/* roulang page: index */
:root{
  --ink:#0E1A16;
  --ink-2:#16241F;
  --signal:#C7F04A;
  --signal-hover:#B4E02F;
  --signal-deep:#5C7A12;
  --amber:#FF7A29;
  --bg:#F5F3EE;
  --card:#FFFFFF;
  --line:#E3E0D8;
  --line-dark:#2A3833;
  --text:#1B1F1D;
  --muted:#5C6660;
  --muted-dark:rgba(245,243,238,.68);
  --r-card:14px;
  --r-img:10px;
  --shadow-card:0 1px 2px rgba(14,26,22,.05);
  --shadow-hover:0 14px 30px -18px rgba(14,26,22,.28);
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--signal);outline-offset:2px;border-radius:6px}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 32px}}
.section{scroll-margin-top:110px;padding:64px 0}
@media(min-width:768px){.section{padding:96px 0}}
.sec-num{font-family:var(--mono);font-size:13px;color:var(--signal-deep);letter-spacing:.14em}
.sec-num.on-dark{color:var(--signal)}
.h2{font-size:clamp(1.5rem,3vw,2.25rem)}
.lead{color:var(--muted);max-width:70ch;font-size:15.5px}
.lead.on-dark{color:var(--muted-dark)}
.rule-ticks{height:12px;background-image:repeating-linear-gradient(to right,var(--line) 0 1px,transparent 1px 14px);opacity:.9}
.rule-ticks.on-dark{background-image:repeating-linear-gradient(to right,var(--line-dark) 0 1px,transparent 1px 14px)}

/* ===== 悬浮胶囊导航 ===== */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:60;padding:0 14px;transition:padding .25s ease}
.nav-shell{
  max-width:1280px;margin:0 auto;display:flex;align-items:center;gap:14px;
  border-radius:999px;
  background:rgba(245,243,238,.82);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(14,26,22,.08);
  padding:9px 12px 9px 18px;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .nav-shell{
  background:rgba(245,243,238,.96);
  border-color:rgba(14,26,22,.16);
  box-shadow:0 14px 30px -18px rgba(14,26,22,.32);
}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:34px;height:34px;border-radius:4px;background:var(--ink);color:var(--signal);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-weight:700;font-size:14px;letter-spacing:.04em;
}
.brand-text{font-weight:700;font-size:15.5px;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:none;align-items:center;gap:2px;margin-left:6px;flex:1}
@media(min-width:1024px){.nav-links{display:flex}}
.nav-links a{
  position:relative;padding:9px 13px;border-radius:999px;font-size:14.5px;color:#33403A;
  transition:color .18s ease,background .18s ease;
}
.nav-links a:hover{color:var(--ink);background:rgba(14,26,22,.06)}
.nav-links a.active{color:var(--ink);font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;
  background:var(--signal-deep);border-radius:2px;
}
.nav-cta{display:none}
@media(min-width:1024px){.nav-cta{display:inline-flex;flex:none}}
.menu-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:999px;border:1px solid rgba(14,26,22,.14);
  background:transparent;cursor:pointer;flex:none;margin-left:auto;
}
@media(min-width:1024px){.menu-toggle{display:none}}
.menu-toggle span{display:block;width:16px;height:2px;background:var(--ink);position:relative;transition:.2s}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--ink);transition:.2s}
.menu-toggle span::before{top:-5px}
.menu-toggle span::after{top:5px}
.mobile-drawer{
  display:none;max-width:1280px;margin:10px auto 0;border-radius:22px;
  background:rgba(245,243,238,.98);border:1px solid rgba(14,26,22,.12);
  padding:14px 16px calc(14px + env(safe-area-inset-bottom));
  box-shadow:0 20px 40px -22px rgba(14,26,22,.35);
}
.mobile-drawer.open{display:block}
.mobile-drawer a{display:block;padding:12px 10px;border-radius:12px;font-size:15px;color:#2A3833}
.mobile-drawer a:hover,.mobile-drawer a.active{background:rgba(14,26,22,.06);color:var(--ink)}
.mobile-drawer .btn{width:100%;justify-content:center;margin-top:10px}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:12px 22px;border-radius:999px;border:1.5px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--signal);color:var(--ink)}
.btn-primary:hover{background:var(--signal-hover);transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(90,124,18,.9)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--bg);transform:translateY(-1px)}
.btn-on-dark{background:transparent;border-color:rgba(245,243,238,.38);color:var(--bg)}
.btn-on-dark:hover{background:var(--bg);color:var(--ink);transform:translateY(-1px)}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--ink)}
.btn-link svg{transition:transform .2s ease}
.btn-link:hover svg{transform:translateX(4px)}
.btn-link.on-dark{color:var(--signal)}

/* ===== Hero ===== */
.hero{position:relative;background:var(--ink);color:var(--bg);overflow:hidden;padding-top:96px}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.16;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(245,243,238,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(245,243,238,.05) 1px,transparent 1px);
  background-size:72px 72px;
  opacity:.5;pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding:48px 0 64px}
@media(min-width:1024px){.hero-inner{padding:72px 0 88px;min-height:74vh;display:flex;align-items:center}}
.hero-grid{display:grid;gap:40px;align-items:center;width:100%}
@media(min-width:1024px){.hero-grid{grid-template-columns:1.05fr .95fr;gap:56px}}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;padding:7px 15px;border-radius:999px;
  border:1px solid rgba(199,240,74,.42);color:var(--signal);font-size:13px;letter-spacing:.06em;
  background:rgba(199,240,74,.07);
}
.hero h1{
  margin-top:22px;color:var(--bg);
  font-size:clamp(2rem,5vw,3.5rem);line-height:1.12;letter-spacing:-.02em;
}
.hero-sub{margin-top:16px;font-size:17px;color:var(--muted-dark)}
.spec-bar{display:flex;flex-wrap:wrap;gap:8px 26px;margin-top:28px}
.spec-bar li{display:flex;align-items:baseline;gap:8px;font-size:14px;color:var(--muted-dark);position:relative;padding-left:14px}
.spec-bar li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:1px;background:var(--signal)}
.spec-bar b{font-family:var(--mono);color:var(--signal);font-size:15px;font-weight:700}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.hero-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid rgba(245,243,238,.16)}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-media .media-tag{
  position:absolute;left:14px;bottom:14px;padding:7px 14px;border-radius:999px;
  background:rgba(14,26,22,.72);border:1px solid rgba(245,243,238,.22);
  font-size:12.5px;color:var(--bg);font-family:var(--mono);letter-spacing:.04em;
}

/* ===== 通用卡片 / 徽章 ===== */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}
.card:hover{border-color:var(--ink);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.tag{display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;border:1px solid var(--line);background:#FAF9F5;font-size:12.5px;color:var(--muted)}
.tag.solid{background:rgba(199,240,74,.2);border-color:rgba(92,122,18,.3);color:#41520D;font-weight:600}
.tag.on-dark{background:rgba(255,255,255,.05);border-color:var(--line-dark);color:var(--muted-dark)}
.chip{display:inline-flex;align-items:center;gap:8px;padding:8px 15px;border-radius:999px;border:1px solid var(--line-dark);background:rgba(255,255,255,.04);font-size:13px;color:var(--muted-dark)}
.chip i{width:6px;height:6px;border-radius:50%;background:var(--signal);display:block;flex:none}

/* ===== 卖点 ===== */
.sell-grid{display:grid;gap:32px}
@media(min-width:1024px){.sell-grid{grid-template-columns:5fr 7fr;gap:56px}}
.sell-aside{align-self:start}
@media(min-width:1024px){.sell-aside{position:sticky;top:120px}}
.sell-cards{display:grid;gap:18px}
@media(min-width:768px){.sell-cards{grid-template-columns:1fr 1fr;align-items:start}}
.sell-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--shadow-card);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}
.sell-card:hover{border-color:var(--ink);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.sell-card .idx{font-family:var(--mono);font-size:13px;color:var(--signal-deep);letter-spacing:.12em}
.sell-card h3{margin-top:14px;font-size:1.125rem}
.sell-card p{margin-top:10px;font-size:14.5px;color:var(--muted)}
.sell-card.tall{padding-top:34px;padding-bottom:34px}
.icon-box{
  width:38px;height:38px;border-radius:4px;display:flex;align-items:center;justify-content:center;
  background:rgba(199,240,74,.22);color:#41520D;margin-bottom:16px;
}
.sell-card.tall .icon-box{background:var(--ink);color:var(--signal)}

/* ===== 演示步骤 ===== */
.steps{display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;scroll-snap-type:x mandatory}
.step-btn{
  flex:none;scroll-snap-align:start;display:inline-flex;align-items:center;gap:10px;
  padding:11px 18px;border-radius:999px;border:1px solid var(--line);background:#fff;
  font-size:14px;color:var(--muted);cursor:pointer;transition:.2s ease;white-space:nowrap;
}
.step-btn .num{font-size:12px;color:var(--signal-deep)}
.step-btn:hover{border-color:var(--ink);color:var(--ink)}
.step-btn.is-active{background:var(--ink);border-color:var(--ink);color:var(--bg);font-weight:600}
.step-btn.is-active .num{color:var(--signal)}
.demo-grid{display:grid;gap:28px;margin-top:28px}
@media(min-width:1024px){.demo-grid{grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}}
.demo-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:#fff}
.demo-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.step-panel{display:none}
.step-panel.is-active{display:block}
.step-panel h3{font-size:1.25rem}
.step-panel p{margin-top:12px;color:var(--muted);font-size:15px}
.step-panel ul{margin-top:18px;display:grid;gap:10px}
.step-panel li{position:relative;padding-left:20px;font-size:14.5px;color:#2A3833}
.step-panel li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:1.5px;background:var(--signal-deep)}

/* ===== 证据区（深色） ===== */
.proof{background:var(--ink);color:var(--bg);position:relative;overflow:hidden}
.proof::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:.1;
}
.proof .container{position:relative;z-index:2}
.proof-stats{display:grid;gap:24px;margin-top:44px}
@media(min-width:768px){.proof-stats{grid-template-columns:repeat(3,1fr);gap:32px}}
.stat{border-top:1px solid var(--line-dark);padding-top:20px}
.stat b{display:block;font-family:var(--mono);font-size:clamp(2rem,4vw,2.75rem);color:var(--signal);line-height:1.1;letter-spacing:-.02em}
.stat span{display:block;margin-top:10px;font-size:14px;color:var(--muted-dark)}
.badge-wall{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line-dark)}

/* ===== 最新信息（CMS 列表） ===== */
.latest-wrap{margin-top:56px;padding-top:40px;border-top:1px solid var(--line-dark)}
.latest-head{display:flex;flex-wrap:wrap;gap:14px;align-items:flex-end;justify-content:space-between}
.post-grid{display:grid;gap:20px;margin-top:28px}
@media(min-width:768px){.post-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.post-grid{grid-template-columns:repeat(3,1fr)}}
.post-card{background:var(--card);border:1px solid rgba(245,243,238,.12);border-radius:var(--r-card);overflow:hidden;display:flex;flex-direction:column;transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}
.post-card:hover{border-color:var(--signal);box-shadow:0 18px 34px -20px rgba(0,0,0,.6);transform:translateY(-3px)}
.post-cover{display:block;overflow:hidden}
.post-cover img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .35s ease}
.post-card:hover .post-cover img{transform:scale(1.04)}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:1.0625rem;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-body h3 a:hover{color:var(--signal-deep)}
.post-body .excerpt{
  font-size:14px;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:8px;font-size:12.5px;color:var(--muted)}
.post-meta .num{font-family:var(--mono)}
.post-empty{
  margin-top:28px;padding:52px 20px;text-align:center;border-radius:var(--r-card);
  border:1px dashed rgba(245,243,238,.26);background:rgba(255,255,255,.04);
  color:var(--muted-dark);font-size:14.5px;
}

