/* roulang page: index */
:root{
  --brand:#0F3A34;
  --brand-dark:#0A2A25;
  --brand-light:#1C574C;
  --accent:#C2703D;
  --accent-deep:#8E4C24;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --line:#E7E2D8;
  --soft:#EFEBE3;
  --ink:#1A1D1C;
  --muted:#5A6763;
  --faint:#8A938F;
  --ok:#2E7D6B;
  --warn:#B98A3D;
  --danger:#B4453A;
  --r-card:12px;
  --r-btn:4px;
  --r-input:6px;
  --r-img:10px;
  --sh1:0 1px 2px rgba(16,32,28,.05);
  --sh2:0 12px 28px rgba(16,32,28,.09);
  --f-title:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --f-body:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
  --bs-primary:#0F3A34;
  --bs-body-color:#1A1D1C;
  --bs-body-bg:#F6F4EF;
  --bs-border-color:#E7E2D8;
  --bs-border-radius:12px;
  --bs-link-color:#0F3A34;
  --bs-link-hover-color:#C2703D;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--f-body);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  padding-bottom:76px;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .25s ease,border-color .25s ease}
a:hover{color:var(--accent)}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{font-family:var(--f-title);color:var(--ink);margin:0;letter-spacing:-.01em;line-height:1.3}
p{margin:0 0 1.1em}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(15,58,52,.28);outline-offset:2px;border-radius:4px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section--soft{background:var(--soft)}
.section--tight{padding:72px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--accent);text-transform:none;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.section-title{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:700}
.section-sub{color:var(--muted);font-size:15px;max-width:640px;margin-top:12px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(16,32,28,.06)}
.nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--f-title);font-weight:700;font-size:18px;color:var(--brand);white-space:nowrap}
.logo:hover{color:var(--brand)}
.logo-mark{
  width:36px;height:36px;border-radius:8px;background:var(--brand);color:#F6F4EF;
  display:grid;place-items:center;font-size:14px;font-family:var(--f-title);font-weight:700;letter-spacing:.04em;
}
.nav-links{display:flex;align-items:center;gap:4px;margin:0}
.nav-links a{position:relative;display:inline-block;padding:8px 12px;font-size:15px;color:var(--muted);border-radius:6px}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform .3s ease;
}
.nav-links a:hover{color:var(--brand)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--brand);font-weight:600}
.nav-right{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:40px;height:40px;border-radius:8px;border:1px solid var(--line);background:var(--card);
  display:grid;place-items:center;color:var(--brand);transition:all .25s ease;
}
.icon-btn:hover{background:var(--soft);color:var(--brand-light);border-color:var(--brand-light)}

/* ---------- 按钮 ---------- */
.btn-main{
  display:inline-flex;align-items:center;gap:8px;background:var(--brand);color:#F6F4EF;
  border:1px solid var(--brand);border-radius:var(--r-btn);padding:12px 22px;
  font-size:15px;font-weight:600;cursor:pointer;transition:all .3s ease;
}
.btn-main:hover{background:var(--brand-light);border-color:var(--brand-light);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-main:active{transform:translateY(0)}
.btn-main .arw{transition:transform .3s ease}
.btn-main:hover .arw{transform:translateX(3px)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;background:transparent;color:var(--brand);
  border:1px solid var(--brand);border-radius:var(--r-btn);padding:12px 22px;
  font-size:15px;font-weight:600;transition:all .3s ease;
}
.btn-ghost:hover{background:var(--soft);color:var(--brand)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.link-text{display:inline-block;color:var(--brand);font-weight:600;border-bottom:1px solid var(--accent);padding-bottom:2px}
.link-text:hover{color:var(--accent);border-bottom-width:2px}
.tag{
  display:inline-flex;align-items:center;padding:3px 11px;border-radius:999px;
  background:var(--bg);color:var(--brand);border:1px solid var(--line);font-size:12.5px;
}
.tag--accent{background:#FAF0E8;color:var(--accent-deep);border-color:#EFD9C7}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--brand-dark);color:#F6F4EF}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.44;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,42,37,.92) 0%,rgba(10,42,37,.74) 54%,rgba(10,42,37,.48) 100%);
}
.hero-inner{position:relative;z-index:2;padding:104px 0 92px;max-width:780px}
.hero h1{
  font-size:clamp(2.25rem,5.2vw,3.9rem);font-weight:700;line-height:1.15;
  letter-spacing:-.02em;color:#F6F4EF;margin-bottom:22px;
}
.hero-sub{font-size:17.5px;color:rgba(246,244,239,.84);max-width:640px;margin-bottom:32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:28px}
.hero .btn-ghost{color:#F6F4EF;border-color:rgba(246,244,239,.5)}
.hero .btn-ghost:hover{background:rgba(246,244,239,.12);color:#fff;border-color:#F6F4EF}
.hero-points{display:flex;align-items:center;flex-wrap:wrap;gap:14px;font-size:14px;color:rgba(246,244,239,.78)}
.hero-points span.sep{width:1px;height:14px;background:rgba(246,244,239,.32)}

/* ---------- 信任条 ---------- */
.trustbar{background:var(--brand);color:#F6F4EF;padding:0}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.trust-item{padding:34px 24px;border-right:1px solid rgba(246,244,239,.16)}
.trust-item:last-child{border-right:0}
.trust-num{font-family:var(--f-title);font-size:32px;font-weight:700;color:#F6F4EF;line-height:1.2}
.trust-label{font-size:13.5px;color:rgba(246,244,239,.72);margin-top:6px}

/* ---------- 痛点 ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.pain-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh1);transition:all .3s ease;
}
.pain-item:hover{transform:translateY(-3px);box-shadow:var(--sh2)}
.pain-item:nth-child(1){grid-column:span 7}
.pain-item:nth-child(2){grid-column:span 5}
.pain-item:nth-child(3){grid-column:span 5}
.pain-item:nth-child(4){grid-column:span 7}
.pain-no{font-family:var(--f-title);font-size:15px;font-weight:700;color:var(--accent);letter-spacing:.1em;margin-bottom:12px}
.pain-item h3{font-size:19px;font-weight:600;margin-bottom:10px}
.pain-item p{font-size:14.5px;color:var(--muted);margin:0}

/* ---------- 时间线 ---------- */
.timeline{margin-top:8px}
.tl-item{
  display:grid;grid-template-columns:130px 1fr;gap:32px;
  padding:34px 0;border-top:1px dashed var(--line);align-items:start;
}
.tl-item:first-child{border-top:0;padding-top:0}
.tl-no{font-family:var(--f-title);font-size:52px;font-weight:700;color:var(--accent);line-height:1;opacity:.9}
.tl-body h3{font-size:21px;font-weight:600;margin-bottom:10px}
.tl-body p{color:var(--muted);font-size:15.5px;margin:0;max-width:760px}
.tl-body ul{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}

/* ---------- 成果区 ---------- */
.result-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.stat-bar{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:32px}
.stat-cell{padding:26px 20px;border-right:1px solid var(--line)}
.stat-cell:last-child{border-right:0}
.stat-num{font-family:var(--f-title);font-size:clamp(2.4rem,4.6vw,3.4rem);font-weight:700;color:var(--brand);line-height:1.05}
.stat-num small{font-size:.45em;color:var(--muted);margin-left:4px}
.stat-txt{font-size:13.5px;color:var(--muted);margin-top:8px}
.result-copy p{color:var(--muted);font-size:16px}
.result-img{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);background:var(--card)}
.result-img img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s ease}
.result-img:hover img{transform:scale(1.03)}

/* ---------- 证言 ---------- */
.quote-main{
  background:var(--card);border:1px solid var(--line);border-left:4px solid var(--accent);
  border-radius:var(--r-card);padding:38px 40px;box-shadow:var(--sh1);margin-bottom:24px;
}
.quote-main p{font-family:var(--f-title);font-size:clamp(1.15rem,2.1vw,1.5rem);line-height:1.7;color:var(--ink);margin-bottom:20px}
.quote-meta{font-size:13px;color:var(--faint)}
.quote-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quote-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh1)}
.quote-item p{font-size:14.5px;color:var(--muted);margin-bottom:14px}
.quote-item .quote-meta{font-size:13px}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh1);
  transition:transform .3s ease,box-shadow .3s ease;color:inherit;height:100%;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);color:inherit}
.news-thumb{position:relative;background:var(--soft)}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-thumb .tag{position:absolute;left:14px;top:14px;background:rgba(246,244,239,.94)}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.news-body h3{font-size:18px;font-weight:600;line-height:1.45;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-exc{
  font-size:14px;color:var(--muted);margin:0 0 16px;display:-webkit-box;
  -webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{margin-top:auto;font-size:13px;color:var(--faint);display:flex;align-items:center;gap:10px}
.news-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--faint)}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);padding:44px 24px;text-align:center;
  color:var(--muted);font-size:15px;background:var(--card);margin:0;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px;margin:0 auto}
.accordion-item{border:1px solid var(--line);border-radius:var(--r-card);background:var(--card);margin-bottom:14px;overflow:hidden}
.accordion-button{
  font-family:var(--f-title);font-size:17px;font-weight:600;color:var(--ink);
  background:var(--card);padding:22px 58px 22px 24px;box-shadow:none;border:0;
}
.accordion-button:not(.collapsed){color:var(--brand);background:var(--card);box-shadow:none}
.accordion-button:focus{box-shadow:none;outline:3px solid rgba(15,58,52,.2);outline-offset:-3px}
.accordion-button::after{
  display:none !important;
}
.accordion-button{position:relative}
.accordion-button .pm{
  position:absolute;right:22px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;display:grid;place-items:center;color:var(--brand);font-size:19px;
  font-family:var(--f-body);font-weight:500;
}
.accordion-button:not(.collapsed) .pm::before{content:"−"}
.accordion-button.collapsed .pm::before{content:"+"}
.accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--accent);
  transform:scaleY(0);transform-origin:top;transition:transform .3s ease;
}
.accordion-button:not(.collapsed)::before{transform:scaleY(1)}
.accordion-body{padding:0 24px 24px;font-size:15px;line-height:1.85;color:var(--muted)}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand);color:#F6F4EF;padding:72px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-inner h2{color:#F6F4EF;font-size:clamp(1.5rem,2.8vw,2.2rem);font-weight:700;margin-bottom:12px}
.cta-inner p{color:rgba(246,244,239,.78);font-size:15.5px;margin:0;max-width:560px}
.cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.cta-band .btn-main{background:#F6F4EF;color:var(--brand);border-color:#F6F4EF}
.cta-band .btn-main:hover{background:#fff;color:var(--brand-dark);border-color:#fff}
.cta-link{color:rgba(246,244,239,.88);border-bottom:1px solid var(--accent);padding-bottom:2px;font-weight:600}
.cta-link:hover{color:#fff;border-bottom-width:2px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand);color:rgba(246,244,239,.8);padding:72px 0 0;font-size:13.5px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.foot-brand-head{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-brand-head .logo-mark{background:rgba(246,244,239,.14);color:#F6F4EF}
.foot-name{font-family:var(--f-title);font-size:17px;font-weight:700;color:#F6F4EF}
.foot-brand p{color:rgba(246,244,239,.66);font-size:13.5px;line-height:1.8;max-width:300px;margin:0}
.foot-col h4{font-size:14px;font-weight:600;color:rgba(246,244,239,.55);margin-bottom:16px;font-family:var(--f-body)}
.foot-col li{margin-bottom:10px}
.foot-col a{color:rgba(246,244,239,.84);font-size:13px}
.foot-col a:hover{color:var(--accent)}
.foot-bottom{
  border-top:1px solid rgba(246,244,239,.16);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:rgba(246,244,239,.55);
}

