/* roulang page: index */
:root{
  --bg-0:#05080F;
  --bg-1:#0A1120;
  --bg-2:#0F1A2E;
  --glass:rgba(255,255,255,.045);
  --glass-hi:rgba(255,255,255,.075);
  --line:rgba(122,190,255,.14);
  --line-hi:rgba(122,190,255,.34);
  --primary:#2B7BFF;
  --primary-glow:rgba(43,123,255,.45);
  --accent:#22E3C8;
  --accent-glow:rgba(34,227,200,.4);
  --warn:#FFB43D;
  --text-1:#E8F0FF;
  --text-2:#9FB0CC;
  --text-3:#6B7C99;
  --r-s:8px;
  --r-m:12px;
  --r-l:16px;
  --r-xl:22px;
  --shadow-card:0 10px 30px rgba(0,0,0,.45);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  color:var(--text-1);
  background:var(--bg-0);
  background-image:radial-gradient(900px 600px at 12% -5%,rgba(43,123,255,.18),transparent 65%),radial-gradient(800px 520px at 92% 8%,rgba(34,227,200,.10),transparent 68%);
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--accent);text-decoration:none;transition:color .18s ease,opacity .18s ease}
a:hover{color:#7ff3e2}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section.tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-title{font-size:28px;font-weight:700;letter-spacing:.015em;line-height:1.4}
.section-title span{color:var(--accent)}
.section-sub{margin-top:10px;font-size:15px;color:var(--text-2);max-width:640px;line-height:1.8}
.more-link{font-size:14px;font-weight:500;color:var(--accent);white-space:nowrap}
.more-link:hover{text-decoration:underline;text-underline-offset:3px}
.num{font-variant-numeric:tabular-nums}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:999px;border:1px solid var(--line-hi);background:var(--glass);font-size:13px;color:var(--text-2);letter-spacing:.06em}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent-glow)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r-m);font-size:15px;font-weight:600;letter-spacing:.02em;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease,filter .18s ease;white-space:nowrap}
.btn-primary{color:#fff;background:linear-gradient(135deg,#2B7BFF,#1B5BD8);box-shadow:0 0 18px var(--primary-glow)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 26px var(--primary-glow);color:#fff}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 12px var(--primary-glow)}
.btn-ghost{color:var(--text-1);background:var(--glass);border:1px solid var(--line-hi);backdrop-filter:blur(14px)}
.btn-ghost:hover{border-color:var(--accent);color:var(--text-1);box-shadow:0 0 22px rgba(34,227,200,.22);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--accent)}
.link-arrow:hover{gap:10px}
.link-arrow::after{content:"→";transition:transform .18s ease}

/* 顶部导航 */
.site-header{position:fixed;top:0;left:0;right:0;height:68px;z-index:120;background:rgba(10,17,32,.72);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line);transition:height .2s ease,box-shadow .2s ease,background .2s ease}
.site-header.scrolled{height:60px;box-shadow:0 0 20px rgba(43,123,255,.18);background:rgba(10,17,32,.88)}
.nav{display:flex;align-items:center;height:100%;gap:18px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:32px;height:32px;border-radius:10px;background:linear-gradient(135deg,#2B7BFF,#22E3C8);box-shadow:0 0 16px var(--primary-glow);position:relative;flex-shrink:0}
.logo-mark::after{content:"";position:absolute;inset:10px 9px;background:rgba(5,8,15,.72);border-radius:3px;clip-path:polygon(0 0,100% 0,100% 55%,55% 55%,55% 100%,0 100%)}
.logo-text{font-size:17px;font-weight:700;color:var(--text-1);letter-spacing:.02em}
.logo-text em{font-style:normal;color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-links a{position:relative;display:block;padding:10px 13px;font-size:14px;font-weight:500;color:var(--text-2);border-radius:var(--r-s);transition:color .18s ease}
.nav-links a::after{content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--accent),var(--primary));transform:scaleX(0);transform-origin:left;transition:transform .18s ease,box-shadow .18s ease}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--text-1)}
.nav-links a.active::after{transform:scaleX(1);box-shadow:0 0 12px var(--accent-glow)}
.nav-links a.active::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:15px;border-radius:2px;background:var(--accent);box-shadow:0 0 10px var(--accent-glow)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--r-m);border:1px solid var(--line);background:var(--glass);color:var(--text-2);transition:color .18s ease,border-color .18s ease,box-shadow .18s ease}
.icon-btn:hover{color:var(--text-1);border-color:var(--line-hi);box-shadow:0 0 18px rgba(43,123,255,.22)}
.icon-btn svg{width:18px;height:18px}
.burger{display:none}
.drawer-mask{position:fixed;inset:0;background:rgba(4,7,13,.66);backdrop-filter:blur(3px);opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;z-index:130}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:280px;z-index:140;background:rgba(10,17,32,.96);backdrop-filter:blur(18px);border-left:1px solid var(--line);transform:translateX(100%);transition:transform .22s ease;display:flex;flex-direction:column;padding:22px 20px}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer a.drawer-link{display:flex;align-items:center;height:52px;padding:0 12px;font-size:16px;color:var(--text-2);border-radius:var(--r-m);border-bottom:1px solid var(--line);transition:color .18s ease,background .18s ease}
.drawer a.drawer-link:hover,.drawer a.drawer-link.active{color:var(--text-1);background:rgba(255,255,255,.04);box-shadow:inset 3px 0 0 var(--accent)}
.drawer-foot{margin-top:auto;padding-top:18px}

/* Hero */
.hero{position:relative;padding:150px 0 92px;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;background-image:url("/assets/images/backpic/back-1.png");background-size:cover;background-position:center;opacity:.34;filter:saturate(.9)}
.hero-glow{position:absolute;inset:0;background:radial-gradient(680px 460px at 18% 18%,rgba(43,123,255,.30),transparent 70%),radial-gradient(560px 420px at 88% 26%,rgba(34,227,200,.16),transparent 72%),linear-gradient(180deg,rgba(5,8,15,.86),rgba(5,8,15,.96))}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(122,190,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(122,190,255,.07) 1px,transparent 1px);background-size:58px 58px;mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 78%);-webkit-mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 78%)}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center}
.hero h1{margin:20px 0 18px;font-size:48px;line-height:1.24;font-weight:700;letter-spacing:.015em}
.hero h1 .glow{background:linear-gradient(120deg,#2B7BFF,#22E3C8);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:17px;line-height:1.9;color:var(--text-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{display:flex;gap:14px;margin-top:38px;flex-wrap:wrap}
.stat{flex:1 1 140px;min-width:132px;padding:16px 18px;border-radius:var(--r-l);background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(14px);transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease}
.stat:hover{border-color:var(--line-hi);transform:translateY(-3px);box-shadow:0 0 22px rgba(43,123,255,.2)}
.stat b{display:block;font-size:26px;font-weight:700;letter-spacing:.01em;color:var(--text-1);font-variant-numeric:tabular-nums}
.stat span{display:block;margin-top:4px;font-size:13px;color:var(--text-3)}
.hero-visual{position:relative;border-radius:var(--r-xl);border:1px solid var(--line-hi);background:var(--glass);backdrop-filter:blur(14px);padding:14px;box-shadow:var(--shadow-card)}
.hero-visual img{border-radius:var(--r-l);width:100%;height:290px;object-fit:cover}
.hero-visual .vv-bar{display:flex;align-items:center;gap:10px;margin-top:14px;padding:0 4px}
.hero-visual .vv-bar .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent-glow)}
.hero-visual .vv-bar span{font-size:13px;color:var(--text-3)}
.hero-visual .vv-track{margin-left:auto;width:96px;height:6px;border-radius:99px;background:rgba(122,190,255,.12);overflow:hidden}
.hero-visual .vv-track i{display:block;height:100%;width:72%;background:linear-gradient(90deg,var(--accent),var(--primary));border-radius:99px;box-shadow:0 0 12px var(--primary-glow)}

/* 保障条 */
.assure{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:linear-gradient(180deg,rgba(15,26,46,.7),rgba(10,17,32,.5))}
.assure-inner{display:flex;align-items:center;justify-content:space-between;gap:0;flex-wrap:wrap}
.assure-item{flex:1 1 180px;display:flex;align-items:center;gap:10px;padding:20px 22px;position:relative;font-size:15px;color:var(--text-2)}
.assure-item + .assure-item::before{content:"";position:absolute;left:0;top:26%;bottom:26%;width:1px;background:var(--line)}
.assure-item i{width:9px;height:9px;border-radius:50%;background:var(--primary);box-shadow:0 0 12px var(--primary-glow);flex-shrink:0}
.assure-item:nth-child(2) i{background:var(--accent);box-shadow:0 0 12px var(--accent-glow)}
.assure-item:nth-child(4) i{background:var(--warn);box-shadow:0 0 12px rgba(255,180,61,.45)}

/* 卡片通用 */
.card{position:relative;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-l);backdrop-filter:blur(14px);box-shadow:var(--shadow-card);overflow:hidden;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease,background .18s ease}
.card:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:0 10px 30px rgba(0,0,0,.45),0 0 26px rgba(43,123,255,.22)}
.card-media{position:relative;background:var(--bg-2);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;opacity:0}
.card-media img.loaded{opacity:1;transition:opacity .24s ease,transform .3s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-media::after{content:"";position:absolute;inset:auto 0 0 0;height:58%;background:linear-gradient(180deg,transparent,rgba(5,8,15,.86));pointer-events:none}
.badge{position:absolute;top:12px;left:12px;z-index:2;display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:999px;font-size:12px;font-weight:500;color:var(--text-1);background:rgba(5,8,15,.66);border:1px solid var(--line-hi);backdrop-filter:blur(8px)}
.badge.accent{color:#06231f;background:linear-gradient(135deg,#22E3C8,#7ff3e2);border-color:transparent;font-weight:600}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:999px;font-size:12px;font-weight:500;color:var(--accent);background:rgba(34,227,200,.10);border:1px solid rgba(34,227,200,.28)}
.card-body{padding:20px}
.card-title{font-size:18px;font-weight:600;line-height:1.5;color:var(--text-1)}
.card-desc{margin-top:8px;font-size:14px;line-height:1.8;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px}

/* Bento 网格 */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.bento .b-large{grid-column:span 6;grid-row:span 2}
.bento .b-small{grid-column:span 3}
.bento .b-large .card{height:100%;display:flex;flex-direction:column}
.bento .b-large .card-media{height:250px;flex-shrink:0}
.bento .b-large .card-desc{-webkit-line-clamp:3}
.bento .b-small .card{height:100%;display:flex;flex-direction:column}
.bento .b-small .card-media{height:132px;flex-shrink:0}
.bento .b-small .card-body{padding:16px 18px 18px}
.bento .b-small .card-title{font-size:16px}