/* ===== 价格 ===== */
.price-grid{display:grid;gap:20px;margin-top:40px;overflow-x:auto;padding:12px 4px 24px;scroll-snap-type:x mandatory}
.price-card{
  min-width:280px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:28px 24px;display:flex;flex-direction:column;gap:18px;
  box-shadow:var(--shadow-card);transition:.2s ease;position:relative;
}
.price-card:hover{border-color:var(--ink);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.price-card.featured{border:2px solid var(--signal);background:#fff}
.price-card.featured:hover{border-color:var(--signal-hover)}
.price-badge{position:absolute;top:-12px;left:24px;background:var(--signal);color:var(--ink);font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px}
.price-name{font-size:1rem;font-weight:700}
.price-desc{font-size:13.5px;color:var(--muted)}
.price-value{font-family:var(--mono);font-size:2rem;color:var(--ink);line-height:1.1}
.price-value small{font-size:13px;color:var(--muted);font-family:inherit;margin-left:4px}
.price-list{display:grid;gap:10px;font-size:14.5px;color:#2A3833}
.price-list li{position:relative;padding-left:24px}
.price-list li::before{
  content:"";position:absolute;left:2px;top:.5em;width:11px;height:6px;
  border-left:2px solid var(--signal-deep);border-bottom:2px solid var(--signal-deep);
  transform:rotate(-45deg);
}
.price-card .btn{width:100%}
@media(min-width:1024px){
  .price-grid{grid-template-columns:repeat(3,1fr);overflow:visible;align-items:center;padding:24px 0}
  .price-card{min-width:0}
  .price-card.featured{transform:translateY(-10px)}
  .price-card.featured:hover{transform:translateY(-12px)}
}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:14px;margin-top:36px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.open{border-color:var(--ink);box-shadow:var(--shadow-hover)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  background:none;border:0;padding:20px 22px;cursor:pointer;font-size:15.5px;font-weight:600;color:var(--ink);
}
.faq-q .num{font-size:12.5px;color:var(--signal-deep);flex:none}
.faq-q .sign{margin-left:auto;flex:none;width:22px;height:22px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:14px;color:var(--muted);transition:.2s ease}
.faq-item.open .faq-q .sign{background:var(--ink);border-color:var(--ink);color:var(--signal);transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-item.open .faq-a{max-height:340px}
.faq-a p{padding:0 22px 22px 58px;font-size:14.5px;color:var(--muted)}

/* ===== 尾段 CTA ===== */
.cta-band{
  border:1px solid var(--line);background:#fff;border-radius:22px;padding:34px 28px;
  display:grid;gap:22px;align-items:center;
}
@media(min-width:768px){.cta-band{grid-template-columns:1fr auto;padding:44px 44px}}
.cta-band h2{font-size:clamp(1.35rem,2.6vw,1.9rem)}
.cta-band p{margin-top:10px;color:var(--muted);font-size:15px;max-width:56ch}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink);color:var(--bg);margin-top:0;padding-top:8px}
.footer-grid{display:grid;gap:34px;padding:52px 0 30px}
@media(min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr}}
.footer-brand{font-size:17px;font-weight:700;display:flex;align-items:center;gap:10px}
.footer-brand .brand-mark{background:var(--signal);color:var(--ink)}
.site-footer p{color:var(--muted-dark);font-size:14px;margin-top:14px;max-width:44ch}
.footer-title{font-size:13px;letter-spacing:.14em;color:var(--signal);font-family:var(--mono);margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14.5px;color:var(--muted-dark);transition:color .18s ease}
.footer-links a:hover{color:var(--signal)}
.footer-contact{display:grid;gap:10px;font-size:14.5px;color:var(--muted-dark)}
.footer-contact .num{color:var(--bg)}
.footer-bottom{border-top:1px solid var(--line-dark);padding:18px 0 calc(18px + env(safe-area-inset-bottom));display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(245,243,238,.58)}

/* ===== 浮动 CTA ===== */
.float-cta{
  position:fixed;right:20px;bottom:24px;z-index:55;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--signal);color:var(--ink);font-weight:700;font-size:14.5px;
  padding:13px 22px;border-radius:999px;box-shadow:0 16px 32px -16px rgba(14,26,22,.5);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:var(--signal-hover);transform:translateY(-2px)}
@media(max-width:640px){
  .float-cta{left:0;right:0;bottom:0;border-radius:0;justify-content:center;height:56px;padding:0 16px calc(0px + env(safe-area-inset-bottom));}
  .float-cta.show{transform:translateY(0)}
  .float-cta:hover{transform:none}
}
@media(max-width:640px){
  .site-header{top:10px}
  .brand-text{font-size:14.5px}
  .hero{padding-top:86px}
}

/* roulang page: article */
:root{
  --ink:#0E1A16;
  --ink-soft:#16241F;
  --signal:#C7F04A;
  --signal-hover:#B4E02F;
  --amber:#FF7A29;
  --bg:#F5F3EE;
  --card:#FFFFFF;
  --line:#E3E0D8;
  --line-dark:#2A3833;
  --text:#1B1F1D;
  --text-2:#5C6660;
  --inv:#F5F3EE;
  --inv-2:rgba(245,243,238,.68);
  --r-card:14px;
  --r-img:10px;
  --r-pill:999px;
  --shadow-card:0 1px 2px rgba(14,26,22,.05);
  --shadow-hover:0 14px 30px -18px rgba(14,26,22,.28);
  --container:1280px;
  --font-sans:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::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:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease-out,opacity .2s ease-out}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:4px}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media(min-width:1024px){.container{padding-left:32px;padding-right:32px}}

/* ---------- 装饰刻度线 ---------- */
.rule-ticks{
  position:relative;
  height:12px;
  border-top:1px solid var(--line);
  margin-bottom:24px;
}
.rule-ticks::after{
  content:"";
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(to right,var(--line) 0 1px,transparent 1px 56px);
  height:7px;
}
.rule-ticks.on-dark{border-top-color:var(--line-dark)}
.rule-ticks.on-dark::after{background-image:repeating-linear-gradient(to right,var(--line-dark) 0 1px,transparent 1px 56px)}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{
  position:fixed;
  top:16px;left:0;right:0;
  z-index:60;
  padding:0 20px;
  transition:all .25s ease-out;
}
@media(min-width:1024px){.site-header{padding:0 32px}}
.nav-shell{
  max-width:var(--container);
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:16px;
  padding:10px 12px 10px 18px;
  border:1px solid rgba(227,224,216,.9);
  border-radius:var(--r-pill);
  background:rgba(245,243,238,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:0 1px 2px rgba(14,26,22,.04);
  transition:all .25s ease-out;
}
.site-header.is-scrolled .nav-shell{
  background:rgba(245,243,238,.96);
  border-color:var(--line);
  box-shadow:0 12px 28px -20px rgba(14,26,22,.5);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border-radius:4px;
  background:var(--ink);
  color:var(--signal);
  font-family:var(--font-mono);
  font-size:15px;
  font-weight:700;
  letter-spacing:.04em;
}
.brand-text{
  font-size:16px;
  font-weight:700;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.nav-links{
  display:none;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
@media(min-width:1024px){.nav-links{display:flex}}
.nav-links a{
  position:relative;
  padding:9px 14px;
  border-radius:var(--r-pill);
  font-size:14.5px;
  color:var(--text-2);
  white-space:nowrap;
}
.nav-links a:hover{color:var(--ink);background:rgba(14,26,22,.05)}
.nav-links a.active{color:var(--ink);font-weight:600;background:rgba(199,240,74,.34)}
.nav-actions{
  display:flex;
  align-items:center;
  gap:8px;
  margin-left:auto;
}
@media(min-width:1024px){.nav-actions{margin-left:0}}
.nav-toggle{
  display:inline-flex;
  flex-direction:column;
  justify-content:center;
  gap:4px;
  width:42px;height:42px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:#fff;
  align-items:center;
}
@media(min-width:1024px){.nav-toggle{display:none}}
.nav-toggle span{
  display:block;width:16px;height:1.6px;background:var(--ink);border-radius:2px;
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(5.6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg)}
.mobile-drawer{
  max-width:var(--container);
  margin:10px auto 0;
  border:1px solid var(--line);
  border-radius:20px;
  background:rgba(245,243,238,.98);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-hover);
  padding:14px;
  display:none;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{
  display:block;
  padding:12px 14px;
  border-radius:12px;
  font-size:15px;
  color:var(--text-2);
  border-bottom:1px solid rgba(227,224,216,.6);
}
.mobile-drawer a:last-of-type{border-bottom:0}
.mobile-drawer a.active{color:var(--ink);font-weight:600;background:rgba(199,240,74,.28)}
.mobile-drawer .drawer-cta{margin-top:12px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  line-height:1;
  transition:all .2s ease-out;
  white-space:nowrap;
}
.btn-primary{background:var(--signal);color:var(--ink)}
.btn-primary:hover{background:var(--signal-hover);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn-outline:hover{background:var(--ink);color:var(--inv)}
.btn-ghost{padding:12px 6px;color:var(--ink);font-weight:600}
.btn-ghost .arrow{transition:transform .2s ease-out}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-inv{background:var(--signal);color:var(--ink)}
.btn-inv:hover{background:var(--signal-hover)}

/* ---------- 文章头 ---------- */
main{padding-top:104px}
.article-hero{
  position:relative;
  background:var(--ink);
  color:var(--inv);
  border-radius:0 0 28px 28px;
  overflow:hidden;
  padding:36px 0 56px;
}
.article-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(42,56,51,.55) 1px,transparent 1px),
    linear-gradient(90deg,rgba(42,56,51,.55) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(120% 90% at 78% 10%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(120% 90% at 78% 10%,#000 0%,transparent 72%);
  pointer-events:none;
}
.article-hero > .container{position:relative;z-index:2}
.crumbs{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--inv-2);
  margin-bottom:26px;
}
.crumbs a{color:var(--inv-2)}
.crumbs a:hover{color:var(--signal)}
.crumbs .sep{opacity:.5}
.crumbs .current{
  max-width:min(46vw,340px);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  color:var(--inv);
}
.badge-cat{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  border:1px solid rgba(199,240,74,.5);
  background:rgba(199,240,74,.12);
  color:var(--signal);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.02em;
}
.article-hero h1{
  margin:20px 0 18px;
  font-size:clamp(1.75rem,3.6vw,2.7rem);
  line-height:1.16;
  letter-spacing:-.02em;
  font-weight:800;
  max-width:22ch;
}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px 22px;
  font-size:13px;
  color:var(--inv-2);
}
.article-meta .dot{
  width:4px;height:4px;border-radius:50%;background:var(--line-dark);display:inline-block;
}
.article-meta b{color:var(--signal);font-weight:600}

