/* roulang page: index */
:root{
  --ink:#14161A;
  --ink-soft:#1F2124;
  --orange:#FF5A1F;
  --orange-dark:#E84A12;
  --orange-soft:#FF8A4C;
  --sand:#F6F3EC;
  --card:#FFFFFF;
  --line:#E4DFD5;
  --gray:#6E6A63;
  --mint:#16C79A;
  --ended:#9AA0A6;
  --danger:#E03A2F;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(20,22,26,.04),0 10px 28px rgba(20,22,26,.05);
  --shadow-2:0 18px 40px rgba(20,22,26,.10);
  --container:1240px;
  --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;
  padding-top:72px;
  background:var(--sand);
  color:var(--ink-soft);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
a:hover{color:var(--orange-dark)}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{color:var(--ink);letter-spacing:-.01em}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px;border-radius:4px}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 40px;
}
.section{padding:110px 0}
.section-tight{padding:80px 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin-bottom:56px;
}
.section-head h2{
  font-size:clamp(28px,3.2vw,40px);
  font-weight:700;
  line-height:1.2;
  display:flex;
  align-items:center;
  gap:14px;
}
.h2-bar{display:inline-block;width:3px;height:26px;background:var(--orange);border-radius:2px;flex:none}
.section-head p{color:var(--gray);font-size:15px;max-width:560px;margin-top:12px;line-height:1.8}
.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.08em;
  color:var(--orange-dark);
  font-weight:700;
  margin-bottom:14px;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:700;
  font-size:15px;
  color:var(--ink);
  border-bottom:2px solid transparent;
  transition:color .25s var(--ease),border-color .25s var(--ease);
}
.text-link .arrow{transition:transform .25s var(--ease);display:inline-block}
.text-link:hover{color:var(--orange-dark);border-color:var(--orange)}
.text-link:hover .arrow{transform:translateX(4px)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  height:52px;
  padding:0 28px;
  border-radius:var(--r-btn);
  font-size:16px;
  font-weight:700;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background-color .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 8px 20px rgba(255,90,31,.24)}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost-light:hover{background:#fff;color:var(--ink);transform:translateY(-2px)}
.btn-sm{height:44px;padding:0 20px;font-size:15px}
.btn-block{width:100%}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 14px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.04em;
  line-height:1.6;
}
.badge-running{background:rgba(255,90,31,.12);color:var(--orange-dark)}
.badge-open{background:rgba(22,199,154,.14);color:#0E8E6D}
.badge-ended{background:rgba(154,160,166,.18);color:#676C72}
.badge-line{background:transparent;border:1px solid var(--line);color:var(--gray)}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:900;
  height:72px;
  background:rgba(20,22,26,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:height .25s var(--ease),background-color .3s var(--ease);
}
.site-header.scrolled{height:60px;background:rgba(20,22,26,.98);border-bottom-color:rgba(255,255,255,.1)}
.header-inner{height:100%;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand-mark{
  width:34px;height:34px;border-radius:9px;flex:none;
  background:linear-gradient(135deg,var(--orange) 0 46%,#fff 46% 54%,var(--orange-soft) 54% 100%);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:8px;border:2px solid var(--ink);border-radius:4px;
}
.brand-text{color:#fff;font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.brand-accent{color:var(--orange)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:12px}
.nav-link{
  position:relative;
  padding:8px 14px;
  font-size:15px;
  font-weight:600;
  color:rgba(255,255,255,.72);
  border-radius:8px;
  transition:color .25s var(--ease),background-color .25s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--orange);transform:scaleX(0);transform-origin:left;
  transition:transform .28s var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:#fff}
.nav-link.active::after{transform:scaleX(1)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.live-dot{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(22,199,154,.18)}
.header-status{font-size:13px;color:rgba(255,255,255,.72);font-weight:600}
.header-countdown{
  font-size:13px;font-weight:700;color:#fff;
  font-variant-numeric:tabular-nums;
  padding:4px 10px;border-radius:999px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.14);
}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:9px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
  padding:0;cursor:pointer;position:relative;
}
.nav-toggle span{
  position:absolute;left:11px;width:20px;height:2px;background:#fff;border-radius:2px;
  transition:transform .25s var(--ease),opacity .25s var(--ease),top .25s var(--ease);
}
.nav-toggle span:nth-child(1){top:14px}
.nav-toggle span:nth-child(2){top:20px}
.nav-toggle span:nth-child(3){top:26px}
.nav-toggle[aria-expanded="true"] span:nth-child(1){top:20px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){top:20px;transform:rotate(-45deg)}

.drawer{
  position:fixed;inset:0;z-index:950;
  background:rgba(20,22,26,.98);
  padding:96px 24px 40px;
  transform:translateY(-12px);
  opacity:0;visibility:hidden;
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
  overflow-y:auto;
}
.drawer.open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:32px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 18px;border-radius:12px;
  color:#fff;font-size:17px;font-weight:700;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
}
.drawer-nav a.active{background:rgba(255,90,31,.16);border-color:rgba(255,90,31,.4);color:#fff}
.drawer-meta{color:rgba(255,255,255,.6);font-size:13px;margin-bottom:20px;line-height:1.9}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--ink);color:#fff}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.42;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 1px,transparent 1px 14px),
    linear-gradient(180deg,rgba(20,22,26,.72),rgba(20,22,26,.94));
}
.hero .container{position:relative;z-index:2}
.hero-grid{padding:96px 0 56px;align-items:center}
.hero-copy{padding-right:32px}
.hero-tag{
  display:inline-flex;align-items:center;gap:10px;
  padding:7px 16px;border-radius:999px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  color:#fff;font-size:13px;font-weight:600;letter-spacing:.06em;
  margin-bottom:26px;
}
.hero-tag i{color:var(--orange)}
.hero h1{
  color:#fff;
  font-size:clamp(38px,5.2vw,66px);
  font-weight:900;
  line-height:1.06;
  letter-spacing:-.02em;
  margin-bottom:24px;
}
.hero h1 .hl{color:var(--orange);box-shadow:inset 0 -10px 0 rgba(255,90,31,.22)}
.hero-sub{color:rgba(255,255,255,.76);font-size:17px;line-height:1.9;max-width:600px;margin-bottom:34px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}

.hero-visual{position:relative}
.hero-img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);border:1px solid rgba(255,255,255,.12)}
.status-card{
  position:absolute;left:24px;right:24px;bottom:-18px;
  background:rgba(255,255,255,.98);
  color:var(--ink);
  border-radius:var(--r-card);
  padding:20px 22px;
  box-shadow:var(--shadow-2);
}
.status-card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.status-card-top span{font-size:13px;color:var(--gray);font-weight:600;letter-spacing:.04em}
.count-num{
  font-size:30px;font-weight:900;color:var(--ink);
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.count-num.pulse{animation:pulse 2.4s var(--ease) infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.72}}
.progress{height:8px;border-radius:999px;background:var(--line);overflow:hidden;margin:10px 0 12px}
.progress-fill{
  display:block;height:100%;width:0;border-radius:999px;
  background:linear-gradient(90deg,var(--orange),var(--orange-soft));
  transition:width .8s var(--ease);
}
.status-foot{display:flex;justify-content:space-between;font-size:13px;color:var(--gray)}

.stats-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:1px;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--r-card);
  overflow:hidden;margin:72px 0 0;
}
.stat{background:rgba(255,255,255,.04);padding:26px 24px}
.stat-num{
  font-size:clamp(30px,3.6vw,44px);font-weight:900;color:#fff;
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.stat-num em{font-style:normal;color:var(--orange);font-size:.5em;margin-left:6px;font-weight:700}
.stat-label{font-size:13px;color:rgba(255,255,255,.62);margin-top:6px;letter-spacing:.04em}

/* ---------- 步骤卡 ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step-card{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:38px 26px 30px;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:transparent}
.step-no{
  position:absolute;top:-18px;left:24px;
  font-size:44px;font-weight:900;line-height:1;
  color:transparent;-webkit-text-stroke:1.6px var(--orange);
  font-variant-numeric:tabular-nums;letter-spacing:-.03em;
}
.step-card h3{font-size:18px;font-weight:700;margin:14px 0 10px}
.step-card p{font-size:15px;color:var(--gray);line-height:1.8}
.step-card .step-tag{margin-top:18px;display:inline-block;font-size:12.5px;color:var(--orange-dark);font-weight:700;letter-spacing:.05em}

/* ---------- 奖励 ---------- */
.reward-grid{display:grid;grid-template-columns:1.45fr 1fr;gap:24px}
.reward-main{
  background:var(--ink);color:#fff;border-radius:var(--r-card);
  padding:40px;display:flex;flex-direction:column;justify-content:space-between;gap:28px;
  position:relative;overflow:hidden;
}
.reward-main::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,31,.34),transparent 68%);
}
.reward-main h3{color:#fff;font-size:24px;font-weight:800;position:relative;z-index:2}
.reward-main p{color:rgba(255,255,255,.72);font-size:15px;line-height:1.85;margin-top:12px;position:relative;z-index:2}
.reward-value{
  font-size:clamp(48px,7vw,84px);font-weight:900;line-height:1;color:var(--orange);
  font-variant-numeric:tabular-nums;letter-spacing:-.03em;position:relative;z-index:2;
}
.reward-value small{font-size:16px;color:rgba(255,255,255,.6);font-weight:600;margin-left:10px;letter-spacing:0}
.reward-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.reward-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;display:flex;gap:20px;align-items:center;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.reward-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.reward-card img{width:88px;height:88px;object-fit:cover;border-radius:var(--r-img);flex:none}
.reward-card h3{font-size:17px;font-weight:700;margin-bottom:6px}
.reward-card p{font-size:14px;color:var(--gray);line-height:1.75}
.reward-card .lvl{font-size:12.5px;color:var(--orange-dark);font-weight:700;letter-spacing:.05em;display:block;margin-bottom:6px}

/* ---------- 深色任务带 ---------- */
.dark-band{background:var(--ink);color:#fff}
.dark-band h2,.dark-band h3{color:#fff}
.dark-band .section-head p{color:rgba(255,255,255,.66)}
.task-grid{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:start}
.seg-progress{display:flex;gap:10px;margin:30px 0 18px}
.seg{flex:1;height:10px;border-radius:999px;border:1px solid rgba(255,255,255,.24);background:transparent}
.seg.done{background:linear-gradient(90deg,var(--orange),var(--orange-soft));border-color:transparent}
.seg-note{font-size:14px;color:rgba(255,255,255,.62)}
.big-num{
  font-size:clamp(56px,8vw,96px);font-weight:900;line-height:1;
  font-variant-numeric:tabular-nums;color:#fff;letter-spacing:-.03em;margin:8px 0 6px;
}
.big-num span{color:var(--orange);font-size:.36em;font-weight:700;margin-left:8px;letter-spacing:0}
.task-list{border-top:1px solid rgba(255,255,255,.12)}
.task-item{
  display:flex;align-items:center;gap:18px;
  padding:22px 4px;border-bottom:1px solid rgba(255,255,255,.12);
}
.task-check{
  width:26px;height:26px;border-radius:8px;flex:none;
  border:1.5px solid rgba(255,255,255,.3);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;color:transparent;
}
.task-check.on{background:var(--mint);border-color:var(--mint);color:#fff}
.task-body{flex:1;min-width:0}
.task-body h3{font-size:16px;font-weight:700;margin-bottom:2px}
.task-body p{font-size:13.5px;color:rgba(255,255,255,.6)}

