/* roulang page: index */
/* ================= 设计变量 ================= */
:root{
  --primary:#2F6BE0;
  --primary-hover:#2557C0;
  --blue-900:#12305E;
  --blue-50:#EEF4FF;
  --page:#FFFFFF;
  --surface:#F7F9FC;
  --sand:#FAF4EA;
  --sand-line:#EADFCB;
  --ink:#16202E;
  --muted:#5D6B80;
  --line:#E5ECF6;
  --accent:#12A594;
  --warn:#E4813C;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(18,48,94,.05), 0 14px 34px -18px rgba(18,48,94,.22);
  --shadow-md:0 1px 2px rgba(18,48,94,.06), 0 22px 44px -16px rgba(18,48,94,.26);
  --font-serif:'Noto Serif SC','Songti SC','SimSun',serif;
  --font-sans:'Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
}
/* ================= 基础重置 ================= */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--primary-hover);}
button{font-family:inherit;font-size:inherit;}
:focus-visible{outline:3px solid rgba(47,107,224,.35);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(47,107,224,.16);}

/* ================= 容器与板块 ================= */
.grid-container{width:100%;max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px;}
.section{padding:88px 0;}
.section--surface{background:var(--surface);}
.section--sand{background:var(--sand);}
.section-head{max-width:780px;margin-bottom:46px;}
.eyebrow{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.1em;color:var(--primary);background:rgba(47,107,224,.08);padding:5px 12px;border-radius:999px;margin-bottom:14px;}
.eyebrow--sand{color:#9A6A22;background:rgba(228,129,60,.12);}
h1{
  font-family:var(--font-serif);
  font-size:clamp(30px,4.2vw,52px);
  line-height:1.22;
  letter-spacing:-.01em;
  font-weight:700;
  color:var(--blue-900);
}
h2{
  font-family:var(--font-serif);
  font-size:clamp(23px,2.6vw,34px);
  line-height:1.3;
  letter-spacing:-.01em;
  font-weight:700;
  color:var(--blue-900);
}
h3{font-size:20px;line-height:1.45;font-weight:700;color:var(--blue-900);}
.section-desc{margin-top:14px;font-size:16px;line-height:1.85;color:var(--muted);max-width:720px;}
.num-serif{font-family:var(--font-serif);font-variant-numeric:tabular-nums;}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1.2;
  padding:13px 22px;border-radius:var(--radius-sm);
  border:1px solid transparent;cursor:pointer;
  transition:background .26s ease,color .26s ease,border-color .26s ease,transform .26s ease,box-shadow .26s ease;
  min-height:44px;text-align:center;
}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);}
.btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px -12px rgba(47,107,224,.6);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-ghost{background:#fff;color:var(--primary);border-color:#CBD9EE;}
.btn-ghost:hover{background:var(--blue-50);border-color:var(--primary);color:var(--primary-hover);transform:translateY(-1px);}
.btn-ghost:active{transform:none;}
.btn-block{width:100%;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);border-bottom:1px solid rgba(47,107,224,.35);padding-bottom:2px;transition:color .22s ease,border-color .22s ease;}
.text-link:hover{color:var(--primary-hover);border-color:var(--primary-hover);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);}

/* ================= 顶部导航 ================= */
.site-header{position:sticky;top:0;z-index:90;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .28s ease;}
.site-header.is-scrolled{box-shadow:0 8px 26px -20px rgba(18,48,94,.55);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:12px;color:inherit;}
.brand:hover{color:inherit;}
.brand-mark{width:28px;height:28px;border-radius:8px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--font-serif);font-size:15px;font-weight:700;flex:0 0 28px;}
.brand-text{display:flex;flex-direction:column;justify-content:center;}
.brand-name{display:block;font-size:19px;font-weight:700;color:var(--blue-900);line-height:1.25;letter-spacing:-.01em;}
.brand-sub{display:block;font-size:11px;font-weight:400;letter-spacing:.08em;color:var(--muted);line-height:1.4;}
.header-cta{flex:0 0 auto;}
.header-cta .cta-short{display:none;}

/* ================= Hero ================= */
.hero{background:#fff;padding:60px 0 72px;}
.hero-main{display:flex;flex-direction:column;justify-content:center;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;align-self:flex-start;padding:6px 14px;border-radius:999px;background:var(--blue-50);border:1px solid #D8E5FB;color:var(--primary);font-size:13px;font-weight:600;letter-spacing:.02em;}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);}
.hero h1{margin:20px 0 20px;}
.hero-lead{font-size:16.5px;line-height:1.9;color:var(--muted);max-width:660px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-trust{font-size:13px;line-height:1.7;color:var(--muted);margin-top:18px;}
.hero-side{display:grid;gap:16px;}
.hero-tile{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden;}
.hero-tile--photo{position:relative;}
.hero-tile--photo img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-tile-tag{position:absolute;left:14px;bottom:14px;background:rgba(255,255,255,.94);color:var(--blue-900);font-size:12px;font-weight:600;padding:6px 12px;border-radius:999px;border:1px solid var(--line);}
.hero-tile--stat{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:20px;}
.mini-stat{display:flex;flex-direction:column;gap:2px;}
.mini-num{font-family:var(--font-serif);font-size:28px;line-height:1.1;font-weight:700;color:var(--blue-900);font-variant-numeric:tabular-nums;}
.mini-num em{font-style:normal;font-size:13px;font-family:var(--font-sans);font-weight:600;color:var(--muted);margin-left:2px;}
.mini-label{font-size:12.5px;color:var(--muted);}
.mini-note{grid-column:1 / -1;font-size:11.5px;color:var(--muted);border-top:1px dashed var(--line);padding-top:10px;margin-top:2px;}
.hero-strip{margin-top:26px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;background:var(--blue-50);border:1px solid #D8E5FB;border-radius:var(--radius-lg);padding:18px 24px;}
.strip-item{display:flex;flex-direction:column;gap:2px;min-width:110px;}
.strip-item strong{font-family:var(--font-serif);font-size:22px;line-height:1.2;color:var(--blue-900);font-variant-numeric:tabular-nums;}
.strip-item span{font-size:12.5px;color:var(--muted);}
.strip-link{font-size:14px;font-weight:600;color:var(--primary);white-space:nowrap;}
.strip-link:hover{color:var(--primary-hover);}

/* ================= 卡片与媒体 ================= */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#D3E0F5;}
.media{overflow:hidden;border-radius:14px;background:var(--blue-50);}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .28s ease;}
.card:hover .media img,.scene-card:hover .media img{transform:scale(1.03);}
.media--16x9{aspect-ratio:16/9;}
.media--4x3{aspect-ratio:4/3;}
.media--1x1{aspect-ratio:1/1;}
.media--21x9{aspect-ratio:21/9;}
.badge{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--primary);background:var(--blue-50);border:1px solid #D8E5FB;border-radius:999px;padding:3px 10px;}
.badge--sand{color:#9A6A22;background:#FBF1E1;border-color:var(--sand-line);}
.badge--green{color:#0A7F71;background:#E6F6F3;border-color:#CDEDE7;}

/* ================= 指标看板 ================= */
.metric-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:26px 22px;height:100%;position:relative;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;}
.metric-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#D3E0F5;}
.metric-card--lead{border-color:var(--primary);padding:32px 28px;}
.metric-card--lead::after{content:"";position:absolute;top:0;right:0;width:64px;height:3px;background:var(--primary);border-radius:0 var(--radius-lg) 0 0;}
.metric-tag{display:inline-block;font-size:12px;font-weight:600;color:var(--primary);background:var(--blue-50);border-radius:999px;padding:3px 10px;margin-bottom:14px;}
.metric-figure{font-family:var(--font-serif);font-size:clamp(36px,4vw,54px);line-height:1.1;font-weight:700;color:var(--blue-900);font-variant-numeric:tabular-nums;}
.metric-figure.sm{font-size:clamp(28px,2.6vw,36px);}
.metric-figure em{font-style:normal;font-size:15px;font-family:var(--font-sans);font-weight:600;color:var(--muted);margin-left:3px;}
.metric-line{font-size:13.5px;line-height:1.7;color:var(--muted);margin-top:12px;}
.metric-foot{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted);margin-top:16px;padding-top:12px;border-top:1px dashed var(--line);}
.arrow{font-size:12px;font-weight:700;}
.arrow.up{color:var(--accent);}

/* ================= 频道入口 ================= */
.channel-card{display:block;height:100%;padding:30px 26px;color:inherit;}
.channel-card:hover{color:inherit;}
.channel-index{display:inline-block;font-family:var(--font-serif);font-size:15px;font-weight:700;color:var(--warn);margin-bottom:14px;letter-spacing:.04em;}
.channel-card h3{margin-bottom:12px;}
.channel-card p{font-size:14px;line-height:1.8;color:var(--muted);margin-bottom:20px;}

/* ================= 场景矩阵 ================= */
.scene-card{overflow:hidden;height:100%;display:flex;flex-direction:column;}
.scene-card--big .media{border-radius:var(--radius-lg) var(--radius-lg) 0 0;}
.scene-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.scene-num{font-family:var(--font-serif);font-size:16px;font-weight:700;color:var(--warn);letter-spacing:.06em;}
.scene-card h3{font-size:19px;line-height:1.4;}
.scene-card p{font-size:14px;line-height:1.75;color:var(--muted);}
.scene-card .text-link{margin-top:auto;align-self:flex-start;}
.scene-card .badge{align-self:flex-start;}

