/* roulang page: index */
/* ================= 设计变量 ================= */
:root{
  --bg:#070E1A;
  --panel:#0C1728;
  --panel-2:#122036;
  --line:rgba(255,255,255,.06);
  --line-strong:rgba(255,255,255,.12);
  --glass:rgba(255,255,255,.06);
  --glass-2:rgba(255,255,255,.09);
  --signal:#3DDCC0;
  --signal-soft:rgba(61,220,192,.16);
  --signal-line:rgba(61,220,192,.45);
  --coral:#FF6B85;
  --amber:#FF8A5B;
  --warn:#FFB15C;
  --text:#EAF2FA;
  --text-2:#A9B8CC;
  --text-3:#6F8095;
  --inv:#06121F;
  --r-lg:22px;
  --r-card:18px;
  --r-sm:14px;
  --r-btn:12px;
  --shadow-card:0 12px 40px rgba(3,10,22,.55);
  --shadow-soft:0 6px 22px rgba(3,10,22,.4);
  --mono:"SF Mono","JetBrains Mono","Roboto Mono",Consolas,"Liberation Mono",monospace;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ================= reset / base ================= */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  text-align:left;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.026) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.026) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.6;
}
body::after{
  content:"";
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(720px 420px at 82% -6%,rgba(255,107,133,.12),transparent 62%),
    radial-gradient(820px 520px at 6% 12%,rgba(61,220,192,.10),transparent 66%);
}
header,main,footer{position:relative;z-index:1}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease)}
a:hover{color:var(--signal)}
button{font-family:inherit}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:rgba(61,220,192,.3);color:#fff}
:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:6px}

/* ================= 容器 ================= */
.container{width:100%;max-width:1200px!important;margin:0 auto;padding-left:24px!important;padding-right:24px!important}
@media (min-width:1400px){.container{max-width:1240px!important}}
@media (max-width:767px){.container{padding-left:18px!important;padding-right:18px!important}}

/* ================= 通用标题 ================= */
.sec{padding:88px 0;position:relative}
.sec--alt{background:linear-gradient(180deg,rgba(255,255,255,.018),rgba(255,255,255,0));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{margin-bottom:44px;max-width:820px}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--signal);
  padding:6px 14px;border-radius:999px;
  border:1px solid rgba(61,220,192,.3);
  background:rgba(61,220,192,.07);
  margin-bottom:16px;font-weight:600;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--signal);box-shadow:0 0 10px var(--signal);animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
h2.sec-title{
  font-size:clamp(24px,2.6vw,36px);
  line-height:1.3;font-weight:700;letter-spacing:-.01em;color:var(--text);
}
h2.sec-title em{font-style:normal;color:var(--signal)}
.sec-desc{margin-top:14px;color:var(--text-2);font-size:15.5px;line-height:1.8;max-width:760px}
.sec-head--center .sec-desc{margin-left:auto;margin-right:auto}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .26s var(--ease),border-color .24s var(--ease),color .2s var(--ease),background .24s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--coral) 0%,var(--amber) 100%);
  color:var(--inv);
  box-shadow:0 0 0 1px rgba(61,220,192,.35),0 8px 28px rgba(255,107,133,.28);
}
.btn-primary:hover{
  transform:translateY(-2px);color:var(--inv);
  box-shadow:0 0 0 1px rgba(61,220,192,.6),0 14px 38px rgba(255,107,133,.42);
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(61,220,192,.3),0 4px 14px rgba(255,107,133,.22)}
.btn-ghost{
  background:var(--glass);border-color:var(--line-strong);color:var(--text);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
}
.btn-ghost:hover{
  transform:translateY(-2px);border-color:var(--signal-line);color:var(--signal);
  box-shadow:0 0 0 1px rgba(61,220,192,.18),0 10px 26px rgba(3,10,22,.5);
}
.btn-ghost:active{transform:translateY(1px)}
.btn:disabled,.btn.is-disabled{opacity:.45;pointer-events:none;box-shadow:none}
.btn-sm{padding:9px 18px;font-size:14px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--signal);
  position:relative;
}
.text-link::after{
  content:"";position:absolute;left:0;right:14px;bottom:-3px;height:1px;
  background:currentColor;transform:scaleX(0);transform-origin:left;
  transition:transform .26s var(--ease);
}
.text-link:hover::after{transform:scaleX(1)}
.text-link:hover{color:#6ff2da}

/* ================= 徽章 ================= */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:4px 12px;border-radius:999px;line-height:1.6;
}
.badge-signal{color:var(--signal);border:1px solid rgba(61,220,192,.4);background:rgba(61,220,192,.08)}
.badge-coral{color:#FFA0B0;border:1px solid rgba(255,107,133,.45);background:rgba(255,107,133,.1)}
.badge-mute{color:var(--text-2);border:1px solid var(--line-strong);background:rgba(255,255,255,.04)}
.badge-warn{color:var(--warn);border:1px solid rgba(255,177,92,.4);background:rgba(255,177,92,.09)}

/* ================= 玻璃卡片 ================= */
.glass{
  background:var(--glass);
  border:1px solid var(--line-strong);
  border-radius:var(--r-card);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.glass:hover{
  transform:translateY(-2px);
  border-color:rgba(61,220,192,.45);
  box-shadow:0 18px 46px rgba(3,10,22,.62),0 0 0 1px rgba(61,220,192,.18),inset 0 1px 0 rgba(255,255,255,.1);
}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}

/* ================= 顶部导航 ================= */
.site-header{
  position:sticky;top:0;z-index:60;
  height:72px;display:flex;align-items:center;
  background:rgba(7,14,26,.6);
  border-bottom:1px solid transparent;
  transition:height .26s var(--ease),background .26s var(--ease),border-color .26s var(--ease),backdrop-filter .26s var(--ease);
}
.site-header.is-scrolled{
  height:64px;
  background:rgba(7,14,26,.86);
  border-bottom-color:var(--line-strong);
  -webkit-backdrop-filter:blur(16px) saturate(130%);backdrop-filter:blur(16px) saturate(130%);
}
.header-inner{display:flex;align-items:center;gap:24px;width:100%}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(255,107,133,.9),rgba(255,138,91,.85));
  box-shadow:0 0 0 1px rgba(61,220,192,.45),0 6px 20px rgba(255,107,133,.35);
  color:#0A1524;
}
.brand-mark svg{width:20px;height:20px}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:15.5px;font-weight:700;letter-spacing:.01em;color:var(--text)}
.brand-text small{font-size:11px;color:var(--text-3);letter-spacing:.16em;margin-top:3px}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav a{
  position:relative;padding:9px 14px;border-radius:10px;
  font-size:14.5px;color:var(--text-2);font-weight:500;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.main-nav a.is-active{color:var(--signal);background:rgba(61,220,192,.1)}
.main-nav a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--signal);box-shadow:0 0 10px var(--signal);
}
.header-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line-strong);color:var(--text);
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;
  transition:transform .2s var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-panel{
  display:none;position:fixed;left:0;right:0;top:64px;z-index:59;
  padding:18px;
  background:rgba(9,17,30,.97);
  border-bottom:1px solid var(--line-strong);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
}
.mobile-panel.is-open{display:block;animation:fadeDown .24s var(--ease)}
@keyframes fadeDown{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
.mobile-panel a.m-item{
  display:block;padding:13px 14px;border-radius:12px;font-size:15px;color:var(--text-2);
  border:1px solid transparent;
}
.mobile-panel a.m-item:hover,.mobile-panel a.m-item.is-active{
  color:var(--signal);background:rgba(61,220,192,.08);border-color:rgba(61,220,192,.25);
}
.mobile-panel .m-cta{display:flex;flex-direction:column;gap:10px;margin-top:14px}
.mobile-panel .m-cta .btn{width:100%}

/* ================= Hero ================= */
.hero{
  position:relative;overflow:hidden;
  padding:72px 0 84px;
  border-bottom:1px solid var(--line);
}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-size:cover;background-position:center;
  opacity:.22;
  filter:saturate(.85);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(700px 420px at 78% 18%,rgba(255,107,133,.22),transparent 66%),
    radial-gradient(760px 500px at 12% 72%,rgba(61,220,192,.16),transparent 70%),
    linear-gradient(180deg,rgba(7,14,26,.68),rgba(7,14,26,.96));
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{
  font-size:clamp(32px,4.2vw,52px);
  line-height:1.2;font-weight:700;letter-spacing:-.015em;
  margin:18px 0 16px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--signal),#7EF3D9);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  font-size:18px;color:var(--text);font-weight:600;line-height:1.6;
  padding-left:14px;border-left:3px solid var(--coral);
  margin-bottom:18px;
}
.hero-desc{color:var(--text-2);font-size:15.5px;line-height:1.85;max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:28px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.hero-metrics li{display:flex;flex-direction:column;gap:2px}
.hero-metrics .num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:24px;font-weight:700;color:var(--signal);line-height:1.2}
.hero-metrics .lbl{font-size:12.5px;color:var(--text-3);letter-spacing:.04em}

/* 卡券墙 */
.coupon-wall{position:relative;display:flex;flex-direction:column;gap:14px}
.coupon-main{
  position:relative;
  background:linear-gradient(150deg,rgba(255,255,255,.11),rgba(255,255,255,.045));
  border:1px solid rgba(61,220,192,.36);
  border-radius:var(--r-lg);
  padding:26px 26px 22px;
  -webkit-backdrop-filter:blur(16px) saturate(125%);backdrop-filter:blur(16px) saturate(125%);
  box-shadow:0 22px 60px rgba(3,10,22,.6),0 0 0 1px rgba(61,220,192,.14),inset 0 1px 0 rgba(255,255,255,.14);
  overflow:hidden;
}
.coupon-main::before,.coupon-main::after{
  content:"";position:absolute;width:22px;height:22px;border-radius:50%;
  background:var(--bg);border:1px solid rgba(61,220,192,.28);
  top:50%;transform:translateY(-50%);
}
.coupon-main::before{left:-12px}
.coupon-main::after{right:-12px}
.coupon-glow{
  position:absolute;width:220px;height:220px;border-radius:50%;
  right:-70px;top:-90px;pointer-events:none;
  background:radial-gradient(circle,rgba(255,107,133,.42),transparent 68%);
  filter:blur(14px);
}
.coupon-top{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;position:relative;z-index:1}
.coupon-amount{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:52px;font-weight:700;line-height:1;color:var(--text);letter-spacing:-.03em}
.coupon-amount span{font-size:20px;font-weight:600;color:var(--text-2);margin-left:6px;letter-spacing:0}
.coupon-name{font-size:17px;font-weight:700;margin-top:10px}
.coupon-desc{font-size:13.5px;color:var(--text-2);margin-top:4px}
.coupon-benefits{display:grid;grid-template-columns:1fr 1fr;gap:8px 16px;margin:20px 0 18px;position:relative;z-index:1}
.coupon-benefits li{font-size:13.5px;color:var(--text-2);display:flex;align-items:center;gap:7px}
.coupon-benefits li::before{
  content:"";width:14px;height:14px;border-radius:50%;flex-shrink:0;
  background:rgba(61,220,192,.16);
  border:1px solid rgba(61,220,192,.55);
  background-image:linear-gradient(135deg,transparent 45%,var(--signal) 45%,var(--signal) 55%,transparent 55%);
}
.coupon-btn{width:100%;position:relative;z-index:1}
.coupon-code{font-size:12px;color:var(--text-3);text-align:center;margin-top:12px;letter-spacing:.06em;position:relative;z-index:1}
.coupon-side{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.coupon-mini{
  background:var(--glass);border:1px dashed rgba(255,255,255,.18);
  border-radius:var(--r-sm);padding:16px 16px 14px;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  transition:border-color .24s var(--ease),transform .24s var(--ease);
}
.coupon-mini:hover{border-color:rgba(61,220,192,.5);transform:translateY(-2px)}
.coupon-mini .cm-num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:22px;font-weight:700;color:var(--signal);line-height:1.2}
.coupon-mini .cm-name{font-size:13.5px;font-weight:600;margin-top:6px}
.coupon-mini .cm-note{font-size:12px;color:var(--text-3);margin-top:2px}

/* ================= 指标看板 ================= */
.kpi-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.kpi-tabs span{
  font-size:13px;padding:6px 15px;border-radius:999px;
  border:1px solid var(--line-strong);color:var(--text-3);
  background:rgba(255,255,255,.03);cursor:default;
}
.kpi-tabs span.on{color:var(--signal);border-color:rgba(61,220,192,.45);background:rgba(61,220,192,.1)}
.kpi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.kpi-card{padding:22px;border-radius:var(--r-card)}
.kpi-card .kpi-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}
.kpi-card .kpi-name{font-size:14px;color:var(--text-2);font-weight:600}
.kpi-card .kpi-val{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:34px;font-weight:700;line-height:1.1;color:var(--text);letter-spacing:-.03em}
.kpi-card .kpi-val small{font-size:14px;color:var(--text-3);margin-left:4px;font-weight:600}
.kpi-card .kpi-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px}
.kpi-bars{display:flex;align-items:flex-end;gap:3px;height:30px}
.kpi-bars i{display:block;width:5px;border-radius:2px;background:linear-gradient(180deg,rgba(61,220,192,.9),rgba(61,220,192,.16))}
.kpi-note{margin-top:22px;font-size:12.5px;color:var(--text-3);letter-spacing:.02em}

/* ================= 服务矩阵 bento ================= */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:18px;grid-auto-rows:minmax(158px,auto)}
.bento-card{padding:24px;border-radius:var(--r-card);position:relative;overflow:hidden;display:flex;flex-direction:column}
.bento-big{grid-column:span 3;grid-row:span 2}
.bento-mid{grid-column:span 3}
.bento-sm{grid-column:span 2}
.bento-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  background:rgba(61,220,192,.1);border:1px solid rgba(61,220,192,.34);color:var(--signal);
  margin-bottom:16px;flex-shrink:0;
}
.bento-card.coral .bento-icon{background:rgba(255,107,133,.1);border-color:rgba(255,107,133,.36);color:#FF97AB}
.bento-card h3{font-size:18px;font-weight:700;line-height:1.4;margin-bottom:8px}
.bento-big h3{font-size:22px}
.bento-card p{font-size:14px;color:var(--text-2);line-height:1.75}
.bento-big p{font-size:14.5px}
.bento-big .bento-list{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.bento-big .bento-list li{font-size:13.5px;color:var(--text-2);display:flex;gap:8px;align-items:flex-start}
.bento-big .bento-list li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--signal);margin-top:9px;flex-shrink:0;box-shadow:0 0 8px var(--signal)}
.bento-card .text-link{margin-top:auto;padding-top:14px}
.bento-glow{position:absolute;right:-60px;bottom:-70px;width:200px;height:200px;border-radius:50%;background:radial-gradient(circle,rgba(61,220,192,.22),transparent 70%);pointer-events:none}

