/* roulang page: index */
:root{
  --bg-0:#061219;
  --bg-1:#081823;
  --bg-2:#0C2130;
  --glass:rgba(255,255,255,.045);
  --line:rgba(150,225,240,.14);
  --line-soft:rgba(150,225,240,.08);
  --brand:#1FD3B5;
  --brand-deep:#14A38F;
  --brand-2:#4FA8FF;
  --accent:#FFC46B;
  --txt:#EAF6F8;
  --txt-2:#9FB6BF;
  --txt-3:#6C8590;
  --ok:#2FD6A8;
  --warn:#FFB65C;
  --err:#FF7B72;
  --r-card:20px;
  --r-panel:24px;
  --r-btn:14px;
  --r-input:12px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-glow:0 20px 50px -20px rgba(31,211,181,.35);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--txt);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:radial-gradient(900px 520px at 8% -6%, rgba(31,211,181,.10), transparent 62%),
             radial-gradient(760px 460px at 96% 4%, rgba(79,168,255,.08), transparent 66%);
  z-index:0;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p,figure{margin:0}
h1{font-size:clamp(30px,4.4vw,52px);font-weight:700;line-height:1.22;letter-spacing:-.01em}
h2{font-size:clamp(24px,2.8vw,34px);font-weight:700;line-height:1.3;letter-spacing:-.005em}
h3{font-size:20px;font-weight:600;line-height:1.45}
h4{font-size:17px;font-weight:600;line-height:1.5}
::selection{background:rgba(31,211,181,.32);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

/* 布局容器 */
.wrap{max-width:1180px;margin:0 auto;padding:0 32px;position:relative;z-index:1}
.sec{padding:112px 0;position:relative}
.sec--tight{padding:88px 0}
.sec-line{border-top:1px solid var(--line-soft)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:48px}
.sec-head__text{max-width:660px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;letter-spacing:.04em;color:var(--brand);
  padding:6px 14px;border-radius:999px;
  background:rgba(31,211,181,.08);border:1px solid rgba(31,211,181,.28);
  margin-bottom:18px;
}
.eyebrow--amber{color:var(--accent);background:rgba(255,196,107,.08);border-color:rgba(255,196,107,.3)}
.eyebrow--mist{color:var(--brand-2);background:rgba(79,168,255,.08);border-color:rgba(79,168,255,.3)}
.lead{color:var(--txt-2);font-size:16.5px;line-height:1.85;margin-top:16px;max-width:62ch}
.muted{color:var(--txt-3)}
.grad-text{background:linear-gradient(96deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}

/* 顶部信息条 */
.topbar{background:var(--bg-1);border-bottom:1px solid var(--line-soft);font-size:12.5px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;height:36px}
.topbar__left{display:flex;align-items:center;gap:12px;color:var(--txt-3)}
.topbar__dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(31,211,181,.9)}
.topbar__domain{color:var(--txt-2);letter-spacing:.02em}
.topbar__tip{color:var(--txt-3)}
.topbar__right{display:flex;align-items:center;gap:14px;color:var(--txt-2)}
.topbar__right a{transition:color 240ms var(--ease)}
.topbar__right a:hover{color:var(--brand)}
.topbar__sep{width:1px;height:12px;background:var(--line)}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:60}
.navbar{background:rgba(8,24,35,.62);border-bottom:1px solid transparent;transition:background 240ms var(--ease),border-color 240ms var(--ease),backdrop-filter 240ms var(--ease)}
.site-header.is-scrolled .navbar{background:rgba(6,18,25,.82);backdrop-filter:blur(18px);border-bottom-color:var(--line-soft)}
.navbar__inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo__mark{width:24px;height:24px;flex-shrink:0}
.logo__text{font-size:19px;font-weight:700;letter-spacing:-.01em;display:flex;align-items:baseline;gap:1px}
.logo__text .l1{background:linear-gradient(96deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.logo__text .l2{color:var(--txt)}
.navmenu{display:flex;align-items:center;gap:30px}
.navmenu a{position:relative;font-size:14.5px;color:var(--txt-2);padding:6px 0;transition:color 240ms var(--ease)}
.navmenu a::after{content:"";position:absolute;left:50%;bottom:0;width:0;height:2px;background:var(--brand);border-radius:2px;transform:translateX(-50%);transition:width 260ms var(--ease)}
.navmenu a:hover{color:var(--txt)}
.navmenu a:hover::after{width:100%}
.navmenu a.is-active{color:var(--brand)}
.navmenu a.is-active::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:12px}
.icon-btn{width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:var(--glass);border:1px solid var(--line);color:var(--txt-2);transition:all 240ms var(--ease)}
.icon-btn:hover{color:var(--brand);border-color:rgba(31,211,181,.4);transform:translateY(-2px)}
.burger{display:none}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);font-size:14.5px;font-weight:600;padding:13px 24px;min-height:44px;transition:all 240ms var(--ease);white-space:nowrap}
.btn-glow{background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:var(--bg-0);box-shadow:0 8px 30px -6px rgba(31,211,181,.55)}
.btn-glow:hover{filter:brightness(1.08);box-shadow:0 12px 38px -6px rgba(31,211,181,.7);transform:translateY(-2px)}
.btn-glow:active{transform:translateY(0)}
.btn-ghost{background:var(--glass);border:1px solid var(--line);color:var(--brand);backdrop-filter:blur(12px)}
.btn-ghost:hover{background:rgba(31,211,181,.08);border-color:rgba(31,211,181,.45);transform:translateY(-2px)}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand-2);font-size:14.5px;font-weight:500;padding:6px 0;min-height:44px;transition:color 240ms var(--ease)}
.btn-text svg{transition:transform 240ms var(--ease)}
.btn-text:hover{color:var(--brand)}
.btn-text:hover svg{transform:translateX(3px)}
.btn-block{width:100%}

/* 玻璃面板 */
.glass-panel{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  backdrop-filter:blur(18px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.card-soft{
  background:var(--bg-2);
  border:1px solid var(--line-soft);
  border-radius:var(--r-card);
  transition:transform 240ms var(--ease),border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
.card-soft:hover{transform:translateY(-4px);border-color:rgba(31,211,181,.4);box-shadow:var(--shadow-glow)}
.tag-pill{
  display:inline-flex;align-items:center;
  font-size:11.5px;font-weight:500;letter-spacing:.04em;
  padding:4px 11px;border-radius:999px;
  border:1px solid rgba(79,168,255,.32);
  background:rgba(79,168,255,.08);
  color:var(--brand-2);
}
.tag-pill--amber{border-color:rgba(255,196,107,.32);background:rgba(255,196,107,.08);color:var(--accent)}
.tag-pill--brand{border-color:rgba(31,211,181,.32);background:rgba(31,211,181,.08);color:var(--brand)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}

/* HERO 首页 */
.hero{
  position:relative;
  overflow:hidden;
  padding:96px 0 104px;
  background-image:linear-gradient(160deg, rgba(6,18,25,.78) 0%, rgba(6,18,25,.9) 58%, rgba(6,18,25,.96) 100%), url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center 30%;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(620px 420px at 6% 4%, rgba(31,211,181,.18), transparent 68%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:linear-gradient(rgba(150,225,240,.6) 1px, transparent 1px),
                   linear-gradient(90deg, rgba(150,225,240,.6) 1px, transparent 1px);
  background-size:40px 40px;
  mask-image:linear-gradient(180deg, rgba(0,0,0,.9), transparent 78%);
  -webkit-mask-image:linear-gradient(180deg, rgba(0,0,0,.9), transparent 78%);
}
.hero__grid{display:grid;grid-template-columns:6fr 6fr;gap:64px;align-items:center;position:relative;z-index:2}
.hero__title{margin-bottom:22px}
.hero__sub{font-size:17px;color:var(--txt-2);max-width:34ch;line-height:1.8}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero__metrics{display:flex;align-items:stretch;gap:0;margin-top:44px;flex-wrap:wrap}
.metric{padding:0 26px;border-left:1px solid var(--line-soft)}
.metric:first-child{border-left:0;padding-left:0}
.metric__num{font-size:28px;font-weight:700;line-height:1.2;color:var(--brand);letter-spacing:-.01em}
.metric__num--amber{color:var(--accent)}
.metric__label{font-size:13px;color:var(--txt-3);margin-top:4px;letter-spacing:.02em}

.hero__visual{position:relative}
.hero-panel{
  position:relative;
  border-radius:var(--r-panel);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08), 0 30px 70px -30px rgba(31,211,181,.28);
  padding:18px;
  transform:rotate(-1deg);
}
.hero-panel__screen{
  border-radius:16px;overflow:hidden;aspect-ratio:16/10;
  border:1px solid var(--line-soft);background:var(--bg-1);
}
.hero-panel__screen img{width:100%;height:100%;object-fit:cover;opacity:.92}
.hero-panel__bar{display:flex;gap:6px;padding:0 4px 12px}
.hero-panel__bar span{width:8px;height:8px;border-radius:50%;background:rgba(150,225,240,.28)}
.hero-panel__bar span:first-child{background:rgba(31,211,181,.7)}
.hero-panel__glow{
  position:absolute;top:-1px;right:-1px;width:130px;height:130px;
  border-top:1px solid rgba(31,211,181,.7);border-right:1px solid rgba(31,211,181,.7);
  border-top-right-radius:var(--r-panel);pointer-events:none;
}
.float-badge{
  position:absolute;
  display:flex;align-items:center;gap:8px;
  padding:10px 16px;border-radius:14px;
  background:rgba(12,33,48,.92);
  border:1px solid var(--line);
  box-shadow:0 18px 40px -18px rgba(0,0,0,.85);
  font-size:13px;font-weight:600;
}
.float-badge--a{left:-22px;top:56px;animation:floaty 6s ease-in-out infinite}
.float-badge--b{right:-16px;bottom:56px;animation:floaty 6s ease-in-out infinite .9s}
.float-badge__dot{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px var(--brand)}
.float-badge--b .float-badge__dot{background:var(--accent);box-shadow:0 0 10px var(--accent)}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}

/* 痛点区 */
.pain-grid{display:grid;grid-template-columns:4fr 8fr;gap:64px;align-items:start}
.pain-list{border-top:1px solid var(--line-soft)}
.pain-item{
  display:grid;grid-template-columns:56px 1fr;gap:20px;
  padding:22px 16px 22px 12px;
  border-bottom:1px solid var(--line-soft);
  transition:background 240ms var(--ease);
}
.pain-item:hover{background:rgba(255,255,255,.03)}
.pain-item__no{
  font-size:15px;font-weight:700;color:var(--accent);
  letter-spacing:.06em;padding-top:3px;
  border-left:2px solid rgba(255,196,107,.5);padding-left:12px;
}
.pain-item__title{font-size:17px;font-weight:600;margin-bottom:6px}
.pain-item__desc{font-size:14.5px;color:var(--txt-2);line-height:1.75}

/* Zigzag 解决方案 */
.zigzag{display:grid;gap:64px}
.zig{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.zig--rev{grid-template-columns:5fr 7fr}
.zig--rev .zig__media{order:2}
.zig--rev .zig__body{order:1}
.zig__media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line-soft);aspect-ratio:16/10;background:var(--bg-2)}
.zig__media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease)}
.zig__media:hover img{transform:scale(1.03)}
.zig__body h3{margin:16px 0 12px}
.zig__body p{font-size:15.5px;color:var(--txt-2);line-height:1.85;margin-bottom:16px}

/* 成果数据带 */
.stat-band{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-radius:var(--r-panel);
  border:1px solid var(--line-soft);
  background:linear-gradient(180deg, rgba(12,33,48,.85), rgba(8,24,35,.6));
  overflow:hidden;
}
.stat{padding:36px 28px;border-left:1px solid var(--line-soft)}
.stat:first-child{border-left:0}
.stat__num{font-size:40px;font-weight:700;line-height:1.1;color:var(--brand);letter-spacing:-.02em}
.stat__num--amber{color:var(--accent)}
.stat__label{font-size:13.5px;color:var(--txt-3);margin-top:8px}

.case-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;margin-top:32px}
.case-card{
  display:grid;grid-template-columns:1fr 1fr;
  min-height:240px;border-radius:var(--r-card);overflow:hidden;
  background:var(--bg-2);border:1px solid var(--line-soft);
  transition:border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
.case-card:hover{border-color:rgba(31,211,181,.4);box-shadow:var(--shadow-glow)}
.case-card--flip .case-card__media{order:2}
.case-card--flip .case-card__body{order:1}
.case-card__media{position:relative;overflow:hidden}
.case-card__media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease)}
.case-card:hover .case-card__media img{transform:scale(1.04)}
.case-card__body{padding:30px 28px;display:flex;flex-direction:column;justify-content:center;gap:14px}
.case-card__quote{font-size:17px;font-weight:600;line-height:1.65}

/* 证言 */
.voice-grid{display:grid;grid-template-columns:5fr 4fr;gap:24px;align-items:stretch}
.voice-main{
  position:relative;padding:40px 38px;
  border-radius:var(--r-panel);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(18px);box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  display:flex;flex-direction:column;gap:22px;
}
.voice-main::before{content:"";position:absolute;left:0;top:0;height:2px;width:60%;background:linear-gradient(90deg,var(--brand),transparent)}
.voice-quote-mark{font-size:64px;font-weight:700;line-height:.7;color:rgba(31,211,181,.32);font-family:Georgia,serif}
.voice-main p{font-size:16.5px;line-height:1.9;color:var(--txt)}
.voice-person{display:flex;align-items:center;gap:14px;margin-top:auto}
.voice-avatar{width:46px;height:46px;border-radius:50%;overflow:hidden;border:1px solid var(--line);flex-shrink:0}
.voice-avatar img{width:100%;height:100%;object-fit:cover}
.voice-name{font-size:15px;font-weight:600}
.voice-role{font-size:13px;color:var(--txt-3)}
.voice-side{display:grid;gap:24px}
.voice-card{
  position:relative;padding:26px 24px;border-radius:var(--r-card);
  background:var(--bg-2);border:1px solid var(--line-soft);
  display:flex;flex-direction:column;gap:12px;
  transition:transform 240ms var(--ease),border-color 240ms var(--ease);
}
.voice-card::before{content:"";position:absolute;left:24px;right:24px;top:0;height:2px;background:linear-gradient(90deg,rgba(31,211,181,.7),transparent)}
.voice-card:hover{transform:translateY(-4px);border-color:rgba(31,211,181,.4)}
.voice-card p{font-size:14.5px;color:var(--txt-2);line-height:1.8}
.voice-meta{font-size:13px;color:var(--txt-3);display:flex;align-items:center;justify-content:space-between}
.score{color:var(--accent);font-weight:600;letter-spacing:.06em}