/* ================= 功能矩阵 ================= */
.feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:30px 28px;height:100%;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#D3E0F5;}
.feature-icon{width:44px;height:44px;border-radius:12px;background:var(--blue-50);color:var(--primary);display:flex;align-items:center;justify-content:center;font-family:var(--font-serif);font-weight:700;font-size:17px;margin-bottom:18px;}
.feature-card h3{font-size:19px;margin-bottom:12px;}
.feature-list{display:flex;flex-direction:column;gap:10px;margin-bottom:20px;}
.feature-list li{position:relative;padding-left:18px;font-size:14px;line-height:1.7;color:var(--muted);}
.feature-list li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:50%;background:var(--primary);}

/* ================= 结果对比 ================= */
.compare-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:30px 26px;height:100%;}
.compare-card--pro{border-top:3px solid var(--primary);}
.compare-card h3{font-size:18px;margin-bottom:20px;}
.compare-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.7;color:var(--muted);padding:12px 0;border-bottom:1px dashed var(--line);}
.compare-list li:last-child{border-bottom:0;padding-bottom:0;}
.ico{flex:0 0 20px;width:20px;height:20px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;margin-top:2px;}
.ico.minus{background:#F1F4F9;color:#8B98AB;}
.ico.ok{background:#E6F6F3;color:#0A7F71;}
.compare-card--pro .compare-list li{color:var(--ink);}

/* ================= 里程碑 ================= */
.timeline{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:24px;}
.timeline::before{content:"";position:absolute;left:0;right:0;top:9px;height:1px;background:var(--sand-line);}
.tl-item{position:relative;padding-top:34px;}
.tl-item::before{content:"";position:absolute;top:4px;left:0;width:11px;height:11px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 3px #fff;}
.tl-year{font-family:var(--font-serif);font-size:22px;font-weight:700;color:var(--blue-900);font-variant-numeric:tabular-nums;line-height:1.2;}
.tl-title{font-size:15px;font-weight:700;color:var(--blue-900);margin:8px 0 8px;}
.tl-desc{font-size:13px;line-height:1.7;color:var(--muted);}

/* ================= 城市覆盖 ================= */
.city-list{display:flex;flex-wrap:wrap;gap:10px;}
.city-chip{font-size:13.5px;color:var(--blue-900);background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 16px;transition:background .22s ease,border-color .22s ease,color .22s ease,transform .22s ease;}
.city-chip:hover{background:var(--blue-50);border-color:#C7D9F7;color:var(--primary);transform:translateY(-1px);}
.city-note{font-size:13px;color:var(--muted);margin-top:18px;}
.point-list{display:flex;flex-direction:column;gap:14px;margin-top:24px;}
.point-list li{position:relative;padding-left:22px;font-size:14.5px;line-height:1.75;color:var(--muted);}
.point-list li::before{content:"";position:absolute;left:0;top:.6em;width:8px;height:8px;border-radius:50%;background:var(--accent);}

/* ================= 话题专题 ================= */
.topic-card{overflow:hidden;height:100%;display:flex;flex-direction:column;}
.topic-card .media{border-radius:var(--radius-lg) var(--radius-lg) 0 0;}
.topic-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.topic-body h3{font-size:18px;}
.topic-body p{font-size:14px;line-height:1.75;color:var(--muted);}
.topic-meta{font-size:12.5px;color:var(--muted);margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);}
.topic-note{font-size:12.5px;color:var(--muted);margin-top:22px;}

/* ================= 安全五步 ================= */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;position:relative;}
.steps::before{content:"";position:absolute;left:0;right:0;top:23px;height:1px;background:var(--line);}
.step{position:relative;padding-top:64px;}
.step-num{position:absolute;top:0;left:0;width:46px;height:46px;border-radius:12px;background:var(--blue-50);border:1px solid #D8E5FB;color:var(--primary);font-family:var(--font-serif);font-size:18px;font-weight:700;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;}
.step h3{font-size:16px;margin-bottom:8px;}
.step p{font-size:13.5px;line-height:1.7;color:var(--muted);}

/* ================= 资讯列表 ================= */
.news-main{display:block;overflow:hidden;height:100%;color:inherit;}
.news-main:hover{color:inherit;}
.news-main .media{border-radius:var(--radius-lg) var(--radius-lg) 0 0;}
.news-main-body{padding:24px;display:flex;flex-direction:column;gap:12px;}
.news-main-body h3{font-size:21px;line-height:1.45;}
.news-main-body p{font-size:14px;line-height:1.75;color:var(--muted);}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);flex-wrap:wrap;}
.news-meta .sep{width:1px;height:12px;background:var(--line);display:inline-block;}
.news-list{display:flex;flex-direction:column;}
.news-item{display:flex;gap:16px;padding:18px 0;border-bottom:1px dashed var(--line);color:inherit;}
.news-item:first-child{padding-top:0;}
.news-item:last-child{border-bottom:0;padding-bottom:0;}
.news-item:hover{color:inherit;}
.news-item:hover h4{color:var(--primary);}
.news-thumb{flex:0 0 88px;width:88px;height:88px;border-radius:12px;overflow:hidden;background:var(--blue-50);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .28s ease;}
.news-item:hover .news-thumb img{transform:scale(1.05);}
.news-item-body{flex:1 1 auto;min-width:0;}
.news-item h4{font-size:15.5px;font-weight:700;line-height:1.5;color:var(--blue-900);margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .22s ease;}
.news-item p{font-size:13px;line-height:1.65;color:var(--muted);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:6px;}
.news-empty{background:var(--blue-50);border:1px solid #D8E5FB;border-radius:var(--radius-lg);padding:56px 24px;text-align:center;}
.news-empty .empty-icon{width:52px;height:52px;border-radius:50%;border:2px solid #C7D9F7;color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:20px;margin:0 auto 16px;}
.news-empty p{font-size:14.5px;color:var(--muted);margin-bottom:18px;}

/* ================= 用户见证 ================= */
.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:28px 26px;height:100%;display:flex;flex-direction:column;gap:16px;position:relative;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;}
.quote-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#D3E0F5;}
.quote-mark{font-family:var(--font-serif);font-size:44px;line-height:.6;color:#C7D9F7;}
.quote-text{font-size:14.5px;line-height:1.85;color:var(--ink);}
.quote-foot{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:16px;border-top:1px dashed var(--line);}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--blue-50);color:var(--primary);display:flex;align-items:center;justify-content:center;font-family:var(--font-serif);font-weight:700;font-size:15px;flex:0 0 40px;}
.quote-name{font-size:14px;font-weight:700;color:var(--blue-900);line-height:1.4;}
.quote-tag{font-size:12px;color:var(--muted);}
.quote-card .badge{align-self:flex-start;}

/* ================= 平台保障 ================= */
.guard-item{padding:8px 4px;}
.guard-num{font-family:var(--font-serif);font-size:30px;font-weight:700;color:#C7D9F7;line-height:1;font-variant-numeric:tabular-nums;}
.guard-item h3{font-size:17px;margin:14px 0 10px;}
.guard-item p{font-size:13.5px;line-height:1.75;color:var(--muted);}
.guard-note{font-size:12px;line-height:1.8;color:var(--muted);margin-top:36px;padding-top:18px;border-top:1px dashed var(--line);}

/* ================= 快速解答 ================= */
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.quick-item{background:#fff;border:1px solid var(--sand-line);border-radius:var(--radius-lg);padding:26px 24px;}
.quick-num{font-family:var(--font-serif);font-size:34px;font-weight:700;color:var(--warn);line-height:1;font-variant-numeric:tabular-nums;}
.quick-item h3{font-size:17px;margin:14px 0 10px;}
.quick-item p{font-size:13.5px;line-height:1.75;color:var(--muted);}
.quick-cta{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-top:32px;padding-top:26px;border-top:1px solid var(--sand-line);}
.quick-cta p{font-size:14.5px;color:var(--muted);}

/* ================= FAQ ================= */
.faq-list{max-width:880px;}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-md);background:#fff;margin-bottom:12px;overflow:hidden;transition:border-color .24s ease,box-shadow .24s ease;}
.faq-item.is-open{border-color:#C7D9F7;box-shadow:var(--shadow-sm);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;background:none;border:0;text-align:left;padding:20px 22px;min-height:64px;cursor:pointer;font-size:16px;font-weight:700;color:var(--blue-900);line-height:1.5;}
.faq-q:hover{color:var(--primary);}
.faq-icon{flex:0 0 26px;width:26px;height:26px;border-radius:50%;border:1px solid #CBD9EE;color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:15px;line-height:1;transition:transform .24s ease,background .24s ease;}
.faq-item.is-open .faq-icon{background:var(--blue-50);transform:rotate(45deg);}
.faq-a{display:none;padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--muted);}
.faq-item.is-open .faq-a{display:block;}