/* ================= 结果对比 ================= */
.compare{
  border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.03);
}
.compare-head,.compare-row{display:grid;grid-template-columns:1.05fr 1fr 1fr;gap:0}
.compare-head{
  background:rgba(255,255,255,.05);
  border-bottom:1px solid var(--line-strong);
  padding:14px 0;
}
.compare-head div{font-size:13px;letter-spacing:.06em;color:var(--text-3);padding:0 22px;font-weight:600}
.compare-head .head-new{color:var(--signal)}
.compare-row{border-bottom:1px solid var(--line);transition:background .22s var(--ease)}
.compare-row:last-child{border-bottom:none}
.compare-row:hover{background:rgba(61,220,192,.04)}
.compare-row>div{padding:18px 22px;font-size:14.5px;line-height:1.65}
.compare-q{font-weight:600;color:var(--text)}
.compare-old{color:var(--text-3)}
.compare-new{color:var(--text);position:relative;background:linear-gradient(90deg,rgba(61,220,192,.07),transparent)}
.compare-new::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;border-radius:2px;
  background:var(--signal);box-shadow:0 0 10px var(--signal);
}

/* ================= 场景地图 ================= */
.scene-toolbar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding:14px 18px;border-radius:var(--r-sm);
  background:var(--glass);border:1px solid var(--line-strong);
  margin-bottom:26px;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.scene-toolbar .tb-label{font-size:12.5px;color:var(--text-3);letter-spacing:.08em}
.scene-toolbar .tb-item{
  font-size:13px;padding:6px 14px;border-radius:999px;color:var(--text-2);
  border:1px solid var(--line-strong);
}
.scene-toolbar .tb-item.on{color:var(--inv);background:var(--signal);border-color:var(--signal);font-weight:600}
.scene-wall{display:flex;flex-wrap:wrap;gap:12px}
.scene-chip{
  display:inline-flex;align-items:center;gap:9px;
  padding:11px 20px;border-radius:999px;
  background:rgba(255,255,255,.045);
  border:1px solid var(--line-strong);
  font-size:14.5px;color:var(--text-2);
  transition:transform .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),background .22s var(--ease);
}
.scene-chip:hover{
  transform:translateY(-2px);
  border-color:var(--signal-line);
  color:var(--signal);
  background:rgba(61,220,192,.08);
}
.scene-chip .cnt{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:12.5px;color:var(--text-3)}
.scene-chip:hover .cnt{color:var(--signal)}

/* ================= 圈子横滑 ================= */
.rail-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px}
.circle-rail{
  display:flex;gap:18px;overflow-x:auto;padding-bottom:14px;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;scrollbar-color:rgba(61,220,192,.4) transparent;
}
.circle-rail::-webkit-scrollbar{height:6px}
.circle-rail::-webkit-scrollbar-thumb{background:rgba(61,220,192,.35);border-radius:6px}
.circle-rail::-webkit-scrollbar-track{background:rgba(255,255,255,.04);border-radius:6px}
.circle-card{
  flex:0 0 268px;scroll-snap-align:start;
  border-radius:var(--r-card);overflow:hidden;
  background:var(--glass);border:1px solid var(--line-strong);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.circle-card:hover{transform:translateY(-3px);border-color:rgba(61,220,192,.45);box-shadow:0 18px 44px rgba(3,10,22,.6)}
.circle-thumb{aspect-ratio:16/10;overflow:hidden;position:relative;background:var(--panel-2)}
.circle-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.circle-card:hover .circle-thumb img{transform:scale(1.04)}
.circle-thumb .badge-pill{position:absolute;left:12px;top:12px;background:rgba(7,14,26,.78)}
.circle-body{padding:16px 18px 18px}
.circle-body h3{font-size:16px;font-weight:700;margin-bottom:8px}
.circle-body .c-meta{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text-3)}
.circle-body .c-meta .m{font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--text-2);font-weight:600}
.rail-hint{display:none;font-size:12.5px;color:var(--text-3);margin-top:6px;letter-spacing:.04em}

/* ================= 时间轴 ================= */
.timeline{position:relative;max-width:920px;margin:0 auto;padding:10px 0}
.timeline::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;
  background:linear-gradient(180deg,transparent,rgba(61,220,192,.4) 12%,rgba(61,220,192,.4) 88%,transparent);
  transform:translateX(-.5px);
}
.tl-item{position:relative;width:50%;padding:0 44px 40px 0}
.tl-item:nth-child(even){margin-left:50%;padding:0 0 40px 44px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;right:-6px;top:9px;width:12px;height:12px;border-radius:50%;
  background:var(--signal);box-shadow:0 0 0 4px rgba(61,220,192,.14),0 0 18px rgba(61,220,192,.7);
}
.tl-item:nth-child(even) .tl-dot{right:auto;left:-6px}
.tl-card{padding:20px 22px;border-radius:var(--r-card)}
.tl-year{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:12.5px;letter-spacing:.12em;color:var(--signal);font-weight:600}
.tl-card h3{font-size:16.5px;font-weight:700;margin:8px 0 6px}
.tl-card p{font-size:13.5px;color:var(--text-2);line-height:1.7}

/* ================= 资讯列表 ================= */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{
  display:flex;flex-direction:column;border-radius:var(--r-card);overflow:hidden;
  background:var(--glass);border:1px solid var(--line-strong);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.news-card:hover{transform:translateY(-3px);border-color:rgba(61,220,192,.45);box-shadow:0 18px 46px rgba(3,10,22,.62)}
.news-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--panel-2)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.news-body h3{font-size:16.5px;font-weight:700;line-height:1.5;margin:10px 0 8px}
.news-body h3 a:hover{color:var(--signal)}
.news-body p{font-size:13.5px;color:var(--text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:12.5px;color:var(--text-3)}
.news-meta .mono{font-size:12.5px}
.news-empty{
  padding:56px 24px;text-align:center;border-radius:var(--r-card);
  background:var(--glass);border:1px dashed var(--line-strong);
}
.news-empty p{font-size:15px;color:var(--text-2)}
.news-empty .muted{font-size:13.5px;color:var(--text-3);margin-top:8px}

/* ================= 平台保障 ================= */
.trust-strip{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.trust-strip .badge-pill{font-size:13px;padding:8px 16px}
.guard-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.guard-card{display:flex;gap:16px;padding:22px;border-radius:var(--r-card)}
.guard-icon{
  width:46px;height:46px;border-radius:14px;flex-shrink:0;display:grid;place-items:center;
  background:rgba(61,220,192,.1);border:1px solid rgba(61,220,192,.32);color:var(--signal);
}
.guard-card h3{font-size:16.5px;font-weight:700;margin-bottom:6px}
.guard-card p{font-size:13.5px;color:var(--text-2);line-height:1.7}

/* ================= 用户评价 ================= */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.quote-card{
  position:relative;padding:26px 22px 22px;border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(255,255,255,.1),rgba(255,255,255,.045));
  border:1px solid rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:var(--shadow-soft);
  transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.quote-card:hover{transform:translateY(-3px);border-color:rgba(61,220,192,.4)}
.quote-card::before{
  content:"”";position:absolute;right:20px;top:2px;
  font-size:64px;line-height:1;color:rgba(61,220,192,.22);font-family:Georgia,serif;
}
.quote-user{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{
  width:44px;height:44px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(140deg,rgba(61,220,192,.35),rgba(255,107,133,.35));
  border:1px solid rgba(255,255,255,.18);
  display:grid;place-items:center;font-weight:700;font-size:15px;color:#0A1524;
}
.quote-user .q-name{font-size:14.5px;font-weight:700}
.quote-user .q-city{font-size:12.5px;color:var(--text-3)}
.stars{display:flex;gap:3px;margin-bottom:10px;color:var(--warn)}
.stars svg{width:14px;height:14px}
.quote-card p{font-size:14px;color:var(--text-2);line-height:1.75}

/* ================= 快速解答 ================= */
.quick-list{display:flex;flex-direction:column;gap:12px}
.quick-item{
  border-radius:var(--r-sm);
  background:var(--glass);border:1px solid var(--line-strong);
  overflow:hidden;
}
.quick-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--text);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.quick-item summary::-webkit-details-marker{display:none}
.quick-item summary:hover{color:var(--signal);background:rgba(61,220,192,.05)}
.quick-item summary .idx{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:13px;color:var(--signal);letter-spacing:.06em}
.quick-item summary .mark{margin-left:auto;font-family:var(--mono);font-size:18px;color:var(--text-3);transition:transform .24s var(--ease),color .24s var(--ease)}
.quick-item[open] summary .mark{transform:rotate(45deg);color:var(--signal)}
.quick-body{padding:0 22px 20px 58px;font-size:14.5px;color:var(--text-2);line-height:1.8;animation:fadeDown .26s var(--ease)}
.quick-body a{color:var(--signal);text-decoration:underline;text-underline-offset:3px}

/* ================= FAQ ================= */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:32px;align-items:start}
.faq-aside{padding:26px;border-radius:var(--r-card);position:sticky;top:92px}
.faq-aside h3{font-size:18px;font-weight:700;margin-bottom:10px}
.faq-aside p{font-size:13.5px;color:var(--text-2);line-height:1.8}
.faq-aside .aside-note{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:12.5px;color:var(--text-3)}
.faq-list{display:flex;flex-direction:column;gap:10px}
.faq-item{
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.045);
  border:1px solid var(--line-strong);
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
.faq-item[open]{border-color:rgba(61,220,192,.4);background:rgba(61,220,192,.05)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:14px;
  padding:16px 20px;font-size:17px;font-weight:600;color:var(--text);line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--signal)}
.faq-item summary .sign{
  margin-left:auto;flex-shrink:0;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--line-strong);display:grid;place-items:center;
  font-family:var(--mono);font-size:14px;color:var(--text-3);
  transition:transform .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.faq-item[open] summary .sign{transform:rotate(180deg);color:var(--signal);border-color:rgba(61,220,192,.5)}
.faq-answer{padding:0 20px 18px;font-size:14.5px;color:var(--text-2);line-height:1.8;animation:fadeDown .26s var(--ease)}

/* ================= 使用指引 ================= */
.steps-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.step-item{display:flex;gap:18px;padding:20px 0;border-bottom:1px solid var(--line)}
.step-item:last-child{border-bottom:none}
.step-num{
  width:44px;height:44px;flex-shrink:0;border-radius:50%;
  border:1px solid rgba(61,220,192,.5);
  display:grid;place-items:center;
  font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:14px;font-weight:700;color:var(--signal);
  background:rgba(61,220,192,.08);
  box-shadow:0 0 18px rgba(61,220,192,.18);
}
.step-item h3{font-size:16.5px;font-weight:700;margin-bottom:5px}
.step-item p{font-size:14px;color:var(--text-2);line-height:1.7}
.phone-mock{
  width:100%;max-width:300px;margin:0 auto;
  aspect-ratio:9/16;
  border-radius:34px;
  padding:12px;
  background:linear-gradient(160deg,rgba(255,255,255,.14),rgba(255,255,255,.04));
  border:1px solid var(--line-strong);
  box-shadow:0 26px 60px rgba(3,10,22,.65),0 0 0 1px rgba(61,220,192,.16);
}
.phone-screen{
  width:100%;height:100%;border-radius:24px;overflow:hidden;position:relative;
  background:var(--panel-2);
}
.phone-screen img{width:100%;height:100%;object-fit:cover;opacity:.88}
.phone-screen::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,14,26,.1),rgba(7,14,26,.75));
}
.phone-cap{text-align:center;font-size:12.5px;color:var(--text-3);margin-top:14px;letter-spacing:.04em}

/* ================= 权益对照 ================= */
.tier-wrap{display:grid;grid-template-columns:1fr 1fr;gap:0;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-strong)}
.tier{padding:32px 30px;background:rgba(255,255,255,.03)}
.tier + .tier{border-left:1px solid var(--line-strong);background:linear-gradient(160deg,rgba(61,220,192,.08),rgba(255,255,255,.03))}
.tier-head{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.tier-head h3{font-size:19px;font-weight:700}
.tier-sub{font-size:13.5px;color:var(--text-3);margin-bottom:22px}
.tier ul{display:flex;flex-direction:column}
.tier li{
  display:flex;align-items:flex-start;gap:10px;
  padding:12px 0;border-bottom:1px solid var(--line);
  font-size:14.5px;color:var(--text-2);line-height:1.6;
}
.tier li:last-child{border-bottom:none}
.tier li .tick{
  width:18px;height:18px;border-radius:50%;flex-shrink:0;margin-top:3px;
  display:grid;place-items:center;
  border:1px solid rgba(61,220,192,.5);background:rgba(61,220,192,.12);color:var(--signal);
}
.tier li .tick svg{width:10px;height:10px}
.tier li.off{color:var(--text-3)}
.tier li.off .tick{border-color:var(--line-strong);background:transparent;color:var(--text-3)}