/* ---------- 移动端底部导航 ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:var(--card);border-top:1px solid var(--line);
  display:none;align-items:stretch;box-shadow:0 -4px 16px rgba(16,32,28,.06);
}
.tab-item{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  font-size:11px;color:var(--faint);position:relative;
}
.tab-item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.tab-item.active{color:var(--brand);font-weight:600}
.tab-item.active::after{
  content:"";position:absolute;bottom:6px;width:4px;height:4px;border-radius:50%;background:var(--accent);
}

/* ---------- 入场动效 ---------- */
.js-reveal [data-reveal]{opacity:0;transform:translateY(24px)}
.js-reveal [data-reveal].is-in{opacity:1;transform:none;transition:opacity .42s cubic-bezier(.2,.7,.2,1),transform .42s cubic-bezier(.2,.7,.2,1)}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .js-reveal [data-reveal]{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .wrap{padding:0 28px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991px){
  .wrap{padding:0 24px}
  .section{padding:72px 0}
  .nav-links{display:none}
  .tabbar{display:flex}
  body{padding-bottom:76px}
  .hero-inner{padding:76px 0 68px}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .trust-item:nth-child(2){border-right:0}
  .trust-item:nth-child(1),.trust-item:nth-child(2){border-bottom:1px solid rgba(246,244,239,.16)}
  .pain-item:nth-child(n){grid-column:span 12}
  .result-wrap{grid-template-columns:1fr;gap:32px}
  .quote-row{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .tl-item{grid-template-columns:90px 1fr;gap:22px}
  .tl-no{font-size:42px}
}
@media (max-width:767px){
  body{font-size:16px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .hero h1{font-size:2.1rem}
  .hero-sub{font-size:16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn-main,.hero-actions .btn-ghost{justify-content:center;width:100%}
  .trust-item{padding:24px 18px}
  .trust-num{font-size:26px}
  .stat-bar{grid-template-columns:1fr}
  .stat-cell{border-right:0;border-bottom:1px solid var(--line)}
  .stat-cell:last-child{border-bottom:0}
  .news-grid{grid-template-columns:1fr}
  .quote-main{padding:28px 24px}
  .foot-grid{grid-template-columns:1fr}
  .cta-inner{gap:24px}
  .cta-actions{width:100%}
  .cta-actions .btn-main{width:100%;justify-content:center}
  .pain-item{padding:24px 22px}
  .tl-item{grid-template-columns:1fr;gap:10px}
}
@media (max-width:520px){
  .wrap{padding:0 18px}
  .logo{font-size:16px}
  .logo-mark{width:32px;height:32px;font-size:13px}
  .hero h1{font-size:1.85rem}
  .section-title{font-size:1.4rem}
}

/* roulang page: category1 */
:root{
  --ink:#0F3A34;
  --ink-deep:#0A2A25;
  --ink-light:#1C574C;
  --clay:#C2703D;
  --clay-soft:#F3E4D8;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --line:#E7E2D8;
  --soft:#EFEBE3;
  --text:#1A1D1C;
  --muted:#5A6763;
  --weak:#8A938F;
  --ok:#2E7D6B;
  --warn:#B98A3D;
  --err:#B4453A;
  --r-card:12px;
  --r-btn:4px;
  --r-input:6px;
  --r-img:10px;
  --sh-1:0 1px 2px rgba(16,32,28,.05);
  --sh-2:0 12px 28px rgba(16,32,28,.09);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --bs-primary:#0F3A34;
  --bs-primary-rgb:15,58,52;
  --bs-body-color:#1A1D1C;
  --bs-body-bg:#F6F4EF;
  --bs-border-color:#E7E2D8;
  --bs-border-radius:12px;
  --bs-link-color:#0F3A34;
  --bs-link-hover-color:#1C574C;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--ink-light)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);margin:0;letter-spacing:-.01em;font-weight:700}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:var(--clay-soft);color:var(--ink-deep)}
:focus-visible{outline:3px solid rgba(15,58,52,.28);outline-offset:2px;border-radius:4px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.sec-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-block;
  font-size:12.5px;
  letter-spacing:.16em;
  color:var(--clay);
  font-weight:600;
  margin-bottom:14px;
}
.sec-head h2{font-size:clamp(1.65rem,3vw,2.5rem);line-height:1.25;margin-bottom:16px}
.sec-head p{color:var(--muted);margin:0;max-width:680px}
.muted{color:var(--muted)}
.small{font-size:13px;line-height:1.6}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(16,32,28,.06)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:700;font-size:18px;color:var(--ink);white-space:nowrap}
.logo-mark{
  width:34px;height:34px;border-radius:8px;
  background:var(--ink);color:#F6F4EF;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--sans);font-size:13px;font-weight:700;letter-spacing:.02em;
  flex:0 0 auto;
}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  position:relative;display:inline-block;
  padding:9px 13px;font-size:15px;color:var(--muted);
  border-radius:var(--r-btn);
}
.nav-links a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;
  background:var(--clay);transform:scaleX(0);transform-origin:left;
  transition:transform .3s cubic-bezier(.2,.7,.2,1);
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink);font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:12px}
.btn-main{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--ink);color:#F6F4EF;
  border:1px solid var(--ink);border-radius:var(--r-btn);
  padding:12px 22px;font-size:15px;font-weight:600;
  transition:background .25s ease,transform .25s ease,box-shadow .25s ease;
}
.btn-main:hover{background:var(--ink-light);border-color:var(--ink-light);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-main:active{transform:translateY(0)}
.btn-main .arw{transition:transform .25s ease}
.btn-main:hover .arw{transform:translateX(3px)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;color:var(--ink);
  border:1px solid var(--ink);border-radius:var(--r-btn);
  padding:12px 22px;font-size:15px;font-weight:600;
  transition:background .25s ease,transform .25s ease;
}
.btn-ghost:hover{background:var(--soft);color:var(--ink);transform:translateY(-1px)}
.btn-paper{
  display:inline-flex;align-items:center;gap:8px;
  background:#F6F4EF;color:var(--ink);border:1px solid #F6F4EF;
  border-radius:var(--r-btn);padding:13px 24px;font-size:15px;font-weight:600;
  transition:background .25s ease,transform .25s ease}
.btn-paper:hover{background:#fff;color:var(--ink-deep);transform:translateY(-1px)}
.icon-btn{
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;
  transition:border-color .25s ease,background .25s ease;
}
.icon-btn:hover{border-color:var(--ink);background:var(--soft);color:var(--ink)}
.text-link{
  color:var(--ink);font-weight:600;
  box-shadow:inset 0 -1px 0 var(--clay);
  transition:box-shadow .25s ease,color .25s ease;
}
.text-link:hover{box-shadow:inset 0 -2px 0 var(--clay);color:var(--ink-light)}
.tag{
  display:inline-block;font-size:12.5px;line-height:1.5;
  padding:5px 12px;border-radius:999px;
  background:#fff;color:var(--ink);border:1px solid var(--line);
}
.tag-clay{background:var(--clay-soft);color:#7A431F;border-color:#EBD3C0}

/* ---------- 面包屑 ---------- */
.crumb{font-size:13px;color:rgba(246,244,239,.78);margin-bottom:22px}
.crumb a{color:rgba(246,244,239,.78)}
.crumb a:hover{color:#fff}
.crumb .sep{margin:0 8px;color:rgba(246,244,239,.45)}
.crumb .cur{color:#F6F4EF}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  color:#F6F4EF;
  background-image:linear-gradient(115deg,rgba(10,42,37,.94) 0%,rgba(15,58,52,.86) 52%,rgba(28,87,76,.72) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  padding:74px 0 68px;
}
.page-hero h1{
  color:#F6F4EF;
  font-size:clamp(1.9rem,4.4vw,3rem);
  line-height:1.18;
  letter-spacing:-.02em;
  margin-bottom:18px;
  max-width:820px;
}
.page-hero .lead{font-size:17px;color:rgba(246,244,239,.85);max-width:640px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.page-hero .btn-ghost{color:#F6F4EF;border-color:rgba(246,244,239,.55)}
.page-hero .btn-ghost:hover{background:rgba(246,244,239,.12);color:#fff}
.hero-facts{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13.5px;color:rgba(246,244,239,.78)}
.hero-facts span.bar{width:1px;height:12px;background:rgba(246,244,239,.35);display:inline-block}

/* ---------- 提示条 ---------- */
.notice{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--soft);border-left:3px solid var(--clay);
  border-radius:0 var(--r-card) var(--r-card) 0;
  padding:20px 24px;margin:0 0 8px;
}
.notice strong{font-family:var(--serif);color:var(--ink);display:block;margin-bottom:4px;font-size:16px}
.notice p{margin:0;font-size:14.5px;color:var(--muted)}

/* ---------- 交替图文 ---------- */
.split{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;align-items:center;padding:52px 0;
}
.split + .split{border-top:1px dashed var(--line)}
.split.reverse .split-media{order:2}
.split-media{overflow:hidden;border-radius:var(--r-img);border:1px solid var(--line);background:#fff}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
.split-media:hover img{transform:scale(1.03)}
.split-body h3{font-size:clamp(1.25rem,2.2vw,1.6rem);margin-bottom:14px;line-height:1.3}
.split-body p{color:var(--muted);margin-bottom:16px}
.check-list li{
  position:relative;padding-left:24px;margin-bottom:10px;
  font-size:14.5px;color:var(--muted);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;
  width:12px;height:7px;border-left:2px solid var(--clay);border-bottom:2px solid var(--clay);
  transform:rotate(-45deg);
}
.step-index{
  font-family:var(--serif);font-size:14px;color:var(--clay);font-weight:700;letter-spacing:.12em;
  display:block;margin-bottom:10px;
}

/* ---------- 时间线 ---------- */
.timeline-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:48px 44px;box-shadow:var(--sh-1)}
.steps{position:relative}
.steps li{position:relative;display:grid;grid-template-columns:104px minmax(0,1fr);gap:26px;padding-bottom:38px}
.steps li:last-child{padding-bottom:0}
.steps li::before{
  content:"";position:absolute;left:51px;top:58px;bottom:6px;
  border-left:1px dashed var(--line);
}
.steps li:last-child::before{display:none}
.step-no{
  font-family:var(--serif);font-size:38px;font-weight:700;color:var(--clay);line-height:1;
}
.step-body h3{font-size:19px;margin-bottom:8px;font-family:var(--sans);font-weight:600}
.step-body p{margin:0;color:var(--muted);font-size:15px}
.step-body .tag{margin-top:12px}