/* ================= 转化表单 ================= */
.publish-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:30px 28px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--blue-900);margin-bottom:8px;}
.field input[type="text"],.field input[type="tel"],.field input[type="email"],.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;font-size:14.5px;font-family:inherit;color:var(--ink);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  transition:border-color .22s ease,box-shadow .22s ease;
  appearance:none;
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field select{background-image:linear-gradient(45deg,transparent 50%,#8B98AB 50%),linear-gradient(135deg,#8B98AB 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;padding-right:40px;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,107,224,.16);}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:#D9534F;box-shadow:0 0 0 3px rgba(217,83,79,.12);}
.field-error{display:none;font-size:12px;color:#C0392B;margin-top:6px;}
.field.has-error .field-error{display:block;}
.chip-group{display:flex;flex-wrap:wrap;gap:10px;}
.chip-check{position:relative;display:inline-flex;align-items:center;}
.chip-check input{position:absolute;opacity:0;width:0;height:0;}
.chip-check span{display:inline-block;font-size:13.5px;color:var(--blue-900);background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 16px;cursor:pointer;transition:all .22s ease;min-height:38px;line-height:1.5;}
.chip-check input:checked + span{background:var(--blue-50);border-color:var(--primary);color:var(--primary);font-weight:600;}
.chip-check input:focus-visible + span{outline:3px solid rgba(47,107,224,.35);outline-offset:2px;}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:13px;line-height:1.7;color:var(--muted);margin-bottom:20px;}
.agree input{width:18px;height:18px;margin-top:2px;accent-color:var(--primary);flex:0 0 18px;}
.form-privacy{font-size:12px;line-height:1.8;color:var(--muted);margin-top:18px;}
.check-list{display:flex;flex-direction:column;gap:12px;margin-top:22px;}
.check-list li{position:relative;padding-left:26px;font-size:14.5px;line-height:1.75;color:var(--muted);}
.check-list li::before{content:"✓";position:absolute;left:0;top:0;color:var(--accent);font-weight:700;font-size:14px;}

/* ================= 页脚 ================= */
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-name{font-size:17px;font-weight:700;color:var(--blue-900);line-height:1.3;}
.footer-sub{font-size:11px;letter-spacing:.08em;color:var(--muted);}
.footer-text{font-size:13.5px;line-height:1.85;color:var(--muted);max-width:320px;}
.footer-safe{font-size:12px;line-height:1.8;color:var(--muted);margin-top:14px;padding-left:12px;border-left:2px solid var(--sand-line);}
.footer-title{font-size:14px;font-weight:700;color:var(--blue-900);margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:13.5px;color:var(--muted);}
.footer-links a:hover{color:var(--primary);}
.footer-bottom{margin-top:52px;padding:22px 0 26px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;font-size:12px;color:var(--muted);line-height:1.8;}
.footer-bottom .domain{font-variant-numeric:tabular-nums;}
.footer-disclaimer{font-size:12px;line-height:1.85;color:var(--muted);padding-bottom:24px;max-width:900px;}

