/* roulang page: index */
:root{
  --bg-0:#0A0710;
  --bg-1:#140B1B;
  --bg-2:#1D1124;
  --brand:#E5386F;
  --brand-hi:#FF5C8A;
  --brand-grad:linear-gradient(100deg,#E5386F 0%,#FF7A5E 100%);
  --accent:#F2C879;
  --mint:#46D8B4;
  --danger:#FF6B6B;
  --t1:#F7F2F6;
  --t2:#BFAFBD;
  --t3:#8A7C8C;
  --glass:rgba(255,255,255,.055);
  --glass-strong:rgba(255,255,255,.085);
  --glass-bd:rgba(255,255,255,.10);
  --line:rgba(255,255,255,.08);
  --r-card:18px;
  --r-btn:999px;
  --r-input:12px;
  --r-img:14px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.08);
  --shadow-card-hover:0 26px 54px rgba(0,0,0,.55), 0 0 0 1px rgba(229,56,111,.22), inset 0 1px 0 rgba(255,255,255,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --side:240px;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  color:var(--t1);
  background:
    radial-gradient(900px 620px at 10% -8%,rgba(229,56,111,.18),transparent 62%),
    radial-gradient(780px 540px at 94% 6%,rgba(242,200,121,.10),transparent 66%),
    var(--bg-0);
  background-attachment:fixed;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;line-height:1.25;color:var(--t1)}
h1{font-size:clamp(30px,4.6vw,52px);font-weight:800;line-height:1.15;letter-spacing:-.5px}
h2{font-size:clamp(24px,3vw,34px);font-weight:700;letter-spacing:-.3px}
h3{font-size:19px;font-weight:600;line-height:1.45}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--brand);text-decoration:none;transition:color 220ms var(--ease)}
a:hover{color:var(--brand-hi)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(229,56,111,.28);border-radius:6px}

/* ===== 布局骨架 ===== */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.page{margin-left:var(--side);min-height:100vh;overflow-x:clip}
.section{padding:96px 0;position:relative}
.section--tight{padding:72px 0}
.section--flush{padding-bottom:0}

.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.14em;color:var(--accent);margin-bottom:14px}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--brand);display:block}
.section-head{max-width:760px;margin-bottom:44px}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;max-width:none}
.section-desc{margin-top:14px;font-size:15.5px;line-height:1.9;color:var(--t2)}

/* ===== 侧栏导航 ===== */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--side);height:100vh;z-index:60;
  display:flex;flex-direction:column;gap:14px;
  padding:26px 18px 22px;overflow-y:auto;
  background:linear-gradient(180deg,rgba(29,17,36,.88),rgba(20,11,27,.80));
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  border-right:1px solid var(--glass-bd);
}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--t1);letter-spacing:.2px;padding:4px 8px 4px 4px;border-radius:14px}
.logo:hover{color:var(--t1)}
.logo-mark{width:34px;height:34px;flex:0 0 34px;border-radius:11px;background:var(--brand-grad);display:grid;place-items:center;font-size:12.5px;font-weight:800;color:#fff;letter-spacing:.5px;box-shadow:0 8px 20px rgba(229,56,111,.42)}
.side-divider{height:1px;background:linear-gradient(90deg,rgba(255,255,255,.14),transparent);margin:6px 0 10px}
.nav-label{font-size:11.5px;letter-spacing:.16em;color:var(--t3);padding:0 12px 8px}
.nav-group{display:flex;flex-direction:column;gap:4px}
.nav-link{
  position:relative;display:flex;align-items:center;gap:10px;min-height:44px;
  padding:10px 14px;border-radius:12px;font-size:14.5px;color:var(--t2);
  transition:background 220ms var(--ease),color 220ms var(--ease),transform 220ms var(--ease);
}
.nav-link:hover{background:var(--glass);color:var(--t1);transform:translateX(2px)}
.nav-link.active{background:var(--glass-strong);color:var(--t1);font-weight:600}
.nav-link.active::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:2px;height:18px;border-radius:2px;background:var(--brand);box-shadow:0 0 10px rgba(229,56,111,.85)}
.nav-dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 8px rgba(229,56,111,.9);flex:0 0 6px}
.nav-dot.gold{background:var(--accent);box-shadow:0 0 8px rgba(242,200,121,.8)}
.nav-dot.mint{background:var(--mint);box-shadow:0 0 8px rgba(70,216,180,.8)}
.side-cta{margin-top:auto;padding-top:22px;display:flex;flex-direction:column;gap:10px}
.side-note{font-size:12.5px;color:var(--t3);line-height:1.8;padding:0 4px}

/* ===== 顶部栏（移动端） ===== */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:62px;z-index:70;
  align-items:center;justify-content:space-between;padding:0 18px;
  border-bottom:1px solid transparent;
  transition:background 220ms var(--ease),border-color 220ms var(--ease);
}
.topbar.scrolled{background:rgba(20,11,27,.86);backdrop-filter:blur(18px) saturate(120%);-webkit-backdrop-filter:blur(18px) saturate(120%);border-bottom-color:var(--glass-bd)}
.burger{width:44px;height:44px;border:1px solid var(--glass-bd);border-radius:12px;background:var(--glass);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;transition:background 220ms var(--ease)}
.burger:hover{background:var(--glass-strong)}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t1);transition:transform 220ms var(--ease),opacity 220ms var(--ease)}
.burger.active span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger.active span:nth-child(2){opacity:0}
.burger.active span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.drawer{
  position:fixed;top:0;right:0;height:100vh;width:280px;z-index:90;
  display:flex;flex-direction:column;gap:20px;padding:22px 18px;overflow-y:auto;
  background:linear-gradient(180deg,rgba(29,17,36,.97),rgba(20,11,27,.97));
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-left:1px solid var(--glass-bd);
  transform:translateX(100%);
  transition:transform 300ms var(--ease);
}
.drawer.open{transform:translateX(0)}
.scrim{position:fixed;inset:0;z-index:85;background:rgba(10,7,16,.72);opacity:0;visibility:hidden;transition:opacity 300ms var(--ease),visibility 300ms var(--ease)}
.scrim.show{opacity:1;visibility:visible}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;white-space:nowrap;cursor:pointer;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),background 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease);
}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 12px 28px rgba(229,56,111,.34)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 38px rgba(229,56,111,.50)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 8px 18px rgba(229,56,111,.32)}
.btn-secondary{background:transparent;border-color:var(--glass-bd);color:var(--t1)}
.btn-secondary:hover{background:rgba(255,255,255,.08);color:var(--t1);transform:translateY(-2px)}
.btn-secondary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:transparent;color:var(--brand);padding:0 2px;min-height:auto}
.btn-ghost::after{content:"›";margin-left:6px;font-size:17px;line-height:1;transition:transform 220ms var(--ease)}
.btn-ghost:hover{color:var(--brand-hi)}
.btn-ghost:hover::after{transform:translateX(6px)}
.btn:disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none!important;box-shadow:none}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;align-items:center;gap:7px;padding:6px 14px;border-radius:999px;
  font-size:12.5px;line-height:1.6;color:var(--accent);
  background:var(--glass);border:1px solid var(--glass-bd);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.badge-brand{color:var(--brand-hi)}
.badge-mint{color:var(--mint)}
.dot{width:7px;height:7px;border-radius:50%;flex:0 0 7px}
.dot-mint{background:var(--mint);box-shadow:0 0 8px rgba(70,216,180,.85)}
.dot-gold{background:var(--accent);box-shadow:0 0 8px rgba(242,200,121,.8)}

/* ===== 卡片通用 ===== */
.card{
  position:relative;border-radius:var(--r-card);padding:26px;
  background:linear-gradient(180deg,rgba(255,255,255,.062),rgba(255,255,255,.028));
  border:1px solid var(--glass-bd);
  box-shadow:var(--shadow-card);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
  overflow:hidden;
}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.34),transparent)}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover)}
.card-title{font-size:17px;font-weight:600;line-height:1.5;color:var(--t1)}
.card-text{margin-top:10px;font-size:14px;line-height:1.85;color:var(--t2)}

/* ===== Hero ===== */
.hero{position:relative;min-height:76vh;display:flex;align-items:center;padding:96px 0;overflow:hidden;border-bottom:1px solid var(--glass-bd)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.26}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(760px 540px at 16% 26%,rgba(229,56,111,.30),transparent 64%),
    radial-gradient(560px 420px at 88% 74%,rgba(242,200,121,.12),transparent 68%),
    linear-gradient(180deg,rgba(10,7,16,.58),rgba(10,7,16,.94));
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.06fr .94fr;gap:48px;align-items:center}
.hero h1{margin-top:20px;max-width:12.5em}
.hero-sub{margin-top:20px;max-width:30em;font-size:16.5px;line-height:1.9;color:var(--t2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:34px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
.hero-metrics .m-num{font-size:22px;font-weight:800;color:var(--accent);line-height:1.2}
.hero-metrics .m-label{margin-top:2px;font-size:13px;color:var(--t3)}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:20px;border:1px solid var(--glass-bd);box-shadow:var(--shadow-card)}
.float-card{
  position:absolute;left:-20px;bottom:-24px;display:flex;align-items:center;gap:12px;
  padding:14px 20px;border-radius:16px;
  background:rgba(29,17,36,.80);border:1px solid var(--glass-bd);
  backdrop-filter:blur(18px) saturate(120%);-webkit-backdrop-filter:blur(18px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.float-card strong{font-size:22px;font-weight:800;color:var(--accent);line-height:1.2}
.float-card span{display:block;font-size:12.5px;color:var(--t3);line-height:1.6}

/* ===== 能力 / 非对称栅格 ===== */
.cap-grid{display:grid;grid-template-columns:1.12fr 1fr;gap:24px;align-items:start}
.cap-lead{display:flex;flex-direction:column;padding:0;overflow:hidden}
.cap-lead-media{position:relative;aspect-ratio:16/9;background:var(--bg-2);overflow:hidden}
.cap-lead-media img{width:100%;height:100%;object-fit:cover;border-radius:0}
.cap-lead-body{padding:26px;display:flex;flex-direction:column;gap:12px;flex:1}
.cap-lead-body .card-text{max-width:34em}
.cap-lead .btn-ghost{align-self:flex-start;margin-top:auto;padding-top:6px}
.cap-stack{display:flex;flex-direction:column;gap:24px}
.cap-mini{display:flex;gap:16px;align-items:flex-start;padding:22px}
.cap-icon{
  flex:0 0 44px;width:44px;height:44px;border-radius:13px;
  display:grid;place-items:center;font-size:17px;font-weight:800;color:var(--brand-hi);
  background:rgba(229,56,111,.14);border:1px solid rgba(229,56,111,.28);
}
.cap-mini h3{font-size:16.5px;font-weight:600}
.cap-mini p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--t2)}

/* ===== 数据条 ===== */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  padding:38px 34px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--glass-bd);
  backdrop-filter:blur(18px) saturate(120%);-webkit-backdrop-filter:blur(18px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.stat-num{font-size:clamp(28px,3.4vw,44px);font-weight:800;line-height:1.1;color:var(--accent);letter-spacing:-.5px}
.stat-num small{font-size:.46em;font-weight:600;margin-left:4px;color:var(--t2)}
.stat-label{margin-top:10px;font-size:14px;line-height:1.8;color:var(--t2)}

/* ===== 案例 ===== */
.case-row{display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:center;margin-bottom:52px}
.case-row:last-of-type{margin-bottom:36px}
.case-row.reverse .case-media{order:2}
.case-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.case-body h3{margin-top:16px;font-size:22px;font-weight:700;line-height:1.4}
.case-body p{margin-top:14px;font-size:15px;line-height:1.9;color:var(--t2)}
.case-body .btn-ghost{margin-top:18px;padding:0}
.case-more{text-align:center}

