/* roulang page: index */
:root{
  --ink-900:#14101A;
  --ink-700:#2A2333;
  --ink-500:#5B5466;
  --line:#E6E1EC;
  --bg:#FFFFFF;
  --bg-soft:#F6F4F9;
  --bg-dark:#100C16;
  --brand-500:#FF2E6E;
  --brand-600:#D9164F;
  --accent-500:#7A5CFF;
  --accent-400:#FFB020;
  --r-card:14px;
  --r-btn:10px;
  --shadow-card:0 8px 24px rgba(20,16,26,.08);
  --shadow-hover:0 14px 32px rgba(20,16,26,.14);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--accent-500);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4{margin:0;line-height:1.35;color:var(--ink-900);letter-spacing:.2px}
h1{font-size:40px;font-weight:800}
h2{font-size:30px;font-weight:800}
h3{font-size:20px;font-weight:700}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:15px}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:3px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ===== Header / Nav ===== */
.site-header{position:sticky;top:0;z-index:80;background:var(--bg-dark)}
.site-header::after{content:"";display:block;height:1px;background:linear-gradient(90deg,rgba(255,46,110,.85),rgba(122,92,255,.85),rgba(255,46,110,.2))}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:19px;letter-spacing:.5px;text-decoration:none}
.logo:hover{color:#fff;text-decoration:none}
.logo i{width:9px;height:9px;border-radius:50%;background:var(--brand-500);box-shadow:0 0 12px rgba(255,46,110,.9);display:inline-block;flex:none}
.logo em{font-style:normal;color:#fff;opacity:.72;font-weight:600}
.nav-menu{display:flex;align-items:center;gap:6px;margin:0;padding:0;list-style:none}
.nav-menu a{display:inline-block;padding:8px 14px;border-radius:999px;color:rgba(255,255,255,.76);font-size:15px;font-weight:500;position:relative;text-decoration:none;transition:color .2s ease,background .2s ease}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.07);text-decoration:none}
.nav-menu a.is-active{color:#fff;background:rgba(255,46,110,.14);box-shadow:0 0 0 1px rgba(255,46,110,.5) inset,0 0 16px rgba(255,46,110,.28)}
.nav-actions{display:flex;align-items:center;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:700;line-height:1.2;text-decoration:none;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;white-space:nowrap}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--brand-500);color:#fff;box-shadow:0 0 0 1px rgba(255,46,110,.4),0 6px 20px rgba(255,46,110,.35)}
.btn-primary:hover{background:var(--brand-600);color:#fff;box-shadow:0 0 0 1px rgba(255,46,110,.6),0 10px 26px rgba(255,46,110,.5)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(122,92,255,.7)}
.btn-ghost:hover{color:#fff;border-color:var(--accent-500);background:rgba(122,92,255,.16);box-shadow:0 0 18px rgba(122,92,255,.35)}
.btn-outline-dark{background:transparent;color:var(--ink-900);border-color:var(--line)}
.btn-outline-dark:hover{border-color:var(--brand-500);color:var(--brand-600);box-shadow:var(--shadow-card)}
.btn-light{background:#fff;color:var(--ink-900);border-color:rgba(255,255,255,.6)}
.btn-light:hover{background:rgba(255,255,255,.9);color:var(--ink-900)}
.btn-block{width:100%}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.05);color:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:20px;height:2px;background:#fff;border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.drawer-mask{position:fixed;inset:0;background:rgba(16,12,22,.62);backdrop-filter:blur(2px);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:90}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;width:min(320px,86vw);height:100%;background:var(--bg-dark);z-index:95;transform:translateX(102%);transition:transform .28s ease;padding:26px 22px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;border-left:1px solid rgba(255,46,110,.35)}
.drawer.is-open{transform:translateX(0)}
.drawer-title{color:rgba(255,255,255,.55);font-size:13px;letter-spacing:2px;margin-bottom:10px}
.drawer a{display:block;padding:14px 12px;border-radius:10px;color:rgba(255,255,255,.86);font-size:16px;font-weight:600;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.07)}
.drawer a:hover{background:rgba(255,46,110,.14);color:#fff;text-decoration:none}
.drawer .btn{margin-top:18px;justify-content:center}

/* ===== Hero ===== */
.hero{position:relative;background:var(--bg-dark);color:#fff;overflow:hidden;padding:84px 0 78px}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(58% 66% at 16% 18%,rgba(255,46,110,.26),transparent 62%),
  radial-gradient(52% 58% at 86% 10%,rgba(122,92,255,.30),transparent 64%),
  radial-gradient(46% 52% at 68% 96%,rgba(255,176,32,.16),transparent 66%);
  pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;background-image:url('/assets/images/7a1cebd9387da5da.webp');background-size:cover;background-position:center;opacity:.14;pointer-events:none}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(255,46,110,.14);border:1px solid rgba(255,46,110,.45);color:#FFD5E2;font-size:13px;font-weight:600;letter-spacing:.5px}
.hero h1{color:#fff;font-size:40px;line-height:1.3;margin:20px 0 0;letter-spacing:.4px}
.hero h1 mark{background:none;color:#fff;box-shadow:inset 0 -10px 0 rgba(255,46,110,.35);padding:0 2px}
.hero-lead{margin:22px 0 0;color:rgba(255,255,255,.78);font-size:16px;line-height:1.9;max-width:600px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 0}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 0}
.hero-badges span{display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:999px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.86);font-size:13px}
.hero-badges span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-400);box-shadow:0 0 10px rgba(255,176,32,.9)}
.hero-visual{position:relative}
.hero-photo{width:100%;height:340px;object-fit:cover;border-radius:18px;border:1px solid rgba(255,255,255,.14);box-shadow:0 24px 60px rgba(0,0,0,.45)}
.float-card{position:absolute;background:rgba(20,16,26,.9);border:1px solid rgba(255,255,255,.16);border-radius:12px;padding:12px 16px;backdrop-filter:blur(6px);box-shadow:0 12px 30px rgba(0,0,0,.4)}
.float-card span{display:block;font-size:12px;color:rgba(255,255,255,.6);letter-spacing:.5px}
.float-card strong{display:block;font-size:22px;color:var(--accent-400);font-variant-numeric:tabular-nums;letter-spacing:.5px}
.fc-1{left:-16px;bottom:26px}
.fc-2{right:-10px;top:-18px}

