/* roulang page: index */
:root{
  --bg:#0B0A12;
  --bg-2:#120F1C;
  --panel:#171325;
  --glass:rgba(255,255,255,.05);
  --glass-strong:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.18);
  --mint:#2FE3B0;
  --mint-soft:rgba(47,227,176,.12);
  --mint-glow:rgba(47,227,176,.45);
  --orange:#FF7A45;
  --purple:#9A8CFF;
  --text:#F2F0FA;
  --text-2:#A9A3BE;
  --text-3:#6F6A85;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --shadow-card:0 18px 40px -18px rgba(0,0,0,.7);
  --shadow-btn:0 10px 30px -8px rgba(47,227,176,.45);
  --sect:88px;
  --nav-w:240px;
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img)}
a{color:var(--mint);text-decoration:none;text-underline-offset:3px}
a:hover{text-decoration:underline}
h1,h2,h3,h4{margin:0 0 14px;font-weight:700;line-height:1.3;color:var(--text)}
h1{font-size:clamp(30px,4vw,52px);line-height:1.2}
h2{font-size:clamp(24px,2.6vw,36px)}
h3{font-size:20px}
p{margin:0 0 14px;color:var(--text-2)}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:16px}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.16em;
  color:var(--purple);text-transform:uppercase;margin-bottom:12px;
  border:1px solid rgba(154,140,255,.28);border-radius:var(--r-pill);
  padding:3px 14px;background:rgba(154,140,255,.08);
}
.section__lead{max-width:760px;font-size:16px}
.section{padding:var(--sect) 0;position:relative}
.section--alt{background:var(--bg-2)}
.section__head{margin-bottom:44px;max-width:800px}

/* ============ 布局外壳 ============ */
.app-shell{min-height:100vh}
.content-wrap{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column}
.content-wrap main{flex:1}

/* ============ 左侧导航 ============ */
.side-nav{
  position:fixed;top:0;left:0;width:var(--nav-w);height:100vh;
  display:flex;flex-direction:column;gap:22px;
  padding:26px 18px 20px;
  background:rgba(18,15,28,.94);
  border-right:1px solid var(--line);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  z-index:80;overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand:hover{text-decoration:none}
.brand__mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--mint),#0f8f6e);
  color:#08201a;font-weight:700;font-size:18px;
  box-shadow:0 8px 20px -8px var(--mint-glow);
}
.brand__text{font-size:17px;font-weight:700;color:var(--text);letter-spacing:.02em}
.brand__sub{display:block;font-size:12px;font-weight:400;color:var(--text-3);letter-spacing:.08em}
.side-nav__menu{display:flex;flex-direction:column;gap:4px}
.side-nav__link{
  position:relative;display:flex;align-items:center;gap:11px;
  padding:11px 12px;border-radius:10px;color:var(--text-2);
  font-size:15px;transition:all .22s ease;border-left:3px solid transparent;
}
.side-nav__link i{width:18px;text-align:center;font-size:14px;color:var(--text-3);transition:color .22s ease}
.side-nav__link:hover{
  color:var(--text);background:rgba(255,255,255,.045);
  transform:translateX(2px);text-decoration:none;
}
.side-nav__link:hover i{color:var(--mint)}
.side-nav__link.is-active{
  color:var(--text);background:var(--mint-soft);
  border-left-color:var(--mint);font-weight:700;
}
.side-nav__link.is-active i{color:var(--mint)}
.side-nav__foot{margin-top:auto;border-top:1px solid var(--line);padding-top:16px}
.side-nav__label{margin:0 0 4px;font-size:12px;color:var(--text-3);letter-spacing:.1em}
.side-nav__value{margin:0 0 6px;font-size:13px;color:var(--text-2)}

/* ============ 顶部公告条 ============ */
.ticker{
  min-height:40px;display:flex;align-items:center;gap:12px;
  padding:8px 24px;font-size:14px;color:var(--text-2);
  background:linear-gradient(90deg,rgba(255,122,69,.14),rgba(47,227,176,.06) 55%,transparent);
  border-bottom:1px solid var(--line);
}
.ticker__tag{
  flex:0 0 auto;font-size:12px;font-weight:700;color:#2a1105;
  background:var(--orange);border-radius:var(--r-pill);padding:2px 10px;
}
.ticker__text{color:var(--text-2)}
.ticker__text b{color:var(--orange);font-weight:700}

/* ============ 移动端顶栏 ============ */
.mobile-topbar{
  display:none;position:sticky;top:0;z-index:70;
  height:60px;align-items:center;justify-content:space-between;
  padding:0 18px;background:rgba(11,10,18,.86);
  border-bottom:1px solid transparent;transition:all .25s ease;
}
.mobile-topbar.is-scrolled{
  background:rgba(11,10,18,.75);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
}
.nav-toggle{
  width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:var(--glass);color:var(--text);display:grid;place-items:center;
  cursor:pointer;transition:all .2s ease;
}
.nav-toggle:hover{border-color:var(--mint);color:var(--mint)}
.nav-mask{
  display:none;position:fixed;inset:0;background:rgba(6,5,10,.72);
  backdrop-filter:blur(2px);z-index:75;
}
.nav-mask.is-active{display:block}

/* ============ 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:700;cursor:pointer;border:1px solid transparent;
  transition:all .22s ease;text-decoration:none;line-height:1;
}
.btn:hover{text-decoration:none}
.btn--primary{
  background:var(--mint);color:#06231b;box-shadow:var(--shadow-btn);
}
.btn--primary:hover{
  filter:brightness(1.08);box-shadow:0 14px 36px -8px var(--mint-glow);
  transform:translateY(-1px);color:#06231b;
}
.btn--primary:active{transform:translateY(1px)}
.btn--ghost{
  background:transparent;color:var(--text);border-color:var(--line-strong);
}
.btn--ghost:hover{border-color:var(--mint);color:var(--mint);background:var(--mint-soft)}
.btn--ghost:active{transform:translateY(1px)}
.btn--block{width:100%}
.btn--sm{height:36px;padding:0 16px;font-size:14px}
.btn:focus-visible,.nav-toggle:focus-visible,a:focus-visible{
  outline:2px solid var(--mint);outline-offset:2px;border-radius:6px;
}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:96px 0 88px;
  background-image:linear-gradient(100deg,rgba(11,10,18,.96) 8%,rgba(11,10,18,.78) 46%,rgba(11,10,18,.28) 100%),url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center right;
  border-bottom:1px solid var(--line);
}
.hero__inner{position:relative;z-index:2;max-width:760px}
.hero__kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;
  color:var(--mint);background:var(--mint-soft);border:1px solid rgba(47,227,176,.3);
  border-radius:var(--r-pill);padding:5px 14px;margin-bottom:20px;letter-spacing:.06em;
}
.hero__title{margin-bottom:18px;max-width:16em}
.hero__title em{font-style:normal;color:var(--mint)}
.hero__sub{
  font-size:17px;color:var(--text-2);max-width:600px;margin-bottom:28px;
}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero__facts{display:flex;flex-wrap:wrap;gap:28px}
.hero__fact{min-width:120px}
.hero__fact b{display:block;font-family:var(--mono);font-size:24px;color:var(--text)}
.hero__fact span{font-size:13px;color:var(--text-3)}
.hero__badge{
  position:absolute;right:24px;bottom:34px;z-index:3;
  background:var(--glass);border:1px solid rgba(255,122,69,.42);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-radius:var(--r-card);padding:14px 18px;text-align:right;
  box-shadow:var(--shadow-card);
}
.hero__badge span{display:block;font-size:12px;color:var(--orange);letter-spacing:.1em;margin-bottom:4px}
.hero__badge b{font-family:var(--mono);font-size:26px;color:var(--text)}

/* ============ 通用卡片 ============ */
.card{
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;
  font-size:12px;border-radius:var(--r-pill);line-height:1;font-weight:700;
}
.badge--purple{background:rgba(154,140,255,.16);color:var(--purple);border:1px solid rgba(154,140,255,.32)}
.badge--mint{background:var(--mint-soft);color:var(--mint);border:1px solid rgba(47,227,176,.34)}
.badge--orange{background:rgba(255,122,69,.16);color:var(--orange);border:1px solid rgba(255,122,69,.36)}

/* ============ 优惠阶梯 ============ */
.ladder{position:relative;padding-left:36px}
.ladder::before{
  content:"";position:absolute;left:9px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,var(--mint),rgba(154,140,255,.4),rgba(255,122,69,.2));
}
.ladder-item{position:relative;margin-bottom:18px}
.ladder-item:last-child{margin-bottom:0}
.ladder-item::before{
  content:"";position:absolute;left:-33px;top:30px;width:12px;height:12px;
  border-radius:50%;background:var(--mint);box-shadow:0 0 0 5px rgba(47,227,176,.14);
}
.ladder-item.is-locked{opacity:.6}
.ladder-item.is-locked::before{background:var(--text-3);box-shadow:0 0 0 5px rgba(111,106,133,.16)}
.ladder-item__top{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:10px}
.ladder-item__top h3{margin:0;font-size:19px}
.ladder-item__gate{
  font-family:var(--mono);font-size:13px;color:var(--text-2);
  border:1px solid var(--line);border-radius:var(--r-pill);padding:2px 12px;
}
.ladder-item__list{display:grid;gap:6px;margin:14px 0 16px}
.ladder-item__list li{
  font-size:14px;color:var(--text-2);padding-left:20px;position:relative;
}
.ladder-item__list li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;
  border-radius:2px;background:var(--purple);opacity:.8;
}
.bar{height:6px;border-radius:var(--r-pill);background:rgba(255,255,255,.08);overflow:hidden;margin-bottom:8px}
.bar span{display:block;height:100%;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--mint),#7bf3d5)}
.ladder-item__foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px}
.ladder-item__note{font-size:13px;color:var(--text-3);margin:0}