/* ---------- 最新信息 ---------- */
.news{background:var(--sand)}
.feature-card{
  display:grid;grid-template-columns:7fr 5fr;gap:0;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;margin-bottom:24px;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.feature-media{overflow:hidden;display:block}
.feature-media img{width:100%;height:100%;min-height:300px;object-fit:cover;border-radius:0;transition:transform .45s var(--ease)}
.feature-card:hover .feature-media img{transform:scale(1.04)}
.feature-body{padding:38px 36px;display:flex;flex-direction:column;justify-content:center}
.meta-row{display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.meta-time{font-size:13px;color:var(--gray);font-variant-numeric:tabular-nums}
.feature-body h3{font-size:clamp(20px,2.2vw,26px);font-weight:800;line-height:1.4;margin-bottom:14px}
.feature-body h3 a:hover{color:var(--orange-dark)}
.feature-body p{font-size:15px;color:var(--gray);line-height:1.85;margin-bottom:22px}
.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;display:flex;flex-direction:column;gap:12px;height:100%;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.news-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:transparent}
.news-item h3{font-size:17px;font-weight:700;line-height:1.5}
.news-item h3 a:hover{color:var(--orange-dark)}
.news-item p{font-size:14.5px;color:var(--gray);line-height:1.8}
.news-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:8px}
.news-foot .text-link{font-size:14px}
.empty-state{
  background:var(--card);border:1px dashed var(--line);border-radius:var(--r-card);
  padding:64px 32px;text-align:center;
}
.empty-state .empty-icon{
  width:64px;height:64px;border-radius:18px;margin:0 auto 20px;
  background:rgba(255,90,31,.1);color:var(--orange);
  display:flex;align-items:center;justify-content:center;font-size:24px;
}
.empty-state h3{font-size:19px;font-weight:700;margin-bottom:10px}
.empty-state p{color:var(--gray);font-size:15px;margin-bottom:22px}

/* ---------- 分类入口 ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.topic-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px;display:flex;gap:24px;align-items:flex-start;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:transparent}
.topic-card img{width:104px;height:104px;object-fit:cover;border-radius:var(--r-img);flex:none}
.topic-card h3{font-size:19px;font-weight:800;margin:8px 0 10px}
.topic-card p{font-size:14.5px;color:var(--gray);line-height:1.8;margin-bottom:12px}
.topic-idx{
  font-size:12.5px;font-weight:700;letter-spacing:.08em;color:var(--orange-dark);
}

/* ---------- 声音 / 证据 ---------- */
.voice-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px}
.voice-main{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:44px;display:flex;flex-direction:column;justify-content:space-between;gap:26px;
}
.voice-quote{font-size:clamp(19px,2.1vw,24px);font-weight:700;line-height:1.7;color:var(--ink);letter-spacing:-.01em}
.voice-main .quote-line{width:44px;height:3px;background:var(--orange);border-radius:2px}
.voice-who{display:flex;align-items:center;gap:14px}
.voice-avatar{
  width:46px;height:46px;border-radius:50%;background:var(--ink);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;flex:none;
}
.voice-who b{display:block;font-size:15px;color:var(--ink)}
.voice-who span{font-size:13px;color:var(--gray)}
.voice-side{display:grid;gap:24px}
.voice-mini{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;
}
.voice-mini p{font-size:15px;color:var(--ink-soft);line-height:1.85;margin-bottom:14px}
.voice-mini .mini-meta{font-size:13px;color:var(--gray);display:flex;justify-content:space-between}

/* ---------- FAQ ---------- */
.faq{background:var(--sand)}
.faq-layout{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:start}
.faq-intro h2{font-size:clamp(28px,3.2vw,38px);font-weight:700;line-height:1.22;display:flex;gap:14px;align-items:center}
.faq-intro p{color:var(--gray);font-size:15.5px;line-height:1.9;margin-top:18px;max-width:420px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:none;border:0;cursor:pointer;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 4px;font-size:17px;font-weight:700;color:var(--ink);
  transition:color .25s var(--ease);
}
.faq-q:hover{color:var(--orange-dark)}
.faq-q i{color:var(--orange);transition:transform .28s var(--ease);flex:none;font-size:14px}
.faq-q[aria-expanded="true"] i{transform:rotate(90deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s var(--ease)}
.faq-a p{padding:0 44px 24px 24px;color:var(--gray);font-size:15.5px;line-height:1.9}

/* ---------- CTA ---------- */
.cta-band{background:var(--ink);color:#fff;position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;opacity:.2;
}
.cta-inner{position:relative;z-index:2;padding:96px 0;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.cta-band h2{color:#fff;font-size:clamp(30px,3.6vw,46px);font-weight:900;line-height:1.15;letter-spacing:-.02em}
.cta-band p{color:rgba(255,255,255,.72);font-size:16.5px;line-height:1.9;margin-top:18px;max-width:560px}
.cta-actions{display:flex;flex-direction:column;gap:16px;align-items:flex-start}
.cta-actions .btn{width:100%}
.cta-note{font-size:13.5px;color:rgba(255,255,255,.56);line-height:1.8}

/* ---------- 页脚 ---------- */
.site-footer{background:#0F1114;color:rgba(255,255,255,.66);padding:76px 0 0}
.footer-grid{display:grid;grid-template-columns:4fr 3fr 3fr 2fr;gap:48px;padding-bottom:56px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-text{font-size:16px}
.footer-tagline{font-size:14.5px;line-height:1.85;max-width:320px}
.footer-col h3{color:#fff;font-size:15px;font-weight:700;margin-bottom:20px;letter-spacing:.04em}
.footer-links li{margin-bottom:12px}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.66);transition:color .25s var(--ease),padding-left .25s var(--ease)}
.footer-links a:hover{color:var(--orange);padding-left:4px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:24px 0;display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-size:13px;color:rgba(255,255,255,.48);
}
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:800;
  width:48px;height:48px;border-radius:14px;border:0;cursor:pointer;
  background:var(--orange);color:#fff;font-size:16px;
  box-shadow:0 12px 28px rgba(255,90,31,.32);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s,background-color .25s var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--orange-dark)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .48s var(--ease),transform .48s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .main-nav .nav-link{padding:8px 10px;font-size:14px}
  .header-status{display:none}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:76px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:18px;margin-bottom:40px}
  .main-nav{display:none}
  .nav-toggle{display:block}
  .header-countdown{display:none}
  .hero-grid{padding:64px 0 48px}
  .hero-copy{padding-right:0;margin-bottom:56px}
  .hero-visual{order:2}
  .status-card{position:static;margin-top:20px;left:auto;right:auto;bottom:auto}
  .stats-bar{grid-template-columns:repeat(2,1fr);margin-top:48px}
  .steps-grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .reward-grid{grid-template-columns:1fr}
  .reward-side{grid-template-rows:auto auto;grid-template-columns:1fr 1fr}
  .task-grid{grid-template-columns:1fr;gap:40px}
  .feature-card{grid-template-columns:1fr}
  .feature-media img{min-height:240px}
  .topic-grid{grid-template-columns:1fr}
  .voice-grid{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .cta-inner{grid-template-columns:1fr;gap:36px;padding:72px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767px){
  body{font-size:16px}
  .section{padding:60px 0}
  .hero h1{font-size:clamp(30px,8.4vw,42px)}
  .hero-cta .btn{width:100%}
  .news-list{grid-template-columns:1fr}
  .reward-side{grid-template-columns:1fr}
  .reward-main{padding:30px}
  .voice-main{padding:30px}
  .feature-body{padding:26px 22px}
  .stat{padding:20px 18px}
}
@media (max-width:575px){
  .container{padding:0 20px}
  .hero-grid{padding:48px 0 32px}
  .stats-bar{grid-template-columns:1fr 1fr}
  .steps-grid{grid-template-columns:1fr}
  .topic-card{flex-direction:column}
  .topic-card img{width:100%;height:160px}
  .reward-card{flex-direction:column;align-items:flex-start}
  .reward-card img{width:100%;height:150px}
  .faq-q{font-size:16px;padding:20px 2px}
  .faq-a p{padding:0 16px 20px 12px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .btn{width:100%}
  .header-actions .btn{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --ink:#14161A;
  --ink-soft:#1F2124;
  --accent:#FF5A1F;
  --accent-deep:#E84A12;
  --accent-light:#FF8A4C;
  --mint:#16C79A;
  --muted:#6E6A63;
  --sand:#F6F3EC;
  --card:#FFFFFF;
  --line:#E4DFD5;
  --warn:#E03A2F;
  --grayed:#9AA0A6;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(20,22,26,.04),0 10px 28px rgba(20,22,26,.05);
  --shadow-2:0 18px 40px rgba(20,22,26,.10);
  --sp-2:8px;--sp-3:16px;--sp-4:24px;--sp-5:32px;--sp-6:48px;--sp-7:64px;--sp-8:96px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink-soft);
  background:var(--sand);
  font-feature-settings:"tnum";
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.01em}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;height:auto}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea{font:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 40px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,243,236,.86);
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid transparent;
  transition:background .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--line);
  box-shadow:0 6px 20px rgba(20,22,26,.05);
}
.header-inner{
  display:flex;align-items:center;gap:var(--sp-5);
  min-height:72px;transition:min-height .28s var(--ease);
}
.site-header.is-scrolled .header-inner{min-height:60px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:26px;height:26px;flex-shrink:0;border-radius:7px;
  background:
    linear-gradient(135deg,var(--ink) 0 52%,var(--accent) 52% 100%);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.15);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:8px 7px 7px 8px;
  border-left:2px solid #fff;border-bottom:2px solid #fff;
  transform:skewX(-12deg);
}
.brand-text{font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.02em;white-space:nowrap}
.brand-accent{color:var(--accent)}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:6px}
.nav-link{
  position:relative;font-size:15px;font-weight:600;color:var(--ink-soft);
  padding:6px 0;white-space:nowrap;transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .28s var(--ease);
}
.nav-link:hover{color:var(--accent-deep)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--accent-deep)}
.nav-link.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.status-pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  color:#0E6B54;background:rgba(22,199,154,.12);border:1px solid rgba(22,199,154,.32);
  white-space:nowrap;
}
.dot{width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 3px rgba(22,199,154,.18)}
.countdown-mini{font-size:12.5px;color:var(--muted);white-space:nowrap}
.countdown-mini b{color:var(--ink);font-weight:700}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 28px;border-radius:var(--r-btn);
  font-size:16px;font-weight:700;letter-spacing:.01em;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(255,90,31,.24)}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:0 14px 28px rgba(232,74,18,.3)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(232,74,18,.22)}
.btn-ghost{border:1.5px solid var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{
  display:none;background:#fff;border-top:1px solid var(--line);
  padding:20px 0 28px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer .drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 0;font-size:16px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-drawer .drawer-link.active{color:var(--accent-deep)}
.mobile-drawer .drawer-foot{margin-top:20px;display:flex;flex-direction:column;gap:12px}

