/* roulang page: index */
:root{
  --c-primary:#12A594;
  --c-primary-deep:#0B6B62;
  --c-primary-soft:#E3F5F1;
  --c-accent:#FF7A2F;
  --c-accent-soft:#FFE9DC;
  --c-shell:#0E1A1D;
  --c-ink:#101B1F;
  --c-ink-2:#46585C;
  --c-ink-3:#7C8B8E;
  --c-line:#DCE5E4;
  --c-bg:#F5F8F7;
  --c-surface:#FFFFFF;
  --sh-1:0 2px 4px rgba(16,27,31,.04);
  --sh-2:0 14px 30px -14px rgba(16,27,31,.14);
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --sidebar:260px;
  --num-font:"Inter","SFMono-Regular",ui-monospace,Menlo,monospace;
}
@media (max-width:1399.98px){:root{--sidebar:232px}}
@media (max-width:1199.98px){:root{--sidebar:76px}}
@media (max-width:991.98px){:root{--sidebar:0px}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-bottom:88px;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;color:var(--c-ink-2);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;line-height:1.32}
h1{font-size:clamp(30px,4.2vw,46px);font-weight:700;line-height:1.25}
h2{font-size:clamp(22px,2.6vw,32px)}
h3{font-size:20px;font-weight:600;line-height:1.4}
p{margin:0}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-primary-deep)}
img{max-width:100%;display:block}
button{font-family:inherit}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
::selection{background:var(--c-primary-soft);color:var(--c-primary-deep)}

/* ============ 侧边导航壳 ============ */
.app-shell{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar);
  background:var(--c-shell);z-index:1045;
  display:flex;flex-direction:column;
  padding:22px 14px 18px;
  transition:width .2s ease,transform .24s ease;
  overflow-y:auto;overflow-x:hidden;
}
.brand{display:flex;align-items:center;gap:10px;padding:6px 8px 22px;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:linear-gradient(140deg,var(--c-primary) 0%,#0B6B62 100%);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:17px;font-weight:700;letter-spacing:-.5px;
}
.brand-text{color:#fff;font-size:16px;font-weight:700;letter-spacing:.2px;white-space:nowrap;line-height:1.2}
.brand-text small{display:block;font-size:11px;font-weight:500;color:rgba(255,255,255,.5);letter-spacing:1.6px;margin-top:2px}
.side-nav{display:flex;flex-direction:column;gap:4px;flex:1}
.side-nav a{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:11px 12px;border-radius:10px;
  color:rgba(255,255,255,.66);font-size:15px;font-weight:500;
  transition:background .16s ease,color .16s ease;white-space:nowrap;
}
.side-nav a i{width:20px;text-align:center;font-size:16px;flex:0 0 20px}
.side-nav a:hover{background:rgba(255,255,255,.06);color:#fff;text-decoration:none}
.side-nav a.active{background:rgba(255,255,255,.08);color:#fff}
.side-nav a.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:0 3px 3px 0;background:var(--c-accent);
}
.side-foot{padding-top:16px;border-top:1px solid rgba(255,255,255,.09);margin-top:14px}
.side-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  width:100%;height:42px;border-radius:var(--r-btn);
  background:var(--c-accent);color:#fff;font-size:14px;font-weight:600;
  transition:background .18s ease,transform .18s ease;white-space:nowrap;
}
.side-cta:hover{background:#EC6A1E;color:#fff;transform:translateY(-1px);text-decoration:none}
.side-note{font-size:11px;color:rgba(255,255,255,.38);text-align:center;margin-top:12px;letter-spacing:.4px;white-space:nowrap}
@media (max-width:1199.98px) and (min-width:992px){
  .app-shell{padding:20px 10px 16px;align-items:center}
  .brand{justify-content:center;padding:4px 0 18px}
  .brand-text{display:none}
  .side-nav{width:100%;align-items:center}
  .side-nav a{justify-content:center;padding:12px 0;width:48px;gap:0}
  .side-nav a span{display:none}
  .side-nav a i{flex:none;font-size:18px}
  .side-cta{width:48px;height:48px;padding:0}
  .side-cta span{display:none}
  .side-note{display:none}
  .side-foot{width:100%}
}

/* ============ 移动端顶栏 ============ */
.mobile-topbar{
  display:none;position:sticky;top:0;z-index:1046;
  height:60px;align-items:center;justify-content:space-between;
  padding:0 16px;background:var(--c-shell);
}
.mobile-topbar .brand-text{font-size:15px}
.hamburger{
  width:42px;height:42px;border:0;border-radius:10px;
  background:rgba(255,255,255,.08);color:#fff;font-size:17px;
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background .16s ease;
}
.hamburger:hover{background:rgba(255,255,255,.16)}
.backdrop{
  display:none;position:fixed;inset:0;background:rgba(14,26,29,.45);z-index:1044;
  opacity:0;transition:opacity .2s ease;
}
.backdrop.show{display:block;opacity:1}
@media (max-width:991.98px){
  .app-shell{width:266px;transform:translateX(-100%);box-shadow:var(--sh-2)}
  .app-shell.open{transform:translateX(0)}
  .mobile-topbar{display:flex}
  body.menu-open{overflow:hidden}
}

/* ============ 主区域 ============ */
.main-area{margin-left:var(--sidebar);min-height:100vh;transition:margin-left .2s ease}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}

.notice-bar{
  min-height:44px;display:flex;align-items:center;gap:10px;
  padding:8px 24px;background:var(--c-primary-soft);
  color:var(--c-primary-deep);font-size:14px;line-height:1.5;
}
.notice-bar i{color:var(--c-primary)}
.notice-bar a{margin-left:auto;font-weight:600;white-space:nowrap}
@media (max-width:767.98px){.notice-bar{display:none}}

/* ============ Hero ============ */
.hero{position:relative;background:var(--c-shell);color:#fff;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);
  background-size:22px 22px;opacity:.7;
}
.hero::after{
  content:"";position:absolute;right:-140px;bottom:-160px;width:440px;height:440px;
  background:rgba(18,165,148,.16);border-radius:56px;transform:rotate(38deg);pointer-events:none;
}
.hero-inner{
  position:relative;z-index:1;
  max-width:1200px;margin:0 auto;padding:76px 24px 84px;
  display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.6px;
  padding:6px 12px;border-radius:var(--r-badge);
  background:rgba(18,165,148,.18);color:#6FE3D4;border:1px solid rgba(18,165,148,.35);
  margin-bottom:20px;
}
.hero h1{color:#fff;margin-bottom:18px}
.hero h1 em{font-style:normal;color:#6FE3D4}
.hero-sub{font-size:17px;line-height:1.75;color:rgba(255,255,255,.74);max-width:540px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border:0;border-radius:var(--r-btn);
  background:var(--c-accent);color:#fff;font-size:15px;font-weight:600;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
  cursor:pointer;
}
.btn-main:hover{background:#EC6A1E;color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px -12px rgba(255,122,47,.65);text-decoration:none}
.btn-main.sm{min-height:42px;padding:0 20px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--r-btn);
  background:transparent;border:1px solid rgba(255,255,255,.3);color:#fff;
  font-size:15px;font-weight:600;transition:border-color .18s ease,background .18s ease;
}
.btn-ghost:hover{border-color:var(--c-primary);background:rgba(18,165,148,.14);color:#fff;text-decoration:none}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--r-btn);
  background:var(--c-surface);border:1px solid var(--c-line);color:var(--c-ink);
  font-size:15px;font-weight:600;transition:border-color .18s ease,color .18s ease;
}
.btn-line:hover{border-color:var(--c-primary);color:var(--c-primary);text-decoration:none}
.hero-badges{display:flex;flex-wrap:wrap;gap:22px}
.hero-badges span{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.66)}
.hero-badges i{color:var(--c-primary);font-size:13px}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-card);border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.04);
}
.float-card{
  position:absolute;left:-16px;bottom:-24px;
  background:var(--c-surface);border-radius:14px;padding:14px 20px;
  box-shadow:var(--sh-2);display:flex;align-items:center;gap:14px;
}
.float-card .num{font-family:var(--num-font);font-size:28px;font-weight:700;color:var(--c-accent);line-height:1}
.float-card .txt{font-size:13px;color:var(--c-ink-2);line-height:1.5}
@media (max-width:991.98px){
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:52px 20px 60px}
  .hero-media{order:2}
  .float-card{left:auto;right:8px;bottom:-20px;padding:12px 16px}
  .float-card .num{font-size:22px}
}

/* ============ 通用板块 ============ */
.section{padding:92px 0}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:34px;flex-wrap:wrap;
}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:1.4px;
  color:var(--c-primary);margin-bottom:10px;text-transform:uppercase;
}
.section-head p.lead-line{margin-top:10px;font-size:15px;color:var(--c-ink-3);max-width:620px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;white-space:nowrap}
.text-link i{font-size:12px;transition:transform .18s ease}
.text-link:hover{text-decoration:none}
.text-link:hover i{transform:translateX(3px)}
@media (max-width:767.98px){.section{padding:60px 0}}

/* ============ 卖点三连 ============ */
.sell-grid{display:grid;grid-template-columns:5fr 7fr;grid-template-rows:auto auto;gap:20px}
.sell-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);transition:box-shadow .18s ease,border-color .18s ease;
  display:flex;flex-direction:column;
}
.sell-card:hover{box-shadow:var(--sh-2);border-color:var(--c-primary-soft)}
.sell-card .idx{
  font-family:var(--num-font);font-size:14px;font-weight:700;letter-spacing:1px;
  color:var(--c-primary);margin-bottom:14px;display:block;
}
.sell-card .idx.accent{color:var(--c-accent)}
.sell-card h3{margin-bottom:12px}
.sell-card p{font-size:15px;line-height:1.85;color:var(--c-ink-2)}
.sell-card.main-card{
  grid-row:1/3;background:var(--c-primary-soft);border-color:transparent;
  justify-content:center;padding:34px;
}
.sell-card.main-card h3{font-size:24px}
.sell-card .text-link{margin-top:18px}
@media (max-width:991.98px){
  .sell-grid{grid-template-columns:1fr;grid-template-rows:auto}
  .sell-card.main-card{grid-row:auto}
}