/* ============ 套餐对比 ============ */
.plan{
  position:relative;height:100%;display:flex;flex-direction:column;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 22px;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card);transition:transform .25s ease,border-color .25s ease;
}
.plan:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.plan.is-featured{
  border-color:var(--mint);transform:translateY(-12px);
  box-shadow:0 26px 54px -20px rgba(47,227,176,.34);
  background:rgba(47,227,176,.06);
}
.plan.is-featured:hover{transform:translateY(-16px)}
.plan__flag{
  position:absolute;top:-12px;right:18px;height:24px;padding:0 12px;
  display:inline-flex;align-items:center;font-size:12px;font-weight:700;
  background:var(--mint);color:#06231b;border-radius:var(--r-pill);
}
.plan h3{margin-bottom:6px;font-size:20px}
.plan__price{margin:0 0 18px;font-size:14px;color:var(--text-3)}
.plan__price b{font-family:var(--mono);font-size:32px;color:var(--orange);margin-right:4px}
.plan__list{display:grid;gap:0;margin-bottom:22px}
.plan__list li{
  font-size:14px;color:var(--text-2);padding:10px 0;border-bottom:1px dashed var(--line);
  display:flex;justify-content:space-between;gap:12px;
}
.plan__list li span:last-child{color:var(--text);font-family:var(--mono);font-size:13px}
.plan .btn{margin-top:auto}

/* ============ 限时入口 ============ */
.limited-card{
  position:relative;overflow:hidden;height:100%;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);transition:transform .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;
}
.limited-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.limited-card__flag{
  position:absolute;top:14px;left:14px;z-index:3;
  font-size:12px;font-weight:700;color:#2a1105;background:var(--orange);
  border-radius:var(--r-pill);padding:3px 11px;
}
.limited-card__cover{height:150px;width:100%;object-fit:cover;border-radius:0}
.limited-card__body{padding:20px;display:flex;flex-direction:column;flex:1}
.limited-card__body h3{font-size:18px;margin-bottom:8px}
.limited-card__body p{font-size:14px;margin-bottom:16px}
.limited-card__time{
  display:flex;align-items:center;gap:10px;font-family:var(--mono);
  font-size:22px;color:var(--orange);margin-bottom:18px;
}
.limited-card__time small{font-family:var(--font);font-size:12px;color:var(--text-3)}
.limited-card__go{
  margin-top:auto;display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--mint);
}
.limited-card__go i{transition:transform .22s ease}
.limited-card:hover .limited-card__go i{transform:translateX(5px)}

/* ============ 图文卡片 ============ */
.feature-card{
  height:100%;background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card);transition:transform .25s ease,border-color .25s ease;
}
.feature-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.feature-card img{height:168px;width:100%;object-fit:cover;border-radius:0}
.feature-card__body{padding:22px}
.feature-card__body h3{font-size:18px;margin-bottom:8px}
.feature-card__body p{font-size:14px;margin:0}

/* ============ 数据条与口碑 ============ */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
}
.stat b{display:block;font-family:var(--mono);font-size:30px;color:var(--mint)}
.stat span{font-size:13px;color:var(--text-3)}
.quote{height:100%;display:flex;flex-direction:column}
.quote p{font-size:15px;color:var(--text-2);margin-bottom:18px}
.quote__who{display:flex;align-items:center;gap:12px;margin-top:auto}
.quote__avatar{
  width:42px;height:42px;flex:0 0 42px;border-radius:50%;
  display:grid;place-items:center;font-weight:700;color:#06231b;
  background:linear-gradient(140deg,var(--mint),#57c8ff);
}
.quote__who strong{display:block;font-size:14px;color:var(--text)}
.quote__who small{font-size:12px;color:var(--text-3)}

/* ============ 最新信息 ============ */
.news-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card);color:inherit;text-decoration:none;
  transition:transform .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-strong);text-decoration:none}
.news-card__cover{height:170px;width:100%;object-fit:cover;border-radius:0}
.news-card__body{padding:20px;display:flex;flex-direction:column;flex:1}
.news-card__body h3{
  font-size:17px;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__desc{
  font-size:14px;color:var(--text-2);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.news-card__meta time{font-family:var(--mono);font-size:12px;color:var(--text-3)}
.empty-state{
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  border:1px dashed var(--line-strong);border-radius:var(--r-card);
  background:var(--glass);color:var(--text-2);text-align:center;padding:24px;
}
.empty-state i{font-size:26px;color:var(--text-3)}

/* ============ 咨询表单 ============ */
.form-panel{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card);
}
.field{margin-bottom:18px}
.field__label{display:block;font-size:13px;color:var(--text-2);margin-bottom:7px}
.field__label i{color:var(--orange);font-style:normal;margin-left:3px}
.field input[type=text],.field input[type=tel],.field input[type=email],.field select,.field textarea{
  width:100%;height:44px;padding:0 14px;color:var(--text);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:var(--r-btn);outline:none;transition:all .2s ease;
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;line-height:1.7;resize:vertical}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);background-position:calc(100% - 18px) 19px,calc(100% - 13px) 19px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--mint);outline:2px solid var(--mint);outline-offset:2px;
}
.field.has-error input,.field.has-error select,.field.has-error textarea{
  border-color:var(--orange);box-shadow:0 0 0 1px rgba(255,122,69,.5);
}
.field__tip{display:none;font-size:12px;color:var(--orange);margin-top:6px}
.field.has-error .field__tip{display:block}
.checkbox{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2)}
.checkbox input{width:18px;height:18px;margin-top:4px;accent-color:var(--mint)}
.form-status{display:none;margin-top:16px;border-radius:var(--r-btn);padding:12px 16px;font-size:14px}
.form-status.is-success{display:block;background:var(--mint-soft);border:1px solid rgba(47,227,176,.42);color:var(--mint)}
.form-status.is-error{display:block;background:rgba(255,122,69,.12);border:1px solid rgba(255,122,69,.42);color:var(--orange)}
.form-side h3{font-size:19px;margin-bottom:10px}
.form-side ul{display:grid;gap:12px;margin-top:20px}
.form-side li{display:flex;gap:10px;font-size:14px;color:var(--text-2)}
.form-side li i{color:var(--mint);margin-top:6px}

/* ============ FAQ ============ */
.faq{display:grid;gap:12px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  background:var(--glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  transition:border-color .22s ease;
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.is-open{border-color:rgba(47,227,176,.42)}
.faq-q{
  width:100%;min-height:55px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 22px;background:transparent;border:0;color:var(--text);
  font-size:16px;font-weight:700;text-align:left;cursor:pointer;
  border-left:3px solid transparent;transition:all .22s ease;
}
.faq-q:hover{background:rgba(255,255,255,.03)}
.faq-item.is-open .faq-q{border-left-color:var(--mint);color:var(--mint)}
.faq-q i{color:var(--text-3);transition:transform .3s ease}
.faq-item.is-open .faq-q i{transform:rotate(180deg);color:var(--mint)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .33s ease}
.faq-a p{padding:0 22px 20px;margin:0;font-size:15px;color:var(--text-2)}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid rgba(47,227,176,.28);padding:44px 38px;
  background:linear-gradient(120deg,rgba(47,227,176,.14),rgba(154,140,255,.08) 60%,transparent),var(--panel);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
}
.cta-band h2{margin-bottom:8px;font-size:26px}
.cta-band p{margin:0;font-size:15px}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--line);background:var(--bg-2);padding:64px 0 0;margin-top:0}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text)}
.footer-col p{font-size:14px;margin-bottom:10px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:var(--text-2);font-size:14px}
.footer-col a:hover{color:var(--mint)}
.footer-bottom{
  margin-top:44px;border-top:1px solid var(--line);
  padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
}
.footer-bottom p{margin:0;font-size:13px;color:var(--text-3)}