/* CMS 列表 */
.cms-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card-cms{
  display:flex;flex-direction:column;
  border-radius:var(--r-card);overflow:hidden;
  background:var(--bg-2);border:1px solid var(--line-soft);
  transition:transform 240ms var(--ease),border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
.card-cms:hover{transform:translateY(-4px);border-color:rgba(31,211,181,.4);box-shadow:var(--shadow-glow)}
.card-cms__cover{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--bg-1)}
.card-cms__cover img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease)}
.card-cms:hover .card-cms__cover img{transform:scale(1.04)}
.card-cms__body{padding:22px 22px 20px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-cms__title{font-size:17px;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-cms__title a:hover{color:var(--brand)}
.card-cms__desc{font-size:14px;color:var(--txt-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-cms__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:14px;border-top:1px solid var(--line-soft);font-size:12.5px;color:var(--txt-3)}
.card-cms__foot a{color:var(--brand-2);display:inline-flex;align-items:center;gap:4px;transition:color 240ms var(--ease)}
.card-cms__foot a:hover{color:var(--brand)}
.empty-state{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:56px 24px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);text-align:center;
}
.empty-state svg{color:var(--txt-3)}
.empty-state p{font-size:15px;color:var(--txt-2)}
.pager{display:flex;justify-content:center;gap:10px;margin-top:44px}
.pager a,.pager span{
  width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:13.5px;border:1px solid var(--line);background:var(--glass);color:var(--txt-2);
  transition:all 240ms var(--ease);
}
.pager a:hover{border-color:rgba(31,211,181,.5);color:var(--brand)}
.pager .is-current{background:var(--brand);color:var(--bg-0);border-color:var(--brand);font-weight:700}
.pager .is-disabled{opacity:.4;pointer-events:none}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:64px;align-items:start}
.faq-list{border-radius:var(--r-panel);overflow:hidden;border:1px solid var(--line-soft);background:rgba(255,255,255,.02)}
.faq-item{border-bottom:1px solid var(--line-soft)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--txt);
  transition:background 240ms var(--ease);
}
.faq-q:hover{background:rgba(255,255,255,.03)}
.faq-q__icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--txt-2);
  transition:transform 300ms var(--ease),color 240ms var(--ease),border-color 240ms var(--ease);
}
.faq-item.is-open .faq-q__icon{transform:rotate(45deg);color:var(--brand);border-color:rgba(31,211,181,.5)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 320ms var(--ease)}
.faq-a p{padding:0 24px 22px;font-size:15.5px;color:var(--txt-2);line-height:1.8;margin-top:-4px}
.faq-item.is-open .faq-a{max-height:340px}

/* CTA 带 */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-panel);
  padding:60px 56px;
  background:linear-gradient(120deg, var(--bg-2) 0%, rgba(31,211,181,.10) 100%);
  border:1px solid var(--line);
}
.cta-band::before{
  content:"";position:absolute;top:-120px;right:-60px;width:420px;height:420px;
  background:radial-gradient(circle, rgba(31,211,181,.22), transparent 68%);
}
.cta-band::after{
  content:"";position:absolute;left:-10%;bottom:-40%;width:120%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,211,181,.6),transparent);
  transform:rotate(-6deg);
}
.cta-band__inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-band__text{max-width:640px}
.cta-band__text p{color:var(--txt-2);margin-top:14px;font-size:16px}
.cta-band__actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}

/* 页脚 */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line-soft);position:relative;margin-top:0}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,211,181,.7),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:48px;padding:72px 0 52px}
.footer-brand p{font-size:14px;color:var(--txt-2);margin-top:16px;line-height:1.8;max-width:30ch}
.social-row{display:flex;gap:10px;margin-top:22px}
.social-row a{width:36px;height:36px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:var(--glass);border:1px solid var(--line);color:var(--txt-2);transition:all 240ms var(--ease)}
.social-row a:hover{color:var(--brand);border-color:rgba(31,211,181,.45);transform:translateY(-2px)}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:18px;color:var(--txt)}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:var(--txt-2);transition:color 240ms var(--ease)}
.footer-col a:hover{color:var(--brand)}
.footer-contact li{font-size:14px;color:var(--txt-2);display:flex;gap:10px;align-items:flex-start}
.footer-contact li span:first-child{color:var(--txt-3);flex-shrink:0}
.subscribe{margin-top:20px;display:flex;align-items:center;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-input);overflow:hidden;transition:border-color 240ms var(--ease),box-shadow 240ms var(--ease)}
.subscribe:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(31,211,181,.14)}
.subscribe input{flex:1;background:transparent;border:0;outline:none;padding:12px 14px;font-size:14px;min-width:0}
.subscribe input::placeholder{color:var(--txt-3)}
.subscribe button{padding:12px 18px;font-size:14px;font-weight:600;color:var(--bg-0);background:linear-gradient(135deg,var(--brand),var(--brand-deep));transition:filter 240ms var(--ease)}
.subscribe button:hover{filter:brightness(1.08)}
.footer-bottom{border-top:1px solid var(--line-soft);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:var(--txt-3)}
.footer-bottom a{color:var(--txt-3)}
.footer-bottom a:hover{color:var(--brand)}

/* 移动端抽屉 */
.drawer{position:fixed;inset:0;z-index:90;background:rgba(6,18,25,.96);backdrop-filter:blur(16px);display:none;flex-direction:column;padding:24px 20px 0}
.drawer.is-open{display:flex}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:36px}
.drawer__nav{display:grid;gap:6px}
.drawer__nav a{font-size:20px;font-weight:600;color:var(--txt-2);padding:14px 4px;border-bottom:1px solid var(--line-soft);transition:color 240ms var(--ease)}
.drawer__nav a.is-active{color:var(--brand)}
.drawer__foot{margin-top:auto;padding:24px 0}

/* 通用小对象 */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.divider{height:1px;background:linear-gradient(90deg,transparent,rgba(150,225,240,.22),transparent)}

/* 响应式 */
@media (max-width:1024px){
  .sec{padding:84px 0}
  .hero{padding:72px 0 80px}
  .hero__grid{grid-template-columns:1fr;gap:48px}
  .pain-grid,.faq-grid{grid-template-columns:1fr;gap:36px}
  .zig,.zig--rev{grid-template-columns:1fr;gap:28px}
  .zig--rev .zig__media{order:0}
  .zig--rev .zig__body{order:0}
  .stat-band{grid-template-columns:repeat(2,1fr)}
  .stat{border-left:1px solid var(--line-soft)}
  .stat:nth-child(odd){border-left:0}
  .stat:nth-child(n+3){border-top:1px solid var(--line-soft)}
  .case-grid{grid-template-columns:1fr}
  .voice-grid{grid-template-columns:1fr}
  .cms-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;padding:56px 0 40px}
  .navmenu{display:none}
  .burger{display:flex}
  .cta-band{padding:44px 32px}
}
@media (max-width:768px){
  .wrap{padding:0 20px}
  .topbar__tip,.topbar__right a:not(:first-child),.topbar__sep{display:none}
  .topbar__right{gap:0}
  .hero-panel{transform:none}
  .float-badge--a{left:-6px;top:24px}
  .float-badge--b{right:-6px;bottom:24px}
  .hero__metrics{gap:20px 0}
  .metric{padding:0 18px}
  .stat-band{grid-template-columns:1fr}
  .stat{border-left:0;border-top:1px solid var(--line-soft);padding:28px 22px}
  .stat:first-child{border-top:0}
  .case-card{grid-template-columns:1fr}
  .case-card--flip .case-card__media{order:0}
  .case-card--flip .case-card__body{order:0}
  .case-card__media{aspect-ratio:16/9}
  .cms-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px}
  .cta-band__inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  body{font-size:15.5px}
  .hero{padding:56px 0 64px}
  .hero__cta{flex-direction:column;align-items:stretch}
  .hero__cta .btn{width:100%}
  .metric{padding:0 14px}
  .metric__num{font-size:24px}
  .stat__num{font-size:34px}
  .voice-main{padding:28px 22px}
  .faq-q{font-size:15.5px;padding:18px 18px}
  .faq-a p{padding:0 18px 18px}
  .cta-band{padding:32px 22px;border-radius:20px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

/* roulang page: category1 */
:root{
    --bg-0:#061219;
    --bg-1:#081823;
    --bg-2:#0C2130;
    --glass:rgba(255,255,255,.045);
    --line:rgba(150,225,240,.14);
    --line-soft:rgba(150,225,240,.08);
    --brand:#1FD3B5;
    --brand-deep:#14A38F;
    --brand-2:#4FA8FF;
    --accent:#FFC46B;
    --txt:#EAF6F8;
    --txt-2:#9FB6BF;
    --txt-3:#6C8590;
    --ok:#2FD6A8;
    --warn:#FFB65C;
    --err:#FF7B72;
    --r-card:20px;
    --r-panel:24px;
    --r-btn:14px;
    --r-input:12px;
    --ease:cubic-bezier(.22,.61,.36,1);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--bg-0);
    color:var(--txt);
    font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    letter-spacing:0;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
  input,select,textarea{font:inherit;color:inherit;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
  .num{font-variant-numeric:tabular-nums;}

  .wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}
  @media (min-width:768px){ .wrap{padding:0 32px;} }

  /* ---------- 顶部信息条 ---------- */
  .site-header{
    position:sticky;top:0;z-index:70;
    background:rgba(6,18,25,.74);
    backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line-soft);
    transition:background 240ms var(--ease),border-color 240ms var(--ease),backdrop-filter 240ms var(--ease);
  }
  .site-header.is-scrolled{
    background:rgba(6,18,25,.92);
    backdrop-filter:blur(22px);
    border-bottom-color:var(--line);
  }
  .topbar{
    height:36px;
    background:var(--bg-1);
    border-bottom:1px solid var(--line-soft);
    font-size:12.5px;
    color:var(--txt-3);
  }
  .topbar__inner{height:36px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
  .topbar__left{display:flex;align-items:center;gap:10px;white-space:nowrap;overflow:hidden;}
  .topbar__dot{width:6px;height:6px;border-radius:999px;background:var(--brand);box-shadow:0 0 10px var(--brand);flex:none;}
  .topbar__domain{color:var(--txt-2);letter-spacing:.02em;}
  .topbar__tip{color:var(--txt-3);}
  .topbar__right{display:flex;align-items:center;gap:12px;flex:none;}
  .topbar__right a{transition:color 200ms var(--ease);}
  .topbar__right a:hover{color:var(--brand);}
  .topbar__sep{width:1px;height:12px;background:var(--line);display:inline-block;}
  @media (max-width:767px){
    .topbar__tip,.topbar__right a:nth-child(1),.topbar__sep:nth-of-type(1){display:none;}
  }

  /* ---------- 主导航 ---------- */
  .navbar{height:68px;}
  .navbar__inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
  .logo{display:inline-flex;align-items:center;gap:10px;flex:none;}
  .logo__mark{width:24px;height:24px;flex:none;}
  .logo__text{display:inline-flex;align-items:baseline;font-weight:700;font-size:19px;letter-spacing:.01em;}
  .logo__text .l1{color:var(--brand);}
  .logo__text .l2{color:var(--txt);margin-left:2px;}

  .navmenu{display:flex;align-items:center;gap:26px;}
  .navmenu a{
    position:relative;
    font-size:15px;
    color:var(--txt-2);
    padding:6px 0;
    transition:color 220ms var(--ease);
    white-space:nowrap;
  }
  .navmenu a::after{
    content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
    background:var(--brand);transform:scaleX(0);transform-origin:center;
    transition:transform 260ms var(--ease);
  }
  .navmenu a:hover{color:var(--txt);}
  .navmenu a:hover::after{transform:scaleX(1);}
  .navmenu a.is-active{color:var(--txt);font-weight:600;}
  .navmenu a.is-active::after{transform:scaleX(1);}

  .nav-actions{display:flex;align-items:center;gap:10px;flex:none;}
  .icon-btn{
    width:40px;height:40px;border-radius:12px;
    display:inline-flex;align-items:center;justify-content:center;
    background:var(--glass);border:1px solid var(--line);color:var(--txt-2);
    backdrop-filter:blur(14px);
    transition:color 220ms var(--ease),border-color 220ms var(--ease),transform 220ms var(--ease),background 220ms var(--ease);
  }
  .icon-btn:hover{color:var(--brand);border-color:rgba(31,211,181,.45);transform:translateY(-2px);}
  .burger{display:inline-flex;}
  @media (min-width:1024px){ .burger{display:none;} }
  @media (max-width:1023px){ .navmenu{display:none;} }

  /* 移动抽屉 */
  .drawer{
    position:fixed;inset:0;z-index:90;
    background:rgba(6,18,25,.96);
    backdrop-filter:blur(20px);
    padding:88px 24px 32px;
    display:flex;flex-direction:column;gap:6px;
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity 240ms var(--ease),transform 240ms var(--ease);
  }
  .drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
  .drawer a{
    font-size:20px;font-weight:600;color:var(--txt);
    padding:14px 0;border-bottom:1px solid var(--line-soft);
    min-height:44px;display:flex;align-items:center;
  }
  .drawer a.is-active{color:var(--brand);}
  .drawer__close{
    position:absolute;top:24px;right:24px;
    width:40px;height:40px;border-radius:12px;
    background:var(--glass);border:1px solid var(--line);color:var(--txt-2);
    display:flex;align-items:center;justify-content:center;
  }
  .drawer__cta{margin-top:auto;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 22px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
    transition:transform 240ms var(--ease),box-shadow 240ms var(--ease),background 240ms var(--ease),color 240ms var(--ease),border-color 240ms var(--ease),filter 240ms var(--ease);
  }
  .btn:disabled{opacity:.4;box-shadow:none;cursor:not-allowed;transform:none;}
  .btn-glow{
    background:linear-gradient(135deg,var(--brand),var(--brand-deep));
    color:var(--bg-0);
    box-shadow:0 8px 30px -6px rgba(31,211,181,.55);
  }
  .btn-glow:hover{filter:brightness(1.08);box-shadow:0 12px 38px -6px rgba(31,211,181,.72);transform:translateY(-2px);}
  .btn-glow:active{transform:translateY(0);filter:brightness(.96);}
  .btn-ghost{
    background:var(--glass);border:1px solid var(--line);color:var(--brand);
    backdrop-filter:blur(14px);
  }
  .btn-ghost:hover{background:rgba(31,211,181,.08);border-color:rgba(31,211,181,.5);transform:translateY(-2px);}
  .btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand-2);font-size:14.5px;font-weight:600;height:44px;transition:color 220ms var(--ease);}
  .btn-text svg{transition:transform 240ms var(--ease);}
  .btn-text:hover{color:var(--brand);}
  .btn-text:hover svg{transform:translateX(3px);}

  /* ---------- 通用组件 ---------- */
  .glass-panel{
    position:relative;
    background:var(--glass);
    border:1px solid var(--line);
    border-radius:var(--r-panel);
    backdrop-filter:blur(18px);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  }
  .content-card{
    background:var(--bg-2);
    border:1px solid var(--line-soft);
    border-radius:var(--r-card);
    transition:border-color 240ms var(--ease),transform 240ms var(--ease),box-shadow 240ms var(--ease);
  }
  .content-card:hover{
    border-color:rgba(31,211,181,.4);
    transform:translateY(-4px);
    box-shadow:0 20px 50px -20px rgba(31,211,181,.35);
  }
  .tag-pill{
    display:inline-flex;align-items:center;
    padding:4px 12px;border-radius:999px;
    font-size:11.5px;font-weight:500;letter-spacing:.04em;line-height:1.7;
    border:1px solid rgba(79,168,255,.35);
    background:rgba(79,168,255,.08);
    color:#9FD2FF;
  }
  .tag-pill--amber{
    border-color:rgba(255,196,107,.42);
    background:rgba(255,196,107,.09);
    color:var(--accent);
  }
  .tag-pill--brand{
    border-color:rgba(31,211,181,.42);
    background:rgba(31,211,181,.09);
    color:var(--brand);
  }
  .sec-divider{height:1px;background:linear-gradient(90deg,transparent,rgba(150,225,240,.14),transparent);}
  .h2-line{
    position:relative;padding-left:16px;
    font-size:clamp(24px,2.8vw,34px);font-weight:700;line-height:1.3;letter-spacing:-.01em;
  }
  .h2-line::before{
    content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;border-radius:3px;
    background:linear-gradient(180deg,var(--brand),rgba(31,211,181,.15));
  }
  .lead{color:var(--txt-2);font-size:15.5px;}