/* ===== Section basics ===== */
.section{padding:88px 0}
.section-soft{background:var(--bg-soft)}
.section-dark{background:var(--bg-dark);color:#fff}
.section-dark h2,.section-dark h3{color:#fff}
.section-dark p{color:rgba(255,255,255,.72)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;color:var(--brand-500);margin-bottom:12px}
.section-dark .eyebrow{color:#FF8FB1}
.section-head h2{margin-bottom:14px}
.section-desc{color:var(--ink-500);font-size:16px;line-height:1.85}
.section-dark .section-desc{color:rgba(255,255,255,.72)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:999px;background:rgba(122,92,255,.12);color:#5B3FD1;font-size:12px;font-weight:700;letter-spacing:.3px}
.tag{display:inline-block;padding:4px 12px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink-500);font-size:13px}

/* ===== Stats ===== */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px 22px 22px;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease;overflow:hidden}
.stat-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--brand-500),var(--accent-500))}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.stat-num{font-size:40px;font-weight:800;color:var(--accent-400);font-variant-numeric:tabular-nums;line-height:1.1;letter-spacing:-.5px;text-shadow:0 0 22px rgba(255,176,32,.35)}
.stat-num small{font-size:15px;font-weight:700;color:var(--ink-500);margin-left:4px;text-shadow:none}
.stat-label{margin-top:8px;font-size:15px;font-weight:700;color:var(--ink-900)}
.stat-note{margin-top:6px;font-size:13px;color:var(--ink-500);line-height:1.7}

/* ===== Matrix ===== */
.matrix{display:grid;grid-template-columns:1.05fr 1fr;gap:22px}
.matrix-col{display:grid;gap:22px}
.matrix-big{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:30px 28px;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;display:block;color:inherit;text-decoration:none}
.matrix-big:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(255,46,110,.4);text-decoration:none;color:inherit}
.matrix-big .ico{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:rgba(255,46,110,.12);color:var(--brand-600);font-weight:800;font-size:18px;margin-bottom:16px}
.matrix-big h3{margin-bottom:10px}
.matrix-big p{color:var(--ink-500);font-size:15px;line-height:1.8;margin:0}
.matrix-big .more{display:inline-block;margin-top:14px;font-size:14px;font-weight:700;color:var(--brand-600)}
.matrix-sm{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.mini-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px 20px;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.mini-card .ico{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:rgba(122,92,255,.12);color:#5B3FD1;font-weight:800;font-size:15px;margin-bottom:12px}
.mini-card h3{font-size:17px;margin-bottom:8px}
.mini-card p{color:var(--ink-500);font-size:14px;line-height:1.75;margin:0}

/* ===== Compare ===== */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:0;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-card)}
.compare-col{padding:34px 30px}
.compare-old{background:#F1EEF5}
.compare-new{background:var(--bg-dark);border-left:2px solid rgba(255,46,110,.5);position:relative}
.compare-new::before{content:"";position:absolute;inset:0;background:radial-gradient(60% 70% at 90% 0%,rgba(255,46,110,.2),transparent 65%);pointer-events:none}
.compare h3{font-size:19px;margin-bottom:20px;position:relative}
.compare-new h3{color:#fff}
.compare-list{list-style:none;margin:0;padding:0;display:grid;gap:18px;position:relative}
.compare-list li{font-size:15px;line-height:1.75;color:var(--ink-500)}
.compare-list li b{display:block;color:var(--ink-900);font-size:15px;margin-bottom:2px}
.compare-new .compare-list li{color:rgba(255,255,255,.72)}
.compare-new .compare-list li b{color:#fff;display:flex;align-items:center;gap:8px}
.compare-new .compare-list li b::before{content:"";width:16px;height:16px;border-radius:50%;background:rgba(255,46,110,.2);border:1px solid var(--brand-500);display:inline-flex;align-items:center;justify-content:center;flex:none;box-shadow:0 0 12px rgba(255,46,110,.55)}
.compare-old .compare-list li b{display:flex;align-items:center;gap:8px}
.compare-old .compare-list li b::before{content:"";width:14px;height:2px;background:#B9B2C6;border-radius:2px;flex:none}

/* ===== Timeline ===== */
.timeline{position:relative;display:grid;gap:28px}
.timeline::before{content:"";position:absolute;left:50%;top:6px;bottom:6px;width:2px;transform:translateX(-50%);background:linear-gradient(180deg,rgba(255,46,110,.7),rgba(122,92,255,.35),rgba(255,46,110,.1))}
.tl-item{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:40px;position:relative}
.tl-item .tl-text{padding:0 8px}
.tl-item:nth-child(even) .tl-text{order:2;text-align:left}
.tl-item .tl-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--shadow-card);position:relative}
.tl-item::after{content:"";position:absolute;left:50%;top:50%;width:13px;height:13px;border-radius:50%;background:var(--brand-500);transform:translate(-50%,-50%);box-shadow:0 0 0 4px rgba(255,46,110,.16),0 0 18px rgba(255,46,110,.8)}
.tl-ver{font-size:12px;font-weight:800;letter-spacing:1.5px;color:var(--brand-500);margin-bottom:8px;display:block}
.tl-item h3{font-size:19px;margin-bottom:8px}
.tl-item p{color:var(--ink-500);font-size:14px;line-height:1.8;margin:0}

/* ===== News / CMS list ===== */
.news-list{display:grid;gap:16px}
.news-item{display:grid;grid-template-columns:200px 1fr;gap:24px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:18px;box-shadow:var(--shadow-card);text-decoration:none;color:inherit;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(122,92,255,.4);text-decoration:none;color:inherit}
.news-item:first-child{grid-template-columns:280px 1fr;padding:22px}
.news-thumb{border-radius:10px;overflow:hidden;background:var(--bg-soft);aspect-ratio:16/10}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-item:hover .news-thumb img{transform:scale(1.04)}
.news-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--ink-500);margin-bottom:8px;flex-wrap:wrap}
.news-body h3{font-size:19px;margin-bottom:8px;line-height:1.5}
.news-item:first-child .news-body h3{font-size:22px}
.news-body p{color:var(--ink-500);font-size:14px;line-height:1.8;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-more{display:inline-block;margin-top:12px;font-size:13px;font-weight:700;color:var(--accent-500)}
.news-empty{background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);padding:52px 24px;text-align:center;color:var(--ink-500)}
.news-empty .e-ico{width:52px;height:52px;border-radius:50%;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:22px;color:var(--accent-500)}
.news-foot{margin-top:28px;text-align:center}

