/* roulang page: index */
/* ================= 设计变量 ================= */
:root{
  --ink-900:#0A0D14;
  --ink-800:#121826;
  --ink-700:#1B2231;
  --paper:#FFFFFF;
  --paper-2:#F4F6F8;
  --line:#E4E8EF;
  --primary:#14E0B4;
  --primary-ink:#009B7D;
  --primary-deep:#06231D;
  --accent:#FF3E7F;
  --highlight:#FFD84D;
  --text-d:#E8EDF5;
  --text-d-2:#93A0B4;
  --text-l:#1A2030;
  --text-l-2:#5A6478;
  --radius-card:16px;
  --radius-panel:24px;
  --radius-btn:12px;
  --shadow-card:0 6px 20px rgba(16,24,40,.06);
  --shadow-panel:0 18px 44px rgba(0,0,0,.45);
  --shadow-primary:0 10px 26px rgba(20,224,180,.28);
  --container:1200px;
}

/* ================= 基础重置 ================= */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text-l);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
table{border-collapse:collapse;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.tnum{font-variant-numeric:tabular-nums;}

/* ================= 容器与板块 ================= */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}
.section{padding:56px 0;}
@media (min-width:640px){.section{padding:72px 0;}}
@media (min-width:1024px){.section{padding:104px 0;}}
.section-soft{background:var(--paper-2);}
.section-dark{background:var(--ink-900);color:var(--text-d);}

.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:32px;}
.section-head h2{font-size:clamp(22px,3vw,34px);font-weight:700;line-height:1.3;letter-spacing:-.3px;}
.section-sub{margin-top:10px;font-size:15px;color:var(--text-l-2);max-width:640px;}
.section-dark .section-sub{color:var(--text-d-2);}
.section-dark .section-head h2{color:var(--text-d);}

.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--primary-ink);font-weight:600;font-size:15px;}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(3px);}
.section-dark .link-arrow{color:var(--primary);}

/* ================= 按钮体系 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;line-height:1;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--primary);color:var(--primary-deep);}
.btn-primary:hover{background:#22e9bd;transform:translateY(-2px);box-shadow:var(--shadow-primary);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--text-d);border:1px solid rgba(20,224,180,.4);}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.btn-outline{background:transparent;color:var(--primary-ink);border:1px solid rgba(0,155,125,.4);}
.btn-outline:hover{border-color:var(--primary-ink);transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.btn-group{display:flex;flex-wrap:wrap;gap:12px;}

/* ================= 徽章 ================= */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:999px;font-size:13px;font-weight:600;line-height:1;
}
.badge-soft{background:rgba(20,224,180,.12);color:var(--primary-ink);}
.badge-dark{background:rgba(20,224,180,.08);border:1px solid rgba(20,224,180,.3);color:var(--primary);}
.badge-accent{background:rgba(255,62,127,.12);color:var(--accent);}
.badge-new{background:var(--highlight);color:#3A2C00;}

/* ================= 顶部导航 ================= */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,13,20,.94);
  border-bottom:1px solid rgba(228,232,239,.08);
  transition:background-color .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(10,13,20,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom-color:rgba(228,232,239,.12);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:30px;height:30px;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:3px;
}
.brand-mark span{border:2px solid var(--primary);border-radius:3px;display:block;}
.brand-mark span:nth-child(4){background:var(--primary);border-color:var(--primary);}
.brand-name{font-size:18px;font-weight:800;color:var(--text-d);letter-spacing:.2px;}
.main-nav{display:none;align-items:center;gap:26px;}
@media (min-width:1024px){.main-nav{display:flex;}}
.main-nav a{
  position:relative;font-size:15px;font-weight:600;color:var(--text-d-2);
  padding:6px 0;transition:color .18s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;bottom:0;width:0;height:2px;border-radius:2px;
  background:var(--primary);transform:translateX(-50%);transition:width .22s ease;
}
.main-nav a:hover{color:var(--text-d);}
.main-nav a:hover::after{width:60%;}
.main-nav a.active{color:var(--primary);}
.main-nav a.active::after{width:60%;}
.header-cta{display:flex;align-items:center;gap:12px;}
.header-cta .btn-primary{display:none;}
@media (min-width:1024px){.header-cta .btn-primary{display:inline-flex;}}
.hamburger{
  width:44px;height:44px;border-radius:12px;border:1px solid rgba(228,232,239,.16);
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
@media (min-width:1024px){.hamburger{display:none;}}
.hamburger span{width:18px;height:2px;background:var(--text-d);border-radius:2px;display:block;}

/* 移动端抽屉 */
.mobile-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:90;
}
.mobile-mask.show{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;z-index:100;
  background:var(--ink-800);color:var(--text-d);
  transform:translateX(102%);transition:transform .28s ease;
  display:flex;flex-direction:column;padding:24px 22px calc(24px + env(safe-area-inset-bottom));
  overflow-y:auto;
}
.nav-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid rgba(228,232,239,.1);}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid rgba(228,232,239,.16);font-size:16px;}
.drawer-nav{display:flex;flex-direction:column;margin:10px 0 0;}
.drawer-nav a{padding:15px 4px;font-size:16px;font-weight:600;border-bottom:1px solid rgba(228,232,239,.08);color:var(--text-d-2);}
.drawer-nav a.active{color:var(--primary);}
.drawer-cta{margin-top:22px;}
.drawer-note{margin-top:auto;padding-top:22px;font-size:12px;color:var(--text-d-2);line-height:1.7;}

/* ================= Hero ================= */
.hero{position:relative;background:var(--ink-900);color:var(--text-d);overflow:hidden;}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.3;}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--ink-900) 0%,rgba(10,13,20,.9) 46%,rgba(10,13,20,.5) 100%);}
.grid-dots{
  position:absolute;inset:0;pointer-events:none;opacity:.08;
  background-image:radial-gradient(rgba(20,224,180,1) 1px,transparent 1px);
  background-size:30px 30px;
}
.hero-inner{position:relative;z-index:2;display:grid;gap:36px;padding:52px 0 60px;}
@media (min-width:1024px){
  .hero-inner{grid-template-columns:58% 42%;align-items:center;gap:40px;min-height:600px;padding:64px 0 80px;}
}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px;}
.hero h1{
  font-size:clamp(28px,4.8vw,52px);font-weight:800;line-height:1.18;letter-spacing:-.5px;color:#fff;
}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:var(--text-d-2);max-width:560px;}
.hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-note{margin-top:18px;font-size:13px;color:var(--text-d-2);}
.hero-visual{display:flex;justify-content:center;position:relative;}
.phone{
  position:relative;width:min(290px,80%);aspect-ratio:9/19.5;border-radius:24px;overflow:hidden;
  border:1px solid rgba(20,224,180,.24);
  box-shadow:var(--shadow-panel);
  background:linear-gradient(160deg,rgba(20,224,180,.16),rgba(255,62,127,.12));
}
.phone img{width:100%;height:100%;object-fit:cover;}
.phone-caption{
  position:absolute;left:50%;transform:translateX(-50%);bottom:18px;width:230px;
  background:rgba(18,24,38,.94);border:1px solid rgba(20,224,180,.2);border-radius:14px;
  padding:12px 14px;display:flex;align-items:center;gap:10px;
}
.phone-caption .score{font-size:20px;font-weight:800;color:var(--highlight);font-variant-numeric:tabular-nums;}
.phone-caption .txt{font-size:12px;color:var(--text-d-2);line-height:1.5;}

/* ================= 步骤条 ================= */
.steps{display:grid;gap:20px;}
@media (min-width:640px){.steps{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);gap:24px;}}
.step{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 22px;box-shadow:var(--shadow-card);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-3px);border-color:rgba(0,155,125,.35);box-shadow:0 12px 28px rgba(16,24,40,.09);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:999px;
  border:2px solid var(--primary-ink);color:var(--primary-ink);font-size:14px;font-weight:800;
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.step h3{font-size:18px;font-weight:700;margin-bottom:8px;}
.step p{font-size:14px;line-height:1.75;color:var(--text-l-2);}

/* ================= 交错图文 ================= */
.split{display:grid;gap:28px;margin-top:56px;align-items:center;}
@media (min-width:1024px){
  .split{grid-template-columns:1fr 1fr;gap:48px;margin-top:72px;}
  .split.reverse .split-media{order:2;}
}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);border:1px solid var(--line);}
.split-text h3{font-size:clamp(20px,2.4vw,26px);font-weight:700;margin-bottom:14px;}
.split-text p{font-size:15px;color:var(--text-l-2);margin-bottom:16px;}
.tick-list li{position:relative;padding-left:26px;font-size:15px;line-height:1.85;margin-bottom:10px;color:var(--text-l);}
.tick-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:9px;height:9px;border-radius:3px;
  background:linear-gradient(135deg,var(--primary),var(--accent));transform:translateY(-50%) rotate(45deg);
}

/* ================= 截图轮播 ================= */
.shot-wrap{position:relative;}
.shot-track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:8px 4px 26px;scrollbar-width:none;
}
.shot-track::-webkit-scrollbar{display:none;}
.shot{
  flex:0 0 76%;scroll-snap-align:start;
}
@media (min-width:640px){.shot{flex:0 0 46%;}}
@media (min-width:1024px){.shot{flex:0 0 30%;}}
.shot-frame{
  aspect-ratio:9/19.5;border-radius:20px;overflow:hidden;border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(20,224,180,.14),rgba(255,62,127,.1));
  box-shadow:var(--shadow-card);
}
.shot-frame img{width:100%;height:100%;object-fit:cover;}
.shot-cap{margin-top:12px;font-size:14px;color:var(--text-l-2);text-align:center;}
.shot-nav{
  position:absolute;top:44%;width:44px;height:44px;border-radius:999px;
  background:var(--ink-800);color:var(--text-d);border:1px solid rgba(20,224,180,.28);
  display:none;align-items:center;justify-content:center;font-size:15px;
  transition:background-color .2s ease,transform .2s ease;
}
@media (min-width:1024px){.shot-nav{display:inline-flex;}}
.shot-nav:hover{background:var(--ink-700);transform:translateY(-2px);}
.shot-nav.prev{left:-8px;}
.shot-nav.next{right:-8px;}
.shot-progress{margin-top:6px;display:flex;align-items:center;gap:14px;max-width:520px;}
.shot-bar-bg{flex:1;height:4px;border-radius:999px;background:var(--line);overflow:hidden;}
.shot-bar{height:100%;width:20%;background:var(--primary);border-radius:999px;transition:width .2s ease;}
.shot-count{font-size:14px;color:var(--text-l-2);font-variant-numeric:tabular-nums;font-weight:600;}

/* ================= 规格卡 ================= */
.specs{display:grid;gap:18px;grid-template-columns:repeat(2,1fr);}
@media (min-width:1024px){.specs{grid-template-columns:repeat(4,1fr);gap:22px;}}
.spec{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 20px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.spec:hover{transform:translateY(-2px);border-color:rgba(0,155,125,.3);box-shadow:0 10px 24px rgba(16,24,40,.08);}
.spec i{font-size:22px;color:var(--primary-ink);}
.spec-name{margin-top:12px;font-size:14px;color:var(--text-l-2);}
.spec-value{margin-top:6px;font-size:20px;font-weight:700;line-height:1.35;font-variant-numeric:tabular-nums;}
.spec-note{margin-top:20px;font-size:13px;color:var(--text-l-2);}

/* ================= 评价墙 ================= */
.review-grid{display:grid;gap:20px;grid-template-columns:1fr;}
@media (min-width:640px){.review-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.review-grid{grid-template-columns:repeat(3,1fr);gap:24px;}}
@media (min-width:1024px){.review-grid > :nth-child(3n+2){margin-top:24px;}}
.review{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 20px;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease;
}
.review:hover{transform:translateY(-3px);box-shadow:0 14px 32px rgba(16,24,40,.1);}
.review-top{display:flex;align-items:center;gap:12px;}
.avatar{
  width:42px;height:42px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(20,224,180,.35),rgba(255,62,127,.28));
  color:var(--ink-900);font-weight:800;font-size:16px;flex-shrink:0;
}
.review-name{font-size:15px;font-weight:700;}
.review-stars{margin-top:2px;font-size:13px;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:1px;}
.review-text{margin-top:14px;font-size:15px;line-height:1.8;color:var(--text-l);}
.review-date{margin-top:14px;font-size:13px;color:var(--text-l-2);font-variant-numeric:tabular-nums;}

/* ================= 资讯列表（CMS） ================= */
.post-grid{display:grid;gap:24px;grid-template-columns:1fr;align-items:stretch;}
@media (min-width:640px){.post-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.post-grid{grid-template-columns:repeat(3,1fr);}}
.post-card{
  display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;height:100%;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(16,24,40,.12);border-color:rgba(0,155,125,.28);}
.post-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,rgba(20,224,180,.18),rgba(255,62,127,.12));}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.post-card:hover .post-cover img{transform:scale(1.04);}
.post-cover-fallback{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:34px;font-weight:800;color:rgba(0,155,125,.55);
}
.post-cat{
  position:absolute;left:12px;top:12px;height:24px;padding:0 10px;border-radius:999px;
  background:rgba(10,13,20,.72);color:var(--primary);font-size:12px;font-weight:700;
  display:inline-flex;align-items:center;backdrop-filter:blur(4px);
}
.post-body{padding:18px 18px 16px;display:flex;flex-direction:column;flex:1;}
.post-title{font-size:18px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-sum{margin-top:10px;font-size:14px;line-height:1.7;color:var(--text-l-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-foot{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-l-2);
}
.post-time{font-variant-numeric:tabular-nums;}
.post-more{color:var(--primary-ink);font-weight:700;}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);background:var(--paper);
  padding:48px 24px;text-align:center;color:var(--text-l-2);
}
.empty-state i{font-size:48px;color:rgba(0,155,125,.45);}
.empty-state p{margin-top:14px;font-size:14px;}
.empty-state a{display:inline-block;margin-top:12px;font-size:14px;font-weight:700;color:var(--primary-ink);}