/* 特性图文 */
.feature-wrap{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.feature-media{position:relative;border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--line-hi);box-shadow:var(--shadow-card)}
.feature-media img{width:100%;height:396px;object-fit:cover}
.feature-media::after{content:"";position:absolute;inset:0;background:linear-gradient(200deg,rgba(43,123,255,.18),rgba(5,8,15,.5))}
.feature-list{margin-top:26px;display:grid;gap:14px}
.feature-item{display:flex;gap:14px;padding:16px 18px;border-radius:var(--r-l);background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(14px);transition:border-color .18s ease,transform .18s ease}
.feature-item:hover{border-color:var(--line-hi);transform:translateX(4px)}
.feature-item .fi-no{font-size:13px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:.08em;padding-top:2px}
.feature-item h4{font-size:16px;font-weight:600;margin-bottom:4px}
.feature-item p{font-size:14px;line-height:1.8;color:var(--text-2)}

/* 评价轮播 */
.rev-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px;flex-wrap:wrap}
.rev-nav{display:flex;gap:10px}
.rev-arrow{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:50%;border:1px solid var(--line-hi);background:var(--glass);color:var(--text-1);font-size:16px;backdrop-filter:blur(14px);transition:box-shadow .18s ease,border-color .18s ease,transform .18s ease}
.rev-arrow:hover{border-color:var(--accent);box-shadow:0 0 22px var(--accent-glow);transform:translateY(-2px)}
.rev-track{display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;padding-bottom:6px}
.rev-track::-webkit-scrollbar{display:none}
.rev-card{flex:0 0 calc((100% - 48px)/3);scroll-snap-align:start;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-l);backdrop-filter:blur(14px);padding:22px;box-shadow:var(--shadow-card);transition:border-color .18s ease,transform .18s ease}
.rev-card:hover{border-color:var(--line-hi);transform:translateY(-4px)}
.rev-top{display:flex;align-items:center;gap:12px}
.avatar{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,#2B7BFF,#22E3C8);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:#04121a;flex-shrink:0}
.rev-name{font-size:15px;font-weight:600}
.rev-role{font-size:12px;color:var(--text-3)}
.stars{margin-left:auto;color:var(--warn);font-size:13px;letter-spacing:2px}
.rev-text{margin-top:16px;font-size:14px;line-height:1.85;color:var(--text-2)}
.rev-foot{margin-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.rev-dots{display:flex;justify-content:center;gap:8px;margin-top:24px}
.rev-dot{width:8px;height:8px;border-radius:50%;background:rgba(122,190,255,.25);transition:background .18s ease,width .18s ease,box-shadow .18s ease}
.rev-dot.active{width:24px;border-radius:99px;background:var(--accent);box-shadow:0 0 14px var(--accent-glow)}

/* 最新信息 */
.news-layout{display:grid;grid-template-columns:1.24fr 1fr;gap:24px}
.news-main{display:flex;flex-direction:column}
.news-main .card-media{height:264px}
.news-main .card-body{padding:24px}
.news-main .card-title{font-size:22px}
.news-main .card-desc{-webkit-line-clamp:3;font-size:15px}
.meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--text-3);margin-top:16px}
.meta .sep{width:1px;height:12px;background:var(--line-hi)}
.news-list{display:flex;flex-direction:column;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-l);backdrop-filter:blur(14px);overflow:hidden;box-shadow:var(--shadow-card)}
.news-row{position:relative;display:block;padding:18px 20px;border-bottom:1px solid var(--line);transition:background .18s ease}
.news-row:last-child{border-bottom:0}
.news-row:hover{background:rgba(255,255,255,.04)}
.news-row::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:linear-gradient(180deg,var(--accent),var(--primary));opacity:0;transition:opacity .18s ease;box-shadow:0 0 12px var(--accent-glow)}
.news-row:hover::before{opacity:1}
.news-row h4{font-size:15px;font-weight:600;line-height:1.6;color:var(--text-1);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row p{margin-top:6px;font-size:13px;line-height:1.7;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-row .meta{margin-top:10px;font-size:12px}
.empty-state{padding:56px 28px;text-align:center;border:1px dashed var(--line-hi);border-radius:var(--r-xl);background:var(--glass)}
.empty-state .es-box{width:66px;height:66px;margin:0 auto 18px;border-radius:var(--r-l);border:1px solid var(--line-hi);background:linear-gradient(135deg,rgba(43,123,255,.18),rgba(34,227,200,.1));position:relative}
.empty-state .es-box::after{content:"";position:absolute;inset:22px;border-radius:4px;background:rgba(122,190,255,.35)}
.empty-state p{color:var(--text-2);font-size:15px}
.empty-state .btn{margin-top:20px}

/* FAQ */
.faq-list{max-width:920px}
.faq-item{margin-bottom:12px;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-m);backdrop-filter:blur(14px);overflow:hidden;transition:border-color .2s ease,background .2s ease,box-shadow .2s ease}
.faq-item:hover{border-color:var(--line-hi)}
.faq-item.open{border-color:var(--line-hi);box-shadow:inset 3px 0 0 var(--accent),0 0 22px rgba(34,227,200,.14)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 20px;font-size:16px;font-weight:600;color:var(--text-1);text-align:left;transition:color .18s ease}
.faq-icon{position:relative;width:18px;height:18px;flex-shrink:0;transition:transform .18s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--accent);border-radius:2px;transition:opacity .18s ease}
.faq-icon::before{left:0;right:0;top:8px;height:2px}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px}
.faq-item.open .faq-icon::after{opacity:0;transform:rotate(90deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* CTA */
.cta-panel{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:40px;border-radius:var(--r-xl);border:1px solid var(--line-hi);background:linear-gradient(120deg,rgba(43,123,255,.14),rgba(34,227,200,.08)),var(--glass);backdrop-filter:blur(16px);box-shadow:var(--shadow-card);overflow:hidden;flex-wrap:wrap}
.cta-panel::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--accent),var(--primary),transparent)}
.cta-panel h3{font-size:24px;font-weight:700;letter-spacing:.015em}
.cta-panel p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--text-2);max-width:600px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* 页脚 */
.site-footer{position:relative;margin-top:96px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(10,17,32,.9),rgba(5,8,15,.98))}
.site-footer::before{content:"";position:absolute;top:-1px;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--accent),var(--primary),transparent);opacity:.75}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding:64px 0 40px}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--text-2);max-width:320px}
.foot-col h4{font-size:14px;font-weight:600;color:var(--text-1);letter-spacing:.04em;margin-bottom:16px}
.foot-col ul{display:grid;gap:10px}
.foot-col a{font-size:14px;color:var(--text-2)}
.foot-col a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.foot-contact li{font-size:14px;color:var(--text-2);line-height:1.8}
.foot-contact li b{color:var(--text-1);font-weight:600}
.foot-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:20px 0 32px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}
.foot-bottom .fb-links{display:flex;gap:18px;flex-wrap:wrap}
.foot-bottom a{font-size:13px;color:var(--text-3)}
.foot-bottom a:hover{color:var(--accent)}

/* 响应式 */
@media (max-width:1399px){
  .container{max-width:1240px}
}
@media (max-width:1199px){
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:40px}
  .hero-visual img{height:260px}
  .bento .b-large{grid-column:span 12}
  .bento .b-small{grid-column:span 6}
  .rev-card{flex:0 0 calc((100% - 24px)/2)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .burger{display:inline-flex}
  .nav-right .btn{display:none}
  .site-header{height:62px}
  .hero{padding:126px 0 72px}
  .section{padding:72px 0}
  .section.tight{padding:56px 0}
  .feature-wrap{grid-template-columns:1fr;gap:32px}
  .feature-media img{height:300px}
  .news-layout{grid-template-columns:1fr}
  .news-main .card-media{height:220px}
  .assure-item + .assure-item::before{display:none}
  .assure-item{border-bottom:1px solid var(--line)}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .hero{padding:112px 0 60px;min-height:0}
  .hero h1{font-size:28px;line-height:1.35}
  .hero-lead{font-size:15px}
  .hero-actions .btn{width:100%}
  .hero-stats{gap:12px}
  .stat{flex:1 1 calc(50% - 6px);min-width:0;padding:14px}
  .stat b{font-size:22px}
  .section{padding:56px 0}
  .section-title{font-size:22px}
  .bento{gap:16px}
  .bento .b-large,.bento .b-small{grid-column:span 12}
  .bento .b-large .card-media{height:200px}
  .bento .b-small .card-media{height:150px}
  .rev-track{gap:16px}
  .rev-card{flex:0 0 100%}
  .cta-panel{padding:26px;gap:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding:44px 0 28px}
  .foot-bottom{justify-content:flex-start}
  .faq-q{font-size:15px;padding:16px}
  .faq-a p{padding:0 16px 16px}
}
@media (max-width:479px){
  .container{padding:0 16px}
  .card-body{padding:16px}
  .hero-visual{padding:10px}
  .meta{font-size:12px}
  .assure-item{padding:16px 16px}
}

/* roulang page: article */
:root{
  --bg-0:#05080F;
  --bg-1:#0A1120;
  --bg-2:#0F1A2E;
  --glass:rgba(255,255,255,.045);
  --glass-hi:rgba(255,255,255,.075);
  --line:rgba(122,190,255,.14);
  --line-hi:rgba(122,190,255,.34);
  --primary:#2B7BFF;
  --primary-glow:rgba(43,123,255,.45);
  --accent:#22E3C8;
  --accent-glow:rgba(34,227,200,.4);
  --warn:#FFB43D;
  --danger:#FF6B6B;
  --text-1:#E8F0FF;
  --text-2:#9FB0CC;
  --text-3:#6B7C99;
  --r-s:8px;
  --r-m:12px;
  --r-l:16px;
  --r-xl:22px;
  --shadow-card:0 10px 30px rgba(0,0,0,.45);
  --t:200ms cubic-bezier(.4,0,.2,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:var(--bg-0);
  background-image:
    radial-gradient(900px 520px at 12% -8%,rgba(43,123,255,.20),transparent 62%),
    radial-gradient(760px 460px at 96% 4%,rgba(34,227,200,.12),transparent 60%),
    linear-gradient(180deg,#05080F 0%,#070D19 48%,#05080F 100%);
  background-attachment:fixed;
  letter-spacing:.01em;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(122,190,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(122,190,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
}
img{max-width:100%;display:block;border:0}
a{color:var(--accent);text-decoration:none;transition:color var(--t),opacity var(--t)}
a:hover{color:#7df3e2}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:.015em;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
::selection{background:rgba(34,227,200,.28);color:#fff}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;position:relative;z-index:1}