/* ===== Steps ===== */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:30px 26px;box-shadow:var(--shadow-card);position:relative;transition:transform .2s ease,box-shadow .2s ease}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.step-num{width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;color:#fff;background:linear-gradient(135deg,var(--brand-500),var(--accent-500));box-shadow:0 8px 20px rgba(255,46,110,.28);margin-bottom:16px;font-variant-numeric:tabular-nums}
.step h3{font-size:18px;margin-bottom:8px}
.step p{color:var(--ink-500);font-size:14px;line-height:1.8;margin:0}

/* ===== City / scene grid ===== */
.city-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:22px}
.city-big{position:relative;border-radius:var(--r-card);overflow:hidden;min-height:320px;display:flex;align-items:flex-end;border:1px solid var(--line);box-shadow:var(--shadow-card)}
.city-big img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.city-big .city-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(16,12,22,.15),rgba(16,12,22,.88))}
.city-big .city-body{position:relative;padding:30px;color:#fff}
.city-big h3{color:#fff;font-size:22px;margin-bottom:8px}
.city-big p{color:rgba(255,255,255,.78);font-size:14px;line-height:1.8;margin:0}
.city-sm{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.scene-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px 20px;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.scene-card h3{font-size:17px;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.scene-card h3::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--accent-500);flex:none}
.scene-card p{color:var(--ink-500);font-size:14px;line-height:1.75;margin:0}

/* ===== Guarantee ===== */
.guarantee-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.g-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease}
.g-card:nth-child(even){background:#fff}
.g-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.g-card .ico{width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:rgba(255,176,32,.16);color:#9A6100;font-weight:800;font-size:17px;margin-bottom:14px}
.g-card h3{font-size:17px;margin-bottom:8px}
.g-card p{color:var(--ink-500);font-size:14px;line-height:1.75;margin:0}

/* ===== Voices ===== */
.voices{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.voice-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease}
.voice-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.voice-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,rgba(255,46,110,.85),rgba(122,92,255,.85));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;flex:none}
.voice-name{font-weight:700;font-size:15px;line-height:1.4}
.voice-city{font-size:12px;color:var(--ink-500)}
.voice-card p{color:var(--ink-700);font-size:14px;line-height:1.85;margin:0 0 14px}
.stars{color:var(--accent-400);font-size:14px;letter-spacing:2px}

/* ===== Quick answers ===== */
.qa-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.qa-card{background:#fff;border:1px solid var(--line);border-left:3px solid var(--brand-500);border-radius:10px;padding:20px 22px;box-shadow:var(--shadow-card)}
.qa-card h3{font-size:16px;margin-bottom:8px}
.qa-card p{color:var(--ink-500);font-size:14px;line-height:1.8;margin:0}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.open{border-color:rgba(255,46,110,.45);box-shadow:var(--shadow-card)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;background:none;border:0;text-align:left;font-size:16px;font-weight:700;color:var(--ink-900);line-height:1.6}
.faq-q:hover{color:var(--brand-600)}
.faq-ico{width:26px;height:26px;flex:none;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--brand-600);font-size:16px;font-weight:800;transition:transform .25s ease,background .25s ease}
.faq-item.open .faq-ico{transform:rotate(45deg);background:rgba(255,46,110,.1)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 22px 22px;background:var(--bg-soft);margin:0 0;padding-top:16px;color:var(--ink-500);font-size:15px;line-height:1.85}

/* ===== Download bar ===== */
.download{position:relative;background:var(--bg-dark);color:#fff;overflow:hidden;padding:64px 0}
.download::before{content:"";position:absolute;inset:0;background:
 radial-gradient(50% 70% at 12% 30%,rgba(255,46,110,.25),transparent 62%),
 radial-gradient(50% 70% at 82% 70%,rgba(122,92,255,.28),transparent 64%);pointer-events:none}
.download-grid{position:relative;display:grid;grid-template-columns:1fr 260px;gap:48px;align-items:center}
.download h2{color:#fff;font-size:28px;margin-bottom:12px}
.download p{color:rgba(255,255,255,.75);font-size:15px;line-height:1.85;margin:0 0 22px;max-width:620px}
.dl-btns{display:flex;flex-wrap:wrap;gap:14px}
.qr-box{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-card);padding:18px;text-align:center}
.qr-box img{width:100%;border-radius:8px;aspect-ratio:1/1;object-fit:cover}
.qr-box span{display:block;margin-top:10px;font-size:13px;color:rgba(255,255,255,.68)}

/* ===== Lead form ===== */
.lead-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:start}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:32px;box-shadow:var(--shadow-card)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:700;margin-bottom:8px;color:var(--ink-700)}
.field label i{color:var(--brand-600);font-style:normal;margin-left:2px}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;color:var(--ink-900);transition:border-color .2s ease,box-shadow .2s ease}
.field input::placeholder,.field textarea::placeholder{color:#A9A2B6}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent-500);box-shadow:0 0 0 3px rgba(122,92,255,.16)}
.field textarea{resize:vertical;min-height:96px}
.err{display:none;color:var(--brand-600);font-size:13px;margin-top:6px}
.field.has-err input,.field.has-err select{border-color:var(--brand-500)}
.field.has-err .err{display:block}
.form-note{font-size:13px;color:var(--ink-500);line-height:1.7;margin:14px 0 0}
.form-success{display:none;margin-top:14px;padding:12px 14px;border-radius:10px;background:rgba(122,92,255,.1);color:#4A31B8;font-size:14px;font-weight:600}
.form-success.show{display:block}
.trust{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--r-card);padding:30px 28px}
.trust h3{font-size:19px;margin-bottom:18px}
.trust ul{display:grid;gap:16px}
.trust li{display:grid;grid-template-columns:auto 1fr;gap:12px;font-size:14px;color:var(--ink-500);line-height:1.8}
.trust li b{display:block;color:var(--ink-900);font-size:15px;margin-bottom:2px}
.trust li .dot{width:22px;height:22px;border-radius:50%;background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--brand-600);font-weight:800;flex:none;margin-top:3px}
.trust .hours{margin-top:20px;padding-top:18px;border-top:1px dashed var(--line);font-size:13px;color:var(--ink-500);line-height:1.8}