  /* ---------- 面包屑 ---------- */
  .crumb{padding:22px 0 0;font-size:13px;color:var(--txt-3);}
  .crumb a{transition:color 200ms var(--ease);}
  .crumb a:hover{color:var(--brand);}
  .crumb span.sep{margin:0 8px;color:rgba(150,225,240,.4);}
  .crumb .cur{color:var(--txt);}

  /* ---------- Hero ---------- */
  .hero{position:relative;padding:52px 0 72px;overflow:hidden;}
  .hero__glow{
    position:absolute;top:-220px;left:-160px;width:760px;height:760px;
    background:radial-gradient(circle,rgba(31,211,181,.18),transparent 62%);
    pointer-events:none;
  }
  .hero__glow2{
    position:absolute;right:-200px;bottom:-260px;width:620px;height:620px;
    background:radial-gradient(circle,rgba(79,168,255,.14),transparent 64%);
    pointer-events:none;
  }
  .hero__grid{
    position:absolute;inset:0;
    background-image:linear-gradient(rgba(150,225,240,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(150,225,240,.06) 1px,transparent 1px);
    background-size:40px 40px;
    mask-image:radial-gradient(circle at 30% 30%,#000 0%,transparent 72%);
    -webkit-mask-image:radial-gradient(circle at 30% 30%,#000 0%,transparent 72%);
    pointer-events:none;
  }
  .hero h1{
    font-size:clamp(30px,4.4vw,52px);
    font-weight:700;line-height:1.22;letter-spacing:-.01em;
    margin:18px 0 18px;
  }
  .hero h1 em{color:var(--brand);font-style:normal;}
  .hero__sub{color:var(--txt-2);font-size:16px;max-width:560px;}

  .stat-card{padding:26px 24px;}
  .stat-card__head{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    padding-bottom:18px;border-bottom:1px solid var(--line-soft);
  }
  .stat-card__title{font-size:14px;font-weight:600;color:var(--txt);}
  .live{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;color:var(--brand);}
  .live i{width:6px;height:6px;border-radius:999px;background:var(--brand);box-shadow:0 0 8px var(--brand);display:inline-block;animation:pulse 2.4s infinite;}
  @keyframes pulse{0%,100%{opacity:1;}50%{opacity:.35;}}
  .stat-row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:16px 0;border-bottom:1px solid var(--line-soft);}
  .stat-row:last-of-type{border-bottom:0;}
  .stat-row__label{font-size:13.5px;color:var(--txt-2);}
  .stat-row__value{font-size:28px;font-weight:700;color:var(--accent);letter-spacing:-.01em;}
  .stat-row__value small{font-size:13px;font-weight:500;color:var(--txt-2);margin-left:4px;}
  .stat-card__foot{padding-top:14px;font-size:12.5px;color:var(--txt-3);}

  /* ---------- 能力块 ---------- */
  .ability{
    position:relative;
    padding:26px 24px 24px 28px;
  }
  .ability::before{
    content:"";position:absolute;left:0;top:26px;bottom:26px;width:2px;border-radius:2px;
    background:linear-gradient(180deg,var(--brand),rgba(31,211,181,.08));
  }
  .ability__idx{font-size:14px;font-weight:700;letter-spacing:.08em;color:var(--accent);}
  .ability h3{font-size:20px;font-weight:600;margin:8px 0 10px;}
  .ability p{color:var(--txt-2);font-size:15px;max-width:520px;}
  .ability__tags{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 10px;}

  .preview-card{padding:14px;overflow:hidden;}
  .preview-card img{border-radius:14px;aspect-ratio:16/9;object-fit:cover;width:100%;transition:transform 320ms var(--ease);}
  .preview-card:hover img{transform:scale(1.03);}

  /* ---------- 对比区 ---------- */
  .compare{padding:30px 26px;}
  .compare__col{padding:8px 4px;}
  .compare__head{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:600;margin-bottom:14px;}
  .dot{width:9px;height:9px;border-radius:999px;flex:none;display:inline-block;}
  .dot--err{background:var(--err);box-shadow:0 0 10px rgba(255,123,114,.6);}
  .dot--ok{background:var(--brand);box-shadow:0 0 10px rgba(31,211,181,.6);}
  .compare__list li{
    position:relative;padding:12px 0 12px 18px;font-size:14.5px;color:var(--txt-2);
    border-top:1px solid var(--line-soft);
  }
  .compare__list li:first-child{border-top:0;}
  .compare__list li::before{
    content:"";position:absolute;left:0;top:22px;width:5px;height:5px;border-radius:2px;
    background:var(--txt-3);
  }
  .compare__list--ok li::before{background:var(--brand);}
  .compare__list--ok li{color:var(--txt);}

  /* ---------- FAQ ---------- */
  .faq-item{
    background:var(--glass);
    border:1px solid var(--line-soft);
    border-radius:var(--r-card);
    margin-bottom:12px;
    overflow:hidden;
    transition:border-color 240ms var(--ease),background 240ms var(--ease);
  }
  .faq-item:hover{border-color:var(--line);}
  .faq-item.is-open{border-color:rgba(31,211,181,.4);background:rgba(31,211,181,.045);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
    text-align:left;padding:20px 22px;font-size:17px;font-weight:600;line-height:1.6;
    min-height:44px;
  }
  .faq-q .plus{
    flex:none;width:24px;height:24px;border-radius:999px;
    display:inline-flex;align-items:center;justify-content:center;
    color:var(--txt-2);border:1px solid var(--line);
    transition:transform 240ms var(--ease),color 240ms var(--ease),border-color 240ms var(--ease);
  }
  .faq-item.is-open .plus{transform:rotate(45deg);color:var(--brand);border-color:rgba(31,211,181,.5);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height 300ms var(--ease);}
  .faq-a p{padding:0 22px 22px;font-size:15.5px;line-height:1.8;color:var(--txt-2);}

  /* ---------- CTA ---------- */
  .cta-panel{
    position:relative;overflow:hidden;
    border-radius:var(--r-panel);
    border:1px solid var(--line);
    background:linear-gradient(135deg,rgba(12,33,48,.96),rgba(31,211,181,.1));
    padding:44px 32px;
    box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  }
  .cta-panel::after{
    content:"";position:absolute;top:-60%;left:-10%;width:60%;height:220%;
    background:linear-gradient(90deg,transparent,rgba(255,255,255,.09),transparent);
    transform:rotate(18deg);pointer-events:none;
  }

  /* ---------- 页脚 ---------- */
  .site-footer{
    margin-top:88px;
    background:var(--bg-1);
    border-top:1px solid var(--line-soft);
    position:relative;
  }
  .site-footer::before{
    content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
    background:linear-gradient(90deg,transparent,rgba(31,211,181,.7),transparent);
  }
  .footer-grid{
    display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:36px;
    padding:56px 0 40px;
  }
  .footer-brand p{color:var(--txt-2);font-size:14px;margin:14px 0 18px;max-width:320px;}
  .social-row{display:flex;gap:10px;}
  .social-row a{
    width:34px;height:34px;border-radius:10px;
    background:var(--glass);border:1px solid var(--line);
    display:inline-flex;align-items:center;justify-content:center;
    color:var(--txt-2);
    transition:color 220ms var(--ease),border-color 220ms var(--ease),transform 220ms var(--ease);
  }
  .social-row a:hover{color:var(--brand);border-color:rgba(31,211,181,.45);transform:translateY(-2px);}
  .footer-col h4{font-size:14px;font-weight:600;color:var(--txt);margin-bottom:14px;}
  .footer-col ul li{margin-bottom:10px;}
  .footer-col ul li a{font-size:14px;color:var(--txt-2);transition:color 200ms var(--ease);}
  .footer-col ul li a:hover{color:var(--brand);}
  .footer-contact li{display:flex;gap:10px;font-size:13.5px;color:var(--txt-2);margin-bottom:8px;}
  .footer-contact li span:first-child{color:var(--txt-3);flex:none;width:36px;}
  .subscribe{display:flex;margin-top:16px;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-input);overflow:hidden;transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease);}
  .subscribe:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(31,211,181,.14);}
  .subscribe input{
    flex:1;min-width:0;border:0;background:transparent;padding:12px 14px;font-size:14px;color:var(--txt);
  }
  .subscribe input::placeholder{color:var(--txt-3);}
  .subscribe button{
    padding:0 18px;background:linear-gradient(135deg,var(--brand),var(--brand-deep));
    color:var(--bg-0);font-weight:600;font-size:14px;
    transition:filter 220ms var(--ease);
  }
  .subscribe button:hover{filter:brightness(1.08);}
  .footer-bottom{
    border-top:1px solid var(--line-soft);
    padding:18px 0 26px;
    display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
    font-size:12.5px;color:var(--txt-3);
  }
  .footer-bottom a{transition:color 200ms var(--ease);}
  .footer-bottom a:hover{color:var(--brand);}

  @media (max-width:1023px){
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  }
  @media (max-width:639px){
    .footer-grid{grid-template-columns:1fr;gap:26px;padding:44px 0 30px;}
    .hero{padding:36px 0 56px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  }

/* roulang page: article */
:root{
    --bg-0:#061219;
    --bg-1:#081823;
    --bg-2:#0C2130;
    --glass:rgba(255,255,255,.045);
    --line:rgba(150,225,240,.14);
    --line-soft:rgba(150,225,240,.08);
    --brand:#1FD3B5;
    --brand-deep:#14A38F;
    --brand-2:#4FA8FF;
    --accent:#FFC46B;
    --t1:#EAF6F8;
    --t2:#9FB6BF;
    --t3:#6C8590;
    --ok:#2FD6A8;
    --warn:#FFB65C;
    --err:#FF7B72;
    --r-card:20px;
    --r-panel:24px;
    --r-btn:14px;
    --r-input:12px;
    --ease:cubic-bezier(.22,.61,.36,1);
  }

  *,*::before,*::after{ box-sizing:border-box; }

  html{ scroll-behavior:smooth; }

  body{
    margin:0;
    background:var(--bg-0);
    color:var(--t1);
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    letter-spacing:0;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }

  body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:0;
    background-image:radial-gradient(circle at 12% 8%, rgba(31,211,181,.16), transparent 46%),
                     linear-gradient(rgba(150,225,240,.045) 1px, transparent 1px),
                     linear-gradient(90deg, rgba(150,225,240,.045) 1px, transparent 1px);
    background-size:auto, 40px 40px, 40px 40px;
    opacity:1;
  }

  img{ max-width:100%; display:block; }
  a{ color:inherit; text-decoration:none; }
  button{ font-family:inherit; cursor:pointer; }
  ul,ol{ margin:0; padding:0; list-style:none; }
  input,textarea,select{ font-family:inherit; }
  h1,h2,h3,h4,p{ margin:0; }

  .wrap{
    width:100%;
    max-width:1180px;
    margin:0 auto;
    padding-left:20px;
    padding-right:20px;
    position:relative;
    z-index:1;
  }

  a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
    outline:2px solid var(--brand);
    outline-offset:2px;
    border-radius:6px;
  }

  /* ============ 顶部信息条 ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(6,18,25,.72);
    transition:background 240ms var(--ease), box-shadow 240ms var(--ease);
  }
  .site-header.is-scrolled{
    background:rgba(6,18,25,.88);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    box-shadow:0 1px 0 rgba(150,225,240,.1);
  }

  .topbar{
    height:36px;
    background:var(--bg-1);
    border-bottom:1px solid var(--line-soft);
    font-size:12.5px;
    color:var(--t2);
  }
  .topbar__inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    height:36px;
    gap:16px;
  }
  .topbar__left{ display:flex; align-items:center; gap:10px; min-width:0; }
  .topbar__dot{
    width:6px;height:6px;border-radius:50%;
    background:var(--brand);
    box-shadow:0 0 10px rgba(31,211,181,.9);
    flex:none;
  }
  .topbar__domain{ color:var(--t1); letter-spacing:.02em; white-space:nowrap; }
  .topbar__tip{
    padding-left:10px;
    border-left:1px solid var(--line);
    color:var(--t3);
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
  }
  .topbar__right{ display:flex; align-items:center; gap:12px; flex:none; }
  .topbar__right a{ color:var(--t2); transition:color 240ms var(--ease); }
  .topbar__right a:hover{ color:var(--brand); }
  .topbar__sep{ width:1px; height:12px; background:var(--line); }

  /* ============ 主导航 ============ */
  .navbar__inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    height:68px;
  }
  .logo{
    display:inline-flex;
    align-items:center;
    gap:10px;
    flex:none;
  }
  .logo__mark{ width:24px; height:24px; }
  .logo__text{
    display:inline-flex;
    align-items:baseline;
    gap:1px;
    font-size:19px;
    font-weight:700;
    letter-spacing:-.01em;
    line-height:1;
  }
  .logo__text .l2{ color:var(--brand); }

  .navmenu{ display:none; }
  .navmenu a{
    position:relative;
    display:inline-block;
    padding:6px 2px;
    font-size:14.5px;
    color:var(--t2);
    transition:color 240ms var(--ease);
  }
  .navmenu a::after{
    content:"";
    position:absolute;
    left:50%;
    right:50%;
    bottom:0;
    height:2px;
    border-radius:2px;
    background:var(--brand);
    transition:left 240ms var(--ease), right 240ms var(--ease);
  }
  .navmenu a:hover{ color:var(--t1); }
  .navmenu a:hover::after{ left:0; right:0; }
  .navmenu a.is-active{ color:var(--t1); }
  .navmenu a.is-active::after{ left:0; right:0; }

  .nav-actions{ display:flex; align-items:center; gap:10px; }
  .icon-btn{
    width:40px;height:40px;
    display:inline-flex;align-items:center;justify-content:center;
    border-radius:12px;
    border:1px solid var(--line);
    background:var(--glass);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    color:var(--t2);
    transition:all 240ms var(--ease);
  }
  .icon-btn:hover{ color:var(--brand); border-color:rgba(31,211,181,.42); transform:translateY(-1px); }
  .burger{ display:inline-flex; }