/* ===== 方案 ===== */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;margin-top:8px}
.plan-card{display:flex;flex-direction:column;padding:30px 26px;min-height:100%}
.plan-card.featured{
  transform:translateY(-12px);
  border-color:rgba(229,56,111,.48);
  box-shadow:0 26px 56px rgba(0,0,0,.55),0 0 0 1px rgba(229,56,111,.28),inset 0 1px 0 rgba(255,255,255,.10);
}
.plan-card.featured:hover{transform:translateY(-15px)}
.plan-tag{position:absolute;top:18px;right:18px}
.plan-name{font-size:15px;color:var(--t3);letter-spacing:.08em}
.plan-price{margin-top:12px;font-size:26px;font-weight:800;color:var(--t1);line-height:1.3}
.plan-price small{font-size:13px;font-weight:500;color:var(--t3);margin-left:6px}
.plan-list{margin-top:22px;padding-top:22px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:12px;flex:1}
.plan-list li{position:relative;padding-left:26px;font-size:14px;line-height:1.8;color:var(--t2)}
.plan-list li::before{content:"";position:absolute;left:2px;top:11px;width:12px;height:7px;border-left:2px solid var(--mint);border-bottom:2px solid var(--mint);transform:rotate(-45deg)}
.plan-card .btn{margin-top:26px;width:100%}

/* ===== 最新信息 CMS ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;border-radius:var(--r-card);overflow:hidden;
  background:linear-gradient(180deg,rgba(255,255,255,.062),rgba(255,255,255,.026));
  border:1px solid var(--glass-bd);box-shadow:var(--shadow-card);color:var(--t1);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);color:var(--t1)}
.news-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.news-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform 300ms var(--ease)}
.news-card:hover .news-media img{transform:scale(1.03)}
.news-cat{
  position:absolute;left:12px;top:12px;padding:4px 12px;border-radius:999px;font-size:12px;line-height:1.7;
  color:var(--accent);background:rgba(20,11,27,.62);border:1px solid var(--glass-bd);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-title{
  font-size:16.5px;font-weight:600;line-height:1.55;color:var(--t1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color 220ms var(--ease);
}
.news-card:hover .news-title{color:var(--brand-hi)}
.news-excerpt{
  font-size:13.5px;line-height:1.8;color:var(--t2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--t3)}
.news-foot .arrow{color:var(--brand);font-size:16px;line-height:1;transition:transform 220ms var(--ease)}
.news-card:hover .news-foot .arrow{transform:translateX(5px)}
.empty-state{
  grid-column:1/-1;min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  text-align:center;padding:32px;border-radius:var(--r-card);
  border:1px dashed var(--glass-bd);background:var(--glass);
}
.empty-icon{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-size:20px;color:var(--brand-hi);background:rgba(229,56,111,.14);border:1px solid rgba(229,56,111,.26)}
.empty-state p{font-size:14px;color:var(--t2)}

/* ===== FAQ ===== */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{
  border:1px solid var(--glass-bd);border-left:1px solid var(--glass-bd);
  border-radius:16px;background:var(--glass);margin-bottom:12px;overflow:hidden;
  transition:background 220ms var(--ease),border-color 220ms var(--ease);
}
.faq-item:hover{background:var(--glass-strong)}
.faq-item.open{background:var(--glass-strong);border-left:1px solid var(--brand)}
.faq-q{
  display:flex;align-items:center;gap:14px;width:100%;min-height:56px;
  padding:16px 20px;background:transparent;border:0;text-align:left;
  font-size:15.5px;font-weight:600;color:var(--t1);
}
.qmark{flex:0 0 26px;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:700;color:var(--brand-hi);background:rgba(229,56,111,.15)}
.plus{margin-left:auto;position:relative;width:16px;height:16px;flex:0 0 16px}
.plus::before,.plus::after{content:"";position:absolute;background:var(--t2);border-radius:2px;transition:transform 220ms var(--ease),opacity 220ms var(--ease)}
.plus::before{left:0;top:7px;width:16px;height:2px}
.plus::after{left:7px;top:0;width:2px;height:16px}
.faq-item.open .plus::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height 300ms var(--ease)}
.faq-a p{padding:0 20px 20px 60px;font-size:15px;line-height:1.85;color:var(--t2)}

/* ===== CTA 带 ===== */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:52px 46px;border-radius:22px;position:relative;overflow:hidden;
  background:linear-gradient(100deg,rgba(229,56,111,.20),rgba(242,200,121,.08));
  border:1px solid rgba(229,56,111,.28);
}
.cta-band::after{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(229,56,111,.30),transparent 70%);pointer-events:none}
.cta-band h2{font-size:clamp(22px,2.5vw,30px)}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.9;color:var(--t2);max-width:44em}

/* ===== 联系 / 表单 ===== */
.contact-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:26px;align-items:start}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;color:var(--t2);margin-bottom:8px}
.input,.select,.textarea{
  width:100%;background:rgba(255,255,255,.05);border:1px solid var(--glass-bd);
  border-radius:var(--r-input);padding:12px 14px;font-size:14.5px;color:var(--t1);
  min-height:46px;transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease),background 220ms var(--ease);
}
.textarea{min-height:120px;resize:vertical;line-height:1.8}
.input::placeholder,.textarea::placeholder{color:var(--t3)}
.input:focus,.select:focus,.textarea:focus{
  outline:none;border-color:var(--brand);background:rgba(255,255,255,.078);
  box-shadow:0 0 0 4px rgba(229,56,111,.18);
}
.input.invalid,.select.invalid,.textarea.invalid{border-color:var(--danger);box-shadow:0 0 0 3px rgba(255,107,107,.14)}
.select{
  appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23BFAFBD' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:38px;
}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;line-height:1.8;color:var(--t2);min-height:44px}
.check input{width:18px;height:18px;margin-top:4px;accent-color:var(--brand);flex:0 0 18px}
.alert{display:flex;gap:10px;align-items:flex-start;margin-top:12px;padding:12px 15px;border-radius:12px;font-size:12.5px;line-height:1.75}
.alert-error{border:1px solid rgba(255,107,107,.55);background:rgba(255,107,107,.08);color:#FFB3B3}
.alert-success{border:1px solid rgba(70,216,180,.5);background:rgba(70,216,180,.10);color:var(--mint)}
.alert[hidden]{display:none}
.form-actions{margin-top:22px}
.info-card{display:flex;flex-direction:column;gap:20px}
.info-item{display:flex;gap:14px;align-items:flex-start}
.info-item .k{font-size:12.5px;color:var(--t3);letter-spacing:.06em}
.info-item .v{font-size:14.5px;color:var(--t1);line-height:1.8}
.info-links{margin-top:6px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:4px}
.info-links a{display:flex;align-items:center;gap:10px;min-height:44px;font-size:14px;color:var(--t2);border-radius:10px;padding:0 10px;margin:0 -10px;transition:background 220ms var(--ease),color 220ms var(--ease)}
.info-links a:hover{background:var(--glass);color:var(--brand-hi)}

/* ===== 页脚 ===== */
.site-footer{position:relative;padding:64px 0 0;margin-top:96px}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(229,56,111,.62),rgba(242,200,121,.5),transparent)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.25fr;gap:36px}
.footer-brand{display:flex;flex-direction:column;gap:14px;max-width:26em}
.footer-desc{font-size:14px;line-height:1.85;color:var(--t2)}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px}
.footer-title{font-size:12.5px;letter-spacing:.12em;color:var(--t3);margin-bottom:16px}
.footer-link{display:block;font-size:14px;color:var(--t2);padding:7px 0;transition:color 220ms var(--ease),padding-left 220ms var(--ease)}
.footer-link:hover{color:var(--brand-hi);padding-left:4px}
.footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:var(--t3);line-height:1.9;
}

/* ===== 响应式 ===== */
@media (min-width:1440px){
  :root{--side:264px}
  .container{padding:0 40px}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .topbar{display:flex}
  .page{margin-left:0;padding-top:62px}
  .container{padding:0 24px}
  .section{padding:72px 0}
  .hero{padding:72px 0;min-height:auto}
  .hero-inner{grid-template-columns:1fr;gap:44px}
  .hero h1{max-width:none}
  .hero-visual{max-width:560px}
  .float-card{left:auto;right:-8px;bottom:-20px}
  .cap-grid{grid-template-columns:1fr;gap:22px}
  .stat-bar{grid-template-columns:repeat(2,1fr)}
  .case-row{grid-template-columns:1fr;gap:22px;margin-bottom:44px}
  .case-row.reverse .case-media{order:0}
  .plan-grid{grid-template-columns:1fr;gap:22px}
  .plan-card.featured{transform:none}
  .plan-card.featured:hover{transform:translateY(-3px)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band{padding:40px 32px}
  .site-footer{margin-top:72px}
}
@media (max-width:767px){
  body{background-attachment:scroll}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .hero{padding:56px 0}
  .hero-sub{font-size:15.5px}
  .hero-actions{gap:12px;margin-top:28px}
  .hero-actions .btn{width:100%}
  .hero-metrics{gap:22px;margin-top:32px;padding-top:22px}
  .hero-metrics .m-num{font-size:19px}
  .float-card{padding:12px 15px}
  .float-card strong{font-size:18px}
  .section-head{margin-bottom:32px}
  .section-head--row{flex-direction:column;align-items:flex-start;gap:16px}
  .card{padding:20px}
  .cap-lead-body{padding:20px}
  .cap-mini{flex-direction:column;gap:12px}
  .stat-bar{padding:26px 20px;gap:20px}
  .cta-band{padding:30px 20px;gap:20px}
  .cta-band .btn{width:100%}
  .news-grid{grid-template-columns:1fr;gap:16px}
  .news-card{flex-direction:row;align-items:stretch}
  .news-media{flex:0 0 96px;width:96px;height:72px;aspect-ratio:auto;align-self:flex-start}
  .news-cat{display:none}
  .news-body{padding:12px 14px;gap:6px}
  .news-title{font-size:14.5px}
  .news-excerpt{display:none}
  .news-foot{padding-top:8px;font-size:12px}
  .faq-a p{padding:0 16px 18px 54px;font-size:14.5px}
  .faq-q{padding:14px 16px;font-size:15px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .site-footer{margin-top:56px;padding-top:48px}
}
@media (max-width:479px){
  .container{padding:0 16px}
  .hero-metrics{flex-direction:column;gap:14px}
  .stat-bar{grid-template-columns:1fr}
  .btn{width:100%}
  .btn-ghost,.btn-sm{width:auto}
  .plan-card.featured{transform:none}
}

/* roulang page: article */
:root{
  --bg-0:#0A0710;
  --bg-1:#140B1B;
  --bg-2:#1D1124;
  --brand:#E5386F;
  --brand-grad:linear-gradient(100deg,#E5386F 0%,#FF7A5E 100%);
  --accent:#F2C879;
  --mint:#46D8B4;
  --t1:#F7F2F6;
  --t2:#BFAFBD;
  --t3:#8A7C8C;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.055);
  --glass-bd:rgba(255,255,255,.10);
  --r-card:18px;
  --r-btn:999px;
  --r-in:12px;
  --r-img:14px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.08);
  --shadow-hover:0 26px 54px rgba(0,0,0,.55), 0 0 0 1px rgba(229,56,111,.22), 0 0 28px rgba(229,56,111,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --side:240px;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
@media (min-width:1440px){:root{--side:264px}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--t1);
  background:
    radial-gradient(900px 620px at 84% -8%, rgba(229,56,111,.18), transparent 62%),
    radial-gradient(720px 520px at 4% 16%, rgba(242,200,121,.10), transparent 60%),
    var(--bg-0);
  background-attachment:fixed;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color 220ms var(--ease),opacity 220ms var(--ease)}
a:hover{color:#FF5C8A}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(229,56,111,.22);border-radius:6px}
::selection{background:rgba(229,56,111,.35);color:#fff}
.skip{position:absolute;left:-9999px;top:0;padding:10px 16px;background:var(--bg-2);border-radius:0 0 12px 0;z-index:200}
.skip:focus{left:0}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:520px){.container{padding:0 20px}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),background 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease);
}
.btn-primary{
  background:var(--brand-grad);color:#fff;border:0;
  box-shadow:0 12px 28px rgba(229,56,111,.38), inset 0 1px 0 rgba(255,255,255,.28);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 38px rgba(229,56,111,.5), inset 0 1px 0 rgba(255,255,255,.3)}
.btn-primary:active{transform:translateY(1px)}
.btn-secondary{
  background:transparent;color:var(--t1);border:1px solid var(--glass-bd);
  backdrop-filter:blur(18px) saturate(120%);
}
.btn-secondary:hover{color:var(--t1);background:rgba(255,255,255,.08);transform:translateY(-2px)}
.btn-ghost{
  padding:6px 0;min-height:auto;color:var(--brand);font-weight:600;background:none;border:0;
}
.btn-ghost::after{content:"→";display:inline-block;margin-left:6px;transition:transform 220ms var(--ease)}
.btn-ghost:hover{color:#FF5C8A;text-decoration:underline;text-underline-offset:5px}
.btn-ghost:hover::after{transform:translateX(6px)}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-btn);
  font-size:12.5px;line-height:1.6;font-weight:500;
  color:var(--brand);background:var(--glass);
  border:1px solid var(--glass-bd);backdrop-filter:blur(18px) saturate(120%);
}
.badge-gold{color:var(--accent)}
.badge-mint{color:var(--mint)}
.badge-plain{color:var(--t2)}
.badge:hover{color:#FF5C8A;background:rgba(255,255,255,.09)}