/* 顶栏 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,17,32,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:height var(--t),box-shadow var(--t),background var(--t);
}
.site-header.is-scrolled{box-shadow:0 0 20px rgba(43,123,255,.18);background:rgba(8,14,26,.88)}
.nav{display:flex;align-items:center;gap:28px;height:68px;transition:height var(--t)}
.site-header.is-scrolled .nav{height:60px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text-1);font-weight:700;font-size:17px;letter-spacing:.02em}
.logo:hover{color:var(--text-1)}
.logo-mark{
  width:20px;height:20px;flex:0 0 20px;
  border-radius:6px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:0 0 16px var(--primary-glow);
  clip-path:polygon(0 0,100% 0,100% 72%,72% 100%,0 100%);
}
.logo-text em{font-style:normal;color:var(--accent);margin-left:2px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:10px 12px;
  font-size:14px;
  color:var(--text-2);
  border-radius:var(--r-s);
  transition:color var(--t),background var(--t);
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--accent),var(--primary));
  transform:scaleX(0);transform-origin:left;opacity:0;
  transition:transform 180ms ease,opacity 180ms ease;
}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after{transform:scaleX(1);opacity:.85}
.nav-links a.active{color:var(--text-1);box-shadow:0 0 12px var(--accent-glow) inset}
.nav-links a.active::before{
  content:"";position:absolute;left:2px;top:50%;transform:translateY(-50%);
  width:3px;height:16px;border-radius:2px;background:var(--accent);box-shadow:0 0 10px var(--accent-glow);
}
.nav-links a.active::after{transform:scaleX(1);opacity:1}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.icon-btn{
  width:38px;height:38px;display:grid;place-items:center;
  border:1px solid var(--line);border-radius:var(--r-m);
  color:var(--text-2);background:var(--glass);
  transition:color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t);
}
.icon-btn svg{width:18px;height:18px}
.icon-btn:hover{color:var(--text-1);border-color:var(--line-hi);box-shadow:0 0 18px rgba(43,123,255,.25);transform:translateY(-1px)}
.burger{display:none}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-m);
  font-size:15px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
  transition:transform 180ms ease,box-shadow 180ms ease,background var(--t),border-color var(--t),color var(--t),filter 180ms ease;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-primary{
  color:#fff;
  background:linear-gradient(135deg,#2B7BFF,#1B5BD8);
  box-shadow:0 0 18px var(--primary-glow);
}
.btn-primary:hover{color:#fff;filter:brightness(1.08);box-shadow:0 0 26px rgba(43,123,255,.6);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 12px rgba(43,123,255,.45)}
.btn-ghost{
  color:var(--text-1);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.btn-ghost:hover{color:var(--text-1);border-color:var(--accent);box-shadow:0 0 22px rgba(34,227,200,.22);transform:translateY(-1px)}
.btn-block{width:100%}

/* 阅读进度 */
.read-progress{position:fixed;top:0;left:0;height:2px;width:0;z-index:120;
  background:linear-gradient(90deg,var(--accent),var(--primary));box-shadow:0 0 12px var(--accent-glow);transition:width 120ms linear}

/* 文章头 */
.article-hero{
  position:relative;
  padding:56px 0 48px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(5,8,15,.72),rgba(5,8,15,.94)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(620px 260px at 18% 0%,rgba(43,123,255,.26),transparent 68%);
}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-3);position:relative;z-index:1}
.crumb a{color:var(--text-3);transition:color var(--t)}
.crumb a:hover{color:var(--accent)}
.crumb .sep{color:rgba(107,124,153,.6)}
.crumb .current{color:var(--text-2)}
.article-head{position:relative;z-index:1;max-width:860px;margin-top:22px}
.article-head h1{font-size:36px;font-weight:700;line-height:1.32;margin-top:14px}
.meta-row{display:flex;align-items:center;flex-wrap:wrap;gap:14px;margin-top:20px;font-size:13px;color:var(--text-3)}
.meta-row .item{display:inline-flex;align-items:center;gap:6px}
.meta-row .item svg{width:14px;height:14px;opacity:.8}
.meta-row .divider{width:1px;height:12px;background:var(--line)}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  font-size:13px;font-weight:500;color:var(--text-2);
  background:var(--glass);border:1px solid var(--line);
  transition:border-color var(--t),color var(--t),box-shadow var(--t);
}
.tag-accent{color:var(--accent);background:rgba(34,227,200,.10);border-color:rgba(34,227,200,.28)}
.tag:hover{border-color:var(--line-hi);color:var(--text-1)}

/* 正文布局 */
.section{padding:72px 0}
.section-tight{padding:48px 0}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 268px;gap:44px;align-items:start}
.article-main{min-width:0}
.article-content{
  max-width:780px;font-size:17px;line-height:1.9;color:#D5E1F5;letter-spacing:.012em;
}
.article-content>*+*{margin-top:1.25em}
.article-content h2{
  position:relative;margin-top:2.1em;padding-left:14px;font-size:20px;font-weight:700;color:var(--text-1);
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.22em;width:3px;height:1.05em;border-radius:2px;
  background:linear-gradient(180deg,var(--accent),var(--primary));box-shadow:0 0 12px var(--accent-glow);
}
.article-content h3{margin-top:1.7em;font-size:18px;font-weight:600;color:var(--text-1)}
.article-content p{margin-top:1.25em;color:#CBD8EE}
.article-content a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{text-shadow:0 0 12px var(--accent-glow)}
.article-content blockquote{
  margin-top:1.5em;padding:18px 22px;border-radius:var(--r-l);
  background:var(--glass);border:1px solid var(--line);border-left:3px solid var(--accent);
  color:var(--text-2);font-size:15.5px;line-height:1.85;
}
.article-content img{border-radius:14px;margin:1.6em auto;box-shadow:var(--shadow-card)}
.article-content figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:-8px}
.article-content ul,.article-content ol{margin-top:1.2em;padding-left:2px}
.article-content ul li,.article-content ol li{position:relative;padding-left:22px;margin-top:.6em;color:#CBD8EE}
.article-content ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 10px var(--accent-glow);
}
.article-content ol{counter-reset:olc}
.article-content ol li{counter-increment:olc}
.article-content ol li::before{
  content:counter(olc);position:absolute;left:0;top:.18em;
  width:16px;height:16px;border-radius:50%;
  font-size:11px;line-height:16px;text-align:center;color:#04121A;font-weight:700;
  background:var(--accent);
}
.article-content code{
  font-family:ui-monospace,"SFMono-Regular",Consolas,monospace;
  font-size:14px;padding:2px 7px;border-radius:6px;
  background:var(--bg-2);border:1px solid var(--line);color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.article-content pre{
  margin-top:1.5em;padding:18px 20px;border-radius:var(--r-l);overflow-x:auto;
  background:var(--bg-2);border:1px solid var(--line);
  font-size:14px;line-height:1.7;font-family:ui-monospace,Consolas,monospace;
}
.article-content pre code{background:none;border:0;padding:0;color:#B9CBEA}
.article-content table{width:100%;border-collapse:collapse;margin-top:1.5em;font-size:15px}
.article-content th,.article-content td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-content th{color:var(--text-1);background:var(--glass);font-weight:600}
.article-content td{color:var(--text-2);font-variant-numeric:tabular-nums}
.article-content hr{margin:2.2em 0;border:0;border-top:1px solid var(--line)}

/* 侧栏 */
.side-card{
  position:sticky;top:96px;padding:22px;border-radius:var(--r-l);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.side-card h3{font-size:15px;letter-spacing:.04em;color:var(--text-1)}
.side-card p{margin-top:10px;font-size:13.5px;color:var(--text-2);line-height:1.8}
.side-links{margin-top:16px;border-top:1px solid var(--line)}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 4px;font-size:14px;color:var(--text-2);
  border-bottom:1px solid var(--line);
  transition:background var(--t),color var(--t),padding var(--t);
}
.side-links a span.arrow{color:var(--text-3);transition:transform var(--t),color var(--t)}
.side-links a:hover{color:var(--text-1);background:rgba(255,255,255,.04);padding-left:10px}
.side-links a:hover span.arrow{color:var(--accent);transform:translateX(3px)}
.side-card .btn{margin-top:18px}
.side-note{
  margin-top:16px;padding:14px;border-radius:var(--r-m);
  background:rgba(43,123,255,.08);border:1px solid rgba(43,123,255,.22);
  font-size:13px;color:var(--text-2);line-height:1.75;
}

/* 空态 */
.empty-state{
  padding:56px 28px;text-align:center;border-radius:var(--r-l);
  border:1px dashed var(--line-hi);background:var(--glass);
}
.empty-state .glyph{
  width:56px;height:56px;margin:0 auto 18px;border-radius:var(--r-m);
  display:grid;place-items:center;color:var(--accent);
  background:rgba(34,227,200,.08);border:1px solid rgba(34,227,200,.3);
}
.empty-state .glyph svg{width:26px;height:26px}
.empty-state h2{font-size:20px}
.empty-state p{margin-top:10px;font-size:14.5px;color:var(--text-2)}
.empty-state .btn{margin-top:22px}

/* 保障条 */
.assure{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-radius:var(--r-l);border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  overflow:hidden;
}
.assure .cell{
  display:flex;align-items:center;gap:12px;padding:20px 22px;
  border-right:1px solid var(--line);
}
.assure .cell:last-child{border-right:0}
.assure .dot{width:8px;height:8px;border-radius:50%;flex:0 0 8px}
.dot-on{background:var(--accent);box-shadow:0 0 10px var(--accent-glow)}
.dot-warn{background:var(--warn);box-shadow:0 0 10px rgba(255,180,61,.45)}
.assure b{display:block;font-size:15px;font-weight:600;color:var(--text-1)}
.assure small{display:block;font-size:12.5px;color:var(--text-3);margin-top:2px}