/* ---------- 清单卡 ---------- */
.prep-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:8px}
.prep-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform .3s ease,box-shadow .3s ease;
}
.prep-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.prep-item .num{font-family:var(--serif);font-size:15px;color:var(--clay);font-weight:700;letter-spacing:.1em}
.prep-item h3{font-size:18px;margin:12px 0 10px;font-family:var(--sans);font-weight:600}
.prep-item p{margin:0;font-size:14px;color:var(--muted);line-height:1.75}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  background:var(--ink);color:#F6F4EF;
  border-radius:16px;padding:56px 52px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:var(--sh-1);
}
.cta-band h2{color:#F6F4EF;font-size:clamp(1.5rem,2.6vw,2.1rem);line-height:1.3;margin-bottom:14px}
.cta-band p{color:rgba(246,244,239,.82);margin:0;max-width:540px;font-size:15.5px}
.cta-actions{display:flex;flex-direction:column;align-items:flex-start;gap:14px;flex:0 0 auto}
.cta-actions .text-link{color:#F6F4EF;box-shadow:inset 0 -1px 0 var(--clay)}
.cta-actions .text-link:hover{color:#fff;box-shadow:inset 0 -2px 0 var(--clay)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(246,244,239,.82);margin-top:96px;padding:72px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(246,244,239,.16)}
.foot-brand-head{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-name{font-family:var(--serif);font-size:18px;font-weight:700;color:#F6F4EF}
.foot-brand p{font-size:14px;line-height:1.8;color:rgba(246,244,239,.7);margin:0;max-width:320px}
.foot-col h4{font-family:var(--sans);font-size:14px;font-weight:600;color:rgba(246,244,239,.55);margin-bottom:16px;letter-spacing:.04em}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:13px;color:rgba(246,244,239,.82)}
.foot-col a:hover{color:var(--clay)}
.foot-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding-top:22px;font-size:12px;color:rgba(246,244,239,.55);
}

/* ---------- 移动端底部 Tab ---------- */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  display:none;background:#fff;border-top:1px solid var(--line);
  height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tab a{
  flex:1;position:relative;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11px;color:var(--muted);
}
.mobile-tab a svg{width:22px;height:22px}
.mobile-tab a.active{color:var(--ink);font-weight:600}
.mobile-tab a.active::after{
  content:"";position:absolute;top:6px;width:4px;height:4px;border-radius:50%;background:var(--clay);
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .42s cubic-bezier(.2,.7,.2,1),transform .42s cubic-bezier(.2,.7,.2,1)}
.reveal.is-in{opacity:1;transform:translateY(0)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .prep-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991px){
  body{padding-bottom:calc(76px + env(safe-area-inset-bottom))}
  .mobile-tab{display:flex}
  .nav-links{display:none}
  .nav-right .btn-main{display:none}
  .wrap{padding:0 24px}
  .section{padding:72px 0}
  .split{grid-template-columns:1fr;gap:28px;padding:40px 0}
  .split.reverse .split-media{order:0}
  .timeline-wrap{padding:34px 26px}
  .steps li{grid-template-columns:66px minmax(0,1fr);gap:18px;padding-bottom:32px}
  .steps li::before{left:32px;top:48px}
  .step-no{font-size:30px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 30px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{margin-top:72px}
}
@media (max-width:575px){
  body{font-size:16px}
  .wrap{padding:0 18px}
  .section{padding:56px 0}
  .prep-grid{grid-template-columns:1fr}
  .page-hero{padding:48px 0 44px}
  .hero-actions{gap:10px}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;justify-content:center}
  .cta-actions{width:100%}
  .cta-actions .btn-paper{width:100%;justify-content:center}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --green:#0F3A34;
  --green-d:#0A2A25;
  --green-l:#1C574C;
  --clay:#C2703D;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --line:#E7E2D8;
  --soft:#EFEBE3;
  --ink:#1A1D1C;
  --ink-2:#5A6763;
  --ink-3:#8A938F;
  --ok:#2E7D6B;
  --warn:#B98A3D;
  --err:#B4453A;
  --r-card:12px;
  --r-btn:4px;
  --r-input:6px;
  --r-img:10px;
  --sh:0 1px 2px rgba(16,32,28,.05);
  --sh-h:0 12px 28px rgba(16,32,28,.09);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;

  --bs-primary:#0F3A34;
  --bs-body-color:#1A1D1C;
  --bs-body-bg:#F6F4EF;
  --bs-border-color:#E7E2D8;
  --bs-border-radius:6px;
  --bs-link-color:#0F3A34;
  --bs-link-hover-color:#1C574C;
  --bs-font-sans-serif:var(--sans);
  --bs-emphasis-color:#0F3A34;
  --bs-secondary-color:#5A6763;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--green);text-decoration:none;transition:color .25s}
a:hover{color:var(--green-l)}
ul,ol{margin:0}
button,input,select,textarea{font:inherit}
:focus-visible{outline:3px solid rgba(15,58,52,.28);outline-offset:2px;border-radius:3px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease;
}
.site-header.scrolled{box-shadow:0 4px 16px rgba(16,32,28,.06)}
.nav-inner{display:flex;align-items:center;gap:28px;height:72px}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--serif);font-size:19px;font-weight:700;
  color:var(--green);letter-spacing:-.01em;white-space:nowrap;
}
.logo:hover{color:var(--green-d)}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:8px;
  background:var(--green);color:#F6F4EF;
  font-family:var(--sans);font-size:13px;font-weight:700;letter-spacing:.02em;
}
.nav-links{display:flex;gap:26px;list-style:none;margin:0;padding:0}
.nav-links a{
  position:relative;display:inline-block;
  padding:6px 0;font-size:15px;color:var(--ink-2);
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--clay);transition:width .3s ease;
}
.nav-links a:hover{color:var(--green)}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:var(--green);font-weight:600}
.nav-links a.active::after{width:100%}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.btn-main{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  background:var(--green);color:#F6F4EF;
  border:1px solid var(--green);
  font-size:15px;font-weight:600;line-height:1.2;
  transition:background .25s,transform .25s,box-shadow .25s,border-color .25s,color .25s;
}
.btn-main:hover{
  background:var(--green-l);border-color:var(--green-l);color:#fff;
  transform:translateY(-1px);box-shadow:var(--sh-h);
}
.btn-main:active{transform:translateY(0);box-shadow:var(--sh)}
.btn-main .arw{transition:transform .25s ease}
.btn-main:hover .arw{transform:translateX(3px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  background:transparent;color:var(--green);
  border:1px solid var(--green);
  font-size:15px;font-weight:600;
  transition:background .25s,color .25s,transform .25s;
}
.btn-ghost:hover{background:var(--soft);color:var(--green-d);transform:translateY(-1px)}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;color:var(--green);transition:border-color .25s,background .25s,color .25s;
}
.icon-btn:hover{border-color:var(--green);background:var(--soft);color:var(--green-d)}

/* ============ 文章首屏 ============ */
.art-hero{position:relative;background:var(--green-d);color:#F6F4EF;padding:52px 0 60px;overflow:hidden}
.art-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
  opacity:.2;
}
.art-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,42,37,.86),rgba(10,42,37,.55));
}
.art-hero .wrap{position:relative;z-index:2}
.crumb{font-size:13px;color:rgba(246,244,239,.72);display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:22px}
.crumb a{color:rgba(246,244,239,.8);border-bottom:1px solid transparent}
.crumb a:hover{color:#fff;border-bottom-color:var(--clay)}
.crumb .sep{color:rgba(246,244,239,.42)}
.crumb .cur{color:rgba(246,244,239,.6);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  font-size:12.5px;line-height:1.5;
  background:rgba(194,112,61,.16);
  border:1px solid rgba(194,112,61,.5);
  color:#F0CFB6;
}
.art-hero h1{
  font-family:var(--serif);
  font-size:clamp(1.9rem,4vw,2.85rem);
  font-weight:700;line-height:1.24;letter-spacing:-.02em;
  margin:18px 0 20px;color:#FBF9F4;max-width:860px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:rgba(246,244,239,.68)}
.meta-row .d{color:rgba(246,244,239,.34)}

/* ============ 正文布局 ============ */
.art-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 296px;
  gap:48px;align-items:start;
  padding-top:56px;padding-bottom:76px;
}
.art-main{min-width:0}
.article-body{max-width:760px;font-size:17px;line-height:1.85;color:var(--ink)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.3em}
.article-body h2{
  font-family:var(--serif);font-size:28px;font-weight:700;line-height:1.4;
  color:var(--green);margin:2.1em 0 .85em;padding-left:14px;
  border-left:4px solid var(--clay);
}
.article-body h3{font-size:20px;font-weight:600;color:var(--green-d);margin:1.9em 0 .7em}
.article-body h4{font-size:17px;font-weight:600;color:var(--green-l);margin:1.6em 0 .6em}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.4em}
.article-body li{margin:.45em 0}
.article-body blockquote{
  margin:1.7em 0;padding:18px 22px;background:var(--soft);
  border-left:3px solid var(--clay);border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--ink-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:1.7em 0}
.article-body figure{margin:1.7em 0}
.article-body figcaption{font-size:13px;color:var(--ink-3);margin-top:8px;text-align:center}
.article-body a{color:var(--green);border-bottom:1px solid var(--clay)}
.article-body a:hover{color:var(--green-l)}
.article-body table{width:100%;border-collapse:collapse;margin:1.7em 0;font-size:15px;background:#fff}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body th{background:var(--soft);font-weight:600;color:var(--green)}
.article-body tr:hover td{background:#FBFAF6}
.article-body hr{border:none;border-top:1px dashed var(--line);margin:2.2em 0}
.article-body code{background:var(--soft);padding:2px 6px;border-radius:4px;font-size:14px}

/* ============ 文末区 ============ */
.art-foot{
  margin-top:52px;padding:24px 26px;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:#fff;display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;
}
.art-foot .src{display:flex;gap:14px;align-items:center;min-width:0}
.art-foot .src-mark{
  flex:0 0 42px;width:42px;height:42px;border-radius:10px;
  background:var(--soft);color:var(--green);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-weight:700;
}
.art-foot .src-t{font-size:14.5px;font-weight:600;color:var(--green-d);margin:0 0 3px}
.art-foot .src-s{font-size:13px;color:var(--ink-3);margin:0}
.link-underline{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--green);
  border-bottom:1px solid var(--clay);padding-bottom:2px;
}
.link-underline:hover{border-bottom-width:2px}
.empty-box{
  max-width:760px;padding:40px 30px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);text-align:center;
}
.empty-box .empty-t{font-size:19px;font-weight:600;color:var(--green);margin:0 0 10px}
.empty-box .empty-s{font-size:14.5px;color:var(--ink-2);margin:0 0 22px}