/* ============ 顶部栏（移动端） ============ */
.topbar{
  position:fixed;inset:0 0 auto 0;height:64px;z-index:70;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 20px;background:rgba(10,7,16,.72);
  border-bottom:1px solid transparent;
  backdrop-filter:blur(18px) saturate(120%);
  transition:background 220ms var(--ease),border-color 220ms var(--ease);
}
.topbar.scrolled{background:rgba(20,11,27,.9);border-bottom-color:var(--glass-bd)}
.hamburger{
  width:46px;height:46px;border-radius:12px;border:1px solid var(--glass-bd);
  background:var(--glass);display:grid;place-items:center;gap:0
}
.hamburger span{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--t1);
  transition:transform 220ms var(--ease),opacity 220ms var(--ease);
}
.hamburger span+span{margin-top:4px}
.hamburger.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
@media (min-width:1024px){.topbar{display:none}}

/* ============ Logo ============ */
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:16px;font-weight:800;color:var(--t1);letter-spacing:.2px;
  text-decoration:none;
}
.logo:hover{color:var(--t1)}
.logo-mark{
  width:34px;height:34px;border-radius:11px;flex:0 0 auto;
  display:grid;place-items:center;
  background:var(--brand-grad);color:#fff;font-size:12.5px;font-weight:800;
  box-shadow:0 8px 20px rgba(229,56,111,.35), inset 0 1px 0 rgba(255,255,255,.3);
}

/* ============ 侧栏 / 抽屉 ============ */
.scrim{
  position:fixed;inset:0;z-index:65;background:rgba(10,7,16,.72);
  opacity:0;visibility:hidden;transition:opacity 220ms var(--ease),visibility 220ms var(--ease);
}
.scrim.open{opacity:1;visibility:visible}
@media (min-width:1024px){.scrim{display:none}}

.drawer{
  position:fixed;top:0;right:0;bottom:0;width:280px;z-index:66;
  display:flex;flex-direction:column;gap:24px;
  padding:26px 20px;overflow-y:auto;
  background:linear-gradient(180deg,rgba(29,17,36,.96),rgba(10,7,16,.98));
  border-left:1px solid var(--glass-bd);
  backdrop-filter:blur(18px) saturate(120%);
  transform:translateX(100%);
  transition:transform 260ms var(--ease);
}
.drawer.open{transform:translateX(0)}
.nav-group{display:flex;flex-direction:column;gap:6px}
.nav-label{
  font-size:12.5px;color:var(--t3);letter-spacing:.6px;
  padding:0 12px 4px;display:block;
}
.nav-link{
  position:relative;display:flex;align-items:center;gap:10px;
  min-height:44px;padding:10px 14px;border-radius:12px;
  font-size:14.5px;color:var(--t2);text-decoration:none;
  transition:background 220ms var(--ease),color 220ms var(--ease),transform 220ms var(--ease);
}
.nav-link:hover{background:rgba(255,255,255,.06);color:var(--t1);transform:translateX(2px)}
.nav-link.active{
  background:var(--glass);color:var(--t1);font-weight:600;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.nav-link.active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:2px;height:20px;border-radius:2px;background:var(--brand);
  box-shadow:0 0 12px rgba(229,56,111,.8);
}
.nav-dot{width:7px;height:7px;border-radius:50%;background:var(--brand);flex:0 0 auto;box-shadow:0 0 10px rgba(229,56,111,.7)}
.nav-dot.gold{background:var(--accent);box-shadow:0 0 10px rgba(242,200,121,.6)}
.nav-dot.mint{background:var(--mint);box-shadow:0 0 10px rgba(70,216,180,.6)}
.side-cta{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.side-cta .btn{width:100%}
.side-note{font-size:12.5px;color:var(--t3);text-align:center}

@media (min-width:1024px){
  .drawer{
    left:0;right:auto;width:var(--side);transform:none;
    padding:30px 20px 26px;
    background:linear-gradient(180deg,rgba(29,17,36,.9),rgba(10,7,16,.92));
    border-left:0;border-right:1px solid var(--glass-bd);
    z-index:50;
  }
}

/* ============ 内容区 ============ */
.page{padding-top:88px}
@media (min-width:1024px){.page{margin-left:var(--side);padding-top:0}}

.section{padding:96px 0}
@media (max-width:1023px){.section{padding:72px 0}}
@media (max-width:767px){.section{padding:56px 0}}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:12.5px;color:var(--t3);
  padding:28px 0 0;overflow:hidden;white-space:nowrap;
}
.breadcrumb a{color:var(--t3);text-decoration:none}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(255,255,255,.22)}
.breadcrumb .crumb-cur{color:var(--t2);overflow:hidden;text-overflow:ellipsis}
@media (min-width:1024px){.breadcrumb{padding-top:36px}}

/* ============ 文章骨架 ============ */
.article-shell{
  display:block;padding:22px 0 0;
}
@media (min-width:1280px){
  .article-shell{
    display:grid;grid-template-columns:minmax(0,1fr) 268px;
    gap:48px;align-items:start;
  }
}
.article-main{min-width:0}

.article-head{padding:14px 0 26px;max-width:780px}
.article-head h1{
  font-size:clamp(28px,4.2vw,44px);line-height:1.2;font-weight:800;
  margin:16px 0 16px;letter-spacing:-.2px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:12.5px;color:var(--t3);font-variant-numeric:tabular-nums;
}
.article-meta .dot{color:rgba(255,255,255,.2)}

.article-cover{margin:8px 0 36px;max-width:900px}
.article-cover img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--r-img);background:var(--bg-2);
  box-shadow:var(--shadow-card);
}

/* ============ 正文排版 ============ */
.article-body{max-width:780px;font-size:16px;line-height:1.9;color:var(--t2)}
.article-body>*+*{margin-top:1.25em}
.article-body p{color:var(--t2)}
.article-body h2{
  position:relative;padding-left:16px;margin-top:2.2em;
  font-size:clamp(21px,2.3vw,26px);line-height:1.35;font-weight:700;color:var(--t1);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.4em;width:2px;height:18px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(229,56,111,.7);
}
.article-body h3{
  margin-top:1.8em;font-size:19px;line-height:1.5;font-weight:600;color:var(--t1);
}
.article-body a{color:var(--brand);text-decoration:none;border-bottom:1px solid rgba(229,56,111,.35)}
.article-body a:hover{color:#FF5C8A;border-bottom-color:#FF5C8A}
.article-body strong{color:var(--t1);font-weight:600}
.article-body ul,.article-body ol{list-style:none;padding-left:0;display:flex;flex-direction:column;gap:10px}
.article-body ul li,.article-body ol li{position:relative;padding-left:20px}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.78em;width:6px;height:6px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 8px rgba(229,56,111,.6);
}
.article-body ol{counter-reset:olc}
.article-body ol li::before{
  counter-increment:olc;content:counter(olc);
  position:absolute;left:0;top:.15em;font-size:13px;color:var(--accent);
}
.article-body blockquote{
  margin-left:0;margin-right:0;padding:18px 22px;
  background:var(--glass);border-left:3px solid var(--brand);
  border-radius:0 var(--r-img) var(--r-img) 0;
  backdrop-filter:blur(18px) saturate(120%);color:var(--t2);
}
.article-body img{border-radius:var(--r-img);margin:1.5em auto;background:var(--bg-2)}
.article-body figure figcaption{
  margin-top:10px;font-size:13px;color:var(--t3);text-align:center;
}
.article-body table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;
  font-size:14.5px;border-radius:var(--r-img);
}
.article-body th,.article-body td{
  padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap;
}
.article-body th{color:var(--t1);font-weight:600;background:rgba(255,255,255,.04)}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.025)}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.2em 0}
.article-body code{
  padding:2px 6px;border-radius:6px;background:rgba(255,255,255,.07);
  color:var(--accent);font-size:14.5px;
}

/* ============ 空态 ============ */
.empty-state{
  max-width:780px;padding:56px 24px;text-align:center;
  background:var(--glass);border:1px solid var(--glass-bd);
  border-radius:var(--r-card);box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px) saturate(120%);
}
.empty-state .icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:50%;
  display:grid;place-items:center;font-size:22px;color:var(--accent);
  background:rgba(242,200,121,.1);border:1px solid rgba(242,200,121,.28);
}
.empty-state h2{font-size:20px;font-weight:700;color:var(--t1);margin-bottom:10px}
.empty-state p{font-size:14.5px;color:var(--t3);margin-bottom:22px}

/* ============ 目录 ============ */
.toc-side{display:none}
@media (min-width:1280px){
  .toc-side{
    display:block;position:sticky;top:32px;
    padding:22px 20px;border-radius:var(--r-card);
    background:var(--glass);border:1px solid var(--glass-bd);
    box-shadow:var(--shadow-card);backdrop-filter:blur(18px) saturate(120%);
  }
}
.toc-title{
  font-size:12.5px;letter-spacing:1px;color:var(--t3);margin-bottom:14px;display:block;
}
.toc-link{
  display:block;padding:7px 12px;border-radius:10px;
  font-size:13.5px;line-height:1.6;color:var(--t2);text-decoration:none;
  border-left:2px solid transparent;
  transition:background 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease);
  overflow:hidden;text-overflow:ellipsis;
}
.toc-link:hover{background:rgba(255,255,255,.06);color:var(--t1)}
.toc-link.active{color:var(--t1);border-left-color:var(--brand);background:rgba(255,255,255,.05)}
.toc-link.lvl3{padding-left:26px;font-size:12.8px;color:var(--t3)}

.toc-mobile{
  max-width:780px;margin:0 0 28px;
  border-radius:var(--r-card);border:1px solid var(--glass-bd);
  background:var(--glass);backdrop-filter:blur(18px) saturate(120%);
  overflow:hidden;
}
.toc-mobile summary{
  min-height:52px;display:flex;align-items:center;justify-content:space-between;
  padding:0 18px;font-size:14px;font-weight:600;color:var(--t1);cursor:pointer;list-style:none;
}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary::after{content:"+";font-size:18px;color:var(--brand);transition:transform 220ms var(--ease)}
.toc-mobile[open] summary::after{transform:rotate(45deg)}
.toc-mobile .toc-list{padding:6px 10px 16px}
@media (min-width:1280px){.toc-mobile{display:none}}

/* ============ 标签与操作 ============ */
.article-tags{
  max-width:780px;display:flex;flex-wrap:wrap;gap:10px;
  margin-top:44px;padding-top:28px;border-top:1px solid var(--line);
}
.article-actions{
  max-width:780px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;
  margin-top:26px;
}