/* ================= 转化表单 ================= */
.convert{
  position:relative;overflow:hidden;
  padding:88px 0;
  background:linear-gradient(180deg,rgba(255,255,255,.02),rgba(255,255,255,0));
  border-top:1px solid var(--line);
}
.convert::before{
  content:"";position:absolute;width:620px;height:620px;border-radius:50%;
  left:-180px;top:-220px;pointer-events:none;
  background:radial-gradient(circle,rgba(255,107,133,.2),transparent 66%);
  filter:blur(20px);
}
.convert::after{
  content:"";position:absolute;width:560px;height:560px;border-radius:50%;
  right:-160px;bottom:-260px;pointer-events:none;
  background:radial-gradient(circle,rgba(61,220,192,.2),transparent 68%);
  filter:blur(20px);
}
.convert-inner{position:relative;z-index:1;display:grid;grid-template-columns:.95fr 1.05fr;gap:48px;align-items:start}
.convert-copy h2{font-size:clamp(24px,2.7vw,34px);line-height:1.35;font-weight:700;margin-bottom:16px}
.convert-copy p{font-size:15px;color:var(--text-2);line-height:1.85}
.convert-points{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.convert-points li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--text-2)}
.convert-points li .tick{
  width:18px;height:18px;border-radius:50%;flex-shrink:0;margin-top:4px;
  display:grid;place-items:center;
  border:1px solid rgba(61,220,192,.5);background:rgba(61,220,192,.12);color:var(--signal);
}
.convert-points li .tick svg{width:10px;height:10px}
.form-card{
  padding:30px;border-radius:var(--r-lg);
  background:rgba(12,23,40,.78);
  border:1px solid rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(18px) saturate(125%);backdrop-filter:blur(18px) saturate(125%);
  box-shadow:0 24px 64px rgba(3,10,22,.7),inset 0 1px 0 rgba(255,255,255,.1);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group{margin-bottom:16px}
.form-label{display:block;font-size:13px;color:var(--text-2);letter-spacing:.04em;margin-bottom:7px;font-weight:600}
.form-control,.form-select{
  width:100%;
  background:rgba(255,255,255,.045);
  border:1px solid var(--line-strong);
  border-radius:var(--r-btn);
  color:var(--text);
  font-size:15px;
  padding:12px 14px;
  line-height:1.5;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
  appearance:none;
}
textarea.form-control{resize:vertical;min-height:104px}
.form-control::placeholder{color:var(--text-3)}
.form-control:focus,.form-select:focus{
  outline:none;
  background:rgba(255,255,255,.07);
  border-color:var(--signal);
  box-shadow:0 0 0 4px rgba(61,220,192,.16);
  color:var(--text);
}
.form-select{
  background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);
  background-position:calc(100% - 18px) 21px,calc(100% - 13px) 21px;
  background-size:5px 5px,5px 5px;
  background-repeat:no-repeat;
  padding-right:38px;
}
.form-select option{background:#0C1728;color:var(--text)}
.form-hint{font-size:12.5px;color:var(--text-3);line-height:1.7;margin-top:14px}
.form-status{margin-top:14px;font-size:13.5px;border-radius:10px;padding:0;transition:all .24s var(--ease)}
.form-status.is-error{padding:10px 14px;color:#FFA0B0;background:rgba(255,107,133,.1);border:1px solid rgba(255,107,133,.4)}
.form-status.is-success{padding:10px 14px;color:var(--signal);background:rgba(61,220,192,.1);border:1px solid rgba(61,220,192,.4)}
.btn-submit{width:100%;margin-top:6px}

/* ================= 页脚 ================= */
.site-footer{
  position:relative;z-index:1;
  background:#050B14;
  border-top:1px solid var(--line-strong);
  padding:64px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:48px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:13.5px;color:var(--text-3);line-height:1.8;max-width:300px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:36px;height:36px;border-radius:10px;
  display:grid;place-items:center;
  border:1px solid var(--line-strong);background:rgba(255,255,255,.04);
  color:var(--text-3);
  transition:border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.footer-social a:hover{border-color:var(--signal-line);color:var(--signal);transform:translateY(-2px)}
.footer-social svg{width:16px;height:16px}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li,.footer-col a{font-size:13.5px;color:var(--text-3);line-height:1.7}
.footer-col a:hover{color:var(--signal)}
.footer-keys{display:flex;flex-wrap:wrap;gap:8px}
.footer-keys span{
  font-size:12.5px;color:var(--text-3);
  padding:4px 10px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .mono{letter-spacing:.02em}

/* ================= 响应式 ================= */
@media (max-width:1199px){
  .hero-inner{grid-template-columns:1fr 1fr;gap:36px}
  .kpi-grid{grid-template-columns:repeat(3,1fr)}
  .quote-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:991px){
  .sec{padding:64px 0}
  .convert{padding:64px 0}
  .main-nav,.header-cta{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .hero{padding:56px 0 64px}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-desc{max-width:none}
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .bento{grid-template-columns:repeat(2,1fr);grid-auto-rows:auto}
  .bento-big,.bento-mid{grid-column:span 2;grid-row:auto}
  .bento-sm{grid-column:span 1}
  .guard-grid{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr;gap:24px}
  .faq-aside{position:static}
  .steps-layout{grid-template-columns:1fr;gap:32px}
  .phone-mock{max-width:250px}
  .convert-inner{grid-template-columns:1fr;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .timeline::before{left:8px}
  .tl-item,.tl-item:nth-child(even){width:100%;margin-left:0;padding:0 0 28px 34px}
  .tl-dot,.tl-item:nth-child(even) .tl-dot{left:2px;right:auto;top:8px}
  .compare-head,.compare-row{grid-template-columns:1fr 1fr}
  .compare-head div:first-child{display:none}
  .compare-q{grid-column:span 2;padding-bottom:6px!important}
  .compare-head{display:none}
}
@media (max-width:767px){
  .sec{padding:48px 0}
  .convert{padding:48px 0}
  .hero{padding:44px 0 52px}
  .hero h1{font-size:clamp(28px,7vw,36px)}
  .hero-sub{font-size:16px}
  .hero-metrics{gap:18px 26px}
  .kpi-grid{grid-template-columns:1fr}
  .bento{grid-template-columns:1fr}
  .bento-big,.bento-mid,.bento-sm{grid-column:span 1}
  .quote-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .tier-wrap{grid-template-columns:1fr}
  .tier + .tier{border-left:none;border-top:1px solid var(--line-strong)}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:22px}
  .coupon-benefits{grid-template-columns:1fr}
  .coupon-side{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .rail-hint{display:block}
  .compare-row{grid-template-columns:1fr;gap:8px}
  .compare-row>div{padding:12px 18px}
  .compare-q{grid-column:span 1;font-size:15px;background:rgba(255,255,255,.05);border-radius:10px}
  .compare-old::before{content:"以前的做法";display:block;font-size:11.5px;letter-spacing:.1em;color:var(--text-3);margin-bottom:3px}
  .compare-new::before{content:"在微爱社区里";display:block;font-size:11.5px;letter-spacing:.1em;color:var(--signal);margin-bottom:3px}
  .compare-new{background:rgba(61,220,192,.06);border-radius:12px}
  .compare-new::before{position:static;display:block}
  .compare-new{position:relative}
  .compare-new::after{content:"";position:absolute;left:0;top:12px;bottom:12px;width:2px;border-radius:2px;background:var(--signal)}
  .quick-body{padding-left:22px}
  .faq-item summary{font-size:15.5px;padding:14px 16px}
  .faq-answer{padding:0 16px 16px}
}
@media (max-width:520px){
  .brand-text strong{font-size:14px}
  .brand-text small{font-size:10px;letter-spacing:.1em}
  .coupon-main{padding:20px 18px}
  .coupon-amount{font-size:42px}
  .hero-actions .btn{width:100%}
  .circle-card{flex:0 0 240px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --bg:#070E1A;
  --panel:#0C1728;
  --panel-2:#122036;
  --line:rgba(255,255,255,.06);
  --line-strong:rgba(255,255,255,.12);
  --glass:rgba(255,255,255,.06);
  --glass-2:rgba(255,255,255,.09);
  --signal:#3DDCC0;
  --signal-soft:rgba(61,220,192,.16);
  --signal-line:rgba(61,220,192,.45);
  --coral:#FF6B85;
  --amber:#FF8A5B;
  --warn:#FFB15C;
  --text:#EAF2FA;
  --text-2:#A9B8CC;
  --text-3:#6F8095;
  --inv:#06121F;
  --r-lg:22px;
  --r-card:18px;
  --r-sm:14px;
  --r-btn:12px;
  --shadow-card:0 12px 40px rgba(3,10,22,.55);
  --shadow-soft:0 6px 22px rgba(3,10,22,.4);
  --mono:"SF Mono","JetBrains Mono","Roboto Mono",Consolas,"Liberation Mono",monospace;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--sans);font-size:16px;line-height:1.75;
  color:var(--text);background:var(--bg);text-align:left;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.026) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.026) 1px,transparent 1px);
  background-size:64px 64px;opacity:.6;
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(720px 420px at 82% -6%,rgba(255,107,133,.12),transparent 62%),
    radial-gradient(820px 520px at 6% 12%,rgba(61,220,192,.10),transparent 66%);
}
header,main,footer{position:relative;z-index:1}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease)}
a:hover{color:var(--signal)}
button{font-family:inherit}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.32;color:var(--text)}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(61,220,192,.28);color:#fff}
.container{width:100%;max-width:1200px!important;margin:0 auto;padding-left:24px!important;padding-right:24px!important}
@media(min-width:1400px){.container{max-width:1240px!important}}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- 通用组件 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;
  color:var(--signal);padding:6px 14px;border-radius:999px;
  border:1px solid rgba(61,220,192,.3);background:rgba(61,220,192,.07);
  margin-bottom:16px;font-weight:600;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--signal);box-shadow:0 0 10px var(--signal);animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.82)}}
.sec-title{font-size:clamp(24px,2.6vw,36px);line-height:1.3;font-weight:700;letter-spacing:-.01em}
.sec-title em{font-style:normal;color:var(--signal)}
.sec-lead{color:var(--text-2);font-size:16px;margin-top:14px;max-width:660px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .26s var(--ease),border-color .24s var(--ease),color .2s var(--ease),background .24s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--coral) 0%,var(--amber) 100%);color:var(--inv);
  box-shadow:0 0 0 1px rgba(61,220,192,.35),0 8px 28px rgba(255,107,133,.28);
}
.btn-primary:hover{transform:translateY(-2px);color:var(--inv);box-shadow:0 0 0 1px rgba(61,220,192,.6),0 14px 38px rgba(255,107,133,.42)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(61,220,192,.3),0 4px 14px rgba(255,107,133,.22)}
.btn-ghost{
  background:var(--glass);border-color:var(--line-strong);color:var(--text);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--signal-line);color:var(--signal);box-shadow:0 0 0 1px rgba(61,220,192,.18),0 10px 26px rgba(3,10,22,.5)}
.btn-ghost:active{transform:translateY(1px)}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--signal);outline-offset:3px;box-shadow:0 0 0 4px rgba(61,220,192,.18)}
.btn-sm{padding:9px 18px;font-size:14px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--signal);position:relative}
.text-link::after{content:"";position:absolute;left:0;right:14px;bottom:-3px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .26s var(--ease)}
.text-link:hover::after{transform:scaleX(1)}
.badge-pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.04em;padding:4px 12px;border-radius:999px;line-height:1.6}
.badge-signal{color:var(--signal);border:1px solid rgba(61,220,192,.4);background:rgba(61,220,192,.08)}
.badge-coral{color:#FFA0B0;border:1px solid rgba(255,107,133,.45);background:rgba(255,107,133,.1)}
.badge-mute{color:var(--text-2);border:1px solid var(--line-strong);background:rgba(255,255,255,.04)}
.badge-warn{color:var(--warn);border:1px solid rgba(255,177,92,.4);background:rgba(255,177,92,.09)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;height:72px;display:flex;align-items:center;
  background:rgba(7,14,26,.62);border-bottom:1px solid transparent;
  transition:height .26s var(--ease),background .26s var(--ease),border-color .26s var(--ease);
}
.site-header.is-scrolled{
  height:64px;background:rgba(7,14,26,.88);border-bottom-color:var(--line-strong);
  -webkit-backdrop-filter:blur(16px) saturate(130%);backdrop-filter:blur(16px) saturate(130%);
}
.header-inner{display:flex;align-items:center;gap:20px;width:100%;position:relative}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(255,107,133,.9),rgba(255,138,91,.85));
  box-shadow:0 0 0 1px rgba(61,220,192,.35),0 8px 22px rgba(255,107,133,.28);color:var(--inv);
}
.brand-mark svg{width:20px;height:20px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:700;color:var(--text);letter-spacing:.01em}
.brand-text small{font-size:11px;letter-spacing:.18em;color:var(--text-3);margin-top:3px}
.nav-panel{display:flex;align-items:center;justify-content:space-between;gap:18px;flex:1}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.main-nav a{position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:9px 13px;border-radius:10px;transition:color .2s,background .2s}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.main-nav a.is-active{color:var(--signal)}
.main-nav a.is-active::after{content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;background:var(--signal);box-shadow:0 0 10px var(--signal)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line-strong);color:var(--text);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px}
@media(min-width:992px){
  #navPanel.collapse{display:flex!important;height:auto!important;visibility:visible!important}
}
@media(max-width:991px){
  .nav-toggle{display:inline-flex}
  #navPanel{position:absolute;top:calc(100% + 10px);left:0;right:0;flex-direction:column;align-items:stretch;
    background:rgba(9,18,32,.97);border:1px solid var(--line-strong);border-radius:var(--r-card);
    padding:16px;box-shadow:var(--shadow-card);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);}
  .main-nav{flex-direction:column;align-items:stretch;gap:2px;margin:0 0 14px}
  .main-nav a{padding:12px 14px;border-radius:10px;font-size:15px}
  .main-nav a.is-active{background:rgba(61,220,192,.1)}
  .main-nav a.is-active::after{left:0;top:10px;bottom:10px;width:3px;height:auto;right:auto}
  .nav-actions{flex-direction:column;align-items:stretch;gap:10px}
  .nav-actions .btn{width:100%}
}

/* ---------- 板块骨架 ---------- */
.sec{padding:88px 0;position:relative}
.sec-tight{padding:64px 0}
.sec-alt{background:linear-gradient(180deg,rgba(255,255,255,.022),rgba(255,255,255,0));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
[id]{scroll-margin-top:132px}

