/* roulang page: index */
:root{
  --deep-900:#08261F;
  --brand-800:#0F3D34;
  --brand-700:#155246;
  --mint-400:#7FD8C4;
  --mint-100:#E7F6F1;
  --action-500:#FF6B35;
  --action-600:#E4551F;
  --amber-400:#FFC24B;
  --sand-bg:#F6F4EE;
  --card:#FFFFFF;
  --line:#E3E1D8;
  --ink-900:#16211E;
  --ink-600:#5A6B66;
  --ink-400:#8A9995;
  --grad-brand:linear-gradient(135deg,#0F3D34 0%,#155246 45%,#08261F 100%);
  --grad-action:linear-gradient(135deg,#FF6B35 0%,#FFC24B 100%);
  --shadow-card:0 1px 2px rgba(15,61,52,.06),0 14px 34px -16px rgba(15,61,52,.20);
  --shadow-float:0 2px 4px rgba(15,61,52,.08),0 22px 44px -18px rgba(15,61,52,.34);
  --radius-xl:24px;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--sand-bg);
  color:var(--ink-900);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button,input,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--action-500);outline-offset:2px;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul,ol,dl,dd{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 32px;}}

/* ---------- Dock 导航 ---------- */
.dock{
  position:fixed;top:12px;left:50%;transform:translateX(-50%);
  width:min(1120px,calc(100% - 24px));z-index:90;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:22px;
  box-shadow:var(--shadow-card);
  transition:box-shadow .25s ease,background .25s ease;
}
.dock.scrolled{box-shadow:var(--shadow-float);background:rgba(255,255,255,.95);}
.dock-inner{display:flex;align-items:center;gap:14px;padding:12px 16px;transition:padding .25s ease;}
.dock.scrolled .dock-inner{padding:8px 16px;}
.logo{display:flex;align-items:center;gap:10px;min-height:44px;}
.logo-mark{
  width:36px;height:36px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--grad-brand);color:#fff;font-weight:700;font-size:16px;letter-spacing:0;
  box-shadow:0 8px 18px -10px rgba(15,61,52,.8);
}
.logo-text{font-weight:700;font-size:16px;color:var(--brand-800);white-space:nowrap;}
.dock-nav{display:none;gap:4px;margin-left:10px;}
.dock-nav a{
  padding:9px 14px;border-radius:12px;font-size:15px;color:var(--ink-600);
  transition:background .18s ease,color .18s ease;white-space:nowrap;
}
.dock-nav a:hover{background:var(--mint-100);color:var(--brand-700);}
.dock-nav a.active{background:var(--mint-100);color:var(--brand-700);font-weight:600;}
.dock-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.dock-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;cursor:pointer;
  transition:background .18s ease,border-color .18s ease;
}
.dock-toggle:hover{background:var(--mint-100);border-color:var(--mint-400);}
.dock-mobile{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.dock-mobile.open{max-height:460px;}
.dock-mobile a{
  display:flex;align-items:center;min-height:48px;padding:12px 22px;
  border-top:1px solid var(--line);font-size:16px;color:var(--ink-600);
}
.dock-mobile a:hover,.dock-mobile a.active{background:var(--mint-100);color:var(--brand-700);font-weight:600;}
.dock-mobile a:last-child{border-radius:0 0 21px 21px;}
@media (min-width:1024px){
  .dock-nav{display:flex;}
  .dock-toggle{display:none;}
  .dock-mobile{display:none;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-md);border:1px solid transparent;cursor:pointer;
  padding:13px 22px;font-size:16px;font-weight:600;line-height:1.2;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn .arrow{display:inline-block;transition:transform .18s ease-out;font-size:18px;line-height:1;}
.btn:hover .arrow{transform:translateX(4px);}
.btn-primary{background:var(--grad-action);color:#fff;box-shadow:0 12px 26px -12px rgba(255,107,53,.85);}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 18px 32px -14px rgba(255,107,53,.9);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand-700);}
.btn-ghost:hover{transform:translateY(-1px);border-color:var(--mint-400);box-shadow:var(--shadow-card);}
.btn-ghost:active{transform:translateY(1px);}
.btn-dark{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.35);color:#fff;}
.btn-dark:hover{transform:translateY(-1px);background:rgba(255,255,255,.2);}
.btn-sm{padding:10px 16px;font-size:15px;border-radius:var(--radius-sm);}
.btn[disabled],.btn.is-disabled{filter:saturate(.6);cursor:not-allowed;transform:none;}
.w-full{width:100%;}

/* ---------- 通用徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;font-size:14px;
  background:var(--mint-100);color:var(--brand-700);border:1px solid rgba(21,82,70,.16);
}
.badge b{font-weight:700;}
.tag{
  display:inline-block;padding:4px 12px;border-radius:999px;font-size:13px;
  background:var(--mint-100);color:var(--brand-700);border:1px solid rgba(21,82,70,.14);
}
.tag-action{background:rgba(255,107,53,.12);color:var(--action-600);border-color:rgba(255,107,53,.24);}

/* ---------- 卡片 ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-xl);
  box-shadow:var(--shadow-card);transition:transform .22s ease,box-shadow .22s ease;
}
.card:hover{transform:translateY(-2px);}
.card-img{border-radius:var(--radius-lg);overflow:hidden;background:var(--mint-100);}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.card:hover .card-img img{transform:scale(1.03);}

/* ---------- 板块 ---------- */
.sec{padding:64px 0;}
@media (min-width:768px){.sec{padding:96px 0;}}
.sec-white{background:#fff;}
.sec-mint{background:linear-gradient(180deg,#fff 0%,var(--mint-100) 100%);}
.sec-line{border-top:1px solid var(--line);}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:34px;}
.sec-title{font-size:clamp(24px,3vw,32px);line-height:1.3;}
.sec-lead{margin-top:10px;max-width:720px;color:var(--ink-600);font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  letter-spacing:.06em;color:var(--brand-700);background:var(--mint-100);
  border:1px solid rgba(21,82,70,.14);border-radius:999px;padding:6px 14px;
}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:132px 0 72px;}
.hero-bg{
  position:absolute;inset:0;
  background-image:
    linear-gradient(135deg,rgba(15,61,52,.94) 0%,rgba(21,82,70,.74) 45%,rgba(8,38,31,.88) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero-grid{position:relative;display:grid;gap:40px;}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.15fr .85fr;align-items:center;gap:56px;}}
.hero h1{
  margin-top:18px;color:#fff;font-size:clamp(30px,4.4vw,54px);line-height:1.15;
  font-weight:700;letter-spacing:-.01em;
}
.hero-sub{margin-top:16px;color:rgba(255,255,255,.86);font-size:18px;line-height:1.7;max-width:520px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.hero-badges .badge{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.28);}
.hero-badges .badge b{color:var(--amber-400);}
.hero-card{
  background:rgba(255,255,255,.97);border:1px solid rgba(255,255,255,.6);
  border-radius:var(--radius-xl);padding:26px;box-shadow:var(--shadow-float);
}
.hero-card-top{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-600);font-weight:600;}
.pulse{width:10px;height:10px;border-radius:50%;background:#25B87F;box-shadow:0 0 0 4px rgba(37,184,127,.18);}
.hero-spec{margin:18px 0 22px;}
.hero-spec > div{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);}
.hero-spec > div:last-child{border-bottom:none;}
.hero-spec dt{color:var(--ink-400);font-size:14px;}
.hero-spec dd{font-weight:600;color:var(--brand-800);font-size:15px;text-align:right;}

/* ---------- 价值卡 ---------- */
.value-hero{
  grid-row:span 2;display:flex;flex-direction:column;overflow:hidden;
}
.value-hero .card-img{height:236px;border-radius:0;}
.value-hero-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.value-hero-body h3{font-size:20px;}
.value-hero-body p{color:var(--ink-600);font-size:15.5px;line-height:1.8;}
.value-card{padding:24px;display:flex;flex-direction:column;gap:10px;}
.value-icon{
  width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:var(--mint-100);color:var(--brand-700);font-weight:700;font-size:18px;
}
.value-card h3{font-size:18px;line-height:1.4;}
.value-card p{color:var(--ink-600);font-size:15px;line-height:1.75;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-weight:600;font-size:15px;margin-top:auto;}
.link-arrow span.arrow{transition:transform .18s ease-out;}
.link-arrow:hover span.arrow{transform:translateX(4px);}

/* ---------- 截图轮播 ---------- */
.snap-track{
  position:relative;display:flex;gap:20px;overflow-x:auto;padding:6px 4px 18px;
  scroll-snap-type:x mandatory;-ms-overflow-style:none;scrollbar-width:none;
}
.snap-track::-webkit-scrollbar{display:none;}
.snap-item{flex:0 0 82vw;scroll-snap-align:start;}
@media (min-width:768px){.snap-item{flex:0 0 360px;}}
@media (min-width:1280px){.snap-item{flex:0 0 380px;}}
.shot{overflow:hidden;}
.shot .card-img{height:210px;border-radius:0;}
.shot-body{padding:18px 20px 22px;}
.shot-body h3{font-size:17px;margin-bottom:6px;}
.shot-body p{color:var(--ink-600);font-size:14.5px;line-height:1.75;}
.dots{display:flex;gap:8px;justify-content:center;margin-top:6px;}
.dots button{
  width:9px;height:9px;border-radius:999px;border:none;cursor:pointer;
  background:rgba(21,82,70,.22);transition:all .2s ease;padding:0;
}
.dots button.active{width:26px;background:var(--brand-700);}

/* ---------- 系统要求 ---------- */
.spec-grid{display:grid;gap:16px;}
@media (min-width:768px){.spec-grid{grid-template-columns:repeat(2,1fr);}}
.spec-item{
  display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:18px 20px;box-shadow:var(--shadow-card);
}
.spec-item .ico{
  flex:0 0 40px;width:40px;height:40px;border-radius:12px;background:var(--mint-100);
  color:var(--brand-700);display:flex;align-items:center;justify-content:center;font-weight:700;
}
.spec-item dt{font-weight:600;font-size:16px;margin-bottom:2px;}
.spec-item dd{color:var(--ink-600);font-size:14.5px;line-height:1.7;}