/* ============ 相关推荐 ============ */
.related{max-width:900px;margin-top:72px}
.related-head{
  display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:24px;
}
.related-head h2{font-size:clamp(20px,2.2vw,24px);font-weight:700;color:var(--t1)}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
@media (max-width:1023px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.related-grid{grid-template-columns:1fr}}

.card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-card);border:1px solid var(--glass-bd);
  background:var(--glass);box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px) saturate(120%);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(229,56,111,.35)}
.card-media{position:relative;overflow:hidden;background:var(--bg-2)}
.card-media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  transition:transform 260ms var(--ease);
}
.card:hover .card-media img{transform:scale(1.03)}
.card-media .badge{position:absolute;top:12px;left:12px}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{
  font-size:16px;line-height:1.55;font-weight:600;color:var(--t1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  font-size:13.8px;line-height:1.8;color:var(--t3);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--t3);font-variant-numeric:tabular-nums;
}
.card-foot .arrow{color:var(--brand);transition:transform 220ms var(--ease)}
.card:hover .card-foot .arrow{transform:translateX(5px)}

/* ============ CTA 区 ============ */
.cta-band{
  margin-top:96px;padding:1px;border-radius:26px;
  background:linear-gradient(120deg,rgba(229,56,111,.5),rgba(242,200,121,.28));
}
.cta-inner{
  border-radius:25px;padding:52px 44px;
  background:
    radial-gradient(600px 320px at 88% 0%, rgba(229,56,111,.22), transparent 60%),
    linear-gradient(180deg,var(--bg-1),var(--bg-0));
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;line-height:1.3;margin-bottom:10px}
.cta-inner p{font-size:14.5px;color:var(--t2);max-width:560px}
.cta-side{display:flex;flex-wrap:wrap;gap:14px}
@media (max-width:767px){.cta-inner{padding:32px 20px}.cta-side{width:100%}.cta-side .btn{width:100%}}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;border-top:1px solid transparent;
  background:linear-gradient(180deg,rgba(29,17,36,.75),rgba(10,7,16,.98));
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(229,56,111,.55),rgba(242,200,121,.4),transparent);
}
@media (min-width:1024px){.site-footer{margin-left:var(--side)}}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:38px;
  padding:68px 0 46px;
}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 36px}}
@media (max-width:640px){.footer-grid{grid-template-columns:1fr;padding:48px 0 30px}}
.footer-brand .logo{margin-bottom:16px}
.footer-desc{font-size:13.8px;line-height:1.9;color:var(--t3);max-width:340px}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-title{font-size:14px;font-weight:700;color:var(--t1);margin-bottom:16px}
.footer-link{
  display:block;min-height:32px;font-size:13.8px;color:var(--t3);
  text-decoration:none;line-height:2.2;
}
.footer-link:hover{color:var(--brand)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 30px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--t3);
}

/* ============ 回顶 ============ */
.to-top{
  position:fixed;right:22px;bottom:24px;z-index:60;
  width:48px;height:48px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--brand-grad);color:#fff;font-size:18px;
  box-shadow:0 14px 30px rgba(229,56,111,.42), inset 0 1px 0 rgba(255,255,255,.28);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity 220ms var(--ease),transform 220ms var(--ease),visibility 220ms var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{transform:translateY(-3px)}

@media (max-width:480px){
  .article-head h1{font-size:clamp(24px,7vw,30px)}
  .article-body{font-size:15px}
  .cta-inner h2{font-size:21px}
  .btn{width:100%}
  .article-meta{font-size:12px}
  .to-top{right:16px;bottom:18px}
}

/* roulang page: category1 */
:root{
  --bg-0:#0A0710; --bg-1:#140B1B; --bg-2:#1D1124;
  --brand:#E5386F; --brand-grad:linear-gradient(100deg,#E5386F 0%,#FF7A5E 100%);
  --brand-soft:rgba(229,56,111,.18);
  --accent:#F2C879; --mint:#46D8B4;
  --t1:#F7F2F6; --t2:#BFAFBD; --t3:#8A7C8C;
  --glass:rgba(255,255,255,.055); --glass-bd:rgba(255,255,255,.10);
  --glass-strong:rgba(255,255,255,.085);
  --r-card:18px; --r-btn:999px; --r-input:12px; --r-img:14px;
  --shadow:0 18px 40px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.08);
  --shadow-hover:0 26px 54px rgba(0,0,0,.55), 0 0 0 1px rgba(229,56,111,.22), inset 0 1px 0 rgba(255,255,255,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --side-w:240px;
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
.site{
  margin:0;padding:0;background:var(--bg-0);color:var(--t1);
  font-family:var(--font-cn);font-size:16px;line-height:1.9;
  font-variant-numeric:tabular-nums;overflow-x:hidden;
  background-image:
    radial-gradient(900px 620px at 88% -6%, rgba(229,56,111,.16), transparent 62%),
    radial-gradient(760px 520px at 4% 96%, rgba(242,200,121,.09), transparent 60%);
  background-attachment:fixed;
}
img{display:block;max-width:100%;height:auto;background:var(--bg-2)}
a{color:inherit;text-decoration:none;transition:color 220ms var(--ease)}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{list-style:none;padding:0}
button{font-family:inherit;font-size:inherit;color:inherit;border:0;background:none;cursor:pointer}
::selection{background:rgba(229,56,111,.4);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(229,56,111,.28);border-radius:6px}

/* ---------- 布局骨架 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-title{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700;letter-spacing:.2px}
.section-sub{margin-top:12px;color:var(--t2);font-size:15px;line-height:1.85;max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--accent);letter-spacing:.4px}
.eyebrow::before{content:"";width:1px;height:14px;background:var(--brand);display:inline-block}

/* ---------- 左侧竖向导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--side-w);z-index:60;
  display:flex;flex-direction:column;gap:26px;padding:28px 20px;overflow-y:auto;
  background:linear-gradient(180deg,#150C1D 0%,#0A0710 100%);
  border-right:1px solid var(--glass-bd);
}
.sidebar::-webkit-scrollbar{width:6px}
.sidebar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:999px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:var(--t1);letter-spacing:.2px}
.logo:hover{color:#FF5C8A}
.logo-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-grad);color:#fff;font-weight:800;font-size:13px;letter-spacing:.5px;
  box-shadow:0 8px 20px rgba(229,56,111,.35), inset 0 1px 0 rgba(255,255,255,.35);
}
.nav-group{display:flex;flex-direction:column;gap:6px}
.nav-label{font-size:11.5px;color:var(--t3);letter-spacing:1.2px;padding-left:12px;margin-bottom:4px}
.nav-link{
  display:flex;align-items:center;gap:10px;min-height:44px;padding:10px 12px;
  border-radius:12px;font-size:14.5px;color:var(--t2);position:relative;
  transition:background 220ms var(--ease),color 220ms var(--ease),transform 220ms var(--ease);
}
.nav-link:hover{background:var(--glass);color:var(--t1)}
.nav-link.active{background:var(--glass);color:var(--t1);font-weight:600}
.nav-link.active::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:2px;border-radius:2px;background:var(--brand)}
.nav-dot{width:6px;height:6px;border-radius:50%;background:var(--brand);flex:0 0 6px;box-shadow:0 0 8px rgba(229,56,111,.8)}
.nav-dot.gold{background:var(--accent);box-shadow:0 0 8px rgba(242,200,121,.75)}
.nav-dot.mint{background:var(--mint);box-shadow:0 0 8px rgba(70,216,180,.75)}
.side-cta{margin-top:auto;display:flex;flex-direction:column;gap:10px;padding-top:18px;border-top:1px solid rgba(255,255,255,.08)}
.side-note{font-size:12.5px;color:var(--t3);line-height:1.7}

/* ---------- 移动端顶栏与抽屉 ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:62px;z-index:100;
  align-items:center;justify-content:space-between;padding:0 18px;
  background:rgba(10,7,16,.72);backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  border-bottom:1px solid transparent;transition:background 220ms var(--ease),border-color 220ms var(--ease);
}
.topbar.scrolled{background:rgba(10,7,16,.92);border-bottom-color:var(--glass-bd)}
.burger{width:44px;height:44px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;border-radius:12px}
.burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--t1);transition:transform 220ms var(--ease),opacity 220ms var(--ease)}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mask{position:fixed;inset:0;background:rgba(10,7,16,.72);opacity:0;pointer-events:none;transition:opacity 260ms var(--ease);z-index:110}
.mask.show{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:280px;z-index:120;
  display:flex;flex-direction:column;gap:24px;padding:22px 18px;overflow-y:auto;
  background:linear-gradient(180deg,#170D1E 0%,#0A0710 100%);
  border-left:1px solid var(--glass-bd);transform:translateX(100%);
  transition:transform 300ms var(--ease);
}
.drawer.open{transform:translateX(0)}
.drawer .side-cta{margin-top:auto}

/* ---------- 内容区 ---------- */
.main{margin-left:var(--side-w);min-height:100vh}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),background 220ms var(--ease),color 220ms var(--ease),opacity 220ms var(--ease);
}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 14px 30px rgba(229,56,111,.32), inset 0 1px 0 rgba(255,255,255,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 40px rgba(229,56,111,.48), inset 0 1px 0 rgba(255,255,255,.4);color:#fff}
.btn-primary:active{transform:translateY(1px)}
.btn-secondary{background:rgba(255,255,255,.03);color:var(--t1);border:1px solid var(--glass-bd);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.btn-secondary:hover{background:rgba(255,255,255,.08);color:#fff;transform:translateY(-2px)}
.btn-ghost{color:#FF5C8A;padding:0 6px;min-height:44px}
.btn-ghost:hover{color:#FF7A9E}
.btn-ghost .arrow{transition:transform 220ms var(--ease)}
.btn-ghost:hover .arrow{transform:translateX(5px)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:var(--r-btn);font-size:12.5px;line-height:1;
  background:var(--glass);border:1px solid var(--glass-bd);color:var(--accent);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
}
.badge-brand{color:#FF7A9E;border-color:rgba(229,56,111,.32)}
.badge-mint{color:var(--mint);border-color:rgba(70,216,180,.3)}
.badge-muted{color:var(--t2)}
.badge-row{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--t3);overflow:hidden;white-space:nowrap;text-overflow:ellipsis;margin-bottom:22px}
.breadcrumb a{color:var(--t2)}
.breadcrumb a:hover{color:#FF5C8A;text-decoration:underline;text-underline-offset:4px}
.breadcrumb .sep{color:var(--t3)}
.breadcrumb .current{color:var(--t3)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:104px 0 88px;background:url(/assets/images/backpic/back-1.png) center/cover no-repeat}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(880px 520px at 80% 14%, rgba(229,56,111,.30), transparent 62%),
    radial-gradient(680px 460px at 8% 88%, rgba(242,200,121,.12), transparent 60%),
    linear-gradient(180deg, rgba(10,7,16,.88) 0%, rgba(10,7,16,.94) 100%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center}
.hero h1{font-size:clamp(30px,4.6vw,52px);line-height:1.15;font-weight:800;letter-spacing:.2px;margin-top:20px}
.hero-lead{margin-top:18px;font-size:16.5px;color:var(--t2);max-width:560px;line-height:1.9}
.hero .btn-row{margin-top:32px}
.hero-facts{display:flex;flex-wrap:wrap;gap:14px 34px;margin-top:40px;padding-top:26px;border-top:1px solid rgba(255,255,255,.08)}
.fact{display:flex;flex-direction:column;gap:2px}
.fact-num{font-size:18px;font-weight:700;color:var(--accent)}
.fact-label{font-size:12.5px;color:var(--t3)}
.hero-visual{position:relative}
.hero-media{border-radius:22px;overflow:hidden;border:1px solid var(--glass-bd);box-shadow:var(--shadow)}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.float-card{
  position:absolute;left:-26px;bottom:-26px;min-width:214px;
  padding:18px 20px;border-radius:var(--r-card);
  background:rgba(29,17,36,.78);border:1px solid var(--glass-bd);
  box-shadow:var(--shadow);backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
}
.float-card .fc-num{font-size:30px;font-weight:800;color:var(--accent);line-height:1.1}
.float-card .fc-label{font-size:12.5px;color:var(--t3);margin-top:4px}
.status{display:flex;align-items:center;gap:8px;margin-top:12px;font-size:12.5px;color:var(--mint)}
.status i{width:7px;height:7px;border-radius:50%;background:var(--mint);display:block;box-shadow:0 0 10px rgba(70,216,180,.9)}