/* ---------- 分类页头 ---------- */
.page-head{padding:52px 0 56px;position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.page-head::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(560px 300px at 88% -20%,rgba(255,107,133,.16),transparent 66%),
    radial-gradient(620px 340px at 4% 0%,rgba(61,220,192,.12),transparent 68%);
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;flex-wrap:wrap}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--signal)}
.crumbs .sep{color:var(--text-3);opacity:.6}
.page-head h1{font-size:clamp(30px,3.6vw,46px);line-height:1.24;letter-spacing:-.015em;max-width:15em}
.page-head h1 em{font-style:normal;color:var(--signal)}
.page-lead{color:var(--text-2);font-size:17px;margin-top:18px;max-width:34em}
.page-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.mini-card{
  background:var(--glass);border:1px solid var(--line-strong);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow-card);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-card);
}
.mini-card .mc-head{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);letter-spacing:.06em;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:6px}
.mini-card .mc-head .dot{width:7px;height:7px;border-radius:50%;background:var(--signal);box-shadow:0 0 10px var(--signal);animation:pulse 2.2s infinite}
.mini-kpi{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line)}
.mini-kpi:last-of-type{border-bottom:0}
.mini-kpi span{font-size:13px;color:var(--text-2)}
.mini-kpi b{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:24px;color:var(--text);font-weight:600}
.mini-kpi b i{font-style:normal;font-size:12px;color:var(--text-3);margin-left:3px;font-family:var(--sans)}
.mc-note{font-size:11.5px;color:var(--text-3);line-height:1.7;margin:10px 0 0}

/* ---------- 吸顶锚点条 ---------- */
.anchor-bar{
  position:sticky;top:64px;z-index:40;background:rgba(9,18,32,.9);
  border-bottom:1px solid var(--line-strong);
  -webkit-backdrop-filter:blur(16px) saturate(120%);backdrop-filter:blur(16px) saturate(120%);
}
.anchor-inner{display:flex;gap:6px;overflow-x:auto;padding:10px 0;scrollbar-width:none}
.anchor-inner::-webkit-scrollbar{display:none}
.anchor-inner a{
  flex-shrink:0;font-size:14px;font-weight:500;color:var(--text-2);
  padding:8px 14px;border-radius:999px;border:1px solid transparent;transition:.2s var(--ease);
}
.anchor-inner a:hover{color:var(--signal);border-color:var(--signal-line);background:rgba(61,220,192,.07)}
@media(max-width:767px){.anchor-bar{top:64px}}

/* ---------- 图文交替 ---------- */
.zig{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;padding:40px 0;border-top:1px solid var(--line)}
.zig:first-of-type{border-top:0;padding-top:8px}
.zig.rev .zig-media{order:2}
.media-frame{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);aspect-ratio:16/10;background:var(--panel-2);position:relative;
}
.media-frame img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease)}
.zig:hover .media-frame img,.post-card:hover .pc-media img{transform:scale(1.03)}
.zig-body h3{font-size:clamp(19px,1.7vw,23px);margin:12px 0 10px}
.zig-body p{color:var(--text-2);font-size:15.5px;margin-bottom:16px}

/* ---------- 认证清单 ---------- */
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:14px 24px;margin-top:8px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2);line-height:1.7}
.check-list .tick{
  flex-shrink:0;width:22px;height:22px;border-radius:8px;display:grid;place-items:center;margin-top:3px;
  border:1px solid rgba(61,220,192,.45);background:rgba(61,220,192,.1);color:var(--signal);
}
.check-list .tick svg{width:12px;height:12px}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.note-card{
  background:linear-gradient(160deg,rgba(61,220,192,.09),rgba(255,255,255,.03));
  border:1px solid rgba(61,220,192,.26);border-radius:var(--r-card);padding:24px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-soft);
}
.note-card h3{font-size:17px;margin-bottom:10px}
.note-card p{color:var(--text-2);font-size:14.5px;margin-bottom:8px}
.note-card .mc-note{margin-bottom:0}

/* ---------- 对比区 ---------- */
.compare{border:1px solid var(--line-strong);border-radius:var(--r-card);overflow:hidden;background:var(--glass);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}
.compare-head,.compare-row{display:grid;grid-template-columns:180px 1fr 1fr;gap:16px;align-items:center;padding:16px 22px}
.compare-head{background:rgba(255,255,255,.05);border-bottom:1px solid var(--line-strong);font-size:12px;letter-spacing:.08em;color:var(--text-3)}
.compare-row{border-bottom:1px solid var(--line);font-size:15px}
.compare-row:last-child{border-bottom:0}
.compare-row:hover{background:rgba(61,220,192,.04)}
.cmp-key{color:var(--text);font-weight:600;font-size:14.5px}
.cmp-old{color:var(--text-3)}
.cmp-new{color:var(--text);position:relative;padding-left:18px}
.cmp-new::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:50%;background:var(--signal);box-shadow:0 0 10px rgba(61,220,192,.8)}
.pill-mute{display:inline-flex;padding:3px 12px;border-radius:999px;border:1px solid var(--line-strong);color:var(--text-2);font-size:12px}
.pill-signal{display:inline-flex;padding:3px 12px;border-radius:999px;border:1px solid rgba(61,220,192,.45);color:var(--signal);background:rgba(61,220,192,.08);font-size:12px}
@media(max-width:767px){
  .compare-head{display:none}
  .compare-row{grid-template-columns:1fr;gap:8px;padding:18px}
  .cmp-old::before{content:"通用方式 · ";color:var(--text-3);font-size:12px;letter-spacing:.06em}
  .cmp-new::before{display:none}
  .cmp-new{padding-left:0}
  .cmp-new::after{content:"微爱社区 · ";color:var(--signal);font-size:12px;letter-spacing:.06em}
}

/* ---------- 文章卡 ---------- */
.post-card{
  height:100%;display:flex;flex-direction:column;background:var(--glass);
  border:1px solid var(--line-strong);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-soft);transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .28s var(--ease);
}
.post-card:hover{transform:translateY(-3px);border-color:var(--signal-line);box-shadow:0 0 0 1px rgba(61,220,192,.2),0 16px 40px rgba(3,10,22,.6)}
.pc-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.pc-body h3{font-size:17px;line-height:1.5;font-weight:600}
.pc-body h3 a:hover{color:var(--signal)}
.pc-body p{font-size:14px;color:var(--text-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pc-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:12.5px;color:var(--text-3)}
.pc-foot .mono{letter-spacing:.02em}
.empty-card{
  border:1px dashed var(--line-strong);border-radius:var(--r-card);padding:44px 24px;text-align:center;
  background:var(--glass);
}
.empty-card .dot-ic{width:46px;height:46px;border-radius:14px;margin:0 auto 14px;display:grid;place-items:center;background:rgba(61,220,192,.1);border:1px solid rgba(61,220,192,.3);color:var(--signal)}
.empty-card .dot-ic svg{width:22px;height:22px}
.empty-card p{color:var(--text-2);font-size:14.5px;margin-bottom:16px}

/* ---------- 误区卡 ---------- */
.tip-card{
  height:100%;padding:24px;border-radius:var(--r-card);
  background:linear-gradient(165deg,rgba(255,107,133,.08),rgba(255,255,255,.03));
  border:1px solid rgba(255,107,133,.28);box-shadow:var(--shadow-soft);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.tip-card:hover{transform:translateY(-3px);border-color:rgba(255,107,133,.55)}
.tip-ic{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;margin-bottom:14px;background:rgba(255,107,133,.14);border:1px solid rgba(255,107,133,.4);color:#FFA0B0}
.tip-ic svg{width:20px;height:20px}
.tip-card h3{font-size:16.5px;margin-bottom:8px}
.tip-card p{font-size:14.5px;color:var(--text-2);margin-bottom:10px}
.tip-card p:last-child{margin-bottom:0}
.tip-card .fix{color:var(--text);font-size:14.5px;padding-left:14px;position:relative}
.tip-card .fix::before{content:"";position:absolute;left:0;top:.7em;width:5px;height:5px;border-radius:50%;background:var(--signal)}

/* ---------- FAQ ---------- */
.faq-aside{
  background:var(--glass);border:1px solid var(--line-strong);border-radius:var(--r-card);padding:24px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-soft);
}
.faq-aside h3{font-size:17px;margin-bottom:10px}
.faq-aside p{font-size:14px;color:var(--text-2);margin-bottom:16px}
.faq-aside .thumb{border-radius:var(--r-sm);overflow:hidden;aspect-ratio:16/10;border:1px solid var(--line);margin-bottom:16px}
.faq-aside .thumb img{width:100%;height:100%;object-fit:cover}
.accordion-item{background:var(--glass)!important;border:1px solid var(--line-strong)!important;border-radius:var(--r-sm)!important;margin-bottom:12px;overflow:hidden}
.accordion-item:last-child{margin-bottom:0}
.accordion-button{
  background:transparent!important;color:var(--text)!important;font-size:16.5px!important;font-weight:600!important;
  padding:18px 20px!important;box-shadow:none!important;border-radius:var(--r-sm)!important;line-height:1.55;
  display:flex;align-items:center;gap:12px;
}
.accordion-button:not(.collapsed){color:var(--signal)!important;background:rgba(61,220,192,.06)!important}
.accordion-button::after{display:none!important}
.accordion-button .sign{margin-left:auto;font-family:var(--mono);font-size:19px;color:var(--signal);line-height:1;flex-shrink:0}
.accordion-button .sign::before{content:"+"}
.accordion-button:not(.collapsed) .sign::before{content:"−"}
.accordion-button:focus{box-shadow:none!important;outline:2px solid var(--signal);outline-offset:-2px}
.accordion-body{padding:0 20px 20px!important;color:var(--text-2);font-size:15px;line-height:1.85}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-top:1px solid var(--line-strong);
  background:radial-gradient(700px 320px at 70% 0%,rgba(255,107,133,.16),transparent 66%),
             radial-gradient(620px 320px at 10% 110%,rgba(61,220,192,.14),transparent 70%),
             #0A1524;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:8px}
.cta-inner p{color:var(--text-2);margin:0;font-size:15px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:#050B14;border-top:1px solid var(--line-strong);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.footer-brand p{color:var(--text-3);font-size:14px;margin:16px 0 18px;max-width:30em}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--line-strong);color:var(--text-2);transition:.22s var(--ease);
}
.footer-social a:hover{color:var(--signal);border-color:var(--signal-line);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(61,220,192,.2)}
.footer-social svg{width:17px;height:17px}
.footer-col h4{font-size:14px;letter-spacing:.1em;color:var(--text);margin-bottom:16px}
.footer-col ul li{font-size:14px;color:var(--text-3);margin-bottom:10px}
.footer-col ul li a{color:var(--text-2)}
.footer-col ul li a:hover{color:var(--signal)}
.footer-keys{display:flex;flex-wrap:wrap;gap:8px}
.footer-keys span{font-size:12.5px;color:var(--text-3);padding:4px 10px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.03)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:22px 0;font-size:13px;color:var(--text-3);
}
.footer-bottom .mono{color:var(--text-3)}

/* ---------- 响应式 ---------- */
@media(max-width:1199px){
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
}
@media(max-width:991px){
  .sec{padding:64px 0}
  .sec-tight{padding:48px 0}
  .zig{grid-template-columns:1fr;gap:24px;padding:32px 0}
  .zig.rev .zig-media{order:0}
  .check-list{grid-template-columns:1fr}
  .page-head{padding:40px 0 44px}
  .page-head h1{max-width:100%}
  .cta-inner{padding:44px 0}
}
@media(max-width:767px){
  .sec{padding:48px 0}
  .container{padding-left:18px!important;padding-right:18px!important}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-header{height:64px}
  .brand-text strong{font-size:15px}
  .badge-row{gap:8px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
}
@media(max-width:520px){
  .page-actions .btn{width:100%}
  .mini-kpi b{font-size:21px}
  .pc-body{padding:18px}
  .anchor-inner a{font-size:13px;padding:7px 12px}
}