/* ================= 响应式 ================= */
@media screen and (max-width:1023px){
  .grid-container{padding-left:24px;padding-right:24px;}
  .section{padding:64px 0;}
  .hero{padding:44px 0 56px;}
  .hero-side{grid-template-columns:1fr 1fr;}
  .hero-tile--photo img{aspect-ratio:4/3;}
  .timeline{grid-template-columns:1fr;gap:0;}
  .timeline::before{left:5px;right:auto;top:0;bottom:0;width:1px;height:auto;}
  .tl-item{padding:0 0 26px 34px;}
  .tl-item::before{top:6px;left:0;}
  .steps{grid-template-columns:1fr 1fr;gap:22px;}
  .steps::before{display:none;}
  .step{padding-top:58px;}
  .quick-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:767px){
  .header-cta .cta-full{display:none;}
  .header-cta .cta-short{display:inline;}
  .brand-name{font-size:16.5px;}
  .hero-side{grid-template-columns:1fr;}
  .hero-strip{padding:16px 18px;gap:16px;}
  .strip-item{min-width:calc(50% - 10px);}
  .strip-link{width:100%;}
  .metric-card--lead{padding:26px 22px;}
  .news-thumb{flex:0 0 72px;width:72px;height:72px;}
}
@media screen and (max-width:639px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .section{padding:52px 0;}
  .header-inner{min-height:60px;}
  .brand-sub{display:none;}
  .hero{padding:36px 0 48px;}
  .hero-actions .btn{width:100%;}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .publish-form{padding:24px 20px;}
  .footer-bottom{align-items:flex-start;flex-direction:column;}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --primary:#2F6BE0;
  --primary-hover:#2557C0;
  --blue-900:#12305E;
  --blue-50:#EEF4FF;
  --page:#FFFFFF;
  --surface:#F7F9FC;
  --sand:#FAF4EA;
  --sand-line:#EADFCB;
  --ink:#16202E;
  --muted:#5D6B80;
  --line:#E5ECF6;
  --accent:#12A594;
  --warn:#E4813C;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(18,48,94,.05), 0 14px 34px -18px rgba(18,48,94,.22);
  --shadow-md:0 1px 2px rgba(18,48,94,.06), 0 22px 44px -16px rgba(18,48,94,.26);
  --font-serif:'Noto Serif SC','Songti SC','SimSun',serif;
  --font-sans:'Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .22s ease,border-color .22s ease,background .22s ease;}
a:hover{color:var(--primary-hover);}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--blue-900);letter-spacing:-.01em;margin:0;}
p{margin:0 0 1em;}
ul,ol{margin:0 0 1em;padding-left:1.3em;}
button{font-family:inherit;font-size:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(47,107,224,.35);outline-offset:2px;}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}
/* ================= 容器 ================= */
.grid-container{width:100%;max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px;}
.section{padding:88px 0;}
.section--surface{background:var(--surface);}
.section--sand{background:var(--sand);}
.section--line{border-top:1px solid var(--line);}
.section-head{max-width:780px;margin-bottom:40px;}
.eyebrow{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.1em;color:var(--primary);background:rgba(47,107,224,.08);padding:5px 12px;border-radius:999px;margin-bottom:14px;}
.section-title{font-size:clamp(23px,2.6vw,34px);line-height:1.3;font-weight:700;}
.section-desc{margin-top:14px;font-size:16px;line-height:1.85;color:var(--muted);max-width:720px;}
/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1.2;
  padding:13px 22px;border-radius:var(--radius-sm);
  border:1px solid transparent;cursor:pointer;min-height:44px;text-align:center;
  transition:background .26s ease,color .26s ease,border-color .26s ease,transform .26s ease,box-shadow .26s ease;
}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);}
.btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px -12px rgba(47,107,224,.6);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-ghost{background:#fff;color:var(--primary);border-color:#CBD9EE;}
.btn-ghost:hover{background:var(--blue-50);border-color:var(--primary);color:var(--primary-hover);transform:translateY(-1px);}
.btn-ghost:active{transform:none;}
.btn-block{width:100%;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);border-bottom:1px solid rgba(47,107,224,.35);padding-bottom:2px;}
.text-link:hover{color:var(--primary-hover);border-color:var(--primary-hover);}
/* ================= 顶部导航 ================= */
.site-header{position:sticky;top:0;z-index:90;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .28s ease;}
.site-header.is-scrolled{box-shadow:0 8px 26px -20px rgba(18,48,94,.55);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:12px;color:inherit;}
.brand:hover{color:inherit;}
.brand-mark{width:28px;height:28px;border-radius:8px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--font-serif);font-size:15px;font-weight:700;flex:0 0 28px;}
.brand-text{display:flex;flex-direction:column;justify-content:center;}
.brand-name{display:block;font-size:19px;font-weight:700;color:var(--blue-900);line-height:1.25;letter-spacing:-.01em;}
.brand-sub{display:block;font-size:11px;font-weight:400;letter-spacing:.08em;color:var(--muted);line-height:1.4;}
.header-cta{flex:0 0 auto;}
.header-cta .cta-short{display:none;}
/* ================= 文章头部 ================= */
.article-hero{background:#fff;padding:44px 0 40px;border-bottom:1px solid var(--line);position:relative;overflow:hidden;}
.article-hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle at 35% 35%,rgba(47,107,224,.10),rgba(47,107,224,0) 68%);
  pointer-events:none;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:#C3CFE2;}
.breadcrumb .current{color:var(--blue-900);font-weight:500;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;background:var(--blue-50);border:1px solid #D8E5FB;color:var(--primary);font-size:12px;font-weight:600;letter-spacing:.04em;}
.article-hero h1{font-size:clamp(28px,3.8vw,40px);line-height:1.3;font-weight:700;margin:16px 0 18px;max-width:900px;}
.article-lead{font-size:16px;line-height:1.85;color:var(--muted);max-width:820px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:24px;font-size:13px;color:var(--muted);}
.article-meta .divider{width:1px;height:12px;background:var(--line);display:inline-block;}
.article-meta strong{color:var(--blue-900);font-weight:600;}
/* ================= 正文布局 ================= */
.article-main{padding:56px 0 72px;background:#fff;}
.article-layout{padding-top:0;}
.article-col-main{min-width:0;}
.prose{max-width:720px;font-size:17px;line-height:1.9;color:#22303F;}
.prose > *:first-child{margin-top:0;}
.prose p{margin:0 0 1.2em;}
.prose h2{
  font-size:clamp(21px,2.2vw,26px);line-height:1.45;font-weight:700;
  margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--primary);
}
.prose h3{font-size:20px;line-height:1.5;font-weight:700;margin:28px 0 12px;}
.prose h4{font-size:17px;line-height:1.5;font-weight:700;margin:22px 0 10px;color:var(--blue-900);}
.prose a{color:var(--primary);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;}
.prose a:hover{color:var(--primary-hover);}
.prose ul,.prose ol{padding-left:1.3em;margin:0 0 1.2em;}
.prose ul li,.prose ol li{margin-bottom:8px;}
.prose ul li::marker{color:var(--primary);}
.prose strong{color:var(--blue-900);font-weight:600;}
.prose blockquote{
  margin:26px 0;padding:20px 22px;background:var(--sand);
  border-left:3px solid var(--primary);border-radius:0 var(--radius-md) var(--radius-md) 0;
  color:#4C4535;font-size:16px;line-height:1.85;
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{border-radius:14px;margin:24px 0 10px;width:100%;}
.prose figure{margin:24px 0;}
.prose figcaption{font-size:12px;color:var(--muted);text-align:center;margin-top:8px;}
.prose table{width:100%;border-collapse:collapse;border:1px solid var(--line);margin:24px 0;font-size:14px;line-height:1.7;}
.prose th,.prose td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.prose th{background:var(--blue-50);color:var(--blue-900);font-weight:600;}
.prose tbody tr:nth-child(even){background:var(--surface);}
.prose code{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-size:14px;}
.empty-state{
  max-width:720px;background:var(--blue-50);border:1px solid #D8E5FB;border-radius:var(--radius-lg);
  padding:56px 30px;text-align:center;
}
.empty-state .empty-title{font-family:var(--font-serif);font-size:24px;font-weight:700;color:var(--blue-900);margin-bottom:10px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:22px;}
/* ================= 侧栏 ================= */
.side-col{position:relative;}
.side-sticky{position:sticky;top:96px;display:grid;gap:16px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:22px 22px 20px;transition:box-shadow .28s ease,border-color .28s ease,transform .28s ease;}
.side-card:hover{box-shadow:var(--shadow-md);border-color:#D3E0F5;transform:translateY(-2px);}
.side-card--blue{background:var(--blue-50);border-color:#D8E5FB;}
.side-card--sand{background:var(--sand);border-color:var(--sand-line);}
.side-title{font-size:16px;font-weight:700;color:var(--blue-900);font-family:var(--font-sans);margin-bottom:12px;display:flex;align-items:center;gap:8px;}
.side-title::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--primary);display:inline-block;}
.side-list{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.side-list li{position:relative;padding-left:16px;font-size:14px;line-height:1.7;color:#3C4A5C;}
.side-list li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--primary);}
.side-links{display:grid;gap:2px;margin-top:4px;}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 0;font-size:14px;color:var(--blue-900);border-bottom:1px dashed var(--line);}
.side-links a:last-child{border-bottom:none;}
.side-links a:hover{color:var(--primary);}
.side-links .arrow{color:var(--primary);font-size:13px;}
.side-note{font-size:12px;line-height:1.7;color:var(--muted);margin:12px 0 0;}
/* ================= 要点小结 ================= */
.summary-wrap{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:64px 0;}
.summary-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:34px 34px 30px;}
.summary-card h2{font-size:clamp(21px,2.2vw,26px);line-height:1.4;margin-bottom:8px;}
.summary-card .summary-desc{font-size:14px;color:var(--muted);margin-bottom:22px;}
.check-list{list-style:none;margin:0;padding:0;display:grid;gap:14px;}
.check-list li{position:relative;padding-left:34px;font-size:15.5px;line-height:1.75;color:#22303F;}
.check-list li::before{
  content:"✓";position:absolute;left:0;top:2px;width:22px;height:22px;border-radius:50%;
  background:rgba(18,165,148,.12);color:var(--accent);font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
/* ================= 相关推荐 ================= */
.related{padding:72px 0;background:#fff;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden;color:inherit;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#D3E0F5;color:inherit;}
.rel-media{overflow:hidden;background:var(--blue-50);}
.rel-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease;}
.rel-card:hover .rel-media img{transform:scale(1.03);}
.rel-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-tag{align-self:flex-start;font-size:12px;font-weight:600;color:var(--primary);background:rgba(47,107,224,.08);border-radius:999px;padding:3px 10px;}
.rel-title{font-size:17px;line-height:1.5;font-weight:700;color:var(--blue-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-meta{margin-top:auto;font-size:12.5px;color:var(--muted);}
/* ================= 上下篇 ================= */
.pager{padding:0 0 72px;background:#fff;}
.pager-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.pager-card{display:flex;align-items:center;gap:14px;padding:20px 22px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface);transition:border-color .26s ease,background .26s ease,box-shadow .26s ease;}
.pager-card:hover{border-color:#CBD9EE;background:#fff;box-shadow:var(--shadow-sm);}
.pager-card .pager-dir{font-size:12px;color:var(--muted);letter-spacing:.08em;display:block;margin-bottom:2px;}
.pager-card .pager-text{font-size:15px;font-weight:600;color:var(--blue-900);}
.pager-card .pager-arrow{font-size:18px;color:var(--primary);flex:0 0 auto;}
.pager-card.is-disabled{opacity:.62;pointer-events:none;}
/* ================= CTA 条 ================= */
.cta-band{background:var(--blue-50);border-top:1px solid #D8E5FB;border-bottom:1px solid #D8E5FB;padding:52px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(21px,2.4vw,28px);line-height:1.35;margin-bottom:8px;}
.cta-inner p{font-size:15px;color:var(--muted);margin:0;max-width:620px;}
.cta-inner .btn{flex:0 0 auto;}
/* ================= 免责 ================= */
.legal{padding:36px 0 56px;background:#fff;}
.legal-inner{border-top:1px solid var(--line);padding-top:22px;}
.legal p{font-size:12px;line-height:1.85;color:var(--muted);margin:0 0 8px;}
.legal a{color:var(--muted);text-decoration:underline;text-underline-offset:3px;}
.legal a:hover{color:var(--primary);}
/* ================= 页脚 ================= */
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding:64px 0 34px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.footer-name{font-size:17px;font-weight:700;color:var(--blue-900);line-height:1.3;}
.footer-sub{font-size:11px;letter-spacing:.08em;color:var(--muted);}
.footer-text{font-size:13.5px;line-height:1.8;color:var(--muted);margin:0 0 10px;}
.footer-safe{font-size:12px;line-height:1.75;color:#8695A8;margin:0;}
.footer-title{font-size:14px;font-weight:700;color:var(--blue-900);margin-bottom:14px;}
.footer-links{display:grid;gap:9px;}
.footer-links a{font-size:13.5px;color:var(--muted);}
.footer-links a:hover{color:var(--primary);}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;margin-top:42px;padding-top:20px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted);}
.footer-bottom .domain{font-variant-numeric:tabular-nums;color:#8695A8;}
.footer-disclaimer{font-size:12px;line-height:1.8;color:#8695A8;margin:14px 0 0;}
/* ================= 响应式 ================= */
@media screen and (max-width:1023px){
  .section{padding:64px 0;}
  .article-main{padding:44px 0 56px;}
  .side-sticky{position:static;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .breadcrumb .current{max-width:260px;}
}
@media screen and (max-width:767px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .section{padding:52px 0;}
  .header-inner{min-height:64px;}
  .brand-name{font-size:16.5px;}
  .brand-sub{font-size:10.5px;}
  .summary-wrap{padding:48px 0;}
  .summary-card{padding:26px 22px;}
  .related{padding:52px 0;}
  .pager{padding-bottom:52px;}