/* ============ Foundation 覆盖 ============ */
.button{
  border-radius:var(--r-btn);background:var(--mint);color:#06231b;
  font-weight:700;box-shadow:var(--shadow-btn);
}
.button:hover{background:#4cecc0;color:#06231b}
.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x>.cell{width:calc(100% - 24px);margin-left:12px;margin-right:12px}
.grid-margin-y{margin-top:-12px}
.grid-margin-y>.cell{margin-top:12px}
table{border-collapse:separate;border-spacing:0;width:100%}
table th,table td{border:1px solid var(--line);background:transparent;color:var(--text-2);font-size:14px}
table th{color:var(--text);background:rgba(255,255,255,.03)}
.reveal{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card)}
[data-whatintent="mouse"] a:focus{outline:none}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  :root{--sect:64px}
  .side-nav{
    transform:translateX(-100%);transition:transform .3s ease;
    width:290px;padding-top:22px;
  }
  .side-nav.is-open{transform:translateX(0)}
  .content-wrap{margin-left:0}
  .mobile-topbar{display:flex}
  .side-nav__link{font-size:16px;padding:14px 12px}
  .hero{padding:64px 0 72px}
  .hero__badge{position:static;margin-top:30px;text-align:left;display:inline-block}
  .stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  :root{--sect:56px}
  .container{padding:0 18px}
  .grid-margin-x{margin-left:-8px;margin-right:-8px}
  .grid-margin-x>.cell{width:calc(100% - 16px);margin-left:8px;margin-right:8px}
  .hero__facts{gap:20px}
  .plan.is-featured{transform:none}
  .plan.is-featured:hover{transform:translateY(-4px)}
  .cta-band{padding:32px 22px}
}
@media (max-width:640px){
  :root{--sect:48px}
  body{font-size:15px}
  h1{font-size:30px}
  h2{font-size:23px}
  .ladder{padding-left:28px}
  .ladder-item::before{left:-25px;top:26px}
  .hero__actions .btn{width:100%}
  .stats{grid-template-columns:1fr;gap:14px}
  .card,.form-panel{padding:20px}
  .faq-q{padding:14px 16px;font-size:15px}
  .faq-a p{padding:0 16px 18px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --bg:#0B0A12;
  --bg-2:#120F1C;
  --panel:#171325;
  --mint:#2FE3B0;
  --mint-soft:rgba(47,227,176,.08);
  --orange:#FF7A45;
  --violet:#9A8CFF;
  --text:#F2F0FA;
  --text-2:#DDD8EC;
  --muted:#A9A3BE;
  --dim:#6F6A85;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.05);
  --r-card:16px;
  --r-btn:10px;
  --r-input:10px;
  --r-badge:999px;
  --r-img:12px;
  --shadow-card:0 18px 40px -18px rgba(0,0,0,.7);
  --shadow-glow:0 10px 30px -8px rgba(47,227,176,.45);
  --nav-w:240px;
  --maxw:1280px;
  --read:800px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img)}
a{color:var(--mint);text-decoration:none;text-decoration-thickness:1px;text-underline-offset:3px;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:#63efc9}
h1,h2,h3,h4{font-weight:700;color:var(--text);letter-spacing:.2px}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0}
button{font-family:inherit}
::selection{background:rgba(47,227,176,.28);color:#fff}
.mono{font-family:ui-monospace,"SFMono-Regular","JetBrains Mono",Inter,Consolas,monospace;font-variant-numeric:tabular-nums}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* Foundation 默认外观覆盖 */
body,html{background:var(--bg)}
.button{
  background-color:var(--mint);color:#08120F;border-radius:var(--r-btn);
  font-family:inherit;font-weight:600;transition:all .22s ease;
}
.button:hover,.button:focus{background-color:#4beabf;color:#08120F}
input,select,textarea{font-family:inherit;font-size:15px;border-radius:var(--r-input);background:#100D1A;border:1px solid var(--line);color:var(--text);box-shadow:none}
input:focus,select:focus,textarea:focus{outline:2px solid var(--mint);outline-offset:2px;border-color:var(--mint)}
table{border-collapse:collapse}

/* ============ 左侧竖向导航 ============ */
.side-nav{
  position:fixed;top:0;left:0;width:var(--nav-w);height:100vh;
  display:flex;flex-direction:column;gap:20px;
  padding:26px 16px 22px;
  background:var(--bg-2);
  border-right:1px solid var(--line);
  overflow-y:auto;z-index:80;
}
.side-nav__brand{padding:0 6px 18px;border-bottom:1px solid var(--line)}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none}
.brand:hover{color:var(--text)}
.brand__mark{
  width:36px;height:36px;border-radius:10px;
  background:var(--mint);color:#08120F;
  display:grid;place-items:center;font-weight:800;font-size:17px;
  box-shadow:var(--shadow-glow);flex:0 0 auto;
}
.brand__text{font-size:16px;font-weight:700;color:var(--text);letter-spacing:.4px}
.brand__slogan{margin:12px 0 0;font-size:12px;color:var(--dim);line-height:1.7}
.side-nav__menu{display:flex;flex-direction:column;gap:6px}
.side-nav__link{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:11px 12px;border-radius:var(--r-btn);
  font-size:15px;color:var(--muted);text-decoration:none;
  transition:transform .2s ease,background-color .2s ease,color .2s ease;
}
.side-nav__link i{width:18px;text-align:center;font-size:14px;color:var(--dim);transition:color .2s ease}
.side-nav__link:hover{color:var(--text);background:rgba(255,255,255,.04);transform:translateX(2px)}
.side-nav__link:hover i{color:var(--mint)}
.side-nav__link:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
.side-nav__link.is-active{
  color:var(--text);background:var(--mint-soft);
  box-shadow:inset 3px 0 0 var(--mint);
}
.side-nav__link.is-active i{color:var(--mint)}
.side-nav__cta{margin-top:4px}
.side-nav__foot{margin-top:auto;padding:16px 12px 0;border-top:1px solid var(--line);font-size:12px;color:var(--dim);line-height:1.9}
.side-nav__foot p{margin:0 0 6px;display:flex;gap:8px;align-items:flex-start}
.side-nav__foot i{color:var(--violet);margin-top:4px;font-size:11px}

/* 顶栏（移动端） */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:90;
  align-items:center;justify-content:space-between;
  padding:0 16px;background:rgba(11,10,18,.86);
  border-bottom:1px solid transparent;transition:border-color .25s ease,backdrop-filter .25s ease;
}
.topbar.is-scrolled{border-bottom-color:var(--line);backdrop-filter:blur(16px);background:rgba(11,10,18,.92)}
.topbar__toggle{
  width:42px;height:42px;border-radius:var(--r-btn);
  background:var(--glass);border:1px solid var(--line);color:var(--text);
  font-size:17px;cursor:pointer;transition:all .2s ease;
}
.topbar__toggle:hover{border-color:var(--mint);color:var(--mint)}
.topbar__toggle:focus-visible{outline:2px solid var(--mint);outline-offset:2px}

.page{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column}

/* 公告条 */
.ticker{
  height:40px;display:flex;align-items:center;
  background:rgba(47,227,176,.06);
  border-bottom:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.ticker__inner{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:16px;overflow:hidden;white-space:nowrap}
.ticker__dot{width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(47,227,176,.16);flex:0 0 auto}
.ticker b{color:var(--mint)}
.ticker .sep{color:var(--dim)}

.main{flex:1;padding:34px 0 0}

/* 面包屑 */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dim);margin-bottom:22px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--mint)}
.breadcrumb .sep{color:var(--dim)}
.breadcrumb .current{color:var(--dim);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章布局 ============ */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:36px;align-items:start}
.article{
  background:var(--glass);
  backdrop-filter:blur(16px);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  padding:36px 40px 44px;
  min-width:0;
}
.article__head{padding-bottom:20px;border-bottom:1px solid var(--line)}
.article__head h1{font-size:clamp(26px,3.2vw,40px);line-height:1.28;margin:14px 0 18px}
.meta-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;font-size:13px;color:var(--dim)}
.meta-bar span{display:inline-flex;align-items:center;gap:6px}
.meta-bar i{color:var(--mint);font-size:12px}

.article-body{padding-top:26px;max-width:var(--read);font-size:16px;line-height:1.9;color:var(--text-2)}
.article-body h2{
  font-size:clamp(20px,2.2vw,26px);line-height:1.35;
  margin:40px 0 14px;padding-left:14px;
  border-left:3px solid var(--mint);color:var(--text);
}
.article-body h3{font-size:20px;line-height:1.45;margin:30px 0 12px;color:var(--text)}
.article-body p{margin:0 0 1.2em}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.4em}
.article-body li{margin:0 0 .6em}
.article-body ul li::marker{color:var(--mint)}
.article-body ol li::marker{color:var(--violet);font-weight:700}
.article-body blockquote{
  margin:26px 0;padding:16px 22px;
  border-left:3px solid var(--violet);
  background:rgba(154,140,255,.07);
  border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{margin:22px 0;border:1px solid var(--line)}
.article-body a{color:var(--mint);text-decoration:underline}
.article-body a:hover{color:#63efc9}
.article-body strong{color:#fff}
.article-body table{width:100%;margin:24px 0;font-size:14px}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
.article-body th{background:rgba(255,255,255,.04);color:var(--text);font-weight:600}
.article-body tr:hover td{background:rgba(255,255,255,.02)}
.article-body code{
  font-family:ui-monospace,"SFMono-Regular",Consolas,monospace;
  font-size:14px;color:#8ef0d2;background:rgba(255,255,255,.06);
  padding:2px 7px;border-radius:6px;
}
.article-body pre{
  margin:24px 0;padding:18px;overflow:auto;
  background:#0D0B15;border:1px solid var(--line);border-radius:var(--r-img);
}
.article-body pre code{background:none;padding:0;color:var(--text-2)}

/* 空状态 */
.empty-state{
  text-align:center;padding:64px 24px;
  border:1px dashed var(--line-strong);border-radius:var(--r-card);
  background:rgba(255,255,255,.02);
}
.empty-state i{font-size:34px;color:var(--violet)}
.empty-state h2{font-size:22px;margin:18px 0 10px}
.empty-state p{color:var(--muted);max-width:540px;margin:0 auto 24px}

/* 标签组 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--r-badge);font-size:13px;color:var(--muted);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:all .2s ease;
}
.tag:hover{color:var(--mint);border-color:rgba(47,227,176,.4);background:var(--mint-soft);transform:translateY(-1px)}