/* ---------- breadcrumb ---------- */
.crumb{padding:22px 0 0;font-size:14px;color:var(--muted)}
.crumb a{transition:color .2s var(--ease)}
.crumb a:hover{color:var(--accent-deep)}
.crumb span.sep{margin:0 8px;color:#C9C3B8}
.crumb strong{color:var(--ink);font-weight:700}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;margin-top:24px;
  background-image:linear-gradient(105deg,rgba(20,22,26,.92) 0%,rgba(20,22,26,.78) 46%,rgba(20,22,26,.42) 100%),
    url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  color:#F4F1EA;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.055) 0 1px,transparent 1px 22px);
  pointer-events:none;
}
.page-hero .hero-inner{position:relative;z-index:2;padding:76px 0 68px;max-width:820px}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;margin-bottom:20px;
  padding:6px 14px;border-radius:999px;font-size:13px;letter-spacing:.08em;
  color:#FFD9C6;background:rgba(255,90,31,.16);border:1px solid rgba(255,90,31,.42);
}
.page-hero h1{
  font-size:clamp(30px,4.2vw,50px);line-height:1.16;letter-spacing:-.02em;
  color:#fff;margin-bottom:18px;
}
.page-hero h1 em{font-style:normal;color:var(--accent-light)}
.page-hero p{color:#D9D4CA;font-size:17px;max-width:680px;margin-bottom:26px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px}
.hero-badges span{
  display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:#EDE9E1;
  padding:7px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.06);
}
.hero-badges .badge-strong{border-color:rgba(255,90,31,.6);color:#FFD9C6}

/* ---------- section base ---------- */
.section{padding:88px 0}
.section-tight{padding-top:64px}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{
  font-size:clamp(26px,3.1vw,38px);line-height:1.22;margin-bottom:14px;
  display:flex;gap:14px;align-items:flex-start;
}
.section-head h2 .bar{
  display:inline-block;width:3px;height:26px;margin-top:8px;background:var(--accent);border-radius:2px;flex-shrink:0;
}
.section-head p{color:var(--muted);font-size:16.5px}

/* ---------- index layout ---------- */
.index-layout{
  display:grid;grid-template-columns:264px minmax(0,1fr);gap:56px;align-items:start;
}
.toc{
  position:sticky;top:96px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--shadow-1);
}
.toc-title{
  font-size:13px;letter-spacing:.1em;color:var(--muted);font-weight:700;
  padding-bottom:14px;margin-bottom:14px;border-bottom:1px solid var(--line);
}
.toc-list li+li{margin-top:2px}
.toc-link{
  display:flex;align-items:flex-start;gap:10px;
  padding:11px 10px;border-radius:10px;font-size:15px;font-weight:600;color:var(--ink-soft);
  transition:background-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.toc-link i{
  font-style:normal;font-size:12px;font-weight:700;color:var(--accent);
  width:22px;flex-shrink:0;padding-top:2px;
}
.toc-link:hover{background:#FBF9F4;color:var(--accent-deep);transform:translateX(2px)}
.toc-link.is-current{background:#FDF1EA;color:var(--accent-deep)}
.toc-note{margin-top:20px;padding-top:18px;border-top:1px solid var(--line);font-size:13.5px;color:var(--muted);line-height:1.7}

.block{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:40px;box-shadow:var(--shadow-1);scroll-margin-top:110px;
}
.block+.block{margin-top:28px}
.block-head{display:flex;gap:16px;align-items:baseline;margin-bottom:22px}
.block-num{
  font-size:14px;font-weight:800;color:var(--accent);letter-spacing:.06em;
  padding-top:6px;
}
.block h2{font-size:clamp(21px,2.3vw,26px);line-height:1.3}
.block .lead{color:var(--muted);font-size:16.5px;margin-bottom:26px}

.media-row{display:grid;grid-template-columns:minmax(0,300px) minmax(0,1fr);gap:32px;align-items:start}
.media-figure{margin:0;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line)}
.media-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s var(--ease)}
.media-row:hover .media-figure img{transform:scale(1.03)}
.media-body h3{font-size:18px;margin-bottom:10px}
.media-body p{font-size:16px;color:var(--ink-soft)}
.plain-list{margin-top:18px}
.plain-list li{
  position:relative;padding-left:22px;font-size:15.5px;color:var(--ink-soft);
  padding-bottom:10px;
}
.plain-list li::before{
  content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:2px;background:var(--accent);
}
.mini-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.tag{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;
  font-size:12.5px;letter-spacing:.04em;font-weight:600;
  color:var(--muted);background:#F3F0E9;border:1px solid var(--line);
}
.tag-accent{color:var(--accent-deep);background:#FDF1EA;border-color:rgba(255,90,31,.28)}
.tag-ok{color:#0E6B54;background:rgba(22,199,154,.12);border-color:rgba(22,199,154,.3)}

/* ---------- checklist ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:20px 22px;border-radius:14px;background:#FBF9F4;border:1px solid var(--line);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.check-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D8D2C6}
.check-index{
  width:34px;height:34px;flex-shrink:0;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;color:var(--accent-deep);background:#FDF1EA;
}
.check-item strong{display:block;font-size:16px;color:var(--ink);margin-bottom:4px}
.check-item span{font-size:14.5px;color:var(--muted);line-height:1.75}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:56px;align-items:start}
.faq-aside h2{font-size:clamp(24px,2.8vw,34px);line-height:1.25;margin-bottom:16px;display:flex;gap:14px}
.faq-aside h2 .bar{display:inline-block;width:3px;height:24px;margin-top:9px;background:var(--accent);border-radius:2px;flex-shrink:0}
.faq-aside p{color:var(--muted);font-size:16px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:68px;padding:18px 0;font-size:17px;font-weight:700;color:var(--ink);cursor:pointer;
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--accent-deep)}
.faq-item summary .chev{
  width:26px;height:26px;flex-shrink:0;border-radius:50%;
  border:1.5px solid var(--line);position:relative;transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.faq-item summary .chev::before{
  content:"";position:absolute;left:9px;top:8px;width:6px;height:6px;
  border-right:2px solid var(--ink);border-bottom:2px solid var(--ink);
  transform:rotate(45deg);transition:border-color .3s var(--ease);
}
.faq-item[open] summary{color:var(--accent-deep)}
.faq-item[open] summary .chev{transform:rotate(90deg);border-color:rgba(255,90,31,.5)}
.faq-item[open] summary .chev::before{border-color:var(--accent-deep)}
.faq-answer{padding:0 24px 24px 0;font-size:16px;color:var(--ink-soft);line-height:1.9}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink);color:#F4F1EA;
  padding:80px 0;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.045) 0 1px,transparent 1px 54px);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:48px;align-items:center}
.cta-inner h2{color:#fff;font-size:clamp(26px,3.2vw,40px);line-height:1.2;margin-bottom:14px}
.cta-inner p{color:#C8C3B8;font-size:16.5px;max-width:620px;margin:0}
.cta-actions{display:flex;flex-direction:column;gap:12px;min-width:236px}
.cta-actions .btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}
.cta-actions .btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
.cta-note{font-size:13px;color:#9AA0A6}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#EDE9E1;padding:76px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{color:#fff;font-size:18px}
.footer-tagline{color:#A9A49B;font-size:15px;line-height:1.85;max-width:360px}
.footer-col h3{
  font-size:14px;color:#fff;letter-spacing:.08em;margin-bottom:18px;font-weight:700;
}
.footer-links li+li{margin-top:11px}
.footer-links a{font-size:15px;color:#A9A49B;transition:color .2s var(--ease),padding-left .2s var(--ease)}
.footer-links a:hover{color:var(--accent-light);padding-left:4px}
.footer-bottom{
  margin-top:60px;border-top:1px solid rgba(255,255,255,.12);
  padding:24px 0 30px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:#8C877E;
}
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:70;
  width:46px;height:46px;border-radius:12px;background:var(--ink);color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--accent)}
.to-top::before{
  content:"";width:9px;height:9px;border-left:2px solid #fff;border-top:2px solid #fff;
  transform:rotate(45deg) translate(2px,2px);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .48s var(--ease),transform .48s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .container{padding:0 24px}
  .main-nav{display:none}
  .countdown-mini{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn-primary{display:none}
  .index-layout{grid-template-columns:1fr;gap:28px}
  .toc{position:static}
  .toc-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}
  .media-row{grid-template-columns:1fr}
  .check-grid{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .cta-actions{flex-direction:row;flex-wrap:wrap}
  .cta-actions .btn{flex:1 1 200px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .section{padding:64px 0}
}
@media (max-width:767px){
  body{font-size:16px}
  .page-hero{background-image:linear-gradient(180deg,rgba(20,22,26,.94),rgba(20,22,26,.86)),url("/assets/images/backpic/back-1.png")}
  .page-hero .hero-inner{padding:56px 0 48px}
  .block{padding:28px 22px}
  .toc-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;gap:8px}
  .section{padding:56px 0}
  .cta-band{padding:60px 0}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .brand-text{font-size:16px}
  .hero-badges span{font-size:12.5px}
  .btn{width:100%;padding:0 20px}
  .btn-sm{width:auto}
  .cta-actions{flex-direction:column}
  .faq-item summary{font-size:16px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --ink:#14161A;
  --ink-2:#1F2124;
  --ink-3:#2A2D33;
  --accent:#FF5A1F;
  --accent-dark:#E84A12;
  --accent-soft:#FF8A4C;
  --mint:#16C79A;
  --gray:#9AA0A6;
  --danger:#E03A2F;
  --sand:#F6F3EC;
  --sand-deep:#EFEAE0;
  --card:#FFFFFF;
  --line:#E4DFD5;
  --muted:#6E6A63;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --pill:999px;
  --shadow-1:0 1px 2px rgba(20,22,26,.04),0 10px 28px rgba(20,22,26,.05);
  --shadow-2:0 18px 40px rgba(20,22,26,.10);
  --container:1240px;
  --pad:40px;
  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-5:48px; --sp-6:64px; --sp-7:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;padding:0}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.01em;line-height:1.2}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--pad)}
.tabnum{font-variant-numeric:tabular-nums}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 28px;border-radius:var(--radius-sm);
  font-weight:700;font-size:16px;letter-spacing:.01em;white-space:nowrap;
  transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(255,90,31,.24)}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 14px 28px rgba(255,90,31,.30)}
.btn-primary:active{transform:translateY(0);background:var(--accent-dark)}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55)}
.btn-light:hover{background:#fff;color:var(--ink);border-color:#fff;transform:translateY(-2px)}
.btn-text{display:inline-flex;align-items:center;gap:10px;font-weight:700;color:var(--accent);height:auto;padding:0}
.btn-text i{transition:transform .2s ease}
.btn-text:hover i{transform:translateX(4px)}
.btn-sm{height:42px;padding:0 20px;font-size:15px}
.btn-block{width:100%}