/* ============ 侧栏 ============ */
.art-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh);
}
.side-panel summary{
  list-style:none;cursor:pointer;font-size:14px;font-weight:600;color:var(--green);
  letter-spacing:.02em;display:flex;align-items:center;justify-content:space-between;
}
.side-panel summary::-webkit-details-marker{display:none}
.side-panel summary::after{
  content:"";width:8px;height:8px;margin-left:8px;
  border-right:1.6px solid var(--clay);border-bottom:1.6px solid var(--clay);
  transform:rotate(45deg);transition:transform .25s;
}
.side-panel[open] summary::after{transform:rotate(-135deg)}
.side-panel summary:hover{color:var(--green-l)}
.side-list{list-style:none;padding:0;margin:16px 0 0}
.side-list li{padding:9px 0;border-top:1px dashed var(--line)}
.side-list li:first-child{border-top:none;padding-top:2px}
.side-list a{font-size:14px;color:var(--ink-2);display:flex;justify-content:space-between;gap:10px}
.side-list a:hover{color:var(--green)}
.side-list a span.arw{color:var(--clay);font-size:13px}
.side-note{font-size:13px;color:var(--ink-3);line-height:1.7;margin:14px 0 0}
.side-cta{background:var(--green);border-color:var(--green);color:#F6F4EF}
.side-cta:hover{background:var(--green)}
.side-cta h3{font-family:var(--serif);font-size:17px;margin:0 0 8px;color:#FBF9F4}
.side-cta p{font-size:13.5px;color:rgba(246,244,239,.76);margin:0 0 16px;line-height:1.7}
.side-cta .btn-main{background:#F6F4EF;color:var(--green);border-color:#F6F4EF;width:100%;justify-content:center}
.side-cta .btn-main:hover{background:#fff;border-color:#fff;color:var(--green-d)}

/* ============ 继续了解 ============ */
.related{background:var(--soft);padding:76px 0;border-top:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.sec-head h2{font-family:var(--serif);font-size:30px;font-weight:700;color:var(--green);margin:0;letter-spacing:-.01em}
.sec-head p{font-size:14.5px;color:var(--ink-2);margin:8px 0 0;max-width:600px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh);transition:transform .35s ease,box-shadow .35s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-h)}
.card-img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
.card:hover .card-img{transform:scale(1.03)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.card-title{font-size:18px;font-weight:600;color:var(--green-d);line-height:1.5;margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-text{font-size:14px;color:var(--ink-2);line-height:1.7;margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;font-size:13px;color:var(--ink-3);display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:13px}
.card-meta .k{color:var(--clay);font-weight:600}

/* ============ 结尾 CTA ============ */
.cta-band{background:var(--green);color:#F6F4EF;padding:64px 0}
.cta-band .inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{font-family:var(--serif);font-size:30px;font-weight:700;margin:0 0 10px;color:#FBF9F4;letter-spacing:-.01em}
.cta-band p{margin:0;font-size:15px;color:rgba(246,244,239,.74);max-width:640px;line-height:1.8}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.cta-band .btn-main{background:#F6F4EF;color:var(--green);border-color:#F6F4EF}
.cta-band .btn-main:hover{background:#fff;border-color:#fff;color:var(--green-d)}
.cta-band .link-underline{color:#F6F4EF;border-bottom-color:var(--clay)}
.cta-band .link-underline:hover{color:#fff}

/* ============ 页脚 ============ */
.site-footer{background:var(--green);color:#F6F4EF;padding:64px 0 28px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.foot-brand-head{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-name{font-family:var(--serif);font-size:18px;font-weight:700;color:#FBF9F4}
.foot-brand p{font-size:13.5px;line-height:1.85;color:rgba(246,244,239,.68);margin:0;max-width:330px}
.foot-col h4{font-size:14px;font-weight:600;color:rgba(246,244,239,.55);margin:0 0 16px;letter-spacing:.04em}
.foot-col ul{list-style:none;padding:0;margin:0}
.foot-col li{margin-bottom:11px}
.foot-col a{font-size:13px;color:rgba(246,244,239,.86)}
.foot-col a:hover{color:var(--clay)}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(246,244,239,.16);
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:12px;color:rgba(246,244,239,.55);
}