/* ===== Footer ===== */
.site-footer{background:var(--bg-dark);color:rgba(255,255,255,.72);padding:58px 0 0;position:relative}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,rgba(255,46,110,.8),rgba(122,92,255,.6),transparent)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.foot-brand .logo{margin-bottom:14px}
.foot-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);margin:0 0 12px}
.safe-note{display:inline-block;font-size:12px;line-height:1.7;color:#FFC7D8;background:rgba(255,46,110,.1);border:1px solid rgba(255,46,110,.3);border-radius:8px;padding:8px 12px}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700;letter-spacing:.5px}
.foot-col ul{display:grid;gap:10px}
.foot-col a{color:rgba(255,255,255,.66);font-size:14px;text-decoration:none}
.foot-col a:hover{color:#fff;text-decoration:none;border-bottom:1px solid var(--brand-500)}
.foot-col li span{font-size:14px;color:rgba(255,255,255,.66);line-height:1.8;display:block}
.foot-bottom{border-top:1px solid rgba(255,255,255,.09);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5)}
.foot-bottom a{color:rgba(255,255,255,.55);text-decoration:none}
.foot-bottom a:hover{color:#fff}

/* ===== Responsive ===== */
@media (max-width:1100px){
  .nav-menu{display:none}
  .nav-actions .btn-ghost{display:none}
  .nav-toggle{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:34px}
  .stats-grid{grid-template-columns:1fr 1fr}
  .matrix{grid-template-columns:1fr}
  .guarantee-grid{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
  .download-grid{grid-template-columns:1fr;gap:32px}
  .qr-box{max-width:240px}
  .lead-wrap{grid-template-columns:1fr}
}
@media (max-width:900px){
  .section{padding:64px 0}
  h1{font-size:30px}
  h2{font-size:25px}
  .hero{padding:60px 0 56px}
  .hero h1{font-size:28px}
  .compare{grid-template-columns:1fr}
  .compare-new{border-left:0;border-top:2px solid rgba(255,46,110,.5)}
  .timeline::before{left:9px;transform:none}
  .tl-item{grid-template-columns:1fr;gap:14px;padding-left:34px}
  .tl-item::after{left:9px;top:22px;transform:translate(-50%,0)}
  .tl-item:nth-child(even) .tl-text{order:0}
  .city-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .voices{grid-template-columns:1fr}
  .qa-grid{grid-template-columns:1fr}
  .news-item,.news-item:first-child{grid-template-columns:1fr;gap:14px}
  .news-item:first-child .news-body h3{font-size:19px}
  .news-thumb{aspect-ratio:16/9}
}
@media (max-width:600px){
  .container{padding:0 20px}
  .hero h1{font-size:25px}
  .hero-lead{font-size:15px}
  .hero-photo{height:240px}
  .fc-1{left:0;bottom:12px;padding:10px 12px}
  .fc-2{right:0;top:-12px;padding:10px 12px}
  .float-card strong{font-size:18px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:14px}
  .stat-num{font-size:30px}
  .guarantee-grid{grid-template-columns:1fr}
  .city-sm,.matrix-sm{grid-template-columns:1fr}
  .form-card,.trust{padding:24px 20px}
  .form-row{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .download h2{font-size:23px}
  .hero-cta .btn{width:100%}
}