/* roulang page: article */
:root{
  --bg:#070E1A;
  --panel:#0C1728;
  --panel-2:#122036;
  --line:rgba(255,255,255,.06);
  --line-strong:rgba(255,255,255,.12);
  --glass:rgba(255,255,255,.06);
  --glass-2:rgba(255,255,255,.09);
  --signal:#3DDCC0;
  --signal-soft:rgba(61,220,192,.16);
  --signal-line:rgba(61,220,192,.45);
  --coral:#FF6B85;
  --amber:#FF8A5B;
  --warn:#FFB15C;
  --text:#EAF2FA;
  --text-2:#A9B8CC;
  --text-3:#6F8095;
  --inv:#06121F;
  --r-lg:22px;
  --r-card:18px;
  --r-sm:14px;
  --r-btn:12px;
  --shadow-card:0 12px 40px rgba(3,10,22,.55);
  --shadow-soft:0 6px 22px rgba(3,10,22,.4);
  --mono:"SF Mono","JetBrains Mono","Roboto Mono",Consolas,"Liberation Mono",monospace;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--sans);font-size:16px;line-height:1.75;
  color:var(--text);background:var(--bg);text-align:left;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.026) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.026) 1px,transparent 1px);
  background-size:64px 64px;opacity:.6;
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(720px 420px at 82% -6%,rgba(255,107,133,.12),transparent 62%),
    radial-gradient(820px 520px at 6% 12%,rgba(61,220,192,.10),transparent 66%);
}
header,main,footer{position:relative;z-index:1}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease)}
a:hover{color:var(--signal)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--signal);outline-offset:3px;box-shadow:0 0 0 4px rgba(61,220,192,.18);border-radius:8px}
.container{width:100%;max-width:1240px!important;margin:0 auto;padding-left:24px!important;padding-right:24px!important}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;letter-spacing:.01em;
  cursor:pointer;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .26s var(--ease),border-color .24s var(--ease),color .2s var(--ease),background .24s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--coral) 0%,var(--amber) 100%);
  color:var(--inv);
  box-shadow:0 0 0 1px rgba(61,220,192,.35),0 8px 28px rgba(255,107,133,.28);
}
.btn-primary:hover{transform:translateY(-2px);color:var(--inv);box-shadow:0 0 0 1px rgba(61,220,192,.6),0 14px 38px rgba(255,107,133,.42)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(61,220,192,.3),0 4px 14px rgba(255,107,133,.22)}
.btn-ghost{
  background:var(--glass);border-color:var(--line-strong);color:var(--text);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--signal-line);color:var(--signal);box-shadow:0 0 0 1px rgba(61,220,192,.18),0 10px 26px rgba(3,10,22,.5)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn:disabled,.btn.is-disabled{opacity:.45;pointer-events:none;box-shadow:none}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--signal);position:relative}
.text-link::after{content:"";position:absolute;left:0;right:14px;bottom:-3px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .26s var(--ease)}
.text-link:hover::after{transform:scaleX(1)}
.text-link:hover{color:#6ff2da}
/* ============ 徽章 ============ */
.badge-pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.04em;padding:4px 12px;border-radius:999px;line-height:1.6}
.badge-signal{color:var(--signal);border:1px solid rgba(61,220,192,.4);background:rgba(61,220,192,.08)}
.badge-coral{color:#FFA0B0;border:1px solid rgba(255,107,133,.45);background:rgba(255,107,133,.1)}
.badge-mute{color:var(--text-2);border:1px solid var(--line-strong);background:rgba(255,255,255,.04)}
.badge-warn{color:var(--warn);border:1px solid rgba(255,177,92,.4);background:rgba(255,177,92,.09)}
/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;height:72px;display:flex;align-items:center;
  background:rgba(7,14,26,.6);border-bottom:1px solid transparent;
  transition:height .26s var(--ease),background .26s var(--ease),border-color .26s var(--ease);
}
.site-header.is-scrolled{
  height:64px;background:rgba(7,14,26,.9);border-bottom-color:var(--line-strong);
  -webkit-backdrop-filter:blur(16px) saturate(130%);backdrop-filter:blur(16px) saturate(130%);
}
.header-inner{display:flex;align-items:center;gap:20px;width:100%}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--coral),var(--amber));color:var(--inv);
  box-shadow:0 6px 18px rgba(255,107,133,.32);
}
.brand-mark svg{width:19px;height:19px;fill:none;stroke:currentColor}
.brand-text strong{display:block;font-size:16px;font-weight:700;letter-spacing:.01em;line-height:1.3}
.brand-text small{display:block;font-size:11px;letter-spacing:.18em;color:var(--text-3);line-height:1.4}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav a{
  padding:8px 14px;border-radius:10px;font-size:15px;color:var(--text-2);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.main-nav a:hover{color:var(--text);background:var(--glass)}
.main-nav a.is-active{color:var(--signal);background:rgba(61,220,192,.1)}
.header-cta{display:flex;align-items:center;gap:10px;margin-left:8px}
.nav-toggle{
  display:none;margin-left:auto;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line-strong);background:var(--glass);color:var(--text);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--signal-line);color:var(--signal)}
.mobile-panel{
  position:absolute;top:100%;left:0;right:0;z-index:70;
  background:rgba(9,17,30,.98);border-bottom:1px solid var(--line-strong);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
}
.mobile-panel .container{padding-top:14px;padding-bottom:20px}
.mobile-panel .mp-link{display:block;padding:12px 14px;border-radius:12px;color:var(--text-2);font-size:15px}
.mobile-panel .mp-link:hover,.mobile-panel .mp-link.is-active{background:var(--glass);color:var(--signal)}
.mobile-cta{display:grid;gap:10px;margin-top:14px}
.mobile-cta .btn{width:100%}
/* ============ 文章头部 ============ */
.art-hero{padding:48px 0 36px;position:relative;overflow:hidden}
.art-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(620px 320px at 78% -18%,rgba(61,220,192,.14),transparent 68%);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;position:relative}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--signal)}
.crumbs .sep{opacity:.45}
.crumbs .crumb-cur{color:var(--signal)}
.hero-badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;position:relative}
.article-h1{
  font-size:clamp(28px,3.6vw,46px);line-height:1.26;font-weight:700;letter-spacing:-.01em;
  margin:0;max-width:940px;overflow-wrap:break-word;word-break:break-word;position:relative;
}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 26px;font-size:13px;color:var(--text-3);margin-top:22px;position:relative}
.article-meta b{color:var(--text-2);font-weight:600}
.article-cover{
  margin-top:34px;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line-strong);box-shadow:var(--shadow-card);aspect-ratio:16/7;background:var(--panel-2);
}
.article-cover img{width:100%;height:100%;object-fit:cover}
/* ============ 通用板块 ============ */
.art-section{padding:60px 0;border-top:1px solid var(--line);position:relative}
.art-section--alt{background:linear-gradient(180deg,rgba(12,23,40,.82),rgba(7,14,26,0))}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.sec-head h2{font-size:clamp(20px,2.2vw,28px);line-height:1.35;font-weight:700;margin:0;letter-spacing:-.01em}
.sec-head p{margin:8px 0 0;font-size:14.5px;color:var(--text-2)}
.glass{
  background:var(--glass);border:1px solid var(--line-strong);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
}
/* ============ 关键要点 ============ */
.key-card{padding:28px 30px 26px;position:relative;overflow:hidden}
.key-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(180deg,var(--signal),rgba(61,220,192,.15));
}
.key-card h2{font-size:20px;margin:0 0 6px;font-weight:700}
.key-card .key-sub{font-size:13.5px;color:var(--text-3);margin:0 0 18px}
.key-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.key-list li{
  display:grid;grid-template-columns:22px 1fr;gap:12px;align-items:start;
  font-size:15px;color:var(--text-2);line-height:1.8;
}
.key-list li .idx{
  font-family:var(--mono);font-size:13px;color:var(--signal);
  border:1px solid rgba(61,220,192,.35);border-radius:8px;text-align:center;line-height:22px;
}
.key-list li b{color:var(--text);font-weight:600}
.pull-quote{
  margin:26px 0 0;padding:20px 24px;border-radius:var(--r-sm);
  border-left:3px solid var(--amber);background:rgba(255,255,255,.05);
}
.pull-quote blockquote{margin:0;font-size:15.5px;line-height:1.85;color:var(--text)}
.pull-quote figcaption{margin-top:10px;font-size:12.5px;color:var(--text-3);letter-spacing:.03em}
/* ============ 阅读布局 ============ */
.read-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
.read-main{min-width:0}
.prose{font-size:16.5px;line-height:1.9;color:#DCE7F4;max-width:760px;text-align:left}
.prose>*:first-child{margin-top:0}
.prose p{margin:0 0 1.4em}
.prose h2{
  font-size:clamp(20px,2.2vw,26px);line-height:1.42;font-weight:700;color:var(--text);
  margin:2.1em 0 .8em;padding-left:14px;border-left:4px solid var(--signal);
}
.prose h3{font-size:19px;line-height:1.5;font-weight:700;color:var(--text);margin:1.8em 0 .6em}
.prose h4{font-size:17px;font-weight:600;color:var(--text);margin:1.6em 0 .5em}
.prose ul,.prose ol{margin:0 0 1.4em;padding-left:1.35em}
.prose li{margin-bottom:.5em}
.prose li::marker{color:var(--signal)}
.prose a{color:var(--signal);border-bottom:1px solid rgba(61,220,192,.35);transition:border-color .22s var(--ease),color .2s var(--ease)}
.prose a:hover{border-bottom-color:var(--signal);color:#6ff2da}
.prose blockquote{
  margin:1.6em 0;padding:16px 22px;color:var(--text-2);
  border-left:3px solid var(--signal);background:rgba(255,255,255,.05);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:var(--r-sm);border:1px solid var(--line-strong);margin:1.5em 0 .6em}
.prose figcaption{font-size:13px;color:var(--text-3);line-height:1.7}
.prose hr{border:0;border-top:1px solid var(--line-strong);margin:2em 0}
.prose table{width:100%;border-collapse:collapse;font-size:14.5px;margin:1.5em 0;border-radius:var(--r-sm);overflow:hidden}
.prose th{background:rgba(255,255,255,.07);color:var(--text);font-weight:600;text-align:left}
.prose th,.prose td{border:1px solid var(--line-strong);padding:10px 14px;vertical-align:top}
.prose code{font-family:var(--mono);font-size:13.5px;background:rgba(255,255,255,.09);padding:2px 6px;border-radius:6px;color:#9BF2E2}
.prose pre{background:#0A1424;border:1px solid var(--line-strong);border-radius:var(--r-sm);padding:16px 18px;overflow-x:auto;margin:1.5em 0}
.prose pre code{background:none;padding:0;color:#C8D8EA}
.empty-card{padding:36px 32px;border-radius:var(--r-card);background:var(--glass);border:1px solid var(--line-strong);box-shadow:var(--shadow-card);max-width:640px}
.empty-card h2{font-size:22px;margin:16px 0 10px}
.empty-card p{color:var(--text-2);font-size:15px;margin:0 0 20px}
/* ============ 侧栏 ============ */
.read-side{display:grid;gap:16px;position:sticky;top:96px}
.side-card{padding:20px 22px;border-radius:var(--r-card);background:var(--glass);border:1px solid var(--line-strong);box-shadow:var(--shadow-soft);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}
.side-card h3{font-size:14px;letter-spacing:.08em;color:var(--text-3);font-weight:600;margin:0 0 14px}
.toc-list{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.toc-list a{display:block;padding:8px 10px;border-radius:9px;font-size:14px;color:var(--text-2);border-left:2px solid transparent;transition:all .2s var(--ease)}
.toc-list a:hover{background:var(--glass-2);color:var(--signal);border-left-color:var(--signal);transform:translateX(2px)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud span{font-size:12.5px;color:var(--text-2);padding:4px 11px;border-radius:999px;border:1px solid var(--line-strong);background:rgba(255,255,255,.04);transition:all .2s var(--ease)}
.tag-cloud span:hover{color:var(--signal);border-color:var(--signal-line)}
/* ============ 作者声明 ============ */
.author-bar{display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:center;padding:24px 26px}
.avatar{width:60px;height:60px;border-radius:50%;overflow:hidden;border:1px solid var(--signal-line);box-shadow:0 0 0 4px rgba(61,220,192,.08);background:var(--panel-2)}
.avatar img{width:100%;height:100%;object-fit:cover}
.author-bar strong{display:block;font-size:16px;margin-bottom:4px}
.author-bar p{margin:0;font-size:13.5px;color:var(--text-2);line-height:1.75}
.disclaim{margin-top:14px;font-size:12.5px;color:var(--text-3);line-height:1.8}
/* ============ 关键词速览 ============ */
.mini-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.mini-card{padding:22px 22px 20px;border-radius:var(--r-card);background:var(--glass);border:1px solid var(--line-strong);box-shadow:var(--shadow-soft);transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease)}
.mini-card:hover{transform:translateY(-3px);border-color:var(--signal-line);box-shadow:0 16px 40px rgba(3,10,22,.6)}
.mini-card h3{font-size:16.5px;margin:14px 0 8px;font-weight:700}
.mini-card p{margin:0;font-size:13.8px;color:var(--text-2);line-height:1.8}
.mini-icon{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;color:var(--signal);border:1px solid rgba(61,220,192,.35);background:rgba(61,220,192,.09)}
.mini-icon svg{width:19px;height:19px;fill:none;stroke:currentColor}
/* ============ 相关推荐 ============ */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rel-card{
  display:flex;flex-direction:column;border-radius:var(--r-card);overflow:hidden;
  background:var(--glass);border:1px solid var(--line-strong);box-shadow:var(--shadow-soft);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.rel-card:hover{transform:translateY(-3px);border-color:var(--signal-line);box-shadow:0 16px 40px rgba(3,10,22,.6)}
.rel-cover{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--panel-2)}
.rel-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.rel-card:hover .rel-cover img{transform:scale(1.03)}
.rel-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.rel-body h3{font-size:16px;line-height:1.55;margin:0;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-body p{margin:0;font-size:13.4px;color:var(--text-3);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:6px;font-size:12.5px;color:var(--text-3)}
.rel-foot .mono{color:var(--text-3)}
.rel-foot a{color:var(--signal);font-weight:600}
.rel-empty{padding:30px 26px;border-radius:var(--r-card);background:var(--glass);border:1px dashed var(--line-strong);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px}
.rel-empty p{margin:0;font-size:14.5px;color:var(--text-2)}
/* ============ 上下篇 ============ */
.nav-pair{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.pair-card{
  display:flex;align-items:center;gap:14px;padding:20px 22px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line-strong);box-shadow:var(--shadow-soft);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.pair-card:hover{transform:translateY(-2px);border-color:var(--signal-line);color:inherit}
.pair-card .dir{font-family:var(--mono);font-size:12px;color:var(--signal);letter-spacing:.08em}
.pair-card strong{display:block;font-size:15.5px;margin-top:2px}
.pair-card small{display:block;font-size:12.5px;color:var(--text-3);margin-top:4px}
.pair-foot{margin-top:22px}
/* ============ CTA 条 ============ */
.cta-strip{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid rgba(61,220,192,.28);
  background:linear-gradient(120deg,rgba(18,32,54,.95),rgba(12,23,40,.92));
  box-shadow:0 20px 60px rgba(3,10,22,.6);
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-strip::before{
  content:"";position:absolute;width:340px;height:340px;right:-80px;top:-140px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,133,.24),transparent 68%);pointer-events:none;
}
.cta-strip h2{font-size:clamp(20px,2.2vw,26px);margin:0 0 8px;font-weight:700;position:relative}
.cta-strip p{margin:0;font-size:14.5px;color:var(--text-2);max-width:52ch;position:relative}
/* ============ 页脚 ============ */
.site-footer{background:#050B14;border-top:1px solid var(--line-strong);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1.2fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--text-2);font-size:14px;line-height:1.8;margin:0 0 20px;max-width:36em}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:38px;height:38px;border-radius:11px;border:1px solid var(--line-strong);
  background:var(--glass);display:grid;place-items:center;color:var(--text-2);
  transition:transform .22s var(--ease),color .2s var(--ease),border-color .22s var(--ease);
}
.footer-social a:hover{transform:translateY(-2px);color:var(--signal);border-color:var(--signal-line)}
.footer-social svg{width:17px;height:17px;fill:none;stroke:currentColor}
.footer-col h4{font-size:14px;letter-spacing:.06em;color:var(--text);margin:0 0 16px;font-weight:700}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-col ul li{font-size:13.5px;color:var(--text-2);line-height:1.7}
.footer-col ul a{color:var(--text-2)}
.footer-col ul a:hover{color:var(--signal)}
.footer-keys{display:flex;flex-wrap:wrap;gap:8px}
.footer-keys span{font-size:12.5px;color:var(--text-2);padding:4px 10px;border-radius:999px;border:1px solid var(--line-strong);background:rgba(255,255,255,.04)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding:22px 0;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
/* ============ 断点 ============ */
@media (max-width:1199px){
  .read-layout{grid-template-columns:minmax(0,1fr) 268px;gap:36px}
}
@media (max-width:991px){
  .main-nav,.header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .site-header{height:64px}
  .art-hero{padding:36px 0 28px}
  .art-section{padding:48px 0}
  .read-layout{grid-template-columns:1fr;gap:32px}
  .read-side{position:static;grid-template-columns:1fr 1fr;display:grid}
  .mini-grid{grid-template-columns:1fr 1fr}
  .rel-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .article-cover{aspect-ratio:16/9;margin-top:26px}
  .cta-strip{padding:28px 24px}
}
@media (max-width:767px){
  .container{padding-left:18px!important;padding-right:18px!important}
  .brand-text small{display:none}
  .article-h1{font-size:clamp(24px,6.4vw,32px)}
  .article-meta{gap:8px 18px;font-size:12.5px}
  .read-side{grid-template-columns:1fr}
  .mini-grid{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .nav-pair{grid-template-columns:1fr}
  .key-card{padding:22px 20px}
  .prose{font-size:16px;line-height:1.85}
  .author-bar{grid-template-columns:1fr;text-align:left}
  .cta-strip{flex-direction:column;align-items:flex-start}
  .cta-strip .btn{width:100%}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{font-size:12px}
  .art-section{padding:40px 0}
  .rel-empty{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --bg:#070E1A;
  --panel:#0C1728;
  --panel-2:#122036;
  --line:rgba(255,255,255,.06);
  --line-strong:rgba(255,255,255,.12);
  --glass:rgba(255,255,255,.06);
  --glass-2:rgba(255,255,255,.09);
  --signal:#3DDCC0;
  --signal-soft:rgba(61,220,192,.16);
  --signal-line:rgba(61,220,192,.45);
  --coral:#FF6B85;
  --amber:#FF8A5B;
  --warn:#FFB15C;
  --text:#EAF2FA;
  --text-2:#A9B8CC;
  --text-3:#6F8095;
  --inv:#06121F;
  --r-lg:22px;
  --r-card:18px;
  --r-sm:14px;
  --r-btn:12px;
  --shadow-card:0 12px 40px rgba(3,10,22,.55);
  --shadow-soft:0 6px 22px rgba(3,10,22,.4);
  --mono:"SF Mono","JetBrains Mono","Roboto Mono",Consolas,"Liberation Mono",monospace;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  text-align:left;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.026) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.026) 1px,transparent 1px);
  background-size:64px 64px;opacity:.6;
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(720px 420px at 84% -8%,rgba(255,107,133,.12),transparent 62%),
    radial-gradient(820px 520px at 4% 14%,rgba(61,220,192,.10),transparent 66%);
}
header,main,footer{position:relative;z-index:1}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease)}
a:hover{color:var(--signal)}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:-.01em;color:var(--text)}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--signal);outline-offset:3px;box-shadow:0 0 0 4px rgba(61,220,192,.22);border-radius:6px}
.container{width:100%;max-width:1200px!important;margin:0 auto;padding-left:24px;padding-right:24px}
@media(min-width:1400px){.container{max-width:1240px!important}}
@media(max-width:575px){.container{padding-left:18px;padding-right:18px}}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.01em}
.ico{width:1em;height:1em;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}