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:44px;
    padding:0 22px;
    border-radius:var(--r-btn);
    font-size:14.5px;
    font-weight:600;
    border:1px solid transparent;
    transition:all 240ms var(--ease);
    white-space:nowrap;
  }
  .btn-glow{
    background:linear-gradient(135deg,var(--brand),var(--brand-deep));
    color:var(--bg-0);
    box-shadow:0 8px 30px -6px rgba(31,211,181,.55);
  }
  .btn-glow:hover{
    filter:brightness(1.08);
    transform:translateY(-2px);
    box-shadow:0 14px 36px -6px rgba(31,211,181,.72);
  }
  .btn-glow:active{ transform:translateY(0); background:var(--brand-deep); }
  .btn-glass{
    background:var(--glass);
    border-color:var(--line);
    color:var(--brand);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
  }
  .btn-glass:hover{ background:rgba(31,211,181,.08); border-color:rgba(31,211,181,.45); }
  .btn[disabled],.btn:disabled{ opacity:.4; box-shadow:none; cursor:not-allowed; }
  .btn-text{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--brand-2);
    font-size:14px;
    font-weight:600;
    transition:color 240ms var(--ease);
  }
  .btn-text::after{ content:"→"; transition:transform 240ms var(--ease); }
  .btn-text:hover{ color:var(--brand); }
  .btn-text:hover::after{ transform:translateX(3px); }

  /* ============ 面包屑 ============ */
  .breadcrumb{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:8px;
    font-size:13px;
    color:var(--t3);
    padding-top:28px;
  }
  .breadcrumb a{ color:var(--t2); transition:color 240ms var(--ease); }
  .breadcrumb a:hover{ color:var(--brand); }
  .breadcrumb .sep{ opacity:.45; }
  .breadcrumb .current{ color:var(--t1); }

  /* ============ 文章头部 ============ */
  .article-head{ padding:22px 0 0; }
  .badge-cat{
    display:inline-flex;
    align-items:center;
    gap:6px;
    height:26px;
    padding:0 12px;
    border-radius:999px;
    font-size:11.5px;
    letter-spacing:.04em;
    color:var(--accent);
    border:1px solid rgba(255,196,107,.42);
    background:rgba(255,196,107,.08);
  }
  .badge-cat--blue{
    color:var(--brand-2);
    border-color:rgba(79,168,255,.4);
    background:rgba(79,168,255,.08);
  }
  .article-title{
    margin-top:18px;
    font-size:clamp(26px,3.4vw,40px);
    font-weight:700;
    line-height:1.3;
    letter-spacing:-.01em;
    max-width:860px;
  }
  .article-meta{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:10px;
    margin-top:18px;
    font-size:13px;
    color:var(--t3);
  }
  .article-meta .dot{ opacity:.5; }
  .tag-row{ display:flex; flex-wrap:wrap; gap:8px; margin-top:16px; }
  .tag-pill{
    display:inline-flex;align-items:center;
    height:26px;padding:0 12px;
    border-radius:999px;
    font-size:11.5px;
    letter-spacing:.04em;
    color:var(--brand-2);
    border:1px solid rgba(79,168,255,.34);
    background:rgba(79,168,255,.07);
  }
  .tag-pill--brand{
    color:var(--brand);
    border-color:rgba(31,211,181,.34);
    background:rgba(31,211,181,.07);
  }

  .cover-figure{ margin:30px 0 6px; }
  .cover-figure img{
    width:100%;
    aspect-ratio:16/9;
    object-fit:cover;
    border-radius:var(--r-panel);
    border:1px solid var(--line-soft);
  }

  /* ============ 文章布局 ============ */
  .article-layout{
    display:grid;
    grid-template-columns:1fr;
    gap:36px;
    padding:34px 0 8px;
  }
  .article-body{ max-width:760px; }

  .prose-cn{ font-size:16.5px; line-height:1.9; color:var(--t2); }
  .prose-cn > *:first-child{ margin-top:0; }
  .prose-cn p{ margin:0 0 1.15em; }
  .prose-cn p strong{ color:var(--t1); font-weight:600; }
  .prose-cn h2{
    position:relative;
    margin:40px 0 16px;
    padding-left:14px;
    font-size:24px;
    font-weight:700;
    line-height:1.35;
    color:var(--t1);
  }
  .prose-cn h2::before{
    content:"";
    position:absolute;
    left:0; top:6px; bottom:6px;
    width:3px;
    border-radius:2px;
    background:var(--brand);
  }
  .prose-cn h3{
    margin:28px 0 12px;
    font-size:20px;
    font-weight:600;
    line-height:1.4;
    color:var(--t1);
  }
  .prose-cn h4{
    margin:22px 0 10px;
    font-size:17px;
    font-weight:600;
    color:var(--t1);
  }
  .prose-cn ul,.prose-cn ol{ margin:0 0 1.2em; padding-left:4px; }
  .prose-cn ul li,.prose-cn ol li{
    position:relative;
    padding-left:20px;
    margin-bottom:10px;
    line-height:1.85;
  }
  .prose-cn ul li::before{
    content:"";
    position:absolute;
    left:2px; top:.72em;
    width:7px; height:7px;
    border-radius:2px;
    background:var(--brand);
    opacity:.85;
  }
  .prose-cn ol{ counter-reset:proseCount; }
  .prose-cn ol li{ counter-increment:proseCount; padding-left:30px; }
  .prose-cn ol li::before{
    content:counter(proseCount,decimal-leading-zero);
    position:absolute;
    left:0; top:0;
    font-size:13px;
    font-weight:700;
    color:var(--accent);
    font-variant-numeric:tabular-nums;
  }
  .prose-cn blockquote{
    margin:24px 0;
    padding:20px 22px;
    border-left:3px solid var(--brand);
    border-radius:0 14px 14px 0;
    background:rgba(255,255,255,.06);
    color:var(--t1);
    font-size:16px;
    line-height:1.85;
  }
  .prose-cn blockquote p:last-child{ margin-bottom:0; }
  .prose-cn img{
    width:100%;
    border-radius:16px;
    margin:22px 0 8px;
    border:1px solid var(--line-soft);
  }
  .prose-cn figure{ margin:22px 0; }
  .prose-cn figcaption,
  .prose-cn .fig-cap{
    display:block;
    margin-top:10px;
    text-align:center;
    font-size:12.5px;
    color:var(--t3);
  }
  .prose-cn a{
    color:var(--brand-2);
    text-decoration:underline;
    text-underline-offset:3px;
    text-decoration-thickness:1px;
    transition:color 240ms var(--ease);
  }
  .prose-cn a:hover{ color:var(--brand); }
  .prose-cn table{
    width:100%;
    margin:22px 0;
    border-collapse:separate;
    border-spacing:0;
    border:1px solid var(--line-soft);
    border-radius:16px;
    overflow:hidden;
    background:var(--glass);
    font-size:14.5px;
  }
  .prose-cn thead th{
    background:var(--bg-2);
    color:var(--t1);
    font-weight:600;
    text-align:left;
    padding:12px 16px;
    border-bottom:1px solid var(--line-soft);
  }
  .prose-cn tbody td{
    padding:12px 16px;
    border-bottom:1px solid var(--line-soft);
    color:var(--t2);
  }
  .prose-cn tbody tr:last-child td{ border-bottom:0; }
  .prose-cn code{
    padding:2px 6px;
    border-radius:6px;
    background:rgba(79,168,255,.08);
    color:var(--brand-2);
    font-size:14px;
  }
  .prose-cn hr{
    border:0;
    height:1px;
    margin:34px 0;
    background:linear-gradient(90deg, transparent, rgba(150,225,240,.22), transparent);
  }
  .prose-cn .table-scroll{ overflow-x:auto; }

  /* ============ 侧栏 ============ */
  .article-aside{ display:flex; flex-direction:column; gap:18px; }
  .side-panel{
    background:var(--bg-2);
    border:1px solid var(--line-soft);
    border-radius:var(--r-card);
    padding:20px;
  }
  .side-panel__title{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:14.5px;
    font-weight:600;
    color:var(--t1);
    padding-bottom:12px;
    margin-bottom:12px;
    border-bottom:1px solid var(--line-soft);
  }
  .side-panel__title::before{
    content:"";
    width:3px; height:14px;
    border-radius:2px;
    background:var(--brand);
  }
  .anchor-list li a{
    display:flex;
    align-items:center;
    gap:8px;
    height:38px;
    padding-left:10px;
    font-size:13.5px;
    color:var(--t2);
    border-left:2px solid transparent;
    transition:all 240ms var(--ease);
  }
  .anchor-list li a:hover{
    color:var(--t1);
    background:rgba(255,255,255,.03);
    border-left-color:var(--brand);
  }
  .anchor-list li a.is-current{
    color:var(--brand);
    border-left-color:var(--brand);
    background:rgba(31,211,181,.06);
  }
  .hot-list li + li{ border-top:1px solid var(--line-soft); }
  .hot-list a{
    display:flex;
    gap:10px;
    padding:11px 0;
    font-size:14px;
    color:var(--t2);
    line-height:1.6;
    transition:color 240ms var(--ease);
  }
  .hot-list a:hover{ color:var(--brand); }
  .hot-list .num{
    flex:none;
    font-size:13px;
    font-weight:700;
    color:var(--accent);
    font-variant-numeric:tabular-nums;
  }
  .cta-mini{
    background:linear-gradient(140deg, rgba(31,211,181,.14), rgba(12,33,48,.9) 62%);
    border:1px solid rgba(31,211,181,.24);
    border-radius:var(--r-card);
    padding:22px;
  }
  .cta-mini h4{ font-size:16px; font-weight:600; color:var(--t1); line-height:1.55; }
  .cta-mini p{ margin-top:8px; font-size:13.5px; color:var(--t2); line-height:1.75; }
  .cta-mini .btn{ width:100%; margin-top:16px; height:42px; font-size:14px; }

  /* ============ 相关推荐 ============ */
  .section{ padding:56px 0; border-top:1px solid var(--line-soft); }
  .section-head{ display:flex; align-items:flex-end; justify-content:space-between; gap:20px; flex-wrap:wrap; }
  .section-title{
    position:relative;
    padding-left:14px;
    font-size:clamp(20px,2.4vw,26px);
    font-weight:700;
    line-height:1.35;
    color:var(--t1);
  }
  .section-title::before{
    content:"";
    position:absolute;
    left:0; top:6px; bottom:6px;
    width:3px;
    border-radius:2px;
    background:var(--brand);
  }
  .section-sub{ margin-top:10px; padding-left:14px; font-size:14px; color:var(--t3); }

  .related-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:20px;
    margin-top:28px;
  }
  .card-cms{
    display:flex;
    flex-direction:column;
    background:var(--bg-2);
    border:1px solid var(--line-soft);
    border-radius:var(--r-card);
    overflow:hidden;
    transition:all 240ms var(--ease);
  }
  .card-cms:hover{
    transform:translateY(-4px);
    border-color:rgba(31,211,181,.4);
    box-shadow:0 20px 50px -20px rgba(31,211,181,.35);
  }
  .card-cms__cover{
    position:relative;
    aspect-ratio:16/9;
    overflow:hidden;
    border-radius:12px;
    margin:12px 12px 0;
  }
  .card-cms__cover img{
    width:100%; height:100%;
    object-fit:cover;
    transition:transform 420ms var(--ease);
  }
  .card-cms:hover .card-cms__cover img{ transform:scale(1.03); }
  .card-cms__body{ padding:16px 18px 18px; display:flex; flex-direction:column; flex:1; }
  .card-cms__title{
    margin-top:10px;
    font-size:16.5px;
    font-weight:600;
    color:var(--t1);
    line-height:1.55;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }
  .card-cms__desc{
    margin-top:8px;
    font-size:13.5px;
    color:var(--t2);
    line-height:1.75;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }
  .card-cms__foot{
    display:flex;
    align-items:center;
    justify-content:space-between;
    margin-top:auto;
    padding-top:14px;
    font-size:12.5px;
    color:var(--t3);
  }
  .card-cms__foot .arrow{ color:var(--brand-2); transition:transform 240ms var(--ease); }
  .card-cms:hover .card-cms__foot .arrow{ transform:translateX(4px); color:var(--brand); }

  .empty-card{
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:12px;
    text-align:center;
    padding:44px 24px;
    background:var(--glass);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    height:100%;
  }
  .empty-card svg{ color:var(--brand); }
  .empty-card p{ font-size:15px; color:var(--t2); }

  /* ============ 返回入口 ============ */
  .back-bar{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
    padding:18px 22px;
    background:var(--glass);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
  }
  .back-bar__links{ display:flex; align-items:center; gap:20px; font-size:14px; color:var(--t3); }
  .back-bar__links a{ color:var(--t2); transition:color 240ms var(--ease); }
  .back-bar__links a:hover{ color:var(--brand); }

  /* ============ 页脚 ============ */
  .site-footer{
    position:relative;
    margin-top:40px;
    background:var(--bg-1);
    border-top:1px solid var(--line-soft);
  }
  .site-footer::before{
    content:"";
    position:absolute;
    left:0; right:0; top:0;
    height:1px;
    background:linear-gradient(90deg, transparent, rgba(31,211,181,.55), transparent);
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:32px;
    padding:52px 20px 34px;
  }
  .footer-brand p{
    margin-top:14px;
    font-size:13.5px;
    color:var(--t2);
    line-height:1.85;
    max-width:340px;
  }
  .social-row{ display:flex; gap:10px; margin-top:18px; }
  .social-row a{
    width:34px;height:34px;
    display:inline-flex;align-items:center;justify-content:center;
    border-radius:10px;
    border:1px solid var(--line);
    background:var(--glass);
    color:var(--t2);
    transition:all 240ms var(--ease);
  }
  .social-row a:hover{ color:var(--brand); border-color:rgba(31,211,181,.42); transform:translateY(-2px); }

  .footer-col h4{
    font-size:14px;
    font-weight:600;
    color:var(--t1);
    margin-bottom:16px;
  }
  .footer-col ul li + li{ margin-top:10px; }
  .footer-col ul a{
    font-size:13.5px;
    color:var(--t2);
    transition:color 240ms var(--ease);
  }
  .footer-col ul a:hover{ color:var(--brand); }
  .footer-contact li{
    display:flex;
    gap:10px;
    font-size:13.5px;
    color:var(--t2);
    line-height:1.7;
  }
  .footer-contact li + li{ margin-top:10px; }
  .footer-contact li span:first-child{ color:var(--t3); flex:none; width:38px; }

  .subscribe{
    display:flex;
    align-items:center;
    margin-top:18px;
    background:var(--bg-2);
    border:1px solid var(--line);
    border-radius:var(--r-input);
    overflow:hidden;
    transition:box-shadow 240ms var(--ease), border-color 240ms var(--ease);
  }
  .subscribe:focus-within{
    border-color:var(--brand);
    box-shadow:0 0 0 4px rgba(31,211,181,.14);
  }
  .subscribe input{
    flex:1;
    min-width:0;
    height:42px;
    padding:0 14px;
    background:transparent;
    border:0;
    color:var(--t1);
    font-size:13.5px;
    outline:none;
  }
  .subscribe input::placeholder{ color:var(--t3); }
  .subscribe button{
    height:42px;
    padding:0 18px;
    border:0;
    background:linear-gradient(135deg,var(--brand),var(--brand-deep));
    color:var(--bg-0);
    font-size:13.5px;
    font-weight:600;
    transition:filter 240ms var(--ease);
  }
  .subscribe button:hover{ filter:brightness(1.08); }