/* ================= FAQ ================= */
.faq-list{max-width:900px;}
.faq-item{
  background:var(--paper);border:1px solid var(--line);border-radius:12px;margin-bottom:10px;
  overflow:hidden;position:relative;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary);
  transform:scaleY(0);transform-origin:top;transition:transform .2s ease;
}
.faq-item.open{border-color:rgba(0,155,125,.35);box-shadow:var(--shadow-card);}
.faq-item.open::before{transform:scaleY(1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;font-size:17px;font-weight:600;color:var(--text-l);
  transition:color .2s ease;
}
.faq-item.open .faq-q{color:var(--primary-ink);}
.faq-q i{font-size:14px;color:var(--text-l-2);transition:transform .2s ease;}
.faq-item.open .faq-q i{transform:rotate(180deg);color:var(--primary-ink);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.faq-a-inner{padding:0 20px 20px;font-size:16px;line-height:1.85;color:var(--text-l-2);}
.faq-a-inner ol{counter-reset:faqnum;margin-top:10px;}
.faq-a-inner ol li{position:relative;padding-left:26px;margin-bottom:8px;}
.faq-a-inner ol li::before{
  counter-increment:faqnum;content:counter(faqnum)".";
  position:absolute;left:0;color:var(--primary-ink);font-weight:700;
}

/* ================= 下载 CTA ================= */
.cta-panel{
  position:relative;background:var(--ink-800);border-radius:var(--radius-panel);
  border:1px solid rgba(20,224,180,.14);box-shadow:var(--shadow-panel);
  padding:34px 24px;overflow:hidden;
}
@media (min-width:1024px){.cta-panel{padding:52px 48px;}}
.cta-panel .glow{
  position:absolute;width:420px;height:420px;right:-140px;top:-160px;border-radius:999px;
  background:radial-gradient(circle,rgba(20,224,180,.24),transparent 68%);pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:grid;gap:28px;}
@media (min-width:1024px){.cta-inner{grid-template-columns:1fr auto;align-items:center;gap:40px;}}
.cta-inner h2{font-size:clamp(22px,3vw,32px);font-weight:700;color:#fff;line-height:1.3;}
.cta-inner p{margin-top:12px;font-size:15px;color:var(--text-d-2);max-width:440px;}
.cta-right{display:flex;flex-wrap:wrap;align-items:center;gap:16px;}
.platform-btns{display:flex;flex-direction:column;gap:12px;width:100%;}
@media (min-width:640px){.platform-btns{flex-direction:row;flex-wrap:wrap;width:auto;}}
.platform-btn{
  display:inline-flex;align-items:center;gap:10px;height:48px;padding:0 22px;border-radius:var(--radius-btn);
  background:rgba(255,255,255,.06);border:1px solid rgba(228,232,239,.18);color:var(--text-d);
  font-size:15px;font-weight:700;transition:background-color .2s ease,transform .2s ease,border-color .2s ease;
}
.platform-btn:hover{background:rgba(20,224,180,.14);border-color:rgba(20,224,180,.5);transform:translateY(-2px);}
.qr-box{
  width:140px;height:140px;border-radius:14px;border:1px solid rgba(20,224,180,.35);
  position:relative;display:none;align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);color:var(--text-d-2);font-size:12px;text-align:center;
}
@media (min-width:1024px){.qr-box{display:flex;}}
.qr-box i{position:absolute;width:16px;height:16px;border:2px solid var(--primary);}
.qr-box i:nth-child(1){left:8px;top:8px;border-right:0;border-bottom:0;border-radius:4px 0 0 0;}
.qr-box i:nth-child(2){right:8px;top:8px;border-left:0;border-bottom:0;border-radius:0 4px 0 0;}
.qr-box i:nth-child(3){left:8px;bottom:8px;border-right:0;border-top:0;border-radius:0 0 0 4px;}
.qr-box i:nth-child(4){right:8px;bottom:8px;border-left:0;border-top:0;border-radius:0 0 4px 0;}

/* ================= 页脚 ================= */
.site-footer{background:var(--ink-900);color:var(--text-d-2);position:relative;}
.footer-stripe{height:2px;background:linear-gradient(90deg,transparent,var(--primary),var(--accent),transparent);opacity:.85;}
.footer-grid{
  display:grid;gap:32px;grid-template-columns:repeat(2,1fr);padding:48px 0 32px;
  position:relative;
}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px;}}
.footer-brand{grid-column:1 / -1;}
@media (min-width:1024px){.footer-brand{grid-column:auto;}}
.footer-brand .brand-name{color:var(--text-d);}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.8;color:var(--text-d-2);max-width:340px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag-row span{
  height:26px;display:inline-flex;align-items:center;padding:0 12px;border-radius:999px;
  font-size:12px;border:1px solid rgba(20,224,180,.25);color:rgba(20,224,180,.85);
}
.site-footer h4{font-size:15px;font-weight:700;color:var(--text-d);margin-bottom:14px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-d-2);transition:color .18s ease;}
.footer-links a:hover{color:var(--primary);}
.footer-dl{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-start;}
.footer-qr{
  width:120px;height:120px;border-radius:12px;border:1px solid rgba(20,224,180,.3);
  display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--text-d-2);
  background:rgba(255,255,255,.03);text-align:center;
}
.footer-contact{font-size:14px;line-height:1.9;color:var(--text-d-2);}
.footer-bottom{
  border-top:1px solid rgba(228,232,239,.1);padding:20px 0 28px;text-align:center;
  font-size:13px;color:rgba(147,160,180,.85);line-height:1.9;
}
.footer-bottom a{color:rgba(147,160,180,.95);}
.footer-bottom a:hover{color:var(--primary);}

/* ================= 移动端吸底下载条 ================= */
.bottom-download{
  position:fixed;left:0;right:0;bottom:0;z-index:70;height:56px;
  background:rgba(10,13,20,.96);border-top:1px solid rgba(20,224,180,.24);
  backdrop-filter:blur(10px);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:0 16px calc(env(safe-area-inset-bottom) / 2);
}
@media (min-width:1024px){.bottom-download{display:none;}}
.bottom-info{font-size:12px;color:var(--text-d-2);line-height:1.4;}
.bottom-info strong{display:block;font-size:13px;color:var(--text-d);}
@media (max-width:1023px){body{padding-bottom:56px;}}