/* ---------- 正文 ---------- */
.article-shell{padding:48px 0 8px}
.article-figure{
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  background:#fff;
  margin-bottom:40px;
}
.article-figure img{width:100%;aspect-ratio:21/9;object-fit:cover}
.article-body{
  max-width:760px;
  margin:0 auto;
  font-size:16px;
  line-height:1.78;
  color:var(--text);
}
.article-body > * + *{margin-top:1.15em}
.article-body h2{
  font-size:clamp(1.3rem,2.4vw,1.65rem);
  line-height:1.3;
  letter-spacing:-.015em;
  font-weight:700;
  margin-top:2.5rem;
  padding-left:14px;
  border-left:4px solid var(--signal);
}
.article-body h3{
  font-size:1.16rem;
  font-weight:700;
  margin-top:2rem;
  color:var(--ink);
}
.article-body h4{font-size:1.02rem;font-weight:700;margin-top:1.6rem;color:var(--ink)}
.article-body p{color:#2B322F}
.article-body a{
  color:var(--ink);
  border-bottom:1.5px solid var(--signal);
  padding-bottom:1px;
}
.article-body a:hover{background:rgba(199,240,74,.35)}
.article-body strong{font-weight:700;color:var(--ink)}
.article-body ul,.article-body ol{padding-left:0}
.article-body ul li,.article-body ol li{
  position:relative;
  padding-left:30px;
  margin-top:.6em;
  color:#2B322F;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:8px;top:.72em;
  width:7px;height:7px;
  border-radius:2px;
  background:var(--signal);
}
.article-body ol{counter-reset:item}
.article-body ol li{counter-increment:item}
.article-body ol li::before{
  content:counter(item,decimal-leading-zero);
  position:absolute;
  left:0;top:0;
  font-family:var(--font-mono);
  font-size:.8rem;
  font-variant-numeric:tabular-nums;
  color:var(--text-2);
  padding-top:2px;
}
.article-body blockquote{
  border-left:3px solid var(--signal);
  background:#fff;
  border-radius:0 var(--r-card) var(--r-card) 0;
  padding:18px 22px;
  color:var(--text-2);
  font-size:15.5px;
}
.article-body blockquote p{color:var(--text-2)}
.article-body img{
  border-radius:var(--r-img);
  border:1px solid var(--line);
  width:100%;
}
.article-body figure figcaption{
  font-size:13px;
  color:var(--text-2);
  text-align:center;
  margin-top:10px;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  font-size:14.5px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.article-body .table-scroll{overflow-x:auto;border-radius:var(--r-card)}
.article-body th,.article-body td{
  border-bottom:1px solid var(--line);
  padding:12px 14px;
  text-align:left;
  vertical-align:top;
}
.article-body th{
  background:#EFEDE6;
  font-weight:600;
  font-size:13.5px;
  letter-spacing:.01em;
}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body code{
  font-family:var(--font-mono);
  font-size:13.5px;
  background:#EFEDE6;
  border-radius:4px;
  padding:2px 6px;
}
.article-body pre{
  background:var(--ink);
  color:var(--inv);
  border-radius:var(--r-card);
  padding:18px 20px;
  overflow-x:auto;
  font-family:var(--font-mono);
  font-size:13.5px;
  line-height:1.7;
}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4rem 0}

/* 文章尾部 */
.article-foot{
  max-width:760px;
  margin:52px auto 0;
  padding-top:28px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.article-foot .note{font-size:13px;color:var(--text-2)}
.empty-state{
  max-width:760px;
  margin:0 auto;
  text-align:center;
  padding:56px 24px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
}
.empty-state .frame{
  width:64px;height:64px;
  margin:0 auto 18px;
  border:1.5px dashed var(--line);
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  color:var(--text-2);
  font-family:var(--font-mono);
  font-size:20px;
}

/* ---------- 通用板块 ---------- */
.section{padding:64px 0}
@media(min-width:768px){.section{padding:88px 0}}
.section-head{max-width:720px;margin-bottom:36px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--text-2);
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:26px;height:1px;background:var(--signal);
}
.section h2{
  font-size:clamp(1.45rem,2.8vw,2.1rem);
  line-height:1.24;
  letter-spacing:-.02em;
  font-weight:800;
  color:var(--ink);
}
.section-head p{margin-top:14px;color:var(--text-2);font-size:15.5px;max-width:66ch}

/* ---------- 推荐卡片 ---------- */
.rec-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
}
@media(min-width:768px){.rec-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.rec-grid{grid-template-columns:repeat(3,1fr)}}
.rec-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:box-shadow .2s ease-out,border-color .2s ease-out,transform .2s ease-out;
}
.rec-card:hover{
  border-color:var(--ink);
  box-shadow:var(--shadow-hover);
  transform:translateY(-2px);
}
.rec-card .thumb{overflow:hidden;background:#EFEDE6}
.rec-card .thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .35s ease-out}
.rec-card:hover .thumb img{transform:scale(1.03)}
.rec-card .body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.tag{
  display:inline-flex;
  align-items:center;
  align-self:flex-start;
  padding:4px 11px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:#F5F3EE;
  font-size:12px;
  color:var(--text-2);
  letter-spacing:.02em;
}
.rec-card h3{
  font-size:1.05rem;
  font-weight:700;
  line-height:1.45;
  letter-spacing:-.01em;
  color:var(--ink);
  transition:color .2s ease-out;
}
.rec-card:hover h3{color:#7BA516}
.rec-card p{
  font-size:14px;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rec-card .meta{
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:12.5px;
  color:var(--text-2);
}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.faq-item.is-open{border-color:var(--ink);box-shadow:var(--shadow-hover)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  gap:16px;
  padding:18px 20px;
  text-align:left;
  font-size:15.5px;
  font-weight:600;
  color:var(--ink);
}
.faq-q .idx{
  font-family:var(--font-mono);
  font-size:12.5px;
  color:var(--text-2);
  flex-shrink:0;
}
.faq-q .txt{flex:1}
.faq-q .sign{
  flex-shrink:0;
  width:24px;height:24px;
  border-radius:50%;
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);
  font-size:14px;
  color:var(--ink);
  transition:all .2s ease-out;
}
.faq-item.is-open .faq-q .sign{background:var(--signal);border-color:var(--signal)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s ease-out;
}
.faq-a .inner{
  padding:0 20px 20px 48px;
  font-size:14.5px;
  color:var(--text-2);
}

/* ---------- CTA 条 ---------- */
.cta-bar{
  border:1px solid var(--line);
  background:#fff;
  border-radius:24px;
  padding:30px 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  box-shadow:var(--shadow-card);
}
.cta-bar h2{
  font-size:clamp(1.25rem,2.3vw,1.6rem);
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--ink);
}
.cta-bar p{margin-top:8px;font-size:14.5px;color:var(--text-2);max-width:56ch}
.cta-bar .actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;
  right:28px;bottom:28px;
  z-index:55;
  opacity:0;
  transform:translateY(10px);
  pointer-events:none;
  transition:opacity .25s ease-out,transform .25s ease-out;
  box-shadow:0 16px 32px -18px rgba(14,26,22,.6);
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
@media(max-width:767px){
  .float-cta{
    right:0;left:0;bottom:0;
    border-radius:0;
    height:56px;
    padding:0;
    display:flex;
    align-items:center;
    justify-content:center;
    transform:translateY(100%);
    box-shadow:0 -8px 24px -16px rgba(14,26,22,.6);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .float-cta.is-visible{transform:translateY(0)}
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:var(--inv);
  margin-top:72px;
  padding:52px 0 32px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:36px;
}
@media(min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1.2fr;gap:32px}}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:16px;
  font-weight:700;
  margin-bottom:14px;
}
.footer-brand .brand-mark{background:rgba(199,240,74,.15);color:var(--signal)}
.site-footer p{font-size:14px;color:var(--inv-2);max-width:42ch;line-height:1.8}
.footer-title{
  font-size:12.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--inv-2);
  font-family:var(--font-mono);
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14.5px;color:var(--inv-2)}
.footer-links a:hover{color:var(--signal)}
.footer-contact{display:flex;flex-direction:column;gap:11px;font-size:14px;color:var(--inv-2)}
.footer-contact b{color:var(--signal);font-weight:600}
.footer-bottom{
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid var(--line-dark);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--inv-2);
}

@media(max-width:639px){
  main{padding-top:96px}
  .article-hero{padding:26px 0 44px}
  .article-hero h1{font-size:1.72rem}
  .section{padding:56px 0}
  .cta-bar{padding:24px 20px}
  .site-footer{padding-bottom:88px}
}

/* roulang page: category1 */
:root{
  --ink:#0E1A16;
  --ink-2:#16241F;
  --signal:#C7F04A;
  --signal-2:#B4E02F;
  --amber:#FF7A29;
  --sand:#F5F3EE;
  --card:#FFFFFF;
  --line:#E3E0D8;
  --line-2:#D6D2C6;
  --line-dark:#2A3833;
  --text:#1B1F1D;
  --text-2:#5C6660;
  --text-3:#8A938D;
  --r-card:14px;
  --r-img:10px;
  --sh-1:0 1px 2px rgba(14,26,22,.05);
  --sh-2:0 14px 30px -18px rgba(14,26,22,.28);
  --mono:ui-monospace,"SFMono-Regular","JetBrains Mono",Menlo,Consolas,monospace;
  --sans:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;
}

/* base */
body.site-body{
  margin:0;
  background:var(--sand);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.site-body img{max-width:100%;display:block}
body.site-body a{color:inherit;text-decoration:none}
body.site-body button{font-family:inherit;cursor:pointer}
body.site-body .num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

body .container{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1024px){
  body .container{padding-left:32px;padding-right:32px}
}

.skip-link{
  position:absolute;left:-9999px;top:0;background:var(--signal);color:var(--ink);
  padding:10px 18px;border-radius:999px;z-index:200;
}
.skip-link:focus{left:16px;top:16px}

/* header */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  padding:14px 0;
  transition:padding .25s ease;
}
.nav-shell{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:rgba(245,243,238,.82);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:999px;
  padding:7px 9px 7px 16px;
  box-shadow:var(--sh-1);
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .nav-shell{
  background:rgba(245,243,238,.97);
  border-color:var(--line-2);
  box-shadow:0 16px 34px -24px rgba(14,26,22,.45);
}
.brand{display:inline-flex;align-items:center;gap:9px;flex:0 0 auto}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:4px;
  background:var(--ink);color:var(--signal);
  font-family:var(--mono);font-size:14px;font-weight:700;letter-spacing:.02em;
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}

.nav-links{display:none;align-items:center;gap:2px}
@media (min-width:1024px){
  .nav-links{display:flex}
}
.nav-links a{
  position:relative;
  display:inline-flex;align-items:center;
  padding:8px 13px;border-radius:999px;
  font-size:14px;color:var(--text-2);
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--ink);background:rgba(14,26,22,.05)}
.nav-links a.active{color:var(--ink);font-weight:600;background:rgba(199,240,74,.42)}
.nav-links a.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;border-radius:2px;
  background:var(--signal-2);
}
.nav-right{display:flex;align-items:center;gap:8px}

.nav-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:4px;
  width:42px;height:42px;border:1px solid var(--line-2);background:#fff;border-radius:999px;
  align-items:center;transition:border-color .2s ease,background .2s ease;
}
.nav-toggle span{display:block;width:16px;height:1.6px;background:var(--ink);border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.nav-toggle:hover{border-color:var(--ink)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(5.6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg)}
@media (min-width:1024px){ .nav-toggle{display:none} }

.mobile-panel{
  display:none;
  margin:10px 0 0;
  background:rgba(245,243,238,.98);
  border:1px solid var(--line);
  border-radius:22px;
  padding:14px;
  box-shadow:var(--sh-2);
  backdrop-filter:blur(16px);
}
.mobile-panel.is-open{display:block}
@media (min-width:1024px){ .mobile-panel.is-open{display:none} }
.mobile-panel a{
  display:block;padding:12px 14px;border-radius:12px;font-size:15px;color:var(--text-2);
}
.mobile-panel a:hover{background:rgba(14,26,22,.05);color:var(--ink)}
.mobile-panel a.active{background:rgba(199,240,74,.42);color:var(--ink);font-weight:600}
.mobile-panel .panel-cta{margin-top:8px}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:999px;border:1.5px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--signal);outline-offset:2px}
.btn-primary{background:var(--signal);color:var(--ink)}
.btn-primary:hover{background:var(--signal-2);transform:translateY(-1px);box-shadow:0 12px 26px -16px rgba(14,26,22,.5)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--sand)}
.btn-on-dark{background:transparent;border-color:rgba(245,243,238,.4);color:var(--sand)}
.btn-on-dark:hover{background:rgba(245,243,238,.12);border-color:var(--sand)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-amber{border-color:var(--amber);color:var(--amber);background:transparent}
.btn-amber:hover{background:var(--amber);color:#fff}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink)}
.link-arrow .ar{transition:transform .2s ease}
.link-arrow:hover .ar{transform:translateX(4px)}
.link-arrow:hover{color:var(--signal-2)}