/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,14,26,.62);
  border-bottom:1px solid transparent;
  transition:background .26s var(--ease),border-color .26s var(--ease),backdrop-filter .26s var(--ease),height .26s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,14,26,.9);
  border-bottom-color:var(--line-strong);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  backdrop-filter:blur(16px) saturate(130%);
}
.header-inner{display:flex;align-items:center;gap:24px;min-height:72px}
.site-header.is-scrolled .header-inner{min-height:64px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;text-decoration:none}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(255,107,133,.9),rgba(255,138,91,.9));
  color:var(--inv);font-size:18px;
  box-shadow:0 0 0 1px rgba(61,220,192,.3),0 6px 18px rgba(255,107,133,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--text)}
.brand-text small{font-size:11px;letter-spacing:.14em;color:var(--text-3);margin-top:3px}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav a{
  position:relative;padding:8px 14px;border-radius:999px;
  font-size:14.5px;font-weight:500;color:var(--text-2);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.main-nav a.is-active{color:var(--signal);background:rgba(61,220,192,.1)}
.main-nav a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--signal);box-shadow:0 0 10px rgba(61,220,192,.7);
}
.header-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;margin-left:auto;width:42px;height:42px;border-radius:12px;cursor:pointer;
  background:var(--glass);border:1px solid var(--line-strong);color:var(--text);
  align-items:center;justify-content:center;font-size:20px;
}
.mobile-panel{
  display:none;padding:14px 0 22px;border-top:1px solid var(--line);
  background:rgba(9,17,30,.98);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
}
.mobile-panel.is-open{display:block}
.mobile-panel a.m-link{
  display:block;padding:13px 6px;border-bottom:1px solid var(--line);
  font-size:16px;color:var(--text-2);
}
.mobile-panel a.m-link.is-active{color:var(--signal)}
.mobile-panel .m-cta{display:grid;gap:10px;margin-top:18px}
.mobile-panel .m-cta .btn{width:100%}
@media(max-width:991px){
  .main-nav,.header-cta{display:none!important}
  .nav-toggle{display:flex}
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;text-decoration:none;
  transition:transform .18s var(--ease),box-shadow .26s var(--ease),border-color .24s var(--ease),color .2s var(--ease),background .24s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--coral) 0%,var(--amber) 100%);
  color:var(--inv);
  box-shadow:0 0 0 1px rgba(61,220,192,.35),0 8px 28px rgba(255,107,133,.28);
}
.btn-primary:hover{
  transform:translateY(-2px);color:var(--inv);
  box-shadow:0 0 0 1px rgba(61,220,192,.6),0 14px 38px rgba(255,107,133,.42);
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(61,220,192,.3),0 4px 14px rgba(255,107,133,.22)}
.btn-ghost{
  background:var(--glass);border-color:var(--line-strong);color:var(--text);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
}
.btn-ghost:hover{
  transform:translateY(-2px);border-color:var(--signal-line);color:var(--signal);
  box-shadow:0 0 0 1px rgba(61,220,192,.18),0 10px 26px rgba(3,10,22,.5);
}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--signal);position:relative}
.text-link::after{
  content:"";position:absolute;left:0;right:14px;bottom:-3px;height:1px;background:currentColor;
  transform:scaleX(0);transform-origin:left;transition:transform .26s var(--ease);
}
.text-link:hover::after{transform:scaleX(1)}
.text-link:hover{color:#6ff2da}

/* ===== 徽章 / 标签 ===== */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:4px 12px;border-radius:999px;line-height:1.6;
}
.badge-signal{color:var(--signal);border:1px solid rgba(61,220,192,.4);background:rgba(61,220,192,.08)}
.badge-coral{color:#FFA0B0;border:1px solid rgba(255,107,133,.45);background:rgba(255,107,133,.1)}
.badge-mute{color:var(--text-2);border:1px solid var(--line-strong);background:rgba(255,255,255,.04)}
.badge-warn{color:var(--warn);border:1px solid rgba(255,177,92,.4);background:rgba(255,177,92,.09)}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 15px;border-radius:999px;font-size:13.5px;color:var(--text-2);
  border:1px solid var(--line-strong);background:rgba(255,255,255,.04);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.chip:hover{color:var(--signal);border-color:var(--signal-line);background:rgba(61,220,192,.08);transform:translateY(-2px)}

/* ===== 板块 ===== */
.sec{padding:88px 0;position:relative}
.sec--alt{background:linear-gradient(180deg,rgba(12,23,40,.9),rgba(7,14,26,0))}
.sec--edge{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:38px;flex-wrap:wrap}
.sec-head .lead{max-width:560px;color:var(--text-2);font-size:15.5px;margin:12px 0 0}
h2.sec-title{font-size:clamp(24px,2.6vw,36px);letter-spacing:-.01em}
h2.sec-title em{font-style:normal;color:var(--signal)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--signal);font-weight:600;
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
  border:1px solid rgba(61,220,192,.3);background:rgba(61,220,192,.07);
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--signal);box-shadow:0 0 10px var(--signal)}

/* ===== 分类页头（居中） ===== */
.cat-hero{
  position:relative;overflow:hidden;
  padding:96px 0 76px;text-align:center;
  border-bottom:1px solid var(--line);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:url('/assets/images/4e5a88f94edd9237.webp') center/cover no-repeat;
  opacity:.14;
  -webkit-mask-image:radial-gradient(70% 80% at 50% 20%,#000 0%,transparent 78%);
  mask-image:radial-gradient(70% 80% at 50% 20%,#000 0%,transparent 78%);
}
.cat-hero .container{position:relative;z-index:1}
.crumb{display:flex;justify-content:center;gap:10px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--signal)}
.cat-hero h1{
  font-size:clamp(30px,4.2vw,52px);
  line-height:1.22;letter-spacing:-.015em;font-weight:700;
  max-width:900px;margin:0 auto;
}
.cat-hero h1 em{font-style:normal;background:linear-gradient(120deg,#3DDCC0,#FF8A5B);-webkit-background-clip:text;background-clip:text;color:transparent}
.cat-hero .kicker{
  max-width:720px;margin:20px auto 0;color:var(--text-2);font-size:16.5px;
}
.hero-chips{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin:26px auto 0;max-width:860px}
.search-mock{
  display:flex;align-items:center;gap:12px;
  max-width:520px;margin:30px auto 0;padding:13px 18px;
  border-radius:var(--r-btn);
  background:var(--glass);border:1px solid var(--line-strong);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  color:var(--text-3);font-size:14.5px;text-align:left;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.search-mock .ico{color:var(--signal);font-size:17px}
.search-mock kbd{
  margin-left:auto;font-family:var(--mono);font-size:11.5px;
  padding:3px 8px;border-radius:6px;color:var(--text-2);
  border:1px solid var(--line-strong);background:rgba(255,255,255,.05);
}
.hero-stats{
  display:flex;justify-content:center;flex-wrap:wrap;gap:14px;margin-top:34px;
}
.hero-stat{
  min-width:150px;padding:14px 20px;border-radius:var(--r-sm);
  background:var(--glass);border:1px solid var(--line-strong);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
}
.hero-stat b{display:block;font-family:var(--mono);font-size:26px;color:var(--signal);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-stat span{font-size:12.5px;color:var(--text-3);letter-spacing:.04em}

/* ===== 圈子墙 ===== */
.circle-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.circle-card{
  display:flex;flex-direction:column;gap:10px;min-height:142px;
  padding:18px;border-radius:var(--r-sm);
  background:var(--glass);border:1px solid var(--line-strong);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .22s var(--ease),border-color .24s var(--ease),box-shadow .26s var(--ease),background .24s var(--ease);
}
.circle-card:hover{
  transform:translateY(-3px);
  border-color:var(--signal-line);
  background:var(--glass-2);
  box-shadow:0 12px 30px rgba(3,10,22,.5),0 0 0 1px rgba(61,220,192,.18);
}
.circle-ico{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:rgba(61,220,192,.1);border:1px solid rgba(61,220,192,.28);
  color:var(--signal);font-size:19px;
}
.circle-card h3{font-size:15.5px;font-weight:600;margin-top:2px}
.circle-card .num{font-family:var(--mono);font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;margin-top:auto}
.circle-card .num b{color:var(--text-2);font-weight:600}

/* ===== 社区规范 ===== */
.rule-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.rule-card{
  display:flex;gap:18px;padding:24px;
  border-radius:var(--r-card);background:var(--glass);
  border:1px solid var(--line-strong);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-soft);
  transition:transform .22s var(--ease),border-color .24s var(--ease),box-shadow .26s var(--ease);
}
.rule-card:hover{transform:translateY(-3px);border-color:var(--signal-line);box-shadow:var(--shadow-card)}
.rule-idx{
  font-family:var(--mono);font-size:14px;font-weight:700;color:var(--signal);
  width:42px;height:42px;flex-shrink:0;display:grid;place-items:center;
  border-radius:12px;border:1px solid rgba(61,220,192,.35);
  background:rgba(61,220,192,.08);
  box-shadow:0 0 18px rgba(61,220,192,.14);
}
.rule-card h3{font-size:17px;margin-bottom:6px}
.rule-card p{margin:0;color:var(--text-2);font-size:14.5px;line-height:1.75}
.report-bar{
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  margin-top:18px;padding:18px 22px;border-radius:var(--r-sm);
  background:linear-gradient(90deg,rgba(255,107,133,.12),rgba(255,138,91,.05));
  border:1px solid rgba(255,107,133,.3);
}
.report-bar .ico{font-size:22px;color:var(--coral)}
.report-bar p{margin:0;font-size:14.5px;color:var(--text-2)}
.report-bar p b{color:var(--text)}

/* ===== 热门话题 ===== */
.topic-list{
  border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line-strong);background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-soft);
}
.topic-row{
  display:flex;align-items:center;gap:18px;
  padding:17px 22px;border-bottom:1px solid var(--line);
  transition:background .22s var(--ease),padding-left .22s var(--ease);
}
.topic-row:last-child{border-bottom:0}
.topic-row:hover{background:rgba(61,220,192,.07);padding-left:26px}
.topic-row:hover .topic-name{color:var(--signal)}
.topic-idx{font-family:var(--mono);font-size:13.5px;color:var(--signal);font-variant-numeric:tabular-nums;width:28px;flex-shrink:0}
.topic-name{font-size:15.5px;font-weight:600;color:var(--text);transition:color .2s var(--ease)}
.topic-count{margin-left:auto;font-family:var(--mono);font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;flex-shrink:0}
.topic-arrow{color:var(--text-3);font-size:16px;flex-shrink:0}
@media(max-width:767px){
  .topic-row{gap:12px;padding:15px 16px}
  .topic-count{display:none}
}

/* ===== 栏目卡 ===== */
.col-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.col-card{
  border-radius:var(--r-card);overflow:hidden;
  background:var(--glass);border:1px solid var(--line-strong);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-soft);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .26s var(--ease);
  display:flex;flex-direction:column;
}
.col-card:hover{transform:translateY(-4px);border-color:var(--signal-line);box-shadow:var(--shadow-card)}
.col-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--panel-2)}
.col-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.col-card:hover .thumb img{transform:scale(1.04)}
.col-card .body{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1}
.col-card h3{font-size:16.5px}
.col-card p{font-size:14px;color:var(--text-2);line-height:1.7;margin:0}