/* ================= 通用小工具 ================= */
.mt-24{margin-top:24px;}
.mt-40{margin-top:40px;}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* roulang page: article */
:root{
  --ink-900:#0A0D14;
  --ink-800:#121826;
  --ink-700:#1B2231;
  --paper:#FFFFFF;
  --paper-2:#F4F6F8;
  --line:#E4E8EF;
  --primary:#14E0B4;
  --primary-ink:#009B7D;
  --primary-deep:#06231D;
  --accent:#FF3E7F;
  --highlight:#FFD84D;
  --text-d:#E8EDF5;
  --text-d-2:#93A0B4;
  --text-l:#1A2030;
  --text-l-2:#5A6478;
  --radius-card:16px;
  --radius-panel:24px;
  --radius-btn:12px;
  --shadow-card:0 6px 20px rgba(16,24,40,.06);
  --shadow-hover:0 14px 32px rgba(16,24,40,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--text-l);
  background:var(--paper-2);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary-ink);text-decoration:none;transition:color .2s ease}
button{font-family:inherit}
h1,h2,h3,h4{font-family:inherit;color:var(--text-l)}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:1024px){
  .container{padding-left:32px;padding-right:32px}
}
/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:var(--ink-900);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(10,13,20,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  box-shadow:0 10px 30px rgba(0,0,0,.4);
  border-color:rgba(228,232,239,.08);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:800;letter-spacing:-.2px;white-space:nowrap}
.brand:hover{color:#fff}
.brand-mark{display:grid;grid-template-columns:repeat(2,7px);grid-template-rows:repeat(2,7px);gap:3px;flex:none}
.brand-mark span{width:7px;height:7px;border:1.5px solid var(--primary);border-radius:2px;display:block}
.brand-mark span:nth-child(2){border-color:var(--accent)}
.brand-mark span:nth-child(3){border-color:rgba(20,224,180,.45)}
.brand-mark span:nth-child(4){background:var(--primary);border-color:var(--primary)}
.main-nav{display:none}
@media (min-width:1024px){
  .main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
  .main-nav a{
    position:relative;color:var(--text-d-2);font-size:15px;font-weight:600;
    padding:10px 12px;border-radius:999px;transition:color .2s ease;
  }
  .main-nav a:hover{color:#fff}
  .main-nav a.active{color:#fff}
  .main-nav a.active::after{
    content:"";position:absolute;left:50%;bottom:2px;width:60%;height:2px;
    transform:translateX(-50%);border-radius:2px;background:var(--primary);
  }
}
.header-cta{display:none}
@media (min-width:1024px){
  .header-cta{
    display:inline-flex;align-items:center;justify-content:center;
    height:42px;padding:0 22px;border-radius:999px;
    background:var(--primary);color:var(--primary-deep);
    font-size:14px;font-weight:700;white-space:nowrap;
    transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
  }
  .header-cta:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 10px 26px rgba(20,224,180,.28)}
}
.nav-toggle{
  margin-left:auto;width:44px;height:44px;border-radius:12px;
  background:transparent;border:1px solid rgba(255,255,255,.16);
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  cursor:pointer;transition:border-color .2s ease,background .2s ease;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-d);transition:transform .25s ease,opacity .25s ease}
.nav-toggle:hover{border-color:rgba(20,224,180,.6);background:rgba(20,224,180,.08)}
@media (min-width:1024px){.nav-toggle{display:none}}
/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:190;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;
  background:var(--ink-800);z-index:200;display:flex;flex-direction:column;
  padding:22px 20px 26px;overflow-y:auto;
  transform:translateX(105%);
  transition:transform .32s cubic-bezier(.4,0,.2,1);
  box-shadow:-18px 0 44px rgba(0,0,0,.45);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{
  width:40px;height:40px;border-radius:12px;background:transparent;
  border:1px solid rgba(255,255,255,.16);color:var(--text-d);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-close:hover{border-color:var(--primary);color:var(--primary)}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  color:var(--text-d-2);font-size:16px;font-weight:600;padding:15px 4px;
  border-bottom:1px solid rgba(255,255,255,.07);transition:color .2s ease,padding-left .2s ease;
}
.drawer-nav a:hover{color:var(--primary);padding-left:8px}
.drawer-nav a.active{color:#fff}
.drawer-cta{margin-top:22px}
.drawer-foot{margin-top:auto;padding-top:26px;font-size:12px;line-height:1.7;color:var(--text-d-2)}
body.no-scroll{overflow:hidden}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;border:1px solid transparent;
  cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
}
.btn-primary{background:var(--primary);color:var(--primary-deep)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 10px 26px rgba(20,224,180,.28);color:var(--primary-deep)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:rgba(20,224,180,.45);color:var(--primary-ink)}
.btn-ghost:hover{background:rgba(20,224,180,.08);transform:translateY(-2px);color:var(--primary-ink)}
.btn-ghost-dark{background:transparent;border-color:rgba(255,255,255,.22);color:var(--text-d)}
.btn-ghost-dark:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary-ink);
}
.link-arrow .arw{transition:transform .22s ease}
.link-arrow:hover .arw{transform:translateX(3px)}
/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;background:rgba(20,224,180,.12);color:var(--primary-ink);
  font-size:13px;font-weight:700;white-space:nowrap;
}
.badge-accent{background:rgba(255,62,127,.12);color:var(--accent)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);background:var(--paper);color:var(--text-l-2);
  font-size:13px;font-weight:600;transition:transform .2s ease,border-color .2s ease,color .2s ease;
}
.tag:hover{transform:translateY(-2px);border-color:rgba(20,224,180,.5);color:var(--primary-ink)}
/* ---------- 文章头部 ---------- */
.article-hero{background:var(--paper);border-bottom:1px solid var(--line)}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);gap:32px;
  max-width:var(--container);margin:0 auto;padding:0 20px;
}
@media (min-width:1280px){
  .article-layout{grid-template-columns:minmax(0,1fr) 240px;max-width:1120px;padding:0 32px}
}
.article-main{min-width:0;max-width:800px;margin:0 auto;width:100%}
.article-head{padding:32px 0 30px}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--text-l-2);margin-bottom:20px;
}
.crumbs a{color:var(--text-l-2)}
.crumbs a:hover{color:var(--primary-ink)}
.crumbs .sep{color:#C3CAD6}
.crumbs .cur{color:var(--text-l-2);max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:18px}
.meta-item{font-size:14px;color:var(--text-l-2);font-variant-numeric:tabular-nums}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--accent);flex:none}
.article-title{
  font-size:clamp(28px,4vw,44px);font-weight:800;line-height:1.22;
  letter-spacing:-.5px;margin:0 0 22px;color:var(--text-l);
}
.article-head .rule{height:1px;background:var(--line);border:0;margin:0}
/* ---------- 正文 ---------- */
.article-section{padding:40px 0 88px;background:var(--paper-2)}
@media (min-width:1024px){.article-section{padding:56px 0 104px}}
.article-body{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-panel);
  padding:28px 22px 36px;box-shadow:var(--shadow-card);overflow-wrap:break-word;
}
@media (min-width:768px){.article-body{padding:48px 52px 56px}}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.4em;font-size:17px;line-height:1.9;color:#232B3B}
.article-body h2{
  position:relative;font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.35;
  margin:2em 0 .7em;padding-left:18px;color:var(--text-l);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;
  border-radius:2px;background:var(--primary);
}
.article-body h3{font-size:20px;font-weight:700;margin:1.8em 0 .6em;color:var(--text-l)}
.article-body h4{font-size:17px;font-weight:600;margin:1.5em 0 .5em;color:var(--text-l)}
.article-body a{color:var(--primary-ink);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{text-decoration:none}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.6em}
.article-body li{margin-bottom:.5em;line-height:1.85}
.article-body blockquote{
  margin:1.6em 0;padding:16px 22px;border-left:3px solid var(--primary);
  background:var(--paper-2);border-radius:0 12px 12px 0;color:var(--text-l-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:1.6em auto;height:auto}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--text-l-2);text-align:center;margin-top:10px}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.4em 0}
.article-body code{
  background:var(--paper-2);border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;font-size:14px;color:var(--accent);
}
.article-body pre{
  overflow-x:auto;background:var(--ink-800);color:var(--text-d);
  padding:18px 20px;border-radius:12px;font-size:14px;line-height:1.75;
}
.article-body pre code{background:none;border:0;padding:0;color:inherit}
.table-scroll{
  overflow-x:auto;border:1px solid var(--line);border-radius:12px;margin:1.6em 0;
  -webkit-overflow-scrolling:touch;
}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px;margin:0}
.article-body th,.article-body td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line)}
.article-body th{background:var(--paper-2);font-weight:700;color:var(--text-l)}
.article-body tbody tr:nth-child(even){background:#FAFBFC}
.article-body tbody tr:last-child td{border-bottom:0}
/* ---------- 目录 ---------- */
.toc{display:none}
@media (min-width:1280px){.toc{display:block}}
.toc-inner{position:sticky;top:100px;font-size:14px}
.toc-title{
  font-size:13px;font-weight:700;color:var(--text-l);letter-spacing:.06em;
  margin:0 0 12px;padding-bottom:10px;border-bottom:1px solid var(--line);
}
.toc a{
  display:block;color:var(--text-l-2);line-height:1.5;padding:7px 0 7px 14px;
  border-left:2px solid var(--line);transition:color .2s ease,border-color .2s ease;
}
.toc a:hover{color:var(--primary-ink)}
.toc a.is-current{color:var(--primary-ink);border-left-color:var(--primary);font-weight:600}
.toc-mobile{margin-bottom:20px}
@media (min-width:1280px){.toc-mobile{display:none}}
.toc-mobile details{
  background:var(--paper);border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.toc-mobile summary{
  list-style:none;cursor:pointer;padding:14px 18px;font-size:15px;font-weight:600;
  color:var(--text-l);display:flex;align-items:center;justify-content:space-between;
}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary .chev{transition:transform .22s ease;color:var(--text-l-2)}
.toc-mobile details[open] summary .chev{transform:rotate(180deg)}
.toc-mobile .toc-list{padding:4px 18px 16px}
.toc-mobile .toc-list a{display:block;padding:8px 0;font-size:14px;color:var(--text-l-2)}
/* ---------- 空态 ---------- */
.empty-state{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-panel);
  padding:64px 24px;text-align:center;box-shadow:var(--shadow-card);
}
.empty-state .ico{
  width:56px;height:56px;margin:0 auto 16px;border-radius:16px;
  background:linear-gradient(135deg,rgba(20,224,180,.18),rgba(255,62,127,.12));
  display:grid;place-items:center;color:var(--primary-ink);
}
.empty-state p{margin:0 0 18px;font-size:16px;color:var(--text-l-2)}
/* ---------- 文章尾部 ---------- */
.article-foot{margin-top:28px;display:flex;flex-direction:column;gap:22px}
.article-foot h4{margin:0 0 12px;font-size:14px;font-weight:700;color:var(--text-l-2);letter-spacing:.04em}
.back-row{display:flex;flex-wrap:wrap;gap:14px}
/* ---------- 相关推荐 ---------- */
.related-section{padding:0 0 88px;background:var(--paper-2)}
@media (min-width:1024px){.related-section{padding:0 0 104px}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,3vw,30px);font-weight:700;line-height:1.3;margin:0 0 6px;letter-spacing:-.3px}
.section-head p{margin:0;font-size:15px;color:var(--text-l-2)}
.card-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.post-card{
  display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(20,224,180,.35)}
.post-card .thumb{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  background:linear-gradient(135deg,rgba(20,224,180,.16),rgba(255,62,127,.12));
}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.post-card:hover .thumb img{transform:scale(1.04)}
.post-card .thumb .badge{
  position:absolute;top:12px;left:12px;background:rgba(20,224,180,.94);
  color:var(--primary-deep);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
}
.post-card .card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card h3{
  margin:0;font-size:18px;font-weight:700;line-height:1.45;color:var(--text-l);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card p{
  margin:0;font-size:14px;line-height:1.65;color:var(--text-l-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-l-2);font-variant-numeric:tabular-nums;
}
/* ---------- 下载 CTA ---------- */
.cta-wrap{padding:0 0 88px;background:var(--paper-2)}
@media (min-width:1024px){.cta-wrap{padding:0 0 104px}}
.cta-panel{
  position:relative;overflow:hidden;background:var(--ink-800);
  border:1px solid rgba(20,224,180,.14);border-radius:var(--radius-panel);
  padding:38px 24px;box-shadow:0 18px 44px rgba(0,0,0,.45);
  display:flex;flex-direction:column;gap:26px;
}
@media (min-width:768px){.cta-panel{padding:48px 48px;flex-direction:row;align-items:center;justify-content:space-between;gap:40px}}
.cta-panel::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(20,224,180,.4) 1px,transparent 1px);
  background-size:18px 18px;opacity:.1;pointer-events:none;
}
.cta-panel::after{
  content:"";position:absolute;width:340px;height:340px;right:-120px;top:-160px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,224,180,.22),transparent 68%);pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:520px}
.cta-copy h2{color:var(--text-d);font-size:clamp(22px,3vw,32px);font-weight:700;line-height:1.3;margin:0 0 10px}
.cta-copy p{margin:0;color:var(--text-d-2);font-size:15px;line-height:1.7}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:14px}
.cta-actions .btn{flex:1 1 180px}
@media (min-width:768px){.cta-actions .btn{flex:0 0 auto}}
/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--ink-900);color:var(--text-d-2);padding-top:0}
.site-footer::before{
  content:"";position:absolute;top:2px;left:0;right:0;height:120px;
  background-image:radial-gradient(rgba(20,224,180,.4) 1px,transparent 1px);
  background-size:20px 20px;opacity:.07;pointer-events:none;
}
.footer-stripe{height:1px;background:linear-gradient(90deg,transparent,var(--primary),var(--accent),transparent);opacity:.85}
.footer-grid{position:relative;display:grid;grid-template-columns:1fr;gap:32px;padding-top:52px;padding-bottom:38px}
@media (min-width:768px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));padding-top:60px}
  .footer-brand{grid-column:1 / -1}
}
@media (min-width:1024px){
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-top:68px;padding-bottom:46px}
  .footer-brand{grid-column:auto}
}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{margin:0 0 16px;font-size:14px;line-height:1.8;color:var(--text-d-2);max-width:340px}
.footer-brand .tag-row span{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  border:1px solid rgba(20,224,180,.3);color:var(--primary);font-size:12px;font-weight:600;
}
.site-footer h4{margin:0 0 16px;font-size:15px;font-weight:700;color:var(--text-d)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:var(--text-d-2);font-size:14px;transition:color .2s ease,padding-left .2s ease}
.footer-links a:hover{color:var(--primary);padding-left:4px}
.footer-dl{display:flex;flex-wrap:wrap;gap:16px}
.footer-qr{
  width:120px;height:120px;flex:none;border-radius:12px;
  border:1px dashed rgba(20,224,180,.4);background:rgba(20,224,180,.05);
  display:grid;place-items:center;text-align:center;font-size:12px;line-height:1.6;color:var(--text-d-2);
}
.footer-contact{font-size:13px;line-height:2;color:var(--text-d-2);font-variant-numeric:tabular-nums}
.footer-bottom{
  display:flex;flex-direction:column;gap:10px;align-items:center;text-align:center;
  border-top:1px solid rgba(255,255,255,.08);padding-top:20px;padding-bottom:28px;font-size:13px;
}
@media (min-width:768px){
  .footer-bottom{flex-direction:row;justify-content:space-between;text-align:left}
}
.footer-bottom a{color:var(--text-d-2)}
.footer-bottom a:hover{color:var(--primary)}
/* ---------- 通用板块 ---------- */
.section{padding:56px 0}
@media (min-width:640px){.section{padding:72px 0}}
@media (min-width:1024px){.section{padding:96px 0}}
@media (max-width:639px){
  .article-title{font-size:26px}
  .section-head{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --ink-900:#0A0D14;
  --ink-800:#121826;
  --ink-700:#1B2231;
  --paper:#FFFFFF;
  --paper-2:#F4F6F8;
  --line:#E4E8EF;
  --primary:#14E0B4;
  --primary-ink:#009B7D;
  --primary-deep:#06231D;
  --accent:#FF3E7F;
  --highlight:#FFD84D;
  --text-d:#E8EDF5;
  --text-d-2:#93A0B4;
  --text-l:#1A2030;
  --text-l-2:#5A6478;
  --r-card:16px;
  --r-panel:24px;
  --r-btn:12px;
  --shadow-card:0 6px 20px rgba(16,24,40,.06);
  --shadow-panel:0 18px 44px rgba(0,0,0,.45);
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-l);
  background:var(--paper);
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{font-family:inherit;font-weight:700;color:inherit;margin:0;line-height:1.35;letter-spacing:-.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;border-radius:12px}
a{color:var(--primary-ink);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,13,20,.72);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:background .25s ease,border-color .25s ease;
}
.site-header.scrolled{
  background:rgba(10,13,20,.86);
  border-bottom-color:rgba(228,232,239,.12);
}
.header-inner{display:flex;align-items:center;gap:20px;height:var(--header-h)}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:grid;grid-template-columns:1fr 1fr;gap:3px;width:22px;height:22px}
.brand-mark span{border:1.5px solid var(--primary);border-radius:3px}
.brand-mark span:last-child{background:var(--primary);border-color:var(--primary)}
.brand-name{font-size:18px;font-weight:800;color:#fff;letter-spacing:-.4px}
.main-nav{display:flex;align-items:center;gap:2px;margin:0 auto}
.main-nav a{
  position:relative;
  display:inline-flex;align-items:center;height:var(--header-h);
  padding:0 13px;
  font-size:15px;font-weight:600;color:var(--text-d-2);
  white-space:nowrap;
}
.main-nav a:hover{color:#fff}
.main-nav a.active{color:#fff}
.main-nav a.active::after{
  content:"";position:absolute;left:50%;bottom:16px;transform:translateX(-50%);
  width:60%;height:2px;border-radius:2px;background:var(--primary);
}
.header-cta{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.16);border-radius:12px;
  background:transparent;color:#fff;font-size:17px;cursor:pointer;
  transition:border-color .2s ease,background .2s ease;
}
.nav-toggle:hover{border-color:rgba(20,224,180,.5);background:rgba(20,224,180,.08)}
@media (max-width:1023px){
  .main-nav{display:none}
  .header-cta .btn-header{display:none}
  .nav-toggle{display:inline-flex}
}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);
  opacity:0;pointer-events:none;transition:opacity .3s ease;z-index:80;
}
.drawer-mask.show{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;
  background:var(--ink-800);z-index:90;
  transform:translateX(105%);transition:transform .3s ease;
  display:flex;flex-direction:column;padding:22px 20px;
  border-left:1px solid rgba(20,224,180,.16);
}
.drawer.open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.08)}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.16);
  background:transparent;color:#fff;font-size:16px;cursor:pointer;
}
.drawer-links{padding:14px 0;flex:1;overflow-y:auto}
.drawer-links a{
  display:block;padding:13px 4px;font-size:16px;font-weight:600;
  color:var(--text-d-2);border-bottom:1px solid rgba(255,255,255,.06);
}
.drawer-links a.active,.drawer-links a:hover{color:var(--primary)}
.drawer-foot{padding-top:14px;border-top:1px solid rgba(255,255,255,.08)}
.drawer-foot p{margin-top:12px;font-size:12px;color:var(--text-d-2);text-align:center}
body.locked{overflow:hidden}

/* ---------- 按钮系统 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;border:1px solid transparent;
  cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,filter .2s ease,border-color .2s ease;
  text-align:center;
}
.btn i{font-size:14px}
.btn-primary{background:var(--primary);color:var(--primary-deep)}
.btn-primary:hover{color:var(--primary-deep);filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 10px 26px rgba(20,224,180,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;color:var(--text-d);border-color:rgba(255,255,255,.22)}
.btn-ghost:hover{color:#fff;border-color:rgba(20,224,180,.6);background:rgba(20,224,180,.08);transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--primary-ink);border-color:rgba(0,155,125,.35)}
.btn-outline:hover{color:var(--primary-ink);border-color:var(--primary-ink);transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,155,125,.14)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px}
.btn-block{width:100%}

/* ---------- 页面头图 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:52px 0 46px;
  color:var(--text-d);
  background:linear-gradient(180deg,rgba(10,13,20,.76),rgba(10,13,20,.95)),
             url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid rgba(20,224,180,.12);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(20,224,180,.9) 1px,transparent 1px);
  background-size:26px 26px;opacity:.08;
}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-d-2)}
.breadcrumb a{color:var(--text-d-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span.dot{color:rgba(255,255,255,.3)}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 0}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:999px;font-size:12px;font-weight:600;
  font-variant-numeric:tabular-nums;
}
.badge-dark{background:rgba(20,224,180,.12);color:var(--primary);border:1px solid rgba(20,224,180,.3)}
.badge-light{background:rgba(20,224,180,.12);color:var(--primary-ink)}
.badge-accent{background:rgba(255,62,127,.12);color:var(--accent)}
.page-hero h1{
  font-size:clamp(28px,4.8vw,52px);font-weight:800;line-height:1.18;
  letter-spacing:-.5px;color:#fff;margin:18px 0 14px;
}
.page-hero .hero-sub{max-width:660px;color:var(--text-d-2);font-size:16px}

/* ---------- 板块 ---------- */
.section{padding:56px 0}
@media (min-width:640px){.section{padding:72px 0}}
@media (min-width:1024px){.section{padding:96px 0}}
.section-alt{background:var(--paper-2)}
.section-head{max-width:760px;margin-bottom:36px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1.5px;
  color:var(--primary-ink);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);border-radius:2px}
.section-title{font-size:clamp(22px,3vw,34px);font-weight:700;line-height:1.3;margin:12px 0 12px}
.section-desc{color:var(--text-l-2);font-size:16px;max-width:700px}

/* ---------- 交错图文 ---------- */
.zigzag{display:grid;gap:0}
.zz-item{
  display:grid;grid-template-columns:1fr;gap:24px;align-items:center;
  padding:34px 0;border-top:1px solid var(--line);
}
.zz-item:first-child{border-top:0;padding-top:0}
@media (min-width:768px){
  .zz-item{grid-template-columns:1fr 1fr;gap:56px;padding:44px 0}
  .zz-item:nth-child(even) .zz-media{order:2}
}
.zz-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.zz-num{font-size:13px;font-weight:800;letter-spacing:3px;color:var(--primary-ink);font-variant-numeric:tabular-nums}
.zz-body h3{font-size:20px;font-weight:700;margin:12px 0 12px}
.zz-body p{color:var(--text-l-2);font-size:16px}
.zz-list{margin-top:16px;display:grid;gap:8px}
.zz-list li{position:relative;padding-left:22px;font-size:15px;color:var(--text-l-2)}
.zz-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;
  background:rgba(20,224,180,.35);border:1px solid var(--primary);
}
.link-arrow{display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-weight:700;color:var(--primary-ink)}
.link-arrow i{transition:transform .2s ease}
.link-arrow:hover i{transform:translateX(3px)}