/* ---------- 评价墙 ---------- */
.review-grid{display:grid;gap:16px;}
@media (min-width:768px){.review-grid{grid-template-columns:repeat(3,1fr);align-items:start;}}
.review{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-card);}
.review.alt{background:var(--mint-100);}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:12px;}
.avatar{
  width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--grad-brand);color:#fff;font-weight:600;
}
.review-name{font-weight:600;font-size:15px;}
.review-date{color:var(--ink-400);font-size:13px;}
.stars{color:var(--amber-400);letter-spacing:2px;font-size:14px;margin-bottom:8px;}
.review p{color:var(--ink-600);font-size:15px;line-height:1.8;}
@media (min-width:768px){.review:nth-child(2){margin-top:26px;}.review:nth-child(5){margin-top:26px;}}
@media (max-width:767px){
  .review-grid{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:12px;scrollbar-width:none;}
  .review-grid::-webkit-scrollbar{display:none;}
  .review{flex:0 0 82vw;scroll-snap-align:start;}
}

/* ---------- 下载 CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--grad-brand);border-radius:28px;padding:52px 28px;text-align:center;}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');background-size:cover;background-position:center;
  opacity:.16;mix-blend-mode:luminosity;
}
.cta-band-inner{position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,32px);}
.cta-band p{color:rgba(255,255,255,.8);margin:14px auto 0;max-width:620px;font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:28px;}
.cta-meta{margin-top:20px;color:rgba(255,255,255,.66);font-size:13.5px;}
.cta-meta span{color:var(--amber-400);font-weight:600;}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;gap:20px;}
@media (min-width:768px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr);}}
.news-card{
  display:flex;flex-direction:column;gap:12px;padding:24px;background:#fff;
  border:1px solid var(--line);border-left:4px solid var(--mint-400);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-card);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.news-card:hover{transform:translateY(-2px);border-left-color:var(--action-500);box-shadow:var(--shadow-float);}
.news-card h3{font-size:18px;line-height:1.5;}
.news-card p{color:var(--ink-600);font-size:15px;line-height:1.8;}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:6px;font-size:13px;color:var(--ink-400);}
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center;
  padding:56px 24px;background:#fff;border:1px dashed var(--line);border-radius:var(--radius-xl);
}
.empty-state .ico{
  width:56px;height:56px;border-radius:18px;background:var(--mint-100);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;
}
.empty-state p{color:var(--ink-600);}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);overflow:hidden;
}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;cursor:pointer;list-style:none;font-weight:600;font-size:17px;color:var(--brand-800);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 30px;width:30px;height:30px;border-radius:10px;background:var(--mint-100);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;font-size:18px;line-height:1;
  transition:transform .28s ease,background .28s ease,color .28s ease;
}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--action-500);color:#fff;}
.faq-body{padding:0 22px 22px;color:var(--ink-600);font-size:15.5px;line-height:1.85;}
.faq-body p + p{margin-top:10px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--grad-brand);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;gap:36px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .logo-mark{background:var(--grad-action);color:#fff;}
.footer-brand span{color:#fff;font-weight:700;font-size:17px;}
.site-footer p{font-size:14.5px;line-height:1.85;}
.footer-title{color:#fff;font-weight:600;font-size:16px;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14.5px;transition:color .18s ease;}
.footer-links a:hover{color:var(--mint-400);}
.footer-form label{display:block;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:8px;}
.footer-form input{
  width:100%;padding:12px 14px;border-radius:var(--radius-md);
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.08);color:#fff;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.footer-form input::placeholder{color:rgba(255,255,255,.45);}
.footer-form input:focus{outline:none;border-color:var(--action-500);box-shadow:0 0 0 2px rgba(255,107,53,.5);}
.footer-form .btn{margin-top:12px;width:100%;}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.16);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.55);
}

/* ---------- 表单（咨询） ---------- */
.form-grid{display:grid;gap:18px;}
@media (min-width:768px){.form-grid{grid-template-columns:repeat(2,1fr);}}
.field label{display:block;font-size:13px;color:var(--ink-600);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;padding:13px 15px;border-radius:var(--radius-md);border:1px solid var(--line);
  background:#fff;transition:border-color .18s ease,box-shadow .18s ease;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--action-500);box-shadow:0 0 0 2px rgba(255,107,53,.28);}
.field-full{grid-column:1 / -1;}

@media (max-width:767px){
  .hero{padding:118px 0 56px;}
  .sec-head{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --deep-900:#08261F;
  --brand-800:#0F3D34;
  --brand-700:#155246;
  --mint-400:#7FD8C4;
  --mint-100:#E7F6F1;
  --action-500:#FF6B35;
  --action-600:#E4551F;
  --amber-400:#FFC24B;
  --sand-bg:#F6F4EE;
  --card:#FFFFFF;
  --line:#E3E1D8;
  --ink-900:#16211E;
  --ink-600:#5A6B66;
  --ink-400:#8A9995;
  --grad-brand:linear-gradient(135deg,#0F3D34 0%,#155246 45%,#08261F 100%);
  --grad-action:linear-gradient(135deg,#FF6B35 0%,#FFC24B 100%);
  --shadow-card:0 1px 2px rgba(15,61,52,.06),0 14px 34px -16px rgba(15,61,52,.20);
  --shadow-dock:0 10px 30px -10px rgba(8,38,31,.28),0 2px 6px rgba(8,38,31,.08);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--sand-bg);
  color:var(--ink-900);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea{font:inherit}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:var(--mint-400);color:var(--deep-900)}
:focus-visible{outline:2px solid var(--action-500);outline-offset:2px;border-radius:8px}
.num{font-variant-numeric:tabular-nums}

body .container{width:100%;max-width:1200px;margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){
  body .container{padding-left:32px;padding-right:32px}
}

/* ============ 浮动 Dock 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  padding:14px 12px 0;
  pointer-events:none;
  transition:padding .25s ease;
}
.site-header.is-scrolled{padding-top:8px}
.dock{
  pointer-events:auto;
  width:min(1120px,100%);
  margin:0 auto;
  display:flex;align-items:center;gap:12px;
  padding:10px 14px;
  background:rgba(255,255,255,.86);
  border:1px solid var(--line);
  border-radius:22px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:0 6px 24px -14px rgba(8,38,31,.20);
  transition:padding .25s ease,box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled .dock{
  padding:7px 14px;
  background:rgba(255,255,255,.94);
  box-shadow:var(--shadow-dock);
}
.dock-logo{
  display:flex;align-items:center;gap:10px;flex:0 0 auto;
  font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--brand-800);
}
.logo-mark{
  display:grid;place-items:center;width:34px;height:34px;flex:0 0 auto;
  border-radius:11px;background-image:var(--grad-brand);
  color:#fff;font-size:16px;font-weight:700;
}
.dock-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto;min-width:0}
.dock-nav a{
  display:inline-flex;align-items:center;padding:9px 14px;border-radius:12px;
  font-size:15px;color:var(--ink-600);white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.dock-nav a:hover{background:var(--mint-100);color:var(--brand-700)}
.dock-nav a.active{background:var(--mint-100);color:var(--brand-700);font-weight:600}
.dock-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto}
.dock-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.dock-toggle span{display:block;width:17px;height:2px;border-radius:2px;background:var(--brand-800);transition:transform .2s ease,opacity .2s ease}
.dock-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.dock-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.dock-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.dock-mask{
  position:fixed;inset:0;z-index:65;background:rgba(8,38,31,.42);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.dock-mask.is-open{opacity:1;visibility:visible}
.dock-sheet{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;flex-direction:column;gap:4px;
  padding:20px 20px calc(26px + env(safe-area-inset-bottom));
  background:#fff;border-radius:26px 26px 0 0;
  box-shadow:0 -20px 50px -20px rgba(8,38,31,.45);
  transform:translateY(110%);
  transition:transform .28s ease;
}
.dock-sheet.is-open{transform:translateY(0)}
.dock-sheet a{
  display:flex;align-items:center;min-height:48px;
  padding:12px 16px;border-radius:14px;font-size:16px;color:var(--ink-900);
}
.dock-sheet a:hover,.dock-sheet a:focus-visible{background:var(--mint-100);color:var(--brand-700)}
.dock-sheet .sheet-cta{margin-top:8px}
@media (max-width:1023px){
  .dock-nav{display:none}
  .dock-toggle{display:flex}
}
@media (min-width:1024px){
  .dock-sheet,.dock-mask{display:none}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn .arrow{font-size:17px;line-height:1;transition:transform .18s ease-out}
.btn:hover .arrow{transform:translateX(4px)}
.btn-primary{background-image:var(--grad-action);color:#fff;box-shadow:0 10px 24px -12px rgba(228,85,31,.75)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 30px -12px rgba(228,85,31,.85)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:rgba(255,255,255,.92);border-color:var(--line);color:var(--brand-800)}
.btn-ghost:hover{transform:translateY(-1px);border-color:var(--mint-400);box-shadow:var(--shadow-card)}
.btn-outline{background:transparent;border-color:rgba(255,255,255,.46);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.14);transform:translateY(-1px)}
.btn-sm{padding:10px 16px;font-size:14px;border-radius:12px}
.btn-lg{padding:16px 30px;font-size:16px;border-radius:16px}
.btn[disabled]{opacity:.6;filter:saturate(.6);cursor:not-allowed}

/* ============ 标签 / 徽章 ============ */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:13px;font-weight:600;line-height:1.6;
  background:var(--mint-100);color:var(--brand-700);
  border:1px solid rgba(21,82,70,.18);
}
.pill-dark{background:rgba(127,216,196,.15);color:var(--mint-400);border-color:rgba(127,216,196,.36)}
.pill-amber{background:rgba(255,194,75,.16);color:#8A5A00;border-color:rgba(255,194,75,.4)}