/* 上下篇 */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px}
.post-nav a{
  display:block;padding:16px 18px;min-height:84px;
  border:1px solid var(--line);border-radius:var(--r-img);
  background:rgba(255,255,255,.02);color:var(--muted);font-size:14px;
  transition:all .22s ease;
}
.post-nav a:hover{border-color:var(--line-strong);color:var(--text);transform:translateY(-2px);background:rgba(255,255,255,.045)}
.post-nav .pn-label{display:block;font-size:12px;color:var(--dim);margin-bottom:8px}
.post-nav .pn-next{text-align:right}

/* 右侧粘性栏 */
.article-side{position:sticky;top:24px;display:flex;flex-direction:column;gap:18px}
.side-card{
  background:var(--glass);backdrop-filter:blur(16px);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--shadow-card);
}
.side-card__title{font-size:14px;margin:0 0 14px;padding-bottom:12px;border-bottom:1px solid var(--line);color:var(--text)}
.side-links{list-style:none;margin:0;padding:0}
.side-links li{margin-bottom:10px}
.side-links li:last-child{margin-bottom:0}
.side-links a{display:flex;gap:10px;align-items:baseline;font-size:14px;color:var(--muted);line-height:1.6;transition:all .2s ease}
.side-links a:hover{color:var(--mint);transform:translateX(2px)}
.side-links .num{
  font-family:ui-monospace,Consolas,monospace;font-size:12px;
  color:var(--violet);flex:0 0 auto;
}
.side-card--cta{border-color:rgba(47,227,176,.28);background:var(--mint-soft)}
.side-card--cta p{font-size:13px;color:var(--muted);margin:0 0 14px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;text-decoration:none;transition:all .22s ease;
}
.btn--primary{background:var(--mint);color:#08120F;box-shadow:var(--shadow-glow)}
.btn--primary:hover{background:#4beabf;color:#08120F;transform:translateY(-1px);box-shadow:0 14px 34px -8px rgba(47,227,176,.6)}
.btn--primary:active{transform:translateY(1px)}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn--ghost:hover{border-color:var(--mint);color:var(--mint);background:var(--mint-soft)}
.btn--ghost:active{transform:translateY(1px)}
.btn--block{display:flex;width:100%}
.btn:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
.btn--text{height:auto;padding:0;background:none;border:0;color:var(--mint);font-weight:600}
.btn--text i{transition:transform .2s ease}
.btn--text:hover i{transform:translateX(4px)}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;
  border-radius:var(--r-badge);font-size:12px;line-height:1;border:1px solid transparent;
}
.badge--violet{background:rgba(154,140,255,.14);color:#b7adff;border-color:rgba(154,140,255,.32)}
.badge--orange{background:rgba(255,122,69,.14);color:#ff9f74;border-color:rgba(255,122,69,.32)}
.badge--mint{background:rgba(47,227,176,.14);color:#6ff3cc;border-color:rgba(47,227,176,.32)}

/* 相关推荐 */
.related{margin-top:52px}
.section-head{margin-bottom:24px}
.section-head h2{font-size:clamp(20px,2.2vw,26px);margin:0 0 8px}
.section-head p{color:var(--muted);font-size:14px;margin:0}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.card{
  display:flex;flex-direction:column;
  background:var(--glass);backdrop-filter:blur(16px);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px;box-shadow:var(--shadow-card);transition:all .25s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 22px 46px -18px rgba(0,0,0,.78)}
.card__thumb{aspect-ratio:16/10;border-radius:var(--r-img);overflow:hidden;margin-bottom:14px;background:#0F0D18}
.card__thumb img{width:100%;height:100%;object-fit:cover;border-radius:0}
.card h3{
  font-size:17px;line-height:1.5;margin:0 0 10px;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card h3 a{color:inherit;text-decoration:none}
.card h3 a:hover{color:var(--mint)}
.card p{
  font-size:14px;color:var(--muted);margin:0 0 16px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12px;color:var(--dim)}

/* 底部 CTA 条 */
.cta-bar{
  margin-top:52px;padding:28px 32px;border-radius:var(--r-card);
  border:1px solid rgba(47,227,176,.28);
  background:var(--mint-soft);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
}
.cta-bar h2{font-size:22px;margin:0 0 8px}
.cta-bar p{margin:0;color:var(--muted);font-size:14px;max-width:640px}
.cta-bar__actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:72px;padding:54px 0 24px;
  background:#0D0B15;border-top:1px solid var(--line);
}
.footer-col h4{font-size:15px;margin:0 0 14px;color:var(--text)}
.footer-col p{color:var(--muted);font-size:14px;margin:0 0 8px;line-height:1.8}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:10px}
.footer-col li:last-child{margin-bottom:0}
.footer-col a{color:var(--muted);font-size:14px;transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-col a:hover{color:var(--mint);transform:translateX(2px)}
.site-footer .brand{margin-bottom:6px}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  color:var(--dim);font-size:13px;
}
.footer-bottom p{margin:0}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .article{padding:30px 28px 36px}
  .article-layout{gap:26px;grid-template-columns:minmax(0,1fr) 264px}
}
@media (max-width:1024px){
  .side-nav{
    transform:translateX(-100%);
    transition:transform .28s ease;
    box-shadow:0 0 60px rgba(0,0,0,.6);
    width:280px;
  }
  .side-nav.is-open{transform:translateX(0)}
  .page{margin-left:0;padding-top:60px}
  .topbar{display:flex}
  .main{padding-top:26px}
  .article-layout{grid-template-columns:1fr}
  .article-side{display:none}
  .article{padding:26px 22px 32px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ticker__inner{padding:0 16px}
  .container{padding:0 18px}
}
@media (max-width:640px){
  body{font-size:15px}
  .article{padding:22px 16px 26px;border-radius:14px}
  .article__head h1{font-size:26px}
  .meta-bar{gap:8px 16px;font-size:12px}
  .card-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .post-nav .pn-next{text-align:left}
  .cta-bar{padding:22px 18px}
  .cta-bar__actions .btn{width:100%}
  .footer-bottom{flex-direction:column}
  .section-head h2{font-size:22px}
}
@media (max-width:520px){
  .ticker{font-size:12px}
  .ticker .hide-sm{display:none}
  .article-body{font-size:15px}
}

/* roulang page: category1 */
:root{
  --bg:#0B0A12;
  --bg-2:#120F1C;
  --panel:#171325;
  --glass:rgba(255,255,255,.05);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.18);
  --mint:#2FE3B0;
  --orange:#FF7A45;
  --purple:#9A8CFF;
  --text:#F2F0FA;
  --text-2:#A9A3BE;
  --text-3:#6F6A85;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-card:0 18px 40px -18px rgba(0,0,0,.7);
  --shadow-glow:0 10px 30px -8px rgba(47,227,176,.45);
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --mono:ui-monospace,"SFMono-Regular","JetBrains Mono",Consolas,monospace;
  --nav-w:240px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--mint);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
a:hover{color:#63f0c6;}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:700;color:var(--text);line-height:1.3;}
h1{font-size:clamp(30px,4vw,52px);line-height:1.2;}
h2{font-size:clamp(24px,2.6vw,36px);}
h3{font-size:21px;}
p{margin:0 0 1em;}
ul,ol{margin:0 0 1em;padding-left:1.2em;}
p:last-child{margin-bottom:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px;}

.container{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 布局骨架 ---------- */
.app-shell{min-height:100vh;}
.site-wrap{
  margin-left:var(--nav-w);
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

/* ---------- 侧栏 ---------- */
.side-nav{
  position:fixed;
  top:0;
  left:0;
  width:var(--nav-w);
  height:100vh;
  padding:26px 20px 24px;
  background:linear-gradient(180deg,#141020 0%,#0C0A14 100%);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  gap:22px;
  overflow-y:auto;
  z-index:70;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  color:var(--text);
}
.brand__mark{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:10px;
  background:linear-gradient(140deg,var(--mint),#1FA987);
  color:#06110D;
  font-weight:700;
  font-size:18px;
  font-family:var(--mono);
  box-shadow:var(--shadow-glow);
}
.brand__text{
  font-size:18px;
  font-weight:700;
  letter-spacing:.4px;
}
.side-nav__tagline{
  margin:10px 0 0;
  font-size:13px;
  color:var(--text-3);
  letter-spacing:.5px;
}
.side-nav__menu{
  display:flex;
  flex-direction:column;
  gap:4px;
  border-top:1px solid var(--line);
  padding-top:18px;
}
.side-nav__link{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  padding:12px 12px 12px 14px;
  border-radius:10px;
  color:var(--text-2);
  font-size:15px;
  text-decoration:none;
  transition:background .22s ease,color .22s ease,transform .22s ease;
}
.side-nav__link i{width:18px;text-align:center;font-size:14px;color:var(--text-3);transition:color .22s ease;}
.side-nav__link::before{
  content:"";
  position:absolute;
  left:0;top:8px;bottom:8px;
  width:3px;
  border-radius:3px;
  background:transparent;
  transition:background .22s ease;
}
.side-nav__link:hover{
  color:var(--text);
  background:rgba(255,255,255,.04);
  transform:translateX(2px);
}
.side-nav__link:hover i{color:var(--mint);}
.side-nav__link.is-active{
  color:var(--text);
  background:rgba(47,227,176,.08);
}
.side-nav__link.is-active::before{background:var(--mint);}
.side-nav__link.is-active i{color:var(--mint);}
.side-nav__cta{margin-top:auto;}
.side-nav__info{
  border-top:1px solid var(--line);
  padding-top:16px;
  font-size:13px;
  color:var(--text-3);
}
.side-nav__info p{margin:0 0 6px;display:flex;gap:8px;align-items:flex-start;}
.side-nav__info i{margin-top:5px;color:var(--purple);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  min-height:44px;
  border:none;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  text-decoration:none;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn--primary{
  background:var(--mint);
  color:#06110D;
  box-shadow:var(--shadow-glow);
}
.btn--primary:hover{
  background:#45eec0;
  color:#06110D;
  box-shadow:0 14px 36px -8px rgba(47,227,176,.55);
  transform:translateY(-2px);
}
.btn--primary:active{transform:translateY(1px);box-shadow:0 6px 18px -8px rgba(47,227,176,.5);}
.btn--ghost{
  background:transparent;
  color:var(--text);
  border:1px solid var(--line-strong);
}
.btn--ghost:hover{
  border-color:var(--mint);
  color:var(--mint);
  transform:translateY(-2px);
}
.btn--ghost:active{transform:translateY(1px);}
.btn--block{width:100%;}
.btn--text{
  background:none;
  color:var(--mint);
  padding:6px 0;
  min-height:auto;
  gap:6px;
}
.btn--text i{transition:transform .2s ease;}
.btn--text:hover{color:#63f0c6;}
.btn--text:hover i{transform:translateX(4px);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:24px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.3px;
  line-height:1;
}
.badge--cat{background:rgba(154,140,255,.16);color:var(--purple);border:1px solid rgba(154,140,255,.3);}
.badge--limit{background:rgba(255,122,69,.16);color:var(--orange);border:1px solid rgba(255,122,69,.32);}
.badge--rec{background:rgba(47,227,176,.14);color:var(--mint);border:1px solid rgba(47,227,176,.3);}