/* ===== 数据看板 ===== */
.dash-wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.dash-card{
  padding:22px;border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(255,255,255,.075),rgba(255,255,255,.03));
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-soft);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  transition:transform .22s var(--ease),border-color .24s var(--ease);
}
.dash-card:hover{transform:translateY(-3px);border-color:var(--signal-line)}
.dash-card .label{font-size:13px;color:var(--text-3);letter-spacing:.04em}
.dash-card .val{font-family:var(--mono);font-size:32px;color:var(--text);font-variant-numeric:tabular-nums;line-height:1.25;margin-top:6px}
.dash-card .val small{font-size:14px;color:var(--text-3);margin-left:4px;font-family:var(--sans)}
.dash-card .trend{margin-top:10px;font-size:12.5px;color:var(--signal)}
.bar-group{margin-top:22px;padding:24px;border-radius:var(--r-card);background:var(--panel);border:1px solid var(--line)}
.bar-row{display:grid;grid-template-columns:130px 1fr 64px;align-items:center;gap:16px;margin-bottom:16px}
.bar-row:last-child{margin-bottom:0}
.bar-row .name{font-size:14px;color:var(--text-2)}
.bar-track{height:8px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden}
.bar-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--signal),#7CF2DE);box-shadow:0 0 14px rgba(61,220,192,.4)}
.bar-row .num{font-family:var(--mono);font-size:13px;color:var(--text-3);text-align:right;font-variant-numeric:tabular-nums}
@media(max-width:767px){
  .bar-row{grid-template-columns:96px 1fr;gap:10px}
  .bar-row .num{display:none}
}

/* ===== 文章推荐 ===== */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.post-card{
  display:flex;flex-direction:column;border-radius:var(--r-card);overflow:hidden;
  background:var(--glass);border:1px solid var(--line-strong);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-soft);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .26s var(--ease);
}
.post-card:hover{transform:translateY(-4px);border-color:var(--signal-line);box-shadow:var(--shadow-card)}
.post-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--panel-2)}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.post-card:hover .thumb img{transform:scale(1.04)}
.post-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card h3 a{color:var(--text)}
.post-card h3 a:hover{color:var(--signal)}
.post-card .sum{font-size:14px;color:var(--text-2);line-height:1.72;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:10px;border-top:1px solid var(--line)}
.post-meta .date{font-family:var(--mono);font-size:12.5px;color:var(--text-3);font-variant-numeric:tabular-nums}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:56px 24px;text-align:center;border-radius:var(--r-card);
  background:var(--glass);border:1px dashed var(--line-strong);color:var(--text-2);
}
.empty-state .ico{font-size:34px;color:var(--signal);opacity:.8}

/* ===== FAQ ===== */
.faq-wrap{display:grid;grid-template-columns:320px 1fr;gap:36px;align-items:start}
.faq-aside{
  padding:26px;border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(61,220,192,.1),rgba(255,255,255,.03));
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-soft);position:sticky;top:96px;
}
.faq-aside h3{font-size:18px;margin-bottom:10px}
.faq-aside p{font-size:14px;color:var(--text-2);line-height:1.75;margin:0 0 16px}
.faq .accordion-item{
  background:var(--glass);border:1px solid var(--line-strong);
  border-radius:var(--r-sm)!important;margin-bottom:12px;overflow:hidden;
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  transition:border-color .24s var(--ease),box-shadow .26s var(--ease);
}
.faq .accordion-item:hover{border-color:rgba(61,220,192,.34)}
.faq .accordion-button{
  background:transparent;color:var(--text);font-size:17px;font-weight:600;
  padding:18px 20px;box-shadow:none!important;line-height:1.55;
}
.faq .accordion-button:not(.collapsed){color:var(--signal);background:rgba(61,220,192,.055)}
.faq .accordion-button::after{
  content:"+";background-image:none!important;
  width:28px;height:28px;display:grid;place-items:center;flex-shrink:0;
  font-family:var(--mono);font-size:19px;line-height:1;color:var(--signal);
  border:1px solid var(--signal-line);border-radius:8px;transform:none;
}
.faq .accordion-button:not(.collapsed)::after{content:"−";transform:none}
.faq .accordion-body{padding:4px 20px 20px;color:var(--text-2);font-size:14.8px;line-height:1.85}

/* ===== 底部 CTA ===== */
.cta-band{padding:0 0 96px}
.cta-card{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:44px 44px;border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(255,107,133,.16),rgba(61,220,192,.1) 60%,rgba(255,255,255,.04));
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);
  -webkit-backdrop-filter:blur(16px) saturate(120%);backdrop-filter:blur(16px) saturate(120%);
}
.cta-card::before{
  content:"";position:absolute;width:320px;height:320px;right:-80px;top:-140px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,138,91,.35),transparent 68%);filter:blur(18px);
}
.cta-card h2{font-size:clamp(22px,2.4vw,30px);position:relative;z-index:1}
.cta-card p{margin:10px 0 0;color:var(--text-2);font-size:15px;max-width:560px;position:relative;z-index:1}
.cta-card .btn{position:relative;z-index:1}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;padding:64px 0 0;border-top:1px solid var(--line);
  background:linear-gradient(180deg,#08111F,#050B14);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;padding-bottom:44px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.8;max-width:340px;margin:0 0 18px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--line-strong);color:var(--text-2);font-size:16px;
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.footer-social a:hover{color:var(--signal);border-color:var(--signal-line);transform:translateY(-2px)}
.footer-col h4{font-size:14px;letter-spacing:.06em;color:var(--text);margin-bottom:16px;font-weight:600}
.footer-col ul li{font-size:14px;color:var(--text-3);line-height:1.9;margin-bottom:8px}
.footer-col ul li a{color:var(--text-2)}
.footer-col ul li a:hover{color:var(--signal)}
.footer-keys{display:flex;flex-wrap:wrap;gap:8px}
.footer-keys span{
  font-size:12.5px;color:var(--text-3);padding:4px 11px;border-radius:999px;
  border:1px solid var(--line-strong);background:rgba(255,255,255,.03);
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 26px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.footer-bottom .mono{font-size:12.5px;letter-spacing:.04em}

/* ===== 响应式 ===== */
@media(max-width:1199px){
  .circle-grid{grid-template-columns:repeat(3,1fr)}
  .col-grid{grid-template-columns:repeat(2,1fr)}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:991px){
  .sec{padding:64px 0}
  .cat-hero{padding:70px 0 60px}
  .rule-grid{grid-template-columns:1fr}
  .dash-wrap{grid-template-columns:1fr 1fr}
  .faq-wrap{grid-template-columns:1fr;gap:24px}
  .faq-aside{position:static}
  .cta-band{padding:0 0 72px}
  .cta-card{padding:34px 28px}
  .post-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:767px){
  .sec{padding:48px 0}
  .cat-hero{padding:56px 0 48px}
  .cat-hero .kicker{font-size:15px}
  .circle-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .circle-card{min-height:132px;padding:15px}
  .col-grid,.dash-wrap{grid-template-columns:1fr}
  .post-grid{grid-template-columns:1fr}
  .sec-head{margin-bottom:26px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .hero-stat{min-width:calc(50% - 7px);flex:1}
  .bar-group{padding:18px}
  .cta-card{padding:28px 22px}
  .cta-card .btn{width:100%}
}
@media(max-width:520px){
  .circle-grid{grid-template-columns:1fr}
  .hero-chips{gap:8px}
  .chip{font-size:12.5px;padding:6px 12px}
  .faq .accordion-button{font-size:15.5px;padding:15px 16px}
  .faq .accordion-body{padding:2px 16px 16px;font-size:14px}
  .rule-card{padding:18px;gap:14px}
  .footer-bottom{font-size:12px}
}