  .related-grid{grid-template-columns:1fr;}
  .pager-grid{grid-template-columns:1fr;}
  .cta-band{padding:40px 0;}
  .cta-inner .btn{width:100%;}
  .article-hero{padding:32px 0 30px;}
  .article-meta{gap:9px;}
  .site-footer{padding:48px 0 28px;}
  .footer-grid{grid-template-columns:1fr;}
}
@media screen and (max-width:639px){
  .header-cta .cta-full{display:none;}
  .header-cta .cta-short{display:inline;}
  .header-cta{padding:11px 16px;}
  .breadcrumb .current{display:none;}
  .prose{font-size:16px;line-height:1.85;}
  .article-hero h1{font-size:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --primary:#2F6BE0;
  --primary-hover:#2557C0;
  --blue-900:#12305E;
  --blue-50:#EEF4FF;
  --page:#FFFFFF;
  --surface:#F7F9FC;
  --sand:#FAF4EA;
  --sand-line:#EADFCB;
  --ink:#16202E;
  --muted:#5D6B80;
  --line:#E5ECF6;
  --accent:#12A594;
  --warn:#E4813C;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(18,48,94,.05), 0 14px 34px -18px rgba(18,48,94,.22);
  --shadow-md:0 1px 2px rgba(18,48,94,.06), 0 22px 44px -16px rgba(18,48,94,.26);
  --font-serif:'Noto Serif SC','Songti SC','SimSun',serif;
  --font-sans:'Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--primary-hover);}
button{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-serif);
  font-weight:700;
  color:var(--blue-900);
  letter-spacing:-.01em;
  margin:0 0 .5em;
  line-height:1.3;
}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.22;}
h2{font-size:clamp(23px,2.6vw,34px);line-height:1.3;}
h3{font-size:20px;line-height:1.45;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:3px solid rgba(47,107,224,.35);outline-offset:2px;}
ul,ol{margin:0;padding:0;list-style:none;}
.grid-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
.section{padding:88px 0;}
.section--surface{background:var(--surface);}
.section--sand{background:var(--sand);}
.section--tight{padding:52px 0 30px;}
.section-head{max-width:800px;margin-bottom:44px;}
.section-head h2{margin-bottom:12px;}
.section-desc{margin:0;font-size:16px;line-height:1.85;color:var(--muted);}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.1em;
  color:var(--primary);background:rgba(47,107,224,.08);
  padding:5px 12px;border-radius:999px;margin-bottom:14px;
}
.eyebrow--sand{color:#9A6A22;background:rgba(228,129,60,.12);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1.2;
  padding:13px 22px;border-radius:var(--radius-sm);
  border:1px solid transparent;cursor:pointer;min-height:44px;text-align:center;
  transition:background .26s ease,color .26s ease,border-color .26s ease,transform .26s ease,box-shadow .26s ease;
}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);}
.btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px -12px rgba(47,107,224,.6);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-ghost{background:#fff;color:var(--primary);border-color:#CBD9EE;}
.btn-ghost:hover{background:var(--blue-50);border-color:var(--primary);color:var(--primary-hover);transform:translateY(-1px);}
.btn-ghost:active{transform:none;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);border-bottom:1px solid rgba(47,107,224,.35);padding-bottom:2px;}
.text-link:hover{color:var(--primary-hover);border-color:var(--primary-hover);}
.site-header{position:sticky;top:0;z-index:90;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .28s ease;}
.site-header.is-scrolled{box-shadow:0 8px 26px -20px rgba(18,48,94,.55);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:12px;color:inherit;}
.brand:hover{color:inherit;}
.brand-mark{
  width:28px;height:28px;border-radius:8px;background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);font-size:15px;font-weight:700;flex:0 0 28px;
}
.brand-text{display:flex;flex-direction:column;justify-content:center;}
.brand-name{display:block;font-size:19px;font-weight:700;color:var(--blue-900);line-height:1.25;letter-spacing:-.01em;}
.brand-sub{display:block;font-size:11px;font-weight:400;letter-spacing:.08em;color:var(--muted);line-height:1.4;}
.brand-crumb{
  font-size:11px;color:var(--muted);letter-spacing:.08em;
  border-left:1px solid var(--line);padding-left:10px;margin-left:4px;line-height:1.4;
}
.header-cta{flex:0 0 auto;}
.header-cta .cta-short{display:none;}
.cat-hero{position:relative;overflow:hidden;background:#fff;border-bottom:1px solid var(--line);padding:68px 0 72px;}
.cat-hero::before{
  content:"";position:absolute;right:70px;top:34px;width:240px;height:240px;
  border:1px dashed #D8E5FB;border-radius:50%;pointer-events:none;
}
.cat-hero::after{
  content:"";position:absolute;right:-140px;bottom:-180px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle at 32% 32%, rgba(47,107,224,.12), rgba(47,107,224,0) 70%);
  pointer-events:none;
}
.cat-hero-inner{position:relative;z-index:2;display:flex;gap:24px;align-items:flex-start;max-width:840px;}
.cat-bar{flex:0 0 4px;width:4px;align-self:stretch;background:var(--primary);border-radius:4px;min-height:180px;}
.cat-hero-content{flex:1 1 auto;}
.cat-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:var(--blue-50);border:1px solid #D8E5FB;color:var(--primary);
  font-size:13px;font-weight:600;letter-spacing:.02em;margin-bottom:18px;
}
.cat-hero h1{margin:0 0 18px;}
.cat-lead{font-size:16.5px;line-height:1.9;color:var(--muted);max-width:720px;}
.cat-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.pill{
  display:inline-flex;align-items:center;font-size:13px;font-weight:600;
  color:var(--blue-900);background:#fff;border:1px solid var(--line);
  padding:6px 14px;border-radius:999px;
}
.cat-meta{margin-top:20px;font-size:13px;color:var(--muted);line-height:1.7;}
.filter-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);padding:24px 26px;
}
.filter-row{display:flex;align-items:flex-start;gap:16px;padding:12px 0;}
.filter-row + .filter-row{border-top:1px dashed var(--line);}
.filter-label{flex:0 0 56px;font-size:13px;font-weight:600;color:var(--blue-900);line-height:30px;letter-spacing:.04em;}
.chips{display:flex;flex-wrap:wrap;gap:10px;flex:1 1 auto;}
.chip{
  appearance:none;background:#fff;border:1px solid var(--line);color:var(--muted);
  font-size:13.5px;line-height:1.2;padding:7px 15px;border-radius:999px;cursor:pointer;
  min-height:34px;transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease;
}
.chip:hover{background:var(--blue-50);border-color:#CBD9EE;color:var(--primary);}
.chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600;}
.chip.is-active:hover{background:var(--primary-hover);border-color:var(--primary-hover);color:#fff;}
.card-list{margin-top:-12px;}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);overflow:hidden;height:100%;
  display:flex;flex-direction:column;margin-bottom:24px;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#D3E0F5;}
.card-media{overflow:hidden;background:var(--blue-50);}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .28s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.badge{
  display:inline-flex;align-items:center;align-self:flex-start;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--primary);background:var(--blue-50);border:1px solid #DCE7FB;
  padding:3px 10px;border-radius:999px;
}
.badge--sand{color:#9A6A22;background:rgba(228,129,60,.12);border-color:var(--sand-line);}
.card-title{font-size:18px;line-height:1.5;margin:0;}
.card-title a{color:var(--blue-900);}
.card-title a:hover{color:var(--primary);}
.card-desc{font-size:14px;line-height:1.75;color:var(--muted);margin:0;}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:12.5px;color:var(--muted);margin-top:auto;padding-top:8px;
  border-top:1px solid var(--line);
}
.meta-dot{width:3px;height:3px;border-radius:50%;background:#C6D2E4;display:inline-block;}
.empty-state{
  background:var(--blue-50);border:1px solid #DCE7FB;border-radius:var(--radius-lg);
  padding:56px 28px;text-align:center;
}
.empty-icon{
  width:44px;height:44px;border-radius:12px;border:2px solid #C6D9F9;
  margin:0 auto 18px;position:relative;
}
.empty-icon::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:16px;height:2px;background:#C6D9F9;border-radius:2px;
}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px;}
.list-foot{display:flex;justify-content:center;margin-top:20px;}
.feature-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden;height:100%;
  margin-bottom:24px;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#D3E0F5;}
.feature-card .card-media img{aspect-ratio:4/3;}
.feature-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px;}
.feature-body h3{font-size:21px;margin:0;}
.feature-body p{font-size:14.5px;line-height:1.8;color:var(--muted);margin:0;}
.feature-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px;}
.mini-tag{font-size:12px;color:var(--muted);background:var(--surface);border:1px solid var(--line);padding:3px 10px;border-radius:999px;}
.guide-copy h2{margin-bottom:14px;}
.guide-copy p{font-size:15.5px;line-height:1.9;color:var(--muted);}
.step-list{display:flex;flex-direction:column;gap:0;}
.step-list li{display:flex;gap:16px;padding:16px 0;border-bottom:1px dashed var(--sand-line);}
.step-list li:last-child{border-bottom:none;padding-bottom:0;}
.step-num{
  flex:0 0 34px;height:34px;border-radius:10px;background:#fff;border:1px solid var(--sand-line);
  color:var(--warn);font-family:var(--font-serif);font-size:14px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.step-list h3{font-size:16px;margin:0 0 4px;}
.step-list p{font-size:14px;line-height:1.7;color:var(--muted);margin:0;}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);padding:26px 24px;height:100%;margin-bottom:24px;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#D3E0F5;}
.stat-card--accent{border-color:#C6D9F9;position:relative;overflow:hidden;}
.stat-card--accent::before{content:"";position:absolute;top:0;right:0;width:3px;height:44px;background:var(--primary);}
.stat-num{
  font-family:var(--font-serif);font-size:38px;line-height:1.1;color:var(--blue-900);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.stat-unit{font-size:14px;color:var(--muted);margin-left:6px;font-family:var(--font-sans);}
.stat-label{font-size:14.5px;font-weight:600;color:var(--blue-900);margin-top:10px;}
.stat-note{font-size:12.5px;color:var(--muted);line-height:1.7;margin-top:6px;}
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:none;padding:20px 4px;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--blue-900);line-height:1.5;
  transition:color .22s ease;
}
.faq-q:hover{color:var(--primary);}
.faq-icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;border:1px solid #CBD9EE;
  position:relative;transition:border-color .22s ease,background .22s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);transition:opacity .22s ease,transform .22s ease;
}
.faq-icon::before{width:11px;height:1.6px;}
.faq-icon::after{width:1.6px;height:11px;}
.faq-item.is-open .faq-icon{background:var(--blue-50);border-color:var(--primary);}
.faq-item.is-open .faq-icon::after{opacity:0;transform:translate(-50%,-50%) scaleY(0);}
.faq-a{display:none;padding:0 4px 22px;}
.faq-item.is-open .faq-a{display:block;}
.faq-a p{font-size:15px;line-height:1.85;color:var(--muted);margin:0;background:var(--blue-50);border-top:1px solid var(--line);border-radius:var(--radius-md);padding:16px 18px;}
.cta-line{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  border-top:1px solid var(--line);margin-top:44px;padding-top:36px;
}
.cta-line h3{font-size:21px;margin:0 0 8px;}
.cta-line p{font-size:14.5px;color:var(--muted);margin:0;}
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding:64px 0 30px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-name{font-size:17px;font-weight:700;color:var(--blue-900);line-height:1.3;}
.footer-sub{font-size:11px;letter-spacing:.08em;color:var(--muted);}
.footer-text{font-size:13.5px;line-height:1.8;color:var(--muted);}
.footer-safe{font-size:12px;line-height:1.7;color:var(--muted);margin-top:12px;}
.footer-title{font-size:14px;font-weight:700;color:var(--blue-900);margin-bottom:14px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:13.5px;color:var(--muted);}
.footer-links a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--muted);
}
.footer-bottom .domain{font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.footer-disclaimer{font-size:12px;line-height:1.75;color:var(--muted);margin-top:14px;}
@media screen and (max-width:1023px){
  .grid-container{padding-left:24px;padding-right:24px;}
  .section{padding:64px 0;}
  .section--tight{padding:40px 0 24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cat-hero{padding:52px 0 56px;}
  .cat-hero::before{display:none;}
  .cat-hero::after{width:320px;height:320px;right:-120px;bottom:-140px;}
  .filter-label{flex:0 0 44px;}
}
@media screen and (max-width:639px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .section{padding:52px 0;}
  .section--tight{padding:32px 0 18px;}
  .header-inner{min-height:60px;}
  .brand-name{font-size:16px;}
  .brand-sub{font-size:10px;}
  .brand-crumb{display:none;}
  .header-cta{padding:11px 16px;font-size:14px;}
  .header-cta .cta-full{display:none;}
  .header-cta .cta-short{display:inline;}
  .cat-hero-inner{gap:16px;}
  .cat-bar{min-height:150px;}
  .cat-lead{font-size:15.5px;}
  .filter-panel{padding:18px 18px;}
  .filter-row{flex-direction:column;gap:10px;}
  .filter-label{line-height:1.4;}
  .chips{gap:8px;}
  .chip{font-size:13px;padding:7px 13px;}
  .cta-line .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .faq-q{font-size:15px;padding:18px 2px;}
  .stat-num{font-size:32px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --primary:#2F6BE0;
  --primary-hover:#2557C0;
  --blue-900:#12305E;
  --blue-50:#EEF4FF;
  --page:#FFFFFF;
  --surface:#F7F9FC;
  --sand:#FAF4EA;
  --sand-line:#EADFCB;
  --ink:#16202E;
  --muted:#5D6B80;
  --line:#E5ECF6;
  --accent:#12A594;
  --warn:#E4813C;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(18,48,94,.05), 0 14px 34px -18px rgba(18,48,94,.22);
  --shadow-md:0 1px 2px rgba(18,48,94,.06), 0 22px 44px -16px rgba(18,48,94,.26);
  --font-serif:'Noto Serif SC','Songti SC','SimSun',serif;
  --font-sans:'Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--primary-hover);}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;color:var(--blue-900);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;}
:focus-visible{outline:3px solid rgba(47,107,224,.35);outline-offset:2px;border-radius:4px;}