/* ============ 徽章 / 标签 ============ */
.badge{display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 14px;border-radius:var(--pill);font-size:13px;font-weight:600;letter-spacing:.04em}
.badge-live{background:rgba(255,90,31,.12);color:var(--accent-dark)}
.badge-open{background:rgba(22,199,154,.14);color:#0E8F6E}
.badge-end{background:rgba(154,160,166,.18);color:#6B7075}
.badge-inverse{background:rgba(255,255,255,.12);color:#fff}
.dot{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block;animation:pulse 1.8s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.82)}}
.tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--pill);border:1px solid var(--line);background:#fff;color:var(--muted);font-size:13px;letter-spacing:.06em}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(20,22,26,.95);
  border-bottom:1px solid rgba(255,255,255,.07);
  backdrop-filter:saturate(140%) blur(12px);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 30px rgba(20,22,26,.22);background:rgba(20,22,26,.99)}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height .25s ease}
.site-header.is-scrolled .header-inner{height:60px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:#fff;font-weight:800;font-size:19px;letter-spacing:-.01em}
.brand-mark{position:relative;width:28px;height:28px;border-radius:9px;background:linear-gradient(140deg,var(--accent),var(--accent-soft));flex:0 0 auto}
.brand-mark::after{content:"";position:absolute;left:7px;right:7px;top:9px;height:2px;background:#fff;border-radius:2px;box-shadow:0 4px 0 #fff,0 8px 0 rgba(255,255,255,.55)}
.brand-accent{color:var(--accent)}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:12px}
.nav-link{position:relative;padding:8px 14px;border-radius:8px;font-size:15px;font-weight:600;color:rgba(255,255,255,.76);transition:color .2s ease,background .2s ease}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .26s ease}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:#fff}
.nav-link.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:16px;margin-left:auto}
.header-actions .badge{color:#fff;background:rgba(255,90,31,.18);border:1px solid rgba(255,90,31,.35)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.18);color:#fff;align-items:center;justify-content:center;font-size:18px}
.nav-toggle:hover{background:rgba(255,255,255,.08)}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:120;background:var(--ink);
  padding:22px;display:flex;flex-direction:column;gap:24px;
  transform:translateY(-100%);opacity:0;visibility:hidden;pointer-events:none;
  transition:transform .26s cubic-bezier(.22,.61,.36,1),opacity .26s ease,visibility .26s;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.18);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;border-top:1px solid rgba(255,255,255,.10);padding-top:16px}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;padding:16px 4px;color:rgba(255,255,255,.86);font-size:18px;font-weight:700;border-bottom:1px solid rgba(255,255,255,.08)}
.drawer-nav a.active{color:var(--accent)}
.drawer-foot{display:flex;flex-direction:column;gap:14px;margin-top:auto}
.drawer-foot p{color:rgba(255,255,255,.55);font-size:14px;line-height:1.7}

/* ============ 文章头图区 ============ */
.article-hero{
  position:relative;color:#fff;padding:64px 0 80px;
  background-image:linear-gradient(115deg,rgba(20,22,26,.94) 8%,rgba(20,22,26,.78) 52%,rgba(20,22,26,.62) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.055) 0 1px,transparent 1px 66px);
  opacity:.6;pointer-events:none;
}
.article-hero .container{position:relative;z-index:2}
.hero-flags{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:24px}
.hero-flags .badge{background:rgba(255,255,255,.12);color:#fff}
.hero-flags .badge .dot{background:var(--accent)}
.hero-title{font-size:clamp(32px,4.4vw,54px);line-height:1.1;color:#fff;max-width:1000px}
.hero-desc{
  margin-top:22px;max-width:820px;color:rgba(255,255,255,.76);font-size:16px;line-height:1.9;
  display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden;
}
.hero-bar{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:32px}
.share-btn{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 18px;border-radius:var(--pill);
  border:1px solid rgba(255,255,255,.28);color:#fff;font-size:14px;font-weight:600;transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.share-btn:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.55);transform:translateY(-2px)}

/* ============ 面包屑 ============ */
.crumb-wrap{padding:26px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--muted)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:#C7C1B6}
.breadcrumb .current{color:var(--ink);font-weight:700}

/* ============ 正文区 ============ */
.article-main{padding:32px 0 96px}
.article-panel{
  max-width:880px;margin:0 auto;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);
  padding:48px 56px 56px;
}
.article-head h1{font-size:clamp(28px,3.2vw,40px);line-height:1.22}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;margin-top:20px;color:var(--muted);font-size:14px}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--accent)}
.head-line{height:1px;background:var(--line);margin:32px 0 8px}

.article-body{padding-top:24px;font-size:17px;line-height:1.9;color:var(--ink-2)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:1.4em 0}
.article-body h2{
  position:relative;margin:2.2em 0 .8em;padding-left:18px;
  font-size:clamp(22px,2.5vw,30px);line-height:1.3;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:2px;background:var(--accent)}
.article-body h3{margin:1.8em 0 .6em;font-size:21px;font-weight:700;line-height:1.4;color:var(--ink)}
.article-body h4{margin:1.5em 0 .5em;font-size:18px;color:var(--ink)}
.article-body a{color:var(--accent-dark);border-bottom:1px solid rgba(255,90,31,.35)}
.article-body a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.article-body ul,.article-body ol{margin:1.2em 0;padding-left:0}
.article-body li{position:relative;padding-left:26px;margin:.6em 0}
.article-body ul>li::before{content:"";position:absolute;left:4px;top:.75em;width:8px;height:8px;border-radius:2px;background:var(--accent)}
.article-body ol{counter-reset:li}
.article-body ol>li{counter-increment:li}
.article-body ol>li::before{
  content:counter(li);position:absolute;left:0;top:.35em;width:20px;height:20px;border-radius:6px;
  background:rgba(255,90,31,.12);color:var(--accent-dark);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;line-height:1;
}
.article-body blockquote{
  margin:1.8em 0;padding:20px 24px;background:var(--sand);border-left:3px solid var(--accent);
  border-radius:0 var(--radius-md) var(--radius-md) 0;color:var(--muted);
}
.article-body blockquote p{margin:.4em 0}
.article-body img{border-radius:var(--radius-md);margin:1.6em auto;box-shadow:var(--shadow-1)}
.article-body figure{margin:1.8em 0}
.article-body figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--muted)}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 16px;text-align:left}
.article-body th{background:var(--sand-deep);font-weight:700;color:var(--ink)}
.article-body tr:nth-child(even) td{background:#FBF9F4}
.article-body code{background:var(--sand-deep);padding:2px 6px;border-radius:5px;font-size:.92em}
.article-body pre{background:var(--ink);color:#F2EFE9;padding:20px 22px;border-radius:var(--radius-md);overflow-x:auto;font-size:14px;line-height:1.7}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
.article-end{display:flex;align-items:center;gap:14px;margin-top:48px;color:var(--muted);font-size:13px;letter-spacing:.14em}
.article-end::before,.article-end::after{content:"";height:1px;background:var(--line);flex:1}

.article-empty{text-align:center;padding:56px 24px}
.article-empty i{font-size:40px;color:var(--accent)}
.article-empty h2{margin:20px 0 12px;font-size:26px}
.article-empty p{color:var(--muted);max-width:520px;margin:0 auto 28px}

/* ============ 分类入口 ============ */
.entry-section{padding:0 0 96px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;position:relative;padding-left:18px}
.section-head h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--accent)}
.section-head p{color:var(--muted);font-size:15px;max-width:560px;margin-top:12px}
.entry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.entry-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D8D2C6}
.entry-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--sand-deep)}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.entry-card:hover .entry-thumb img{transform:scale(1.04)}
.entry-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.entry-body h3{font-size:18px;font-weight:700;line-height:1.4;transition:color .2s ease}
.entry-card:hover .entry-body h3{color:var(--accent)}
.entry-body p{font-size:14px;color:var(--muted);line-height:1.75}
.entry-link{margin-top:auto;display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-weight:700;font-size:14px}
.entry-link i{transition:transform .2s ease}
.entry-card:hover .entry-link i{transform:translateX(4px)}

/* ============ FAQ ============ */
.faq-section{padding:0 0 96px}
.faq-grid{display:grid;grid-template-columns:0.85fr 1.15fr;gap:56px;align-items:start}
.faq-intro h2{font-size:clamp(26px,2.8vw,36px);line-height:1.25;position:relative;padding-left:18px}
.faq-intro h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--accent)}
.faq-intro p{margin-top:18px;color:var(--muted);font-size:15px}
.faq-list{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:6px 28px;box-shadow:var(--shadow-1)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:70px;padding:14px 0;cursor:pointer;list-style:none;
  font-size:16.5px;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--accent);transition:transform .24s ease;flex:0 0 auto}
.faq-item[open] summary i{transform:rotate(90deg)}
.faq-answer{padding:0 0 22px;color:var(--muted);font-size:15.5px;line-height:1.9}