/* 相关推荐 */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.sec-head h2{font-size:24px;font-weight:700}
.sec-head p{margin-top:8px;font-size:14px;color:var(--text-2)}
.sec-head .more{font-size:14px;color:var(--accent);display:inline-flex;align-items:center;gap:6px}
.sec-head .more:hover{text-shadow:0 0 12px var(--accent-glow)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-l);border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.card:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:0 14px 34px rgba(0,0,0,.5),0 0 26px rgba(43,123,255,.22)}
.card {color:var(--text-1)}
.card:hover{color:var(--text-1)}
.card-media{position:relative;aspect-ratio:16/9;background:var(--bg-2);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity 240ms ease,transform 420ms ease}
.card-media img.is-loaded{opacity:1}
.card:hover .card-media img{transform:scale(1.04)}
.card-media::after{
  content:"";position:absolute;inset:auto 0 0 0;height:56%;
  background:linear-gradient(180deg,transparent,rgba(5,8,15,.82));
}
.card-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:18px;font-weight:600;line-height:1.5}
.card-body .excerpt{font-size:14px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line)}
.card-foot time{font-size:13px;color:var(--text-3);display:inline-flex;align-items:center;gap:6px}
.card-foot time svg{width:13px;height:13px}
.card-link{font-size:13.5px;color:var(--accent);display:inline-flex;align-items:center;gap:6px}
.card:hover .card-link{gap:10px;text-shadow:0 0 12px var(--accent-glow)}

/* CTA 区 */
.cta-band{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:36px 40px;border-radius:var(--r-xl);
  background:linear-gradient(135deg,rgba(43,123,255,.14),rgba(34,227,200,.08));
  border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.cta-band::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--accent),var(--primary),transparent);
  box-shadow:0 0 14px var(--accent-glow);
}
.cta-band h2{font-size:24px;font-weight:700}
.cta-band p{margin-top:10px;font-size:14.5px;color:var(--text-2);max-width:620px}
.cta-band .actions{display:flex;gap:14px;flex:0 0 auto}

/* FAQ */
.faq-list{margin-top:8px;display:grid;gap:14px}
.faq-item{
  border-radius:var(--r-l);border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:border-color var(--t),box-shadow var(--t);overflow:hidden;
}
.faq-item.open{border-color:var(--line-hi);box-shadow:0 0 24px rgba(43,123,255,.16)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text-1);
}
.faq-icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line-hi);color:var(--accent);font-size:15px;line-height:1;
  transition:transform 180ms ease,border-color var(--t),box-shadow var(--t);
}
.faq-item.open .faq-icon{transform:rotate(180deg);border-color:var(--accent);box-shadow:0 0 12px var(--accent-glow)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms ease}
.faq-item.open .faq-a{max-height:520px}
.faq-a-inner{
  padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2);
  border-left:3px solid var(--accent);margin-left:22px;padding-left:16px;
}

/* 移动抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(3,6,12,.62);backdrop-filter:blur(2px);opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);z-index:100}
.drawer-mask.show{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:280px;z-index:110;
  display:flex;flex-direction:column;
  background:rgba(8,14,26,.96);border-left:1px solid var(--line);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  transform:translateX(100%);transition:transform 240ms cubic-bezier(.4,0,.2,1);
  padding:22px 20px;
}
.drawer.show{transform:translateX(0)}
.drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer nav{display:flex;flex-direction:column}
.drawer nav a{
  position:relative;display:flex;align-items:center;
  height:52px;padding-left:14px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line);
  transition:color var(--t),background var(--t);
}
.drawer nav a:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.drawer nav a.active{color:var(--text-1)}
.drawer nav a.active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:2px;background:var(--accent);box-shadow:0 0 10px var(--accent-glow);
}
.drawer .drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line)}

/* 页脚 */
.site-footer{
  margin-top:32px;padding:64px 0 28px;
  background:linear-gradient(180deg,rgba(10,17,32,.5),rgba(5,8,15,.9));
  border-top:1px solid var(--line);
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--accent),var(--primary),transparent);
  opacity:.75;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
.foot-brand p{margin-top:16px;font-size:14px;color:var(--text-2);line-height:1.85;max-width:360px}
.foot-col h4{font-size:15px;font-weight:600;color:var(--text-1);letter-spacing:.03em}
.foot-col ul{margin-top:16px;display:grid;gap:11px}
.foot-col ul a{font-size:14px;color:var(--text-2);transition:color var(--t),padding var(--t)}
.foot-col ul a:hover{color:var(--accent);padding-left:4px}
.foot-contact li{font-size:14px;color:var(--text-2);line-height:1.8}
.foot-contact li b{color:var(--text-1);font-weight:600}
.foot-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.fb-links{display:inline-flex;align-items:center;gap:16px;flex-wrap:wrap}
.fb-links a{color:var(--text-3)}
.fb-links a:hover{color:var(--accent)}

@media (max-width:1199px){
  .container{padding:0 28px}
  .article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:32px}
  .grid-3{gap:20px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .burger{display:grid}
  .nav-right .btn-sm{display:none}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .side-card{position:static}
  .article-head h1{font-size:30px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .assure{grid-template-columns:repeat(2,1fr)}
  .assure .cell:nth-child(2){border-right:0}
  .assure .cell:nth-child(1),.assure .cell:nth-child(2){border-bottom:1px solid var(--line)}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 26px}
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:28px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 18px}
  .section{padding:52px 0}
  .article-hero{padding:36px 0 32px}
  .article-head h1{font-size:26px}
  .article-content{font-size:16.5px;line-height:1.85}
  .grid-3{grid-template-columns:1fr}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
  .cta-band .actions{width:100%;flex-direction:column}
  .cta-band .actions .btn{width:100%}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .container{padding:0 16px}
  .card-body{padding:16px}
  .assure{grid-template-columns:1fr}
  .assure .cell{border-right:0;border-bottom:1px solid var(--line)}
  .assure .cell:last-child{border-bottom:0}
  .article-head h1{font-size:23px}
  .meta-row{gap:10px}
  .foot-grid{grid-template-columns:1fr}
}

/* roulang page: category1 */
:root{
  --bg-0:#05080F;
  --bg-1:#0A1120;
  --bg-2:#0F1A2E;
  --glass:rgba(255,255,255,.045);
  --glass-hi:rgba(255,255,255,.075);
  --line:rgba(122,190,255,.14);
  --line-hi:rgba(122,190,255,.34);
  --primary:#2B7BFF;
  --primary-glow:rgba(43,123,255,.45);
  --accent:#22E3C8;
  --accent-glow:rgba(34,227,200,.4);
  --warn:#FFB43D;
  --text-1:#E8F0FF;
  --text-2:#9FB0CC;
  --text-3:#6B7C99;
  --r-s:8px;
  --r-m:12px;
  --r-l:16px;
  --r-xl:22px;
  --shadow-card:0 10px 30px rgba(0,0,0,.45);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100%;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  color:var(--text-1);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 520px at 10% -10%, rgba(43,123,255,.16), transparent 62%),
    radial-gradient(720px 460px at 95% 2%, rgba(34,227,200,.10), transparent 60%),
    linear-gradient(rgba(122,190,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(122,190,255,.04) 1px, transparent 1px);
  background-size:auto,auto,64px 64px,64px 64px;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:.015em;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(34,227,200,.28);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
@media (min-width:1400px){.container{max-width:1360px}}
@media (max-width:1199px){.container{padding:0 24px}}
@media (max-width:479px){.container{padding:0 16px}}

/* ============ 顶栏导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,17,32,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s ease,background .24s ease;
}
.site-header.scrolled{box-shadow:0 0 20px rgba(43,123,255,.18);background:rgba(10,17,32,.88)}
.nav{display:flex;align-items:center;gap:20px;height:68px;transition:height .22s ease}
.site-header.scrolled .nav{height:60px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text-1);font-weight:700;font-size:17px;letter-spacing:.02em;flex:none}
.logo-mark{
  width:26px;height:26px;border-radius:7px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:0 0 16px var(--primary-glow);
  clip-path:polygon(7px 0,100% 0,100% calc(100% - 7px),calc(100% - 7px) 100%,0 100%,0 7px);
}
.logo-text em{font-style:normal;color:var(--accent);margin-left:2px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  position:relative;display:block;padding:9px 12px;
  font-size:14px;font-weight:500;color:var(--text-2);text-decoration:none;border-radius:var(--r-s);
  transition:color .18s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--text-1)}
.nav-links a.active::after{transform:scaleX(1);box-shadow:0 0 12px var(--accent-glow)}
.nav-links a.active::before{
  content:"";position:absolute;left:0;top:50%;width:3px;height:14px;margin-top:-7px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 10px var(--accent-glow);
}
.nav-right{display:flex;align-items:center;gap:10px;flex:none}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:50%;
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);
  cursor:pointer;transition:color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.icon-btn svg{width:18px;height:18px}
.icon-btn:hover{color:var(--text-1);border-color:var(--line-hi);box-shadow:0 0 18px rgba(43,123,255,.26);transform:translateY(-1px)}
.burger{display:none}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-m);border:1px solid transparent;
  font-size:15px;font-weight:600;text-decoration:none;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:linear-gradient(135deg,#2B7BFF,#1B5BD8);color:#fff;box-shadow:0 0 18px var(--primary-glow)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 26px var(--primary-glow);filter:brightness(1.08)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 10px var(--primary-glow)}
.btn-ghost{background:var(--glass);border-color:var(--line);color:var(--text-1);backdrop-filter:blur(14px)}
.btn-ghost:hover{border-color:var(--accent);color:#fff;box-shadow:0 0 20px rgba(34,227,200,.22);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}