/* ---------- 图文卡片栅格 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;gap:16px;padding:20px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--glass-bd);box-shadow:var(--shadow);
  backdrop-filter:blur(18px) saturate(120%);-webkit-backdrop-filter:blur(18px) saturate(120%);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),background 220ms var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);background:var(--glass-strong)}
.card-media{border-radius:var(--r-img);overflow:hidden;position:relative}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 420ms var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-tag{position:absolute;top:12px;left:12px;z-index:2}
.card h3{font-size:19px;font-weight:600;line-height:1.5}
.card p{font-size:14px;color:var(--t2);line-height:1.85}
.card-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:#FF5C8A;margin-top:auto}
.card-link .arrow{transition:transform 220ms var(--ease)}
.card:hover .card-link .arrow{transform:translateX(5px)}

/* ---------- 数据带 ---------- */
.stats-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:36px 34px;border-radius:22px;
  background:var(--glass);border:1px solid var(--glass-bd);box-shadow:var(--shadow);
  backdrop-filter:blur(18px) saturate(120%);-webkit-backdrop-filter:blur(18px) saturate(120%);
}
.stat{display:flex;flex-direction:column;gap:8px}
.stat-num{font-size:clamp(28px,3.4vw,44px);font-weight:800;color:var(--accent);line-height:1.05;font-variant-numeric:tabular-nums}
.stat-label{font-size:14px;color:var(--t2);line-height:1.7}

/* ---------- 步骤列表 ---------- */
.steps{display:grid;gap:14px}
.step{
  display:grid;grid-template-columns:64px 1fr auto;gap:20px;align-items:center;
  padding:20px 24px;border-radius:16px;background:var(--glass);
  border:1px solid var(--glass-bd);transition:background 220ms var(--ease),transform 220ms var(--ease);
}
.step:hover{background:var(--glass-strong);transform:translateX(4px)}
.step-no{font-size:20px;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums}
.step h3{font-size:17px;font-weight:600;margin-bottom:6px}
.step p{font-size:14px;color:var(--t2);line-height:1.8}
.step-meta{font-size:12.5px;color:var(--t3);white-space:nowrap}

/* ---------- 图文并排块 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split-media{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--glass-bd);box-shadow:var(--shadow)}
.split-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.split h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.25;margin-bottom:16px}
.split p{color:var(--t2);font-size:15.5px;line-height:1.95;margin-bottom:14px}
.check-list{display:grid;gap:12px;margin:22px 0 26px}
.check-list li{display:flex;gap:10px;font-size:14.5px;color:var(--t2);line-height:1.8}
.check-list li::before{content:"";width:16px;height:16px;flex:0 0 16px;margin-top:6px;border-radius:50%;background:rgba(229,56,111,.18);border:1px solid rgba(229,56,111,.55);box-shadow:inset 0 0 0 3px rgba(229,56,111,.25)}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto}
.faq-item{
  background:var(--glass);border:1px solid var(--glass-bd);border-left:1px solid var(--glass-bd);
  border-radius:16px;margin-bottom:12px;overflow:hidden;transition:background 220ms var(--ease),border-color 220ms var(--ease);
}
.faq-item:hover{background:var(--glass-strong)}
.faq-item.open{background:var(--glass-strong);border-left:1px solid var(--brand)}
.faq-q{display:flex;align-items:center;gap:14px;width:100%;min-height:56px;padding:16px 20px;text-align:left;font-size:16px;font-weight:600;color:var(--t1)}
.q-mark{width:24px;height:24px;flex:0 0 24px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:#FF7A9E;background:rgba(229,56,111,.16);border:1px solid rgba(229,56,111,.35)}
.faq-icon{margin-left:auto;width:22px;height:22px;flex:0 0 22px;position:relative;transition:transform 260ms var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--t2);border-radius:2px}
.faq-icon::before{left:50%;top:4px;bottom:4px;width:2px;transform:translateX(-50%)}
.faq-icon::after{top:50%;left:4px;right:4px;height:2px;transform:translateY(-50%)}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 320ms var(--ease)}
.faq-item.open .faq-a{max-height:460px}
.faq-a-inner{padding:0 20px 20px 58px;font-size:15px;line-height:1.85;color:var(--t2)}

/* ---------- CTA 带 ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:44px 46px;border-radius:24px;
  background:linear-gradient(100deg,rgba(229,56,111,.18) 0%,rgba(242,200,121,.08) 100%);
  border:1px solid rgba(229,56,111,.30);
  box-shadow:0 22px 50px rgba(0,0,0,.42), inset 0 1px 0 rgba(255,255,255,.10);
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3}
.cta-band p{margin-top:10px;font-size:15px;color:var(--t2);max-width:560px}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:96px;padding:72px 0 28px;border-top:1px solid transparent;background:linear-gradient(180deg,rgba(20,11,27,.6) 0%,rgba(10,7,16,1) 100%);position:relative}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(229,56,111,.7),rgba(242,200,121,.5),transparent)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1.3fr;gap:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-desc{font-size:13.5px;color:var(--t3);line-height:1.9;max-width:320px}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-title{font-size:14px;font-weight:700;color:var(--t1);margin-bottom:16px;letter-spacing:.3px}
.footer-link{display:block;font-size:13.5px;color:var(--t3);line-height:1.9;padding:5px 0;transition:color 220ms var(--ease),transform 220ms var(--ease)}
.footer-link:hover{color:#FF5C8A;transform:translateX(3px)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);font-size:12.5px;color:var(--t3)}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:26px;width:46px;height:46px;border-radius:50%;z-index:90;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-grad);color:#fff;font-size:16px;
  box-shadow:0 14px 30px rgba(229,56,111,.36);
  opacity:0;pointer-events:none;transform:translateY(12px);
  transition:opacity 260ms var(--ease),transform 260ms var(--ease);
}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{transform:translateY(-3px)}

/* ---------- 断点 ---------- */
@media (min-width:1440px){
  :root{--side-w:264px}
}
@media (max-width:1279px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .topbar{display:flex}
  .main{margin-left:0;padding-top:62px}
  .hero{padding:74px 0 64px}
  .hero-inner{grid-template-columns:1fr;gap:38px}
  .hero-visual{order:2}
  .float-card{left:16px;bottom:-20px}
  .split{grid-template-columns:1fr;gap:30px}
  .section{padding:72px 0}
  .section-tight{padding:58px 0}
  .cta-band{padding:34px 28px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .stats-band{grid-template-columns:repeat(2,1fr);padding:28px 22px;gap:22px}
  .step{grid-template-columns:48px 1fr;gap:14px;padding:18px}
  .step-meta{display:none}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .section-head{margin-bottom:28px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .faq-a-inner{padding:0 18px 18px 18px}
  .site-footer{margin-top:64px;padding:52px 0 24px}
}
@media (max-width:520px){
  .hero h1{font-size:28px}
  .hero .btn-row{flex-direction:column;align-items:stretch}
  .hero .btn-row .btn,.hero .btn-row .btn-ghost{width:100%}
  .card{padding:16px}
  .cta-band{padding:26px 20px}
  .cta-band .btn{width:100%}
  .to-top{right:16px;bottom:18px}
}

/* roulang page: category2 */
:root{
  --bg-0:#0A0710;
  --bg-1:#140B1B;
  --bg-2:#1D1124;
  --brand:#E5386F;
  --brand-hi:#FF5C8A;
  --brand-grad:linear-gradient(100deg,#E5386F 0%,#FF7A5E 100%);
  --accent:#F2C879;
  --mint:#46D8B4;
  --t1:#F7F2F6;
  --t2:#BFAFBD;
  --t3:#8A7C8C;
  --glass:rgba(255,255,255,.055);
  --glass-bd:rgba(255,255,255,.10);
  --glass-hi:inset 0 1px 0 rgba(255,255,255,.08);
  --r-card:18px;
  --r-img:14px;
  --r-input:12px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.08);
  --shadow-hover:0 24px 52px rgba(0,0,0,.52), 0 0 0 1px rgba(229,56,111,.22), inset 0 1px 0 rgba(255,255,255,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sb:240px;
  --pad-sec:96px;
}
@media (min-width:1440px){ :root{ --sb:264px; } }

*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--t1);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 620px at 80% -10%, rgba(229,56,111,.18), transparent 62%),
    radial-gradient(760px 560px at 4% 34%, rgba(242,200,121,.10), transparent 64%);
  background-repeat:no-repeat;
  background-attachment:fixed;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed; inset:0; z-index:0; pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.022) 1px, transparent 1px);
  background-size:68px 68px;
  -webkit-mask-image:radial-gradient(circle at 50% 12%, #000 0%, transparent 78%);
  mask-image:radial-gradient(circle at 50% 12%, #000 0%, transparent 78%);
}
img{ max-width:100%; display:block; border:0; }
a{ color:var(--brand); text-decoration:none; transition:color 220ms var(--ease); }
a:hover{ color:var(--brand-hi); }
h1,h2,h3,h4{ margin:0; font-weight:700; line-height:1.3; }
p{ margin:0; }
ul,ol{ margin:0; padding:0; list-style:none; }
button,input,select,textarea{ font-family:inherit; font-size:inherit; color:inherit; }
button{ background:none; border:0; cursor:pointer; }
:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  box-shadow:0 0 0 4px rgba(229,56,111,.22);
  border-radius:10px;
}
::selection{ background:rgba(229,56,111,.35); color:#fff; }

.container{ width:100%; max-width:1200px; margin:0 auto; padding:0 28px; }
.section{ padding:var(--pad-sec) 0; position:relative; }
.section-tight{ padding:64px 0; }
.sec-head{ display:flex; align-items:flex-end; justify-content:space-between; gap:24px; flex-wrap:wrap; margin-bottom:36px; }
.sec-title{ font-size:clamp(24px,3vw,34px); line-height:1.25; font-weight:700; letter-spacing:.01em; }
.sec-sub{ margin-top:10px; font-size:14px; line-height:1.8; color:var(--t2); max-width:640px; }

/* ---------- 侧栏 / 导航 ---------- */
.drawer{
  position:fixed; top:0; left:0; z-index:60;
  width:var(--sb); height:100vh;
  display:flex; flex-direction:column; gap:20px;
  padding:26px 20px 24px;
  background:linear-gradient(180deg, rgba(29,17,36,.94) 0%, rgba(10,7,16,.96) 100%);
  border-right:1px solid var(--glass-bd);
  box-shadow:inset -1px 0 0 rgba(255,255,255,.04), 0 0 60px rgba(0,0,0,.5);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  overflow-y:auto;
}
.drawer::before{
  content:""; position:absolute; top:0; left:0; right:0; height:1px;
  background:linear-gradient(90deg, transparent, rgba(229,56,111,.7), rgba(242,200,121,.5), transparent);
}
.drawer::-webkit-scrollbar{ width:6px; }
.drawer::-webkit-scrollbar-thumb{ background:rgba(255,255,255,.12); border-radius:99px; }