/* ---------- 移动端顶栏 ---------- */
.mobile-topbar{
  display:none;
  position:sticky;
  top:0;
  z-index:60;
  height:60px;
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  background:rgba(12,10,20,.86);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.mobile-topbar .brand__mark{width:32px;height:32px;font-size:16px;}
.mobile-topbar .brand__text{font-size:16px;}
.nav-toggle{
  width:44px;height:44px;
  display:grid;place-items:center;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:10px;
  color:var(--text);
  cursor:pointer;
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:var(--mint);color:var(--mint);}
.drawer-mask{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(4,3,8,.7);
  z-index:65;
}
.drawer-mask.is-open{display:block;}

/* ---------- 公告条 ---------- */
.ticker{
  height:40px;
  display:flex;
  align-items:center;
  gap:16px;
  padding:0 24px;
  background:var(--bg-2);
  border-bottom:1px solid var(--line);
  font-size:13px;
  color:var(--text-2);
  overflow:hidden;
}
.ticker__label{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--orange);
  font-weight:600;
}
.ticker__track{
  flex:1;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.ticker__clock{
  flex:0 0 auto;
  font-family:var(--mono);
  color:var(--mint);
  letter-spacing:.6px;
}

/* ---------- 主体 ---------- */
.site-main{flex:1 0 auto;padding-bottom:0;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  min-height:260px;
  display:flex;
  align-items:center;
  background-image:linear-gradient(90deg,rgba(11,10,18,.96) 0%,rgba(11,10,18,.72) 52%,rgba(11,10,18,.42) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero__inner{
  padding:46px 0;
  max-width:760px;
}
.page-hero h1{
  margin:14px 0 14px;
  font-size:clamp(30px,3.4vw,44px);
}
.page-hero__lead{
  color:var(--text-2);
  font-size:17px;
  max-width:660px;
  margin-bottom:22px;
}
.page-hero__actions{display:flex;flex-wrap:wrap;gap:12px;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin:0;
  padding:0;
  list-style:none;
}
.breadcrumb a{color:var(--text-2);text-decoration:none;}
.breadcrumb a:hover{color:var(--mint);text-decoration:underline;}
.breadcrumb li:last-child{color:var(--text-3);}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:1.4px;
  color:var(--purple);
  text-transform:uppercase;
  margin-bottom:12px;
}
.section-head p{color:var(--text-2);}

/* ---------- 图文交替 ---------- */
.flow-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
  padding:44px 0;
  border-top:1px solid var(--line);
}
.flow-row:first-of-type{border-top:none;padding-top:0;}
.flow-row--reverse .flow-row__media{order:2;}
.flow-row--reverse .flow-row__body{order:1;}
.flow-row__media{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  background:var(--panel);
}
.flow-row__media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:0;
  transition:transform .5s ease;
}
.flow-row__media:hover img{transform:scale(1.03);}
.flow-row__num{
  position:absolute;
  top:14px;
  left:14px;
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:10px;
  background:rgba(12,10,20,.72);
  border:1px solid rgba(47,227,176,.4);
  color:var(--mint);
  font-family:var(--mono);
  font-size:14px;
  backdrop-filter:blur(8px);
}
.flow-row__body h2{font-size:clamp(21px,2vw,26px);margin-bottom:14px;}
.flow-row__body p{color:var(--text-2);}
.flow-row__list{list-style:none;padding:0;margin:18px 0 0;}
.flow-row__list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  padding:8px 0;
  color:var(--text-2);
  font-size:15px;
}
.flow-row__list i{color:var(--mint);margin-top:6px;font-size:12px;}

/* ---------- 要点清单 ---------- */
.checklist{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:16px;
}
.checklist__item{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:20px 22px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.checklist__item:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-card);
}
.checklist__idx{
  flex:0 0 auto;
  width:30px;height:30px;
  display:grid;place-items:center;
  border-radius:9px;
  background:rgba(154,140,255,.14);
  border:1px solid rgba(154,140,255,.3);
  color:var(--purple);
  font-family:var(--mono);
  font-size:13px;
}
.checklist__text{font-size:15px;color:var(--text-2);line-height:1.75;}
.checklist__text strong{display:block;color:var(--text);font-size:15px;margin-bottom:2px;}

/* ---------- FAQ ---------- */
.faq{max-width:880px;}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--glass);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .25s ease;
}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item summary{
  position:relative;
  min-height:55px;
  display:flex;
  align-items:center;
  padding:14px 56px 14px 22px;
  cursor:pointer;
  font-weight:600;
  font-size:16px;
  list-style:none;
  color:var(--text);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";
  position:absolute;
  left:0;top:12px;bottom:12px;
  width:3px;
  border-radius:3px;
  background:transparent;
  transition:background .25s ease;
}
.faq-item summary::after{
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  right:22px;
  font-size:12px;
  color:var(--text-3);
  transition:transform .28s ease,color .28s ease;
}
.faq-item[open] summary{color:var(--mint);}
.faq-item[open] summary::before{background:var(--mint);}
.faq-item[open] summary::after{transform:rotate(180deg);color:var(--mint);}
.faq-item__body{
  padding:0 22px 20px 22px;
  color:var(--text-2);
  font-size:15px;
  border-top:1px dashed var(--line);
  margin-top:0;
  padding-top:16px;
}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 88px;}
.cta-band__inner{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-card);
  border:1px solid rgba(47,227,176,.28);
  background:
    radial-gradient(120% 160% at 8% 0%,rgba(47,227,176,.18) 0%,rgba(47,227,176,0) 55%),
    linear-gradient(135deg,#171325 0%,#120F1C 100%);
  padding:48px;
  display:grid;
  grid-template-columns:1.5fr 1fr;
  gap:36px;
  align-items:center;
  box-shadow:var(--shadow-card);
}
.cta-band h2{margin-bottom:12px;font-size:clamp(22px,2.2vw,30px);}
.cta-band p{color:var(--text-2);margin:0;}
.cta-band__actions{display:flex;flex-direction:column;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#0A0811;
  border-top:1px solid var(--line);
  padding:64px 0 0;
  margin-top:auto;
}
.footer-col{font-size:14px;color:var(--text-2);}
.footer-col h4{
  font-size:15px;
  color:var(--text);
  margin-bottom:16px;
  letter-spacing:.3px;
}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{
  color:var(--text-2);
  text-decoration:none;
  transition:color .2s ease,padding-left .2s ease;
}
.footer-col a:hover{color:var(--mint);padding-left:4px;}
.footer-col p{color:var(--text-3);font-size:14px;}
.footer-bottom{
  margin-top:48px;
  padding:22px 0;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom p{margin:0;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .side-nav{
    transform:translateX(-100%);
    transition:transform .3s ease;
    width:290px;
    box-shadow:0 0 60px rgba(0,0,0,.6);
  }
  .side-nav.is-open{transform:translateX(0);}
  .site-wrap{margin-left:0;}
  .mobile-topbar{display:flex;}
  .section{padding:64px 0;}
  .section--tight{padding:52px 0;}
  .flow-row{gap:32px;padding:36px 0;}
  .cta-band__inner{grid-template-columns:1fr;padding:36px;}
  .cta-band__actions{flex-direction:row;flex-wrap:wrap;}
  .cta-band{padding-bottom:64px;}
}
@media (max-width:768px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:30px;}
  .flow-row{grid-template-columns:1fr;gap:20px;padding:30px 0;}
  .flow-row--reverse .flow-row__media{order:1;}
  .flow-row--reverse .flow-row__body{order:2;}
  .checklist{grid-template-columns:1fr;}
  .page-hero{min-height:auto;}
  .page-hero__inner{padding:36px 0;}
  .page-hero__lead{font-size:15.5px;}
  .ticker{padding:0 16px;}
  .cta-band{padding-bottom:48px;}
  .footer-bottom{margin-top:34px;}
}
@media (max-width:520px){
  .page-hero__actions .btn{width:100%;}
  .cta-band__actions{flex-direction:column;}
  .cta-band__actions .btn{width:100%;}
  .checklist__item{padding:16px;}
  .cta-band__inner{padding:26px;}
  .brand__text{font-size:16px;}
}