/* ================= 容器与板块 ================= */
.grid-container{width:100%;max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px;}
.section{padding:88px 0;}
.section--surface{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section--sand{background:var(--sand);border-top:1px solid var(--sand-line);border-bottom:1px solid var(--sand-line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-family:var(--font-serif);font-size:clamp(23px,2.6vw,34px);line-height:1.3;letter-spacing:-.01em;}
.section-desc{margin-top:14px;font-size:16px;line-height:1.85;color:var(--muted);}
.eyebrow{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.1em;color:var(--primary);background:rgba(47,107,224,.08);padding:5px 12px;border-radius:999px;margin-bottom:14px;}
.eyebrow--sand{color:#9A6A22;background:rgba(228,129,60,.12);}

/* ================= 按钮 / 徽章 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1.2;
  padding:13px 22px;border-radius:var(--radius-sm);
  border:1px solid transparent;cursor:pointer;min-height:44px;text-align:center;
  transition:background .26s ease,color .26s ease,border-color .26s ease,transform .26s ease,box-shadow .26s ease;
}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);}
.btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px -12px rgba(47,107,224,.6);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-ghost{background:#fff;color:var(--primary);border-color:#CBD9EE;}
.btn-ghost:hover{background:var(--blue-50);border-color:var(--primary);color:var(--primary-hover);transform:translateY(-1px);}
.btn-ghost:active{transform:none;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);border-bottom:1px solid rgba(47,107,224,.35);padding-bottom:2px;}
.text-link:hover{color:var(--primary-hover);border-color:var(--primary-hover);}
.chip{display:inline-flex;align-items:center;font-size:12.5px;font-weight:600;color:var(--primary);background:rgba(47,107,224,.07);border:1px solid #D8E5FB;border-radius:999px;padding:6px 13px;transition:background .22s ease,border-color .22s ease,color .22s ease;}
.chip--plain{color:var(--muted);background:#fff;border-color:var(--line);}
.chip--warn{color:#9A6A22;background:rgba(228,129,60,.1);border-color:var(--sand-line);}
.badge{display:inline-flex;align-items:center;font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--primary);background:var(--blue-50);border:1px solid #D8E5FB;border-radius:999px;padding:4px 10px;}

/* ================= 顶部导航 ================= */
.site-header{position:sticky;top:0;z-index:90;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .28s ease;}
.site-header.is-scrolled{box-shadow:0 8px 26px -20px rgba(18,48,94,.55);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:12px;color:inherit;min-width:0;}
.brand:hover{color:inherit;}
.brand-mark{width:28px;height:28px;border-radius:8px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--font-serif);font-size:15px;font-weight:700;flex:0 0 28px;}
.brand-text{display:flex;flex-direction:column;justify-content:center;min-width:0;}
.brand-name{display:block;font-size:19px;font-weight:700;color:var(--blue-900);line-height:1.25;letter-spacing:-.01em;white-space:nowrap;}
.brand-sub{display:block;font-size:11px;font-weight:400;letter-spacing:.08em;color:var(--muted);line-height:1.4;}
.brand-crumb{font-size:11px;letter-spacing:.06em;color:var(--muted);padding-left:11px;margin-left:2px;border-left:1px solid var(--line);align-self:center;white-space:nowrap;}
.header-cta{flex:0 0 auto;}
.header-cta .cta-short{display:none;}

/* ================= 分类标题带 ================= */
.cat-hero{position:relative;background:#fff;padding:66px 0 56px;overflow:hidden;border-bottom:1px solid var(--line);}
.cat-hero::after{
  content:"";position:absolute;right:-90px;bottom:-140px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle at 34% 32%, rgba(47,107,224,.12), rgba(47,107,224,0) 68%);
  pointer-events:none;
}
.cat-hero::before{
  content:"";position:absolute;right:64px;top:44px;width:132px;height:132px;border:1px solid var(--line);border-radius:22px;
  transform:rotate(12deg);opacity:.75;pointer-events:none;
}
.cat-hero-inner{position:relative;display:flex;gap:22px;max-width:820px;}
.cat-bar{flex:0 0 4px;width:4px;border-radius:4px;background:var(--primary);}
.cat-hero h1{font-family:var(--font-serif);font-size:clamp(30px,4.2vw,50px);line-height:1.22;letter-spacing:-.01em;margin:14px 0 16px;}
.cat-hero-lead{font-size:16.5px;line-height:1.9;color:var(--muted);max-width:700px;}
.cat-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.cat-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:22px;font-size:13px;color:var(--muted);}
.cat-meta .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;}

/* ================= 图文交替模块 ================= */
.feature-list{display:block;}
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:40px 0;border-top:1px solid var(--line);}
.feature-row:first-child{border-top:0;padding-top:0;}
.feature-row:last-child{padding-bottom:0;}
.feature-row.is-reverse .feature-media{order:2;}
.feature-media{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:var(--blue-50);box-shadow:var(--shadow-sm);}
.feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s ease;}
.feature-row:hover .feature-media img{transform:scale(1.03);}
.feature-media .media-tag{position:absolute;left:14px;bottom:14px;background:rgba(255,255,255,.95);border:1px solid var(--line);border-radius:999px;padding:5px 12px;font-size:12px;font-weight:600;color:var(--blue-900);}
.feature-body h3{font-family:var(--font-serif);font-size:24px;line-height:1.4;margin:12px 0 12px;letter-spacing:-.01em;}
.feature-body p{font-size:15px;line-height:1.85;color:var(--muted);}
.feature-points{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.feature-points li{position:relative;padding-left:20px;font-size:14.5px;line-height:1.7;color:var(--ink);}
.feature-points li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:50%;background:var(--primary);}