  .footer-bottom{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:10px;
    padding:18px 20px 26px;
    border-top:1px solid var(--line-soft);
    font-size:12.5px;
    color:var(--t3);
  }

  /* ============ 移动抽屉 ============ */
  .drawer{
    position:fixed;
    inset:0;
    z-index:90;
    display:flex;
    flex-direction:column;
    padding:20px;
    background:rgba(6,18,25,.96);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    transform:translateY(-100%);
    transition:transform 320ms var(--ease);
    visibility:hidden;
  }
  .drawer.is-open{ transform:translateY(0); visibility:visible; }
  .drawer__head{ display:flex; align-items:center; justify-content:space-between; height:52px; }
  .drawer__nav{ display:flex; flex-direction:column; gap:4px; margin-top:26px; flex:1; }
  .drawer__nav a{
    font-size:20px;
    font-weight:600;
    color:var(--t1);
    padding:14px 4px;
    border-bottom:1px solid var(--line-soft);
    transition:color 240ms var(--ease);
  }
  .drawer__nav a:hover,.drawer__nav a.is-active{ color:var(--brand); }
  .drawer__cta{ width:100%; }
  .sr-only{
    position:absolute;width:1px;height:1px;padding:0;margin:-1px;
    overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
  }

  /* ============ 响应式 ============ */
  @media (max-width:640px){
    body{ font-size:15.5px; }
    .topbar__tip,
    .topbar__sep,
    .topbar__right a:not(:first-child){ display:none; }
    .breadcrumb{ padding-top:20px; }
    .section{ padding:44px 0; }
    .footer-grid{ padding:44px 20px 28px; }
  }

  @media (min-width:768px){
    .wrap{ padding-left:32px; padding-right:32px; }
    .footer-grid{
      grid-template-columns:1.3fr 1fr 1fr 1.4fr;
      gap:28px;
      padding:56px 32px 36px;
    }
    .related-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
    .footer-bottom{ padding:18px 32px 28px; }
  }

  @media (min-width:1024px){
    .navmenu{ display:flex; align-items:center; gap:26px; }
    .burger{ display:none; }
    .article-layout{ grid-template-columns:minmax(0,8fr) minmax(0,4fr); gap:44px; padding-top:40px; }
    .article-aside{ position:sticky; top:108px; align-self:start; }
    .related-grid{ grid-template-columns:repeat(3,minmax(0,1fr)); gap:24px; }
    .section{ padding:72px 0; }
  }

/* roulang page: category2 */
:root{
  --bg-0:#061219; --bg-1:#081823; --bg-2:#0C2130;
  --glass:rgba(255,255,255,.045);
  --line:rgba(150,225,240,.14);
  --line-soft:rgba(150,225,240,.08);
  --brand:#1FD3B5; --brand-deep:#14A38F; --brand-2:#4FA8FF; --accent:#FFC46B;
  --t1:#EAF6F8; --t2:#9FB6BF; --t3:#6C8590; --ink:#061219;
  --ok:#2FD6A8; --warn:#FFB65C; --err:#FF7B72;
  --r-card:20px; --r-panel:24px; --r-btn:14px; --r-field:12px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg-0);color:var(--t1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.85;letter-spacing:0;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
::selection{background:rgba(31,211,181,.32)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-0)}
::-webkit-scrollbar-thumb{background:rgba(150,225,240,.16);border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:rgba(31,211,181,.4)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.wrap{padding:0 32px}}

/* ---------- 顶部信息条 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(6,18,25,.7);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background 240ms var(--ease),border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
.site-header.is-scrolled{
  background:rgba(6,18,25,.94);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border-bottom-color:var(--line-soft);
  box-shadow:0 12px 40px -28px rgba(31,211,181,.5);
}
.topbar{background:var(--bg-1);border-bottom:1px solid var(--line-soft);font-size:12.5px;color:var(--t2)}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px}
.topbar__left{display:flex;align-items:center;gap:10px;min-width:0}
.topbar__dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(31,211,181,.85);flex:none}
.topbar__domain{color:var(--t1);letter-spacing:.02em;white-space:nowrap}
.topbar__tip{color:var(--t3);white-space:nowrap}
.topbar__right{display:flex;align-items:center;gap:12px}
.topbar__right a{color:var(--t2);transition:color 240ms var(--ease);white-space:nowrap}
.topbar__right a:hover{color:var(--brand)}
.topbar__sep{width:1px;height:12px;background:rgba(150,225,240,.2)}
@media (max-width:767px){
  .topbar__tip{display:none}
  .topbar__right a:first-child,.topbar__right .topbar__sep{display:none}
}

/* ---------- 主导航 ---------- */
.navbar__inner{display:flex;align-items:center;gap:20px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo__mark{width:24px;height:24px;flex:none}
.logo__text{display:inline-flex;align-items:baseline;font-size:18px;font-weight:700;letter-spacing:.01em}
.logo__text .l1{background:linear-gradient(120deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.logo__text .l2{color:var(--t1);margin-left:1px}
.navmenu{display:none;align-items:center;gap:4px;margin-left:6px}
@media (min-width:1024px){.navmenu{display:flex}}
.navmenu a{
  position:relative;padding:8px 12px;font-size:14.5px;color:var(--t2);border-radius:10px;
  transition:color 240ms var(--ease);
}
.navmenu a::after{
  content:"";position:absolute;left:50%;bottom:3px;width:0;height:2px;border-radius:2px;
  background:var(--brand);transform:translateX(-50%);transition:width 240ms var(--ease);
}
.navmenu a:hover{color:var(--t1)}
.navmenu a:hover::after{width:calc(100% - 24px)}
.navmenu a.is-active{color:var(--t1)}
.navmenu a.is-active::after{width:calc(100% - 24px);box-shadow:0 0 12px rgba(31,211,181,.75)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;
  border-radius:12px;background:var(--glass);border:1px solid var(--line);color:var(--t2);
  transition:all 240ms var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:rgba(31,211,181,.5);background:rgba(31,211,181,.1)}
.burger{display:inline-flex}
@media (min-width:1024px){.burger{display:none}}

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:14.5px;font-weight:600;white-space:nowrap;
  border:1px solid transparent;transition:all 240ms var(--ease);
}
.btn-glow{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:var(--ink);box-shadow:0 8px 30px -6px rgba(31,211,181,.55);
}
.btn-glow:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 12px 40px -6px rgba(31,211,181,.75)}
.btn-glow:active{transform:translateY(0);filter:brightness(.96)}
.btn-ghost{
  background:var(--glass);border-color:var(--line);color:var(--brand);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
}
.btn-ghost:hover{background:rgba(31,211,181,.1);border-color:rgba(31,211,181,.5)}
.btn:disabled{opacity:.4;box-shadow:none;cursor:not-allowed}
.text-btn{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand-2);
  font-size:14px;font-weight:600;transition:color 240ms var(--ease);
}
.text-btn svg{transition:transform 240ms var(--ease)}
.text-btn:hover{color:var(--brand)}
.text-btn:hover svg{transform:translateX(3px)}

/* ---------- 徽章 / 标签 ---------- */
.tag-pill{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:11.5px;font-weight:500;letter-spacing:.04em;line-height:1;
  border:1px solid rgba(79,168,255,.4);color:var(--brand-2);background:rgba(79,168,255,.08);
}
.tag-pill--amber{border-color:rgba(255,196,107,.45);color:var(--accent);background:rgba(255,196,107,.1)}
.tag-pill--brand{border-color:rgba(31,211,181,.45);color:var(--brand);background:rgba(31,211,181,.1)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t3);flex-wrap:wrap}
.breadcrumb a{color:var(--t3);transition:color 240ms var(--ease)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span.is-current{color:var(--t1)}

/* ---------- 头图 Hero ---------- */
.hero-scene{position:relative;overflow:hidden;border-bottom:1px solid var(--line-soft)}
.hero-scene__media{position:absolute;inset:0}
.hero-scene__media img{width:100%;height:100%;object-fit:cover;opacity:.55}
.hero-scene::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:
    radial-gradient(900px 420px at 10% 0%,rgba(31,211,181,.24),transparent 68%),
    linear-gradient(180deg,rgba(6,18,25,.6),rgba(6,18,25,.88));
}
.hero-scene::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:150px;z-index:2;
  background:linear-gradient(180deg,rgba(6,18,25,0),var(--bg-0));
}
.hero-scene__inner{
  position:relative;z-index:3;display:flex;flex-direction:column;gap:14px;
  min-height:320px;justify-content:flex-end;padding-top:72px;padding-bottom:56px;
}
.hero-scene h1{
  font-size:clamp(28px,4vw,36px);font-weight:700;line-height:1.22;letter-spacing:-.01em;
}
.hero-scene__lead{max-width:640px;color:var(--t2);font-size:15.5px;line-height:1.85}
.hero-scene__actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:6px}
@media (max-width:767px){
  .hero-scene__inner{min-height:240px;padding-top:56px;padding-bottom:40px}
}

/* ---------- 双栏锚点布局 ---------- */
.scene-main{padding:56px 0 64px}
@media (min-width:1024px){.scene-main{padding:88px 0 96px}}
.anchor-layout{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:1024px){.anchor-layout{grid-template-columns:3fr 9fr;gap:48px}}
.anchor-nav{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;border-bottom:1px solid var(--line-soft)}
.anchor-nav::-webkit-scrollbar{height:0}
.anchor-nav__title{display:none}
.anchor-link{
  display:flex;align-items:center;height:38px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);color:var(--t2);font-size:14px;white-space:nowrap;
  transition:all 240ms var(--ease);
}
.anchor-link:hover{color:var(--t1);border-color:rgba(31,211,181,.45);background:rgba(255,255,255,.03)}
.anchor-link.is-active{background:var(--brand);border-color:transparent;color:var(--ink);font-weight:600}
@media (min-width:1024px){
  .anchor-nav{
    display:block;position:sticky;top:130px;align-self:start;
    overflow:visible;border-bottom:0;padding-bottom:0;
  }
  .anchor-nav__title{
    display:block;font-size:12.5px;font-weight:500;letter-spacing:.08em;
    color:var(--t3);margin-bottom:10px;padding-left:16px;
  }
  .anchor-link{
    height:44px;border-radius:0;border:0;border-left:2px solid transparent;
    padding:0 16px;font-size:14.5px;
  }
  .anchor-link:hover{background:rgba(255,255,255,.03);border-left-color:transparent}
  .anchor-link.is-active{
    background:linear-gradient(90deg,rgba(31,211,181,.14),rgba(31,211,181,0));
    border-left-color:var(--brand);color:var(--t1);font-weight:600;
  }
}

.scene-block{
  padding-bottom:44px;margin-bottom:44px;border-bottom:1px solid var(--line-soft);
  scroll-margin-top:130px;
}
.scene-block:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.scene-block__head{display:flex;flex-direction:column;gap:10px}
.scene-block__head h2{
  position:relative;padding-left:16px;
  font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.3;letter-spacing:-.01em;
}
.scene-block__head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),rgba(31,211,181,.15));
}
.scene-block__lead{color:var(--t2);font-size:15.5px;max-width:720px}

.row-cards{display:grid;grid-template-columns:1fr;gap:20px;margin-top:26px}
.media-card{
  display:grid;grid-template-columns:1fr;
  background:var(--bg-2);border:1px solid rgba(150,225,240,.12);
  border-radius:var(--r-card);overflow:hidden;
  transition:transform 240ms var(--ease),border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
@media (min-width:640px){.media-card{grid-template-columns:40% 60%}}
.media-card:hover{
  transform:translateY(-4px);
  border-color:rgba(31,211,181,.4);
  box-shadow:0 20px 50px -20px rgba(31,211,181,.35);
}
.media-card__thumb{position:relative;overflow:hidden;min-height:180px;background:var(--bg-1)}
.media-card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.media-card:hover .media-card__thumb img{transform:scale(1.04)}
.media-card__body{display:flex;flex-direction:column;gap:12px;padding:22px 24px}
.media-card__body h3{font-size:19px;font-weight:600;line-height:1.45}
.media-card__body p{color:var(--t2);font-size:15px;line-height:1.8}
@media (max-width:767px){
  .media-card__body{padding:18px 18px 20px}
  .media-card__body h3{font-size:17.5px}
}

/* ---------- 数据带 ---------- */
.stats-band{
  background:var(--bg-1);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
  padding:44px 0;
}
@media (min-width:1024px){.stats-band{padding:56px 0}}
.stats-band__grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:768px){.stats-band__grid{grid-template-columns:repeat(4,1fr);gap:0}}
.stat{padding-left:20px;border-left:1px solid rgba(150,225,240,.16)}
@media (min-width:768px){.stat{padding:0 24px}}
.stat__num{
  display:block;font-size:36px;font-weight:700;line-height:1.15;color:var(--brand);
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
@media (min-width:1024px){.stat__num{font-size:40px}}
.stat__num em{font-style:normal;font-size:14px;font-weight:500;color:var(--t2);margin-left:6px}
.stat--amber .stat__num{color:var(--accent)}
.stat__label{display:block;font-size:13px;color:var(--t2);margin-top:6px}

/* ---------- CTA ---------- */
.cta-section{padding:64px 0 72px}
@media (min-width:1024px){.cta-section{padding:88px 0 96px}}
.cta-band{
  position:relative;max-width:900px;margin:0 auto;overflow:hidden;
  border-radius:var(--r-panel);border:1px solid rgba(150,225,240,.16);
  background:linear-gradient(135deg,rgba(12,33,48,.96),rgba(31,211,181,.12));
  padding:44px 28px;text-align:center;
  box-shadow:0 30px 80px -50px rgba(31,211,181,.6);
}
@media (min-width:768px){.cta-band{padding:56px 48px}}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,211,181,.85),transparent);
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(150,225,240,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(150,225,240,.06) 1px,transparent 1px);
  background-size:40px 40px;
}
.cta-band__inner{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:14px}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.32}
.cta-band p{color:var(--t2);font-size:15.5px;max-width:560px}
.cta-band__actions{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:16px;margin-top:8px}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;background:var(--bg-1);border-top:1px solid rgba(150,225,240,.1);
  padding-top:52px;margin-top:8px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,211,181,.8),transparent);
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;padding-bottom:40px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.25fr;gap:40px}}
.footer-brand p{color:var(--t2);font-size:14px;line-height:1.8;margin-top:14px;max-width:320px}
.social-row{display:flex;gap:10px;margin-top:18px}
.social-row a{
  display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;
  border-radius:12px;background:var(--glass);border:1px solid var(--line);color:var(--t2);
  transition:all 240ms var(--ease);
}
.social-row a:hover{color:var(--brand);border-color:rgba(31,211,181,.5);background:rgba(31,211,181,.1)}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{color:var(--t2);font-size:14px;transition:color 240ms var(--ease)}
.footer-col ul a:hover{color:var(--brand)}
.footer-contact li{
  display:flex;gap:10px;font-size:13.5px;color:var(--t2);
  padding:8px 0;border-bottom:1px solid var(--line-soft);
}
.footer-contact li span:first-child{color:var(--t3);min-width:44px;flex:none}
.subscribe{
  display:flex;align-items:center;margin-top:16px;overflow:hidden;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-field);
  transition:border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
.subscribe:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(31,211,181,.14)}
.subscribe input{
  flex:1;min-width:0;height:44px;padding:0 14px;background:transparent;border:0;outline:none;
  color:var(--t1);font-size:14px;
}
.subscribe input::placeholder{color:var(--t3)}
.subscribe .btn{height:44px;border-radius:0;padding:0 18px;font-size:14px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  padding:18px 0 24px;border-top:1px solid var(--line-soft);
  font-size:12.5px;color:var(--t3);
}