/* ---------- 数据卡 ---------- */
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;height:100%;margin-bottom:20px;
  box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.stat-card:hover{transform:translateY(-2px);border-color:rgba(20,224,180,.35);box-shadow:0 12px 28px rgba(16,24,40,.09)}
.stat-icon{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(20,224,180,.35);color:var(--primary-ink);font-size:17px;
}
.stat-label{font-size:13px;color:var(--text-l-2);margin:14px 0 2px}
.stat-value{font-size:20px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--text-l)}
.stat-note{font-size:13px;color:var(--text-l-2);margin-top:42px}

/* ---------- 场景卡 ---------- */
.scene-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;height:100%;margin-bottom:20px;box-shadow:var(--shadow-card);
}
.scene-card h3{font-size:18px;font-weight:700;margin-bottom:8px;display:flex;align-items:center;gap:10px}
.scene-card h3 i{color:var(--primary-ink);font-size:16px}
.scene-card > p{font-size:15px;color:var(--text-l-2);margin-bottom:14px}
.scene-list{display:grid;gap:10px}
.scene-list li{
  display:flex;gap:10px;font-size:15px;color:var(--text-l-2);
  padding-top:10px;border-top:1px dashed var(--line);
}
.scene-list li:first-child{border-top:0;padding-top:0}
.scene-list li i{color:var(--primary-ink);margin-top:6px;font-size:13px}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:12px;margin-bottom:10px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.open{border-color:rgba(20,224,180,.45);box-shadow:0 10px 24px rgba(16,24,40,.07)}
.faq-item.open::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--text-l);line-height:1.6;
  transition:color .2s ease;
}
.faq-item.open .faq-q{color:var(--primary-ink)}
.faq-q i{flex:0 0 auto;font-size:14px;color:var(--text-l-2);transition:transform .2s ease}
.faq-item.open .faq-q i{transform:rotate(180deg);color:var(--primary-ink)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-a-inner{padding:0 20px 20px;color:var(--text-l-2);font-size:16px;line-height:1.85}
.faq-a-inner ol{margin-top:10px;counter-reset:faq;display:grid;gap:6px}
.faq-a-inner ol li{position:relative;padding-left:26px;font-size:15px}
.faq-a-inner ol li::before{
  counter-increment:faq;content:counter(faq);
  position:absolute;left:0;top:2px;width:18px;height:18px;border-radius:50%;
  background:rgba(20,224,180,.14);color:var(--primary-ink);
  font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;
}

/* ---------- 快捷入口 ---------- */
.mini-links{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:640px){.mini-links{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.mini-links{grid-template-columns:repeat(3,1fr)}}
.mini-link{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:20px 22px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  font-size:16px;font-weight:700;color:var(--text-l);box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.mini-link small{display:block;font-size:13px;font-weight:500;color:var(--text-l-2);margin-top:4px}
.mini-link i{color:var(--primary-ink)}
.mini-link:hover{transform:translateY(-3px);border-color:rgba(20,224,180,.4);color:var(--text-l);box-shadow:0 14px 30px rgba(16,24,40,.1)}

/* ---------- 下载 CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  background:var(--ink-800);border:1px solid rgba(20,224,180,.14);
  border-radius:var(--r-panel);padding:36px 24px;
  box-shadow:var(--shadow-panel);color:var(--text-d);
}
.cta-panel::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(20,224,180,.9) 1px,transparent 1px);
  background-size:24px 24px;opacity:.07;
}
.cta-grid{position:relative;z-index:1;display:flex;flex-direction:column;gap:26px}
@media (min-width:900px){
  .cta-panel{padding:48px}
  .cta-grid{flex-direction:row;align-items:center;justify-content:space-between;gap:40px}
}
.cta-panel h2{font-size:clamp(22px,3vw,32px);font-weight:700;color:#fff;margin:14px 0 10px}
.cta-panel p{color:var(--text-d-2);font-size:15px;max-width:520px}
.cta-btns{display:flex;flex-direction:column;gap:12px;min-width:230px}
@media (min-width:640px){.cta-btns{flex-direction:row;flex-wrap:wrap}}
.cta-btns .btn{min-height:48px}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--ink-900);color:var(--text-d);padding-top:64px;margin-top:8px}
.footer-stripe{position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--primary),transparent)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:48px}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}}
.footer-brand{grid-column:1/-1}
@media (min-width:1024px){.footer-brand{grid-column:auto}}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--text-d-2);max-width:320px;line-height:1.8}
.site-footer h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links a{display:block;padding:6px 0;font-size:14px;color:var(--text-d-2)}
.footer-links a:hover{color:var(--primary)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag-row span{
  font-size:12px;padding:5px 12px;border-radius:999px;
  border:1px solid rgba(20,224,180,.3);color:var(--primary);
}
.footer-dl{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.footer-qr{
  width:120px;height:120px;flex:0 0 auto;border:1px solid rgba(255,255,255,.18);border-radius:12px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;color:var(--text-d-2);line-height:1.6;
  background:linear-gradient(135deg,rgba(20,224,180,.08),rgba(255,62,127,.06));
}
.footer-contact{font-size:13px;color:var(--text-d-2);line-height:2}
.footer-contact a{color:var(--text-d-2)}
.footer-contact a:hover{color:var(--primary)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 26px;display:flex;flex-direction:column;gap:10px;align-items:center;
  font-size:13px;color:var(--text-d-2);text-align:center;
}
@media (min-width:768px){.footer-bottom{flex-direction:row;justify-content:space-between;text-align:left}}
.footer-bottom a{color:var(--text-d-2)}
.footer-bottom a:hover{color:var(--primary)}

/* roulang page: category2 */
:root{
  --ink-900:#0A0D14;
  --ink-800:#121826;
  --ink-700:#1B2231;
  --paper:#FFFFFF;
  --paper-2:#F4F6F8;
  --line:#E4E8EF;
  --primary:#14E0B4;
  --primary-ink:#009B7D;
  --primary-deep:#06231D;
  --accent:#FF3E7F;
  --highlight:#FFD84D;
  --text-d:#E8EDF5;
  --text-d2:#93A0B4;
  --text-l:#1A2030;
  --text-l2:#5A6478;
  --r-card:16px;
  --r-panel:24px;
  --r-btn:12px;
  --shadow-l:0 6px 20px rgba(16,24,40,.06);
  --shadow-l-hover:0 14px 34px rgba(16,24,40,.12);
  --shadow-d:0 18px 44px rgba(0,0,0,.45);
  --maxw:1200px;
  --sec-pc:104px;
  --sec-tab:72px;
  --sec-mob:56px;
}

/* ---------- reset / base ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-l);
  background:var(--paper);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;border-radius:12px;}
a{color:var(--primary-ink);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--primary);}
h1,h2,h3,h4{margin:0;color:inherit;font-weight:700;letter-spacing:-.2px;}
h1{font-size:clamp(28px,4.8vw,52px);font-weight:800;line-height:1.18;letter-spacing:-.5px;}
h2{font-size:clamp(22px,3vw,34px);line-height:1.3;}
h3{font-size:20px;line-height:1.45;}
h4{font-size:17px;font-weight:600;line-height:1.5;}
p{margin:0 0 1.1em;}
ul,ol{margin:0 0 1.1em;padding-left:1.4em;}
li{margin-bottom:.4em;}
button{font-family:inherit;cursor:pointer;}
input{font-family:inherit;}
.num{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:var(--primary-deep);padding:10px 18px;border-radius:0 0 12px 0;z-index:200;}
.skip-link:focus{left:0;}

/* ---------- foundation 覆盖 ---------- */
body,a,button,.button{font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;}
a{color:var(--primary-ink);}
a:hover{color:var(--primary-ink);}
.button{background:var(--primary);color:var(--primary-deep);border-radius:var(--r-btn);font-weight:700;}
.button:hover{background:var(--primary);}
.grid-x{margin-left:0;margin-right:0;}
.cell{padding-left:0;padding-right:0;}

/* ---------- 容器 ---------- */
.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media screen and (min-width:1024px){
  .container{padding-left:32px;padding-right:32px;}
}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(10,13,20,.94);
  border-bottom:1px solid rgba(228,232,239,.08);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(10,13,20,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom-color:rgba(228,232,239,.14);
  box-shadow:0 8px 26px rgba(0,0,0,.35);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text-d);
  flex:0 0 auto;
}
.brand:hover{color:var(--text-d);}
.brand-mark{
  width:28px;height:28px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:3px;
  padding:3px;
  border:2px solid var(--primary);
  border-radius:8px;
  flex:0 0 auto;
}
.brand-mark span{background:var(--primary);border-radius:2px;display:block;}
.brand-mark span:last-child{background:transparent;}
.brand-name{font-size:18px;font-weight:800;letter-spacing:-.2px;white-space:nowrap;}
.main-nav{display:none;}
.main-nav a{
  position:relative;
  display:inline-block;
  color:var(--text-d2);
  font-size:15px;
  font-weight:600;
  padding:6px 2px;
  white-space:nowrap;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-2px;
  width:0;
  height:2px;
  background:var(--primary);
  border-radius:2px;
  transition:width .22s ease;
}
.main-nav a:hover{color:var(--text-d);}
.main-nav a:hover::after{width:60%;}
.main-nav a.active{color:var(--text-d);}
.main-nav a.active::after{width:60%;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  width:44px;height:44px;
  display:inline-flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  background:transparent;
  border:1px solid rgba(228,232,239,.22);
  border-radius:12px;
  padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-d);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.btn-nav-desktop{display:none;}
@media screen and (min-width:1024px){
  .main-nav{display:flex;align-items:center;gap:26px;}
  .nav-toggle{display:none;}
  .btn-nav-desktop{display:inline-flex;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  border-radius:var(--r-btn);
  font-size:15.5px;
  font-weight:700;
  border:1px solid transparent;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
  text-align:center;
}
.btn-sm{min-height:42px;padding:0 20px;font-size:14.5px;}
.btn-primary{
  background:var(--primary);
  color:var(--primary-deep);
}
.btn-primary:hover{
  background:#20e9bd;
  color:var(--primary-deep);
  transform:translateY(-2px);
  box-shadow:0 10px 26px rgba(20,224,180,.28);
}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{
  background:transparent;
  border-color:rgba(20,224,180,.4);
  color:var(--primary);
}
.btn-ghost:hover{
  border-color:var(--primary);
  color:var(--primary);
  transform:translateY(-2px);
  background:rgba(20,224,180,.08);
}
.btn-ghost-light{
  background:#fff;
  border-color:var(--line);
  color:var(--primary-ink);
}
.btn-ghost-light:hover{
  border-color:rgba(20,224,180,.6);
  color:var(--primary-ink);
  transform:translateY(-2px);
  box-shadow:var(--shadow-l);
}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:700;
  color:var(--primary-ink);
}
.link-arrow .arw{transition:transform .2s ease;}
.link-arrow:hover .arw{transform:translateX(3px);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:13px;
  font-weight:700;
  background:rgba(20,224,180,.12);
  color:var(--primary-ink);
  white-space:nowrap;
}
.badge-dark{
  background:rgba(20,224,180,.08);
  border:1px solid rgba(20,224,180,.3);
  color:var(--primary);
}
.badge-accent{background:rgba(255,62,127,.12);color:var(--accent);}
.badge-highlight{background:rgba(255,216,77,.2);color:#8a6a00;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag-row span{
  display:inline-block;
  padding:5px 12px;
  border-radius:999px;
  font-size:13px;
  color:var(--text-d2);
  border:1px solid rgba(228,232,239,.18);
}

/* ---------- Hero / banner ---------- */
.page-hero{
  position:relative;
  min-height:260px;
  display:flex;
  align-items:center;
  background-color:var(--ink-900);
  background-image:linear-gradient(120deg,rgba(10,13,20,.92),rgba(10,13,20,.7)),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
  padding:56px 0 48px;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-40px;
  top:-40px;
  width:280px;
  height:280px;
  background-image:radial-gradient(rgba(20,224,180,.5) 1.4px,transparent 1.4px);
  background-size:16px 16px;
  opacity:.1;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--text-d2);
  margin-bottom:18px;
}
.crumbs a{color:var(--text-d2);}
.crumbs a:hover{color:var(--primary);}
.crumbs .sep{opacity:.5;}
.page-hero h1{color:#fff;max-width:820px;}
.page-hero .hero-sub{
  margin:16px 0 0;
  color:var(--text-d2);
  font-size:16.5px;
  max-width:640px;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 18px;}

/* ---------- 板块通用 ---------- */
.section{padding:var(--sec-mob) 0;}
.section-tint{background:var(--paper-2);}
.section-dark{background:var(--ink-900);color:var(--text-d);}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--text-l2);margin:0;}
.section-dark .section-head p{color:var(--text-d2);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:1.4px;
  color:var(--primary-ink);
  text-transform:uppercase;
  margin-bottom:12px;
}
.section-dark .eyebrow{color:var(--primary);}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);border-radius:2px;}
@media screen and (min-width:640px){.section{padding:var(--sec-tab) 0;}}
@media screen and (min-width:1024px){.section{padding:var(--sec-pc) 0;}}

/* ---------- 平台卡片 ---------- */
.platform-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
}
@media screen and (min-width:640px){.platform-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
.platform-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--shadow-l);
  display:flex;
  flex-direction:column;
  gap:14px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.platform-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-l-hover);
  border-color:rgba(20,224,180,.45);
}
.platform-top{display:flex;align-items:center;gap:12px;}
.platform-icon{
  width:44px;height:44px;
  flex:0 0 auto;
  display:grid;
  place-items:center;
  border-radius:12px;
  background:rgba(20,224,180,.12);
  color:var(--primary-ink);
}
.platform-icon svg{width:22px;height:22px;}
.platform-card h3{margin:0;}
.platform-card .meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px 18px;
  font-size:14px;
  color:var(--text-l2);
  border-top:1px dashed var(--line);
  border-bottom:1px dashed var(--line);
  padding:12px 0;
}
.platform-card .meta b{color:var(--text-l);font-weight:700;}
.platform-card p{margin:0;color:var(--text-l2);font-size:15px;}
.platform-card .btn{margin-top:auto;}