.logo{ display:inline-flex; align-items:center; gap:10px; font-size:17px; font-weight:800; color:var(--t1); text-decoration:none; letter-spacing:.01em; }
.logo:hover{ color:var(--t1); }
.logo-mark{
  width:34px; height:34px; flex:0 0 34px; border-radius:11px;
  display:grid; place-items:center;
  background:var(--brand-grad); color:#fff;
  font-size:13px; font-weight:800; letter-spacing:.02em;
  box-shadow:0 8px 20px rgba(229,56,111,.35), inset 0 1px 0 rgba(255,255,255,.35);
}
.nav-group{ display:flex; flex-direction:column; gap:6px; }
.nav-label{ margin:0 0 4px 12px; font-size:11.5px; letter-spacing:.14em; color:var(--t3); }
.nav-link{
  position:relative; display:flex; align-items:center; gap:10px;
  min-height:44px; padding:10px 12px; border-radius:12px;
  font-size:14.5px; color:var(--t2); text-decoration:none;
  transition:background 220ms var(--ease), color 220ms var(--ease), transform 220ms var(--ease);
}
.nav-link:hover{ background:rgba(255,255,255,.05); color:var(--t1); }
.nav-link.active{
  background:var(--glass); color:var(--t1);
  box-shadow:var(--glass-hi);
}
.nav-link.active::before{
  content:""; position:absolute; left:0; top:12px; bottom:12px; width:2px;
  border-radius:2px; background:var(--brand-grad);
}
.nav-dot{ width:6px; height:6px; flex:0 0 6px; border-radius:50%; background:var(--brand); box-shadow:0 0 0 3px rgba(229,56,111,.16); }
.nav-dot.gold{ background:var(--accent); box-shadow:0 0 0 3px rgba(242,200,121,.16); }
.nav-dot.mint{ background:var(--mint); box-shadow:0 0 0 3px rgba(70,216,180,.16); }

.side-cta{ margin-top:auto; padding-top:18px; border-top:1px solid rgba(255,255,255,.08); display:flex; flex-direction:column; gap:10px; }
.side-note{ font-size:12.5px; color:var(--t3); padding-left:18px; }

.topbar{
  display:none; position:sticky; top:0; z-index:70;
  align-items:center; justify-content:space-between; gap:14px;
  padding:12px 20px;
  background:rgba(10,7,16,.72);
  border-bottom:1px solid transparent;
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  transition:background 220ms var(--ease), border-color 220ms var(--ease);
}
.topbar.scrolled{ background:rgba(10,7,16,.92); border-bottom-color:var(--glass-bd); }
.menu-btn{
  width:44px; height:44px; flex:0 0 44px; border-radius:12px;
  border:1px solid var(--glass-bd); background:var(--glass);
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:4px;
}
.menu-btn span{ display:block; width:18px; height:2px; border-radius:2px; background:var(--t1); transition:transform 220ms var(--ease), opacity 180ms var(--ease); }
.menu-btn.open span:nth-child(1){ transform:translateY(6px) rotate(45deg); }
.menu-btn.open span:nth-child(2){ opacity:0; }
.menu-btn.open span:nth-child(3){ transform:translateY(-6px) rotate(-45deg); }
.mask{ position:fixed; inset:0; z-index:80; background:rgba(10,7,16,.72); opacity:0; pointer-events:none; transition:opacity 220ms var(--ease); }
.mask.show{ opacity:1; pointer-events:auto; }

.page{ position:relative; z-index:1; margin-left:var(--sb); min-height:100vh; display:flex; flex-direction:column; }
.page > main{ flex:1 0 auto; }

/* ---------- 按钮 / 徽章 ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  min-height:46px; padding:0 24px; border-radius:999px;
  font-size:15px; font-weight:600; line-height:1;
  border:1px solid transparent; cursor:pointer; text-decoration:none;
  transition:transform 220ms var(--ease), box-shadow 220ms var(--ease), background 220ms var(--ease), color 220ms var(--ease), border-color 220ms var(--ease);
}
.btn-primary{ background:var(--brand-grad); color:#fff; box-shadow:0 12px 28px rgba(229,56,111,.34), inset 0 1px 0 rgba(255,255,255,.28); }
.btn-primary:hover{ color:#fff; transform:translateY(-2px); box-shadow:0 18px 38px rgba(229,56,111,.5); }
.btn-primary:active{ transform:translateY(1px); }
.btn-secondary{ background:transparent; border-color:var(--glass-bd); color:var(--t1); backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px); }
.btn-secondary:hover{ background:rgba(255,255,255,.08); color:var(--t1); transform:translateY(-2px); }
.btn-secondary:active{ transform:translateY(1px); }
.btn-sm{ min-height:40px; padding:0 18px; font-size:14px; }
.btn-block{ width:100%; }

.link-arrow{
  display:inline-flex; align-items:center; gap:6px; min-height:44px;
  font-size:14.5px; font-weight:600; color:var(--brand); text-decoration:none;
}
.link-arrow i{ transition:transform 220ms var(--ease); font-size:13px; }
.link-arrow:hover{ color:var(--brand-hi); }
.link-arrow:hover i{ transform:translateX(6px); }

.badge{
  display:inline-flex; align-items:center; gap:6px;
  padding:6px 12px; border-radius:999px;
  border:1px solid var(--glass-bd); background:var(--glass);
  font-size:12.5px; color:var(--t2); white-space:nowrap;
  backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
}
.badge-gold{ color:var(--accent); border-color:rgba(242,200,121,.3); }
.badge-mint{ color:var(--mint); border-color:rgba(70,216,180,.3); }
.badge-brand{ color:#FF86A9; border-color:rgba(229,56,111,.34); }

/* ---------- 紧凑标题带 ---------- */
.page-head{
  position:relative; overflow:hidden;
  padding:52px 0 46px;
  border-bottom:1px solid rgba(255,255,255,.07);
}
.page-head::before{
  content:""; position:absolute; inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.24;
  -webkit-mask-image:linear-gradient(90deg, #000 0%, rgba(0,0,0,.45) 52%, transparent 82%);
  mask-image:linear-gradient(90deg, #000 0%, rgba(0,0,0,.45) 52%, transparent 82%);
  pointer-events:none;
}
.page-head::after{
  content:""; position:absolute; right:-160px; top:-160px; width:460px; height:460px;
  background:radial-gradient(circle, rgba(229,56,111,.24), transparent 64%);
  pointer-events:none;
}
.page-head .container{ position:relative; z-index:2; }
.breadcrumb{
  display:flex; align-items:center; gap:8px; flex-wrap:nowrap;
  margin-bottom:20px; font-size:12.5px; color:var(--t3);
  overflow:hidden; white-space:nowrap; text-overflow:ellipsis;
}
.breadcrumb a{ color:var(--t3); text-decoration:none; }
.breadcrumb a:hover{ color:var(--brand-hi); }
.breadcrumb span{ color:var(--t3); opacity:.7; }
.breadcrumb em{ font-style:normal; color:var(--t2); overflow:hidden; text-overflow:ellipsis; }
.page-head h1{
  margin:14px 0 16px;
  font-size:clamp(28px,3.6vw,44px); line-height:1.18; font-weight:800;
  letter-spacing:.005em;
}
.page-head .lede{ max-width:720px; font-size:15.5px; line-height:1.9; color:var(--t2); }
.head-actions{ display:flex; flex-wrap:wrap; gap:14px; margin-top:26px; }
.head-meta{ display:flex; flex-wrap:wrap; gap:10px 22px; margin-top:24px; font-size:13px; color:var(--t3); }
.head-meta li{ display:flex; align-items:center; gap:8px; }
.head-meta b{ color:var(--accent); font-variant-numeric:tabular-nums; font-weight:700; }

/* ---------- 交替叙述 ---------- */
.alt-list{ display:flex; flex-direction:column; }
.alt-row{
  display:grid; grid-template-columns:1.02fr .98fr; gap:52px; align-items:center;
  padding:46px 0; border-bottom:1px solid rgba(255,255,255,.07);
}
.alt-row:first-child{ padding-top:8px; }
.alt-row:last-child{ border-bottom:0; padding-bottom:8px; }
.alt-row.reverse{ grid-template-columns:.98fr 1.02fr; }
.alt-row.reverse .alt-figure{ order:-1; }
.alt-text h3{ font-size:19px; font-weight:600; margin:12px 0 14px; line-height:1.5; }
.alt-text p{ font-size:15.5px; line-height:1.9; color:var(--t2); }
.alt-text p + p{ margin-top:12px; }
.alt-figure{
  position:relative; overflow:hidden; border-radius:var(--r-img);
  background:var(--bg-2); box-shadow:var(--shadow-card);
  border:1px solid var(--glass-bd);
}
.alt-figure::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(10,7,16,0) 42%, rgba(10,7,16,.5) 100%);
  pointer-events:none;
}
.alt-figure img{ width:100%; aspect-ratio:4/3; object-fit:cover; transition:transform 420ms var(--ease); }
.alt-row:hover .alt-figure img{ transform:scale(1.03); }

/* ---------- 指标条 ---------- */
.metrics{
  display:grid; grid-template-columns:repeat(4,1fr); gap:22px;
  padding:34px 28px; border-radius:22px;
  border:1px solid var(--glass-bd); background:var(--glass);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px) saturate(120%); -webkit-backdrop-filter:blur(18px) saturate(120%);
}
.metric{ position:relative; padding-left:16px; }
.metric::before{ content:""; position:absolute; left:0; top:6px; bottom:6px; width:2px; border-radius:2px; background:linear-gradient(180deg, rgba(242,200,121,.85), rgba(229,56,111,.5)); }
.metric-num{ font-size:clamp(26px,3vw,38px); font-weight:800; color:var(--accent); line-height:1.1; font-variant-numeric:tabular-nums; }
.metric-num small{ font-size:13px; font-weight:600; color:var(--t2); margin-left:6px; }
.metric-label{ margin-top:8px; font-size:14px; color:var(--t2); line-height:1.7; }

/* ---------- 三步准备 ---------- */
.steps{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.step-card{
  position:relative; padding:28px 26px; border-radius:var(--r-card);
  border:1px solid var(--glass-bd); background:var(--glass);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(16px) saturate(120%); -webkit-backdrop-filter:blur(16px) saturate(120%);
  transition:transform 220ms var(--ease), box-shadow 220ms var(--ease), background 220ms var(--ease);
}
.step-card:hover{ transform:translateY(-3px); box-shadow:var(--shadow-hover); background:rgba(255,255,255,.075); }
.step-no{ font-size:12.5px; letter-spacing:.16em; color:var(--accent); font-variant-numeric:tabular-nums; }
.step-card h3{ margin:12px 0 10px; font-size:17px; font-weight:600; }
.step-card p{ font-size:14.5px; line-height:1.85; color:var(--t2); }
.step-icon{
  width:44px; height:44px; border-radius:13px; display:grid; place-items:center;
  background:rgba(229,56,111,.14); color:#FF86A9; font-size:17px;
  border:1px solid rgba(229,56,111,.24); margin-bottom:16px;
}

/* ---------- FAQ ---------- */
.faq{ max-width:860px; margin:0 auto; display:flex; flex-direction:column; gap:12px; }
.faq-item{
  border:1px solid var(--glass-bd); border-radius:16px;
  background:var(--glass); overflow:hidden;
  backdrop-filter:blur(14px) saturate(120%); -webkit-backdrop-filter:blur(14px) saturate(120%);
  transition:background 220ms var(--ease), border-color 220ms var(--ease), box-shadow 220ms var(--ease);
}
.faq-item:hover{ background:rgba(255,255,255,.07); }
.faq-q{
  width:100%; display:flex; align-items:center; gap:14px;
  min-height:56px; padding:16px 20px;
  font-size:16px; font-weight:600; color:var(--t1); text-align:left; line-height:1.6;
}
.faq-mark{
  width:26px; height:26px; flex:0 0 26px; border-radius:50%;
  display:grid; place-items:center; font-size:13px; font-weight:700;
  background:rgba(229,56,111,.16); color:#FF86A9;
}
.faq-plus{ margin-left:auto; flex:0 0 auto; color:var(--t3); font-size:14px; transition:transform 220ms var(--ease), color 220ms var(--ease); }
.faq-item.open{ border-color:rgba(229,56,111,.4); background:rgba(255,255,255,.078); box-shadow:inset 2px 0 0 var(--brand), 0 14px 30px rgba(0,0,0,.35); }
.faq-item.open .faq-plus{ transform:rotate(45deg); color:var(--brand); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height 320ms var(--ease); }
.faq-a p{ padding:0 22px 20px 60px; font-size:15px; line-height:1.85; color:var(--t2); }