/* ============ 场景演示 ============ */
.scene{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.scene-grid{display:grid;grid-template-columns:360px 1fr;gap:36px;align-items:start}
.scene-tabs{display:flex;flex-direction:column;gap:10px}
.scene-tab{
  position:relative;text-align:left;border:0;background:transparent;
  border-radius:12px;padding:16px 18px;cursor:pointer;
  transition:background .16s ease;font-family:inherit;
}
.scene-tab::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:0 3px 3px 0;background:transparent;transition:background .16s ease;
}
.scene-tab strong{display:block;font-size:16px;font-weight:600;color:var(--c-ink);margin-bottom:4px}
.scene-tab span{font-size:13.5px;color:var(--c-ink-3);line-height:1.6}
.scene-tab:hover{background:var(--c-bg)}
.scene-tab.is-active{background:var(--c-primary-soft)}
.scene-tab.is-active::before{background:var(--c-primary)}
.scene-tab.is-active strong{color:var(--c-primary-deep)}
.browser{
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  background:var(--c-surface);box-shadow:var(--sh-1);
}
.browser-bar{
  display:flex;align-items:center;gap:8px;padding:12px 16px;
  background:var(--c-bg);border-bottom:1px solid var(--c-line);
}
.browser-bar .dot{width:10px;height:10px;border-radius:50%;background:var(--c-line)}
.browser-bar .dot:nth-child(1){background:#FF7A2F}
.browser-bar .dot:nth-child(2){background:#F2C744}
.browser-bar .dot:nth-child(3){background:#3FC79A}
.browser-url{
  margin-left:12px;flex:1;height:26px;border-radius:6px;
  background:var(--c-surface);border:1px solid var(--c-line);
  display:flex;align-items:center;padding:0 12px;
  font-size:12.5px;color:var(--c-ink-3);font-family:var(--num-font);
}
.browser img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--c-bg)}
@media (max-width:991.98px){.scene-grid{grid-template-columns:1fr;gap:24px}}

/* ============ 社会认同 ============ */
.stat-bar{
  display:grid;grid-template-columns:repeat(3,1fr);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  background:var(--c-surface);overflow:hidden;margin-bottom:28px;
}
.stat-item{padding:26px 28px;border-right:1px solid var(--c-line)}
.stat-item:last-child{border-right:0}
.stat-item .val{font-family:var(--num-font);font-size:32px;font-weight:700;color:var(--c-accent);line-height:1.1}
.stat-item .val em{font-style:normal;font-size:16px;margin-left:2px}
.stat-item .cap{font-size:14px;color:var(--c-ink-2);margin-top:8px}
@media (max-width:767.98px){
  .stat-bar{grid-template-columns:1fr}
  .stat-item{border-right:0;border-bottom:1px solid var(--c-line);padding:20px 22px}
  .stat-item:last-child{border-bottom:0}
}
.quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:28px}
.quote-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);
}
.quote-card .mark{font-size:26px;color:var(--c-primary);line-height:1;margin-bottom:12px;font-family:Georgia,serif}
.quote-card p{font-size:15px;line-height:1.85;color:var(--c-ink-2);margin-bottom:16px}
.quote-card .who{font-size:13.5px;color:var(--c-ink-3);border-top:1px solid var(--c-line);padding-top:14px}
@media (max-width:767.98px){.quote-grid{grid-template-columns:1fr}}
.tagline-row{display:flex;flex-wrap:wrap;gap:12px}
.tagline-row span{
  font-size:13px;color:var(--c-ink-3);border:1px solid var(--c-line);
  background:var(--c-surface);border-radius:999px;padding:7px 16px;
  transition:color .18s ease,border-color .18s ease;
}
.tagline-row span:hover{color:var(--c-primary);border-color:var(--c-primary)}

/* ============ 最新信息 ============ */
.latest{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.chip{
  font-size:13.5px;font-weight:500;padding:8px 16px;border-radius:999px;
  background:var(--c-bg);border:1px solid var(--c-line);color:var(--c-ink-2);
  transition:all .18s ease;
}
.chip:hover,.chip.is-on{background:var(--c-primary-soft);border-color:var(--c-primary-soft);color:var(--c-primary-deep);text-decoration:none}
.latest-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:28px;align-items:start}
.lead-card{
  display:grid;grid-template-columns:minmax(0,240px) 1fr;gap:0;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:box-shadow .18s ease,border-color .18s ease;
}
.lead-card:hover{box-shadow:var(--sh-2);border-color:var(--c-primary-soft)}
.lead-cover{display:block;overflow:hidden;background:var(--c-bg);border-right:1px solid var(--c-line)}
.lead-cover img{width:100%;height:100%;min-height:220px;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease}
.lead-card:hover .lead-cover img{transform:scale(1.03)}
.lead-body{padding:26px;display:flex;flex-direction:column}
.lead-body h3{font-size:21px;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.lead-body h3 a{color:var(--c-ink)}
.lead-body h3 a:hover{color:var(--c-primary);text-decoration:none}
.lead-body .sum{
  font-size:15px;line-height:1.85;color:var(--c-ink-2);margin-bottom:auto;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:20px;padding-top:16px;border-top:1px solid var(--c-line);
}
.badge-cat{
  font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--r-badge);
  background:var(--c-primary-soft);color:var(--c-primary-deep);
}
.meta-time{font-size:13.5px;color:var(--c-ink-3);font-family:var(--num-font)}
.compact-list{display:flex;flex-direction:column;border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-surface);overflow:hidden;box-shadow:var(--sh-1)}
.compact-list li{border-bottom:1px solid var(--c-line)}
.compact-list li:last-child{border-bottom:0}
.compact-list a{
  display:block;padding:18px 20px;transition:background .16s ease;
}
.compact-list a:hover{background:var(--c-bg);text-decoration:none}
.compact-list .t{
  font-size:15.5px;font-weight:600;color:var(--c-ink);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:8px;
}
.compact-list a:hover .t{color:var(--c-primary)}
.compact-list .m{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--c-ink-3)}
.empty-state{
  border:1px dashed var(--c-line);border-radius:var(--r-card);background:var(--c-surface);
  padding:54px 24px;text-align:center;
}
.empty-state i{font-size:30px;color:var(--c-primary);margin-bottom:14px;display:block}
.empty-state p{font-size:15px;color:var(--c-ink-2);margin-bottom:12px}
@media (max-width:991.98px){
  .latest-grid{grid-template-columns:1fr}
  .lead-card{grid-template-columns:1fr}
  .lead-cover{border-right:0;border-bottom:1px solid var(--c-line)}
  .lead-cover img{min-height:0;aspect-ratio:16/9}
}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.accordion-item{
  border:1px solid var(--c-line)!important;border-radius:var(--r-card)!important;
  background:var(--c-surface);overflow:hidden;box-shadow:var(--sh-1);
}
.faq-grid .accordion-item+ .accordion-item{margin-top:16px}
.accordion-button{
  min-height:44px;padding:18px 22px;font-size:16px;font-weight:600;color:var(--c-ink);
  background:var(--c-surface)!important;box-shadow:none!important;
  border-radius:var(--r-card)!important;position:relative;
}
.accordion-button:not(.collapsed){color:var(--c-primary-deep);background:var(--c-primary-soft)!important}
.accordion-button::after{
  background-image:none;content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:12px;color:var(--c-primary);width:auto;height:auto;transition:transform .2s ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.accordion-button:focus{border-color:transparent}
.accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;
  border-radius:0 3px 3px 0;background:transparent;transition:background .18s ease;
}
.accordion-button:not(.collapsed)::before{background:var(--c-primary)}
.accordion-body{padding:2px 22px 22px;font-size:15.5px;line-height:1.85;color:var(--c-ink-2)}
@media (max-width:991.98px){.faq-grid{grid-template-columns:1fr}}

/* ============ 页脚前 CTA ============ */
.cta-band{
  background:var(--c-primary-soft);border-top:1px solid var(--c-line);
  padding:52px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(20px,2.2vw,26px);margin-bottom:8px}
.cta-inner p{font-size:15px;color:var(--c-ink-2)}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-shell);color:rgba(255,255,255,.72);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-grid h4{color:#fff;font-size:14px;font-weight:600;letter-spacing:.6px;margin-bottom:18px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{font-size:16px}
.footer-about p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-links a:hover{color:#fff;text-decoration:none}
.footer-note{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.5);
}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr;gap:28px}}

/* ============ 底部固定转化条 ============ */
.sticky-cta{
  position:fixed;left:var(--sidebar);right:0;bottom:0;height:64px;z-index:1035;
  background:var(--c-surface);border-top:1px solid var(--c-line);
  display:flex;align-items:center;gap:18px;padding:0 24px;
  box-shadow:0 -8px 24px -14px rgba(16,27,31,.28);
  transform:translateY(110%);transition:transform .28s ease;
}
.sticky-cta.show{transform:translateY(0)}
.sticky-cta p{font-size:14.5px;color:var(--c-ink-2);flex:1;min-width:0}
.sticky-cta p strong{color:var(--c-ink)}
.sticky-close{
  width:34px;height:34px;border-radius:9px;border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--c-ink-3);cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:all .16s ease;
}
.sticky-close:hover{color:var(--c-ink);border-color:var(--c-ink-3)}
@media (max-width:991.98px){
  .sticky-cta{left:0;height:60px;padding:0 14px;gap:10px}
  .sticky-cta p{font-size:13px;line-height:1.35}
  .sticky-cta p span{display:none}
  .btn-main.sm{padding:0 16px;min-height:40px;font-size:13.5px}
}
@media (max-width:575.98px){
  .sticky-cta{padding-bottom:env(safe-area-inset-bottom)}
}