/* roulang page: category2 */
:root{
  --bg:#0B0A12;
  --bg-2:#120F1C;
  --panel:#171325;
  --mint:#2FE3B0;
  --orange:#FF7A45;
  --purple:#9A8CFF;
  --text:#F2F0FA;
  --text-2:#A9A3BE;
  --text-3:#6F6A85;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.05);
  --r-card:16px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-card:0 18px 40px -18px rgba(0,0,0,.7);
  --sh-mint:0 10px 30px -8px rgba(47,227,176,.45);
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Courier New",monospace;
  --sans:"PingFang SC","Microsoft YaHei","Source Han Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--mint);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#5BF0C4}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);letter-spacing:.2px}
h1{font-size:clamp(30px,4vw,52px);line-height:1.2}
h2{font-size:clamp(24px,2.6vw,36px);line-height:1.3}
h3{font-size:20px;line-height:1.45}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px;border-radius:6px}

/* ---------- 布局骨架 ---------- */
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.layout{display:block}
.content{margin-left:240px;min-height:100vh;display:flex;flex-direction:column}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--flush{padding-top:0}
.section__head{max-width:800px;margin-bottom:40px}
.section__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:1.4px;color:var(--mint);
  text-transform:uppercase;margin-bottom:14px;font-weight:600;
}
.section__eyebrow::before{content:"";width:22px;height:2px;background:var(--mint);border-radius:2px}
.section__desc{color:var(--text-2);margin-top:14px;max-width:760px}

/* ---------- 左侧导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:240px;z-index:60;
  background:linear-gradient(180deg,#130F1E 0%,#0C0A14 100%);
  border-right:1px solid var(--line);
  padding:26px 18px 22px;
  display:flex;flex-direction:column;gap:22px;overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:10px}
.brand__mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:10px;
  background:linear-gradient(140deg,#2FE3B0,#9A8CFF);
  color:#08110D;font-weight:800;font-size:18px;
  display:grid;place-items:center;
}
.brand__text{font-weight:700;font-size:17px;color:var(--text);letter-spacing:.4px}
.side-nav__menu{display:flex;flex-direction:column;gap:6px;margin:0;padding:0}
.side-nav__link{
  display:flex;align-items:center;gap:10px;
  padding:11px 12px;border-radius:10px;
  color:var(--text-2);font-size:15px;
  border-left:3px solid transparent;
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.side-nav__link i{width:18px;text-align:center;color:var(--text-3);font-size:14px;transition:color .2s ease}
.side-nav__link:hover{color:var(--text);background:rgba(255,255,255,.04);transform:translateX(2px)}
.side-nav__link:hover i{color:var(--mint)}
.side-nav__link.is-active{
  color:var(--text);background:rgba(47,227,176,.08);
  border-left-color:var(--mint);
}
.side-nav__link.is-active i{color:var(--mint)}
.side-nav__cta{margin-top:2px}
.side-nav__foot{
  margin-top:auto;padding-top:18px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);line-height:1.9;
}
.side-nav__foot strong{display:block;color:var(--text-2);font-size:13px;font-weight:600;margin-bottom:6px}
.side-nav__foot span{display:block;font-family:var(--mono);color:var(--mint);font-size:13px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  text-align:center;
}
.btn--primary{background:var(--mint);color:#07110D;box-shadow:var(--sh-mint)}
.btn--primary:hover{background:#4DEBBD;color:#07110D;box-shadow:0 12px 36px -8px rgba(47,227,176,.55);transform:translateY(-2px)}
.btn--primary:active{transform:translateY(1px)}
.btn--ghost{background:transparent;color:var(--text);border-color:var(--line-strong)}
.btn--ghost:hover{color:var(--mint);border-color:var(--mint);background:rgba(47,227,176,.07);transform:translateY(-2px)}
.btn--ghost:active{transform:translateY(1px)}
.btn--block{width:100%}
.btn--sm{height:40px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.button{background:var(--mint);color:#07110D;border-radius:var(--r-btn);font-weight:600}
.button:hover{background:#4DEBBD;color:#07110D}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--mint);
}
.link-arrow i{transition:transform .22s ease}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.3px;
}
.badge--purple{background:rgba(154,140,255,.16);color:#BEB4FF;border:1px solid rgba(154,140,255,.34)}
.badge--mint{background:rgba(47,227,176,.14);color:#66EFC6;border:1px solid rgba(47,227,176,.32)}
.badge--orange{background:rgba(255,122,69,.16);color:#FFA682;border:1px solid rgba(255,122,69,.36)}

/* ---------- 面包屑 ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--mint)}
.crumbs span.sep{color:var(--text-3)}
.crumbs .current{color:var(--text-3)}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  background-color:#120F1C;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:44px 44px;
  border-bottom:1px solid var(--line);
  padding:56px 0 112px;
}
.cat-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(47,227,176,.16),transparent 68%);
  pointer-events:none;
}
.cat-hero__inner{position:relative;z-index:2;max-width:820px}
.cat-hero h1{margin:6px 0 18px}
.cat-hero h1 em{font-style:normal;color:var(--mint)}
.cat-hero__lead{color:var(--text-2);font-size:17px;max-width:720px}
.cat-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.cat-hero__facts{display:flex;flex-wrap:wrap;gap:22px;margin-top:26px;color:var(--text-3);font-size:13px}
.cat-hero__facts li{display:flex;align-items:center;gap:8px}
.cat-hero__facts i{color:var(--mint);font-size:12px}

/* ---------- 数据条 ---------- */
.metric-bar{
  position:relative;z-index:5;margin-top:-64px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
}
.metric{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--sh-card);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  transition:transform .22s ease,border-color .22s ease;
}
.metric:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.metric__label{font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:8px}
.metric__label i{color:var(--purple)}
.metric__value{
  font-family:var(--mono);font-size:34px;font-weight:700;color:var(--mint);
  letter-spacing:.6px;line-height:1.2;margin-top:8px;
}
.metric__value small{font-size:14px;color:var(--text-2);font-family:var(--sans);font-weight:400;margin-left:6px}
.metric__hint{font-size:13px;color:var(--text-3);margin-top:6px}

/* ---------- 卡片网格 ---------- */
.gift-card{
  height:100%;display:flex;flex-direction:column;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.gift-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 24px 48px -18px rgba(0,0,0,.78)}
.gift-card__media{position:relative;display:block;overflow:hidden}
.gift-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .35s ease}
.gift-card:hover .gift-card__media img{transform:scale(1.04)}
.gift-card__media .badge{position:absolute;top:14px;left:14px}
.gift-card__body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:14px;flex:1}
.gift-card__body h3{font-size:19px}
.gift-card__body>p{color:var(--text-2);font-size:15px}
.meta-list{display:grid;gap:8px;border-top:1px dashed var(--line);padding-top:14px}
.meta-list li{display:flex;justify-content:space-between;gap:12px;font-size:13px}
.meta-list li span{color:var(--text-3)}
.meta-list li strong{color:var(--text);font-weight:600;font-family:var(--mono);font-size:13px}
.gift-card__foot{margin-top:auto;padding-top:4px}

/* ---------- 标签云 ---------- */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--glass);
  color:var(--text-2);font-size:14px;
  transition:transform .2s ease,border-color .2s ease,color .2s ease,background .2s ease;
}
.tag i{font-size:12px;color:var(--purple)}
.tag:hover{transform:translateY(-2px);border-color:rgba(47,227,176,.5);color:var(--text);background:rgba(47,227,176,.08)}
.tag.is-hot{border-color:rgba(255,122,69,.4);color:#FFC1A6}
.tag.is-hot i{color:var(--orange)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.accordion{border:0;background:transparent;margin:0}
.accordion-item{
  border:1px solid var(--line);border-radius:14px;background:var(--glass);
  margin-bottom:12px;overflow:hidden;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  transition:border-color .22s ease;
}
.accordion-item:hover{border-color:var(--line-strong)}
.accordion-item.is-active{border-color:rgba(47,227,176,.42)}
.accordion-title{
  display:flex;align-items:center;height:55px;padding:0 52px 0 20px;
  color:var(--text);font-weight:600;font-size:16px;line-height:1.4;
  background:transparent;border:0;border-left:3px solid transparent;
  transition:background .2s ease,border-color .2s ease,padding .2s ease;
}
.accordion-title:hover{background:rgba(255,255,255,.03)}
.accordion-item.is-active .accordion-title{border-left-color:var(--mint);padding-left:17px}
.accordion-title::before{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  color:var(--mint);transition:transform .25s ease;
}
.accordion-title{position:relative}
.accordion-item.is-active .accordion-title::before{content:"\f068"}
.accordion-content{
  background:transparent;border:0;padding:0 20px 20px 20px;
  color:var(--text-2);font-size:15px;line-height:1.85;
}
.accordion-content p+p{margin-top:10px}