/* ---------- 图文交错 ---------- */
.split{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
  align-items:center;
}
@media screen and (min-width:900px){
  .split{grid-template-columns:1.05fr 1fr;gap:56px;}
  .split.rev .split-media{order:2;}
}
.split-media img{width:100%;box-shadow:var(--shadow-l);}
.split-body h2{margin-bottom:14px;}
.split-body p{color:var(--text-l2);}
.check-list{list-style:none;padding:0;margin:0 0 8px;}
.check-list li{
  position:relative;
  padding-left:30px;
  margin-bottom:12px;
  color:var(--text-l2);
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:8px;
  width:18px;height:18px;
  border-radius:50%;
  background:rgba(20,224,180,.14);
  border:1px solid rgba(20,224,180,.5);
}
.check-list li::after{
  content:"";
  position:absolute;
  left:6px;top:12px;
  width:6px;height:9px;
  border-right:2px solid var(--primary-ink);
  border-bottom:2px solid var(--primary-ink);
  transform:rotate(40deg);
}

/* ---------- 数据条 ---------- */
.stats-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
}
@media screen and (min-width:1024px){.stats-grid{grid-template-columns:repeat(4,minmax(0,1fr));}}
.stat-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 20px;
  transition:border-color .2s ease,transform .2s ease;
}
.stat-card:hover{border-color:rgba(20,224,180,.45);transform:translateY(-2px);}
.stat-card .stat-label{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--text-l2);
  margin-bottom:10px;
}
.stat-card .stat-label svg{width:20px;height:20px;color:var(--primary-ink);}
.stat-card .stat-value{
  font-size:20px;
  font-weight:700;
  color:var(--text-l);
  font-variant-numeric:tabular-nums;
}
.stat-card .stat-note{font-size:13.5px;color:var(--text-l2);margin-top:6px;}

/* ---------- 步骤条 ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:16px;counter-reset:step;}
.step-item{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px 22px 20px 70px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.step-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-l);}
.step-item .step-no{
  position:absolute;
  left:20px;
  top:20px;
  width:32px;height:32px;
  display:grid;
  place-items:center;
  border-radius:50%;
  border:1.5px solid var(--primary);
  color:var(--primary-ink);
  font-size:13.5px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
}
.step-item h4{margin:0 0 6px;}
.step-item p{margin:0;color:var(--text-l2);font-size:15px;}

/* ---------- 手风琴 ---------- */
.acc{display:grid;gap:10px;}
.acc-item{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
  transition:border-color .2s ease;
}
.acc-item::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:var(--primary);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform .2s ease;
}
.acc-item.is-open::before{transform:scaleY(1);}
.acc-item.is-open{border-color:rgba(20,224,180,.45);}
.acc-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  background:transparent;
  border:0;
  padding:18px 20px;
  font-size:17px;
  font-weight:600;
  color:var(--text-l);
  line-height:1.5;
}
.acc-item.is-open .acc-q{color:var(--primary-ink);}
.acc-arrow{
  flex:0 0 auto;
  width:22px;height:22px;
  display:grid;
  place-items:center;
  color:var(--text-l2);
  transition:transform .2s ease,color .2s ease;
}
.acc-item.is-open .acc-arrow{transform:rotate(180deg);color:var(--primary-ink);}
.acc-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .25s ease;
}
.acc-a-inner{
  padding:0 20px 20px;
  color:var(--text-l2);
  font-size:16px;
  line-height:1.85;
}
.acc-a-inner ol{margin:8px 0 0;}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;
  background:var(--ink-800);
  border-radius:var(--r-panel);
  padding:40px 26px;
  overflow:hidden;
  box-shadow:var(--shadow-d);
  border:1px solid rgba(20,224,180,.14);
}
.cta-panel::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;bottom:0;
  background-image:radial-gradient(rgba(20,224,180,.45) 1px,transparent 1px);
  background-size:18px 18px;
  opacity:.08;
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1fr;
  gap:28px;
  align-items:center;
}
@media screen and (min-width:1024px){
  .cta-panel{padding:52px 48px;}
  .cta-inner{grid-template-columns:1.1fr auto;gap:48px;}
}
.cta-panel h2{color:#fff;margin-bottom:12px;}
.cta-panel .cta-desc{color:var(--text-d2);margin:0;max-width:460px;}
.cta-actions{display:grid;gap:12px;}
@media screen and (min-width:640px){
  .cta-actions{grid-auto-flow:column;grid-auto-columns:1fr;}
}
.cta-note{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:20px;
  font-size:13.5px;
  color:var(--text-d2);
}

/* ---------- 移动抽屉 ---------- */
.drawer-overlay{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.6);
  opacity:0;
  visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
  z-index:110;
}
.drawer-overlay.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;
  top:0;right:0;
  width:84vw;
  max-width:360px;
  height:100%;
  background:var(--ink-900);
  z-index:120;
  transform:translateX(100%);
  transition:transform .28s ease;
  display:flex;
  flex-direction:column;
  padding:22px 20px 26px;
  overflow-y:auto;
  border-left:1px solid rgba(20,224,180,.14);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{
  width:44px;height:44px;
  display:grid;place-items:center;
  background:transparent;
  border:1px solid rgba(228,232,239,.22);
  border-radius:12px;
  color:var(--text-d);
  font-size:20px;
  line-height:1;
}
.drawer-nav{display:grid;gap:2px;}
.drawer-nav a{
  display:block;
  padding:14px 10px;
  color:var(--text-d);
  font-size:16px;
  font-weight:600;
  border-bottom:1px solid rgba(228,232,239,.08);
}
.drawer-nav a.active{color:var(--primary);}
.drawer-nav a:hover{color:var(--primary);}
.drawer .btn{margin-top:22px;}
.drawer-foot{
  margin-top:auto;
  padding-top:22px;
  font-size:13px;
  color:var(--text-d2);
  line-height:1.7;
}

/* ---------- 吸底下载条 ---------- */
.dock-bar{
  position:fixed;
  left:0;right:0;bottom:0;
  height:56px;
  z-index:105;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:0 16px calc(0px + env(safe-area-inset-bottom,0px));
  background:rgba(10,13,20,.96);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-top:1px solid rgba(20,224,180,.2);
}
.dock-bar .dock-text{font-size:13.5px;color:var(--text-d2);line-height:1.4;}
.dock-bar .dock-text b{display:block;color:var(--text-d);font-size:14.5px;font-weight:700;}
.dock-bar .btn{min-height:40px;padding:0 18px;font-size:14px;}
body.has-dock{padding-bottom:56px;}
@media screen and (min-width:1024px){.dock-bar{display:none;}body.has-dock{padding-bottom:0;}}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  background:var(--ink-900);
  color:var(--text-d2);
  padding:56px 0 24px;
  font-size:14.5px;
}
.footer-stripe{
  height:1px;
  background:linear-gradient(90deg,rgba(20,224,180,0),var(--primary),rgba(20,224,180,0));
  opacity:.6;
  margin-bottom:44px;
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(20,224,180,.4) 1px,transparent 1px);
  background-size:20px 20px;
  opacity:.06;
  pointer-events:none;
}
.footer-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:34px 24px;
}
@media screen and (min-width:1024px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
}
.footer-brand{grid-column:1 / -1;}
@media screen and (min-width:1024px){.footer-brand{grid-column:auto;}}
.footer-brand .brand{color:var(--text-d);}
.footer-brand p{margin:14px 0 0;max-width:420px;line-height:1.8;}
.site-footer h4{color:var(--text-d);margin-bottom:16px;font-size:16px;font-weight:700;}
.footer-links{display:grid;gap:10px;}
.footer-links a{color:var(--text-d2);}
.footer-links a:hover{color:var(--primary);}
.footer-dl{display:flex;gap:16px;align-items:flex-start;}
.footer-qr{
  width:120px;height:120px;
  flex:0 0 auto;
  border:1px dashed rgba(20,224,180,.4);
  border-radius:12px;
  display:grid;
  place-items:center;
  text-align:center;
  font-size:12.5px;
  color:var(--text-d2);
  line-height:1.6;
}
.footer-contact{font-size:14px;line-height:2;}
.footer-bottom{
  position:relative;
  z-index:2;
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid rgba(228,232,239,.12);
  display:flex;
  flex-direction:column;
  gap:10px;
  align-items:center;
  text-align:center;
  font-size:13.5px;
}
.footer-bottom a{color:var(--text-d2);}
.footer-bottom a:hover{color:var(--primary);}
@media screen and (min-width:1024px){
  .footer-bottom{flex-direction:row;justify-content:space-between;text-align:left;}
}

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

/* roulang page: category3 */
:root{
  --ink-900:#0A0D14;--ink-800:#121826;--ink-700:#1B2231;
  --paper:#FFFFFF;--paper-2:#F4F6F8;--line:#E4E8EF;
  --primary:#14E0B4;--primary-ink:#009B7D;--primary-deep:#06231D;
  --accent:#FF3E7F;--highlight:#FFD84D;
  --text-d:#E8EDF5;--text-d2:#93A0B4;
  --text-l:#1A2030;--text-l2:#5A6478;
  --card-r:16px;--panel-r:24px;--btn-r:12px;
  --shadow-light:0 6px 20px rgba(16,24,40,.06);
  --shadow-dark:0 18px 44px rgba(0,0,0,.45);
  --sect:56px;
}
@media (min-width:768px){:root{--sect:72px}}
@media (min-width:1024px){:root{--sect:104px}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--text-l);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.85;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary-ink);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary)}
button{font-family:inherit}
h1,h2,h3,h4{font-family:inherit;color:inherit;letter-spacing:-.2px}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
body.no-scroll{overflow:hidden}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}
.section{padding:var(--sect) 0}
.section--paper{background:var(--paper-2)}
.section--tight{padding-top:calc(var(--sect) * .7);padding-bottom:calc(var(--sect) * .7)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(10,13,20,.62);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  transition:background .25s ease,box-shadow .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(10,13,20,.88);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  box-shadow:0 1px 0 rgba(228,232,239,.1);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:28px;height:28px;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);gap:3px}
.brand-mark span{border:1.5px solid var(--primary);border-radius:2px}
.brand-mark span:nth-child(1){grid-area:1/1}
.brand-mark span:nth-child(2){grid-area:1/3;border-color:var(--accent)}
.brand-mark span:nth-child(3){grid-area:3/2}
.brand-mark span:nth-child(4){grid-area:2/2;background:var(--primary);border-color:var(--primary)}
.brand-name{font-size:18px;font-weight:800;color:#fff;letter-spacing:-.3px;white-space:nowrap}
.main-nav{display:none;align-items:center;gap:2px}
@media (min-width:1024px){.main-nav{display:flex}}
.main-nav a{
  position:relative;padding:8px 12px;font-size:15px;font-weight:500;color:#C7D0DE;border-radius:999px;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:0;height:2px;border-radius:2px;background:var(--primary);transition:width .22s ease;
}
.main-nav a:hover{color:#fff}
.main-nav a.active{color:#fff}
.main-nav a.active::after{width:60%}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-dl{display:none;height:40px;min-height:40px;padding:0 20px;font-size:14px}
@media (min-width:768px){.nav-dl{display:inline-flex}}
.nav-toggle{
  width:44px;height:44px;display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:transparent;border:1px solid rgba(228,232,239,.25);border-radius:12px;cursor:pointer;
}
.nav-toggle span{width:18px;height:2px;border-radius:2px;background:var(--text-d);transition:.2s ease}
.nav-toggle:hover{border-color:var(--primary)}
@media (min-width:1024px){.nav-toggle{display:none}}

/* ---------- 抽屉导航 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);opacity:0;pointer-events:none;
  transition:opacity .28s ease;z-index:80;
}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;width:84vw;max-width:360px;height:100%;z-index:90;
  background:var(--ink-800);border-left:1px solid rgba(20,224,180,.14);
  transform:translateX(105%);transition:transform .28s ease;
  display:flex;flex-direction:column;padding:22px 20px 28px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-brand{display:flex;align-items:center;gap:10px;padding-bottom:18px;border-bottom:1px solid rgba(228,232,239,.12)}
.drawer-nav{display:flex;flex-direction:column;padding:14px 0;border-bottom:1px solid rgba(228,232,239,.12)}
.drawer-nav a{padding:13px 4px;font-size:16px;font-weight:600;color:#C7D0DE;border-radius:8px}
.drawer-nav a:hover{color:#fff}
.drawer-nav a.active{color:var(--primary)}
.drawer-cta{margin-top:20px}
.drawer-cta .btn{width:100%}
.drawer-meta{margin-top:auto;padding-top:24px;font-size:12.5px;line-height:1.9;color:var(--text-d2)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--btn-r);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,filter .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  text-align:center;
}
.btn-primary{background:var(--primary);color:var(--primary-deep)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 10px 26px rgba(20,224,180,.28);color:var(--primary-deep)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:rgba(228,232,239,.28);color:var(--text-d)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-secondary{background:#fff;border-color:var(--line);color:var(--text-l)}
.btn-secondary:hover{border-color:rgba(20,224,180,.5);color:var(--primary-ink);transform:translateY(-2px);box-shadow:var(--shadow-light)}
.btn-secondary:active{transform:translateY(0)}
.btn-block{width:100%}

/* ---------- 徽章与标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1;letter-spacing:.2px;white-space:nowrap;
}
.badge-soft{background:rgba(20,224,180,.12);color:var(--primary-ink)}
.badge-outline{border:1px solid rgba(20,224,180,.3);color:var(--primary)}
.badge-accent{background:rgba(255,62,127,.1);color:#D81C5C}
.badge-highlight{background:rgba(255,216,77,.18);color:#8A6A00}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag-row span{
  display:inline-flex;padding:4px 12px;border-radius:999px;font-size:12.5px;
  color:#B9C4D4;border:1px solid rgba(228,232,239,.16);
}