/* ============ 抽屉导航 ============ */
.overlay{
  position:fixed;inset:0;z-index:110;background:rgba(5,8,15,.62);
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;
}
.overlay.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;z-index:120;width:280px;max-width:86vw;height:100%;
  display:flex;flex-direction:column;gap:6px;padding:26px 22px;
  background:var(--bg-1);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .24s ease;
}
.drawer.open{transform:translateX(0)}
.drawer-title{font-size:13px;color:var(--text-3);letter-spacing:.1em;margin-bottom:10px}
.drawer a{
  position:relative;display:flex;align-items:center;height:52px;padding-left:14px;
  font-size:16px;color:var(--text-2);text-decoration:none;
  border-bottom:1px solid var(--line);transition:color .18s ease,background .18s ease;
}
.drawer a:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.drawer a.active{color:var(--text-1)}
.drawer a.active::before{
  content:"";position:absolute;left:0;top:50%;width:3px;height:20px;margin-top:-10px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 12px var(--accent-glow);
}
.drawer .btn{margin-top:auto;width:100%}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;padding:38px 0 74px;
  background-image:
    linear-gradient(180deg, rgba(5,8,15,.62), rgba(5,8,15,.94)),
    url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(680px 380px at 18% 8%, rgba(43,123,255,.22), transparent 66%),
             radial-gradient(520px 320px at 88% 30%, rgba(34,227,200,.13), transparent 62%);
}
.hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:34px}
.breadcrumb a{color:var(--text-3);text-decoration:none;transition:color .18s ease}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:rgba(107,124,153,.6)}
.breadcrumb .current{color:var(--text-2)}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center}
.badge{
  display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 12px;
  border-radius:999px;background:var(--glass);border:1px solid var(--line);
  font-size:13px;font-weight:500;color:var(--accent);
}
.badge .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent-glow)}
.hero h1{font-size:40px;font-weight:700;margin:20px 0 16px;letter-spacing:.02em}
.hero h1 span{color:var(--accent)}
.hero-sub{font-size:17px;color:var(--text-2);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.stat{
  min-width:150px;padding:14px 18px;border-radius:var(--r-m);
  background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(14px);
}
.stat b{display:block;font-size:22px;font-weight:700;color:var(--text-1);line-height:1.2}
.stat span{display:block;font-size:13px;color:var(--text-3);margin-top:4px}
.hero-visual{position:relative;border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card)}
.hero-visual img{width:100%;height:380px;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(5,8,15,.06) 30%, rgba(5,8,15,.82));
}
.hero-visual .cap{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
  font-size:14px;color:var(--text-1);
}
.hero-visual .cap small{display:block;font-size:12px;color:var(--text-3);margin-top:2px}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section-alt{padding:96px 0;background:linear-gradient(180deg, rgba(10,17,32,.65), rgba(5,8,15,.2))}
.section-head{max-width:740px;margin-bottom:38px}
.eyebrow{font-size:13px;font-weight:500;color:var(--accent);letter-spacing:.12em;margin-bottom:12px}
.section-head h2{font-size:28px;font-weight:700}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ============ 分类主区：侧栏 + 卡片 ============ */
.category-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:32px;align-items:start}
.side-panel{
  position:sticky;top:96px;
  padding:20px;border-radius:var(--r-l);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);
}
.side-panel h3{font-size:12px;font-weight:600;letter-spacing:.14em;color:var(--text-3);margin-bottom:12px}
.side-list{margin-bottom:24px}
.side-list:last-child{margin-bottom:0}
.side-list a{
  position:relative;display:block;padding:10px 12px;border-radius:10px;
  font-size:14px;color:var(--text-2);text-decoration:none;
  transition:color .18s ease,background .18s ease;
}
.side-list a:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.side-list a.active{color:var(--text-1);background:linear-gradient(90deg, rgba(34,227,200,.14), rgba(34,227,200,0))}
.side-list a.active::before{
  content:"";position:absolute;left:0;top:50%;width:3px;height:16px;margin-top:-8px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 12px var(--accent-glow);
}
.side-tip{margin-top:22px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);line-height:1.7}

.entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.entry-card{
  position:relative;display:grid;grid-template-columns:150px minmax(0,1fr);gap:18px;
  padding:18px;border-radius:var(--r-l);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.entry-card:hover{
  transform:translateY(-4px);border-color:var(--line-hi);background:var(--glass-hi);
  box-shadow:var(--shadow-card),0 0 26px rgba(43,123,255,.22);
}
.entry-thumb{border-radius:var(--r-m);overflow:hidden;background:var(--bg-2);position:relative}
.entry-thumb img{width:100%;height:100%;min-height:126px;object-fit:cover;transition:transform .24s ease}
.entry-card:hover .entry-thumb img{transform:scale(1.04)}
.entry-index{
  position:absolute;left:12px;top:12px;z-index:2;
  min-width:34px;height:24px;padding:0 8px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:600;color:var(--text-1);
  background:rgba(5,8,15,.74);border:1px solid var(--line-hi);
  backdrop-filter:blur(8px);
}
.entry-body h3{font-size:18px;margin-bottom:10px}
.entry-body h3 a{text-decoration:none;color:var(--text-1);transition:color .18s ease}
.entry-body h3 a:hover{color:var(--accent)}
.entry-body p{font-size:14px;color:var(--text-2);line-height:1.75}
.entry-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:500;color:var(--accent);
  background:rgba(34,227,200,.10);border:1px solid rgba(34,227,200,.24);
}
.tag-mute{color:var(--text-2);background:var(--glass);border-color:var(--line)}
.entry-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-size:14px;font-weight:500;color:var(--accent);text-decoration:none;
  text-underline-offset:3px;transition:color .18s ease,text-shadow .18s ease;
}
.entry-link:hover{text-decoration:underline;text-shadow:0 0 12px var(--accent-glow)}

/* ============ 适用场景 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.scene-card{
  padding:22px;border-radius:var(--r-l);
  background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(14px);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.scene-card:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:var(--shadow-card),0 0 22px rgba(43,123,255,.2)}
.scene-num{
  width:38px;height:38px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg, rgba(43,123,255,.28), rgba(34,227,200,.18));
  border:1px solid var(--line-hi);color:var(--accent);font-size:15px;font-weight:700;margin-bottom:16px;
}
.scene-card h3{font-size:17px;margin-bottom:10px}
.scene-card p{font-size:14px;color:var(--text-2);line-height:1.75}

/* ============ 流程时间轴 ============ */
.flow{position:relative;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px;margin-top:12px}
.flow::before{
  content:"";position:absolute;left:6%;right:6%;top:17px;height:1px;
  background:linear-gradient(90deg, transparent, var(--line-hi), var(--accent-glow), var(--line-hi), transparent);
}
.flow-node{position:relative;padding-top:54px}
.flow-node .dot{
  position:absolute;top:8px;left:50%;width:19px;height:19px;margin-left:-9.5px;border-radius:50%;
  background:var(--bg-0);border:2px solid var(--accent);box-shadow:0 0 16px var(--accent-glow);
}
.flow-node .dot::after{
  content:"";position:absolute;inset:4px;border-radius:50%;background:var(--accent);
}
.flow-node h3{font-size:16px;text-align:center;margin-bottom:8px}
.flow-node p{font-size:13.5px;color:var(--text-2);text-align:center;line-height:1.7}

/* ============ 保障条 ============ */
.guard-bar{
  display:grid;grid-template-columns:repeat(5,minmax(0,1fr));
  border-radius:var(--r-l);overflow:hidden;
  background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(14px);
}
.guard-item{padding:20px 16px;text-align:center;border-right:1px solid var(--line)}
.guard-item:last-child{border-right:0}
.guard-item b{display:block;font-size:15px;font-weight:600;color:var(--text-1)}
.guard-item span{display:block;font-size:12.5px;color:var(--text-3);margin-top:6px}

/* ============ FAQ ============ */
.faq{display:grid;gap:12px;max-width:920px;margin:0 auto}
.faq-item{
  position:relative;border-radius:var(--r-l);overflow:hidden;
  background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(14px);
  transition:border-color .2s ease,background .2s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--accent);box-shadow:0 0 12px var(--accent-glow);
  transform:scaleY(0);transform-origin:top;transition:transform .2s ease;
}
.faq-item.open{border-color:var(--line-hi);background:var(--glass-hi)}
.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;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--text-1);
}
.faq-q .ico{
  flex:none;width:24px;height:24px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-hi);color:var(--accent);font-size:15px;line-height:1;
  transition:transform .18s ease,background .18s ease;
}
.faq-item.open .faq-q .ico{transform:rotate(180deg);background:rgba(34,227,200,.12)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--text-2)}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:34px 36px;border-radius:var(--r-xl);
  background:var(--glass-hi);border:1px solid var(--line);backdrop-filter:blur(14px);
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg, var(--accent), var(--primary), transparent);
}
.cta-band h2{font-size:24px;margin-bottom:10px}
.cta-band p{font-size:15px;color:var(--text-2);max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:none}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;margin-top:96px;background:var(--bg-1);border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg, transparent, var(--accent-glow), var(--primary), transparent);
}
.foot-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;
  padding:72px 0 40px;
}
.foot-brand .logo{margin-bottom:16px}
.foot-brand p{font-size:14px;color:var(--text-2);max-width:330px}
.foot-col h4{font-size:14px;font-weight:600;margin-bottom:16px;color:var(--text-1)}
.foot-col ul{display:grid;gap:11px}
.foot-col a{font-size:14px;color:var(--text-2);text-decoration:none;transition:color .18s ease}
.foot-col a:hover{color:var(--accent)}
.foot-contact li{font-size:14px;color:var(--text-2)}
.foot-contact b{color:var(--text-3);font-weight:500}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  padding:20px 0 26px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.fb-links{display:flex;flex-wrap:wrap;gap:16px;align-items:center}
.fb-links a{color:var(--text-3);text-decoration:none;transition:color .18s ease}
.fb-links a:hover{color:var(--accent)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .section,.section-alt{padding:72px 0}
  .hero h1{font-size:34px}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .entry-grid{grid-template-columns:1fr}
  .nav-links a{padding:9px 9px;font-size:13.5px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .burger{display:inline-flex}
  .hero{padding:30px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-visual img{height:280px}
  .category-layout{grid-template-columns:1fr}
  .side-panel{position:static;padding:16px}
  .side-panel h3{margin-bottom:10px}
  .side-list{display:flex;gap:8px;overflow-x:auto;margin-bottom:14px;padding-bottom:4px;scrollbar-width:none}
  .side-list::-webkit-scrollbar{display:none}
  .side-list a{white-space:nowrap;flex:none;padding:8px 14px;border:1px solid var(--line);border-radius:999px}
  .side-list a.active{background:rgba(34,227,200,.12);border-color:rgba(34,227,200,.34)}
  .side-list a.active::before{display:none}
  .side-tip{display:none}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
  .flow::before{display:none}
  .flow-node{padding-top:0;padding-left:30px;text-align:left}
  .flow-node .dot{left:0;top:4px;margin-left:0}
  .flow-node h3,.flow-node p{text-align:left}
  .guard-bar{grid-template-columns:repeat(2,minmax(0,1fr))}
  .guard-item{border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
  .guard-item:nth-child(2n){border-right:0}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));padding:56px 0 32px}
  .cta-band{flex-direction:column;align-items:flex-start}
}
@media (max-width:767px){
  .section,.section-alt{padding:48px 0}
  .hero h1{font-size:28px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{width:100%}
  .hero-stats{gap:10px}
  .stat{flex:1 1 100%}
  .entry-card{grid-template-columns:1fr}
  .entry-thumb img{height:180px;min-height:0}
  .scene-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .guard-bar{grid-template-columns:1fr}
  .guard-item{border-right:0}
  .section-head h2{font-size:23px}
  .cta-band{padding:26px 20px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .site-footer{margin-top:56px}
}
@media (max-width:479px){
  .hero h1{font-size:24px}
  .entry-card{padding:16px}
  .logo{font-size:15.5px}
}