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative; overflow:hidden;
  display:flex; align-items:center; justify-content:space-between; gap:28px; flex-wrap:wrap;
  padding:42px 44px; border-radius:24px;
  border:1px solid rgba(229,56,111,.28);
  background:
    radial-gradient(520px 240px at 88% 0%, rgba(242,200,121,.14), transparent 70%),
    linear-gradient(100deg, rgba(229,56,111,.16), rgba(29,17,36,.6)),
    var(--bg-2);
  box-shadow:0 24px 54px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.08);
}
.cta-band h2{ font-size:clamp(21px,2.4vw,28px); line-height:1.35; font-weight:700; max-width:620px; }
.cta-band p{ margin-top:10px; font-size:14.5px; color:var(--t2); max-width:620px; }
.cta-actions{ display:flex; gap:14px; flex-wrap:wrap; }

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative; flex:0 0 auto;
  margin-top:24px; padding:64px 0 0;
  border-top:1px solid var(--glass-bd);
  background:linear-gradient(180deg, rgba(20,11,27,.7), rgba(10,7,16,.92));
}
.site-footer::before{
  content:""; position:absolute; top:0; left:0; right:0; height:1px;
  background:linear-gradient(90deg, transparent, rgba(229,56,111,.6) 35%, rgba(242,200,121,.5) 62%, transparent);
}
.footer-grid{ display:grid; grid-template-columns:1.5fr 1fr 1fr 1.2fr; gap:36px; padding-bottom:46px; }
.footer-brand .logo{ margin-bottom:16px; }
.footer-desc{ font-size:14px; line-height:1.85; color:var(--t2); }
.footer-badges{ display:flex; flex-wrap:wrap; gap:8px; margin-top:18px; }
.footer-title{ font-size:14px; font-weight:700; color:var(--t1); margin-bottom:14px; }
.footer-link{ display:block; padding:6px 0; font-size:14px; color:var(--t2); text-decoration:none; }
.footer-link:hover{ color:var(--brand-hi); }
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center; gap:16px; flex-wrap:wrap;
  padding:20px 0 28px; border-top:1px solid rgba(255,255,255,.07);
  font-size:12.5px; color:var(--t3);
}

/* ---------- 回顶 ---------- */
.to-top{
  position:fixed; right:24px; bottom:24px; z-index:75;
  width:46px; height:46px; border-radius:50%;
  display:grid; place-items:center;
  border:1px solid var(--glass-bd); background:rgba(29,17,36,.85); color:var(--t1);
  backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
  box-shadow:0 12px 28px rgba(0,0,0,.45);
  opacity:0; pointer-events:none;
  transition:opacity 220ms var(--ease), transform 220ms var(--ease), box-shadow 220ms var(--ease);
}
.to-top.show{ opacity:1; pointer-events:auto; }
.to-top:hover{ transform:translateY(-3px); box-shadow:0 16px 32px rgba(229,56,111,.35); }

/* ---------- 断点 ---------- */
@media (max-width:1023px){
  :root{ --pad-sec:72px; }
  .topbar{ display:flex; }
  .page{ margin-left:0; }
  .drawer{
    left:auto; right:0; width:280px; height:100vh;
    transform:translateX(105%);
    border-right:0; border-left:1px solid var(--glass-bd);
    transition:transform 260ms var(--ease);
    z-index:90;
  }
  .drawer.open{ transform:translateX(0); }
  .alt-row, .alt-row.reverse{ grid-template-columns:1fr; gap:24px; padding:36px 0; }
  .alt-row.reverse .alt-figure{ order:0; }
  .alt-figure img{ aspect-ratio:16/9; }
  .metrics{ grid-template-columns:repeat(2,1fr); gap:20px; padding:28px 24px; }
  .steps{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; gap:30px; }
  .cta-band{ padding:34px 28px; }
}
@media (min-width:1024px){
  .mask{ display:none; }
}
@media (max-width:767px){
  :root{ --pad-sec:56px; }
  body{ font-size:15px; }
  .container{ padding:0 20px; }
  .page-head{ padding:34px 0 34px; }
  .page-head h1{ font-size:clamp(25px,7vw,32px); }
  .page-head .lede{ font-size:15px; }
  .sec-title{ font-size:clamp(21px,6vw,26px); }
  .metrics{ grid-template-columns:repeat(2,1fr); gap:16px; padding:22px 18px; }
  .metric-num{ font-size:clamp(22px,7vw,28px); }
  .faq-q{ font-size:15px; padding:14px 16px; }
  .faq-a p{ padding:0 18px 18px 56px; font-size:14.5px; }
  .footer-grid{ grid-template-columns:1fr; gap:26px; padding-bottom:34px; }
  .site-footer{ padding:48px 0 0; }
  .cta-band{ padding:28px 20px; border-radius:20px; }
}
@media (max-width:479px){
  .container{ padding:0 18px; }
  .btn{ width:100%; }
  .btn-sm{ width:auto; }
  .head-actions{ flex-direction:column; }
  .cta-actions{ flex-direction:column; width:100%; }
  .step-card{ padding:20px 16px; }
  .to-top{ right:16px; bottom:16px; }
}

/* roulang page: category3 */
:root{
  --bg-0:#0A0710;--bg-1:#140B1B;--bg-2:#1D1124;
  --brand:#E5386F;--brand-2:#FF7A5E;
  --brand-grad:linear-gradient(100deg,#E5386F 0%,#FF7A5E 100%);
  --accent:#F2C879;--mint:#46D8B4;--err:#FF6B6B;
  --t1:#F7F2F6;--t2:#BFAFBD;--t3:#8A7C8C;
  --glass:rgba(255,255,255,.055);--glass-bd:rgba(255,255,255,.10);
  --r-card:18px;--r-btn:999px;--r-input:12px;--r-img:14px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.08);
  --shadow-hover:0 24px 54px rgba(0,0,0,.52),0 0 0 1px rgba(229,56,111,.22),inset 0 1px 0 rgba(255,255,255,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --side:240px;
  --sticky-top:0px;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
@media (min-width:1440px){:root{--side:264px}}
@media (max-width:1023px){:root{--sticky-top:64px}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;background:var(--bg-0);color:var(--t1);
  font-family:var(--font);font-size:16px;line-height:1.9;font-weight:400;
  min-height:100vh;overflow-x:hidden;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(920px 560px at 80% -8%,rgba(229,56,111,.18),transparent 62%),
    radial-gradient(720px 500px at 4% 96%,rgba(242,200,121,.10),transparent 60%),
    linear-gradient(180deg,#0A0710 0%,#140B1B 48%,#0A0710 100%);
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--brand);text-decoration:none;transition:color 220ms var(--ease)}
a:hover{color:#FF5C8A}
p{margin:0 0 1.25em}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:.2px}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(229,56,111,.25);border-radius:8px}
.skip{position:absolute;left:-9999px;top:0;background:var(--bg-2);color:var(--t1);padding:10px 16px;border-radius:0 0 12px 0;z-index:200}
.skip:focus{left:0}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
@media (max-width:520px){.container{padding:0 20px}}

/* ===== 左侧竖栏 ===== */
.sidebar{
  position:fixed;top:0;left:0;width:var(--side);height:100vh;z-index:50;
  display:flex;flex-direction:column;gap:20px;
  padding:26px 18px 22px;overflow-y:auto;
  background:linear-gradient(180deg,rgba(29,17,36,.92),rgba(10,7,16,.97));
  border-right:1px solid var(--glass-bd);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  box-shadow:inset -1px 0 0 rgba(255,255,255,.03);
}
.sidebar::-webkit-scrollbar{width:6px}
.sidebar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:99px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--t1);font-weight:800;font-size:16px;letter-spacing:.3px}
.logo:hover{color:var(--t1)}
.logo-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:12px;
  display:grid;place-items:center;font-size:13px;font-weight:800;color:#fff;
  background:var(--brand-grad);box-shadow:0 8px 20px rgba(229,56,111,.35),inset 0 1px 0 rgba(255,255,255,.35);
}
.nav-group{display:flex;flex-direction:column;gap:4px}
.nav-label{font-size:12px;color:var(--t3);letter-spacing:1.5px;padding:0 12px 6px}
.nav-link{
  position:relative;display:flex;align-items:center;gap:10px;
  min-height:44px;padding:8px 12px;border-radius:12px;
  font-size:14.5px;color:var(--t2);line-height:1.5;
  transition:background 220ms var(--ease),color 220ms var(--ease),transform 220ms var(--ease);
}
.nav-link::before{
  content:"";position:absolute;left:0;top:50%;width:2px;height:18px;border-radius:2px;
  background:var(--brand);transform:translateY(-50%) scaleY(0);transform-origin:center;
  transition:transform 220ms var(--ease);
}
.nav-link:hover{background:var(--glass);color:var(--t1)}
.nav-link.active{
  background:var(--glass);color:var(--t1);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.nav-link.active::before{transform:translateY(-50%) scaleY(1)}
.nav-dot{width:7px;height:7px;flex:0 0 7px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(229,56,111,.7)}
.nav-dot.gold{background:var(--accent);box-shadow:0 0 10px rgba(242,200,121,.65)}
.nav-dot.mint{background:var(--mint);box-shadow:0 0 10px rgba(70,216,180,.6)}
.side-cta{margin-top:auto;display:flex;flex-direction:column;gap:10px;
  padding:16px;border-radius:16px;border:1px solid var(--glass-bd);
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  backdrop-filter:blur(18px) saturate(120%);
}
.side-note{margin:0;font-size:12.5px;color:var(--t3);line-height:1.7}

/* ===== 顶部栏（移动） ===== */
.topbar{
  position:fixed;top:0;left:0;right:0;height:64px;z-index:60;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 20px;background:transparent;transition:background 220ms var(--ease),border-color 220ms var(--ease);
  border-bottom:1px solid transparent;
}
.topbar.scrolled{
  background:rgba(20,11,27,.88);border-bottom-color:var(--glass-bd);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
}
.burger{
  width:44px;height:44px;border:1px solid var(--glass-bd);border-radius:12px;
  background:var(--glass);display:grid;place-items:center;gap:0;cursor:pointer;padding:0;
}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t1);
  transition:transform 220ms var(--ease),opacity 220ms var(--ease);margin:2.5px 0}
.burger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.active span:nth-child(2){opacity:0}
.burger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media (min-width:1024px){.topbar{display:none}}

/* ===== 抽屉 ===== */
.drawer{
  position:fixed;top:0;right:0;width:280px;height:100vh;z-index:80;
  display:flex;flex-direction:column;gap:20px;padding:26px 20px;overflow-y:auto;
  background:linear-gradient(180deg,#1D1124,#0A0710);
  border-left:1px solid var(--glass-bd);
  transform:translateX(103%);transition:transform 280ms var(--ease);
}
.drawer.open{transform:none}
.overlay{
  position:fixed;inset:0;z-index:70;background:rgba(10,7,16,.72);
  opacity:0;pointer-events:none;transition:opacity 260ms var(--ease);
}
.overlay.open{opacity:1;pointer-events:auto}
@media (min-width:1024px){.drawer,.overlay{display:none}}

/* ===== 主体 ===== */
.main{position:relative;z-index:1;margin-left:var(--side);padding-bottom:0}
@media (max-width:1023px){.main{margin-left:0;padding-top:64px}}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.3px;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),background 220ms var(--ease),color 220ms var(--ease);
}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-primary{
  color:#fff;background:var(--brand-grad);
  box-shadow:0 12px 30px rgba(229,56,111,.36),inset 0 1px 0 rgba(255,255,255,.28);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 42px rgba(229,56,111,.52),inset 0 1px 0 rgba(255,255,255,.32)}
.btn-primary:active{transform:translateY(1px)}
.btn-secondary{
  color:var(--t1);background:transparent;border-color:var(--glass-bd);
}
.btn-secondary:hover{background:rgba(255,255,255,.08);color:var(--t1);transform:translateY(-2px)}
.btn-secondary:active{transform:translateY(1px)}
.btn-ghost{
  color:var(--brand);background:transparent;border-color:transparent;padding:0 6px;min-height:40px;
}
.btn-ghost:hover{color:#FF5C8A;gap:12px}
.btn-ghost .arrow{transition:transform 220ms var(--ease)}
.btn-ghost:hover .arrow{transform:translateX(6px)}
.btn[disabled],.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-btn);
  font-size:12.5px;line-height:1.5;color:var(--brand);
  background:var(--glass);border:1px solid var(--glass-bd);
  backdrop-filter:blur(18px) saturate(120%);
  white-space:nowrap;
}
.badge-gold{color:var(--accent)}
.badge-mint{color:var(--mint)}
.badge-row{display:flex;flex-wrap:wrap;gap:10px}