/* ---------- 页面头图 ---------- */
.page-hero{
  position:relative;overflow:hidden;color:var(--text-d);
  padding:132px 0 66px;
  background-image:
    linear-gradient(180deg,rgba(10,13,20,.9) 0%,rgba(10,13,20,.72) 55%,rgba(10,13,20,.94) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover,cover;
  background-position:center,center;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.07;
  background-image:radial-gradient(rgba(20,224,180,.9) 1px,transparent 1px);
  background-size:22px 22px;
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-d2);margin-bottom:20px}
.breadcrumb a{color:#B9C4D4}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(147,160,180,.6)}
.page-hero h1{
  font-size:clamp(28px,4.4vw,46px);font-weight:800;line-height:1.18;letter-spacing:-.5px;
  margin:0 0 14px;color:#fff;
}
.page-hero .hero-sub{font-size:clamp(15px,1.6vw,17px);color:#C3CCDA;max-width:640px;margin:0}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.hero-meta .badge{border:1px solid rgba(20,224,180,.3);color:var(--primary)}
.page-hero--tall{padding-bottom:86px}

/* ---------- 板块标题 ---------- */
.sec-head{max-width:740px;margin-bottom:44px}
.sec-head h2{font-size:clamp(22px,3vw,32px);font-weight:700;line-height:1.3;margin:0 0 12px;letter-spacing:-.4px}
.sec-head p{color:var(--text-l2);font-size:16px;margin:0}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- 安装准备 ---------- */
.prep-media{
  border-radius:var(--card-r);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-light);background:var(--paper);
}
.prep-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover}
.check-list{list-style:none;display:grid;gap:12px;margin-top:26px}
.check-list li{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--paper-2);border:1px solid var(--line);border-radius:14px;padding:16px 18px;
  transition:border-color .2s ease,transform .2s ease,background .2s ease;
}
.check-list li:hover{border-color:rgba(20,224,180,.45);transform:translateY(-2px);background:#fff}
.check-list i{color:var(--primary-ink);font-size:16px;margin-top:5px;flex-shrink:0}
.check-list strong{display:block;font-size:16px;font-weight:700;color:var(--text-l);margin-bottom:2px}
.check-list span{font-size:14.5px;color:var(--text-l2);line-height:1.75}

/* ---------- 步骤条 ---------- */
.flow{list-style:none;position:relative;margin-top:8px}
.flow-item{position:relative;display:flex;gap:20px;padding-bottom:34px}
.flow-item:last-child{padding-bottom:0}
.flow-item::before{
  content:"";position:absolute;left:21px;top:48px;bottom:8px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(20,224,180,.5),rgba(20,224,180,.06));
}
.flow-item:last-child::before{display:none}
.flow-num{
  flex:0 0 44px;height:44px;border-radius:999px;background:#fff;
  border:1.5px solid var(--primary);color:var(--primary-ink);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;font-variant-numeric:tabular-nums;position:relative;z-index:1;
}
.flow-body{
  flex:1;min-width:0;background:#fff;border:1px solid var(--line);border-radius:var(--card-r);
  padding:22px 24px;box-shadow:var(--shadow-light);transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.flow-body:hover{border-color:rgba(20,224,180,.4);transform:translateY(-2px);box-shadow:0 12px 28px rgba(16,24,40,.09)}
.flow-body h3{font-size:18px;font-weight:700;margin:0 0 10px;display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.flow-body p{font-size:15.5px;color:var(--text-l2);margin:0 0 12px}
.flow-points{list-style:none;display:grid;gap:8px}
.flow-points li{position:relative;padding-left:20px;font-size:14.5px;color:var(--text-l2);line-height:1.7}
.flow-points li::before{
  content:"";position:absolute;left:4px;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 3px rgba(20,224,180,.15);
}

/* ---------- 校验面板 ---------- */
.verify-panel{
  position:relative;overflow:hidden;color:var(--text-d);
  background:var(--ink-800);border:1px solid rgba(20,224,180,.14);border-radius:var(--panel-r);
  padding:38px 32px;box-shadow:var(--shadow-dark);
}
.verify-panel::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.08;
  background-image:radial-gradient(rgba(20,224,180,.9) 1px,transparent 1px);
  background-size:20px 20px;
}
.verify-panel > *{position:relative;z-index:1}
.verify-panel h2{font-size:clamp(20px,2.4vw,28px);font-weight:700;margin:0 0 10px;color:#fff}
.verify-panel > p{color:var(--text-d2);font-size:15.5px;margin:0}
.verify-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:28px}
@media (min-width:768px){.verify-grid{grid-template-columns:repeat(4,1fr)}}
.verify-item{border-left:2px solid rgba(20,224,180,.35);padding-left:14px}
.verify-item span{display:block;font-size:13px;color:var(--text-d2);letter-spacing:.3px}
.verify-item strong{
  display:block;margin-top:6px;font-size:20px;font-weight:700;color:#fff;
  font-variant-numeric:tabular-nums;letter-spacing:-.3px;
}
.verify-note{margin-top:24px;font-size:13.5px;color:var(--text-d2);line-height:1.8}

/* ---------- 报错卡片 ---------- */
.err-grid{display:grid;gap:18px;grid-template-columns:1fr}
@media (min-width:768px){.err-grid{grid-template-columns:repeat(2,1fr)}}
.err-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--card-r);
  padding:24px;box-shadow:var(--shadow-light);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.err-card:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(16,24,40,.1);border-color:rgba(20,224,180,.35)}
.err-card h3{font-size:17px;font-weight:700;margin:0 0 10px;display:flex;gap:10px;align-items:flex-start;line-height:1.5}
.err-card h3 i{color:var(--accent);font-size:15px;margin-top:5px;flex-shrink:0}
.err-card p{margin:0;font-size:14.8px;color:var(--text-l2);line-height:1.8}

/* ---------- 建议列表 ---------- */
.advice-grid{display:grid;gap:18px;grid-template-columns:1fr;margin-top:8px}
@media (min-width:768px){.advice-grid{grid-template-columns:repeat(3,1fr)}}
.advice-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--card-r);
  padding:24px;transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.advice-card:hover{background:#fff;border-color:rgba(20,224,180,.4);transform:translateY(-2px)}
.advice-card .advice-ico{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(20,224,180,.12);color:var(--primary-ink);font-size:16px;margin-bottom:14px;
}
.advice-card h3{font-size:17px;font-weight:700;margin:0 0 8px}
.advice-card p{font-size:14.8px;color:var(--text-l2);margin:0}

/* ---------- CTA 面板 ---------- */
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--panel-r);
  background:var(--ink-800);border:1px solid rgba(20,224,180,.14);
  box-shadow:var(--shadow-dark);color:var(--text-d);
  padding:40px 32px;display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;
}
.cta-panel::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.07;
  background-image:radial-gradient(rgba(20,224,180,.9) 1px,transparent 1px);
  background-size:22px 22px;
}
.cta-copy{position:relative;z-index:1;flex:1 1 380px;min-width:0}
.cta-copy h2{font-size:clamp(21px,2.6vw,30px);font-weight:700;color:#fff;margin:14px 0 10px;line-height:1.35}
.cta-copy p{color:var(--text-d2);font-size:15.5px;margin:0;max-width:520px}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px;flex:1 1 320px;justify-content:flex-end}
@media (max-width:767px){
  .cta-actions{justify-content:stretch}
  .cta-actions .btn{width:100%}
}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--ink-900);color:var(--text-d2);margin-top:0}
.footer-stripe{
  height:1px;width:100%;
  background:linear-gradient(90deg,rgba(20,224,180,0) 0%,rgba(20,224,180,.85) 50%,rgba(20,224,180,0) 100%);
}
.footer-grid{
  position:relative;display:grid;grid-template-columns:1fr;gap:34px;
  padding-top:56px;padding-bottom:34px;
}
.footer-grid::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:radial-gradient(rgba(20,224,180,.9) 1px,transparent 1px);
  background-size:24px 24px;
}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}}
.footer-grid > *{position:relative;z-index:1}
.footer-brand{grid-column:1/-1}
@media (min-width:1024px){.footer-brand{grid-column:auto}}
.footer-brand p{font-size:14.5px;line-height:1.85;color:var(--text-d2);margin:16px 0 0;max-width:360px}
.site-footer h4{font-size:15px;font-weight:700;color:#fff;margin:0 0 16px;letter-spacing:.2px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14.5px;color:var(--text-d2)}
.footer-links a:hover{color:var(--primary)}
.footer-dl{display:flex;gap:16px;align-items:flex-start}
.footer-qr{
  width:120px;height:120px;flex:0 0 120px;border-radius:12px;
  border:1px solid rgba(228,232,239,.25);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12.5px;line-height:1.7;color:var(--text-d2);
  background:rgba(20,224,180,.06);
}
.footer-contact{font-size:13.5px;line-height:2;color:var(--text-d2)}
.footer-bottom{
  position:relative;z-index:1;border-top:1px solid rgba(228,232,239,.1);
  padding-top:20px;padding-bottom:28px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#7C8798;
}
.footer-bottom a{color:#9AA6B8}
.footer-bottom a:hover{color:var(--primary)}
@media (max-width:767px){
  .footer-bottom{justify-content:center;text-align:center}
  .footer-dl{flex-direction:column}
}

/* ---------- 断点微调 ---------- */
@media (max-width:1023px){
  .flow-item{gap:16px}
  .flow-body{padding:18px 18px}
}
@media (max-width:639px){
  body{font-size:15.5px}
  .page-hero{padding:116px 0 54px}
  .page-hero .hero-sub{font-size:15px}
  .verify-panel{padding:28px 22px}
  .cta-panel{padding:32px 22px}
  .sec-head{margin-bottom:30px}
  .flow-num{flex:0 0 38px;height:38px;font-size:13.5px}
  .flow-item::before{left:18px;top:42px}
  .flow-body h3{font-size:17px}
  .verify-item strong{font-size:18px}
}

/* roulang page: category4 */
/* ============ 设计变量 ============ */
:root{
  --ink-900:#0A0D14;
  --ink-800:#121826;
  --ink-700:#1B2231;
  --paper:#FFFFFF;
  --paper-2:#F4F6F8;
  --line:#E4E8EF;
  --primary:#14E0B4;
  --primary-ink:#009B7D;
  --primary-deep:#06231D;
  --accent:#FF3E7F;
  --highlight:#FFD84D;
  --text-d:#E8EDF5;
  --text-d-2:#93A0B4;
  --text-l:#1A2030;
  --text-l-2:#5A6478;
  --radius-card:16px;
  --radius-panel:24px;
  --radius-btn:12px;
  --shadow-card:0 6px 20px rgba(16,24,40,.06);
  --shadow-card-hover:0 14px 34px rgba(16,24,40,.12);
  --shadow-dark:0 18px 44px rgba(0,0,0,.45);
  --container:1200px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}

/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text-l);
  background:var(--paper);
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1{font-size:clamp(28px,4.8vw,52px);font-weight:800;line-height:1.18;letter-spacing:-.5px;}
h2{font-size:clamp(22px,3vw,34px);font-weight:700;line-height:1.3;letter-spacing:-.3px;}
h3{font-size:20px;font-weight:700;line-height:1.45;}
h4{font-size:17px;font-weight:600;line-height:1.5;}
p{line-height:1.85;}
.num,.tabular{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(20,224,180,.28);}

/* 覆盖 Foundation 默认 */
a:hover,a:focus{color:var(--primary-ink);}
.button,.button.primary{background:var(--primary);color:var(--primary-deep);border-radius:var(--radius-btn);}
input,textarea,select{box-shadow:none;}

/* ============ 布局容器 ============ */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
.section{padding:56px 0;}
.section-tight{padding:44px 0;}
.section-head{max-width:820px;margin-bottom:32px;}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--text-l-2);font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1px;
  color:var(--primary-ink);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);border-radius:2px;display:block;}

/* ============ 按钮体系 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:16px;font-weight:700;line-height:1;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:var(--primary-deep);box-shadow:0 6px 18px rgba(20,224,180,.18);}
.btn-primary:hover,.btn-primary:focus{background:#2BE9C0;color:var(--primary-deep);transform:translateY(-2px);box-shadow:0 10px 26px rgba(20,224,180,.28);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--text-l);border:1px solid var(--line);}
.btn-ghost:hover,.btn-ghost:focus{border-color:rgba(0,155,125,.45);color:var(--primary-ink);transform:translateY(-2px);}
.btn-ghost-dark{background:transparent;color:var(--text-d);border:1px solid rgba(20,224,180,.4);}
.btn-ghost-dark:hover,.btn-ghost-dark:focus{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary-ink);font-weight:700;font-size:15px;
}
.link-arrow span{transition:transform .18s ease;}
.link-arrow:hover span,.link-arrow:focus span{transform:translateX(3px);}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:13px;font-weight:600;line-height:1;
  background:rgba(20,224,180,.12);color:var(--primary-ink);
}
.badge-accent{background:rgba(255,62,127,.12);color:#D6246A;}
.badge-highlight{background:rgba(255,216,77,.22);color:#8A6A00;}
.badge-dark{background:rgba(255,255,255,.04);color:var(--text-d);border:1px solid rgba(20,224,180,.3);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag-row span{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;font-size:13px;
  background:rgba(20,224,180,.1);color:var(--text-d);border:1px solid rgba(20,224,180,.16);
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--ink-900);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:background-color .25s ease,backdrop-filter .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(10,13,20,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
  border-bottom-color:rgba(255,255,255,.04);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;min-height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-name{color:#fff;font-size:18px;font-weight:800;letter-spacing:.2px;}
.brand-mark{
  position:relative;width:26px;height:26px;display:grid;
  grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:3px;
  padding:2px;border:1px solid rgba(20,224,180,.55);border-radius:6px;flex-shrink:0;
}
.brand-mark span{background:var(--primary);border-radius:2px;display:block;}
.brand-mark span:nth-child(3){background:var(--accent);}
.brand-mark span:nth-child(4){background:transparent;border:1px solid rgba(20,224,180,.45);}
.main-nav{display:flex;align-items:center;gap:28px;}
.main-nav a{
  position:relative;padding:6px 0;
  color:var(--text-d-2);font-size:15px;font-weight:600;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;bottom:0;
  width:60%;height:2px;border-radius:2px;background:var(--primary);
  transform:translateX(-50%) scaleX(0);transform-origin:center;
  transition:transform .2s ease;
}
.main-nav a:hover,.main-nav a:focus{color:#fff;}
.main-nav a:hover::after,.main-nav a:focus::after{transform:translateX(-50%) scaleX(1);}
.main-nav a.active{color:#fff;}
.main-nav a.active::after{transform:translateX(-50%) scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.12);
}
.nav-toggle span{
  display:block;width:18px;height:2px;background:#fff;border-radius:2px;position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;border-radius:2px;
  transition:transform .2s ease;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:80;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;
  background:var(--ink-800);z-index:90;
  transform:translateX(100%);transition:transform .28s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:24px 22px 28px;
  border-left:1px solid rgba(20,224,180,.14);
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{width:40px;height:40px;border-radius:10px;color:var(--text-d);font-size:22px;line-height:1;border:1px solid rgba(255,255,255,.12);}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  padding:14px 4px;color:var(--text-d);font-size:16px;font-weight:600;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.drawer-nav a.active{color:var(--primary);}
.drawer-foot{margin-top:auto;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);}
.drawer-foot small{display:block;margin-top:14px;color:var(--text-d-2);font-size:12px;line-height:1.7;}