/* roulang page: article */
:root{
  --ink-900:#14101A;
  --ink-700:#2A2333;
  --ink-500:#5B5466;
  --line:#E6E1EC;
  --bg:#FFFFFF;
  --bg-soft:#F6F4F9;
  --bg-dark:#100C16;
  --brand-500:#FF2E6E;
  --brand-600:#D9164F;
  --accent-500:#7A5CFF;
  --accent-400:#FFB020;
  --r-card:14px;
  --r-btn:10px;
  --shadow-card:0 8px 24px rgba(20,16,26,.08);
  --shadow-hover:0 14px 32px rgba(20,16,26,.14);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--accent-500);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-500)}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:15px}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:3px;border-radius:6px}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:.2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
/* ===== Header / Nav ===== */
.site-header{position:sticky;top:0;z-index:80;background:var(--bg-dark)}
.site-header::after{content:"";display:block;height:1px;background:linear-gradient(90deg,rgba(255,46,110,.85),rgba(122,92,255,.85),rgba(255,46,110,.2))}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:19px;letter-spacing:.5px;text-decoration:none}
.logo:hover{color:#fff;text-decoration:none}
.logo i{width:9px;height:9px;border-radius:50%;background:var(--brand-500);box-shadow:0 0 12px rgba(255,46,110,.9);display:inline-block;flex:none}
.logo em{font-style:normal;color:#fff;opacity:.72;font-weight:600}
.nav-menu{display:flex;align-items:center;gap:6px;margin:0;padding:0;list-style:none}
.nav-menu a{display:inline-block;padding:8px 14px;border-radius:999px;color:rgba(255,255,255,.76);font-size:15px;font-weight:500;text-decoration:none;transition:color .2s ease,background .2s ease,box-shadow .2s ease}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.07);text-decoration:none}
.nav-menu a.is-active{color:#fff;background:rgba(255,46,110,.14);box-shadow:0 0 0 1px rgba(255,46,110,.5) inset,0 0 16px rgba(255,46,110,.28)}
.nav-actions{display:flex;align-items:center;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:700;line-height:1.2;text-decoration:none;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;white-space:nowrap}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--brand-500);color:#fff;box-shadow:0 0 0 1px rgba(255,46,110,.4),0 6px 20px rgba(255,46,110,.35)}
.btn-primary:hover{background:var(--brand-600);color:#fff;box-shadow:0 0 0 1px rgba(255,46,110,.6),0 10px 26px rgba(255,46,110,.5)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(122,92,255,.7)}
.btn-ghost:hover{color:#fff;border-color:var(--accent-500);background:rgba(122,92,255,.16);box-shadow:0 0 18px rgba(122,92,255,.35)}
.btn-outline-dark{background:transparent;color:var(--ink-900);border-color:var(--line)}
.btn-outline-dark:hover{border-color:var(--brand-500);color:var(--brand-600);box-shadow:var(--shadow-card)}
.btn-light{background:#fff;color:var(--ink-900);border-color:rgba(255,255,255,.6)}
.btn-light:hover{background:rgba(255,255,255,.9);color:var(--ink-900)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.05);color:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:20px;height:2px;background:#fff;border-radius:2px}
.drawer-mask{position:fixed;inset:0;background:rgba(16,12,22,.62);backdrop-filter:blur(2px);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:90}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;width:min(320px,86vw);height:100%;background:var(--bg-dark);z-index:95;transform:translateX(102%);transition:transform .28s ease;padding:26px 22px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;border-left:1px solid rgba(255,46,110,.35)}
.drawer.is-open{transform:translateX(0)}
.drawer-title{color:rgba(255,255,255,.55);font-size:13px;letter-spacing:2px;margin-bottom:10px}
.drawer a{display:block;padding:14px 12px;border-radius:10px;color:rgba(255,255,255,.86);font-size:16px;font-weight:600;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.07)}
.drawer a:hover{background:rgba(255,46,110,.14);color:#fff;text-decoration:none}
.drawer .btn{margin-top:18px;justify-content:center}
/* ===== 面包屑 ===== */
.crumb-bar{background:var(--bg-soft);border-bottom:1px solid var(--line);padding:16px 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-500)}
.breadcrumb a{color:var(--ink-500);font-weight:600}
.breadcrumb a:hover{color:var(--brand-500);text-decoration:none}
.breadcrumb .sep{color:#C9C2D6}
.badge-cat{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;background:rgba(255,46,110,.1);border:1px solid rgba(255,46,110,.3);color:var(--brand-600);font-size:13px;font-weight:700}
/* ===== 文章布局 ===== */
.article-section{padding:56px 0 88px;background:var(--bg)}
.layout-article{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}
.article-head .article-kicker{display:inline-flex;align-items:center;gap:8px;margin:0;font-size:13px;font-weight:700;letter-spacing:.4px;color:var(--brand-600);background:rgba(255,46,110,.08);border:1px solid rgba(255,46,110,.24);border-radius:999px;padding:5px 14px}
.article-head h1{font-size:38px;line-height:1.34;margin:18px 0 0;letter-spacing:.4px}
.article-lead{margin:20px 0 0;color:var(--ink-500);font-size:16px;line-height:1.9;display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:24px;padding-top:20px;border-top:1px solid var(--line);font-size:14px;color:var(--ink-500)}
.article-meta b{color:var(--ink-700);font-weight:700}
.article-body{max-width:760px;margin-top:34px;font-size:16px;line-height:1.85;color:var(--ink-700)}
.article-body h2{font-size:26px;line-height:1.45;margin:44px 0 18px;padding-left:14px;border-left:4px solid var(--brand-500);color:var(--ink-900)}
.article-body h3{font-size:20px;line-height:1.5;margin:32px 0 14px;color:var(--ink-900)}
.article-body h4{font-size:17px;margin:24px 0 12px;color:var(--ink-900)}
.article-body p{margin:0 0 18px}
.article-body a{color:var(--accent-500);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--brand-500)}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 20px}
.article-body li{margin-bottom:8px}
.article-body blockquote{margin:26px 0;padding:16px 22px;background:var(--bg-soft);border-left:3px solid var(--brand-500);border-radius:0 10px 10px 0;color:var(--ink-700)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body figure{margin:26px 0}
.article-body figure img{border-radius:var(--r-card);box-shadow:var(--shadow-card)}
.article-body figcaption{margin-top:10px;font-size:13px;line-height:1.7;color:var(--ink-500);text-align:center}
.article-body img{border-radius:var(--r-card);margin:24px 0}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;border-radius:10px;overflow:hidden}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:var(--bg-soft);color:var(--ink-900)}
.article-body code{background:var(--bg-soft);padding:2px 6px;border-radius:6px;font-size:14px}
.article-body pre{background:var(--bg-dark);color:#EAE6F2;padding:18px;border-radius:12px;overflow-x:auto;font-size:14px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0}