/* ============ CTA ============ */
.cta-band{
  position:relative;background:var(--ink);color:#fff;padding:84px 0;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 1px,transparent 1px 74px);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:center}
.cta-inner h2{color:#fff;font-size:clamp(26px,3vw,40px);line-height:1.22}
.cta-inner p{margin-top:18px;color:rgba(255,255,255,.68);font-size:15.5px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.cta-side{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-lg);padding:28px}
.cta-side h3{color:#fff;font-size:17px;margin-bottom:14px}
.cta-side ul li{display:flex;align-items:flex-start;gap:10px;padding:9px 0;color:rgba(255,255,255,.72);font-size:14.5px;line-height:1.7}
.cta-side ul li i{color:var(--accent);margin-top:5px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 0;font-size:15px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px;padding-bottom:56px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:19px;margin-bottom:18px}
.footer-tagline{color:rgba(255,255,255,.6);font-size:14.5px;line-height:1.85;max-width:340px}
.footer-col h3{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;letter-spacing:.04em}
.footer-links li{margin-bottom:12px}
.footer-links a{color:rgba(255,255,255,.62);font-size:14.5px}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:24px 0 30px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  color:rgba(255,255,255,.45);font-size:13.5px;
}
.back-top{
  position:fixed;right:24px;bottom:24px;z-index:80;width:48px;height:48px;border-radius:14px;
  background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-size:17px;
  box-shadow:0 12px 28px rgba(255,90,31,.32);opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s,background .2s ease;
}
.back-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{background:var(--accent-dark);transform:translateY(-2px)}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .48s cubic-bezier(.22,.61,.36,1),transform .48s cubic-bezier(.22,.61,.36,1)}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  :root{--pad:28px}
  .entry-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .header-actions .badge{display:none}
  .article-panel{padding:40px 36px 44px}
  .faq-grid{grid-template-columns:1fr;gap:36px}
  .cta-inner{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .cta-band{padding:64px 0}
}
@media (max-width:767px){
  :root{--pad:22px}
  body{font-size:16px}
  .header-inner{height:60px;gap:16px}
  .logo{font-size:17px}
  .brand-mark{width:25px;height:25px}
  .header-actions .btn{display:none}
  .article-hero{padding:44px 0 56px}
  .hero-desc{-webkit-line-clamp:5}
  .entry-grid{grid-template-columns:1fr;gap:20px}
  .article-panel{padding:30px 22px 34px;border-radius:var(--radius-md)}
  .article-body{font-size:16px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .faq-list{padding:4px 20px}
  .faq-item summary{min-height:64px;font-size:15.5px}
  .site-footer{padding-top:56px}
}
@media (max-width:520px){
  .entry-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-actions .btn{width:100%}
  .hero-bar .share-btn{flex:1 1 auto;justify-content:center}
  .back-top{right:16px;bottom:16px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#14161A;
  --ink-2:#1F2124;
  --accent:#FF5A1F;
  --accent-dark:#E84A12;
  --accent-soft:#FF8A4C;
  --sand:#F6F3EC;
  --card:#FFFFFF;
  --line:#E4DFD5;
  --muted:#6E6A63;
  --mint:#16C79A;
  --gray:#9AA0A6;
  --error:#E03A2F;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(20,22,26,.04),0 10px 28px rgba(20,22,26,.05);
  --shadow-2:0 18px 40px rgba(20,22,26,.10);
  --container:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .24s var(--ease)}
button{font:inherit;cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 40px}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--ink);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(20,22,26,.28)}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  height:72px;transition:height .28s var(--ease);
}
.site-header.is-scrolled .nav-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  position:relative;width:28px;height:28px;border-radius:9px;flex-shrink:0;
  background:linear-gradient(135deg,var(--accent) 0%,var(--accent-soft) 100%);
}
.brand-mark::after{
  content:"";position:absolute;left:6px;top:12px;width:16px;height:3px;
  background:#fff;border-radius:2px;transform:rotate(-34deg);
}
.brand-text{color:#fff;font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.brand-accent{color:var(--accent)}
.main-nav{display:flex;align-items:center;gap:26px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:rgba(255,255,255,.7);
  padding:8px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .28s var(--ease);
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:#fff;font-weight:700}
.nav-link.active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:18px;flex-shrink:0}
.status-chip{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:rgba(255,255,255,.58);white-space:nowrap}
.dot{width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 3px rgba(22,199,154,.18)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;border:1.5px solid transparent;
  transition:background .24s var(--ease),color .24s var(--ease),transform .24s var(--ease),
             box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(232,74,18,.28)}
.btn-primary:active{transform:none;box-shadow:none}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-outline:active{transform:none}
.btn-on-dark{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-on-dark:hover{background:#fff;color:var(--ink);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.hamburger{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.2);
  align-items:center;
}
.hamburger span{display:block;width:18px;height:2px;background:#fff;border-radius:2px}
.nav-drawer{
  position:fixed;inset:0;z-index:90;background:var(--ink);
  display:flex;flex-direction:column;padding:22px;
  transform:translateX(100%);visibility:hidden;
  transition:transform .24s var(--ease),visibility .24s var(--ease);
}
.nav-drawer.open{transform:translateX(0);visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.2);
  color:#fff;font-size:22px;line-height:1;display:flex;align-items:center;justify-content:center;
}
.drawer-links{display:flex;flex-direction:column;gap:4px}
.drawer-link{
  padding:16px 4px;color:rgba(255,255,255,.78);font-size:17px;font-weight:600;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.drawer-link.active{color:var(--accent)}
.drawer-cta{margin-top:26px;width:100%}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;color:#fff;
  padding:56px 0 104px;
  background:url(/assets/images/backpic/back-2.png) center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(20,22,26,.94) 0%,rgba(20,22,26,.80) 52%,rgba(20,22,26,.56) 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 1px,transparent 1px 14px);
}
.hero-grid{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.58)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.35)}
.breadcrumb .current{color:#fff;font-weight:700}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;margin-top:22px;
  height:28px;padding:0 14px;border-radius:999px;font-size:13px;letter-spacing:.06em;
  color:var(--accent);border:1px solid rgba(255,90,31,.5);background:rgba(255,90,31,.1);
}
.hero-title{
  margin-top:20px;font-size:clamp(34px,4.4vw,58px);font-weight:900;
  line-height:1.08;letter-spacing:-.02em;color:#fff;
}
.hero-title em{font-style:normal;color:var(--accent)}
.hero-sub{
  margin-top:20px;max-width:600px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.78);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px 20px;margin-top:28px;
  font-size:13px;color:rgba(255,255,255,.55);letter-spacing:.02em;
}
.hero-side{width:100%}
.hero-card{
  background:#1B1E23;border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-card);padding:26px 24px;
}
.hero-card h2{
  font-size:15px;font-weight:700;color:#fff;letter-spacing:.04em;margin-bottom:6px;
}
.hero-card .hero-card-note{font-size:13px;color:rgba(255,255,255,.5);margin-bottom:18px}
.verify-list{display:flex;flex-direction:column}
.verify-row{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:14px 0;border-bottom:1px solid rgba(255,255,255,.1);
}
.verify-row:last-child{border-bottom:0;padding-bottom:0}
.verify-row .name{font-size:15px;color:rgba(255,255,255,.86);font-weight:600}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.04em;white-space:nowrap;
}
.tag-hot{background:rgba(255,90,31,.14);color:var(--accent)}
.tag-mint{background:rgba(22,199,154,.16);color:#3BE0B4}
.tag-gray{background:rgba(255,255,255,.1);color:rgba(255,255,255,.62)}
.tag-sand{background:#F0EDE6;color:var(--muted)}
.tag-mint-dark{background:rgba(22,199,154,.14);color:#0E9C78}

/* ============ 数据条 ============ */
.stats-band{margin-top:-56px;position:relative;z-index:6}
.stats-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);display:grid;grid-template-columns:repeat(4,1fr);
  padding:30px 8px;
}
.stat{padding:0 22px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat-num{
  font-size:clamp(26px,2.8vw,38px);font-weight:900;color:var(--ink);
  line-height:1.1;letter-spacing:-.02em;font-variant-numeric:tabular-nums;
}
.stat-num .unit{font-size:.46em;color:var(--accent);font-weight:800;margin-left:2px}
.stat-label{font-size:13px;color:var(--muted);margin-top:6px;letter-spacing:.02em}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section-tight{padding-top:0}
.section-head{max-width:760px;margin-bottom:48px}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:.16em;
  color:var(--accent);text-transform:uppercase;
}
.h2{
  position:relative;margin:14px 0 16px;padding-left:16px;
  font-size:clamp(26px,3vw,38px);font-weight:800;line-height:1.22;
  letter-spacing:-.01em;color:var(--ink);
}
.h2::before{
  content:"";position:absolute;left:0;top:.22em;width:3px;height:24px;
  border-radius:2px;background:var(--accent);
}
.lead{color:var(--muted);font-size:16px;line-height:1.85}

/* ============ 卡片流 ============ */
.card-flow{margin-top:0}
.card-wide{
  display:grid;grid-template-columns:1.1fr .9fr;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);height:100%;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.card-wide:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.card-wide-body{padding:40px 38px;display:flex;flex-direction:column;justify-content:center;gap:14px}
.card-wide-media{position:relative;min-height:340px}
.card-wide-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.card-no{
  font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.card-title{font-size:24px;font-weight:800;color:var(--ink);line-height:1.35;letter-spacing:-.01em}
.card-text{font-size:15.5px;color:var(--muted);line-height:1.85}
.card-points{display:flex;flex-direction:column;gap:10px;margin-top:4px}
.card-points li{
  position:relative;padding-left:20px;font-size:15px;color:var(--ink-2);line-height:1.7;
}
.card-points li::before{
  content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:2px;
  background:var(--accent);
}
.card-sm{
  display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.card-sm:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.card-sm-media{aspect-ratio:16/10;overflow:hidden;background:#EFEBE2}
.card-sm-media img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease)}
.card-sm:hover .card-sm-media img{transform:scale(1.04)}
.card-sm-body{padding:22px 22px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-sm-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.card-sm-title{font-size:18px;font-weight:700;color:var(--ink);line-height:1.45;transition:color .24s var(--ease)}
.card-sm:hover .card-sm-title{color:var(--accent)}
.card-sm-text{font-size:15px;color:var(--muted);line-height:1.8;flex:1}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--gray);padding-top:12px;border-top:1px solid var(--line);
}
.card-foot .arrow{transition:transform .24s var(--ease);color:var(--accent);font-weight:700}
.card-sm:hover .card-foot .arrow{transform:translateX(4px)}

/* ============ 场景深色带 ============ */
.scene-band{
  position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:88px 0;
}
.scene-band::before{
  content:"";position:absolute;inset:0;opacity:.6;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 1px,transparent 1px 14px);
}
.scene-band .container{position:relative;z-index:2}
.scene-head .h2{color:#fff}
.scene-head .h2::before{background:var(--accent)}
.scene-head .lead{color:rgba(255,255,255,.66)}
.scene-list{display:flex;flex-direction:column}
.scene-item{
  display:flex;align-items:flex-start;gap:18px;padding:22px 0;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.scene-item:first-child{padding-top:0}
.scene-item:last-child{border-bottom:0}
.scene-index{
  flex-shrink:0;width:34px;height:34px;border-radius:10px;display:flex;align-items:center;
  justify-content:center;font-size:13px;font-weight:800;color:var(--accent);
  border:1px solid rgba(255,90,31,.45);background:rgba(255,90,31,.1);
  font-variant-numeric:tabular-nums;
}
.scene-body{flex:1;min-width:0}
.scene-body h3{font-size:17px;font-weight:700;color:#fff;margin-bottom:6px}
.scene-body p{font-size:14.5px;color:rgba(255,255,255,.62);line-height:1.8}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.flow-step{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:32px 24px 28px;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.flow-step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D8D1C3}
.flow-num{
  font-size:46px;font-weight:900;line-height:1;letter-spacing:-.03em;
  color:var(--accent);font-variant-numeric:tabular-nums;
}
.flow-step h3{font-size:18px;font-weight:700;color:var(--ink);margin:18px 0 8px}
.flow-step p{font-size:15px;color:var(--muted);line-height:1.8}
.flow-step::after{
  content:"";position:absolute;left:24px;bottom:0;width:36px;height:3px;
  border-radius:3px;background:var(--accent);opacity:.85;
}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 0;font-size:17px;font-weight:600;color:var(--ink);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{position:relative;width:22px;height:22px;flex-shrink:0;transition:transform .28s var(--ease)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--accent);border-radius:2px;
}
.faq-icon::before{left:0;top:10px;width:22px;height:2px}
.faq-icon::after{left:10px;top:0;width:2px;height:22px;transition:opacity .28s var(--ease)}
.faq-item[open] .faq-icon{transform:rotate(90deg)}
.faq-item[open] .faq-icon::after{opacity:0}
.faq-item[open] summary{color:var(--accent-dark)}
.faq-body{
  padding:0 44px 26px 0;font-size:15.5px;line-height:1.9;color:var(--muted);
}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;color:#fff;padding:88px 0;
  background:url(/assets/images/backpic/back-3.png) center/cover no-repeat;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(20,22,26,.95) 0%,rgba(20,22,26,.76) 60%,rgba(20,22,26,.62) 100%);
}
.cta-inner{
  position:relative;z-index:2;display:flex;align-items:center;
  justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-inner h2{
  font-size:clamp(26px,3vw,38px);font-weight:800;line-height:1.22;
  letter-spacing:-.01em;margin-bottom:12px;color:#fff;
}
.cta-inner p{max-width:560px;color:rgba(255,255,255,.72);font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 0;font-size:15px}
.footer-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;padding-bottom:56px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-text{font-size:17px}
.footer-tagline{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px}
.footer-col h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.64)}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0 28px;
  font-size:13px;color:rgba(255,255,255,.45);
}
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:46px;height:46px;border-radius:12px;background:var(--ink);color:#fff;
  border:1px solid rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s var(--ease),background .24s var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--accent);border-color:var(--accent)}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .48s var(--ease),transform .48s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .container{padding:0 24px}
  .main-nav{display:none}
  .hamburger{display:flex}
  .status-chip{display:none}
  .section{padding:72px 0}
  .scene-band,.cta-band{padding:72px 0}
  .hero{padding:48px 0 96px}
  .flow{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .scene-band,.cta-band{padding:56px 0}
  .section-head{margin-bottom:32px}
  .stats-card{grid-template-columns:repeat(2,1fr);gap:26px 0;padding:26px 4px}
  .stat{padding:0 18px}
  .stat:nth-child(2n){border-right:0}
  .card-wide{grid-template-columns:1fr}
  .card-wide-media{order:-1;min-height:220px}
  .card-wide-body{padding:28px 22px}
  .card-title{font-size:21px}
  .hero-meta{gap:6px 16px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:575px){
  .flow{grid-template-columns:1fr}
  .btn{width:100%}
  .hero-actions{flex-direction:column;align-items:stretch}
  .cta-actions{width:100%}
  .nav-inner{height:60px}
  .brand-text{font-size:16px}
  .hero-title{font-size:clamp(28px,8vw,36px)}
  .stats-card{grid-template-columns:1fr;gap:0}
  .stat{border-right:0;border-bottom:1px solid var(--line);padding:16px 18px}
  .stat:last-child{border-bottom:0}
}