/* hero */
.page-hero{
  position:relative;
  background:var(--ink);
  color:var(--sand);
  padding:132px 0 68px;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(245,243,238,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(245,243,238,.05) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.55;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;right:-160px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(199,240,74,.20),transparent 68%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(245,243,238,.6)}
.crumbs a{color:rgba(245,243,238,.68)}
.crumbs a:hover{color:var(--signal)}
.crumbs .sep{opacity:.5}
.crumbs .current{color:var(--signal)}

.hero-grid{display:grid;gap:36px;align-items:center;margin-top:22px}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:1.12fr .88fr;gap:52px;margin-top:28px}
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--signal);margin-bottom:14px;
}
.hero-eyebrow::before{content:"";width:26px;height:1px;background:var(--signal);display:inline-block}
h1.hero-title{
  font-size:clamp(2rem,5vw,3.5rem);
  line-height:1.12;
  letter-spacing:-.02em;
  font-weight:800;
  margin:0 0 16px;
  color:#fff;
}
h1.hero-title em{font-style:normal;color:var(--signal)}
.hero-sub{
  font-size:16px;line-height:1.8;color:rgba(245,243,238,.76);
  max-width:60ch;margin:0 0 22px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}
.hero-params{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark);
}
.hero-params div{
  padding:14px 4px;
  border-right:1px solid var(--line-dark);
}
.hero-params div:last-child{border-right:none}
.hero-params .k{font-family:var(--mono);font-size:20px;font-weight:700;color:var(--signal)}
.hero-params .v{font-size:12.5px;color:rgba(245,243,238,.62);margin-top:2px}
.hero-figure{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line-dark)}
.hero-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}
.hero-figure .tag-corner{
  position:absolute;left:14px;bottom:14px;
  background:rgba(14,26,22,.78);border:1px solid rgba(199,240,74,.5);
  color:var(--signal);font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;
  padding:6px 12px;border-radius:4px;
}

/* section basics */
.section{padding:64px 0}
@media (min-width:768px){ .section{padding:88px 0} }
.section-dark{background:var(--ink);color:var(--sand)}
.section-head{margin-bottom:34px;max-width:760px}
.section-num{
  font-family:var(--mono);font-size:12px;letter-spacing:.16em;color:var(--signal-2);
  display:inline-flex;align-items:center;gap:10px;margin-bottom:10px;
}
.section-num::after{content:"";width:36px;height:1px;background:var(--line-2);display:inline-block}
h2.section-title{
  font-size:clamp(1.5rem,3vw,2.25rem);line-height:1.22;letter-spacing:-.015em;
  font-weight:800;margin:0 0 12px;color:var(--ink);
}
.section-dark h2.section-title{color:#fff}
.section-desc{font-size:15.5px;line-height:1.8;color:var(--text-2);margin:0;max-width:72ch}
.section-dark .section-desc{color:rgba(245,243,238,.7)}

.rule-ticks{
  height:10px;
  background-image:repeating-linear-gradient(90deg,var(--line-2) 0 1px,transparent 1px 18px);
  background-position:0 0;background-size:18px 10px;
  border-top:1px solid var(--line);
  margin-bottom:28px;
}
.rule-ticks.on-dark{background-image:repeating-linear-gradient(90deg,var(--line-dark) 0 1px,transparent 1px 18px);border-top-color:var(--line-dark)}

/* filter chips */
.filter-bar{
  position:sticky;top:86px;z-index:40;
  display:flex;gap:8px;overflow-x:auto;
  padding:10px;margin:0 0 30px;
  background:rgba(245,243,238,.9);
  backdrop-filter:blur(12px);
  border:1px solid var(--line);border-radius:999px;
  scrollbar-width:none;
}
.filter-bar::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;
  padding:8px 16px;border-radius:999px;border:1px solid var(--line-2);
  background:#fff;color:var(--text-2);font-size:13.5px;
  transition:all .2s ease;
}
.chip:hover{border-color:var(--ink);color:var(--ink)}
.chip.is-active{background:var(--ink);border-color:var(--ink);color:var(--signal);font-weight:600}

/* product cards */
.product-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){ .product-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px} }
@media (min-width:1280px){ .product-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px} }
.pcard{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.pcard:hover{border-color:var(--ink);box-shadow:var(--sh-2);transform:translateY(-3px)}
.pcard-media{position:relative;overflow:hidden;background:#EDEAE2}
.pcard-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .35s ease}
.pcard:hover .pcard-media img{transform:scale(1.03)}
.pcard-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-size:12px;letter-spacing:.02em;
  background:#F1EFE8;border:1px solid var(--line-2);color:var(--text-2);
  align-self:flex-start;
}
.badge-signal{background:rgba(199,240,74,.35);border-color:rgba(199,240,74,.9);color:#26350E}
.badge-amber{background:rgba(255,122,41,.12);border-color:rgba(255,122,41,.45);color:#9A4408}
.pcard h3{
  font-size:1.125rem;font-weight:700;line-height:1.4;letter-spacing:-.01em;
  margin:0;color:var(--ink);transition:color .2s ease;
}
.pcard:hover h3{color:#5B7A15}
.pcard p{margin:0;font-size:14.5px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.pcard-meta{
  display:flex;flex-wrap:wrap;gap:6px 14px;
  font-family:var(--mono);font-size:12.5px;color:var(--text-3);
  padding-top:12px;border-top:1px dashed var(--line-2);
  margin-top:auto;
}
.pcard-meta b{color:var(--ink);font-weight:700}
.pcard-link{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--ink)}
.pcard-link .ar{transition:transform .2s ease}
.pcard:hover .pcard-link .ar{transform:translateX(4px)}

/* spec compare */
.spec-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;box-shadow:var(--sh-1)}
.spec-table{min-width:820px}
.spec-row{
  display:grid;
  grid-template-columns:1.05fr 1.5fr 1.7fr .7fr .8fr;
  gap:12px;
  padding:15px 20px;
  align-items:center;
  border-bottom:1px solid var(--line);
  font-size:14px;
}
.spec-row:last-child{border-bottom:none}
.spec-head{
  background:#EFEDE6;font-family:var(--mono);font-size:12px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--text-2);
}
.spec-row .m{font-family:var(--mono);font-weight:700;color:var(--ink)}
.spec-row .d{color:var(--text-2)}
.spec-row .n{font-family:var(--mono);color:var(--ink)}
.spec-row:not(.spec-head):hover{background:#FAF9F5}

/* steps */
.steps{display:grid;gap:16px;grid-template-columns:1fr}
@media (min-width:640px){ .steps{grid-template-columns:repeat(2,minmax(0,1fr))} }
@media (min-width:1024px){ .steps{grid-template-columns:repeat(4,minmax(0,1fr))} }
.step{
  position:relative;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-dark);
  border-radius:var(--r-card);
  padding:22px 20px;
  transition:border-color .2s ease,background .2s ease;
}
.step:hover{border-color:rgba(199,240,74,.55);background:rgba(199,240,74,.06)}
.step .no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:26px;border-radius:4px;
  background:var(--signal);color:var(--ink);
  font-family:var(--mono);font-size:13px;font-weight:700;letter-spacing:.04em;
  margin-bottom:14px;
}
.step h3{font-size:1.0625rem;font-weight:700;color:#fff;margin:0 0 8px}
.step p{margin:0;font-size:14px;line-height:1.72;color:rgba(245,243,238,.68)}

/* stats strip */
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:2px;background:var(--line-dark);border-radius:var(--r-card);overflow:hidden}
.stats > div{background:var(--ink);padding:22px 20px}
.stats .v{font-family:var(--mono);font-size:clamp(1.5rem,4vw,2.1rem);font-weight:700;color:var(--signal);line-height:1.1}
.stats .l{font-size:13px;color:rgba(245,243,238,.66);margin-top:6px}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item:hover{border-color:var(--line-2)}
.faq-item.is-open{border-color:var(--ink);box-shadow:var(--sh-2)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  padding:18px 20px;background:none;border:none;
  font-size:15.5px;font-weight:600;color:var(--ink);line-height:1.55;
}
.faq-q:focus-visible{outline:2px solid var(--signal);outline-offset:-2px}
.faq-q .idx{font-family:var(--mono);font-size:12.5px;color:var(--signal-2);flex:0 0 auto}
.faq-q .txt{flex:1}
.faq-q .ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:999px;
  border:1px solid var(--line-2);display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;color:var(--text-2);transition:all .2s ease;
}
.faq-item.is-open .faq-q .ico{background:var(--signal);border-color:var(--signal);color:var(--ink)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a p{margin:0;padding:0 20px 20px 50px;font-size:14.5px;line-height:1.8;color:var(--text-2)}

/* related */
.rel-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){ .rel-grid{grid-template-columns:repeat(3,minmax(0,1fr))} }
.rel-card{
  display:flex;flex-direction:column;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 20px;box-shadow:var(--sh-1);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.rel-card:hover{border-color:var(--ink);box-shadow:var(--sh-2);transform:translateY(-3px)}
.rel-card .rn{font-family:var(--mono);font-size:12px;color:var(--signal-2);letter-spacing:.12em}
.rel-card h3{font-size:1.0625rem;font-weight:700;margin:0;color:var(--ink)}
.rel-card p{margin:0;font-size:14px;line-height:1.7;color:var(--text-2)}

/* CTA band */
.cta-band{
  background:#fff;border:1px solid var(--line);border-radius:22px;
  padding:30px 26px;
  display:flex;flex-direction:column;gap:20px;
  box-shadow:var(--sh-1);
  scroll-margin-top:110px;
}
@media (min-width:900px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:36px 38px}
}
.cta-band h2{font-size:clamp(1.25rem,2.6vw,1.75rem);line-height:1.3;font-weight:800;margin:0 0 8px;color:var(--ink)}
.cta-band p{margin:0;font-size:14.5px;color:var(--text-2);max-width:60ch}
.cta-band .acts{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}

/* footer */
.site-footer{
  background:var(--ink);color:rgba(245,243,238,.72);
  padding:56px 0 24px;margin-top:8px;
}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:768px){ .footer-grid{grid-template-columns:1.3fr 1fr 1.2fr} }
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{background:var(--signal);color:var(--ink)}
.footer-brand span:last-child{color:#fff;font-weight:700;font-size:16px}
.site-footer p{margin:0;font-size:14px;line-height:1.8;color:rgba(245,243,238,.66);max-width:46ch}
.footer-title{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--signal);margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:9px}
.footer-links a{font-size:14px;color:rgba(245,243,238,.72);transition:color .2s ease}
.footer-links a:hover{color:var(--signal)}
.footer-contact{display:flex;flex-direction:column;gap:9px;font-size:14px;color:rgba(245,243,238,.72)}
.footer-contact b{color:var(--signal);font-family:var(--mono)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:8px 22px;justify-content:space-between;
  border-top:1px solid var(--line-dark);margin-top:34px;padding-top:18px;
  font-size:12.5px;color:rgba(245,243,238,.5);
}

/* float cta */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:999px;
  background:var(--signal);color:var(--ink);font-weight:700;font-size:15px;
  box-shadow:0 18px 34px -18px rgba(14,26,22,.55);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s ease,background .2s ease;
}
.float-cta:hover{background:var(--signal-2)}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
@media (max-width:767px){
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;height:56px;padding:0 20px;
    box-shadow:0 -8px 24px -14px rgba(14,26,22,.5);
  }
  body.site-body{padding-bottom:56px}
}

/* misc */
.clip-corner{
  clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,0 100%);
}
@media (max-width:520px){
  .hero-params{grid-template-columns:1fr;border-bottom:none}
  .hero-params div{border-right:none;border-bottom:1px solid var(--line-dark);padding:12px 0}
  .hero-params div:last-child{border-bottom:none}
  .stats{grid-template-columns:1fr}
  .filter-bar{top:78px}
}