/* roulang page: article */
:root{
  --c-primary:#12A594;
  --c-primary-deep:#0B6B62;
  --c-primary-soft:#E3F5F1;
  --c-accent:#FF7A2F;
  --c-accent-soft:#FFE9DC;
  --c-shell:#0E1A1D;
  --c-ink:#101B1F;
  --c-ink-2:#46585C;
  --c-ink-3:#7C8B8E;
  --c-line:#DCE5E4;
  --c-bg:#F5F8F7;
  --c-surface:#FFFFFF;
  --sh-1:0 2px 4px rgba(16,27,31,.04);
  --sh-2:0 14px 30px -14px rgba(16,27,31,.14);
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --sidebar-w:260px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-bg);
}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary-deep);}
img{max-width:100%;display:block;}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--c-ink);margin:0;font-weight:700;}
p{margin:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}

/* ---------- App shell ---------- */
.app-shell{display:flex;min-height:100vh;}
.sidebar{
  width:var(--sidebar-w);
  flex:0 0 var(--sidebar-w);
  background:var(--c-shell);
  position:fixed;
  top:0;left:0;bottom:0;
  padding:26px 16px 20px;
  display:flex;
  flex-direction:column;
  gap:22px;
  z-index:1035;
  transition:transform .24s ease;
  overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:10px;padding:0 8px 18px;border-bottom:1px solid rgba(255,255,255,.08);}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  border-radius:11px;
  background:linear-gradient(140deg,var(--c-primary) 0%,#0B6B62 100%);
  color:#fff;font-weight:700;font-size:18px;
  display:flex;align-items:center;justify-content:center;
}
.brand-text{color:#fff;font-size:16px;font-weight:700;letter-spacing:.5px;line-height:1.3;}
.brand-sub{display:block;font-size:11px;color:rgba(255,255,255,.45);font-weight:400;letter-spacing:1px;}
.side-nav{display:flex;flex-direction:column;gap:4px;}
.side-nav a{
  position:relative;
  display:flex;align-items:center;gap:12px;
  padding:11px 12px;
  border-radius:10px;
  color:rgba(255,255,255,.72);
  font-size:14.5px;
  font-weight:500;
  transition:background .16s ease,color .16s ease;
}
.side-nav a i{width:20px;font-size:16px;text-align:center;}
.side-nav a:hover{background:rgba(255,255,255,.06);color:#fff;text-decoration:none;}
.side-nav a.active{background:rgba(255,255,255,.06);color:#fff;}
.side-nav a.active::before{
  content:"";position:absolute;left:-16px;top:9px;bottom:9px;width:3px;
  background:var(--c-accent);border-radius:0 3px 3px 0;
}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding:0 8px;}
.side-foot .btn-primary{width:100%;justify-content:center;font-size:14px;padding:10px 14px;}
.side-foot span{font-size:12px;color:rgba(255,255,255,.42);letter-spacing:.6px;}
.overlay{
  position:fixed;inset:0;background:rgba(14,26,29,.45);
  opacity:0;visibility:hidden;transition:opacity .22s ease;z-index:1032;
}
.main-area{margin-left:var(--sidebar-w);flex:1 1 auto;min-width:0;display:flex;flex-direction:column;min-height:100vh;}

/* ---------- Topbar ---------- */
.topbar{
  min-height:44px;
  background:var(--c-primary-soft);
  border-bottom:1px solid var(--c-line);
  display:flex;align-items:center;gap:12px;
  padding:0 24px;
  font-size:13.5px;
  color:var(--c-primary-deep);
}
.topbar .tip-icon{color:var(--c-primary);}
.topbar a{font-weight:600;}
.nav-toggle{
  display:none;
  width:40px;height:40px;border:1px solid var(--c-line);border-radius:10px;
  background:#fff;color:var(--c-ink);font-size:16px;align-items:center;justify-content:center;
}
.topbar-brand{display:none;align-items:center;gap:8px;font-weight:700;color:var(--c-ink);font-size:15px;}
.topbar-brand .brand-mark{width:28px;height:28px;flex:0 0 28px;font-size:14px;border-radius:8px;}

/* ---------- Layout helpers ---------- */
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.page-main{flex:1 1 auto;padding:32px 0 72px;}
.sec-title{font-size:clamp(20px,2.2vw,24px);line-height:1.4;margin-bottom:18px;display:flex;align-items:center;gap:10px;}
.sec-title::before{content:"";width:4px;height:20px;border-radius:2px;background:var(--c-primary);}

/* ---------- Buttons ---------- */
.btn-primary,.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  min-height:44px;padding:0 20px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:#F0681C;color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-ink);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);text-decoration:none;transform:translateY(-1px);}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14.5px;}
.text-link i{transition:transform .18s ease;}
.text-link:hover i{transform:translateX(3px);}

/* ---------- Breadcrumb ---------- */
.crumb{font-size:14px;color:var(--c-ink-3);display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:20px;}
.crumb a{color:var(--c-ink-3);}
.crumb a:hover{color:var(--c-primary);text-decoration:none;}
.crumb .sep{color:#C3D0CE;}
.crumb .current{color:var(--c-primary);font-weight:600;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- Article head ---------- */
.article-head{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:30px 32px 26px;
  margin-bottom:28px;
}
.article-head h1{font-size:clamp(26px,3.4vw,40px);line-height:1.3;margin:14px 0 16px;}
.badge-chip{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--c-primary-soft);color:var(--c-primary-deep);
  font-size:12px;font-weight:600;letter-spacing:.4px;
  padding:5px 11px;border-radius:var(--r-badge);
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;font-size:14px;color:var(--c-ink-3);}
.meta-row i{color:var(--c-primary);margin-right:6px;}
.meta-back{margin-left:auto;}
.meta-back a{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;}

/* ---------- Article layout ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;}
.article-body{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:34px 36px 40px;
  font-size:17px;
  line-height:1.9;
  color:var(--c-ink-2);
}
.article-body > * + *{margin-top:1.15em;}
.article-body h2{
  font-size:clamp(20px,2.2vw,26px);line-height:1.45;color:var(--c-ink);
  margin:40px 0 12px;padding-left:14px;position:relative;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--c-primary);}
.article-body h3{font-size:20px;line-height:1.5;color:var(--c-ink);margin:28px 0 10px;}
.article-body h4{font-size:17px;color:var(--c-ink);margin:22px 0 8px;}
.article-body p{margin:0 0 1.15em;}
.article-body ul,.article-body ol{padding-left:1.5em;margin:0 0 1.15em;}
.article-body li{margin:.42em 0;}
.article-body strong{color:var(--c-ink);}
.article-body img{border-radius:var(--r-img);border:1px solid var(--c-line);margin:24px auto;}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;
  background:var(--c-primary-soft);
  border-left:4px solid var(--c-primary);
  border-radius:0 12px 12px 0;
  color:var(--c-ink);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;
  border:1px solid var(--c-line);border-radius:12px;overflow:hidden;font-size:15px;
}
.article-body th{background:#EEF5F3;color:var(--c-ink);font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--c-line);}
.article-body tr:last-child td{border-bottom:none;}
.article-body tbody tr:nth-child(even){background:#FAFCFB;}
.article-body a{color:var(--c-primary);font-weight:500;}
.article-body a:hover{text-decoration:underline;}
.empty-article{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:60px 32px;text-align:center;
}
.empty-article i{font-size:34px;color:var(--c-primary);}
.empty-article h2{font-size:22px;margin:16px 0 10px;}
.empty-article p{max-width:520px;margin:0 auto 24px;}

/* ---------- Article foot ---------- */
.article-foot{margin-top:28px;display:flex;flex-direction:column;gap:26px;}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.tag-row .label{font-size:13px;color:var(--c-ink-3);}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 13px;border-radius:var(--r-badge);
  background:var(--c-primary-soft);color:var(--c-primary-deep);
  font-size:13px;font-weight:600;
  transition:background .18s ease,color .18s ease;
}
.tag:hover{background:var(--c-primary);color:#fff;text-decoration:none;}
.jump-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.jump-card{
  display:flex;flex-direction:column;gap:8px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-1);
  transition:box-shadow .2s ease,border-color .2s ease,transform .2s ease;
}
.jump-card:hover{box-shadow:var(--sh-2);border-color:var(--c-primary-soft);transform:translateY(-2px);text-decoration:none;}
.jump-card .dir{font-size:12px;font-weight:600;color:var(--c-ink-3);letter-spacing:1px;}
.jump-card h3{font-size:17px;line-height:1.5;}
.jump-card p{font-size:14px;color:var(--c-ink-2);}
.jump-card.next{text-align:right;align-items:flex-end;}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:box-shadow .2s ease,border-color .2s ease;
}
.rel-card:hover{box-shadow:var(--sh-2);border-color:var(--c-primary-soft);text-decoration:none;}
.rel-thumb{aspect-ratio:16/9;background:#EDF3F1;overflow:hidden;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.03);}
.rel-card .rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto;}
.rel-card h3{font-size:16.5px;line-height:1.5;}
.rel-card p{font-size:14px;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-more{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.rel-more i{transition:transform .18s ease;}
.rel-card:hover .rel-more i{transform:translateX(3px);}
.back-actions{display:flex;justify-content:center;}

/* ---------- Side panel ---------- */
.side-panel{display:none;flex-direction:column;gap:20px;}
.panel-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);
}
.panel-card h3{font-size:15px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--c-line);}
.panel-links{display:flex;flex-direction:column;gap:2px;}
.panel-links a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:10px;
  font-size:14.5px;color:var(--c-ink-2);font-weight:500;
  transition:background .16s ease,color .16s ease;
}
.panel-links a i{color:var(--c-primary);font-size:14px;width:16px;text-align:center;}
.panel-links a:hover{background:var(--c-bg);color:var(--c-primary);text-decoration:none;}
.panel-note{font-size:13.5px;line-height:1.85;color:var(--c-ink-3);margin-top:12px;}
.sticky-box{position:sticky;top:28px;display:flex;flex-direction:column;gap:20px;}