/* ---------- 移动端抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;display:flex;flex-direction:column;
  padding:22px 20px 28px;background:rgba(6,18,25,.96);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  transform:translateY(-100%);opacity:0;pointer-events:none;
  transition:transform 320ms var(--ease),opacity 320ms var(--ease);
}
.mobile-drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
@media (min-width:1024px){.mobile-drawer{display:none}}
.mobile-drawer__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.mobile-nav{display:flex;flex-direction:column}
.mobile-nav a{
  font-size:20px;font-weight:600;color:var(--t1);
  padding:15px 0;border-bottom:1px solid var(--line-soft);
  transition:color 240ms var(--ease);
}
.mobile-nav a:hover,.mobile-nav a.is-active{color:var(--brand)}
.mobile-drawer__cta{margin-top:auto}
.mobile-drawer__cta .btn{width:100%}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* roulang page: category4 */
:root{
    --bg-0:#061219;
    --bg-1:#081823;
    --bg-2:#0C2130;
    --glass:rgba(255,255,255,.045);
    --line:rgba(150,225,240,.14);
    --line-soft:rgba(150,225,240,.08);
    --brand:#1FD3B5;
    --brand-deep:#14A38F;
    --brand-2:#4FA8FF;
    --accent:#FFC46B;
    --text:#EAF6F8;
    --text-2:#9FB6BF;
    --text-3:#6C8590;
    --ok:#2FD6A8;
    --warn:#FFB65C;
    --err:#FF7B72;
    --r-card:20px;
    --r-panel:24px;
    --r-btn:14px;
    --r-input:12px;
    --t:240ms cubic-bezier(.22,.61,.36,1);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--bg-0);
    color:var(--text);
    font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    letter-spacing:0;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body.no-scroll{overflow:hidden;}
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input,select,textarea{font:inherit;color:inherit;}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul,ol{padding:0;list-style:none;}
  ::selection{background:rgba(31,211,181,.3);color:#fff;}

  .wrap{
    width:100%;
    max-width:1180px;
    margin:0 auto;
    padding-left:20px;
    padding-right:20px;
  }
  @media (min-width:768px){
    .wrap{padding-left:32px;padding-right:32px;}
  }

  /* ---------- 顶部信息条 ---------- */
  .site-header{position:sticky;top:0;z-index:60;}
  .topbar{
    height:36px;
    background:var(--bg-1);
    border-bottom:1px solid var(--line-soft);
    font-size:12.5px;
    color:var(--text-2);
  }
  .topbar__inner{height:36px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
  .topbar__left{display:flex;align-items:center;gap:10px;min-width:0;}
  .topbar__dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px 1px rgba(31,211,181,.7);flex:none;}
  .topbar__domain{color:var(--text);letter-spacing:.02em;font-variant-numeric:tabular-nums;}
  .topbar__tip{color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
  .topbar__right{display:flex;align-items:center;gap:14px;flex:none;}
  .topbar__right a{transition:color var(--t);}
  .topbar__right a:hover{color:var(--brand);}
  .topbar__sep{width:1px;height:12px;background:var(--line);}
  @media (max-width:767px){
    .topbar__tip,.topbar__right .topbar__sep,.topbar__right a:nth-child(2){display:none;}
  }

  /* ---------- 主导航 ---------- */
  .navbar{
    height:68px;
    background:rgba(6,18,25,.72);
    border-bottom:1px solid transparent;
    transition:background var(--t),border-color var(--t),backdrop-filter var(--t);
  }
  .site-header.is-scrolled .navbar{
    background:rgba(6,18,25,.88);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-bottom-color:var(--line);
  }
  .navbar__inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
  .logo{display:inline-flex;align-items:center;gap:9px;flex:none;}
  .logo__mark{width:24px;height:24px;flex:none;}
  .logo__text{display:inline-flex;align-items:baseline;gap:3px;font-weight:700;letter-spacing:.01em;line-height:1;}
  .logo__text .l1{color:var(--text);font-size:20px;}
  .logo__text .l2{color:var(--brand);font-size:20px;}

  .navmenu{display:flex;align-items:center;gap:6px;}
  .navmenu a{
    position:relative;
    padding:10px 12px;
    font-size:14.5px;
    color:var(--text-2);
    border-radius:10px;
    transition:color var(--t),background var(--t);
    white-space:nowrap;
  }
  .navmenu a::after{
    content:"";
    position:absolute;
    left:12px;right:12px;bottom:4px;
    height:2px;
    border-radius:2px;
    background:var(--brand);
    transform:scaleX(0);
    transform-origin:center;
    transition:transform var(--t);
  }
  .navmenu a:hover{color:var(--text);background:rgba(255,255,255,.04);}
  .navmenu a:hover::after{transform:scaleX(1);}
  .navmenu a.is-active{color:var(--text);}
  .navmenu a.is-active::after{transform:scaleX(1);}

  .nav-actions{display:flex;align-items:center;gap:10px;flex:none;}
  .icon-btn{
    width:40px;height:40px;
    display:inline-flex;align-items:center;justify-content:center;
    background:var(--glass);
    border:1px solid var(--line);
    border-radius:12px;
    color:var(--text-2);
    cursor:pointer;
    transition:color var(--t),border-color var(--t),background var(--t),transform var(--t);
  }
  .icon-btn:hover{color:var(--brand);border-color:rgba(31,211,181,.45);background:rgba(31,211,181,.08);}
  .icon-btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
  .burger{display:inline-flex;}
  @media (min-width:1024px){
    .burger{display:none;}
  }
  @media (max-width:1023px){
    .navmenu{display:none;}
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;
    padding:0 22px;
    border-radius:var(--r-btn);
    border:1px solid transparent;
    font-size:15px;
    font-weight:600;
    cursor:pointer;
    transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),filter var(--t),color var(--t);
    white-space:nowrap;
  }
  .btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
  .btn:disabled,.btn[disabled]{opacity:.4;box-shadow:none;cursor:not-allowed;}
  .btn-glow{
    background:linear-gradient(135deg,var(--brand),var(--brand-deep));
    color:#061219;
    box-shadow:0 8px 30px -6px rgba(31,211,181,.55);
  }
  .btn-glow:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 14px 40px -8px rgba(31,211,181,.72);}
  .btn-glow:active{transform:translateY(0);filter:brightness(.96);}
  .btn-ghost{
    background:var(--glass);
    border-color:var(--line);
    color:var(--brand);
    backdrop-filter:blur(14px);
  }
  .btn-ghost:hover{background:rgba(31,211,181,.1);border-color:rgba(31,211,181,.5);transform:translateY(-2px);color:var(--brand);}
  .btn-text{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--brand-2);
    font-size:14.5px;
    font-weight:600;
    padding:6px 0;
    transition:color var(--t);
  }
  .btn-text svg{transition:transform var(--t);}
  .btn-text:hover{color:var(--brand);}
  .btn-text:hover svg{transform:translateX(3px);}
  .btn-text:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}

  /* ---------- 徽章 / 标签 ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 12px;
    border-radius:999px;
    font-size:11.5px;
    font-weight:500;
    letter-spacing:.04em;
    border:1px solid rgba(255,196,107,.4);
    background:rgba(255,196,107,.1);
    color:var(--accent);
  }
  .badge--mist{border-color:rgba(79,168,255,.4);background:rgba(79,168,255,.1);color:var(--brand-2);}
  .badge--brand{border-color:rgba(31,211,181,.4);background:rgba(31,211,181,.1);color:var(--brand);}
  .tag-pill{
    display:inline-flex;align-items:center;
    padding:4px 11px;
    border-radius:999px;
    font-size:12.5px;
    color:var(--text-2);
    border:1px solid var(--line);
    background:rgba(255,255,255,.03);
    transition:color var(--t),border-color var(--t);
  }
  .tag-pill:hover{color:var(--brand);border-color:rgba(31,211,181,.4);}

  /* ---------- 玻璃卡 ---------- */
  .glass-panel{
    background:var(--glass);
    border:1px solid var(--line);
    border-radius:var(--r-panel);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  }
  .card-solid{
    background:var(--bg-2);
    border:1px solid var(--line-soft);
    border-radius:var(--r-card);
    transition:border-color var(--t),transform var(--t),box-shadow var(--t);
  }
  .card-solid:hover{border-color:rgba(31,211,181,.42);transform:translateY(-4px);box-shadow:0 20px 50px -20px rgba(31,211,181,.35);}

  /* ---------- 面包屑 ---------- */
  .breadcrumb{
    display:flex;align-items:center;gap:8px;
    font-size:13px;
    color:var(--text-3);
    margin-bottom:22px;
  }
  .breadcrumb a{color:var(--text-3);transition:color var(--t);}
  .breadcrumb a:hover{color:var(--brand);}
  .breadcrumb .sep{opacity:.45;}
  .breadcrumb .cur{color:var(--text-2);}

  /* ---------- 分类页头 ---------- */
  .cat-hero{
    position:relative;
    padding:72px 0 66px;
    text-align:center;
    overflow:hidden;
    border-bottom:1px solid var(--line-soft);
  }
  .cat-hero::before,
  .cat-hero::after{
    content:"";
    position:absolute;
    width:520px;height:520px;
    border-radius:50%;
    pointer-events:none;
    filter:blur(8px);
  }
  .cat-hero::before{
    top:-260px;left:-140px;
    background:radial-gradient(circle,rgba(31,211,181,.16),transparent 68%);
  }
  .cat-hero::after{
    bottom:-300px;right:-160px;
    background:radial-gradient(circle,rgba(79,168,255,.14),transparent 68%);
  }
  .cat-hero .wrap{position:relative;z-index:1;}
  .cat-hero .breadcrumb{justify-content:center;}
  .cat-hero h1{
    font-size:clamp(28px,4vw,46px);
    font-weight:700;
    line-height:1.25;
    letter-spacing:-.01em;
    max-width:860px;
    margin:18px auto 0;
  }
  .cat-hero p{
    max-width:660px;
    margin:18px auto 0;
    color:var(--text-2);
    font-size:16.5px;
  }
  .cat-hero__actions{
    margin-top:32px;
    display:flex;
    flex-wrap:wrap;
    gap:14px;
    justify-content:center;
  }

  /* ---------- 通用板块 ---------- */
  .section{padding:72px 0;}
  @media (min-width:1024px){
    .section{padding:100px 0;}
  }
  .section--tight{padding:56px 0;}
  .section-divider{border-top:1px solid var(--line-soft);}
  .sec-head{max-width:760px;}
  .sec-title{
    font-size:clamp(23px,2.6vw,32px);
    font-weight:700;
    line-height:1.3;
    letter-spacing:-.005em;
    position:relative;
    padding-left:16px;
  }
  .sec-title::before{
    content:"";
    position:absolute;
    left:0;top:.22em;bottom:.22em;
    width:3px;
    border-radius:3px;
    background:linear-gradient(180deg,var(--brand),rgba(31,211,181,.2));
  }
  .sec-title--center{padding-left:0;text-align:center;}
  .sec-title--center::before{display:none;}
  .sec-sub{
    margin-top:14px;
    color:var(--text-2);
    font-size:15.5px;
    line-height:1.85;
  }
  .eyebrow{
    font-size:13px;
    letter-spacing:.06em;
    color:var(--brand);
    font-weight:500;
    margin-bottom:10px;
  }

  /* ---------- 保障卡片 ---------- */
  .guard-grid{
    display:grid;
    gap:22px;
    grid-template-columns:1fr;
    margin-top:44px;
  }
  @media (min-width:768px){
    .guard-grid{grid-template-columns:repeat(2,1fr);}
  }
  @media (min-width:1024px){
    .guard-grid{grid-template-columns:repeat(4,1fr);gap:24px;}
  }
  .guard-card{
    background:var(--glass);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:26px 22px 28px;
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
    transition:transform var(--t),border-color var(--t),box-shadow var(--t);
  }
  .guard-card:hover{
    transform:translateY(-4px);
    border-color:rgba(31,211,181,.42);
    box-shadow:0 20px 50px -20px rgba(31,211,181,.35);
  }
  .guard-icon{
    width:44px;height:44px;
    display:flex;align-items:center;justify-content:center;
    border-radius:14px;
    background:rgba(31,211,181,.12);
    color:var(--brand);
    border:1px solid rgba(31,211,181,.22);
  }
  .guard-card h3{
    margin-top:18px;
    font-size:17.5px;
    font-weight:600;
    line-height:1.5;
  }
  .guard-card p{
    margin-top:10px;
    font-size:14.5px;
    color:var(--text-2);
    line-height:1.8;
  }
  .guard-index{
    margin-top:16px;
    font-size:12.5px;
    color:var(--accent);
    letter-spacing:.08em;
    font-variant-numeric:tabular-nums;
  }

  /* ---------- 时间线 ---------- */
  .timeline{
    position:relative;
    margin-top:56px;
    padding:6px 0;
  }
  .timeline::before{
    content:"";
    position:absolute;
    left:13px;top:0;bottom:0;
    width:1px;
    background:linear-gradient(180deg,transparent,rgba(31,211,181,.55) 12%,rgba(31,211,181,.35) 82%,transparent);
  }
  .tl-item{
    position:relative;
    padding-left:46px;
    padding-bottom:38px;
  }
  .tl-item:last-child{padding-bottom:0;}
  .tl-dot{
    position:absolute;
    left:7px;top:12px;
    width:13px;height:13px;
    border-radius:50%;
    background:var(--bg-0);
    border:2px solid var(--brand);
    box-shadow:0 0 0 5px rgba(31,211,181,.1);
  }
  .tl-year{
    font-size:12.5px;
    letter-spacing:.1em;
    color:var(--accent);
    font-variant-numeric:tabular-nums;
  }
  .tl-item h3{
    margin-top:8px;
    font-size:17.5px;
    font-weight:600;
  }
  .tl-item p{
    margin-top:8px;
    font-size:14.5px;
    color:var(--text-2);
    max-width:520px;
    line-height:1.8;
  }
  @media (min-width:1024px){
    .timeline::before{left:50%;transform:translateX(-50%);}
    .tl-item{width:50%;padding-left:0;padding-right:52px;padding-bottom:46px;text-align:right;}
    .tl-item:nth-child(even){
      margin-left:50%;
      padding-right:0;
      padding-left:52px;
      text-align:left;
    }
    .tl-dot{left:auto;right:-6.5px;top:14px;}
    .tl-item:nth-child(even) .tl-dot{left:-6.5px;right:auto;}
    .tl-item:nth-child(even) p{margin-left:0;}
    .tl-item p{margin-left:auto;}
  }