/* roulang page: category2 */
:root{
  --bg-0:#05080F;
  --bg-1:#0A1120;
  --bg-2:#0F1A2E;
  --glass:rgba(255,255,255,.045);
  --glass-hi:rgba(255,255,255,.075);
  --line:rgba(122,190,255,.14);
  --line-hi:rgba(122,190,255,.34);
  --primary:#2B7BFF;
  --primary-glow:rgba(43,123,255,.45);
  --accent:#22E3C8;
  --accent-glow:rgba(34,227,200,.4);
  --warn:#FFB43D;
  --danger:#FF6B6B;
  --text-1:#E8F0FF;
  --text-2:#9FB0CC;
  --text-3:#6B7C99;
  --r-s:8px;
  --r-m:12px;
  --r-l:16px;
  --r-xl:22px;
  --shadow:0 10px 30px rgba(0,0,0,.45);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(1200px 600px at 12% -8%, rgba(43,123,255,.16), transparent 62%),
    radial-gradient(900px 520px at 88% 4%, rgba(34,227,200,.10), transparent 60%),
    var(--bg-0);
  color:var(--text-1);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease),opacity .18s var(--ease);}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,textarea{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:.015em;line-height:1.3;}
p{margin:0;}
:focus{outline:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(43,123,255,.4);color:#fff;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section.tight{padding:72px 0;}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,17,32,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease),background .24s var(--ease);
}
.site-header.scrolled{
  background:rgba(10,17,32,.9);
  box-shadow:0 0 20px rgba(43,123,255,.18);
}
.nav{
  height:68px;display:flex;align-items:center;gap:28px;
  transition:height .24s var(--ease);
}
.site-header.scrolled .nav{height:60px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:22px;height:22px;border-radius:6px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:0 0 14px var(--primary-glow);
  clip-path:polygon(6px 0,100% 0,100% calc(100% - 6px),calc(100% - 6px) 100%,0 100%,0 6px);
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--text-1);white-space:nowrap;}
.logo-text em{font-style:normal;color:var(--accent);font-weight:600;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;flex:1 1 auto;}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:9px 12px;
  font-size:14px;
  color:var(--text-2);
  border-radius:8px;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  background:linear-gradient(90deg,var(--accent),var(--primary));
  border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .18s var(--ease);
}
.nav-links a:hover{color:var(--text-1);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--text-1);}
.nav-links a.active::after{transform:scaleX(1);box-shadow:0 0 12px var(--accent-glow);}
.nav-links a.active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:16px;border-radius:3px;background:var(--accent);
  box-shadow:0 0 10px var(--accent-glow);
}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-m);
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--glass);color:var(--text-2);
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease);
}
.icon-btn svg{width:18px;height:18px;}
.icon-btn:hover{color:var(--text-1);border-color:var(--line-hi);background:var(--glass-hi);box-shadow:0 0 18px rgba(43,123,255,.22);}
.icon-btn.burger{display:none;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-m);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),filter .18s var(--ease);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-primary{
  color:#fff;
  background:linear-gradient(135deg,#2B7BFF,#1B5BD8);
  box-shadow:0 0 18px var(--primary-glow);
}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 0 26px var(--primary-glow);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 10px var(--primary-glow);}
.btn-ghost{
  color:var(--text-1);
  background:var(--glass);
  border-color:var(--line);
  backdrop-filter:blur(14px);
}
.btn-ghost:hover{border-color:var(--accent);color:var(--text-1);box-shadow:0 0 20px rgba(34,227,200,.18);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-block{width:100%;}

/* ============ 抽屉 ============ */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:280px;z-index:90;
  background:rgba(10,17,32,.96);
  backdrop-filter:blur(18px);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .24s var(--ease);
  display:flex;flex-direction:column;
  padding:20px 18px 24px;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer nav{display:flex;flex-direction:column;flex:1 1 auto;}
.drawer nav a{
  position:relative;display:flex;align-items:center;
  height:52px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line);
  transition:color .18s var(--ease),background .18s var(--ease);
}
.drawer nav a:hover{color:var(--text-1);background:rgba(255,255,255,.04);}
.drawer nav a.active{color:var(--text-1);}
.drawer nav a.active::before{
  content:"";position:absolute;left:-18px;top:50%;transform:translateY(-50%);
  width:3px;height:22px;background:var(--accent);border-radius:3px;
  box-shadow:0 0 12px var(--accent-glow);
}
.drawer-foot{margin-top:18px;}
.drawer-mask{
  position:fixed;inset:0;z-index:80;background:rgba(3,6,12,.6);
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible;}

/* ============ 内页首屏 ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:76px 0 84px;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(180deg,rgba(5,8,15,.78),rgba(5,8,15,.94)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.62;
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(rgba(122,190,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(122,190,255,.06) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(60% 70% at 50% 40%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(60% 70% at 50% 40%,#000 0%,transparent 78%);
}
.page-hero .container{position:relative;z-index:1;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap;}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{opacity:.6;}
.breadcrumb .now{color:var(--text-2);}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:13px;font-weight:500;color:var(--accent);
  background:rgba(34,227,200,.1);
  border:1px solid rgba(34,227,200,.28);
  margin-bottom:18px;
}
.kicker i{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent-glow);display:block;}
.hero-title{
  font-size:48px;line-height:1.18;font-weight:700;
  max-width:820px;margin-bottom:18px;
}
.hero-title span{
  background:linear-gradient(120deg,var(--accent),var(--primary));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:18px;color:var(--text-2);max-width:700px;line-height:1.85;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.tag{
  height:26px;display:inline-flex;align-items:center;padding:0 12px;
  border-radius:999px;font-size:13px;font-weight:500;
  color:var(--text-2);background:var(--glass);border:1px solid var(--line);
}
.tag.accent{color:var(--accent);border-color:rgba(34,227,200,.3);background:rgba(34,227,200,.09);}

/* ============ 板块标题 ============ */
.sec-head{max-width:760px;margin-bottom:46px;}
.sec-label{font-size:13px;color:var(--text-3);letter-spacing:.14em;margin-bottom:12px;}
.sec-title{font-size:28px;line-height:1.32;margin-bottom:14px;}
.sec-desc{font-size:16px;color:var(--text-2);}

/* ============ 时间轴 ============ */
.timeline-wrap{
  padding:34px 30px 30px;
  border-radius:var(--r-xl);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;}
.tl-item{
  position:relative;
  padding:20px 16px 18px;
  border-radius:var(--r-l);
  background:var(--bg-1);
  border:1px solid var(--line);
  transition:border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.tl-item:hover{border-color:var(--line-hi);transform:translateY(-4px);box-shadow:0 0 26px rgba(43,123,255,.22);}
.tl-item::after{
  content:"";position:absolute;top:34px;right:-20px;width:20px;height:1px;
  background:linear-gradient(90deg,var(--line-hi),transparent);
}
.tl-item:last-child::after{display:none;}
.tl-dot{
  width:12px;height:12px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 12px var(--accent-glow);
  margin-bottom:16px;
}
.tl-step{font-size:12px;color:var(--text-3);letter-spacing:.1em;margin-bottom:8px;}
.tl-title{font-size:16px;font-weight:600;margin-bottom:8px;}
.tl-text{font-size:14px;color:var(--text-2);line-height:1.7;}

/* ============ 交错图文 ============ */
.flow{display:flex;flex-direction:column;gap:72px;}
.flow-row{display:grid;grid-template-columns:1.02fr 1fr;gap:48px;align-items:center;}
.flow-row.reverse .flow-text{order:2;}
.flow-row.reverse .flow-media{order:1;}
.flow-text h3{font-size:22px;margin-bottom:14px;}
.flow-text p{font-size:16px;color:var(--text-2);margin-bottom:18px;}
.check-list{display:flex;flex-direction:column;gap:12px;}
.check-list li{
  position:relative;padding-left:26px;font-size:15px;color:var(--text-2);
  transition:color .18s var(--ease);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;
  width:8px;height:8px;border-radius:2px;
  background:linear-gradient(135deg,var(--accent),var(--primary));
  box-shadow:0 0 10px var(--accent-glow);
}
.check-list li:hover{color:var(--text-1);}
.flow-media{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-2);
  box-shadow:var(--shadow);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.flow-media:hover{border-color:var(--line-hi);transform:translateY(-4px);box-shadow:0 14px 34px rgba(0,0,0,.5),0 0 26px rgba(43,123,255,.22);}
.flow-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.flow-media::after{
  content:"";position:absolute;inset:auto 0 0 0;height:42%;
  background:linear-gradient(180deg,transparent,rgba(5,8,15,.78));
  pointer-events:none;
}
.flow-media figcaption{
  position:absolute;left:18px;bottom:14px;z-index:2;
  font-size:13px;color:var(--text-2);
}

/* ============ 指标 ============ */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.metric-card{
  padding:26px 22px;border-radius:var(--r-l);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);
  transition:border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.metric-card:hover{border-color:var(--line-hi);transform:translateY(-4px);box-shadow:0 0 26px rgba(43,123,255,.22);}
.metric-num{font-size:36px;font-weight:700;line-height:1.1;color:var(--text-1);}
.metric-num em{font-style:normal;font-size:18px;color:var(--accent);margin-left:2px;}
.metric-label{font-size:13px;color:var(--text-3);margin-top:10px;}
.metric-note{font-size:14px;color:var(--text-2);margin-top:12px;line-height:1.7;}

/* ============ 场景卡 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.scene-card{
  position:relative;overflow:hidden;
  border-radius:var(--r-l);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);
  transition:border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
  display:flex;flex-direction:column;
}
.scene-card:hover{border-color:var(--line-hi);transform:translateY(-4px);box-shadow:0 0 26px rgba(43,123,255,.22);}
.scene-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.scene-body{padding:20px;}
.scene-body h3{font-size:18px;margin-bottom:10px;}
.scene-body p{font-size:14px;color:var(--text-2);}
.scene-badge{
  position:absolute;top:14px;left:14px;z-index:2;
  height:24px;display:inline-flex;align-items:center;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:500;
  color:var(--warn);background:rgba(255,180,61,.12);
  border:1px solid rgba(255,180,61,.32);
  backdrop-filter:blur(6px);
}