/* ---------- CTA band ---------- */
.cta-band{
  margin-top:40px;
  background:var(--c-primary-soft);
  border-radius:var(--r-card);
  padding:30px 32px;
  display:flex;align-items:center;gap:24px;flex-wrap:wrap;
  border:1px solid #CFE9E3;
}
.cta-band h3{font-size:clamp(18px,2vw,22px);margin-bottom:8px;}
.cta-band p{font-size:15px;max-width:620px;}
.cta-band .cta-actions{margin-left:auto;display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-shell);color:rgba(255,255,255,.72);padding:56px 0 26px;margin-top:auto;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:16px;border-radius:10px;}
.footer-brand .brand-text{font-size:16px;font-weight:700;letter-spacing:.4px;}
.site-footer h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:14px;}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.7);}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#fff;text-decoration:none;}
.footer-note{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.6);}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- Responsive ---------- */
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;}
  .side-panel{display:flex;}
}
@media (min-width:1400px){
  :root{--sidebar-w:260px;}
}
@media (max-width:1399px) and (min-width:1200px){
  :root{--sidebar-w:232px;}
}
@media (max-width:1199px) and (min-width:992px){
  :root{--sidebar-w:76px;}
  .sidebar{padding:22px 10px;align-items:center;}
  .brand{padding:0 0 16px;justify-content:center;width:100%;}
  .brand-text{display:none;}
  .side-nav{width:100%;align-items:center;}
  .side-nav a{justify-content:center;padding:12px 0;}
  .side-nav a span{display:none;}
  .side-nav a.active::before{left:-10px;}
  .side-foot{padding:0;align-items:center;width:100%;}
  .side-foot .btn-primary{padding:10px 0;font-size:0;gap:0;}
  .side-foot .btn-primary i{font-size:15px;}
  .side-foot span{display:none;}
}
@media (max-width:991px){
  .sidebar{transform:translateX(-100%);width:268px;flex:0 0 268px;}
  body.nav-open .sidebar{transform:translateX(0);box-shadow:0 0 40px rgba(0,0,0,.3);}
  body.nav-open .overlay{opacity:1;visibility:visible;}
  .main-area{margin-left:0;}
  .topbar{padding:0 16px;min-height:60px;justify-content:space-between;}
  .topbar .tip-text{display:none;}
  .nav-toggle{display:inline-flex;}
  .topbar-brand{display:flex;}
  .page-main{padding:24px 0 56px;}
  .wrap{padding:0 16px;}
  .article-head{padding:22px 20px;}
  .article-body{padding:24px 20px 28px;font-size:16px;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;}
}
@media (max-width:640px){
  .jump-grid{grid-template-columns:minmax(0,1fr);}
  .jump-card.next{text-align:left;align-items:flex-start;}
  .rel-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:24px 20px;}
  .cta-band .cta-actions{margin-left:0;width:100%;}
  .cta-band .cta-actions .btn-primary,.cta-band .cta-actions .btn-ghost{flex:1 1 auto;justify-content:center;}
  .meta-back{margin-left:0;width:100%;}
  .footer-bottom{flex-direction:column;gap:6px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#12A594;
  --c-primary-deep:#0B6B62;
  --c-primary-soft:#E3F5F1;
  --c-accent:#FF7A2F;
  --c-accent-soft:#FFE9DC;
  --c-shell:#0E1A1D;
  --c-ink:#101B1F;
  --c-ink-2:#46585C;
  --c-ink-3:#7C8B8E;
  --c-line:#DCE5E4;
  --c-bg:#F5F8F7;
  --c-surface:#FFFFFF;
  --sh-1:0 2px 4px rgba(16,27,31,.04);
  --sh-2:0 14px 30px -14px rgba(16,27,31,.14);
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --sidebar-w:260px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink-2);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--c-primary-deep);}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);line-height:1.3;font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
::selection{background:var(--c-primary-soft);color:var(--c-primary-deep);}

/* ============ 顶部移动栏 ============ */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:60px;z-index:1060;
  background:var(--c-shell);
  align-items:center;justify-content:space-between;
  padding:0 16px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.topbar .brand{display:flex;align-items:center;gap:10px;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-deep));
  color:#fff;font-weight:700;font-size:17px;
  display:grid;place-items:center;
}
.topbar .brand-text{color:#fff;font-weight:700;font-size:15px;letter-spacing:.3px;}
.menu-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);color:#fff;display:grid;place-items:center;font-size:16px;
}

/* ============ 左侧导航 ============ */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);z-index:1050;
  background:var(--c-shell);
  display:flex;flex-direction:column;
  padding:24px 18px 22px;
  transition:transform .26s ease,width .2s ease;
}
.sidebar .brand{display:flex;align-items:center;gap:10px;padding:2px 4px 0;}
.sidebar .brand-text{color:#fff;font-weight:700;font-size:16px;letter-spacing:.4px;line-height:1.2;}
.sidebar .brand-sub{display:block;font-size:11px;color:rgba(255,255,255,.5);letter-spacing:.6px;margin-top:2px;font-weight:400;}
.side-nav{display:flex;flex-direction:column;gap:4px;margin-top:30px;}
.side-nav a{
  position:relative;
  display:flex;align-items:center;gap:12px;
  padding:11px 12px;border-radius:10px;
  color:rgba(255,255,255,.7);
  font-size:15px;line-height:1.4;
  transition:background-color .16s ease,color .16s ease;
}
.side-nav a i{width:20px;text-align:center;font-size:15px;flex:0 0 20px;}
.side-nav a:hover{background:rgba(255,255,255,.06);color:#fff;}
.side-nav a.active{background:rgba(255,255,255,.06);color:#fff;}
.side-nav a.active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:18px;border-radius:2px;background:var(--c-accent);
}
.side-foot{margin-top:auto;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);}
.side-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:42px;border-radius:10px;
  background:var(--c-accent);color:#fff;font-size:14px;font-weight:600;
}
.side-cta:hover{background:#e96a20;color:#fff;transform:translateY(-1px);}
.side-note{margin-top:12px;font-size:12px;color:rgba(255,255,255,.42);line-height:1.7;}
.scrim{
  position:fixed;inset:0;background:rgba(14,26,29,.45);
  opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;z-index:1045;
}
.scrim.show{opacity:1;visibility:visible;}

/* ============ 主内容区 ============ */
.main{margin-left:var(--sidebar-w);min-height:100vh;padding-bottom:0;}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;}
.notice-bar{
  min-height:44px;background:var(--c-primary-soft);
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding:8px 24px;font-size:14px;color:var(--c-primary-deep);
}
.notice-bar i{color:var(--c-primary);}
.notice-bar a{font-weight:600;color:var(--c-primary-deep);border-bottom:1px solid rgba(11,107,98,.3);}
.notice-bar a:hover{border-bottom-color:var(--c-primary-deep);}

.crumbs{font-size:14px;color:var(--c-ink-3);padding:26px 0 0;}
.crumbs a{color:var(--c-ink-3);}
.crumbs a:hover{color:var(--c-primary);}
.crumbs .sep{margin:0 8px;color:var(--c-line);}
.crumbs .cur{color:var(--c-primary);font-weight:600;}

.page-head{padding:18px 0 0;}
.page-head h1{
  font-size:clamp(30px,4.2vw,46px);
  font-weight:700;line-height:1.25;letter-spacing:-.4px;
}
.page-head .lede{
  margin-top:14px;font-size:17px;line-height:1.8;color:var(--c-ink-2);max-width:820px;
}
.head-rule{margin-top:26px;height:1px;background:var(--c-line);}

/* chips */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;padding:22px 0 0;}
.chip{
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink-2);
  font-size:14px;line-height:1;padding:10px 16px;border-radius:var(--r-badge);
  transition:all .18s ease;
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);}
.chip.is-on{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}

/* 统计条 */
.stat-strip{
  margin-top:26px;
  display:grid;grid-template-columns:repeat(3,1fr);
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
}
.stat-strip .stat{padding:20px 24px;border-left:1px solid var(--c-line);}
.stat-strip .stat:first-child{border-left:0;}
.stat .num{
  font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--c-accent);line-height:1.2;
}
.stat .num small{font-size:14px;font-weight:600;margin-left:4px;color:var(--c-ink-3);}
.stat .lbl{font-size:14px;color:var(--c-ink-2);margin-top:4px;}

/* 板块通用 */
.section{padding:64px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;letter-spacing:-.2px;}
.section-head .sub{margin-top:8px;font-size:15px;color:var(--c-ink-2);}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary);}
.text-link i{font-size:12px;transition:transform .18s ease;}
.text-link:hover i{transform:translateX(3px);}

/* 入口卡片网格 */
.entry-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:28px;
}
.entry-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.entry-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:#BFE6E0;}
.thumb{aspect-ratio:16/9;overflow:hidden;background:#EAF1F0;border-bottom:1px solid var(--c-line);}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.entry-card:hover .thumb img{transform:scale(1.03);}
.entry-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.entry-body h3{
  font-size:18px;font-weight:600;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-desc{
  font-size:15px;line-height:1.75;color:var(--c-ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.badge-tag{
  display:inline-block;font-size:12px;font-weight:600;line-height:1;
  padding:5px 9px;border-radius:var(--r-badge);
  background:var(--c-primary-soft);color:var(--c-primary-deep);
}
.badge-tag.alt{background:var(--c-accent-soft);color:#A8480E;}
.entry-time{font-size:13px;color:var(--c-ink-3);font-family:var(--font-num);}
.card-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;}
.card-link i{font-size:11px;transition:transform .18s ease;}
.card-link:hover i{transform:translateX(3px);}