  /* ---------- 联系区 ---------- */
  .contact-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:26px;
    margin-top:44px;
  }
  @media (min-width:1024px){
    .contact-grid{grid-template-columns:5fr 7fr;gap:32px;}
  }
  .contact-media{
    border-radius:var(--r-card);
    overflow:hidden;
    border:1px solid var(--line-soft);
    margin-bottom:22px;
    position:relative;
  }
  .contact-media img{
    width:100%;
    aspect-ratio:16/9;
    object-fit:cover;
    transition:transform 600ms cubic-bezier(.22,.61,.36,1);
  }
  .contact-media:hover img{transform:scale(1.03);}
  .contact-media::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(6,18,25,.05),rgba(6,18,25,.6));
  }
  .info-list{border-top:1px solid var(--line-soft);}
  .info-list li{
    display:flex;
    gap:18px;
    padding:15px 2px;
    border-bottom:1px solid var(--line-soft);
    font-size:14.5px;
  }
  .info-list .k{
    width:64px;
    flex:none;
    color:var(--text-3);
    font-size:13px;
    letter-spacing:.04em;
  }
  .info-list .v{color:var(--text-2);}

  .form-card{
    background:var(--glass);
    border:1px solid var(--line);
    border-radius:var(--r-panel);
    padding:28px 22px 30px;
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  }
  @media (min-width:768px){
    .form-card{padding:34px 32px 36px;}
  }
  .form-row{
    display:grid;
    grid-template-columns:1fr;
    gap:18px;
  }
  @media (min-width:768px){
    .form-row--2{grid-template-columns:repeat(2,1fr);}
  }
  .field{display:flex;flex-direction:column;gap:8px;margin-top:18px;}
  .field:first-child{margin-top:0;}
  .field label{
    font-size:13px;
    color:var(--text-2);
    letter-spacing:.02em;
  }
  .field .req{color:var(--accent);margin-left:3px;}
  .field input,
  .field select,
  .field textarea{
    width:100%;
    background:var(--bg-2);
    border:1px solid var(--line);
    border-radius:var(--r-input);
    padding:12px 14px;
    font-size:15px;
    color:var(--text);
    transition:border-color var(--t),box-shadow var(--t),background var(--t);
    appearance:none;
  }
  .field textarea{min-height:118px;resize:vertical;line-height:1.8;}
  .field input::placeholder,
  .field textarea::placeholder{color:var(--text-3);}
  .field input:focus,
  .field select:focus,
  .field textarea:focus{
    outline:none;
    border-color:var(--brand);
    box-shadow:0 0 0 4px rgba(31,211,181,.14);
    background:#0A1B27;
  }
  .field .select-wrap{position:relative;}
  .field .select-wrap svg{
    position:absolute;
    right:14px;top:50%;
    transform:translateY(-50%);
    pointer-events:none;
    color:var(--text-3);
  }
  .form-foot{
    margin-top:26px;
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:14px;
  }
  .form-tip{
    margin-top:14px;
    font-size:12.5px;
    color:var(--text-3);
  }
  .form-tip.is-ok{color:var(--ok);}
  .form-tip.is-err{color:var(--err);}

  /* ---------- FAQ ---------- */
  .faq-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:30px;
    margin-top:40px;
  }
  @media (min-width:1024px){
    .faq-grid{grid-template-columns:4fr 8fr;gap:48px;}
  }
  .faq-item{
    background:var(--glass);
    border:1px solid var(--line-soft);
    border-radius:16px;
    margin-bottom:12px;
    overflow:hidden;
    transition:border-color var(--t),background var(--t);
  }
  .faq-item:hover{border-color:rgba(31,211,181,.3);}
  .faq-item.is-open{border-color:rgba(31,211,181,.42);background:rgba(31,211,181,.05);}
  .faq-q{
    width:100%;
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:18px 20px;
    background:transparent;
    border:0;
    text-align:left;
    font-size:16.5px;
    font-weight:600;
    color:var(--text);
    cursor:pointer;
    transition:color var(--t);
  }
  .faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:-2px;}
  .faq-sign{
    flex:none;
    width:24px;height:24px;
    display:flex;align-items:center;justify-content:center;
    color:var(--text-2);
    font-size:20px;
    line-height:1;
    transition:transform var(--t),color var(--t);
  }
  .faq-item.is-open .faq-sign{transform:rotate(45deg);color:var(--brand);}
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height 320ms cubic-bezier(.22,.61,.36,1);
  }
  .faq-item.is-open .faq-a{max-height:340px;}
  .faq-a p{
    padding:0 20px 20px;
    margin-top:12px;
    font-size:15.5px;
    line-height:1.8;
    color:var(--text-2);
  }

  /* ---------- CTA ---------- */
  .cta-panel{
    position:relative;
    overflow:hidden;
    border-radius:var(--r-panel);
    border:1px solid var(--line);
    background:linear-gradient(135deg,rgba(12,33,48,.95),rgba(31,211,181,.1));
    padding:44px 24px;
    text-align:center;
    max-width:900px;
    margin:0 auto;
  }
  @media (min-width:1024px){
    .cta-panel{padding:56px 48px;}
  }
  .cta-panel::before{
    content:"";
    position:absolute;
    top:-60%;left:-10%;
    width:70%;height:220%;
    background:linear-gradient(90deg,transparent,rgba(31,211,181,.16),transparent);
    transform:rotate(18deg);
    pointer-events:none;
  }
  .cta-panel h2{
    position:relative;
    font-size:clamp(22px,2.6vw,30px);
    font-weight:700;
    line-height:1.35;
  }
  .cta-panel p{
    position:relative;
    margin-top:14px;
    color:var(--text-2);
    font-size:15.5px;
  }
  .cta-actions{
    position:relative;
    margin-top:28px;
    display:flex;
    flex-wrap:wrap;
    gap:14px;
    justify-content:center;
  }

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--bg-1);
    border-top:1px solid var(--line-soft);
    position:relative;
    margin-top:8px;
  }
  .site-footer::before{
    content:"";
    position:absolute;
    top:0;left:10%;right:10%;
    height:1px;
    background:linear-gradient(90deg,transparent,rgba(31,211,181,.6),transparent);
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:34px;
    padding-top:56px;
    padding-bottom:44px;
  }
  @media (min-width:768px){
    .footer-grid{grid-template-columns:repeat(2,1fr);}
  }
  @media (min-width:1024px){
    .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:40px;}
  }
  .footer-brand p{
    margin-top:16px;
    font-size:14px;
    color:var(--text-2);
    line-height:1.8;
    max-width:300px;
  }
  .social-row{display:flex;gap:10px;margin-top:20px;}
  .social-row a{
    width:36px;height:36px;
    display:flex;align-items:center;justify-content:center;
    border-radius:12px;
    background:var(--glass);
    border:1px solid var(--line);
    color:var(--text-2);
    transition:color var(--t),border-color var(--t),transform var(--t);
  }
  .social-row a:hover{color:var(--brand);border-color:rgba(31,211,181,.45);transform:translateY(-2px);}
  .footer-col h4{
    font-size:14px;
    font-weight:600;
    letter-spacing:.04em;
    color:var(--text);
  }
  .footer-col ul{margin-top:16px;display:flex;flex-direction:column;gap:11px;}
  .footer-col ul a{
    font-size:14px;
    color:var(--text-2);
    transition:color var(--t);
  }
  .footer-col ul a:hover{color:var(--brand);}
  .footer-contact li{display:flex;gap:12px;font-size:14px;color:var(--text-2);}
  .footer-contact .k{color:var(--text-3);width:38px;flex:none;font-size:13px;}
  .subscribe{
    margin-top:20px;
    display:flex;
    align-items:center;
    background:var(--bg-2);
    border:1px solid var(--line);
    border-radius:12px;
    padding:4px 4px 4px 14px;
    transition:border-color var(--t),box-shadow var(--t);
  }
  .subscribe:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(31,211,181,.14);}
  .subscribe input{
    flex:1;
    min-width:0;
    background:transparent;
    border:0;
    font-size:14px;
    padding:9px 0;
    color:var(--text);
  }
  .subscribe input:focus{outline:none;}
  .subscribe input::placeholder{color:var(--text-3);}
  .subscribe button{
    flex:none;
    height:36px;
    padding:0 16px;
    border:0;
    border-radius:9px;
    background:linear-gradient(135deg,var(--brand),var(--brand-deep));
    color:#061219;
    font-size:13.5px;
    font-weight:600;
    cursor:pointer;
    transition:filter var(--t);
  }
  .subscribe button:hover{filter:brightness(1.08);}
  .footer-bottom{
    border-top:1px solid var(--line-soft);
    padding:18px 0;
  }
  .footer-bottom__inner{
    display:flex;
    flex-wrap:wrap;
    gap:10px 24px;
    align-items:center;
    justify-content:space-between;
    font-size:12.5px;
    color:var(--text-3);
  }

  /* ---------- 移动端抽屉 ---------- */
  .mobile-drawer{
    position:fixed;
    inset:104px 0 0 0;
    background:rgba(6,18,25,.96);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    z-index:55;
    padding:28px 20px 100px;
    display:flex;
    flex-direction:column;
    gap:4px;
    transform:translateY(-12px);
    opacity:0;
    visibility:hidden;
    transition:opacity var(--t),transform var(--t),visibility var(--t);
    overflow-y:auto;
  }
  .mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .mobile-drawer a.d-link{
    font-size:20px;
    font-weight:600;
    padding:16px 4px;
    border-bottom:1px solid var(--line-soft);
    color:var(--text-2);
    min-height:56px;
    display:flex;align-items:center;
    transition:color var(--t),padding-left var(--t);
  }
  .mobile-drawer a.d-link:hover,
  .mobile-drawer a.d-link.is-active{color:var(--brand);padding-left:8px;}
  .mobile-drawer .btn{margin-top:24px;width:100%;}

  .sr-only{
    position:absolute;width:1px;height:1px;padding:0;margin:-1px;
    overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
  }

  @media (max-width:520px){
    body{font-size:15.5px;}
    .cat-hero{padding:52px 0 48px;}
    .section{padding:56px 0;}
    .guard-card{padding:22px 18px 24px;}
    .form-card{padding:22px 18px 26px;}
    .btn{height:44px;padding:0 18px;font-size:14.5px;}
  }

/* roulang page: category3 */
/* ===================== 设计变量 ===================== */
:root{
  --bg-0:#061219;
  --bg-1:#081823;
  --bg-2:#0C2130;
  --glass:rgba(255,255,255,.045);
  --line:rgba(150,225,240,.14);
  --line-soft:rgba(150,225,240,.08);
  --brand:#1FD3B5;
  --brand-deep:#14A38F;
  --brand-2:#4FA8FF;
  --accent:#FFC46B;
  --text:#EAF6F8;
  --text-2:#9FB6BF;
  --text-3:#6C8590;
  --ink:#061219;
  --ok:#2FD6A8;
  --warn:#FFB65C;
  --err:#FF7B72;
  --r-card:20px;
  --r-panel:24px;
  --r-btn:14px;
  --r-input:12px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-glow:0 8px 30px -6px rgba(31,211,181,.55);
  --shadow-card:0 20px 50px -20px rgba(31,211,181,.35);
}

/* ===================== 基础 reset ===================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:none;cursor:pointer}
table{border-collapse:collapse}
::selection{background:rgba(31,211,181,.3);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-thumb{background:rgba(150,225,240,.18);border-radius:99px}
::-webkit-scrollbar-track{background:transparent}

/* ===================== 容器与排版基元 ===================== */
.wrap{width:100%;max-width:1180px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.wrap{padding-left:32px;padding-right:32px}}

.section{padding-top:64px;padding-bottom:64px;position:relative}
@media(min-width:1024px){.section{padding-top:96px;padding-bottom:96px}}
.section--tight{padding-top:44px;padding-bottom:44px}
@media(min-width:1024px){.section--tight{padding-top:56px;padding-bottom:56px}}

.h1{font-size:clamp(30px,4.4vw,52px);font-weight:700;line-height:1.22;letter-spacing:-.01em}
.h2{font-size:clamp(24px,2.8vw,34px);font-weight:700;line-height:1.3;letter-spacing:-.005em}
.h3{font-size:20px;font-weight:600;line-height:1.5}
.h4{font-size:17px;font-weight:600;line-height:1.6}
.small{font-size:13px;color:var(--text-3);line-height:1.7}
.lead{font-size:16.5px;line-height:1.85;color:var(--text-2);margin-top:16px;max-width:46em}
.num{font-variant-numeric:tabular-nums}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;letter-spacing:.04em;color:var(--brand);
}
.eyebrow::before{content:"";width:18px;height:1px;background:linear-gradient(90deg,var(--brand),transparent)}
.rule{height:1px;background:linear-gradient(90deg,transparent,var(--line) 18%,var(--line) 82%,transparent);border:none;margin:0}

/* ===================== 顶部信息条 ===================== */
.site-header{position:sticky;top:0;z-index:60}
.topbar{
  height:36px;
  background:var(--bg-1);
  border-bottom:1px solid var(--line-soft);
  font-size:12.5px;
  color:var(--text-2);
}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px}
.topbar__left{display:flex;align-items:center;gap:10px;min-width:0}
.topbar__dot{
  width:6px;height:6px;border-radius:50%;background:var(--brand);flex:none;
  box-shadow:0 0 0 4px rgba(31,211,181,.14);
}
.topbar__domain{color:var(--text);letter-spacing:.02em;white-space:nowrap}
.topbar__tip{color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar__right{display:flex;align-items:center;gap:12px;white-space:nowrap}
.topbar__right a{transition:color 240ms var(--ease)}
.topbar__right a:hover{color:var(--brand)}
.topbar__sep{width:1px;height:12px;background:var(--line);display:inline-block}

/* ===================== 主导航 ===================== */
.navbar{
  background:rgba(6,18,25,.72);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background 240ms var(--ease),border-color 240ms var(--ease);
}
.site-header.is-stuck .navbar{
  background:rgba(8,24,35,.9);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom-color:var(--line-soft);
}
.navbar__inner{display:flex;align-items:center;gap:16px;height:68px}

.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo__mark{width:24px;height:24px;flex:none}
.logo__text{font-size:18px;font-weight:700;letter-spacing:.01em;line-height:1}
.logo__text .l1{color:var(--text)}
.logo__text .l2{color:var(--brand);margin-left:2px}

.navmenu{display:none}
@media(min-width:1024px){
  .navmenu{display:flex;align-items:center;gap:4px;margin-left:auto}
}
.navmenu a{
  position:relative;
  padding:8px 12px;
  font-size:14.5px;
  color:var(--text-2);
  border-radius:10px;
  transition:color 240ms var(--ease),background 240ms var(--ease);
  white-space:nowrap;
}
.navmenu a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:center;
  transition:transform 240ms var(--ease);
}
.navmenu a:hover{color:var(--text);background:rgba(255,255,255,.03)}
.navmenu a:hover::after{transform:scaleX(1)}
.navmenu a.is-active{color:var(--text);font-weight:600}
.navmenu a.is-active::after{transform:scaleX(1)}

.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
@media(min-width:1024px){.nav-actions{margin-left:16px}}

.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;background:var(--glass);border:1px solid var(--line);
  color:var(--text-2);transition:all 240ms var(--ease);flex:none;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(31,211,181,.42);background:rgba(31,211,181,.07)}
.icon-btn:active{transform:scale(.96)}