/* roulang page: category2 */
:root{
  --ink:#0E1A16;
  --ink-2:#16241F;
  --signal:#C7F04A;
  --signal-dark:#B4E02F;
  --amber:#FF7A29;
  --sand:#F5F3EE;
  --card:#FFFFFF;
  --line:#E3E0D8;
  --line-dark:#2A3833;
  --text:#1B1F1D;
  --muted:#5C6660;
  --on-dark:rgba(245,243,238,.68);
  --r-card:14px;
  --r-img:10px;
  --shadow-1:0 1px 2px rgba(14,26,22,.05);
  --shadow-2:0 14px 30px -18px rgba(14,26,22,.28);
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--sand);
  color:var(--text);
  font-family:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--signal);outline-offset:2px;border-radius:4px}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- 悬浮胶囊导航 ---------- */
.header-wrap{position:fixed;top:16px;left:0;right:0;z-index:80;padding:0 16px;pointer-events:none}
.nav-shell{
  pointer-events:auto;
  max-width:1280px;margin:0 auto;
  display:flex;align-items:center;gap:16px;
  padding:9px 10px 9px 18px;
  border:1px solid rgba(14,26,22,.10);
  border-radius:999px;
  background:rgba(245,243,238,.80);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-1);
  transition:background .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.nav-shell.is-scrolled{background:rgba(245,243,238,.96);border-color:rgba(14,26,22,.20);box-shadow:var(--shadow-2)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:40px;height:32px;padding:0 9px;
  background:var(--ink);color:var(--signal);
  font-family:var(--mono);font-weight:700;font-size:15px;letter-spacing:.06em;
  border-radius:4px;
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:.01em;color:var(--ink);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links a{
  position:relative;
  padding:8px 12px;border-radius:999px;
  font-size:14.5px;color:var(--muted);white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links a:hover{color:var(--ink);background:rgba(14,26,22,.05)}
.nav-links a.active{color:var(--ink);font-weight:700}
.nav-links a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  background:var(--signal);border-radius:2px;
}
.nav-toggle{
  display:none;width:44px;height:40px;border-radius:999px;
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
  margin-left:auto;
}
.nav-toggle span{display:block;width:16px;height:1.6px;background:var(--ink);border-radius:2px;transition:transform .25s var(--ease),opacity .2s}
.nav-toggle.is-open span:nth-child(1){transform:translateY(5.6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg)}
.mobile-drawer{
  position:fixed;inset:0;z-index:70;display:none;
  background:rgba(245,243,238,.98);
  padding:96px 24px 32px;
  backdrop-filter:blur(10px);
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{
  display:block;padding:16px 4px;font-size:18px;font-weight:600;
  border-bottom:1px solid var(--line);color:var(--ink);
}
.mobile-drawer a.active{color:var(--ink)}
.mobile-drawer a.active span{color:var(--signal-dark)}
.mobile-drawer .btn{display:flex;justify-content:center;margin-top:24px;border-bottom:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:999px;
  font-size:14.5px;font-weight:600;letter-spacing:.01em;
  border:1.5px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--signal);color:var(--ink)}
.btn-primary:hover{background:var(--signal-dark);transform:translateY(-1px)}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--ink);color:var(--sand)}
.btn-outline-light{border-color:rgba(245,243,238,.42);color:var(--sand)}
.btn-outline-light:hover{background:var(--sand);color:var(--ink);border-color:var(--sand)}
.btn-ghost{padding:0;height:auto;color:var(--ink);font-weight:700;border:0}
.btn-ghost .arrow{transition:transform .2s var(--ease)}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn-amber{border-color:var(--amber);color:var(--amber);background:transparent}
.btn-amber:hover{background:var(--amber);color:#fff}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  border:1px solid var(--line);background:#fff;color:var(--muted);
}
.badge-signal{background:var(--signal);border-color:var(--signal);color:var(--ink)}
.badge-dark{background:rgba(255,255,255,.04);border-color:var(--line-dark);color:var(--on-dark)}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:6px;
  font-size:12.5px;color:var(--muted);
  border:1px solid var(--line);background:rgba(255,255,255,.7);
}
.tag-mono{font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--ink)}

/* ---------- 刻度装饰线 ---------- */
.rule-ticks{
  height:9px;width:100%;
  background-image:repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px 14px);
  border-top:1px solid var(--line);
}
.rule-ticks.on-dark{
  background-image:repeating-linear-gradient(90deg,var(--line-dark) 0 1px,transparent 1px 14px);
  border-top:1px solid var(--line-dark);
}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--ink);color:var(--sand);overflow:hidden;padding:128px 0 64px}
.hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  opacity:.30;filter:saturate(.72);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,26,22,.74) 0%,rgba(14,26,22,.90) 62%,var(--ink) 100%);
}
.hero-inner{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--on-dark);margin-bottom:22px}
.breadcrumb a{color:var(--on-dark);transition:color .2s}
.breadcrumb a:hover{color:var(--signal)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:var(--sand)}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px}
}
.hero-title{
  margin:18px 0 0;
  font-size:clamp(2rem,5vw,3.4rem);
  line-height:1.12;letter-spacing:-.02em;font-weight:800;
  color:var(--sand);max-width:18em;
}
.hero-sub{margin-top:16px;font-size:clamp(15px,1.5vw,17px);color:var(--on-dark);max-width:34em}
.spec-row{
  display:flex;flex-wrap:wrap;gap:0;
  margin-top:28px;padding-top:18px;border-top:1px solid var(--line-dark);
}
.spec{padding-right:22px;margin-right:22px;border-right:1px solid var(--line-dark);display:flex;flex-direction:column}
.spec:last-child{border-right:0;margin-right:0;padding-right:0}
.spec b{font-family:var(--mono);font-size:22px;color:var(--signal);line-height:1.2}
.spec span{font-size:12.5px;color:var(--on-dark);margin-top:2px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-media{
  border:1px solid var(--line-dark);border-radius:var(--r-img);overflow:hidden;
  background:rgba(255,255,255,.04);
}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ---------- 锚点胶囊条 ---------- */
.filter-bar{background:var(--sand);border-bottom:1px solid var(--line)}
.filter-inner{display:flex;gap:8px;overflow-x:auto;padding-top:16px;padding-bottom:16px;scrollbar-width:none}
.filter-inner::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;
  padding:8px 16px;border-radius:999px;font-size:14px;
  border:1px solid var(--line);background:#fff;color:var(--muted);
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.chip:hover{border-color:var(--ink);color:var(--ink)}
.chip.active{background:var(--ink);border-color:var(--ink);color:var(--sand);font-weight:600}

/* ---------- 区块 ---------- */
.section{padding:64px 0}
@media (min-width:768px){.section{padding:96px 0}}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-dark{background:var(--ink);color:var(--sand);position:relative;overflow:hidden}
.section-dark::before{
  content:"";position:absolute;inset:0;
  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;pointer-events:none;
}
.section-dark .container{position:relative;z-index:2}
[id]{scroll-margin-top:104px}

.sec-head{max-width:760px;margin-bottom:36px}
@media (min-width:768px){.sec-head{margin-bottom:52px}}
.sec-no{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:34px;height:26px;padding:0 8px;border-radius:4px;
  background:var(--signal);color:var(--ink);
  font-family:var(--mono);font-size:13px;font-weight:700;
}
.sec-title{
  margin-top:16px;font-size:clamp(1.5rem,3vw,2.25rem);line-height:1.22;
  letter-spacing:-.015em;font-weight:800;color:var(--ink);
}
.section-dark .sec-title{color:var(--sand)}
.sec-desc{margin-top:14px;color:var(--muted);font-size:15.5px;max-width:62ch}
.section-dark .sec-desc{color:var(--on-dark)}
.sec-head-split{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;max-width:none}

/* ---------- 卡片 ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:24px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.card:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.card h3{font-size:17px;font-weight:700;margin-bottom:8px;color:var(--ink);transition:color .2s var(--ease)}
.card:hover h3{color:#2E4A3C}
.card p{font-size:14.5px;color:var(--muted);line-height:1.72}

.scene-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.scene-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.scene-grid{grid-template-columns:repeat(3,1fr);gap:24px}}
.scene-card .scene-no{
  font-family:var(--mono);font-size:12.5px;color:var(--muted);
  display:block;margin-bottom:12px;letter-spacing:.08em;
}
.scene-card h3{font-size:17px}

/* ---------- 左图右文交错长条 ---------- */
.plan-row{
  display:grid;grid-template-columns:1fr;gap:26px;align-items:center;
  padding:28px 0;border-top:1px solid var(--line);
}
.plan-row:first-of-type{border-top:0;padding-top:0}
@media (min-width:900px){
  .plan-row{grid-template-columns:minmax(0,1.02fr) minmax(0,1fr);gap:56px;padding:40px 0}
  .plan-row.reverse .plan-media{order:2}
}
.plan-media{
  position:relative;border:1px solid var(--line);border-radius:var(--r-img);
  overflow:hidden;background:#fff;
}
.plan-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s var(--ease)}
.plan-row:hover .plan-media img{transform:scale(1.02)}
.plan-media .plan-num{
  position:absolute;left:14px;top:14px;
  padding:4px 10px;border-radius:4px;
  background:var(--signal);color:var(--ink);
  font-family:var(--mono);font-size:12.5px;font-weight:700;
}
.plan-body h3{font-size:clamp(1.15rem,2vw,1.45rem);font-weight:800;color:var(--ink);letter-spacing:-.01em}
.plan-body > p{margin-top:14px;color:var(--muted);font-size:15.5px;max-width:60ch}
.plan-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.plan-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:22px}
.plan-meta .meta-txt{font-size:13px;color:var(--muted)}
.plan-meta .rule-ticks{flex:1 1 60px;min-width:40px}

/* ---------- 流程时间线 ---------- */
.flow-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.flow-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.flow-grid{grid-template-columns:repeat(5,1fr);gap:18px}}
.flow-step{
  position:relative;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 20px;box-shadow:var(--shadow-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.flow-step:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-3px)}
.flow-step .flow-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:24px;border-radius:4px;background:var(--ink);color:var(--signal);
  font-family:var(--mono);font-size:12.5px;font-weight:700;
}
.flow-step h3{margin-top:14px;font-size:16px;font-weight:700;color:var(--ink)}
.flow-step p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.7}

/* ---------- 深色证据区 ---------- */
.proof-stats{display:grid;grid-template-columns:1fr;gap:24px;margin-bottom:40px}
@media (min-width:768px){.proof-stats{grid-template-columns:repeat(3,1fr);gap:32px}}
.proof-stat{border-left:2px solid var(--signal);padding-left:18px}
.proof-stat b{font-family:var(--mono);font-size:clamp(1.9rem,4vw,2.6rem);font-weight:700;color:var(--signal);line-height:1.1;display:block}
.proof-stat span{display:block;margin-top:8px;font-size:14px;color:var(--on-dark)}
.badge-wall{display:flex;flex-wrap:wrap;gap:10px;padding-top:28px;border-top:1px solid var(--line-dark)}
.proof-note{margin-top:26px;font-size:13.5px;color:var(--on-dark)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item.open{border-color:var(--ink);box-shadow:var(--shadow-2)}
.faq-q{
  display:flex;align-items:center;gap:16px;width:100%;
  padding:18px 20px;text-align:left;
}
.faq-no{
  font-family:var(--mono);font-size:13px;color:var(--muted);flex:0 0 auto;
}
.faq-item.open .faq-no{color:var(--ink)}
.faq-text{flex:1;font-size:15.5px;font-weight:600;color:var(--ink)}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 auto}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;
  transition:transform .25s var(--ease),opacity .2s var(--ease);
}
.faq-icon::before{left:0;top:8px;width:18px;height:1.8px}
.faq-icon::after{top:0;left:8px;height:18px;width:1.8px}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-a-inner{padding:0 20px 20px 54px;font-size:14.5px;color:var(--muted);line-height:1.8}
.faq-a-inner p{max-width:70ch}