/* 清单条目 */
.entry-rows{
  margin-top:24px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
}
.entry-row{
  display:flex;align-items:center;gap:20px;
  padding:18px 22px;border-top:1px solid var(--c-line);
  transition:background-color .16s ease;
}
.entry-row:first-child{border-top:0;}
.entry-row:hover{background:var(--c-primary-soft);}
.entry-row .idx{
  font-family:var(--font-num);font-size:14px;font-weight:700;color:var(--c-accent);
  flex:0 0 44px;letter-spacing:.5px;
}
.entry-row .row-main{flex:1 1 auto;min-width:0;}
.entry-row .row-main strong{display:block;font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.5;}
.entry-row .row-main span{display:block;font-size:14px;color:var(--c-ink-2);margin-top:2px;}
.entry-row .row-side{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.entry-row .arrow{color:var(--c-primary);font-size:13px;}

/* 三步说明 */
.step-list{display:flex;flex-direction:column;gap:14px;margin-top:28px;}
.step-item{
  display:flex;gap:20px;align-items:flex-start;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:22px 24px;
}
.step-item .step-no{
  font-family:var(--font-num);font-size:15px;font-weight:700;color:#fff;
  background:var(--c-primary);border-radius:8px;
  width:44px;height:32px;display:grid;place-items:center;flex:0 0 auto;
}
.step-item h3{font-size:17px;font-weight:600;margin-bottom:6px;}
.step-item p{font-size:15px;line-height:1.8;color:var(--c-ink-2);}

/* FAQ */
.faq-list{margin-top:26px;display:grid;grid-template-columns:1fr;gap:12px;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:14px;box-shadow:var(--sh-1);overflow:hidden;
  border-left:4px solid transparent;transition:border-color .2s ease;
}
.faq-item.open{border-left-color:var(--c-primary);}
.faq-q{
  width:100%;background:none;border:0;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:17px 20px;color:var(--c-ink);font-size:16px;font-weight:600;line-height:1.6;
}
.faq-q i{color:var(--c-primary);font-size:13px;transition:transform .22s ease;flex:0 0 auto;}
.faq-item.open .faq-q i{transform:rotate(180deg);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .28s ease;
  font-size:15.5px;line-height:1.85;color:var(--c-ink-2);
}
.faq-a .inner{padding:0 20px 20px;}

/* CTA */
.cta-block{
  margin-top:64px;
  background:var(--c-primary-soft);border-radius:20px;
  padding:34px 36px;display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
}
.cta-block h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;}
.cta-block p{margin-top:8px;font-size:15px;color:var(--c-ink-2);max-width:640px;}
.btn-main{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c-accent);color:#fff;border:0;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-main:hover{background:#e96a20;color:#fff;transform:translateY(-1px);box-shadow:0 12px 22px -12px rgba(255,122,47,.8);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c-surface);color:var(--c-ink);
  border:1px solid var(--c-line);
  height:46px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  transition:all .18s ease;
}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* 底部转化条 */
.convert-bar{
  position:fixed;left:var(--sidebar-w);right:0;bottom:0;height:64px;z-index:1030;
  background:var(--c-surface);border-top:1px solid var(--c-line);
  box-shadow:0 -8px 22px -16px rgba(16,27,31,.35);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 24px;
  transform:translateY(110%);transition:transform .3s ease;
}
.convert-bar.show{transform:translateY(0);}
.convert-bar .cb-text{font-size:15px;color:var(--c-ink-2);}
.convert-bar .cb-text strong{color:var(--c-ink);}
.convert-bar .cb-right{display:flex;align-items:center;gap:12px;}
.cb-close{
  width:32px;height:32px;border-radius:8px;border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--c-ink-3);display:grid;place-items:center;font-size:12px;
}
.cb-close:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* 页脚 */
.site-footer{
  margin-top:80px;background:var(--c-shell);color:rgba(255,255,255,.72);
  padding:56px 0 0;
}
.site-footer .wrap{max-width:1200px;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px;
  padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-deep));
  color:#fff;font-weight:700;display:grid;place-items:center;
}
.footer-brand .brand-text{font-weight:700;font-size:16px;}
.footer-about p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);}
.site-footer h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:14px;}
.footer-links{display:flex;flex-direction:column;gap:9px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-links a:hover{color:#fff;}
.footer-note{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding:20px 0 96px;font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1399px) and (min-width:1200px){
  :root{--sidebar-w:232px;}
}
@media (max-width:1199px) and (min-width:992px){
  :root{--sidebar-w:76px;}
  .sidebar{padding:20px 12px;align-items:center;}
  .sidebar .brand{justify-content:center;}
  .sidebar .brand-text,.sidebar .brand-sub,.side-cta span,.side-note{display:none;}
  .side-nav{width:100%;}
  .side-nav a{justify-content:center;padding:12px 0;}
  .side-nav a span{display:none;}
  .side-nav a i{width:auto;font-size:17px;}
  .side-cta{width:44px;height:44px;padding:0;font-size:15px;}
  .entry-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991px){
  .topbar{display:flex;}
  .sidebar{
    width:266px;transform:translateX(-100%);
    box-shadow:0 0 40px rgba(0,0,0,.35);
  }
  .sidebar.open{transform:translateX(0);}
  .main{margin-left:0;padding-top:60px;}
  .entry-grid{grid-template-columns:repeat(2,1fr);}
  .entry-row .row-side .badge-tag{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-bottom{padding-bottom:88px;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .wrap{padding:0 16px;}
  .notice-bar{display:none;}
  .crumbs{padding-top:18px;}
  .page-head{padding-top:12px;}
  .section{padding:48px 0 0;}
  .entry-grid{grid-template-columns:1fr;gap:16px;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-strip .stat{border-left:0;border-top:1px solid var(--c-line);padding:16px 18px;}
  .stat-strip .stat:first-child{border-top:0;}
  .entry-row{flex-wrap:wrap;gap:12px;padding:16px 16px;}
  .entry-row .idx{flex:0 0 40px;}
  .entry-row .row-side{width:100%;justify-content:flex-end;}
  .cta-block{padding:24px 20px;flex-direction:column;align-items:flex-start;}
  .cta-block .btn-main,.cta-block .btn-ghost{width:100%;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;}
  .convert-bar{left:0;height:60px;padding:0 14px 0 16px;}
  .convert-bar .cb-text{font-size:13.5px;line-height:1.4;}
  .convert-bar .cb-text em{font-style:normal;display:block;font-size:12px;color:var(--c-ink-3);}
  .footer-bottom{padding-bottom:84px;}
}
@media (max-width:520px){
  .page-head h1{letter-spacing:-.2px;}
  .chip{padding:9px 13px;font-size:13.5px;}
  .entry-row .row-side{display:none;}
  .btn-main,.btn-ghost{width:100%;justify-content:center;}
  .cta-block .btn-ghost,.cta-block .btn-main{width:100%;}
  .convert-bar .cb-right .btn-main{display:none;}
}

/* roulang page: category2 */
:root{
  --c-primary:#12A594;
  --c-primary-deep:#0B6B62;
  --c-primary-soft:#E3F5F1;
  --c-accent:#FF7A2F;
  --c-accent-soft:#FFE9DC;
  --c-shell:#0E1A1D;
  --c-ink:#101B1F;
  --c-ink-2:#46585C;
  --c-ink-3:#7C8B8E;
  --c-line:#DCE5E4;
  --c-bg:#F5F8F7;
  --c-surface:#FFFFFF;
  --sh-1:0 2px 4px rgba(16,27,31,.04);
  --sh-2:0 14px 30px -14px rgba(16,27,31,.14);
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --sidebar-w:260px;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary-deep);}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;line-height:1.32;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}

/* ---------- 左侧导航壳 ---------- */
.side-shell{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--c-shell);
  display:flex;
  flex-direction:column;
  padding:22px 16px 20px;
  z-index:90;
  transition:transform .28s ease,width .2s ease;
}
.brand{
  display:flex;align-items:center;gap:11px;
  padding:4px 8px 20px;
  text-decoration:none;
}
.brand:hover{color:inherit;}
.brand-mark{
  width:38px;height:38px;flex:none;
  border-radius:11px;
  background:linear-gradient(140deg,var(--c-primary),var(--c-primary-deep));
  color:#fff;font-size:17px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{color:#fff;font-size:15px;font-weight:700;letter-spacing:.3px;}
.brand-text small{color:rgba(255,255,255,.5);font-size:11px;letter-spacing:1.2px;}
.side-nav{display:flex;flex-direction:column;gap:4px;margin-top:4px;}
.side-nav a{
  position:relative;
  display:flex;align-items:center;gap:12px;
  padding:11px 12px;
  border-radius:10px;
  color:rgba(255,255,255,.68);
  font-size:14.5px;
  transition:background .16s ease,color .16s ease;
}
.side-nav a i{width:20px;text-align:center;font-size:15px;flex:none;}
.side-nav a:hover{background:rgba(255,255,255,.06);color:#fff;}
.side-nav a.active{background:rgba(255,255,255,.08);color:#fff;font-weight:600;}
.side-nav a.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:0 3px 3px 0;background:var(--c-accent);
}
.side-foot{margin-top:auto;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);}
.side-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  width:100%;min-height:44px;
  background:var(--c-accent);color:#fff;
  border-radius:var(--r-btn);
  font-size:14px;font-weight:600;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.side-cta:hover{background:#ef6a1d;color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(255,122,47,.9);}
.side-note{margin:12px 0 0;font-size:11.5px;color:rgba(255,255,255,.42);letter-spacing:.4px;text-align:center;}