/* ================= 组局流程 ================= */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.flow-step{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 22px;box-shadow:var(--shadow-sm);position:relative;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;}
.flow-step:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#D3E0F5;}
.flow-num{font-family:var(--font-serif);font-size:26px;font-weight:700;color:var(--warn);line-height:1;font-variant-numeric:tabular-nums;}
.flow-step h3{font-size:17px;font-weight:700;color:var(--blue-900);margin:14px 0 8px;}
.flow-step p{font-size:13.5px;line-height:1.75;color:var(--muted);margin:0;}

/* ================= 数据参考卡 ================= */
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.data-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 24px;box-shadow:var(--shadow-sm);transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;position:relative;overflow:hidden;}
.data-card::after{content:"";position:absolute;right:0;top:0;width:3px;height:34px;background:var(--primary);border-radius:0 0 0 3px;opacity:.85;}
.data-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#D3E0F5;}
.data-card .data-label{font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.02em;}
.data-card strong{display:block;font-family:var(--font-serif);font-size:29px;line-height:1.2;color:var(--blue-900);margin:10px 0 6px;font-variant-numeric:tabular-nums;letter-spacing:-.01em;}
.data-card p{font-size:13.5px;line-height:1.75;color:var(--muted);margin:0;}
.data-card .data-note{display:block;margin-top:12px;font-size:12px;color:#8494A8;}

/* ================= 安全清单 ================= */
.safety-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 44px;}
.safety-item{display:flex;gap:12px;padding:16px 0;border-bottom:1px dashed rgba(18,48,94,.14);}
.safety-item .bullet{flex:0 0 8px;width:8px;height:8px;border-radius:50%;background:var(--accent);margin-top:.62em;}
.safety-item p{font-size:14.5px;line-height:1.75;color:var(--ink);margin:0;}
.safety-note{margin-top:26px;font-size:12px;line-height:1.8;color:#8C9AAC;}

/* ================= FAQ ================= */
.faq-list{max-width:860px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);margin-bottom:12px;overflow:hidden;transition:border-color .24s ease,box-shadow .24s ease;}
.faq-item:hover{border-color:#CBD9EE;}
.faq-item.is-open{border-color:#CBD9EE;box-shadow:var(--shadow-sm);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:19px 22px;background:transparent;border:0;min-height:64px;text-align:left;cursor:pointer;font-size:16px;font-weight:600;color:var(--blue-900);line-height:1.5;}
.faq-icon{flex:0 0 26px;width:26px;height:26px;border-radius:50%;border:1px solid #CBD9EE;color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:15px;line-height:1;transition:background .24s ease,color .24s ease,border-color .24s ease;}
.faq-item.is-open .faq-icon{background:var(--primary);border-color:var(--primary);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:16px 22px 20px;font-size:15px;line-height:1.85;color:var(--muted);background:var(--blue-50);border-top:1px solid var(--line);}

/* ================= 资讯列表 ================= */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);color:inherit;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#D3E0F5;color:inherit;}
.news-thumb{background:var(--blue-50);overflow:hidden;}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-body h3{font-size:17px;line-height:1.55;color:var(--blue-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body p{font-size:13.5px;line-height:1.75;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-time{font-size:12.5px;color:#8494A8;margin-top:auto;padding-top:6px;border-top:1px dashed rgba(18,48,94,.12);}
.news-empty{grid-column:1 / -1;text-align:center;background:var(--blue-50);border:1px solid #D8E5FB;border-radius:var(--radius-lg);padding:48px 24px;color:var(--muted);font-size:15px;}

/* ================= CTA 通栏 ================= */
.cta-band{background:var(--blue-50);border-top:1px solid #D8E5FB;padding:58px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-family:var(--font-serif);font-size:clamp(22px,2.5vw,31px);line-height:1.35;letter-spacing:-.01em;}
.cta-inner p{margin:10px 0 0;font-size:15px;line-height:1.8;color:var(--muted);max-width:640px;}

/* ================= 页脚 ================= */
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding:64px 0 32px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-name{font-size:17px;font-weight:700;color:var(--blue-900);line-height:1.3;}
.footer-sub{font-size:11px;letter-spacing:.08em;color:var(--muted);line-height:1.5;}
.footer-text{font-size:14px;line-height:1.8;color:var(--muted);margin:0 0 12px;}
.footer-safe{font-size:12px;line-height:1.75;color:#8494A8;margin:0;}
.footer-title{font-size:14px;font-weight:600;color:var(--blue-900);margin-bottom:14px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--muted);}
.footer-links a:hover{color:var(--primary);}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:44px;padding-top:20px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}
.footer-bottom .domain{color:#8494A8;}
.footer-disclaimer{font-size:12px;line-height:1.8;color:#8C9AAC;margin:14px 0 0;}

/* ================= 响应式 ================= */
@media (max-width:1023px){
  .section{padding:64px 0;}
  .grid-container{padding-left:24px;padding-right:24px;}
  .feature-row{grid-template-columns:1fr;gap:26px;padding:34px 0;}
  .feature-row.is-reverse .feature-media{order:0;}
  .flow-grid{grid-template-columns:1fr 1fr;}
  .data-grid{grid-template-columns:1fr 1fr;}
  .news-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .cat-hero{padding:52px 0 46px;}
  .cat-hero::before{display:none;}
}
@media (max-width:639px){
  .section{padding:48px 0;}
  .grid-container{padding-left:20px;padding-right:20px;}
  .header-inner{min-height:60px;}
  .brand-name{font-size:16px;}
  .brand-crumb{display:none;}
  .header-cta .cta-full{display:none;}
  .header-cta .cta-short{display:inline;}
  .header-cta{padding:11px 16px;font-size:14px;}
  .cat-hero h1{font-size:30px;}
  .cat-hero-lead{font-size:15.5px;}
  .safety-grid{grid-template-columns:1fr;gap:0;}
  .flow-grid{grid-template-columns:1fr;}
  .data-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-inner .btn{width:100%;}
  .feature-body h3{font-size:21px;}
  .faq-q{font-size:15px;padding:16px 18px;}
  .faq-a-inner{padding:14px 18px 18px;font-size:14.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  .feature-row:hover .feature-media img,.news-card:hover .news-thumb img{transform:none;}
}

/* roulang page: category3 */
:root{
  --primary:#2F6BE0;
  --primary-hover:#2557C0;
  --blue-900:#12305E;
  --blue-50:#EEF4FF;
  --page:#FFFFFF;
  --surface:#F7F9FC;
  --sand:#FAF4EA;
  --sand-line:#EADFCB;
  --ink:#16202E;
  --muted:#5D6B80;
  --line:#E5ECF6;
  --accent:#12A594;
  --warn:#E4813C;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(18,48,94,.05), 0 14px 34px -18px rgba(18,48,94,.22);
  --shadow-md:0 1px 2px rgba(18,48,94,.06), 0 22px 44px -16px rgba(18,48,94,.26);
  --font-serif:'Noto Serif SC','Songti SC','SimSun',serif;
  --font-sans:'Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--primary-hover);}
button{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:700;color:var(--blue-900);letter-spacing:-.01em;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(47,107,224,.35);outline-offset:2px;}
::selection{background:rgba(47,107,224,.16);color:var(--blue-900);}

/* ============ 容器与板块 ============ */
.grid-container{width:100%;max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px;}
.section{padding:88px 0;}
.section--surface{background:var(--surface);}
.section--sand{background:var(--sand);}
.section--line{border-top:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.1em;color:var(--primary);background:rgba(47,107,224,.08);padding:5px 12px;border-radius:999px;margin-bottom:14px;}
.eyebrow--sand{color:#9A6A22;background:rgba(228,129,60,.12);}
h2{font-size:clamp(23px,2.6vw,34px);line-height:1.3;}
h3{font-size:20px;line-height:1.45;}
.section-desc{margin-top:14px;font-size:16px;line-height:1.85;color:var(--muted);max-width:720px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1.2;
  padding:13px 22px;border-radius:var(--radius-sm);
  border:1px solid transparent;cursor:pointer;min-height:44px;text-align:center;
  transition:background .26s ease,color .26s ease,border-color .26s ease,transform .26s ease,box-shadow .26s ease;
}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);}
.btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px -12px rgba(47,107,224,.6);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-ghost{background:#fff;color:var(--primary);border-color:#CBD9EE;}
.btn-ghost:hover{background:var(--blue-50);border-color:var(--primary);color:var(--primary-hover);transform:translateY(-1px);}
.btn-ghost:active{transform:none;}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:90;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .28s ease;}
.site-header.is-scrolled{box-shadow:0 8px 26px -20px rgba(18,48,94,.55);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:12px;color:inherit;min-width:0;}
.brand:hover{color:inherit;}
.brand-mark{width:28px;height:28px;border-radius:8px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--font-serif);font-size:15px;font-weight:700;flex:0 0 28px;}
.brand-text{display:flex;flex-direction:column;justify-content:center;min-width:0;}
.brand-name{display:flex;align-items:baseline;gap:8px;font-size:19px;font-weight:700;color:var(--blue-900);line-height:1.25;letter-spacing:-.01em;white-space:nowrap;}
.brand-tag{font-size:11px;font-weight:400;color:var(--muted);letter-spacing:.04em;}
.brand-sub{display:block;font-size:11px;font-weight:400;letter-spacing:.08em;color:var(--muted);line-height:1.4;}
.header-cta{flex:0 0 auto;}
.header-cta .cta-short{display:none;}