/* ============ 主体 ============ */
main{padding-top:96px;padding-bottom:8px}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:6px 0 0;font-size:13px;color:var(--ink-400);
}
.crumbs a{color:var(--ink-600);border-bottom:1px solid transparent;transition:color .18s,border-color .18s}
.crumbs a:hover{color:var(--brand-700);border-color:var(--mint-400)}
.crumbs .sep{color:#C9C6BA}
.crumbs .current{max-width:48ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ink-400)}

/* 文章头部 */
.article-hero{
  position:relative;overflow:hidden;
  margin-top:16px;padding:34px 22px 30px;
  border-radius:var(--r-lg);
  background-image:var(--grad-brand);
  color:#fff;
  box-shadow:var(--shadow-card);
}
.article-hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.38;
}
.article-hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(135deg,rgba(15,61,52,.94) 0%,rgba(8,38,31,.82) 52%,rgba(8,38,31,.96) 100%);
}
.article-hero > *:not(.article-hero-bg){position:relative;z-index:2}
.hero-pills{display:flex;flex-wrap:wrap;gap:8px}
.article-hero h1{
  margin-top:16px;
  font-size:clamp(26px,3.6vw,42px);
  line-height:1.25;font-weight:700;letter-spacing:-.01em;
  color:#fff;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  margin-top:20px;font-size:13.5px;color:rgba(255,255,255,.74);
}
.article-meta .m-item{display:inline-flex;align-items:center;gap:7px}
.article-meta .dot{width:5px;height:5px;border-radius:50%;background:var(--mint-400);flex:0 0 auto}
@media (min-width:768px){
  .article-hero{padding:44px 40px 38px}
}

/* 文章栅格 */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);
  gap:28px;padding-top:32px;
}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:32px;padding-top:40px}
}
.article-main{
  min-width:0;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-card);
  padding:28px 22px;
}
@media (min-width:768px){
  .article-main{padding:44px 46px}
}

/* 正文排版 */
.article-body{
  max-width:760px;
  margin:0 auto;
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink-600);
}
.article-body > * + *{margin-top:1.2em}
.article-body p{margin:0}
.article-body h2{
  position:relative;margin:2.2em 0 0;padding-left:16px;
  font-size:clamp(20px,2.4vw,26px);line-height:1.35;font-weight:700;color:var(--ink-900);
  letter-spacing:-.01em;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;
  background-color:var(--action-500);
}
.article-body h3{margin:1.7em 0 0;font-size:19px;font-weight:600;color:var(--ink-900);line-height:1.5}
.article-body h4{margin:1.4em 0 0;font-size:17px;font-weight:600;color:var(--ink-900)}
.article-body ul,.article-body ol{margin:0;padding-left:1.35em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li + li{margin-top:.45em}
.article-body ul li::marker{color:var(--mint-400)}
.article-body ol li::marker{color:var(--brand-700);font-weight:600}
.article-body a{color:var(--brand-700);border-bottom:1px solid var(--mint-400);transition:color .18s,border-color .18s}
.article-body a:hover{color:var(--action-600);border-color:var(--action-500)}
.article-body strong{color:var(--ink-900);font-weight:600}
.article-body blockquote{
  margin:1.6em 0;padding:14px 20px;
  border-left:3px solid var(--brand-700);
  background-color:var(--mint-100);
  border-radius:0 14px 14px 0;
  color:var(--brand-800);
}
.article-body blockquote p + p{margin-top:.7em}
.article-body img{border-radius:18px;width:100%;height:auto;margin:1.6em 0}
.article-body figure{margin:1.6em 0}
.article-body figure img{margin:0}
.article-body figcaption{margin-top:10px;font-size:13.5px;color:var(--ink-400);text-align:center}
.article-body code{
  padding:1px 6px;border-radius:6px;
  background-color:#F2F0E9;border:1px solid var(--line);
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;
  color:var(--brand-800);
}
.article-body pre{
  margin:1.6em 0;padding:18px 20px;border-radius:16px;overflow-x:auto;
  background-color:#0F1D19;color:#DCEFE9;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;border:0;padding:0;color:inherit;font-size:inherit}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.6em 0}
.article-body th,.article-body td{padding:11px 12px;text-align:left;border-bottom:1px solid var(--line)}
.article-body th{background-color:var(--mint-100);color:var(--brand-800);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}

/* 空状态 */
.article-empty{
  max-width:560px;margin:8px auto;padding:36px 24px;text-align:center;
}
.article-empty .empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:18px;
  display:grid;place-items:center;
  background-color:var(--mint-100);color:var(--brand-700);
  font-size:24px;font-weight:700;
}
.article-empty h2{font-size:22px;font-weight:700;color:var(--ink-900);line-height:1.4}
.article-empty p{margin-top:12px;font-size:15.5px;color:var(--ink-600)}
.article-empty .btn{margin-top:22px}

/* 侧栏 */
.article-side{display:flex;flex-direction:column;gap:18px}
@media (min-width:1024px){
  .article-side{position:sticky;top:104px;align-self:start}
}
.side-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);padding:20px;box-shadow:var(--shadow-card);
}
.side-title{
  display:flex;align-items:center;gap:8px;
  font-size:15px;font-weight:700;color:var(--ink-900);margin-bottom:12px;
}
.side-title::before{content:"";width:6px;height:6px;border-radius:50%;background-color:var(--action-500)}
.side-list li + li{border-top:1px solid var(--line)}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;font-size:14.5px;color:var(--ink-600);
  transition:color .18s ease;
}
.side-list a:hover{color:var(--brand-700)}
.side-list a .arrow{color:var(--mint-400);transition:transform .18s ease}
.side-list a:hover .arrow{transform:translateX(3px)}
.side-note{font-size:14px;color:var(--ink-600);line-height:1.8}
.side-facts{display:flex;flex-direction:column;gap:0}
.side-facts div{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:10px 0;font-size:14px;color:var(--ink-600);border-bottom:1px solid var(--line);
}
.side-facts div:last-child{border-bottom:0}
.side-facts b{color:var(--ink-900);font-weight:600}

/* 相关推荐 */
.related-section{padding-top:44px}
.related-fold{border:0;margin:0}
.related-fold > summary{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:16px 22px;cursor:pointer;list-style:none;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  font-size:17px;font-weight:700;color:var(--ink-900);box-shadow:var(--shadow-card);
  transition:border-color .18s ease;
}
.related-fold > summary:hover{border-color:var(--mint-400)}
.related-fold > summary::-webkit-details-marker{display:none}
.related-fold > summary::after{
  content:"+";font-size:20px;line-height:1;color:var(--brand-700);
  transition:transform .2s ease;
}
.related-fold[open] > summary::after{transform:rotate(45deg)}
.related-grid{
  display:grid;grid-template-columns:1fr;gap:20px;margin-top:20px;
}
@media (min-width:641px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.related-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);border-color:#D6E9E2;box-shadow:0 2px 4px rgba(15,61,52,.07),0 22px 44px -20px rgba(15,61,52,.28)}
.card-cover{aspect-ratio:16/10;overflow:hidden;background-color:var(--mint-100)}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-cover img{transform:scale(1.03)}
.card-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-body h3{font-size:17px;font-weight:600;line-height:1.45;color:var(--ink-900)}
.card-body p{font-size:14.5px;color:var(--ink-600);line-height:1.75}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-top:auto;padding-top:6px;font-size:13px;color:var(--ink-400);
}
.card-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700)}
.card-link .arrow{transition:transform .18s ease}
.card:hover .card-link .arrow{transform:translateX(4px)}

/* CTA */
.article-cta{
  position:relative;overflow:hidden;margin-top:52px;
  border-radius:var(--r-lg);background-image:var(--grad-brand);
  color:#fff;padding:38px 24px;text-align:center;box-shadow:var(--shadow-card);
}
.article-cta::after{
  content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(127,216,196,.28),rgba(127,216,196,0) 70%);
}
.article-cta > *{position:relative;z-index:2}
.article-cta h2{font-size:clamp(22px,2.8vw,30px);font-weight:700;line-height:1.35}
.article-cta p{margin:12px auto 0;max-width:600px;font-size:15.5px;color:rgba(255,255,255,.76)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:24px}
.cta-hint{margin-top:16px;font-size:13px;color:rgba(255,255,255,.58)}
@media (min-width:768px){.article-cta{padding:52px 48px}}

/* 返回顶部 */
.to-top{
  position:fixed;right:16px;bottom:20px;z-index:64;
  width:46px;height:46px;border-radius:14px;
  display:grid;place-items:center;
  background-image:var(--grad-brand);color:#fff;font-size:18px;
  box-shadow:var(--shadow-dock);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
@media (min-width:1024px){.to-top{right:26px;bottom:28px}}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:64px;padding:56px 0 26px;
  background-image:var(--grad-brand);
  color:rgba(255,255,255,.72);
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-size:18px;font-weight:700;color:#fff;margin-bottom:14px;
}
.site-footer p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.72)}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.72);transition:color .18s ease}
.footer-links a:hover{color:var(--mint-400)}
.footer-form{display:flex;flex-direction:column;gap:11px}
.footer-form label{font-size:13px;color:rgba(255,255,255,.66);line-height:1.7}
.footer-form input{
  width:100%;padding:12px 14px;border-radius:12px;
  border:1px solid rgba(255,255,255,.24);
  background-color:rgba(255,255,255,.08);color:#fff;font-size:14.5px;
  outline:none;transition:border-color .18s ease,box-shadow .18s ease;
}
.footer-form input::placeholder{color:rgba(255,255,255,.45)}
.footer-form input:focus{border-color:var(--action-500);box-shadow:0 0 0 2px rgba(255,107,53,.34)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:rgba(255,255,255,.55);
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
    --deep-900:#08261F;
    --brand-800:#0F3D34;
    --brand-700:#155246;
    --mint-400:#7FD8C4;
    --mint-100:#E7F6F1;
    --action-500:#FF6B35;
    --action-600:#E4551F;
    --amber-400:#FFC24B;
    --sand-bg:#F6F4EE;
    --card:#FFFFFF;
    --line:#E3E1D8;
    --ink-900:#16211E;
    --ink-600:#5A6B66;
    --ink-400:#8A9995;
    --danger:#D64545;
    --radius-lg:24px;
    --radius-md:18px;
    --radius-sm:12px;
    --shadow-card:0 1px 2px rgba(15,61,52,.06), 0 14px 34px -16px rgba(15,61,52,.20);
    --shadow-dock:0 2px 6px rgba(8,38,31,.06), 0 18px 40px -18px rgba(8,38,31,.28);
    --grad-brand:linear-gradient(135deg,#0F3D34 0%,#155246 45%,#08261F 100%);
    --grad-action:linear-gradient(135deg,#FF6B35 0%,#FFC24B 100%);
  }