/* ---------- 移动端顶栏与遮罩 ---------- */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:60px;
  background:var(--c-shell);
  align-items:center;justify-content:space-between;
  padding:0 16px;z-index:100;
}
.topbar .brand-mark{width:32px;height:32px;border-radius:9px;font-size:15px;}
.topbar .tb-left{display:flex;align-items:center;gap:10px;color:#fff;font-size:15px;font-weight:700;text-decoration:none;}
.menu-btn{
  width:44px;height:44px;border:0;border-radius:10px;
  background:rgba(255,255,255,.08);color:#fff;font-size:17px;
  display:flex;align-items:center;justify-content:center;
  transition:background .16s ease;
}
.menu-btn:hover{background:rgba(255,255,255,.16);}
.drawer-mask{
  display:none;position:fixed;inset:0;background:rgba(14,26,29,.45);z-index:88;
}
.drawer-mask.open{display:block;}

/* ---------- 主内容 ---------- */
.site-main{
  margin-left:var(--sidebar-w);
  min-height:100vh;
  display:flex;flex-direction:column;
  transition:margin-left .2s ease;
}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

.notice-bar{
  background:var(--c-primary-soft);
  border-bottom:1px solid rgba(18,165,148,.16);
}
.notice-bar .wrap{
  display:flex;align-items:center;gap:10px;
  height:44px;font-size:13.5px;color:var(--c-primary-deep);
}
.notice-bar i{font-size:13px;}
.notice-bar a{margin-left:auto;color:var(--c-primary-deep);font-weight:600;}
.notice-bar a:hover{text-decoration:underline;}

.crumb{padding:24px 0 0;font-size:14px;color:var(--c-ink-3);}
.crumb a{color:var(--c-ink-3);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{margin:0 8px;color:var(--c-line);}
.crumb .now{color:var(--c-primary);font-weight:600;}

.page-head{padding:16px 0 30px;border-bottom:1px solid var(--c-line);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 10px;border-radius:var(--r-badge);
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:12px;font-weight:600;letter-spacing:.4px;
}
.page-head h1{
  margin:18px 0 12px;
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.25;letter-spacing:-.5px;
  max-width:900px;
}
.lead{font-size:16.5px;color:var(--c-ink-2);max-width:780px;}
.stat-row{display:flex;flex-wrap:wrap;gap:14px 46px;margin-top:26px;}
.stat b{
  display:block;font-family:var(--mono);
  font-size:26px;line-height:1.2;color:var(--c-accent);letter-spacing:-.5px;
}
.stat span{font-size:13.5px;color:var(--c-ink-3);}

/* ---------- 目录 + 分组 ---------- */
.body-grid{
  display:grid;
  grid-template-columns:236px minmax(0,1fr);
  gap:52px;
  padding:46px 0 10px;
  align-items:start;
}
.toc{position:sticky;top:26px;}
.toc-title{
  font-size:12.5px;letter-spacing:1.8px;font-weight:700;
  color:var(--c-ink-3);margin:0 0 14px;
}
.toc-list{border-left:1px solid var(--c-line);}
.toc-list a{
  display:block;
  margin-left:-1px;
  padding:10px 0 10px 16px;
  border-left:2px solid transparent;
  font-size:14.5px;color:var(--c-ink-2);
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.toc-list a span{font-family:var(--mono);font-size:12px;color:var(--c-ink-3);margin-right:8px;}
.toc-list a:hover{color:var(--c-primary);}
.toc-list a.active{
  color:var(--c-primary);font-weight:600;border-left-color:var(--c-primary);
  background:linear-gradient(90deg,var(--c-primary-soft),rgba(227,245,241,0));
}
.toc-list a.active span{color:var(--c-primary);}
.toc-tip{
  margin-top:22px;padding:16px;border-radius:var(--r-card);
  background:var(--c-surface);border:1px solid var(--c-line);box-shadow:var(--sh-1);
  font-size:13.5px;color:var(--c-ink-3);line-height:1.75;
}

.group{margin-bottom:54px;scroll-margin-top:26px;}
.group-head{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin-bottom:6px;}
.group-no{
  font-family:var(--mono);font-size:13px;font-weight:700;
  color:var(--c-accent);letter-spacing:1px;
}
.group-head h2{font-size:clamp(22px,2.6vw,32px);}
.group-desc{margin:0 0 18px;font-size:15px;color:var(--c-ink-3);}

.entry-list{border-top:1px solid var(--c-line);}
.entry-item{border-bottom:1px solid var(--c-line);}
.entry{
  display:grid;
  grid-template-columns:58px minmax(0,1fr) 22px;
  align-items:center;gap:16px;
  padding:17px 14px;
  color:inherit;
  transition:background .18s ease;
}
.entry:hover{background:var(--c-primary-soft);color:inherit;}
.entry-no{
  font-family:var(--mono);font-size:14px;font-weight:600;
  color:var(--c-accent);letter-spacing:.5px;
}
.entry-body h3{font-size:16px;font-weight:600;margin-bottom:2px;transition:color .18s ease;}
.entry:hover .entry-body h3{color:var(--c-primary-deep);}
.entry-body p{font-size:14.5px;color:var(--c-ink-2);line-height:1.7;}
.entry-arrow{color:var(--c-ink-3);font-size:13px;transition:transform .18s ease,color .18s ease;}
.entry:hover .entry-arrow{color:var(--c-primary);transform:translateX(3px);}

/* ---------- 图文板块 ---------- */
.feature{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:40px;align-items:center;
  margin:8px 0 56px;
  padding:28px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
}
.feature img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid var(--c-line);
  background:var(--c-bg);
}
.feature h2{font-size:clamp(21px,2.3vw,27px);margin-bottom:12px;}
.feature p{font-size:15.5px;}
.feature-points{margin-top:16px;border-top:1px dashed var(--c-line);padding-top:14px;}
.feature-points li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--c-ink-2);padding:6px 0;
}
.feature-points i{color:var(--c-primary);font-size:12px;margin-top:8px;}

/* ---------- FAQ ---------- */
.block-title{margin-bottom:8px;font-size:clamp(22px,2.6vw,30px);}
.block-sub{margin-bottom:24px;font-size:15px;color:var(--c-ink-3);}
.faq .accordion-item{
  background:var(--c-surface);
  border:1px solid var(--c-line)!important;
  border-radius:14px!important;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.faq .accordion-header{margin:0;}
.faq .accordion-button{
  min-height:44px;
  padding:16px 20px;
  font-size:16px;font-weight:600;
  color:var(--c-ink);
  background:var(--c-surface);
  box-shadow:none!important;
  border-radius:14px!important;
  transition:background .18s ease,color .18s ease;
}
.faq .accordion-button:not(.collapsed){
  color:var(--c-primary-deep);
  background:var(--c-primary-soft);
  box-shadow:inset 4px 0 0 var(--c-primary)!important;
}
.faq .accordion-button::after{
  width:14px;height:14px;background-size:14px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M2 5l6 6 6-6' fill='none' stroke='%2312A594' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}
.faq .accordion-body{
  padding:6px 20px 20px;
  font-size:15.5px;line-height:1.85;
  color:var(--c-ink-2);
  border-top:1px solid var(--c-line);
  padding-top:16px;
}

/* ---------- CTA ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:26px;
  margin:8px 0 0;
  padding:28px 32px;
  border-radius:18px;
  background:var(--c-primary-soft);
  border:1px solid rgba(18,165,148,.2);
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);margin-bottom:6px;}
.cta-band p{font-size:15px;color:var(--c-ink-2);max-width:640px;}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;
  background:var(--c-accent);color:#fff;
  border:0;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-main:hover{background:#ef6a1d;color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(255,122,47,.95);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  min-height:46px;padding:0 22px;
  background:var(--c-surface);color:var(--c-ink);
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  transition:border-color .18s ease,color .18s ease,transform .18s ease;
}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14.5px;}
.link-arrow i{font-size:12px;transition:transform .18s ease;}
.link-arrow:hover i{transform:translateX(3px);}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:88px;
  background:var(--c-shell);
  color:rgba(255,255,255,.72);
  padding:56px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1.25fr;
  gap:38px;
  padding-bottom:42px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:9px;font-size:15px;}
.footer-brand .brand-text{color:#fff;font-size:15px;font-weight:700;letter-spacing:.3px;}
.footer-about p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);margin:0;}
.site-footer h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:14px;letter-spacing:.4px;}
.footer-links{display:flex;flex-direction:column;gap:9px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-links a:hover{color:#fff;}
.footer-note{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.62);margin:0;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 92px;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 底部转化条 ---------- */
.bottom-cta{
  position:fixed;
  left:var(--sidebar-w);right:0;bottom:0;
  min-height:64px;
  background:var(--c-surface);
  border-top:1px solid var(--c-line);
  box-shadow:0 -8px 26px -20px rgba(16,27,31,.6);
  display:flex;align-items:center;
  z-index:70;
  transform:translateY(115%);
  transition:transform .28s ease;
}
.bottom-cta.show{transform:translateY(0);}
.bottom-cta .wrap{display:flex;align-items:center;gap:18px;}
.bottom-cta p{margin:0;font-size:14.5px;color:var(--c-ink-2);}
.bottom-cta p strong{color:var(--c-ink);}
.bottom-cta .btn-main{margin-left:auto;min-height:42px;}
.bottom-close{
  width:34px;height:34px;border:0;border-radius:9px;
  background:transparent;color:var(--c-ink-3);font-size:14px;
  display:flex;align-items:center;justify-content:center;
  transition:background .16s ease,color .16s ease;
}
.bottom-close:hover{background:var(--c-bg);color:var(--c-ink);}