/* ===== 首屏标题带 ===== */
.page-hero{position:relative;overflow:hidden;padding:58px 0 52px;border-bottom:1px solid rgba(255,255,255,.06)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.30;filter:saturate(115%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(720px 400px at 76% 4%,rgba(229,56,111,.32),transparent 62%),
    linear-gradient(180deg,rgba(10,7,16,.74),rgba(10,7,16,.95));
}
.page-hero .container{position:relative;z-index:2}
.crumb{
  font-size:12.5px;color:var(--t3);margin-bottom:18px;
  display:flex;gap:8px;align-items:center;flex-wrap:wrap;
}
.crumb a{color:var(--t3)}
.crumb a:hover{color:var(--brand)}
.page-hero h1{
  font-size:clamp(29px,4vw,46px);font-weight:800;line-height:1.15;
  margin:14px 0 16px;max-width:820px;
}
.lead{max-width:660px;font-size:16.5px;line-height:1.9;color:var(--t2);margin:0 0 26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-facts{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.fact{
  display:flex;align-items:baseline;gap:8px;padding:12px 16px;border-radius:14px;
  background:var(--glass);border:1px solid var(--glass-bd);
  backdrop-filter:blur(18px) saturate(120%);
}
.fact b{font-size:19px;font-weight:800;color:var(--accent)}
.fact span{font-size:13px;color:var(--t2)}

/* ===== 锚点标签条 ===== */
.chipbar{
  position:sticky;top:var(--sticky-top);z-index:30;
  padding:14px 0;margin-bottom:6px;
  background:linear-gradient(180deg,rgba(10,7,16,.94),rgba(10,7,16,.74));
  border-bottom:1px solid rgba(255,255,255,.06);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.chip-scroll{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}
.chip-scroll::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  min-height:40px;padding:0 18px;border-radius:var(--r-btn);
  font-size:14px;color:var(--t2);white-space:nowrap;
  background:var(--glass);border:1px solid var(--glass-bd);
  transition:background 220ms var(--ease),color 220ms var(--ease),transform 220ms var(--ease);
}
.chip:hover{background:rgba(255,255,255,.10);color:var(--t1);transform:translateY(-2px)}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--brand)}

/* ===== 工作区栅格 ===== */
.workspace{display:grid;grid-template-columns:minmax(0,1fr);gap:26px;padding:46px 0 0}
@media (min-width:1200px){.workspace{grid-template-columns:minmax(0,1fr) 322px;gap:28px}}

.section{padding:0 0 54px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:20px}
.section-head h2{font-size:clamp(21px,2.4vw,28px);font-weight:700;display:flex;align-items:center;gap:12px}
.section-head h2::before{content:"";width:3px;height:20px;border-radius:2px;background:var(--brand);flex:0 0 3px}
.section-head .hint{font-size:13px;color:var(--t3)}
.group-title{
  font-size:19px;font-weight:700;margin:0 0 4px;display:flex;align-items:center;gap:10px;
}
.group-title .num{
  font-size:14px;color:var(--accent);font-weight:800;letter-spacing:1px;
  border:1px solid rgba(242,200,121,.34);border-radius:8px;padding:2px 8px;
}
.group-desc{font-size:14px;color:var(--t3);margin:0 0 14px}

/* ===== 紧凑条目列表 ===== */
.entry-list{
  border:1px solid var(--glass-bd);border-radius:var(--r-card);
  background:var(--glass);box-shadow:var(--shadow-card);overflow:hidden;
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
}
.entry{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:16px;
  min-height:64px;padding:16px 20px;
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background 220ms var(--ease),transform 220ms var(--ease);
}
.entry:last-child{border-bottom:0}
.entry:hover{background:rgba(255,255,255,.06)}
.entry-num{font-size:13.5px;font-weight:800;color:var(--accent);letter-spacing:1px;min-width:26px}
.entry-body h3{font-size:16px;font-weight:600;margin-bottom:2px;line-height:1.6}
.entry-body p{margin:0;font-size:14px;color:var(--t2);line-height:1.75}
.entry-arrow{
  color:var(--brand);font-size:18px;line-height:1;
  transition:transform 220ms var(--ease),color 220ms var(--ease);
}
.entry:hover .entry-arrow{transform:translateX(5px);color:#FF5C8A}

/* ===== 数据带 ===== */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;
  padding:28px 24px;border-radius:var(--r-card);
  background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--glass-bd);box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
}
.stat .num{
  display:block;font-size:clamp(28px,3.4vw,44px);line-height:1.05;font-weight:800;
  color:var(--accent);font-variant-numeric:tabular-nums;
}
.stat .num small{font-size:15px;font-weight:700;margin-left:4px;color:var(--t2)}
.stat .cap{margin-top:8px;font-size:14px;line-height:1.75;color:var(--t2)}

/* ===== 图文小节 ===== */
.media-row{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:26px;align-items:center;
  padding:24px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--glass-bd);box-shadow:var(--shadow-card);
}
.media-row img{aspect-ratio:16/9;width:100%;object-fit:cover;background:var(--bg-2)}
.media-row h3{font-size:20px;margin-bottom:10px}
.media-row p{font-size:15px;color:var(--t2);line-height:1.85;margin-bottom:14px}
.check-list{display:flex;flex-direction:column;gap:10px}
.check-list li{display:flex;gap:10px;font-size:14px;color:var(--t2);line-height:1.75}
.check-list li::before{
  content:"";flex:0 0 16px;width:16px;height:16px;margin-top:5px;border-radius:50%;
  background:radial-gradient(circle at 50% 50%,var(--brand) 0 30%,transparent 32%),
             linear-gradient(140deg,rgba(229,56,111,.35),rgba(242,200,121,.25));
  border:1px solid rgba(229,56,111,.45);
}

/* ===== 概览玻璃卡 ===== */
.overview{position:relative}
.overview-inner{
  position:sticky;top:calc(var(--sticky-top) + 18px);
  display:flex;flex-direction:column;gap:16px;
  padding:22px;border-radius:var(--r-card);
  background:linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.025));
  border:1px solid var(--glass-bd);box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
}
.overview-inner h2{font-size:17px;font-weight:700}
.overview-inner img{aspect-ratio:16/9;width:100%;object-fit:cover;background:var(--bg-2)}
.ov-list{display:flex;flex-direction:column}
.ov-list li{
  display:flex;justify-content:space-between;gap:12px;
  padding:11px 0;font-size:13.5px;color:var(--t2);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.ov-list li:last-child{border-bottom:0}
.ov-list li b{color:var(--accent);font-weight:700;white-space:nowrap}
.ov-jump{display:flex;flex-direction:column;gap:2px;margin-top:2px}
.ov-jump a{
  display:flex;align-items:center;gap:8px;min-height:40px;padding:0 10px;border-radius:10px;
  font-size:14px;color:var(--t2);transition:background 220ms var(--ease),color 220ms var(--ease);
}
.ov-jump a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);flex:0 0 6px}
.ov-jump a:hover{background:rgba(255,255,255,.07);color:var(--t1)}

/* ===== FAQ ===== */
.faq{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
  border:1px solid var(--glass-bd);border-radius:16px;overflow:hidden;
  background:var(--glass);transition:background 220ms var(--ease),border-color 220ms var(--ease);
}
.faq-item.open{
  background:rgba(255,255,255,.085);
  border-color:rgba(255,255,255,.14);
  box-shadow:inset 1px 0 0 rgba(229,56,111,.9);
}
.faq-q{
  width:100%;min-height:58px;display:flex;align-items:center;gap:12px;
  padding:14px 18px;background:transparent;border:0;cursor:pointer;text-align:left;
  color:var(--t1);font-size:15.5px;font-weight:600;line-height:1.6;
}
.faq-q .qmark{
  flex:0 0 24px;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;
  font-size:12.5px;font-weight:800;color:var(--brand);
  border:1px solid rgba(229,56,111,.45);background:rgba(229,56,111,.10);
}
.faq-q .plus{
  margin-left:auto;flex:0 0 18px;width:18px;height:18px;position:relative;
  transition:transform 260ms var(--ease);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-q .plus::before{left:0;top:8px;width:18px;height:2px}
.faq-q .plus::after{left:8px;top:0;width:2px;height:18px}
.faq-item.open .faq-q .plus{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height 320ms var(--ease);
}
.faq-a p{
  margin:0;padding:0 18px 18px 54px;font-size:15px;line-height:1.85;color:var(--t2);
}
@media (max-width:520px){.faq-a p{padding-left:18px}}

/* ===== CTA 带 ===== */
.cta-band{
  display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:26px;
  padding:34px 30px;border-radius:var(--r-card);
  background:
    radial-gradient(560px 300px at 12% 10%,rgba(229,56,111,.22),transparent 60%),
    linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.02));
  border:1px solid var(--glass-bd);box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
}
.cta-band h2{font-size:clamp(21px,2.4vw,28px);margin-bottom:8px}
.cta-band p{margin:0;font-size:15px;color:var(--t2);max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
@media (max-width:900px){.cta-band{grid-template-columns:1fr}}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;z-index:1;margin-left:var(--side);margin-top:20px;
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,rgba(229,56,111,.6),rgba(242,200,121,.35),rgba(255,255,255,0)) 1;
  background:linear-gradient(180deg,rgba(20,11,27,.6),rgba(10,7,16,.98));
  padding:56px 0 26px;
}
@media (max-width:1023px){.site-footer{margin-left:0}}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1.2fr;gap:30px;
}
.footer-brand .logo{margin-bottom:14px}
.footer-desc{font-size:14px;color:var(--t3);line-height:1.85;margin:0}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-title{font-size:13px;letter-spacing:1.2px;color:var(--t3);margin-bottom:14px}
.footer-link{
  display:block;min-height:36px;line-height:36px;font-size:14px;color:var(--t2);
  transition:color 220ms var(--ease),padding-left 220ms var(--ease);
}
.footer-link:hover{color:var(--brand);padding-left:4px}
.footer-bottom{
  margin-top:34px;padding-top:18px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:var(--t3);
}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr}}

/* ===== 回到顶部 ===== */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:65;
  width:48px;height:48px;border-radius:50%;cursor:pointer;
  border:1px solid var(--glass-bd);background:rgba(29,17,36,.9);color:var(--t1);
  display:grid;place-items:center;font-size:16px;
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity 240ms var(--ease),transform 240ms var(--ease),box-shadow 240ms var(--ease);
  backdrop-filter:blur(14px);
}
.to-top.show{opacity:1;pointer-events:auto;transform:none}
.to-top:hover{box-shadow:0 12px 30px rgba(229,56,111,.34)}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .page-hero{padding:44px 0 40px}
  .section{padding:0 0 44px}
  .workspace{padding-top:34px}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
  .media-row{grid-template-columns:1fr}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .page-hero h1{margin-top:12px}
  .lead{font-size:15.5px}
  .entry{grid-template-columns:auto minmax(0,1fr);gap:12px;padding:14px 16px}
  .entry-arrow{grid-column:2;justify-self:end}
  .stat-strip{padding:22px 18px}
  .cta-band{padding:26px 20px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%}
  .fact{padding:10px 14px}
  .section-head h2{font-size:20px}
  .media-row{padding:18px}
  .overview-inner{padding:18px}
  .chip{min-height:38px;padding:0 14px;font-size:13.5px}
}