.empty-state{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--r-card);padding:40px 28px;text-align:center;box-shadow:var(--shadow-card)}
.empty-state h2{font-size:22px;margin:0 0 12px;border:0;padding:0;color:var(--ink-900)}
.empty-state p{margin:0 0 22px;color:var(--ink-500);font-size:15px}
/* ===== 目录要点卡 ===== */
.toc-card{position:sticky;top:96px;background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--r-card);padding:22px 20px;box-shadow:var(--shadow-card)}
.toc-card h2{font-size:16px;margin:0 0 14px;display:flex;align-items:center;gap:9px;color:var(--ink-900)}
.toc-card h2::before{content:"";width:6px;height:18px;border-radius:3px;background:var(--brand-500);flex:none}
.toc-list{list-style:none;margin:0;padding:0;counter-reset:toc}
.toc-list li{counter-increment:toc;position:relative;padding:9px 0 9px 28px;font-size:14px;line-height:1.65;color:var(--ink-700);border-bottom:1px dashed var(--line)}
.toc-list li:last-child{border-bottom:0}
.toc-list li::before{content:counter(toc,decimal-leading-zero);position:absolute;left:0;top:9px;font-size:12px;font-weight:800;color:var(--brand-500);font-variant-numeric:tabular-nums}
.toc-note{margin:16px 0 0;padding-top:14px;border-top:1px solid var(--line);font-size:13px;line-height:1.7;color:var(--ink-500)}
.toc-card .btn{width:100%;margin-top:16px}
/* ===== 标签 ===== */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:44px;padding-top:24px;border-top:1px solid var(--line)}
.tag-row h2{font-size:15px;font-weight:700;margin:0 10px 0 0;color:var(--ink-500);border:0;padding:0}
.tag{display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;background:var(--bg-soft);border:1px solid var(--line);font-size:13px;color:var(--ink-700);transition:border-color .2s ease,color .2s ease,background .2s ease}
.tag:hover{border-color:rgba(255,46,110,.45);color:var(--brand-600);background:rgba(255,46,110,.06)}
/* ===== 相关推荐 ===== */
.rel-section{background:var(--bg-soft);border-top:1px solid var(--line);padding:64px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.sec-head h2{font-size:28px;line-height:1.4;color:var(--ink-900)}
.sec-head p{margin:8px 0 0;font-size:14px;color:var(--ink-500)}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rel-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;color:inherit;text-decoration:none}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(255,46,110,.35);color:inherit;text-decoration:none}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.06)}
.rel-body{padding:18px 18px 20px}
.rel-body .tag{margin-bottom:10px}
.rel-body h3{font-size:16px;line-height:1.6;margin:0 0 10px;color:var(--ink-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-body time{font-size:13px;color:var(--ink-500)}
/* ===== 上一篇 / 下一篇 ===== */
.pn-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:48px}
.pn-card{display:block;padding:20px 22px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;color:inherit;text-decoration:none}
.pn-card:hover{transform:translateY(-2px);border-color:rgba(255,46,110,.4);box-shadow:var(--shadow-card);color:inherit;text-decoration:none}
.pn-card .pn-label{display:block;font-size:13px;font-weight:700;color:var(--brand-600);letter-spacing:.5px}
.pn-card strong{display:block;margin-top:10px;font-size:15px;line-height:1.65;color:var(--ink-900);font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pn-card.is-next{text-align:right}
.pn-card.is-muted{opacity:.66;pointer-events:none;background:var(--bg-soft)}
.pn-card.is-muted strong{color:var(--ink-500)}
.back-row{margin-top:30px;display:flex;justify-content:flex-start}
.back-link{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink-700);font-size:14px;font-weight:700;text-decoration:none;transition:border-color .2s ease,color .2s ease,box-shadow .2s ease}
.back-link:hover{border-color:var(--brand-500);color:var(--brand-600);box-shadow:var(--shadow-card);text-decoration:none}
/* ===== 下载 CTA 深色条 ===== */
.cta-band{position:relative;background:var(--bg-dark);color:#fff;padding:64px 0;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:
  radial-gradient(54% 66% at 12% 12%,rgba(255,46,110,.26),transparent 62%),
  radial-gradient(50% 60% at 84% 20%,rgba(122,92,255,.28),transparent 66%),
  radial-gradient(46% 52% at 62% 100%,rgba(255,176,32,.14),transparent 68%);
  pointer-events:none}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.32fr .68fr;gap:44px;align-items:center}
.cta-band h2{font-size:28px;line-height:1.42;color:#fff}
.cta-band h2 mark{background:none;color:#fff;box-shadow:inset 0 -9px 0 rgba(255,46,110,.4);padding:0 2px}
.cta-band p{margin:16px 0 24px;color:rgba(255,255,255,.76);font-size:15px;line-height:1.85;max-width:620px}
.cta-btns{display:flex;flex-wrap:wrap;gap:14px}
.qr-box{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-card);padding:20px;text-align:center}
.qr-box img{width:100%;max-width:170px;margin:0 auto;border-radius:12px;object-fit:cover}
.qr-box span{display:block;margin-top:14px;font-size:13px;color:rgba(255,255,255,.7)}
/* ===== Footer ===== */
.site-footer{background:var(--bg-dark);color:rgba(255,255,255,.72);padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.foot-brand p{margin:16px 0 14px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62)}
.safe-note{display:inline-block;padding:8px 14px;border-radius:10px;background:rgba(255,46,110,.1);border:1px solid rgba(255,46,110,.28);font-size:13px;line-height:1.7;color:#FFC9DA}
.foot-col h4{color:#fff;font-size:16px;margin:0 0 16px}
.foot-col ul{list-style:none;margin:0;padding:0}
.foot-col li{margin-bottom:11px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.62)}
.foot-col a{color:rgba(255,255,255,.72);text-decoration:none}
.foot-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.48)}
/* ===== 响应式 ===== */
@media (max-width:1023px){
  .nav-menu{display:none}
  .nav-toggle{display:flex}
  .nav-actions .btn-ghost{display:none}
  .layout-article{grid-template-columns:1fr;gap:30px}
  .toc-card{position:static;order:-1}
  .article-head h1{font-size:30px}
  .rel-grid{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .article-section{padding:44px 0 68px}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .nav-wrap{height:64px;gap:12px}
  .logo{font-size:16px}
  .logo em{display:none}
  .nav-actions .btn-primary{padding:10px 16px;font-size:14px}
  .article-head h1{font-size:25px;line-height:1.4}
  .article-lead{font-size:15px}
  .article-body{font-size:15.5px;margin-top:26px}
  .article-body h2{font-size:21px;margin:34px 0 14px}
  .article-body h3{font-size:18px}
  .rel-grid{grid-template-columns:1fr}
  .pn-grid{grid-template-columns:1fr}
  .pn-card.is-next{text-align:left}
  .foot-grid{grid-template-columns:1fr}
  .sec-head h2{font-size:22px}
  .cta-band{padding:48px 0}
  .cta-band h2{font-size:22px}
  .cta-band .btn{width:100%}
  .foot-bottom{flex-direction:column;gap:8px}
  .rel-section{padding:48px 0}
}