/* ---------- 响应式 ---------- */
@media (max-width:1399px){
  :root{--sidebar-w:232px;}
  .body-grid{gap:42px;grid-template-columns:216px minmax(0,1fr);}
}
@media (max-width:1199px){
  :root{--sidebar-w:76px;}
  .side-shell{padding:20px 10px;align-items:center;}
  .brand{padding:4px 0 18px;justify-content:center;}
  .brand-text{display:none;}
  .side-nav{width:100%;align-items:center;}
  .side-nav a{justify-content:center;padding:12px 8px;width:100%;}
  .side-nav a span{display:none;}
  .side-cta span{display:none;}
  .side-note{display:none;}
  .body-grid{grid-template-columns:200px minmax(0,1fr);gap:34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:991px){
  .body-grid{grid-template-columns:minmax(0,1fr);gap:28px;padding-top:34px;}
  .toc{position:static;}
  .toc-list{display:flex;gap:8px;overflow-x:auto;border-left:0;padding-bottom:6px;}
  .toc-list li{flex:none;}
  .toc-list a{
    margin-left:0;padding:9px 14px;
    border-left:0;border:1px solid var(--c-line);border-radius:999px;
    background:var(--c-surface);white-space:nowrap;font-size:14px;
  }
  .toc-list a.active{border-color:var(--c-primary);background:var(--c-primary-soft);}
  .toc-tip{display:none;}
  .feature{grid-template-columns:minmax(0,1fr);gap:24px;padding:22px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 24px;}
  .cta-band .btn-main{width:100%;}
}
@media (max-width:767px){
  :root{--sidebar-w:0px;}
  body{font-size:15.5px;}
  .topbar{display:flex;}
  .site-main{margin-left:0;padding-top:60px;}
  .side-shell{
    width:266px;padding:22px 16px;
    transform:translateX(-100%);
    align-items:stretch;
    box-shadow:none;
  }
  .side-shell.open{transform:translateX(0);box-shadow:0 20px 60px rgba(0,0,0,.45);}
  .side-shell .brand{justify-content:flex-start;padding:4px 8px 20px;}
  .side-shell .brand-text{display:flex;}
  .side-shell .side-nav{align-items:stretch;}
  .side-shell .side-nav a{justify-content:flex-start;padding:11px 12px;}
  .side-shell .side-nav a span{display:inline;}
  .side-shell .side-cta span{display:inline;}
  .side-shell .side-note{display:block;}
  .notice-bar{display:none;}
  .wrap{padding:0 16px;}
  .crumb{padding-top:18px;}
  .page-head{padding:14px 0 24px;}
  .stat-row{gap:12px 30px;}
  .entry{grid-template-columns:44px minmax(0,1fr) 18px;gap:12px;padding:15px 8px;}
  .entry-no{font-size:13px;}
  .entry-body h3{font-size:15.5px;}
  .entry-body p{font-size:14px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:6px;padding-bottom:110px;}
  .bottom-cta{left:0;min-height:60px;padding-bottom:env(safe-area-inset-bottom);}
  .bottom-cta .wrap{gap:12px;}
  .bottom-cta p{font-size:13.5px;}
  .bottom-cta .btn-main{min-height:40px;padding:0 16px;font-size:14px;}
  .site-footer{margin-top:64px;padding-top:44px;}
}
@media (max-width:520px){
  .bottom-cta p{display:none;}
  .bottom-cta .btn-main{margin-left:0;flex:1;}
  .cta-band{padding:22px 18px;}
}

/* roulang page: category3 */
:root{
  --c-primary:#12A594;
  --c-primary-deep:#0B6B62;
  --c-primary-soft:#E3F5F1;
  --c-accent:#FF7A2F;
  --c-accent-soft:#FFE9DC;
  --c-shell:#0E1A1D;
  --c-ink:#101B1F;
  --c-ink-2:#46585C;
  --c-ink-3:#7C8B8E;
  --c-line:#DCE5E4;
  --c-bg:#F5F8F7;
  --c-surface:#FFFFFF;
  --sh-1:0 2px 4px rgba(16,27,31,.04);
  --sh-2:0 14px 30px -14px rgba(16,27,31,.14);
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --shell-w:260px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-bg);
}
h1,h2,h3,h4,h5{margin:0;color:var(--c-ink);font-weight:700;line-height:1.3;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,background .18s ease,border-color .18s ease;}
a:hover{color:var(--c-primary-deep);}
img{max-width:100%;display:block;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 左侧 App Shell ============ */
.app-shell{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--shell-w);
  background:var(--c-shell);
  display:flex;
  flex-direction:column;
  padding:22px 16px 18px;
  z-index:900;
  transition:width .2s ease;
}
.shell-logo{display:flex;align-items:center;gap:10px;padding:4px 8px 20px;color:#fff;}
.shell-logo:hover{color:#fff;}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;
  border-radius:10px;
  background:linear-gradient(140deg,var(--c-primary),var(--c-primary-deep));
  color:#fff;font-weight:700;font-size:17px;
  display:flex;align-items:center;justify-content:center;
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:.02em;line-height:1.25;display:flex;flex-direction:column;}
.brand-text em{font-style:normal;font-size:11px;font-weight:400;color:rgba(255,255,255,.5);letter-spacing:.06em;}
.side-nav{display:flex;flex-direction:column;gap:4px;margin-top:6px;}
.side-nav a{
  position:relative;
  display:flex;align-items:center;gap:12px;
  padding:11px 12px 11px 14px;
  border-radius:10px;
  color:rgba(255,255,255,.72);
  font-size:15px;
  transition:background .16s ease,color .16s ease;
}
.side-nav a i{width:20px;text-align:center;font-size:15px;color:currentColor;}
.side-nav a:hover{background:rgba(255,255,255,.06);color:#fff;}
.side-nav a.active{background:rgba(255,255,255,.08);color:#fff;font-weight:600;}
.side-nav a.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;background:var(--c-accent);
}
.shell-foot{margin-top:auto;padding:16px 8px 0;border-top:1px solid rgba(255,255,255,.1);}
.shell-cta{
  display:block;text-align:center;
  background:var(--c-accent);color:#fff;
  font-size:14px;font-weight:600;
  padding:10px 12px;border-radius:var(--r-btn);
  transition:filter .18s ease,transform .18s ease;
}
.shell-cta:hover{color:#fff;filter:brightness(.92);transform:translateY(-1px);}
.shell-tip{display:block;margin-top:10px;font-size:12px;color:rgba(255,255,255,.42);line-height:1.6;}

/* ============ 主区域 ============ */
.app-main{margin-left:var(--shell-w);min-height:100vh;padding-bottom:70px;}
.notice-bar{background:var(--c-primary-soft);color:var(--c-primary-deep);font-size:14px;}
.notice-bar .wrap{height:44px;display:flex;align-items:center;gap:10px;}
.notice-bar i{font-size:13px;}
.notice-bar a{margin-left:auto;font-weight:600;white-space:nowrap;}

/* 移动端顶栏 */
.m-topbar{display:none;}

/* ============ 面包屑与页头 ============ */
.crumb{padding:26px 0 0;font-size:14px;color:var(--c-ink-3);}
.crumb ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.crumb li::after{content:"/";margin-left:8px;color:var(--c-line);}
.crumb li:last-child::after{content:"";}
.crumb a{color:var(--c-ink-3);}
.crumb a:hover{color:var(--c-primary);}
.crumb .now{color:var(--c-primary);font-weight:600;}

.page-head{padding:22px 0 40px;}
.page-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c-primary-soft);color:var(--c-primary-deep);
  font-size:12px;font-weight:600;letter-spacing:.08em;
  padding:6px 12px;border-radius:var(--r-badge);margin-bottom:16px;
}
.page-head h1{font-size:clamp(28px,3.6vw,42px);letter-spacing:-.01em;margin-bottom:14px;}
.page-head .lede{font-size:17px;color:var(--c-ink-2);max-width:760px;line-height:1.8;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--c-surface);border:1px solid var(--c-line);
  color:var(--c-ink-2);font-size:13px;
  padding:7px 14px;border-radius:999px;
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--c-primary);}
.chip--hot .dot{background:var(--c-accent);}

/* ============ 数据条 ============ */
.stat-bar{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:8px 0;
  display:grid;
  grid-template-columns:repeat(4,1fr);
}
.stat-cell{padding:18px 24px;border-left:1px solid var(--c-line);}
.stat-cell:first-child{border-left:0;}
.stat-cell .num{
  font-size:28px;font-weight:700;color:var(--c-accent);
  font-variant-numeric:tabular-nums;line-height:1.2;
  font-family:Inter,"SFMono-Regular",Consolas,monospace;
}
.stat-cell .cap{font-size:14px;color:var(--c-ink-2);margin-top:4px;}

/* ============ 通用板块 ============ */
.section{padding:72px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(22px,2.4vw,30px);}
.section-head .sub{font-size:14px;color:var(--c-ink-3);margin-top:6px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);}
.text-link i{transition:transform .18s ease;font-size:12px;}
.text-link:hover i{transform:translateX(3px);}

/* ============ 主体两栏：FAQ + 速查行组 ============ */
.qa-layout{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:28px;align-items:start;}
.panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:26px 24px;
}
.panel h2{font-size:20px;margin-bottom:6px;}
.panel .panel-sub{font-size:13px;color:var(--c-ink-3);margin-bottom:20px;}

/* FAQ 手风琴（Bootstrap 重写） */
.faq-acc .accordion-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:none;
}
.faq-acc .accordion-item:last-child{margin-bottom:0;}
.faq-acc .accordion-button{
  position:relative;
  background:var(--c-surface);
  color:var(--c-ink);
  font-size:16px;font-weight:600;
  line-height:1.6;
  padding:16px 46px 16px 18px;
  min-height:44px;
  border:0;
  border-radius:14px;
  box-shadow:none;
  transition:background .18s ease,color .18s ease;
}
.faq-acc .accordion-button::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:4px;border-radius:0 4px 4px 0;
  background:var(--c-primary);transform:scaleY(0);transform-origin:center;transition:transform .2s ease;
}
.faq-acc .accordion-button:not(.collapsed){
  background:var(--c-primary-soft);
  color:var(--c-primary-deep);
  box-shadow:none;
}
.faq-acc .accordion-button:not(.collapsed)::before{transform:scaleY(1);}
.faq-acc .accordion-button::after{
  position:absolute;right:16px;
  background-image:none;
  font-family:"Font Awesome 6 Free";font-weight:900;
  content:"\f078";
  font-size:12px;color:var(--c-ink-3);
  width:auto;height:auto;
  transition:transform .2s ease,color .2s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--c-primary);}
.faq-acc .accordion-button:focus{box-shadow:none;border:0;}
.faq-acc .accordion-body{padding:4px 18px 18px;font-size:16px;line-height:1.85;color:var(--c-ink-2);}