  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    color:var(--ink-900);
    background:var(--sand-bg);
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:inherit;text-decoration:none}
  button,input,textarea,select{font:inherit;color:inherit}
  ul{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  .sr-only{
    position:absolute;width:1px;height:1px;padding:0;margin:-1px;
    overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
  }
  :focus-visible{outline:2px solid var(--action-500);outline-offset:2px;border-radius:10px}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
  @media (min-width:768px){.container{padding:0 32px}}

  .arrow{display:inline-block;transition:transform .18s ease-out}

  /* ============ 浮动 Dock 导航 ============ */
  .site-dock{
    position:fixed;top:12px;left:50%;transform:translateX(-50%);
    width:min(1120px,calc(100% - 24px));z-index:80;
  }
  .dock-inner{
    display:flex;align-items:center;gap:16px;
    padding:12px 16px;border-radius:22px;
    background:rgba(255,255,255,.86);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    border:1px solid var(--line);
    box-shadow:var(--shadow-dock);
    transition:padding .22s ease, box-shadow .22s ease;
  }
  .site-dock.scrolled .dock-inner{
    padding:8px 16px;
    box-shadow:0 3px 10px rgba(8,38,31,.10), 0 24px 48px -20px rgba(8,38,31,.36);
  }
  .dock-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .logo-mark{
    width:38px;height:38px;border-radius:12px;
    display:grid;place-items:center;
    background:var(--grad-action);
    color:#31200A;font-weight:800;font-size:18px;
    box-shadow:0 6px 16px -6px rgba(228,85,31,.7);
  }
  .logo-text{
    font-size:16.5px;font-weight:700;letter-spacing:-.01em;
    color:var(--deep-900);white-space:nowrap;
  }
  .dock-nav{display:none;align-items:center;gap:4px}
  @media (min-width:1024px){.dock-nav{display:flex}}
  .dock-nav a{
    display:block;padding:9px 14px;border-radius:14px;
    font-size:15px;color:var(--ink-600);
    transition:background .18s ease,color .18s ease;
    white-space:nowrap;
  }
  .dock-nav a:hover{background:var(--mint-100);color:var(--brand-700)}
  .dock-nav a.active{background:var(--mint-100);color:var(--brand-700);font-weight:700}
  .dock-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
  .dock-search{display:none}
  @media (min-width:1280px){.dock-search{display:block}}
  .dock-search input{
    width:168px;padding:9px 14px;border-radius:999px;
    border:1px solid var(--line);background:#fff;
    font-size:14px;line-height:1.4;color:var(--ink-900);
    transition:border-color .18s ease,box-shadow .18s ease;
  }
  .dock-search input::placeholder{color:var(--ink-400)}
  .dock-search input:focus{
    outline:none;border-color:var(--action-500);
    box-shadow:0 0 0 3px rgba(255,107,53,.18);
  }
  .dock-toggle{
    display:grid;place-items:center;gap:4px;
    width:44px;height:44px;padding:0;
    border:1px solid var(--line);border-radius:14px;
    background:#fff;cursor:pointer;
  }
  @media (min-width:1024px){.dock-toggle{display:none}}
  .dock-toggle span{
    display:block;width:18px;height:2px;border-radius:2px;
    background:var(--brand-700);transition:transform .2s ease,opacity .2s ease;
  }
  .dock-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .dock-toggle.is-open span:nth-child(2){opacity:0}
  .dock-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

  .dock-mobile{
    position:fixed;left:12px;right:12px;bottom:0;z-index:79;
    background:#fff;border-radius:24px 24px 0 0;
    border:1px solid var(--line);border-bottom:none;
    padding:18px 18px calc(18px + env(safe-area-inset-bottom,0px));
    box-shadow:0 -18px 50px -20px rgba(8,38,31,.35);
    transform:translateY(115%);
    transition:transform .28s ease-out;
    max-height:78vh;overflow-y:auto;
  }
  .dock-mobile.open{transform:translateY(0)}
  @media (min-width:1024px){.dock-mobile{display:none}}
  .dock-mobile .mobile-title{
    font-size:13px;letter-spacing:.08em;color:var(--ink-400);
    text-transform:uppercase;margin-bottom:10px;
  }
  .dock-mobile a{
    display:flex;align-items:center;justify-content:space-between;
    min-height:48px;padding:12px 14px;border-radius:14px;
    font-size:16px;color:var(--ink-900);
    border:1px solid transparent;
  }
  .dock-mobile a:hover{background:var(--mint-100)}
  .dock-mobile a.active{
    background:var(--mint-100);color:var(--brand-700);font-weight:700;
    border-color:rgba(21,82,70,.18);
  }

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 24px;border-radius:14px;border:1px solid transparent;
    font-size:15px;font-weight:700;line-height:1.2;cursor:pointer;
    transition:transform .18s ease-out, box-shadow .18s ease-out, background .18s ease, color .18s ease, border-color .18s ease;
    white-space:nowrap;
  }
  .btn-primary{
    background:var(--grad-action);color:#31200A;
    box-shadow:0 10px 24px -12px rgba(228,85,31,.85);
  }
  .btn-primary:hover{
    transform:translateY(-1px);
    box-shadow:0 16px 32px -12px rgba(228,85,31,.9);
  }
  .btn-primary:hover .arrow{transform:translateX(4px)}
  .btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px -10px rgba(228,85,31,.8)}
  .btn-ghost{
    background:#fff;color:var(--brand-700);border-color:var(--line);
  }
  .btn-ghost:hover{
    transform:translateY(-1px);border-color:var(--mint-400);
    box-shadow:0 12px 26px -16px rgba(15,61,52,.5);
  }
  .btn-ghost:hover .arrow{transform:translateX(4px)}
  .btn-outline-light{
    background:transparent;color:#fff;border-color:rgba(255,255,255,.45);
  }
  .btn-outline-light:hover{
    background:rgba(255,255,255,.12);transform:translateY(-1px);
  }
  .btn-outline-light:hover .arrow{transform:translateX(4px)}
  .btn-sm{padding:10px 18px;font-size:14px;border-radius:12px}
  .btn:disabled,.btn[aria-disabled="true"]{opacity:.6;filter:saturate(.6);cursor:not-allowed}

  /* ============ Hero ============ */
  .page-hero{
    position:relative;overflow:hidden;color:#fff;
    background:var(--grad-brand);
    padding:126px 0 54px;
  }
  .page-hero::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background:
      radial-gradient(680px 300px at 88% 6%, rgba(127,216,196,.26), transparent 66%),
      radial-gradient(520px 260px at 4% 96%, rgba(255,107,53,.20), transparent 68%);
  }
  .page-hero .container{position:relative;z-index:2}
  .crumbs{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13.5px;color:rgba(255,255,255,.68);margin-bottom:20px;
  }
  .crumbs a{color:rgba(255,255,255,.86)}
  .crumbs a:hover{color:var(--mint-400)}
  .crumbs .sep{color:rgba(255,255,255,.38)}
  .crumbs .current{color:rgba(255,255,255,.62)}
  .hero-tag{
    display:inline-flex;align-items:center;gap:8px;
    padding:7px 15px;border-radius:999px;margin-bottom:18px;
    background:rgba(127,216,196,.16);
    border:1px solid rgba(127,216,196,.42);
    color:var(--mint-400);font-size:13.5px;font-weight:600;
  }
  .page-hero h1{
    font-size:clamp(30px,4.4vw,54px);
    line-height:1.15;font-weight:700;letter-spacing:-.01em;
    max-width:900px;
  }
  .page-hero .lead{
    margin-top:18px;font-size:17px;line-height:1.85;
    color:rgba(255,255,255,.78);max-width:660px;
  }
  .badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
  .badge-data{
    display:inline-flex;align-items:center;gap:8px;
    padding:9px 15px;border-radius:999px;
    background:var(--mint-100);color:var(--brand-700);
    border:1px solid rgba(21,82,70,.22);
    font-size:13.5px;font-weight:600;line-height:1.4;
  }
  .badge-data b{font-weight:800;font-variant-numeric:tabular-nums}
  .badge-data i{color:var(--action-600)}

  /* ============ 板块 ============ */
  .section{padding:64px 0}
  @media (min-width:768px){.section{padding:88px 0}}
  .section--white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .section-head{max-width:720px;margin-bottom:34px}
  .eyebrow{
    display:inline-block;font-size:13px;font-weight:700;letter-spacing:.1em;
    color:var(--action-600);margin-bottom:12px;
  }
  .section-head h2{
    font-size:clamp(24px,2.7vw,34px);line-height:1.3;font-weight:700;letter-spacing:-.01em;
  }
  .section-head p{margin-top:14px;font-size:16px;color:var(--ink-600)}