/* ---------- 相关分类 ---------- */
.rel-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.rel-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.rel-grid{grid-template-columns:repeat(3,1fr);gap:24px}}
.rel-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.rel-card:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.rel-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.rel-body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
.rel-body h3{font-size:16.5px;font-weight:700;color:var(--ink)}
.rel-body p{font-size:14px;color:var(--muted);line-height:1.7}
.rel-body .rel-link{margin-top:auto;padding-top:12px;font-size:13.5px;font-weight:700;color:var(--ink)}
.rel-body .rel-link .arrow{transition:transform .2s var(--ease);display:inline-block}
.rel-card:hover .rel-link .arrow{transform:translateX(4px)}

/* ---------- 表单 / CTA 条 ---------- */
.cta-band{
  background:#fff;border:1px solid var(--line);border-radius:22px;
  padding:32px 24px;display:grid;gap:24px;align-items:center;
  box-shadow:var(--shadow-1);
}
@media (min-width:900px){
  .cta-band{grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);padding:40px 44px;gap:40px}
}
.cta-band h2{font-size:clamp(1.35rem,2.6vw,1.9rem);font-weight:800;color:var(--ink);line-height:1.25;letter-spacing:-.015em}
.cta-band p{margin-top:10px;font-size:14.8px;color:var(--muted);max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (min-width:900px){.cta-actions{justify-content:flex-end}}
.form-grid{display:grid;gap:16px;margin-top:24px}
@media (min-width:768px){.form-grid{grid-template-columns:repeat(3,1fr)}}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:13.5px;font-weight:600;color:var(--ink)}
.field input,.field textarea{
  width:100%;padding:12px 14px;font:inherit;font-size:14.5px;
  background:#fff;border:1px solid var(--line);border-radius:10px;color:var(--text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--signal);box-shadow:0 0 0 3px rgba(199,240,74,.35);
}
.field .hint{font-size:12.5px;color:var(--muted)}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:75;
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 22px;border-radius:999px;
  background:var(--signal);color:var(--ink);font-weight:700;font-size:14.5px;
  box-shadow:0 10px 26px -12px rgba(14,26,22,.45);
  opacity:0;transform:translateY(10px);pointer-events:none;
  transition:opacity .25s var(--ease),transform .25s var(--ease),background .2s var(--ease);
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{background:var(--signal-dark)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--sand);padding:56px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;padding:34px 0 30px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand span:last-child{font-size:17px;font-weight:700;color:var(--sand)}
.site-footer p{font-size:14px;color:var(--on-dark);line-height:1.8;max-width:42ch}
.footer-title{font-size:13px;letter-spacing:.12em;color:var(--signal);font-family:var(--mono);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14.5px;color:var(--on-dark);transition:color .2s var(--ease)}
.footer-links a:hover{color:var(--signal)}
.footer-contact{display:flex;flex-direction:column;gap:10px}
.footer-contact span{font-size:14px;color:var(--on-dark)}
.footer-contact b{color:var(--sand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding-top:20px;border-top:1px solid var(--line-dark);
  font-size:13px;color:var(--on-dark);
}

/* ---------- 移动端 ---------- */
@media (max-width:1023.9px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:flex}
}
@media (max-width:767.9px){
  .header-wrap{top:10px;padding:0 12px}
  .nav-shell{padding:8px 8px 8px 14px}
  .hero{padding:112px 0 52px}
  .spec{padding-right:16px;margin-right:16px}
  .spec b{font-size:19px}
  .float-cta{
    left:12px;right:12px;bottom:12px;height:52px;justify-content:center;
    border-radius:14px;
  }
  .faq-a-inner{padding-left:20px}
  .cta-band{padding:26px 20px;border-radius:18px}
  .site-footer{padding-bottom:88px}
}
@media (max-width:519.9px){
  .brand-text{font-size:15px}
  .hero-title{font-size:clamp(1.7rem,7.5vw,2.1rem)}
  .sec-title{font-size:1.35rem}
  .card{padding:20px}
}

/* roulang page: category3 */
:root{
  --ink:#0E1A16;
  --ink-2:#16241F;
  --signal:#C7F04A;
  --signal-strong:#B4E02F;
  --amber:#FF7A29;
  --bg:#F5F3EE;
  --card:#FFFFFF;
  --line:#E3E0D8;
  --line-dark:#2A3833;
  --text:#1B1F1D;
  --muted:#5C6660;
  --on-dark:#F5F3EE;
  --on-dark-soft:rgba(245,243,238,.68);
  --radius-card:14px;
  --radius-img:10px;
  --shadow-card:0 1px 2px rgba(14,26,22,.05);
  --shadow-hover:0 14px 30px -18px rgba(14,26,22,.28);
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Courier New",monospace;
  --font:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:15.5px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
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;background:none;border:0}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:6px}
::selection{background:var(--signal);color:var(--ink)}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}

.container{width:100%;max-width:1280px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px}}

/* ---------- 装饰刻度 ---------- */
.rule-ticks{
  height:9px;
  background-image:linear-gradient(90deg,var(--line) 0 1px,transparent 1px 100%),
                   linear-gradient(90deg,var(--line-dark) 0 1px,transparent 1px 100%);
  background-size:34px 100%;
  background-repeat:repeat-x;
  background-position:0 0,0 100%;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  opacity:.9;
}
.rule-ticks.on-dark{border-color:var(--line-dark);background-image:linear-gradient(90deg,var(--line-dark) 0 1px,transparent 1px 100%);border-bottom:0}
.eyebrow{
  font-family:var(--mono);
  font-size:12.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--signal-strong);
  display:inline-flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:currentColor;display:inline-block}
.eyebrow.on-light{color:#6F7A73}
.section-num{
  font-family:var(--mono);font-size:13px;color:var(--signal-strong);
  border:1px solid currentColor;border-radius:4px;padding:1px 7px;display:inline-block;
}

/* ---------- 导航 ---------- */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:60;padding:0 16px;transition:top .25s ease}
.header-inner{
  max-width:1280px;margin:0 auto;
  display:flex;align-items:center;gap:18px;
  padding:9px 12px 9px 18px;
  border-radius:999px;
  background:rgba(245,243,238,.82);
  border:1px solid rgba(227,224,216,.85);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:0 1px 2px rgba(14,26,22,.05);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.scrolled .header-inner{
  background:rgba(245,243,238,.95);
  border-color:var(--line);
  box-shadow:0 12px 28px -20px rgba(14,26,22,.45);
}
.brand{display:inline-flex;align-items:center;gap:9px;flex-shrink:0}
.brand-mark{
  font-family:var(--mono);font-weight:700;font-size:13px;letter-spacing:.06em;
  background:var(--ink);color:var(--signal);
  padding:5px 8px;border-radius:4px;line-height:1;
}
.brand-text{font-weight:700;font-size:16px;letter-spacing:.01em;color:var(--ink);white-space:nowrap}
.nav-links{display:none;align-items:center;gap:2px;margin-left:auto}
.nav-links a{
  position:relative;display:inline-block;
  padding:8px 14px;border-radius:999px;
  font-size:14.5px;color:#46514B;
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--ink);background:rgba(14,26,22,.06)}
.nav-links a.active{background:var(--ink);color:var(--signal);font-weight:600}
.header-cta{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-links + .header-cta{margin-left:14px}
@media (min-width:1024px){
  .nav-links{display:flex}
  .nav-toggle{display:none}
}
.nav-toggle{
  width:40px;height:40px;border-radius:999px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;background:#fff;
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--ink);position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--ink);border-radius:2px}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}
.mobile-drawer{
  display:none;
  max-width:1280px;margin:10px auto 0;
  background:rgba(245,243,238,.98);
  border:1px solid var(--line);border-radius:22px;
  padding:14px;box-shadow:0 20px 40px -28px rgba(14,26,22,.6);
  backdrop-filter:blur(14px);
}
.mobile-drawer.open{display:block}
.mobile-drawer a{
  display:block;padding:12px 14px;border-radius:14px;font-size:15px;color:#323B37;
  border:1px solid transparent;
}
.mobile-drawer a:hover{background:#fff;border-color:var(--line)}
.mobile-drawer a.active{background:var(--ink);color:var(--signal);font-weight:600}
@media (min-width:1024px){.mobile-drawer{display:none !important}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:600;font-size:14.5px;
  padding:11px 20px;border:1.5px solid transparent;
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--signal);color:var(--ink);border-color:var(--signal)}
.btn-primary:hover{background:var(--signal-strong);border-color:var(--signal-strong);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--ink);border-color:rgba(14,26,22,.55)}
.btn-ghost:hover{background:var(--ink);color:var(--on-dark);border-color:var(--ink)}
.btn-dark{background:var(--ink);color:var(--on-dark);border-color:var(--ink)}
.btn-dark:hover{background:#1D2E27;border-color:#1D2E27;transform:translateY(-1px)}
.btn-amber{background:transparent;color:var(--amber);border-color:var(--amber)}
.btn-amber:hover{background:var(--amber);color:#1B120A}
.btn-sm{padding:8px 15px;font-size:13.5px}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--ink);
  border-bottom:1.5px solid transparent;padding:2px 0;transition:color .2s ease;
}
.btn-link .arrow{transition:transform .2s ease}
.btn-link:hover{color:#2B6B3F}
.btn-link:hover .arrow{transform:translateX(4px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;line-height:1;padding:6px 11px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:#4B554F;
}
.badge-signal{background:rgba(199,240,74,.22);border-color:rgba(140,180,30,.45);color:#3E5510}
.badge-dark{background:rgba(255,255,255,.05);border-color:var(--line-dark);color:var(--on-dark-soft)}
.tag{
  font-size:12px;padding:4px 9px;border-radius:999px;
  border:1px solid var(--line);color:var(--muted);background:#fff;
}

/* ---------- Hero ---------- */
.page-hero{
  background:var(--ink);
  color:var(--on-dark);
  padding:132px 0 0;
  position:relative;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  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:64px 64px;
  pointer-events:none;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 82%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 82%);
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr;gap:36px;
  padding-bottom:56px;
}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding-bottom:72px}
}
.breadcrumb{font-size:13px;color:var(--on-dark-soft);display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:20px}
.breadcrumb a{color:var(--on-dark-soft);transition:color .2s ease}
.breadcrumb a:hover{color:var(--signal)}
.breadcrumb .sep{opacity:.45}
.breadcrumb .current{color:var(--on-dark);max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-hero h1{
  font-size:clamp(2rem,5vw,3.25rem);
  line-height:1.12;letter-spacing:-.02em;
  margin:16px 0 18px;
  color:#fff;
}
.page-hero h1 em{font-style:normal;color:var(--signal)}
.hero-sub{font-size:16px;color:var(--on-dark-soft);max-width:70ch;margin-bottom:14px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-figure{
  border:1px solid var(--line-dark);
  border-radius:var(--radius-card);
  overflow:hidden;background:rgba(255,255,255,.04);
  padding:10px;
}
.hero-figure img{border-radius:var(--radius-img);width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}
.hero-figure figcaption{
  font-size:13px;color:var(--on-dark-soft);padding:10px 4px 2px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
}
.metric-strip{
  position:relative;z-index:2;
  border-top:1px solid var(--line-dark);
  display:grid;grid-template-columns:repeat(2,1fr);
}
@media (min-width:768px){.metric-strip{grid-template-columns:repeat(4,1fr)}}
.metric-strip .metric{
  padding:20px 18px;border-right:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark);
}
.metric-strip .metric:last-child{border-right:0}
.metric .m-val{font-family:var(--mono);font-size:clamp(1.35rem,2.4vw,1.9rem);color:var(--signal);line-height:1.2}
.metric .m-label{font-size:13px;color:var(--on-dark-soft);margin-top:6px}