/* ============ 移动端底部 Tab ============ */
.mobile-tab{display:none}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .42s cubic-bezier(.2,.7,.2,1),transform .42s cubic-bezier(.2,.7,.2,1)}
.reveal.on{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .art-layout{gap:36px}
}
@media (max-width:991px){
  .wrap{padding:0 24px}
  .nav-links{display:none}
  .nav-inner{height:64px}
  .art-layout{grid-template-columns:1fr;gap:32px;padding-top:40px;padding-bottom:56px}
  .art-side{position:static;order:-1}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
  .art-hero{padding:40px 0 46px}
  .cta-band .inner{flex-direction:column;align-items:flex-start}
  body{padding-bottom:76px}
  .mobile-tab{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:60;
    height:60px;padding-bottom:env(safe-area-inset-bottom);
    background:#fff;border-top:1px solid var(--line);
    box-shadow:0 -2px 12px rgba(16,32,28,.05);
  }
  .mobile-tab a{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
    font-size:11px;color:var(--ink-3);position:relative;padding-top:6px;
  }
  .mobile-tab a svg{width:21px;height:21px}
  .mobile-tab a:hover{color:var(--green)}
  .mobile-tab a.active{color:var(--green);font-weight:600}
  .mobile-tab a.active::after{
    content:"";position:absolute;bottom:5px;left:50%;transform:translateX(-50%);
    width:4px;height:4px;border-radius:999px;background:var(--clay);
  }
}
@media (max-width:767px){
  .wrap{padding:0 20px}
  .related{padding:56px 0}
  .related-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .sec-head h2{font-size:25px}
  .cta-band h2{font-size:25px}
  .art-foot{flex-direction:column;align-items:flex-start}
  .side-cta .btn-main{width:100%}
}
@media (max-width:575px){
  .wrap{padding:0 18px}
  .art-hero{padding:32px 0 38px}
  .art-hero h1{font-size:1.65rem}
  .btn-main,.btn-ghost{padding:11px 18px;font-size:14.5px}
  .article-body{font-size:16px}
  .article-body h2{font-size:23px}
  .cta-actions{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;justify-content:center}
  .nav-right .btn-main.btn-sm{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#0F3A34;
  --ink-deep:#0A2A25;
  --ink-light:#1C574C;
  --clay:#C2703D;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --line:#E7E2D8;
  --soft:#EFEBE3;
  --text:#1A1D1C;
  --muted:#5A6763;
  --dim:#8A938F;
  --ok:#2E7D6B;
  --warn:#B98A3D;
  --err:#B4453A;
  --r-card:12px;
  --r-btn:4px;
  --r-input:6px;
  --r-img:10px;
  --sh-1:0 1px 2px rgba(16,32,28,.05);
  --sh-2:0 12px 28px rgba(16,32,28,.09);
  --font-title:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-body:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
  --bs-primary:#0F3A34;
  --bs-body-color:#1A1D1C;
  --bs-border-color:#E7E2D8;
  --bs-border-radius:6px;
  --bs-body-font-family:var(--font-body);
  --bs-link-color:#0F3A34;
  --bs-link-hover-color:#1C574C;
  --bs-body-bg:#F6F4EF;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--ink);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--ink-light)}
h1,h2,h3,h4{font-family:var(--font-title);font-weight:700;color:var(--ink-deep);margin:0}
p{margin:0 0 1.1em}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.wrap{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
.section{padding:104px 0}
.section.tight{padding:80px 0}
.sec-soft{background:var(--soft)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head h2{font-size:clamp(1.7rem,3vw,2.5rem);line-height:1.25;letter-spacing:-.01em}
.sec-head p{margin:14px 0 0;color:var(--muted);font-size:15.5px;line-height:1.8}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.14em;color:var(--clay);
  border:1px solid var(--line);border-radius:999px;padding:4px 12px;background:var(--card);
  margin-bottom:16px;font-family:var(--font-body);font-weight:600;
}
/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:var(--paper);
  border-bottom:1px solid var(--line);transition:box-shadow .3s ease;
}
.site-header.scrolled{box-shadow:0 4px 16px rgba(16,32,28,.06)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--font-title);font-weight:700;font-size:19px;color:var(--ink-deep);letter-spacing:-.01em}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:8px;background:var(--ink);color:#F6F4EF;
  font-family:var(--font-body);font-size:14px;font-weight:700;letter-spacing:.02em;flex:0 0 auto;
}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  position:relative;display:inline-block;padding:8px 14px;font-size:15px;color:var(--muted);border-radius:var(--r-btn);
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;background:var(--clay);
  transform:scaleX(0);transform-origin:left;transition:transform .3s cubic-bezier(.2,.7,.2,1);
}
.nav-links a:hover{color:var(--ink);background:var(--soft)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink);font-weight:600}
.nav-right{display:flex;align-items:center;gap:12px}
/* ---------- buttons ---------- */
.btn-main{
  display:inline-flex;align-items:center;gap:8px;background:var(--ink);color:#F6F4EF;
  border:1px solid var(--ink);border-radius:var(--r-btn);padding:12px 22px;font-size:15px;font-weight:600;
  transition:background .25s ease,transform .25s ease,box-shadow .25s ease;cursor:pointer;
}
.btn-main:hover{background:var(--ink-light);border-color:var(--ink-light);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-main:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-main .arw{transition:transform .25s ease;display:inline-block}
.btn-main:hover .arw{transform:translateX(3px)}
.btn-main.btn-sm{padding:9px 16px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;background:transparent;color:var(--ink);
  border:1px solid var(--ink);border-radius:var(--r-btn);padding:12px 22px;font-size:15px;font-weight:600;
  transition:background .25s ease,transform .25s ease;
}
.btn-ghost:hover{background:var(--soft);color:var(--ink-deep);transform:translateY(-1px)}
.text-link{
  color:var(--ink);font-weight:600;border-bottom:1px solid var(--clay);padding-bottom:2px;
  transition:border-width .2s ease,color .2s ease;
}
.text-link:hover{border-bottom-width:2px;color:var(--ink-light)}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;
  border:1px solid var(--line);border-radius:var(--r-btn);color:var(--ink);background:var(--card);
  transition:background .25s ease,border-color .25s ease;
}
.icon-btn:hover{background:var(--soft);border-color:var(--ink)}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:3px solid rgba(15,58,52,.28);outline-offset:2px;
}
/* ---------- page hero ---------- */
.page-hero{
  position:relative;background-color:var(--ink-deep);
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;color:#F6F4EF;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,42,37,.92),rgba(10,42,37,.72) 55%,rgba(10,42,37,.5));
}
.page-hero .wrap{position:relative;z-index:2;padding-top:60px;padding-bottom:64px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(246,244,239,.72);margin-bottom:22px}
.crumb a{color:rgba(246,244,239,.86)}
.crumb a:hover{color:#fff}
.crumb .sep{color:var(--clay)}
.crumb .now{color:#F6F4EF}
.page-hero h1{
  color:#F6F4EF;font-size:clamp(1.9rem,4.4vw,3.1rem);line-height:1.18;letter-spacing:-.02em;
  max-width:820px;margin-bottom:18px;
}
.hero-lead{max-width:680px;color:rgba(246,244,239,.85);font-size:16.5px;line-height:1.8;margin:0}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;padding:5px 13px;border-radius:999px;
  background:rgba(246,244,239,.1);border:1px solid rgba(246,244,239,.3);color:#F6F4EF;
}
/* ---------- split layout ---------- */
.split{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:52px;align-items:start}
.cards-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.mini-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;
  box-shadow:var(--sh-1);transition:transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s ease;height:100%;
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.mini-card .ico{
  width:40px;height:40px;border-radius:10px;background:var(--soft);color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.mini-card h3{font-size:18px;line-height:1.45;margin-bottom:10px}
.mini-card p{font-size:14.5px;line-height:1.8;color:var(--muted);margin:0}
.fig-block{margin:0 0 34px}
.fig-block img{width:100%;aspect-ratio:16/10;object-fit:cover;border:1px solid var(--line)}
.fig-block figcaption{font-size:13px;color:var(--dim);margin-top:10px}
/* ---------- sticky checklist ---------- */
.aside-card{
  position:sticky;top:96px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);
}
.aside-card .aside-title{
  font-family:var(--font-title);font-size:18px;font-weight:700;color:var(--ink-deep);margin-bottom:6px;
}
.aside-card .aside-sub{font-size:13px;color:var(--dim);margin-bottom:18px}
.check-list li{
  display:flex;gap:11px;align-items:flex-start;padding:11px 0;border-bottom:1px dashed var(--line);
  font-size:14.5px;line-height:1.7;color:var(--muted);
}
.check-list li:last-child{border-bottom:0}
.check-list .box{
  flex:0 0 auto;width:18px;height:18px;border:1px solid var(--ink);border-radius:4px;margin-top:5px;
  display:inline-flex;align-items:center;justify-content:center;font-size:11px;color:var(--ink);
}
.aside-card .aside-foot{margin-top:20px;padding-top:18px;border-top:1px solid var(--line);font-size:13.5px;color:var(--muted)}
/* ---------- compare bars ---------- */
.cmp-list{display:flex;flex-direction:column;gap:18px;margin-top:8px}
.cmp-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--sh-1);
}
.cmp-topic{font-size:15px;font-weight:600;color:var(--ink-deep);margin-bottom:14px;display:flex;align-items:center;gap:10px}
.cmp-topic::before{content:"";width:3px;height:16px;background:var(--clay);border-radius:2px;display:inline-block}
.cmp-row{display:grid;grid-template-columns:1fr 34px 1fr;align-items:stretch;gap:0}
.cmp-cell{padding:14px 16px;border-radius:8px;font-size:14.5px;line-height:1.75}
.cmp-cell.risk{background:#FBEFED;color:#8B3A31;border:1px solid #F0D9D5}
.cmp-cell.safe{background:#EAF3F0;color:#1F5F51;border:1px solid #D5E7E1}
.cmp-cell .tag{
  display:inline-block;font-size:11.5px;letter-spacing:.08em;font-weight:700;margin-bottom:6px;
}
.cmp-cell.risk .tag{color:var(--err)}
.cmp-cell.safe .tag{color:var(--ok)}
.cmp-arrow{display:flex;align-items:center;justify-content:center;color:var(--dim);font-size:18px}
/* ---------- timeline ---------- */
.timeline{margin-top:12px;position:relative}
.tl-item{
  display:grid;grid-template-columns:104px minmax(0,1fr);gap:26px;padding:26px 0;position:relative;
}
.tl-item::after{
  content:"";position:absolute;left:51px;top:76px;bottom:-6px;border-left:1px dashed var(--line);
}
.tl-item:last-child::after{display:none}
.tl-num{
  font-family:var(--font-title);font-size:40px;font-weight:700;color:var(--clay);line-height:1;
  text-align:center;
}
.tl-body h3{font-size:19px;margin-bottom:8px}
.tl-body p{margin:0;color:var(--muted);font-size:15px;line-height:1.8}
.tl-body .tl-tag{
  display:inline-block;margin-top:12px;font-size:12.5px;color:var(--ink);
  border:1px solid var(--line);background:var(--card);border-radius:999px;padding:3px 12px;
}
/* ---------- FAQ ---------- */
.faq-acc .accordion-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card) !important;margin-bottom:14px;overflow:hidden;
}
.faq-acc .accordion-button{
  background:var(--card);color:var(--ink-deep);font-family:var(--font-title);font-size:17px;font-weight:600;
  padding:20px 22px 20px 22px;box-shadow:none !important;border-radius:var(--r-card) !important;position:relative;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--ink)}
.faq-acc .accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--clay);border-radius:2px;
  opacity:0;transition:opacity .25s ease;
}
.faq-acc .accordion-button:not(.collapsed)::before{opacity:1}
.faq-acc .accordion-button::after{
  background-image:none !important;content:"+";font-family:var(--font-body);font-size:22px;font-weight:400;
  color:var(--clay);width:24px;height:24px;display:flex;align-items:center;justify-content:center;
  transform:none !important;line-height:1;
}
.faq-acc .accordion-button:not(.collapsed)::after{content:"−";color:var(--ink)}
.faq-acc .accordion-button:focus{box-shadow:none !important}
.faq-acc .accordion-body{padding:0 22px 22px;color:var(--muted);font-size:15px;line-height:1.85;border-top:1px solid var(--line);padding-top:16px}
/* ---------- CTA band ---------- */
.cta-band{
  background:var(--ink);color:#F6F4EF;border-radius:0;padding:72px 0;
}
.cta-band h2{color:#F6F4EF;font-size:clamp(1.6rem,2.8vw,2.2rem);line-height:1.3;margin-bottom:14px}
.cta-band p{color:rgba(246,244,239,.8);max-width:640px;margin-bottom:28px}
.cta-band .btn-main{background:#F6F4EF;color:var(--ink);border-color:#F6F4EF}
.cta-band .btn-main:hover{background:#fff;color:var(--ink-deep);border-color:#fff}
.cta-band .text-link{color:#F6F4EF;border-bottom-color:var(--clay)}
.cta-band .text-link:hover{color:#fff}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:22px}
/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(246,244,239,.78);padding:72px 0 26px;font-size:13.5px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:42px;border-bottom:1px solid rgba(246,244,239,.16)}
.foot-brand-head{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-name{font-family:var(--font-title);font-size:18px;font-weight:700;color:#F6F4EF}
.foot-brand p{color:rgba(246,244,239,.66);line-height:1.8;max-width:320px;margin:0}
.foot-col h4{font-family:var(--font-body);font-size:14px;color:rgba(246,244,239,.6);font-weight:600;margin-bottom:16px;letter-spacing:.02em}
.foot-col li{margin-bottom:11px}
.foot-col a{color:rgba(246,244,239,.8);font-size:13.5px}
.foot-col a:hover{color:var(--clay)}
.foot-bottom{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;padding-top:22px;font-size:12px;color:rgba(246,244,239,.56)}
/* ---------- mobile tabs ---------- */
.mobile-tabs{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:1040;background:var(--paper);
  border-top:1px solid var(--line);height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tabs ul{display:flex;height:60px}
.mobile-tabs li{flex:1}
.mobile-tabs a{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;height:100%;
  font-size:11.5px;color:var(--dim);position:relative;
}
.mobile-tabs a svg{stroke:currentColor}
.mobile-tabs a.active{color:var(--ink);font-weight:700}
.mobile-tabs a.active::before{
  content:"";position:absolute;top:6px;width:4px;height:4px;border-radius:50%;background:var(--clay);
}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .42s cubic-bezier(.2,.7,.2,1),transform .42s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
@media (max-width:1199px){
  .split{grid-template-columns:minmax(0,1fr) 290px;gap:38px}
}
@media (max-width:991px){
  body{padding-bottom:76px;font-size:16px}
  .wrap{padding:0 24px}
  .section{padding:72px 0}
  .section.tight{padding:60px 0}
  .nav-links{display:none}
  .split{grid-template-columns:minmax(0,1fr);gap:34px}
  .aside-card{position:static}
  .cards-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .mobile-tabs{display:block}
  .page-hero .wrap{padding-top:46px;padding-bottom:50px}
}
@media (max-width:767px){
  .foot-grid{grid-template-columns:1fr}
  .tl-item{grid-template-columns:64px minmax(0,1fr);gap:18px}
  .tl-num{font-size:30px}
  .tl-item::after{left:31px;top:60px}
  .cmp-row{grid-template-columns:1fr;gap:10px}
  .cmp-arrow{justify-content:flex-start;padding-left:4px;transform:rotate(90deg)}
}
@media (max-width:575px){
  .wrap{padding:0 18px}
  .section{padding:56px 0}
  .cards-3{grid-template-columns:minmax(0,1fr)}
  .page-hero h1{font-size:1.75rem}
  .cta-band{padding:54px 0}
  .cta-actions{gap:16px}
  .btn-main,.btn-ghost{width:100%;justify-content:center}
  .nav-right .btn-main{width:auto}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --green:#0F3A34; --green-d:#0A2A25; --green-l:#1C574C;
  --clay:#C2703D; --clay-soft:#F3E4D8; --clay-ink:#7A4423;
  --bg:#F6F4EF; --card:#FFFFFF; --line:#E7E2D8; --soft:#EFEBE3;
  --ink:#1A1D1C; --ink-2:#5A6763; --ink-3:#8A938F;
  --ok:#2E7D6B; --warn:#B98A3D; --err:#B4453A;
  --r-card:12px; --r-btn:4px; --r-input:6px; --r-img:10px;
  --sh:0 1px 2px rgba(16,32,28,.05);
  --sh-h:0 12px 28px rgba(16,32,28,.09);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --bs-primary:#0F3A34; --bs-body-color:#1A1D1C; --bs-body-bg:#F6F4EF;
  --bs-border-color:#E7E2D8; --bs-border-radius:12px; --bs-link-color:#0F3A34;
  --bs-link-hover-color:#1C574C; --bs-font-sans-serif:var(--sans);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);
  font-size:17px;line-height:1.85;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--green);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--green-l)}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);letter-spacing:-.01em;margin:0}
p{margin:0 0 1em}
ul{margin:0;padding:0}
::selection{background:rgba(194,112,61,.22)}
:focus-visible{outline:3px solid rgba(15,58,52,.28);outline-offset:2px;border-radius:4px}