/* ---------- 咨询 CTA ---------- */
.cta-band{
  border-radius:20px;padding:44px;
  background:linear-gradient(135deg,rgba(47,227,176,.14),rgba(154,140,255,.10));
  border:1px solid var(--line);
  display:grid;grid-template-columns:1.5fr auto;gap:28px;align-items:center;
  box-shadow:var(--sh-card);
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px)}
.cta-band p{color:var(--text-2);margin-top:12px;max-width:640px}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px}
.tip-line{
  display:flex;align-items:flex-start;gap:10px;
  margin-top:20px;font-size:13px;color:var(--text-3);
}
.tip-line i{color:var(--mint);margin-top:4px}
.contact-form{
  margin-top:26px;display:grid;grid-template-columns:repeat(2,1fr);gap:16px;
}
.field{display:flex;flex-direction:column;gap:8px}
.field--full{grid-column:1 / -1}
.field label{font-size:13px;color:var(--text-2)}
.field input,.field select,.field textarea{
  height:44px;padding:0 14px;border-radius:var(--r-input);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--text);font-size:15px;font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{height:110px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:2px solid var(--mint);outline-offset:2px;border-color:var(--mint);background:rgba(47,227,176,.05)
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-2) 50%),linear-gradient(135deg,var(--text-2) 50%,transparent 50%);background-position:calc(100% - 20px) 19px,calc(100% - 14px) 19px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2)}
.check-row input{width:16px;height:16px;margin-top:5px;accent-color:var(--mint)}
.form-note{font-size:13px;color:var(--text-3)}
.form-note.is-ok{color:#66EFC6}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:auto;border-top:1px solid var(--line);
  background:linear-gradient(180deg,#0E0C16,#0B0A12);
  padding:64px 0 30px;
}
.site-footer .brand{margin-bottom:6px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text)}
.footer-col p{color:var(--text-2);font-size:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{color:var(--text-2);font-size:14px;position:relative;transition:color .2s ease,padding .2s ease}
.footer-col ul a:hover{color:var(--mint);padding-left:4px}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 26px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:80;
  align-items:center;justify-content:space-between;padding:0 18px;
  background:rgba(11,10,18,.86);border-bottom:1px solid var(--line);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
}
.topbar.is-stuck{background:rgba(11,10,18,.96);border-bottom-color:var(--line-strong)}
.topbar__toggle{
  width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:var(--glass);color:var(--text);font-size:16px;cursor:pointer;
  display:grid;place-items:center;transition:border-color .2s ease,color .2s ease;
}
.topbar__toggle:hover{border-color:var(--mint);color:var(--mint)}
.drawer{
  position:fixed;inset:0;z-index:90;transform:translateX(-100%);
  transition:transform .3s ease;display:flex;flex-direction:column;
  background:linear-gradient(180deg,#130F1E,#0B0A12);
  padding:22px 20px;gap:22px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between}
.drawer__close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:transparent;color:var(--text);font-size:16px;cursor:pointer;
}
.drawer .side-nav__link{font-size:18px;padding:14px 14px}
.drawer__foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,3,9,.72);z-index:85;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .side-nav{display:none}
  .topbar{display:flex}
  .content{margin-left:0;padding-top:60px}
  .container{padding:0 22px}
  .section{padding:64px 0}
  .section--tight{padding:52px 0}
  .cat-hero{padding:40px 0 84px}
  .metric-bar{grid-template-columns:repeat(3,1fr);gap:14px;margin-top:-52px}
  .metric{padding:18px}
  .metric__value{font-size:28px}
  .cta-band{grid-template-columns:1fr;padding:34px}
}
@media screen and (max-width:768px){
  body{font-size:15.5px}
  .section{padding:52px 0}
  .metric-bar{grid-template-columns:1fr;margin-top:-40px}
  .cat-hero{padding:32px 0 72px}
  .cat-hero__actions{gap:10px}
  .cat-hero__actions .btn{width:100%}
  .gift-card__body{padding:18px 18px 20px}
  .contact-form{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media screen and (max-width:520px){
  .container{padding:0 16px}
  .cat-hero h1{font-size:26px}
  .cat-hero__lead{font-size:15px}
  .accordion-title{height:auto;min-height:55px;padding:14px 48px 14px 16px;font-size:15px}
  .accordion-item.is-active .accordion-title{padding-left:13px}
  .cta-band{padding:26px 20px;border-radius:16px}
  .metric__value{font-size:26px}
}

/* roulang page: category3 */
:root{
  --bg:#0B0A12;
  --bg-2:#120F1C;
  --panel:#171325;
  --mint:#2FE3B0;
  --orange:#FF7A45;
  --violet:#9A8CFF;
  --text:#F2F0FA;
  --muted:#A9A3BE;
  --weak:#6F6A85;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.05);
  --radius:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-card:0 18px 40px -18px rgba(0,0,0,.7);
  --shadow-mint:0 10px 30px -8px rgba(47,227,176,.45);
  --sidebar:240px;
  --gap-d:88px;
  --gap-t:64px;
  --gap-m:48px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",Inter,system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--mint);text-decoration:none;text-underline-offset:3px;transition:color .2s ease,opacity .2s ease}
a:hover{color:#63f0c6;text-decoration:underline}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.01em}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.num{font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- 布局骨架 ---------- */
.app-shell{min-height:100vh}
.side-nav{
  position:fixed;top:0;left:0;width:var(--sidebar);height:100vh;
  display:flex;flex-direction:column;gap:22px;
  padding:26px 18px;
  background:linear-gradient(180deg,#151127 0%,#0B0A12 100%);
  border-right:1px solid var(--line);
  overflow-y:auto;z-index:80;
}
.side-nav__brand{display:flex;align-items:center;gap:10px;padding:0 6px 4px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700}
.brand:hover{text-decoration:none;color:var(--text)}
.brand__mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--mint),#1a9c7c);
  color:#06110D;font-weight:700;font-size:17px;
  box-shadow:var(--shadow-mint);
}
.brand__text{font-size:17px;letter-spacing:.01em}
.side-nav__menu{display:flex;flex-direction:column;gap:4px}
.side-nav__link{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:11px 14px;border-radius:var(--radius-btn);
  color:var(--muted);font-size:15px;font-weight:500;
  transition:transform .2s ease,background .2s ease,color .2s ease;
}
.side-nav__link i{width:18px;text-align:center;font-size:14px;opacity:.85}
.side-nav__link:hover{color:var(--text);background:rgba(255,255,255,.045);transform:translateX(2px);text-decoration:none}
.side-nav__link.is-active{
  color:var(--text);background:rgba(47,227,176,.08);
}
.side-nav__link.is-active::before{
  content:"";position:absolute;left:-18px;top:9px;bottom:9px;width:3px;
  border-radius:0 3px 3px 0;background:var(--mint);box-shadow:0 0 14px rgba(47,227,176,.8);
}
.side-nav__link.is-active i{color:var(--mint);opacity:1}
.side-nav__cta{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.side-nav__contact{
  border-top:1px solid var(--line);padding-top:16px;
  font-size:13px;line-height:1.75;color:var(--weak);
}
.side-nav__contact strong{display:block;color:var(--muted);font-weight:600;margin-bottom:4px;font-size:13px}

.site-content{margin-left:var(--sidebar);min-height:100vh;display:flex;flex-direction:column}
.site-main{flex:1}

/* ---------- 公告条 ---------- */
.notice-bar{
  height:40px;display:flex;align-items:center;gap:14px;
  padding:0 24px;font-size:13px;color:var(--muted);
  background:rgba(47,227,176,.06);border-bottom:1px solid var(--line);
  white-space:nowrap;overflow:hidden;
}
.notice-bar__dot{width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px var(--mint);flex:0 0 7px}
.notice-bar__text{overflow:hidden;text-overflow:ellipsis}
.notice-bar__time{margin-left:auto;color:var(--orange);font-weight:600}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;align-items:center;justify-content:space-between;
  height:60px;padding:0 18px;position:sticky;top:0;z-index:90;
  background:rgba(11,10,18,.82);backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:border-color .25s ease,background .25s ease;
}
.topbar.is-stuck{border-bottom-color:var(--line);background:rgba(11,10,18,.94)}
.topbar__toggle{
  width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:var(--glass);color:var(--text);display:grid;place-items:center;cursor:pointer;
}
.topbar__toggle:hover{border-color:var(--line-strong)}
.scrim{
  position:fixed;inset:0;background:rgba(4,3,8,.68);backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;transition:.25s ease;z-index:70;
}
.scrim.is-open{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  border:1px solid transparent;font-weight:600;font-size:15px;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--mint);color:#06110D;box-shadow:var(--shadow-mint)}
.btn--primary:hover{filter:brightness(1.08);box-shadow:0 16px 38px -10px rgba(47,227,176,.6)}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn--ghost:hover{border-color:rgba(47,227,176,.55);color:var(--mint);background:rgba(47,227,176,.06)}
.btn--link{padding:0;height:auto;color:var(--mint);background:none}
.btn--link i{transition:transform .2s ease}
.btn--link:hover i{transform:translateX(4px)}
.btn--block{width:100%}
.btn--sm{height:38px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 11px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;
  background:rgba(154,140,255,.14);color:#BDB2FF;border:1px solid rgba(154,140,255,.3);
}
.badge--mint{background:rgba(47,227,176,.13);color:var(--mint);border-color:rgba(47,227,176,.32)}
.badge--orange{background:rgba(255,122,69,.14);color:var(--orange);border-color:rgba(255,122,69,.34)}
.tag{
  display:inline-block;padding:6px 13px;border-radius:999px;font-size:13px;
  color:var(--muted);background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:.2s ease;
}
.tag:hover{color:var(--text);border-color:var(--line-strong);text-decoration:none}