/* ---------- 锚点筛选条 ---------- */
.filter-bar{
  position:sticky;top:88px;z-index:30;
  display:flex;gap:10px;overflow-x:auto;padding:14px 0 6px;
  scrollbar-width:none;
}
.filter-bar::-webkit-scrollbar{display:none}
.filter-chip{
  flex:0 0 auto;font-size:13.5px;padding:9px 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:#4B554F;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.filter-chip:hover{border-color:var(--ink);color:var(--ink)}
.filter-chip.active{background:var(--ink);border-color:var(--ink);color:var(--signal);font-weight:600}

/* ---------- 通用板块 ---------- */
.section{padding:64px 0}
@media (min-width:768px){.section{padding:92px 0}}
.section-dark{background:var(--ink);color:var(--on-dark)}
.section-dark .section-title{color:#fff}
.section-head{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:space-between;margin-bottom:34px}
.section-title{font-size:clamp(1.5rem,3vw,2.15rem);letter-spacing:-.02em}
.section-desc{color:var(--muted);max-width:72ch;margin-top:12px}
.section-dark .section-desc{color:var(--on-dark-soft)}

/* ---------- 证据卡网格 ---------- */
.evidence-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.evidence-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.evidence-grid{grid-template-columns:repeat(3,1fr);gap:24px}}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:box-shadow .2s ease,border-color .2s ease,transform .2s ease;
}
.card:hover{border-color:rgba(14,26,22,.6);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.card-img{position:relative;aspect-ratio:4/3;overflow:hidden;background:#E9E6DE}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-img img{transform:scale(1.035)}
.card-img .badge{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.94)}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:17px;line-height:1.4}
.card:hover .card-title{color:#2B6B3F}
.card-text{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-specs{
  display:grid;grid-template-columns:repeat(2,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:10px;overflow:hidden;margin-top:2px;
}
.card-specs .spec{background:#fff;padding:10px 12px}
.card-specs .spec b{display:block;font-family:var(--mono);font-size:13.5px;color:var(--ink);font-weight:600}
.card-specs .spec span{font-size:11.5px;color:var(--muted);letter-spacing:.02em}
.card-foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:12px}

/* ---------- 数据条（深色） ---------- */
.data-row{display:grid;grid-template-columns:1fr;gap:1px;background:var(--line-dark);border:1px solid var(--line-dark);border-radius:var(--radius-card);overflow:hidden}
@media (min-width:768px){.data-row{grid-template-columns:repeat(4,1fr)}}
.data-cell{background:rgba(255,255,255,.03);padding:26px 22px}
.data-cell .d-val{font-family:var(--mono);font-size:clamp(1.6rem,2.8vw,2.2rem);color:var(--signal);line-height:1.1}
.data-cell .d-unit{font-size:14px;color:var(--on-dark-soft);margin-left:4px}
.data-cell .d-label{font-size:13.5px;color:var(--on-dark-soft);margin-top:10px}
.data-cell .d-note{font-size:12.5px;color:rgba(245,243,238,.45);margin-top:6px}

/* ---------- 徽章墙 ---------- */
.badge-wall{display:flex;flex-wrap:wrap;gap:10px}
.badge-wall .badge{padding:9px 15px;font-size:13px}
.dark-card{background:rgba(255,255,255,.04);border:1px solid var(--line-dark);border-radius:var(--radius-card);padding:24px}

/* ---------- 流程时间线 ---------- */
.timeline{display:grid;grid-template-columns:1fr;gap:18px;counter-reset:step}
@media (min-width:768px){.timeline{grid-template-columns:repeat(4,1fr);gap:20px}}
.tl-item{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px 20px 24px;box-shadow:var(--shadow-card);transition:box-shadow .2s ease,border-color .2s ease}
.tl-item:hover{border-color:rgba(14,26,22,.55);box-shadow:var(--shadow-hover)}
.tl-item .tl-num{
  font-family:var(--mono);font-size:12px;color:var(--ink);background:var(--signal);
  border-radius:4px;padding:3px 8px;display:inline-block;
}
.tl-item h3{font-size:16px;margin:14px 0 8px}
.tl-item p{font-size:13.5px;color:var(--muted)}
.tl-item::after{
  content:"";position:absolute;right:14px;top:26px;width:34px;height:1px;
  background:repeating-linear-gradient(90deg,var(--line) 0 4px,transparent 4px 8px);
}

/* ---------- 图文交错长条 ---------- */
.split{display:grid;grid-template-columns:1fr;gap:24px;align-items:center}
@media (min-width:1024px){.split{grid-template-columns:1fr 1fr;gap:44px}}
.split-media img{border-radius:var(--radius-card);border:1px solid var(--line);aspect-ratio:16/10;object-fit:cover;width:100%}
.split h3{font-size:clamp(1.15rem,2vw,1.5rem);margin-bottom:12px}
.split p{color:var(--muted)}
.check-list{margin-top:20px;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px}
.check-list li::before{
  content:"";flex:0 0 18px;height:18px;margin-top:4px;border-radius:4px;
  background:var(--signal);clip-path:polygon(14% 46%,36% 68%,86% 16%,100% 30%,38% 92%,0 58%);
}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.open{border-color:rgba(14,26,22,.6);box-shadow:var(--shadow-hover)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  padding:18px 20px;font-size:15.5px;font-weight:600;color:var(--text);
}
.faq-q .q-num{font-family:var(--mono);font-size:12.5px;color:var(--muted);flex:0 0 auto}
.faq-q .q-icon{
  margin-left:auto;flex:0 0 24px;width:24px;height:24px;border-radius:999px;
  border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:15px;color:var(--ink);transition:background .2s ease,color .2s ease,transform .2s ease;
}
.faq-item.open .q-icon{background:var(--ink);color:var(--signal);border-color:var(--ink);transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a-inner{padding:0 20px 20px 54px;color:var(--muted);font-size:14.5px}
@media (max-width:520px){.faq-a-inner{padding-left:20px}}

/* ---------- 相关分类 ---------- */
.rel-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:768px){.rel-grid{grid-template-columns:repeat(3,1fr)}}
.rel-card{
  display:flex;flex-direction:column;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 20px;box-shadow:var(--shadow-card);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.rel-card:hover{border-color:rgba(14,26,22,.6);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.rel-card h3{font-size:17px}
.rel-card p{font-size:14px;color:var(--muted)}

/* ---------- CTA 条 ---------- */
.cta-bar{
  background:var(--card);border:1px solid var(--line);border-radius:22px;
  padding:28px 24px;display:flex;flex-direction:column;gap:20px;
  box-shadow:var(--shadow-card);
}
@media (min-width:768px){
  .cta-bar{flex-direction:row;align-items:center;justify-content:space-between;padding:34px 36px;gap:32px}
}
.cta-bar h2{font-size:clamp(1.25rem,2.4vw,1.75rem)}
.cta-bar p{color:var(--muted);margin-top:8px;font-size:14.5px;max-width:60ch}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--on-dark-soft);padding:56px 0 28px;margin-top:12px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding:32px 0 28px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1.2fr;gap:40px}}
.footer-brand{display:inline-flex;align-items:center;gap:9px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px}
.footer-brand .brand-mark{background:var(--signal);color:var(--ink)}
.site-footer p{font-size:14px;max-width:44ch;line-height:1.85}
.footer-title{color:#fff;font-size:14px;font-weight:600;margin-bottom:14px;letter-spacing:.02em}
.footer-links{display:grid;gap:9px}
.footer-links a{font-size:14px;transition:color .2s ease}
.footer-links a:hover{color:var(--signal)}
.footer-contact{display:grid;gap:9px;font-size:14px}
.footer-contact b{color:var(--signal)}
.footer-bottom{
  border-top:1px solid var(--line-dark);padding-top:20px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(245,243,238,.55);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:55;
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease;
  box-shadow:0 16px 34px -18px rgba(14,26,22,.6);
}
.float-cta.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:55;
  display:none;padding:8px 14px calc(8px + env(safe-area-inset-bottom));
  background:rgba(14,26,22,.96);border-top:1px solid var(--line-dark);
}
.mobile-bar .btn{width:100%;height:44px}
@media (max-width:767px){
  .mobile-bar{display:block}
  .float-cta{display:none}
  body{padding-bottom:64px}
  .page-hero{padding-top:112px}
  .filter-bar{top:78px}
}

/* roulang page: category4 */
:root{
  --ink:#0E1A16;
  --ink-2:#122019;
  --signal:#C7F04A;
  --signal-hover:#B4E02F;
  --amber:#FF7A29;
  --sand:#F5F3EE;
  --card:#FFFFFF;
  --line:#E3E0D8;
  --line-dark:#2A3833;
  --text:#1B1F1D;
  --muted:#5C6660;
  --radius-card:14px;
  --radius-img:10px;
  --shadow-1:0 1px 2px rgba(14,26,22,.05);
  --shadow-2:0 14px 30px -18px rgba(14,26,22,.28);
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:15.5px;
  line-height:1.75;
  color:var(--text);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.2;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:6px;}
.num{font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ---------- 装饰刻度线 ---------- */
.rule-ticks{
  position:relative;height:9px;width:100%;
  background-image:repeating-linear-gradient(to right,#C9C5B8 0 1px,transparent 1px 16px);
  background-position:0 0;background-repeat:repeat-x;background-size:16px 9px;
  border-top:1px solid var(--line);
}
.rule-ticks.on-dark{
  border-top:1px solid var(--line-dark);
  background-image:repeating-linear-gradient(to right,#3A4A44 0 1px,transparent 1px 16px);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--signal);display:block;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:999px;font-size:14.5px;font-weight:600;
  border:1.5px solid transparent;transition:all var(--ease);white-space:nowrap;
}
.btn-primary{background:var(--signal);color:var(--ink);}
.btn-primary:hover{background:var(--signal-hover);transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(14,26,22,.5);}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-outline:hover{background:var(--ink);color:var(--sand);}
.btn-ghost{padding:10px 0;color:var(--ink);border-radius:6px;}
.btn-ghost .arw{transition:transform var(--ease);}
.btn-ghost:hover .arw{transform:translateX(4px);}
.btn-sm{padding:9px 18px;font-size:13.5px;}
.btn-on-dark{border-color:rgba(245,243,238,.4);color:var(--sand);}
.btn-on-dark:hover{background:var(--sand);color:var(--ink);border-color:var(--sand);}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  border:1px solid var(--line);background:#fff;color:var(--muted);
}
.badge-signal{background:rgba(199,240,74,.18);border-color:rgba(199,240,74,.55);color:#3F5210;}
.badge-amber{background:rgba(255,122,41,.10);border-color:rgba(255,122,41,.45);color:#9A4410;}
.badge-dark{background:rgba(255,255,255,.04);border-color:var(--line-dark);color:rgba(245,243,238,.72);}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  padding:16px 0;transition:padding var(--ease);
}
.nav-shell{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:10px 14px 10px 18px;
  border-radius:999px;
  background:rgba(245,243,238,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(227,224,216,.9);
  box-shadow:0 6px 22px -18px rgba(14,26,22,.4);
  transition:all var(--ease);
}
.site-header.scrolled{padding:10px 0;}
.site-header.scrolled .nav-shell{
  background:rgba(245,243,238,.96);
  border-color:var(--line);
  box-shadow:0 10px 28px -18px rgba(14,26,22,.45);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:26px;border-radius:4px;background:var(--ink);color:var(--signal);
  font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  font-size:13px;font-weight:700;letter-spacing:.04em;
}
.brand-text{font-size:15.5px;font-weight:700;letter-spacing:-.01em;color:var(--ink);}
.nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:center;}
.nav-links a{
  position:relative;padding:8px 14px;border-radius:999px;
  font-size:14px;color:#3D453F;transition:all var(--ease);white-space:nowrap;
}
.nav-links a:hover{color:var(--ink);background:rgba(14,26,22,.05);}
.nav-links a.active{color:var(--ink);font-weight:700;background:rgba(199,240,74,.28);}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:999px;
  border:1px solid var(--line);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--ink);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--ink);transition:all var(--ease);
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}