/* ============ 页面头图 ============ */
.page-hero{
  position:relative;overflow:hidden;
  min-height:260px;display:flex;align-items:flex-end;
  padding:56px 0 40px;
  background-image:linear-gradient(115deg,rgba(10,13,20,.95) 0%,rgba(10,13,20,.78) 52%,rgba(10,13,20,.7) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  color:var(--text-d);
}
.page-hero::after{
  content:"";position:absolute;right:-40px;top:-30px;width:340px;height:340px;
  background-image:radial-gradient(rgba(20,224,180,.75) 1px,transparent 1px);
  background-size:18px 18px;opacity:.09;pointer-events:none;
}
.page-hero-inner{position:relative;z-index:2;max-width:820px;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-d-2);margin-bottom:18px;
}
.breadcrumb a{color:var(--text-d-2);}
.breadcrumb a:hover,.breadcrumb a:focus{color:var(--primary);}
.breadcrumb .sep{color:rgba(147,160,180,.6);}
.page-hero h1{color:#fff;margin-bottom:14px;}
.page-hero .hero-desc{color:var(--text-d-2);font-size:16px;max-width:640px;}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}

/* ============ 安全能力卡片 ============ */
.card-grid{display:grid;gap:20px;grid-template-columns:1fr;}
.card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);border-color:rgba(0,155,125,.28);}
.card-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(20,224,180,.12);color:var(--primary-ink);margin-bottom:16px;
}
.card-icon svg{width:24px;height:24px;}
.card h3{margin-bottom:10px;}
.card p{color:var(--text-l-2);font-size:15px;}
.card-list{margin-top:14px;}
.card-list li{
  position:relative;padding-left:20px;font-size:14px;color:var(--text-l-2);line-height:1.8;
}
.card-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--primary);opacity:.85;
}

/* ============ 编号步骤 ============ */
.steps-shell{
  background:var(--paper-2);border-radius:var(--radius-panel);
  padding:36px 24px;border:1px solid var(--line);
}
.step-list{display:grid;gap:18px;}
.step{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 22px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-3px);border-color:rgba(0,155,125,.3);box-shadow:var(--shadow-card-hover);}
.step-num{
  flex:0 0 36px;width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:2px solid var(--primary);color:var(--primary-ink);
  font-size:14px;font-weight:800;font-variant-numeric:tabular-nums;
}
.step-body h3{font-size:18px;margin-bottom:6px;}
.step-body p{font-size:15px;color:var(--text-l-2);}

/* ============ 图文交错区块 ============ */
.duo{display:grid;gap:32px;align-items:center;grid-template-columns:1fr;}
.duo-media{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);}
.duo-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .35s ease;}
.duo-media:hover img{transform:scale(1.03);}
.duo-body h2{margin-bottom:14px;}
.duo-body > p{color:var(--text-l-2);margin-bottom:18px;}
.risk-list{display:grid;gap:12px;}
.risk-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:16px 18px;border:1px solid var(--line);border-radius:12px;background:var(--paper);
  transition:border-color .2s ease,transform .2s ease;
}
.risk-list li:hover{border-color:rgba(255,62,127,.35);transform:translateX(3px);}
.risk-list .rk-mark{
  flex:0 0 22px;width:22px;height:22px;border-radius:50%;margin-top:3px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,62,127,.12);color:var(--accent);font-size:13px;font-weight:800;
}
.risk-list strong{display:block;font-size:16px;font-weight:700;margin-bottom:2px;}
.risk-list span{display:block;font-size:14px;color:var(--text-l-2);}

/* ============ 自查清单 ============ */
.check-panel{
  background:var(--ink-800);border-radius:var(--radius-panel);color:var(--text-d);
  padding:36px 24px;position:relative;overflow:hidden;
  box-shadow:var(--shadow-dark);border:1px solid rgba(20,224,180,.14);
}
.check-panel::after{
  content:"";position:absolute;right:-30px;bottom:-40px;width:280px;height:280px;
  background-image:radial-gradient(rgba(20,224,180,.8) 1px,transparent 1px);
  background-size:18px 18px;opacity:.08;pointer-events:none;
}
.check-panel h2{color:#fff;margin-bottom:12px;}
.check-panel > p{color:var(--text-d-2);max-width:680px;}
.check-grid{display:grid;gap:16px;margin-top:26px;position:relative;z-index:2;grid-template-columns:1fr;}
.check-item{
  background:rgba(255,255,255,.03);border:1px solid rgba(20,224,180,.16);
  border-radius:var(--radius-card);padding:20px 20px;
  transition:border-color .2s ease,transform .2s ease,background-color .2s ease;
}
.check-item:hover{border-color:rgba(20,224,180,.45);transform:translateY(-3px);background:rgba(20,224,180,.05);}
.check-item h4{color:#fff;display:flex;align-items:center;gap:10px;margin-bottom:8px;}
.check-item h4 em{
  font-style:normal;font-size:12px;font-weight:700;color:var(--primary);
  border:1px solid rgba(20,224,180,.35);border-radius:999px;padding:1px 9px;
}
.check-item p{font-size:14px;color:var(--text-d-2);}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:10px;max-width:880px;}
.faq-item{
  background:var(--paper);border:1px solid var(--line);border-radius:12px;
  overflow:hidden;position:relative;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary);
  transform:scaleY(0);transform-origin:top;transition:transform .2s ease;
}
.faq-item.open{border-color:rgba(0,155,125,.32);box-shadow:var(--shadow-card);}
.faq-item.open::before{transform:scaleY(1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-size:17px;font-weight:600;color:var(--text-l);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--primary-ink);}
.faq-item.open .faq-q{color:var(--primary-ink);}
.faq-arrow{
  flex:0 0 22px;width:22px;height:22px;position:relative;
  transition:transform .2s ease;
}
.faq-arrow::before,.faq-arrow::after{
  content:"";position:absolute;top:50%;width:10px;height:2px;background:currentColor;border-radius:2px;
}
.faq-arrow::before{left:1px;transform:rotate(45deg);}
.faq-arrow::after{right:1px;transform:rotate(-45deg);}
.faq-item.open .faq-arrow{transform:rotate(180deg);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .25s ease;
}
.faq-a-inner{
  padding:0 22px 22px;color:var(--text-l-2);font-size:16px;
}
.faq-a-inner ol{margin-top:10px;counter-reset:faq;}
.faq-a-inner ol li{
  position:relative;padding-left:24px;margin-bottom:6px;
  counter-increment:faq;font-size:15px;
}
.faq-a-inner ol li::before{
  content:counter(faq);position:absolute;left:0;top:2px;
  width:18px;height:18px;border-radius:50%;background:rgba(20,224,180,.14);
  color:var(--primary-ink);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}

/* ============ CTA ============ */
.cta-panel{
  position:relative;overflow:hidden;
  background:var(--ink-800);border-radius:var(--radius-panel);
  border:1px solid rgba(20,224,180,.14);
  box-shadow:var(--shadow-dark);
  padding:38px 24px;color:var(--text-d);
}
.cta-panel::before{
  content:"";position:absolute;left:-60px;top:-60px;width:300px;height:300px;
  background:radial-gradient(circle,rgba(20,224,180,.22),transparent 68%);
  pointer-events:none;
}
.cta-panel::after{
  content:"";position:absolute;right:-20px;bottom:-30px;width:240px;height:240px;
  background-image:radial-gradient(rgba(20,224,180,.8) 1px,transparent 1px);
  background-size:18px 18px;opacity:.08;pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:grid;gap:24px;}
.cta-inner h2{color:#fff;margin-bottom:10px;}
.cta-inner p{color:var(--text-d-2);font-size:15px;max-width:520px;}
.cta-actions{display:grid;gap:12px;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;background:var(--ink-900);color:var(--text-d);
  margin-top:8px;overflow:hidden;
}
.footer-stripe{
  height:1px;width:100%;
  background:linear-gradient(90deg,transparent,var(--primary),rgba(255,62,127,.6),transparent);
  opacity:.8;
}
.site-footer::after{
  content:"";position:absolute;right:-40px;top:40px;width:260px;height:260px;
  background-image:radial-gradient(rgba(20,224,180,.8) 1px,transparent 1px);
  background-size:18px 18px;opacity:.06;pointer-events:none;
}
.footer-grid{
  position:relative;z-index:2;
  display:grid;gap:32px;padding-top:52px;padding-bottom:40px;
  grid-template-columns:1fr;
}
.footer-brand p{color:var(--text-d-2);font-size:14px;margin-top:14px;max-width:340px;}
.footer-grid h4{color:#fff;font-size:16px;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:var(--text-d-2);font-size:14px;}
.footer-links a:hover,.footer-links a:focus{color:var(--primary);}
.footer-dl{display:flex;gap:16px;align-items:flex-start;flex-wrap:wrap;}
.footer-qr{
  width:120px;height:120px;border:1px solid rgba(20,224,180,.3);border-radius:12px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;color:var(--text-d-2);line-height:1.6;
  background:rgba(255,255,255,.03);
}
.footer-contact{font-size:14px;color:var(--text-d-2);line-height:1.9;}
.footer-bottom{
  position:relative;z-index:2;
  display:flex;flex-direction:column;gap:10px;
  padding-top:20px;padding-bottom:28px;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;color:var(--text-d-2);text-align:center;
}
.footer-bottom a{color:var(--text-d-2);}
.footer-bottom a:hover,.footer-bottom a:focus{color:var(--primary);}

/* ============ 断点 ============ */
@media (min-width:640px){
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .check-grid{grid-template-columns:repeat(2,1fr);}
  .cta-actions{grid-template-columns:repeat(2,auto);justify-content:start;}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
}
@media (min-width:1024px){
  .container{padding-left:32px;padding-right:32px;}
  .section{padding:96px 0;}
  .section-tight{padding:72px 0;}
  .page-hero{min-height:280px;padding:72px 0 52px;}
  .card-grid{grid-template-columns:repeat(4,1fr);}
  .step-list{grid-template-columns:repeat(2,1fr);}
  .duo{grid-template-columns:1.05fr .95fr;gap:48px;}
  .duo.reverse .duo-media{order:2;}
  .check-grid{grid-template-columns:repeat(2,1fr);}
  .cta-panel{padding:52px 48px;}
  .cta-inner{grid-template-columns:1.2fr .8fr;align-items:center;}
  .cta-actions{justify-content:flex-end;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-top:64px;padding-bottom:48px;}
  .footer-bottom{flex-direction:row;justify-content:space-between;text-align:left;padding-bottom:32px;}
}
@media (min-width:1280px){
  .section{padding:110px 0;}
}
@media (max-width:1023px){
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .nav-dl{display:none;}
}
@media (max-width:639px){
  .section{padding:56px 0;}
  .page-hero{padding:44px 0 34px;}
  .check-panel{padding:28px 20px;}
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-a-inner{padding:0 18px 18px;}
  .btn{padding:0 20px;font-size:15px;}
}

/* roulang page: category5 */
:root{
  --ink-900:#0A0D14;
  --ink-800:#121826;
  --ink-700:#1B2231;
  --paper:#FFFFFF;
  --paper-2:#F4F6F8;
  --line:#E4E8EF;
  --primary:#14E0B4;
  --primary-ink:#009B7D;
  --primary-deep:#06231D;
  --accent:#FF3E7F;
  --highlight:#FFD84D;
  --text-d:#E8EDF5;
  --text-d-2:#93A0B4;
  --text-l:#1A2030;
  --text-l-2:#5A6478;
  --rc:16px;
  --rp:24px;
  --rb:12px;
  --shadow-card:0 6px 20px rgba(16,24,40,.06);
  --shadow-card-hover:0 14px 32px rgba(16,24,40,.12);
  --shadow-panel:0 18px 44px rgba(0,0,0,.45);
  --shadow-primary:0 10px 26px rgba(20,224,180,.28);
  --container:1200px;
}

/* ===== base / reset ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-l);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote{margin:0;font-family:inherit;}
h1,h2,h3,h4,h5,h6{color:var(--text-l);font-weight:700;line-height:1.3;}
ul,ol{padding-left:0;list-style:none;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--primary-ink);text-decoration:none;transition:color .2s ease,border-color .2s ease;}
a:hover{color:var(--primary);}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
::selection{background:rgba(20,224,180,.28);}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}

.section{padding:64px 0;}
@media (min-width:640px){.section{padding:76px 0;}}
@media (min-width:1024px){.section{padding:104px 0;}}
.section-alt{background:var(--paper-2);}

.section-head{max-width:720px;margin-bottom:36px;}
.section-head h2{font-size:clamp(22px,3vw,34px);letter-spacing:-.3px;}
.section-head p{margin-top:12px;color:var(--text-l-2);font-size:16px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--primary-ink);text-transform:uppercase;margin-bottom:14px;}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);display:inline-block;border-radius:2px;}