/* ---------- 通用板块 ---------- */
.section{padding:var(--gap-d) 0}
.section--tight{padding:var(--gap-t) 0}
.section--panel{background:var(--bg-2)}
.section-head{max-width:760px;margin-bottom:42px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--violet);text-transform:uppercase;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--violet);border-radius:2px}
.section-title{font-size:clamp(24px,2.6vw,36px);margin-bottom:14px}
.section-sub{color:var(--muted);font-size:16px;max-width:680px}

.glass{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  backdrop-filter:blur(16px);box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.glass:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 24px 48px -20px rgba(0,0,0,.8)}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;padding:64px 0 68px;
  background-image:linear-gradient(90deg,rgba(11,10,18,.96) 0%,rgba(11,10,18,.78) 45%,rgba(11,10,18,.46) 100%),url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,227,176,.22),transparent 68%);pointer-events:none;
}
.page-hero__inner{max-width:760px;position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--weak);margin-bottom:20px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--mint)}
.crumbs span.sep{color:var(--weak)}
.crumbs .current{color:var(--weak)}
.page-hero h1{font-size:clamp(30px,4vw,52px);line-height:1.2;margin-bottom:18px}
.page-hero h1 em{font-style:normal;color:var(--mint)}
.page-hero__lead{color:var(--muted);font-size:17px;max-width:640px;margin-bottom:26px}
.page-hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:12px}
.hero-metrics__item{
  display:flex;flex-direction:column;gap:2px;padding:12px 18px;border-radius:12px;
  background:rgba(23,19,37,.72);border:1px solid var(--line);
}
.hero-metrics__item b{font-size:18px;color:var(--mint)}
.hero-metrics__item span{font-size:12px;color:var(--weak)}

/* ---------- 时间线 ---------- */
.timeline{position:relative;margin-top:12px}
.timeline__line{
  position:absolute;left:19px;top:14px;bottom:14px;width:2px;
  background:repeating-linear-gradient(180deg,rgba(47,227,176,.55) 0 7px,transparent 7px 14px);
}
.timeline__item{position:relative;padding-left:70px;margin-bottom:26px}
.timeline__item:last-child{margin-bottom:0}
.timeline__dot{
  position:absolute;left:0;top:6px;width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--panel);border:1px solid rgba(47,227,176,.42);
  color:var(--mint);font-weight:700;font-size:15px;font-family:ui-monospace,monospace;
  box-shadow:0 0 22px -6px rgba(47,227,176,.8);
}
.timeline__card{padding:22px 24px}
.timeline__card h3{font-size:20px;margin-bottom:8px}
.timeline__card p{color:var(--muted);font-size:15px}
.timeline__facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.timeline__facts li{
  font-size:13px;color:var(--muted);padding:5px 12px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.timeline__facts li i{color:var(--mint);margin-right:6px;font-size:12px}

/* ---------- 对比表格 ---------- */
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);
  background:rgba(255,255,255,.035);box-shadow:var(--shadow-card);
}
table.compare{width:100%;border-collapse:collapse;min-width:760px}
table.compare th,table.compare td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--line);font-size:15px}
table.compare thead th{
  background:rgba(154,140,255,.09);color:var(--text);font-size:14px;font-weight:600;letter-spacing:.02em;
}
table.compare tbody td{color:var(--muted)}
table.compare tbody td:first-child{color:var(--text);font-weight:600}
table.compare tbody tr:hover{background:rgba(47,227,176,.05)}
table.compare tbody tr:last-child td{border-bottom:0}

/* ---------- 结论卡 ---------- */
.conclusion{
  display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;
  padding:32px;border-radius:var(--radius);
  background:linear-gradient(120deg,rgba(47,227,176,.12),rgba(154,140,255,.08) 60%,rgba(255,255,255,.03));
  border:1px solid rgba(47,227,176,.24);
}
.conclusion h3{font-size:24px;margin-bottom:12px}
.conclusion p{color:var(--muted);font-size:15px}
.conclusion__list{display:flex;flex-direction:column;gap:10px}
.conclusion__list li{
  display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted);
}
.conclusion__list i{color:var(--mint);margin-top:5px}
.check-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 24px;margin-top:24px}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--muted)}
.check-list i{color:var(--mint);margin-top:6px;font-size:13px}

/* ---------- FAQ ---------- */
.accordion{border:0;background:transparent;margin:0}
.accordion-item{
  border:1px solid var(--line);border-radius:var(--radius);
  background:rgba(255,255,255,.04);margin-bottom:12px;overflow:hidden;
  transition:border-color .25s ease,background .25s ease;
}
.accordion-item:hover{border-color:var(--line-strong)}
.accordion-item.is-active{border-color:rgba(47,227,176,.4);background:rgba(47,227,176,.05)}
.accordion-title{
  display:flex;align-items:center;min-height:55px;padding:14px 22px;
  border:0;background:transparent;color:var(--text);font-size:16px;font-weight:600;
}
.accordion-title:hover{background:rgba(255,255,255,.03);text-decoration:none}
.accordion-title::before{color:var(--mint);margin-right:12px}
.accordion-content{padding:0 22px 20px;border:0;background:transparent;color:var(--muted);font-size:15px}
.accordion-item.is-active .accordion-title{color:var(--mint)}

/* ---------- 表单 / CTA ---------- */
.cta-panel{
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start;
  padding:40px;border-radius:var(--radius);
  background:linear-gradient(150deg,#171325,#100D1B 70%);
  border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.cta-panel h2{font-size:clamp(24px,2.4vw,32px);margin-bottom:14px}
.cta-panel p{color:var(--muted);font-size:15px}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field--full{grid-column:1 / -1}
.field label{font-size:13px;color:var(--muted);font-weight:600}
.field input,.field select,.field textarea{
  width:100%;min-height:44px;padding:11px 14px;border-radius:var(--radius-btn);
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text);
  font-size:15px;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{min-height:110px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--weak)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:2px solid var(--mint);outline-offset:2px;border-color:var(--mint);background:rgba(47,227,176,.05);
}
.field select option{background:var(--panel);color:var(--text)}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--orange);box-shadow:0 0 0 1px rgba(255,122,69,.35)}
.field__error{font-size:12px;color:var(--orange);display:none}
.field.has-error .field__error{display:block}
.form-note{font-size:12px;color:var(--weak);display:flex;align-items:flex-start;gap:8px}
.form-note input{width:16px;height:16px;min-height:16px;margin-top:3px;accent-color:var(--mint)}
.form-success{
  display:none;margin-bottom:16px;padding:12px 16px;border-radius:var(--radius-btn);
  background:rgba(47,227,176,.1);border:1px solid rgba(47,227,176,.4);color:var(--mint);font-size:14px;
}
.form-success.is-visible{display:block}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);background:#0A0911;padding:64px 0 24px;margin-top:var(--gap-d);
}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text)}
.footer-col p{font-size:14px;color:var(--weak);margin-bottom:8px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14px;color:var(--muted)}
.footer-col ul a:hover{color:var(--mint)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:var(--weak);
}
.footer-bottom p{margin:0}

/* ---------- Foundation 覆盖 ---------- */
.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px}
.grid-margin-y{margin-top:-12px}
.grid-margin-y>.cell{padding-top:12px;padding-bottom:12px}
.button{background:var(--mint);color:#06110D;border-radius:var(--radius-btn);font-weight:600;box-shadow:var(--shadow-mint);transition:.2s ease}
.button:hover{background:var(--mint);filter:brightness(1.08);color:#06110D;transform:translateY(-1px)}
.button.hollow{background:transparent;border:1px solid var(--line);color:var(--text);box-shadow:none}
.button.hollow:hover{border-color:rgba(47,227,176,.55);color:var(--mint);background:rgba(47,227,176,.06)}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  :root{--gap-d:64px;--gap-t:52px;--gap-m:44px}
  .side-nav{
    transform:translateX(-100%);
    transition:transform .3s cubic-bezier(.4,0,.2,1);
    width:280px;box-shadow:0 0 60px rgba(0,0,0,.7);
  }
  .side-nav.is-open{transform:translateX(0)}
  .side-nav__link{font-size:16px;padding:14px 16px}
  .site-content{margin-left:0}
  .topbar{display:flex}
  .notice-bar{padding:0 18px;font-size:12px}
  .cta-panel{grid-template-columns:1fr;padding:30px;gap:28px}
  .conclusion{grid-template-columns:1fr;padding:26px}
  .page-hero{padding:48px 0 52px}
}
@media screen and (max-width:768px){
  .section{padding:var(--gap-m) 0}
  .section--tight{padding:40px 0}
  .container{padding:0 18px}
  .check-list{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .timeline__item{padding-left:58px}
  .timeline__line{left:15px}
  .timeline__dot{width:32px;height:32px;font-size:13px}
  .hero-metrics__item{padding:10px 14px}
  .timeline__card{padding:18px}
}
@media screen and (max-width:520px){
  body{font-size:15px}
  .page-hero h1{font-size:28px}
  .page-hero__actions .btn{width:100%}
  .site-footer{padding:44px 0 20px}
  .hero-metrics{gap:8px}
  .hero-metrics__item{flex:1 1 calc(50% - 8px)}
  .cta-panel{padding:22px}
  .conclusion{padding:22px}
}