  /* ============ 入口分组卡片 ============ */
  .entry-grid{display:grid;gap:20px;grid-template-columns:1fr}
  @media (min-width:768px){.entry-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.entry-grid{grid-template-columns:repeat(4,1fr)}}
  @media (min-width:1024px){
    .entry-card--lg{grid-column:span 2;grid-row:span 2}
  }
  .entry-card{
    display:flex;flex-direction:column;gap:14px;
    padding:24px;background:var(--card);
    border:1px solid var(--line);border-radius:var(--radius-lg);
    box-shadow:var(--shadow-card);
    transition:transform .18s ease-out, box-shadow .18s ease-out, border-color .18s ease;
  }
  .entry-card:hover{
    transform:translateY(-2px);border-color:rgba(127,216,196,.75);
    box-shadow:0 2px 6px rgba(15,61,52,.08), 0 22px 46px -18px rgba(15,61,52,.30);
  }
  .entry-card:hover .entry-link .arrow{transform:translateX(4px)}
  .entry-card:hover .entry-cover img{transform:scale(1.03)}
  .entry-icon{
    width:46px;height:46px;border-radius:14px;
    display:grid;place-items:center;
    background:var(--mint-100);color:var(--brand-700);font-size:18px;
  }
  .entry-card--lg .entry-icon{background:var(--grad-brand);color:var(--mint-400)}
  .entry-flag{
    display:inline-flex;align-items:center;
    padding:5px 12px;border-radius:999px;
    background:rgba(255,107,53,.12);color:var(--action-600);
    font-size:12.5px;font-weight:700;letter-spacing:.02em;
    border:1px solid rgba(255,107,53,.24);
    align-self:flex-start;
  }
  .entry-card h3{font-size:19px;line-height:1.4;font-weight:600}
  .entry-card p{font-size:14.5px;line-height:1.75;color:var(--ink-600)}
  .entry-link{
    margin-top:auto;display:inline-flex;align-items:center;gap:6px;
    font-size:14px;font-weight:700;color:var(--brand-700);
  }
  .entry-cover{
    order:-1;
    border-radius:var(--radius-md);overflow:hidden;
    aspect-ratio:16/10;background:var(--mint-100);
  }
  .entry-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
  .entry-meta{
    display:flex;flex-wrap:wrap;gap:14px;
    font-size:13px;color:var(--ink-400);
  }
  .entry-meta span{display:inline-flex;align-items:center;gap:6px}
  .entry-meta i{color:var(--mint-400)}

  /* ============ 步骤 ============ */
  .steps{display:grid;gap:20px;grid-template-columns:1fr}
  @media (min-width:768px){.steps{grid-template-columns:repeat(3,1fr)}}
  .step{
    position:relative;background:#fff;border:1px solid var(--line);
    border-radius:var(--radius-md);padding:28px 24px;
    box-shadow:var(--shadow-card);
    transition:transform .18s ease-out, box-shadow .18s ease-out;
  }
  .step:hover{transform:translateY(-2px);box-shadow:0 2px 6px rgba(15,61,52,.08),0 20px 42px -18px rgba(15,61,52,.28)}
  .step-num{
    width:46px;height:46px;border-radius:999px;
    display:grid;place-items:center;margin-bottom:18px;
    background:var(--grad-brand);color:var(--mint-400);
    font-weight:800;font-size:15px;font-variant-numeric:tabular-nums;
    border:1px solid rgba(127,216,196,.35);
  }
  .step h3{font-size:18px;font-weight:600;line-height:1.4;margin-bottom:10px}
  .step p{font-size:14.5px;line-height:1.8;color:var(--ink-600)}

  /* ============ 图文分栏 ============ */
  .split{display:grid;gap:32px;align-items:center}
  @media (min-width:1024px){.split{grid-template-columns:1.05fr .95fr;gap:52px}}
  .split h2{font-size:clamp(24px,2.7vw,34px);line-height:1.3;font-weight:700;letter-spacing:-.01em;margin-bottom:16px}
  .split p{font-size:16px;color:var(--ink-600);margin-bottom:16px}
  .check-list{display:grid;gap:14px;margin:24px 0 26px}
  .check-list li{display:flex;gap:12px;font-size:15px;color:var(--ink-900);line-height:1.7}
  .check-list i{
    flex:0 0 auto;width:24px;height:24px;border-radius:999px;
    display:grid;place-items:center;margin-top:3px;
    background:var(--mint-100);color:var(--brand-700);font-size:12px;
  }
  .media-frame{
    position:relative;border-radius:var(--radius-lg);overflow:hidden;
    border:1px solid var(--line);box-shadow:var(--shadow-card);
    background:var(--mint-100);
  }
  .media-frame img{width:100%;aspect-ratio:16/11;object-fit:cover}
  .float-stat{
    position:absolute;left:18px;bottom:18px;right:18px;
    display:flex;gap:18px;flex-wrap:wrap;
    padding:14px 18px;border-radius:var(--radius-md);
    background:rgba(255,255,255,.92);
    backdrop-filter:blur(10px);
    border:1px solid var(--line);
  }
  .float-stat div{display:flex;flex-direction:column;line-height:1.3}
  .float-stat b{font-size:20px;font-weight:800;color:var(--brand-700);font-variant-numeric:tabular-nums}
  .float-stat span{font-size:12.5px;color:var(--ink-400)}

  /* ============ CTA 条 ============ */
  .cta-band{
    position:relative;overflow:hidden;
    background:var(--grad-brand);border-radius:var(--radius-lg);
    padding:44px 26px;color:#fff;text-align:center;
    box-shadow:0 24px 60px -28px rgba(8,38,31,.7);
  }
  @media (min-width:768px){.cta-band{padding:56px 48px}}
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background:radial-gradient(520px 240px at 82% 10%, rgba(255,194,75,.22), transparent 70%);
    pointer-events:none;
  }
  .cta-band > *{position:relative;z-index:2}
  .cta-band h2{font-size:clamp(23px,2.6vw,32px);line-height:1.3;font-weight:700}
  .cta-band p{margin:16px auto 0;max-width:620px;font-size:15.5px;color:rgba(255,255,255,.78)}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:28px}
  .cta-note{margin-top:18px;font-size:13px;color:rgba(255,255,255,.62);font-variant-numeric:tabular-nums}

  /* ============ FAQ ============ */
  .faq-wrap{max-width:880px}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
    margin-bottom:12px;overflow:hidden;
    transition:border-color .18s ease, box-shadow .18s ease;
  }
  .faq-item:hover{border-color:rgba(127,216,196,.8)}
  .faq-item[open]{box-shadow:var(--shadow-card)}
  .faq-item summary{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 22px;cursor:pointer;list-style:none;
    font-size:17px;font-weight:600;line-height:1.5;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{background:var(--mint-100)}
  .faq-icon{
    flex:0 0 auto;width:30px;height:30px;border-radius:999px;
    display:grid;place-items:center;
    background:var(--mint-100);color:var(--brand-700);
    font-size:15px;font-weight:700;
    transition:transform .22s ease-out, background .18s ease;
  }
  .faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--grad-action);color:#31200A}
  .faq-body{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--ink-600)}
  .faq-body ul{margin-top:10px;display:grid;gap:8px}
  .faq-body li{position:relative;padding-left:16px}
  .faq-body li::before{
    content:"";position:absolute;left:0;top:12px;
    width:5px;height:5px;border-radius:999px;background:var(--mint-400);
  }

  /* ============ 页脚 ============ */
  .site-footer{
    background:var(--grad-brand);color:rgba(255,255,255,.72);
    padding:64px 0 28px;margin-top:0;
  }
  .footer-grid{display:grid;gap:36px;grid-template-columns:1fr}
  @media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}}
  .footer-brand{
    display:flex;align-items:center;gap:10px;
    font-size:17px;font-weight:700;color:#fff;margin-bottom:16px;
  }
  .footer-brand .logo-mark{width:34px;height:34px;border-radius:10px;font-size:16px}
  .footer-grid p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72)}
  .footer-title{
    font-size:14px;font-weight:700;color:#fff;
    letter-spacing:.04em;margin-bottom:16px;
  }
  .footer-links{display:grid;gap:10px}
  .footer-links a{
    font-size:14px;color:rgba(255,255,255,.72);
    transition:color .18s ease;
  }
  .footer-links a:hover{color:var(--mint-400)}
  .footer-form{display:grid;gap:12px}
  .footer-form label{font-size:13.5px;color:rgba(255,255,255,.72);line-height:1.6}
  .footer-form input{
    width:100%;padding:12px 14px;border-radius:12px;
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.22);
    color:#fff;font-size:14px;
    transition:border-color .18s ease, box-shadow .18s ease;
  }
  .footer-form input::placeholder{color:rgba(255,255,255,.45)}
  .footer-form input:focus{
    outline:none;border-color:var(--action-500);
    box-shadow:0 0 0 3px rgba(255,107,53,.25);
  }
  .footer-bottom{
    margin-top:44px;padding-top:22px;
    border-top:1px solid rgba(255,255,255,.14);
    display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
    font-size:13px;color:rgba(255,255,255,.58);
  }

  .skip-link{
    position:absolute;left:-9999px;top:8px;z-index:200;
    background:#fff;color:var(--brand-700);padding:10px 16px;border-radius:12px;
  }
  .skip-link:focus{left:16px}

  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
  }

/* roulang page: category2 */
:root{
    --deep-900:#08261F;
    --brand-800:#0F3D34;
    --brand-700:#155246;
    --mint-400:#7FD8C4;
    --mint-100:#E7F6F1;
    --action-500:#FF6B35;
    --action-600:#E4551F;
    --amber-400:#FFC24B;
    --sand-bg:#F6F4EE;
    --card:#FFFFFF;
    --line:#E3E1D8;
    --ink-900:#16211E;
    --ink-600:#5A6B66;
    --ink-400:#8A9995;
    --grad-brand:linear-gradient(135deg,#0F3D34 0%,#155246 45%,#08261F 100%);
    --grad-action:linear-gradient(135deg,#FF6B35 0%,#FFC24B 100%);
    --r-lg:24px;
    --r-md:18px;
    --r-sm:12px;
    --shadow-card:0 1px 2px rgba(15,61,52,.06),0 14px 34px -16px rgba(15,61,52,.20);
    --shadow-dock:0 2px 6px rgba(15,61,52,.08),0 20px 44px -20px rgba(15,61,52,.32);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth;scroll-padding-top:120px}
  body{
    margin:0;
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    background:var(--sand-bg);
    color:var(--ink-900);
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button,input,textarea,select{font:inherit;color:inherit}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  :focus-visible{outline:2px solid var(--action-500);outline-offset:2px}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
  @media (min-width:768px){.container{padding:0 32px}}