.wrap{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.eyebrow{font-size:13px;letter-spacing:.14em;color:var(--clay);font-weight:600;text-transform:uppercase;margin-bottom:14px}
.sec-title{font-size:40px;font-weight:700;line-height:1.22;margin-bottom:16px}
.sec-desc{color:var(--ink-2);font-size:16px;max-width:760px}
.hr-line{height:1px;background:var(--line);border:0;margin:0}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:70;background:var(--bg);
  border-bottom:1px solid var(--line);transition:box-shadow .28s ease;
}
.site-header.scrolled{box-shadow:0 4px 16px rgba(16,32,28,.06)}
.nav-inner{display:flex;align-items:center;gap:34px;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:700;
  font-size:19px;color:var(--green);letter-spacing:-.01em;flex:0 0 auto}
.logo:hover{color:var(--green-d)}
.logo-mark{
  display:grid;place-items:center;width:34px;height:34px;background:var(--green);
  color:#F6F4EF;border-radius:8px;font-family:var(--sans);font-size:13px;
  font-weight:700;letter-spacing:.02em;flex:0 0 auto;
}
.nav-links{display:flex;gap:26px;list-style:none;margin:0;padding:0}
.nav-links a{position:relative;font-size:15px;color:var(--ink-2);padding:6px 0;display:inline-block}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--clay);transition:width .28s cubic-bezier(.2,.7,.2,1)}
.nav-links a:hover{color:var(--green)}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:var(--green);font-weight:600}
.nav-links a.active::after{width:100%}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.icon-btn{
  width:38px;height:38px;border:1px solid var(--line);border-radius:999px;background:#fff;
  display:grid;place-items:center;color:var(--green-l);transition:.22s ease;
}
.icon-btn:hover{border-color:var(--green);color:var(--green);background:var(--soft)}
.btn-main{
  display:inline-flex;align-items:center;gap:8px;background:var(--green);color:#F6F4EF;
  border:1px solid var(--green);border-radius:var(--r-btn);padding:12px 22px;
  font-size:15px;font-weight:600;line-height:1.2;white-space:nowrap;
  transition:all .22s cubic-bezier(.2,.7,.2,1);
}
.btn-main:hover{background:var(--green-l);border-color:var(--green-l);color:#fff;
  transform:translateY(-1px);box-shadow:0 10px 22px rgba(16,32,28,.14)}
.btn-main:hover .arw{transform:translateX(3px)}
.btn-main:active{transform:translateY(0);box-shadow:none}
.btn-sm{padding:9px 16px;font-size:14px}
.arw{display:inline-block;transition:transform .22s ease}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;background:transparent;color:var(--green);
  border:1px solid var(--green);border-radius:var(--r-btn);padding:12px 22px;
  font-size:15px;font-weight:600;line-height:1.2;white-space:nowrap;transition:.22s ease;
}
.btn-ghost:hover{background:var(--soft);color:var(--green-d)}
.btn-ghost:hover .arw{transform:translateX(3px)}
.link-underline{color:var(--green);font-weight:600;border-bottom:1px solid var(--clay);padding-bottom:2px}
.link-underline:hover{border-bottom-width:2px;color:var(--green-l)}

/* ============ 移动端底部 Tab ============ */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;display:none;
  background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  grid-template-columns:repeat(5,1fr);height:60px;
}
.mobile-tabbar a{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  font-size:11px;color:var(--ink-3);position:relative;line-height:1.2;text-align:center;
}
.mobile-tabbar a svg{width:22px;height:22px}
.mobile-tabbar a.active{color:var(--green);font-weight:700}
.mobile-tabbar a.active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--clay);
}

/* ============ 页面首屏 ============ */
.page-hero{
  position:relative;color:#F6F4EF;padding:68px 0 88px;
  background:
    linear-gradient(180deg,rgba(10,42,37,.86) 0%,rgba(15,58,52,.76) 60%,rgba(15,58,52,.9) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.page-hero .wrap{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;margin-bottom:22px;color:rgba(246,244,239,.66)}
.crumbs a{color:rgba(246,244,239,.82)}
.crumbs a:hover{color:#fff}
.crumbs .sep{opacity:.5}
.crumbs .cur{color:rgba(246,244,239,.6)}
.page-hero h1{
  color:#F6F4EF;font-size:clamp(2rem,4.2vw,3.1rem);line-height:1.18;font-weight:700;
  letter-spacing:-.02em;max-width:900px;margin-bottom:20px;
}
.hero-sub{font-size:17px;line-height:1.8;color:rgba(246,244,239,.82);max-width:660px;margin:0}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;line-height:1;
  padding:8px 14px;border-radius:999px;background:rgba(246,244,239,.12);
  border:1px solid rgba(246,244,239,.28);color:#F6F4EF;
}
.badge-soft b{font-weight:700;color:#fff}

/* ============ 搜索面板 ============ */
.search-panel{
  position:relative;z-index:10;margin-top:-52px;background:#fff;border:1px solid var(--line);
  border-radius:14px;box-shadow:var(--sh-h);padding:24px 26px;
}
.search-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px;margin-bottom:16px}
.search-head h2{font-size:20px;font-weight:700}
.search-head span{font-size:13.5px;color:var(--ink-3)}
.search-row{display:flex;gap:12px}
.search-input{
  flex:1 1 auto;min-width:0;height:50px;border:1px solid var(--line);border-radius:var(--r-input);
  background:#FDFCFA;padding:0 16px;font-size:15px;color:var(--ink);font-family:var(--sans);
  transition:.2s ease;
}
.search-input::placeholder{color:var(--ink-3)}
.search-input:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(15,58,52,.14);background:#fff}
.search-btn{
  flex:0 0 auto;border:1px solid var(--green);background:var(--green);color:#F6F4EF;
  border-radius:var(--r-btn);padding:0 26px;font-size:15px;font-weight:600;height:50px;
  transition:.22s ease;
}
.search-btn:hover{background:var(--green-l);border-color:var(--green-l)}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;align-items:center}
.chip-label{font-size:13px;color:var(--ink-3);margin-right:2px}
.chip{
  display:inline-flex;align-items:center;border:1px solid var(--line);background:#fff;
  color:var(--green);font-size:13px;padding:6px 14px;border-radius:999px;cursor:pointer;
  transition:.2s ease;line-height:1.4;
}
.chip:hover{background:var(--soft);border-color:var(--green-l)}
.chip.clay{background:var(--clay-soft);border-color:transparent;color:var(--clay-ink)}
.search-hint{margin:14px 0 0;font-size:13.5px;color:var(--ink-2);display:none}
.search-hint.show{display:block}

/* ============ 问答布局 ============ */
.qa-layout{display:grid;grid-template-columns:252px 1fr;gap:44px;align-items:start}
.anchor-nav{
  position:sticky;top:96px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:20px 18px;box-shadow:var(--sh);
}
.anchor-nav h2{font-size:13px;letter-spacing:.1em;color:var(--ink-3);font-weight:600;margin-bottom:14px}
.anchor-list{list-style:none}
.anchor-list li+li{margin-top:2px}
.anchor-list a{
  display:block;padding:9px 0 9px 14px;border-left:2px solid var(--line);
  font-size:14px;color:var(--ink-2);transition:.2s ease;line-height:1.5;
}
.anchor-list a:hover{color:var(--green);border-left-color:var(--green-l);background:#FBFAF7}
.anchor-list a.on{color:var(--green);font-weight:600;border-left-color:var(--clay);background:#FBF9F5}
.anchor-foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);line-height:1.7}
.anchor-foot a{color:var(--green);font-weight:600}

.qa-group{margin-bottom:44px;scroll-margin-top:104px}
.qa-group:last-child{margin-bottom:0}
.qa-group-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.qa-group-num{
  display:grid;place-items:center;width:30px;height:30px;border-radius:8px;flex:0 0 auto;
  background:var(--clay-soft);color:var(--clay-ink);font-size:13px;font-weight:700;font-family:var(--sans);
}
.qa-group-head h2{font-size:23px;font-weight:700}
.qa-count{margin-left:auto;font-size:12.5px;color:var(--ink-3);border:1px solid var(--line);
  border-radius:999px;padding:3px 11px;line-height:1.5;background:#fff}

/* ============ 手风琴 ============ */
.accordion{
  --bs-accordion-border-color:var(--line);
  --bs-accordion-border-radius:var(--r-card);
  --bs-accordion-btn-color:var(--ink);
  --bs-accordion-btn-bg:#fff;
  --bs-accordion-active-color:var(--green);
  --bs-accordion-active-bg:#FBF9F5;
  --bs-accordion-btn-focus-box-shadow:none;
  --bs-accordion-body-bg:#fff;
  --bs-accordion-inner-border-radius:var(--r-card);
}
.accordion-item{
  border:1px solid var(--line)!important;border-radius:var(--r-card)!important;
  overflow:hidden;background:#fff;margin-bottom:14px;transition:box-shadow .24s ease,border-color .24s ease;
}
.accordion-item:hover{border-color:#D9D2C4!important;box-shadow:var(--sh-h)}
.accordion-button{
  font-size:17px;font-weight:600;font-family:var(--sans);line-height:1.6;
  padding:20px 58px 20px 22px;box-shadow:none!important;position:relative;color:var(--ink);
}
.accordion-button:not(.collapsed){
  color:var(--green);background:#FBF9F5;box-shadow:none!important;
}
.accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:var(--clay);border-radius:0 3px 3px 0;
}
.accordion-button::after{display:none}
.qmark{
  position:absolute;right:18px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border:1px solid var(--line);border-radius:50%;
  display:grid;place-items:center;font-size:16px;font-weight:500;color:var(--green-l);
  background:#fff;transition:.22s ease;font-family:var(--sans);
}
.qmark::before{content:"+"}
.accordion-button:not(.collapsed) .qmark{background:var(--green);border-color:var(--green);color:#F6F4EF}
.accordion-button:not(.collapsed) .qmark::before{content:"−"}
.accordion-button:hover{background:#FBFAF7}
.accordion-body{padding:4px 22px 24px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.accordion-body p:last-child{margin-bottom:0}
.accordion-body ul{list-style:none;margin:12px 0 0}
.accordion-body li{position:relative;padding-left:18px;margin-bottom:8px;line-height:1.8}
.accordion-body li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--clay);opacity:.75;
}
.accordion-body strong{color:var(--ink);font-weight:600}
.answer-tip{
  margin-top:14px;background:var(--soft);border-left:3px solid var(--green-l);
  border-radius:0 8px 8px 0;padding:12px 16px;font-size:14px;color:var(--ink-2);
}
.no-result{
  display:none;border:1px dashed var(--line);border-radius:var(--r-card);
  padding:36px 24px;text-align:center;background:#fff;
}
.no-result.show{display:block}
.no-result p{color:var(--ink-2);font-size:15px;margin-bottom:14px}

/* ============ 自查图文区 ============ */
.self-check{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.self-grid{display:grid;grid-template-columns:1.02fr 1fr;gap:56px;align-items:center}
.self-figure{position:relative}
.self-figure img{width:100%;height:420px;object-fit:cover;border-radius:var(--r-img)}
.self-tag{
  position:absolute;left:20px;bottom:20px;background:rgba(15,58,52,.92);color:#F6F4EF;
  font-size:13px;padding:8px 16px;border-radius:999px;
}
.step-list{list-style:none;counter-reset:s}
.step-list li{
  position:relative;padding:0 0 26px 56px;counter-increment:s;
}
.step-list li:last-child{padding-bottom:0}
.step-list li::before{
  content:counter(s,decimal-leading-zero);
  position:absolute;left:0;top:2px;font-family:var(--serif);font-size:22px;font-weight:700;
  color:var(--clay);letter-spacing:-.02em;
}
.step-list li::after{
  content:"";position:absolute;left:15px;top:38px;bottom:2px;width:1px;
  border-left:1px dashed var(--line);
}
.step-list li:last-child::after{display:none}
.step-list h3{font-size:18px;font-weight:600;margin-bottom:6px;font-family:var(--sans)}
.step-list p{margin:0;font-size:15px;color:var(--ink-2);line-height:1.8}