/* roulang page: category4 */
:root{
  --ink:#14161A;
  --ink-2:#1F2124;
  --orange:#FF5A1F;
  --orange-deep:#E84A12;
  --orange-soft:#FF8A4C;
  --paper:#F6F3EC;
  --card:#FFFFFF;
  --line:#E4DFD5;
  --muted:#6E6A63;
  --mint:#16C79A;
  --gray:#9AA0A6;
  --danger:#E03A2F;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(20,22,26,.04), 0 10px 28px rgba(20,22,26,.05);
  --sh-2:0 18px 40px rgba(20,22,26,.10);
  --sp:24px;
  --maxw:1240px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-2);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  font-feature-settings:"tnum";
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease;}
button{font-family:inherit;cursor:pointer;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-0.01em;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 40px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
@media (min-width:1440px){.container{max-width:1320px;}}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
}
@media (max-width:575px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  body{font-size:16px;line-height:1.8;}
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(20,22,26,.94);
  border-bottom:1px solid rgba(255,255,255,.08);
  backdrop-filter:saturate(160%) blur(10px);
  transition:height .24s ease,background .24s ease;
}
.nav-wrap{display:flex;align-items:center;gap:28px;height:72px;}
.site-header.is-scrolled .nav-wrap{height:60px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:26px;height:26px;display:inline-block;position:relative;
  background:linear-gradient(135deg,var(--orange) 0%,var(--orange) 48%,#fff 48%,#fff 100%);
  clip-path:polygon(0 0,100% 0,100% 30%,38% 30%,38% 100%,0 100%);
  border-radius:3px;
}
.brand-text{color:#fff;font-size:18px;font-weight:800;letter-spacing:.01em;white-space:nowrap;}
.brand-accent{color:var(--orange);}
.main-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto;min-width:0;}
.nav-link{
  position:relative;color:rgba(255,255,255,.78);font-size:15px;font-weight:600;
  padding:8px 14px;border-radius:8px;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--orange);transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:#fff;}
.nav-link.active::after{transform:scaleX(1);}
.nav-side{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.live-pill{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;letter-spacing:.06em;color:#fff;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.16);
  padding:5px 12px;border-radius:999px;white-space:nowrap;
}
.live-dot{width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(22,199,154,.18);}
.nav-count{font-size:12px;color:rgba(255,255,255,.6);letter-spacing:.04em;white-space:nowrap;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:#fff;
  align-items:center;justify-content:center;font-size:16px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:50px;padding:0 26px;border-radius:var(--r-btn);
  font-size:16px;font-weight:700;border:1.5px solid transparent;
  transition:transform .22s ease,background .22s ease,color .22s ease,box-shadow .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 8px 20px rgba(255,90,31,.26);}
.btn-primary:hover{background:var(--orange-deep);transform:translateY(-2px);box-shadow:0 14px 28px rgba(255,90,31,.32);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px);}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.btn-ghost-light:hover{background:#fff;color:var(--ink);border-color:#fff;transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:9px;}
.nav-side .btn-sm{height:38px;}

@media (max-width:1023px){
  .live-pill,.nav-count{display:none;}
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:fixed;inset:72px 0 0 0;background:var(--ink);
    flex-direction:column;align-items:stretch;gap:0;
    padding:20px 24px 40px;transform:translateY(-12px);
    opacity:0;visibility:hidden;transition:opacity .24s ease,transform .24s ease,visibility .24s;
    overflow-y:auto;
  }
  .main-nav.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-link{padding:16px 4px;font-size:17px;border-bottom:1px solid rgba(255,255,255,.10);border-radius:0;}
  .nav-link::after{display:none;}
  .nav-link.active{color:var(--orange);}
  .nav-side .btn-sm{display:none;}
  .mobile-cta{display:flex;margin-top:24px;}
}
.mobile-cta{display:none;}

/* ============ 面包屑 ============ */
.crumb-bar{background:var(--paper);border-bottom:1px solid var(--line);}
.crumb{
  display:flex;align-items:center;gap:9px;flex-wrap:wrap;
  font-size:14px;color:var(--muted);padding:14px 0;
}
.crumb a:hover{color:var(--ink);}
.crumb .sep{color:#C6C0B4;}
.crumb .now{color:var(--ink);font-weight:700;}

/* ============ KV ============ */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(115deg,rgba(20,22,26,.94) 0%,rgba(20,22,26,.80) 52%,rgba(20,22,26,.62) 100%),
             url("/assets/images/backpic/back-2.png") center/cover no-repeat;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.05) 0 1px,transparent 1px 14px);
  opacity:.5;
}
.hero-inner{position:relative;z-index:2;padding:56px 0 64px;max-width:820px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--orange-soft);font-weight:700;
  text-transform:uppercase;margin-bottom:16px;
}
.eyebrow::before{content:"";width:24px;height:3px;background:var(--orange);display:inline-block;}
.hero-title{
  color:#fff;font-size:clamp(30px,3.6vw,46px);font-weight:900;line-height:1.14;
  letter-spacing:-0.02em;margin-bottom:18px;
}
.hero-title em{font-style:normal;color:var(--orange);}
.hero-sub{color:rgba(255,255,255,.80);font-size:17px;line-height:1.85;max-width:660px;margin-bottom:28px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:28px;}
.hero-actions .btn{height:52px;}
.badge-row{display:flex;gap:10px;flex-wrap:wrap;}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
  padding:6px 13px;border-radius:999px;
  border:1px solid rgba(255,255,255,.22);color:rgba(255,255,255,.88);
  background:rgba(255,255,255,.06);
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--mint);}
.badge.warn-soft .dot{background:var(--orange);}
@media (max-width:767px){
  .hero-inner{padding:40px 0 48px;}
  .hero-actions .btn{width:100%;}
}

/* ============ 区块标题 ============ */
.section-head{max-width:760px;margin-bottom:44px;}
.sec-num{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:.16em;
  color:var(--orange);margin-bottom:12px;
}
.sec-title{font-size:clamp(26px,3vw,38px);line-height:1.2;margin-bottom:14px;}
.sec-title .bar{display:inline-block;width:26px;height:4px;background:var(--orange);vertical-align:middle;margin-right:12px;border-radius:2px;}
.sec-desc{color:var(--muted);font-size:16.5px;margin:0;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head.center .sec-title .bar{display:none;}

/* ============ 快速定位卡片 ============ */
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.quick-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.quick-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D8D1C3;}
.thumb{position:relative;aspect-ratio:16/10;overflow:hidden;border-radius:0;background:#EDE8DD;}
.thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s cubic-bezier(.22,.61,.36,1);}
.quick-card:hover .thumb img{transform:scale(1.04);}
.heat{
  position:absolute;left:12px;top:12px;
  background:rgba(20,22,26,.82);color:#fff;font-size:12px;font-weight:600;
  padding:4px 11px;border-radius:999px;letter-spacing:.04em;
}
.heat.hot{background:var(--orange);}
.quick-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.quick-tag{font-size:12.5px;font-weight:700;color:var(--orange);letter-spacing:.08em;margin-bottom:9px;}
.quick-title{font-size:18px;font-weight:700;line-height:1.45;margin-bottom:10px;}
.quick-text{color:var(--muted);font-size:15px;line-height:1.8;margin-bottom:18px;}
.quick-link{
  margin-top:auto;font-size:14.5px;font-weight:700;color:var(--ink);
  display:inline-flex;align-items:center;gap:8px;
}
.quick-link i{transition:transform .22s ease;color:var(--orange);}
.quick-card:hover .quick-link{color:var(--orange);}
.quick-card:hover .quick-link i{transform:translateX(4px);}
@media (max-width:1023px){.quick-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:639px){.quick-grid{grid-template-columns:1fr;}}

/* ============ 对照区 ============ */
.compare-wrap{
  display:grid;grid-template-columns:1fr 56px 1fr;align-items:stretch;gap:0;
  background:var(--card);border:1px solid var(--line);border-radius:20px;overflow:hidden;
  box-shadow:var(--sh-1);
}
.compare-col{padding:38px 36px 40px;}
.compare-col h3{font-size:20px;margin-bottom:6px;display:flex;align-items:center;gap:10px;}
.compare-col .col-note{font-size:14px;color:var(--muted);margin-bottom:22px;}
.tag-ico{
  width:28px;height:28px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;color:#fff;flex:0 0 auto;
}
.tag-ico.ok{background:var(--mint);}
.tag-ico.no{background:var(--gray);}
.compare-divider{
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(180deg,rgba(246,243,236,.2),rgba(246,243,236,.9),rgba(246,243,236,.2));
  border-left:1px solid var(--line);border-right:1px solid var(--line);
  font-size:22px;font-weight:800;color:#C6C0B4;
}
.c-list li{
  position:relative;padding:14px 0 14px 26px;border-bottom:1px dashed var(--line);
  font-size:15.5px;line-height:1.8;
}
.c-list li:last-child{border-bottom:0;}
.c-list li::before{
  content:"";position:absolute;left:0;top:22px;width:10px;height:10px;border-radius:3px;
}
.c-list.ok li::before{background:var(--mint);}
.c-list.no li::before{background:var(--orange);}
.c-list li strong{color:var(--ink);font-weight:700;}
.c-list li span{display:block;color:var(--muted);font-size:14px;margin-top:3px;}
@media (max-width:900px){
  .compare-wrap{grid-template-columns:1fr;}
  .compare-divider{border-left:0;border-right:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);height:48px;font-size:20px;}
  .compare-col{padding:28px 22px 30px;}
}