  /* ---------- 浮动 Dock 导航 ---------- */
  .site-header{position:fixed;top:12px;left:0;right:0;z-index:90;display:flex;justify-content:center;pointer-events:none}
  .dock{
    pointer-events:auto;
    width:min(1120px,calc(100% - 24px));
    display:flex;align-items:center;gap:16px;
    padding:10px 14px;
    border-radius:22px;
    background:rgba(255,255,255,.86);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border:1px solid var(--line);
    box-shadow:var(--shadow-dock);
    transition:padding .28s ease,box-shadow .28s ease,background .28s ease;
  }
  .site-header.is-scrolled .dock{
    padding:6px 14px;
    background:rgba(255,255,255,.95);
    box-shadow:0 3px 8px rgba(15,61,52,.10),0 24px 50px -22px rgba(15,61,52,.40);
  }
  .dock-logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;letter-spacing:-.01em;color:var(--brand-800);flex:0 0 auto}
  .logo-mark{
    width:34px;height:34px;border-radius:11px;
    background:var(--grad-action);color:#fff;
    display:grid;place-items:center;font-size:16px;font-weight:700;line-height:1;
    box-shadow:0 8px 18px -10px rgba(228,85,31,.9);
  }
  .dock-nav{display:none;align-items:center;gap:4px;margin-left:auto}
  .dock-nav a{
    padding:9px 14px;border-radius:12px;font-size:14.5px;color:var(--ink-600);
    white-space:nowrap;transition:background .18s ease,color .18s ease;
  }
  .dock-nav a:hover{background:var(--mint-100);color:var(--brand-700)}
  .dock-nav a.active{background:var(--mint-100);color:var(--brand-700);font-weight:600}
  .dock-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
  .dock-toggle{
    width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
    background:#fff;color:var(--brand-700);display:grid;place-items:center;cursor:pointer;
    transition:background .18s ease,border-color .18s ease;
  }
  .dock-toggle:hover{background:var(--mint-100);border-color:var(--mint-400)}
  @media (min-width:1024px){
    .dock-nav{display:flex}
    .dock-actions{margin-left:0}
    .dock-toggle{display:none}
  }
  .mobile-menu{
    position:fixed;left:12px;right:12px;bottom:12px;z-index:95;
    background:#fff;border:1px solid var(--line);border-radius:24px 24px 20px 20px;
    box-shadow:0 30px 60px -24px rgba(15,61,52,.45);
    padding:14px;
    transform:translateY(calc(100% + 40px));
    opacity:0;visibility:hidden;
    transition:transform .32s cubic-bezier(.22,.8,.28,1),opacity .24s ease,visibility .24s;
  }
  .mobile-menu.is-open{transform:translateY(0);opacity:1;visibility:visible}
  .mobile-menu a{
    display:flex;align-items:center;justify-content:space-between;
    min-height:48px;padding:0 16px;border-radius:14px;
    font-size:15.5px;color:var(--brand-800);font-weight:500;
  }
  .mobile-menu a + a{margin-top:4px}
  .mobile-menu a.active,.mobile-menu a:hover{background:var(--mint-100);color:var(--brand-700);font-weight:600}
  .mobile-menu .menu-foot{margin-top:12px;padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-400);line-height:1.7}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border:1px solid transparent;border-radius:14px;font-weight:600;cursor:pointer;
    transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,border-color .18s ease-out,color .18s ease-out;
  }
  .btn .arrow{transition:transform .18s ease-out;display:inline-block}
  .btn:hover .arrow{transform:translateX(4px)}
  .btn-primary{background:var(--grad-action);color:#fff;box-shadow:0 10px 26px -14px rgba(228,85,31,.85)}
  .btn-primary:hover{transform:translateY(-1px);box-shadow:0 18px 34px -16px rgba(228,85,31,.95)}
  .btn-primary:active{transform:translateY(1px)}
  .btn-ghost{background:#fff;border-color:var(--line);color:var(--brand-700)}
  .btn-ghost:hover{transform:translateY(-1px);border-color:var(--mint-400);box-shadow:var(--shadow-card)}
  .btn-ghost:active{transform:translateY(1px)}
  .btn-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.34);color:#fff}
  .btn-light:hover{background:rgba(255,255,255,.2);transform:translateY(-1px)}
  .btn-lg{padding:15px 28px;font-size:16px}
  .btn-md{padding:12px 22px;font-size:15px}
  .btn-sm{padding:9px 16px;font-size:14px}
  .btn[disabled],.btn.is-disabled{opacity:.6;filter:saturate(60%);cursor:not-allowed;transform:none}
  .text-link{color:var(--brand-700);font-weight:600;display:inline-flex;align-items:center;gap:6px;border-bottom:1px solid transparent;transition:border-color .18s ease,color .18s ease}
  .text-link:hover{color:var(--action-600);border-color:var(--action-500)}

  /* ---------- 徽章 ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:8px;
    padding:8px 14px;border-radius:999px;
    background:var(--mint-100);border:1px solid rgba(21,82,70,.18);
    color:var(--brand-700);font-size:13.5px;font-weight:500;
  }
  .badge b{font-weight:700;font-variant-numeric:tabular-nums}
  .badge.on-dark{background:rgba(255,255,255,.10);border-color:rgba(127,216,196,.42);color:#E7F6F1}
  .badge-row{display:flex;flex-wrap:wrap;gap:10px}

  /* ---------- Hero ---------- */
  .page-hero{position:relative;overflow:hidden;background:var(--brand-800);padding:128px 0 68px;color:#fff}
  .page-hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;opacity:.24}
  .page-hero-mask{position:absolute;inset:0;background:linear-gradient(115deg,rgba(8,38,31,.94) 0%,rgba(15,61,52,.78) 48%,rgba(15,61,52,.38) 100%)}
  .page-hero .container{position:relative;z-index:2}
  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.62);margin-bottom:22px}
  .crumb a{color:rgba(255,255,255,.82);transition:color .18s ease}
  .crumb a:hover{color:var(--mint-400)}
  .crumb .sep{color:rgba(255,255,255,.36)}
  .crumb .now{color:rgba(255,255,255,.68)}
  .hero-inner{display:grid;gap:36px}
  @media (min-width:1024px){.hero-inner{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);align-items:center;gap:48px}}
  .page-hero h1{
    font-size:clamp(30px,4.4vw,48px);line-height:1.15;font-weight:700;letter-spacing:-.01em;color:#fff;
  }
  .page-hero .lede{margin-top:18px;font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.82);max-width:620px}
  .hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
  .hero-badges{margin-top:28px}
  .hero-panel{
    background:rgba(255,255,255,.10);
    border:1px solid rgba(255,255,255,.22);
    border-radius:var(--r-lg);
    padding:24px;
    -webkit-backdrop-filter:blur(8px);
    backdrop-filter:blur(8px);
    box-shadow:0 30px 60px -30px rgba(0,0,0,.6);
  }
  .hero-panel .panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.16)}
  .hero-panel .panel-title{font-size:14px;color:rgba(255,255,255,.7)}
  .dot-live{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:#BFF3E5}
  .dot-live i{width:8px;height:8px;border-radius:50%;background:var(--mint-400);box-shadow:0 0 0 4px rgba(127,216,196,.22)}
  .panel-rows{margin-top:6px}
  .panel-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 0;border-bottom:1px dashed rgba(255,255,255,.16);font-size:14.5px}
  .panel-row:last-child{border-bottom:0}
  .panel-row span{color:rgba(255,255,255,.68)}
  .panel-row strong{color:#fff;font-weight:600;font-variant-numeric:tabular-nums}

  /* ---------- 板块通用 ---------- */
  .section{padding:64px 0}
  @media (min-width:768px){.section{padding:88px 0}}
  .section-alt{background:#fff}
  .section-head{max-width:760px}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:600;letter-spacing:.06em;
    color:var(--brand-700);background:var(--mint-100);
    border:1px solid rgba(21,82,70,.16);border-radius:999px;padding:6px 14px;
  }
  .section-head h2{font-size:clamp(24px,3.2vw,34px);line-height:1.3;font-weight:700;letter-spacing:-.01em;margin-top:16px;color:var(--brand-800)}
  .section-head p{margin-top:14px;color:var(--ink-600);font-size:16px}

  /* ---------- 分类页二：左目录 + 右时间轴 ---------- */
  .cat-layout{display:grid;gap:28px}
  @media (min-width:1024px){
    .cat-layout{grid-template-columns:264px minmax(0,1fr);gap:52px;align-items:start}
  }
  .toc-chips{
    display:flex;gap:10px;overflow-x:auto;padding:4px 0 8px;
    scroll-snap-type:x mandatory;-ms-overflow-style:none;scrollbar-width:none;
  }
  .toc-chips::-webkit-scrollbar{display:none}
  .toc-chips a{
    flex:0 0 auto;scroll-snap-align:start;padding:9px 16px;border-radius:999px;
    background:#fff;border:1px solid var(--line);font-size:14px;color:var(--brand-700);white-space:nowrap;
    transition:border-color .18s ease,background .18s ease;
  }
  .toc-chips a:hover{border-color:var(--mint-400);background:var(--mint-100)}
  .toc-card{
    display:none;position:sticky;top:112px;
    background:#fff;border:1px solid var(--line);border-radius:22px;
    padding:22px;box-shadow:var(--shadow-card);
  }
  @media (min-width:1024px){
    .toc-card{display:block}
    .toc-chips{display:none}
  }
  .toc-card .toc-title{font-size:12.5px;letter-spacing:.1em;color:var(--ink-400);font-weight:600}
  .toc-card nav{margin-top:12px;display:flex;flex-direction:column;gap:2px}
  .toc-card nav a{
    display:flex;align-items:center;gap:10px;
    padding:10px 12px;border-radius:12px;font-size:14.5px;color:var(--ink-600);
    transition:background .18s ease,color .18s ease;
  }
  .toc-card nav a i{font-size:11px;color:var(--mint-400)}
  .toc-card nav a:hover{background:var(--mint-100);color:var(--brand-700)}
  .toc-note{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-400);line-height:1.75}