@media (max-width:980px){
  .nav-links{
    position:fixed;inset:74px 12px auto 12px;
    flex-direction:column;align-items:stretch;gap:2px;
    background:rgba(245,243,238,.98);backdrop-filter:blur(16px);
    border:1px solid var(--line);border-radius:24px;padding:14px;
    box-shadow:0 24px 48px -28px rgba(14,26,22,.5);
    display:none;
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:13px 16px;font-size:15.5px;border-radius:14px;}
  .nav-toggle{display:inline-flex;}
  .nav-shell{padding:8px 10px 8px 14px;}
}
@media (max-width:520px){
  .nav-actions .btn-sm{display:none;}
}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;
  background:var(--ink);
  color:var(--sand);
  padding:132px 0 72px;
  overflow:hidden;
}
.page-head::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.28;
}
.page-head::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(14,26,22,.96) 0%,rgba(14,26,22,.82) 48%,rgba(14,26,22,.55) 100%);
}
.page-head .container{position:relative;z-index:2;}
.page-head-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(245,243,238,.6);margin-bottom:20px;
}
.breadcrumb a:hover{color:var(--signal);}
.breadcrumb .sep{opacity:.5;}
.page-head h1{
  font-size:clamp(2rem,5vw,3.35rem);line-height:1.12;letter-spacing:-.02em;
  color:#fff;margin-bottom:18px;
}
.page-head h1 em{font-style:normal;color:var(--signal);}
.page-lead{
  max-width:62ch;font-size:16px;line-height:1.8;color:rgba(245,243,238,.78);margin-bottom:26px;
}
.head-stats{
  display:flex;flex-wrap:wrap;gap:26px;padding-top:22px;border-top:1px solid var(--line-dark);
}
.head-stats div{min-width:110px;}
.head-stats b{
  display:block;font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  font-size:26px;color:var(--signal);letter-spacing:-.02em;line-height:1.2;
}
.head-stats span{font-size:12.5px;color:rgba(245,243,238,.6);}
.head-media{
  border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line-dark);
  background:rgba(255,255,255,.04);
}
.head-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.head-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:8px;}

@media (max-width:900px){
  .page-head{padding:118px 0 56px;}
  .page-head-grid{grid-template-columns:1fr;gap:32px;}
  .head-media{order:2;}
}

/* ---------- 通用板块 ---------- */
.section{padding:64px 0;}
@media (min-width:768px){.section{padding:96px 0;}}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{font-size:clamp(1.5rem,3vw,2.25rem);margin:14px 0 14px;}
.section-head p{color:var(--muted);font-size:15.5px;}
.section-dark{background:var(--ink);color:var(--sand);}
.section-dark .section-head p{color:rgba(245,243,238,.68);}

/* ---------- 锚点筛选胶囊条 ---------- */
.filter-bar{
  display:flex;gap:10px;overflow-x:auto;padding:6px 0 14px;
  scrollbar-width:thin;-webkit-overflow-scrolling:touch;
}
.filter-bar::-webkit-scrollbar{height:4px;}
.filter-bar::-webkit-scrollbar-thumb{background:var(--line);border-radius:99px;}
.filter-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:999px;border:1px solid var(--line);
  background:#fff;color:var(--muted);font-size:13.5px;font-weight:600;
  white-space:nowrap;transition:all var(--ease);
}
.filter-chip:hover{border-color:var(--ink);color:var(--ink);}
.filter-chip.active{background:var(--ink);border-color:var(--ink);color:var(--signal);}
.filter-chip .n{font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;font-size:12px;opacity:.7;}

/* ---------- 服务条目列表 ---------- */
.svc-list{display:flex;flex-direction:column;gap:14px;}
.svc-item{
  display:grid;grid-template-columns:78px 1fr 250px;gap:26px;align-items:start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 26px;box-shadow:var(--shadow-1);transition:all var(--ease);
  scroll-margin-top:110px;
}
.svc-item:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.svc-no{
  font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  font-size:22px;font-weight:700;color:var(--ink);line-height:1;
  padding:8px 10px;border-left:3px solid var(--signal);background:#F8F7F2;border-radius:0 4px 4px 0;
}
.svc-body h3{font-size:1.2rem;margin-bottom:10px;}
.svc-item:hover .svc-body h3{color:#5E7A12;}
.svc-body p{color:var(--muted);font-size:14.5px;margin-bottom:14px;max-width:66ch;}
.svc-points{display:flex;flex-wrap:wrap;gap:8px;}
.svc-points li{
  font-size:12.5px;color:#3D453F;background:#F6F5F0;
  border:1px solid var(--line);border-radius:999px;padding:4px 12px;
}
.svc-meta{border-left:1px solid var(--line);padding-left:22px;}
.svc-meta dt{font-size:12px;color:var(--muted);letter-spacing:.06em;margin-bottom:2px;}
.svc-meta dd{
  margin:0 0 14px;font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  font-size:14.5px;color:var(--ink);font-weight:600;
}
.svc-meta dd:last-child{margin-bottom:0;}
.svc-meta dd.hl{color:#8A4A0D;}

@media (max-width:1024px){
  .svc-item{grid-template-columns:64px 1fr;gap:18px;}
  .svc-meta{grid-column:1 / -1;border-left:0;border-top:1px solid var(--line);padding:16px 0 0;display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
  .svc-meta dd{margin-bottom:0;}
}
@media (max-width:640px){
  .svc-item{grid-template-columns:1fr;padding:22px 18px;}
  .svc-no{display:inline-block;font-size:18px;}
  .svc-meta{grid-template-columns:1fr 1fr;}
}

/* ---------- 数据条 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:var(--line-dark);border:1px solid var(--line-dark);
  border-radius:var(--radius-card);overflow:hidden;
}
.stat-strip > div{background:rgba(255,255,255,.035);padding:30px 26px;}
.stat-strip b{
  display:block;font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  font-size:clamp(1.8rem,3.4vw,2.4rem);color:var(--signal);line-height:1.1;letter-spacing:-.02em;
}
.stat-strip h3{font-size:15px;margin:10px 0 6px;color:#fff;}
.stat-strip p{font-size:13.5px;color:rgba(245,243,238,.66);}
@media (max-width:768px){.stat-strip{grid-template-columns:1fr;}}

/* ---------- 服务流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.flow-step{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;position:relative;transition:all var(--ease);
}
.flow-step:hover{border-color:var(--ink);box-shadow:var(--shadow-2);}
.flow-step .tag{
  font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  font-size:11.5px;letter-spacing:.12em;color:#7A847D;
}
.flow-step h3{font-size:1.02rem;margin:12px 0 8px;}
.flow-step p{font-size:13.5px;color:var(--muted);}
@media (max-width:900px){.flow{grid-template-columns:1fr 1fr;}}
@media (max-width:560px){.flow{grid-template-columns:1fr;}}

/* ---------- 表单 ---------- */
.form-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:30px;box-shadow:var(--shadow-1);scroll-margin-top:110px;
}
@media (min-width:768px){.form-panel{padding:40px;}}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13.5px;font-weight:600;color:#333A35;}
.field .hint{font-size:12.5px;color:var(--muted);}
.field input,.field select,.field textarea{
  width:100%;background:#fff;border:1px solid var(--line);border-radius:10px;
  padding:12px 14px;font-size:14.5px;color:var(--text);transition:all var(--ease);
}
.field textarea{min-height:130px;resize:vertical;}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#C4BFB2;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--signal);box-shadow:0 0 0 3px rgba(199,240,74,.28);
}
.form-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:24px;}
.form-note{font-size:12.5px;color:var(--muted);}
.form-msg{
  margin-top:18px;padding:14px 16px;border-radius:10px;font-size:14px;display:none;
  border:1px solid rgba(199,240,74,.6);background:rgba(199,240,74,.14);color:#3F5210;
}
.form-msg.show{display:block;}
@media (max-width:700px){.form-grid{grid-template-columns:1fr;}}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item.open{border-color:var(--ink);box-shadow:var(--shadow-2);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:20px 22px;font-size:15.5px;font-weight:600;color:var(--ink);
}
.faq-q .idx{
  font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  font-size:13px;color:#7A847D;flex:0 0 auto;
}
.faq-q .txt{flex:1 1 auto;}
.faq-q .sign{
  flex:0 0 auto;width:24px;height:24px;border-radius:999px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;color:var(--muted);
  transition:all var(--ease);
}
.faq-item.open .faq-q .sign{background:var(--signal);border-color:var(--signal);color:var(--ink);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height 320ms ease;
}
.faq-a-inner{padding:0 22px 22px 63px;color:var(--muted);font-size:14.5px;line-height:1.8;}
@media (max-width:640px){
  .faq-q{padding:16px;gap:12px;font-size:14.5px;}
  .faq-a-inner{padding:0 16px 18px 44px;}
}

/* ---------- 卡片网格（互链） ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
@media (max-width:1024px){.card-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:680px){.card-grid{grid-template-columns:1fr;}}
.card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:all var(--ease);
}
.card:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-3px);}
.card-img{aspect-ratio:4/3;overflow:hidden;background:#EFEDE6;}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform 400ms ease;}
.card:hover .card-img img{transform:scale(1.04);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card-body h3{font-size:1.05rem;transition:color var(--ease);}
.card:hover .card-body h3{color:#5E7A12;}
.card-body p{font-size:13.8px;color:var(--muted);}
.card-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:#7A847D;padding-top:12px;border-top:1px solid var(--line);
}
.card-cta{color:var(--ink);font-weight:600;font-size:13px;}

/* ---------- CTA 条 ---------- */
.cta-bar{
  background:var(--card);border:1px solid var(--line);border-radius:24px;
  padding:32px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  box-shadow:var(--shadow-1);
}
.cta-bar h2{font-size:clamp(1.25rem,2.4vw,1.75rem);margin-bottom:8px;}
.cta-bar p{color:var(--muted);font-size:14.5px;max-width:58ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  padding:14px 26px;border-radius:999px;background:var(--signal);color:var(--ink);
  font-size:14.5px;font-weight:700;box-shadow:0 16px 34px -16px rgba(14,26,22,.6);
  opacity:0;visibility:hidden;transform:translateY(10px);transition:all 240ms ease;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--signal-hover);transform:translateY(-2px);}
@media (max-width:640px){
  .float-cta{
    right:0;left:0;bottom:0;border-radius:0;text-align:center;
    padding:16px 20px calc(16px + env(safe-area-inset-bottom));
    transform:none;
  }
  .float-cta.show{transform:none;}
  body{padding-bottom:56px;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--sand);padding:56px 0 26px;margin-top:20px;}
.footer-grid{
  display:grid;grid-template-columns:1.3fr .8fr 1fr;gap:40px;padding:40px 0 34px;
  border-bottom:1px solid var(--line-dark);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--signal);color:var(--ink);width:36px;height:28px;}
.footer-brand span:last-child{font-size:16px;font-weight:700;color:#fff;}
.site-footer p{font-size:13.8px;color:rgba(245,243,238,.66);max-width:42ch;line-height:1.8;}
.footer-title{
  font-size:13px;letter-spacing:.12em;color:rgba(245,243,238,.5);
  font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(245,243,238,.8);transition:color var(--ease);}
.footer-links a:hover{color:var(--signal);}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:13.8px;color:rgba(245,243,238,.72);}
.footer-contact b{color:var(--signal);}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding-top:22px;font-size:12.8px;color:rgba(245,243,238,.5);
}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:30px;}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr;}}

/* ---------- 动效 ---------- */
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}