/* ============ 入口卡 ============ */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:36px}
.entry-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh);transition:.26s cubic-bezier(.2,.7,.2,1);
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-h);border-color:#D9D2C4}
.entry-card h3{font-size:18px;font-weight:600;margin-bottom:8px;font-family:var(--sans)}
.entry-card p{font-size:14px;color:var(--ink-2);line-height:1.75;margin:0 0 16px}
.entry-card .go{font-size:14px;font-weight:600;color:var(--green);display:inline-flex;align-items:center;gap:6px}
.entry-card:hover .go .arw{transform:translateX(3px)}

/* ============ CTA 条 ============ */
.cta-band{background:var(--green);color:#F6F4EF}
.cta-band .wrap{padding-top:64px;padding-bottom:64px;display:flex;flex-wrap:wrap;align-items:center;gap:36px}
.cta-band h2{color:#F6F4EF;font-size:32px;font-weight:700;line-height:1.3;max-width:620px}
.cta-band p{color:rgba(246,244,239,.76);margin:12px 0 0;font-size:15.5px;max-width:600px}
.cta-actions{margin-left:auto;display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.btn-main.on-dark{background:#F6F4EF;border-color:#F6F4EF;color:var(--green)}
.btn-main.on-dark:hover{background:#fff;border-color:#fff;color:var(--green-d)}
.cta-band .link-light{color:#F6F4EF;font-size:15px;font-weight:600;border-bottom:1px solid rgba(246,244,239,.5);padding-bottom:2px}
.cta-band .link-light:hover{border-bottom-color:#F6F4EF}

/* ============ 页脚 ============ */
.site-footer{background:var(--green);color:#EDE9E0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding:64px 0 44px}
.foot-brand-head{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-name{font-family:var(--serif);font-size:19px;font-weight:700;color:#F6F4EF}
.site-footer .logo-mark{background:#F6F4EF;color:var(--green)}
.foot-brand p{font-size:14px;line-height:1.8;color:rgba(237,233,224,.7);max-width:340px;margin:0}
.foot-col h4{font-size:14px;font-weight:600;color:rgba(237,233,224,.55);margin-bottom:16px;letter-spacing:.04em}
.foot-col ul{list-style:none}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:13.5px;color:rgba(237,233,224,.85);line-height:1.7}
.foot-col a:hover{color:var(--clay)}
.foot-bottom{
  border-top:1px solid rgba(237,233,224,.16);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12px;color:rgba(237,233,224,.6);
}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .42s cubic-bezier(.2,.7,.2,1),transform .42s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .qa-layout{grid-template-columns:216px 1fr;gap:32px}
  .self-grid{gap:40px}
}
@media (max-width:991px){
  body{padding-bottom:76px}
  .wrap{padding:0 24px}
  .section{padding:72px 0}
  .sec-title{font-size:32px}
  .nav-links{display:none}
  .nav-right .icon-btn{display:none}
  .mobile-tabbar{display:grid}
  .page-hero{padding:48px 0 84px}
  .search-panel{margin-top:-48px;padding:20px}
  .qa-layout{grid-template-columns:1fr;gap:26px}
  .anchor-nav{position:static;padding:16px}
  .anchor-nav h2{margin-bottom:12px}
  .anchor-list{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;-webkit-overflow-scrolling:touch}
  .anchor-list li+li{margin-top:0}
  .anchor-list a{
    border-left:0;border:1px solid var(--line);border-radius:999px;
    padding:7px 14px;white-space:nowrap;font-size:13.5px;
  }
  .anchor-list a.on{background:var(--green);color:#F6F4EF;border-color:var(--green)}
  .anchor-foot{display:none}
  .self-grid{grid-template-columns:1fr;gap:32px}
  .self-figure img{height:320px}
  .entry-grid{grid-template-columns:1fr;gap:16px}
  .cta-band .wrap{padding-top:52px;padding-bottom:52px;gap:24px}
  .cta-band h2{font-size:26px}
  .cta-actions{margin-left:0;width:100%}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 36px}
  .foot-brand{grid-column:1 / -1}
}
@media (max-width:767px){
  .search-row{flex-direction:column}
  .search-btn{width:100%;height:46px}
  .accordion-button{font-size:16px;padding:18px 52px 18px 18px}
  .accordion-body{padding:2px 18px 20px}
  .sec-title{font-size:28px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:520px){
  .wrap{padding:0 18px}
  .logo span:last-child{font-size:17px}
  .nav-inner{gap:16px}
  .page-hero h1{font-size:1.72rem}
  .hero-sub{font-size:15.5px}
  .qa-group-head h2{font-size:20px}
  .qa-count{display:none}
  .self-figure img{height:240px}
  .cta-band h2{font-size:23px}
  .btn-main,.btn-ghost{padding:11px 18px;font-size:14.5px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;
    transition-duration:.001ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category4 */
:root{
  --ink:#0F3A34;
  --ink-dark:#0A2A25;
  --ink-light:#1C574C;
  --clay:#C2703D;
  --paper:#F6F4EF;
  --white:#FFFFFF;
  --line:#E7E2D8;
  --soft:#EFEBE3;
  --text:#1A1D1C;
  --text-2:#5A6763;
  --text-3:#8A938F;
  --ok:#2E7D6B;
  --warn:#B98A3D;
  --err:#B4453A;
  --r-card:12px;
  --r-btn:4px;
  --r-input:6px;
  --r-img:10px;
  --sh:0 1px 2px rgba(16,32,28,.05);
  --sh-hov:0 12px 28px rgba(16,32,28,.09);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --bs-primary:#0F3A34;
  --bs-body-color:#1A1D1C;
  --bs-body-bg:#F6F4EF;
  --bs-border-color:#E7E2D8;
  --bs-border-radius:12px;
  --bs-font-sans-serif:var(--sans);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--ink-light)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
ul,ol{margin:0}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);margin:0;letter-spacing:-.01em}
:focus-visible{outline:3px solid rgba(15,58,52,.28);outline-offset:2px;border-radius:4px}
.wrap{max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--clay);font-weight:600;letter-spacing:.06em;
  margin-bottom:14px;
}
.sec-tag::before{content:"";width:22px;height:2px;background:var(--clay);display:inline-block}
.sec-head h2{font-size:clamp(1.55rem,2.8vw,2.3rem);line-height:1.28;font-weight:700;margin-bottom:16px}
.sec-head p{color:var(--text-2);font-size:16px;line-height:1.85;margin:0}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(16,32,28,.06)}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{
  display:flex;align-items:center;gap:10px;
  font-family:var(--serif);font-weight:700;font-size:19px;color:var(--ink);
  letter-spacing:-.01em;white-space:nowrap;
}
.logo:hover{color:var(--ink)}
.logo-mark{
  width:34px;height:34px;border-radius:6px;background:var(--ink);color:#fff;
  display:grid;place-items:center;font-size:12.5px;font-weight:700;
  font-family:var(--sans);letter-spacing:.02em;flex:0 0 auto;
}
.nav-links{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0}
.nav-links a{
  position:relative;display:block;padding:8px 14px;font-size:15px;
  color:var(--text-2);border-radius:4px;
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--clay);transform:scaleX(0);transform-origin:left;
  transition:transform .3s cubic-bezier(.2,.7,.2,1);
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink);font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.btn-main{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--ink);color:#fff;border:1px solid var(--ink);
  border-radius:var(--r-btn);padding:13px 24px;font-size:15px;font-weight:600;
  cursor:pointer;transition:background .25s,transform .25s,box-shadow .25s,border-color .25s;
}
.btn-main:hover{background:var(--ink-light);border-color:var(--ink-light);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-hov)}
.btn-main:hover .arw{transform:translateX(3px)}
.btn-main:active{transform:translateY(0);box-shadow:var(--sh)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;color:var(--ink);border:1px solid var(--ink);
  border-radius:var(--r-btn);padding:12px 22px;font-size:15px;font-weight:600;
  transition:background .25s,transform .25s;
}
.btn-ghost:hover{background:var(--soft);color:var(--ink);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.arw{transition:transform .25s ease;display:inline-block}
.text-link{
  color:var(--ink);font-weight:600;font-size:15px;
  border-bottom:1px solid var(--clay);padding-bottom:2px;transition:border-width .2s,border-color .2s;
}
.text-link:hover{border-bottom-width:2px;color:var(--ink-light)}
.icon-btn{
  width:38px;height:38px;display:grid;place-items:center;
  border:1px solid var(--line);border-radius:var(--r-btn);
  color:var(--ink);background:#fff;transition:background .25s,border-color .25s;
}
.icon-btn:hover{background:var(--soft);border-color:var(--ink);color:var(--ink)}

/* ============ 移动底部 Tab ============ */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:#fff;border-top:1px solid var(--line);
  display:none;
  box-shadow:0 -2px 12px rgba(16,32,28,.05);
}
.tabbar a{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:2px;font-size:11px;color:var(--text-3);position:relative;
}
.tabbar a svg{width:22px;height:22px}
.tabbar a.active{color:var(--ink);font-weight:600}
.tabbar a.active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:3px;border-radius:0 0 3px 3px;background:var(--clay);
}

/* ============ 内页 Hero ============ */
.hero-inner{
  position:relative;overflow:hidden;color:#fff;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.hero-inner::before{content:"";position:absolute;inset:0;background:rgba(10,42,37,.74)}
.hero-inner .wrap{position:relative;z-index:2;padding-top:60px;padding-bottom:64px}
.crumbs{font-size:13px;color:rgba(255,255,255,.7);margin-bottom:22px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumbs a{color:rgba(255,255,255,.8)}
.crumbs a:hover{color:#fff}
.crumbs span.sep{color:rgba(255,255,255,.4)}
.crumbs span.cur{color:#fff;font-weight:600}
.hero-inner h1{
  color:#fff;font-size:clamp(1.9rem,4.4vw,3rem);line-height:1.18;font-weight:700;
  letter-spacing:-.02em;margin-bottom:18px;max-width:900px;
}
.hero-lead{
  font-size:17px;line-height:1.85;color:rgba(255,255,255,.86);
  max-width:720px;margin:0 0 30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-bottom:30px}
.btn-paper{
  display:inline-flex;align-items:center;gap:8px;background:var(--paper);color:var(--ink);
  border:1px solid var(--paper);border-radius:var(--r-btn);padding:13px 24px;
  font-size:15px;font-weight:600;transition:transform .25s,box-shadow .25s,background .25s;
}
.btn-paper:hover{background:#fff;color:var(--ink);transform:translateY(-1px);box-shadow:0 12px 28px rgba(0,0,0,.16)}
.btn-line{
  display:inline-flex;align-items:center;gap:8px;background:transparent;color:#fff;
  border:1px solid rgba(255,255,255,.55);border-radius:var(--r-btn);padding:12px 22px;
  font-size:15px;font-weight:600;transition:background .25s,border-color .25s;
}
.btn-line:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}
.hero-facts{display:flex;flex-wrap:wrap;align-items:center;gap:0;font-size:14px;color:rgba(255,255,255,.8)}
.hero-facts span{padding:0 16px;border-left:1px solid rgba(255,255,255,.28)}
.hero-facts span:first-child{padding-left:0;border-left:0}