/* roulang page: category1 */
:root{
  --ink-900:#14101A;
  --ink-700:#2A2333;
  --ink-500:#5B5466;
  --line:#E6E1EC;
  --bg:#FFFFFF;
  --bg-soft:#F6F4F9;
  --bg-dark:#100C16;
  --brand-500:#FF2E6E;
  --brand-600:#D9164F;
  --accent-500:#7A5CFF;
  --accent-400:#FFB020;
  --r-card:14px;
  --r-btn:10px;
  --shadow-card:0 8px 24px rgba(20,16,26,.08);
  --shadow-hover:0 14px 32px rgba(20,16,26,.14);
  --container:1200px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--accent-500);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:15px}
h1,h2,h3,h4{margin:0;line-height:1.35;color:var(--ink-900);letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}
.muted-line{color:var(--ink-500);font-size:15px;line-height:1.9}

/* ===== Header / Nav ===== */
.site-header{position:sticky;top:0;z-index:80;background:var(--bg-dark)}
.site-header::after{content:"";display:block;height:1px;background:linear-gradient(90deg,rgba(255,46,110,.85),rgba(122,92,255,.85),rgba(255,46,110,.2))}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:19px;letter-spacing:.5px;text-decoration:none}
.logo:hover{color:#fff;text-decoration:none}
.logo i{width:9px;height:9px;border-radius:50%;background:var(--brand-500);box-shadow:0 0 12px rgba(255,46,110,.9);display:inline-block;flex:none}
.logo em{font-style:normal;color:#fff;opacity:.72;font-weight:600}
.nav-menu{display:flex;align-items:center;gap:6px;margin:0;padding:0;list-style:none}
.nav-menu a{display:inline-block;padding:8px 14px;border-radius:999px;color:rgba(255,255,255,.76);font-size:15px;font-weight:500;text-decoration:none;transition:color .2s ease,background .2s ease,box-shadow .2s ease}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.07);text-decoration:none}
.nav-menu a.is-active{color:#fff;background:rgba(255,46,110,.14);box-shadow:0 0 0 1px rgba(255,46,110,.5) inset,0 0 16px rgba(255,46,110,.28)}
.nav-actions{display:flex;align-items:center;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:700;line-height:1.2;text-decoration:none;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;white-space:nowrap}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--brand-500);color:#fff;box-shadow:0 0 0 1px rgba(255,46,110,.4),0 6px 20px rgba(255,46,110,.35)}
.btn-primary:hover{background:var(--brand-600);color:#fff;box-shadow:0 0 0 1px rgba(255,46,110,.6),0 10px 26px rgba(255,46,110,.5)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(122,92,255,.7)}
.btn-ghost:hover{color:#fff;border-color:var(--accent-500);background:rgba(122,92,255,.16);box-shadow:0 0 18px rgba(122,92,255,.35)}
.btn-outline-dark{background:transparent;color:var(--ink-900);border-color:var(--line)}
.btn-outline-dark:hover{border-color:var(--brand-500);color:var(--brand-600);box-shadow:var(--shadow-card)}
.btn-light{background:#fff;color:var(--ink-900);border-color:rgba(255,255,255,.6)}
.btn-light:hover{background:rgba(255,255,255,.9);color:var(--ink-900)}
.btn-block{width:100%}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.05);color:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:20px;height:2px;background:#fff;border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.drawer-mask{position:fixed;inset:0;background:rgba(16,12,22,.62);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:90}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;width:min(320px,86vw);height:100%;background:var(--bg-dark);z-index:95;transform:translateX(102%);transition:transform .28s ease;padding:26px 22px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;border-left:1px solid rgba(255,46,110,.35)}
.drawer.is-open{transform:translateX(0)}
.drawer-title{color:rgba(255,255,255,.55);font-size:13px;letter-spacing:2px;margin-bottom:10px}
.drawer a.drawer-link{display:block;padding:14px 12px;border-radius:10px;color:rgba(255,255,255,.86);font-size:16px;font-weight:600;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.07)}
.drawer a.drawer-link:hover{background:rgba(255,46,110,.14);color:#fff;text-decoration:none}
.drawer .btn{margin-top:18px;justify-content:center}

/* ===== Category hero ===== */
.cat-hero{position:relative;background:var(--bg-soft);padding:56px 0 52px;border-bottom:1px solid var(--line)}
.cat-hero .container{position:relative;padding-left:44px}
.cat-hero .container::before{content:"";position:absolute;left:24px;top:6px;bottom:6px;width:5px;border-radius:3px;background:linear-gradient(180deg,var(--brand-500),var(--accent-500));box-shadow:0 0 14px rgba(255,46,110,.45)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);margin-bottom:18px}
.crumb a{color:var(--ink-500)}
.crumb a:hover{color:var(--brand-500)}
.crumb span.sep{color:#BDB6C7}
.crumb .current{color:var(--brand-600);font-weight:600}
.cat-hero h1{font-size:38px;line-height:1.32;max-width:880px}
.cat-hero h1 mark{background:none;color:inherit;box-shadow:inset 0 -9px 0 rgba(255,46,110,.22);padding:0 2px}
.cat-hero .lead{margin-top:20px;max-width:820px;color:var(--ink-500);font-size:16px;line-height:1.95}
.cat-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink-700);font-size:13px;font-weight:600}
.chip.is-accent{background:rgba(255,46,110,.08);border-color:rgba(255,46,110,.35);color:var(--brand-600)}

/* ===== Section base ===== */
.section{padding:64px 0}
.section-dark{background:var(--bg-dark);color:rgba(255,255,255,.8)}
.section-soft{background:var(--bg-soft)}
.section-head{max-width:760px;margin-bottom:32px}
.section-head .kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:1.6px;color:var(--brand-600);text-transform:uppercase}
.section-head .kicker::before{content:"";width:22px;height:2px;background:var(--brand-500);display:inline-block;border-radius:2px}
.section-head h2{font-size:30px;margin-top:12px}
.section-head p{margin-top:14px;color:var(--ink-500);font-size:15px;line-height:1.9}
.section-dark .section-head h2{color:#fff}
.section-dark .section-head p{color:rgba(255,255,255,.68)}

/* ===== Stat bar ===== */
.stat-bar{display:grid;grid-template-columns:.9fr .9fr 1.6fr;gap:20px;margin-top:-34px;position:relative;z-index:2}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--shadow-card);position:relative;overflow:hidden}
.stat-card::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:linear-gradient(90deg,var(--brand-500),var(--accent-500))}
.stat-card .label{font-size:13px;color:var(--ink-500);font-weight:600;letter-spacing:.6px}
.stat-card .value{font-size:36px;font-weight:800;color:var(--accent-400);line-height:1.2;margin-top:6px;font-variant-numeric:tabular-nums}
.stat-card .value small{font-size:14px;color:var(--ink-500);font-weight:600;margin-left:6px}
.stat-card .desc{font-size:13px;color:var(--ink-500);margin-top:6px}
.stat-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.stat-tags span{padding:5px 12px;border-radius:999px;background:var(--bg-soft);border:1px solid var(--line);font-size:13px;color:var(--ink-700)}

/* ===== Post list ===== */
.post-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.post-card{display:flex;gap:18px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:18px;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(255,46,110,.35)}
.post-card .thumb{flex:none;width:132px;height:100px;border-radius:10px;overflow:hidden;background:var(--bg-soft)}
.post-card .thumb img{width:100%;height:100%;object-fit:cover}
.post-card .body{min-width:0;display:flex;flex-direction:column;gap:8px}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12.5px;color:var(--ink-500)}
.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:700;background:rgba(122,92,255,.1);color:#5B45C9;border:1px solid rgba(122,92,255,.22)}
.post-card h3{font-size:17px;line-height:1.5}
.post-card h3 a{color:var(--ink-900)}
.post-card h3 a:hover{color:var(--brand-600);text-decoration:none}
.post-card .excerpt{font-size:14px;color:var(--ink-500);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card.is-featured{grid-column:span 2;align-items:center}
.post-card.is-featured .thumb{width:280px;height:170px}
.post-card.is-featured h3{font-size:21px}
.post-card.is-featured .excerpt{-webkit-line-clamp:3;font-size:15px}
.more-row{display:flex;justify-content:center;margin-top:34px}
.empty-box{background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);padding:52px 24px;text-align:center;color:var(--ink-500);font-size:15px}
.empty-box .icon{display:inline-flex;width:52px;height:52px;border-radius:50%;background:var(--bg-soft);align-items:center;justify-content:center;color:var(--accent-500);font-size:22px;margin-bottom:14px}