/* ============ FAQ ============ */
.faq{display:flex;flex-direction:column;gap:14px;max-width:900px;}
.faq-item{
  border-radius:var(--r-l);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  overflow:hidden;
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.faq-item:hover{border-color:var(--line-hi);}
.faq-item.open{border-color:var(--line-hi);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;
  font-size:16px;font-weight:600;color:var(--text-1);
}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform .18s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--accent);
  border-radius:2px;transform:translate(-50%,-50%);
}
.faq-icon::before{width:12px;height:2px;}
.faq-icon::after{width:2px;height:12px;transition:opacity .18s var(--ease);}
.faq-item.open .faq-icon{transform:rotate(180deg);}
.faq-item.open .faq-icon::after{opacity:0;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .22s var(--ease);
}
.faq-a p{
  padding:0 22px 22px 22px;
  font-size:15px;line-height:1.8;color:var(--text-2);
  border-left:3px solid transparent;
}
.faq-item.open .faq-a p{border-left-color:var(--accent);}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-xl);
  background:linear-gradient(150deg,rgba(15,26,46,.96),rgba(10,17,32,.96));
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  padding:44px 42px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--accent),var(--primary),transparent);
  opacity:.9;
}
.cta-band h2{font-size:26px;margin-bottom:12px;}
.cta-band p{font-size:15px;color:var(--text-2);max-width:640px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,17,32,.7),rgba(5,8,15,.96));
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--accent-glow),var(--primary-glow),transparent);
}
.foot-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;padding:64px 0 44px;
}
.foot-brand p{font-size:14px;color:var(--text-2);margin-top:16px;max-width:360px;line-height:1.8;}
.foot-col h4{font-size:15px;margin-bottom:18px;color:var(--text-1);}
.foot-col ul{display:flex;flex-direction:column;gap:12px;}
.foot-col a{font-size:14px;color:var(--text-2);}
.foot-col a:hover{color:var(--accent);}
.foot-contact li{font-size:14px;color:var(--text-2);}
.foot-contact b{color:var(--text-1);font-weight:500;}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:22px 0 34px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.fb-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.fb-links a{color:var(--text-3);}
.fb-links a:hover{color:var(--accent);}

/* ============ 响应式 ============ */
@media (min-width:1400px){
  .container{max-width:1360px;}
}
@media (max-width:1199px){
  .nav-links{gap:2px;}
  .nav-links a{padding:9px 9px;font-size:13px;}
  .hero-title{font-size:40px;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .icon-btn.burger{display:inline-flex;}
  .nav-right .btn-primary{display:none;}
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .page-hero{padding:56px 0 64px;}
  .hero-title{font-size:34px;}
  .hero-sub{font-size:16px;}
  .timeline{grid-template-columns:repeat(2,1fr);}
  .tl-item::after{display:none;}
  .flow-row{grid-template-columns:1fr;gap:26px;}
  .flow-row.reverse .flow-text{order:1;}
  .flow-row.reverse .flow-media{order:2;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 28px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 36px;}
}
@media (max-width:767px){
  .section{padding:56px 0;}
  .hero-title{font-size:28px;}
  .sec-title{font-size:22px;}
  .timeline{grid-template-columns:1fr;}
  .timeline-wrap{padding:22px 18px;}
  .metrics{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .flow{gap:52px;}
  .faq-q{padding:18px 18px;font-size:15px;}
  .faq-a p{padding:0 18px 18px 18px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .page-hero{padding:44px 0 52px;}
  .hero-title{font-size:25px;}
  .metric-card,.scene-body{padding:16px;}
  .cta-band{padding:26px 18px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
}

/* roulang page: category3 */
:root{
  --bg-0:#05080F;
  --bg-1:#0A1120;
  --bg-2:#0F1A2E;
  --glass:rgba(255,255,255,.045);
  --glass-hi:rgba(255,255,255,.075);
  --line:rgba(122,190,255,.14);
  --line-hi:rgba(122,190,255,.34);
  --primary:#2B7BFF;
  --primary-glow:rgba(43,123,255,.45);
  --accent:#22E3C8;
  --accent-glow:rgba(34,227,200,.4);
  --warn:#FFB43D;
  --text-1:#E8F0FF;
  --text-2:#9FB0CC;
  --text-3:#6B7C99;
  --r-s:8px;
  --r-m:12px;
  --r-l:16px;
  --r-xl:22px;
  --shadow-card:0 10px 30px rgba(0,0,0,.45);
  --shadow-glow:0 0 24px var(--primary-glow);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:14px}
a{color:inherit;text-decoration:none;transition:color .18s ease,opacity .18s ease}
a:hover{color:var(--accent)}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:.015em;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
section{position:relative}

/* ============ HEADER ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:90;
  background:rgba(10,17,32,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:height .24s ease,box-shadow .24s ease,background .24s ease;
}
.site-header.scrolled{
  box-shadow:0 0 20px rgba(43,123,255,.18);
  background:rgba(8,14,26,.86);
}
.nav{display:flex;align-items:center;gap:28px;height:68px;transition:height .24s ease}
.site-header.scrolled .nav{height:60px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:24px;height:24px;border-radius:6px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:0 0 14px var(--primary-glow);
  clip-path:polygon(0 0,100% 0,100% 72%,72% 100%,0 100%);
}
.logo-text{font-size:17px;font-weight:700;color:var(--text-1);letter-spacing:.02em;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--accent);margin-left:2px}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-links a{
  position:relative;
  font-size:14px;
  color:var(--text-2);
  padding:6px 0;
  transition:color .18s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  transition:right .18s ease;
  border-radius:2px;
}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after{right:0}
.nav-links a.active{color:var(--text-1)}
.nav-links a.active::after{right:0;box-shadow:0 0 12px var(--accent-glow)}
.nav-links a.active::before{
  content:"";position:absolute;left:-12px;top:50%;transform:translateY(-50%);
  width:3px;height:14px;border-radius:3px;background:var(--accent);
  box-shadow:0 0 10px var(--accent-glow);
}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-links + .nav-right{margin-left:0}
.icon-btn{
  width:38px;height:38px;border-radius:10px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-2);
  display:inline-flex;align-items:center;justify-content:center;
  transition:color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.icon-btn:hover{color:var(--accent);border-color:var(--line-hi);box-shadow:0 0 18px rgba(34,227,200,.22)}
.icon-btn:active{transform:translateY(1px)}
.icon-btn svg{width:18px;height:18px}
.burger{display:none}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 22px;
  border-radius:var(--r-m);
  font-size:15px;font-weight:600;
  letter-spacing:.02em;
  white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#2B7BFF,#1B5BD8);
  color:#fff;
  box-shadow:0 0 18px var(--primary-glow);
}
.btn-primary:hover{color:#fff;filter:brightness(1.1);box-shadow:0 0 26px var(--primary-glow);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 12px var(--primary-glow)}
.btn-ghost{
  background:var(--glass);
  border:1px solid var(--line);
  color:var(--text-1);
  backdrop-filter:blur(14px);
}
.btn-ghost:hover{border-color:var(--accent);color:var(--text-1);box-shadow:0 0 20px rgba(34,227,200,.18);transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.text-link{
  color:var(--accent);font-size:14px;font-weight:500;
  text-decoration:underline;text-underline-offset:3px;
  transition:box-shadow .18s ease,color .18s ease;
}
.text-link:hover{text-shadow:0 0 12px var(--accent-glow)}

/* ============ HERO ============ */
.hero{
  position:relative;
  margin-top:68px;
  padding:84px 0 72px;
  overflow:hidden;
  background:
    linear-gradient(180deg,rgba(5,8,15,.78) 0%,rgba(5,8,15,.92) 62%,var(--bg-0) 100%),
    radial-gradient(760px 420px at 16% 8%,rgba(43,123,255,.24),transparent 62%),
    radial-gradient(620px 380px at 88% 22%,rgba(34,227,200,.14),transparent 66%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(122,190,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(122,190,255,.05) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(70% 60% at 50% 30%,#000 0%,transparent 100%);
  -webkit-mask-image:radial-gradient(70% 60% at 50% 30%,#000 0%,transparent 100%);
}
.hero .container{position:relative;z-index:2}
.crumb{font-size:13px;color:var(--text-3);margin-bottom:22px;display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--accent)}
.crumb .sep{color:rgba(107,124,153,.6)}
.crumb .cur{color:var(--text-2)}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;border-radius:999px;
  background:rgba(34,227,200,.1);
  border:1px solid rgba(34,227,200,.28);
  color:var(--accent);font-size:13px;font-weight:500;
  margin-bottom:20px;
}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent-glow)}
.dot.warn{background:var(--warn);box-shadow:0 0 10px rgba(255,180,61,.5)}
.hero h1{
  font-size:44px;
  line-height:1.24;
  font-weight:700;
  max-width:900px;
  background:linear-gradient(120deg,#FFFFFF 30%,#BBD6FF 72%,#8FF3E4 100%);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
.hero-sub{
  margin-top:18px;max-width:720px;
  font-size:17px;color:var(--text-2);line-height:1.85;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{
  margin-top:44px;
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:0;
  border:1px solid var(--line);
  border-radius:var(--r-l);
  background:var(--glass);
  backdrop-filter:blur(14px);
  overflow:hidden;
  max-width:720px;
}
.hero-stats .st{padding:18px 22px;border-right:1px solid var(--line)}
.hero-stats .st:last-child{border-right:0}
.hero-stats b{display:block;font-size:26px;font-weight:700;color:var(--text-1);line-height:1.2}
.hero-stats span{display:block;margin-top:4px;font-size:13px;color:var(--text-3)}

/* ============ SECTION BASE ============ */
.section{padding:96px 0}
.section.tight{padding:72px 0}
.sec-head{margin-bottom:40px;max-width:760px}
.sec-head .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--accent);font-weight:500;
  letter-spacing:.08em;margin-bottom:12px;
}
.sec-head .kicker::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--accent);box-shadow:0 0 10px var(--accent-glow)}
.sec-head h2{font-size:28px;font-weight:600}
.sec-head h2 em{font-style:normal;color:var(--accent)}
.sec-head p{margin-top:14px;color:var(--text-2);font-size:16px}
.sec-head.row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;flex-wrap:wrap}