/* ============ 参数对照 ============ */
.params-panel{
  background:var(--ink);border-radius:20px;padding:44px 40px;color:#fff;
  position:relative;overflow:hidden;
}
.params-panel::before{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,31,.28),transparent 68%);
}
.params-head{position:relative;z-index:2;margin-bottom:28px;}
.params-head h2{color:#fff;font-size:clamp(24px,2.6vw,32px);margin-bottom:10px;}
.params-head p{color:rgba(255,255,255,.66);font-size:15.5px;max-width:620px;margin:0;}
.params-list{position:relative;z-index:2;display:grid;grid-template-columns:repeat(2,1fr);gap:0 40px;}
.param-row{
  display:flex;align-items:baseline;justify-content:space-between;gap:20px;
  padding:17px 0;border-bottom:1px solid rgba(255,255,255,.12);
}
.param-key{color:rgba(255,255,255,.68);font-size:15px;}
.param-val{color:#fff;font-weight:700;font-size:16px;text-align:right;}
.param-val em{font-style:normal;color:var(--orange-soft);}
@media (max-width:900px){.params-list{grid-template-columns:1fr;}.params-panel{padding:32px 22px;}}
@media (max-width:575px){
  .param-row{flex-direction:column;align-items:flex-start;gap:4px;}
  .param-val{text-align:left;}
}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;
  display:flex;align-items:center;gap:18px;
  padding:24px 4px;min-height:68px;
  font-size:17.5px;font-weight:700;color:var(--ink);line-height:1.6;
  transition:color .22s ease;
}
.faq-q:hover{color:var(--orange);}
.faq-q .q-index{
  font-size:13px;font-weight:800;color:var(--orange);letter-spacing:.08em;
  flex:0 0 34px;
}
.faq-q .q-text{flex:1 1 auto;}
.faq-q .q-arrow{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;
  color:var(--muted);font-size:12px;transition:transform .3s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.faq-item.open .faq-q .q-arrow{transform:rotate(90deg);background:var(--orange);border-color:var(--orange);color:#fff;}
.faq-a{
  display:none;padding:0 4px 26px 56px;color:var(--muted);font-size:15.8px;line-height:1.9;
}
.faq-item.open .faq-a{display:block;animation:fadeIn .32s ease;}
.faq-a strong{color:var(--ink);}
.faq-a ul{margin:12px 0 0;}
.faq-a ul li{position:relative;padding-left:20px;margin-bottom:8px;}
.faq-a ul li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;background:var(--orange);border-radius:2px;
}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:translateY(0);}}
@media (max-width:767px){
  .faq-q{font-size:16px;padding:20px 2px;gap:12px;}
  .faq-q .q-index{flex-basis:26px;}
  .faq-a{padding:0 2px 22px 2px;}
}

/* ============ 深色检查带 ============ */
.check-band{
  background:var(--ink);color:#fff;position:relative;overflow:hidden;
}
.check-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.045) 0 1px,transparent 1px 16px);
}
.check-inner{position:relative;z-index:2;padding:76px 0;display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;}
.check-band h2{color:#fff;font-size:clamp(24px,2.6vw,32px);margin-bottom:14px;}
.check-band p{color:rgba(255,255,255,.68);font-size:15.5px;}
.seg-progress{display:flex;gap:10px;margin:26px 0 14px;}
.seg{flex:1 1 0;height:8px;border-radius:999px;background:rgba(255,255,255,.16);}
.seg.on{background:linear-gradient(90deg,var(--orange),var(--orange-soft));}
.prog-note{font-size:13.5px;color:rgba(255,255,255,.6);letter-spacing:.04em;}
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
.check-item{
  display:flex;gap:12px;align-items:flex-start;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  border-radius:14px;padding:16px 18px;
  transition:background .22s ease,transform .22s ease;
}
.check-item:hover{background:rgba(255,255,255,.10);transform:translateY(-2px);}
.check-item i{color:var(--mint);font-size:15px;margin-top:5px;}
.check-item b{display:block;color:#fff;font-size:15.5px;margin-bottom:2px;}
.check-item span{color:rgba(255,255,255,.62);font-size:13.5px;line-height:1.7;}
@media (max-width:900px){
  .check-inner{grid-template-columns:1fr;gap:32px;padding:56px 0;}
  .check-list{grid-template-columns:1fr;}
}

/* ============ CTA ============ */
.cta-band{
  background:linear-gradient(120deg,#14161A 0%,#1F2124 58%,#26292F 100%);
  color:#fff;border-radius:20px;padding:56px 48px;
  display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;left:-40px;bottom:-70px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,31,.30),transparent 70%);
}
.cta-band h2{color:#fff;font-size:clamp(24px,2.8vw,34px);line-height:1.25;margin-bottom:14px;position:relative;z-index:2;}
.cta-band p{color:rgba(255,255,255,.72);font-size:15.5px;margin:0;position:relative;z-index:2;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end;position:relative;z-index:2;}
@media (max-width:900px){
  .cta-band{grid-template-columns:1fr;padding:40px 24px;gap:26px;}
  .cta-actions{justify-content:flex-start;}
  .cta-actions .btn{width:100%;}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);margin-top:96px;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{font-size:18px;}
.footer-tagline{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.60);max-width:340px;margin:0;}
.footer-col h3{color:#fff;font-size:15px;letter-spacing:.06em;margin-bottom:18px;font-weight:700;}
.footer-links li{margin-bottom:11px;}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.66);}
.footer-links a:hover{color:var(--orange);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.50);
}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media (max-width:575px){.footer-grid{grid-template-columns:1fr;}.site-footer{margin-top:56px;}}

/* ============ 回到顶部 ============ */
.back-top{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:46px;height:46px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .26s ease,transform .26s ease,visibility .26s,background .22s ease,color .22s ease;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.back-top:hover{background:var(--orange);color:#fff;border-color:var(--orange);}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .48s cubic-bezier(.22,.61,.36,1),transform .48s cubic-bezier(.22,.61,.36,1);}
.reveal.in{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --ink:#14161A;
  --ink-soft:#22252B;
  --accent:#FF5A1F;
  --accent-dark:#E84A12;
  --accent-soft:#FF8A4C;
  --sand:#F6F3EC;
  --sand-deep:#FBFAF6;
  --card:#FFFFFF;
  --line:#E4DFD5;
  --muted:#6E6A63;
  --text:#1F2124;
  --mint:#16C79A;
  --grey:#9AA0A6;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(20,22,26,.04), 0 10px 28px rgba(20,22,26,.05);
  --shadow-2:0 18px 40px rgba(20,22,26,.10);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.88;
  color:var(--text);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-img);}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--accent-dark);}
button{font:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-family:inherit;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--accent);color:#fff;padding:10px 18px;z-index:999;}
.skip-link:focus{left:12px;top:12px;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 40px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--ink);
  color:#fff;
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:box-shadow .28s ease, background .28s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(20,22,26,.28);background:#101216;}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height .26s ease;}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:19px;letter-spacing:-.02em;white-space:nowrap;}
.brand:hover{color:#fff;}
.brand-mark{
  width:18px;height:18px;flex:0 0 18px;background:var(--accent);
  clip-path:polygon(0 0,100% 0,72% 100%,0 100%);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;left:0;bottom:0;width:60%;height:35%;
  background:var(--ink);
}
.brand-accent{color:var(--accent);}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px;}
.nav-link{
  position:relative;display:inline-block;padding:9px 13px;font-size:15px;
  color:rgba(255,255,255,.74);border-radius:8px;
  transition:color .22s ease, background .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .24s cubic-bezier(.22,.61,.36,1);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:#fff;font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.nav-side{margin-left:auto;display:flex;align-items:center;gap:16px;}
.status-pill{
  display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:600;
  color:rgba(255,255,255,.86);padding:5px 12px;border-radius:999px;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.04);
}
.dot{width:7px;height:7px;border-radius:50%;background:var(--mint);display:inline-block;animation:pulse 2.2s infinite;}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(22,199,154,.55);}
  70%{box-shadow:0 0 0 8px rgba(22,199,154,0);}
  100%{box-shadow:0 0 0 0 rgba(22,199,154,0);}
}
.countdown{font-size:12.5px;color:rgba(255,255,255,.6);font-variant-numeric:tabular-nums;}
.countdown b{color:#fff;font-weight:700;letter-spacing:.02em;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  align-items:center;justify-content:center;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;
  transition:transform .2s ease;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-mask{
  position:fixed;inset:0;background:rgba(20,22,26,.55);z-index:85;
  opacity:0;pointer-events:none;transition:opacity .24s ease;
}
body.nav-open .nav-mask{opacity:1;pointer-events:auto;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:15.5px;font-weight:700;letter-spacing:.01em;
  border:1.5px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease, background .2s ease, color .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(255,90,31,.28);}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,90,31,.34);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(255,90,31,.26);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4);}
.btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff;}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-outline:hover{background:var(--ink);color:#fff;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:9px;}
.btn-link{
  display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--accent-dark);
  font-size:15px;
}
.btn-link .arrow{transition:transform .22s ease;}
.btn-link:hover .arrow{transform:translateX(4px);}

/* ---------- 通用板块 ---------- */
.section{padding:104px 0;}
.section--tight{padding:80px 0;}
.section--ink{background:var(--ink);color:rgba(255,255,255,.78);}
.section--ink h2,.section--ink h3{color:#fff;}
.section-head{max-width:760px;margin-bottom:52px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.kicker{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.1em;
  color:var(--accent);text-transform:uppercase;margin-bottom:14px;
}
.section-title{
  display:flex;align-items:baseline;gap:14px;
  font-size:clamp(28px,3.2vw,40px);font-weight:700;line-height:1.2;
}
.section-title .num{
  font-size:.58em;font-weight:800;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.section-desc{margin-top:16px;color:var(--muted);font-size:16.5px;line-height:1.9;max-width:720px;}
.section--ink .section-desc{color:rgba(255,255,255,.66);}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;align-items:center;gap:10px;font-size:14px;
  color:rgba(255,255,255,.58);margin-bottom:28px;
}
.breadcrumb a{color:rgba(255,255,255,.58);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .current{color:#fff;font-weight:600;}