/* ===== Guide steps ===== */
.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.guide-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px 24px;box-shadow:var(--shadow-card);position:relative;transition:transform .2s ease,box-shadow .2s ease}
.guide-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.guide-card .idx{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;background:rgba(255,46,110,.1);color:var(--brand-600);font-weight:800;font-size:17px;font-variant-numeric:tabular-nums;margin-bottom:16px}
.guide-card h3{font-size:18px}
.guide-card p{font-size:14.5px;color:var(--ink-500);line-height:1.85;margin-top:10px}
.guide-card ul{margin-top:14px;display:grid;gap:8px}
.guide-card li{font-size:14px;color:var(--ink-700);padding-left:20px;position:relative;line-height:1.75}
.guide-card li::before{content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:50%;background:var(--accent-500)}

/* ===== Picks ===== */
.pick-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.pick-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease}
.pick-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.pick-card .cover{aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft)}
.pick-card .cover img{width:100%;height:100%;object-fit:cover}
.pick-card .inner{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px}
.pick-card h3{font-size:16px;line-height:1.5}
.pick-card h3 a{color:var(--ink-900)}
.pick-card h3 a:hover{color:var(--brand-600);text-decoration:none}
.pick-card .meta{font-size:12.5px;color:var(--ink-500)}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card);overflow:hidden}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;font-size:16px;font-weight:700;color:var(--ink-900);cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:none;width:26px;height:26px;border-radius:50%;background:var(--bg-soft);color:var(--brand-600);display:inline-flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;transition:transform .25s ease,background .25s ease}
.faq-item[open] summary{color:var(--brand-600)}
.faq-item[open] summary::after{content:"−";background:rgba(255,46,110,.12);transform:rotate(180deg)}
.faq-item .answer{padding:0 22px 20px;font-size:15px;color:var(--ink-500);line-height:1.9;background:var(--bg-soft)}

/* ===== Download bar ===== */
.download-bar{background:var(--bg-dark);color:#fff;padding:56px 0;position:relative;overflow:hidden}
.download-bar::before{content:"";position:absolute;inset:0;background:
  radial-gradient(56% 70% at 12% 20%,rgba(255,46,110,.24),transparent 62%),
  radial-gradient(50% 62% at 88% 82%,rgba(122,92,255,.28),transparent 66%);
  pointer-events:none}
.download-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.3fr .7fr;gap:36px;align-items:center}
.download-inner h2{color:#fff;font-size:28px}
.download-inner p{margin-top:14px;color:rgba(255,255,255,.72);font-size:15px;line-height:1.9;max-width:620px}
.download-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.qr-box{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-card);padding:22px;text-align:center}
.qr-box .qr{width:120px;height:120px;margin:0 auto;border-radius:10px;background:
  repeating-linear-gradient(45deg,rgba(255,255,255,.85) 0 6px,rgba(255,255,255,.35) 6px 12px);
  border:6px solid #fff;}
.qr-box span{display:block;margin-top:14px;font-size:13px;color:rgba(255,255,255,.66)}

/* ===== Entry grid ===== */
.entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.entry-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(255,46,110,.4);text-decoration:none}
.entry-card .ico{width:44px;height:44px;border-radius:12px;background:rgba(122,92,255,.1);color:var(--accent-500);display:inline-flex;align-items:center;justify-content:center;font-size:19px;font-weight:800;margin-bottom:16px}
.entry-card h3{font-size:17px;color:var(--ink-900)}
.entry-card p{font-size:14px;color:var(--ink-500);line-height:1.8;margin-top:10px}
.entry-card .go{display:inline-block;margin-top:16px;font-size:14px;font-weight:700;color:var(--brand-600)}

/* ===== Footer ===== */
.site-footer{background:var(--bg-dark);color:rgba(255,255,255,.72);padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1.3fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.1)}
.foot-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);margin:16px 0 14px}
.safe-note{display:inline-block;font-size:13px;line-height:1.6;color:var(--accent-400);background:rgba(255,176,32,.1);border:1px solid rgba(255,176,32,.3);border-radius:999px;padding:6px 14px}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.foot-col ul{display:grid;gap:10px}
.foot-col li{font-size:14px;line-height:1.7;color:rgba(255,255,255,.6)}
.foot-col a{color:rgba(255,255,255,.66)}
.foot-col a:hover{color:var(--brand-500)}
.foot-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;padding:22px 0;font-size:13px;color:rgba(255,255,255,.45)}
.foot-bottom a{color:rgba(255,255,255,.55)}

/* ===== Responsive ===== */
@media (max-width:1023px){
  .nav-menu,.nav-actions{display:none}
  .nav-toggle{display:inline-flex}
  .cat-hero h1{font-size:31px}
  .stat-bar{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:-28px}
  .stat-card.tags-card{grid-column:span 2}
  .post-grid{grid-template-columns:1fr}
  .post-card.is-featured{grid-column:span 1}
  .post-card.is-featured .thumb{width:200px;height:140px}
  .guide-grid,.pick-row,.entry-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .download-inner{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:56px 0}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .cat-hero{padding:42px 0 40px}
  .cat-hero .container{padding-left:36px}
  .cat-hero .container::before{left:20px}
  .cat-hero h1{font-size:26px;line-height:1.4}
  .cat-hero .lead{font-size:15px}
  .section-head h2{font-size:23px}
  .post-card{flex-direction:column}
  .post-card .thumb,.post-card.is-featured .thumb{width:100%;height:170px}
  .post-card.is-featured h3{font-size:19px}
  .guide-grid,.pick-row,.entry-grid{grid-template-columns:1fr}
  .download-inner h2{font-size:23px}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column}
  .stat-card .value{font-size:30px}
}
@media (max-width:519px){
  .container{padding:0 16px}
  .stat-bar{grid-template-columns:1fr}
  .stat-card.tags-card{grid-column:span 1}
  .cat-hero .container{padding-left:30px}
  .cat-hero .container::before{left:14px;width:4px}
  .btn{padding:11px 18px;font-size:14px}
  .download-cta{flex-direction:column;align-items:stretch}
}