/* roulang page: category2 */
:root{
  --bg:#070E1A;
  --panel:#0C1728;
  --panel-2:#122036;
  --line:rgba(255,255,255,.06);
  --line-strong:rgba(255,255,255,.12);
  --glass:rgba(255,255,255,.06);
  --glass-2:rgba(255,255,255,.09);
  --signal:#3DDCC0;
  --signal-soft:rgba(61,220,192,.16);
  --signal-line:rgba(61,220,192,.45);
  --coral:#FF6B85;
  --amber:#FF8A5B;
  --warn:#FFB15C;
  --text:#EAF2FA;
  --text-2:#A9B8CC;
  --text-3:#6F8095;
  --inv:#06121F;
  --r-lg:22px;
  --r-card:18px;
  --r-sm:14px;
  --r-btn:12px;
  --shadow-card:0 12px 40px rgba(3,10,22,.55);
  --shadow-soft:0 6px 22px rgba(3,10,22,.4);
  --mono:"SF Mono","JetBrains Mono","Roboto Mono",Consolas,"Liberation Mono",monospace;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:92px}
body{
  margin:0;font-family:var(--sans);font-size:16px;line-height:1.75;color:var(--text);
  background:var(--bg);text-align:left;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.026) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.026) 1px,transparent 1px);
  background-size:64px 64px;opacity:.6;
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(720px 420px at 84% -8%,rgba(255,107,133,.12),transparent 62%),
    radial-gradient(820px 520px at 4% 10%,rgba(61,220,192,.10),transparent 66%);
}
header,main,footer{position:relative;z-index:1}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.3}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
img{max-width:100%;display:block;height:auto}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease)}
a:hover{color:var(--signal)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--signal);outline-offset:3px;box-shadow:0 0 0 4px rgba(61,220,192,.18)}
.container{width:100%;max-width:1200px!important;margin:0 auto;padding-left:24px!important;padding-right:24px!important}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
/* ============ 通用文本组件 ============ */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--signal);font-weight:600;
  padding:6px 14px;border-radius:999px;border:1px solid rgba(61,220,192,.3);
  background:rgba(61,220,192,.07);margin-bottom:16px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--signal);box-shadow:0 0 10px var(--signal);animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.55;transform:scale(.8)}}
.sec-title{font-size:clamp(24px,2.6vw,34px);color:var(--text)}
.sec-title em{font-style:normal;color:var(--signal)}
.sec-sub{color:var(--text-2);font-size:15.5px;margin-top:12px;max-width:70ch}
.sec-head{margin-bottom:40px;max-width:800px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head.center .sec-sub{margin-left:auto;margin-right:auto}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  line-height:1.2;letter-spacing:.01em;border:1px solid transparent;cursor:pointer;
  white-space:nowrap;transition:transform .18s var(--ease),box-shadow .26s var(--ease),border-color .24s var(--ease),color .2s var(--ease),background .24s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--coral) 0%,var(--amber) 100%);
  color:var(--inv)!important;
  box-shadow:0 0 0 1px rgba(61,220,192,.35),0 8px 28px rgba(255,107,133,.28);
}
.btn-primary:hover{transform:translateY(-2px);color:var(--inv)!important;box-shadow:0 0 0 1px rgba(61,220,192,.6),0 14px 38px rgba(255,107,133,.42)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(61,220,192,.3),0 4px 14px rgba(255,107,133,.22)}
.btn-ghost{
  background:var(--glass);border-color:var(--line-strong);color:var(--text)!important;
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--signal-line);color:var(--signal)!important;box-shadow:0 0 0 1px rgba(61,220,192,.18),0 10px 26px rgba(3,10,22,.5)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.btn:disabled,.btn.is-disabled{opacity:.45;pointer-events:none;box-shadow:none}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--signal);position:relative}
.text-link svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2}
.text-link::after{content:"";position:absolute;left:0;right:16px;bottom:-3px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .26s var(--ease)}
.text-link:hover::after{transform:scaleX(1)}
.text-link:hover{color:#6ff2da}
/* ============ 徽章 ============ */
.badge-pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.04em;padding:4px 12px;border-radius:999px;line-height:1.6}
.badge-signal{color:var(--signal);border:1px solid rgba(61,220,192,.4);background:rgba(61,220,192,.08)}
.badge-coral{color:#FFA0B0;border:1px solid rgba(255,107,133,.45);background:rgba(255,107,133,.1)}
.badge-mute{color:var(--text-2);border:1px solid var(--line-strong);background:rgba(255,255,255,.04)}
.badge-warn{color:var(--warn);border:1px solid rgba(255,177,92,.4);background:rgba(255,177,92,.09)}
/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,14,26,.72);
  -webkit-backdrop-filter:blur(16px) saturate(130%);backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid var(--line);
  transition:background .26s var(--ease),border-color .26s var(--ease);
}
.site-header.is-scrolled{background:rgba(7,14,26,.92);border-bottom-color:var(--line-strong)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--coral),var(--amber));color:var(--inv);
  box-shadow:0 0 0 1px rgba(61,220,192,.35),0 8px 22px rgba(255,107,133,.3);
}
.brand-mark svg{width:19px;height:19px;fill:none;stroke:#06121F;stroke-width:1.9}
.brand-text strong{display:block;font-size:16px;font-weight:700;line-height:1.25;letter-spacing:-.01em}
.brand-text small{display:block;font-size:11px;letter-spacing:.14em;color:var(--text-3);line-height:1.6}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:4px}
.main-nav a{
  padding:8px 14px;border-radius:999px;font-size:14.5px;font-weight:500;color:var(--text-2);
  transition:color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.main-nav a.is-active{color:var(--signal);background:rgba(61,220,192,.1);box-shadow:inset 0 0 0 1px rgba(61,220,192,.3)}
.header-cta{display:flex;align-items:center;gap:10px;margin-left:6px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line-strong);
  background:var(--glass);color:var(--text);align-items:center;justify-content:center;margin-left:auto;
}
.nav-toggle svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.9}
.mobile-panel{border-top:1px solid var(--line);padding:14px 0 20px}
.mobile-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:14px}
.mobile-nav a{padding:12px 14px;border-radius:12px;font-size:15.5px;color:var(--text-2);background:rgba(255,255,255,.03)}
.mobile-nav a.is-active{color:var(--signal);background:rgba(61,220,192,.1)}
.mobile-cta{display:flex;flex-direction:column;gap:10px}
.mobile-cta .btn{width:100%}
/* ============ 区块 ============ */
.section{padding:88px 0;position:relative}
.section + .section{border-top:1px solid var(--line)}
.section--alt{background:linear-gradient(180deg,rgba(12,23,40,.78),rgba(7,14,26,.1))}
.section--deep{background:linear-gradient(180deg,rgba(6,12,22,.9),rgba(7,14,26,.35))}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--signal)}
.crumb span.sep{color:var(--text-3);opacity:.7}
/* ============ 板块1 分类页头 ============ */
.cat-hero{padding:64px 0 84px;position:relative;overflow:hidden}
.cat-hero::after{
  content:"";position:absolute;right:-160px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,133,.20),transparent 66%);filter:blur(10px);pointer-events:none;
}
.cat-hero-grid{display:grid;grid-template-columns:1.32fr .88fr;gap:48px;align-items:center;position:relative}
.cat-hero h1{font-size:clamp(30px,4vw,50px);font-weight:700;letter-spacing:-.015em;line-height:1.16;margin-bottom:18px}
.cat-hero h1 em{font-style:normal;color:var(--signal)}
.cat-hero-lead{color:var(--text-2);font-size:16.5px;max-width:56ch;margin-bottom:24px}
.city-pills{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:28px}
.city-pill{
  font-size:13.5px;font-weight:500;color:var(--text-2);padding:7px 15px;border-radius:999px;
  border:1px solid var(--line-strong);background:rgba(255,255,255,.04);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.city-pill:hover{color:var(--signal);border-color:var(--signal-line);background:rgba(61,220,192,.08);transform:translateY(-1px)}
.city-pill.is-on{color:var(--signal);border-color:var(--signal-line);background:rgba(61,220,192,.12)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line-strong);background:rgba(255,255,255,.06);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.hero-card-media{position:relative;aspect-ratio:16/10;overflow:hidden}
.hero-card-media img{width:100%;height:100%;object-fit:cover;filter:saturate(1.05)}
.hero-card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,14,26,.1),rgba(7,14,26,.85))}
.hero-card-tag{position:absolute;left:16px;top:16px;z-index:2}
.hero-card-body{padding:20px 22px 24px;position:relative;z-index:2;margin-top:-46px}
.hero-card-body h2{font-size:17px;margin-bottom:4px}
.hero-card-body .hint{font-size:13px;color:var(--text-3);margin-bottom:16px}
.mini-kpi{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.mini-kpi div{background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:var(--r-sm);padding:10px 12px}
.mini-kpi b{display:block;font-family:var(--mono);font-size:19px;color:var(--signal);line-height:1.3;font-variant-numeric:tabular-nums}
.mini-kpi span{font-size:11.5px;color:var(--text-3);display:block;line-height:1.5}
/* ============ 板块2 城市覆盖网格 ============ */
.city-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.city-card{
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);border-radius:var(--r-card);
  padding:18px 18px 16px;min-height:132px;display:flex;flex-direction:column;gap:10px;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .26s var(--ease);
}
.city-card:hover{transform:translateY(-2px);border-color:var(--signal-line);box-shadow:0 0 0 1px rgba(61,220,192,.16),0 14px 34px rgba(3,10,22,.55)}
.city-card-top{display:flex;align-items:center;justify-content:space-between;gap:8px}
.city-name{font-size:16.5px;font-weight:700}
.city-num{font-family:var(--mono);font-size:22px;color:var(--text);line-height:1.2;font-variant-numeric:tabular-nums}
.city-num small{font-size:11.5px;color:var(--text-3);font-family:var(--sans);margin-left:4px}
.city-bar{height:4px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;margin-top:auto}
.city-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--signal),rgba(61,220,192,.35))}
.note-line{margin-top:22px;font-size:12.5px;color:var(--text-3);display:flex;align-items:flex-start;gap:8px}
.note-line svg{width:14px;height:14px;flex-shrink:0;margin-top:4px;fill:none;stroke:currentColor;stroke-width:2}
/* ============ 板块3 同城场景 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.scene-card{
  display:grid;grid-template-columns:132px 1fr;gap:16px;align-items:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);border-radius:var(--r-card);
  padding:14px;transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .26s var(--ease);
}
.scene-card:hover{transform:translateY(-2px);border-color:var(--signal-line);box-shadow:0 12px 34px rgba(3,10,22,.55)}
.scene-thumb{aspect-ratio:1/1;border-radius:var(--r-sm);overflow:hidden;border:1px solid var(--line);background:var(--panel-2)}
.scene-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.scene-card:hover .scene-thumb img{transform:scale(1.04)}
.scene-card h3{font-size:17.5px;margin-bottom:6px}
.scene-card p{font-size:14px;color:var(--text-2);margin-bottom:0}
.scene-meta{font-size:12px;color:var(--text-3);margin-top:8px;display:flex;gap:10px;flex-wrap:wrap}
/* ============ 板块4 附近与兴趣 ============ */
.flow-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.flow-steps{display:flex;flex-direction:column;gap:18px}
.flow-step{display:grid;grid-template-columns:48px 1fr;gap:16px;align-items:start}
.flow-num{
  width:48px;height:48px;border-radius:50%;display:grid;place-items:center;
  font-family:var(--mono);font-size:15px;font-weight:700;color:var(--signal);
  border:1px solid rgba(61,220,192,.45);background:rgba(61,220,192,.08);
  box-shadow:0 0 18px rgba(61,220,192,.16);
}
.flow-step h3{font-size:17px;margin-bottom:5px}
.flow-step p{font-size:14px;color:var(--text-2);margin-bottom:0}
.flow-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-strong);box-shadow:var(--shadow-card)}
.flow-visual img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover}
.flow-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,14,26,.05),rgba(7,14,26,.55))}
.float-chip{
  position:absolute;z-index:3;background:rgba(10,20,34,.86);border:1px solid var(--line-strong);
  border-radius:var(--r-sm);padding:9px 13px;font-size:12.5px;color:var(--text-2);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:0 8px 24px rgba(3,10,22,.55);display:flex;align-items:center;gap:8px;
}
.float-chip b{font-family:var(--mono);color:var(--signal);font-size:14px}
.float-chip.c1{left:16px;top:16px}
.float-chip.c2{right:16px;top:44%}
.float-chip.c3{left:24px;bottom:18px}
/* ============ 板块5 数据长条 ============ */
.metric-strip{display:flex;flex-direction:column;gap:12px}
.metric-row{
  display:grid;grid-template-columns:1.15fr 1fr auto;gap:20px;align-items:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);border-radius:var(--r-sm);
  padding:18px 22px;transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.metric-row:hover{border-color:var(--signal-line);transform:translateY(-2px)}
.metric-label{font-size:15px;font-weight:600;display:flex;align-items:center;gap:10px;color:var(--text)}
.metric-label svg{width:17px;height:17px;fill:none;stroke:var(--signal);stroke-width:1.8;flex-shrink:0}
.metric-desc{font-size:13px;color:var(--text-3);margin-top:2px;font-weight:400}
.metric-value{font-family:var(--mono);font-size:28px;font-variant-numeric:tabular-nums;color:var(--text);line-height:1.1}
.metric-value small{font-size:12px;color:var(--text-3);font-family:var(--sans);margin-left:5px}
/* ============ 板块6 用户故事 ============ */
.story-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.story-card{
  background:rgba(255,255,255,.055);border:1px solid var(--line-strong);border-radius:var(--r-card);
  padding:24px 22px;position:relative;transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .26s var(--ease);
}
.story-card:hover{transform:translateY(-3px);border-color:var(--signal-line);box-shadow:0 16px 40px rgba(3,10,22,.55)}
.story-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.story-avatar{width:52px;height:52px;border-radius:50%;overflow:hidden;border:1px solid rgba(61,220,192,.35);flex-shrink:0}
.story-avatar img{width:100%;height:100%;object-fit:cover}
.story-name{font-size:15px;font-weight:700;line-height:1.4}
.story-city{font-size:12.5px;color:var(--text-3)}
.story-card p{font-size:14px;color:var(--text-2);line-height:1.8}
.story-tag{margin-top:14px;display:flex;gap:8px;flex-wrap:wrap}
/* ============ 板块7 同城观察列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.news-card{
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .26s var(--ease);
}
.news-card:hover{transform:translateY(-3px);border-color:var(--signal-line);box-shadow:0 16px 40px rgba(3,10,22,.55)}
.news-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--panel-2)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{font-size:16.5px;line-height:1.5}
.news-body h3 a:hover{color:var(--signal)}
.news-body p{font-size:13.5px;color:var(--text-2);line-height:1.75;margin:0}
.news-meta{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:12.5px;color:var(--text-3);display:flex;justify-content:space-between;gap:10px}
.empty-card{
  border:1px dashed rgba(255,255,255,.16);border-radius:var(--r-card);padding:44px 24px;text-align:center;
  background:rgba(255,255,255,.035);display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-card .ico{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;background:rgba(61,220,192,.1);border:1px solid rgba(61,220,192,.3)}
.empty-card .ico svg{width:26px;height:26px;fill:none;stroke:var(--signal);stroke-width:1.7}
.empty-card p{color:var(--text-2);font-size:14.5px;margin:0}
/* ============ 板块8 同城礼仪 ============ */
.tip-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.tip-item{
  display:flex;align-items:flex-start;gap:12px;padding:16px 18px;
  border:1px solid var(--line-strong);border-radius:var(--r-sm);background:rgba(255,255,255,.045);
  transition:border-color .22s var(--ease),background .22s var(--ease),transform .22s var(--ease);
}
.tip-item:hover{border-color:var(--signal-line);background:rgba(61,220,192,.07);transform:translateY(-2px)}
.tip-item .idx{font-family:var(--mono);font-size:13px;color:var(--signal);border:1px solid rgba(61,220,192,.4);border-radius:8px;padding:2px 8px;flex-shrink:0;margin-top:2px}
.tip-item h3{font-size:15px;margin-bottom:4px}
.tip-item p{font-size:13.5px;color:var(--text-2);margin:0;line-height:1.7}
/* ============ 板块9 FAQ ============ */
.faq-layout{display:grid;grid-template-columns:.8fr 1.6fr;gap:40px;align-items:start}
.faq-aside{
  position:sticky;top:96px;background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
  border-radius:var(--r-card);padding:24px 22px;
}
.faq-aside h3{font-size:17px;margin-bottom:10px}
.faq-aside p{font-size:14px;color:var(--text-2);margin-bottom:16px}
.faq-aside .mini-kpi{grid-template-columns:1fr 1fr}
.faq .accordion-item{
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong)!important;
  border-radius:var(--r-sm)!important;margin-bottom:12px;overflow:hidden;
}
.faq .accordion-item:hover{border-color:rgba(61,220,192,.35)!important}
.faq .accordion-button{
  background:transparent!important;color:var(--text)!important;font-size:16.5px;font-weight:600;
  padding:18px 22px;box-shadow:none!important;display:flex;align-items:center;gap:12px;line-height:1.55;
}
.faq .accordion-button:not(.collapsed){color:var(--signal)!important;background:rgba(61,220,192,.07)!important}
.faq .accordion-button::after{
  content:"+";font-family:var(--mono);font-size:20px;font-weight:400;line-height:1;
  background-image:none!important;width:auto!important;height:auto!important;transform:none!important;
  color:var(--signal);margin-left:auto;padding-left:12px;
}
.faq .accordion-button:not(.collapsed)::after{content:"−";transform:none!important}
.faq .accordion-button:focus{box-shadow:none!important;border-color:transparent!important}
.faq .accordion-body{padding:0 22px 20px;color:var(--text-2);font-size:14.5px;line-height:1.85}
.faq .accordion-button>span{flex:1}
/* ============ 板块10 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid rgba(61,220,192,.28);
  background:
    radial-gradient(560px 260px at 12% 0%,rgba(255,107,133,.20),transparent 62%),
    radial-gradient(620px 300px at 92% 110%,rgba(61,220,192,.20),transparent 66%),
    rgba(255,255,255,.05);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  padding:44px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--shadow-card);
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:8px}
.cta-band p{color:var(--text-2);font-size:15px;margin:0;max-width:60ch}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0}
/* ============ 页脚 ============ */
.site-footer{background:#050B14;border-top:1px solid var(--line);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:13.5px;color:var(--text-3);line-height:1.8;max-width:36ch}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line-strong);background:rgba(255,255,255,.04);color:var(--text-2);
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.footer-social a svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8}
.footer-social a:hover{color:var(--signal);border-color:var(--signal-line);transform:translateY(-2px)}
.footer-col h4{font-size:14px;letter-spacing:.06em;color:var(--text);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:13.5px;color:var(--text-3);line-height:1.7}
.footer-col li a{color:var(--text-2)}
.footer-col li a:hover{color:var(--signal)}
.footer-keys{display:flex;flex-wrap:wrap;gap:8px}
.footer-keys span{font-size:12.5px;color:var(--text-3);padding:4px 11px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.03)}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 26px;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:12.5px;color:var(--text-3);
}
/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .cat-hero-grid{grid-template-columns:1.2fr .9fr;gap:32px}
  .city-grid{grid-template-columns:repeat(3,1fr)}
  .metric-row{grid-template-columns:1.2fr 1fr auto;padding:16px 18px}
}
@media (max-width:991.98px){
  .container{padding-left:20px!important;padding-right:20px!important}
  .section{padding:64px 0}
  .cat-hero{padding:44px 0 64px}
  .main-nav,.header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px}
  .city-grid{grid-template-columns:repeat(3,1fr)}
  .scene-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr;gap:32px}
  .story-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .faq-aside{position:static}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .footer-brand{grid-column:1/-1}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 28px}
  .cta-actions{width:100%}
}
@media (max-width:767.98px){
  .section{padding:48px 0}
  .sec-head{margin-bottom:28px}
  .city-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .city-card{min-height:118px;padding:14px 14px 12px}
  .scene-card{grid-template-columns:96px 1fr;gap:12px;padding:12px}
  .story-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .tip-list{grid-template-columns:1fr}
  .metric-row{grid-template-columns:1fr auto;gap:10px}
  .metric-desc{display:none}
  .metric-label{font-size:14px}
  .metric-value{font-size:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .hero-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .mini-kpi{grid-template-columns:1fr}
  .crumb{font-size:12.5px}
}
@media (max-width:519.98px){
  .container{padding-left:16px!important;padding-right:16px!important}
  .city-grid{grid-template-columns:1fr 1fr}
  .city-num{font-size:19px}
  .brand-text strong{font-size:14.5px}
  .brand-text small{font-size:10px}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:26px 20px}
  .scene-card{grid-template-columns:1fr}
  .scene-thumb{aspect-ratio:16/10}
}