.nav-cta{display:none}
@media(min-width:1024px){.nav-cta{display:inline-flex}}
.burger{display:inline-flex}
@media(min-width:1024px){.burger{display:none}}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:14.5px;font-weight:600;border:1px solid transparent;
  transition:all 240ms var(--ease);cursor:pointer;white-space:nowrap;
}
.btn-glow{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:var(--ink);
  box-shadow:var(--shadow-glow);
}
.btn-glow:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 14px 40px -8px rgba(31,211,181,.72)}
.btn-glow:active{transform:translateY(0);filter:brightness(.96)}
.btn-glass{
  background:var(--glass);border-color:var(--line);color:var(--brand);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.btn-glass:hover{background:rgba(31,211,181,.08);border-color:rgba(31,211,181,.45);transform:translateY(-2px)}
.btn-glass:active{transform:translateY(0)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-2);font-size:14px;font-weight:600;
  padding:0;min-height:auto;border:none;background:none;
  transition:color 240ms var(--ease);
}
.btn-text .arrow{transition:transform 240ms var(--ease)}
.btn-text:hover{color:var(--brand)}
.btn-text:hover .arrow{transform:translateX(3px)}
.btn[disabled],.btn.is-disabled{opacity:.4;box-shadow:none;cursor:not-allowed;transform:none}

/* ===================== 面包屑 ===================== */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.crumb a{color:var(--text-2);transition:color 240ms var(--ease)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:rgba(150,225,240,.32)}
.crumb .now{color:var(--text)}

/* ===================== 分类页紧凑标题区 ===================== */
.doc-hero{
  position:relative;
  border-bottom:1px solid var(--line-soft);
  padding-top:34px;
  padding-bottom:34px;
  background:
    radial-gradient(680px 250px at 12% -10%,rgba(31,211,181,.14),transparent 70%),
    radial-gradient(560px 240px at 92% 8%,rgba(79,168,255,.10),transparent 72%),
    var(--bg-0);
  overflow:hidden;
}
.doc-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:linear-gradient(rgba(150,225,240,.6) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(150,225,240,.6) 1px,transparent 1px);
  background-size:40px 40px;
  mask-image:radial-gradient(70% 80% at 30% 20%,#000,transparent 75%);
  -webkit-mask-image:radial-gradient(70% 80% at 30% 20%,#000,transparent 75%);
}
.doc-hero__inner{position:relative;z-index:1}
.doc-hero__grid{display:grid;gap:26px;align-items:end;margin-top:22px}
@media(min-width:1024px){
  .doc-hero__grid{grid-template-columns:minmax(0,1.55fr) minmax(0,.95fr);gap:44px}
}
.doc-hero__title{margin-top:14px}
.doc-hero__meta{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:22px;font-size:13px;color:var(--text-3)}
.doc-hero__meta b{color:var(--brand);font-weight:600}

/* ===================== 搜索框 ===================== */
.search-panel{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:18px;
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.search-panel__label{font-size:13px;color:var(--text-3);margin-bottom:10px;display:block}
.search-bar{
  display:flex;align-items:center;gap:8px;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-input);
  padding:6px 6px 6px 14px;
  transition:border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
.search-bar:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(31,211,181,.14)}
.search-bar svg{color:var(--text-3);flex:none}
.search-bar input{
  flex:1;min-width:0;height:38px;background:transparent;border:none;outline:none;
  font-size:14.5px;color:var(--text);
}
.search-bar input::placeholder{color:var(--text-3)}
.search-bar .btn{min-height:38px;padding:0 16px;font-size:13.5px}
.quick-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.quick-links a{
  font-size:12.5px;color:var(--text-2);
  padding:5px 11px;border-radius:999px;
  border:1px solid var(--line-soft);background:rgba(255,255,255,.03);
  transition:all 240ms var(--ease);
}
.quick-links a:hover{color:var(--brand);border-color:rgba(31,211,181,.4)}

/* ===================== 筛选胶囊 ===================== */
.chip-row{
  display:flex;gap:10px;overflow-x:auto;padding:6px 0 14px;
  scrollbar-width:thin;
}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;
  min-height:38px;padding:0 16px;border-radius:999px;
  font-size:13.5px;color:var(--text-2);
  background:var(--glass);border:1px solid var(--line);
  transition:all 240ms var(--ease);
}
.chip:hover{color:var(--text);border-color:rgba(31,211,181,.45);background:rgba(31,211,181,.06)}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:var(--ink);font-weight:600}

/* ===================== 文档双栏 ===================== */
.doc-layout{display:grid;gap:30px;align-items:start}
@media(min-width:1024px){
  .doc-layout{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:40px}
}
.doc-list-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:10px;margin-bottom:18px}
.doc-list-head p{font-size:13.5px;color:var(--text-3)}

.doc-list{
  background:var(--bg-1);
  border:1px solid var(--line-soft);
  border-radius:var(--r-panel);
  overflow:hidden;
}
.doc-row{
  display:grid;
  grid-template-columns:56px 1fr;
  grid-template-areas:"thumb body" ". meta";
  gap:6px 16px;
  padding:18px 20px;
  border-bottom:1px solid var(--line-soft);
  position:relative;
  transition:background 240ms var(--ease);
}
.doc-row:last-child{border-bottom:none}
.doc-row::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;border-radius:2px;
  background:var(--brand);transform:scaleY(0);transform-origin:top;
  transition:transform 240ms var(--ease);
}
.doc-row:hover{background:rgba(31,211,181,.05)}
.doc-row:hover::before{transform:scaleY(1)}
@media(min-width:900px){
  .doc-row{
    grid-template-columns:56px minmax(0,1fr) auto;
    grid-template-areas:"thumb body meta";
    align-items:center;
    gap:16px;
    min-height:96px;
  }
}
.doc-row__thumb{
  grid-area:thumb;width:56px;height:56px;border-radius:14px;object-fit:cover;
  border:1px solid var(--line-soft);
}
.doc-row__body{grid-area:body;min-width:0}
.doc-row__title{
  font-size:16px;font-weight:600;color:var(--text);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
  transition:color 240ms var(--ease);
}
.doc-row:hover .doc-row__title{color:var(--brand)}
.doc-row__desc{
  margin-top:4px;font-size:13.5px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.doc-row__meta{
  grid-area:meta;display:flex;align-items:center;gap:12px;
  font-size:12.5px;color:var(--text-3);white-space:nowrap;
}
@media(min-width:900px){.doc-row__meta{justify-content:flex-end}}

.badge{
  display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:999px;font-size:11.5px;line-height:1.6;
  border:1px solid rgba(79,168,255,.4);color:var(--brand-2);
  background:rgba(79,168,255,.08);
}
.badge--amber{border-color:rgba(255,196,107,.42);color:var(--accent);background:rgba(255,196,107,.08)}
.badge--brand{border-color:rgba(31,211,181,.42);color:var(--brand);background:rgba(31,211,181,.08)}

/* 右栏 */
.side-card{
  background:var(--bg-1);
  border:1px solid var(--line-soft);
  border-radius:var(--r-panel);
  padding:22px;
}
.side-card + .side-card{margin-top:22px}
.side-card__head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-bottom:14px;margin-bottom:6px;border-bottom:1px solid var(--line-soft);
}
.side-card__head h2{font-size:16px;font-weight:600}
.rank-list li{
  display:grid;grid-template-columns:26px minmax(0,1fr);gap:10px;
  padding:11px 0;border-bottom:1px solid var(--line-soft);
  font-size:14.5px;color:var(--text-2);line-height:1.7;align-items:start;
}
.rank-list li:last-child{border-bottom:none;padding-bottom:2px}
.rank-list .rk{font-weight:700;font-size:13.5px;color:var(--accent);line-height:1.75}
.rank-list a{transition:color 240ms var(--ease)}
.rank-list a:hover{color:var(--brand)}

.tag-cloud{display:flex;flex-wrap:wrap;gap:9px;margin-top:12px}
.tag-pill{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:999px;font-size:12.5px;
  border:1px solid var(--line);background:var(--glass);color:var(--text-2);
  transition:all 240ms var(--ease);
}
.tag-pill:hover{color:var(--brand);border-color:rgba(31,211,181,.42);background:rgba(31,211,181,.07)}

.sub-form{display:flex;gap:8px;margin-top:14px}
.sub-form input{
  flex:1;min-width:0;height:44px;padding:0 14px;
  background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--r-input);outline:none;font-size:14px;
  transition:border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
.sub-form input::placeholder{color:var(--text-3)}
.sub-form input:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(31,211,181,.14)}
.sub-form .btn{min-height:44px;padding:0 16px;font-size:13.5px}

/* 分页 */
.pager{display:flex;justify-content:center;align-items:center;gap:10px;margin-top:26px;flex-wrap:wrap}
.pager a,.pager span{
  width:36px;height:36px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13.5px;font-variant-numeric:tabular-nums;
  border:1px solid var(--line);background:var(--glass);color:var(--text-2);
  transition:all 240ms var(--ease);
}
.pager a:hover{color:var(--brand);border-color:rgba(31,211,181,.45)}
.pager .is-current{background:var(--brand);border-color:var(--brand);color:var(--ink);font-weight:700}
.pager .is-current:hover{color:var(--ink)}
.pager .wide{width:auto;padding:0 16px;border-radius:999px}

/* ===================== 步骤区 ===================== */
.steps{position:relative;display:grid;gap:18px;margin-top:36px}
@media(min-width:900px){.steps{grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}}
.step{
  position:relative;padding:24px 22px 26px;
  background:var(--bg-2);border:1px solid var(--line-soft);
  border-radius:var(--r-card);
  transition:transform 240ms var(--ease),border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:rgba(31,211,181,.4);box-shadow:var(--shadow-card)}
.step__num{
  font-size:26px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;line-height:1;
  letter-spacing:.02em;
}
.step__title{margin-top:14px;font-size:17px;font-weight:600}
.step__text{margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.8}
.step__bar{
  position:absolute;left:22px;right:22px;bottom:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),transparent);
  opacity:.5;transition:opacity 240ms var(--ease);
}
.step:hover .step__bar{opacity:1}

/* ===================== FAQ ===================== */
.faq-grid{display:grid;gap:26px}
@media(min-width:1024px){.faq-grid{grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:52px;align-items:start}}
.faq-list{display:flex;flex-direction:column}
.faq-item{
  background:var(--glass);
  border:1px solid var(--line-soft);
  border-radius:var(--r-card);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color 240ms var(--ease),background 240ms var(--ease);
}
.faq-item:hover{border-color:rgba(31,211,181,.3)}
.faq-item.is-open{border-color:rgba(31,211,181,.42);background:rgba(31,211,181,.05)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;padding:18px 20px;font-size:17px;font-weight:600;color:var(--text);
  transition:color 240ms var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-plus{
  flex:none;width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-2);font-size:16px;line-height:1;
  transition:transform 240ms var(--ease),color 240ms var(--ease),border-color 240ms var(--ease);
}
.faq-item.is-open .faq-plus{transform:rotate(45deg);color:var(--brand);border-color:rgba(31,211,181,.5)}
.faq-a{max-height:0;opacity:0;overflow:hidden;transition:max-height 320ms var(--ease),opacity 240ms var(--ease)}
.faq-item.is-open .faq-a{max-height:320px;opacity:1}
.faq-a p{padding:0 20px 20px;font-size:15.5px;line-height:1.8;color:var(--text-2);max-width:64ch}

/* ===================== CTA ===================== */
.cta-band{
  position:relative;max-width:900px;margin:0 auto;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-panel);
  padding:38px 28px;
  background:
    linear-gradient(115deg,transparent 44%,rgba(31,211,181,.16) 50%,transparent 56%),
    linear-gradient(150deg,rgba(12,33,48,1),rgba(31,211,181,.10)),
    var(--bg-2);
}
@media(min-width:768px){.cta-band{padding:52px 48px}}
.cta-band__inner{position:relative;z-index:1;display:grid;gap:22px}
@media(min-width:900px){
  .cta-band__inner{grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:36px}
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35}
.cta-band p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:44ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

/* ===================== 页脚 ===================== */
.site-footer{
  position:relative;margin-top:24px;
  background:var(--bg-1);
  border-top:1px solid var(--line-soft);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,211,181,.75),transparent);
}
.footer-grid{display:grid;gap:32px;padding-top:56px;padding-bottom:40px}
@media(min-width:768px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));padding-top:64px;padding-bottom:44px}
}
@media(min-width:1024px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.5fr;gap:40px}
}
.footer-brand .logo__text{font-size:19px}
.footer-brand p{margin-top:14px;font-size:13.5px;line-height:1.85;color:var(--text-2);max-width:34ch}
.social-row{display:flex;gap:10px;margin-top:18px}
.social-row a{
  width:38px;height:38px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);
  transition:all 240ms var(--ease);
}
.social-row a:hover{color:var(--brand);border-color:rgba(31,211,181,.45);transform:translateY(-2px)}
.footer-col h4{font-size:14.5px;font-weight:600;color:var(--text);margin-bottom:14px}
.footer-col ul li{margin-bottom:10px;font-size:13.5px;color:var(--text-2)}
.footer-col ul li a{transition:color 240ms var(--ease)}
.footer-col ul li a:hover{color:var(--brand)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--text-2);margin-bottom:10px}
.footer-contact li span:first-child{color:var(--text-3);flex:none;min-width:38px}
.subscribe{display:flex;gap:8px;margin-top:16px;align-items:center;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-input);
  padding:5px 5px 5px 14px;transition:border-color 240ms var(--ease),box-shadow 240ms var(--ease)}
.subscribe:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(31,211,181,.14)}
.subscribe input{flex:1;min-width:0;height:38px;background:transparent;border:none;outline:none;font-size:13.5px;color:var(--text)}
.subscribe input::placeholder{color:var(--text-3)}
.subscribe .btn{min-height:38px;padding:0 16px;font-size:13px}
.footer-bottom{border-top:1px solid var(--line-soft)}
.footer-bottom__inner{
  display:flex;flex-wrap:wrap;gap:8px 20px;align-items:center;justify-content:space-between;
  padding-top:18px;padding-bottom:18px;font-size:12.5px;color:var(--text-3);
}
.footer-bottom__domain{color:var(--text-2)}

/* ===================== 移动端抽屉 ===================== */
.drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(6,18,25,.96);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  display:flex;flex-direction:column;
  padding:22px 20px 28px;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity 240ms var(--ease),transform 240ms var(--ease),visibility 240ms var(--ease);
}
.drawer.is-open{opacity:1;visibility:visible;transform:none}
.drawer__head{display:flex;align-items:center;justify-content:space-between;height:44px}
.drawer__nav{display:flex;flex-direction:column;gap:6px;margin-top:26px;flex:1;overflow-y:auto}
.drawer__nav a{
  font-size:20px;font-weight:600;color:var(--text-2);
  padding:14px 0;border-bottom:1px solid var(--line-soft);
  transition:color 240ms var(--ease);
}
.drawer__nav a:hover,.drawer__nav a.is-active{color:var(--brand)}
.drawer__foot{margin-top:20px}
.drawer__foot .btn{width:100%}

@media(max-width:767px){
  .tb-hide{display:none !important}
  .topbar__tip{display:none}
  body{font-size:15.5px}
}