  .timeline{position:relative}
  .tl-item{position:relative;padding-left:60px;padding-bottom:44px}
  .tl-item:last-child{padding-bottom:0}
  .tl-item::before{
    content:"";position:absolute;left:19px;top:44px;bottom:0;width:2px;
    background:linear-gradient(180deg,rgba(127,216,196,.95) 0%,rgba(227,225,216,.9) 100%);
  }
  .tl-item:last-child::before{display:none}
  .tl-num{
    position:absolute;left:0;top:4px;width:40px;height:40px;border-radius:50%;
    background:var(--grad-brand);color:#fff;border:2px solid #fff;
    display:grid;place-items:center;font-size:13.5px;font-weight:700;
    font-variant-numeric:tabular-nums;box-shadow:0 10px 22px -12px rgba(15,61,52,.95);
  }
  .tl-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    box-shadow:var(--shadow-card);overflow:hidden;
  }
  .tl-body{display:grid;gap:0}
  @media (min-width:768px){
    .tl-body{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);align-items:stretch}
    .tl-item.reverse .tl-body{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr)}
    .tl-item.reverse .tl-text{order:2}
    .tl-item.reverse .tl-media{order:1}
  }
  .tl-text{padding:26px 26px 22px}
  .tl-text h3{font-size:19px;line-height:1.45;font-weight:600;color:var(--brand-800)}
  .tl-text p{margin-top:12px;color:var(--ink-600);font-size:15.5px;line-height:1.85}
  .tl-text .badge-row{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line)}
  .tl-media{position:relative;min-height:200px;background:var(--mint-100)}
  .tl-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}
  @media (min-width:768px){.tl-media img{aspect-ratio:auto;min-height:100%}}

  /* ---------- 品牌渐变数据带 ---------- */
  .data-band{
    background:var(--grad-brand);color:#fff;border-radius:28px;
    padding:36px 26px;display:grid;gap:26px;
    box-shadow:0 30px 60px -34px rgba(15,61,52,.75);
  }
  @media (min-width:768px){.data-band{grid-template-columns:repeat(2,1fr);padding:42px 36px}}
  @media (min-width:1024px){.data-band{grid-template-columns:repeat(4,1fr);padding:46px 44px;gap:32px}}
  .data-cell{border-left:2px solid rgba(127,216,196,.5);padding-left:18px}
  .data-cell .num{font-size:clamp(26px,3vw,34px);font-weight:700;color:var(--amber-400);font-variant-numeric:tabular-nums;line-height:1.2}
  .data-cell .label{margin-top:6px;font-size:14px;color:rgba(255,255,255,.78)}
  .data-cell .sub{margin-top:4px;font-size:12.5px;color:rgba(255,255,255,.52)}

  /* ---------- 系统要求 ---------- */
  .spec-grid{display:grid;gap:14px;margin-top:32px}
  @media (min-width:640px){.spec-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.spec-grid{grid-template-columns:repeat(4,1fr)}}
  .spec-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
    padding:22px;box-shadow:var(--shadow-card);
    transition:transform .18s ease-out,box-shadow .18s ease-out;
  }
  .spec-item:hover{transform:translateY(-2px);box-shadow:0 2px 4px rgba(15,61,52,.08),0 22px 44px -22px rgba(15,61,52,.34)}
  .spec-icon{
    width:40px;height:40px;border-radius:12px;background:var(--mint-100);
    color:var(--brand-700);display:grid;place-items:center;font-size:16px;
  }
  .spec-item dt{margin-top:14px;font-size:15.5px;font-weight:600;color:var(--brand-800)}
  .spec-item dd{margin:8px 0 0;font-size:14px;color:var(--ink-600);line-height:1.8}

  /* ---------- 下载收口 ---------- */
  .download-block{
    background:var(--grad-brand);color:#fff;border-radius:28px;
    padding:44px 26px;text-align:center;
    box-shadow:0 34px 70px -38px rgba(15,61,52,.85);
  }
  @media (min-width:768px){.download-block{padding:56px 48px}}
  .download-block h2{font-size:clamp(23px,3vw,30px);font-weight:700;line-height:1.35;color:#fff}
  .download-block p{margin:14px auto 0;max-width:640px;color:rgba(255,255,255,.78);font-size:15.5px}
  .download-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:28px}
  .download-meta{margin-top:20px;font-size:13px;color:rgba(255,255,255,.6);font-variant-numeric:tabular-nums}

  /* ---------- FAQ ---------- */
  .faq-list{margin-top:32px}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:18px;
    margin-bottom:12px;overflow:hidden;
    transition:box-shadow .18s ease-out,border-color .18s ease-out;
  }
  .faq-item:hover{box-shadow:var(--shadow-card);border-color:rgba(127,216,196,.9)}
  .faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 22px;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary h3{font-size:16.5px;font-weight:600;color:var(--brand-800);line-height:1.5}
  .faq-icon{
    flex:0 0 auto;width:28px;height:28px;border-radius:50%;
    background:var(--mint-100);color:var(--brand-700);
    display:grid;place-items:center;font-size:13px;
    transition:transform .25s ease;
  }
  .faq-item[open] .faq-icon{transform:rotate(180deg)}
  .faq-body{padding:0 22px 22px;color:var(--ink-600);font-size:15px;line-height:1.85}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--grad-brand);color:rgba(255,255,255,.72);padding:56px 0 22px;margin-top:8px}
  .footer-grid{display:grid;gap:34px}
  @media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px}}
  .footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px}
  .site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66)}
  .footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
  .footer-links li{margin-bottom:10px}
  .footer-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color .18s ease}
  .footer-links a:hover{color:var(--mint-400)}
  .footer-form label{display:block;font-size:13px;color:rgba(255,255,255,.66);margin-bottom:10px;line-height:1.7}
  .footer-form input{
    width:100%;padding:12px 14px;border-radius:14px;
    border:1px solid rgba(255,255,255,.24);
    background:rgba(255,255,255,.08);color:#fff;font-size:14px;
    transition:border-color .18s ease,background .18s ease;
  }
  .footer-form input::placeholder{color:rgba(255,255,255,.45)}
  .footer-form input:focus{outline:none;border-color:var(--action-500);background:rgba(255,255,255,.14);box-shadow:0 0 0 2px rgba(255,107,53,.5)}
  .footer-form .btn{margin-top:12px;width:100%}
  .footer-bottom{
    margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
    display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;
    font-size:13px;color:rgba(255,255,255,.55);
  }
  @media (max-width:520px){
    .page-hero{padding:112px 0 56px}
    .tl-item{padding-left:0;padding-bottom:34px}
    .tl-item::before{display:none}
    .tl-num{position:static;margin-bottom:14px}
    .tl-text{padding:22px 20px 18px}
    .faq-item summary{padding:18px}
    .btn-lg{width:100%}
  }
  .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* roulang page: category3 */
:root{
  --deep-900:#08261F;
  --brand-800:#0F3D34;
  --brand-700:#155246;
  --mint-400:#7FD8C4;
  --mint-100:#E7F6F1;
  --action-500:#FF6B35;
  --action-600:#E4551F;
  --amber-400:#FFC24B;
  --sand-bg:#F6F4EE;
  --card:#FFFFFF;
  --line:#E3E1D8;
  --ink-900:#16211E;
  --ink-600:#5A6B66;
  --ink-400:#8A9995;
  --grad-brand:linear-gradient(135deg,#0F3D34 0%,#155246 45%,#08261F 100%);
  --grad-action:linear-gradient(135deg,#FF6B35 0%,#FFC24B 100%);
  --shadow-card:0 1px 2px rgba(15,61,52,.06), 0 14px 34px -16px rgba(15,61,52,.20);
  --shadow-card-hover:0 2px 4px rgba(15,61,52,.08), 0 22px 46px -18px rgba(15,61,52,.28);
  --shadow-dock:0 2px 6px rgba(15,61,52,.08), 0 20px 44px -20px rgba(15,61,52,.30);
  --r-xl:24px;
  --r-md:18px;
  --r-sm:14px;
  --r-xs:12px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding:104px 0 0;
  background:var(--sand-bg);
  color:var(--ink-900);
  font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--action-500);outline-offset:2px;border-radius:8px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 浮动 Dock 导航 ============ */
.dock-wrap{
  position:fixed;top:14px;left:0;right:0;z-index:80;
  display:flex;justify-content:center;
  padding:0 12px;pointer-events:none;
}
.dock{
  pointer-events:auto;
  width:min(1120px,100%);
  display:flex;align-items:center;gap:18px;
  padding:10px 14px 10px 16px;
  border-radius:22px;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--shadow-dock);
  transition:padding .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.dock.is-scrolled{padding:6px 14px 6px 16px;box-shadow:0 4px 10px rgba(15,61,52,.10),0 26px 52px -22px rgba(15,61,52,.38);}
.dock-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;font-weight:700;font-size:16px;letter-spacing:-.01em;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad-brand);
  color:#fff;font-size:17px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px -8px rgba(15,61,52,.6);
  flex:0 0 auto;
}
.logo-text{white-space:nowrap;}
.dock-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.dock-nav a{
  display:inline-flex;align-items:center;
  padding:9px 14px;border-radius:12px;
  font-size:14.5px;color:var(--ink-600);font-weight:500;
  white-space:nowrap;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.dock-nav a:hover{background:var(--mint-100);color:var(--brand-700);}
.dock-nav a.active{background:var(--mint-100);color:var(--brand-700);font-weight:600;}
.dock-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.dock-toggle{
  display:none;
  width:44px;height:44px;border-radius:14px;
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;
  cursor:pointer;
}
.dock-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--brand-700);border-radius:2px;transition:background .2s ease;}
.dock-toggle span::before,.dock-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-700);border-radius:2px;transition:transform .22s ease;
}
.dock-toggle span::before{top:-6px;}
.dock-toggle span::after{top:6px;}
.dock-toggle[aria-expanded="true"] span{background:transparent;}
.dock-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.dock-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  border-radius:14px;border:1px solid transparent;
  font-size:15px;font-weight:600;
  padding:13px 24px;min-height:48px;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn .arrow{display:inline-block;transition:transform .18s ease;font-weight:500;}
.btn:hover .arrow{transform:translateX(4px);}
.btn:active{transform:translateY(1px);}
.btn-primary{
  background:var(--grad-action);color:#fff;
  box-shadow:0 10px 24px -12px rgba(228,85,31,.85);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 30px -12px rgba(228,85,31,.95);}
.btn-ghost{
  background:#fff;color:var(--brand-700);
  border-color:var(--line);
  box-shadow:0 1px 2px rgba(15,61,52,.05);
}
.btn-ghost:hover{transform:translateY(-1px);border-color:var(--mint-400);box-shadow:var(--shadow-card);}
.btn-dark{background:var(--brand-800);color:#fff;}
.btn-dark:hover{transform:translateY(-1px);background:var(--deep-900);}
.btn-sm{padding:9px 16px;font-size:14px;min-height:40px;border-radius:12px;}
.btn-block{width:100%;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:999px;
  background:var(--mint-100);color:var(--brand-700);
  border:1px solid rgba(21,82,70,.16);
  font-size:13.5px;line-height:1.5;
}
.badge strong{font-weight:700;font-variant-numeric:tabular-nums;}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:12.5px;color:var(--ink-600);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--action-600);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--action-500);}