/* ============ 分类标题带 ============ */
.cat-hero{position:relative;background:#fff;border-bottom:1px solid var(--line);padding:54px 0 48px;overflow:hidden;}
.cat-hero::before{content:"";position:absolute;right:-120px;top:-160px;width:440px;height:440px;border-radius:50%;background:radial-gradient(circle,rgba(47,107,224,.10),rgba(47,107,224,0) 70%);pointer-events:none;}
.cat-hero::after{content:"";position:absolute;right:70px;bottom:-70px;width:250px;height:250px;border-radius:50%;border:1px solid rgba(47,107,224,.14);box-shadow:0 0 0 28px rgba(47,107,224,.035),0 0 0 66px rgba(47,107,224,.02);pointer-events:none;}
.cat-hero-inner{position:relative;z-index:1;padding-left:24px;border-left:4px solid var(--primary);max-width:860px;}
.cat-badge{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--primary);background:var(--blue-50);border:1px solid #D8E5FB;border-radius:999px;padding:5px 13px;}
.cat-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);}
.cat-title{font-size:clamp(34px,4.6vw,52px);line-height:1.16;margin:16px 0 14px;}
.cat-lead{font-size:16.5px;line-height:1.9;color:var(--muted);max-width:690px;}
.cat-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{display:inline-flex;align-items:center;font-size:12.5px;font-weight:600;color:var(--blue-900);background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 13px;white-space:nowrap;}
.cat-stat{margin:18px 0 0;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.cat-note{margin:10px 0 0;font-size:12px;line-height:1.7;color:var(--muted);}

/* ============ 话题标签流 ============ */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;}
.chip{display:inline-flex;align-items:center;padding:10px 18px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--blue-900);font-size:14px;font-weight:500;transition:background .24s ease,color .24s ease,border-color .24s ease,transform .24s ease,box-shadow .24s ease;}
.chip:hover{background:var(--blue-50);border-color:#C6D9F7;color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-sm);}

/* ============ 话题卡流 ============ */
.topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.topic-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;}
.topic-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#D3E0F5;}
.topic-thumb{position:relative;overflow:hidden;background:var(--blue-50);}
.topic-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.topic-card:hover .topic-thumb img{transform:scale(1.03);}
.topic-card--large .topic-thumb{aspect-ratio:16/9;}
.topic-card--small .topic-thumb{aspect-ratio:4/3;}
.topic-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.topic-card--large .topic-body{padding:26px 28px 28px;}
.topic-kicker{font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--primary);}
.topic-title{font-family:var(--font-serif);font-size:20px;line-height:1.42;color:var(--blue-900);}
.topic-card--large .topic-title{font-size:23px;}
.topic-text{font-size:14px;line-height:1.75;color:var(--muted);}
.topic-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.topic-foot .count{color:var(--blue-900);font-weight:600;}
.topic-more{display:flex;justify-content:center;margin-top:38px;}

/* ============ 编辑精选 ============ */
.editor-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden;}
.editor-cover{width:100%;aspect-ratio:21/9;object-fit:cover;background:var(--blue-50);}
.editor-body{padding:34px 40px 38px;}
.editor-body h2{font-size:clamp(22px,2.4vw,30px);line-height:1.34;margin-bottom:14px;}
.editor-body p{font-size:16px;line-height:1.9;color:var(--muted);}
.editor-meta{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}
.editor-meta span+span::before{content:"·";margin-right:14px;color:#C3CEDD;}

/* ============ 社区规则 ============ */
.rule-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 40px;margin-top:8px;}
.rule-item{display:flex;gap:16px;background:#fff;border:1px solid var(--sand-line);border-radius:var(--radius-md);padding:22px 24px;}
.rule-no{font-family:var(--font-serif);font-size:26px;line-height:1;color:var(--warn);flex:0 0 auto;font-variant-numeric:tabular-nums;}
.rule-item h3{font-size:17px;margin-bottom:6px;}
.rule-item p{font-size:14px;line-height:1.72;color:var(--muted);}

/* ============ 活跃时段与城市榜单 ============ */
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:28px 30px 24px;height:100%;}
.panel-title{font-family:var(--font-serif);font-size:19px;color:var(--blue-900);margin-bottom:6px;}
.panel-sub{font-size:13px;color:var(--muted);margin-bottom:18px;}
.peak-row{display:grid;grid-template-columns:110px 1fr 74px;align-items:center;gap:14px;padding:10px 0;border-bottom:1px dashed var(--line);}
.peak-row:last-child{border-bottom:none;}
.peak-label{font-size:13.5px;color:var(--muted);font-variant-numeric:tabular-nums;}
.peak-bar{height:10px;background:var(--blue-50);border-radius:999px;overflow:hidden;}
.peak-bar i{display:block;height:100%;background:var(--primary);border-radius:999px;}
.peak-val{font-family:var(--font-serif);font-size:15px;color:var(--blue-900);text-align:right;font-variant-numeric:tabular-nums;}
.rank-row{display:grid;grid-template-columns:34px 64px 1fr 44px;align-items:center;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line);}
.rank-row:last-child{border-bottom:none;}
.rank-no{font-family:var(--font-serif);font-size:15px;color:var(--warn);font-variant-numeric:tabular-nums;}
.rank-city{font-size:14.5px;color:var(--blue-900);font-weight:600;}
.rank-bar{height:8px;background:var(--surface);border-radius:999px;overflow:hidden;}
.rank-bar i{display:block;height:100%;background:var(--accent);border-radius:999px;}
.rank-val{font-size:13px;color:var(--muted);text-align:right;font-variant-numeric:tabular-nums;}
.panel-note{font-size:12px;color:var(--muted);margin-top:16px;}

/* ============ 用户问答 ============ */
.qa-item{padding:28px 0;border-bottom:1px solid var(--line);}
.qa-item:last-child{border-bottom:none;padding-bottom:0;}
.qa-q{display:flex;gap:12px;font-family:var(--font-serif);font-size:19px;line-height:1.5;color:var(--blue-900);margin-bottom:10px;}
.qa-mark{flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--blue-50);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;margin-top:3px;}
.qa-a{font-size:15px;line-height:1.9;color:var(--muted);padding-left:38px;}
.qa-meta{padding-left:38px;margin-top:10px;font-size:12.5px;color:#8C99AC;}

/* ============ 相关资讯 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#D3E0F5;}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--blue-50);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:20px 22px 22px;}
.news-body h3{font-size:17px;line-height:1.5;margin-bottom:8px;}
.news-body p{font-size:13.5px;line-height:1.7;color:var(--muted);}
.news-meta{display:flex;gap:12px;margin-top:14px;font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums;}

/* ============ 细线 CTA ============ */
.cta-line{margin-top:56px;padding-top:32px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;}
.cta-line h3{font-size:20px;line-height:1.45;}
.cta-line p{font-size:14px;line-height:1.7;color:var(--muted);margin-top:6px;max-width:600px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding:64px 0 34px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-name{font-size:16px;font-weight:700;color:var(--blue-900);line-height:1.3;}
.footer-sub{font-size:11px;letter-spacing:.08em;color:var(--muted);}
.footer-text{font-size:13.5px;line-height:1.8;color:var(--muted);}
.footer-safe{font-size:12px;line-height:1.75;color:#8C99AC;margin-top:10px;}
.footer-title{font-size:14px;font-weight:700;color:var(--blue-900);margin-bottom:14px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:13.5px;color:var(--muted);}
.footer-links a:hover{color:var(--primary);}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;margin-top:44px;padding-top:20px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted);}
.footer-bottom .domain{font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.footer-disclaimer{margin:14px 0 0;font-size:12px;line-height:1.8;color:#8C99AC;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .section{padding:64px 0;}
  .cat-hero{padding:44px 0 40px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .rule-list{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr 1fr;}
  .editor-body{padding:28px 26px 30px;}
}
@media (max-width:767px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .section{padding:52px 0;}
  .header-inner{min-height:60px;}
  .header-cta .cta-full{display:none;}
  .header-cta .cta-short{display:inline;}
  .brand-name{font-size:16px;}
  .brand-sub{font-size:10px;letter-spacing:.04em;}
  .brand-tag{font-size:10px;}
  .cat-hero-inner{padding-left:16px;}
  .cat-lead{font-size:15.5px;}
  .topic-grid{grid-template-columns:1fr;}
  .topic-card--large .topic-title{font-size:20px;}
  .news-grid{grid-template-columns:1fr;}
  .peak-row{grid-template-columns:92px 1fr 60px;}
  .rank-row{grid-template-columns:28px 54px 1fr 40px;}
  .panel{padding:22px 20px 18px;}
  .qa-a,.qa-meta{padding-left:0;}
  .rule-item{padding:18px;}
  .cta-line{margin-top:40px;padding-top:26px;}
  .cta-line .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:519px){
  .brand-sub{display:none;}
  .cat-title{font-size:32px;}
  .cat-hero::after{display:none;}
  .topic-body,.topic-card--large .topic-body{padding:20px;}
  .editor-body{padding:22px 20px 24px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
  .topic-card:hover,.news-card:hover,.chip:hover,.btn:hover{transform:none!important;}
}