/* 速查行组 */
.quick-list{display:flex;flex-direction:column;gap:10px;}
.quick-row{
  display:grid;
  grid-template-columns:auto 1fr auto;
  gap:14px;
  align-items:center;
  padding:14px 16px;
  border-radius:12px;
  background:var(--c-surface);
  border:1px solid transparent;
  transition:background .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.quick-row:nth-child(even){background:var(--c-bg);}
.quick-row:hover{background:var(--c-primary-soft);border-color:rgba(18,165,148,.28);box-shadow:var(--sh-1);}
.q-tag{
  display:inline-block;
  background:var(--c-primary-soft);color:var(--c-primary-deep);
  font-size:12px;font-weight:600;
  padding:5px 10px;border-radius:var(--r-badge);
  white-space:nowrap;
}
.quick-row:hover .q-tag{background:#fff;}
.q-desc{font-size:14.5px;color:var(--c-ink-2);line-height:1.7;}
.q-link{font-size:13px;font-weight:600;white-space:nowrap;display:inline-flex;align-items:center;gap:5px;}
.q-link i{font-size:11px;transition:transform .18s ease;}
.q-link:hover i{transform:translateX(3px);}

/* ============ 榜单快照 ============ */
.rank-layout{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:28px;align-items:stretch;}
.rank-figure{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--c-line);
  background:var(--c-line);
  box-shadow:var(--sh-1);
  position:relative;
}
.rank-figure img{width:100%;height:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .4s ease;}
.rank-figure:hover img{transform:scale(1.03);}
.rank-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:18px 20px;
  background:linear-gradient(180deg,rgba(14,26,29,0),rgba(14,26,29,.88));
  color:rgba(255,255,255,.9);font-size:13px;line-height:1.7;
}
.rank-figure figcaption strong{display:block;color:#fff;font-size:15px;margin-bottom:4px;}
.rank-list{display:flex;flex-direction:column;gap:12px;}
.rank-item{
  display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:14px;
  padding:16px 20px;
  box-shadow:var(--sh-1);
  transition:box-shadow .18s ease,border-color .18s ease,transform .18s ease;
}
.rank-item:hover{box-shadow:var(--sh-2);border-color:var(--c-primary-soft);transform:translateY(-2px);}
.rank-no{
  font-family:Inter,"SFMono-Regular",Consolas,monospace;
  font-size:22px;font-weight:700;color:var(--c-accent);
  min-width:38px;text-align:left;
}
.rank-item h3{font-size:16px;font-weight:600;margin-bottom:4px;}
.rank-item .meta{font-size:13px;color:var(--c-ink-3);}
.rank-item .tagline{
  font-size:12px;font-weight:600;color:var(--c-primary-deep);
  background:var(--c-primary-soft);padding:4px 10px;border-radius:var(--r-badge);white-space:nowrap;
}

/* ============ 阶段进度 ============ */
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:28px 24px;box-shadow:var(--sh-1);
}
.step{position:relative;padding-right:14px;}
.step::after{
  content:"";position:absolute;top:15px;right:-12px;width:24px;height:1px;background:var(--c-line);
}
.step:last-child::after{display:none;}
.step .dot-num{
  width:32px;height:32px;border-radius:50%;
  background:var(--c-primary-soft);color:var(--c-primary-deep);
  font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  margin-bottom:12px;font-family:Inter,monospace;
}
.step h3{font-size:16px;margin-bottom:6px;}
.step p{font-size:14px;color:var(--c-ink-2);line-height:1.75;}

/* ============ CTA 整宽条 ============ */
.cta-band{
  margin-top:80px;
  border-radius:var(--r-card);
  overflow:hidden;
  position:relative;
  background-color:var(--c-shell);
  background-image:linear-gradient(100deg,rgba(14,26,29,.94) 0%,rgba(14,26,29,.78) 52%,rgba(11,107,98,.62) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  padding:44px 40px;
  display:flex;align-items:center;gap:28px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:clamp(20px,2.2vw,26px);margin-bottom:8px;}
.cta-band p{color:rgba(255,255,255,.76);font-size:15px;max-width:640px;}
.cta-band .cta-actions{margin-left:auto;display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 按钮 ============ */
.btn-accent,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:all .18s ease;
}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 8px 18px -10px rgba(255,122,47,.9);}
.btn-accent:hover{background:#F06A1D;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;color:var(--c-ink);border-color:var(--c-line);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost.on-dark{color:#fff;border-color:rgba(255,255,255,.42);}
.btn-ghost.on-dark:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08);}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-shell);color:rgba(255,255,255,.72);margin-top:80px;padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-about p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);}
.site-footer h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-links a:hover{color:#fff;}
.footer-note{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.6);}
.footer-bottom{
  margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 底部固定转化条 ============ */
.dock-bar{
  position:fixed;left:var(--shell-w);right:0;bottom:0;
  background:var(--c-surface);
  border-top:1px solid var(--c-line);
  box-shadow:0 -8px 24px -18px rgba(16,27,31,.5);
  transform:translateY(110%);
  transition:transform .26s ease;
  z-index:880;
}
.dock-bar.show{transform:translateY(0);}
.dock-inner{height:64px;display:flex;align-items:center;gap:18px;}
.dock-inner p{font-size:14px;color:var(--c-ink-2);margin:0;}
.dock-inner .btn-accent{margin-left:auto;min-height:40px;padding:9px 18px;font-size:14px;}
.dock-close{
  background:none;border:0;color:var(--c-ink-3);font-size:16px;
  width:32px;height:32px;border-radius:8px;cursor:pointer;
}
.dock-close:hover{background:var(--c-bg);color:var(--c-ink);}

/* ============ 抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,26,29,.45);
  opacity:0;visibility:hidden;transition:opacity .2s ease;z-index:950;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:268px;
  background:var(--c-shell);z-index:960;
  transform:translateX(-102%);transition:transform .24s ease;
  display:flex;flex-direction:column;padding:20px 16px;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 6px 18px;}
.drawer-close{background:none;border:0;color:rgba(255,255,255,.75);font-size:20px;width:36px;height:36px;border-radius:9px;}
.drawer-close:hover{background:rgba(255,255,255,.08);color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  :root{--shell-w:232px;}
  .stat-cell{padding:16px 18px;}
}
@media (max-width:1199px){
  :root{--shell-w:76px;}
  .app-shell{padding:20px 10px 16px;align-items:center;}
  .shell-logo{padding:4px 0 20px;justify-content:center;}
  .brand-text{display:none;}
  .side-nav{width:100%;align-items:center;}
  .side-nav a{justify-content:center;padding:12px 0;}
  .side-nav a span{display:none;}
  .shell-foot{padding:14px 0 0;text-align:center;}
  .shell-cta{padding:10px;font-size:13px;}
  .shell-cta .cta-full{display:none;}
  .shell-tip{display:none;}
  .qa-layout{grid-template-columns:1fr;}
  .rank-layout{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1.2fr 1fr 1fr;gap:28px;}
}
@media (max-width:991px){
  :root{--shell-w:0px;}
  .app-shell{display:none;}
  .app-main{margin-left:0;padding-top:60px;}
  .m-topbar{
    display:flex;align-items:center;gap:12px;
    position:fixed;top:0;left:0;right:0;height:60px;
    padding:0 16px;background:var(--c-surface);
    border-bottom:1px solid var(--c-line);z-index:900;
  }
  .m-topbar .nav-toggle{
    background:none;border:1px solid var(--c-line);border-radius:9px;
    width:40px;height:40px;color:var(--c-ink);font-size:15px;
  }
  .m-topbar .brand-sm{display:flex;align-items:center;gap:9px;color:var(--c-ink);font-weight:700;font-size:15px;}
  .m-topbar .brand-sm:hover{color:var(--c-ink);}
  .notice-bar .wrap{height:auto;padding-top:10px;padding-bottom:10px;font-size:13px;}
  .notice-bar a{display:none;}
  .steps{grid-template-columns:repeat(2,1fr);gap:22px;}
  .step::after{display:none;}
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .stat-cell{border-left:1px solid var(--c-line);}
  .stat-cell:nth-child(odd){border-left:0;}
  .stat-cell:nth-child(n+3){border-top:1px solid var(--c-line);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .dock-bar{left:0;}
  .cta-band{padding:34px 24px;}
  .cta-band .cta-actions{margin-left:0;width:100%;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .wrap{padding:0 16px;}
  .section{padding:52px 0 0;}
  .page-head{padding:18px 0 30px;}
  .page-head .lede{font-size:15.5px;}
  .stat-bar{grid-template-columns:1fr;}
  .stat-cell{border-left:0;border-top:1px solid var(--c-line);}
  .stat-cell:first-child{border-top:0;}
  .steps{grid-template-columns:1fr;padding:22px 18px;}
  .panel{padding:20px 16px;}
  .quick-row{grid-template-columns:1fr;gap:8px;align-items:flex-start;}
  .q-link{justify-self:flex-start;}
  .rank-item{grid-template-columns:auto 1fr;row-gap:8px;}
  .rank-item .tagline{grid-column:2;justify-self:start;}
  .footer-grid{grid-template-columns:1fr;}
  .dock-inner{height:auto;padding-top:12px;padding-bottom:calc(12px + env(safe-area-inset-bottom));flex-wrap:wrap;gap:10px;}
  .dock-inner p{font-size:13px;flex:1 1 100%;}
  .dock-inner .btn-accent{margin-left:0;width:100%;}
  .cta-band{margin-top:52px;}
  .site-footer{margin-top:52px;}
  .app-main{padding-bottom:110px;}
}