/* ---------- Hero ---------- */
.hero{
  position:relative;background:var(--ink);color:#fff;
  padding:56px 0 96px;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  opacity:.2;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(112deg, rgba(20,22,26,.97) 0%, rgba(20,22,26,.9) 48%, rgba(20,22,26,.72) 100%);
}
.hero .container{position:relative;z-index:2;}
.hero h1{
  color:#fff;font-size:clamp(38px,5vw,62px);font-weight:900;line-height:1.08;
  letter-spacing:-.025em;
}
.hero h1 em{font-style:normal;color:var(--accent);}
.hero-sub{margin-top:22px;font-size:17.5px;line-height:1.9;color:rgba(255,255,255,.74);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;padding:6px 14px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.82);
  background:rgba(255,255,255,.05);
}
.chip--live{border-color:rgba(255,90,31,.5);color:#FFB695;background:rgba(255,90,31,.12);}
.chip--open{border-color:rgba(22,199,154,.45);color:#7CE6C7;background:rgba(22,199,154,.1);}
.chip .dot{animation:none;box-shadow:none;}
.hero-media{position:relative;margin-top:44px;}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:18px;
  box-shadow:0 30px 60px rgba(0,0,0,.35);
}
.float-card{
  position:absolute;left:22px;bottom:-28px;width:min(320px,86%);
  background:#fff;color:var(--text);border-radius:14px;padding:20px 22px;
  box-shadow:var(--shadow-2);
}
.float-card .fc-label{font-size:12.5px;letter-spacing:.08em;color:var(--muted);font-weight:700;}
.float-card .fc-value{
  font-size:34px;font-weight:800;line-height:1.1;color:var(--ink);
  font-variant-numeric:tabular-nums;margin-top:6px;letter-spacing:-.02em;
}
.float-card .fc-value small{font-size:14px;font-weight:600;color:var(--muted);margin-left:6px;}
.fc-track{display:flex;gap:6px;margin-top:14px;}
.fc-seg{flex:1;height:6px;border-radius:999px;background:var(--line);overflow:hidden;position:relative;}
.fc-seg.done{background:linear-gradient(90deg,var(--accent),var(--accent-soft));}
.fc-seg.current::after{
  content:"";position:absolute;inset:0;width:55%;border-radius:999px;
  background:linear-gradient(90deg,var(--accent),var(--accent-soft));
}

/* ---------- 进度总览 ---------- */
.panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:40px;box-shadow:var(--shadow-1);
}
.panel-head{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:flex-end;}
.panel-head h3{font-size:21px;font-weight:700;}
.panel-head .panel-note{font-size:14px;color:var(--muted);}
.seg-track{display:flex;gap:10px;margin-top:30px;}
.seg{
  flex:1;height:10px;border-radius:999px;background:var(--line);
  position:relative;overflow:hidden;
}
.seg.done{background:linear-gradient(90deg,var(--accent),var(--accent-soft));}
.seg.current::after{
  content:"";position:absolute;inset:0;width:55%;border-radius:999px;
  background:linear-gradient(90deg,var(--accent),var(--accent-soft));
}
.seg-labels{display:flex;justify-content:space-between;margin-top:14px;font-size:13px;color:var(--muted);letter-spacing:.03em;}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:44px;border-top:1px solid var(--line);padding-top:36px;}
.stat-num{
  font-size:clamp(38px,4.4vw,60px);font-weight:800;line-height:1;
  letter-spacing:-.03em;color:var(--ink);font-variant-numeric:tabular-nums;
}
.stat-num span{font-size:.36em;font-weight:700;color:var(--muted);margin-left:6px;letter-spacing:0;}
.stat-label{margin-top:10px;font-size:13.5px;color:var(--muted);letter-spacing:.04em;}

/* ---------- 时间线 ---------- */
.timeline{position:relative;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;left:19px;top:10px;bottom:34px;width:2px;
  background:var(--line);
}
.tl-item{position:relative;padding-left:64px;padding-bottom:40px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;
  background:var(--card);border:2px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-size:13.5px;font-weight:800;color:var(--muted);
  font-variant-numeric:tabular-nums;z-index:2;
}
.tl-item.is-done .tl-dot{border-color:var(--accent);color:var(--accent-dark);background:#FFF4EF;}
.tl-item.is-live .tl-dot{border-color:var(--accent);background:var(--accent);color:#fff;}
.tl-item.is-open .tl-dot{border-color:var(--mint);color:#0F9E79;background:#EDFBF6;}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 28px;box-shadow:var(--shadow-1);
  transition:transform .24s ease, box-shadow .24s ease, border-color .24s ease;
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D8D2C6;}
.tl-top{display:flex;flex-wrap:wrap;align-items:center;gap:14px;justify-content:space-between;}
.tl-card h3{font-size:19px;font-weight:700;}
.tl-card p{margin-top:12px;color:var(--muted);font-size:15.5px;line-height:1.85;}
.tl-meta{margin-top:16px;display:flex;flex-wrap:wrap;gap:20px;font-size:13px;color:var(--muted);letter-spacing:.03em;}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:700;line-height:1.7;white-space:nowrap;
}
.tag--live{background:rgba(255,90,31,.12);color:var(--accent-dark);}
.tag--open{background:rgba(22,199,154,.14);color:#0F9E79;}
.tag--done{background:#EFEDE7;color:var(--muted);}
.tag--pending{background:#F2F1EE;color:var(--grey);}

/* ---------- 表格 ---------- */
.table-wrap{
  overflow-x:auto;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);
  -webkit-overflow-scrolling:touch;
}
table.data-table{width:100%;min-width:880px;border-collapse:collapse;font-size:15px;}
.data-table th{
  text-align:left;padding:18px 22px;font-size:13px;font-weight:700;
  letter-spacing:.08em;color:var(--muted);background:var(--sand-deep);
  border-bottom:1px solid var(--line);white-space:nowrap;
}
.data-table td{padding:20px 22px;border-bottom:1px solid var(--line);vertical-align:top;color:var(--text);}
.data-table tbody tr:last-child td{border-bottom:none;}
.data-table tbody tr:nth-child(even){background:var(--sand-deep);}
.data-table td:first-child,.data-table th:first-child{
  font-weight:700;position:sticky;left:0;z-index:2;background:var(--card);
}
.data-table tbody tr:nth-child(even) td:first-child{background:var(--sand-deep);}
.data-table td:first-child{color:var(--ink);}
.data-table .cell-sub{display:block;font-weight:400;color:var(--muted);font-size:13.5px;margin-top:4px;}

/* ---------- 自查清单 ---------- */
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.check-list{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:8px 28px;box-shadow:var(--shadow-1);}
.check-item{
  display:flex;gap:16px;align-items:flex-start;padding:20px 0;
  border-bottom:1px solid var(--line);
}
.check-item:last-child{border-bottom:none;}
.check-box{
  width:26px;height:26px;flex:0 0 26px;border-radius:8px;border:1.5px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;color:transparent;
  margin-top:2px;transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.check-item.done .check-box{background:var(--accent);border-color:var(--accent);color:#fff;}
.check-item.open .check-box{border-color:var(--mint);color:var(--mint);}
.check-body{flex:1;}
.check-body strong{display:block;font-size:16px;font-weight:700;color:var(--ink);}
.check-body span{display:block;font-size:14px;color:var(--muted);margin-top:4px;line-height:1.8;}
.check-tag{margin-left:auto;flex:0 0 auto;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:18px;
  padding:26px 4px;font-size:17.5px;font-weight:700;color:var(--ink);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";margin-left:auto;width:11px;height:11px;flex:0 0 11px;
  border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);
  transform:rotate(-45deg);transition:transform .24s ease,border-color .2s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);border-color:var(--accent);}
.faq-item summary:hover{color:var(--accent-dark);}
.faq-item .faq-answer{padding:0 4px 28px 34px;color:var(--muted);font-size:15.5px;line-height:1.95;}
.faq-q-index{font-size:13px;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;flex:0 0 auto;}

/* ---------- CTA ---------- */
.cta-band{position:relative;background:var(--ink);color:#fff;padding:92px 0;overflow:hidden;}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;opacity:.14;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg, rgba(20,22,26,.94), rgba(20,22,26,.82));
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:36px;align-items:center;justify-content:space-between;}
.cta-band h2{color:#fff;font-size:clamp(28px,3.4vw,42px);font-weight:800;line-height:1.18;letter-spacing:-.02em;}
.cta-band p{margin-top:16px;color:rgba(255,255,255,.7);max-width:620px;font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#101216;color:rgba(255,255,255,.62);padding:76px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px;padding-bottom:56px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;letter-spacing:-.02em;}
.footer-tagline{margin-top:18px;font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.58);max-width:360px;}
.footer-col h3{font-size:14px;font-weight:700;color:#fff;letter-spacing:.08em;margin-bottom:18px;}
.footer-links li{margin-bottom:11px;}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.6);transition:color .2s ease,padding-left .2s ease;}
.footer-links a:hover{color:#fff;padding-left:4px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:24px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.42);
}
.back-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:14px;
  background:var(--ink);color:#fff;border:none;display:flex;align-items:center;justify-content:center;
  font-size:18px;opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity .25s ease,transform .25s ease,background .2s ease;z-index:70;
  box-shadow:0 12px 28px rgba(20,22,26,.26);
}
.back-top.show{opacity:1;pointer-events:auto;transform:translateY(0);}
.back-top:hover{background:var(--accent);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .48s cubic-bezier(.22,.61,.36,1),transform .48s cubic-bezier(.22,.61,.36,1);}
.reveal.in{opacity:1;transform:none;}

/* ---------- 栅格 gutter ---------- */
.grid-x.gutter{margin-left:-16px;margin-right:-16px;}
.grid-x.gutter>.cell{padding-left:16px;padding-right:16px;}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .container{padding:0 32px;}
  .nav-link{padding:9px 10px;font-size:14.5px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:min(330px,86vw);
    background:#101216;flex-direction:column;align-items:stretch;gap:0;
    padding:88px 24px 32px;margin:0;transform:translateX(100%);
    transition:transform .24s ease;z-index:90;overflow-y:auto;
  }
  body.nav-open .main-nav{transform:translateX(0);}
  .nav-link{padding:16px 6px;font-size:17px;border-bottom:1px solid rgba(255,255,255,.08);border-radius:0;}
  .nav-link::after{display:none;}
  .nav-link.active{color:var(--accent);}
  .countdown{display:none;}
  .check-grid{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .stats{grid-template-columns:repeat(2,1fr);gap:28px;}
  .section{padding:80px 0;}
  .panel{padding:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .hero{padding:36px 0 72px;}
  .hero-media{margin-top:32px;}
  .float-card{position:static;width:100%;margin-top:16px;box-shadow:var(--shadow-1);}
  .hero-media img{aspect-ratio:16/12;}
  .section{padding:64px 0;}
  .section-head{margin-bottom:36px;}
  .panel{padding:24px;}
  .seg-track{gap:6px;}
  .seg-labels{font-size:12px;}
  .tl-item{padding-left:52px;}
  .tl-dot{width:34px;height:34px;font-size:12.5px;}
  .timeline::before{left:16px;}
  .tl-card{padding:20px;}
  .cta-band{padding:68px 0;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:575px){
  .hero h1{font-size:34px;}
  .hero-sub{font-size:16px;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .stats{grid-template-columns:1fr;gap:24px;}
  .stat-num{font-size:40px;}
  .btn{height:48px;padding:0 22px;}
  .section-title{flex-direction:column;gap:6px;}
  .faq-item summary{font-size:16px;padding:22px 2px;gap:12px;}
  .faq-item .faq-answer{padding-left:2px;}
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}