/* ============ Hero ============ */
.page-hero{position:relative;padding:8px 0 44px;overflow:hidden;}
.hero-band{height:6px;width:170px;border-radius:999px;background:var(--grad-brand);margin-bottom:30px;}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-100px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(127,216,196,.42),rgba(127,216,196,0) 68%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.page-hero h1{
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.16;
  font-weight:700;
  letter-spacing:-.01em;
  max-width:820px;
  margin-top:16px;
}
.hero-lead{
  margin-top:18px;font-size:17px;color:var(--ink-600);
  max-width:660px;
}
.hero-badges{margin-top:26px;}

/* ============ 通用板块 ============ */
.section{padding:64px 0;}
.section-tight{padding:44px 0;}
.section-head{max-width:720px;margin-bottom:32px;}
.section-head h2{
  font-size:clamp(24px,3vw,32px);line-height:1.3;font-weight:700;letter-spacing:-.01em;
  margin-top:12px;
}
.section-head p{margin-top:12px;color:var(--ink-600);font-size:16px;}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ============ 快速排查三步 ============ */
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.step-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 22px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:50%;
  background:var(--grad-brand);color:#fff;
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
  margin-bottom:14px;
}
.step-card h3{font-size:18px;font-weight:600;line-height:1.4;}
.step-card p{margin-top:8px;font-size:14.5px;color:var(--ink-600);line-height:1.8;}

/* ============ FAQ 双栏 ============ */
.faq-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:44px;align-items:start;}
.faq-aside{position:relative;}
.sticky-inner{position:sticky;top:112px;}
.aside-title{
  font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--ink-400);
  text-transform:uppercase;margin-bottom:14px;
}
.chip-list{display:flex;flex-direction:column;gap:8px;}
.chip{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:11px 14px;border-radius:var(--r-xs);
  background:#fff;border:1px solid var(--line);
  font-size:14.5px;color:var(--ink-600);font-weight:500;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.chip::after{content:"›";color:var(--ink-400);transition:transform .18s ease,color .18s ease;}
.chip:hover{background:var(--mint-100);color:var(--brand-700);border-color:rgba(21,82,70,.2);transform:translateX(2px);}
.chip:hover::after{transform:translateX(3px);color:var(--brand-700);}
.aside-note{
  margin-top:20px;padding:18px;border-radius:var(--r-md);
  background:var(--grad-brand);color:rgba(255,255,255,.86);
  font-size:14px;line-height:1.75;
}
.aside-note strong{display:block;color:#fff;font-size:15px;margin-bottom:6px;}
.aside-note a{color:var(--mint-400);font-weight:600;}

.faq-group{margin-bottom:36px;scroll-margin-top:120px;}
.faq-group h2{
  font-size:22px;font-weight:700;line-height:1.35;
  display:flex;align-items:center;gap:10px;
  padding-bottom:12px;margin-bottom:14px;
  border-bottom:1px solid var(--line);
}
.faq-group h2 .dot{width:10px;height:10px;border-radius:50%;background:var(--action-500);flex:0 0 auto;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:0 1px 2px rgba(15,61,52,.05);
  overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item:hover{box-shadow:var(--shadow-card);}
.faq-item[open]{border-color:rgba(21,82,70,.22);box-shadow:var(--shadow-card);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:flex-start;gap:16px;
  padding:18px 20px;
  min-height:56px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary h3{
  flex:1;font-size:17px;font-weight:600;line-height:1.5;
  padding-top:2px;
}
.faq-icon{
  position:relative;width:28px;height:28px;border-radius:50%;
  background:var(--mint-100);flex:0 0 auto;margin-top:2px;
  transition:transform .25s ease,background .25s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-700);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:12px;height:2px;}
.faq-icon::after{width:2px;height:12px;transition:transform .25s ease;}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--action-500);}
.faq-item[open] .faq-icon::before,.faq-item[open] .faq-icon::after{background:#fff;}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);}
.faq-body{padding:0 20px 20px 64px;color:var(--ink-600);font-size:15.5px;line-height:1.85;}
.faq-body p + p{margin-top:10px;}
.faq-body .hint{
  margin-top:12px;display:inline-block;
  padding:8px 14px;border-radius:var(--r-xs);
  background:var(--mint-100);color:var(--brand-700);
  font-size:13.5px;line-height:1.7;
}

/* ============ 咨询表单 ============ */
.contact-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.contact-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:48px;align-items:start;}
.contact-side h2{font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.3;margin-top:12px;}
.contact-side p{margin-top:14px;color:var(--ink-600);}
.contact-points{margin-top:24px;display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line);}
.contact-points li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;border-bottom:1px solid var(--line);
  font-size:14.5px;color:var(--ink-600);
}
.contact-points li b{color:var(--ink-900);font-weight:600;display:block;font-size:15px;}
.pt-ico{
  width:32px;height:32px;border-radius:10px;flex:0 0 auto;
  background:var(--mint-100);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;
}
.form-card{
  background:var(--sand-bg);border:1px solid var(--line);
  border-radius:var(--r-xl);padding:28px;box-shadow:var(--shadow-card);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--ink-600);margin-bottom:7px;font-weight:500;}
.field input,.field textarea,.field select{
  width:100%;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;
  padding:12px 14px;font-size:15px;line-height:1.6;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{min-height:132px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-400);}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--action-500);
  box-shadow:0 0 0 2px rgba(255,107,53,.9);
}
.form-tip{font-size:13px;color:var(--ink-400);line-height:1.7;margin-top:12px;}
.form-actions{margin-top:20px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;}

/* ============ 返回入口卡片 ============ */
.back-card{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:0;overflow:hidden;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-xl);box-shadow:var(--shadow-card);
}
.back-media{position:relative;min-height:280px;}
.back-media img{width:100%;height:100%;object-fit:cover;}
.back-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(15,61,52,.62),rgba(8,38,31,.28));
}
.back-body{padding:36px 34px;display:flex;flex-direction:column;justify-content:center;}
.back-body h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.35;margin-top:12px;}
.back-body p{margin-top:14px;color:var(--ink-600);font-size:15.5px;}
.back-actions{margin-top:24px;display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:64px;
  background:var(--grad-brand);
  color:rgba(255,255,255,.72);
  padding:60px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px;}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-weight:700;font-size:17px;margin-bottom:14px;
}
.footer-brand .logo-mark{background:rgba(255,255,255,.14);box-shadow:none;}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--mint-400);}
.footer-form label{display:block;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:10px;line-height:1.7;}
.footer-form input{
  width:100%;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.08);color:#fff;
  padding:12px 14px;font-size:14.5px;margin-bottom:12px;
}
.footer-form input::placeholder{color:rgba(255,255,255,.45);}
.footer-form input:focus{outline:none;border-color:var(--mint-400);box-shadow:0 0 0 2px rgba(127,216,196,.6);}
.footer-bottom{
  margin-top:44px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .dock-nav{gap:2px;}
  .dock-nav a{padding:9px 10px;font-size:14px;}
  .faq-layout{grid-template-columns:210px minmax(0,1fr);gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .contact-grid{grid-template-columns:1fr;gap:32px;}
}
@media (max-width:900px){
  body{padding-top:92px;}
  .dock-toggle{display:inline-flex;}
  .dock-nav{
    position:fixed;left:0;right:0;bottom:0;
    flex-direction:column;align-items:stretch;gap:6px;
    background:rgba(255,255,255,.98);
    border:1px solid var(--line);border-bottom:none;
    border-radius:24px 24px 0 0;
    padding:18px 16px 26px;
    box-shadow:0 -18px 44px -22px rgba(15,61,52,.35);
    transform:translateY(115%);
    transition:transform .3s ease;
    z-index:90;
    margin-left:0;
  }
  .dock-nav.open{transform:translateY(0);}
  .dock-nav a{
    min-height:48px;justify-content:flex-start;
    padding:0 16px;border-radius:14px;font-size:16px;
  }
  .dock-cta{display:none;}
  .faq-layout{grid-template-columns:1fr;gap:24px;}
  .sticky-inner{position:static;}
  .chip-list{flex-direction:row;overflow-x:auto;gap:10px;padding-bottom:6px;scroll-snap-type:x mandatory;}
  .chip{flex:0 0 auto;scroll-snap-align:start;}
  .chip::after{display:none;}
  .steps-grid{grid-template-columns:1fr;}
  .back-card{grid-template-columns:1fr;}
  .back-media{min-height:200px;}
  .faq-body{padding-left:20px;}
}
@media (max-width:768px){
  .section{padding:48px 0;}
  .page-hero{padding-bottom:32px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .form-row{grid-template-columns:1fr;}
  .form-card{padding:22px;}
  .back-body{padding:26px 22px;}
}
@media (max-width:520px){
  body{font-size:15.5px;padding-top:88px;}
  .logo-text{font-size:15px;}
  .section-head h2{font-size:22px;}
  .faq-item summary{padding:16px;gap:12px;}
  .faq-item summary h3{font-size:16px;}
  .btn{width:100%;}
  .back-actions .btn,.form-actions .btn{width:100%;}
}