-radius:var(--r-input);padding:0 20px;background:#F7F5F0;}
  .nav-link.is-active{background:var(--brand);}
  .nav-cta{display:none;}
  .section{padding:64px 0;}
  .page-hero{padding:126px 0 64px;}
  .kpi-row{grid-template-columns:repeat(2,1fr);}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .cta-inner{grid-template-columns:1fr;gap:32px;padding:60px 0;}
  .qr-card{width:180px;}
  .footer-cols{grid-template-columns:1fr 1fr;gap:30px;}
}
@media screen and (max-width:767px){
  .container{padding:0 16px;}
  .grid-x{margin:0 -8px;}
  .grid-x > .cell,.grid-x.grid-margin-x > .cell{padding:0 8px;}
  body{font-size:15px;}
  .page-hero{padding:112px 0 56px;}
  .hero-copy h1{font-size:clamp(26px,7vw,34px);}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-float{left:8px;bottom:14px;padding:10px 14px;}
  .kpi-row{grid-template-columns:1fr 1fr;gap:14px;}
  .kpi b{font-size:24px;}
  .tl-item{grid-template-columns:44px 1fr;gap:14px;}
  .tl-num{width:44px;height:44px;font-size:15px;border-radius:12px;}
  .tl-item::before{left:21px;top:48px;}
  .tl-card{padding:20px 18px;}
  .tl-head h3{font-size:18px;}
  .spec-row{grid-template-columns:1fr;gap:8px;}
  .spec-panel{padding:6px 18px;}
  .card{padding:22px 18px;}
  .card-media{margin:-22px -18px 18px;}
  .footer-cols{grid-template-columns:1fr;gap:28px;}
  .footer-cta .container{padding-top:36px;padding-bottom:36px;}
  .footer-cta .btn{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .section-alt{border-radius:0;}
  .faq-q{font-size:15px;padding:14px 16px;}
  .faq-a p{padding:0 16px 18px;}
}
@media screen and (max-width:519px){
  .kpi-row{grid-template-columns:1fr;}
  .hero-meta{gap:8px 16px;}
  .brand-text em{display:none;}
}