/* ============ 承诺条 ============ */
.promise-bar{background:#fff;border-bottom:1px solid var(--line)}
.promise-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.promise-item{padding:32px 26px;border-left:1px solid var(--line)}
.promise-item:first-child{border-left:0;padding-left:0}
.promise-num{
  font-family:var(--serif);font-size:34px;line-height:1;font-weight:700;color:var(--ink);
  letter-spacing:-.02em;margin-bottom:10px;
}
.promise-num em{font-style:normal;font-size:15px;color:var(--clay);margin-left:3px;font-family:var(--sans);font-weight:600}
.promise-lab{font-size:14px;color:var(--text-2);line-height:1.7}

/* ============ 联系区 5-7 分栏 ============ */
.contact-grid{display:grid;grid-template-columns:7fr 5fr;gap:28px;align-items:start}
.card-base{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh)}
.form-card{padding:32px}
.form-card h2{font-size:24px;font-weight:700;margin-bottom:10px}
.form-note{font-size:14.5px;color:var(--text-2);line-height:1.8;margin:0 0 26px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{margin-bottom:20px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field .hint{font-size:13px;color:var(--text-3);font-weight:400;margin-left:6px}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-input);
  padding:12px 14px;font-size:15px;color:var(--text);background:#fff;
  transition:border-color .2s,box-shadow .2s;line-height:1.6;
}
.field textarea{min-height:132px;resize:vertical}
.field select{
  appearance:none;padding-right:42px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%230F3A34' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 15px center;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(15,58,52,.13);
}
.field .err-msg{display:none;font-size:13px;color:var(--err);margin-top:6px}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:var(--err)}
.field.invalid .err-msg{display:block}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:4px}
.form-foot .btn-main{min-width:150px;justify-content:center}
.form-foot .tip{font-size:13px;color:var(--text-3);line-height:1.7;flex:1;min-width:180px}
.form-status{
  display:none;margin-top:18px;padding:13px 16px;border-radius:var(--r-input);
  font-size:14px;line-height:1.7;border:1px solid transparent;
}
.form-status.show{display:block}
.form-status.ok{background:rgba(46,125,107,.08);border-color:rgba(46,125,107,.35);color:var(--ok)}
.form-status.bad{background:rgba(180,69,58,.07);border-color:rgba(180,69,58,.32);color:var(--err)}

/* 右侧信息卡 */
.info-card{padding:26px}
.info-card h3{font-size:17px;font-weight:600;margin-bottom:18px;font-family:var(--sans);color:var(--ink)}
.info-list{list-style:none;padding:0;margin:0 0 24px}
.info-list li{display:flex;gap:12px;padding:13px 0;border-bottom:1px dashed var(--line);font-size:14.5px;color:var(--text-2);line-height:1.75}
.info-list li:last-child{border-bottom:0}
.info-list li strong{color:var(--ink);font-weight:600;flex:0 0 76px;font-size:14px}
.qr-box{
  display:flex;gap:16px;align-items:center;padding:18px;
  background:var(--soft);border-radius:var(--r-card);margin-bottom:16px;
}
.qr-code{
  width:78px;height:78px;background:#fff;border:1px solid var(--line);
  border-radius:8px;display:grid;place-items:center;flex:0 0 auto;
}
.qr-box h4{font-size:15px;font-family:var(--sans);font-weight:600;margin-bottom:6px}
.qr-box p{font-size:13px;color:var(--text-2);line-height:1.7;margin:0}
.map-box{
  position:relative;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;background:#fff;padding:20px;
}
.map-box .map-art{opacity:.5;margin-bottom:12px}
.map-box h4{font-size:15px;font-family:var(--sans);font-weight:600;margin-bottom:6px}
.map-box p{font-size:13px;color:var(--text-2);line-height:1.7;margin:0}

/* ============ 服务承诺细线条 ============ */
.commit-line{
  margin-top:56px;border-top:1px solid var(--line);padding-top:22px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
}
.commit-line div{font-size:13.5px;color:var(--text-2);display:flex;gap:9px;align-items:flex-start;line-height:1.7}
.commit-line svg{flex:0 0 auto;margin-top:4px;color:var(--clay)}

/* ============ 处理流程时间线 ============ */
.flow-wrap{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.timeline{position:relative;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:35px;top:12px;bottom:12px;
  border-left:1px dashed var(--line);
}
.tl-item{position:relative;display:grid;grid-template-columns:72px 1fr;gap:26px;padding:0 0 40px}
.tl-item:last-child{padding-bottom:0}
.tl-num{
  width:72px;height:72px;border-radius:50%;background:var(--paper);
  border:1px solid var(--line);display:grid;place-items:center;
  font-family:var(--serif);font-size:24px;font-weight:700;color:var(--ink);
  position:relative;z-index:2;
}
.tl-item:first-child .tl-num{background:var(--ink);border-color:var(--ink);color:#fff}
.tl-body{padding-top:6px}
.tl-body h3{font-size:20px;font-weight:600;font-family:var(--sans);margin-bottom:10px}
.tl-body p{font-size:15px;color:var(--text-2);line-height:1.85;margin:0;max-width:720px}
.tl-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.chip{
  display:inline-flex;align-items:center;font-size:12.5px;line-height:1;
  padding:7px 12px;border-radius:999px;border:1px solid var(--line);
  background:var(--paper);color:var(--ink);
}
.chip-clay{background:rgba(194,112,61,.1);border-color:rgba(194,112,61,.3);color:#8C4B24}

/* ============ 支持范围卡片 ============ */
.scope-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.scope-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh);
  transition:transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s;
  display:flex;flex-direction:column;
}
.scope-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hov)}
.scope-thumb{aspect-ratio:4/3;overflow:hidden;background:var(--soft)}
.scope-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.scope-card:hover .scope-thumb img{transform:scale(1.03)}
.scope-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.scope-body h3{font-size:17.5px;font-family:var(--sans);font-weight:600;margin-bottom:10px}
.scope-body p{font-size:14px;color:var(--text-2);line-height:1.8;margin:0 0 16px;flex:1}
.scope-body .chip{align-self:flex-start}

/* ============ FAQ ============ */
.faq-section{background:linear-gradient(180deg,#F6F4EF 0%,#EFEBE3 100%)}
.accordion.faq-acc{max-width:900px;margin:0 auto}
.faq-acc .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card)!important;
  margin-bottom:14px;overflow:hidden;box-shadow:var(--sh);
}
.faq-acc .accordion-header{margin:0}
.faq-acc .accordion-button{
  background:#fff;color:var(--ink);font-size:17px;font-weight:600;
  padding:20px 58px 20px 24px;line-height:1.6;border-radius:var(--r-card)!important;
  box-shadow:none;transition:color .2s,background .2s;
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--ink);background:#fff;box-shadow:inset 3px 0 0 var(--clay);
}
.faq-acc .accordion-button:focus{box-shadow:inset 3px 0 0 var(--clay);outline:none}
.faq-acc .accordion-button::after{
  content:"+";background-image:none;width:30px;height:30px;
  display:grid;place-items:center;font-size:21px;font-weight:400;
  color:var(--clay);line-height:1;position:absolute;right:22px;top:50%;
  transform:translateY(-50%);transition:transform .25s;
}
.faq-acc .accordion-button:not(.collapsed)::after{content:"−";transform:translateY(-50%) rotate(180deg)}
.faq-acc .accordion-body{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--text-2)}
.faq-acc .accordion-body p{margin:0 0 10px}
.faq-acc .accordion-body p:last-child{margin-bottom:0}

/* ============ CTA 通栏 ============ */
.cta-band{background:var(--ink);color:#fff}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:28px;padding:64px 0;
}
.cta-inner h2{color:#fff;font-size:clamp(1.4rem,2.6vw,2rem);line-height:1.3;margin-bottom:12px;font-weight:700}
.cta-inner p{color:rgba(255,255,255,.75);font-size:15px;line-height:1.8;margin:0;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center}
.cta-band .text-link{color:#fff;border-bottom-color:var(--clay)}
.cta-band .text-link:hover{color:#fff}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--paper);padding:64px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.foot-brand-head{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.site-footer .logo-mark{background:var(--paper);color:var(--ink)}
.foot-name{font-family:var(--serif);font-size:19px;font-weight:700;color:#fff}
.foot-brand p{font-size:13px;color:rgba(246,244,239,.7);line-height:1.85;margin:0;max-width:330px}
.foot-col h4{font-size:14px;color:rgba(246,244,239,.55);font-weight:600;margin-bottom:16px;font-family:var(--sans)}
.foot-col ul{list-style:none;padding:0;margin:0;display:grid;gap:11px}
.foot-col a{font-size:13px;color:rgba(246,244,239,.86)}
.foot-col a:hover{color:var(--clay)}
.foot-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(246,244,239,.16);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
  font-size:12px;color:rgba(246,244,239,.6);line-height:1.8;
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .42s cubic-bezier(.2,.7,.2,1),transform .42s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .scope-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991px){
  body{padding-bottom:76px}
  .wrap{padding:0 24px}
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .nav-links{display:none}
  .tabbar{display:flex}
  .contact-grid{grid-template-columns:1fr}
  .hero-inner .wrap{padding-top:44px;padding-bottom:48px}
  .promise-grid{grid-template-columns:repeat(2,1fr)}
  .promise-item{border-left:0;border-top:1px solid var(--line);padding:24px 0}
  .promise-item:first-child,.promise-item:nth-child(2){border-top:0}
  .promise-item:nth-child(even){padding-left:24px;border-left:1px solid var(--line)}
  .commit-line{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px 28px}
  .cta-inner{padding:56px 0}
  .timeline::before{left:29px}
  .tl-item{grid-template-columns:60px 1fr;gap:20px}
  .tl-num{width:60px;height:60px;font-size:21px}
}
@media (max-width:767px){
  .field-row{grid-template-columns:1fr}
  .hero-facts span{padding:0 12px}
  .hero-facts{font-size:13px}
  .form-card{padding:24px}
}
@media (max-width:575px){
  .wrap{padding:0 18px}
  .section{padding:56px 0}
  .nav-right .btn-sm{display:none}
  .scope-grid{grid-template-columns:1fr}
  .promise-grid{grid-template-columns:1fr}
  .promise-item{padding:20px 0!important;border-left:0!important;border-top:1px solid var(--line)!important}
  .promise-item:first-child{border-top:0!important}
  .commit-line{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .cta-actions .btn-paper,.cta-actions .btn-line{width:100%;justify-content:center}
  .form-foot .btn-main{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}