/* ============ BENTO GRID ============ */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.b-card{
  position:relative;
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px);
  border-radius:var(--r-l);
  padding:24px;
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease,background .2s ease;
  display:flex;flex-direction:column;
}
.b-card:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:var(--shadow-card),0 0 26px rgba(43,123,255,.22);background:var(--glass-hi)}
.b-card span,.b-card h3,.b-card p,.b-card a{position:relative;z-index:2}
.b-lg{grid-column:span 6;padding:0;min-height:360px;justify-content:flex-end}
.b-lg .b-media{position:absolute;inset:0;z-index:0}
.b-lg .b-media img{width:100%;height:100%;object-fit:cover;border-radius:0}
.b-lg .b-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,8,15,.1) 0%,rgba(5,8,15,.8) 58%,rgba(5,8,15,.96) 100%)}
.b-lg .b-body{padding:28px;position:relative;z-index:2}
.b-md{grid-column:span 3}
.b-sm{grid-column:span 4}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:13px;font-weight:500;
  background:var(--glass-hi);
  border:1px solid var(--line);
  color:var(--text-2);
  margin-bottom:14px;
  width:max-content;
}
.badge.acc{color:var(--accent);border-color:rgba(34,227,200,.3);background:rgba(34,227,200,.08)}
.badge.gold{color:var(--warn);border-color:rgba(255,180,61,.3);background:rgba(255,180,61,.08)}
.b-card h3{font-size:19px;margin-bottom:10px}
.b-lg h3{font-size:24px}
.b-card p{color:var(--text-2);font-size:15px;line-height:1.78}
.b-card .b-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;gap:8px;font-size:14px;color:var(--accent)}
.b-thumb{border-radius:12px;overflow:hidden;margin-bottom:18px;background:var(--bg-2)}
.b-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .4s ease}
.b-card:hover .b-thumb img{transform:scale(1.04)}
.b-list{margin-top:14px;display:grid;gap:10px}
.b-list li{display:flex;gap:8px;font-size:14px;color:var(--text-2);line-height:1.7}
.b-list li::before{content:"";flex:0 0 auto;width:6px;height:6px;margin-top:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px var(--accent-glow)}

/* ============ COMPARE PANEL ============ */
.cmp{
  border:1px solid var(--line);
  border-radius:var(--r-l);
  background:linear-gradient(180deg,rgba(15,26,46,.72),rgba(10,17,32,.6));
  backdrop-filter:blur(14px);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.cmp-head{
  display:grid;grid-template-columns:1.1fr 1fr 1.4fr;
  gap:16px;padding:16px 24px;
  font-size:13px;color:var(--text-3);letter-spacing:.06em;
  border-bottom:1px solid var(--line);
  background:rgba(255,255,255,.02);
}
.cmp-row{
  display:grid;grid-template-columns:1.1fr 1fr 1.4fr;
  gap:16px;padding:20px 24px;
  border-bottom:1px solid var(--line);
  align-items:start;
  transition:background .18s ease;
}
.cmp-row:last-child{border-bottom:0}
.cmp-row:hover{background:rgba(255,255,255,.04)}
.cmp-row:hover .cmp-key{border-left-color:var(--accent);padding-left:14px}
.cmp-key{
  display:flex;align-items:center;gap:10px;
  font-size:15px;font-weight:600;color:var(--text-1);
  border-left:2px solid transparent;
  padding-left:0;
  transition:border-color .18s ease,padding .18s ease;
}
.cmp-ico{
  width:28px;height:28px;flex:0 0 auto;border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(43,123,255,.14);
  border:1px solid rgba(43,123,255,.3);
  color:#7FB6FF;font-size:13px;font-weight:700;
}
.cmp-common{font-size:15px;color:var(--text-2)}
.cmp-ours{font-size:15px;color:var(--text-1)}
.cmp-ours strong{color:var(--accent);font-weight:600}

/* ============ STEPS ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;margin-top:12px}
.steps::before{
  content:"";position:absolute;top:15px;left:6%;right:6%;height:1px;
  background:linear-gradient(90deg,transparent,var(--line-hi) 12%,var(--line-hi) 88%,transparent);
}
.step{position:relative;padding:0 20px}
.step-dot{
  width:12px;height:12px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 5px rgba(34,227,200,.12),0 0 16px var(--accent-glow);
  position:relative;z-index:2;margin-bottom:22px;
}
.step h3{font-size:16px;margin-bottom:8px}
.step p{font-size:14px;color:var(--text-2);line-height:1.75}
.step .n{position:absolute;top:-4px;left:34px;font-size:12px;color:var(--text-3);letter-spacing:.14em}

/* ============ SCENE CARDS ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene{
  border:1px solid var(--line);border-radius:var(--r-l);
  background:var(--glass);backdrop-filter:blur(14px);
  padding:26px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.scene:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:var(--shadow-card),0 0 26px rgba(43,123,255,.2)}
.scene h3{font-size:17px;margin:16px 0 10px}
.scene p{font-size:15px;color:var(--text-2)}
.scene .b-thumb{margin-bottom:0}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:960px}
.faq{
  border:1px solid var(--line);
  border-radius:var(--r-l);
  background:var(--glass);
  backdrop-filter:blur(14px);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq.open{border-color:var(--line-hi);box-shadow:0 0 22px rgba(43,123,255,.16)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;
  font-size:16px;font-weight:600;color:var(--text-1);
  transition:color .18s ease;
}
.faq-q:hover{color:var(--accent)}
.faq-ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--accent);font-size:16px;line-height:1;
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.faq.open .faq-ico{transform:rotate(180deg);border-color:var(--accent);box-shadow:0 0 14px rgba(34,227,200,.28)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq.open .faq-a{max-height:420px}
.faq-a .inner{
  padding:0 22px 20px 22px;
  font-size:15px;line-height:1.85;color:var(--text-2);
  border-left:3px solid var(--accent);
  margin-left:22px;padding-left:18px;
}

/* ============ CTA BAND ============ */
.cta-band{
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  background:
    radial-gradient(600px 300px at 12% 0%,rgba(43,123,255,.24),transparent 62%),
    radial-gradient(520px 280px at 92% 100%,rgba(34,227,200,.16),transparent 64%),
    linear-gradient(180deg,rgba(15,26,46,.9),rgba(8,14,26,.86));
  backdrop-filter:blur(14px);
  padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--accent) 30%,var(--primary) 70%,transparent);
}
.cta-band h2{font-size:26px;margin-bottom:12px}
.cta-band p{color:var(--text-2);font-size:16px;max-width:620px}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto}
.cta-note{margin-top:14px;font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:8px}

/* ============ FOOTER ============ */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,17,32,.7),rgba(5,8,15,.95));
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--primary-glow),transparent);
}
.foot-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;padding:64px 0 40px;
}
.foot-brand p{margin-top:16px;font-size:14px;color:var(--text-2);line-height:1.8;max-width:340px}
.foot-col h4{font-size:15px;margin-bottom:18px;color:var(--text-1)}
.foot-col ul{display:grid;gap:12px}
.foot-col li a{font-size:14px;color:var(--text-2);transition:color .18s ease,padding .18s ease}
.foot-col li a:hover{color:var(--accent);padding-left:4px}
.foot-contact li{font-size:14px;color:var(--text-2);line-height:1.75}
.foot-contact b{color:var(--text-3);font-weight:500}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0 34px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);flex-wrap:wrap;
}
.fb-links{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.fb-links a{color:var(--text-3)}
.fb-links a:hover{color:var(--accent)}

/* ============ MOBILE DRAWER ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,6,12,.6);
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;z-index:95;
}
.drawer-mask.show{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:280px;z-index:96;
  background:rgba(10,17,32,.96);
  backdrop-filter:blur(18px);
  border-left:1px solid var(--line);
  transform:translateX(100%);
  transition:transform .24s ease;
  display:flex;flex-direction:column;
  padding:22px 0 20px;
}
.drawer.show{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 20px 18px;border-bottom:1px solid var(--line)}
.drawer-body{flex:1;overflow-y:auto;padding:14px 0}
.drawer-body a{
  display:flex;align-items:center;
  font-size:16px;color:var(--text-2);
  padding:0 20px;height:52px;
  border-left:3px solid transparent;
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.drawer-body a:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.drawer-body a.active{color:var(--text-1);border-left-color:var(--accent);background:rgba(34,227,200,.06);box-shadow:inset 0 0 22px rgba(34,227,200,.06)}
.drawer-foot{padding:16px 20px 0;border-top:1px solid var(--line)}
.drawer-foot .btn{width:100%}

/* ============ RESPONSIVE ============ */
@media (min-width:1400px){
  .container{max-width:1360px}
}
@media (max-width:1199px){
  .container{padding:0 24px}
  .nav-links{gap:18px}
  .nav-links a{font-size:13px}
  .hero h1{font-size:36px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .burger{display:inline-flex}
  .hero{margin-top:64px;padding:64px 0 56px}
  .hero h1{font-size:32px}
  .section{padding:72px 0}
  .bento{grid-template-columns:repeat(6,1fr)}
  .b-lg{grid-column:span 6;min-height:320px}
  .b-md{grid-column:span 3}
  .b-sm{grid-column:span 3}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);row-gap:34px}
  .steps::before{display:none}
  .step{padding:0 14px}
  .cmp-head{display:none}
  .cmp-row{grid-template-columns:1fr;gap:10px;padding:20px}
  .cmp-common::before{content:"常规做法：";color:var(--text-3)}
  .cmp-ours::before{content:"平台说明：";color:var(--text-3)}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px}
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:30px;padding:52px 0 32px}
}
@media (max-width:767px){
  body{font-size:15px}
  .container{padding:0 18px}
  .nav{height:62px}
  .logo-text{font-size:16px}
  .hero{margin-top:62px;padding:48px 0 44px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
  .hero-stats{grid-template-columns:1fr;max-width:none}
  .hero-stats .st{border-right:0;border-bottom:1px solid var(--line)}
  .hero-stats .st:last-child{border-bottom:0}
  .section,.section.tight{padding:56px 0}
  .sec-head h2{font-size:22px}
  .bento{grid-template-columns:1fr}
  .b-lg,.b-md,.b-sm{grid-column:span 1;min-height:0}
  .b-lg{padding:0}
  .scene-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr;row-gap:28px}
  .cta-band{padding:28px 22px;border-radius:var(--r-l)}
  .cta-band h2{font-size:21px}
  .cta-band .cta-actions{width:100%}
  .cta-band .cta-actions .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .faq-q{font-size:15px;padding:16px 18px}
  .faq-a .inner{margin-left:18px;padding-left:14px;padding-right:18px}
}
@media (max-width:479px){
  .container{padding:0 16px}
  .hero h1{font-size:25px}
  .b-card{padding:18px}
  .b-lg .b-body{padding:22px}
}