/* ===== header / nav ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,13,20,.94);
  border-bottom:1px solid rgba(228,232,239,.08);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(10,13,20,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom-color:rgba(228,232,239,.14);
  box-shadow:0 12px 30px rgba(0,0,0,.35);
}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:26px;height:26px;display:grid;grid-template-columns:repeat(2,1fr);grid-template-rows:repeat(2,1fr);gap:4px;flex:0 0 auto;}
.brand-mark span{border:1.5px solid var(--primary);border-radius:3px;display:block;}
.brand-mark span:nth-child(4){border-color:transparent;background:var(--accent);opacity:.9;}
.brand-name{font-size:18px;font-weight:800;letter-spacing:.2px;color:#fff;white-space:nowrap;}
.main-nav{display:none;margin-left:auto;align-items:center;gap:26px;}
.main-nav a{
  position:relative;color:var(--text-d-2);font-size:15px;font-weight:600;
  padding:6px 0;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;width:60%;
  margin:0 auto;background:var(--primary);border-radius:2px;
  transform:scaleX(0);transform-origin:center;transition:transform .22s ease;
}
.main-nav a:hover{color:var(--text-d);}
.main-nav a.active{color:#fff;}
.main-nav a.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.main-nav + .header-actions{margin-left:0;}
@media (min-width:1024px){
  .main-nav{display:flex;}
  .nav-toggle{display:none;}
}
.nav-toggle{
  width:44px;height:44px;border-radius:12px;border:1px solid rgba(228,232,239,.18);
  background:rgba(228,232,239,.04);display:inline-flex;flex-direction:column;
  align-items:center;justify-content:center;gap:5px;cursor:pointer;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-d);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.nav-overlay{
  position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:110;
  opacity:0;pointer-events:none;transition:opacity .28s ease;
}
.nav-overlay.is-open{opacity:1;pointer-events:auto;}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;z-index:120;
  background:var(--ink-800);border-left:1px solid rgba(20,224,180,.18);
  padding:24px 22px 32px;display:flex;flex-direction:column;
  transform:translateX(105%);transition:transform .3s ease;overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid rgba(228,232,239,.18);
  background:transparent;color:var(--text-d);font-size:16px;cursor:pointer;line-height:1;
}
.drawer-link{
  display:block;padding:14px 4px;color:var(--text-d-2);font-size:16px;font-weight:600;
  border-bottom:1px solid rgba(228,232,239,.08);
}
.drawer-link:hover{color:var(--text-d);}
.drawer-link.active{color:var(--primary);}
.drawer-divider{height:1px;background:rgba(228,232,239,.12);margin:20px 0;}
.drawer-foot{margin-top:auto;font-size:13px;color:var(--text-d-2);line-height:1.9;}
body.nav-locked{overflow:hidden;}

/* ===== buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--rb);font-size:15px;font-weight:700;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--primary);color:var(--primary-deep);}
.btn-primary:hover{background:#22eabf;color:var(--primary-deep);transform:translateY(-2px);box-shadow:var(--shadow-primary);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-outline{background:transparent;border-color:rgba(20,224,180,.4);color:var(--primary-ink);}
.btn-outline:hover{background:rgba(20,224,180,.08);color:var(--primary-ink);transform:translateY(-2px);}
.btn-dark-ghost{background:rgba(255,255,255,.04);border-color:rgba(228,232,239,.24);color:var(--text-d);}
.btn-dark-ghost:hover{background:rgba(20,224,180,.1);border-color:rgba(20,224,180,.5);color:#fff;transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:15px;color:var(--primary-ink);}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(3px);}

.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:13px;font-weight:700;line-height:1;
}
.badge-primary{background:rgba(20,224,180,.12);color:var(--primary-ink);}
.badge-dark{background:rgba(20,224,180,.08);border:1px solid rgba(20,224,180,.3);color:var(--primary);}
.badge-highlight{background:rgba(255,216,77,.16);color:#8a6b00;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag-row span{
  font-size:13px;color:var(--text-d-2);border:1px solid rgba(228,232,239,.16);
  padding:4px 12px;border-radius:999px;line-height:1.6;
}

/* ===== page hero ===== */
.page-hero{
  position:relative;overflow:hidden;background:var(--ink-900);
  padding:52px 0 46px;display:flex;align-items:center;
}
@media (min-width:1024px){.page-hero{padding:72px 0 60px;}}
.page-hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.34;filter:saturate(.95);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,13,20,.8) 0%,rgba(10,13,20,.95) 100%);
}
.page-hero .dots{
  position:absolute;inset:0;opacity:.07;z-index:1;
  background-image:radial-gradient(rgba(20,224,180,.9) 1px,transparent 1px);
  background-size:24px 24px;
}
.page-hero-inner{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-d-2);margin-bottom:18px;flex-wrap:wrap;}
.breadcrumb a{color:var(--text-d-2);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--text-d);font-weight:600;}
.page-hero h1{
  color:#fff;font-size:clamp(28px,4.8vw,52px);font-weight:800;line-height:1.18;
  letter-spacing:-.5px;margin:16px 0 0;
}
.page-hero-sub{color:var(--text-d-2);font-size:16px;margin-top:14px;max-width:640px;}

/* ===== jump index ===== */
.jump-grid{margin-top:-8px;}
.jump-card{
  position:relative;display:block;background:#fff;border:1px solid var(--line);
  border-radius:var(--rc);padding:26px 26px 24px;height:100%;
  box-shadow:var(--shadow-card);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.jump-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);border-color:rgba(20,224,180,.45);color:inherit;}
.jump-card h3{font-size:19px;margin-bottom:8px;}
.jump-card p{color:var(--text-l-2);font-size:15px;}
.jump-num{
  display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:26px;
  padding:0 10px;border-radius:999px;background:rgba(20,224,180,.12);color:var(--primary-ink);
  font-size:13px;font-weight:800;font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.jump-meta{display:flex;align-items:center;gap:10px;margin-top:16px;font-size:14px;color:var(--text-l-2);}
.jump-meta .arrow{margin-left:auto;color:var(--primary-ink);font-weight:700;transition:transform .2s ease;}
.jump-card:hover .arrow{transform:translateX(4px);}
.jump-card-lg{padding:34px 32px 32px;background:linear-gradient(150deg,#fff 0%,#F2FBF8 100%);}
.jump-card-lg h3{font-size:23px;}
.jump-stack{display:grid;gap:20px;height:100%;grid-auto-rows:1fr;}

/* ===== faq search ===== */
.faq-tools{
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;
  background:#fff;border:1px solid var(--line);border-radius:var(--rc);
  padding:18px 20px;box-shadow:var(--shadow-card);margin-bottom:40px;
}
.faq-search-field{position:relative;flex:1 1 320px;min-width:0;}
.faq-search-field i{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--text-l-2);font-size:14px;}
.faq-search-field input{
  width:100%;height:48px;border-radius:var(--rb);border:1px solid var(--line);
  padding:0 16px 0 42px;font-size:15px;color:var(--text-l);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-search-field input::placeholder{color:var(--text-l-2);font-size:14px;}
.faq-search-field input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(20,224,180,.12);outline:none;}
.faq-search-hint{font-size:14px;color:var(--text-l-2);}
.faq-search-hint b{color:var(--primary-ink);font-variant-numeric:tabular-nums;}

/* ===== faq accordion ===== */
.faq-group{margin-bottom:56px;}
.faq-group:last-of-type{margin-bottom:0;}
.faq-group-head{display:flex;gap:16px;align-items:flex-start;margin-bottom:22px;}
.faq-group-num{
  flex:0 0 auto;width:46px;height:46px;border-radius:14px;border:1px solid rgba(20,224,180,.4);
  display:inline-flex;align-items:center;justify-content:center;color:var(--primary-ink);
  font-weight:800;font-size:15px;font-variant-numeric:tabular-nums;background:rgba(20,224,180,.06);
}
.faq-group-head h2{font-size:clamp(21px,2.6vw,28px);letter-spacing:-.3px;}
.faq-group-desc{font-size:14px;color:var(--text-l-2);margin-top:4px;}

.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;
  overflow:hidden;position:relative;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(20,224,180,.32);}
.faq-item.is-open{border-color:rgba(20,224,180,.55);box-shadow:var(--shadow-card);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;gap:16px;text-align:left;
  padding:22px 24px;background:transparent;border:0;cursor:pointer;
  font-size:18px;font-weight:700;color:var(--text-l);line-height:1.6;position:relative;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--primary);
  transform:scaleY(0);transform-origin:center;transition:transform .2s ease;
}
.faq-item.is-open .faq-q::before{transform:scaleY(1);}
.faq-item.is-open .faq-q{color:var(--primary-ink);}
.faq-index{
  flex:0 0 auto;font-size:13px;font-weight:800;color:var(--primary-ink);
  background:rgba(20,224,180,.12);border-radius:999px;padding:5px 11px;
  font-variant-numeric:tabular-nums;line-height:1.4;margin-top:3px;
}
.faq-q-text{flex:1 1 auto;min-width:0;}
.faq-arrow{
  flex:0 0 auto;width:22px;height:22px;position:relative;margin-top:6px;
  transition:transform .2s ease;
}
.faq-arrow::before{
  content:"";position:absolute;left:4px;top:4px;width:9px;height:9px;
  border-right:2px solid var(--text-l-2);border-bottom:2px solid var(--text-l-2);
  transform:rotate(45deg);
}
.faq-item.is-open .faq-arrow{transform:rotate(180deg);}
.faq-item.is-open .faq-arrow::before{border-color:var(--primary-ink);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a-inner{padding:0 26px 26px 66px;color:var(--text-l-2);font-size:16px;line-height:1.9;}
.faq-a-inner p + p{margin-top:12px;}
.faq-a-inner strong{color:var(--text-l);}
.faq-empty{
  text-align:center;padding:56px 20px;border:1px dashed var(--line);border-radius:var(--rc);
  background:var(--paper-2);
}
.faq-empty i{font-size:44px;color:var(--primary);}
.faq-empty p{margin:14px 0 0;font-size:14px;color:var(--text-l-2);}

/* ===== checklist ===== */
.check-grid{margin-top:8px;}
.check-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--rc);
  padding:28px 26px;height:100%;box-shadow:var(--shadow-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.check-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);border-color:rgba(20,224,180,.4);}
.check-icon{
  width:44px;height:44px;border-radius:12px;background:rgba(20,224,180,.12);
  color:var(--primary-ink);display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;margin-bottom:16px;
}
.check-card h3{font-size:18px;margin-bottom:12px;}
.check-list li{
  position:relative;padding-left:20px;color:var(--text-l-2);font-size:15px;line-height:1.85;
  margin-bottom:8px;
}
.check-list li::before{
  content:"";position:absolute;left:2px;top:12px;width:6px;height:6px;border-radius:50%;
  background:var(--primary);
}
.check-list li:last-child{margin-bottom:0;}

/* ===== help block ===== */
.help-media{border-radius:var(--rc);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);}
.help-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.help-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--rc);
  padding:30px 28px;height:100%;box-shadow:var(--shadow-card);
}
.help-card h3{font-size:20px;margin-bottom:14px;}
.help-card p{color:var(--text-l-2);font-size:15px;margin-bottom:14px;}
.help-list li{
  display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);
  font-size:15px;color:var(--text-l-2);
}
.help-list li:last-child{border-bottom:0;}
.help-list li i{color:var(--primary-ink);margin-top:5px;}
.help-mail{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;margin-top:6px;}

/* ===== cta panel ===== */
.cta-panel{
  position:relative;overflow:hidden;background:var(--ink-800);
  border:1px solid rgba(20,224,180,.16);border-radius:var(--rp);
  padding:40px 28px;box-shadow:var(--shadow-panel);
  display:flex;flex-wrap:wrap;gap:32px;align-items:center;justify-content:space-between;
}
@media (min-width:1024px){.cta-panel{padding:56px 52px;}}
.cta-panel::before{
  content:"";position:absolute;inset:0;opacity:.08;pointer-events:none;
  background-image:radial-gradient(rgba(20,224,180,.9) 1px,transparent 1px);
  background-size:26px 26px;
}
.cta-panel::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,224,180,.22),transparent 68%);pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:560px;}
.cta-copy h2{color:#fff;font-size:clamp(22px,3vw,32px);letter-spacing:-.3px;}
.cta-copy p{color:var(--text-d-2);font-size:16px;margin-top:12px;}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px;}
@media (max-width:639px){
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}
.cta-note{position:relative;z-index:2;width:100%;color:var(--text-d-2);font-size:13px;font-variant-numeric:tabular-nums;}

/* ===== footer ===== */
.site-footer{
  position:relative;background:var(--ink-900);color:var(--text-d-2);
  padding:64px 0 0;margin-top:0;overflow:hidden;
}
.footer-stripe{position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--primary),transparent);opacity:.65;}
.site-footer::before{
  content:"";position:absolute;inset:0;opacity:.06;pointer-events:none;
  background-image:radial-gradient(rgba(20,224,180,.9) 1px,transparent 1px);
  background-size:24px 24px;
}
.footer-grid{
  position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:36px 28px;
}
@media (min-width:900px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}}
.footer-brand{grid-column:1 / -1;}
@media (min-width:900px){.footer-brand{grid-column:auto;}}
.footer-brand .brand-name{color:#fff;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;max-width:320px;}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:var(--text-d-2);font-size:14px;}
.footer-links a:hover{color:var(--primary);}
.footer-dl{display:flex;gap:16px;align-items:flex-start;flex-wrap:wrap;}
.footer-qr{
  width:120px;height:120px;flex:0 0 auto;border:1px solid rgba(20,224,180,.35);border-radius:12px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:13px;color:var(--text-d-2);line-height:1.7;position:relative;
  background:rgba(20,224,180,.05);
}
.footer-contact{font-size:14px;line-height:1.9;}
.footer-bottom{
  position:relative;z-index:2;margin-top:48px;padding:22px 0;
  border-top:1px solid rgba(228,232,239,.1);
  display:flex;flex-wrap:wrap;gap:10px 20px;align-items:center;justify-content:center;
  font-size:13px;color:var(--text-d-2);text-align:center;
}
.footer-bottom a{color:var(--text-d-2);}
.footer-bottom a:hover{color:var(--primary);}
@media (min-width:900px){
  .footer-bottom{justify-content:space-between;text-align:left;}
}

/* ===== responsive tweaks ===== */
@media (max-width:1023px){
  .faq-a-inner{padding:0 20px 22px 20px;}
  .faq-q{padding:20px;font-size:17px;}
}
@media (max-width:639px){
  .jump-card-lg{padding:26px 22px;}
  .section-head{margin-bottom:26px;}
  .faq-tools{padding:16px;}
  .cta-panel{padding:32px 22px;}
  .faq-group-num{width:40px;height:40px;border-radius:12px;font-size:14px;}
}